| /* |
| * LEDs driver for the "User LED" on Routerboard532 |
| * |
| * Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org> |
| * |
| * Based on leds-cobalt-qube.c by Florian Fainelly and |
| * rb-diag.c (my own standalone driver for both LED and |
| * button of Routerboard532). |
| */ |
| |
| #include <linux/leds.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| |
| #include <asm/mach-rc32434/gpio.h> |
| #include <asm/mach-rc32434/rb.h> |
| |
| static void rb532_led_set(struct led_classdev *cdev, |
| enum led_brightness brightness) |
| { |
| if (brightness) |
| set_latch_u5(LO_ULED, 0); |
| |
| else |
| set_latch_u5(0, LO_ULED); |
| } |
| |
| static enum led_brightness rb532_led_get(struct led_classdev *cdev) |
| { |
| return (get_latch_u5() & LO_ULED) ? LED_FULL : LED_OFF; |
| } |
| |
| static struct led_classdev rb532_uled = { |
| .name = "uled", |
| .brightness_set = rb532_led_set, |
| .brightness_get = rb532_led_get, |
| .default_trigger = "nand-disk", |
| }; |
| |
| static int __devinit rb532_led_probe(struct platform_device *pdev) |
| { |
| return led_classdev_register(&pdev->dev, &rb532_uled); |
| } |
| |
| static int __devexit rb532_led_remove(struct platform_device *pdev) |
| { |
| led_classdev_unregister(&rb532_uled); |
| return 0; |
| } |
| |
| static struct platform_driver rb532_led_driver = { |
| .probe = rb532_led_probe, |
| .remove = __devexit_p(rb532_led_remove), |
| .driver = { |
| .name = "rb532-led", |
| .owner = THIS_MODULE, |
| }, |
| }; |
| |
| module_platform_driver(rb532_led_driver); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_DESCRIPTION("User LED support for Routerboard532"); |
| MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>"); |
| MODULE_ALIAS("platform:rb532-led"); |