* visornic - network interface
* visorhba - scsi disk adapter
-* visorhid - keyboard and mouse
+* visorinput - keyboard and mouse
These drivers conform to the standard Linux bus/device model described
within Documentation/driver-model/, and utilize a driver named visorbus to
* Because the s-Par back-end provides a standard EFI framebuffer to each
guest, the already-existing efifb Linux driver is used to provide guest
video access. Thus, the only s-Par-unique support that is necessary to
- provide a guest graphics console are for keyboard and mouse (via visorhid).
+ provide a guest graphics console are for keyboard and mouse (via visorinput).
2. Driver Descriptions
alias visorbus:8cd5994d-c58e-11da-95a9-00e08161165f visornic
-2.4. visorhid
--------------
+2.4. visorinput
+---------------
-The visorhid driver registers with visorbus as the function driver to
+The visorinput driver registers with visorbus as the function driver to
handle human input devices, specified using the
SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID and SPAR_MOUSE_CHANNEL_PROTOCOL_UUID
-types in the visorbus_register_visor_driver() call. visorhid uses
+types in the visorbus_register_visor_driver() call. visorinput uses
input_register_device() to expose devices of class input
(e.g., /sys/class/input/) for virtual keyboard and virtual mouse devices.
A s-Par virtual keyboard device maps 1-to-1 with a Linux input device
By registering as input class devices, modern versions of X will
automatically find and properly use s-Par virtual keyboard and mouse devices.
As the s-Par back-end reports keyboard and mouse activity via events on the
-virtual device channel, the visorhid driver delivers the activity to the
+virtual device channel, the visorinput driver delivers the activity to the
Linux environment by calling input_report_key() and input_report_abs().
You can interact with the guest console using the usyscon Partition Desktop
PartitionDesktop.msi, you will be able to launch a console for your guest
Linux environment by clicking the console icon in the s-Par web UI.
-When compiled as a module, visorhid can be autoloaded by visorbus in
+When compiled as a module, visorinput can be autoloaded by visorbus in
standard udev/systemd environments, as it includes the modules.alias
definition:
i.e.:
- alias visorbus:c73416d0-b0b8-44af-b304-9d2ae99f1b3d visorhid
- alias visorbus:addf07d4-94a9-46e2-81c3-61abcdbdbd87 visorhid
+ alias visorbus:c73416d0-b0b8-44af-b304-9d2ae99f1b3d visorinput
+ alias visorbus:addf07d4-94a9-46e2-81c3-61abcdbdbd87 visorinput
3. Minimum Required Driver Set
configurations where the Linux guest is provided with an SR-IOV NIC
for example, visornic is not technically required.
-visorhid is only required for a Linux guest running under s-Par if you
+visorinput is only required for a Linux guest running under s-Par if you
require graphics-mode access to your guest console.
source "drivers/staging/unisys/visorbus/Kconfig"
source "drivers/staging/unisys/visornic/Kconfig"
-source "drivers/staging/unisys/visorhid/Kconfig"
+source "drivers/staging/unisys/visorinput/Kconfig"
source "drivers/staging/unisys/visorhba/Kconfig"
endif # UNISYSSPAR
#
obj-$(CONFIG_UNISYS_VISORBUS) += visorbus/
obj-$(CONFIG_UNISYS_VISORNIC) += visornic/
-obj-$(CONFIG_UNISYS_VISORHID) += visorhid/
+obj-$(CONFIG_UNISYS_VISORINPUT) += visorinput/
obj-$(CONFIG_UNISYS_VISORHBA) += visorhba/
+++ /dev/null
-#
-# Unisys visorhid configuration
-#
-
-config UNISYS_VISORHID
- tristate "Unisys visorhid driver"
- depends on UNISYSSPAR && UNISYS_VISORBUS && FB
- ---help---
- If you say Y here, you will enable the Unisys visorhid driver.
-
+++ /dev/null
-#
-# Makefile for Unisys visorhid
-#
-
-obj-$(CONFIG_UNISYS_VISORHID) += visorhid.o
-
-ccflags-y += -Idrivers/staging/unisys/include
+++ /dev/null
-/* Copyright (C) 2010 - 2015 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-#ifndef __SPAR_KEYBOARDCHANNEL_H__
-#define __SPAR_KEYBOARDCHANNEL_H__
-
-#include <linux/kernel.h>
-#include <linux/uuid.h>
-
-#include "channel.h"
-#include "ultrainputreport.h"
-
-/* {c73416d0-b0b8-44af-b304-9d2ae99f1b3d} */
-#define SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID \
- UUID_LE(0xc73416d0, 0xb0b8, 0x44af, \
- 0xb3, 0x4, 0x9d, 0x2a, 0xe9, 0x9f, 0x1b, 0x3d)
-#define SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID_STR "c73416d0-b0b8-44af-b304-9d2ae99f1b3d"
-#define SPAR_KEYBOARD_CHANNEL_PROTOCOL_VERSIONID 1
-#define KEYBOARD_MAXINPUTREPORTS 50
-
-#endif
+++ /dev/null
-/* Copyright (C) 2010 - 2015 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-#ifndef __SPAR_MOUSECHANNEL_H__
-#define __SPAR_MOUSECHANNEL_H__
-
-#include <linux/kernel.h>
-#include <linux/uuid.h>
-
-#include "channel.h"
-#include "ultrainputreport.h"
-
-/* {addf07d4-94a9-46e2-81c3-61abcdbdbd87} */
-#define SPAR_MOUSE_CHANNEL_PROTOCOL_UUID \
- UUID_LE(0xaddf07d4, 0x94a9, 0x46e2, \
- 0x81, 0xc3, 0x61, 0xab, 0xcd, 0xbd, 0xbd, 0x87)
-#define SPAR_MOUSE_CHANNEL_PROTOCOL_UUID_STR \
- "addf07d4-94a9-46e2-81c3-61abcdbdbd87"
-#define SPAR_MOUSE_CHANNEL_PROTOCOL_VERSIONID 1
-#define MOUSE_MAXINPUTREPORTS 50
-
-#endif
+++ /dev/null
-/* Copyright (C) 2010 - 2015 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-#ifndef __SPAR_ULTRAINPUTREPORT_H__
-#define __SPAR_ULTRAINPUTREPORT_H__
-
-#include <linux/types.h>
-
-#include "ultrainputreport.h"
-
-/* Identifies mouse and keyboard activity which is specified by the firmware to
- * the host using the cmsimpleinput protocol. @ingroup coretypes
- */
-enum ultra_inputaction {
- inputaction_none = 0,
- inputaction_xy_motion = 1, /* only motion; arg1=x, arg2=y */
- inputaction_mouse_button_down = 2, /* arg1: 1=left,2=center,3=right */
- inputaction_mouse_button_up = 3, /* arg1: 1=left,2=center,3=right */
- inputaction_mouse_button_click = 4, /* arg1: 1=left,2=center,3=right */
- inputaction_mouse_button_dclick = 5, /* arg1: 1=left,2=center,
- 3=right */
- inputaction_wheel_rotate_away = 6, /* arg1: wheel rotation away from
- user */
- inputaction_wheel_rotate_toward = 7, /* arg1: wheel rotation toward
- user */
- inputaction_set_max_xy = 8, /* set screen maxXY; arg1=x, arg2=y */
- inputaction_key_down = 64, /* arg1: scancode, as follows:
- If arg1 <= 0xff, it's a 1-byte
- scancode and arg1 is that scancode.
