target/linux/s3c24xx/patches-2.6.26/0009-gta01-inputdevice.patch.patch

   1 From db36b757a45cf8d9088727d975d93917021b1171 Mon Sep 17 00:00:00 2001
   2 From: mokopatches <mokopatches@openmoko.org>
   3 Date: Wed, 16 Jul 2008 14:44:48 +0100
   4 Subject: [PATCH] gta01-inputdevice.patch
   5  This provides support for the GTA01 keyboard
   6
   7 Signed-off-by: Harald Welte <laforge@openmoko.org>
   8 ---
   9  drivers/input/keyboard/Kconfig      |   12 ++
  10  drivers/input/keyboard/Makefile     |    1 +
  11  drivers/input/keyboard/neo1973kbd.c |  242 +++++++++++++++++++++++++++++++++++
  12  3 files changed, 255 insertions(+), 0 deletions(-)
  13  create mode 100644 drivers/input/keyboard/neo1973kbd.c
  14
  15 diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
  16 index efd70a9..b8ecca9 100644
  17 --- a/drivers/input/keyboard/Kconfig
  18 +++ b/drivers/input/keyboard/Kconfig
  19 @@ -323,4 +323,16 @@ config KEYBOARD_SH_KEYSC
  20
  21           To compile this driver as a module, choose M here: the
  22           module will be called sh_keysc.
  23 +config KEYBOARD_NEO1973
  24 +       tristate "FIC Neo1973 buttons"
  25 +       depends on MACH_NEO1973
  26 +       default y
  27 +       help
  28 +         Say Y here to enable the buttons on the FIC Neo1973
  29 +         GSM phone.
  30 +
  31 +         To compile this driver as a module, choose M here: the
  32 +         module will be called neo1973kbd.
  33 +
  34 +
  35  endif
  36 diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
  37 index 0edc8f2..b3aa339 100644
  38 --- a/drivers/input/keyboard/Makefile
  39 +++ b/drivers/input/keyboard/Makefile
  40 @@ -14,6 +14,7 @@ obj-$(CONFIG_KEYBOARD_LOCOMO)         += locomokbd.o
  41  obj-$(CONFIG_KEYBOARD_NEWTON)          += newtonkbd.o
  42  obj-$(CONFIG_KEYBOARD_STOWAWAY)                += stowaway.o
  43  obj-$(CONFIG_KEYBOARD_CORGI)           += corgikbd.o
  44 +obj-$(CONFIG_KEYBOARD_NEO1973)         += neo1973kbd.o
  45  obj-$(CONFIG_KEYBOARD_SPITZ)           += spitzkbd.o
  46  obj-$(CONFIG_KEYBOARD_TOSA)            += tosakbd.o
  47  obj-$(CONFIG_KEYBOARD_HIL)             += hil_kbd.o
  48 diff --git a/drivers/input/keyboard/neo1973kbd.c b/drivers/input/keyboard/neo1973kbd.c
  49 new file mode 100644
  50 index 0000000..917d5ae
  51 --- /dev/null
  52 +++ b/drivers/input/keyboard/neo1973kbd.c
  53 @@ -0,0 +1,242 @@
  54 +/*
  55 + * Keyboard driver for FIC Neo1973 GSM phone
  56 + *
  57 + * (C) 2006-2007 by OpenMoko, Inc.
  58 + * Author: Harald Welte <laforge@openmoko.org>
  59 + * All rights reserved.
  60 + *
  61 + * inspired by corkgbd.c by Richard Purdie
  62 + *
  63 + * This program is free software; you can redistribute it and/or modify
  64 + * it under the terms of the GNU General Public License version 2 as
  65 + * published by the Free Software Foundation.
