xref: /openbmc/linux/sound/pci/hda/patch_hdmi.c (revision a2cce7a9)
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  *  Copyright (c) 2013 Anssi Hannula <anssi.hannula@iki.fi>
10  *
11  *  Authors:
12  *			Wu Fengguang <wfg@linux.intel.com>
13  *
14  *  Maintained by:
15  *			Wu Fengguang <wfg@linux.intel.com>
16  *
17  *  This program is free software; you can redistribute it and/or modify it
18  *  under the terms of the GNU General Public License as published by the Free
19  *  Software Foundation; either version 2 of the License, or (at your option)
20  *  any later version.
21  *
22  *  This program is distributed in the hope that it will be useful, but
23  *  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
24  *  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
25  *  for more details.
26  *
27  *  You should have received a copy of the GNU General Public License
28  *  along with this program; if not, write to the Free Software Foundation,
29  *  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
30  */
31 
32 #include <linux/init.h>
33 #include <linux/delay.h>
34 #include <linux/slab.h>
35 #include <linux/module.h>
36 #include <sound/core.h>
37 #include <sound/jack.h>
38 #include <sound/asoundef.h>
39 #include <sound/tlv.h>
40 #include <sound/hdaudio.h>
41 #include <sound/hda_i915.h>
42 #include "hda_codec.h"
43 #include "hda_local.h"
44 #include "hda_jack.h"
45 
46 static bool static_hdmi_pcm;
47 module_param(static_hdmi_pcm, bool, 0644);
48 MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
49 
50 #define is_haswell(codec)  ((codec)->core.vendor_id == 0x80862807)
51 #define is_broadwell(codec)    ((codec)->core.vendor_id == 0x80862808)
52 #define is_skylake(codec) ((codec)->core.vendor_id == 0x80862809)
53 #define is_haswell_plus(codec) (is_haswell(codec) || is_broadwell(codec) \
54 					|| is_skylake(codec))
55 
56 #define is_valleyview(codec) ((codec)->core.vendor_id == 0x80862882)
57 #define is_cherryview(codec) ((codec)->core.vendor_id == 0x80862883)
58 #define is_valleyview_plus(codec) (is_valleyview(codec) || is_cherryview(codec))
59 
60 struct hdmi_spec_per_cvt {
61 	hda_nid_t cvt_nid;
62 	int assigned;
63 	unsigned int channels_min;
64 	unsigned int channels_max;
65 	u32 rates;
66 	u64 formats;
67 	unsigned int maxbps;
68 };
69 
70 /* max. connections to a widget */
71 #define HDA_MAX_CONNECTIONS	32
72 
73 struct hdmi_spec_per_pin {
74 	hda_nid_t pin_nid;
75 	int num_mux_nids;
76 	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
77 	int mux_idx;
78 	hda_nid_t cvt_nid;
79 
80 	struct hda_codec *codec;
81 	struct hdmi_eld sink_eld;
82 	struct mutex lock;
83 	struct delayed_work work;
84 	struct snd_kcontrol *eld_ctl;
85 	int repoll_count;
86 	bool setup; /* the stream has been set up by prepare callback */
87 	int channels; /* current number of channels */
88 	bool non_pcm;
89 	bool chmap_set;		/* channel-map override by ALSA API? */
90 	unsigned char chmap[8]; /* ALSA API channel-map */
91 #ifdef CONFIG_SND_PROC_FS
92 	struct snd_info_entry *proc_entry;
93 #endif
94 };
95 
96 struct cea_channel_speaker_allocation;
97 
98 /* operations used by generic code that can be overridden by patches */
99 struct hdmi_ops {
100 	int (*pin_get_eld)(struct hda_codec *codec, hda_nid_t pin_nid,
101 			   unsigned char *buf, int *eld_size);
102 
103 	/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */
104 	int (*pin_get_slot_channel)(struct hda_codec *codec, hda_nid_t pin_nid,
105 				    int asp_slot);
106 	int (*pin_set_slot_channel)(struct hda_codec *codec, hda_nid_t pin_nid,
107 				    int asp_slot, int channel);
108 
109 	void (*pin_setup_infoframe)(struct hda_codec *codec, hda_nid_t pin_nid,
110 				    int ca, int active_channels, int conn_type);
111 
112 	/* enable/disable HBR (HD passthrough) */
113 	int (*pin_hbr_setup)(struct hda_codec *codec, hda_nid_t pin_nid, bool hbr);
114 
115 	int (*setup_stream)(struct hda_codec *codec, hda_nid_t cvt_nid,
116 			    hda_nid_t pin_nid, u32 stream_tag, int format);
117 
118 	/* Helpers for producing the channel map TLVs. These can be overridden
119 	 * for devices that have non-standard mapping requirements. */
120 	int (*chmap_cea_alloc_validate_get_type)(struct cea_channel_speaker_allocation *cap,
121 						 int channels);
122 	void (*cea_alloc_to_tlv_chmap)(struct cea_channel_speaker_allocation *cap,
123 				       unsigned int *chmap, int channels);
124 
125 	/* check that the user-given chmap is supported */
126 	int (*chmap_validate)(int ca, int channels, unsigned char *chmap);
127 };
128 
129 struct hdmi_spec {
130 	int num_cvts;
131 	struct snd_array cvts; /* struct hdmi_spec_per_cvt */
132 	hda_nid_t cvt_nids[4]; /* only for haswell fix */
133 
134 	int num_pins;
135 	struct snd_array pins; /* struct hdmi_spec_per_pin */
136 	struct hda_pcm *pcm_rec[16];
137 	unsigned int channels_max; /* max over all cvts */
138 
139 	struct hdmi_eld temp_eld;
140 	struct hdmi_ops ops;
141 
142 	bool dyn_pin_out;
143 
144 	/*
145 	 * Non-generic VIA/NVIDIA specific
146 	 */
147 	struct hda_multi_out multiout;
148 	struct hda_pcm_stream pcm_playback;
149 
150 	/* i915/powerwell (Haswell+/Valleyview+) specific */
151 	struct i915_audio_component_audio_ops i915_audio_ops;
152 };
153 
154 
155 struct hdmi_audio_infoframe {
156 	u8 type; /* 0x84 */
157 	u8 ver;  /* 0x01 */
158 	u8 len;  /* 0x0a */
159 
160 	u8 checksum;
161 
162 	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
163 	u8 SS01_SF24;
164 	u8 CXT04;
165 	u8 CA;
166 	u8 LFEPBL01_LSV36_DM_INH7;
167 };
168 
169 struct dp_audio_infoframe {
170 	u8 type; /* 0x84 */
171 	u8 len;  /* 0x1b */
172 	u8 ver;  /* 0x11 << 2 */
173 
174 	u8 CC02_CT47;	/* match with HDMI infoframe from this on */
175 	u8 SS01_SF24;
176 	u8 CXT04;
177 	u8 CA;
178 	u8 LFEPBL01_LSV36_DM_INH7;
179 };
180 
181 union audio_infoframe {
182 	struct hdmi_audio_infoframe hdmi;
183 	struct dp_audio_infoframe dp;
184 	u8 bytes[0];
185 };
186 
187 /*
188  * CEA speaker placement:
189  *
190  *        FLH       FCH        FRH
191  *  FLW    FL  FLC   FC   FRC   FR   FRW
192  *
193  *                                  LFE
194  *                     TC
195  *
196  *          RL  RLC   RC   RRC   RR
197  *
198  * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
199  * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
200  */
201 enum cea_speaker_placement {
202 	FL  = (1 <<  0),	/* Front Left           */
203 	FC  = (1 <<  1),	/* Front Center         */
204 	FR  = (1 <<  2),	/* Front Right          */
205 	FLC = (1 <<  3),	/* Front Left Center    */
206 	FRC = (1 <<  4),	/* Front Right Center   */
207 	RL  = (1 <<  5),	/* Rear Left            */
208 	RC  = (1 <<  6),	/* Rear Center          */
209 	RR  = (1 <<  7),	/* Rear Right           */
210 	RLC = (1 <<  8),	/* Rear Left Center     */
211 	RRC = (1 <<  9),	/* Rear Right Center    */
212 	LFE = (1 << 10),	/* Low Frequency Effect */
213 	FLW = (1 << 11),	/* Front Left Wide      */
214 	FRW = (1 << 12),	/* Front Right Wide     */
215 	FLH = (1 << 13),	/* Front Left High      */
216 	FCH = (1 << 14),	/* Front Center High    */
217 	FRH = (1 << 15),	/* Front Right High     */
218 	TC  = (1 << 16),	/* Top Center           */
219 };
220 
221 /*
222  * ELD SA bits in the CEA Speaker Allocation data block
223  */
224 static int eld_speaker_allocation_bits[] = {
225 	[0] = FL | FR,
226 	[1] = LFE,
227 	[2] = FC,
228 	[3] = RL | RR,
229 	[4] = RC,
230 	[5] = FLC | FRC,
231 	[6] = RLC | RRC,
232 	/* the following are not defined in ELD yet */
233 	[7] = FLW | FRW,
234 	[8] = FLH | FRH,
235 	[9] = TC,
236 	[10] = FCH,
237 };
238 
239 struct cea_channel_speaker_allocation {
240 	int ca_index;
241 	int speakers[8];
242 
243 	/* derived values, just for convenience */
244 	int channels;
245 	int spk_mask;
246 };
247 
248 /*
249  * ALSA sequence is:
250  *
251  *       surround40   surround41   surround50   surround51   surround71
252  * ch0   front left   =            =            =            =
253  * ch1   front right  =            =            =            =
254  * ch2   rear left    =            =            =            =
255  * ch3   rear right   =            =            =            =
256  * ch4                LFE          center       center       center
257  * ch5                                          LFE          LFE
258  * ch6                                                       side left
259  * ch7                                                       side right
260  *
261  * surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR}
262  */
263 static int hdmi_channel_mapping[0x32][8] = {
264 	/* stereo */
265 	[0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
266 	/* 2.1 */
267 	[0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
268 	/* Dolby Surround */
269 	[0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 },
270 	/* surround40 */
271 	[0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 },
272 	/* 4ch */
273 	[0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 },
274 	/* surround41 */
275 	[0x09] = { 0x00, 0x11, 0x24, 0x35, 0x42, 0xf3, 0xf6, 0xf7 },
276 	/* surround50 */
277 	[0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 },
278 	/* surround51 */
279 	[0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 },
280 	/* 7.1 */
281 	[0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 },
282 };
283 
284 /*
285  * This is an ordered list!
286  *
287  * The preceding ones have better chances to be selected by
288  * hdmi_channel_allocation().
289  */
290 static struct cea_channel_speaker_allocation channel_allocations[] = {
291 /*			  channel:   7     6    5    4    3     2    1    0  */
292 { .ca_index = 0x00,  .speakers = {   0,    0,   0,   0,   0,    0,  FR,  FL } },
293 				 /* 2.1 */
294 { .ca_index = 0x01,  .speakers = {   0,    0,   0,   0,   0,  LFE,  FR,  FL } },
295 				 /* Dolby Surround */
296 { .ca_index = 0x02,  .speakers = {   0,    0,   0,   0,  FC,    0,  FR,  FL } },
297 				 /* surround40 */
298 { .ca_index = 0x08,  .speakers = {   0,    0,  RR,  RL,   0,    0,  FR,  FL } },
299 				 /* surround41 */
300 { .ca_index = 0x09,  .speakers = {   0,    0,  RR,  RL,   0,  LFE,  FR,  FL } },
301 				 /* surround50 */
302 { .ca_index = 0x0a,  .speakers = {   0,    0,  RR,  RL,  FC,    0,  FR,  FL } },
303 				 /* surround51 */
304 { .ca_index = 0x0b,  .speakers = {   0,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
305 				 /* 6.1 */
306 { .ca_index = 0x0f,  .speakers = {   0,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
307 				 /* surround71 */
308 { .ca_index = 0x13,  .speakers = { RRC,  RLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
309 
310 { .ca_index = 0x03,  .speakers = {   0,    0,   0,   0,  FC,  LFE,  FR,  FL } },
311 { .ca_index = 0x04,  .speakers = {   0,    0,   0,  RC,   0,    0,  FR,  FL } },
312 { .ca_index = 0x05,  .speakers = {   0,    0,   0,  RC,   0,  LFE,  FR,  FL } },
313 { .ca_index = 0x06,  .speakers = {   0,    0,   0,  RC,  FC,    0,  FR,  FL } },
314 { .ca_index = 0x07,  .speakers = {   0,    0,   0,  RC,  FC,  LFE,  FR,  FL } },
315 { .ca_index = 0x0c,  .speakers = {   0,   RC,  RR,  RL,   0,    0,  FR,  FL } },
316 { .ca_index = 0x0d,  .speakers = {   0,   RC,  RR,  RL,   0,  LFE,  FR,  FL } },
317 { .ca_index = 0x0e,  .speakers = {   0,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
318 { .ca_index = 0x10,  .speakers = { RRC,  RLC,  RR,  RL,   0,    0,  FR,  FL } },
319 { .ca_index = 0x11,  .speakers = { RRC,  RLC,  RR,  RL,   0,  LFE,  FR,  FL } },
320 { .ca_index = 0x12,  .speakers = { RRC,  RLC,  RR,  RL,  FC,    0,  FR,  FL } },
321 { .ca_index = 0x14,  .speakers = { FRC,  FLC,   0,   0,   0,    0,  FR,  FL } },
322 { .ca_index = 0x15,  .speakers = { FRC,  FLC,   0,   0,   0,  LFE,  FR,  FL } },
323 { .ca_index = 0x16,  .speakers = { FRC,  FLC,   0,   0,  FC,    0,  FR,  FL } },
324 { .ca_index = 0x17,  .speakers = { FRC,  FLC,   0,   0,  FC,  LFE,  FR,  FL } },
325 { .ca_index = 0x18,  .speakers = { FRC,  FLC,   0,  RC,   0,    0,  FR,  FL } },
326 { .ca_index = 0x19,  .speakers = { FRC,  FLC,   0,  RC,   0,  LFE,  FR,  FL } },
327 { .ca_index = 0x1a,  .speakers = { FRC,  FLC,   0,  RC,  FC,    0,  FR,  FL } },
328 { .ca_index = 0x1b,  .speakers = { FRC,  FLC,   0,  RC,  FC,  LFE,  FR,  FL } },
329 { .ca_index = 0x1c,  .speakers = { FRC,  FLC,  RR,  RL,   0,    0,  FR,  FL } },
330 { .ca_index = 0x1d,  .speakers = { FRC,  FLC,  RR,  RL,   0,  LFE,  FR,  FL } },
331 { .ca_index = 0x1e,  .speakers = { FRC,  FLC,  RR,  RL,  FC,    0,  FR,  FL } },
332 { .ca_index = 0x1f,  .speakers = { FRC,  FLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
333 { .ca_index = 0x20,  .speakers = {   0,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
334 { .ca_index = 0x21,  .speakers = {   0,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
335 { .ca_index = 0x22,  .speakers = {  TC,    0,  RR,  RL,  FC,    0,  FR,  FL } },
336 { .ca_index = 0x23,  .speakers = {  TC,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
337 { .ca_index = 0x24,  .speakers = { FRH,  FLH,  RR,  RL,   0,    0,  FR,  FL } },
338 { .ca_index = 0x25,  .speakers = { FRH,  FLH,  RR,  RL,   0,  LFE,  FR,  FL } },
339 { .ca_index = 0x26,  .speakers = { FRW,  FLW,  RR,  RL,   0,    0,  FR,  FL } },
340 { .ca_index = 0x27,  .speakers = { FRW,  FLW,  RR,  RL,   0,  LFE,  FR,  FL } },
341 { .ca_index = 0x28,  .speakers = {  TC,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
342 { .ca_index = 0x29,  .speakers = {  TC,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
343 { .ca_index = 0x2a,  .speakers = { FCH,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
344 { .ca_index = 0x2b,  .speakers = { FCH,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
345 { .ca_index = 0x2c,  .speakers = {  TC,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
346 { .ca_index = 0x2d,  .speakers = {  TC,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
347 { .ca_index = 0x2e,  .speakers = { FRH,  FLH,  RR,  RL,  FC,    0,  FR,  FL } },
348 { .ca_index = 0x2f,  .speakers = { FRH,  FLH,  RR,  RL,  FC,  LFE,  FR,  FL } },
349 { .ca_index = 0x30,  .speakers = { FRW,  FLW,  RR,  RL,  FC,    0,  FR,  FL } },
350 { .ca_index = 0x31,  .speakers = { FRW,  FLW,  RR,  RL,  FC,  LFE,  FR,  FL } },
351 };
352 
353 
354 /*
355  * HDMI routines
356  */
357 
358 #define get_pin(spec, idx) \
359 	((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
360 #define get_cvt(spec, idx) \
361 	((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
362 #define get_pcm_rec(spec, idx)	((spec)->pcm_rec[idx])
363 
364 static int pin_nid_to_pin_index(struct hda_codec *codec, hda_nid_t pin_nid)
365 {
366 	struct hdmi_spec *spec = codec->spec;
367 	int pin_idx;
368 
369 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
370 		if (get_pin(spec, pin_idx)->pin_nid == pin_nid)
371 			return pin_idx;
372 
373 	codec_warn(codec, "HDMI: pin nid %d not registered\n", pin_nid);
374 	return -EINVAL;
375 }
376 
377 static int hinfo_to_pin_index(struct hda_codec *codec,
378 			      struct hda_pcm_stream *hinfo)
379 {
380 	struct hdmi_spec *spec = codec->spec;
381 	int pin_idx;
382 
383 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
384 		if (get_pcm_rec(spec, pin_idx)->stream == hinfo)
