/*
- * Front panel driver for Linux - 20000810 - Willy Tarreau - willy@meta-x.org.
- * It includes and LCD display (/dev/lcd), a 4-key keypad (/dev/keypad), and a
- * smart card reader (/dev/smartcard).
+ * Front panel driver for Linux
+ * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
*
- * Updates for this driver may be found here :
+ * 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.
*
- * http://w.ods.org/linux/kernel/lcdpanel/
+ * This code drives an LCD module (/dev/lcd), and a keypad (/dev/keypad)
+ * connected to a parallel printer port.
*
- * the driver skeleton has been stolen from nvram.c which was clearly written.
+ * The LCD module may either be an HD44780-like 8-bit parallel LCD, or a 1-bit
+ * serial module compatible with Samsung's KS0074. The pins may be connected in
+ * any combination, everything is programmable.
*
- * Changes:
- * 2000/08/10
- * - keypad now scrolls LCD when not opened
- * - released 0.5.1
- * 2000/08/10
- * - bug fixes
- * - released 0.5.2
- * 2000/08/10
- * - Reposition LCD when opening /dev/keypad (WIP)
- * - Released 0.5.3
- * 2001/02/04
- * - Start of port to kernel 2.4.1
- * 2001/03/11
- * - implementation of a 24-key keyboard scanner with less electronics
- * around, thus allowing to release the IRQ line.
- * 2001/03/25
- * - the driver now compiles and works with both 2.4.2 and 2.2.18 kernels
- * 2001/04/22
- * - implementation of KS0074-based serial LCD (load with lcd_enabled=2 and lcd_hwidth=16)
- * 2001/04/29
- * - added back-light support, released 0.7.1
- * 2001/05/01
- * - added charset conversion table for ks0074, released 0.7.2
- * 2001/05/08
- * - start of rewriting towards v0.8
- * 2001/10/21
- * - replaced linux/malloc.h with linux/slab.h to be 2.4 compliant
- * - definition of the multi-layer input system with its naming scheme
- * - profile support for simplified configuration
- * 2001/10/28
- * - smartcard now works for telecards. /dev/smartcard returns the card serial number
- * 2001/11/10
- * - fix too short sleep for lcd_clear
- * 2004/05/09
- * - add support for hantronix LCD modules (RS on SELECTIN instead of AUTOLF)
- * (load with lcd_enabled=3 or profile=3)
- * 2004/06/04
- * - changed all parallel LCD functions to be more generic. Now any
- * connection of control signal is allowed with lcd_*_pin.
- * 2004/07/23
- * - cleaned up some code
- * - added support for keypads with inverted inputs
- * - added support for Nexcom's LCD/Keypad on profile 4
- * - added character generator for chars 0-7 : "\e[LG{0-7}{8*2 hexdigits};"
- * 2004/07/29 : 0.9.0
- * - deprecated lcd_enabled and keypad_enabled in profit of *_type
- * - changed configuration so that the user can choose everything at
- * kernel compilation time
- * 2004/07/31 : 0.9.2
- * - fixed a stupid copy-paste bug affecting only the serial LCD
- * - moved display geometries to lcd_init() to avoid problems with custom profiles.
- * 2004/08/06 : 0.9.3
- * - added a system notifier callback to print the system state on the LCD
- * during reboots or halts.
+ * The keypad consists in a matrix of push buttons connecting input pins to
+ * data output pins or to the ground. The combinations have to be hard-coded
+ * in the driver, though several profiles exist and adding new ones is easy.
*
- * 2005/05/20 : 0.9.4
- * - first working port on kernel 2.6
- *
- * 2006/12/18 : 0.9.5
- * - fixed a long standing bug in 2.6 causing panics during reboot/kexec
- * if the LCD was enabled but not initialized due to lack of parport.
+ * Several profiles are provided for commonly found LCD+keypad modules on the
+ * market, such as those found in Nexcom's appliances.
*
* FIXME:
* - the initialization/deinitialization process is very dirty and should
#include <linux/smp_lock.h>
#include <linux/interrupt.h>
#include <linux/miscdevice.h>
-#include <linux/slab.h> // previously <linux/malloc.h>
+#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/fcntl.h>
#include <linux/init.h>
#include <linux/reboot.h>
#include <linux/utsrelease.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <asm/uaccess.h>
#include <asm/system.h>
/* converts an r_str() input to an active high, bits string : 000BAOSE */
#define PNL_PINPUT(a) ((((unsigned char)(a)) ^ 0x7F) >> 3)
-#define PNL_PBUSY 0x80 /* inverted input, active low */
-#define PNL_PACK 0x40 /* direct input, active low */
-#define PNL_POUTPA 0x20 /* direct input, active high */
-#define PNL_PSELECD 0x10 /* direct input, active high */
-#define PNL_PERRORP 0x08 /* direct input, active low */
+#define PNL_PBUSY 0x80 /* inverted input, active low */
+#define PNL_PACK 0x40 /* direct input, active low */
+#define PNL_POUTPA 0x20 /* direct input, active high */
+#define PNL_PSELECD 0x10 /* direct input, active high */
+#define PNL_PERRORP 0x08 /* direct input, active low */
-#define PNL_PBIDIR 0x20 /* bi-directional ports */
-#define PNL_PINTEN 0x10 /* high to read data in or-ed with data out */
-#define PNL_PSELECP 0x08 /* inverted output, active low */
-#define PNL_PINITP 0x04 /* direct output, active low */
-#define PNL_PAUTOLF 0x02 /* inverted output, active low */
-#define PNL_PSTROBE 0x01 /* inverted output */
+#define PNL_PBIDIR 0x20 /* bi-directional ports */
+#define PNL_PINTEN 0x10 /* high to read data in or-ed with data out */
+#define PNL_PSELECP 0x08 /* inverted output, active low */
+#define PNL_PINITP 0x04 /* direct output, active low */
+#define PNL_PAUTOLF 0x02 /* inverted output, active low */
+#define PNL_PSTROBE 0x01 /* inverted output */
#define PNL_PD0 0x01
#define PNL_PD1 0x02
#define PIN_NOT_SET 127
/* some smartcard-specific signals */
-#define PNL_SC_IO PNL_PD1 /* Warning! inverted output, 0=highZ */
+#define PNL_SC_IO PNL_PD1 /* Warning! inverted output, 0=highZ */
#define PNL_SC_RST PNL_PD2
#define PNL_SC_CLK PNL_PD3
#define PNL_SC_RW PNL_PD4
#define r_ctr(x) (parport_read_control((x)->port))
#define r_dtr(x) (parport_read_data((x)->port))
#define r_str(x) (parport_read_status((x)->port))
-#define w_ctr(x,y) do { parport_write_control((x)->port, (y)); } while (0)
-#define w_dtr(x,y) do { parport_write_data((x)->port, (y)); } while (0)
+#define w_ctr(x, y) do { parport_write_control((x)->port, (y)); } while (0)
+#define w_dtr(x, y) do { parport_write_data((x)->port, (y)); } while (0)
/* this defines which bits are to be used and which ones to be ignored */
-static __u8 scan_mask_o = 0; /* logical or of the output bits involved in the scan matrix */
-static __u8 scan_mask_i = 0; /* logical or of the input bits involved in the scan matrix */
+static __u8 scan_mask_o; /* logical or of the output bits involved in the scan matrix */
+static __u8 scan_mask_i; /* logical or of the input bits involved in the scan matrix */
-typedef __u64 pmask_t;
+typedef __u64 pmask_t;
enum input_type {
- INPUT_TYPE_STD,
- INPUT_TYPE_KBD,
+ INPUT_TYPE_STD,
+ INPUT_TYPE_KBD,
};
enum input_state {
- INPUT_ST_LOW,
- INPUT_ST_RISING,
- INPUT_ST_HIGH,
- INPUT_ST_FALLING,
+ INPUT_ST_LOW,
+ INPUT_ST_RISING,
+ INPUT_ST_HIGH,
+ INPUT_ST_FALLING,
};
struct logical_input {
- struct list_head list;
- pmask_t mask;
- pmask_t value;
- enum input_type type;
- enum input_state state;
- __u8 rise_time, fall_time;
- __u8 rise_timer, fall_timer, high_timer;
-
- union {
- struct { /* this structure is valid when type == INPUT_TYPE_STD */
- void(*press_fct)(int);
- void(*release_fct)(int);
- int press_data;
- int release_data;
- } std;
- struct { /* this structure is valid when type == INPUT_TYPE_KBD */
- /* strings can be full-length (ie. non null-terminated) */
- char press_str[sizeof(void *) + sizeof (int)];
- char repeat_str[sizeof(void *) + sizeof (int)];
- char release_str[sizeof(void *) + sizeof (int)];
- } kbd;
- } u;
+ struct list_head list;
+ pmask_t mask;
+ pmask_t value;
+ enum input_type type;
+ enum input_state state;
+ __u8 rise_time, fall_time;
+ __u8 rise_timer, fall_timer, high_timer;
+
+ union {
+ struct { /* this structure is valid when type == INPUT_TYPE_STD */
+ void (*press_fct) (int);
+ void (*release_fct) (int);
+ int press_data;
+ int release_data;
+ } std;
+ struct { /* this structure is valid when type == INPUT_TYPE_KBD */
+ /* strings can be full-length (ie. non null-terminated) */
+ char press_str[sizeof(void *) + sizeof(int)];
+ char repeat_str[sizeof(void *) + sizeof(int)];
+ char release_str[sizeof(void *) + sizeof(int)];
+ } kbd;
+ } u;
};
-LIST_HEAD(logical_inputs); /* list of all defined logical inputs */
+LIST_HEAD(logical_inputs); /* list of all defined logical inputs */
/* physical contacts history
* Physical contacts are a 45 bits string of 9 groups of 5 bits each.
* <-----unused------><gnd><d07><d06><d05><d04><d03><d02><d01><d00>
*/
static pmask_t phys_read; /* what has just been read from the I/O ports */
-static pmask_t phys_read_prev; /* previous phys_read */
-static pmask_t phys_curr; /* stabilized phys_read (phys_read|phys_read_prev) */
-static pmask_t phys_prev; /* previous phys_curr */
-static char inputs_stable = 0; /* 0 means that at least one logical signal needs be computed */
+static pmask_t phys_read_prev; /* previous phys_read */
+static pmask_t phys_curr; /* stabilized phys_read (phys_read|phys_read_prev) */
+static pmask_t phys_prev; /* previous phys_curr */
+static char inputs_stable; /* 0 means that at least one logical signal needs be computed */
/* these variables are specific to the smartcard */
static __u8 smartcard_data[SMARTCARD_BYTES];
-static int smartcard_ptr = 0; /* pointer to half bytes in smartcard_data */
+static int smartcard_ptr; /* pointer to half bytes in smartcard_data */
/* these variables are specific to the keypad */
static char keypad_buffer[KEYPAD_BUFFER];
-static int keypad_buflen = 0;
-static int keypad_start = 0;
-static char keypressed = 0;
+static int keypad_buflen;
+static int keypad_start;
+static char keypressed;
static wait_queue_head_t keypad_read_wait;
static wait_queue_head_t smartcard_read_wait;
/* lcd-specific variables */
-static unsigned long int lcd_flags = 0; /* contains the LCD config state */
-static unsigned long int lcd_addr_x = 0; /* contains the LCD X offset */
-static unsigned long int lcd_addr_y = 0; /* contains the LCD Y offset */
-static char lcd_escape[LCD_ESCAPE_LEN+1]; /* current escape sequence, 0 terminated */
-static int lcd_escape_len = -1; /* not in escape state. >=0 = escape cmd len */
+static unsigned long int lcd_flags; /* contains the LCD config state */
+static unsigned long int lcd_addr_x; /* contains the LCD X offset */
+static unsigned long int lcd_addr_y; /* contains the LCD Y offset */
+static char lcd_escape[LCD_ESCAPE_LEN + 1]; /* current escape sequence, 0 terminated */
+static int lcd_escape_len = -1; /* not in escape state. >=0 = escape cmd len */
static int lcd_height = -1;
-static int lcd_width = -1;
-static int lcd_hwidth = -1; /* hardware buffer width (usually 64) */
-static int lcd_bwidth = -1; /* internal buffer width (usually 40) */
+static int lcd_width = -1;
+static int lcd_hwidth = -1; /* hardware buffer width (usually 64) */
+static int lcd_bwidth = -1; /* internal buffer width (usually 40) */
/*
* These are the parallel port pins the LCD control signals are connected to.
*
* WARNING! no check will be performed about collisions with keypad/smartcard !
*/
-static int lcd_e_pin = PIN_NOT_SET;
+static int lcd_e_pin = PIN_NOT_SET;
static int lcd_rs_pin = PIN_NOT_SET;
static int lcd_rw_pin = PIN_NOT_SET;
static int lcd_bl_pin = PIN_NOT_SET;
* _d_ are values for data port, _c_ are for control port.
