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mm-only debug patch...
[mmotm.git] / sound / pci / hda / patch_intelhdmi.c
blob01a18ed475ace8730a86e3a3ff3ca664a4acfcb7
1 /*
2 *
3 * patch_intelhdmi.c - Patch for Intel HDMI codecs
4 *
5 * Copyright(c) 2008 Intel Corporation. All rights reserved.
6 *
7 * Authors:
8 * Jiang Zhe <zhe.jiang@intel.com>
9 * Wu Fengguang <wfg@linux.intel.com>
10 *
11 * Maintained by:
12 * Wu Fengguang <wfg@linux.intel.com>
13 *
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)
17 * any later version.
18 *
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
22 * for more details.
23 *
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.
27 */
28
29 #include <linux/init.h>
30 #include <linux/delay.h>
31 #include <linux/slab.h>
32 #include <sound/core.h>
33 #include "hda_codec.h"
34 #include "hda_local.h"
35
36 static hda_nid_t cvt_nid; /* audio converter */
37 static hda_nid_t pin_nid; /* HDMI output pin */
38
39 #define INTEL_HDMI_EVENT_TAG 0x08
40
41 struct intel_hdmi_spec {
42 struct hda_multi_out multiout;
43 struct hda_pcm pcm_rec;
44 struct hdmi_eld sink_eld;
45 };
46
47 struct hdmi_audio_infoframe {
48 u8 type; /* 0x84 */
49 u8 ver; /* 0x01 */
50 u8 len; /* 0x0a */
51
52 u8 checksum; /* PB0 */
53 u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */
54 u8 SS01_SF24;
55 u8 CXT04;
56 u8 CA;
57 u8 LFEPBL01_LSV36_DM_INH7;
58 u8 reserved[5]; /* PB6 - PB10 */
59 };
60
61 /*
62 * CEA speaker placement:
63 *
64 * FLH FCH FRH
65 * FLW FL FLC FC FRC FR FRW
66 *
67 * LFE
68 * TC
69 *
70 * RL RLC RC RRC RR
71 *
72 * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
73 * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
74 */
75 enum cea_speaker_placement {
76 FL = (1 << 0), /* Front Left */
77 FC = (1 << 1), /* Front Center */
78 FR = (1 << 2), /* Front Right */
79 FLC = (1 << 3), /* Front Left Center */
80 FRC = (1 << 4), /* Front Right Center */
81 RL = (1 << 5), /* Rear Left */
82 RC = (1 << 6), /* Rear Center */
83 RR = (1 << 7), /* Rear Right */
84 RLC = (1 << 8), /* Rear Left Center */
85 RRC = (1 << 9), /* Rear Right Center */
86 LFE = (1 << 10), /* Low Frequency Effect */
87 FLW = (1 << 11), /* Front Left Wide */
88 FRW = (1 << 12), /* Front Right Wide */
89 FLH = (1 << 13), /* Front Left High */
90 FCH = (1 << 14), /* Front Center High */
91 FRH = (1 << 15), /* Front Right High */
92 TC = (1 << 16), /* Top Center */
93 };
94
95 /*
96 * ELD SA bits in the CEA Speaker Allocation data block
97 */
98 static int eld_speaker_allocation_bits[] = {
99 [0] = FL | FR,
100 [1] = LFE,
101 [2] = FC,
102 [3] = RL | RR,
103 [4] = RC,
104 [5] = FLC | FRC,
105 [6] = RLC | RRC,
106 /* the following are not defined in ELD yet */
107 [7] = FLW | FRW,
108 [8] = FLH | FRH,
109 [9] = TC,
110 [10] = FCH,
111 };
112
113 struct cea_channel_speaker_allocation {
114 int ca_index;
115 int speakers[8];
116
117 /* derived values, just for convenience */
118 int channels;
119 int spk_mask;
120 };
121
122 /*
123 * This is an ordered list!
124 *
125 * The preceding ones have better chances to be selected by
126 * hdmi_setup_channel_allocation().
