Lines Matching +full:1 +full:br +full:- +full:100
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 report_key_events = -1;
56 "0: none, 1: output changes, 2: brightness changes, 3: all");
58 static int hw_changes_brightness = -1;
61 "Set this to 1 on buggy hw which changes the brightness itself when "
62 "a hotkey is pressed: -1: auto, 0: normal 1: hw-changes-brightness");
112 u8 multihead:1; /* can switch video heads */
113 u8 rom:1; /* can retrieve a video rom */
114 u8 post:1; /* can configure the head to */
119 u8 _DOS:1; /* Enable/Disable output switching */
120 u8 _DOD:1; /* Enumerate all devices attached to display adapter */
121 u8 _ROM:1; /* Get ROM Data */
122 u8 _GPD:1; /* Get POST Device */
123 u8 _SPD:1; /* Set POST Device */
124 u8 _VPO:1; /* Video POST Options */
129 u32 display_index:4; /* A zero-based instance of the Display */
133 u32 bios_can_detect:1; /* BIOS can detect the device */
134 u32 depend_on_vga:1; /* Non-VGA output device whose power is related to
136 u32 pipe_id:3; /* For VGA multiple-head devices. */
146 u32 device_id_scheme:1;
175 u8 crt:1;
176 u8 lcd:1;
177 u8 tvout:1;
178 u8 dvi:1;
179 u8 bios:1;
180 u8 unknown:1;
181 u8 notify:1;
182 u8 reserved:1;
186 u8 _ADR:1; /* Return the unique ID */
187 u8 _BCL:1; /* Query list of brightness control levels supported */
188 u8 _BCM:1; /* Set the brightness level */
189 u8 _BQC:1; /* Get current brightness level */
190 u8 _BCQ:1; /* Some buggy BIOS uses _BCQ instead of _BQC */
191 u8 _DDC:1; /* Return the EDID for this device */
230 return -EINVAL; in acpi_video_get_brightness()
231 for (i = ACPI_VIDEO_FIRST_LEVEL; i < vd->brightness->count; i++) { in acpi_video_get_brightness()
232 if (vd->brightness->levels[i] == cur_level) in acpi_video_get_brightness()
233 return i - ACPI_VIDEO_FIRST_LEVEL; in acpi_video_get_brightness()
240 int request_level = bd->props.brightness + ACPI_VIDEO_FIRST_LEVEL; in acpi_video_set_brightness()
243 cancel_delayed_work(&vd->switch_brightness_work); in acpi_video_set_brightness()
245 vd->brightness->levels[request_level]); in acpi_video_set_brightness()
257 struct acpi_video_device *video = cooling_dev->devdata; in video_get_max_state()
259 *state = video->brightness->count - ACPI_VIDEO_FIRST_LEVEL - 1; in video_get_max_state()
266 struct acpi_video_device *video = cooling_dev->devdata; in video_get_cur_state()
271 return -EINVAL; in video_get_cur_state()
272 for (offset = ACPI_VIDEO_FIRST_LEVEL; offset < video->brightness->count; in video_get_cur_state()
274 if (level == video->brightness->levels[offset]) { in video_get_cur_state()
275 *state = video->brightness->count - offset - 1; in video_get_cur_state()
279 return -EINVAL; in video_get_cur_state()
285 struct acpi_video_device *video = cooling_dev->devdata; in video_set_cur_state()
288 if (state >= video->brightness->count - ACPI_VIDEO_FIRST_LEVEL) in video_set_cur_state()
289 return -EINVAL; in video_set_cur_state()
291 state = video->brightness->count - state; in video_set_cur_state()
292 level = video->brightness->levels[state - 1]; in video_set_cur_state()
303 * --------------------------------------------------------------------------
305 * --------------------------------------------------------------------------
323 if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { in acpi_video_device_lcd_query_levels()
325 status = -EFAULT; in acpi_video_device_lcd_query_levels()
345 status = acpi_execute_simple_method(device->dev->handle, in acpi_video_device_lcd_set_level()
348 acpi_handle_info(device->dev->handle, "_BCM evaluation failed\n"); in acpi_video_device_lcd_set_level()
349 return -EIO; in acpi_video_device_lcd_set_level()
352 device->brightness->curr = level; in acpi_video_device_lcd_set_level()
353 for (state = ACPI_VIDEO_FIRST_LEVEL; state < device->brightness->count; in acpi_video_device_lcd_set_level()