* [0] = signal OFF, [1] = signal ON, [2] = mask
*/
-#define BIT_CLR 0
-#define BIT_SET 1
-#define BIT_MSK 2
+#define BIT_CLR 0
+#define BIT_SET 1
+#define BIT_MSK 2
#define BIT_STATES 3
/*
* one entry for each bit on the LCD
#define DEFAULT_PARPORT CONFIG_PANEL_PARPORT
#endif
-#if DEFAULT_PROFILE==0 /* custom */
+#if DEFAULT_PROFILE == 0 /* custom */
#ifdef CONFIG_PANEL_KEYPAD
#undef DEFAULT_KEYPAD
#define DEFAULT_KEYPAD CONFIG_PANEL_KEYPAD
#endif /* DEFAULT_PROFILE == 0 */
/* global variables */
-static int smartcard_open_cnt = 0; /* #times opened */
-static int keypad_open_cnt = 0; /* #times opened */
-static int lcd_open_cnt = 0; /* #times opened */
+static int smartcard_open_cnt; /* #times opened */
+static int keypad_open_cnt; /* #times opened */
+static int lcd_open_cnt; /* #times opened */
static int profile = DEFAULT_PROFILE;
-static struct pardevice *pprt = NULL;
+static struct pardevice *pprt;
static int parport = -1;
static int lcd_enabled = -1;
static int lcd_type = -1;
static int lcd_initialized, keypad_initialized, smartcard_initialized;
-static int light_tempo = 0;
+static int light_tempo;
-static char lcd_must_clear = 0;
-static char lcd_left_shift = 0;
-static char init_in_progress = 0;
+static char lcd_must_clear;
+static char lcd_left_shift;
+static char init_in_progress;
-static void(*lcd_write_cmd)(int) = NULL;
-static void(*lcd_write_data)(int) = NULL;
-static void(*lcd_clear_fast)(void) = NULL;
+static void (*lcd_write_cmd) (int);
+static void (*lcd_write_data) (int);
+static void (*lcd_clear_fast) (void);
-static spinlock_t pprt_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(pprt_lock);
static struct timer_list scan_timer;
#ifdef MODULE
MODULE_DESCRIPTION("Generic parallel port LCD/Keypad/Smartcard driver");
-module_param(parport, int, 0000);MODULE_PARM_DESC(parport, "Parallel port index (0=lpt1, 1=lpt2, ...)");
-module_param(lcd_height, int, 0000);MODULE_PARM_DESC(lcd_height, "Number of lines on the LCD");
-module_param(lcd_width, int, 0000);MODULE_PARM_DESC(lcd_width, "Number of columns on the LCD");
-module_param(lcd_bwidth, int, 0000);MODULE_PARM_DESC(lcd_bwidth, "Internal LCD line width (40)");
-module_param(lcd_hwidth, int, 0000);MODULE_PARM_DESC(lcd_hwidth, "LCD line hardware address (64)");
-module_param(lcd_enabled, int, 0000);MODULE_PARM_DESC(lcd_enabled, "Deprecated option, use lcd_type instead");
-module_param(keypad_enabled, int, 0000);MODULE_PARM_DESC(keypad_enabled, "Deprecated option, use keypad_type instead");
-module_param(lcd_type, int, 0000);MODULE_PARM_DESC(lcd_type, "LCD type: 0=none, 1=old //, 2=serial ks0074, 3=hantronix //, 4=nexcom //, 5=compiled-in");
-module_param(lcd_proto, int, 0000);MODULE_PARM_DESC(lcd_proto, "LCD communication: 0=parallel (//), 1=serial");
-module_param(lcd_charset, int, 0000);MODULE_PARM_DESC(lcd_charset, "LCD character set: 0=standard, 1=KS0074");
-module_param(keypad_type, int, 0000);MODULE_PARM_DESC(keypad_type, "Keypad type: 0=none, 1=old 6 keys, 2=new 6+1 keys, 3=nexcom 4 keys");
-module_param(smartcard_enabled, int, 0000);MODULE_PARM_DESC(smartcard_enabled, "Smartcard reader: 0=disabled (default), 1=enabled");
-module_param(profile, int, 0000); MODULE_PARM_DESC(profile, "1=16x2 old kp; 2=serial 16x2, new kp; 3=16x2 hantronix; 4=16x2 nexcom; default=40x2, old kp");
-
-module_param(lcd_e_pin, int, 0000); MODULE_PARM_DESC(lcd_e_pin, "# of the // port pin connected to LCD 'E' signal, with polarity (-17..17)");
-module_param(lcd_rs_pin, int, 0000);MODULE_PARM_DESC(lcd_rs_pin, "# of the // port pin connected to LCD 'RS' signal, with polarity (-17..17)");
-module_param(lcd_rw_pin, int, 0000);MODULE_PARM_DESC(lcd_rw_pin, "# of the // port pin connected to LCD 'RW' signal, with polarity (-17..17)");
-module_param(lcd_bl_pin, int, 0000);MODULE_PARM_DESC(lcd_bl_pin, "# of the // port pin connected to LCD backlight, with polarity (-17..17)");
-module_param(lcd_da_pin, int, 0000);MODULE_PARM_DESC(lcd_da_pin, "# of the // port pin connected to serial LCD 'SDA' signal, with polarity (-17..17)");
-module_param(lcd_cl_pin, int, 0000);MODULE_PARM_DESC(lcd_cl_pin, "# of the // port pin connected to serial LCD 'SCL' signal, with polarity (-17..17)");
+module_param(parport, int, 0000);
+MODULE_PARM_DESC(parport, "Parallel port index (0=lpt1, 1=lpt2, ...)");
+module_param(lcd_height, int, 0000);
+MODULE_PARM_DESC(lcd_height, "Number of lines on the LCD");
+module_param(lcd_width, int, 0000);
+MODULE_PARM_DESC(lcd_width, "Number of columns on the LCD");
+module_param(lcd_bwidth, int, 0000);
+MODULE_PARM_DESC(lcd_bwidth, "Internal LCD line width (40)");
+module_param(lcd_hwidth, int, 0000);
+MODULE_PARM_DESC(lcd_hwidth, "LCD line hardware address (64)");
+module_param(lcd_enabled, int, 0000);
+MODULE_PARM_DESC(lcd_enabled, "Deprecated option, use lcd_type instead");
+module_param(keypad_enabled, int, 0000);
+MODULE_PARM_DESC(keypad_enabled, "Deprecated option, use keypad_type instead");
+module_param(lcd_type, int, 0000);
+MODULE_PARM_DESC(lcd_type,
+ "LCD type: 0=none, 1=old //, 2=serial ks0074, 3=hantronix //, 4=nexcom //, 5=compiled-in");
+module_param(lcd_proto, int, 0000);
+MODULE_PARM_DESC(lcd_proto, "LCD communication: 0=parallel (//), 1=serial");
+module_param(lcd_charset, int, 0000);
+MODULE_PARM_DESC(lcd_charset, "LCD character set: 0=standard, 1=KS0074");
+module_param(keypad_type, int, 0000);
+MODULE_PARM_DESC(keypad_type,
+ "Keypad type: 0=none, 1=old 6 keys, 2=new 6+1 keys, 3=nexcom 4 keys");
+module_param(smartcard_enabled, int, 0000);
+MODULE_PARM_DESC(smartcard_enabled,
+ "Smartcard reader: 0=disabled (default), 1=enabled");
+module_param(profile, int, 0000);
+MODULE_PARM_DESC(profile,
+ "1=16x2 old kp; 2=serial 16x2, new kp; 3=16x2 hantronix; 4=16x2 nexcom; default=40x2, old kp");
+
+module_param(lcd_e_pin, int, 0000);
+MODULE_PARM_DESC(lcd_e_pin,
+ "# of the // port pin connected to LCD 'E' signal, with polarity (-17..17)");
+module_param(lcd_rs_pin, int, 0000);
+MODULE_PARM_DESC(lcd_rs_pin,
+ "# of the // port pin connected to LCD 'RS' signal, with polarity (-17..17)");
+module_param(lcd_rw_pin, int, 0000);
+MODULE_PARM_DESC(lcd_rw_pin,
+ "# of the // port pin connected to LCD 'RW' signal, with polarity (-17..17)");
+module_param(lcd_bl_pin, int, 0000);
+MODULE_PARM_DESC(lcd_bl_pin,
+ "# of the // port pin connected to LCD backlight, with polarity (-17..17)");
+module_param(lcd_da_pin, int, 0000);
+MODULE_PARM_DESC(lcd_da_pin,
+ "# of the // port pin connected to serial LCD 'SDA' signal, with polarity (-17..17)");
+module_param(lcd_cl_pin, int, 0000);
+MODULE_PARM_DESC(lcd_cl_pin,
+ "# of the // port pin connected to serial LCD 'SCL' signal, with polarity (-17..17)");
#endif
-static unsigned char *lcd_char_conv = NULL;
+static unsigned char *lcd_char_conv;
/* for some LCD drivers (ks0074) we need a charset conversion table. */
static unsigned char lcd_char_conv_ks0074[256] = {
- /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
- /* 0x00 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
- /* 0x10 */ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
- /* 0x20 */ 0x20, 0x21, 0x22, 0x23, 0xa2, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
- /* 0x30 */ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
- /* 0x40 */ 0xa0, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
- /* 0x50 */ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0xfa, 0xfb, 0xfc, 0x1d, 0xc4,
- /* 0x60 */ 0x96, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
- /* 0x70 */ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0xfd, 0xfe, 0xff, 0xce, 0x20,
- /* 0x80 */ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
- /* 0x90 */ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
- /* 0xA0 */ 0x20, 0x40, 0xb1, 0xa1, 0x24, 0xa3, 0xfe, 0x5f, 0x22, 0xc8, 0x61, 0x14, 0x97, 0x2d, 0xad, 0x96,
- /* 0xB0 */ 0x80, 0x8c, 0x82, 0x83, 0x27, 0x8f, 0x86, 0xdd, 0x2c, 0x81, 0x6f, 0x15, 0x8b, 0x8a, 0x84, 0x60,
- /* 0xC0 */ 0xe2, 0xe2, 0xe2, 0x5b, 0x5b, 0xae, 0xbc, 0xa9, 0xc5, 0xbf, 0xc6, 0xf1, 0xe3, 0xe3, 0xe3, 0xe3,
- /* 0xD0 */ 0x44, 0x5d, 0xa8, 0xe4, 0xec, 0xec, 0x5c, 0x78, 0xab, 0xa6, 0xe5, 0x5e, 0x5e, 0xe6, 0xaa, 0xbe,
- /* 0xE0 */ 0x7f, 0xe7, 0xaf, 0x7b, 0x7b, 0xaf, 0xbd, 0xc8, 0xa4, 0xa5, 0xc7, 0xf6, 0xa7, 0xe8, 0x69, 0x69,
- /* 0xF0 */ 0xed, 0x7d, 0xa8, 0xe4, 0xec, 0x5c, 0x5c, 0x25, 0xac, 0xa6, 0xea, 0xef, 0x7e, 0xeb, 0xb2, 0x79,
+ /* 0|8 1|9 2|A 3|B 4|C 5|D 6|E 7|F */
+ /* 0x00 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ /* 0x08 */ 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+ /* 0x10 */ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ /* 0x18 */ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+ /* 0x20 */ 0x20, 0x21, 0x22, 0x23, 0xa2, 0x25, 0x26, 0x27,
+ /* 0x28 */ 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+ /* 0x30 */ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+ /* 0x38 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+ /* 0x40 */ 0xa0, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+ /* 0x48 */ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+ /* 0x50 */ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
+ /* 0x58 */ 0x58, 0x59, 0x5a, 0xfa, 0xfb, 0xfc, 0x1d, 0xc4,
+ /* 0x60 */ 0x96, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+ /* 0x68 */ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+ /* 0x70 */ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+ /* 0x78 */ 0x78, 0x79, 0x7a, 0xfd, 0xfe, 0xff, 0xce, 0x20,
+ /* 0x80 */ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ /* 0x88 */ 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+ /* 0x90 */ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ /* 0x98 */ 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
+ /* 0xA0 */ 0x20, 0x40, 0xb1, 0xa1, 0x24, 0xa3, 0xfe, 0x5f,
+ /* 0xA8 */ 0x22, 0xc8, 0x61, 0x14, 0x97, 0x2d, 0xad, 0x96,
+ /* 0xB0 */ 0x80, 0x8c, 0x82, 0x83, 0x27, 0x8f, 0x86, 0xdd,
+ /* 0xB8 */ 0x2c, 0x81, 0x6f, 0x15, 0x8b, 0x8a, 0x84, 0x60,
+ /* 0xC0 */ 0xe2, 0xe2, 0xe2, 0x5b, 0x5b, 0xae, 0xbc, 0xa9,
+ /* 0xC8 */ 0xc5, 0xbf, 0xc6, 0xf1, 0xe3, 0xe3, 0xe3, 0xe3,
+ /* 0xD0 */ 0x44, 0x5d, 0xa8, 0xe4, 0xec, 0xec, 0x5c, 0x78,
+ /* 0xD8 */ 0xab, 0xa6, 0xe5, 0x5e, 0x5e, 0xe6, 0xaa, 0xbe,
+ /* 0xE0 */ 0x7f, 0xe7, 0xaf, 0x7b, 0x7b, 0xaf, 0xbd, 0xc8,
+ /* 0xE8 */ 0xa4, 0xa5, 0xc7, 0xf6, 0xa7, 0xe8, 0x69, 0x69,
+ /* 0xF0 */ 0xed, 0x7d, 0xa8, 0xe4, 0xec, 0x5c, 0x5c, 0x25,
+ /* 0xF8 */ 0xac, 0xa6, 0xea, 0xef, 0x7e, 0xeb, 0xb2, 0x79,
};
char old_keypad_profile[][4][9] = {
- {"S0", "Left\n", "Left\n", ""},
- {"S1", "Down\n", "Down\n", ""},
- {"S2", "Up\n", "Up\n", ""},
- {"S3", "Right\n", "Right\n", ""},
- {"S4", "Esc\n", "Esc\n", ""},
- {"S5", "Ret\n", "Ret\n", ""},
- {"","","",""}
+ {"S0", "Left\n", "Left\n", ""},
+ {"S1", "Down\n", "Down\n", ""},
+ {"S2", "Up\n", "Up\n", ""},
+ {"S3", "Right\n", "Right\n", ""},
+ {"S4", "Esc\n", "Esc\n", ""},
+ {"S5", "Ret\n", "Ret\n", ""},
+ {"", "", "", ""}
};
/* signals, press, repeat, release */
char new_keypad_profile[][4][9] = {
- {"S0", "Left\n", "Left\n", ""},
- {"S1", "Down\n", "Down\n", ""},
- {"S2", "Up\n", "Up\n", ""},
- {"S3", "Right\n", "Right\n", ""},
- {"S4s5", "", "Esc\n", "Esc\n"},
- {"s4S5", "", "Ret\n", "Ret\n"},
- {"S4S5", "Help\n", "", ""},
- /* add new signals above this line */
- {"","","",""}
+ {"S0", "Left\n", "Left\n", ""},
+ {"S1", "Down\n", "Down\n", ""},
+ {"S2", "Up\n", "Up\n", ""},
+ {"S3", "Right\n", "Right\n", ""},
+ {"S4s5", "", "Esc\n", "Esc\n"},
+ {"s4S5", "", "Ret\n", "Ret\n"},
+ {"S4S5", "Help\n", "", ""},
+ /* add new signals above this line */
+ {"", "", "", ""}
};
/* signals, press, repeat, release */
char nexcom_keypad_profile[][4][9] = {
- {"a-p-e-", "Down\n", "Down\n", ""}, // Down
- {"a-p-E-", "Ret\n", "Ret\n", ""}, // Enter
- {"a-P-E-", "Esc\n", "Esc\n", ""}, // Esc
- {"a-P-e-", "Up\n", "Up\n", ""}, // Up
- /* add new signals above this line */
- {"","","",""}
+ {"a-p-e-", "Down\n", "Down\n", ""},
+ {"a-p-E-", "Ret\n", "Ret\n", ""},
+ {"a-P-E-", "Esc\n", "Esc\n", ""},
+ {"a-P-e-", "Up\n", "Up\n", ""},
+ /* add new signals above this line */
+ {"", "", "", ""}
};
static char (*keypad_profile)[4][9] = old_keypad_profile;
/* FIXME: this should be converted to a bit array containing signals states */
static struct {
- unsigned char e; /* parallel LCD E (data latch on falling edge) */
- unsigned char rs; /* parallel LCD RS (0 = cmd, 1 = data) */
- unsigned char rw; /* parallel LCD R/W (0 = W, 1 = R) */
- unsigned char bl; /* parallel LCD backlight (0 = off, 1 = on) */
- unsigned char cl; /* serial LCD clock (latch on rising edge) */
- unsigned char da; /* serial LCD data */
+ unsigned char e; /* parallel LCD E (data latch on falling edge) */
+ unsigned char rs; /* parallel LCD RS (0 = cmd, 1 = data) */
+ unsigned char rw; /* parallel LCD R/W (0 = W, 1 = R) */
+ unsigned char bl; /* parallel LCD backlight (0 = off, 1 = on) */
+ unsigned char cl; /* serial LCD clock (latch on rising edge) */
+ unsigned char da; /* serial LCD data */
} bits;
static void init_scan_timer(void);
/* sets data port bits according to current signals values */
-static int set_data_bits(void) {
- int val, bit;
-
- val = r_dtr(pprt);
- for (bit = 0; bit < LCD_BITS; bit++)
- val &= lcd_bits[LCD_PORT_D][bit][BIT_MSK];
-
- val |= lcd_bits[LCD_PORT_D][LCD_BIT_E][bits.e]
- | lcd_bits[LCD_PORT_D][LCD_BIT_RS][bits.rs]
- | lcd_bits[LCD_PORT_D][LCD_BIT_RW][bits.rw]
- | lcd_bits[LCD_PORT_D][LCD_BIT_BL][bits.bl]
- | lcd_bits[LCD_PORT_D][LCD_BIT_CL][bits.cl]
- | lcd_bits[LCD_PORT_D][LCD_BIT_DA][bits.da];
-
- w_dtr(pprt, val);
- return val;
+static int set_data_bits(void)
+{
+ int val, bit;
+
+ val = r_dtr(pprt);
+ for (bit = 0; bit < LCD_BITS; bit++)
+ val &= lcd_bits[LCD_PORT_D][bit][BIT_MSK];
+
+ val |= lcd_bits[LCD_PORT_D][LCD_BIT_E][bits.e]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_RS][bits.rs]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_RW][bits.rw]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_BL][bits.bl]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_CL][bits.cl]
+ | lcd_bits[LCD_PORT_D][LCD_BIT_DA][bits.da];
+
+ w_dtr(pprt, val);
+ return val;
}
/* sets ctrl port bits according to current signals values */
-static int set_ctrl_bits(void) {
- int val, bit;
-
- val = r_ctr(pprt);
- for (bit = 0; bit < LCD_BITS; bit++)
- val &= lcd_bits[LCD_PORT_C][bit][BIT_MSK];
-
- val |= lcd_bits[LCD_PORT_C][LCD_BIT_E][bits.e]
- | lcd_bits[LCD_PORT_C][LCD_BIT_RS][bits.rs]
- | lcd_bits[LCD_PORT_C][LCD_BIT_RW][bits.rw]
- | lcd_bits[LCD_PORT_C][LCD_BIT_BL][bits.bl]
- | lcd_bits[LCD_PORT_C][LCD_BIT_CL][bits.cl]
- | lcd_bits[LCD_PORT_C][LCD_BIT_DA][bits.da];
-
- w_ctr(pprt, val);
- return val;
+static int set_ctrl_bits(void)
+{
+ int val, bit;
+
+ val = r_ctr(pprt);
+ for (bit = 0; bit < LCD_BITS; bit++)
+ val &= lcd_bits[LCD_PORT_C][bit][BIT_MSK];
+
+ val |= lcd_bits[LCD_PORT_C][LCD_BIT_E][bits.e]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_RS][bits.rs]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_RW][bits.rw]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_BL][bits.bl]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_CL][bits.cl]
+ | lcd_bits[LCD_PORT_C][LCD_BIT_DA][bits.da];
+
+ w_ctr(pprt, val);
+ return val;
}
/* sets ctrl & data port bits according to current signals values */
-static void set_bits(void) {
- set_data_bits();
- set_ctrl_bits();
+static void set_bits(void)
+{
+ set_data_bits();
+ set_ctrl_bits();
}
/*
* out(dport, in(dport) & d_val[2] | d_val[signal_state])
* out(cport, in(cport) & c_val[2] | c_val[signal_state])
*/
-void pin_to_bits(int pin, unsigned char *d_val, unsigned char *c_val) {
- int d_bit, c_bit, inv;
-
- d_val[0] = c_val[0] = d_val[1] = c_val[1] = 0;
- d_val[2] = c_val[2] = 0xFF;
-
- if (pin == 0)
- return;
-
- inv = (pin < 0);
- if (inv)
- pin = -pin;
-
- d_bit = c_bit = 0;
-
- switch (pin) {
- case PIN_STROBE: /* strobe, inverted */
- c_bit = PNL_PSTROBE;
- inv = !inv;
- break;
- case PIN_D0 ... PIN_D7: /* D0 - D7 = 2 - 9 */
- d_bit = 1 << (pin - 2);
- break;
- case PIN_AUTOLF: /* autofeed, inverted */
- c_bit = PNL_PAUTOLF;
- inv = !inv;
- break;
- case PIN_INITP: /* init, direct */
- c_bit = PNL_PINITP;
- break;
- case PIN_SELECP: /* select_in, inverted */
- c_bit = PNL_PSELECP;
- inv = !inv;
- break;
- default: /* unknown pin, ignore */
- break;
- }
-
- if (c_bit) {
- c_val[2] &= ~c_bit;
- c_val[!inv] = c_bit;
- } else if (d_bit) {
- d_val[2] &= ~d_bit;
- d_val[!inv] = d_bit;
- }
+void pin_to_bits(int pin, unsigned char *d_val, unsigned char *c_val)
+{
+ int d_bit, c_bit, inv;
+
+ d_val[0] = c_val[0] = d_val[1] = c_val[1] = 0;
+ d_val[2] = c_val[2] = 0xFF;
+
+ if (pin == 0)
+ return;
+
+ inv = (pin < 0);
+ if (inv)
+ pin = -pin;
+
+ d_bit = c_bit = 0;
+
+ switch (pin) {
+ case PIN_STROBE: /* strobe, inverted */
+ c_bit = PNL_PSTROBE;
+ inv = !inv;
+ break;
+ case PIN_D0...PIN_D7: /* D0 - D7 = 2 - 9 */
+ d_bit = 1 << (pin - 2);
+ break;
+ case PIN_AUTOLF: /* autofeed, inverted */
+ c_bit = PNL_PAUTOLF;
+ inv = !inv;
+ break;
+ case PIN_INITP: /* init, direct */
+ c_bit = PNL_PINITP;
+ break;
+ case PIN_SELECP: /* select_in, inverted */
+ c_bit = PNL_PSELECP;
+ inv = !inv;
+ break;
+ default: /* unknown pin, ignore */
+ break;
+ }
+
+ if (c_bit) {
+ c_val[2] &= ~c_bit;
+ c_val[!inv] = c_bit;
+ } else if (d_bit) {
+ d_val[2] &= ~d_bit;
+ d_val[!inv] = d_bit;
+ }
}
/* sleeps that many milliseconds with a reschedule */
-static void long_sleep(int ms) {
-
- if (in_interrupt())
- mdelay(ms);
- else {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout((ms*HZ+999)/1000);
- }
-}
+static void long_sleep(int ms)
+{
+ if (in_interrupt())
+ mdelay(ms);
+ else {
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout((ms * HZ + 999) / 1000);
+ }
+}
/* send a serial byte to the LCD panel. The caller is responsible for locking if needed. */
-static void lcd_send_serial(int byte) {
- int bit;
-
- /* the data bit is set on D0, and the clock on STROBE.
