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6be5ca44a83b56559c9970d2b910e917b1c51002
[deliverable/linux.git] / sound / pci / hda / patch_intelhdmi.c
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_pcm pcm_rec;
43 struct hdmi_eld sink_eld;
44 };
45
46 struct hdmi_audio_infoframe {
47 u8 type; /* 0x84 */
48 u8 ver; /* 0x01 */
49 u8 len; /* 0x0a */
50
51 u8 checksum; /* PB0 */
52 u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */
53 u8 SS01_SF24;
54 u8 CXT04;
55 u8 CA;
56 u8 LFEPBL01_LSV36_DM_INH7;
57 u8 reserved[5]; /* PB6 - PB10 */
58 };
59
60 /*
61 * CEA speaker placement:
62 *
63 * FLH FCH FRH
64 * FLW FL FLC FC FRC FR FRW
65 *
66 * LFE
67 * TC
68 *
69 * RL RLC RC RRC RR
70 *
71 * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
72 * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
73 */
74 enum cea_speaker_placement {
75 FL = (1 << 0), /* Front Left */
76 FC = (1 << 1), /* Front Center */
77 FR = (1 << 2), /* Front Right */
78 FLC = (1 << 3), /* Front Left Center */
79 FRC = (1 << 4), /* Front Right Center */
80 RL = (1 << 5), /* Rear Left */
81 RC = (1 << 6), /* Rear Center */
82 RR = (1 << 7), /* Rear Right */
83 RLC = (1 << 8), /* Rear Left Center */
84 RRC = (1 << 9), /* Rear Right Center */
85 LFE = (1 << 10), /* Low Frequency Effect */
86 FLW = (1 << 11), /* Front Left Wide */
87 FRW = (1 << 12), /* Front Right Wide */
88 FLH = (1 << 13), /* Front Left High */
89 FCH = (1 << 14), /* Front Center High */
90 FRH = (1 << 15), /* Front Right High */
91 TC = (1 << 16), /* Top Center */
92 };
93
94 /*
95 * ELD SA bits in the CEA Speaker Allocation data block
96 */
97 static int eld_speaker_allocation_bits[] = {
98 [0] = FL | FR,
99 [1] = LFE,
100 [2] = FC,
101 [3] = RL | RR,
102 [4] = RC,
103 [5] = FLC | FRC,
104 [6] = RLC | RRC,
105 /* the following are not defined in ELD yet */
106 [7] = FLW | FRW,
107 [8] = FLH | FRH,
108 [9] = TC,
109 [10] = FCH,
110 };
111
112 struct cea_channel_speaker_allocation {
113 int ca_index;
114 int speakers[8];
115
116 /* derived values, just for convenience */
117 int channels;
118 int spk_mask;
119 };
120
121 /*
122 * This is an ordered list!
123 *
124 * The preceding ones have better chances to be selected by
125 * hdmi_setup_channel_allocation().
