xref: /openbmc/linux/sound/pci/hda/patch_hdmi.c (revision c4c11dd1)
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 struct hdmi_spec_per_cvt {
48 	hda_nid_t cvt_nid;
49 	int assigned;
50 	unsigned int channels_min;
51 	unsigned int channels_max;
52 	u32 rates;
53 	u64 formats;
54 	unsigned int maxbps;
55 };
56 
57 /* max. connections to a widget */
58 #define HDA_MAX_CONNECTIONS	32
59 
60 struct hdmi_spec_per_pin {
61 	hda_nid_t pin_nid;
62 	int num_mux_nids;
63 	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
64 
65 	struct hda_codec *codec;
66 	struct hdmi_eld sink_eld;
67 	struct delayed_work work;
68 	struct snd_kcontrol *eld_ctl;
69 	int repoll_count;
70 	bool non_pcm;
71 	bool chmap_set;		/* channel-map override by ALSA API? */
72 	unsigned char chmap[8]; /* ALSA API channel-map */
73 	char pcm_name[8];	/* filled in build_pcm callbacks */
74 };
75 
76 struct hdmi_spec {
77 	int num_cvts;
78 	struct snd_array cvts; /* struct hdmi_spec_per_cvt */
79 	hda_nid_t cvt_nids[4]; /* only for haswell fix */
80 
81 	int num_pins;
82 	struct snd_array pins; /* struct hdmi_spec_per_pin */
83 	struct snd_array pcm_rec; /* struct hda_pcm */
84 	unsigned int channels_max; /* max over all cvts */
85 
86 	struct hdmi_eld temp_eld;
87 	/*
88 	 * Non-generic ATI/NVIDIA specific
89 	 */
90 	struct hda_multi_out multiout;
91 	struct hda_pcm_stream pcm_playback;
92 };
93 
94 
95 struct hdmi_audio_infoframe {
96 	u8 type; /* 0x84 */
97 	u8 ver;  /* 0x01 */
98 	u8 len;  /* 0x0a */
99 
100 	u8 checksum;
101 
102 	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
103 	u8 SS01_SF24;
104 	u8 CXT04;
105 	u8 CA;
106 	u8 LFEPBL01_LSV36_DM_INH7;
107 };
108 
109 struct dp_audio_infoframe {
110 	u8 type; /* 0x84 */
111 	u8 len;  /* 0x1b */
112 	u8 ver;  /* 0x11 << 2 */
113 
114 	u8 CC02_CT47;	/* match with HDMI infoframe from this on */
115 	u8 SS01_SF24;
116 	u8 CXT04;
117 	u8 CA;
118 	u8 LFEPBL01_LSV36_DM_INH7;
119 };
120 
121 union audio_infoframe {
122 	struct hdmi_audio_infoframe hdmi;
123 	struct dp_audio_infoframe dp;
124 	u8 bytes[0];
125 };
126 
127 /*
128  * CEA speaker placement:
129  *
130  *        FLH       FCH        FRH
131  *  FLW    FL  FLC   FC   FRC   FR   FRW
132  *
133  *                                  LFE
134  *                     TC
135  *
136  *          RL  RLC   RC   RRC   RR
137  *
138  * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
139  * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
140  */
141 enum cea_speaker_placement {
142 	FL  = (1 <<  0),	/* Front Left           */
143 	FC  = (1 <<  1),	/* Front Center         */
144 	FR  = (1 <<  2),	/* Front Right          */
145 	FLC = (1 <<  3),	/* Front Left Center    */
146 	FRC = (1 <<  4),	/* Front Right Center   */
147 	RL  = (1 <<  5),	/* Rear Left            */
148 	RC  = (1 <<  6),	/* Rear Center          */
149 	RR  = (1 <<  7),	/* Rear Right           */
150 	RLC = (1 <<  8),	/* Rear Left Center     */
151 	RRC = (1 <<  9),	/* Rear Right Center    */
152 	LFE = (1 << 10),	/* Low Frequency Effect */
153 	FLW = (1 << 11),	/* Front Left Wide      */
154 	FRW = (1 << 12),	/* Front Right Wide     */
155 	FLH = (1 << 13),	/* Front Left High      */
156 	FCH = (1 << 14),	/* Front Center High    */
157 	FRH = (1 << 15),	/* Front Right High     */
158 	TC  = (1 << 16),	/* Top Center           */
159 };
160 
161 /*
162  * ELD SA bits in the CEA Speaker Allocation data block
163  */
164 static int eld_speaker_allocation_bits[] = {
165 	[0] = FL | FR,
166 	[1] = LFE,
167 	[2] = FC,
168 	[3] = RL | RR,
169 	[4] = RC,
170 	[5] = FLC | FRC,
171 	[6] = RLC | RRC,
172 	/* the following are not defined in ELD yet */
173 	[7] = FLW | FRW,
174 	[8] = FLH | FRH,
175 	[9] = TC,
176 	[10] = FCH,
177 };
178 
179 struct cea_channel_speaker_allocation {
180 	int ca_index;
181 	int speakers[8];
182 
183 	/* derived values, just for convenience */
184 	int channels;
185 	int spk_mask;
186 };
187 
188 /*
189  * ALSA sequence is:
190  *
191  *       surround40   surround41   surround50   surround51   surround71
192  * ch0   front left   =            =            =            =
193  * ch1   front right  =            =            =            =
194  * ch2   rear left    =            =            =            =
195  * ch3   rear right   =            =            =            =
196  * ch4                LFE          center       center       center
197  * ch5                                          LFE          LFE
198  * ch6                                                       side left
199  * ch7                                                       side right
200  *
201  * surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR}
202  */
203 static int hdmi_channel_mapping[0x32][8] = {
204 	/* stereo */
205 	[0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
206 	/* 2.1 */
207 	[0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
208 	/* Dolby Surround */
209 	[0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 },
210 	/* surround40 */
211 	[0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 },
212 	/* 4ch */
213 	[0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 },
214 	/* surround41 */
215 	[0x09] = { 0x00, 0x11, 0x24, 0x35, 0x42, 0xf3, 0xf6, 0xf7 },
216 	/* surround50 */
217 	[0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 },
218 	/* surround51 */
219 	[0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 },
220 	/* 7.1 */
221 	[0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 },
222 };
223 
224 /*
225  * This is an ordered list!
226  *
227  * The preceding ones have better chances to be selected by
228  * hdmi_channel_allocation().
229  */
230 static struct cea_channel_speaker_allocation channel_allocations[] = {
231 /*			  channel:   7     6    5    4    3     2    1    0  */
232 { .ca_index = 0x00,  .speakers = {   0,    0,   0,   0,   0,    0,  FR,  FL } },
233 				 /* 2.1 */
234 { .ca_index = 0x01,  .speakers = {   0,    0,   0,   0,   0,  LFE,  FR,  FL } },
235 				 /* Dolby Surround */
236 { .ca_index = 0x02,  .speakers = {   0,    0,   0,   0,  FC,    0,  FR,  FL } },
237 				 /* surround40 */
238 { .ca_index = 0x08,  .speakers = {   0,    0,  RR,  RL,   0,    0,  FR,  FL } },
239 				 /* surround41 */
240 { .ca_index = 0x09,  .speakers = {   0,    0,  RR,  RL,   0,  LFE,  FR,  FL } },
241 				 /* surround50 */
242 { .ca_index = 0x0a,  .speakers = {   0,    0,  RR,  RL,  FC,    0,  FR,  FL } },
243 				 /* surround51 */
244 { .ca_index = 0x0b,  .speakers = {   0,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
245 				 /* 6.1 */
246 { .ca_index = 0x0f,  .speakers = {   0,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
247 				 /* surround71 */
248 { .ca_index = 0x13,  .speakers = { RRC,  RLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
249 
250 { .ca_index = 0x03,  .speakers = {   0,    0,   0,   0,  FC,  LFE,  FR,  FL } },
251 { .ca_index = 0x04,  .speakers = {   0,    0,   0,  RC,   0,    0,  FR,  FL } },
252 { .ca_index = 0x05,  .speakers = {   0,    0,   0,  RC,   0,  LFE,  FR,  FL } },
253 { .ca_index = 0x06,  .speakers = {   0,    0,   0,  RC,  FC,    0,  FR,  FL } },
254 { .ca_index = 0x07,  .speakers = {   0,    0,   0,  RC,  FC,  LFE,  FR,  FL } },
255 { .ca_index = 0x0c,  .speakers = {   0,   RC,  RR,  RL,   0,    0,  FR,  FL } },
256 { .ca_index = 0x0d,  .speakers = {   0,   RC,  RR,  RL,   0,  LFE,  FR,  FL } },
257 { .ca_index = 0x0e,  .speakers = {   0,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
258 { .ca_index = 0x10,  .speakers = { RRC,  RLC,  RR,  RL,   0,    0,  FR,  FL } },
259 { .ca_index = 0x11,  .speakers = { RRC,  RLC,  RR,  RL,   0,  LFE,  FR,  FL } },
260 { .ca_index = 0x12,  .speakers = { RRC,  RLC,  RR,  RL,  FC,    0,  FR,  FL } },
261 { .ca_index = 0x14,  .speakers = { FRC,  FLC,   0,   0,   0,    0,  FR,  FL } },
262 { .ca_index = 0x15,  .speakers = { FRC,  FLC,   0,   0,   0,  LFE,  FR,  FL } },
263 { .ca_index = 0x16,  .speakers = { FRC,  FLC,   0,   0,  FC,    0,  FR,  FL } },
264 { .ca_index = 0x17,  .speakers = { FRC,  FLC,   0,   0,  FC,  LFE,  FR,  FL } },
265 { .ca_index = 0x18,  .speakers = { FRC,  FLC,   0,  RC,   0,    0,  FR,  FL } },
266 { .ca_index = 0x19,  .speakers = { FRC,  FLC,   0,  RC,   0,  LFE,  FR,  FL } },
267 { .ca_index = 0x1a,  .speakers = { FRC,  FLC,   0,  RC,  FC,    0,  FR,  FL } },
268 { .ca_index = 0x1b,  .speakers = { FRC,  FLC,   0,  RC,  FC,  LFE,  FR,  FL } },
269 { .ca_index = 0x1c,  .speakers = { FRC,  FLC,  RR,  RL,   0,    0,  FR,  FL } },
270 { .ca_index = 0x1d,  .speakers = { FRC,  FLC,  RR,  RL,   0,  LFE,  FR,  FL } },
271 { .ca_index = 0x1e,  .speakers = { FRC,  FLC,  RR,  RL,  FC,    0,  FR,  FL } },
272 { .ca_index = 0x1f,  .speakers = { FRC,  FLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
273 { .ca_index = 0x20,  .speakers = {   0,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
274 { .ca_index = 0x21,  .speakers = {   0,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
275 { .ca_index = 0x22,  .speakers = {  TC,    0,  RR,  RL,  FC,    0,  FR,  FL } },
276 { .ca_index = 0x23,  .speakers = {  TC,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
277 { .ca_index = 0x24,  .speakers = { FRH,  FLH,  RR,  RL,   0,    0,  FR,  FL } },
278 { .ca_index = 0x25,  .speakers = { FRH,  FLH,  RR,  RL,   0,  LFE,  FR,  FL } },
279 { .ca_index = 0x26,  .speakers = { FRW,  FLW,  RR,  RL,   0,    0,  FR,  FL } },
280 { .ca_index = 0x27,  .speakers = { FRW,  FLW,  RR,  RL,   0,  LFE,  FR,  FL } },
281 { .ca_index = 0x28,  .speakers = {  TC,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
282 { .ca_index = 0x29,  .speakers = {  TC,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
283 { .ca_index = 0x2a,  .speakers = { FCH,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
284 { .ca_index = 0x2b,  .speakers = { FCH,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
285 { .ca_index = 0x2c,  .speakers = {  TC,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
286 { .ca_index = 0x2d,  .speakers = {  TC,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
287 { .ca_index = 0x2e,  .speakers = { FRH,  FLH,  RR,  RL,  FC,    0,  FR,  FL } },
288 { .ca_index = 0x2f,  .speakers = { FRH,  FLH,  RR,  RL,  FC,  LFE,  FR,  FL } },
289 { .ca_index = 0x30,  .speakers = { FRW,  FLW,  RR,  RL,  FC,    0,  FR,  FL } },
290 { .ca_index = 0x31,  .speakers = { FRW,  FLW,  RR,  RL,  FC,  LFE,  FR,  FL } },
291 };
292 
293 
294 /*
295  * HDMI routines
296  */
297 
298 #define get_pin(spec, idx) \
299 	((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
300 #define get_cvt(spec, idx) \
301 	((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
302 #define get_pcm_rec(spec, idx) \
303 	((struct hda_pcm *)snd_array_elem(&spec->pcm_rec, idx))
304 
305 static int pin_nid_to_pin_index(struct hdmi_spec *spec, hda_nid_t pin_nid)
306 {
307 	int pin_idx;
308 
309 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
310 		if (get_pin(spec, pin_idx)->pin_nid == pin_nid)
311 			return pin_idx;
312 
313 	snd_printk(KERN_WARNING "HDMI: pin nid %d not registered\n", pin_nid);
314 	return -EINVAL;
315 }
316 
317 static int hinfo_to_pin_index(struct hdmi_spec *spec,
318 			      struct hda_pcm_stream *hinfo)
319 {
320 	int pin_idx;
321 
322 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
323 		if (get_pcm_rec(spec, pin_idx)->stream == hinfo)
