ASoC: intel: skl: Fix display power regression
[sfrench/cifs-2.6.git] / sound / soc / codecs / hdac_hdmi.c
1 /*
2  *  hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
3  *
4  *  Copyright (C) 2014-2015 Intel Corp
5  *  Author: Samreen Nilofer <samreen.nilofer@intel.com>
6  *          Subhransu S. Prusty <subhransu.s.prusty@intel.com>
7  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8  *
9  *  This program is free software; you can redistribute it and/or modify
10  *  it under the terms of the GNU General Public License as published by
11  *  the Free Software Foundation; version 2 of the License.
12  *
13  *  This program is distributed in the hope that it will be useful, but
14  *  WITHOUT ANY WARRANTY; without even the implied warranty of
15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  *  General Public License for more details.
17  *
18  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19  */
20 #include <linux/init.h>
21 #include <linux/delay.h>
22 #include <linux/module.h>
23 #include <linux/pm_runtime.h>
24 #include <linux/hdmi.h>
25 #include <drm/drm_edid.h>
26 #include <sound/pcm_params.h>
27 #include <sound/jack.h>
28 #include <sound/soc.h>
29 #include <sound/hdaudio_ext.h>
30 #include <sound/hda_i915.h>
31 #include <sound/pcm_drm_eld.h>
32 #include <sound/hda_chmap.h>
33 #include "../../hda/local.h"
34 #include "hdac_hdmi.h"
35
36 #define NAME_SIZE       32
37
38 #define AMP_OUT_MUTE            0xb080
39 #define AMP_OUT_UNMUTE          0xb000
40 #define PIN_OUT                 (AC_PINCTL_OUT_EN)
41
42 #define HDA_MAX_CONNECTIONS     32
43
44 #define HDA_MAX_CVTS            3
45 #define HDA_MAX_PORTS           3
46
47 #define ELD_MAX_SIZE    256
48 #define ELD_FIXED_BYTES 20
49
50 #define ELD_VER_CEA_861D 2
51 #define ELD_VER_PARTIAL 31
52 #define ELD_MAX_MNL     16
53
54 struct hdac_hdmi_cvt_params {
55         unsigned int channels_min;
56         unsigned int channels_max;
57         u32 rates;
58         u64 formats;
59         unsigned int maxbps;
60 };
61
62 struct hdac_hdmi_cvt {
63         struct list_head head;
64         hda_nid_t nid;
65         const char *name;
66         struct hdac_hdmi_cvt_params params;
67 };
68
69 /* Currently only spk_alloc, more to be added */
70 struct hdac_hdmi_parsed_eld {
71         u8 spk_alloc;
72 };
73
74 struct hdac_hdmi_eld {
75         bool    monitor_present;
76         bool    eld_valid;
77         int     eld_size;
78         char    eld_buffer[ELD_MAX_SIZE];
79         struct  hdac_hdmi_parsed_eld info;
80 };
81
82 struct hdac_hdmi_pin {
83         struct list_head head;
84         hda_nid_t nid;
85         bool mst_capable;
86         struct hdac_hdmi_port *ports;
87         int num_ports;
88         struct hdac_device *hdev;
89 };
90
91 struct hdac_hdmi_port {
92         struct list_head head;
93         int id;
94         struct hdac_hdmi_pin *pin;
95         int num_mux_nids;
96         hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
97         struct hdac_hdmi_eld eld;
98         const char *jack_pin;
99         struct snd_soc_dapm_context *dapm;
100         const char *output_pin;
101 };
102
103 struct hdac_hdmi_pcm {
104         struct list_head head;
105         int pcm_id;
106         struct list_head port_list;
107         struct hdac_hdmi_cvt *cvt;
108         struct snd_soc_jack *jack;
109         int stream_tag;
110         int channels;
111         int format;
112         bool chmap_set;
113         unsigned char chmap[8]; /* ALSA API channel-map */
114         struct mutex lock;
115         int jack_event;
116 };
117
118 struct hdac_hdmi_dai_port_map {
119         int dai_id;
120         struct hdac_hdmi_port *port;
121         struct hdac_hdmi_cvt *cvt;
122 };
123
124 /*
125  * pin to port mapping table where the value indicate the pin number and
126  * the index indicate the port number with 1 base.
127  */
128 static const int icl_pin2port_map[] = {0x4, 0x6, 0x8, 0xa, 0xb};
129
130 struct hdac_hdmi_drv_data {
131         unsigned int vendor_nid;
132         const int *port_map; /* pin to port mapping table */
133         int port_num;
134 };
135
136 struct hdac_hdmi_priv {
137         struct hdac_device *hdev;
138         struct snd_soc_component *component;
139         struct snd_card *card;
140         struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
141         struct list_head pin_list;
142         struct list_head cvt_list;
143         struct list_head pcm_list;
144         int num_pin;
145         int num_cvt;
146         int num_ports;
147         struct mutex pin_mutex;
148         struct hdac_chmap chmap;
149         struct hdac_hdmi_drv_data *drv_data;
150         struct snd_soc_dai_driver *dai_drv;
151 };
152
153 #define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
154
155 static struct hdac_hdmi_pcm *
156 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
157                            struct hdac_hdmi_cvt *cvt)
158 {
159         struct hdac_hdmi_pcm *pcm = NULL;
160
161         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
162                 if (pcm->cvt == cvt)
163                         break;
164         }
165
166         return pcm;
167 }
168
169 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
170                 struct hdac_hdmi_port *port, bool is_connect)
171 {
172         struct hdac_device *hdev = port->pin->hdev;
173
174         if (is_connect)
175                 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
176         else
177                 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
178
179         if (is_connect) {
180                 /*
181                  * Report Jack connect event when a device is connected
182                  * for the first time where same PCM is attached to multiple
183                  * ports.
184                  */
185                 if (pcm->jack_event == 0) {
186                         dev_dbg(&hdev->dev,
187                                         "jack report for pcm=%d\n",
188                                         pcm->pcm_id);
189                         snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
190                                                 SND_JACK_AVOUT);
191                 }
192                 pcm->jack_event++;
193         } else {
194                 /*
195                  * Report Jack disconnect event when a device is disconnected
196                  * is the only last connected device when same PCM is attached
197                  * to multiple ports.
198                  */
199                 if (pcm->jack_event == 1)
200                         snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
201                 if (pcm->jack_event > 0)
202                         pcm->jack_event--;
203         }
204
205         snd_soc_dapm_sync(port->dapm);
206 }
207
208 /* MST supported verbs */
209 /*
210  * Get the no devices that can be connected to a port on the Pin widget.
211  */
212 static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
213 {
214         unsigned int caps;
215         unsigned int type, param;
216
217         caps = get_wcaps(hdev, nid);
218         type = get_wcaps_type(caps);
219
220         if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
221                 return 0;
222
223         param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
224         if (param == -1)
225                 return param;
226
227         return param & AC_DEV_LIST_LEN_MASK;
228 }
229
230 /*
231  * Get the port entry select on the pin. Return the port entry
232  * id selected on the pin. Return 0 means the first port entry
233  * is selected or MST is not supported.
234  */
235 static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
236                                         struct hdac_hdmi_port *port)
237 {
238         return snd_hdac_codec_read(hdev, port->pin->nid,
239                                 0, AC_VERB_GET_DEVICE_SEL, 0);
240 }
241
242 /*
243  * Sets the selected port entry for the configuring Pin widget verb.
244  * returns error if port set is not equal to port get otherwise success
245  */
246 static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
247                                         struct hdac_hdmi_port *port)
248 {
249         int num_ports;
250
251         if (!port->pin->mst_capable)
252                 return 0;
253
254         /* AC_PAR_DEVLIST_LEN is 0 based. */
255         num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
256         if (num_ports < 0)
257                 return -EIO;
258         /*
259          * Device List Length is a 0 based integer value indicating the
260          * number of sink device that a MST Pin Widget can support.