- * LCD reads D0 on STROBE's rising edge.
- */
- for (bit = 0; bit < 8; bit++) {
- bits.cl = BIT_CLR; /* CLK low */
- set_bits();
- bits.da = byte & 1;
- set_bits();
- udelay(2); /* maintain the data during 2 us before CLK up */
- bits.cl = BIT_SET; /* CLK high */
- set_bits();
- udelay(1); /* maintain the strobe during 1 us */
- byte >>= 1;
- }
+static void lcd_send_serial(int byte)
+{
+ int bit;
+
+ /* the data bit is set on D0, and the clock on STROBE.
+ * LCD reads D0 on STROBE's rising edge.
+ */
+ for (bit = 0; bit < 8; bit++) {
+ bits.cl = BIT_CLR; /* CLK low */
+ set_bits();
+ bits.da = byte & 1;
+ set_bits();
+ udelay(2); /* maintain the data during 2 us before CLK up */
+ bits.cl = BIT_SET; /* CLK high */
+ set_bits();
+ udelay(1); /* maintain the strobe during 1 us */
+ byte >>= 1;
+ }
}
/* turn the backlight on or off */
-static void lcd_backlight(int on) {
- if (lcd_bl_pin == PIN_NONE)
- return;
-
- /* The backlight is activated by seting the AUTOFEED line to +5V */
- spin_lock(&pprt_lock);
- bits.bl = on;
- set_bits();
- spin_unlock(&pprt_lock);
+static void lcd_backlight(int on)
+{
+ if (lcd_bl_pin == PIN_NONE)
+ return;
+
+ /* The backlight is activated by seting the AUTOFEED line to +5V */
+ spin_lock(&pprt_lock);
+ bits.bl = on;
+ set_bits();
+ spin_unlock(&pprt_lock);
}
/* send a command to the LCD panel in serial mode */
-static void lcd_write_cmd_s(int cmd) {
- spin_lock(&pprt_lock);
- lcd_send_serial(0x1F); /* R/W=W, RS=0 */
- lcd_send_serial(cmd & 0x0F);
- lcd_send_serial((cmd >> 4) & 0x0F);
- udelay(40); /* the shortest command takes at least 40 us */
- spin_unlock(&pprt_lock);
+static void lcd_write_cmd_s(int cmd)
+{
+ spin_lock(&pprt_lock);
+ lcd_send_serial(0x1F); /* R/W=W, RS=0 */
+ lcd_send_serial(cmd & 0x0F);
+ lcd_send_serial((cmd >> 4) & 0x0F);
+ udelay(40); /* the shortest command takes at least 40 us */
+ spin_unlock(&pprt_lock);
}
/* send data to the LCD panel in serial mode */
-static void lcd_write_data_s(int data) {
- spin_lock(&pprt_lock);
- lcd_send_serial(0x5F); /* R/W=W, RS=1 */
- lcd_send_serial(data & 0x0F);
- lcd_send_serial((data >> 4) & 0x0F);
- udelay(40); /* the shortest data takes at least 40 us */
- spin_unlock(&pprt_lock);
+static void lcd_write_data_s(int data)
+{
+ spin_lock(&pprt_lock);
+ lcd_send_serial(0x5F); /* R/W=W, RS=1 */
+ lcd_send_serial(data & 0x0F);
+ lcd_send_serial((data >> 4) & 0x0F);
+ udelay(40); /* the shortest data takes at least 40 us */
+ spin_unlock(&pprt_lock);
}
/* send a command to the LCD panel in 8 bits parallel mode */
-static void lcd_write_cmd_p8(int cmd) {
- spin_lock(&pprt_lock);
- /* present the data to the data port */
- w_dtr(pprt, cmd);
- udelay(20); /* maintain the data during 20 us before the strobe */
+static void lcd_write_cmd_p8(int cmd)
+{
+ spin_lock(&pprt_lock);
+ /* present the data to the data port */
+ w_dtr(pprt, cmd);
+ udelay(20); /* maintain the data during 20 us before the strobe */
- bits.e = BIT_SET ; bits.rs = BIT_CLR ; bits.rw = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_SET;
+ bits.rs = BIT_CLR;
+ bits.rw = BIT_CLR;
+ set_ctrl_bits();
- udelay(40); /* maintain the strobe during 40 us */
+ udelay(40); /* maintain the strobe during 40 us */
- bits.e = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_CLR;
+ set_ctrl_bits();
- udelay(120); /* the shortest command takes at least 120 us */
- spin_unlock(&pprt_lock);
+ udelay(120); /* the shortest command takes at least 120 us */
+ spin_unlock(&pprt_lock);
}
/* send data to the LCD panel in 8 bits parallel mode */
-static void lcd_write_data_p8(int data) {
- spin_lock(&pprt_lock);
- /* present the data to the data port */
- w_dtr(pprt, data);
- udelay(20); /* maintain the data during 20 us before the strobe */
+static void lcd_write_data_p8(int data)
+{
+ spin_lock(&pprt_lock);
+ /* present the data to the data port */
+ w_dtr(pprt, data);
+ udelay(20); /* maintain the data during 20 us before the strobe */
- bits.e = BIT_SET ; bits.rs = BIT_SET ; bits.rw = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_SET;
+ bits.rs = BIT_SET;
+ bits.rw = BIT_CLR;
+ set_ctrl_bits();
- udelay(40); /* maintain the strobe during 40 us */
+ udelay(40); /* maintain the strobe during 40 us */
- bits.e = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_CLR;
+ set_ctrl_bits();
- udelay(45); /* the shortest data takes at least 45 us */
- spin_unlock(&pprt_lock);
+ udelay(45); /* the shortest data takes at least 45 us */
+ spin_unlock(&pprt_lock);
}
-static void lcd_gotoxy(void) {
- lcd_write_cmd(0x80 /* set DDRAM address */
- | (lcd_addr_y ? lcd_hwidth : 0)
- /* we force the cursor to stay at the end of the line if it wants to go farther */
- | ((lcd_addr_x < lcd_bwidth) ? lcd_addr_x & (lcd_hwidth-1) : lcd_bwidth - 1));
+static void lcd_gotoxy(void)
+{
+ lcd_write_cmd(0x80 /* set DDRAM address */
+ | (lcd_addr_y ? lcd_hwidth : 0)
+ /* we force the cursor to stay at the end of the line if it wants to go farther */
+ | ((lcd_addr_x < lcd_bwidth) ? lcd_addr_x &
+ (lcd_hwidth - 1) : lcd_bwidth - 1));
}
-static void lcd_print(char c) {
- if (lcd_addr_x < lcd_bwidth) {
- if (lcd_char_conv != NULL)
- c = lcd_char_conv[(unsigned char)c];
- lcd_write_data(c);
- lcd_addr_x++;
- }
- /* prevents the cursor from wrapping onto the next line */
- if (lcd_addr_x == lcd_bwidth) {
- lcd_gotoxy();
- }
+static void lcd_print(char c)
+{
+ if (lcd_addr_x < lcd_bwidth) {
+ if (lcd_char_conv != NULL)
+ c = lcd_char_conv[(unsigned char)c];
+ lcd_write_data(c);
+ lcd_addr_x++;
+ }
+ /* prevents the cursor from wrapping onto the next line */
+ if (lcd_addr_x == lcd_bwidth)
+ lcd_gotoxy();
}
/* fills the display with spaces and resets X/Y */
-static void lcd_clear_fast_s(void) {
- int pos;
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
-
- spin_lock(&pprt_lock);
- for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
- lcd_send_serial(0x5F); /* R/W=W, RS=1 */
- lcd_send_serial(' ' & 0x0F);
- lcd_send_serial((' ' >> 4) & 0x0F);
- udelay(40); /* the shortest data takes at least 40 us */
- }
- spin_unlock(&pprt_lock);
-
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
+static void lcd_clear_fast_s(void)
+{
+ int pos;
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
+
+ spin_lock(&pprt_lock);
+ for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
+ lcd_send_serial(0x5F); /* R/W=W, RS=1 */
+ lcd_send_serial(' ' & 0x0F);
+ lcd_send_serial((' ' >> 4) & 0x0F);
+ udelay(40); /* the shortest data takes at least 40 us */
+ }
+ spin_unlock(&pprt_lock);
+
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
}
/* fills the display with spaces and resets X/Y */
-static void lcd_clear_fast_p8(void) {
- int pos;
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
+static void lcd_clear_fast_p8(void)
+{
+ int pos;
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
- spin_lock(&pprt_lock);
- for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
- /* present the data to the data port */
- w_dtr(pprt, ' ');
- udelay(20); /* maintain the data during 20 us before the strobe */
+ spin_lock(&pprt_lock);
+ for (pos = 0; pos < lcd_height * lcd_hwidth; pos++) {
+ /* present the data to the data port */
+ w_dtr(pprt, ' ');
+ udelay(20); /* maintain the data during 20 us before the strobe */
- bits.e = BIT_SET ; bits.rs = BIT_SET ; bits.rw = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_SET;
+ bits.rs = BIT_SET;
+ bits.rw = BIT_CLR;
+ set_ctrl_bits();
- udelay(40); /* maintain the strobe during 40 us */
+ udelay(40); /* maintain the strobe during 40 us */
- bits.e = BIT_CLR;
- set_ctrl_bits();
+ bits.e = BIT_CLR;
+ set_ctrl_bits();
- udelay(45); /* the shortest data takes at least 45 us */
- }
- spin_unlock(&pprt_lock);
+ udelay(45); /* the shortest data takes at least 45 us */
+ }
+ spin_unlock(&pprt_lock);
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
}
/* clears the display and resets X/Y */
-static void lcd_clear_display(void) {
- lcd_write_cmd(0x01); /* clear display */
- lcd_addr_x = lcd_addr_y = 0;
- /* we must wait a few milliseconds (15) */
- long_sleep(15);
+static void lcd_clear_display(void)
+{
+ lcd_write_cmd(0x01); /* clear display */
+ lcd_addr_x = lcd_addr_y = 0;
+ /* we must wait a few milliseconds (15) */
+ long_sleep(15);
}
-static void lcd_init_display(void) {
+static void lcd_init_display(void)
+{
- lcd_flags = ((lcd_height > 1) ? LCD_FLAG_N : 0)
- | LCD_FLAG_D | LCD_FLAG_C | LCD_FLAG_B;
+ lcd_flags = ((lcd_height > 1) ? LCD_FLAG_N : 0)
+ | LCD_FLAG_D | LCD_FLAG_C | LCD_FLAG_B;
- long_sleep(20); /* wait 20 ms after power-up for the paranoid */
+ long_sleep(20); /* wait 20 ms after power-up for the paranoid */
- lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
- long_sleep(10);
- lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
- long_sleep(10);
- lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
- long_sleep(10);
+ lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
+ long_sleep(10);
+ lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
+ long_sleep(10);
+ lcd_write_cmd(0x30); /* 8bits, 1 line, small fonts */
+ long_sleep(10);
- lcd_write_cmd(0x30 /* set font height and lines number */
- | ((lcd_flags & LCD_FLAG_F)?4:0)
- | ((lcd_flags & LCD_FLAG_N)?8:0)
- );
- long_sleep(10);
+ lcd_write_cmd(0x30 /* set font height and lines number */
+ | ((lcd_flags & LCD_FLAG_F) ? 4 : 0)
+ | ((lcd_flags & LCD_FLAG_N) ? 8 : 0)
+ );
+ long_sleep(10);
- lcd_write_cmd(0x08); /* display off, cursor off, blink off */
- long_sleep(10);
+ lcd_write_cmd(0x08); /* display off, cursor off, blink off */
+ long_sleep(10);
- lcd_write_cmd(0x08 /* set display mode */
- | ((lcd_flags & LCD_FLAG_D)?4:0)
- | ((lcd_flags & LCD_FLAG_C)?2:0)
- | ((lcd_flags & LCD_FLAG_B)?1:0)
- );
+ lcd_write_cmd(0x08 /* set display mode */
+ | ((lcd_flags & LCD_FLAG_D) ? 4 : 0)
+ | ((lcd_flags & LCD_FLAG_C) ? 2 : 0)
+ | ((lcd_flags & LCD_FLAG_B) ? 1 : 0)
+ );
- lcd_backlight((lcd_flags & LCD_FLAG_L) ? 1 : 0);
+ lcd_backlight((lcd_flags & LCD_FLAG_L) ? 1 : 0);
- long_sleep(10);
+ long_sleep(10);
- lcd_write_cmd(0x06); /* entry mode set : increment, cursor shifting */
+ lcd_write_cmd(0x06); /* entry mode set : increment, cursor shifting */
- lcd_clear_display();
+ lcd_clear_display();
}
/*
*
*/
-static ssize_t lcd_write(struct file * file,
- const char * buf, size_t count, loff_t *ppos ) {
-
- const char *tmp = buf;
- char c;
-
- for( ; count-- > 0; (ppos ? (*ppos)++ : 0), ++tmp ) {
- if (!in_interrupt() && (((count + 1) & 0x1f) == 0)) {
- schedule(); /* let's be a little nice with other processes that need some CPU */
- }
- if (ppos == NULL && file == NULL)
- c = *tmp; /* let's not use get_user() from the kernel ! */
- else if (get_user( c, tmp ))
- return -EFAULT;
-
- /* first, we'll test if we're in escape mode */
- if ((c != '\n') && lcd_escape_len >= 0) { /* yes, let's add this char to the buffer */
- lcd_escape[lcd_escape_len++] = c;
- lcd_escape[lcd_escape_len] = 0;
- }
- else {
- lcd_escape_len = -1; /* aborts any previous escape sequence */
-
- switch (c) {
- case LCD_ESCAPE_CHAR: /* start of an escape sequence */
- lcd_escape_len = 0;
- lcd_escape[lcd_escape_len] = 0;
- break;
- case '\b': /* go back one char and clear it */
- if (lcd_addr_x > 0) {
- if (lcd_addr_x < lcd_bwidth) /* check if we're not at the end of the line */
- lcd_write_cmd(0x10); /* back one char */
- lcd_addr_x--;
- }
- lcd_write_data(' '); /* replace with a space */
- lcd_write_cmd(0x10); /* back one char again */
- break;
- case '\014': /* quickly clear the display */
- lcd_clear_fast();
- break;
- case '\n': /* flush the remainder of the current line and go to the
- beginning of the next line */
- for (; lcd_addr_x<lcd_bwidth; lcd_addr_x++)
- lcd_write_data(' ');
- lcd_addr_x = 0;
- lcd_addr_y = (lcd_addr_y + 1) % lcd_height;
- lcd_gotoxy();
- break;
- case '\r': /* go to the beginning of the same line */
- lcd_addr_x = 0;
- lcd_gotoxy();
- break;
- case '\t': /* print a space instead of the tab */
- lcd_print(' ');
- break;
- default : /* simply print this char */
- lcd_print(c);
- break;
- }
- }
-
- /* now we'll see if we're in an escape mode and if the current
- escape sequence can be understood.
