ELD handling routines can be shared by all HDMI codecs,
and they are large enough to make a standalone source file.
Signed-off-by: Wu Fengguang <wfg@xxxxxxxxxxxxxxx>
---
sound/pci/Kconfig | 4
sound/pci/hda/Makefile | 1
sound/pci/hda/hda_eld.c | 454 ++++++++++++++++++++++++++++
sound/pci/hda/hda_local.h | 41 ++
sound/pci/hda/patch_intelhdmi.c | 480 ------------------------------
5 files changed, 505 insertions(+), 475 deletions(-)
--- sound-2.6.orig/sound/pci/hda/patch_intelhdmi.c
+++ sound-2.6/sound/pci/hda/patch_intelhdmi.c
@@ -30,7 +30,6 @@
#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"
@@ -40,43 +39,6 @@
#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;
@@ -127,160 +89,9 @@ struct hdmi_audio_infoframe {
};
/*
- * 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);
-}
-
#ifdef BE_PARANOID
static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t nid,
int *packet_index, int *byte_index)
@@ -375,294 +186,13 @@ static void hdmi_setup_channel_mapping(s
}
-/*
- * 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);
+ struct intel_hdmi_spec *spec = codec->spec;
+ struct sink_eld *eld = &spec->sink;
- if (!hdmi_get_eld(codec))
- hdmi_show_eld(codec);
+ if (!snd_hdmi_get_eld(eld, codec, PIN_NID))
+ snd_hdmi_show_eld(eld);
}
@@ -676,7 +206,7 @@ static void hdmi_debug_dip_size(struct h
int i;
int size;
- size = hdmi_get_eld_size(codec, PIN_NID);
+ size = snd_hdmi_get_eld_size(codec, PIN_NID);
printk(KERN_DEBUG "ELD buf size is %d\n", size);
for (i = 0; i < 8; i++) {
--- /dev/null
+++ sound-2.6/sound/pci/hda/hda_eld.c
@@ -0,0 +1,454 @@
+/*
+ * Generic routines and proc interface for ELD(EDID Like Data) information
+ *
+ * Copyright(c) 2008 Intel Corporation.
+ *
+ * Authors:
+ * Wu Fengguang <wfg@xxxxxxxxxxxxxxx>
+ *
+ * This driver 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 driver 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 <sound/core.h>
+#include <asm/unaligned.h>
+#include "hda_codec.h"
+#include "hda_local.h"
+
+enum eld_versions {
+ ELD_VER_CEA_861D = 2,
+ ELD_VER_PARTIAL = 31,
+};
+
+static char *eld_versoin_names[32] = {
+ "reserved",
+ "reserved",
+ "CEA-861D or below",
+ [3 ... 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 ... 7] = "reserved"
+};
+
+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 */ "E-AC-3/DD+ (Dolby Digital Plus)",
+ /* 11 */ "DTS-HD",
+ /* 12 */ "MLP (Dolby TrueHD)",
+ /* 13 */ "DST",
+ /* 14 */ "WMAPro",
+ /* 15 */ "HE-AAC",
+ /* 16 */ "HE-AACv2",
+ /* 17 */ "MPEG Surround",
+};
+
+/*
+ * The following two lists are shared between
+ * - HDMI audio InfoFrame (source to sink)
+ * - CEA E-EDID extension (sink to source)
+ */
+
+/*
+ * 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 */
+};
+
+static unsigned char hdmi_get_eld_byte(struct hda_codec *codec, hda_nid_t nid,
+ int byte_index)
+{
+ unsigned int val;
+
+ val = snd_hda_codec_read(codec, 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;
+}
+
+#define GRAB_BITS(buf, byte, lowbit, bits) \
+({ \
+ BUILD_BUG_ON(lowbit > 7); \
+ BUILD_BUG_ON(bits > 8); \
+ BUILD_BUG_ON(bits <= 0); \
+ \
+ (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;
+ }
+}
+
+/*
+ * Be careful, ELD buf could be totally rubbish!