261          */
262         if (num_ports + 1  < port->id)
263                 return 0;
264
265         snd_hdac_codec_write(hdev, port->pin->nid, 0,
266                         AC_VERB_SET_DEVICE_SEL, port->id);
267
268         if (port->id != hdac_hdmi_port_select_get(hdev, port))
269                 return -EIO;
270
271         dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
272
273         return 0;
274 }
275
276 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
277                                                 int pcm_idx)
278 {
279         struct hdac_hdmi_pcm *pcm;
280
281         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
282                 if (pcm->pcm_id == pcm_idx)
283                         return pcm;
284         }
285
286         return NULL;
287 }
288
289 static unsigned int sad_format(const u8 *sad)
290 {
291         return ((sad[0] >> 0x3) & 0x1f);
292 }
293
294 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
295 {
296         return (sad[2] & 7);
297 }
298
299 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
300                                                 void *eld)
301 {
302         u64 formats = SNDRV_PCM_FMTBIT_S16;
303         int i;
304         const u8 *sad, *eld_buf = eld;
305
306         sad = drm_eld_sad(eld_buf);
307         if (!sad)
308                 goto format_constraint;
309
310         for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
311                 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
312
313                         /*
314                          * the controller support 20 and 24 bits in 32 bit
315                          * container so we set S32
316                          */
317                         if (sad_sample_bits_lpcm(sad) & 0x6)
318                                 formats |= SNDRV_PCM_FMTBIT_S32;
319                 }
320         }
321
322 format_constraint:
323         return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
324                                 formats);
325
326 }
327
328 static void
329 hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
330                                 int packet_index, int byte_index)
331 {
332         int val;
333
334         val = (packet_index << 5) | (byte_index & 0x1f);
335         snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
336 }
337
338 struct dp_audio_infoframe {
339         u8 type; /* 0x84 */
340         u8 len;  /* 0x1b */
341         u8 ver;  /* 0x11 << 2 */
342
343         u8 CC02_CT47;   /* match with HDMI infoframe from this on */
344         u8 SS01_SF24;
345         u8 CXT04;
346         u8 CA;
347         u8 LFEPBL01_LSV36_DM_INH7;
348 };
349
350 static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev,
351                    struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
352 {
353         uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
354         struct hdmi_audio_infoframe frame;
355         struct hdac_hdmi_pin *pin = port->pin;
356         struct dp_audio_infoframe dp_ai;
357         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
358         struct hdac_hdmi_cvt *cvt = pcm->cvt;
359         u8 *dip;
360         int ret;
361         int i;
362         const u8 *eld_buf;
363         u8 conn_type;
364         int channels, ca;
365
366         ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc,
367                         pcm->channels, pcm->chmap_set, true, pcm->chmap);
368
369         channels = snd_hdac_get_active_channels(ca);
370         hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels);
371
372         snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
373                                 pcm->channels, pcm->chmap, pcm->chmap_set);
374
375         eld_buf = port->eld.eld_buffer;
376         conn_type = drm_eld_get_conn_type(eld_buf);
377
378         switch (conn_type) {
379         case DRM_ELD_CONN_TYPE_HDMI:
380                 hdmi_audio_infoframe_init(&frame);
381
382                 frame.channels = channels;
383                 frame.channel_allocation = ca;
384
385                 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
386                 if (ret < 0)
387                         return ret;
388
389                 break;
390
391         case DRM_ELD_CONN_TYPE_DP:
392                 memset(&dp_ai, 0, sizeof(dp_ai));
393                 dp_ai.type      = 0x84;
394                 dp_ai.len       = 0x1b;
395                 dp_ai.ver       = 0x11 << 2;
396                 dp_ai.CC02_CT47 = channels - 1;
397                 dp_ai.CA        = ca;
398
399                 dip = (u8 *)&dp_ai;
400                 break;
401
402         default:
403                 dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type);
404                 return -EIO;
405         }
406
407         /* stop infoframe transmission */
408         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
409         snd_hdac_codec_write(hdev, pin->nid, 0,
410                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
411
412
413         /*  Fill infoframe. Index auto-incremented */
414         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
415         if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
416                 for (i = 0; i < sizeof(buffer); i++)
417                         snd_hdac_codec_write(hdev, pin->nid, 0,
418                                 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
419         } else {
420                 for (i = 0; i < sizeof(dp_ai); i++)
421                         snd_hdac_codec_write(hdev, pin->nid, 0,
422                                 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
423         }
424
425         /* Start infoframe */
426         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
427         snd_hdac_codec_write(hdev, pin->nid, 0,
428                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
429
430         return 0;
431 }
432
433 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
434                 unsigned int tx_mask, unsigned int rx_mask,
435                 int slots, int slot_width)
436 {
437         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
438         struct hdac_device *hdev = hdmi->hdev;
439         struct hdac_hdmi_dai_port_map *dai_map;
440         struct hdac_hdmi_pcm *pcm;
441
442         dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, tx_mask);
443
444         dai_map = &hdmi->dai_map[dai->id];
445
446         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
447
448         if (pcm)
449                 pcm->stream_tag = (tx_mask << 4);
450
451         return 0;
452 }
453
454 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
455         struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
456 {
457         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
458         struct hdac_device *hdev = hdmi->hdev;
459         struct hdac_hdmi_dai_port_map *dai_map;
460         struct hdac_hdmi_port *port;
461         struct hdac_hdmi_pcm *pcm;
462         int format;
463
464         dai_map = &hdmi->dai_map[dai->id];
465         port = dai_map->port;
466
467         if (!port)
468                 return -ENODEV;
469
470         if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) {
471                 dev_err(&hdev->dev,
472                         "device is not configured for this pin:port%d:%d\n",
473                                         port->pin->nid, port->id);
474                 return -ENODEV;
475         }
476
477         format = snd_hdac_calc_stream_format(params_rate(hparams),
478                         params_channels(hparams), params_format(hparams),
479                         dai->driver->playback.sig_bits, 0);
480
481         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
482         if (!pcm)
483                 return -EIO;
484
485         pcm->format = format;
486         pcm->channels = params_channels(hparams);
487
488         return 0;
489 }
490
491 static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
492                                         struct hdac_hdmi_pin *pin,
493                                         struct hdac_hdmi_port *port)
494 {
495         if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
496                 dev_warn(&hdev->dev,
497                         "HDMI: pin %d wcaps %#x does not support connection list\n",
498                         pin->nid, get_wcaps(hdev, pin->nid));
499                 return -EINVAL;
500         }
501
502         if (hdac_hdmi_port_select_set(hdev, port) < 0)
503                 return -EIO;
504
505         port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
506                         port->mux_nids, HDA_MAX_CONNECTIONS);
507         if (port->num_mux_nids == 0)
508                 dev_warn(&hdev->dev,
509                         "No connections found for pin:port %d:%d\n",
510                                                 pin->nid, port->id);
511
512         dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
513                         port->num_mux_nids, pin->nid, port->id);
514
515         return port->num_mux_nids;
516 }
517
518 /*
519  * Query pcm list and return port to which stream is routed.
520  *
521  * Also query connection list of the pin, to validate the cvt to port map.
522  *
523  * Same stream rendering to multiple ports simultaneously can be done
524  * possibly, but not supported for now in driver. So return the first port
525  * connected.
526  */
527 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
528                         struct hdac_device *hdev,
529                         struct hdac_hdmi_priv *hdmi,
530                         struct hdac_hdmi_cvt *cvt)
531 {
532         struct hdac_hdmi_pcm *pcm;
533         struct hdac_hdmi_port *port = NULL;
534         int ret, i;
535
536         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
537                 if (pcm->cvt == cvt) {
538                         if (list_empty(&pcm->port_list))
539                                 continue;
540
541                         list_for_each_entry(port, &pcm->port_list, head) {
542                                 mutex_lock(&pcm->lock);
543                                 ret = hdac_hdmi_query_port_connlist(hdev,
544                                                         port->pin, port);
545                                 mutex_unlock(&pcm->lock);
546                                 if (ret < 0)
547                                         continue;
548
549                                 for (i = 0; i < port->num_mux_nids; i++) {
550                                         if (port->mux_nids[i] == cvt->nid &&
551                                                 port->eld.monitor_present &&
552                                                 port->eld.eld_valid)
553                                                 return port;
554                                 }
555                         }
556                 }
557         }
558
559         return NULL;
560 }
561
562 /*
563  * This tries to get a valid pin and set the HW constraints based on the
564  * ELD. Even if a valid pin is not found return success so that device open
565  * doesn't fail.