385 			return pin_idx;
386 
387 	codec_warn(codec, "HDMI: hinfo %p not registered\n", hinfo);
388 	return -EINVAL;
389 }
390 
391 static int cvt_nid_to_cvt_index(struct hda_codec *codec, hda_nid_t cvt_nid)
392 {
393 	struct hdmi_spec *spec = codec->spec;
394 	int cvt_idx;
395 
396 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
397 		if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
398 			return cvt_idx;
399 
400 	codec_warn(codec, "HDMI: cvt nid %d not registered\n", cvt_nid);
401 	return -EINVAL;
402 }
403 
404 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
405 			struct snd_ctl_elem_info *uinfo)
406 {
407 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
408 	struct hdmi_spec *spec = codec->spec;
409 	struct hdmi_spec_per_pin *per_pin;
410 	struct hdmi_eld *eld;
411 	int pin_idx;
412 
413 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
414 
415 	pin_idx = kcontrol->private_value;
416 	per_pin = get_pin(spec, pin_idx);
417 	eld = &per_pin->sink_eld;
418 
419 	mutex_lock(&per_pin->lock);
420 	uinfo->count = eld->eld_valid ? eld->eld_size : 0;
421 	mutex_unlock(&per_pin->lock);
422 
423 	return 0;
424 }
425 
426 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
427 			struct snd_ctl_elem_value *ucontrol)
428 {
429 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
430 	struct hdmi_spec *spec = codec->spec;
431 	struct hdmi_spec_per_pin *per_pin;
432 	struct hdmi_eld *eld;
433 	int pin_idx;
434 
435 	pin_idx = kcontrol->private_value;
436 	per_pin = get_pin(spec, pin_idx);
437 	eld = &per_pin->sink_eld;
438 
439 	mutex_lock(&per_pin->lock);
440 	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
441 		mutex_unlock(&per_pin->lock);
442 		snd_BUG();
443 		return -EINVAL;
444 	}
445 
446 	memset(ucontrol->value.bytes.data, 0,
447 	       ARRAY_SIZE(ucontrol->value.bytes.data));
448 	if (eld->eld_valid)
449 		memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
450 		       eld->eld_size);
451 	mutex_unlock(&per_pin->lock);
452 
453 	return 0;
454 }
455 
456 static struct snd_kcontrol_new eld_bytes_ctl = {
457 	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
458 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
459 	.name = "ELD",
460 	.info = hdmi_eld_ctl_info,
461 	.get = hdmi_eld_ctl_get,
462 };
463 
464 static int hdmi_create_eld_ctl(struct hda_codec *codec, int pin_idx,
465 			int device)
466 {
467 	struct snd_kcontrol *kctl;
468 	struct hdmi_spec *spec = codec->spec;
469 	int err;
470 
471 	kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
472 	if (!kctl)
473 		return -ENOMEM;
474 	kctl->private_value = pin_idx;
475 	kctl->id.device = device;
476 
477 	err = snd_hda_ctl_add(codec, get_pin(spec, pin_idx)->pin_nid, kctl);
478 	if (err < 0)
479 		return err;
480 
481 	get_pin(spec, pin_idx)->eld_ctl = kctl;
482 	return 0;
483 }
484 
485 #ifdef BE_PARANOID
486 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
487 				int *packet_index, int *byte_index)
488 {
489 	int val;
490 
491 	val = snd_hda_codec_read(codec, pin_nid, 0,
492 				 AC_VERB_GET_HDMI_DIP_INDEX, 0);
493 
494 	*packet_index = val >> 5;
495 	*byte_index = val & 0x1f;
496 }
497 #endif
498 
499 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
500 				int packet_index, int byte_index)
501 {
502 	int val;
503 
504 	val = (packet_index << 5) | (byte_index & 0x1f);
505 
506 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
507 }
508 
509 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
510 				unsigned char val)
511 {
512 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
513 }
514 
515 static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
516 {
517 	struct hdmi_spec *spec = codec->spec;
518 	int pin_out;
519 
520 	/* Unmute */
521 	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
522 		snd_hda_codec_write(codec, pin_nid, 0,
523 				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
524 
525 	if (spec->dyn_pin_out)
526 		/* Disable pin out until stream is active */
527 		pin_out = 0;
528 	else
529 		/* Enable pin out: some machines with GM965 gets broken output
530 		 * when the pin is disabled or changed while using with HDMI
531 		 */
532 		pin_out = PIN_OUT;
533 
534 	snd_hda_codec_write(codec, pin_nid, 0,
535 			    AC_VERB_SET_PIN_WIDGET_CONTROL, pin_out);
536 }
537 
538 static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t cvt_nid)
539 {
540 	return 1 + snd_hda_codec_read(codec, cvt_nid, 0,
541 					AC_VERB_GET_CVT_CHAN_COUNT, 0);
542 }
543 
544 static void hdmi_set_channel_count(struct hda_codec *codec,
545 				   hda_nid_t cvt_nid, int chs)
546 {
547 	if (chs != hdmi_get_channel_count(codec, cvt_nid))
548 		snd_hda_codec_write(codec, cvt_nid, 0,
549 				    AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
550 }
551 
552 /*
553  * ELD proc files
554  */
555 
556 #ifdef CONFIG_SND_PROC_FS
557 static void print_eld_info(struct snd_info_entry *entry,
558 			   struct snd_info_buffer *buffer)
559 {
560 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
561 
562 	mutex_lock(&per_pin->lock);
563 	snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer);
564 	mutex_unlock(&per_pin->lock);
565 }
566 
567 static void write_eld_info(struct snd_info_entry *entry,
568 			   struct snd_info_buffer *buffer)
569 {
570 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
571 
572 	mutex_lock(&per_pin->lock);
573 	snd_hdmi_write_eld_info(&per_pin->sink_eld, buffer);
574 	mutex_unlock(&per_pin->lock);
575 }
576 
577 static int eld_proc_new(struct hdmi_spec_per_pin *per_pin, int index)
578 {
579 	char name[32];
580 	struct hda_codec *codec = per_pin->codec;
581 	struct snd_info_entry *entry;
582 	int err;
583 
584 	snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index);
585 	err = snd_card_proc_new(codec->card, name, &entry);
586 	if (err < 0)
587 		return err;
588 
589 	snd_info_set_text_ops(entry, per_pin, print_eld_info);
590 	entry->c.text.write = write_eld_info;
591 	entry->mode |= S_IWUSR;
592 	per_pin->proc_entry = entry;
593 
594 	return 0;
595 }
596 
597 static void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
598 {
599 	if (!per_pin->codec->bus->shutdown) {
600 		snd_info_free_entry(per_pin->proc_entry);
601 		per_pin->proc_entry = NULL;
602 	}
603 }
604 #else
605 static inline int eld_proc_new(struct hdmi_spec_per_pin *per_pin,
606 			       int index)
607 {
608 	return 0;
609 }
610 static inline void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
611 {
612 }
613 #endif
614 
615 /*
616  * Channel mapping routines
617  */
618 
619 /*
620  * Compute derived values in channel_allocations[].
621  */
622 static void init_channel_allocations(void)
623 {
624 	int i, j;
625 	struct cea_channel_speaker_allocation *p;
626 
627 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
628 		p = channel_allocations + i;
629 		p->channels = 0;
630 		p->spk_mask = 0;
631 		for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
632 			if (p->speakers[j]) {
633 				p->channels++;
634 				p->spk_mask |= p->speakers[j];
635 			}
636 	}
637 }
638 
639 static int get_channel_allocation_order(int ca)
640 {
641 	int i;
642 
643 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
644 		if (channel_allocations[i].ca_index == ca)
645 			break;
646 	}
647 	return i;
648 }
649 
650 /*
651  * The transformation takes two steps:
652  *
653  *	eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
654  *	      spk_mask => (channel_allocations[])         => ai->CA
655  *
656  * TODO: it could select the wrong CA from multiple candidates.
657 */
658 static int hdmi_channel_allocation(struct hda_codec *codec,
659 				   struct hdmi_eld *eld, int channels)
660 {
661 	int i;
662 	int ca = 0;
663 	int spk_mask = 0;
664 	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
665 
666 	/*
667 	 * CA defaults to 0 for basic stereo audio
668 	 */
669 	if (channels <= 2)
670 		return 0;
671 
672 	/*
673 	 * expand ELD's speaker allocation mask
674 	 *
675 	 * ELD tells the speaker mask in a compact(paired) form,
676 	 * expand ELD's notions to match the ones used by Audio InfoFrame.
677 	 */
678 	for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
679 		if (eld->info.spk_alloc & (1 << i))
680 			spk_mask |= eld_speaker_allocation_bits[i];
681 	}
682 
683 	/* search for the first working match in the CA table */
684 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
685 		if (channels == channel_allocations[i].channels &&
686 		    (spk_mask & channel_allocations[i].spk_mask) ==
687 				channel_allocations[i].spk_mask) {
688 			ca = channel_allocations[i].ca_index;
689 			break;
690 		}
691 	}
692 
693 	if (!ca) {
694 		/* if there was no match, select the regular ALSA channel
695 		 * allocation with the matching number of channels */
696 		for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
697 			if (channels == channel_allocations[i].channels) {
698 				ca = channel_allocations[i].ca_index;
699 				break;
700 			}
701 		}
702 	}
703 
704 	snd_print_channel_allocation(eld->info.spk_alloc, buf, sizeof(buf));
705 	codec_dbg(codec, "HDMI: select CA 0x%x for %d-channel allocation: %s\n",
706 		    ca, channels, buf);
707 
708 	return ca;
709 }
710 
711 static void hdmi_debug_channel_mapping(struct hda_codec *codec,
712 				       hda_nid_t pin_nid)
713 {
714 #ifdef CONFIG_SND_DEBUG_VERBOSE
715 	struct hdmi_spec *spec = codec->spec;
716 	int i;
717 	int channel;
718 
719 	for (i = 0; i < 8; i++) {
720 		channel = spec->ops.pin_get_slot_channel(codec, pin_nid, i);
721 		codec_dbg(codec, "HDMI: ASP channel %d => slot %d\n",
722 						channel, i);
723 	}
724 #endif
725 }
726 
727 static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
728 				       hda_nid_t pin_nid,
729 				       bool non_pcm,
730 				       int ca)
731 {
732 	struct hdmi_spec *spec = codec->spec;
733 	struct cea_channel_speaker_allocation *ch_alloc;
734 	int i;
735 	int err;
736 	int order;
737 	int non_pcm_mapping[8];
738 
739 	order = get_channel_allocation_order(ca);
740 	ch_alloc = &channel_allocations[order];
741 
742 	if (hdmi_channel_mapping[ca][1] == 0) {
743 		int hdmi_slot = 0;
744 		/* fill actual channel mappings in ALSA channel (i) order */
745 		for (i = 0; i < ch_alloc->channels; i++) {
746 			while (!ch_alloc->speakers[7 - hdmi_slot] && !WARN_ON(hdmi_slot >= 8))
747 				hdmi_slot++; /* skip zero slots */
748 
749 			hdmi_channel_mapping[ca][i] = (i << 4) | hdmi_slot++;
750 		}
751 		/* fill the rest of the slots with ALSA channel 0xf */
752 		for (hdmi_slot = 0; hdmi_slot < 8; hdmi_slot++)
753 			if (!ch_alloc->speakers[7 - hdmi_slot])
754 				hdmi_channel_mapping[ca][i++] = (0xf << 4) | hdmi_slot;
755 	}
756 
757 	if (non_pcm) {
758 		for (i = 0; i < ch_alloc->channels; i++)
759 			non_pcm_mapping[i] = (i << 4) | i;
760 		for (; i < 8; i++)
761 			non_pcm_mapping[i] = (0xf << 4) | i;
762 	}
763 
764 	for (i = 0; i < 8; i++) {
765 		int slotsetup = non_pcm ? non_pcm_mapping[i] : hdmi_channel_mapping[ca][i];
766 		int hdmi_slot = slotsetup & 0x0f;
767 		int channel = (slotsetup & 0xf0) >> 4;
768 		err = spec->ops.pin_set_slot_channel(codec, pin_nid, hdmi_slot, channel);
769 		if (err) {
770 			codec_dbg(codec, "HDMI: channel mapping failed\n");
771 			break;
772 		}
773 	}
774 }
775 
776 struct channel_map_table {
777 	unsigned char map;		/* ALSA API channel map position */
778 	int spk_mask;			/* speaker position bit mask */
779 };
780 
781 static struct channel_map_table map_tables[] = {
782 	{ SNDRV_CHMAP_FL,	FL },
783 	{ SNDRV_CHMAP_FR,	FR },
784 	{ SNDRV_CHMAP_RL,	RL },
785 	{ SNDRV_CHMAP_RR,	RR },
786 	{ SNDRV_CHMAP_LFE,	LFE },
787 	{ SNDRV_CHMAP_FC,	FC },
788 	{ SNDRV_CHMAP_RLC,	RLC },
789 	{ SNDRV_CHMAP_RRC,	RRC },
790 	{ SNDRV_CHMAP_RC,	RC },
791 	{ SNDRV_CHMAP_FLC,	FLC },
792 	{ SNDRV_CHMAP_FRC,	FRC },
793 	{ SNDRV_CHMAP_TFL,	FLH },
794 	{ SNDRV_CHMAP_TFR,	FRH },
795 	{ SNDRV_CHMAP_FLW,	FLW },
796 	{ SNDRV_CHMAP_FRW,	FRW },
797 	{ SNDRV_CHMAP_TC,	TC },
798 	{ SNDRV_CHMAP_TFC,	FCH },
799 	{} /* terminator */
800 };
801 
802 /* from ALSA API channel position to speaker bit mask */
803 static int to_spk_mask(unsigned char c)
804 {
805 	struct channel_map_table *t = map_tables;
806 	for (; t->map; t++) {
807 		if (t->map == c)
808 			return t->spk_mask;
809 	}
810 	return 0;
811 }
812 
813 /* from ALSA API channel position to CEA slot */
814 static int to_cea_slot(int ordered_ca, unsigned char pos)
815 {
816 	int mask = to_spk_mask(pos);
817 	int i;
818 
819 	if (mask) {
820 		for (i = 0; i < 8; i++) {
821 			if (channel_allocations[ordered_ca].speakers[7 - i] == mask)
822 				return i;
823 		}
824 	}
825 
826 	return -1;
827 }
828 
829 /* from speaker bit mask to ALSA API channel position */
830 static int spk_to_chmap(int spk)
831 {
832 	struct channel_map_table *t = map_tables;
833 	for (; t->map; t++) {
834 		if (t->spk_mask == spk)
835 			return t->map;
836 	}
837 	return 0;
838 }
839 
840 /* from CEA slot to ALSA API channel position */
841 static int from_cea_slot(int ordered_ca, unsigned char slot)
842 {
843 	int mask = channel_allocations[ordered_ca].speakers[7 - slot];
844 
845 	return spk_to_chmap(mask);
846 }
847 
848 /* get the CA index corresponding to the given ALSA API channel map */
849 static int hdmi_manual_channel_allocation(int chs, unsigned char *map)
850 {
851 	int i, spks = 0, spk_mask = 0;
852 
853 	for (i = 0; i < chs; i++) {
854 		int mask = to_spk_mask(map[i]);
855 		if (mask) {
856 			spk_mask |= mask;
857 			spks++;
858 		}
859 	}
860 
861 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
862 		if ((chs == channel_allocations[i].channels ||
863 		     spks == channel_allocations[i].channels) &&
864 		    (spk_mask & channel_allocations[i].spk_mask) ==
865 				channel_allocations[i].spk_mask)
866 			return channel_allocations[i].ca_index;
867 	}
868 	return -1;
869 }
870 
871 /* set up the channel slots for the given ALSA API channel map */
872 static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
873 					     hda_nid_t pin_nid,
874 					     int chs, unsigned char *map,
875 					     int ca)
876 {
877 	struct hdmi_spec *spec = codec->spec;
878 	int ordered_ca = get_channel_allocation_order(ca);
879 	int alsa_pos, hdmi_slot;
880 	int assignments[8] = {[0 ... 7] = 0xf};
881 
882 	for (alsa_pos = 0; alsa_pos < chs; alsa_pos++) {
883 
884 		hdmi_slot = to_cea_slot(ordered_ca, map[alsa_pos]);
885 
886 		if (hdmi_slot < 0)
887 			continue; /* unassigned channel */
888 
889 		assignments[hdmi_slot] = alsa_pos;
890 	}
891 
892 	for (hdmi_slot = 0; hdmi_slot < 8; hdmi_slot++) {
893 		int err;
894 
895 		err = spec->ops.pin_set_slot_channel(codec, pin_nid, hdmi_slot,
896 						     assignments[hdmi_slot]);
897 		if (err)
898 			return -EINVAL;
899 	}
900 	return 0;
901 }
902 
903 /* store ALSA API channel map from the current default map */
904 static void hdmi_setup_fake_chmap(unsigned char *map, int ca)
905 {
906 	int i;
907 	int ordered_ca = get_channel_allocation_order(ca);
908 	for (i = 0; i < 8; i++) {
909 		if (i < channel_allocations[ordered_ca].channels)
910 			map[i] = from_cea_slot(ordered_ca, hdmi_channel_mapping[ca][i] & 0x0f);
911 		else
912 			map[i] = 0;
913 	}
914 }
915 
916 static void hdmi_setup_channel_mapping(struct hda_codec *codec,
