diff options
Diffstat (limited to 'drivers/leds/leds-tosa.c')
-rw-r--r-- | drivers/leds/leds-tosa.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/leds/leds-tosa.c b/drivers/leds/leds-tosa.c new file mode 100644 index 000000000000..c9e8cc1ec481 --- /dev/null +++ b/drivers/leds/leds-tosa.c @@ -0,0 +1,131 @@ +/* + * LED Triggers Core + * + * Copyright 2005 Dirk Opfer + * + * Author: Dirk Opfer <Dirk@Opfer-Online.de> + * based on spitz.c + * + * 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/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <asm/hardware/scoop.h> +#include <asm/mach-types.h> +#include <asm/arch/hardware.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/tosa.h> + +static void tosaled_amber_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + set_scoop_gpio(&tosascoop_jc_device.dev, + TOSA_SCOOP_JC_CHRG_ERR_LED); + else + reset_scoop_gpio(&tosascoop_jc_device.dev, + TOSA_SCOOP_JC_CHRG_ERR_LED); +} + +static void tosaled_green_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + if (value) + set_scoop_gpio(&tosascoop_jc_device.dev, + TOSA_SCOOP_JC_NOTE_LED); + else + reset_scoop_gpio(&tosascoop_jc_device.dev, + TOSA_SCOOP_JC_NOTE_LED); +} + +static struct led_classdev tosa_amber_led = { + .name = "tosa:amber", + .default_trigger = "sharpsl-charge", + .brightness_set = tosaled_amber_set, +}; + +static struct led_classdev tosa_green_led = { + .name = "tosa:green", + .default_trigger = "nand-disk", + .brightness_set = tosaled_green_set, +}; + +#ifdef CONFIG_PM +static int tosaled_suspend(struct platform_device *dev, pm_message_t state) +{ +#ifdef CONFIG_LEDS_TRIGGERS + if (tosa_amber_led.trigger && strcmp(tosa_amber_led.trigger->name, + "sharpsl-charge")) +#endif + led_classdev_suspend(&tosa_amber_led); + led_classdev_suspend(&tosa_green_led); + return 0; +} + +static int tosaled_resume(struct platform_device *dev) +{ + led_classdev_resume(&tosa_amber_led); + led_classdev_resume(&tosa_green_led); + return 0; +} +#else +#define tosaled_suspend NULL +#define tosaled_resume NULL +#endif + +static int tosaled_probe(struct platform_device *pdev) +{ + int ret; + + ret = led_classdev_register(&pdev->dev, &tosa_amber_led); + if (ret < 0) + return ret; + + ret = led_classdev_register(&pdev->dev, &tosa_green_led); + if (ret < 0) + led_classdev_unregister(&tosa_amber_led); + + return ret; +} + +static int tosaled_remove(struct platform_device *pdev) +{ + led_classdev_unregister(&tosa_amber_led); + led_classdev_unregister(&tosa_green_led); + + return 0; +} + +static struct platform_driver tosaled_driver = { + .probe = tosaled_probe, + .remove = tosaled_remove, + .suspend = tosaled_suspend, + .resume = tosaled_resume, + .driver = { + .name = "tosa-led", + }, +}; + +static int __init tosaled_init(void) +{ + return platform_driver_register(&tosaled_driver); +} + +static void __exit tosaled_exit(void) +{ + platform_driver_unregister(&tosaled_driver); +} + +module_init(tosaled_init); +module_exit(tosaled_exit); + +MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>"); +MODULE_DESCRIPTION("Tosa LED driver"); +MODULE_LICENSE("GPL"); |