- */
- if (lcd_escape_len >= 2) { /* minimal length for an escape command */
- int processed = 0; /* 1 means the command has been processed */
-
- if (!strcmp(lcd_escape,"[2J")) { /* Clear the display */
- lcd_clear_fast(); /* clear display */
- processed = 1;
- }
- else if (!strcmp(lcd_escape,"[H")) { /* Cursor to home */
- lcd_addr_x = lcd_addr_y = 0;
- lcd_gotoxy();
- processed = 1;
- }
- /* codes starting with ^[[L */
- else if ((lcd_escape_len >= 3) &&
- (lcd_escape[0]=='[') && (lcd_escape[1]=='L')) { /* LCD special codes */
-
- char *esc = lcd_escape + 2;
- int oldflags = lcd_flags;
-
- /* check for display mode flags */
- switch (*esc) {
- case 'D' : /* Display ON */
- lcd_flags |= LCD_FLAG_D;
- processed = 1;
- break;
- case 'd' : /* Display OFF */
- lcd_flags &= ~LCD_FLAG_D;
- processed = 1;
- break;
- case 'C' : /* Cursor ON */
- lcd_flags |= LCD_FLAG_C;
- processed = 1;
- break;
- case 'c' : /* Cursor OFF */
- lcd_flags &= ~LCD_FLAG_C;
- processed = 1;
- break;
- case 'B' : /* Blink ON */
- lcd_flags |= LCD_FLAG_B;
- processed = 1;
- break;
- case 'b' : /* Blink OFF */
- lcd_flags &= ~LCD_FLAG_B;
- processed = 1;
- break;
- case '+' : /* Back light ON */
- lcd_flags |= LCD_FLAG_L;
- processed = 1;
- break;
- case '-' : /* Back light OFF */
- lcd_flags &= ~LCD_FLAG_L;
- processed = 1;
- break;
- case '*' : /* flash back light using the keypad timer */
- if (scan_timer.function != NULL) {
- if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
- lcd_backlight(1);
- light_tempo = FLASH_LIGHT_TEMPO;
- }
- processed = 1;
- break;
- case 'f' : /* Small Font */
- lcd_flags &= ~LCD_FLAG_F;
- processed = 1;
- break;
- case 'F' : /* Large Font */
- lcd_flags |= LCD_FLAG_F;
- processed = 1;
- break;
- case 'n' : /* One Line */
- lcd_flags &= ~LCD_FLAG_N;
- processed = 1;
- break;
- case 'N' : /* Two Lines */
- lcd_flags |= LCD_FLAG_N;
- break;
-
- case 'l' : /* Shift Cursor Left */
- if (lcd_addr_x > 0) {
- if (lcd_addr_x < lcd_bwidth)
- lcd_write_cmd(0x10); /* back one char if not at end of line */
- lcd_addr_x--;
- }
- processed = 1;
- break;
-
- case 'r' : /* shift cursor right */
- if (lcd_addr_x < lcd_width) {
- if (lcd_addr_x < (lcd_bwidth - 1))
- lcd_write_cmd(0x14); /* allow the cursor to pass the end of the line */
- lcd_addr_x++;
- }
- processed = 1;
- break;
-
- case 'L' : /* shift display left */
- lcd_left_shift++;
- lcd_write_cmd(0x18);
- processed = 1;
- break;
-
- case 'R' : /* shift display right */
- lcd_left_shift--;
- lcd_write_cmd(0x1C);
- processed = 1;
- break;
-
- case 'k' : { /* kill end of line */
- int x;
- for (x=lcd_addr_x; x<lcd_bwidth; x++)
- lcd_write_data(' ');
- lcd_gotoxy(); /* restore cursor position */
- processed = 1;
- break;
- }
- case 'I' : /* reinitialize display */
- lcd_init_display();
- lcd_left_shift = 0;
- processed = 1;
- break;
-
- case 'G' : /* Generator : LGcxxxxx...xx; */ {
- /* must have <c> between '0' and '7', representing the numerical
- * ASCII code of the redefined character, and <xx...xx> a sequence
- * of 16 hex digits representing 8 bytes for each character. Most
- * LCDs will only use 5 lower bits of the 7 first bytes.
- */
-
- unsigned char cgbytes[8];
- unsigned char cgaddr;
- int cgoffset;
- int shift;
- char value;
- int addr;
-
- if (strchr(esc, ';') == NULL)
- break;
-
- esc++;
-
- cgaddr = *(esc++) - '0';
- if (cgaddr > 7) {
- processed = 1;
- break;
- }
-
- cgoffset = 0;
- shift = 0;
- value = 0;
- while (*esc && cgoffset < 8) {
- shift ^= 4;
- if (*esc >= '0' && *esc <='9')
- value |= (*esc - '0') << shift;
- else if (*esc >= 'A' && *esc <='Z')
- value |= (*esc - 'A' + 10) << shift;
- else if (*esc >= 'a' && *esc <='z')
- value |= (*esc - 'a' + 10) << shift;
- else {
- esc++;
- continue;
- }
+static ssize_t lcd_write(struct file *file,
+ const char *buf, size_t count, loff_t *ppos)
+{
- if (shift == 0) {
- cgbytes[cgoffset++] = value;
- value = 0;
+ const char *tmp = buf;
+ char c;
+
+ for (; count-- > 0; (ppos ? (*ppos)++ : 0), ++tmp) {
+ if (!in_interrupt() && (((count + 1) & 0x1f) == 0))
+ schedule(); /* let's be a little nice with other processes that need some CPU */
+
+ if (ppos == NULL && file == NULL)
+ c = *tmp; /* let's not use get_user() from the kernel ! */
+ else if (get_user(c, tmp))
+ return -EFAULT;
+
+ /* first, we'll test if we're in escape mode */
+ if ((c != '\n') && lcd_escape_len >= 0) { /* yes, let's add this char to the buffer */
+ lcd_escape[lcd_escape_len++] = c;
+ lcd_escape[lcd_escape_len] = 0;
+ } else {
+ lcd_escape_len = -1; /* aborts any previous escape sequence */
+
+ switch (c) {
+ case LCD_ESCAPE_CHAR: /* start of an escape sequence */
+ lcd_escape_len = 0;
+ lcd_escape[lcd_escape_len] = 0;
+ break;
+ case '\b': /* go back one char and clear it */
+ if (lcd_addr_x > 0) {
+ if (lcd_addr_x < lcd_bwidth) /* check if we're not at the end of the line */
+ lcd_write_cmd(0x10); /* back one char */
+ lcd_addr_x--;
+ }
+ lcd_write_data(' '); /* replace with a space */
+ lcd_write_cmd(0x10); /* back one char again */
+ break;
+ case '\014': /* quickly clear the display */
+ lcd_clear_fast();
+ break;
+ case '\n': /* flush the remainder of the current line and go to the
+ beginning of the next line */
+ for (; lcd_addr_x < lcd_bwidth; lcd_addr_x++)
+ lcd_write_data(' ');
+ lcd_addr_x = 0;
+ lcd_addr_y = (lcd_addr_y + 1) % lcd_height;
+ lcd_gotoxy();
+ break;
+ case '\r': /* go to the beginning of the same line */
+ lcd_addr_x = 0;
+ lcd_gotoxy();
+ break;
+ case '\t': /* print a space instead of the tab */
+ lcd_print(' ');
+ break;
+ default: /* simply print this char */
+ lcd_print(c);
+ break;
}
-
- esc++;
- }
-
- lcd_write_cmd(0x40 | (cgaddr * 8));
- for (addr = 0; addr < cgoffset; addr++) {
- lcd_write_data(cgbytes[addr]);
- }
-
- lcd_gotoxy(); /* ensures that we stop writing to CGRAM */
- processed = 1;
- break;
}
- case 'x' : /* gotoxy : LxXXX[yYYY]; */
- case 'y' : /* gotoxy : LyYYY[xXXX]; */
- if (strchr(esc, ';') == NULL)
- break;
- while (*esc) {
- if (*esc == 'x') {
- esc++;
- lcd_addr_x = 0;
- while (isdigit(*esc)) {
- lcd_addr_x = lcd_addr_x*10 + (*esc - '0');
- esc++;
- }
+ /* now we'll see if we're in an escape mode and if the current
+ escape sequence can be understood.
+ */
+ if (lcd_escape_len >= 2) { /* minimal length for an escape command */
+ int processed = 0; /* 1 means the command has been processed */
+
+ if (!strcmp(lcd_escape, "[2J")) { /* Clear the display */
+ lcd_clear_fast(); /* clear display */
+ processed = 1;
+ } else if (!strcmp(lcd_escape, "[H")) { /* Cursor to home */
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_gotoxy();
+ processed = 1;
}
- else if (*esc == 'y') {
- esc++;
- lcd_addr_y = 0;
- while (isdigit(*esc)) {
- lcd_addr_y = lcd_addr_y*10 + (*esc - '0');
- esc++;
- }
+ /* codes starting with ^[[L */
+ else if ((lcd_escape_len >= 3) &&
+ (lcd_escape[0] == '[') && (lcd_escape[1] == 'L')) { /* LCD special codes */
+
+ char *esc = lcd_escape + 2;
+ int oldflags = lcd_flags;
+
+ /* check for display mode flags */
+ switch (*esc) {
+ case 'D': /* Display ON */
+ lcd_flags |= LCD_FLAG_D;
+ processed = 1;
+ break;
+ case 'd': /* Display OFF */
+ lcd_flags &= ~LCD_FLAG_D;
+ processed = 1;
+ break;
+ case 'C': /* Cursor ON */
+ lcd_flags |= LCD_FLAG_C;
+ processed = 1;
+ break;
+ case 'c': /* Cursor OFF */
+ lcd_flags &= ~LCD_FLAG_C;
+ processed = 1;
+ break;
+ case 'B': /* Blink ON */
+ lcd_flags |= LCD_FLAG_B;
+ processed = 1;
+ break;
+ case 'b': /* Blink OFF */
+ lcd_flags &= ~LCD_FLAG_B;
+ processed = 1;
+ break;
+ case '+': /* Back light ON */
+ lcd_flags |= LCD_FLAG_L;
+ processed = 1;
+ break;
+ case '-': /* Back light OFF */
+ lcd_flags &= ~LCD_FLAG_L;
+ processed = 1;
+ break;
+ case '*': /* flash back light using the keypad timer */
+ if (scan_timer.function != NULL) {
+ if (light_tempo == 0
+ && ((lcd_flags & LCD_FLAG_L)
+ == 0))
+ lcd_backlight(1);
+ light_tempo = FLASH_LIGHT_TEMPO;
+ }
+ processed = 1;
+ break;
+ case 'f': /* Small Font */
+ lcd_flags &= ~LCD_FLAG_F;
+ processed = 1;
+ break;
+ case 'F': /* Large Font */
+ lcd_flags |= LCD_FLAG_F;
+ processed = 1;
+ break;
+ case 'n': /* One Line */
+ lcd_flags &= ~LCD_FLAG_N;
+ processed = 1;
+ break;
+ case 'N': /* Two Lines */
+ lcd_flags |= LCD_FLAG_N;
+ break;
+
+ case 'l': /* Shift Cursor Left */
+ if (lcd_addr_x > 0) {
+ if (lcd_addr_x < lcd_bwidth)
+ lcd_write_cmd(0x10); /* back one char if not at end of line */
+ lcd_addr_x--;
+ }
+ processed = 1;
+ break;
+
+ case 'r': /* shift cursor right */
+ if (lcd_addr_x < lcd_width) {
+ if (lcd_addr_x < (lcd_bwidth - 1))
+ lcd_write_cmd(0x14); /* allow the cursor to pass the end of the line */
+ lcd_addr_x++;
+ }
+ processed = 1;
+ break;
+
+ case 'L': /* shift display left */
+ lcd_left_shift++;
+ lcd_write_cmd(0x18);
+ processed = 1;
+ break;
+
+ case 'R': /* shift display right */
+ lcd_left_shift--;
+ lcd_write_cmd(0x1C);
+ processed = 1;
+ break;
+
+ case 'k':{ /* kill end of line */
+ int x;
+ for (x = lcd_addr_x; x < lcd_bwidth; x++)
+ lcd_write_data(' ');
+ lcd_gotoxy(); /* restore cursor position */
+ processed = 1;
+ break;
+ }
+ case 'I': /* reinitialize display */
+ lcd_init_display();
+ lcd_left_shift = 0;
+ processed = 1;
+ break;
+
+ case 'G': /* Generator : LGcxxxxx...xx; */ {
+ /* must have <c> between '0' and '7', representing the numerical
+ * ASCII code of the redefined character, and <xx...xx> a sequence
+ * of 16 hex digits representing 8 bytes for each character. Most
+ * LCDs will only use 5 lower bits of the 7 first bytes.
+ */
+
+ unsigned char cgbytes[8];
+ unsigned char cgaddr;
+ int cgoffset;
+ int shift;
+ char value;
+ int addr;
+
+ if (strchr(esc, ';') == NULL)
+ break;
+
+ esc++;
+
+ cgaddr = *(esc++) - '0';
+ if (cgaddr > 7) {
+ processed = 1;
+ break;
+ }
+
+ cgoffset = 0;
+ shift = 0;
+ value = 0;
+ while (*esc && cgoffset < 8) {
+ shift ^= 4;
+ if (*esc >= '0' && *esc <= '9')
+ value |= (*esc - '0') << shift;
+ else if (*esc >= 'A' && *esc <= 'Z')
+ value |= (*esc - 'A' + 10) << shift;
+ else if (*esc >= 'a' && *esc <= 'z')
+ value |= (*esc - 'a' + 10) << shift;
+ else {
+ esc++;
+ continue;
+ }
+
+ if (shift == 0) {
+ cgbytes[cgoffset++] = value;
+ value = 0;
+ }
+
+ esc++;
+ }
+
+ lcd_write_cmd(0x40 | (cgaddr * 8));
+ for (addr = 0; addr < cgoffset; addr++)
+ lcd_write_data(cgbytes[addr]);
+
+ lcd_gotoxy(); /* ensures that we stop writing to CGRAM */
+ processed = 1;
+ break;
+ }
+ case 'x': /* gotoxy : LxXXX[yYYY]; */
+ case 'y': /* gotoxy : LyYYY[xXXX]; */
+ if (strchr(esc, ';') == NULL)
+ break;
+
+ while (*esc) {
+ if (*esc == 'x') {
+ esc++;
+ lcd_addr_x = 0;
+ while (isdigit(*esc)) {
+ lcd_addr_x =
+ lcd_addr_x *
+ 10 + (*esc -
+ '0');
+ esc++;
+ }
+ } else if (*esc == 'y') {
+ esc++;
+ lcd_addr_y = 0;
+ while (isdigit(*esc)) {
+ lcd_addr_y =
+ lcd_addr_y *
+ 10 + (*esc -
+ '0');
+ esc++;
+ }
+ } else
+ break;
+ }
+
+ lcd_gotoxy();
+ processed = 1;
+ break;
+ } /* end of switch */
+
+ /* Check wether one flag was changed */
+ if (oldflags != lcd_flags) {
+ /* check wether one of B,C,D flags was changed */
+ if ((oldflags ^ lcd_flags) &
+ (LCD_FLAG_B | LCD_FLAG_C | LCD_FLAG_D))
+ /* set display mode */
+ lcd_write_cmd(0x08 |
+ ((lcd_flags & LCD_FLAG_D) ? 4 : 0) |
+ ((lcd_flags & LCD_FLAG_C) ? 2 : 0) |
+ ((lcd_flags & LCD_FLAG_B) ? 1 : 0));
+ /* check wether one of F,N flags was changed */
+ else if ((oldflags ^ lcd_flags) &
+ (LCD_FLAG_F | LCD_FLAG_N))
+ lcd_write_cmd(0x30 |
+ ((lcd_flags & LCD_FLAG_F) ? 4 : 0) |
+ ((lcd_flags & LCD_FLAG_N) ? 8 : 0));
+ /* check wether L flag was changed */
+ else if ((oldflags ^ lcd_flags) &
+ (LCD_FLAG_L)) {
+ if (lcd_flags & (LCD_FLAG_L))
+ lcd_backlight(1);
+ else if (light_tempo == 0) /* switch off the light only when the tempo lighting is gone */
+ lcd_backlight(0);
+ }
+ }
}
- else break;
- }
-
- lcd_gotoxy();
- processed = 1;
- break;
- } /* end of switch */
-
- /* Check wether one flag was changed */
- if (oldflags != lcd_flags) {
- /* check wether one of B,C,D flags was changed */
- if ((oldflags ^ lcd_flags) & (LCD_FLAG_B | LCD_FLAG_C | LCD_FLAG_D))
- lcd_write_cmd(0x08 /* set display mode */
- | ((lcd_flags & LCD_FLAG_D)?4:0)
- | ((lcd_flags & LCD_FLAG_C)?2:0)
- | ((lcd_flags & LCD_FLAG_B)?1:0)
- );
- /* check wether one of F,N flags was changed */
- else if ((oldflags ^ lcd_flags) & (LCD_FLAG_F | LCD_FLAG_N))
- lcd_write_cmd(0x30
- | ((lcd_flags & LCD_FLAG_F)?4:0)
- | ((lcd_flags & LCD_FLAG_N)?8:0)
- );
- /* check wether L flag was changed */
- else if ((oldflags ^ lcd_flags) & (LCD_FLAG_L)) {
- if (lcd_flags & (LCD_FLAG_L))
- lcd_backlight(1);
- else if (light_tempo == 0) /* switch off the light only when the tempo lighting is gone */
- lcd_backlight(0);
- }
- }
- } /* LCD special escape codes */
- /* flush the escape sequence if it's been processed or if it is
- getting too long. */
- if (processed || (lcd_escape_len >= LCD_ESCAPE_LEN))
- lcd_escape_len = -1;
- } /* escape codes */
- }
+ /* LCD special escape codes */
+ /* flush the escape sequence if it's been processed or if it is
+ getting too long. */
+ if (processed || (lcd_escape_len >= LCD_ESCAPE_LEN))
+ lcd_escape_len = -1;
+ } /* escape codes */
+ }
- return( tmp - buf );
+ return tmp - buf;
}
-static int lcd_open( struct inode *inode, struct file *file ) {
- if (lcd_open_cnt)
- return( -EBUSY ); /* open only once at a time */
+static int lcd_open(struct inode *inode, struct file *file)
+{
+ if (lcd_open_cnt)
+ return -EBUSY; /* open only once at a time */
- if (file->f_mode & FMODE_READ) /* device is write-only */
- return ( -EPERM );
+ if (file->f_mode & FMODE_READ) /* device is write-only */
+ return -EPERM;
- if (lcd_must_clear) {
- lcd_clear_display();
- lcd_must_clear = 0;
- }
- lcd_open_cnt++;
- return( 0 );
+ if (lcd_must_clear) {
+ lcd_clear_display();
+ lcd_must_clear = 0;
+ }
+ lcd_open_cnt++;
+ return 0;
}
-static int lcd_release( struct inode *inode, struct file *file ) {
- lcd_open_cnt--;
- return( 0 );
+static int lcd_release(struct inode *inode, struct file *file)
+{
+ lcd_open_cnt--;
+ return 0;
}
-
static struct file_operations lcd_fops = {
- write: lcd_write,
- open: lcd_open,
- release: lcd_release,
+ .write = lcd_write,
+ .open = lcd_open,
+ .release = lcd_release,
};
static struct miscdevice lcd_dev = {
