xref: /openbmc/linux/sound/pci/hda/patch_hdmi.c (revision 23c2b932)
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 <sound/hda_chmap.h>
43 #include "hda_codec.h"
44 #include "hda_local.h"
45 #include "hda_jack.h"
46 
47 static bool static_hdmi_pcm;
48 module_param(static_hdmi_pcm, bool, 0644);
49 MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
50 
51 #define is_haswell(codec)  ((codec)->core.vendor_id == 0x80862807)
52 #define is_broadwell(codec)    ((codec)->core.vendor_id == 0x80862808)
53 #define is_skylake(codec) ((codec)->core.vendor_id == 0x80862809)
54 #define is_broxton(codec) ((codec)->core.vendor_id == 0x8086280a)
55 #define is_kabylake(codec) ((codec)->core.vendor_id == 0x8086280b)
56 #define is_haswell_plus(codec) (is_haswell(codec) || is_broadwell(codec) \
57 				|| is_skylake(codec) || is_broxton(codec) \
58 				|| is_kabylake(codec))
59 
60 #define is_valleyview(codec) ((codec)->core.vendor_id == 0x80862882)
61 #define is_cherryview(codec) ((codec)->core.vendor_id == 0x80862883)
62 #define is_valleyview_plus(codec) (is_valleyview(codec) || is_cherryview(codec))
63 
64 struct hdmi_spec_per_cvt {
65 	hda_nid_t cvt_nid;
66 	int assigned;
67 	unsigned int channels_min;
68 	unsigned int channels_max;
69 	u32 rates;
70 	u64 formats;
71 	unsigned int maxbps;
72 };
73 
74 /* max. connections to a widget */
75 #define HDA_MAX_CONNECTIONS	32
76 
77 struct hdmi_spec_per_pin {
78 	hda_nid_t pin_nid;
79 	/* pin idx, different device entries on the same pin use the same idx */
80 	int pin_nid_idx;
81 	int num_mux_nids;
82 	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
83 	int mux_idx;
84 	hda_nid_t cvt_nid;
85 
86 	struct hda_codec *codec;
87 	struct hdmi_eld sink_eld;
88 	struct mutex lock;
89 	struct delayed_work work;
90 	struct hdmi_pcm *pcm; /* pointer to spec->pcm_rec[n] dynamically*/
91 	int pcm_idx; /* which pcm is attached. -1 means no pcm is attached */
92 	int repoll_count;
93 	bool setup; /* the stream has been set up by prepare callback */
94 	int channels; /* current number of channels */
95 	bool non_pcm;
96 	bool chmap_set;		/* channel-map override by ALSA API? */
97 	unsigned char chmap[8]; /* ALSA API channel-map */
98 #ifdef CONFIG_SND_PROC_FS
99 	struct snd_info_entry *proc_entry;
100 #endif
101 };
102 
103 /* operations used by generic code that can be overridden by patches */
104 struct hdmi_ops {
105 	int (*pin_get_eld)(struct hda_codec *codec, hda_nid_t pin_nid,
106 			   unsigned char *buf, int *eld_size);
107 
108 	void (*pin_setup_infoframe)(struct hda_codec *codec, hda_nid_t pin_nid,
109 				    int ca, int active_channels, int conn_type);
110 
111 	/* enable/disable HBR (HD passthrough) */
112 	int (*pin_hbr_setup)(struct hda_codec *codec, hda_nid_t pin_nid, bool hbr);
113 
114 	int (*setup_stream)(struct hda_codec *codec, hda_nid_t cvt_nid,
115 			    hda_nid_t pin_nid, u32 stream_tag, int format);
116 
117 	void (*pin_cvt_fixup)(struct hda_codec *codec,
118 			      struct hdmi_spec_per_pin *per_pin,
119 			      hda_nid_t cvt_nid);
120 };
121 
122 struct hdmi_pcm {
123 	struct hda_pcm *pcm;
124 	struct snd_jack *jack;
125 	struct snd_kcontrol *eld_ctl;
126 };
127 
128 struct hdmi_spec {
129 	int num_cvts;
130 	struct snd_array cvts; /* struct hdmi_spec_per_cvt */
131 	hda_nid_t cvt_nids[4]; /* only for haswell fix */
132 
133 	int num_pins;
134 	struct snd_array pins; /* struct hdmi_spec_per_pin */
135 	struct hdmi_pcm pcm_rec[16];
136 	struct mutex pcm_lock;
137 	/* pcm_bitmap means which pcms have been assigned to pins*/
138 	unsigned long pcm_bitmap;
139 	int pcm_used;	/* counter of pcm_rec[] */
140 	/* bitmap shows whether the pcm is opened in user space
141 	 * bit 0 means the first playback PCM (PCM3);
142 	 * bit 1 means the second playback PCM, and so on.
143 	 */
144 	unsigned long pcm_in_use;
145 
146 	struct hdmi_eld temp_eld;
147 	struct hdmi_ops ops;
148 
149 	bool dyn_pin_out;
150 	bool dyn_pcm_assign;
151 	/*
152 	 * Non-generic VIA/NVIDIA specific
153 	 */
154 	struct hda_multi_out multiout;
155 	struct hda_pcm_stream pcm_playback;
156 
157 	/* i915/powerwell (Haswell+/Valleyview+) specific */
158 	bool use_acomp_notifier; /* use i915 eld_notify callback for hotplug */
159 	struct i915_audio_component_audio_ops i915_audio_ops;
160 	bool i915_bound; /* was i915 bound in this driver? */
161 
162 	struct hdac_chmap chmap;
163 };
164 
165 #ifdef CONFIG_SND_HDA_I915
166 static inline bool codec_has_acomp(struct hda_codec *codec)
167 {
168 	struct hdmi_spec *spec = codec->spec;
169 	return spec->use_acomp_notifier;
170 }
171 #else
172 #define codec_has_acomp(codec)	false
173 #endif
174 
175 struct hdmi_audio_infoframe {
176 	u8 type; /* 0x84 */
177 	u8 ver;  /* 0x01 */
178 	u8 len;  /* 0x0a */
179 
180 	u8 checksum;
181 
182 	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
183 	u8 SS01_SF24;
184 	u8 CXT04;
185 	u8 CA;
186 	u8 LFEPBL01_LSV36_DM_INH7;
187 };
188 
189 struct dp_audio_infoframe {
190 	u8 type; /* 0x84 */
191 	u8 len;  /* 0x1b */
192 	u8 ver;  /* 0x11 << 2 */
193 
194 	u8 CC02_CT47;	/* match with HDMI infoframe from this on */
195 	u8 SS01_SF24;
196 	u8 CXT04;
197 	u8 CA;
198 	u8 LFEPBL01_LSV36_DM_INH7;
199 };
200 
201 union audio_infoframe {
202 	struct hdmi_audio_infoframe hdmi;
203 	struct dp_audio_infoframe dp;
204 	u8 bytes[0];
205 };
206 
207 /*
208  * HDMI routines
209  */
210 
211 #define get_pin(spec, idx) \
212 	((struct hdmi_spec_per_pin *)snd_array_elem(&spec->pins, idx))
213 #define get_cvt(spec, idx) \
214 	((struct hdmi_spec_per_cvt  *)snd_array_elem(&spec->cvts, idx))
215 /* obtain hdmi_pcm object assigned to idx */
216 #define get_hdmi_pcm(spec, idx)	(&(spec)->pcm_rec[idx])
217 /* obtain hda_pcm object assigned to idx */
218 #define get_pcm_rec(spec, idx)	(get_hdmi_pcm(spec, idx)->pcm)
219 
220 static int pin_nid_to_pin_index(struct hda_codec *codec, hda_nid_t pin_nid)
221 {
222 	struct hdmi_spec *spec = codec->spec;
223 	int pin_idx;
224 
225 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
226 		if (get_pin(spec, pin_idx)->pin_nid == pin_nid)
227 			return pin_idx;
228 
229 	codec_warn(codec, "HDMI: pin nid %d not registered\n", pin_nid);
230 	return -EINVAL;
231 }
232 
233 static int hinfo_to_pcm_index(struct hda_codec *codec,
234 			struct hda_pcm_stream *hinfo)
235 {
236 	struct hdmi_spec *spec = codec->spec;
237 	int pcm_idx;
238 
239 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++)
240 		if (get_pcm_rec(spec, pcm_idx)->stream == hinfo)
241 			return pcm_idx;
242 
243 	codec_warn(codec, "HDMI: hinfo %p not registered\n", hinfo);
244 	return -EINVAL;
245 }
246 
247 static int hinfo_to_pin_index(struct hda_codec *codec,
248 			      struct hda_pcm_stream *hinfo)
249 {
250 	struct hdmi_spec *spec = codec->spec;
251 	struct hdmi_spec_per_pin *per_pin;
252 	int pin_idx;
253 
254 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
255 		per_pin = get_pin(spec, pin_idx);
256 		if (per_pin->pcm &&
257 			per_pin->pcm->pcm->stream == hinfo)
258 			return pin_idx;
259 	}
260 
261 	codec_dbg(codec, "HDMI: hinfo %p not registered\n", hinfo);
262 	return -EINVAL;
263 }
264 
265 static struct hdmi_spec_per_pin *pcm_idx_to_pin(struct hdmi_spec *spec,
266 						int pcm_idx)
267 {
268 	int i;
269 	struct hdmi_spec_per_pin *per_pin;
270 
271 	for (i = 0; i < spec->num_pins; i++) {
272 		per_pin = get_pin(spec, i);
273 		if (per_pin->pcm_idx == pcm_idx)
274 			return per_pin;
275 	}
276 	return NULL;
277 }
278 
279 static int cvt_nid_to_cvt_index(struct hda_codec *codec, hda_nid_t cvt_nid)
280 {
281 	struct hdmi_spec *spec = codec->spec;
282 	int cvt_idx;
283 
284 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
285 		if (get_cvt(spec, cvt_idx)->cvt_nid == cvt_nid)
286 			return cvt_idx;
287 
288 	codec_warn(codec, "HDMI: cvt nid %d not registered\n", cvt_nid);
289 	return -EINVAL;
290 }
291 
292 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
293 			struct snd_ctl_elem_info *uinfo)
294 {
295 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
296 	struct hdmi_spec *spec = codec->spec;
297 	struct hdmi_spec_per_pin *per_pin;
298 	struct hdmi_eld *eld;
299 	int pcm_idx;
300 
301 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
302 
303 	pcm_idx = kcontrol->private_value;
304 	mutex_lock(&spec->pcm_lock);
305 	per_pin = pcm_idx_to_pin(spec, pcm_idx);
306 	if (!per_pin) {
307 		/* no pin is bound to the pcm */
308 		uinfo->count = 0;
309 		mutex_unlock(&spec->pcm_lock);
310 		return 0;
311 	}
312 	eld = &per_pin->sink_eld;
313 	uinfo->count = eld->eld_valid ? eld->eld_size : 0;
314 	mutex_unlock(&spec->pcm_lock);
315 
316 	return 0;
317 }
318 
319 static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
320 			struct snd_ctl_elem_value *ucontrol)
321 {
322 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
323 	struct hdmi_spec *spec = codec->spec;
324 	struct hdmi_spec_per_pin *per_pin;
325 	struct hdmi_eld *eld;
326 	int pcm_idx;
327 
328 	pcm_idx = kcontrol->private_value;
329 	mutex_lock(&spec->pcm_lock);
330 	per_pin = pcm_idx_to_pin(spec, pcm_idx);
331 	if (!per_pin) {
332 		/* no pin is bound to the pcm */
333 		memset(ucontrol->value.bytes.data, 0,
334 		       ARRAY_SIZE(ucontrol->value.bytes.data));
335 		mutex_unlock(&spec->pcm_lock);
336 		return 0;
337 	}
338 	eld = &per_pin->sink_eld;
339 
340 	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
341 	    eld->eld_size > ELD_MAX_SIZE) {
342 		mutex_unlock(&spec->pcm_lock);
343 		snd_BUG();
344 		return -EINVAL;
345 	}
346 
347 	memset(ucontrol->value.bytes.data, 0,
348 	       ARRAY_SIZE(ucontrol->value.bytes.data));
349 	if (eld->eld_valid)
350 		memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
351 		       eld->eld_size);
352 	mutex_unlock(&spec->pcm_lock);
353 
354 	return 0;
355 }
356 
357 static struct snd_kcontrol_new eld_bytes_ctl = {
358 	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
359 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
360 	.name = "ELD",
361 	.info = hdmi_eld_ctl_info,
362 	.get = hdmi_eld_ctl_get,
363 };
364 
365 static int hdmi_create_eld_ctl(struct hda_codec *codec, int pcm_idx,
366 			int device)
367 {
368 	struct snd_kcontrol *kctl;
369 	struct hdmi_spec *spec = codec->spec;
370 	int err;
371 
372 	kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
373 	if (!kctl)
374 		return -ENOMEM;
375 	kctl->private_value = pcm_idx;
376 	kctl->id.device = device;
377 
378 	/* no pin nid is associated with the kctl now
379 	 * tbd: associate pin nid to eld ctl later
380 	 */
381 	err = snd_hda_ctl_add(codec, 0, kctl);
382 	if (err < 0)
383 		return err;
384 
385 	get_hdmi_pcm(spec, pcm_idx)->eld_ctl = kctl;
386 	return 0;
387 }
388 
389 #ifdef BE_PARANOID
390 static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
391 				int *packet_index, int *byte_index)
392 {
393 	int val;
394 
395 	val = snd_hda_codec_read(codec, pin_nid, 0,
396 				 AC_VERB_GET_HDMI_DIP_INDEX, 0);
397 
398 	*packet_index = val >> 5;
399 	*byte_index = val & 0x1f;
400 }
401 #endif
402 
403 static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
404 				int packet_index, int byte_index)
405 {
406 	int val;
407 
408 	val = (packet_index << 5) | (byte_index & 0x1f);
409 
410 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
411 }
412 
413 static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
414 				unsigned char val)
415 {
416 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
417 }
418 
419 static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
420 {
421 	struct hdmi_spec *spec = codec->spec;
422 	int pin_out;
423 
424 	/* Unmute */
425 	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
426 		snd_hda_codec_write(codec, pin_nid, 0,
427 				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
428 
429 	if (spec->dyn_pin_out)
430 		/* Disable pin out until stream is active */
431 		pin_out = 0;
432 	else
433 		/* Enable pin out: some machines with GM965 gets broken output
434 		 * when the pin is disabled or changed while using with HDMI
435 		 */
436 		pin_out = PIN_OUT;
437 
438 	snd_hda_codec_write(codec, pin_nid, 0,
439 			    AC_VERB_SET_PIN_WIDGET_CONTROL, pin_out);
440 }
441 
442 /*
443  * ELD proc files
444  */
445 
446 #ifdef CONFIG_SND_PROC_FS
447 static void print_eld_info(struct snd_info_entry *entry,
448 			   struct snd_info_buffer *buffer)
449 {
450 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
451 
452 	mutex_lock(&per_pin->lock);
453 	snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer);
454 	mutex_unlock(&per_pin->lock);
455 }
456 
457 static void write_eld_info(struct snd_info_entry *entry,
458 			   struct snd_info_buffer *buffer)
459 {
460 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
461 
462 	mutex_lock(&per_pin->lock);
463 	snd_hdmi_write_eld_info(&per_pin->sink_eld, buffer);
464 	mutex_unlock(&per_pin->lock);
465 }
466 
467 static int eld_proc_new(struct hdmi_spec_per_pin *per_pin, int index)
468 {
469 	char name[32];
470 	struct hda_codec *codec = per_pin->codec;
471 	struct snd_info_entry *entry;
472 	int err;
473 
474 	snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index);
475 	err = snd_card_proc_new(codec->card, name, &entry);
476 	if (err < 0)
477 		return err;
478 
479 	snd_info_set_text_ops(entry, per_pin, print_eld_info);
480 	entry->c.text.write = write_eld_info;
481 	entry->mode |= S_IWUSR;
482 	per_pin->proc_entry = entry;
483 
484 	return 0;
485 }
486 
487 static void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
488 {
489 	if (!per_pin->codec->bus->shutdown) {
490 		snd_info_free_entry(per_pin->proc_entry);
491 		per_pin->proc_entry = NULL;
492 	}
493 }
494 #else
495 static inline int eld_proc_new(struct hdmi_spec_per_pin *per_pin,
496 			       int index)
497 {
498 	return 0;
499 }
500 static inline void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
501 {
502 }
503 #endif
504 
505 /*
506  * Audio InfoFrame routines
507  */
508 
509 /*
510  * Enable Audio InfoFrame Transmission
511  */
512 static void hdmi_start_infoframe_trans(struct hda_codec *codec,
513 				       hda_nid_t pin_nid)
514 {
515 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
516 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
517 						AC_DIPXMIT_BEST);
518 }
519 
520 /*
521  * Disable Audio InfoFrame Transmission
522  */
523 static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
524 				      hda_nid_t pin_nid)
525 {
526 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
527 	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
528 						AC_DIPXMIT_DISABLE);
529 }
530 
531 static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
532 {
533 #ifdef CONFIG_SND_DEBUG_VERBOSE
534 	int i;
535 	int size;
536 
537 	size = snd_hdmi_get_eld_size(codec, pin_nid);
538 	codec_dbg(codec, "HDMI: ELD buf size is %d\n", size);
539 
540 	for (i = 0; i < 8; i++) {
541 		size = snd_hda_codec_read(codec, pin_nid, 0,
542 						AC_VERB_GET_HDMI_DIP_SIZE, i);
543 		codec_dbg(codec, "HDMI: DIP GP[%d] buf size is %d\n", i, size);
544 	}
545 #endif
546 }
547 
548 static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
549 {
550 #ifdef BE_PARANOID
551 	int i, j;
552 	int size;
553 	int pi, bi;
554 	for (i = 0; i < 8; i++) {
555 		size = snd_hda_codec_read(codec, pin_nid, 0,
556 						AC_VERB_GET_HDMI_DIP_SIZE, i);
557 		if (size == 0)
558 			continue;
559 
560 		hdmi_set_dip_index(codec, pin_nid, i, 0x0);
561 		for (j = 1; j < 1000; j++) {
562 			hdmi_write_dip_byte(codec, pin_nid, 0x0);
563 			hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
564 			if (pi != i)
565 				codec_dbg(codec, "dip index %d: %d != %d\n",
566 						bi, pi, i);
567 			if (bi == 0) /* byte index wrapped around */
568 				break;
569 		}
570 		codec_dbg(codec,
571 			"HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
572 			i, size, j);
573 	}
574 #endif
575 }
576 
577 static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
578 {
579 	u8 *bytes = (u8 *)hdmi_ai;
580 	u8 sum = 0;
581 	int i;
582 
583 	hdmi_ai->checksum = 0;
584 
585 	for (i = 0; i < sizeof(*hdmi_ai); i++)
586 		sum += bytes[i];
587 
588 	hdmi_ai->checksum = -sum;
589 }
590 
591 static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
592 				      hda_nid_t pin_nid,
593 				      u8 *dip, int size)
594 {
595 	int i;
596 
597 	hdmi_debug_dip_size(codec, pin_nid);
598 	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
599 
600 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
601 	for (i = 0; i < size; i++)
602 		hdmi_write_dip_byte(codec, pin_nid, dip[i]);
603 }
604 
605 static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
606 				    u8 *dip, int size)
607 {
608 	u8 val;
609 	int i;
610 
611 	if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
612 							    != AC_DIPXMIT_BEST)
613 		return false;
614 
615 	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
616 	for (i = 0; i < size; i++) {
617 		val = snd_hda_codec_read(codec, pin_nid, 0,
618 					 AC_VERB_GET_HDMI_DIP_DATA, 0);
619 		if (val != dip[i])
620 			return false;
621 	}
622 
623 	return true;
624 }
625 
626 static void hdmi_pin_setup_infoframe(struct hda_codec *codec,
627 				     hda_nid_t pin_nid,
628 				     int ca, int active_channels,
629 				     int conn_type)
630 {
631 	union audio_infoframe ai;
632 
633 	memset(&ai, 0, sizeof(ai));
634 	if (conn_type == 0) { /* HDMI */
635 		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
636 
637 		hdmi_ai->type		= 0x84;
638 		hdmi_ai->ver		= 0x01;
639 		hdmi_ai->len		= 0x0a;
640 		hdmi_ai->CC02_CT47	= active_channels - 1;
641 		hdmi_ai->CA		= ca;
642 		hdmi_checksum_audio_infoframe(hdmi_ai);
643 	} else if (conn_type == 1) { /* DisplayPort */
644 		struct dp_audio_infoframe *dp_ai = &ai.dp;
645 
646 		dp_ai->type		= 0x84;
647 		dp_ai->len		= 0x1b;
648 		dp_ai->ver		= 0x11 << 2;
649 		dp_ai->CC02_CT47	= active_channels - 1;
650 		dp_ai->CA		= ca;
651 	} else {
652 		codec_dbg(codec, "HDMI: unknown connection type at pin %d\n",
653 			    pin_nid);
654 		return;
655 	}
656 
657 	/*
658 	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
659 	 * sizeof(*dp_ai) to avoid partial match/update problems when
660 	 * the user switches between HDMI/DP monitors.
