X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fleds%2Fleds-locomo.c;fp=kernel%2Fdrivers%2Fleds%2Fleds-locomo.c;h=80ba048889d61faa76195805cd622b1dada80d02;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/leds/leds-locomo.c b/kernel/drivers/leds/leds-locomo.c
new file mode 100644
index 000000000..80ba04888
--- /dev/null
+++ b/kernel/drivers/leds/leds-locomo.c
@@ -0,0 +1,97 @@
+/*
+ * linux/drivers/leds/leds-locomo.c
+ *
+ * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
+ *
+ * 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/module.h>
+#include <linux/device.h>
+#include <linux/leds.h>
+
+#include <mach/hardware.h>
+#include <asm/hardware/locomo.h>
+
+static void locomoled_brightness_set(struct led_classdev *led_cdev,
+				enum led_brightness value, int offset)
+{
+	struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
+	unsigned long flags;
+
+	local_irq_save(flags);
+	if (value)
+		locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
+	else
+		locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
+	local_irq_restore(flags);
+}
+
+static void locomoled_brightness_set0(struct led_classdev *led_cdev,
+				enum led_brightness value)
+{
+	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
+}
+
+static void locomoled_brightness_set1(struct led_classdev *led_cdev,
+				enum led_brightness value)
+{
+	locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
+}
+
+static struct led_classdev locomo_led0 = {
+	.name			= "locomo:amber:charge",
+	.default_trigger	= "main-battery-charging",
+	.brightness_set		= locomoled_brightness_set0,
+};
+
+static struct led_classdev locomo_led1 = {
+	.name			= "locomo:green:mail",
+	.default_trigger	= "nand-disk",
+	.brightness_set		= locomoled_brightness_set1,
+};
+
+static int locomoled_probe(struct locomo_dev *ldev)
+{
+	int ret;
+
+	ret = led_classdev_register(&ldev->dev, &locomo_led0);
+	if (ret < 0)
+		return ret;
+
+	ret = led_classdev_register(&ldev->dev, &locomo_led1);
+	if (ret < 0)
+		led_classdev_unregister(&locomo_led0);
+
+	return ret;
+}
+
+static int locomoled_remove(struct locomo_dev *dev)
+{
+	led_classdev_unregister(&locomo_led0);
+	led_classdev_unregister(&locomo_led1);
+	return 0;
+}
+
+static struct locomo_driver locomoled_driver = {
+	.drv = {
+		.name = "locomoled"
+	},
+	.devid	= LOCOMO_DEVID_LED,
+	.probe	= locomoled_probe,
+	.remove	= locomoled_remove,
+};
+
+static int __init locomoled_init(void)
+{
+	return locomo_driver_register(&locomoled_driver);
+}
+module_init(locomoled_init);
+
+MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
+MODULE_DESCRIPTION("Locomo LED driver");
+MODULE_LICENSE("GPL");