1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/leds/leds-cobalt-qube.c b/drivers/leds/leds-cobalt-qube.c
new file mode 100644
index 000000000000..d2b54b53d80a
--- /dev/null
+++ b/drivers/leds/leds-cobalt-qube.c
@@ -0,0 +1,102 @@
+/*
+ * 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	= "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 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_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_DESCRIPTION("Front LED support for Cobalt Server");
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");