Lines Matching +full:led +full:- +full:pattern
1 // SPDX-License-Identifier: GPL-2.0-only
3 * LED Class Core
5 * Copyright 2005-2006 Openedhand Ltd.
49 if (!led_cdev->brightness_set) in __led_set_brightness()
50 return -ENOTSUPP; in __led_set_brightness()
52 led_cdev->brightness_set(led_cdev, value); in __led_set_brightness()
59 if (!led_cdev->brightness_set_blocking) in __led_set_brightness_blocking()
60 return -ENOTSUPP; in __led_set_brightness_blocking()
62 return led_cdev->brightness_set_blocking(led_cdev, value); in __led_set_brightness_blocking()
71 if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) { in led_timer_function()
73 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_timer_function()
78 &led_cdev->work_flags)) { in led_timer_function()
79 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_timer_function()
85 /* Time to switch the LED on. */ in led_timer_function()
87 &led_cdev->work_flags)) in led_timer_function()
88 brightness = led_cdev->new_blink_brightness; in led_timer_function()
90 brightness = led_cdev->blink_brightness; in led_timer_function()
91 delay = led_cdev->blink_delay_on; in led_timer_function()
96 led_cdev->blink_brightness = brightness; in led_timer_function()
98 delay = led_cdev->blink_delay_off; in led_timer_function()
103 /* Return in next iteration if led is in one-shot mode and we are in in led_timer_function()
104 * the final blink state so that the led is toggled each delay_on + in led_timer_function()
107 if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags)) { in led_timer_function()
108 if (test_bit(LED_BLINK_INVERT, &led_cdev->work_flags)) { in led_timer_function()
111 &led_cdev->work_flags); in led_timer_function()
115 &led_cdev->work_flags); in led_timer_function()
119 mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay)); in led_timer_function()
128 if (ret == -ENOTSUPP) in set_brightness_delayed_set_brightness()
131 /* LED HW might have been unplugged, therefore don't warn */ in set_brightness_delayed_set_brightness()
132 !(ret == -ENODEV && (led_cdev->flags & LED_UNREGISTERING) && in set_brightness_delayed_set_brightness()
133 (led_cdev->flags & LED_HW_PLUGGABLE))) in set_brightness_delayed_set_brightness()
134 dev_err(led_cdev->dev, in set_brightness_delayed_set_brightness()
135 "Setting an LED's brightness failed (%d)\n", ret); in set_brightness_delayed_set_brightness()
143 if (test_and_clear_bit(LED_BLINK_DISABLE, &led_cdev->work_flags)) { in set_brightness_delayed()
145 set_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags); in set_brightness_delayed()
151 * and turn the LED on. Both actions may have been scheduled to run in set_brightness_delayed()
155 if (test_and_clear_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags)) in set_brightness_delayed()
158 if (test_and_clear_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags)) in set_brightness_delayed()
159 set_brightness_delayed_set_brightness(led_cdev, led_cdev->delayed_set_value); in set_brightness_delayed()
161 if (test_and_clear_bit(LED_SET_BLINK, &led_cdev->work_flags)) { in set_brightness_delayed()
162 unsigned long delay_on = led_cdev->delayed_delay_on; in set_brightness_delayed()
163 unsigned long delay_off = led_cdev->delayed_delay_off; in set_brightness_delayed()
177 led_cdev->blink_brightness = current_brightness; in led_set_software_blink()
178 if (!led_cdev->blink_brightness) in led_set_software_blink()
179 led_cdev->blink_brightness = led_cdev->max_brightness; in led_set_software_blink()
181 led_cdev->blink_delay_on = delay_on; in led_set_software_blink()
182 led_cdev->blink_delay_off = delay_off; in led_set_software_blink()
184 /* never on - just set to off */ in led_set_software_blink()
190 /* never off - just set to brightness */ in led_set_software_blink()
193 led_cdev->blink_brightness); in led_set_software_blink()
197 set_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_set_software_blink()
198 mod_timer(&led_cdev->blink_timer, jiffies + 1); in led_set_software_blink()
206 if (!test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) && in led_blink_setup()
207 led_cdev->blink_set && in led_blink_setup()
208 !led_cdev->blink_set(led_cdev, delay_on, delay_off)) in led_blink_setup()
220 INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed); in led_init_core()
222 timer_setup(&led_cdev->blink_timer, led_timer_function, 0); in led_init_core()
230 del_timer_sync(&led_cdev->blink_timer); in led_blink_set()
232 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_blink_set()
233 clear_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags); in led_blink_set()
234 clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags); in led_blink_set()
245 if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) && in led_blink_set_oneshot()
246 timer_pending(&led_cdev->blink_timer)) in led_blink_set_oneshot()
249 set_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags); in led_blink_set_oneshot()
250 clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags); in led_blink_set_oneshot()
253 set_bit(LED_BLINK_INVERT, &led_cdev->work_flags); in led_blink_set_oneshot()
255 clear_bit(LED_BLINK_INVERT, &led_cdev->work_flags); in led_blink_set_oneshot()
265 if (led_cdev->blink_set && led_cdev->brightness_set_blocking) { in led_blink_set_nosleep()
266 led_cdev->delayed_delay_on = delay_on; in led_blink_set_nosleep()
