From: "Luis R. Rodriguez" <mcgrof@xxxxxxxxxxxxxxxx>
HDMI was being carried over through compat but that
was a mistake as all its doing is providing helper
routines. It was also defining it as a module which
was tainting the kernel! This fixes that.
mcgrof@frijol ~/linux-stable (git::master)$ git describe --contains \
f142d3bd556c5e82e9bb3d33d07d6708702ea4ce
v3.9-rc1~83^2~1^2~4
commit f142d3bd556c5e82e9bb3d33d07d6708702ea4ce
Author: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
Date: Wed Nov 21 15:29:29 2012 +0100
video: Add generic HDMI infoframe helpers
Add generic helpers to pack HDMI infoframes into binary buffers.
Signed-off-by: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
1 2.6.24 [ OK ]
2 2.6.25 [ OK ]
3 2.6.26 [ OK ]
4 2.6.27 [ OK ]
5 2.6.28 [ OK ]
6 2.6.29 [ OK ]
7 2.6.30 [ OK ]
8 2.6.31 [ OK ]
9 2.6.32 [ OK ]
10 2.6.33 [ OK ]
11 2.6.34 [ OK ]
12 2.6.35 [ OK ]
13 2.6.36 [ OK ]
14 2.6.37 [ OK ]
15 2.6.38 [ OK ]
16 2.6.39 [ OK ]
17 3.0.65 [ OK ]
18 3.1.10 [ OK ]
19 3.2.38 [ OK ]
20 3.3.8 [ OK ]
21 3.4.32 [ OK ]
22 3.5.7 [ OK ]
23 3.6.11 [ OK ]
24 3.7.9 [ OK ]
25 3.8.0 [ OK ]
26 3.9-rc1 [ OK ]
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxxxxxxxx>
---
backport/compat/Kconfig | 14 ++
backport/compat/Makefile | 1 +
backport/compat/hdmi.c | 308 +++++++++++++++++++++++++++++++++++++++++
backport/include/linux/hdmi.h | 240 ++++++++++++++++++++++++++++++++
4 files changed, 563 insertions(+)
create mode 100644 backport/compat/hdmi.c
create mode 100644 backport/include/linux/hdmi.h
diff --git a/backport/compat/Kconfig b/backport/compat/Kconfig
index 14f401c..03320f7 100644
--- a/backport/compat/Kconfig
+++ b/backport/compat/Kconfig
@@ -138,6 +138,20 @@ config BACKPORT_BUILD_DMA_SHARED_BUFFER
config BACKPORT_DMA_SHARED_BUFFER
bool
+config BACKPORT_BUILD_HDMI
+ bool
+ # not possible on kernel < 3.0
+ depends on !BACKPORT_KERNEL_3_0
+ # don't build if base kernel has it, except on kernel < 3.9
+ depends on !HDMI || BACKPORT_KERNEL_3_9
+ # build for testing
+ default y if BACKPORT_USERSEL_BUILD_ALL
+ # build if a driver needs it
+ default y if BACKPORT_HDMI
+
+config BACKPORT_HDMI
+ bool
+
config BACKPORT_USERSEL_BUILD_ALL
bool "Build all compat code"
help
diff --git a/backport/compat/Makefile b/backport/compat/Makefile
index e738e2f..a4c789b 100644
--- a/backport/compat/Makefile
+++ b/backport/compat/Makefile
@@ -5,6 +5,7 @@ ccflags-y += -DBACKPORTED_KERNEL_NAME=\"$(BACKPORTED_KERNEL_NAME)\"
obj-m += compat.o
compat-y += main.o
compat-$(CPTCFG_BACKPORT_BUILD_DMA_SHARED_BUFFER) += dma-buf.o
+compat-$(CPTCFG_BACKPORT_BUILD_HDMI) += hdmi.o
obj-$(CPTCFG_BACKPORT_BUILD_FW_LOADER) += compat_firmware_class.o
diff --git a/backport/compat/hdmi.c b/backport/compat/hdmi.c
new file mode 100644
index 0000000..396e47f
--- /dev/null
+++ b/backport/compat/hdmi.c
@@ -0,0 +1,308 @@
+/*
+ * Copyright (C) 2012 Avionic Design GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/export.h>
+#include <linux/hdmi.h>
+#include <linux/string.h>
+
+static void hdmi_infoframe_checksum(void *buffer, size_t size)
+{
+ u8 *ptr = buffer;
+ u8 csum = 0;
+ size_t i;
+
+ /* compute checksum */
+ for (i = 0; i < size; i++)
+ csum += ptr[i];
+
+ ptr[3] = 256 - csum;
+}
+
+/**
+ * hdmi_avi_infoframe_init() - initialize an HDMI AVI infoframe
+ * @frame: HDMI AVI infoframe
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+
+ frame->type = HDMI_INFOFRAME_TYPE_AVI;
+ frame->version = 2;
+ frame->length = 13;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hdmi_avi_infoframe_init);
+
+/**
+ * hdmi_avi_infoframe_pack() - write HDMI AVI infoframe to binary buffer
+ * @frame: HDMI AVI infoframe
+ * @buffer: destination buffer
+ * @size: size of buffer
+ *
+ * Packs the information contained in the @frame structure into a binary
+ * representation that can be written into the corresponding controller
+ * registers. Also computes the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns the number of bytes packed into the binary buffer or a negative
+ * error code on failure.