917 				       hda_nid_t pin_nid, bool non_pcm, int ca,
918 				       int channels, unsigned char *map,
919 				       bool chmap_set)
920 {
921 	if (!non_pcm && chmap_set) {
922 		hdmi_manual_setup_channel_mapping(codec, pin_nid,
923 						  channels, map, ca);
924 	} else {
925 		hdmi_std_setup_channel_mapping(codec, pin_nid, non_pcm, ca);
926 		hdmi_setup_fake_chmap(map, ca);
927 	}
928 
929 	hdmi_debug_channel_mapping(codec, pin_nid);
930 }
931 
932 static int hdmi_pin_set_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
933 				     int asp_slot, int channel)
934 {
935 	return snd_hda_codec_write(codec, pin_nid, 0,
936 				   AC_VERB_SET_HDMI_CHAN_SLOT,
937 				   (channel << 4) | asp_slot);
938 }
939 
940 static int hdmi_pin_get_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
941 				     int asp_slot)
942 {
943 	return (snd_hda_codec_read(codec, pin_nid, 0,
944 				   AC_VERB_GET_HDMI_CHAN_SLOT,
945 				   asp_slot) & 0xf0) >> 4;
946 }
947 
948 /*
949  * Audio InfoFrame routines
950  */
951 
952 /*
953  * Enable Audio InfoFrame Transmission
954  */
955 static void hdmi_start_infoframe_trans(struct hda_codec *codec,
956 				       hda_nid_t pin_nid)
957 {
958 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
959 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
960 						AC_DIPXMIT_BEST);
961 }
962 
963 /*
964  * Disable Audio InfoFrame Transmission
965  */
966 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
967 				      hda_nid_t pin_nid)
968 {
969 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
970 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
971 						AC_DIPXMIT_DISABLE);
972 }
973 
974 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
975 {
976 #ifdef CONFIG_SND_DEBUG_VERBOSE
977 	int i;
978 	int size;
979 
980 	size = snd_hdmi_get_eld_size(codec, pin_nid);
981 	codec_dbg(codec, "HDMI: ELD buf size is %d\n", size);
982 
983 	for (i = 0; i < 8; i++) {
984 		size = snd_hda_codec_read(codec, pin_nid, 0,
985 						AC_VERB_GET_HDMI_DIP_SIZE, i);
986 		codec_dbg(codec, "HDMI: DIP GP[%d] buf size is %d\n", i, size);
987 	}
988 #endif
989 }
990 
991 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
992 {
993 #ifdef BE_PARANOID
994 	int i, j;
995 	int size;
996 	int pi, bi;
997 	for (i = 0; i < 8; i++) {
998 		size = snd_hda_codec_read(codec, pin_nid, 0,
999 						AC_VERB_GET_HDMI_DIP_SIZE, i);
1000 		if (size == 0)
1001 			continue;
1002 
1003 		hdmi_set_dip_index(codec, pin_nid, i, 0x0);
1004 		for (j = 1; j < 1000; j++) {
1005 			hdmi_write_dip_byte(codec, pin_nid, 0x0);
1006 			hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
1007 			if (pi != i)
1008 				codec_dbg(codec, "dip index %d: %d != %d\n",
1009 						bi, pi, i);
1010 			if (bi == 0) /* byte index wrapped around */
1011 				break;
1012 		}
1013 		codec_dbg(codec,
1014 			"HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
1015 			i, size, j);
1016 	}
1017 #endif
1018 }
1019 
1020 static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
1021 {
1022 	u8 *bytes = (u8 *)hdmi_ai;
1023 	u8 sum = 0;
1024 	int i;
1025 
1026 	hdmi_ai->checksum = 0;
1027 
1028 	for (i = 0; i < sizeof(*hdmi_ai); i++)
1029 		sum += bytes[i];
1030 
1031 	hdmi_ai->checksum = -sum;
1032 }
1033 
1034 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
1035 				      hda_nid_t pin_nid,
1036 				      u8 *dip, int size)
1037 {
1038 	int i;
1039 
1040 	hdmi_debug_dip_size(codec, pin_nid);
1041 	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
1042 
1043 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
1044 	for (i = 0; i < size; i++)
1045 		hdmi_write_dip_byte(codec, pin_nid, dip[i]);
1046 }
1047 
1048 static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
1049 				    u8 *dip, int size)
1050 {
1051 	u8 val;
1052 	int i;
1053 
1054 	if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
1055 							    != AC_DIPXMIT_BEST)
1056 		return false;
1057 
1058 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
1059 	for (i = 0; i < size; i++) {
1060 		val = snd_hda_codec_read(codec, pin_nid, 0,
1061 					 AC_VERB_GET_HDMI_DIP_DATA, 0);
1062 		if (val != dip[i])
1063 			return false;
1064 	}
1065 
1066 	return true;
1067 }
1068 
1069 static void hdmi_pin_setup_infoframe(struct hda_codec *codec,
1070 				     hda_nid_t pin_nid,
1071 				     int ca, int active_channels,
1072 				     int conn_type)
1073 {
1074 	union audio_infoframe ai;
1075 
1076 	memset(&ai, 0, sizeof(ai));
1077 	if (conn_type == 0) { /* HDMI */
1078 		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
1079 
1080 		hdmi_ai->type		= 0x84;
1081 		hdmi_ai->ver		= 0x01;
1082 		hdmi_ai->len		= 0x0a;
1083 		hdmi_ai->CC02_CT47	= active_channels - 1;
1084 		hdmi_ai->CA		= ca;
1085 		hdmi_checksum_audio_infoframe(hdmi_ai);
1086 	} else if (conn_type == 1) { /* DisplayPort */
1087 		struct dp_audio_infoframe *dp_ai = &ai.dp;
1088 
1089 		dp_ai->type		= 0x84;
1090 		dp_ai->len		= 0x1b;
1091 		dp_ai->ver		= 0x11 << 2;
1092 		dp_ai->CC02_CT47	= active_channels - 1;
1093 		dp_ai->CA		= ca;
1094 	} else {
1095 		codec_dbg(codec, "HDMI: unknown connection type at pin %d\n",
1096 			    pin_nid);
1097 		return;
1098 	}
1099 
1100 	/*
1101 	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
1102 	 * sizeof(*dp_ai) to avoid partial match/update problems when
1103 	 * the user switches between HDMI/DP monitors.
1104 	 */
1105 	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
1106 					sizeof(ai))) {
1107 		codec_dbg(codec,
1108 			  "hdmi_pin_setup_infoframe: pin=%d channels=%d ca=0x%02x\n",
1109 			    pin_nid,
1110 			    active_channels, ca);
1111 		hdmi_stop_infoframe_trans(codec, pin_nid);
1112 		hdmi_fill_audio_infoframe(codec, pin_nid,
1113 					    ai.bytes, sizeof(ai));
1114 		hdmi_start_infoframe_trans(codec, pin_nid);
1115 	}
1116 }
1117 
1118 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
1119 				       struct hdmi_spec_per_pin *per_pin,
1120 				       bool non_pcm)
1121 {
1122 	struct hdmi_spec *spec = codec->spec;
1123 	hda_nid_t pin_nid = per_pin->pin_nid;
1124 	int channels = per_pin->channels;
1125 	int active_channels;
1126 	struct hdmi_eld *eld;
1127 	int ca, ordered_ca;
1128 
1129 	if (!channels)
1130 		return;
1131 
1132 	if (is_haswell_plus(codec))
1133 		snd_hda_codec_write(codec, pin_nid, 0,
1134 					    AC_VERB_SET_AMP_GAIN_MUTE,
1135 					    AMP_OUT_UNMUTE);
1136 
1137 	eld = &per_pin->sink_eld;
1138 
1139 	if (!non_pcm && per_pin->chmap_set)
1140 		ca = hdmi_manual_channel_allocation(channels, per_pin->chmap);
1141 	else
1142 		ca = hdmi_channel_allocation(codec, eld, channels);
1143 	if (ca < 0)
1144 		ca = 0;
1145 
1146 	ordered_ca = get_channel_allocation_order(ca);
1147 	active_channels = channel_allocations[ordered_ca].channels;
1148 
1149 	hdmi_set_channel_count(codec, per_pin->cvt_nid, active_channels);
1150 
1151 	/*
1152 	 * always configure channel mapping, it may have been changed by the
1153 	 * user in the meantime
1154 	 */
1155 	hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
1156 				   channels, per_pin->chmap,
1157 				   per_pin->chmap_set);
1158 
1159 	spec->ops.pin_setup_infoframe(codec, pin_nid, ca, active_channels,
1160 				      eld->info.conn_type);
1161 
1162 	per_pin->non_pcm = non_pcm;
1163 }
1164 
1165 /*
1166  * Unsolicited events
1167  */
1168 
1169 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
1170 
1171 static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid)
1172 {
1173 	struct hdmi_spec *spec = codec->spec;
1174 	int pin_idx = pin_nid_to_pin_index(codec, nid);
1175 
1176 	if (pin_idx < 0)
1177 		return;
1178 	if (hdmi_present_sense(get_pin(spec, pin_idx), 1))
1179 		snd_hda_jack_report_sync(codec);
1180 }
1181 
1182 static void jack_callback(struct hda_codec *codec,
1183 			  struct hda_jack_callback *jack)
1184 {
1185 	check_presence_and_report(codec, jack->tbl->nid);
1186 }
1187 
1188 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
1189 {
1190 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1191 	struct hda_jack_tbl *jack;
1192 	int dev_entry = (res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
1193 
1194 	jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
1195 	if (!jack)
1196 		return;
1197 	jack->jack_dirty = 1;
1198 
1199 	codec_dbg(codec,
1200 		"HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
1201 		codec->addr, jack->nid, dev_entry, !!(res & AC_UNSOL_RES_IA),
1202 		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
1203 
1204 	check_presence_and_report(codec, jack->nid);
1205 }
1206 
1207 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
1208 {
1209 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1210 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1211 	int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
1212 	int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
1213 
1214 	codec_info(codec,
1215 		"HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
1216 		codec->addr,
1217 		tag,
1218 		subtag,
1219 		cp_state,
1220 		cp_ready);
1221 
1222 	/* TODO */
1223 	if (cp_state)
1224 		;
1225 	if (cp_ready)
1226 		;
1227 }
1228 
1229 
1230 static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
1231 {
1232 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1233 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1234 
1235 	if (!snd_hda_jack_tbl_get_from_tag(codec, tag)) {
1236 		codec_dbg(codec, "Unexpected HDMI event tag 0x%x\n", tag);
1237 		return;
1238 	}
1239 
1240 	if (subtag == 0)
1241 		hdmi_intrinsic_event(codec, res);
1242 	else
1243 		hdmi_non_intrinsic_event(codec, res);
1244 }
1245 
1246 static void haswell_verify_D0(struct hda_codec *codec,
1247 		hda_nid_t cvt_nid, hda_nid_t nid)
1248 {
1249 	int pwr;
1250 
1251 	/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
1252 	 * thus pins could only choose converter 0 for use. Make sure the
1253 	 * converters are in correct power state */
1254 	if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
1255 		snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
1256 
1257 	if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
1258 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
1259 				    AC_PWRST_D0);
1260 		msleep(40);
1261 		pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
1262 		pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
1263 		codec_dbg(codec, "Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
1264 	}
1265 }
1266 
1267 /*
1268  * Callbacks
1269  */
1270 
1271 /* HBR should be Non-PCM, 8 channels */
1272 #define is_hbr_format(format) \
1273 	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
1274 
1275 static int hdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
1276 			      bool hbr)
1277 {
1278 	int pinctl, new_pinctl;
1279 
1280 	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
1281 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1282 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1283 
1284 		if (pinctl < 0)
1285 			return hbr ? -EINVAL : 0;
1286 
1287 		new_pinctl = pinctl & ~AC_PINCTL_EPT;
1288 		if (hbr)
1289 			new_pinctl |= AC_PINCTL_EPT_HBR;
1290 		else
1291 			new_pinctl |= AC_PINCTL_EPT_NATIVE;
1292 
1293 		codec_dbg(codec,
1294 			  "hdmi_pin_hbr_setup: NID=0x%x, %spinctl=0x%x\n",
1295 			    pin_nid,
1296 			    pinctl == new_pinctl ? "" : "new-",
1297 			    new_pinctl);
1298 
1299 		if (pinctl != new_pinctl)
1300 			snd_hda_codec_write(codec, pin_nid, 0,
1301 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
1302 					    new_pinctl);
1303 	} else if (hbr)
1304 		return -EINVAL;
1305 
1306 	return 0;
1307 }
1308 
1309 static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
1310 			      hda_nid_t pin_nid, u32 stream_tag, int format)
1311 {
1312 	struct hdmi_spec *spec = codec->spec;
1313 	int err;
1314 
1315 	if (is_haswell_plus(codec))
1316 		haswell_verify_D0(codec, cvt_nid, pin_nid);
1317 
1318 	err = spec->ops.pin_hbr_setup(codec, pin_nid, is_hbr_format(format));
1319 
1320 	if (err) {
1321 		codec_dbg(codec, "hdmi_setup_stream: HBR is not supported\n");
1322 		return err;
1323 	}
1324 
1325 	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
1326 	return 0;
1327 }
1328 
1329 static int hdmi_choose_cvt(struct hda_codec *codec,
1330 			int pin_idx, int *cvt_id, int *mux_id)
1331 {
1332 	struct hdmi_spec *spec = codec->spec;
1333 	struct hdmi_spec_per_pin *per_pin;
1334 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1335 	int cvt_idx, mux_idx = 0;
1336 
1337 	per_pin = get_pin(spec, pin_idx);
1338 
1339 	/* Dynamically assign converter to stream */
1340 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1341 		per_cvt = get_cvt(spec, cvt_idx);
1342 
1343 		/* Must not already be assigned */
1344 		if (per_cvt->assigned)
1345 			continue;
1346 		/* Must be in pin's mux's list of converters */
1347 		for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
1348 			if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
1349 				break;
1350 		/* Not in mux list */
1351 		if (mux_idx == per_pin->num_mux_nids)
1352 			continue;
1353 		break;
1354 	}
1355 
1356 	/* No free converters */
1357 	if (cvt_idx == spec->num_cvts)
1358 		return -ENODEV;
1359 
1360 	per_pin->mux_idx = mux_idx;
1361 
1362 	if (cvt_id)
1363 		*cvt_id = cvt_idx;
1364 	if (mux_id)
1365 		*mux_id = mux_idx;
1366 
1367 	return 0;
1368 }
1369 
1370 /* Assure the pin select the right convetor */
1371 static void intel_verify_pin_cvt_connect(struct hda_codec *codec,
1372 			struct hdmi_spec_per_pin *per_pin)
1373 {
1374 	hda_nid_t pin_nid = per_pin->pin_nid;
1375 	int mux_idx, curr;
1376 
1377 	mux_idx = per_pin->mux_idx;
1378 	curr = snd_hda_codec_read(codec, pin_nid, 0,
1379 					  AC_VERB_GET_CONNECT_SEL, 0);
1380 	if (curr != mux_idx)
1381 		snd_hda_codec_write_cache(codec, pin_nid, 0,
1382 					    AC_VERB_SET_CONNECT_SEL,
1383 					    mux_idx);
1384 }
1385 
1386 /* Intel HDMI workaround to fix audio routing issue:
1387  * For some Intel display codecs, pins share the same connection list.
1388  * So a conveter can be selected by multiple pins and playback on any of these
1389  * pins will generate sound on the external display, because audio flows from
1390  * the same converter to the display pipeline. Also muting one pin may make
1391  * other pins have no sound output.
1392  * So this function assures that an assigned converter for a pin is not selected
1393  * by any other pins.
1394  */
1395 static void intel_not_share_assigned_cvt(struct hda_codec *codec,
1396 			hda_nid_t pin_nid, int mux_idx)
1397 {
1398 	struct hdmi_spec *spec = codec->spec;
1399 	hda_nid_t nid;
1400 	int cvt_idx, curr;
1401 	struct hdmi_spec_per_cvt *per_cvt;
1402 
1403 	/* configure all pins, including "no physical connection" ones */
1404 	for_each_hda_codec_node(nid, codec) {
1405 		unsigned int wid_caps = get_wcaps(codec, nid);
1406 		unsigned int wid_type = get_wcaps_type(wid_caps);
1407 
1408 		if (wid_type != AC_WID_PIN)
1409 			continue;
1410 
1411 		if (nid == pin_nid)
1412 			continue;
1413 
1414 		curr = snd_hda_codec_read(codec, nid, 0,
1415 					  AC_VERB_GET_CONNECT_SEL, 0);
1416 		if (curr != mux_idx)
1417 			continue;
1418 
1419 		/* choose an unassigned converter. The conveters in the
1420 		 * connection list are in the same order as in the codec.