- LCD_MINOR,
- "lcd",
- &lcd_fops
+ LCD_MINOR,
+ "lcd",
+ &lcd_fops
};
-
-
/* public function usable from the kernel for any purpose */
-void panel_lcd_print(char *s) {
- if (lcd_enabled && lcd_initialized)
- lcd_write(NULL, s, strlen(s), NULL);
+void panel_lcd_print(char *s)
+{
+ if (lcd_enabled && lcd_initialized)
+ lcd_write(NULL, s, strlen(s), NULL);
}
-
/* initialize the LCD driver */
-void lcd_init(void) {
- switch (lcd_type) {
- case LCD_TYPE_OLD : /* parallel mode, 8 bits */
- if (lcd_proto < 0) lcd_proto = LCD_PROTO_PARALLEL;
- if (lcd_charset < 0) lcd_charset = LCD_CHARSET_NORMAL;
- if (lcd_e_pin == PIN_NOT_SET) lcd_e_pin = PIN_STROBE;
- if (lcd_rs_pin == PIN_NOT_SET) lcd_rs_pin = PIN_AUTOLF;
-
- if (lcd_width < 0) lcd_width = 40;
- if (lcd_bwidth < 0) lcd_bwidth = 40;
- if (lcd_hwidth < 0) lcd_hwidth = 64;
- if (lcd_height < 0) lcd_height = 2;
+void lcd_init(void)
+{
+ switch (lcd_type) {
+ case LCD_TYPE_OLD: /* parallel mode, 8 bits */
+ if (lcd_proto < 0)
+ lcd_proto = LCD_PROTO_PARALLEL;
+ if (lcd_charset < 0)
+ lcd_charset = LCD_CHARSET_NORMAL;
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = PIN_STROBE;
+ if (lcd_rs_pin == PIN_NOT_SET)
+ lcd_rs_pin = PIN_AUTOLF;
+
+ if (lcd_width < 0)
+ lcd_width = 40;
+ if (lcd_bwidth < 0)
+ lcd_bwidth = 40;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 64;
+ if (lcd_height < 0)
+ lcd_height = 2;
break;
- case LCD_TYPE_KS0074 : /* serial mode, ks0074 */
- if (lcd_proto < 0) lcd_proto = LCD_PROTO_SERIAL;
- if (lcd_charset < 0) lcd_charset = LCD_CHARSET_KS0074;
- if (lcd_bl_pin == PIN_NOT_SET) lcd_bl_pin = PIN_AUTOLF;
- if (lcd_cl_pin == PIN_NOT_SET) lcd_cl_pin = PIN_STROBE;
- if (lcd_da_pin == PIN_NOT_SET) lcd_da_pin = PIN_D0;
-
- if (lcd_width < 0) lcd_width = 16;
- if (lcd_bwidth < 0) lcd_bwidth = 40;
- if (lcd_hwidth < 0) lcd_hwidth = 16;
- if (lcd_height < 0) lcd_height = 2;
+ case LCD_TYPE_KS0074: /* serial mode, ks0074 */
+ if (lcd_proto < 0)
+ lcd_proto = LCD_PROTO_SERIAL;
+ if (lcd_charset < 0)
+ lcd_charset = LCD_CHARSET_KS0074;
+ if (lcd_bl_pin == PIN_NOT_SET)
+ lcd_bl_pin = PIN_AUTOLF;
+ if (lcd_cl_pin == PIN_NOT_SET)
+ lcd_cl_pin = PIN_STROBE;
+ if (lcd_da_pin == PIN_NOT_SET)
+ lcd_da_pin = PIN_D0;
+
+ if (lcd_width < 0)
+ lcd_width = 16;
+ if (lcd_bwidth < 0)
+ lcd_bwidth = 40;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 16;
+ if (lcd_height < 0)
+ lcd_height = 2;
break;
- case LCD_TYPE_NEXCOM : /* parallel mode, 8 bits, generic */
- if (lcd_proto < 0) lcd_proto = LCD_PROTO_PARALLEL;
- if (lcd_charset < 0) lcd_charset = LCD_CHARSET_NORMAL;
- if (lcd_e_pin == PIN_NOT_SET) lcd_e_pin = PIN_AUTOLF;
- if (lcd_rs_pin == PIN_NOT_SET) lcd_rs_pin = PIN_SELECP;
- if (lcd_rw_pin == PIN_NOT_SET) lcd_rw_pin = PIN_INITP;
-
- if (lcd_width < 0) lcd_width = 16;
- if (lcd_bwidth < 0) lcd_bwidth = 40;
- if (lcd_hwidth < 0) lcd_hwidth = 64;
- if (lcd_height < 0) lcd_height = 2;
+ case LCD_TYPE_NEXCOM: /* parallel mode, 8 bits, generic */
+ if (lcd_proto < 0)
+ lcd_proto = LCD_PROTO_PARALLEL;
+ if (lcd_charset < 0)
+ lcd_charset = LCD_CHARSET_NORMAL;
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = PIN_AUTOLF;
+ if (lcd_rs_pin == PIN_NOT_SET)
+ lcd_rs_pin = PIN_SELECP;
+ if (lcd_rw_pin == PIN_NOT_SET)
+ lcd_rw_pin = PIN_INITP;
+
+ if (lcd_width < 0)
+ lcd_width = 16;
+ if (lcd_bwidth < 0)
+ lcd_bwidth = 40;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 64;
+ if (lcd_height < 0)
+ lcd_height = 2;
break;
- case LCD_TYPE_CUSTOM : /* customer-defined */
- if (lcd_proto < 0) lcd_proto = DEFAULT_LCD_PROTO;
- if (lcd_charset < 0) lcd_charset = DEFAULT_LCD_CHARSET;
+ case LCD_TYPE_CUSTOM: /* customer-defined */
+ if (lcd_proto < 0)
+ lcd_proto = DEFAULT_LCD_PROTO;
+ if (lcd_charset < 0)
+ lcd_charset = DEFAULT_LCD_CHARSET;
/* default geometry will be set later */
break;
- case LCD_TYPE_HANTRONIX : /* parallel mode, 8 bits, hantronix-like */
- default :
- if (lcd_proto < 0) lcd_proto = LCD_PROTO_PARALLEL;
- if (lcd_charset < 0) lcd_charset = LCD_CHARSET_NORMAL;
- if (lcd_e_pin == PIN_NOT_SET) lcd_e_pin = PIN_STROBE;
- if (lcd_rs_pin == PIN_NOT_SET) lcd_rs_pin = PIN_SELECP;
-
- if (lcd_width < 0) lcd_width = 16;
- if (lcd_bwidth < 0) lcd_bwidth = 40;
- if (lcd_hwidth < 0) lcd_hwidth = 64;
- if (lcd_height < 0) lcd_height = 2;
+ case LCD_TYPE_HANTRONIX: /* parallel mode, 8 bits, hantronix-like */
+ default:
+ if (lcd_proto < 0)
+ lcd_proto = LCD_PROTO_PARALLEL;
+ if (lcd_charset < 0)
+ lcd_charset = LCD_CHARSET_NORMAL;
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = PIN_STROBE;
+ if (lcd_rs_pin == PIN_NOT_SET)
+ lcd_rs_pin = PIN_SELECP;
+
+ if (lcd_width < 0)
+ lcd_width = 16;
+ if (lcd_bwidth < 0)
+ lcd_bwidth = 40;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 64;
+ if (lcd_height < 0)
+ lcd_height = 2;
break;
- }
-
- /* this is used to catch wrong and default values */
- if (lcd_width <= 0) lcd_width = DEFAULT_LCD_WIDTH;
- if (lcd_bwidth <= 0) lcd_bwidth = DEFAULT_LCD_BWIDTH;
- if (lcd_hwidth <= 0) lcd_hwidth = DEFAULT_LCD_HWIDTH;
- if (lcd_height <= 0) lcd_height = DEFAULT_LCD_HEIGHT;
-
- if (lcd_proto == LCD_PROTO_SERIAL) { /* SERIAL */
- lcd_write_cmd = lcd_write_cmd_s;
- lcd_write_data = lcd_write_data_s;
- lcd_clear_fast = lcd_clear_fast_s;
+ }
- if (lcd_cl_pin == PIN_NOT_SET)
- lcd_cl_pin = DEFAULT_LCD_PIN_SCL;
- if (lcd_da_pin == PIN_NOT_SET)
- lcd_da_pin = DEFAULT_LCD_PIN_SDA;
+ /* this is used to catch wrong and default values */
+ if (lcd_width <= 0)
+ lcd_width = DEFAULT_LCD_WIDTH;
+ if (lcd_bwidth <= 0)
+ lcd_bwidth = DEFAULT_LCD_BWIDTH;
+ if (lcd_hwidth <= 0)
+ lcd_hwidth = DEFAULT_LCD_HWIDTH;
+ if (lcd_height <= 0)
+ lcd_height = DEFAULT_LCD_HEIGHT;
+
+ if (lcd_proto == LCD_PROTO_SERIAL) { /* SERIAL */
+ lcd_write_cmd = lcd_write_cmd_s;
+ lcd_write_data = lcd_write_data_s;
+ lcd_clear_fast = lcd_clear_fast_s;
+
+ if (lcd_cl_pin == PIN_NOT_SET)
+ lcd_cl_pin = DEFAULT_LCD_PIN_SCL;
+ if (lcd_da_pin == PIN_NOT_SET)
+ lcd_da_pin = DEFAULT_LCD_PIN_SDA;
+
+ } else { /* PARALLEL */
+ lcd_write_cmd = lcd_write_cmd_p8;
+ lcd_write_data = lcd_write_data_p8;
+ lcd_clear_fast = lcd_clear_fast_p8;
+
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = DEFAULT_LCD_PIN_E;
+ if (lcd_rs_pin == PIN_NOT_SET)
+ lcd_rs_pin = DEFAULT_LCD_PIN_RS;
+ if (lcd_rw_pin == PIN_NOT_SET)
+ lcd_rw_pin = DEFAULT_LCD_PIN_RW;
+ }
- } else { /* PARALLEL */
- lcd_write_cmd = lcd_write_cmd_p8;
- lcd_write_data = lcd_write_data_p8;
- lcd_clear_fast = lcd_clear_fast_p8;
+ if (lcd_bl_pin == PIN_NOT_SET)
+ lcd_bl_pin = DEFAULT_LCD_PIN_BL;
- if (lcd_e_pin == PIN_NOT_SET)
- lcd_e_pin = DEFAULT_LCD_PIN_E;
+ if (lcd_e_pin == PIN_NOT_SET)
+ lcd_e_pin = PIN_NONE;
if (lcd_rs_pin == PIN_NOT_SET)
- lcd_rs_pin = DEFAULT_LCD_PIN_RS;
+ lcd_rs_pin = PIN_NONE;
if (lcd_rw_pin == PIN_NOT_SET)
- lcd_rw_pin = DEFAULT_LCD_PIN_RW;
- }
-
- if (lcd_bl_pin == PIN_NOT_SET)
- lcd_bl_pin = DEFAULT_LCD_PIN_BL;
-
- if (lcd_e_pin == PIN_NOT_SET) lcd_e_pin = PIN_NONE;
- if (lcd_rs_pin == PIN_NOT_SET) lcd_rs_pin = PIN_NONE;
- if (lcd_rw_pin == PIN_NOT_SET) lcd_rw_pin = PIN_NONE;
- if (lcd_bl_pin == PIN_NOT_SET) lcd_bl_pin = PIN_NONE;
- if (lcd_cl_pin == PIN_NOT_SET) lcd_cl_pin = PIN_NONE;
- if (lcd_da_pin == PIN_NOT_SET) lcd_da_pin = PIN_NONE;
-
- if (lcd_charset < 0)
- lcd_charset = DEFAULT_LCD_CHARSET;
+ lcd_rw_pin = PIN_NONE;
+ if (lcd_bl_pin == PIN_NOT_SET)
+ lcd_bl_pin = PIN_NONE;
+ if (lcd_cl_pin == PIN_NOT_SET)
+ lcd_cl_pin = PIN_NONE;
+ if (lcd_da_pin == PIN_NOT_SET)
+ lcd_da_pin = PIN_NONE;
- if (lcd_charset == LCD_CHARSET_KS0074)
- lcd_char_conv = lcd_char_conv_ks0074;
- else
- lcd_char_conv = NULL;
+ if (lcd_charset < 0)
+ lcd_charset = DEFAULT_LCD_CHARSET;
- if (lcd_bl_pin != PIN_NONE)
- init_scan_timer();
+ if (lcd_charset == LCD_CHARSET_KS0074)
+ lcd_char_conv = lcd_char_conv_ks0074;
+ else
+ lcd_char_conv = NULL;
+
+ if (lcd_bl_pin != PIN_NONE)
+ init_scan_timer();
+
+ pin_to_bits(lcd_e_pin, lcd_bits[LCD_PORT_D][LCD_BIT_E],
+ lcd_bits[LCD_PORT_C][LCD_BIT_E]);
+ pin_to_bits(lcd_rs_pin, lcd_bits[LCD_PORT_D][LCD_BIT_RS],
+ lcd_bits[LCD_PORT_C][LCD_BIT_RS]);
+ pin_to_bits(lcd_rw_pin, lcd_bits[LCD_PORT_D][LCD_BIT_RW],
+ lcd_bits[LCD_PORT_C][LCD_BIT_RW]);
+ pin_to_bits(lcd_bl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_BL],
+ lcd_bits[LCD_PORT_C][LCD_BIT_BL]);
+ pin_to_bits(lcd_cl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_CL],
+ lcd_bits[LCD_PORT_C][LCD_BIT_CL]);
+ pin_to_bits(lcd_da_pin, lcd_bits[LCD_PORT_D][LCD_BIT_DA],
+ lcd_bits[LCD_PORT_C][LCD_BIT_DA]);
+
+ /* before this line, we must NOT send anything to the display.
+ * Since lcd_init_display() needs to write data, we have to
+ * enable mark the LCD initialized just before.
+ */
+ lcd_initialized = 1;
+ lcd_init_display();
- pin_to_bits(lcd_e_pin, lcd_bits[LCD_PORT_D][LCD_BIT_E], lcd_bits[LCD_PORT_C][LCD_BIT_E]);
- pin_to_bits(lcd_rs_pin, lcd_bits[LCD_PORT_D][LCD_BIT_RS], lcd_bits[LCD_PORT_C][LCD_BIT_RS]);
- pin_to_bits(lcd_rw_pin, lcd_bits[LCD_PORT_D][LCD_BIT_RW], lcd_bits[LCD_PORT_C][LCD_BIT_RW]);
- pin_to_bits(lcd_bl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_BL], lcd_bits[LCD_PORT_C][LCD_BIT_BL]);
- pin_to_bits(lcd_cl_pin, lcd_bits[LCD_PORT_D][LCD_BIT_CL], lcd_bits[LCD_PORT_C][LCD_BIT_CL]);
- pin_to_bits(lcd_da_pin, lcd_bits[LCD_PORT_D][LCD_BIT_DA], lcd_bits[LCD_PORT_C][LCD_BIT_DA]);
-
- /* before this line, we must NOT send anything to the display.
- * Since lcd_init_display() needs to write data, we have to
- * enable mark the LCD initialized just before.
- */
- lcd_initialized = 1;
- lcd_init_display();
-
- /* display a short message */
+ /* display a short message */
#ifdef CONFIG_PANEL_CHANGE_MESSAGE
#ifdef CONFIG_PANEL_BOOT_MESSAGE
- panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*" CONFIG_PANEL_BOOT_MESSAGE);
+ panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*" CONFIG_PANEL_BOOT_MESSAGE);
#endif
#else
- panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*Linux-" UTS_RELEASE "\nPanel-" PANEL_VERSION);
+ panel_lcd_print("\x1b[Lc\x1b[Lb\x1b[L*Linux-" UTS_RELEASE "\nPanel-"
+ PANEL_VERSION);
#endif
- lcd_addr_x = lcd_addr_y = 0;
- lcd_must_clear = 1; /* clear the display on the next device opening */
- lcd_gotoxy();
+ lcd_addr_x = lcd_addr_y = 0;
+ lcd_must_clear = 1; /* clear the display on the next device opening */
+ lcd_gotoxy();
}
-
/*
* These are the file operation function for user access to /dev/keypad
*/
-static ssize_t keypad_read(struct file * file,
- char * buf, size_t count, loff_t *ppos ) {
+static ssize_t keypad_read(struct file *file,
+ char *buf, size_t count, loff_t *ppos)
+{
- unsigned i = *ppos;
- char *tmp = buf;
+ unsigned i = *ppos;
+ char *tmp = buf;
- if (keypad_buflen == 0) {
- if (file->f_flags & O_NONBLOCK)
- return -EAGAIN;
+ if (keypad_buflen == 0) {
+ if (file->f_flags & O_NONBLOCK)
+ return -EAGAIN;
- //printk(KERN_ERR "keypad_read():1 len=%d", keypad_buflen);
- interruptible_sleep_on(&keypad_read_wait);
- //printk(KERN_ERR "keypad_read():2 len=%d", keypad_buflen);
- if (signal_pending(current))
- return -EINTR;
- }
+ interruptible_sleep_on(&keypad_read_wait);
+ if (signal_pending(current))
+ return -EINTR;
+ }
- //printk(KERN_ERR "keypad_read():3 len=%d", keypad_buflen);
- for( ; count-- > 0 && (keypad_buflen > 0); ++i, ++tmp, --keypad_buflen ) {
- put_user( keypad_buffer[keypad_start], tmp );
- keypad_start = (keypad_start + 1) % KEYPAD_BUFFER;
- }
- *ppos = i;
- //printk(KERN_ERR "keypad_read():4 len=%d", keypad_buflen);
+ for (; count-- > 0 && (keypad_buflen > 0); ++i, ++tmp, --keypad_buflen) {
+ put_user(keypad_buffer[keypad_start], tmp);
+ keypad_start = (keypad_start + 1) % KEYPAD_BUFFER;
+ }
+ *ppos = i;
- return( tmp - buf );
+ return tmp - buf;
}
+static int keypad_open(struct inode *inode, struct file *file)
+{
-static int keypad_open( struct inode *inode, struct file *file ) {
-
- if (keypad_open_cnt)
- return( -EBUSY ); /* open only once at a time */
+ if (keypad_open_cnt)
+ return -EBUSY; /* open only once at a time */
- if (file->f_mode & FMODE_WRITE) /* device is read-only */
- return ( -EPERM );
+ if (file->f_mode & FMODE_WRITE) /* device is read-only */
+ return -EPERM;
- keypad_buflen = 0; /* flush the buffer on opening */
- keypad_open_cnt++;
- return( 0 );
+ keypad_buflen = 0; /* flush the buffer on opening */
+ keypad_open_cnt++;
+ return 0;
}
-static int keypad_release( struct inode *inode, struct file *file ) {
- keypad_open_cnt--;
- return( 0 );
+static int keypad_release(struct inode *inode, struct file *file)
+{
+ keypad_open_cnt--;
+ return 0;
}
static struct file_operations keypad_fops = {
- read: keypad_read, /* read */
- open: keypad_open, /* open */
- release: keypad_release, /* close */
+ .read = keypad_read, /* read */
+ .open = keypad_open, /* open */
+ .release = keypad_release, /* close */
};
static struct miscdevice keypad_dev = {
- KEYPAD_MINOR,
- "keypad",
- &keypad_fops
+ KEYPAD_MINOR,
+ "keypad",
+ &keypad_fops
};
-static void keypad_send_key(char *string, int max_len) {
- //printk(KERN_ERR "keypad_send_key(%c,%d):1\n", *string,max_len);
- if (init_in_progress)
- return;
- //printk(KERN_ERR "keypad_send_key(%c,%d):2\n", *string,max_len);
-
- /* send the key to the device only if a process is attached to it. */
- if (keypad_open_cnt > 0) {
- //printk(KERN_ERR "keypad_send_key(%c,%d):3\n", *string,max_len);
- while (max_len-- && keypad_buflen < KEYPAD_BUFFER && *string) {
- keypad_buffer[(keypad_start + keypad_buflen++) % KEYPAD_BUFFER] = *string++;
+static void keypad_send_key(char *string, int max_len)
+{
+ if (init_in_progress)
+ return;
+
+ /* send the key to the device only if a process is attached to it. */
+ if (keypad_open_cnt > 0) {
+ while (max_len-- && keypad_buflen < KEYPAD_BUFFER && *string) {
+ keypad_buffer[(keypad_start + keypad_buflen++) %
+ KEYPAD_BUFFER] = *string++;
+ }
+ wake_up_interruptible(&keypad_read_wait);
}
- //printk(KERN_ERR "keypad_send_key(%d):4\n", *string,max_len);
- wake_up_interruptible(&keypad_read_wait);
- }
- //printk(KERN_ERR "keypad_send_key(%d):5\n", *string,max_len);
}
-
/* this function scans all the bits involving at least one logical signal, and puts the
* results in the bitfield "phys_read" (one bit per established contact), and sets
* "phys_read_prev" to "phys_read".
