diff options
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/leds/Makefile | 1 | ||||
| -rw-r--r-- | drivers/leds/leds-locomo.c | 95 |
3 files changed, 103 insertions, 0 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index f7846b40c842..6099e32985aa 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -29,6 +29,13 @@ config LEDS_CORGI This option enables support for the LEDs on Sharp Zaurus SL-C7x0 series (C700, C750, C760, C860). +config LEDS_LOCOMO + tristate "LED Support for Locomo device" + depends LEDS_CLASS && SHARP_LOCOMO + help + This option enables support for the LEDs on Sharp Locomo. + Zaurus models SL-5500 and SL-5600. + config LEDS_SPITZ tristate "LED Support for the Sharp SL-Cxx00 series" depends LEDS_CLASS && PXA_SHARP_Cxx00 diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index cb5d0ada6a8c..d60e12b8af24 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_LEDS_TRIGGERS) += led-triggers.o # LED Platform Drivers obj-$(CONFIG_LEDS_CORGI) += leds-corgi.o +obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o obj-$(CONFIG_LEDS_SPITZ) += leds-spitz.o # LED Triggers diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c new file mode 100644 index 000000000000..749a86c2adb6 --- /dev/null +++ b/drivers/leds/leds-locomo.c @@ -0,0 +1,95 @@ +/* + * linux/drivers/leds/locomo.c + * + * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu> + * + * 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/device.h> +#include <linux/leds.h> + +#include <asm/hardware.h> +#include <asm/hardware/locomo.h> + +static void locomoled_brightness_set(struct led_classdev *led_cdev, + enum led_brightness value, int offset) +{ + struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->class_dev->dev); + unsigned long flags; + + local_irq_save(flags); + if (value) + locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset); + else + locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset); + local_irq_restore(flags); +} + +static void locomoled_brightness_set0(struct led_classdev *led_cdev, + enum led_brightness value) +{ + locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0); +} + +static void locomoled_brightness_set1(struct led_classdev *led_cdev, + enum led_brightness value) +{ + locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1); +} + +static struct led_classdev locomo_led0 = { + .name = "locomo:amber", + .brightness_set = locomoled_brightness_set0, +}; + +static struct led_classdev locomo_led1 = { + .name = "locomo:green", + .brightness_set = locomoled_brightness_set1, +}; + +static int locomoled_probe(struct locomo_dev *ldev) +{ + int ret; + + ret = led_classdev_register(&ldev->dev, &locomo_led0); + if (ret < 0) + return ret; + + ret = led_classdev_register(&ldev->dev, &locomo_led1); + if (ret < 0) + led_classdev_unregister(&locomo_led0); + + return ret; +} + +static int locomoled_remove(struct locomo_dev *dev) +{ + led_classdev_unregister(&locomo_led0); + led_classdev_unregister(&locomo_led1); + return 0; +} + +static struct locomo_driver locomoled_driver = { + .drv = { + .name = "locomoled" + }, + .devid = LOCOMO_DEVID_LED, + .probe = locomoled_probe, + .remove = locomoled_remove, +}; + +static int __init locomoled_init(void) +{ + return locomo_driver_register(&locomoled_driver); +} +module_init(locomoled_init); + +MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>"); +MODULE_DESCRIPTION("Locomo LED driver"); +MODULE_LICENSE("GPL"); |