127 */
128 static struct cea_channel_speaker_allocation channel_allocations[] = {
129 /* channel: 8 7 6 5 4 3 2 1 */
130 { .ca_index = 0x00, .speakers = { 0, 0, 0, 0, 0, 0, FR, FL } },
131 /* 2.1 */
132 { .ca_index = 0x01, .speakers = { 0, 0, 0, 0, 0, LFE, FR, FL } },
133 /* Dolby Surround */
134 { .ca_index = 0x02, .speakers = { 0, 0, 0, 0, FC, 0, FR, FL } },
135 { .ca_index = 0x03, .speakers = { 0, 0, 0, 0, FC, LFE, FR, FL } },
136 { .ca_index = 0x04, .speakers = { 0, 0, 0, RC, 0, 0, FR, FL } },
137 { .ca_index = 0x05, .speakers = { 0, 0, 0, RC, 0, LFE, FR, FL } },
138 { .ca_index = 0x06, .speakers = { 0, 0, 0, RC, FC, 0, FR, FL } },
139 { .ca_index = 0x07, .speakers = { 0, 0, 0, RC, FC, LFE, FR, FL } },
140 { .ca_index = 0x08, .speakers = { 0, 0, RR, RL, 0, 0, FR, FL } },
141 { .ca_index = 0x09, .speakers = { 0, 0, RR, RL, 0, LFE, FR, FL } },
142 { .ca_index = 0x0a, .speakers = { 0, 0, RR, RL, FC, 0, FR, FL } },
143 /* 5.1 */
144 { .ca_index = 0x0b, .speakers = { 0, 0, RR, RL, FC, LFE, FR, FL } },
145 { .ca_index = 0x0c, .speakers = { 0, RC, RR, RL, 0, 0, FR, FL } },
146 { .ca_index = 0x0d, .speakers = { 0, RC, RR, RL, 0, LFE, FR, FL } },
147 { .ca_index = 0x0e, .speakers = { 0, RC, RR, RL, FC, 0, FR, FL } },
148 /* 6.1 */
149 { .ca_index = 0x0f, .speakers = { 0, RC, RR, RL, FC, LFE, FR, FL } },
150 { .ca_index = 0x10, .speakers = { RRC, RLC, RR, RL, 0, 0, FR, FL } },
151 { .ca_index = 0x11, .speakers = { RRC, RLC, RR, RL, 0, LFE, FR, FL } },
152 { .ca_index = 0x12, .speakers = { RRC, RLC, RR, RL, FC, 0, FR, FL } },
153 /* 7.1 */
154 { .ca_index = 0x13, .speakers = { RRC, RLC, RR, RL, FC, LFE, FR, FL } },
155 { .ca_index = 0x14, .speakers = { FRC, FLC, 0, 0, 0, 0, FR, FL } },
156 { .ca_index = 0x15, .speakers = { FRC, FLC, 0, 0, 0, LFE, FR, FL } },
157 { .ca_index = 0x16, .speakers = { FRC, FLC, 0, 0, FC, 0, FR, FL } },
158 { .ca_index = 0x17, .speakers = { FRC, FLC, 0, 0, FC, LFE, FR, FL } },
159 { .ca_index = 0x18, .speakers = { FRC, FLC, 0, RC, 0, 0, FR, FL } },
160 { .ca_index = 0x19, .speakers = { FRC, FLC, 0, RC, 0, LFE, FR, FL } },
161 { .ca_index = 0x1a, .speakers = { FRC, FLC, 0, RC, FC, 0, FR, FL } },
162 { .ca_index = 0x1b, .speakers = { FRC, FLC, 0, RC, FC, LFE, FR, FL } },
163 { .ca_index = 0x1c, .speakers = { FRC, FLC, RR, RL, 0, 0, FR, FL } },
164 { .ca_index = 0x1d, .speakers = { FRC, FLC, RR, RL, 0, LFE, FR, FL } },
165 { .ca_index = 0x1e, .speakers = { FRC, FLC, RR, RL, FC, 0, FR, FL } },
166 { .ca_index = 0x1f, .speakers = { FRC, FLC, RR, RL, FC, LFE, FR, FL } },
167 { .ca_index = 0x20, .speakers = { 0, FCH, RR, RL, FC, 0, FR, FL } },
168 { .ca_index = 0x21, .speakers = { 0, FCH, RR, RL, FC, LFE, FR, FL } },
169 { .ca_index = 0x22, .speakers = { TC, 0, RR, RL, FC, 0, FR, FL } },
170 { .ca_index = 0x23, .speakers = { TC, 0, RR, RL, FC, LFE, FR, FL } },
171 { .ca_index = 0x24, .speakers = { FRH, FLH, RR, RL, 0, 0, FR, FL } },
172 { .ca_index = 0x25, .speakers = { FRH, FLH, RR, RL, 0, LFE, FR, FL } },
173 { .ca_index = 0x26, .speakers = { FRW, FLW, RR, RL, 0, 0, FR, FL } },
174 { .ca_index = 0x27, .speakers = { FRW, FLW, RR, RL, 0, LFE, FR, FL } },
175 { .ca_index = 0x28, .speakers = { TC, RC, RR, RL, FC, 0, FR, FL } },
176 { .ca_index = 0x29, .speakers = { TC, RC, RR, RL, FC, LFE, FR, FL } },
177 { .ca_index = 0x2a, .speakers = { FCH, RC, RR, RL, FC, 0, FR, FL } },
178 { .ca_index = 0x2b, .speakers = { FCH, RC, RR, RL, FC, LFE, FR, FL } },
179 { .ca_index = 0x2c, .speakers = { TC, FCH, RR, RL, FC, 0, FR, FL } },
180 { .ca_index = 0x2d, .speakers = { TC, FCH, RR, RL, FC, LFE, FR, FL } },
181 { .ca_index = 0x2e, .speakers = { FRH, FLH, RR, RL, FC, 0, FR, FL } },
182 { .ca_index = 0x2f, .speakers = { FRH, FLH, RR, RL, FC, LFE, FR, FL } },