* as they previously were in their logical form (phys_prev). A signal which has just
* switched will have a 1 in (phys_read ^ phys_read_prev).
*/
-static void phys_scan_contacts(void) {
- int bit, bitval;
- char oldval;
- char bitmask;
- char gndmask;
-
- phys_prev = phys_curr;
- phys_read_prev = phys_read;
- phys_read = 0; /* flush all signals */
-
- oldval = r_dtr(pprt) | scan_mask_o; /* keep track of old value, with all outputs disabled */
- w_dtr(pprt, oldval & ~scan_mask_o); /* activate all keyboard outputs (active low) */
- bitmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i; /* will have a 1 for each bit set to gnd */
- w_dtr(pprt, oldval); /* disable all matrix signals */
-
- /* now that all outputs are cleared, the only active input bits are
- * directly connected to the ground
- */
- gndmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i; /* 1 for each grounded input */
-
- phys_read |= (pmask_t)gndmask << 40; /* grounded inputs are signals 40-44 */
-
- if (bitmask != gndmask) {
- /* since clearing the outputs changed some inputs, we know that some
- * input signals are currently tied to some outputs. So we'll scan them.
+static void phys_scan_contacts(void)
+{
+ int bit, bitval;
+ char oldval;
+ char bitmask;
+ char gndmask;
+
+ phys_prev = phys_curr;
+ phys_read_prev = phys_read;
+ phys_read = 0; /* flush all signals */
+
+ oldval = r_dtr(pprt) | scan_mask_o; /* keep track of old value, with all outputs disabled */
+ w_dtr(pprt, oldval & ~scan_mask_o); /* activate all keyboard outputs (active low) */
+ bitmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i; /* will have a 1 for each bit set to gnd */
+ w_dtr(pprt, oldval); /* disable all matrix signals */
+
+ /* now that all outputs are cleared, the only active input bits are
+ * directly connected to the ground
*/
- for (bit = 0; bit < 8; bit ++) {
- bitval = 1 << bit;
+ gndmask = PNL_PINPUT(r_str(pprt)) & scan_mask_i; /* 1 for each grounded input */
+
+ phys_read |= (pmask_t) gndmask << 40; /* grounded inputs are signals 40-44 */
- if (!(scan_mask_o & bitval)) /* skip unused bits */
- continue;
+ if (bitmask != gndmask) {
+ /* since clearing the outputs changed some inputs, we know that some
+ * input signals are currently tied to some outputs. So we'll scan them.
+ */
+ for (bit = 0; bit < 8; bit++) {
+ bitval = 1 << bit;
- w_dtr(pprt, oldval & ~bitval); /* enable this output */
- bitmask = PNL_PINPUT(r_str(pprt)) & ~gndmask;
- phys_read |= (pmask_t) bitmask << (5*bit);
+ if (!(scan_mask_o & bitval)) /* skip unused bits */
+ continue;
+
+ w_dtr(pprt, oldval & ~bitval); /* enable this output */
+ bitmask = PNL_PINPUT(r_str(pprt)) & ~gndmask;
+ phys_read |= (pmask_t) bitmask << (5 * bit);
+ }
+ w_dtr(pprt, oldval); /* disable all outputs */
}
- w_dtr(pprt, oldval); /* disable all outputs */
- }
- /* this is easy: use old bits when they are flapping, use new ones when stable */
- phys_curr = (phys_prev & (phys_read ^ phys_read_prev)) | (phys_read & ~(phys_read ^ phys_read_prev));
+ /* this is easy: use old bits when they are flapping, use new ones when stable */
+ phys_curr =
+ (phys_prev & (phys_read ^ phys_read_prev)) | (phys_read &
+ ~(phys_read ^
+ phys_read_prev));
}
-static void panel_process_inputs(void) {
- struct list_head *item;
- struct logical_input *input;
+static void panel_process_inputs(void)
+{
+ struct list_head *item;
+ struct logical_input *input;
#if 0
- printk(KERN_DEBUG "entering panel_process_inputs with pp=%016Lx & pc=%016Lx\n",
- phys_prev, phys_curr);
+ printk(KERN_DEBUG
+ "entering panel_process_inputs with pp=%016Lx & pc=%016Lx\n",
+ phys_prev, phys_curr);
#endif
- keypressed = 0;
- inputs_stable = 1;
- list_for_each(item, &logical_inputs) {
- input = list_entry(item, struct logical_input, list);
-
- switch (input->state) {
- case INPUT_ST_LOW:
- if ((phys_curr & input->mask) != input->value)
- break;
- /* if all needed ones were already set previously, this means that
- * this logical signal has been activated by the releasing of
- * another combined signal, so we don't want to match.
- * eg: AB -(release B)-> A -(release A)-> 0 : don't match A.
- */
- if ((phys_prev & input->mask) == input->value)
- break;
- input->rise_timer = 0;
- input->state = INPUT_ST_RISING;
- /* no break here, fall through */
- case INPUT_ST_RISING:
- if ((phys_curr & input->mask) != input->value) {
- input->state = INPUT_ST_LOW;
- break;
- }
- if (input->rise_timer < input->rise_time) {
- inputs_stable = 0;
- input->rise_timer++;
- break;
- }
- input->high_timer = 0;
- input->state = INPUT_ST_HIGH;
- /* no break here, fall through */
- case INPUT_ST_HIGH:
+ keypressed = 0;
+ inputs_stable = 1;
+ list_for_each(item, &logical_inputs) {
+ input = list_entry(item, struct logical_input, list);
+
+ switch (input->state) {
+ case INPUT_ST_LOW:
+ if ((phys_curr & input->mask) != input->value)
+ break;
+ /* if all needed ones were already set previously, this means that
+ * this logical signal has been activated by the releasing of
+ * another combined signal, so we don't want to match.
+ * eg: AB -(release B)-> A -(release A)-> 0 : don't match A.
+ */
+ if ((phys_prev & input->mask) == input->value)
+ break;
+ input->rise_timer = 0;
+ input->state = INPUT_ST_RISING;
+ /* no break here, fall through */
+ case INPUT_ST_RISING:
+ if ((phys_curr & input->mask) != input->value) {
+ input->state = INPUT_ST_LOW;
+ break;
+ }
+ if (input->rise_timer < input->rise_time) {
+ inputs_stable = 0;
+ input->rise_timer++;
+ break;
+ }
+ input->high_timer = 0;
+ input->state = INPUT_ST_HIGH;
+ /* no break here, fall through */
+ case INPUT_ST_HIGH:
#if 0
- /* FIXME:
- * this is an invalid test. It tries to catch transitions from single-key
- * to multiple-key, but doesn't take into account the contacts polarity.
- * The only solution to the problem is to parse keys from the most complex
- * to the simplest combinations, and mark them as 'caught' once a combination
- * matches, then unmatch it for all other ones.
- */
-
- /* try to catch dangerous transitions cases :
- * someone adds a bit, so this signal was a false
- * positive resulting from a transition. We should invalidate
- * the signal immediately and not call the release function.
- * eg: 0 -(press A)-> A -(press B)-> AB : don't match A's release.
- */
- if (((phys_prev & input->mask) == input->value)
- && ((phys_curr & input->mask) > input->value)) {
- input->state = INPUT_ST_LOW; /* invalidate */
- break;
- }
- //else
+ /* FIXME:
+ * this is an invalid test. It tries to catch transitions from single-key
+ * to multiple-key, but doesn't take into account the contacts polarity.
+ * The only solution to the problem is to parse keys from the most complex
+ * to the simplest combinations, and mark them as 'caught' once a combination
+ * matches, then unmatch it for all other ones.
+ */
+
+ /* try to catch dangerous transitions cases :
+ * someone adds a bit, so this signal was a false
+ * positive resulting from a transition. We should invalidate
+ * the signal immediately and not call the release function.
+ * eg: 0 -(press A)-> A -(press B)-> AB : don't match A's release.
+ */
+ if (((phys_prev & input->mask) == input->value)
+ && ((phys_curr & input->mask) > input->value)) {
+ input->state = INPUT_ST_LOW; /* invalidate */
+ break;
+ }
#endif
- if ((phys_curr & input->mask) == input->value) {
- if ((input->type == INPUT_TYPE_STD) && (input->high_timer == 0)) {
- input->high_timer++;
- if (input->u.std.press_fct != NULL)
- input->u.std.press_fct(input->u.std.press_data);
- }
- else if (input->type == INPUT_TYPE_KBD) {
- keypressed = 1; /* will turn on the light */
-
- if (input->high_timer == 0) {
- if (input->u.kbd.press_str[0])
- keypad_send_key(input->u.kbd.press_str, sizeof(input->u.kbd.press_str));
- }
-
- if (input->u.kbd.repeat_str[0]) {
- if (input->high_timer >= KEYPAD_REP_START) {
- input->high_timer -= KEYPAD_REP_DELAY;
- keypad_send_key(input->u.kbd.repeat_str, sizeof(input->u.kbd.repeat_str));
+ if ((phys_curr & input->mask) == input->value) {
+ if ((input->type == INPUT_TYPE_STD)
+ && (input->high_timer == 0)) {
+ input->high_timer++;
+ if (input->u.std.press_fct != NULL)
+ input->u.std.press_fct(input->u.
+ std.
+ press_data);
+ } else if (input->type == INPUT_TYPE_KBD) {
+ keypressed = 1; /* will turn on the light */
+
+ if (input->high_timer == 0) {
+ if (input->u.kbd.press_str[0])
+ keypad_send_key(input->
+ u.kbd.
+ press_str,
+ sizeof
+ (input->
+ u.kbd.
+ press_str));
+ }
+
+ if (input->u.kbd.repeat_str[0]) {
+ if (input->high_timer >=
+ KEYPAD_REP_START) {
+ input->high_timer -=
+ KEYPAD_REP_DELAY;
+ keypad_send_key(input->
+ u.kbd.
+ repeat_str,
+ sizeof
+ (input->
+ u.kbd.
+ repeat_str));
+ }
+ inputs_stable = 0; /* we will need to come back here soon */
+ }
+
+ if (input->high_timer < 255)
+ input->high_timer++;
+ }
+ break;
+ } else {
+ /* else signal falling down. Let's fall through. */
+ input->state = INPUT_ST_FALLING;
+ input->fall_timer = 0;
}
- inputs_stable = 0; /* we will need to come back here soon */
- }
-
- if (input->high_timer < 255) {
- input->high_timer++;
- }
- }
- break;
- }
- else {
- /* else signal falling down. Let's fall through. */
- input->state = INPUT_ST_FALLING;
- input->fall_timer = 0;
- }
- /* no break here, fall through */
- case INPUT_ST_FALLING:
+ /* no break here, fall through */
+ case INPUT_ST_FALLING:
#if 0
- /* FIXME !!! same comment as above */
- if (((phys_prev & input->mask) == input->value)
- && ((phys_curr & input->mask) > input->value)) {
- input->state = INPUT_ST_LOW; /* invalidate */
- break;
- }
- //else
+ /* FIXME !!! same comment as above */
+ if (((phys_prev & input->mask) == input->value)
+ && ((phys_curr & input->mask) > input->value)) {
+ input->state = INPUT_ST_LOW; /* invalidate */
+ break;
+ }
#endif
- if ((phys_curr & input->mask) == input->value) {
- if (input->type == INPUT_TYPE_KBD) {
- keypressed = 1; /* will turn on the light */
+ if ((phys_curr & input->mask) == input->value) {
+ if (input->type == INPUT_TYPE_KBD) {
+ keypressed = 1; /* will turn on the light */
+
+ if (input->u.kbd.repeat_str[0]) {
+ if (input->high_timer >= KEYPAD_REP_START)
+ input->high_timer -= KEYPAD_REP_DELAY;
+ keypad_send_key(input->u.kbd.repeat_str,
+ sizeof(input->u.kbd.repeat_str));
+ inputs_stable = 0; /* we will need to come back here soon */
+ }
+
+ if (input->high_timer < 255)
+ input->high_timer++;
+ }
+ input->state = INPUT_ST_HIGH;
+ break;
+ } else if (input->fall_timer >= input->fall_time) {
+ /* call release event */
+ if (input->type == INPUT_TYPE_STD) {
+ if (input->u.std.release_fct != NULL)
+ input->u.std.release_fct(input->u.std.release_data);
+
+ } else if (input->type == INPUT_TYPE_KBD) {
+ if (input->u.kbd.release_str[0])
+ keypad_send_key(input->u.kbd.release_str,
+ sizeof(input->u.kbd.release_str));
+ }
+
+ input->state = INPUT_ST_LOW;
+ break;
+ } else {
+ input->fall_timer++;
+ inputs_stable = 0;
+ break;
+ }
+ }
+ }
+}
- if (input->u.kbd.repeat_str[0]) {
- if (input->high_timer >= KEYPAD_REP_START)
- input->high_timer -= KEYPAD_REP_DELAY;
- keypad_send_key(input->u.kbd.repeat_str, sizeof(input->u.kbd.repeat_str));
- inputs_stable = 0; /* we will need to come back here soon */
- }
+static void panel_scan_timer(void)
+{
+ if ((keypad_enabled && keypad_initialized)
+ || (smartcard_enabled && smartcard_enabled)) {
- if (input->high_timer < 255) {
- input->high_timer++;
- }
- }
- input->state = INPUT_ST_HIGH;
- break;
- }
- else if (input->fall_timer >= input->fall_time) {
- /* call release event */
