xref: /openbmc/linux/sound/pci/hda/patch_hdmi.c (revision c1d45424)
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 
1785 		if (!codec->pcm_info[pin_idx].pcm)
1786 			break;
1787 		err = snd_pcm_add_chmap_ctls(codec->pcm_info[pin_idx].pcm,
1788 					     SNDRV_PCM_STREAM_PLAYBACK,
1789 					     NULL, 0, pin_idx, &chmap);
1790 		if (err < 0)
1791 			return err;
1792 		/* override handlers */
1793 		chmap->private_data = codec;
1794 		kctl = chmap->kctl;
1795 		for (i = 0; i < kctl->count; i++)
1796 			kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
1797 		kctl->info = hdmi_chmap_ctl_info;
1798 		kctl->get = hdmi_chmap_ctl_get;
1799 		kctl->put = hdmi_chmap_ctl_put;
1800 		kctl->tlv.c = hdmi_chmap_ctl_tlv;
1801 	}
1802 
1803 	return 0;
1804 }
1805 
1806 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
1807 {
1808 	struct hdmi_spec *spec = codec->spec;
1809 	int pin_idx;
1810 
1811 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1812 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1813 		struct hdmi_eld *eld = &per_pin->sink_eld;
1814 
1815 		per_pin->codec = codec;
1816 		mutex_init(&eld->lock);
1817 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
1818 		snd_hda_eld_proc_new(codec, eld, pin_idx);
1819 	}
1820 	return 0;
1821 }
1822 
1823 static int generic_hdmi_init(struct hda_codec *codec)
1824 {
1825 	struct hdmi_spec *spec = codec->spec;
1826 	int pin_idx;
1827 
1828 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1829 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1830 		hda_nid_t pin_nid = per_pin->pin_nid;
1831 
1832 		hdmi_init_pin(codec, pin_nid);
1833 		snd_hda_jack_detect_enable(codec, pin_nid, pin_nid);
1834 	}
1835 	return 0;
1836 }
1837 
1838 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
1839 {
1840 	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
1841 	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
1842 	snd_array_init(&spec->pcm_rec, sizeof(struct hda_pcm), nums);
1843 }
1844 
1845 static void hdmi_array_free(struct hdmi_spec *spec)
1846 {
1847 	snd_array_free(&spec->pins);
1848 	snd_array_free(&spec->cvts);
1849 	snd_array_free(&spec->pcm_rec);
1850 }
1851 
1852 static void generic_hdmi_free(struct hda_codec *codec)
1853 {
1854 	struct hdmi_spec *spec = codec->spec;
1855 	int pin_idx;
1856 
1857 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1858 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1859 		struct hdmi_eld *eld = &per_pin->sink_eld;
1860 
1861 		cancel_delayed_work(&per_pin->work);
1862 		snd_hda_eld_proc_free(codec, eld);
1863 	}
1864 
1865 	flush_workqueue(codec->bus->workq);
1866 	hdmi_array_free(spec);
1867 	kfree(spec);
1868 }
1869 
1870 #ifdef CONFIG_PM
1871 static int generic_hdmi_resume(struct hda_codec *codec)
1872 {
1873 	struct hdmi_spec *spec = codec->spec;
1874 	int pin_idx;
1875 
1876 	generic_hdmi_init(codec);
1877 	snd_hda_codec_resume_amp(codec);
1878 	snd_hda_codec_resume_cache(codec);
1879 
1880 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1881 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1882 		hdmi_present_sense(per_pin, 1);
1883 	}
1884 	return 0;
1885 }
1886 #endif
1887 
1888 static const struct hda_codec_ops generic_hdmi_patch_ops = {
1889 	.init			= generic_hdmi_init,
1890 	.free			= generic_hdmi_free,
1891 	.build_pcms		= generic_hdmi_build_pcms,
1892 	.build_controls		= generic_hdmi_build_controls,
1893 	.unsol_event		= hdmi_unsol_event,
1894 #ifdef CONFIG_PM
1895 	.resume			= generic_hdmi_resume,
1896 #endif
1897 };
1898 
1899 
1900 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1901 					     hda_nid_t nid)
1902 {
1903 	struct hdmi_spec *spec = codec->spec;
1904 	hda_nid_t conns[4];
1905 	int nconns;
1906 
1907 	nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
1908 	if (nconns == spec->num_cvts &&
1909 	    !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
1910 		return;
1911 
1912 	/* override pins connection list */
1913 	snd_printdd("hdmi: haswell: override pin connection 0x%x\n", nid);
1914 	snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
1915 }
1916 
1917 #define INTEL_VENDOR_NID 0x08
1918 #define INTEL_GET_VENDOR_VERB 0xf81
1919 #define INTEL_SET_VENDOR_VERB 0x781
1920 #define INTEL_EN_DP12			0x02 /* enable DP 1.2 features */
1921 #define INTEL_EN_ALL_PIN_CVTS	0x01 /* enable 2nd & 3rd pins and convertors */
1922 
1923 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
1924 					  bool update_tree)
1925 {
1926 	unsigned int vendor_param;
1927 
1928 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1929 				INTEL_GET_VENDOR_VERB, 0);
1930 	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1931 		return;
1932 
1933 	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1934 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1935 				INTEL_SET_VENDOR_VERB, vendor_param);
1936 	if (vendor_param == -1)
1937 		return;
1938 
1939 	if (update_tree)
1940 		snd_hda_codec_update_widgets(codec);
1941 }
1942 
1943 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
1944 {
1945 	unsigned int vendor_param;
1946 
1947 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
1948 				INTEL_GET_VENDOR_VERB, 0);
1949 	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1950 		return;
1951 
1952 	/* enable DP1.2 mode */
1953 	vendor_param |= INTEL_EN_DP12;
1954 	snd_hda_codec_write_cache(codec, INTEL_VENDOR_NID, 0,
1955 				INTEL_SET_VENDOR_VERB, vendor_param);
1956 }
1957 
1958 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
1959  * Otherwise you may get severe h/w communication errors.