183 { .ca_index = 0x30, .speakers = { FRW, FLW, RR, RL, FC, 0, FR, FL } },
184 { .ca_index = 0x31, .speakers = { FRW, FLW, RR, RL, FC, LFE, FR, FL } },
185 };
186
187 /*
188 * HDMI routines
189 */
190
191 #ifdef BE_PARANOID
192 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t nid,
193 int *packet_index, int *byte_index)
194 {
195 int val;
196
197 val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_INDEX, 0);
198
199 *packet_index = val >> 5;
200 *byte_index = val & 0x1f;
201 }
202 #endif
203
204 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t nid,
205 int packet_index, int byte_index)
206 {
207 int val;
208
209 val = (packet_index << 5) | (byte_index & 0x1f);
210
211 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
212 }
213
214 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t nid,
215 unsigned char val)
216 {
217 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
218 }
219
220 static void hdmi_enable_output(struct hda_codec *codec)
221 {
222 /* Unmute */
223 if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
224 snd_hda_codec_write(codec, pin_nid, 0,
225 AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
226 /* Enable pin out */
227 snd_hda_codec_write(codec, pin_nid, 0,
228 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
229 }
230
231 /*
232 * Enable Audio InfoFrame Transmission
233 */
234 static void hdmi_start_infoframe_trans(struct hda_codec *codec)
235 {
236 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
237 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
238 AC_DIPXMIT_BEST);
239 }
240
241 /*
242 * Disable Audio InfoFrame Transmission
243 */
244 static void hdmi_stop_infoframe_trans(struct hda_codec *codec)
245 {
246 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
247 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
248 AC_DIPXMIT_DISABLE);
249 }
250
251 static int hdmi_get_channel_count(struct hda_codec *codec)
252 {
253 return 1 + snd_hda_codec_read(codec, cvt_nid, 0,
254 AC_VERB_GET_CVT_CHAN_COUNT, 0);
255 }
256
257 static void hdmi_set_channel_count(struct hda_codec *codec, int chs)
258 {
259 snd_hda_codec_write(codec, cvt_nid, 0,
260 AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
261
262 if (chs != hdmi_get_channel_count(codec))
263 snd_printd(KERN_INFO "HDMI channel count: expect %d, get %d\n",
264 chs, hdmi_get_channel_count(codec));
265 }
266
267 static void hdmi_debug_channel_mapping(struct hda_codec *codec)
268 {
269 #ifdef CONFIG_SND_DEBUG_VERBOSE
270 int i;
271 int slot;
272
273 for (i = 0; i < 8; i++) {
274 slot = snd_hda_codec_read(codec, cvt_nid, 0,
275 AC_VERB_GET_HDMI_CHAN_SLOT, i);
276 printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
277 slot >> 4, slot & 0x7);
278 }
279 #endif
280 }
281
282 static void hdmi_parse_eld(struct hda_codec *codec)
283 {
284 struct intel_hdmi_spec *spec = codec->spec;
285 struct hdmi_eld *eld = &spec->sink_eld;
286
287 if (!snd_hdmi_get_eld(eld, codec, pin_nid))
288 snd_hdmi_show_eld(eld);
289 }
290
291
292 /*
293 * Audio InfoFrame routines
294 */
295
296 static void hdmi_debug_dip_size(struct hda_codec *codec)
297 {
298 #ifdef CONFIG_SND_DEBUG_VERBOSE
299 int i;
300 int size;
301
302 size = snd_hdmi_get_eld_size(codec, pin_nid);
303 printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size);
304
305 for (i = 0; i < 8; i++) {
306 size = snd_hda_codec_read(codec, pin_nid, 0,
307 AC_VERB_GET_HDMI_DIP_SIZE, i);
308 printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size);
309 }
310 #endif
311 }
312
313 static void hdmi_clear_dip_buffers(struct hda_codec *codec)
314 {
315 #ifdef BE_PARANOID
316 int i, j;
317 int size;
318 int pi, bi;
319 for (i = 0; i < 8; i++) {