+ */
+static int hdmi_update_sink_eld(struct sink_eld *e,
+ const unsigned char *buf, int size)
+{
+ 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) * 2;
+ 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_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 int hdmi_eld_valid(struct hda_codec *codec, hda_nid_t nid)
+{
+ int eldv;
+ int present;
+
+ present = hdmi_present_sense(codec, nid);
+ eldv = (present & AC_PINSENSE_ELDV);
+ present = (present & AC_PINSENSE_PRESENCE);
+
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+ printk(KERN_INFO "pinp = %d, eldv = %d\n", !!present, !!eldv);
+#endif
+
+ return eldv && present;
+}
+
+int snd_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);
+}
+
+int snd_hdmi_get_eld(struct sink_eld *eld,
+ struct hda_codec *codec, hda_nid_t nid)
+{
+ int i;
+ int ret;
+ int size;
+ unsigned char *buf;
+
+ if (!hdmi_eld_valid(codec, nid))
+ return -ENOENT;
+
+ size = snd_hdmi_get_eld_size(codec, 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, nid, i);
+
+ ret = hdmi_update_sink_eld(eld, buf, size);
+
+ kfree(buf);
+ return ret;
+}
+
+static void hdmi_show_short_audio_desc(struct cea_sad *a)
+{
+ char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
+
+ printk(KERN_INFO "coding type: %s\n",
+ cea_audio_coding_type_names[a->format]);
+ printk(KERN_INFO "channels: %d\n", a->channels);
+
+ snd_print_pcm_rates(a->rates, buf, sizeof(buf));
+ printk(KERN_INFO "sampling frequencies: %s\n", buf);
+
+ 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\n", a->max_bitrate);
+
+ if (a->profile)
+ printk(KERN_INFO "profile: %d\n", a->profile);
+}
+
+#define HDMI_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
+static void hdmi_print_channel_allocation(int spk_alloc, char *buf, int buflen)
+{
+ int i, j;
+
+ for (i = 0, j = 0; i < ARRAY_SIZE(cea_speaker_allocation_names); i++) {
+ if (spk_alloc & (1 << i))
+ j += snprintf(buf + j, buflen - j, "%s ",
+ cea_speaker_allocation_names[i]);
+ }
+ if (j)
+ j--; /* skip last space */
+ buf[j] = '\0'; /* necessary when j == 0 */
+}
+
+void snd_hdmi_show_eld(struct sink_eld *e)
+{
+ int i;
+ char buf[HDMI_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
+
+ 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);
+
+ hdmi_print_channel_allocation(e->spk_alloc, buf, sizeof(buf));
+ 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);
+}
--- sound-2.6.orig/sound/pci/Kconfig
+++ sound-2.6/sound/pci/Kconfig
@@ -582,6 +582,10 @@ config SND_HDA_CODEC_INTELHDMI
Say Y here to include INTEL HDMI HD-audio codec support in
snd-hda-intel driver, such as Eaglelake integrated HDMI.
+config SND_HDA_ELD
+ def_bool y
+ depends on SND_HDA_CODEC_INTELHDMI
+
config SND_HDA_CODEC_CONEXANT
bool "Build Conexant HD-audio codec support"
depends on SND_HDA_INTEL
--- sound-2.6.orig/sound/pci/hda/Makefile
+++ sound-2.6/sound/pci/hda/Makefile
@@ -4,6 +4,7 @@ snd-hda-intel-y := hda_intel.o
# designed to be individual modules
snd-hda-intel-y += hda_codec.o
snd-hda-intel-$(CONFIG_PROC_FS) += hda_proc.o
+snd-hda-intel-$(CONFIG_SND_HDA_ELD) += hda_eld.o
snd-hda-intel-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o
snd-hda-intel-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o
snd-hda-intel-$(CONFIG_SND_HDA_GENERIC) += hda_generic.o
--- sound-2.6.orig/sound/pci/hda/hda_local.h
+++ sound-2.6/sound/pci/hda/hda_local.h
@@ -443,4 +443,45 @@ int snd_hda_check_amp_list_power(struct
#define get_amp_direction(kc) (((kc)->private_value >> 18) & 0x1)
#define get_amp_index(kc) (((kc)->private_value >> 19) & 0xf)
+/*
+ * 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];
+};
+
+int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
+int snd_hdmi_get_eld(struct sink_eld *, struct hda_codec *, hda_nid_t);
+void snd_hdmi_show_eld(struct sink_eld *eld);
+
#endif /* __SOUND_HDA_LOCAL_H */
--
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