xref: /openbmc/linux/sound/pci/hda/patch_hdmi.c (revision f7777dcc)
1 /*
2  *
3  *  patch_hdmi.c - routines for HDMI/DisplayPort codecs
4  *
5  *  Copyright(c) 2008-2010 Intel Corporation. All rights reserved.
6  *  Copyright (c) 2006 ATI Technologies Inc.
7  *  Copyright (c) 2008 NVIDIA Corp.  All rights reserved.
8  *  Copyright (c) 2008 Wei Ni <wni@nvidia.com>
9  *
10  *  Authors:
11  *			Wu Fengguang <wfg@linux.intel.com>
12  *
13  *  Maintained by:
14  *			Wu Fengguang <wfg@linux.intel.com>
15  *
16  *  This program is free software; you can redistribute it and/or modify it
17  *  under the terms of the GNU General Public License as published by the Free
18  *  Software Foundation; either version 2 of the License, or (at your option)
19  *  any later version.
20  *
21  *  This program is distributed in the hope that it will be useful, but
22  *  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
23  *  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
24  *  for more details.
25  *
26  *  You should have received a copy of the GNU General Public License
27  *  along with this program; if not, write to the Free Software Foundation,
28  *  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
29  */
30 
31 #include <linux/init.h>
32 #include <linux/delay.h>
33 #include <linux/slab.h>
34 #include <linux/module.h>
35 #include <sound/core.h>
36 #include <sound/jack.h>
37 #include <sound/asoundef.h>
38 #include <sound/tlv.h>
39 #include "hda_codec.h"
40 #include "hda_local.h"
41 #include "hda_jack.h"
42 
43 static bool static_hdmi_pcm;
44 module_param(static_hdmi_pcm, bool, 0644);
45 MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
46 
47 #define is_haswell(codec)  ((codec)->vendor_id == 0x80862807)
48 
49 struct hdmi_spec_per_cvt {
50 	hda_nid_t cvt_nid;
51 	int assigned;
52 	unsigned int channels_min;
53 	unsigned int channels_max;
54 	u32 rates;
55 	u64 formats;
56 	unsigned int maxbps;
57 };
58 
59 /* max. connections to a widget */
60 #define HDA_MAX_CONNECTIONS	32
61 
62 struct hdmi_spec_per_pin {
63 	hda_nid_t pin_nid;
64 	int num_mux_nids;
65 	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
66 
67 	struct hda_codec *codec;
68 	struct hdmi_eld sink_eld;
69 	struct delayed_work work;
70 	struct snd_kcontrol *eld_ctl;
71 	int repoll_count;
72 	bool setup; /* the stream has been set up by prepare callback */
73 	int channels; /* current number of channels */
74 	bool non_pcm;
75 	bool chmap_set;		/* channel-map override by ALSA API? */
76 	unsigned char chmap[8]; /* ALSA API channel-map */
77 	char pcm_name[8];	/* filled in build_pcm callbacks */
78 };
79 
80 struct hdmi_spec {
81 	int num_cvts;
82 	struct snd_array cvts; /* struct hdmi_spec_per_cvt */
83 	hda_nid_t cvt_nids[4]; /* only for haswell fix */
84 
85 	int num_pins;
86 	struct snd_array pins; /* struct hdmi_spec_per_pin */
87 	struct snd_array pcm_rec; /* struct hda_pcm */
88 	unsigned int channels_max; /* max over all cvts */
89 
90 	struct hdmi_eld temp_eld;
91 	/*
92 	 * Non-generic ATI/NVIDIA specific
93 	 */
94 	struct hda_multi_out multiout;
95 	struct hda_pcm_stream pcm_playback;
96 };
97 
98 
99 struct hdmi_audio_infoframe {
100 	u8 type; /* 0x84 */
101 	u8 ver;  /* 0x01 */
102 	u8 len;  /* 0x0a */
103 
104 	u8 checksum;
105 
106 	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
107 	u8 SS01_SF24;
108 	u8 CXT04;
109 	u8 CA;
110 	u8 LFEPBL01_LSV36_DM_INH7;
111 };
112 
113 struct dp_audio_infoframe {
114 	u8 type; /* 0x84 */
115 	u8 len;  /* 0x1b */
116 	u8 ver;  /* 0x11 << 2 */
117 
118 	u8 CC02_CT47;	/* match with HDMI infoframe from this on */
119 	u8 SS01_SF24;
120 	u8 CXT04;
121 	u8 CA;
122 	u8 LFEPBL01_LSV36_DM_INH7;
123 };
124 
125 union audio_infoframe {
126 	struct hdmi_audio_infoframe hdmi;
127 	struct dp_audio_infoframe dp;
128 	u8 bytes[0];
129 };
130 
131 /*
132  * CEA speaker placement:
133  *
134  *        FLH       FCH        FRH
135  *  FLW    FL  FLC   FC   FRC   FR   FRW
136  *
137  *                                  LFE
138  *                     TC
139  *
140  *          RL  RLC   RC   RRC   RR
141  *
142  * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
143  * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
144  */
145 enum cea_speaker_placement {
146 	FL  = (1 <<  0),	/* Front Left           */
147 	FC  = (1 <<  1),	/* Front Center         */
148 	FR  = (1 <<  2),	/* Front Right          */
149 	FLC = (1 <<  3),	/* Front Left Center    */
150 	FRC = (1 <<  4),	/* Front Right Center   */
151 	RL  = (1 <<  5),	/* Rear Left            */
152 	RC  = (1 <<  6),	/* Rear Center          */
153 	RR  = (1 <<  7),	/* Rear Right           */
154 	RLC = (1 <<  8),	/* Rear Left Center     */
155 	RRC = (1 <<  9),	/* Rear Right Center    */
156 	LFE = (1 << 10),	/* Low Frequency Effect */
157 	FLW = (1 << 11),	/* Front Left Wide      */
158 	FRW = (1 << 12),	/* Front Right Wide     */
159 	FLH = (1 << 13),	/* Front Left High      */
160 	FCH = (1 << 14),	/* Front Center High    */
161 	FRH = (1 << 15),	/* Front Right High     */
162 	TC  = (1 << 16),	/* Top Center           */
163 };
164 
165 /*
166  * ELD SA bits in the CEA Speaker Allocation data block
167  */
168 static int eld_speaker_allocation_bits[] = {
169 	[0] = FL | FR,
170 	[1] = LFE,
171 	[2] = FC,
172 	[3] = RL | RR,
173 	[4] = RC,
174 	[5] = FLC | FRC,
175 	[6] = RLC | RRC,
176 	/* the following are not defined in ELD yet */
177 	[7] = FLW | FRW,
178 	[8] = FLH | FRH,
179 	[9] = TC,
180 	[10] = FCH,
181 };
182 
183 struct cea_channel_speaker_allocation {
184 	int ca_index;
185 	int speakers[8];
186 
187 	/* derived values, just for convenience */
188 	int channels;
189 	int spk_mask;
190 };
191 
192 /*
193  * ALSA sequence is:
194  *
195  *       surround40   surround41   surround50   surround51   surround71
196  * ch0   front left   =            =            =            =
197  * ch1   front right  =            =            =            =
198  * ch2   rear left    =            =            =            =
199  * ch3   rear right   =            =            =            =
200  * ch4                LFE          center       center       center
201  * ch5                                          LFE          LFE
202  * ch6                                                       side left
203  * ch7                                                       side right
204  *
205  * surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR}
206  */
207 static int hdmi_channel_mapping[0x32][8] = {
208 	/* stereo */
209 	[0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
210 	/* 2.1 */
211 	[0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
212 	/* Dolby Surround */
213 	[0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 },
214 	/* surround40 */
215 	[0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 },
216 	/* 4ch */
217 	[0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 },
218 	/* surround41 */
219 	[0x09] = { 0x00, 0x11, 0x24, 0x35, 0x42, 0xf3, 0xf6, 0xf7 },
220 	/* surround50 */
221 	[0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 },
222 	/* surround51 */
223 	[0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 },
224 	/* 7.1 */
225 	[0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 },
226 };
227 
228 /*
229  * This is an ordered list!
230  *
231  * The preceding ones have better chances to be selected by
232  * hdmi_channel_allocation().
233  */
234 static struct cea_channel_speaker_allocation channel_allocations[] = {
235 /*			  channel:   7     6    5    4    3     2    1    0  */
236 { .ca_index = 0x00,  .speakers = {   0,    0,   0,   0,   0,    0,  FR,  FL } },
237 				 /* 2.1 */
238 { .ca_index = 0x01,  .speakers = {   0,    0,   0,   0,   0,  LFE,  FR,  FL } },
239 				 /* Dolby Surround */
240 { .ca_index = 0x02,  .speakers = {   0,    0,   0,   0,  FC,    0,  FR,  FL } },
241 				 /* surround40 */
242 { .ca_index = 0x08,  .speakers = {   0,    0,  RR,  RL,   0,    0,  FR,  FL } },
243 				 /* surround41 */
244 { .ca_index = 0x09,  .speakers = {   0,    0,  RR,  RL,   0,  LFE,  FR,  FL } },
245 				 /* surround50 */
246 { .ca_index = 0x0a,  .speakers = {   0,    0,  RR,  RL,  FC,    0,  FR,  FL } },
247 				 /* surround51 */
248 { .ca_index = 0x0b,  .speakers = {   0,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
249 				 /* 6.1 */
250 { .ca_index = 0x0f,  .speakers = {   0,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
251 				 /* surround71 */
252 { .ca_index = 0x13,  .speakers = { RRC,  RLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
253 
254 { .ca_index = 0x03,  .speakers = {   0,    0,   0,   0,  FC,  LFE,  FR,  FL } },
255 { .ca_index = 0x04,  .speakers = {   0,    0,   0,  RC,   0,    0,  FR,  FL } },
256 { .ca_index = 0x05,  .speakers = {   0,    0,   0,  RC,   0,  LFE,  FR,  FL } },
257 { .ca_index = 0x06,  .speakers = {   0,    0,   0,  RC,  FC,    0,  FR,  FL } },
258 { .ca_index = 0x07,  .speakers = {   0,    0,   0,  RC,  FC,  LFE,  FR,  FL } },
259 { .ca_index = 0x0c,  .speakers = {   0,   RC,  RR,  RL,   0,    0,  FR,  FL } },
260 { .ca_index = 0x0d,  .speakers = {   0,   RC,  RR,  RL,   0,  LFE,  FR,  FL } },
261 { .ca_index = 0x0e,  .speakers = {   0,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
262 { .ca_index = 0x10,  .speakers = { RRC,  RLC,  RR,  RL,   0,    0,  FR,  FL } },
263 { .ca_index = 0x11,  .speakers = { RRC,  RLC,  RR,  RL,   0,  LFE,  FR,  FL } },
264 { .ca_index = 0x12,  .speakers = { RRC,  RLC,  RR,  RL,  FC,    0,  FR,  FL } },
265 { .ca_index = 0x14,  .speakers = { FRC,  FLC,   0,   0,   0,    0,  FR,  FL } },
266 { .ca_index = 0x15,  .speakers = { FRC,  FLC,   0,   0,   0,  LFE,  FR,  FL } },
267 { .ca_index = 0x16,  .speakers = { FRC,  FLC,   0,   0,  FC,    0,  FR,  FL } },
268 { .ca_index = 0x17,  .speakers = { FRC,  FLC,   0,   0,  FC,  LFE,  FR,  FL } },
269 { .ca_index = 0x18,  .speakers = { FRC,  FLC,   0,  RC,   0,    0,  FR,  FL } },
270 { .ca_index = 0x19,  .speakers = { FRC,  FLC,   0,  RC,   0,  LFE,  FR,  FL } },
271 { .ca_index = 0x1a,  .speakers = { FRC,  FLC,   0,  RC,  FC,    0,  FR,  FL } },
272 { .ca_index = 0x1b,  .speakers = { FRC,  FLC,   0,  RC,  FC,  LFE,  FR,  FL } },
