xref: /openbmc/linux/sound/pci/hda/patch_hdmi.c (revision f3a8b664)
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, -1,
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 	/* Add sanity check to pass klockwork check.
1684 	 * This should never happen.
1685 	 */
1686 	if (WARN_ON(spdif == NULL))
1687 		return true;
1688 	non_pcm = !!(spdif->status & IEC958_AES0_NONAUDIO);
1689 	mutex_unlock(&codec->spdif_mutex);
1690 	return non_pcm;
1691 }
1692 
1693 /*
1694  * HDMI callbacks
1695  */
1696 
1697 static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
1698 					   struct hda_codec *codec,
1699 					   unsigned int stream_tag,
1700 					   unsigned int format,
1701 					   struct snd_pcm_substream *substream)
1702 {
1703 	hda_nid_t cvt_nid = hinfo->nid;
1704 	struct hdmi_spec *spec = codec->spec;
1705 	int pin_idx;
1706 	struct hdmi_spec_per_pin *per_pin;
1707 	hda_nid_t pin_nid;
1708 	struct snd_pcm_runtime *runtime = substream->runtime;
1709 	bool non_pcm;
1710 	int pinctl;
1711 	int err;
1712 
1713 	mutex_lock(&spec->pcm_lock);
1714 	pin_idx = hinfo_to_pin_index(codec, hinfo);
1715 	if (spec->dyn_pcm_assign && pin_idx < 0) {
1716 		/* when dyn_pcm_assign and pcm is not bound to a pin
1717 		 * skip pin setup and return 0 to make audio playback
1718 		 * be ongoing
1719 		 */
1720 		pin_cvt_fixup(codec, NULL, cvt_nid);
1721 		snd_hda_codec_setup_stream(codec, cvt_nid,
1722 					stream_tag, 0, format);
1723 		mutex_unlock(&spec->pcm_lock);
1724 		return 0;
1725 	}
1726 
1727 	if (snd_BUG_ON(pin_idx < 0)) {
1728 		mutex_unlock(&spec->pcm_lock);
1729 		return -EINVAL;
1730 	}
1731 	per_pin = get_pin(spec, pin_idx);
1732 	pin_nid = per_pin->pin_nid;
1733 
1734 	/* Verify pin:cvt selections to avoid silent audio after S3.
1735 	 * After S3, the audio driver restores pin:cvt selections
1736 	 * but this can happen before gfx is ready and such selection
1737 	 * is overlooked by HW. Thus multiple pins can share a same
1738 	 * default convertor and mute control will affect each other,
1739 	 * which can cause a resumed audio playback become silent
1740 	 * after S3.
1741 	 */
1742 	pin_cvt_fixup(codec, per_pin, 0);
1743 
1744 	/* Call sync_audio_rate to set the N/CTS/M manually if necessary */
1745 	/* Todo: add DP1.2 MST audio support later */
1746 	if (codec_has_acomp(codec))
1747 		snd_hdac_sync_audio_rate(&codec->core, pin_nid, -1,
1748 					 runtime->rate);
1749 
1750 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
1751 	mutex_lock(&per_pin->lock);
1752 	per_pin->channels = substream->runtime->channels;
1753 	per_pin->setup = true;
1754 
1755 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
1756 	mutex_unlock(&per_pin->lock);
1757 	if (spec->dyn_pin_out) {
1758 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
1759 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1760 		snd_hda_codec_write(codec, pin_nid, 0,
1761 				    AC_VERB_SET_PIN_WIDGET_CONTROL,
1762 				    pinctl | PIN_OUT);
1763 	}
1764 
1765 	err = spec->ops.setup_stream(codec, cvt_nid, pin_nid,
1766 				 stream_tag, format);
1767 	mutex_unlock(&spec->pcm_lock);
1768 	return err;
1769 }
1770 
1771 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
1772 					     struct hda_codec *codec,
1773 					     struct snd_pcm_substream *substream)
1774 {
1775 	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
1776 	return 0;
1777 }
1778 
1779 static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
1780 			  struct hda_codec *codec,
1781 			  struct snd_pcm_substream *substream)
1782 {
1783 	struct hdmi_spec *spec = codec->spec;
1784 	int cvt_idx, pin_idx, pcm_idx;
1785 	struct hdmi_spec_per_cvt *per_cvt;
1786 	struct hdmi_spec_per_pin *per_pin;
1787 	int pinctl;
1788 
1789 	if (hinfo->nid) {
1790 		pcm_idx = hinfo_to_pcm_index(codec, hinfo);
1791 		if (snd_BUG_ON(pcm_idx < 0))
1792 			return -EINVAL;
1793 		cvt_idx = cvt_nid_to_cvt_index(codec, hinfo->nid);
1794 		if (snd_BUG_ON(cvt_idx < 0))
1795 			return -EINVAL;
1796 		per_cvt = get_cvt(spec, cvt_idx);
1797 
1798 		snd_BUG_ON(!per_cvt->assigned);
1799 		per_cvt->assigned = 0;
1800 		hinfo->nid = 0;
1801 
1802 		mutex_lock(&spec->pcm_lock);
1803 		snd_hda_spdif_ctls_unassign(codec, pcm_idx);
1804 		clear_bit(pcm_idx, &spec->pcm_in_use);
1805 		pin_idx = hinfo_to_pin_index(codec, hinfo);
1806 		if (spec->dyn_pcm_assign && pin_idx < 0) {
1807 			mutex_unlock(&spec->pcm_lock);
1808 			return 0;
1809 		}
1810 
1811 		if (snd_BUG_ON(pin_idx < 0)) {
1812 			mutex_unlock(&spec->pcm_lock);
1813 			return -EINVAL;
1814 		}
1815 		per_pin = get_pin(spec, pin_idx);
1816 
1817 		if (spec->dyn_pin_out) {
1818 			pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
1819 					AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
1820 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
1821 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
1822 					    pinctl & ~PIN_OUT);
1823 		}
1824 
1825 		mutex_lock(&per_pin->lock);
1826 		per_pin->chmap_set = false;
1827 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
1828 
1829 		per_pin->setup = false;
1830 		per_pin->channels = 0;
1831 		mutex_unlock(&per_pin->lock);
1832 		mutex_unlock(&spec->pcm_lock);
1833 	}
1834 
1835 	return 0;
1836 }
1837 
1838 static const struct hda_pcm_ops generic_ops = {
1839 	.open = hdmi_pcm_open,
1840 	.close = hdmi_pcm_close,
1841 	.prepare = generic_hdmi_playback_pcm_prepare,
1842 	.cleanup = generic_hdmi_playback_pcm_cleanup,
1843 };
1844 
1845 static int hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx)
1846 {
1847 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
1848 	struct hdmi_spec *spec = codec->spec;
1849 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
1850 
1851 	if (!per_pin)
1852 		return 0;
1853 
1854 	return per_pin->sink_eld.info.spk_alloc;
1855 }
1856 
1857 static void hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
1858 					unsigned char *chmap)
1859 {
1860 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
1861 	struct hdmi_spec *spec = codec->spec;
1862 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
1863 
1864 	/* chmap is already set to 0 in caller */
1865 	if (!per_pin)
1866 		return;
1867 
1868 	memcpy(chmap, per_pin->chmap, ARRAY_SIZE(per_pin->chmap));
1869 }
1870 
1871 static void hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
1872 				unsigned char *chmap, int prepared)
1873 {
1874 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
1875 	struct hdmi_spec *spec = codec->spec;
1876 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
1877 
1878 	if (!per_pin)
1879 		return;
1880 	mutex_lock(&per_pin->lock);
1881 	per_pin->chmap_set = true;
1882 	memcpy(per_pin->chmap, chmap, ARRAY_SIZE(per_pin->chmap));
1883 	if (prepared)
1884 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
1885 	mutex_unlock(&per_pin->lock);
1886 }
1887 
1888 static bool is_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
1889 {
1890 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
1891 	struct hdmi_spec *spec = codec->spec;
1892 	struct hdmi_spec_per_pin *per_pin = pcm_idx_to_pin(spec, pcm_idx);
1893 
1894 	return per_pin ? true:false;
1895 }
1896 
1897 static int generic_hdmi_build_pcms(struct hda_codec *codec)
1898 {
1899 	struct hdmi_spec *spec = codec->spec;
1900 	int pin_idx;
1901 
1902 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
1903 		struct hda_pcm *info;
1904 		struct hda_pcm_stream *pstr;
1905 
1906 		info = snd_hda_codec_pcm_new(codec, "HDMI %d", pin_idx);
1907 		if (!info)
1908 			return -ENOMEM;
1909 
1910 		spec->pcm_rec[pin_idx].pcm = info;
1911 		spec->pcm_used++;
1912 		info->pcm_type = HDA_PCM_TYPE_HDMI;
1913 		info->own_chmap = true;
1914 
1915 		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
1916 		pstr->substreams = 1;
1917 		pstr->ops = generic_ops;
1918 		/* other pstr fields are set in open */
1919 	}
1920 
1921 	return 0;
1922 }
1923 
1924 static void free_hdmi_jack_priv(struct snd_jack *jack)
1925 {
1926 	struct hdmi_pcm *pcm = jack->private_data;
1927 
1928 	pcm->jack = NULL;
1929 }
1930 
1931 static int add_hdmi_jack_kctl(struct hda_codec *codec,
1932 			       struct hdmi_spec *spec,
1933 			       int pcm_idx,
1934 			       const char *name)
1935 {
1936 	struct snd_jack *jack;
1937 	int err;
1938 
1939 	err = snd_jack_new(codec->card, name, SND_JACK_AVOUT, &jack,
1940 			   true, false);
1941 	if (err < 0)
1942 		return err;
1943 
1944 	spec->pcm_rec[pcm_idx].jack = jack;
1945 	jack->private_data = &spec->pcm_rec[pcm_idx];
1946 	jack->private_free = free_hdmi_jack_priv;
1947 	return 0;
1948 }
1949 
1950 static int generic_hdmi_build_jack(struct hda_codec *codec, int pcm_idx)
1951 {
1952 	char hdmi_str[32] = "HDMI/DP";
1953 	struct hdmi_spec *spec = codec->spec;
1954 	struct hdmi_spec_per_pin *per_pin;
1955 	struct hda_jack_tbl *jack;
1956 	int pcmdev = get_pcm_rec(spec, pcm_idx)->device;
1957 	bool phantom_jack;
1958 	int ret;
1959 
1960 	if (pcmdev > 0)
1961 		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
1962 
1963 	if (spec->dyn_pcm_assign)
1964 		return add_hdmi_jack_kctl(codec, spec, pcm_idx, hdmi_str);
1965 
1966 	/* for !dyn_pcm_assign, we still use hda_jack for compatibility */
1967 	/* if !dyn_pcm_assign, it must be non-MST mode.