126 */
127 static struct cea_channel_speaker_allocation channel_allocations[] = {
128 /* channel: 8 7 6 5 4 3 2 1 */
129 { .ca_index = 0x00, .speakers = { 0, 0, 0, 0, 0, 0, FR, FL } },
130 /* 2.1 */
131 { .ca_index = 0x01, .speakers = { 0, 0, 0, 0, 0, LFE, FR, FL } },
132 /* Dolby Surround */
133 { .ca_index = 0x02, .speakers = { 0, 0, 0, 0, FC, 0, FR, FL } },
134 { .ca_index = 0x03, .speakers = { 0, 0, 0, 0, FC, LFE, FR, FL } },
135 { .ca_index = 0x04, .speakers = { 0, 0, 0, RC, 0, 0, FR, FL } },
136 { .ca_index = 0x05, .speakers = { 0, 0, 0, RC, 0, LFE, FR, FL } },
137 { .ca_index = 0x06, .speakers = { 0, 0, 0, RC, FC, 0, FR, FL } },
138 { .ca_index = 0x07, .speakers = { 0, 0, 0, RC, FC, LFE, FR, FL } },
139 { .ca_index = 0x08, .speakers = { 0, 0, RR, RL, 0, 0, FR, FL } },
140 { .ca_index = 0x09, .speakers = { 0, 0, RR, RL, 0, LFE, FR, FL } },
141 { .ca_index = 0x0a, .speakers = { 0, 0, RR, RL, FC, 0, FR, FL } },
142 /* 5.1 */
143 { .ca_index = 0x0b, .speakers = { 0, 0, RR, RL, FC, LFE, FR, FL } },
144 { .ca_index = 0x0c, .speakers = { 0, RC, RR, RL, 0, 0, FR, FL } },
145 { .ca_index = 0x0d, .speakers = { 0, RC, RR, RL, 0, LFE, FR, FL } },
146 { .ca_index = 0x0e, .speakers = { 0, RC, RR, RL, FC, 0, FR, FL } },
147 /* 6.1 */
148 { .ca_index = 0x0f, .speakers = { 0, RC, RR, RL, FC, LFE, FR, FL } },
149 { .ca_index = 0x10, .speakers = { RRC, RLC, RR, RL, 0, 0, FR, FL } },
150 { .ca_index = 0x11, .speakers = { RRC, RLC, RR, RL, 0, LFE, FR, FL } },
151 { .ca_index = 0x12, .speakers = { RRC, RLC, RR, RL, FC, 0, FR, FL } },
152 /* 7.1 */
153 { .ca_index = 0x13, .speakers = { RRC, RLC, RR, RL, FC, LFE, FR, FL } },
154 { .ca_index = 0x14, .speakers = { FRC, FLC, 0, 0, 0, 0, FR, FL } },
155 { .ca_index = 0x15, .speakers = { FRC, FLC, 0, 0, 0, LFE, FR, FL } },
156 { .ca_index = 0x16, .speakers = { FRC, FLC, 0, 0, FC, 0, FR, FL } },
157 { .ca_index = 0x17, .speakers = { FRC, FLC, 0, 0, FC, LFE, FR, FL } },
158 { .ca_index = 0x18, .speakers = { FRC, FLC, 0, RC, 0, 0, FR, FL } },
159 { .ca_index = 0x19, .speakers = { FRC, FLC, 0, RC, 0, LFE, FR, FL } },
160 { .ca_index = 0x1a, .speakers = { FRC, FLC, 0, RC, FC, 0, FR, FL } },
161 { .ca_index = 0x1b, .speakers = { FRC, FLC, 0, RC, FC, LFE, FR, FL } },
162 { .ca_index = 0x1c, .speakers = { FRC, FLC, RR, RL, 0, 0, FR, FL } },
163 { .ca_index = 0x1d, .speakers = { FRC, FLC, RR, RL, 0, LFE, FR, FL } },
164 { .ca_index = 0x1e, .speakers = { FRC, FLC, RR, RL, FC, 0, FR, FL } },
165 { .ca_index = 0x1f, .speakers = { FRC, FLC, RR, RL, FC, LFE, FR, FL } },
166 { .ca_index = 0x20, .speakers = { 0, FCH, RR, RL, FC, 0, FR, FL } },
167 { .ca_index = 0x21, .speakers = { 0, FCH, RR, RL, FC, LFE, FR, FL } },
168 { .ca_index = 0x22, .speakers = { TC, 0, RR, RL, FC, 0, FR, FL } },
169 { .ca_index = 0x23, .speakers = { TC, 0, RR, RL, FC, LFE, FR, FL } },
170 { .ca_index = 0x24, .speakers = { FRH, FLH, RR, RL, 0, 0, FR, FL } },
171 { .ca_index = 0x25, .speakers = { FRH, FLH, RR, RL, 0, LFE, FR, FL } },
172 { .ca_index = 0x26, .speakers = { FRW, FLW, RR, RL, 0, 0, FR, FL } },
173 { .ca_index = 0x27, .speakers = { FRW, FLW, RR, RL, 0, LFE, FR, FL } },
174 { .ca_index = 0x28, .speakers = { TC, RC, RR, RL, FC, 0, FR, FL } },
175 { .ca_index = 0x29, .speakers = { TC, RC, RR, RL, FC, LFE, FR, FL } },
176 { .ca_index = 0x2a, .speakers = { FCH, RC, RR, RL, FC, 0, FR, FL } },
177 { .ca_index = 0x2b, .speakers = { FCH, RC, RR, RL, FC, LFE, FR, FL } },
178 { .ca_index = 0x2c, .speakers = { TC, FCH, RR, RL, FC, 0, FR, FL } },
179 { .ca_index = 0x2d, .speakers = { TC, FCH, RR, RL, FC, LFE, FR, FL } },
