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.
11 #include <linux/led-class-multicolor.h>
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()
130 if (ret == -ENOTSUPP) in set_brightness_delayed_set_brightness()
131 /* No back-end support to set a fixed brightness value */ in set_brightness_delayed_set_brightness()
135 /* LED HW might have been unplugged, therefore don't warn */ in set_brightness_delayed_set_brightness()
136 if (ret == -ENODEV && led_cdev->flags & LED_UNREGISTERING && in set_brightness_delayed_set_brightness()
137 led_cdev->flags & LED_HW_PLUGGABLE) in set_brightness_delayed_set_brightness()
141 dev_err(led_cdev->dev, in set_brightness_delayed_set_brightness()
142 "Setting an LED's brightness failed (%d)\n", ret); in set_brightness_delayed_set_brightness()
150 if (test_and_clear_bit(LED_BLINK_DISABLE, &led_cdev->work_flags)) { in set_brightness_delayed()
152 set_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags); in set_brightness_delayed()
158 * and turn the LED on. Both actions may have been scheduled to run in set_brightness_delayed()
162 if (test_and_clear_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags)) in set_brightness_delayed()
165 if (test_and_clear_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags)) in set_brightness_delayed()
166 set_brightness_delayed_set_brightness(led_cdev, led_cdev->delayed_set_value); in set_brightness_delayed()
168 if (test_and_clear_bit(LED_SET_BLINK, &led_cdev->work_flags)) { in set_brightness_delayed()
169 unsigned long delay_on = led_cdev->delayed_delay_on; in set_brightness_delayed()
170 unsigned long delay_off = led_cdev->delayed_delay_off; in set_brightness_delayed()
184 led_cdev->blink_brightness = current_brightness; in led_set_software_blink()
185 if (!led_cdev->blink_brightness) in led_set_software_blink()
186 led_cdev->blink_brightness = led_cdev->max_brightness; in led_set_software_blink()
188 led_cdev->blink_delay_on = delay_on; in led_set_software_blink()
189 led_cdev->blink_delay_off = delay_off; in led_set_software_blink()
191 /* never on - just set to off */ in led_set_software_blink()
197 /* never off - just set to brightness */ in led_set_software_blink()
200 led_cdev->blink_brightness); in led_set_software_blink()
204 set_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_set_software_blink()
205 mod_timer(&led_cdev->blink_timer, jiffies + 1); in led_set_software_blink()
213 if (!test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) && in led_blink_setup()
214 led_cdev->blink_set && in led_blink_setup()
215 !led_cdev->blink_set(led_cdev, delay_on, delay_off)) in led_blink_setup()
227 INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed); in led_init_core()
229 timer_setup(&led_cdev->blink_timer, led_timer_function, 0); in led_init_core()
237 del_timer_sync(&led_cdev->blink_timer); in led_blink_set()
239 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_blink_set()
240 clear_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags); in led_blink_set()
241 clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags); in led_blink_set()
252 if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) && in led_blink_set_oneshot()
253 timer_pending(&led_cdev->blink_timer)) in led_blink_set_oneshot()
256 set_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags); in led_blink_set_oneshot()
257 clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags); in led_blink_set_oneshot()
260 set_bit(LED_BLINK_INVERT, &led_cdev->work_flags); in led_blink_set_oneshot()
262 clear_bit(LED_BLINK_INVERT, &led_cdev->work_flags); in led_blink_set_oneshot()
272 if (led_cdev->blink_set && led_cdev->brightness_set_blocking) { in led_blink_set_nosleep()
273 led_cdev->delayed_delay_on = delay_on; in led_blink_set_nosleep()
274 led_cdev->delayed_delay_off = delay_off; in led_blink_set_nosleep()
275 set_bit(LED_SET_BLINK, &led_cdev->work_flags); in led_blink_set_nosleep()
276 queue_work(led_cdev->wq, &led_cdev->set_brightness_work); in led_blink_set_nosleep()
286 del_timer_sync(&led_cdev->blink_timer); in led_stop_software_blink()
287 led_cdev->blink_delay_on = 0; in led_stop_software_blink()
288 led_cdev->blink_delay_off = 0; in led_stop_software_blink()
289 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_stop_software_blink()
299 if (test_bit(LED_BLINK_SW, &led_cdev->work_flags)) { in led_set_brightness()
306 set_bit(LED_BLINK_DISABLE, &led_cdev->work_flags); in led_set_brightness()
307 queue_work(led_cdev->wq, &led_cdev->set_brightness_work); in led_set_brightness()
310 &led_cdev->work_flags); in led_set_brightness()
311 led_cdev->new_blink_brightness = brightness; in led_set_brightness()
328 * value 0 / LED_OFF is special, since it also disables hw-blinking in led_set_brightness_nopm()
329 * (sw-blink disable is handled in led_set_brightness()). in led_set_brightness_nopm()
