mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-06 04:56:41 +07:00
dc189053e1
As per the suggestion of Thierry Reding rename HDMI_AUDIO_CODING_TYPE_EXT_STREAM to HDMI_AUDIO_CODING_TYPE_EXT_CT to be consistent with the CEA-861 spec. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
1245 lines
32 KiB
C
1245 lines
32 KiB
C
/*
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* Copyright (C) 2012 Avionic Design GmbH
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/bitops.h>
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#include <linux/bug.h>
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#include <linux/errno.h>
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#include <linux/export.h>
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#include <linux/hdmi.h>
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#include <linux/string.h>
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#include <linux/device.h>
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#define hdmi_log(fmt, ...) dev_printk(level, dev, fmt, ##__VA_ARGS__)
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static u8 hdmi_infoframe_checksum(u8 *ptr, size_t size)
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{
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u8 csum = 0;
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size_t i;
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/* compute checksum */
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for (i = 0; i < size; i++)
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csum += ptr[i];
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return 256 - csum;
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}
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static void hdmi_infoframe_set_checksum(void *buffer, size_t size)
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{
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u8 *ptr = buffer;
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ptr[3] = hdmi_infoframe_checksum(buffer, size);
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}
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/**
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* hdmi_avi_infoframe_init() - initialize an HDMI AVI infoframe
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* @frame: HDMI AVI infoframe
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*
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* Returns 0 on success or a negative error code on failure.
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*/
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int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame)
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{
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memset(frame, 0, sizeof(*frame));
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frame->type = HDMI_INFOFRAME_TYPE_AVI;
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frame->version = 2;
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frame->length = HDMI_AVI_INFOFRAME_SIZE;
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return 0;
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}
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EXPORT_SYMBOL(hdmi_avi_infoframe_init);
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/**
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* hdmi_avi_infoframe_pack() - write HDMI AVI infoframe to binary buffer
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* @frame: HDMI AVI infoframe
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* @buffer: destination buffer
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* @size: size of buffer
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*
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* Packs the information contained in the @frame structure into a binary
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* representation that can be written into the corresponding controller
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* registers. Also computes the checksum as required by section 5.3.5 of
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* the HDMI 1.4 specification.
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*
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* Returns the number of bytes packed into the binary buffer or a negative
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* error code on failure.
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*/
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ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
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size_t size)
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{
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u8 *ptr = buffer;
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size_t length;
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length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
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if (size < length)
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return -ENOSPC;
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memset(buffer, 0, size);
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ptr[0] = frame->type;
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ptr[1] = frame->version;
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ptr[2] = frame->length;
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ptr[3] = 0; /* checksum */
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/* start infoframe payload */
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ptr += HDMI_INFOFRAME_HEADER_SIZE;
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ptr[0] = ((frame->colorspace & 0x3) << 5) | (frame->scan_mode & 0x3);
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/*
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* Data byte 1, bit 4 has to be set if we provide the active format
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* aspect ratio
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*/
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if (frame->active_aspect & 0xf)
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ptr[0] |= BIT(4);
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/* Bit 3 and 2 indicate if we transmit horizontal/vertical bar data */
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if (frame->top_bar || frame->bottom_bar)
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ptr[0] |= BIT(3);
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if (frame->left_bar || frame->right_bar)
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ptr[0] |= BIT(2);
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ptr[1] = ((frame->colorimetry & 0x3) << 6) |
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((frame->picture_aspect & 0x3) << 4) |
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(frame->active_aspect & 0xf);
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ptr[2] = ((frame->extended_colorimetry & 0x7) << 4) |
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((frame->quantization_range & 0x3) << 2) |
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(frame->nups & 0x3);
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if (frame->itc)
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ptr[2] |= BIT(7);
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ptr[3] = frame->video_code & 0x7f;
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ptr[4] = ((frame->ycc_quantization_range & 0x3) << 6) |
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((frame->content_type & 0x3) << 4) |
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(frame->pixel_repeat & 0xf);
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ptr[5] = frame->top_bar & 0xff;
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ptr[6] = (frame->top_bar >> 8) & 0xff;
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ptr[7] = frame->bottom_bar & 0xff;
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ptr[8] = (frame->bottom_bar >> 8) & 0xff;
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ptr[9] = frame->left_bar & 0xff;
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ptr[10] = (frame->left_bar >> 8) & 0xff;
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ptr[11] = frame->right_bar & 0xff;
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ptr[12] = (frame->right_bar >> 8) & 0xff;
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hdmi_infoframe_set_checksum(buffer, length);
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return length;
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}
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EXPORT_SYMBOL(hdmi_avi_infoframe_pack);
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/**
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* hdmi_spd_infoframe_init() - initialize an HDMI SPD infoframe
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* @frame: HDMI SPD infoframe
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* @vendor: vendor string
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* @product: product string
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*
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* Returns 0 on success or a negative error code on failure.
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*/
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int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame,
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const char *vendor, const char *product)
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{
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memset(frame, 0, sizeof(*frame));
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frame->type = HDMI_INFOFRAME_TYPE_SPD;
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frame->version = 1;
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frame->length = HDMI_SPD_INFOFRAME_SIZE;
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strncpy(frame->vendor, vendor, sizeof(frame->vendor));
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strncpy(frame->product, product, sizeof(frame->product));
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return 0;
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}
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EXPORT_SYMBOL(hdmi_spd_infoframe_init);
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/**
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* hdmi_spd_infoframe_pack() - write HDMI SPD infoframe to binary buffer
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* @frame: HDMI SPD infoframe
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* @buffer: destination buffer
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* @size: size of buffer
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*
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* Packs the information contained in the @frame structure into a binary
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* representation that can be written into the corresponding controller
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* registers. Also computes the checksum as required by section 5.3.5 of
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* the HDMI 1.4 specification.
