Skip to content

L
linux
Commit 91504877 authored by Wu, Fengguang's avatar Wu, Fengguang Committed by Takashi Iwai
Browse files
Options

ALSA: hda - Intel HDMI audio support 

Add support for Intel G45 integrated HDMI audio codecs.

This initial release supports:
	- 2 channel stereo sound output
	- report monitor's ELD information
Signed-off-by: default avatarWu Fengguang <wfg@linux.intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent bfc5c26f
Show whitespace changes
Inline Side-by-side
Showing with 940 additions and 0 deletions
sound/pci/Kconfig
View file @ 91504877
...@@ -574,6 +574,14 @@ config SND_HDA_CODEC_NVHDMI ...@@ -574,6 +574,14 @@ config SND_HDA_CODEC_NVHDMI
Say Y here to include NVIDIA HDMI HD-audio codec support in Say Y here to include NVIDIA HDMI HD-audio codec support in
snd-hda-intel driver, such as NVIDIA MCP78 HDMI. snd-hda-intel driver, such as NVIDIA MCP78 HDMI.
config SND_HDA_CODEC_INTELHDMI
bool "Build INTEL HDMI HD-audio codec support"
depends on SND_HDA_INTEL
default y
help
Say Y here to include INTEL HDMI HD-audio codec support in
snd-hda-intel driver, such as Eaglelake integrated HDMI.
config SND_HDA_CODEC_CONEXANT config SND_HDA_CODEC_CONEXANT
bool "Build Conexant HD-audio codec support" bool "Build Conexant HD-audio codec support"
depends on SND_HDA_INTEL depends on SND_HDA_INTEL
......
sound/pci/hda/Makefile
View file @ 91504877
...@@ -16,5 +16,6 @@ snd-hda-intel-$(CONFIG_SND_HDA_CODEC_ATIHDMI) += patch_atihdmi.o ...@@ -16,5 +16,6 @@ snd-hda-intel-$(CONFIG_SND_HDA_CODEC_ATIHDMI) += patch_atihdmi.o
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_CONEXANT) += patch_conexant.o snd-hda-intel-$(CONFIG_SND_HDA_CODEC_CONEXANT) += patch_conexant.o
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_VIA) += patch_via.o snd-hda-intel-$(CONFIG_SND_HDA_CODEC_VIA) += patch_via.o
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_NVHDMI) += patch_nvhdmi.o snd-hda-intel-$(CONFIG_SND_HDA_CODEC_NVHDMI) += patch_nvhdmi.o
snd-hda-intel-$(CONFIG_SND_HDA_CODEC_INTELHDMI) += patch_intelhdmi.o
obj-$(CONFIG_SND_HDA_INTEL) += snd-hda-intel.o obj-$(CONFIG_SND_HDA_INTEL) += snd-hda-intel.o
sound/pci/hda/hda_codec.c
View file @ 91504877
...@@ -97,6 +97,9 @@ static const struct hda_codec_preset *hda_preset_tables[] = { ...@@ -97,6 +97,9 @@ static const struct hda_codec_preset *hda_preset_tables[] = {
#endif #endif
#ifdef CONFIG_SND_HDA_CODEC_NVHDMI #ifdef CONFIG_SND_HDA_CODEC_NVHDMI
snd_hda_preset_nvhdmi, snd_hda_preset_nvhdmi,
#endif
#ifdef CONFIG_SND_HDA_CODEC_INTELHDMI
snd_hda_preset_intelhdmi,
#endif #endif
NULL NULL
}; };
......
sound/pci/hda/hda_patch.h
View file @ 91504877
...@@ -20,3 +20,5 @@ extern struct hda_codec_preset snd_hda_preset_conexant[]; ...@@ -20,3 +20,5 @@ extern struct hda_codec_preset snd_hda_preset_conexant[];
extern struct hda_codec_preset snd_hda_preset_via[]; extern struct hda_codec_preset snd_hda_preset_via[];
/* NVIDIA HDMI codecs */ /* NVIDIA HDMI codecs */
extern struct hda_codec_preset snd_hda_preset_nvhdmi[]; extern struct hda_codec_preset snd_hda_preset_nvhdmi[];
/* INTEL HDMI codecs */
extern struct hda_codec_preset snd_hda_preset_intelhdmi[];
sound/pci/hda/patch_intelhdmi.c 0 → 100644
View file @ 91504877
/*
*
* patch_intelhdmi.c - Patch for Intel HDMI codecs
*
* Copyright(c) 2008 Intel Corporation. All rights reserved.
