2  * MSI GT683R led driver
8  * published by the Free Software Foundation; either version 2 of
24 #include "hid-ids.h"
36 	GT683R_LED_AUDIO = 2,
44 	GT683R_LED_FRONT = 2,
72 	struct device *dev = led_cdev->dev->parent;  in gt683r_brightness_set()
74 	struct gt683r_led *led = hid_get_drvdata(hdev);  in gt683r_brightness_set()  local
77 		if (led_cdev == &led->led_devs[i])  in gt683r_brightness_set()
82 		led->brightnesses[i] = brightness;  in gt683r_brightness_set()
83 		schedule_work(&led->work);  in gt683r_brightness_set()
92 	struct hid_device *hdev = to_hid_device(dev->parent);  in mode_show()
93 	struct gt683r_led *led = hid_get_drvdata(hdev);  in mode_show()  local
95 	if (led->mode == GT683R_LED_NORMAL)  in mode_show()
97 	else if (led->mode == GT683R_LED_AUDIO)  in mode_show()
100 		sysfs_mode = 2;  in mode_show()
110 	struct hid_device *hdev = to_hid_device(dev->parent);  in mode_store()
111 	struct gt683r_led *led = hid_get_drvdata(hdev);  in mode_store()  local
114 	if (kstrtou8(buf, 10, &sysfs_mode) || sysfs_mode > 2)  in mode_store()
115 		return -EINVAL;  in mode_store()
117 	mutex_lock(&led->lock);  in mode_store()
120 		led->mode = GT683R_LED_NORMAL;  in mode_store()
122 		led->mode = GT683R_LED_AUDIO;  in mode_store()
124 		led->mode = GT683R_LED_BREATHING;  in mode_store()
126 	mutex_unlock(&led->lock);  in mode_store()
127 	schedule_work(&led->work);  in mode_store()
132 static int gt683r_led_snd_msg(struct gt683r_led *led, u8 *msg)  in gt683r_led_snd_msg()  argument
136 	ret = hid_hw_raw_request(led->hdev, msg[0], msg, GT683R_BUFFER_SIZE,  in gt683r_led_snd_msg()
139 		hid_err(led->hdev,  in gt683r_led_snd_msg()
143 		return -EIO;  in gt683r_led_snd_msg()
149 static int gt683r_leds_set(struct gt683r_led *led, u8 leds)  in gt683r_leds_set()  argument
156 		return -ENOMEM;  in gt683r_leds_set()
160 	buffer[2] = 0x30;  in gt683r_leds_set()
162 	ret = gt683r_led_snd_msg(led, buffer);  in gt683r_leds_set()
168 static int gt683r_mode_set(struct gt683r_led *led, u8 mode)  in gt683r_mode_set()  argument
175 		return -ENOMEM;  in gt683r_mode_set()
179 	buffer[2] = 0x20;  in gt683r_mode_set()
182 	ret = gt683r_led_snd_msg(led, buffer);  in gt683r_mode_set()
193 	struct gt683r_led *led = container_of(work, struct gt683r_led, work);  in gt683r_led_work()  local
195 	mutex_lock(&led->lock);  in gt683r_led_work()
198 		if (led->brightnesses[i])  in gt683r_led_work()
202 	if (gt683r_leds_set(led, leds))  in gt683r_led_work()
206 		mode = led->mode;  in gt683r_led_work()
210 	gt683r_mode_set(led, mode);  in gt683r_led_work()
212 	mutex_unlock(&led->lock);  in gt683r_led_work()
239 	struct gt683r_led *led;  in gt683r_led_probe()  local
241 	led = devm_kzalloc(&hdev->dev, sizeof(*led), GFP_KERNEL);  in gt683r_led_probe()
242 	if (!led)  in gt683r_led_probe()
243 		return -ENOMEM;  in gt683r_led_probe()
245 	mutex_init(&led->lock);  in gt683r_led_probe()
246 	INIT_WORK(&led->work, gt683r_led_work);  in gt683r_led_probe()
248 	led->mode = GT683R_LED_NORMAL;  in gt683r_led_probe()
249 	led->hdev = hdev;  in gt683r_led_probe()
250 	hid_set_drvdata(hdev, led);  in gt683r_led_probe()
265 		name_sz = strlen(dev_name(&hdev->dev)) +  in gt683r_led_probe()
268 		name = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);  in gt683r_led_probe()
270 			ret = -ENOMEM;  in gt683r_led_probe()
275 				dev_name(&hdev->dev), gt683r_panel_names[i]);  in gt683r_led_probe()
276 		led->led_devs[i].name = name;  in gt683r_led_probe()
277 		led->led_devs[i].max_brightness = 1;  in gt683r_led_probe()
278 		led->led_devs[i].brightness_set = gt683r_brightness_set;  in gt683r_led_probe()
279 		led->led_devs[i].groups = gt683r_led_groups;  in gt683r_led_probe()
281 		ret = led_classdev_register(&hdev->dev, &led->led_devs[i]);  in gt683r_led_probe()
283 			hid_err(hdev, "could not register led device\n");  in gt683r_led_probe()
291 	for (i = i - 1; i >= 0; i--)  in gt683r_led_probe()
292 		led_classdev_unregister(&led->led_devs[i]);  in gt683r_led_probe()
300 	struct gt683r_led *led = hid_get_drvdata(hdev);  in gt683r_led_remove()  local
303 		led_classdev_unregister(&led->led_devs[i]);  in gt683r_led_remove()
304 	flush_work(&led->work);  in gt683r_led_remove()
318 MODULE_DESCRIPTION("MSI GT683R led driver");