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Diffstat (limited to 'sound/pci/hda/hda_eld.c')
-rw-r--r--sound/pci/hda/hda_eld.c590
1 files changed, 0 insertions, 590 deletions
diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
deleted file mode 100644
index fcad5ec31773..000000000000
--- a/sound/pci/hda/hda_eld.c
+++ /dev/null
@@ -1,590 +0,0 @@
-/*
- * Generic routines and proc interface for ELD(EDID Like Data) information
- *
- * Copyright(c) 2008 Intel Corporation.
- *
- * Authors:
- * Wu Fengguang <wfg@linux.intel.com>
- *
- * 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,
-};
-
-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_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",
- "DisplayPort",
- "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 (One 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 "HDMI: ELD data byte %d: 0x%x\n", byte_index, val);
-#endif
-
- if ((val & AC_ELDD_ELD_VALID) == 0) {
- snd_printd(KERN_INFO "HDMI: 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
- "HDMI: audio coding type 0 not expected\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
- "HDMI: audio coding xtype %d not expected\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_eld(struct hdmi_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 "HDMI: 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 "HDMI: MNL is reserved value %d\n", mnl);
- goto out_fail;
- } else if (ELD_FIXED_BYTES + mnl > size) {
- snd_printd(KERN_INFO "HDMI: 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 "HDMI: 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 "HDMI: sink_present = %d, eld_valid = %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 hdmi_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 "HDMI: ELD buf size is 0, force 128\n");
- size = 128;
- }
- if (size < ELD_FIXED_BYTES || size > PAGE_SIZE) {
- snd_printd(KERN_INFO "HDMI: 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_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];
- char buf2[8 + SND_PRINT_BITS_ADVISED_BUFSIZE] = ", bits =";
-
- if (!a->format)
- return;
-
- snd_print_pcm_rates(a->rates, buf, sizeof(buf));
-
- if (a->format == AUDIO_CODING_TYPE_LPCM)
- snd_print_pcm_bits(a->sample_bits, buf2 + 8, sizeof(buf2 - 8));
- else if (a->max_bitrate)
- snprintf(buf2, sizeof(buf2),
- ", max bitrate = %d", a->max_bitrate);
- else
- buf2[0] = '\0';
-
- printk(KERN_INFO "HDMI: supports coding type %s:"
- " channels = %d, rates =%s%s\n",
- cea_audio_coding_type_names[a->format],
- a->channels,
- buf,
- buf2);
-}
-
-void snd_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]);
- }
- buf[j] = '\0'; /* necessary when j == 0 */
-}
-
-void snd_hdmi_show_eld(struct hdmi_eld *e)
-{
- int i;
-
- printk(KERN_INFO "HDMI: detected monitor %s at connection type %s\n",
- e->monitor_name,
- eld_connection_type_names[e->conn_type]);
-
- if (e->spk_alloc) {
- char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
- snd_print_channel_allocation(e->spk_alloc, buf, sizeof(buf));
- printk(KERN_INFO "HDMI: available speakers:%s\n", buf);
- }
-
- for (i = 0; i < e->sad_count; i++)
- hdmi_show_short_audio_desc(e->sad + i);
-}
-
-#ifdef CONFIG_PROC_FS
-
-static void hdmi_print_sad_info(int i, struct cea_sad *a,
- struct snd_info_buffer *buffer)
-{
- char buf[SND_PRINT_RATES_ADVISED_BUFSIZE];
-
- snd_iprintf(buffer, "sad%d_coding_type\t[0x%x] %s\n",
- i, a->format, cea_audio_coding_type_names[a->format]);
- snd_iprintf(buffer, "sad%d_channels\t\t%d\n", i, a->channels);
-
- snd_print_pcm_rates(a->rates, buf, sizeof(buf));
- snd_iprintf(buffer, "sad%d_rates\t\t[0x%x]%s\n", i, a->rates, buf);
-
- if (a->format == AUDIO_CODING_TYPE_LPCM) {
- snd_print_pcm_bits(a->sample_bits, buf, sizeof(buf));
- snd_iprintf(buffer, "sad%d_bits\t\t[0x%x]%s\n",
- i, a->sample_bits, buf);
- }
-
- if (a->max_bitrate)
- snd_iprintf(buffer, "sad%d_max_bitrate\t%d\n",