1960  */
1961 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1962 				unsigned int power_state)
1963 {
1964 	if (power_state == AC_PWRST_D0) {
1965 		intel_haswell_enable_all_pins(codec, false);
1966 		intel_haswell_fixup_enable_dp12(codec);
1967 	}
1968 
1969 	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
1970 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
1971 }
1972 
1973 static int patch_generic_hdmi(struct hda_codec *codec)
1974 {
1975 	struct hdmi_spec *spec;
1976 
1977 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
1978 	if (spec == NULL)
1979 		return -ENOMEM;
1980 
1981 	codec->spec = spec;
1982 	hdmi_array_init(spec, 4);
1983 
1984 	if (codec->vendor_id == 0x80862807) {
1985 		intel_haswell_enable_all_pins(codec, true);
1986 		intel_haswell_fixup_enable_dp12(codec);
1987 	}
1988 
1989 	if (hdmi_parse_codec(codec) < 0) {
1990 		codec->spec = NULL;
1991 		kfree(spec);
1992 		return -EINVAL;
1993 	}
1994 	codec->patch_ops = generic_hdmi_patch_ops;
1995 	if (codec->vendor_id == 0x80862807)
1996 		codec->patch_ops.set_power_state = haswell_set_power_state;
1997 
1998 	generic_hdmi_init_per_pins(codec);
1999 
2000 	init_channel_allocations();
2001 
2002 	return 0;
2003 }
2004 
2005 /*
2006  * Shared non-generic implementations
2007  */
2008 
2009 static int simple_playback_build_pcms(struct hda_codec *codec)
2010 {
2011 	struct hdmi_spec *spec = codec->spec;
2012 	struct hda_pcm *info;
2013 	unsigned int chans;
2014 	struct hda_pcm_stream *pstr;
2015 	struct hdmi_spec_per_cvt *per_cvt;
2016 
2017 	per_cvt = get_cvt(spec, 0);
2018 	chans = get_wcaps(codec, per_cvt->cvt_nid);
2019 	chans = get_wcaps_channels(chans);
2020 
2021 	info = snd_array_new(&spec->pcm_rec);
2022 	if (!info)
2023 		return -ENOMEM;
2024 	info->name = get_pin(spec, 0)->pcm_name;
2025 	sprintf(info->name, "HDMI 0");
2026 	info->pcm_type = HDA_PCM_TYPE_HDMI;
2027 	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2028 	*pstr = spec->pcm_playback;
2029 	pstr->nid = per_cvt->cvt_nid;
2030 	if (pstr->channels_max <= 2 && chans && chans <= 16)
2031 		pstr->channels_max = chans;
2032 
2033 	codec->num_pcms = 1;
2034 	codec->pcm_info = info;
2035 
2036 	return 0;
2037 }
2038 
2039 /* unsolicited event for jack sensing */
2040 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2041 				    unsigned int res)
2042 {
2043 	snd_hda_jack_set_dirty_all(codec);
2044 	snd_hda_jack_report_sync(codec);
2045 }
2046 
2047 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2048  * as long as spec->pins[] is set correctly
2049  */
2050 #define simple_hdmi_build_jack	generic_hdmi_build_jack
2051 
2052 static int simple_playback_build_controls(struct hda_codec *codec)
2053 {
2054 	struct hdmi_spec *spec = codec->spec;
2055 	struct hdmi_spec_per_cvt *per_cvt;
2056 	int err;
2057 
2058 	per_cvt = get_cvt(spec, 0);
2059 	err = snd_hda_create_spdif_out_ctls(codec, per_cvt->cvt_nid,
2060 					    per_cvt->cvt_nid);
2061 	if (err < 0)
2062 		return err;
2063 	return simple_hdmi_build_jack(codec, 0);
2064 }
2065 
2066 static int simple_playback_init(struct hda_codec *codec)
2067 {
2068 	struct hdmi_spec *spec = codec->spec;
2069 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2070 	hda_nid_t pin = per_pin->pin_nid;
2071 
2072 	snd_hda_codec_write(codec, pin, 0,
2073 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2074 	/* some codecs require to unmute the pin */
2075 	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2076 		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2077 				    AMP_OUT_UNMUTE);
2078 	snd_hda_jack_detect_enable(codec, pin, pin);
2079 	return 0;
2080 }
2081 
2082 static void simple_playback_free(struct hda_codec *codec)
2083 {
2084 	struct hdmi_spec *spec = codec->spec;
2085 
2086 	hdmi_array_free(spec);
2087 	kfree(spec);
2088 }
2089 