*
* Authors:
* Jiang Zhe <zhe.jiang@intel.com>
* Wu Fengguang <wfg@linux.intel.com>
*
* Maintained by:
* Wu Fengguang <wfg@linux.intel.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <asm/unaligned.h>
#include "hda_codec.h"
#include "hda_local.h"
#include "hda_patch.h"
#define CVT_NID 0x02 /* audio converter */
#define PIN_NID 0x03 /* HDMI output pin */
#define INTEL_HDMI_EVENT_TAG 0x08
/*
* CEA Short Audio Descriptor data
*/
struct cea_sad {
int channels;
int format; /* (format == 0) indicates invalid SAD */
int rates;
int sample_bits; /* for LPCM */
int max_bitrate; /* for AC3...ATRAC */
int profile; /* for WMAPRO */
};
#define ELD_FIXED_BYTES 20
#define ELD_MAX_MNL 16
#define ELD_MAX_SAD 16
/*
* ELD: EDID Like Data
*/
struct sink_eld {
int eld_size;
int baseline_len;
int eld_ver; /* (eld_ver == 0) indicates invalid ELD */
int cea_edid_ver;
char monitor_name[ELD_MAX_MNL + 1];
int manufacture_id;
int product_id;
u64 port_id;
int support_hdcp;
int support_ai;
int conn_type;
int aud_synch_delay;
int spk_alloc;
int sad_count;
struct cea_sad sad[ELD_MAX_SAD];
};
struct intel_hdmi_spec {
struct hda_multi_out multiout;
struct hda_pcm pcm_rec;
struct sink_eld sink;
};
static struct hda_verb pinout_enable_verb[] = {
{PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
{} /* terminator */
};
static struct hda_verb pinout_disable_verb[] = {
{PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x00},
{}
};
static struct hda_verb unsolicited_response_verb[] = {
{PIN_NID, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN |
INTEL_HDMI_EVENT_TAG},
{}
};
static struct hda_verb def_chan_map[] = {
{CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x00},
{CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x11},
{CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x22},
{CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x33},
{CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x44},
{CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x55},
{CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x66},
{CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x77},
{}
};
struct hdmi_audio_infoframe {
u8 type; /* 0x84 */
u8 ver; /* 0x01 */
u8 len; /* 0x0a */
u8 checksum; /* PB0 */
u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */
u8 SS01_SF24;
u8 CXT04;
u8 CA;
u8 LFEPBL01_LSV36_DM_INH7;
u8 reserved[5]; /* PB6 - PB10 */
};
/*
* SS1:SS0 index => sample size
*/
static int cea_sample_sizes[4] = {
0, /* 0: Refer to Stream Header */
AC_SUPPCM_BITS_16, /* 1: 16 bits */
AC_SUPPCM_BITS_20, /* 2: 20 bits */
AC_SUPPCM_BITS_24, /* 3: 24 bits */
};
/*
* SF2:SF1:SF0 index => sampling frequency
*/
static int cea_sampling_frequencies[8] = {
0, /* 0: Refer to Stream Header */
SNDRV_PCM_RATE_32000, /* 1: 32000Hz */
SNDRV_PCM_RATE_44100, /* 2: 44100Hz */
SNDRV_PCM_RATE_48000, /* 3: 48000Hz */
SNDRV_PCM_RATE_88200, /* 4: 88200Hz */
SNDRV_PCM_RATE_96000, /* 5: 96000Hz */
SNDRV_PCM_RATE_176400, /* 6: 176400Hz */
SNDRV_PCM_RATE_192000, /* 7: 192000Hz */