180 { .ca_index = 0x2e, .speakers = { FRH, FLH, RR, RL, FC, 0, FR, FL } },
181 { .ca_index = 0x2f, .speakers = { FRH, FLH, RR, RL, FC, LFE, FR, FL } },
182 { .ca_index = 0x30, .speakers = { FRW, FLW, RR, RL, FC, 0, FR, FL } },
183 { .ca_index = 0x31, .speakers = { FRW, FLW, RR, RL, FC, LFE, FR, FL } },
184 };
185
186 /*
187 * HDMI routines
188 */
189
190 #ifdef BE_PARANOID
191 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
192 int *packet_index, int *byte_index)
193 {
194 int val;
195
196 val = snd_hda_codec_read(codec, pin_nid, 0,
197 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 pin_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, pin_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 pin_nid,
215 unsigned char val)
216 {
217 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
218 }
219
220 static void hdmi_enable_output(struct hda_codec *codec, hda_nid_t pin_nid)
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 hda_nid_t pin_nid)
236 {
237 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
238 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
239 AC_DIPXMIT_BEST);
240 }
241
242 /*
243 * Disable Audio InfoFrame Transmission
244 */
245 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
246 hda_nid_t pin_nid)
247 {
248 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
249 snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
250 AC_DIPXMIT_DISABLE);
251 }
252
253 static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid)
254 {
255 return 1 + snd_hda_codec_read(codec, nid, 0,
256 AC_VERB_GET_CVT_CHAN_COUNT, 0);
257 }
258
259 static void hdmi_set_channel_count(struct hda_codec *codec,
260 hda_nid_t nid, int chs)
261 {
262 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
263
264 #ifdef CONFIG_SND_DEBUG_VERBOSE
265 if (chs != hdmi_get_channel_count(codec, nid))
266 snd_printd(KERN_INFO "HDMI channel count: expect %d, get %d\n",
267 chs, hdmi_get_channel_count(codec, nid));
268 #endif
269 }
270
271 static void hdmi_debug_channel_mapping(struct hda_codec *codec, hda_nid_t nid)
272 {
273 #ifdef CONFIG_SND_DEBUG_VERBOSE
274 int i;
275 int slot;
276
277 for (i = 0; i < 8; i++) {
278 slot = snd_hda_codec_read(codec, nid, 0,
279 AC_VERB_GET_HDMI_CHAN_SLOT, i);
280 printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
281 slot >> 4, slot & 0x7);
282 }
283 #endif
284 }
285
286 static void hdmi_parse_eld(struct hda_codec *codec)
287 {
288 struct intel_hdmi_spec *spec = codec->spec;
289 struct hdmi_eld *eld = &spec->sink_eld;
290
291 if (!snd_hdmi_get_eld(eld, codec, pin_nid))
292 snd_hdmi_show_eld(eld);
293 }
294
295
296 /*
297 * Audio InfoFrame routines
298 */
299
300 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
301 {
302 #ifdef CONFIG_SND_DEBUG_VERBOSE
303 int i;
304 int size;
305
306 size = snd_hdmi_get_eld_size(codec, pin_nid);
307 printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size);
308
309 for (i = 0; i < 8; i++) {
310 size = snd_hda_codec_read(codec, pin_nid, 0,
311 AC_VERB_GET_HDMI_DIP_SIZE, i);
312 printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size);
313 }
314 #endif
315 }
316
317 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
318 {
319 #ifdef BE_PARANOID
320 int i, j;
321 int size;
322 int pi, bi;
323 for (i = 0; i < 8; i++) {
324 size = snd_hda_codec_read(codec, pin_nid, 0,
325 AC_VERB_GET_HDMI_DIP_SIZE, i);
326 if (size == 0)
327 continue;
328
329 hdmi_set_dip_index(codec, pin_nid, i, 0x0);
330 for (j = 1; j < 1000; j++) {
