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.
45 if (!led_cdev->brightness_set) in __led_set_brightness()
46 return -ENOTSUPP; in __led_set_brightness()
48 led_cdev->brightness_set(led_cdev, value); in __led_set_brightness()
56 if (!led_cdev->brightness_set_blocking) in __led_set_brightness_blocking()
57 return -ENOTSUPP; in __led_set_brightness_blocking()
59 return led_cdev->brightness_set_blocking(led_cdev, value); in __led_set_brightness_blocking()
68 if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) { in led_timer_function()
70 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_timer_function()
75 &led_cdev->work_flags)) { in led_timer_function()
76 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_timer_function()
82 /* Time to switch the LED on. */ in led_timer_function()
84 &led_cdev->work_flags)) in led_timer_function()
85 brightness = led_cdev->new_blink_brightness; in led_timer_function()
87 brightness = led_cdev->blink_brightness; in led_timer_function()
88 delay = led_cdev->blink_delay_on; in led_timer_function()
93 led_cdev->blink_brightness = brightness; in led_timer_function()
95 delay = led_cdev->blink_delay_off; in led_timer_function()
100 /* Return in next iteration if led is in one-shot mode and we are in in led_timer_function()
101 * the final blink state so that the led is toggled each delay_on + in led_timer_function()
104 if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags)) { in led_timer_function()
105 if (test_bit(LED_BLINK_INVERT, &led_cdev->work_flags)) { in led_timer_function()
108 &led_cdev->work_flags); in led_timer_function()
112 &led_cdev->work_flags); in led_timer_function()
116 mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay)); in led_timer_function()
125 if (test_and_clear_bit(LED_BLINK_DISABLE, &led_cdev->work_flags)) { in set_brightness_delayed()
126 led_cdev->delayed_set_value = LED_OFF; in set_brightness_delayed()
130 ret = __led_set_brightness(led_cdev, led_cdev->delayed_set_value); in set_brightness_delayed()
131 if (ret == -ENOTSUPP) in set_brightness_delayed()
133 led_cdev->delayed_set_value); in set_brightness_delayed()
135 /* LED HW might have been unplugged, therefore don't warn */ in set_brightness_delayed()
136 !(ret == -ENODEV && (led_cdev->flags & LED_UNREGISTERING) && in set_brightness_delayed()
137 (led_cdev->flags & LED_HW_PLUGGABLE))) in set_brightness_delayed()
138 dev_err(led_cdev->dev, in set_brightness_delayed()
139 "Setting an LED's brightness failed (%d)\n", ret); in set_brightness_delayed()
150 led_cdev->blink_brightness = current_brightness; in led_set_software_blink()
151 if (!led_cdev->blink_brightness) in led_set_software_blink()
152 led_cdev->blink_brightness = led_cdev->max_brightness; in led_set_software_blink()
154 led_cdev->blink_delay_on = delay_on; in led_set_software_blink()
155 led_cdev->blink_delay_off = delay_off; in led_set_software_blink()
157 /* never on - just set to off */ in led_set_software_blink()
163 /* never off - just set to brightness */ in led_set_software_blink()
166 led_cdev->blink_brightness); in led_set_software_blink()
170 set_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_set_software_blink()
171 mod_timer(&led_cdev->blink_timer, jiffies + 1); in led_set_software_blink()
179 if (!test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) && in led_blink_setup()
180 led_cdev->blink_set && in led_blink_setup()
181 !led_cdev->blink_set(led_cdev, delay_on, delay_off)) in led_blink_setup()
193 INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed); in led_init_core()
195 timer_setup(&led_cdev->blink_timer, led_timer_function, 0); in led_init_core()
203 del_timer_sync(&led_cdev->blink_timer); in led_blink_set()
205 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_blink_set()
206 clear_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags); in led_blink_set()
207 clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags); in led_blink_set()
218 if (test_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags) && in led_blink_set_oneshot()
219 timer_pending(&led_cdev->blink_timer)) in led_blink_set_oneshot()
222 set_bit(LED_BLINK_ONESHOT, &led_cdev->work_flags); in led_blink_set_oneshot()
223 clear_bit(LED_BLINK_ONESHOT_STOP, &led_cdev->work_flags); in led_blink_set_oneshot()
226 set_bit(LED_BLINK_INVERT, &led_cdev->work_flags); in led_blink_set_oneshot()
