3 * patch_intelhdmi.c - Patch for Intel HDMI codecs
5 * Copyright(c) 2008 Intel Corporation. All rights reserved.
8 * Jiang Zhe <zhe.jiang@intel.com>
9 * Wu Fengguang <wfg@linux.intel.com>
12 * Wu Fengguang <wfg@linux.intel.com>
14 * This program is free software; you can redistribute it and/or modify it
15 * under the terms of the GNU General Public License as published by the Free
16 * Software Foundation; either version 2 of the License, or (at your option)
19 * This program is distributed in the hope that it will be useful, but
20 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
21 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 #include <linux/init.h>
30 #include <linux/delay.h>
31 #include <linux/slab.h>
32 #include <sound/core.h>
33 #include <asm/unaligned.h>
34 #include "hda_codec.h"
35 #include "hda_local.h"
36 #include "hda_patch.h"
38 #define CVT_NID 0x02 /* audio converter */
39 #define PIN_NID 0x03 /* HDMI output pin */
41 #define INTEL_HDMI_EVENT_TAG 0x08
44 * CEA Short Audio Descriptor data
48 int format; /* (format == 0) indicates invalid SAD */
50 int sample_bits; /* for LPCM */
51 int max_bitrate; /* for AC3...ATRAC */
52 int profile; /* for WMAPRO */
55 #define ELD_FIXED_BYTES 20
56 #define ELD_MAX_MNL 16
57 #define ELD_MAX_SAD 16
65 int eld_ver; /* (eld_ver == 0) indicates invalid ELD */
67 char monitor_name[ELD_MAX_MNL + 1];
77 struct cea_sad sad[ELD_MAX_SAD];
80 struct intel_hdmi_spec {
81 struct hda_multi_out multiout;
82 struct hda_pcm pcm_rec;
86 static struct hda_verb pinout_enable_verb[] = {
87 {PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
91 static struct hda_verb pinout_disable_verb[] = {
92 {PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x00},
96 static struct hda_verb unsolicited_response_verb[] = {
97 {PIN_NID, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN |
98 INTEL_HDMI_EVENT_TAG},
102 static struct hda_verb def_chan_map[] = {
103 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x00},
104 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x11},
105 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x22},
106 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x33},
107 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x44},
108 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x55},
109 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x66},
110 {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x77},
115 struct hdmi_audio_infoframe {
120 u8 checksum; /* PB0 */
121 u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */
125 u8 LFEPBL01_LSV36_DM_INH7;
126 u8 reserved[5]; /* PB6 - PB10 */
130 * SS1:SS0 index => sample size
132 static int cea_sample_sizes[4] = {
133 0, /* 0: Refer to Stream Header */
134 AC_SUPPCM_BITS_16, /* 1: 16 bits */
135 AC_SUPPCM_BITS_20, /* 2: 20 bits */
136 AC_SUPPCM_BITS_24, /* 3: 24 bits */
140 * SF2:SF1:SF0 index => sampling frequency
142 static int cea_sampling_frequencies[8] = {
143 0, /* 0: Refer to Stream Header */
144 SNDRV_PCM_RATE_32000, /* 1: 32000Hz */
145 SNDRV_PCM_RATE_44100, /* 2: 44100Hz */
146 SNDRV_PCM_RATE_48000, /* 3: 48000Hz */
147 SNDRV_PCM_RATE_88200, /* 4: 88200Hz */
148 SNDRV_PCM_RATE_96000, /* 5: 96000Hz */
149 SNDRV_PCM_RATE_176400, /* 6: 176400Hz */
150 SNDRV_PCM_RATE_192000, /* 7: 192000Hz */
154 ELD_VER_CEA_861D = 2,
155 ELD_VER_PARTIAL = 31,
158 static char *eld_versoin_names[32] = {
163 [4 ... 30] = "reserved",
167 enum cea_edid_versions {
168 CEA_EDID_VER_NONE = 0,
169 CEA_EDID_VER_CEA861 = 1,