331 hdmi_write_dip_byte(codec, pin_nid, 0x0);
332 hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
333 if (pi != i)
334 snd_printd(KERN_INFO "dip index %d: %d != %d\n",
335 bi, pi, i);
336 if (bi == 0) /* byte index wrapped around */
337 break;
338 }
339 snd_printd(KERN_INFO
340 "HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
341 i, size, j);
342 }
343 #endif
344 }
345
346 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
347 hda_nid_t pin_nid,
348 struct hdmi_audio_infoframe *ai)
349 {
350 u8 *params = (u8 *)ai;
351 u8 sum = 0;
352 int i;
353
354 hdmi_debug_dip_size(codec, pin_nid);
355 hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
356
357 for (i = 0; i < sizeof(ai); i++)
358 sum += params[i];
359 ai->checksum = - sum;
360
361 hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
362 for (i = 0; i < sizeof(ai); i++)
363 hdmi_write_dip_byte(codec, pin_nid, params[i]);
364 }
365
366 /*
367 * Compute derived values in channel_allocations[].
368 */
369 static void init_channel_allocations(void)
370 {
371 int i, j;
372 struct cea_channel_speaker_allocation *p;
373
374 for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
375 p = channel_allocations + i;
376 p->channels = 0;
377 p->spk_mask = 0;
378 for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
379 if (p->speakers[j]) {
380 p->channels++;
381 p->spk_mask |= p->speakers[j];
382 }
383 }
384 }
385
386 /*
387 * The transformation takes two steps:
388 *
389 * eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
390 * spk_mask => (channel_allocations[]) => ai->CA
391 *
392 * TODO: it could select the wrong CA from multiple candidates.
393 */
394 static int hdmi_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid,
395 struct hdmi_audio_infoframe *ai)
396 {
397 struct intel_hdmi_spec *spec = codec->spec;
398 struct hdmi_eld *eld = &spec->sink_eld;
399 int i;
400 int spk_mask = 0;
401 int channels = 1 + (ai->CC02_CT47 & 0x7);
402 char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
403
404 /*
405 * CA defaults to 0 for basic stereo audio
406 */
407 if (channels <= 2)
408 return 0;
409
410 /*
411 * HDMI sink's ELD info cannot always be retrieved for now, e.g.
412 * in console or for audio devices. Assume the highest speakers
413 * configuration, to _not_ prohibit multi-channel audio playback.
414 */
415 if (!eld->spk_alloc)
416 eld->spk_alloc = 0xffff;
417
418 /*
419 * expand ELD's speaker allocation mask
420 *
421 * ELD tells the speaker mask in a compact(paired) form,
422 * expand ELD's notions to match the ones used by Audio InfoFrame.
423 */
424 for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
425 if (eld->spk_alloc & (1 << i))
426 spk_mask |= eld_speaker_allocation_bits[i];
427 }
428
429 /* search for the first working match in the CA table */
430 for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
431 if (channels == channel_allocations[i].channels &&
432 (spk_mask & channel_allocations[i].spk_mask) ==
433 channel_allocations[i].spk_mask) {
434 ai->CA = channel_allocations[i].ca_index;
435 break;
436 }
437 }
438
439 snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
440 snd_printdd(KERN_INFO
441 "HDMI: select CA 0x%x for %d-channel allocation: %s\n",
442 ai->CA, channels, buf);
443
444 return ai->CA;
445 }
446
447 static void hdmi_setup_channel_mapping(struct hda_codec *codec, hda_nid_t nid,
448 struct hdmi_audio_infoframe *ai)
449 {
450 int i;
451
452 if (!ai->CA)
453 return;
454
455 /*
456 * TODO: adjust channel mapping if necessary
457 * ALSA sequence is front/surr/clfe/side?
