From: Len Brown Date: Fri, 9 Jan 2009 09:01:26 +0000 (-0500) Subject: Merge branch 'drivers-platform' into release X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d97c0defba25a959a990f6d4759f43075540832e;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git Merge branch 'drivers-platform' into release Conflicts: drivers/misc/Kconfig Signed-off-by: Len Brown --- d97c0defba25a959a990f6d4759f43075540832e diff --cc drivers/Makefile index 6326f4dbbdab,46d4828042c3..c1bf41737936 --- a/drivers/Makefile +++ b/drivers/Makefile @@@ -104,4 -100,6 +104,5 @@@ obj-$(CONFIG_PPC_PS3) += ps3 obj-$(CONFIG_OF) += of/ obj-$(CONFIG_SSB) += ssb/ obj-$(CONFIG_VIRTIO) += virtio/ -obj-$(CONFIG_REGULATOR) += regulator/ obj-$(CONFIG_STAGING) += staging/ + obj-y += platform/ diff --cc drivers/misc/Makefile index 5de863a0e395,d5749a7bc777..9cf8ae6e4b39 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@@ -8,17 -7,9 +7,10 @@@ obj-$(CONFIG_HDPU_FEATURES) += hdpuftrs obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o - obj-$(CONFIG_HP_WMI) += hp-wmi.o obj-$(CONFIG_ICS932S401) += ics932s401.o - obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o obj-$(CONFIG_LKDTM) += lkdtm.o obj-$(CONFIG_TIFM_CORE) += tifm_core.o +obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o obj-$(CONFIG_PHANTOM) += phantom.o obj-$(CONFIG_SGI_IOC4) += ioc4.o diff --cc drivers/platform/x86/Kconfig index 000000000000,31f3ce2ac01c..e65448e99b48 mode 000000,100644..100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@@ -1,0 -1,375 +1,375 @@@ + # + # X86 Platform Specific Drivers + # + + menuconfig X86_PLATFORM_DEVICES + bool "X86 Platform Specific Device Drivers" + default y + ---help--- + Say Y here to get to see options for device drivers for various + x86 platforms, including vendor-specific laptop extension drivers. + This option alone does not add any kernel code. + + If you say N, all options in this submenu will be skipped and disabled. + + if X86_PLATFORM_DEVICES + + config ACER_WMI + tristate "Acer WMI Laptop Extras (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on ACPI + depends on LEDS_CLASS + depends on NEW_LEDS + depends on BACKLIGHT_CLASS_DEVICE + depends on SERIO_I8042 + depends on RFKILL + select ACPI_WMI + ---help--- + This is a driver for newer Acer (and Wistron) laptops. It adds + wireless radio and bluetooth control, and on some laptops, + exposes the mail LED and LCD backlight. + + For more information about this driver see + + + If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M + here. + + config ASUS_LAPTOP + tristate "Asus Laptop Extras (EXPERIMENTAL)" + depends on ACPI + depends on EXPERIMENTAL && !ACPI_ASUS + depends on LEDS_CLASS + depends on NEW_LEDS + depends on BACKLIGHT_CLASS_DEVICE + ---help--- + This is the new Linux driver for Asus laptops. It may also support some + MEDION, JVC or VICTOR laptops. It makes all the extra buttons generate + standard ACPI events that go through /proc/acpi/events. It also adds + support for video output switching, LCD backlight control, Bluetooth and + Wlan control, and most importantly, allows you to blink those fancy LEDs. + + For more information and a userspace daemon for handling the extra + buttons see . + + If you have an ACPI-compatible ASUS laptop, say Y or M here. + + config FUJITSU_LAPTOP + tristate "Fujitsu Laptop Extras" + depends on ACPI + depends on INPUT + depends on BACKLIGHT_CLASS_DEVICE + ---help--- + This is a driver for laptops built by Fujitsu: + + * P2xxx/P5xxx/S6xxx/S7xxx series Lifebooks + * Possibly other Fujitsu laptop models + * Tested with S6410 and S7020 + + It adds support for LCD brightness control and some hotkeys. + + If you have a Fujitsu laptop, say Y or M here. + + config FUJITSU_LAPTOP_DEBUG + bool "Verbose debug mode for Fujitsu Laptop Extras" + depends on FUJITSU_LAPTOP + default n + ---help--- + Enables extra debug output from the fujitsu extras driver, at the + expense of a slight increase in driver size. + + If you are not sure, say N here. + + config TC1100_WMI + tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)" + depends on !X86_64 + depends on EXPERIMENTAL + depends on ACPI + select ACPI_WMI + ---help--- + This is a driver for the WMI extensions (wireless and bluetooth power + control) of the HP Compaq TC1100 tablet. + + config HP_WMI + tristate "HP WMI extras" + depends on ACPI_WMI + depends on INPUT + depends on RFKILL + help + Say Y here if you want to support WMI-based hotkeys on HP laptops and + to read data from WMI such as docking or ambient light sensor state. + + To compile this driver as a module, choose M here: the module will + be called hp-wmi. + + config MSI_LAPTOP + tristate "MSI Laptop Extras" + depends on ACPI + depends on BACKLIGHT_CLASS_DEVICE + ---help--- + This is a driver for laptops built by MSI (MICRO-STAR + INTERNATIONAL): + + MSI MegaBook S270 (MS-1013) + Cytron/TCM/Medion/Tchibo MD96100/SAM2000 + + It adds support for Bluetooth, WLAN and LCD brightness control. + + More information about this driver is available at + . + + If you have an MSI S270 laptop, say Y or M here. + + config PANASONIC_LAPTOP + tristate "Panasonic Laptop Extras" + depends on INPUT && ACPI + depends on BACKLIGHT_CLASS_DEVICE + ---help--- + This driver adds support for access to backlight control and hotkeys + on Panasonic Let's Note laptops. + + If you have a Panasonic Let's note laptop (such as the R1(N variant), + R2, R3, R5, T2, W2 and Y2 series), say Y. + + config COMPAL_LAPTOP + tristate "Compal Laptop Extras" + depends on ACPI + depends on BACKLIGHT_CLASS_DEVICE + ---help--- + This is a driver for laptops built by Compal: + + Compal FL90/IFL90 + Compal FL91/IFL91 + Compal FL92/JFL92 + Compal FT00/IFT00 + + It adds support for Bluetooth, WLAN and LCD brightness control. + + If you have an Compal FL9x/IFL9x/FT00 laptop, say Y or M here. + + config SONY_LAPTOP + tristate "Sony Laptop Extras" + depends on ACPI + select BACKLIGHT_CLASS_DEVICE + depends on INPUT + ---help--- + This mini-driver drives the SNC and SPIC devices present in the ACPI + BIOS of the Sony Vaio laptops. + + It gives access to some extra laptop functionalities like Bluetooth, + screen brightness control, Fn keys and allows powering on/off some + devices. + + Read for more information. + + config SONYPI_COMPAT + bool "Sonypi compatibility" + depends on SONY_LAPTOP + ---help--- + Build the sonypi driver compatibility code into the sony-laptop driver. + + config THINKPAD_ACPI + tristate "ThinkPad ACPI Laptop Extras" + depends on ACPI + select BACKLIGHT_LCD_SUPPORT + select BACKLIGHT_CLASS_DEVICE + select HWMON + select NVRAM + select INPUT + select NEW_LEDS + select LEDS_CLASS + select NET + select RFKILL + ---help--- + This is a driver for the IBM and Lenovo ThinkPad laptops. It adds + support for Fn-Fx key combinations, Bluetooth control, video + output switching, ThinkLight control, UltraBay eject and more. + For more information about this driver see + and + . + + This driver was formerly known as ibm-acpi. + + If you have an IBM or Lenovo ThinkPad laptop, say Y or M here. + + config THINKPAD_ACPI_DEBUG + bool "Verbose debug mode" + depends on THINKPAD_ACPI + default n + ---help--- + Enables extra debugging information, at the expense of a slightly + increase in driver size. + + If you are not sure, say N here. + + config THINKPAD_ACPI_DOCK + bool "Legacy Docking Station Support" + depends on THINKPAD_ACPI + depends on ACPI_DOCK=n + default n + ---help--- + Allows the thinkpad_acpi driver to handle docking station events. + This support was made obsolete by the generic ACPI docking station + support (CONFIG_ACPI_DOCK). It will allow locking and removing the + laptop from the docking station, but will not properly connect PCI + devices. + + If you are not sure, say N here. + + config THINKPAD_ACPI_BAY + bool "Legacy Removable Bay Support" + depends on THINKPAD_ACPI + default y + ---help--- + Allows the thinkpad_acpi driver to handle removable bays. It will + electrically disable the device in the bay, and also generate + notifications when the bay lever is ejected or inserted. + + If you are not sure, say Y here. + + config THINKPAD_ACPI_VIDEO + bool "Video output control support" + depends on THINKPAD_ACPI + default y + ---help--- + Allows the thinkpad_acpi driver to provide an interface to control + the various video output ports. + + This feature often won't work well, depending on ThinkPad model, + display state, video output devices in use, whether there is a X + server running, phase of the moon, and the current mood of + Schroedinger's cat. If you can use X.org's RandR to control + your ThinkPad's video output ports instead of this feature, + don't think twice: do it and say N here to save some memory. + + If you are not sure, say Y here. + + config THINKPAD_ACPI_HOTKEY_POLL + bool "Support NVRAM polling for hot keys" + depends on THINKPAD_ACPI + default y + ---help--- + Some thinkpad models benefit from NVRAM polling to detect a few of + the hot key press events. If you know your ThinkPad model does not + need to do NVRAM polling to support any of the hot keys you use, + unselecting this option will save about 1kB of memory. + + ThinkPads T40 and newer, R52 and newer, and X31 and newer are + unlikely to need NVRAM polling in their latest BIOS versions. + + NVRAM polling can detect at most the following keys: ThinkPad/Access + IBM, Zoom, Switch Display (fn+F7), ThinkLight, Volume up/down/mute, + Brightness up/down, Display Expand (fn+F8), Hibernate (fn+F12). + + If you are not sure, say Y here. The driver enables polling only if + it is strictly necessary to do so. + + config INTEL_MENLOW + tristate "Thermal Management driver for Intel menlow platform" + depends on ACPI_THERMAL + select THERMAL + ---help--- + ACPI thermal management enhancement driver on + Intel Menlow platform. + + If unsure, say N. + + config EEEPC_LAPTOP + tristate "Eee PC Hotkey Driver (EXPERIMENTAL)" + depends on ACPI - depends on BACKLIGHT_CLASS_DEVICE - depends on HWMON + depends on EXPERIMENTAL - depends on RFKILL ++ select BACKLIGHT_CLASS_DEVICE ++ select HWMON ++ select RFKILL + ---help--- + This driver supports the Fn-Fx keys on Eee PC laptops. + It also adds the ability to switch camera/wlan on/off. + + If you have an Eee PC laptop, say Y or M here. + + + config ACPI_WMI + tristate "WMI (EXPERIMENTAL)" + depends on ACPI + depends on EXPERIMENTAL + help + This driver adds support for the ACPI-WMI (Windows Management + Instrumentation) mapper device (PNP0C14) found on some systems. + + ACPI-WMI is a proprietary extension to ACPI to expose parts of the + ACPI firmware to userspace - this is done through various vendor + defined methods and data blocks in a PNP0C14 device, which are then + made available for userspace to call. + + The implementation of this in Linux currently only exposes this to + other kernel space drivers. + + This driver is a required dependency to build the firmware specific + drivers needed on many machines, including Acer and HP laptops. + + It is safe to enable this driver even if your DSDT doesn't define + any ACPI-WMI devices. + + config ACPI_ASUS + tristate "ASUS/Medion Laptop Extras" + depends on ACPI + select BACKLIGHT_CLASS_DEVICE + ---help--- + This driver provides support for extra features of ACPI-compatible + ASUS laptops. As some of Medion laptops are made by ASUS, it may also + support some Medion laptops (such as 9675 for example). It makes all + the extra buttons generate standard ACPI events that go through + /proc/acpi/events, and (on some models) adds support for changing the + display brightness and output, switching the LCD backlight on and off, + and most importantly, allows you to blink those fancy LEDs intended + for reporting mail and wireless status. + + Note: display switching code is currently considered EXPERIMENTAL, + toying with these values may even lock your machine. + + All settings are changed via /proc/acpi/asus directory entries. Owner + and group for these entries can be set with asus_uid and asus_gid + parameters. + + More information and a userspace daemon for handling the extra buttons + at . + + If you have an ACPI-compatible ASUS laptop, say Y or M here. This + driver is still under development, so if your laptop is unsupported or + something works not quite as expected, please use the mailing list + available on the above page (acpi4asus-user@lists.sourceforge.net). + + NOTE: This driver is deprecated and will probably be removed soon, + use asus-laptop instead. + + config ACPI_TOSHIBA + tristate "Toshiba Laptop Extras" + depends on ACPI + depends on INPUT + select INPUT_POLLDEV + select NET + select RFKILL + select BACKLIGHT_CLASS_DEVICE + ---help--- + This driver adds support for access to certain system settings + on "legacy free" Toshiba laptops. These laptops can be recognized by + their lack of a BIOS setup menu and APM support. + + On these machines, all system configuration is handled through the + ACPI. This driver is required for access to controls not covered + by the general ACPI drivers, such as LCD brightness, video output, + etc. + + This driver differs from the non-ACPI Toshiba laptop driver (located + under "Processor type and features") in several aspects. + Configuration is accessed by reading and writing text files in the + /proc tree instead of by program interface to /dev. Furthermore, no + power management functions are exposed, as those are handled by the + general ACPI drivers. + + More information about this driver is available at + . + + If you have a legacy free Toshiba laptop (such as the Libretto L1 + series), say Y. + endif # X86_PLATFORM_DEVICES diff --cc drivers/platform/x86/fujitsu-laptop.c index 000000000000,a7dd3e9fb79d..65dc41540c62 mode 000000,100644..100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@@ -1,0 -1,1126 +1,1293 @@@ + /*-*-linux-c-*-*/ + + /* + Copyright (C) 2007,2008 Jonathan Woithe + Copyright (C) 2008 Peter Gruber ++ Copyright (C) 2008 Tony Vroon + Based on earlier work: + Copyright (C) 2003 Shane Spencer + Adrian Yee + + Templated from msi-laptop.c and thinkpad_acpi.c which is copyright + by its respective authors. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301, USA. + */ + + /* + * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional + * features made available on a range of Fujitsu laptops including the + * P2xxx/P5xxx/S6xxx/S7xxx series. + * + * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/; + * others may be added at a later date. + * + * lcd_level - Screen brightness: contains a single integer in the + * range 0..7. (rw) + * + * In addition to these platform device attributes the driver + * registers itself in the Linux backlight control subsystem and is + * available to userspace under /sys/class/backlight/fujitsu-laptop/. + * + * Hotkeys present on certain Fujitsu laptops (eg: the S6xxx series) are + * also supported by this driver. + * + * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and + * P8010. It should work on most P-series and S-series Lifebooks, but + * YMMV. + * + * The module parameter use_alt_lcd_levels switches between different ACPI + * brightness controls which are used by different Fujitsu laptops. In most + * cases the correct method is automatically detected. "use_alt_lcd_levels=1" + * is applicable for a Fujitsu Lifebook S6410 if autodetection fails. + * + */ + + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include ++#ifdef CONFIG_LEDS_CLASS ++#include ++#endif + -#define FUJITSU_DRIVER_VERSION "0.4.3" ++#define FUJITSU_DRIVER_VERSION "0.5.0" + + #define FUJITSU_LCD_N_LEVELS 8 + + #define ACPI_FUJITSU_CLASS "fujitsu" + #define ACPI_FUJITSU_HID "FUJ02B1" + #define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver" + #define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1" + #define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3" + #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver" + #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3" + + #define ACPI_FUJITSU_NOTIFY_CODE1 0x80 + + #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86 + #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87 + ++/* FUNC interface - command values */ ++#define FUNC_RFKILL 0x1000 ++#define FUNC_LEDS 0x1001 ++#define FUNC_BUTTONS 0x1002 ++#define FUNC_BACKLIGHT 0x1004 ++ ++/* FUNC interface - responses */ ++#define UNSUPPORTED_CMD 0x80000000 ++ ++#ifdef CONFIG_LEDS_CLASS ++/* FUNC interface - LED control */ ++#define FUNC_LED_OFF 0x1 ++#define FUNC_LED_ON 0x30001 ++#define KEYBOARD_LAMPS 0x100 ++#define LOGOLAMP_POWERON 0x2000 ++#define LOGOLAMP_ALWAYS 0x4000 ++#endif ++ + /* Hotkey details */ + #define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */ + #define KEY2_CODE 0x411 + #define KEY3_CODE 0x412 + #define KEY4_CODE 0x413 + + #define MAX_HOTKEY_RINGBUFFER_SIZE 100 + #define RINGBUFFERSIZE 40 + + /* Debugging */ + #define FUJLAPTOP_LOG ACPI_FUJITSU_HID ": " + #define FUJLAPTOP_ERR KERN_ERR FUJLAPTOP_LOG + #define FUJLAPTOP_NOTICE KERN_NOTICE FUJLAPTOP_LOG + #define FUJLAPTOP_INFO KERN_INFO FUJLAPTOP_LOG + #define FUJLAPTOP_DEBUG KERN_DEBUG FUJLAPTOP_LOG + + #define FUJLAPTOP_DBG_ALL 0xffff + #define FUJLAPTOP_DBG_ERROR 0x0001 + #define FUJLAPTOP_DBG_WARN 0x0002 + #define FUJLAPTOP_DBG_INFO 0x0004 + #define FUJLAPTOP_DBG_TRACE 0x0008 + + #define dbg_printk(a_dbg_level, format, arg...) \ + do { if (dbg_level & a_dbg_level) \ + printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \ + } while (0) + #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG + #define vdbg_printk(a_dbg_level, format, arg...) \ + dbg_printk(a_dbg_level, format, ## arg) + #else + #define vdbg_printk(a_dbg_level, format, arg...) + #endif + + /* Device controlling the backlight and associated keys */ + struct fujitsu_t { + acpi_handle acpi_handle; + struct acpi_device *dev; + struct input_dev *input; + char phys[32]; + struct backlight_device *bl_device; + struct platform_device *pf_device; + int keycode1, keycode2, keycode3, keycode4; + + unsigned int max_brightness; + unsigned int brightness_changed; + unsigned int brightness_level; + }; + + static struct fujitsu_t *fujitsu; + static int use_alt_lcd_levels = -1; -static int disable_brightness_keys = -1; + static int disable_brightness_adjust = -1; + + /* Device used to access other hotkeys on the laptop */ + struct fujitsu_hotkey_t { + acpi_handle acpi_handle; + struct acpi_device *dev; + struct input_dev *input; + char phys[32]; + struct platform_device *pf_device; + struct kfifo *fifo; + spinlock_t fifo_lock; - - unsigned int irb; /* info about the pressed buttons */ ++ int rfkill_state; ++ int logolamp_registered; ++ int kblamps_registered; + }; + + static struct fujitsu_hotkey_t *fujitsu_hotkey; + + static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event, + void *data); + ++#ifdef CONFIG_LEDS_CLASS ++static enum led_brightness logolamp_get(struct led_classdev *cdev); ++static void logolamp_set(struct led_classdev *cdev, ++ enum led_brightness brightness); ++ ++struct led_classdev logolamp_led = { ++ .name = "fujitsu::logolamp", ++ .brightness_get = logolamp_get, ++ .brightness_set = logolamp_set ++}; ++ ++static enum led_brightness kblamps_get(struct led_classdev *cdev); ++static void kblamps_set(struct led_classdev *cdev, ++ enum led_brightness brightness); ++ ++struct led_classdev kblamps_led = { ++ .name = "fujitsu::kblamps", ++ .brightness_get = kblamps_get, ++ .brightness_set = kblamps_set ++}; ++#endif ++ + #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG + static u32 dbg_level = 0x03; + #endif + + static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data); + ++/* Fujitsu ACPI interface function */ ++ ++static int call_fext_func(int cmd, int arg0, int arg1, int arg2) ++{ ++ acpi_status status = AE_OK; ++ union acpi_object params[4] = { ++ { .type = ACPI_TYPE_INTEGER }, ++ { .type = ACPI_TYPE_INTEGER }, ++ { .type = ACPI_TYPE_INTEGER }, ++ { .type = ACPI_TYPE_INTEGER } ++ }; ++ struct acpi_object_list arg_list = { 4, ¶ms[0] }; ++ struct acpi_buffer output; ++ union acpi_object out_obj; ++ acpi_handle handle = NULL; ++ ++ status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle); ++ if (ACPI_FAILURE(status)) { ++ vdbg_printk(FUJLAPTOP_DBG_ERROR, ++ "FUNC interface is not present\n"); ++ return -ENODEV; ++ } ++ ++ params[0].integer.value = cmd; ++ params[1].integer.value = arg0; ++ params[2].integer.value = arg1; ++ params[3].integer.value = arg2; ++ ++ output.length = sizeof(out_obj); ++ output.pointer = &out_obj; ++ ++ status = acpi_evaluate_object(handle, NULL, &arg_list, &output); ++ if (ACPI_FAILURE(status)) { ++ vdbg_printk(FUJLAPTOP_DBG_WARN, ++ "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n", ++ cmd, arg0, arg1, arg2); ++ return -ENODEV; ++ } ++ ++ if (out_obj.type != ACPI_TYPE_INTEGER) { ++ vdbg_printk(FUJLAPTOP_DBG_WARN, ++ "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not " ++ "return an integer\n", ++ cmd, arg0, arg1, arg2); ++ return -ENODEV; ++ } ++ ++ vdbg_printk(FUJLAPTOP_DBG_TRACE, ++ "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n", ++ cmd, arg0, arg1, arg2, (int)out_obj.integer.value); ++ return out_obj.integer.value; ++} ++ ++#ifdef CONFIG_LEDS_CLASS ++/* LED class callbacks */ ++ ++static void logolamp_set(struct led_classdev *cdev, ++ enum led_brightness brightness) ++{ ++ if (brightness >= LED_FULL) { ++ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON); ++ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON); ++ } else if (brightness >= LED_HALF) { ++ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON); ++ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF); ++ } else { ++ call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF); ++ } ++} ++ ++static void kblamps_set(struct led_classdev *cdev, ++ enum led_brightness brightness) ++{ ++ if (brightness >= LED_FULL) ++ call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON); ++ else ++ call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF); ++} ++ ++static enum led_brightness logolamp_get(struct led_classdev *cdev) ++{ ++ enum led_brightness brightness = LED_OFF; ++ int poweron, always; ++ ++ poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0); ++ if (poweron == FUNC_LED_ON) { ++ brightness = LED_HALF; ++ always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0); ++ if (always == FUNC_LED_ON) ++ brightness = LED_FULL; ++ } ++ return brightness; ++} ++ ++static enum led_brightness kblamps_get(struct led_classdev *cdev) ++{ ++ enum led_brightness brightness = LED_OFF; ++ ++ if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON) ++ brightness = LED_FULL; ++ ++ return brightness; ++} ++#endif ++ + /* Hardware access for LCD brightness control */ + + static int set_lcd_level(int level) + { + acpi_status status = AE_OK; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list arg_list = { 1, &arg0 }; + acpi_handle handle = NULL; + + vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n", + level); + + if (level < 0 || level >= fujitsu->max_brightness) + return -EINVAL; + + if (!fujitsu) + return -EINVAL; + + status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle); + if (ACPI_FAILURE(status)) { + vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n"); + return -ENODEV; + } + + arg0.integer.value = level; + + status = acpi_evaluate_object(handle, NULL, &arg_list, NULL); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return 0; + } + + static int set_lcd_level_alt(int level) + { + acpi_status status = AE_OK; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list arg_list = { 1, &arg0 }; + acpi_handle handle = NULL; + + vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n", + level); + + if (level < 0 || level >= fujitsu->max_brightness) + return -EINVAL; + + if (!fujitsu) + return -EINVAL; + + status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle); + if (ACPI_FAILURE(status)) { + vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n"); + return -ENODEV; + } + + arg0.integer.value = level; + + status = acpi_evaluate_object(handle, NULL, &arg_list, NULL); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return 0; + } + + static int get_lcd_level(void) + { + unsigned long long state = 0; + acpi_status status = AE_OK; + + vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n"); + + status = + acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state); + if (status < 0) + return status; + + fujitsu->brightness_level = state & 0x0fffffff; + + if (state & 0x80000000) + fujitsu->brightness_changed = 1; + else + fujitsu->brightness_changed = 0; + + return fujitsu->brightness_level; + } + + static int get_max_brightness(void) + { + unsigned long long state = 0; + acpi_status status = AE_OK; + + vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n"); + + status = + acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state); + if (status < 0) + return status; + + fujitsu->max_brightness = state; + + return fujitsu->max_brightness; + } + -static int get_lcd_level_alt(void) -{ - unsigned long long state = 0; - acpi_status status = AE_OK; - - vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLS\n"); - - status = - acpi_evaluate_integer(fujitsu->acpi_handle, "GBLS", NULL, &state); - if (status < 0) - return status; - - fujitsu->brightness_level = state & 0x0fffffff; - - if (state & 0x80000000) - fujitsu->brightness_changed = 1; - else - fujitsu->brightness_changed = 0; - - return fujitsu->brightness_level; -} - + /* Backlight device stuff */ + + static int bl_get_brightness(struct backlight_device *b) + { - if (use_alt_lcd_levels) - return get_lcd_level_alt(); - else - return get_lcd_level(); ++ return get_lcd_level(); + } + + static int bl_update_status(struct backlight_device *b) + { ++ int ret; ++ if (b->props.power == 4) ++ ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3); ++ else ++ ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0); ++ if (ret != 0) ++ vdbg_printk(FUJLAPTOP_DBG_ERROR, ++ "Unable to adjust backlight power, error code %i\n", ++ ret); ++ + if (use_alt_lcd_levels) - return set_lcd_level_alt(b->props.brightness); ++ ret = set_lcd_level_alt(b->props.brightness); + else - return set_lcd_level(b->props.brightness); ++ ret = set_lcd_level(b->props.brightness); ++ if (ret != 0) ++ vdbg_printk(FUJLAPTOP_DBG_ERROR, ++ "Unable to adjust LCD brightness, error code %i\n", ++ ret); ++ return ret; + } + + static struct backlight_ops fujitsubl_ops = { + .get_brightness = bl_get_brightness, + .update_status = bl_update_status, + }; + + /* Platform LCD brightness device */ + + static ssize_t + show_max_brightness(struct device *dev, + struct device_attribute *attr, char *buf) + { + + int ret; + + ret = get_max_brightness(); + if (ret < 0) + return ret; + + return sprintf(buf, "%i\n", ret); + } + + static ssize_t + show_brightness_changed(struct device *dev, + struct device_attribute *attr, char *buf) + { + + int ret; + + ret = fujitsu->brightness_changed; + if (ret < 0) + return ret; + + return sprintf(buf, "%i\n", ret); + } + + static ssize_t show_lcd_level(struct device *dev, + struct device_attribute *attr, char *buf) + { + + int ret; + - if (use_alt_lcd_levels) - ret = get_lcd_level_alt(); - else - ret = get_lcd_level(); ++ ret = get_lcd_level(); + if (ret < 0) + return ret; + + return sprintf(buf, "%i\n", ret); + } + + static ssize_t store_lcd_level(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) + { + + int level, ret; + + if (sscanf(buf, "%i", &level) != 1 + || (level < 0 || level >= fujitsu->max_brightness)) + return -EINVAL; + + if (use_alt_lcd_levels) + ret = set_lcd_level_alt(level); + else + ret = set_lcd_level(level); + if (ret < 0) + return ret; + - if (use_alt_lcd_levels) - ret = get_lcd_level_alt(); - else - ret = get_lcd_level(); ++ ret = get_lcd_level(); + if (ret < 0) + return ret; + + return count; + } + -/* Hardware access for hotkey device */ - -static int get_irb(void) ++static ssize_t ++ignore_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t count) + { - unsigned long long state = 0; - acpi_status status = AE_OK; - - vdbg_printk(FUJLAPTOP_DBG_TRACE, "Get irb\n"); - - status = - acpi_evaluate_integer(fujitsu_hotkey->acpi_handle, "GIRB", NULL, - &state); - if (status < 0) - return status; ++ return count; ++} + - fujitsu_hotkey->irb = state; ++static ssize_t ++show_lid_state(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD) ++ return sprintf(buf, "unknown\n"); ++ if (fujitsu_hotkey->rfkill_state & 0x100) ++ return sprintf(buf, "open\n"); ++ else ++ return sprintf(buf, "closed\n"); ++} + - return fujitsu_hotkey->irb; ++static ssize_t ++show_dock_state(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD) ++ return sprintf(buf, "unknown\n"); ++ if (fujitsu_hotkey->rfkill_state & 0x200) ++ return sprintf(buf, "docked\n"); ++ else ++ return sprintf(buf, "undocked\n"); + } + + static ssize_t -ignore_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) ++show_radios_state(struct device *dev, ++ struct device_attribute *attr, char *buf) + { - return count; ++ if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD) ++ return sprintf(buf, "unknown\n"); ++ if (fujitsu_hotkey->rfkill_state & 0x20) ++ return sprintf(buf, "on\n"); ++ else ++ return sprintf(buf, "killed\n"); + } + + static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store); + static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed, + ignore_store); + static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level); ++static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store); ++static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store); ++static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store); + + static struct attribute *fujitsupf_attributes[] = { + &dev_attr_brightness_changed.attr, + &dev_attr_max_brightness.attr, + &dev_attr_lcd_level.attr, ++ &dev_attr_lid.attr, ++ &dev_attr_dock.attr, ++ &dev_attr_radios.attr, + NULL + }; + + static struct attribute_group fujitsupf_attribute_group = { + .attrs = fujitsupf_attributes + }; + + static struct platform_driver fujitsupf_driver = { + .driver = { + .name = "fujitsu-laptop", + .owner = THIS_MODULE, + } + }; + + static void dmi_check_cb_common(const struct dmi_system_id *id) + { + acpi_handle handle; - int have_blnf; + printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n", + id->ident); - have_blnf = ACPI_SUCCESS - (acpi_get_handle(NULL, "\\_SB.PCI0.GFX0.LCD.BLNF", &handle)); + if (use_alt_lcd_levels == -1) { - vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detecting usealt\n"); - use_alt_lcd_levels = 1; - } - if (disable_brightness_keys == -1) { - vdbg_printk(FUJLAPTOP_DBG_TRACE, - "auto-detecting disable_keys\n"); - disable_brightness_keys = have_blnf ? 1 : 0; - } - if (disable_brightness_adjust == -1) { - vdbg_printk(FUJLAPTOP_DBG_TRACE, - "auto-detecting disable_adjust\n"); - disable_brightness_adjust = have_blnf ? 0 : 1; ++ if (ACPI_SUCCESS(acpi_get_handle(NULL, ++ "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle))) ++ use_alt_lcd_levels = 1; ++ else ++ use_alt_lcd_levels = 0; ++ vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as " ++ "%i\n", use_alt_lcd_levels); + } + } + + static int dmi_check_cb_s6410(const struct dmi_system_id *id) + { + dmi_check_cb_common(id); + fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */ + fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */ + return 0; + } + + static int dmi_check_cb_s6420(const struct dmi_system_id *id) + { + dmi_check_cb_common(id); + fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */ + fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */ + return 0; + } + + static int dmi_check_cb_p8010(const struct dmi_system_id *id) + { + dmi_check_cb_common(id); + fujitsu->keycode1 = KEY_HELP; /* "Support" */ + fujitsu->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */ + fujitsu->keycode4 = KEY_WWW; /* "Internet" */ + return 0; + } + + static struct dmi_system_id fujitsu_dmi_table[] = { + { + .ident = "Fujitsu Siemens S6410", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"), + }, + .callback = dmi_check_cb_s6410}, + { + .ident = "Fujitsu Siemens S6420", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"), + }, + .callback = dmi_check_cb_s6420}, + { + .ident = "Fujitsu LifeBook P8010", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), + DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"), + }, + .callback = dmi_check_cb_p8010}, + {} + }; + + /* ACPI device for LCD brightness control */ + + static int acpi_fujitsu_add(struct acpi_device *device) + { + acpi_status status; + acpi_handle handle; + int result = 0; + int state = 0; + struct input_dev *input; + int error; + + if (!device) + return -EINVAL; + + fujitsu->acpi_handle = device->handle; + sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME); + sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); + device->driver_data = fujitsu; + + status = acpi_install_notify_handler(device->handle, + ACPI_DEVICE_NOTIFY, + acpi_fujitsu_notify, fujitsu); + + if (ACPI_FAILURE(status)) { + printk(KERN_ERR "Error installing notify handler\n"); + error = -ENODEV; + goto err_stop; + } + + fujitsu->input = input = input_allocate_device(); + if (!input) { + error = -ENOMEM; + goto err_uninstall_notify; + } + + snprintf(fujitsu->phys, sizeof(fujitsu->phys), + "%s/video/input0", acpi_device_hid(device)); + + input->name = acpi_device_name(device); + input->phys = fujitsu->phys; + input->id.bustype = BUS_HOST; + input->id.product = 0x06; + input->dev.parent = &device->dev; + input->evbit[0] = BIT(EV_KEY); + set_bit(KEY_BRIGHTNESSUP, input->keybit); + set_bit(KEY_BRIGHTNESSDOWN, input->keybit); + set_bit(KEY_UNKNOWN, input->keybit); + + error = input_register_device(input); + if (error) + goto err_free_input_dev; + + result = acpi_bus_get_power(fujitsu->acpi_handle, &state); + if (result) { + printk(KERN_ERR "Error reading power state\n"); + goto end; + } + + printk(KERN_INFO PREFIX "%s [%s] (%s)\n", + acpi_device_name(device), acpi_device_bid(device), + !device->power.state ? "on" : "off"); + + fujitsu->dev = device; + + if (ACPI_SUCCESS + (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) { + vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); + if (ACPI_FAILURE + (acpi_evaluate_object + (device->handle, METHOD_NAME__INI, NULL, NULL))) + printk(KERN_ERR "_INI Method failed\n"); + } + + /* do config (detect defaults) */ + use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0; - disable_brightness_keys = disable_brightness_keys == 1 ? 1 : 0; + disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0; + vdbg_printk(FUJLAPTOP_DBG_INFO, - "config: [alt interface: %d], [key disable: %d], [adjust disable: %d]\n", - use_alt_lcd_levels, disable_brightness_keys, - disable_brightness_adjust); ++ "config: [alt interface: %d], [adjust disable: %d]\n", ++ use_alt_lcd_levels, disable_brightness_adjust); + + if (get_max_brightness() <= 0) + fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS; - if (use_alt_lcd_levels) - get_lcd_level_alt(); - else - get_lcd_level(); ++ get_lcd_level(); + + return result; + + end: + err_free_input_dev: + input_free_device(input); + err_uninstall_notify: + acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, + acpi_fujitsu_notify); + err_stop: + + return result; + } + + static int acpi_fujitsu_remove(struct acpi_device *device, int type) + { + acpi_status status; + struct fujitsu_t *fujitsu = NULL; + + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + fujitsu = acpi_driver_data(device); + + status = acpi_remove_notify_handler(fujitsu->acpi_handle, + ACPI_DEVICE_NOTIFY, + acpi_fujitsu_notify); + + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + fujitsu->acpi_handle = NULL; + + return 0; + } + + /* Brightness notify */ + + static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data) + { + struct input_dev *input; + int keycode; + int oldb, newb; + + input = fujitsu->input; + + switch (event) { + case ACPI_FUJITSU_NOTIFY_CODE1: + keycode = 0; + oldb = fujitsu->brightness_level; - get_lcd_level(); /* the alt version always yields changed */ ++ get_lcd_level(); + newb = fujitsu->brightness_level; + + vdbg_printk(FUJLAPTOP_DBG_TRACE, + "brightness button event [%i -> %i (%i)]\n", + oldb, newb, fujitsu->brightness_changed); + - if (oldb == newb && fujitsu->brightness_changed) { - keycode = 0; - if (disable_brightness_keys != 1) { - if (oldb == 0) { - acpi_bus_generate_proc_event - (fujitsu->dev, - ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, - 0); - keycode = KEY_BRIGHTNESSDOWN; - } else if (oldb == - (fujitsu->max_brightness) - 1) { - acpi_bus_generate_proc_event - (fujitsu->dev, - ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, - 0); - keycode = KEY_BRIGHTNESSUP; - } - } - } else if (oldb < newb) { ++ if (oldb < newb) { + if (disable_brightness_adjust != 1) { + if (use_alt_lcd_levels) + set_lcd_level_alt(newb); + else + set_lcd_level(newb); + } - if (disable_brightness_keys != 1) { - acpi_bus_generate_proc_event(fujitsu->dev, - ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0); - keycode = KEY_BRIGHTNESSUP; - } ++ acpi_bus_generate_proc_event(fujitsu->dev, ++ ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0); ++ keycode = KEY_BRIGHTNESSUP; + } else if (oldb > newb) { + if (disable_brightness_adjust != 1) { + if (use_alt_lcd_levels) + set_lcd_level_alt(newb); + else + set_lcd_level(newb); + } - if (disable_brightness_keys != 1) { - acpi_bus_generate_proc_event(fujitsu->dev, - ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0); - keycode = KEY_BRIGHTNESSDOWN; - } - } else { - keycode = KEY_UNKNOWN; ++ acpi_bus_generate_proc_event(fujitsu->dev, ++ ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0); ++ keycode = KEY_BRIGHTNESSDOWN; + } + break; + default: + keycode = KEY_UNKNOWN; + vdbg_printk(FUJLAPTOP_DBG_WARN, + "unsupported event [0x%x]\n", event); + break; + } + + if (keycode != 0) { + input_report_key(input, keycode, 1); + input_sync(input); + input_report_key(input, keycode, 0); + input_sync(input); + } + + return; + } + + /* ACPI device for hotkey handling */ + + static int acpi_fujitsu_hotkey_add(struct acpi_device *device) + { + acpi_status status; + acpi_handle handle; + int result = 0; + int state = 0; + struct input_dev *input; + int error; + int i; + + if (!device) + return -EINVAL; + + fujitsu_hotkey->acpi_handle = device->handle; + sprintf(acpi_device_name(device), "%s", + ACPI_FUJITSU_HOTKEY_DEVICE_NAME); + sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); + device->driver_data = fujitsu_hotkey; + + status = acpi_install_notify_handler(device->handle, + ACPI_DEVICE_NOTIFY, + acpi_fujitsu_hotkey_notify, + fujitsu_hotkey); + + if (ACPI_FAILURE(status)) { + printk(KERN_ERR "Error installing notify handler\n"); + error = -ENODEV; + goto err_stop; + } + + /* kfifo */ + spin_lock_init(&fujitsu_hotkey->fifo_lock); + fujitsu_hotkey->fifo = + kfifo_alloc(RINGBUFFERSIZE * sizeof(int), GFP_KERNEL, + &fujitsu_hotkey->fifo_lock); + if (IS_ERR(fujitsu_hotkey->fifo)) { + printk(KERN_ERR "kfifo_alloc failed\n"); + error = PTR_ERR(fujitsu_hotkey->fifo); + goto err_stop; + } + + fujitsu_hotkey->input = input = input_allocate_device(); + if (!input) { + error = -ENOMEM; + goto err_uninstall_notify; + } + + snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys), + "%s/video/input0", acpi_device_hid(device)); + + input->name = acpi_device_name(device); + input->phys = fujitsu_hotkey->phys; + input->id.bustype = BUS_HOST; + input->id.product = 0x06; + input->dev.parent = &device->dev; - input->evbit[0] = BIT(EV_KEY); ++ ++ set_bit(EV_KEY, input->evbit); + set_bit(fujitsu->keycode1, input->keybit); + set_bit(fujitsu->keycode2, input->keybit); + set_bit(fujitsu->keycode3, input->keybit); + set_bit(fujitsu->keycode4, input->keybit); + set_bit(KEY_UNKNOWN, input->keybit); + + error = input_register_device(input); + if (error) + goto err_free_input_dev; + + result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state); + if (result) { + printk(KERN_ERR "Error reading power state\n"); + goto end; + } + + printk(KERN_INFO PREFIX "%s [%s] (%s)\n", + acpi_device_name(device), acpi_device_bid(device), + !device->power.state ? "on" : "off"); + + fujitsu_hotkey->dev = device; + + if (ACPI_SUCCESS + (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) { + vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); + if (ACPI_FAILURE + (acpi_evaluate_object + (device->handle, METHOD_NAME__INI, NULL, NULL))) + printk(KERN_ERR "_INI Method failed\n"); + } + - i = 0; /* Discard hotkey ringbuffer */ - while (get_irb() != 0 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) ; ++ i = 0; ++ while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0 ++ && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) ++ ; /* No action, result is discarded */ + vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i); + ++ fujitsu_hotkey->rfkill_state = ++ call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); ++ ++ /* Suspect this is a keymap of the application panel, print it */ ++ printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n", ++ call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0)); ++ ++ #ifdef CONFIG_LEDS_CLASS ++ if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) { ++ result = led_classdev_register(&fujitsu->pf_device->dev, ++ &logolamp_led); ++ if (result == 0) { ++ fujitsu_hotkey->logolamp_registered = 1; ++ } else { ++ printk(KERN_ERR "fujitsu-laptop: Could not register " ++ "LED handler for logo lamp, error %i\n", result); ++ } ++ } ++ ++ if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) && ++ (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) { ++ result = led_classdev_register(&fujitsu->pf_device->dev, ++ &kblamps_led); ++ if (result == 0) { ++ fujitsu_hotkey->kblamps_registered = 1; ++ } else { ++ printk(KERN_ERR "fujitsu-laptop: Could not register " ++ "LED handler for keyboard lamps, error %i\n", result); ++ } ++ } ++ #endif ++ + return result; + + end: + err_free_input_dev: + input_free_device(input); + err_uninstall_notify: + acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, + acpi_fujitsu_hotkey_notify); + kfifo_free(fujitsu_hotkey->fifo); + err_stop: + + return result; + } + + static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type) + { + acpi_status status; + struct fujitsu_hotkey_t *fujitsu_hotkey = NULL; + + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + fujitsu_hotkey = acpi_driver_data(device); + + status = acpi_remove_notify_handler(fujitsu_hotkey->acpi_handle, + ACPI_DEVICE_NOTIFY, + acpi_fujitsu_hotkey_notify); + + fujitsu_hotkey->acpi_handle = NULL; + + kfifo_free(fujitsu_hotkey->fifo); + + return 0; + } + + static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event, + void *data) + { + struct input_dev *input; + int keycode, keycode_r; + unsigned int irb = 1; + int i, status; + + input = fujitsu_hotkey->input; + - vdbg_printk(FUJLAPTOP_DBG_TRACE, "Hotkey event\n"); ++ fujitsu_hotkey->rfkill_state = ++ call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); + + switch (event) { + case ACPI_FUJITSU_NOTIFY_CODE1: + i = 0; - while ((irb = get_irb()) != 0 - && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) { - vdbg_printk(FUJLAPTOP_DBG_TRACE, "GIRB result [%x]\n", - irb); - ++ while ((irb = ++ call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0 ++ && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) { + switch (irb & 0x4ff) { + case KEY1_CODE: + keycode = fujitsu->keycode1; + break; + case KEY2_CODE: + keycode = fujitsu->keycode2; + break; + case KEY3_CODE: + keycode = fujitsu->keycode3; + break; + case KEY4_CODE: + keycode = fujitsu->keycode4; + break; + case 0: + keycode = 0; + break; + default: + vdbg_printk(FUJLAPTOP_DBG_WARN, + "Unknown GIRB result [%x]\n", irb); + keycode = -1; + break; + } + if (keycode > 0) { + vdbg_printk(FUJLAPTOP_DBG_TRACE, + "Push keycode into ringbuffer [%d]\n", + keycode); + status = kfifo_put(fujitsu_hotkey->fifo, + (unsigned char *)&keycode, + sizeof(keycode)); + if (status != sizeof(keycode)) { + vdbg_printk(FUJLAPTOP_DBG_WARN, + "Could not push keycode [0x%x]\n", + keycode); + } else { + input_report_key(input, keycode, 1); + input_sync(input); + } + } else if (keycode == 0) { + while ((status = + kfifo_get + (fujitsu_hotkey->fifo, (unsigned char *) + &keycode_r, + sizeof + (keycode_r))) == sizeof(keycode_r)) { + input_report_key(input, keycode_r, 0); + input_sync(input); + vdbg_printk(FUJLAPTOP_DBG_TRACE, + "Pop keycode from ringbuffer [%d]\n", + keycode_r); + } + } + } + + break; + default: + keycode = KEY_UNKNOWN; + vdbg_printk(FUJLAPTOP_DBG_WARN, + "Unsupported event [0x%x]\n", event); + input_report_key(input, keycode, 1); + input_sync(input); + input_report_key(input, keycode, 0); + input_sync(input); + break; + } + + return; + } + + /* Initialization */ + + static const struct acpi_device_id fujitsu_device_ids[] = { + {ACPI_FUJITSU_HID, 0}, + {"", 0}, + }; + + static struct acpi_driver acpi_fujitsu_driver = { + .name = ACPI_FUJITSU_DRIVER_NAME, + .class = ACPI_FUJITSU_CLASS, + .ids = fujitsu_device_ids, + .ops = { + .add = acpi_fujitsu_add, + .remove = acpi_fujitsu_remove, + }, + }; + + static const struct acpi_device_id fujitsu_hotkey_device_ids[] = { + {ACPI_FUJITSU_HOTKEY_HID, 0}, + {"", 0}, + }; + + static struct acpi_driver acpi_fujitsu_hotkey_driver = { + .