Lines Matching +full:broken +full:- +full:turn +full:- +full:around
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * video.c - ACPI Video Driver
7 * Copyright (C) 2006 Thomas Tuttle <linux-kernel@ttuttle.net>
53 static int disable_backlight_sysfs_if = -1;
58 static int report_key_events = -1;
63 static int hw_changes_brightness = -1;
67 "a hotkey is pressed: -1: auto, 0: normal 1: hw-changes-brightness");
76 static int only_lcd = -1;
135 u32 display_index:4; /* A zero-based instance of the Display */
140 u32 depend_on_vga:1; /* Non-VGA output device whose power is related to
142 u32 pipe_id:3; /* For VGA multiple-head devices. */
236 return -EINVAL; in acpi_video_get_brightness()
237 for (i = ACPI_VIDEO_FIRST_LEVEL; i < vd->brightness->count; i++) { in acpi_video_get_brightness()
238 if (vd->brightness->levels[i] == cur_level) in acpi_video_get_brightness()
239 return i - ACPI_VIDEO_FIRST_LEVEL; in acpi_video_get_brightness()
246 int request_level = bd->props.brightness + ACPI_VIDEO_FIRST_LEVEL; in acpi_video_set_brightness()
249 cancel_delayed_work(&vd->switch_brightness_work); in acpi_video_set_brightness()
251 vd->brightness->levels[request_level]); in acpi_video_set_brightness()
263 struct acpi_device *device = cooling_dev->devdata; in video_get_max_state()
266 *state = video->brightness->count - ACPI_VIDEO_FIRST_LEVEL - 1; in video_get_max_state()
273 struct acpi_device *device = cooling_dev->devdata; in video_get_cur_state()
279 return -EINVAL; in video_get_cur_state()
280 for (offset = ACPI_VIDEO_FIRST_LEVEL; offset < video->brightness->count; in video_get_cur_state()
282 if (level == video->brightness->levels[offset]) { in video_get_cur_state()
283 *state = video->brightness->count - offset - 1; in video_get_cur_state()
287 return -EINVAL; in video_get_cur_state()
293 struct acpi_device *device = cooling_dev->devdata; in video_set_cur_state()
297 if (state >= video->brightness->count - ACPI_VIDEO_FIRST_LEVEL) in video_set_cur_state()
298 return -EINVAL; in video_set_cur_state()
300 state = video->brightness->count - state; in video_set_cur_state()
301 level = video->brightness->levels[state - 1]; in video_set_cur_state()
312 * --------------------------------------------------------------------------
314 * --------------------------------------------------------------------------
332 if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { in acpi_video_device_lcd_query_levels()
334 status = -EFAULT; in acpi_video_device_lcd_query_levels()
354 status = acpi_execute_simple_method(device->dev->handle, in acpi_video_device_lcd_set_level()
358 return -EIO; in acpi_video_device_lcd_set_level()
361 device->brightness->curr = level; in acpi_video_device_lcd_set_level()
362 for (state = ACPI_VIDEO_FIRST_LEVEL; state < device->brightness->count; in acpi_video_device_lcd_set_level()
364 if (level == device->brightness->levels[state]) { in acpi_video_device_lcd_set_level()
365 if (device->backlight) in acpi_video_device_lcd_set_level()
366 device->backlight->props.brightness = in acpi_video_device_lcd_set_level()
367 state - ACPI_VIDEO_FIRST_LEVEL; in acpi_video_device_lcd_set_level()
372 return -EINVAL; in acpi_video_device_lcd_set_level()
390 if (disable_backlight_sysfs_if == -1) in video_disable_backlight_sysfs_if()
409 if (report_key_events == -1) in video_set_report_key_events()
410 report_key_events = (uintptr_t)id->driver_data; in video_set_report_key_events()
417 if (hw_changes_brightness == -1) in video_hw_changes_brightness()
424 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
468 * Some machines have a broken acpi-video interface for brightness
470 * on resume to turn the backlight power on. We Enable backlight
529 * Some machines report wrong key events on the acpi-bus, suppress