566  */
567 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
568                         struct snd_soc_dai *dai)
569 {
570         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
571         struct hdac_device *hdev = hdmi->hdev;
572         struct hdac_hdmi_dai_port_map *dai_map;
573         struct hdac_hdmi_cvt *cvt;
574         struct hdac_hdmi_port *port;
575         int ret;
576
577         dai_map = &hdmi->dai_map[dai->id];
578
579         cvt = dai_map->cvt;
580         port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
581
582         /*
583          * To make PA and other userland happy.
584          * userland scans devices so returning error does not help.
585          */
586         if (!port)
587                 return 0;
588         if ((!port->eld.monitor_present) ||
589                         (!port->eld.eld_valid)) {
590
591                 dev_warn(&hdev->dev,
592                         "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
593                         port->eld.monitor_present, port->eld.eld_valid,
594                         port->pin->nid, port->id);
595
596                 return 0;
597         }
598
599         dai_map->port = port;
600
601         ret = hdac_hdmi_eld_limit_formats(substream->runtime,
602                                 port->eld.eld_buffer);
603         if (ret < 0)
604                 return ret;
605
606         return snd_pcm_hw_constraint_eld(substream->runtime,
607                                 port->eld.eld_buffer);
608 }
609
610 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
611                 struct snd_soc_dai *dai)
612 {
613         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
614         struct hdac_hdmi_dai_port_map *dai_map;
615         struct hdac_hdmi_pcm *pcm;
616
617         dai_map = &hdmi->dai_map[dai->id];
618
619         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
620
621         if (pcm) {
622                 mutex_lock(&pcm->lock);
623                 pcm->chmap_set = false;
624                 memset(pcm->chmap, 0, sizeof(pcm->chmap));
625                 pcm->channels = 0;
626                 mutex_unlock(&pcm->lock);
627         }
628
629         if (dai_map->port)
630                 dai_map->port = NULL;
631 }
632
633 static int
634 hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt)
635 {
636         unsigned int chans;
637         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
638         int err;
639
640         chans = get_wcaps(hdev, cvt->nid);
641         chans = get_wcaps_channels(chans);
642
643         cvt->params.channels_min = 2;
644
645         cvt->params.channels_max = chans;
646         if (chans > hdmi->chmap.channels_max)
647                 hdmi->chmap.channels_max = chans;
648
649         err = snd_hdac_query_supported_pcm(hdev, cvt->nid,
650                         &cvt->params.rates,
651                         &cvt->params.formats,
652                         &cvt->params.maxbps);
653         if (err < 0)
654                 dev_err(&hdev->dev,
655                         "Failed to query pcm params for nid %d: %d\n",
656                         cvt->nid, err);
657
658         return err;
659 }
660
661 static int hdac_hdmi_fill_widget_info(struct device *dev,
662                 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
663                 void *priv, const char *wname, const char *stream,
664                 struct snd_kcontrol_new *wc, int numkc,
665                 int (*event)(struct snd_soc_dapm_widget *,
666                 struct snd_kcontrol *, int), unsigned short event_flags)
667 {
668         w->id = id;
669         w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
670         if (!w->name)
671                 return -ENOMEM;
672
673         w->sname = stream;
674         w->reg = SND_SOC_NOPM;
675         w->shift = 0;
676         w->kcontrol_news = wc;
677         w->num_kcontrols = numkc;
678         w->priv = priv;
679         w->event = event;
680         w->event_flags = event_flags;
681
682         return 0;
683 }
684
685 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
686                 const char *sink, const char *control, const char *src,
687                 int (*handler)(struct snd_soc_dapm_widget *src,
688                         struct snd_soc_dapm_widget *sink))
689 {
690         route->sink = sink;
691         route->source = src;
692         route->control = control;
693         route->connected = handler;
694 }
695
696 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
697                                         struct hdac_hdmi_port *port)
698 {
699         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
700         struct hdac_hdmi_pcm *pcm = NULL;
701         struct hdac_hdmi_port *p;
702
703         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
704                 if (list_empty(&pcm->port_list))
705                         continue;
706
707                 list_for_each_entry(p, &pcm->port_list, head) {
708                         if (p->id == port->id && port->pin == p->pin)
709                                 return pcm;
710                 }
711         }
712
713         return NULL;
714 }
715
716 static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
717                              hda_nid_t nid, unsigned int pwr_state)
718 {
719         int count;
720         unsigned int state;
721
722         if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
723                 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
724                         for (count = 0; count < 10; count++) {
725                                 snd_hdac_codec_read(hdev, nid, 0,
726                                                 AC_VERB_SET_POWER_STATE,
727                                                 pwr_state);
728                                 state = snd_hdac_sync_power_state(hdev,
729                                                 nid, pwr_state);
730                                 if (!(state & AC_PWRST_ERROR))
731                                         break;
732                         }
733                 }
734         }
735 }
736
737 static void hdac_hdmi_set_amp(struct hdac_device *hdev,
738                                    hda_nid_t nid, int val)
739 {
740         if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
741                 snd_hdac_codec_write(hdev, nid, 0,
742                                         AC_VERB_SET_AMP_GAIN_MUTE, val);
743 }
744
745
746 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
747                                         struct snd_kcontrol *kc, int event)
748 {
749         struct hdac_hdmi_port *port = w->priv;
750         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
751         struct hdac_hdmi_pcm *pcm;
752
753         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
754                         __func__, w->name, event);
755
756         pcm = hdac_hdmi_get_pcm(hdev, port);
757         if (!pcm)
758                 return -EIO;
759
760         /* set the device if pin is mst_capable */
761         if (hdac_hdmi_port_select_set(hdev, port) < 0)
762                 return -EIO;
763
764         switch (event) {
765         case SND_SOC_DAPM_PRE_PMU:
766                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
767
768                 /* Enable out path for this pin widget */
769                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
770                                 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
771
772                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
773
774                 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
775
776         case SND_SOC_DAPM_POST_PMD:
777                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
778
779                 /* Disable out path for this pin widget */
780                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
781                                 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
782
783                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
784                 break;
785
786         }
787
788         return 0;
789 }
790
791 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
792                                         struct snd_kcontrol *kc, int event)
793 {
794         struct hdac_hdmi_cvt *cvt = w->priv;
795         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
796         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
797         struct hdac_hdmi_pcm *pcm;
798
799         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
800                         __func__, w->name, event);
801
802         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
803         if (!pcm)
804                 return -EIO;
805
806         switch (event) {
807         case SND_SOC_DAPM_PRE_PMU:
808                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
809
810                 /* Enable transmission */
811                 snd_hdac_codec_write(hdev, cvt->nid, 0,
812                         AC_VERB_SET_DIGI_CONVERT_1, 1);
813
814                 /* Category Code (CC) to zero */
815                 snd_hdac_codec_write(hdev, cvt->nid, 0,
816                         AC_VERB_SET_DIGI_CONVERT_2, 0);
817
818                 snd_hdac_codec_write(hdev, cvt->nid, 0,
819                                 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
820                 snd_hdac_codec_write(hdev, cvt->nid, 0,
821                                 AC_VERB_SET_STREAM_FORMAT, pcm->format);
822                 break;
823
824         case SND_SOC_DAPM_POST_PMD:
825                 snd_hdac_codec_write(hdev, cvt->nid, 0,
826                                 AC_VERB_SET_CHANNEL_STREAMID, 0);
827                 snd_hdac_codec_write(hdev, cvt->nid, 0,
828                                 AC_VERB_SET_STREAM_FORMAT, 0);
829
830                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
831                 break;
832
833         }
834
835         return 0;
836 }
837
838 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
839                                         struct snd_kcontrol *kc, int event)
840 {
841         struct hdac_hdmi_port *port = w->priv;
842         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
843         int mux_idx;
844
845         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
846                         __func__, w->name, event);
847
848         if (!kc)
849                 kc  = w->kcontrols[0];
850
851         mux_idx = dapm_kcontrol_get_value(kc);
852
853         /* set the device if pin is mst_capable */
854         if (hdac_hdmi_port_select_set(hdev, port) < 0)
855                 return -EIO;
856
857         if (mux_idx > 0) {
858                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
859                         AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
860         }
861
862         return 0;
863 }
864
865 /*
866  * Based on user selection, map the PINs with the PCMs.