355 if (level == device->brightness->levels[state]) { in acpi_video_device_lcd_set_level()
356 if (device->backlight) in acpi_video_device_lcd_set_level()
357 device->backlight->props.brightness = in acpi_video_device_lcd_set_level()
358 state - ACPI_VIDEO_FIRST_LEVEL; in acpi_video_device_lcd_set_level()
362 acpi_handle_info(device->dev->handle, "Current brightness invalid\n"); in acpi_video_device_lcd_set_level()
363 return -EINVAL; in acpi_video_device_lcd_set_level()
392 if (report_key_events == -1) in video_set_report_key_events()
393 report_key_events = (uintptr_t)id->driver_data; in video_set_report_key_events()
400 if (hw_changes_brightness == -1) in video_hw_changes_brightness()
401 hw_changes_brightness = 1; in video_hw_changes_brightness()
478 * Some machines report wrong key events on the acpi-bus, suppress
481 * events, in this case acpi-video is considered the canonical source
484 * vendor acpi/wmi driver or by using /lib/udev/hwdb.d/60-keyboard.hwdb
537 if (device->brightness->flags._BQC_use_index) { in acpi_video_bqc_value_to_level()
543 if (device->brightness->flags._BCL_reversed) in acpi_video_bqc_value_to_level()
544 bqc_value = device->brightness->count - in acpi_video_bqc_value_to_level()
545 ACPI_VIDEO_FIRST_LEVEL - 1 - bqc_value; in acpi_video_bqc_value_to_level()
547 level = device->brightness->levels[bqc_value + in acpi_video_bqc_value_to_level()
565 if (device->cap._BQC || device->cap._BCQ) { in acpi_video_device_lcd_get_level_current()
566 char *buf = device->cap._BQC ? "_BQC" : "_BCQ"; in acpi_video_device_lcd_get_level_current()
568 status = acpi_evaluate_integer(device->dev->handle, buf, in acpi_video_device_lcd_get_level_current()
583 i < device->brightness->count; i++) in acpi_video_device_lcd_get_level_current()
584 if (device->brightness->levels[i] == *level) { in acpi_video_device_lcd_get_level_current()
585 device->brightness->curr = *level; in acpi_video_device_lcd_get_level_current()
592 acpi_handle_info(device->dev->handle, in acpi_video_device_lcd_get_level_current()
594 device->cap._BQC = device->cap._BCQ = 0; in acpi_video_device_lcd_get_level_current()
599 * dev->brightness->curr is a cached value which stores in acpi_video_device_lcd_get_level_current()
604 acpi_handle_info(device->dev->handle, in acpi_video_device_lcd_get_level_current()
606 device->cap._BQC = device->cap._BCQ = 0; in acpi_video_device_lcd_get_level_current()
610 *level = device->brightness->curr; in acpi_video_device_lcd_get_level_current()
615 * acpi_video_device_EDID() - Get EDID from ACPI _DDC
634 struct acpi_object_list args = { 1, &arg0 }; in acpi_video_device_EDID()
640 return -ENODEV; in acpi_video_device_EDID()
642 return -EINVAL; in acpi_video_device_EDID()
646 status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer); in acpi_video_device_EDID()
648 return -ENODEV; in acpi_video_device_EDID()
656 if (obj && obj->type == ACPI_TYPE_PACKAGE && obj->package.count == 1) in acpi_video_device_EDID()
657 obj = &obj->package.elements[0]; in acpi_video_device_EDID()
659 if (obj && obj->type == ACPI_TYPE_BUFFER) { in acpi_video_device_EDID()
660 *edid = kmemdup(obj->buffer.pointer, obj->buffer.length, GFP_KERNEL); in acpi_video_device_EDID()
661 ret = *edid ? obj->buffer.length : -ENOMEM; in acpi_video_device_EDID()
663 acpi_handle_debug(device->dev->handle, in acpi_video_device_EDID()
665 ret = -EFAULT; in acpi_video_device_EDID()
680 * 1. The system BIOS should automatically switch (toggle) the
689 * - the power changes from AC to DC (ACPI appendix B)
690 * - a brightness hotkey gets pressed (implied by Win7/8 backlight docs)
691 * 1. The system BIOS should NOT automatically control the brightness
693 * - the power changes from AC to DC (ACPI appendix B)
694 * - a brightness hotkey gets pressed (implied by Win7/8 backlight docs)
696 * -EINVAL wrong arg.