1421 		 */
1422 		for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1423 			per_cvt = get_cvt(spec, cvt_idx);
1424 			if (!per_cvt->assigned) {
1425 				codec_dbg(codec,
1426 					  "choose cvt %d for pin nid %d\n",
1427 					cvt_idx, nid);
1428 				snd_hda_codec_write_cache(codec, nid, 0,
1429 					    AC_VERB_SET_CONNECT_SEL,
1430 					    cvt_idx);
1431 				break;
1432 			}
1433 		}
1434 	}
1435 }
1436 
1437 /*
1438  * HDA PCM callbacks
1439  */
1440 static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
1441 			 struct hda_codec *codec,
1442 			 struct snd_pcm_substream *substream)
1443 {
1444 	struct hdmi_spec *spec = codec->spec;
1445 	struct snd_pcm_runtime *runtime = substream->runtime;
1446 	int pin_idx, cvt_idx, mux_idx = 0;
1447 	struct hdmi_spec_per_pin *per_pin;
1448 	struct hdmi_eld *eld;
1449 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1450 	int err;
1451 
1452 	/* Validate hinfo */
1453 	pin_idx = hinfo_to_pin_index(codec, hinfo);
1454 	if (snd_BUG_ON(pin_idx < 0))
1455 		return -EINVAL;
1456 	per_pin = get_pin(spec, pin_idx);
1457 	eld = &per_pin->sink_eld;
1458 
1459 	err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx, &mux_idx);
1460 	if (err < 0)
1461 		return err;
1462 
1463 	per_cvt = get_cvt(spec, cvt_idx);
1464 	/* Claim converter */
1465 	per_cvt->assigned = 1;
1466 	per_pin->cvt_nid = per_cvt->cvt_nid;
1467 	hinfo->nid = per_cvt->cvt_nid;
1468 
1469 	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1470 			    AC_VERB_SET_CONNECT_SEL,
1471 			    mux_idx);
1472 
1473 	/* configure unused pins to choose other converters */
1474 	if (is_haswell_plus(codec) || is_valleyview_plus(codec))
1475 		intel_not_share_assigned_cvt(codec, per_pin->pin_nid, mux_idx);
1476 
1477 	snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
1478 
1479 	/* Initially set the converter's capabilities */
1480 	hinfo->channels_min = per_cvt->channels_min;
1481 	hinfo->channels_max = per_cvt->channels_max;
1482 	hinfo->rates = per_cvt->rates;
1483 	hinfo->formats = per_cvt->formats;
1484 	hinfo->maxbps = per_cvt->maxbps;
1485 
1486 	/* Restrict capabilities by ELD if this isn't disabled */
1487 	if (!static_hdmi_pcm && eld->eld_valid) {
1488 		snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
1489 		if (hinfo->channels_min > hinfo->channels_max ||
1490 		    !hinfo->rates || !hinfo->formats) {
1491 			per_cvt->assigned = 0;
1492 			hinfo->nid = 0;
1493 			snd_hda_spdif_ctls_unassign(codec, pin_idx);
1494 			return -ENODEV;
1495 		}
1496 	}
1497 
1498 	/* Store the updated parameters */
1499 	runtime->hw.channels_min = hinfo->channels_min;
1500 	runtime->hw.channels_max = hinfo->channels_max;
1501 	runtime->hw.formats = hinfo->formats;
1502 	runtime->hw.rates = hinfo->rates;
1503 
1504 	snd_pcm_hw_constraint_step(substream->runtime, 0,
1505 				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1506 	return 0;
1507 }
1508 
1509 /*
1510  * HDA/HDMI auto parsing
1511  */
1512 static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
1513 {
1514 	struct hdmi_spec *spec = codec->spec;
1515 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1516 	hda_nid_t pin_nid = per_pin->pin_nid;
1517 
1518 	if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
1519 		codec_warn(codec,
1520 			   "HDMI: pin %d wcaps %#x does not support connection list\n",
1521 			   pin_nid, get_wcaps(codec, pin_nid));
1522 		return -EINVAL;
1523 	}
1524 
1525 	per_pin->num_mux_nids = snd_hda_get_connections(codec, pin_nid,
1526 							per_pin->mux_nids,
1527 							HDA_MAX_CONNECTIONS);
1528 
1529 	return 0;
1530 }
1531 
1532 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
1533 {
1534 	struct hda_jack_tbl *jack;
1535 	struct hda_codec *codec = per_pin->codec;
1536 	struct hdmi_spec *spec = codec->spec;
1537 	struct hdmi_eld *eld = &spec->temp_eld;
1538 	struct hdmi_eld *pin_eld = &per_pin->sink_eld;
1539 	hda_nid_t pin_nid = per_pin->pin_nid;
1540 	/*
1541 	 * Always execute a GetPinSense verb here, even when called from
1542 	 * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
1543 	 * response's PD bit is not the real PD value, but indicates that
1544 	 * the real PD value changed. An older version of the HD-audio
1545 	 * specification worked this way. Hence, we just ignore the data in
1546 	 * the unsolicited response to avoid custom WARs.
1547 	 */
1548 	int present;
1549 	bool update_eld = false;
1550 	bool eld_changed = false;
1551 	bool ret;
1552 
1553 	snd_hda_power_up_pm(codec);
1554 	present = snd_hda_pin_sense(codec, pin_nid);
1555 
1556 	mutex_lock(&per_pin->lock);
1557 	pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
1558 	if (pin_eld->monitor_present)
1559 		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
1560 	else
1561 		eld->eld_valid = false;
1562 
1563 	codec_dbg(codec,
1564 		"HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
1565 		codec->addr, pin_nid, pin_eld->monitor_present, eld->eld_valid);
1566 
1567 	if (eld->eld_valid) {
1568 		if (spec->ops.pin_get_eld(codec, pin_nid, eld->eld_buffer,
1569 						     &eld->eld_size) < 0)
1570 			eld->eld_valid = false;
1571 		else {
1572 			memset(&eld->info, 0, sizeof(struct parsed_hdmi_eld));
1573 			if (snd_hdmi_parse_eld(codec, &eld->info, eld->eld_buffer,
1574 						    eld->eld_size) < 0)
1575 				eld->eld_valid = false;
1576 		}
1577 
1578 		if (eld->eld_valid) {
1579 			snd_hdmi_show_eld(codec, &eld->info);
1580 			update_eld = true;
1581 		}
1582 		else if (repoll) {
1583 			schedule_delayed_work(&per_pin->work,
1584 					      msecs_to_jiffies(300));
1585 			goto unlock;
1586 		}
1587 	}
1588 
1589 	if (pin_eld->eld_valid != eld->eld_valid)
1590 		eld_changed = true;
1591 
1592 	if (pin_eld->eld_valid && !eld->eld_valid)
1593 		update_eld = true;
1594 
1595 	if (update_eld) {
1596 		bool old_eld_valid = pin_eld->eld_valid;
1597 		pin_eld->eld_valid = eld->eld_valid;
1598 		if (pin_eld->eld_size != eld->eld_size ||
1599 			      memcmp(pin_eld->eld_buffer, eld->eld_buffer,
1600 				     eld->eld_size) != 0) {
1601 			memcpy(pin_eld->eld_buffer, eld->eld_buffer,
1602 			       eld->eld_size);
1603 			eld_changed = true;
1604 		}
1605 		pin_eld->eld_size = eld->eld_size;
1606 		pin_eld->info = eld->info;
1607 
1608 		/*
1609 		 * Re-setup pin and infoframe. This is needed e.g. when
1610 		 * - sink is first plugged-in (infoframe is not set up if !monitor_present)
1611 		 * - transcoder can change during stream playback on Haswell
1612 		 *   and this can make HW reset converter selection on a pin.
1613 		 */
1614 		if (eld->eld_valid && !old_eld_valid && per_pin->setup) {
1615 			if (is_haswell_plus(codec) ||
1616 				is_valleyview_plus(codec)) {
1617 				intel_verify_pin_cvt_connect(codec, per_pin);
1618 				intel_not_share_assigned_cvt(codec, pin_nid,
1619 							per_pin->mux_idx);
1620 			}
1621 
1622 			hdmi_setup_audio_infoframe(codec, per_pin,
1623 						   per_pin->non_pcm);
1624 		}
1625 	}
1626 
1627 	if (eld_changed)
1628 		snd_ctl_notify(codec->card,
1629 			       SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
1630 			       &per_pin->eld_ctl->id);
1631  unlock:
1632 	ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid;
1633 
1634 	jack = snd_hda_jack_tbl_get(codec, pin_nid);
1635 	if (jack)
1636 		jack->block_report = !ret;
1637 
1638 	mutex_unlock(&per_pin->lock);
1639 	snd_hda_power_down_pm(codec);
1640 	return ret;
1641 }
1642 
1643 static void hdmi_repoll_eld(struct work_struct *work)
1644 {
1645 	struct hdmi_spec_per_pin *per_pin =
1646 	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
1647 
1648 	if (per_pin->repoll_count++ > 6)
1649 		per_pin->repoll_count = 0;
1650 
1651 	if (hdmi_present_sense(per_pin, per_pin->repoll_count))
1652 		snd_hda_jack_report_sync(per_pin->codec);
1653 }
1654 
1655 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1656 					     hda_nid_t nid);
1657 
1658 static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
1659 {
1660 	struct hdmi_spec *spec = codec->spec;
1661 	unsigned int caps, config;
1662 	int pin_idx;
1663 	struct hdmi_spec_per_pin *per_pin;
1664 	int err;
1665 
1666 	caps = snd_hda_query_pin_caps(codec, pin_nid);
1667 	if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
1668 		return 0;
1669 
1670 	config = snd_hda_codec_get_pincfg(codec, pin_nid);
1671 	if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
1672 		return 0;
1673 
1674 	if (is_haswell_plus(codec))
1675 		intel_haswell_fixup_connect_list(codec, pin_nid);
1676 
1677 	pin_idx = spec->num_pins;
1678 	per_pin = snd_array_new(&spec->pins);
1679 	if (!per_pin)
1680 		return -ENOMEM;
1681 
1682 	per_pin->pin_nid = pin_nid;
1683 	per_pin->non_pcm = false;
1684 
1685 	err = hdmi_read_pin_conn(codec, pin_idx);
1686 	if (err < 0)
1687 		return err;
1688 
1689 	spec->num_pins++;
1690 
1691 	return 0;
1692 }
1693 
1694 static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1695 {
1696 	struct hdmi_spec *spec = codec->spec;
1697 	struct hdmi_spec_per_cvt *per_cvt;
1698 	unsigned int chans;
1699 	int err;
1700 
1701 	chans = get_wcaps(codec, cvt_nid);
1702 	chans = get_wcaps_channels(chans);
1703 
1704 	per_cvt = snd_array_new(&spec->cvts);
1705 	if (!per_cvt)
1706 		return -ENOMEM;
1707 
1708 	per_cvt->cvt_nid = cvt_nid;
1709 	per_cvt->channels_min = 2;
1710 	if (chans <= 16) {
1711 		per_cvt->channels_max = chans;
1712 		if (chans > spec->channels_max)
1713 			spec->channels_max = chans;
1714 	}
1715 
1716 	err = snd_hda_query_supported_pcm(codec, cvt_nid,
1717 					  &per_cvt->rates,
1718 					  &per_cvt->formats,
1719 					  &per_cvt->maxbps);
1720 	if (err < 0)
1721 		return err;
1722 
1723 	if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
1724 		spec->cvt_nids[spec->num_cvts] = cvt_nid;
1725 	spec->num_cvts++;
1726 
1727 	return 0;
1728 }
1729 
1730 static int hdmi_parse_codec(struct hda_codec *codec)
1731 {
1732 	hda_nid_t nid;
1733 	int i, nodes;
1734 
1735 	nodes = snd_hda_get_sub_nodes(codec, codec->core.afg, &nid);
1736 	if (!nid || nodes < 0) {
1737 		codec_warn(codec, "HDMI: failed to get afg sub nodes\n");
1738 		return -EINVAL;
1739 	}
1740 
1741 	for (i = 0; i < nodes; i++, nid++) {
1742 		unsigned int caps;
1743 		unsigned int type;
1744 
1745 		caps = get_wcaps(codec, nid);
1746 		type = get_wcaps_type(caps);
1747 
1748 		if (!(caps & AC_WCAP_DIGITAL))
1749 			continue;
1750 
1751 		switch (type) {
1752 		case AC_WID_AUD_OUT:
1753 			hdmi_add_cvt(codec, nid);
1754 			break;
1755 		case AC_WID_PIN:
1756 			hdmi_add_pin(codec, nid);
1757 			break;
1758 		}
1759 	}
1760 
1761 	return 0;
1762 }
1763 
1764 /*
1765  */
1766 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1767 {
1768 	struct hda_spdif_out *spdif;
1769 	bool non_pcm;
1770 
1771 	mutex_lock(&codec->spdif_mutex);
1772 	spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
1773 	non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1774 	mutex_unlock(&codec->spdif_mutex);
1775 	return non_pcm;
1776 }
1777 
1778 
1779 /*
1780  * HDMI callbacks
1781  */
1782 
1783 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1784 					   struct hda_codec *codec,
1785 					   unsigned int stream_tag,
1786 					   unsigned int format,
1787 					   struct snd_pcm_substream *substream)
1788 {
1789 	hda_nid_t cvt_nid = hinfo->nid;
1790 	struct hdmi_spec *spec = codec->spec;
1791 	int pin_idx = hinfo_to_pin_index(codec, hinfo);
1792 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1793 	hda_nid_t pin_nid = per_pin->pin_nid;
1794 	bool non_pcm;
1795 	int pinctl;
1796 
1797 	if (is_haswell_plus(codec) || is_valleyview_plus(codec)) {
1798 		/* Verify pin:cvt selections to avoid silent audio after S3.
1799 		 * After S3, the audio driver restores pin:cvt selections
1800 		 * but this can happen before gfx is ready and such selection
1801 		 * is overlooked by HW. Thus multiple pins can share a same
1802 		 * default convertor and mute control will affect each other,
1803 		 * which can cause a resumed audio playback become silent
1804 		 * after S3.
