^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Generic routines and proc interface for ELD(EDID Like Data) information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright(c) 2008 Intel Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2013 Anssi Hannula <anssi.hannula@iki.fi>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Authors:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Wu Fengguang <wfg@linux.intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <sound/hda_chmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <sound/hda_codec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "hda_local.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) enum eld_versions {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) ELD_VER_CEA_861D = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) ELD_VER_PARTIAL = 31,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) enum cea_edid_versions {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) CEA_EDID_VER_NONE = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) CEA_EDID_VER_CEA861 = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) CEA_EDID_VER_CEA861A = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) CEA_EDID_VER_CEA861BCD = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) CEA_EDID_VER_RESERVED = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static const char * const eld_connection_type_names[4] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) "HDMI",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) "DisplayPort",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) "2-reserved",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) "3-reserved"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) enum cea_audio_coding_types {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) AUDIO_CODING_TYPE_REF_STREAM_HEADER = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) AUDIO_CODING_TYPE_LPCM = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) AUDIO_CODING_TYPE_AC3 = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) AUDIO_CODING_TYPE_MPEG1 = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) AUDIO_CODING_TYPE_MP3 = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) AUDIO_CODING_TYPE_MPEG2 = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) AUDIO_CODING_TYPE_AACLC = 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) AUDIO_CODING_TYPE_DTS = 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) AUDIO_CODING_TYPE_ATRAC = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) AUDIO_CODING_TYPE_SACD = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) AUDIO_CODING_TYPE_EAC3 = 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) AUDIO_CODING_TYPE_DTS_HD = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) AUDIO_CODING_TYPE_MLP = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) AUDIO_CODING_TYPE_DST = 13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) AUDIO_CODING_TYPE_WMAPRO = 14,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) AUDIO_CODING_TYPE_REF_CXT = 15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /* also include valid xtypes below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) AUDIO_CODING_TYPE_HE_AAC = 15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) AUDIO_CODING_TYPE_HE_AAC2 = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) AUDIO_CODING_TYPE_MPEG_SURROUND = 17,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) enum cea_audio_coding_xtypes {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) AUDIO_CODING_XTYPE_HE_REF_CT = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) AUDIO_CODING_XTYPE_HE_AAC = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) AUDIO_CODING_XTYPE_HE_AAC2 = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) AUDIO_CODING_XTYPE_MPEG_SURROUND = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) AUDIO_CODING_XTYPE_FIRST_RESERVED = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static const char * const cea_audio_coding_type_names[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /* 0 */ "undefined",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) /* 1 */ "LPCM",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /* 2 */ "AC-3",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* 3 */ "MPEG1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) /* 4 */ "MP3",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /* 5 */ "MPEG2",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* 6 */ "AAC-LC",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) /* 7 */ "DTS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /* 8 */ "ATRAC",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /* 9 */ "DSD (One Bit Audio)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* 10 */ "E-AC-3/DD+ (Dolby Digital Plus)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) /* 11 */ "DTS-HD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /* 12 */ "MLP (Dolby TrueHD)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) /* 13 */ "DST",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /* 14 */ "WMAPro",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) /* 15 */ "HE-AAC",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* 16 */ "HE-AACv2",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) /* 17 */ "MPEG Surround",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * The following two lists are shared between
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * - HDMI audio InfoFrame (source to sink)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * - CEA E-EDID Extension (sink to source)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * SS1:SS0 index => sample size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static const int cea_sample_sizes[4] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 0, /* 0: Refer to Stream Header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) AC_SUPPCM_BITS_16, /* 1: 16 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) AC_SUPPCM_BITS_20, /* 2: 20 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) AC_SUPPCM_BITS_24, /* 3: 24 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * SF2:SF1:SF0 index => sampling frequency