273 { .ca_index = 0x1c,  .speakers = { FRC,  FLC,  RR,  RL,   0,    0,  FR,  FL } },
274 { .ca_index = 0x1d,  .speakers = { FRC,  FLC,  RR,  RL,   0,  LFE,  FR,  FL } },
275 { .ca_index = 0x1e,  .speakers = { FRC,  FLC,  RR,  RL,  FC,    0,  FR,  FL } },
276 { .ca_index = 0x1f,  .speakers = { FRC,  FLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
277 { .ca_index = 0x20,  .speakers = {   0,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
278 { .ca_index = 0x21,  .speakers = {   0,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
279 { .ca_index = 0x22,  .speakers = {  TC,    0,  RR,  RL,  FC,    0,  FR,  FL } },
280 { .ca_index = 0x23,  .speakers = {  TC,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
281 { .ca_index = 0x24,  .speakers = { FRH,  FLH,  RR,  RL,   0,    0,  FR,  FL } },
282 { .ca_index = 0x25,  .speakers = { FRH,  FLH,  RR,  RL,   0,  LFE,  FR,  FL } },
283 { .ca_index = 0x26,  .speakers = { FRW,  FLW,  RR,  RL,   0,    0,  FR,  FL } },
284 { .ca_index = 0x27,  .speakers = { FRW,  FLW,  RR,  RL,   0,  LFE,  FR,  FL } },
285 { .ca_index = 0x28,  .speakers = {  TC,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
286 { .ca_index = 0x29,  .speakers = {  TC,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
287 { .ca_index = 0x2a,  .speakers = { FCH,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
288 { .ca_index = 0x2b,  .speakers = { FCH,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
289 { .ca_index = 0x2c,  .speakers = {  TC,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
290 { .ca_index = 0x2d,  .speakers = {  TC,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
291 { .ca_index = 0x2e,  .speakers = { FRH,  FLH,  RR,  RL,  FC,    0,  FR,  FL } },
292 { .ca_index = 0x2f,  .speakers = { FRH,  FLH,  RR,  RL,  FC,  LFE,  FR,  FL } },
293 { .ca_index = 0x30,  .speakers = { FRW,  FLW,  RR,  RL,  FC,    0,  FR,  FL } },
294 { .ca_index = 0x31,  .speakers = { FRW,  FLW,  RR,  RL,  FC,  LFE,  FR,  FL } },
295 };
296 
297 
298 /*
299  * HDMI routines
300  */
301 
302 #define get_pin(spec, idx) \
303 	((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
304 #define get_cvt(spec, idx) \
305 	((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
306 #define get_pcm_rec(spec, idx) \
307 	((struct hda_pcm *)snd_array_elem(&spec->pcm_rec, idx))
308 
309 static int pin_nid_to_pin_index(struct hdmi_spec *spec, hda_nid_t pin_nid)
310 {
311 	int pin_idx;
312 
313 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
314 		if (get_pin(spec, pin_idx)->pin_nid == pin_nid)
315 			return pin_idx;
316 
317 	snd_printk(KERN_WARNING "HDMI: pin nid %d not registered\n", pin_nid);
318 	return -EINVAL;
319 }
320 
321 static int hinfo_to_pin_index(struct hdmi_spec *spec,
322 			      struct hda_pcm_stream *hinfo)
323 {
324 	int pin_idx;
325 
326 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
327 		if (get_pcm_rec(spec, pin_idx)->stream == hinfo)
328 			return pin_idx;
329 
330 	snd_printk(KERN_WARNING "HDMI: hinfo %p not registered\n", hinfo);
331 	return -EINVAL;
332 }
333 
334 static int cvt_nid_to_cvt_index(struct hdmi_spec *spec, hda_nid_t cvt_nid)
335 {
336 	int cvt_idx;
337 
338 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
339 		if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
340 			return cvt_idx;
341 
342 	snd_printk(KERN_WARNING "HDMI: cvt nid %d not registered\n", cvt_nid);
343 	return -EINVAL;
344 }
345 
346 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
347 			struct snd_ctl_elem_info *uinfo)
348 {
349 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
350 	struct hdmi_spec *spec = codec->spec;
351 	struct hdmi_eld *eld;
352 	int pin_idx;
353 
354 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
355 
356 	pin_idx = kcontrol->private_value;
357 	eld = &get_pin(spec, pin_idx)->sink_eld;
358 
359 	mutex_lock(&eld->lock);
360 	uinfo->count = eld->eld_valid ? eld->eld_size : 0;
361 	mutex_unlock(&eld->lock);
362 
363 	return 0;
364 }
365 
366 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
367 			struct snd_ctl_elem_value *ucontrol)
368 {
369 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
370 	struct hdmi_spec *spec = codec->spec;
371 	struct hdmi_eld *eld;
372 	int pin_idx;
373 
374 	pin_idx = kcontrol->private_value;
375 	eld = &get_pin(spec, pin_idx)->sink_eld;
376 
377 	mutex_lock(&eld->lock);
378 	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
379 		mutex_unlock(&eld->lock);
380 		snd_BUG();
381 		return -EINVAL;
382 	}
383 
384 	memset(ucontrol->value.bytes.data, 0,
385 	       ARRAY_SIZE(ucontrol->value.bytes.data));
386 	if (eld->eld_valid)
387 		memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
388 		       eld->eld_size);
389 	mutex_unlock(&eld->lock);
390 
391 	return 0;
392 }
393 
394 static struct snd_kcontrol_new eld_bytes_ctl = {
395 	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
396 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
397 	.name = "ELD",
398 	.info = hdmi_eld_ctl_info,
399 	.get = hdmi_eld_ctl_get,
400 };
401 
402 static int hdmi_create_eld_ctl(struct hda_codec *codec, int pin_idx,
403 			int device)
404 {
405 	struct snd_kcontrol *kctl;
406 	struct hdmi_spec *spec = codec->spec;
407 	int err;
408 
409 	kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
410 	if (!kctl)
411 		return -ENOMEM;
412 	kctl->private_value = pin_idx;
413 	kctl->id.device = device;
414 
415 	err = snd_hda_ctl_add(codec, get_pin(spec, pin_idx)->pin_nid, kctl);
416 	if (err < 0)
417 		return err;
418 
419 	get_pin(spec, pin_idx)->eld_ctl = kctl;
420 	return 0;
421 }
422 
423 #ifdef BE_PARANOID
424 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
425 				int *packet_index, int *byte_index)
426 {
427 	int val;
428 
429 	val = snd_hda_codec_read(codec, pin_nid, 0,
430 				 AC_VERB_GET_HDMI_DIP_INDEX, 0);
431 
432 	*packet_index = val >> 5;
433 	*byte_index = val & 0x1f;
434 }
435 #endif
436 
437 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
438 				int packet_index, int byte_index)
439 {
440 	int val;
441 
442 	val = (packet_index << 5) | (byte_index & 0x1f);
443 
444 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
445 }
446 
447 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
448 				unsigned char val)
449 {
450 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
451 }
452 
453 static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
454 {
455 	/* Unmute */
456 	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
457 		snd_hda_codec_write(codec, pin_nid, 0,
458 				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
459 	/* Enable pin out: some machines with GM965 gets broken output when
460 	 * the pin is disabled or changed while using with HDMI
461 	 */
462 	snd_hda_codec_write(codec, pin_nid, 0,
463 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
464 }
465 
466 static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t cvt_nid)
467 {
468 	return 1 + snd_hda_codec_read(codec, cvt_nid, 0,
469 					AC_VERB_GET_CVT_CHAN_COUNT, 0);
470 }
471 
472 static void hdmi_set_channel_count(struct hda_codec *codec,
473 				   hda_nid_t cvt_nid, int chs)
474 {
475 	if (chs != hdmi_get_channel_count(codec, cvt_nid))
476 		snd_hda_codec_write(codec, cvt_nid, 0,
477 				    AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
478 }
479 
480 
481 /*
482  * Channel mapping routines
483  */
484 
485 /*
486  * Compute derived values in channel_allocations[].
487  */
488 static void init_channel_allocations(void)
489 {
490 	int i, j;
491 	struct cea_channel_speaker_allocation *p;
492 
493 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
494 		p = channel_allocations + i;
495 		p->channels = 0;
496 		p->spk_mask = 0;
497 		for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
498 			if (p->speakers[j]) {
499 				p->channels++;
500 				p->spk_mask |= p->speakers[j];
501 			}
502 	}
503 }
504 
505 static int get_channel_allocation_order(int ca)
506 {
507 	int i;
508 
509 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
510 		if (channel_allocations[i].ca_index == ca)
511 			break;
512 	}
513 	return i;
514 }
515 
516 /*
517  * The transformation takes two steps:
518  *
519  *	eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
520  *	      spk_mask => (channel_allocations[])         => ai->CA
521  *
522  * TODO: it could select the wrong CA from multiple candidates.
523 */
524 static int hdmi_channel_allocation(struct hdmi_eld *eld, int channels)
525 {
526 	int i;
527 	int ca = 0;
528 	int spk_mask = 0;
529 	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
530 
531 	/*
532 	 * CA defaults to 0 for basic stereo audio
533 	 */
534 	if (channels <= 2)
535 		return 0;
536 
537 	/*
538 	 * expand ELD's speaker allocation mask
539 	 *
540 	 * ELD tells the speaker mask in a compact(paired) form,
541 	 * expand ELD's notions to match the ones used by Audio InfoFrame.
542 	 */
543 	for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
544 		if (eld->info.spk_alloc & (1 << i))
545 			spk_mask |= eld_speaker_allocation_bits[i];
546 	}
547 
548 	/* search for the first working match in the CA table */
549 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
550 		if (channels == channel_allocations[i].channels &&
551 		    (spk_mask & channel_allocations[i].spk_mask) ==
552 				channel_allocations[i].spk_mask) {
553 			ca = channel_allocations[i].ca_index;
554 			break;
555 		}
556 	}
557 
558 	if (!ca) {
559 		/* if there was no match, select the regular ALSA channel
560 		 * allocation with the matching number of channels */
561 		for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
562 			if (channels == channel_allocations[i].channels) {
563 				ca = channel_allocations[i].ca_index;
564 				break;
565 			}
566 		}
567 	}
568 
569 	snd_print_channel_allocation(eld->info.spk_alloc, buf, sizeof(buf));
570 	snd_printdd("HDMI: select CA 0x%x for %d-channel allocation: %s\n",
571 		    ca, channels, buf);
572 
573 	return ca;
574 }
575 
576 static void hdmi_debug_channel_mapping(struct hda_codec *codec,
577 				       hda_nid_t pin_nid)
578 {
579 #ifdef CONFIG_SND_DEBUG_VERBOSE
580 	int i;
581 	int slot;
582 
583 	for (i = 0; i < 8; i++) {
