| /Linux-v5.4/drivers/video/ |
| D | hdmi.c | 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
43 return 256 - csum; in hdmi_infoframe_checksum()
46 static void hdmi_infoframe_set_checksum(void *buffer, size_t size) in hdmi_infoframe_set_checksum() argument
48 u8 *ptr = buffer; in hdmi_infoframe_set_checksum()
50 ptr[3] = hdmi_infoframe_checksum(buffer, size); in hdmi_infoframe_set_checksum()
54 * hdmi_avi_infoframe_init() - initialize an HDMI AVI infoframe
55 * @frame: HDMI AVI infoframe
59 int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame) in hdmi_avi_infoframe_init() argument
61 memset(frame, 0, sizeof(*frame)); in hdmi_avi_infoframe_init()
63 frame->type = HDMI_INFOFRAME_TYPE_AVI; in hdmi_avi_infoframe_init()
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| /Linux-v5.4/Documentation/fb/ |
| D | framebuffer.rst | 2 The Frame Buffer Device
9 ---------------
11 The frame buffer device provides an abstraction for the graphics hardware. It
12 represents the frame buffer of some video hardware and allows application
13 software to access the graphics hardware through a well-defined interface, so
14 the software doesn't need to know anything about the low-level (hardware
22 --------------------------
24 From the user's point of view, the frame buffer device looks just like any
26 specifies the frame buffer number.
31 0 = /dev/fb0 First frame buffer
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| D | modedb.rst | 6 Currently all frame buffer device drivers have their own video mode databases,
9 - one routine to probe for video modes, which can be used by all frame buffer
11 - one generic video mode database with a fair amount of standard videomodes
13 - the possibility to supply your own mode database for graphics hardware that
14 needs non-standard modes, like amifb and Mac frame buffer drivers (which
17 When a frame buffer device receives a video= option it doesn't know, it should
18 consider that to be a video mode option. If no frame buffer device is specified
23 <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd]
24 <name>[-<bpp>][@<refresh>]
37 Sample usage: 1024x768M@60m - CVT timing with margins
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| D | internals.rst | 2 Frame Buffer device internals
5 This is a first start for some documentation about frame buffer device
10 - Geert Uytterhoeven <geert@linux-m68k.org>, 21 July 1998
11 - James Simmons <jsimmons@user.sf.net>, Nov 26 2002
13 --------------------------------------------------------------------------------
15 Structures used by the frame buffer device API
18 The following structures play a role in the game of frame buffer devices. They
23 - struct fb_fix_screeninfo
25 Device independent unchangeable information about a frame buffer device and
29 - struct fb_var_screeninfo
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| D | api.rst | 2 The Frame Buffer Device API
9 ---------------
11 This document describes the frame buffer API used by applications to interact
12 with frame buffer devices. In-kernel APIs between device drivers and the frame
13 buffer core are not described.
15 Due to a lack of documentation in the original frame buffer API, drivers
22 ---------------
36 - FB_CAP_FOURCC
44 --------------------
46 Pixels are stored in memory in hardware-dependent formats. Applications need
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| /Linux-v5.4/Documentation/media/uapi/v4l/ |
| D | pixfmt-compressed.rst | 4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
15 .. _compressed-formats:
19 .. flat-table:: Compressed Image Formats
20 :header-rows: 1
21 :stub-columns: 0
24 * - Identifier
25 - Code
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|
| D | buffer.rst | 4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
16 A buffer contains data exchanged by application and driver using one of
17 the Streaming I/O methods. In the multi-planar API, the data is held in
18 planes, while the buffer structure acts as a container for the planes.