2090 /*
2091  * Nvidia specific implementations
2092  */
2093 
2094 #define Nv_VERB_SET_Channel_Allocation          0xF79
2095 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2096 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2097 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2098 
2099 #define nvhdmi_master_con_nid_7x	0x04
2100 #define nvhdmi_master_pin_nid_7x	0x05
2101 
2102 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2103 	/*front, rear, clfe, rear_surr */
2104 	0x6, 0x8, 0xa, 0xc,
2105 };
2106 
2107 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2108 	/* set audio protect on */
2109 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2110 	/* enable digital output on pin widget */
2111 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2112 	{} /* terminator */
2113 };
2114 
2115 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2116 	/* set audio protect on */
2117 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2118 	/* enable digital output on pin widget */
2119 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2120 	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2121 	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2122 	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2123 	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2124 	{} /* terminator */
2125 };
2126 
2127 #ifdef LIMITED_RATE_FMT_SUPPORT
2128 /* support only the safe format and rate */
2129 #define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
2130 #define SUPPORTED_MAXBPS	16
2131 #define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
2132 #else
2133 /* support all rates and formats */
2134 #define SUPPORTED_RATES \
2135 	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2136 	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2137 	 SNDRV_PCM_RATE_192000)
2138 #define SUPPORTED_MAXBPS	24
2139 #define SUPPORTED_FORMATS \
2140 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2141 #endif
2142 
2143 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2144 {
2145 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2146 	return 0;
2147 }
2148 
2149 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2150 {
2151 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2152 	return 0;
2153 }
2154 
2155 static unsigned int channels_2_6_8[] = {
2156 	2, 6, 8
2157 };
2158 
2159 static unsigned int channels_2_8[] = {
2160 	2, 8
2161 };
2162 
2163 static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2164 	.count = ARRAY_SIZE(channels_2_6_8),
2165 	.list = channels_2_6_8,
2166 	.mask = 0,
2167 };
2168 
2169 static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2170 	.count = ARRAY_SIZE(channels_2_8),
2171 	.list = channels_2_8,
2172 	.mask = 0,
2173 };
2174 
2175 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2176 				    struct hda_codec *codec,
2177 				    struct snd_pcm_substream *substream)
2178 {
2179 	struct hdmi_spec *spec = codec->spec;
2180 	struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2181 
2182 	switch (codec->preset->id) {
2183 	case 0x10de0002:
2184 	case 0x10de0003:
2185 	case 0x10de0005:
2186 	case 0x10de0006:
2187 		hw_constraints_channels = &hw_constraints_2_8_channels;
2188 		break;
2189 	case 0x10de0007:
2190 		hw_constraints_channels = &hw_constraints_2_6_8_channels;
2191 		break;
2192 	default:
2193 		break;
2194 	}
2195 
2196 	if (hw_constraints_channels != NULL) {
2197 		snd_pcm_hw_constraint_list(substream->runtime, 0,
2198 				SNDRV_PCM_HW_PARAM_CHANNELS,
2199 				hw_constraints_channels);
2200 	} else {
2201 		snd_pcm_hw_constraint_step(substream->runtime, 0,
2202 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2203 	}
2204 
2205 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2206 }
2207 
2208 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2209 				     struct hda_codec *codec,