1968 	 * This means pcms and pins are statically mapped.
1969 	 * And pcm_idx is pin_idx.
1970 	 */
1971 	per_pin = get_pin(spec, pcm_idx);
1972 	phantom_jack = !is_jack_detectable(codec, per_pin->pin_nid);
1973 	if (phantom_jack)
1974 		strncat(hdmi_str, " Phantom",
1975 			sizeof(hdmi_str) - strlen(hdmi_str) - 1);
1976 	ret = snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str,
1977 				    phantom_jack);
1978 	if (ret < 0)
1979 		return ret;
1980 	jack = snd_hda_jack_tbl_get(codec, per_pin->pin_nid);
1981 	if (jack == NULL)
1982 		return 0;
1983 	/* assign jack->jack to pcm_rec[].jack to
1984 	 * align with dyn_pcm_assign mode
1985 	 */
1986 	spec->pcm_rec[pcm_idx].jack = jack->jack;
1987 	return 0;
1988 }
1989 
1990 static int generic_hdmi_build_controls(struct hda_codec *codec)
1991 {
1992 	struct hdmi_spec *spec = codec->spec;
1993 	int err;
1994 	int pin_idx, pcm_idx;
1995 
1996 
1997 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
1998 		err = generic_hdmi_build_jack(codec, pcm_idx);
1999 		if (err < 0)
2000 			return err;
2001 
2002 		/* create the spdif for each pcm
2003 		 * pin will be bound when monitor is connected
2004 		 */
2005 		if (spec->dyn_pcm_assign)
2006 			err = snd_hda_create_dig_out_ctls(codec,
2007 					  0, spec->cvt_nids[0],
2008 					  HDA_PCM_TYPE_HDMI);
2009 		else {
2010 			struct hdmi_spec_per_pin *per_pin =
2011 				get_pin(spec, pcm_idx);
2012 			err = snd_hda_create_dig_out_ctls(codec,
2013 						  per_pin->pin_nid,
2014 						  per_pin->mux_nids[0],
2015 						  HDA_PCM_TYPE_HDMI);
2016 		}
2017 		if (err < 0)
2018 			return err;
2019 		snd_hda_spdif_ctls_unassign(codec, pcm_idx);
2020 
2021 		/* add control for ELD Bytes */
2022 		err = hdmi_create_eld_ctl(codec, pcm_idx,
2023 					get_pcm_rec(spec, pcm_idx)->device);
2024 		if (err < 0)
2025 			return err;
2026 	}
2027 
2028 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2029 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2030 
2031 		hdmi_present_sense(per_pin, 0);
2032 	}
2033 
2034 	/* add channel maps */
2035 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2036 		struct hda_pcm *pcm;
2037 
2038 		pcm = get_pcm_rec(spec, pcm_idx);
2039 		if (!pcm || !pcm->pcm)
2040 			break;
2041 		err = snd_hdac_add_chmap_ctls(pcm->pcm, pcm_idx, &spec->chmap);
2042 		if (err < 0)
2043 			return err;
2044 	}
2045 
2046 	return 0;
2047 }
2048 
2049 static int generic_hdmi_init_per_pins(struct hda_codec *codec)
2050 {
2051 	struct hdmi_spec *spec = codec->spec;
2052 	int pin_idx;
2053 
2054 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2055 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2056 
2057 		per_pin->codec = codec;
2058 		mutex_init(&per_pin->lock);
2059 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
2060 		eld_proc_new(per_pin, pin_idx);
2061 	}
2062 	return 0;
2063 }
2064 
2065 static int generic_hdmi_init(struct hda_codec *codec)
2066 {
2067 	struct hdmi_spec *spec = codec->spec;
2068 	int pin_idx;
2069 
2070 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2071 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2072 		hda_nid_t pin_nid = per_pin->pin_nid;
2073 
2074 		hdmi_init_pin(codec, pin_nid);
2075 		if (!codec_has_acomp(codec))
2076 			snd_hda_jack_detect_enable_callback(codec, pin_nid,
2077 				codec->jackpoll_interval > 0 ?
2078 				jack_callback : NULL);
2079 	}
2080 	return 0;
2081 }
2082 
2083 static void hdmi_array_init(struct hdmi_spec *spec, int nums)
2084 {
2085 	snd_array_init(&spec->pins, sizeof(struct hdmi_spec_per_pin), nums);
2086 	snd_array_init(&spec->cvts, sizeof(struct hdmi_spec_per_cvt), nums);
2087 }
2088 
2089 static void hdmi_array_free(struct hdmi_spec *spec)
2090 {
2091 	snd_array_free(&spec->pins);
2092 	snd_array_free(&spec->cvts);
2093 }
2094 
2095 static void generic_spec_free(struct hda_codec *codec)
2096 {
2097 	struct hdmi_spec *spec = codec->spec;
2098 
2099 	if (spec) {
2100 		if (spec->i915_bound)
2101 			snd_hdac_i915_exit(&codec->bus->core);
2102 		hdmi_array_free(spec);
2103 		kfree(spec);
2104 		codec->spec = NULL;
2105 	}
2106 	codec->dp_mst = false;
2107 }
2108 
2109 static void generic_hdmi_free(struct hda_codec *codec)
2110 {
2111 	struct hdmi_spec *spec = codec->spec;
2112 	int pin_idx, pcm_idx;
2113 
2114 	if (codec_has_acomp(codec))
2115 		snd_hdac_i915_register_notifier(NULL);
2116 
2117 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2118 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2119 		cancel_delayed_work_sync(&per_pin->work);
2120 		eld_proc_free(per_pin);
2121 	}
2122 
2123 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
2124 		if (spec->pcm_rec[pcm_idx].jack == NULL)
2125 			continue;
2126 		if (spec->dyn_pcm_assign)
2127 			snd_device_free(codec->card,
2128 					spec->pcm_rec[pcm_idx].jack);
2129 		else
2130 			spec->pcm_rec[pcm_idx].jack = NULL;
2131 	}
2132 
2133 	generic_spec_free(codec);
2134 }
2135 
2136 #ifdef CONFIG_PM
2137 static int generic_hdmi_resume(struct hda_codec *codec)
2138 {
2139 	struct hdmi_spec *spec = codec->spec;
2140 	int pin_idx;
2141 
2142 	codec->patch_ops.init(codec);
2143 	regcache_sync(codec->core.regmap);
2144 
2145 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
2146 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
2147 		hdmi_present_sense(per_pin, 1);
2148 	}
2149 	return 0;
2150 }
2151 #endif
2152 
2153 static const struct hda_codec_ops generic_hdmi_patch_ops = {
2154 	.init			= generic_hdmi_init,
2155 	.free			= generic_hdmi_free,
2156 	.build_pcms		= generic_hdmi_build_pcms,
2157 	.build_controls		= generic_hdmi_build_controls,
2158 	.unsol_event		= hdmi_unsol_event,
2159 #ifdef CONFIG_PM
2160 	.resume			= generic_hdmi_resume,
2161 #endif
2162 };
2163 
2164 static const struct hdmi_ops generic_standard_hdmi_ops = {
2165 	.pin_get_eld				= snd_hdmi_get_eld,
2166 	.pin_setup_infoframe			= hdmi_pin_setup_infoframe,
2167 	.pin_hbr_setup				= hdmi_pin_hbr_setup,
2168 	.setup_stream				= hdmi_setup_stream,
2169 };
2170 
2171 /* allocate codec->spec and assign/initialize generic parser ops */
2172 static int alloc_generic_hdmi(struct hda_codec *codec)
2173 {
2174 	struct hdmi_spec *spec;
2175 
2176 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2177 	if (!spec)
2178 		return -ENOMEM;
2179 
2180 	spec->ops = generic_standard_hdmi_ops;
2181 	mutex_init(&spec->pcm_lock);
2182 	snd_hdac_register_chmap_ops(&codec->core, &spec->chmap);
2183 
2184 	spec->chmap.ops.get_chmap = hdmi_get_chmap;
2185 	spec->chmap.ops.set_chmap = hdmi_set_chmap;
2186 	spec->chmap.ops.is_pcm_attached = is_hdmi_pcm_attached;
2187 	spec->chmap.ops.get_spk_alloc = hdmi_get_spk_alloc,
2188 
2189 	codec->spec = spec;
2190 	hdmi_array_init(spec, 4);
2191 
2192 	codec->patch_ops = generic_hdmi_patch_ops;
2193 
2194 	return 0;
2195 }
2196 
2197 /* generic HDMI parser */
2198 static int patch_generic_hdmi(struct hda_codec *codec)
2199 {
2200 	int err;
2201 
2202 	err = alloc_generic_hdmi(codec);
2203 	if (err < 0)
2204 		return err;
2205 
2206 	err = hdmi_parse_codec(codec);
2207 	if (err < 0) {
2208 		generic_spec_free(codec);
2209 		return err;
2210 	}
2211 
2212 	generic_hdmi_init_per_pins(codec);
2213 	return 0;
2214 }
2215 
2216 /*
2217  * Intel codec parsers and helpers
2218  */
2219 
2220 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
2221 					     hda_nid_t nid)
2222 {
2223 	struct hdmi_spec *spec = codec->spec;
2224 	hda_nid_t conns[4];
2225 	int nconns;
2226 
2227 	nconns = snd_hda_get_connections(codec, nid, conns, ARRAY_SIZE(conns));
2228 	if (nconns == spec->num_cvts &&
2229 	    !memcmp(conns, spec->cvt_nids, spec->num_cvts * sizeof(hda_nid_t)))
2230 		return;
2231 
2232 	/* override pins connection list */
2233 	codec_dbg(codec, "hdmi: haswell: override pin connection 0x%x\n", nid);
2234 	snd_hda_override_conn_list(codec, nid, spec->num_cvts, spec->cvt_nids);
2235 }
2236 
2237 #define INTEL_VENDOR_NID 0x08
2238 #define INTEL_GET_VENDOR_VERB 0xf81
2239 #define INTEL_SET_VENDOR_VERB 0x781
2240 #define INTEL_EN_DP12			0x02 /* enable DP 1.2 features */
2241 #define INTEL_EN_ALL_PIN_CVTS	0x01 /* enable 2nd & 3rd pins and convertors */
2242 
2243 static void intel_haswell_enable_all_pins(struct hda_codec *codec,
2244 					  bool update_tree)
2245 {
2246 	unsigned int vendor_param;
2247 
2248 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2249 				INTEL_GET_VENDOR_VERB, 0);
2250 	if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
2251 		return;
2252 
2253 	vendor_param |= INTEL_EN_ALL_PIN_CVTS;
2254 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2255 				INTEL_SET_VENDOR_VERB, vendor_param);
2256 	if (vendor_param == -1)
2257 		return;
2258 
2259 	if (update_tree)
2260 		snd_hda_codec_update_widgets(codec);
2261 }
2262 
2263 static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec)
2264 {
2265 	unsigned int vendor_param;
2266 
2267 	vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0,
2268 				INTEL_GET_VENDOR_VERB, 0);
2269 	if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
2270 		return;
2271 
2272 	/* enable DP1.2 mode */
2273 	vendor_param |= INTEL_EN_DP12;
2274 	snd_hdac_regmap_add_vendor_verb(&codec->core, INTEL_SET_VENDOR_VERB);
2275 	snd_hda_codec_write_cache(codec, INTEL_VENDOR_NID, 0,
2276 				INTEL_SET_VENDOR_VERB, vendor_param);
2277 }
2278 
2279 /* Haswell needs to re-issue the vendor-specific verbs before turning to D0.