661 	 */
662 	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
663 					sizeof(ai))) {
664 		codec_dbg(codec,
665 			  "hdmi_pin_setup_infoframe: pin=%d channels=%d ca=0x%02x\n",
666 			    pin_nid,
667 			    active_channels, ca);
668 		hdmi_stop_infoframe_trans(codec, pin_nid);
669 		hdmi_fill_audio_infoframe(codec, pin_nid,
670 					    ai.bytes, sizeof(ai));
671 		hdmi_start_infoframe_trans(codec, pin_nid);
672 	}
673 }
674 
675 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
676 				       struct hdmi_spec_per_pin *per_pin,
677 				       bool non_pcm)
678 {
679 	struct hdmi_spec *spec = codec->spec;
680 	struct hdac_chmap *chmap = &spec->chmap;
681 	hda_nid_t pin_nid = per_pin->pin_nid;
682 	int channels = per_pin->channels;
683 	int active_channels;
684 	struct hdmi_eld *eld;
685 	int ca;
686 
687 	if (!channels)
688 		return;
689 
690 	/* some HW (e.g. HSW+) needs reprogramming the amp at each time */
691 	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
692 		snd_hda_codec_write(codec, pin_nid, 0,
693 					    AC_VERB_SET_AMP_GAIN_MUTE,
694 					    AMP_OUT_UNMUTE);
695 
696 	eld = &per_pin->sink_eld;
697 
698 	ca = snd_hdac_channel_allocation(&codec->core,
699 			eld->info.spk_alloc, channels,
700 			per_pin->chmap_set, non_pcm, per_pin->chmap);
701 
702 	active_channels = snd_hdac_get_active_channels(ca);
703 
704 	chmap->ops.set_channel_count(&codec->core, per_pin->cvt_nid,
705 						active_channels);
706 
707 	/*
708 	 * always configure channel mapping, it may have been changed by the
709 	 * user in the meantime
710 	 */
711 	snd_hdac_setup_channel_mapping(&spec->chmap,
712 				pin_nid, non_pcm, ca, channels,
713 				per_pin->chmap, per_pin->chmap_set);
714 
715 	spec->ops.pin_setup_infoframe(codec, pin_nid, ca, active_channels,
716 				      eld->info.conn_type);
717 
718 	per_pin->non_pcm = non_pcm;
719 }
720 
721 /*
722  * Unsolicited events
723  */
724 
725 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
726 
727 static void check_presence_and_report(struct hda_codec *codec, hda_nid_t nid)
728 {
729 	struct hdmi_spec *spec = codec->spec;
730 	int pin_idx = pin_nid_to_pin_index(codec, nid);
731 
732 	if (pin_idx < 0)
733 		return;
734 	if (hdmi_present_sense(get_pin(spec, pin_idx), 1))
735 		snd_hda_jack_report_sync(codec);
736 }
737 
738 static void jack_callback(struct hda_codec *codec,
739 			  struct hda_jack_callback *jack)
740 {
741 	check_presence_and_report(codec, jack->nid);
742 }
743 
744 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
745 {
746 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
747 	struct hda_jack_tbl *jack;
748 	int dev_entry = (res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
749 
750 	jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
751 	if (!jack)
752 		return;
753 	jack->jack_dirty = 1;
754 
755 	codec_dbg(codec,
756 		"HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
757 		codec->addr, jack->nid, dev_entry, !!(res & AC_UNSOL_RES_IA),
758 		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
759 
760 	check_presence_and_report(codec, jack->nid);
761 }
762 
763 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
764 {
765 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
766 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
767 	int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
768 	int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
769 
770 	codec_info(codec,
771 		"HDMI CP event: CODEC=%d TAG=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
772 		codec->addr,
773 		tag,
774 		subtag,
775 		cp_state,
776 		cp_ready);
777 
778 	/* TODO */
779 	if (cp_state)
780 		;
781 	if (cp_ready)
782 		;
783 }
784 
785 
786 static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
787 {
788 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
789 	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
790 
791 	if (!snd_hda_jack_tbl_get_from_tag(codec, tag)) {
792 		codec_dbg(codec, "Unexpected HDMI event tag 0x%x\n", tag);
793 		return;
794 	}
795 
796 	if (subtag == 0)
797 		hdmi_intrinsic_event(codec, res);
798 	else
799 		hdmi_non_intrinsic_event(codec, res);
800 }
801 
802 static void haswell_verify_D0(struct hda_codec *codec,
803 		hda_nid_t cvt_nid, hda_nid_t nid)
804 {
805 	int pwr;
806 
807 	/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
808 	 * thus pins could only choose converter 0 for use. Make sure the
809 	 * converters are in correct power state */
810 	if (!snd_hda_check_power_state(codec, cvt_nid, AC_PWRST_D0))
811 		snd_hda_codec_write(codec, cvt_nid, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
812 
813 	if (!snd_hda_check_power_state(codec, nid, AC_PWRST_D0)) {
814 		snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE,
815 				    AC_PWRST_D0);
816 		msleep(40);
817 		pwr = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_POWER_STATE, 0);
818 		pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
819 		codec_dbg(codec, "Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
820 	}
821 }
822 
823 /*
824  * Callbacks
825  */
826 
827 /* HBR should be Non-PCM, 8 channels */
828 #define is_hbr_format(format) \
829 	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
830 
831 static int hdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
832 			      bool hbr)
833 {
834 	int pinctl, new_pinctl;
835 
836 	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
837 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
838 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
839 
840 		if (pinctl < 0)
841 			return hbr ? -EINVAL : 0;
842 
843 		new_pinctl = pinctl & ~AC_PINCTL_EPT;
844 		if (hbr)
845 			new_pinctl |= AC_PINCTL_EPT_HBR;
846 		else
847 			new_pinctl |= AC_PINCTL_EPT_NATIVE;
848 
849 		codec_dbg(codec,
850 			  "hdmi_pin_hbr_setup: NID=0x%x, %spinctl=0x%x\n",
851 			    pin_nid,
852 			    pinctl == new_pinctl ? "" : "new-",
853 			    new_pinctl);
854 
855 		if (pinctl != new_pinctl)
856 			snd_hda_codec_write(codec, pin_nid, 0,
857 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
858 					    new_pinctl);
859 	} else if (hbr)
860 		return -EINVAL;
861 
862 	return 0;
863 }
864 
865 static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
866 			      hda_nid_t pin_nid, u32 stream_tag, int format)
867 {
868 	struct hdmi_spec *spec = codec->spec;
869 	int err;
870 
871 	err = spec->ops.pin_hbr_setup(codec, pin_nid, is_hbr_format(format));
872 
873 	if (err) {
874 		codec_dbg(codec, "hdmi_setup_stream: HBR is not supported\n");
875 		return err;
876 	}
877 
878 	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
879 	return 0;
880 }
881 
882 /* Try to find an available converter
883  * If pin_idx is less then zero, just try to find an available converter.
884  * Otherwise, try to find an available converter and get the cvt mux index
885  * of the pin.
886  */
887 static int hdmi_choose_cvt(struct hda_codec *codec,
888 			   int pin_idx, int *cvt_id)
889 {
890 	struct hdmi_spec *spec = codec->spec;
891 	struct hdmi_spec_per_pin *per_pin;
892 	struct hdmi_spec_per_cvt *per_cvt = NULL;
893 	int cvt_idx, mux_idx = 0;
894 
895 	/* pin_idx < 0 means no pin will be bound to the converter */
896 	if (pin_idx < 0)
897 		per_pin = NULL;
898 	else
899 		per_pin = get_pin(spec, pin_idx);
900 
901 	/* Dynamically assign converter to stream */
902 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
903 		per_cvt = get_cvt(spec, cvt_idx);
904 
905 		/* Must not already be assigned */
906 		if (per_cvt->assigned)
907 			continue;
908 		if (per_pin == NULL)
909 			break;
910 		/* Must be in pin's mux's list of converters */
911 		for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
912 			if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
913 				break;
914 		/* Not in mux list */
915 		if (mux_idx == per_pin->num_mux_nids)
916 			continue;
917 		break;
918 	}
919 
920 	/* No free converters */
921 	if (cvt_idx == spec->num_cvts)
922 		return -EBUSY;
923 
924 	if (per_pin != NULL)
925 		per_pin->mux_idx = mux_idx;
926 
927 	if (cvt_id)
928 		*cvt_id = cvt_idx;
929 
930 	return 0;
931 }
932 
933 /* Assure the pin select the right convetor */
934 static void intel_verify_pin_cvt_connect(struct hda_codec *codec,
935 			struct hdmi_spec_per_pin *per_pin)
936 {
937 	hda_nid_t pin_nid = per_pin->pin_nid;
938 	int mux_idx, curr;
939 
940 	mux_idx = per_pin->mux_idx;
941 	curr = snd_hda_codec_read(codec, pin_nid, 0,
942 					  AC_VERB_GET_CONNECT_SEL, 0);
943 	if (curr != mux_idx)
944 		snd_hda_codec_write_cache(codec, pin_nid, 0,
945 					    AC_VERB_SET_CONNECT_SEL,
946 					    mux_idx);
947 }
948 
949 /* get the mux index for the converter of the pins
950  * converter's mux index is the same for all pins on Intel platform
951  */
952 static int intel_cvt_id_to_mux_idx(struct hdmi_spec *spec,
953 			hda_nid_t cvt_nid)
954 {
955 	int i;
956 
957 	for (i = 0; i < spec->num_cvts; i++)
958 		if (spec->cvt_nids[i] == cvt_nid)
959 			return i;
960 	return -EINVAL;
961 }
962 
963 /* Intel HDMI workaround to fix audio routing issue:
964  * For some Intel display codecs, pins share the same connection list.
965  * So a conveter can be selected by multiple pins and playback on any of these
966  * pins will generate sound on the external display, because audio flows from
967  * the same converter to the display pipeline. Also muting one pin may make
968  * other pins have no sound output.
969  * So this function assures that an assigned converter for a pin is not selected
970  * by any other pins.
971  */
972 static void intel_not_share_assigned_cvt(struct hda_codec *codec,
973 			hda_nid_t pin_nid, int mux_idx)
974 {
975 	struct hdmi_spec *spec = codec->spec;
976 	hda_nid_t nid;
977 	int cvt_idx, curr;
978 	struct hdmi_spec_per_cvt *per_cvt;
979 
980 	/* configure all pins, including "no physical connection" ones */
981 	for_each_hda_codec_node(nid, codec) {
982 		unsigned int wid_caps = get_wcaps(codec, nid);
983 		unsigned int wid_type = get_wcaps_type(wid_caps);
984 
985 		if (wid_type != AC_WID_PIN)
986 			continue;
987 
988 		if (nid == pin_nid)
989 			continue;
990 
991 		curr = snd_hda_codec_read(codec, nid, 0,
992 					  AC_VERB_GET_CONNECT_SEL, 0);
993 		if (curr != mux_idx)
994 			continue;
995 
996 		/* choose an unassigned converter. The conveters in the
997 		 * connection list are in the same order as in the codec.
998 		 */
999 		for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
1000 			per_cvt = get_cvt(spec, cvt_idx);
1001 			if (!per_cvt->assigned) {
1002 				codec_dbg(codec,
1003 					  "choose cvt %d for pin nid %d\n",
1004 					cvt_idx, nid);
1005 				snd_hda_codec_write_cache(codec, nid, 0,
1006 					    AC_VERB_SET_CONNECT_SEL,
1007 					    cvt_idx);
1008 				break;
1009 			}
1010 		}
1011 	}
1012 }
1013 
1014 /* A wrapper of intel_not_share_asigned_cvt() */
1015 static void intel_not_share_assigned_cvt_nid(struct hda_codec *codec,
1016 			hda_nid_t pin_nid, hda_nid_t cvt_nid)
1017 {
1018 	int mux_idx;
1019 	struct hdmi_spec *spec = codec->spec;
1020 
1021 	/* On Intel platform, the mapping of converter nid to
1022 	 * mux index of the pins are always the same.
1023 	 * The pin nid may be 0, this means all pins will not
1024 	 * share the converter.