531 * around events which are plain wrong. In some cases we get double
532 * events, in this case acpi-video is considered the canonical source
535 * vendor acpi/wmi driver or by using /lib/udev/hwdb.d/60-keyboard.hwdb
570 if (device->brightness->flags._BQC_use_index) { in acpi_video_bqc_value_to_level()
576 if (device->brightness->flags._BCL_reversed) in acpi_video_bqc_value_to_level()
577 bqc_value = device->brightness->count - in acpi_video_bqc_value_to_level()
578 ACPI_VIDEO_FIRST_LEVEL - 1 - bqc_value; in acpi_video_bqc_value_to_level()
580 level = device->brightness->levels[bqc_value + in acpi_video_bqc_value_to_level()
598 if (device->cap._BQC || device->cap._BCQ) { in acpi_video_device_lcd_get_level_current()
599 char *buf = device->cap._BQC ? "_BQC" : "_BCQ"; in acpi_video_device_lcd_get_level_current()
601 status = acpi_evaluate_integer(device->dev->handle, buf, in acpi_video_device_lcd_get_level_current()
616 i < device->brightness->count; i++) in acpi_video_device_lcd_get_level_current()
617 if (device->brightness->levels[i] == *level) { in acpi_video_device_lcd_get_level_current()
618 device->brightness->curr = *level; in acpi_video_device_lcd_get_level_current()
628 device->cap._BQC = device->cap._BCQ = 0; in acpi_video_device_lcd_get_level_current()
633 * dev->brightness->curr is a cached value which stores in acpi_video_device_lcd_get_level_current()
639 device->cap._BQC = device->cap._BCQ = 0; in acpi_video_device_lcd_get_level_current()
643 *level = device->brightness->curr; in acpi_video_device_lcd_get_level_current()
661 return -ENODEV; in acpi_video_device_EDID()
667 return -EINVAL; in acpi_video_device_EDID()
669 status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer); in acpi_video_device_EDID()
671 return -ENODEV; in acpi_video_device_EDID()
675 if (obj && obj->type == ACPI_TYPE_BUFFER) in acpi_video_device_EDID()
679 status = -EFAULT; in acpi_video_device_EDID()
703 * - the power changes from AC to DC (ACPI appendix B)
704 * - a brightness hotkey gets pressed (implied by Win7/8 backlight docs)
707 * - the power changes from AC to DC (ACPI appendix B)
708 * - a brightness hotkey gets pressed (implied by Win7/8 backlight docs)
710 * -EINVAL wrong arg.
718 if (!video->cap._DOS) in acpi_video_bus_DOS()
722 return -EINVAL; in acpi_video_bus_DOS()
723 video->dos_setting = (lcd_flag << 2) | bios_flag; in acpi_video_bus_DOS()
724 status = acpi_execute_simple_method(video->device->handle, "_DOS", in acpi_video_bus_DOS()
727 return -EIO; in acpi_video_bus_DOS()
739 return *(int *)a - *(int *)b; in acpi_video_cmp_level()
752 struct acpi_video_device_brightness *br = device->brightness; in acpi_video_bqc_quirk()
757 /* don't mess with existing known broken systems */ in acpi_video_bqc_quirk()
767 * (br->levels[2]) is likely to be 0, and if the number of levels in acpi_video_bqc_quirk()
784 * xbacklight -set 10; xbacklight -set 20; in acpi_video_bqc_quirk()
792 ? br->levels[ACPI_VIDEO_FIRST_LEVEL + 1] in acpi_video_bqc_quirk()
805 if (level < br->count) { in acpi_video_bqc_quirk()
806 if (br->flags._BCL_reversed) in acpi_video_bqc_quirk()
807 level = br->count - ACPI_VIDEO_FIRST_LEVEL - 1 - level; in acpi_video_bqc_quirk()
808 if (br->levels[level + ACPI_VIDEO_FIRST_LEVEL] == test_level) in acpi_video_bqc_quirk()
809 br->flags._BQC_use_index = 1; in acpi_video_bqc_quirk()
812 if (!br->flags._BQC_use_index) in acpi_video_bqc_quirk()
813 device->cap._BQC = device->cap._BCQ = 0; in acpi_video_bqc_quirk()
830 if (!ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device->handle, in acpi_video_get_levels()
834 result = -ENODEV; in acpi_video_get_levels()
838 if (obj->package.count < ACPI_VIDEO_FIRST_LEVEL) { in acpi_video_get_levels()