867  */
868 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
869                 struct snd_ctl_elem_value *ucontrol)
870 {
871         int ret;
872         struct hdac_hdmi_port *p, *p_next;
873         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
874         struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
875         struct snd_soc_dapm_context *dapm = w->dapm;
876         struct hdac_hdmi_port *port = w->priv;
877         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
878         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
879         struct hdac_hdmi_pcm *pcm = NULL;
880         const char *cvt_name =  e->texts[ucontrol->value.enumerated.item[0]];
881
882         ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
883         if (ret < 0)
884                 return ret;
885
886         if (port == NULL)
887                 return -EINVAL;
888
889         mutex_lock(&hdmi->pin_mutex);
890         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
891                 if (list_empty(&pcm->port_list))
892                         continue;
893
894                 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
895                         if (p == port && p->id == port->id &&
896                                         p->pin == port->pin) {
897                                 hdac_hdmi_jack_report(pcm, port, false);
898                                 list_del(&p->head);
899                         }
900                 }
901         }
902
903         /*
904          * Jack status is not reported during device probe as the
905          * PCMs are not registered by then. So report it here.
906          */
907         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
908                 if (!strcmp(cvt_name, pcm->cvt->name)) {
909                         list_add_tail(&port->head, &pcm->port_list);
910                         if (port->eld.monitor_present && port->eld.eld_valid) {
911                                 hdac_hdmi_jack_report(pcm, port, true);
912                                 mutex_unlock(&hdmi->pin_mutex);
913                                 return ret;
914                         }
915                 }
916         }
917         mutex_unlock(&hdmi->pin_mutex);
918
919         return ret;
920 }
921
922 /*
923  * Ideally the Mux inputs should be based on the num_muxs enumerated, but
924  * the display driver seem to be programming the connection list for the pin
925  * widget runtime.
926  *
927  * So programming all the possible inputs for the mux, the user has to take
928  * care of selecting the right one and leaving all other inputs selected to
929  * "NONE"
930  */
931 static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
932                                 struct hdac_hdmi_port *port,
933                                 struct snd_soc_dapm_widget *widget,
934                                 const char *widget_name)
935 {
936         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
937         struct hdac_hdmi_pin *pin = port->pin;
938         struct snd_kcontrol_new *kc;
939         struct hdac_hdmi_cvt *cvt;
940         struct soc_enum *se;
941         char kc_name[NAME_SIZE];
942         char mux_items[NAME_SIZE];
943         /* To hold inputs to the Pin mux */
944         char *items[HDA_MAX_CONNECTIONS];
945         int i = 0;
946         int num_items = hdmi->num_cvt + 1;
947
948         kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
949         if (!kc)
950                 return -ENOMEM;
951
952         se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
953         if (!se)
954                 return -ENOMEM;
955
956         snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
957                                                 pin->nid, port->id);
958         kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
959         if (!kc->name)
960                 return -ENOMEM;
961
962         kc->private_value = (long)se;
963         kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
964         kc->access = 0;
965         kc->info = snd_soc_info_enum_double;
966         kc->put = hdac_hdmi_set_pin_port_mux;
967         kc->get = snd_soc_dapm_get_enum_double;
968
969         se->reg = SND_SOC_NOPM;
970
971         /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
972         se->items = num_items;
973         se->mask = roundup_pow_of_two(se->items) - 1;
974
975         sprintf(mux_items, "NONE");
976         items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
977         if (!items[i])
978                 return -ENOMEM;
979
980         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
981                 i++;
982                 sprintf(mux_items, "cvt %d", cvt->nid);
983                 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
984                 if (!items[i])
985                         return -ENOMEM;
986         }
987
988         se->texts = devm_kmemdup(&hdev->dev, items,
989                         (num_items  * sizeof(char *)), GFP_KERNEL);
990         if (!se->texts)
991                 return -ENOMEM;
992
993         return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
994                         snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
995                         hdac_hdmi_pin_mux_widget_event,
996                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
997 }
998
999 /* Add cvt <- input <- mux route map */
1000 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
1001                         struct snd_soc_dapm_widget *widgets,
1002                         struct snd_soc_dapm_route *route, int rindex)
1003 {
1004         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1005         const struct snd_kcontrol_new *kc;
1006         struct soc_enum *se;
1007         int mux_index = hdmi->num_cvt + hdmi->num_ports;
1008         int i, j;
1009
1010         for (i = 0; i < hdmi->num_ports; i++) {
1011                 kc = widgets[mux_index].kcontrol_news;
1012                 se = (struct soc_enum *)kc->private_value;
1013                 for (j = 0; j < hdmi->num_cvt; j++) {
1014                         hdac_hdmi_fill_route(&route[rindex],
1015                                         widgets[mux_index].name,
1016                                         se->texts[j + 1],
1017                                         widgets[j].name, NULL);
1018
1019                         rindex++;
1020                 }
1021
1022                 mux_index++;
1023         }
1024 }
1025
1026 /*
1027  * Widgets are added in the below sequence
1028  *      Converter widgets for num converters enumerated
1029  *      Pin-port widgets for num ports for Pins enumerated
1030  *      Pin-port mux widgets to represent connenction list of pin widget
1031  *
1032  * For each port, one Mux and One output widget is added
1033  * Total widgets elements = num_cvt + (num_ports * 2);
1034  *
1035  * Routes are added as below:
1036  *      pin-port mux -> pin (based on num_ports)
1037  *      cvt -> "Input sel control" -> pin-port_mux
1038  *
1039  * Total route elements:
1040  *      num_ports + (pin_muxes * num_cvt)
1041  */
1042 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1043 {
1044         struct snd_soc_dapm_widget *widgets;
1045         struct snd_soc_dapm_route *route;
1046         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
1047         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1048         struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
1049         char widget_name[NAME_SIZE];
1050         struct hdac_hdmi_cvt *cvt;
1051         struct hdac_hdmi_pin *pin;
1052         int ret, i = 0, num_routes = 0, j;
1053
1054         if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1055                 return -EINVAL;
1056
1057         widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1058                                 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1059                                 GFP_KERNEL);
1060
1061         if (!widgets)
1062                 return -ENOMEM;
1063
1064         /* DAPM widgets to represent each converter widget */
1065         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1066                 sprintf(widget_name, "Converter %d", cvt->nid);
1067                 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1068                         snd_soc_dapm_aif_in, cvt,
1069                         widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1070                         hdac_hdmi_cvt_output_widget_event,
1071                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1072                 if (ret < 0)
1073                         return ret;
1074                 i++;
1075         }
1076
1077         list_for_each_entry(pin, &hdmi->pin_list, head) {
1078                 for (j = 0; j < pin->num_ports; j++) {
1079                         sprintf(widget_name, "hif%d-%d Output",
1080                                 pin->nid, pin->ports[j].id);
1081                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1082                                         snd_soc_dapm_output, &pin->ports[j],
1083                                         widget_name, NULL, NULL, 0,
1084                                         hdac_hdmi_pin_output_widget_event,
1085                                         SND_SOC_DAPM_PRE_PMU |
1086                                         SND_SOC_DAPM_POST_PMD);
1087                         if (ret < 0)
1088                                 return ret;
1089                         pin->ports[j].output_pin = widgets[i].name;
1090                         i++;
1091                 }
1092         }
1093
1094         /* DAPM widgets to represent the connection list to pin widget */
1095         list_for_each_entry(pin, &hdmi->pin_list, head) {
1096                 for (j = 0; j < pin->num_ports; j++) {
1097                         sprintf(widget_name, "Pin%d-Port%d Mux",
1098                                 pin->nid, pin->ports[j].id);
1099                         ret = hdac_hdmi_create_pin_port_muxs(hdev,
1100                                                 &pin->ports[j], &widgets[i],
1101                                                 widget_name);
1102                         if (ret < 0)
1103                                 return ret;
1104                         i++;
1105