1025 	 */
1026 	mux_idx = intel_cvt_id_to_mux_idx(spec, cvt_nid);
1027 	if (mux_idx >= 0)
1028 		intel_not_share_assigned_cvt(codec, pin_nid, mux_idx);
1029 }
1030 
1031 /* skeleton caller of pin_cvt_fixup ops */
1032 static void pin_cvt_fixup(struct hda_codec *codec,
1033 			  struct hdmi_spec_per_pin *per_pin,
1034 			  hda_nid_t cvt_nid)
1035 {
1036 	struct hdmi_spec *spec = codec->spec;
1037 
1038 	if (spec->ops.pin_cvt_fixup)
1039 		spec->ops.pin_cvt_fixup(codec, per_pin, cvt_nid);
1040 }
1041 
1042 /* called in hdmi_pcm_open when no pin is assigned to the PCM
1043  * in dyn_pcm_assign mode.
1044  */
1045 static int hdmi_pcm_open_no_pin(struct hda_pcm_stream *hinfo,
1046 			 struct hda_codec *codec,
1047 			 struct snd_pcm_substream *substream)
1048 {
1049 	struct hdmi_spec *spec = codec->spec;
1050 	struct snd_pcm_runtime *runtime = substream->runtime;
1051 	int cvt_idx, pcm_idx;
1052 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1053 	int err;
1054 
1055 	pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1056 	if (pcm_idx < 0)
1057 		return -EINVAL;
1058 
1059 	err = hdmi_choose_cvt(codec, -1, &cvt_idx);
1060 	if (err)
1061 		return err;
1062 
1063 	per_cvt = get_cvt(spec, cvt_idx);
1064 	per_cvt->assigned = 1;
1065 	hinfo->nid = per_cvt->cvt_nid;
1066 
1067 	pin_cvt_fixup(codec, NULL, per_cvt->cvt_nid);
1068 
1069 	set_bit(pcm_idx, &spec->pcm_in_use);
1070 	/* todo: setup spdif ctls assign */
1071 
1072 	/* Initially set the converter's capabilities */
1073 	hinfo->channels_min = per_cvt->channels_min;
1074 	hinfo->channels_max = per_cvt->channels_max;
1075 	hinfo->rates = per_cvt->rates;
1076 	hinfo->formats = per_cvt->formats;
1077 	hinfo->maxbps = per_cvt->maxbps;
1078 
1079 	/* Store the updated parameters */
1080 	runtime->hw.channels_min = hinfo->channels_min;
1081 	runtime->hw.channels_max = hinfo->channels_max;
1082 	runtime->hw.formats = hinfo->formats;
1083 	runtime->hw.rates = hinfo->rates;
1084 
1085 	snd_pcm_hw_constraint_step(substream->runtime, 0,
1086 				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1087 	return 0;
1088 }
1089 
1090 /*
1091  * HDA PCM callbacks
1092  */
1093 static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
1094 			 struct hda_codec *codec,
1095 			 struct snd_pcm_substream *substream)
1096 {
1097 	struct hdmi_spec *spec = codec->spec;
1098 	struct snd_pcm_runtime *runtime = substream->runtime;
1099 	int pin_idx, cvt_idx, pcm_idx;
1100 	struct hdmi_spec_per_pin *per_pin;
1101 	struct hdmi_eld *eld;
1102 	struct hdmi_spec_per_cvt *per_cvt = NULL;
1103 	int err;
1104 
1105 	/* Validate hinfo */
1106 	pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1107 	if (pcm_idx < 0)
1108 		return -EINVAL;
1109 
1110 	mutex_lock(&spec->pcm_lock);
1111 	pin_idx = hinfo_to_pin_index(codec, hinfo);
1112 	if (!spec->dyn_pcm_assign) {
1113 		if (snd_BUG_ON(pin_idx < 0)) {
1114 			mutex_unlock(&spec->pcm_lock);
1115 			return -EINVAL;
1116 		}
1117 	} else {
1118 		/* no pin is assigned to the PCM
1119 		 * PA need pcm open successfully when probe
1120 		 */
1121 		if (pin_idx < 0) {
1122 			err = hdmi_pcm_open_no_pin(hinfo, codec, substream);
1123 			mutex_unlock(&spec->pcm_lock);
1124 			return err;
1125 		}
1126 	}
1127 
1128 	err = hdmi_choose_cvt(codec, pin_idx, &cvt_idx);
1129 	if (err < 0) {
1130 		mutex_unlock(&spec->pcm_lock);
1131 		return err;
1132 	}
1133 
1134 	per_cvt = get_cvt(spec, cvt_idx);
1135 	/* Claim converter */
1136 	per_cvt->assigned = 1;
1137 
1138 	set_bit(pcm_idx, &spec->pcm_in_use);
1139 	per_pin = get_pin(spec, pin_idx);
1140 	per_pin->cvt_nid = per_cvt->cvt_nid;
1141 	hinfo->nid = per_cvt->cvt_nid;
1142 
1143 	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1144 			    AC_VERB_SET_CONNECT_SEL,
1145 			    per_pin->mux_idx);
1146 
1147 	/* configure unused pins to choose other converters */
1148 	pin_cvt_fixup(codec, per_pin, 0);
1149 
1150 	snd_hda_spdif_ctls_assign(codec, pcm_idx, per_cvt->cvt_nid);
1151 
1152 	/* Initially set the converter's capabilities */
1153 	hinfo->channels_min = per_cvt->channels_min;
1154 	hinfo->channels_max = per_cvt->channels_max;
1155 	hinfo->rates = per_cvt->rates;
1156 	hinfo->formats = per_cvt->formats;
1157 	hinfo->maxbps = per_cvt->maxbps;
1158 
1159 	eld = &per_pin->sink_eld;
1160 	/* Restrict capabilities by ELD if this isn't disabled */
1161 	if (!static_hdmi_pcm && eld->eld_valid) {
1162 		snd_hdmi_eld_update_pcm_info(&eld->info, hinfo);
1163 		if (hinfo->channels_min > hinfo->channels_max ||
1164 		    !hinfo->rates || !hinfo->formats) {
1165 			per_cvt->assigned = 0;
1166 			hinfo->nid = 0;
1167 			snd_hda_spdif_ctls_unassign(codec, pcm_idx);
1168 			mutex_unlock(&spec->pcm_lock);
1169 			return -ENODEV;
1170 		}
1171 	}
1172 
1173 	mutex_unlock(&spec->pcm_lock);
1174 	/* Store the updated parameters */
1175 	runtime->hw.channels_min = hinfo->channels_min;
1176 	runtime->hw.channels_max = hinfo->channels_max;
1177 	runtime->hw.formats = hinfo->formats;
1178 	runtime->hw.rates = hinfo->rates;
1179 
1180 	snd_pcm_hw_constraint_step(substream->runtime, 0,
1181 				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1182 	return 0;
1183 }
1184 
1185 /*
1186  * HDA/HDMI auto parsing
1187  */
1188 static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
1189 {
1190 	struct hdmi_spec *spec = codec->spec;
1191 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
1192 	hda_nid_t pin_nid = per_pin->pin_nid;
1193 
1194 	if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
1195 		codec_warn(codec,
1196 			   "HDMI: pin %d wcaps %#x does not support connection list\n",
1197 			   pin_nid, get_wcaps(codec, pin_nid));
1198 		return -EINVAL;
1199 	}
1200 
1201 	per_pin->num_mux_nids = snd_hda_get_connections(codec, pin_nid,
1202 							per_pin->mux_nids,
1203 							HDA_MAX_CONNECTIONS);
1204 
1205 	return 0;
1206 }
1207 
1208 static int hdmi_find_pcm_slot(struct hdmi_spec *spec,
1209 				struct hdmi_spec_per_pin *per_pin)
1210 {
1211 	int i;
1212 
1213 	/* try the prefer PCM */
1214 	if (!test_bit(per_pin->pin_nid_idx, &spec->pcm_bitmap))
1215 		return per_pin->pin_nid_idx;
1216 
1217 	/* have a second try; check the "reserved area" over num_pins */
1218 	for (i = spec->num_pins; i < spec->pcm_used; i++) {
1219 		if (!test_bit(i, &spec->pcm_bitmap))
1220 			return i;
1221 	}
1222 
1223 	/* the last try; check the empty slots in pins */
1224 	for (i = 0; i < spec->num_pins; i++) {
1225 		if (!test_bit(i, &spec->pcm_bitmap))
1226 			return i;
1227 	}
1228 	return -EBUSY;
1229 }
1230 
1231 static void hdmi_attach_hda_pcm(struct hdmi_spec *spec,
1232 				struct hdmi_spec_per_pin *per_pin)
1233 {
1234 	int idx;
1235 
1236 	/* pcm already be attached to the pin */
1237 	if (per_pin->pcm)
1238 		return;
1239 	idx = hdmi_find_pcm_slot(spec, per_pin);
1240 	if (idx == -EBUSY)
1241 		return;
1242 	per_pin->pcm_idx = idx;
1243 	per_pin->pcm = get_hdmi_pcm(spec, idx);
1244 	set_bit(idx, &spec->pcm_bitmap);
1245 }
1246 
1247 static void hdmi_detach_hda_pcm(struct hdmi_spec *spec,
1248 				struct hdmi_spec_per_pin *per_pin)
1249 {
1250 	int idx;
1251 
1252 	/* pcm already be detached from the pin */
1253 	if (!per_pin->pcm)
1254 		return;
1255 	idx = per_pin->pcm_idx;
1256 	per_pin->pcm_idx = -1;
1257 	per_pin->pcm = NULL;
1258 	if (idx >= 0 && idx < spec->pcm_used)
1259 		clear_bit(idx, &spec->pcm_bitmap);
1260 }
1261 
1262 static int hdmi_get_pin_cvt_mux(struct hdmi_spec *spec,
1263 		struct hdmi_spec_per_pin *per_pin, hda_nid_t cvt_nid)
1264 {
1265 	int mux_idx;
1266 
1267 	for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
1268 		if (per_pin->mux_nids[mux_idx] == cvt_nid)
1269 			break;
1270 	return mux_idx;
1271 }
1272 
1273 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid);
1274 
1275 static void hdmi_pcm_setup_pin(struct hdmi_spec *spec,
1276 			   struct hdmi_spec_per_pin *per_pin)
1277 {
1278 	struct hda_codec *codec = per_pin->codec;
1279 	struct hda_pcm *pcm;
1280 	struct hda_pcm_stream *hinfo;
1281 	struct snd_pcm_substream *substream;
1282 	int mux_idx;
1283 	bool non_pcm;
1284 
1285 	if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
1286 		pcm = get_pcm_rec(spec, per_pin->pcm_idx);
1287 	else
1288 		return;
1289 	if (!test_bit(per_pin->pcm_idx, &spec->pcm_in_use))
1290 		return;
1291 
1292 	/* hdmi audio only uses playback and one substream */
1293 	hinfo = pcm->stream;
1294 	substream = pcm->pcm->streams[0].substream;
1295 
1296 	per_pin->cvt_nid = hinfo->nid;
1297 
1298 	mux_idx = hdmi_get_pin_cvt_mux(spec, per_pin, hinfo->nid);
1299 	if (mux_idx < per_pin->num_mux_nids)
1300 		snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
1301 				AC_VERB_SET_CONNECT_SEL,
1302 				mux_idx);
1303 	snd_hda_spdif_ctls_assign(codec, per_pin->pcm_idx, hinfo->nid);
1304 
1305 	non_pcm = check_non_pcm_per_cvt(codec, hinfo->nid);
1306 	if (substream->runtime)
1307 		per_pin->channels = substream->runtime->channels;
1308 	per_pin->setup = true;
1309 	per_pin->mux_idx = mux_idx;
1310 
1311 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1312 }
1313 
1314 static void hdmi_pcm_reset_pin(struct hdmi_spec *spec,
1315 			   struct hdmi_spec_per_pin *per_pin)
1316 {
1317 	if (per_pin->pcm_idx >= 0 && per_pin->pcm_idx < spec->pcm_used)
1318 		snd_hda_spdif_ctls_unassign(per_pin->codec, per_pin->pcm_idx);
1319 
1320 	per_pin->chmap_set = false;
1321 	memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1322 
1323 	per_pin->setup = false;
1324 	per_pin->channels = 0;
1325 }
1326 
1327 /* update per_pin ELD from the given new ELD;
1328  * setup info frame and notification accordingly
1329  */
1330 static void update_eld(struct hda_codec *codec,
1331 		       struct hdmi_spec_per_pin *per_pin,
1332 		       struct hdmi_eld *eld)
1333 {
1334 	struct hdmi_eld *pin_eld = &per_pin->sink_eld;
1335 	struct hdmi_spec *spec = codec->spec;
1336 	bool old_eld_valid = pin_eld->eld_valid;
1337 	bool eld_changed;
1338 	int pcm_idx = -1;
1339 
1340 	/* for monitor disconnection, save pcm_idx firstly */
1341 	pcm_idx = per_pin->pcm_idx;
1342 	if (spec->dyn_pcm_assign) {
1343 		if (eld->eld_valid) {
1344 			hdmi_attach_hda_pcm(spec, per_pin);
1345 			hdmi_pcm_setup_pin(spec, per_pin);
1346 		} else {
1347 			hdmi_pcm_reset_pin(spec, per_pin);
1348 			hdmi_detach_hda_pcm(spec, per_pin);
1349 		}
1350 	}
1351 	/* if pcm_idx == -1, it means this is in monitor connection event
1352 	 * we can get the correct pcm_idx now.
1353 	 */
1354 	if (pcm_idx == -1)
1355 		pcm_idx = per_pin->pcm_idx;
1356 
1357 	if (eld->eld_valid)
1358 		snd_hdmi_show_eld(codec, &eld->info);
1359 
1360 	eld_changed = (pin_eld->eld_valid != eld->eld_valid);
1361 	if (eld->eld_valid && pin_eld->eld_valid)
1362 		if (pin_eld->eld_size != eld->eld_size ||
1363 		    memcmp(pin_eld->eld_buffer, eld->eld_buffer,
1364 			   eld->eld_size) != 0)
1365 			eld_changed = true;
1366 
1367 	pin_eld->monitor_present = eld->monitor_present;
1368 	pin_eld->eld_valid = eld->eld_valid;
1369 	pin_eld->eld_size = eld->eld_size;
1370 	if (eld->eld_valid)
1371 		memcpy(pin_eld->eld_buffer, eld->eld_buffer, eld->eld_size);
1372 	pin_eld->info = eld->info;
1373 
1374 	/*
1375 	 * Re-setup pin and infoframe. This is needed e.g. when
1376 	 * - sink is first plugged-in
1377 	 * - transcoder can change during stream playback on Haswell
1378 	 *   and this can make HW reset converter selection on a pin.
1379 	 */
1380 	if (eld->eld_valid && !old_eld_valid && per_pin->setup) {
1381 		pin_cvt_fixup(codec, per_pin, 0);
1382 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
1383 	}
1384 
1385 	if (eld_changed && pcm_idx >= 0)
1386 		snd_ctl_notify(codec->card,
1387 			       SNDRV_CTL_EVENT_MASK_VALUE |
1388 			       SNDRV_CTL_EVENT_MASK_INFO,
1389 			       &get_hdmi_pcm(spec, pcm_idx)->eld_ctl->id);
1390 }
1391 
1392 /* update ELD and jack state via HD-audio verbs */
1393 static bool hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin,
1394 					 int repoll)
1395 {
1396 	struct hda_jack_tbl *jack;
1397 	struct hda_codec *codec = per_pin->codec;
1398 	struct hdmi_spec *spec = codec->spec;
1399 	struct hdmi_eld *eld = &spec->temp_eld;
1400 	hda_nid_t pin_nid = per_pin->pin_nid;
1401 	/*
1402 	 * Always execute a GetPinSense verb here, even when called from
1403 	 * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
1404 	 * response's PD bit is not the real PD value, but indicates that
1405 	 * the real PD value changed. An older version of the HD-audio
1406 	 * specification worked this way. Hence, we just ignore the data in
1407 	 * the unsolicited response to avoid custom WARs.
