Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / leds / leds-hp6xx.c

diff --git a/kernel/drivers/leds/leds-hp6xx.c b/kernel/drivers/leds/leds-hp6xx.c
new file mode 100644 (file)
index 0000000..0b84c01
--- /dev/null
+++ b/kernel/drivers/leds/leds-hp6xx.c
@@ -0,0 +1,94 @@
+/*
+ * LED Triggers Core
+ * For the HP Jornada 620/660/680/690 handhelds
+ *
+ * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
+ *     this driver is based on leds-spitz.c by Richard Purdie.
+ *
+ * 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/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <asm/hd64461.h>
+#include <mach/hp6xx.h>
+
+static void hp6xxled_green_set(struct led_classdev *led_cdev,
+                              enum led_brightness value)
+{
+       u8 v8;
+
+       v8 = inb(PKDR);
+       if (value)
+               outb(v8 & (~PKDR_LED_GREEN), PKDR);
+       else
+               outb(v8 | PKDR_LED_GREEN, PKDR);
+}
+
+static void hp6xxled_red_set(struct led_classdev *led_cdev,
+                            enum led_brightness value)
+{
+       u16 v16;
+
+       v16 = inw(HD64461_GPBDR);
+       if (value)
+               outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR);
+       else
+               outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR);
+}
+
+static struct led_classdev hp6xx_red_led = {
+       .name                   = "hp6xx:red",
+       .default_trigger        = "hp6xx-charge",
+       .brightness_set         = hp6xxled_red_set,
+       .flags                  = LED_CORE_SUSPENDRESUME,
+};
+
+static struct led_classdev hp6xx_green_led = {
+       .name                   = "hp6xx:green",
+       .default_trigger        = "ide-disk",
+       .brightness_set         = hp6xxled_green_set,
+       .flags                  = LED_CORE_SUSPENDRESUME,
+};
+
+static int hp6xxled_probe(struct platform_device *pdev)
+{
+       int ret;
+
+       ret = led_classdev_register(&pdev->dev, &hp6xx_red_led);
+       if (ret < 0)
+               return ret;
+
+       ret = led_classdev_register(&pdev->dev, &hp6xx_green_led);
+       if (ret < 0)
+               led_classdev_unregister(&hp6xx_red_led);
+
+       return ret;
+}
+
+static int hp6xxled_remove(struct platform_device *pdev)
+{
+       led_classdev_unregister(&hp6xx_red_led);
+       led_classdev_unregister(&hp6xx_green_led);
+
+       return 0;
+}
+
+static struct platform_driver hp6xxled_driver = {
+       .probe          = hp6xxled_probe,
+       .remove         = hp6xxled_remove,
+       .driver         = {
+               .name           = "hp6xx-led",
+       },
+};
+
+module_platform_driver(hp6xxled_driver);
+
+MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
+MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:hp6xx-led");