+ */
+ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
+ size_t size)
+{
+ u8 *ptr = buffer;
+ size_t length;
+
+ length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
+
+ if (size < length)
+ return -ENOSPC;
+
+ memset(buffer, 0, length);
+
+ ptr[0] = frame->type;
+ ptr[1] = frame->version;
+ ptr[2] = frame->length;
+ ptr[3] = 0; /* checksum */
+
+ /* start infoframe payload */
+ ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+ ptr[0] = ((frame->colorspace & 0x3) << 5) | (frame->scan_mode & 0x3);
+
+ if (frame->active_info_valid)
+ ptr[0] |= BIT(4);
+
+ if (frame->horizontal_bar_valid)
+ ptr[0] |= BIT(3);
+
+ if (frame->vertical_bar_valid)
+ ptr[0] |= BIT(2);
+
+ ptr[1] = ((frame->colorimetry & 0x3) << 6) |
+ ((frame->picture_aspect & 0x3) << 4) |
+ (frame->active_aspect & 0xf);
+
+ ptr[2] = ((frame->extended_colorimetry & 0x7) << 4) |
+ ((frame->quantization_range & 0x3) << 2) |
+ (frame->nups & 0x3);
+
+ if (frame->itc)
+ ptr[2] |= BIT(7);
+
+ ptr[3] = frame->video_code & 0x7f;
+
+ ptr[4] = ((frame->ycc_quantization_range & 0x3) << 6) |
+ ((frame->content_type & 0x3) << 4) |
+ (frame->pixel_repeat & 0xf);
+
+ ptr[5] = frame->top_bar & 0xff;
+ ptr[6] = (frame->top_bar >> 8) & 0xff;
+ ptr[7] = frame->bottom_bar & 0xff;
+ ptr[8] = (frame->bottom_bar >> 8) & 0xff;
+ ptr[9] = frame->left_bar & 0xff;
+ ptr[10] = (frame->left_bar >> 8) & 0xff;
+ ptr[11] = frame->right_bar & 0xff;
+ ptr[12] = (frame->right_bar >> 8) & 0xff;
+
+ hdmi_infoframe_checksum(buffer, length);
+
+ return length;
+}
+EXPORT_SYMBOL_GPL(hdmi_avi_infoframe_pack);
+
+/**
+ * hdmi_spd_infoframe_init() - initialize an HDMI SPD infoframe
+ * @frame: HDMI SPD infoframe
+ * @vendor: vendor string
+ * @product: product string
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame,
+ const char *vendor, const char *product)
+{
+ memset(frame, 0, sizeof(*frame));
+
+ frame->type = HDMI_INFOFRAME_TYPE_SPD;
+ frame->version = 1;
+ frame->length = 25;
+
+ strncpy(frame->vendor, vendor, sizeof(frame->vendor));
+ strncpy(frame->product, product, sizeof(frame->product));
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hdmi_spd_infoframe_init);
+
+/**
+ * hdmi_spd_infoframe_pack() - write HDMI SPD infoframe to binary buffer
+ * @frame: HDMI SPD infoframe
+ * @buffer: destination buffer
+ * @size: size of buffer
+ *
+ * Packs the information contained in the @frame structure into a binary
+ * representation that can be written into the corresponding controller
+ * registers. Also computes the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns the number of bytes packed into the binary buffer or a negative
+ * error code on failure.