20 copied. These pointers, together with meta-information like timestamps
24 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. In the multi-planar API,
25 some plane-specific members of struct :c:type:`v4l2_buffer`,
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|
| D | func-read.rst | 4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
10 .. _func-read:
19 v4l2-read - Read from a V4L2 device
25 .. code-block:: c
31 :name: v4l2-read
37 File descriptor returned by :ref:`open() <func-open>`.
40 Buffer to be filled
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| /Linux-v5.4/include/linux/ |
| D | hdmi.h | 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
124 /* The following EC values are only defined in CEA-861-F. */
137 /* non-uniform picture scaling */
210 int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
211 ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
213 ssize_t hdmi_avi_infoframe_pack_only(const struct hdmi_avi_infoframe *frame,
214 void *buffer, size_t size);
215 int hdmi_avi_infoframe_check(struct hdmi_avi_infoframe *frame);
216 int hdmi_drm_infoframe_init(struct hdmi_drm_infoframe *frame);
217 ssize_t hdmi_drm_infoframe_pack(struct hdmi_drm_infoframe *frame, void *buffer,
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| D | zstd.h | 2 * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
5 * This source code is licensed under the BSD-style license found in the
12 * Free Software Foundation. This program is dual-licensed; you may select
24 /*-*****************************************************************************
28 * targeting real-time compression scenarios at zlib-level and better
29 * compression ratios. The zstd compression library provides in-memory
34 * - a single step, reusing a context (described as Explicit memory management)
35 * - unbounded multiple steps (described as Streaming compression)
38 * - a single step (described as Simple dictionary API)
39 * - a single step, reusing a dictionary (described as Fast dictionary API)
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| /Linux-v5.4/drivers/video/fbdev/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
13 tristate "Support for frame buffer devices"
16 ---help---
17 The frame buffer device provides an abstraction for the graphics
18 hardware. It represents the frame buffer of some video hardware and
20 a well-defined interface, so the software doesn't need to know
21 anything about the low-level (hardware register) stuff.
23 Frame buffer devices work identically across the different
26 server exists which uses the frame buffer device exclusively.
27 On several non-X86 architectures, the frame buffer device is the
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|
| /Linux-v5.4/drivers/media/platform/mtk-vcodec/ |
| D | vdec_drv_if.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
17 * struct vdec_fb_status - decoder frame buffer status
19 * @FB_ST_DISPLAY : frmae buffer is ready to be displayed
20 * @FB_ST_FREE : frame buffer is not used by decoder any more
29 * the caller does not own the returned buffer. The buffer will not be
31 * GET_PARAM_DISP_FRAME_BUFFER : get next displayable frame buffer,
33 * GET_PARAM_FREE_FRAME_BUFFER : get non-referenced framebuffer, vdec_fb**
47 * struct vdec_fb_node - decoder frame buffer node
49 * @fb : point to frame buffer (vdec_fb), fb could point to frame buffer and
50 * working buffer this is for maintain buffers in different state
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| D | venc_drv_if.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
16 * enum venc_yuv_fmt - The type of input yuv format
31 * enum venc_start_opt - encode frame option used in venc_if_encode()
33 * @VENC_START_OPT_ENCODE_FRAME: encode normal frame
41 * enum venc_set_param_type - The type of set parameter used in
45 * @VENC_SET_PARAM_FORCE_INTRA: force an intra frame
47 * @VENC_SET_PARAM_ADJUST_FRAMERATE: set frame rate
49 * @VENC_SET_PARAM_INTRA_PERIOD: set I frame interval
50 * @VENC_SET_PARAM_SKIP_FRAME: set H264 skip one frame
67 * struct venc_enc_prm - encoder settings for VENC_SET_PARAM_ENC used in
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| /Linux-v5.4/Documentation/driver-api/ |
| D | frame-buffer.rst | 1 Frame Buffer Library
4 The frame buffer drivers depend heavily on four data structures. These
20 otherwise. A good example of this is the start of the frame buffer
21 memory. This "locks" the address of the frame buffer memory, so that it
31 Frame Buffer Memory
32 -------------------
34 .. kernel-doc:: drivers/video/fbdev/core/fbmem.c
37 Frame Buffer Colormap
38 ---------------------
40 .. kernel-doc:: drivers/video/fbdev/core/fbcmap.c
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|
| /Linux-v5.4/drivers/scsi/isci/ |
| D | unsolicited_frame_control.h | 7 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
20 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
26 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
64 * struct scu_unsolicited_frame_header -
66 * This structure delineates the format of an unsolicited frame header. The
83 * This field indicates if the frame is an address frame (IAF or OAF)
84 * or if it is a information unit frame.