584 		slot = snd_hda_codec_read(codec, pin_nid, 0,
585 						AC_VERB_GET_HDMI_CHAN_SLOT, i);
586 		printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
587 						slot >> 4, slot & 0xf);
588 	}
589 #endif
590 }
591 
592 
593 static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
594 				       hda_nid_t pin_nid,
595 				       bool non_pcm,
596 				       int ca)
597 {
598 	int i;
599 	int err;
600 	int order;
601 	int non_pcm_mapping[8];
602 
603 	order = get_channel_allocation_order(ca);
604 
605 	if (hdmi_channel_mapping[ca][1] == 0) {
606 		for (i = 0; i < channel_allocations[order].channels; i++)
607 			hdmi_channel_mapping[ca][i] = i | (i << 4);
608 		for (; i < 8; i++)
609 			hdmi_channel_mapping[ca][i] = 0xf | (i << 4);
610 	}
611 
612 	if (non_pcm) {
613 		for (i = 0; i < channel_allocations[order].channels; i++)
614 			non_pcm_mapping[i] = i | (i << 4);
615 		for (; i < 8; i++)
616 			non_pcm_mapping[i] = 0xf | (i << 4);
617 	}
618 
619 	for (i = 0; i < 8; i++) {
620 		err = snd_hda_codec_write(codec, pin_nid, 0,
621 					  AC_VERB_SET_HDMI_CHAN_SLOT,
622 					  non_pcm ? non_pcm_mapping[i] : hdmi_channel_mapping[ca][i]);
623 		if (err) {
624 			snd_printdd(KERN_NOTICE
625 				    "HDMI: channel mapping failed\n");
626 			break;
627 		}
628 	}
629 
630 	hdmi_debug_channel_mapping(codec, pin_nid);
631 }
632 
633 struct channel_map_table {
634 	unsigned char map;		/* ALSA API channel map position */
635 	unsigned char cea_slot;		/* CEA slot value */
636 	int spk_mask;			/* speaker position bit mask */
637 };
638 
639 static struct channel_map_table map_tables[] = {
640 	{ SNDRV_CHMAP_FL,	0x00,	FL },
641 	{ SNDRV_CHMAP_FR,	0x01,	FR },
642 	{ SNDRV_CHMAP_RL,	0x04,	RL },
643 	{ SNDRV_CHMAP_RR,	0x05,	RR },
644 	{ SNDRV_CHMAP_LFE,	0x02,	LFE },
645 	{ SNDRV_CHMAP_FC,	0x03,	FC },
646 	{ SNDRV_CHMAP_RLC,	0x06,	RLC },
647 	{ SNDRV_CHMAP_RRC,	0x07,	RRC },
648 	{} /* terminator */
649 };
650 
651 /* from ALSA API channel position to speaker bit mask */
652 static int to_spk_mask(unsigned char c)
653 {
654 	struct channel_map_table *t = map_tables;
655 	for (; t->map; t++) {
656 		if (t->map == c)
657 			return t->spk_mask;
658 	}
659 	return 0;
660 }
661 
662 /* from ALSA API channel position to CEA slot */
663 static int to_cea_slot(unsigned char c)
664 {
665 	struct channel_map_table *t = map_tables;
666 	for (; t->map; t++) {
667 		if (t->map == c)
668 			return t->cea_slot;
669 	}
670 	return 0x0f;
671 }
672 
673 /* from CEA slot to ALSA API channel position */
674 static int from_cea_slot(unsigned char c)
675 {
676 	struct channel_map_table *t = map_tables;
677 	for (; t->map; t++) {
678 		if (t->cea_slot == c)
679 			return t->map;
680 	}
681 	return 0;
682 }
683 
684 /* from speaker bit mask to ALSA API channel position */
685 static int spk_to_chmap(int spk)
686 {
687 	struct channel_map_table *t = map_tables;
688 	for (; t->map; t++) {
689 		if (t->spk_mask == spk)
690 			return t->map;
691 	}
692 	return 0;
693 }
694 
695 /* get the CA index corresponding to the given ALSA API channel map */
696 static int hdmi_manual_channel_allocation(int chs, unsigned char *map)
697 {
698 	int i, spks = 0, spk_mask = 0;
699 
700 	for (i = 0; i < chs; i++) {
701 		int mask = to_spk_mask(map[i]);
702 		if (mask) {
703 			spk_mask |= mask;
704 			spks++;
705 		}
706 	}
707 
708 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
709 		if ((chs == channel_allocations[i].channels ||
710 		     spks == channel_allocations[i].channels) &&
711 		    (spk_mask & channel_allocations[i].spk_mask) ==
712 				channel_allocations[i].spk_mask)
713 			return channel_allocations[i].ca_index;
714 	}
715 	return -1;
716 }
717 
718 /* set up the channel slots for the given ALSA API channel map */
719 static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
720 					     hda_nid_t pin_nid,
721 					     int chs, unsigned char *map)
722 {
723 	int i;
724 	for (i = 0; i < 8; i++) {
725 		int val, err;
726 		if (i < chs)
727 			val = to_cea_slot(map[i]);
728 		else
729 			val = 0xf;
730 		val |= (i << 4);
731 		err = snd_hda_codec_write(codec, pin_nid, 0,
732 					  AC_VERB_SET_HDMI_CHAN_SLOT, val);
733 		if (err)
734 			return -EINVAL;
735 	}
736 	return 0;
737 }
738 
739 /* store ALSA API channel map from the current default map */
740 static void hdmi_setup_fake_chmap(unsigned char *map, int ca)
741 {
742 	int i;
743 	for (i = 0; i < 8; i++) {
744 		if (i < channel_allocations[ca].channels)
745 			map[i] = from_cea_slot((hdmi_channel_mapping[ca][i] >> 4) & 0x0f);
746 		else
747 			map[i] = 0;
748 	}
749 }
750 
751 static void hdmi_setup_channel_mapping(struct hda_codec *codec,
752 				       hda_nid_t pin_nid, bool non_pcm, int ca,
753 				       int channels, unsigned char *map,
754 				       bool chmap_set)
755 {
756 	if (!non_pcm && chmap_set) {
757 		hdmi_manual_setup_channel_mapping(codec, pin_nid,
758 						  channels, map);
759 	} else {
760 		hdmi_std_setup_channel_mapping(codec, pin_nid, non_pcm, ca);
761 		hdmi_setup_fake_chmap(map, ca);
762 	}
763 }
764 
765 /*
766  * Audio InfoFrame routines
767  */
768 
769 /*
770  * Enable Audio InfoFrame Transmission
771  */
772 static void hdmi_start_infoframe_trans(struct hda_codec *codec,
773 				       hda_nid_t pin_nid)
774 {
775 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
776 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
777 						AC_DIPXMIT_BEST);
778 }
779 
780 /*
781  * Disable Audio InfoFrame Transmission
782  */
783 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
784 				      hda_nid_t pin_nid)
785 {
786 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
787 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
788 						AC_DIPXMIT_DISABLE);
789 }
790 
791 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
792 {
793 #ifdef CONFIG_SND_DEBUG_VERBOSE
794 	int i;
795 	int size;
796 
797 	size = snd_hdmi_get_eld_size(codec, pin_nid);
798 	printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size);
799 
800 	for (i = 0; i < 8; i++) {
801 		size = snd_hda_codec_read(codec, pin_nid, 0,
802 						AC_VERB_GET_HDMI_DIP_SIZE, i);
803 		printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size);
804 	}
805 #endif
806 }
807 
808 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
809 {
810 #ifdef BE_PARANOID
811 	int i, j;
812 	int size;
813 	int pi, bi;
814 	for (i = 0; i < 8; i++) {
815 		size = snd_hda_codec_read(codec, pin_nid, 0,
816 						AC_VERB_GET_HDMI_DIP_SIZE, i);
817 		if (size == 0)
818 			continue;
819 
820 		hdmi_set_dip_index(codec, pin_nid, i, 0x0);
821 		for (j = 1; j < 1000; j++) {
822 			hdmi_write_dip_byte(codec, pin_nid, 0x0);
823 			hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
824 			if (pi != i)
825 				snd_printd(KERN_INFO "dip index %d: %d != %d\n",
826 						bi, pi, i);
827 			if (bi == 0) /* byte index wrapped around */
828 				break;
829 		}
830 		snd_printd(KERN_INFO
831 			"HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
832 			i, size, j);
833 	}
834 #endif
835 }
836 
837 static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
838 {
839 	u8 *bytes = (u8 *)hdmi_ai;
840 	u8 sum = 0;
841 	int i;
842 
843 	hdmi_ai->checksum = 0;
844 
845 	for (i = 0; i < sizeof(*hdmi_ai); i++)
846 		sum += bytes[i];
847 
848 	hdmi_ai->checksum = -sum;
849 }
850 
851 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
852 				      hda_nid_t pin_nid,
853 				      u8 *dip, int size)
854 {
855 	int i;
856 
857 	hdmi_debug_dip_size(codec, pin_nid);
858 	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
859 
860 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
861 	for (i = 0; i < size; i++)
862 		hdmi_write_dip_byte(codec, pin_nid, dip[i]);
863 }
864 
865 static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
866 				    u8 *dip, int size)
867 {
868 	u8 val;
869 	int i;
870 
871 	if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
872 							    != AC_DIPXMIT_BEST)
873 		return false;
874 
875 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
876 	for (i = 0; i < size; i++) {
877 		val = snd_hda_codec_read(codec, pin_nid, 0,
878 					 AC_VERB_GET_HDMI_DIP_DATA, 0);
879 		if (val != dip[i])
880 			return false;
881 	}
882 
883 	return true;
884 }
885 
886 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
887 				       struct hdmi_spec_per_pin *per_pin,
888 				       bool non_pcm)
889 {
890 	hda_nid_t pin_nid = per_pin->pin_nid;
891 	int channels = per_pin->channels;
892 	struct hdmi_eld *eld;
893 	int ca;
894 	union audio_infoframe ai;
895 
896 	if (!channels)
897 		return;
898 
899 	if (is_haswell(codec))
900 		snd_hda_codec_write(codec, pin_nid, 0,
901 					    AC_VERB_SET_AMP_GAIN_MUTE,
902 					    AMP_OUT_UNMUTE);
903 
904 	eld = &per_pin->sink_eld;
905 	if (!eld->monitor_present)
906 		return;
907 
908 	if (!non_pcm && per_pin->chmap_set)
909 		ca = hdmi_manual_channel_allocation(channels, per_pin->chmap);
910 	else
911 		ca = hdmi_channel_allocation(eld, channels);
912 	if (ca < 0)
913 		ca = 0;
914 
915 	memset(&ai, 0, sizeof(ai));
916 	if (eld->info.conn_type == 0) { /* HDMI */
917 		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
918 
919 		hdmi_ai->type		= 0x84;
920 		hdmi_ai->ver		= 0x01;
921 		hdmi_ai->len		= 0x0a;
922 		hdmi_ai->CC02_CT47	= channels - 1;
923 		hdmi_ai->CA		= ca;
924 		hdmi_checksum_audio_infoframe(hdmi_ai);
925 	} else if (eld->info.conn_type == 1) { /* DisplayPort */
926 		struct dp_audio_infoframe *dp_ai = &ai.dp;
927 
928 		dp_ai->type		= 0x84;
929 		dp_ai->len		= 0x1b;
930 		dp_ai->ver		= 0x11 << 2;
931 		dp_ai->CC02_CT47	= channels - 1;
932 		dp_ai->CA		= ca;
933 	} else {
934 		snd_printd("HDMI: unknown connection type at pin %d\n",
935 			    pin_nid);
936 		return;
937 	}
938 
939 	/*
940 	 * always configure channel mapping, it may have been changed by the
941 	 * user in the meantime
942 	 */
943 	hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
944 				   channels, per_pin->chmap,
945 				   per_pin->chmap_set);
946 
947 	/*
948 	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
949 	 * sizeof(*dp_ai) to avoid partial match/update problems when
950 	 * the user switches between HDMI/DP monitors.
