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/Linux-v5.15/Documentation/devicetree/bindings/display/
Dsitronix,st7586.txt4 - compatible: "lego,ev3-lcd".
5 - a0-gpios: The A0 signal (since this binding is for serial mode, this is
7 - reset-gpios: Reset pin
10 all mandatory properties described in ../spi/spi-bus.txt must be specified.
13 - rotation: panel rotation in degrees counter clockwise (0,90,180,270)
17 compatible = "lego,ev3-lcd";
19 spi-max-frequency = <10000000>;
20 a0-gpios = <&gpio 43 GPIO_ACTIVE_HIGH>;
21 reset-gpios = <&gpio 80 GPIO_ACTIVE_HIGH>;
Dilitek,ili9225.txt7 - compatible: "vot,v220hf01a-t", "ilitek,ili9225"
8 - rs-gpios: Register select signal
9 - reset-gpios: Reset pin
12 all mandatory properties described in ../spi/spi-bus.txt must be specified.
15 - rotation: panel rotation in degrees counter clockwise (0,90,180,270)
19 compatible = "vot,v220hf01a-t", "ilitek,ili9225";
21 spi-max-frequency = <12000000>;
22 rs-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
23 reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
Dilitek,ili9341.txt7 - compatible: "adafruit,yx240qv29", "ilitek,ili9341"
8 - dc-gpios: D/C pin
9 - reset-gpios: Reset pin
12 all mandatory properties described in ../spi/spi-bus.txt must be specified.
15 - rotation: panel rotation in degrees counter clockwise (0,90,180,270)
16 - backlight: phandle of the backlight device attached to the panel
22 spi-max-frequency = <32000000>;
23 dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
24 reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
Dhimax,hx8357d.txt7 - compatible: "adafruit,yx350hv15", "himax,hx8357d"
8 - dc-gpios: D/C pin
9 - reg: address of the panel on the SPI bus
12 all mandatory properties described in ../spi/spi-bus.txt must be specified.
15 - rotation: panel rotation in degrees counter clockwise (0,90,180,270)
16 - backlight: phandle of the backlight device attached to the panel
22 spi-max-frequency = <32000000>;
23 dc-gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>;
Dmulti-inno,mi0283qt.txt1 Multi-Inno MI0283QT display panel
4 - compatible: "multi-inno,mi0283qt".
7 all mandatory properties described in ../spi/spi-bus.txt must be specified.
10 - dc-gpios: D/C pin. The presence/absence of this GPIO determines
12 - present: IM=x110 4-wire 8-bit data serial interface
13 - absent: IM=x101 3-wire 9-bit data serial interface
14 - reset-gpios: Reset pin
15 - power-supply: A regulator node for the supply voltage.
16 - backlight: phandle of the backlight device attached to the panel
17 - rotation: panel rotation in degrees counter clockwise (0,90,180,270)
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/Linux-v5.15/Documentation/input/devices/
Drotary-encoder.rst2 rotary-encoder - a generic driver for GPIO connected devices
8 --------
11 peripherals with two wires. The outputs are phase-shifted by 90 degrees
16 a stable state with both outputs high (half-period mode) and some have
17 a stable state in all steps (quarter-period mode).
33 |<-------->|
36 |<-->|
37 one step (half-period mode)
40 one step (quarter-period mode)
47 ----------------------
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Dsentelic.rst8 :Copyright: |copy| 2002-2011 Sentelic Corporation.
10 :Last update: Dec-07-2011
28 BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
30 |---------------| |---------------| |---------------| |---------------|
40 Byte 2: X Movement(9-bit 2's complement integers)
41 Byte 3: Y Movement(9-bit 2's complement integers)
43 valid values, -8 ~ +7
51 - Set bit 1 in register 0x40 to 1
60 BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
62 |---------------| |---------------| |---------------| |---------------|
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/Linux-v5.15/drivers/hid/
Dhid-lgff.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Force feedback support for hid-compliant for some of the devices from
5 * - WingMan Cordless RumblePad
6 * - WingMan Force 3D
8 * Copyright (c) 2002-2004 Johann Deneux
15 * e-mail - mail your message to <johann.deneux@it.uu.se>
23 #include "hid-lg.h"
33 -1
38 -1
44 -1
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Dhid-multitouch.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
6 * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>
7 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
8 * Copyright (c) 2012-2013 Red Hat, Inc
10 * This code is partly based on hid-egalax.c:
16 * This code is partly based on hid-3m-pct.c:
18 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
27 * This driver is regularly tested thanks to the test suite in hid-tools[1].