- If arg1 > 0xff, it's a 2-byte
- scanecode, with the 1st byte in the
- low 8 bits, and the 2nd byte in the
- high 8 bits. E.g., the right ALT key
- would appear as x'38e0'. */
- inputaction_key_up = 65, /* arg1: scancode (in same format as
- inputaction_keyDown) */
- inputaction_set_locking_key_state = 66,
- /* arg1: scancode (in same format
- as inputaction_keyDown);
- MUST refer to one of the
- locking keys, like capslock,
- numlock, or scrolllock
- arg2: 1 iff locking key should be
- in the LOCKED position
- (e.g., light is ON) */
- inputaction_key_down_up = 67, /* arg1: scancode (in same format
- as inputaction_keyDown) */
- inputaction_last
-};
-
-struct ultra_inputactivity {
- u16 action;
- u16 arg1;
- u16 arg2;
- u16 arg3;
-} __packed;
-
-struct ultra_inputreport {
- u64 seq_no;
- struct ultra_inputactivity activity;
-} __packed;
-
-#endif
+++ /dev/null
-/* visorhid.c
- *
- * Copyright (C) 2011 - 2015 UNISYS CORPORATION
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- */
-
-/* This driver lives in a generic guest Linux partition, and registers to
- * receive keyboard and mouse channels from the visorbus driver. It reads
- * inputs from such channels, and delivers it to the Linux OS in the
- * standard way the Linux expects for input drivers.
- */
-
-#include <linux/buffer_head.h>
-#include <linux/fb.h>
-#include <linux/fs.h>
-#include <linux/input.h>
-#include <linux/uaccess.h>
-
-#include "keyboardchannel.h"
-#include "mousechannel.h"
-#include "version.h"
-#include "visorbus.h"
-
-#define PIXELS_ACROSS_DEFAULT 800
-#define PIXELS_DOWN_DEFAULT 600
-
-static const uuid_le spar_keyboard_channel_protocol_uuid =
- SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID;
-static const uuid_le spar_mouse_channel_protocol_uuid =
- SPAR_MOUSE_CHANNEL_PROTOCOL_UUID;
-static int visorhid_probe(struct visor_device *dev);
-static void visorhid_remove(struct visor_device *dev);
-static void visorhid_channel_interrupt(struct visor_device *dev);
-static int visorhid_pause(struct visor_device *dev,
- visorbus_state_complete_func complete_func);
-static int visorhid_resume(struct visor_device *dev,
- visorbus_state_complete_func complete_func);
-static struct input_dev *register_client_keyboard(void);
-static struct input_dev *register_client_mouse(void);
-static void unregister_client_input(struct input_dev *visorinput_dev);
-
-/* GUIDS for all channel types supported by this driver. */
-static struct visor_channeltype_descriptor visorhid_channel_types[] = {
- { SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID, "keyboard"},
- { SPAR_MOUSE_CHANNEL_PROTOCOL_UUID, "mouse"},
- { NULL_UUID_LE, NULL }
-};
-MODULE_DEVICE_TABLE(visorbus, visorhid_channel_types);
-MODULE_ALIAS("visorbus:" SPAR_MOUSE_CHANNEL_PROTOCOL_UUID_STR);
-MODULE_ALIAS("visorbus:" SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID_STR);
-
-/** This is used to tell the visor bus driver which types of visor devices
- * we support, and what functions to call when a visor device that we support
- * is attached or removed.
- */
-static struct visor_driver visorhid_driver = {
- .name = "visorhid",
- .vertag = NULL,
- .owner = THIS_MODULE,
- .channel_types = visorhid_channel_types,
- .probe = visorhid_probe,
- .remove = visorhid_remove,
- .channel_interrupt = visorhid_channel_interrupt,
- .pause = visorhid_pause,
- .resume = visorhid_resume,
-};
-
-enum visorhid_device_type {
- visorhid_keyboard,
- visorhid_mouse,
-};
-
-/* This is the private data that we store for each device.
- * A pointer to this struct is maintained via
- * dev_get_drvdata() / dev_set_drvdata() for each struct device.
- */
-struct visorhid_devdata {
- struct visor_device *dev;
- /** lock for dev */
- struct rw_semaphore lock_visor_dev;
- struct input_dev *visorinput_dev;
- bool paused;
-};
-
-/* Borrowed from drivers/input/keyboard/atakbd.c */
-/* This maps 1-byte scancodes to keycodes. */
-static unsigned char visorkbd_keycode[256] = { /* American layout */
- [0] = KEY_GRAVE,
- [1] = KEY_ESC,
- [2] = KEY_1,
- [3] = KEY_2,
- [4] = KEY_3,
- [5] = KEY_4,
- [6] = KEY_5,
- [7] = KEY_6,
- [8] = KEY_7,
- [9] = KEY_8,
- [10] = KEY_9,
- [11] = KEY_0,
- [12] = KEY_MINUS,
- [13] = KEY_EQUAL,
- [14] = KEY_BACKSPACE,
- [15] = KEY_TAB,
- [16] = KEY_Q,
- [17] = KEY_W,
- [18] = KEY_E,
- [19] = KEY_R,
- [20] = KEY_T,
- [21] = KEY_Y,
- [22] = KEY_U,
- [23] = KEY_I,
- [24] = KEY_O,
- [25] = KEY_P,
- [26] = KEY_LEFTBRACE,
- [27] = KEY_RIGHTBRACE,
- [28] = KEY_ENTER,
- [29] = KEY_LEFTCTRL,
- [30] = KEY_A,
- [31] = KEY_S,
- [32] = KEY_D,
- [33] = KEY_F,
- [34] = KEY_G,
- [35] = KEY_H,
- [36] = KEY_J,
- [37] = KEY_K,
- [38] = KEY_L,
- [39] = KEY_SEMICOLON,
- [40] = KEY_APOSTROPHE,
- [41] = KEY_GRAVE, /* FIXME, '#' */
- [42] = KEY_LEFTSHIFT,
- [43] = KEY_BACKSLASH, /* FIXME, '~' */
- [44] = KEY_Z,
- [45] = KEY_X,
- [46] = KEY_C,
- [47] = KEY_V,
- [48] = KEY_B,
- [49] = KEY_N,
- [50] = KEY_M,
- [51] = KEY_COMMA,
- [52] = KEY_DOT,
- [53] = KEY_SLASH,
- [54] = KEY_RIGHTSHIFT,
- [55] = KEY_KPASTERISK,
- [56] = KEY_LEFTALT,
- [57] = KEY_SPACE,
- [58] = KEY_CAPSLOCK,
- [59] = KEY_F1,
- [60] = KEY_F2,
- [61] = KEY_F3,
- [62] = KEY_F4,
- [63] = KEY_F5,
- [64] = KEY_F6,
- [65] = KEY_F7,
- [66] = KEY_F8,
- [67] = KEY_F9,
- [68] = KEY_F10,
- [69] = KEY_NUMLOCK,
- [70] = KEY_SCROLLLOCK,
- [71] = KEY_KP7,
- [72] = KEY_KP8,
- [73] = KEY_KP9,
- [74] = KEY_KPMINUS,
- [75] = KEY_KP4,
- [76] = KEY_KP5,
- [77] = KEY_KP6,
- [78] = KEY_KPPLUS,
- [79] = KEY_KP1,
- [80] = KEY_KP2,
- [81] = KEY_KP3,
- [82] = KEY_KP0,
- [83] = KEY_KPDOT,
- [86] = KEY_102ND, /* enables UK backslash+pipe key,
- * and FR lessthan+greaterthan key */
- [87] = KEY_F11,
- [88] = KEY_F12,
- [90] = KEY_KPLEFTPAREN,
- [91] = KEY_KPRIGHTPAREN,
- [92] = KEY_KPASTERISK, /* FIXME */
- [93] = KEY_KPASTERISK,
- [94] = KEY_KPPLUS,
- [95] = KEY_HELP,
- [96] = KEY_KPENTER,
- [97] = KEY_RIGHTCTRL,
- [98] = KEY_KPSLASH,
- [99] = KEY_KPLEFTPAREN,
- [100] = KEY_KPRIGHTPAREN,
- [101] = KEY_KPSLASH,
- [102] = KEY_HOME,
- [103] = KEY_UP,
- [104] = KEY_PAGEUP,
- [105] = KEY_LEFT,
- [106] = KEY_RIGHT,
- [107] = KEY_END,
- [108] = KEY_DOWN,
- [109] = KEY_PAGEDOWN,
- [110] = KEY_INSERT,
- [111] = KEY_DELETE,
- [112] = KEY_MACRO,
- [113] = KEY_MUTE
-};
-
-/* This maps the <xx> in extended scancodes of the form "0xE0 <xx>" into
- * keycodes.
