Rewrite LED driver, enable PCMCIA modules

[openwrt/staging/chunkeey.git] / target / linux / rdc-2.6 / files / drivers / leds / leds-rdc3211.c

diff --git a/target/linux/rdc-2.6/files/drivers/leds/leds-rdc3211.c b/target/linux/rdc-2.6/files/drivers/leds/leds-rdc3211.c
new file mode 100644 (file)
index 0000000..b98b43a
--- /dev/null
+++ b/target/linux/rdc-2.6/files/drivers/leds/leds-rdc3211.c
@@ -0,0 +1,109 @@
+/*
+ * LED driver for RDC3211 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/io.h>
+
+#define LED_VAL        0x8000384C    // the data ofset of gpio 0~30
+
+static struct platform_device *pdev;
+
+static void rdc3211_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
+{
+       unsigned long ul_ledstat = 0xffffffff;
+       unsigned long led_bit = 1 << (led_cdev->flags);
+
+       if (brightness)
+               ul_ledstat &= ~led_bit;
+       else
+               ul_ledstat|=  led_bit;
+
+       outl(LED_VAL, 0xcf8);
+       outl(ul_ledstat, 0xcfc);
+}
+
+static struct led_classdev rdc3211_power_led = {
+       .name = "rdc3211:power",
+       .flags = 15,
+       .brightness_set = rdc3211_led_set,
+};
+
+static struct led_classdev rdc3211_dmz_led = {
+       .name = "rdc3211:dmz",
+       .flags = 16,
+       .brightness_set = rdc3211_led_set,
+};
+
+static int rdc3211_leds_probe(struct platform_device *pdev)
+{
+       int ret;
+
+       ret = led_classdev_register(&pdev->dev, &rdc3211_power_led);
+       if (ret < 0)
+               return ret;
+
+       ret = led_classdev_register(&pdev->dev, &rdc3211_dmz_led);
+       if (ret < 0)
+               led_classdev_unregister(&rdc3211_power_led);
+
+       return ret;
+}
+
+static int rdc3211_leds_remove(struct platform_device *pdev)
+{
+       led_classdev_unregister(&rdc3211_power_led);
+       led_classdev_unregister(&rdc3211_dmz_led);
+       return 0;
+}
+
+static struct platform_driver rdc3211_leds_driver = {
+       .probe = rdc3211_leds_probe,
+       .remove = rdc3211_leds_remove,
+       .driver = {
+               .name = "rdc3211-leds",
+       }
+};
+
+static int __init rdc3211_leds_init(void)
+{
+       int ret;
+
+       ret = platform_driver_register(&rdc3211_leds_driver);
+       if (ret < 0)
+               goto out;
+
+       pdev = platform_device_register_simple("rdc3211-leds", -1, NULL, 0);
+       if (IS_ERR(pdev)) {
+               ret = PTR_ERR(pdev);
+               platform_driver_unregister(&rdc3211_leds_driver);
+               goto out;
+       }
+
+out:
+       return ret;
+}
+               
+static void __exit rdc3211_leds_exit(void)
+{
+       platform_driver_unregister(&rdc3211_leds_driver);
+}
+
+module_init(rdc3211_leds_init);
+module_exit(rdc3211_leds_exit);
+               
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_DESCRIPTION("RDC3211 LED driver");
+MODULE_LICENSE("GPL");