951 	 */
952 	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
953 					sizeof(ai))) {
954 		snd_printdd("hdmi_setup_audio_infoframe: "
955 			    "pin=%d channels=%d\n",
956 			    pin_nid,
957 			    channels);
958 		hdmi_stop_infoframe_trans(codec, pin_nid);
959 		hdmi_fill_audio_infoframe(codec, pin_nid,
960 					    ai.bytes, sizeof(ai));
961 		hdmi_start_infoframe_trans(codec, pin_nid);
962 	}
963 
964 	per_pin->non_pcm = non_pcm;
965 }
966 
967 
968 /*
969  * Unsolicited events
970  */
971 
972 static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
973 
974 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
975 {
976 	struct hdmi_spec *spec = codec->spec;
977 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
978 	int pin_nid;
979 	int pin_idx;
980 	struct hda_jack_tbl *jack;
981 	int dev_entry = (res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
982 
983 	jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
984 	if (!jack)
985 		return;
986 	pin_nid = jack->nid;
987 	jack->jack_dirty = 1;
988 
989 	_snd_printd(SND_PR_VERBOSE,
990 		"HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
991 		codec->addr, pin_nid, dev_entry, !!(res & AC_UNSOL_RES_IA),
992 		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
993 
994 	pin_idx = pin_nid_to_pin_index(spec, pin_nid);
995 	if (pin_idx < 0)
996 		return;
997 
998 	hdmi_present_sense(get_pin(spec, pin_idx), 1);
999 	snd_hda_jack_report_sync(codec);
1000 }
1001 
1002 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
1003 {
1004 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1005 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1006 	int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
1007 	int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
1008 
1009 	printk(KERN_INFO
1010 		"HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
1011 		codec->addr,
1012 		tag,
1013 		subtag,
1014 		cp_state,
1015 		cp_ready);
1016 
1017 	/* TODO */
1018 	if (cp_state)
1019 		;
1020 	if (cp_ready)
1021 		;
1022 }
1023 
1024 
1025 static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
1026 {
1027 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1028 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1029 
1030 	if (!snd_hda_jack_tbl_get_from_tag(codec, tag)) {
1031 		snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag);
1032 		return;
1033 	}
1034 
1035 	if (subtag == 0)
1036 		hdmi_intrinsic_event(codec, res);
1037 	else
1038 		hdmi_non_intrinsic_event(codec, res);
1039 }
1040 
1041 static void haswell_verify_D0(struct hda_codec *codec,
1042 		hda_nid_t cvt_nid, hda_nid_t nid)
1043 {
1044 	int pwr;
1045 
1046 	/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
1047 	 * thus pins could only choose converter 0 for use. Make sure the
1048 	 * converters are in correct power state */
1049 	if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
1050 		snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
1051 
1052 	if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
1053 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
1054 				    AC_PWRST_D0);
1055 		msleep(40);
1056 		pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
1057 		pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
1058 		snd_printd("Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
1059 	}
1060 }
1061 
1062 /*
1063  * Callbacks
1064  */
1065 
1066 /* HBR should be Non-PCM, 8 channels */
1067 #define is_hbr_format(format) \
1068 	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
1069 
1070 static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
1071 			      hda_nid_t pin_nid, u32 stream_tag, int format)
1072 {
1073 	int pinctl;
1074 	int new_pinctl = 0;
1075 
1076 	if (is_haswell(codec))
1077 		haswell_verify_D0(codec, cvt_nid, pin_nid);
1078 
1079 	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
1080 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1081 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1082 
1083 		new_pinctl = pinctl & ~AC_PINCTL_EPT;
1084 		if (is_hbr_format(format))
1085 			new_pinctl |= AC_PINCTL_EPT_HBR;
1086 		else
1087 			new_pinctl |= AC_PINCTL_EPT_NATIVE;
1088 
1089 		snd_printdd("hdmi_setup_stream: "
1090 			    "NID=0x%x, %spinctl=0x%x\n",
1091 			    pin_nid,
1092 			    pinctl == new_pinctl ? "" : "new-",
1093 			    new_pinctl);
1094 
1095 		if (pinctl != new_pinctl)
1096 			snd_hda_codec_write(codec, pin_nid, 0,
1097 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
1098 					    new_pinctl);
1099 
1100 	}
1101 	if (is_hbr_format(format) && !new_pinctl) {
1102 		snd_printdd("hdmi_setup_stream: HBR is not supported\n");
1103 		return -EINVAL;
1104 	}
1105 
1106 	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
1107 	return 0;
1108 }
1109 
1110 static int hdmi_choose_cvt(struct hda_codec *codec,
1111 			int pin_idx, int *cvt_id, int *mux_id)
1112 {
1113 	struct hdmi_spec *spec = codec->spec;
1114 	struct hdmi_spec_per_pin *per_pin;
1115 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1116 	int cvt_idx, mux_idx = 0;
1117 
1118 	per_pin = get_pin(spec, pin_idx);
1119 
1120 	/* Dynamically assign converter to stream */
1121 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1122 		per_cvt = get_cvt(spec, cvt_idx);
1123 
1124 		/* Must not already be assigned */
1125 		if (per_cvt->assigned)
1126 			continue;
1127 		/* Must be in pin's mux's list of converters */
1128 		for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
1129 			if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
1130 				break;
1131 		/* Not in mux list */
1132 		if (mux_idx == per_pin->num_mux_nids)
1133 			continue;
1134 		break;
1135 	}
1136 
1137 	/* No free converters */
1138 	if (cvt_idx == spec->num_cvts)
1139 		return -ENODEV;
1140 
1141 	if (cvt_id)
1142 		*cvt_id = cvt_idx;
1143 	if (mux_id)
1144 		*mux_id = mux_idx;
1145 
1146 	return 0;
1147 }
1148 
1149 static void haswell_config_cvts(struct hda_codec *codec,
1150 			hda_nid_t pin_nid, int mux_idx)
1151 {
1152 	struct hdmi_spec *spec = codec->spec;
1153 	hda_nid_t nid, end_nid;
1154 	int cvt_idx, curr;
1155 	struct hdmi_spec_per_cvt *per_cvt;
1156 
1157 	/* configure all pins, including "no physical connection" ones */
1158 	end_nid = codec->start_nid + codec->num_nodes;
1159 	for (nid = codec->start_nid; nid < end_nid; nid++) {
1160 		unsigned int wid_caps = get_wcaps(codec, nid);
1161 		unsigned int wid_type = get_wcaps_type(wid_caps);
1162 
1163 		if (wid_type != AC_WID_PIN)
1164 			continue;
1165 
1166 		if (nid == pin_nid)
1167 			continue;
1168 
1169 		curr = snd_hda_codec_read(codec, nid, 0,
1170 					  AC_VERB_GET_CONNECT_SEL, 0);
1171 		if (curr != mux_idx)
1172 			continue;
1173 
1174 		/* choose an unassigned converter. The conveters in the
1175 		 * connection list are in the same order as in the codec.
1176 		 */
1177 		for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1178 			per_cvt = get_cvt(spec, cvt_idx);
1179 			if (!per_cvt->assigned) {
1180 				snd_printdd("choose cvt %d for pin nid %d\n",
1181 					cvt_idx, nid);
1182 				snd_hda_codec_write_cache(codec, nid, 0,
1183 					    AC_VERB_SET_CONNECT_SEL,
1184 					    cvt_idx);
1185 				break;
1186 			}
1187 		}
1188 	}
1189 }
1190 
1191 /*
1192  * HDA PCM callbacks
1193  */
1194 static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
1195 			 struct hda_codec *codec,
1196 			 struct snd_pcm_substream *substream)
1197 {
1198 	struct hdmi_spec *spec = codec->spec;
1199 	struct snd_pcm_runtime *runtime = substream->runtime;
1200 	int pin_idx, cvt_idx, mux_idx = 0;
1201 	struct hdmi_spec_per_pin *per_pin;
1202 	struct hdmi_eld *eld;
1203 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1204 	int err;
1205 
1206 	/* Validate hinfo */
1207 	pin_idx = hinfo_to_pin_index(spec, hinfo);
1208 	if (snd_BUG_ON(pin_idx < 0))
1209 		return -EINVAL;
1210 	per_pin = get_pin(spec, pin_idx);
1211 	eld = &per_pin->sink_eld;
1212 
1213 	err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx, &mux_idx);
1214 	if (err < 0)
1215 		return err;
1216 
1217 	per_cvt = get_cvt(spec, cvt_idx);
1218 	/* Claim converter */
1219 	per_cvt->assigned = 1;
1220 	hinfo->nid = per_cvt->cvt_nid;
1221 
1222 	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1223 			    AC_VERB_SET_CONNECT_SEL,
1224 			    mux_idx);
1225 
1226 	/* configure unused pins to choose other converters */
1227 	if (is_haswell(codec))
1228 		haswell_config_cvts(codec, per_pin->pin_nid, mux_idx);
1229 
1230 	snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
1231 
1232 	/* Initially set the converter's capabilities */
1233 	hinfo->channels_min = per_cvt->channels_min;
1234 	hinfo->channels_max = per_cvt->channels_max;
1235 	hinfo->rates = per_cvt->rates;
1236 	hinfo->formats = per_cvt->formats;
1237 	hinfo->maxbps = per_cvt->maxbps;
1238 
1239 	/* Restrict capabilities by ELD if this isn't disabled */
1240 	if (!static_hdmi_pcm && eld->eld_valid) {
1241 		snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
1242 		if (hinfo->channels_min > hinfo->channels_max ||
1243 		    !hinfo->rates || !hinfo->formats) {
1244 			per_cvt->assigned = 0;
1245 			hinfo->nid = 0;
1246 			snd_hda_spdif_ctls_unassign(codec, pin_idx);
1247 			return -ENODEV;
1248 		}
1249 	}
1250 
1251 	/* Store the updated parameters */
1252 	runtime->hw.channels_min = hinfo->channels_min;
1253 	runtime->hw.channels_max = hinfo->channels_max;
1254 	runtime->hw.formats = hinfo->formats;
1255 	runtime->hw.rates = hinfo->rates;
1256 
1257 	snd_pcm_hw_constraint_step(substream->runtime, 0,
1258 				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1259 	return 0;
1260 }
1261 
1262 /*
1263  * HDA/HDMI auto parsing
1264  */
1265 static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
1266 {
1267 	struct hdmi_spec *spec = codec->spec;
1268 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1269 	hda_nid_t pin_nid = per_pin->pin_nid;
1270 
1271 	if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
1272 		snd_printk(KERN_WARNING
1273 			   "HDMI: pin %d wcaps %#x "
1274 			   "does not support connection list\n",
1275 			   pin_nid, get_wcaps(codec, pin_nid));
1276 		return -EINVAL;
1277 	}
1278 
1279 	per_pin->num_mux_nids = snd_hda_get_connections(codec, pin_nid,
1280 							per_pin->mux_nids,
1281 							HDA_MAX_CONNECTIONS);
1282 
1283 	return 0;
1284 }
1285 
1286 static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
1287 {
1288 	struct hda_codec *codec = per_pin->codec;
1289 	struct hdmi_spec *spec = codec->spec;
1290 	struct hdmi_eld *eld = &spec->temp_eld;
1291 	struct hdmi_eld *pin_eld = &per_pin->sink_eld;
1292 	hda_nid_t pin_nid = per_pin->pin_nid;
1293 	/*
1294 	 * Always execute a GetPinSense verb here, even when called from
1295 	 * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
1296 	 * response's PD bit is not the real PD value, but indicates that
1297 	 * the real PD value changed. An older version of the HD-audio
1298 	 * specification worked this way. Hence, we just ignore the data in
1299 	 * the unsolicited response to avoid custom WARs.
1300 	 */
1301 	int present = snd_hda_pin_sense(codec, pin_nid);
1302 	bool update_eld = false;
1303 	bool eld_changed = false;
1304 
1305 	pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
1306 	if (pin_eld->monitor_present)
1307 		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
1308 	else
1309 		eld->eld_valid = false;
1310 
1311 	_snd_printd(SND_PR_VERBOSE,
1312 		"HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
1313 		codec->addr, pin_nid, pin_eld->monitor_present, eld->eld_valid);
1314 
1315 	if (eld->eld_valid) {
1316 		if (snd_hdmi_get_eld(codec, pin_nid, eld->eld_buffer,
1317 						     &eld->eld_size) < 0)
1318 			eld->eld_valid = false;
1319 		else {
1320 			memset(&eld->info, 0, sizeof(struct parsed_hdmi_eld));
1321 			if (snd_hdmi_parse_eld(&eld->info, eld->eld_buffer,
1322 						    eld->eld_size) < 0)
1323 				eld->eld_valid = false;
1324 		}
1325 
1326 		if (eld->eld_valid) {
1327 			snd_hdmi_show_eld(&eld->info);
1328 			update_eld = true;
1329 		}
1330 		else if (repoll) {
1331 			queue_delayed_work(codec->bus->workq,
1332 					   &per_pin->work,
1333 					   msecs_to_jiffies(300));
1334 			return;
1335 		}
1336 	}
1337 
1338 	mutex_lock(&pin_eld->lock);
1339 	if (pin_eld->eld_valid && !eld->eld_valid) {
1340 		update_eld = true;
1341 		eld_changed = true;
1342 	}
1343 	if (update_eld) {
1344 		bool old_eld_valid = pin_eld->eld_valid;
1345 		pin_eld->eld_valid = eld->eld_valid;
1346 		eld_changed = pin_eld->eld_size != eld->eld_size ||
1347 			      memcmp(pin_eld->eld_buffer, eld->eld_buffer,
1348 				     eld->eld_size) != 0;
1349 		if (eld_changed)
1350 			memcpy(pin_eld->eld_buffer, eld->eld_buffer,
1351 			       eld->eld_size);
1352 		pin_eld->eld_size = eld->eld_size;
1353 		pin_eld->info = eld->info;
1354 
1355 		/* Haswell-specific workaround: re-setup when the transcoder is
1356 		 * changed during the stream playback
1357 		 */
1358 		if (is_haswell(codec) &&
1359 		    eld->eld_valid && !old_eld_valid && per_pin->setup)
1360 			hdmi_setup_audio_infoframe(codec, per_pin,
1361 						   per_pin->non_pcm);
1362 	}
1363 	mutex_unlock(&pin_eld->lock);
1364 
1365 	if (eld_changed)
1366 		snd_ctl_notify(codec->bus->card,
1367 			       SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
1368 			       &per_pin->eld_ctl->id);
1369 }
1370 
1371 static void hdmi_repoll_eld(struct work_struct *work)
1372 {
1373 	struct hdmi_spec_per_pin *per_pin =
1374 	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
1375 
1376 	if (per_pin->repoll_count++ > 6)
1377 		per_pin->repoll_count = 0;
1378 
1379 	hdmi_present_sense(per_pin, per_pin->repoll_count);
1380 }
1381 
1382 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1383 					     hda_nid_t nid);
1384 
1385 static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
1386 {
1387 	struct hdmi_spec *spec = codec->spec;
1388 	unsigned int caps, config;
1389 	int pin_idx;
1390 	struct hdmi_spec_per_pin *per_pin;
1391 	int err;
1392 
1393 	caps = snd_hda_query_pin_caps(codec, pin_nid);
1394 	if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
1395 		return 0;
1396 
1397 	config = snd_hda_codec_get_pincfg(codec, pin_nid);
1398 	if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
1399 		return 0;
1400 
1401 	if (is_haswell(codec))
1402 		intel_haswell_fixup_connect_list(codec, pin_nid);
1403 
1404 	pin_idx = spec->num_pins;
1405 	per_pin = snd_array_new(&spec->pins);
1406 	if (!per_pin)
1407 		return -ENOMEM;
1408 
1409 	per_pin->pin_nid = pin_nid;
1410 	per_pin->non_pcm = false;
1411 
1412 	err = hdmi_read_pin_conn(codec, pin_idx);
1413 	if (err < 0)
1414 		return err;
1415 
1416 	spec->num_pins++;
1417 
1418 	return 0;
1419 }
1420 
1421 static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1422 {
1423 	struct hdmi_spec *spec = codec->spec;
1424 	struct hdmi_spec_per_cvt *per_cvt;
1425 	unsigned int chans;
1426 	int err;
1427 
1428 	chans = get_wcaps(codec, cvt_nid);
1429 	chans = get_wcaps_channels(chans);
1430 
1431 	per_cvt = snd_array_new(&spec->cvts);
1432 	if (!per_cvt)
1433 		return -ENOMEM;
1434 
1435 	per_cvt->cvt_nid = cvt_nid;
1436 	per_cvt->channels_min = 2;
1437 	if (chans <= 16) {
1438 		per_cvt->channels_max = chans;
1439 		if (chans > spec->channels_max)
1440 			spec->channels_max = chans;
1441 	}
1442 
1443 	err = snd_hda_query_supported_pcm(codec, cvt_nid,
1444 					  &per_cvt->rates,
1445 					  &per_cvt->formats,
1446 					  &per_cvt->maxbps);
1447 	if (err < 0)
1448 		return err;
1449 
1450 	if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
1451 		spec->cvt_nids[spec->num_cvts] = cvt_nid;
1452 	spec->num_cvts++;
1453 
1454 	return 0;
1455 }
1456 
1457 static int hdmi_parse_codec(struct hda_codec *codec)
1458 {
1459 	hda_nid_t nid;
1460 	int i, nodes;
1461 
1462 	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
1463 	if (!nid || nodes < 0) {
1464 		snd_printk(KERN_WARNING "HDMI: failed to get afg sub nodes\n");
1465 		return -EINVAL;
1466 	}
1467 
1468 	for (i = 0; i < nodes; i++, nid++) {
1469 		unsigned int caps;
1470 		unsigned int type;
1471 
1472 		caps = get_wcaps(codec, nid);
1473 		type = get_wcaps_type(caps);
1474 
1475 		if (!(caps & AC_WCAP_DIGITAL))
1476 			continue;
1477 
1478 		switch (type) {
1479 		case AC_WID_AUD_OUT:
1480 			hdmi_add_cvt(codec, nid);
1481 			break;
1482 		case AC_WID_PIN:
1483 			hdmi_add_pin(codec, nid);
1484 			break;
1485 		}
1486 	}
1487 
1488 #ifdef CONFIG_PM
1489 	/* We're seeing some problems with unsolicited hot plug events on
1490 	 * PantherPoint after S3, if this is not enabled */
1491 	if (codec->vendor_id == 0x80862806)
1492 		codec->bus->power_keep_link_on = 1;
1493 	/*
1494 	 * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event
1495 	 * can be lost and presence sense verb will become inaccurate if the
1496 	 * HDA link is powered off at hot plug or hw initialization time.