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) static const int cea_sampling_frequencies[8] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 0, /* 0: Refer to Stream Header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) SNDRV_PCM_RATE_32000, /* 1: 32000Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) SNDRV_PCM_RATE_44100, /* 2: 44100Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) SNDRV_PCM_RATE_48000, /* 3: 48000Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) SNDRV_PCM_RATE_88200, /* 4: 88200Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) SNDRV_PCM_RATE_96000, /* 5: 96000Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) SNDRV_PCM_RATE_176400, /* 6: 176400Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) SNDRV_PCM_RATE_192000, /* 7: 192000Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static unsigned int hdmi_get_eld_data(struct hda_codec *codec, hda_nid_t nid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) int byte_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) val = snd_hda_codec_read(codec, nid, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) AC_VERB_GET_HDMI_ELDD, byte_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #ifdef BE_PARANOID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) codec_info(codec, "HDMI: ELD data byte %d: 0x%x\n", byte_index, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) #define GRAB_BITS(buf, byte, lowbit, bits) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) BUILD_BUG_ON(lowbit > 7); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) BUILD_BUG_ON(bits > 8); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) BUILD_BUG_ON(bits <= 0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) (buf[byte] >> (lowbit)) & ((1 << (bits)) - 1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static void hdmi_update_short_audio_desc(struct hda_codec *codec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct cea_sad *a,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) const unsigned char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) val = GRAB_BITS(buf, 1, 0, 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) a->rates = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) for (i = 0; i < 7; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) if (val & (1 << i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) a->rates |= cea_sampling_frequencies[i + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) a->channels = GRAB_BITS(buf, 0, 0, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) a->channels++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) a->sample_bits = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) a->max_bitrate = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) a->format = GRAB_BITS(buf, 0, 3, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) switch (a->format) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) case AUDIO_CODING_TYPE_REF_STREAM_HEADER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) codec_info(codec, "HDMI: audio coding type 0 not expected\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) case AUDIO_CODING_TYPE_LPCM:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) val = GRAB_BITS(buf, 2, 0, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) for (i = 0; i < 3; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) if (val & (1 << i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) a->sample_bits |= cea_sample_sizes[i + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) case AUDIO_CODING_TYPE_AC3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) case AUDIO_CODING_TYPE_MPEG1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) case AUDIO_CODING_TYPE_MP3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) case AUDIO_CODING_TYPE_MPEG2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) case AUDIO_CODING_TYPE_AACLC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) case AUDIO_CODING_TYPE_DTS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) case AUDIO_CODING_TYPE_ATRAC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) a->max_bitrate = GRAB_BITS(buf, 2, 0, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) a->max_bitrate *= 8000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) case AUDIO_CODING_TYPE_SACD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) case AUDIO_CODING_TYPE_EAC3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) case AUDIO_CODING_TYPE_DTS_HD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) case AUDIO_CODING_TYPE_MLP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) case AUDIO_CODING_TYPE_DST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) case AUDIO_CODING_TYPE_WMAPRO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) a->profile = GRAB_BITS(buf, 2, 0, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) case AUDIO_CODING_TYPE_REF_CXT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) a->format = GRAB_BITS(buf, 2, 3, 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (a->format == AUDIO_CODING_XTYPE_HE_REF_CT ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) a->format >= AUDIO_CODING_XTYPE_FIRST_RESERVED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) codec_info(codec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) "HDMI: audio coding xtype %d not expected\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) a->format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) a->format = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) a->format += AUDIO_CODING_TYPE_HE_AAC -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) AUDIO_CODING_XTYPE_HE_AAC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) * Be careful, ELD buf could be totally rubbish!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) int snd_hdmi_parse_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) const unsigned char *buf, int size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) int mnl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) memset(e, 0, sizeof(*e));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) e->eld_ver = GRAB_BITS(buf, 0, 3, 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (e->eld_ver != ELD_VER_CEA_861D &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) e->eld_ver != ELD_VER_PARTIAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) codec_info(codec, "HDMI: Unknown ELD version %d\n", e->eld_ver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) goto out_fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) e->baseline_len = GRAB_BITS(buf, 2, 0, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) mnl = GRAB_BITS(buf, 4, 0, 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) e->cea_edid_ver = GRAB_BITS(buf, 4, 5, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) e->support_hdcp = GRAB_BITS(buf, 5, 0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) e->support_ai = GRAB_BITS(buf, 5, 1, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) e->conn_type = GRAB_BITS(buf, 5, 2, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) e->sad_count = GRAB_BITS(buf, 5, 4, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) e->aud_synch_delay = GRAB_BITS(buf, 6, 0, 8) * 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) e->spk_alloc = GRAB_BITS(buf, 7, 0, 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) e->port_id = get_unaligned_le64(buf + 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /* not specified, but the spec's tendency is little endian */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) e->manufacture_id = get_unaligned_le16(buf + 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) e->product_id = get_unaligned_le16(buf + 18);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) if (mnl > ELD_MAX_MNL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) codec_info(codec, "HDMI: MNL is reserved value %d\n", mnl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) goto out_fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) } else if (ELD_FIXED_BYTES + mnl > size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) codec_info(codec, "HDMI: out of range MNL %d\n", mnl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) goto out_fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) strlcpy(e->monitor_name, buf + ELD_FIXED_BYTES, mnl + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) for (i = 0; i < e->sad_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) if (ELD_FIXED_BYTES + mnl + 3 * (i + 1) > size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) codec_info(codec, "HDMI: out of range SAD %d\n", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) goto out_fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) hdmi_update_short_audio_desc(codec, e->sad + i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) buf + ELD_FIXED_BYTES + mnl + 3 * i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * HDMI sink's ELD info cannot always be retrieved for now, e.g.