324 			return pin_idx;
325 
326 	snd_printk(KERN_WARNING "HDMI: hinfo %p not registered\n", hinfo);
327 	return -EINVAL;
328 }
329 
330 static int cvt_nid_to_cvt_index(struct hdmi_spec *spec, hda_nid_t cvt_nid)
331 {
332 	int cvt_idx;
333 
334 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
335 		if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
336 			return cvt_idx;
337 
338 	snd_printk(KERN_WARNING "HDMI: cvt nid %d not registered\n", cvt_nid);
339 	return -EINVAL;
340 }
341 
342 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
343 			struct snd_ctl_elem_info *uinfo)
344 {
345 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
346 	struct hdmi_spec *spec = codec->spec;
347 	struct hdmi_eld *eld;
348 	int pin_idx;
349 
350 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
351 
352 	pin_idx = kcontrol->private_value;
353 	eld = &get_pin(spec, pin_idx)->sink_eld;
354 
355 	mutex_lock(&eld->lock);
356 	uinfo->count = eld->eld_valid ? eld->eld_size : 0;
357 	mutex_unlock(&eld->lock);
358 
359 	return 0;
360 }
361 
362 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
363 			struct snd_ctl_elem_value *ucontrol)
364 {
365 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
366 	struct hdmi_spec *spec = codec->spec;
367 	struct hdmi_eld *eld;
368 	int pin_idx;
369 
370 	pin_idx = kcontrol->private_value;
371 	eld = &get_pin(spec, pin_idx)->sink_eld;
372 
373 	mutex_lock(&eld->lock);
374 	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
375 		mutex_unlock(&eld->lock);
376 		snd_BUG();
377 		return -EINVAL;
378 	}
379 
380 	memset(ucontrol->value.bytes.data, 0,
381 	       ARRAY_SIZE(ucontrol->value.bytes.data));
382 	if (eld->eld_valid)
383 		memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
384 		       eld->eld_size);
385 	mutex_unlock(&eld->lock);
386 
387 	return 0;
388 }
389 
390 static struct snd_kcontrol_new eld_bytes_ctl = {
391 	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
392 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
393 	.name = "ELD",
394 	.info = hdmi_eld_ctl_info,
395 	.get = hdmi_eld_ctl_get,
396 };
397 
398 static int hdmi_create_eld_ctl(struct hda_codec *codec, int pin_idx,
399 			int device)
400 {
401 	struct snd_kcontrol *kctl;
402 	struct hdmi_spec *spec = codec->spec;
403 	int err;
404 
405 	kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
406 	if (!kctl)
407 		return -ENOMEM;
408 	kctl->private_value = pin_idx;
409 	kctl->id.device = device;
410 
411 	err = snd_hda_ctl_add(codec, get_pin(spec, pin_idx)->pin_nid, kctl);
412 	if (err < 0)
413 		return err;
414 
415 	get_pin(spec, pin_idx)->eld_ctl = kctl;
416 	return 0;
417 }
418 
419 #ifdef BE_PARANOID
420 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
421 				int *packet_index, int *byte_index)
422 {
423 	int val;
424 
425 	val = snd_hda_codec_read(codec, pin_nid, 0,
426 				 AC_VERB_GET_HDMI_DIP_INDEX, 0);
427 
428 	*packet_index = val >> 5;
429 	*byte_index = val & 0x1f;
430 }
431 #endif
432 
433 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
434 				int packet_index, int byte_index)
435 {
436 	int val;
437 
438 	val = (packet_index << 5) | (byte_index & 0x1f);
439 
440 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
441 }
442 
443 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
444 				unsigned char val)
445 {
446 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
447 }
448 
449 static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
450 {
451 	/* Unmute */
452 	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
453 		snd_hda_codec_write(codec, pin_nid, 0,
454 				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
455 	/* Enable pin out: some machines with GM965 gets broken output when
456 	 * the pin is disabled or changed while using with HDMI
457 	 */
458 	snd_hda_codec_write(codec, pin_nid, 0,
459 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
460 }
461 
462 static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t cvt_nid)
463 {
464 	return 1 + snd_hda_codec_read(codec, cvt_nid, 0,
465 					AC_VERB_GET_CVT_CHAN_COUNT, 0);
466 }
467 
468 static void hdmi_set_channel_count(struct hda_codec *codec,
469 				   hda_nid_t cvt_nid, int chs)
470 {
471 	if (chs != hdmi_get_channel_count(codec, cvt_nid))
472 		snd_hda_codec_write(codec, cvt_nid, 0,
473 				    AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
474 }
475 
476 
477 /*
478  * Channel mapping routines
479  */
480 
481 /*
482  * Compute derived values in channel_allocations[].
483  */
484 static void init_channel_allocations(void)
485 {
486 	int i, j;
487 	struct cea_channel_speaker_allocation *p;
488 
489 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
490 		p = channel_allocations + i;
491 		p->channels = 0;
492 		p->spk_mask = 0;
493 		for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
494 			if (p->speakers[j]) {
495 				p->channels++;
496 				p->spk_mask |= p->speakers[j];
497 			}
498 	}
499 }
500 
501 static int get_channel_allocation_order(int ca)
502 {
503 	int i;
504 
505 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
506 		if (channel_allocations[i].ca_index == ca)
507 			break;
508 	}
509 	return i;
510 }
511 
512 /*
513  * The transformation takes two steps:
514  *
515  *	eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
516  *	      spk_mask => (channel_allocations[])         => ai->CA
517  *
518  * TODO: it could select the wrong CA from multiple candidates.
519 */
520 static int hdmi_channel_allocation(struct hdmi_eld *eld, int channels)
521 {
522 	int i;
523 	int ca = 0;
524 	int spk_mask = 0;
525 	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
526 
527 	/*
528 	 * CA defaults to 0 for basic stereo audio
529 	 */
530 	if (channels <= 2)
531 		return 0;
532 
533 	/*
534 	 * expand ELD's speaker allocation mask
535 	 *
536 	 * ELD tells the speaker mask in a compact(paired) form,
537 	 * expand ELD's notions to match the ones used by Audio InfoFrame.
538 	 */
539 	for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
540 		if (eld->info.spk_alloc & (1 << i))
541 			spk_mask |= eld_speaker_allocation_bits[i];
542 	}
543 
544 	/* search for the first working match in the CA table */
545 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
546 		if (channels == channel_allocations[i].channels &&
547 		    (spk_mask & channel_allocations[i].spk_mask) ==
548 				channel_allocations[i].spk_mask) {
549 			ca = channel_allocations[i].ca_index;
550 			break;
551 		}
552 	}
553 
554 	snd_print_channel_allocation(eld->info.spk_alloc, buf, sizeof(buf));
555 	snd_printdd("HDMI: select CA 0x%x for %d-channel allocation: %s\n",
556 		    ca, channels, buf);
557 
558 	return ca;
559 }
560 
561 static void hdmi_debug_channel_mapping(struct hda_codec *codec,
562 				       hda_nid_t pin_nid)
563 {
564 #ifdef CONFIG_SND_DEBUG_VERBOSE
565 	int i;
566 	int slot;
567 
568 	for (i = 0; i < 8; i++) {
569 		slot = snd_hda_codec_read(codec, pin_nid, 0,
570 						AC_VERB_GET_HDMI_CHAN_SLOT, i);
571 		printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
572 						slot >> 4, slot & 0xf);
573 	}
574 #endif
575 }
576 
577 
578 static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
579 				       hda_nid_t pin_nid,
580 				       bool non_pcm,
581 				       int ca)
582 {
583 	int i;
584 	int err;
585 	int order;
586 	int non_pcm_mapping[8];
587 
588 	order = get_channel_allocation_order(ca);
589 
590 	if (hdmi_channel_mapping[ca][1] == 0) {
591 		for (i = 0; i < channel_allocations[order].channels; i++)
592 			hdmi_channel_mapping[ca][i] = i | (i << 4);
593 		for (; i < 8; i++)
594 			hdmi_channel_mapping[ca][i] = 0xf | (i << 4);
595 	}
596 
597 	if (non_pcm) {
598 		for (i = 0; i < channel_allocations[order].channels; i++)
599 			non_pcm_mapping[i] = i | (i << 4);
600 		for (; i < 8; i++)
601 			non_pcm_mapping[i] = 0xf | (i << 4);
602 	}
603 
604 	for (i = 0; i < 8; i++) {
605 		err = snd_hda_codec_write(codec, pin_nid, 0,
606 					  AC_VERB_SET_HDMI_CHAN_SLOT,
607 					  non_pcm ? non_pcm_mapping[i] : hdmi_channel_mapping[ca][i]);
608 		if (err) {
609 			snd_printdd(KERN_NOTICE
610 				    "HDMI: channel mapping failed\n");
611 			break;
612 		}
613 	}
614 
615 	hdmi_debug_channel_mapping(codec, pin_nid);
616 }
617 
618 struct channel_map_table {
619 	unsigned char map;		/* ALSA API channel map position */
620 	unsigned char cea_slot;		/* CEA slot value */
621 	int spk_mask;			/* speaker position bit mask */
622 };
623 
624 static struct channel_map_table map_tables[] = {
625 	{ SNDRV_CHMAP_FL,	0x00,	FL },
626 	{ SNDRV_CHMAP_FR,	0x01,	FR },
627 	{ SNDRV_CHMAP_RL,	0x04,	RL },
628 	{ SNDRV_CHMAP_RR,	0x05,	RR },
629 	{ SNDRV_CHMAP_LFE,	0x02,	LFE },
630 	{ SNDRV_CHMAP_FC,	0x03,	FC },
631 	{ SNDRV_CHMAP_RLC,	0x06,	RLC },
632 	{ SNDRV_CHMAP_RRC,	0x07,	RRC },
633 	{} /* terminator */
634 };
635 
636 /* from ALSA API channel position to speaker bit mask */
637 static int to_spk_mask(unsigned char c)
638 {
639 	struct channel_map_table *t = map_tables;
640 	for (; t->map; t++) {
641 		if (t->map == c)
642 			return t->spk_mask;
643 	}
644 	return 0;
645 }
646 
647 /* from ALSA API channel position to CEA slot */
648 static int to_cea_slot(unsigned char c)
649 {
650 	struct channel_map_table *t = map_tables;
651 	for (; t->map; t++) {
652 		if (t->map == c)
653 			return t->cea_slot;
654 	}
655 	return 0x0f;
656 }
657 
658 /* from CEA slot to ALSA API channel position */
659 static int from_cea_slot(unsigned char c)
660 {
661 	struct channel_map_table *t = map_tables;
662 	for (; t->map; t++) {
663 		if (t->cea_slot == c)
664 			return t->map;
665 	}
666 	return 0;
667 }
668 
669 /* from speaker bit mask to ALSA API channel position */
670 static int spk_to_chmap(int spk)
671 {
672 	struct channel_map_table *t = map_tables;
673 	for (; t->map; t++) {
674 		if (t->spk_mask == spk)
675 			return t->map;
676 	}
677 	return 0;
678 }
679 
680 /* get the CA index corresponding to the given ALSA API channel map */
681 static int hdmi_manual_channel_allocation(int chs, unsigned char *map)
682 {
683 	int i, spks = 0, spk_mask = 0;
684 
685 	for (i = 0; i < chs; i++) {
686 		int mask = to_spk_mask(map[i]);
687 		if (mask) {
688 			spk_mask |= mask;
689 			spks++;
690 		}
691 	}
692 
693 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
694 		if ((chs == channel_allocations[i].channels ||
695 		     spks == channel_allocations[i].channels) &&
696 		    (spk_mask & channel_allocations[i].spk_mask) ==
697 				channel_allocations[i].spk_mask)
698 			return channel_allocations[i].ca_index;
699 	}
700 	return -1;
701 }
702 
703 /* set up the channel slots for the given ALSA API channel map */
704 static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
705 					     hda_nid_t pin_nid,
706 					     int chs, unsigned char *map)
707 {
708 	int i;
709 	for (i = 0; i < 8; i++) {
710 		int val, err;
711 		if (i < chs)
712 			val = to_cea_slot(map[i]);
713 		else
714 			val = 0xf;
715 		val |= (i << 4);
716 		err = snd_hda_codec_write(codec, pin_nid, 0,
717 					  AC_VERB_SET_HDMI_CHAN_SLOT, val);
718 		if (err)
719 			return -EINVAL;
720 	}
721 	return 0;
722 }
723 
724 /* store ALSA API channel map from the current default map */
725 static void hdmi_setup_fake_chmap(unsigned char *map, int ca)
726 {
727 	int i;
728 	for (i = 0; i < 8; i++) {
729 		if (i < channel_allocations[ca].channels)