1497 	 */
1498 	else if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) &
1499 	      AC_PWRST_EPSS))
1500 		codec->bus->power_keep_link_on = 1;
1501 #endif
1502 
1503 	return 0;
1504 }
1505 
1506 /*
1507  */
1508 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1509 {
1510 	struct hda_spdif_out *spdif;
1511 	bool non_pcm;
1512 
1513 	mutex_lock(&codec->spdif_mutex);
1514 	spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
1515 	non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1516 	mutex_unlock(&codec->spdif_mutex);
1517 	return non_pcm;
1518 }
1519 
1520 
1521 /*
1522  * HDMI callbacks
1523  */
1524 
1525 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1526 					   struct hda_codec *codec,
1527 					   unsigned int stream_tag,
1528 					   unsigned int format,
1529 					   struct snd_pcm_substream *substream)
1530 {
1531 	hda_nid_t cvt_nid = hinfo->nid;
1532 	struct hdmi_spec *spec = codec->spec;
1533 	int pin_idx = hinfo_to_pin_index(spec, hinfo);
1534 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1535 	hda_nid_t pin_nid = per_pin->pin_nid;
1536 	bool non_pcm;
1537 
1538 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1539 	per_pin->channels = substream->runtime->channels;
1540 	per_pin->setup = true;
1541 
1542 	hdmi_set_channel_count(codec, cvt_nid, substream->runtime->channels);
1543 
1544 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1545 
1546 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
1547 }
1548 
1549 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1550 					     struct hda_codec *codec,
1551 					     struct snd_pcm_substream *substream)
1552 {
1553 	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1554 	return 0;
1555 }
1556 
1557 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
1558 			  struct hda_codec *codec,
1559 			  struct snd_pcm_substream *substream)
1560 {
1561 	struct hdmi_spec *spec = codec->spec;
1562 	int cvt_idx, pin_idx;
1563 	struct hdmi_spec_per_cvt *per_cvt;
1564 	struct hdmi_spec_per_pin *per_pin;
1565 
1566 	if (hinfo->nid) {
1567 		cvt_idx = cvt_nid_to_cvt_index(spec, hinfo->nid);
1568 		if (snd_BUG_ON(cvt_idx < 0))
1569 			return -EINVAL;
1570 		per_cvt = get_cvt(spec, cvt_idx);
1571 
1572 		snd_BUG_ON(!per_cvt->assigned);
1573 		per_cvt->assigned = 0;
1574 		hinfo->nid = 0;
1575 
1576 		pin_idx = hinfo_to_pin_index(spec, hinfo);
1577 		if (snd_BUG_ON(pin_idx < 0))
1578 			return -EINVAL;
1579 		per_pin = get_pin(spec, pin_idx);
1580 
1581 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
1582 		per_pin->chmap_set = false;
1583 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1584 
1585 		per_pin->setup = false;
1586 		per_pin->channels = 0;
1587 	}
1588 
1589 	return 0;
1590 }
1591 
1592 static const struct hda_pcm_ops generic_ops = {
1593 	.open = hdmi_pcm_open,
1594 	.close = hdmi_pcm_close,
1595 	.prepare = generic_hdmi_playback_pcm_prepare,
1596 	.cleanup = generic_hdmi_playback_pcm_cleanup,
1597 };
1598 
1599 /*
1600  * ALSA API channel-map control callbacks
1601  */
1602 static int hdmi_chmap_ctl_info(struct snd_kcontrol *kcontrol,
1603 			       struct snd_ctl_elem_info *uinfo)
1604 {
1605 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1606 	struct hda_codec *codec = info->private_data;
1607 	struct hdmi_spec *spec = codec->spec;
1608 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1609 	uinfo->count = spec->channels_max;
1610 	uinfo->value.integer.min = 0;
1611 	uinfo->value.integer.max = SNDRV_CHMAP_LAST;
1612 	return 0;
1613 }
1614 
1615 static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1616 			      unsigned int size, unsigned int __user *tlv)
1617 {
1618 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1619 	struct hda_codec *codec = info->private_data;
1620 	struct hdmi_spec *spec = codec->spec;
1621 	const unsigned int valid_mask =
1622 		FL | FR | RL | RR | LFE | FC | RLC | RRC;
1623 	unsigned int __user *dst;
1624 	int chs, count = 0;
1625 
1626 	if (size < 8)
1627 		return -ENOMEM;
1628 	if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
1629 		return -EFAULT;
1630 	size -= 8;
1631 	dst = tlv + 2;
1632 	for (chs = 2; chs <= spec->channels_max; chs++) {
1633 		int i, c;
1634 		struct cea_channel_speaker_allocation *cap;
1635 		cap = channel_allocations;
1636 		for (i = 0; i < ARRAY_SIZE(channel_allocations); i++, cap++) {
1637 			int chs_bytes = chs * 4;
1638 			if (cap->channels != chs)
1639 				continue;
1640 			if (cap->spk_mask & ~valid_mask)
1641 				continue;
1642 			if (size < 8)
1643 				return -ENOMEM;
1644 			if (put_user(SNDRV_CTL_TLVT_CHMAP_VAR, dst) ||
1645 			    put_user(chs_bytes, dst + 1))
1646 				return -EFAULT;
1647 			dst += 2;
1648 			size -= 8;
1649 			count += 8;
1650 			if (size < chs_bytes)
1651 				return -ENOMEM;
1652 			size -= chs_bytes;
1653 			count += chs_bytes;
1654 			for (c = 7; c >= 0; c--) {
1655 				int spk = cap->speakers[c];
1656 				if (!spk)
1657 					continue;
1658 				if (put_user(spk_to_chmap(spk), dst))
1659 					return -EFAULT;
1660 				dst++;
1661 			}
1662 		}
1663 	}
1664 	if (put_user(count, tlv + 1))
1665 		return -EFAULT;
1666 	return 0;
1667 }
1668 
1669 static int hdmi_chmap_ctl_get(struct snd_kcontrol *kcontrol,
1670 			      struct snd_ctl_elem_value *ucontrol)
1671 {
1672 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1673 	struct hda_codec *codec = info->private_data;
1674 	struct hdmi_spec *spec = codec->spec;
1675 	int pin_idx = kcontrol->private_value;
1676 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1677 	int i;
1678 
1679 	for (i = 0; i < ARRAY_SIZE(per_pin->chmap); i++)
1680 		ucontrol->value.integer.value[i] = per_pin->chmap[i];
1681 	return 0;
1682 }
1683 
1684 static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
1685 			      struct snd_ctl_elem_value *ucontrol)
1686 {
1687 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1688 	struct hda_codec *codec = info->private_data;
1689 	struct hdmi_spec *spec = codec->spec;
1690 	int pin_idx = kcontrol->private_value;
1691 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1692 	unsigned int ctl_idx;
1693 	struct snd_pcm_substream *substream;
1694 	unsigned char chmap[8];
1695 	int i, ca, prepared = 0;
1696 
1697 	ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1698 	substream = snd_pcm_chmap_substream(info, ctl_idx);
1699 	if (!substream || !substream->runtime)
1700 		return 0; /* just for avoiding error from alsactl restore */
1701 	switch (substream->runtime->status->state) {
1702 	case SNDRV_PCM_STATE_OPEN:
1703 	case SNDRV_PCM_STATE_SETUP:
1704 		break;
1705 	case SNDRV_PCM_STATE_PREPARED:
1706 		prepared = 1;
1707 		break;
1708 	default:
1709 		return -EBUSY;
1710 	}
1711 	memset(chmap, 0, sizeof(chmap));
1712 	for (i = 0; i < ARRAY_SIZE(chmap); i++)
1713 		chmap[i] = ucontrol->value.integer.value[i];
1714 	if (!memcmp(chmap, per_pin->chmap, sizeof(chmap)))
1715 		return 0;
1716 	ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap);
1717 	if (ca < 0)
1718 		return -EINVAL;
1719 	per_pin->chmap_set = true;
1720 	memcpy(per_pin->chmap, chmap, sizeof(chmap));
1721 	if (prepared)
1722 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
1723 
1724 	return 0;
1725 }
1726 
1727 static int generic_hdmi_build_pcms(struct hda_codec *codec)
1728 {
1729 	struct hdmi_spec *spec = codec->spec;
1730 	int pin_idx;
1731 
1732 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1733 		struct hda_pcm *info;
1734 		struct hda_pcm_stream *pstr;
1735 		struct hdmi_spec_per_pin *per_pin;
1736 
1737 		per_pin = get_pin(spec, pin_idx);
1738 		sprintf(per_pin->pcm_name, "HDMI %d", pin_idx);
1739 		info = snd_array_new(&spec->pcm_rec);
1740 		if (!info)
1741 			return -ENOMEM;
1742 		info->name = per_pin->pcm_name;
1743 		info->pcm_type = HDA_PCM_TYPE_HDMI;
1744 		info->own_chmap = true;
1745 
1746 		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
1747 		pstr->substreams = 1;
1748 		pstr->ops = generic_ops;
1749 		/* other pstr fields are set in open */
1750 	}
1751 
1752 	codec->num_pcms = spec->num_pins;
1753 	codec->pcm_info = spec->pcm_rec.list;
1754 
1755 	return 0;
1756 }
1757 
1758 static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
1759 {
1760 	char hdmi_str[32] = "HDMI/DP";
1761 	struct hdmi_spec *spec = codec->spec;
1762 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1763 	int pcmdev = get_pcm_rec(spec, pin_idx)->device;
1764 
1765 	if (pcmdev > 0)
1766 		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
1767 	if (!is_jack_detectable(codec, per_pin->pin_nid))
1768 		strncat(hdmi_str, " Phantom",
1769 			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
1770 
1771 	return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str, 0);
1772 }
1773 
1774 static int generic_hdmi_build_controls(struct hda_codec *codec)
1775 {
1776 	struct hdmi_spec *spec = codec->spec;
1777 	int err;
1778 	int pin_idx;
1779 
1780 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1781 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1782 
1783 		err = generic_hdmi_build_jack(codec, pin_idx);
1784 		if (err < 0)
1785 			return err;
1786 
1787 		err = snd_hda_create_dig_out_ctls(codec,
1788 						  per_pin->pin_nid,
1789 						  per_pin->mux_nids[0],
1790 						  HDA_PCM_TYPE_HDMI);
1791 		if (err < 0)
1792 			return err;
1793 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
1794 
1795 		/* add control for ELD Bytes */
1796 		err = hdmi_create_eld_ctl(codec, pin_idx,
1797 					  get_pcm_rec(spec, pin_idx)->device);
1798 
1799 		if (err < 0)
1800 			return err;
1801 
1802 		hdmi_present_sense(per_pin, 0);
1803 	}
1804 
1805 	/* add channel maps */
1806 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1807 		struct snd_pcm_chmap *chmap;
1808 		struct snd_kcontrol *kctl;
1809 		int i;
1810 
1811 		if (!codec->pcm_info[pin_idx].pcm)
1812 			break;
1813 		err = snd_pcm_add_chmap_ctls(codec->pcm_info[pin_idx].pcm,
1814 					     SNDRV_PCM_STREAM_PLAYBACK,
1815 					     NULL, 0, pin_idx, &chmap);
1816 		if (err < 0)
1817 			return err;
1818 		/* override handlers */
1819 		chmap->private_data = codec;
1820 		kctl = chmap->kctl;
1821 		for (i = 0; i < kctl->count; i++)
1822 			kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
1823 		kctl->info = hdmi_chmap_ctl_info;
1824 		kctl->get = hdmi_chmap_ctl_get;
1825 		kctl->put = hdmi_chmap_ctl_put;
1826 		kctl->tlv.c = hdmi_chmap_ctl_tlv;
1827 	}
1828 
1829 	return 0;
1830 }
1831 
1832 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
1833 {
1834 	struct hdmi_spec *spec = codec->spec;
1835 	int pin_idx;
1836 
1837 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1838 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1839 		struct hdmi_eld *eld = &per_pin->sink_eld;
1840 
1841 		per_pin->codec = codec;
1842 		mutex_init(&eld->lock);
1843 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
1844 		snd_hda_eld_proc_new(codec, eld, pin_idx);
1845 	}
1846 	return 0;
1847 }
1848 
1849 static int generic_hdmi_init(struct hda_codec *codec)