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*
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* Returns the number of bytes packed into the binary buffer or a negative
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* error code on failure.
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*/
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ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
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size_t size)
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{
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u8 *ptr = buffer;
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size_t length;
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length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
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if (size < length)
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return -ENOSPC;
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memset(buffer, 0, size);
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ptr[0] = frame->type;
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ptr[1] = frame->version;
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ptr[2] = frame->length;
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ptr[3] = 0; /* checksum */
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/* start infoframe payload */
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ptr += HDMI_INFOFRAME_HEADER_SIZE;
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memcpy(ptr, frame->vendor, sizeof(frame->vendor));
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memcpy(ptr + 8, frame->product, sizeof(frame->product));
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ptr[24] = frame->sdi;
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hdmi_infoframe_set_checksum(buffer, length);
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return length;
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}
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EXPORT_SYMBOL(hdmi_spd_infoframe_pack);
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/**
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* hdmi_audio_infoframe_init() - initialize an HDMI audio infoframe
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* @frame: HDMI audio infoframe
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*
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* Returns 0 on success or a negative error code on failure.
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*/
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int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame)
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{
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memset(frame, 0, sizeof(*frame));
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frame->type = HDMI_INFOFRAME_TYPE_AUDIO;
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frame->version = 1;
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frame->length = HDMI_AUDIO_INFOFRAME_SIZE;
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return 0;
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}
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EXPORT_SYMBOL(hdmi_audio_infoframe_init);
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/**
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* hdmi_audio_infoframe_pack() - write HDMI audio infoframe to binary buffer
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* @frame: HDMI audio infoframe
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* @buffer: destination buffer
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* @size: size of buffer
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*
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* Packs the information contained in the @frame structure into a binary
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* representation that can be written into the corresponding controller
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* registers. Also computes the checksum as required by section 5.3.5 of
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* the HDMI 1.4 specification.
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*
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* Returns the number of bytes packed into the binary buffer or a negative
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* error code on failure.
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*/
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ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
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void *buffer, size_t size)
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{
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unsigned char channels;
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u8 *ptr = buffer;
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size_t length;
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length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
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if (size < length)
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return -ENOSPC;
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memset(buffer, 0, size);
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if (frame->channels >= 2)
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channels = frame->channels - 1;
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else
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channels = 0;
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ptr[0] = frame->type;
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ptr[1] = frame->version;
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ptr[2] = frame->length;
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ptr[3] = 0; /* checksum */
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/* start infoframe payload */
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ptr += HDMI_INFOFRAME_HEADER_SIZE;
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ptr[0] = ((frame->coding_type & 0xf) << 4) | (channels & 0x7);
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ptr[1] = ((frame->sample_frequency & 0x7) << 2) |
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(frame->sample_size & 0x3);
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ptr[2] = frame->coding_type_ext & 0x1f;
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ptr[3] = frame->channel_allocation;
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ptr[4] = (frame->level_shift_value & 0xf) << 3;
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if (frame->downmix_inhibit)
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ptr[4] |= BIT(7);
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hdmi_infoframe_set_checksum(buffer, length);
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return length;
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}
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EXPORT_SYMBOL(hdmi_audio_infoframe_pack);
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/**
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* hdmi_vendor_infoframe_init() - initialize an HDMI vendor infoframe
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* @frame: HDMI vendor infoframe
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*
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* Returns 0 on success or a negative error code on failure.
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*/
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int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame)
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{
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memset(frame, 0, sizeof(*frame));
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frame->type = HDMI_INFOFRAME_TYPE_VENDOR;
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frame->version = 1;
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frame->oui = HDMI_IEEE_OUI;
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/*
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* 0 is a valid value for s3d_struct, so we use a special "not set"
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* value
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*/
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frame->s3d_struct = HDMI_3D_STRUCTURE_INVALID;
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return 0;
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}
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EXPORT_SYMBOL(hdmi_vendor_infoframe_init);
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/**
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* hdmi_vendor_infoframe_pack() - write a HDMI vendor infoframe to binary buffer
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* @frame: HDMI infoframe
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* @buffer: destination buffer
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* @size: size of buffer
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*
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* Packs the information contained in the @frame structure into a binary
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* representation that can be written into the corresponding controller
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* registers. Also computes the checksum as required by section 5.3.5 of
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* the HDMI 1.4 specification.
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*
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* Returns the number of bytes packed into the binary buffer or a negative
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* error code on failure.
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*/
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ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
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void *buffer, size_t size)
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{
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u8 *ptr = buffer;
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size_t length;
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/* empty info frame */
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if (frame->vic == 0 && frame->s3d_struct == HDMI_3D_STRUCTURE_INVALID)
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return -EINVAL;
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/* only one of those can be supplied */
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if (frame->vic != 0 && frame->s3d_struct != HDMI_3D_STRUCTURE_INVALID)
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return -EINVAL;
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/* for side by side (half) we also need to provide 3D_Ext_Data */
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if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF)
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frame->length = 6;
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else
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frame->length = 5;
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length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
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if (size < length)
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return -ENOSPC;
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memset(buffer, 0, size);
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ptr[0] = frame->type;
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ptr[1] = frame->version;
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ptr[2] = frame->length;
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ptr[3] = 0; /* checksum */
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/* HDMI OUI */
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ptr[4] = 0x03;
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ptr[5] = 0x0c;
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ptr[6] = 0x00;
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if (frame->vic) {
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ptr[7] = 0x1 << 5; /* video format */
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ptr[8] = frame->vic;
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} else {
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ptr[7] = 0x2 << 5; /* video format */
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ptr[8] = (frame->s3d_struct & 0xf) << 4;
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if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF)
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ptr[9] = (frame->s3d_ext_data & 0xf) << 4;
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}
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hdmi_infoframe_set_checksum(buffer, length);
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return length;
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}
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EXPORT_SYMBOL(hdmi_vendor_infoframe_pack);
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/*
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* hdmi_vendor_any_infoframe_pack() - write a vendor infoframe to binary buffer
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*/
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static ssize_t
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hdmi_vendor_any_infoframe_pack(union hdmi_vendor_any_infoframe *frame,
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void *buffer, size_t size)
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{
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/* we only know about HDMI vendor infoframes */
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if (frame->any.oui != HDMI_IEEE_OUI)
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return -EINVAL;
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return hdmi_vendor_infoframe_pack(&frame->hdmi, buffer, size);
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}
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/**
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* hdmi_infoframe_pack() - write a HDMI infoframe to binary buffer
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* @frame: HDMI infoframe
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* @buffer: destination buffer
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* @size: size of buffer
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*
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* Packs the information contained in the @frame structure into a binary
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* representation that can be written into the corresponding controller
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* registers. Also computes the checksum as required by section 5.3.5 of
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* the HDMI 1.4 specification.