2210 				     struct snd_pcm_substream *substream)
2211 {
2212 	struct hdmi_spec *spec = codec->spec;
2213 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2214 }
2215 
2216 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2217 				       struct hda_codec *codec,
2218 				       unsigned int stream_tag,
2219 				       unsigned int format,
2220 				       struct snd_pcm_substream *substream)
2221 {
2222 	struct hdmi_spec *spec = codec->spec;
2223 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2224 					     stream_tag, format, substream);
2225 }
2226 
2227 static const struct hda_pcm_stream simple_pcm_playback = {
2228 	.substreams = 1,
2229 	.channels_min = 2,
2230 	.channels_max = 2,
2231 	.ops = {
2232 		.open = simple_playback_pcm_open,
2233 		.close = simple_playback_pcm_close,
2234 		.prepare = simple_playback_pcm_prepare
2235 	},
2236 };
2237 
2238 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2239 	.build_controls = simple_playback_build_controls,
2240 	.build_pcms = simple_playback_build_pcms,
2241 	.init = simple_playback_init,
2242 	.free = simple_playback_free,
2243 	.unsol_event = simple_hdmi_unsol_event,
2244 };
2245 
2246 static int patch_simple_hdmi(struct hda_codec *codec,
2247 			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
2248 {
2249 	struct hdmi_spec *spec;
2250 	struct hdmi_spec_per_cvt *per_cvt;
2251 	struct hdmi_spec_per_pin *per_pin;
2252 
2253 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2254 	if (!spec)
2255 		return -ENOMEM;
2256 
2257 	codec->spec = spec;
2258 	hdmi_array_init(spec, 1);
2259 
2260 	spec->multiout.num_dacs = 0;  /* no analog */
2261 	spec->multiout.max_channels = 2;
2262 	spec->multiout.dig_out_nid = cvt_nid;
2263 	spec->num_cvts = 1;
2264 	spec->num_pins = 1;
2265 	per_pin = snd_array_new(&spec->pins);
2266 	per_cvt = snd_array_new(&spec->cvts);
2267 	if (!per_pin || !per_cvt) {
2268 		simple_playback_free(codec);
2269 		return -ENOMEM;
2270 	}
2271 	per_cvt->cvt_nid = cvt_nid;
2272 	per_pin->pin_nid = pin_nid;
2273 	spec->pcm_playback = simple_pcm_playback;
2274 
2275 	codec->patch_ops = simple_hdmi_patch_ops;
2276 
2277 	return 0;
2278 }
2279 
2280 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2281 						    int channels)
2282 {
2283 	unsigned int chanmask;
2284 	int chan = channels ? (channels - 1) : 1;
2285 
2286 	switch (channels) {
2287 	default:
2288 	case 0:
2289 	case 2:
2290 		chanmask = 0x00;
2291 		break;
2292 	case 4:
2293 		chanmask = 0x08;
2294 		break;
2295 	case 6:
2296 		chanmask = 0x0b;
2297 		break;
2298 	case 8:
2299 		chanmask = 0x13;
2300 		break;
2301 	}
2302 
2303 	/* Set the audio infoframe channel allocation and checksum fields.  The
2304 	 * channel count is computed implicitly by the hardware. */
2305 	snd_hda_codec_write(codec, 0x1, 0,
2306 			Nv_VERB_SET_Channel_Allocation, chanmask);
2307 
2308 	snd_hda_codec_write(codec, 0x1, 0,
2309 			Nv_VERB_SET_Info_Frame_Checksum,
2310 			(0x71 - chan - chanmask));
2311 }
2312 
2313 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
2314 				   struct hda_codec *codec,
2315 				   struct snd_pcm_substream *substream)
2316 {
2317 	struct hdmi_spec *spec = codec->spec;
2318 	int i;
2319 
2320 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
2321 			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
2322 	for (i = 0; i < 4; i++) {
2323 		/* set the stream id */
2324 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2325 				AC_VERB_SET_CHANNEL_STREAMID, 0);
2326 		/* set the stream format */
2327 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2328 				AC_VERB_SET_STREAM_FORMAT, 0);
2329 	}
2330 
2331 	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
2332 	 * streams are disabled. */
2333 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2334 