170 CEA_EDID_VER_CEA861A = 2,
171 CEA_EDID_VER_CEA861BCD = 3,
172 CEA_EDID_VER_RESERVED = 4,
175 static char *cea_edid_version_names[8] = {
176 "no CEA EDID Timing Extension block present",
181 [5 ... 7] = "reserved"
185 * CEA Speaker Allocation data block bits
187 #define CEA_SA_FLR (0 << 0)
188 #define CEA_SA_LFE (1 << 1)
189 #define CEA_SA_FC (1 << 2)
190 #define CEA_SA_RLR (1 << 3)
191 #define CEA_SA_RC (1 << 4)
192 #define CEA_SA_FLRC (1 << 5)
193 #define CEA_SA_RLRC (1 << 6)
194 /* the following are not defined in ELD yet */
195 #define CEA_SA_FLRW (1 << 7)
196 #define CEA_SA_FLRH (1 << 8)
197 #define CEA_SA_TC (1 << 9)
198 #define CEA_SA_FCH (1 << 10)
200 static char *cea_speaker_allocation_names[] = {
214 static char *eld_connection_type_names[4] = {
221 enum cea_audio_coding_types {
222 AUDIO_CODING_TYPE_REF_STREAM_HEADER = 0,
223 AUDIO_CODING_TYPE_LPCM = 1,
224 AUDIO_CODING_TYPE_AC3 = 2,
225 AUDIO_CODING_TYPE_MPEG1 = 3,
226 AUDIO_CODING_TYPE_MP3 = 4,
227 AUDIO_CODING_TYPE_MPEG2 = 5,
228 AUDIO_CODING_TYPE_AACLC = 6,
229 AUDIO_CODING_TYPE_DTS = 7,
230 AUDIO_CODING_TYPE_ATRAC = 8,
231 AUDIO_CODING_TYPE_SACD = 9,
232 AUDIO_CODING_TYPE_EAC3 = 10,
233 AUDIO_CODING_TYPE_DTS_HD = 11,
234 AUDIO_CODING_TYPE_MLP = 12,
235 AUDIO_CODING_TYPE_DST = 13,
236 AUDIO_CODING_TYPE_WMAPRO = 14,
237 AUDIO_CODING_TYPE_REF_CXT = 15,
238 /* also include valid xtypes below */
239 AUDIO_CODING_TYPE_HE_AAC = 15,
240 AUDIO_CODING_TYPE_HE_AAC2 = 16,
241 AUDIO_CODING_TYPE_MPEG_SURROUND = 17,
244 enum cea_audio_coding_xtypes {
245 AUDIO_CODING_XTYPE_HE_REF_CT = 0,
246 AUDIO_CODING_XTYPE_HE_AAC = 1,
247 AUDIO_CODING_XTYPE_HE_AAC2 = 2,
248 AUDIO_CODING_XTYPE_MPEG_SURROUND = 3,
249 AUDIO_CODING_XTYPE_FIRST_RESERVED = 4,
252 static char *cea_audio_coding_type_names[] = {
262 /* 9 */ "DSD(1-bit audio)",
263 /* 10 */ "Dolby Digital Plus(E-AC-3/DD+)",
265 /* 12 */ "Dolby TrueHD(MLP)",
270 /* 17 */ "MPEG Surround",
278 static int hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid)
280 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_SIZE,
285 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t nid,
286 int *packet_index, int *byte_index)
290 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_INDEX, 0);
292 *packet_index = val >> 5;
293 *byte_index = val & 0x1f;
297 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t nid,
298 int packet_index, int byte_index)
302 val = (packet_index << 5) | (byte_index & 0x1f);
304 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
307 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t nid,
310 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
313 static void hdmi_enable_output(struct hda_codec *codec)
315 /* Enable pin out and unmute */
316 snd_hda_sequence_write(codec, pinout_enable_verb);
317 if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
318 snd_hda_codec_write(codec, PIN_NID, 0,
319 AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
321 /* Enable Audio InfoFrame Transmission */
322 hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
323 snd_hda_codec_write(codec, PIN_NID, 0, AC_VERB_SET_HDMI_DIP_XMIT,
327 static void hdmi_disable_output(struct hda_codec *codec)
329 snd_hda_sequence_write(codec, pinout_disable_verb);
330 if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
331 snd_hda_codec_write(codec, PIN_NID, 0,
332 AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
335 * FIXME: noises may arise when playing music after reloading the
336 * kernel module, until the next X restart or monitor repower.