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME, + .class = ACPI_FUJITSU_CLASS, + .ids = fujitsu_hotkey_device_ids, + .ops = { + .add = acpi_fujitsu_hotkey_add, + .remove = acpi_fujitsu_hotkey_remove, + }, + }; + + static int __init fujitsu_init(void) + { + int ret, result, max_brightness; + + if (acpi_disabled) + return -ENODEV; + + fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL); + if (!fujitsu) + return -ENOMEM; + memset(fujitsu, 0, sizeof(struct fujitsu_t)); + fujitsu->keycode1 = KEY_PROG1; + fujitsu->keycode2 = KEY_PROG2; + fujitsu->keycode3 = KEY_PROG3; + fujitsu->keycode4 = KEY_PROG4; + dmi_check_system(fujitsu_dmi_table); + + result = acpi_bus_register_driver(&acpi_fujitsu_driver); + if (result < 0) { + ret = -ENODEV; + goto fail_acpi; + } + + /* Register platform stuff */ + + fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1); + if (!fujitsu->pf_device) { + ret = -ENOMEM; + goto fail_platform_driver; + } + + ret = platform_device_add(fujitsu->pf_device); + if (ret) + goto fail_platform_device1; + + ret = + sysfs_create_group(&fujitsu->pf_device->dev.kobj, + &fujitsupf_attribute_group); + if (ret) + goto fail_platform_device2; + + /* Register backlight stuff */ + + if (!acpi_video_backlight_support()) { + fujitsu->bl_device = + backlight_device_register("fujitsu-laptop", NULL, NULL, + &fujitsubl_ops); + if (IS_ERR(fujitsu->bl_device)) + return PTR_ERR(fujitsu->bl_device); + max_brightness = fujitsu->max_brightness; + fujitsu->bl_device->props.max_brightness = max_brightness - 1; + fujitsu->bl_device->props.brightness = fujitsu->brightness_level; + } + + ret = platform_driver_register(&fujitsupf_driver); + if (ret) + goto fail_backlight; + + /* Register hotkey driver */ + + fujitsu_hotkey = kmalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL); + if (!fujitsu_hotkey) { + ret = -ENOMEM; + goto fail_hotkey; + } + memset(fujitsu_hotkey, 0, sizeof(struct fujitsu_hotkey_t)); + + result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver); + if (result < 0) { + ret = -ENODEV; + goto fail_hotkey1; + } + ++ /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */ ++ ++ if (!acpi_video_backlight_support()) { ++ if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3) ++ fujitsu->bl_device->props.power = 4; ++ else ++ fujitsu->bl_device->props.power = 0; ++ } ++ + printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION + " successfully loaded.\n"); + + return 0; + + fail_hotkey1: + + kfree(fujitsu_hotkey); + + fail_hotkey: + + platform_driver_unregister(&fujitsupf_driver); + + fail_backlight: + + if (fujitsu->bl_device) + backlight_device_unregister(fujitsu->bl_device); + + fail_platform_device2: + + platform_device_del(fujitsu->pf_device); + + fail_platform_device1: + + platform_device_put(fujitsu->pf_device); + + fail_platform_driver: + + acpi_bus_unregister_driver(&acpi_fujitsu_driver); + + fail_acpi: + + kfree(fujitsu); + + return ret; + } + + static void __exit fujitsu_cleanup(void) + { ++ #ifdef CONFIG_LEDS_CLASS ++ if (fujitsu_hotkey->logolamp_registered != 0) ++ led_classdev_unregister(&logolamp_led); ++ ++ if (fujitsu_hotkey->kblamps_registered != 0) ++ led_classdev_unregister(&kblamps_led); ++ #endif ++ + sysfs_remove_group(&fujitsu->pf_device->dev.kobj, + &fujitsupf_attribute_group); + platform_device_unregister(fujitsu->pf_device); + platform_driver_unregister(&fujitsupf_driver); + if (fujitsu->bl_device) + backlight_device_unregister(fujitsu->bl_device); + + acpi_bus_unregister_driver(&acpi_fujitsu_driver); + + kfree(fujitsu); + + acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver); + + kfree(fujitsu_hotkey); + + printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n"); + } + + module_init(fujitsu_init); + module_exit(fujitsu_cleanup); + + module_param(use_alt_lcd_levels, uint, 0644); + MODULE_PARM_DESC(use_alt_lcd_levels, + "Use alternative interface for lcd_levels (needed for Lifebook s6410)."); -module_param(disable_brightness_keys, uint, 0644); -MODULE_PARM_DESC(disable_brightness_keys, - "Disable brightness keys (eg. if they are already handled by the generic ACPI_VIDEO device)."); + module_param(disable_brightness_adjust, uint, 0644); + MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment ."); + #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG + module_param_named(debug, dbg_level, uint, 0644); + MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); + #endif + -MODULE_AUTHOR("Jonathan Woithe, Peter Gruber"); ++MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon"); + MODULE_DESCRIPTION("Fujitsu laptop extras support"); + MODULE_VERSION(FUJITSU_DRIVER_VERSION); + MODULE_LICENSE("GPL"); + + MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*"); ++MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*"); + MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*"); + + static struct pnp_device_id pnp_ids[] = { + {.id = "FUJ02bf"}, + {.id = "FUJ02B1"}, + {.id = "FUJ02E3"}, + {.id = ""} + }; + + MODULE_DEVICE_TABLE(pnp, pnp_ids); diff --cc drivers/platform/x86/panasonic-laptop.c index 000000000000,4a1bc64485d5..f30db367c82e mode 000000,100644..100644 --- a/drivers/platform/x86/panasonic-laptop.c +++ b/drivers/platform/x86/panasonic-laptop.c @@@ -1,0 -1,766 +1,744 @@@ + /* + * Panasonic HotKey and LCD brightness control driver + * (C) 2004 Hiroshi Miura + * (C) 2004 NTT DATA Intellilink Co. http://www.intellilink.co.jp/ + * (C) YOKOTA Hiroshi + * (C) 2004 David Bronaugh + * (C) 2006-2008 Harald Welte + * + * derived from toshiba_acpi.c, Copyright (C) 2002-2004 John Belmonte + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * publicshed by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + *--------------------------------------------------------------------------- + * + * ChangeLog: + * Sep.23, 2008 Harald Welte + * -v0.95 rename driver from drivers/acpi/pcc_acpi.c to + * drivers/misc/panasonic-laptop.c + * + * Jul.04, 2008 Harald Welte + * -v0.94 replace /proc interface with device attributes + * support {set,get}keycode on th input device + * + * Jun.27, 2008 Harald Welte + * -v0.92 merge with 2.6.26-rc6 input API changes + * remove broken <= 2.6.15 kernel support + * resolve all compiler warnings + * various coding style fixes (checkpatch.pl) + * add support for backlight api + * major code restructuring + * + * Dac.28, 2007 Harald Welte + * -v0.91 merge with 2.6.24-rc6 ACPI changes + * + * Nov.04, 2006 Hiroshi Miura + * -v0.9 remove warning about section reference. + * remove acpi_os_free + * add /proc/acpi/pcc/brightness interface for HAL access + * merge dbronaugh's enhancement + * Aug.17, 2004 David Bronaugh (dbronaugh) + * - Added screen brightness setting interface + * Thanks to FreeBSD crew (acpi_panasonic.c) + * for the ideas I needed to accomplish it + * + * May.29, 2006 Hiroshi Miura + * -v0.8.4 follow to change keyinput structure + * thanks Fabian Yamaguchi , + * Jacob Bower and + * Hiroshi Yokota for providing solutions. + * + * Oct.02, 2004 Hiroshi Miura + * -v0.8.2 merge code of YOKOTA Hiroshi + * . + * Add sticky key mode interface. + * Refactoring acpi_pcc_generate_keyinput(). + * + * Sep.15, 2004 Hiroshi Miura + * -v0.8 Generate key input event on input subsystem. + * This is based on yet another driver written by + * Ryuta Nakanishi. + * + * Sep.10, 2004 Hiroshi Miura + * -v0.7 Change proc interface functions using seq_file + * facility as same as other ACPI drivers. + * + * Aug.28, 2004 Hiroshi Miura + * -v0.6.4 Fix a silly error with status checking + * + * Aug.25, 2004 Hiroshi Miura + * -v0.6.3 replace read_acpi_int by standard function + * acpi_evaluate_integer + * some clean up and make smart copyright notice. + * fix return value of pcc_acpi_get_key() + * fix checking return value of acpi_bus_register_driver() + * + * Aug.22, 2004 David Bronaugh + * -v0.6.2 Add check on ACPI data (num_sifr) + * Coding style cleanups, better error messages/handling + * Fixed an off-by-one error in memory allocation + * + * Aug.21, 2004 David Bronaugh + * -v0.6.1 Fix a silly error with status checking + * + * Aug.20, 2004 David Bronaugh + * - v0.6 Correct brightness controls to reflect reality + * based on information gleaned by Hiroshi Miura + * and discussions with Hiroshi Miura + * + * Aug.10, 2004 Hiroshi Miura + * - v0.5 support LCD brightness control + * based on the disclosed information by MEI. + * + * Jul.25, 2004 Hiroshi Miura + * - v0.4 first post version + * add function to retrive SIFR + * + * Jul.24, 2004 Hiroshi Miura + * - v0.3 get proper status of hotkey + * + * Jul.22, 2004 Hiroshi Miura + * - v0.2 add HotKey handler + * + * Jul.17, 2004 Hiroshi Miura + * - v0.1 start from toshiba_acpi driver written by John Belmonte + * + */ + + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + + + #ifndef ACPI_HOTKEY_COMPONENT + #define ACPI_HOTKEY_COMPONENT 0x10000000 + #endif + + #define _COMPONENT ACPI_HOTKEY_COMPONENT + + MODULE_AUTHOR("Hiroshi Miura, David Bronaugh and Harald Welte"); + MODULE_DESCRIPTION("ACPI HotKey driver for Panasonic Let's Note laptops"); + MODULE_LICENSE("GPL"); + + #define LOGPREFIX "pcc_acpi: " + + /* Define ACPI PATHs */ + /* Lets note hotkeys */ + #define METHOD_HKEY_QUERY "HINF" + #define METHOD_HKEY_SQTY "SQTY" + #define METHOD_HKEY_SINF "SINF" + #define METHOD_HKEY_SSET "SSET" + #define HKEY_NOTIFY 0x80 + + #define ACPI_PCC_DRIVER_NAME "Panasonic Laptop Support" + #define ACPI_PCC_DEVICE_NAME "Hotkey" + #define ACPI_PCC_CLASS "pcc" + + #define ACPI_PCC_INPUT_PHYS "panasonic/hkey0" + + /* LCD_TYPEs: 0 = Normal, 1 = Semi-transparent + ENV_STATEs: Normal temp=0x01, High temp=0x81, N/A=0x00 + */ + enum SINF_BITS { SINF_NUM_BATTERIES = 0, + SINF_LCD_TYPE, + SINF_AC_MAX_BRIGHT, + SINF_AC_MIN_BRIGHT, + SINF_AC_CUR_BRIGHT, + SINF_DC_MAX_BRIGHT, + SINF_DC_MIN_BRIGHT, + SINF_DC_CUR_BRIGHT, + SINF_MUTE, + SINF_RESERVED, + SINF_ENV_STATE, + SINF_STICKY_KEY = 0x80, + }; + /* R1 handles SINF_AC_CUR_BRIGHT as SINF_CUR_BRIGHT, doesn't know AC state */ + + static int acpi_pcc_hotkey_add(struct acpi_device *device); + static int acpi_pcc_hotkey_remove(struct acpi_device *device, int type); + static int acpi_pcc_hotkey_resume(struct acpi_device *device); + + static const struct acpi_device_id pcc_device_ids[] = { + { "MAT0012", 0}, + { "MAT0013", 0}, + { "MAT0018", 0}, + { "MAT0019", 0}, + { "", 0}, + }; + + static struct acpi_driver acpi_pcc_driver = { + .name = ACPI_PCC_DRIVER_NAME, + .class = ACPI_PCC_CLASS, + .ids = pcc_device_ids, + .ops = { + .add = acpi_pcc_hotkey_add, + .remove = acpi_pcc_hotkey_remove, + .resume = acpi_pcc_hotkey_resume, + }, + }; + + #define KEYMAP_SIZE 11 + static const int initial_keymap[KEYMAP_SIZE] = { + /* 0 */ KEY_RESERVED, + /* 1 */ KEY_BRIGHTNESSDOWN, + /* 2 */ KEY_BRIGHTNESSUP, + /* 3 */ KEY_DISPLAYTOGGLE, + /* 4 */ KEY_MUTE, + /* 5 */ KEY_VOLUMEDOWN, + /* 6 */ KEY_VOLUMEUP, + /* 7 */ KEY_SLEEP, + /* 8 */ KEY_PROG1, /* Change CPU boost */ + /* 9 */ KEY_BATTERY, + /* 10 */ KEY_SUSPEND, + }; + + struct pcc_acpi { + acpi_handle handle; + unsigned long num_sifr; + int sticky_mode; + u32 *sinf; + struct acpi_device *device; + struct input_dev *input_dev; + struct backlight_device *backlight; + int keymap[KEYMAP_SIZE]; + }; + + struct pcc_keyinput { + struct acpi_hotkey *hotkey; + }; + + /* method access functions */ + static int acpi_pcc_write_sset(struct pcc_acpi *pcc, int func, int val) + { + union acpi_object in_objs[] = { + { .integer.type = ACPI_TYPE_INTEGER, + .integer.value = func, }, + { .integer.type = ACPI_TYPE_INTEGER, + .integer.value = val, }, + }; + struct acpi_object_list params = { + .count = ARRAY_SIZE(in_objs), + .pointer = in_objs, + }; + acpi_status status = AE_OK; + - ACPI_FUNCTION_TRACE("acpi_pcc_write_sset"); - + status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SSET, + ¶ms, NULL); + + return status == AE_OK; + } + + static inline int acpi_pcc_get_sqty(struct acpi_device *device) + { + unsigned long long s; + acpi_status status; + - ACPI_FUNCTION_TRACE("acpi_pcc_get_sqty"); - + status = acpi_evaluate_integer(device->handle, METHOD_HKEY_SQTY, + NULL, &s); + if (ACPI_SUCCESS(status)) + return s; + else { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "evaluation error HKEY.SQTY\n")); + return -EINVAL; + } + } + + static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc, u32 *sinf) + { + acpi_status status; + struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; + union acpi_object *hkey = NULL; + int i; + - ACPI_FUNCTION_TRACE("acpi_pcc_retrieve_biosdata"); - + status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SINF, 0, + &buffer); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "evaluation error HKEY.SINF\n")); + return 0; + } + + hkey = buffer.pointer; + if (!hkey || (hkey->type != ACPI_TYPE_PACKAGE)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid HKEY.SINF\n")); + goto end; + } + + if (pcc->num_sifr < hkey->package.count) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "SQTY reports bad SINF length\n")); + status = AE_ERROR; + goto end; + } + + for (i = 0; i < hkey->package.count; i++) { + union acpi_object *element = &(hkey->package.elements[i]); + if (likely(element->type == ACPI_TYPE_INTEGER)) { + sinf[i] = element->integer.value; + } else + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Invalid HKEY.SINF data\n")); + } + sinf[hkey->package.count] = -1; + + end: + kfree(buffer.pointer); + return status == AE_OK; + } + + /* backlight API interface functions */ + + /* This driver currently treats AC and DC brightness identical, + * since we don't need to invent an interface to the core ACPI + * logic to receive events in case a power supply is plugged in + * or removed */ + + static int bl_get(struct backlight_device *bd) + { + struct pcc_acpi *pcc = bl_get_data(bd); + + if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) + return -EIO; + + return pcc->sinf[SINF_AC_CUR_BRIGHT]; + } + + static int bl_set_status(struct backlight_device *bd) + { + struct pcc_acpi *pcc = bl_get_data(bd); + int bright = bd->props.brightness; + int rc; + + if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) + return -EIO; + + if (bright < pcc->sinf[SINF_AC_MIN_BRIGHT]) + bright = pcc->sinf[SINF_AC_MIN_BRIGHT]; + + if (bright < pcc->sinf[SINF_DC_MIN_BRIGHT]) + bright = pcc->sinf[SINF_DC_MIN_BRIGHT]; + + if (bright < pcc->sinf[SINF_AC_MIN_BRIGHT] || + bright > pcc->sinf[SINF_AC_MAX_BRIGHT]) + return -EINVAL; + + rc = acpi_pcc_write_sset(pcc, SINF_AC_CUR_BRIGHT, bright); + if (rc < 0) + return rc; + + return acpi_pcc_write_sset(pcc, SINF_DC_CUR_BRIGHT, bright); + } + + static struct backlight_ops pcc_backlight_ops = { + .get_brightness = bl_get, + .update_status = bl_set_status, + }; + + + /* sysfs user interface functions */ + + static ssize_t show_numbatt(struct device *dev, struct device_attribute *attr, + char *buf) + { + struct acpi_device *acpi = to_acpi_device(dev); + struct pcc_acpi *pcc = acpi_driver_data(acpi); + + if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) + return -EIO; + + return sprintf(buf, "%u\n", pcc->sinf[SINF_NUM_BATTERIES]); + } + + static ssize_t show_lcdtype(struct device *dev, struct device_attribute *attr, + char *buf) + { + struct acpi_device *acpi = to_acpi_device(dev); + struct pcc_acpi *pcc = acpi_driver_data(acpi); + + if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) + return -EIO; + + return sprintf(buf, "%u\n", pcc->sinf[SINF_LCD_TYPE]); + } + + static ssize_t show_mute(struct device *dev, struct device_attribute *attr, + char *buf) + { + struct acpi_device *acpi = to_acpi_device(dev); + struct pcc_acpi *pcc = acpi_driver_data(acpi); + + if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) + return -EIO; + + return sprintf(buf, "%u\n", pcc->sinf[SINF_MUTE]); + } + + static ssize_t show_sticky(struct device *dev, struct device_attribute *attr, + char *buf) + { + struct acpi_device *acpi = to_acpi_device(dev); + struct pcc_acpi *pcc = acpi_driver_data(acpi); + + if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) + return -EIO; + + return sprintf(buf, "%u\n", pcc->sinf[SINF_STICKY_KEY]); + } + + static ssize_t set_sticky(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) + { + struct acpi_device *acpi = to_acpi_device(dev); + struct pcc_acpi *pcc = acpi_driver_data(acpi); + int val; + + if (count && sscanf(buf, "%i", &val) == 1 && + (val == 0 || val == 1)) { + acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, val); + pcc->sticky_mode = val; + } + + return count; + } + + static DEVICE_ATTR(numbatt, S_IRUGO, show_numbatt, NULL); + static DEVICE_ATTR(lcdtype, S_IRUGO, show_lcdtype, NULL); + static DEVICE_ATTR(mute, S_IRUGO, show_mute, NULL); + static DEVICE_ATTR(sticky_key, S_IRUGO | S_IWUSR, show_sticky, set_sticky); + + static struct attribute *pcc_sysfs_entries[] = { + &dev_attr_numbatt.attr, + &dev_attr_lcdtype.attr, + &dev_attr_mute.attr, + &dev_attr_sticky_key.attr, + NULL, + }; + + static struct attribute_group pcc_attr_group = { + .name = NULL, /* put in device directory */ + .attrs = pcc_sysfs_entries, + }; + + + /* hotkey input device driver */ + + static int pcc_getkeycode(struct input_dev *dev, int scancode, int *keycode) + { + struct pcc_acpi *pcc = input_get_drvdata(dev); + + if (scancode >= ARRAY_SIZE(pcc->keymap)) + return -EINVAL; + + *keycode = pcc->keymap[scancode]; + + return 0; + } + + static int keymap_get_by_keycode(struct pcc_acpi *pcc, int keycode) + { + int i; + + for (i = 0; i < ARRAY_SIZE(pcc->keymap); i++) { + if (pcc->keymap[i] == keycode) + return i+1; + } + + return 0; + } + + static int pcc_setkeycode(struct input_dev *dev, int scancode, int keycode) + { + struct pcc_acpi *pcc = input_get_drvdata(dev); + int oldkeycode; + + if (scancode >= ARRAY_SIZE(pcc->keymap)) + return -EINVAL; + + if (keycode < 0 || keycode > KEY_MAX) + return -EINVAL; + + oldkeycode = pcc->keymap[scancode]; + pcc->keymap[scancode] = keycode; + + set_bit(keycode, dev->keybit); + + if (!keymap_get_by_keycode(pcc, oldkeycode)) + clear_bit(oldkeycode, dev->keybit); + + return 0; + } + + static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc) + { + struct input_dev *hotk_input_dev = pcc->input_dev; + int rc; + int key_code, hkey_num; + unsigned long long result; + - ACPI_FUNCTION_TRACE("acpi_pcc_generate_keyinput"); - + rc = acpi_evaluate_integer(pcc->handle, METHOD_HKEY_QUERY, + NULL, &result); + if (!ACPI_SUCCESS(rc)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "error getting hotkey status\n")); + return; + } + + acpi_bus_generate_proc_event(pcc->device, HKEY_NOTIFY, result); + + hkey_num = result & 0xf; + + if (hkey_num < 0 || hkey_num > ARRAY_SIZE(pcc->keymap)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "hotkey number out of range: %d\n", + hkey_num)); + return; + } + + key_code = pcc->keymap[hkey_num]; + + if (key_code != KEY_RESERVED) { + int pushed = (result & 0x80) ? TRUE : FALSE; + + input_report_key(hotk_input_dev, key_code, pushed); + input_sync(hotk_input_dev); + } + + return; + } + + static void acpi_pcc_hotkey_notify(acpi_handle handle, u32 event, void *data) + { + struct pcc_acpi *pcc = (struct pcc_acpi *) data; + - ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_notify"); - + switch (event) { + case HKEY_NOTIFY: + acpi_pcc_generate_keyinput(pcc); + break; + default: + /* nothing to do */ + break; + } + } + + static int acpi_pcc_init_input(struct pcc_acpi *pcc) + { + int i, rc; + - ACPI_FUNCTION_TRACE("acpi_pcc_init_input"); - + pcc->input_dev = input_allocate_device(); + if (!pcc->input_dev) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Couldn't allocate input device for hotkey")); + return -ENOMEM; + } + + pcc->input_dev->evbit[0] = BIT(EV_KEY); + + pcc->input_dev->name = ACPI_PCC_DRIVER_NAME; + pcc->input_dev->phys = ACPI_PCC_INPUT_PHYS; + pcc->input_dev->id.bustype = BUS_HOST; + pcc->input_dev->id.vendor = 0x0001; + pcc->input_dev->id.product = 0x0001; + pcc->input_dev->id.version = 0x0100; + pcc->input_dev->getkeycode = pcc_getkeycode; + pcc->input_dev->setkeycode = pcc_setkeycode; + + /* load initial keymap */ + memcpy(pcc->keymap, initial_keymap, sizeof(pcc->keymap)); + + for (i = 0; i < ARRAY_SIZE(pcc->keymap); i++) + __set_bit(pcc->keymap[i], pcc->input_dev->keybit); + __clear_bit(KEY_RESERVED, pcc->input_dev->keybit); + + input_set_drvdata(pcc->input_dev, pcc); + + rc = input_register_device(pcc->input_dev); + if (rc < 0) + input_free_device(pcc->input_dev); + + return rc; + } + + /* kernel module interface */ + + static int acpi_pcc_hotkey_resume(struct acpi_device *device) + { + struct pcc_acpi *pcc = acpi_driver_data(device); + acpi_status status = AE_OK; + - ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_resume"); - + if (device == NULL || pcc == NULL) + return -EINVAL; + + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Sticky mode restore: %d\n", + pcc->sticky_mode)); + + status = acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, pcc->sticky_mode); + + return status == AE_OK ? 0 : -EINVAL; + } + + static int acpi_pcc_hotkey_add(struct acpi_device *device) + { + acpi_status status; + struct pcc_acpi *pcc; + int num_sifr, result; + - ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_add"); - + if (!device) + return -EINVAL; + + num_sifr = acpi_pcc_get_sqty(device); + + if (num_sifr > 255) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr too large")); + return -ENODEV; + } + + pcc = kzalloc(sizeof(struct pcc_acpi), GFP_KERNEL); + if (!pcc) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Couldn't allocate mem for pcc")); + return -ENOMEM; + } + + pcc->sinf = kzalloc(sizeof(u32) * (num_sifr + 1), GFP_KERNEL); + if (!pcc->sinf) { + result = -ENOMEM; + goto out_hotkey; + } + + pcc->device = device; + pcc->handle = device->handle; + pcc->num_sifr = num_sifr; + device->driver_data = pcc; + strcpy(acpi_device_name(device), ACPI_PCC_DEVICE_NAME); + strcpy(acpi_device_class(device), ACPI_PCC_CLASS); + + result = acpi_pcc_init_input(pcc); + if (result) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error installing keyinput handler\n")); + goto out_sinf; + } + + /* initialize hotkey input device */ + status = acpi_install_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY, + acpi_pcc_hotkey_notify, pcc); + + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error installing notify handler\n")); + result = -ENODEV; + goto out_input; + } + + /* initialize backlight */ + pcc->backlight = backlight_device_register("panasonic", NULL, pcc, + &pcc_backlight_ops); + if (IS_ERR(pcc->backlight)) + goto out_notify; + + if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Couldn't retrieve BIOS data\n")); + goto out_backlight; + } + + /* read the initial brightness setting from the hardware */ + pcc->backlight->props.max_brightness = + pcc->sinf[SINF_AC_MAX_BRIGHT]; + pcc->backlight->props.brightness = pcc->sinf[SINF_AC_CUR_BRIGHT]; + + /* read the initial sticky key mode from the hardware */ + pcc->sticky_mode = pcc->sinf[SINF_STICKY_KEY]; + + /* add sysfs attributes */ + result = sysfs_create_group(&device->dev.kobj, &pcc_attr_group); + if (result) + goto out_backlight; + + return 0; + + out_backlight: + backlight_device_unregister(pcc->backlight); + out_notify: + acpi_remove_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY, + acpi_pcc_hotkey_notify); + out_input: + input_unregister_device(pcc->input_dev); + /* no need to input_free_device() since core input API refcount and + * free()s the device */ + out_sinf: + kfree(pcc->sinf); + out_hotkey: + kfree(pcc); + + return result; + } + + static int __init acpi_pcc_init(void) + { + int result = 0; + - ACPI_FUNCTION_TRACE("acpi_pcc_init"); - + if (acpi_disabled) + return -ENODEV; + + result = acpi_bus_register_driver(&acpi_pcc_driver); + if (result < 0) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error registering hotkey driver\n")); + return -ENODEV; + } + + return 0; + } + + static int acpi_pcc_hotkey_remove(struct acpi_device *device, int type) + { + struct pcc_acpi *pcc = acpi_driver_data(device); + - ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_remove"); - + if (!device || !pcc) + return -EINVAL; + + sysfs_remove_group(&device->dev.kobj, &pcc_attr_group); + + backlight_device_unregister(pcc->backlight); + + acpi_remove_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY, + acpi_pcc_hotkey_notify); + + input_unregister_device(pcc->input_dev); + /* no need to input_free_device() since core input API refcount and + * free()s the device */ + + kfree(pcc->sinf); + kfree(pcc); + + return 0; + } + + static void __exit acpi_pcc_exit(void) + { - ACPI_FUNCTION_TRACE("acpi_pcc_exit"); - + acpi_bus_unregister_driver(&acpi_pcc_driver); + } + + module_init(acpi_pcc_init); + module_exit(acpi_pcc_exit); diff --cc drivers/platform/x86/sony-laptop.c index 000000000000,571b211608d1..537959d07148 mode 000000,100644..100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@@ -1,0 -1,2781 +1,2784 @@@ + /* + * ACPI Sony Notebook Control Driver (SNC and SPIC) + * + * Copyright (C) 2004-2005 Stelian Pop + * Copyright (C) 2007 Mattia Dongili + * + * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c + * which are copyrighted by their respective authors. + * + * The SNY6001 driver part is based on the sonypi driver which includes + * material from: + * + * Copyright (C) 2001-2005 Stelian Pop + * + * Copyright (C) 2005 Narayanan R S + * + * Copyright (C) 2001-2002 Alcôve + * + * Copyright (C) 2001 Michael Ashley + * + * Copyright (C) 2001 Junichi Morita + * + * Copyright (C) 2000 Takaya Kinjo + * + * Copyright (C) 2000 Andrew Tridgell + * + * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #ifdef CONFIG_SONYPI_COMPAT + #include + #include + #endif + + #define DRV_PFX "sony-laptop: " + #define dprintk(msg...) do { \ + if (debug) printk(KERN_WARNING DRV_PFX msg); \ + } while (0) + + #define SONY_LAPTOP_DRIVER_VERSION "0.6" + + #define SONY_NC_CLASS "sony-nc" + #define SONY_NC_HID "SNY5001" + #define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver" + + #define SONY_PIC_CLASS "sony-pic" + #define SONY_PIC_HID "SNY6001" + #define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver" + + MODULE_AUTHOR("Stelian Pop, Mattia Dongili"); + MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)"); + MODULE_LICENSE("GPL"); + MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION); + + static int debug; + module_param(debug, int, 0); + MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help " + "the development of this driver"); + + static int no_spic; /* = 0 */ + module_param(no_spic, int, 0444); + MODULE_PARM_DESC(no_spic, + "set this if you don't want to enable the SPIC device"); + + static int compat; /* = 0 */ + module_param(compat, int, 0444); + MODULE_PARM_DESC(compat, + "set this if you want to enable backward compatibility mode"); + + static unsigned long mask = 0xffffffff; + module_param(mask, ulong, 0644); + MODULE_PARM_DESC(mask, + "set this to the mask of event you want to enable (see doc)"); + + static int camera; /* = 0 */ + module_param(camera, int, 0444); + MODULE_PARM_DESC(camera, + "set this to 1 to enable Motion Eye camera controls " + "(only use it if you have a C1VE or C1VN model)"); + + #ifdef CONFIG_SONYPI_COMPAT + static int minor = -1; + module_param(minor, int, 0); + MODULE_PARM_DESC(minor, + "minor number of the misc device for the SPIC compatibility code, " + "default is -1 (automatic)"); + #endif + + /*********** Input Devices ***********/ + + #define SONY_LAPTOP_BUF_SIZE 128 + struct sony_laptop_input_s { + atomic_t users; + struct input_dev *jog_dev; + struct input_dev *key_dev; + struct kfifo *fifo; + spinlock_t fifo_lock; + struct workqueue_struct *wq; + }; + static struct sony_laptop_input_s sony_laptop_input = { + .users = ATOMIC_INIT(0), + }; + + struct sony_laptop_keypress { + struct input_dev *dev; + int key; + }; + + /* Correspondance table between sonypi events + * and input layer indexes in the keymap + */ + static int sony_laptop_input_index[] = { + -1, /* 0 no event */ + -1, /* 1 SONYPI_EVENT_JOGDIAL_DOWN */ + -1, /* 2 SONYPI_EVENT_JOGDIAL_UP */ + -1, /* 3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */ + -1, /* 4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */ + -1, /* 5 SONYPI_EVENT_JOGDIAL_PRESSED */ + -1, /* 6 SONYPI_EVENT_JOGDIAL_RELEASED */ + 0, /* 7 SONYPI_EVENT_CAPTURE_PRESSED */ + 1, /* 8 SONYPI_EVENT_CAPTURE_RELEASED */ + 2, /* 9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */ + 3, /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */ + 4, /* 11 SONYPI_EVENT_FNKEY_ESC */ + 5, /* 12 SONYPI_EVENT_FNKEY_F1 */ + 6, /* 13 SONYPI_EVENT_FNKEY_F2 */ + 7, /* 14 SONYPI_EVENT_FNKEY_F3 */ + 8, /* 15 SONYPI_EVENT_FNKEY_F4 */ + 9, /* 16 SONYPI_EVENT_FNKEY_F5 */ + 10, /* 17 SONYPI_EVENT_FNKEY_F6 */ + 11, /* 18 SONYPI_EVENT_FNKEY_F7 */ + 12, /* 19 SONYPI_EVENT_FNKEY_F8 */ + 13, /* 20 SONYPI_EVENT_FNKEY_F9 */ + 14, /* 21 SONYPI_EVENT_FNKEY_F10 */ + 15, /* 22 SONYPI_EVENT_FNKEY_F11 */ + 16, /* 23 SONYPI_EVENT_FNKEY_F12 */ + 17, /* 24 SONYPI_EVENT_FNKEY_1 */ + 18, /* 25 SONYPI_EVENT_FNKEY_2 */ + 19, /* 26 SONYPI_EVENT_FNKEY_D */ + 20, /* 27 SONYPI_EVENT_FNKEY_E */ + 21, /* 28 SONYPI_EVENT_FNKEY_F */ + 22, /* 29 SONYPI_EVENT_FNKEY_S */ + 23, /* 30 SONYPI_EVENT_FNKEY_B */ + 24, /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */ + 25, /* 32 SONYPI_EVENT_PKEY_P1 */ + 26, /* 33 SONYPI_EVENT_PKEY_P2 */ + 27, /* 34 SONYPI_EVENT_PKEY_P3 */ + 28, /* 35 SONYPI_EVENT_BACK_PRESSED */ + -1, /* 36 SONYPI_EVENT_LID_CLOSED */ + -1, /* 37 SONYPI_EVENT_LID_OPENED */ + 29, /* 38 SONYPI_EVENT_BLUETOOTH_ON */ + 30, /* 39 SONYPI_EVENT_BLUETOOTH_OFF */ + 31, /* 40 SONYPI_EVENT_HELP_PRESSED */ + 32, /* 41 SONYPI_EVENT_FNKEY_ONLY */ + 33, /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */ + 34, /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */ + 35, /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */ + 36, /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */ + 37, /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */ + 38, /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */ + 39, /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */ + 40, /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */ + 41, /* 50 SONYPI_EVENT_ZOOM_PRESSED */ + 42, /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */ + 43, /* 52 SONYPI_EVENT_MEYE_FACE */ + 44, /* 53 SONYPI_EVENT_MEYE_OPPOSITE */ + 45, /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */ + 46, /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */ + -1, /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */ + -1, /* 57 SONYPI_EVENT_BATTERY_INSERT */ + -1, /* 58 SONYPI_EVENT_BATTERY_REMOVE */ + -1, /* 59 SONYPI_EVENT_FNKEY_RELEASED */ + 47, /* 60 SONYPI_EVENT_WIRELESS_ON */ + 48, /* 61 SONYPI_EVENT_WIRELESS_OFF */ + 49, /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */ + 50, /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */ + }; + + static int sony_laptop_input_keycode_map[] = { + KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */ + KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */ + KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */ + KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */ + KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */ + KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */ + KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */ + KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */ + KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */ + KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */ + KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */ + KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */ + KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */ + KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */ + KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */ + KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */ + KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */ + KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */ + KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */ + KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */ + KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */ + KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */ + KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */ + KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */ + KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */ + KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */ + KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */ + KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */ + KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */ + KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */ + KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */ + KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */ + KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */ + KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */ + KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */ + KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */ + KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */ + KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */ + KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */ + KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */ + KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */ + KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */ + BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */ + KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */ + KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */ + KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */ + KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */ + KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */ + KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */ + KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */ + KEY_ZOOMOUT /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */ + }; + + /* release buttons after a short delay if pressed */ + static void do_sony_laptop_release_key(struct work_struct *work) + { + struct sony_laptop_keypress kp; + + while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp, + sizeof(kp)) == sizeof(kp)) { + msleep(10); + input_report_key(kp.dev, kp.key, 0); + input_sync(kp.dev); + } + } + static DECLARE_WORK(sony_laptop_release_key_work, + do_sony_laptop_release_key); + + /* forward event to the input subsystem */ + static void sony_laptop_report_input_event(u8 event) + { + struct input_dev *jog_dev = sony_laptop_input.jog_dev; + struct input_dev *key_dev = sony_laptop_input.key_dev; + struct sony_laptop_keypress kp = { NULL }; + + if (event == SONYPI_EVENT_FNKEY_RELEASED) { + /* Nothing, not all VAIOs generate this event */ + return; + } + + /* report events */ + switch (event) { + /* jog_dev events */ + case SONYPI_EVENT_JOGDIAL_UP: + case SONYPI_EVENT_JOGDIAL_UP_PRESSED: + input_report_rel(jog_dev, REL_WHEEL, 1); + input_sync(jog_dev); + return; + + case SONYPI_EVENT_JOGDIAL_DOWN: + case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED: + input_report_rel(jog_dev, REL_WHEEL, -1); + input_sync(jog_dev); + return; + + /* key_dev events */ + case SONYPI_EVENT_JOGDIAL_PRESSED: + kp.key = BTN_MIDDLE; + kp.dev = jog_dev; + break; + + default: + if (event >= ARRAY_SIZE(sony_laptop_input_index)) { + dprintk("sony_laptop_report_input_event, event not known: %d\n", event); + break; + } + if (sony_laptop_input_index[event] != -1) { + kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]]; + if (kp.key != KEY_UNKNOWN) + kp.dev = key_dev; + } + break; + } + + if (kp.dev) { + input_report_key(kp.dev, kp.key, 1); + /* we emit the scancode so we can always remap the key */ + input_event(kp.dev, EV_MSC, MSC_SCAN, event); + input_sync(kp.dev); + kfifo_put(sony_laptop_input.fifo, + (unsigned char *)&kp, sizeof(kp)); + + if (!work_pending(&sony_laptop_release_key_work)) + queue_work(sony_laptop_input.wq, + &sony_laptop_release_key_work); + } else + dprintk("unknown input event %.2x\n", event); + } + + static int sony_laptop_setup_input(struct acpi_device *acpi_device) + { + struct input_dev *jog_dev; + struct input_dev *key_dev; + int i; + int error; + + /* don't run again if already initialized */ + if (atomic_add_return(1, &sony_laptop_input.users) > 1) + return 0; + + /* kfifo */ + spin_lock_init(&sony_laptop_input.fifo_lock); + sony_laptop_input.fifo = + kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL, + &sony_laptop_input.fifo_lock); + if (IS_ERR(sony_laptop_input.fifo)) { + printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n"); + error = PTR_ERR(sony_laptop_input.fifo); + goto err_dec_users; + } + + /* init workqueue */ + sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop"); + if (!sony_laptop_input.wq) { + printk(KERN_ERR DRV_PFX + "Unabe to create workqueue.