2335 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2336 }
2337 
2338 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
2339 				     struct hda_codec *codec,
2340 				     unsigned int stream_tag,
2341 				     unsigned int format,
2342 				     struct snd_pcm_substream *substream)
2343 {
2344 	int chs;
2345 	unsigned int dataDCC2, channel_id;
2346 	int i;
2347 	struct hdmi_spec *spec = codec->spec;
2348 	struct hda_spdif_out *spdif;
2349 	struct hdmi_spec_per_cvt *per_cvt;
2350 
2351 	mutex_lock(&codec->spdif_mutex);
2352 	per_cvt = get_cvt(spec, 0);
2353 	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
2354 
2355 	chs = substream->runtime->channels;
2356 
2357 	dataDCC2 = 0x2;
2358 
2359 	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2360 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
2361 		snd_hda_codec_write(codec,
2362 				nvhdmi_master_con_nid_7x,
2363 				0,
2364 				AC_VERB_SET_DIGI_CONVERT_1,
2365 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2366 
2367 	/* set the stream id */
2368 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2369 			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
2370 
2371 	/* set the stream format */
2372 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2373 			AC_VERB_SET_STREAM_FORMAT, format);
2374 
2375 	/* turn on again (if needed) */
2376 	/* enable and set the channel status audio/data flag */
2377 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
2378 		snd_hda_codec_write(codec,
2379 				nvhdmi_master_con_nid_7x,
2380 				0,
2381 				AC_VERB_SET_DIGI_CONVERT_1,
2382 				spdif->ctls & 0xff);
2383 		snd_hda_codec_write(codec,
2384 				nvhdmi_master_con_nid_7x,
2385 				0,
2386 				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2387 	}
2388 
2389 	for (i = 0; i < 4; i++) {
2390 		if (chs == 2)
2391 			channel_id = 0;
2392 		else
2393 			channel_id = i * 2;
2394 
2395 		/* turn off SPDIF once;
2396 		 *otherwise the IEC958 bits won't be updated
2397 		 */
2398 		if (codec->spdif_status_reset &&
2399 		(spdif->ctls & AC_DIG1_ENABLE))
2400 			snd_hda_codec_write(codec,
2401 				nvhdmi_con_nids_7x[i],
2402 				0,
2403 				AC_VERB_SET_DIGI_CONVERT_1,
2404 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2405 		/* set the stream id */
2406 		snd_hda_codec_write(codec,
2407 				nvhdmi_con_nids_7x[i],
2408 				0,
2409 				AC_VERB_SET_CHANNEL_STREAMID,
2410 				(stream_tag << 4) | channel_id);
2411 		/* set the stream format */
2412 		snd_hda_codec_write(codec,
2413 				nvhdmi_con_nids_7x[i],
2414 				0,
2415 				AC_VERB_SET_STREAM_FORMAT,
2416 				format);
2417 		/* turn on again (if needed) */
2418 		/* enable and set the channel status audio/data flag */
2419 		if (codec->spdif_status_reset &&
2420 		(spdif->ctls & AC_DIG1_ENABLE)) {
2421 			snd_hda_codec_write(codec,
2422 					nvhdmi_con_nids_7x[i],
2423 					0,
2424 					AC_VERB_SET_DIGI_CONVERT_1,
2425 					spdif->ctls & 0xff);
2426 			snd_hda_codec_write(codec,
2427 					nvhdmi_con_nids_7x[i],
2428 					0,
2429 					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2430 		}
2431 	}
2432 
2433 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
2434 
2435 	mutex_unlock(&codec->spdif_mutex);
2436 	return 0;
2437 }
2438 
2439 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
2440 	.substreams = 1,
2441 	.channels_min = 2,
2442 	.channels_max = 8,
2443 	.nid = nvhdmi_master_con_nid_7x,
2444 	.rates = SUPPORTED_RATES,
2445 	.maxbps = SUPPORTED_MAXBPS,
2446 	.formats = SUPPORTED_FORMATS,
2447 	.ops = {
2448 		.open = simple_playback_pcm_open,
2449 		.close = nvhdmi_8ch_7x_pcm_close,
2450 		.prepare = nvhdmi_8ch_7x_pcm_prepare
2451 	},
2452 };
2453 
2454 static int patch_nvhdmi_2ch(struct hda_codec *codec)
2455 {
2456 	struct hdmi_spec *spec;