- i, a->max_bitrate);
-
- if (a->profile)
- snd_iprintf(buffer, "sad%d_profile\t\t%d\n", i, a->profile);
-}
-
-static void hdmi_print_eld_info(struct snd_info_entry *entry,
- struct snd_info_buffer *buffer)
-{
- struct hdmi_eld *e = entry->private_data;
- char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
- int i;
- static char *eld_versoin_names[32] = {
- "reserved",
- "reserved",
- "CEA-861D or below",
- [3 ... 30] = "reserved",
- [31] = "partial"
- };
- 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"
- };
-
- snd_iprintf(buffer, "monitor_name\t\t%s\n", e->monitor_name);
- snd_iprintf(buffer, "connection_type\t\t%s\n",
- eld_connection_type_names[e->conn_type]);
- snd_iprintf(buffer, "eld_version\t\t[0x%x] %s\n", e->eld_ver,
- eld_versoin_names[e->eld_ver]);
- snd_iprintf(buffer, "edid_version\t\t[0x%x] %s\n", e->cea_edid_ver,
- cea_edid_version_names[e->cea_edid_ver]);
- snd_iprintf(buffer, "manufacture_id\t\t0x%x\n", e->manufacture_id);
- snd_iprintf(buffer, "product_id\t\t0x%x\n", e->product_id);
- snd_iprintf(buffer, "port_id\t\t\t0x%llx\n", (long long)e->port_id);
- snd_iprintf(buffer, "support_hdcp\t\t%d\n", e->support_hdcp);
- snd_iprintf(buffer, "support_ai\t\t%d\n", e->support_ai);
- snd_iprintf(buffer, "audio_sync_delay\t%d\n", e->aud_synch_delay);
-
- snd_print_channel_allocation(e->spk_alloc, buf, sizeof(buf));
- snd_iprintf(buffer, "speakers\t\t[0x%x]%s\n", e->spk_alloc, buf);
-
- snd_iprintf(buffer, "sad_count\t\t%d\n", e->sad_count);
-
- for (i = 0; i < e->sad_count; i++)
- hdmi_print_sad_info(i, e->sad + i, buffer);
-}
-
-static void hdmi_write_eld_info(struct snd_info_entry *entry,
- struct snd_info_buffer *buffer)
-{
- struct hdmi_eld *e = entry->private_data;
- char line[64];
- char name[64];
- char *sname;
- long long val;
- int n;
-
- while (!snd_info_get_line(buffer, line, sizeof(line))) {
- if (sscanf(line, "%s %llx", name, &val) != 2)
- continue;
- /*
- * We don't allow modification to these fields:
- * monitor_name manufacture_id product_id
- * eld_version edid_version
- */
- if (!strcmp(name, "connection_type"))
- e->conn_type = val;
- else if (!strcmp(name, "port_id"))
- e->port_id = val;
- else if (!strcmp(name, "support_hdcp"))
- e->support_hdcp = val;
- else if (!strcmp(name, "support_ai"))
- e->support_ai = val;
- else if (!strcmp(name, "audio_sync_delay"))
- e->aud_synch_delay = val;
- else if (!strcmp(name, "speakers"))
- e->spk_alloc = val;
- else if (!strcmp(name, "sad_count"))
- e->sad_count = val;
- else if (!strncmp(name, "sad", 3)) {
- sname = name + 4;
- n = name[3] - '0';
- if (name[4] >= '0' && name[4] <= '9') {
- sname++;
- n = 10 * n + name[4] - '0';
- }
- if (n < 0 || n > 31) /* double the CEA limit */
- continue;
- if (!strcmp(sname, "_coding_type"))
- e->sad[n].format = val;
- else if (!strcmp(sname, "_channels"))
- e->sad[n].channels = val;
- else if (!strcmp(sname, "_rates"))
- e->sad[n].rates = val;
- else if (!strcmp(sname, "_bits"))
- e->sad[n].sample_bits = val;
- else if (!strcmp(sname, "_max_bitrate"))
- e->sad[n].max_bitrate = val;
- else if (!strcmp(sname, "_profile"))
- e->sad[n].profile = val;
- if (n >= e->sad_count)
- e->sad_count = n + 1;
- }
- }
-}
-
-
-int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld)
-{
- char name[32];
- struct snd_info_entry *entry;
- int err;
-
- snprintf(name, sizeof(name), "eld#%d", codec->addr);
- err = snd_card_proc_new(codec->bus->card, name, &entry);
- if (err < 0)
- return err;
-
- snd_info_set_text_ops(entry, eld, hdmi_print_eld_info);
- entry->c.text.write = hdmi_write_eld_info;
- entry->mode |= S_IWUSR;
- eld->proc_entry = entry;
-
- return 0;
-}
-
-void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld)
-{
- if (!codec->bus->shutdown && eld->proc_entry) {
- snd_device_free(codec->bus->card, eld->proc_entry);
- eld->proc_entry = NULL;
- }
-}
-
-#endif /* CONFIG_PROC_FS */
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