\n"); + error = -ENXIO; + goto err_free_kfifo; + } + + /* input keys */ + key_dev = input_allocate_device(); + if (!key_dev) { + error = -ENOMEM; + goto err_destroy_wq; + } + + key_dev->name = "Sony Vaio Keys"; + key_dev->id.bustype = BUS_ISA; + key_dev->id.vendor = PCI_VENDOR_ID_SONY; + key_dev->dev.parent = &acpi_device->dev; + + /* Initialize the Input Drivers: special keys */ + set_bit(EV_KEY, key_dev->evbit); + set_bit(EV_MSC, key_dev->evbit); + set_bit(MSC_SCAN, key_dev->mscbit); + key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]); + key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map); + key_dev->keycode = &sony_laptop_input_keycode_map; + for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) { + if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) { + set_bit(sony_laptop_input_keycode_map[i], + key_dev->keybit); + } + } + + error = input_register_device(key_dev); + if (error) + goto err_free_keydev; + + sony_laptop_input.key_dev = key_dev; + + /* jogdial */ + jog_dev = input_allocate_device(); + if (!jog_dev) { + error = -ENOMEM; + goto err_unregister_keydev; + } + + jog_dev->name = "Sony Vaio Jogdial"; + jog_dev->id.bustype = BUS_ISA; + jog_dev->id.vendor = PCI_VENDOR_ID_SONY; + key_dev->dev.parent = &acpi_device->dev; + + jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); + jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE); + jog_dev->relbit[0] = BIT_MASK(REL_WHEEL); + + error = input_register_device(jog_dev); + if (error) + goto err_free_jogdev; + + sony_laptop_input.jog_dev = jog_dev; + + return 0; + + err_free_jogdev: + input_free_device(jog_dev); + + err_unregister_keydev: + input_unregister_device(key_dev); + /* to avoid kref underflow below at input_free_device */ + key_dev = NULL; + + err_free_keydev: + input_free_device(key_dev); + + err_destroy_wq: + destroy_workqueue(sony_laptop_input.wq); + + err_free_kfifo: + kfifo_free(sony_laptop_input.fifo); + + err_dec_users: + atomic_dec(&sony_laptop_input.users); + return error; + } + + static void sony_laptop_remove_input(void) + { + /* cleanup only after the last user has gone */ + if (!atomic_dec_and_test(&sony_laptop_input.users)) + return; + + /* flush workqueue first */ + flush_workqueue(sony_laptop_input.wq); + + /* destroy input devs */ + input_unregister_device(sony_laptop_input.key_dev); + sony_laptop_input.key_dev = NULL; + + if (sony_laptop_input.jog_dev) { + input_unregister_device(sony_laptop_input.jog_dev); + sony_laptop_input.jog_dev = NULL; + } + + destroy_workqueue(sony_laptop_input.wq); + kfifo_free(sony_laptop_input.fifo); + } + + /*********** Platform Device ***********/ + + static atomic_t sony_pf_users = ATOMIC_INIT(0); + static struct platform_driver sony_pf_driver = { + .driver = { + .name = "sony-laptop", + .owner = THIS_MODULE, + } + }; + static struct platform_device *sony_pf_device; + + static int sony_pf_add(void) + { + int ret = 0; + + /* don't run again if already initialized */ + if (atomic_add_return(1, &sony_pf_users) > 1) + return 0; + + ret = platform_driver_register(&sony_pf_driver); + if (ret) + goto out; + + sony_pf_device = platform_device_alloc("sony-laptop", -1); + if (!sony_pf_device) { + ret = -ENOMEM; + goto out_platform_registered; + } + + ret = platform_device_add(sony_pf_device); + if (ret) + goto out_platform_alloced; + + return 0; + + out_platform_alloced: + platform_device_put(sony_pf_device); + sony_pf_device = NULL; + out_platform_registered: + platform_driver_unregister(&sony_pf_driver); + out: + atomic_dec(&sony_pf_users); + return ret; + } + + static void sony_pf_remove(void) + { + /* deregister only after the last user has gone */ + if (!atomic_dec_and_test(&sony_pf_users)) + return; + + platform_device_del(sony_pf_device); + platform_device_put(sony_pf_device); + platform_driver_unregister(&sony_pf_driver); + } + + /*********** SNC (SNY5001) Device ***********/ + + /* the device uses 1-based values, while the backlight subsystem uses + 0-based values */ + #define SONY_MAX_BRIGHTNESS 8 + + #define SNC_VALIDATE_IN 0 + #define SNC_VALIDATE_OUT 1 + + static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *, + char *); + static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *, + const char *, size_t); + static int boolean_validate(const int, const int); + static int brightness_default_validate(const int, const int); + + struct sony_nc_value { + char *name; /* name of the entry */ + char **acpiget; /* names of the ACPI get function */ + char **acpiset; /* names of the ACPI set function */ + int (*validate)(const int, const int); /* input/output validation */ + int value; /* current setting */ + int valid; /* Has ever been set */ + int debug; /* active only in debug mode ? */ + struct device_attribute devattr; /* sysfs atribute */ + }; + + #define SNC_HANDLE_NAMES(_name, _values...) \ + static char *snc_##_name[] = { _values, NULL } + + #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \ + { \ + .name = __stringify(_name), \ + .acpiget = _getters, \ + .acpiset = _setters, \ + .validate = _validate, \ + .debug = _debug, \ + .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \ + } + + #define SNC_HANDLE_NULL { .name = NULL } + + SNC_HANDLE_NAMES(fnkey_get, "GHKE"); + + SNC_HANDLE_NAMES(brightness_def_get, "GPBR"); + SNC_HANDLE_NAMES(brightness_def_set, "SPBR"); + + SNC_HANDLE_NAMES(cdpower_get, "GCDP"); + SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW"); + + SNC_HANDLE_NAMES(audiopower_get, "GAZP"); + SNC_HANDLE_NAMES(audiopower_set, "AZPW"); + + SNC_HANDLE_NAMES(lanpower_get, "GLNP"); + SNC_HANDLE_NAMES(lanpower_set, "LNPW"); + + SNC_HANDLE_NAMES(lidstate_get, "GLID"); + + SNC_HANDLE_NAMES(indicatorlamp_get, "GILS"); + SNC_HANDLE_NAMES(indicatorlamp_set, "SILS"); + + SNC_HANDLE_NAMES(gainbass_get, "GMGB"); + SNC_HANDLE_NAMES(gainbass_set, "CMGB"); + + SNC_HANDLE_NAMES(PID_get, "GPID"); + + SNC_HANDLE_NAMES(CTR_get, "GCTR"); + SNC_HANDLE_NAMES(CTR_set, "SCTR"); + + SNC_HANDLE_NAMES(PCR_get, "GPCR"); + SNC_HANDLE_NAMES(PCR_set, "SPCR"); + + SNC_HANDLE_NAMES(CMI_get, "GCMI"); + SNC_HANDLE_NAMES(CMI_set, "SCMI"); + + static struct sony_nc_value sony_nc_values[] = { + SNC_HANDLE(brightness_default, snc_brightness_def_get, + snc_brightness_def_set, brightness_default_validate, 0), + SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0), + SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0), + SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set, + boolean_validate, 0), + SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set, + boolean_validate, 1), + SNC_HANDLE(lidstate, snc_lidstate_get, NULL, + boolean_validate, 0), + SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set, + boolean_validate, 0), + SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set, + boolean_validate, 0), + /* unknown methods */ + SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1), + SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1), + SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1), + SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1), + SNC_HANDLE_NULL + }; + + static acpi_handle sony_nc_acpi_handle; + static struct acpi_device *sony_nc_acpi_device = NULL; + + /* + * acpi_evaluate_object wrappers + */ + static int acpi_callgetfunc(acpi_handle handle, char *name, int *result) + { + struct acpi_buffer output; + union acpi_object out_obj; + acpi_status status; + + output.length = sizeof(out_obj); + output.pointer = &out_obj; + + status = acpi_evaluate_object(handle, name, NULL, &output); + if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) { + *result = out_obj.integer.value; + return 0; + } + + printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n"); + + return -1; + } + + static int acpi_callsetfunc(acpi_handle handle, char *name, int value, + int *result) + { + struct acpi_object_list params; + union acpi_object in_obj; + struct acpi_buffer output; + union acpi_object out_obj; + acpi_status status; + + params.count = 1; + params.pointer = &in_obj; + in_obj.type = ACPI_TYPE_INTEGER; + in_obj.integer.value = value; + + output.length = sizeof(out_obj); + output.pointer = &out_obj; + + status = acpi_evaluate_object(handle, name, ¶ms, &output); + if (status == AE_OK) { + if (result != NULL) { + if (out_obj.type != ACPI_TYPE_INTEGER) { + printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad " + "return type\n"); + return -1; + } + *result = out_obj.integer.value; + } + return 0; + } + + printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n"); + + return -1; + } + + /* + * sony_nc_values input/output validate functions + */ + + /* brightness_default_validate: + * + * manipulate input output values to keep consistency with the + * backlight framework for which brightness values are 0-based. + */ + static int brightness_default_validate(const int direction, const int value) + { + switch (direction) { + case SNC_VALIDATE_OUT: + return value - 1; + case SNC_VALIDATE_IN: + if (value >= 0 && value < SONY_MAX_BRIGHTNESS) + return value + 1; + } + return -EINVAL; + } + + /* boolean_validate: + * + * on input validate boolean values 0/1, on output just pass the + * received value. + */ + static int boolean_validate(const int direction, const int value) + { + if (direction == SNC_VALIDATE_IN) { + if (value != 0 && value != 1) + return -EINVAL; + } + return value; + } + + /* + * Sysfs show/store common to all sony_nc_values + */ + static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr, + char *buffer) + { + int value; + struct sony_nc_value *item = + container_of(attr, struct sony_nc_value, devattr); + + if (!*item->acpiget) + return -EIO; + + if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0) + return -EIO; + + if (item->validate) + value = item->validate(SNC_VALIDATE_OUT, value); + + return snprintf(buffer, PAGE_SIZE, "%d\n", value); + } + + static ssize_t sony_nc_sysfs_store(struct device *dev, + struct device_attribute *attr, + const char *buffer, size_t count) + { + int value; + struct sony_nc_value *item = + container_of(attr, struct sony_nc_value, devattr); + + if (!item->acpiset) + return -EIO; + + if (count > 31) + return -EINVAL; + + value = simple_strtoul(buffer, NULL, 10); + + if (item->validate) + value = item->validate(SNC_VALIDATE_IN, value); + + if (value < 0) + return value; + + if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0) + return -EIO; + item->value = value; + item->valid = 1; + return count; + } + + + /* + * Backlight device + */ + static int sony_backlight_update_status(struct backlight_device *bd) + { + return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT", + bd->props.brightness + 1, NULL); + } + + static int sony_backlight_get_brightness(struct backlight_device *bd) + { + int value; + + if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) + return 0; + /* brightness levels are 1-based, while backlight ones are 0-based */ + return value - 1; + } + + static struct backlight_device *sony_backlight_device; + static struct backlight_ops sony_backlight_ops = { + .update_status = sony_backlight_update_status, + .get_brightness = sony_backlight_get_brightness, + }; + + /* + * New SNC-only Vaios event mapping to driver known keys + */ + struct sony_nc_event { + u8 data; + u8 event; + }; + + static struct sony_nc_event *sony_nc_events; + + /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence + * for Fn keys + */ + static int sony_nc_C_enable(const struct dmi_system_id *id) + { + int result = 0; + + printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident); + + sony_nc_events = id->driver_data; + + if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0 + || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0 + || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0 + || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0 + || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0 + || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) { + printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some " + "functionalities may be missing\n"); + return 1; + } + return 0; + } + + static struct sony_nc_event sony_C_events[] = { + { 0x81, SONYPI_EVENT_FNKEY_F1 }, + { 0x01, SONYPI_EVENT_FNKEY_RELEASED }, + { 0x85, SONYPI_EVENT_FNKEY_F5 }, + { 0x05, SONYPI_EVENT_FNKEY_RELEASED }, + { 0x86, SONYPI_EVENT_FNKEY_F6 }, + { 0x06, SONYPI_EVENT_FNKEY_RELEASED }, + { 0x87, SONYPI_EVENT_FNKEY_F7 }, + { 0x07, SONYPI_EVENT_FNKEY_RELEASED }, + { 0x8A, SONYPI_EVENT_FNKEY_F10 }, + { 0x0A, SONYPI_EVENT_FNKEY_RELEASED }, + { 0x8C, SONYPI_EVENT_FNKEY_F12 }, + { 0x0C, SONYPI_EVENT_FNKEY_RELEASED }, + { 0, 0 }, + }; + + /* SNC-only model map */ + static const struct dmi_system_id sony_nc_ids[] = { + { + .ident = "Sony Vaio FE Series", + .callback = sony_nc_C_enable, + .driver_data = sony_C_events, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"), + }, + }, + { + .ident = "Sony Vaio FZ Series", + .callback = sony_nc_C_enable, + .driver_data = sony_C_events, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"), + }, + }, + { + .ident = "Sony Vaio C Series", + .callback = sony_nc_C_enable, + .driver_data = sony_C_events, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"), + }, + }, + { + .ident = "Sony Vaio N Series", + .callback = sony_nc_C_enable, + .driver_data = sony_C_events, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"), + }, + }, + { } + }; + + /* + * ACPI callbacks + */ + static void sony_acpi_notify(acpi_handle handle, u32 event, void *data) + { + struct sony_nc_event *evmap; + u32 ev = event; + int result; + + if (ev == 0x92) { + /* read the key pressed from EC.GECR + * A call to SN07 with 0x0202 will do it as well respecting + * the current protocol on different OSes + * + * Note: the path for GECR may be + * \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends) + * \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR) + * + * TODO: we may want to do the same for the older GHKE -need + * dmi list- so this snippet may become one more callback. + */ + if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0) + dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev); + else + ev = result & 0xFF; + } + + if (sony_nc_events) + for (evmap = sony_nc_events; evmap->event; evmap++) { + if (evmap->data == ev) { + ev = evmap->event; + break; + } + } + + dprintk("sony_acpi_notify, event: 0x%.2x\n", ev); + sony_laptop_report_input_event(ev); + acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev); + } + + static acpi_status sony_walk_callback(acpi_handle handle, u32 level, + void *context, void **return_value) + { - struct acpi_namespace_node *node; - union acpi_operand_object *operand; ++ struct acpi_device_info *info; ++ struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; + - node = (struct acpi_namespace_node *)handle; - operand = (union acpi_operand_object *)node->object; ++ if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) { ++ info = buffer.pointer; + - printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii, - (u32) operand->method.param_count); ++ printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", ++ (char *)&info->name, info->param_count); ++ ++ kfree(buffer.pointer); ++ } + + return AE_OK; + } + + /* + * ACPI device + */ + static int sony_nc_resume(struct acpi_device *device) + { + struct sony_nc_value *item; + + for (item = sony_nc_values; item->name; item++) { + int ret; + + if (!item->valid) + continue; + ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, + item->value, NULL); + if (ret < 0) { + printk("%s: %d\n", __func__, ret); + break; + } + } + + /* set the last requested brightness level */ + if (sony_backlight_device && + !sony_backlight_update_status(sony_backlight_device)) + printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n"); + + /* re-initialize models with specific requirements */ + dmi_check_system(sony_nc_ids); + + return 0; + } + + static int sony_nc_add(struct acpi_device *device) + { + acpi_status status; + int result = 0; + acpi_handle handle; + struct sony_nc_value *item; + + printk(KERN_INFO DRV_PFX "%s v%s.\n", + SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION); + + sony_nc_acpi_device = device; + strcpy(acpi_device_class(device), "sony/hotkey"); + + sony_nc_acpi_handle = device->handle; + + /* read device status */ + result = acpi_bus_get_status(device); + /* bail IFF the above call was successful and the device is not present */ + if (!result && !device->status.present) { + dprintk("Device not present\n"); + result = -ENODEV; + goto outwalk; + } + + if (debug) { + status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle, + 1, sony_walk_callback, NULL, NULL); + if (ACPI_FAILURE(status)) { + printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n"); + result = -ENODEV; + goto outwalk; + } + } + + /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1 + * should be respected as we already checked for the device presence above */ + if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) { + dprintk("Invoking _INI\n"); + if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI, + NULL, NULL))) + dprintk("_INI Method failed\n"); + } + + /* setup input devices and helper fifo */ + result = sony_laptop_setup_input(device); + if (result) { + printk(KERN_ERR DRV_PFX + "Unabe to create input devices.\n"); + goto outwalk; + } + + status = acpi_install_notify_handler(sony_nc_acpi_handle, + ACPI_DEVICE_NOTIFY, + sony_acpi_notify, NULL); + if (ACPI_FAILURE(status)) { + printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status); + result = -ENODEV; + goto outinput; + } + + if (acpi_video_backlight_support()) { + printk(KERN_INFO DRV_PFX "brightness ignored, must be " + "controlled by ACPI video driver\n"); + } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", + &handle))) { + sony_backlight_device = backlight_device_register("sony", NULL, + NULL, + &sony_backlight_ops); + + if (IS_ERR(sony_backlight_device)) { + printk(KERN_WARNING DRV_PFX "unable to register backlight device\n"); + sony_backlight_device = NULL; + } else { + sony_backlight_device->props.brightness = + sony_backlight_get_brightness + (sony_backlight_device); + sony_backlight_device->props.max_brightness = + SONY_MAX_BRIGHTNESS - 1; + } + + } + + /* initialize models with specific requirements */ + dmi_check_system(sony_nc_ids); + + result = sony_pf_add(); + if (result) + goto outbacklight; + + /* create sony_pf sysfs attributes related to the SNC device */ + for (item = sony_nc_values; item->name; ++item) { + + if (!debug && item->debug) + continue; + + /* find the available acpiget as described in the DSDT */ + for (; item->acpiget && *item->acpiget; ++item->acpiget) { + if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, + *item->acpiget, + &handle))) { + dprintk("Found %s getter: %s\n", + item->name, *item->acpiget); + item->devattr.attr.mode |= S_IRUGO; + break; + } + } + + /* find the available acpiset as described in the DSDT */ + for (; item->acpiset && *item->acpiset; ++item->acpiset) { + if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, + *item->acpiset, + &handle))) { + dprintk("Found %s setter: %s\n", + item->name, *item->acpiset); + item->devattr.attr.mode |= S_IWUSR; + break; + } + } + + if (item->devattr.attr.mode != 0) { + result = + device_create_file(&sony_pf_device->dev, + &item->devattr); + if (result) + goto out_sysfs; + } + } + + return 0; + + out_sysfs: + for (item = sony_nc_values; item->name; ++item) { + device_remove_file(&sony_pf_device->dev, &item->devattr); + } + sony_pf_remove(); + + outbacklight: + if (sony_backlight_device) + backlight_device_unregister(sony_backlight_device); + + status = acpi_remove_notify_handler(sony_nc_acpi_handle, + ACPI_DEVICE_NOTIFY, + sony_acpi_notify); + if (ACPI_FAILURE(status)) + printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n"); + + outinput: + sony_laptop_remove_input(); + + outwalk: + return result; + } + + static int sony_nc_remove(struct acpi_device *device, int type) + { + acpi_status status; + struct sony_nc_value *item; + + if (sony_backlight_device) + backlight_device_unregister(sony_backlight_device); + + sony_nc_acpi_device = NULL; + + status = acpi_remove_notify_handler(sony_nc_acpi_handle, + ACPI_DEVICE_NOTIFY, + sony_acpi_notify); + if (ACPI_FAILURE(status)) + printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n"); + + for (item = sony_nc_values; item->name; ++item) { + device_remove_file(&sony_pf_device->dev, &item->devattr); + } + + sony_pf_remove(); + sony_laptop_remove_input(); + dprintk(SONY_NC_DRIVER_NAME " removed.\n"); + + return 0; + } + + static const struct acpi_device_id sony_device_ids[] = { + {SONY_NC_HID, 0}, + {SONY_PIC_HID, 0}, + {"", 0}, + }; + MODULE_DEVICE_TABLE(acpi, sony_device_ids); + + static const struct acpi_device_id sony_nc_device_ids[] = { + {SONY_NC_HID, 0}, + {"", 0}, + }; + + static struct acpi_driver sony_nc_driver = { + .name = SONY_NC_DRIVER_NAME, + .class = SONY_NC_CLASS, + .ids = sony_nc_device_ids, + .owner = THIS_MODULE, + .ops = { + .add = sony_nc_add, + .remove = sony_nc_remove, + .resume = sony_nc_resume, + }, + }; + + /*********** SPIC (SNY6001) Device ***********/ + + #define SONYPI_DEVICE_TYPE1 0x00000001 + #define SONYPI_DEVICE_TYPE2 0x00000002 + #define SONYPI_DEVICE_TYPE3 0x00000004 + #define SONYPI_DEVICE_TYPE4 0x00000008 + + #define SONYPI_TYPE1_OFFSET 0x04 + #define SONYPI_TYPE2_OFFSET 0x12 + #define SONYPI_TYPE3_OFFSET 0x12 + #define SONYPI_TYPE4_OFFSET 0x12 + + struct sony_pic_ioport { + struct acpi_resource_io io1; + struct acpi_resource_io io2; + struct list_head list; + }; + + struct sony_pic_irq { + struct acpi_resource_irq irq; + struct list_head list; + }; + + struct sonypi_eventtypes { + u8 data; + unsigned long mask; + struct sonypi_event *events; + }; + + struct device_ctrl { + int model; + int (*handle_irq)(const u8, const u8); + u16 evport_offset; + u8 has_camera; + u8 has_bluetooth; + u8 has_wwan; + struct sonypi_eventtypes *event_types; + }; + + struct sony_pic_dev { + struct device_ctrl *control; + struct acpi_device *acpi_dev; + struct sony_pic_irq *cur_irq; + struct sony_pic_ioport *cur_ioport; + struct list_head interrupts; + struct list_head ioports; + struct mutex lock; + u8 camera_power; + u8 bluetooth_power; + u8 wwan_power; + }; + + static struct sony_pic_dev spic_dev = { + .interrupts = LIST_HEAD_INIT(spic_dev.interrupts), + .ioports = LIST_HEAD_INIT(spic_dev.ioports), + }; + + /* Event masks */ + #define SONYPI_JOGGER_MASK 0x00000001 + #define SONYPI_CAPTURE_MASK 0x00000002 + #define SONYPI_FNKEY_MASK 0x00000004 + #define SONYPI_BLUETOOTH_MASK 0x00000008 + #define SONYPI_PKEY_MASK 0x00000010 + #define SONYPI_BACK_MASK 0x00000020 + #define SONYPI_HELP_MASK 0x00000040 + #define SONYPI_LID_MASK 0x00000080 + #define SONYPI_ZOOM_MASK 0x00000100 + #define SONYPI_THUMBPHRASE_MASK 0x00000200 + #define SONYPI_MEYE_MASK 0x00000400 + #define SONYPI_MEMORYSTICK_MASK 0x00000800 + #define SONYPI_BATTERY_MASK 0x00001000 + #define SONYPI_WIRELESS_MASK 0x00002000 + + struct sonypi_event { + u8 data; + u8 event; + }; + + /* The set of possible button release events */ + static struct sonypi_event sonypi_releaseev[] = { + { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED }, + { 0, 0 } + }; + + /* The set of possible jogger events */ + static struct sonypi_event sonypi_joggerev[] = { + { 0x1f, SONYPI_EVENT_JOGDIAL_UP }, + { 0x01, SONYPI_EVENT_JOGDIAL_DOWN }, + { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED }, + { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED }, + { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP }, + { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN }, + { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED }, + { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED }, + { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP }, + { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN }, + { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED }, + { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED }, + { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED }, + { 0, 0 } + }; + + /* The set of possible capture button events */ + static struct sonypi_event sonypi_captureev[] = { + { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED }, + { 0x07, SONYPI_EVENT_CAPTURE_PRESSED }, + { 0x40, SONYPI_EVENT_CAPTURE_PRESSED }, + { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED }, + { 0, 0 } + }; + + /* The set of possible fnkeys events */ + static struct sonypi_event sonypi_fnkeyev[] = { + { 0x10, SONYPI_EVENT_FNKEY_ESC }, + { 0x11, SONYPI_EVENT_FNKEY_F1 }, + { 0x12, SONYPI_EVENT_FNKEY_F2 }, + { 0x13, SONYPI_EVENT_FNKEY_F3 }, + { 0x14, SONYPI_EVENT_FNKEY_F4 }, + { 0x15, SONYPI_EVENT_FNKEY_F5 }, + { 0x16, SONYPI_EVENT_FNKEY_F6 }, + { 0x17, SONYPI_EVENT_FNKEY_F7 }, + { 0x18, SONYPI_EVENT_FNKEY_F8 }, + { 0x19, SONYPI_EVENT_FNKEY_F9 }, + { 0x1a, SONYPI_EVENT_FNKEY_F10 }, + { 0x1b, SONYPI_EVENT_FNKEY_F11 }, + { 0x1c, SONYPI_EVENT_FNKEY_F12 }, + { 0x1f, SONYPI_EVENT_FNKEY_RELEASED }, + { 0x21, SONYPI_EVENT_FNKEY_1 }, + { 0x22, SONYPI_EVENT_FNKEY_2 }, + { 0x31, SONYPI_EVENT_FNKEY_D }, + { 0x32, SONYPI_EVENT_FNKEY_E }, + { 0x33, SONYPI_EVENT_FNKEY_F }, + { 0x34, SONYPI_EVENT_FNKEY_S }, + { 0x35, SONYPI_EVENT_FNKEY_B }, + { 0x36, SONYPI_EVENT_FNKEY_ONLY }, + { 0, 0 } + }; + + /* The set of possible program key events */ + static struct sonypi_event sonypi_pkeyev[] = { + { 0x01, SONYPI_EVENT_PKEY_P1 }, + { 0x02, SONYPI_EVENT_PKEY_P2 }, + { 0x04, SONYPI_EVENT_PKEY_P3 }, + { 0, 0 } + }; + + /* The set of possible bluetooth events */ + static struct sonypi_event sonypi_blueev[] = { + { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED }, + { 0x59, SONYPI_EVENT_BLUETOOTH_ON }, + { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF }, + { 0, 0 } + }; + + /* The set of possible wireless events */ + static struct sonypi_event sonypi_wlessev[] = { + { 0x59, SONYPI_EVENT_WIRELESS_ON }, + { 0x5a, SONYPI_EVENT_WIRELESS_OFF }, + { 0, 0 } + }; + + /* The set of possible back button events */ + static struct sonypi_event sonypi_backev[] = { + { 0x20, SONYPI_EVENT_BACK_PRESSED }, + { 0, 0 } + }; + + /* The set of possible help button events */ + static struct sonypi_event sonypi_helpev[] = { + { 0x3b, SONYPI_EVENT_HELP_PRESSED }, + { 0, 0 } + }; + + + /* The set of possible lid events */ + static struct sonypi_event sonypi_lidev[] = { + { 0x51, SONYPI_EVENT_LID_CLOSED }, + { 0x50, SONYPI_EVENT_LID_OPENED }, + { 0, 0 } + }; + + /* The set of possible zoom events */ + static struct sonypi_event sonypi_zoomev[] = { + { 0x39, SONYPI_EVENT_ZOOM_PRESSED }, + { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED }, + { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED }, + { 0, 0 } + }; + + /* The set of possible thumbphrase events */ + static struct sonypi_event sonypi_thumbphraseev[] = { + { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED }, + { 0, 0 } + }; + + /* The set of possible motioneye camera events */ + static struct sonypi_event sonypi_meyeev[] = { + { 0x00, SONYPI_EVENT_MEYE_FACE }, + { 0x01, SONYPI_EVENT_MEYE_OPPOSITE }, + { 0, 0 } + }; + + /* The set of possible memorystick events */ + static struct sonypi_event sonypi_memorystickev[] = { + { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT }, + { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT }, + { 0, 0 } + }; + + /* The set of possible battery events */ + static struct sonypi_event sonypi_batteryev[] = { + { 0x20, SONYPI_EVENT_BATTERY_INSERT }, + { 0x30, SONYPI_EVENT_BATTERY_REMOVE }, + { 0, 0 } + }; + + static struct sonypi_eventtypes type1_events[] = { + { 0, 0xffffffff, sonypi_releaseev }, + { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev }, + { 0x30, SONYPI_LID_MASK, sonypi_lidev }, + { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev }, + { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev }, + { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, + { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev }, + { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev }, + { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, + { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev }, + { 0 }, + }; + static struct sonypi_eventtypes type2_events[] = { + { 0, 0xffffffff, sonypi_releaseev }, + { 0x38, SONYPI_LID_MASK, sonypi_lidev }, + { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev }, + { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev }, + { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, + { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev }, + { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev }, + { 0x11, SONYPI_BACK_MASK, sonypi_backev }, + { 0x21, SONYPI_HELP_MASK, sonypi_helpev }, + { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev }, + { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev }, + { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, + { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev }, + { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev }, + { 0 }, + }; + static struct sonypi_eventtypes type3_events[] = { + { 0, 0xffffffff, sonypi_releaseev }, + { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, + { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev }, + { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, + { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev }, + { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev }, + { 0 }, + }; + static struct sonypi_eventtypes type4_events[] = { + { 0, 0xffffffff, sonypi_releaseev }, + { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev }, + { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev }, + { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev }, + { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev }, + { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev }, + { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev }, + { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev }, + { 0 }, + }; + + /* low level spic calls */ + #define ITERATIONS_LONG 10000 + #define ITERATIONS_SHORT 10 + #define wait_on_command(command, iterations) { \ + unsigned int n = iterations; \ + while (--n && (command)) \ + udelay(1); \ + if (!n) \ + dprintk("command failed at %s : %s (line %d)\n", \ + __FILE__, __func__, __LINE__); \ + } + + static u8 sony_pic_call1(u8 dev) + { + u8 v1, v2; + + wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, + ITERATIONS_LONG); + outb(dev, spic_dev.cur_ioport->io1.minimum + 4); + v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4); + v2 = inb_p(spic_dev.cur_ioport->io1.minimum); + dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1); + return v2; + } + + static u8 sony_pic_call2(u8 dev, u8 fn) + { + u8 v1; + + wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, + ITERATIONS_LONG); + outb(dev, spic_dev.cur_ioport->io1.minimum + 4); + wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, + ITERATIONS_LONG); + outb(fn, spic_dev.cur_ioport->io1.minimum); + v1 = inb_p(spic_dev.cur_ioport->io1.minimum); + dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1); + return v1; + } + + static u8 sony_pic_call3(u8 dev, u8 fn, u8 v) + { + u8 v1; + + wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); + outb(dev, spic_dev.cur_ioport->io1.minimum + 4); + wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); + outb(fn, spic_dev.cur_ioport->io1.minimum); + wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG); + outb(v, spic_dev.cur_ioport->io1.minimum); + v1 = inb_p(spic_dev.cur_ioport->io1.minimum); + dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n", + dev, fn, v, v1); + return v1; + } + + /* + * minidrivers for SPIC models + */ + static int type4_handle_irq(const u8 data_mask, const u8 ev) + { + /* + * 0x31 could mean we have to take some extra action and wait for + * the next irq for some Type4 models, it will generate a new + * irq and we can read new data from the device: + * - 0x5c and 0x5f requires 0xA0 + * - 0x61 requires 0xB3 + */ + if (data_mask == 0x31) { + if (ev == 0x5c || ev == 0x5f) + sony_pic_call1(0xA0); + else if (ev == 0x61) + sony_pic_call1(0xB3); + return 0; + } + return 1; + } + + static struct device_ctrl spic_types[] = { + { + .model = SONYPI_DEVICE_TYPE1, + .handle_irq = NULL, + .evport_offset = SONYPI_TYPE1_OFFSET, + .event_types = type1_events, + }, + { + .model = SONYPI_DEVICE_TYPE2, + .handle_irq = NULL, + .evport_offset = SONYPI_TYPE2_OFFSET, + .event_types = type2_events, + }, + { + .model = SONYPI_DEVICE_TYPE3, + .handle_irq = NULL, + .evport_offset = SONYPI_TYPE3_OFFSET, + .event_types = type3_events, + }, + { + .model = SONYPI_DEVICE_TYPE4, + .handle_irq = type4_handle_irq, + .evport_offset = SONYPI_TYPE4_OFFSET, + .event_types = type4_events, + }, + }; + + static void sony_pic_detect_device_type(struct sony_pic_dev *dev) + { + struct pci_dev *pcidev; + + pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB_3, NULL); + if (pcidev) { + dev->control = &spic_types[0]; + goto out; + } + + pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_ICH6_1, NULL); + if (pcidev) { + dev->control = &spic_types[2]; + goto out; + } + + pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_ICH7_1, NULL); + if (pcidev) { + dev->control = &spic_types[3]; + goto out; + } + + pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_ICH8_4, NULL); + if (pcidev) { + dev->control = &spic_types[3]; + goto out; + } + + /* default */ + dev->control = &spic_types[1]; + + out: + if (pcidev) + pci_dev_put(pcidev); + + printk(KERN_INFO DRV_PFX "detected Type%d model\n", + dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 : + dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 : + dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4); + } + + /* camera tests and poweron/poweroff */ + #define SONYPI_CAMERA_PICTURE 5 + #define SONYPI_CAMERA_CONTROL 0x10 + + #define SONYPI_CAMERA_BRIGHTNESS 0 + #define SONYPI_CAMERA_CONTRAST 1 + #define SONYPI_CAMERA_HUE 2 + #define SONYPI_CAMERA_COLOR 3 + #define SONYPI_CAMERA_SHARPNESS 4 + + #define SONYPI_CAMERA_EXPOSURE_MASK 0xC + #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3 + #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30 + #define SONYPI_CAMERA_MUTE_MASK 0x40 + + /* the rest don't need a loop until not 0xff */ + #define SONYPI_CAMERA_AGC 6 + #define SONYPI_CAMERA_AGC_MASK 0x30 + #define SONYPI_CAMERA_SHUTTER_MASK 0x7 + + #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7 + #define SONYPI_CAMERA_CONTROL 0x10 + + #define SONYPI_CAMERA_STATUS 7 + #define SONYPI_CAMERA_STATUS_READY 0x2 + #define SONYPI_CAMERA_STATUS_POSITION 0x4 + + #define SONYPI_DIRECTION_BACKWARDS 0x4 + + #define SONYPI_CAMERA_REVISION 8 + #define SONYPI_CAMERA_ROMVERSION 9 + + static int __sony_pic_camera_ready(void) + { + u8 v; + + v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS); + return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY)); + } + + static int __sony_pic_camera_off(void) + { + if (!camera) { + printk(KERN_WARNING DRV_PFX "camera control not enabled\n"); + return -ENODEV; + } + + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, + SONYPI_CAMERA_MUTE_MASK), + ITERATIONS_SHORT); + + if (spic_dev.camera_power) { + sony_pic_call2(0x91, 0); + spic_dev.camera_power = 0; + } + return 0; + } + + static int __sony_pic_camera_on(void) + { + int i, j, x; + + if (!camera) { + printk(KERN_WARNING DRV_PFX "camera control not enabled\n"); + return -ENODEV; + } + + if (spic_dev.camera_power) + return 0; + + for (j = 5; j > 0; j--) { + + for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++) + msleep(10); + sony_pic_call1(0x93); + + for (i = 400; i > 0; i--) { + if (__sony_pic_camera_ready()) + break; + msleep(10); + } + if (i) + break; + } + + if (j == 0) { + printk(KERN_WARNING DRV_PFX "failed to power on camera\n"); + return -ENODEV; + } + + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL, + 0x5a), + ITERATIONS_SHORT); + + spic_dev.camera_power = 1; + return 0; + } + + /* External camera command (exported to the motion eye v4l driver) */ + int sony_pic_camera_command(int command, u8 value) + { + if (!camera) + return -EIO; + + mutex_lock(&spic_dev.lock); + + switch (command) { + case SONY_PIC_COMMAND_SETCAMERA: + if (value) + __sony_pic_camera_on(); + else + __sony_pic_camera_off(); + break; + case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS: + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value), + ITERATIONS_SHORT); + break; + case SONY_PIC_COMMAND_SETCAMERACONTRAST: + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value), + ITERATIONS_SHORT); + break; + case SONY_PIC_COMMAND_SETCAMERAHUE: + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value), + ITERATIONS_SHORT); + break; + case SONY_PIC_COMMAND_SETCAMERACOLOR: + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value), + ITERATIONS_SHORT); + break; + case SONY_PIC_COMMAND_SETCAMERASHARPNESS: + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value), + ITERATIONS_SHORT); + break; + case SONY_PIC_COMMAND_SETCAMERAPICTURE: + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value), + ITERATIONS_SHORT); + break; + case SONY_PIC_COMMAND_SETCAMERAAGC: + wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value), + ITERATIONS_SHORT); + break; + default: + printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n", + command); + break; + } + mutex_unlock(&spic_dev.lock); + return 0; + } + EXPORT_SYMBOL(sony_pic_camera_command); + + /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */ + static void sony_pic_set_wwanpower(u8 state) + { + state = !!state; + mutex_lock(&spic_dev.lock); + if (spic_dev.wwan_power == state) { + mutex_unlock(&spic_dev.lock); + return; + } + sony_pic_call2(0xB0, state); + spic_dev.wwan_power = state; + mutex_unlock(&spic_dev.lock); + } + + static ssize_t sony_pic_wwanpower_store(struct device *dev, + struct device_attribute *attr, + const char *buffer, size_t count) + { + unsigned long value; + if (count > 31) + return -EINVAL; + + value = simple_strtoul(buffer, NULL, 10); + sony_pic_set_wwanpower(value); + + return count; + } + + static ssize_t sony_pic_wwanpower_show(struct device *dev, + struct device_attribute *attr, char *buffer) + { + ssize_t count; + mutex_lock(&spic_dev.lock); + count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power); + mutex_unlock(&spic_dev.lock); + return count; + } + + /* bluetooth subsystem power state */ + static void __sony_pic_set_bluetoothpower(u8 state) + { + state = !!state; + if (spic_dev.bluetooth_power == state) + return; + sony_pic_call2(0x96, state); + sony_pic_call1(0x82); + spic_dev.bluetooth_power = state; + } + + static ssize_t sony_pic_bluetoothpower_store(struct