730 			map[i] = from_cea_slot((hdmi_channel_mapping[ca][i] >> 4) & 0x0f);
731 		else
732 			map[i] = 0;
733 	}
734 }
735 
736 static void hdmi_setup_channel_mapping(struct hda_codec *codec,
737 				       hda_nid_t pin_nid, bool non_pcm, int ca,
738 				       int channels, unsigned char *map,
739 				       bool chmap_set)
740 {
741 	if (!non_pcm && chmap_set) {
742 		hdmi_manual_setup_channel_mapping(codec, pin_nid,
743 						  channels, map);
744 	} else {
745 		hdmi_std_setup_channel_mapping(codec, pin_nid, non_pcm, ca);
746 		hdmi_setup_fake_chmap(map, ca);
747 	}
748 }
749 
750 /*
751  * Audio InfoFrame routines
752  */
753 
754 /*
755  * Enable Audio InfoFrame Transmission
756  */
757 static void hdmi_start_infoframe_trans(struct hda_codec *codec,
758 				       hda_nid_t pin_nid)
759 {
760 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
761 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
762 						AC_DIPXMIT_BEST);
763 }
764 
765 /*
766  * Disable Audio InfoFrame Transmission
767  */
768 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
769 				      hda_nid_t pin_nid)
770 {
771 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
772 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
773 						AC_DIPXMIT_DISABLE);
774 }
775 
776 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
777 {
778 #ifdef CONFIG_SND_DEBUG_VERBOSE
779 	int i;
780 	int size;
781 
782 	size = snd_hdmi_get_eld_size(codec, pin_nid);
783 	printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size);
784 
785 	for (i = 0; i < 8; i++) {
786 		size = snd_hda_codec_read(codec, pin_nid, 0,
787 						AC_VERB_GET_HDMI_DIP_SIZE, i);
788 		printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size);
789 	}
790 #endif
791 }
792 
793 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
794 {
795 #ifdef BE_PARANOID
796 	int i, j;
797 	int size;
798 	int pi, bi;
799 	for (i = 0; i < 8; i++) {
800 		size = snd_hda_codec_read(codec, pin_nid, 0,
801 						AC_VERB_GET_HDMI_DIP_SIZE, i);
802 		if (size == 0)
803 			continue;
804 
805 		hdmi_set_dip_index(codec, pin_nid, i, 0x0);
806 		for (j = 1; j < 1000; j++) {
807 			hdmi_write_dip_byte(codec, pin_nid, 0x0);
808 			hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
809 			if (pi != i)
810 				snd_printd(KERN_INFO "dip index %d: %d != %d\n",
811 						bi, pi, i);
812 			if (bi == 0) /* byte index wrapped around */
813 				break;
814 		}
815 		snd_printd(KERN_INFO
816 			"HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
817 			i, size, j);
818 	}
819 #endif
820 }
821 
822 static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
823 {
824 	u8 *bytes = (u8 *)hdmi_ai;
825 	u8 sum = 0;
826 	int i;
827 
828 	hdmi_ai->checksum = 0;
829 
830 	for (i = 0; i < sizeof(*hdmi_ai); i++)
831 		sum += bytes[i];
832 
833 	hdmi_ai->checksum = -sum;
834 }
835 
836 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
837 				      hda_nid_t pin_nid,
838 				      u8 *dip, int size)
839 {
840 	int i;
841 
842 	hdmi_debug_dip_size(codec, pin_nid);
843 	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
844 
845 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
846 	for (i = 0; i < size; i++)
847 		hdmi_write_dip_byte(codec, pin_nid, dip[i]);
848 }
849 
850 static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
851 				    u8 *dip, int size)
852 {
853 	u8 val;
854 	int i;
855 
856 	if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
857 							    != AC_DIPXMIT_BEST)
858 		return false;
859 
860 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
861 	for (i = 0; i < size; i++) {
862 		val = snd_hda_codec_read(codec, pin_nid, 0,
863 					 AC_VERB_GET_HDMI_DIP_DATA, 0);
864 		if (val != dip[i])
865 			return false;
866 	}
867 
868 	return true;
869 }
870 
871 static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx,
872 				       bool non_pcm,
873 				       struct snd_pcm_substream *substream)
874 {
875 	struct hdmi_spec *spec = codec->spec;
876 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
877 	hda_nid_t pin_nid = per_pin->pin_nid;
878 	int channels = substream->runtime->channels;
879 	struct hdmi_eld *eld;
880 	int ca;
881 	union audio_infoframe ai;
882 
883 	eld = &per_pin->sink_eld;
884 	if (!eld->monitor_present)
885 		return;
886 
887 	if (!non_pcm && per_pin->chmap_set)
888 		ca = hdmi_manual_channel_allocation(channels, per_pin->chmap);
889 	else
890 		ca = hdmi_channel_allocation(eld, channels);
891 	if (ca < 0)
892 		ca = 0;
893 
894 	memset(&ai, 0, sizeof(ai));
895 	if (eld->info.conn_type == 0) { /* HDMI */
896 		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
897 
898 		hdmi_ai->type		= 0x84;
899 		hdmi_ai->ver		= 0x01;
900 		hdmi_ai->len		= 0x0a;
901 		hdmi_ai->CC02_CT47	= channels - 1;
902 		hdmi_ai->CA		= ca;
903 		hdmi_checksum_audio_infoframe(hdmi_ai);
904 	} else if (eld->info.conn_type == 1) { /* DisplayPort */
905 		struct dp_audio_infoframe *dp_ai = &ai.dp;
906 
907 		dp_ai->type		= 0x84;
908 		dp_ai->len		= 0x1b;
909 		dp_ai->ver		= 0x11 << 2;
910 		dp_ai->CC02_CT47	= channels - 1;
911 		dp_ai->CA		= ca;
912 	} else {
913 		snd_printd("HDMI: unknown connection type at pin %d\n",
914 			    pin_nid);
915 		return;
916 	}
917 
918 	/*
919 	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
920 	 * sizeof(*dp_ai) to avoid partial match/update problems when
921 	 * the user switches between HDMI/DP monitors.
922 	 */
923 	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
924 					sizeof(ai))) {
925 		snd_printdd("hdmi_setup_audio_infoframe: "
926 			    "pin=%d channels=%d\n",
927 			    pin_nid,
928 			    channels);
929 		hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
930 					   channels, per_pin->chmap,
931 					   per_pin->chmap_set);
932 		hdmi_stop_infoframe_trans(codec, pin_nid);
933 		hdmi_fill_audio_infoframe(codec, pin_nid,
934 					    ai.bytes, sizeof(ai));
935 		hdmi_start_infoframe_trans(codec, pin_nid);
936 	} else {
937 		/* For non-pcm audio switch, setup new channel mapping
938 		 * accordingly */
939 		if (per_pin->non_pcm != non_pcm)
940 			hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
941 						   channels, per_pin->chmap,
942 						   per_pin->chmap_set);
943 	}
944 
945 	per_pin->non_pcm = non_pcm;
946 }
947 
948 
949 /*
950  * Unsolicited events
951  */
952 
953 static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
954 
955 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
956 {
957 	struct hdmi_spec *spec = codec->spec;
958 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
959 	int pin_nid;
960 	int pin_idx;
961 	struct hda_jack_tbl *jack;
962 
963 	jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
964 	if (!jack)
965 		return;
966 	pin_nid = jack->nid;
967 	jack->jack_dirty = 1;
968 
969 	_snd_printd(SND_PR_VERBOSE,
970 		"HDMI hot plug event: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
971 		codec->addr, pin_nid,
972 		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
973 
974 	pin_idx = pin_nid_to_pin_index(spec, pin_nid);
975 	if (pin_idx < 0)
976 		return;
977 
978 	hdmi_present_sense(get_pin(spec, pin_idx), 1);
979 	snd_hda_jack_report_sync(codec);
980 }
981 
982 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
983 {
984 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
985 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
986 	int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
987 	int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
988 
989 	printk(KERN_INFO
990 		"HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
991 		codec->addr,
992 		tag,
993 		subtag,
994 		cp_state,
995 		cp_ready);
996 
997 	/* TODO */
998 	if (cp_state)
999 		;
1000 	if (cp_ready)
1001 		;
1002 }
1003 
1004 
1005 static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
1006 {
1007 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1008 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1009 
1010 	if (!snd_hda_jack_tbl_get_from_tag(codec, tag)) {
1011 		snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag);
1012 		return;
1013 	}
1014 
1015 	if (subtag == 0)
1016 		hdmi_intrinsic_event(codec, res);
1017 	else
1018 		hdmi_non_intrinsic_event(codec, res);
1019 }
1020 
1021 static void haswell_verify_pin_D0(struct hda_codec *codec,
1022 		hda_nid_t cvt_nid, hda_nid_t nid)
1023 {
1024 	int pwr, lamp, ramp;
1025 
1026 	/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
1027 	 * thus pins could only choose converter 0 for use. Make sure the
1028 	 * converters are in correct power state */
1029 	if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
1030 		snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
1031 
1032 	if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
1033 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
1034 				    AC_PWRST_D0);
1035 		msleep(40);
1036 		pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
1037 		pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
1038 		snd_printd("Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
1039 	}
1040 
1041 	lamp = snd_hda_codec_read(codec, nid, 0,
1042 				  AC_VERB_GET_AMP_GAIN_MUTE,
1043 				  AC_AMP_GET_LEFT | AC_AMP_GET_OUTPUT);
1044 	ramp = snd_hda_codec_read(codec, nid, 0,
1045 				  AC_VERB_GET_AMP_GAIN_MUTE,
1046 				  AC_AMP_GET_RIGHT | AC_AMP_GET_OUTPUT);
1047 	if (lamp != ramp) {
1048 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
1049 				    AC_AMP_SET_RIGHT | AC_AMP_SET_OUTPUT | lamp);
1050 
1051 		lamp = snd_hda_codec_read(codec, nid, 0,
1052 				  AC_VERB_GET_AMP_GAIN_MUTE,
1053 				  AC_AMP_GET_LEFT | AC_AMP_GET_OUTPUT);
1054 		ramp = snd_hda_codec_read(codec, nid, 0,
1055 				  AC_VERB_GET_AMP_GAIN_MUTE,
1056 				  AC_AMP_GET_RIGHT | AC_AMP_GET_OUTPUT);
1057 		snd_printd("Haswell HDMI audio: Mute after set on pin 0x%x: [0x%x 0x%x]\n", nid, lamp, ramp);
1058 	}
1059 }
1060 
1061 /*
1062  * Callbacks
1063  */
1064 
1065 /* HBR should be Non-PCM, 8 channels */
1066 #define is_hbr_format(format) \
1067 	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
1068 
1069 static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
1070 			      hda_nid_t pin_nid, u32 stream_tag, int format)
1071 {
1072 	int pinctl;
1073 	int new_pinctl = 0;
1074 
1075 	if (codec->vendor_id == 0x80862807)
1076 		haswell_verify_pin_D0(codec, cvt_nid, pin_nid);
1077 
1078 	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
1079 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1080 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1081 
1082 		new_pinctl = pinctl & ~AC_PINCTL_EPT;
1083 		if (is_hbr_format(format))
1084 			new_pinctl |= AC_PINCTL_EPT_HBR;
1085 		else
1086 			new_pinctl |= AC_PINCTL_EPT_NATIVE;
1087 
1088 		snd_printdd("hdmi_setup_stream: "
1089 			    "NID=0x%x, %spinctl=0x%x\n",
1090 			    pin_nid,
1091 			    pinctl == new_pinctl ? "" : "new-",
1092 			    new_pinctl);
1093 
1094 		if (pinctl != new_pinctl)
1095 			snd_hda_codec_write(codec, pin_nid, 0,
1096 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
1097 					    new_pinctl);
1098 
1099 	}
1100 	if (is_hbr_format(format) && !new_pinctl) {
1101 		snd_printdd("hdmi_setup_stream: HBR is not supported\n");
1102 		return -EINVAL;
1103 	}
1104 
1105 	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
1106 	return 0;
1107 }
1108 
1109 static int hdmi_choose_cvt(struct hda_codec *codec,