1805 		 */
1806 		intel_verify_pin_cvt_connect(codec, per_pin);
1807 		intel_not_share_assigned_cvt(codec, pin_nid, per_pin->mux_idx);
1808 	}
1809 
1810 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1811 	mutex_lock(&per_pin->lock);
1812 	per_pin->channels = substream->runtime->channels;
1813 	per_pin->setup = true;
1814 
1815 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1816 	mutex_unlock(&per_pin->lock);
1817 
1818 	if (spec->dyn_pin_out) {
1819 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1820 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1821 		snd_hda_codec_write(codec, pin_nid, 0,
1822 				    AC_VERB_SET_PIN_WIDGET_CONTROL,
1823 				    pinctl | PIN_OUT);
1824 	}
1825 
1826 	return spec->ops.setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
1827 }
1828 
1829 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1830 					     struct hda_codec *codec,
1831 					     struct snd_pcm_substream *substream)
1832 {
1833 	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1834 	return 0;
1835 }
1836 
1837 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
1838 			  struct hda_codec *codec,
1839 			  struct snd_pcm_substream *substream)
1840 {
1841 	struct hdmi_spec *spec = codec->spec;
1842 	int cvt_idx, pin_idx;
1843 	struct hdmi_spec_per_cvt *per_cvt;
1844 	struct hdmi_spec_per_pin *per_pin;
1845 	int pinctl;
1846 
1847 	if (hinfo->nid) {
1848 		cvt_idx = cvt_nid_to_cvt_index(codec, hinfo->nid);
1849 		if (snd_BUG_ON(cvt_idx < 0))
1850 			return -EINVAL;
1851 		per_cvt = get_cvt(spec, cvt_idx);
1852 
1853 		snd_BUG_ON(!per_cvt->assigned);
1854 		per_cvt->assigned = 0;
1855 		hinfo->nid = 0;
1856 
1857 		pin_idx = hinfo_to_pin_index(codec, hinfo);
1858 		if (snd_BUG_ON(pin_idx < 0))
1859 			return -EINVAL;
1860 		per_pin = get_pin(spec, pin_idx);
1861 
1862 		if (spec->dyn_pin_out) {
1863 			pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
1864 					AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1865 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
1866 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
1867 					    pinctl & ~PIN_OUT);
1868 		}
1869 
1870 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
1871 
1872 		mutex_lock(&per_pin->lock);
1873 		per_pin->chmap_set = false;
1874 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1875 
1876 		per_pin->setup = false;
1877 		per_pin->channels = 0;
1878 		mutex_unlock(&per_pin->lock);
1879 	}
1880 
1881 	return 0;
1882 }
1883 
1884 static const struct hda_pcm_ops generic_ops = {
1885 	.open = hdmi_pcm_open,
1886 	.close = hdmi_pcm_close,
1887 	.prepare = generic_hdmi_playback_pcm_prepare,
1888 	.cleanup = generic_hdmi_playback_pcm_cleanup,
1889 };
1890 
1891 /*
1892  * ALSA API channel-map control callbacks
1893  */
1894 static int hdmi_chmap_ctl_info(struct snd_kcontrol *kcontrol,
1895 			       struct snd_ctl_elem_info *uinfo)
1896 {
1897 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1898 	struct hda_codec *codec = info->private_data;
1899 	struct hdmi_spec *spec = codec->spec;
1900 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1901 	uinfo->count = spec->channels_max;
1902 	uinfo->value.integer.min = 0;
1903 	uinfo->value.integer.max = SNDRV_CHMAP_LAST;
1904 	return 0;
1905 }
1906 
1907 static int hdmi_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
1908 						  int channels)
1909 {
1910 	/* If the speaker allocation matches the channel count, it is OK.*/
1911 	if (cap->channels != channels)
1912 		return -1;
1913 
1914 	/* all channels are remappable freely */
1915 	return SNDRV_CTL_TLVT_CHMAP_VAR;
1916 }
1917 
1918 static void hdmi_cea_alloc_to_tlv_chmap(struct cea_channel_speaker_allocation *cap,
1919 					unsigned int *chmap, int channels)
1920 {
1921 	int count = 0;
1922 	int c;
1923 
1924 	for (c = 7; c >= 0; c--) {
1925 		int spk = cap->speakers[c];
1926 		if (!spk)
1927 			continue;
1928 
1929 		chmap[count++] = spk_to_chmap(spk);
1930 	}
1931 
1932 	WARN_ON(count != channels);
1933 }
1934 
1935 static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1936 			      unsigned int size, unsigned int __user *tlv)
1937 {
1938 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1939 	struct hda_codec *codec = info->private_data;
1940 	struct hdmi_spec *spec = codec->spec;
1941 	unsigned int __user *dst;
1942 	int chs, count = 0;
1943 
1944 	if (size < 8)
1945 		return -ENOMEM;
1946 	if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
1947 		return -EFAULT;
1948 	size -= 8;
1949 	dst = tlv + 2;
1950 	for (chs = 2; chs <= spec->channels_max; chs++) {
1951 		int i;
1952 		struct cea_channel_speaker_allocation *cap;
1953 		cap = channel_allocations;
1954 		for (i = 0; i < ARRAY_SIZE(channel_allocations); i++, cap++) {
1955 			int chs_bytes = chs * 4;
1956 			int type = spec->ops.chmap_cea_alloc_validate_get_type(cap, chs);
1957 			unsigned int tlv_chmap[8];
1958 
1959 			if (type < 0)
1960 				continue;
1961 			if (size < 8)
1962 				return -ENOMEM;
1963 			if (put_user(type, dst) ||
1964 			    put_user(chs_bytes, dst + 1))
1965 				return -EFAULT;
1966 			dst += 2;
1967 			size -= 8;
1968 			count += 8;
1969 			if (size < chs_bytes)
1970 				return -ENOMEM;
1971 			size -= chs_bytes;
1972 			count += chs_bytes;
1973 			spec->ops.cea_alloc_to_tlv_chmap(cap, tlv_chmap, chs);
1974 			if (copy_to_user(dst, tlv_chmap, chs_bytes))
1975 				return -EFAULT;
1976 			dst += chs;
1977 		}
1978 	}
1979 	if (put_user(count, tlv + 1))
1980 		return -EFAULT;
1981 	return 0;
1982 }
1983 
1984 static int hdmi_chmap_ctl_get(struct snd_kcontrol *kcontrol,
1985 			      struct snd_ctl_elem_value *ucontrol)
1986 {
1987 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1988 	struct hda_codec *codec = info->private_data;
1989 	struct hdmi_spec *spec = codec->spec;
1990 	int pin_idx = kcontrol->private_value;
1991 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1992 	int i;
1993 
1994 	for (i = 0; i < ARRAY_SIZE(per_pin->chmap); i++)
1995 		ucontrol->value.integer.value[i] = per_pin->chmap[i];
1996 	return 0;
1997 }
1998 
1999 static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
2000 			      struct snd_ctl_elem_value *ucontrol)
2001 {
2002 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
2003 	struct hda_codec *codec = info->private_data;
2004 	struct hdmi_spec *spec = codec->spec;
2005 	int pin_idx = kcontrol->private_value;
2006 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2007 	unsigned int ctl_idx;
2008 	struct snd_pcm_substream *substream;
2009 	unsigned char chmap[8];
2010 	int i, err, ca, prepared = 0;
2011 
2012 	ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
2013 	substream = snd_pcm_chmap_substream(info, ctl_idx);
2014 	if (!substream || !substream->runtime)
2015 		return 0; /* just for avoiding error from alsactl restore */
2016 	switch (substream->runtime->status->state) {
2017 	case SNDRV_PCM_STATE_OPEN:
2018 	case SNDRV_PCM_STATE_SETUP:
2019 		break;
2020 	case SNDRV_PCM_STATE_PREPARED:
2021 		prepared = 1;
2022 		break;
2023 	default:
2024 		return -EBUSY;
2025 	}
2026 	memset(chmap, 0, sizeof(chmap));
2027 	for (i = 0; i < ARRAY_SIZE(chmap); i++)
2028 		chmap[i] = ucontrol->value.integer.value[i];
2029 	if (!memcmp(chmap, per_pin->chmap, sizeof(chmap)))
2030 		return 0;
2031 	ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap);
2032 	if (ca < 0)
2033 		return -EINVAL;
2034 	if (spec->ops.chmap_validate) {
2035 		err = spec->ops.chmap_validate(ca, ARRAY_SIZE(chmap), chmap);
2036 		if (err)
2037 			return err;
2038 	}
2039 	mutex_lock(&per_pin->lock);
2040 	per_pin->chmap_set = true;
2041 	memcpy(per_pin->chmap, chmap, sizeof(chmap));
2042 	if (prepared)
2043 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
2044 	mutex_unlock(&per_pin->lock);
2045 
2046 	return 0;
2047 }
2048 
2049 static int generic_hdmi_build_pcms(struct hda_codec *codec)
2050 {
2051 	struct hdmi_spec *spec = codec->spec;
2052 	int pin_idx;
2053 
2054 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2055 		struct hda_pcm *info;
2056 		struct hda_pcm_stream *pstr;
2057 
2058 		info = snd_hda_codec_pcm_new(codec, "HDMI %d", pin_idx);
2059 		if (!info)
2060 			return -ENOMEM;
2061 		spec->pcm_rec[pin_idx] = info;
2062 		info->pcm_type = HDA_PCM_TYPE_HDMI;
2063 		info->own_chmap = true;
2064 
2065 		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2066 		pstr->substreams = 1;
2067 		pstr->ops = generic_ops;
2068 		/* other pstr fields are set in open */
2069 	}
2070 
2071 	return 0;
2072 }
2073 
2074 static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
2075 {
2076 	char hdmi_str[32] = "HDMI/DP";
2077 	struct hdmi_spec *spec = codec->spec;
2078 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2079 	int pcmdev = get_pcm_rec(spec, pin_idx)->device;
2080 
2081 	if (pcmdev > 0)
2082 		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
2083 	if (!is_jack_detectable(codec, per_pin->pin_nid))
2084 		strncat(hdmi_str, " Phantom",
2085 			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
2086 
2087 	return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str);
2088 }
2089 
2090 static int generic_hdmi_build_controls(struct hda_codec *codec)
2091 {
2092 	struct hdmi_spec *spec = codec->spec;
2093 	int err;
2094 	int pin_idx;
2095 
2096 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2097 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2098 
2099 		err = generic_hdmi_build_jack(codec, pin_idx);
2100 		if (err < 0)
2101 			return err;
2102 
2103 		err = snd_hda_create_dig_out_ctls(codec,
2104 						  per_pin->pin_nid,
2105 						  per_pin->mux_nids[0],
2106 						  HDA_PCM_TYPE_HDMI);
2107 		if (err < 0)
2108 			return err;
2109 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
2110 
2111 		/* add control for ELD Bytes */
2112 		err = hdmi_create_eld_ctl(codec, pin_idx,
2113 					  get_pcm_rec(spec, pin_idx)->device);
2114 
2115 		if (err < 0)
2116 			return err;
2117 
2118 		hdmi_present_sense(per_pin, 0);
2119 	}
2120 
2121 	/* add channel maps */
2122 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2123 		struct hda_pcm *pcm;
2124 		struct snd_pcm_chmap *chmap;
2125 		struct snd_kcontrol *kctl;
2126 		int i;
2127 
2128 		pcm = spec->pcm_rec[pin_idx];
2129 		if (!pcm || !pcm->pcm)
2130 			break;
2131 		err = snd_pcm_add_chmap_ctls(pcm->pcm,
2132 					     SNDRV_PCM_STREAM_PLAYBACK,
2133 					     NULL, 0, pin_idx, &chmap);
2134 		if (err < 0)
2135 			return err;
2136 		/* override handlers */
2137 		chmap->private_data = codec;
2138 		kctl = chmap->kctl;
2139 		for (i = 0; i < kctl->count; i++)
2140 			kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
2141 		kctl->info = hdmi_chmap_ctl_info;
2142 		kctl->get = hdmi_chmap_ctl_get;
2143 		kctl->put = hdmi_chmap_ctl_put;
2144 		kctl->tlv.c = hdmi_chmap_ctl_tlv;
2145 	}
2146 
2147 	return 0;
2148 }
2149 
2150 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
2151 {
2152 	struct hdmi_spec *spec = codec->spec;
2153 	int pin_idx;
2154 
2155 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2156 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2157 
2158 		per_pin->codec = codec;
2159 		mutex_init(&per_pin->lock);
2160 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
2161 		eld_proc_new(per_pin, pin_idx);
2162 	}
2163 	return 0;
2164 }
2165 
2166 static int generic_hdmi_init(struct hda_codec *codec)
2167 {
2168 	struct hdmi_spec *spec = codec->spec;
2169 	int pin_idx;
2170 
2171 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2172 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2173 		hda_nid_t pin_nid = per_pin->pin_nid;
2174 
2175 		hdmi_init_pin(codec, pin_nid);
2176 		snd_hda_jack_detect_enable_callback(codec, pin_nid,
2177 			codec->jackpoll_interval > 0 ? jack_callback : NULL);
2178 	}
2179 	return 0;
2180 }
2181 
2182 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
2183 {
2184 	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
2185 	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
2186 }
2187 
2188 static void hdmi_array_free(struct hdmi_spec *spec)
2189 {
2190 	snd_array_free(&spec->pins);
2191 	snd_array_free(&spec->cvts);
2192 }
2193 
2194 static void generic_hdmi_free(struct hda_codec *codec)
2195 {
2196 	struct hdmi_spec *spec = codec->spec;
2197 	int pin_idx;
2198 
2199 	if (is_haswell_plus(codec) || is_valleyview_plus(codec))
2200 		snd_hdac_i915_register_notifier(NULL);
2201 
2202 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2203 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2204 
2205 		cancel_delayed_work_sync(&per_pin->work);
2206 		eld_proc_free(per_pin);
2207 	}
2208 
2209 	hdmi_array_free(spec);
2210 	kfree(spec);
2211 }
2212 
2213 #ifdef CONFIG_PM
2214 static int generic_hdmi_resume(struct hda_codec *codec)
2215 {
2216 	struct hdmi_spec *spec = codec->spec;
2217 	int pin_idx;
2218 
2219 	codec->patch_ops.init(codec);
2220 	regcache_sync(codec->core.regmap);
2221 
2222 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2223 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2224 		hdmi_present_sense(per_pin, 1);
2225 	}
2226 	return 0;
2227 }
2228 #endif
2229 
2230 static const struct hda_codec_ops generic_hdmi_patch_ops = {
2231 	.init			= generic_hdmi_init,
2232 	.free			= generic_hdmi_free,
2233 	.build_pcms		= generic_hdmi_build_pcms,
2234 	.build_controls		= generic_hdmi_build_controls,
2235 	.unsol_event		= hdmi_unsol_event,
2236 #ifdef CONFIG_PM
2237 	.resume			= generic_hdmi_resume,
2238 #endif
2239 };
2240 
2241 static const struct hdmi_ops generic_standard_hdmi_ops = {
2242 	.pin_get_eld				= snd_hdmi_get_eld,
2243 	.pin_get_slot_channel			= hdmi_pin_get_slot_channel,
2244 	.pin_set_slot_channel			= hdmi_pin_set_slot_channel,
2245 	.pin_setup_infoframe			= hdmi_pin_setup_infoframe,
2246 	.pin_hbr_setup				= hdmi_pin_hbr_setup,
2247 	.setup_stream				= hdmi_setup_stream,
2248 	.chmap_cea_alloc_validate_get_type	= hdmi_chmap_cea_alloc_validate_get_type,
2249 	.cea_alloc_to_tlv_chmap			= hdmi_cea_alloc_to_tlv_chmap,
2250 };
2251 
2252 
2253 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
2254 					     hda_nid_t nid)
2255 {
2256 	struct hdmi_spec *spec = codec->spec;
2257 	hda_nid_t conns[4];
2258 	int nconns;
2259 
2260 	nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
2261 	if (nconns == spec->num_cvts &&
2262 	    !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
2263 		return;
2264 
2265 	/* override pins connection list */
2266 	codec_dbg(codec, "hdmi: haswell: override pin connection 0x%x\n", nid);
2267 	snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
2268 }
2269 
2270 #define INTEL_VENDOR_NID 0x08
2271 #define INTEL_GET_VENDOR_VERB 0xf81
2272 #define INTEL_SET_VENDOR_VERB 0x781
2273 #define INTEL_EN_DP12			0x02 /* enable DP 1.2 features */
2274 #define INTEL_EN_ALL_PIN_CVTS	0x01 /* enable 2nd & 3rd pins and convertors */
2275 
2276 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
2277 					  bool update_tree)
2278 {
2279 	unsigned int vendor_param;
2280 
2281 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2282 				INTEL_GET_VENDOR_VERB, 0);
2283 	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
2284 		return;
2285 
2286 	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
2287 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2288 				INTEL_SET_VENDOR_VERB, vendor_param);
2289 	if (vendor_param == -1)
2290 		return;
2291 
2292 	if (update_tree)
2293 		snd_hda_codec_update_widgets(codec);
2294 }
2295 
2296 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
2297 {
2298 	unsigned int vendor_param;
2299 
2300 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2301 				INTEL_GET_VENDOR_VERB, 0);
2302 	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
2303 		return;
2304 
2305 	/* enable DP1.2 mode */
2306 	vendor_param |= INTEL_EN_DP12;
2307 	snd_hdac_regmap_add_vendor_verb(&codec->core, INTEL_SET_VENDOR_VERB);
2308 	snd_hda_codec_write_cache(codec, INTEL_VENDOR_NID, 0,
2309 				INTEL_SET_VENDOR_VERB, vendor_param);
2310 }
2311 
2312 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
2313  * Otherwise you may get severe h/w communication errors.
2314  */
2315 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2316 				unsigned int power_state)
2317 {
2318 	if (power_state == AC_PWRST_D0) {
2319 		intel_haswell_enable_all_pins(codec, false);
2320 		intel_haswell_fixup_enable_dp12(codec);
2321 	}
2322 
2323 	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
2324 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
2325 }
2326 
2327 static void intel_pin_eld_notify(void *audio_ptr, int port)
2328 {
2329 	struct hda_codec *codec = audio_ptr;
2330 	int pin_nid = port + 0x04;
2331 
2332 	check_presence_and_report(codec, pin_nid);
2333 }
2334 
2335 static int patch_generic_hdmi(struct hda_codec *codec)
2336 {
2337 	struct hdmi_spec *spec;
2338 
2339 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2340 	if (spec == NULL)
2341 		return -ENOMEM;
2342 
2343 	spec->ops = generic_standard_hdmi_ops;
2344 	codec->spec = spec;
2345 	hdmi_array_init(spec, 4);
2346 
2347 	if (is_haswell_plus(codec)) {
2348 		intel_haswell_enable_all_pins(codec, true);
2349 		intel_haswell_fixup_enable_dp12(codec);
2350 	}
2351 
2352 	/* For Valleyview/Cherryview, only the display codec is in the display
2353 	 * power well and can use link_power ops to request/release the power.
2354 	 * For Haswell/Broadwell, the controller is also in the power well and
2355 	 * can cover the codec power request, and so need not set this flag.
2356 	 * For previous platforms, there is no such power well feature.
