xref: /linux/sound/pci/hda/patch_hdmi.c (revision a4cdb556cae05cd3e7b602b3a44c01420c4e2258)
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_broxton(codec) ((codec)->core.vendor_id == 0x8086280a)
54 #define is_haswell_plus(codec) (is_haswell(codec) || is_broadwell(codec) \
55 				|| is_skylake(codec) || is_broxton(codec))
56 
57 #define is_valleyview(codec) ((codec)->core.vendor_id == 0x80862882)
58 #define is_cherryview(codec) ((codec)->core.vendor_id == 0x80862883)
59 #define is_valleyview_plus(codec) (is_valleyview(codec) || is_cherryview(codec))
60 
61 struct hdmi_spec_per_cvt {
62 	hda_nid_t cvt_nid;
63 	int assigned;
64 	unsigned int channels_min;
65 	unsigned int channels_max;
66 	u32 rates;
67 	u64 formats;
68 	unsigned int maxbps;
69 };
70 
71 /* max. connections to a widget */
72 #define HDA_MAX_CONNECTIONS	32
73 
74 struct hdmi_spec_per_pin {
75 	hda_nid_t pin_nid;
76 	int num_mux_nids;
77 	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
78 	int mux_idx;
79 	hda_nid_t cvt_nid;
80 
81 	struct hda_codec *codec;
82 	struct hdmi_eld sink_eld;
83 	struct mutex lock;
84 	struct delayed_work work;
85 	struct snd_kcontrol *eld_ctl;
86 	int repoll_count;
87 	bool setup; /* the stream has been set up by prepare callback */
88 	int channels; /* current number of channels */
89 	bool non_pcm;
90 	bool chmap_set;		/* channel-map override by ALSA API? */
91 	unsigned char chmap[8]; /* ALSA API channel-map */
92 #ifdef CONFIG_SND_PROC_FS
93 	struct snd_info_entry *proc_entry;
94 #endif
95 };
96 
97 struct cea_channel_speaker_allocation;
98 
99 /* operations used by generic code that can be overridden by patches */
100 struct hdmi_ops {
101 	int (*pin_get_eld)(struct hda_codec *codec, hda_nid_t pin_nid,
102 			   unsigned char *buf, int *eld_size);
103 
104 	/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */
105 	int (*pin_get_slot_channel)(struct hda_codec *codec, hda_nid_t pin_nid,
106 				    int asp_slot);
107 	int (*pin_set_slot_channel)(struct hda_codec *codec, hda_nid_t pin_nid,
108 				    int asp_slot, int channel);
109 
110 	void (*pin_setup_infoframe)(struct hda_codec *codec, hda_nid_t pin_nid,
111 				    int ca, int active_channels, int conn_type);
112 
113 	/* enable/disable HBR (HD passthrough) */
114 	int (*pin_hbr_setup)(struct hda_codec *codec, hda_nid_t pin_nid, bool hbr);
115 
116 	int (*setup_stream)(struct hda_codec *codec, hda_nid_t cvt_nid,
117 			    hda_nid_t pin_nid, u32 stream_tag, int format);
118 
119 	/* Helpers for producing the channel map TLVs. These can be overridden
120 	 * for devices that have non-standard mapping requirements. */
121 	int (*chmap_cea_alloc_validate_get_type)(struct cea_channel_speaker_allocation *cap,
122 						 int channels);
123 	void (*cea_alloc_to_tlv_chmap)(struct cea_channel_speaker_allocation *cap,
124 				       unsigned int *chmap, int channels);
125 
126 	/* check that the user-given chmap is supported */
127 	int (*chmap_validate)(int ca, int channels, unsigned char *chmap);
128 };
129 
130 struct hdmi_spec {
131 	int num_cvts;
132 	struct snd_array cvts; /* struct hdmi_spec_per_cvt */
133 	hda_nid_t cvt_nids[4]; /* only for haswell fix */
134 
135 	int num_pins;
136 	struct snd_array pins; /* struct hdmi_spec_per_pin */
137 	struct hda_pcm *pcm_rec[16];
138 	unsigned int channels_max; /* max over all cvts */
139 
140 	struct hdmi_eld temp_eld;
141 	struct hdmi_ops ops;
142 
143 	bool dyn_pin_out;
144 
145 	/*
146 	 * Non-generic VIA/NVIDIA specific
147 	 */
148 	struct hda_multi_out multiout;
149 	struct hda_pcm_stream pcm_playback;
150 
151 	/* i915/powerwell (Haswell+/Valleyview+) specific */
152 	struct i915_audio_component_audio_ops i915_audio_ops;
153 };
154 
155 
156 struct hdmi_audio_infoframe {
157 	u8 type; /* 0x84 */
158 	u8 ver;  /* 0x01 */
159 	u8 len;  /* 0x0a */
160 
161 	u8 checksum;
162 
163 	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
164 	u8 SS01_SF24;
165 	u8 CXT04;
166 	u8 CA;
167 	u8 LFEPBL01_LSV36_DM_INH7;
168 };
169 
170 struct dp_audio_infoframe {
171 	u8 type; /* 0x84 */
172 	u8 len;  /* 0x1b */
173 	u8 ver;  /* 0x11 << 2 */
174 
175 	u8 CC02_CT47;	/* match with HDMI infoframe from this on */
176 	u8 SS01_SF24;
177 	u8 CXT04;
178 	u8 CA;
179 	u8 LFEPBL01_LSV36_DM_INH7;
180 };
181 
182 union audio_infoframe {
183 	struct hdmi_audio_infoframe hdmi;
184 	struct dp_audio_infoframe dp;
185 	u8 bytes[0];
186 };
187 
188 /*
189  * CEA speaker placement:
190  *
191  *        FLH       FCH        FRH
192  *  FLW    FL  FLC   FC   FRC   FR   FRW
193  *
194  *                                  LFE
195  *                     TC
196  *
197  *          RL  RLC   RC   RRC   RR
198  *
199  * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
200  * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
201  */
202 enum cea_speaker_placement {
203 	FL  = (1 <<  0),	/* Front Left           */
204 	FC  = (1 <<  1),	/* Front Center         */
205 	FR  = (1 <<  2),	/* Front Right          */
206 	FLC = (1 <<  3),	/* Front Left Center    */
207 	FRC = (1 <<  4),	/* Front Right Center   */
208 	RL  = (1 <<  5),	/* Rear Left            */
209 	RC  = (1 <<  6),	/* Rear Center          */
210 	RR  = (1 <<  7),	/* Rear Right           */
211 	RLC = (1 <<  8),	/* Rear Left Center     */
212 	RRC = (1 <<  9),	/* Rear Right Center    */
213 	LFE = (1 << 10),	/* Low Frequency Effect */
214 	FLW = (1 << 11),	/* Front Left Wide      */
215 	FRW = (1 << 12),	/* Front Right Wide     */
216 	FLH = (1 << 13),	/* Front Left High      */
217 	FCH = (1 << 14),	/* Front Center High    */
218 	FRH = (1 << 15),	/* Front Right High     */
219 	TC  = (1 << 16),	/* Top Center           */
220 };
221 
222 /*
223  * ELD SA bits in the CEA Speaker Allocation data block
224  */
225 static int eld_speaker_allocation_bits[] = {
226 	[0] = FL | FR,
227 	[1] = LFE,
228 	[2] = FC,
229 	[3] = RL | RR,
230 	[4] = RC,
231 	[5] = FLC | FRC,
232 	[6] = RLC | RRC,
233 	/* the following are not defined in ELD yet */
234 	[7] = FLW | FRW,
235 	[8] = FLH | FRH,
236 	[9] = TC,
237 	[10] = FCH,
238 };
239 
240 struct cea_channel_speaker_allocation {
241 	int ca_index;
242 	int speakers[8];
243 
244 	/* derived values, just for convenience */
245 	int channels;
246 	int spk_mask;
247 };
248 
249 /*
250  * ALSA sequence is:
251  *
252  *       surround40   surround41   surround50   surround51   surround71
253  * ch0   front left   =            =            =            =
254  * ch1   front right  =            =            =            =
255  * ch2   rear left    =            =            =            =
256  * ch3   rear right   =            =            =            =
257  * ch4                LFE          center       center       center
258  * ch5                                          LFE          LFE
259  * ch6                                                       side left
260  * ch7                                                       side right
261  *
262  * surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR}
263  */
264 static int hdmi_channel_mapping[0x32][8] = {
265 	/* stereo */
266 	[0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
267 	/* 2.1 */
268 	[0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
269 	/* Dolby Surround */
270 	[0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 },
271 	/* surround40 */
272 	[0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 },
273 	/* 4ch */
274 	[0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 },
275 	/* surround41 */
276 	[0x09] = { 0x00, 0x11, 0x24, 0x35, 0x42, 0xf3, 0xf6, 0xf7 },
277 	/* surround50 */
278 	[0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 },
279 	/* surround51 */
280 	[0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 },
281 	/* 7.1 */
282 	[0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 },
283 };
284 
285 /*
286  * This is an ordered list!
287  *
288  * The preceding ones have better chances to be selected by
289  * hdmi_channel_allocation().
290  */
291 static struct cea_channel_speaker_allocation channel_allocations[] = {
292 /*			  channel:   7     6    5    4    3     2    1    0  */
293 { .ca_index = 0x00,  .speakers = {   0,    0,   0,   0,   0,    0,  FR,  FL } },
294 				 /* 2.1 */
295 { .ca_index = 0x01,  .speakers = {   0,    0,   0,   0,   0,  LFE,  FR,  FL } },
296 				 /* Dolby Surround */
297 { .ca_index = 0x02,  .speakers = {   0,    0,   0,   0,  FC,    0,  FR,  FL } },
298 				 /* surround40 */
299 { .ca_index = 0x08,  .speakers = {   0,    0,  RR,  RL,   0,    0,  FR,  FL } },
300 				 /* surround41 */
301 { .ca_index = 0x09,  .speakers = {   0,    0,  RR,  RL,   0,  LFE,  FR,  FL } },
302 				 /* surround50 */
303 { .ca_index = 0x0a,  .speakers = {   0,    0,  RR,  RL,  FC,    0,  FR,  FL } },
304 				 /* surround51 */
305 { .ca_index = 0x0b,  .speakers = {   0,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
306 				 /* 6.1 */
307 { .ca_index = 0x0f,  .speakers = {   0,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
308 				 /* surround71 */
309 { .ca_index = 0x13,  .speakers = { RRC,  RLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
310 
311 { .ca_index = 0x03,  .speakers = {   0,    0,   0,   0,  FC,  LFE,  FR,  FL } },
312 { .ca_index = 0x04,  .speakers = {   0,    0,   0,  RC,   0,    0,  FR,  FL } },
313 { .ca_index = 0x05,  .speakers = {   0,    0,   0,  RC,   0,  LFE,  FR,  FL } },
314 { .ca_index = 0x06,  .speakers = {   0,    0,   0,  RC,  FC,    0,  FR,  FL } },
315 { .ca_index = 0x07,  .speakers = {   0,    0,   0,  RC,  FC,  LFE,  FR,  FL } },
316 { .ca_index = 0x0c,  .speakers = {   0,   RC,  RR,  RL,   0,    0,  FR,  FL } },
317 { .ca_index = 0x0d,  .speakers = {   0,   RC,  RR,  RL,   0,  LFE,  FR,  FL } },
318 { .ca_index = 0x0e,  .speakers = {   0,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
319 { .ca_index = 0x10,  .speakers = { RRC,  RLC,  RR,  RL,   0,    0,  FR,  FL } },
320 { .ca_index = 0x11,  .speakers = { RRC,  RLC,  RR,  RL,   0,  LFE,  FR,  FL } },
321 { .ca_index = 0x12,  .speakers = { RRC,  RLC,  RR,  RL,  FC,    0,  FR,  FL } },
322 { .ca_index = 0x14,  .speakers = { FRC,  FLC,   0,   0,   0,    0,  FR,  FL } },
323 { .ca_index = 0x15,  .speakers = { FRC,  FLC,   0,   0,   0,  LFE,  FR,  FL } },
324 { .ca_index = 0x16,  .speakers = { FRC,  FLC,   0,   0,  FC,    0,  FR,  FL } },
325 { .ca_index = 0x17,  .speakers = { FRC,  FLC,   0,   0,  FC,  LFE,  FR,  FL } },
326 { .ca_index = 0x18,  .speakers = { FRC,  FLC,   0,  RC,   0,    0,  FR,  FL } },
327 { .ca_index = 0x19,  .speakers = { FRC,  FLC,   0,  RC,   0,  LFE,  FR,  FL } },
328 { .ca_index = 0x1a,  .speakers = { FRC,  FLC,   0,  RC,  FC,    0,  FR,  FL } },
329 { .ca_index = 0x1b,  .speakers = { FRC,  FLC,   0,  RC,  FC,  LFE,  FR,  FL } },
330 { .ca_index = 0x1c,  .speakers = { FRC,  FLC,  RR,  RL,   0,    0,  FR,  FL } },
331 { .ca_index = 0x1d,  .speakers = { FRC,  FLC,  RR,  RL,   0,  LFE,  FR,  FL } },
332 { .ca_index = 0x1e,  .speakers = { FRC,  FLC,  RR,  RL,  FC,    0,  FR,  FL } },
333 { .ca_index = 0x1f,  .speakers = { FRC,  FLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
334 { .ca_index = 0x20,  .speakers = {   0,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
335 { .ca_index = 0x21,  .speakers = {   0,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
336 { .ca_index = 0x22,  .speakers = {  TC,    0,  RR,  RL,  FC,    0,  FR,  FL } },
337 { .ca_index = 0x23,  .speakers = {  TC,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
338 { .ca_index = 0x24,  .speakers = { FRH,  FLH,  RR,  RL,   0,    0,  FR,  FL } },
339 { .ca_index = 0x25,  .speakers = { FRH,  FLH,  RR,  RL,   0,  LFE,  FR,  FL } },
340 { .ca_index = 0x26,  .speakers = { FRW,  FLW,  RR,  RL,   0,    0,  FR,  FL } },
341 { .ca_index = 0x27,  .speakers = { FRW,  FLW,  RR,  RL,   0,  LFE,  FR,  FL } },
342 { .ca_index = 0x28,  .speakers = {  TC,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
343 { .ca_index = 0x29,  .speakers = {  TC,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
344 { .ca_index = 0x2a,  .speakers = { FCH,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
345 { .ca_index = 0x2b,  .speakers = { FCH,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
346 { .ca_index = 0x2c,  .speakers = {  TC,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
347 { .ca_index = 0x2d,  .speakers = {  TC,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
348 { .ca_index = 0x2e,  .speakers = { FRH,  FLH,  RR,  RL,  FC,    0,  FR,  FL } },
349 { .ca_index = 0x2f,  .speakers = { FRH,  FLH,  RR,  RL,  FC,  LFE,  FR,  FL } },
350 { .ca_index = 0x30,  .speakers = { FRW,  FLW,  RR,  RL,  FC,    0,  FR,  FL } },
351 { .ca_index = 0x31,  .speakers = { FRW,  FLW,  RR,  RL,  FC,  LFE,  FR,  FL } },
352 };
353 
354 
355 /*
356  * HDMI routines
357  */
358 
359 #define get_pin(spec, idx) \
360 	((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
361 #define get_cvt(spec, idx) \
362 	((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
363 #define get_pcm_rec(spec, idx)	((spec)->pcm_rec[idx])
364 
365 static int pin_nid_to_pin_index(struct hda_codec *codec, hda_nid_t pin_nid)
366 {
367 	struct hdmi_spec *spec = codec->spec;
368 	int pin_idx;
369 
370 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
371 		if (get_pin(spec, pin_idx)->pin_nid == pin_nid)
372 			return pin_idx;
373 
374 	codec_warn(codec, "HDMI: pin nid %d not registered\n", pin_nid);
375 	return -EINVAL;
376 }
377 
378 static int hinfo_to_pin_index(struct hda_codec *codec,
379 			      struct hda_pcm_stream *hinfo)
380 {
381 	struct hdmi_spec *spec = codec->spec;
382 	int pin_idx;
383 
384 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
385 		if (get_pcm_rec(spec, pin_idx)->stream == hinfo)
386 			return pin_idx;
387 
388 	codec_warn(codec, "HDMI: hinfo %p not registered\n", hinfo);
389 	return -EINVAL;
390 }
391 
392 static int cvt_nid_to_cvt_index(struct hda_codec *codec, hda_nid_t cvt_nid)
393 {
394 	struct hdmi_spec *spec = codec->spec;
395 	int cvt_idx;
396 
397 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
398 		if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
399 			return cvt_idx;
400 
401 	codec_warn(codec, "HDMI: cvt nid %d not registered\n", cvt_nid);
402 	return -EINVAL;
403 }
404 
405 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
406 			struct snd_ctl_elem_info *uinfo)
407 {
408 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
409 	struct hdmi_spec *spec = codec->spec;