1110 			int pin_idx, int *cvt_id, int *mux_id)
1111 {
1112 	struct hdmi_spec *spec = codec->spec;
1113 	struct hdmi_spec_per_pin *per_pin;
1114 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1115 	int cvt_idx, mux_idx = 0;
1116 
1117 	per_pin = get_pin(spec, pin_idx);
1118 
1119 	/* Dynamically assign converter to stream */
1120 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1121 		per_cvt = get_cvt(spec, cvt_idx);
1122 
1123 		/* Must not already be assigned */
1124 		if (per_cvt->assigned)
1125 			continue;
1126 		/* Must be in pin's mux's list of converters */
1127 		for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
1128 			if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
1129 				break;
1130 		/* Not in mux list */
1131 		if (mux_idx == per_pin->num_mux_nids)
1132 			continue;
1133 		break;
1134 	}
1135 
1136 	/* No free converters */
1137 	if (cvt_idx == spec->num_cvts)
1138 		return -ENODEV;
1139 
1140 	if (cvt_id)
1141 		*cvt_id = cvt_idx;
1142 	if (mux_id)
1143 		*mux_id = mux_idx;
1144 
1145 	return 0;
1146 }
1147 
1148 static void haswell_config_cvts(struct hda_codec *codec,
1149 			int pin_id, int mux_id)
1150 {
1151 	struct hdmi_spec *spec = codec->spec;
1152 	struct hdmi_spec_per_pin *per_pin;
1153 	int pin_idx, mux_idx;
1154 	int curr;
1155 	int err;
1156 
1157 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1158 		per_pin = get_pin(spec, pin_idx);
1159 
1160 		if (pin_idx == pin_id)
1161 			continue;
1162 
1163 		curr = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
1164 					  AC_VERB_GET_CONNECT_SEL, 0);
1165 
1166 		/* Choose another unused converter */
1167 		if (curr == mux_id) {
1168 			err = hdmi_choose_cvt(codec, pin_idx, NULL, &mux_idx);
1169 			if (err < 0)
1170 				return;
1171 			snd_printdd("HDMI: choose converter %d for pin %d\n", mux_idx, pin_idx);
1172 			snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1173 					    AC_VERB_SET_CONNECT_SEL,
1174 					    mux_idx);
1175 		}
1176 	}
1177 }
1178 
1179 /*
1180  * HDA PCM callbacks
1181  */
1182 static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
1183 			 struct hda_codec *codec,
1184 			 struct snd_pcm_substream *substream)
1185 {
1186 	struct hdmi_spec *spec = codec->spec;
1187 	struct snd_pcm_runtime *runtime = substream->runtime;
1188 	int pin_idx, cvt_idx, mux_idx = 0;
1189 	struct hdmi_spec_per_pin *per_pin;
1190 	struct hdmi_eld *eld;
1191 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1192 	int err;
1193 
1194 	/* Validate hinfo */
1195 	pin_idx = hinfo_to_pin_index(spec, hinfo);
1196 	if (snd_BUG_ON(pin_idx < 0))
1197 		return -EINVAL;
1198 	per_pin = get_pin(spec, pin_idx);
1199 	eld = &per_pin->sink_eld;
1200 
1201 	err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx, &mux_idx);
1202 	if (err < 0)
1203 		return err;
1204 
1205 	per_cvt = get_cvt(spec, cvt_idx);
1206 	/* Claim converter */
1207 	per_cvt->assigned = 1;
1208 	hinfo->nid = per_cvt->cvt_nid;
1209 
1210 	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1211 			    AC_VERB_SET_CONNECT_SEL,
1212 			    mux_idx);
1213 
1214 	/* configure unused pins to choose other converters */
1215 	if (codec->vendor_id == 0x80862807)
1216 		haswell_config_cvts(codec, pin_idx, mux_idx);
1217 
1218 	snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
1219 
1220 	/* Initially set the converter's capabilities */
1221 	hinfo->channels_min = per_cvt->channels_min;
1222 	hinfo->channels_max = per_cvt->channels_max;
1223 	hinfo->rates = per_cvt->rates;
1224 	hinfo->formats = per_cvt->formats;
1225 	hinfo->maxbps = per_cvt->maxbps;
1226 
1227 	/* Restrict capabilities by ELD if this isn't disabled */
1228 	if (!static_hdmi_pcm && eld->eld_valid) {
1229 		snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
1230 		if (hinfo->channels_min > hinfo->channels_max ||
1231 		    !hinfo->rates || !hinfo->formats) {
1232 			per_cvt->assigned = 0;
1233 			hinfo->nid = 0;
1234 			snd_hda_spdif_ctls_unassign(codec, pin_idx);
1235 			return -ENODEV;
1236 		}
1237 	}
1238 
1239 	/* Store the updated parameters */
1240 	runtime->hw.channels_min = hinfo->channels_min;
1241 	runtime->hw.channels_max = hinfo->channels_max;
1242 	runtime->hw.formats = hinfo->formats;
1243 	runtime->hw.rates = hinfo->rates;
1244 
1245 	snd_pcm_hw_constraint_step(substream->runtime, 0,
1246 				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1247 	return 0;
1248 }
1249 
1250 /*
1251  * HDA/HDMI auto parsing
1252  */
1253 static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
1254 {
1255 	struct hdmi_spec *spec = codec->spec;
1256 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1257 	hda_nid_t pin_nid = per_pin->pin_nid;
1258 
1259 	if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
1260 		snd_printk(KERN_WARNING
1261 			   "HDMI: pin %d wcaps %#x "
1262 			   "does not support connection list\n",
1263 			   pin_nid, get_wcaps(codec, pin_nid));
1264 		return -EINVAL;
1265 	}
1266 
1267 	per_pin->num_mux_nids = snd_hda_get_connections(codec, pin_nid,
1268 							per_pin->mux_nids,
1269 							HDA_MAX_CONNECTIONS);
1270 
1271 	return 0;
1272 }
1273 
1274 static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
1275 {
1276 	struct hda_codec *codec = per_pin->codec;
1277 	struct hdmi_spec *spec = codec->spec;
1278 	struct hdmi_eld *eld = &spec->temp_eld;
1279 	struct hdmi_eld *pin_eld = &per_pin->sink_eld;
1280 	hda_nid_t pin_nid = per_pin->pin_nid;
1281 	/*
1282 	 * Always execute a GetPinSense verb here, even when called from
1283 	 * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
1284 	 * response's PD bit is not the real PD value, but indicates that
1285 	 * the real PD value changed. An older version of the HD-audio
1286 	 * specification worked this way. Hence, we just ignore the data in
1287 	 * the unsolicited response to avoid custom WARs.
1288 	 */
1289 	int present = snd_hda_pin_sense(codec, pin_nid);
1290 	bool update_eld = false;
1291 	bool eld_changed = false;
1292 
1293 	pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
1294 	if (pin_eld->monitor_present)
1295 		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
1296 	else
1297 		eld->eld_valid = false;
1298 
1299 	_snd_printd(SND_PR_VERBOSE,
1300 		"HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
1301 		codec->addr, pin_nid, pin_eld->monitor_present, eld->eld_valid);
1302 
1303 	if (eld->eld_valid) {
1304 		if (snd_hdmi_get_eld(codec, pin_nid, eld->eld_buffer,
1305 						     &eld->eld_size) < 0)
1306 			eld->eld_valid = false;
1307 		else {
1308 			memset(&eld->info, 0, sizeof(struct parsed_hdmi_eld));
1309 			if (snd_hdmi_parse_eld(&eld->info, eld->eld_buffer,
1310 						    eld->eld_size) < 0)
1311 				eld->eld_valid = false;
1312 		}
1313 
1314 		if (eld->eld_valid) {
1315 			snd_hdmi_show_eld(&eld->info);
1316 			update_eld = true;
1317 		}
1318 		else if (repoll) {
1319 			queue_delayed_work(codec->bus->workq,
1320 					   &per_pin->work,
1321 					   msecs_to_jiffies(300));
1322 			return;
1323 		}
1324 	}
1325 
1326 	mutex_lock(&pin_eld->lock);
1327 	if (pin_eld->eld_valid && !eld->eld_valid) {
1328 		update_eld = true;
1329 		eld_changed = true;
1330 	}
1331 	if (update_eld) {
1332 		pin_eld->eld_valid = eld->eld_valid;
1333 		eld_changed = pin_eld->eld_size != eld->eld_size ||
1334 			      memcmp(pin_eld->eld_buffer, eld->eld_buffer,
1335 				     eld->eld_size) != 0;
1336 		if (eld_changed)
1337 			memcpy(pin_eld->eld_buffer, eld->eld_buffer,
1338 			       eld->eld_size);
1339 		pin_eld->eld_size = eld->eld_size;
1340 		pin_eld->info = eld->info;
1341 	}
1342 	mutex_unlock(&pin_eld->lock);
1343 
1344 	if (eld_changed)
1345 		snd_ctl_notify(codec->bus->card,
1346 			       SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
1347 			       &per_pin->eld_ctl->id);
1348 }
1349 
1350 static void hdmi_repoll_eld(struct work_struct *work)
1351 {
1352 	struct hdmi_spec_per_pin *per_pin =
1353 	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
1354 
1355 	if (per_pin->repoll_count++ > 6)
1356 		per_pin->repoll_count = 0;
1357 
1358 	hdmi_present_sense(per_pin, per_pin->repoll_count);
1359 }
1360 
1361 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1362 					     hda_nid_t nid);
1363 
1364 static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
1365 {
1366 	struct hdmi_spec *spec = codec->spec;
1367 	unsigned int caps, config;
1368 	int pin_idx;
1369 	struct hdmi_spec_per_pin *per_pin;
1370 	int err;
1371 
1372 	caps = snd_hda_query_pin_caps(codec, pin_nid);
1373 	if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
1374 		return 0;
1375 
1376 	config = snd_hda_codec_get_pincfg(codec, pin_nid);
1377 	if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
1378 		return 0;
1379 
1380 	if (codec->vendor_id == 0x80862807)
1381 		intel_haswell_fixup_connect_list(codec, pin_nid);
1382 
1383 	pin_idx = spec->num_pins;
1384 	per_pin = snd_array_new(&spec->pins);
1385 	if (!per_pin)
1386 		return -ENOMEM;
1387 
1388 	per_pin->pin_nid = pin_nid;
1389 	per_pin->non_pcm = false;
1390 
1391 	err = hdmi_read_pin_conn(codec, pin_idx);
1392 	if (err < 0)
1393 		return err;
1394 
1395 	spec->num_pins++;
1396 
1397 	return 0;
1398 }
1399 
1400 static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1401 {
1402 	struct hdmi_spec *spec = codec->spec;
1403 	struct hdmi_spec_per_cvt *per_cvt;
1404 	unsigned int chans;
1405 	int err;
1406 
1407 	chans = get_wcaps(codec, cvt_nid);
1408 	chans = get_wcaps_channels(chans);
1409 
1410 	per_cvt = snd_array_new(&spec->cvts);
1411 	if (!per_cvt)
1412 		return -ENOMEM;
1413 
1414 	per_cvt->cvt_nid = cvt_nid;
1415 	per_cvt->channels_min = 2;
1416 	if (chans <= 16) {
1417 		per_cvt->channels_max = chans;
1418 		if (chans > spec->channels_max)
1419 			spec->channels_max = chans;
1420 	}
1421 
1422 	err = snd_hda_query_supported_pcm(codec, cvt_nid,
1423 					  &per_cvt->rates,
1424 					  &per_cvt->formats,
1425 					  &per_cvt->maxbps);
1426 	if (err < 0)
1427 		return err;
1428 
1429 	if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
1430 		spec->cvt_nids[spec->num_cvts] = cvt_nid;
1431 	spec->num_cvts++;
1432 
1433 	return 0;
1434 }
1435 
1436 static int hdmi_parse_codec(struct hda_codec *codec)
1437 {
1438 	hda_nid_t nid;
1439 	int i, nodes;
1440 
1441 	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
1442 	if (!nid || nodes < 0) {
1443 		snd_printk(KERN_WARNING "HDMI: failed to get afg sub nodes\n");
1444 		return -EINVAL;
1445 	}
1446 
1447 	for (i = 0; i < nodes; i++, nid++) {
1448 		unsigned int caps;
1449 		unsigned int type;
1450 
1451 		caps = get_wcaps(codec, nid);
1452 		type = get_wcaps_type(caps);
1453 
1454 		if (!(caps & AC_WCAP_DIGITAL))
1455 			continue;
1456 
1457 		switch (type) {
1458 		case AC_WID_AUD_OUT:
1459 			hdmi_add_cvt(codec, nid);
1460 			break;
1461 		case AC_WID_PIN:
1462 			hdmi_add_pin(codec, nid);
1463 			break;
1464 		}
1465 	}
1466 
1467 #ifdef CONFIG_PM
1468 	/* We're seeing some problems with unsolicited hot plug events on
1469 	 * PantherPoint after S3, if this is not enabled */
1470 	if (codec->vendor_id == 0x80862806)
1471 		codec->bus->power_keep_link_on = 1;
1472 	/*
1473 	 * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event
1474 	 * can be lost and presence sense verb will become inaccurate if the
1475 	 * HDA link is powered off at hot plug or hw initialization time.