1106                         /* For cvt to pin_mux mapping */
1107                         num_routes += hdmi->num_cvt;
1108
1109                         /* For pin_mux to pin mapping */
1110                         num_routes++;
1111                 }
1112         }
1113
1114         route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1115                                                         GFP_KERNEL);
1116         if (!route)
1117                 return -ENOMEM;
1118
1119         i = 0;
1120         /* Add pin <- NULL <- mux route map */
1121         list_for_each_entry(pin, &hdmi->pin_list, head) {
1122                 for (j = 0; j < pin->num_ports; j++) {
1123                         int sink_index = i + hdmi->num_cvt;
1124                         int src_index = sink_index + pin->num_ports *
1125                                                 hdmi->num_pin;
1126
1127                         hdac_hdmi_fill_route(&route[i],
1128                                 widgets[sink_index].name, NULL,
1129                                 widgets[src_index].name, NULL);
1130                         i++;
1131                 }
1132         }
1133
1134         hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
1135
1136         snd_soc_dapm_new_controls(dapm, widgets,
1137                 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1138
1139         snd_soc_dapm_add_routes(dapm, route, num_routes);
1140         snd_soc_dapm_new_widgets(dapm->card);
1141
1142         return 0;
1143
1144 }
1145
1146 static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
1147 {
1148         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1149         struct hdac_hdmi_dai_port_map *dai_map;
1150         struct hdac_hdmi_cvt *cvt;
1151         int dai_id = 0;
1152
1153         if (list_empty(&hdmi->cvt_list))
1154                 return -EINVAL;
1155
1156         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1157                 dai_map = &hdmi->dai_map[dai_id];
1158                 dai_map->dai_id = dai_id;
1159                 dai_map->cvt = cvt;
1160
1161                 dai_id++;
1162
1163                 if (dai_id == HDA_MAX_CVTS) {
1164                         dev_warn(&hdev->dev,
1165                                 "Max dais supported: %d\n", dai_id);
1166                         break;
1167                 }
1168         }
1169
1170         return 0;
1171 }
1172
1173 static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
1174 {
1175         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1176         struct hdac_hdmi_cvt *cvt;
1177         char name[NAME_SIZE];
1178
1179         cvt = kzalloc(sizeof(*cvt), GFP_KERNEL);
1180         if (!cvt)
1181                 return -ENOMEM;
1182
1183         cvt->nid = nid;
1184         sprintf(name, "cvt %d", cvt->nid);
1185         cvt->name = kstrdup(name, GFP_KERNEL);
1186
1187         list_add_tail(&cvt->head, &hdmi->cvt_list);
1188         hdmi->num_cvt++;
1189
1190         return hdac_hdmi_query_cvt_params(hdev, cvt);
1191 }
1192
1193 static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
1194                         struct hdac_hdmi_port *port)
1195 {
1196         unsigned int ver, mnl;
1197
1198         ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1199                                                 >> DRM_ELD_VER_SHIFT;
1200
1201         if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1202                 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
1203                 return -EINVAL;
1204         }
1205
1206         mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1207                 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1208
1209         if (mnl > ELD_MAX_MNL) {
1210                 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
1211                 return -EINVAL;
1212         }
1213
1214         port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1215
1216         return 0;
1217 }
1218
1219 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1220                                     struct hdac_hdmi_port *port)
1221 {
1222         struct hdac_device *hdev = pin->hdev;
1223         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1224         struct hdac_hdmi_pcm *pcm;
1225         int size = 0;
1226         int port_id = -1;
1227
1228         if (!hdmi)
1229                 return;
1230
1231         /*
1232          * In case of non MST pin, get_eld info API expectes port
1233          * to be -1.
1234          */
1235         mutex_lock(&hdmi->pin_mutex);
1236         port->eld.monitor_present = false;
1237
1238         if (pin->mst_capable)
1239                 port_id = port->id;
1240
1241         size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1242                                 &port->eld.monitor_present,
1243                                 port->eld.eld_buffer,
1244                                 ELD_MAX_SIZE);
1245
1246         if (size > 0) {
1247                 size = min(size, ELD_MAX_SIZE);
1248                 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1249                         size = -EINVAL;
1250         }
1251
1252         if (size > 0) {
1253                 port->eld.eld_valid = true;
1254                 port->eld.eld_size = size;
1255         } else {
1256                 port->eld.eld_valid = false;
1257                 port->eld.eld_size = 0;
1258         }
1259
1260         pcm = hdac_hdmi_get_pcm(hdev, port);
1261
1262         if (!port->eld.monitor_present || !port->eld.eld_valid) {
1263
1264                 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1265                                                 __func__, pin->nid, port->id);
1266
1267                 /*
1268                  * PCMs are not registered during device probe, so don't
1269                  * report jack here. It will be done in usermode mux
1270                  * control select.
1271                  */
1272                 if (pcm)
1273                         hdac_hdmi_jack_report(pcm, port, false);
1274
1275                 mutex_unlock(&hdmi->pin_mutex);
1276                 return;
1277         }
1278
1279         if (port->eld.monitor_present && port->eld.eld_valid) {
1280                 if (pcm)
1281                         hdac_hdmi_jack_report(pcm, port, true);
1282
1283                 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1284                           port->eld.eld_buffer, port->eld.eld_size, false);
1285
1286         }
1287         mutex_unlock(&hdmi->pin_mutex);
1288 }
1289
1290 static int hdac_hdmi_add_ports(struct hdac_hdmi_priv *hdmi,
1291                                 struct hdac_hdmi_pin *pin)
1292 {
1293         struct hdac_hdmi_port *ports;
1294         int max_ports = HDA_MAX_PORTS;
1295         int i;
1296
1297         /*
1298          * FIXME: max_port may vary for each platform, so pass this as
1299          * as driver data or query from i915 interface when this API is
1300          * implemented.
1301          */
1302
1303         ports = kcalloc(max_ports, sizeof(*ports), GFP_KERNEL);
1304         if (!ports)
1305                 return -ENOMEM;
1306
1307         for (i = 0; i < max_ports; i++) {
1308                 ports[i].id = i;
1309                 ports[i].pin = pin;
1310         }
1311         pin->ports = ports;
1312         pin->num_ports = max_ports;
1313         return 0;
1314 }
1315
1316 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1317 {
1318         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1319         struct hdac_hdmi_pin *pin;
1320         int ret;
1321
1322         pin = kzalloc(sizeof(*pin), GFP_KERNEL);
1323         if (!pin)
1324                 return -ENOMEM;
1325
1326         pin->nid = nid;
1327         pin->mst_capable = false;
1328         pin->hdev = hdev;
1329         ret = hdac_hdmi_add_ports(hdmi, pin);
1330         if (ret < 0)
1331                 return ret;
1332
1333         list_add_tail(&pin->head, &hdmi->pin_list);
1334         hdmi->num_pin++;
1335         hdmi->num_ports += pin->num_ports;
1336
1337         return 0;
1338 }
1339
1340 #define INTEL_VENDOR_NID_0x2 0x02
1341 #define INTEL_VENDOR_NID_0x8 0x08
1342 #define INTEL_VENDOR_NID_0xb 0x0b
1343 #define INTEL_GET_VENDOR_VERB 0xf81
1344 #define INTEL_SET_VENDOR_VERB 0x781
1345 #define INTEL_EN_DP12           0x02 /* enable DP 1.2 features */
1346 #define INTEL_EN_ALL_PIN_CVTS   0x01 /* enable 2nd & 3rd pins and convertors */
1347
1348 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1349 {
1350         unsigned int vendor_param;
1351         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1352         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1353
1354         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1355                                 INTEL_GET_VENDOR_VERB, 0);
1356         if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1357                 return;
1358
1359         vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1360         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1361                                 INTEL_SET_VENDOR_VERB, vendor_param);
1362         if (vendor_param == -1)
1363                 return;
1364 }
1365
1366 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1367 {
1368         unsigned int vendor_param;
1369         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1370         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1371
1372         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1373                                 INTEL_GET_VENDOR_VERB, 0);
1374         if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1375                 return;
1376
1377         /* enable DP1.2 mode */
1378         vendor_param |= INTEL_EN_DP12;
1379         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1380                                 INTEL_SET_VENDOR_VERB, vendor_param);
1381         if (vendor_param == -1)
1382                 return;
1383
1384 }
1385
1386 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1387         .startup = hdac_hdmi_pcm_open,
1388         .shutdown = hdac_hdmi_pcm_close,
1389         .hw_params = hdac_hdmi_set_hw_params,
1390         .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1391 };
1392
1393 /*
1394  * Each converter can support a stream independently. So a dai is created
1395  * based on the number of converter queried.