2280  * Otherwise you may get severe h/w communication errors.
2281  */
2282 static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
2283 				unsigned int power_state)
2284 {
2285 	if (power_state == AC_PWRST_D0) {
2286 		intel_haswell_enable_all_pins(codec, false);
2287 		intel_haswell_fixup_enable_dp12(codec);
2288 	}
2289 
2290 	snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, power_state);
2291 	snd_hda_codec_set_power_to_all(codec, fg, power_state);
2292 }
2293 
2294 static void intel_pin_eld_notify(void *audio_ptr, int port, int pipe)
2295 {
2296 	struct hda_codec *codec = audio_ptr;
2297 	int pin_nid;
2298 
2299 	/* we assume only from port-B to port-D */
2300 	if (port < 1 || port > 3)
2301 		return;
2302 
2303 	switch (codec->core.vendor_id) {
2304 	case 0x80860054: /* ILK */
2305 	case 0x80862804: /* ILK */
2306 	case 0x80862882: /* VLV */
2307 		pin_nid = port + 0x03;
2308 		break;
2309 	default:
2310 		pin_nid = port + 0x04;
2311 		break;
2312 	}
2313 
2314 	/* skip notification during system suspend (but not in runtime PM);
2315 	 * the state will be updated at resume
2316 	 */
2317 	if (snd_power_get_state(codec->card) != SNDRV_CTL_POWER_D0)
2318 		return;
2319 	/* ditto during suspend/resume process itself */
2320 	if (atomic_read(&(codec)->core.in_pm))
2321 		return;
2322 
2323 	snd_hdac_i915_set_bclk(&codec->bus->core);
2324 	check_presence_and_report(codec, pin_nid);
2325 }
2326 
2327 /* register i915 component pin_eld_notify callback */
2328 static void register_i915_notifier(struct hda_codec *codec)
2329 {
2330 	struct hdmi_spec *spec = codec->spec;
2331 
2332 	spec->use_acomp_notifier = true;
2333 	spec->i915_audio_ops.audio_ptr = codec;
2334 	/* intel_audio_codec_enable() or intel_audio_codec_disable()
2335 	 * will call pin_eld_notify with using audio_ptr pointer
2336 	 * We need make sure audio_ptr is really setup
2337 	 */
2338 	wmb();
2339 	spec->i915_audio_ops.pin_eld_notify = intel_pin_eld_notify;
2340 	snd_hdac_i915_register_notifier(&spec->i915_audio_ops);
2341 }
2342 
2343 /* setup_stream ops override for HSW+ */
2344 static int i915_hsw_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
2345 				 hda_nid_t pin_nid, u32 stream_tag, int format)
2346 {
2347 	haswell_verify_D0(codec, cvt_nid, pin_nid);
2348 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
2349 }
2350 
2351 /* pin_cvt_fixup ops override for HSW+ and VLV+ */
2352 static void i915_pin_cvt_fixup(struct hda_codec *codec,
2353 			       struct hdmi_spec_per_pin *per_pin,
2354 			       hda_nid_t cvt_nid)
2355 {
2356 	if (per_pin) {
2357 		intel_verify_pin_cvt_connect(codec, per_pin);
2358 		intel_not_share_assigned_cvt(codec, per_pin->pin_nid,
2359 					     per_pin->mux_idx);
2360 	} else {
2361 		intel_not_share_assigned_cvt_nid(codec, 0, cvt_nid);
2362 	}
2363 }
2364 
2365 /* Intel Haswell and onwards; audio component with eld notifier */
2366 static int patch_i915_hsw_hdmi(struct hda_codec *codec)
2367 {
2368 	struct hdmi_spec *spec;
2369 	int err;
2370 
2371 	/* HSW+ requires i915 binding */
2372 	if (!codec->bus->core.audio_component) {
2373 		codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n");
2374 		return -ENODEV;
2375 	}
2376 
2377 	err = alloc_generic_hdmi(codec);
2378 	if (err < 0)
2379 		return err;
2380 	spec = codec->spec;
2381 
2382 	intel_haswell_enable_all_pins(codec, true);
2383 	intel_haswell_fixup_enable_dp12(codec);
2384 
2385 	/* For Haswell/Broadwell, the controller is also in the power well and
2386 	 * can cover the codec power request, and so need not set this flag.
2387 	 */
2388 	if (!is_haswell(codec) && !is_broadwell(codec))
2389 		codec->core.link_power_control = 1;
2390 
2391 	codec->patch_ops.set_power_state = haswell_set_power_state;
2392 	codec->dp_mst = true;
2393 	codec->depop_delay = 0;
2394 	codec->auto_runtime_pm = 1;
2395 
2396 	spec->ops.setup_stream = i915_hsw_setup_stream;
2397 	spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
2398 
2399 	err = hdmi_parse_codec(codec);
2400 	if (err < 0) {
2401 		generic_spec_free(codec);
2402 		return err;
2403 	}
2404 
2405 	generic_hdmi_init_per_pins(codec);
2406 	register_i915_notifier(codec);
2407 	return 0;
2408 }
2409 
2410 /* Intel Baytrail and Braswell; with eld notifier */
2411 static int patch_i915_byt_hdmi(struct hda_codec *codec)
2412 {
2413 	struct hdmi_spec *spec;
2414 	int err;
2415 
2416 	/* requires i915 binding */
2417 	if (!codec->bus->core.audio_component) {
2418 		codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n");
2419 		return -ENODEV;
2420 	}
2421 
2422 	err = alloc_generic_hdmi(codec);
2423 	if (err < 0)
2424 		return err;
2425 	spec = codec->spec;
2426 
2427 	/* For Valleyview/Cherryview, only the display codec is in the display
2428 	 * power well and can use link_power ops to request/release the power.