1850 {
1851 	struct hdmi_spec *spec = codec->spec;
1852 	int pin_idx;
1853 
1854 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1855 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1856 		hda_nid_t pin_nid = per_pin->pin_nid;
1857 
1858 		hdmi_init_pin(codec, pin_nid);
1859 		snd_hda_jack_detect_enable(codec, pin_nid, pin_nid);
1860 	}
1861 	return 0;
1862 }
1863 
1864 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
1865 {
1866 	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
1867 	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
1868 	snd_array_init(&spec->pcm_rec, sizeof(struct hda_pcm), nums);
1869 }
1870 
1871 static void hdmi_array_free(struct hdmi_spec *spec)
1872 {
1873 	snd_array_free(&spec->pins);
1874 	snd_array_free(&spec->cvts);
1875 	snd_array_free(&spec->pcm_rec);
1876 }
1877 
1878 static void generic_hdmi_free(struct hda_codec *codec)
1879 {
1880 	struct hdmi_spec *spec = codec->spec;
1881 	int pin_idx;
1882 
1883 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1884 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1885 		struct hdmi_eld *eld = &per_pin->sink_eld;
1886 
1887 		cancel_delayed_work(&per_pin->work);
1888 		snd_hda_eld_proc_free(codec, eld);
1889 	}
1890 
1891 	flush_workqueue(codec->bus->workq);
1892 	hdmi_array_free(spec);
1893 	kfree(spec);
1894 }
1895 
1896 #ifdef CONFIG_PM
1897 static int generic_hdmi_resume(struct hda_codec *codec)
1898 {
1899 	struct hdmi_spec *spec = codec->spec;
1900 	int pin_idx;
1901 
1902 	generic_hdmi_init(codec);
1903 	snd_hda_codec_resume_amp(codec);
1904 	snd_hda_codec_resume_cache(codec);
1905 
1906 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1907 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1908 		hdmi_present_sense(per_pin, 1);
1909 	}
1910 	return 0;
1911 }
1912 #endif
1913 
1914 static const struct hda_codec_ops generic_hdmi_patch_ops = {
1915 	.init			= generic_hdmi_init,
1916 	.free			= generic_hdmi_free,
1917 	.build_pcms		= generic_hdmi_build_pcms,
1918 	.build_controls		= generic_hdmi_build_controls,
1919 	.unsol_event		= hdmi_unsol_event,
1920 #ifdef CONFIG_PM
1921 	.resume			= generic_hdmi_resume,
1922 #endif
1923 };
1924 
1925 
1926 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1927 					     hda_nid_t nid)
1928 {
1929 	struct hdmi_spec *spec = codec->spec;
1930 	hda_nid_t conns[4];
1931 	int nconns;
1932 
1933 	nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
1934 	if (nconns == spec->num_cvts &&
1935 	    !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
1936 		return;
1937 
1938 	/* override pins connection list */
1939 	snd_printdd("hdmi: haswell: override pin connection 0x%x\n", nid);
1940 	snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
1941 }
1942 
1943 #define INTEL_VENDOR_NID 0x08
1944 #define INTEL_GET_VENDOR_VERB 0xf81
1945 #define INTEL_SET_VENDOR_VERB 0x781
1946 #define INTEL_EN_DP12			0x02 /* enable DP 1.2 features */
1947 #define INTEL_EN_ALL_PIN_CVTS	0x01 /* enable 2nd & 3rd pins and convertors */
1948 
1949 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
1950 					  bool update_tree)
1951 {
1952 	unsigned int vendor_param;
1953 
1954 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1955 				INTEL_GET_VENDOR_VERB, 0);
1956 	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1957 		return;
1958 
1959 	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1960 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1961 				INTEL_SET_VENDOR_VERB, vendor_param);
1962 	if (vendor_param == -1)
1963 		return;
1964 
1965 	if (update_tree)
1966 		snd_hda_codec_update_widgets(codec);
1967 }
1968 
1969 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
1970 {
1971 	unsigned int vendor_param;
1972 
1973 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1974 				INTEL_GET_VENDOR_VERB, 0);
1975 	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1976 		return;
1977 
1978 	/* enable DP1.2 mode */
1979 	vendor_param |= INTEL_EN_DP12;
1980 	snd_hda_codec_write_cache(codec, INTEL_VENDOR_NID, 0,
1981 				INTEL_SET_VENDOR_VERB, vendor_param);
1982 }
1983 
1984 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
1985  * Otherwise you may get severe h/w communication errors.
1986  */
1987 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1988 				unsigned int power_state)
1989 {
1990 	if (power_state == AC_PWRST_D0) {
1991 		intel_haswell_enable_all_pins(codec, false);
1992 		intel_haswell_fixup_enable_dp12(codec);
1993 	}
1994 
1995 	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
1996 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
1997 }
1998 
1999 static int patch_generic_hdmi(struct hda_codec *codec)
2000 {
2001 	struct hdmi_spec *spec;
2002 
2003 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2004 	if (spec == NULL)
2005 		return -ENOMEM;
2006 
2007 	codec->spec = spec;
2008 	hdmi_array_init(spec, 4);
2009 
2010 	if (is_haswell(codec)) {
2011 		intel_haswell_enable_all_pins(codec, true);
2012 		intel_haswell_fixup_enable_dp12(codec);
2013 	}
2014 
2015 	if (hdmi_parse_codec(codec) < 0) {
2016 		codec->spec = NULL;
2017 		kfree(spec);
2018 		return -EINVAL;
2019 	}
2020 	codec->patch_ops = generic_hdmi_patch_ops;
2021 	if (is_haswell(codec)) {
2022 		codec->patch_ops.set_power_state = haswell_set_power_state;
2023 		codec->dp_mst = true;
2024 	}
2025 
2026 	generic_hdmi_init_per_pins(codec);
2027 
2028 	init_channel_allocations();
2029 
2030 	return 0;
2031 }
2032 
2033 /*
2034  * Shared non-generic implementations
2035  */
2036 
2037 static int simple_playback_build_pcms(struct hda_codec *codec)
2038 {
2039 	struct hdmi_spec *spec = codec->spec;
2040 	struct hda_pcm *info;
2041 	unsigned int chans;
2042 	struct hda_pcm_stream *pstr;
2043 	struct hdmi_spec_per_cvt *per_cvt;
2044 
2045 	per_cvt = get_cvt(spec, 0);
2046 	chans = get_wcaps(codec, per_cvt->cvt_nid);
2047 	chans = get_wcaps_channels(chans);
2048 
2049 	info = snd_array_new(&spec->pcm_rec);
2050 	if (!info)
2051 		return -ENOMEM;
2052 	info->name = get_pin(spec, 0)->pcm_name;
2053 	sprintf(info->name, "HDMI 0");
2054 	info->pcm_type = HDA_PCM_TYPE_HDMI;
2055 	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2056 	*pstr = spec->pcm_playback;
2057 	pstr->nid = per_cvt->cvt_nid;
2058 	if (pstr->channels_max <= 2 && chans && chans <= 16)
2059 		pstr->channels_max = chans;
2060 
2061 	codec->num_pcms = 1;
2062 	codec->pcm_info = info;
2063 
2064 	return 0;
2065 }
2066 
2067 /* unsolicited event for jack sensing */
2068 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2069 				    unsigned int res)
2070 {
2071 	snd_hda_jack_set_dirty_all(codec);
2072 	snd_hda_jack_report_sync(codec);
2073 }
2074 
2075 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2076  * as long as spec->pins[] is set correctly
2077  */
2078 #define simple_hdmi_build_jack	generic_hdmi_build_jack
2079 
2080 static int simple_playback_build_controls(struct hda_codec *codec)
2081 {
2082 	struct hdmi_spec *spec = codec->spec;
2083 	struct hdmi_spec_per_cvt *per_cvt;
2084 	int err;
2085 
2086 	per_cvt = get_cvt(spec, 0);
2087 	err = snd_hda_create_spdif_out_ctls(codec, per_cvt->cvt_nid,
2088 					    per_cvt->cvt_nid);
2089 	if (err < 0)
2090 		return err;
2091 	return simple_hdmi_build_jack(codec, 0);
2092 }
2093 
2094 static int simple_playback_init(struct hda_codec *codec)
2095 {
2096 	struct hdmi_spec *spec = codec->spec;
2097 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2098 	hda_nid_t pin = per_pin->pin_nid;
2099 
2100 	snd_hda_codec_write(codec, pin, 0,
2101 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2102 	/* some codecs require to unmute the pin */
2103 	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2104 		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2105 				    AMP_OUT_UNMUTE);
2106 	snd_hda_jack_detect_enable(codec, pin, pin);
2107 	return 0;
2108 }
2109 
2110 static void simple_playback_free(struct hda_codec *codec)
2111 {
2112 	struct hdmi_spec *spec = codec->spec;
2113 
2114 	hdmi_array_free(spec);
2115 	kfree(spec);
2116 }
2117 
2118 /*
2119  * Nvidia specific implementations
2120  */
2121 
2122 #define Nv_VERB_SET_Channel_Allocation          0xF79
2123 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2124 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2125 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2126 
2127 #define nvhdmi_master_con_nid_7x	0x04
2128 #define nvhdmi_master_pin_nid_7x	0x05
2129 
2130 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2131 	/*front, rear, clfe, rear_surr */
2132 	0x6, 0x8, 0xa, 0xc,
2133 };
2134 
2135 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2136 	/* set audio protect on */
2137 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2138 	/* enable digital output on pin widget */
2139 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2140 	{} /* terminator */
2141 };
2142 
2143 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2144 	/* set audio protect on */
2145 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2146 	/* enable digital output on pin widget */
2147 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2148 	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2149 	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2150 	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2151 	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2152 	{} /* terminator */
2153 };
2154 
2155 #ifdef LIMITED_RATE_FMT_SUPPORT
2156 /* support only the safe format and rate */
2157 #define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
2158 #define SUPPORTED_MAXBPS	16
2159 #define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
2160 #else
2161 /* support all rates and formats */
2162 #define SUPPORTED_RATES \
2163 	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2164 	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2165 	 SNDRV_PCM_RATE_192000)
2166 #define SUPPORTED_MAXBPS	24
2167 #define SUPPORTED_FORMATS \
2168 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2169 #endif
2170 
2171 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2172 {
2173 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2174 	return 0;
2175 }
2176 
2177 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2178 {
2179 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2180 	return 0;
2181 }
2182 
2183 static unsigned int channels_2_6_8[] = {
2184 	2, 6, 8
2185 };
2186 
2187 static unsigned int channels_2_8[] = {
2188 	2, 8
2189 };
2190 
2191 static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2192 	.count = ARRAY_SIZE(channels_2_6_8),
2193 	.list = channels_2_6_8,
2194 	.mask = 0,
2195 };
2196 
2197 static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2198 	.count = ARRAY_SIZE(channels_2_8),
2199 	.list = channels_2_8,
2200 	.mask = 0,
2201 };
2202 
2203 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2204 				    struct hda_codec *codec,
2205 				    struct snd_pcm_substream *substream)