- */
-static unsigned char visorkbd_ext_keycode[256] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
- 0, 0, 0, 0, KEY_KPENTER, KEY_RIGHTCTRL, 0, 0, /* 0x18 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
- KEY_RIGHTALT, 0, 0, 0, 0, 0, 0, 0, /* 0x28 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* 0x30 */
- KEY_RIGHTALT /* AltGr */, 0, 0, 0, 0, 0, 0, 0, /* 0x38 */
- 0, 0, 0, 0, 0, 0, 0, KEY_HOME, /* 0x40 */
- KEY_UP, KEY_PAGEUP, 0, KEY_LEFT, 0, KEY_RIGHT, 0, KEY_END, /* 0x48 */
- KEY_DOWN, KEY_PAGEDOWN, KEY_INSERT, KEY_DELETE, 0, 0, 0, 0, /* 0x50 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* 0x58 */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60 */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
-};
-
-static struct visorhid_devdata *
-devdata_create(struct visor_device *dev, enum visorhid_device_type devtype)
-{
- struct visorhid_devdata *devdata = NULL;
-
- devdata = kzalloc(sizeof(*devdata), GFP_KERNEL);
- if (!devdata)
- return NULL;
- devdata->dev = dev;
-
- /* This is an input device in a client guest partition,
- * so we need to create whatever gizmos are necessary to
- * deliver our inputs to the guest OS.
- */
- switch (devtype) {
- case visorhid_keyboard:
- devdata->visorinput_dev = register_client_keyboard();
- if (!devdata->visorinput_dev)
- goto cleanups_register;
- break;
- case visorhid_mouse:
- devdata->visorinput_dev = register_client_mouse();
- if (!devdata->visorinput_dev)
- goto cleanups_register;
- break;
- }
-
- init_rwsem(&devdata->lock_visor_dev);
-
- return devdata;
-
-cleanups_register:
- kfree(devdata);
- return NULL;
-}
-
-static int
-visorhid_probe(struct visor_device *dev)
-{
- struct visorhid_devdata *devdata = NULL;
- uuid_le guid;
- enum visorhid_device_type devtype;
-
- guid = visorchannel_get_uuid(dev->visorchannel);
- if (uuid_le_cmp(guid, spar_mouse_channel_protocol_uuid) == 0)
- devtype = visorhid_mouse;
- else if (uuid_le_cmp(guid, spar_keyboard_channel_protocol_uuid) == 0)
- devtype = visorhid_keyboard;
- else
- return -ENODEV;
- devdata = devdata_create(dev, devtype);
- if (!devdata)
- return -ENOMEM;
- dev_set_drvdata(&dev->device, devdata);
- visorbus_enable_channel_interrupts(dev);
- return 0;
-}
-
-static void
-visorhid_remove(struct visor_device *dev)
-{
- struct visorhid_devdata *devdata = dev_get_drvdata(&dev->device);
-
- if (!devdata)
- return;
-
- visorbus_disable_channel_interrupts(dev);
-
- /* due to above, at this time no thread of execution will be
- * in visorhid_channel_interrupt()
- */
-
- down_write(&devdata->lock_visor_dev);
- dev_set_drvdata(&dev->device, NULL);
- unregister_client_input(devdata->visorinput_dev);
- up_write(&devdata->lock_visor_dev);
- kfree(devdata);
-}
-
-static void
-unregister_client_input(struct input_dev *visorinput_dev)
-{
- if (visorinput_dev)
- input_unregister_device(visorinput_dev);
-}
-
-/* register_client_keyboard() initializes and returns a Linux gizmo that we
- * can use to deliver keyboard inputs to Linux. We of course do this when
- * we see keyboard inputs coming in on a keyboard channel.
- */
-static struct input_dev *
-register_client_keyboard(void)
-{
- int i, error;
- struct input_dev *visorinput_dev = NULL;
-
- visorinput_dev = input_allocate_device();
- if (!visorinput_dev)
- return NULL;
-
- visorinput_dev->name = "visor Keyboard";
- visorinput_dev->phys = "visorkbd:input0";
- visorinput_dev->id.bustype = BUS_HOST;
- visorinput_dev->id.vendor = 0x0001;
- visorinput_dev->id.product = 0x0001;
- visorinput_dev->id.version = 0x0100;
-
- visorinput_dev->evbit[0] = BIT_MASK(EV_KEY) |
- BIT_MASK(EV_REP) |
- BIT_MASK(EV_LED);
- visorinput_dev->ledbit[0] = BIT_MASK(LED_CAPSL) |
- BIT_MASK(LED_SCROLLL) |
- BIT_MASK(LED_NUML);
- visorinput_dev->keycode = visorkbd_keycode;
- visorinput_dev->keycodesize = sizeof(unsigned char);
- visorinput_dev->keycodemax = ARRAY_SIZE(visorkbd_keycode);
-
- for (i = 1; i < ARRAY_SIZE(visorkbd_keycode); i++)
- set_bit(visorkbd_keycode[i], visorinput_dev->keybit);
-
- for (i = 1; i < ARRAY_SIZE(visorkbd_ext_keycode); i++)
- set_bit(visorkbd_ext_keycode[i], visorinput_dev->keybit);
-
- error = input_register_device(visorinput_dev);
- if (error) {
- input_free_device(visorinput_dev);
- return NULL;
- }
- return visorinput_dev;
-}
-
-static struct input_dev *
-register_client_mouse(void)
-{
- int error;
- struct input_dev *visorinput_dev = NULL;
- int xres, yres;
- struct fb_info *fb0;
-
- visorinput_dev = input_allocate_device();
- if (!visorinput_dev)
- return NULL;
-
- visorinput_dev->name = "visor Mouse";
- visorinput_dev->phys = "visormou:input0";
- visorinput_dev->id.bustype = BUS_HOST;
- visorinput_dev->id.vendor = 0x0001;
- visorinput_dev->id.product = 0x0002;
- visorinput_dev->id.version = 0x0100;
-
- visorinput_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
- set_bit(BTN_LEFT, visorinput_dev->keybit);
- set_bit(BTN_RIGHT, visorinput_dev->keybit);
- set_bit(BTN_MIDDLE, visorinput_dev->keybit);
-
- if (registered_fb[0]) {
- fb0 = registered_fb[0];
- xres = fb0->var.xres_virtual;
- yres = fb0->var.yres_virtual;
- } else {
- xres = PIXELS_ACROSS_DEFAULT;
- yres = PIXELS_DOWN_DEFAULT;
- }
- input_set_abs_params(visorinput_dev, ABS_X, 0, xres, 0, 0);
- input_set_abs_params(visorinput_dev, ABS_Y, 0, yres, 0, 0);
-
- error = input_register_device(visorinput_dev);
- if (error) {
- input_free_device(visorinput_dev);
- return NULL;
- }
-
- /* Sending top-left and bottom-right positions is ABSOLUTELY
- * REQUIRED if we want X to move the mouse to the exact points
- * we tell it. I have NO IDEA why.