1408 	 */
1409 	int present;
1410 	bool ret;
1411 	bool do_repoll = false;
1412 
1413 	present = snd_hda_pin_sense(codec, pin_nid);
1414 
1415 	mutex_lock(&per_pin->lock);
1416 	eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
1417 	if (eld->monitor_present)
1418 		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
1419 	else
1420 		eld->eld_valid = false;
1421 
1422 	codec_dbg(codec,
1423 		"HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
1424 		codec->addr, pin_nid, eld->monitor_present, eld->eld_valid);
1425 
1426 	if (eld->eld_valid) {
1427 		if (spec->ops.pin_get_eld(codec, pin_nid, eld->eld_buffer,
1428 						     &eld->eld_size) < 0)
1429 			eld->eld_valid = false;
1430 		else {
1431 			if (snd_hdmi_parse_eld(codec, &eld->info, eld->eld_buffer,
1432 						    eld->eld_size) < 0)
1433 				eld->eld_valid = false;
1434 		}
1435 		if (!eld->eld_valid && repoll)
1436 			do_repoll = true;
1437 	}
1438 
1439 	if (do_repoll)
1440 		schedule_delayed_work(&per_pin->work, msecs_to_jiffies(300));
1441 	else
1442 		update_eld(codec, per_pin, eld);
1443 
1444 	ret = !repoll || !eld->monitor_present || eld->eld_valid;
1445 
1446 	jack = snd_hda_jack_tbl_get(codec, pin_nid);
1447 	if (jack)
1448 		jack->block_report = !ret;
1449 
1450 	mutex_unlock(&per_pin->lock);
1451 	return ret;
1452 }
1453 
1454 static struct snd_jack *pin_idx_to_jack(struct hda_codec *codec,
1455 				 struct hdmi_spec_per_pin *per_pin)
1456 {
1457 	struct hdmi_spec *spec = codec->spec;
1458 	struct snd_jack *jack = NULL;
1459 	struct hda_jack_tbl *jack_tbl;
1460 
1461 	/* if !dyn_pcm_assign, get jack from hda_jack_tbl
1462 	 * in !dyn_pcm_assign case, spec->pcm_rec[].jack is not
1463 	 * NULL even after snd_hda_jack_tbl_clear() is called to
1464 	 * free snd_jack. This may cause access invalid memory
1465 	 * when calling snd_jack_report
1466 	 */
1467 	if (per_pin->pcm_idx >= 0 && spec->dyn_pcm_assign)
1468 		jack = spec->pcm_rec[per_pin->pcm_idx].jack;
1469 	else if (!spec->dyn_pcm_assign) {
1470 		jack_tbl = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
1471 		if (jack_tbl)
1472 			jack = jack_tbl->jack;
1473 	}
1474 	return jack;
1475 }
1476 
1477 /* update ELD and jack state via audio component */
1478 static void sync_eld_via_acomp(struct hda_codec *codec,
1479 			       struct hdmi_spec_per_pin *per_pin)
1480 {
1481 	struct hdmi_spec *spec = codec->spec;
1482 	struct hdmi_eld *eld = &spec->temp_eld;
1483 	struct snd_jack *jack = NULL;
1484 	int size;
1485 
1486 	mutex_lock(&per_pin->lock);
1487 	eld->monitor_present = false;
1488 	size = snd_hdac_acomp_get_eld(&codec->core, per_pin->pin_nid,
1489 				      &eld->monitor_present, eld->eld_buffer,
1490 				      ELD_MAX_SIZE);
1491 	if (size > 0) {
1492 		size = min(size, ELD_MAX_SIZE);
1493 		if (snd_hdmi_parse_eld(codec, &eld->info,
1494 				       eld->eld_buffer, size) < 0)
1495 			size = -EINVAL;
1496 	}
1497 
1498 	if (size > 0) {
1499 		eld->eld_valid = true;
1500 		eld->eld_size = size;
1501 	} else {
1502 		eld->eld_valid = false;
1503 		eld->eld_size = 0;
1504 	}
1505 
1506 	/* pcm_idx >=0 before update_eld() means it is in monitor
1507 	 * disconnected event. Jack must be fetched before update_eld()
1508 	 */
1509 	jack = pin_idx_to_jack(codec, per_pin);
1510 	update_eld(codec, per_pin, eld);
1511 	if (jack == NULL)
1512 		jack = pin_idx_to_jack(codec, per_pin);
1513 	if (jack == NULL)
1514 		goto unlock;
1515 	snd_jack_report(jack,
1516 			eld->monitor_present ? SND_JACK_AVOUT : 0);
1517  unlock:
1518 	mutex_unlock(&per_pin->lock);
1519 }
1520 
1521 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
1522 {
1523 	struct hda_codec *codec = per_pin->codec;
1524 	struct hdmi_spec *spec = codec->spec;
1525 	int ret;
1526 
1527 	/* no temporary power up/down needed for component notifier */
1528 	if (!codec_has_acomp(codec))
1529 		snd_hda_power_up_pm(codec);
1530 
1531 	mutex_lock(&spec->pcm_lock);
1532 	if (codec_has_acomp(codec)) {
1533 		sync_eld_via_acomp(codec, per_pin);
1534 		ret = false; /* don't call snd_hda_jack_report_sync() */
1535 	} else {
1536 		ret = hdmi_present_sense_via_verbs(per_pin, repoll);
1537 	}
1538 	mutex_unlock(&spec->pcm_lock);
1539 
1540 	if (!codec_has_acomp(codec))
1541 		snd_hda_power_down_pm(codec);
1542 
1543 	return ret;
1544 }
1545 
1546 static void hdmi_repoll_eld(struct work_struct *work)
1547 {
1548 	struct hdmi_spec_per_pin *per_pin =
1549 	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
1550 
1551 	if (per_pin->repoll_count++ > 6)
1552 		per_pin->repoll_count = 0;
1553 
1554 	if (hdmi_present_sense(per_pin, per_pin->repoll_count))
1555 		snd_hda_jack_report_sync(per_pin->codec);
1556 }
1557 
1558 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
1559 					     hda_nid_t nid);
1560 
1561 static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
1562 {
1563 	struct hdmi_spec *spec = codec->spec;
1564 	unsigned int caps, config;
1565 	int pin_idx;
1566 	struct hdmi_spec_per_pin *per_pin;
1567 	int err;
1568 
1569 	caps = snd_hda_query_pin_caps(codec, pin_nid);
1570 	if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
1571 		return 0;
1572 
1573 	config = snd_hda_codec_get_pincfg(codec, pin_nid);
1574 	if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
1575 		return 0;
1576 
1577 	if (is_haswell_plus(codec))
1578 		intel_haswell_fixup_connect_list(codec, pin_nid);
1579 
1580 	pin_idx = spec->num_pins;
1581 	per_pin = snd_array_new(&spec->pins);
1582 	if (!per_pin)
1583 		return -ENOMEM;
1584 
1585 	per_pin->pin_nid = pin_nid;
1586 	per_pin->non_pcm = false;
1587 	if (spec->dyn_pcm_assign)
1588 		per_pin->pcm_idx = -1;
1589 	else {
1590 		per_pin->pcm = get_hdmi_pcm(spec, pin_idx);
1591 		per_pin->pcm_idx = pin_idx;
1592 	}
1593 	per_pin->pin_nid_idx = pin_idx;
1594 
1595 	err = hdmi_read_pin_conn(codec, pin_idx);
1596 	if (err < 0)
1597 		return err;
1598 
1599 	spec->num_pins++;
1600 
1601 	return 0;
1602 }
1603 
1604 static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1605 {
1606 	struct hdmi_spec *spec = codec->spec;
1607 	struct hdmi_spec_per_cvt *per_cvt;
1608 	unsigned int chans;
1609 	int err;
1610 
1611 	chans = get_wcaps(codec, cvt_nid);
1612 	chans = get_wcaps_channels(chans);
1613 
1614 	per_cvt = snd_array_new(&spec->cvts);
1615 	if (!per_cvt)
1616 		return -ENOMEM;
1617 
1618 	per_cvt->cvt_nid = cvt_nid;
1619 	per_cvt->channels_min = 2;
1620 	if (chans <= 16) {
1621 		per_cvt->channels_max = chans;
1622 		if (chans > spec->chmap.channels_max)
1623 			spec->chmap.channels_max = chans;
1624 	}
1625 
1626 	err = snd_hda_query_supported_pcm(codec, cvt_nid,
1627 					  &per_cvt->rates,
1628 					  &per_cvt->formats,
1629 					  &per_cvt->maxbps);
1630 	if (err < 0)
1631 		return err;
1632 
1633 	if (spec->num_cvts < ARRAY_SIZE(spec->cvt_nids))
1634 		spec->cvt_nids[spec->num_cvts] = cvt_nid;
1635 	spec->num_cvts++;
1636 
1637 	return 0;
1638 }
1639 
1640 static int hdmi_parse_codec(struct hda_codec *codec)
1641 {
1642 	hda_nid_t nid;
1643 	int i, nodes;
1644 
1645 	nodes = snd_hda_get_sub_nodes(codec, codec->core.afg, &nid);
1646 	if (!nid || nodes < 0) {
1647 		codec_warn(codec, "HDMI: failed to get afg sub nodes\n");
1648 		return -EINVAL;
1649 	}
1650 
1651 	for (i = 0; i < nodes; i++, nid++) {
1652 		unsigned int caps;
1653 		unsigned int type;
1654 
1655 		caps = get_wcaps(codec, nid);
1656 		type = get_wcaps_type(caps);
1657 
1658 		if (!(caps & AC_WCAP_DIGITAL))
1659 			continue;
1660 
1661 		switch (type) {
1662 		case AC_WID_AUD_OUT:
1663 			hdmi_add_cvt(codec, nid);
1664 			break;
1665 		case AC_WID_PIN:
1666 			hdmi_add_pin(codec, nid);
1667 			break;
1668 		}
1669 	}
1670 
1671 	return 0;
1672 }
1673 
1674 /*
1675  */
1676 static bool check_non_pcm_per_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
1677 {
1678 	struct hda_spdif_out *spdif;
1679 	bool non_pcm;
1680 
1681 	mutex_lock(&codec->spdif_mutex);
1682 	spdif = snd_hda_spdif_out_of_nid(codec, cvt_nid);
1683 	non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1684 	mutex_unlock(&codec->spdif_mutex);
1685 	return non_pcm;
1686 }
1687 
1688 /*
1689  * HDMI callbacks
1690  */
1691 
1692 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1693 					   struct hda_codec *codec,
1694 					   unsigned int stream_tag,
1695 					   unsigned int format,
1696 					   struct snd_pcm_substream *substream)
1697 {
1698 	hda_nid_t cvt_nid = hinfo->nid;
1699 	struct hdmi_spec *spec = codec->spec;
1700 	int pin_idx;
1701 	struct hdmi_spec_per_pin *per_pin;
1702 	hda_nid_t pin_nid;
1703 	struct snd_pcm_runtime *runtime = substream->runtime;
1704 	bool non_pcm;
1705 	int pinctl;
1706 	int err;
1707 
1708 	mutex_lock(&spec->pcm_lock);
1709 	pin_idx = hinfo_to_pin_index(codec, hinfo);
1710 	if (spec->dyn_pcm_assign && pin_idx < 0) {
1711 		/* when dyn_pcm_assign and pcm is not bound to a pin
1712 		 * skip pin setup and return 0 to make audio playback
1713 		 * be ongoing
1714 		 */
1715 		pin_cvt_fixup(codec, NULL, cvt_nid);
1716 		snd_hda_codec_setup_stream(codec, cvt_nid,
1717 					stream_tag, 0, format);
1718 		mutex_unlock(&spec->pcm_lock);
1719 		return 0;
1720 	}
1721 
1722 	if (snd_BUG_ON(pin_idx < 0)) {
1723 		mutex_unlock(&spec->pcm_lock);
1724 		return -EINVAL;
1725 	}
1726 	per_pin = get_pin(spec, pin_idx);
1727 	pin_nid = per_pin->pin_nid;
1728 
1729 	/* Verify pin:cvt selections to avoid silent audio after S3.
1730 	 * After S3, the audio driver restores pin:cvt selections
1731 	 * but this can happen before gfx is ready and such selection
1732 	 * is overlooked by HW. Thus multiple pins can share a same
1733 	 * default convertor and mute control will affect each other,
1734 	 * which can cause a resumed audio playback become silent
1735 	 * after S3.
1736 	 */
1737 	pin_cvt_fixup(codec, per_pin, 0);
1738 
1739 	/* Call sync_audio_rate to set the N/CTS/M manually if necessary */
1740 	/* Todo: add DP1.2 MST audio support later */
1741 	if (codec_has_acomp(codec))
1742 		snd_hdac_sync_audio_rate(&codec->core, pin_nid, runtime->rate);
1743 
1744 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1745 	mutex_lock(&per_pin->lock);
1746 	per_pin->channels = substream->runtime->channels;
1747 	per_pin->setup = true;
1748 
1749 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1750 	mutex_unlock(&per_pin->lock);
1751 	if (spec->dyn_pin_out) {
1752 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1753 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1754 		snd_hda_codec_write(codec, pin_nid, 0,
1755 				    AC_VERB_SET_PIN_WIDGET_CONTROL,
1756 				    pinctl | PIN_OUT);
1757 	}
1758 
1759 	err = spec->ops.setup_stream(codec, cvt_nid, pin_nid,
1760 				 stream_tag, format);
1761 	mutex_unlock(&spec->pcm_lock);
1762 	return err;
1763 }
1764 
1765 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1766 					     struct hda_codec *codec,
1767 					     struct snd_pcm_substream *substream)
1768 {
1769 	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1770 	return 0;
1771 }
1772 
1773 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
1774 			  struct hda_codec *codec,
1775 			  struct snd_pcm_substream *substream)
1776 {
1777 	struct hdmi_spec *spec = codec->spec;
1778 	int cvt_idx, pin_idx, pcm_idx;
1779 	struct hdmi_spec_per_cvt *per_cvt;
1780 	struct hdmi_spec_per_pin *per_pin;
1781 	int pinctl;
1782 
1783 	if (hinfo->nid) {
1784 		pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1785 		if (snd_BUG_ON(pcm_idx < 0))
1786 			return -EINVAL;
1787 		cvt_idx = cvt_nid_to_cvt_index(codec, hinfo->nid);
1788 		if (snd_BUG_ON(cvt_idx < 0))
1789 			return -EINVAL;
1790 		per_cvt = get_cvt(spec, cvt_idx);
1791 
1792 		snd_BUG_ON(!per_cvt->assigned);
1793 		per_cvt->assigned = 0;
1794 		hinfo->nid = 0;
1795 
1796 		mutex_lock(&spec->pcm_lock);
1797 		snd_hda_spdif_ctls_unassign(codec, pcm_idx);
1798 		clear_bit(pcm_idx, &spec->pcm_in_use);
1799 		pin_idx = hinfo_to_pin_index(codec, hinfo);
1800 		if (spec->dyn_pcm_assign && pin_idx < 0) {
1801 			mutex_unlock(&spec->pcm_lock);
1802 			return 0;
1803 		}
1804 
1805 		if (snd_BUG_ON(pin_idx < 0)) {
1806 			mutex_unlock(&spec->pcm_lock);
1807 			return -EINVAL;
1808 		}
1809 		per_pin = get_pin(spec, pin_idx);
1810 
1811 		if (spec->dyn_pin_out) {
1812 			pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
1813 					AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1814 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
1815 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
1816 					    pinctl & ~PIN_OUT);
1817 		}
1818 
1819 		mutex_lock(&per_pin->lock);
1820 		per_pin->chmap_set = false;
1821 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1822 
1823 		per_pin->setup = false;
1824 		per_pin->channels = 0;
1825 		mutex_unlock(&per_pin->lock);
1826 		mutex_unlock(&spec->pcm_lock);
1827 	}
1828 
1829 	return 0;
1830 }
1831 
1832 static const struct hda_pcm_ops generic_ops = {
1833 	.open = hdmi_pcm_open,
1834 	.close = hdmi_pcm_close,
1835 	.prepare = generic_hdmi_playback_pcm_prepare,
1836 	.cleanup = generic_hdmi_playback_pcm_cleanup,
1837 };
1838 
1839 static int hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx)
1840 {
1841 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
1842 	struct hdmi_spec *spec = codec->spec;
1843 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
1844 
1845 	if (!per_pin)
1846 		return 0;
1847 
1848 	return per_pin->sink_eld.info.spk_alloc;
1849 }
1850 
1851 static void hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
1852 					unsigned char *chmap)
1853 {
1854 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
1855 	struct hdmi_spec *spec = codec->spec;
1856 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
1857 
1858 	/* chmap is already set to 0 in caller */
1859 	if (!per_pin)
1860 		return;
1861 
1862 	memcpy(chmap, per_pin->chmap, ARRAY_SIZE(per_pin->chmap));
1863 }
1864 
1865 static void hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
1866 				unsigned char *chmap, int prepared)
1867 {
1868 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
1869 	struct hdmi_spec *spec = codec->spec;
1870 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
1871 
1872 	if (!per_pin)
1873 		return;
1874 	mutex_lock(&per_pin->lock);
1875 	per_pin->chmap_set = true;
1876 	memcpy(per_pin->chmap, chmap, ARRAY_SIZE(per_pin->chmap));
1877 	if (prepared)
1878 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
1879 	mutex_unlock(&per_pin->lock);
1880 }
1881 
1882 static bool is_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
1883 {
1884 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
1885 	struct hdmi_spec *spec = codec->spec;
1886 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
1887 
1888 	return per_pin ? true:false;
1889 }
1890 
1891 static int generic_hdmi_build_pcms(struct hda_codec *codec)
1892 {
1893 	struct hdmi_spec *spec = codec->spec;
1894 	int pin_idx;
1895 
1896 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1897 		struct hda_pcm *info;
1898 		struct hda_pcm_stream *pstr;
1899 
1900 		info = snd_hda_codec_pcm_new(codec, "HDMI %d", pin_idx);
1901 		if (!info)
1902 			return -ENOMEM;
1903 
1904 		spec->pcm_rec[pin_idx].pcm = info;
1905 		spec->pcm_used++;
1906 		info->pcm_type = HDA_PCM_TYPE_HDMI;
1907 		info->own_chmap = true;
1908 
1909 		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
1910 		pstr->substreams = 1;
1911 		pstr->ops = generic_ops;
1912 		/* other pstr fields are set in open */
1913 	}
1914 
1915 	return 0;
1916 }
1917 
1918 static void free_hdmi_jack_priv(struct snd_jack *jack)
1919 {
1920 	struct hdmi_pcm *pcm = jack->private_data;
1921 
1922 	pcm->jack = NULL;
1923 }
1924 
1925 static int add_hdmi_jack_kctl(struct hda_codec *codec,
1926 			       struct hdmi_spec *spec,
1927 			       int pcm_idx,
1928 			       const char *name)
1929 {
1930 	struct snd_jack *jack;
1931 	int err;
1932 
1933 	err = snd_jack_new(codec->card, name, SND_JACK_AVOUT, &jack,
1934 			   true, false);
1935 	if (err < 0)
1936 		return err;
1937 
1938 	spec->pcm_rec[pcm_idx].jack = jack;
1939 	jack->private_data = &spec->pcm_rec[pcm_idx];
1940 	jack->private_free = free_hdmi_jack_priv;
1941 	return 0;
1942 }
1943 
1944 static int generic_hdmi_build_jack(struct hda_codec *codec, int pcm_idx)
1945 {
1946 	char hdmi_str[32] = "HDMI/DP";
1947 	struct hdmi_spec *spec = codec->spec;
1948 	struct hdmi_spec_per_pin *per_pin;
1949 	struct hda_jack_tbl *jack;
1950 	int pcmdev = get_pcm_rec(spec, pcm_idx)->device;
1951 	bool phantom_jack;
1952 	int ret;
1953 
1954 	if (pcmdev > 0)
1955 		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
1956 
1957 	if (spec->dyn_pcm_assign)
1958 		return add_hdmi_jack_kctl(codec, spec, pcm_idx, hdmi_str);
1959 
1960 	/* for !dyn_pcm_assign, we still use hda_jack for compatibility */
1961 	/* if !dyn_pcm_assign, it must be non-MST mode.