- if (input->type == INPUT_TYPE_STD) {
- if (input->u.std.release_fct != NULL)
- input->u.std.release_fct(input->u.std.release_data);
- }
- else if (input->type == INPUT_TYPE_KBD) {
- if (input->u.kbd.release_str[0])
- keypad_send_key(input->u.kbd.release_str, sizeof(input->u.kbd.release_str));
+ if (spin_trylock(&pprt_lock)) {
+ phys_scan_contacts();
+ spin_unlock(&pprt_lock); /* no need for the parport anymore */
}
- input->state = INPUT_ST_LOW;
- break;
- }
- else {
- input->fall_timer++;
- inputs_stable = 0;
- break;
- }
+ if (!inputs_stable || phys_curr != phys_prev)
+ panel_process_inputs();
}
- }
-}
-static void panel_scan_timer(void) {
- if ((keypad_enabled && keypad_initialized)
- || (smartcard_enabled && smartcard_enabled)) {
-
- if (spin_trylock(&pprt_lock)) {
- phys_scan_contacts();
- spin_unlock(&pprt_lock); /* no need for the parport anymore */
- }
-
- if (!inputs_stable || phys_curr != phys_prev) {
- panel_process_inputs();
- }
- }
-
- if (lcd_enabled && lcd_initialized) {
- if (keypressed) {
- if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
- lcd_backlight(1);
- light_tempo = FLASH_LIGHT_TEMPO;
- }
- else if (light_tempo > 0) {
- light_tempo--;
- if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
- lcd_backlight(0);
- }
- }
-
- mod_timer(&scan_timer, jiffies + INPUT_POLL_TIME);
+ if (lcd_enabled && lcd_initialized) {
+ if (keypressed) {
+ if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
+ lcd_backlight(1);
+ light_tempo = FLASH_LIGHT_TEMPO;
+ } else if (light_tempo > 0) {
+ light_tempo--;
+ if (light_tempo == 0 && ((lcd_flags & LCD_FLAG_L) == 0))
+ lcd_backlight(0);
+ }
+ }
+
+ mod_timer(&scan_timer, jiffies + INPUT_POLL_TIME);
}
/* send a high / low clock impulse of <duration> microseconds high and low */
-static void smartcard_send_clock(int duration) {
- int old;
+static void smartcard_send_clock(int duration)
+{
+ int old;
- w_dtr(pprt, (old = r_dtr(pprt)) | PNL_SC_CLK);
- udelay(duration);
- w_dtr(pprt, (old & ~PNL_SC_CLK));
- udelay(duration);
+ w_dtr(pprt, (old = r_dtr(pprt)) | PNL_SC_CLK);
+ udelay(duration);
+ w_dtr(pprt, (old & ~PNL_SC_CLK));
+ udelay(duration);
}
-static void smartcard_insert(int dummy) {
- int ofs;
+static void smartcard_insert(int dummy)
+{
+ int ofs;
- spin_lock(&pprt_lock);
- w_dtr(pprt, (r_dtr(pprt) & ~PNL_SC_BITS));
- w_ctr(pprt, (r_ctr(pprt) | PNL_SC_ENA));
+ spin_lock(&pprt_lock);
+ w_dtr(pprt, (r_dtr(pprt) & ~PNL_SC_BITS));
+ w_ctr(pprt, (r_ctr(pprt) | PNL_SC_ENA));
- udelay(30); /* ensure the rst is low at least 30 us */
+ udelay(30); /* ensure the rst is low at least 30 us */
- smartcard_send_clock(100); /* reset address counter */
+ smartcard_send_clock(100); /* reset address counter */
- w_dtr(pprt, r_dtr(pprt) | PNL_SC_RST);
- udelay(30); /* ensure the rst is high at least 30 us */
+ w_dtr(pprt, r_dtr(pprt) | PNL_SC_RST);
+ udelay(30); /* ensure the rst is high at least 30 us */
- for (ofs = 0; ofs < SMARTCARD_BYTES; ofs++) {
- int bit, byte;
- byte = 0;
- for (bit = 128; bit > 0; bit >>= 1) {
- if (!(r_str(pprt) & PNL_SC_IOR))
- byte |= bit;
- smartcard_send_clock(15); /* 15 us are enough for data */
+ for (ofs = 0; ofs < SMARTCARD_BYTES; ofs++) {
+ int bit, byte;
+ byte = 0;
+ for (bit = 128; bit > 0; bit >>= 1) {
+ if (!(r_str(pprt) & PNL_SC_IOR))
+ byte |= bit;
+ smartcard_send_clock(15); /* 15 us are enough for data */
+ }
+ smartcard_data[ofs] = byte;
}
- smartcard_data[ofs] = byte;
- }
- w_dtr(pprt, (r_dtr(pprt) & ~PNL_SC_BITS));
- w_ctr(pprt, (r_ctr(pprt) & ~PNL_SC_ENA));
+ w_dtr(pprt, (r_dtr(pprt) & ~PNL_SC_BITS));
+ w_ctr(pprt, (r_ctr(pprt) & ~PNL_SC_ENA));
- spin_unlock(&pprt_lock);
+ spin_unlock(&pprt_lock);
- printk(KERN_INFO "Panel: smart card inserted : %02x%02x%02x%02x%1x\n",
- smartcard_data[2], smartcard_data[3], smartcard_data[4],
- smartcard_data[5], smartcard_data[6] >> 4);
- keypad_send_key("CardIn\n", 7);
+ printk(KERN_INFO "Panel: smart card inserted : %02x%02x%02x%02x%1x\n",
+ smartcard_data[2], smartcard_data[3], smartcard_data[4],
+ smartcard_data[5], smartcard_data[6] >> 4);
+ keypad_send_key("CardIn\n", 7);
}
-static void smartcard_remove(int dummy) {
- printk(KERN_INFO "Panel: smart card removed : %02x%02x%02x%02x%1x\n",
- smartcard_data[2], smartcard_data[3], smartcard_data[4],
- smartcard_data[5], smartcard_data[6] >> 4);
- memset(smartcard_data, 0, sizeof(smartcard_data));
- keypad_send_key("CardOut\n", 8);
+static void smartcard_remove(int dummy)
+{
+ printk(KERN_INFO "Panel: smart card removed : %02x%02x%02x%02x%1x\n",
+ smartcard_data[2], smartcard_data[3], smartcard_data[4],
+ smartcard_data[5], smartcard_data[6] >> 4);
+ memset(smartcard_data, 0, sizeof(smartcard_data));
+ keypad_send_key("CardOut\n", 8);
}
/*
* These are the file operation function for user access to /dev/smartcard
*/
-static ssize_t smartcard_read(struct file * file,
- char * buf, size_t count, loff_t *ppos ) {
-
- unsigned i = *ppos;
- char *tmp = buf;
+static ssize_t smartcard_read(struct file *file,
+ char *buf, size_t count, loff_t *ppos)
+{
- for( ; count-- > 0 && (smartcard_ptr < 9); ++i, ++tmp, ++smartcard_ptr ) {
- if (smartcard_ptr & 1)
- put_user( '0' + (smartcard_data[2 + (smartcard_ptr >> 1)] & 0xF), tmp );
- else
- put_user( '0' + (smartcard_data[2 + (smartcard_ptr >> 1)] >> 4), tmp );
- }
- *ppos = i;
+ unsigned i = *ppos;
+ char *tmp = buf;
+
+ for (; count-- > 0 && (smartcard_ptr < 9); ++i, ++tmp, ++smartcard_ptr) {
+ if (smartcard_ptr & 1)
+ put_user('0' +
+ (smartcard_data[2 + (smartcard_ptr >> 1)] &
+ 0xF), tmp);
+ else
+ put_user('0' +
+ (smartcard_data[2 + (smartcard_ptr >> 1)] >>
+ 4), tmp);
+ }
+ *ppos = i;
- return( tmp - buf );
+ return tmp - buf;
}
+static int smartcard_open(struct inode *inode, struct file *file)
+{
-static int smartcard_open( struct inode *inode, struct file *file ) {
-
- if (smartcard_open_cnt)
- return( -EBUSY ); /* open only once at a time */
+ if (smartcard_open_cnt)
+ return -EBUSY; /* open only once at a time */
- if (file->f_mode & FMODE_WRITE) /* device is read-only */
- return ( -EPERM );
+ if (file->f_mode & FMODE_WRITE) /* device is read-only */
+ return -EPERM;
- smartcard_ptr = 0; /* flush the buffer on opening */
- smartcard_open_cnt++;
- return( 0 );
+ smartcard_ptr = 0; /* flush the buffer on opening */
+ smartcard_open_cnt++;
+ return 0;
}
-static int smartcard_release( struct inode *inode, struct file *file ) {
- smartcard_open_cnt--;
- return( 0 );
+static int smartcard_release(struct inode *inode, struct file *file)
+{
+ smartcard_open_cnt--;
+ return 0;
}
static struct file_operations smartcard_fops = {
- read: smartcard_read, /* read */
- open: smartcard_open, /* open */
- release: smartcard_release, /* close */
+ .read = smartcard_read, /* read */
+ .open = smartcard_open, /* open */
+ .release = smartcard_release, /* close */
};
static struct miscdevice smartcard_dev = {
- SMARTCARD_MINOR,
- "smartcard",
- &smartcard_fops
+ SMARTCARD_MINOR,
+ "smartcard",
+ &smartcard_fops
};
-static void init_scan_timer(void) {
- if (scan_timer.function != NULL)
- return; /* already started */
-
- init_timer(&scan_timer);
- scan_timer.expires = jiffies + INPUT_POLL_TIME;
- scan_timer.data = 0;
- scan_timer.function = (void *)&panel_scan_timer;
- add_timer(&scan_timer);
+static void init_scan_timer(void)
+{
+ if (scan_timer.function != NULL)
+ return; /* already started */
+
+ init_timer(&scan_timer);
+ scan_timer.expires = jiffies + INPUT_POLL_TIME;
+ scan_timer.data = 0;
+ scan_timer.function = (void *)&panel_scan_timer;
+ add_timer(&scan_timer);
}
/* converts a name of the form "({BbAaPpSsEe}{01234567-})*" to a series of bits.
* to out and in bits respectively.
* returns 1 if ok, 0 if error (in which case, nothing is written).
*/
-static int input_name2mask(char *name, pmask_t *mask, pmask_t *value, char *imask, char *omask) {
- static char sigtab[10]="EeSsPpAaBb";
- char im, om;
- pmask_t m, v;
-
- om = im = m = v = 0ULL;
- while (*name) {
- int in, out, bit, neg;
- for (in = 0; (in < sizeof(sigtab)) && (sigtab[in] != *name); in++);
- if (in >= sizeof(sigtab))
- return 0; /* input name not found */
- neg = (in & 1); /* odd (lower) names are negated */
- in >>= 1;
- im |= (1 << in);
-
- name++;
- if (isdigit(*name)) {
- out = *name - '0';
- om |= (1 << out);
+static int input_name2mask(char *name, pmask_t *mask, pmask_t *value,
+ char *imask, char *omask)
+{
+ static char sigtab[10] = "EeSsPpAaBb";
+ char im, om;
+ pmask_t m, v;
+
+ om = im = m = v = 0ULL;
+ while (*name) {
+ int in, out, bit, neg;
+ for (in = 0; (in < sizeof(sigtab)) && (sigtab[in] != *name); in++)
+ ;
+ if (in >= sizeof(sigtab))
+ return 0; /* input name not found */
+ neg = (in & 1); /* odd (lower) names are negated */
+ in >>= 1;
+ im |= (1 << in);
+
+ name++;
+ if (isdigit(*name)) {
+ out = *name - '0';
+ om |= (1 << out);
+ } else if (*name == '-')
+ out = 8;
+ else
+ return 0; /* unknown bit name */
+
+ bit = (out * 5) + in;
+
+ m |= 1ULL << bit;
+ if (!neg)
+ v |= 1ULL << bit;
+ name++;
}
- else if (*name == '-')
- out = 8;
- else
- return 0; /* unknown bit name */
-
- bit = (out * 5) + in;
-
- m |= 1ULL << bit;
- if (!neg)
- v |= 1ULL << bit;
- name++;
- }
- *mask = m;
- *value = v;
- if (imask)
- *imask |= im;
- if (omask)
- *omask |= om;
- return 1;
+ *mask = m;
+ *value = v;
+ if (imask)
+ *imask |= im;
+ if (omask)
+ *omask |= om;
+ return 1;
}
/* tries to bind a key to the signal name <name>. The key will send the
* strings <press>, <repeat>, <release> for these respective events.
* Returns the pointer to the new key if ok, NULL if the key could not be bound.
*/
-static struct logical_input *panel_bind_key(char *name, char *press, char *repeat, char *release) {
- struct logical_input *key;
-
- key = (struct logical_input*)kmalloc(sizeof(struct logical_input), GFP_KERNEL);
- if (!key) {
- printk(KERN_ERR "panel: not enough memory\n");
- return NULL;
- }
- memset(key, 0, sizeof(struct logical_input));
- if (!input_name2mask(name, &key->mask, &key->value, &scan_mask_i, &scan_mask_o))
- return NULL;
- key->type = INPUT_TYPE_KBD;
- key->state = INPUT_ST_LOW;
- key->rise_time = 1;
- key->fall_time = 1;
+static struct logical_input *panel_bind_key(char *name, char *press,
+ char *repeat, char *release)
+{
+ struct logical_input *key;
+
+ key = kmalloc(sizeof(struct logical_input), GFP_KERNEL);
+ if (!key) {
+ printk(KERN_ERR "panel: not enough memory\n");
+ return NULL;
+ }
+ memset(key, 0, sizeof(struct logical_input));
+ if (!input_name2mask(name, &key->mask, &key->value, &scan_mask_i,
+ &scan_mask_o))
+ return NULL;
+
+ key->type = INPUT_TYPE_KBD;
+ key->state = INPUT_ST_LOW;
+ key->rise_time = 1;
+ key->fall_time = 1;
#if 0
- printk(KERN_DEBUG "bind: <%s> : m=%016Lx v=%016Lx\n", name, key->mask, key->value);
+ printk(KERN_DEBUG "bind: <%s> : m=%016Lx v=%016Lx\n", name, key->mask,
+ key->value);
#endif
- strncpy(key->u.kbd.press_str, press, sizeof(key->u.kbd.press_str));
- strncpy(key->u.kbd.repeat_str, repeat, sizeof(key->u.kbd.repeat_str));
- strncpy(key->u.kbd.release_str, release, sizeof(key->u.kbd.release_str));
- list_add(&key->list, &logical_inputs);
- return key;
+ strncpy(key->u.kbd.press_str, press, sizeof(key->u.kbd.press_str));
+ strncpy(key->u.kbd.repeat_str, repeat, sizeof(key->u.kbd.repeat_str));
+ strncpy(key->u.kbd.release_str, release,
+ sizeof(key->u.kbd.release_str));
+ list_add(&key->list, &logical_inputs);
+ return key;
}
/* tries to bind a callback function to the signal name <name>. The function
* Returns the pointer to the new signal if ok, NULL if the signal could not be bound.