839 result = -EINVAL; in acpi_video_get_levels()
846 result = -ENOMEM; in acpi_video_get_levels()
855 br->levels = kmalloc_array(obj->package.count + ACPI_VIDEO_FIRST_LEVEL, in acpi_video_get_levels()
856 sizeof(*br->levels), in acpi_video_get_levels()
858 if (!br->levels) { in acpi_video_get_levels()
859 result = -ENOMEM; in acpi_video_get_levels()
863 for (i = 0; i < obj->package.count; i++) { in acpi_video_get_levels()
864 o = (union acpi_object *)&obj->package.elements[i]; in acpi_video_get_levels()
865 if (o->type != ACPI_TYPE_INTEGER) { in acpi_video_get_levels()
869 value = (u32) o->integer.value; in acpi_video_get_levels()
872 && br->levels[count - 1] == value) in acpi_video_get_levels()
875 br->levels[count] = value; in acpi_video_get_levels()
877 if (br->levels[count] > max_level) in acpi_video_get_levels()
878 max_level = br->levels[count]; in acpi_video_get_levels()
889 if (br->levels[i] == br->levels[ACPI_VIDEO_AC_LEVEL]) in acpi_video_get_levels()
891 if (br->levels[i] == br->levels[ACPI_VIDEO_BATTERY_LEVEL]) in acpi_video_get_levels()
896 level_ac_battery = ACPI_VIDEO_FIRST_LEVEL - level_ac_battery; in acpi_video_get_levels()
897 br->flags._BCL_no_ac_battery_levels = 1; in acpi_video_get_levels()
898 for (i = (count - 1 + level_ac_battery); in acpi_video_get_levels()
899 i >= ACPI_VIDEO_FIRST_LEVEL; i--) in acpi_video_get_levels()
900 br->levels[i] = br->levels[i - level_ac_battery]; in acpi_video_get_levels()
906 if (max_level == br->levels[ACPI_VIDEO_FIRST_LEVEL]) { in acpi_video_get_levels()
907 br->flags._BCL_reversed = 1; in acpi_video_get_levels()
908 sort(&br->levels[ACPI_VIDEO_FIRST_LEVEL], in acpi_video_get_levels()
909 count - ACPI_VIDEO_FIRST_LEVEL, in acpi_video_get_levels()
910 sizeof(br->levels[ACPI_VIDEO_FIRST_LEVEL]), in acpi_video_get_levels()
912 } else if (max_level != br->levels[count - 1]) in acpi_video_get_levels()
916 br->count = count; in acpi_video_get_levels()
937 * Allocate and initialize device->brightness.
948 result = acpi_video_get_levels(device->dev, &br, &max_level); in acpi_video_init_brightness()
951 device->brightness = br; in acpi_video_init_brightness()
954 br->curr = level = max_level; in acpi_video_init_brightness()
956 if (!device->cap._BQC) in acpi_video_init_brightness()
968 * cap._BQC may get cleared due to _BQC is found to be broken in acpi_video_init_brightness()
971 if (!device->cap._BQC) in acpi_video_init_brightness()
981 for (i = ACPI_VIDEO_FIRST_LEVEL; i < br->count; i++) in acpi_video_init_brightness()
982 if (level == br->levels[i]) in acpi_video_init_brightness()
984 if (i == br->count || !level) in acpi_video_init_brightness()
994 br->count - ACPI_VIDEO_FIRST_LEVEL)); in acpi_video_init_brightness()
998 kfree(br->levels); in acpi_video_init_brightness()
1000 device->brightness = NULL; in acpi_video_init_brightness()
1017 if (acpi_has_method(device->dev->handle, "_ADR")) in acpi_video_device_find_cap()
1018 device->cap._ADR = 1; in acpi_video_device_find_cap()
1019 if (acpi_has_method(device->dev->handle, "_BCL")) in acpi_video_device_find_cap()
1020 device->cap._BCL = 1; in acpi_video_device_find_cap()
1021 if (acpi_has_method(device->dev->handle, "_BCM")) in acpi_video_device_find_cap()
1022 device->cap._BCM = 1; in acpi_video_device_find_cap()
1023 if (acpi_has_method(device->dev->handle, "_BQC")) { in acpi_video_device_find_cap()
1024 device->cap._BQC = 1; in acpi_video_device_find_cap()
1025 } else if (acpi_has_method(device->dev->handle, "_BCQ")) { in acpi_video_device_find_cap()
1027 device->cap._BCQ = 1; in acpi_video_device_find_cap()
1030 if (acpi_has_method(device->dev->handle, "_DDC")) in acpi_video_device_find_cap()
1031 device->cap._DDC = 1; in acpi_video_device_find_cap()
1046 if (acpi_has_method(video->device->handle, "_DOS")) in acpi_video_bus_find_cap()