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*
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* Returns the number of bytes packed into the binary buffer or a negative
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* error code on failure.
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*/
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ssize_t
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hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size)
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{
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ssize_t length;
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switch (frame->any.type) {
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case HDMI_INFOFRAME_TYPE_AVI:
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length = hdmi_avi_infoframe_pack(&frame->avi, buffer, size);
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break;
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case HDMI_INFOFRAME_TYPE_SPD:
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length = hdmi_spd_infoframe_pack(&frame->spd, buffer, size);
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break;
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case HDMI_INFOFRAME_TYPE_AUDIO:
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length = hdmi_audio_infoframe_pack(&frame->audio, buffer, size);
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break;
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case HDMI_INFOFRAME_TYPE_VENDOR:
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length = hdmi_vendor_any_infoframe_pack(&frame->vendor,
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buffer, size);
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break;
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default:
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WARN(1, "Bad infoframe type %d\n", frame->any.type);
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length = -EINVAL;
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}
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return length;
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}
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EXPORT_SYMBOL(hdmi_infoframe_pack);
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static const char *hdmi_infoframe_type_get_name(enum hdmi_infoframe_type type)
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{
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if (type < 0x80 || type > 0x9f)
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return "Invalid";
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switch (type) {
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case HDMI_INFOFRAME_TYPE_VENDOR:
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return "Vendor";
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case HDMI_INFOFRAME_TYPE_AVI:
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return "Auxiliary Video Information (AVI)";
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case HDMI_INFOFRAME_TYPE_SPD:
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return "Source Product Description (SPD)";
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case HDMI_INFOFRAME_TYPE_AUDIO:
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return "Audio";
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}
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return "Reserved";
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}
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static void hdmi_infoframe_log_header(const char *level,
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struct device *dev,
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struct hdmi_any_infoframe *frame)
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{
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hdmi_log("HDMI infoframe: %s, version %u, length %u\n",
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hdmi_infoframe_type_get_name(frame->type),
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frame->version, frame->length);
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}
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static const char *hdmi_colorspace_get_name(enum hdmi_colorspace colorspace)
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{
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switch (colorspace) {
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case HDMI_COLORSPACE_RGB:
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return "RGB";
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case HDMI_COLORSPACE_YUV422:
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return "YCbCr 4:2:2";