};
enum eld_versions {
ELD_VER_CEA_861D = 2,
ELD_VER_PARTIAL = 31,
};
static char *eld_versoin_names[32] = {
"0-reserved",
"1-reserved",
"CEA-861D or below",
"3-reserved",
[4 ... 30] = "reserved",
[31] = "partial"
};
enum cea_edid_versions {
CEA_EDID_VER_NONE = 0,
CEA_EDID_VER_CEA861 = 1,
CEA_EDID_VER_CEA861A = 2,
CEA_EDID_VER_CEA861BCD = 3,
CEA_EDID_VER_RESERVED = 4,
};
static char *cea_edid_version_names[8] = {
"no CEA EDID Timing Extension block present",
"CEA-861",
"CEA-861-A",
"CEA-861-B, C or D",
"4-reserved",
[5 ... 7] = "reserved"
};
/*
* CEA Speaker Allocation data block bits
*/
#define CEA_SA_FLR (0 << 0)
#define CEA_SA_LFE (1 << 1)
#define CEA_SA_FC (1 << 2)
#define CEA_SA_RLR (1 << 3)
#define CEA_SA_RC (1 << 4)
#define CEA_SA_FLRC (1 << 5)
#define CEA_SA_RLRC (1 << 6)
/* the following are not defined in ELD yet */
#define CEA_SA_FLRW (1 << 7)
#define CEA_SA_FLRH (1 << 8)
#define CEA_SA_TC (1 << 9)
#define CEA_SA_FCH (1 << 10)
static char *cea_speaker_allocation_names[] = {
/* 0 */ "FL/FR",
/* 1 */ "LFE",
/* 2 */ "FC",
/* 3 */ "RL/RR",
/* 4 */ "RC",
/* 5 */ "FLC/FRC",
/* 6 */ "RLC/RRC",
/* 7 */ "FLW/FRW",
/* 8 */ "FLH/FRH",
/* 9 */ "TC",
/* 10 */ "FCH",
};
static char *eld_connection_type_names[4] = {
"HDMI",
"Display Port",
"2-reserved",
"3-reserved"
};
enum cea_audio_coding_types {
AUDIO_CODING_TYPE_REF_STREAM_HEADER = 0,
AUDIO_CODING_TYPE_LPCM = 1,
AUDIO_CODING_TYPE_AC3 = 2,
AUDIO_CODING_TYPE_MPEG1 = 3,
AUDIO_CODING_TYPE_MP3 = 4,
AUDIO_CODING_TYPE_MPEG2 = 5,
AUDIO_CODING_TYPE_AACLC = 6,
AUDIO_CODING_TYPE_DTS = 7,
AUDIO_CODING_TYPE_ATRAC = 8,
AUDIO_CODING_TYPE_SACD = 9,
AUDIO_CODING_TYPE_EAC3 = 10,
AUDIO_CODING_TYPE_DTS_HD = 11,
AUDIO_CODING_TYPE_MLP = 12,
AUDIO_CODING_TYPE_DST = 13,
AUDIO_CODING_TYPE_WMAPRO = 14,
AUDIO_CODING_TYPE_REF_CXT = 15,
/* also include valid xtypes below */
AUDIO_CODING_TYPE_HE_AAC = 15,
AUDIO_CODING_TYPE_HE_AAC2 = 16,
AUDIO_CODING_TYPE_MPEG_SURROUND = 17,
};
enum cea_audio_coding_xtypes {
AUDIO_CODING_XTYPE_HE_REF_CT = 0,
AUDIO_CODING_XTYPE_HE_AAC = 1,
AUDIO_CODING_XTYPE_HE_AAC2 = 2,
AUDIO_CODING_XTYPE_MPEG_SURROUND = 3,
AUDIO_CODING_XTYPE_FIRST_RESERVED = 4,
};
static char *cea_audio_coding_type_names[] = {
/* 0 */ "undefined",
/* 1 */ "LPCM",
/* 2 */ "AC-3",
/* 3 */ "MPEG1",
/* 4 */ "MP3",
/* 5 */ "MPEG2",
/* 6 */ "AAC-LC",
/* 7 */ "DTS",
/* 8 */ "ATRAC",
/* 9 */ "DSD(1-bit audio)",
/* 10 */ "Dolby Digital Plus(E-AC-3/DD+)",
/* 11 */ "DTS-HD",
/* 12 */ "Dolby TrueHD(MLP)",
/* 13 */ "DST",
/* 14 */ "WMAPro",
/* 15 */ "HE-AAC",
/* 16 */ "HE-AACv2",
/* 17 */ "MPEG Surround",
};
/*
* HDMI routines
*/
static int hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid)
{
return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_SIZE,
AC_DIPSIZE_ELD_BUF);
}
static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t nid,
int *packet_index, int *byte_index)
{
int val;
val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_INDEX, 0);
*packet_index = val >> 5;
*byte_index = val & 0x1f;
}