  66 + *
  67 + */
  68 +
  69 +#include <linux/delay.h>
  70 +#include <linux/platform_device.h>
  71 +#include <linux/init.h>
  72 +#include <linux/input.h>
  73 +#include <linux/interrupt.h>
  74 +#include <linux/jiffies.h>
  75 +#include <linux/module.h>
  76 +#include <linux/slab.h>
  77 +
  78 +#include <asm/hardware.h>
  79 +#include <asm/arch/gta01.h>
  80 +#include <asm/mach-types.h>
  81 +
  82 +struct neo1973kbd {
  83 +       struct input_dev *input;
  84 +       unsigned int suspended;
  85 +       unsigned long suspend_jiffies;
  86 +};
  87 +
  88 +static irqreturn_t neo1973kbd_aux_irq(int irq, void *dev_id)
  89 +{
  90 +       struct neo1973kbd *neo1973kbd_data = dev_id;
  91 +
  92 +       /* FIXME: use GPIO from platform_dev resources */
  93 +       if (s3c2410_gpio_getpin(GTA01_GPIO_AUX_KEY))
  94 +               input_report_key(neo1973kbd_data->input, KEY_PHONE, 0);
  95 +       else
  96 +               input_report_key(neo1973kbd_data->input, KEY_PHONE, 1);
  97 +
  98 +       input_sync(neo1973kbd_data->input);
  99 +
 100 +       return IRQ_HANDLED;
 101 +}
 102 +
 103 +static irqreturn_t neo1973kbd_hold_irq(int irq, void *dev_id)
 104 +{
 105 +       struct neo1973kbd *neo1973kbd_data = dev_id;
 106 +
 107 +       /* FIXME: use GPIO from platform_dev resources */
 108 +       if (s3c2410_gpio_getpin(GTA01_GPIO_HOLD_KEY))
 109 +               input_report_key(neo1973kbd_data->input, KEY_PAUSE, 1);
 110 +       else
 111 +               input_report_key(neo1973kbd_data->input, KEY_PAUSE, 0);
 112 +
 113 +       input_sync(neo1973kbd_data->input);
 114 +
 115 +       return IRQ_HANDLED;
 116 +}
 117 +
 118 +static irqreturn_t neo1973kbd_headphone_irq(int irq, void *dev_id)
 119 +{
 120 +       struct neo1973kbd *neo1973kbd_data = dev_id;
 121 +
 122 +       /* FIXME: use GPIO from platform_dev resources */
 123 +       if (s3c2410_gpio_getpin(GTA01_GPIO_JACK_INSERT))
 124 +               input_report_switch(neo1973kbd_data->input,
 125 +                                   SW_HEADPHONE_INSERT, 1);
 126 +       else
 127 +               input_report_switch(neo1973kbd_data->input,
 128 +                                   SW_HEADPHONE_INSERT, 0);
 129 +
 130 +       input_sync(neo1973kbd_data->input);
 131 +
 132 +       return IRQ_HANDLED;
 133 +}
 134 +
 135 +#ifdef CONFIG_PM
 136 +static int neo1973kbd_suspend(struct platform_device *dev, pm_message_t state)
 137 +{
 138 +       struct neo1973kbd *neo1973kbd = platform_get_drvdata(dev);
 139 +
 140 +       neo1973kbd->suspended = 1;
 141 +
 142 +       return 0;
 143 +}
 144 +
 145 +static int neo1973kbd_resume(struct platform_device *dev)
 146 +{
 147 +       struct neo1973kbd *neo1973kbd = platform_get_drvdata(dev);
 148 +
 149 +       neo1973kbd->suspended = 0;
 150 +
 151 +       return 0;
 152 +}
 153 +#else
 154 +#define neo1973kbd_suspend     NULL
 155 +#define neo1973kbd_resume      NULL
 156 +#endif
 157 +
 158 +static int neo1973kbd_probe(struct platform_device *pdev)
 159 +{
 160 +       struct neo1973kbd *neo1973kbd;
 161 +       struct input_dev *input_dev;
 162 +       int rc, irq_aux, irq_hold, irq_jack;
 163 +
 164 +       neo1973kbd = kzalloc(sizeof(struct neo1973kbd), GFP_KERNEL);
 165 +       input_dev = input_allocate_device();
 166 +       if (!neo1973kbd || !input_dev) {
 167 +               kfree(neo1973kbd);
 168 +               input_free_device(input_dev);
 169 +               return -ENOMEM;
 170 +       }
 171 +
 172 +       if (pdev->resource[0].flags != 0)
 173 +               return -EINVAL;
 174 +
 175 +       irq_aux = s3c2410_gpio_getirq(pdev->resource[0].start);
 176 +       if (irq_aux < 0)
 177 +               return -EINVAL;
 178 +
 179 +       irq_hold = s3c2410_gpio_getirq(pdev->resource[1].start);
 180 +       if (irq_hold < 0)
 181 +               return -EINVAL;
 182 +
 183 +       irq_jack = s3c2410_gpio_getirq(pdev->resource[2].start);
 184 +       if (irq_jack < 0)
 185 +               return -EINVAL;
 186 +
 187 +       platform_set_drvdata(pdev, neo1973kbd);
 188 +
 189 +       neo1973kbd->input = input_dev;
 190 +
 191 +       input_dev->name = "Neo1973 Buttons";
 192 +       input_dev->phys = "neo1973kbd/input0";
 193 +       input_dev->id.bustype = BUS_HOST;
 194 +       input_dev->id.vendor = 0x0001;
 195 +       input_dev->id.product = 0x0001;
 196 +       input_dev->id.version = 0x0100;
 197 +       input_dev->cdev.dev = &pdev->dev;
 198 +       input_dev->private = neo1973kbd;
 199 +
 200 +       input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_SW);
 201 +       set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
 202 +       set_bit(KEY_PHONE, input_dev->keybit);
 203 +       set_bit(KEY_PAUSE, input_dev->keybit);
 204 +
 205 +       rc = input_register_device(neo1973kbd->input);
 206 +       if (rc)
 207 +               goto out_register;
 208 +
 209 +       if (request_irq(irq_aux, neo1973kbd_aux_irq, IRQF_DISABLED |
 210 +                       IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 211 +                       "Neo1973 AUX button", neo1973kbd)) {
 212 +               dev_err(&pdev->dev, "Can't get IRQ %u\n", irq_aux);
 213 +               goto out_aux;
 214 +       }
 215 +
 216 +       /*
 217 +        * GTA01 revisions before Bv4 can't be resumed by the PMU, so we use
 218 +        * resume by AUX.