1962 	 * This means pcms and pins are statically mapped.
1963 	 * And pcm_idx is pin_idx.
1964 	 */
1965 	per_pin = get_pin(spec, pcm_idx);
1966 	phantom_jack = !is_jack_detectable(codec, per_pin->pin_nid);
1967 	if (phantom_jack)
1968 		strncat(hdmi_str, " Phantom",
1969 			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
1970 	ret = snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str,
1971 				    phantom_jack);
1972 	if (ret < 0)
1973 		return ret;
1974 	jack = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
1975 	if (jack == NULL)
1976 		return 0;
1977 	/* assign jack->jack to pcm_rec[].jack to
1978 	 * align with dyn_pcm_assign mode
1979 	 */
1980 	spec->pcm_rec[pcm_idx].jack = jack->jack;
1981 	return 0;
1982 }
1983 
1984 static int generic_hdmi_build_controls(struct hda_codec *codec)
1985 {
1986 	struct hdmi_spec *spec = codec->spec;
1987 	int err;
1988 	int pin_idx, pcm_idx;
1989 
1990 
1991 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
1992 		err = generic_hdmi_build_jack(codec, pcm_idx);
1993 		if (err < 0)
1994 			return err;
1995 
1996 		/* create the spdif for each pcm
1997 		 * pin will be bound when monitor is connected
1998 		 */
1999 		if (spec->dyn_pcm_assign)
2000 			err = snd_hda_create_dig_out_ctls(codec,
2001 					  0, spec->cvt_nids[0],
2002 					  HDA_PCM_TYPE_HDMI);
2003 		else {
2004 			struct hdmi_spec_per_pin *per_pin =
2005 				get_pin(spec, pcm_idx);
2006 			err = snd_hda_create_dig_out_ctls(codec,
2007 						  per_pin->pin_nid,
2008 						  per_pin->mux_nids[0],
2009 						  HDA_PCM_TYPE_HDMI);
2010 		}
2011 		if (err < 0)
2012 			return err;
2013 		snd_hda_spdif_ctls_unassign(codec, pcm_idx);
2014 
2015 		/* add control for ELD Bytes */
2016 		err = hdmi_create_eld_ctl(codec, pcm_idx,
2017 					get_pcm_rec(spec, pcm_idx)->device);
2018 		if (err < 0)
2019 			return err;
2020 	}
2021 
2022 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2023 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2024 
2025 		hdmi_present_sense(per_pin, 0);
2026 	}
2027 
2028 	/* add channel maps */
2029 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2030 		struct hda_pcm *pcm;
2031 
2032 		pcm = get_pcm_rec(spec, pcm_idx);
2033 		if (!pcm || !pcm->pcm)
2034 			break;
2035 		err = snd_hdac_add_chmap_ctls(pcm->pcm, pcm_idx, &spec->chmap);
2036 		if (err < 0)
2037 			return err;
2038 	}
2039 
2040 	return 0;
2041 }
2042 
2043 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
2044 {
2045 	struct hdmi_spec *spec = codec->spec;
2046 	int pin_idx;
2047 
2048 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2049 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2050 
2051 		per_pin->codec = codec;
2052 		mutex_init(&per_pin->lock);
2053 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
2054 		eld_proc_new(per_pin, pin_idx);
2055 	}
2056 	return 0;
2057 }
2058 
2059 static int generic_hdmi_init(struct hda_codec *codec)
2060 {
2061 	struct hdmi_spec *spec = codec->spec;
2062 	int pin_idx;
2063 
2064 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2065 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2066 		hda_nid_t pin_nid = per_pin->pin_nid;
2067 
2068 		hdmi_init_pin(codec, pin_nid);
2069 		if (!codec_has_acomp(codec))
2070 			snd_hda_jack_detect_enable_callback(codec, pin_nid,
2071 				codec->jackpoll_interval > 0 ?
2072 				jack_callback : NULL);
2073 	}
2074 	return 0;
2075 }
2076 
2077 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
2078 {
2079 	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
2080 	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
2081 }
2082 
2083 static void hdmi_array_free(struct hdmi_spec *spec)
2084 {
2085 	snd_array_free(&spec->pins);
2086 	snd_array_free(&spec->cvts);
2087 }
2088 
2089 static void generic_spec_free(struct hda_codec *codec)
2090 {
2091 	struct hdmi_spec *spec = codec->spec;
2092 
2093 	if (spec) {
2094 		if (spec->i915_bound)
2095 			snd_hdac_i915_exit(&codec->bus->core);
2096 		hdmi_array_free(spec);
2097 		kfree(spec);
2098 		codec->spec = NULL;
2099 	}
2100 	codec->dp_mst = false;
2101 }
2102 
2103 static void generic_hdmi_free(struct hda_codec *codec)
2104 {
2105 	struct hdmi_spec *spec = codec->spec;
2106 	int pin_idx, pcm_idx;
2107 
2108 	if (codec_has_acomp(codec))
2109 		snd_hdac_i915_register_notifier(NULL);
2110 
2111 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2112 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2113 		cancel_delayed_work_sync(&per_pin->work);
2114 		eld_proc_free(per_pin);
2115 	}
2116 
2117 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2118 		if (spec->pcm_rec[pcm_idx].jack == NULL)
2119 			continue;
2120 		if (spec->dyn_pcm_assign)
2121 			snd_device_free(codec->card,
2122 					spec->pcm_rec[pcm_idx].jack);
2123 		else
2124 			spec->pcm_rec[pcm_idx].jack = NULL;
2125 	}
2126 
2127 	generic_spec_free(codec);
2128 }
2129 
2130 #ifdef CONFIG_PM
2131 static int generic_hdmi_resume(struct hda_codec *codec)
2132 {
2133 	struct hdmi_spec *spec = codec->spec;
2134 	int pin_idx;
2135 
2136 	codec->patch_ops.init(codec);
2137 	regcache_sync(codec->core.regmap);
2138 
2139 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2140 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2141 		hdmi_present_sense(per_pin, 1);
2142 	}
2143 	return 0;
2144 }
2145 #endif
2146 
2147 static const struct hda_codec_ops generic_hdmi_patch_ops = {
2148 	.init			= generic_hdmi_init,
2149 	.free			= generic_hdmi_free,
2150 	.build_pcms		= generic_hdmi_build_pcms,
2151 	.build_controls		= generic_hdmi_build_controls,
2152 	.unsol_event		= hdmi_unsol_event,
2153 #ifdef CONFIG_PM
2154 	.resume			= generic_hdmi_resume,
2155 #endif
2156 };
2157 
2158 static const struct hdmi_ops generic_standard_hdmi_ops = {
2159 	.pin_get_eld				= snd_hdmi_get_eld,
2160 	.pin_setup_infoframe			= hdmi_pin_setup_infoframe,
2161 	.pin_hbr_setup				= hdmi_pin_hbr_setup,
2162 	.setup_stream				= hdmi_setup_stream,
2163 };
2164 
2165 /* allocate codec->spec and assign/initialize generic parser ops */
2166 static int alloc_generic_hdmi(struct hda_codec *codec)
2167 {
2168 	struct hdmi_spec *spec;
2169 
2170 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2171 	if (!spec)
2172 		return -ENOMEM;
2173 
2174 	spec->ops = generic_standard_hdmi_ops;
2175 	mutex_init(&spec->pcm_lock);
2176 	snd_hdac_register_chmap_ops(&codec->core, &spec->chmap);
2177 
2178 	spec->chmap.ops.get_chmap = hdmi_get_chmap;
2179 	spec->chmap.ops.set_chmap = hdmi_set_chmap;
2180 	spec->chmap.ops.is_pcm_attached = is_hdmi_pcm_attached;
2181 	spec->chmap.ops.get_spk_alloc = hdmi_get_spk_alloc,
2182 
2183 	codec->spec = spec;
2184 	hdmi_array_init(spec, 4);
2185 
2186 	codec->patch_ops = generic_hdmi_patch_ops;
2187 
2188 	return 0;
2189 }
2190 
2191 /* generic HDMI parser */
2192 static int patch_generic_hdmi(struct hda_codec *codec)
2193 {
2194 	int err;
2195 
2196 	err = alloc_generic_hdmi(codec);
2197 	if (err < 0)
2198 		return err;
2199 
2200 	err = hdmi_parse_codec(codec);
2201 	if (err < 0) {
2202 		generic_spec_free(codec);
2203 		return err;
2204 	}
2205 
2206 	generic_hdmi_init_per_pins(codec);
2207 	return 0;
2208 }
2209 
2210 /*
2211  * Intel codec parsers and helpers
2212  */
2213 
2214 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
2215 					     hda_nid_t nid)
2216 {
2217 	struct hdmi_spec *spec = codec->spec;
2218 	hda_nid_t conns[4];
2219 	int nconns;
2220 
2221 	nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
2222 	if (nconns == spec->num_cvts &&
2223 	    !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
2224 		return;
2225 
2226 	/* override pins connection list */
2227 	codec_dbg(codec, "hdmi: haswell: override pin connection 0x%x\n", nid);
2228 	snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
2229 }
2230 
2231 #define INTEL_VENDOR_NID 0x08
2232 #define INTEL_GET_VENDOR_VERB 0xf81
2233 #define INTEL_SET_VENDOR_VERB 0x781
2234 #define INTEL_EN_DP12			0x02 /* enable DP 1.2 features */
2235 #define INTEL_EN_ALL_PIN_CVTS	0x01 /* enable 2nd & 3rd pins and convertors */
2236 
2237 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
2238 					  bool update_tree)
2239 {
2240 	unsigned int vendor_param;
2241 
2242 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2243 				INTEL_GET_VENDOR_VERB, 0);
2244 	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
2245 		return;
2246 
2247 	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
2248 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2249 				INTEL_SET_VENDOR_VERB, vendor_param);
2250 	if (vendor_param == -1)
2251 		return;
2252 
2253 	if (update_tree)
2254 		snd_hda_codec_update_widgets(codec);
2255 }
2256 
2257 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
2258 {
2259 	unsigned int vendor_param;
2260 
2261 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2262 				INTEL_GET_VENDOR_VERB, 0);
2263 	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
2264 		return;
2265 
2266 	/* enable DP1.2 mode */
2267 	vendor_param |= INTEL_EN_DP12;
2268 	snd_hdac_regmap_add_vendor_verb(&codec->core, INTEL_SET_VENDOR_VERB);
2269 	snd_hda_codec_write_cache(codec, INTEL_VENDOR_NID, 0,
2270 				INTEL_SET_VENDOR_VERB, vendor_param);
2271 }
2272 
2273 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
2274  * Otherwise you may get severe h/w communication errors.
2275  */
2276 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2277 				unsigned int power_state)
2278 {
2279 	if (power_state == AC_PWRST_D0) {
2280 		intel_haswell_enable_all_pins(codec, false);
2281 		intel_haswell_fixup_enable_dp12(codec);
2282 	}
2283 
2284 	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
2285 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
2286 }
2287 
2288 static void intel_pin_eld_notify(void *audio_ptr, int port)
2289 {
2290 	struct hda_codec *codec = audio_ptr;
2291 	int pin_nid;
2292 
2293 	/* we assume only from port-B to port-D */
2294 	if (port < 1 || port > 3)
2295 		return;
2296 
2297 	switch (codec->core.vendor_id) {
2298 	case 0x80860054: /* ILK */
2299 	case 0x80862804: /* ILK */
2300 	case 0x80862882: /* VLV */
2301 		pin_nid = port + 0x03;
2302 		break;
2303 	default:
2304 		pin_nid = port + 0x04;
2305 		break;
2306 	}
2307 
2308 	/* skip notification during system suspend (but not in runtime PM);
2309 	 * the state will be updated at resume
2310 	 */
2311 	if (snd_power_get_state(codec->card) != SNDRV_CTL_POWER_D0)
2312 		return;
2313 	/* ditto during suspend/resume process itself */
2314 	if (atomic_read(&(codec)->core.in_pm))
2315 		return;
2316 
2317 	snd_hdac_i915_set_bclk(&codec->bus->core);
2318 	check_presence_and_report(codec, pin_nid);
2319 }
2320 
2321 /* register i915 component pin_eld_notify callback */
2322 static void register_i915_notifier(struct hda_codec *codec)
2323 {
2324 	struct hdmi_spec *spec = codec->spec;
2325 
2326 	spec->use_acomp_notifier = true;
2327 	spec->i915_audio_ops.audio_ptr = codec;
2328 	/* intel_audio_codec_enable() or intel_audio_codec_disable()
2329 	 * will call pin_eld_notify with using audio_ptr pointer
2330 	 * We need make sure audio_ptr is really setup
2331 	 */
2332 	wmb();
2333 	spec->i915_audio_ops.pin_eld_notify = intel_pin_eld_notify;
2334 	snd_hdac_i915_register_notifier(&spec->i915_audio_ops);
2335 }
2336 
2337 /* setup_stream ops override for HSW+ */
2338 static int i915_hsw_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
2339 				 hda_nid_t pin_nid, u32 stream_tag, int format)
2340 {
2341 	haswell_verify_D0(codec, cvt_nid, pin_nid);
2342 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
2343 }
2344 
2345 /* pin_cvt_fixup ops override for HSW+ and VLV+ */
2346 static void i915_pin_cvt_fixup(struct hda_codec *codec,
2347 			       struct hdmi_spec_per_pin *per_pin,
2348 			       hda_nid_t cvt_nid)
2349 {
2350 	if (per_pin) {
2351 		intel_verify_pin_cvt_connect(codec, per_pin);
2352 		intel_not_share_assigned_cvt(codec, per_pin->pin_nid,
2353 					     per_pin->mux_idx);
2354 	} else {
2355 		intel_not_share_assigned_cvt_nid(codec, 0, cvt_nid);
2356 	}
2357 }
2358 
2359 /* Intel Haswell and onwards; audio component with eld notifier */
2360 static int patch_i915_hsw_hdmi(struct hda_codec *codec)
2361 {
2362 	struct hdmi_spec *spec;
2363 	int err;
2364 
2365 	/* HSW+ requires i915 binding */
2366 	if (!codec->bus->core.audio_component) {
2367 		codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n");
2368 		return -ENODEV;
2369 	}
2370 
2371 	err = alloc_generic_hdmi(codec);
2372 	if (err < 0)
2373 		return err;
2374 	spec = codec->spec;
2375 
2376 	intel_haswell_enable_all_pins(codec, true);
2377 	intel_haswell_fixup_enable_dp12(codec);
2378 
2379 	/* For Haswell/Broadwell, the controller is also in the power well and
2380 	 * can cover the codec power request, and so need not set this flag.