static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t nid,
int packet_index, int byte_index)
{
int val;
val = (packet_index << 5) | (byte_index & 0x1f);
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
}
static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t nid,
unsigned char val)
{
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
}
static void hdmi_enable_output(struct hda_codec *codec)
{
/* Enable pin out and unmute */
snd_hda_sequence_write(codec, pinout_enable_verb);
if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
snd_hda_codec_write(codec, PIN_NID, 0,
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
/* Enable Audio InfoFrame Transmission */
hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
snd_hda_codec_write(codec, PIN_NID, 0, AC_VERB_SET_HDMI_DIP_XMIT,
AC_DIPXMIT_BEST);
}
static void hdmi_disable_output(struct hda_codec *codec)
{
snd_hda_sequence_write(codec, pinout_disable_verb);
if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
snd_hda_codec_write(codec, PIN_NID, 0,
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
/*
* FIXME: noises may arise when playing music after reloading the
* kernel module, until the next X restart or monitor repower.
*/
}
static int hdmi_get_channel_count(struct hda_codec *codec)
{
return 1 + snd_hda_codec_read(codec, CVT_NID, 0,
AC_VERB_GET_CVT_CHAN_COUNT, 0);
}
static void hdmi_set_channel_count(struct hda_codec *codec, int chs)
{
snd_hda_codec_write(codec, CVT_NID, 0,
AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
if (chs != hdmi_get_channel_count(codec))
snd_printd(KERN_INFO "Channel count expect=%d, real=%d\n",
chs, hdmi_get_channel_count(codec));
}
static void hdmi_debug_slot_mapping(struct hda_codec *codec)
{
#ifdef CONFIG_SND_DEBUG_VERBOSE
int i;
int slot;
for (i = 0; i < 8; i++) {
slot = snd_hda_codec_read(codec, CVT_NID, 0,
AC_VERB_GET_HDMI_CHAN_SLOT, i);
printk(KERN_DEBUG "ASP channel %d => slot %d\n",
slot >> 4, slot & 0x7);
}
#endif
}
static void hdmi_setup_channel_mapping(struct hda_codec *codec)
{
snd_hda_sequence_write(codec, def_chan_map);
hdmi_debug_slot_mapping(codec);
}
/*
* ELD(EDID Like Data) routines
*/
static int hdmi_present_sense(struct hda_codec *codec, hda_nid_t nid)
{
return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PIN_SENSE, 0);
}
static void hdmi_debug_present_sense(struct hda_codec *codec)
{
#ifdef CONFIG_SND_DEBUG_VERBOSE
int eldv;
int present;
present = hdmi_present_sense(codec, PIN_NID);
eldv = (present & AC_PINSENSE_ELDV);
present = (present & AC_PINSENSE_PRESENCE);
printk(KERN_INFO "pinp = %d, eldv = %d\n", !!present, !!eldv);
#endif
}
static unsigned char hdmi_get_eld_byte(struct hda_codec *codec, int byte_index)
{
unsigned int val;
val = snd_hda_codec_read(codec, PIN_NID, 0,
AC_VERB_GET_HDMI_ELDD, byte_index);
#ifdef BE_PARANOID
printk(KERN_INFO "ELD data byte %d: 0x%x\n", byte_index, val);
#endif
if ((val & AC_ELDD_ELD_VALID) == 0) {
snd_printd(KERN_INFO "Invalid ELD data byte %d\n",
byte_index);
val = 0;