- */
- input_report_abs(visorinput_dev, ABS_X, 0);
- input_report_abs(visorinput_dev, ABS_Y, 0);
- input_sync(visorinput_dev);
- input_report_abs(visorinput_dev, ABS_X, xres - 1);
- input_report_abs(visorinput_dev, ABS_Y, yres - 1);
- input_sync(visorinput_dev);
-
- input_set_capability(visorinput_dev, EV_REL, REL_WHEEL);
-
- return visorinput_dev;
-}
-
-static void
-do_key(struct input_dev *inpt, int keycode, int down)
-{
- input_report_key(inpt, keycode, down);
-}
-
-/* Make it so the current locking state of the locking key indicated by
- * <keycode> is as indicated by <desired_state> (1=locked, 0=unlocked).
- */
-static void
-handle_locking_key(struct input_dev *visorinput_dev,
- int keycode, int desired_state)
-{
- int led;
- char *sled;
-
- switch (keycode) {
- case KEY_CAPSLOCK:
- led = LED_CAPSL;
- sled = "CAP";
- break;
- case KEY_SCROLLLOCK:
- led = LED_SCROLLL;
- sled = "SCR";
- break;
- case KEY_NUMLOCK:
- led = LED_NUML;
- sled = "NUM";
- break;
- default:
- led = -1;
- break;
- }
- if (led >= 0) {
- int old_state = (test_bit(led, visorinput_dev->led) != 0);
-
- if (old_state != desired_state) {
- do_key(visorinput_dev, keycode, 1);
- input_sync(visorinput_dev);
- do_key(visorinput_dev, keycode, 0);
- input_sync(visorinput_dev);
- __change_bit(led, visorinput_dev->led);
- }
- }
-}
-
-/* <scancode> is either a 1-byte scancode, or an extended 16-bit scancode
- * with 0xE0 in the low byte and the extended scancode value in the next
- * higher byte.
- */
-static int
-scancode_to_keycode(int scancode)
-{
- int keycode;
-
- if (scancode > 0xff)
- keycode = visorkbd_ext_keycode[(scancode >> 8) & 0xff];
- else
- keycode = visorkbd_keycode[scancode];
- return keycode;
-}
-
-static int
-calc_button(int x)
-{
- switch (x) {
- case 1:
- return BTN_LEFT;
- case 2:
- return BTN_MIDDLE;
- case 3:
- return BTN_RIGHT;
- default:
- return -1;
- }
-}
-
-/* This is used only when this driver is active as an input driver in the
- * client guest partition. It is called periodically so we can obtain inputs
- * from the channel, and deliver them to the guest OS.
- */
-static void
-visorhid_channel_interrupt(struct visor_device *dev)
-{
- struct ultra_inputreport r;
- int scancode, keycode;
- struct input_dev *visorinput_dev;
- int xmotion, ymotion, zmotion, button;
- int i;
-
- struct visorhid_devdata *devdata = dev_get_drvdata(&dev->device);
-
- if (!devdata)
- return;
-
- down_write(&devdata->lock_visor_dev);
- if (devdata->paused) /* don't touch device/channel when paused */
- goto out_locked;
-
- visorinput_dev = devdata->visorinput_dev;
- if (!visorinput_dev)
- goto out_locked;
-
- while (visorchannel_signalremove(dev->visorchannel, 0, &r)) {
- scancode = r.activity.arg1;
- keycode = scancode_to_keycode(scancode);
- switch (r.activity.action) {
- case inputaction_key_down:
- do_key(visorinput_dev, keycode, 1);
- input_sync(visorinput_dev);
- break;
- case inputaction_key_up:
- do_key(visorinput_dev, keycode, 0);
- input_sync(visorinput_dev);
- break;
- case inputaction_key_down_up:
- do_key(visorinput_dev, keycode, 1);
- input_sync(visorinput_dev);
- do_key(visorinput_dev, keycode, 0);
- input_sync(visorinput_dev);
- break;
- case inputaction_set_locking_key_state:
- handle_locking_key(visorinput_dev, keycode,
- r.activity.arg2);
- break;
- case inputaction_xy_motion:
- xmotion = r.activity.arg1;
- ymotion = r.activity.arg2;
- input_report_abs(visorinput_dev, ABS_X, xmotion);
- input_report_abs(visorinput_dev, ABS_Y, ymotion);
- input_sync(visorinput_dev);
- break;
- case inputaction_mouse_button_down:
- button = calc_button(r.activity.arg1);
- if (button < 0)
- break;
- input_report_key(visorinput_dev, button, 1);
- input_sync(visorinput_dev);
- break;
- case inputaction_mouse_button_up:
- button = calc_button(r.activity.arg1);
- if (button < 0)
- break;
- input_report_key(visorinput_dev, button, 0);
- input_sync(visorinput_dev);
- break;
- case inputaction_mouse_button_click:
- button = calc_button(r.activity.arg1);
- if (button < 0)
- break;
- input_report_key(visorinput_dev, button, 1);
-
- input_sync(visorinput_dev);
- input_report_key(visorinput_dev, button, 0);
- input_sync(visorinput_dev);
- break;
- case inputaction_mouse_button_dclick:
- button = calc_button(r.activity.arg1);
- if (button < 0)
- break;
- for (i = 0; i < 2; i++) {
- input_report_key(visorinput_dev, button, 1);
- input_sync(visorinput_dev);
- input_report_key(visorinput_dev, button, 0);
- input_sync(visorinput_dev);
- }
- break;
- case inputaction_wheel_rotate_away:
- zmotion = r.activity.arg1;
- input_report_rel(visorinput_dev, REL_WHEEL, 1);
- input_sync(visorinput_dev);
- break;
- case inputaction_wheel_rotate_toward:
- zmotion = r.activity.arg1;
- input_report_rel(visorinput_dev, REL_WHEEL, -1);
- input_sync(visorinput_dev);
- break;
- }
- }
-out_locked:
- up_write(&devdata->lock_visor_dev);
-}
-
-static int
-visorhid_pause(struct visor_device *dev,
- visorbus_state_complete_func complete_func)
-{
- int rc;
- struct visorhid_devdata *devdata = dev_get_drvdata(&dev->device);
-
- if (!devdata) {
- rc = -ENODEV;
- goto out;
- }
-
- down_write(&devdata->lock_visor_dev);
- if (devdata->paused) {
- rc = -EBUSY;
- goto out_locked;
- }
- devdata->paused = true;
- complete_func(dev, 0);
- rc = 0;
-out_locked:
- up_write(&devdata->lock_visor_dev);
-out:
- return rc;
-}
-
-static int
-visorhid_resume(struct visor_device *dev,
- visorbus_state_complete_func complete_func)
-{
- int rc;
- struct visorhid_devdata *devdata = dev_get_drvdata(&dev->device);
-
- if (!devdata) {
- rc = -ENODEV;
- goto out;
- }
- down_write(&devdata->lock_visor_dev);
- if (!devdata->paused) {
- rc = -EBUSY;
- goto out_locked;
- }
- devdata->paused = false;
- complete_func(dev, 0);
- rc = 0;
-out_locked:
- up_write(&devdata->lock_visor_dev);
-out:
- return rc;
-}
-
-static int
-visorhid_init(void)
-{
- return visorbus_register_visor_driver(&visorhid_driver);
-}
-
-static void
-visorhid_cleanup(void)
-{
- visorbus_unregister_visor_driver(&visorhid_driver);
-}
-
-module_init(visorhid_init);
-module_exit(visorhid_cleanup);
-
-MODULE_AUTHOR("Unisys");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("s-Par human input driver for guest Linux");
-MODULE_VERSION(VERSION);
--- /dev/null
+#
+# Unisys visorinput configuration
+#
+
+config UNISYS_VISORINPUT
+ tristate "Unisys visorinput driver"
+ depends on UNISYSSPAR && UNISYS_VISORBUS && FB
+ ---help---
+ If you say Y here, you will enable the Unisys visorinput driver.