704 if (!video->cap._DOS) in acpi_video_bus_DOS()
707 if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) in acpi_video_bus_DOS()
708 return -EINVAL; in acpi_video_bus_DOS()
709 video->dos_setting = (lcd_flag << 2) | bios_flag; in acpi_video_bus_DOS()
710 status = acpi_execute_simple_method(video->device->handle, "_DOS", in acpi_video_bus_DOS()
713 return -EIO; in acpi_video_bus_DOS()
725 return *(int *)a - *(int *)b; in acpi_video_cmp_level()
738 struct acpi_video_device_brightness *br = device->brightness; in acpi_video_bqc_quirk() local
753 * (br->levels[2]) is likely to be 0, and if the number of levels in acpi_video_bqc_quirk()
759 * current_level = max_level = 100 in acpi_video_bqc_quirk()
761 * returned level = 100 in acpi_video_bqc_quirk()
763 * In this case 100 means the level, not the index, and _BCM failed. in acpi_video_bqc_quirk()
765 * level 0 is also 100, so we assume _BQC is indexed, when it's not. in acpi_video_bqc_quirk()
770 * xbacklight -set 10; xbacklight -set 20; in acpi_video_bqc_quirk()
775 * (e.g. 1). in acpi_video_bqc_quirk()
778 ? br->levels[ACPI_VIDEO_FIRST_LEVEL + 1] in acpi_video_bqc_quirk()
791 if (level < br->count) { in acpi_video_bqc_quirk()
792 if (br->flags._BCL_reversed) in acpi_video_bqc_quirk()
793 level = br->count - ACPI_VIDEO_FIRST_LEVEL - 1 - level; in acpi_video_bqc_quirk()
794 if (br->levels[level + ACPI_VIDEO_FIRST_LEVEL] == test_level) in acpi_video_bqc_quirk()
795 br->flags._BQC_use_index = 1; in acpi_video_bqc_quirk()
798 if (!br->flags._BQC_use_index) in acpi_video_bqc_quirk()
799 device->cap._BQC = device->cap._BCQ = 0; in acpi_video_bqc_quirk()
812 struct acpi_video_device_brightness *br = NULL; in acpi_video_get_levels() local
816 if (ACPI_FAILURE(acpi_video_device_lcd_query_levels(device->handle, &obj))) { in acpi_video_get_levels()
817 acpi_handle_debug(device->handle, in acpi_video_get_levels()
819 result = -ENODEV; in acpi_video_get_levels()
823 if (obj->package.count < ACPI_VIDEO_FIRST_LEVEL) { in acpi_video_get_levels()
824 result = -EINVAL; in acpi_video_get_levels()
828 br = kzalloc(sizeof(*br), GFP_KERNEL); in acpi_video_get_levels()
829 if (!br) { in acpi_video_get_levels()
830 result = -ENOMEM; in acpi_video_get_levels()
839 br->levels = kmalloc_array(obj->package.count + ACPI_VIDEO_FIRST_LEVEL, in acpi_video_get_levels()
840 sizeof(*br->levels), in acpi_video_get_levels()
842 if (!br->levels) { in acpi_video_get_levels()
843 result = -ENOMEM; in acpi_video_get_levels()
847 for (i = 0; i < obj->package.count; i++) { in acpi_video_get_levels()
848 o = (union acpi_object *)&obj->package.elements[i]; in acpi_video_get_levels()
849 if (o->type != ACPI_TYPE_INTEGER) { in acpi_video_get_levels()
850 acpi_handle_info(device->handle, "Invalid data\n"); in acpi_video_get_levels()
853 value = (u32) o->integer.value; in acpi_video_get_levels()
856 && br->levels[count - 1] == value) in acpi_video_get_levels()
859 br->levels[count] = value; in acpi_video_get_levels()
861 if (br->levels[count] > max_level) in acpi_video_get_levels()
862 max_level = br->levels[count]; in acpi_video_get_levels()
873 if (br->levels[i] == br->levels[ACPI_VIDEO_AC_LEVEL]) in acpi_video_get_levels()
875 if (br->levels[i] == br->levels[ACPI_VIDEO_BATTERY_LEVEL]) in acpi_video_get_levels()
880 level_ac_battery = ACPI_VIDEO_FIRST_LEVEL - level_ac_battery; in acpi_video_get_levels()
881 br->flags._BCL_no_ac_battery_levels = 1; in acpi_video_get_levels()
882 for (i = (count - 1 + level_ac_battery); in acpi_video_get_levels()
883 i >= ACPI_VIDEO_FIRST_LEVEL; i--) in acpi_video_get_levels()
884 br->levels[i] = br->levels[i - level_ac_battery]; in acpi_video_get_levels()
887 acpi_handle_info(device->handle, in acpi_video_get_levels()
891 if (max_level == br->levels[ACPI_VIDEO_FIRST_LEVEL]) { in acpi_video_get_levels()
892 br->flags._BCL_reversed = 1; in acpi_video_get_levels()
893 sort(&br->levels[ACPI_VIDEO_FIRST_LEVEL], in acpi_video_get_levels()
894 count - ACPI_VIDEO_FIRST_LEVEL, in acpi_video_get_levels()
895 sizeof(br->levels[ACPI_VIDEO_FIRST_LEVEL]), in acpi_video_get_levels()
897 } else if (max_level != br->levels[count - 1]) in acpi_video_get_levels()
898 acpi_handle_info(device->handle, in acpi_video_get_levels()
901 br->count = count; in acpi_video_get_levels()
902 *dev_br = br; in acpi_video_get_levels()
910 kfree(br); in acpi_video_get_levels()
922 * Allocate and initialize device->brightness.