2429 	 */
2430 	codec->core.link_power_control = 1;
2431 
2432 	codec->depop_delay = 0;
2433 	codec->auto_runtime_pm = 1;
2434 
2435 	spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup;
2436 
2437 	err = hdmi_parse_codec(codec);
2438 	if (err < 0) {
2439 		generic_spec_free(codec);
2440 		return err;
2441 	}
2442 
2443 	generic_hdmi_init_per_pins(codec);
2444 	register_i915_notifier(codec);
2445 	return 0;
2446 }
2447 
2448 /* Intel IronLake, SandyBridge and IvyBridge; with eld notifier */
2449 static int patch_i915_cpt_hdmi(struct hda_codec *codec)
2450 {
2451 	struct hdmi_spec *spec;
2452 	int err;
2453 
2454 	/* no i915 component should have been bound before this */
2455 	if (WARN_ON(codec->bus->core.audio_component))
2456 		return -EBUSY;
2457 
2458 	err = alloc_generic_hdmi(codec);
2459 	if (err < 0)
2460 		return err;
2461 	spec = codec->spec;
2462 
2463 	/* Try to bind with i915 now */
2464 	err = snd_hdac_i915_init(&codec->bus->core);
2465 	if (err < 0)
2466 		goto error;
2467 	spec->i915_bound = true;
2468 
2469 	err = hdmi_parse_codec(codec);
2470 	if (err < 0)
2471 		goto error;
2472 
2473 	generic_hdmi_init_per_pins(codec);
2474 	register_i915_notifier(codec);
2475 	return 0;
2476 
2477  error:
2478 	generic_spec_free(codec);
2479 	return err;
2480 }
2481 
2482 /*
2483  * Shared non-generic implementations
2484  */
2485 
2486 static int simple_playback_build_pcms(struct hda_codec *codec)
2487 {
2488 	struct hdmi_spec *spec = codec->spec;
2489 	struct hda_pcm *info;
2490 	unsigned int chans;
2491 	struct hda_pcm_stream *pstr;
2492 	struct hdmi_spec_per_cvt *per_cvt;
2493 
2494 	per_cvt = get_cvt(spec, 0);
2495 	chans = get_wcaps(codec, per_cvt->cvt_nid);
2496 	chans = get_wcaps_channels(chans);
2497 
2498 	info = snd_hda_codec_pcm_new(codec, "HDMI 0");
2499 	if (!info)
2500 		return -ENOMEM;
2501 	spec->pcm_rec[0].pcm = info;
2502 	info->pcm_type = HDA_PCM_TYPE_HDMI;
2503 	pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
2504 	*pstr = spec->pcm_playback;
2505 	pstr->nid = per_cvt->cvt_nid;
2506 	if (pstr->channels_max <= 2 && chans && chans <= 16)
2507 		pstr->channels_max = chans;
2508 
2509 	return 0;
2510 }
2511 
2512 /* unsolicited event for jack sensing */
2513 static void simple_hdmi_unsol_event(struct hda_codec *codec,
2514 				    unsigned int res)
2515 {
2516 	snd_hda_jack_set_dirty_all(codec);
2517 	snd_hda_jack_report_sync(codec);
2518 }
2519 
2520 /* generic_hdmi_build_jack can be used for simple_hdmi, too,
2521  * as long as spec->pins[] is set correctly
2522  */
2523 #define simple_hdmi_build_jack	generic_hdmi_build_jack
2524 
2525 static int simple_playback_build_controls(struct hda_codec *codec)
2526 {
2527 	struct hdmi_spec *spec = codec->spec;
2528 	struct hdmi_spec_per_cvt *per_cvt;
2529 	int err;
2530 
2531 	per_cvt = get_cvt(spec, 0);
2532 	err = snd_hda_create_dig_out_ctls(codec, per_cvt->cvt_nid,
2533 					  per_cvt->cvt_nid,
2534 					  HDA_PCM_TYPE_HDMI);
2535 	if (err < 0)
2536 		return err;
2537 	return simple_hdmi_build_jack(codec, 0);
2538 }
2539 
2540 static int simple_playback_init(struct hda_codec *codec)
2541 {
2542 	struct hdmi_spec *spec = codec->spec;
2543 	struct hdmi_spec_per_pin *per_pin = get_pin(spec, 0);
2544 	hda_nid_t pin = per_pin->pin_nid;
2545 
2546 	snd_hda_codec_write(codec, pin, 0,
2547 			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
2548 	/* some codecs require to unmute the pin */
2549 	if (get_wcaps(codec, pin) & AC_WCAP_OUT_AMP)
2550 		snd_hda_codec_write(codec, pin, 0, AC_VERB_SET_AMP_GAIN_MUTE,
2551 				    AMP_OUT_UNMUTE);
2552 	snd_hda_jack_detect_enable(codec, pin);
2553 	return 0;
2554 }
2555 
2556 static void simple_playback_free(struct hda_codec *codec)
2557 {
2558 	struct hdmi_spec *spec = codec->spec;
2559 
2560 	hdmi_array_free(spec);
2561 	kfree(spec);
2562 }
2563 
2564 /*
2565  * Nvidia specific implementations
2566  */
2567 
2568 #define Nv_VERB_SET_Channel_Allocation          0xF79
2569 #define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
2570 #define Nv_VERB_SET_Audio_Protection_On         0xF98
2571 #define Nv_VERB_SET_Audio_Protection_Off        0xF99
2572 
2573 #define nvhdmi_master_con_nid_7x	0x04
2574 #define nvhdmi_master_pin_nid_7x	0x05
2575 
2576 static const hda_nid_t nvhdmi_con_nids_7x[4] = {
2577 	/*front, rear, clfe, rear_surr */
2578 	0x6, 0x8, 0xa, 0xc,
2579 };
2580 
2581 static const struct hda_verb nvhdmi_basic_init_7x_2ch[] = {
2582 	/* set audio protect on */
2583 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2584 	/* enable digital output on pin widget */
2585 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2586 	{} /* terminator */
2587 };
2588 
2589 static const struct hda_verb nvhdmi_basic_init_7x_8ch[] = {
2590 	/* set audio protect on */
2591 	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
2592 	/* enable digital output on pin widget */
2593 	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2594 	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2595 	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2596 	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2597 	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
2598 	{} /* terminator */
2599 };
2600 
2601 #ifdef LIMITED_RATE_FMT_SUPPORT
2602 /* support only the safe format and rate */
2603 #define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
2604 #define SUPPORTED_MAXBPS	16
2605 #define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
2606 #else
2607 /* support all rates and formats */
2608 #define SUPPORTED_RATES \
2609 	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
2610 	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
2611 	 SNDRV_PCM_RATE_192000)
2612 #define SUPPORTED_MAXBPS	24
2613 #define SUPPORTED_FORMATS \
2614 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
2615 #endif
2616 
2617 static int nvhdmi_7x_init_2ch(struct hda_codec *codec)
2618 {
2619 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_2ch);
2620 	return 0;
2621 }
2622 
2623 static int nvhdmi_7x_init_8ch(struct hda_codec *codec)
2624 {
2625 	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x_8ch);
2626 	return 0;
2627 }
2628 
2629 static unsigned int channels_2_6_8[] = {
2630 	2, 6, 8
2631 };
2632 
2633 static unsigned int channels_2_8[] = {
2634 	2, 8
2635 };
2636 
2637 static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
2638 	.count = ARRAY_SIZE(channels_2_6_8),
2639 	.list = channels_2_6_8,
2640 	.mask = 0,
2641 };
2642 
2643 static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
2644 	.count = ARRAY_SIZE(channels_2_8),
2645 	.list = channels_2_8,
2646 	.mask = 0,
2647 };
2648 
2649 static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
2650 				    struct hda_codec *codec,
2651 				    struct snd_pcm_substream *substream)
2652 {
2653 	struct hdmi_spec *spec = codec->spec;
2654 	struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
2655 
2656 	switch (codec->preset->vendor_id) {
2657 	case 0x10de0002:
2658 	case 0x10de0003:
2659 	case 0x10de0005:
2660 	case 0x10de0006:
2661 		hw_constraints_channels = &hw_constraints_2_8_channels;
2662 		break;
2663 	case 0x10de0007:
2664 		hw_constraints_channels = &hw_constraints_2_6_8_channels;
2665 		break;
2666 	default:
2667 		break;
2668 	}
2669 
2670 	if (hw_constraints_channels != NULL) {
2671 		snd_pcm_hw_constraint_list(substream->runtime, 0,
2672 				SNDRV_PCM_HW_PARAM_CHANNELS,
2673 				hw_constraints_channels);
2674 	} else {
2675 		snd_pcm_hw_constraint_step(substream->runtime, 0,
2676 					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2677 	}
2678 
2679 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
2680 }
2681 
2682 static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
2683 				     struct hda_codec *codec,
2684 				     struct snd_pcm_substream *substream)
2685 {
2686 	struct hdmi_spec *spec = codec->spec;
2687 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2688 }
2689 
2690 static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
2691 				       struct hda_codec *codec,
2692 				       unsigned int stream_tag,
2693 				       unsigned int format,
2694 				       struct snd_pcm_substream *substream)
2695 {
2696 	struct hdmi_spec *spec = codec->spec;
2697 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
2698 					     stream_tag, format, substream);
2699 }
2700 
2701 static const struct hda_pcm_stream simple_pcm_playback = {
2702 	.substreams = 1,
2703 	.channels_min = 2,
2704 	.channels_max = 2,
2705 	.ops = {
2706 		.open = simple_playback_pcm_open,
2707 		.close = simple_playback_pcm_close,
2708 		.prepare = simple_playback_pcm_prepare
2709 	},
2710 };
2711 
2712 static const struct hda_codec_ops simple_hdmi_patch_ops = {
2713 	.build_controls = simple_playback_build_controls,
2714 	.build_pcms = simple_playback_build_pcms,
2715 	.init = simple_playback_init,
2716 	.free = simple_playback_free,
2717 	.unsol_event = simple_hdmi_unsol_event,
2718 };
2719 
2720 static int patch_simple_hdmi(struct hda_codec *codec,
2721 			     hda_nid_t cvt_nid, hda_nid_t pin_nid)
2722 {
2723 	struct hdmi_spec *spec;
2724 	struct hdmi_spec_per_cvt *per_cvt;
2725 	struct hdmi_spec_per_pin *per_pin;
2726 
2727 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
2728 	if (!spec)
2729 		return -ENOMEM;
2730 
2731 	codec->spec = spec;
2732 	hdmi_array_init(spec, 1);
2733 
2734 	spec->multiout.num_dacs = 0;  /* no analog */
2735 	spec->multiout.max_channels = 2;
2736 	spec->multiout.dig_out_nid = cvt_nid;
2737 	spec->num_cvts = 1;
2738 	spec->num_pins = 1;
2739 	per_pin = snd_array_new(&spec->pins);
2740 	per_cvt = snd_array_new(&spec->cvts);