+
--- /dev/null
+#
+# Makefile for Unisys visorinput
+#
+
+obj-$(CONFIG_UNISYS_VISORINPUT) += visorinput.o
+
+ccflags-y += -Idrivers/staging/unisys/include
--- /dev/null
+/* Copyright (C) 2010 - 2015 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+#ifndef __SPAR_KEYBOARDCHANNEL_H__
+#define __SPAR_KEYBOARDCHANNEL_H__
+
+#include <linux/kernel.h>
+#include <linux/uuid.h>
+
+#include "channel.h"
+#include "ultrainputreport.h"
+
+/* {c73416d0-b0b8-44af-b304-9d2ae99f1b3d} */
+#define SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID \
+ UUID_LE(0xc73416d0, 0xb0b8, 0x44af, \
+ 0xb3, 0x4, 0x9d, 0x2a, 0xe9, 0x9f, 0x1b, 0x3d)
+#define SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID_STR "c73416d0-b0b8-44af-b304-9d2ae99f1b3d"
+#define SPAR_KEYBOARD_CHANNEL_PROTOCOL_VERSIONID 1
+#define KEYBOARD_MAXINPUTREPORTS 50
+
+#endif
--- /dev/null
+/* Copyright (C) 2010 - 2015 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+#ifndef __SPAR_MOUSECHANNEL_H__
+#define __SPAR_MOUSECHANNEL_H__
+
+#include <linux/kernel.h>
+#include <linux/uuid.h>
+
+#include "channel.h"
+#include "ultrainputreport.h"
+
+/* {addf07d4-94a9-46e2-81c3-61abcdbdbd87} */
+#define SPAR_MOUSE_CHANNEL_PROTOCOL_UUID \
+ UUID_LE(0xaddf07d4, 0x94a9, 0x46e2, \
+ 0x81, 0xc3, 0x61, 0xab, 0xcd, 0xbd, 0xbd, 0x87)
+#define SPAR_MOUSE_CHANNEL_PROTOCOL_UUID_STR \
+ "addf07d4-94a9-46e2-81c3-61abcdbdbd87"
+#define SPAR_MOUSE_CHANNEL_PROTOCOL_VERSIONID 1
+#define MOUSE_MAXINPUTREPORTS 50
+
+#endif
--- /dev/null
+/* Copyright (C) 2010 - 2015 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+#ifndef __SPAR_ULTRAINPUTREPORT_H__
+#define __SPAR_ULTRAINPUTREPORT_H__
+
+#include <linux/types.h>
+
+#include "ultrainputreport.h"
+
+/* Identifies mouse and keyboard activity which is specified by the firmware to
+ * the host using the cmsimpleinput protocol. @ingroup coretypes
+ */
+enum ultra_inputaction {
+ inputaction_none = 0,
+ inputaction_xy_motion = 1, /* only motion; arg1=x, arg2=y */
+ inputaction_mouse_button_down = 2, /* arg1: 1=left,2=center,3=right */
+ inputaction_mouse_button_up = 3, /* arg1: 1=left,2=center,3=right */
+ inputaction_mouse_button_click = 4, /* arg1: 1=left,2=center,3=right */
+ inputaction_mouse_button_dclick = 5, /* arg1: 1=left,2=center,
+ 3=right */
+ inputaction_wheel_rotate_away = 6, /* arg1: wheel rotation away from
+ user */
+ inputaction_wheel_rotate_toward = 7, /* arg1: wheel rotation toward
+ user */
+ inputaction_set_max_xy = 8, /* set screen maxXY; arg1=x, arg2=y */
+ inputaction_key_down = 64, /* arg1: scancode, as follows:
+ If arg1 <= 0xff, it's a 1-byte
+ scancode and arg1 is that scancode.
+ If arg1 > 0xff, it's a 2-byte
+ scanecode, with the 1st byte in the
+ low 8 bits, and the 2nd byte in the
+ high 8 bits. E.g., the right ALT key
+ would appear as x'38e0'. */
+ inputaction_key_up = 65, /* arg1: scancode (in same format as
+ inputaction_keyDown) */
+ inputaction_set_locking_key_state = 66,
+ /* arg1: scancode (in same format
+ as inputaction_keyDown);
+ MUST refer to one of the
+ locking keys, like capslock,
+ numlock, or scrolllock
+ arg2: 1 iff locking key should be
+ in the LOCKED position
+ (e.g., light is ON) */
+ inputaction_key_down_up = 67, /* arg1: scancode (in same format
+ as inputaction_keyDown) */
+ inputaction_last
+};
+
+struct ultra_inputactivity {
+ u16 action;
+ u16 arg1;
+ u16 arg2;
+ u16 arg3;
+} __packed;
+
+struct ultra_inputreport {
+ u64 seq_no;
+ struct ultra_inputactivity activity;
+} __packed;
+
+#endif
--- /dev/null
+/* visorinput.c
+ *
+ * Copyright (C) 2011 - 2015 UNISYS CORPORATION
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ */
+
+/* This driver lives in a generic guest Linux partition, and registers to
+ * receive keyboard and mouse channels from the visorbus driver. It reads
+ * inputs from such channels, and delivers it to the Linux OS in the
+ * standard way the Linux expects for input drivers.