1047 video->cap._DOS = 1; in acpi_video_bus_find_cap()
1048 if (acpi_has_method(video->device->handle, "_DOD")) in acpi_video_bus_find_cap()
1049 video->cap._DOD = 1; in acpi_video_bus_find_cap()
1050 if (acpi_has_method(video->device->handle, "_ROM")) in acpi_video_bus_find_cap()
1051 video->cap._ROM = 1; in acpi_video_bus_find_cap()
1052 if (acpi_has_method(video->device->handle, "_GPD")) in acpi_video_bus_find_cap()
1053 video->cap._GPD = 1; in acpi_video_bus_find_cap()
1054 if (acpi_has_method(video->device->handle, "_SPD")) in acpi_video_bus_find_cap()
1055 video->cap._SPD = 1; in acpi_video_bus_find_cap()
1056 if (acpi_has_method(video->device->handle, "_VPO")) in acpi_video_bus_find_cap()
1057 video->cap._VPO = 1; in acpi_video_bus_find_cap()
1067 acpi_status status = -ENOENT; in acpi_video_bus_check()
1071 return -EINVAL; in acpi_video_bus_check()
1073 dev = acpi_get_pci_dev(video->device->handle); in acpi_video_bus_check()
1075 return -ENODEV; in acpi_video_bus_check()
1084 if (video->cap._DOS || video->cap._DOD) { in acpi_video_bus_check()
1085 if (!video->cap._DOS) { in acpi_video_bus_check()
1088 acpi_device_bid(video->device)); in acpi_video_bus_check()
1090 video->flags.multihead = 1; in acpi_video_bus_check()
1095 if (video->cap._ROM) { in acpi_video_bus_check()
1096 video->flags.rom = 1; in acpi_video_bus_check()
1101 if (video->cap._GPD && video->cap._SPD && video->cap._VPO) { in acpi_video_bus_check()
1102 video->flags.post = 1; in acpi_video_bus_check()
1110 * --------------------------------------------------------------------------
1112 * --------------------------------------------------------------------------
1122 for (i = 0; i < video->attached_count; i++) { in acpi_video_get_device_attr()
1123 ids = &video->attached_array[i]; in acpi_video_get_device_attr()
1124 if ((ids->value.int_val & 0xffff) == device_id) in acpi_video_get_device_attr()
1125 return &ids->value.attrib; in acpi_video_get_device_attr()
1138 for (i = 0; i < video->attached_count; i++) { in acpi_video_get_device_type()
1139 ids = &video->attached_array[i]; in acpi_video_get_device_type()
1140 if ((ids->value.int_val & 0xffff) == device_id) in acpi_video_get_device_type()
1141 return ids->value.int_val; in acpi_video_get_device_type()
1157 acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id); in acpi_video_bus_get_one_device()
1164 return -ENOMEM; in acpi_video_bus_get_one_device()
1168 device->driver_data = data; in acpi_video_bus_get_one_device()
1170 data->device_id = device_id; in acpi_video_bus_get_one_device()
1171 data->video = video; in acpi_video_bus_get_one_device()
1172 data->dev = device; in acpi_video_bus_get_one_device()
1173 INIT_DELAYED_WORK(&data->switch_brightness_work, in acpi_video_bus_get_one_device()
1178 if (attribute && (attribute->device_id_scheme || device_id_scheme)) { in acpi_video_bus_get_one_device()
1179 switch (attribute->display_type) { in acpi_video_bus_get_one_device()
1181 data->flags.crt = 1; in acpi_video_bus_get_one_device()
1184 data->flags.tvout = 1; in acpi_video_bus_get_one_device()
1187 data->flags.dvi = 1; in acpi_video_bus_get_one_device()
1190 data->flags.lcd = 1; in acpi_video_bus_get_one_device()
1193 data->flags.unknown = 1; in acpi_video_bus_get_one_device()
1196 if (attribute->bios_can_detect) in acpi_video_bus_get_one_device()
1197 data->flags.bios = 1; in acpi_video_bus_get_one_device()
1201 /* Ignore bits 16 and 18-20 */ in acpi_video_bus_get_one_device()
1204 data->flags.crt = 1; in acpi_video_bus_get_one_device()
1207 data->flags.lcd = 1; in acpi_video_bus_get_one_device()
1210 data->flags.tvout = 1; in acpi_video_bus_get_one_device()
1213 data->flags.unknown = 1; in acpi_video_bus_get_one_device()