930 struct acpi_video_device_brightness *br = NULL; in acpi_video_init_brightness() local
933 result = acpi_video_get_levels(device->dev, &br, &max_level); in acpi_video_init_brightness()
936 device->brightness = br; in acpi_video_init_brightness()
939 br->curr = level = max_level; in acpi_video_init_brightness()
941 if (!device->cap._BQC) in acpi_video_init_brightness()
956 if (!device->cap._BQC) in acpi_video_init_brightness()
966 for (i = ACPI_VIDEO_FIRST_LEVEL; i < br->count; i++) in acpi_video_init_brightness()
967 if (level == br->levels[i]) in acpi_video_init_brightness()
969 if (i == br->count || !level) in acpi_video_init_brightness()
977 acpi_handle_debug(device->dev->handle, "found %d brightness levels\n", in acpi_video_init_brightness()
978 br->count - ACPI_VIDEO_FIRST_LEVEL); in acpi_video_init_brightness()
983 kfree(br->levels); in acpi_video_init_brightness()
984 kfree(br); in acpi_video_init_brightness()
985 device->brightness = NULL; in acpi_video_init_brightness()
1002 if (acpi_has_method(device->dev->handle, "_ADR")) in acpi_video_device_find_cap()
1003 device->cap._ADR = 1; in acpi_video_device_find_cap()
1004 if (acpi_has_method(device->dev->handle, "_BCL")) in acpi_video_device_find_cap()
1005 device->cap._BCL = 1; in acpi_video_device_find_cap()
1006 if (acpi_has_method(device->dev->handle, "_BCM")) in acpi_video_device_find_cap()
1007 device->cap._BCM = 1; in acpi_video_device_find_cap()
1008 if (acpi_has_method(device->dev->handle, "_BQC")) { in acpi_video_device_find_cap()
1009 device->cap._BQC = 1; in acpi_video_device_find_cap()
1010 } else if (acpi_has_method(device->dev->handle, "_BCQ")) { in acpi_video_device_find_cap()
1011 acpi_handle_info(device->dev->handle, in acpi_video_device_find_cap()
1013 device->cap._BCQ = 1; in acpi_video_device_find_cap()
1016 if (acpi_has_method(device->dev->handle, "_DDC")) in acpi_video_device_find_cap()
1017 device->cap._DDC = 1; in acpi_video_device_find_cap()
1032 if (acpi_has_method(video->device->handle, "_DOS")) in acpi_video_bus_find_cap()
1033 video->cap._DOS = 1; in acpi_video_bus_find_cap()
1034 if (acpi_has_method(video->device->handle, "_DOD")) in acpi_video_bus_find_cap()
1035 video->cap._DOD = 1; in acpi_video_bus_find_cap()
1036 if (acpi_has_method(video->device->handle, "_ROM")) in acpi_video_bus_find_cap()
1037 video->cap._ROM = 1; in acpi_video_bus_find_cap()
1038 if (acpi_has_method(video->device->handle, "_GPD")) in acpi_video_bus_find_cap()
1039 video->cap._GPD = 1; in acpi_video_bus_find_cap()
1040 if (acpi_has_method(video->device->handle, "_SPD")) in acpi_video_bus_find_cap()
1041 video->cap._SPD = 1; in acpi_video_bus_find_cap()
1042 if (acpi_has_method(video->device->handle, "_VPO")) in acpi_video_bus_find_cap()
1043 video->cap._VPO = 1; in acpi_video_bus_find_cap()
1053 acpi_status status = -ENOENT; in acpi_video_bus_check()
1057 return -EINVAL; in acpi_video_bus_check()
1059 dev = acpi_get_pci_dev(video->device->handle); in acpi_video_bus_check()
1061 return -ENODEV; in acpi_video_bus_check()
1070 if (video->cap._DOS || video->cap._DOD) { in acpi_video_bus_check()
1071 if (!video->cap._DOS) { in acpi_video_bus_check()
1073 acpi_device_bid(video->device)); in acpi_video_bus_check()
1075 video->flags.multihead = 1; in acpi_video_bus_check()
1080 if (video->cap._ROM) { in acpi_video_bus_check()
1081 video->flags.rom = 1; in acpi_video_bus_check()
1086 if (video->cap._GPD && video->cap._SPD && video->cap._VPO) { in acpi_video_bus_check()
1087 video->flags.post = 1; in acpi_video_bus_check()
1095 * --------------------------------------------------------------------------
1097 * --------------------------------------------------------------------------
1107 for (i = 0; i < video->attached_count; i++) { in acpi_video_get_device_attr()
1108 ids = &video->attached_array[i]; in acpi_video_get_device_attr()
1109 if ((ids->value.int_val & 0xffff) == device_id) in acpi_video_get_device_attr()
1110 return &ids->value.attrib; in acpi_video_get_device_attr()
1123 for (i = 0; i < video->attached_count; i++) { in acpi_video_get_device_type()
1124 ids = &video->attached_array[i]; in acpi_video_get_device_type()
1125 if ((ids->value.int_val & 0xffff) == device_id) in acpi_video_get_device_type()
1126 return ids->value.int_val; in acpi_video_get_device_type()