330 * To avoid a hw-blink-disable getting lost when a second brightness in led_set_brightness_nopm()
335 led_cdev->delayed_set_value = value; in led_set_brightness_nopm()
336 set_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags); in led_set_brightness_nopm()
338 clear_bit(LED_SET_BRIGHTNESS, &led_cdev->work_flags); in led_set_brightness_nopm()
339 clear_bit(LED_SET_BLINK, &led_cdev->work_flags); in led_set_brightness_nopm()
340 set_bit(LED_SET_BRIGHTNESS_OFF, &led_cdev->work_flags); in led_set_brightness_nopm()
343 queue_work(led_cdev->wq, &led_cdev->set_brightness_work); in led_set_brightness_nopm()
349 led_cdev->brightness = min(value, led_cdev->max_brightness); in led_set_brightness_nosleep()
351 if (led_cdev->flags & LED_SUSPENDED) in led_set_brightness_nosleep()
354 led_set_brightness_nopm(led_cdev, led_cdev->brightness); in led_set_brightness_nosleep()
360 if (led_cdev->blink_delay_on || led_cdev->blink_delay_off) in led_set_brightness_sync()
361 return -EBUSY; in led_set_brightness_sync()
363 led_cdev->brightness = min(value, led_cdev->max_brightness); in led_set_brightness_sync()
365 if (led_cdev->flags & LED_SUSPENDED) in led_set_brightness_sync()
368 return __led_set_brightness_blocking(led_cdev, led_cdev->brightness); in led_set_brightness_sync()
373 * This is a led-core function because just like led_set_brightness()
383 if (!(led_cdev->flags & LED_MULTI_COLOR)) { in led_mc_set_brightness()
384 dev_err_once(led_cdev->dev, "error not a multi-color LED\n"); in led_mc_set_brightness()
389 if (num_colors != mcled_cdev->num_colors) { in led_mc_set_brightness()
390 dev_err_once(led_cdev->dev, "error num_colors mismatch %u != %u\n", in led_mc_set_brightness()
391 num_colors, mcled_cdev->num_colors); in led_mc_set_brightness()
395 for (i = 0; i < mcled_cdev->num_colors; i++) in led_mc_set_brightness()
396 mcled_cdev->subled_info[i].intensity = intensity_value[i]; in led_mc_set_brightness()
406 if (led_cdev->brightness_get) { in led_update_brightness()
407 ret = led_cdev->brightness_get(led_cdev); in led_update_brightness()
411 led_cdev->brightness = ret; in led_update_brightness()
420 struct fwnode_handle *fwnode = led_cdev->dev->fwnode; in led_get_default_pattern()
421 u32 *pattern; in led_get_default_pattern() local
424 count = fwnode_property_count_u32(fwnode, "led-pattern"); in led_get_default_pattern()
428 pattern = kcalloc(count, sizeof(*pattern), GFP_KERNEL); in led_get_default_pattern()
429 if (!pattern) in led_get_default_pattern()
432 if (fwnode_property_read_u32_array(fwnode, "led-pattern", pattern, count)) { in led_get_default_pattern()
433 kfree(pattern); in led_get_default_pattern()
439 return pattern; in led_get_default_pattern()
443 /* Caller must ensure led_cdev->led_access held */
446 lockdep_assert_held(&led_cdev->led_access); in led_sysfs_disable()
448 led_cdev->flags |= LED_SYSFS_DISABLE; in led_sysfs_disable()
452 /* Caller must ensure led_cdev->led_access held */
455 lockdep_assert_held(&led_cdev->led_access); in led_sysfs_enable()
457 led_cdev->flags &= ~LED_SYSFS_DISABLE; in led_sysfs_enable()
471 ret = fwnode_property_read_string(fwnode, "label", &props->label); in led_parse_fwnode_props()
478 ret = fwnode_property_read_u32(fwnode, "color", &props->color); in led_parse_fwnode_props()
481 else if (props->color >= LED_COLOR_ID_MAX) in led_parse_fwnode_props()
482 dev_err(dev, "LED color identifier out of range\n"); in led_parse_fwnode_props()
484 props->color_present = true; in led_parse_fwnode_props()
491 ret = fwnode_property_read_string(fwnode, "function", &props->function); in led_parse_fwnode_props()
498 if (!fwnode_property_present(fwnode, "function-enumerator")) in led_parse_fwnode_props()
501 ret = fwnode_property_read_u32(fwnode, "function-enumerator", in led_parse_fwnode_props()
502 &props->func_enum); in led_parse_fwnode_props()
505 "Error parsing 'function-enumerator' property (%d)\n", in led_parse_fwnode_props()
508 props->func_enum_present = true; in led_parse_fwnode_props()
516 struct fwnode_handle *fwnode = init_data->fwnode; in led_compose_name()
517 const char *devicename = init_data->devicename; in led_compose_name()
520 return -EINVAL; in led_compose_name()
527 * DT label should be used as-is for LED class device name. in led_compose_name()
529 * the final LED class device name. in led_compose_name()
542 snprintf(tmp_buf, LED_MAX_NAME_SIZE, "%s:%s-%d", in led_compose_name()
550 if (init_data->devname_mandatory) { in led_compose_name()
557 } else if (init_data->default_label) { in led_compose_name()
559 dev_err(dev, "Legacy LED naming requires devicename segment"); in led_compose_name()
560 return -EINVAL; in led_compose_name()
563 devicename, init_data->default_label); in led_compose_name()
565 strscpy(led_classdev_name, to_of_node(fwnode)->name, in led_compose_name()
568 return -EINVAL; in led_compose_name()
587 if (!fwnode_property_read_string(fwnode, "default-state", &state)) { in led_init_default_state_get()