410 	struct hdmi_spec_per_pin *per_pin;
411 	struct hdmi_eld *eld;
412 	int pin_idx;
413 
414 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
415 
416 	pin_idx = kcontrol->private_value;
417 	per_pin = get_pin(spec, pin_idx);
418 	eld = &per_pin->sink_eld;
419 
420 	mutex_lock(&per_pin->lock);
421 	uinfo->count = eld->eld_valid ? eld->eld_size : 0;
422 	mutex_unlock(&per_pin->lock);
423 
424 	return 0;
425 }
426 
427 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
428 			struct snd_ctl_elem_value *ucontrol)
429 {
430 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
431 	struct hdmi_spec *spec = codec->spec;
432 	struct hdmi_spec_per_pin *per_pin;
433 	struct hdmi_eld *eld;
434 	int pin_idx;
435 
436 	pin_idx = kcontrol->private_value;
437 	per_pin = get_pin(spec, pin_idx);
438 	eld = &per_pin->sink_eld;
439 
440 	mutex_lock(&per_pin->lock);
441 	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
442 		mutex_unlock(&per_pin->lock);
443 		snd_BUG();
444 		return -EINVAL;
445 	}
446 
447 	memset(ucontrol->value.bytes.data, 0,
448 	       ARRAY_SIZE(ucontrol->value.bytes.data));
449 	if (eld->eld_valid)
450 		memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
451 		       eld->eld_size);
452 	mutex_unlock(&per_pin->lock);
453 
454 	return 0;
455 }
456 
457 static struct snd_kcontrol_new eld_bytes_ctl = {
458 	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
459 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
460 	.name = "ELD",
461 	.info = hdmi_eld_ctl_info,
462 	.get = hdmi_eld_ctl_get,
463 };
464 
465 static int hdmi_create_eld_ctl(struct hda_codec *codec, int pin_idx,
466 			int device)
467 {
468 	struct snd_kcontrol *kctl;
469 	struct hdmi_spec *spec = codec->spec;
470 	int err;
471 
472 	kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
473 	if (!kctl)
474 		return -ENOMEM;
475 	kctl->private_value = pin_idx;
476 	kctl->id.device = device;
477 
478 	err = snd_hda_ctl_add(codec, get_pin(spec, pin_idx)->pin_nid, kctl);
479 	if (err < 0)
480 		return err;
481 
482 	get_pin(spec, pin_idx)->eld_ctl = kctl;
483 	return 0;
484 }
485 
486 #ifdef BE_PARANOID
487 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
488 				int *packet_index, int *byte_index)
489 {
490 	int val;
491 
492 	val = snd_hda_codec_read(codec, pin_nid, 0,
493 				 AC_VERB_GET_HDMI_DIP_INDEX, 0);
494 
495 	*packet_index = val >> 5;
496 	*byte_index = val & 0x1f;
497 }
498 #endif
499 
500 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
501 				int packet_index, int byte_index)
502 {
503 	int val;
504 
505 	val = (packet_index << 5) | (byte_index & 0x1f);
506 
507 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
508 }
509 
510 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
511 				unsigned char val)
512 {
513 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
514 }
515 
516 static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
517 {
518 	struct hdmi_spec *spec = codec->spec;
519 	int pin_out;
520 
521 	/* Unmute */
522 	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
523 		snd_hda_codec_write(codec, pin_nid, 0,
524 				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
525 
526 	if (spec->dyn_pin_out)
527 		/* Disable pin out until stream is active */
528 		pin_out = 0;
529 	else
530 		/* Enable pin out: some machines with GM965 gets broken output
531 		 * when the pin is disabled or changed while using with HDMI
532 		 */
533 		pin_out = PIN_OUT;
534 
535 	snd_hda_codec_write(codec, pin_nid, 0,
536 			    AC_VERB_SET_PIN_WIDGET_CONTROL, pin_out);
537 }
538 
539 static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t cvt_nid)
540 {
541 	return 1 + snd_hda_codec_read(codec, cvt_nid, 0,
542 					AC_VERB_GET_CVT_CHAN_COUNT, 0);
543 }
544 
545 static void hdmi_set_channel_count(struct hda_codec *codec,
546 				   hda_nid_t cvt_nid, int chs)
547 {
548 	if (chs != hdmi_get_channel_count(codec, cvt_nid))
549 		snd_hda_codec_write(codec, cvt_nid, 0,
550 				    AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
551 }
552 
553 /*
554  * ELD proc files
555  */
556 
557 #ifdef CONFIG_SND_PROC_FS
558 static void print_eld_info(struct snd_info_entry *entry,
559 			   struct snd_info_buffer *buffer)
560 {
561 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
562 
563 	mutex_lock(&per_pin->lock);
564 	snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer);
565 	mutex_unlock(&per_pin->lock);
566 }
567 
568 static void write_eld_info(struct snd_info_entry *entry,
569 			   struct snd_info_buffer *buffer)
570 {
571 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
572 
573 	mutex_lock(&per_pin->lock);
574 	snd_hdmi_write_eld_info(&per_pin->sink_eld, buffer);
575 	mutex_unlock(&per_pin->lock);
576 }
577 
578 static int eld_proc_new(struct hdmi_spec_per_pin *per_pin, int index)
579 {
580 	char name[32];
581 	struct hda_codec *codec = per_pin->codec;
582 	struct snd_info_entry *entry;
583 	int err;
584 
585 	snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index);
586 	err = snd_card_proc_new(codec->card, name, &entry);
587 	if (err < 0)
588 		return err;
589 
590 	snd_info_set_text_ops(entry, per_pin, print_eld_info);
591 	entry->c.text.write = write_eld_info;
592 	entry->mode |= S_IWUSR;
593 	per_pin->proc_entry = entry;
594 
595 	return 0;
596 }
597 
598 static void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
599 {
600 	if (!per_pin->codec->bus->shutdown) {
601 		snd_info_free_entry(per_pin->proc_entry);
602 		per_pin->proc_entry = NULL;
603 	}
604 }
605 #else
606 static inline int eld_proc_new(struct hdmi_spec_per_pin *per_pin,
607 			       int index)
608 {
609 	return 0;
610 }
611 static inline void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
612 {
613 }
614 #endif
615 
616 /*
617  * Channel mapping routines
618  */
619 
620 /*
621  * Compute derived values in channel_allocations[].
622  */
623 static void init_channel_allocations(void)
624 {
625 	int i, j;
626 	struct cea_channel_speaker_allocation *p;
627 
628 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
629 		p = channel_allocations + i;
630 		p->channels = 0;
631 		p->spk_mask = 0;
632 		for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
633 			if (p->speakers[j]) {
634 				p->channels++;
635 				p->spk_mask |= p->speakers[j];
636 			}
637 	}
638 }
639 
640 static int get_channel_allocation_order(int ca)
641 {
642 	int i;
643 
644 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
645 		if (channel_allocations[i].ca_index == ca)
646 			break;
647 	}
648 	return i;
649 }
650 
651 /*
652  * The transformation takes two steps:
653  *
654  *	eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
655  *	      spk_mask => (channel_allocations[])         => ai->CA
656  *
657  * TODO: it could select the wrong CA from multiple candidates.
658 */
659 static int hdmi_channel_allocation(struct hda_codec *codec,
660 				   struct hdmi_eld *eld, int channels)
661 {
662 	int i;
663 	int ca = 0;
664 	int spk_mask = 0;
665 	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
666 
667 	/*
668 	 * CA defaults to 0 for basic stereo audio
669 	 */
670 	if (channels <= 2)
671 		return 0;
672 
673 	/*
674 	 * expand ELD's speaker allocation mask
675 	 *
676 	 * ELD tells the speaker mask in a compact(paired) form,
677 	 * expand ELD's notions to match the ones used by Audio InfoFrame.
678 	 */
679 	for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
680 		if (eld->info.spk_alloc & (1 << i))
681 			spk_mask |= eld_speaker_allocation_bits[i];
682 	}
683 
684 	/* search for the first working match in the CA table */
685 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
686 		if (channels == channel_allocations[i].channels &&
687 		    (spk_mask & channel_allocations[i].spk_mask) ==
688 				channel_allocations[i].spk_mask) {
689 			ca = channel_allocations[i].ca_index;
690 			break;
691 		}
692 	}
693 
694 	if (!ca) {
695 		/* if there was no match, select the regular ALSA channel
696 		 * allocation with the matching number of channels */
697 		for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
698 			if (channels == channel_allocations[i].channels) {
699 				ca = channel_allocations[i].ca_index;
700 				break;
701 			}
702 		}
703 	}
704 
705 	snd_print_channel_allocation(eld->info.spk_alloc, buf, sizeof(buf));
706 	codec_dbg(codec, "HDMI: select CA 0x%x for %d-channel allocation: %s\n",
707 		    ca, channels, buf);
708 
709 	return ca;
710 }
711 
712 static void hdmi_debug_channel_mapping(struct hda_codec *codec,
713 				       hda_nid_t pin_nid)
714 {
715 #ifdef CONFIG_SND_DEBUG_VERBOSE
716 	struct hdmi_spec *spec = codec->spec;
717 	int i;
718 	int channel;
719 
720 	for (i = 0; i < 8; i++) {
721 		channel = spec->ops.pin_get_slot_channel(codec, pin_nid, i);
722 		codec_dbg(codec, "HDMI: ASP channel %d => slot %d\n",
723 						channel, i);
724 	}
725 #endif
726 }
727 
728 static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
729 				       hda_nid_t pin_nid,
730 				       bool non_pcm,
731 				       int ca)
732 {
733 	struct hdmi_spec *spec = codec->spec;
734 	struct cea_channel_speaker_allocation *ch_alloc;
735 	int i;
736 	int err;
737 	int order;
738 	int non_pcm_mapping[8];
739 
740 	order = get_channel_allocation_order(ca);
741 	ch_alloc = &channel_allocations[order];
742 
743 	if (hdmi_channel_mapping[ca][1] == 0) {
744 		int hdmi_slot = 0;
745 		/* fill actual channel mappings in ALSA channel (i) order */
746 		for (i = 0; i < ch_alloc->channels; i++) {
747 			while (!ch_alloc->speakers[7 - hdmi_slot] && !WARN_ON(hdmi_slot >= 8))
748 				hdmi_slot++; /* skip zero slots */
749 
750 			hdmi_channel_mapping[ca][i] = (i << 4) | hdmi_slot++;
751 		}
752 		/* fill the rest of the slots with ALSA channel 0xf */
753 		for (hdmi_slot = 0; hdmi_slot < 8; hdmi_slot++)
754 			if (!ch_alloc->speakers[7 - hdmi_slot])
755 				hdmi_channel_mapping[ca][i++] = (0xf << 4) | hdmi_slot;
756 	}
757 
758 	if (non_pcm) {
759 		for (i = 0; i < ch_alloc->channels; i++)
760 			non_pcm_mapping[i] = (i << 4) | i;
761 		for (; i < 8; i++)
762 			non_pcm_mapping[i] = (0xf << 4) | i;
763 	}
764 
765 	for (i = 0; i < 8; i++) {
766 		int slotsetup = non_pcm ? non_pcm_mapping[i] : hdmi_channel_mapping[ca][i];
767 		int hdmi_slot = slotsetup & 0x0f;
768 		int channel = (slotsetup & 0xf0) >> 4;
769 		err = spec->ops.pin_set_slot_channel(codec, pin_nid, hdmi_slot, channel);
770 		if (err) {
771 			codec_dbg(codec, "HDMI: channel mapping failed\n");
772 			break;
773 		}
774 	}
775 }
776 
777 struct channel_map_table {
778 	unsigned char map;		/* ALSA API channel map position */
779 	int spk_mask;			/* speaker position bit mask */
780 };
781 
782 static struct channel_map_table map_tables[] = {
783 	{ SNDRV_CHMAP_FL,	FL },
784 	{ SNDRV_CHMAP_FR,	FR },
785 	{ SNDRV_CHMAP_RL,	RL },
786 	{ SNDRV_CHMAP_RR,	RR },
787 	{ SNDRV_CHMAP_LFE,	LFE },
788 	{ SNDRV_CHMAP_FC,	FC },
789 	{ SNDRV_CHMAP_RLC,	RLC },
790 	{ SNDRV_CHMAP_RRC,	RRC },
791 	{ SNDRV_CHMAP_RC,	RC },
792 	{ SNDRV_CHMAP_FLC,	FLC },
793 	{ SNDRV_CHMAP_FRC,	FRC },
794 	{ SNDRV_CHMAP_TFL,	FLH },
795 	{ SNDRV_CHMAP_TFR,	FRH },
796 	{ SNDRV_CHMAP_FLW,	FLW },
797 	{ SNDRV_CHMAP_FRW,	FRW },
798 	{ SNDRV_CHMAP_TC,	TC },
799 	{ SNDRV_CHMAP_TFC,	FCH },
800 	{} /* terminator */
801 };
802 
803 /* from ALSA API channel position to speaker bit mask */
804 static int to_spk_mask(unsigned char c)
805 {
806 	struct channel_map_table *t = map_tables;
807 	for (; t->map; t++) {
808 		if (t->map == c)
809 			return t->spk_mask;
810 	}
811 	return 0;
812 }
813 
814 /* from ALSA API channel position to CEA slot */
815 static int to_cea_slot(int ordered_ca, unsigned char pos)
816 {
817 	int mask = to_spk_mask(pos);
818 	int i;
819 
820 	if (mask) {
821 		for (i = 0; i < 8; i++) {
822 			if (channel_allocations[ordered_ca].speakers[7 - i] == mask)
823 				return i;
824 		}
825 	}
826 
827 	return -1;
828 }
829 
830 /* from speaker bit mask to ALSA API channel position */
831 static int spk_to_chmap(int spk)
832 {
833 	struct channel_map_table *t = map_tables;
834 	for (; t->map; t++) {
835 		if (t->spk_mask == spk)
836 			return t->map;
837 	}
838 	return 0;
839 }
840 
841 /* from CEA slot to ALSA API channel position */
842 static int from_cea_slot(int ordered_ca, unsigned char slot)
843 {
844 	int mask = channel_allocations[ordered_ca].speakers[7 - slot];
845 
846 	return spk_to_chmap(mask);
847 }
848 
849 /* get the CA index corresponding to the given ALSA API channel map */
850 static int hdmi_manual_channel_allocation(int chs, unsigned char *map)
851 {
852 	int i, spks = 0, spk_mask = 0;
853 
854 	for (i = 0; i < chs; i++) {
855 		int mask = to_spk_mask(map[i]);
856 		if (mask) {
857 			spk_mask |= mask;
858 			spks++;
859 		}
860 	}
861 
862 	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
863 		if ((chs == channel_allocations[i].channels ||
864 		     spks == channel_allocations[i].channels) &&
865 		    (spk_mask & channel_allocations[i].spk_mask) ==
866 				channel_allocations[i].spk_mask)
867 			return channel_allocations[i].ca_index;
868 	}
869 	return -1;
870 }
871 
872 /* set up the channel slots for the given ALSA API channel map */
873 static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
874 					     hda_nid_t pin_nid,
875 					     int chs, unsigned char *map,
876 					     int ca)
877 {
878 	struct hdmi_spec *spec = codec->spec;
879 	int ordered_ca = get_channel_allocation_order(ca);
880 	int alsa_pos, hdmi_slot;
881 	int assignments[8] = {[0 ... 7] = 0xf};
882 
883 	for (alsa_pos = 0; alsa_pos < chs; alsa_pos++) {
884 
885 		hdmi_slot = to_cea_slot(ordered_ca, map[alsa_pos]);
886 
887 		if (hdmi_slot < 0)
888 			continue; /* unassigned channel */
889 
890 		assignments[hdmi_slot] = alsa_pos;
891 	}
892 
893 	for (hdmi_slot = 0; hdmi_slot < 8; hdmi_slot++) {
894 		int err;
895 
896 		err = spec->ops.pin_set_slot_channel(codec, pin_nid, hdmi_slot,
897 						     assignments[hdmi_slot]);
898 		if (err)
899 			return -EINVAL;
900 	}
901 	return 0;
902 }
903 
904 /* store ALSA API channel map from the current default map */
905 static void hdmi_setup_fake_chmap(unsigned char *map, int ca)
906 {
907 	int i;
908 	int ordered_ca = get_channel_allocation_order(ca);
909 	for (i = 0; i < 8; i++) {
910 		if (i < channel_allocations[ordered_ca].channels)
911 			map[i] = from_cea_slot(ordered_ca, hdmi_channel_mapping[ca][i] & 0x0f);
912 		else
913 			map[i] = 0;
914 	}
915 }
916 