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * in console or for audio devices. Assume the highest speakers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) * configuration, to _not_ prohibit multi-channel audio playback.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) if (!e->spk_alloc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) e->spk_alloc = 0xffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) out_fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) AC_DIPSIZE_ELD_BUF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) int snd_hdmi_get_eld(struct hda_codec *codec, hda_nid_t nid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) unsigned char *buf, int *eld_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) int size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * ELD size is initialized to zero in caller function. If no errors and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * ELD is valid, actual eld_size is assigned.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) size = snd_hdmi_get_eld_size(codec, nid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) if (size == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) /* wfg: workaround for ASUS P5E-VM HDMI board */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) codec_info(codec, "HDMI: ELD buf size is 0, force 128\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) size = 128;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) if (size < ELD_FIXED_BYTES || size > ELD_MAX_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) codec_info(codec, "HDMI: invalid ELD buf size %d\n", size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) return -ERANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) /* set ELD buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) for (i = 0; i < size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) unsigned int val = hdmi_get_eld_data(codec, nid, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) * Graphics driver might be writing to ELD buffer right now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) * Just abort. The caller will repoll after a while.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (!(val & AC_ELDD_ELD_VALID)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) codec_info(codec, "HDMI: invalid ELD data byte %d\n", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) val &= AC_ELDD_ELD_DATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) * The first byte cannot be zero. This can happen on some DVI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) * connections. Some Intel chips may also need some 250ms delay
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) * to return non-zero ELD data, even when the graphics driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) * correctly writes ELD content before setting ELD_valid bit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) if (!val && !i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) codec_dbg(codec, "HDMI: 0 ELD data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) buf[i] = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) *eld_size = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * SNDRV_PCM_RATE_* and AC_PAR_PCM values don't match, print correct rates with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) * hdmi-specific routine.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) static void hdmi_print_pcm_rates(int pcm, char *buf, int buflen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) static const unsigned int alsa_rates[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000, 64000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 88200, 96000, 176400, 192000, 384000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) for (i = 0, j = 0; i < ARRAY_SIZE(alsa_rates); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (pcm & (1 << i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) j += scnprintf(buf + j, buflen - j, " %d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) alsa_rates[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) buf[j] = '\0'; /* necessary when j == 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) #define SND_PRINT_RATES_ADVISED_BUFSIZE 80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) static void hdmi_show_short_audio_desc(struct hda_codec *codec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) struct cea_sad *a)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) char buf2[8 + SND_PRINT_BITS_ADVISED_BUFSIZE] = ", bits =";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) if (!a->format)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) hdmi_print_pcm_rates(a->rates, buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) if (a->format == AUDIO_CODING_TYPE_LPCM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) snd_print_pcm_bits(a->sample_bits, buf2 + 8, sizeof(buf2) - 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) else if (a->max_bitrate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) snprintf(buf2, sizeof(buf2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) ", max bitrate = %d", a->max_bitrate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) buf2[0] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) codec_dbg(codec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) "HDMI: supports coding type %s: channels = %d, rates =%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) cea_audio_coding_type_names[a->format],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) a->channels, buf, buf2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) void snd_hdmi_show_eld(struct hda_codec *codec, struct parsed_hdmi_eld *e)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) codec_dbg(codec, "HDMI: detected monitor %s at connection type %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) e->monitor_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) eld_connection_type_names[e->conn_type]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (e->spk_alloc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) snd_hdac_print_channel_allocation(e->spk_alloc, buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) codec_dbg(codec, "HDMI: available speakers:%s\n", buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) for (i = 0; i < e->sad_count; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) hdmi_show_short_audio_desc(codec, e->sad + i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) #ifdef