6d0cf3e048
Adds LED drivers for LEDs found on the Sharp Zaurus c6000 model (tosa). Signed-off-by: Dirk Opfer <dirk@opfer-online.de> Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
131 lines
2.9 KiB
C
131 lines
2.9 KiB
C
/*
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* LED Triggers Core
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*
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* Copyright 2005 Dirk Opfer
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*
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* Author: Dirk Opfer <Dirk@Opfer-Online.de>
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* based on spitz.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/config.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/leds.h>
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#include <asm/hardware/scoop.h>
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#include <asm/mach-types.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/pxa-regs.h>
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#include <asm/arch/tosa.h>
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static void tosaled_amber_set(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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if (value)
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set_scoop_gpio(&tosascoop_jc_device.dev,
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TOSA_SCOOP_JC_CHRG_ERR_LED);
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else
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reset_scoop_gpio(&tosascoop_jc_device.dev,
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TOSA_SCOOP_JC_CHRG_ERR_LED);
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}
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static void tosaled_green_set(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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if (value)
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set_scoop_gpio(&tosascoop_jc_device.dev,
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TOSA_SCOOP_JC_NOTE_LED);
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else
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reset_scoop_gpio(&tosascoop_jc_device.dev,
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TOSA_SCOOP_JC_NOTE_LED);
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}
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static struct led_classdev tosa_amber_led = {
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.name = "tosa:amber",
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.default_trigger = "sharpsl-charge",
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.brightness_set = tosaled_amber_set,
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};
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static struct led_classdev tosa_green_led = {
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.name = "tosa:green",
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.default_trigger = "nand-disk",
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.brightness_set = tosaled_green_set,
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};
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#ifdef CONFIG_PM
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static int tosaled_suspend(struct platform_device *dev, pm_message_t state)
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{
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#ifdef CONFIG_LEDS_TRIGGERS
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if (tosa_amber_led.trigger && strcmp(tosa_amber_led.trigger->name,
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"sharpsl-charge"))
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#endif
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led_classdev_suspend(&tosa_amber_led);
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led_classdev_suspend(&tosa_green_led);
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return 0;
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}
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static int tosaled_resume(struct platform_device *dev)
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{
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led_classdev_resume(&tosa_amber_led);
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led_classdev_resume(&tosa_green_led);
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return 0;
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}
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#else
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#define tosaled_suspend NULL
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#define tosaled_resume NULL
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#endif
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static int tosaled_probe(struct platform_device *pdev)
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{
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int ret;
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ret = led_classdev_register(&pdev->dev, &tosa_amber_led);
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if (ret < 0)
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return ret;
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ret = led_classdev_register(&pdev->dev, &tosa_green_led);
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if (ret < 0)
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led_classdev_unregister(&tosa_amber_led);
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return ret;
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}
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static int tosaled_remove(struct platform_device *pdev)
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{
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led_classdev_unregister(&tosa_amber_led);
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led_classdev_unregister(&tosa_green_led);
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return 0;
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}
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static struct platform_driver tosaled_driver = {
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.probe = tosaled_probe,
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.remove = tosaled_remove,
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.suspend = tosaled_suspend,
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.resume = tosaled_resume,
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.driver = {
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.name = "tosa-led",
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},
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};
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static int __init tosaled_init(void)
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{
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return platform_driver_register(&tosaled_driver);
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}
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static void __exit tosaled_exit(void)
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{
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platform_driver_unregister(&tosaled_driver);
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}
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module_init(tosaled_init);
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module_exit(tosaled_exit);
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MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>");
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MODULE_DESCRIPTION("Tosa LED driver");
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MODULE_LICENSE("GPL");
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