917 static void hdmi_setup_channel_mapping(struct hda_codec *codec,
918 				       hda_nid_t pin_nid, bool non_pcm, int ca,
919 				       int channels, unsigned char *map,
920 				       bool chmap_set)
921 {
922 	if (!non_pcm && chmap_set) {
923 		hdmi_manual_setup_channel_mapping(codec, pin_nid,
924 						  channels, map, ca);
925 	} else {
926 		hdmi_std_setup_channel_mapping(codec, pin_nid, non_pcm, ca);
927 		hdmi_setup_fake_chmap(map, ca);
928 	}
929 
930 	hdmi_debug_channel_mapping(codec, pin_nid);
931 }
932 
933 static int hdmi_pin_set_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
934 				     int asp_slot, int channel)
935 {
936 	return snd_hda_codec_write(codec, pin_nid, 0,
937 				   AC_VERB_SET_HDMI_CHAN_SLOT,
938 				   (channel << 4) | asp_slot);
939 }
940 
941 static int hdmi_pin_get_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
942 				     int asp_slot)
943 {
944 	return (snd_hda_codec_read(codec, pin_nid, 0,
945 				   AC_VERB_GET_HDMI_CHAN_SLOT,
946 				   asp_slot) & 0xf0) >> 4;
947 }
948 
949 /*
950  * Audio InfoFrame routines
951  */
952 
953 /*
954  * Enable Audio InfoFrame Transmission
955  */
956 static void hdmi_start_infoframe_trans(struct hda_codec *codec,
957 				       hda_nid_t pin_nid)
958 {
959 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
960 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
961 						AC_DIPXMIT_BEST);
962 }
963 
964 /*
965  * Disable Audio InfoFrame Transmission
966  */
967 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
968 				      hda_nid_t pin_nid)
969 {
970 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
971 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
972 						AC_DIPXMIT_DISABLE);
973 }
974 
975 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
976 {
977 #ifdef CONFIG_SND_DEBUG_VERBOSE
978 	int i;
979 	int size;
980 
981 	size = snd_hdmi_get_eld_size(codec, pin_nid);
982 	codec_dbg(codec, "HDMI: ELD buf size is %d\n", size);
983 
984 	for (i = 0; i < 8; i++) {
985 		size = snd_hda_codec_read(codec, pin_nid, 0,
986 						AC_VERB_GET_HDMI_DIP_SIZE, i);
987 		codec_dbg(codec, "HDMI: DIP GP[%d] buf size is %d\n", i, size);
988 	}
989 #endif
990 }
991 
992 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
993 {
994 #ifdef BE_PARANOID
995 	int i, j;
996 	int size;
997 	int pi, bi;
998 	for (i = 0; i < 8; i++) {
999 		size = snd_hda_codec_read(codec, pin_nid, 0,
1000 						AC_VERB_GET_HDMI_DIP_SIZE, i);
1001 		if (size == 0)
1002 			continue;
1003 
1004 		hdmi_set_dip_index(codec, pin_nid, i, 0x0);
1005 		for (j = 1; j < 1000; j++) {
1006 			hdmi_write_dip_byte(codec, pin_nid, 0x0);
1007 			hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
1008 			if (pi != i)
1009 				codec_dbg(codec, "dip index %d: %d != %d\n",
1010 						bi, pi, i);
1011 			if (bi == 0) /* byte index wrapped around */
1012 				break;
1013 		}
1014 		codec_dbg(codec,
1015 			"HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
1016 			i, size, j);
1017 	}
1018 #endif
1019 }
1020 
1021 static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
1022 {
1023 	u8 *bytes = (u8 *)hdmi_ai;
1024 	u8 sum = 0;
1025 	int i;
1026 
1027 	hdmi_ai->checksum = 0;
1028 
1029 	for (i = 0; i < sizeof(*hdmi_ai); i++)
1030 		sum += bytes[i];
1031 
1032 	hdmi_ai->checksum = -sum;
1033 }
1034 
1035 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
1036 				      hda_nid_t pin_nid,
1037 				      u8 *dip, int size)
1038 {
1039 	int i;
1040 
1041 	hdmi_debug_dip_size(codec, pin_nid);
1042 	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
1043 
1044 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
1045 	for (i = 0; i < size; i++)
1046 		hdmi_write_dip_byte(codec, pin_nid, dip[i]);
1047 }
1048 
1049 static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
1050 				    u8 *dip, int size)
1051 {
1052 	u8 val;
1053 	int i;
1054 
1055 	if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
1056 							    != AC_DIPXMIT_BEST)
1057 		return false;
1058 
1059 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
1060 	for (i = 0; i < size; i++) {
1061 		val = snd_hda_codec_read(codec, pin_nid, 0,
1062 					 AC_VERB_GET_HDMI_DIP_DATA, 0);
1063 		if (val != dip[i])
1064 			return false;
1065 	}
1066 
1067 	return true;
1068 }
1069 
1070 static void hdmi_pin_setup_infoframe(struct hda_codec *codec,
1071 				     hda_nid_t pin_nid,
1072 				     int ca, int active_channels,
1073 				     int conn_type)
1074 {
1075 	union audio_infoframe ai;
1076 
1077 	memset(&ai, 0, sizeof(ai));
1078 	if (conn_type == 0) { /* HDMI */
1079 		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
1080 
1081 		hdmi_ai->type		= 0x84;
1082 		hdmi_ai->ver		= 0x01;
1083 		hdmi_ai->len		= 0x0a;
1084 		hdmi_ai->CC02_CT47	= active_channels - 1;
1085 		hdmi_ai->CA		= ca;
1086 		hdmi_checksum_audio_infoframe(hdmi_ai);
1087 	} else if (conn_type == 1) { /* DisplayPort */
1088 		struct dp_audio_infoframe *dp_ai = &ai.dp;
1089 
1090 		dp_ai->type		= 0x84;
1091 		dp_ai->len		= 0x1b;
1092 		dp_ai->ver		= 0x11 << 2;
1093 		dp_ai->CC02_CT47	= active_channels - 1;
1094 		dp_ai->CA		= ca;
1095 	} else {
1096 		codec_dbg(codec, "HDMI: unknown connection type at pin %d\n",
1097 			    pin_nid);
1098 		return;
1099 	}
1100 
1101 	/*
1102 	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
1103 	 * sizeof(*dp_ai) to avoid partial match/update problems when
1104 	 * the user switches between HDMI/DP monitors.
1105 	 */
1106 	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
1107 					sizeof(ai))) {
1108 		codec_dbg(codec,
1109 			  "hdmi_pin_setup_infoframe: pin=%d channels=%d ca=0x%02x\n",
1110 			    pin_nid,
1111 			    active_channels, ca);
1112 		hdmi_stop_infoframe_trans(codec, pin_nid);
1113 		hdmi_fill_audio_infoframe(codec, pin_nid,
1114 					    ai.bytes, sizeof(ai));
1115 		hdmi_start_infoframe_trans(codec, pin_nid);
1116 	}
1117 }
1118 
1119 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
1120 				       struct hdmi_spec_per_pin *per_pin,
1121 				       bool non_pcm)
1122 {
1123 	struct hdmi_spec *spec = codec->spec;
1124 	hda_nid_t pin_nid = per_pin->pin_nid;
1125 	int channels = per_pin->channels;
1126 	int active_channels;
1127 	struct hdmi_eld *eld;
1128 	int ca, ordered_ca;
1129 
1130 	if (!channels)
1131 		return;
1132 
1133 	if (is_haswell_plus(codec))
1134 		snd_hda_codec_write(codec, pin_nid, 0,
1135 					    AC_VERB_SET_AMP_GAIN_MUTE,
1136 					    AMP_OUT_UNMUTE);
1137 
1138 	eld = &per_pin->sink_eld;
1139 
1140 	if (!non_pcm && per_pin->chmap_set)
1141 		ca = hdmi_manual_channel_allocation(channels, per_pin->chmap);
1142 	else
1143 		ca = hdmi_channel_allocation(codec, eld, channels);
1144 	if (ca < 0)
1145 		ca = 0;
1146 
1147 	ordered_ca = get_channel_allocation_order(ca);
1148 	active_channels = channel_allocations[ordered_ca].channels;
1149 
1150 	hdmi_set_channel_count(codec, per_pin->cvt_nid, active_channels);
1151 
1152 	/*
1153 	 * always configure channel mapping, it may have been changed by the
1154 	 * user in the meantime
1155 	 */
1156 	hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
1157 				   channels, per_pin->chmap,
1158 				   per_pin->chmap_set);
1159 
1160 	spec->ops.pin_setup_infoframe(codec, pin_nid, ca, active_channels,
1161 				      eld->info.conn_type);
1162 
1163 	per_pin->non_pcm = non_pcm;
1164 }
1165 
1166 /*
1167  * Unsolicited events
1168  */
1169 
1170 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
1171 
1172 static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid)
1173 {
1174 	struct hdmi_spec *spec = codec->spec;
1175 	int pin_idx = pin_nid_to_pin_index(codec, nid);
1176 
1177 	if (pin_idx < 0)
1178 		return;
1179 	if (hdmi_present_sense(get_pin(spec, pin_idx), 1))
1180 		snd_hda_jack_report_sync(codec);
1181 }
1182 
1183 static void jack_callback(struct hda_codec *codec,
1184 			  struct hda_jack_callback *jack)
1185 {
1186 	check_presence_and_report(codec, jack->tbl->nid);
1187 }
1188 
1189 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
1190 {
1191 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1192 	struct hda_jack_tbl *jack;
1193 	int dev_entry = (res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
1194 
1195 	jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
1196 	if (!jack)
1197 		return;
1198 	jack->jack_dirty = 1;
1199 
1200 	codec_dbg(codec,
1201 		"HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
1202 		codec->addr, jack->nid, dev_entry, !!(res & AC_UNSOL_RES_IA),
1203 		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
1204 
1205 	check_presence_and_report(codec, jack->nid);
1206 }
1207 
1208 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
1209 {
1210 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1211 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1212 	int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
1213 	int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
1214 
1215 	codec_info(codec,
1216 		"HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
1217 		codec->addr,
1218 		tag,
1219 		subtag,
1220 		cp_state,
1221 		cp_ready);
1222 
1223 	/* TODO */
1224 	if (cp_state)
1225 		;
1226 	if (cp_ready)
1227 		;
1228 }
1229 
1230 
1231 static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
1232 {
1233 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
1234 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
1235 
1236 	if (!snd_hda_jack_tbl_get_from_tag(codec, tag)) {
1237 		codec_dbg(codec, "Unexpected HDMI event tag 0x%x\n", tag);
1238 		return;
1239 	}
1240 
1241 	if (subtag == 0)
1242 		hdmi_intrinsic_event(codec, res);
1243 	else
1244 		hdmi_non_intrinsic_event(codec, res);
1245 }
1246 
1247 static void haswell_verify_D0(struct hda_codec *codec,
1248 		hda_nid_t cvt_nid, hda_nid_t nid)
1249 {
1250 	int pwr;
1251 
1252 	/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
1253 	 * thus pins could only choose converter 0 for use. Make sure the
1254 	 * converters are in correct power state */
1255 	if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
1256 		snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
1257 
1258 	if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
1259 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
1260 				    AC_PWRST_D0);
1261 		msleep(40);
1262 		pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
1263 		pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
1264 		codec_dbg(codec, "Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
1265 	}
1266 }
1267 
1268 /*
1269  * Callbacks
1270  */
1271 
1272 /* HBR should be Non-PCM, 8 channels */
1273 #define is_hbr_format(format) \
1274 	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
1275 
1276 static int hdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
1277 			      bool hbr)
1278 {
1279 	int pinctl, new_pinctl;
1280 
1281 	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
1282 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1283 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1284 
1285 		if (pinctl < 0)
1286 			return hbr ? -EINVAL : 0;
1287 
1288 		new_pinctl = pinctl & ~AC_PINCTL_EPT;
1289 		if (hbr)
1290 			new_pinctl |= AC_PINCTL_EPT_HBR;
1291 		else
1292 			new_pinctl |= AC_PINCTL_EPT_NATIVE;
1293 
1294 		codec_dbg(codec,
1295 			  "hdmi_pin_hbr_setup: NID=0x%x, %spinctl=0x%x\n",
1296 			    pin_nid,
1297 			    pinctl == new_pinctl ? "" : "new-",
1298 			    new_pinctl);
1299 
1300 		if (pinctl != new_pinctl)
1301 			snd_hda_codec_write(codec, pin_nid, 0,
1302 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
1303 					    new_pinctl);
1304 	} else if (hbr)
1305 		return -EINVAL;
1306 
1307 	return 0;
1308 }
1309 
1310 static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
1311 			      hda_nid_t pin_nid, u32 stream_tag, int format)
1312 {
1313 	struct hdmi_spec *spec = codec->spec;
1314 	int err;
1315 
1316 	if (is_haswell_plus(codec))
1317 		haswell_verify_D0(codec, cvt_nid, pin_nid);
1318 
1319 	err = spec->ops.pin_hbr_setup(codec, pin_nid, is_hbr_format(format));
1320 
1321 	if (err) {
1322 		codec_dbg(codec, "hdmi_setup_stream: HBR is not supported\n");
1323 		return err;
1324 	}
1325 
1326 	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
1327 	return 0;
1328 }
1329 
1330 static int hdmi_choose_cvt(struct hda_codec *codec,
1331 			int pin_idx, int *cvt_id, int *mux_id)
1332 {
1333 	struct hdmi_spec *spec = codec->spec;
1334 	struct hdmi_spec_per_pin *per_pin;
1335 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1336 	int cvt_idx, mux_idx = 0;
1337 
1338 	per_pin = get_pin(spec, pin_idx);
1339 
1340 	/* Dynamically assign converter to stream */
1341 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1342 		per_cvt = get_cvt(spec, cvt_idx);
1343 
1344 		/* Must not already be assigned */
1345 		if (per_cvt->assigned)
1346 			continue;
1347 		/* Must be in pin's mux's list of converters */
1348 		for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
1349 			if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
1350 				break;
1351 		/* Not in mux list */
1352 		if (mux_idx == per_pin->num_mux_nids)
1353 			continue;
1354 		break;
1355 	}
1356 
1357 	/* No free converters */
1358 	if (cvt_idx == spec->num_cvts)
1359 		return -ENODEV;
1360 
1361 	per_pin->mux_idx = mux_idx;
1362 
1363 	if (cvt_id)
1364 		*cvt_id = cvt_idx;
1365 	if (mux_id)
1366 		*mux_id = mux_idx;
1367 
1368 	return 0;
1369 }
1370 
1371 /* Assure the pin select the right convetor */
1372 static void intel_verify_pin_cvt_connect(struct hda_codec *codec,
1373 			struct hdmi_spec_per_pin *per_pin)
1374 {
1375 	hda_nid_t pin_nid = per_pin->pin_nid;
1376 	int mux_idx, curr;
1377 
1378 	mux_idx = per_pin->mux_idx;
1379 	curr = snd_hda_codec_read(codec, pin_nid, 0,
1380 					  AC_VERB_GET_CONNECT_SEL, 0);
1381 	if (curr != mux_idx)
1382 		snd_hda_codec_write_cache(codec, pin_nid, 0,
1383 					    AC_VERB_SET_CONNECT_SEL,
1384 					    mux_idx);
1385 }
1386 
1387 /* Intel HDMI workaround to fix audio routing issue:
1388  * For some Intel display codecs, pins share the same connection list.
1389  * So a conveter can be selected by multiple pins and playback on any of these
1390  * pins will generate sound on the external display, because audio flows from
1391  * the same converter to the display pipeline. Also muting one pin may make
1392  * other pins have no sound output.
1393  * So this function assures that an assigned converter for a pin is not selected
1394  * by any other pins.