1476 	 */
1477 	else if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) &
1478 	      AC_PWRST_EPSS))
1479 		codec->bus->power_keep_link_on = 1;
1480 #endif
1481 
1482 	return 0;
1483 }
1484 
1485 /*
1486  */
1487 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1488 {
1489 	struct hda_spdif_out *spdif;
1490 	bool non_pcm;
1491 
1492 	mutex_lock(&codec->spdif_mutex);
1493 	spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
1494 	non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1495 	mutex_unlock(&codec->spdif_mutex);
1496 	return non_pcm;
1497 }
1498 
1499 
1500 /*
1501  * HDMI callbacks
1502  */
1503 
1504 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1505 					   struct hda_codec *codec,
1506 					   unsigned int stream_tag,
1507 					   unsigned int format,
1508 					   struct snd_pcm_substream *substream)
1509 {
1510 	hda_nid_t cvt_nid = hinfo->nid;
1511 	struct hdmi_spec *spec = codec->spec;
1512 	int pin_idx = hinfo_to_pin_index(spec, hinfo);
1513 	hda_nid_t pin_nid = get_pin(spec, pin_idx)->pin_nid;
1514 	bool non_pcm;
1515 
1516 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1517 
1518 	hdmi_set_channel_count(codec, cvt_nid, substream->runtime->channels);
1519 
1520 	hdmi_setup_audio_infoframe(codec, pin_idx, non_pcm, substream);
1521 
1522 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
1523 }
1524 
1525 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1526 					     struct hda_codec *codec,
1527 					     struct snd_pcm_substream *substream)
1528 {
1529 	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1530 	return 0;
1531 }
1532 
1533 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
1534 			  struct hda_codec *codec,
1535 			  struct snd_pcm_substream *substream)
1536 {
1537 	struct hdmi_spec *spec = codec->spec;
1538 	int cvt_idx, pin_idx;
1539 	struct hdmi_spec_per_cvt *per_cvt;
1540 	struct hdmi_spec_per_pin *per_pin;
1541 
1542 	if (hinfo->nid) {
1543 		cvt_idx = cvt_nid_to_cvt_index(spec, hinfo->nid);
1544 		if (snd_BUG_ON(cvt_idx < 0))
1545 			return -EINVAL;
1546 		per_cvt = get_cvt(spec, cvt_idx);
1547 
1548 		snd_BUG_ON(!per_cvt->assigned);
1549 		per_cvt->assigned = 0;
1550 		hinfo->nid = 0;
1551 
1552 		pin_idx = hinfo_to_pin_index(spec, hinfo);
1553 		if (snd_BUG_ON(pin_idx < 0))
1554 			return -EINVAL;
1555 		per_pin = get_pin(spec, pin_idx);
1556 
1557 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
1558 		per_pin->chmap_set = false;
1559 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1560 	}
1561 
1562 	return 0;
1563 }
1564 
1565 static const struct hda_pcm_ops generic_ops = {
1566 	.open = hdmi_pcm_open,
1567 	.close = hdmi_pcm_close,
1568 	.prepare = generic_hdmi_playback_pcm_prepare,
1569 	.cleanup = generic_hdmi_playback_pcm_cleanup,
1570 };
1571 
1572 /*
1573  * ALSA API channel-map control callbacks
1574  */
1575 static int hdmi_chmap_ctl_info(struct snd_kcontrol *kcontrol,
1576 			       struct snd_ctl_elem_info *uinfo)
1577 {
1578 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1579 	struct hda_codec *codec = info->private_data;
1580 	struct hdmi_spec *spec = codec->spec;
1581 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1582 	uinfo->count = spec->channels_max;
1583 	uinfo->value.integer.min = 0;
1584 	uinfo->value.integer.max = SNDRV_CHMAP_LAST;
1585 	return 0;
1586 }
1587 
1588 static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1589 			      unsigned int size, unsigned int __user *tlv)
1590 {
1591 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1592 	struct hda_codec *codec = info->private_data;
1593 	struct hdmi_spec *spec = codec->spec;
1594 	const unsigned int valid_mask =
1595 		FL | FR | RL | RR | LFE | FC | RLC | RRC;
1596 	unsigned int __user *dst;
1597 	int chs, count = 0;
1598 
1599 	if (size < 8)
1600 		return -ENOMEM;
1601 	if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
1602 		return -EFAULT;
1603 	size -= 8;
1604 	dst = tlv + 2;
1605 	for (chs = 2; chs <= spec->channels_max; chs++) {
1606 		int i, c;
1607 		struct cea_channel_speaker_allocation *cap;
1608 		cap = channel_allocations;
1609 		for (i = 0; i < ARRAY_SIZE(channel_allocations); i++, cap++) {
1610 			int chs_bytes = chs * 4;
1611 			if (cap->channels != chs)
1612 				continue;
1613 			if (cap->spk_mask & ~valid_mask)
1614 				continue;
1615 			if (size < 8)
1616 				return -ENOMEM;
1617 			if (put_user(SNDRV_CTL_TLVT_CHMAP_VAR, dst) ||
1618 			    put_user(chs_bytes, dst + 1))
1619 				return -EFAULT;
1620 			dst += 2;
1621 			size -= 8;
1622 			count += 8;
1623 			if (size < chs_bytes)
1624 				return -ENOMEM;
1625 			size -= chs_bytes;
1626 			count += chs_bytes;
1627 			for (c = 7; c >= 0; c--) {
1628 				int spk = cap->speakers[c];
1629 				if (!spk)
1630 					continue;
1631 				if (put_user(spk_to_chmap(spk), dst))
1632 					return -EFAULT;
1633 				dst++;
1634 			}
1635 		}
1636 	}
1637 	if (put_user(count, tlv + 1))
1638 		return -EFAULT;
1639 	return 0;
1640 }
1641 
1642 static int hdmi_chmap_ctl_get(struct snd_kcontrol *kcontrol,
1643 			      struct snd_ctl_elem_value *ucontrol)
1644 {
1645 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1646 	struct hda_codec *codec = info->private_data;
1647 	struct hdmi_spec *spec = codec->spec;
1648 	int pin_idx = kcontrol->private_value;
1649 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1650 	int i;
1651 
1652 	for (i = 0; i < ARRAY_SIZE(per_pin->chmap); i++)
1653 		ucontrol->value.integer.value[i] = per_pin->chmap[i];
1654 	return 0;
1655 }
1656 
1657 static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
1658 			      struct snd_ctl_elem_value *ucontrol)
1659 {
1660 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1661 	struct hda_codec *codec = info->private_data;
1662 	struct hdmi_spec *spec = codec->spec;
1663 	int pin_idx = kcontrol->private_value;
1664 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1665 	unsigned int ctl_idx;
1666 	struct snd_pcm_substream *substream;
1667 	unsigned char chmap[8];
1668 	int i, ca, prepared = 0;
1669 
1670 	ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
1671 	substream = snd_pcm_chmap_substream(info, ctl_idx);
1672 	if (!substream || !substream->runtime)
1673 		return 0; /* just for avoiding error from alsactl restore */
1674 	switch (substream->runtime->status->state) {
1675 	case SNDRV_PCM_STATE_OPEN:
1676 	case SNDRV_PCM_STATE_SETUP:
1677 		break;
1678 	case SNDRV_PCM_STATE_PREPARED:
1679 		prepared = 1;
1680 		break;
1681 	default:
1682 		return -EBUSY;
1683 	}
1684 	memset(chmap, 0, sizeof(chmap));
1685 	for (i = 0; i < ARRAY_SIZE(chmap); i++)
1686 		chmap[i] = ucontrol->value.integer.value[i];
1687 	if (!memcmp(chmap, per_pin->chmap, sizeof(chmap)))
1688 		return 0;
1689 	ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap);
1690 	if (ca < 0)
1691 		return -EINVAL;
1692 	per_pin->chmap_set = true;
1693 	memcpy(per_pin->chmap, chmap, sizeof(chmap));
1694 	if (prepared)
1695 		hdmi_setup_audio_infoframe(codec, pin_idx, per_pin->non_pcm,
1696 					   substream);
1697 
1698 	return 0;
1699 }
1700 
1701 static int generic_hdmi_build_pcms(struct hda_codec *codec)
1702 {
1703 	struct hdmi_spec *spec = codec->spec;
1704 	int pin_idx;
1705 
1706 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1707 		struct hda_pcm *info;
1708 		struct hda_pcm_stream *pstr;
1709 		struct hdmi_spec_per_pin *per_pin;
1710 
1711 		per_pin = get_pin(spec, pin_idx);
1712 		sprintf(per_pin->pcm_name, "HDMI %d", pin_idx);
1713 		info = snd_array_new(&spec->pcm_rec);
1714 		if (!info)
1715 			return -ENOMEM;
1716 		info->name = per_pin->pcm_name;
1717 		info->pcm_type = HDA_PCM_TYPE_HDMI;
1718 		info->own_chmap = true;
1719 
1720 		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
1721 		pstr->substreams = 1;
1722 		pstr->ops = generic_ops;
1723 		/* other pstr fields are set in open */
1724 	}
1725 
1726 	codec->num_pcms = spec->num_pins;
1727 	codec->pcm_info = spec->pcm_rec.list;
1728 
1729 	return 0;
1730 }
1731 
1732 static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
1733 {
1734 	char hdmi_str[32] = "HDMI/DP";
1735 	struct hdmi_spec *spec = codec->spec;
1736 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1737 	int pcmdev = get_pcm_rec(spec, pin_idx)->device;
1738 
1739 	if (pcmdev > 0)
1740 		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
1741 	if (!is_jack_detectable(codec, per_pin->pin_nid))
1742 		strncat(hdmi_str, " Phantom",
1743 			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
1744 
1745 	return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str, 0);
1746 }
1747 
1748 static int generic_hdmi_build_controls(struct hda_codec *codec)
1749 {
1750 	struct hdmi_spec *spec = codec->spec;
1751 	int err;
1752 	int pin_idx;
1753 
1754 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1755 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1756 
1757 		err = generic_hdmi_build_jack(codec, pin_idx);
1758 		if (err < 0)
1759 			return err;
1760 
1761 		err = snd_hda_create_dig_out_ctls(codec,
1762 						  per_pin->pin_nid,
1763 						  per_pin->mux_nids[0],
1764 						  HDA_PCM_TYPE_HDMI);
1765 		if (err < 0)
1766 			return err;
1767 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
1768 
1769 		/* add control for ELD Bytes */
1770 		err = hdmi_create_eld_ctl(codec, pin_idx,
1771 					  get_pcm_rec(spec, pin_idx)->device);
1772 
1773 		if (err < 0)
1774 			return err;
1775 
1776 		hdmi_present_sense(per_pin, 0);
1777 	}
1778 
1779 	/* add channel maps */
1780 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1781 		struct snd_pcm_chmap *chmap;
1782 		struct snd_kcontrol *kctl;
1783 		int i;
1784 		err = snd_pcm_add_chmap_ctls(codec->pcm_info[pin_idx].pcm,
1785 					     SNDRV_PCM_STREAM_PLAYBACK,
1786 					     NULL, 0, pin_idx, &chmap);
1787 		if (err < 0)
1788 			return err;
1789 		/* override handlers */
1790 		chmap->private_data = codec;
1791 		kctl = chmap->kctl;
1792 		for (i = 0; i < kctl->count; i++)
1793 			kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
1794 		kctl->info = hdmi_chmap_ctl_info;
1795 		kctl->get = hdmi_chmap_ctl_get;
1796 		kctl->put = hdmi_chmap_ctl_put;
1797 		kctl->tlv.c = hdmi_chmap_ctl_tlv;
1798 	}
1799 
1800 	return 0;
1801 }
1802 
1803 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
1804 {
1805 	struct hdmi_spec *spec = codec->spec;
1806 	int pin_idx;
1807 
1808 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1809 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1810 		struct hdmi_eld *eld = &per_pin->sink_eld;
1811 
1812 		per_pin->codec = codec;
1813 		mutex_init(&eld->lock);
1814 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
1815 		snd_hda_eld_proc_new(codec, eld, pin_idx);
1816 	}
1817 	return 0;
1818 }
1819 
1820 static int generic_hdmi_init(struct hda_codec *codec)
1821 {
1822 	struct hdmi_spec *spec = codec->spec;
