target/linux/s3c24xx/patches/0043-s3c2410-qt2410-buttons.patch.patch

   1 From a63a227ece28df06d4c8f04eec51c7649ef28aea Mon Sep 17 00:00:00 2001
   2 From: mokopatches <mokopatches@openmoko.org>
   3 Date: Fri, 25 Jul 2008 22:21:22 +0100
   4 Subject: [PATCH] s3c2410-qt2410-buttons.patch
   5
   6 ---
   7  arch/arm/mach-s3c2410/mach-qt2410.c |   18 +++
   8  drivers/input/keyboard/Kconfig      |    5 +
   9  drivers/input/keyboard/Makefile     |    1 +
  10  drivers/input/keyboard/qt2410kbd.c  |  233 +++++++++++++++++++++++++++++++++++
  11  4 files changed, 257 insertions(+), 0 deletions(-)
  12  create mode 100644 drivers/input/keyboard/qt2410kbd.c
  13
  14 diff --git a/arch/arm/mach-s3c2410/mach-qt2410.c b/arch/arm/mach-s3c2410/mach-qt2410.c
  15 index 6f7b56d..daf94cd 100644
  16 --- a/arch/arm/mach-s3c2410/mach-qt2410.c
  17 +++ b/arch/arm/mach-s3c2410/mach-qt2410.c
  18 @@ -321,6 +321,24 @@ static int __init qt2410_tft_setup(char *str)
  19
  20  __setup("tft=", qt2410_tft_setup);
  21
  22 +static struct resource qt2410_button_resources[] = {
  23 +       [0] = {
  24 +               .start = S3C2410_GPF0,
  25 +               .end   = S3C2410_GPF0,
  26 +       },
  27 +       [1] = {
  28 +               .start = S3C2410_GPF2,
  29 +               .end   = S3C2410_GPF2,
  30 +       },
  31 +};
  32 +
  33 +struct platform_device qt2410_button_dev = {
  34 +       .name           ="qt2410-button",
  35 +       .num_resources  = ARRAY_SIZE(qt2410_button_resources),
  36 +       .resource       = qt2410_button_resources,
  37 +};
  38 +
  39 +
  40  static void __init qt2410_map_io(void)
  41  {
  42         s3c24xx_init_io(qt2410_iodesc, ARRAY_SIZE(qt2410_iodesc));
  43 diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
  44 index b8ecca9..bc7aac3 100644
  45 --- a/drivers/input/keyboard/Kconfig
  46 +++ b/drivers/input/keyboard/Kconfig
  47 @@ -334,5 +334,10 @@ config KEYBOARD_NEO1973
  48           To compile this driver as a module, choose M here: the
  49           module will be called neo1973kbd.
  50
  51 +config KEYBOARD_QT2410
  52 +       tristate "QT2410 buttons"
  53 +       depends on MACH_QT2410
  54 +       default y
  55 +
  56
  57  endif
  58 diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
  59 index b3aa339..63a8972 100644
  60 --- a/drivers/input/keyboard/Makefile
  61 +++ b/drivers/input/keyboard/Makefile
  62 @@ -15,6 +15,7 @@ obj-$(CONFIG_KEYBOARD_NEWTON)         += newtonkbd.o
  63  obj-$(CONFIG_KEYBOARD_STOWAWAY)                += stowaway.o
  64  obj-$(CONFIG_KEYBOARD_CORGI)           += corgikbd.o
  65  obj-$(CONFIG_KEYBOARD_NEO1973)         += neo1973kbd.o
  66 +obj-$(CONFIG_KEYBOARD_QT2410)          += qt2410kbd.o
  67  obj-$(CONFIG_KEYBOARD_SPITZ)           += spitzkbd.o
  68  obj-$(CONFIG_KEYBOARD_TOSA)            += tosakbd.o
  69  obj-$(CONFIG_KEYBOARD_HIL)             += hil_kbd.o
  70 diff --git a/drivers/input/keyboard/qt2410kbd.c b/drivers/input/keyboard/qt2410kbd.c
  71 new file mode 100644
  72 index 0000000..4d497a3
  73 --- /dev/null
  74 +++ b/drivers/input/keyboard/qt2410kbd.c
  75 @@ -0,0 +1,233 @@
  76 +/*
  77 + * Keyboard driver for Armzone QT2410
  78 + *
  79 + * (C) 2006 by OpenMoko, Inc.
  80 + * Author: Harald Welte <laforge@openmoko.org>
  81 + * All rights reserved.
  82 + *
  83 + * This program is free software; you can redistribute it and/or modify
  84 + * it under the terms of the GNU General Public License version 2 as
  85 + * published by the Free Software Foundation.