CONFIG_SND_PROC_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) static void hdmi_print_sad_info(int i, struct cea_sad *a,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) struct snd_info_buffer *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) snd_iprintf(buffer, "sad%d_coding_type\t[0x%x] %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) i, a->format, cea_audio_coding_type_names[a->format]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) snd_iprintf(buffer, "sad%d_channels\t\t%d\n", i, a->channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) hdmi_print_pcm_rates(a->rates, buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) snd_iprintf(buffer, "sad%d_rates\t\t[0x%x]%s\n", i, a->rates, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (a->format == AUDIO_CODING_TYPE_LPCM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) snd_print_pcm_bits(a->sample_bits, buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) snd_iprintf(buffer, "sad%d_bits\t\t[0x%x]%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) i, a->sample_bits, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) if (a->max_bitrate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) snd_iprintf(buffer, "sad%d_max_bitrate\t%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) i, a->max_bitrate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (a->profile)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) snd_iprintf(buffer, "sad%d_profile\t\t%d\n", i, a->profile);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) struct snd_info_buffer *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) struct parsed_hdmi_eld *e = &eld->info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) static const char * const eld_version_names[32] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) "reserved",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) "reserved",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) "CEA-861D or below",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) [3 ... 30] = "reserved",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) [31] = "partial"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) static const char * const cea_edid_version_names[8] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) "no CEA EDID Timing Extension block present",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) "CEA-861",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) "CEA-861-A",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) "CEA-861-B, C or D",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) [4 ... 7] = "reserved"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) snd_iprintf(buffer, "monitor_present\t\t%d\n", eld->monitor_present);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) snd_iprintf(buffer, "eld_valid\t\t%d\n", eld->eld_valid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (!eld->eld_valid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) snd_iprintf(buffer, "monitor_name\t\t%s\n", e->monitor_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) snd_iprintf(buffer, "connection_type\t\t%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) eld_connection_type_names[e->conn_type]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) snd_iprintf(buffer, "eld_version\t\t[0x%x] %s\n", e->eld_ver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) eld_version_names[e->eld_ver]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) snd_iprintf(buffer, "edid_version\t\t[0x%x] %s\n", e->cea_edid_ver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) cea_edid_version_names[e->cea_edid_ver]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) snd_iprintf(buffer, "manufacture_id\t\t0x%x\n", e->manufacture_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) snd_iprintf(buffer, "product_id\t\t0x%x\n", e->product_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) snd_iprintf(buffer, "port_id\t\t\t0x%llx\n", (long long)e->port_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) snd_iprintf(buffer, "support_hdcp\t\t%d\n", e->support_hdcp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) snd_iprintf(buffer, "support_ai\t\t%d\n", e->support_ai);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) snd_iprintf(buffer, "audio_sync_delay\t%d\n", e->aud_synch_delay);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) snd_hdac_print_channel_allocation(e->spk_alloc, buf, sizeof(buf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) snd_iprintf(buffer, "speakers\t\t[0x%x]%s\n", e->spk_alloc, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) snd_iprintf(buffer, "sad_count\t\t%d\n", e->sad_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) for (i = 0; i < e->sad_count; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) hdmi_print_sad_info(i, e->sad + i, buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) struct snd_info_buffer *buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) struct parsed_hdmi_eld *e = &eld->info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) char line[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) char name[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) char *sname;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) long long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) unsigned int n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) while (!snd_info_get_line(buffer, line, sizeof(line))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) if (sscanf(line, "%s %llx", name, &val) != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) * We don't allow modification to these fields:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) * monitor_name manufacture_id product_id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) * eld_version edid_version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) if (!strcmp(name, "monitor_present"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) eld->monitor_present = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) else if (!strcmp(name, "eld_valid"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) eld->eld_valid = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) else if (!strcmp(name, "connection_type"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) e->conn_type = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) else if (!strcmp(name, "port_id"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) e->port_id = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) else if (!strcmp(name, "support_hdcp"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) e->support_hdcp = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) else if (!strcmp(name, "support_ai"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) e->support_ai = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) else if (!strcmp(name, "audio_sync_delay"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) e->aud_synch_delay = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) else if (!strcmp(name, "speakers"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) e->spk_alloc = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) else if (!strcmp(name, "sad_count"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) e->sad_count = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) else if (!strncmp(name, "sad", 3)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) sname = name + 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) n = name[3] - '0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (name[4] >= '0' && name[4] <= '9') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) sname++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) n = 10 * n + name[4] - '0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) if (n >= ELD_MAX_SAD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) if (!strcmp(sname, "_coding_type"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) e->sad[n].format = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) else if (!strcmp(sname, "_channels"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) e->sad[n].channels = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) else if (!strcmp(sname, "_rates"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) e->sad[n].rates = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) else if (!strcmp(sname, "_bits"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) e->sad[n].sample_bits = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) else if (!strcmp(sname, "_max_bitrate"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) e->sad[n].max_bitrate = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) else if (!strcmp(sname, "_profile"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) e->sad[n].profile = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) if (n >= e->sad_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) e->sad_count = n + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) #endif /* CONFIG_SND_PROC_FS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) /* update PCM info based on ELD */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) struct hda_pcm_stream *hinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) u32 rates;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) u64 formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) unsigned int maxbps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) unsigned int channels_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) /* assume basic audio support (the basic audio flag is not in ELD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) * however, all audio capable sinks are required to support basic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) * audio) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) SNDRV_PCM_RATE_48000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) formats = SNDRV_PCM_FMTBIT_S16_LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) maxbps = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) channels_max = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) for (i = 0; i < e->sad_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) struct cea_sad *a = &e->sad[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) rates |= a->rates;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) if (a->channels > channels_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) channels_max = a->channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) if (a->format == AUDIO_CODING_TYPE_LPCM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) if (a->sample_bits & AC_SUPPCM_BITS_20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) formats |= SNDRV_PCM_FMTBIT_S32_LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) if (maxbps < 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) maxbps = 20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) if (a->sample_bits & AC_SUPPCM_BITS_24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) formats |= SNDRV_PCM_FMTBIT_S32_LE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) if (maxbps < 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) maxbps = 24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) /* restrict the parameters by the values the codec provides */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) hinfo->rates &= rates;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) hinfo->formats &= formats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) hinfo->maxbps = min(hinfo->maxbps, maxbps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) hinfo->channels_max = min(hinfo->channels_max, channels_max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) /* ATI/AMD specific stuff (ELD emulation) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) #define ATI_VERB_SET_AUDIO_DESCRIPTOR 0x776
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) #define ATI_VERB_SET_SINK_INFO_INDEX 0x780
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) #define ATI_VERB_GET_SPEAKER_ALLOCATION 0xf70
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) #define ATI_VERB_GET_AUDIO_DESCRIPTOR 0xf76
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) #define ATI_VERB_GET_AUDIO_VIDEO_DELAY 0xf7b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) #define ATI_VERB_GET_SINK_INFO_INDEX 0xf80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) #define ATI_VERB_GET_SINK_INFO_DATA 0xf81
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) #define ATI_SPKALLOC_SPKALLOC 0x007f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) #define ATI_SPKALLOC_TYPE_HDMI 0x0100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) #define ATI_SPKALLOC_TYPE_DISPLAYPORT 0x0200
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) /* first three bytes are just standard SAD */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) #define ATI_AUDIODESC_CHANNELS 0x00000007
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) #define ATI_AUDIODESC_RATES 0x0000ff00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) #define ATI_AUDIODESC_LPCM_STEREO_RATES 0xff000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) /* in standard HDMI VSDB format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) #define ATI_DELAY_VIDEO_LATENCY 0x000000ff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) #define ATI_DELAY_AUDIO_LATENCY 0x0000ff00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) enum ati_sink_info_idx {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) ATI_INFO_IDX_MANUFACTURER_ID = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) ATI_INFO_IDX_PRODUCT_ID = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) ATI_INFO_IDX_SINK_DESC_LEN = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) ATI_INFO_IDX_PORT_ID_LOW = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) ATI_INFO_IDX_PORT_ID_HIGH = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) ATI_INFO_IDX_SINK_DESC_FIRST = 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) ATI_INFO_IDX_SINK_DESC_LAST = 22, /* max len 18 bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) unsigned char *buf, int *eld_size, bool rev3_or_later)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) int spkalloc, ati_sad, aud_synch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) int sink_desc_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) int pos, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) /* ATI/AMD does not have ELD, emulate it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) spkalloc = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SPEAKER_ALLOCATION, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) if (spkalloc <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) codec_info(codec, "HDMI ATI/AMD: no speaker allocation for ELD\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) memset(buf, 0, ELD_FIXED_BYTES + ELD_MAX_MNL + ELD_MAX_SAD * 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) /* version */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) buf[0] = ELD_VER_CEA_861D << 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) /* speaker allocation from EDID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) buf[7] = spkalloc & ATI_SPKALLOC_SPKALLOC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) /* is DisplayPort? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) if (spkalloc & ATI_SPKALLOC_TYPE_DISPLAYPORT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) buf[5] |= 0x04;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) pos = ELD_FIXED_BYTES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) if (rev3_or_later) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) int sink_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PORT_ID_LOW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) put_unaligned_le32(sink_info, buf + 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PORT_ID_HIGH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) put_unaligned_le32(sink_info, buf + 12);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_MANUFACTURER_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) put_unaligned_le16(sink_info, buf + 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PRODUCT_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) put_unaligned_le16(sink_info, buf + 18);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_SINK_DESC_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) sink_desc_len = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) if (sink_desc_len > ELD_MAX_MNL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) codec_info(codec, "HDMI ATI/AMD: Truncating HDMI sink description with length %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) sink_desc_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) sink_desc_len = ELD_MAX_MNL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) buf[4] |= sink_desc_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) for (i = 0; i < sink_desc_len; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_SINK_DESC_FIRST + i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) buf[pos++] = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) for (i = AUDIO_CODING_TYPE_LPCM; i <= AUDIO_CODING_TYPE_WMAPRO; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) if (i == AUDIO_CODING_TYPE_SACD || i == AUDIO_CODING_TYPE_DST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) continue; /* not handled by ATI/AMD */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_AUDIO_DESCRIPTOR, i << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) ati_sad = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_AUDIO_DESCRIPTOR, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) if (ati_sad <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) if (ati_sad & ATI_AUDIODESC_RATES) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) /* format is supported, copy SAD as-is */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) buf[pos++] = (ati_sad & 0x0000ff) >> 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) buf[pos++] = (ati_sad & 0x00ff00) >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) buf[pos++] = (ati_sad & 0xff0000) >> 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) if (i == AUDIO_CODING_TYPE_LPCM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) && (ati_sad & ATI_AUDIODESC_LPCM_STEREO_RATES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) && (ati_sad & ATI_AUDIODESC_LPCM_STEREO_RATES) >> 16 != (ati_sad & ATI_AUDIODESC_RATES)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) /* for PCM there is a separate stereo rate mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) buf[pos++] = ((ati_sad & 0x000000ff) & ~ATI_AUDIODESC_CHANNELS) | 0x1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) /* rates from the extra byte */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) buf[pos++] = (ati_sad & 0xff000000) >> 24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) buf[pos++] = (ati_sad & 0x00ff0000) >> 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) if (pos == ELD_FIXED_BYTES + sink_desc_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) codec_info(codec, "HDMI ATI/AMD: no audio descriptors for ELD\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) * HDMI VSDB latency format:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) * separately for both audio and video:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) * 0 field not valid or unknown latency
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) * [1..251] msecs = (x-1)*2 (max 500ms with x = 251 = 0xfb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) * 255 audio/video not supported
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) * HDA latency format:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) * single value indicating video latency relative to audio:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) * 0 unknown or 0ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) * [1..250] msecs = x*2 (max 500ms with x = 250 = 0xfa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) * [251..255] reserved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) aud_synch = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_AUDIO_VIDEO_DELAY, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) if ((aud_synch & ATI_DELAY_VIDEO_LATENCY) && (aud_synch & ATI_DELAY_AUDIO_LATENCY)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) int video_latency_hdmi = (aud_synch & ATI_DELAY_VIDEO_LATENCY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) int audio_latency_hdmi = (aud_synch & ATI_DELAY_AUDIO_LATENCY) >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) if (video_latency_hdmi <= 0xfb && audio_latency_hdmi <= 0xfb &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) video_latency_hdmi > audio_latency_hdmi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) buf[6] = video_latency_hdmi - audio_latency_hdmi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) /* else unknown/invalid or 0ms or video ahead of audio, so use zero */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) /* SAD count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) buf[5] |= ((pos - ELD_FIXED_BYTES - sink_desc_len) / 3) << 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) /* Baseline ELD block length is 4-byte aligned */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) pos = round_up(pos, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) /* Baseline ELD length (4-byte header is not counted in) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) buf[2] = (pos - 4) / 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) *eld_size = pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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