1823 	int pin_idx;
1824 
1825 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1826 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1827 		hda_nid_t pin_nid = per_pin->pin_nid;
1828 
1829 		hdmi_init_pin(codec, pin_nid);
1830 		snd_hda_jack_detect_enable(codec, pin_nid, pin_nid);
1831 	}
1832 	return 0;
1833 }
1834 
1835 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
1836 {
1837 	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
1838 	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
1839 	snd_array_init(&spec->pcm_rec, sizeof(struct hda_pcm), nums);
1840 }
1841 
1842 static void hdmi_array_free(struct hdmi_spec *spec)
1843 {
1844 	snd_array_free(&spec->pins);
1845 	snd_array_free(&spec->cvts);
1846 	snd_array_free(&spec->pcm_rec);
1847 }
1848 
1849 static void generic_hdmi_free(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 		struct hdmi_eld *eld = &per_pin->sink_eld;
1857 
1858 		cancel_delayed_work(&per_pin->work);
1859 		snd_hda_eld_proc_free(codec, eld);
1860 	}
1861 
1862 	flush_workqueue(codec->bus->workq);
1863 	hdmi_array_free(spec);
1864 	kfree(spec);
1865 }
1866 
1867 #ifdef CONFIG_PM
1868 static int generic_hdmi_resume(struct hda_codec *codec)
1869 {
1870 	struct hdmi_spec *spec = codec->spec;
1871 	int pin_idx;
1872 
1873 	generic_hdmi_init(codec);
1874 	snd_hda_codec_resume_amp(codec);
1875 	snd_hda_codec_resume_cache(codec);
1876 
1877 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1878 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1879 		hdmi_present_sense(per_pin, 1);
1880 	}
1881 	return 0;
1882 }
1883 #endif
1884 
1885 static const struct hda_codec_ops generic_hdmi_patch_ops = {
1886 	.init			= generic_hdmi_init,
1887 	.free			= generic_hdmi_free,
1888 	.build_pcms		= generic_hdmi_build_pcms,
1889 	.build_controls		= generic_hdmi_build_controls,
1890 	.unsol_event		= hdmi_unsol_event,
1891 #ifdef CONFIG_PM
1892 	.resume			= generic_hdmi_resume,
1893 #endif
1894 };
1895 
1896 
1897 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1898 					     hda_nid_t nid)
1899 {
1900 	struct hdmi_spec *spec = codec->spec;
1901 	hda_nid_t conns[4];
1902 	int nconns;
1903 
1904 	nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
1905 	if (nconns == spec->num_cvts &&
1906 	    !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
1907 		return;
1908 
1909 	/* override pins connection list */
1910 	snd_printdd("hdmi: haswell: override pin connection 0x%x\n", nid);
1911 	snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
1912 }
1913 
1914 #define INTEL_VENDOR_NID 0x08
1915 #define INTEL_GET_VENDOR_VERB 0xf81
1916 #define INTEL_SET_VENDOR_VERB 0x781
1917 #define INTEL_EN_DP12			0x02 /* enable DP 1.2 features */
1918 #define INTEL_EN_ALL_PIN_CVTS	0x01 /* enable 2nd & 3rd pins and convertors */
1919 
1920 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
1921 					  bool update_tree)
1922 {
1923 	unsigned int vendor_param;
1924 
1925 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1926 				INTEL_GET_VENDOR_VERB, 0);
1927 	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1928 		return;
1929 
1930 	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1931 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1932 				INTEL_SET_VENDOR_VERB, vendor_param);
1933 	if (vendor_param == -1)
1934 		return;
1935 
1936 	if (update_tree)
1937 		snd_hda_codec_update_widgets(codec);
1938 }
1939 
1940 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
1941 {
1942 	unsigned int vendor_param;
1943 
1944 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1945 				INTEL_GET_VENDOR_VERB, 0);
1946 	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1947 		return;
1948 
1949 	/* enable DP1.2 mode */
1950 	vendor_param |= INTEL_EN_DP12;
1951 	snd_hda_codec_write_cache(codec, INTEL_VENDOR_NID, 0,
1952 				INTEL_SET_VENDOR_VERB, vendor_param);
1953 }
1954 
1955 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
1956  * Otherwise you may get severe h/w communication errors.
1957  */
1958 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1959 				unsigned int power_state)
1960 {
1961 	if (power_state == AC_PWRST_D0) {
1962 		intel_haswell_enable_all_pins(codec, false);
1963 		intel_haswell_fixup_enable_dp12(codec);
1964 	}
1965 
1966 	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
1967 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
1968 }
1969 
1970 static int patch_generic_hdmi(struct hda_codec *codec)
1971 {
1972 	struct hdmi_spec *spec;
1973 
1974 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
1975 	if (spec == NULL)
1976 		return -ENOMEM;
1977 
1978 	codec->spec = spec;
1979 	hdmi_array_init(spec, 4);
1980 
1981 	if (codec->vendor_id == 0x80862807) {
1982 		intel_haswell_enable_all_pins(codec, true);
1983 		intel_haswell_fixup_enable_dp12(codec);
1984 	}
1985 
1986 	if (hdmi_parse_codec(codec) < 0) {
1987 		codec->spec = NULL;
1988 		kfree(spec);
1989 		return -EINVAL;
1990 	}
1991 	codec->patch_ops = generic_hdmi_patch_ops;
1992 	if (codec->vendor_id == 0x80862807)
1993 		codec->patch_ops.set_power_state = haswell_set_power_state;
1994 
1995 	generic_hdmi_init_per_pins(codec);
1996 
1997 	init_channel_allocations();
1998 
1999 	return 0;
2000 }
2001 
2002 /*
2003  * Shared non-generic implementations
2004  */
2005 
2006 static int simple_playback_build_pcms(struct hda_codec *codec)
2007 {
2008 	struct hdmi_spec *spec = codec->spec;
2009 	struct hda_pcm *info;
2010 	unsigned int chans;
2011 	struct hda_pcm_stream *pstr;
2012 	struct hdmi_spec_per_cvt *per_cvt;
2013 
2014 	per_cvt = get_cvt(spec, 0);
2015 	chans = get_wcaps(codec, per_cvt->cvt_nid);
2016 	chans = get_wcaps_channels(chans);
2017 
2018 	info = snd_array_new(&spec->pcm_rec);
2019 	if (!info)
2020 		return -ENOMEM;
2021 	info->name = get_pin(spec, 0)->pcm_name;
2022 	sprintf(info->name, "HDMI 0");
2023 	info->pcm_type = HDA_PCM_TYPE_HDMI;
2024 	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2025 	*pstr = spec->pcm_playback;
2026 	pstr->nid = per_cvt->cvt_nid;
2027 	if (pstr->channels_max <= 2 && chans && chans <= 16)
2028 		pstr->channels_max = chans;
2029 
2030 	codec->num_pcms = 1;
2031 	codec->pcm_info = info;
2032 
2033 	return 0;
2034 }
2035 
2036 /* unsolicited event for jack sensing */
2037 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2038 				    unsigned int res)
2039 {
2040 	snd_hda_jack_set_dirty_all(codec);
2041 	snd_hda_jack_report_sync(codec);
2042 }
2043 
2044 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2045  * as long as spec->pins[] is set correctly
2046  */
2047 #define simple_hdmi_build_jack	generic_hdmi_build_jack
2048 
2049 static int simple_playback_build_controls(struct hda_codec *codec)
2050 {
2051 	struct hdmi_spec *spec = codec->spec;
2052 	struct hdmi_spec_per_cvt *per_cvt;
2053 	int err;
2054 
2055 	per_cvt = get_cvt(spec, 0);
2056 	err = snd_hda_create_spdif_out_ctls(codec, per_cvt->cvt_nid,
2057 					    per_cvt->cvt_nid);
2058 	if (err < 0)
2059 		return err;
2060 	return simple_hdmi_build_jack(codec, 0);
2061 }
2062 
2063 static int simple_playback_init(struct hda_codec *codec)
2064 {
2065 	struct hdmi_spec *spec = codec->spec;
2066 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2067 	hda_nid_t pin = per_pin->pin_nid;
2068 
2069 	snd_hda_codec_write(codec, pin, 0,
2070 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2071 	/* some codecs require to unmute the pin */
2072 	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2073 		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2074 				    AMP_OUT_UNMUTE);
2075 	snd_hda_jack_detect_enable(codec, pin, pin);
2076 	return 0;
2077 }
2078 
2079 static void simple_playback_free(struct hda_codec *codec)
2080 {
2081 	struct hdmi_spec *spec = codec->spec;
2082 
2083 	hdmi_array_free(spec);
2084 	kfree(spec);
2085 }
2086 
2087 /*
2088  * Nvidia specific implementations
2089  */
2090 
2091 #define Nv_VERB_SET_Channel_Allocation          0xF79
2092 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2093 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2094 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2095 
2096 #define nvhdmi_master_con_nid_7x	0x04
2097 #define nvhdmi_master_pin_nid_7x	0x05
2098 
2099 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2100 	/*front, rear, clfe, rear_surr */
2101 	0x6, 0x8, 0xa, 0xc,
2102 };
2103 
2104 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2105 	/* set audio protect on */
2106 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2107 	/* enable digital output on pin widget */
2108 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2109 	{} /* terminator */
2110 };
2111 
2112 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2113 	/* set audio protect on */
2114 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2115 	/* enable digital output on pin widget */
2116 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2117 	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2118 	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2119 	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2120 	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2121 	{} /* terminator */
2122 };
2123 
2124 #ifdef LIMITED_RATE_FMT_SUPPORT
2125 /* support only the safe format and rate */
2126 #define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
2127 #define SUPPORTED_MAXBPS	16
2128 #define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
2129 #else
2130 /* support all rates and formats */
2131 #define SUPPORTED_RATES \
2132 	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2133 	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2134 	 SNDRV_PCM_RATE_192000)
2135 #define SUPPORTED_MAXBPS	24
2136 #define SUPPORTED_FORMATS \
2137 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2138 #endif
2139 
2140 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2141 {
2142 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2143 	return 0;
2144 }
2145 
2146 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2147 {
2148 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2149 	return 0;
2150 }
2151 
2152 static unsigned int channels_2_6_8[] = {
2153 	2, 6, 8
2154 };
2155 
2156 static unsigned int channels_2_8[] = {
2157 	2, 8
2158 };
2159 
2160 static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2161 	.count = ARRAY_SIZE(channels_2_6_8),
2162 	.list = channels_2_6_8,
2163 	.mask = 0,
2164 };
2165 
2166 static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2167 	.count = ARRAY_SIZE(channels_2_8),
2168 	.list = channels_2_8,
2169 	.mask = 0,
2170 };
2171 
2172 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2173 				    struct hda_codec *codec,
2174 				    struct snd_pcm_substream *substream)
2175 {
2176 	struct hdmi_spec *spec = codec->spec;
2177 	struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2178 