device *dev, + struct device_attribute *attr, + const char *buffer, size_t count) + { + unsigned long value; + if (count > 31) + return -EINVAL; + + value = simple_strtoul(buffer, NULL, 10); + mutex_lock(&spic_dev.lock); + __sony_pic_set_bluetoothpower(value); + mutex_unlock(&spic_dev.lock); + + return count; + } + + static ssize_t sony_pic_bluetoothpower_show(struct device *dev, + struct device_attribute *attr, char *buffer) + { + ssize_t count = 0; + mutex_lock(&spic_dev.lock); + count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power); + mutex_unlock(&spic_dev.lock); + return count; + } + + /* fan speed */ + /* FAN0 information (reverse engineered from ACPI tables) */ + #define SONY_PIC_FAN0_STATUS 0x93 + static int sony_pic_set_fanspeed(unsigned long value) + { + return ec_write(SONY_PIC_FAN0_STATUS, value); + } + + static int sony_pic_get_fanspeed(u8 *value) + { + return ec_read(SONY_PIC_FAN0_STATUS, value); + } + + static ssize_t sony_pic_fanspeed_store(struct device *dev, + struct device_attribute *attr, + const char *buffer, size_t count) + { + unsigned long value; + if (count > 31) + return -EINVAL; + + value = simple_strtoul(buffer, NULL, 10); + if (sony_pic_set_fanspeed(value)) + return -EIO; + + return count; + } + + static ssize_t sony_pic_fanspeed_show(struct device *dev, + struct device_attribute *attr, char *buffer) + { + u8 value = 0; + if (sony_pic_get_fanspeed(&value)) + return -EIO; + + return snprintf(buffer, PAGE_SIZE, "%d\n", value); + } + + #define SPIC_ATTR(_name, _mode) \ + struct device_attribute spic_attr_##_name = __ATTR(_name, \ + _mode, sony_pic_## _name ##_show, \ + sony_pic_## _name ##_store) + + static SPIC_ATTR(bluetoothpower, 0644); + static SPIC_ATTR(wwanpower, 0644); + static SPIC_ATTR(fanspeed, 0644); + + static struct attribute *spic_attributes[] = { + &spic_attr_bluetoothpower.attr, + &spic_attr_wwanpower.attr, + &spic_attr_fanspeed.attr, + NULL + }; + + static struct attribute_group spic_attribute_group = { + .attrs = spic_attributes + }; + + /******** SONYPI compatibility **********/ + #ifdef CONFIG_SONYPI_COMPAT + + /* battery / brightness / temperature addresses */ + #define SONYPI_BAT_FLAGS 0x81 + #define SONYPI_LCD_LIGHT 0x96 + #define SONYPI_BAT1_PCTRM 0xa0 + #define SONYPI_BAT1_LEFT 0xa2 + #define SONYPI_BAT1_MAXRT 0xa4 + #define SONYPI_BAT2_PCTRM 0xa8 + #define SONYPI_BAT2_LEFT 0xaa + #define SONYPI_BAT2_MAXRT 0xac + #define SONYPI_BAT1_MAXTK 0xb0 + #define SONYPI_BAT1_FULL 0xb2 + #define SONYPI_BAT2_MAXTK 0xb8 + #define SONYPI_BAT2_FULL 0xba + #define SONYPI_TEMP_STATUS 0xC1 + + struct sonypi_compat_s { + struct fasync_struct *fifo_async; + struct kfifo *fifo; + spinlock_t fifo_lock; + wait_queue_head_t fifo_proc_list; + atomic_t open_count; + }; + static struct sonypi_compat_s sonypi_compat = { + .open_count = ATOMIC_INIT(0), + }; + + static int sonypi_misc_fasync(int fd, struct file *filp, int on) + { + int retval; + + retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async); + if (retval < 0) + return retval; + return 0; + } + + static int sonypi_misc_release(struct inode *inode, struct file *file) + { + atomic_dec(&sonypi_compat.open_count); + return 0; + } + + static int sonypi_misc_open(struct inode *inode, struct file *file) + { + /* Flush input queue on first open */ + lock_kernel(); + if (atomic_inc_return(&sonypi_compat.open_count) == 1) + kfifo_reset(sonypi_compat.fifo); + unlock_kernel(); + return 0; + } + + static ssize_t sonypi_misc_read(struct file *file, char __user *buf, + size_t count, loff_t *pos) + { + ssize_t ret; + unsigned char c; + + if ((kfifo_len(sonypi_compat.fifo) == 0) && + (file->f_flags & O_NONBLOCK)) + return -EAGAIN; + + ret = wait_event_interruptible(sonypi_compat.fifo_proc_list, + kfifo_len(sonypi_compat.fifo) != 0); + if (ret) + return ret; + + while (ret < count && + (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) { + if (put_user(c, buf++)) + return -EFAULT; + ret++; + } + + if (ret > 0) { + struct inode *inode = file->f_path.dentry->d_inode; + inode->i_atime = current_fs_time(inode->i_sb); + } + + return ret; + } + + static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait) + { + poll_wait(file, &sonypi_compat.fifo_proc_list, wait); + if (kfifo_len(sonypi_compat.fifo)) + return POLLIN | POLLRDNORM; + return 0; + } + + static int ec_read16(u8 addr, u16 *value) + { + u8 val_lb, val_hb; + if (ec_read(addr, &val_lb)) + return -1; + if (ec_read(addr + 1, &val_hb)) + return -1; + *value = val_lb | (val_hb << 8); + return 0; + } + + static int sonypi_misc_ioctl(struct inode *ip, struct file *fp, + unsigned int cmd, unsigned long arg) + { + int ret = 0; + void __user *argp = (void __user *)arg; + u8 val8; + u16 val16; + int value; + + mutex_lock(&spic_dev.lock); + switch (cmd) { + case SONYPI_IOCGBRT: + if (sony_backlight_device == NULL) { + ret = -EIO; + break; + } + if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) { + ret = -EIO; + break; + } + val8 = ((value & 0xff) - 1) << 5; + if (copy_to_user(argp, &val8, sizeof(val8))) + ret = -EFAULT; + break; + case SONYPI_IOCSBRT: + if (sony_backlight_device == NULL) { + ret = -EIO; + break; + } + if (copy_from_user(&val8, argp, sizeof(val8))) { + ret = -EFAULT; + break; + } + if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT", + (val8 >> 5) + 1, NULL)) { + ret = -EIO; + break; + } + /* sync the backlight device status */ + sony_backlight_device->props.brightness = + sony_backlight_get_brightness(sony_backlight_device); + break; + case SONYPI_IOCGBAT1CAP: + if (ec_read16(SONYPI_BAT1_FULL, &val16)) { + ret = -EIO; + break; + } + if (copy_to_user(argp, &val16, sizeof(val16))) + ret = -EFAULT; + break; + case SONYPI_IOCGBAT1REM: + if (ec_read16(SONYPI_BAT1_LEFT, &val16)) { + ret = -EIO; + break; + } + if (copy_to_user(argp, &val16, sizeof(val16))) + ret = -EFAULT; + break; + case SONYPI_IOCGBAT2CAP: + if (ec_read16(SONYPI_BAT2_FULL, &val16)) { + ret = -EIO; + break; + } + if (copy_to_user(argp, &val16, sizeof(val16))) + ret = -EFAULT; + break; + case SONYPI_IOCGBAT2REM: + if (ec_read16(SONYPI_BAT2_LEFT, &val16)) { + ret = -EIO; + break; + } + if (copy_to_user(argp, &val16, sizeof(val16))) + ret = -EFAULT; + break; + case SONYPI_IOCGBATFLAGS: + if (ec_read(SONYPI_BAT_FLAGS, &val8)) { + ret = -EIO; + break; + } + val8 &= 0x07; + if (copy_to_user(argp, &val8, sizeof(val8))) + ret = -EFAULT; + break; + case SONYPI_IOCGBLUE: + val8 = spic_dev.bluetooth_power; + if (copy_to_user(argp, &val8, sizeof(val8))) + ret = -EFAULT; + break; + case SONYPI_IOCSBLUE: + if (copy_from_user(&val8, argp, sizeof(val8))) { + ret = -EFAULT; + break; + } + __sony_pic_set_bluetoothpower(val8); + break; + /* FAN Controls */ + case SONYPI_IOCGFAN: + if (sony_pic_get_fanspeed(&val8)) { + ret = -EIO; + break; + } + if (copy_to_user(argp, &val8, sizeof(val8))) + ret = -EFAULT; + break; + case SONYPI_IOCSFAN: + if (copy_from_user(&val8, argp, sizeof(val8))) { + ret = -EFAULT; + break; + } + if (sony_pic_set_fanspeed(val8)) + ret = -EIO; + break; + /* GET Temperature (useful under APM) */ + case SONYPI_IOCGTEMP: + if (ec_read(SONYPI_TEMP_STATUS, &val8)) { + ret = -EIO; + break; + } + if (copy_to_user(argp, &val8, sizeof(val8))) + ret = -EFAULT; + break; + default: + ret = -EINVAL; + } + mutex_unlock(&spic_dev.lock); + return ret; + } + + static const struct file_operations sonypi_misc_fops = { + .owner = THIS_MODULE, + .read = sonypi_misc_read, + .poll = sonypi_misc_poll, + .open = sonypi_misc_open, + .release = sonypi_misc_release, + .fasync = sonypi_misc_fasync, + .ioctl = sonypi_misc_ioctl, + }; + + static struct miscdevice sonypi_misc_device = { + .minor = MISC_DYNAMIC_MINOR, + .name = "sonypi", + .fops = &sonypi_misc_fops, + }; + + static void sonypi_compat_report_event(u8 event) + { + kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event)); + kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN); + wake_up_interruptible(&sonypi_compat.fifo_proc_list); + } + + static int sonypi_compat_init(void) + { + int error; + + spin_lock_init(&sonypi_compat.fifo_lock); + sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL, + &sonypi_compat.fifo_lock); + if (IS_ERR(sonypi_compat.fifo)) { + printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n"); + return PTR_ERR(sonypi_compat.fifo); + } + + init_waitqueue_head(&sonypi_compat.fifo_proc_list); + + if (minor != -1) + sonypi_misc_device.minor = minor; + error = misc_register(&sonypi_misc_device); + if (error) { + printk(KERN_ERR DRV_PFX "misc_register failed\n"); + goto err_free_kfifo; + } + if (minor == -1) + printk(KERN_INFO DRV_PFX "device allocated minor is %d\n", + sonypi_misc_device.minor); + + return 0; + + err_free_kfifo: + kfifo_free(sonypi_compat.fifo); + return error; + } + + static void sonypi_compat_exit(void) + { + misc_deregister(&sonypi_misc_device); + kfifo_free(sonypi_compat.fifo); + } + #else + static int sonypi_compat_init(void) { return 0; } + static void sonypi_compat_exit(void) { } + static void sonypi_compat_report_event(u8 event) { } + #endif /* CONFIG_SONYPI_COMPAT */ + + /* + * ACPI callbacks + */ + static acpi_status + sony_pic_read_possible_resource(struct acpi_resource *resource, void *context) + { + u32 i; + struct sony_pic_dev *dev = (struct sony_pic_dev *)context; + + switch (resource->type) { + case ACPI_RESOURCE_TYPE_START_DEPENDENT: + { + /* start IO enumeration */ + struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL); + if (!ioport) + return AE_ERROR; + + list_add(&ioport->list, &dev->ioports); + return AE_OK; + } + + case ACPI_RESOURCE_TYPE_END_DEPENDENT: + /* end IO enumeration */ + return AE_OK; + + case ACPI_RESOURCE_TYPE_IRQ: + { + struct acpi_resource_irq *p = &resource->data.irq; + struct sony_pic_irq *interrupt = NULL; + if (!p || !p->interrupt_count) { + /* + * IRQ descriptors may have no IRQ# bits set, + * particularly those those w/ _STA disabled + */ + dprintk("Blank IRQ resource\n"); + return AE_OK; + } + for (i = 0; i < p->interrupt_count; i++) { + if (!p->interrupts[i]) { + printk(KERN_WARNING DRV_PFX + "Invalid IRQ %d\n", + p->interrupts[i]); + continue; + } + interrupt = kzalloc(sizeof(*interrupt), + GFP_KERNEL); + if (!interrupt) + return AE_ERROR; + + list_add(&interrupt->list, &dev->interrupts); + interrupt->irq.triggering = p->triggering; + interrupt->irq.polarity = p->polarity; + interrupt->irq.sharable = p->sharable; + interrupt->irq.interrupt_count = 1; + interrupt->irq.interrupts[0] = p->interrupts[i]; + } + return AE_OK; + } + case ACPI_RESOURCE_TYPE_IO: + { + struct acpi_resource_io *io = &resource->data.io; + struct sony_pic_ioport *ioport = + list_first_entry(&dev->ioports, struct sony_pic_ioport, list); + if (!io) { + dprintk("Blank IO resource\n"); + return AE_OK; + } + + if (!ioport->io1.minimum) { + memcpy(&ioport->io1, io, sizeof(*io)); + dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum, + ioport->io1.address_length); + } + else if (!ioport->io2.minimum) { + memcpy(&ioport->io2, io, sizeof(*io)); + dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum, + ioport->io2.address_length); + } + else { + printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n"); + return AE_ERROR; + } + return AE_OK; + } + default: + dprintk("Resource %d isn't an IRQ nor an IO port\n", + resource->type); + + case ACPI_RESOURCE_TYPE_END_TAG: + return AE_OK; + } + return AE_CTRL_TERMINATE; + } + + static int sony_pic_possible_resources(struct acpi_device *device) + { + int result = 0; + acpi_status status = AE_OK; + + if (!device) + return -EINVAL; + + /* get device status */ + /* see acpi_pci_link_get_current acpi_pci_link_get_possible */ + dprintk("Evaluating _STA\n"); + result = acpi_bus_get_status(device); + if (result) { + printk(KERN_WARNING DRV_PFX "Unable to read status\n"); + goto end; + } + + if (!device->status.enabled) + dprintk("Device disabled\n"); + else + dprintk("Device enabled\n"); + + /* + * Query and parse 'method' + */ + dprintk("Evaluating %s\n", METHOD_NAME__PRS); + status = acpi_walk_resources(device->handle, METHOD_NAME__PRS, + sony_pic_read_possible_resource, &spic_dev); + if (ACPI_FAILURE(status)) { + printk(KERN_WARNING DRV_PFX + "Failure evaluating %s\n", + METHOD_NAME__PRS); + result = -ENODEV; + } + end: + return result; + } + + /* + * Disable the spic device by calling its _DIS method + */ + static int sony_pic_disable(struct acpi_device *device) + { + acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL, + NULL); + + if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND) + return -ENXIO; + + dprintk("Device disabled\n"); + return 0; + } + + + /* + * Based on drivers/acpi/pci_link.c:acpi_pci_link_set + * + * Call _SRS to set current resources + */ + static int sony_pic_enable(struct acpi_device *device, + struct sony_pic_ioport *ioport, struct sony_pic_irq *irq) + { + acpi_status status; + int result = 0; + /* Type 1 resource layout is: + * IO + * IO + * IRQNoFlags + * End + * + * Type 2 and 3 resource layout is: + * IO + * IRQNoFlags + * End + */ + struct { + struct acpi_resource res1; + struct acpi_resource res2; + struct acpi_resource res3; + struct acpi_resource res4; + } *resource; + struct acpi_buffer buffer = { 0, NULL }; + + if (!ioport || !irq) + return -EINVAL; + + /* init acpi_buffer */ + resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL); + if (!resource) + return -ENOMEM; + + buffer.length = sizeof(*resource) + 1; + buffer.pointer = resource; + + /* setup Type 1 resources */ + if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) { + + /* setup io resources */ + resource->res1.type = ACPI_RESOURCE_TYPE_IO; + resource->res1.length = sizeof(struct acpi_resource); + memcpy(&resource->res1.data.io, &ioport->io1, + sizeof(struct acpi_resource_io)); + + resource->res2.type = ACPI_RESOURCE_TYPE_IO; + resource->res2.length = sizeof(struct acpi_resource); + memcpy(&resource->res2.data.io, &ioport->io2, + sizeof(struct acpi_resource_io)); + + /* setup irq resource */ + resource->res3.type = ACPI_RESOURCE_TYPE_IRQ; + resource->res3.length = sizeof(struct acpi_resource); + memcpy(&resource->res3.data.irq, &irq->irq, + sizeof(struct acpi_resource_irq)); + /* we requested a shared irq */ + resource->res3.data.irq.sharable = ACPI_SHARED; + + resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG; + + } + /* setup Type 2/3 resources */ + else { + /* setup io resource */ + resource->res1.type = ACPI_RESOURCE_TYPE_IO; + resource->res1.length = sizeof(struct acpi_resource); + memcpy(&resource->res1.data.io, &ioport->io1, + sizeof(struct acpi_resource_io)); + + /* setup irq resource */ + resource->res2.type = ACPI_RESOURCE_TYPE_IRQ; + resource->res2.length = sizeof(struct acpi_resource); + memcpy(&resource->res2.data.irq, &irq->irq, + sizeof(struct acpi_resource_irq)); + /* we requested a shared irq */ + resource->res2.data.irq.sharable = ACPI_SHARED; + + resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG; + } + + /* Attempt to set the resource */ + dprintk("Evaluating _SRS\n"); + status = acpi_set_current_resources(device->handle, &buffer); + + /* check for total failure */ + if (ACPI_FAILURE(status)) { + printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n"); + result = -ENODEV; + goto end; + } + + /* Necessary device initializations calls (from sonypi) */ + sony_pic_call1(0x82); + sony_pic_call2(0x81, 0xff); + sony_pic_call1(compat ? 0x92 : 0x82); + + end: + kfree(resource); + return result; + } + + /***************** + * + * ISR: some event is available + * + *****************/ + static irqreturn_t sony_pic_irq(int irq, void *dev_id) + { + int i, j; + u8 ev = 0; + u8 data_mask = 0; + u8 device_event = 0; + + struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id; + + ev = inb_p(dev->cur_ioport->io1.minimum); + if (dev->cur_ioport->io2.minimum) + data_mask = inb_p(dev->cur_ioport->io2.minimum); + else + data_mask = inb_p(dev->cur_ioport->io1.minimum + + dev->control->evport_offset); + + dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n", + ev, data_mask, dev->cur_ioport->io1.minimum, + dev->control->evport_offset); + + if (ev == 0x00 || ev == 0xff) + return IRQ_HANDLED; + + for (i = 0; dev->control->event_types[i].mask; i++) { + + if ((data_mask & dev->control->event_types[i].data) != + dev->control->event_types[i].data) + continue; + + if (!(mask & dev->control->event_types[i].mask)) + continue; + + for (j = 0; dev->control->event_types[i].events[j].event; j++) { + if (ev == dev->control->event_types[i].events[j].data) { + device_event = + dev->control-> + event_types[i].events[j].event; + goto found; + } + } + } + /* Still not able to decode the event try to pass + * it over to the minidriver + */ + if (dev->control->handle_irq && + dev->control->handle_irq(data_mask, ev) == 0) + return IRQ_HANDLED; + + dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n", + ev, data_mask, dev->cur_ioport->io1.minimum, + dev->control->evport_offset); + return IRQ_HANDLED; + + found: + sony_laptop_report_input_event(device_event); + acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event); + sonypi_compat_report_event(device_event); + + return IRQ_HANDLED; + } + + /***************** + * + * ACPI driver + * + *****************/ + static int sony_pic_remove(struct acpi_device *device, int type) + { + struct sony_pic_ioport *io, *tmp_io; + struct sony_pic_irq *irq, *tmp_irq; + + if (sony_pic_disable(device)) { + printk(KERN_ERR DRV_PFX "Couldn't disable device.\n"); + return -ENXIO; + } + + free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev); + release_region(spic_dev.cur_ioport->io1.minimum, + spic_dev.cur_ioport->io1.address_length); + if (spic_dev.cur_ioport->io2.minimum) + release_region(spic_dev.cur_ioport->io2.minimum, + spic_dev.cur_ioport->io2.address_length); + + sonypi_compat_exit(); + + sony_laptop_remove_input(); + + /* pf attrs */ + sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group); + sony_pf_remove(); + + list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) { + list_del(&io->list); + kfree(io); + } + list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) { + list_del(&irq->list); + kfree(irq); + } + spic_dev.cur_ioport = NULL; + spic_dev.cur_irq = NULL; + + dprintk(SONY_PIC_DRIVER_NAME " removed.\n"); + return 0; + } + + static int sony_pic_add(struct acpi_device *device) + { + int result; + struct sony_pic_ioport *io, *tmp_io; + struct sony_pic_irq *irq, *tmp_irq; + + printk(KERN_INFO DRV_PFX "%s v%s.\n", + SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION); + + spic_dev.acpi_dev = device; + strcpy(acpi_device_class(device), "sony/hotkey"); + sony_pic_detect_device_type(&spic_dev); + mutex_init(&spic_dev.lock); + + /* read _PRS resources */ + result = sony_pic_possible_resources(device); + if (result) { + printk(KERN_ERR DRV_PFX + "Unabe to read possible resources.\n"); + goto err_free_resources; + } + + /* setup input devices and helper fifo */ + result = sony_laptop_setup_input(device); + if (result) { + printk(KERN_ERR DRV_PFX + "Unabe to create input devices.\n"); + goto err_free_resources; + } + + if (sonypi_compat_init()) + goto err_remove_input; + + /* request io port */ + list_for_each_entry_reverse(io, &spic_dev.ioports, list) { + if (request_region(io->io1.minimum, io->io1.address_length, + "Sony Programable I/O Device")) { + dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n", + io->io1.minimum, io->io1.maximum, + io->io1.address_length); + /* Type 1 have 2 ioports */ + if (io->io2.minimum) { + if (request_region(io->io2.minimum, + io->io2.address_length, + "Sony Programable I/O Device")) { + dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n", + io->io2.minimum, io->io2.maximum, + io->io2.address_length); + spic_dev.cur_ioport = io; + break; + } + else { + dprintk("Unable to get I/O port2: " + "0x%.4x (0x%.4x) + 0x%.2x\n", + io->io2.minimum, io->io2.maximum, + io->io2.address_length); + release_region(io->io1.minimum, + io->io1.address_length); + } + } + else { + spic_dev.cur_ioport = io; + break; + } + } + } + if (!spic_dev.cur_ioport) { + printk(KERN_ERR DRV_PFX "Failed to request_region.\n"); + result = -ENODEV; + goto err_remove_compat; + } + + /* request IRQ */ + list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) { + if (!request_irq(irq->irq.interrupts[0], sony_pic_irq, + IRQF_SHARED, "sony-laptop", &spic_dev)) { + dprintk("IRQ: %d - triggering: %d - " + "polarity: %d - shr: %d\n", + irq->irq.interrupts[0], + irq->irq.triggering, + irq->irq.polarity, + irq->irq.sharable); + spic_dev.cur_irq = irq; + break; + } + } + if (!spic_dev.cur_irq) { + printk(KERN_ERR DRV_PFX "Failed to request_irq.\n"); + result = -ENODEV; + goto err_release_region; + } + + /* set resource status _SRS */ + result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq); + if (result) { + printk(KERN_ERR DRV_PFX "Couldn't enable device.\n"); + goto err_free_irq; + } + + spic_dev.bluetooth_power = -1; + /* create device attributes */ + result = sony_pf_add(); + if (result) + goto err_disable_device; + + result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group); + if (result) + goto err_remove_pf; + + return 0; + + err_remove_pf: + sony_pf_remove(); + + err_disable_device: + sony_pic_disable(device); + + err_free_irq: + free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev); + + err_release_region: + release_region(spic_dev.cur_ioport->io1.minimum, + spic_dev.cur_ioport->io1.address_length); + if (spic_dev.cur_ioport->io2.minimum) + release_region(spic_dev.cur_ioport->io2.minimum, + spic_dev.cur_ioport->io2.address_length); + + err_remove_compat: + sonypi_compat_exit(); + + err_remove_input: + sony_laptop_remove_input(); + + err_free_resources: + list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) { + list_del(&io->list); + kfree(io); + } + list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) { + list_del(&irq->list); + kfree(irq); + } + spic_dev.cur_ioport = NULL; + spic_dev.cur_irq = NULL; + + return result; + } + + static int sony_pic_suspend(struct acpi_device *device, pm_message_t state) + { + if (sony_pic_disable(device)) + return -ENXIO; + return 0; + } + + static int sony_pic_resume(struct acpi_device *device) + { + sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq); + return 0; + } + + static const struct acpi_device_id sony_pic_device_ids[] = { + {SONY_PIC_HID, 0}, + {"", 0}, + }; + + static struct acpi_driver sony_pic_driver = { + .name = SONY_PIC_DRIVER_NAME, + .class = SONY_PIC_CLASS, + .ids = sony_pic_device_ids, + .owner = THIS_MODULE, + .ops = { + .add = sony_pic_add, + .remove = sony_pic_remove, + .suspend = sony_pic_suspend, + .resume = sony_pic_resume, + }, + }; + + static struct dmi_system_id __initdata sonypi_dmi_table[] = { + { + .ident = "Sony Vaio", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"), + }, + }, + { + .ident = "Sony Vaio", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"), + }, + }, + { } + }; + + static int __init sony_laptop_init(void) + { + int result; + + if (!no_spic && dmi_check_system(sonypi_dmi_table)) { + result = acpi_bus_register_driver(&sony_pic_driver); + if (result) { + printk(KERN_ERR DRV_PFX + "Unable to register SPIC driver."); + goto out; + } + } + + result = acpi_bus_register_driver(&sony_nc_driver); + if (result) { + printk(KERN_ERR DRV_PFX "Unable to register SNC driver."); + goto out_unregister_pic; + } + + return 0; + + out_unregister_pic: + if (!no_spic) + acpi_bus_unregister_driver(&sony_pic_driver); + out: + return result; + } + + static void __exit sony_laptop_exit(void) + { + acpi_bus_unregister_driver(&sony_nc_driver); + if (!no_spic) + acpi_bus_unregister_driver(&sony_pic_driver); + } + + module_init(sony_laptop_init); + module_exit(sony_laptop_exit); diff --cc drivers/platform/x86/tc1100-wmi.c index 000000000000,f25e4c974dcf..b4a4aa9ee482 mode 000000,100644..100644 --- a/drivers/platform/x86/tc1100-wmi.c +++ b/drivers/platform/x86/tc1100-wmi.c @@@ -1,0 -1,290 +1,289 @@@ + /* + * HP Compaq TC1100 Tablet WMI Extras Driver + * + * Copyright (C) 2007 Carlos Corbacho + * Copyright (C) 2004 Jamey Hicks + * Copyright (C) 2001, 2002 Andy Grover + * Copyright (C) 2001, 2002 Paul Diefenbaugh + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + + #include + #include + #include + #include + #include -#include + #include + #include + #include + + #define GUID "C364AC71-36DB-495A-8494-B439D472A505" + + #define TC1100_INSTANCE_WIRELESS 1 + #define TC1100_INSTANCE_JOGDIAL 2 + + #define TC1100_LOGPREFIX "tc1100-wmi: " + #define TC1100_INFO KERN_INFO TC1100_LOGPREFIX + + MODULE_AUTHOR("Jamey Hicks, Carlos Corbacho"); + MODULE_DESCRIPTION("HP Compaq TC1100 Tablet WMI Extras"); + MODULE_LICENSE("GPL"); + MODULE_ALIAS("wmi:C364AC71-36DB-495A-8494-B439D472A505"); + + static int tc1100_probe(struct platform_device *device); + static int tc1100_remove(struct platform_device *device); + static int tc1100_suspend(struct platform_device *device, pm_message_t state); + static int tc1100_resume(struct platform_device *device); + + static struct platform_driver tc1100_driver = { + .driver = { + .name = "tc1100-wmi", + .owner = THIS_MODULE, + }, + .probe = tc1100_probe, + .remove = tc1100_remove, + .suspend = tc1100_suspend, + .resume = tc1100_resume, + }; + + static struct platform_device *tc1100_device; + + struct tc1100_data { + u32 wireless; + u32 jogdial; + }; + + static struct tc1100_data suspend_data; + + /* -------------------------------------------------------------------------- + Device Management + -------------------------------------------------------------------------- */ + + static int get_state(u32 *out, u8 instance) + { + u32 tmp; + acpi_status status; + struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; + + if (!out) + return -EINVAL; + + if (instance > 2) + return -ENODEV; + + status = wmi_query_block(GUID, instance, &result); + if (ACPI_FAILURE(status)) + return -ENODEV; + + obj = (union acpi_object *) result.pointer; + if (obj && obj->type == ACPI_TYPE_BUFFER && + obj->buffer.length == sizeof(u32)) { + tmp = *((u32 *) obj->buffer.pointer); + } else { + tmp = 0; + } + + if (result.length > 0 && result.pointer) + kfree(result.pointer); + + switch (instance) { + case TC1100_INSTANCE_WIRELESS: + *out = (tmp == 3) ? 1 : 0; + return 0; + case TC1100_INSTANCE_JOGDIAL: + *out = (tmp == 1) ? 1 : 0; + return 0; + default: + return -ENODEV; + } + } + + static int set_state(u32 *in, u8 instance) + { + u32 value; + acpi_status status; + struct acpi_buffer input; + + if (!in) + return -EINVAL; + + if (instance > 2) + return -ENODEV; + + switch (instance) { + case TC1100_INSTANCE_WIRELESS: + value = (*in) ? 1 : 2; + break; + case TC1100_INSTANCE_JOGDIAL: + value = (*in) ? 0 : 1; + break; + default: + return -ENODEV; + } + + input.length = sizeof(u32); + input.pointer = &value; + + status = wmi_set_block(GUID, instance, &input); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return 0; + } + + /* -------------------------------------------------------------------------- + FS Interface (/sys) + -------------------------------------------------------------------------- */ + + /* + * Read/ write bool sysfs macro + */ + #define show_set_bool(value, instance) \ + static ssize_t \ + show_bool_##value(struct device *dev, struct device_attribute *attr, \ + char *buf) \ + { \ + u32 result; \ + acpi_status status = get_state(&result, instance); \ + if (ACPI_SUCCESS(status)) \ + return sprintf(buf, "%d\n", result); \ + return sprintf(buf, "Read error\n"); \ + } \ + \ + static ssize_t \ + set_bool_##value(struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ + { \ + u32 tmp = simple_strtoul(buf, NULL, 10); \ + acpi_status status = set_state(&tmp, instance); \ + if (ACPI_FAILURE(status)) \ + return -EINVAL; \ + return count; \ + } \ + static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \ + show_bool_##value, set_bool_##value); + + show_set_bool(wireless, TC1100_INSTANCE_WIRELESS); + show_set_bool(jogdial, TC1100_INSTANCE_JOGDIAL); + + static void remove_fs(void) + { + device_remove_file(&tc1100_device->dev, &dev_attr_wireless); + device_remove_file(&tc1100_device->dev, &dev_attr_jogdial); + } + + static int add_fs(void) + { + int ret; + + ret = device_create_file(&tc1100_device->dev, &dev_attr_wireless); + if (ret) + goto add_sysfs_error; + + ret = device_create_file(&tc1100_device->dev, &dev_attr_jogdial); + if (ret) + goto add_sysfs_error; + + return ret; + + add_sysfs_error: + remove_fs(); + return ret; + } + + /* -------------------------------------------------------------------------- + Driver Model + -------------------------------------------------------------------------- */ + + static int tc1100_probe(struct platform_device *device) + { + int result = 0; + + result = add_fs(); + return result; + } + + + static int tc1100_remove(struct platform_device *device) + { + remove_fs(); + return 0; + } + + static int tc1100_suspend(struct platform_device *dev, pm_message_t state) + { + int ret; + + ret = get_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS); + if (ret) + return ret; + + ret = get_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL); + if (ret) + return ret; + + return ret; + } + + static int tc1100_resume(struct platform_device *dev) + { + int ret; + + ret = set_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS); + if (ret) + return ret; + + ret = set_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL); + if (ret) + return ret; + + return ret; + } + + static int __init tc1100_init(void) + { + int result = 0; + + if (!wmi_has_guid(GUID)) + return -ENODEV; + + result = platform_driver_register(&tc1100_driver); + if (result) + return result; + + tc1100_device = platform_device_alloc("tc1100-wmi", -1); + platform_device_add(tc1100_device); + + printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras loaded\n"); + + return result; + } + + static void __exit tc1100_exit(void) + { + platform_device_del(tc1100_device); + platform_driver_unregister(&tc1100_driver); + + printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras unloaded\n"); + } + + module_init(tc1100_init); + module_exit(tc1100_exit); diff --cc drivers/platform/x86/thinkpad_acpi.c index 000000000000,899766e16fa8..3478453eba7a mode 000000,100644..100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@@ -1,0 -1,6949 +1,6948 @@@ + /* + * thinkpad_acpi.c - ThinkPad ACPI Extras + * + * + * Copyright (C) 2004-2005 Borislav Deianov + * Copyright (C) 2006-2008 Henrique de Moraes Holschuh + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + + #define TPACPI_VERSION "0.21" + #define TPACPI_SYSFS_VERSION 0x020200 + + /* + * Changelog: + * 2007-10-20 changelog trimmed down + * + * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to + * drivers/misc. + * + * 2006-11-22 0.13 new maintainer + * changelog now lives in git commit history, and will + * not be updated further in-file. + * + * 2005-03-17 0.11 support for 600e, 770x + * thanks to Jamie Lentin + * + * 2005-01-16 0.9 use MODULE_VERSION + * thanks to Henrik Brix Andersen + * fix parameter passing on module loading + * thanks to Rusty Russell + * thanks to Jim Radford + * 2004-11-08 0.8 fix init error case, don't return from a macro + * thanks to Chris Wright + */ + + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + #include + + #include + #include + #include + + #include -#include + + #include + + + /* ThinkPad CMOS commands */ + #define TP_CMOS_VOLUME_DOWN 0 + #define TP_CMOS_VOLUME_UP 1 + #define TP_CMOS_VOLUME_MUTE 2 + #define TP_CMOS_BRIGHTNESS_UP 4 + #define TP_CMOS_BRIGHTNESS_DOWN 5 + #define TP_CMOS_THINKLIGHT_ON 12 + #define TP_CMOS_THINKLIGHT_OFF 13 + + /* NVRAM Addresses */ + enum tp_nvram_addr { + TP_NVRAM_ADDR_HK2 = 0x57, + TP_NVRAM_ADDR_THINKLIGHT = 0x58, + TP_NVRAM_ADDR_VIDEO = 0x59, + TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, + TP_NVRAM_ADDR_MIXER = 0x60, + }; + + /* NVRAM bit masks */ + enum { + TP_NVRAM_MASK_HKT_THINKPAD = 0x08, + TP_NVRAM_MASK_HKT_ZOOM = 0x20, + TP_NVRAM_MASK_HKT_DISPLAY = 0x40, + TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, + TP_NVRAM_MASK_THINKLIGHT = 0x10, + TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, + TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, + TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, + TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, + TP_NVRAM_MASK_MUTE = 0x40, + TP_NVRAM_MASK_HKT_VOLUME = 0x80, + TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, + TP_NVRAM_POS_LEVEL_VOLUME = 0, + }; + + /* ACPI HIDs */ + #define TPACPI_ACPI_HKEY_HID "IBM0068" + + /* Input IDs */ + #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ + #define TPACPI_HKEY_INPUT_VERSION 0x4101 + + + /**************************************************************************** + * Main driver + */ + + #define TPACPI_NAME "thinkpad" + #define TPACPI_DESC "ThinkPad ACPI Extras" + #define TPACPI_FILE TPACPI_NAME "_acpi" + #define TPACPI_URL "http://ibm-acpi.sf.net/" + #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" + + #define TPACPI_PROC_DIR "ibm" + #define TPACPI_ACPI_EVENT_PREFIX "ibm" + #define TPACPI_DRVR_NAME TPACPI_FILE + #define TPACPI_DRVR_SHORTNAME "tpacpi" + #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" + + #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" + #define TPACPI_WORKQUEUE_NAME "ktpacpid" + + #define TPACPI_MAX_ACPI_ARGS 3 + + /* rfkill switches */ + enum { + TPACPI_RFK_BLUETOOTH_SW_ID = 0, + TPACPI_RFK_WWAN_SW_ID, + }; + + /* Debugging */ + #define TPACPI_LOG TPACPI_FILE ": " + #define TPACPI_ERR KERN_ERR TPACPI_LOG + #define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG + #define TPACPI_INFO KERN_INFO TPACPI_LOG + #define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG + + #define TPACPI_DBG_ALL 0xffff + #define TPACPI_DBG_INIT 0x0001 + #define TPACPI_DBG_EXIT 0x0002 + #define dbg_printk(a_dbg_level, format, arg...) \ + do { if (dbg_level & a_dbg_level) \ + printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ + } while (0) + #ifdef CONFIG_THINKPAD_ACPI_DEBUG + #define vdbg_printk(a_dbg_level, format, arg...) \ + dbg_printk(a_dbg_level, format, ## arg) + static const char *str_supported(int is_supported); + #else + #define vdbg_printk(a_dbg_level, format, arg...) + #endif + + #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") + #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") + #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) + + + /**************************************************************************** + * Driver-wide structs and misc. variables + */ + + struct ibm_struct; + + struct tp_acpi_drv_struct { + const struct acpi_device_id *hid; + struct acpi_driver *driver; + + void (*notify) (struct ibm_struct *, u32); + acpi_handle *handle; + u32 type; + struct acpi_device *device; + }; + + struct ibm_struct { + char *name; + + int (*read) (char *); + int (*write) (char *); + void (*exit) (void); + void (*resume) (void); + void (*suspend) (pm_message_t state); + + struct list_head all_drivers; + + struct tp_acpi_drv_struct *acpi; + + struct { + u8 acpi_driver_registered:1; + u8 acpi_notify_installed:1; + u8 proc_created:1; + u8 init_called:1; + u8 experimental:1; + } flags; + }; + + struct ibm_init_struct { + char param[32]; + + int (*init) (struct ibm_init_struct *); + struct ibm_struct *data; + }; + + static struct { + #ifdef CONFIG_THINKPAD_ACPI_BAY + u32 bay_status:1; + u32 bay_eject:1; + u32 bay_status2:1; + u32 bay_eject2:1; + #endif + u32 bluetooth:1; + u32 hotkey:1; + u32 hotkey_mask:1; + u32 hotkey_wlsw:1; + u32 hotkey_tablet:1; + u32 light:1; + u32 light_status:1; + u32 bright_16levels:1; + u32 bright_acpimode:1; + u32 wan:1; + u32 fan_ctrl_status_undef:1; + u32 input_device_registered:1; + u32 platform_drv_registered:1; + u32 platform_drv_attrs_registered:1; + u32 sensors_pdrv_registered:1; + u32 sensors_pdrv_attrs_registered:1; + u32 sensors_pdev_attrs_registered:1; + u32 hotkey_poll_active:1; + } tp_features; + + static struct { + u16 hotkey_mask_ff:1; + u16 bright_cmos_ec_unsync:1; + } tp_warned; + + struct thinkpad_id_data { + unsigned int vendor; /* ThinkPad vendor: + * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ + + char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ + char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ + + u16 bios_model; /* Big Endian, TP-1Y = 0x5931, 0 = unknown */ + u16 ec_model; + + char *model_str; /* ThinkPad T43 */ + char *nummodel_str; /* 9384A9C for a 9384-A9C model */ + }; + static struct thinkpad_id_data thinkpad_id; + + static enum { + TPACPI_LIFE_INIT = 0, + TPACPI_LIFE_RUNNING, + TPACPI_LIFE_EXITING, + } tpacpi_lifecycle; + + static int experimental; + static u32 dbg_level; + + static struct workqueue_struct *tpacpi_wq; + + /* Special LED class that can defer work */ + struct tpacpi_led_classdev { + struct led_classdev led_classdev; + struct work_struct work; + enum led_brightness new_brightness; + unsigned int led; + }; + + /**************************************************************************** + **************************************************************************** + * + * ACPI Helpers and device model + * + **************************************************************************** + ****************************************************************************/ + + /************************************************************************* + * ACPI basic handles + */ + + static acpi_handle root_handle; + + #define TPACPI_HANDLE(object, parent, paths...) \ + static acpi_handle object##_handle; \ + static acpi_handle *object##_parent = &parent##_handle; \ + static char *object##_path; \ + static char *object##_paths[] = { paths } + + TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */ + "\\_SB.PCI.ISA.EC", /* 570 */ + "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */ + "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */ + "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */ + "\\_SB.PCI0.ICH3.EC0", /* R31 */ + "\\_SB.PCI0.LPC.EC", /* all others */ + ); + + TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ + TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ + + TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ + /* T4x, X31, X40 */ + "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ + "\\CMS", /* R40, R40e */ + ); /* all others */ + + TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ + "^HKEY", /* R30, R31 */ + "HKEY", /* all others */ + ); /* 570 */ + + TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ + "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ + "\\_SB.PCI0.VID0", /* 770e */ + "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ + "\\_SB.PCI0.AGP.VID", /* all others */ + ); /* R30, R31 */ + + + /************************************************************************* + * ACPI helpers + */ + + static int acpi_evalf(acpi_handle handle, + void *res, char *method, char *fmt, ...) + { + char *fmt0 = fmt; + struct acpi_object_list params; + union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; + struct acpi_buffer result, *resultp; + union acpi_object out_obj; + acpi_status status; + va_list ap; + char res_type; + int success; + int quiet; + + if (!