}
return val & AC_ELDD_ELD_DATA;
}
static inline unsigned char grab_bits(const unsigned char *buf,
int byte, int lowbit, int bits)
{
BUG_ON(lowbit > 7);
BUG_ON(bits > 8);
BUG_ON(bits <= 0);
return (buf[byte] >> lowbit) & ((1 << bits) - 1);
}
static void hdmi_update_short_audio_desc(struct cea_sad *a,
const unsigned char *buf)
{
int i;
int val;
val = grab_bits(buf, 1, 0, 7);
a->rates = 0;
for (i = 0; i < 7; i++)
if (val & (1 << i))
a->rates |= cea_sampling_frequencies[i + 1];
a->channels = grab_bits(buf, 0, 0, 3);
a->channels++;
a->format = grab_bits(buf, 0, 3, 4);
switch (a->format) {
case AUDIO_CODING_TYPE_REF_STREAM_HEADER:
snd_printd(KERN_INFO
"audio coding type 0 not expected in ELD\n");
break;
case AUDIO_CODING_TYPE_LPCM:
val = grab_bits(buf, 2, 0, 3);
a->sample_bits = 0;
for (i = 0; i < 3; i++)
if (val & (1 << i))
a->sample_bits |= cea_sample_sizes[i + 1];
break;
case AUDIO_CODING_TYPE_AC3:
case AUDIO_CODING_TYPE_MPEG1:
case AUDIO_CODING_TYPE_MP3:
case AUDIO_CODING_TYPE_MPEG2:
case AUDIO_CODING_TYPE_AACLC:
case AUDIO_CODING_TYPE_DTS:
case AUDIO_CODING_TYPE_ATRAC:
a->max_bitrate = grab_bits(buf, 2, 0, 8);
a->max_bitrate *= 8000;
break;
case AUDIO_CODING_TYPE_SACD:
break;
case AUDIO_CODING_TYPE_EAC3:
break;
case AUDIO_CODING_TYPE_DTS_HD:
break;
case AUDIO_CODING_TYPE_MLP:
break;
case AUDIO_CODING_TYPE_DST:
break;
case AUDIO_CODING_TYPE_WMAPRO:
a->profile = grab_bits(buf, 2, 0, 3);
break;
case AUDIO_CODING_TYPE_REF_CXT:
a->format = grab_bits(buf, 2, 3, 5);
if (a->format == AUDIO_CODING_XTYPE_HE_REF_CT ||
a->format >= AUDIO_CODING_XTYPE_FIRST_RESERVED) {
snd_printd(KERN_INFO
"audio coding xtype %d not expected in ELD\n",
a->format);
a->format = 0;
} else
a->format += AUDIO_CODING_TYPE_HE_AAC -
AUDIO_CODING_XTYPE_HE_AAC;
break;
}
}
static int hdmi_update_sink_eld(struct hda_codec *codec,
const unsigned char *buf, int size)
{
struct intel_hdmi_spec *spec = codec->spec;
struct sink_eld *e = &spec->sink;
int mnl;
int i;
e->eld_ver = grab_bits(buf, 0, 3, 5);
if (e->eld_ver != ELD_VER_CEA_861D &&
e->eld_ver != ELD_VER_PARTIAL) {
snd_printd(KERN_INFO "Unknown ELD version %d\n", e->eld_ver);
goto out_fail;
}
e->eld_size = size;
e->baseline_len = grab_bits(buf, 2, 0, 8);
mnl = grab_bits(buf, 4, 0, 5);
e->cea_edid_ver = grab_bits(buf, 4, 5, 3);
e->support_hdcp = grab_bits(buf, 5, 0, 1);
e->support_ai = grab_bits(buf, 5, 1, 1);
e->conn_type = grab_bits(buf, 5, 2, 2);
e->sad_count = grab_bits(buf, 5, 4, 4);
e->aud_synch_delay = grab_bits(buf, 6, 0, 8);
e->spk_alloc = grab_bits(buf, 7, 0, 7);
e->port_id = get_unaligned_le64(buf + 8);
/* not specified, but the spec's tendency is little endian */
e->manufacture_id = get_unaligned_le16(buf + 16);
e->product_id = get_unaligned_le16(buf + 18);
if (mnl > ELD_MAX_MNL) {
snd_printd(KERN_INFO "MNL is reserved value %d\n", mnl);
goto out_fail;
} else if (ELD_FIXED_BYTES + mnl > size) {
snd_printd(KERN_INFO "out of range MNL %d\n", mnl);
goto out_fail;
} else
strlcpy(e->monitor_name, buf + ELD_FIXED_BYTES, mnl);