2457 	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
2458 				    nvhdmi_master_pin_nid_7x);
2459 	if (err < 0)
2460 		return err;
2461 
2462 	codec->patch_ops.init = nvhdmi_7x_init_2ch;
2463 	/* override the PCM rates, etc, as the codec doesn't give full list */
2464 	spec = codec->spec;
2465 	spec->pcm_playback.rates = SUPPORTED_RATES;
2466 	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
2467 	spec->pcm_playback.formats = SUPPORTED_FORMATS;
2468 	return 0;
2469 }
2470 
2471 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
2472 {
2473 	struct hdmi_spec *spec = codec->spec;
2474 	int err = simple_playback_build_pcms(codec);
2475 	if (!err) {
2476 		struct hda_pcm *info = get_pcm_rec(spec, 0);
2477 		info->own_chmap = true;
2478 	}
2479 	return err;
2480 }
2481 
2482 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
2483 {
2484 	struct hdmi_spec *spec = codec->spec;
2485 	struct hda_pcm *info;
2486 	struct snd_pcm_chmap *chmap;
2487 	int err;
2488 
2489 	err = simple_playback_build_controls(codec);
2490 	if (err < 0)
2491 		return err;
2492 
2493 	/* add channel maps */
2494 	info = get_pcm_rec(spec, 0);
2495 	err = snd_pcm_add_chmap_ctls(info->pcm,
2496 				     SNDRV_PCM_STREAM_PLAYBACK,
2497 				     snd_pcm_alt_chmaps, 8, 0, &chmap);
2498 	if (err < 0)
2499 		return err;
2500 	switch (codec->preset->id) {
2501 	case 0x10de0002:
2502 	case 0x10de0003:
2503 	case 0x10de0005:
2504 	case 0x10de0006:
2505 		chmap->channel_mask = (1U << 2) | (1U << 8);
2506 		break;
2507 	case 0x10de0007:
2508 		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
2509 	}
2510 	return 0;
2511 }
2512 
2513 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
2514 {
2515 	struct hdmi_spec *spec;
2516 	int err = patch_nvhdmi_2ch(codec);
2517 	if (err < 0)
2518 		return err;
2519 	spec = codec->spec;
2520 	spec->multiout.max_channels = 8;
2521 	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
2522 	codec->patch_ops.init = nvhdmi_7x_init_8ch;
2523 	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
2524 	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
2525 
2526 	/* Initialize the audio infoframe channel mask and checksum to something
2527 	 * valid */
2528 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2529 
2530 	return 0;
2531 }
2532 
2533 /*
2534  * ATI-specific implementations
2535  *
2536  * FIXME: we may omit the whole this and use the generic code once after
2537  * it's confirmed to work.
2538  */
2539 
2540 #define ATIHDMI_CVT_NID		0x02	/* audio converter */
2541 #define ATIHDMI_PIN_NID		0x03	/* HDMI output pin */
2542 
2543 static int atihdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2544 					struct hda_codec *codec,
2545 					unsigned int stream_tag,
2546 					unsigned int format,
2547 					struct snd_pcm_substream *substream)
2548 {
2549 	struct hdmi_spec *spec = codec->spec;
2550 	struct hdmi_spec_per_cvt *per_cvt = get_cvt(spec, 0);
2551 	int chans = substream->runtime->channels;
2552 	int i, err;
2553 
2554 	err = simple_playback_pcm_prepare(hinfo, codec, stream_tag, format,
2555 					  substream);
2556 	if (err < 0)
2557 		return err;
2558 	snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
2559 			    AC_VERB_SET_CVT_CHAN_COUNT, chans - 1);
2560 	/* FIXME: XXX */
2561 	for (i = 0; i < chans; i++) {
2562 		snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
2563 				    AC_VERB_SET_HDMI_CHAN_SLOT,
2564 				    (i << 4) | i);
2565 	}
2566 	return 0;
2567 }
2568 
2569 static int patch_atihdmi(struct hda_codec *codec)
2570 {
2571 	struct hdmi_spec *spec;
2572 	int err = patch_simple_hdmi(codec, ATIHDMI_CVT_NID, ATIHDMI_PIN_NID);
2573 	if (err < 0)
2574 		return err;
2575 	spec = codec->spec;
2576 	spec->pcm_playback.ops.prepare = atihdmi_playback_pcm_prepare;
2577 	return 0;
2578 }
2579 
2580 /* VIA HDMI Implementation */