2206 {
2207 	struct hdmi_spec *spec = codec->spec;
2208 	struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2209 
2210 	switch (codec->preset->id) {
2211 	case 0x10de0002:
2212 	case 0x10de0003:
2213 	case 0x10de0005:
2214 	case 0x10de0006:
2215 		hw_constraints_channels = &hw_constraints_2_8_channels;
2216 		break;
2217 	case 0x10de0007:
2218 		hw_constraints_channels = &hw_constraints_2_6_8_channels;
2219 		break;
2220 	default:
2221 		break;
2222 	}
2223 
2224 	if (hw_constraints_channels != NULL) {
2225 		snd_pcm_hw_constraint_list(substream->runtime, 0,
2226 				SNDRV_PCM_HW_PARAM_CHANNELS,
2227 				hw_constraints_channels);
2228 	} else {
2229 		snd_pcm_hw_constraint_step(substream->runtime, 0,
2230 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2231 	}
2232 
2233 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2234 }
2235 
2236 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2237 				     struct hda_codec *codec,
2238 				     struct snd_pcm_substream *substream)
2239 {
2240 	struct hdmi_spec *spec = codec->spec;
2241 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2242 }
2243 
2244 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2245 				       struct hda_codec *codec,
2246 				       unsigned int stream_tag,
2247 				       unsigned int format,
2248 				       struct snd_pcm_substream *substream)
2249 {
2250 	struct hdmi_spec *spec = codec->spec;
2251 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2252 					     stream_tag, format, substream);
2253 }
2254 
2255 static const struct hda_pcm_stream simple_pcm_playback = {
2256 	.substreams = 1,
2257 	.channels_min = 2,
2258 	.channels_max = 2,
2259 	.ops = {
2260 		.open = simple_playback_pcm_open,
2261 		.close = simple_playback_pcm_close,
2262 		.prepare = simple_playback_pcm_prepare
2263 	},
2264 };
2265 
2266 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2267 	.build_controls = simple_playback_build_controls,
2268 	.build_pcms = simple_playback_build_pcms,
2269 	.init = simple_playback_init,
2270 	.free = simple_playback_free,
2271 	.unsol_event = simple_hdmi_unsol_event,
2272 };
2273 
2274 static int patch_simple_hdmi(struct hda_codec *codec,
2275 			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
2276 {
2277 	struct hdmi_spec *spec;
2278 	struct hdmi_spec_per_cvt *per_cvt;
2279 	struct hdmi_spec_per_pin *per_pin;
2280 
2281 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2282 	if (!spec)
2283 		return -ENOMEM;
2284 
2285 	codec->spec = spec;
2286 	hdmi_array_init(spec, 1);
2287 
2288 	spec->multiout.num_dacs = 0;  /* no analog */
2289 	spec->multiout.max_channels = 2;
2290 	spec->multiout.dig_out_nid = cvt_nid;
2291 	spec->num_cvts = 1;
2292 	spec->num_pins = 1;
2293 	per_pin = snd_array_new(&spec->pins);
2294 	per_cvt = snd_array_new(&spec->cvts);
2295 	if (!per_pin || !per_cvt) {
2296 		simple_playback_free(codec);
2297 		return -ENOMEM;
2298 	}
2299 	per_cvt->cvt_nid = cvt_nid;
2300 	per_pin->pin_nid = pin_nid;
2301 	spec->pcm_playback = simple_pcm_playback;
2302 
2303 	codec->patch_ops = simple_hdmi_patch_ops;
2304 
2305 	return 0;
2306 }
2307 
2308 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2309 						    int channels)
2310 {
2311 	unsigned int chanmask;
2312 	int chan = channels ? (channels - 1) : 1;
2313 
2314 	switch (channels) {
2315 	default:
2316 	case 0:
2317 	case 2:
2318 		chanmask = 0x00;
2319 		break;
2320 	case 4:
2321 		chanmask = 0x08;
2322 		break;
2323 	case 6:
2324 		chanmask = 0x0b;
2325 		break;
2326 	case 8:
2327 		chanmask = 0x13;
2328 		break;
2329 	}
2330 
2331 	/* Set the audio infoframe channel allocation and checksum fields.  The
2332 	 * channel count is computed implicitly by the hardware. */
2333 	snd_hda_codec_write(codec, 0x1, 0,
2334 			Nv_VERB_SET_Channel_Allocation, chanmask);
2335 
2336 	snd_hda_codec_write(codec, 0x1, 0,
2337 			Nv_VERB_SET_Info_Frame_Checksum,
2338 			(0x71 - chan - chanmask));
2339 }
2340 
2341 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
2342 				   struct hda_codec *codec,
2343 				   struct snd_pcm_substream *substream)
2344 {
2345 	struct hdmi_spec *spec = codec->spec;
2346 	int i;
2347 
2348 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
2349 			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
2350 	for (i = 0; i < 4; i++) {
2351 		/* set the stream id */
2352 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2353 				AC_VERB_SET_CHANNEL_STREAMID, 0);
2354 		/* set the stream format */
2355 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2356 				AC_VERB_SET_STREAM_FORMAT, 0);
2357 	}
2358 
2359 	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
2360 	 * streams are disabled. */
2361 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2362 
2363 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2364 }
2365 
2366 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
2367 				     struct hda_codec *codec,
2368 				     unsigned int stream_tag,
2369 				     unsigned int format,
2370 				     struct snd_pcm_substream *substream)
2371 {
2372 	int chs;
2373 	unsigned int dataDCC2, channel_id;
2374 	int i;
2375 	struct hdmi_spec *spec = codec->spec;
2376 	struct hda_spdif_out *spdif;
2377 	struct hdmi_spec_per_cvt *per_cvt;
2378 
2379 	mutex_lock(&codec->spdif_mutex);
2380 	per_cvt = get_cvt(spec, 0);
2381 	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
2382 
2383 	chs = substream->runtime->channels;
2384 
2385 	dataDCC2 = 0x2;
2386 
2387 	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2388 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
2389 		snd_hda_codec_write(codec,
2390 				nvhdmi_master_con_nid_7x,
2391 				0,
2392 				AC_VERB_SET_DIGI_CONVERT_1,
2393 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2394 
2395 	/* set the stream id */
2396 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2397 			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
2398 
2399 	/* set the stream format */
2400 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2401 			AC_VERB_SET_STREAM_FORMAT, format);
2402 
2403 	/* turn on again (if needed) */
2404 	/* enable and set the channel status audio/data flag */
2405 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
2406 		snd_hda_codec_write(codec,
2407 				nvhdmi_master_con_nid_7x,
2408 				0,
2409 				AC_VERB_SET_DIGI_CONVERT_1,
2410 				spdif->ctls & 0xff);
2411 		snd_hda_codec_write(codec,
2412 				nvhdmi_master_con_nid_7x,
2413 				0,
2414 				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2415 	}
2416 
2417 	for (i = 0; i < 4; i++) {
2418 		if (chs == 2)
2419 			channel_id = 0;
2420 		else
2421 			channel_id = i * 2;
2422 
2423 		/* turn off SPDIF once;
2424 		 *otherwise the IEC958 bits won't be updated
2425 		 */
2426 		if (codec->spdif_status_reset &&
2427 		(spdif->ctls & AC_DIG1_ENABLE))
2428 			snd_hda_codec_write(codec,
2429 				nvhdmi_con_nids_7x[i],
2430 				0,
2431 				AC_VERB_SET_DIGI_CONVERT_1,
2432 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2433 		/* set the stream id */
2434 		snd_hda_codec_write(codec,
2435 				nvhdmi_con_nids_7x[i],
2436 				0,
2437 				AC_VERB_SET_CHANNEL_STREAMID,
2438 				(stream_tag << 4) | channel_id);
2439 		/* set the stream format */
2440 		snd_hda_codec_write(codec,
2441 				nvhdmi_con_nids_7x[i],
2442 				0,
2443 				AC_VERB_SET_STREAM_FORMAT,
2444 				format);
2445 		/* turn on again (if needed) */
2446 		/* enable and set the channel status audio/data flag */
2447 		if (codec->spdif_status_reset &&
2448 		(spdif->ctls & AC_DIG1_ENABLE)) {
2449 			snd_hda_codec_write(codec,
2450 					nvhdmi_con_nids_7x[i],
2451 					0,
2452 					AC_VERB_SET_DIGI_CONVERT_1,
2453 					spdif->ctls & 0xff);
2454 			snd_hda_codec_write(codec,
2455 					nvhdmi_con_nids_7x[i],
2456 					0,
2457 					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2458 		}
2459 	}
2460 
2461 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
2462 
2463 	mutex_unlock(&codec->spdif_mutex);
2464 	return 0;
2465 }
2466 
2467 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
2468 	.substreams = 1,
2469 	.channels_min = 2,
2470 	.channels_max = 8,
2471 	.nid = nvhdmi_master_con_nid_7x,
2472 	.rates = SUPPORTED_RATES,
2473 	.maxbps = SUPPORTED_MAXBPS,
2474 	.formats = SUPPORTED_FORMATS,
2475 	.ops = {
2476 		.open = simple_playback_pcm_open,
2477 		.close = nvhdmi_8ch_7x_pcm_close,
2478 		.prepare = nvhdmi_8ch_7x_pcm_prepare
2479 	},
2480 };
2481 
2482 static int patch_nvhdmi_2ch(struct hda_codec *codec)
2483 {
2484 	struct hdmi_spec *spec;
2485 	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
2486 				    nvhdmi_master_pin_nid_7x);
2487 	if (err < 0)
2488 		return err;
2489 
2490 	codec->patch_ops.init = nvhdmi_7x_init_2ch;
2491 	/* override the PCM rates, etc, as the codec doesn't give full list */
2492 	spec = codec->spec;
2493 	spec->pcm_playback.rates = SUPPORTED_RATES;
2494 	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
2495 	spec->pcm_playback.formats = SUPPORTED_FORMATS;
2496 	return 0;
2497 }
2498 
2499 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
2500 {
2501 	struct hdmi_spec *spec = codec->spec;
2502 	int err = simple_playback_build_pcms(codec);
2503 	if (!err) {
2504 		struct hda_pcm *info = get_pcm_rec(spec, 0);
2505 		info->own_chmap = true;
2506 	}
2507 	return err;
2508 }
2509 
2510 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
2511 {
2512 	struct hdmi_spec *spec = codec->spec;
2513 	struct hda_pcm *info;
2514 	struct snd_pcm_chmap *chmap;
2515 	int err;
2516 
2517 	err = simple_playback_build_controls(codec);
2518 	if (err < 0)
2519 		return err;
2520 
2521 	/* add channel maps */
2522 	info = get_pcm_rec(spec, 0);
2523 	err = snd_pcm_add_chmap_ctls(info->pcm,
2524 				     SNDRV_PCM_STREAM_PLAYBACK,
2525 				     snd_pcm_alt_chmaps, 8, 0, &chmap);
2526 	if (err < 0)
2527 		return err;
2528 	switch (codec->preset->id) {
2529 	case 0x10de0002:
2530 	case 0x10de0003:
2531 	case 0x10de0005:
2532 	case 0x10de0006:
2533 		chmap->channel_mask = (1U << 2) | (1U << 8);
2534 		break;
2535 	case 0x10de0007:
2536 		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
2537 	}
2538 	return 0;
2539 }
2540 
2541 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
2542 {
2543 	struct hdmi_spec *spec;
2544 	int err = patch_nvhdmi_2ch(codec);
2545 	if (err < 0)
2546 		return err;
2547 	spec = codec->spec;
2548 	spec->multiout.max_channels = 8;
2549 	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
2550 	codec->patch_ops.init = nvhdmi_7x_init_8ch;
2551 	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
2552 	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
2553 
2554 	/* Initialize the audio infoframe channel mask and checksum to something
2555 	 * valid */
2556 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2557 
2558 	return 0;
2559 }
2560 
2561 /*
2562  * ATI-specific implementations
2563  *
2564  * FIXME: we may omit the whole this and use the generic code once after
2565  * it's confirmed to work.