1220 mutex_lock(&video->device_list_lock); in acpi_video_bus_get_one_device()
1221 list_add_tail(&data->entry, &video->video_device_list); in acpi_video_bus_get_one_device()
1222 mutex_unlock(&video->device_list_lock); in acpi_video_bus_get_one_device()
1243 mutex_lock(&video->device_list_lock); in acpi_video_device_rebind()
1245 list_for_each_entry(dev, &video->video_device_list, entry) in acpi_video_device_rebind()
1248 mutex_unlock(&video->device_list_lock); in acpi_video_device_rebind()
1271 for (i = 0; i < video->attached_count; i++) { in acpi_video_device_bind()
1272 ids = &video->attached_array[i]; in acpi_video_device_bind()
1273 if (device->device_id == (ids->value.int_val & 0xffff)) { in acpi_video_device_bind()
1274 ids->bind_info = device; in acpi_video_device_bind()
1282 struct acpi_video_bus *video = device->video; in acpi_video_device_in_dod()
1286 * If we have a broken _DOD or we have more than 8 output devices in acpi_video_device_in_dod()
1290 if (!video->attached_count || video->child_count > 8) in acpi_video_device_in_dod()
1293 for (i = 0; i < video->attached_count; i++) { in acpi_video_device_in_dod()
1294 if ((video->attached_array[i].value.int_val & 0xfff) == in acpi_video_device_in_dod()
1295 (device->device_id & 0xfff)) in acpi_video_device_in_dod()
1323 if (!video->cap._DOD) in acpi_video_device_enumerate()
1326 status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer); in acpi_video_device_enumerate()
1333 if (!dod || (dod->type != ACPI_TYPE_PACKAGE)) { in acpi_video_device_enumerate()
1335 status = -EFAULT; in acpi_video_device_enumerate()
1340 dod->package.count)); in acpi_video_device_enumerate()
1342 active_list = kcalloc(1 + dod->package.count, in acpi_video_device_enumerate()
1346 status = -ENOMEM; in acpi_video_device_enumerate()
1351 for (i = 0; i < dod->package.count; i++) { in acpi_video_device_enumerate()
1352 obj = &dod->package.elements[i]; in acpi_video_device_enumerate()
1354 if (obj->type != ACPI_TYPE_INTEGER) { in acpi_video_device_enumerate()
1360 active_list[count].value.int_val = obj->integer.value; in acpi_video_device_enumerate()
1363 (int)obj->integer.value)); in acpi_video_device_enumerate()
1367 kfree(video->attached_array); in acpi_video_device_enumerate()
1369 video->attached_array = active_list; in acpi_video_device_enumerate()
1370 video->attached_count = count; in acpi_video_device_enumerate()
1385 for (i = ACPI_VIDEO_FIRST_LEVEL; i < device->brightness->count; i++) { in acpi_video_get_next_level()
1386 l = device->brightness->levels[i]; in acpi_video_get_next_level()
1387 if (abs(l - level_current) < abs(delta)) { in acpi_video_get_next_level()
1388 delta = l - level_current; in acpi_video_get_next_level()
1395 for (i = ACPI_VIDEO_FIRST_LEVEL; i < device->brightness->count; i++) { in acpi_video_get_next_level()
1396 l = device->brightness->levels[i]; in acpi_video_get_next_level()
1428 int event = device->switch_brightness_event; in acpi_video_switch_brightness()
1429 int result = -EINVAL; in acpi_video_switch_brightness()
1432 if (!device->backlight) in acpi_video_switch_brightness()
1435 if (!device->brightness) in acpi_video_switch_brightness()
1449 backlight_force_update(device->backlight, in acpi_video_switch_brightness()
1467 return -EINVAL; in acpi_video_get_edid()
1471 for (i = 0; i < video->attached_count; i++) { in acpi_video_get_edid()
1472 video_device = video->attached_array[i].bind_info; in acpi_video_get_edid()
1478 if (!video_device->cap._DDC) in acpi_video_get_edid()
1484 if (!video_device->flags.crt) in acpi_video_get_edid()
1488 if (!video_device->flags.tvout) in acpi_video_get_edid()
1492 if (!video_device->flags.dvi) in acpi_video_get_edid()
1496 if (!video_device->flags.lcd) in acpi_video_get_edid()
