lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

leds: Update Cobalt Qube series front LED support

Browse Source 
Update Cobalt Qube series front LED support.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
This commit is contained in:
Yoichi Yuasa
2007-09-27 17:51:17 +09:00
committed by Richard Purdie
parent 97da7aaf46
commit 4276fd7349
1 changed files with 78 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

97
drivers/leds/leds-cobalt-qube.c
View File

@@ -3,40 +3,99 @@
* *
* Control the Cobalt Qube/RaQ front LED * Control the Cobalt Qube/RaQ front LED
*/ */
#include <linux/init.h>
#include <linux/module.h> #include <linux/io.h>
#include <linux/types.h> #include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/leds.h> #include <linux/leds.h>
#include <asm/mach-cobalt/cobalt.h> #include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/types.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) if (brightness)
COBALT_LED_PORT = COBALT_LED_BAR_LEFT | COBALT_LED_BAR_RIGHT; led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
else else
COBALT_LED_PORT = 0; led_value = ~(LED_FRONT_LEFT | LED_FRONT_RIGHT);
writeb(led_value, led_port);
} }
static struct led_classdev cobalt_led = { static struct led_classdev qube_front_led = {
.name = "cobalt-front-led", .name = "qube-front",
.brightness_set = cobalt_led_set, .brightness = LED_FULL,
.default_trigger = "ide-disk", .brightness_set = qube_front_led_set,
.default_trigger = "ide-disk",
}; };
static int __init cobalt_led_init(void) static int __devinit cobalt_qube_led_probe(struct platform_device *pdev)
{ {
return led_classdev_register(NULL, &cobalt_led); 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 void __exit cobalt_led_exit(void) static int __devexit cobalt_qube_led_remove(struct platform_device *pdev)
{ {
led_classdev_unregister(&cobalt_led); led_classdev_unregister(&qube_front_led);
if (led_port) {
iounmap(led_port);
led_port = NULL;
}
return 0;
} }
module_init(cobalt_led_init); static struct platform_driver cobalt_qube_led_driver = {
module_exit(cobalt_led_exit); .probe = cobalt_qube_led_probe,
.remove = __devexit_p(cobalt_qube_led_remove),
.driver = {
.name = "cobalt-qube-leds",
.owner = THIS_MODULE,
},
};
static int __init cobalt_qube_led_init(void)
{
return platform_driver_register(&cobalt_qube_led_driver);
}
static void __exit cobalt_qube_led_exit(void)
{
platform_driver_unregister(&cobalt_qube_led_driver);
}
module_init(cobalt_qube_led_init);
module_exit(cobalt_qube_led_exit);
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Front LED support for Cobalt Server"); MODULE_DESCRIPTION("Front LED support for Cobalt Server");