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case HDMI_COLORSPACE_YUV444:
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return "YCbCr 4:4:4";
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case HDMI_COLORSPACE_YUV420:
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return "YCbCr 4:2:0";
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case HDMI_COLORSPACE_RESERVED4:
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return "Reserved (4)";
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case HDMI_COLORSPACE_RESERVED5:
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return "Reserved (5)";
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case HDMI_COLORSPACE_RESERVED6:
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return "Reserved (6)";
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case HDMI_COLORSPACE_IDO_DEFINED:
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return "IDO Defined";
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}
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return "Invalid";
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}
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static const char *hdmi_scan_mode_get_name(enum hdmi_scan_mode scan_mode)
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{
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switch (scan_mode) {
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case HDMI_SCAN_MODE_NONE:
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return "No Data";
|
|
case HDMI_SCAN_MODE_OVERSCAN:
|
|
return "Overscan";
|
|
case HDMI_SCAN_MODE_UNDERSCAN:
|
|
return "Underscan";
|
|
case HDMI_SCAN_MODE_RESERVED:
|
|
return "Reserved";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *hdmi_colorimetry_get_name(enum hdmi_colorimetry colorimetry)
|
|
{
|
|
switch (colorimetry) {
|
|
case HDMI_COLORIMETRY_NONE:
|
|
return "No Data";
|
|
case HDMI_COLORIMETRY_ITU_601:
|
|
return "ITU601";
|
|
case HDMI_COLORIMETRY_ITU_709:
|
|
return "ITU709";
|
|
case HDMI_COLORIMETRY_EXTENDED:
|
|
return "Extended";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_picture_aspect_get_name(enum hdmi_picture_aspect picture_aspect)
|
|
{
|
|
switch (picture_aspect) {
|
|
case HDMI_PICTURE_ASPECT_NONE:
|
|
return "No Data";
|
|
case HDMI_PICTURE_ASPECT_4_3:
|
|
return "4:3";
|
|
case HDMI_PICTURE_ASPECT_16_9:
|
|
return "16:9";
|
|
case HDMI_PICTURE_ASPECT_RESERVED:
|
|
return "Reserved";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_active_aspect_get_name(enum hdmi_active_aspect active_aspect)
|
|
{
|
|
if (active_aspect < 0 || active_aspect > 0xf)
|
|
return "Invalid";
|
|
|
|
switch (active_aspect) {
|
|
case HDMI_ACTIVE_ASPECT_16_9_TOP:
|
|
return "16:9 Top";
|
|
case HDMI_ACTIVE_ASPECT_14_9_TOP:
|
|
return "14:9 Top";
|
|
case HDMI_ACTIVE_ASPECT_16_9_CENTER:
|
|
return "16:9 Center";
|
|
case HDMI_ACTIVE_ASPECT_PICTURE:
|
|
return "Same as Picture";
|
|
case HDMI_ACTIVE_ASPECT_4_3:
|
|
return "4:3";
|
|
case HDMI_ACTIVE_ASPECT_16_9:
|
|
return "16:9";
|
|
case HDMI_ACTIVE_ASPECT_14_9:
|
|
return "14:9";
|
|
case HDMI_ACTIVE_ASPECT_4_3_SP_14_9:
|
|
return "4:3 SP 14:9";
|
|
case HDMI_ACTIVE_ASPECT_16_9_SP_14_9:
|
|
return "16:9 SP 14:9";
|
|
case HDMI_ACTIVE_ASPECT_16_9_SP_4_3:
|
|
return "16:9 SP 4:3";
|
|
}
|
|
return "Reserved";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_extended_colorimetry_get_name(enum hdmi_extended_colorimetry ext_col)
|
|
{
|
|
switch (ext_col) {
|
|
case HDMI_EXTENDED_COLORIMETRY_XV_YCC_601:
|
|
return "xvYCC 601";
|
|
case HDMI_EXTENDED_COLORIMETRY_XV_YCC_709:
|
|
return "xvYCC 709";
|
|
case HDMI_EXTENDED_COLORIMETRY_S_YCC_601:
|
|
return "sYCC 601";
|
|
case HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601:
|
|
return "Adobe YCC 601";
|
|
case HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB:
|
|
return "Adobe RGB";
|
|
case HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM:
|
|
return "BT.2020 Constant Luminance";
|
|
case HDMI_EXTENDED_COLORIMETRY_BT2020:
|
|
return "BT.2020";
|
|
case HDMI_EXTENDED_COLORIMETRY_RESERVED:
|
|
return "Reserved";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_quantization_range_get_name(enum hdmi_quantization_range qrange)
|
|
{
|
|
switch (qrange) {
|
|
case HDMI_QUANTIZATION_RANGE_DEFAULT:
|
|
return "Default";
|
|
case HDMI_QUANTIZATION_RANGE_LIMITED:
|
|
return "Limited";
|
|
case HDMI_QUANTIZATION_RANGE_FULL:
|
|
return "Full";
|
|
case HDMI_QUANTIZATION_RANGE_RESERVED:
|
|
return "Reserved";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *hdmi_nups_get_name(enum hdmi_nups nups)
|
|
{
|
|
switch (nups) {
|
|
case HDMI_NUPS_UNKNOWN:
|
|
return "Unknown Non-uniform Scaling";
|
|
case HDMI_NUPS_HORIZONTAL:
|
|
return "Horizontally Scaled";
|
|
case HDMI_NUPS_VERTICAL:
|
|
return "Vertically Scaled";
|
|
case HDMI_NUPS_BOTH:
|
|
