2 * Copyright 2006 - Florian Fainelli <florian@openwrt.org>
4 * Control the Cobalt Qube/RaQ front LED
7 #include <linux/ioport.h>
8 #include <linux/leds.h>
9 #include <linux/module.h>
10 #include <linux/platform_device.h>
11 #include <linux/types.h>
13 #define LED_FRONT_LEFT 0x01
14 #define LED_FRONT_RIGHT 0x02
16 static void __iomem *led_port;
19 static void qube_front_led_set(struct led_classdev *led_cdev,
20 enum led_brightness brightness)
23 led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
25 led_value = ~(LED_FRONT_LEFT | LED_FRONT_RIGHT);
26 writeb(led_value, led_port);
29 static struct led_classdev qube_front_led = {
30 .name = "qube::front",
31 .brightness = LED_FULL,
32 .brightness_set = qube_front_led_set,
33 .default_trigger = "default-on",
36 static int cobalt_qube_led_probe(struct platform_device *pdev)
41 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
45 led_port = devm_ioremap(&pdev->dev, res->start, resource_size(res));
49 led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
50 writeb(led_value, led_port);
52 retval = led_classdev_register(&pdev->dev, &qube_front_led);
64 static int cobalt_qube_led_remove(struct platform_device *pdev)
66 led_classdev_unregister(&qube_front_led);
74 static struct platform_driver cobalt_qube_led_driver = {
75 .probe = cobalt_qube_led_probe,
76 .remove = cobalt_qube_led_remove,
78 .name = "cobalt-qube-leds",
83 module_platform_driver(cobalt_qube_led_driver);
85 MODULE_LICENSE("GPL");
86 MODULE_DESCRIPTION("Front LED support for Cobalt Server");
87 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
88 MODULE_ALIAS("platform:cobalt-qube-leds");