*fmt) { + printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); + return 0; + } + + if (*fmt == 'q') { + quiet = 1; + fmt++; + } else + quiet = 0; + + res_type = *(fmt++); + + params.count = 0; + params.pointer = &in_objs[0]; + + va_start(ap, fmt); + while (*fmt) { + char c = *(fmt++); + switch (c) { + case 'd': /* int */ + in_objs[params.count].integer.value = va_arg(ap, int); + in_objs[params.count++].type = ACPI_TYPE_INTEGER; + break; + /* add more types as needed */ + default: + printk(TPACPI_ERR "acpi_evalf() called " + "with invalid format character '%c'\n", c); + return 0; + } + } + va_end(ap); + + if (res_type != 'v') { + result.length = sizeof(out_obj); + result.pointer = &out_obj; + resultp = &result; + } else + resultp = NULL; + + status = acpi_evaluate_object(handle, method, ¶ms, resultp); + + switch (res_type) { + case 'd': /* int */ + if (res) + *(int *)res = out_obj.integer.value; + success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER; + break; + case 'v': /* void */ + success = status == AE_OK; + break; + /* add more types as needed */ + default: + printk(TPACPI_ERR "acpi_evalf() called " + "with invalid format character '%c'\n", res_type); + return 0; + } + + if (!success && !quiet) + printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n", + method, fmt0, status); + + return success; + } + + static int acpi_ec_read(int i, u8 *p) + { + int v; + + if (ecrd_handle) { + if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) + return 0; + *p = v; + } else { + if (ec_read(i, p) < 0) + return 0; + } + + return 1; + } + + static int acpi_ec_write(int i, u8 v) + { + if (ecwr_handle) { + if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) + return 0; + } else { + if (ec_write(i, v) < 0) + return 0; + } + + return 1; + } + + #if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY) + static int _sta(acpi_handle handle) + { + int status; + + if (!handle || !acpi_evalf(handle, &status, "_STA", "d")) + status = 0; + + return status; + } + #endif + + static int issue_thinkpad_cmos_command(int cmos_cmd) + { + if (!cmos_handle) + return -ENXIO; + + if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) + return -EIO; + + return 0; + } + + /************************************************************************* + * ACPI device model + */ + + #define TPACPI_ACPIHANDLE_INIT(object) \ + drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ + object##_paths, ARRAY_SIZE(object##_paths), &object##_path) + + static void drv_acpi_handle_init(char *name, + acpi_handle *handle, acpi_handle parent, + char **paths, int num_paths, char **path) + { + int i; + acpi_status status; + + vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", + name); + + for (i = 0; i < num_paths; i++) { + status = acpi_get_handle(parent, paths[i], handle); + if (ACPI_SUCCESS(status)) { + *path = paths[i]; + dbg_printk(TPACPI_DBG_INIT, + "Found ACPI handle %s for %s\n", + *path, name); + return; + } + } + + vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", + name); + *handle = NULL; + } + + static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) + { + struct ibm_struct *ibm = data; + + if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) + return; + + if (!ibm || !ibm->acpi || !ibm->acpi->notify) + return; + + ibm->acpi->notify(ibm, event); + } + + static int __init setup_acpi_notify(struct ibm_struct *ibm) + { + acpi_status status; + int rc; + + BUG_ON(!ibm->acpi); + + if (!*ibm->acpi->handle) + return 0; + + vdbg_printk(TPACPI_DBG_INIT, + "setting up ACPI notify for %s\n", ibm->name); + + rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); + if (rc < 0) { + printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", + ibm->name, rc); + return -ENODEV; + } + + ibm->acpi->device->driver_data = ibm; + sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", + TPACPI_ACPI_EVENT_PREFIX, + ibm->name); + + status = acpi_install_notify_handler(*ibm->acpi->handle, + ibm->acpi->type, dispatch_acpi_notify, ibm); + if (ACPI_FAILURE(status)) { + if (status == AE_ALREADY_EXISTS) { + printk(TPACPI_NOTICE + "another device driver is already " + "handling %s events\n", ibm->name); + } else { + printk(TPACPI_ERR + "acpi_install_notify_handler(%s) failed: %d\n", + ibm->name, status); + } + return -ENODEV; + } + ibm->flags.acpi_notify_installed = 1; + return 0; + } + + static int __init tpacpi_device_add(struct acpi_device *device) + { + return 0; + } + + static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) + { + int rc; + + dbg_printk(TPACPI_DBG_INIT, + "registering %s as an ACPI driver\n", ibm->name); + + BUG_ON(!ibm->acpi); + + ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); + if (!ibm->acpi->driver) { + printk(TPACPI_ERR + "failed to allocate memory for ibm->acpi->driver\n"); + return -ENOMEM; + } + + sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); + ibm->acpi->driver->ids = ibm->acpi->hid; + + ibm->acpi->driver->ops.add = &tpacpi_device_add; + + rc = acpi_bus_register_driver(ibm->acpi->driver); + if (rc < 0) { + printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", + ibm->name, rc); + kfree(ibm->acpi->driver); + ibm->acpi->driver = NULL; + } else if (!rc) + ibm->flags.acpi_driver_registered = 1; + + return rc; + } + + + /**************************************************************************** + **************************************************************************** + * + * Procfs Helpers + * + **************************************************************************** + ****************************************************************************/ + + static int dispatch_procfs_read(char *page, char **start, off_t off, + int count, int *eof, void *data) + { + struct ibm_struct *ibm = data; + int len; + + if (!ibm || !ibm->read) + return -EINVAL; + + len = ibm->read(page); + if (len < 0) + return len; + + if (len <= off + count) + *eof = 1; + *start = page + off; + len -= off; + if (len > count) + len = count; + if (len < 0) + len = 0; + + return len; + } + + static int dispatch_procfs_write(struct file *file, + const char __user *userbuf, + unsigned long count, void *data) + { + struct ibm_struct *ibm = data; + char *kernbuf; + int ret; + + if (!ibm || !ibm->write) + return -EINVAL; + + kernbuf = kmalloc(count + 2, GFP_KERNEL); + if (!kernbuf) + return -ENOMEM; + + if (copy_from_user(kernbuf, userbuf, count)) { + kfree(kernbuf); + return -EFAULT; + } + + kernbuf[count] = 0; + strcat(kernbuf, ","); + ret = ibm->write(kernbuf); + if (ret == 0) + ret = count; + + kfree(kernbuf); + + return ret; + } + + static char *next_cmd(char **cmds) + { + char *start = *cmds; + char *end; + + while ((end = strchr(start, ',')) && end == start) + start = end + 1; + + if (!end) + return NULL; + + *end = 0; + *cmds = end + 1; + return start; + } + + + /**************************************************************************** + **************************************************************************** + * + * Device model: input, hwmon and platform + * + **************************************************************************** + ****************************************************************************/ + + static struct platform_device *tpacpi_pdev; + static struct platform_device *tpacpi_sensors_pdev; + static struct device *tpacpi_hwmon; + static struct input_dev *tpacpi_inputdev; + static struct mutex tpacpi_inputdev_send_mutex; + static LIST_HEAD(tpacpi_all_drivers); + + static int tpacpi_suspend_handler(struct platform_device *pdev, + pm_message_t state) + { + struct ibm_struct *ibm, *itmp; + + list_for_each_entry_safe(ibm, itmp, + &tpacpi_all_drivers, + all_drivers) { + if (ibm->suspend) + (ibm->suspend)(state); + } + + return 0; + } + + static int tpacpi_resume_handler(struct platform_device *pdev) + { + struct ibm_struct *ibm, *itmp; + + list_for_each_entry_safe(ibm, itmp, + &tpacpi_all_drivers, + all_drivers) { + if (ibm->resume) + (ibm->resume)(); + } + + return 0; + } + + static struct platform_driver tpacpi_pdriver = { + .driver = { + .name = TPACPI_DRVR_NAME, + .owner = THIS_MODULE, + }, + .suspend = tpacpi_suspend_handler, + .resume = tpacpi_resume_handler, + }; + + static struct platform_driver tpacpi_hwmon_pdriver = { + .driver = { + .name = TPACPI_HWMON_DRVR_NAME, + .owner = THIS_MODULE, + }, + }; + + /************************************************************************* + * sysfs support helpers + */ + + struct attribute_set { + unsigned int members, max_members; + struct attribute_group group; + }; + + struct attribute_set_obj { + struct attribute_set s; + struct attribute *a; + } __attribute__((packed)); + + static struct attribute_set *create_attr_set(unsigned int max_members, + const char *name) + { + struct attribute_set_obj *sobj; + + if (max_members == 0) + return NULL; + + /* Allocates space for implicit NULL at the end too */ + sobj = kzalloc(sizeof(struct attribute_set_obj) + + max_members * sizeof(struct attribute *), + GFP_KERNEL); + if (!sobj) + return NULL; + sobj->s.max_members = max_members; + sobj->s.group.attrs = &sobj->a; + sobj->s.group.name = name; + + return &sobj->s; + } + + #define destroy_attr_set(_set) \ + kfree(_set); + + /* not multi-threaded safe, use it in a single thread per set */ + static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) + { + if (!s || !attr) + return -EINVAL; + + if (s->members >= s->max_members) + return -ENOMEM; + + s->group.attrs[s->members] = attr; + s->members++; + + return 0; + } + + static int add_many_to_attr_set(struct attribute_set *s, + struct attribute **attr, + unsigned int count) + { + int i, res; + + for (i = 0; i < count; i++) { + res = add_to_attr_set(s, attr[i]); + if (res) + return res; + } + + return 0; + } + + static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) + { + sysfs_remove_group(kobj, &s->group); + destroy_attr_set(s); + } + + #define register_attr_set_with_sysfs(_attr_set, _kobj) \ + sysfs_create_group(_kobj, &_attr_set->group) + + static int parse_strtoul(const char *buf, + unsigned long max, unsigned long *value) + { + char *endp; + + while (*buf && isspace(*buf)) + buf++; + *value = simple_strtoul(buf, &endp, 0); + while (*endp && isspace(*endp)) + endp++; + if (*endp || *value > max) + return -EINVAL; + + return 0; + } + + static void tpacpi_disable_brightness_delay(void) + { + if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) + printk(TPACPI_NOTICE + "ACPI backlight control delay disabled\n"); + } + + static int __init tpacpi_query_bcl_levels(acpi_handle handle) + { + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; + int rc; + + if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) { + obj = (union acpi_object *)buffer.pointer; + if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { + printk(TPACPI_ERR "Unknown _BCL data, " + "please report this to %s\n", TPACPI_MAIL); + rc = 0; + } else { + rc = obj->package.count; + } + } else { + return 0; + } + + kfree(buffer.pointer); + return rc; + } + + static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle, + u32 lvl, void *context, void **rv) + { + char name[ACPI_PATH_SEGMENT_LENGTH]; + struct acpi_buffer buffer = { sizeof(name), &name }; + + if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) && + !strncmp("_BCL", name, sizeof(name) - 1)) { + BUG_ON(!rv || !*rv); + **(int **)rv = tpacpi_query_bcl_levels(handle); + return AE_CTRL_TERMINATE; + } else { + return AE_OK; + } + } + + /* + * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map + */ + static int __init tpacpi_check_std_acpi_brightness_support(void) + { + int status; + int bcl_levels = 0; + void *bcl_ptr = &bcl_levels; + + if (!vid_handle) { + TPACPI_ACPIHANDLE_INIT(vid); + } + if (!vid_handle) + return 0; + + /* + * Search for a _BCL method, and execute it. This is safe on all + * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista + * BIOS in ACPI backlight control mode. We do NOT have to care + * about calling the _BCL method in an enabled video device, any + * will do for our purposes. + */ + + status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3, + tpacpi_acpi_walk_find_bcl, NULL, + &bcl_ptr); + + if (ACPI_SUCCESS(status) && bcl_levels > 2) { + tp_features.bright_acpimode = 1; + return (bcl_levels - 2); + } + + return 0; + } + + static int __init tpacpi_new_rfkill(const unsigned int id, + struct rfkill **rfk, + const enum rfkill_type rfktype, + const char *name, + int (*toggle_radio)(void *, enum rfkill_state), + int (*get_state)(void *, enum rfkill_state *)) + { + int res; + enum rfkill_state initial_state; + + *rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype); + if (!*rfk) { + printk(TPACPI_ERR + "failed to allocate memory for rfkill class\n"); + return -ENOMEM; + } + + (*rfk)->name = name; + (*rfk)->get_state = get_state; + (*rfk)->toggle_radio = toggle_radio; + + if (!get_state(NULL, &initial_state)) + (*rfk)->state = initial_state; + + res = rfkill_register(*rfk); + if (res < 0) { + printk(TPACPI_ERR + "failed to register %s rfkill switch: %d\n", + name, res); + rfkill_free(*rfk); + *rfk = NULL; + return res; + } + + return 0; + } + + /************************************************************************* + * thinkpad-acpi driver attributes + */ + + /* interface_version --------------------------------------------------- */ + static ssize_t tpacpi_driver_interface_version_show( + struct device_driver *drv, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); + } + + static DRIVER_ATTR(interface_version, S_IRUGO, + tpacpi_driver_interface_version_show, NULL); + + /* debug_level --------------------------------------------------------- */ + static ssize_t tpacpi_driver_debug_show(struct device_driver *drv, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); + } + + static ssize_t tpacpi_driver_debug_store(struct device_driver *drv, + const char *buf, size_t count) + { + unsigned long t; + + if (parse_strtoul(buf, 0xffff, &t)) + return -EINVAL; + + dbg_level = t; + + return count; + } + + static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, + tpacpi_driver_debug_show, tpacpi_driver_debug_store); + + /* version ------------------------------------------------------------- */ + static ssize_t tpacpi_driver_version_show(struct device_driver *drv, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "%s v%s\n", + TPACPI_DESC, TPACPI_VERSION); + } + + static DRIVER_ATTR(version, S_IRUGO, + tpacpi_driver_version_show, NULL); + + /* --------------------------------------------------------------------- */ + + static struct driver_attribute *tpacpi_driver_attributes[] = { + &driver_attr_debug_level, &driver_attr_version, + &driver_attr_interface_version, + }; + + static int __init tpacpi_create_driver_attributes(struct device_driver *drv) + { + int i, res; + + i = 0; + res = 0; + while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { + res = driver_create_file(drv, tpacpi_driver_attributes[i]); + i++; + } + + return res; + } + + static void tpacpi_remove_driver_attributes(struct device_driver *drv) + { + int i; + + for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) + driver_remove_file(drv, tpacpi_driver_attributes[i]); + } + + /**************************************************************************** + **************************************************************************** + * + * Subdrivers + * + **************************************************************************** + ****************************************************************************/ + + /************************************************************************* + * thinkpad-acpi init subdriver + */ + + static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm) + { + printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); + printk(TPACPI_INFO "%s\n", TPACPI_URL); + + printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", + (thinkpad_id.bios_version_str) ? + thinkpad_id.bios_version_str : "unknown", + (thinkpad_id.ec_version_str) ? + thinkpad_id.ec_version_str : "unknown"); + + if (thinkpad_id.vendor && thinkpad_id.model_str) + printk(TPACPI_INFO "%s %s, model %s\n", + (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? + "IBM" : ((thinkpad_id.vendor == + PCI_VENDOR_ID_LENOVO) ? + "Lenovo" : "Unknown vendor"), + thinkpad_id.model_str, + (thinkpad_id.nummodel_str) ? + thinkpad_id.nummodel_str : "unknown"); + + return 0; + } + + static int thinkpad_acpi_driver_read(char *p) + { + int len = 0; + + len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC); + len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION); + + return len; + } + + static struct ibm_struct thinkpad_acpi_driver_data = { + .name = "driver", + .read = thinkpad_acpi_driver_read, + }; + + /************************************************************************* + * Hotkey subdriver + */ + + enum { /* hot key scan codes (derived from ACPI DSDT) */ + TP_ACPI_HOTKEYSCAN_FNF1 = 0, + TP_ACPI_HOTKEYSCAN_FNF2, + TP_ACPI_HOTKEYSCAN_FNF3, + TP_ACPI_HOTKEYSCAN_FNF4, + TP_ACPI_HOTKEYSCAN_FNF5, + TP_ACPI_HOTKEYSCAN_FNF6, + TP_ACPI_HOTKEYSCAN_FNF7, + TP_ACPI_HOTKEYSCAN_FNF8, + TP_ACPI_HOTKEYSCAN_FNF9, + TP_ACPI_HOTKEYSCAN_FNF10, + TP_ACPI_HOTKEYSCAN_FNF11, + TP_ACPI_HOTKEYSCAN_FNF12, + TP_ACPI_HOTKEYSCAN_FNBACKSPACE, + TP_ACPI_HOTKEYSCAN_FNINSERT, + TP_ACPI_HOTKEYSCAN_FNDELETE, + TP_ACPI_HOTKEYSCAN_FNHOME, + TP_ACPI_HOTKEYSCAN_FNEND, + TP_ACPI_HOTKEYSCAN_FNPAGEUP, + TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, + TP_ACPI_HOTKEYSCAN_FNSPACE, + TP_ACPI_HOTKEYSCAN_VOLUMEUP, + TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, + TP_ACPI_HOTKEYSCAN_MUTE, + TP_ACPI_HOTKEYSCAN_THINKPAD, + }; + + enum { /* Keys available through NVRAM polling */ + TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, + TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, + }; + + enum { /* Positions of some of the keys in hotkey masks */ + TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, + TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, + TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, + TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, + TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, + TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, + TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, + TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, + TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, + TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, + TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, + }; + + enum { /* NVRAM to ACPI HKEY group map */ + TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | + TP_ACPI_HKEY_ZOOM_MASK | + TP_ACPI_HKEY_DISPSWTCH_MASK | + TP_ACPI_HKEY_HIBERNATE_MASK, + TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | + TP_ACPI_HKEY_BRGHTDWN_MASK, + TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | + TP_ACPI_HKEY_VOLDWN_MASK | + TP_ACPI_HKEY_MUTE_MASK, + }; + + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + struct tp_nvram_state { + u16 thinkpad_toggle:1; + u16 zoom_toggle:1; + u16 display_toggle:1; + u16 thinklight_toggle:1; + u16 hibernate_toggle:1; + u16 displayexp_toggle:1; + u16 display_state:1; + u16 brightness_toggle:1; + u16 volume_toggle:1; + u16 mute:1; + + u8 brightness_level; + u8 volume_level; + }; + + static struct task_struct *tpacpi_hotkey_task; + static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ + static int hotkey_poll_freq = 10; /* Hz */ + static struct mutex hotkey_thread_mutex; + static struct mutex hotkey_thread_data_mutex; + static unsigned int hotkey_config_change; + + #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ + + #define hotkey_source_mask 0U + + #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ + + static struct mutex hotkey_mutex; + + static enum { /* Reasons for waking up */ + TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ + TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ + TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ + } hotkey_wakeup_reason; + + static int hotkey_autosleep_ack; + + static int hotkey_orig_status; + static u32 hotkey_orig_mask; + static u32 hotkey_all_mask; + static u32 hotkey_reserved_mask; + static u32 hotkey_mask; + + static unsigned int hotkey_report_mode; + + static u16 *hotkey_keycode_map; + + static struct attribute_set *hotkey_dev_attributes; + + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + #define HOTKEY_CONFIG_CRITICAL_START \ + do { \ + mutex_lock(&hotkey_thread_data_mutex); \ + hotkey_config_change++; \ + } while (0); + #define HOTKEY_CONFIG_CRITICAL_END \ + mutex_unlock(&hotkey_thread_data_mutex); + #else + #define HOTKEY_CONFIG_CRITICAL_START + #define HOTKEY_CONFIG_CRITICAL_END + #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ + + /* HKEY.MHKG() return bits */ + #define TP_HOTKEY_TABLET_MASK (1 << 3) + + static int hotkey_get_wlsw(int *status) + { + if (!acpi_evalf(hkey_handle, status, "WLSW", "d")) + return -EIO; + return 0; + } + + static int hotkey_get_tablet_mode(int *status) + { + int s; + + if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) + return -EIO; + + *status = ((s & TP_HOTKEY_TABLET_MASK) != 0); + return 0; + } + + /* + * Call with hotkey_mutex held + */ + static int hotkey_mask_get(void) + { + u32 m = 0; + + if (tp_features.hotkey_mask) { + if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) + return -EIO; + } + hotkey_mask = m | (hotkey_source_mask & hotkey_mask); + + return 0; + } + + /* + * Call with hotkey_mutex held + */ + static int hotkey_mask_set(u32 mask) + { + int i; + int rc = 0; + + if (tp_features.hotkey_mask) { + if (!tp_warned.hotkey_mask_ff && + (mask == 0xffff || mask == 0xffffff || + mask == 0xffffffff)) { + tp_warned.hotkey_mask_ff = 1; + printk(TPACPI_NOTICE + "setting the hotkey mask to 0x%08x is likely " + "not the best way to go about it\n", mask); + printk(TPACPI_NOTICE + "please consider using the driver defaults, " + "and refer to up-to-date thinkpad-acpi " + "documentation\n"); + } + + HOTKEY_CONFIG_CRITICAL_START + for (i = 0; i < 32; i++) { + u32 m = 1 << i; + /* enable in firmware mask only keys not in NVRAM + * mode, but enable the key in the cached hotkey_mask + * regardless of mode, or the key will end up + * disabled by hotkey_mask_get() */ + if (!acpi_evalf(hkey_handle, + NULL, "MHKM", "vdd", i + 1, + !!((mask & ~hotkey_source_mask) & m))) { + rc = -EIO; + break; + } else { + hotkey_mask = (hotkey_mask & ~m) | (mask & m); + } + } + HOTKEY_CONFIG_CRITICAL_END + + /* hotkey_mask_get must be called unconditionally below */ + if (!hotkey_mask_get() && !rc && + (hotkey_mask & ~hotkey_source_mask) != + (mask & ~hotkey_source_mask)) { + printk(TPACPI_NOTICE + "requested hot key mask 0x%08x, but " + "firmware forced it to 0x%08x\n", + mask, hotkey_mask); + } + } else { + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + HOTKEY_CONFIG_CRITICAL_START + hotkey_mask = mask & hotkey_source_mask; + HOTKEY_CONFIG_CRITICAL_END + hotkey_mask_get(); + if (hotkey_mask != mask) { + printk(TPACPI_NOTICE + "requested hot key mask 0x%08x, " + "forced to 0x%08x (NVRAM poll mask is " + "0x%08x): no firmware mask support\n", + mask, hotkey_mask, hotkey_source_mask); + } + #else + hotkey_mask_get(); + rc = -ENXIO; + #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ + } + + return rc; + } + + static int hotkey_status_get(int *status) + { + if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) + return -EIO; + + return 0; + } + + static int hotkey_status_set(int status) + { + if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status)) + return -EIO; + + return 0; + } + + static void tpacpi_input_send_tabletsw(void) + { + int state; + + if (tp_features.hotkey_tablet && + !hotkey_get_tablet_mode(&state)) { + mutex_lock(&tpacpi_inputdev_send_mutex); + + input_report_switch(tpacpi_inputdev, + SW_TABLET_MODE, !!state); + input_sync(tpacpi_inputdev); + + mutex_unlock(&tpacpi_inputdev_send_mutex); + } + } + + static void tpacpi_input_send_key(unsigned int scancode) + { + unsigned int keycode; + + keycode = hotkey_keycode_map[scancode]; + + if (keycode != KEY_RESERVED) { + mutex_lock(&tpacpi_inputdev_send_mutex); + + input_report_key(tpacpi_inputdev, keycode, 1); + if (keycode == KEY_UNKNOWN) + input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, + scancode); + input_sync(tpacpi_inputdev); + + input_report_key(tpacpi_inputdev, keycode, 0); + if (keycode == KEY_UNKNOWN) + input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, + scancode); + input_sync(tpacpi_inputdev); + + mutex_unlock(&tpacpi_inputdev_send_mutex); + } + } + + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; + + static void tpacpi_hotkey_send_key(unsigned int scancode) + { + tpacpi_input_send_key(scancode); + if (hotkey_report_mode < 2) { + acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device, + 0x80, 0x1001 + scancode); + } + } + + static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m) + { + u8 d; + + if (m & TP_NVRAM_HKEY_GROUP_HK2) { + d = nvram_read_byte(TP_NVRAM_ADDR_HK2); + n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); + n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); + n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); + n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); + } + if (m & TP_ACPI_HKEY_THNKLGHT_MASK) { + d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); + n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); + } + if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { + d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); + n->displayexp_toggle = + !!(d & TP_NVRAM_MASK_HKT_DISPEXPND); + } + if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { + d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); + n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) + >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; + n->brightness_toggle = + !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); + } + if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { + d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); + n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) + >> TP_NVRAM_POS_LEVEL_VOLUME; + n->mute = !!(d & TP_NVRAM_MASK_MUTE); + n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); + } + } + + #define TPACPI_COMPARE_KEY(__scancode, __member) \ + do { \ + if ((mask & (1 << __scancode)) && \ + oldn->__member != newn->__member) \ + tpacpi_hotkey_send_key(__scancode); \ + } while (0) + + #define TPACPI_MAY_SEND_KEY(__scancode) \ + do { if (mask & (1 << __scancode)) \ + tpacpi_hotkey_send_key(__scancode); } while (0) + + static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, + struct tp_nvram_state *newn, + u32 mask) + { + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); + + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); + + TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); + + /* handle volume */ + if (oldn->volume_toggle != newn->volume_toggle) { + if (oldn->mute != newn->mute) { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); + } + if (oldn->volume_level > newn->volume_level) { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); + } else if (oldn->volume_level < newn->volume_level) { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); + } else if (oldn->mute == newn->mute) { + /* repeated key presses that didn't change state */ + if (newn->mute) { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); + } else if (newn->volume_level != 0) { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); + } else { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); + } + } + } + + /* handle brightness */ + if (oldn->brightness_toggle != newn->brightness_toggle) { + if (oldn->brightness_level < newn->brightness_level) { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); + } else if (oldn->brightness_level > newn->brightness_level) { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); + } else { + /* repeated key presses that didn't change state */ + if (newn->brightness_level != 0) { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); + } else { + TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); + } + } + } + } + + #undef TPACPI_COMPARE_KEY + #undef TPACPI_MAY_SEND_KEY + + static int hotkey_kthread(void *data) + { + struct tp_nvram_state s[2]; + u32 mask; + unsigned int si, so; + unsigned long t; + unsigned int change_detector, must_reset; + + mutex_lock(&hotkey_thread_mutex); + + if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) + goto exit; + + set_freezable(); + + so = 0; + si = 1; + t = 0; + + /* Initial state for compares */ + mutex_lock(&hotkey_thread_data_mutex); + change_detector = hotkey_config_change; + mask = hotkey_source_mask & hotkey_mask; + mutex_unlock(&hotkey_thread_data_mutex); + hotkey_read_nvram(&s[so], mask); + + while (!kthread_should_stop() && hotkey_poll_freq) { + if (t == 0) + t = 1000/hotkey_poll_freq; + t = msleep_interruptible(t); + if (unlikely(kthread_should_stop())) + break; + must_reset = try_to_freeze(); + if (t > 0 && !must_reset) + continue; + + mutex_lock(&hotkey_thread_data_mutex); + if (must_reset || hotkey_config_change != change_detector) { + /* forget old state on thaw or config change */ + si = so; + t = 0; + change_detector = hotkey_config_change; + } + mask = hotkey_source_mask & hotkey_mask; + mutex_unlock(&hotkey_thread_data_mutex); + + if (likely(mask)) { + hotkey_read_nvram(&s[si], mask); + if (likely(si != so)) { + hotkey_compare_and_issue_event(&s[so], &s[si], + mask); + } + } + + so = si; + si ^= 1; + } + + exit: + mutex_unlock(&hotkey_thread_mutex); + return 0; + } + + static void hotkey_poll_stop_sync(void) + { + if (tpacpi_hotkey_task) { + if (frozen(tpacpi_hotkey_task) || + freezing(tpacpi_hotkey_task)) + thaw_process(tpacpi_hotkey_task); + + kthread_stop(tpacpi_hotkey_task); + tpacpi_hotkey_task = NULL; + mutex_lock(&hotkey_thread_mutex); + /* at this point, the thread did exit */ + mutex_unlock(&hotkey_thread_mutex); + } + } + + /* call with hotkey_mutex held */ + static void hotkey_poll_setup(int may_warn) + { + if ((hotkey_source_mask & hotkey_mask) != 0 && + hotkey_poll_freq > 0 && + (tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) { + if (!tpacpi_hotkey_task) { + tpacpi_hotkey_task = kthread_run(hotkey_kthread, + NULL, TPACPI_NVRAM_KTHREAD_NAME); + if (IS_ERR(tpacpi_hotkey_task)) { + tpacpi_hotkey_task = NULL; + printk(TPACPI_ERR + "could not create kernel thread " + "for hotkey polling\n"); + } + } + } else { + hotkey_poll_stop_sync(); + if (may_warn && + hotkey_source_mask != 0 && hotkey_poll_freq == 0) { + printk(TPACPI_NOTICE + "hot keys 0x%08x require polling, " + "which is currently disabled\n", + hotkey_source_mask); + } + } + } + + static void hotkey_poll_setup_safe(int may_warn) + { + mutex_lock(&hotkey_mutex); + hotkey_poll_setup(may_warn); + mutex_unlock(&hotkey_mutex); + } + + #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ + + static void hotkey_poll_setup_safe(int __unused) + { + } + + #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ + + static int hotkey_inputdev_open(struct input_dev *dev) + { + switch (tpacpi_lifecycle) { + case TPACPI_LIFE_INIT: + /* + * hotkey_init will call hotkey_poll_setup_safe + * at the appropriate moment + */ + return 0; + case TPACPI_LIFE_EXITING: + return -EBUSY; + case TPACPI_LIFE_RUNNING: + hotkey_poll_setup_safe(0); + return 0; + } + + /* Should only happen if tpacpi_lifecycle is corrupt */ + BUG(); + return -EBUSY; + } + + static void hotkey_inputdev_close(struct input_dev *dev) + { + /* disable hotkey polling when possible */ + if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING) + hotkey_poll_setup_safe(0); + } + + /* sysfs hotkey enable ------------------------------------------------- */ + static ssize_t hotkey_enable_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int res, status; + + res = hotkey_status_get(&status); + if (res) + return res; + + return snprintf(buf, PAGE_SIZE, "%d\n", status); + } + + static ssize_t hotkey_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long t; + int res; + + if (parse_strtoul(buf, 1, &t)) + return -EINVAL; + + res = hotkey_status_set(t); + + return (res) ? res : count; + } + + static struct device_attribute dev_attr_hotkey_enable = + __ATTR(hotkey_enable, S_IWUSR | S_IRUGO, + hotkey_enable_show, hotkey_enable_store); + + /* sysfs hotkey mask --------------------------------------------------- */ + static ssize_t hotkey_mask_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int res; + + if (mutex_lock_interruptible(&hotkey_mutex)) + return -ERESTARTSYS; + res = hotkey_mask_get(); + mutex_unlock(&hotkey_mutex); + + return (res)? + res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask); + } + + static ssize_t hotkey_mask_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long t; + int res; + + if (parse_strtoul(buf, 0xffffffffUL, &t)) + return -EINVAL; + + if (mutex_lock_interruptible(&hotkey_mutex)) + return -ERESTARTSYS; + + res = hotkey_mask_set(t); + + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + hotkey_poll_setup(1); + #endif + + mutex_unlock(&hotkey_mutex); + + return (res) ? res : count; + } + + static struct device_attribute dev_attr_hotkey_mask = + __ATTR(hotkey_mask, S_IWUSR | S_IRUGO, + hotkey_mask_show, hotkey_mask_store); + + /* sysfs hotkey bios_enabled ------------------------------------------- */ + static ssize_t hotkey_bios_enabled_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status); + } + + static struct device_attribute dev_attr_hotkey_bios_enabled = + __ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL); + + /* sysfs hotkey bios_mask ---------------------------------------------- */ + static ssize_t hotkey_bios_mask_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); + } + + static struct device_attribute dev_attr_hotkey_bios_mask = + __ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL); + + /* sysfs hotkey all_mask ----------------------------------------------- */ + static ssize_t hotkey_all_mask_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "0x%08x\n", + hotkey_all_mask | hotkey_source_mask); + } + + static struct device_attribute dev_attr_hotkey_all_mask = + __ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL); + + /* sysfs hotkey recommended_mask --------------------------------------- */ + static ssize_t hotkey_recommended_mask_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "0x%08x\n", + (hotkey_all_mask | hotkey_source_mask) + & ~hotkey_reserved_mask); + } + + static struct device_attribute dev_attr_hotkey_recommended_mask = + __ATTR(hotkey_recommended_mask, S_IRUGO, + hotkey_recommended_mask_show, NULL); + + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + + /* sysfs hotkey hotkey_source_mask ------------------------------------- */ + static ssize_t hotkey_source_mask_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); + } + + static ssize_t hotkey_source_mask_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long t; + + if (parse_strtoul(buf, 0xffffffffUL, &t) || + ((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) + return -EINVAL; + + if (mutex_lock_interruptible(&hotkey_mutex)) + return -ERESTARTSYS; + + HOTKEY_CONFIG_CRITICAL_START + hotkey_source_mask = t; + HOTKEY_CONFIG_CRITICAL_END + + hotkey_poll_setup(1); + + mutex_unlock(&hotkey_mutex); + + return count; + } + + static struct device_attribute dev_attr_hotkey_source_mask = + __ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO, + hotkey_source_mask_show, hotkey_source_mask_store); + + /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ + static ssize_t hotkey_poll_freq_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); + } + + static ssize_t hotkey_poll_freq_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long t; + + if (parse_strtoul(buf, 25, &t)) + return -EINVAL; + + if (mutex_lock_interruptible(&hotkey_mutex)) + return -ERESTARTSYS; + + hotkey_poll_freq = t; + + hotkey_poll_setup(1); + mutex_unlock(&hotkey_mutex); + + return count; + } + + static struct device_attribute dev_attr_hotkey_poll_freq = + __ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO, + hotkey_poll_freq_show, hotkey_poll_freq_store); + + #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ + + /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ + static ssize_t hotkey_radio_sw_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int res, s; + res = hotkey_get_wlsw(&s); + if (res < 0) + return res; + + return snprintf(buf, PAGE_SIZE, "%d\n", !!s); + } + + static struct device_attribute dev_attr_hotkey_radio_sw = + __ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL); + + static void hotkey_radio_sw_notify_change(void) + { + if (tp_features.hotkey_wlsw) + sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, + "hotkey_radio_sw"); + } + + /* sysfs hotkey tablet mode (pollable) --------------------------------- */ + static ssize_t hotkey_tablet_mode_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int res, s; + res = hotkey_get_tablet_mode(&s); + if (res < 0) + return res; + + return snprintf(buf, PAGE_SIZE, "%d\n", !!s); + } + + static struct device_attribute dev_attr_hotkey_tablet_mode = + __ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL); + + static void hotkey_tablet_mode_notify_change(void) + { + if (tp_features.hotkey_tablet) + sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, + "hotkey_tablet_mode"); + } + + /* sysfs hotkey report_mode -------------------------------------------- */ + static ssize_t hotkey_report_mode_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "%d\n", + (hotkey_report_mode != 0) ? hotkey_report_mode : 1); + } + + static struct device_attribute dev_attr_hotkey_report_mode = + __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL); + + /* sysfs wakeup reason (pollable) -------------------------------------- */ + static ssize_t hotkey_wakeup_reason_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); + } + + static struct device_attribute dev_attr_hotkey_wakeup_reason = + __ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); + + static void hotkey_wakeup_reason_notify_change(void) + { + if (tp_features.hotkey_mask) + sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, + "wakeup_reason"); + } + + /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ + static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); + } + + static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete = + __ATTR(wakeup_hotunplug_complete, S_IRUGO, + hotkey_wakeup_hotunplug_complete_show, NULL); + + static void hotkey_wakeup_hotunplug_complete_notify_change(void) + { + if (tp_features.hotkey_mask) + sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, + "wakeup_hotunplug_complete"); + } + + /* --------------------------------------------------------------------- */ + + static struct attribute *hotkey_attributes[] __initdata = { + &dev_attr_hotkey_enable.attr, + &dev_attr_hotkey_bios_enabled.attr, + &dev_attr_hotkey_report_mode.attr, + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + &dev_attr_hotkey_mask.attr, + &dev_attr_hotkey_all_mask.attr, + &dev_attr_hotkey_recommended_mask.attr, + &dev_attr_hotkey_source_mask.attr, + &dev_attr_hotkey_poll_freq.attr, + #endif + }; + + static struct attribute *hotkey_mask_attributes[] __initdata = { + &dev_attr_hotkey_bios_mask.attr, + #ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + &dev_attr_hotkey_mask.attr, + &dev_attr_hotkey_all_mask.attr, + &dev_attr_hotkey_recommended_mask.attr, + #endif + &dev_attr_hotkey_wakeup_reason.attr, + &dev_attr_hotkey_wakeup_hotunplug_complete.attr, + }; + + static void bluetooth_update_rfk(void); + static void wan_update_rfk(void); + static void tpacpi_send_radiosw_update(void) + { + int wlsw; + + /* Sync these BEFORE sending any rfkill events */ + if (tp_features.bluetooth) + bluetooth_update_rfk(); + if (tp_features.wan) + wan_update_rfk(); + + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { + mutex_lock(&tpacpi_inputdev_send_mutex); + + input_report_switch(tpacpi_inputdev, + SW_RFKILL_ALL, !!wlsw); + input_sync(tpacpi_inputdev); + + mutex_unlock(&tpacpi_inputdev_send_mutex); + } + hotkey_radio_sw_notify_change(); + } + + static void hotkey_exit(void) + { + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + hotkey_poll_stop_sync(); + #endif + + if (hotkey_dev_attributes) + delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); + + kfree(hotkey_keycode_map); + + if (tp_features.hotkey) { + dbg_printk(TPACPI_DBG_EXIT, + "restoring original hot key mask\n"); + /* no short-circuit boolean operator below! */ + if ((hotkey_mask_set(hotkey_orig_mask) | + hotkey_status_set(hotkey_orig_status)) != 0) + printk(TPACPI_ERR + "failed to restore hot key mask " + "to BIOS defaults\n"); + } + } + + static int __init hotkey_init(struct ibm_init_struct *iibm) + { + /* Requirements for changing the default keymaps: + * + * 1. Many of the keys are mapped to KEY_RESERVED for very + * good reasons. Do not change them unless you have deep + * knowledge on the IBM and Lenovo ThinkPad firmware for + * the various ThinkPad models. The driver behaves + * differently for KEY_RESERVED: such keys have their + * hot key mask *unset* in mask_recommended, and also + * in the initial hot key mask programmed into the + * firmware at driver load time, which means the firm- + * ware may react very differently if you change them to + * something else; + * + * 2. You must be subscribed to the