for (i = 0; i < e->sad_count; i++) {
if (ELD_FIXED_BYTES + mnl + 3 * (i + 1) > size) {
snd_printd(KERN_INFO "out of range SAD %d\n", i);
goto out_fail;
}
hdmi_update_short_audio_desc(e->sad + i,
buf + ELD_FIXED_BYTES + mnl + 3 * i);
}
return 0;
out_fail:
e->eld_ver = 0;
return -EINVAL;
}
static int hdmi_get_eld(struct hda_codec *codec)
{
int i;
int ret;
int size;
unsigned char *buf;
i = hdmi_present_sense(codec, PIN_NID) & AC_PINSENSE_ELDV;
if (!i)
return -ENOENT;
size = hdmi_get_eld_size(codec, PIN_NID);
if (size == 0) {
/* wfg: workaround for ASUS P5E-VM HDMI board */
snd_printd(KERN_INFO "ELD buf size is 0, force 128\n");
size = 128;
}
if (size < ELD_FIXED_BYTES || size > PAGE_SIZE) {
snd_printd(KERN_INFO "Invalid ELD buf size %d\n", size);
return -ERANGE;
}
buf = kmalloc(size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
for (i = 0; i < size; i++)
buf[i] = hdmi_get_eld_byte(codec, i);
ret = hdmi_update_sink_eld(codec, buf, size);
kfree(buf);
return ret;
}
static void hdmi_show_short_audio_desc(struct cea_sad *a)
{
printk(KERN_INFO "coding type: %s\n",
cea_audio_coding_type_names[a->format]);
printk(KERN_INFO "channels: %d\n", a->channels);
printk(KERN_INFO "sampling frequencies: 0x%x\n", a->rates);
if (a->format == AUDIO_CODING_TYPE_LPCM)
printk(KERN_INFO "sample bits: 0x%x\n", a->sample_bits);
if (a->max_bitrate)
printk(KERN_INFO "max bitrate: %d HZ\n", a->max_bitrate);
if (a->profile)
printk(KERN_INFO "profile: %d\n", a->profile);
}
static void hdmi_show_eld(struct hda_codec *codec)
{
int i;
int j;
struct intel_hdmi_spec *spec = codec->spec;
struct sink_eld *e = &spec->sink;
char buf[80];
printk(KERN_INFO "ELD buffer size is %d\n", e->eld_size);
printk(KERN_INFO "ELD baseline len is %d*4\n", e->baseline_len);
printk(KERN_INFO "vendor block len is %d\n",
e->eld_size - e->baseline_len * 4 - 4);
printk(KERN_INFO "ELD version is %s\n",
eld_versoin_names[e->eld_ver]);
printk(KERN_INFO "CEA EDID version is %s\n",
cea_edid_version_names[e->cea_edid_ver]);
printk(KERN_INFO "manufacture id is 0x%x\n", e->manufacture_id);
printk(KERN_INFO "product id is 0x%x\n", e->product_id);
printk(KERN_INFO "port id is 0x%llx\n", (long long)e->port_id);
printk(KERN_INFO "HDCP support is %d\n", e->support_hdcp);
printk(KERN_INFO "AI support is %d\n", e->support_ai);
printk(KERN_INFO "SAD count is %d\n", e->sad_count);
printk(KERN_INFO "audio sync delay is %x\n", e->aud_synch_delay);
printk(KERN_INFO "connection type is %s\n",
eld_connection_type_names[e->conn_type]);
printk(KERN_INFO "monitor name is %s\n", e->monitor_name);
j = 0;
for (i = 0; i < ARRAY_SIZE(cea_speaker_allocation_names); i++) {
if (e->spk_alloc & (1 << i))
j += snprintf(buf + j, sizeof(buf) - j, " %s",
cea_speaker_allocation_names[i]);
}
buf[j] = '\0'; /* necessary when j == 0 */
printk(KERN_INFO "speaker allocations: (0x%x)%s\n", e->spk_alloc, buf);
for (i = 0; i < e->sad_count; i++)
hdmi_show_short_audio_desc(e->sad + i);
}
/*
* Be careful, ELD buf could be totally rubbish!
