arch/arm/mach-pxa/htcuniversal/htcuniversal_buttons.c

   1 /*
   2  * Buttons driver for HTC Universal
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.
   6  *
   7  * Copyright (C) 2005 Pawel Kolodziejski
   8  * Copyright (C) 2003 Joshua Wise
   9  *
  10  */
  11
  12 #include <linux/input.h>
  13 #include <linux/input_pda.h>
  14 #include <linux/module.h>
  15 #include <linux/init.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/irq.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/soc/asic3_base.h>
  20 #include <asm/mach-types.h>
  21 #include <asm/hardware/gpio_keys.h>
  22 #include <asm/hardware/asic3_keys.h>
  23 #include <asm/arch/htcuniversal-gpio.h>
  24 #include <asm/arch/htcuniversal-asic.h>
  25
  26 extern struct platform_device htcuniversal_asic3;
  27
  28 static struct asic3_keys_button asic3_buttons[] = {
  29 {  KEY_F10,  GPIOA_BUTTON_BACKLIGHT_N,1,        "backlight_button"},
  30 {  KEY_F24,  GPIOA_BUTTON_RECORD_N,1,   "record_button"},
  31 {  KEY_F10,  GPIOA_BUTTON_CAMERA_N,1,   "camera_button"},
  32 {  SW_LID,  GPIOA_COVER_ROTATE_N,1,     "screen_cover"},
  33 {  KEY_VOLUMEDOWN,  GPIOA_VOL_UP_N,1,   "volume_slider_down"},
  34 {  KEY_VOLUMEUP,  GPIOA_VOL_DOWN_N,1,   "volume_slider_up"},
  35 {  SW_TABLET_MODE,  GPIOB_CLAMSHELL_N,1,        "clamshell_rotate"},
  36 //{  SW_2,  GPIOB_NIGHT_SENSOR,1,       "night_sensor"},
  37 {  KEY_KPENTER,  GPIOD_KEY_OK_N,1,      "select"},
  38 {  KEY_RIGHT,  GPIOD_KEY_RIGHT_N,1,     "right"},
  39 {  KEY_LEFT,  GPIOD_KEY_LEFT_N,1,       "left"},
  40 {  KEY_DOWN,  GPIOD_KEY_DOWN_N,1,       "down"},
  41 {  KEY_UP,  GPIOD_KEY_UP_N,1,   "up"},
  42 };
  43
  44 static struct asic3_keys_platform_data asic3_keys_data = {
  45         .buttons = asic3_buttons,
  46         .nbuttons = ARRAY_SIZE(asic3_buttons),
  47         .asic3_dev = &htcuniversal_asic3.dev,
  48 };
  49
  50 static struct platform_device htcuniversal_keys_asic3 = {
  51         .name = "asic3-keys",
  52         .dev = { .platform_data = &asic3_keys_data, }
  53 };
  54
  55 static int __init htcuniversal_buttons_probe(struct platform_device *dev)
  56 {
  57         platform_device_register(&htcuniversal_keys_asic3);
  58         return 0;
  59 }
  60
  61 static struct platform_driver htcuniversal_buttons_driver = {
  62         .driver         = {
  63             .name       = "htcuniversal_buttons",
  64         },
  65         .probe          = htcuniversal_buttons_probe,
  66 };
  67
  68 static int __init htcuniversal_buttons_init(void)
  69 {
  70         if (!machine_is_htcuniversal())
  71                 return -ENODEV;
  72
  73         return platform_driver_register(&htcuniversal_buttons_driver);
  74 }
  75
  76 static void __exit htcuniversal_buttons_exit(void)
  77 {
  78         platform_driver_unregister(&htcuniversal_buttons_driver);
  79 }
  80
  81 module_init(htcuniversal_buttons_init);
  82 module_exit(htcuniversal_buttons_exit);
  83
  84 MODULE_AUTHOR ("Joshua Wise, Pawel Kolodziejski, Paul Sokolosvky");
  85 MODULE_DESCRIPTION ("Buttons support for HTC Universal");
  86 MODULE_LICENSE ("GPL");