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Date: Tue, 5 Feb 2008 19:13:56 +0100
From: Kristoffer Ericson <kristoffer.ericson@...il.com>
To: rpurdie@...nedhand.com
Cc: linux-main <linux-kernel@...r.kernel.org>,
linux-sh <linux-sh@...r.kernel.org>
Subject: [PATCH/HP6XX] - Add leds support to the HP Jornada 6xx handheld
Greetings,
Richard, I've been told from paul that I should seek another solution for my hd6446x.h merger (perhaps mfd driver). So this patch
is against linux-2.6.git with the header and defines changed back to old style. Tested to compile. I tested the "old" patch and that worked and I've only changed 5-6 names so it really should work as before.
shortlog:
This patch adds leds support for the HP Jornada 6xx handheld(s). Usage can either be through /sys/platform..
or by adding various triggers in menuconfig. The leds only support on / off where 0 is off and 1 is on.
signed-off-by:Kristoffer Ericson <kristoffer.ericson@...il.com>
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index ec568fa..0b0bca1 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -100,6 +100,14 @@ config LEDS_COBALT_RAQ
help
This option enables support for the Cobalt Raq series LEDs.
+config LEDS_HP6XX
+ bool "LED Support for the HP Jornada 6xx"
+ depends on LEDS_CLASS && SH_HP6XX
+ select LEDS_TRIGGERS
+ 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 a60de1b..a9a8ffb 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o
obj-$(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-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o
# LED Triggers
obj-$(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 0000000..82d4ec3
--- /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@...il.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@...il.com>");
+MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
+MODULE_LICENSE("GPL");
Download attachment "hp6xx-leds-support.patch" of type "application/octet-stream" (4097 bytes)
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