Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Fabio Baltieri | 612 | 75.37% | 1 | 11.11% |
Krzysztof Kozlowski | 121 | 14.90% | 1 | 11.11% |
Uwe Kleine-König | 73 | 8.99% | 3 | 33.33% |
Jacek Anaszewski | 2 | 0.25% | 1 | 11.11% |
Thomas Gleixner | 2 | 0.25% | 1 | 11.11% |
Kim (Woogyom) Milo | 1 | 0.12% | 1 | 11.11% |
Shuah Khan | 1 | 0.12% | 1 | 11.11% |
Total | 812 | 9 |
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// SPDX-License-Identifier: GPL-2.0-only /* * One-shot LED Trigger * * Copyright 2012, Fabio Baltieri <fabio.baltieri@gmail.com> * * Based on ledtrig-timer.c by Richard Purdie <rpurdie@openedhand.com> */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/device.h> #include <linux/ctype.h> #include <linux/slab.h> #include <linux/leds.h> #include "../leds.h" #define DEFAULT_DELAY 100 struct oneshot_trig_data { unsigned int invert; }; static ssize_t led_shot(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct led_classdev *led_cdev = led_trigger_get_led(dev); struct oneshot_trig_data *oneshot_data = led_trigger_get_drvdata(dev); led_blink_set_oneshot(led_cdev, &led_cdev->blink_delay_on, &led_cdev->blink_delay_off, oneshot_data->invert); /* content is ignored */ return size; } static ssize_t led_invert_show(struct device *dev, struct device_attribute *attr, char *buf) { struct oneshot_trig_data *oneshot_data = led_trigger_get_drvdata(dev); return sprintf(buf, "%u\n", oneshot_data->invert); } static ssize_t led_invert_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct led_classdev *led_cdev = led_trigger_get_led(dev); struct oneshot_trig_data *oneshot_data = led_trigger_get_drvdata(dev); unsigned long state; int ret; ret = kstrtoul(buf, 0, &state); if (ret) return ret; oneshot_data->invert = !!state; if (oneshot_data->invert) led_set_brightness_nosleep(led_cdev, LED_FULL); else led_set_brightness_nosleep(led_cdev, LED_OFF); return size; } static ssize_t led_delay_on_show(struct device *dev, struct device_attribute *attr, char *buf) { struct led_classdev *led_cdev = led_trigger_get_led(dev); return sprintf(buf, "%lu\n", led_cdev->blink_delay_on); } static ssize_t led_delay_on_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct led_classdev *led_cdev = led_trigger_get_led(dev); unsigned long state; int ret; ret = kstrtoul(buf, 0, &state); if (ret) return ret; led_cdev->blink_delay_on = state; return size; } static ssize_t led_delay_off_show(struct device *dev, struct device_attribute *attr, char *buf) { struct led_classdev *led_cdev = led_trigger_get_led(dev); return sprintf(buf, "%lu\n", led_cdev->blink_delay_off); } static ssize_t led_delay_off_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { struct led_classdev *led_cdev = led_trigger_get_led(dev); unsigned long state; int ret; ret = kstrtoul(buf, 0, &state); if (ret) return ret; led_cdev->blink_delay_off = state; return size; } static DEVICE_ATTR(delay_on, 0644, led_delay_on_show, led_delay_on_store); static DEVICE_ATTR(delay_off, 0644, led_delay_off_show, led_delay_off_store); static DEVICE_ATTR(invert, 0644, led_invert_show, led_invert_store); static DEVICE_ATTR(shot, 0200, NULL, led_shot); static struct attribute *oneshot_trig_attrs[] = { &dev_attr_delay_on.attr, &dev_attr_delay_off.attr, &dev_attr_invert.attr, &dev_attr_shot.attr, NULL }; ATTRIBUTE_GROUPS(oneshot_trig); static void pattern_init(struct led_classdev *led_cdev) { u32 *pattern; unsigned int size = 0; pattern = led_get_default_pattern(led_cdev, &size); if (!pattern) goto out_default; if (size != 2) { dev_warn(led_cdev->dev, "Expected 2 but got %u values for delays pattern\n", size); goto out_default; } led_cdev->blink_delay_on = pattern[0]; led_cdev->blink_delay_off = pattern[1]; kfree(pattern); return; out_default: kfree(pattern); led_cdev->blink_delay_on = DEFAULT_DELAY; led_cdev->blink_delay_off = DEFAULT_DELAY; } static int oneshot_trig_activate(struct led_classdev *led_cdev) { struct oneshot_trig_data *oneshot_data; oneshot_data = kzalloc(sizeof(*oneshot_data), GFP_KERNEL); if (!oneshot_data) return -ENOMEM; led_set_trigger_data(led_cdev, oneshot_data); if (led_cdev->flags & LED_INIT_DEFAULT_TRIGGER) { pattern_init(led_cdev); /* * Mark as initialized even on pattern_init() error because * any consecutive call to it would produce the same error. */ led_cdev->flags &= ~LED_INIT_DEFAULT_TRIGGER; } return 0; } static void oneshot_trig_deactivate(struct led_classdev *led_cdev) { struct oneshot_trig_data *oneshot_data = led_get_trigger_data(led_cdev); kfree(oneshot_data); /* Stop blinking */ led_set_brightness(led_cdev, LED_OFF); } static struct led_trigger oneshot_led_trigger = { .name = "oneshot", .activate = oneshot_trig_activate, .deactivate = oneshot_trig_deactivate, .groups = oneshot_trig_groups, }; module_led_trigger(oneshot_led_trigger); MODULE_AUTHOR("Fabio Baltieri <fabio.baltieri@gmail.com>"); MODULE_DESCRIPTION("One-shot LED trigger"); MODULE_LICENSE("GPL v2");
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