1500 } else if (video_device->device_id != device_id) { in acpi_video_get_edid()
1507 buffer->type != ACPI_TYPE_BUFFER) { in acpi_video_get_edid()
1512 buffer->type != ACPI_TYPE_BUFFER) { in acpi_video_get_edid()
1517 *edid = buffer->buffer.pointer; in acpi_video_get_edid()
1521 return -ENODEV; in acpi_video_get_edid()
1534 * of broken _DOD and ignoring returned value here doesn't cause in acpi_video_bus_get_devices()
1539 list_for_each_entry(dev, &device->children, node) { in acpi_video_bus_get_devices()
1543 dev_err(&dev->dev, "Can't attach device\n"); in acpi_video_bus_get_devices()
1546 video->child_count++; in acpi_video_bus_get_devices()
1575 if (!video || !video->input) in acpi_video_bus_notify()
1578 input = video->input; in acpi_video_bus_notify()
1629 video_device->switch_brightness_event = event; in brightness_switch_event()
1630 schedule_delayed_work(&video_device->switch_brightness_work, HZ / 10); in brightness_switch_event()
1644 device = video_device->dev; in acpi_video_device_notify()
1645 bus = video_device->video; in acpi_video_device_notify()
1646 input = bus->input; in acpi_video_device_notify()
1649 if (video_device->backlight) in acpi_video_device_notify()
1650 backlight_force_update(video_device->backlight, in acpi_video_device_notify()
1711 dev_info(&video->device->dev, "Restoring backlight state\n"); in acpi_video_resume()
1713 for (i = 0; i < video->attached_count; i++) { in acpi_video_resume()
1714 video_device = video->attached_array[i].bind_info; in acpi_video_resume()
1715 if (video_device && video_device->brightness) in acpi_video_resume()
1717 video_device->brightness->curr); in acpi_video_resume()
1731 if (handle == device->handle) in acpi_video_bus_match()
1766 acpi_get_parent(device->dev->handle, &acpi_parent); in acpi_video_dev_register_backlight()
1770 parent = &pdev->dev; in acpi_video_dev_register_backlight()
1777 device->brightness->count - ACPI_VIDEO_FIRST_LEVEL - 1; in acpi_video_dev_register_backlight()
1778 device->backlight = backlight_device_register(name, in acpi_video_dev_register_backlight()
1784 if (IS_ERR(device->backlight)) { in acpi_video_dev_register_backlight()
1785 device->backlight = NULL; in acpi_video_dev_register_backlight()
1793 device->backlight->props.brightness = in acpi_video_dev_register_backlight()
1794 acpi_video_get_brightness(device->backlight); in acpi_video_dev_register_backlight()
1796 device->cooling_dev = thermal_cooling_device_register("LCD", in acpi_video_dev_register_backlight()
1797 device->dev, &video_cooling_ops); in acpi_video_dev_register_backlight()
1798 if (IS_ERR(device->cooling_dev)) { in acpi_video_dev_register_backlight()
1803 * -- dtor in acpi_video_dev_register_backlight()
1805 device->cooling_dev = NULL; in acpi_video_dev_register_backlight()
1809 dev_info(&device->dev->dev, "registered as cooling_device%d\n", in acpi_video_dev_register_backlight()
1810 device->cooling_dev->id); in acpi_video_dev_register_backlight()
1811 result = sysfs_create_link(&device->dev->dev.kobj, in acpi_video_dev_register_backlight()
1812 &device->cooling_dev->device.kobj, in acpi_video_dev_register_backlight()
1816 result = sysfs_create_link(&device->cooling_dev->device.kobj, in acpi_video_dev_register_backlight()
1817 &device->dev->dev.kobj, "device"); in acpi_video_dev_register_backlight()
1827 mutex_lock(&video->device_list_lock); in acpi_video_run_bcl_for_osi()
1828 list_for_each_entry(dev, &video->video_device_list, entry) { in acpi_video_run_bcl_for_osi()
1829 if (!acpi_video_device_lcd_query_levels(dev->dev->handle, &levels)) in acpi_video_run_bcl_for_osi()
1832 mutex_unlock(&video->device_list_lock); in acpi_video_run_bcl_for_osi()
1842 dev_dbg(&dev->dev->dev, "not in _DOD list, ignore\n"); in acpi_video_should_register_backlight()