228 clear_bit(LED_BLINK_INVERT, &led_cdev->work_flags); in led_blink_set_oneshot()
236 del_timer_sync(&led_cdev->blink_timer); in led_stop_software_blink()
237 led_cdev->blink_delay_on = 0; in led_stop_software_blink()
238 led_cdev->blink_delay_off = 0; in led_stop_software_blink()
239 clear_bit(LED_BLINK_SW, &led_cdev->work_flags); in led_stop_software_blink()
250 if (test_bit(LED_BLINK_SW, &led_cdev->work_flags)) { in led_set_brightness()
257 set_bit(LED_BLINK_DISABLE, &led_cdev->work_flags); in led_set_brightness()
258 schedule_work(&led_cdev->set_brightness_work); in led_set_brightness()
261 &led_cdev->work_flags); in led_set_brightness()
262 led_cdev->new_blink_brightness = brightness; in led_set_brightness()
279 led_cdev->delayed_set_value = value; in led_set_brightness_nopm()
280 schedule_work(&led_cdev->set_brightness_work); in led_set_brightness_nopm()
287 led_cdev->brightness = min(value, led_cdev->max_brightness); in led_set_brightness_nosleep()
289 if (led_cdev->flags & LED_SUSPENDED) in led_set_brightness_nosleep()
292 led_set_brightness_nopm(led_cdev, led_cdev->brightness); in led_set_brightness_nosleep()
299 if (led_cdev->blink_delay_on || led_cdev->blink_delay_off) in led_set_brightness_sync()
300 return -EBUSY; in led_set_brightness_sync()
302 led_cdev->brightness = min(value, led_cdev->max_brightness); in led_set_brightness_sync()
304 if (led_cdev->flags & LED_SUSPENDED) in led_set_brightness_sync()
307 return __led_set_brightness_blocking(led_cdev, led_cdev->brightness); in led_set_brightness_sync()
315 if (led_cdev->brightness_get) { in led_update_brightness()
316 ret = led_cdev->brightness_get(led_cdev); in led_update_brightness()
318 led_cdev->brightness = ret; in led_update_brightness()
329 struct fwnode_handle *fwnode = led_cdev->dev->fwnode; in led_get_default_pattern()
330 u32 *pattern; in led_get_default_pattern() local
333 count = fwnode_property_count_u32(fwnode, "led-pattern"); in led_get_default_pattern()
337 pattern = kcalloc(count, sizeof(*pattern), GFP_KERNEL); in led_get_default_pattern()
338 if (!pattern) in led_get_default_pattern()
341 if (fwnode_property_read_u32_array(fwnode, "led-pattern", pattern, count)) { in led_get_default_pattern()
342 kfree(pattern); in led_get_default_pattern()
348 return pattern; in led_get_default_pattern()
352 /* Caller must ensure led_cdev->led_access held */
355 lockdep_assert_held(&led_cdev->led_access); in led_sysfs_disable()
357 led_cdev->flags |= LED_SYSFS_DISABLE; in led_sysfs_disable()
361 /* Caller must ensure led_cdev->led_access held */
364 lockdep_assert_held(&led_cdev->led_access); in led_sysfs_enable()
366 led_cdev->flags &= ~LED_SYSFS_DISABLE; in led_sysfs_enable()
380 ret = fwnode_property_read_string(fwnode, "label", &props->label); in led_parse_fwnode_props()
387 ret = fwnode_property_read_u32(fwnode, "color", &props->color); in led_parse_fwnode_props()
390 else if (props->color >= LED_COLOR_ID_MAX) in led_parse_fwnode_props()
391 dev_err(dev, "LED color identifier out of range\n"); in led_parse_fwnode_props()
393 props->color_present = true; in led_parse_fwnode_props()
400 ret = fwnode_property_read_string(fwnode, "function", &props->function); in led_parse_fwnode_props()
407 if (!fwnode_property_present(fwnode, "function-enumerator")) in led_parse_fwnode_props()
410 ret = fwnode_property_read_u32(fwnode, "function-enumerator", in led_parse_fwnode_props()
411 &props->func_enum); in led_parse_fwnode_props()
414 "Error parsing 'function-enumerator' property (%d)\n", in led_parse_fwnode_props()
417 props->func_enum_present = true; in led_parse_fwnode_props()
425 struct fwnode_handle *fwnode = init_data->fwnode; in led_compose_name()
426 const char *devicename = init_data->devicename; in led_compose_name()
433 return -EINVAL; in led_compose_name()
440 * DT label should be used as-is for LED class device name. in led_compose_name()
442 * the final LED class device name. in led_compose_name()
455 snprintf(tmp_buf, LED_MAX_NAME_SIZE, "%s:%s-%d", in led_compose_name()
463 if (init_data->devname_mandatory) { in led_compose_name()
470 } else if (init_data->default_label) { in led_compose_name()
472 dev_err(dev, "Legacy LED naming requires devicename segment"); in led_compose_name()
473 return -EINVAL; in led_compose_name()
476 devicename, init_data->default_label); in led_compose_name()
478 strscpy(led_classdev_name, to_of_node(fwnode)->name, in led_compose_name()
481 return -EINVAL; in led_compose_name()