320 size = snd_hda_codec_read(codec, pin_nid, 0,
321 AC_VERB_GET_HDMI_DIP_SIZE, i);
322 if (size == 0)
323 continue;
324
325 hdmi_set_dip_index(codec, pin_nid, i, 0x0);
326 for (j = 1; j < 1000; j++) {
327 hdmi_write_dip_byte(codec, pin_nid, 0x0);
328 hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
329 if (pi != i)
330 snd_printd(KERN_INFO "dip index %d: %d != %d\n",
331 bi, pi, i);
332 if (bi == 0) /* byte index wrapped around */
333 break;
334 }
335 snd_printd(KERN_INFO
336 "HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
337 i, size, j);
338 }
339 #endif
340 }
341
342 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
343 struct hdmi_audio_infoframe *ai)
344 {
345 u8 *params = (u8 *)ai;
346 u8 sum = 0;
347 int i;
348
349 hdmi_debug_dip_size(codec);
350 hdmi_clear_dip_buffers(codec); /* be paranoid */
351
352 for (i = 0; i < sizeof(ai); i++)
353 sum += params[i];
354 ai->checksum = - sum;
355
356 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
357 for (i = 0; i < sizeof(ai); i++)
358 hdmi_write_dip_byte(codec, pin_nid, params[i]);
359 }
360
361 /*
362 * Compute derived values in channel_allocations[].
363 */
364 static void init_channel_allocations(void)
365 {
366 int i, j;
367 struct cea_channel_speaker_allocation *p;
368
369 for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
370 p = channel_allocations + i;
371 p->channels = 0;
372 p->spk_mask = 0;
373 for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
374 if (p->speakers[j]) {
375 p->channels++;
376 p->spk_mask |= p->speakers[j];
377 }
378 }
379 }
380
381 /*
382 * The transformation takes two steps:
383 *
384 * eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
385 * spk_mask => (channel_allocations[]) => ai->CA
386 *
387 * TODO: it could select the wrong CA from multiple candidates.
388 */
389 static int hdmi_setup_channel_allocation(struct hda_codec *codec,
390 struct hdmi_audio_infoframe *ai)
391 {
392 struct intel_hdmi_spec *spec = codec->spec;
393 struct hdmi_eld *eld = &spec->sink_eld;
394 int i;
395 int spk_mask = 0;
396 int channels = 1 + (ai->CC02_CT47 & 0x7);
397 char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
398
399 /*
400 * CA defaults to 0 for basic stereo audio
401 */
402 if (channels <= 2)
403 return 0;
404
405 /*
406 * HDMI sink's ELD info cannot always be retrieved for now, e.g.
407 * in console or for audio devices. Assume the highest speakers
408 * configuration, to _not_ prohibit multi-channel audio playback.
409 */
410 if (!eld->spk_alloc)
411 eld->spk_alloc = 0xffff;
412
413 /*
414 * expand ELD's speaker allocation mask
415 *
416 * ELD tells the speaker mask in a compact(paired) form,
417 * expand ELD's notions to match the ones used by Audio InfoFrame.
418 */
419 for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
420 if (eld->spk_alloc & (1 << i))
421 spk_mask |= eld_speaker_allocation_bits[i];
422 }
423
424 /* search for the first working match in the CA table */
425 for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
426 if (channels == channel_allocations[i].channels &&
427 (spk_mask & channel_allocations[i].spk_mask) ==
428 channel_allocations[i].spk_mask) {
429 ai->CA = channel_allocations[i].ca_index;
430 break;
431 }
432 }
433
434 snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
435 snd_printdd(KERN_INFO
436 "HDMI: select CA 0x%x for %d-channel allocation: %s\n",
437 ai->CA, channels, buf);
438
439 return ai->CA;
440 }
441
442 static void hdmi_setup_channel_mapping(struct hda_codec *codec,
443 struct hdmi_audio_infoframe *ai)
444 {
445 int i;
446
447 if (!ai->CA)
448 return;
449
450 /*
451 * TODO: adjust channel mapping if necessary
452 * ALSA sequence is front/surr/clfe/side?