+ */
+
+#include <linux/buffer_head.h>
+#include <linux/fb.h>
+#include <linux/fs.h>
+#include <linux/input.h>
+#include <linux/uaccess.h>
+
+#include "keyboardchannel.h"
+#include "mousechannel.h"
+#include "version.h"
+#include "visorbus.h"
+
+#define PIXELS_ACROSS_DEFAULT 800
+#define PIXELS_DOWN_DEFAULT 600
+
+static const uuid_le spar_keyboard_channel_protocol_uuid =
+ SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID;
+static const uuid_le spar_mouse_channel_protocol_uuid =
+ SPAR_MOUSE_CHANNEL_PROTOCOL_UUID;
+static int visorinput_probe(struct visor_device *dev);
+static void visorinput_remove(struct visor_device *dev);
+static void visorinput_channel_interrupt(struct visor_device *dev);
+static int visorinput_pause(struct visor_device *dev,
+ visorbus_state_complete_func complete_func);
+static int visorinput_resume(struct visor_device *dev,
+ visorbus_state_complete_func complete_func);
+static struct input_dev *register_client_keyboard(void);
+static struct input_dev *register_client_mouse(void);
+static void unregister_client_input(struct input_dev *visorinput_dev);
+
+/* GUIDS for all channel types supported by this driver. */
+static struct visor_channeltype_descriptor visorinput_channel_types[] = {
+ { SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID, "keyboard"},
+ { SPAR_MOUSE_CHANNEL_PROTOCOL_UUID, "mouse"},
+ { NULL_UUID_LE, NULL }
+};
+MODULE_DEVICE_TABLE(visorbus, visorinput_channel_types);
+MODULE_ALIAS("visorbus:" SPAR_MOUSE_CHANNEL_PROTOCOL_UUID_STR);
+MODULE_ALIAS("visorbus:" SPAR_KEYBOARD_CHANNEL_PROTOCOL_UUID_STR);
+
+/** This is used to tell the visor bus driver which types of visor devices
+ * we support, and what functions to call when a visor device that we support
+ * is attached or removed.
+ */
+static struct visor_driver visorinput_driver = {
+ .name = "visorinput",
+ .vertag = NULL,
+ .owner = THIS_MODULE,
+ .channel_types = visorinput_channel_types,
+ .probe = visorinput_probe,
+ .remove = visorinput_remove,
+ .channel_interrupt = visorinput_channel_interrupt,
+ .pause = visorinput_pause,
+ .resume = visorinput_resume,
+};
+
+enum visorinput_device_type {
+ visorinput_keyboard,
+ visorinput_mouse,
+};
+
+/* This is the private data that we store for each device.
+ * A pointer to this struct is maintained via
+ * dev_get_drvdata() / dev_set_drvdata() for each struct device.
+ */
+struct visorinput_devdata {
+ struct visor_device *dev;
+ /** lock for dev */
+ struct rw_semaphore lock_visor_dev;
+ struct input_dev *visorinput_dev;
+ bool paused;
+};
+
+/* Borrowed from drivers/input/keyboard/atakbd.c */
+/* This maps 1-byte scancodes to keycodes. */
+static unsigned char visorkbd_keycode[256] = { /* American layout */
+ [0] = KEY_GRAVE,
+ [1] = KEY_ESC,
+ [2] = KEY_1,
+ [3] = KEY_2,
+ [4] = KEY_3,
+ [5] = KEY_4,
+ [6] = KEY_5,
+ [7] = KEY_6,
+ [8] = KEY_7,
+ [9] = KEY_8,
+ [10] = KEY_9,
+ [11] = KEY_0,
+ [12] = KEY_MINUS,
+ [13] = KEY_EQUAL,
+ [14] = KEY_BACKSPACE,
+ [15] = KEY_TAB,
+ [16] = KEY_Q,
+ [17] = KEY_W,
+ [18] = KEY_E,
+ [19] = KEY_R,
+ [20] = KEY_T,
+ [21] = KEY_Y,
+ [22] = KEY_U,
+ [23] = KEY_I,
+ [24] = KEY_O,
+ [25] = KEY_P,
+ [26] = KEY_LEFTBRACE,
+ [27] = KEY_RIGHTBRACE,
+ [28] = KEY_ENTER,
+ [29] = KEY_LEFTCTRL,
+ [30] = KEY_A,
+ [31] = KEY_S,
+ [32] = KEY_D,
+ [33] = KEY_F,
+ [34] = KEY_G,
+ [35] = KEY_H,
+ [36] = KEY_J,
+ [37] = KEY_K,
+ [38] = KEY_L,
+ [39] = KEY_SEMICOLON,
+ [40] = KEY_APOSTROPHE,
+ [41] = KEY_GRAVE, /* FIXME, '#' */
+ [42] = KEY_LEFTSHIFT,
+ [43] = KEY_BACKSLASH, /* FIXME, '~' */
+ [44] = KEY_Z,
+ [45] = KEY_X,
+ [46] = KEY_C,
+ [47] = KEY_V,
+ [48] = KEY_B,
+ [49] = KEY_N,
+ [50] = KEY_M,
+ [51] = KEY_COMMA,
+ [52] = KEY_DOT,
+ [53] = KEY_SLASH,
+ [54] = KEY_RIGHTSHIFT,
+ [55] = KEY_KPASTERISK,
+ [56] = KEY_LEFTALT,
+ [57] = KEY_SPACE,
+ [58] = KEY_CAPSLOCK,
+ [59] = KEY_F1,
+ [60] = KEY_F2,
+ [61] = KEY_F3,
+ [62] = KEY_F4,
+ [63] = KEY_F5,
+ [64] = KEY_F6,
+ [65] = KEY_F7,
+ [66] = KEY_F8,
+ [67] = KEY_F9,
+ [68] = KEY_F10,
+ [69] = KEY_NUMLOCK,
+ [70] = KEY_SCROLLLOCK,
+ [71] = KEY_KP7,
+ [72] = KEY_KP8,
+ [73] = KEY_KP9,
+ [74] = KEY_KPMINUS,
+ [75] = KEY_KP4,
+ [76] = KEY_KP5,
+ [77] = KEY_KP6,
+ [78] = KEY_KPPLUS,
+ [79] = KEY_KP1,
+ [80] = KEY_KP2,
+ [81] = KEY_KP3,
+ [82] = KEY_KP0,
+ [83] = KEY_KPDOT,
+ [86] = KEY_102ND, /* enables UK backslash+pipe key,
+ * and FR lessthan+greaterthan key */
+ [87] = KEY_F11,
+ [88] = KEY_F12,
+ [90] = KEY_KPLEFTPAREN,
+ [91] = KEY_KPRIGHTPAREN,
+ [92] = KEY_KPASTERISK, /* FIXME */
+ [93] = KEY_KPASTERISK,
+ [94] = KEY_KPPLUS,
+ [95] = KEY_HELP,
+ [96] = KEY_KPENTER,
+ [97] = KEY_RIGHTCTRL,
+ [98] = KEY_KPSLASH,
+ [99] = KEY_KPLEFTPAREN,
+ [100] = KEY_KPRIGHTPAREN,
+ [101] = KEY_KPSLASH,
+ [102] = KEY_HOME,
+ [103] = KEY_UP,
+ [104] = KEY_PAGEUP,
+ [105] = KEY_LEFT,
+ [106] = KEY_RIGHT,
+ [107] = KEY_END,
+ [108] = KEY_DOWN,
+ [109] = KEY_PAGEDOWN,
+ [110] = KEY_INSERT,
+ [111] = KEY_DELETE,
+ [112] = KEY_MACRO,
+ [113] = KEY_MUTE
+};
+
+/* This maps the <xx> in extended scancodes of the form "0xE0 <xx>" into
+ * keycodes.