2581 #define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
2582 #define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
2583 
2584 static int patch_via_hdmi(struct hda_codec *codec)
2585 {
2586 	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
2587 }
2588 
2589 /*
2590  * patch entries
2591  */
2592 static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
2593 { .id = 0x1002793c, .name = "RS600 HDMI",	.patch = patch_atihdmi },
2594 { .id = 0x10027919, .name = "RS600 HDMI",	.patch = patch_atihdmi },
2595 { .id = 0x1002791a, .name = "RS690/780 HDMI",	.patch = patch_atihdmi },
2596 { .id = 0x1002aa01, .name = "R6xx HDMI",	.patch = patch_generic_hdmi },
2597 { .id = 0x10951390, .name = "SiI1390 HDMI",	.patch = patch_generic_hdmi },
2598 { .id = 0x10951392, .name = "SiI1392 HDMI",	.patch = patch_generic_hdmi },
2599 { .id = 0x17e80047, .name = "Chrontel HDMI",	.patch = patch_generic_hdmi },
2600 { .id = 0x10de0002, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2601 { .id = 0x10de0003, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2602 { .id = 0x10de0005, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2603 { .id = 0x10de0006, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
2604 { .id = 0x10de0007, .name = "MCP79/7A HDMI",	.patch = patch_nvhdmi_8ch_7x },
2605 { .id = 0x10de000a, .name = "GPU 0a HDMI/DP",	.patch = patch_generic_hdmi },
2606 { .id = 0x10de000b, .name = "GPU 0b HDMI/DP",	.patch = patch_generic_hdmi },
2607 { .id = 0x10de000c, .name = "MCP89 HDMI",	.patch = patch_generic_hdmi },
2608 { .id = 0x10de000d, .name = "GPU 0d HDMI/DP",	.patch = patch_generic_hdmi },
2609 { .id = 0x10de0010, .name = "GPU 10 HDMI/DP",	.patch = patch_generic_hdmi },
2610 { .id = 0x10de0011, .name = "GPU 11 HDMI/DP",	.patch = patch_generic_hdmi },
2611 { .id = 0x10de0012, .name = "GPU 12 HDMI/DP",	.patch = patch_generic_hdmi },
2612 { .id = 0x10de0013, .name = "GPU 13 HDMI/DP",	.patch = patch_generic_hdmi },
2613 { .id = 0x10de0014, .name = "GPU 14 HDMI/DP",	.patch = patch_generic_hdmi },
2614 { .id = 0x10de0015, .name = "GPU 15 HDMI/DP",	.patch = patch_generic_hdmi },
2615 { .id = 0x10de0016, .name = "GPU 16 HDMI/DP",	.patch = patch_generic_hdmi },
2616 /* 17 is known to be absent */
2617 { .id = 0x10de0018, .name = "GPU 18 HDMI/DP",	.patch = patch_generic_hdmi },
2618 { .id = 0x10de0019, .name = "GPU 19 HDMI/DP",	.patch = patch_generic_hdmi },
2619 { .id = 0x10de001a, .name = "GPU 1a HDMI/DP",	.patch = patch_generic_hdmi },
2620 { .id = 0x10de001b, .name = "GPU 1b HDMI/DP",	.patch = patch_generic_hdmi },
2621 { .id = 0x10de001c, .name = "GPU 1c HDMI/DP",	.patch = patch_generic_hdmi },
2622 { .id = 0x10de0040, .name = "GPU 40 HDMI/DP",	.patch = patch_generic_hdmi },
2623 { .id = 0x10de0041, .name = "GPU 41 HDMI/DP",	.patch = patch_generic_hdmi },
2624 { .id = 0x10de0042, .name = "GPU 42 HDMI/DP",	.patch = patch_generic_hdmi },
2625 { .id = 0x10de0043, .name = "GPU 43 HDMI/DP",	.patch = patch_generic_hdmi },
2626 { .id = 0x10de0044, .name = "GPU 44 HDMI/DP",	.patch = patch_generic_hdmi },
2627 { .id = 0x10de0051, .name = "GPU 51 HDMI/DP",	.patch = patch_generic_hdmi },
2628 { .id = 0x10de0060, .name = "GPU 60 HDMI/DP",	.patch = patch_generic_hdmi },
2629 { .id = 0x10de0067, .name = "MCP67 HDMI",	.patch = patch_nvhdmi_2ch },
2630 { .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
2631 { .id = 0x11069f80, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
2632 { .id = 0x11069f81, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
2633 { .id = 0x11069f84, .name = "VX11 HDMI/DP",	.patch = patch_generic_hdmi },
2634 { .id = 0x11069f85, .name = "VX11 HDMI/DP",	.patch = patch_generic_hdmi },
2635 { .id = 0x80860054, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
2636 { .id = 0x80862801, .name = "Bearlake HDMI",	.patch = patch_generic_hdmi },