1847 return dev->flags.lcd; in acpi_video_should_register_backlight()
1855 if (video->backlight_registered) in acpi_video_bus_register_backlight()
1863 mutex_lock(&video->device_list_lock); in acpi_video_bus_register_backlight()
1864 list_for_each_entry(dev, &video->video_device_list, entry) { in acpi_video_bus_register_backlight()
1868 mutex_unlock(&video->device_list_lock); in acpi_video_bus_register_backlight()
1870 video->backlight_registered = true; in acpi_video_bus_register_backlight()
1872 video->pm_nb.notifier_call = acpi_video_resume; in acpi_video_bus_register_backlight()
1873 video->pm_nb.priority = 0; in acpi_video_bus_register_backlight()
1874 return register_pm_notifier(&video->pm_nb); in acpi_video_bus_register_backlight()
1879 if (device->backlight) { in acpi_video_dev_unregister_backlight()
1880 backlight_device_unregister(device->backlight); in acpi_video_dev_unregister_backlight()
1881 device->backlight = NULL; in acpi_video_dev_unregister_backlight()
1883 if (device->brightness) { in acpi_video_dev_unregister_backlight()
1884 kfree(device->brightness->levels); in acpi_video_dev_unregister_backlight()
1885 kfree(device->brightness); in acpi_video_dev_unregister_backlight()
1886 device->brightness = NULL; in acpi_video_dev_unregister_backlight()
1888 if (device->cooling_dev) { in acpi_video_dev_unregister_backlight()
1889 sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling"); in acpi_video_dev_unregister_backlight()
1890 sysfs_remove_link(&device->cooling_dev->device.kobj, "device"); in acpi_video_dev_unregister_backlight()
1891 thermal_cooling_device_unregister(device->cooling_dev); in acpi_video_dev_unregister_backlight()
1892 device->cooling_dev = NULL; in acpi_video_dev_unregister_backlight()
1901 if (!video->backlight_registered) in acpi_video_bus_unregister_backlight()
1904 error = unregister_pm_notifier(&video->pm_nb); in acpi_video_bus_unregister_backlight()
1906 mutex_lock(&video->device_list_lock); in acpi_video_bus_unregister_backlight()
1907 list_for_each_entry(dev, &video->video_device_list, entry) in acpi_video_bus_unregister_backlight()
1909 mutex_unlock(&video->device_list_lock); in acpi_video_bus_unregister_backlight()
1911 video->backlight_registered = false; in acpi_video_bus_unregister_backlight()
1919 struct acpi_device *adev = device->dev; in acpi_video_dev_add_notify_handler()
1921 status = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, in acpi_video_dev_add_notify_handler()
1924 dev_err(&adev->dev, "Error installing notify handler\n"); in acpi_video_dev_add_notify_handler()
1926 device->flags.notify = 1; in acpi_video_dev_add_notify_handler()
1935 video->input = input = input_allocate_device(); in acpi_video_bus_add_notify_handler()
1937 error = -ENOMEM; in acpi_video_bus_add_notify_handler()
1945 snprintf(video->phys, sizeof(video->phys), in acpi_video_bus_add_notify_handler()
1946 "%s/video/input0", acpi_device_hid(video->device)); in acpi_video_bus_add_notify_handler()
1948 input->name = acpi_device_name(video->device); in acpi_video_bus_add_notify_handler()
1949 input->phys = video->phys; in acpi_video_bus_add_notify_handler()
1950 input->id.bustype = BUS_HOST; in acpi_video_bus_add_notify_handler()
1951 input->id.product = 0x06; in acpi_video_bus_add_notify_handler()
1952 input->dev.parent = &video->device->dev; in acpi_video_bus_add_notify_handler()
1953 input->evbit[0] = BIT(EV_KEY); in acpi_video_bus_add_notify_handler()
1954 set_bit(KEY_SWITCHVIDEOMODE, input->keybit); in acpi_video_bus_add_notify_handler()
1955 set_bit(KEY_VIDEO_NEXT, input->keybit); in acpi_video_bus_add_notify_handler()
1956 set_bit(KEY_VIDEO_PREV, input->keybit); in acpi_video_bus_add_notify_handler()