2179 	switch (codec->preset->id) {
2180 	case 0x10de0002:
2181 	case 0x10de0003:
2182 	case 0x10de0005:
2183 	case 0x10de0006:
2184 		hw_constraints_channels = &hw_constraints_2_8_channels;
2185 		break;
2186 	case 0x10de0007:
2187 		hw_constraints_channels = &hw_constraints_2_6_8_channels;
2188 		break;
2189 	default:
2190 		break;
2191 	}
2192 
2193 	if (hw_constraints_channels != NULL) {
2194 		snd_pcm_hw_constraint_list(substream->runtime, 0,
2195 				SNDRV_PCM_HW_PARAM_CHANNELS,
2196 				hw_constraints_channels);
2197 	} else {
2198 		snd_pcm_hw_constraint_step(substream->runtime, 0,
2199 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2200 	}
2201 
2202 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2203 }
2204 
2205 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2206 				     struct hda_codec *codec,
2207 				     struct snd_pcm_substream *substream)
2208 {
2209 	struct hdmi_spec *spec = codec->spec;
2210 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2211 }
2212 
2213 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2214 				       struct hda_codec *codec,
2215 				       unsigned int stream_tag,
2216 				       unsigned int format,
2217 				       struct snd_pcm_substream *substream)
2218 {
2219 	struct hdmi_spec *spec = codec->spec;
2220 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2221 					     stream_tag, format, substream);
2222 }
2223 
2224 static const struct hda_pcm_stream simple_pcm_playback = {
2225 	.substreams = 1,
2226 	.channels_min = 2,
2227 	.channels_max = 2,
2228 	.ops = {
2229 		.open = simple_playback_pcm_open,
2230 		.close = simple_playback_pcm_close,
2231 		.prepare = simple_playback_pcm_prepare
2232 	},
2233 };
2234 
2235 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2236 	.build_controls = simple_playback_build_controls,
2237 	.build_pcms = simple_playback_build_pcms,
2238 	.init = simple_playback_init,
2239 	.free = simple_playback_free,
2240 	.unsol_event = simple_hdmi_unsol_event,
2241 };
2242 
2243 static int patch_simple_hdmi(struct hda_codec *codec,
2244 			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
2245 {
2246 	struct hdmi_spec *spec;
2247 	struct hdmi_spec_per_cvt *per_cvt;
2248 	struct hdmi_spec_per_pin *per_pin;
2249 
2250 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2251 	if (!spec)
2252 		return -ENOMEM;
2253 
2254 	codec->spec = spec;
2255 	hdmi_array_init(spec, 1);
2256 
2257 	spec->multiout.num_dacs = 0;  /* no analog */
2258 	spec->multiout.max_channels = 2;
2259 	spec->multiout.dig_out_nid = cvt_nid;
2260 	spec->num_cvts = 1;
2261 	spec->num_pins = 1;
2262 	per_pin = snd_array_new(&spec->pins);
2263 	per_cvt = snd_array_new(&spec->cvts);
2264 	if (!per_pin || !per_cvt) {
2265 		simple_playback_free(codec);
2266 		return -ENOMEM;
2267 	}
2268 	per_cvt->cvt_nid = cvt_nid;
2269 	per_pin->pin_nid = pin_nid;
2270 	spec->pcm_playback = simple_pcm_playback;
2271 
2272 	codec->patch_ops = simple_hdmi_patch_ops;
2273 
2274 	return 0;
2275 }
2276 
2277 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2278 						    int channels)
2279 {
2280 	unsigned int chanmask;
2281 	int chan = channels ? (channels - 1) : 1;
2282 
2283 	switch (channels) {
2284 	default:
2285 	case 0:
2286 	case 2:
2287 		chanmask = 0x00;
2288 		break;
2289 	case 4:
2290 		chanmask = 0x08;
2291 		break;
2292 	case 6:
2293 		chanmask = 0x0b;
2294 		break;
2295 	case 8:
2296 		chanmask = 0x13;
2297 		break;
2298 	}
2299 
2300 	/* Set the audio infoframe channel allocation and checksum fields.  The
2301 	 * channel count is computed implicitly by the hardware. */
2302 	snd_hda_codec_write(codec, 0x1, 0,
2303 			Nv_VERB_SET_Channel_Allocation, chanmask);
2304 
2305 	snd_hda_codec_write(codec, 0x1, 0,
2306 			Nv_VERB_SET_Info_Frame_Checksum,
2307 			(0x71 - chan - chanmask));
2308 }
2309 
2310 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
2311 				   struct hda_codec *codec,
2312 				   struct snd_pcm_substream *substream)
2313 {
2314 	struct hdmi_spec *spec = codec->spec;
2315 	int i;
2316 
2317 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
2318 			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
2319 	for (i = 0; i < 4; i++) {
2320 		/* set the stream id */
2321 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2322 				AC_VERB_SET_CHANNEL_STREAMID, 0);
2323 		/* set the stream format */
2324 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2325 				AC_VERB_SET_STREAM_FORMAT, 0);
2326 	}
2327 
2328 	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
2329 	 * streams are disabled. */
2330 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2331 
2332 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2333 }
2334 
2335 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
2336 				     struct hda_codec *codec,
2337 				     unsigned int stream_tag,
2338 				     unsigned int format,
2339 				     struct snd_pcm_substream *substream)
2340 {
2341 	int chs;
2342 	unsigned int dataDCC2, channel_id;
2343 	int i;
2344 	struct hdmi_spec *spec = codec->spec;
2345 	struct hda_spdif_out *spdif;
2346 	struct hdmi_spec_per_cvt *per_cvt;
2347 
2348 	mutex_lock(&codec->spdif_mutex);
2349 	per_cvt = get_cvt(spec, 0);
2350 	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
2351 
2352 	chs = substream->runtime->channels;
2353 
2354 	dataDCC2 = 0x2;
2355 
2356 	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2357 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
2358 		snd_hda_codec_write(codec,
2359 				nvhdmi_master_con_nid_7x,
2360 				0,
2361 				AC_VERB_SET_DIGI_CONVERT_1,
2362 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2363 
2364 	/* set the stream id */
2365 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2366 			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
2367 
2368 	/* set the stream format */
2369 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2370 			AC_VERB_SET_STREAM_FORMAT, format);
2371 
2372 	/* turn on again (if needed) */
2373 	/* enable and set the channel status audio/data flag */
2374 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
2375 		snd_hda_codec_write(codec,
2376 				nvhdmi_master_con_nid_7x,
2377 				0,
2378 				AC_VERB_SET_DIGI_CONVERT_1,
2379 				spdif->ctls & 0xff);
2380 		snd_hda_codec_write(codec,
2381 				nvhdmi_master_con_nid_7x,
2382 				0,
2383 				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2384 	}
2385 
2386 	for (i = 0; i < 4; i++) {
2387 		if (chs == 2)
2388 			channel_id = 0;
2389 		else
2390 			channel_id = i * 2;
2391 
2392 		/* turn off SPDIF once;
2393 		 *otherwise the IEC958 bits won't be updated
2394 		 */
2395 		if (codec->spdif_status_reset &&
2396 		(spdif->ctls & AC_DIG1_ENABLE))
2397 			snd_hda_codec_write(codec,
2398 				nvhdmi_con_nids_7x[i],
2399 				0,
2400 				AC_VERB_SET_DIGI_CONVERT_1,
2401 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2402 		/* set the stream id */
2403 		snd_hda_codec_write(codec,
2404 				nvhdmi_con_nids_7x[i],
2405 				0,
2406 				AC_VERB_SET_CHANNEL_STREAMID,
2407 				(stream_tag << 4) | channel_id);
2408 		/* set the stream format */
2409 		snd_hda_codec_write(codec,
2410 				nvhdmi_con_nids_7x[i],
2411 				0,
2412 				AC_VERB_SET_STREAM_FORMAT,
2413 				format);
2414 		/* turn on again (if needed) */
2415 		/* enable and set the channel status audio/data flag */
2416 		if (codec->spdif_status_reset &&
2417 		(spdif->ctls & AC_DIG1_ENABLE)) {
2418 			snd_hda_codec_write(codec,
2419 					nvhdmi_con_nids_7x[i],
2420 					0,
2421 					AC_VERB_SET_DIGI_CONVERT_1,
2422 					spdif->ctls & 0xff);
2423 			snd_hda_codec_write(codec,
2424 					nvhdmi_con_nids_7x[i],
2425 					0,
2426 					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2427 		}
2428 	}
2429 
2430 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
2431 
2432 	mutex_unlock(&codec->spdif_mutex);
2433 	return 0;
2434 }
2435 
2436 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
2437 	.substreams = 1,
2438 	.channels_min = 2,
2439 	.channels_max = 8,
2440 	.nid = nvhdmi_master_con_nid_7x,
2441 	.rates = SUPPORTED_RATES,
2442 	.maxbps = SUPPORTED_MAXBPS,
2443 	.formats = SUPPORTED_FORMATS,
2444 	.ops = {
2445 		.open = simple_playback_pcm_open,
2446 		.close = nvhdmi_8ch_7x_pcm_close,
2447 		.prepare = nvhdmi_8ch_7x_pcm_prepare
2448 	},
2449 };
2450 
2451 static int patch_nvhdmi_2ch(struct hda_codec *codec)
2452 {
2453 	struct hdmi_spec *spec;
2454 	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
2455 				    nvhdmi_master_pin_nid_7x);
2456 	if (err < 0)
2457 		return err;
2458 
2459 	codec->patch_ops.init = nvhdmi_7x_init_2ch;
2460 	/* override the PCM rates, etc, as the codec doesn't give full list */
2461 	spec = codec->spec;
2462 	spec->pcm_playback.rates = SUPPORTED_RATES;
2463 	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
2464 	spec->pcm_playback.formats = SUPPORTED_FORMATS;
2465 	return 0;
2466 }
2467 
2468 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
2469 {
2470 	struct hdmi_spec *spec = codec->spec;
2471 	int err = simple_playback_build_pcms(codec);
2472 	if (!err) {
2473 		struct hda_pcm *info = get_pcm_rec(spec, 0);
2474 		info->own_chmap = true;
2475 	}
2476 	return err;
2477 }
2478 
2479 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
2480 {
2481 	struct hdmi_spec *spec = codec->spec;
2482 	struct hda_pcm *info;
2483 	struct snd_pcm_chmap *chmap;
2484 	int err;
2485 
2486 	err = simple_playback_build_controls(codec);
2487 	if (err < 0)
2488 		return err;
2489 
2490 	/* add channel maps */
2491 	info = get_pcm_rec(spec, 0);
2492 	err = snd_pcm_add_chmap_ctls(info->pcm,
2493 				     SNDRV_PCM_STREAM_PLAYBACK,
2494 				     snd_pcm_alt_chmaps, 8, 0, &chmap);
2495 	if (err < 0)
2496 		return err;
2497 	switch (codec->preset->id) {
2498 	case 0x10de0002:
2499 	case 0x10de0003:
2500 	case 0x10de0005:
2501 	case 0x10de0006:
2502 		chmap->channel_mask = (1U << 2) | (1U << 8);
2503 		break;
2504 	case 0x10de0007:
2505 		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
2506 	}
2507 	return 0;
2508 }
2509 
2510 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
2511 {
2512 	struct hdmi_spec *spec;
2513 	int err = patch_nvhdmi_2ch(codec);
2514 	if (err < 0)
2515 		return err;
2516 	spec = codec->spec;
2517 	spec->multiout.max_channels = 8;
2518 	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
2519 	codec->patch_ops.init = nvhdmi_7x_init_8ch;
2520 	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
2521 	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
2522 
2523 	/* Initialize the audio infoframe channel mask and checksum to something
2524 	 * valid */
2525 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2526 
2527 	return 0;
2528 }
2529 
2530 /*
2531  * ATI-specific implementations
2532  *
2533  * FIXME: we may omit the whole this and use the generic code once after
2534  * it's confirmed to work.