340 static int hdmi_get_channel_count(struct hda_codec *codec)
342 return 1 + snd_hda_codec_read(codec, CVT_NID, 0,
343 AC_VERB_GET_CVT_CHAN_COUNT, 0);
346 static void hdmi_set_channel_count(struct hda_codec *codec, int chs)
348 snd_hda_codec_write(codec, CVT_NID, 0,
349 AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
351 if (chs != hdmi_get_channel_count(codec))
352 snd_printd(KERN_INFO "Channel count expect=%d, real=%d\n",
353 chs, hdmi_get_channel_count(codec));
356 static void hdmi_debug_slot_mapping(struct hda_codec *codec)
358 #ifdef CONFIG_SND_DEBUG_VERBOSE
362 for (i = 0; i < 8; i++) {
363 slot = snd_hda_codec_read(codec, CVT_NID, 0,
364 AC_VERB_GET_HDMI_CHAN_SLOT, i);
365 printk(KERN_DEBUG "ASP channel %d => slot %d\n",
366 slot >> 4, slot & 0x7);
371 static void hdmi_setup_channel_mapping(struct hda_codec *codec)
373 snd_hda_sequence_write(codec, def_chan_map);
374 hdmi_debug_slot_mapping(codec);
379 * ELD(EDID Like Data) routines
382 static int hdmi_present_sense(struct hda_codec *codec, hda_nid_t nid)
384 return snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_PIN_SENSE, 0);
387 static void hdmi_debug_present_sense(struct hda_codec *codec)
389 #ifdef CONFIG_SND_DEBUG_VERBOSE
393 present = hdmi_present_sense(codec, PIN_NID);
394 eldv = (present & AC_PINSENSE_ELDV);
395 present = (present & AC_PINSENSE_PRESENCE);
397 printk(KERN_INFO "pinp = %d, eldv = %d\n", !!present, !!eldv);
401 static unsigned char hdmi_get_eld_byte(struct hda_codec *codec, int byte_index)
405 val = snd_hda_codec_read(codec, PIN_NID, 0,
406 AC_VERB_GET_HDMI_ELDD, byte_index);
409 printk(KERN_INFO "ELD data byte %d: 0x%x\n", byte_index, val);
412 if ((val & AC_ELDD_ELD_VALID) == 0) {
413 snd_printd(KERN_INFO "Invalid ELD data byte %d\n",
418 return val & AC_ELDD_ELD_DATA;
421 static inline unsigned char grab_bits(const unsigned char *buf,
422 int byte, int lowbit, int bits)
428 return (buf[byte] >> lowbit) & ((1 << bits) - 1);
431 static void hdmi_update_short_audio_desc(struct cea_sad *a,
432 const unsigned char *buf)
437 val = grab_bits(buf, 1, 0, 7);
439 for (i = 0; i < 7; i++)
441 a->rates |= cea_sampling_frequencies[i + 1];
443 a->channels = grab_bits(buf, 0, 0, 3);
446 a->format = grab_bits(buf, 0, 3, 4);
448 case AUDIO_CODING_TYPE_REF_STREAM_HEADER:
450 "audio coding type 0 not expected in ELD\n");
453 case AUDIO_CODING_TYPE_LPCM:
454 val = grab_bits(buf, 2, 0, 3);
456 for (i = 0; i < 3; i++)
458 a->sample_bits |= cea_sample_sizes[i + 1];
461 case AUDIO_CODING_TYPE_AC3:
462 case AUDIO_CODING_TYPE_MPEG1:
463 case AUDIO_CODING_TYPE_MP3:
464 case AUDIO_CODING_TYPE_MPEG2:
465 case AUDIO_CODING_TYPE_AACLC:
466 case AUDIO_CODING_TYPE_DTS:
467 case AUDIO_CODING_TYPE_ATRAC:
468 a->max_bitrate = grab_bits(buf, 2, 0, 8);
469 a->max_bitrate *= 8000;
472 case AUDIO_CODING_TYPE_SACD:
475 case AUDIO_CODING_TYPE_EAC3:
478 case AUDIO_CODING_TYPE_DTS_HD:
481 case AUDIO_CODING_TYPE_MLP:
484 case AUDIO_CODING_TYPE_DST:
487 case AUDIO_CODING_TYPE_WMAPRO:
488 a->profile = grab_bits(buf, 2, 0, 3);
491 case AUDIO_CODING_TYPE_REF_CXT:
492 a->format = grab_bits(buf, 2, 3, 5);
493 if (a->format == AUDIO_CODING_XTYPE_HE_REF_CT ||
494 a->format >= AUDIO_CODING_XTYPE_FIRST_RESERVED) {
496 "audio coding xtype %d not expected in ELD\n",