1141 status = acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id); in acpi_video_bus_get_one_device()
1148 dev_dbg(&device->dev, "Cannot attach\n"); in acpi_video_bus_get_one_device()
1149 return -ENOMEM; in acpi_video_bus_get_one_device()
1155 data->device_id = device_id; in acpi_video_bus_get_one_device()
1156 data->video = video; in acpi_video_bus_get_one_device()
1157 data->dev = device; in acpi_video_bus_get_one_device()
1158 INIT_DELAYED_WORK(&data->switch_brightness_work, in acpi_video_bus_get_one_device()
1163 if (attribute && (attribute->device_id_scheme || device_id_scheme)) { in acpi_video_bus_get_one_device()
1164 switch (attribute->display_type) { in acpi_video_bus_get_one_device()
1166 data->flags.crt = 1; in acpi_video_bus_get_one_device()
1169 data->flags.tvout = 1; in acpi_video_bus_get_one_device()
1172 data->flags.dvi = 1; in acpi_video_bus_get_one_device()
1175 data->flags.lcd = 1; in acpi_video_bus_get_one_device()
1178 data->flags.unknown = 1; in acpi_video_bus_get_one_device()
1181 if (attribute->bios_can_detect) in acpi_video_bus_get_one_device()
1182 data->flags.bios = 1; in acpi_video_bus_get_one_device()
1186 /* Ignore bits 16 and 18-20 */ in acpi_video_bus_get_one_device()
1189 data->flags.crt = 1; in acpi_video_bus_get_one_device()
1192 data->flags.lcd = 1; in acpi_video_bus_get_one_device()
1195 data->flags.tvout = 1; in acpi_video_bus_get_one_device()
1198 data->flags.unknown = 1; in acpi_video_bus_get_one_device()
1205 if (data->cap._BCM && data->cap._BCL) in acpi_video_bus_get_one_device()
1208 mutex_lock(&video->device_list_lock); in acpi_video_bus_get_one_device()
1209 list_add_tail(&data->entry, &video->video_device_list); in acpi_video_bus_get_one_device()
1210 mutex_unlock(&video->device_list_lock); in acpi_video_bus_get_one_device()
1213 video->child_count++; in acpi_video_bus_get_one_device()
1233 mutex_lock(&video->device_list_lock); in acpi_video_device_rebind()
1235 list_for_each_entry(dev, &video->video_device_list, entry) in acpi_video_device_rebind()
1238 mutex_unlock(&video->device_list_lock); in acpi_video_device_rebind()
1261 for (i = 0; i < video->attached_count; i++) { in acpi_video_device_bind()
1262 ids = &video->attached_array[i]; in acpi_video_device_bind()
1263 if (device->device_id == (ids->value.int_val & 0xffff)) { in acpi_video_device_bind()
1264 ids->bind_info = device; in acpi_video_device_bind()
1265 acpi_handle_debug(video->device->handle, "%s: %d\n", in acpi_video_device_bind()
1273 struct acpi_video_bus *video = device->video; in acpi_video_device_in_dod()
1281 if (!video->attached_count || video->child_count > 8) in acpi_video_device_in_dod()
1284 for (i = 0; i < video->attached_count; i++) { in acpi_video_device_in_dod()
1285 if ((video->attached_array[i].value.int_val & 0xfff) == in acpi_video_device_in_dod()
1286 (device->device_id & 0xfff)) in acpi_video_device_in_dod()
1314 if (!video->cap._DOD) in acpi_video_device_enumerate()
1317 status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer); in acpi_video_device_enumerate()
1319 acpi_handle_info(video->device->handle, in acpi_video_device_enumerate()
1326 if (!dod || (dod->type != ACPI_TYPE_PACKAGE)) { in acpi_video_device_enumerate()
1327 acpi_handle_info(video->device->handle, "Invalid _DOD data\n"); in acpi_video_device_enumerate()
1328 status = -EFAULT; in acpi_video_device_enumerate()
1332 acpi_handle_debug(video->device->handle, "Found %d video heads in _DOD\n", in acpi_video_device_enumerate()
1333 dod->package.count); in acpi_video_device_enumerate()
1335 active_list = kcalloc(1 + dod->package.count, in acpi_video_device_enumerate()
1339 status = -ENOMEM; in acpi_video_device_enumerate()
1344 for (i = 0; i < dod->package.count; i++) { in acpi_video_device_enumerate()
1345 obj = &dod->package.elements[i]; in acpi_video_device_enumerate()
1347 if (obj->type != ACPI_TYPE_INTEGER) { in acpi_video_device_enumerate()
1348 acpi_handle_info(video->device->handle, in acpi_video_device_enumerate()
1353 active_list[count].value.int_val = obj->integer.value; in acpi_video_device_enumerate()
1356 acpi_handle_debug(video->device->handle, in acpi_video_device_enumerate()
1358 (int)obj->integer.value); in acpi_video_device_enumerate()
