aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/ar71xx/files/drivers/leds
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/ar71xx/files/drivers/leds')
-rw-r--r--target/linux/ar71xx/files/drivers/leds/leds-rb750.c144
-rw-r--r--target/linux/ar71xx/files/drivers/leds/leds-wndr3700-usb.c76
2 files changed, 220 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/drivers/leds/leds-rb750.c b/target/linux/ar71xx/files/drivers/leds/leds-rb750.c
new file mode 100644
index 0000000..79e98b4
--- /dev/null
+++ b/target/linux/ar71xx/files/drivers/leds/leds-rb750.c
@@ -0,0 +1,144 @@
+/*
+ * LED driver for the RouterBOARD 750
+ *
+ * Copyright (C) 2010 Gabor Juhos <juhosg@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/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/slab.h>
+
+#include <asm/mach-ath79/mach-rb750.h>
+
+#define DRV_NAME "leds-rb750"
+
+struct rb750_led_dev {
+ struct led_classdev cdev;
+ u32 mask;
+ int active_low;
+ void (*latch_change)(u32 clear, u32 set);
+};
+
+struct rb750_led_drvdata {
+ struct rb750_led_dev *led_devs;
+ int num_leds;
+};
+
+static inline struct rb750_led_dev *to_rbled(struct led_classdev *led_cdev)
+{
+ return (struct rb750_led_dev *)container_of(led_cdev,
+ struct rb750_led_dev, cdev);
+}
+
+static void rb750_led_brightness_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct rb750_led_dev *rbled = to_rbled(led_cdev);
+ int level;
+
+ level = (value == LED_OFF) ? 0 : 1;
+ level ^= rbled->active_low;
+
+ if (level)
+ rbled->latch_change(0, rbled->mask);
+ else
+ rbled->latch_change(rbled->mask, 0);
+}
+
+static int rb750_led_probe(struct platform_device *pdev)
+{
+ struct rb750_led_platform_data *pdata;
+ struct rb750_led_drvdata *drvdata;
+ int ret = 0;
+ int i;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata)
+ return -EINVAL;
+
+ drvdata = kzalloc(sizeof(struct rb750_led_drvdata) +
+ sizeof(struct rb750_led_dev) * pdata->num_leds,
+ GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+
+ drvdata->num_leds = pdata->num_leds;
+ drvdata->led_devs = (struct rb750_led_dev *) &drvdata[1];
+
+ for (i = 0; i < drvdata->num_leds; i++) {
+ struct rb750_led_dev *rbled = &drvdata->led_devs[i];
+ struct rb750_led_data *led_data = &pdata->leds[i];
+
+ rbled->cdev.name = led_data->name;
+ rbled->cdev.default_trigger = led_data->default_trigger;
+ rbled->cdev.brightness_set = rb750_led_brightness_set;
+ rbled->cdev.brightness = LED_OFF;
+
+ rbled->mask = led_data->mask;
+ rbled->active_low = !!led_data->active_low;
+ rbled->latch_change = pdata->latch_change;
+
+ ret = led_classdev_register(&pdev->dev, &rbled->cdev);
+ if (ret)
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, drvdata);
+ return 0;
+
+err:
+ for (i = i - 1; i >= 0; i--)
+ led_classdev_unregister(&drvdata->led_devs[i].cdev);
+
+ kfree(drvdata);
+ return ret;
+}
+
+static int rb750_led_remove(struct platform_device *pdev)
+{
+ struct rb750_led_drvdata *drvdata;
+ int i;
+
+ drvdata = platform_get_drvdata(pdev);
+ for (i = 0; i < drvdata->num_leds; i++)
+ led_classdev_unregister(&drvdata->led_devs[i].cdev);
+
+ kfree(drvdata);
+ return 0;
+}
+
+static struct platform_driver rb750_led_driver = {
+ .probe = rb750_led_probe,
+ .remove = rb750_led_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+MODULE_ALIAS("platform:leds-rb750");
+
+static int __init rb750_led_init(void)
+{
+ return platform_driver_register(&rb750_led_driver);
+}
+
+static void __exit rb750_led_exit(void)
+{
+ platform_driver_unregister(&rb750_led_driver);
+}
+
+module_init(rb750_led_init);
+module_exit(rb750_led_exit);
+
+MODULE_DESCRIPTION(DRV_NAME);
+MODULE_DESCRIPTION("LED driver for the RouterBOARD 750");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
+MODULE_LICENSE("GPL v2");
diff --git a/target/linux/ar71xx/files/drivers/leds/leds-wndr3700-usb.c b/target/linux/ar71xx/files/drivers/leds/leds-wndr3700-usb.c
new file mode 100644
index 0000000..6425b05
--- /dev/null
+++ b/target/linux/ar71xx/files/drivers/leds/leds-wndr3700-usb.c
@@ -0,0 +1,76 @@
+/*
+ * USB LED driver for the NETGEAR WNDR3700
+ *
+ * Copyright (C) 2009 Gabor Juhos <juhosg@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/leds.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ath79.h>
+
+#define DRIVER_NAME "wndr3700-led-usb"
+
+static void wndr3700_usb_led_set(struct led_classdev *cdev,
+ enum led_brightness brightness)
+{
+ if (brightness)
+ ath79_device_reset_clear(AR71XX_RESET_GE1_PHY);
+ else
+ ath79_device_reset_set(AR71XX_RESET_GE1_PHY);
+}
+
+static enum led_brightness wndr3700_usb_led_get(struct led_classdev *cdev)
+{
+ return ath79_device_reset_get(AR71XX_RESET_GE1_PHY) ? LED_OFF : LED_FULL;
+}
+
+static struct led_classdev wndr3700_usb_led = {
+ .name = "netgear:green:usb",
+ .brightness_set = wndr3700_usb_led_set,
+ .brightness_get = wndr3700_usb_led_get,
+};
+
+static int wndr3700_usb_led_probe(struct platform_device *pdev)
+{
+ return led_classdev_register(&pdev->dev, &wndr3700_usb_led);
+}
+
+static int wndr3700_usb_led_remove(struct platform_device *pdev)
+{
+ led_classdev_unregister(&wndr3700_usb_led);
+ return 0;
+}
+
+static struct platform_driver wndr3700_usb_led_driver = {
+ .probe = wndr3700_usb_led_probe,
+ .remove = wndr3700_usb_led_remove,
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init wndr3700_usb_led_init(void)
+{
+ return platform_driver_register(&wndr3700_usb_led_driver);
+}
+
+static void __exit wndr3700_usb_led_exit(void)
+{
+ platform_driver_unregister(&wndr3700_usb_led_driver);
+}
+
+module_init(wndr3700_usb_led_init);
+module_exit(wndr3700_usb_led_exit);
+
+MODULE_DESCRIPTION("USB LED driver for the NETGEAR WNDR3700");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);