500 a->format += AUDIO_CODING_TYPE_HE_AAC -
501 AUDIO_CODING_XTYPE_HE_AAC;
506 static int hdmi_update_sink_eld(struct hda_codec *codec,
507 const unsigned char *buf, int size)
509 struct intel_hdmi_spec *spec = codec->spec;
510 struct sink_eld *e = &spec->sink;
514 e->eld_ver = grab_bits(buf, 0, 3, 5);
515 if (e->eld_ver != ELD_VER_CEA_861D &&
516 e->eld_ver != ELD_VER_PARTIAL) {
517 snd_printd(KERN_INFO "Unknown ELD version %d\n", e->eld_ver);
522 e->baseline_len = grab_bits(buf, 2, 0, 8);
523 mnl = grab_bits(buf, 4, 0, 5);
524 e->cea_edid_ver = grab_bits(buf, 4, 5, 3);
526 e->support_hdcp = grab_bits(buf, 5, 0, 1);
527 e->support_ai = grab_bits(buf, 5, 1, 1);
528 e->conn_type = grab_bits(buf, 5, 2, 2);
529 e->sad_count = grab_bits(buf, 5, 4, 4);
531 e->aud_synch_delay = grab_bits(buf, 6, 0, 8);
532 e->spk_alloc = grab_bits(buf, 7, 0, 7);
534 e->port_id = get_unaligned_le64(buf + 8);
536 /* not specified, but the spec's tendency is little endian */
537 e->manufacture_id = get_unaligned_le16(buf + 16);
538 e->product_id = get_unaligned_le16(buf + 18);
540 if (mnl > ELD_MAX_MNL) {
541 snd_printd(KERN_INFO "MNL is reserved value %d\n", mnl);
543 } else if (ELD_FIXED_BYTES + mnl > size) {
544 snd_printd(KERN_INFO "out of range MNL %d\n", mnl);
547 strlcpy(e->monitor_name, buf + ELD_FIXED_BYTES, mnl);
549 for (i = 0; i < e->sad_count; i++) {
550 if (ELD_FIXED_BYTES + mnl + 3 * (i + 1) > size) {
551 snd_printd(KERN_INFO "out of range SAD %d\n", i);
554 hdmi_update_short_audio_desc(e->sad + i,
555 buf + ELD_FIXED_BYTES + mnl + 3 * i);
565 static int hdmi_get_eld(struct hda_codec *codec)
572 i = hdmi_present_sense(codec, PIN_NID) & AC_PINSENSE_ELDV;
576 size = hdmi_get_eld_size(codec, PIN_NID);
578 /* wfg: workaround for ASUS P5E-VM HDMI board */
579 snd_printd(KERN_INFO "ELD buf size is 0, force 128\n");
582 if (size < ELD_FIXED_BYTES || size > PAGE_SIZE) {
583 snd_printd(KERN_INFO "Invalid ELD buf size %d\n", size);
587 buf = kmalloc(size, GFP_KERNEL);
591 for (i = 0; i < size; i++)
592 buf[i] = hdmi_get_eld_byte(codec, i);
594 ret = hdmi_update_sink_eld(codec, buf, size);
600 static void hdmi_show_short_audio_desc(struct cea_sad *a)
602 printk(KERN_INFO "coding type: %s\n",
603 cea_audio_coding_type_names[a->format]);
604 printk(KERN_INFO "channels: %d\n", a->channels);
605 printk(KERN_INFO "sampling frequencies: 0x%x\n", a->rates);
607 if (a->format == AUDIO_CODING_TYPE_LPCM)
608 printk(KERN_INFO "sample bits: 0x%x\n", a->sample_bits);
611 printk(KERN_INFO "max bitrate: %d HZ\n", a->max_bitrate);
614 printk(KERN_INFO "profile: %d\n", a->profile);
617 static void hdmi_show_eld(struct hda_codec *codec)
621 struct intel_hdmi_spec *spec = codec->spec;
622 struct sink_eld *e = &spec->sink;
625 printk(KERN_INFO "ELD buffer size is %d\n", e->eld_size);
626 printk(KERN_INFO "ELD baseline len is %d*4\n", e->baseline_len);
627 printk(KERN_INFO "vendor block len is %d\n",
628 e->eld_size - e->baseline_len * 4 - 4);
629 printk(KERN_INFO "ELD version is %s\n",
630 eld_versoin_names[e->eld_ver]);
631 printk(KERN_INFO "CEA EDID version is %s\n",
632 cea_edid_version_names[e->cea_edid_ver]);
633 printk(KERN_INFO "manufacture id is 0x%x\n", e->manufacture_id);
634 printk(KERN_INFO "product id is 0x%x\n", e->product_id);