1363 kfree(video->attached_array); in acpi_video_device_enumerate()
1365 video->attached_array = active_list; in acpi_video_device_enumerate()
1366 video->attached_count = count; in acpi_video_device_enumerate()
1381 for (i = ACPI_VIDEO_FIRST_LEVEL; i < device->brightness->count; i++) { in acpi_video_get_next_level()
1382 l = device->brightness->levels[i]; in acpi_video_get_next_level()
1383 if (abs(l - level_current) < abs(delta)) { in acpi_video_get_next_level()
1384 delta = l - level_current; in acpi_video_get_next_level()
1391 for (i = ACPI_VIDEO_FIRST_LEVEL; i < device->brightness->count; i++) { in acpi_video_get_next_level()
1392 l = device->brightness->levels[i]; in acpi_video_get_next_level()
1424 int event = device->switch_brightness_event; in acpi_video_switch_brightness()
1425 int result = -EINVAL; in acpi_video_switch_brightness()
1428 if (!device->backlight) in acpi_video_switch_brightness()
1431 if (!device->brightness) in acpi_video_switch_brightness()
1445 backlight_force_update(device->backlight, in acpi_video_switch_brightness()
1450 acpi_handle_info(device->dev->handle, in acpi_video_switch_brightness()
1462 return -EINVAL; in acpi_video_get_edid()
1466 for (i = 0; i < video->attached_count; i++) { in acpi_video_get_edid()
1467 video_device = video->attached_array[i].bind_info; in acpi_video_get_edid()
1472 if (!video_device->cap._DDC) in acpi_video_get_edid()
1478 if (!video_device->flags.crt) in acpi_video_get_edid()
1482 if (!video_device->flags.tvout) in acpi_video_get_edid()
1486 if (!video_device->flags.dvi) in acpi_video_get_edid()
1490 if (!video_device->flags.lcd) in acpi_video_get_edid()
1494 } else if (video_device->device_id != device_id) { in acpi_video_get_edid()
1498 for (length = 512; length > 0; length -= 128) { in acpi_video_get_edid()
1505 return -ENODEV; in acpi_video_get_edid()
1532 acpi_osi_is_win8() ? 1 : 0); in acpi_video_bus_start_devices()
1538 acpi_osi_is_win8() ? 0 : 1); in acpi_video_bus_stop_devices()
1548 if (!video || !video->input) in acpi_video_bus_notify()
1551 input = video->input; in acpi_video_bus_notify()
1577 acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n", in acpi_video_bus_notify()
1587 input_report_key(input, keycode, 1); in acpi_video_bus_notify()
1600 video_device->switch_brightness_event = event; in brightness_switch_event()
1601 schedule_delayed_work(&video_device->switch_brightness_work, HZ / 10); in brightness_switch_event()
1615 device = video_device->dev; in acpi_video_device_notify()
1616 bus = video_device->video; in acpi_video_device_notify()
1617 input = bus->input; in acpi_video_device_notify()
1620 if (video_device->backlight) in acpi_video_device_notify()
1621 backlight_force_update(video_device->backlight, in acpi_video_device_notify()
1659 input_report_key(input, keycode, 1); in acpi_video_device_notify()
1679 dev_info(&video->device->dev, "Restoring backlight state\n"); in acpi_video_resume()
1681 for (i = 0; i < video->attached_count; i++) { in acpi_video_resume()
1682 video_device = video->attached_array[i].bind_info; in acpi_video_resume()
1683 if (video_device && video_device->brightness) in acpi_video_resume()
1685 video_device->brightness->curr); in acpi_video_resume()
1700 if (handle == device->handle) in acpi_video_bus_match()
1732 if (ACPI_SUCCESS(acpi_get_parent(device->dev->handle, &acpi_parent))) { in acpi_video_dev_register_backlight()
1735 parent = &pdev->dev; in acpi_video_dev_register_backlight()
1743 device->brightness->count - ACPI_VIDEO_FIRST_LEVEL - 1; in acpi_video_dev_register_backlight()
1744 device->backlight = backlight_device_register(name, in acpi_video_dev_register_backlight()
1750 if (IS_ERR(device->backlight)) { in acpi_video_dev_register_backlight()
1751 device->backlight = NULL; in acpi_video_dev_register_backlight()
1759 device->backlight->props.brightness = in acpi_video_dev_register_backlight()
1760 acpi_video_get_brightness(device->backlight); in acpi_video_dev_register_backlight()
1762 device->cooling_dev = thermal_cooling_device_register("LCD", device, in acpi_video_dev_register_backlight()
1764 if (IS_ERR(device->cooling_dev)) { in acpi_video_dev_register_backlight()
1769 * -- dtor in acpi_video_dev_register_backlight()
1771 device->cooling_dev = NULL; in acpi_video_dev_register_backlight()