+ */
+ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
+ size_t size)
+{
+ u8 *ptr = buffer;
+ size_t length;
+
+ length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
+
+ if (size < length)
+ return -ENOSPC;
+
+ memset(buffer, 0, length);
+
+ ptr[0] = frame->type;
+ ptr[1] = frame->version;
+ ptr[2] = frame->length;
+ ptr[3] = 0; /* checksum */
+
+ /* start infoframe payload */
+ ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+ memcpy(ptr, frame->vendor, sizeof(frame->vendor));
+ memcpy(ptr + 8, frame->product, sizeof(frame->product));
+
+ ptr[24] = frame->sdi;
+
+ hdmi_infoframe_checksum(buffer, length);
+
+ return length;
+}
+EXPORT_SYMBOL_GPL(hdmi_spd_infoframe_pack);
+
+/**
+ * hdmi_audio_infoframe_init() - initialize an HDMI audio infoframe
+ * @frame: HDMI audio infoframe
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+
+ frame->type = HDMI_INFOFRAME_TYPE_AUDIO;
+ frame->version = 1;
+ frame->length = 10;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hdmi_audio_infoframe_init);
+
+/**
+ * hdmi_audio_infoframe_pack() - write HDMI audio infoframe to binary buffer
+ * @frame: HDMI audio infoframe
+ * @buffer: destination buffer
+ * @size: size of buffer
+ *
+ * Packs the information contained in the @frame structure into a binary
+ * representation that can be written into the corresponding controller
+ * registers. Also computes the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns the number of bytes packed into the binary buffer or a negative
+ * error code on failure.
+ */
+ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
+ void *buffer, size_t size)
+{
+ unsigned char channels;
+ u8 *ptr = buffer;
+ size_t length;
+
+ length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
+
+ if (size < length)
+ return -ENOSPC;
+
+ memset(buffer, 0, length);
+
+ if (frame->channels >= 2)
+ channels = frame->channels - 1;
+ else
+ channels = 0;
+
+ ptr[0] = frame->type;
+ ptr[1] = frame->version;
+ ptr[2] = frame->length;
+ ptr[3] = 0; /* checksum */
+
+ /* start infoframe payload */
+ ptr += HDMI_INFOFRAME_HEADER_SIZE;
+
+ ptr[0] = ((frame->coding_type & 0xf) << 4) | (channels & 0x7);
+ ptr[1] = ((frame->sample_frequency & 0x7) << 2) |
+ (frame->sample_size & 0x3);
+ ptr[2] = frame->coding_type_ext & 0x1f;
+ ptr[3] = frame->channel_allocation;
+ ptr[4] = (frame->level_shift_value & 0xf) << 3;
+
+ if (frame->downmix_inhibit)
+ ptr[4] |= BIT(7);
+
+ hdmi_infoframe_checksum(buffer, length);
+
+ return length;
+}
+EXPORT_SYMBOL_GPL(hdmi_audio_infoframe_pack);
+
+/**
+ * hdmi_vendor_infoframe_pack() - write a HDMI vendor infoframe to binary
+ * buffer
+ * @frame: HDMI vendor infoframe
+ * @buffer: destination buffer
+ * @size: size of buffer
+ *
+ * Packs the information contained in the @frame structure into a binary
+ * representation that can be written into the corresponding controller
+ * registers. Also computes the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns the number of bytes packed into the binary buffer or a negative
+ * error code on failure.
+ */
+ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
+ void *buffer, size_t size)
+{
+ u8 *ptr = buffer;
+ size_t length;
+
+ length = HDMI_INFOFRAME_HEADER_SIZE + frame->length;
+
+ if (size < length)
+ return -ENOSPC;
+
+ memset(buffer, 0, length);
+
+ ptr[0] = frame->type;
+ ptr[1] = frame->version;
+ ptr[2] = frame->length;
+ ptr[3] = 0; /* checksum */