453 */
454
455 for (i = 0; i < 8; i++)
456 snd_hda_codec_write(codec, cvt_nid, 0,
457 AC_VERB_SET_HDMI_CHAN_SLOT,
458 (i << 4) | i);
459
460 hdmi_debug_channel_mapping(codec);
461 }
462
463
464 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
465 struct snd_pcm_substream *substream)
466 {
467 struct hdmi_audio_infoframe ai = {
468 .type = 0x84,
469 .ver = 0x01,
470 .len = 0x0a,
471 .CC02_CT47 = substream->runtime->channels - 1,
472 };
473
474 hdmi_setup_channel_allocation(codec, &ai);
475 hdmi_setup_channel_mapping(codec, &ai);
476
477 hdmi_fill_audio_infoframe(codec, &ai);
478 hdmi_start_infoframe_trans(codec);
479 }
480
481
482 /*
483 * Unsolicited events
484 */
485
486 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
487 {
488 int pind = !!(res & AC_UNSOL_RES_PD);
489 int eldv = !!(res & AC_UNSOL_RES_ELDV);
490
491 printk(KERN_INFO
492 "HDMI hot plug event: Presence_Detect=%d ELD_Valid=%d\n",
493 pind, eldv);
494
495 if (pind && eldv) {
496 hdmi_parse_eld(codec);
497 /* TODO: do real things about ELD */
498 }
499 }
500
501 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
502 {
503 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
504 int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
505 int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
506
507 printk(KERN_INFO
508 "HDMI content protection event: SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
509 subtag,
510 cp_state,
511 cp_ready);
512
513 /* TODO */
514 if (cp_state)
515 ;
516 if (cp_ready)
517 ;
518 }
519
520
521 static void intel_hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
522 {
523 int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
524 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
525
526 if (tag != INTEL_HDMI_EVENT_TAG) {
527 snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag);
528 return;
529 }
530
531 if (subtag == 0)
532 hdmi_intrinsic_event(codec, res);
533 else
534 hdmi_non_intrinsic_event(codec, res);
535 }
536
537 /*
538 * Callbacks
539 */
540
541 static int intel_hdmi_playback_pcm_open(struct hda_pcm_stream *hinfo,
542 struct hda_codec *codec,
543 struct snd_pcm_substream *substream)
544 {
545 struct intel_hdmi_spec *spec = codec->spec;
546
547 return snd_hda_multi_out_dig_open(codec, &spec->multiout);
548 }
549
550 static int intel_hdmi_playback_pcm_close(struct hda_pcm_stream *hinfo,
551 struct hda_codec *codec,
552 struct snd_pcm_substream *substream)
553 {
554 struct intel_hdmi_spec *spec = codec->spec;
555
556 hdmi_stop_infoframe_trans(codec);
557
558 return snd_hda_multi_out_dig_close(codec, &spec->multiout);
559 }
560
561 static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
562 struct hda_codec *codec,
563 unsigned int stream_tag,
564 unsigned int format,
565 struct snd_pcm_substream *substream)
566 {
567 struct intel_hdmi_spec *spec = codec->spec;
568
569 snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
570 format, substream);
571
572 hdmi_set_channel_count(codec, substream->runtime->channels);
573
574 hdmi_setup_audio_infoframe(codec, substream);
575
576 return 0;
577 }
578
579 static struct hda_pcm_stream intel_hdmi_pcm_playback = {
580 .substreams = 1,
581 .channels_min = 2,
582 .channels_max = 8,
583 .ops = {
584 .open = intel_hdmi_playback_pcm_open,
585 .close = intel_hdmi_playback_pcm_close,
586 .prepare = intel_hdmi_playback_pcm_prepare
587 },
588 };
589
590 static int intel_hdmi_build_pcms(struct hda_codec *codec)
591 {
592 struct intel_hdmi_spec *spec = codec->spec;
593 struct hda_pcm *info = &spec->pcm_rec;
594
595 codec->num_pcms = 1;
596 codec->pcm_info = info;
597