1396  */
1397 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1398                 struct snd_soc_dai_driver **dais,
1399                 struct hdac_hdmi_priv *hdmi, int num_dais)
1400 {
1401         struct snd_soc_dai_driver *hdmi_dais;
1402         struct hdac_hdmi_cvt *cvt;
1403         char name[NAME_SIZE], dai_name[NAME_SIZE];
1404         int i = 0;
1405         u32 rates, bps;
1406         unsigned int rate_max = 384000, rate_min = 8000;
1407         u64 formats;
1408         int ret;
1409
1410         hdmi_dais = devm_kzalloc(&hdev->dev,
1411                         (sizeof(*hdmi_dais) * num_dais),
1412                         GFP_KERNEL);
1413         if (!hdmi_dais)
1414                 return -ENOMEM;
1415
1416         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1417                 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1418                                         &rates, &formats, &bps);
1419                 if (ret)
1420                         return ret;
1421
1422                 /* Filter out 44.1, 88.2 and 176.4Khz */
1423                 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1424                            SNDRV_PCM_RATE_176400);
1425                 if (!rates)
1426                         return -EINVAL;
1427
1428                 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1429                 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1430                                         dai_name, GFP_KERNEL);
1431
1432                 if (!hdmi_dais[i].name)
1433                         return -ENOMEM;
1434
1435                 snprintf(name, sizeof(name), "hifi%d", i+1);
1436                 hdmi_dais[i].playback.stream_name =
1437                                 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1438                 if (!hdmi_dais[i].playback.stream_name)
1439                         return -ENOMEM;
1440
1441                 /*
1442                  * Set caps based on capability queried from the converter.
1443                  * It will be constrained runtime based on ELD queried.
1444                  */
1445                 hdmi_dais[i].playback.formats = formats;
1446                 hdmi_dais[i].playback.rates = rates;
1447                 hdmi_dais[i].playback.rate_max = rate_max;
1448                 hdmi_dais[i].playback.rate_min = rate_min;
1449                 hdmi_dais[i].playback.channels_min = 2;
1450                 hdmi_dais[i].playback.channels_max = 2;
1451                 hdmi_dais[i].playback.sig_bits = bps;
1452                 hdmi_dais[i].ops = &hdmi_dai_ops;
1453                 i++;
1454         }
1455
1456         *dais = hdmi_dais;
1457         hdmi->dai_drv = hdmi_dais;
1458
1459         return 0;
1460 }
1461
1462 /*
1463  * Parse all nodes and store the cvt/pin nids in array
1464  * Add one time initialization for pin and cvt widgets
1465  */
1466 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1467                 struct snd_soc_dai_driver **dais, int *num_dais)
1468 {
1469         hda_nid_t nid;
1470         int i, num_nodes;
1471         struct hdac_hdmi_cvt *temp_cvt, *cvt_next;
1472         struct hdac_hdmi_pin *temp_pin, *pin_next;
1473         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1474         int ret;
1475
1476         hdac_hdmi_skl_enable_all_pins(hdev);
1477         hdac_hdmi_skl_enable_dp12(hdev);
1478
1479         num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1480         if (!nid || num_nodes <= 0) {
1481                 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1482                 return -EINVAL;
1483         }
1484
1485         for (i = 0; i < num_nodes; i++, nid++) {
1486                 unsigned int caps;
1487                 unsigned int type;
1488
1489                 caps = get_wcaps(hdev, nid);
1490                 type = get_wcaps_type(caps);
1491
1492                 if (!(caps & AC_WCAP_DIGITAL))
1493                         continue;
1494
1495                 switch (type) {
1496
1497                 case AC_WID_AUD_OUT:
1498                         ret = hdac_hdmi_add_cvt(hdev, nid);
1499                         if (ret < 0)
1500                                 goto free_widgets;
1501                         break;
1502
1503                 case AC_WID_PIN:
1504                         ret = hdac_hdmi_add_pin(hdev, nid);
1505                         if (ret < 0)
1506                                 goto free_widgets;
1507                         break;
1508                 }
1509         }
1510
1511         if (!hdmi->num_pin || !hdmi->num_cvt) {
1512                 ret = -EIO;
1513                 goto free_widgets;
1514         }
1515
1516         ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1517         if (ret) {
1518                 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1519                                                         ret);
1520                 goto free_widgets;
1521         }
1522
1523         *num_dais = hdmi->num_cvt;
1524         ret = hdac_hdmi_init_dai_map(hdev);
1525         if (ret < 0)
1526                 goto free_widgets;
1527
1528         return ret;
1529
1530 free_widgets:
1531         list_for_each_entry_safe(temp_cvt, cvt_next, &hdmi->cvt_list, head) {
1532                 list_del(&temp_cvt->head);
1533                 kfree(temp_cvt->name);
1534                 kfree(temp_cvt);
1535         }
1536
1537         list_for_each_entry_safe(temp_pin, pin_next, &hdmi->pin_list, head) {
1538                 for (i = 0; i < temp_pin->num_ports; i++)
1539                         temp_pin->ports[i].pin = NULL;
1540                 kfree(temp_pin->ports);
1541                 list_del(&temp_pin->head);
1542                 kfree(temp_pin);
1543         }
1544
1545         return ret;
1546 }
1547
1548 static int hdac_hdmi_pin2port(void *aptr, int pin)
1549 {
1550         struct hdac_device *hdev = aptr;
1551         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1552         const int *map = hdmi->drv_data->port_map;
1553         int i;
1554
1555         if (!hdmi->drv_data->port_num)
1556                 return pin - 4; /* map NID 0x05 -> port #1 */
1557
1558         /*
1559          * looking for the pin number in the mapping table and return
1560          * the index which indicate the port number
1561          */
1562         for (i = 0; i < hdmi->drv_data->port_num; i++) {
1563                 if (pin == map[i])
1564                         return i + 1;
1565         }
1566
1567         /* return -1 if pin number exceeds our expectation */
1568         dev_err(&hdev->dev, "Can't find the port for pin %d\n", pin);
1569         return -1;
1570 }
1571
1572 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1573 {
1574         struct hdac_device *hdev = aptr;
1575         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1576         struct hdac_hdmi_pin *pin = NULL;
1577         struct hdac_hdmi_port *hport = NULL;
1578         struct snd_soc_component *component = hdmi->component;
1579         int i;
1580         hda_nid_t pin_nid;
1581
1582         if (!hdmi->drv_data->port_num) {
1583                 /* for legacy platforms */
1584                 pin_nid = port + 0x04;
1585         } else if (port < hdmi->drv_data->port_num) {
1586                 /* get pin number from the pin2port mapping table */
1587                 pin_nid = hdmi->drv_data->port_map[port - 1];
1588         } else {
1589                 dev_err(&hdev->dev, "Can't find the pin for port %d\n", port);
1590                 return;
1591         }
1592
1593         dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1594                                                         pin_nid, pipe);
1595
1596         /*
1597          * skip notification during system suspend (but not in runtime PM);
1598          * the state will be updated at resume. Also since the ELD and
1599          * connection states are updated in anyway at the end of the resume,
1600          * we can skip it when received during PM process.