635 printk(KERN_INFO "port id is 0x%llx\n", (long long)e->port_id);
636 printk(KERN_INFO "HDCP support is %d\n", e->support_hdcp);
637 printk(KERN_INFO "AI support is %d\n", e->support_ai);
638 printk(KERN_INFO "SAD count is %d\n", e->sad_count);
639 printk(KERN_INFO "audio sync delay is %x\n", e->aud_synch_delay);
640 printk(KERN_INFO "connection type is %s\n",
641 eld_connection_type_names[e->conn_type]);
642 printk(KERN_INFO "monitor name is %s\n", e->monitor_name);
645 for (i = 0; i < ARRAY_SIZE(cea_speaker_allocation_names); i++) {
646 if (e->spk_alloc & (1 << i))
647 j += snprintf(buf + j, sizeof(buf) - j, " %s",
648 cea_speaker_allocation_names[i]);
650 buf[j] = '\0'; /* necessary when j == 0 */
651 printk(KERN_INFO "speaker allocations: (0x%x)%s\n", e->spk_alloc, buf);
653 for (i = 0; i < e->sad_count; i++)
654 hdmi_show_short_audio_desc(e->sad + i);
658 * Be careful, ELD buf could be totally rubbish!
660 static void hdmi_parse_eld(struct hda_codec *codec)
662 hdmi_debug_present_sense(codec);
664 if (!hdmi_get_eld(codec))
665 hdmi_show_eld(codec);
670 * Audio Infoframe routines
673 static void hdmi_debug_dip_size(struct hda_codec *codec)
675 #ifdef CONFIG_SND_DEBUG_VERBOSE
679 size = hdmi_get_eld_size(codec, PIN_NID);
680 printk(KERN_DEBUG "ELD buf size is %d\n", size);
682 for (i = 0; i < 8; i++) {
683 size = snd_hda_codec_read(codec, PIN_NID, 0,
684 AC_VERB_GET_HDMI_DIP_SIZE, i);
685 printk(KERN_DEBUG "DIP GP[%d] buf size is %d\n", i, size);
690 static void hdmi_clear_dip_buffers(struct hda_codec *codec)
696 for (i = 0; i < 8; i++) {
697 size = snd_hda_codec_read(codec, PIN_NID, 0,
698 AC_VERB_GET_HDMI_DIP_SIZE, i);
702 hdmi_set_dip_index(codec, PIN_NID, i, 0x0);
703 for (j = 1; j < 1000; j++) {
704 hdmi_write_dip_byte(codec, PIN_NID, 0x0);
705 hdmi_get_dip_index(codec, PIN_NID, &pi, &bi);
707 snd_printd(KERN_INFO "dip index %d: %d != %d\n",
709 if (bi == 0) /* byte index wrapped around */
713 "DIP GP[%d] buf reported size=%d, written=%d\n",
719 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
720 struct snd_pcm_substream *substream)
722 struct hdmi_audio_infoframe audio_infoframe = {
726 .CC02_CT47 = substream->runtime->channels - 1,
728 u8 *params = (u8 *)&audio_infoframe;
731 hdmi_debug_dip_size(codec);
732 hdmi_clear_dip_buffers(codec); /* be paranoid */
734 hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
735 for (i = 0; i < sizeof(audio_infoframe); i++)
736 hdmi_write_dip_byte(codec, PIN_NID, params[i]);
744 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
746 int pind = !!(res & AC_UNSOL_RES_PD);
747 int eldv = !!(res & AC_UNSOL_RES_ELDV);
749 printk(KERN_INFO "HDMI intrinsic event: PD=%d ELDV=%d\n", pind, eldv);
752 hdmi_parse_eld(codec);
753 /* TODO: do real things about ELD */
757 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
759 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
760 int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
761 int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
763 printk(KERN_INFO "HDMI non-intrinsic event: "
764 "SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
777 static void intel_hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
779 int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
