openwrt/upstream - upstream openwrt

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Diffstat (limited to 'target/linux/generic/hack-5.10/210-darwin_scripts_include.patch')

0 files changed, 0 insertions, 0 deletions

/* * LED driver for the RouterBOARD 750 * * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org> * * 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/module.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/leds.h> #include <linux/slab.h> #include <asm/mach-ath79/mach-rb750.h> #define DRV_NAME "leds-rb750" struct rb750_led_dev { struct led_classdev cdev; u32 mask; int active_low; void (*latch_change)(u32 clear, u32 set); }; struct rb750_led_drvdata { struct rb750_led_dev *led_devs; int num_leds; }; static inline struct rb750_led_dev *to_rbled(struct led_classdev *led_cdev) { return (struct rb750_led_dev *)container_of(led_cdev, struct rb750_led_dev, cdev); } static void rb750_led_brightness_set(struct led_classdev *led_cdev, enum led_brightness value) { struct rb750_led_dev *rbled = to_rbled(led_cdev); int level; level = (value == LED_OFF) ? 0 : 1; level ^= rbled->active_low; if (level) rbled->latch_change(0, rbled->mask); else rbled->latch_change(rbled->mask, 0); } static int rb750_led_probe(struct platform_device *pdev) { struct rb750_led_platform_data *pdata; struct rb750_led_drvdata *drvdata; int ret = 0; int i; pdata = pdev->dev.platform_data; if (!pdata) return -EINVAL; drvdata = kzalloc(sizeof(struct rb750_led_drvdata) + sizeof(struct rb750_led_dev) * pdata->num_leds, GFP_KERNEL); if (!drvdata) return -ENOMEM; drvdata->num_leds = pdata->num_leds; drvdata->led_devs = (struct rb750_led_dev *) &drvdata[1]; for (i = 0; i < drvdata->num_leds; i++) { struct rb750_led_dev *rbled = &drvdata->led_devs[i]; struct rb750_led_data *led_data = &pdata->leds[i]; rbled->cdev.name = led_data->name; rbled->cdev.default_trigger = led_data->default_trigger; rbled->cdev.brightness_set = rb750_led_brightness_set; rbled->cdev.brightness = LED_OFF; rbled->mask = led_data->mask; rbled->active_low = !!led_data->active_low; rbled->latch_change = pdata->latch_change; ret = led_classdev_register(&pdev->dev, &rbled->cdev); if (ret) goto err; } platform_set_drvdata(pdev, drvdata); return 0; err: for (i = i - 1; i >= 0; i--) led_classdev_unregister(&drvdata->led_devs[i].cdev); kfree(drvdata); return ret; } static int rb750_led_remove(struct platform_device *pdev) { struct rb750_led_drvdata *drvdata; int i; drvdata = platform_get_drvdata(pdev); for (i = 0; i < drvdata->num_leds; i++) led_classdev_unregister(&drvdata->led_devs[i].cdev); kfree(drvdata); return 0; } static struct platform_driver rb750_led_driver = { .probe = rb750_led_probe, .remove = rb750_led_remove, .driver = { .name = DRV_NAME, .owner = THIS_MODULE, }, }; MODULE_ALIAS("platform:leds-rb750"); static int __init rb750_led_init(void) { return platform_driver_register(&rb750_led_driver); } static void __exit rb750_led_exit(void) { platform_driver_unregister(&rb750_led_driver); } module_init(rb750_led_init); module_exit(rb750_led_exit); MODULE_DESCRIPTION(DRV_NAME); MODULE_DESCRIPTION("LED driver for the RouterBOARD 750"); MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); MODULE_LICENSE("GPL v2");


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