458 */
459
460 for (i = 0; i < 8; i++)
461 snd_hda_codec_write(codec, nid, 0,
462 AC_VERB_SET_HDMI_CHAN_SLOT,
463 (i << 4) | i);
464
465 hdmi_debug_channel_mapping(codec, nid);
466 }
467
468
469 static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid,
470 struct snd_pcm_substream *substream)
471 {
472 struct hdmi_audio_infoframe ai = {
473 .type = 0x84,
474 .ver = 0x01,
475 .len = 0x0a,
476 .CC02_CT47 = substream->runtime->channels - 1,
477 };
478
479 hdmi_setup_channel_allocation(codec, nid, &ai);
480 hdmi_setup_channel_mapping(codec, nid, &ai);
481
482 hdmi_fill_audio_infoframe(codec, pin_nid, &ai);
483 hdmi_start_infoframe_trans(codec, pin_nid);
484 }
485
486
487 /*
488 * Unsolicited events
489 */
490
491 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
492 {
493 int pind = !!(res & AC_UNSOL_RES_PD);
494 int eldv = !!(res & AC_UNSOL_RES_ELDV);
495
496 printk(KERN_INFO
497 "HDMI hot plug event: Presence_Detect=%d ELD_Valid=%d\n",
498 pind, eldv);
499
500 if (pind && eldv) {
501 hdmi_parse_eld(codec);
502 /* TODO: do real things about ELD */
503 }
504 }
505
506 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
507 {
508 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
509 int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
510 int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
511
512 printk(KERN_INFO
513 "HDMI content protection event: SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
514 subtag,
515 cp_state,
516 cp_ready);
517
518 /* TODO */
519 if (cp_state)
520 ;
521 if (cp_ready)
522 ;
523 }
524
525
526 static void intel_hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
527 {
528 int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
529 int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
530
531 if (tag != INTEL_HDMI_EVENT_TAG) {
532 snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag);
533 return;
534 }
535
536 if (subtag == 0)
537 hdmi_intrinsic_event(codec, res);
538 else
539 hdmi_non_intrinsic_event(codec, res);
540 }
541
542 /*
543 * Callbacks
544 */
545
546 static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
547 struct hda_codec *codec,
548 unsigned int stream_tag,
549 unsigned int format,
550 struct snd_pcm_substream *substream)
551 {
552 hdmi_set_channel_count(codec, cvt_nid,
553 substream->runtime->channels);
554
555 hdmi_setup_audio_infoframe(codec, cvt_nid, substream);
556
557 snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
558 return 0;
559 }
560
561 static int intel_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
562 struct hda_codec *codec,
563 struct snd_pcm_substream *substream)
564 {
565 struct intel_hdmi_spec *spec = codec->spec;
566
567 hdmi_stop_infoframe_trans(codec, pin_nid);
568
569 snd_hda_codec_cleanup_stream(codec, hinfo->nid);
570 return 0;
571 }
572
573 static struct hda_pcm_stream intel_hdmi_pcm_playback = {
574 .substreams = 1,
575 .channels_min = 2,
576 .channels_max = 8,
577 .ops = {
578 .prepare = intel_hdmi_playback_pcm_prepare,
579 .cleanup = intel_hdmi_playback_pcm_cleanup,
580 },
581 };
582
583 static int intel_hdmi_build_pcms(struct hda_codec *codec)
584 {
585 struct intel_hdmi_spec *spec = codec->spec;
586 struct hda_pcm *info = &spec->pcm_rec;
587
588 codec->num_pcms = 1;
589 codec->pcm_info = info;
590
591 /* NID to query formats and rates and setup streams */
592 intel_hdmi_pcm_playback.nid = cvt_nid;
593