1395  */
1396 static void intel_not_share_assigned_cvt(struct hda_codec *codec,
1397 			hda_nid_t pin_nid, int mux_idx)
1398 {
1399 	struct hdmi_spec *spec = codec->spec;
1400 	hda_nid_t nid;
1401 	int cvt_idx, curr;
1402 	struct hdmi_spec_per_cvt *per_cvt;
1403 
1404 	/* configure all pins, including "no physical connection" ones */
1405 	for_each_hda_codec_node(nid, codec) {
1406 		unsigned int wid_caps = get_wcaps(codec, nid);
1407 		unsigned int wid_type = get_wcaps_type(wid_caps);
1408 
1409 		if (wid_type != AC_WID_PIN)
1410 			continue;
1411 
1412 		if (nid == pin_nid)
1413 			continue;
1414 
1415 		curr = snd_hda_codec_read(codec, nid, 0,
1416 					  AC_VERB_GET_CONNECT_SEL, 0);
1417 		if (curr != mux_idx)
1418 			continue;
1419 
1420 		/* choose an unassigned converter. The conveters in the
1421 		 * connection list are in the same order as in the codec.
1422 		 */
1423 		for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1424 			per_cvt = get_cvt(spec, cvt_idx);
1425 			if (!per_cvt->assigned) {
1426 				codec_dbg(codec,
1427 					  "choose cvt %d for pin nid %d\n",
1428 					cvt_idx, nid);
1429 				snd_hda_codec_write_cache(codec, nid, 0,
1430 					    AC_VERB_SET_CONNECT_SEL,
1431 					    cvt_idx);
1432 				break;
1433 			}
1434 		}
1435 	}
1436 }
1437 
1438 /*
1439  * HDA PCM callbacks
1440  */
1441 static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
1442 			 struct hda_codec *codec,
1443 			 struct snd_pcm_substream *substream)
1444 {
1445 	struct hdmi_spec *spec = codec->spec;
1446 	struct snd_pcm_runtime *runtime = substream->runtime;
1447 	int pin_idx, cvt_idx, mux_idx = 0;
1448 	struct hdmi_spec_per_pin *per_pin;
1449 	struct hdmi_eld *eld;
1450 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1451 	int err;
1452 
1453 	/* Validate hinfo */
1454 	pin_idx = hinfo_to_pin_index(codec, hinfo);
1455 	if (snd_BUG_ON(pin_idx < 0))
1456 		return -EINVAL;
1457 	per_pin = get_pin(spec, pin_idx);
1458 	eld = &per_pin->sink_eld;
1459 
1460 	err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx, &mux_idx);
1461 	if (err < 0)
1462 		return err;
1463 
1464 	per_cvt = get_cvt(spec, cvt_idx);
1465 	/* Claim converter */
1466 	per_cvt->assigned = 1;
1467 	per_pin->cvt_nid = per_cvt->cvt_nid;
1468 	hinfo->nid = per_cvt->cvt_nid;
1469 
1470 	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1471 			    AC_VERB_SET_CONNECT_SEL,
1472 			    mux_idx);
1473 
1474 	/* configure unused pins to choose other converters */
1475 	if (is_haswell_plus(codec) || is_valleyview_plus(codec))
1476 		intel_not_share_assigned_cvt(codec, per_pin->pin_nid, mux_idx);
1477 
1478 	snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
1479 
1480 	/* Initially set the converter's capabilities */
1481 	hinfo->channels_min = per_cvt->channels_min;
1482 	hinfo->channels_max = per_cvt->channels_max;
1483 	hinfo->rates = per_cvt->rates;
1484 	hinfo->formats = per_cvt->formats;
1485 	hinfo->maxbps = per_cvt->maxbps;
1486 
1487 	/* Restrict capabilities by ELD if this isn't disabled */
1488 	if (!static_hdmi_pcm && eld->eld_valid) {
1489 		snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
1490 		if (hinfo->channels_min > hinfo->channels_max ||
1491 		    !hinfo->rates || !hinfo->formats) {
1492 			per_cvt->assigned = 0;
1493 			hinfo->nid = 0;
1494 			snd_hda_spdif_ctls_unassign(codec, pin_idx);
1495 			return -ENODEV;
1496 		}
1497 	}
1498 
1499 	/* Store the updated parameters */
1500 	runtime->hw.channels_min = hinfo->channels_min;
1501 	runtime->hw.channels_max = hinfo->channels_max;
1502 	runtime->hw.formats = hinfo->formats;
1503 	runtime->hw.rates = hinfo->rates;
1504 
1505 	snd_pcm_hw_constraint_step(substream->runtime, 0,
1506 				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1507 	return 0;
1508 }
1509 
1510 /*
1511  * HDA/HDMI auto parsing
1512  */
1513 static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
1514 {
1515 	struct hdmi_spec *spec = codec->spec;
1516 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1517 	hda_nid_t pin_nid = per_pin->pin_nid;
1518 
1519 	if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
1520 		codec_warn(codec,
1521 			   "HDMI: pin %d wcaps %#x does not support connection list\n",
1522 			   pin_nid, get_wcaps(codec, pin_nid));
1523 		return -EINVAL;
1524 	}
1525 
1526 	per_pin->num_mux_nids = snd_hda_get_connections(codec, pin_nid,
1527 							per_pin->mux_nids,
1528 							HDA_MAX_CONNECTIONS);
1529 
1530 	return 0;
1531 }
1532 
1533 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
1534 {
1535 	struct hda_jack_tbl *jack;
1536 	struct hda_codec *codec = per_pin->codec;
1537 	struct hdmi_spec *spec = codec->spec;
1538 	struct hdmi_eld *eld = &spec->temp_eld;
1539 	struct hdmi_eld *pin_eld = &per_pin->sink_eld;
1540 	hda_nid_t pin_nid = per_pin->pin_nid;
1541 	/*
1542 	 * Always execute a GetPinSense verb here, even when called from
1543 	 * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
1544 	 * response's PD bit is not the real PD value, but indicates that
1545 	 * the real PD value changed. An older version of the HD-audio
1546 	 * specification worked this way. Hence, we just ignore the data in
1547 	 * the unsolicited response to avoid custom WARs.
1548 	 */
1549 	int present;
1550 	bool update_eld = false;
1551 	bool eld_changed = false;
1552 	bool ret;
1553 
1554 	snd_hda_power_up_pm(codec);
1555 	present = snd_hda_pin_sense(codec, pin_nid);
1556 
1557 	mutex_lock(&per_pin->lock);
1558 	pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
1559 	if (pin_eld->monitor_present)
1560 		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
1561 	else
1562 		eld->eld_valid = false;
1563 
1564 	codec_dbg(codec,
1565 		"HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
1566 		codec->addr, pin_nid, pin_eld->monitor_present, eld->eld_valid);
1567 
1568 	if (eld->eld_valid) {
1569 		if (spec->ops.pin_get_eld(codec, pin_nid, eld->eld_buffer,
1570 						     &eld->eld_size) < 0)
1571 			eld->eld_valid = false;
1572 		else {
1573 			memset(&eld->info, 0, sizeof(struct parsed_hdmi_eld));
1574 			if (snd_hdmi_parse_eld(codec, &eld->info, eld->eld_buffer,
1575 						    eld->eld_size) < 0)
1576 				eld->eld_valid = false;
1577 		}
1578 
1579 		if (eld->eld_valid) {
1580 			snd_hdmi_show_eld(codec, &eld->info);
1581 			update_eld = true;
1582 		}
1583 		else if (repoll) {
1584 			schedule_delayed_work(&per_pin->work,
1585 					      msecs_to_jiffies(300));
1586 			goto unlock;
1587 		}
1588 	}
1589 
1590 	if (pin_eld->eld_valid != eld->eld_valid)
1591 		eld_changed = true;
1592 
1593 	if (pin_eld->eld_valid && !eld->eld_valid)
1594 		update_eld = true;
1595 
1596 	if (update_eld) {
1597 		bool old_eld_valid = pin_eld->eld_valid;
1598 		pin_eld->eld_valid = eld->eld_valid;
1599 		if (pin_eld->eld_size != eld->eld_size ||
1600 			      memcmp(pin_eld->eld_buffer, eld->eld_buffer,
1601 				     eld->eld_size) != 0) {
1602 			memcpy(pin_eld->eld_buffer, eld->eld_buffer,
1603 			       eld->eld_size);
1604 			eld_changed = true;
1605 		}
1606 		pin_eld->eld_size = eld->eld_size;
1607 		pin_eld->info = eld->info;
1608 
1609 		/*
1610 		 * Re-setup pin and infoframe. This is needed e.g. when
1611 		 * - sink is first plugged-in (infoframe is not set up if !monitor_present)
1612 		 * - transcoder can change during stream playback on Haswell
1613 		 *   and this can make HW reset converter selection on a pin.
1614 		 */
1615 		if (eld->eld_valid && !old_eld_valid && per_pin->setup) {
1616 			if (is_haswell_plus(codec) ||
1617 				is_valleyview_plus(codec)) {
1618 				intel_verify_pin_cvt_connect(codec, per_pin);
1619 				intel_not_share_assigned_cvt(codec, pin_nid,
1620 							per_pin->mux_idx);
1621 			}
1622 
1623 			hdmi_setup_audio_infoframe(codec, per_pin,
1624 						   per_pin->non_pcm);
1625 		}
1626 	}
1627 
1628 	if (eld_changed)
1629 		snd_ctl_notify(codec->card,
1630 			       SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
1631 			       &per_pin->eld_ctl->id);
1632  unlock:
1633 	ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid;
1634 
1635 	jack = snd_hda_jack_tbl_get(codec, pin_nid);
1636 	if (jack)
1637 		jack->block_report = !ret;
1638 
1639 	mutex_unlock(&per_pin->lock);
1640 	snd_hda_power_down_pm(codec);
1641 	return ret;
1642 }
1643 
1644 static void hdmi_repoll_eld(struct work_struct *work)
1645 {
1646 	struct hdmi_spec_per_pin *per_pin =
1647 	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
1648 
1649 	if (per_pin->repoll_count++ > 6)
1650 		per_pin->repoll_count = 0;
1651 
1652 	if (hdmi_present_sense(per_pin, per_pin->repoll_count))
1653 		snd_hda_jack_report_sync(per_pin->codec);
1654 }
1655 
1656 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1657 					     hda_nid_t nid);
1658 
1659 static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
1660 {
1661 	struct hdmi_spec *spec = codec->spec;
1662 	unsigned int caps, config;
1663 	int pin_idx;
1664 	struct hdmi_spec_per_pin *per_pin;
1665 	int err;
1666 
1667 	caps = snd_hda_query_pin_caps(codec, pin_nid);
1668 	if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
1669 		return 0;
1670 
1671 	config = snd_hda_codec_get_pincfg(codec, pin_nid);
1672 	if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
1673 		return 0;
1674 
1675 	if (is_haswell_plus(codec))
1676 		intel_haswell_fixup_connect_list(codec, pin_nid);
1677 
1678 	pin_idx = spec->num_pins;
1679 	per_pin = snd_array_new(&spec->pins);
1680 	if (!per_pin)
1681 		return -ENOMEM;
1682 
1683 	per_pin->pin_nid = pin_nid;
1684 	per_pin->non_pcm = false;
1685 
1686 	err = hdmi_read_pin_conn(codec, pin_idx);
1687 	if (err < 0)
1688 		return err;
1689 
1690 	spec->num_pins++;
1691 
1692 	return 0;
1693 }
1694 
1695 static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1696 {
1697 	struct hdmi_spec *spec = codec->spec;
1698 	struct hdmi_spec_per_cvt *per_cvt;
1699 	unsigned int chans;
1700 	int err;
1701 
1702 	chans = get_wcaps(codec, cvt_nid);
1703 	chans = get_wcaps_channels(chans);
1704 
1705 	per_cvt = snd_array_new(&spec->cvts);
1706 	if (!per_cvt)
1707 		return -ENOMEM;
1708 
1709 	per_cvt->cvt_nid = cvt_nid;
1710 	per_cvt->channels_min = 2;
1711 	if (chans <= 16) {
1712 		per_cvt->channels_max = chans;
1713 		if (chans > spec->channels_max)
1714 			spec->channels_max = chans;
1715 	}
1716 
1717 	err = snd_hda_query_supported_pcm(codec, cvt_nid,
1718 					  &per_cvt->rates,
1719 					  &per_cvt->formats,
1720 					  &per_cvt->maxbps);
1721 	if (err < 0)
1722 		return err;
1723 
1724 	if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
1725 		spec->cvt_nids[spec->num_cvts] = cvt_nid;
1726 	spec->num_cvts++;
1727 
1728 	return 0;
1729 }
1730 
1731 static int hdmi_parse_codec(struct hda_codec *codec)
1732 {
1733 	hda_nid_t nid;
1734 	int i, nodes;
1735 
1736 	nodes = snd_hda_get_sub_nodes(codec, codec->core.afg, &nid);
1737 	if (!nid || nodes < 0) {
1738 		codec_warn(codec, "HDMI: failed to get afg sub nodes\n");
1739 		return -EINVAL;
1740 	}
1741 
1742 	for (i = 0; i < nodes; i++, nid++) {
1743 		unsigned int caps;
1744 		unsigned int type;
1745 
1746 		caps = get_wcaps(codec, nid);
1747 		type = get_wcaps_type(caps);
1748 
1749 		if (!(caps & AC_WCAP_DIGITAL))
1750 			continue;
1751 
1752 		switch (type) {
1753 		case AC_WID_AUD_OUT:
1754 			hdmi_add_cvt(codec, nid);
1755 			break;
1756 		case AC_WID_PIN:
1757 			hdmi_add_pin(codec, nid);
1758 			break;
1759 		}
1760 	}
1761 
1762 	return 0;
1763 }
1764 
1765 /*
1766  */
1767 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1768 {
1769 	struct hda_spdif_out *spdif;
1770 	bool non_pcm;
1771 
1772 	mutex_lock(&codec->spdif_mutex);
1773 	spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
1774 	non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1775 	mutex_unlock(&codec->spdif_mutex);
1776 	return non_pcm;
1777 }
1778 
1779 /* There is a fixed mapping between audio pin node and display port
1780  * on current Intel platforms:
1781  * Pin Widget 5 - PORT B (port = 1 in i915 driver)
1782  * Pin Widget 6 - PORT C (port = 2 in i915 driver)
1783  * Pin Widget 7 - PORT D (port = 3 in i915 driver)
1784  */
1785 static int intel_pin2port(hda_nid_t pin_nid)
1786 {
1787 	return pin_nid - 4;
1788 }
1789 
1790 /*
1791  * HDMI callbacks
1792  */
1793 
1794 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1795 					   struct hda_codec *codec,
1796 					   unsigned int stream_tag,
1797 					   unsigned int format,
1798 					   struct snd_pcm_substream *substream)
1799 {
1800 	hda_nid_t cvt_nid = hinfo->nid;
1801 	struct hdmi_spec *spec = codec->spec;
1802 	int pin_idx = hinfo_to_pin_index(codec, hinfo);
1803 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1804 	hda_nid_t pin_nid = per_pin->pin_nid;
1805 	struct snd_pcm_runtime *runtime = substream->runtime;
1806 	struct i915_audio_component *acomp = codec->bus->core.audio_component;
1807 	bool non_pcm;
1808 	int pinctl;
1809 
1810 	if (is_haswell_plus(codec) || is_valleyview_plus(codec)) {
1811 		/* Verify pin:cvt selections to avoid silent audio after S3.
1812 		 * After S3, the audio driver restores pin:cvt selections
1813 		 * but this can happen before gfx is ready and such selection
1814 		 * is overlooked by HW. Thus multiple pins can share a same
1815 		 * default convertor and mute control will affect each other,
1816 		 * which can cause a resumed audio playback become silent
1817 		 * after S3.