linux-thinkpad and + * ibm-acpi-devel mailing lists, and you should read the + * list archives since 2007 if you want to change the + * keymaps. This requirement exists so that you will + * know the past history of problems with the thinkpad- + * acpi driver keymaps, and also that you will be + * listening to any bug reports; + * + * 3. Do not send thinkpad-acpi specific patches directly to + * for merging, *ever*. Send them to the linux-acpi + * mailinglist for comments. Merging is to be done only + * through acpi-test and the ACPI maintainer. + * + * If the above is too much to ask, don't change the keymap. + * Ask the thinkpad-acpi maintainer to do it, instead. + */ + static u16 ibm_keycode_map[] __initdata = { + /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ + KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP, + KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, + KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, + + /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ + KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ + KEY_UNKNOWN, /* 0x0D: FN+INSERT */ + KEY_UNKNOWN, /* 0x0E: FN+DELETE */ + + /* brightness: firmware always reacts to them, unless + * X.org did some tricks in the radeon BIOS scratch + * registers of *some* models */ + KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ + KEY_RESERVED, /* 0x10: FN+END (brightness down) */ + + /* Thinklight: firmware always react to it */ + KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ + + KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ + KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ + + /* Volume: firmware always react to it and reprograms + * the built-in *extra* mixer. Never map it to control + * another mixer by default. */ + KEY_RESERVED, /* 0x14: VOLUME UP */ + KEY_RESERVED, /* 0x15: VOLUME DOWN */ + KEY_RESERVED, /* 0x16: MUTE */ + + KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ + + /* (assignments unknown, please report if found) */ + KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, + KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, + }; + static u16 lenovo_keycode_map[] __initdata = { + /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ + KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, + KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, + KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, + + /* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ + KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ + KEY_UNKNOWN, /* 0x0D: FN+INSERT */ + KEY_UNKNOWN, /* 0x0E: FN+DELETE */ + + /* These either have to go through ACPI video, or + * act like in the IBM ThinkPads, so don't ever + * enable them by default */ + KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ + KEY_RESERVED, /* 0x10: FN+END (brightness down) */ + + KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ + + KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ + KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ + + /* Volume: z60/z61, T60 (BIOS version?): firmware always + * react to it and reprograms the built-in *extra* mixer. + * Never map it to control another mixer by default. + * + * T60?, T61, R60?, R61: firmware and EC tries to send + * these over the regular keyboard, so these are no-ops, + * but there are still weird bugs re. MUTE, so do not + * change unless you get test reports from all Lenovo + * models. May cause the BIOS to interfere with the + * HDA mixer. + */ + KEY_RESERVED, /* 0x14: VOLUME UP */ + KEY_RESERVED, /* 0x15: VOLUME DOWN */ + KEY_RESERVED, /* 0x16: MUTE */ + + KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ + + /* (assignments unknown, please report if found) */ + KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, + KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, + }; + + #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map) + #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map) + #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0]) + + int res, i; + int status; + int hkeyv; + + vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n"); + + BUG_ON(!tpacpi_inputdev); + BUG_ON(tpacpi_inputdev->open != NULL || + tpacpi_inputdev->close != NULL); + + TPACPI_ACPIHANDLE_INIT(hkey); + mutex_init(&hotkey_mutex); + + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + mutex_init(&hotkey_thread_mutex); + mutex_init(&hotkey_thread_data_mutex); + #endif + + /* hotkey not supported on 570 */ + tp_features.hotkey = hkey_handle != NULL; + + vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n", + str_supported(tp_features.hotkey)); + + if (!tp_features.hotkey) + return 1; + + tpacpi_disable_brightness_delay(); + + hotkey_dev_attributes = create_attr_set(13, NULL); + if (!hotkey_dev_attributes) + return -ENOMEM; + res = add_many_to_attr_set(hotkey_dev_attributes, + hotkey_attributes, + ARRAY_SIZE(hotkey_attributes)); + if (res) + goto err_exit; + + /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, + A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking + for HKEY interface version 0x100 */ + if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { + if ((hkeyv >> 8) != 1) { + printk(TPACPI_ERR "unknown version of the " + "HKEY interface: 0x%x\n", hkeyv); + printk(TPACPI_ERR "please report this to %s\n", + TPACPI_MAIL); + } else { + /* + * MHKV 0x100 in A31, R40, R40e, + * T4x, X31, and later + */ + tp_features.hotkey_mask = 1; + } + } + + vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n", + str_supported(tp_features.hotkey_mask)); + + if (tp_features.hotkey_mask) { + if (!acpi_evalf(hkey_handle, &hotkey_all_mask, + "MHKA", "qd")) { + printk(TPACPI_ERR + "missing MHKA handler, " + "please report this to %s\n", + TPACPI_MAIL); + /* FN+F12, FN+F4, FN+F3 */ + hotkey_all_mask = 0x080cU; + } + } + + /* hotkey_source_mask *must* be zero for + * the first hotkey_mask_get */ + res = hotkey_status_get(&hotkey_orig_status); + if (res) + goto err_exit; + + if (tp_features.hotkey_mask) { + res = hotkey_mask_get(); + if (res) + goto err_exit; + + hotkey_orig_mask = hotkey_mask; + res = add_many_to_attr_set( + hotkey_dev_attributes, + hotkey_mask_attributes, + ARRAY_SIZE(hotkey_mask_attributes)); + if (res) + goto err_exit; + } + + #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL + if (tp_features.hotkey_mask) { + hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK + & ~hotkey_all_mask; + } else { + hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK; + } + + vdbg_printk(TPACPI_DBG_INIT, + "hotkey source mask 0x%08x, polling freq %d\n", + hotkey_source_mask, hotkey_poll_freq); + #endif + + /* Not all thinkpads have a hardware radio switch */ + if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { + tp_features.hotkey_wlsw = 1; + printk(TPACPI_INFO + "radio switch found; radios are %s\n", + enabled(status, 0)); + } + if (tp_features.hotkey_wlsw) + res = add_to_attr_set(hotkey_dev_attributes, + &dev_attr_hotkey_radio_sw.attr); + + /* For X41t, X60t, X61t Tablets... */ + if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { + tp_features.hotkey_tablet = 1; + printk(TPACPI_INFO + "possible tablet mode switch found; " + "ThinkPad in %s mode\n", + (status & TP_HOTKEY_TABLET_MASK)? + "tablet" : "laptop"); + res = add_to_attr_set(hotkey_dev_attributes, + &dev_attr_hotkey_tablet_mode.attr); + } + + if (!res) + res = register_attr_set_with_sysfs( + hotkey_dev_attributes, + &tpacpi_pdev->dev.kobj); + if (res) + goto err_exit; + + /* Set up key map */ + + hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, + GFP_KERNEL); + if (!hotkey_keycode_map) { + printk(TPACPI_ERR + "failed to allocate memory for key map\n"); + res = -ENOMEM; + goto err_exit; + } + + if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) { + dbg_printk(TPACPI_DBG_INIT, + "using Lenovo default hot key map\n"); + memcpy(hotkey_keycode_map, &lenovo_keycode_map, + TPACPI_HOTKEY_MAP_SIZE); + } else { + dbg_printk(TPACPI_DBG_INIT, + "using IBM default hot key map\n"); + memcpy(hotkey_keycode_map, &ibm_keycode_map, + TPACPI_HOTKEY_MAP_SIZE); + } + + set_bit(EV_KEY, tpacpi_inputdev->evbit); + set_bit(EV_MSC, tpacpi_inputdev->evbit); + set_bit(MSC_SCAN, tpacpi_inputdev->mscbit); + tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; + tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; + tpacpi_inputdev->keycode = hotkey_keycode_map; + for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { + if (hotkey_keycode_map[i] != KEY_RESERVED) { + set_bit(hotkey_keycode_map[i], + tpacpi_inputdev->keybit); + } else { + if (i < sizeof(hotkey_reserved_mask)*8) + hotkey_reserved_mask |= 1 << i; + } + } + + if (tp_features.hotkey_wlsw) { + set_bit(EV_SW, tpacpi_inputdev->evbit); + set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit); + } + if (tp_features.hotkey_tablet) { + set_bit(EV_SW, tpacpi_inputdev->evbit); + set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit); + } + + /* Do not issue duplicate brightness change events to + * userspace */ + if (!tp_features.bright_acpimode) + /* update bright_acpimode... */ + tpacpi_check_std_acpi_brightness_support(); + + if (tp_features.bright_acpimode) { + printk(TPACPI_INFO + "This ThinkPad has standard ACPI backlight " + "brightness control, supported by the ACPI " + "video driver\n"); + printk(TPACPI_NOTICE + "Disabling thinkpad-acpi brightness events " + "by default...\n"); + + /* The hotkey_reserved_mask change below is not + * necessary while the keys are at KEY_RESERVED in the + * default map, but better safe than sorry, leave it + * here as a marker of what we have to do, especially + * when we finally become able to set this at runtime + * on response to X.org requests */ + hotkey_reserved_mask |= + (1 << TP_ACPI_HOTKEYSCAN_FNHOME) + | (1 << TP_ACPI_HOTKEYSCAN_FNEND); + } + + dbg_printk(TPACPI_DBG_INIT, "enabling hot key handling\n"); + res = hotkey_status_set(1); + if (res) { + hotkey_exit(); + return res; + } + res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask) + & ~hotkey_reserved_mask) + | hotkey_orig_mask); + if (res < 0 && res != -ENXIO) { + hotkey_exit(); + return res; + } + + dbg_printk(TPACPI_DBG_INIT, + "legacy hot key reporting over procfs %s\n", + (hotkey_report_mode < 2) ? + "enabled" : "disabled"); + + tpacpi_inputdev->open = &hotkey_inputdev_open; + tpacpi_inputdev->close = &hotkey_inputdev_close; + + hotkey_poll_setup_safe(1); + tpacpi_send_radiosw_update(); + tpacpi_input_send_tabletsw(); + + return 0; + + err_exit: + delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); + hotkey_dev_attributes = NULL; + + return (res < 0)? res : 1; + } + + static void hotkey_notify(struct ibm_struct *ibm, u32 event) + { + u32 hkey; + unsigned int scancode; + int send_acpi_ev; + int ignore_acpi_ev; + int unk_ev; + + if (event != 0x80) { + printk(TPACPI_ERR + "unknown HKEY notification event %d\n", event); + /* forward it to userspace, maybe it knows how to handle it */ + acpi_bus_generate_netlink_event( + ibm->acpi->device->pnp.device_class, + ibm->acpi->device->dev.bus_id, + event, 0); + return; + } + + while (1) { + if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { + printk(TPACPI_ERR "failed to retrieve HKEY event\n"); + return; + } + + if (hkey == 0) { + /* queue empty */ + return; + } + + send_acpi_ev = 1; + ignore_acpi_ev = 0; + unk_ev = 0; + + switch (hkey >> 12) { + case 1: + /* 0x1000-0x1FFF: key presses */ + scancode = hkey & 0xfff; + if (scancode > 0 && scancode < 0x21) { + scancode--; + if (!(hotkey_source_mask & (1 << scancode))) { + tpacpi_input_send_key(scancode); + send_acpi_ev = 0; + } else { + ignore_acpi_ev = 1; + } + } else { + unk_ev = 1; + } + break; + case 2: + /* Wakeup reason */ + switch (hkey) { + case 0x2304: /* suspend, undock */ + case 0x2404: /* hibernation, undock */ + hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; + ignore_acpi_ev = 1; + break; + case 0x2305: /* suspend, bay eject */ + case 0x2405: /* hibernation, bay eject */ + hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; + ignore_acpi_ev = 1; + break; + default: + unk_ev = 1; + } + if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { + printk(TPACPI_INFO + "woke up due to a hot-unplug " + "request...\n"); + hotkey_wakeup_reason_notify_change(); + } + break; + case 3: + /* bay-related wakeups */ + if (hkey == 0x3003) { + hotkey_autosleep_ack = 1; + printk(TPACPI_INFO + "bay ejected\n"); + hotkey_wakeup_hotunplug_complete_notify_change(); + } else { + unk_ev = 1; + } + break; + case 4: + /* dock-related wakeups */ + if (hkey == 0x4003) { + hotkey_autosleep_ack = 1; + printk(TPACPI_INFO + "undocked\n"); + hotkey_wakeup_hotunplug_complete_notify_change(); + } else { + unk_ev = 1; + } + break; + case 5: + /* 0x5000-0x5FFF: human interface helpers */ + switch (hkey) { + case 0x5010: /* Lenovo new BIOS: brightness changed */ + case 0x500b: /* X61t: tablet pen inserted into bay */ + case 0x500c: /* X61t: tablet pen removed from bay */ + break; + case 0x5009: /* X41t-X61t: swivel up (tablet mode) */ + case 0x500a: /* X41t-X61t: swivel down (normal mode) */ + tpacpi_input_send_tabletsw(); + hotkey_tablet_mode_notify_change(); + send_acpi_ev = 0; + break; + case 0x5001: + case 0x5002: + /* LID switch events. Do not propagate */ + ignore_acpi_ev = 1; + break; + default: + unk_ev = 1; + } + break; + case 7: + /* 0x7000-0x7FFF: misc */ + if (tp_features.hotkey_wlsw && hkey == 0x7000) { + tpacpi_send_radiosw_update(); + send_acpi_ev = 0; + break; + } + /* fallthrough to default */ + default: + unk_ev = 1; + } + if (unk_ev) { + printk(TPACPI_NOTICE + "unhandled HKEY event 0x%04x\n", hkey); + } + + /* Legacy events */ + if (!ignore_acpi_ev && + (send_acpi_ev || hotkey_report_mode < 2)) { + acpi_bus_generate_proc_event(ibm->acpi->device, + event, hkey); + } + + /* netlink events */ + if (!ignore_acpi_ev && send_acpi_ev) { + acpi_bus_generate_netlink_event( + ibm->acpi->device->pnp.device_class, + ibm->acpi->device->dev.bus_id, + event, hkey); + } + } + } + + static void hotkey_suspend(pm_message_t state) + { + /* Do these on suspend, we get the events on early resume! */ + hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; + hotkey_autosleep_ack = 0; + } + + static void hotkey_resume(void) + { + tpacpi_disable_brightness_delay(); + + if (hotkey_mask_get()) + printk(TPACPI_ERR + "error while trying to read hot key mask " + "from firmware\n"); + tpacpi_send_radiosw_update(); + hotkey_tablet_mode_notify_change(); + hotkey_wakeup_reason_notify_change(); + hotkey_wakeup_hotunplug_complete_notify_change(); + hotkey_poll_setup_safe(0); + } + + /* procfs -------------------------------------------------------------- */ + static int hotkey_read(char *p) + { + int res, status; + int len = 0; + + if (!tp_features.hotkey) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + return len; + } + + if (mutex_lock_interruptible(&hotkey_mutex)) + return -ERESTARTSYS; + res = hotkey_status_get(&status); + if (!res) + res = hotkey_mask_get(); + mutex_unlock(&hotkey_mutex); + if (res) + return res; + + len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0)); + if (tp_features.hotkey_mask) { + len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask); + len += sprintf(p + len, + "commands:\tenable, disable, reset, \n"); + } else { + len += sprintf(p + len, "mask:\t\tnot supported\n"); + len += sprintf(p + len, "commands:\tenable, disable, reset\n"); + } + + return len; + } + + static int hotkey_write(char *buf) + { + int res, status; + u32 mask; + char *cmd; + + if (!tp_features.hotkey) + return -ENODEV; + + if (mutex_lock_interruptible(&hotkey_mutex)) + return -ERESTARTSYS; + + status = -1; + mask = hotkey_mask; + + res = 0; + while ((cmd = next_cmd(&buf))) { + if (strlencmp(cmd, "enable") == 0) { + status = 1; + } else if (strlencmp(cmd, "disable") == 0) { + status = 0; + } else if (strlencmp(cmd, "reset") == 0) { + status = hotkey_orig_status; + mask = hotkey_orig_mask; + } else if (sscanf(cmd, "0x%x", &mask) == 1) { + /* mask set */ + } else if (sscanf(cmd, "%x", &mask) == 1) { + /* mask set */ + } else { + res = -EINVAL; + goto errexit; + } + } + if (status != -1) + res = hotkey_status_set(status); + + if (!res && mask != hotkey_mask) + res = hotkey_mask_set(mask); + + errexit: + mutex_unlock(&hotkey_mutex); + return res; + } + + static const struct acpi_device_id ibm_htk_device_ids[] = { + {TPACPI_ACPI_HKEY_HID, 0}, + {"", 0}, + }; + + static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { + .hid = ibm_htk_device_ids, + .notify = hotkey_notify, + .handle = &hkey_handle, + .type = ACPI_DEVICE_NOTIFY, + }; + + static struct ibm_struct hotkey_driver_data = { + .name = "hotkey", + .read = hotkey_read, + .write = hotkey_write, + .exit = hotkey_exit, + .resume = hotkey_resume, + .suspend = hotkey_suspend, + .acpi = &ibm_hotkey_acpidriver, + }; + + /************************************************************************* + * Bluetooth subdriver + */ + + enum { + /* ACPI GBDC/SBDC bits */ + TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ + TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ + TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ + }; + + static struct rfkill *tpacpi_bluetooth_rfkill; + + static int bluetooth_get_radiosw(void) + { + int status; + + if (!tp_features.bluetooth) + return -ENODEV; + + /* WLSW overrides bluetooth in firmware/hardware, reflect that */ + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) + return RFKILL_STATE_HARD_BLOCKED; + + if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) + return -EIO; + + return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? + RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; + } + + static void bluetooth_update_rfk(void) + { + int status; + + if (!tpacpi_bluetooth_rfkill) + return; + + status = bluetooth_get_radiosw(); + if (status < 0) + return; + rfkill_force_state(tpacpi_bluetooth_rfkill, status); + } + + static int bluetooth_set_radiosw(int radio_on, int update_rfk) + { + int status; + + if (!tp_features.bluetooth) + return -ENODEV; + + /* WLSW overrides bluetooth in firmware/hardware, but there is no + * reason to risk weird behaviour. */ + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status + && radio_on) + return -EPERM; + + if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) + return -EIO; + if (radio_on) + status |= TP_ACPI_BLUETOOTH_RADIOSSW; + else + status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; + if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) + return -EIO; + + if (update_rfk) + bluetooth_update_rfk(); + + return 0; + } + + /* sysfs bluetooth enable ---------------------------------------------- */ + static ssize_t bluetooth_enable_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int status; + + status = bluetooth_get_radiosw(); + if (status < 0) + return status; + + return snprintf(buf, PAGE_SIZE, "%d\n", + (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); + } + + static ssize_t bluetooth_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long t; + int res; + + if (parse_strtoul(buf, 1, &t)) + return -EINVAL; + + res = bluetooth_set_radiosw(t, 1); + + return (res) ? res : count; + } + + static struct device_attribute dev_attr_bluetooth_enable = + __ATTR(bluetooth_enable, S_IWUSR | S_IRUGO, + bluetooth_enable_show, bluetooth_enable_store); + + /* --------------------------------------------------------------------- */ + + static struct attribute *bluetooth_attributes[] = { + &dev_attr_bluetooth_enable.attr, + NULL + }; + + static const struct attribute_group bluetooth_attr_group = { + .attrs = bluetooth_attributes, + }; + + static int tpacpi_bluetooth_rfk_get(void *data, enum rfkill_state *state) + { + int bts = bluetooth_get_radiosw(); + + if (bts < 0) + return bts; + + *state = bts; + return 0; + } + + static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state) + { + return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); + } + + static void bluetooth_exit(void) + { + if (tpacpi_bluetooth_rfkill) + rfkill_unregister(tpacpi_bluetooth_rfkill); + + sysfs_remove_group(&tpacpi_pdev->dev.kobj, + &bluetooth_attr_group); + } + + static int __init bluetooth_init(struct ibm_init_struct *iibm) + { + int res; + int status = 0; + + vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(hkey); + + /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, + G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ + tp_features.bluetooth = hkey_handle && + acpi_evalf(hkey_handle, &status, "GBDC", "qd"); + + vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n", + str_supported(tp_features.bluetooth), + status); + + if (tp_features.bluetooth && + !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { + /* no bluetooth hardware present in system */ + tp_features.bluetooth = 0; + dbg_printk(TPACPI_DBG_INIT, + "bluetooth hardware not installed\n"); + } + + if (!tp_features.bluetooth) + return 1; + + res = sysfs_create_group(&tpacpi_pdev->dev.kobj, + &bluetooth_attr_group); + if (res) + return res; + + res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, + &tpacpi_bluetooth_rfkill, + RFKILL_TYPE_BLUETOOTH, + "tpacpi_bluetooth_sw", + tpacpi_bluetooth_rfk_set, + tpacpi_bluetooth_rfk_get); + if (res) { + bluetooth_exit(); + return res; + } + + return 0; + } + + /* procfs -------------------------------------------------------------- */ + static int bluetooth_read(char *p) + { + int len = 0; + int status = bluetooth_get_radiosw(); + + if (!tp_features.bluetooth) + len += sprintf(p + len, "status:\t\tnot supported\n"); + else { + len += sprintf(p + len, "status:\t\t%s\n", + (status == RFKILL_STATE_UNBLOCKED) ? + "enabled" : "disabled"); + len += sprintf(p + len, "commands:\tenable, disable\n"); + } + + return len; + } + + static int bluetooth_write(char *buf) + { + char *cmd; + + if (!tp_features.bluetooth) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (strlencmp(cmd, "enable") == 0) { + bluetooth_set_radiosw(1, 1); + } else if (strlencmp(cmd, "disable") == 0) { + bluetooth_set_radiosw(0, 1); + } else + return -EINVAL; + } + + return 0; + } + + static struct ibm_struct bluetooth_driver_data = { + .name = "bluetooth", + .read = bluetooth_read, + .write = bluetooth_write, + .exit = bluetooth_exit, + }; + + /************************************************************************* + * Wan subdriver + */ + + enum { + /* ACPI GWAN/SWAN bits */ + TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ + TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ + TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ + }; + + static struct rfkill *tpacpi_wan_rfkill; + + static int wan_get_radiosw(void) + { + int status; + + if (!tp_features.wan) + return -ENODEV; + + /* WLSW overrides WWAN in firmware/hardware, reflect that */ + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) + return RFKILL_STATE_HARD_BLOCKED; + + if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) + return -EIO; + + return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? + RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; + } + + static void wan_update_rfk(void) + { + int status; + + if (!tpacpi_wan_rfkill) + return; + + status = wan_get_radiosw(); + if (status < 0) + return; + rfkill_force_state(tpacpi_wan_rfkill, status); + } + + static int wan_set_radiosw(int radio_on, int update_rfk) + { + int status; + + if (!tp_features.wan) + return -ENODEV; + + /* WLSW overrides bluetooth in firmware/hardware, but there is no + * reason to risk weird behaviour. */ + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status + && radio_on) + return -EPERM; + + if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) + return -EIO; + if (radio_on) + status |= TP_ACPI_WANCARD_RADIOSSW; + else + status &= ~TP_ACPI_WANCARD_RADIOSSW; + if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) + return -EIO; + + if (update_rfk) + wan_update_rfk(); + + return 0; + } + + /* sysfs wan enable ---------------------------------------------------- */ + static ssize_t wan_enable_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int status; + + status = wan_get_radiosw(); + if (status < 0) + return status; + + return snprintf(buf, PAGE_SIZE, "%d\n", + (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); + } + + static ssize_t wan_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long t; + int res; + + if (parse_strtoul(buf, 1, &t)) + return -EINVAL; + + res = wan_set_radiosw(t, 1); + + return (res) ? res : count; + } + + static struct device_attribute dev_attr_wan_enable = + __ATTR(wwan_enable, S_IWUSR | S_IRUGO, + wan_enable_show, wan_enable_store); + + /* --------------------------------------------------------------------- */ + + static struct attribute *wan_attributes[] = { + &dev_attr_wan_enable.attr, + NULL + }; + + static const struct attribute_group wan_attr_group = { + .attrs = wan_attributes, + }; + + static int tpacpi_wan_rfk_get(void *data, enum rfkill_state *state) + { + int wans = wan_get_radiosw(); + + if (wans < 0) + return wans; + + *state = wans; + return 0; + } + + static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state) + { + return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); + } + + static void wan_exit(void) + { + if (tpacpi_wan_rfkill) + rfkill_unregister(tpacpi_wan_rfkill); + + sysfs_remove_group(&tpacpi_pdev->dev.kobj, + &wan_attr_group); + } + + static int __init wan_init(struct ibm_init_struct *iibm) + { + int res; + int status = 0; + + vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(hkey); + + tp_features.wan = hkey_handle && + acpi_evalf(hkey_handle, &status, "GWAN", "qd"); + + vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n", + str_supported(tp_features.wan), + status); + + if (tp_features.wan && + !(status & TP_ACPI_WANCARD_HWPRESENT)) { + /* no wan hardware present in system */ + tp_features.wan = 0; + dbg_printk(TPACPI_DBG_INIT, + "wan hardware not installed\n"); + } + + if (!tp_features.wan) + return 1; + + res = sysfs_create_group(&tpacpi_pdev->dev.kobj, + &wan_attr_group); + if (res) + return res; + + res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, + &tpacpi_wan_rfkill, + RFKILL_TYPE_WWAN, + "tpacpi_wwan_sw", + tpacpi_wan_rfk_set, + tpacpi_wan_rfk_get); + if (res) { + wan_exit(); + return res; + } + + return 0; + } + + /* procfs -------------------------------------------------------------- */ + static int wan_read(char *p) + { + int len = 0; + int status = wan_get_radiosw(); + + if (!tp_features.wan) + len += sprintf(p + len, "status:\t\tnot supported\n"); + else { + len += sprintf(p + len, "status:\t\t%s\n", + (status == RFKILL_STATE_UNBLOCKED) ? + "enabled" : "disabled"); + len += sprintf(p + len, "commands:\tenable, disable\n"); + } + + return len; + } + + static int wan_write(char *buf) + { + char *cmd; + + if (!tp_features.wan) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (strlencmp(cmd, "enable") == 0) { + wan_set_radiosw(1, 1); + } else if (strlencmp(cmd, "disable") == 0) { + wan_set_radiosw(0, 1); + } else + return -EINVAL; + } + + return 0; + } + + static struct ibm_struct wan_driver_data = { + .name = "wan", + .read = wan_read, + .write = wan_write, + .exit = wan_exit, + }; + + /************************************************************************* + * Video subdriver + */ + + #ifdef CONFIG_THINKPAD_ACPI_VIDEO + + enum video_access_mode { + TPACPI_VIDEO_NONE = 0, + TPACPI_VIDEO_570, /* 570 */ + TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ + TPACPI_VIDEO_NEW, /* all others */ + }; + + enum { /* video status flags, based on VIDEO_570 */ + TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ + TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ + TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ + }; + + enum { /* TPACPI_VIDEO_570 constants */ + TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ + TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to + * video_status_flags */ + TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ + TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ + }; + + static enum video_access_mode video_supported; + static int video_orig_autosw; + + static int video_autosw_get(void); + static int video_autosw_set(int enable); + + TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ + + static int __init video_init(struct ibm_init_struct *iibm) + { + int ivga; + + vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(vid); + TPACPI_ACPIHANDLE_INIT(vid2); + + if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) + /* G41, assume IVGA doesn't change */ + vid_handle = vid2_handle; + + if (!vid_handle) + /* video switching not supported on R30, R31 */ + video_supported = TPACPI_VIDEO_NONE; + else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) + /* 570 */ + video_supported = TPACPI_VIDEO_570; + else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) + /* 600e/x, 770e, 770x */ + video_supported = TPACPI_VIDEO_770; + else + /* all others */ + video_supported = TPACPI_VIDEO_NEW; + + vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", + str_supported(video_supported != TPACPI_VIDEO_NONE), + video_supported); + + return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1; + } + + static void video_exit(void) + { + dbg_printk(TPACPI_DBG_EXIT, + "restoring original video autoswitch mode\n"); + if (video_autosw_set(video_orig_autosw)) + printk(TPACPI_ERR "error while trying to restore original " + "video autoswitch mode\n"); + } + + static int video_outputsw_get(void) + { + int status = 0; + int i; + + switch (video_supported) { + case TPACPI_VIDEO_570: + if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", + TP_ACPI_VIDEO_570_PHSCMD)) + return -EIO; + status = i & TP_ACPI_VIDEO_570_PHSMASK; + break; + case TPACPI_VIDEO_770: + if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) + return -EIO; + if (i) + status |= TP_ACPI_VIDEO_S_LCD; + if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) + return -EIO; + if (i) + status |= TP_ACPI_VIDEO_S_CRT; + break; + case TPACPI_VIDEO_NEW: + if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || + !acpi_evalf(NULL, &i, "\\VCDC", "d")) + return -EIO; + if (i) + status |= TP_ACPI_VIDEO_S_CRT; + + if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || + !acpi_evalf(NULL, &i, "\\VCDL", "d")) + return -EIO; + if (i) + status |= TP_ACPI_VIDEO_S_LCD; + if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) + return -EIO; + if (i) + status |= TP_ACPI_VIDEO_S_DVI; + break; + default: + return -ENOSYS; + } + + return status; + } + + static int video_outputsw_set(int status) + { + int autosw; + int res = 0; + + switch (video_supported) { + case TPACPI_VIDEO_570: + res = acpi_evalf(NULL, NULL, + "\\_SB.PHS2", "vdd", + TP_ACPI_VIDEO_570_PHS2CMD, + status | TP_ACPI_VIDEO_570_PHS2SET); + break; + case TPACPI_VIDEO_770: + autosw = video_autosw_get(); + if (autosw < 0) + return autosw; + + res = video_autosw_set(1); + if (res) + return res; + res = acpi_evalf(vid_handle, NULL, + "ASWT", "vdd", status * 0x100, 0); + if (!autosw && video_autosw_set(autosw)) { + printk(TPACPI_ERR + "video auto-switch left enabled due to error\n"); + return -EIO; + } + break; + case TPACPI_VIDEO_NEW: + res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && + acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); + break; + default: + return -ENOSYS; + } + + return (res)? 0 : -EIO; + } + + static int video_autosw_get(void) + { + int autosw = 0; + + switch (video_supported) { + case TPACPI_VIDEO_570: + if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) + return -EIO; + break; + case TPACPI_VIDEO_770: + case TPACPI_VIDEO_NEW: + if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) + return -EIO; + break; + default: + return -ENOSYS; + } + + return autosw & 1; + } + + static int video_autosw_set(int enable) + { + if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0)) + return -EIO; + return 0; + } + + static int video_outputsw_cycle(void) + { + int autosw = video_autosw_get(); + int res; + + if (autosw < 0) + return autosw; + + switch (video_supported) { + case TPACPI_VIDEO_570: + res = video_autosw_set(1); + if (res) + return res; + res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); + break; + case TPACPI_VIDEO_770: + case TPACPI_VIDEO_NEW: + res = video_autosw_set(1); + if (res) + return res; + res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); + break; + default: + return -ENOSYS; + } + if (!autosw && video_autosw_set(autosw)) { + printk(TPACPI_ERR + "video auto-switch left enabled due to error\n"); + return -EIO; + } + + return (res)? 0 : -EIO; + } + + static int video_expand_toggle(void) + { + switch (video_supported) { + case TPACPI_VIDEO_570: + return acpi_evalf(ec_handle, NULL, "_Q17", "v")? + 0 : -EIO; + case TPACPI_VIDEO_770: + return acpi_evalf(vid_handle, NULL, "VEXP", "v")? + 0 : -EIO; + case TPACPI_VIDEO_NEW: + return acpi_evalf(NULL, NULL, "\\VEXP", "v")? + 0 : -EIO; + default: + return -ENOSYS; + } + /* not reached */ + } + + static int video_read(char *p) + { + int status, autosw; + int len = 0; + + if (video_supported == TPACPI_VIDEO_NONE) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + return len; + } + + status = video_outputsw_get(); + if (status < 0) + return status; + + autosw = video_autosw_get(); + if (autosw < 0) + return autosw; + + len += sprintf(p + len, "status:\t\tsupported\n"); + len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0)); + len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1)); + if (video_supported == TPACPI_VIDEO_NEW) + len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3)); + len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0)); + len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n"); + len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n"); + if (video_supported == TPACPI_VIDEO_NEW) + len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n"); + len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n"); + len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n"); + + return len; + } + + static int video_write(char *buf) + { + char *cmd; + int enable, disable, status; + int res; + + if (video_supported == TPACPI_VIDEO_NONE) + return -ENODEV; + + enable = 0; + disable = 0; + + while ((cmd = next_cmd(&buf))) { + if (strlencmp(cmd, "lcd_enable") == 0) { + enable |= TP_ACPI_VIDEO_S_LCD; + } else if (strlencmp(cmd, "lcd_disable") == 0) { + disable |= TP_ACPI_VIDEO_S_LCD; + } else if (strlencmp(cmd, "crt_enable") == 0) { + enable |= TP_ACPI_VIDEO_S_CRT; + } else if (strlencmp(cmd, "crt_disable") == 0) { + disable |= TP_ACPI_VIDEO_S_CRT; + } else if (video_supported == TPACPI_VIDEO_NEW && + strlencmp(cmd, "dvi_enable") == 0) { + enable |= TP_ACPI_VIDEO_S_DVI; + } else if (video_supported == TPACPI_VIDEO_NEW && + strlencmp(cmd, "dvi_disable") == 0) { + disable |= TP_ACPI_VIDEO_S_DVI; + } else if (strlencmp(cmd, "auto_enable") == 0) { + res = video_autosw_set(1); + if (res) + return res; + } else if (strlencmp(cmd, "auto_disable") == 0) { + res = video_autosw_set(0); + if (res) + return res; + } else if (strlencmp(cmd, "video_switch") == 0) { + res = video_outputsw_cycle(); + if (res) + return res; + } else if (strlencmp(cmd, "expand_toggle") == 0) { + res = video_expand_toggle(); + if (res) + return res; + } else + return -EINVAL; + } + + if (enable || disable) { + status = video_outputsw_get(); + if (status < 0) + return status; + res = video_outputsw_set((status & ~disable) | enable); + if (res) + return res; + } + + return 0; + } + + static struct ibm_struct video_driver_data = { + .name = "video", + .read = video_read, + .write = video_write, + .exit = video_exit, + }; + + #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ + + /************************************************************************* + * Light (thinklight) subdriver + */ + + TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ + TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ + + static int light_get_status(void) + { + int status = 0; + + if (tp_features.light_status) { + if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) + return -EIO; + return (!!status); + } + + return -ENXIO; + } + + static int light_set_status(int status) + { + int rc; + + if (tp_features.light) { + if (cmos_handle) { + rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", + (status)? + TP_CMOS_THINKLIGHT_ON : + TP_CMOS_THINKLIGHT_OFF); + } else { + rc = acpi_evalf(lght_handle, NULL, NULL, "vd", + (status)? 1 : 0); + } + return (rc)? 0 : -EIO; + } + + return -ENXIO; + } + + static void light_set_status_worker(struct work_struct *work) + { + struct tpacpi_led_classdev *data = + container_of(work, struct tpacpi_led_classdev, work); + + if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) + light_set_status((data->new_brightness != LED_OFF)); + } + + static void light_sysfs_set(struct led_classdev *led_cdev, + enum led_brightness brightness) + { + struct tpacpi_led_classdev *data = + container_of(led_cdev, + struct tpacpi_led_classdev, + led_classdev); + data->new_brightness = brightness; + queue_work(tpacpi_wq, &data->work); + } + + static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) + { + return (light_get_status() == 1)? LED_FULL : LED_OFF; + } + + static struct tpacpi_led_classdev tpacpi_led_thinklight = { + .led_classdev = { + .name = "tpacpi::thinklight", + .brightness_set = &light_sysfs_set, + .brightness_get = &light_sysfs_get, + } + }; + + static int __init light_init(struct ibm_init_struct *iibm) + { + int rc; + + vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(ledb); + TPACPI_ACPIHANDLE_INIT(lght); + TPACPI_ACPIHANDLE_INIT(cmos); + INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker); + + /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ + tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; + + if (tp_features.light) + /* light status not supported on + 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ + tp_features.light_status = + acpi_evalf(ec_handle, NULL, "KBLT", "qv"); + + vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", + str_supported(tp_features.light), + str_supported(tp_features.light_status)); + + if (!tp_features.light) + return 1; + + rc = led_classdev_register(&tpacpi_pdev->dev, + &tpacpi_led_thinklight.led_classdev); + + if (rc < 0) { + tp_features.light = 0; + tp_features.light_status = 0; + } else { + rc = 0; + } + + return rc; + } + + static void light_exit(void) + { + led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); + if (work_pending(&tpacpi_led_thinklight.work)) + flush_workqueue(tpacpi_wq); + } + + static int light_read(char *p) + { + int len = 0; + int status; + + if (!tp_features.light) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + } else if (!tp_features.light_status) { + len += sprintf(p + len, "status:\t\tunknown\n"); + len += sprintf(p + len, "commands:\ton, off\n"); + } else { + status = light_get_status(); + if (status < 0) + return status; + len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0)); + len += sprintf(p + len, "commands:\ton, off\n"); + } + + return len; + } + + static int light_write(char *buf) + { + char *cmd; + int newstatus = 0; + + if (!tp_features.light) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (strlencmp(cmd, "on") == 0) { + newstatus = 1; + } else if (strlencmp(cmd, "off") == 0) { + newstatus = 0; + } else + return -EINVAL; + } + + return light_set_status(newstatus); + } + + static struct ibm_struct light_driver_data = { + .name = "light", + .read = light_read, + .write = light_write, + .exit = light_exit, + }; + + /************************************************************************* + * Dock subdriver + */ + + #ifdef CONFIG_THINKPAD_ACPI_DOCK + + static void dock_notify(struct ibm_struct *ibm, u32 event); + static int dock_read(char *p); + static int dock_write(char *buf); + + TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */ + "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */ + "\\_SB.PCI0.PCI1.DOCK", /* all others */ + "\\_SB.PCI.ISA.SLCE", /* 570 */ + ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */ + + /* don't list other alternatives as we install a notify handler on the 570 */ + TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */ + + static const struct acpi_device_id ibm_pci_device_ids[] = { + {PCI_ROOT_HID_STRING, 0}, + {"", 0}, + }; + + static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = { + { + .notify = dock_notify, + .handle = &dock_handle, + .type = ACPI_SYSTEM_NOTIFY, + }, + { + /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING. + * We just use it to get notifications of dock hotplug + * in very old thinkpads */ + .hid = ibm_pci_device_ids, + .notify = dock_notify, + .handle = &pci_handle, + .type = ACPI_SYSTEM_NOTIFY, + }, + }; + + static struct ibm_struct dock_driver_data[2] = { + { + .name = "dock", + .read = dock_read, + .write = dock_write, + .acpi = &ibm_dock_acpidriver[0], + }, + { + .name = "dock", + .acpi = &ibm_dock_acpidriver[1], + }, + }; + + #define dock_docked() (_sta(dock_handle) & 1) + + static int __init dock_init(struct ibm_init_struct *iibm) + { + vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(dock); + + vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n", + str_supported(dock_handle != NULL)); + + return (dock_handle)? 