2381 	 */
2382 	if (!is_haswell(codec) && !is_broadwell(codec))
2383 		codec->core.link_power_control = 1;
2384 
2385 	codec->patch_ops.set_power_state = haswell_set_power_state;
2386 	codec->dp_mst = true;
2387 	codec->depop_delay = 0;
2388 	codec->auto_runtime_pm = 1;
2389 
2390 	spec->ops.setup_stream = i915_hsw_setup_stream;
2391 	spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
2392 
2393 	err = hdmi_parse_codec(codec);
2394 	if (err < 0) {
2395 		generic_spec_free(codec);
2396 		return err;
2397 	}
2398 
2399 	generic_hdmi_init_per_pins(codec);
2400 	register_i915_notifier(codec);
2401 	return 0;
2402 }
2403 
2404 /* Intel Baytrail and Braswell; with eld notifier */
2405 static int patch_i915_byt_hdmi(struct hda_codec *codec)
2406 {
2407 	struct hdmi_spec *spec;
2408 	int err;
2409 
2410 	/* requires i915 binding */
2411 	if (!codec->bus->core.audio_component) {
2412 		codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n");
2413 		return -ENODEV;
2414 	}
2415 
2416 	err = alloc_generic_hdmi(codec);
2417 	if (err < 0)
2418 		return err;
2419 	spec = codec->spec;
2420 
2421 	/* For Valleyview/Cherryview, only the display codec is in the display
2422 	 * power well and can use link_power ops to request/release the power.
2423 	 */
2424 	codec->core.link_power_control = 1;
2425 
2426 	codec->depop_delay = 0;
2427 	codec->auto_runtime_pm = 1;
2428 
2429 	spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
2430 
2431 	err = hdmi_parse_codec(codec);
2432 	if (err < 0) {
2433 		generic_spec_free(codec);
2434 		return err;
2435 	}
2436 
2437 	generic_hdmi_init_per_pins(codec);
2438 	register_i915_notifier(codec);
2439 	return 0;
2440 }
2441 
2442 /* Intel IronLake, SandyBridge and IvyBridge; with eld notifier */
2443 static int patch_i915_cpt_hdmi(struct hda_codec *codec)
2444 {
2445 	struct hdmi_spec *spec;
2446 	int err;
2447 
2448 	/* no i915 component should have been bound before this */
2449 	if (WARN_ON(codec->bus->core.audio_component))
2450 		return -EBUSY;
2451 
2452 	err = alloc_generic_hdmi(codec);
2453 	if (err < 0)
2454 		return err;
2455 	spec = codec->spec;
2456 
2457 	/* Try to bind with i915 now */
2458 	err = snd_hdac_i915_init(&codec->bus->core);
2459 	if (err < 0)
2460 		goto error;
2461 	spec->i915_bound = true;
2462 
2463 	err = hdmi_parse_codec(codec);
2464 	if (err < 0)
2465 		goto error;
2466 
2467 	generic_hdmi_init_per_pins(codec);
2468 	register_i915_notifier(codec);
2469 	return 0;
2470 
2471  error:
2472 	generic_spec_free(codec);
2473 	return err;
2474 }
2475 
2476 /*
2477  * Shared non-generic implementations
2478  */
2479 
2480 static int simple_playback_build_pcms(struct hda_codec *codec)
2481 {
2482 	struct hdmi_spec *spec = codec->spec;
2483 	struct hda_pcm *info;
2484 	unsigned int chans;
2485 	struct hda_pcm_stream *pstr;
2486 	struct hdmi_spec_per_cvt *per_cvt;
2487 
2488 	per_cvt = get_cvt(spec, 0);
2489 	chans = get_wcaps(codec, per_cvt->cvt_nid);
2490 	chans = get_wcaps_channels(chans);
2491 
2492 	info = snd_hda_codec_pcm_new(codec, "HDMI 0");
2493 	if (!info)
2494 		return -ENOMEM;
2495 	spec->pcm_rec[0].pcm = info;
2496 	info->pcm_type = HDA_PCM_TYPE_HDMI;
2497 	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2498 	*pstr = spec->pcm_playback;
2499 	pstr->nid = per_cvt->cvt_nid;
2500 	if (pstr->channels_max <= 2 && chans && chans <= 16)
2501 		pstr->channels_max = chans;
2502 
2503 	return 0;
2504 }
2505 
2506 /* unsolicited event for jack sensing */
2507 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2508 				    unsigned int res)
2509 {
2510 	snd_hda_jack_set_dirty_all(codec);
2511 	snd_hda_jack_report_sync(codec);
2512 }
2513 
2514 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2515  * as long as spec->pins[] is set correctly
2516  */
2517 #define simple_hdmi_build_jack	generic_hdmi_build_jack
2518 
2519 static int simple_playback_build_controls(struct hda_codec *codec)
2520 {
2521 	struct hdmi_spec *spec = codec->spec;
2522 	struct hdmi_spec_per_cvt *per_cvt;
2523 	int err;
2524 
2525 	per_cvt = get_cvt(spec, 0);
2526 	err = snd_hda_create_dig_out_ctls(codec, per_cvt->cvt_nid,
2527 					  per_cvt->cvt_nid,
2528 					  HDA_PCM_TYPE_HDMI);
2529 	if (err < 0)
2530 		return err;
2531 	return simple_hdmi_build_jack(codec, 0);
2532 }
2533 
2534 static int simple_playback_init(struct hda_codec *codec)
2535 {
2536 	struct hdmi_spec *spec = codec->spec;
2537 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2538 	hda_nid_t pin = per_pin->pin_nid;
2539 
2540 	snd_hda_codec_write(codec, pin, 0,
2541 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2542 	/* some codecs require to unmute the pin */
2543 	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2544 		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2545 				    AMP_OUT_UNMUTE);
2546 	snd_hda_jack_detect_enable(codec, pin);
2547 	return 0;
2548 }
2549 
2550 static void simple_playback_free(struct hda_codec *codec)
2551 {
2552 	struct hdmi_spec *spec = codec->spec;
2553 
2554 	hdmi_array_free(spec);
2555 	kfree(spec);
2556 }
2557 
2558 /*
2559  * Nvidia specific implementations
2560  */
2561 
2562 #define Nv_VERB_SET_Channel_Allocation          0xF79
2563 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2564 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2565 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2566 
2567 #define nvhdmi_master_con_nid_7x	0x04
2568 #define nvhdmi_master_pin_nid_7x	0x05
2569 
2570 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2571 	/*front, rear, clfe, rear_surr */
2572 	0x6, 0x8, 0xa, 0xc,
2573 };
2574 
2575 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2576 	/* set audio protect on */
2577 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2578 	/* enable digital output on pin widget */
2579 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2580 	{} /* terminator */
2581 };
2582 
2583 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2584 	/* set audio protect on */
2585 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2586 	/* enable digital output on pin widget */
2587 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2588 	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2589 	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2590 	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2591 	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2592 	{} /* terminator */
2593 };
2594 
2595 #ifdef LIMITED_RATE_FMT_SUPPORT
2596 /* support only the safe format and rate */
2597 #define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
2598 #define SUPPORTED_MAXBPS	16
2599 #define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
2600 #else
2601 /* support all rates and formats */
2602 #define SUPPORTED_RATES \
2603 	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2604 	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2605 	 SNDRV_PCM_RATE_192000)
2606 #define SUPPORTED_MAXBPS	24
2607 #define SUPPORTED_FORMATS \
2608 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2609 #endif
2610 
2611 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2612 {
2613 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2614 	return 0;
2615 }
2616 
2617 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2618 {
2619 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2620 	return 0;
2621 }
2622 
2623 static unsigned int channels_2_6_8[] = {
2624 	2, 6, 8
2625 };
2626 
2627 static unsigned int channels_2_8[] = {
2628 	2, 8
2629 };
2630 
2631 static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2632 	.count = ARRAY_SIZE(channels_2_6_8),
2633 	.list = channels_2_6_8,
2634 	.mask = 0,
2635 };
2636 
2637 static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2638 	.count = ARRAY_SIZE(channels_2_8),
2639 	.list = channels_2_8,
2640 	.mask = 0,
2641 };
2642 
2643 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2644 				    struct hda_codec *codec,
2645 				    struct snd_pcm_substream *substream)
2646 {
2647 	struct hdmi_spec *spec = codec->spec;
2648 	struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2649 
2650 	switch (codec->preset->vendor_id) {
2651 	case 0x10de0002:
2652 	case 0x10de0003:
2653 	case 0x10de0005:
2654 	case 0x10de0006:
2655 		hw_constraints_channels = &hw_constraints_2_8_channels;
2656 		break;
2657 	case 0x10de0007:
2658 		hw_constraints_channels = &hw_constraints_2_6_8_channels;
2659 		break;
2660 	default:
2661 		break;
2662 	}
2663 
2664 	if (hw_constraints_channels != NULL) {
2665 		snd_pcm_hw_constraint_list(substream->runtime, 0,
2666 				SNDRV_PCM_HW_PARAM_CHANNELS,
2667 				hw_constraints_channels);
2668 	} else {
2669 		snd_pcm_hw_constraint_step(substream->runtime, 0,
2670 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2671 	}
2672 
2673 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2674 }
2675 
2676 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2677 				     struct hda_codec *codec,
2678 				     struct snd_pcm_substream *substream)
2679 {
2680 	struct hdmi_spec *spec = codec->spec;
2681 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2682 }
2683 
2684 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2685 				       struct hda_codec *codec,
2686 				       unsigned int stream_tag,
2687 				       unsigned int format,
2688 				       struct snd_pcm_substream *substream)
2689 {
2690 	struct hdmi_spec *spec = codec->spec;
2691 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2692 					     stream_tag, format, substream);
2693 }
2694 
2695 static const struct hda_pcm_stream simple_pcm_playback = {
2696 	.substreams = 1,
2697 	.channels_min = 2,
2698 	.channels_max = 2,
2699 	.ops = {
2700 		.open = simple_playback_pcm_open,
2701 		.close = simple_playback_pcm_close,
2702 		.prepare = simple_playback_pcm_prepare
2703 	},
2704 };
2705 
2706 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2707 	.build_controls = simple_playback_build_controls,
2708 	.build_pcms = simple_playback_build_pcms,
2709 	.init = simple_playback_init,
2710 	.free = simple_playback_free,
2711 	.unsol_event = simple_hdmi_unsol_event,
2712 };
2713 
2714 static int patch_simple_hdmi(struct hda_codec *codec,
2715 			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
2716 {
2717 	struct hdmi_spec *spec;
2718 	struct hdmi_spec_per_cvt *per_cvt;
2719 	struct hdmi_spec_per_pin *per_pin;
2720 
2721 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2722 	if (!spec)
2723 		return -ENOMEM;
2724 
2725 	codec->spec = spec;
2726 	hdmi_array_init(spec, 1);
2727 
2728 	spec->multiout.num_dacs = 0;  /* no analog */
2729 	spec->multiout.max_channels = 2;
2730 	spec->multiout.dig_out_nid = cvt_nid;
2731 	spec->num_cvts = 1;
2732 	spec->num_pins = 1;
2733 	per_pin = snd_array_new(&spec->pins);
2734 	per_cvt = snd_array_new(&spec->cvts);
2735 	if (!per_pin || !per_cvt) {
2736 		simple_playback_free(codec);
2737 		return -ENOMEM;
2738 	}
2739 	per_cvt->cvt_nid = cvt_nid;
2740 	per_pin->pin_nid = pin_nid;
2741 	spec->pcm_playback = simple_pcm_playback;
2742 
2743 	codec->patch_ops = simple_hdmi_patch_ops;
2744 
2745 	return 0;
2746 }
2747 
2748 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2749 						    int channels)
2750 {
2751 	unsigned int chanmask;
2752 	int chan = channels ? (channels - 1) : 1;
2753 
2754 	switch (channels) {
2755 	default:
2756 	case 0:
2757 	case 2:
2758 		chanmask = 0x00;
2759 		break;
2760 	case 4:
2761 		chanmask = 0x08;
2762 		break;
2763 	case 6:
2764 		chanmask = 0x0b;
2765 		break;
2766 	case 8:
2767 		chanmask = 0x13;
2768 		break;
2769 	}
2770 
2771 	/* Set the audio infoframe channel allocation and checksum fields.  The
2772 	 * channel count is computed implicitly by the hardware. */
2773 	snd_hda_codec_write(codec, 0x1, 0,
2774 			Nv_VERB_SET_Channel_Allocation, chanmask);
2775 
2776 	snd_hda_codec_write(codec, 0x1, 0,
2777 			Nv_VERB_SET_Info_Frame_Checksum,
2778 			(0x71 - chan - chanmask));
2779 }
2780 
2781 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
2782 				   struct hda_codec *codec,
2783 				   struct snd_pcm_substream *substream)
2784 {
2785 	struct hdmi_spec *spec = codec->spec;
2786 	int i;
2787 
2788 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
2789 			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
2790 	for (i = 0; i < 4; i++) {
2791 		/* set the stream id */
2792 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2793 				AC_VERB_SET_CHANNEL_STREAMID, 0);
2794 		/* set the stream format */
2795 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2796 				AC_VERB_SET_STREAM_FORMAT, 0);
2797 	}
2798 
2799 	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
2800 	 * streams are disabled. */
2801 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2802 
2803 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2804 }
2805 
2806 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
2807 				     struct hda_codec *codec,
2808 				     unsigned int stream_tag,
2809 				     unsigned int format,
2810 				     struct snd_pcm_substream *substream)
2811 {
2812 	int chs;
2813 	unsigned int dataDCC2, channel_id;
2814 	int i;
2815 	struct hdmi_spec *spec = codec->spec;
2816 	struct hda_spdif_out *spdif;
2817 	struct hdmi_spec_per_cvt *per_cvt;
2818 
2819 	mutex_lock(&codec->spdif_mutex);
2820 	per_cvt = get_cvt(spec, 0);
2821 	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
2822 
2823 	chs = substream->runtime->channels;
2824 
2825 	dataDCC2 = 0x2;
2826 
2827 	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2828 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
2829 		snd_hda_codec_write(codec,
2830 				nvhdmi_master_con_nid_7x,
2831 				0,
2832 				AC_VERB_SET_DIGI_CONVERT_1,
2833 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2834 
2835 	/* set the stream id */
2836 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2837 			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
2838 
2839 	/* set the stream format */
2840 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2841 			AC_VERB_SET_STREAM_FORMAT, format);