2535  */
2536 
2537 #define ATIHDMI_CVT_NID		0x02	/* audio converter */
2538 #define ATIHDMI_PIN_NID		0x03	/* HDMI output pin */
2539 
2540 static int atihdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2541 					struct hda_codec *codec,
2542 					unsigned int stream_tag,
2543 					unsigned int format,
2544 					struct snd_pcm_substream *substream)
2545 {
2546 	struct hdmi_spec *spec = codec->spec;
2547 	struct hdmi_spec_per_cvt *per_cvt = get_cvt(spec, 0);
2548 	int chans = substream->runtime->channels;
2549 	int i, err;
2550 
2551 	err = simple_playback_pcm_prepare(hinfo, codec, stream_tag, format,
2552 					  substream);
2553 	if (err < 0)
2554 		return err;
2555 	snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
2556 			    AC_VERB_SET_CVT_CHAN_COUNT, chans - 1);
2557 	/* FIXME: XXX */
2558 	for (i = 0; i < chans; i++) {
2559 		snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
2560 				    AC_VERB_SET_HDMI_CHAN_SLOT,
2561 				    (i << 4) | i);
2562 	}
2563 	return 0;
2564 }
2565 
2566 static int patch_atihdmi(struct hda_codec *codec)
2567 {
2568 	struct hdmi_spec *spec;
2569 	int err = patch_simple_hdmi(codec, ATIHDMI_CVT_NID, ATIHDMI_PIN_NID);
2570 	if (err < 0)
2571 		return err;
2572 	spec = codec->spec;
2573 	spec->pcm_playback.ops.prepare = atihdmi_playback_pcm_prepare;
2574 	return 0;
2575 }
2576 
2577 /* VIA HDMI Implementation */
2578 #define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
2579 #define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
2580 
2581 static int patch_via_hdmi(struct hda_codec *codec)
2582 {
2583 	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
2584 }
2585 
2586 /*
2587  * patch entries
2588  */
2589 static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
2590 { .id = 0x1002793c, .name = "RS600 HDMI",	.patch = patch_atihdmi },
2591 { .id = 0x10027919, .name = "RS600 HDMI",	.patch = patch_atihdmi },
2592 { .id = 0x1002791a, .name = "RS690/780 HDMI",	.patch = patch_atihdmi },
2593 { .id = 0x1002aa01, .name = "R6xx HDMI",	.patch = patch_generic_hdmi },
2594 { .id = 0x10951390, .name = "SiI1390 HDMI",	.patch = patch_generic_hdmi },
2595 { .id = 0x10951392, .name = "SiI1392 HDMI",	.patch = patch_generic_hdmi },
2596 { .id = 0x17e80047, .name = "Chrontel HDMI",	.patch = patch_generic_hdmi },
2597 { .id = 0x10de0002, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2598 { .id = 0x10de0003, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2599 { .id = 0x10de0005, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2600 { .id = 0x10de0006, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2601 { .id = 0x10de0007, .name = "MCP79/7A HDMI",	.patch = patch_nvhdmi_8ch_7x },
2602 { .id = 0x10de000a, .name = "GPU 0a HDMI/DP",	.patch = patch_generic_hdmi },
2603 { .id = 0x10de000b, .name = "GPU 0b HDMI/DP",	.patch = patch_generic_hdmi },
2604 { .id = 0x10de000c, .name = "MCP89 HDMI",	.patch = patch_generic_hdmi },
2605 { .id = 0x10de000d, .name = "GPU 0d HDMI/DP",	.patch = patch_generic_hdmi },
2606 { .id = 0x10de0010, .name = "GPU 10 HDMI/DP",	.patch = patch_generic_hdmi },
2607 { .id = 0x10de0011, .name = "GPU 11 HDMI/DP",	.patch = patch_generic_hdmi },
2608 { .id = 0x10de0012, .name = "GPU 12 HDMI/DP",	.patch = patch_generic_hdmi },
2609 { .id = 0x10de0013, .name = "GPU 13 HDMI/DP",	.patch = patch_generic_hdmi },
2610 { .id = 0x10de0014, .name = "GPU 14 HDMI/DP",	.patch = patch_generic_hdmi },
2611 { .id = 0x10de0015, .name = "GPU 15 HDMI/DP",	.patch = patch_generic_hdmi },
2612 { .id = 0x10de0016, .name = "GPU 16 HDMI/DP",	.patch = patch_generic_hdmi },
2613 /* 17 is known to be absent */
2614 { .id = 0x10de0018, .name = "GPU 18 HDMI/DP",	.patch = patch_generic_hdmi },
2615 { .id = 0x10de0019, .name = "GPU 19 HDMI/DP",	.patch = patch_generic_hdmi },
2616 { .id = 0x10de001a, .name = "GPU 1a HDMI/DP",	.patch = patch_generic_hdmi },
2617 { .id = 0x10de001b, .name = "GPU 1b HDMI/DP",	.patch = patch_generic_hdmi },
2618 { .id = 0x10de001c, .name = "GPU 1c HDMI/DP",	.patch = patch_generic_hdmi },
2619 { .id = 0x10de0040, .name = "GPU 40 HDMI/DP",	.patch = patch_generic_hdmi },
2620 { .id = 0x10de0041, .name = "GPU 41 HDMI/DP",	.patch = patch_generic_hdmi },
2621 { .id = 0x10de0042, .name = "GPU 42 HDMI/DP",	.patch = patch_generic_hdmi },
2622 { .id = 0x10de0043, .name = "GPU 43 HDMI/DP",	.patch = patch_generic_hdmi },
2623 { .id = 0x10de0044, .name = "GPU 44 HDMI/DP",	.patch = patch_generic_hdmi },
2624 { .id = 0x10de0051, .name = "GPU 51 HDMI/DP",	.patch = patch_generic_hdmi },
2625 { .id = 0x10de0060, .name = "GPU 60 HDMI/DP",	.patch = patch_generic_hdmi },
2626 { .id = 0x10de0067, .name = "MCP67 HDMI",	.patch = patch_nvhdmi_2ch },
2627 { .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
2628 { .id = 0x11069f80, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
2629 { .id = 0x11069f81, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
2630 { .id = 0x11069f84, .name = "VX11 HDMI/DP",	.patch = patch_generic_hdmi },
2631 { .id = 0x11069f85, .name = "VX11 HDMI/DP",	.patch = patch_generic_hdmi },
2632 { .id = 0x80860054, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
2633 { .id = 0x80862801, .name = "Bearlake HDMI",	.patch = patch_generic_hdmi },
2634 { .id = 0x80862802, .name = "Cantiga HDMI",	.patch = patch_generic_hdmi },
2635 { .id = 0x80862803, .name = "Eaglelake HDMI",	.patch = patch_generic_hdmi },
2636 { .id = 0x80862804, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
2637 { .id = 0x80862805, .name = "CougarPoint HDMI",	.patch = patch_generic_hdmi },
2638 { .id = 0x80862806, .name = "PantherPoint HDMI", .patch = patch_generic_hdmi },
2639 { .id = 0x80862807, .name = "Haswell HDMI",	.patch = patch_generic_hdmi },
2640 { .id = 0x80862880, .name = "CedarTrail HDMI",	.patch = patch_generic_hdmi },
2641 { .id = 0x808629fb, .name = "Crestline HDMI",	.patch = patch_generic_hdmi },
2642 {} /* terminator */
2643 };
2644 
2645 MODULE_ALIAS("snd-hda-codec-id:1002793c");
2646 MODULE_ALIAS("snd-hda-codec-id:10027919");
2647 MODULE_ALIAS("snd-hda-codec-id:1002791a");
2648 MODULE_ALIAS("snd-hda-codec-id:1002aa01");
2649 MODULE_ALIAS("snd-hda-codec-id:10951390");
2650 MODULE_ALIAS("snd-hda-codec-id:10951392");
2651 MODULE_ALIAS("snd-hda-codec-id:10de0002");
2652 MODULE_ALIAS("snd-hda-codec-id:10de0003");
2653 MODULE_ALIAS("snd-hda-codec-id:10de0005");
2654 MODULE_ALIAS("snd-hda-codec-id:10de0006");
2655 MODULE_ALIAS("snd-hda-codec-id:10de0007");
2656 MODULE_ALIAS("snd-hda-codec-id:10de000a");
2657 MODULE_ALIAS("snd-hda-codec-id:10de000b");
2658 MODULE_ALIAS("snd-hda-codec-id:10de000c");
2659 MODULE_ALIAS("snd-hda-codec-id:10de000d");
2660 MODULE_ALIAS("snd-hda-codec-id:10de0010");
2661 MODULE_ALIAS("snd-hda-codec-id:10de0011");
2662 MODULE_ALIAS("snd-hda-codec-id:10de0012");
2663 MODULE_ALIAS("snd-hda-codec-id:10de0013");
2664 MODULE_ALIAS("snd-hda-codec-id:10de0014");
2665 MODULE_ALIAS("snd-hda-codec-id:10de0015");
2666 MODULE_ALIAS("snd-hda-codec-id:10de0016");
2667 MODULE_ALIAS("snd-hda-codec-id:10de0018");
2668 MODULE_ALIAS("snd-hda-codec-id:10de0019");
2669 MODULE_ALIAS("snd-hda-codec-id:10de001a");
2670 MODULE_ALIAS("snd-hda-codec-id:10de001b");
2671 MODULE_ALIAS("snd-hda-codec-id:10de001c");
2672 MODULE_ALIAS("snd-hda-codec-id:10de0040");
2673 MODULE_ALIAS("snd-hda-codec-id:10de0041");
2674 MODULE_ALIAS("snd-hda-codec-id:10de0042");
2675 MODULE_ALIAS("snd-hda-codec-id:10de0043");
2676 MODULE_ALIAS("snd-hda-codec-id:10de0044");
2677 MODULE_ALIAS("snd-hda-codec-id:10de0051");
2678 MODULE_ALIAS("snd-hda-codec-id:10de0060");
2679 MODULE_ALIAS("snd-hda-codec-id:10de0067");
2680 MODULE_ALIAS("snd-hda-codec-id:10de8001");
2681 MODULE_ALIAS("snd-hda-codec-id:11069f80");
2682 MODULE_ALIAS("snd-hda-codec-id:11069f81");
2683 MODULE_ALIAS("snd-hda-codec-id:11069f84");
2684 MODULE_ALIAS("snd-hda-codec-id:11069f85");
2685 MODULE_ALIAS("snd-hda-codec-id:17e80047");
2686 MODULE_ALIAS("snd-hda-codec-id:80860054");
2687 MODULE_ALIAS("snd-hda-codec-id:80862801");
2688 MODULE_ALIAS("snd-hda-codec-id:80862802");
2689 MODULE_ALIAS("snd-hda-codec-id:80862803");
2690 MODULE_ALIAS("snd-hda-codec-id:80862804");
2691 MODULE_ALIAS("snd-hda-codec-id:80862805");
2692 MODULE_ALIAS("snd-hda-codec-id:80862806");
2693 MODULE_ALIAS("snd-hda-codec-id:80862807");
2694 MODULE_ALIAS("snd-hda-codec-id:80862880");
2695 MODULE_ALIAS("snd-hda-codec-id:808629fb");
2696 
2697 MODULE_LICENSE("GPL");
2698 MODULE_DESCRIPTION("HDMI HD-audio codec");
2699 MODULE_ALIAS("snd-hda-codec-intelhdmi");
2700 MODULE_ALIAS("snd-hda-codec-nvhdmi");
2701 MODULE_ALIAS("snd-hda-codec-atihdmi");
2702 
2703 static struct hda_codec_preset_list intel_list = {
2704 	.preset = snd_hda_preset_hdmi,
2705 	.owner = THIS_MODULE,
2706 };
2707 
2708 static int __init patch_hdmi_init(void)
2709 {
2710 	return snd_hda_add_codec_preset(&intel_list);
2711 }
2712 
2713 static void __exit patch_hdmi_exit(void)
2714 {
2715 	snd_hda_delete_codec_preset(&intel_list);
2716 }
2717 
2718 module_init(patch_hdmi_init)
2719 module_exit(patch_hdmi_exit)
2720