+
+ memcpy(&ptr[HDMI_INFOFRAME_HEADER_SIZE], frame->data, frame->length);
+
+ hdmi_infoframe_checksum(buffer, length);
+
+ return length;
+}
+EXPORT_SYMBOL_GPL(hdmi_vendor_infoframe_pack);
diff --git a/backport/include/linux/hdmi.h b/backport/include/linux/hdmi.h
new file mode 100644
index 0000000..777190d
--- /dev/null
+++ b/backport/include/linux/hdmi.h
@@ -0,0 +1,240 @@
+#ifndef CPTCFG_BACKPORT_BUILD_HDMI
+#include_next <linux/hdmi.h>
+#else
+/*
+ * Copyright (C) 2012 Avionic Design GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __LINUX_HDMI_H_
+#define __LINUX_HDMI_H_
+
+#include <linux/types.h>
+
+enum hdmi_infoframe_type {
+ HDMI_INFOFRAME_TYPE_VENDOR = 0x81,
+ HDMI_INFOFRAME_TYPE_AVI = 0x82,
+ HDMI_INFOFRAME_TYPE_SPD = 0x83,
+ HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
+};
+
+#define HDMI_INFOFRAME_HEADER_SIZE 4
+#define HDMI_AVI_INFOFRAME_SIZE 13
+#define HDMI_SPD_INFOFRAME_SIZE 25
+#define HDMI_AUDIO_INFOFRAME_SIZE 10
+
+enum hdmi_colorspace {
+ HDMI_COLORSPACE_RGB,
+ HDMI_COLORSPACE_YUV422,
+ HDMI_COLORSPACE_YUV444,
+};
+
+enum hdmi_scan_mode {
+ HDMI_SCAN_MODE_NONE,
+ HDMI_SCAN_MODE_OVERSCAN,
+ HDMI_SCAN_MODE_UNDERSCAN,
+};
+
+enum hdmi_colorimetry {
+ HDMI_COLORIMETRY_NONE,
+ HDMI_COLORIMETRY_ITU_601,
+ HDMI_COLORIMETRY_ITU_709,
+ HDMI_COLORIMETRY_EXTENDED,
+};
+
+enum hdmi_picture_aspect {
+ HDMI_PICTURE_ASPECT_NONE,
+ HDMI_PICTURE_ASPECT_4_3,
+ HDMI_PICTURE_ASPECT_16_9,
+};
+
+enum hdmi_active_aspect {
+ HDMI_ACTIVE_ASPECT_16_9_TOP = 2,
+ HDMI_ACTIVE_ASPECT_14_9_TOP = 3,
+ HDMI_ACTIVE_ASPECT_16_9_CENTER = 4,
+ HDMI_ACTIVE_ASPECT_PICTURE = 8,
+ HDMI_ACTIVE_ASPECT_4_3 = 9,
+ HDMI_ACTIVE_ASPECT_16_9 = 10,
+ HDMI_ACTIVE_ASPECT_14_9 = 11,
+ HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13,
+ HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14,
+ HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15,
+};
+
+enum hdmi_extended_colorimetry {
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_601,
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_709,
+ HDMI_EXTENDED_COLORIMETRY_S_YCC_601,
+ HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601,
+ HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB,
+};
+
+enum hdmi_quantization_range {
+ HDMI_QUANTIZATION_RANGE_DEFAULT,
+ HDMI_QUANTIZATION_RANGE_LIMITED,
+ HDMI_QUANTIZATION_RANGE_FULL,
+};
+
+/* non-uniform picture scaling */
+enum hdmi_nups {
+ HDMI_NUPS_UNKNOWN,
+ HDMI_NUPS_HORIZONTAL,
+ HDMI_NUPS_VERTICAL,
+ HDMI_NUPS_BOTH,
+};
+
+enum hdmi_ycc_quantization_range {
+ HDMI_YCC_QUANTIZATION_RANGE_LIMITED,
+ HDMI_YCC_QUANTIZATION_RANGE_FULL,
+};
+
+enum hdmi_content_type {
+ HDMI_CONTENT_TYPE_NONE,
+ HDMI_CONTENT_TYPE_PHOTO,
+ HDMI_CONTENT_TYPE_CINEMA,
+ HDMI_CONTENT_TYPE_GAME,
+};
+
+struct hdmi_avi_infoframe {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+ enum hdmi_colorspace colorspace;
+ bool active_info_valid;
+ bool horizontal_bar_valid;
+ bool vertical_bar_valid;
+ enum hdmi_scan_mode scan_mode;
+ enum hdmi_colorimetry colorimetry;
+ enum hdmi_picture_aspect picture_aspect;
+ enum hdmi_active_aspect active_aspect;
+ bool itc;
+ enum hdmi_extended_colorimetry extended_colorimetry;
+ enum hdmi_quantization_range quantization_range;
+ enum hdmi_nups nups;
+ unsigned char video_code;
+ enum hdmi_ycc_quantization_range ycc_quantization_range;
+ enum hdmi_content_type content_type;
+ unsigned char pixel_repeat;
+ unsigned short top_bar;
