cregit-Linux how code gets into the kernel

Release 4.7 drivers/leds/leds-wrap.c

Directory: drivers/leds
/*
 * LEDs driver for PCEngines WRAP
 *
 * Copyright (C) 2006 Kristian Kielhofner <kris@krisk.org>
 *
 * Based on leds-net48xx.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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/scx200_gpio.h>
#include <linux/module.h>


#define DRVNAME "wrap-led"

#define WRAP_POWER_LED_GPIO	2

#define WRAP_ERROR_LED_GPIO	3

#define WRAP_EXTRA_LED_GPIO	18


static struct platform_device *pdev;


static void wrap_power_led_set(struct led_classdev *led_cdev, enum led_brightness value) { if (value) scx200_gpio_set_low(WRAP_POWER_LED_GPIO); else scx200_gpio_set_high(WRAP_POWER_LED_GPIO); }

Contributors

PersonTokensPropCommitsCommitProp
michael loefflermichael loeffler30100.00%1100.00%
Total30100.00%1100.00%


static void wrap_error_led_set(struct led_classdev *led_cdev, enum led_brightness value) { if (value) scx200_gpio_set_low(WRAP_ERROR_LED_GPIO); else scx200_gpio_set_high(WRAP_ERROR_LED_GPIO); }

Contributors

PersonTokensPropCommitsCommitProp
kristian kielhofnerkristian kielhofner30100.00%1100.00%
Total30100.00%1100.00%


static void wrap_extra_led_set(struct led_classdev *led_cdev, enum led_brightness value) { if (value) scx200_gpio_set_low(WRAP_EXTRA_LED_GPIO); else scx200_gpio_set_high(WRAP_EXTRA_LED_GPIO); }

Contributors

PersonTokensPropCommitsCommitProp
kristian kielhofnerkristian kielhofner30100.00%1100.00%
Total30100.00%1100.00%

static struct led_classdev wrap_power_led = { .name = "wrap::power", .brightness_set = wrap_power_led_set, .default_trigger = "default-on", .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev wrap_error_led = { .name = "wrap::error", .brightness_set = wrap_error_led_set, .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev wrap_extra_led = { .name = "wrap::extra", .brightness_set = wrap_extra_led_set, .flags = LED_CORE_SUSPENDRESUME, };
static int wrap_led_probe(struct platform_device *pdev) { int ret; ret = devm_led_classdev_register(&pdev->dev, &wrap_power_led); if (ret < 0) return ret; ret = devm_led_classdev_register(&pdev->dev, &wrap_error_led); if (ret < 0) return ret; return devm_led_classdev_register(&pdev->dev, &wrap_extra_led); }

Contributors

PersonTokensPropCommitsCommitProp
kristian kielhofnerkristian kielhofner4260.00%133.33%
michael loefflermichael loeffler2231.43%133.33%
fida mohammadfida mohammad68.57%133.33%
Total70100.00%3100.00%

static struct platform_driver wrap_led_driver = { .probe = wrap_led_probe, .driver = { .name = DRVNAME, }, };
static int __init wrap_led_init(void) { int ret; if (!scx200_gpio_present()) { ret = -ENODEV; goto out; } ret = platform_driver_register(&wrap_led_driver); if (ret < 0) goto out; pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0); if (IS_ERR(pdev)) { ret = PTR_ERR(pdev); platform_driver_unregister(&wrap_led_driver); goto out; } out: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
kristian kielhofnerkristian kielhofner89100.00%1100.00%
Total89100.00%1100.00%


static void __exit wrap_led_exit(void) { platform_device_unregister(pdev); platform_driver_unregister(&wrap_led_driver); }

Contributors

PersonTokensPropCommitsCommitProp
kristian kielhofnerkristian kielhofner20100.00%1100.00%
Total20100.00%1100.00%

module_init(wrap_led_init); module_exit(wrap_led_exit); MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>"); MODULE_DESCRIPTION("PCEngines WRAP LED driver"); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
kristian kielhofnerkristian kielhofner32975.81%112.50%
michael loefflermichael loeffler7316.82%112.50%
richard purdierichard purdie173.92%225.00%
fida mohammadfida mohammad61.38%112.50%
sven wegenersven wegener51.15%112.50%
paul gortmakerpaul gortmaker30.69%112.50%
sachin kamatsachin kamat10.23%112.50%
Total434100.00%8100.00%
Directory: drivers/leds
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