Split the led driver

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7290 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 116 insertions, 0 deletions

diff --git a/target/linux/au1000-2.6/files/drivers/leds/leds-mtx1.c b/target/linux/au1000-2.6/files/drivers/leds/leds-mtx1.c
new file mode 100644
index 0000000000..86615f46b4
--- /dev/null
+++ b/target/linux/au1000-2.6/files/drivers/leds/leds-mtx1.c
@@ -0,0 +1,116 @@
+/*
+ * LED driver for MTX-1 boards
+ *
+ * Copyright 2007 Florian Fainelli <florian@openwrt.org>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <asm/mach-au1x00/au1000.h>
+
+static struct platform_device *pdev;
+
+static void mtx1_green_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
+{
+	/* The power LED cannot be controlled the same way as for the Status LED */
+	if (brightness) {
+        	au_writel( 0x18000800, GPIO2_OUTPUT );
+	} else {
+		au_writel( 0x18000000, GPIO2_OUTPUT);
+	}
+}
+
+static void mtx1_red_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
+{
+	/* We store GPIO address (originally address - 200) in the "flags" field*/
+	unsigned long pinmask = 1 << led_cdev->flags; 
+	if (brightness) {
+		au_writel((pinmask << 16) | pinmask, GPIO2_OUTPUT); 
+	} else { 
+		au_writel((pinmask << 16) | 0, GPIO2_OUTPUT);
+	}
+}
+
+static struct led_classdev mtx1_green_led = {
+	.name = "mtx1:green",
+	.brightness_set = mtx1_green_led_set,
+};
+
+static struct led_classdev mtx1_red_led = {
+	.name = "mtx1:red",
+	.flags = 12,
+	.brightness_set = mtx1_red_led_set,
+	.default_trigger = "ide-disk",
+};
+
+static int mtx1_leds_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = led_classdev_register(&pdev->dev, &mtx1_green_led);
+	if (ret < 0)
+		goto out;
+
+	ret = led_classdev_register(&pdev->dev, &mtx1_red_led);
+	if (ret < 0)
+		led_classdev_unregister(&mtx1_green_led);
+
+out:
+	return ret;
+}
+
+static int mtx1_leds_remove(struct platform_device *pdev)
+{
+	led_classdev_unregister(&mtx1_green_led);
+	led_classdev_unregister(&mtx1_red_led);
+	return 0;
+}
+
+static struct platform_driver mtx1_leds_driver = {
+	.probe = mtx1_leds_probe,
+	.remove = mtx1_leds_remove,
+	.driver = {
+		.name = "mtx1-leds",
+	}
+};
+
+static int __init mtx1_leds_init(void)
+{
+	int ret;
+
+        ret = platform_driver_register(&mtx1_leds_driver);
+        if (ret < 0)
+                goto out;
+
+        pdev = platform_device_register_simple("mtx1-leds", -1, NULL, 0);
+        if (IS_ERR(pdev)) {
+                ret = PTR_ERR(pdev);
+                platform_driver_unregister(&mtx1_leds_driver);
+                goto out;
+        }
+
+out:
+        return ret;
+
+}
+		
+static void __exit mtx1_leds_exit(void)
+{
+	platform_device_unregister(pdev);
+	platform_driver_unregister(&mtx1_leds_driver);
+}
+
+module_init(mtx1_leds_init);
+module_exit(mtx1_leds_exit);
+		
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_DESCRIPTION("MTX-1 LED driver");
+MODULE_LICENSE("GPL");