return "Horizontally and Vertically Scaled";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_ycc_quantization_range_get_name(enum hdmi_ycc_quantization_range qrange)
|
|
{
|
|
switch (qrange) {
|
|
case HDMI_YCC_QUANTIZATION_RANGE_LIMITED:
|
|
return "Limited";
|
|
case HDMI_YCC_QUANTIZATION_RANGE_FULL:
|
|
return "Full";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_content_type_get_name(enum hdmi_content_type content_type)
|
|
{
|
|
switch (content_type) {
|
|
case HDMI_CONTENT_TYPE_GRAPHICS:
|
|
return "Graphics";
|
|
case HDMI_CONTENT_TYPE_PHOTO:
|
|
return "Photo";
|
|
case HDMI_CONTENT_TYPE_CINEMA:
|
|
return "Cinema";
|
|
case HDMI_CONTENT_TYPE_GAME:
|
|
return "Game";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
/**
|
|
* hdmi_avi_infoframe_log() - log info of HDMI AVI infoframe
|
|
* @level: logging level
|
|
* @dev: device
|
|
* @frame: HDMI AVI infoframe
|
|
*/
|
|
static void hdmi_avi_infoframe_log(const char *level,
|
|
struct device *dev,
|
|
struct hdmi_avi_infoframe *frame)
|
|
{
|
|
hdmi_infoframe_log_header(level, dev,
|
|
(struct hdmi_any_infoframe *)frame);
|
|
|
|
hdmi_log(" colorspace: %s\n",
|
|
hdmi_colorspace_get_name(frame->colorspace));
|
|
hdmi_log(" scan mode: %s\n",
|
|
hdmi_scan_mode_get_name(frame->scan_mode));
|
|
hdmi_log(" colorimetry: %s\n",
|
|
hdmi_colorimetry_get_name(frame->colorimetry));
|
|
hdmi_log(" picture aspect: %s\n",
|
|
hdmi_picture_aspect_get_name(frame->picture_aspect));
|
|
hdmi_log(" active aspect: %s\n",
|
|
hdmi_active_aspect_get_name(frame->active_aspect));
|
|
hdmi_log(" itc: %s\n", frame->itc ? "IT Content" : "No Data");
|
|
hdmi_log(" extended colorimetry: %s\n",
|
|
hdmi_extended_colorimetry_get_name(frame->extended_colorimetry));
|
|
hdmi_log(" quantization range: %s\n",
|
|
hdmi_quantization_range_get_name(frame->quantization_range));
|
|
hdmi_log(" nups: %s\n", hdmi_nups_get_name(frame->nups));
|
|
hdmi_log(" video code: %u\n", frame->video_code);
|
|
hdmi_log(" ycc quantization range: %s\n",
|
|
hdmi_ycc_quantization_range_get_name(frame->ycc_quantization_range));
|
|
hdmi_log(" hdmi content type: %s\n",
|
|
hdmi_content_type_get_name(frame->content_type));
|
|
hdmi_log(" pixel repeat: %u\n", frame->pixel_repeat);
|
|
hdmi_log(" bar top %u, bottom %u, left %u, right %u\n",
|
|
frame->top_bar, frame->bottom_bar,
|
|
frame->left_bar, frame->right_bar);
|
|
}
|
|
|
|
static const char *hdmi_spd_sdi_get_name(enum hdmi_spd_sdi sdi)
|
|
{
|
|
if (sdi < 0 || sdi > 0xff)
|
|
return "Invalid";
|
|
switch (sdi) {
|
|
case HDMI_SPD_SDI_UNKNOWN:
|
|
return "Unknown";
|
|
case HDMI_SPD_SDI_DSTB:
|
|
return "Digital STB";
|
|
case HDMI_SPD_SDI_DVDP:
|
|
return "DVD Player";
|
|
case HDMI_SPD_SDI_DVHS:
|
|
return "D-VHS";
|
|
case HDMI_SPD_SDI_HDDVR:
|
|
return "HDD Videorecorder";
|
|
case HDMI_SPD_SDI_DVC:
|
|
return "DVC";
|
|
case HDMI_SPD_SDI_DSC:
|
|
return "DSC";
|
|
case HDMI_SPD_SDI_VCD:
|
|
return "Video CD";
|
|
case HDMI_SPD_SDI_GAME:
|
|
return "Game";
|
|
case HDMI_SPD_SDI_PC:
|
|
return "PC General";
|
|
case HDMI_SPD_SDI_BD:
|
|
return "Blu-Ray Disc (BD)";
|
|
case HDMI_SPD_SDI_SACD:
|
|
return "Super Audio CD";
|
|
case HDMI_SPD_SDI_HDDVD:
|
|
return "HD DVD";
|
|
case HDMI_SPD_SDI_PMP:
|
|
return "PMP";
|
|
}
|
|
return "Reserved";
|
|
}
|
|
|
|
/**
|
|
* hdmi_spd_infoframe_log() - log info of HDMI SPD infoframe
|
|
* @level: logging level
|
|
* @dev: device
|
|
* @frame: HDMI SPD infoframe
|
|
*/
|
|
static void hdmi_spd_infoframe_log(const char *level,
|
|
struct device *dev,
|
|
struct hdmi_spd_infoframe *frame)
|
|
{
|
|
u8 buf[17];
|
|
|
|
hdmi_infoframe_log_header(level, dev,
|
|
(struct hdmi_any_infoframe *)frame);
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
strncpy(buf, frame->vendor, 8);
|
|
hdmi_log(" vendor: %s\n", buf);
|
|
strncpy(buf, frame->product, 16);
|
|
hdmi_log(" product: %s\n", buf);
|
|
hdmi_log(" source device information: %s (0x%x)\n",
|
|
hdmi_spd_sdi_get_name(frame->sdi), frame->sdi);
|
|
}
|
|
|
|
static const char *
|
|
hdmi_audio_coding_type_get_name(enum hdmi_audio_coding_type coding_type)
|
|
{
|
|
switch (coding_type) {
|
|
case HDMI_AUDIO_CODING_TYPE_STREAM:
|
|
return "Refer to Stream Header";
|
|
case HDMI_AUDIO_CODING_TYPE_PCM:
|
|
return "PCM";
|
|
case HDMI_AUDIO_CODING_TYPE_AC3:
|
|
return "AC-3";
|
|
case HDMI_AUDIO_CODING_TYPE_MPEG1:
|
|
return "MPEG1";
|
|
case HDMI_AUDIO_CODING_TYPE_MP3:
|
|
return "MP3";
|
|
case HDMI_AUDIO_CODING_TYPE_MPEG2:
|
|
return "MPEG2";
|
|
case HDMI_AUDIO_CODING_TYPE_AAC_LC:
|
|
return "AAC";
|
|
case HDMI_AUDIO_CODING_TYPE_DTS:
|
|
return "DTS";
|
|
case HDMI_AUDIO_CODING_TYPE_ATRAC:
|
|
return "ATRAC";
|
|
case HDMI_AUDIO_CODING_TYPE_DSD:
|
|
return "One Bit Audio";
|
|
case HDMI_AUDIO_CODING_TYPE_EAC3:
|
|
return "Dolby Digital +";
|
|
case HDMI_AUDIO_CODING_TYPE_DTS_HD:
|
|