+ */
+static unsigned char visorkbd_ext_keycode[256] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
+ 0, 0, 0, 0, KEY_KPENTER, KEY_RIGHTCTRL, 0, 0, /* 0x18 */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
+ KEY_RIGHTALT, 0, 0, 0, 0, 0, 0, 0, /* 0x28 */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x30 */
+ KEY_RIGHTALT /* AltGr */, 0, 0, 0, 0, 0, 0, 0, /* 0x38 */
+ 0, 0, 0, 0, 0, 0, 0, KEY_HOME, /* 0x40 */
+ KEY_UP, KEY_PAGEUP, 0, KEY_LEFT, 0, KEY_RIGHT, 0, KEY_END, /* 0x48 */
+ KEY_DOWN, KEY_PAGEDOWN, KEY_INSERT, KEY_DELETE, 0, 0, 0, 0, /* 0x50 */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x58 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
+};
+
+static struct visorinput_devdata *
+devdata_create(struct visor_device *dev, enum visorinput_device_type devtype)
+{
+ struct visorinput_devdata *devdata = NULL;
+
+ devdata = kzalloc(sizeof(*devdata), GFP_KERNEL);
+ if (!devdata)
+ return NULL;
+ devdata->dev = dev;
+
+ /* This is an input device in a client guest partition,
+ * so we need to create whatever gizmos are necessary to
+ * deliver our inputs to the guest OS.
+ */
+ switch (devtype) {
+ case visorinput_keyboard:
+ devdata->visorinput_dev = register_client_keyboard();
+ if (!devdata->visorinput_dev)
+ goto cleanups_register;
+ break;
+ case visorinput_mouse:
+ devdata->visorinput_dev = register_client_mouse();
+ if (!devdata->visorinput_dev)
+ goto cleanups_register;
+ break;
+ }
+
+ init_rwsem(&devdata->lock_visor_dev);
+
+ return devdata;
+
+cleanups_register:
+ kfree(devdata);
+ return NULL;
+}
+
+static int
+visorinput_probe(struct visor_device *dev)
+{
+ struct visorinput_devdata *devdata = NULL;
+ uuid_le guid;
+ enum visorinput_device_type devtype;
+
+ guid = visorchannel_get_uuid(dev->visorchannel);
+ if (uuid_le_cmp(guid, spar_mouse_channel_protocol_uuid) == 0)
+ devtype = visorinput_mouse;
+ else if (uuid_le_cmp(guid, spar_keyboard_channel_protocol_uuid) == 0)
+ devtype = visorinput_keyboard;
+ else
+ return -ENODEV;
+ devdata = devdata_create(dev, devtype);
+ if (!devdata)
+ return -ENOMEM;
+ dev_set_drvdata(&dev->device, devdata);
+ visorbus_enable_channel_interrupts(dev);
+ return 0;
+}
+
+static void
+visorinput_remove(struct visor_device *dev)
+{
+ struct visorinput_devdata *devdata = dev_get_drvdata(&dev->device);
+
+ if (!devdata)
+ return;
+
+ visorbus_disable_channel_interrupts(dev);
+
+ /* due to above, at this time no thread of execution will be
+ * in visorinput_channel_interrupt()
+ */
+
+ down_write(&devdata->lock_visor_dev);
+ dev_set_drvdata(&dev->device, NULL);
+ unregister_client_input(devdata->visorinput_dev);
+ up_write(&devdata->lock_visor_dev);
+ kfree(devdata);
+}
+
+static void
+unregister_client_input(struct input_dev *visorinput_dev)
+{
+ if (visorinput_dev)
+ input_unregister_device(visorinput_dev);
+}
+
+/* register_client_keyboard() initializes and returns a Linux gizmo that we
+ * can use to deliver keyboard inputs to Linux. We of course do this when
+ * we see keyboard inputs coming in on a keyboard channel.
+ */
+static struct input_dev *
+register_client_keyboard(void)
+{
+ int i, error;
+ struct input_dev *visorinput_dev = NULL;
+
+ visorinput_dev = input_allocate_device();
+ if (!visorinput_dev)
+ return NULL;
+
+ visorinput_dev->name = "visor Keyboard";
+ visorinput_dev->phys = "visorkbd:input0";
+ visorinput_dev->id.bustype = BUS_HOST;
+ visorinput_dev->id.vendor = 0x0001;
+ visorinput_dev->id.product = 0x0001;
+ visorinput_dev->id.version = 0x0100;
+
+ visorinput_dev->evbit[0] = BIT_MASK(EV_KEY) |
+ BIT_MASK(EV_REP) |
+ BIT_MASK(EV_LED);
+ visorinput_dev->ledbit[0] = BIT_MASK(LED_CAPSL) |
+ BIT_MASK(LED_SCROLLL) |
+ BIT_MASK(LED_NUML);
+ visorinput_dev->keycode = visorkbd_keycode;
+ visorinput_dev->keycodesize = sizeof(unsigned char);
+ visorinput_dev->keycodemax = ARRAY_SIZE(visorkbd_keycode);
+
+ for (i = 1; i < ARRAY_SIZE(visorkbd_keycode); i++)
+ set_bit(visorkbd_keycode[i], visorinput_dev->keybit);
+
+ for (i = 1; i < ARRAY_SIZE(visorkbd_ext_keycode); i++)
+ set_bit(visorkbd_ext_keycode[i], visorinput_dev->keybit);
+
+ error = input_register_device(visorinput_dev);
+ if (error) {
+ input_free_device(visorinput_dev);
+ return NULL;
+ }
+ return visorinput_dev;
+}
+
+static struct input_dev *
+register_client_mouse(void)
+{
+ int error;
+ struct input_dev *visorinput_dev = NULL;
+ int xres, yres;
+ struct fb_info *fb0;
+
+ visorinput_dev = input_allocate_device();
+ if (!visorinput_dev)
+ return NULL;
+
+ visorinput_dev->name = "visor Mouse";
+ visorinput_dev->phys = "visormou:input0";
+ visorinput_dev->id.bustype = BUS_HOST;
+ visorinput_dev->id.vendor = 0x0001;
+ visorinput_dev->id.product = 0x0002;
+ visorinput_dev->id.version = 0x0100;
+
+ visorinput_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ set_bit(BTN_LEFT, visorinput_dev->keybit);
+ set_bit(BTN_RIGHT, visorinput_dev->keybit);
+ set_bit(BTN_MIDDLE, visorinput_dev->keybit);
+
+ if (registered_fb[0]) {
+ fb0 = registered_fb[0];
+ xres = fb0->var.xres_virtual;
+ yres = fb0->var.yres_virtual;
+ } else {
+ xres = PIXELS_ACROSS_DEFAULT;
+ yres = PIXELS_DOWN_DEFAULT;
+ }
+ input_set_abs_params(visorinput_dev, ABS_X, 0, xres, 0, 0);
+ input_set_abs_params(visorinput_dev, ABS_Y, 0, yres, 0, 0);
+
+ error = input_register_device(visorinput_dev);
+ if (error) {
+ input_free_device(visorinput_dev);
+ return NULL;
+ }
+
+ /* Sending top-left and bottom-right positions is ABSOLUTELY
+ * REQUIRED if we want X to move the mouse to the exact points
+ * we tell it. I have NO IDEA why.
+ */
+ input_report_abs(visorinput_dev, ABS_X, 0);
+ input_report_abs(visorinput_dev, ABS_Y, 0);
+ input_sync(visorinput_dev);
+ input_report_abs(visorinput_dev, ABS_X, xres - 1);
+ input_report_abs(visorinput_dev, ABS_Y, yres - 1);
+ input_sync(visorinput_dev);
+
+ input_set_capability(visorinput_dev, EV_REL, REL_WHEEL);
+
+ return visorinput_dev;
+}
+
+static void
+do_key(struct input_dev *inpt, int keycode, int down)
+{
+ input_report_key(inpt, keycode, down);
+}
+
+/* Make it so the current locking state of the locking key indicated by
+ * <keycode> is as indicated by <desired_state> (1=locked, 0=unlocked).
