arch/arm/mach-pxa/h4000/h4000_leds.c

   1 /*
   2  * LEDs support for the HP iPaq h4000
   3  *
   4  * Copyright (c) 2006  Anton Vorontsov <cbou@mail.ru>
   5  * Copyright (c) 2006  Paul Sokolovsky <pmiscml@gmail.com>
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file COPYING in the main directory of this archive for
   9  * more details.
  10  *
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/leds.h>
  17
  18 #include <asm/hardware/ipaq-asic3.h>
  19 #include <linux/soc/asic3_base.h>
  20 #include <asm/mach-types.h>
  21 #include <asm/arch/ipaq.h>
  22 #include <asm/hardware/asic3_leds.h>
  23
  24 DEFINE_LED_TRIGGER_SHARED_GLOBAL(h4000_radio_trig);
  25 EXPORT_LED_TRIGGER_SHARED(h4000_radio_trig);
  26
  27 extern struct platform_device h4000_asic3;
  28
  29 struct asic3_led h4000_leds[] = {
  30         {
  31                 .led_cdev  = {
  32                         .name           = "h4000:red",
  33                         .default_trigger = "h4000-charging",
  34                 },
  35                 .hw_num = 0,
  36
  37         },
  38         {
  39                 .led_cdev  = {
  40                         .name            = "h4000:right-green",
  41                         .default_trigger = "h4000-chargefull",
  42                 },
  43                 .hw_num = 1,
  44         },
  45         {
  46                 .led_cdev  = {
  47                         .name            = "h4000:left-green",
  48                         .default_trigger = "h4000-wifi",
  49                 },
  50                 .hw_num = -1,
  51                 .gpio_num = 4,
  52         },
  53         {
  54                 .led_cdev  = {
  55                         .name            = "h4000:blue",
  56                         .default_trigger = "h4000-bt",
  57                 },
  58                 .hw_num = -1,
  59                 .gpio_num = 5,
  60         },
  61 };
  62
  63 void h4000_leds_release(struct device *dev)
  64 {
  65         return;
  66 }
  67
  68 static
  69 struct asic3_leds_machinfo h4000_leds_machinfo = {
  70         .num_leds = ARRAY_SIZE(h4000_leds),
  71         .leds = h4000_leds,
  72         .asic3_pdev = &h4000_asic3,
  73 };
  74
  75 static
  76 struct platform_device h4000_leds_pdev = {
  77         .name = "asic3-leds",
  78         .dev = {
  79                 .platform_data = &h4000_leds_machinfo,
  80                 .release = h4000_leds_release,
  81         },
  82 };
  83
  84 static
  85 int __init h4000_leds_init(void)
  86 {
  87         int ret;
  88         printk("h4000 LEDs Driver\n");
  89         led_trigger_register_shared("h4000-radio", &h4000_radio_trig);
  90
  91         ret = asic3_leds_register();
  92         if (ret) goto asic3_leds_failed;
  93
  94         ret = platform_device_register(&h4000_leds_pdev);
  95         if (ret) goto platform_device_failed;
  96
  97         goto success;
  98
  99 platform_device_failed:
 100         asic3_leds_unregister();
 101 asic3_leds_failed:
 102         led_trigger_unregister_shared(h4000_radio_trig);
 103         printk("h4000 LEDs Driver failed to init");
 104 success:
 105         return ret;
 106 }
 107
 108 static
 109 void __exit h4000_leds_exit(void)
 110 {
 111         led_trigger_unregister_shared(h4000_radio_trig);
 112         platform_device_unregister(&h4000_leds_pdev);
 113         asic3_leds_unregister();
 114         return;
 115 }
 116
 117 module_init(h4000_leds_init);
 118 module_exit(h4000_leds_exit);
 119
 120 MODULE_AUTHOR("Paul Sokolovsky <pmiscml@gmail.com>");
 121 MODULE_DESCRIPTION("HP iPAQ h4000 LEDs driver");
 122 MODULE_LICENSE("GPL");