return "DTS-HD";
|
|
case HDMI_AUDIO_CODING_TYPE_MLP:
|
|
return "MAT (MLP)";
|
|
case HDMI_AUDIO_CODING_TYPE_DST:
|
|
return "DST";
|
|
case HDMI_AUDIO_CODING_TYPE_WMA_PRO:
|
|
return "WMA PRO";
|
|
case HDMI_AUDIO_CODING_TYPE_CXT:
|
|
return "Refer to CXT";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_audio_sample_size_get_name(enum hdmi_audio_sample_size sample_size)
|
|
{
|
|
switch (sample_size) {
|
|
case HDMI_AUDIO_SAMPLE_SIZE_STREAM:
|
|
return "Refer to Stream Header";
|
|
case HDMI_AUDIO_SAMPLE_SIZE_16:
|
|
return "16 bit";
|
|
case HDMI_AUDIO_SAMPLE_SIZE_20:
|
|
return "20 bit";
|
|
case HDMI_AUDIO_SAMPLE_SIZE_24:
|
|
return "24 bit";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_audio_sample_frequency_get_name(enum hdmi_audio_sample_frequency freq)
|
|
{
|
|
switch (freq) {
|
|
case HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM:
|
|
return "Refer to Stream Header";
|
|
case HDMI_AUDIO_SAMPLE_FREQUENCY_32000:
|
|
return "32 kHz";
|
|
case HDMI_AUDIO_SAMPLE_FREQUENCY_44100:
|
|
return "44.1 kHz (CD)";
|
|
case HDMI_AUDIO_SAMPLE_FREQUENCY_48000:
|
|
return "48 kHz";
|
|
case HDMI_AUDIO_SAMPLE_FREQUENCY_88200:
|
|
return "88.2 kHz";
|
|
case HDMI_AUDIO_SAMPLE_FREQUENCY_96000:
|
|
return "96 kHz";
|
|
case HDMI_AUDIO_SAMPLE_FREQUENCY_176400:
|
|
return "176.4 kHz";
|
|
case HDMI_AUDIO_SAMPLE_FREQUENCY_192000:
|
|
return "192 kHz";
|
|
}
|
|
return "Invalid";
|
|
}
|
|
|
|
static const char *
|
|
hdmi_audio_coding_type_ext_get_name(enum hdmi_audio_coding_type_ext ctx)
|
|
{
|
|
if (ctx < 0 || ctx > 0x1f)
|
|
return "Invalid";
|
|
|
|
switch (ctx) {
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_CT:
|
|
return "Refer to CT";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC:
|
|
return "HE AAC";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2:
|
|
return "HE AAC v2";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND:
|
|
return "MPEG SURROUND";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC:
|
|
return "MPEG-4 HE AAC";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_V2:
|
|
return "MPEG-4 HE AAC v2";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC:
|
|
return "MPEG-4 AAC LC";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_DRA:
|
|
return "DRA";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_SURROUND:
|
|
return "MPEG-4 HE AAC + MPEG Surround";
|
|
case HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC_SURROUND:
|
|
return "MPEG-4 AAC LC + MPEG Surround";
|
|
}
|
|
return "Reserved";
|
|
}
|
|
|
|
/**
|
|
* hdmi_audio_infoframe_log() - log info of HDMI AUDIO infoframe
|
|
* @level: logging level
|
|
* @dev: device
|
|
* @frame: HDMI AUDIO infoframe
|
|
*/
|
|
static void hdmi_audio_infoframe_log(const char *level,
|
|
struct device *dev,
|
|
struct hdmi_audio_infoframe *frame)
|
|
{
|
|
hdmi_infoframe_log_header(level, dev,
|
|
(struct hdmi_any_infoframe *)frame);
|
|
|
|
if (frame->channels)
|
|
hdmi_log(" channels: %u\n", frame->channels - 1);
|
|
else
|
|
hdmi_log(" channels: Refer to stream header\n");
|
|
hdmi_log(" coding type: %s\n",
|
|
hdmi_audio_coding_type_get_name(frame->coding_type));
|
|
hdmi_log(" sample size: %s\n",
|
|
hdmi_audio_sample_size_get_name(frame->sample_size));
|
|
hdmi_log(" sample frequency: %s\n",
|
|
hdmi_audio_sample_frequency_get_name(frame->sample_frequency));
|
|
hdmi_log(" coding type ext: %s\n",
|
|
hdmi_audio_coding_type_ext_get_name(frame->coding_type_ext));
|
|
hdmi_log(" channel allocation: 0x%x\n",
|
|
frame->channel_allocation);
|
|
hdmi_log(" level shift value: %u dB\n",
|
|
frame->level_shift_value);
|
|
hdmi_log(" downmix inhibit: %s\n",
|
|
frame->downmix_inhibit ? "Yes" : "No");
|
|
}
|
|
|
|
static const char *
|
|
hdmi_3d_structure_get_name(enum hdmi_3d_structure s3d_struct)
|
|
{
|
|
if (s3d_struct < 0 || s3d_struct > 0xf)
|
|
return "Invalid";
|
|
|
|
switch (s3d_struct) {
|
|
case HDMI_3D_STRUCTURE_FRAME_PACKING:
|
|
return "Frame Packing";
|
|
case HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE:
|
|
return "Field Alternative";
|
|
case HDMI_3D_STRUCTURE_LINE_ALTERNATIVE:
|
|
return "Line Alternative";
|
|
case HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL:
|
|
return "Side-by-side (Full)";
|
|
case HDMI_3D_STRUCTURE_L_DEPTH:
|
|
return "L + Depth";
|
|
case HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH:
|
|
return "L + Depth + Graphics + Graphics-depth";
|
|
case HDMI_3D_STRUCTURE_TOP_AND_BOTTOM:
|
|
return "Top-and-Bottom";
|
|
case HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF:
|
|
return "Side-by-side (Half)";
|
|
default:
|
|
break;
|
|
}
|
|
return "Reserved";
|
|
}
|
|
|
|
/**
|
|
* hdmi_vendor_infoframe_log() - log info of HDMI VENDOR infoframe
|
|
* @level: logging level
|
|
* @dev: device
|
|
* @frame: HDMI VENDOR infoframe
|
|
*/
|
|
static void
|
|
