diff options
| -rw-r--r-- | drivers/leds/leds-cobalt-qube.c | 95 |
1 files changed, 77 insertions, 18 deletions
diff --git a/drivers/leds/leds-cobalt-qube.c b/drivers/leds/leds-cobalt-qube.c index d16439ce5da..d2b54b53d80 100644 --- a/drivers/leds/leds-cobalt-qube.c +++ b/drivers/leds/leds-cobalt-qube.c @@ -3,40 +3,99 @@ * * Control the Cobalt Qube/RaQ front LED */ - +#include <linux/init.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/leds.h> #include <linux/module.h> +#include <linux/platform_device.h> #include <linux/types.h> -#include <linux/kernel.h> -#include <linux/device.h> -#include <linux/leds.h> -#include <asm/mach-cobalt/cobalt.h> -static void cobalt_led_set(struct led_classdev *led_cdev, enum led_brightness brightness) +#define LED_FRONT_LEFT 0x01 +#define LED_FRONT_RIGHT 0x02 + +static void __iomem *led_port; +static u8 led_value; + +static void qube_front_led_set(struct led_classdev *led_cdev, + enum led_brightness brightness) { if (brightness) - COBALT_LED_PORT = COBALT_LED_BAR_LEFT | COBALT_LED_BAR_RIGHT; + led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT; else - COBALT_LED_PORT = 0; + led_value = ~(LED_FRONT_LEFT | LED_FRONT_RIGHT); + writeb(led_value, led_port); +} + +static struct led_classdev qube_front_led = { + .name = "qube-front", + .brightness = LED_FULL, + .brightness_set = qube_front_led_set, + .default_trigger = "ide-disk", +}; + +static int __devinit cobalt_qube_led_probe(struct platform_device *pdev) +{ + struct resource *res; + int retval; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EBUSY; + + led_port = ioremap(res->start, res->end - res->start + 1); + if (!led_port) + return -ENOMEM; + + led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT; + writeb(led_value, led_port); + + retval = led_classdev_register(&pdev->dev, &qube_front_led); + if (retval) + goto err_iounmap; + + return 0; + +err_iounmap: + iounmap(led_port); + led_port = NULL; + + return retval; +} + +static int __devexit cobalt_qube_led_remove(struct platform_device *pdev) +{ + led_classdev_unregister(&qube_front_led); + + if (led_port) { + iounmap(led_port); + led_port = NULL; + } + + return 0; } -static struct led_classdev cobalt_led = { - .name = "cobalt-front-led", - .brightness_set = cobalt_led_set, - .default_trigger = "ide-disk", +static struct platform_driver cobalt_qube_led_driver = { + .probe = cobalt_qube_led_probe, + .remove = __devexit_p(cobalt_qube_led_remove), + .driver = { + .name = "cobalt-qube-leds", + .owner = THIS_MODULE, + }, }; -static int __init cobalt_led_init(void) +static int __init cobalt_qube_led_init(void) { - return led_classdev_register(NULL, &cobalt_led); + return platform_driver_register(&cobalt_qube_led_driver); } -static void __exit cobalt_led_exit(void) +static void __exit cobalt_qube_led_exit(void) { - led_classdev_unregister(&cobalt_led); + platform_driver_unregister(&cobalt_qube_led_driver); } -module_init(cobalt_led_init); -module_exit(cobalt_led_exit); +module_init(cobalt_qube_led_init); +module_exit(cobalt_qube_led_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Front LED support for Cobalt Server"); |