89 * This field simply indicates the connection rate at which the frame
106 * enum unsolicited_frame_state -
108 * This enumeration represents the current unsolicited frame state. The
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|
| /Linux-v5.4/drivers/media/usb/usbvision/ |
| D | usbvision-core.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * usbvision-core.c - driver for NT100x USB video capture devices
5 * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de>
27 #include <media/v4l2-common.h>
42 /* To help people with Black and White output with using s-video input.
46 MODULE_PARM_DESC(switch_svideo_input, " Set the S-Video input. Some cables and input device are wi…
48 static unsigned int adjust_x_offset = -1;
52 static unsigned int adjust_y_offset = -1;
79 * is too slow. Larger buffers are memory-consuming and take longer
83 #define DEFAULT_SCRATCH_BUF_SIZE (0x20000) /* 128kB memory scratch buffer */
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|
| /Linux-v5.4/include/uapi/drm/ |
| D | lima_drm.h | 1 /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */
2 /* Copyright 2017-2018 Qiang Yu <yuq825@gmail.com> */
36 * create a buffer for used by GPU
39 __u32 size; /* in, buffer size */
41 __u32 handle; /* out, GEM buffer handle */
46 * get information of a buffer
49 __u32 handle; /* in, GEM buffer handle */
51 __u64 offset; /* out, used to mmap this buffer to CPU */
57 /* buffer information used by one task */
59 __u32 handle; /* in, GEM buffer handle */
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|
| /Linux-v5.4/drivers/thunderbolt/ |
| D | ctl.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Thunderbolt driver - control channel and configuration commands
23 * struct tb_cfg - thunderbolt control channel
42 dev_WARN(&(ctl)->nhi->pdev->dev, format, ## arg)
45 dev_err(&(ctl)->nhi->pdev->dev, format, ## arg)
48 dev_warn(&(ctl)->nhi->pdev->dev, format, ## arg)
51 dev_info(&(ctl)->nhi->pdev->dev, format, ## arg)
54 dev_dbg(&(ctl)->nhi->pdev->dev, format, ## arg)
61 * tb_cfg_request_alloc() - Allocates a new config request
74 kref_init(&req->kref); in tb_cfg_request_alloc()
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|
| /Linux-v5.4/drivers/media/platform/mtk-vcodec/vdec/ |
| D | vdec_vp9_if.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Kai-Sean Yang <kai-sean.yang@mediatek.com>
29 * struct vp9_dram_buf - contains buffer info for vpu
32 * @sz : buffer size
43 * struct vp9_fb_info - contains frame buffer info
44 * @fb : frmae buffer
53 * struct vp9_ref_cnt_buf - contains reference buffer information
54 * @buf : referenced frame buffer
55 * @ref_cnt : referenced frame buffer's reference count.