hdmi_vendor_any_infoframe_log(const char *level,
|
|
struct device *dev,
|
|
union hdmi_vendor_any_infoframe *frame)
|
|
{
|
|
struct hdmi_vendor_infoframe *hvf = &frame->hdmi;
|
|
|
|
hdmi_infoframe_log_header(level, dev,
|
|
(struct hdmi_any_infoframe *)frame);
|
|
|
|
if (frame->any.oui != HDMI_IEEE_OUI) {
|
|
hdmi_log(" not a HDMI vendor infoframe\n");
|
|
return;
|
|
}
|
|
if (hvf->vic == 0 && hvf->s3d_struct == HDMI_3D_STRUCTURE_INVALID) {
|
|
hdmi_log(" empty frame\n");
|
|
return;
|
|
}
|
|
|
|
if (hvf->vic)
|
|
hdmi_log(" HDMI VIC: %u\n", hvf->vic);
|
|
if (hvf->s3d_struct != HDMI_3D_STRUCTURE_INVALID) {
|
|
hdmi_log(" 3D structure: %s\n",
|
|
hdmi_3d_structure_get_name(hvf->s3d_struct));
|
|
if (hvf->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF)
|
|
hdmi_log(" 3D extension data: %d\n",
|
|
hvf->s3d_ext_data);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* hdmi_infoframe_log() - log info of HDMI infoframe
|
|
* @level: logging level
|
|
* @dev: device
|
|
* @frame: HDMI infoframe
|
|
*/
|
|
void hdmi_infoframe_log(const char *level,
|
|
struct device *dev,
|
|
union hdmi_infoframe *frame)
|
|
{
|
|
switch (frame->any.type) {
|
|
case HDMI_INFOFRAME_TYPE_AVI:
|
|
hdmi_avi_infoframe_log(level, dev, &frame->avi);
|
|
break;
|
|
case HDMI_INFOFRAME_TYPE_SPD:
|
|
hdmi_spd_infoframe_log(level, dev, &frame->spd);
|
|
break;
|
|
case HDMI_INFOFRAME_TYPE_AUDIO:
|
|
hdmi_audio_infoframe_log(level, dev, &frame->audio);
|
|
break;
|
|
case HDMI_INFOFRAME_TYPE_VENDOR:
|
|
hdmi_vendor_any_infoframe_log(level, dev, &frame->vendor);
|
|
break;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(hdmi_infoframe_log);
|
|
|
|
/**
|
|
* hdmi_avi_infoframe_unpack() - unpack binary buffer to a HDMI AVI infoframe
|
|
* @buffer: source buffer
|
|
* @frame: HDMI AVI infoframe
|
|
*
|
|
* Unpacks the information contained in binary @buffer into a structured
|
|
* @frame of the HDMI Auxiliary Video (AVI) information frame.
|
|
* Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
|
|
* specification.
|
|
*
|
|
* Returns 0 on success or a negative error code on failure.
|
|
*/
|
|
static int hdmi_avi_infoframe_unpack(struct hdmi_avi_infoframe *frame,
|
|
void *buffer)
|
|
{
|
|
u8 *ptr = buffer;
|
|
int ret;
|
|
|
|
if (ptr[0] != HDMI_INFOFRAME_TYPE_AVI ||
|
|
ptr[1] != 2 ||
|
|
ptr[2] != HDMI_AVI_INFOFRAME_SIZE)
|
|
return -EINVAL;
|
|
|
|
if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(AVI)) != 0)
|
|
return -EINVAL;
|
|
|
|
ret = hdmi_avi_infoframe_init(frame);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ptr += HDMI_INFOFRAME_HEADER_SIZE;
|
|
|
|
frame->colorspace = (ptr[0] >> 5) & 0x3;
|
|
if (ptr[0] & 0x10)
|
|
frame->active_aspect = ptr[1] & 0xf;
|
|
if (ptr[0] & 0x8) {
|
|
frame->top_bar = (ptr[5] << 8) + ptr[6];
|
|
frame->bottom_bar = (ptr[7] << 8) + ptr[8];
|
|
}
|
|
if (ptr[0] & 0x4) {
|
|
frame->left_bar = (ptr[9] << 8) + ptr[10];
|
|
frame->right_bar = (ptr[11] << 8) + ptr[12];
|
|
}
|
|
frame->scan_mode = ptr[0] & 0x3;
|
|
|
|
frame->colorimetry = (ptr[1] >> 6) & 0x3;
|
|
frame->picture_aspect = (ptr[1] >> 4) & 0x3;
|
|
frame->active_aspect = ptr[1] & 0xf;
|
|
|
|
frame->itc = ptr[2] & 0x80 ? true : false;
|
|
frame->extended_colorimetry = (ptr[2] >> 4) & 0x7;
|
|
frame->quantization_range = (ptr[2] >> 2) & 0x3;
|
|
frame->nups = ptr[2] & 0x3;
|
|
|
|
frame->video_code = ptr[3] & 0x7f;
|
|
frame->ycc_quantization_range = (ptr[4] >> 6) & 0x3;
|
|
frame->content_type = (ptr[4] >> 4) & 0x3;
|
|
|
|
frame->pixel_repeat = ptr[4] & 0xf;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* hdmi_spd_infoframe_unpack() - unpack binary buffer to a HDMI SPD infoframe
|
|
* @buffer: source buffer
|
|
* @frame: HDMI SPD infoframe
|
|
*
|
|
* Unpacks the information contained in binary @buffer into a structured
|
|
* @frame of the HDMI Source Product Description (SPD) information frame.
|
|
* Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
|
|
* specification.
|
|
*
|
|
* Returns 0 on success or a negative error code on failure.
|
|
*/
|
|
static int hdmi_spd_infoframe_unpack(struct hdmi_spd_infoframe *frame,
|
|
void *buffer)
|
|
{
|
|
u8 *ptr = buffer;
|
|
int ret;
|
|
|
|
if (ptr[0] != HDMI_INFOFRAME_TYPE_SPD ||
|
|
ptr[1] != 1 ||
|
|
ptr[2] != HDMI_SPD_INFOFRAME_SIZE) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(SPD)) != 0)
|
|
return -EINVAL;
|
|
|
|
ptr += HDMI_INFOFRAME_HEADER_SIZE;
|
|
|
|
ret = hdmi_spd_infoframe_init(frame, ptr, ptr + 8);
|
|
if (ret)
|
|
return ret;
|
|
|
|
frame->sdi = ptr[24];
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* hdmi_audio_infoframe_unpack() - unpack binary buffer to a HDMI AUDIO infoframe
|
|
* @buffer: source buffer
|
|
* @frame: HDMI Audio infoframe
|
|
*
|
|
* Unpacks the information contained in binary @buffer into a structured
|
|
* @frame of the HDMI Audio information frame.