0 : 1; + } + + static int __init dock_init2(struct ibm_init_struct *iibm) + { + int dock2_needed; + + vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n"); + + if (dock_driver_data[0].flags.acpi_driver_registered && + dock_driver_data[0].flags.acpi_notify_installed) { + TPACPI_ACPIHANDLE_INIT(pci); + dock2_needed = (pci_handle != NULL); + vdbg_printk(TPACPI_DBG_INIT, + "dock PCI handler for the TP 570 is %s\n", + str_supported(dock2_needed)); + } else { + vdbg_printk(TPACPI_DBG_INIT, + "dock subdriver part 2 not required\n"); + dock2_needed = 0; + } + + return (dock2_needed)? 0 : 1; + } + + static void dock_notify(struct ibm_struct *ibm, u32 event) + { + int docked = dock_docked(); + int pci = ibm->acpi->hid && ibm->acpi->device && + acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids); + int data; + + if (event == 1 && !pci) /* 570 */ + data = 1; /* button */ + else if (event == 1 && pci) /* 570 */ + data = 3; /* dock */ + else if (event == 3 && docked) + data = 1; /* button */ + else if (event == 3 && !docked) + data = 2; /* undock */ + else if (event == 0 && docked) + data = 3; /* dock */ + else { + printk(TPACPI_ERR "unknown dock event %d, status %d\n", + event, _sta(dock_handle)); + data = 0; /* unknown */ + } + acpi_bus_generate_proc_event(ibm->acpi->device, event, data); + acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, + ibm->acpi->device->dev.bus_id, + event, data); + } + + static int dock_read(char *p) + { + int len = 0; + int docked = dock_docked(); + + if (!dock_handle) + len += sprintf(p + len, "status:\t\tnot supported\n"); + else if (!docked) + len += sprintf(p + len, "status:\t\tundocked\n"); + else { + len += sprintf(p + len, "status:\t\tdocked\n"); + len += sprintf(p + len, "commands:\tdock, undock\n"); + } + + return len; + } + + static int dock_write(char *buf) + { + char *cmd; + + if (!dock_docked()) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (strlencmp(cmd, "undock") == 0) { + if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) || + !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1)) + return -EIO; + } else if (strlencmp(cmd, "dock") == 0) { + if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1)) + return -EIO; + } else + return -EINVAL; + } + + return 0; + } + + #endif /* CONFIG_THINKPAD_ACPI_DOCK */ + + /************************************************************************* + * Bay subdriver + */ + + #ifdef CONFIG_THINKPAD_ACPI_BAY + + TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */ + "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */ + "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */ + "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */ + ); /* A21e, R30, R31 */ + TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */ + "_EJ0", /* all others */ + ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */ + TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */ + "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */ + ); /* all others */ + TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */ + "_EJ0", /* 770x */ + ); /* all others */ + + static int __init bay_init(struct ibm_init_struct *iibm) + { + vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(bay); + if (bay_handle) + TPACPI_ACPIHANDLE_INIT(bay_ej); + TPACPI_ACPIHANDLE_INIT(bay2); + if (bay2_handle) + TPACPI_ACPIHANDLE_INIT(bay2_ej); + + tp_features.bay_status = bay_handle && + acpi_evalf(bay_handle, NULL, "_STA", "qv"); + tp_features.bay_status2 = bay2_handle && + acpi_evalf(bay2_handle, NULL, "_STA", "qv"); + + tp_features.bay_eject = bay_handle && bay_ej_handle && + (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental); + tp_features.bay_eject2 = bay2_handle && bay2_ej_handle && + (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental); + + vdbg_printk(TPACPI_DBG_INIT, + "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n", + str_supported(tp_features.bay_status), + str_supported(tp_features.bay_eject), + str_supported(tp_features.bay_status2), + str_supported(tp_features.bay_eject2)); + + return (tp_features.bay_status || tp_features.bay_eject || + tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1; + } + + static void bay_notify(struct ibm_struct *ibm, u32 event) + { + acpi_bus_generate_proc_event(ibm->acpi->device, event, 0); + acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class, + ibm->acpi->device->dev.bus_id, + event, 0); + } + + #define bay_occupied(b) (_sta(b##_handle) & 1) + + static int bay_read(char *p) + { + int len = 0; + int occupied = bay_occupied(bay); + int occupied2 = bay_occupied(bay2); + int eject, eject2; + + len += sprintf(p + len, "status:\t\t%s\n", + tp_features.bay_status ? + (occupied ? "occupied" : "unoccupied") : + "not supported"); + if (tp_features.bay_status2) + len += sprintf(p + len, "status2:\t%s\n", occupied2 ? + "occupied" : "unoccupied"); + + eject = tp_features.bay_eject && occupied; + eject2 = tp_features.bay_eject2 && occupied2; + + if (eject && eject2) + len += sprintf(p + len, "commands:\teject, eject2\n"); + else if (eject) + len += sprintf(p + len, "commands:\teject\n"); + else if (eject2) + len += sprintf(p + len, "commands:\teject2\n"); + + return len; + } + + static int bay_write(char *buf) + { + char *cmd; + + if (!tp_features.bay_eject && !tp_features.bay_eject2) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) { + if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1)) + return -EIO; + } else if (tp_features.bay_eject2 && + strlencmp(cmd, "eject2") == 0) { + if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1)) + return -EIO; + } else + return -EINVAL; + } + + return 0; + } + + static struct tp_acpi_drv_struct ibm_bay_acpidriver = { + .notify = bay_notify, + .handle = &bay_handle, + .type = ACPI_SYSTEM_NOTIFY, + }; + + static struct ibm_struct bay_driver_data = { + .name = "bay", + .read = bay_read, + .write = bay_write, + .acpi = &ibm_bay_acpidriver, + }; + + #endif /* CONFIG_THINKPAD_ACPI_BAY */ + + /************************************************************************* + * CMOS subdriver + */ + + /* sysfs cmos_command -------------------------------------------------- */ + static ssize_t cmos_command_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long cmos_cmd; + int res; + + if (parse_strtoul(buf, 21, &cmos_cmd)) + return -EINVAL; + + res = issue_thinkpad_cmos_command(cmos_cmd); + return (res)? res : count; + } + + static struct device_attribute dev_attr_cmos_command = + __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store); + + /* --------------------------------------------------------------------- */ + + static int __init cmos_init(struct ibm_init_struct *iibm) + { + int res; + + vdbg_printk(TPACPI_DBG_INIT, + "initializing cmos commands subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(cmos); + + vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", + str_supported(cmos_handle != NULL)); + + res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); + if (res) + return res; + + return (cmos_handle)? 0 : 1; + } + + static void cmos_exit(void) + { + device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); + } + + static int cmos_read(char *p) + { + int len = 0; + + /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, + R30, R31, T20-22, X20-21 */ + if (!cmos_handle) + len += sprintf(p + len, "status:\t\tnot supported\n"); + else { + len += sprintf(p + len, "status:\t\tsupported\n"); + len += sprintf(p + len, "commands:\t ( is 0-21)\n"); + } + + return len; + } + + static int cmos_write(char *buf) + { + char *cmd; + int cmos_cmd, res; + + while ((cmd = next_cmd(&buf))) { + if (sscanf(cmd, "%u", &cmos_cmd) == 1 && + cmos_cmd >= 0 && cmos_cmd <= 21) { + /* cmos_cmd set */ + } else + return -EINVAL; + + res = issue_thinkpad_cmos_command(cmos_cmd); + if (res) + return res; + } + + return 0; + } + + static struct ibm_struct cmos_driver_data = { + .name = "cmos", + .read = cmos_read, + .write = cmos_write, + .exit = cmos_exit, + }; + + /************************************************************************* + * LED subdriver + */ + + enum led_access_mode { + TPACPI_LED_NONE = 0, + TPACPI_LED_570, /* 570 */ + TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ + TPACPI_LED_NEW, /* all others */ + }; + + enum { /* For TPACPI_LED_OLD */ + TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ + TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ + TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ + }; + + enum led_status_t { + TPACPI_LED_OFF = 0, + TPACPI_LED_ON, + TPACPI_LED_BLINK, + }; + + static enum led_access_mode led_supported; + + TPACPI_HANDLE(led, ec, "SLED", /* 570 */ + "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */ + /* T20-22, X20-21 */ + "LED", /* all others */ + ); /* R30, R31 */ + + #define TPACPI_LED_NUMLEDS 8 + static struct tpacpi_led_classdev *tpacpi_leds; + static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; + static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { + /* there's a limit of 19 chars + NULL before 2.6.26 */ + "tpacpi::power", + "tpacpi:orange:batt", + "tpacpi:green:batt", + "tpacpi::dock_active", + "tpacpi::bay_active", + "tpacpi::dock_batt", + "tpacpi::unknown_led", + "tpacpi::standby", + }; + + static int led_get_status(const unsigned int led) + { + int status; + enum led_status_t led_s; + + switch (led_supported) { + case TPACPI_LED_570: + if (!acpi_evalf(ec_handle, + &status, "GLED", "dd", 1 << led)) + return -EIO; + led_s = (status == 0)? + TPACPI_LED_OFF : + ((status == 1)? + TPACPI_LED_ON : + TPACPI_LED_BLINK); + tpacpi_led_state_cache[led] = led_s; + return led_s; + default: + return -ENXIO; + } + + /* not reached */ + } + + static int led_set_status(const unsigned int led, + const enum led_status_t ledstatus) + { + /* off, on, blink. Index is led_status_t */ + static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; + static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; + + int rc = 0; + + switch (led_supported) { + case TPACPI_LED_570: + /* 570 */ + if (led > 7) + return -EINVAL; + if (!acpi_evalf(led_handle, NULL, NULL, "vdd", + (1 << led), led_sled_arg1[ledstatus])) + rc = -EIO; + break; + case TPACPI_LED_OLD: + /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ + if (led > 7) + return -EINVAL; + rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); + if (rc >= 0) + rc = ec_write(TPACPI_LED_EC_HLBL, + (ledstatus == TPACPI_LED_BLINK) << led); + if (rc >= 0) + rc = ec_write(TPACPI_LED_EC_HLCL, + (ledstatus != TPACPI_LED_OFF) << led); + break; + case TPACPI_LED_NEW: + /* all others */ + if (!acpi_evalf(led_handle, NULL, NULL, "vdd", + led, led_led_arg1[ledstatus])) + rc = -EIO; + break; + default: + rc = -ENXIO; + } + + if (!rc) + tpacpi_led_state_cache[led] = ledstatus; + + return rc; + } + + static void led_sysfs_set_status(unsigned int led, + enum led_brightness brightness) + { + led_set_status(led, + (brightness == LED_OFF) ? + TPACPI_LED_OFF : + (tpacpi_led_state_cache[led] == TPACPI_LED_BLINK) ? + TPACPI_LED_BLINK : TPACPI_LED_ON); + } + + static void led_set_status_worker(struct work_struct *work) + { + struct tpacpi_led_classdev *data = + container_of(work, struct tpacpi_led_classdev, work); + + if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING)) + led_sysfs_set_status(data->led, data->new_brightness); + } + + static void led_sysfs_set(struct led_classdev *led_cdev, + enum led_brightness brightness) + { + struct tpacpi_led_classdev *data = container_of(led_cdev, + struct tpacpi_led_classdev, led_classdev); + + data->new_brightness = brightness; + queue_work(tpacpi_wq, &data->work); + } + + static int led_sysfs_blink_set(struct led_classdev *led_cdev, + unsigned long *delay_on, unsigned long *delay_off) + { + struct tpacpi_led_classdev *data = container_of(led_cdev, + struct tpacpi_led_classdev, led_classdev); + + /* Can we choose the flash rate? */ + if (*delay_on == 0 && *delay_off == 0) { + /* yes. set them to the hardware blink rate (1 Hz) */ + *delay_on = 500; /* ms */ + *delay_off = 500; /* ms */ + } else if ((*delay_on != 500) || (*delay_off != 500)) + return -EINVAL; + + data->new_brightness = TPACPI_LED_BLINK; + queue_work(tpacpi_wq, &data->work); + + return 0; + } + + static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) + { + int rc; + + struct tpacpi_led_classdev *data = container_of(led_cdev, + struct tpacpi_led_classdev, led_classdev); + + rc = led_get_status(data->led); + + if (rc == TPACPI_LED_OFF || rc < 0) + rc = LED_OFF; /* no error handling in led class :( */ + else + rc = LED_FULL; + + return rc; + } + + static void led_exit(void) + { + unsigned int i; + + for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { + if (tpacpi_leds[i].led_classdev.name) + led_classdev_unregister(&tpacpi_leds[i].led_classdev); + } + + kfree(tpacpi_leds); + } + + static int __init led_init(struct ibm_init_struct *iibm) + { + unsigned int i; + int rc; + + vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(led); + + if (!led_handle) + /* led not supported on R30, R31 */ + led_supported = TPACPI_LED_NONE; + else if (strlencmp(led_path, "SLED") == 0) + /* 570 */ + led_supported = TPACPI_LED_570; + else if (strlencmp(led_path, "SYSL") == 0) + /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ + led_supported = TPACPI_LED_OLD; + else + /* all others */ + led_supported = TPACPI_LED_NEW; + + vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", + str_supported(led_supported), led_supported); + + tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, + GFP_KERNEL); + if (!tpacpi_leds) { + printk(TPACPI_ERR "Out of memory for LED data\n"); + return -ENOMEM; + } + + for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { + tpacpi_leds[i].led = i; + + tpacpi_leds[i].led_classdev.brightness_set = &led_sysfs_set; + tpacpi_leds[i].led_classdev.blink_set = &led_sysfs_blink_set; + if (led_supported == TPACPI_LED_570) + tpacpi_leds[i].led_classdev.brightness_get = + &led_sysfs_get; + + tpacpi_leds[i].led_classdev.name = tpacpi_led_names[i]; + + INIT_WORK(&tpacpi_leds[i].work, led_set_status_worker); + + rc = led_classdev_register(&tpacpi_pdev->dev, + &tpacpi_leds[i].led_classdev); + if (rc < 0) { + tpacpi_leds[i].led_classdev.name = NULL; + led_exit(); + return rc; + } + } + + return (led_supported != TPACPI_LED_NONE)? 0 : 1; + } + + #define str_led_status(s) \ + ((s) == TPACPI_LED_OFF ? "off" : \ + ((s) == TPACPI_LED_ON ? "on" : "blinking")) + + static int led_read(char *p) + { + int len = 0; + + if (!led_supported) { + len += sprintf(p + len, "status:\t\tnot supported\n"); + return len; + } + len += sprintf(p + len, "status:\t\tsupported\n"); + + if (led_supported == TPACPI_LED_570) { + /* 570 */ + int i, status; + for (i = 0; i < 8; i++) { + status = led_get_status(i); + if (status < 0) + return -EIO; + len += sprintf(p + len, "%d:\t\t%s\n", + i, str_led_status(status)); + } + } + + len += sprintf(p + len, "commands:\t" + " on, off, blink ( is 0-7)\n"); + + return len; + } + + static int led_write(char *buf) + { + char *cmd; + int led, rc; + enum led_status_t s; + + if (!led_supported) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7) + return -EINVAL; + + if (strstr(cmd, "off")) { + s = TPACPI_LED_OFF; + } else if (strstr(cmd, "on")) { + s = TPACPI_LED_ON; + } else if (strstr(cmd, "blink")) { + s = TPACPI_LED_BLINK; + } else { + return -EINVAL; + } + + rc = led_set_status(led, s); + if (rc < 0) + return rc; + } + + return 0; + } + + static struct ibm_struct led_driver_data = { + .name = "led", + .read = led_read, + .write = led_write, + .exit = led_exit, + }; + + /************************************************************************* + * Beep subdriver + */ + + TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ + + static int __init beep_init(struct ibm_init_struct *iibm) + { + vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); + + TPACPI_ACPIHANDLE_INIT(beep); + + vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", + str_supported(beep_handle != NULL)); + + return (beep_handle)? 0 : 1; + } + + static int beep_read(char *p) + { + int len = 0; + + if (!beep_handle) + len += sprintf(p + len, "status:\t\tnot supported\n"); + else { + len += sprintf(p + len, "status:\t\tsupported\n"); + len += sprintf(p + len, "commands:\t ( is 0-17)\n"); + } + + return len; + } + + static int beep_write(char *buf) + { + char *cmd; + int beep_cmd; + + if (!beep_handle) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (sscanf(cmd, "%u", &beep_cmd) == 1 && + beep_cmd >= 0 && beep_cmd <= 17) { + /* beep_cmd set */ + } else + return -EINVAL; + if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0)) + return -EIO; + } + + return 0; + } + + static struct ibm_struct beep_driver_data = { + .name = "beep", + .read = beep_read, + .write = beep_write, + }; + + /************************************************************************* + * Thermal subdriver + */ + + enum thermal_access_mode { + TPACPI_THERMAL_NONE = 0, /* No thermal support */ + TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ + TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ + TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ + TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ + }; + + enum { /* TPACPI_THERMAL_TPEC_* */ + TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ + TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ + TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ + }; + + #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ + struct ibm_thermal_sensors_struct { + s32 temp[TPACPI_MAX_THERMAL_SENSORS]; + }; + + static enum thermal_access_mode thermal_read_mode; + + /* idx is zero-based */ + static int thermal_get_sensor(int idx, s32 *value) + { + int t; + s8 tmp; + char tmpi[5]; + + t = TP_EC_THERMAL_TMP0; + + switch (thermal_read_mode) { + #if TPACPI_MAX_THERMAL_SENSORS >= 16 + case TPACPI_THERMAL_TPEC_16: + if (idx >= 8 && idx <= 15) { + t = TP_EC_THERMAL_TMP8; + idx -= 8; + } + /* fallthrough */ + #endif + case TPACPI_THERMAL_TPEC_8: + if (idx <= 7) { + if (!acpi_ec_read(t + idx, &tmp)) + return -EIO; + *value = tmp * 1000; + return 0; + } + break; + + case TPACPI_THERMAL_ACPI_UPDT: + if (idx <= 7) { + snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); + if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) + return -EIO; + if (!acpi_evalf(ec_handle, &t, tmpi, "d")) + return -EIO; + *value = (t - 2732) * 100; + return 0; + } + break; + + case TPACPI_THERMAL_ACPI_TMP07: + if (idx <= 7) { + snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); + if (!acpi_evalf(ec_handle, &t, tmpi, "d")) + return -EIO; + if (t > 127 || t < -127) + t = TP_EC_THERMAL_TMP_NA; + *value = t * 1000; + return 0; + } + break; + + case TPACPI_THERMAL_NONE: + default: + return -ENOSYS; + } + + return -EINVAL; + } + + static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) + { + int res, i; + int n; + + n = 8; + i = 0; + + if (!s) + return -EINVAL; + + if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) + n = 16; + + for (i = 0 ; i < n; i++) { + res = thermal_get_sensor(i, &s->temp[i]); + if (res) + return res; + } + + return n; + } + + /* sysfs temp##_input -------------------------------------------------- */ + + static ssize_t thermal_temp_input_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + struct sensor_device_attribute *sensor_attr = + to_sensor_dev_attr(attr); + int idx = sensor_attr->index; + s32 value; + int res; + + res = thermal_get_sensor(idx, &value); + if (res) + return res; + if (value == TP_EC_THERMAL_TMP_NA * 1000) + return -ENXIO; + + return snprintf(buf, PAGE_SIZE, "%d\n", value); + } + + #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ + SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ + thermal_temp_input_show, NULL, _idxB) + + static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { + THERMAL_SENSOR_ATTR_TEMP(1, 0), + THERMAL_SENSOR_ATTR_TEMP(2, 1), + THERMAL_SENSOR_ATTR_TEMP(3, 2), + THERMAL_SENSOR_ATTR_TEMP(4, 3), + THERMAL_SENSOR_ATTR_TEMP(5, 4), + THERMAL_SENSOR_ATTR_TEMP(6, 5), + THERMAL_SENSOR_ATTR_TEMP(7, 6), + THERMAL_SENSOR_ATTR_TEMP(8, 7), + THERMAL_SENSOR_ATTR_TEMP(9, 8), + THERMAL_SENSOR_ATTR_TEMP(10, 9), + THERMAL_SENSOR_ATTR_TEMP(11, 10), + THERMAL_SENSOR_ATTR_TEMP(12, 11), + THERMAL_SENSOR_ATTR_TEMP(13, 12), + THERMAL_SENSOR_ATTR_TEMP(14, 13), + THERMAL_SENSOR_ATTR_TEMP(15, 14), + THERMAL_SENSOR_ATTR_TEMP(16, 15), + }; + + #define THERMAL_ATTRS(X) \ + &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr + + static struct attribute *thermal_temp_input_attr[] = { + THERMAL_ATTRS(8), + THERMAL_ATTRS(9), + THERMAL_ATTRS(10), + THERMAL_ATTRS(11), + THERMAL_ATTRS(12), + THERMAL_ATTRS(13), + THERMAL_ATTRS(14), + THERMAL_ATTRS(15), + THERMAL_ATTRS(0), + THERMAL_ATTRS(1), + THERMAL_ATTRS(2), + THERMAL_ATTRS(3), + THERMAL_ATTRS(4), + THERMAL_ATTRS(5), + THERMAL_ATTRS(6), + THERMAL_ATTRS(7), + NULL + }; + + static const struct attribute_group thermal_temp_input16_group = { + .attrs = thermal_temp_input_attr + }; + + static const struct attribute_group thermal_temp_input8_group = { + .attrs = &thermal_temp_input_attr[8] + }; + + #undef THERMAL_SENSOR_ATTR_TEMP + #undef THERMAL_ATTRS + + /* --------------------------------------------------------------------- */ + + static int __init thermal_init(struct ibm_init_struct *iibm) + { + u8 t, ta1, ta2; + int i; + int acpi_tmp7; + int res; + + vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); + + acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); + + if (thinkpad_id.ec_model) { + /* + * Direct EC access mode: sensors at registers + * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for + * non-implemented, thermal sensors return 0x80 when + * not available + */ + + ta1 = ta2 = 0; + for (i = 0; i < 8; i++) { + if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { + ta1 |= t; + } else { + ta1 = 0; + break; + } + if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { + ta2 |= t; + } else { + ta1 = 0; + break; + } + } + if (ta1 == 0) { + /* This is sheer paranoia, but we handle it anyway */ + if (acpi_tmp7) { + printk(TPACPI_ERR + "ThinkPad ACPI EC access misbehaving, " + "falling back to ACPI TMPx access " + "mode\n"); + thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; + } else { + printk(TPACPI_ERR + "ThinkPad ACPI EC access misbehaving, " + "disabling thermal sensors access\n"); + thermal_read_mode = TPACPI_THERMAL_NONE; + } + } else { + thermal_read_mode = + (ta2 != 0) ? + TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; + } + } else if (acpi_tmp7) { + if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { + /* 600e/x, 770e, 770x */ + thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; + } else { + /* Standard ACPI TMPx access, max 8 sensors */ + thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; + } + } else { + /* temperatures not supported on 570, G4x, R30, R31, R32 */ + thermal_read_mode = TPACPI_THERMAL_NONE; + } + + vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", + str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), + thermal_read_mode); + + switch (thermal_read_mode) { + case TPACPI_THERMAL_TPEC_16: + res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, + &thermal_temp_input16_group); + if (res) + return res; + break; + case TPACPI_THERMAL_TPEC_8: + case TPACPI_THERMAL_ACPI_TMP07: + case TPACPI_THERMAL_ACPI_UPDT: + res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, + &thermal_temp_input8_group); + if (res) + return res; + break; + case TPACPI_THERMAL_NONE: + default: + return 1; + } + + return 0; + } + + static void thermal_exit(void) + { + switch (thermal_read_mode) { + case TPACPI_THERMAL_TPEC_16: + sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, + &thermal_temp_input16_group); + break; + case TPACPI_THERMAL_TPEC_8: + case TPACPI_THERMAL_ACPI_TMP07: + case TPACPI_THERMAL_ACPI_UPDT: + sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, + &thermal_temp_input16_group); + break; + case TPACPI_THERMAL_NONE: + default: + break; + } + } + + static int thermal_read(char *p) + { + int len = 0; + int n, i; + struct ibm_thermal_sensors_struct t; + + n = thermal_get_sensors(&t); + if (unlikely(n < 0)) + return n; + + len += sprintf(p + len, "temperatures:\t"); + + if (n > 0) { + for (i = 0; i < (n - 1); i++) + len += sprintf(p + len, "%d ", t.temp[i] / 1000); + len += sprintf(p + len, "%d\n", t.temp[i] / 1000); + } else + len += sprintf(p + len, "not supported\n"); + + return len; + } + + static struct ibm_struct thermal_driver_data = { + .name = "thermal", + .read = thermal_read, + .exit = thermal_exit, + }; + + /************************************************************************* + * EC Dump subdriver + */ + + static u8 ecdump_regs[256]; + + static int ecdump_read(char *p) + { + int len = 0; + int i, j; + u8 v; + + len += sprintf(p + len, "EC " + " +00 +01 +02 +03 +04 +05 +06 +07" + " +08 +09 +0a +0b +0c +0d +0e +0f\n"); + for (i = 0; i < 256; i += 16) { + len += sprintf(p + len, "EC 0x%02x:", i); + for (j = 0; j < 16; j++) { + if (!acpi_ec_read(i + j, &v)) + break; + if (v != ecdump_regs[i + j]) + len += sprintf(p + len, " *%02x", v); + else + len += sprintf(p + len, " %02x", v); + ecdump_regs[i + j] = v; + } + len += sprintf(p + len, "\n"); + if (j != 16) + break; + } + + /* These are way too dangerous to advertise openly... */ + #if 0 + len += sprintf(p + len, "commands:\t0x 0x" + " ( is 00-ff, is 00-ff)\n"); + len += sprintf(p + len, "commands:\t0x " + " ( is 00-ff, is 0-255)\n"); + #endif + return len; + } + + static int ecdump_write(char *buf) + { + char *cmd; + int i, v; + + while ((cmd = next_cmd(&buf))) { + if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) { + /* i and v set */ + } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) { + /* i and v set */ + } else + return -EINVAL; + if (i >= 0 && i < 256 && v >= 0 && v < 256) { + if (!acpi_ec_write(i, v)) + return -EIO; + } else + return -EINVAL; + } + + return 0; + } + + static struct ibm_struct ecdump_driver_data = { + .name = "ecdump", + .read = ecdump_read, + .write = ecdump_write, + .flags.experimental = 1, + }; + + /************************************************************************* + * Backlight/brightness subdriver + */ + + #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" + + enum { + TP_EC_BACKLIGHT = 0x31, + + /* TP_EC_BACKLIGHT bitmasks */ + TP_EC_BACKLIGHT_LVLMSK = 0x1F, + TP_EC_BACKLIGHT_CMDMSK = 0xE0, + TP_EC_BACKLIGHT_MAPSW = 0x20, + }; + + static struct backlight_device *ibm_backlight_device; + static int brightness_mode; + static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ + + static struct mutex brightness_mutex; + + /* + * ThinkPads can read brightness from two places: EC 0x31, or + * CMOS NVRAM byte 0x5E, bits 0-3. + * + * EC 0x31 has the following layout + * Bit 7: unknown function + * Bit 6: unknown function + * Bit 5: Z: honour scale changes, NZ: ignore scale changes + * Bit 4: must be set to zero to avoid problems + * Bit 3-0: backlight brightness level + * + * brightness_get_raw returns status data in the EC 0x31 layout + */ + static int brightness_get_raw(int *status) + { + u8 lec = 0, lcmos = 0, level = 0; + + if (brightness_mode & 1) { + if (!acpi_ec_read(TP_EC_BACKLIGHT, &lec)) + return -EIO; + level = lec & TP_EC_BACKLIGHT_LVLMSK; + }; + if (brightness_mode & 2) { + lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) + & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) + >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; + lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07; + level = lcmos; + } + + if (brightness_mode == 3) { + *status = lec; /* Prefer EC, CMOS is just a backing store */ + lec &= TP_EC_BACKLIGHT_LVLMSK; + if (lec == lcmos) + tp_warned.bright_cmos_ec_unsync = 0; + else { + if (!tp_warned.bright_cmos_ec_unsync) { + printk(TPACPI_ERR + "CMOS NVRAM (%u) and EC (%u) do not " + "agree on display brightness level\n", + (unsigned int) lcmos, + (unsigned int) lec); + tp_warned.bright_cmos_ec_unsync = 1; + } + return -EIO; + } + } else { + *status = level; + } + + return 0; + } + + /* May return EINTR which can always be mapped to ERESTARTSYS */ + static int brightness_set(int value) + { + int cmos_cmd, inc, i, res; + int current_value; + int command_bits; + + if (value > ((tp_features.bright_16levels)? 15 : 7) || + value < 0) + return -EINVAL; + + res = mutex_lock_interruptible(&brightness_mutex); + if (res < 0) + return res; + + res = brightness_get_raw(¤t_value); + if (res < 0) + goto errout; + + command_bits = current_value & TP_EC_BACKLIGHT_CMDMSK; + current_value &= TP_EC_BACKLIGHT_LVLMSK; + + cmos_cmd = value > current_value ? + TP_CMOS_BRIGHTNESS_UP : + TP_CMOS_BRIGHTNESS_DOWN; + inc = (value > current_value)? 1 : -1; + + res = 0; + for (i = current_value; i != value; i += inc) { + if ((brightness_mode & 2) && + issue_thinkpad_cmos_command(cmos_cmd)) { + res = -EIO; + goto errout; + } + if ((brightness_mode & 1) && + !acpi_ec_write(TP_EC_BACKLIGHT, + (i + inc) | command_bits)) { + res = -EIO; + goto errout;; + } + } + + errout: + mutex_unlock(&brightness_mutex); + return res; + } + + /* sysfs backlight class ----------------------------------------------- */ + + static int brightness_update_status(struct backlight_device *bd) + { + /* it is the backlight class's job (caller) to handle + * EINTR and other errors properly */ + return brightness_set( + (bd->props.fb_blank == FB_BLANK_UNBLANK && + bd->props.power == FB_BLANK_UNBLANK) ? + bd->props.brightness : 0); + } + + static int brightness_get(struct backlight_device *bd) + { + int status, res; + + res = brightness_get_raw(&status); + if (res < 0) + return 0; /* FIXME: teach backlight about error handling */ + + return status & TP_EC_BACKLIGHT_LVLMSK; + } + + static struct backlight_ops ibm_backlight_data = { + .get_brightness = brightness_get, + .update_status = brightness_update_status, + }; + + /* --------------------------------------------------------------------- */ + + static int __init brightness_init(struct ibm_init_struct *iibm) + { + int b; + + vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); + + mutex_init(&brightness_mutex); + + /* + * We always attempt to detect acpi support, so as to switch + * Lenovo Vista BIOS to ACPI brightness mode even if we are not + * going to publish a backlight interface + */ + b = tpacpi_check_std_acpi_brightness_support(); + if (b > 0) { + + if (acpi_video_backlight_support()) { + if (brightness_enable > 1) { + printk(TPACPI_NOTICE + "Standard ACPI backlight interface " + "available, not loading native one.\n"); + return 1; + } else if (brightness_enable == 1) { + printk(TPACPI_NOTICE + "Backlight control force enabled, even if standard " + "ACPI backlight interface is available\n"); + } + } else { + if (brightness_enable > 1) { + printk(TPACPI_NOTICE + "Standard ACPI backlight interface not " + "available, thinkpad_acpi native " + "brightness control enabled\n"); + } + } + } + + if (!brightness_enable) { + dbg_printk(TPACPI_DBG_INIT, + "brightness support disabled by " + "module parameter\n"); + return 1; + } + + if (b > 16) { + printk(TPACPI_ERR + "Unsupported brightness interface, " + "please contact %s\n", TPACPI_MAIL); + return 1; + } + if (b == 16) + tp_features.bright_16levels = 1; + + if (!brightness_mode) { + if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) + brightness_mode = 2; + else + brightness_mode = 3; + + dbg_printk(TPACPI_DBG_INIT, "selected brightness_mode=%d\n", + brightness_mode); + } + + if (brightness_mode > 3) + return -EINVAL; + + if (brightness_get_raw(&b) < 0) + return 1; + + if (tp_features.bright_16levels) + printk(TPACPI_INFO + "detected a 16-level brightness capable ThinkPad\n"); + + ibm_backlight_device = backlight_device_register( + TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL, + &ibm_backlight_data); + if (IS_ERR(ibm_backlight_device)) { + printk(TPACPI_ERR "Could not register backlight device\n"); + return PTR_ERR(ibm_backlight_device); + } + vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n"); + + ibm_backlight_device->props.max_brightness = + (tp_features.bright_16levels)? 15 : 7; + ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; + backlight_update_status(ibm_backlight_device); + + return 0; + } + + static void brightness_exit(void) + { + if (ibm_backlight_device) { + vdbg_printk(TPACPI_DBG_EXIT, + "calling backlight_device_unregister()\n"); + backlight_device_unregister(ibm_backlight_device); + } + } + + static int brightness_read(char *p) + { + int len = 0; + int level; + + level = brightness_get(NULL); + if (level < 0) { + len += sprintf(p + len, "level:\t\tunreadable\n"); + } else { + len += sprintf(p + len, "level:\t\t%d\n", level); + len += sprintf(p + len, "commands:\tup, down\n"); + len += sprintf(p + len, "commands:\tlevel " + " ( is 0-%d)\n", + (tp_features.bright_16levels) ? 15 : 7); + } + + return len; + } + + static int brightness_write(char *buf) + { + int level; + int rc; + char *cmd; + int max_level = (tp_features.bright_16levels) ? 15 : 7; + + level = brightness_get(NULL); + if (level < 0) + return level; + + while ((cmd = next_cmd(&buf))) { + if (strlencmp(cmd, "up") == 0) { + if (level < max_level) + level++; + } else if (strlencmp(cmd, "down") == 0) { + if (level > 0) + level--; + } else if (sscanf(cmd, "level %d", &level) == 1 && + level >= 0 && level <= max_level) { + /* new level set */ + } else + return -EINVAL; + } + + /* + * Now we know what the final level should be, so we try to set it. + * Doing it this way makes the syscall restartable in case of EINTR + */ + rc = brightness_set(level); + return (rc == -EINTR)? ERESTARTSYS : rc; + } + + static struct ibm_struct brightness_driver_data = { + .name = "brightness", + .read = brightness_read, + .write = brightness_write, + .exit = brightness_exit, + }; + + /************************************************************************* + * Volume subdriver + */ + + static int volume_offset = 0x30; + + static int volume_read(char *p) + { + int len = 0; + u8 level; + + if (!acpi_ec_read(volume_offset, &level)) { + len += sprintf(p + len, "level:\t\tunreadable\n"); + } else { + len += sprintf(p + len, "level:\t\t%d\n", level & 0xf); + len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6)); + len += sprintf(p + len, "commands:\tup, down, mute\n"); + len += sprintf(p + len, "commands:\tlevel " + " ( is 0-15)\n"); + } + + return len; + } + + static int volume_write(char *buf) + { + int cmos_cmd, inc, i; + u8 level, mute; + int new_level, new_mute; + char *cmd; + + while ((cmd = next_cmd(&buf))) { + if (!acpi_ec_read(volume_offset, &level)) + return -EIO; + new_mute = mute = level & 0x40; + new_level = level = level & 0xf; + + if (strlencmp(cmd, "up") == 0) { + if (mute) + new_mute = 0; + else + new_level = level == 15 ? 15 : level + 1; + } else if (strlencmp(cmd, "down") == 0) { + if (mute) + new_mute = 0; + else + new_level = level == 0 ? 0 : level - 1; + } else if (sscanf(cmd, "level %d", &new_level) == 1 && + new_level >= 0 && new_level <= 15) { + /* new_level set */ + } else if (strlencmp(cmd, "mute") == 0) { + new_mute = 0x40; + } else + return -EINVAL; + + if (new_level != level) { + /* mute doesn't change */ + + cmos_cmd = (new_level > level) ? + TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN; + inc = new_level > level ? 