598 /* NID to query formats and rates and setup streams */
599 intel_hdmi_pcm_playback.nid = cvt_nid;
600
601 info->name = "INTEL HDMI";
602 info->pcm_type = HDA_PCM_TYPE_HDMI;
603 info->stream[SNDRV_PCM_STREAM_PLAYBACK] = intel_hdmi_pcm_playback;
604
605 return 0;
606 }
607
608 static int intel_hdmi_build_controls(struct hda_codec *codec)
609 {
610 struct intel_hdmi_spec *spec = codec->spec;
611 int err;
612
613 err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
614 if (err < 0)
615 return err;
616
617 return 0;
618 }
619
620 static int intel_hdmi_init(struct hda_codec *codec)
621 {
622 hdmi_enable_output(codec);
623
624 snd_hda_codec_write(codec, pin_nid, 0,
625 AC_VERB_SET_UNSOLICITED_ENABLE,
626 AC_USRSP_EN | INTEL_HDMI_EVENT_TAG);
627 return 0;
628 }
629
630 static void intel_hdmi_free(struct hda_codec *codec)
631 {
632 struct intel_hdmi_spec *spec = codec->spec;
633
634 snd_hda_eld_proc_free(codec, &spec->sink_eld);
635 kfree(spec);
636 }
637
638 static struct hda_codec_ops intel_hdmi_patch_ops = {
639 .init = intel_hdmi_init,
640 .free = intel_hdmi_free,
641 .build_pcms = intel_hdmi_build_pcms,
642 .build_controls = intel_hdmi_build_controls,
643 .unsol_event = intel_hdmi_unsol_event,
644 };
645
646 static int do_patch_intel_hdmi(struct hda_codec *codec)
647 {
648 struct intel_hdmi_spec *spec;
649
650 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
651 if (spec == NULL)
652 return -ENOMEM;
653
654 spec->multiout.num_dacs = 0; /* no analog */
655 spec->multiout.max_channels = 8;
656 spec->multiout.dig_out_nid = cvt_nid;
657
658 codec->spec = spec;
659 codec->patch_ops = intel_hdmi_patch_ops;
660
661 snd_hda_eld_proc_new(codec, &spec->sink_eld);
662
663 init_channel_allocations();
664
665 return 0;
666 }
667
668 static int patch_intel_hdmi(struct hda_codec *codec)
669 {
670 cvt_nid = 0x02;
671 pin_nid = 0x03;
672 return do_patch_intel_hdmi(codec);
673 }
674
675 static int patch_intel_hdmi_ibexpeak(struct hda_codec *codec)
676 {
677 cvt_nid = 0x02;
678 pin_nid = 0x04;
679 return do_patch_intel_hdmi(codec);
680 }
681
682 static struct hda_codec_preset snd_hda_preset_intelhdmi[] = {
683 { .id = 0x808629fb, .name = "G45 DEVCL", .patch = patch_intel_hdmi },
684 { .id = 0x80862801, .name = "G45 DEVBLC", .patch = patch_intel_hdmi },
685 { .id = 0x80862802, .name = "G45 DEVCTG", .patch = patch_intel_hdmi },
686 { .id = 0x80862803, .name = "G45 DEVELK", .patch = patch_intel_hdmi },
687 { .id = 0x80862804, .name = "G45 DEVIBX", .patch = patch_intel_hdmi },
688 { .id = 0x80860054, .name = "Q57 DEVIBX", .patch = patch_intel_hdmi_ibexpeak },
689 { .id = 0x10951392, .name = "SiI1392 HDMI", .patch = patch_intel_hdmi },
690 {} /* terminator */
691 };
692
693 MODULE_ALIAS("snd-hda-codec-id:808629fb");
694 MODULE_ALIAS("snd-hda-codec-id:80862801");
695 MODULE_ALIAS("snd-hda-codec-id:80862802");
696 MODULE_ALIAS("snd-hda-codec-id:80862803");
697 MODULE_ALIAS("snd-hda-codec-id:80862804");
698 MODULE_ALIAS("snd-hda-codec-id:80860054");
699 MODULE_ALIAS("snd-hda-codec-id:10951392");
700
701 MODULE_LICENSE("GPL");
702 MODULE_DESCRIPTION("Intel HDMI HD-audio codec");
703
704 static struct hda_codec_preset_list intel_list = {
705 .preset = snd_hda_preset_intelhdmi,
706 .owner = THIS_MODULE,
707 };
708
709 static int __init patch_intelhdmi_init(void)
710 {
711 return snd_hda_add_codec_preset(&intel_list);
712 }
713
714 static void __exit patch_intelhdmi_exit(void)
715 {
716 snd_hda_delete_codec_preset(&intel_list);
717 }
718
719 module_init(patch_intelhdmi_init)
720 module_exit(patch_intelhdmi_exit)
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