2637 { .id = 0x80862802, .name = "Cantiga HDMI",	.patch = patch_generic_hdmi },
2638 { .id = 0x80862803, .name = "Eaglelake HDMI",	.patch = patch_generic_hdmi },
2639 { .id = 0x80862804, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
2640 { .id = 0x80862805, .name = "CougarPoint HDMI",	.patch = patch_generic_hdmi },
2641 { .id = 0x80862806, .name = "PantherPoint HDMI", .patch = patch_generic_hdmi },
2642 { .id = 0x80862807, .name = "Haswell HDMI",	.patch = patch_generic_hdmi },
2643 { .id = 0x80862880, .name = "CedarTrail HDMI",	.patch = patch_generic_hdmi },
2644 { .id = 0x808629fb, .name = "Crestline HDMI",	.patch = patch_generic_hdmi },
2645 {} /* terminator */
2646 };
2647 
2648 MODULE_ALIAS("snd-hda-codec-id:1002793c");
2649 MODULE_ALIAS("snd-hda-codec-id:10027919");
2650 MODULE_ALIAS("snd-hda-codec-id:1002791a");
2651 MODULE_ALIAS("snd-hda-codec-id:1002aa01");
2652 MODULE_ALIAS("snd-hda-codec-id:10951390");
2653 MODULE_ALIAS("snd-hda-codec-id:10951392");
2654 MODULE_ALIAS("snd-hda-codec-id:10de0002");
2655 MODULE_ALIAS("snd-hda-codec-id:10de0003");
2656 MODULE_ALIAS("snd-hda-codec-id:10de0005");
2657 MODULE_ALIAS("snd-hda-codec-id:10de0006");
2658 MODULE_ALIAS("snd-hda-codec-id:10de0007");
2659 MODULE_ALIAS("snd-hda-codec-id:10de000a");
2660 MODULE_ALIAS("snd-hda-codec-id:10de000b");
2661 MODULE_ALIAS("snd-hda-codec-id:10de000c");
2662 MODULE_ALIAS("snd-hda-codec-id:10de000d");
2663 MODULE_ALIAS("snd-hda-codec-id:10de0010");
2664 MODULE_ALIAS("snd-hda-codec-id:10de0011");
2665 MODULE_ALIAS("snd-hda-codec-id:10de0012");
2666 MODULE_ALIAS("snd-hda-codec-id:10de0013");
2667 MODULE_ALIAS("snd-hda-codec-id:10de0014");
2668 MODULE_ALIAS("snd-hda-codec-id:10de0015");
2669 MODULE_ALIAS("snd-hda-codec-id:10de0016");
2670 MODULE_ALIAS("snd-hda-codec-id:10de0018");
2671 MODULE_ALIAS("snd-hda-codec-id:10de0019");
2672 MODULE_ALIAS("snd-hda-codec-id:10de001a");
2673 MODULE_ALIAS("snd-hda-codec-id:10de001b");
2674 MODULE_ALIAS("snd-hda-codec-id:10de001c");
2675 MODULE_ALIAS("snd-hda-codec-id:10de0040");
2676 MODULE_ALIAS("snd-hda-codec-id:10de0041");
2677 MODULE_ALIAS("snd-hda-codec-id:10de0042");
2678 MODULE_ALIAS("snd-hda-codec-id:10de0043");
2679 MODULE_ALIAS("snd-hda-codec-id:10de0044");
2680 MODULE_ALIAS("snd-hda-codec-id:10de0051");
2681 MODULE_ALIAS("snd-hda-codec-id:10de0060");
2682 MODULE_ALIAS("snd-hda-codec-id:10de0067");
2683 MODULE_ALIAS("snd-hda-codec-id:10de8001");
2684 MODULE_ALIAS("snd-hda-codec-id:11069f80");
2685 MODULE_ALIAS("snd-hda-codec-id:11069f81");
2686 MODULE_ALIAS("snd-hda-codec-id:11069f84");
2687 MODULE_ALIAS("snd-hda-codec-id:11069f85");
2688 MODULE_ALIAS("snd-hda-codec-id:17e80047");
2689 MODULE_ALIAS("snd-hda-codec-id:80860054");
2690 MODULE_ALIAS("snd-hda-codec-id:80862801");
2691 MODULE_ALIAS("snd-hda-codec-id:80862802");
2692 MODULE_ALIAS("snd-hda-codec-id:80862803");
2693 MODULE_ALIAS("snd-hda-codec-id:80862804");
2694 MODULE_ALIAS("snd-hda-codec-id:80862805");
2695 MODULE_ALIAS("snd-hda-codec-id:80862806");
2696 MODULE_ALIAS("snd-hda-codec-id:80862807");
2697 MODULE_ALIAS("snd-hda-codec-id:80862880");
2698 MODULE_ALIAS("snd-hda-codec-id:808629fb");
2699 
2700 MODULE_LICENSE("GPL");
2701 MODULE_DESCRIPTION("HDMI HD-audio codec");
2702 MODULE_ALIAS("snd-hda-codec-intelhdmi");
2703 MODULE_ALIAS("snd-hda-codec-nvhdmi");
2704 MODULE_ALIAS("snd-hda-codec-atihdmi");
2705 
2706 static struct hda_codec_preset_list intel_list = {
2707 	.preset = snd_hda_preset_hdmi,
2708 	.owner = THIS_MODULE,
2709 };
2710 
2711 static int __init patch_hdmi_init(void)
2712 {
2713 	return snd_hda_add_codec_preset(&intel_list);
2714 }
2715 
2716 static void __exit patch_hdmi_exit(void)
2717 {
2718 	snd_hda_delete_codec_preset(&intel_list);
2719 }
2720 
2721 module_init(patch_hdmi_init)
2722 module_exit(patch_hdmi_exit)
2723