2842 
2843 	/* turn on again (if needed) */
2844 	/* enable and set the channel status audio/data flag */
2845 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
2846 		snd_hda_codec_write(codec,
2847 				nvhdmi_master_con_nid_7x,
2848 				0,
2849 				AC_VERB_SET_DIGI_CONVERT_1,
2850 				spdif->ctls & 0xff);
2851 		snd_hda_codec_write(codec,
2852 				nvhdmi_master_con_nid_7x,
2853 				0,
2854 				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2855 	}
2856 
2857 	for (i = 0; i < 4; i++) {
2858 		if (chs == 2)
2859 			channel_id = 0;
2860 		else
2861 			channel_id = i * 2;
2862 
2863 		/* turn off SPDIF once;
2864 		 *otherwise the IEC958 bits won't be updated
2865 		 */
2866 		if (codec->spdif_status_reset &&
2867 		(spdif->ctls & AC_DIG1_ENABLE))
2868 			snd_hda_codec_write(codec,
2869 				nvhdmi_con_nids_7x[i],
2870 				0,
2871 				AC_VERB_SET_DIGI_CONVERT_1,
2872 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2873 		/* set the stream id */
2874 		snd_hda_codec_write(codec,
2875 				nvhdmi_con_nids_7x[i],
2876 				0,
2877 				AC_VERB_SET_CHANNEL_STREAMID,
2878 				(stream_tag << 4) | channel_id);
2879 		/* set the stream format */
2880 		snd_hda_codec_write(codec,
2881 				nvhdmi_con_nids_7x[i],
2882 				0,
2883 				AC_VERB_SET_STREAM_FORMAT,
2884 				format);
2885 		/* turn on again (if needed) */
2886 		/* enable and set the channel status audio/data flag */
2887 		if (codec->spdif_status_reset &&
2888 		(spdif->ctls & AC_DIG1_ENABLE)) {
2889 			snd_hda_codec_write(codec,
2890 					nvhdmi_con_nids_7x[i],
2891 					0,
2892 					AC_VERB_SET_DIGI_CONVERT_1,
2893 					spdif->ctls & 0xff);
2894 			snd_hda_codec_write(codec,
2895 					nvhdmi_con_nids_7x[i],
2896 					0,
2897 					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2898 		}
2899 	}
2900 
2901 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
2902 
2903 	mutex_unlock(&codec->spdif_mutex);
2904 	return 0;
2905 }
2906 
2907 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
2908 	.substreams = 1,
2909 	.channels_min = 2,
2910 	.channels_max = 8,
2911 	.nid = nvhdmi_master_con_nid_7x,
2912 	.rates = SUPPORTED_RATES,
2913 	.maxbps = SUPPORTED_MAXBPS,
2914 	.formats = SUPPORTED_FORMATS,
2915 	.ops = {
2916 		.open = simple_playback_pcm_open,
2917 		.close = nvhdmi_8ch_7x_pcm_close,
2918 		.prepare = nvhdmi_8ch_7x_pcm_prepare
2919 	},
2920 };
2921 
2922 static int patch_nvhdmi_2ch(struct hda_codec *codec)
2923 {
2924 	struct hdmi_spec *spec;
2925 	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
2926 				    nvhdmi_master_pin_nid_7x);
2927 	if (err < 0)
2928 		return err;
2929 
2930 	codec->patch_ops.init = nvhdmi_7x_init_2ch;
2931 	/* override the PCM rates, etc, as the codec doesn't give full list */
2932 	spec = codec->spec;
2933 	spec->pcm_playback.rates = SUPPORTED_RATES;
2934 	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
2935 	spec->pcm_playback.formats = SUPPORTED_FORMATS;
2936 	return 0;
2937 }
2938 
2939 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
2940 {
2941 	struct hdmi_spec *spec = codec->spec;
2942 	int err = simple_playback_build_pcms(codec);
2943 	if (!err) {
2944 		struct hda_pcm *info = get_pcm_rec(spec, 0);
2945 		info->own_chmap = true;
2946 	}
2947 	return err;
2948 }
2949 
2950 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
2951 {
2952 	struct hdmi_spec *spec = codec->spec;
2953 	struct hda_pcm *info;
2954 	struct snd_pcm_chmap *chmap;
2955 	int err;
2956 
2957 	err = simple_playback_build_controls(codec);
2958 	if (err < 0)
2959 		return err;
2960 
2961 	/* add channel maps */
2962 	info = get_pcm_rec(spec, 0);
2963 	err = snd_pcm_add_chmap_ctls(info->pcm,
2964 				     SNDRV_PCM_STREAM_PLAYBACK,
2965 				     snd_pcm_alt_chmaps, 8, 0, &chmap);
2966 	if (err < 0)
2967 		return err;
2968 	switch (codec->preset->vendor_id) {
2969 	case 0x10de0002:
2970 	case 0x10de0003:
2971 	case 0x10de0005:
2972 	case 0x10de0006:
2973 		chmap->channel_mask = (1U << 2) | (1U << 8);
2974 		break;
2975 	case 0x10de0007:
2976 		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
2977 	}
2978 	return 0;
2979 }
2980 
2981 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
2982 {
2983 	struct hdmi_spec *spec;
2984 	int err = patch_nvhdmi_2ch(codec);
2985 	if (err < 0)
2986 		return err;
2987 	spec = codec->spec;
2988 	spec->multiout.max_channels = 8;
2989 	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
2990 	codec->patch_ops.init = nvhdmi_7x_init_8ch;
2991 	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
2992 	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
2993 
2994 	/* Initialize the audio infoframe channel mask and checksum to something
2995 	 * valid */
2996 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2997 
2998 	return 0;
2999 }
3000 
3001 /*
3002  * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on:
3003  * - 0x10de0015
3004  * - 0x10de0040
3005  */
3006 static int nvhdmi_chmap_cea_alloc_validate_get_type(struct hdac_chmap *chmap,
3007 		struct hdac_cea_channel_speaker_allocation *cap, int channels)
3008 {
3009 	if (cap->ca_index == 0x00 && channels == 2)
3010 		return SNDRV_CTL_TLVT_CHMAP_FIXED;
3011 
3012 	/* If the speaker allocation matches the channel count, it is OK. */
3013 	if (cap->channels != channels)
3014 		return -1;
3015 
3016 	/* all channels are remappable freely */
3017 	return SNDRV_CTL_TLVT_CHMAP_VAR;
3018 }
3019 
3020 static int nvhdmi_chmap_validate(struct hdac_chmap *chmap,
3021 		int ca, int chs, unsigned char *map)
3022 {
3023 	if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR))
3024 		return -EINVAL;
3025 
3026 	return 0;
3027 }
3028 
3029 static int patch_nvhdmi(struct hda_codec *codec)
3030 {
3031 	struct hdmi_spec *spec;
3032 	int err;
3033 
3034 	err = patch_generic_hdmi(codec);
3035 	if (err)
3036 		return err;
3037 
3038 	spec = codec->spec;
3039 	spec->dyn_pin_out = true;
3040 
3041 	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
3042 		nvhdmi_chmap_cea_alloc_validate_get_type;
3043 	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
3044 
3045 	return 0;
3046 }
3047 
3048 /*
3049  * The HDA codec on NVIDIA Tegra contains two scratch registers that are
3050  * accessed using vendor-defined verbs. These registers can be used for
3051  * interoperability between the HDA and HDMI drivers.
3052  */
3053 
3054 /* Audio Function Group node */
3055 #define NVIDIA_AFG_NID 0x01
3056 
3057 /*
3058  * The SCRATCH0 register is used to notify the HDMI codec of changes in audio
3059  * format. On Tegra, bit 31 is used as a trigger that causes an interrupt to
3060  * be raised in the HDMI codec. The remainder of the bits is arbitrary. This
3061  * implementation stores the HDA format (see AC_FMT_*) in bits [15:0] and an
3062  * additional bit (at position 30) to signal the validity of the format.
3063  *
3064  * | 31      | 30    | 29  16 | 15   0 |
3065  * +---------+-------+--------+--------+
3066  * | TRIGGER | VALID | UNUSED | FORMAT |
3067  * +-----------------------------------|
3068  *
3069  * Note that for the trigger bit to take effect it needs to change value
3070  * (i.e. it needs to be toggled).
3071  */
3072 #define NVIDIA_GET_SCRATCH0		0xfa6
3073 #define NVIDIA_SET_SCRATCH0_BYTE0	0xfa7
3074 #define NVIDIA_SET_SCRATCH0_BYTE1	0xfa8
3075 #define NVIDIA_SET_SCRATCH0_BYTE2	0xfa9
3076 #define NVIDIA_SET_SCRATCH0_BYTE3	0xfaa
3077 #define NVIDIA_SCRATCH_TRIGGER (1 << 7)
3078 #define NVIDIA_SCRATCH_VALID   (1 << 6)
3079 
3080 #define NVIDIA_GET_SCRATCH1		0xfab
3081 #define NVIDIA_SET_SCRATCH1_BYTE0	0xfac
3082 #define NVIDIA_SET_SCRATCH1_BYTE1	0xfad
3083 #define NVIDIA_SET_SCRATCH1_BYTE2	0xfae
3084 #define NVIDIA_SET_SCRATCH1_BYTE3	0xfaf
3085 
3086 /*
3087  * The format parameter is the HDA audio format (see AC_FMT_*). If set to 0,
3088  * the format is invalidated so that the HDMI codec can be disabled.
3089  */
3090 static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
3091 {
3092 	unsigned int value;
3093 
3094 	/* bits [31:30] contain the trigger and valid bits */
3095 	value = snd_hda_codec_read(codec, NVIDIA_AFG_NID, 0,
3096 				   NVIDIA_GET_SCRATCH0, 0);
3097 	value = (value >> 24) & 0xff;
3098 
3099 	/* bits [15:0] are used to store the HDA format */
3100 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3101 			    NVIDIA_SET_SCRATCH0_BYTE0,
3102 			    (format >> 0) & 0xff);
3103 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3104 			    NVIDIA_SET_SCRATCH0_BYTE1,
3105 			    (format >> 8) & 0xff);
3106 
3107 	/* bits [16:24] are unused */
3108 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3109 			    NVIDIA_SET_SCRATCH0_BYTE2, 0);
3110 
3111 	/*
3112 	 * Bit 30 signals that the data is valid and hence that HDMI audio can
3113 	 * be enabled.
3114 	 */
3115 	if (format == 0)
3116 		value &= ~NVIDIA_SCRATCH_VALID;
3117 	else
3118 		value |= NVIDIA_SCRATCH_VALID;
3119 
3120 	/*
3121 	 * Whenever the trigger bit is toggled, an interrupt is raised in the
3122 	 * HDMI codec. The HDMI driver will use that as trigger to update its
3123 	 * configuration.
3124 	 */
3125 	value ^= NVIDIA_SCRATCH_TRIGGER;
3126 
3127 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3128 			    NVIDIA_SET_SCRATCH0_BYTE3, value);
3129 }
3130 
3131 static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
3132 				  struct hda_codec *codec,
3133 				  unsigned int stream_tag,
3134 				  unsigned int format,
3135 				  struct snd_pcm_substream *substream)
3136 {
3137 	int err;
3138 
3139 	err = generic_hdmi_playback_pcm_prepare(hinfo, codec, stream_tag,
3140 						format, substream);
3141 	if (err < 0)
3142 		return err;
3143 
3144 	/* notify the HDMI codec of the format change */
3145 	tegra_hdmi_set_format(codec, format);
3146 
3147 	return 0;
3148 }
3149 
3150 static int tegra_hdmi_pcm_cleanup(struct hda_pcm_stream *hinfo,
3151 				  struct hda_codec *codec,
3152 				  struct snd_pcm_substream *substream)
3153 {
3154 	/* invalidate the format in the HDMI codec */
3155 	tegra_hdmi_set_format(codec, 0);
3156 
3157 	return generic_hdmi_playback_pcm_cleanup(hinfo, codec, substream);
3158 }
3159 
3160 static struct hda_pcm *hda_find_pcm_by_type(struct hda_codec *codec, int type)
3161 {
3162 	struct hdmi_spec *spec = codec->spec;
3163 	unsigned int i;
3164 
3165 	for (i = 0; i < spec->num_pins; i++) {
3166 		struct hda_pcm *pcm = get_pcm_rec(spec, i);
3167 
3168 		if (pcm->pcm_type == type)
3169 			return pcm;
3170 	}
3171 
3172 	return NULL;
3173 }
3174 
3175 static int tegra_hdmi_build_pcms(struct hda_codec *codec)
3176 {
3177 	struct hda_pcm_stream *stream;
3178 	struct hda_pcm *pcm;
3179 	int err;
3180 
3181 	err = generic_hdmi_build_pcms(codec);
3182 	if (err < 0)
3183 		return err;
3184 
3185 	pcm = hda_find_pcm_by_type(codec, HDA_PCM_TYPE_HDMI);
3186 	if (!pcm)
3187 		return -ENODEV;
3188 
3189 	/*
3190 	 * Override ->prepare() and ->cleanup() operations to notify the HDMI
3191 	 * codec about format changes.
3192 	 */
3193 	stream = &pcm->stream[SNDRV_PCM_STREAM_PLAYBACK];
3194 	stream->ops.prepare = tegra_hdmi_pcm_prepare;
3195 	stream->ops.cleanup = tegra_hdmi_pcm_cleanup;
3196 
3197 	return 0;
3198 }
3199 
3200 static int patch_tegra_hdmi(struct hda_codec *codec)
3201 {
3202 	int err;
3203 
3204 	err = patch_generic_hdmi(codec);
3205 	if (err)
3206 		return err;
3207 
3208 	codec->patch_ops.build_pcms = tegra_hdmi_build_pcms;
3209 
3210 	return 0;
3211 }
3212 
3213 /*
3214  * ATI/AMD-specific implementations
3215  */
3216 
3217 #define is_amdhdmi_rev3_or_later(codec) \
3218 	((codec)->core.vendor_id == 0x1002aa01 && \
3219 	 ((codec)->core.revision_id & 0xff00) >= 0x0300)
3220 #define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)
3221 
3222 /* ATI/AMD specific HDA pin verbs, see the AMD HDA Verbs specification */
3223 #define ATI_VERB_SET_CHANNEL_ALLOCATION	0x771
3224 #define ATI_VERB_SET_DOWNMIX_INFO	0x772
3225 #define ATI_VERB_SET_MULTICHANNEL_01	0x777
3226 #define ATI_VERB_SET_MULTICHANNEL_23	0x778
3227 #define ATI_VERB_SET_MULTICHANNEL_45	0x779
3228 #define ATI_VERB_SET_MULTICHANNEL_67	0x77a
3229 #define ATI_VERB_SET_HBR_CONTROL	0x77c
3230 #define ATI_VERB_SET_MULTICHANNEL_1	0x785
3231 #define ATI_VERB_SET_MULTICHANNEL_3	0x786
3232 #define ATI_VERB_SET_MULTICHANNEL_5	0x787
3233 #define ATI_VERB_SET_MULTICHANNEL_7	0x788
3234 #define ATI_VERB_SET_MULTICHANNEL_MODE	0x789
3235 #define ATI_VERB_GET_CHANNEL_ALLOCATION	0xf71
3236 #define ATI_VERB_GET_DOWNMIX_INFO	0xf72
3237 #define ATI_VERB_GET_MULTICHANNEL_01	0xf77
3238 #define ATI_VERB_GET_MULTICHANNEL_23	0xf78
3239 #define ATI_VERB_GET_MULTICHANNEL_45	0xf79
3240 #define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
3241 #define ATI_VERB_GET_HBR_CONTROL	0xf7c
3242 #define ATI_VERB_GET_MULTICHANNEL_1	0xf85
3243 #define ATI_VERB_GET_MULTICHANNEL_3	0xf86
3244 #define ATI_VERB_GET_MULTICHANNEL_5	0xf87
3245 #define ATI_VERB_GET_MULTICHANNEL_7	0xf88
3246 #define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
3247 
3248 /* AMD specific HDA cvt verbs */
3249 #define ATI_VERB_SET_RAMP_RATE		0x770
3250 #define ATI_VERB_GET_RAMP_RATE		0xf70
3251 
3252 #define ATI_OUT_ENABLE 0x1
3253 
3254 #define ATI_MULTICHANNEL_MODE_PAIRED	0
3255 #define ATI_MULTICHANNEL_MODE_SINGLE	1
3256 
3257 #define ATI_HBR_CAPABLE 0x01
3258 #define ATI_HBR_ENABLE 0x10
3259 
3260 static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
3261 			   unsigned char *buf, int *eld_size)
3262 {
3263 	/* call hda_eld.c ATI/AMD-specific function */
3264 	return snd_hdmi_get_eld_ati(codec, nid, buf, eld_size,
3265 				    is_amdhdmi_rev3_or_later(codec));
3266 }
3267 
3268 static void atihdmi_pin_setup_infoframe(struct hda_codec *codec, hda_nid_t pin_nid, int ca,
3269 					int active_channels, int conn_type)
3270 {
3271 	snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);
3272 }
3273 
3274 static int atihdmi_paired_swap_fc_lfe(int pos)
3275 {
3276 	/*
3277 	 * ATI/AMD have automatic FC/LFE swap built-in
3278 	 * when in pairwise mapping mode.