267 led_cdev->delayed_delay_off = delay_off; in led_blink_set_nosleep()
268 set_bit(LED_SET_BLINK, &led_cdev->work_flags); in led_blink_set_nosleep()
269 schedule_work(&led_cdev->set_brightness_work); in led_blink_set_nosleep()
279 del_timer_sync(&led_cdev->blink_timer); in led_stop_software_blink()
280 led_cdev->blink_delay_on = 0; in led_stop_software_blink()
281 led_cdev->blink_delay_off = 0; in led_stop_software_blink()
282 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_stop_software_blink()
292 if (test_bit(LED_BLINK_SW, &led_cdev->work_flags)) { in led_set_brightness()
299 set_bit(LED_BLINK_DISABLE, &led_cdev->work_flags); in led_set_brightness()
300 schedule_work(&led_cdev->set_brightness_work); in led_set_brightness()
303 &led_cdev->work_flags); in led_set_brightness()
304 led_cdev->new_blink_brightness = brightness; in led_set_brightness()
321 * value 0 / LED_OFF is special, since it also disables hw-blinking in led_set_brightness_nopm()
322 * (sw-blink disable is handled in led_set_brightness()). in led_set_brightness_nopm()
323 * To avoid a hw-blink-disable getting lost when a second brightness in led_set_brightness_nopm()
328 led_cdev->delayed_set_value = value; in led_set_brightness_nopm()
329 set_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags); in led_set_brightness_nopm()
331 clear_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags); in led_set_brightness_nopm()
332 clear_bit(LED_SET_BLINK, &led_cdev->work_flags); in led_set_brightness_nopm()
333 set_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags); in led_set_brightness_nopm()
336 schedule_work(&led_cdev->set_brightness_work); in led_set_brightness_nopm()
342 led_cdev->brightness = min(value, led_cdev->max_brightness); in led_set_brightness_nosleep()
344 if (led_cdev->flags & LED_SUSPENDED) in led_set_brightness_nosleep()
347 led_set_brightness_nopm(led_cdev, led_cdev->brightness); in led_set_brightness_nosleep()
353 if (led_cdev->blink_delay_on || led_cdev->blink_delay_off) in led_set_brightness_sync()
354 return -EBUSY; in led_set_brightness_sync()
356 led_cdev->brightness = min(value, led_cdev->max_brightness); in led_set_brightness_sync()
358 if (led_cdev->flags & LED_SUSPENDED) in led_set_brightness_sync()
361 return __led_set_brightness_blocking(led_cdev, led_cdev->brightness); in led_set_brightness_sync()
369 if (led_cdev->brightness_get) { in led_update_brightness()
370 ret = led_cdev->brightness_get(led_cdev); in led_update_brightness()
374 led_cdev->brightness = ret; in led_update_brightness()
383 struct fwnode_handle *fwnode = led_cdev->dev->fwnode; in led_get_default_pattern()
384 u32 *pattern; in led_get_default_pattern() local
387 count = fwnode_property_count_u32(fwnode, "led-pattern"); in led_get_default_pattern()
391 pattern = kcalloc(count, sizeof(*pattern), GFP_KERNEL); in led_get_default_pattern()
392 if (!pattern) in led_get_default_pattern()
395 if (fwnode_property_read_u32_array(fwnode, "led-pattern", pattern, count)) { in led_get_default_pattern()
396 kfree(pattern); in led_get_default_pattern()
402 return pattern; in led_get_default_pattern()
406 /* Caller must ensure led_cdev->led_access held */
409 lockdep_assert_held(&led_cdev->led_access); in led_sysfs_disable()
411 led_cdev->flags |= LED_SYSFS_DISABLE; in led_sysfs_disable()
415 /* Caller must ensure led_cdev->led_access held */
418 lockdep_assert_held(&led_cdev->led_access); in led_sysfs_enable()
420 led_cdev->flags &= ~LED_SYSFS_DISABLE; in led_sysfs_enable()
434 ret = fwnode_property_read_string(fwnode, "label", &props->label); in led_parse_fwnode_props()
441 ret = fwnode_property_read_u32(fwnode, "color", &props->color); in led_parse_fwnode_props()
444 else if (props->color >= LED_COLOR_ID_MAX) in led_parse_fwnode_props()
445 dev_err(dev, "LED color identifier out of range\n"); in led_parse_fwnode_props()
447 props->color_present = true; in led_parse_fwnode_props()
454 ret = fwnode_property_read_string(fwnode, "function", &props->function); in led_parse_fwnode_props()
461 if (!fwnode_property_present(fwnode, "function-enumerator")) in led_parse_fwnode_props()
464 ret = fwnode_property_read_u32(fwnode, "function-enumerator", in led_parse_fwnode_props()
465 &props->func_enum); in led_parse_fwnode_props()
468 "Error parsing 'function-enumerator' property (%d)\n", in led_parse_fwnode_props()
471 props->func_enum_present = true; in led_parse_fwnode_props()
479 struct fwnode_handle *fwnode = init_data->fwnode; in led_compose_name()
480 const char *devicename = init_data->devicename; in led_compose_name()
483 return -EINVAL; in led_compose_name()
490 * DT label should be used as-is for LED class device name. in led_compose_name()
492 * the final LED class device name. in led_compose_name()
505 snprintf(tmp_buf, LED_MAX_NAME_SIZE, "%s:%s-%d", in led_compose_name()
513 if (init_data->devname_mandatory) { in led_compose_name()
520 } else if (init_data->default_label) { in led_compose_name()
522 dev_err(dev, "Legacy LED naming requires devicename segment"); in led_compose_name()
523 return -EINVAL; in led_compose_name()
526 devicename, init_data->default_label); in led_compose_name()
528 strscpy(led_classdev_name, to_of_node(fwnode)->name, in led_compose_name()
531 return -EINVAL; in led_compose_name()
541 if (!fwnode_property_read_string(fwnode, "default-state", &state)) { in led_init_default_state_get()