2566  */
2567 
2568 #define ATIHDMI_CVT_NID		0x02	/* audio converter */
2569 #define ATIHDMI_PIN_NID		0x03	/* HDMI output pin */
2570 
2571 static int atihdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2572 					struct hda_codec *codec,
2573 					unsigned int stream_tag,
2574 					unsigned int format,
2575 					struct snd_pcm_substream *substream)
2576 {
2577 	struct hdmi_spec *spec = codec->spec;
2578 	struct hdmi_spec_per_cvt *per_cvt = get_cvt(spec, 0);
2579 	int chans = substream->runtime->channels;
2580 	int i, err;
2581 
2582 	err = simple_playback_pcm_prepare(hinfo, codec, stream_tag, format,
2583 					  substream);
2584 	if (err < 0)
2585 		return err;
2586 	snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
2587 			    AC_VERB_SET_CVT_CHAN_COUNT, chans - 1);
2588 	/* FIXME: XXX */
2589 	for (i = 0; i < chans; i++) {
2590 		snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
2591 				    AC_VERB_SET_HDMI_CHAN_SLOT,
2592 				    (i << 4) | i);
2593 	}
2594 	return 0;
2595 }
2596 
2597 static int patch_atihdmi(struct hda_codec *codec)
2598 {
2599 	struct hdmi_spec *spec;
2600 	int err = patch_simple_hdmi(codec, ATIHDMI_CVT_NID, ATIHDMI_PIN_NID);
2601 	if (err < 0)
2602 		return err;
2603 	spec = codec->spec;
2604 	spec->pcm_playback.ops.prepare = atihdmi_playback_pcm_prepare;
2605 	return 0;
2606 }
2607 
2608 /* VIA HDMI Implementation */
2609 #define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
2610 #define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
2611 
2612 static int patch_via_hdmi(struct hda_codec *codec)
2613 {
2614 	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
2615 }
2616 
2617 /*
2618  * patch entries
2619  */
2620 static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
2621 { .id = 0x1002793c, .name = "RS600 HDMI",	.patch = patch_atihdmi },
2622 { .id = 0x10027919, .name = "RS600 HDMI",	.patch = patch_atihdmi },
2623 { .id = 0x1002791a, .name = "RS690/780 HDMI",	.patch = patch_atihdmi },
2624 { .id = 0x1002aa01, .name = "R6xx HDMI",	.patch = patch_generic_hdmi },
2625 { .id = 0x10951390, .name = "SiI1390 HDMI",	.patch = patch_generic_hdmi },
2626 { .id = 0x10951392, .name = "SiI1392 HDMI",	.patch = patch_generic_hdmi },
2627 { .id = 0x17e80047, .name = "Chrontel HDMI",	.patch = patch_generic_hdmi },
2628 { .id = 0x10de0002, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2629 { .id = 0x10de0003, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2630 { .id = 0x10de0005, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2631 { .id = 0x10de0006, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2632 { .id = 0x10de0007, .name = "MCP79/7A HDMI",	.patch = patch_nvhdmi_8ch_7x },
2633 { .id = 0x10de000a, .name = "GPU 0a HDMI/DP",	.patch = patch_generic_hdmi },
2634 { .id = 0x10de000b, .name = "GPU 0b HDMI/DP",	.patch = patch_generic_hdmi },
2635 { .id = 0x10de000c, .name = "MCP89 HDMI",	.patch = patch_generic_hdmi },
2636 { .id = 0x10de000d, .name = "GPU 0d HDMI/DP",	.patch = patch_generic_hdmi },
2637 { .id = 0x10de0010, .name = "GPU 10 HDMI/DP",	.patch = patch_generic_hdmi },
2638 { .id = 0x10de0011, .name = "GPU 11 HDMI/DP",	.patch = patch_generic_hdmi },
2639 { .id = 0x10de0012, .name = "GPU 12 HDMI/DP",	.patch = patch_generic_hdmi },
2640 { .id = 0x10de0013, .name = "GPU 13 HDMI/DP",	.patch = patch_generic_hdmi },
2641 { .id = 0x10de0014, .name = "GPU 14 HDMI/DP",	.patch = patch_generic_hdmi },
2642 { .id = 0x10de0015, .name = "GPU 15 HDMI/DP",	.patch = patch_generic_hdmi },
2643 { .id = 0x10de0016, .name = "GPU 16 HDMI/DP",	.patch = patch_generic_hdmi },
2644 /* 17 is known to be absent */
2645 { .id = 0x10de0018, .name = "GPU 18 HDMI/DP",	.patch = patch_generic_hdmi },
2646 { .id = 0x10de0019, .name = "GPU 19 HDMI/DP",	.patch = patch_generic_hdmi },
2647 { .id = 0x10de001a, .name = "GPU 1a HDMI/DP",	.patch = patch_generic_hdmi },
2648 { .id = 0x10de001b, .name = "GPU 1b HDMI/DP",	.patch = patch_generic_hdmi },
2649 { .id = 0x10de001c, .name = "GPU 1c HDMI/DP",	.patch = patch_generic_hdmi },
2650 { .id = 0x10de0040, .name = "GPU 40 HDMI/DP",	.patch = patch_generic_hdmi },
2651 { .id = 0x10de0041, .name = "GPU 41 HDMI/DP",	.patch = patch_generic_hdmi },
2652 { .id = 0x10de0042, .name = "GPU 42 HDMI/DP",	.patch = patch_generic_hdmi },
2653 { .id = 0x10de0043, .name = "GPU 43 HDMI/DP",	.patch = patch_generic_hdmi },
2654 { .id = 0x10de0044, .name = "GPU 44 HDMI/DP",	.patch = patch_generic_hdmi },
2655 { .id = 0x10de0051, .name = "GPU 51 HDMI/DP",	.patch = patch_generic_hdmi },
2656 { .id = 0x10de0060, .name = "GPU 60 HDMI/DP",	.patch = patch_generic_hdmi },
2657 { .id = 0x10de0067, .name = "MCP67 HDMI",	.patch = patch_nvhdmi_2ch },
2658 { .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
2659 { .id = 0x11069f80, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
2660 { .id = 0x11069f81, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
2661 { .id = 0x11069f84, .name = "VX11 HDMI/DP",	.patch = patch_generic_hdmi },
2662 { .id = 0x11069f85, .name = "VX11 HDMI/DP",	.patch = patch_generic_hdmi },
2663 { .id = 0x80860054, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
2664 { .id = 0x80862801, .name = "Bearlake HDMI",	.patch = patch_generic_hdmi },
2665 { .id = 0x80862802, .name = "Cantiga HDMI",	.patch = patch_generic_hdmi },
2666 { .id = 0x80862803, .name = "Eaglelake HDMI",	.patch = patch_generic_hdmi },
2667 { .id = 0x80862804, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
2668 { .id = 0x80862805, .name = "CougarPoint HDMI",	.patch = patch_generic_hdmi },
2669 { .id = 0x80862806, .name = "PantherPoint HDMI", .patch = patch_generic_hdmi },
2670 { .id = 0x80862807, .name = "Haswell HDMI",	.patch = patch_generic_hdmi },
2671 { .id = 0x80862880, .name = "CedarTrail HDMI",	.patch = patch_generic_hdmi },
2672 { .id = 0x808629fb, .name = "Crestline HDMI",	.patch = patch_generic_hdmi },
2673 {} /* terminator */
2674 };
2675 
2676 MODULE_ALIAS("snd-hda-codec-id:1002793c");
2677 MODULE_ALIAS("snd-hda-codec-id:10027919");
2678 MODULE_ALIAS("snd-hda-codec-id:1002791a");
2679 MODULE_ALIAS("snd-hda-codec-id:1002aa01");
2680 MODULE_ALIAS("snd-hda-codec-id:10951390");
2681 MODULE_ALIAS("snd-hda-codec-id:10951392");
2682 MODULE_ALIAS("snd-hda-codec-id:10de0002");
2683 MODULE_ALIAS("snd-hda-codec-id:10de0003");
2684 MODULE_ALIAS("snd-hda-codec-id:10de0005");
2685 MODULE_ALIAS("snd-hda-codec-id:10de0006");
2686 MODULE_ALIAS("snd-hda-codec-id:10de0007");
2687 MODULE_ALIAS("snd-hda-codec-id:10de000a");
2688 MODULE_ALIAS("snd-hda-codec-id:10de000b");
2689 MODULE_ALIAS("snd-hda-codec-id:10de000c");
2690 MODULE_ALIAS("snd-hda-codec-id:10de000d");
2691 MODULE_ALIAS("snd-hda-codec-id:10de0010");
2692 MODULE_ALIAS("snd-hda-codec-id:10de0011");
2693 MODULE_ALIAS("snd-hda-codec-id:10de0012");
2694 MODULE_ALIAS("snd-hda-codec-id:10de0013");
2695 MODULE_ALIAS("snd-hda-codec-id:10de0014");
2696 MODULE_ALIAS("snd-hda-codec-id:10de0015");
2697 MODULE_ALIAS("snd-hda-codec-id:10de0016");
2698 MODULE_ALIAS("snd-hda-codec-id:10de0018");
2699 MODULE_ALIAS("snd-hda-codec-id:10de0019");
2700 MODULE_ALIAS("snd-hda-codec-id:10de001a");
2701 MODULE_ALIAS("snd-hda-codec-id:10de001b");
2702 MODULE_ALIAS("snd-hda-codec-id:10de001c");
2703 MODULE_ALIAS("snd-hda-codec-id:10de0040");
2704 MODULE_ALIAS("snd-hda-codec-id:10de0041");
2705 MODULE_ALIAS("snd-hda-codec-id:10de0042");
2706 MODULE_ALIAS("snd-hda-codec-id:10de0043");
2707 MODULE_ALIAS("snd-hda-codec-id:10de0044");
2708 MODULE_ALIAS("snd-hda-codec-id:10de0051");
2709 MODULE_ALIAS("snd-hda-codec-id:10de0060");
2710 MODULE_ALIAS("snd-hda-codec-id:10de0067");
2711 MODULE_ALIAS("snd-hda-codec-id:10de8001");
2712 MODULE_ALIAS("snd-hda-codec-id:11069f80");
2713 MODULE_ALIAS("snd-hda-codec-id:11069f81");
2714 MODULE_ALIAS("snd-hda-codec-id:11069f84");
2715 MODULE_ALIAS("snd-hda-codec-id:11069f85");
2716 MODULE_ALIAS("snd-hda-codec-id:17e80047");
2717 MODULE_ALIAS("snd-hda-codec-id:80860054");
2718 MODULE_ALIAS("snd-hda-codec-id:80862801");
2719 MODULE_ALIAS("snd-hda-codec-id:80862802");
2720 MODULE_ALIAS("snd-hda-codec-id:80862803");
2721 MODULE_ALIAS("snd-hda-codec-id:80862804");
2722 MODULE_ALIAS("snd-hda-codec-id:80862805");
2723 MODULE_ALIAS("snd-hda-codec-id:80862806");
2724 MODULE_ALIAS("snd-hda-codec-id:80862807");
2725 MODULE_ALIAS("snd-hda-codec-id:80862880");
2726 MODULE_ALIAS("snd-hda-codec-id:808629fb");
2727 
2728 MODULE_LICENSE("GPL");
2729 MODULE_DESCRIPTION("HDMI HD-audio codec");
2730 MODULE_ALIAS("snd-hda-codec-intelhdmi");
2731 MODULE_ALIAS("snd-hda-codec-nvhdmi");
2732 MODULE_ALIAS("snd-hda-codec-atihdmi");
2733 
2734 static struct hda_codec_preset_list intel_list = {
2735 	.preset = snd_hda_preset_hdmi,
2736 	.owner = THIS_MODULE,
2737 };
2738 
2739 static int __init patch_hdmi_init(void)
2740 {
2741 	return snd_hda_add_codec_preset(&intel_list);
2742 }
2743 
2744 static void __exit patch_hdmi_exit(void)
2745 {
2746 	snd_hda_delete_codec_preset(&intel_list);
2747 }
2748 
2749 module_init(patch_hdmi_init)
2750 module_exit(patch_hdmi_exit)
2751