31 * [1] https://gitlab.freedesktop.org/libevdev/hid-tools
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Dwacom_wac.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * USB Wacom tablet support - Wacom specific code
29 * 2^14/pi is a good approximation on Intuos5 and 3rd-gen Bamboo
60 bool changed = battery->bat_status != bat_status || in __wacom_notify_battery()
61 battery->battery_capacity != bat_capacity || in __wacom_notify_battery()
62 battery->bat_charging != bat_charging || in __wacom_notify_battery()
63 battery->bat_connected != bat_connected || in __wacom_notify_battery()
64 battery->ps_connected != ps_connected; in __wacom_notify_battery()
67 battery->bat_status = bat_status; in __wacom_notify_battery()
68 battery->battery_capacity = bat_capacity; in __wacom_notify_battery()
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/Linux-v5.15/Documentation/devicetree/bindings/media/
Dvideo-interface-devices.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/video-interface-devices.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacopo Mondi <jacopo@jmondi.org>
11 - Sakari Ailus <sakari.ailus@linux.intel.com>
14 flash-leds:
15 $ref: /schemas/types.yaml#/definitions/phandle-array
17 An array of phandles, each referring to a flash LED, a sub-node of the LED
20 lens-focus:
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/Linux-v5.15/Documentation/userspace-api/media/v4l/
Dext-ctrls-camera.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _camera-controls:
13 .. _camera-control-id:
23 .. _v4l2-exposure-auto-type:
28 enum v4l2_exposure_auto_type -
37 .. flat-table::
38 :header-rows: 0
39 :stub-columns: 0
41 * - ``V4L2_EXPOSURE_AUTO``
42 - Automatic exposure time, automatic iris aperture.
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/Linux-v5.15/drivers/input/misc/
Drotary_encoder.c1 // SPDX-License-Identifier: GPL-2.0-only
11 * See file:Documentation/input/devices/rotary-encoder.rst for more information
26 #define DRV_NAME "rotary-encoder"
51 signed char dir; /* 1 - clockwise, -1 - CCW */
61 for (i = 0; i < encoder->gpios->ndescs; ++i) { in rotary_encoder_get_state()
62 int val = gpiod_get_value_cansleep(encoder->gpios->desc[i]); in rotary_encoder_get_state()
65 if (encoder->encoding == ROTENC_GRAY && ret & 1) in rotary_encoder_get_state()
76 if (encoder->relative_axis) { in rotary_encoder_report_event()
77 input_report_rel(encoder->input, in rotary_encoder_report_event()
78 encoder->axis, encoder->dir); in rotary_encoder_report_event()
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Ddm355evm_keys.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * dm355evm_keys.c - support buttons and IR remote on DM355 EVM board
10 #include <linux/input/sparse-keymap.h>
19 * The MSP430 firmware on the DM355 EVM monitors on-board pushbuttons
40 * is to the right. (That is, rotate the board counter-clockwise
54 * remote controls could easily send more RC5-encoded events.
115 dev_dbg(keys->dev, "input high err %d\n", in dm355evm_keys_irq()
123 dev_dbg(keys->dev, "input low err %d\n", in dm355evm_keys_irq()
134 * distinguish (for example) "1-autorepeat" from "1 1"; in dm355evm_keys_irq()
152 ke = sparse_keymap_entry_from_scancode(keys->input, event); in dm355evm_keys_irq()
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/Linux-v5.15/Documentation/devicetree/bindings/iio/
Dmount-matrix.txt2 * is the definition of +/- values practical or counterintuitive?
13 that produce three-dimensional data in relation to the world where it is
37 reference. This means that the sensor may be flipped upside-down, left-right,
47 Device-to-world examples for some three-dimensional sensor types:
49 - Accelerometers have their world frame of reference toward the center of
57 as the gravity vector is projected 1:1 onto the sensors (z)-axis.
67 +--------+ +--------+
69 +--------+ +--------+
80 (---------)
81 ! ! y: -g
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/Linux-v5.15/Documentation/devicetree/bindings/display/panel/
Dpanel-common.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/panel/panel-common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
24 width-mm:
29 height-mm:
43 non-descriptive information. For instance an LCD panel in a system that
50 Display rotation in degrees counter clockwise (0,90,180,270)
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/Linux-v5.15/drivers/gpu/drm/omapdrm/
Domap_fb.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
7 #include <linux/dma-mapping.h>
22 DRM_FORMAT_RGB565, /* RGB16-565 */
23 DRM_FORMAT_RGBX4444, /* RGB12x-4444 */
24 DRM_FORMAT_XRGB4444, /* xRGB12-4444 */
25 DRM_FORMAT_RGBA4444, /* RGBA12-4444 */
26 DRM_FORMAT_ARGB4444, /* ARGB16-4444 */
27 DRM_FORMAT_XRGB1555, /* xRGB15-1555 */
28 DRM_FORMAT_ARGB1555, /* ARGB16-1555 */
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/Linux-v5.15/drivers/gpu/drm/
Ddrm_blend.c43 * sub-pixel accuracy, which is scaled up to a pixel-aligned destination
96 * plane-wide opacity, from transparent (0) to opaque (0xffff). It can be
99 * pre-multiplied by the global alpha associated to the plane.
109 * "rotate-<degrees>":
110 * Signals that a drm plane is rotated <degrees> degrees in counter
111 * clockwise direction.