+ unsigned short bottom_bar;
+ unsigned short left_bar;
+ unsigned short right_bar;
+};
+
+int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
+ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
+ size_t size);
+
+enum hdmi_spd_sdi {
+ HDMI_SPD_SDI_UNKNOWN,
+ HDMI_SPD_SDI_DSTB,
+ HDMI_SPD_SDI_DVDP,
+ HDMI_SPD_SDI_DVHS,
+ HDMI_SPD_SDI_HDDVR,
+ HDMI_SPD_SDI_DVC,
+ HDMI_SPD_SDI_DSC,
+ HDMI_SPD_SDI_VCD,
+ HDMI_SPD_SDI_GAME,
+ HDMI_SPD_SDI_PC,
+ HDMI_SPD_SDI_BD,
+ HDMI_SPD_SDI_SACD,
+ HDMI_SPD_SDI_HDDVD,
+ HDMI_SPD_SDI_PMP,
+};
+
+struct hdmi_spd_infoframe {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+ char vendor[8];
+ char product[16];
+ enum hdmi_spd_sdi sdi;
+};
+
+#define hdmi_spd_infoframe_init LINUX_BACKPORT(hdmi_spd_infoframe_init)
+int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame,
+ const char *vendor, const char *product);
+#define hdmi_spd_infoframe_pack LINUX_BACKPORT(hdmi_spd_infoframe_pack)
+ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
+ size_t size);
+
+enum hdmi_audio_coding_type {
+ HDMI_AUDIO_CODING_TYPE_STREAM,
+ HDMI_AUDIO_CODING_TYPE_PCM,
+ HDMI_AUDIO_CODING_TYPE_AC3,
+ HDMI_AUDIO_CODING_TYPE_MPEG1,
+ HDMI_AUDIO_CODING_TYPE_MP3,
+ HDMI_AUDIO_CODING_TYPE_MPEG2,
+ HDMI_AUDIO_CODING_TYPE_AAC_LC,
+ HDMI_AUDIO_CODING_TYPE_DTS,
+ HDMI_AUDIO_CODING_TYPE_ATRAC,
+ HDMI_AUDIO_CODING_TYPE_DSD,
+ HDMI_AUDIO_CODING_TYPE_EAC3,
+ HDMI_AUDIO_CODING_TYPE_DTS_HD,
+ HDMI_AUDIO_CODING_TYPE_MLP,
+ HDMI_AUDIO_CODING_TYPE_DST,
+ HDMI_AUDIO_CODING_TYPE_WMA_PRO,
+};
+
+enum hdmi_audio_sample_size {
+ HDMI_AUDIO_SAMPLE_SIZE_STREAM,
+ HDMI_AUDIO_SAMPLE_SIZE_16,
+ HDMI_AUDIO_SAMPLE_SIZE_20,
+ HDMI_AUDIO_SAMPLE_SIZE_24,
+};
+
+enum hdmi_audio_sample_frequency {
+ HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM,
+ HDMI_AUDIO_SAMPLE_FREQUENCY_32000,
+ HDMI_AUDIO_SAMPLE_FREQUENCY_44100,
+ HDMI_AUDIO_SAMPLE_FREQUENCY_48000,
+ HDMI_AUDIO_SAMPLE_FREQUENCY_88200,
+ HDMI_AUDIO_SAMPLE_FREQUENCY_96000,
+ HDMI_AUDIO_SAMPLE_FREQUENCY_176400,
+ HDMI_AUDIO_SAMPLE_FREQUENCY_192000,
+};
+
+enum hdmi_audio_coding_type_ext {
+ HDMI_AUDIO_CODING_TYPE_EXT_STREAM,
+ HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC,
+ HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2,
+ HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND,
+};
+
+struct hdmi_audio_infoframe {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+ unsigned char channels;
+ enum hdmi_audio_coding_type coding_type;
+ enum hdmi_audio_sample_size sample_size;
+ enum hdmi_audio_sample_frequency sample_frequency;
+ enum hdmi_audio_coding_type_ext coding_type_ext;
+ unsigned char channel_allocation;
+ unsigned char level_shift_value;
+ bool downmix_inhibit;
+
+};
+
+#define hdmi_audio_infoframe_init LINUX_BACKPORT(hdmi_audio_infoframe_init)
+int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame);
+#define hdmi_audio_infoframe_pack LINUX_BACKPORT(hdmi_audio_infoframe_pack)
+ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
+ void *buffer, size_t size);
+
+struct hdmi_vendor_infoframe {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+ u8 data[27];
+};
+
+#define hdmi_vendor_infoframe_pack LINUX_BACKPORT(hdmi_vendor_infoframe_pack)
+ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
+ void *buffer, size_t size);
+
+#endif /* _DRM_HDMI_H */
+#endif /* CPTCFG_BACKPORT_BUILD_HDMI */
--
1.7.10.4
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