*/
static struct logical_input *panel_bind_callback(char *name,
- void (*press_fct)(int), int press_data,
- void (*release_fct)(int), int release_data) {
- struct logical_input *callback;
-
- callback = (struct logical_input*)kmalloc(sizeof(struct logical_input), GFP_KERNEL);
- if (!callback) {
- printk(KERN_ERR "panel: not enough memory\n");
- return NULL;
- }
- memset(callback, 0, sizeof(struct logical_input));
- if (!input_name2mask(name, &callback->mask, &callback->value, &scan_mask_i, &scan_mask_o))
- return NULL;
- callback->type = INPUT_TYPE_STD;
- callback->state = INPUT_ST_LOW;
- callback->rise_time = 1;
- callback->fall_time = 1;
- callback->u.std.press_fct = press_fct;
- callback->u.std.press_data = press_data;
- callback->u.std.release_fct = release_fct;
- callback->u.std.release_data = release_data;
- list_add(&callback->list, &logical_inputs);
- return callback;
+ void (*press_fct) (int),
+ int press_data,
+ void (*release_fct) (int),
+ int release_data)
+{
+ struct logical_input *callback;
+
+ callback = kmalloc(sizeof(struct logical_input), GFP_KERNEL);
+ if (!callback) {
+ printk(KERN_ERR "panel: not enough memory\n");
+ return NULL;
+ }
+ memset(callback, 0, sizeof(struct logical_input));
+ if (!input_name2mask(name, &callback->mask, &callback->value,
+ &scan_mask_i, &scan_mask_o))
+ return NULL;
+
+ callback->type = INPUT_TYPE_STD;
+ callback->state = INPUT_ST_LOW;
+ callback->rise_time = 1;
+ callback->fall_time = 1;
+ callback->u.std.press_fct = press_fct;
+ callback->u.std.press_data = press_data;
+ callback->u.std.release_fct = release_fct;
+ callback->u.std.release_data = release_data;
+ list_add(&callback->list, &logical_inputs);
+ return callback;
}
-static void keypad_init(void) {
- int keynum;
- init_waitqueue_head(&keypad_read_wait);
- keypad_buflen = 0; /* flushes any eventual noisy keystroke */
+static void keypad_init(void)
+{
+ int keynum;
+ init_waitqueue_head(&keypad_read_wait);
+ keypad_buflen = 0; /* flushes any eventual noisy keystroke */
- /* Let's create all known keys */
+ /* Let's create all known keys */
- for (keynum = 0; keypad_profile[keynum][0][0]; keynum++) {
- panel_bind_key(keypad_profile[keynum][0],
- keypad_profile[keynum][1],
- keypad_profile[keynum][2],
- keypad_profile[keynum][3]);
- }
+ for (keynum = 0; keypad_profile[keynum][0][0]; keynum++) {
+ panel_bind_key(keypad_profile[keynum][0],
+ keypad_profile[keynum][1],
+ keypad_profile[keynum][2],
+ keypad_profile[keynum][3]);
+ }
- init_scan_timer();
- keypad_initialized = 1;
+ init_scan_timer();
+ keypad_initialized = 1;
}
+static void smartcard_init(void)
+{
+ init_waitqueue_head(&smartcard_read_wait);
-static void smartcard_init(void) {
- init_waitqueue_head(&smartcard_read_wait);
-
- panel_bind_callback(SMARTCARD_LOGICAL_DETECTOR, &smartcard_insert, 0, &smartcard_remove, 0);
- init_scan_timer();
- smartcard_enabled = 1;
+ panel_bind_callback(SMARTCARD_LOGICAL_DETECTOR, &smartcard_insert, 0,
+ &smartcard_remove, 0);
+ init_scan_timer();
+ smartcard_enabled = 1;
}
-
/**************************************************/
/* device initialization */
/**************************************************/
__initfunc(void panel_setup(char *str, int *ints))
#endif
{
- int dummy;
- int *where;
- int helpdisplayed = 0;
-
- if (!str)
- return 0;
-
- while (*str) {
- where = NULL;
+ int dummy;
+ int *where;
+ int helpdisplayed = 0;
+
+ if (!str)
+ return 0;
+
+ while (*str) {
+ where = NULL;
+
+ /* let's parse each of the command line parameters of the following form :
+ panel=[parport:x],[lcd_height:x],[lcd_width:x],[lcd_bwidth:x],[lcd_hwidth:x]
+ */
+ if (!strncmp(str, "parport:", 8)) {
+ str += 8;
+ where = &parport;
+ } else if (!strncmp(str, "disabled", 8)) {
+ return 0;
+ } else if (!strncmp(str, "lcd_height:", 11)) {
+ str += 11;
+ where = &lcd_height;
+ } else if (!strncmp(str, "lcd_width:", 10)) {
+ str += 10;
+ where = &lcd_width;
+ } else if (!strncmp(str, "lcd_bwidth:", 11)) {
+ str += 11;
+ where = &lcd_bwidth;
+ } else if (!strncmp(str, "lcd_hwidth:", 11)) {
+ str += 11;
+ where = &lcd_hwidth;
+ } else if (!strncmp(str, "lcd_enabled:", 12)) {
+ str += 12;
+ where = &lcd_enabled;
+ } else if (!strncmp(str, "keypad_enabled:", 15)) {
+ str += 15;
+ where = &keypad_enabled;
+ } else if (!strncmp(str, "smartcard_enabled:", 18)) {
+ str += 18;
+ where = &smartcard_enabled;
+ } else if (!strncmp(str, "profile:", 8)) {
+ str += 8;
+ where = &profile;
+ } else if (!helpdisplayed) {
+ helpdisplayed = 1;
+ printk(KERN_ERR "Panel version " PANEL_VERSION
+ ": invalid argument. Known arguments are :\n"
+ " parport:, lcd_{height,width,bwidth,enabled}:, keypad_enabled:\n");
+ }
- /* let's parse each of the command line parameters of the following form :
- panel=[parport:x],[lcd_height:x],[lcd_width:x],[lcd_bwidth:x],[lcd_hwidth:x]
- */
- if (!strncmp(str, "parport:", 8)) {
- str += 8;
- where = &parport;
- }
- else if (!strncmp(str, "disabled", 8)) {
- return 0;
- }
- else if (!strncmp(str, "lcd_height:", 11)) {
- str += 11;
- where = &lcd_height;
- }
- else if (!strncmp(str, "lcd_width:", 10)) {
- str += 10;
- where = &lcd_width;
- }
- else if (!strncmp(str, "lcd_bwidth:", 11)) {
- str += 11;
- where = &lcd_bwidth;
- }
- else if (!strncmp(str, "lcd_hwidth:", 11)) {
- str += 11;
- where = &lcd_hwidth;
- }
- else if (!strncmp(str, "lcd_enabled:", 12)) {
- str += 12;
- where = &lcd_enabled;
- }
- else if (!strncmp(str, "keypad_enabled:", 15)) {
- str += 15;
- where = &keypad_enabled;
- }
- else if (!strncmp(str, "smartcard_enabled:", 18)) {
- str += 18;
- where = &smartcard_enabled;
- }
- else if (!strncmp(str, "profile:", 8)) {
- str += 8;
- where = &profile;
- }
- else if (!helpdisplayed) {
- helpdisplayed = 1;
- printk(KERN_ERR "Panel version " PANEL_VERSION ": invalid argument. Known arguments are :\n"
- " parport:, lcd_{height,width,bwidth,enabled}:, keypad_enabled:\n");
- }
+ /* see if we need to read a number */
+ if (where != NULL) {
+ dummy = 0;
+ while (isdigit(*str)) {
+ dummy = (dummy * 10) + (*str - '0');
+ str++;
+ }
+ *where = dummy;
+ }
- /* see if we need to read a number */
- if (where != NULL) {
- dummy = 0;
- while (isdigit(*str)) {
- dummy = (dummy*10) + (*str - '0');
- str++;
- }
- *where = dummy;
+ /* look for next arg */
+ while (*str && (*str != ','))
+ str++;
+ while (*str == ',')
+ str++;
}
-
- /* look for next arg */
- while (*str && (*str != ','))
- str++;
- while (*str == ',')
- str++;
- }
- return 1;
+ return 1;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-__setup("panel=", panel_setup );
+__setup("panel=", panel_setup);
#else
-__setup("panel", panel_setup );
+__setup("panel", panel_setup);
#endif
#endif /* !MODULE */
-static int panel_notify_sys(struct notifier_block *this, unsigned long code, void *unused) {
- if (lcd_enabled && lcd_initialized) {
- switch(code) {
- case SYS_DOWN:
- panel_lcd_print("\x0cReloading\nSystem...\x1b[Lc\x1b[Lb\x1b[L+");
- break;
- case SYS_HALT:
- panel_lcd_print("\x0cSystem Halted.\x1b[Lc\x1b[Lb\x1b[L+");
- break;
- case SYS_POWER_OFF:
- panel_lcd_print("\x0cPower off.\x1b[Lc\x1b[Lb\x1b[L+");
- break;
- default:
- break;
+static int panel_notify_sys(struct notifier_block *this, unsigned long code,
+ void *unused)
+{
+ if (lcd_enabled && lcd_initialized) {
+ switch (code) {
+ case SYS_DOWN:
+ panel_lcd_print
+ ("\x0cReloading\nSystem...\x1b[Lc\x1b[Lb\x1b[L+");
+ break;
+ case SYS_HALT:
+ panel_lcd_print
+ ("\x0cSystem Halted.\x1b[Lc\x1b[Lb\x1b[L+");
+ break;
+ case SYS_POWER_OFF:
+ panel_lcd_print("\x0cPower off.\x1b[Lc\x1b[Lb\x1b[L+");
+ break;
+ default:
+ break;
+ }
}
- }
- return NOTIFY_DONE;
+ return NOTIFY_DONE;
}
static struct notifier_block panel_notifier = {
0
};
-
-static void panel_attach (struct parport *port)
+static void panel_attach(struct parport *port)
{
- if (port->number != parport)
- return;
-
- if (pprt) {
- printk(KERN_ERR "panel_attach(): port->number=%d parport=%d, already registered !\n", port->number, parport);
- return;
- }
-
- pprt = parport_register_device(port, "panel",
- NULL, NULL, /* pf, kf */
- NULL,
- /*PARPORT_DEV_EXCL*/
- 0,
- (void *)&pprt);
-
- if (parport_claim(pprt)) {
- printk(KERN_ERR "Panel: could not claim access to parport%d. Aborting.\n", parport);
- //parport_unregister_device(pprt);
- //parport_unregister_driver(&panel_driver);
- //return -EIO;
- return;
- }
-
- /* turns IRQ off */
- // port->ops->disable_irq(port);
-
- /* must init LCD first, just in case an IRQ from the keypad is generated at keypad init */
- if (lcd_enabled) {
- lcd_init();
- misc_register( &lcd_dev );
- }
-
- if (keypad_enabled) {
- keypad_init();
- misc_register( &keypad_dev );
- }
-
- if (smartcard_enabled) {
- smartcard_init();
- misc_register( &smartcard_dev );
- }
+ if (port->number != parport)
+ return;
+
+ if (pprt) {
+ printk(KERN_ERR
+ "panel_attach(): port->number=%d parport=%d, already registered !\n",
+ port->number, parport);
+ return;
+ }
+
+ pprt = parport_register_device(port, "panel", NULL, NULL, /* pf, kf */
+ NULL,
+ /*PARPORT_DEV_EXCL */
+ 0, (void *)&pprt);
+
+ if (parport_claim(pprt)) {
+ printk(KERN_ERR
+ "Panel: could not claim access to parport%d. Aborting.\n",
+ parport);
+ return;
+ }
+
+ /* must init LCD first, just in case an IRQ from the keypad is generated at keypad init */
+ if (lcd_enabled) {
+ lcd_init();
+ misc_register(&lcd_dev);
+ }
+
+ if (keypad_enabled) {
+ keypad_init();
+ misc_register(&keypad_dev);
+ }
+
+ if (smartcard_enabled) {
+ smartcard_init();
+ misc_register(&smartcard_dev);
+ }
}
-static void panel_detach (struct parport *port)
+static void panel_detach(struct parport *port)
{
- if (port->number != parport)
- return;
-
- if (!pprt) {
- printk(KERN_ERR "panel_detach(): port->number=%d parport=%d, nothing to unregister.\n",
- port->number, parport);
- return;
- }
-
- if (smartcard_enabled && smartcard_initialized) {
- misc_deregister( &smartcard_dev );
- }
-
- if (keypad_enabled && keypad_initialized) {
- misc_deregister( &keypad_dev );
- }
-
- if (lcd_enabled && lcd_initialized) {
- misc_deregister( &lcd_dev );
- }
-
- parport_release(pprt);
- parport_unregister_device(pprt);
- pprt = NULL;
+ if (port->number != parport)
+ return;
+
+ if (!pprt) {
+ printk(KERN_ERR
+ "panel_detach(): port->number=%d parport=%d, nothing to unregister.\n",
+ port->number, parport);
+ return;
+ }
+
+ if (smartcard_enabled && smartcard_initialized)
+ misc_deregister(&smartcard_dev);
+
+ if (keypad_enabled && keypad_initialized)
+ misc_deregister(&keypad_dev);
+
+ if (lcd_enabled && lcd_initialized)
+ misc_deregister(&lcd_dev);
+
+ parport_release(pprt);
+ parport_unregister_device(pprt);
+ pprt = NULL;
}
static struct parport_driver panel_driver = {
- .name = "panel",
- .attach = panel_attach,
- .detach = panel_detach,
+ .name = "panel",
+ .attach = panel_attach,
+ .detach = panel_detach,
};
/* init function */
-int panel_init (void) {
- /* for backwards compatibility */
- if (keypad_type < 0)
- keypad_type = keypad_enabled;
-
- if (lcd_type < 0)
- lcd_type = lcd_enabled;
-
- if (parport < 0)
- parport = DEFAULT_PARPORT;
-
- /* take care of an eventual profile */
- switch (profile) {
- case PANEL_PROFILE_CUSTOM: /* custom profile */
- if (keypad_type < 0) keypad_type = DEFAULT_KEYPAD;
- if (smartcard_enabled < 0) smartcard_enabled = DEFAULT_SMARTCARD;
- if (lcd_type < 0) lcd_type = DEFAULT_LCD;
- break;
- case PANEL_PROFILE_OLD: /* 8 bits, 2*16, old keypad */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_OLD;
- if (smartcard_enabled < 0) smartcard_enabled = 0;
- if (lcd_type < 0) lcd_type = LCD_TYPE_OLD;
- if (lcd_width < 0) lcd_width = 16;
- if (lcd_hwidth < 0) lcd_hwidth = 16;
- break;
- case PANEL_PROFILE_NEW: /* serial, 2*16, new keypad */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_NEW;
- if (smartcard_enabled < 0) smartcard_enabled = 1;
- if (lcd_type < 0) lcd_type = LCD_TYPE_KS0074;
- break;
- case PANEL_PROFILE_HANTRONIX: /* 8 bits, 2*16 hantronix-like, no keypad */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_NONE;
- if (smartcard_enabled < 0) smartcard_enabled = 0;
- if (lcd_type < 0) lcd_type = LCD_TYPE_HANTRONIX;
- break;
- case PANEL_PROFILE_NEXCOM: /* generic 8 bits, 2*16, nexcom keypad, eg. Nexcom. */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_NEXCOM;
- if (smartcard_enabled < 0) smartcard_enabled = 0;
- if (lcd_type < 0) lcd_type = LCD_TYPE_NEXCOM;
- break;
- case PANEL_PROFILE_LARGE: /* 8 bits, 2*40, old keypad */
- if (keypad_type < 0) keypad_type = KEYPAD_TYPE_OLD;
- if (smartcard_enabled < 0) smartcard_enabled = 0;
- if (lcd_type < 0) lcd_type = LCD_TYPE_OLD;
- break;
- }
-
- lcd_enabled = (lcd_type > 0);
- keypad_enabled = (keypad_type > 0);
-
- switch (keypad_type) {
- case KEYPAD_TYPE_OLD:
- keypad_profile = old_keypad_profile;
- break;
- case KEYPAD_TYPE_NEW:
- keypad_profile = new_keypad_profile;
- break;
- case KEYPAD_TYPE_NEXCOM:
- keypad_profile = nexcom_keypad_profile;
- break;
- default:
- keypad_profile = NULL;
- break;
- }
-
- /* tells various subsystems about the fact that we are initializing */
- init_in_progress = 1;
-
- if (parport_register_driver(&panel_driver)) {
- printk(KERN_ERR "Panel: could not register with parport. Aborting.\n");
- return -EIO;
- }
-
- // The parport can be asynchronously registered later.
- //if (pprt == NULL) {
- // printk(KERN_ERR "Panel: could not register parport%d. Aborting.\n", parport);
- // parport_unregister_driver(&panel_driver);
- // return -ENODEV; /* port not found */
- //}
-
-
- if (!lcd_enabled && !keypad_enabled && !smartcard_enabled) { /* no device enabled, let's release the parport */
- if (pprt) {
- parport_release(pprt);
- parport_unregister_device(pprt);
+int panel_init(void)
+{
+ /* for backwards compatibility */
+ if (keypad_type < 0)
+ keypad_type = keypad_enabled;
+
+ if (lcd_type < 0)
+ lcd_type = lcd_enabled;
+
+ if (parport < 0)
+ parport = DEFAULT_PARPORT;
+
+ /* take care of an eventual profile */
+ switch (profile) {
+ case PANEL_PROFILE_CUSTOM: /* custom profile */
+ if (keypad_type < 0)
+ keypad_type = DEFAULT_KEYPAD;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = DEFAULT_SMARTCARD;
+ if (lcd_type < 0)
+ lcd_type = DEFAULT_LCD;
+ break;
+ case PANEL_PROFILE_OLD: /* 8 bits, 2*16, old keypad */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_OLD;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 0;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_OLD;
+ if (lcd_width < 0)
+ lcd_width = 16;
+ if (lcd_hwidth < 0)
+ lcd_hwidth = 16;
+ break;
+ case PANEL_PROFILE_NEW: /* serial, 2*16, new keypad */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_NEW;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 1;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_KS0074;
+ break;
+ case PANEL_PROFILE_HANTRONIX: /* 8 bits, 2*16 hantronix-like, no keypad */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_NONE;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 0;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_HANTRONIX;
+ break;
+ case PANEL_PROFILE_NEXCOM: /* generic 8 bits, 2*16, nexcom keypad, eg. Nexcom. */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_NEXCOM;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 0;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_NEXCOM;
+ break;
+ case PANEL_PROFILE_LARGE: /* 8 bits, 2*40, old keypad */
+ if (keypad_type < 0)
+ keypad_type = KEYPAD_TYPE_OLD;
+ if (smartcard_enabled < 0)
+ smartcard_enabled = 0;
+ if (lcd_type < 0)
+ lcd_type = LCD_TYPE_OLD;
+ break;
+ }
+
+ lcd_enabled = (lcd_type > 0);
+ keypad_enabled = (keypad_type > 0);
+
+ switch (keypad_type) {
+ case KEYPAD_TYPE_OLD:
+ keypad_profile = old_keypad_profile;
+ break;
+ case KEYPAD_TYPE_NEW:
+ keypad_profile = new_keypad_profile;
+ break;
+ case KEYPAD_TYPE_NEXCOM:
+ keypad_profile = nexcom_keypad_profile;
+ break;
+ default:
+ keypad_profile = NULL;
+ break;
+ }
+
+ /* tells various subsystems about the fact that we are initializing */
+ init_in_progress = 1;
+
+ if (parport_register_driver(&panel_driver)) {
+ printk(KERN_ERR
+ "Panel: could not register with parport. Aborting.\n");
+ return -EIO;
+ }
+
+ if (!lcd_enabled && !keypad_enabled && !smartcard_enabled) { /* no device enabled, let's release the parport */
+ if (pprt) {
+ parport_release(pprt);
+ parport_unregister_device(pprt);
+ }
+ parport_unregister_driver(&panel_driver);
+ printk(KERN_ERR "Panel driver version " PANEL_VERSION
+ " disabled.\n");
+ return -ENODEV;
}
- parport_unregister_driver(&panel_driver);
- printk(KERN_ERR "Panel driver version " PANEL_VERSION " disabled.\n");
- return -ENODEV;
- }
-
- register_reboot_notifier(&panel_notifier);
-
- if (pprt)
- printk(KERN_INFO "Panel driver version " PANEL_VERSION " registered on parport%d (io=0x%lx).\n",
- parport, pprt->port->base);
- else
- printk(KERN_INFO "Panel driver version " PANEL_VERSION " not yet registered\n");
- /* tells various subsystems about the fact that initialization is finished */
- init_in_progress = 0;
- return 0;
-}
+ register_reboot_notifier(&panel_notifier);
+
+ if (pprt)
+ printk(KERN_INFO "Panel driver version " PANEL_VERSION
+ " registered on parport%d (io=0x%lx).\n", parport,
+ pprt->port->base);
+ else
+ printk(KERN_INFO "Panel driver version " PANEL_VERSION
+ " not yet registered\n");
+ /* tells various subsystems about the fact that initialization is finished */
+ init_in_progress = 0;
+ return 0;
+}
#if defined(MODULE) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0))
-INIT_FUNC (void) {
- return panel_init();
+INIT_FUNC(void)
+{
+ return panel_init();
}
-CLEANUP_FUNC (void) {
- unregister_reboot_notifier(&panel_notifier);
+CLEANUP_FUNC(void)
+{
+ unregister_reboot_notifier(&panel_notifier);
- if (scan_timer.function != NULL) {
- del_timer(&scan_timer);
- }
+ if (scan_timer.function != NULL)
+ del_timer(&scan_timer);
- if (keypad_enabled) {
- misc_deregister( &keypad_dev );
- }
+ if (keypad_enabled)
+ misc_deregister(&keypad_dev);
- if (smartcard_enabled) {
- misc_deregister( &smartcard_dev );
- }
+ if (smartcard_enabled)
+ misc_deregister(&smartcard_dev);
- if (lcd_enabled) {
- panel_lcd_print("\x0cLCD driver " PANEL_VERSION "\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
- misc_deregister( &lcd_dev );
- }
+ if (lcd_enabled) {
+ panel_lcd_print("\x0cLCD driver " PANEL_VERSION
+ "\nunloaded.\x1b[Lc\x1b[Lb\x1b[L-");
+ misc_deregister(&lcd_dev);
+ }
- /* TODO: free all input signals */
+ /* TODO: free all input signals */
- parport_release(pprt);
- parport_unregister_device(pprt);
- parport_unregister_driver(&panel_driver);
+ parport_release(pprt);
+ parport_unregister_device(pprt);
+ parport_unregister_driver(&panel_driver);
}
#endif
* tab-width: 8
* End:
*/
-
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff