/* * 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, }, }; static int __init rb532_led_init(void) { return platform_driver_register(&rb532_led_driver); } static void __exit rb532_led_exit(void) { platform_driver_unregister(&rb532_led_driver); } module_init(rb532_led_init); module_exit(rb532_led_exit); MODULE_ALIAS("platform:rb532-led"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("User LED support for Routerboard532"); MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");