2357 	 */
2358 	if (is_valleyview_plus(codec) || is_skylake(codec))
2359 		codec->core.link_power_control = 1;
2360 
2361 	if (is_haswell_plus(codec) || is_valleyview_plus(codec)) {
2362 		codec->depop_delay = 0;
2363 		spec->i915_audio_ops.audio_ptr = codec;
2364 		spec->i915_audio_ops.pin_eld_notify = intel_pin_eld_notify;
2365 		snd_hdac_i915_register_notifier(&spec->i915_audio_ops);
2366 	}
2367 
2368 	if (hdmi_parse_codec(codec) < 0) {
2369 		codec->spec = NULL;
2370 		kfree(spec);
2371 		return -EINVAL;
2372 	}
2373 	codec->patch_ops = generic_hdmi_patch_ops;
2374 	if (is_haswell_plus(codec)) {
2375 		codec->patch_ops.set_power_state = haswell_set_power_state;
2376 		codec->dp_mst = true;
2377 	}
2378 
2379 	/* Enable runtime pm for HDMI audio codec of HSW/BDW/SKL/BYT/BSW */
2380 	if (is_haswell_plus(codec) || is_valleyview_plus(codec))
2381 		codec->auto_runtime_pm = 1;
2382 
2383 	generic_hdmi_init_per_pins(codec);
2384 
2385 	init_channel_allocations();
2386 
2387 	return 0;
2388 }
2389 
2390 /*
2391  * Shared non-generic implementations
2392  */
2393 
2394 static int simple_playback_build_pcms(struct hda_codec *codec)
2395 {
2396 	struct hdmi_spec *spec = codec->spec;
2397 	struct hda_pcm *info;
2398 	unsigned int chans;
2399 	struct hda_pcm_stream *pstr;
2400 	struct hdmi_spec_per_cvt *per_cvt;
2401 
2402 	per_cvt = get_cvt(spec, 0);
2403 	chans = get_wcaps(codec, per_cvt->cvt_nid);
2404 	chans = get_wcaps_channels(chans);
2405 
2406 	info = snd_hda_codec_pcm_new(codec, "HDMI 0");
2407 	if (!info)
2408 		return -ENOMEM;
2409 	spec->pcm_rec[0] = info;
2410 	info->pcm_type = HDA_PCM_TYPE_HDMI;
2411 	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2412 	*pstr = spec->pcm_playback;
2413 	pstr->nid = per_cvt->cvt_nid;
2414 	if (pstr->channels_max <= 2 && chans && chans <= 16)
2415 		pstr->channels_max = chans;
2416 
2417 	return 0;
2418 }
2419 
2420 /* unsolicited event for jack sensing */
2421 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2422 				    unsigned int res)
2423 {
2424 	snd_hda_jack_set_dirty_all(codec);
2425 	snd_hda_jack_report_sync(codec);
2426 }
2427 
2428 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2429  * as long as spec->pins[] is set correctly
2430  */
2431 #define simple_hdmi_build_jack	generic_hdmi_build_jack
2432 
2433 static int simple_playback_build_controls(struct hda_codec *codec)
2434 {
2435 	struct hdmi_spec *spec = codec->spec;
2436 	struct hdmi_spec_per_cvt *per_cvt;
2437 	int err;
2438 
2439 	per_cvt = get_cvt(spec, 0);
2440 	err = snd_hda_create_dig_out_ctls(codec, per_cvt->cvt_nid,
2441 					  per_cvt->cvt_nid,
2442 					  HDA_PCM_TYPE_HDMI);
2443 	if (err < 0)
2444 		return err;
2445 	return simple_hdmi_build_jack(codec, 0);
2446 }
2447 
2448 static int simple_playback_init(struct hda_codec *codec)
2449 {
2450 	struct hdmi_spec *spec = codec->spec;
2451 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2452 	hda_nid_t pin = per_pin->pin_nid;
2453 
2454 	snd_hda_codec_write(codec, pin, 0,
2455 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2456 	/* some codecs require to unmute the pin */
2457 	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2458 		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2459 				    AMP_OUT_UNMUTE);
2460 	snd_hda_jack_detect_enable(codec, pin);
2461 	return 0;
2462 }
2463 
2464 static void simple_playback_free(struct hda_codec *codec)
2465 {
2466 	struct hdmi_spec *spec = codec->spec;
2467 
2468 	hdmi_array_free(spec);
2469 	kfree(spec);
2470 }
2471 
2472 /*
2473  * Nvidia specific implementations
2474  */
2475 
2476 #define Nv_VERB_SET_Channel_Allocation          0xF79
2477 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2478 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2479 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2480 
2481 #define nvhdmi_master_con_nid_7x	0x04
2482 #define nvhdmi_master_pin_nid_7x	0x05
2483 
2484 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2485 	/*front, rear, clfe, rear_surr */
2486 	0x6, 0x8, 0xa, 0xc,
2487 };
2488 
2489 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2490 	/* set audio protect on */
2491 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2492 	/* enable digital output on pin widget */
2493 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2494 	{} /* terminator */
2495 };
2496 
2497 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2498 	/* set audio protect on */
2499 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2500 	/* enable digital output on pin widget */
2501 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2502 	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2503 	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2504 	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2505 	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2506 	{} /* terminator */
2507 };
2508 
2509 #ifdef LIMITED_RATE_FMT_SUPPORT
2510 /* support only the safe format and rate */
2511 #define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
2512 #define SUPPORTED_MAXBPS	16
2513 #define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
2514 #else
2515 /* support all rates and formats */
2516 #define SUPPORTED_RATES \
2517 	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2518 	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2519 	 SNDRV_PCM_RATE_192000)
2520 #define SUPPORTED_MAXBPS	24
2521 #define SUPPORTED_FORMATS \
2522 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2523 #endif
2524 
2525 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2526 {
2527 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2528 	return 0;
2529 }
2530 
2531 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2532 {
2533 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2534 	return 0;
2535 }
2536 
2537 static unsigned int channels_2_6_8[] = {
2538 	2, 6, 8
2539 };
2540 
2541 static unsigned int channels_2_8[] = {
2542 	2, 8
2543 };
2544 
2545 static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2546 	.count = ARRAY_SIZE(channels_2_6_8),
2547 	.list = channels_2_6_8,
2548 	.mask = 0,
2549 };
2550 
2551 static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2552 	.count = ARRAY_SIZE(channels_2_8),
2553 	.list = channels_2_8,
2554 	.mask = 0,
2555 };
2556 
2557 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2558 				    struct hda_codec *codec,
2559 				    struct snd_pcm_substream *substream)
2560 {
2561 	struct hdmi_spec *spec = codec->spec;
2562 	struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2563 
2564 	switch (codec->preset->id) {
2565 	case 0x10de0002:
2566 	case 0x10de0003:
2567 	case 0x10de0005:
2568 	case 0x10de0006:
2569 		hw_constraints_channels = &hw_constraints_2_8_channels;
2570 		break;
2571 	case 0x10de0007:
2572 		hw_constraints_channels = &hw_constraints_2_6_8_channels;
2573 		break;
2574 	default:
2575 		break;
2576 	}
2577 
2578 	if (hw_constraints_channels != NULL) {
2579 		snd_pcm_hw_constraint_list(substream->runtime, 0,
2580 				SNDRV_PCM_HW_PARAM_CHANNELS,
2581 				hw_constraints_channels);
2582 	} else {
2583 		snd_pcm_hw_constraint_step(substream->runtime, 0,
2584 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2585 	}
2586 
2587 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2588 }
2589 
2590 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2591 				     struct hda_codec *codec,
2592 				     struct snd_pcm_substream *substream)
2593 {
2594 	struct hdmi_spec *spec = codec->spec;
2595 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2596 }
2597 
2598 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2599 				       struct hda_codec *codec,
2600 				       unsigned int stream_tag,
2601 				       unsigned int format,
2602 				       struct snd_pcm_substream *substream)
2603 {
2604 	struct hdmi_spec *spec = codec->spec;
2605 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2606 					     stream_tag, format, substream);
2607 }
2608 
2609 static const struct hda_pcm_stream simple_pcm_playback = {
2610 	.substreams = 1,
2611 	.channels_min = 2,
2612 	.channels_max = 2,
2613 	.ops = {
2614 		.open = simple_playback_pcm_open,
2615 		.close = simple_playback_pcm_close,
2616 		.prepare = simple_playback_pcm_prepare
2617 	},
2618 };
2619 
2620 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2621 	.build_controls = simple_playback_build_controls,
2622 	.build_pcms = simple_playback_build_pcms,
2623 	.init = simple_playback_init,
2624 	.free = simple_playback_free,
2625 	.unsol_event = simple_hdmi_unsol_event,
2626 };
2627 
2628 static int patch_simple_hdmi(struct hda_codec *codec,
2629 			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
2630 {
2631 	struct hdmi_spec *spec;
2632 	struct hdmi_spec_per_cvt *per_cvt;
2633 	struct hdmi_spec_per_pin *per_pin;
2634 
2635 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2636 	if (!spec)
2637 		return -ENOMEM;
2638 
2639 	codec->spec = spec;
2640 	hdmi_array_init(spec, 1);
2641 
2642 	spec->multiout.num_dacs = 0;  /* no analog */
2643 	spec->multiout.max_channels = 2;
2644 	spec->multiout.dig_out_nid = cvt_nid;
2645 	spec->num_cvts = 1;
2646 	spec->num_pins = 1;
2647 	per_pin = snd_array_new(&spec->pins);
2648 	per_cvt = snd_array_new(&spec->cvts);
2649 	if (!per_pin || !per_cvt) {
2650 		simple_playback_free(codec);
2651 		return -ENOMEM;
2652 	}
2653 	per_cvt->cvt_nid = cvt_nid;
2654 	per_pin->pin_nid = pin_nid;
2655 	spec->pcm_playback = simple_pcm_playback;
2656 
2657 	codec->patch_ops = simple_hdmi_patch_ops;
2658 
2659 	return 0;
2660 }
2661 
2662 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2663 						    int channels)
2664 {
2665 	unsigned int chanmask;
2666 	int chan = channels ? (channels - 1) : 1;
2667 
2668 	switch (channels) {
2669 	default:
2670 	case 0:
2671 	case 2:
2672 		chanmask = 0x00;
2673 		break;
2674 	case 4:
2675 		chanmask = 0x08;
2676 		break;
2677 	case 6:
2678 		chanmask = 0x0b;
2679 		break;
2680 	case 8:
2681 		chanmask = 0x13;
2682 		break;
2683 	}
2684 
2685 	/* Set the audio infoframe channel allocation and checksum fields.  The
2686 	 * channel count is computed implicitly by the hardware. */
2687 	snd_hda_codec_write(codec, 0x1, 0,
2688 			Nv_VERB_SET_Channel_Allocation, chanmask);
2689 
2690 	snd_hda_codec_write(codec, 0x1, 0,
2691 			Nv_VERB_SET_Info_Frame_Checksum,
2692 			(0x71 - chan - chanmask));
2693 }
2694 
2695 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
2696 				   struct hda_codec *codec,
2697 				   struct snd_pcm_substream *substream)
2698 {
2699 	struct hdmi_spec *spec = codec->spec;
2700 	int i;
2701 
2702 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
2703 			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
2704 	for (i = 0; i < 4; i++) {
2705 		/* set the stream id */
2706 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2707 				AC_VERB_SET_CHANNEL_STREAMID, 0);
2708 		/* set the stream format */
2709 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2710 				AC_VERB_SET_STREAM_FORMAT, 0);
2711 	}
2712 
2713 	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
2714 	 * streams are disabled. */
2715 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2716 
2717 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2718 }
2719 
2720 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
2721 				     struct hda_codec *codec,
2722 				     unsigned int stream_tag,
2723 				     unsigned int format,
2724 				     struct snd_pcm_substream *substream)
2725 {
2726 	int chs;
2727 	unsigned int dataDCC2, channel_id;
2728 	int i;
2729 	struct hdmi_spec *spec = codec->spec;
2730 	struct hda_spdif_out *spdif;
2731 	struct hdmi_spec_per_cvt *per_cvt;
2732 
2733 	mutex_lock(&codec->spdif_mutex);
2734 	per_cvt = get_cvt(spec, 0);
2735 	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
2736 
2737 	chs = substream->runtime->channels;
2738 
2739 	dataDCC2 = 0x2;
2740 
2741 	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2742 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
2743 		snd_hda_codec_write(codec,
2744 				nvhdmi_master_con_nid_7x,
2745 				0,
2746 				AC_VERB_SET_DIGI_CONVERT_1,
2747 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2748 
2749 	/* set the stream id */
2750 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2751 			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
2752 
2753 	/* set the stream format */
2754 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2755 			AC_VERB_SET_STREAM_FORMAT, format);
2756 
2757 	/* turn on again (if needed) */
2758 	/* enable and set the channel status audio/data flag */
2759 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
2760 		snd_hda_codec_write(codec,
2761 				nvhdmi_master_con_nid_7x,
2762 				0,
2763 				AC_VERB_SET_DIGI_CONVERT_1,
2764 				spdif->ctls & 0xff);
2765 		snd_hda_codec_write(codec,
2766 				nvhdmi_master_con_nid_7x,
2767 				0,
2768 				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2769 	}
2770 
2771 	for (i = 0; i < 4; i++) {
2772 		if (chs == 2)
2773 			channel_id = 0;
2774 		else
2775 			channel_id = i * 2;
2776 
2777 		/* turn off SPDIF once;
2778 		 *otherwise the IEC958 bits won't be updated
2779 		 */
2780 		if (codec->spdif_status_reset &&
2781 		(spdif->ctls & AC_DIG1_ENABLE))
2782 			snd_hda_codec_write(codec,
2783 				nvhdmi_con_nids_7x[i],
2784 				0,
2785 				AC_VERB_SET_DIGI_CONVERT_1,
2786 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2787 		/* set the stream id */
2788 		snd_hda_codec_write(codec,
2789 				nvhdmi_con_nids_7x[i],
2790 				0,
2791 				AC_VERB_SET_CHANNEL_STREAMID,
2792 				(stream_tag << 4) | channel_id);
2793 		/* set the stream format */
2794 		snd_hda_codec_write(codec,
2795 				nvhdmi_con_nids_7x[i],
2796 				0,
2797 				AC_VERB_SET_STREAM_FORMAT,
2798 				format);
2799 		/* turn on again (if needed) */
2800 		/* enable and set the channel status audio/data flag */
2801 		if (codec->spdif_status_reset &&
2802 		(spdif->ctls & AC_DIG1_ENABLE)) {
2803 			snd_hda_codec_write(codec,
2804 					nvhdmi_con_nids_7x[i],
2805 					0,
2806 					AC_VERB_SET_DIGI_CONVERT_1,
2807 					spdif->ctls & 0xff);
2808 			snd_hda_codec_write(codec,
2809 					nvhdmi_con_nids_7x[i],
2810 					0,
2811 					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2812 		}
2813 	}
2814 
2815 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
2816 
2817 	mutex_unlock(&codec->spdif_mutex);
2818 	return 0;
2819 }
2820 
2821 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
2822 	.substreams = 1,
2823 	.channels_min = 2,
2824 	.channels_max = 8,
2825 	.nid = nvhdmi_master_con_nid_7x,
2826 	.rates = SUPPORTED_RATES,
2827 	.maxbps = SUPPORTED_MAXBPS,
2828 	.formats = SUPPORTED_FORMATS,
2829 	.ops = {
2830 		.open = simple_playback_pcm_open,
2831 		.close = nvhdmi_8ch_7x_pcm_close,
2832 		.prepare = nvhdmi_8ch_7x_pcm_prepare
2833 	},
2834 };
2835 
2836 static int patch_nvhdmi_2ch(struct hda_codec *codec)
2837 {
2838 	struct hdmi_spec *spec;
2839 	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
2840 				    nvhdmi_master_pin_nid_7x);
2841 	if (err < 0)
2842 		return err;
2843 
2844 	codec->patch_ops.init = nvhdmi_7x_init_2ch;
2845 	/* override the PCM rates, etc, as the codec doesn't give full list */
2846 	spec = codec->spec;
2847 	spec->pcm_playback.rates = SUPPORTED_RATES;
2848 	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
2849 	spec->pcm_playback.formats = SUPPORTED_FORMATS;
2850 	return 0;
2851 }
2852 
2853 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
2854 {
2855 	struct hdmi_spec *spec = codec->spec;
2856 	int err = simple_playback_build_pcms(codec);
2857 	if (!err) {
2858 		struct hda_pcm *info = get_pcm_rec(spec, 0);
2859 		info->own_chmap = true;
2860 	}
2861 	return err;
2862 }
2863 
2864 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
2865 {
2866 	struct hdmi_spec *spec = codec->spec;
2867 	struct hda_pcm *info;
2868 	struct snd_pcm_chmap *chmap;
2869 	int err;
2870 
2871 	err = simple_playback_build_controls(codec);
2872 	if (err < 0)
2873 		return err;
2874 
2875 	/* add channel maps */
2876 	info = get_pcm_rec(spec, 0);
2877 	err = snd_pcm_add_chmap_ctls(info->pcm,
2878 				     SNDRV_PCM_STREAM_PLAYBACK,
2879 				     snd_pcm_alt_chmaps, 8, 0, &chmap);
2880 	if (err < 0)
2881 		return err;
2882 	switch (codec->preset->id) {
2883 	case 0x10de0002:
2884 	case 0x10de0003:
2885 	case 0x10de0005:
2886 	case 0x10de0006:
2887 		chmap->channel_mask = (1U << 2) | (1U << 8);
2888 		break;
2889 	case 0x10de0007:
2890 		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
2891 	}
2892 	return 0;
2893 }
2894 
2895 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
2896 {
2897 	struct hdmi_spec *spec;
2898 	int err = patch_nvhdmi_2ch(codec);
2899 	if (err < 0)
2900 		return err;
2901 	spec = codec->spec;
2902 	spec->multiout.max_channels = 8;
2903 	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
2904 	codec->patch_ops.init = nvhdmi_7x_init_8ch;
2905 	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
2906 	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
2907 
2908 	/* Initialize the audio infoframe channel mask and checksum to something
2909 	 * valid */
2910 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2911 
2912 	return 0;
2913 }
2914 
2915 /*
2916  * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on:
2917  * - 0x10de0015
2918  * - 0x10de0040
2919  */
2920 static int nvhdmi_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
2921 						    int channels)
2922 {
2923 	if (cap->ca_index == 0x00 && channels == 2)
2924 		return SNDRV_CTL_TLVT_CHMAP_FIXED;
2925 
2926 	return hdmi_chmap_cea_alloc_validate_get_type(cap, channels);
2927 }
2928 
2929 static int nvhdmi_chmap_validate(int ca, int chs, unsigned char *map)
2930 {
2931 	if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR))
2932 		return -EINVAL;
2933 
2934 	return 0;
2935 }
2936 
2937 static int patch_nvhdmi(struct hda_codec *codec)
2938 {
2939 	struct hdmi_spec *spec;
2940 	int err;
2941 
2942 	err = patch_generic_hdmi(codec);
2943 	if (err)
2944 		return err;
2945 
2946 	spec = codec->spec;
2947 	spec->dyn_pin_out = true;
2948 
2949 	spec->ops.chmap_cea_alloc_validate_get_type =
2950 		nvhdmi_chmap_cea_alloc_validate_get_type;
2951 	spec->ops.chmap_validate = nvhdmi_chmap_validate;
2952 
2953 	return 0;
2954 }
2955 
2956 /*
2957  * The HDA codec on NVIDIA Tegra contains two scratch registers that are
2958  * accessed using vendor-defined verbs. These registers can be used for
2959  * interoperability between the HDA and HDMI drivers.
