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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /drivers/leds/leds-cobalt-qube.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'drivers/leds/leds-cobalt-qube.c')
-rw-r--r-- | drivers/leds/leds-cobalt-qube.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/leds/leds-cobalt-qube.c b/drivers/leds/leds-cobalt-qube.c new file mode 100644 index 00000000..6a8725cc --- /dev/null +++ b/drivers/leds/leds-cobalt-qube.c @@ -0,0 +1,92 @@ +/* + * Copyright 2006 - Florian Fainelli <florian@openwrt.org> + * + * 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> + +#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) + led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT; + else + 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 = "default-on", +}; + +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, resource_size(res)); + 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 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, + }, +}; + +module_platform_driver(cobalt_qube_led_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Front LED support for Cobalt Server"); +MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); +MODULE_ALIAS("platform:cobalt-qube-leds"); |