  86 + *
  87 + */
  88 +
  89 +#include <linux/delay.h>
  90 +#include <linux/platform_device.h>
  91 +#include <linux/init.h>
  92 +#include <linux/input.h>
  93 +#include <linux/interrupt.h>
  94 +#include <linux/jiffies.h>
  95 +#include <linux/module.h>
  96 +#include <linux/slab.h>
  97 +
  98 +#include <asm/hardware.h>
  99 +#include <asm/arch/gta01.h>
 100 +
 101 +struct gta01kbd {
 102 +       struct input_dev *input;
 103 +       unsigned int suspended;
 104 +       unsigned long suspend_jiffies;
 105 +};
 106 +
 107 +static irqreturn_t gta01kbd_interrupt(int irq, void *dev_id)
 108 +{
 109 +       struct gta01kbd *gta01kbd_data = dev_id;
 110 +
 111 +       /* FIXME: use GPIO from platform_dev resources */
 112 +       if (s3c2410_gpio_getpin(S3C2410_GPF0))
 113 +               input_report_key(gta01kbd_data->input, KEY_PHONE, 1);
 114 +       else
 115 +               input_report_key(gta01kbd_data->input, KEY_PHONE, 0);
 116 +
 117 +       input_sync(gta01kbd_data->input);
 118 +
 119 +       return IRQ_HANDLED;
 120 +}
 121 +
 122 +
 123 +#ifdef CONFIG_PM
 124 +static int gta01kbd_suspend(struct platform_device *dev, pm_message_t state)
 125 +{
 126 +       struct gta01kbd *gta01kbd = platform_get_drvdata(dev);
 127 +
 128 +       gta01kbd->suspended = 1;
 129 +
 130 +       return 0;
 131 +}
 132 +
 133 +static int gta01kbd_resume(struct platform_device *dev)
 134 +{
 135 +       struct gta01kbd *gta01kbd = platform_get_drvdata(dev);
 136 +
 137 +       gta01kbd->suspended = 0;
 138 +
 139 +       return 0;
 140 +}
 141 +#else
 142 +#define gta01kbd_suspend       NULL
 143 +#define gta01kbd_resume                NULL
 144 +#endif
 145 +
 146 +static int gta01kbd_probe(struct platform_device *pdev)
 147 +{
 148 +       struct gta01kbd *gta01kbd;
 149 +       struct input_dev *input_dev;
 150 +       int irq_911;
 151 +       int rc = 0;
 152 +
 153 +       gta01kbd = kzalloc(sizeof(struct gta01kbd), GFP_KERNEL);
 154 +       if (!gta01kbd) {
 155 +               rc = -ENOMEM;
 156 +               goto bail;
 157 +       }
 158 +       input_dev = input_allocate_device();
 159 +       if (!gta01kbd || !input_dev) {
 160 +               rc = -ENOMEM;
 161 +               goto bail_free;
 162 +       }
 163 +
 164 +       if (pdev->resource[0].flags != 0) {\
 165 +               rc = -EINVAL;
 166 +               goto bail_free_dev;
 167 +       }
 168 +
 169 +       irq_911 = s3c2410_gpio_getirq(pdev->resource[0].start);
 170 +       if (irq_911 < 0) {
 171 +               rc = -EINVAL;
 172 +               goto bail_free_dev;
 173 +       }
 174 +
 175 +       platform_set_drvdata(pdev, gta01kbd);
 176 +
 177 +       gta01kbd->input = input_dev;
 178 +
 179 +#if 0
 180 +       spin_lock_init(&gta01kbd->lock);
 181 +       /* Init Keyboard rescan timer */
 182 +       init_timer(&corgikbd->timer);
 183 +       corgikbd->timer.function = corgikbd_timer_callback;
 184 +       corgikbd->timer.data = (unsigned long) corgikbd;
 185 +
 186 +       /* Init Hinge Timer */
 187 +       init_timer(&corgikbd->htimer);
 188 +       corgikbd->htimer.function = corgikbd_hinge_timer;
 189 +       corgikbd->htimer.data = (unsigned long) corgikbd;
 190 +
 191 +       corgikbd->suspend_jiffies=jiffies;
 192 +
 193 +       memcpy(corgikbd->keycode, corgikbd_keycode, sizeof(corgikbd->keycode));
 194 +#endif
 195 +
 196 +       input_dev->name = "QT2410 Buttons";
 197 +       input_dev->phys = "qt2410kbd/input0";
 198 +       input_dev->id.bustype = BUS_HOST;
 199 +       input_dev->id.vendor = 0x0001;
 200 +       input_dev->id.product = 0x0001;
 201 +       input_dev->id.version = 0x0100;
 202 +       input_dev->cdev.dev = &pdev->dev;
 203 +       input_dev->private = gta01kbd;
 204 +
 205 +       input_dev->evbit[0] = BIT(EV_KEY);
 206 +#if 0