780 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
782 if (tag != INTEL_HDMI_EVENT_TAG) {
784 "Unexpected HDMI unsolicited event tag 0x%x\n",
790 hdmi_intrinsic_event(codec, res);
792 hdmi_non_intrinsic_event(codec, res);
799 static int intel_hdmi_playback_pcm_open(struct hda_pcm_stream *hinfo,
800 struct hda_codec *codec,
801 struct snd_pcm_substream *substream)
803 struct intel_hdmi_spec *spec = codec->spec;
805 return snd_hda_multi_out_dig_open(codec, &spec->multiout);
808 static int intel_hdmi_playback_pcm_close(struct hda_pcm_stream *hinfo,
809 struct hda_codec *codec,
810 struct snd_pcm_substream *substream)
812 struct intel_hdmi_spec *spec = codec->spec;
814 hdmi_disable_output(codec);
816 return snd_hda_multi_out_dig_close(codec, &spec->multiout);
819 static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
820 struct hda_codec *codec,
821 unsigned int stream_tag,
823 struct snd_pcm_substream *substream)
825 struct intel_hdmi_spec *spec = codec->spec;
827 snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
830 hdmi_set_channel_count(codec, substream->runtime->channels);
832 /* wfg: channel mapping not supported by DEVCTG */
833 hdmi_setup_channel_mapping(codec);
835 hdmi_setup_audio_infoframe(codec, substream);
837 hdmi_enable_output(codec);
842 static struct hda_pcm_stream intel_hdmi_pcm_playback = {
846 .nid = CVT_NID, /* NID to query formats and rates and setup streams */
848 .open = intel_hdmi_playback_pcm_open,
849 .close = intel_hdmi_playback_pcm_close,
850 .prepare = intel_hdmi_playback_pcm_prepare
854 static int intel_hdmi_build_pcms(struct hda_codec *codec)
856 struct intel_hdmi_spec *spec = codec->spec;
857 struct hda_pcm *info = &spec->pcm_rec;
860 codec->pcm_info = info;
862 info->name = "INTEL HDMI";
863 info->pcm_type = HDA_PCM_TYPE_HDMI;
864 info->stream[SNDRV_PCM_STREAM_PLAYBACK] = intel_hdmi_pcm_playback;
869 static int intel_hdmi_build_controls(struct hda_codec *codec)
871 struct intel_hdmi_spec *spec = codec->spec;
874 err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
881 static int intel_hdmi_init(struct hda_codec *codec)
883 /* disable audio output as early as possible */
884 hdmi_disable_output(codec);
886 snd_hda_sequence_write(codec, unsolicited_response_verb);
891 static void intel_hdmi_free(struct hda_codec *codec)
896 static struct hda_codec_ops intel_hdmi_patch_ops = {
897 .init = intel_hdmi_init,
898 .free = intel_hdmi_free,
899 .build_pcms = intel_hdmi_build_pcms,
900 .build_controls = intel_hdmi_build_controls,
901 .unsol_event = intel_hdmi_unsol_event,
904 static int patch_intel_hdmi(struct hda_codec *codec)
906 struct intel_hdmi_spec *spec;
908 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
912 spec->multiout.num_dacs = 0; /* no analog */
913 spec->multiout.max_channels = 8;
914 spec->multiout.dig_out_nid = CVT_NID;
917 codec->patch_ops = intel_hdmi_patch_ops;
922 struct hda_codec_preset snd_hda_preset_intelhdmi[] = {
923 { .id = 0x808629fb, .name = "INTEL G45 DEVCL", .patch = patch_intel_hdmi },
924 { .id = 0x80862801, .name = "INTEL G45 DEVBLC", .patch = patch_intel_hdmi },
925 { .id = 0x80862802, .name = "INTEL G45 DEVCTG", .patch = patch_intel_hdmi },
926 { .id = 0x80862803, .name = "INTEL G45 DEVELK", .patch = patch_intel_hdmi },