1775 dev_info(&device->dev->dev, "registered as cooling_device%d\n", in acpi_video_dev_register_backlight()
1776 device->cooling_dev->id); in acpi_video_dev_register_backlight()
1777 result = sysfs_create_link(&device->dev->dev.kobj, in acpi_video_dev_register_backlight()
1778 &device->cooling_dev->device.kobj, in acpi_video_dev_register_backlight()
1783 result = sysfs_create_link(&device->cooling_dev->device.kobj, in acpi_video_dev_register_backlight()
1784 &device->dev->dev.kobj, "device"); in acpi_video_dev_register_backlight()
1794 mutex_lock(&video->device_list_lock); in acpi_video_run_bcl_for_osi()
1795 list_for_each_entry(dev, &video->video_device_list, entry) { in acpi_video_run_bcl_for_osi()
1796 if (!acpi_video_device_lcd_query_levels(dev->dev->handle, &levels)) in acpi_video_run_bcl_for_osi()
1799 mutex_unlock(&video->device_list_lock); in acpi_video_run_bcl_for_osi()
1809 dev_dbg(&dev->dev->dev, "not in _DOD list, ignore\n"); in acpi_video_should_register_backlight()
1814 return dev->flags.lcd; in acpi_video_should_register_backlight()
1822 if (video->backlight_registered) in acpi_video_bus_register_backlight()
1828 mutex_lock(&video->device_list_lock); in acpi_video_bus_register_backlight()
1829 list_for_each_entry(dev, &video->video_device_list, entry) { in acpi_video_bus_register_backlight()
1833 mutex_unlock(&video->device_list_lock); in acpi_video_bus_register_backlight()
1835 video->backlight_registered = true; in acpi_video_bus_register_backlight()
1837 video->pm_nb.notifier_call = acpi_video_resume; in acpi_video_bus_register_backlight()
1838 video->pm_nb.priority = 0; in acpi_video_bus_register_backlight()
1839 return register_pm_notifier(&video->pm_nb); in acpi_video_bus_register_backlight()
1844 if (device->backlight) { in acpi_video_dev_unregister_backlight()
1845 backlight_device_unregister(device->backlight); in acpi_video_dev_unregister_backlight()
1846 device->backlight = NULL; in acpi_video_dev_unregister_backlight()
1848 if (device->brightness) { in acpi_video_dev_unregister_backlight()
1849 kfree(device->brightness->levels); in acpi_video_dev_unregister_backlight()
1850 kfree(device->brightness); in acpi_video_dev_unregister_backlight()
1851 device->brightness = NULL; in acpi_video_dev_unregister_backlight()
1853 if (device->cooling_dev) { in acpi_video_dev_unregister_backlight()
1854 sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling"); in acpi_video_dev_unregister_backlight()
1855 sysfs_remove_link(&device->cooling_dev->device.kobj, "device"); in acpi_video_dev_unregister_backlight()
1856 thermal_cooling_device_unregister(device->cooling_dev); in acpi_video_dev_unregister_backlight()
1857 device->cooling_dev = NULL; in acpi_video_dev_unregister_backlight()
1866 if (!video->backlight_registered) in acpi_video_bus_unregister_backlight()
1869 error = unregister_pm_notifier(&video->pm_nb); in acpi_video_bus_unregister_backlight()
1871 mutex_lock(&video->device_list_lock); in acpi_video_bus_unregister_backlight()
1872 list_for_each_entry(dev, &video->video_device_list, entry) in acpi_video_bus_unregister_backlight()
1874 mutex_unlock(&video->device_list_lock); in acpi_video_bus_unregister_backlight()
1876 video->backlight_registered = false; in acpi_video_bus_unregister_backlight()
1884 struct acpi_device *adev = device->dev; in acpi_video_dev_add_notify_handler()
1886 status = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, in acpi_video_dev_add_notify_handler()
1889 dev_err(&adev->dev, "Error installing notify handler\n"); in acpi_video_dev_add_notify_handler()
1891 device->flags.notify = 1; in acpi_video_dev_add_notify_handler()
1900 video->input = input = input_allocate_device(); in acpi_video_bus_add_notify_handler()
1902 error = -ENOMEM; in acpi_video_bus_add_notify_handler()
1910 snprintf(video->phys, sizeof(video->phys), in acpi_video_bus_add_notify_handler()
1911 "%s/video/input0", acpi_device_hid(video->device)); in acpi_video_bus_add_notify_handler()
1913 input->name = acpi_device_name(video->device); in acpi_video_bus_add_notify_handler()
1914 input->phys = video->phys; in acpi_video_bus_add_notify_handler()
1915 input->id.bustype = BUS_HOST; in acpi_video_bus_add_notify_handler()
1916 input->id.product = 0x06; in acpi_video_bus_add_notify_handler()