1957 set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); in acpi_video_bus_add_notify_handler()
1958 set_bit(KEY_BRIGHTNESSUP, input->keybit); in acpi_video_bus_add_notify_handler()
1959 set_bit(KEY_BRIGHTNESSDOWN, input->keybit); in acpi_video_bus_add_notify_handler()
1960 set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); in acpi_video_bus_add_notify_handler()
1961 set_bit(KEY_DISPLAY_OFF, input->keybit); in acpi_video_bus_add_notify_handler()
1967 mutex_lock(&video->device_list_lock); in acpi_video_bus_add_notify_handler()
1968 list_for_each_entry(dev, &video->video_device_list, entry) in acpi_video_bus_add_notify_handler()
1970 mutex_unlock(&video->device_list_lock); in acpi_video_bus_add_notify_handler()
1978 video->input = NULL; in acpi_video_bus_add_notify_handler()
1985 if (dev->flags.notify) { in acpi_video_dev_remove_notify_handler()
1986 acpi_remove_notify_handler(dev->dev->handle, ACPI_DEVICE_NOTIFY, in acpi_video_dev_remove_notify_handler()
1988 dev->flags.notify = 0; in acpi_video_dev_remove_notify_handler()
1996 mutex_lock(&video->device_list_lock); in acpi_video_bus_remove_notify_handler()
1997 list_for_each_entry(dev, &video->video_device_list, entry) in acpi_video_bus_remove_notify_handler()
1999 mutex_unlock(&video->device_list_lock); in acpi_video_bus_remove_notify_handler()
2002 input_unregister_device(video->input); in acpi_video_bus_remove_notify_handler()
2003 video->input = NULL; in acpi_video_bus_remove_notify_handler()
2010 mutex_lock(&video->device_list_lock); in acpi_video_bus_put_devices()
2011 list_for_each_entry_safe(dev, next, &video->video_device_list, entry) { in acpi_video_bus_put_devices()
2012 list_del(&dev->entry); in acpi_video_bus_put_devices()
2015 mutex_unlock(&video->device_list_lock); in acpi_video_bus_put_devices()
2029 device->parent->handle, 1, in acpi_video_bus_add()
2039 return -ENODEV; in acpi_video_bus_add()
2044 return -ENOMEM; in acpi_video_bus_add()
2047 if (!strcmp(device->pnp.bus_id, "VID")) { in acpi_video_bus_add()
2049 device->pnp.bus_id[3] = '0' + instance; in acpi_video_bus_add()
2053 if (!strcmp(device->pnp.bus_id, "VGA")) { in acpi_video_bus_add()
2055 device->pnp.bus_id[3] = '0' + instance; in acpi_video_bus_add()
2059 video->device = device; in acpi_video_bus_add()
2062 device->driver_data = video; in acpi_video_bus_add()
2069 mutex_init(&video->device_list_lock); in acpi_video_bus_add()
2070 INIT_LIST_HEAD(&video->video_device_list); in acpi_video_bus_add()
2076 printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", in acpi_video_bus_add()
2078 video->flags.multihead ? "yes" : "no", in acpi_video_bus_add()
2079 video->flags.rom ? "yes" : "no", in acpi_video_bus_add()
2080 video->flags.post ? "yes" : "no"); in acpi_video_bus_add()
2082 list_add_tail(&video->entry, &video_bus_head); in acpi_video_bus_add()
2092 kfree(video->attached_array); in acpi_video_bus_add()
2095 device->driver_data = NULL; in acpi_video_bus_add()
2106 return -EINVAL; in acpi_video_bus_remove()
2115 list_del(&video->entry); in acpi_video_bus_remove()
2118 kfree(video->attached_array); in acpi_video_bus_remove()
2126 if (dev->device == 0x00D1) in is_i740()
2128 if (dev->device == 0x7000) in is_i740()
2140 if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) in intel_opregion_present()
2142 if (dev->vendor != PCI_VENDOR_ID_INTEL) in intel_opregion_present()
2144 /* We don't want to poke around undefined i740 registers */ in intel_opregion_present()
2155 /* Check if the chassis-type indicates there is no builtin LCD panel */
2202 if (only_lcd == -1) { in acpi_video_register()
2276 * a broken BIOS) so that i915.ko can still be loaded on such in acpi_video_init()
2279 * acpi_video_register() will report -ENODEV later as well due in acpi_video_init()