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authorKristoffer Ericson <kristoffer.ericson@gmail.com>2008-02-07 10:10:28 +0000
committerRichard Purdie <rpurdie@rpsys.net>2008-02-07 10:10:28 +0000
commitd39a7a63eb3971b1b3cc5c181ed526bf437b1c72 (patch)
tree057ad536088da0ec3fa705ef42eabaa430677640 /drivers
parent8fe217e7b6d4f186e269fda8aba73a213fad0fa0 (diff)
leds: Add HP Jornada 6xx driver
Add support for the LEDs on the HP Jornada 620/660/680/690 devices. Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/leds/Kconfig7
-rw-r--r--drivers/leds/Makefile1
-rw-r--r--drivers/leds/leds-hp6xx.c120
3 files changed, 128 insertions, 0 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 1dfe5bbc200..851a3b01781 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -91,6 +91,13 @@ config LEDS_COBALT_RAQ
help
This option enables support for the Cobalt Raq series LEDs.
+config LEDS_HP6XX
+ tristate "LED Support for the HP Jornada 6xx"
+ depends on LEDS_CLASS && SH_HP6XX
+ help
+ This option enables led support for the handheld
+ HP Jornada 620/660/680/690.
+
config LEDS_GPIO
tristate "LED Support for GPIO connected LEDs"
depends on LEDS_CLASS && GENERIC_GPIO
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 1ec45552b03..bc6afc8dcb2 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o
obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o
+obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
# LED Triggers
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
diff --git a/drivers/leds/leds-hp6xx.c b/drivers/leds/leds-hp6xx.c
new file mode 100644
index 00000000000..82d4ec38479
--- /dev/null
+++ b/drivers/leds/leds-hp6xx.c
@@ -0,0 +1,120 @@
+/*
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <asm/hd64461.h>
+#include <asm/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,
+};
+
+static struct led_classdev hp6xx_green_led = {
+ .name = "hp6xx:green",
+ .default_trigger = "ide-disk",
+ .brightness_set = hp6xxled_green_set,
+};
+
+#ifdef CONFIG_PM
+static int hp6xxled_suspend(struct platform_device *dev, pm_message_t state)
+{
+ led_classdev_suspend(&hp6xx_red_led);
+ led_classdev_suspend(&hp6xx_green_led);
+ return 0;
+}
+
+static int hp6xxled_resume(struct platform_device *dev)
+{
+ led_classdev_resume(&hp6xx_red_led);
+ led_classdev_resume(&hp6xx_green_led);
+ return 0;
+}
+#endif
+
+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,
+#ifdef CONFIG_PM
+ .suspend = hp6xxled_suspend,
+ .resume = hp6xxled_resume,
+#endif
+ .driver = {
+ .name = "hp6xx-led",
+ },
+};
+
+static int __init hp6xxled_init(void)
+{
+ return platform_driver_register(&hp6xxled_driver);
+}
+
+static void __exit hp6xxled_exit(void)
+{
+ platform_driver_unregister(&hp6xxled_driver);
+}
+
+module_init(hp6xxled_init);
+module_exit(hp6xxled_exit);
+
+MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
+MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
+MODULE_LICENSE("GPL");