1818 		 */
1819 		intel_verify_pin_cvt_connect(codec, per_pin);
1820 		intel_not_share_assigned_cvt(codec, pin_nid, per_pin->mux_idx);
1821 	}
1822 
1823 	/* Call sync_audio_rate to set the N/CTS/M manually if necessary */
1824 	/* Todo: add DP1.2 MST audio support later */
1825 	if (acomp && acomp->ops && acomp->ops->sync_audio_rate)
1826 		acomp->ops->sync_audio_rate(acomp->dev,
1827 				intel_pin2port(pin_nid),
1828 				runtime->rate);
1829 
1830 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1831 	mutex_lock(&per_pin->lock);
1832 	per_pin->channels = substream->runtime->channels;
1833 	per_pin->setup = true;
1834 
1835 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1836 	mutex_unlock(&per_pin->lock);
1837 
1838 	if (spec->dyn_pin_out) {
1839 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1840 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1841 		snd_hda_codec_write(codec, pin_nid, 0,
1842 				    AC_VERB_SET_PIN_WIDGET_CONTROL,
1843 				    pinctl | PIN_OUT);
1844 	}
1845 
1846 	return spec->ops.setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
1847 }
1848 
1849 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1850 					     struct hda_codec *codec,
1851 					     struct snd_pcm_substream *substream)
1852 {
1853 	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1854 	return 0;
1855 }
1856 
1857 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
1858 			  struct hda_codec *codec,
1859 			  struct snd_pcm_substream *substream)
1860 {
1861 	struct hdmi_spec *spec = codec->spec;
1862 	int cvt_idx, pin_idx;
1863 	struct hdmi_spec_per_cvt *per_cvt;
1864 	struct hdmi_spec_per_pin *per_pin;
1865 	int pinctl;
1866 
1867 	if (hinfo->nid) {
1868 		cvt_idx = cvt_nid_to_cvt_index(codec, hinfo->nid);
1869 		if (snd_BUG_ON(cvt_idx < 0))
1870 			return -EINVAL;
1871 		per_cvt = get_cvt(spec, cvt_idx);
1872 
1873 		snd_BUG_ON(!per_cvt->assigned);
1874 		per_cvt->assigned = 0;
1875 		hinfo->nid = 0;
1876 
1877 		pin_idx = hinfo_to_pin_index(codec, hinfo);
1878 		if (snd_BUG_ON(pin_idx < 0))
1879 			return -EINVAL;
1880 		per_pin = get_pin(spec, pin_idx);
1881 
1882 		if (spec->dyn_pin_out) {
1883 			pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
1884 					AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1885 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
1886 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
1887 					    pinctl & ~PIN_OUT);
1888 		}
1889 
1890 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
1891 
1892 		mutex_lock(&per_pin->lock);
1893 		per_pin->chmap_set = false;
1894 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1895 
1896 		per_pin->setup = false;
1897 		per_pin->channels = 0;
1898 		mutex_unlock(&per_pin->lock);
1899 	}
1900 
1901 	return 0;
1902 }
1903 
1904 static const struct hda_pcm_ops generic_ops = {
1905 	.open = hdmi_pcm_open,
1906 	.close = hdmi_pcm_close,
1907 	.prepare = generic_hdmi_playback_pcm_prepare,
1908 	.cleanup = generic_hdmi_playback_pcm_cleanup,
1909 };
1910 
1911 /*
1912  * ALSA API channel-map control callbacks
1913  */
1914 static int hdmi_chmap_ctl_info(struct snd_kcontrol *kcontrol,
1915 			       struct snd_ctl_elem_info *uinfo)
1916 {
1917 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1918 	struct hda_codec *codec = info->private_data;
1919 	struct hdmi_spec *spec = codec->spec;
1920 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1921 	uinfo->count = spec->channels_max;
1922 	uinfo->value.integer.min = 0;
1923 	uinfo->value.integer.max = SNDRV_CHMAP_LAST;
1924 	return 0;
1925 }
1926 
1927 static int hdmi_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
1928 						  int channels)
1929 {
1930 	/* If the speaker allocation matches the channel count, it is OK.*/
1931 	if (cap->channels != channels)
1932 		return -1;
1933 
1934 	/* all channels are remappable freely */
1935 	return SNDRV_CTL_TLVT_CHMAP_VAR;
1936 }
1937 
1938 static void hdmi_cea_alloc_to_tlv_chmap(struct cea_channel_speaker_allocation *cap,
1939 					unsigned int *chmap, int channels)
1940 {
1941 	int count = 0;
1942 	int c;
1943 
1944 	for (c = 7; c >= 0; c--) {
1945 		int spk = cap->speakers[c];
1946 		if (!spk)
1947 			continue;
1948 
1949 		chmap[count++] = spk_to_chmap(spk);
1950 	}
1951 
1952 	WARN_ON(count != channels);
1953 }
1954 
1955 static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
1956 			      unsigned int size, unsigned int __user *tlv)
1957 {
1958 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
1959 	struct hda_codec *codec = info->private_data;
1960 	struct hdmi_spec *spec = codec->spec;
1961 	unsigned int __user *dst;
1962 	int chs, count = 0;
1963 
1964 	if (size < 8)
1965 		return -ENOMEM;
1966 	if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
1967 		return -EFAULT;
1968 	size -= 8;
1969 	dst = tlv + 2;
1970 	for (chs = 2; chs <= spec->channels_max; chs++) {
1971 		int i;
1972 		struct cea_channel_speaker_allocation *cap;
1973 		cap = channel_allocations;
1974 		for (i = 0; i < ARRAY_SIZE(channel_allocations); i++, cap++) {
1975 			int chs_bytes = chs * 4;
1976 			int type = spec->ops.chmap_cea_alloc_validate_get_type(cap, chs);
1977 			unsigned int tlv_chmap[8];
1978 
1979 			if (type < 0)
1980 				continue;
1981 			if (size < 8)
1982 				return -ENOMEM;
1983 			if (put_user(type, dst) ||
1984 			    put_user(chs_bytes, dst + 1))
1985 				return -EFAULT;
1986 			dst += 2;
1987 			size -= 8;
1988 			count += 8;
1989 			if (size < chs_bytes)
1990 				return -ENOMEM;
1991 			size -= chs_bytes;
1992 			count += chs_bytes;
1993 			spec->ops.cea_alloc_to_tlv_chmap(cap, tlv_chmap, chs);
1994 			if (copy_to_user(dst, tlv_chmap, chs_bytes))
1995 				return -EFAULT;
1996 			dst += chs;
1997 		}
1998 	}
1999 	if (put_user(count, tlv + 1))
2000 		return -EFAULT;
2001 	return 0;
2002 }
2003 
2004 static int hdmi_chmap_ctl_get(struct snd_kcontrol *kcontrol,
2005 			      struct snd_ctl_elem_value *ucontrol)
2006 {
2007 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
2008 	struct hda_codec *codec = info->private_data;
2009 	struct hdmi_spec *spec = codec->spec;
2010 	int pin_idx = kcontrol->private_value;
2011 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2012 	int i;
2013 
2014 	for (i = 0; i < ARRAY_SIZE(per_pin->chmap); i++)
2015 		ucontrol->value.integer.value[i] = per_pin->chmap[i];
2016 	return 0;
2017 }
2018 
2019 static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
2020 			      struct snd_ctl_elem_value *ucontrol)
2021 {
2022 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
2023 	struct hda_codec *codec = info->private_data;
2024 	struct hdmi_spec *spec = codec->spec;
2025 	int pin_idx = kcontrol->private_value;
2026 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2027 	unsigned int ctl_idx;
2028 	struct snd_pcm_substream *substream;
2029 	unsigned char chmap[8];
2030 	int i, err, ca, prepared = 0;
2031 
2032 	ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
2033 	substream = snd_pcm_chmap_substream(info, ctl_idx);
2034 	if (!substream || !substream->runtime)
2035 		return 0; /* just for avoiding error from alsactl restore */
2036 	switch (substream->runtime->status->state) {
2037 	case SNDRV_PCM_STATE_OPEN:
2038 	case SNDRV_PCM_STATE_SETUP:
2039 		break;
2040 	case SNDRV_PCM_STATE_PREPARED:
2041 		prepared = 1;
2042 		break;
2043 	default:
2044 		return -EBUSY;
2045 	}
2046 	memset(chmap, 0, sizeof(chmap));
2047 	for (i = 0; i < ARRAY_SIZE(chmap); i++)
2048 		chmap[i] = ucontrol->value.integer.value[i];
2049 	if (!memcmp(chmap, per_pin->chmap, sizeof(chmap)))
2050 		return 0;
2051 	ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap);
2052 	if (ca < 0)
2053 		return -EINVAL;
2054 	if (spec->ops.chmap_validate) {
2055 		err = spec->ops.chmap_validate(ca, ARRAY_SIZE(chmap), chmap);
2056 		if (err)
2057 			return err;
2058 	}
2059 	mutex_lock(&per_pin->lock);
2060 	per_pin->chmap_set = true;
2061 	memcpy(per_pin->chmap, chmap, sizeof(chmap));
2062 	if (prepared)
2063 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
2064 	mutex_unlock(&per_pin->lock);
2065 
2066 	return 0;
2067 }
2068 
2069 static int generic_hdmi_build_pcms(struct hda_codec *codec)
2070 {
2071 	struct hdmi_spec *spec = codec->spec;
2072 	int pin_idx;
2073 
2074 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2075 		struct hda_pcm *info;
2076 		struct hda_pcm_stream *pstr;
2077 
2078 		info = snd_hda_codec_pcm_new(codec, "HDMI %d", pin_idx);
2079 		if (!info)
2080 			return -ENOMEM;
2081 		spec->pcm_rec[pin_idx] = info;
2082 		info->pcm_type = HDA_PCM_TYPE_HDMI;
2083 		info->own_chmap = true;
2084 
2085 		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2086 		pstr->substreams = 1;
2087 		pstr->ops = generic_ops;
2088 		/* other pstr fields are set in open */
2089 	}
2090 
2091 	return 0;
2092 }
2093 
2094 static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
2095 {
2096 	char hdmi_str[32] = "HDMI/DP";
2097 	struct hdmi_spec *spec = codec->spec;
2098 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2099 	int pcmdev = get_pcm_rec(spec, pin_idx)->device;
2100 	bool phantom_jack;
2101 
2102 	if (pcmdev > 0)
2103 		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
2104 	phantom_jack = !is_jack_detectable(codec, per_pin->pin_nid);
2105 	if (phantom_jack)
2106 		strncat(hdmi_str, " Phantom",
2107 			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
2108 
2109 	return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str,
2110 				     phantom_jack);
2111 }
2112 
2113 static int generic_hdmi_build_controls(struct hda_codec *codec)
2114 {
2115 	struct hdmi_spec *spec = codec->spec;
2116 	int err;
2117 	int pin_idx;
2118 
2119 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2120 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2121 
2122 		err = generic_hdmi_build_jack(codec, pin_idx);
2123 		if (err < 0)
2124 			return err;
2125 
2126 		err = snd_hda_create_dig_out_ctls(codec,
2127 						  per_pin->pin_nid,
2128 						  per_pin->mux_nids[0],
2129 						  HDA_PCM_TYPE_HDMI);
2130 		if (err < 0)
2131 			return err;
2132 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
2133 
2134 		/* add control for ELD Bytes */
2135 		err = hdmi_create_eld_ctl(codec, pin_idx,
2136 					  get_pcm_rec(spec, pin_idx)->device);
2137 
2138 		if (err < 0)
2139 			return err;
2140 
2141 		hdmi_present_sense(per_pin, 0);
2142 	}
2143 
2144 	/* add channel maps */
2145 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2146 		struct hda_pcm *pcm;
2147 		struct snd_pcm_chmap *chmap;
2148 		struct snd_kcontrol *kctl;
2149 		int i;
2150 
2151 		pcm = spec->pcm_rec[pin_idx];
2152 		if (!pcm || !pcm->pcm)
2153 			break;
2154 		err = snd_pcm_add_chmap_ctls(pcm->pcm,
2155 					     SNDRV_PCM_STREAM_PLAYBACK,
2156 					     NULL, 0, pin_idx, &chmap);
2157 		if (err < 0)
2158 			return err;
2159 		/* override handlers */
2160 		chmap->private_data = codec;
2161 		kctl = chmap->kctl;
2162 		for (i = 0; i < kctl->count; i++)
2163 			kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
2164 		kctl->info = hdmi_chmap_ctl_info;
2165 		kctl->get = hdmi_chmap_ctl_get;
2166 		kctl->put = hdmi_chmap_ctl_put;
2167 		kctl->tlv.c = hdmi_chmap_ctl_tlv;
2168 	}
2169 
2170 	return 0;
2171 }
2172 
2173 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
2174 {
2175 	struct hdmi_spec *spec = codec->spec;
2176 	int pin_idx;
2177 
2178 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2179 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2180 
2181 		per_pin->codec = codec;
2182 		mutex_init(&per_pin->lock);
2183 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
2184 		eld_proc_new(per_pin, pin_idx);
2185 	}
2186 	return 0;
2187 }
2188 
2189 static int generic_hdmi_init(struct hda_codec *codec)
2190 {
2191 	struct hdmi_spec *spec = codec->spec;
2192 	int pin_idx;
2193 
2194 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2195 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2196 		hda_nid_t pin_nid = per_pin->pin_nid;
2197 
2198 		hdmi_init_pin(codec, pin_nid);
2199 		snd_hda_jack_detect_enable_callback(codec, pin_nid,
2200 			codec->jackpoll_interval > 0 ? jack_callback : NULL);
2201 	}
2202 	return 0;
2203 }
2204 
2205 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
2206 {
2207 	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
2208 	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
2209 }
2210 
2211 static void hdmi_array_free(struct hdmi_spec *spec)
2212 {
2213 	snd_array_free(&spec->pins);
2214 	snd_array_free(&spec->cvts);
2215 }
2216 
2217 static void generic_hdmi_free(struct hda_codec *codec)
2218 {
2219 	struct hdmi_spec *spec = codec->spec;
2220 	int pin_idx;
2221 
2222 	if (is_haswell_plus(codec) || is_valleyview_plus(codec))
2223 		snd_hdac_i915_register_notifier(NULL);
2224 
2225 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2226 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2227 
2228 		cancel_delayed_work_sync(&per_pin->work);
2229 		eld_proc_free(per_pin);
2230 	}
2231 
2232 	hdmi_array_free(spec);
2233 	kfree(spec);
2234 }
2235 
2236 #ifdef CONFIG_PM
2237 static int generic_hdmi_resume(struct hda_codec *codec)
2238 {
2239 	struct hdmi_spec *spec = codec->spec;
2240 	int pin_idx;
2241 
2242 	codec->patch_ops.init(codec);
2243 	regcache_sync(codec->core.regmap);
2244 
2245 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2246 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2247 		hdmi_present_sense(per_pin, 1);
2248 	}
2249 	return 0;
2250 }
2251 #endif
2252 
2253 static const struct hda_codec_ops generic_hdmi_patch_ops = {
2254 	.init			= generic_hdmi_init,
2255 	.free			= generic_hdmi_free,
2256 	.build_pcms		= generic_hdmi_build_pcms,
2257 	.build_controls		= generic_hdmi_build_controls,
2258 	.unsol_event		= hdmi_unsol_event,
2259 #ifdef CONFIG_PM
2260 	.resume			= generic_hdmi_resume,
2261 #endif
2262 };
2263 
2264 static const struct hdmi_ops generic_standard_hdmi_ops = {
2265 	.pin_get_eld				= snd_hdmi_get_eld,
2266 	.pin_get_slot_channel			= hdmi_pin_get_slot_channel,
2267 	.pin_set_slot_channel			= hdmi_pin_set_slot_channel,
2268 	.pin_setup_infoframe			= hdmi_pin_setup_infoframe,
2269 	.pin_hbr_setup				= hdmi_pin_hbr_setup,
2270 	.setup_stream				= hdmi_setup_stream,
2271 	.chmap_cea_alloc_validate_get_type	= hdmi_chmap_cea_alloc_validate_get_type,
2272 	.cea_alloc_to_tlv_chmap			= hdmi_cea_alloc_to_tlv_chmap,
2273 };
2274 
2275 
2276 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
2277 					     hda_nid_t nid)
2278 {
2279 	struct hdmi_spec *spec = codec->spec;
2280 	hda_nid_t conns[4];
2281 	int nconns;
2282 
2283 	nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
2284 	if (nconns == spec->num_cvts &&
2285 	    !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
2286 		return;
2287 
2288 	/* override pins connection list */
2289 	codec_dbg(codec, "hdmi: haswell: override pin connection 0x%x\n", nid);
2290 	snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
2291 }
2292 
2293 #define INTEL_VENDOR_NID 0x08
2294 #define INTEL_GET_VENDOR_VERB 0xf81
2295 #define INTEL_SET_VENDOR_VERB 0x781
2296 #define INTEL_EN_DP12			0x02 /* enable DP 1.2 features */
2297 #define INTEL_EN_ALL_PIN_CVTS	0x01 /* enable 2nd & 3rd pins and convertors */
2298 
2299 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
2300 					  bool update_tree)
2301 {
2302 	unsigned int vendor_param;
2303 
2304 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2305 				INTEL_GET_VENDOR_VERB, 0);
2306 	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
2307 		return;
2308 
2309 	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
2310 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2311 				INTEL_SET_VENDOR_VERB, vendor_param);
2312 	if (vendor_param == -1)
2313 		return;
2314 
2315 	if (update_tree)
2316 		snd_hda_codec_update_widgets(codec);
2317 }
2318 
2319 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
2320 {
2321 	unsigned int vendor_param;
2322 
2323 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2324 				INTEL_GET_VENDOR_VERB, 0);
2325 	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
2326 		return;
2327 
2328 	/* enable DP1.2 mode */
2329 	vendor_param |= INTEL_EN_DP12;
2330 	snd_hdac_regmap_add_vendor_verb(&codec->core, INTEL_SET_VENDOR_VERB);
2331 	snd_hda_codec_write_cache(codec, INTEL_VENDOR_NID, 0,
2332 				INTEL_SET_VENDOR_VERB, vendor_param);
2333 }
2334 
2335 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
2336  * Otherwise you may get severe h/w communication errors.