2741 	if (!per_pin || !per_cvt) {
2742 		simple_playback_free(codec);
2743 		return -ENOMEM;
2744 	}
2745 	per_cvt->cvt_nid = cvt_nid;
2746 	per_pin->pin_nid = pin_nid;
2747 	spec->pcm_playback = simple_pcm_playback;
2748 
2749 	codec->patch_ops = simple_hdmi_patch_ops;
2750 
2751 	return 0;
2752 }
2753 
2754 static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
2755 						    int channels)
2756 {
2757 	unsigned int chanmask;
2758 	int chan = channels ? (channels - 1) : 1;
2759 
2760 	switch (channels) {
2761 	default:
2762 	case 0:
2763 	case 2:
2764 		chanmask = 0x00;
2765 		break;
2766 	case 4:
2767 		chanmask = 0x08;
2768 		break;
2769 	case 6:
2770 		chanmask = 0x0b;
2771 		break;
2772 	case 8:
2773 		chanmask = 0x13;
2774 		break;
2775 	}
2776 
2777 	/* Set the audio infoframe channel allocation and checksum fields.  The
2778 	 * channel count is computed implicitly by the hardware. */
2779 	snd_hda_codec_write(codec, 0x1, 0,
2780 			Nv_VERB_SET_Channel_Allocation, chanmask);
2781 
2782 	snd_hda_codec_write(codec, 0x1, 0,
2783 			Nv_VERB_SET_Info_Frame_Checksum,
2784 			(0x71 - chan - chanmask));
2785 }
2786 
2787 static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
2788 				   struct hda_codec *codec,
2789 				   struct snd_pcm_substream *substream)
2790 {
2791 	struct hdmi_spec *spec = codec->spec;
2792 	int i;
2793 
2794 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
2795 			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
2796 	for (i = 0; i < 4; i++) {
2797 		/* set the stream id */
2798 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2799 				AC_VERB_SET_CHANNEL_STREAMID, 0);
2800 		/* set the stream format */
2801 		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
2802 				AC_VERB_SET_STREAM_FORMAT, 0);
2803 	}
2804 
2805 	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
2806 	 * streams are disabled. */
2807 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
2808 
2809 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
2810 }
2811 
2812 static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
2813 				     struct hda_codec *codec,
2814 				     unsigned int stream_tag,
2815 				     unsigned int format,
2816 				     struct snd_pcm_substream *substream)
2817 {
2818 	int chs;
2819 	unsigned int dataDCC2, channel_id;
2820 	int i;
2821 	struct hdmi_spec *spec = codec->spec;
2822 	struct hda_spdif_out *spdif;
2823 	struct hdmi_spec_per_cvt *per_cvt;
2824 
2825 	mutex_lock(&codec->spdif_mutex);
2826 	per_cvt = get_cvt(spec, 0);
2827 	spdif = snd_hda_spdif_out_of_nid(codec, per_cvt->cvt_nid);
2828 
2829 	chs = substream->runtime->channels;
2830 
2831 	dataDCC2 = 0x2;
2832 
2833 	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
2834 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
2835 		snd_hda_codec_write(codec,
2836 				nvhdmi_master_con_nid_7x,
2837 				0,
2838 				AC_VERB_SET_DIGI_CONVERT_1,
2839 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2840 
2841 	/* set the stream id */
2842 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2843 			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
2844 
2845 	/* set the stream format */
2846 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
2847 			AC_VERB_SET_STREAM_FORMAT, format);
2848 
2849 	/* turn on again (if needed) */
2850 	/* enable and set the channel status audio/data flag */
2851 	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
2852 		snd_hda_codec_write(codec,
2853 				nvhdmi_master_con_nid_7x,
2854 				0,
2855 				AC_VERB_SET_DIGI_CONVERT_1,
2856 				spdif->ctls & 0xff);
2857 		snd_hda_codec_write(codec,
2858 				nvhdmi_master_con_nid_7x,
2859 				0,
2860 				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2861 	}
2862 
2863 	for (i = 0; i < 4; i++) {
2864 		if (chs == 2)
2865 			channel_id = 0;
2866 		else
2867 			channel_id = i * 2;
2868 
2869 		/* turn off SPDIF once;
2870 		 *otherwise the IEC958 bits won't be updated
2871 		 */
2872 		if (codec->spdif_status_reset &&
2873 		(spdif->ctls & AC_DIG1_ENABLE))
2874 			snd_hda_codec_write(codec,
2875 				nvhdmi_con_nids_7x[i],
2876 				0,
2877 				AC_VERB_SET_DIGI_CONVERT_1,
2878 				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
2879 		/* set the stream id */
2880 		snd_hda_codec_write(codec,
2881 				nvhdmi_con_nids_7x[i],
2882 				0,
2883 				AC_VERB_SET_CHANNEL_STREAMID,
2884 				(stream_tag << 4) | channel_id);
2885 		/* set the stream format */
2886 		snd_hda_codec_write(codec,
2887 				nvhdmi_con_nids_7x[i],
2888 				0,
2889 				AC_VERB_SET_STREAM_FORMAT,
2890 				format);
2891 		/* turn on again (if needed) */
2892 		/* enable and set the channel status audio/data flag */
2893 		if (codec->spdif_status_reset &&
2894 		(spdif->ctls & AC_DIG1_ENABLE)) {
2895 			snd_hda_codec_write(codec,
2896 					nvhdmi_con_nids_7x[i],
2897 					0,
2898 					AC_VERB_SET_DIGI_CONVERT_1,
2899 					spdif->ctls & 0xff);
2900 			snd_hda_codec_write(codec,
2901 					nvhdmi_con_nids_7x[i],
2902 					0,
2903 					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
2904 		}
2905 	}
2906 
2907 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
2908 
2909 	mutex_unlock(&codec->spdif_mutex);
2910 	return 0;
2911 }
2912 
2913 static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
2914 	.substreams = 1,
2915 	.channels_min = 2,
2916 	.channels_max = 8,
2917 	.nid = nvhdmi_master_con_nid_7x,
2918 	.rates = SUPPORTED_RATES,
2919 	.maxbps = SUPPORTED_MAXBPS,
2920 	.formats = SUPPORTED_FORMATS,
2921 	.ops = {
2922 		.open = simple_playback_pcm_open,
2923 		.close = nvhdmi_8ch_7x_pcm_close,
2924 		.prepare = nvhdmi_8ch_7x_pcm_prepare
2925 	},
2926 };
2927 
2928 static int patch_nvhdmi_2ch(struct hda_codec *codec)
2929 {
2930 	struct hdmi_spec *spec;
2931 	int err = patch_simple_hdmi(codec, nvhdmi_master_con_nid_7x,
2932 				    nvhdmi_master_pin_nid_7x);
2933 	if (err < 0)
2934 		return err;
2935 
2936 	codec->patch_ops.init = nvhdmi_7x_init_2ch;
2937 	/* override the PCM rates, etc, as the codec doesn't give full list */
2938 	spec = codec->spec;
2939 	spec->pcm_playback.rates = SUPPORTED_RATES;
2940 	spec->pcm_playback.maxbps = SUPPORTED_MAXBPS;
2941 	spec->pcm_playback.formats = SUPPORTED_FORMATS;
2942 	return 0;
2943 }
2944 
2945 static int nvhdmi_7x_8ch_build_pcms(struct hda_codec *codec)
2946 {
2947 	struct hdmi_spec *spec = codec->spec;
2948 	int err = simple_playback_build_pcms(codec);
2949 	if (!err) {
2950 		struct hda_pcm *info = get_pcm_rec(spec, 0);
2951 		info->own_chmap = true;
2952 	}
2953 	return err;
2954 }
2955 
2956 static int nvhdmi_7x_8ch_build_controls(struct hda_codec *codec)
2957 {
2958 	struct hdmi_spec *spec = codec->spec;
2959 	struct hda_pcm *info;
2960 	struct snd_pcm_chmap *chmap;
2961 	int err;
2962 
2963 	err = simple_playback_build_controls(codec);
2964 	if (err < 0)
2965 		return err;
2966 
2967 	/* add channel maps */
2968 	info = get_pcm_rec(spec, 0);
2969 	err = snd_pcm_add_chmap_ctls(info->pcm,
2970 				     SNDRV_PCM_STREAM_PLAYBACK,
2971 				     snd_pcm_alt_chmaps, 8, 0, &chmap);
2972 	if (err < 0)
2973 		return err;
2974 	switch (codec->preset->vendor_id) {
2975 	case 0x10de0002:
2976 	case 0x10de0003:
2977 	case 0x10de0005:
2978 	case 0x10de0006:
2979 		chmap->channel_mask = (1U << 2) | (1U << 8);
2980 		break;
2981 	case 0x10de0007:
2982 		chmap->channel_mask = (1U << 2) | (1U << 6) | (1U << 8);
2983 	}
2984 	return 0;
2985 }
2986 
2987 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
2988 {
2989 	struct hdmi_spec *spec;
2990 	int err = patch_nvhdmi_2ch(codec);
2991 	if (err < 0)
2992 		return err;
2993 	spec = codec->spec;
2994 	spec->multiout.max_channels = 8;
2995 	spec->pcm_playback = nvhdmi_pcm_playback_8ch_7x;
2996 	codec->patch_ops.init = nvhdmi_7x_init_8ch;
2997 	codec->patch_ops.build_pcms = nvhdmi_7x_8ch_build_pcms;
2998 	codec->patch_ops.build_controls = nvhdmi_7x_8ch_build_controls;
2999 
3000 	/* Initialize the audio infoframe channel mask and checksum to something
3001 	 * valid */
3002 	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
3003 
3004 	return 0;
3005 }
3006 
3007 /*
3008  * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on:
3009  * - 0x10de0015
3010  * - 0x10de0040
3011  */
3012 static int nvhdmi_chmap_cea_alloc_validate_get_type(struct hdac_chmap *chmap,
3013 		struct hdac_cea_channel_speaker_allocation *cap, int channels)
3014 {
3015 	if (cap->ca_index == 0x00 && channels == 2)
3016 		return SNDRV_CTL_TLVT_CHMAP_FIXED;
3017 
3018 	/* If the speaker allocation matches the channel count, it is OK. */
3019 	if (cap->channels != channels)
3020 		return -1;
3021 
3022 	/* all channels are remappable freely */
3023 	return SNDRV_CTL_TLVT_CHMAP_VAR;
3024 }
3025 
3026 static int nvhdmi_chmap_validate(struct hdac_chmap *chmap,
3027 		int ca, int chs, unsigned char *map)
3028 {
3029 	if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR))
3030 		return -EINVAL;
3031 
3032 	return 0;
3033 }
3034 
3035 static int patch_nvhdmi(struct hda_codec *codec)
3036 {
3037 	struct hdmi_spec *spec;
3038 	int err;
3039 
3040 	err = patch_generic_hdmi(codec);
3041 	if (err)
3042 		return err;
3043 
3044 	spec = codec->spec;
3045 	spec->dyn_pin_out = true;
3046 
3047 	spec->chmap.ops.chmap_cea_alloc_validate_get_type =
3048 		nvhdmi_chmap_cea_alloc_validate_get_type;
3049 	spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate;
3050 
3051 	return 0;
3052 }
3053 
3054 /*
3055  * The HDA codec on NVIDIA Tegra contains two scratch registers that are
3056  * accessed using vendor-defined verbs. These registers can be used for
3057  * interoperability between the HDA and HDMI drivers.