 219 +        */
 220 +       if (machine_is_neo1973_gta01())
 221 +               enable_irq_wake(irq_aux);
 222 +
 223 +       if (request_irq(irq_hold, neo1973kbd_hold_irq, IRQF_DISABLED |
 224 +                       IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 225 +                       "Neo1973 HOLD button", neo1973kbd)) {
 226 +               dev_err(&pdev->dev, "Can't get IRQ %u\n", irq_hold);
 227 +               goto out_hold;
 228 +       }
 229 +
 230 +       if (request_irq(irq_jack, neo1973kbd_headphone_irq, IRQF_DISABLED |
 231 +                       IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 232 +                       "Neo1973 Headphone Jack", neo1973kbd)) {
 233 +               dev_err(&pdev->dev, "Can't get IRQ %u\n", irq_jack);
 234 +               goto out_jack;
 235 +       }
 236 +       enable_irq_wake(irq_jack);
 237 +
 238 +       return 0;
 239 +
 240 +out_jack:
 241 +       free_irq(irq_hold, neo1973kbd);
 242 +out_hold:
 243 +       free_irq(irq_aux, neo1973kbd);
 244 +out_aux:
 245 +       input_unregister_device(neo1973kbd->input);
 246 +out_register:
 247 +       input_free_device(neo1973kbd->input);
 248 +       platform_set_drvdata(pdev, NULL);
 249 +       kfree(neo1973kbd);
 250 +
 251 +       return -ENODEV;
 252 +}
 253 +
 254 +static int neo1973kbd_remove(struct platform_device *pdev)
 255 +{
 256 +       struct neo1973kbd *neo1973kbd = platform_get_drvdata(pdev);
 257 +
 258 +       free_irq(s3c2410_gpio_getirq(pdev->resource[2].start), neo1973kbd);
 259 +       free_irq(s3c2410_gpio_getirq(pdev->resource[1].start), neo1973kbd);
 260 +       free_irq(s3c2410_gpio_getirq(pdev->resource[0].start), neo1973kbd);
 261 +
 262 +       input_unregister_device(neo1973kbd->input);
 263 +       input_free_device(neo1973kbd->input);
 264 +       platform_set_drvdata(pdev, NULL);
 265 +       kfree(neo1973kbd);
 266 +
 267 +       return 0;
 268 +}
 269 +
 270 +static struct platform_driver neo1973kbd_driver = {
 271 +       .probe          = neo1973kbd_probe,
 272 +       .remove         = neo1973kbd_remove,
 273 +       .suspend        = neo1973kbd_suspend,
 274 +       .resume         = neo1973kbd_resume,
 275 +       .driver         = {
 276 +               .name   = "neo1973-button",
 277 +       },
 278 +};
 279 +
 280 +static int __devinit neo1973kbd_init(void)
 281 +{
 282 +       return platform_driver_register(&neo1973kbd_driver);
 283 +}
 284 +
 285 +static void __exit neo1973kbd_exit(void)
 286 +{
 287 +       platform_driver_unregister(&neo1973kbd_driver);
 288 +}
 289 +
 290 +module_init(neo1973kbd_init);
 291 +module_exit(neo1973kbd_exit);
 292 +
 293 +MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
 294 +MODULE_DESCRIPTION("FIC Neo1973 buttons input driver");
 295 +MODULE_LICENSE("GPL");
 296 --
 297 1.5.6.3
 298