*/
static void hdmi_parse_eld(struct hda_codec *codec)
{
hdmi_debug_present_sense(codec);
if (!hdmi_get_eld(codec))
hdmi_show_eld(codec);
}
/*
* Audio Infoframe routines
*/
static void hdmi_debug_dip_size(struct hda_codec *codec)
{
#ifdef CONFIG_SND_DEBUG_VERBOSE
int i;
int size;
size = hdmi_get_eld_size(codec, PIN_NID);
printk(KERN_DEBUG "ELD buf size is %d\n", size);
for (i = 0; i < 8; i++) {
size = snd_hda_codec_read(codec, PIN_NID, 0,
AC_VERB_GET_HDMI_DIP_SIZE, i);
printk(KERN_DEBUG "DIP GP[%d] buf size is %d\n", i, size);
}
#endif
}
static void hdmi_clear_dip_buffers(struct hda_codec *codec)
{
#ifdef BE_PARANOID
int i, j;
int size;
int pi, bi;
for (i = 0; i < 8; i++) {
size = snd_hda_codec_read(codec, PIN_NID, 0,
AC_VERB_GET_HDMI_DIP_SIZE, i);
if (size == 0)
continue;
hdmi_set_dip_index(codec, PIN_NID, i, 0x0);
for (j = 1; j < 1000; j++) {
hdmi_write_dip_byte(codec, PIN_NID, 0x0);
hdmi_get_dip_index(codec, PIN_NID, &pi, &bi);
if (pi != i)
snd_printd(KERN_INFO "dip index %d: %d != %d\n",
bi, pi, i);
if (bi == 0) /* byte index wrapped around */
break;
}
snd_printd(KERN_INFO
"DIP GP[%d] buf reported size=%d, written=%d\n",
i, size, j);
}
#endif
}
static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
struct snd_pcm_substream *substream)
{
struct hdmi_audio_infoframe audio_infoframe = {
.type = 0x84,
.ver = 0x01,
.len = 0x0a,
.CC02_CT47 = substream->runtime->channels - 1,
};
u8 *params = (u8 *)&audio_infoframe;
int i;
hdmi_debug_dip_size(codec);
hdmi_clear_dip_buffers(codec); /* be paranoid */
hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
for (i = 0; i < sizeof(audio_infoframe); i++)
hdmi_write_dip_byte(codec, PIN_NID, params[i]);
}
/*
* Unsolicited events
*/
static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
{
int pind = !!(res & AC_UNSOL_RES_PD);
int eldv = !!(res & AC_UNSOL_RES_ELDV);
printk(KERN_INFO "HDMI intrinsic event: PD=%d ELDV=%d\n", pind, eldv);
if (pind && eldv) {
hdmi_parse_eld(codec);
/* TODO: do real things about ELD */
}
}
static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
{
int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
printk(KERN_INFO "HDMI non-intrinsic event: "
"SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
subtag,
cp_state,
cp_ready);
/* who cares? */
if (cp_state)
;
if (cp_ready)
;
}
static void intel_hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
{
int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
if (tag != INTEL_HDMI_EVENT_TAG) {
snd_printd(KERN_INFO
"Unexpected HDMI unsolicited event tag 0x%x\n",
tag);
return;
}
if (subtag == 0)
hdmi_intrinsic_event(codec, res);
else
hdmi_non_intrinsic_event(codec, res);
}
/*
* Callbacks
*/
static int intel_hdmi_playback_pcm_open(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
struct snd_pcm_substream *substream)
{
struct intel_hdmi_spec *spec = codec->spec;
return snd_hda_multi_out_dig_open(codec, &spec->multiout);
}