3058  */
3059 
3060 /* Audio Function Group node */
3061 #define NVIDIA_AFG_NID 0x01
3062 
3063 /*
3064  * The SCRATCH0 register is used to notify the HDMI codec of changes in audio
3065  * format. On Tegra, bit 31 is used as a trigger that causes an interrupt to
3066  * be raised in the HDMI codec. The remainder of the bits is arbitrary. This
3067  * implementation stores the HDA format (see AC_FMT_*) in bits [15:0] and an
3068  * additional bit (at position 30) to signal the validity of the format.
3069  *
3070  * | 31      | 30    | 29  16 | 15   0 |
3071  * +---------+-------+--------+--------+
3072  * | TRIGGER | VALID | UNUSED | FORMAT |
3073  * +-----------------------------------|
3074  *
3075  * Note that for the trigger bit to take effect it needs to change value
3076  * (i.e. it needs to be toggled).
3077  */
3078 #define NVIDIA_GET_SCRATCH0		0xfa6
3079 #define NVIDIA_SET_SCRATCH0_BYTE0	0xfa7
3080 #define NVIDIA_SET_SCRATCH0_BYTE1	0xfa8
3081 #define NVIDIA_SET_SCRATCH0_BYTE2	0xfa9
3082 #define NVIDIA_SET_SCRATCH0_BYTE3	0xfaa
3083 #define NVIDIA_SCRATCH_TRIGGER (1 << 7)
3084 #define NVIDIA_SCRATCH_VALID   (1 << 6)
3085 
3086 #define NVIDIA_GET_SCRATCH1		0xfab
3087 #define NVIDIA_SET_SCRATCH1_BYTE0	0xfac
3088 #define NVIDIA_SET_SCRATCH1_BYTE1	0xfad
3089 #define NVIDIA_SET_SCRATCH1_BYTE2	0xfae
3090 #define NVIDIA_SET_SCRATCH1_BYTE3	0xfaf
3091 
3092 /*
3093  * The format parameter is the HDA audio format (see AC_FMT_*). If set to 0,
3094  * the format is invalidated so that the HDMI codec can be disabled.
3095  */
3096 static void tegra_hdmi_set_format(struct hda_codec *codec, unsigned int format)
3097 {
3098 	unsigned int value;
3099 
3100 	/* bits [31:30] contain the trigger and valid bits */
3101 	value = snd_hda_codec_read(codec, NVIDIA_AFG_NID, 0,
3102 				   NVIDIA_GET_SCRATCH0, 0);
3103 	value = (value >> 24) & 0xff;
3104 
3105 	/* bits [15:0] are used to store the HDA format */
3106 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3107 			    NVIDIA_SET_SCRATCH0_BYTE0,
3108 			    (format >> 0) & 0xff);
3109 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3110 			    NVIDIA_SET_SCRATCH0_BYTE1,
3111 			    (format >> 8) & 0xff);
3112 
3113 	/* bits [16:24] are unused */
3114 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3115 			    NVIDIA_SET_SCRATCH0_BYTE2, 0);
3116 
3117 	/*
3118 	 * Bit 30 signals that the data is valid and hence that HDMI audio can
3119 	 * be enabled.
3120 	 */
3121 	if (format == 0)
3122 		value &= ~NVIDIA_SCRATCH_VALID;
3123 	else
3124 		value |= NVIDIA_SCRATCH_VALID;
3125 
3126 	/*
3127 	 * Whenever the trigger bit is toggled, an interrupt is raised in the
3128 	 * HDMI codec. The HDMI driver will use that as trigger to update its
3129 	 * configuration.
3130 	 */
3131 	value ^= NVIDIA_SCRATCH_TRIGGER;
3132 
3133 	snd_hda_codec_write(codec, NVIDIA_AFG_NID, 0,
3134 			    NVIDIA_SET_SCRATCH0_BYTE3, value);
3135 }
3136 
3137 static int tegra_hdmi_pcm_prepare(struct hda_pcm_stream *hinfo,
3138 				  struct hda_codec *codec,
3139 				  unsigned int stream_tag,
3140 				  unsigned int format,
3141 				  struct snd_pcm_substream *substream)
3142 {
3143 	int err;
3144 
3145 	err = generic_hdmi_playback_pcm_prepare(hinfo, codec, stream_tag,
3146 						format, substream);
3147 	if (err < 0)
3148 		return err;
3149 
3150 	/* notify the HDMI codec of the format change */
3151 	tegra_hdmi_set_format(codec, format);
3152 
3153 	return 0;
3154 }
3155 
3156 static int tegra_hdmi_pcm_cleanup(struct hda_pcm_stream *hinfo,
3157 				  struct hda_codec *codec,
3158 				  struct snd_pcm_substream *substream)
3159 {
3160 	/* invalidate the format in the HDMI codec */
3161 	tegra_hdmi_set_format(codec, 0);
3162 
3163 	return generic_hdmi_playback_pcm_cleanup(hinfo, codec, substream);
3164 }
3165 
3166 static struct hda_pcm *hda_find_pcm_by_type(struct hda_codec *codec, int type)
3167 {
3168 	struct hdmi_spec *spec = codec->spec;
3169 	unsigned int i;
3170 
3171 	for (i = 0; i < spec->num_pins; i++) {
3172 		struct hda_pcm *pcm = get_pcm_rec(spec, i);
3173 
3174 		if (pcm->pcm_type == type)
3175 			return pcm;
3176 	}
3177 
3178 	return NULL;
3179 }
3180 
3181 static int tegra_hdmi_build_pcms(struct hda_codec *codec)
3182 {
3183 	struct hda_pcm_stream *stream;
3184 	struct hda_pcm *pcm;
3185 	int err;
3186 
3187 	err = generic_hdmi_build_pcms(codec);
3188 	if (err < 0)
3189 		return err;
3190 
3191 	pcm = hda_find_pcm_by_type(codec, HDA_PCM_TYPE_HDMI);
3192 	if (!pcm)
3193 		return -ENODEV;
3194 
3195 	/*
3196 	 * Override ->prepare() and ->cleanup() operations to notify the HDMI
3197 	 * codec about format changes.
3198 	 */
3199 	stream = &pcm->stream[SNDRV_PCM_STREAM_PLAYBACK];
3200 	stream->ops.prepare = tegra_hdmi_pcm_prepare;
3201 	stream->ops.cleanup = tegra_hdmi_pcm_cleanup;
3202 
3203 	return 0;
3204 }
3205 
3206 static int patch_tegra_hdmi(struct hda_codec *codec)
3207 {
3208 	int err;
3209 
3210 	err = patch_generic_hdmi(codec);
3211 	if (err)
3212 		return err;
3213 
3214 	codec->patch_ops.build_pcms = tegra_hdmi_build_pcms;
3215 
3216 	return 0;
3217 }
3218 
3219 /*
3220  * ATI/AMD-specific implementations
3221  */
3222 
3223 #define is_amdhdmi_rev3_or_later(codec) \
3224 	((codec)->core.vendor_id == 0x1002aa01 && \
3225 	 ((codec)->core.revision_id & 0xff00) >= 0x0300)
3226 #define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)
3227 
3228 /* ATI/AMD specific HDA pin verbs, see the AMD HDA Verbs specification */
3229 #define ATI_VERB_SET_CHANNEL_ALLOCATION	0x771
3230 #define ATI_VERB_SET_DOWNMIX_INFO	0x772
3231 #define ATI_VERB_SET_MULTICHANNEL_01	0x777
3232 #define ATI_VERB_SET_MULTICHANNEL_23	0x778
3233 #define ATI_VERB_SET_MULTICHANNEL_45	0x779
3234 #define ATI_VERB_SET_MULTICHANNEL_67	0x77a
3235 #define ATI_VERB_SET_HBR_CONTROL	0x77c
3236 #define ATI_VERB_SET_MULTICHANNEL_1	0x785
3237 #define ATI_VERB_SET_MULTICHANNEL_3	0x786
3238 #define ATI_VERB_SET_MULTICHANNEL_5	0x787
3239 #define ATI_VERB_SET_MULTICHANNEL_7	0x788
3240 #define ATI_VERB_SET_MULTICHANNEL_MODE	0x789
3241 #define ATI_VERB_GET_CHANNEL_ALLOCATION	0xf71
3242 #define ATI_VERB_GET_DOWNMIX_INFO	0xf72
3243 #define ATI_VERB_GET_MULTICHANNEL_01	0xf77
3244 #define ATI_VERB_GET_MULTICHANNEL_23	0xf78
3245 #define ATI_VERB_GET_MULTICHANNEL_45	0xf79
3246 #define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
3247 #define ATI_VERB_GET_HBR_CONTROL	0xf7c
3248 #define ATI_VERB_GET_MULTICHANNEL_1	0xf85
3249 #define ATI_VERB_GET_MULTICHANNEL_3	0xf86
3250 #define ATI_VERB_GET_MULTICHANNEL_5	0xf87
3251 #define ATI_VERB_GET_MULTICHANNEL_7	0xf88
3252 #define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
3253 
3254 /* AMD specific HDA cvt verbs */
3255 #define ATI_VERB_SET_RAMP_RATE		0x770
3256 #define ATI_VERB_GET_RAMP_RATE		0xf70
3257 
3258 #define ATI_OUT_ENABLE 0x1
3259 
3260 #define ATI_MULTICHANNEL_MODE_PAIRED	0
3261 #define ATI_MULTICHANNEL_MODE_SINGLE	1
3262 
3263 #define ATI_HBR_CAPABLE 0x01
3264 #define ATI_HBR_ENABLE 0x10
3265 
3266 static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
3267 			   unsigned char *buf, int *eld_size)
3268 {
3269 	/* call hda_eld.c ATI/AMD-specific function */
3270 	return snd_hdmi_get_eld_ati(codec, nid, buf, eld_size,
3271 				    is_amdhdmi_rev3_or_later(codec));
3272 }
3273 
3274 static void atihdmi_pin_setup_infoframe(struct hda_codec *codec, hda_nid_t pin_nid, int ca,
3275 					int active_channels, int conn_type)
3276 {
3277 	snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);
3278 }
3279 
3280 static int atihdmi_paired_swap_fc_lfe(int pos)
3281 {
3282 	/*
3283 	 * ATI/AMD have automatic FC/LFE swap built-in
3284 	 * when in pairwise mapping mode.