2960  */
2961 
2962 /* Audio Function Group node */
2963 #define NVIDIA_AFG_NID 0x01
2964 
2965 /*
2966  * The SCRATCH0 register is used to notify the HDMI codec of changes in audio
2967  * format. On Tegra, bit 31 is used as a trigger that causes an interrupt to
2968  * be raised in the HDMI codec. The remainder of the bits is arbitrary. This
2969  * implementation stores the HDA format (see AC_FMT_*) in bits [15:0] and an
2970  * additional bit (at position 30) to signal the validity of the format.
2971  *
2972  * | 31      | 30    | 29  16 | 15   0 |
2973  * +---------+-------+--------+--------+
2974  * | TRIGGER | VALID | UNUSED | FORMAT |
2975  * +-----------------------------------|
2976  *
2977  * Note that for the trigger bit to take effect it needs to change value
2978  * (i.e. it needs to be toggled).
2979  */
2980 #define NVIDIA_GET_SCRATCH0		0xfa6
2981 #define NVIDIA_SET_SCRATCH0_BYTE0	0xfa7
2982 #define NVIDIA_SET_SCRATCH0_BYTE1	0xfa8
2983 #define NVIDIA_SET_SCRATCH0_BYTE2	0xfa9
2984 #define NVIDIA_SET_SCRATCH0_BYTE3	0xfaa
2985 #define NVIDIA_SCRATCH_TRIGGER (1 << 7)
2986 #define NVIDIA_SCRATCH_VALID   (1 << 6)
2987 
2988 #define NVIDIA_GET_SCRATCH1		0xfab
2989 #define NVIDIA_SET_SCRATCH1_BYTE0	0xfac
2990 #define NVIDIA_SET_SCRATCH1_BYTE1	0xfad
2991 #define NVIDIA_SET_SCRATCH1_BYTE2	0xfae
2992 #define NVIDIA_SET_SCRATCH1_BYTE3	0xfaf
2993 
2994 /*
2995  * The format parameter is the HDA audio format (see AC_FMT_*). If set to 0,
2996  * the format is invalidated so that the HDMI codec can be disabled.
2997  */
2998 static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
2999 {
3000 	unsigned int value;
3001 
3002 	/* bits [31:30] contain the trigger and valid bits */
3003 	value = snd_hda_codec_read(codec, NVIDIA_AFG_NID, 0,
3004 				   NVIDIA_GET_SCRATCH0, 0);
3005 	value = (value >> 24) & 0xff;
3006 
3007 	/* bits [15:0] are used to store the HDA format */
3008 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3009 			    NVIDIA_SET_SCRATCH0_BYTE0,
3010 			    (format >> 0) & 0xff);
3011 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3012 			    NVIDIA_SET_SCRATCH0_BYTE1,
3013 			    (format >> 8) & 0xff);
3014 
3015 	/* bits [16:24] are unused */
3016 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3017 			    NVIDIA_SET_SCRATCH0_BYTE2, 0);
3018 
3019 	/*
3020 	 * Bit 30 signals that the data is valid and hence that HDMI audio can
3021 	 * be enabled.
3022 	 */
3023 	if (format == 0)
3024 		value &= ~NVIDIA_SCRATCH_VALID;
3025 	else
3026 		value |= NVIDIA_SCRATCH_VALID;
3027 
3028 	/*
3029 	 * Whenever the trigger bit is toggled, an interrupt is raised in the
3030 	 * HDMI codec. The HDMI driver will use that as trigger to update its
3031 	 * configuration.
3032 	 */
3033 	value ^= NVIDIA_SCRATCH_TRIGGER;
3034 
3035 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3036 			    NVIDIA_SET_SCRATCH0_BYTE3, value);
3037 }
3038 
3039 static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
3040 				  struct hda_codec *codec,
3041 				  unsigned int stream_tag,
3042 				  unsigned int format,
3043 				  struct snd_pcm_substream *substream)
3044 {
3045 	int err;
3046 
3047 	err = generic_hdmi_playback_pcm_prepare(hinfo, codec, stream_tag,
3048 						format, substream);
3049 	if (err < 0)
3050 		return err;
3051 
3052 	/* notify the HDMI codec of the format change */
3053 	tegra_hdmi_set_format(codec, format);
3054 
3055 	return 0;
3056 }
3057 
3058 static int tegra_hdmi_pcm_cleanup(struct hda_pcm_stream *hinfo,
3059 				  struct hda_codec *codec,
3060 				  struct snd_pcm_substream *substream)
3061 {
3062 	/* invalidate the format in the HDMI codec */
3063 	tegra_hdmi_set_format(codec, 0);
3064 
3065 	return generic_hdmi_playback_pcm_cleanup(hinfo, codec, substream);
3066 }
3067 
3068 static struct hda_pcm *hda_find_pcm_by_type(struct hda_codec *codec, int type)
3069 {
3070 	struct hdmi_spec *spec = codec->spec;
3071 	unsigned int i;
3072 
3073 	for (i = 0; i < spec->num_pins; i++) {
3074 		struct hda_pcm *pcm = get_pcm_rec(spec, i);
3075 
3076 		if (pcm->pcm_type == type)
3077 			return pcm;
3078 	}
3079 
3080 	return NULL;
3081 }
3082 
3083 static int tegra_hdmi_build_pcms(struct hda_codec *codec)
3084 {
3085 	struct hda_pcm_stream *stream;
3086 	struct hda_pcm *pcm;
3087 	int err;
3088 
3089 	err = generic_hdmi_build_pcms(codec);
3090 	if (err < 0)
3091 		return err;
3092 
3093 	pcm = hda_find_pcm_by_type(codec, HDA_PCM_TYPE_HDMI);
3094 	if (!pcm)
3095 		return -ENODEV;
3096 
3097 	/*
3098 	 * Override ->prepare() and ->cleanup() operations to notify the HDMI
3099 	 * codec about format changes.
3100 	 */
3101 	stream = &pcm->stream[SNDRV_PCM_STREAM_PLAYBACK];
3102 	stream->ops.prepare = tegra_hdmi_pcm_prepare;
3103 	stream->ops.cleanup = tegra_hdmi_pcm_cleanup;
3104 
3105 	return 0;
3106 }
3107 
3108 static int patch_tegra_hdmi(struct hda_codec *codec)
3109 {
3110 	int err;
3111 
3112 	err = patch_generic_hdmi(codec);
3113 	if (err)
3114 		return err;
3115 
3116 	codec->patch_ops.build_pcms = tegra_hdmi_build_pcms;
3117 
3118 	return 0;
3119 }
3120 
3121 /*
3122  * ATI/AMD-specific implementations
3123  */
3124 
3125 #define is_amdhdmi_rev3_or_later(codec) \
3126 	((codec)->core.vendor_id == 0x1002aa01 && \
3127 	 ((codec)->core.revision_id & 0xff00) >= 0x0300)
3128 #define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)
3129 
3130 /* ATI/AMD specific HDA pin verbs, see the AMD HDA Verbs specification */
3131 #define ATI_VERB_SET_CHANNEL_ALLOCATION	0x771
3132 #define ATI_VERB_SET_DOWNMIX_INFO	0x772
3133 #define ATI_VERB_SET_MULTICHANNEL_01	0x777
3134 #define ATI_VERB_SET_MULTICHANNEL_23	0x778
3135 #define ATI_VERB_SET_MULTICHANNEL_45	0x779
3136 #define ATI_VERB_SET_MULTICHANNEL_67	0x77a
3137 #define ATI_VERB_SET_HBR_CONTROL	0x77c
3138 #define ATI_VERB_SET_MULTICHANNEL_1	0x785
3139 #define ATI_VERB_SET_MULTICHANNEL_3	0x786
3140 #define ATI_VERB_SET_MULTICHANNEL_5	0x787
3141 #define ATI_VERB_SET_MULTICHANNEL_7	0x788
3142 #define ATI_VERB_SET_MULTICHANNEL_MODE	0x789
3143 #define ATI_VERB_GET_CHANNEL_ALLOCATION	0xf71
3144 #define ATI_VERB_GET_DOWNMIX_INFO	0xf72
3145 #define ATI_VERB_GET_MULTICHANNEL_01	0xf77
3146 #define ATI_VERB_GET_MULTICHANNEL_23	0xf78
3147 #define ATI_VERB_GET_MULTICHANNEL_45	0xf79
3148 #define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
3149 #define ATI_VERB_GET_HBR_CONTROL	0xf7c
3150 #define ATI_VERB_GET_MULTICHANNEL_1	0xf85
3151 #define ATI_VERB_GET_MULTICHANNEL_3	0xf86
3152 #define ATI_VERB_GET_MULTICHANNEL_5	0xf87
3153 #define ATI_VERB_GET_MULTICHANNEL_7	0xf88
3154 #define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
3155 
3156 /* AMD specific HDA cvt verbs */
3157 #define ATI_VERB_SET_RAMP_RATE		0x770
3158 #define ATI_VERB_GET_RAMP_RATE		0xf70
3159 
3160 #define ATI_OUT_ENABLE 0x1
3161 
3162 #define ATI_MULTICHANNEL_MODE_PAIRED	0
3163 #define ATI_MULTICHANNEL_MODE_SINGLE	1
3164 
3165 #define ATI_HBR_CAPABLE 0x01
3166 #define ATI_HBR_ENABLE 0x10
3167 
3168 static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
3169 			   unsigned char *buf, int *eld_size)
3170 {
3171 	/* call hda_eld.c ATI/AMD-specific function */
3172 	return snd_hdmi_get_eld_ati(codec, nid, buf, eld_size,
3173 				    is_amdhdmi_rev3_or_later(codec));
3174 }
3175 
3176 static void atihdmi_pin_setup_infoframe(struct hda_codec *codec, hda_nid_t pin_nid, int ca,
3177 					int active_channels, int conn_type)
3178 {
3179 	snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);
3180 }
3181 
3182 static int atihdmi_paired_swap_fc_lfe(int pos)
3183 {
3184 	/*
3185 	 * ATI/AMD have automatic FC/LFE swap built-in
3186 	 * when in pairwise mapping mode.
3187 	 */
3188 
3189 	switch (pos) {
3190 		/* see channel_allocations[].speakers[] */
3191 		case 2: return 3;
3192 		case 3: return 2;
3193 		default: break;
3194 	}
3195 
3196 	return pos;
3197 }
3198 
3199 static int atihdmi_paired_chmap_validate(int ca, int chs, unsigned char *map)
3200 {
3201 	struct cea_channel_speaker_allocation *cap;
3202 	int i, j;
3203 
3204 	/* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */
3205 
3206 	cap = &channel_allocations[get_channel_allocation_order(ca)];
3207 	for (i = 0; i < chs; ++i) {
3208 		int mask = to_spk_mask(map[i]);
3209 		bool ok = false;
3210 		bool companion_ok = false;
3211 
3212 		if (!mask)
3213 			continue;
3214 
3215 		for (j = 0 + i % 2; j < 8; j += 2) {
3216 			int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);
3217 			if (cap->speakers[chan_idx] == mask) {
3218 				/* channel is in a supported position */
3219 				ok = true;
3220 
3221 				if (i % 2 == 0 && i + 1 < chs) {
3222 					/* even channel, check the odd companion */
3223 					int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);
3224 					int comp_mask_req = to_spk_mask(map[i+1]);
3225 					int comp_mask_act = cap->speakers[comp_chan_idx];
3226 
3227 					if (comp_mask_req == comp_mask_act)
3228 						companion_ok = true;
3229 					else
3230 						return -EINVAL;
3231 				}
3232 				break;
3233 			}
3234 		}
3235 
3236 		if (!ok)
3237 			return -EINVAL;
3238 
3239 		if (companion_ok)
3240 			i++; /* companion channel already checked */
3241 	}
3242 
3243 	return 0;
3244 }
3245 
3246 static int atihdmi_pin_set_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
3247 					int hdmi_slot, int stream_channel)
3248 {
3249 	int verb;
3250 	int ati_channel_setup = 0;
3251 
3252 	if (hdmi_slot > 7)
3253 		return -EINVAL;
3254 
3255 	if (!has_amd_full_remap_support(codec)) {
3256 		hdmi_slot = atihdmi_paired_swap_fc_lfe(hdmi_slot);
3257 
3258 		/* In case this is an odd slot but without stream channel, do not
3259 		 * disable the slot since the corresponding even slot could have a
3260 		 * channel. In case neither have a channel, the slot pair will be
3261 		 * disabled when this function is called for the even slot. */
3262 		if (hdmi_slot % 2 != 0 && stream_channel == 0xf)
3263 			return 0;
3264 
3265 		hdmi_slot -= hdmi_slot % 2;
3266 
3267 		if (stream_channel != 0xf)
3268 			stream_channel -= stream_channel % 2;
3269 	}
3270 
3271 	verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;
3272 
3273 	/* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */
3274 
3275 	if (stream_channel != 0xf)
3276 		ati_channel_setup = (stream_channel << 4) | ATI_OUT_ENABLE;
3277 
3278 	return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);
3279 }
3280 
3281 static int atihdmi_pin_get_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
3282 					int asp_slot)
3283 {
3284 	bool was_odd = false;
3285 	int ati_asp_slot = asp_slot;
3286 	int verb;
3287 	int ati_channel_setup;
3288 
3289 	if (asp_slot > 7)
3290 		return -EINVAL;
3291 
3292 	if (!has_amd_full_remap_support(codec)) {
3293 		ati_asp_slot = atihdmi_paired_swap_fc_lfe(asp_slot);
3294 		if (ati_asp_slot % 2 != 0) {
3295 			ati_asp_slot -= 1;
3296 			was_odd = true;
3297 		}
3298 	}
3299 
3300 	verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;
3301 
3302 	ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);
3303 
3304 	if (!(ati_channel_setup & ATI_OUT_ENABLE))
3305 		return 0xf;
3306 
3307 	return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;
3308 }
3309 
3310 static int atihdmi_paired_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
3311 							    int channels)
3312 {
3313 	int c;
3314 
3315 	/*
3316 	 * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so
3317 	 * we need to take that into account (a single channel may take 2
3318 	 * channel slots if we need to carry a silent channel next to it).
3319 	 * On Rev3+ AMD codecs this function is not used.
