diff options
Diffstat (limited to 'target/linux/au1000/files/drivers/leds/leds-mtx1.c')
-rw-r--r-- | target/linux/au1000/files/drivers/leds/leds-mtx1.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/target/linux/au1000/files/drivers/leds/leds-mtx1.c b/target/linux/au1000/files/drivers/leds/leds-mtx1.c new file mode 100644 index 0000000000..4c2ab55fc3 --- /dev/null +++ b/target/linux/au1000/files/drivers/leds/leds-mtx1.c @@ -0,0 +1,101 @@ +/* + * LED driver for MTX-1 boards + * + * Copyright 2007 Florian Fainelli <florian@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <linux/err.h> +#include <asm/gpio.h> + +static struct platform_device *pdev; + +static void mtx1_led_set(struct led_classdev *led_cdev, enum led_brightness brightness) +{ + if (!strcmp("mtx1:green", led_cdev->name)) + gpio_set_value(211, brightness ? 1 : 0); + else + gpio_set_value(212, brightness ? 1 : 0); +} + +static struct led_classdev mtx1_green_led = { + .name = "mtx1:green", + .brightness_set = mtx1_led_set, +}; + +static struct led_classdev mtx1_red_led = { + .name = "mtx1:red", + .brightness_set = mtx1_led_set, +}; + +static int mtx1_leds_probe(struct platform_device *pdev) +{ + int ret; + + ret = led_classdev_register(&pdev->dev, &mtx1_green_led); + if (ret < 0) + goto out; + + ret = led_classdev_register(&pdev->dev, &mtx1_red_led); + if (ret < 0) + led_classdev_unregister(&mtx1_green_led); + +out: + return ret; +} + +static int mtx1_leds_remove(struct platform_device *pdev) +{ + led_classdev_unregister(&mtx1_green_led); + led_classdev_unregister(&mtx1_red_led); + return 0; +} + +static struct platform_driver mtx1_leds_driver = { + .probe = mtx1_leds_probe, + .remove = mtx1_leds_remove, + .driver = { + .name = "mtx1-leds", + } +}; + +static int __init mtx1_leds_init(void) +{ + int ret; + + ret = platform_driver_register(&mtx1_leds_driver); + if (ret < 0) + goto out; + + pdev = platform_device_register_simple("mtx1-leds", -1, NULL, 0); + if (IS_ERR(pdev)) { + ret = PTR_ERR(pdev); + platform_driver_unregister(&mtx1_leds_driver); + goto out; + } + +out: + return ret; + +} + +static void __exit mtx1_leds_exit(void) +{ + platform_device_unregister(pdev); + platform_driver_unregister(&mtx1_leds_driver); +} + +module_init(mtx1_leds_init); +module_exit(mtx1_leds_exit); + +MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); +MODULE_DESCRIPTION("MTX-1 LED driver"); +MODULE_LICENSE("GPL"); |