3285 	 */
3286 
3287 	switch (pos) {
3288 		/* see channel_allocations[].speakers[] */
3289 		case 2: return 3;
3290 		case 3: return 2;
3291 		default: break;
3292 	}
3293 
3294 	return pos;
3295 }
3296 
3297 static int atihdmi_paired_chmap_validate(struct hdac_chmap *chmap,
3298 			int ca, int chs, unsigned char *map)
3299 {
3300 	struct hdac_cea_channel_speaker_allocation *cap;
3301 	int i, j;
3302 
3303 	/* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */
3304 
3305 	cap = snd_hdac_get_ch_alloc_from_ca(ca);
3306 	for (i = 0; i < chs; ++i) {
3307 		int mask = snd_hdac_chmap_to_spk_mask(map[i]);
3308 		bool ok = false;
3309 		bool companion_ok = false;
3310 
3311 		if (!mask)
3312 			continue;
3313 
3314 		for (j = 0 + i % 2; j < 8; j += 2) {
3315 			int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);
3316 			if (cap->speakers[chan_idx] == mask) {
3317 				/* channel is in a supported position */
3318 				ok = true;
3319 
3320 				if (i % 2 == 0 && i + 1 < chs) {
3321 					/* even channel, check the odd companion */
3322 					int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);
3323 					int comp_mask_req = snd_hdac_chmap_to_spk_mask(map[i+1]);
3324 					int comp_mask_act = cap->speakers[comp_chan_idx];
3325 
3326 					if (comp_mask_req == comp_mask_act)
3327 						companion_ok = true;
3328 					else
3329 						return -EINVAL;
3330 				}
3331 				break;
3332 			}
3333 		}
3334 
3335 		if (!ok)
3336 			return -EINVAL;
3337 
3338 		if (companion_ok)
3339 			i++; /* companion channel already checked */
3340 	}
3341 
3342 	return 0;
3343 }
3344 
3345 static int atihdmi_pin_set_slot_channel(struct hdac_device *hdac,
3346 		hda_nid_t pin_nid, int hdmi_slot, int stream_channel)
3347 {
3348 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
3349 	int verb;
3350 	int ati_channel_setup = 0;
3351 
3352 	if (hdmi_slot > 7)
3353 		return -EINVAL;
3354 
3355 	if (!has_amd_full_remap_support(codec)) {
3356 		hdmi_slot = atihdmi_paired_swap_fc_lfe(hdmi_slot);
3357 
3358 		/* In case this is an odd slot but without stream channel, do not
3359 		 * disable the slot since the corresponding even slot could have a
3360 		 * channel. In case neither have a channel, the slot pair will be
3361 		 * disabled when this function is called for the even slot. */
3362 		if (hdmi_slot % 2 != 0 && stream_channel == 0xf)
3363 			return 0;
3364 
3365 		hdmi_slot -= hdmi_slot % 2;
3366 
3367 		if (stream_channel != 0xf)
3368 			stream_channel -= stream_channel % 2;
3369 	}
3370 
3371 	verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;
3372 
3373 	/* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */
3374 
3375 	if (stream_channel != 0xf)
3376 		ati_channel_setup = (stream_channel << 4) | ATI_OUT_ENABLE;
3377 
3378 	return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);
3379 }
3380 
3381 static int atihdmi_pin_get_slot_channel(struct hdac_device *hdac,
3382 				hda_nid_t pin_nid, int asp_slot)
3383 {
3384 	struct hda_codec *codec = container_of(hdac, struct hda_codec, core);
3385 	bool was_odd = false;
3386 	int ati_asp_slot = asp_slot;
3387 	int verb;
3388 	int ati_channel_setup;
3389 
3390 	if (asp_slot > 7)
3391 		return -EINVAL;
3392 
3393 	if (!has_amd_full_remap_support(codec)) {
3394 		ati_asp_slot = atihdmi_paired_swap_fc_lfe(asp_slot);
3395 		if (ati_asp_slot % 2 != 0) {
3396 			ati_asp_slot -= 1;
3397 			was_odd = true;
3398 		}
3399 	}
3400 
3401 	verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;
3402 
3403 	ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);
3404 
3405 	if (!(ati_channel_setup & ATI_OUT_ENABLE))
3406 		return 0xf;
3407 
3408 	return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;
3409 }
3410 
3411 static int atihdmi_paired_chmap_cea_alloc_validate_get_type(
3412 		struct hdac_chmap *chmap,
3413 		struct hdac_cea_channel_speaker_allocation *cap,
3414 		int channels)
3415 {
3416 	int c;
3417 
3418 	/*
3419 	 * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so
3420 	 * we need to take that into account (a single channel may take 2
3421 	 * channel slots if we need to carry a silent channel next to it).
3422 	 * On Rev3+ AMD codecs this function is not used.
3423 	 */
3424 	int chanpairs = 0;
3425 
3426 	/* We only produce even-numbered channel count TLVs */
3427 	if ((channels % 2) != 0)
3428 		return -1;
3429 
3430 	for (c = 0; c < 7; c += 2) {
3431 		if (cap->speakers[c] || cap->speakers[c+1])
3432 			chanpairs++;
3433 	}
3434 
3435 	if (chanpairs * 2 != channels)
3436 		return -1;
3437 
3438 	return SNDRV_CTL_TLVT_CHMAP_PAIRED;
3439 }
3440 
3441 static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct hdac_chmap *hchmap,
3442 		struct hdac_cea_channel_speaker_allocation *cap,
3443 		unsigned int *chmap, int channels)
3444 {
3445 	/* produce paired maps for pre-rev3 ATI/AMD codecs */
3446 	int count = 0;
3447 	int c;
3448 
3449 	for (c = 7; c >= 0; c--) {
3450 		int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);
3451 		int spk = cap->speakers[chan];
3452 		if (!spk) {
3453 			/* add N/A channel if the companion channel is occupied */
3454 			if (cap->speakers[chan + (chan % 2 ? -1 : 1)])
3455 				chmap[count++] = SNDRV_CHMAP_NA;
3456 
3457 			continue;
3458 		}
3459 
3460 		chmap[count++] = snd_hdac_spk_to_chmap(spk);
3461 	}
3462 
3463 	WARN_ON(count != channels);
3464 }
3465 
3466 static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
3467 				 bool hbr)
3468 {
3469 	int hbr_ctl, hbr_ctl_new;
3470 
3471 	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
3472 	if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {
3473 		if (hbr)
3474 			hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
3475 		else
3476 			hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
3477 
3478 		codec_dbg(codec,
3479 			  "atihdmi_pin_hbr_setup: NID=0x%x, %shbr-ctl=0x%x\n",
3480 				pin_nid,
3481 				hbr_ctl == hbr_ctl_new ? "" : "new-",
3482 				hbr_ctl_new);
3483 
3484 		if (hbr_ctl != hbr_ctl_new)
3485 			snd_hda_codec_write(codec, pin_nid, 0,
3486 						ATI_VERB_SET_HBR_CONTROL,
3487 						hbr_ctl_new);
3488 
3489 	} else if (hbr)
3490 		return -EINVAL;
3491 
3492 	return 0;
3493 }
3494 
3495 static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
3496 				hda_nid_t pin_nid, u32 stream_tag, int format)
3497 {
3498 
3499 	if (is_amdhdmi_rev3_or_later(codec)) {
3500 		int ramp_rate = 180; /* default as per AMD spec */
3501 		/* disable ramp-up/down for non-pcm as per AMD spec */
3502 		if (format & AC_FMT_TYPE_NON_PCM)
3503 			ramp_rate = 0;
3504 
3505 		snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);
3506 	}
3507 
3508 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
3509 }
3510 
3511 
3512 static int atihdmi_init(struct hda_codec *codec)
3513 {
3514 	struct hdmi_spec *spec = codec->spec;
3515 	int pin_idx, err;
3516 
3517 	err = generic_hdmi_init(codec);
3518 
3519 	if (err)
3520 		return err;
3521 
3522 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
3523 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
3524 
3525 		/* make sure downmix information in infoframe is zero */
3526 		snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);
3527 
3528 		/* enable channel-wise remap mode if supported */
3529 		if (has_amd_full_remap_support(codec))
3530 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
3531 					    ATI_VERB_SET_MULTICHANNEL_MODE,
3532 					    ATI_MULTICHANNEL_MODE_SINGLE);