 207 +       input_dev->keycode = gta01kbd->keycode;
 208 +       input_dev->keycodesize = sizeof(unsigned char);
 209 +       input_dev->keycodemax = ARRAY_SIZE(corgikbd_keycode);
 210 +
 211 +       for (i = 0; i < ARRAY_SIZE(corgikbd_keycode); i++)
 212 +               set_bit(corgikbd->keycode[i], input_dev->keybit);
 213 +       clear_bit(0, input_dev->keybit);
 214 +       set_bit(SW_LID, input_dev->swbit);
 215 +       set_bit(SW_TABLET_MODE, input_dev->swbit);
 216 +       set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
 217 +#endif
 218 +
 219 +       rc = input_register_device(gta01kbd->input);
 220 +       if (rc)
 221 +               goto bail_free_dev;
 222 +
 223 +       s3c2410_gpio_cfgpin(S3C2410_GPF0, S3C2410_GPF0_EINT0);
 224 +       if (request_irq(irq_911, gta01kbd_interrupt,
 225 +                       IRQF_DISABLED | IRQF_TRIGGER_RISING |
 226 +                       IRQF_TRIGGER_FALLING, "qt2410kbd_eint0", gta01kbd))
 227 +               printk(KERN_WARNING "gta01kbd: Can't get IRQ\n");
 228 +       enable_irq_wake(irq_911);
 229 +
 230 +       /* FIXME: headphone insert */
 231 +
 232 +#if 0
 233 +       mod_timer(&corgikbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
 234 +
 235 +       /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
 236 +       for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) {
 237 +               pxa_gpio_mode(CORGI_GPIO_KEY_SENSE(i) | GPIO_IN);
 238 +               if (request_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd_interrupt,
 239 +                               SA_INTERRUPT | SA_TRIGGER_RISING,
 240 +                               "corgikbd", corgikbd))
 241 +                       printk(KERN_WARNING "corgikbd: Can't get IRQ: %d!\n", i);
 242 +       }
 243 +
 244 +       /* Set Strobe lines as outputs - set high */
 245 +       for (i = 0; i < CORGI_KEY_STROBE_NUM; i++)
 246 +               pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH);
 247 +
 248 +       /* Setup the headphone jack as an input */
 249 +       pxa_gpio_mode(CORGI_GPIO_AK_INT | GPIO_IN);
 250 +#endif
 251 +
 252 +       return 0;
 253 +
 254 +bail_free_dev:
 255 +       input_free_device(input_dev);
 256 +bail_free:
 257 +       kfree(gta01kbd);
 258 +bail:
 259 +       return rc;
 260 +}
 261 +
 262 +static int gta01kbd_remove(struct platform_device *pdev)
 263 +{
 264 +       struct gta01kbd *gta01kbd = platform_get_drvdata(pdev);
 265 +
 266 +       free_irq(s3c2410_gpio_getirq(pdev->resource[0].start), gta01kbd);
 267 +#if 0
 268 +       int i;
 269 +
 270 +       for (i = 0; i < CORGI_KEY_SENSE_NUM; i++)
 271 +               free_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd);
 272 +
 273 +       del_timer_sync(&corgikbd->htimer);
 274 +       del_timer_sync(&corgikbd->timer);
 275 +#endif
 276 +       input_unregister_device(gta01kbd->input);
 277 +
 278 +       kfree(gta01kbd);
 279 +
 280 +       return 0;
 281 +}
 282 +
 283 +static struct platform_driver gta01kbd_driver = {
 284 +       .probe          = gta01kbd_probe,
 285 +       .remove         = gta01kbd_remove,
 286 +       .suspend        = gta01kbd_suspend,
 287 +       .resume         = gta01kbd_resume,
 288 +       .driver         = {
 289 +               .name   = "qt2410-button",
 290 +       },
 291 +};
 292 +
 293 +static int __devinit gta01kbd_init(void)
 294 +{
 295 +       return platform_driver_register(&gta01kbd_driver);
 296 +}
 297 +
 298 +static void __exit gta01kbd_exit(void)
 299 +{
 300 +       platform_driver_unregister(&gta01kbd_driver);
 301 +}
 302 +
 303 +module_init(gta01kbd_init);
 304 +module_exit(gta01kbd_exit);
 305 +
 306 +MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
 307 +MODULE_DESCRIPTION("Armzone QT2410 Buttons Driver");
 308 +MODULE_LICENSE("GPL");
 309 --
 310 1.5.6.3
 311