594 info->name = "INTEL HDMI";
595 info->pcm_type = HDA_PCM_TYPE_HDMI;
596 info->stream[SNDRV_PCM_STREAM_PLAYBACK] = intel_hdmi_pcm_playback;
597
598 return 0;
599 }
600
601 static int intel_hdmi_build_controls(struct hda_codec *codec)
602 {
603 struct intel_hdmi_spec *spec = codec->spec;
604 int err;
605
606 err = snd_hda_create_spdif_out_ctls(codec, cvt_nid);
607 if (err < 0)
608 return err;
609
610 return 0;
611 }
612
613 static int intel_hdmi_init(struct hda_codec *codec)
614 {
615 hdmi_enable_output(codec, pin_nid);
616
617 snd_hda_codec_write(codec, pin_nid, 0,
618 AC_VERB_SET_UNSOLICITED_ENABLE,
619 AC_USRSP_EN | INTEL_HDMI_EVENT_TAG);
620 return 0;
621 }
622
623 static void intel_hdmi_free(struct hda_codec *codec)
624 {
625 struct intel_hdmi_spec *spec = codec->spec;
626
627 snd_hda_eld_proc_free(codec, &spec->sink_eld);
628 kfree(spec);
629 }
630
631 static struct hda_codec_ops intel_hdmi_patch_ops = {
632 .init = intel_hdmi_init,
633 .free = intel_hdmi_free,
634 .build_pcms = intel_hdmi_build_pcms,
635 .build_controls = intel_hdmi_build_controls,
636 .unsol_event = intel_hdmi_unsol_event,
637 };
638
639 static int do_patch_intel_hdmi(struct hda_codec *codec)
640 {
641 struct intel_hdmi_spec *spec;
642
643 spec = kzalloc(sizeof(*spec), GFP_KERNEL);
644 if (spec == NULL)
645 return -ENOMEM;
646
647 codec->spec = spec;
648 codec->patch_ops = intel_hdmi_patch_ops;
649
650 snd_hda_eld_proc_new(codec, &spec->sink_eld);
651
652 init_channel_allocations();
653
654 return 0;
655 }
656
657 static int patch_intel_hdmi(struct hda_codec *codec)
658 {
659 cvt_nid = 0x02;
660 pin_nid = 0x03;
661 return do_patch_intel_hdmi(codec);
662 }
663
664 static int patch_intel_hdmi_ibexpeak(struct hda_codec *codec)
665 {
666 cvt_nid = 0x02;
667 pin_nid = 0x04;
668 return do_patch_intel_hdmi(codec);
669 }
670
671 static struct hda_codec_preset snd_hda_preset_intelhdmi[] = {
672 { .id = 0x808629fb, .name = "G45 DEVCL", .patch = patch_intel_hdmi },
673 { .id = 0x80862801, .name = "G45 DEVBLC", .patch = patch_intel_hdmi },
674 { .id = 0x80862802, .name = "G45 DEVCTG", .patch = patch_intel_hdmi },
675 { .id = 0x80862803, .name = "G45 DEVELK", .patch = patch_intel_hdmi },
676 { .id = 0x80862804, .name = "G45 DEVIBX", .patch = patch_intel_hdmi_ibexpeak },
677 { .id = 0x80860054, .name = "Q57 DEVIBX", .patch = patch_intel_hdmi_ibexpeak },
678 { .id = 0x10951392, .name = "SiI1392 HDMI", .patch = patch_intel_hdmi },
679 {} /* terminator */
680 };
681
682 MODULE_ALIAS("snd-hda-codec-id:808629fb");
683 MODULE_ALIAS("snd-hda-codec-id:80862801");
684 MODULE_ALIAS("snd-hda-codec-id:80862802");
685 MODULE_ALIAS("snd-hda-codec-id:80862803");
686 MODULE_ALIAS("snd-hda-codec-id:80862804");
687 MODULE_ALIAS("snd-hda-codec-id:80860054");
688 MODULE_ALIAS("snd-hda-codec-id:10951392");
689
690 MODULE_LICENSE("GPL");
691 MODULE_DESCRIPTION("Intel HDMI HD-audio codec");
692
693 static struct hda_codec_preset_list intel_list = {
694 .preset = snd_hda_preset_intelhdmi,
695 .owner = THIS_MODULE,
696 };
697
698 static int __init patch_intelhdmi_init(void)
699 {
700 return snd_hda_add_codec_preset(&intel_list);
701 }
702
703 static void __exit patch_intelhdmi_exit(void)
704 {
705 snd_hda_delete_codec_preset(&intel_list);
706 }
707
708 module_init(patch_intelhdmi_init)
709 module_exit(patch_intelhdmi_exit)
Linux kernel - Deliverables
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