3320 	 */
3321 	int chanpairs = 0;
3322 
3323 	/* We only produce even-numbered channel count TLVs */
3324 	if ((channels % 2) != 0)
3325 		return -1;
3326 
3327 	for (c = 0; c < 7; c += 2) {
3328 		if (cap->speakers[c] || cap->speakers[c+1])
3329 			chanpairs++;
3330 	}
3331 
3332 	if (chanpairs * 2 != channels)
3333 		return -1;
3334 
3335 	return SNDRV_CTL_TLVT_CHMAP_PAIRED;
3336 }
3337 
3338 static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct cea_channel_speaker_allocation *cap,
3339 						  unsigned int *chmap, int channels)
3340 {
3341 	/* produce paired maps for pre-rev3 ATI/AMD codecs */
3342 	int count = 0;
3343 	int c;
3344 
3345 	for (c = 7; c >= 0; c--) {
3346 		int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);
3347 		int spk = cap->speakers[chan];
3348 		if (!spk) {
3349 			/* add N/A channel if the companion channel is occupied */
3350 			if (cap->speakers[chan + (chan % 2 ? -1 : 1)])
3351 				chmap[count++] = SNDRV_CHMAP_NA;
3352 
3353 			continue;
3354 		}
3355 
3356 		chmap[count++] = spk_to_chmap(spk);
3357 	}
3358 
3359 	WARN_ON(count != channels);
3360 }
3361 
3362 static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
3363 				 bool hbr)
3364 {
3365 	int hbr_ctl, hbr_ctl_new;
3366 
3367 	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
3368 	if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {
3369 		if (hbr)
3370 			hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
3371 		else
3372 			hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
3373 
3374 		codec_dbg(codec,
3375 			  "atihdmi_pin_hbr_setup: NID=0x%x, %shbr-ctl=0x%x\n",
3376 				pin_nid,
3377 				hbr_ctl == hbr_ctl_new ? "" : "new-",
3378 				hbr_ctl_new);
3379 
3380 		if (hbr_ctl != hbr_ctl_new)
3381 			snd_hda_codec_write(codec, pin_nid, 0,
3382 						ATI_VERB_SET_HBR_CONTROL,
3383 						hbr_ctl_new);
3384 
3385 	} else if (hbr)
3386 		return -EINVAL;
3387 
3388 	return 0;
3389 }
3390 
3391 static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
3392 				hda_nid_t pin_nid, u32 stream_tag, int format)
3393 {
3394 
3395 	if (is_amdhdmi_rev3_or_later(codec)) {
3396 		int ramp_rate = 180; /* default as per AMD spec */
3397 		/* disable ramp-up/down for non-pcm as per AMD spec */
3398 		if (format & AC_FMT_TYPE_NON_PCM)
3399 			ramp_rate = 0;
3400 
3401 		snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);
3402 	}
3403 
3404 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
3405 }
3406 
3407 
3408 static int atihdmi_init(struct hda_codec *codec)
3409 {
3410 	struct hdmi_spec *spec = codec->spec;
3411 	int pin_idx, err;
3412 
3413 	err = generic_hdmi_init(codec);
3414 
3415 	if (err)
3416 		return err;
3417 
3418 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
3419 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
3420 
3421 		/* make sure downmix information in infoframe is zero */
3422 		snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);
3423 
3424 		/* enable channel-wise remap mode if supported */
3425 		if (has_amd_full_remap_support(codec))
3426 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
3427 					    ATI_VERB_SET_MULTICHANNEL_MODE,
3428 					    ATI_MULTICHANNEL_MODE_SINGLE);
3429 	}
3430 
3431 	return 0;
3432 }
3433 
3434 static int patch_atihdmi(struct hda_codec *codec)
3435 {
3436 	struct hdmi_spec *spec;
3437 	struct hdmi_spec_per_cvt *per_cvt;
3438 	int err, cvt_idx;
3439 
3440 	err = patch_generic_hdmi(codec);
3441 
3442 	if (err)
3443 		return err;
3444 
3445 	codec->patch_ops.init = atihdmi_init;
3446 
3447 	spec = codec->spec;
3448 
3449 	spec->ops.pin_get_eld = atihdmi_pin_get_eld;
3450 	spec->ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
3451 	spec->ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
3452 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
3453 	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
3454 	spec->ops.setup_stream = atihdmi_setup_stream;
3455 
3456 	if (!has_amd_full_remap_support(codec)) {
3457 		/* override to ATI/AMD-specific versions with pairwise mapping */
3458 		spec->ops.chmap_cea_alloc_validate_get_type =
3459 			atihdmi_paired_chmap_cea_alloc_validate_get_type;
3460 		spec->ops.cea_alloc_to_tlv_chmap = atihdmi_paired_cea_alloc_to_tlv_chmap;
3461 		spec->ops.chmap_validate = atihdmi_paired_chmap_validate;
3462 	}
3463 
3464 	/* ATI/AMD converters do not advertise all of their capabilities */
3465 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
3466 		per_cvt = get_cvt(spec, cvt_idx);
3467 		per_cvt->channels_max = max(per_cvt->channels_max, 8u);
3468 		per_cvt->rates |= SUPPORTED_RATES;
3469 		per_cvt->formats |= SUPPORTED_FORMATS;
3470 		per_cvt->maxbps = max(per_cvt->maxbps, 24u);
3471 	}
3472 
3473 	spec->channels_max = max(spec->channels_max, 8u);
3474 
3475 	return 0;
3476 }
3477 
3478 /* VIA HDMI Implementation */
3479 #define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
3480 #define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
3481 
3482 static int patch_via_hdmi(struct hda_codec *codec)
3483 {
3484 	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
3485 }
3486 
3487 /*
3488  * patch entries
3489  */
3490 static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
3491 { .id = 0x1002793c, .name = "RS600 HDMI",	.patch = patch_atihdmi },
3492 { .id = 0x10027919, .name = "RS600 HDMI",	.patch = patch_atihdmi },
3493 { .id = 0x1002791a, .name = "RS690/780 HDMI",	.patch = patch_atihdmi },
3494 { .id = 0x1002aa01, .name = "R6xx HDMI",	.patch = patch_atihdmi },
3495 { .id = 0x10951390, .name = "SiI1390 HDMI",	.patch = patch_generic_hdmi },
3496 { .id = 0x10951392, .name = "SiI1392 HDMI",	.patch = patch_generic_hdmi },
3497 { .id = 0x17e80047, .name = "Chrontel HDMI",	.patch = patch_generic_hdmi },
3498 { .id = 0x10de0002, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
3499 { .id = 0x10de0003, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
3500 { .id = 0x10de0005, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
3501 { .id = 0x10de0006, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
3502 { .id = 0x10de0007, .name = "MCP79/7A HDMI",	.patch = patch_nvhdmi_8ch_7x },
3503 { .id = 0x10de000a, .name = "GPU 0a HDMI/DP",	.patch = patch_nvhdmi },
3504 { .id = 0x10de000b, .name = "GPU 0b HDMI/DP",	.patch = patch_nvhdmi },
3505 { .id = 0x10de000c, .name = "MCP89 HDMI",	.patch = patch_nvhdmi },
3506 { .id = 0x10de000d, .name = "GPU 0d HDMI/DP",	.patch = patch_nvhdmi },
3507 { .id = 0x10de0010, .name = "GPU 10 HDMI/DP",	.patch = patch_nvhdmi },
3508 { .id = 0x10de0011, .name = "GPU 11 HDMI/DP",	.patch = patch_nvhdmi },
3509 { .id = 0x10de0012, .name = "GPU 12 HDMI/DP",	.patch = patch_nvhdmi },
3510 { .id = 0x10de0013, .name = "GPU 13 HDMI/DP",	.patch = patch_nvhdmi },
3511 { .id = 0x10de0014, .name = "GPU 14 HDMI/DP",	.patch = patch_nvhdmi },
3512 { .id = 0x10de0015, .name = "GPU 15 HDMI/DP",	.patch = patch_nvhdmi },
3513 { .id = 0x10de0016, .name = "GPU 16 HDMI/DP",	.patch = patch_nvhdmi },
3514 /* 17 is known to be absent */
3515 { .id = 0x10de0018, .name = "GPU 18 HDMI/DP",	.patch = patch_nvhdmi },
3516 { .id = 0x10de0019, .name = "GPU 19 HDMI/DP",	.patch = patch_nvhdmi },
3517 { .id = 0x10de001a, .name = "GPU 1a HDMI/DP",	.patch = patch_nvhdmi },
3518 { .id = 0x10de001b, .name = "GPU 1b HDMI/DP",	.patch = patch_nvhdmi },
3519 { .id = 0x10de001c, .name = "GPU 1c HDMI/DP",	.patch = patch_nvhdmi },
3520 { .id = 0x10de0020, .name = "Tegra30 HDMI",	.patch = patch_tegra_hdmi },
3521 { .id = 0x10de0022, .name = "Tegra114 HDMI",	.patch = patch_tegra_hdmi },
3522 { .id = 0x10de0028, .name = "Tegra124 HDMI",	.patch = patch_tegra_hdmi },
3523 { .id = 0x10de0029, .name = "Tegra210 HDMI/DP",	.patch = patch_tegra_hdmi },
3524 { .id = 0x10de0040, .name = "GPU 40 HDMI/DP",	.patch = patch_nvhdmi },
3525 { .id = 0x10de0041, .name = "GPU 41 HDMI/DP",	.patch = patch_nvhdmi },
3526 { .id = 0x10de0042, .name = "GPU 42 HDMI/DP",	.patch = patch_nvhdmi },
3527 { .id = 0x10de0043, .name = "GPU 43 HDMI/DP",	.patch = patch_nvhdmi },
3528 { .id = 0x10de0044, .name = "GPU 44 HDMI/DP",	.patch = patch_nvhdmi },
3529 { .id = 0x10de0051, .name = "GPU 51 HDMI/DP",	.patch = patch_nvhdmi },
3530 { .id = 0x10de0060, .name = "GPU 60 HDMI/DP",	.patch = patch_nvhdmi },
3531 { .id = 0x10de0067, .name = "MCP67 HDMI",	.patch = patch_nvhdmi_2ch },
3532 { .id = 0x10de0070, .name = "GPU 70 HDMI/DP",	.patch = patch_nvhdmi },
3533 { .id = 0x10de0071, .name = "GPU 71 HDMI/DP",	.patch = patch_nvhdmi },
3534 { .id = 0x10de0072, .name = "GPU 72 HDMI/DP",	.patch = patch_nvhdmi },
3535 { .id = 0x10de007d, .name = "GPU 7d HDMI/DP",	.patch = patch_nvhdmi },
3536 { .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
3537 { .id = 0x11069f80, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
3538 { .id = 0x11069f81, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
3539 { .id = 0x11069f84, .name = "VX11 HDMI/DP",	.patch = patch_generic_hdmi },
3540 { .id = 0x11069f85, .name = "VX11 HDMI/DP",	.patch = patch_generic_hdmi },
3541 { .id = 0x80860054, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
3542 { .id = 0x80862801, .name = "Bearlake HDMI",	.patch = patch_generic_hdmi },
3543 { .id = 0x80862802, .name = "Cantiga HDMI",	.patch = patch_generic_hdmi },
3544 { .id = 0x80862803, .name = "Eaglelake HDMI",	.patch = patch_generic_hdmi },
3545 { .id = 0x80862804, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
3546 { .id = 0x80862805, .name = "CougarPoint HDMI",	.patch = patch_generic_hdmi },
3547 { .id = 0x80862806, .name = "PantherPoint HDMI", .patch = patch_generic_hdmi },
3548 { .id = 0x80862807, .name = "Haswell HDMI",	.patch = patch_generic_hdmi },
3549 { .id = 0x80862808, .name = "Broadwell HDMI",	.patch = patch_generic_hdmi },
3550 { .id = 0x80862809, .name = "Skylake HDMI",	.patch = patch_generic_hdmi },
3551 { .id = 0x8086280a, .name = "Broxton HDMI",	.patch = patch_generic_hdmi },
3552 { .id = 0x80862880, .name = "CedarTrail HDMI",	.patch = patch_generic_hdmi },
3553 { .id = 0x80862882, .name = "Valleyview2 HDMI",	.patch = patch_generic_hdmi },
3554 { .id = 0x80862883, .name = "Braswell HDMI",	.patch = patch_generic_hdmi },
3555 { .id = 0x808629fb, .name = "Crestline HDMI",	.patch = patch_generic_hdmi },
3556 /* special ID for generic HDMI */
3557 { .id = HDA_CODEC_ID_GENERIC_HDMI, .patch = patch_generic_hdmi },
3558 {} /* terminator */
3559 };
3560 
3561 MODULE_ALIAS("snd-hda-codec-id:1002793c");
3562 MODULE_ALIAS("snd-hda-codec-id:10027919");
3563 MODULE_ALIAS("snd-hda-codec-id:1002791a");
3564 MODULE_ALIAS("snd-hda-codec-id:1002aa01");
3565 MODULE_ALIAS("snd-hda-codec-id:10951390");
3566 MODULE_ALIAS("snd-hda-codec-id:10951392");
3567 MODULE_ALIAS("snd-hda-codec-id:10de0002");
3568 MODULE_ALIAS("snd-hda-codec-id:10de0003");
3569 MODULE_ALIAS("snd-hda-codec-id:10de0005");
3570 MODULE_ALIAS("snd-hda-codec-id:10de0006");
3571 MODULE_ALIAS("snd-hda-codec-id:10de0007");
3572 MODULE_ALIAS("snd-hda-codec-id:10de000a");
3573 MODULE_ALIAS("snd-hda-codec-id:10de000b");
3574 MODULE_ALIAS("snd-hda-codec-id:10de000c");
3575 MODULE_ALIAS("snd-hda-codec-id:10de000d");
3576 MODULE_ALIAS("snd-hda-codec-id:10de0010");
3577 MODULE_ALIAS("snd-hda-codec-id:10de0011");
3578 MODULE_ALIAS("snd-hda-codec-id:10de0012");
3579 MODULE_ALIAS("snd-hda-codec-id:10de0013");
3580 MODULE_ALIAS("snd-hda-codec-id:10de0014");
3581 MODULE_ALIAS("snd-hda-codec-id:10de0015");
3582 MODULE_ALIAS("snd-hda-codec-id:10de0016");
3583 MODULE_ALIAS("snd-hda-codec-id:10de0018");
3584 MODULE_ALIAS("snd-hda-codec-id:10de0019");
3585 MODULE_ALIAS("snd-hda-codec-id:10de001a");
3586 MODULE_ALIAS("snd-hda-codec-id:10de001b");
3587 MODULE_ALIAS("snd-hda-codec-id:10de001c");
3588 MODULE_ALIAS("snd-hda-codec-id:10de0028");
3589 MODULE_ALIAS("snd-hda-codec-id:10de0040");
3590 MODULE_ALIAS("snd-hda-codec-id:10de0041");
3591 MODULE_ALIAS("snd-hda-codec-id:10de0042");
3592 MODULE_ALIAS("snd-hda-codec-id:10de0043");
3593 MODULE_ALIAS("snd-hda-codec-id:10de0044");
3594 MODULE_ALIAS("snd-hda-codec-id:10de0051");
3595 MODULE_ALIAS("snd-hda-codec-id:10de0060");
3596 MODULE_ALIAS("snd-hda-codec-id:10de0067");
3597 MODULE_ALIAS("snd-hda-codec-id:10de0070");
3598 MODULE_ALIAS("snd-hda-codec-id:10de0071");
3599 MODULE_ALIAS("snd-hda-codec-id:10de0072");
3600 MODULE_ALIAS("snd-hda-codec-id:10de007d");
3601 MODULE_ALIAS("snd-hda-codec-id:10de8001");
3602 MODULE_ALIAS("snd-hda-codec-id:11069f80");
3603 MODULE_ALIAS("snd-hda-codec-id:11069f81");
3604 MODULE_ALIAS("snd-hda-codec-id:11069f84");
3605 MODULE_ALIAS("snd-hda-codec-id:11069f85");
3606 MODULE_ALIAS("snd-hda-codec-id:17e80047");
3607 MODULE_ALIAS("snd-hda-codec-id:80860054");
3608 MODULE_ALIAS("snd-hda-codec-id:80862801");
3609 MODULE_ALIAS("snd-hda-codec-id:80862802");
3610 MODULE_ALIAS("snd-hda-codec-id:80862803");
3611 MODULE_ALIAS("snd-hda-codec-id:80862804");
3612 MODULE_ALIAS("snd-hda-codec-id:80862805");
3613 MODULE_ALIAS("snd-hda-codec-id:80862806");
3614 MODULE_ALIAS("snd-hda-codec-id:80862807");
3615 MODULE_ALIAS("snd-hda-codec-id:80862808");
3616 MODULE_ALIAS("snd-hda-codec-id:80862809");
3617 MODULE_ALIAS("snd-hda-codec-id:8086280a");
3618 MODULE_ALIAS("snd-hda-codec-id:80862880");
3619 MODULE_ALIAS("snd-hda-codec-id:80862882");
3620 MODULE_ALIAS("snd-hda-codec-id:80862883");
3621 MODULE_ALIAS("snd-hda-codec-id:808629fb");
3622 
3623 MODULE_LICENSE("GPL");
3624 MODULE_DESCRIPTION("HDMI HD-audio codec");
3625 MODULE_ALIAS("snd-hda-codec-intelhdmi");
3626 MODULE_ALIAS("snd-hda-codec-nvhdmi");
3627 MODULE_ALIAS("snd-hda-codec-atihdmi");
3628 
3629 static struct hda_codec_driver hdmi_driver = {
3630 	.preset = snd_hda_preset_hdmi,
3631 };
3632 
3633 module_hda_codec_driver(hdmi_driver);
3634