1 : -1; + + if (mute && (issue_thinkpad_cmos_command(cmos_cmd) || + !acpi_ec_write(volume_offset, level))) + return -EIO; + + for (i = level; i != new_level; i += inc) + if (issue_thinkpad_cmos_command(cmos_cmd) || + !acpi_ec_write(volume_offset, i + inc)) + return -EIO; + + if (mute && + (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) || + !acpi_ec_write(volume_offset, new_level + mute))) { + return -EIO; + } + } + + if (new_mute != mute) { + /* level doesn't change */ + + cmos_cmd = (new_mute) ? + TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP; + + if (issue_thinkpad_cmos_command(cmos_cmd) || + !acpi_ec_write(volume_offset, level + new_mute)) + return -EIO; + } + } + + return 0; + } + + static struct ibm_struct volume_driver_data = { + .name = "volume", + .read = volume_read, + .write = volume_write, + }; + + /************************************************************************* + * Fan subdriver + */ + + /* + * FAN ACCESS MODES + * + * TPACPI_FAN_RD_ACPI_GFAN: + * ACPI GFAN method: returns fan level + * + * see TPACPI_FAN_WR_ACPI_SFAN + * EC 0x2f (HFSP) not available if GFAN exists + * + * TPACPI_FAN_WR_ACPI_SFAN: + * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) + * + * EC 0x2f (HFSP) might be available *for reading*, but do not use + * it for writing. + * + * TPACPI_FAN_WR_TPEC: + * ThinkPad EC register 0x2f (HFSP): fan control loop mode + * Supported on almost all ThinkPads + * + * Fan speed changes of any sort (including those caused by the + * disengaged mode) are usually done slowly by the firmware as the + * maximum ammount of fan duty cycle change per second seems to be + * limited. + * + * Reading is not available if GFAN exists. + * Writing is not available if SFAN exists. + * + * Bits + * 7 automatic mode engaged; + * (default operation mode of the ThinkPad) + * fan level is ignored in this mode. + * 6 full speed mode (takes precedence over bit 7); + * not available on all thinkpads. May disable + * the tachometer while the fan controller ramps up + * the speed (which can take up to a few *minutes*). + * Speeds up fan to 100% duty-cycle, which is far above + * the standard RPM levels. It is not impossible that + * it could cause hardware damage. + * 5-3 unused in some models. Extra bits for fan level + * in others, but still useless as all values above + * 7 map to the same speed as level 7 in these models. + * 2-0 fan level (0..7 usually) + * 0x00 = stop + * 0x07 = max (set when temperatures critical) + * Some ThinkPads may have other levels, see + * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) + * + * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at + * boot. Apparently the EC does not intialize it, so unless ACPI DSDT + * does so, its initial value is meaningless (0x07). + * + * For firmware bugs, refer to: + * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues + * + * ---- + * + * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): + * Main fan tachometer reading (in RPM) + * + * This register is present on all ThinkPads with a new-style EC, and + * it is known not to be present on the A21m/e, and T22, as there is + * something else in offset 0x84 according to the ACPI DSDT. Other + * ThinkPads from this same time period (and earlier) probably lack the + * tachometer as well. + * + * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare + * was never fixed by IBM to report the EC firmware version string + * probably support the tachometer (like the early X models), so + * detecting it is quite hard. We need more data to know for sure. + * + * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings + * might result. + * + * FIRMWARE BUG: may go stale while the EC is switching to full speed + * mode. + * + * For firmware bugs, refer to: + * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues + * + * TPACPI_FAN_WR_ACPI_FANS: + * ThinkPad X31, X40, X41. Not available in the X60. + * + * FANS ACPI handle: takes three arguments: low speed, medium speed, + * high speed. ACPI DSDT seems to map these three speeds to levels + * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH + * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") + * + * The speeds are stored on handles + * (FANA:FAN9), (FANC:FANB), (FANE:FAND). + * + * There are three default speed sets, acessible as handles: + * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H + * + * ACPI DSDT switches which set is in use depending on various + * factors. + * + * TPACPI_FAN_WR_TPEC is also available and should be used to + * command the fan. The X31/X40/X41 seems to have 8 fan levels, + * but the ACPI tables just mention level 7. + */ + + enum { /* Fan control constants */ + fan_status_offset = 0x2f, /* EC register 0x2f */ + fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) + * 0x84 must be read before 0x85 */ + + TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ + TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ + + TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ + }; + + enum fan_status_access_mode { + TPACPI_FAN_NONE = 0, /* No fan status or control */ + TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ + TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ + }; + + enum fan_control_access_mode { + TPACPI_FAN_WR_NONE = 0, /* No fan control */ + TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ + TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ + TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ + }; + + enum fan_control_commands { + TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ + TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ + TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, + * and also watchdog cmd */ + }; + + static int fan_control_allowed; + + static enum fan_status_access_mode fan_status_access_mode; + static enum fan_control_access_mode fan_control_access_mode; + static enum fan_control_commands fan_control_commands; + + static u8 fan_control_initial_status; + static u8 fan_control_desired_level; + static u8 fan_control_resume_level; + static int fan_watchdog_maxinterval; + + static struct mutex fan_mutex; + + static void fan_watchdog_fire(struct work_struct *ignored); + static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); + + TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ + TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ + "\\FSPD", /* 600e/x, 770e, 770x */ + ); /* all others */ + TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ + "JFNS", /* 770x-JL */ + ); /* all others */ + + /* + * Call with fan_mutex held + */ + static void fan_update_desired_level(u8 status) + { + if ((status & + (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { + if (status > 7) + fan_control_desired_level = 7; + else + fan_control_desired_level = status; + } + } + + static int fan_get_status(u8 *status) + { + u8 s; + + /* TODO: + * Add TPACPI_FAN_RD_ACPI_FANS ? */ + + switch (fan_status_access_mode) { + case TPACPI_FAN_RD_ACPI_GFAN: + /* 570, 600e/x, 770e, 770x */ + + if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d"))) + return -EIO; + + if (likely(status)) + *status = s & 0x07; + + break; + + case TPACPI_FAN_RD_TPEC: + /* all except 570, 600e/x, 770e, 770x */ + if (unlikely(!acpi_ec_read(fan_status_offset, &s))) + return -EIO; + + if (likely(status)) + *status = s; + + break; + + default: + return -ENXIO; + } + + return 0; + } + + static int fan_get_status_safe(u8 *status) + { + int rc; + u8 s; + + if (mutex_lock_interruptible(&fan_mutex)) + return -ERESTARTSYS; + rc = fan_get_status(&s); + if (!rc) + fan_update_desired_level(s); + mutex_unlock(&fan_mutex); + + if (status) + *status = s; + + return rc; + } + + static int fan_get_speed(unsigned int *speed) + { + u8 hi, lo; + + switch (fan_status_access_mode) { + case TPACPI_FAN_RD_TPEC: + /* all except 570, 600e/x, 770e, 770x */ + if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || + !acpi_ec_read(fan_rpm_offset + 1, &hi))) + return -EIO; + + if (likely(speed)) + *speed = (hi << 8) | lo; + + break; + + default: + return -ENXIO; + } + + return 0; + } + + static int fan_set_level(int level) + { + if (!fan_control_allowed) + return -EPERM; + + switch (fan_control_access_mode) { + case TPACPI_FAN_WR_ACPI_SFAN: + if (level >= 0 && level <= 7) { + if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) + return -EIO; + } else + return -EINVAL; + break; + + case TPACPI_FAN_WR_ACPI_FANS: + case TPACPI_FAN_WR_TPEC: + if (!(level & TP_EC_FAN_AUTO) && + !(level & TP_EC_FAN_FULLSPEED) && + ((level < 0) || (level > 7))) + return -EINVAL; + + /* safety net should the EC not support AUTO + * or FULLSPEED mode bits and just ignore them */ + if (level & TP_EC_FAN_FULLSPEED) + level |= 7; /* safety min speed 7 */ + else if (level & TP_EC_FAN_AUTO) + level |= 4; /* safety min speed 4 */ + + if (!acpi_ec_write(fan_status_offset, level)) + return -EIO; + else + tp_features.fan_ctrl_status_undef = 0; + break; + + default: + return -ENXIO; + } + return 0; + } + + static int fan_set_level_safe(int level) + { + int rc; + + if (!fan_control_allowed) + return -EPERM; + + if (mutex_lock_interruptible(&fan_mutex)) + return -ERESTARTSYS; + + if (level == TPACPI_FAN_LAST_LEVEL) + level = fan_control_desired_level; + + rc = fan_set_level(level); + if (!rc) + fan_update_desired_level(level); + + mutex_unlock(&fan_mutex); + return rc; + } + + static int fan_set_enable(void) + { + u8 s; + int rc; + + if (!fan_control_allowed) + return -EPERM; + + if (mutex_lock_interruptible(&fan_mutex)) + return -ERESTARTSYS; + + switch (fan_control_access_mode) { + case TPACPI_FAN_WR_ACPI_FANS: + case TPACPI_FAN_WR_TPEC: + rc = fan_get_status(&s); + if (rc < 0) + break; + + /* Don't go out of emergency fan mode */ + if (s != 7) { + s &= 0x07; + s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ + } + + if (!acpi_ec_write(fan_status_offset, s)) + rc = -EIO; + else { + tp_features.fan_ctrl_status_undef = 0; + rc = 0; + } + break; + + case TPACPI_FAN_WR_ACPI_SFAN: + rc = fan_get_status(&s); + if (rc < 0) + break; + + s &= 0x07; + + /* Set fan to at least level 4 */ + s |= 4; + + if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) + rc = -EIO; + else + rc = 0; + break; + + default: + rc = -ENXIO; + } + + mutex_unlock(&fan_mutex); + return rc; + } + + static int fan_set_disable(void) + { + int rc; + + if (!fan_control_allowed) + return -EPERM; + + if (mutex_lock_interruptible(&fan_mutex)) + return -ERESTARTSYS; + + rc = 0; + switch (fan_control_access_mode) { + case TPACPI_FAN_WR_ACPI_FANS: + case TPACPI_FAN_WR_TPEC: + if (!acpi_ec_write(fan_status_offset, 0x00)) + rc = -EIO; + else { + fan_control_desired_level = 0; + tp_features.fan_ctrl_status_undef = 0; + } + break; + + case TPACPI_FAN_WR_ACPI_SFAN: + if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) + rc = -EIO; + else + fan_control_desired_level = 0; + break; + + default: + rc = -ENXIO; + } + + + mutex_unlock(&fan_mutex); + return rc; + } + + static int fan_set_speed(int speed) + { + int rc; + + if (!fan_control_allowed) + return -EPERM; + + if (mutex_lock_interruptible(&fan_mutex)) + return -ERESTARTSYS; + + rc = 0; + switch (fan_control_access_mode) { + case TPACPI_FAN_WR_ACPI_FANS: + if (speed >= 0 && speed <= 65535) { + if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", + speed, speed, speed)) + rc = -EIO; + } else + rc = -EINVAL; + break; + + default: + rc = -ENXIO; + } + + mutex_unlock(&fan_mutex); + return rc; + } + + static void fan_watchdog_reset(void) + { + static int fan_watchdog_active; + + if (fan_control_access_mode == TPACPI_FAN_WR_NONE) + return; + + if (fan_watchdog_active) + cancel_delayed_work(&fan_watchdog_task); + + if (fan_watchdog_maxinterval > 0 && + tpacpi_lifecycle != TPACPI_LIFE_EXITING) { + fan_watchdog_active = 1; + if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, + msecs_to_jiffies(fan_watchdog_maxinterval + * 1000))) { + printk(TPACPI_ERR + "failed to queue the fan watchdog, " + "watchdog will not trigger\n"); + } + } else + fan_watchdog_active = 0; + } + + static void fan_watchdog_fire(struct work_struct *ignored) + { + int rc; + + if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) + return; + + printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); + rc = fan_set_enable(); + if (rc < 0) { + printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " + "will try again later...\n", -rc); + /* reschedule for later */ + fan_watchdog_reset(); + } + } + + /* + * SYSFS fan layout: hwmon compatible (device) + * + * pwm*_enable: + * 0: "disengaged" mode + * 1: manual mode + * 2: native EC "auto" mode (recommended, hardware default) + * + * pwm*: set speed in manual mode, ignored otherwise. + * 0 is level 0; 255 is level 7. Intermediate points done with linear + * interpolation. + * + * fan*_input: tachometer reading, RPM + * + * + * SYSFS fan layout: extensions + * + * fan_watchdog (driver): + * fan watchdog interval in seconds, 0 disables (default), max 120 + */ + + /* sysfs fan pwm1_enable ----------------------------------------------- */ + static ssize_t fan_pwm1_enable_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int res, mode; + u8 status; + + res = fan_get_status_safe(&status); + if (res) + return res; + + if (unlikely(tp_features.fan_ctrl_status_undef)) { + if (status != fan_control_initial_status) { + tp_features.fan_ctrl_status_undef = 0; + } else { + /* Return most likely status. In fact, it + * might be the only possible status */ + status = TP_EC_FAN_AUTO; + } + } + + if (status & TP_EC_FAN_FULLSPEED) { + mode = 0; + } else if (status & TP_EC_FAN_AUTO) { + mode = 2; + } else + mode = 1; + + return snprintf(buf, PAGE_SIZE, "%d\n", mode); + } + + static ssize_t fan_pwm1_enable_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long t; + int res, level; + + if (parse_strtoul(buf, 2, &t)) + return -EINVAL; + + switch (t) { + case 0: + level = TP_EC_FAN_FULLSPEED; + break; + case 1: + level = TPACPI_FAN_LAST_LEVEL; + break; + case 2: + level = TP_EC_FAN_AUTO; + break; + case 3: + /* reserved for software-controlled auto mode */ + return -ENOSYS; + default: + return -EINVAL; + } + + res = fan_set_level_safe(level); + if (res == -ENXIO) + return -EINVAL; + else if (res < 0) + return res; + + fan_watchdog_reset(); + + return count; + } + + static struct device_attribute dev_attr_fan_pwm1_enable = + __ATTR(pwm1_enable, S_IWUSR | S_IRUGO, + fan_pwm1_enable_show, fan_pwm1_enable_store); + + /* sysfs fan pwm1 ------------------------------------------------------ */ + static ssize_t fan_pwm1_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int res; + u8 status; + + res = fan_get_status_safe(&status); + if (res) + return res; + + if (unlikely(tp_features.fan_ctrl_status_undef)) { + if (status != fan_control_initial_status) { + tp_features.fan_ctrl_status_undef = 0; + } else { + status = TP_EC_FAN_AUTO; + } + } + + if ((status & + (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) + status = fan_control_desired_level; + + if (status > 7) + status = 7; + + return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); + } + + static ssize_t fan_pwm1_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + { + unsigned long s; + int rc; + u8 status, newlevel; + + if (parse_strtoul(buf, 255, &s)) + return -EINVAL; + + /* scale down from 0-255 to 0-7 */ + newlevel = (s >> 5) & 0x07; + + if (mutex_lock_interruptible(&fan_mutex)) + return -ERESTARTSYS; + + rc = fan_get_status(&status); + if (!rc && (status & + (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { + rc = fan_set_level(newlevel); + if (rc == -ENXIO) + rc = -EINVAL; + else if (!rc) { + fan_update_desired_level(newlevel); + fan_watchdog_reset(); + } + } + + mutex_unlock(&fan_mutex); + return (rc)? rc : count; + } + + static struct device_attribute dev_attr_fan_pwm1 = + __ATTR(pwm1, S_IWUSR | S_IRUGO, + fan_pwm1_show, fan_pwm1_store); + + /* sysfs fan fan1_input ------------------------------------------------ */ + static ssize_t fan_fan1_input_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + int res; + unsigned int speed; + + res = fan_get_speed(&speed); + if (res < 0) + return res; + + return snprintf(buf, PAGE_SIZE, "%u\n", speed); + } + + static struct device_attribute dev_attr_fan_fan1_input = + __ATTR(fan1_input, S_IRUGO, + fan_fan1_input_show, NULL); + + /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ + static ssize_t fan_fan_watchdog_show(struct device_driver *drv, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); + } + + static ssize_t fan_fan_watchdog_store(struct device_driver *drv, + const char *buf, size_t count) + { + unsigned long t; + + if (parse_strtoul(buf, 120, &t)) + return -EINVAL; + + if (!fan_control_allowed) + return -EPERM; + + fan_watchdog_maxinterval = t; + fan_watchdog_reset(); + + return count; + } + + static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO, + fan_fan_watchdog_show, fan_fan_watchdog_store); + + /* --------------------------------------------------------------------- */ + static struct attribute *fan_attributes[] = { + &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr, + &dev_attr_fan_fan1_input.attr, + NULL + }; + + static const struct attribute_group fan_attr_group = { + .attrs = fan_attributes, + }; + + static int __init fan_init(struct ibm_init_struct *iibm) + { + int rc; + + vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n"); + + mutex_init(&fan_mutex); + fan_status_access_mode = TPACPI_FAN_NONE; + fan_control_access_mode = TPACPI_FAN_WR_NONE; + fan_control_commands = 0; + fan_watchdog_maxinterval = 0; + tp_features.fan_ctrl_status_undef = 0; + fan_control_desired_level = 7; + + TPACPI_ACPIHANDLE_INIT(fans); + TPACPI_ACPIHANDLE_INIT(gfan); + TPACPI_ACPIHANDLE_INIT(sfan); + + if (gfan_handle) { + /* 570, 600e/x, 770e, 770x */ + fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; + } else { + /* all other ThinkPads: note that even old-style + * ThinkPad ECs supports the fan control register */ + if (likely(acpi_ec_read(fan_status_offset, + &fan_control_initial_status))) { + fan_status_access_mode = TPACPI_FAN_RD_TPEC; + + /* In some ThinkPads, neither the EC nor the ACPI + * DSDT initialize the fan status, and it ends up + * being set to 0x07 when it *could* be either + * 0x07 or 0x80. + * + * Enable for TP-1Y (T43), TP-78 (R51e), + * TP-76 (R52), TP-70 (T43, R52), which are known + * to be buggy. */ + if (fan_control_initial_status == 0x07) { + switch (thinkpad_id.ec_model) { + case 0x5931: /* TP-1Y */ + case 0x3837: /* TP-78 */ + case 0x3637: /* TP-76 */ + case 0x3037: /* TP-70 */ + printk(TPACPI_NOTICE + "fan_init: initial fan status " + "is unknown, assuming it is " + "in auto mode\n"); + tp_features.fan_ctrl_status_undef = 1; + ;; + } + } + } else { + printk(TPACPI_ERR + "ThinkPad ACPI EC access misbehaving, " + "fan status and control unavailable\n"); + return 1; + } + } + + if (sfan_handle) { + /* 570, 770x-JL */ + fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; + fan_control_commands |= + TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; + } else { + if (!gfan_handle) { + /* gfan without sfan means no fan control */ + /* all other models implement TP EC 0x2f control */ + + if (fans_handle) { + /* X31, X40, X41 */ + fan_control_access_mode = + TPACPI_FAN_WR_ACPI_FANS; + fan_control_commands |= + TPACPI_FAN_CMD_SPEED | + TPACPI_FAN_CMD_LEVEL | + TPACPI_FAN_CMD_ENABLE; + } else { + fan_control_access_mode = TPACPI_FAN_WR_TPEC; + fan_control_commands |= + TPACPI_FAN_CMD_LEVEL | + TPACPI_FAN_CMD_ENABLE; + } + } + } + + vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n", + str_supported(fan_status_access_mode != TPACPI_FAN_NONE || + fan_control_access_mode != TPACPI_FAN_WR_NONE), + fan_status_access_mode, fan_control_access_mode); + + /* fan control master switch */ + if (!fan_control_allowed) { + fan_control_access_mode = TPACPI_FAN_WR_NONE; + fan_control_commands = 0; + dbg_printk(TPACPI_DBG_INIT, + "fan control features disabled by parameter\n"); + } + + /* update fan_control_desired_level */ + if (fan_status_access_mode != TPACPI_FAN_NONE) + fan_get_status_safe(NULL); + + if (fan_status_access_mode != TPACPI_FAN_NONE || + fan_control_access_mode != TPACPI_FAN_WR_NONE) { + rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj, + &fan_attr_group); + if (rc < 0) + return rc; + + rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, + &driver_attr_fan_watchdog); + if (rc < 0) { + sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, + &fan_attr_group); + return rc; + } + return 0; + } else + return 1; + } + + static void fan_exit(void) + { + vdbg_printk(TPACPI_DBG_EXIT, + "cancelling any pending fan watchdog tasks\n"); + + /* FIXME: can we really do this unconditionally? */ + sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group); + driver_remove_file(&tpacpi_hwmon_pdriver.driver, + &driver_attr_fan_watchdog); + + cancel_delayed_work(&fan_watchdog_task); + flush_workqueue(tpacpi_wq); + } + + static void fan_suspend(pm_message_t state) + { + int rc; + + if (!fan_control_allowed) + return; + + /* Store fan status in cache */ + fan_control_resume_level = 0; + rc = fan_get_status_safe(&fan_control_resume_level); + if (rc < 0) + printk(TPACPI_NOTICE + "failed to read fan level for later " + "restore during resume: %d\n", rc); + + /* if it is undefined, don't attempt to restore it. + * KEEP THIS LAST */ + if (tp_features.fan_ctrl_status_undef) + fan_control_resume_level = 0; + } + + static void fan_resume(void) + { + u8 current_level = 7; + bool do_set = false; + int rc; + + /* DSDT *always* updates status on resume */ + tp_features.fan_ctrl_status_undef = 0; + + if (!fan_control_allowed || + !fan_control_resume_level || + (fan_get_status_safe(¤t_level) < 0)) + return; + + switch (fan_control_access_mode) { + case TPACPI_FAN_WR_ACPI_SFAN: + /* never decrease fan level */ + do_set = (fan_control_resume_level > current_level); + break; + case TPACPI_FAN_WR_ACPI_FANS: + case TPACPI_FAN_WR_TPEC: + /* never decrease fan level, scale is: + * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO + * + * We expect the firmware to set either 7 or AUTO, but we + * handle FULLSPEED out of paranoia. + * + * So, we can safely only restore FULLSPEED or 7, anything + * else could slow the fan. Restoring AUTO is useless, at + * best that's exactly what the DSDT already set (it is the + * slower it uses). + * + * Always keep in mind that the DSDT *will* have set the + * fans to what the vendor supposes is the best level. We + * muck with it only to speed the fan up. + */ + if (fan_control_resume_level != 7 && + !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) + return; + else + do_set = !(current_level & TP_EC_FAN_FULLSPEED) && + (current_level != fan_control_resume_level); + break; + default: + return; + } + if (do_set) { + printk(TPACPI_NOTICE + "restoring fan level to 0x%02x\n", + fan_control_resume_level); + rc = fan_set_level_safe(fan_control_resume_level); + if (rc < 0) + printk(TPACPI_NOTICE + "failed to restore fan level: %d\n", rc); + } + } + + static int fan_read(char *p) + { + int len = 0; + int rc; + u8 status; + unsigned int speed = 0; + + switch (fan_status_access_mode) { + case TPACPI_FAN_RD_ACPI_GFAN: + /* 570, 600e/x, 770e, 770x */ + rc = fan_get_status_safe(&status); + if (rc < 0) + return rc; + + len += sprintf(p + len, "status:\t\t%s\n" + "level:\t\t%d\n", + (status != 0) ? "enabled" : "disabled", status); + break; + + case TPACPI_FAN_RD_TPEC: + /* all except 570, 600e/x, 770e, 770x */ + rc = fan_get_status_safe(&status); + if (rc < 0) + return rc; + + if (unlikely(tp_features.fan_ctrl_status_undef)) { + if (status != fan_control_initial_status) + tp_features.fan_ctrl_status_undef = 0; + else + /* Return most likely status. In fact, it + * might be the only possible status */ + status = TP_EC_FAN_AUTO; + } + + len += sprintf(p + len, "status:\t\t%s\n", + (status != 0) ? "enabled" : "disabled"); + + rc = fan_get_speed(&speed); + if (rc < 0) + return rc; + + len += sprintf(p + len, "speed:\t\t%d\n", speed); + + if (status & TP_EC_FAN_FULLSPEED) + /* Disengaged mode takes precedence */ + len += sprintf(p + len, "level:\t\tdisengaged\n"); + else if (status & TP_EC_FAN_AUTO) + len += sprintf(p + len, "level:\t\tauto\n"); + else + len += sprintf(p + len, "level:\t\t%d\n", status); + break; + + case TPACPI_FAN_NONE: + default: + len += sprintf(p + len, "status:\t\tnot supported\n"); + } + + if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { + len += sprintf(p + len, "commands:\tlevel "); + + switch (fan_control_access_mode) { + case TPACPI_FAN_WR_ACPI_SFAN: + len += sprintf(p + len, " ( is 0-7)\n"); + break; + + default: + len += sprintf(p + len, " ( is 0-7, " + "auto, disengaged, full-speed)\n"); + break; + } + } + + if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) + len += sprintf(p + len, "commands:\tenable, disable\n" + "commands:\twatchdog ( " + "is 0 (off), 1-120 (seconds))\n"); + + if (fan_control_commands & TPACPI_FAN_CMD_SPEED) + len += sprintf(p + len, "commands:\tspeed " + " ( is 0-65535)\n"); + + return len; + } + + static int fan_write_cmd_level(const char *cmd, int *rc) + { + int level; + + if (strlencmp(cmd, "level auto") == 0) + level = TP_EC_FAN_AUTO; + else if ((strlencmp(cmd, "level disengaged") == 0) | + (strlencmp(cmd, "level full-speed") == 0)) + level = TP_EC_FAN_FULLSPEED; + else if (sscanf(cmd, "level %d", &level) != 1) + return 0; + + *rc = fan_set_level_safe(level); + if (*rc == -ENXIO) + printk(TPACPI_ERR "level command accepted for unsupported " + "access mode %d", fan_control_access_mode); + + return 1; + } + + static int fan_write_cmd_enable(const char *cmd, int *rc) + { + if (strlencmp(cmd, "enable") != 0) + return 0; + + *rc = fan_set_enable(); + if (*rc == -ENXIO) + printk(TPACPI_ERR "enable command accepted for unsupported " + "access mode %d", fan_control_access_mode); + + return 1; + } + + static int fan_write_cmd_disable(const char *cmd, int *rc) + { + if (strlencmp(cmd, "disable") != 0) + return 0; + + *rc = fan_set_disable(); + if (*rc == -ENXIO) + printk(TPACPI_ERR "disable command accepted for unsupported " + "access mode %d", fan_control_access_mode); + + return 1; + } + + static int fan_write_cmd_speed(const char *cmd, int *rc) + { + int speed; + + /* TODO: + * Support speed ? */ + + if (sscanf(cmd, "speed %d", &speed) != 1) + return 0; + + *rc = fan_set_speed(speed); + if (*rc == -ENXIO) + printk(TPACPI_ERR "speed command accepted for unsupported " + "access mode %d", fan_control_access_mode); + + return 1; + } + + static int fan_write_cmd_watchdog(const char *cmd, int *rc) + { + int interval; + + if (sscanf(cmd, "watchdog %d", &interval) != 1) + return 0; + + if (interval < 0 || interval > 120) + *rc = -EINVAL; + else + fan_watchdog_maxinterval = interval; + + return 1; + } + + static int fan_write(char *buf) + { + char *cmd; + int rc = 0; + + while (!rc && (cmd = next_cmd(&buf))) { + if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && + fan_write_cmd_level(cmd, &rc)) && + !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && + (fan_write_cmd_enable(cmd, &rc) || + fan_write_cmd_disable(cmd, &rc) || + fan_write_cmd_watchdog(cmd, &rc))) && + !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && + fan_write_cmd_speed(cmd, &rc)) + ) + rc = -EINVAL; + else if (!rc) + fan_watchdog_reset(); + } + + return rc; + } + + static struct ibm_struct fan_driver_data = { + .name = "fan", + .read = fan_read, + .write = fan_write, + .exit = fan_exit, + .suspend = fan_suspend, + .resume = fan_resume, + }; + + /**************************************************************************** + **************************************************************************** + * + * Infrastructure + * + **************************************************************************** + ****************************************************************************/ + + /* sysfs name ---------------------------------------------------------- */ + static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev, + struct device_attribute *attr, + char *buf) + { + return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME); + } + + static struct device_attribute dev_attr_thinkpad_acpi_pdev_name = + __ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL); + + /* --------------------------------------------------------------------- */ + + /* /proc support */ + static struct proc_dir_entry *proc_dir; + + /* + * Module and infrastructure proble, init and exit handling + */ + + static int force_load; + + #ifdef CONFIG_THINKPAD_ACPI_DEBUG + static const char * __init str_supported(int is_supported) + { + static char text_unsupported[] __initdata = "not supported"; + + return (is_supported)? &text_unsupported[4] : &text_unsupported[0]; + } + #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ + + static void ibm_exit(struct ibm_struct *ibm) + { + dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); + + list_del_init(&ibm->all_drivers); + + if (ibm->flags.acpi_notify_installed) { + dbg_printk(TPACPI_DBG_EXIT, + "%s: acpi_remove_notify_handler\n", ibm->name); + BUG_ON(!ibm->acpi); + acpi_remove_notify_handler(*ibm->acpi->handle, + ibm->acpi->type, + dispatch_acpi_notify); + ibm->flags.acpi_notify_installed = 0; + ibm->flags.acpi_notify_installed = 0; + } + + if (ibm->flags.proc_created) { + dbg_printk(TPACPI_DBG_EXIT, + "%s: remove_proc_entry\n", ibm->name); + remove_proc_entry(ibm->name, proc_dir); + ibm->flags.proc_created = 0; + } + + if (ibm->flags.acpi_driver_registered) { + dbg_printk(TPACPI_DBG_EXIT, + "%s: acpi_bus_unregister_driver\n", ibm->name); + BUG_ON(!ibm->acpi); + acpi_bus_unregister_driver(ibm->acpi->driver); + kfree(ibm->acpi->driver); + ibm->acpi->driver = NULL; + ibm->flags.acpi_driver_registered = 0; + } + + if (ibm->flags.init_called && ibm->exit) { + ibm->exit(); + ibm->flags.init_called = 0; + } + + dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); + } + + static int __init ibm_init(struct ibm_init_struct *iibm) + { + int ret; + struct ibm_struct *ibm = iibm->data; + struct proc_dir_entry *entry; + + BUG_ON(ibm == NULL); + + INIT_LIST_HEAD(&ibm->all_drivers); + + if (ibm->flags.experimental && !experimental) + return 0; + + dbg_printk(TPACPI_DBG_INIT, + "probing for %s\n", ibm->name); + + if (iibm->init) { + ret = iibm->init(iibm); + if (ret > 0) + return 0; /* probe failed */ + if (ret) + return ret; + + ibm->flags.init_called = 1; + } + + if (ibm->acpi) { + if (ibm->acpi->hid) { + ret = register_tpacpi_subdriver(ibm); + if (ret) + goto err_out; + } + + if (ibm->acpi->notify) { + ret = setup_acpi_notify(ibm); + if (ret == -ENODEV) { + printk(TPACPI_NOTICE "disabling subdriver %s\n", + ibm->name); + ret = 0; + goto err_out; + } + if (ret < 0) + goto err_out; + } + } + + dbg_printk(TPACPI_DBG_INIT, + "%s installed\n", ibm->name); + + if (ibm->read) { + entry = create_proc_entry(ibm->name, + S_IFREG | S_IRUGO | S_IWUSR, + proc_dir); + if (!entry) { + printk(TPACPI_ERR "unable to create proc entry %s\n", + ibm->name); + ret = -ENODEV; + goto err_out; + } + entry->owner = THIS_MODULE; + entry->data = ibm; + entry->read_proc = &dispatch_procfs_read; + if (ibm->write) + entry->write_proc = &dispatch_procfs_write; + ibm->flags.proc_created = 1; + } + + list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); + + return 0; + + err_out: + dbg_printk(TPACPI_DBG_INIT, + "%s: at error exit path with result %d\n", + ibm->name, ret); + + ibm_exit(ibm); + return (ret < 0)? ret : 0; + } + + /* Probing */ + + /* returns 0 - probe ok, or < 0 - probe error. + * Probe ok doesn't mean thinkpad found. + * On error, kfree() cleanup on tp->* is not performed, caller must do it */ + static int __must_check __init get_thinkpad_model_data( + struct thinkpad_id_data *tp) + { + const struct dmi_device *dev = NULL; + char ec_fw_string[18]; + char const *s; + + if (!tp) + return -EINVAL; + + memset(tp, 0, sizeof(*tp)); + + if (dmi_name_in_vendors("IBM")) + tp->vendor = PCI_VENDOR_ID_IBM; + else if (dmi_name_in_vendors("LENOVO")) + tp->vendor = PCI_VENDOR_ID_LENOVO; + else + return 0; + + s = dmi_get_system_info(DMI_BIOS_VERSION); + tp->bios_version_str = kstrdup(s, GFP_KERNEL); + if (s && !tp->bios_version_str) + return -ENOMEM; + if (!tp->bios_version_str) + return 0; + tp->bios_model = tp->bios_version_str[0] + | (tp->bios_version_str[1] << 8); + + /* + * ThinkPad T23 or newer, A31 or newer, R50e or newer, + * X32 or newer, all Z series; Some models must have an + * up-to-date BIOS or they will not be detected. + * + * See http://thinkwiki.org/wiki/List_of_DMI_IDs + */ + while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { + if (sscanf(dev->name, + "IBM ThinkPad Embedded Controller -[%17c", + ec_fw_string) == 1) { + ec_fw_string[sizeof(ec_fw_string) - 1] = 0; + ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; + + tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); + if (!tp->ec_version_str) + return -ENOMEM; + tp->ec_model = ec_fw_string[0] + | (ec_fw_string[1] << 8); + break; + } + } + + s = dmi_get_system_info(DMI_PRODUCT_VERSION); + if (s && !strnicmp(s, "ThinkPad", 8)) { + tp->model_str = kstrdup(s, GFP_KERNEL); + if (!tp->model_str) + return -ENOMEM; + } + + s = dmi_get_system_info(DMI_PRODUCT_NAME); + tp->nummodel_str = kstrdup(s, GFP_KERNEL); + if (s && !tp->nummodel_str) + return -ENOMEM; + + return 0; + } + + static int __init probe_for_thinkpad(void) + { + int is_thinkpad; + + if (acpi_disabled) + return -ENODEV; + + /* + * Non-ancient models have better DMI tagging, but very old models + * don't. + */ + is_thinkpad = (thinkpad_id.model_str != NULL); + + /* ec is required because many other handles are relative to it */ + TPACPI_ACPIHANDLE_INIT(ec); + if (!ec_handle) { + if (is_thinkpad) + printk(TPACPI_ERR + "Not yet supported ThinkPad detected!\n"); + return -ENODEV; + } + + /* + * Risks a regression on very old machines, but reduces potential + * false positives a damn great deal + */ + if (!is_thinkpad) + is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM); + + if (!is_thinkpad && !force_load) + return -ENODEV; + + return 0; + } + + + /* Module init, exit, parameters */ + + static struct ibm_init_struct ibms_init[] __initdata = { + { + .init = thinkpad_acpi_driver_init, + .data = &thinkpad_acpi_driver_data, + }, + { + .init = hotkey_init, + .data = &hotkey_driver_data, + }, + { + .init = bluetooth_init, + .data = &bluetooth_driver_data, + }, + { + .init = wan_init, + .data = &wan_driver_data, + }, + #ifdef CONFIG_THINKPAD_ACPI_VIDEO + { + .init = video_init, + .data = &video_driver_data, + }, + #endif + { + .init = light_init, + .data = &light_driver_data, + }, + #ifdef CONFIG_THINKPAD_ACPI_DOCK + { + .init = dock_init, + .data = &dock_driver_data[0], + }, + { + .init = dock_init2, + .data = &dock_driver_data[1], + }, + #endif + #ifdef CONFIG_THINKPAD_ACPI_BAY + { + .init = bay_init, + .data = &bay_driver_data, + }, + #endif + { + .init = cmos_init, + .data = &cmos_driver_data, + }, + { + .init = led_init, + .data = &led_driver_data, + }, + { + .init = beep_init, + .data = &beep_driver_data, + }, + { + .init = thermal_init, + .data = &thermal_driver_data, + }, + { + .data = &ecdump_driver_data, + }, + { + .init = brightness_init, + .data = &brightness_driver_data, + }, + { + .data = &volume_driver_data, + }, + { + .init = fan_init, + .data = &fan_driver_data, + }, + }; + + static int __init set_ibm_param(const char *val, struct kernel_param *kp) + { + unsigned int i; + struct ibm_struct *ibm; + + if (!kp || !kp->name || !val) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { + ibm = ibms_init[i].data; + WARN_ON(ibm == NULL); + + if (!ibm || !ibm->name) + continue; + + if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { + if (strlen(val) > sizeof(ibms_init[i].param) - 2) + return -ENOSPC; + strcpy(ibms_init[i].param, val); + strcat(ibms_init[i].param, ","); + return 0; + } + } + + return -EINVAL; + } + + module_param(experimental, int, 0); + MODULE_PARM_DESC(experimental, + "Enables experimental features when non-zero"); + + module_param_named(debug, dbg_level, uint, 0); + MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); + + module_param(force_load, bool, 0); + MODULE_PARM_DESC(force_load, + "Attempts to load the driver even on a " + "mis-identified ThinkPad when true"); + + module_param_named(fan_control, fan_control_allowed, bool, 0); + MODULE_PARM_DESC(fan_control, + "Enables setting fan parameters features when true"); + + module_param_named(brightness_mode, brightness_mode, int, 0); + MODULE_PARM_DESC(brightness_mode, + "Selects brightness control strategy: " + "0=auto, 1=EC, 2=CMOS, 3=both"); + + module_param(brightness_enable, uint, 0); + MODULE_PARM_DESC(brightness_enable, + "Enables backlight control when 1, disables when 0"); + + module_param(hotkey_report_mode, uint, 0); + MODULE_PARM_DESC(hotkey_report_mode, + "used for backwards compatibility with userspace, " + "see documentation"); + + #define TPACPI_PARAM(feature) \ + module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ + MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \ + "at module load, see documentation") + + TPACPI_PARAM(hotkey); + TPACPI_PARAM(bluetooth); + TPACPI_PARAM(video); + TPACPI_PARAM(light); + #ifdef CONFIG_THINKPAD_ACPI_DOCK + TPACPI_PARAM(dock); + #endif + #ifdef CONFIG_THINKPAD_ACPI_BAY + TPACPI_PARAM(bay); + #endif /* CONFIG_THINKPAD_ACPI_BAY */ + TPACPI_PARAM(cmos); + TPACPI_PARAM(led); + TPACPI_PARAM(beep); + TPACPI_PARAM(ecdump); + TPACPI_PARAM(brightness); + TPACPI_PARAM(volume); + TPACPI_PARAM(fan); + + static void thinkpad_acpi_module_exit(void) + { + struct ibm_struct *ibm, *itmp; + + tpacpi_lifecycle = TPACPI_LIFE_EXITING; + + list_for_each_entry_safe_reverse(ibm, itmp, + &tpacpi_all_drivers, + all_drivers) { + ibm_exit(ibm); + } + + dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); + + if (tpacpi_inputdev) { + if (tp_features.input_device_registered) + input_unregister_device(tpacpi_inputdev); + else + input_free_device(tpacpi_inputdev); + } + + if (tpacpi_hwmon) + hwmon_device_unregister(tpacpi_hwmon); + + if (tp_features.sensors_pdev_attrs_registered) + device_remove_file(&tpacpi_sensors_pdev->dev, + &dev_attr_thinkpad_acpi_pdev_name); + if (tpacpi_sensors_pdev) + platform_device_unregister(tpacpi_sensors_pdev); + if (tpacpi_pdev) + platform_device_unregister(tpacpi_pdev); + + if (tp_features.sensors_pdrv_attrs_registered) + tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); + if (tp_features.platform_drv_attrs_registered) + tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); + + if (tp_features.sensors_pdrv_registered) + platform_driver_unregister(&tpacpi_hwmon_pdriver); + + if (tp_features.platform_drv_registered) + platform_driver_unregister(&tpacpi_pdriver); + + if (proc_dir) + remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); + + if (tpacpi_wq) + destroy_workqueue(tpacpi_wq); + + kfree(thinkpad_id.bios_version_str); + kfree(thinkpad_id.ec_version_str); + kfree(thinkpad_id.model_str); + } + + + static int __init thinkpad_acpi_module_init(void) + { + int ret, i; + + tpacpi_lifecycle = TPACPI_LIFE_INIT; + + /* Parameter checking */ + if (hotkey_report_mode > 2) + return -EINVAL; + + /* Driver-level probe */ + + ret = get_thinkpad_model_data(&thinkpad_id); + if (ret) { + printk(TPACPI_ERR + "unable to get DMI data: %d\n", ret); + thinkpad_acpi_module_exit(); + return ret; + } + ret = probe_for_thinkpad(); + if (ret) { + thinkpad_acpi_module_exit(); + return ret; + } + + /* Driver initialization */ + + TPACPI_ACPIHANDLE_INIT(ecrd); + TPACPI_ACPIHANDLE_INIT(ecwr); + + tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); + if (!tpacpi_wq) { + thinkpad_acpi_module_exit(); + return -ENOMEM; + } + + proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); + if (!proc_dir) { + printk(TPACPI_ERR + "unable to create proc dir " TPACPI_PROC_DIR); + thinkpad_acpi_module_exit(); + return -ENODEV; + } + proc_dir->owner = THIS_MODULE; + + ret = platform_driver_register(&tpacpi_pdriver); + if (ret) { + printk(TPACPI_ERR + "unable to register main platform driver\n"); + thinkpad_acpi_module_exit(); + return ret; + } + tp_features.platform_drv_registered = 1; + + ret = platform_driver_register(&tpacpi_hwmon_pdriver); + if (ret) { + printk(TPACPI_ERR + "unable to register hwmon platform driver\n"); + thinkpad_acpi_module_exit(); + return ret; + } + tp_features.sensors_pdrv_registered = 1; + + ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); + if (!ret) { + tp_features.platform_drv_attrs_registered = 1; + ret = tpacpi_create_driver_attributes( + &tpacpi_hwmon_pdriver.driver); + } + if (ret) { + printk(TPACPI_ERR + "unable to create sysfs driver attributes\n"); + thinkpad_acpi_module_exit(); + return ret; + } + tp_features.sensors_pdrv_attrs_registered = 1; + + + /* Device initialization */ + tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, + NULL, 0); + if (IS_ERR(tpacpi_pdev)) { + ret = PTR_ERR(tpacpi_pdev); + tpacpi_pdev = NULL; + printk(TPACPI_ERR "unable to register platform device\n"); + thinkpad_acpi_module_exit(); + return ret; + } + tpacpi_sensors_pdev = platform_device_register_simple( + TPACPI_HWMON_DRVR_NAME, + -1, NULL, 0); + if (IS_ERR(tpacpi_sensors_pdev)) { + ret = PTR_ERR(tpacpi_sensors_pdev); + tpacpi_sensors_pdev = NULL; + printk(TPACPI_ERR + "unable to register hwmon platform device\n"); + thinkpad_acpi_module_exit(); + return ret; + } + ret = device_create_file(&tpacpi_sensors_pdev->dev, + &dev_attr_thinkpad_acpi_pdev_name); + if (ret) { + printk(TPACPI_ERR + "unable to create sysfs hwmon device attributes\n"); + thinkpad_acpi_module_exit(); + return ret; + } + tp_features.sensors_pdev_attrs_registered = 1; + tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev); + if (IS_ERR(tpacpi_hwmon)) { + ret = PTR_ERR(tpacpi_hwmon); + tpacpi_hwmon = NULL; + printk(TPACPI_ERR "unable to register hwmon device\n"); + thinkpad_acpi_module_exit(); + return ret; + } + mutex_init(&tpacpi_inputdev_send_mutex); + tpacpi_inputdev = input_allocate_device(); + if (!tpacpi_inputdev) { + printk(TPACPI_ERR "unable to allocate input device\n"); + thinkpad_acpi_module_exit(); + return -ENOMEM; + } else { + /* Prepare input device, but don't register */ + tpacpi_inputdev->name = "ThinkPad Extra Buttons"; + tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; + tpacpi_inputdev->id.bustype = BUS_HOST; + tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ? + thinkpad_id.vendor : + PCI_VENDOR_ID_IBM; + tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; + tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; + } + for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { + ret = ibm_init(&ibms_init[i]); + if (ret >= 0 && *ibms_init[i].param) + ret = ibms_init[i].data->write(ibms_init[i].param); + if (ret < 0) { + thinkpad_acpi_module_exit(); + return ret; + } + } + ret = input_register_device(tpacpi_inputdev); + if (ret < 0) { + printk(TPACPI_ERR "unable to register input device\n"); + thinkpad_acpi_module_exit(); + return ret; + } else { + tp_features.input_device_registered = 1; + } + + tpacpi_lifecycle = TPACPI_LIFE_RUNNING; + return 0; + } + + /* Please remove this in year 2009 */ + MODULE_ALIAS("ibm_acpi"); + + MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); + + /* + * DMI matching for module autoloading + * + * See http://thinkwiki.org/wiki/List_of_DMI_IDs + * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads + * + * Only models listed in thinkwiki will be supported, so add yours + * if it is not there yet. + */ + #define IBM_BIOS_MODULE_ALIAS(__type) \ + MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW") + + /* Non-ancient thinkpads */ + MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*"); + MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*"); + + /* Ancient thinkpad BIOSes have to be identified by + * BIOS type or model number, and there are far less + * BIOS types than model numbers... */ + IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]"); + IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]"); + IBM_BIOS_MODULE_ALIAS("K[U,X-Z]"); + + MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh"); + MODULE_DESCRIPTION(TPACPI_DESC); + MODULE_VERSION(TPACPI_VERSION); + MODULE_LICENSE("GPL"); + + module_init(thinkpad_acpi_module_init); + module_exit(thinkpad_acpi_module_exit);