64 * struct vp9_fb_info - contains current frame's reference buffer information
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|
| /Linux-v5.4/drivers/gpu/drm/radeon/ |
| D | r600_hdmi.c | 87 dev_err(rdev->dev, "Unknown bits per sample 0x%x, using 16\n", in r600_audio_status()
118 struct drm_device *dev = rdev->ddev; in r600_audio_update_hdmi()
123 if (rdev->audio.pin[0].channels != audio_status.channels || in r600_audio_update_hdmi()
124 rdev->audio.pin[0].rate != audio_status.rate || in r600_audio_update_hdmi()
125 rdev->audio.pin[0].bits_per_sample != audio_status.bits_per_sample || in r600_audio_update_hdmi()
126 rdev->audio.pin[0].status_bits != audio_status.status_bits || in r600_audio_update_hdmi()
127 rdev->audio.pin[0].category_code != audio_status.category_code) { in r600_audio_update_hdmi()
128 rdev->audio.pin[0] = audio_status; in r600_audio_update_hdmi()
132 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { in r600_audio_update_hdmi()
173 /* only one pin on 6xx-NI */ in r600_audio_get_pin()
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| /Linux-v5.4/drivers/media/platform/sti/hva/ |
| D | hva-h264.c | 1 // SPDX-License-Identifier: GPL-2.0
9 #include "hva-hw.h"
32 /* source buffer copy in YUV 420 MB-tiled format with size=16*256*3/2 */
41 /* factor for bitrate and cpb buffer size max values if profile >= high */
44 /* factor for bitrate and cpb buffer size max values if profile < high */
152 * @frame_width: width in pixels of the buffer containing the input frame
153 * @frame_height: height in pixels of the buffer containing the input frame
169 * @ir_param_option: defines the number of macroblocks per frame to be
200 * @brc_type: selects the bit-rate control algorithm
205 * @non_VCL_NALU_Size: size of non-VCL NALUs (SPS, PPS, filler),
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| /Linux-v5.4/drivers/tty/ |
| D | n_hdlc.c | 1 // SPDX-License-Identifier: GPL-1.0+
16 * tty device drivers that support bit-synchronous HDLC communications.
18 * All HDLC data is frame oriented which means:
20 * 1. tty write calls represent one complete transmit frame of data
21 * The device driver should accept the complete frame or none of
22 * the frame (busy) in the write method. Each write call should have
23 * a byte count in the range of 2-65535 bytes (2 is min HDLC frame
26 * CCITT CRC32, 4 crc bytes are required, so the maximum size frame
28 * CRC16, the maximum application frame size would be 65533.
32 * one received frame. The device driver should bypass
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| /Linux-v5.4/drivers/media/usb/uvc/ |
| D | uvc_video.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * uvc_video.c -- USB Video Class driver - Video handling
5 * Copyright (C) 2005-2010
20 #include <media/v4l2-common.h>
24 /* ------------------------------------------------------------------------
35 pipe = (query & 0x80) ? usb_rcvctrlpipe(dev->udev, 0) in __uvc_query_ctrl()
36 : usb_sndctrlpipe(dev->udev, 0); in __uvc_query_ctrl()
39 return usb_control_msg(dev->udev, pipe, query, type, cs << 8, in __uvc_query_ctrl()
83 if (ret != -EPIPE) in uvc_query_ctrl()
96 return ret < 0 ? ret : -EPIPE; in uvc_query_ctrl()
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| D | uvc_driver.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * uvc_driver.c -- USB Video Class driver
5 * Copyright (C) 2005-2010
21 #include <media/v4l2-common.h>
22 #include <media/v4l2-ioctl.h>
33 static unsigned int uvc_quirks_param = -1;
37 /* ------------------------------------------------------------------------
83 .name = "Greyscale 8-bit (Y800)",
88 .name = "Greyscale 8-bit (Y8 )",
93 .name = "Greyscale 8-bit (D3DFMT_L8)",
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| /Linux-v5.4/include/soc/fsl/ |
| D | dpaa2-fd.h | 1 /* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
3 * Copyright 2014-2016 Freescale Semiconductor Inc.
13 * DOC: DPAA2 FD - Frame Descriptor APIs for DPAA2
15 * Frame Descriptors (FDs) are used to describe frame data in the DPAA2.
16 * Frames can be enqueued and dequeued to Frame Queues (FQs) which are consumed
19 * There are three types of frames: single, scatter gather, and frame lists.
22 * query Frame Descriptors.
26 * struct dpaa2_fd - Struct describing FDs
30 * @bpid: buffer pool ID
31 * @format_offset: format, offset, and short-length fields
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|