2337  */
2338 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2339 				unsigned int power_state)
2340 {
2341 	if (power_state == AC_PWRST_D0) {
2342 		intel_haswell_enable_all_pins(codec, false);
2343 		intel_haswell_fixup_enable_dp12(codec);
2344 	}
2345 
2346 	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
2347 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
2348 }
2349 
2350 static void intel_pin_eld_notify(void *audio_ptr, int port)
2351 {
2352 	struct hda_codec *codec = audio_ptr;
2353 	int pin_nid = port + 0x04;
2354 
2355 	/* skip notification during system suspend (but not in runtime PM);
2356 	 * the state will be updated at resume
2357 	 */
2358 	if (snd_power_get_state(codec->card) != SNDRV_CTL_POWER_D0)
2359 		return;
2360 
2361 	check_presence_and_report(codec, pin_nid);
2362 }
2363 
2364 static int patch_generic_hdmi(struct hda_codec *codec)
2365 {
2366 	struct hdmi_spec *spec;
2367 
2368 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2369 	if (spec == NULL)
2370 		return -ENOMEM;
2371 
2372 	spec->ops = generic_standard_hdmi_ops;
2373 	codec->spec = spec;
2374 	hdmi_array_init(spec, 4);
2375 
2376 	if (is_haswell_plus(codec)) {
2377 		intel_haswell_enable_all_pins(codec, true);
2378 		intel_haswell_fixup_enable_dp12(codec);
2379 	}
2380 
2381 	/* For Valleyview/Cherryview, only the display codec is in the display
2382 	 * power well and can use link_power ops to request/release the power.
2383 	 * For Haswell/Broadwell, the controller is also in the power well and
2384 	 * can cover the codec power request, and so need not set this flag.
2385 	 * For previous platforms, there is no such power well feature.
2386 	 */
2387 	if (is_valleyview_plus(codec) || is_skylake(codec) ||
2388 			is_broxton(codec))
2389 		codec->core.link_power_control = 1;
2390 
2391 	if (is_haswell_plus(codec) || is_valleyview_plus(codec)) {
2392 		codec->depop_delay = 0;
2393 		spec->i915_audio_ops.audio_ptr = codec;
2394 		spec->i915_audio_ops.pin_eld_notify = intel_pin_eld_notify;
2395 		snd_hdac_i915_register_notifier(&spec->i915_audio_ops);
2396 	}
2397 
2398 	if (hdmi_parse_codec(codec) < 0) {
2399 		codec->spec = NULL;
2400 		kfree(spec);
2401 		return -EINVAL;
2402 	}
2403 	codec->patch_ops = generic_hdmi_patch_ops;
2404 	if (is_haswell_plus(codec)) {
2405 		codec->patch_ops.set_power_state = haswell_set_power_state;
2406 		codec->dp_mst = true;
2407 	}
2408 
2409 	/* Enable runtime pm for HDMI audio codec of HSW/BDW/SKL/BYT/BSW */
2410 	if (is_haswell_plus(codec) || is_valleyview_plus(codec))
2411 		codec->auto_runtime_pm = 1;
2412 
2413 	generic_hdmi_init_per_pins(codec);
2414 
2415 	init_channel_allocations();
2416 
2417 	return 0;
2418 }
2419 
2420 /*
2421  * Shared non-generic implementations
2422  */
2423 
2424 static int simple_playback_build_pcms(struct hda_codec *codec)
2425 {
2426 	struct hdmi_spec *spec = codec->spec;
2427 	struct hda_pcm *info;
2428 	unsigned int chans;
2429 	struct hda_pcm_stream *pstr;
2430 	struct hdmi_spec_per_cvt *per_cvt;
2431 
2432 	per_cvt = get_cvt(spec, 0);
2433 	chans = get_wcaps(codec, per_cvt->cvt_nid);
2434 	chans = get_wcaps_channels(chans);
2435 
2436 	info = snd_hda_codec_pcm_new(codec, "HDMI 0");
2437 	if (!info)
2438 		return -ENOMEM;
2439 	spec->pcm_rec[0] = info;
2440 	info->pcm_type = HDA_PCM_TYPE_HDMI;
2441 	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2442 	*pstr = spec->pcm_playback;
2443 	pstr->nid = per_cvt->cvt_nid;
2444 	if (pstr->channels_max <= 2 && chans && chans <= 16)
2445 		pstr->channels_max = chans;
2446 
2447 	return 0;
2448 }
2449 
2450 /* unsolicited event for jack sensing */
2451 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2452 				    unsigned int res)
2453 {
2454 	snd_hda_jack_set_dirty_all(codec);
2455 	snd_hda_jack_report_sync(codec);
2456 }
2457 
2458 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2459  * as long as spec->pins[] is set correctly
2460  */
2461 #define simple_hdmi_build_jack	generic_hdmi_build_jack
2462 
2463 static int simple_playback_build_controls(struct hda_codec *codec)
2464 {
2465 	struct hdmi_spec *spec = codec->spec;
2466 	struct hdmi_spec_per_cvt *per_cvt;
2467 	int err;
2468 
2469 	per_cvt = get_cvt(spec, 0);
2470 	err = snd_hda_create_dig_out_ctls(codec, per_cvt->cvt_nid,
2471 					  per_cvt->cvt_nid,
2472 					  HDA_PCM_TYPE_HDMI);
2473 	if (err < 0)
2474 		return err;
2475 	return simple_hdmi_build_jack(codec, 0);
2476 }
2477 
2478 static int simple_playback_init(struct hda_codec *codec)
2479 {
2480 	struct hdmi_spec *spec = codec->spec;
2481 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2482 	hda_nid_t pin = per_pin->pin_nid;
2483 
2484 	snd_hda_codec_write(codec, pin, 0,
2485 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2486 	/* some codecs require to unmute the pin */
2487 	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2488 		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2489 				    AMP_OUT_UNMUTE);
2490 	snd_hda_jack_detect_enable(codec, pin);
2491 	return 0;
2492 }
2493 
2494 static void simple_playback_free(struct hda_codec *codec)
2495 {
2496 	struct hdmi_spec *spec = codec->spec;
2497 
2498 	hdmi_array_free(spec);
2499 	kfree(spec);
2500 }
2501 
2502 /*
2503  * Nvidia specific implementations
2504  */
2505 
2506 #define Nv_VERB_SET_Channel_Allocation          0xF79
2507 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2508 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2509 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2510 
2511 #define nvhdmi_master_con_nid_7x	0x04
2512 #define nvhdmi_master_pin_nid_7x	0x05
2513 
2514 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2515 	/*front, rear, clfe, rear_surr */
2516 	0x6, 0x8, 0xa, 0xc,
2517 };
2518 
2519 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2520 	/* set audio protect on */
2521 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2522 	/* enable digital output on pin widget */
2523 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2524 	{} /* terminator */
2525 };
2526 
2527 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2528 	/* set audio protect on */
2529 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2530 	/* enable digital output on pin widget */
2531 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2532 	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2533 	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2534 	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2535 	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2536 	{} /* terminator */
2537 };
2538 
2539 #ifdef LIMITED_RATE_FMT_SUPPORT
2540 /* support only the safe format and rate */
2541 #define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
2542 #define SUPPORTED_MAXBPS	16
2543 #define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
2544 #else
2545 /* support all rates and formats */
2546 #define SUPPORTED_RATES \
2547 	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2548 	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2549 	 SNDRV_PCM_RATE_192000)
2550 #define SUPPORTED_MAXBPS	24
2551 #define SUPPORTED_FORMATS \
2552 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2553 #endif
2554 
2555 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2556 {
2557 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2558 	return 0;
2559 }
2560 
2561 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2562 {
2563 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2564 	return 0;
2565 }
2566 
2567 static unsigned int channels_2_6_8[] = {
2568 	2, 6, 8
2569 };
2570 
2571 static unsigned int channels_2_8[] = {
2572 	2, 8
2573 };
2574 
2575 static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2576 	.count = ARRAY_SIZE(channels_2_6_8),
2577 	.list = channels_2_6_8,
2578 	.mask = 0,
2579 };
2580 
2581 static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2582 	.count = ARRAY_SIZE(channels_2_8),
2583 	.list = channels_2_8,
2584 	.mask = 0,
2585 };
2586 
2587 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2588 				    struct hda_codec *codec,
2589 				    struct snd_pcm_substream *substream)
2590 {
2591 	struct hdmi_spec *spec = codec->spec;
2592 	struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2593 
2594 	switch (codec->preset->vendor_id) {
2595 	case 0x10de0002:
2596 	case 0x10de0003:
2597 	case 0x10de0005:
2598 	case 0x10de0006:
2599 		hw_constraints_channels = &hw_constraints_2_8_channels;
2600 		break;
2601 	case 0x10de0007:
2602 		hw_constraints_channels = &hw_constraints_2_6_8_channels;
2603 		break;
2604 	default:
2605 		break;
2606 	}
2607 
2608 	if (hw_constraints_channels != NULL) {
2609 		snd_pcm_hw_constraint_list(substream->runtime, 0,
2610 				SNDRV_PCM_HW_PARAM_CHANNELS,
2611 				hw_constraints_channels);
2612 	} else {
2613 		snd_pcm_hw_constraint_step(substream->runtime, 0,
2614 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2615 	}
2616 
2617 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2618 }
2619 
2620 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2621 				     struct hda_codec *codec,
2622 				     struct snd_pcm_substream *substream)
2623 {
2624 	struct hdmi_spec *spec = codec->spec;
2625 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2626 }
2627 
2628 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2629 				       struct hda_codec *codec,
2630 				       unsigned int stream_tag,
2631 				       unsigned int format,
2632 				       struct snd_pcm_substream *substream)
2633 {
2634 	struct hdmi_spec *spec = codec->spec;
2635 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2636 					     stream_tag, format, substream);
2637 }
2638 
2639 static const struct hda_pcm_stream simple_pcm_playback = {
2640 	.substreams = 1,
2641 	.channels_min = 2,
2642 	.channels_max = 2,
2643 	.ops = {
2644 		.open = simple_playback_pcm_open,
2645 		.close = simple_playback_pcm_close,
2646 		.prepare = simple_playback_pcm_prepare
2647 	},
2648 };
2649 
2650 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2651 	.build_controls = simple_playback_build_controls,
2652 	.build_pcms = simple_playback_build_pcms,
2653 	.init = simple_playback_init,
2654 	.free = simple_playback_free,
2655 	.unsol_event = simple_hdmi_unsol_event,
2656 };
2657 
2658 static int patch_simple_hdmi(struct hda_codec *codec,
2659 			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
2660 {
2661 	struct hdmi_spec *spec;
2662 	struct hdmi_spec_per_cvt *per_cvt;
2663 	struct hdmi_spec_per_pin *per_pin;
2664 
2665 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2666 	if (!spec)
2667 		return -ENOMEM;
2668 
2669 	codec->spec = spec;
2670 	hdmi_array_init(spec, 1);
2671 
2672 	spec->multiout.num_dacs = 0;  /* no analog */
2673 	spec->multiout.max_channels = 2;
2674 	spec->multiout.dig_out_nid = cvt_nid;
2675 	spec->num_cvts = 1;
2676 	spec->num_pins = 1;
2677 	per_pin = snd_array_new(&spec->pins);
2678 	per_cvt = snd_array_new(&spec->cvts);
2679 	if (!per_pin || !per_cvt) {
2680 		simple_playback_free(codec);
2681 		return -ENOMEM;
2682 	}
2683 	per_cvt->cvt_nid = cvt_nid;
2684 	per_pin->pin_nid = pin_nid;
2685 	spec->pcm_playback = simple_pcm_playback;
2686 
2687 	codec->patch_ops = simple_hdmi_patch_ops;
2688 
2689 	return 0;
2690 }
2691 
2692 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2693 						    int channels)
2694 {
2695 	unsigned int chanmask;
2696 	int chan = channels ? (channels - 1) : 1;
2697 
2698 	switch (channels) {
2699 	default:
2700 	case 0:
2701 	case 2:
2702 		chanmask = 0x00;
2703 		break;
2704 	case 4:
2705 		chanmask = 0x08;
2706 		break;
2707 	case 6:
2708 		chanmask = 0x0b;
2709 		break;
2710 	case 8:
2711 		chanmask = 0x13;
2712 		break;
2713 	}
2714 
2715 	/* Set the audio infoframe channel allocation and checksum fields.  The
2716 	 * channel count is computed implicitly by the hardware. */
2717 	snd_hda_codec_write(codec, 0x1, 0,
2718 			Nv_VERB_SET_Channel_Allocation, chanmask);
2719 
2720 	snd_hda_codec_write(codec, 0x1, 0,
2721 			Nv_VERB_SET_Info_Frame_Checksum,
2722 			(0x71 - chan - chanmask));
2723 }
2724 
2725 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
2726 				   struct hda_codec *codec,
2727 				   struct snd_pcm_substream *substream)
2728 {
2729 	struct hdmi_spec *spec = codec->spec;
2730 	int i;
2731 
2732 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
2733 			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
2734 	for (i = 0; i < 4; i++) {
2735 		/* set the stream id */
2736 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2737 				AC_VERB_SET_CHANNEL_STREAMID, 0);
2738 		/* set the stream format */
2739 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2740 				AC_VERB_SET_STREAM_FORMAT, 0);
2741 	}
2742 
2743 	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
2744 	 * streams are disabled. */
2745 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2746 
2747 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2748 }
2749 
2750 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
2751 				     struct hda_codec *codec,
2752 				     unsigned int stream_tag,
2753 				     unsigned int format,
2754 				     struct snd_pcm_substream *substream)
2755 {
2756 	int chs;
2757 	unsigned int dataDCC2, channel_id;
2758 	int i;
2759 	struct hdmi_spec *spec = codec->spec;
2760 	struct hda_spdif_out *spdif;
2761 	struct hdmi_spec_per_cvt *per_cvt;
2762 
2763 	mutex_lock(&codec->spdif_mutex);
2764 	per_cvt = get_cvt(spec, 0);
2765 	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
2766 
2767 	chs = substream->runtime->channels;
2768 
2769 	dataDCC2 = 0x2;
2770 
2771 	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2772 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
2773 		snd_hda_codec_write(codec,
2774 				nvhdmi_master_con_nid_7x,
2775 				0,
2776 				AC_VERB_SET_DIGI_CONVERT_1,
2777 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2778 
2779 	/* set the stream id */