1601          */
1602         if (snd_power_get_state(component->card->snd_card) !=
1603                         SNDRV_CTL_POWER_D0)
1604                 return;
1605
1606         if (atomic_read(&hdev->in_pm))
1607                 return;
1608
1609         list_for_each_entry(pin, &hdmi->pin_list, head) {
1610                 if (pin->nid != pin_nid)
1611                         continue;
1612
1613                 /* In case of non MST pin, pipe is -1 */
1614                 if (pipe == -1) {
1615                         pin->mst_capable = false;
1616                         /* if not MST, default is port[0] */
1617                         hport = &pin->ports[0];
1618                 } else {
1619                         for (i = 0; i < pin->num_ports; i++) {
1620                                 pin->mst_capable = true;
1621                                 if (pin->ports[i].id == pipe) {
1622                                         hport = &pin->ports[i];
1623                                         break;
1624                                 }
1625                         }
1626                 }
1627
1628                 if (hport)
1629                         hdac_hdmi_present_sense(pin, hport);
1630         }
1631
1632 }
1633
1634 static struct drm_audio_component_audio_ops aops = {
1635         .pin2port       = hdac_hdmi_pin2port,
1636         .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1637 };
1638
1639 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1640                                                 int device)
1641 {
1642         struct snd_soc_pcm_runtime *rtd;
1643
1644         for_each_card_rtds(card, rtd) {
1645                 if (rtd->pcm && (rtd->pcm->device == device))
1646                         return rtd->pcm;
1647         }
1648
1649         return NULL;
1650 }
1651
1652 /* create jack pin kcontrols */
1653 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1654                                     struct hdac_device *hdev)
1655 {
1656         struct hdac_hdmi_pin *pin;
1657         struct snd_kcontrol_new *kc;
1658         char kc_name[NAME_SIZE], xname[NAME_SIZE];
1659         char *name;
1660         int i = 0, j;
1661         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1662         struct snd_soc_component *component = hdmi->component;
1663
1664         kc = devm_kcalloc(component->dev, hdmi->num_ports,
1665                                 sizeof(*kc), GFP_KERNEL);
1666
1667         if (!kc)
1668                 return -ENOMEM;
1669
1670         list_for_each_entry(pin, &hdmi->pin_list, head) {
1671                 for (j = 0; j < pin->num_ports; j++) {
1672                         snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1673                                                 pin->nid, pin->ports[j].id);
1674                         name = devm_kstrdup(component->dev, xname, GFP_KERNEL);
1675                         if (!name)
1676                                 return -ENOMEM;
1677                         snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1678                         kc[i].name = devm_kstrdup(component->dev, kc_name,
1679                                                         GFP_KERNEL);
1680                         if (!kc[i].name)
1681                                 return -ENOMEM;
1682
1683                         kc[i].private_value = (unsigned long)name;
1684                         kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1685                         kc[i].access = 0;
1686                         kc[i].info = snd_soc_dapm_info_pin_switch;
1687                         kc[i].put = snd_soc_dapm_put_pin_switch;
1688                         kc[i].get = snd_soc_dapm_get_pin_switch;
1689                         i++;
1690                 }
1691         }
1692
1693         return snd_soc_add_card_controls(card, kc, i);
1694 }
1695
1696 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1697                         struct snd_soc_dapm_context *dapm)
1698 {
1699         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1700         struct hdac_device *hdev = hdmi->hdev;
1701         struct hdac_hdmi_pin *pin;
1702         struct snd_soc_dapm_widget *widgets;
1703         struct snd_soc_dapm_route *route;
1704         char w_name[NAME_SIZE];
1705         int i = 0, j, ret;
1706
1707         widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1708                                 sizeof(*widgets), GFP_KERNEL);
1709
1710         if (!widgets)
1711                 return -ENOMEM;
1712
1713         route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1714                                 sizeof(*route), GFP_KERNEL);
1715         if (!route)
1716                 return -ENOMEM;
1717
1718         /* create Jack DAPM widget */
1719         list_for_each_entry(pin, &hdmi->pin_list, head) {
1720                 for (j = 0; j < pin->num_ports; j++) {
1721                         snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1722                                                 pin->nid, pin->ports[j].id);
1723
1724                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1725                                         snd_soc_dapm_spk, NULL,
1726                                         w_name, NULL, NULL, 0, NULL, 0);
1727                         if (ret < 0)
1728                                 return ret;
1729
1730                         pin->ports[j].jack_pin = widgets[i].name;
1731                         pin->ports[j].dapm = dapm;
1732
1733                         /* add to route from Jack widget to output */
1734                         hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1735                                         NULL, pin->ports[j].output_pin, NULL);
1736
1737                         i++;
1738                 }
1739         }
1740
1741         /* Add Route from Jack widget to the output widget */
1742         ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1743         if (ret < 0)
1744                 return ret;
1745
1746         ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1747         if (ret < 0)
1748                 return ret;
1749
1750         ret = snd_soc_dapm_new_widgets(dapm->card);
1751         if (ret < 0)
1752                 return ret;
1753
1754         /* Add Jack Pin switch Kcontrol */
1755         ret = create_fill_jack_kcontrols(dapm->card, hdev);
1756
1757         if (ret < 0)
1758                 return ret;
1759
1760         /* default set the Jack Pin switch to OFF */
1761         list_for_each_entry(pin, &hdmi->pin_list, head) {
1762                 for (j = 0; j < pin->num_ports; j++)
1763                         snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1764                                                 pin->ports[j].jack_pin);
1765         }
1766
1767         return 0;
1768 }
1769 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1770
1771 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1772                                 struct snd_soc_jack *jack)
1773 {
1774         struct snd_soc_component *component = dai->component;
1775         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1776         struct hdac_device *hdev = hdmi->hdev;
1777         struct hdac_hdmi_pcm *pcm;
1778         struct snd_pcm *snd_pcm;
1779         int err;
1780
1781         /*
1782          * this is a new PCM device, create new pcm and
1783          * add to the pcm list
1784          */
1785         pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
1786         if (!pcm)
1787                 return -ENOMEM;
1788         pcm->pcm_id = device;
1789         pcm->cvt = hdmi->dai_map[dai->id].cvt;
1790         pcm->jack_event = 0;
1791         pcm->jack = jack;
1792         mutex_init(&pcm->lock);
1793         INIT_LIST_HEAD(&pcm->port_list);
1794         snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1795         if (snd_pcm) {
1796                 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1797                 if (err < 0) {
1798                         dev_err(&hdev->dev,
1799                                 "chmap control add failed with err: %d for pcm: %d\n",
1800                                 err, device);
1801                         kfree(pcm);
1802                         return err;
1803                 }
1804         }
1805
1806         list_add_tail(&pcm->head, &hdmi->pcm_list);
1807
1808         return 0;
1809 }
1810 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1811
1812 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1813                         struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1814 {
1815         int i;
1816         struct hdac_hdmi_pin *pin;
1817
1818         list_for_each_entry(pin, &hdmi->pin_list, head) {
1819                 if (detect_pin_caps) {
1820
1821                         if (hdac_hdmi_get_port_len(hdev, pin->nid)  == 0)
1822                                 pin->mst_capable = false;
1823                         else
1824                                 pin->mst_capable = true;
1825                 }
1826
1827                 for (i = 0; i < pin->num_ports; i++) {
1828                         if (!pin->mst_capable && i > 0)
1829                                 continue;
1830
1831                         hdac_hdmi_present_sense(pin, &pin->ports[i]);
1832                 }
1833         }
1834 }
1835
1836 static int hdmi_codec_probe(struct snd_soc_component *component)
1837 {
1838         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1839         struct hdac_device *hdev = hdmi->hdev;
1840         struct snd_soc_dapm_context *dapm =
1841                 snd_soc_component_get_dapm(component);
1842         struct hdac_ext_link *hlink = NULL;
1843         int ret;
1844
1845         hdmi->component = component;
1846
1847         /*
1848          * hold the ref while we probe, also no need to drop the ref on
1849          * exit, we call pm_runtime_suspend() so that will do for us
1850          */
1851         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
1852         if (!hlink) {
1853                 dev_err(&hdev->dev, "hdac link not found\n");
1854                 return -EIO;
1855         }
1856
1857         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1858
1859         ret = create_fill_widget_route_map(dapm);
1860         if (ret < 0)
1861                 return ret;
1862
1863         aops.audio_ptr = hdev;
1864         ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1865         if (ret < 0) {
1866                 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1867                 return ret;
1868         }
1869
1870         hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1871         /* Imp: Store the card pointer in hda_codec */
1872         hdmi->card = dapm->card->snd_card;
1873
1874         /*
1875          * hdac_device core already sets the state to active and calls
1876          * get_noresume. So enable runtime and set the device to suspend.