3279 	 */
3280 
3281 	switch (pos) {
3282 		/* see channel_allocations[].speakers[] */
3283 		case 2: return 3;
3284 		case 3: return 2;
3285 		default: break;
3286 	}
3287 
3288 	return pos;
3289 }
3290 
3291 static int atihdmi_paired_chmap_validate(struct hdac_chmap *chmap,
3292 			int ca, int chs, unsigned char *map)
3293 {
3294 	struct hdac_cea_channel_speaker_allocation *cap;
3295 	int i, j;
3296 
3297 	/* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */
3298 
3299 	cap = snd_hdac_get_ch_alloc_from_ca(ca);
3300 	for (i = 0; i < chs; ++i) {
3301 		int mask = snd_hdac_chmap_to_spk_mask(map[i]);
3302 		bool ok = false;
3303 		bool companion_ok = false;
3304 
3305 		if (!mask)
3306 			continue;
3307 
3308 		for (j = 0 + i % 2; j < 8; j += 2) {
3309 			int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);
3310 			if (cap->speakers[chan_idx] == mask) {
3311 				/* channel is in a supported position */
3312 				ok = true;
3313 
3314 				if (i % 2 == 0 && i + 1 < chs) {
3315 					/* even channel, check the odd companion */
3316 					int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);
3317 					int comp_mask_req = snd_hdac_chmap_to_spk_mask(map[i+1]);
3318 					int comp_mask_act = cap->speakers[comp_chan_idx];
3319 
3320 					if (comp_mask_req == comp_mask_act)
3321 						companion_ok = true;
3322 					else
3323 						return -EINVAL;
3324 				}
3325 				break;
3326 			}
3327 		}
3328 
3329 		if (!ok)
3330 			return -EINVAL;
3331 
3332 		if (companion_ok)
3333 			i++; /* companion channel already checked */
3334 	}
3335 
3336 	return 0;
3337 }
3338 
3339 static int atihdmi_pin_set_slot_channel(struct hdac_device *hdac,
3340 		hda_nid_t pin_nid, int hdmi_slot, int stream_channel)
3341 {
3342 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
3343 	int verb;
3344 	int ati_channel_setup = 0;
3345 
3346 	if (hdmi_slot > 7)
3347 		return -EINVAL;
3348 
3349 	if (!has_amd_full_remap_support(codec)) {
3350 		hdmi_slot = atihdmi_paired_swap_fc_lfe(hdmi_slot);
3351 
3352 		/* In case this is an odd slot but without stream channel, do not
3353 		 * disable the slot since the corresponding even slot could have a
3354 		 * channel. In case neither have a channel, the slot pair will be
3355 		 * disabled when this function is called for the even slot. */
3356 		if (hdmi_slot % 2 != 0 && stream_channel == 0xf)
3357 			return 0;
3358 
3359 		hdmi_slot -= hdmi_slot % 2;
3360 
3361 		if (stream_channel != 0xf)
3362 			stream_channel -= stream_channel % 2;
3363 	}
3364 
3365 	verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;
3366 
3367 	/* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */
3368 
3369 	if (stream_channel != 0xf)
3370 		ati_channel_setup = (stream_channel << 4) | ATI_OUT_ENABLE;
3371 
3372 	return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);
3373 }
3374 
3375 static int atihdmi_pin_get_slot_channel(struct hdac_device *hdac,
3376 				hda_nid_t pin_nid, int asp_slot)
3377 {
3378 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
3379 	bool was_odd = false;
3380 	int ati_asp_slot = asp_slot;
3381 	int verb;
3382 	int ati_channel_setup;
3383 
3384 	if (asp_slot > 7)
3385 		return -EINVAL;
3386 
3387 	if (!has_amd_full_remap_support(codec)) {
3388 		ati_asp_slot = atihdmi_paired_swap_fc_lfe(asp_slot);
3389 		if (ati_asp_slot % 2 != 0) {
3390 			ati_asp_slot -= 1;
3391 			was_odd = true;
3392 		}
3393 	}
3394 
3395 	verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;
3396 
3397 	ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);
3398 
3399 	if (!(ati_channel_setup & ATI_OUT_ENABLE))
3400 		return 0xf;
3401 
3402 	return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;
3403 }
3404 
3405 static int atihdmi_paired_chmap_cea_alloc_validate_get_type(
3406 		struct hdac_chmap *chmap,
3407 		struct hdac_cea_channel_speaker_allocation *cap,
3408 		int channels)
3409 {
3410 	int c;
3411 
3412 	/*
3413 	 * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so
3414 	 * we need to take that into account (a single channel may take 2
3415 	 * channel slots if we need to carry a silent channel next to it).
3416 	 * On Rev3+ AMD codecs this function is not used.
3417 	 */
3418 	int chanpairs = 0;
3419 
3420 	/* We only produce even-numbered channel count TLVs */
3421 	if ((channels % 2) != 0)
3422 		return -1;
3423 
3424 	for (c = 0; c < 7; c += 2) {
3425 		if (cap->speakers[c] || cap->speakers[c+1])
3426 			chanpairs++;
3427 	}
3428 
3429 	if (chanpairs * 2 != channels)
3430 		return -1;
3431 
3432 	return SNDRV_CTL_TLVT_CHMAP_PAIRED;
3433 }
3434 
3435 static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct hdac_chmap *hchmap,
3436 		struct hdac_cea_channel_speaker_allocation *cap,
3437 		unsigned int *chmap, int channels)
3438 {
3439 	/* produce paired maps for pre-rev3 ATI/AMD codecs */
3440 	int count = 0;
3441 	int c;
3442 
3443 	for (c = 7; c >= 0; c--) {
3444 		int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);
3445 		int spk = cap->speakers[chan];
3446 		if (!spk) {
3447 			/* add N/A channel if the companion channel is occupied */
3448 			if (cap->speakers[chan + (chan % 2 ? -1 : 1)])
3449 				chmap[count++] = SNDRV_CHMAP_NA;
3450 
3451 			continue;
3452 		}
3453 
3454 		chmap[count++] = snd_hdac_spk_to_chmap(spk);
3455 	}
3456 
3457 	WARN_ON(count != channels);
3458 }
3459 
3460 static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
3461 				 bool hbr)
3462 {
3463 	int hbr_ctl, hbr_ctl_new;
3464 
3465 	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
3466 	if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {
3467 		if (hbr)
3468 			hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
3469 		else
3470 			hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
3471 
3472 		codec_dbg(codec,
3473 			  "atihdmi_pin_hbr_setup: NID=0x%x, %shbr-ctl=0x%x\n",
3474 				pin_nid,
3475 				hbr_ctl == hbr_ctl_new ? "" : "new-",
3476 				hbr_ctl_new);
3477 
3478 		if (hbr_ctl != hbr_ctl_new)
3479 			snd_hda_codec_write(codec, pin_nid, 0,
3480 						ATI_VERB_SET_HBR_CONTROL,
3481 						hbr_ctl_new);
3482 
3483 	} else if (hbr)
3484 		return -EINVAL;
3485 
3486 	return 0;
3487 }
3488 
3489 static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
3490 				hda_nid_t pin_nid, u32 stream_tag, int format)
3491 {
3492 
3493 	if (is_amdhdmi_rev3_or_later(codec)) {
3494 		int ramp_rate = 180; /* default as per AMD spec */
3495 		/* disable ramp-up/down for non-pcm as per AMD spec */
3496 		if (format & AC_FMT_TYPE_NON_PCM)
3497 			ramp_rate = 0;
3498 
3499 		snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);
3500 	}
3501 
3502 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
3503 }
3504 
3505 
3506 static int atihdmi_init(struct hda_codec *codec)
3507 {
3508 	struct hdmi_spec *spec = codec->spec;
3509 	int pin_idx, err;
3510 
3511 	err = generic_hdmi_init(codec);
3512 
3513 	if (err)
3514 		return err;
3515 
3516 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
3517 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
3518 
3519 		/* make sure downmix information in infoframe is zero */
3520 		snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);
3521 
3522 		/* enable channel-wise remap mode if supported */
3523 		if (has_amd_full_remap_support(codec))
3524 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
3525 					    ATI_VERB_SET_MULTICHANNEL_MODE,
3526 					    ATI_MULTICHANNEL_MODE_SINGLE);
3527 	}
3528 
3529 	return 0;
3530 }
3531 
3532 static int patch_atihdmi(struct hda_codec *codec)
3533 {
3534 	struct hdmi_spec *spec;
3535 	struct hdmi_spec_per_cvt *per_cvt;
3536 	int err, cvt_idx;
3537 
3538 	err = patch_generic_hdmi(codec);
3539 
3540 	if (err)
3541 		return err;
3542 
3543 	codec->patch_ops.init = atihdmi_init;
3544 
3545 	spec = codec->spec;
3546 
3547 	spec->ops.pin_get_eld = atihdmi_pin_get_eld;
3548 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
3549 	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
3550 	spec->ops.setup_stream = atihdmi_setup_stream;
3551 
3552 	spec->chmap.ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
3553 	spec->chmap.ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
3554 
3555 	if (!has_amd_full_remap_support(codec)) {
3556 		/* override to ATI/AMD-specific versions with pairwise mapping */
3557 		spec->chmap.ops.chmap_cea_alloc_validate_get_type =
3558 			atihdmi_paired_chmap_cea_alloc_validate_get_type;
3559 		spec->chmap.ops.cea_alloc_to_tlv_chmap =
3560 				atihdmi_paired_cea_alloc_to_tlv_chmap;
3561 		spec->chmap.ops.chmap_validate = atihdmi_paired_chmap_validate;
3562 	}
3563 
3564 	/* ATI/AMD converters do not advertise all of their capabilities */
3565 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
3566 		per_cvt = get_cvt(spec, cvt_idx);
3567 		per_cvt->channels_max = max(per_cvt->channels_max, 8u);
3568 		per_cvt->rates |= SUPPORTED_RATES;
3569 		per_cvt->formats |= SUPPORTED_FORMATS;
3570 		per_cvt->maxbps = max(per_cvt->maxbps, 24u);
3571 	}
3572 
3573 	spec->chmap.channels_max = max(spec->chmap.channels_max, 8u);
3574 
3575 	return 0;
3576 }
3577 
3578 /* VIA HDMI Implementation */
3579 #define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
3580 #define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
3581 
3582 static int patch_via_hdmi(struct hda_codec *codec)
3583 {
3584 	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
3585 }
3586 
3587 /*
3588  * patch entries
3589  */
3590 static const struct hda_device_id snd_hda_id_hdmi[] = {
3591 HDA_CODEC_ENTRY(0x1002793c, "RS600 HDMI",	patch_atihdmi),
3592 HDA_CODEC_ENTRY(0x10027919, "RS600 HDMI",	patch_atihdmi),
3593 HDA_CODEC_ENTRY(0x1002791a, "RS690/780 HDMI",	patch_atihdmi),
3594 HDA_CODEC_ENTRY(0x1002aa01, "R6xx HDMI",	patch_atihdmi),
3595 HDA_CODEC_ENTRY(0x10951390, "SiI1390 HDMI",	patch_generic_hdmi),
3596 HDA_CODEC_ENTRY(0x10951392, "SiI1392 HDMI",	patch_generic_hdmi),
3597 HDA_CODEC_ENTRY(0x17e80047, "Chrontel HDMI",	patch_generic_hdmi),
3598 HDA_CODEC_ENTRY(0x10de0002, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3599 HDA_CODEC_ENTRY(0x10de0003, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3600 HDA_CODEC_ENTRY(0x10de0005, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3601 HDA_CODEC_ENTRY(0x10de0006, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3602 HDA_CODEC_ENTRY(0x10de0007, "MCP79/7A HDMI",	patch_nvhdmi_8ch_7x),
3603 HDA_CODEC_ENTRY(0x10de000a, "GPU 0a HDMI/DP",	patch_nvhdmi),
3604 HDA_CODEC_ENTRY(0x10de000b, "GPU 0b HDMI/DP",	patch_nvhdmi),
3605 HDA_CODEC_ENTRY(0x10de000c, "MCP89 HDMI",	patch_nvhdmi),
3606 HDA_CODEC_ENTRY(0x10de000d, "GPU 0d HDMI/DP",	patch_nvhdmi),
3607 HDA_CODEC_ENTRY(0x10de0010, "GPU 10 HDMI/DP",	patch_nvhdmi),
3608 HDA_CODEC_ENTRY(0x10de0011, "GPU 11 HDMI/DP",	patch_nvhdmi),
3609 HDA_CODEC_ENTRY(0x10de0012, "GPU 12 HDMI/DP",	patch_nvhdmi),
3610 HDA_CODEC_ENTRY(0x10de0013, "GPU 13 HDMI/DP",	patch_nvhdmi),
3611 HDA_CODEC_ENTRY(0x10de0014, "GPU 14 HDMI/DP",	patch_nvhdmi),
3612 HDA_CODEC_ENTRY(0x10de0015, "GPU 15 HDMI/DP",	patch_nvhdmi),
3613 HDA_CODEC_ENTRY(0x10de0016, "GPU 16 HDMI/DP",	patch_nvhdmi),
3614 /* 17 is known to be absent */
3615 HDA_CODEC_ENTRY(0x10de0018, "GPU 18 HDMI/DP",	patch_nvhdmi),
3616 HDA_CODEC_ENTRY(0x10de0019, "GPU 19 HDMI/DP",	patch_nvhdmi),
3617 HDA_CODEC_ENTRY(0x10de001a, "GPU 1a HDMI/DP",	patch_nvhdmi),
3618 HDA_CODEC_ENTRY(0x10de001b, "GPU 1b HDMI/DP",	patch_nvhdmi),
3619 HDA_CODEC_ENTRY(0x10de001c, "GPU 1c HDMI/DP",	patch_nvhdmi),
3620 HDA_CODEC_ENTRY(0x10de0020, "Tegra30 HDMI",	patch_tegra_hdmi),
3621 HDA_CODEC_ENTRY(0x10de0022, "Tegra114 HDMI",	patch_tegra_hdmi),
3622 HDA_CODEC_ENTRY(0x10de0028, "Tegra124 HDMI",	patch_tegra_hdmi),
3623 HDA_CODEC_ENTRY(0x10de0029, "Tegra210 HDMI/DP",	patch_tegra_hdmi),
3624 HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",	patch_nvhdmi),
3625 HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),
3626 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
3627 HDA_CODEC_ENTRY(0x10de0043, "GPU 43 HDMI/DP",	patch_nvhdmi),
3628 HDA_CODEC_ENTRY(0x10de0044, "GPU 44 HDMI/DP",	patch_nvhdmi),
3629 HDA_CODEC_ENTRY(0x10de0051, "GPU 51 HDMI/DP",	patch_nvhdmi),
3630 HDA_CODEC_ENTRY(0x10de0060, "GPU 60 HDMI/DP",	patch_nvhdmi),
3631 HDA_CODEC_ENTRY(0x10de0067, "MCP67 HDMI",	patch_nvhdmi_2ch),
3632 HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP",	patch_nvhdmi),
3633 HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP",	patch_nvhdmi),
3634 HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP",	patch_nvhdmi),
3635 HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP",	patch_nvhdmi),
3636 HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP",	patch_nvhdmi),
3637 HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP",	patch_nvhdmi),
3638 HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",	patch_nvhdmi_2ch),
3639 HDA_CODEC_ENTRY(0x11069f80, "VX900 HDMI/DP",	patch_via_hdmi),
3640 HDA_CODEC_ENTRY(0x11069f81, "VX900 HDMI/DP",	patch_via_hdmi),
3641 HDA_CODEC_ENTRY(0x11069f84, "VX11 HDMI/DP",	patch_generic_hdmi),
3642 HDA_CODEC_ENTRY(0x11069f85, "VX11 HDMI/DP",	patch_generic_hdmi),
3643 HDA_CODEC_ENTRY(0x80860054, "IbexPeak HDMI",	patch_i915_cpt_hdmi),
3644 HDA_CODEC_ENTRY(0x80862801, "Bearlake HDMI",	patch_generic_hdmi),
3645 HDA_CODEC_ENTRY(0x80862802, "Cantiga HDMI",	patch_generic_hdmi),
3646 HDA_CODEC_ENTRY(0x80862803, "Eaglelake HDMI",	patch_generic_hdmi),
3647 HDA_CODEC_ENTRY(0x80862804, "IbexPeak HDMI",	patch_i915_cpt_hdmi),
3648 HDA_CODEC_ENTRY(0x80862805, "CougarPoint HDMI",	patch_i915_cpt_hdmi),
3649 HDA_CODEC_ENTRY(0x80862806, "PantherPoint HDMI", patch_i915_cpt_hdmi),
3650 HDA_CODEC_ENTRY(0x80862807, "Haswell HDMI",	patch_i915_hsw_hdmi),
3651 HDA_CODEC_ENTRY(0x80862808, "Broadwell HDMI",	patch_i915_hsw_hdmi),
3652 HDA_CODEC_ENTRY(0x80862809, "Skylake HDMI",	patch_i915_hsw_hdmi),
3653 HDA_CODEC_ENTRY(0x8086280a, "Broxton HDMI",	patch_i915_hsw_hdmi),
3654 HDA_CODEC_ENTRY(0x8086280b, "Kabylake HDMI",	patch_i915_hsw_hdmi),
3655 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
3656 HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI",	patch_i915_byt_hdmi),
3657 HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",	patch_i915_byt_hdmi),
3658 HDA_CODEC_ENTRY(0x808629fb, "Crestline HDMI",	patch_generic_hdmi),
3659 /* special ID for generic HDMI */
3660 HDA_CODEC_ENTRY(HDA_CODEC_ID_GENERIC_HDMI, "Generic HDMI", patch_generic_hdmi),
3661 {} /* terminator */
3662 };
3663 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_hdmi);
3664 
3665 MODULE_LICENSE("GPL");
3666 MODULE_DESCRIPTION("HDMI HD-audio codec");
3667 MODULE_ALIAS("snd-hda-codec-intelhdmi");
3668 MODULE_ALIAS("snd-hda-codec-nvhdmi");
3669 MODULE_ALIAS("snd-hda-codec-atihdmi");
3670 
3671 static struct hda_codec_driver hdmi_driver = {
3672 	.id = snd_hda_id_hdmi,
3673 };
3674 
3675 module_hda_codec_driver(hdmi_driver);
3676