2780 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2781 			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
2782 
2783 	/* set the stream format */
2784 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2785 			AC_VERB_SET_STREAM_FORMAT, format);
2786 
2787 	/* turn on again (if needed) */
2788 	/* enable and set the channel status audio/data flag */
2789 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
2790 		snd_hda_codec_write(codec,
2791 				nvhdmi_master_con_nid_7x,
2792 				0,
2793 				AC_VERB_SET_DIGI_CONVERT_1,
2794 				spdif->ctls & 0xff);
2795 		snd_hda_codec_write(codec,
2796 				nvhdmi_master_con_nid_7x,
2797 				0,
2798 				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2799 	}
2800 
2801 	for (i = 0; i < 4; i++) {
2802 		if (chs == 2)
2803 			channel_id = 0;
2804 		else
2805 			channel_id = i * 2;
2806 
2807 		/* turn off SPDIF once;
2808 		 *otherwise the IEC958 bits won't be updated
2809 		 */
2810 		if (codec->spdif_status_reset &&
2811 		(spdif->ctls & AC_DIG1_ENABLE))
2812 			snd_hda_codec_write(codec,
2813 				nvhdmi_con_nids_7x[i],
2814 				0,
2815 				AC_VERB_SET_DIGI_CONVERT_1,
2816 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2817 		/* set the stream id */
2818 		snd_hda_codec_write(codec,
2819 				nvhdmi_con_nids_7x[i],
2820 				0,
2821 				AC_VERB_SET_CHANNEL_STREAMID,
2822 				(stream_tag << 4) | channel_id);
2823 		/* set the stream format */
2824 		snd_hda_codec_write(codec,
2825 				nvhdmi_con_nids_7x[i],
2826 				0,
2827 				AC_VERB_SET_STREAM_FORMAT,
2828 				format);
2829 		/* turn on again (if needed) */
2830 		/* enable and set the channel status audio/data flag */
2831 		if (codec->spdif_status_reset &&
2832 		(spdif->ctls & AC_DIG1_ENABLE)) {
2833 			snd_hda_codec_write(codec,
2834 					nvhdmi_con_nids_7x[i],
2835 					0,
2836 					AC_VERB_SET_DIGI_CONVERT_1,
2837 					spdif->ctls & 0xff);
2838 			snd_hda_codec_write(codec,
2839 					nvhdmi_con_nids_7x[i],
2840 					0,
2841 					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2842 		}
2843 	}
2844 
2845 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
2846 
2847 	mutex_unlock(&codec->spdif_mutex);
2848 	return 0;
2849 }
2850 
2851 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
2852 	.substreams = 1,
2853 	.channels_min = 2,
2854 	.channels_max = 8,
2855 	.nid = nvhdmi_master_con_nid_7x,
2856 	.rates = SUPPORTED_RATES,
2857 	.maxbps = SUPPORTED_MAXBPS,
2858 	.formats = SUPPORTED_FORMATS,
2859 	.ops = {
2860 		.open = simple_playback_pcm_open,
2861 		.close = nvhdmi_8ch_7x_pcm_close,
2862 		.prepare = nvhdmi_8ch_7x_pcm_prepare
2863 	},
2864 };
2865 
2866 static int patch_nvhdmi_2ch(struct hda_codec *codec)
2867 {
2868 	struct hdmi_spec *spec;
2869 	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
2870 				    nvhdmi_master_pin_nid_7x);
2871 	if (err < 0)
2872 		return err;
2873 
2874 	codec->patch_ops.init = nvhdmi_7x_init_2ch;
2875 	/* override the PCM rates, etc, as the codec doesn't give full list */
2876 	spec = codec->spec;
2877 	spec->pcm_playback.rates = SUPPORTED_RATES;
2878 	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
2879 	spec->pcm_playback.formats = SUPPORTED_FORMATS;
2880 	return 0;
2881 }
2882 
2883 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
2884 {
2885 	struct hdmi_spec *spec = codec->spec;
2886 	int err = simple_playback_build_pcms(codec);
2887 	if (!err) {
2888 		struct hda_pcm *info = get_pcm_rec(spec, 0);
2889 		info->own_chmap = true;
2890 	}
2891 	return err;
2892 }
2893 
2894 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
2895 {
2896 	struct hdmi_spec *spec = codec->spec;
2897 	struct hda_pcm *info;
2898 	struct snd_pcm_chmap *chmap;
2899 	int err;
2900 
2901 	err = simple_playback_build_controls(codec);
2902 	if (err < 0)
2903 		return err;
2904 
2905 	/* add channel maps */
2906 	info = get_pcm_rec(spec, 0);
2907 	err = snd_pcm_add_chmap_ctls(info->pcm,
2908 				     SNDRV_PCM_STREAM_PLAYBACK,
2909 				     snd_pcm_alt_chmaps, 8, 0, &chmap);
2910 	if (err < 0)
2911 		return err;
2912 	switch (codec->preset->vendor_id) {
2913 	case 0x10de0002:
2914 	case 0x10de0003:
2915 	case 0x10de0005:
2916 	case 0x10de0006:
2917 		chmap->channel_mask = (1U << 2) | (1U << 8);
2918 		break;
2919 	case 0x10de0007:
2920 		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
2921 	}
2922 	return 0;
2923 }
2924 
2925 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
2926 {
2927 	struct hdmi_spec *spec;
2928 	int err = patch_nvhdmi_2ch(codec);
2929 	if (err < 0)
2930 		return err;
2931 	spec = codec->spec;
2932 	spec->multiout.max_channels = 8;
2933 	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
2934 	codec->patch_ops.init = nvhdmi_7x_init_8ch;
2935 	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
2936 	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
2937 
2938 	/* Initialize the audio infoframe channel mask and checksum to something
2939 	 * valid */
2940 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2941 
2942 	return 0;
2943 }
2944 
2945 /*
2946  * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on:
2947  * - 0x10de0015
2948  * - 0x10de0040
2949  */
2950 static int nvhdmi_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
2951 						    int channels)
2952 {
2953 	if (cap->ca_index == 0x00 && channels == 2)
2954 		return SNDRV_CTL_TLVT_CHMAP_FIXED;
2955 
2956 	return hdmi_chmap_cea_alloc_validate_get_type(cap, channels);
2957 }
2958 
2959 static int nvhdmi_chmap_validate(int ca, int chs, unsigned char *map)
2960 {
2961 	if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR))
2962 		return -EINVAL;
2963 
2964 	return 0;
2965 }
2966 
2967 static int patch_nvhdmi(struct hda_codec *codec)
2968 {
2969 	struct hdmi_spec *spec;
2970 	int err;
2971 
2972 	err = patch_generic_hdmi(codec);
2973 	if (err)
2974 		return err;
2975 
2976 	spec = codec->spec;
2977 	spec->dyn_pin_out = true;
2978 
2979 	spec->ops.chmap_cea_alloc_validate_get_type =
2980 		nvhdmi_chmap_cea_alloc_validate_get_type;
2981 	spec->ops.chmap_validate = nvhdmi_chmap_validate;
2982 
2983 	return 0;
2984 }
2985 
2986 /*
2987  * The HDA codec on NVIDIA Tegra contains two scratch registers that are
2988  * accessed using vendor-defined verbs. These registers can be used for
2989  * interoperability between the HDA and HDMI drivers.
2990  */
2991 
2992 /* Audio Function Group node */
2993 #define NVIDIA_AFG_NID 0x01
2994 
2995 /*
2996  * The SCRATCH0 register is used to notify the HDMI codec of changes in audio
2997  * format. On Tegra, bit 31 is used as a trigger that causes an interrupt to
2998  * be raised in the HDMI codec. The remainder of the bits is arbitrary. This
2999  * implementation stores the HDA format (see AC_FMT_*) in bits [15:0] and an
3000  * additional bit (at position 30) to signal the validity of the format.
3001  *
3002  * | 31      | 30    | 29  16 | 15   0 |
3003  * +---------+-------+--------+--------+
3004  * | TRIGGER | VALID | UNUSED | FORMAT |
3005  * +-----------------------------------|
3006  *
3007  * Note that for the trigger bit to take effect it needs to change value
3008  * (i.e. it needs to be toggled).
3009  */
3010 #define NVIDIA_GET_SCRATCH0		0xfa6
3011 #define NVIDIA_SET_SCRATCH0_BYTE0	0xfa7
3012 #define NVIDIA_SET_SCRATCH0_BYTE1	0xfa8
3013 #define NVIDIA_SET_SCRATCH0_BYTE2	0xfa9
3014 #define NVIDIA_SET_SCRATCH0_BYTE3	0xfaa
3015 #define NVIDIA_SCRATCH_TRIGGER (1 << 7)
3016 #define NVIDIA_SCRATCH_VALID   (1 << 6)
3017 
3018 #define NVIDIA_GET_SCRATCH1		0xfab
3019 #define NVIDIA_SET_SCRATCH1_BYTE0	0xfac
3020 #define NVIDIA_SET_SCRATCH1_BYTE1	0xfad
3021 #define NVIDIA_SET_SCRATCH1_BYTE2	0xfae
3022 #define NVIDIA_SET_SCRATCH1_BYTE3	0xfaf
3023 
3024 /*
3025  * The format parameter is the HDA audio format (see AC_FMT_*). If set to 0,
3026  * the format is invalidated so that the HDMI codec can be disabled.
3027  */
3028 static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
3029 {
3030 	unsigned int value;
3031 
3032 	/* bits [31:30] contain the trigger and valid bits */
3033 	value = snd_hda_codec_read(codec, NVIDIA_AFG_NID, 0,
3034 				   NVIDIA_GET_SCRATCH0, 0);
3035 	value = (value >> 24) & 0xff;
3036 
3037 	/* bits [15:0] are used to store the HDA format */
3038 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3039 			    NVIDIA_SET_SCRATCH0_BYTE0,
3040 			    (format >> 0) & 0xff);
3041 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3042 			    NVIDIA_SET_SCRATCH0_BYTE1,
3043 			    (format >> 8) & 0xff);
3044 
3045 	/* bits [16:24] are unused */
3046 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3047 			    NVIDIA_SET_SCRATCH0_BYTE2, 0);
3048 
3049 	/*
3050 	 * Bit 30 signals that the data is valid and hence that HDMI audio can
3051 	 * be enabled.
3052 	 */
3053 	if (format == 0)
3054 		value &= ~NVIDIA_SCRATCH_VALID;
3055 	else
3056 		value |= NVIDIA_SCRATCH_VALID;
3057 
3058 	/*
3059 	 * Whenever the trigger bit is toggled, an interrupt is raised in the
3060 	 * HDMI codec. The HDMI driver will use that as trigger to update its
3061 	 * configuration.
3062 	 */
3063 	value ^= NVIDIA_SCRATCH_TRIGGER;
3064 
3065 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3066 			    NVIDIA_SET_SCRATCH0_BYTE3, value);
3067 }
3068 
3069 static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
3070 				  struct hda_codec *codec,
3071 				  unsigned int stream_tag,
3072 				  unsigned int format,
3073 				  struct snd_pcm_substream *substream)
3074 {
3075 	int err;
3076 
3077 	err = generic_hdmi_playback_pcm_prepare(hinfo, codec, stream_tag,
3078 						format, substream);
3079 	if (err < 0)
3080 		return err;
3081 
3082 	/* notify the HDMI codec of the format change */
3083 	tegra_hdmi_set_format(codec, format);
3084 
3085 	return 0;
3086 }
3087 
3088 static int tegra_hdmi_pcm_cleanup(struct hda_pcm_stream *hinfo,
3089 				  struct hda_codec *codec,
3090 				  struct snd_pcm_substream *substream)
3091 {
3092 	/* invalidate the format in the HDMI codec */
3093 	tegra_hdmi_set_format(codec, 0);
3094 
3095 	return generic_hdmi_playback_pcm_cleanup(hinfo, codec, substream);
3096 }
3097 
3098 static struct hda_pcm *hda_find_pcm_by_type(struct hda_codec *codec, int type)
3099 {
3100 	struct hdmi_spec *spec = codec->spec;
3101 	unsigned int i;
3102 
3103 	for (i = 0; i < spec->num_pins; i++) {
3104 		struct hda_pcm *pcm = get_pcm_rec(spec, i);
3105 
3106 		if (pcm->pcm_type == type)
3107 			return pcm;
3108 	}
3109 
3110 	return NULL;
3111 }
3112 
3113 static int tegra_hdmi_build_pcms(struct hda_codec *codec)
3114 {
3115 	struct hda_pcm_stream *stream;
3116 	struct hda_pcm *pcm;
3117 	int err;
3118 
3119 	err = generic_hdmi_build_pcms(codec);
3120 	if (err < 0)
3121 		return err;
3122 
3123 	pcm = hda_find_pcm_by_type(codec, HDA_PCM_TYPE_HDMI);
3124 	if (!pcm)
3125 		return -ENODEV;
3126 
3127 	/*
3128 	 * Override ->prepare() and ->cleanup() operations to notify the HDMI
3129 	 * codec about format changes.
3130 	 */
3131 	stream = &pcm->stream[SNDRV_PCM_STREAM_PLAYBACK];
3132 	stream->ops.prepare = tegra_hdmi_pcm_prepare;
3133 	stream->ops.cleanup = tegra_hdmi_pcm_cleanup;
3134 
3135 	return 0;
3136 }
3137 
3138 static int patch_tegra_hdmi(struct hda_codec *codec)
3139 {
3140 	int err;
3141 
3142 	err = patch_generic_hdmi(codec);
3143 	if (err)
3144 		return err;
3145 
3146 	codec->patch_ops.build_pcms = tegra_hdmi_build_pcms;
3147 
3148 	return 0;
3149 }
3150 
3151 /*
3152  * ATI/AMD-specific implementations
3153  */
3154 
3155 #define is_amdhdmi_rev3_or_later(codec) \
3156 	((codec)->core.vendor_id == 0x1002aa01 && \
3157 	 ((codec)->core.revision_id & 0xff00) >= 0x0300)
3158 #define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)
3159 
3160 /* ATI/AMD specific HDA pin verbs, see the AMD HDA Verbs specification */
3161 #define ATI_VERB_SET_CHANNEL_ALLOCATION	0x771
3162 #define ATI_VERB_SET_DOWNMIX_INFO	0x772
3163 #define ATI_VERB_SET_MULTICHANNEL_01	0x777
3164 #define ATI_VERB_SET_MULTICHANNEL_23	0x778
3165 #define ATI_VERB_SET_MULTICHANNEL_45	0x779
3166 #define ATI_VERB_SET_MULTICHANNEL_67	0x77a
3167 #define ATI_VERB_SET_HBR_CONTROL	0x77c
3168 #define ATI_VERB_SET_MULTICHANNEL_1	0x785
3169 #define ATI_VERB_SET_MULTICHANNEL_3	0x786
3170 #define ATI_VERB_SET_MULTICHANNEL_5	0x787
3171 #define ATI_VERB_SET_MULTICHANNEL_7	0x788
3172 #define ATI_VERB_SET_MULTICHANNEL_MODE	0x789
3173 #define ATI_VERB_GET_CHANNEL_ALLOCATION	0xf71
3174 #define ATI_VERB_GET_DOWNMIX_INFO	0xf72
3175 #define ATI_VERB_GET_MULTICHANNEL_01	0xf77
3176 #define ATI_VERB_GET_MULTICHANNEL_23	0xf78
3177 #define ATI_VERB_GET_MULTICHANNEL_45	0xf79
3178 #define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
3179 #define ATI_VERB_GET_HBR_CONTROL	0xf7c
3180 #define ATI_VERB_GET_MULTICHANNEL_1	0xf85
3181 #define ATI_VERB_GET_MULTICHANNEL_3	0xf86
3182 #define ATI_VERB_GET_MULTICHANNEL_5	0xf87
3183 #define ATI_VERB_GET_MULTICHANNEL_7	0xf88
3184 #define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
3185 
3186 /* AMD specific HDA cvt verbs */
3187 #define ATI_VERB_SET_RAMP_RATE		0x770
3188 #define ATI_VERB_GET_RAMP_RATE		0xf70
3189 
3190 #define ATI_OUT_ENABLE 0x1
3191 
3192 #define ATI_MULTICHANNEL_MODE_PAIRED	0
3193 #define ATI_MULTICHANNEL_MODE_SINGLE	1
3194 
3195 #define ATI_HBR_CAPABLE 0x01
3196 #define ATI_HBR_ENABLE 0x10
3197 
3198 static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
3199 			   unsigned char *buf, int *eld_size)
3200 {
3201 	/* call hda_eld.c ATI/AMD-specific function */
3202 	return snd_hdmi_get_eld_ati(codec, nid, buf, eld_size,
3203 				    is_amdhdmi_rev3_or_later(codec));
3204 }
3205 
3206 static void atihdmi_pin_setup_infoframe(struct hda_codec *codec, hda_nid_t pin_nid, int ca,
3207 					int active_channels, int conn_type)
3208 {
3209 	snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);
3210 }
3211 
3212 static int atihdmi_paired_swap_fc_lfe(int pos)
3213 {
3214 	/*
3215 	 * ATI/AMD have automatic FC/LFE swap built-in
3216 	 * when in pairwise mapping mode.