1917 input->dev.parent = &video->device->dev; in acpi_video_bus_add_notify_handler()
1918 input->evbit[0] = BIT(EV_KEY); in acpi_video_bus_add_notify_handler()
1919 set_bit(KEY_SWITCHVIDEOMODE, input->keybit); in acpi_video_bus_add_notify_handler()
1920 set_bit(KEY_VIDEO_NEXT, input->keybit); in acpi_video_bus_add_notify_handler()
1921 set_bit(KEY_VIDEO_PREV, input->keybit); in acpi_video_bus_add_notify_handler()
1922 set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); in acpi_video_bus_add_notify_handler()
1923 set_bit(KEY_BRIGHTNESSUP, input->keybit); in acpi_video_bus_add_notify_handler()
1924 set_bit(KEY_BRIGHTNESSDOWN, input->keybit); in acpi_video_bus_add_notify_handler()
1925 set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); in acpi_video_bus_add_notify_handler()
1926 set_bit(KEY_DISPLAY_OFF, input->keybit); in acpi_video_bus_add_notify_handler()
1932 mutex_lock(&video->device_list_lock); in acpi_video_bus_add_notify_handler()
1933 list_for_each_entry(dev, &video->video_device_list, entry) in acpi_video_bus_add_notify_handler()
1935 mutex_unlock(&video->device_list_lock); in acpi_video_bus_add_notify_handler()
1943 video->input = NULL; in acpi_video_bus_add_notify_handler()
1950 if (dev->flags.notify) { in acpi_video_dev_remove_notify_handler()
1951 acpi_remove_notify_handler(dev->dev->handle, ACPI_DEVICE_NOTIFY, in acpi_video_dev_remove_notify_handler()
1953 dev->flags.notify = 0; in acpi_video_dev_remove_notify_handler()
1961 mutex_lock(&video->device_list_lock); in acpi_video_bus_remove_notify_handler()
1962 list_for_each_entry(dev, &video->video_device_list, entry) in acpi_video_bus_remove_notify_handler()
1964 mutex_unlock(&video->device_list_lock); in acpi_video_bus_remove_notify_handler()
1967 input_unregister_device(video->input); in acpi_video_bus_remove_notify_handler()
1968 video->input = NULL; in acpi_video_bus_remove_notify_handler()
1975 mutex_lock(&video->device_list_lock); in acpi_video_bus_put_devices()
1976 list_for_each_entry_safe(dev, next, &video->video_device_list, entry) { in acpi_video_bus_put_devices()
1977 list_del(&dev->entry); in acpi_video_bus_put_devices()
1980 mutex_unlock(&video->device_list_lock); in acpi_video_bus_put_devices()
1995 acpi_dev_parent(device)->handle, 1, in acpi_video_bus_add()
2002 "parameter \"video.allow_duplicates=1\"" in acpi_video_bus_add()
2005 return -ENODEV; in acpi_video_bus_add()
2010 return -ENOMEM; in acpi_video_bus_add()
2013 if (!strcmp(device->pnp.bus_id, "VID")) { in acpi_video_bus_add()
2015 device->pnp.bus_id[3] = '0' + instance; in acpi_video_bus_add()
2019 if (!strcmp(device->pnp.bus_id, "VGA")) { in acpi_video_bus_add()
2021 device->pnp.bus_id[3] = '0' + instance; in acpi_video_bus_add()
2025 video->device = device; in acpi_video_bus_add()
2028 device->driver_data = video; in acpi_video_bus_add()
2035 mutex_init(&video->device_list_lock); in acpi_video_bus_add()
2036 INIT_LIST_HEAD(&video->video_device_list); in acpi_video_bus_add()
2048 pr_info("%s [%s] (multi-head: %s rom: %s post: %s)\n", in acpi_video_bus_add()
2050 str_yes_no(video->flags.multihead), in acpi_video_bus_add()
2051 str_yes_no(video->flags.rom), in acpi_video_bus_add()
2052 str_yes_no(video->flags.post)); in acpi_video_bus_add()
2054 list_add_tail(&video->entry, &video_bus_head); in acpi_video_bus_add()
2058 * If backlight-type auto-detection is used then a native backlight may in acpi_video_bus_add()
2063 * Register the backlight now when not using auto-detection, so that in acpi_video_bus_add()
2064 * when the kernel cmdline or DMI-quirks are used the backlight will in acpi_video_bus_add()
2087 list_del(&video->entry); 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()
2114 list_del(&video->entry); in acpi_video_bus_remove()
2121 kfree(video->attached_array); in acpi_video_bus_remove()
2127 if (dev->device == 0x00D1) in is_i740()
2128 return 1; in is_i740()
2129 if (dev->device == 0x7000) in is_i740()
2130 return 1; in is_i740()
2141 if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) in intel_opregion_present()
2143 if (dev->vendor != PCI_VENDOR_ID_INTEL) in intel_opregion_present()
2151 opregion = 1; in intel_opregion_present()
2179 register_count = 1; in acpi_video_register()
2231 * acpi_video_register() will report -ENODEV later as well due in acpi_video_init()