3533 	}
3534 
3535 	return 0;
3536 }
3537 
3538 static int patch_atihdmi(struct hda_codec *codec)
3539 {
3540 	struct hdmi_spec *spec;
3541 	struct hdmi_spec_per_cvt *per_cvt;
3542 	int err, cvt_idx;
3543 
3544 	err = patch_generic_hdmi(codec);
3545 
3546 	if (err)
3547 		return err;
3548 
3549 	codec->patch_ops.init = atihdmi_init;
3550 
3551 	spec = codec->spec;
3552 
3553 	spec->ops.pin_get_eld = atihdmi_pin_get_eld;
3554 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
3555 	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
3556 	spec->ops.setup_stream = atihdmi_setup_stream;
3557 
3558 	spec->chmap.ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
3559 	spec->chmap.ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
3560 
3561 	if (!has_amd_full_remap_support(codec)) {
3562 		/* override to ATI/AMD-specific versions with pairwise mapping */
3563 		spec->chmap.ops.chmap_cea_alloc_validate_get_type =
3564 			atihdmi_paired_chmap_cea_alloc_validate_get_type;
3565 		spec->chmap.ops.cea_alloc_to_tlv_chmap =
3566 				atihdmi_paired_cea_alloc_to_tlv_chmap;
3567 		spec->chmap.ops.chmap_validate = atihdmi_paired_chmap_validate;
3568 	}
3569 
3570 	/* ATI/AMD converters do not advertise all of their capabilities */
3571 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
3572 		per_cvt = get_cvt(spec, cvt_idx);
3573 		per_cvt->channels_max = max(per_cvt->channels_max, 8u);
3574 		per_cvt->rates |= SUPPORTED_RATES;
3575 		per_cvt->formats |= SUPPORTED_FORMATS;
3576 		per_cvt->maxbps = max(per_cvt->maxbps, 24u);
3577 	}
3578 
3579 	spec->chmap.channels_max = max(spec->chmap.channels_max, 8u);
3580 
3581 	return 0;
3582 }
3583 
3584 /* VIA HDMI Implementation */
3585 #define VIAHDMI_CVT_NID	0x02	/* audio converter1 */
3586 #define VIAHDMI_PIN_NID	0x03	/* HDMI output pin1 */
3587 
3588 static int patch_via_hdmi(struct hda_codec *codec)
3589 {
3590 	return patch_simple_hdmi(codec, VIAHDMI_CVT_NID, VIAHDMI_PIN_NID);
3591 }
3592 
3593 /*
3594  * patch entries
3595  */
3596 static const struct hda_device_id snd_hda_id_hdmi[] = {
3597 HDA_CODEC_ENTRY(0x1002793c, "RS600 HDMI",	patch_atihdmi),
3598 HDA_CODEC_ENTRY(0x10027919, "RS600 HDMI",	patch_atihdmi),
3599 HDA_CODEC_ENTRY(0x1002791a, "RS690/780 HDMI",	patch_atihdmi),
3600 HDA_CODEC_ENTRY(0x1002aa01, "R6xx HDMI",	patch_atihdmi),
3601 HDA_CODEC_ENTRY(0x10951390, "SiI1390 HDMI",	patch_generic_hdmi),
3602 HDA_CODEC_ENTRY(0x10951392, "SiI1392 HDMI",	patch_generic_hdmi),
3603 HDA_CODEC_ENTRY(0x17e80047, "Chrontel HDMI",	patch_generic_hdmi),
3604 HDA_CODEC_ENTRY(0x10de0002, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3605 HDA_CODEC_ENTRY(0x10de0003, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3606 HDA_CODEC_ENTRY(0x10de0005, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3607 HDA_CODEC_ENTRY(0x10de0006, "MCP77/78 HDMI",	patch_nvhdmi_8ch_7x),
3608 HDA_CODEC_ENTRY(0x10de0007, "MCP79/7A HDMI",	patch_nvhdmi_8ch_7x),
3609 HDA_CODEC_ENTRY(0x10de000a, "GPU 0a HDMI/DP",	patch_nvhdmi),
3610 HDA_CODEC_ENTRY(0x10de000b, "GPU 0b HDMI/DP",	patch_nvhdmi),
3611 HDA_CODEC_ENTRY(0x10de000c, "MCP89 HDMI",	patch_nvhdmi),
3612 HDA_CODEC_ENTRY(0x10de000d, "GPU 0d HDMI/DP",	patch_nvhdmi),
3613 HDA_CODEC_ENTRY(0x10de0010, "GPU 10 HDMI/DP",	patch_nvhdmi),
3614 HDA_CODEC_ENTRY(0x10de0011, "GPU 11 HDMI/DP",	patch_nvhdmi),
3615 HDA_CODEC_ENTRY(0x10de0012, "GPU 12 HDMI/DP",	patch_nvhdmi),
3616 HDA_CODEC_ENTRY(0x10de0013, "GPU 13 HDMI/DP",	patch_nvhdmi),
3617 HDA_CODEC_ENTRY(0x10de0014, "GPU 14 HDMI/DP",	patch_nvhdmi),
3618 HDA_CODEC_ENTRY(0x10de0015, "GPU 15 HDMI/DP",	patch_nvhdmi),
3619 HDA_CODEC_ENTRY(0x10de0016, "GPU 16 HDMI/DP",	patch_nvhdmi),
3620 /* 17 is known to be absent */
3621 HDA_CODEC_ENTRY(0x10de0018, "GPU 18 HDMI/DP",	patch_nvhdmi),
3622 HDA_CODEC_ENTRY(0x10de0019, "GPU 19 HDMI/DP",	patch_nvhdmi),
3623 HDA_CODEC_ENTRY(0x10de001a, "GPU 1a HDMI/DP",	patch_nvhdmi),
3624 HDA_CODEC_ENTRY(0x10de001b, "GPU 1b HDMI/DP",	patch_nvhdmi),
3625 HDA_CODEC_ENTRY(0x10de001c, "GPU 1c HDMI/DP",	patch_nvhdmi),
3626 HDA_CODEC_ENTRY(0x10de0020, "Tegra30 HDMI",	patch_tegra_hdmi),
3627 HDA_CODEC_ENTRY(0x10de0022, "Tegra114 HDMI",	patch_tegra_hdmi),
3628 HDA_CODEC_ENTRY(0x10de0028, "Tegra124 HDMI",	patch_tegra_hdmi),
3629 HDA_CODEC_ENTRY(0x10de0029, "Tegra210 HDMI/DP",	patch_tegra_hdmi),
3630 HDA_CODEC_ENTRY(0x10de0040, "GPU 40 HDMI/DP",	patch_nvhdmi),
3631 HDA_CODEC_ENTRY(0x10de0041, "GPU 41 HDMI/DP",	patch_nvhdmi),
3632 HDA_CODEC_ENTRY(0x10de0042, "GPU 42 HDMI/DP",	patch_nvhdmi),
3633 HDA_CODEC_ENTRY(0x10de0043, "GPU 43 HDMI/DP",	patch_nvhdmi),
3634 HDA_CODEC_ENTRY(0x10de0044, "GPU 44 HDMI/DP",	patch_nvhdmi),
3635 HDA_CODEC_ENTRY(0x10de0051, "GPU 51 HDMI/DP",	patch_nvhdmi),
3636 HDA_CODEC_ENTRY(0x10de0060, "GPU 60 HDMI/DP",	patch_nvhdmi),
3637 HDA_CODEC_ENTRY(0x10de0067, "MCP67 HDMI",	patch_nvhdmi_2ch),
3638 HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP",	patch_nvhdmi),
3639 HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP",	patch_nvhdmi),
3640 HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP",	patch_nvhdmi),
3641 HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP",	patch_nvhdmi),
3642 HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP",	patch_nvhdmi),
3643 HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP",	patch_nvhdmi),
3644 HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI",	patch_nvhdmi_2ch),
3645 HDA_CODEC_ENTRY(0x11069f80, "VX900 HDMI/DP",	patch_via_hdmi),
3646 HDA_CODEC_ENTRY(0x11069f81, "VX900 HDMI/DP",	patch_via_hdmi),
3647 HDA_CODEC_ENTRY(0x11069f84, "VX11 HDMI/DP",	patch_generic_hdmi),
3648 HDA_CODEC_ENTRY(0x11069f85, "VX11 HDMI/DP",	patch_generic_hdmi),
3649 HDA_CODEC_ENTRY(0x80860054, "IbexPeak HDMI",	patch_i915_cpt_hdmi),
3650 HDA_CODEC_ENTRY(0x80862801, "Bearlake HDMI",	patch_generic_hdmi),
3651 HDA_CODEC_ENTRY(0x80862802, "Cantiga HDMI",	patch_generic_hdmi),
3652 HDA_CODEC_ENTRY(0x80862803, "Eaglelake HDMI",	patch_generic_hdmi),
3653 HDA_CODEC_ENTRY(0x80862804, "IbexPeak HDMI",	patch_i915_cpt_hdmi),
3654 HDA_CODEC_ENTRY(0x80862805, "CougarPoint HDMI",	patch_i915_cpt_hdmi),
3655 HDA_CODEC_ENTRY(0x80862806, "PantherPoint HDMI", patch_i915_cpt_hdmi),
3656 HDA_CODEC_ENTRY(0x80862807, "Haswell HDMI",	patch_i915_hsw_hdmi),
3657 HDA_CODEC_ENTRY(0x80862808, "Broadwell HDMI",	patch_i915_hsw_hdmi),
3658 HDA_CODEC_ENTRY(0x80862809, "Skylake HDMI",	patch_i915_hsw_hdmi),
3659 HDA_CODEC_ENTRY(0x8086280a, "Broxton HDMI",	patch_i915_hsw_hdmi),
3660 HDA_CODEC_ENTRY(0x8086280b, "Kabylake HDMI",	patch_i915_hsw_hdmi),
3661 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
3662 HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI",	patch_i915_byt_hdmi),
3663 HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",	patch_i915_byt_hdmi),
3664 HDA_CODEC_ENTRY(0x808629fb, "Crestline HDMI",	patch_generic_hdmi),
3665 /* special ID for generic HDMI */
3666 HDA_CODEC_ENTRY(HDA_CODEC_ID_GENERIC_HDMI, "Generic HDMI", patch_generic_hdmi),
3667 {} /* terminator */
3668 };
3669 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_hdmi);
3670 
3671 MODULE_LICENSE("GPL");
3672 MODULE_DESCRIPTION("HDMI HD-audio codec");
3673 MODULE_ALIAS("snd-hda-codec-intelhdmi");
3674 MODULE_ALIAS("snd-hda-codec-nvhdmi");
3675 MODULE_ALIAS("snd-hda-codec-atihdmi");
3676 
3677 static struct hda_codec_driver hdmi_driver = {
3678 	.id = snd_hda_id_hdmi,
3679 };
3680 
3681 module_hda_codec_driver(hdmi_driver);
3682