static int intel_hdmi_playback_pcm_close(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
struct snd_pcm_substream *substream)
{
struct intel_hdmi_spec *spec = codec->spec;
hdmi_disable_output(codec);
return snd_hda_multi_out_dig_close(codec, &spec->multiout);
}
static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
unsigned int stream_tag,
unsigned int format,
struct snd_pcm_substream *substream)
{
struct intel_hdmi_spec *spec = codec->spec;
snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
format, substream);
hdmi_set_channel_count(codec, substream->runtime->channels);
/* wfg: channel mapping not supported by DEVCTG */
hdmi_setup_channel_mapping(codec);
hdmi_setup_audio_infoframe(codec, substream);
hdmi_enable_output(codec);
return 0;
}
static struct hda_pcm_stream intel_hdmi_pcm_playback = {
.substreams = 1,
.channels_min = 2,
.channels_max = 8,
.nid = CVT_NID, /* NID to query formats and rates and setup streams */
.ops = {
.open = intel_hdmi_playback_pcm_open,
.close = intel_hdmi_playback_pcm_close,
.prepare = intel_hdmi_playback_pcm_prepare
},
};
static int intel_hdmi_build_pcms(struct hda_codec *codec)
{
struct intel_hdmi_spec *spec = codec->spec;
struct hda_pcm *info = &spec->pcm_rec;
codec->num_pcms = 1;
codec->pcm_info = info;
info->name = "INTEL HDMI";
info->pcm_type = HDA_PCM_TYPE_HDMI;
info->stream[SNDRV_PCM_STREAM_PLAYBACK] = intel_hdmi_pcm_playback;
return 0;
}
static int intel_hdmi_build_controls(struct hda_codec *codec)
{
struct intel_hdmi_spec *spec = codec->spec;
int err;
err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
if (err < 0)
return err;
return 0;
}
static int intel_hdmi_init(struct hda_codec *codec)
{
/* disable audio output as early as possible */
hdmi_disable_output(codec);
snd_hda_sequence_write(codec, unsolicited_response_verb);
return 0;
}
static void intel_hdmi_free(struct hda_codec *codec)
{
kfree(codec->spec);
}
static struct hda_codec_ops intel_hdmi_patch_ops = {
.init = intel_hdmi_init,
.free = intel_hdmi_free,
.build_pcms = intel_hdmi_build_pcms,
.build_controls = intel_hdmi_build_controls,
.unsol_event = intel_hdmi_unsol_event,
};
static int patch_intel_hdmi(struct hda_codec *codec)
{
struct intel_hdmi_spec *spec;
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (spec == NULL)
return -ENOMEM;
spec->multiout.num_dacs = 0; /* no analog */
spec->multiout.max_channels = 8;
spec->multiout.dig_out_nid = CVT_NID;
codec->spec = spec;
codec->patch_ops = intel_hdmi_patch_ops;
return 0;
}
struct hda_codec_preset snd_hda_preset_intelhdmi[] = {
{ .id = 0x808629fb, .name = "INTEL G45 DEVCL", .patch = patch_intel_hdmi },
{ .id = 0x80862801, .name = "INTEL G45 DEVBLC", .patch = patch_intel_hdmi },
{ .id = 0x80862802, .name = "INTEL G45 DEVCTG", .patch = patch_intel_hdmi },
{ .id = 0x80862803, .name = "INTEL G45 DEVELK", .patch = patch_intel_hdmi },
{} /* terminator */
};
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7