+ */
+static void
+handle_locking_key(struct input_dev *visorinput_dev,
+ int keycode, int desired_state)
+{
+ int led;
+ char *sled;
+
+ switch (keycode) {
+ case KEY_CAPSLOCK:
+ led = LED_CAPSL;
+ sled = "CAP";
+ break;
+ case KEY_SCROLLLOCK:
+ led = LED_SCROLLL;
+ sled = "SCR";
+ break;
+ case KEY_NUMLOCK:
+ led = LED_NUML;
+ sled = "NUM";
+ break;
+ default:
+ led = -1;
+ break;
+ }
+ if (led >= 0) {
+ int old_state = (test_bit(led, visorinput_dev->led) != 0);
+
+ if (old_state != desired_state) {
+ do_key(visorinput_dev, keycode, 1);
+ input_sync(visorinput_dev);
+ do_key(visorinput_dev, keycode, 0);
+ input_sync(visorinput_dev);
+ __change_bit(led, visorinput_dev->led);
+ }
+ }
+}
+
+/* <scancode> is either a 1-byte scancode, or an extended 16-bit scancode
+ * with 0xE0 in the low byte and the extended scancode value in the next
+ * higher byte.
+ */
+static int
+scancode_to_keycode(int scancode)
+{
+ int keycode;
+
+ if (scancode > 0xff)
+ keycode = visorkbd_ext_keycode[(scancode >> 8) & 0xff];
+ else
+ keycode = visorkbd_keycode[scancode];
+ return keycode;
+}
+
+static int
+calc_button(int x)
+{
+ switch (x) {
+ case 1:
+ return BTN_LEFT;
+ case 2:
+ return BTN_MIDDLE;
+ case 3:
+ return BTN_RIGHT;
+ default:
+ return -1;
+ }
+}
+
+/* This is used only when this driver is active as an input driver in the
+ * client guest partition. It is called periodically so we can obtain inputs
+ * from the channel, and deliver them to the guest OS.
+ */
+static void
+visorinput_channel_interrupt(struct visor_device *dev)
+{
+ struct ultra_inputreport r;
+ int scancode, keycode;
+ struct input_dev *visorinput_dev;
+ int xmotion, ymotion, zmotion, button;
+ int i;
+
+ struct visorinput_devdata *devdata = dev_get_drvdata(&dev->device);
+
+ if (!devdata)
+ return;
+
+ down_write(&devdata->lock_visor_dev);
+ if (devdata->paused) /* don't touch device/channel when paused */
+ goto out_locked;
+
+ visorinput_dev = devdata->visorinput_dev;
+ if (!visorinput_dev)
+ goto out_locked;
+
+ while (visorchannel_signalremove(dev->visorchannel, 0, &r)) {
+ scancode = r.activity.arg1;
+ keycode = scancode_to_keycode(scancode);
+ switch (r.activity.action) {
+ case inputaction_key_down:
+ do_key(visorinput_dev, keycode, 1);
+ input_sync(visorinput_dev);
+ break;
+ case inputaction_key_up:
+ do_key(visorinput_dev, keycode, 0);
+ input_sync(visorinput_dev);
+ break;
+ case inputaction_key_down_up:
+ do_key(visorinput_dev, keycode, 1);
+ input_sync(visorinput_dev);
+ do_key(visorinput_dev, keycode, 0);
+ input_sync(visorinput_dev);
+ break;
+ case inputaction_set_locking_key_state:
+ handle_locking_key(visorinput_dev, keycode,
+ r.activity.arg2);
+ break;
+ case inputaction_xy_motion:
+ xmotion = r.activity.arg1;
+ ymotion = r.activity.arg2;
+ input_report_abs(visorinput_dev, ABS_X, xmotion);
+ input_report_abs(visorinput_dev, ABS_Y, ymotion);
+ input_sync(visorinput_dev);
+ break;
+ case inputaction_mouse_button_down:
+ button = calc_button(r.activity.arg1);
+ if (button < 0)
+ break;
+ input_report_key(visorinput_dev, button, 1);
+ input_sync(visorinput_dev);
+ break;
+ case inputaction_mouse_button_up:
+ button = calc_button(r.activity.arg1);
+ if (button < 0)
+ break;
+ input_report_key(visorinput_dev, button, 0);
+ input_sync(visorinput_dev);
+ break;
+ case inputaction_mouse_button_click:
+ button = calc_button(r.activity.arg1);
+ if (button < 0)
+ break;
+ input_report_key(visorinput_dev, button, 1);
+
+ input_sync(visorinput_dev);
+ input_report_key(visorinput_dev, button, 0);
+ input_sync(visorinput_dev);
+ break;
+ case inputaction_mouse_button_dclick:
+ button = calc_button(r.activity.arg1);
+ if (button < 0)
+ break;
+ for (i = 0; i < 2; i++) {
+ input_report_key(visorinput_dev, button, 1);
+ input_sync(visorinput_dev);
+ input_report_key(visorinput_dev, button, 0);
+ input_sync(visorinput_dev);
+ }
+ break;
+ case inputaction_wheel_rotate_away:
+ zmotion = r.activity.arg1;
+ input_report_rel(visorinput_dev, REL_WHEEL, 1);
+ input_sync(visorinput_dev);
+ break;
+ case inputaction_wheel_rotate_toward:
+ zmotion = r.activity.arg1;
+ input_report_rel(visorinput_dev, REL_WHEEL, -1);
+ input_sync(visorinput_dev);
+ break;
+ }
+ }
+out_locked:
+ up_write(&devdata->lock_visor_dev);
+}
+
+static int
+visorinput_pause(struct visor_device *dev,
+ visorbus_state_complete_func complete_func)
+{
+ int rc;
+ struct visorinput_devdata *devdata = dev_get_drvdata(&dev->device);
+
+ if (!devdata) {
+ rc = -ENODEV;
+ goto out;
+ }
+
+ down_write(&devdata->lock_visor_dev);
+ if (devdata->paused) {
+ rc = -EBUSY;
+ goto out_locked;
+ }
+ devdata->paused = true;
+ complete_func(dev, 0);
+ rc = 0;
+out_locked:
+ up_write(&devdata->lock_visor_dev);
+out:
+ return rc;
+}
+
+static int
+visorinput_resume(struct visor_device *dev,
+ visorbus_state_complete_func complete_func)
+{
+ int rc;
+ struct visorinput_devdata *devdata = dev_get_drvdata(&dev->device);
+
+ if (!devdata) {
+ rc = -ENODEV;
+ goto out;
+ }
+ down_write(&devdata->lock_visor_dev);
+ if (!devdata->paused) {
+ rc = -EBUSY;
+ goto out_locked;
+ }
+ devdata->paused = false;
+ complete_func(dev, 0);
+ rc = 0;
+out_locked:
+ up_write(&devdata->lock_visor_dev);
+out:
+ return rc;
+}
+
+static int
+visorinput_init(void)
+{
+ return visorbus_register_visor_driver(&visorinput_driver);
+}
+
+static void
+visorinput_cleanup(void)
+{
+ visorbus_unregister_visor_driver(&visorinput_driver);
+}
+
+module_init(visorinput_init);
+module_exit(visorinput_cleanup);
+
+MODULE_AUTHOR("Unisys");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("s-Par human input driver for guest Linux");
+MODULE_VERSION(VERSION);
projects / GitHub / LineageOS / G12 / android_kernel_amlogic_linux-4.9.git / commitdiff