arch/arm/mach-pxa/hx4700/hx4700_leds.c

   1 /*
   2  * LEDs support for the HP iPaq hx4700
   3  *
   4  * Copyright (c) 2006  Anton Vorontsov <cbou@mail.ru>
   5  *
   6  * This file is subject to the terms and conditions of the GNU General Public
   7  * License.  See the file COPYING in the main directory of this archive for
   8  * more details.
   9  *
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/leds.h>
  16
  17 #include <asm/hardware/ipaq-asic3.h>
  18 #include <linux/soc/asic3_base.h>
  19 #include <asm/mach-types.h>
  20 #include <asm/arch/ipaq.h>
  21 #include <asm/hardware/asic3_leds.h>
  22
  23 DEFINE_LED_TRIGGER_SHARED_GLOBAL(hx4700_radio_trig);
  24 EXPORT_LED_TRIGGER_SHARED(hx4700_radio_trig);
  25
  26 extern struct platform_device hx4700_asic3;
  27
  28 struct asic3_led hx4700_leds[] = {
  29         {
  30                 .led_cdev  = {
  31                         .name           = "hx4700:amber",
  32                         .default_trigger = "hx4700-charging",
  33                 },
  34                 .hw_num = 0,
  35
  36         },
  37         {
  38                 .led_cdev  = {
  39                         .name            = "hx4700:green",
  40                         .default_trigger = "hx4700-chargefull",
  41                 },
  42                 .hw_num = 1,
  43         },
  44         {
  45                 .led_cdev  = {
  46                         .name            = "hx4700:blue",
  47                         .default_trigger = "hx4700-radio",
  48                 },
  49                 .hw_num = 2,
  50         },
  51 };
  52
  53 void hx4700_leds_release(struct device *dev)
  54 {
  55         return;
  56 }
  57
  58 static
  59 struct asic3_leds_machinfo hx4700_leds_machinfo = {
  60         .num_leds = ARRAY_SIZE(hx4700_leds),
  61         .leds = hx4700_leds,
  62         .asic3_pdev = &hx4700_asic3,
  63 };
  64
  65 static
  66 struct platform_device hx4700_leds_pdev = {
  67         .name = "asic3-leds",
  68         .dev = {
  69                 .platform_data = &hx4700_leds_machinfo,
  70                 .release = hx4700_leds_release,
  71         },
  72 };
  73
  74 static
  75 int __init hx4700_leds_init(void)
  76 {
  77         int ret;
  78         printk("hx4700 LEDs Driver\n");
  79         led_trigger_register_shared("hx4700-radio", &hx4700_radio_trig);
  80
  81         ret = asic3_leds_register();
  82         if (ret) goto asic3_leds_failed;
  83
  84         ret = platform_device_register(&hx4700_leds_pdev);
  85         if (ret) goto platform_device_failed;
  86
  87         goto success;
  88
  89 platform_device_failed:
  90         asic3_leds_unregister();
  91 asic3_leds_failed:
  92         led_trigger_unregister_shared(hx4700_radio_trig);
  93         printk("hx4700 LEDs Driver failed to init");
  94 success:
  95         return ret;
  96 }
  97
  98 static
  99 void __exit hx4700_leds_exit(void)
 100 {
 101         led_trigger_unregister_shared(hx4700_radio_trig);
 102         platform_device_unregister(&hx4700_leds_pdev);
 103         asic3_leds_unregister();
 104         return;
 105 }
 106
 107 module_init(hx4700_leds_init);
 108 module_exit(hx4700_leds_exit);
 109
 110 MODULE_AUTHOR("Anton Vorontsov <cbou@mail.ru>");
 111 MODULE_DESCRIPTION("HP iPAQ hx4700 LEDs driver");
 112 MODULE_LICENSE("GPL");