113 * "reflect-<axis>":
117 * reflect-x::
120 * | | -> | |
123 * reflect-y::
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Ddrm_panel.c17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
47 * drm_panel_init - initialize a panel
60 INIT_LIST_HEAD(&panel->list); in drm_panel_init()
61 panel->dev = dev; in drm_panel_init()
62 panel->funcs = funcs; in drm_panel_init()
63 panel->connector_type = connector_type; in drm_panel_init()
68 * drm_panel_add - add a panel to the global registry
77 list_add_tail(&panel->list, &panel_list); in drm_panel_add()
83 * drm_panel_remove - remove a panel from the global registry
91 list_del_init(&panel->list); in drm_panel_remove()
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/Linux-v5.15/include/uapi/linux/
Dfb.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
23 /* 0x4607-0x460B are defined below */
51 #define FB_AUX_TEXT_SVGA_GROUP 8 /* 8-15: SVGA tileblit compatible modes */
139 #define FB_ACCEL_SAVAGE3D_MV 0x82 /* S3 Savage3D-MV */
141 #define FB_ACCEL_SAVAGE_MX_MV 0x84 /* S3 Savage/MX-MV */
143 #define FB_ACCEL_SAVAGE_IX_MV 0x86 /* S3 Savage/IX-MV */
151 #define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
153 #define FB_ACCEL_PUV3_UNIGFX 0xa0 /* PKUnity-v3 Unigfx */
155 #define FB_CAP_FOURCC 1 /* Device supports FOURCC-based formats */
195 #define FB_NONSTD_HAM 1 /* Hold-And-Modify (HAM) */
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/Linux-v5.15/Documentation/fb/
Dapi.rst9 ---------------
12 with frame buffer devices. In-kernel APIs between device drivers and the frame
22 ---------------
36 - FB_CAP_FOURCC
44 --------------------
46 Pixels are stored in memory in hardware-dependent formats. Applications need
58 - FB_TYPE_PACKED_PIXELS
67 - FB_TYPE_PLANES
75 - FB_TYPE_INTERLEAVED_PLANES
86 - FB_TYPE_FOURCC
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/Linux-v5.15/drivers/gpu/drm/i915/display/
Dskl_universal_plane.c1 // SPDX-License-Identifier: MIT
310 const struct drm_framebuffer *fb = plane_state->hw.fb; in glk_plane_ratio()
312 if (fb->format->cpp[0] == 8) { in glk_plane_ratio()
337 const struct drm_framebuffer *fb = plane_state->hw.fb; in skl_plane_ratio()
339 if (fb->format->cpp[0] == 8) { in skl_plane_ratio()
363 int cpp = fb->format->cpp[color_plane]; in skl_plane_max_width()
365 switch (fb->modifier) { in skl_plane_max_width()
371 * - Ytile (already limited to 4k) in skl_plane_max_width()
372 * - FP16 (already limited to 4k) in skl_plane_max_width()
373 * - render compression (already limited to 4k) in skl_plane_max_width()
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/Linux-v5.15/drivers/media/platform/exynos4-is/
Dfimc-core.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd.
21 #include <media/media-entity.h>
22 #include <media/videobuf2-v4l2.h>
23 #include <media/v4l2-ctrls.h>
24 #include <media/v4l2-device.h>
25 #include <media/v4l2-mem2mem.h>
26 #include <media/v4l2-mediabus.h>
27 #include <media/drv-intf/exynos-fimc.h>
35 #define FIMC_DRIVER_NAME "exynos4-fimc"
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/Linux-v5.15/include/uapi/drm/
Ddrm_mode.h5 * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
6 * Copyright (c) 2007-2008 Intel Corporation
62 /* bit compatible with the xrandr RR_ definitions (bits 0-13)
172 * Signals that a drm plane is been rotated <degrees> degrees in counter
173 * clockwise direction.
176 * using the name->prop id lookup is the preferred method.
202 * using the name->prop id lookup is the preferred method.
222 * struct drm_mode_modeinfo - Display mode information.
239 * This is the user-space API display mode information structure. For the
316 * struct drm_mode_get_plane - Get plane metadata.
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/Linux-v5.15/drivers/gpu/drm/omapdrm/dss/
Ddispc.c1 // SPDX-License-Identifier: GPL-2.0-only
13 #include <linux/dma-mapping.h>
174 /* maps which plane is using a fifo. fifo-id -> plane-id */
356 __raw_writel(val, dispc->base + idx); in dispc_write_reg()
361 return __raw_readl(dispc->base + idx); in dispc_read_reg()
369 return REG_GET(dispc, rfld->reg, rfld->high, rfld->low); in mgr_fld_read()
377 REG_FLD_MOD(dispc, rfld->reg, val, rfld->high, rfld->low); in mgr_fld_write()
382 return dispc->feat->num_ovls; in dispc_get_num_ovls()
387 return dispc->feat->num_mgrs; in dispc_get_num_mgrs()
394 BUG_ON(id >= dispc->feat->num_reg_fields); in dispc_get_reg_field()
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