3217 	 */
3218 
3219 	switch (pos) {
3220 		/* see channel_allocations[].speakers[] */
3221 		case 2: return 3;
3222 		case 3: return 2;
3223 		default: break;
3224 	}
3225 
3226 	return pos;
3227 }
3228 
3229 static int atihdmi_paired_chmap_validate(int ca, int chs, unsigned char *map)
3230 {
3231 	struct cea_channel_speaker_allocation *cap;
3232 	int i, j;
3233 
3234 	/* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */
3235 
3236 	cap = &channel_allocations[get_channel_allocation_order(ca)];
3237 	for (i = 0; i < chs; ++i) {
3238 		int mask = to_spk_mask(map[i]);
3239 		bool ok = false;
3240 		bool companion_ok = false;
3241 
3242 		if (!mask)
3243 			continue;
3244 
3245 		for (j = 0 + i % 2; j < 8; j += 2) {
3246 			int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);
3247 			if (cap->speakers[chan_idx] == mask) {
3248 				/* channel is in a supported position */
3249 				ok = true;
3250 
3251 				if (i % 2 == 0 && i + 1 < chs) {
3252 					/* even channel, check the odd companion */
3253 					int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);
3254 					int comp_mask_req = to_spk_mask(map[i+1]);
3255 					int comp_mask_act = cap->speakers[comp_chan_idx];
3256 
3257 					if (comp_mask_req == comp_mask_act)
3258 						companion_ok = true;
3259 					else
3260 						return -EINVAL;
3261 				}
3262 				break;
3263 			}
3264 		}
3265 
3266 		if (!ok)
3267 			return -EINVAL;
3268 
3269 		if (companion_ok)
3270 			i++; /* companion channel already checked */
3271 	}
3272 
3273 	return 0;
3274 }
3275 
3276 static int atihdmi_pin_set_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
3277 					int hdmi_slot, int stream_channel)
3278 {
3279 	int verb;
3280 	int ati_channel_setup = 0;
3281 
3282 	if (hdmi_slot > 7)
3283 		return -EINVAL;
3284 
3285 	if (!has_amd_full_remap_support(codec)) {
3286 		hdmi_slot = atihdmi_paired_swap_fc_lfe(hdmi_slot);
3287 
3288 		/* In case this is an odd slot but without stream channel, do not
3289 		 * disable the slot since the corresponding even slot could have a
3290 		 * channel. In case neither have a channel, the slot pair will be
3291 		 * disabled when this function is called for the even slot. */
3292 		if (hdmi_slot % 2 != 0 && stream_channel == 0xf)
3293 			return 0;
3294 
3295 		hdmi_slot -= hdmi_slot % 2;
3296 
3297 		if (stream_channel != 0xf)
3298 			stream_channel -= stream_channel % 2;
3299 	}
3300 
3301 	verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;
3302 
3303 	/* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */
3304 
3305 	if (stream_channel != 0xf)
3306 		ati_channel_setup = (stream_channel << 4) | ATI_OUT_ENABLE;
3307 
3308 	return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);
3309 }
3310 
3311 static int atihdmi_pin_get_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
3312 					int asp_slot)
3313 {
3314 	bool was_odd = false;
3315 	int ati_asp_slot = asp_slot;
3316 	int verb;
3317 	int ati_channel_setup;
3318 
3319 	if (asp_slot > 7)
3320 		return -EINVAL;
3321 
3322 	if (!has_amd_full_remap_support(codec)) {
3323 		ati_asp_slot = atihdmi_paired_swap_fc_lfe(asp_slot);
3324 		if (ati_asp_slot % 2 != 0) {
3325 			ati_asp_slot -= 1;
3326 			was_odd = true;
3327 		}
3328 	}
3329 
3330 	verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;
3331 
3332 	ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);
3333 
3334 	if (!(ati_channel_setup & ATI_OUT_ENABLE))
3335 		return 0xf;
3336 
3337 	return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;
3338 }
3339 
3340 static int atihdmi_paired_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
3341 							    int channels)
3342 {
3343 	int c;
3344 
3345 	/*
3346 	 * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so
3347 	 * we need to take that into account (a single channel may take 2
3348 	 * channel slots if we need to carry a silent channel next to it).
3349 	 * On Rev3+ AMD codecs this function is not used.
3350 	 */
3351 	int chanpairs = 0;
3352 
3353 	/* We only produce even-numbered channel count TLVs */
3354 	if ((channels % 2) != 0)
3355 		return -1;
3356 
3357 	for (c = 0; c < 7; c += 2) {
3358 		if (cap->speakers[c] || cap->speakers[c+1])
3359 			chanpairs++;
3360 	}
3361 
3362 	if (chanpairs * 2 != channels)
3363 		return -1;
3364 
3365 	return SNDRV_CTL_TLVT_CHMAP_PAIRED;
3366 }
3367 
3368 static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct cea_channel_speaker_allocation *cap,
3369 						  unsigned int *chmap, int channels)
3370 {
3371 	/* produce paired maps for pre-rev3 ATI/AMD codecs */
3372 	int count = 0;
3373 	int c;
3374 
3375 	for (c = 7; c >= 0; c--) {
3376 		int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);
3377 		int spk = cap->speakers[chan];
3378 		if (!spk) {
3379 			/* add N/A channel if the companion channel is occupied */
3380 			if (cap->speakers[chan + (chan % 2 ? -1 : 1)])
3381 				chmap[count++] = SNDRV_CHMAP_NA;
3382 
3383 			continue;
3384 		}
3385 
3386 		chmap[count++] = spk_to_chmap(spk);
3387 	}
3388 
3389 	WARN_ON(count != channels);
3390 }
3391 
3392 static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
3393 				 bool hbr)
3394 {
3395 	int hbr_ctl, hbr_ctl_new;
3396 
3397 	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
3398 	if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {
3399 		if (hbr)
3400 			hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
3401 		else
3402 			hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
3403 
3404 		codec_dbg(codec,
3405 			  "atihdmi_pin_hbr_setup: NID=0x%x, %shbr-ctl=0x%x\n",
3406 				pin_nid,
3407 				hbr_ctl == hbr_ctl_new ? "" : "new-",
3408 				hbr_ctl_new);
3409 
3410 		if (hbr_ctl != hbr_ctl_new)
3411 			snd_hda_codec_write(codec, pin_nid, 0,
3412 						ATI_VERB_SET_HBR_CONTROL,
3413 						hbr_ctl_new);
3414 
3415 	} else if (hbr)
3416 		return -EINVAL;
3417 
3418 	return 0;
3419 }
3420 
3421 static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
3422 				hda_nid_t pin_nid, u32 stream_tag, int format)
3423 {
3424 
3425 	if (is_amdhdmi_rev3_or_later(codec)) {
3426 		int ramp_rate = 180; /* default as per AMD spec */
3427 		/* disable ramp-up/down for non-pcm as per AMD spec */
3428 		if (format & AC_FMT_TYPE_NON_PCM)
3429 			ramp_rate = 0;
3430 
3431 		snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);
3432 	}
3433 
3434 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
3435 }
3436 
3437 
3438 static int atihdmi_init(struct hda_codec *codec)
3439 {
3440 	struct hdmi_spec *spec = codec->spec;
3441 	int pin_idx, err;
3442 
3443 	err = generic_hdmi_init(codec);
3444 
3445 	if (err)
3446 		return err;
3447 
3448 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
3449 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
3450 
3451 		/* make sure downmix information in infoframe is zero */
3452 		snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);
3453 
3454 		/* enable channel-wise remap mode if supported */
3455 		if (has_amd_full_remap_support(codec))
3456 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
3457 					    ATI_VERB_SET_MULTICHANNEL_MODE,
3458 					    ATI_MULTICHANNEL_MODE_SINGLE);
3459 	}
3460 
3461 	return 0;
3462 }
3463 
3464 static int patch_atihdmi(struct hda_codec *codec)
3465 {
3466 	struct hdmi_spec *spec;
3467 	struct hdmi_spec_per_cvt *per_cvt;
3468 	int err, cvt_idx;
3469 
3470 	err = patch_generic_hdmi(codec);
3471 
3472 	if (err)
3473 		return err;
3474 
3475 	codec->patch_ops.init = atihdmi_init;
3476 
3477 	spec = codec->spec;
3478 
3479 	spec->ops.pin_get_eld = atihdmi_pin_get_eld;
3480 	spec->ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
3481 	spec->ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
3482 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
3483 	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
3484 	spec->ops.setup_stream = atihdmi_setup_stream;
3485 
3486 	if (!has_amd_full_remap_support(codec)) {
3487 		/* override to ATI/AMD-specific versions with pairwise mapping */
3488 		spec->ops.chmap_cea_alloc_validate_get_type =
3489 			atihdmi_paired_chmap_cea_alloc_validate_get_type;
3490 		spec->ops.cea_alloc_to_tlv_chmap = atihdmi_paired_cea_alloc_to_tlv_chmap;
3491 		spec->ops.chmap_validate = atihdmi_paired_chmap_validate;
3492 	}
3493 
3494 	/* ATI/AMD converters do not advertise all of their capabilities */
3495 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
3496 		per_cvt = get_cvt(spec, cvt_idx);
3497 		per_cvt->channels_max = max(per_cvt->channels_max, 8u);
3498 		per_cvt->rates |= SUPPORTED_RATES;
3499 		per_cvt->formats |= SUPPORTED_FORMATS;
3500 		per_cvt->maxbps = max(per_cvt->maxbps, 24u);
3501 	}
3502 
3503 	spec->channels_max = max(spec->channels_max, 8u);
3504 
3505 	return 0;
3506 }
3507 
3508 /* VIA HDMI Implementation */
3509 #define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
3510 #define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
3511 
3512 static int patch_via_hdmi(struct hda_codec *codec)
3513 {
3514 	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
3515 }
3516 
3517 /*
3518  * patch entries
3519  */
3520 static const struct hda_device_id snd_hda_id_hdmi[] = {
3521 HDA_CODEC_ENTRY(0x1002793c, "RS600 HDMI",	patch_atihdmi),
3522 HDA_CODEC_ENTRY(0x10027919, "RS600 HDMI",	patch_atihdmi),
3523 HDA_CODEC_ENTRY(0x1002791a, "RS690/780 HDMI",	patch_atihdmi),
3524 HDA_CODEC_ENTRY(0x1002aa01, "R6xx HDMI",	patch_atihdmi),
3525 HDA_CODEC_ENTRY(0x10951390, "SiI1390 HDMI",	patch_generic_hdmi),
3526 HDA_CODEC_ENTRY(0x10951392, "SiI1392 HDMI",	patch_generic_hdmi),
3527 HDA_CODEC_ENTRY(0x17e80047, "Chrontel HDMI",	patch_generic_hdmi),
3528 HDA_CODEC_ENTRY(0x10de0002, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3529 HDA_CODEC_ENTRY(0x10de0003, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3530 HDA_CODEC_ENTRY(0x10de0005, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3531 HDA_CODEC_ENTRY(0x10de0006, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3532 HDA_CODEC_ENTRY(0x10de0007, "MCP79/7A HDMI",	patch_nvhdmi_8ch_7x),
3533 HDA_CODEC_ENTRY(0x10de000a, "GPU 0a HDMI/DP",	patch_nvhdmi),
3534 HDA_CODEC_ENTRY(0x10de000b, "GPU 0b HDMI/DP",	patch_nvhdmi),
3535 HDA_CODEC_ENTRY(0x10de000c, "MCP89 HDMI",	patch_nvhdmi),
3536 HDA_CODEC_ENTRY(0x10de000d, "GPU 0d HDMI/DP",	patch_nvhdmi),
3537 HDA_CODEC_ENTRY(0x10de0010, "GPU 10 HDMI/DP",	patch_nvhdmi),
3538 HDA_CODEC_ENTRY(0x10de0011, "GPU 11 HDMI/DP",	patch_nvhdmi),
3539 HDA_CODEC_ENTRY(0x10de0012, "GPU 12 HDMI/DP",	patch_nvhdmi),
3540 HDA_CODEC_ENTRY(0x10de0013, "GPU 13 HDMI/DP",	patch_nvhdmi),
3541 HDA_CODEC_ENTRY(0x10de0014, "GPU 14 HDMI/DP",	patch_nvhdmi),
3542 HDA_CODEC_ENTRY(0x10de0015, "GPU 15 HDMI/DP",	patch_nvhdmi),
3543 HDA_CODEC_ENTRY(0x10de0016, "GPU 16 HDMI/DP",	patch_nvhdmi),
3544 /* 17 is known to be absent */
3545 HDA_CODEC_ENTRY(0x10de0018, "GPU 18 HDMI/DP",	patch_nvhdmi),
3546 HDA_CODEC_ENTRY(0x10de0019, "GPU 19 HDMI/DP",	patch_nvhdmi),
3547 HDA_CODEC_ENTRY(0x10de001a, "GPU 1a HDMI/DP",	patch_nvhdmi),
3548 HDA_CODEC_ENTRY(0x10de001b, "GPU 1b HDMI/DP",	patch_nvhdmi),
3549 HDA_CODEC_ENTRY(0x10de001c, "GPU 1c HDMI/DP",	patch_nvhdmi),
3550 HDA_CODEC_ENTRY(0x10de0020, "Tegra30 HDMI",	patch_tegra_hdmi),
3551 HDA_CODEC_ENTRY(0x10de0022, "Tegra114 HDMI",	patch_tegra_hdmi),
3552 HDA_CODEC_ENTRY(0x10de0028, "Tegra124 HDMI",	patch_tegra_hdmi),
3553 HDA_CODEC_ENTRY(0x10de0029, "Tegra210 HDMI/DP",	patch_tegra_hdmi),
3554 HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",	patch_nvhdmi),
3555 HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),
3556 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
3557 HDA_CODEC_ENTRY(0x10de0043, "GPU 43 HDMI/DP",	patch_nvhdmi),
3558 HDA_CODEC_ENTRY(0x10de0044, "GPU 44 HDMI/DP",	patch_nvhdmi),
3559 HDA_CODEC_ENTRY(0x10de0051, "GPU 51 HDMI/DP",	patch_nvhdmi),
3560 HDA_CODEC_ENTRY(0x10de0060, "GPU 60 HDMI/DP",	patch_nvhdmi),
3561 HDA_CODEC_ENTRY(0x10de0067, "MCP67 HDMI",	patch_nvhdmi_2ch),
3562 HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP",	patch_nvhdmi),
3563 HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP",	patch_nvhdmi),
3564 HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP",	patch_nvhdmi),
3565 HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP",	patch_nvhdmi),
3566 HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",	patch_nvhdmi_2ch),
3567 HDA_CODEC_ENTRY(0x11069f80, "VX900 HDMI/DP",	patch_via_hdmi),
3568 HDA_CODEC_ENTRY(0x11069f81, "VX900 HDMI/DP",	patch_via_hdmi),
3569 HDA_CODEC_ENTRY(0x11069f84, "VX11 HDMI/DP",	patch_generic_hdmi),
3570 HDA_CODEC_ENTRY(0x11069f85, "VX11 HDMI/DP",	patch_generic_hdmi),
3571 HDA_CODEC_ENTRY(0x80860054, "IbexPeak HDMI",	patch_generic_hdmi),
3572 HDA_CODEC_ENTRY(0x80862801, "Bearlake HDMI",	patch_generic_hdmi),
3573 HDA_CODEC_ENTRY(0x80862802, "Cantiga HDMI",	patch_generic_hdmi),
3574 HDA_CODEC_ENTRY(0x80862803, "Eaglelake HDMI",	patch_generic_hdmi),
3575 HDA_CODEC_ENTRY(0x80862804, "IbexPeak HDMI",	patch_generic_hdmi),
3576 HDA_CODEC_ENTRY(0x80862805, "CougarPoint HDMI",	patch_generic_hdmi),
3577 HDA_CODEC_ENTRY(0x80862806, "PantherPoint HDMI", patch_generic_hdmi),
3578 HDA_CODEC_ENTRY(0x80862807, "Haswell HDMI",	patch_generic_hdmi),
3579 HDA_CODEC_ENTRY(0x80862808, "Broadwell HDMI",	patch_generic_hdmi),
3580 HDA_CODEC_ENTRY(0x80862809, "Skylake HDMI",	patch_generic_hdmi),
3581 HDA_CODEC_ENTRY(0x8086280a, "Broxton HDMI",	patch_generic_hdmi),
3582 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
3583 HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI",	patch_generic_hdmi),
3584 HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",	patch_generic_hdmi),
3585 HDA_CODEC_ENTRY(0x808629fb, "Crestline HDMI",	patch_generic_hdmi),
3586 /* special ID for generic HDMI */
3587 HDA_CODEC_ENTRY(HDA_CODEC_ID_GENERIC_HDMI, "Generic HDMI", patch_generic_hdmi),
3588 {} /* terminator */
3589 };
3590 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_hdmi);
3591 
3592 MODULE_LICENSE("GPL");
3593 MODULE_DESCRIPTION("HDMI HD-audio codec");
3594 MODULE_ALIAS("snd-hda-codec-intelhdmi");
3595 MODULE_ALIAS("snd-hda-codec-nvhdmi");
3596 MODULE_ALIAS("snd-hda-codec-atihdmi");
3597 
3598 static struct hda_codec_driver hdmi_driver = {
3599 	.id = snd_hda_id_hdmi,
3600 };
3601 
3602 module_hda_codec_driver(hdmi_driver);
3603