|
|
* Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
|
|
* specification.
|
|
*
|
|
* Returns 0 on success or a negative error code on failure.
|
|
*/
|
|
static int hdmi_audio_infoframe_unpack(struct hdmi_audio_infoframe *frame,
|
|
void *buffer)
|
|
{
|
|
u8 *ptr = buffer;
|
|
int ret;
|
|
|
|
if (ptr[0] != HDMI_INFOFRAME_TYPE_AUDIO ||
|
|
ptr[1] != 1 ||
|
|
ptr[2] != HDMI_AUDIO_INFOFRAME_SIZE) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(AUDIO)) != 0)
|
|
return -EINVAL;
|
|
|
|
ret = hdmi_audio_infoframe_init(frame);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ptr += HDMI_INFOFRAME_HEADER_SIZE;
|
|
|
|
frame->channels = ptr[0] & 0x7;
|
|
frame->coding_type = (ptr[0] >> 4) & 0xf;
|
|
frame->sample_size = ptr[1] & 0x3;
|
|
frame->sample_frequency = (ptr[1] >> 2) & 0x7;
|
|
frame->coding_type_ext = ptr[2] & 0x1f;
|
|
frame->channel_allocation = ptr[3];
|
|
frame->level_shift_value = (ptr[4] >> 3) & 0xf;
|
|
frame->downmix_inhibit = ptr[4] & 0x80 ? true : false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* hdmi_vendor_infoframe_unpack() - unpack binary buffer to a HDMI vendor infoframe
|
|
* @buffer: source buffer
|
|
* @frame: HDMI Vendor infoframe
|
|
*
|
|
* Unpacks the information contained in binary @buffer into a structured
|
|
* @frame of the HDMI Vendor information frame.
|
|
* Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
|
|
* specification.
|
|
*
|
|
* Returns 0 on success or a negative error code on failure.
|
|
*/
|
|
static int
|
|
hdmi_vendor_any_infoframe_unpack(union hdmi_vendor_any_infoframe *frame,
|
|
void *buffer)
|
|
{
|
|
u8 *ptr = buffer;
|
|
size_t length;
|
|
int ret;
|
|
u8 hdmi_video_format;
|
|
struct hdmi_vendor_infoframe *hvf = &frame->hdmi;
|
|
|
|
if (ptr[0] != HDMI_INFOFRAME_TYPE_VENDOR ||
|
|
ptr[1] != 1 ||
|
|
(ptr[2] != 5 && ptr[2] != 6))
|
|
return -EINVAL;
|
|
|
|
length = ptr[2];
|
|
|
|
if (hdmi_infoframe_checksum(buffer,
|
|
HDMI_INFOFRAME_HEADER_SIZE + length) != 0)
|
|
return -EINVAL;
|
|
|
|
ptr += HDMI_INFOFRAME_HEADER_SIZE;
|
|
|
|
/* HDMI OUI */
|
|
if ((ptr[0] != 0x03) ||
|
|
(ptr[1] != 0x0c) ||
|
|
(ptr[2] != 0x00))
|
|
return -EINVAL;
|
|
|
|
hdmi_video_format = ptr[3] >> 5;
|
|
|
|
if (hdmi_video_format > 0x2)
|
|
return -EINVAL;
|
|
|
|
ret = hdmi_vendor_infoframe_init(hvf);
|
|
if (ret)
|
|
return ret;
|
|
|
|
hvf->length = length;
|
|
|
|
if (hdmi_video_format == 0x1) {
|
|
hvf->vic = ptr[4];
|
|
} else if (hdmi_video_format == 0x2) {
|
|
hvf->s3d_struct = ptr[4] >> 4;
|
|
if (hvf->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) {
|
|
if (length == 6)
|
|
hvf->s3d_ext_data = ptr[5] >> 4;
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* hdmi_infoframe_unpack() - unpack binary buffer to a HDMI infoframe
|
|
* @buffer: source buffer
|
|
* @frame: HDMI infoframe
|
|
*
|
|
* Unpacks the information contained in binary buffer @buffer into a structured
|
|
* @frame of a HDMI infoframe.
|
|
* Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
|
|
* specification.
|
|
*
|
|
* Returns 0 on success or a negative error code on failure.
|
|
*/
|
|
int hdmi_infoframe_unpack(union hdmi_infoframe *frame, void *buffer)
|
|
{
|
|
int ret;
|
|
u8 *ptr = buffer;
|
|
|
|
switch (ptr[0]) {
|
|
case HDMI_INFOFRAME_TYPE_AVI:
|
|
ret = hdmi_avi_infoframe_unpack(&frame->avi, buffer);
|
|
break;
|
|
case HDMI_INFOFRAME_TYPE_SPD:
|
|
ret = hdmi_spd_infoframe_unpack(&frame->spd, buffer);
|
|
break;
|
|
case HDMI_INFOFRAME_TYPE_AUDIO:
|
|
ret = hdmi_audio_infoframe_unpack(&frame->audio, buffer);
|
|
break;
|
|
case HDMI_INFOFRAME_TYPE_VENDOR:
|
|
ret = hdmi_vendor_any_infoframe_unpack(&frame->vendor, buffer);
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(hdmi_infoframe_unpack);
|