1877          */
1878         pm_runtime_enable(&hdev->dev);
1879         pm_runtime_put(&hdev->dev);
1880         pm_runtime_suspend(&hdev->dev);
1881
1882         return 0;
1883 }
1884
1885 static void hdmi_codec_remove(struct snd_soc_component *component)
1886 {
1887         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1888         struct hdac_device *hdev = hdmi->hdev;
1889
1890         pm_runtime_disable(&hdev->dev);
1891 }
1892
1893 #ifdef CONFIG_PM_SLEEP
1894 static int hdmi_codec_resume(struct device *dev)
1895 {
1896         struct hdac_device *hdev = dev_to_hdac_dev(dev);
1897         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1898         int ret;
1899
1900         ret = pm_runtime_force_resume(dev);
1901         if (ret < 0)
1902                 return ret;
1903         /*
1904          * As the ELD notify callback request is not entertained while the
1905          * device is in suspend state. Need to manually check detection of
1906          * all pins here. pin capablity change is not support, so use the
1907          * already set pin caps.
1908          *
1909          * NOTE: this is safe to call even if the codec doesn't actually resume.
1910          * The pin check involves only with DRM audio component hooks, so it
1911          * works even if the HD-audio side is still dreaming peacefully.
1912          */
1913         hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
1914         return 0;
1915 }
1916 #else
1917 #define hdmi_codec_resume NULL
1918 #endif
1919
1920 static const struct snd_soc_component_driver hdmi_hda_codec = {
1921         .probe                  = hdmi_codec_probe,
1922         .remove                 = hdmi_codec_remove,
1923         .use_pmdown_time        = 1,
1924         .endianness             = 1,
1925         .non_legacy_dai_naming  = 1,
1926 };
1927
1928 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
1929                                         unsigned char *chmap)
1930 {
1931         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1932         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1933
1934         memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1935 }
1936
1937 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
1938                                 unsigned char *chmap, int prepared)
1939 {
1940         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1941         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1942         struct hdac_hdmi_port *port;
1943
1944         if (!pcm)
1945                 return;
1946
1947         if (list_empty(&pcm->port_list))
1948                 return;
1949
1950         mutex_lock(&pcm->lock);
1951         pcm->chmap_set = true;
1952         memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1953         list_for_each_entry(port, &pcm->port_list, head)
1954                 if (prepared)
1955                         hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
1956         mutex_unlock(&pcm->lock);
1957 }
1958
1959 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
1960 {
1961         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1962         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1963
1964         if (!pcm)
1965                 return false;
1966
1967         if (list_empty(&pcm->port_list))
1968                 return false;
1969
1970         return true;
1971 }
1972
1973 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
1974 {
1975         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1976         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1977         struct hdac_hdmi_port *port;
1978
1979         if (!pcm)
1980                 return 0;
1981
1982         if (list_empty(&pcm->port_list))
1983                 return 0;
1984
1985         port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
1986
1987         if (!port || !port->eld.eld_valid)
1988                 return 0;
1989
1990         return port->eld.info.spk_alloc;
1991 }
1992
1993 static struct hdac_hdmi_drv_data intel_icl_drv_data  = {
1994         .vendor_nid = INTEL_VENDOR_NID_0x2,
1995         .port_map = icl_pin2port_map,
1996         .port_num = ARRAY_SIZE(icl_pin2port_map),
1997 };
1998
1999 static struct hdac_hdmi_drv_data intel_glk_drv_data  = {
2000         .vendor_nid = INTEL_VENDOR_NID_0xb,
2001 };
2002
2003 static struct hdac_hdmi_drv_data intel_drv_data  = {
2004         .vendor_nid = INTEL_VENDOR_NID_0x8,
2005 };
2006
2007 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
2008 {
2009         struct hdac_hdmi_priv *hdmi_priv = NULL;
2010         struct snd_soc_dai_driver *hdmi_dais = NULL;
2011         struct hdac_ext_link *hlink = NULL;
2012         int num_dais = 0;
2013         int ret = 0;
2014         struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
2015         const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
2016
2017         /* hold the ref while we probe */
2018         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
2019         if (!hlink) {
2020                 dev_err(&hdev->dev, "hdac link not found\n");
2021                 return -EIO;
2022         }
2023
2024         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2025
2026         hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2027         if (hdmi_priv == NULL)
2028                 return -ENOMEM;
2029
2030         snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2031         hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2032         hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2033         hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2034         hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2035         hdmi_priv->hdev = hdev;
2036
2037         if (!hdac_id)
2038                 return -ENODEV;
2039
2040         if (hdac_id->driver_data)
2041                 hdmi_priv->drv_data =
2042                         (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2043         else
2044                 hdmi_priv->drv_data = &intel_drv_data;
2045
2046         dev_set_drvdata(&hdev->dev, hdmi_priv);
2047
2048         INIT_LIST_HEAD(&hdmi_priv->pin_list);
2049         INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2050         INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2051         mutex_init(&hdmi_priv->pin_mutex);
2052
2053         /*
2054          * Turned off in the runtime_suspend during the first explicit
2055          * pm_runtime_suspend call.
2056          */
2057         snd_hdac_display_power(hdev->bus, hdev->addr, true);
2058
2059         ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2060         if (ret < 0) {
2061                 dev_err(&hdev->dev,
2062                         "Failed in parse and map nid with err: %d\n", ret);
2063                 return ret;
2064         }
2065         snd_hdac_refresh_widgets(hdev, true);
2066
2067         /* ASoC specific initialization */
2068         ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2069                                         hdmi_dais, num_dais);
2070
2071         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2072
2073         return ret;
2074 }
2075
2076 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2077 {
2078         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2079         struct hdac_hdmi_pin *pin, *pin_next;
2080         struct hdac_hdmi_cvt *cvt, *cvt_next;
2081         struct hdac_hdmi_pcm *pcm, *pcm_next;
2082         struct hdac_hdmi_port *port, *port_next;
2083         int i;
2084
2085         snd_hdac_display_power(hdev->bus, hdev->addr, false);
2086
2087         list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) {
2088                 pcm->cvt = NULL;
2089                 if (list_empty(&pcm->port_list))
2090                         continue;
2091
2092                 list_for_each_entry_safe(port, port_next,
2093                                         &pcm->port_list, head)
2094                         list_del(&port->head);
2095
2096                 list_del(&pcm->head);
2097                 kfree(pcm);
2098         }
2099
2100         list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) {
2101                 list_del(&cvt->head);
2102                 kfree(cvt->name);
2103                 kfree(cvt);
2104         }
2105
2106         list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) {
2107                 for (i = 0; i < pin->num_ports; i++)
2108                         pin->ports[i].pin = NULL;
2109                 kfree(pin->ports);
2110                 list_del(&pin->head);
2111                 kfree(pin);
2112         }
2113
2114         return 0;
2115 }
2116
2117 #ifdef CONFIG_PM
2118 static int hdac_hdmi_runtime_suspend(struct device *dev)
2119 {
2120         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2121         struct hdac_bus *bus = hdev->bus;
2122         struct hdac_ext_link *hlink = NULL;
2123
2124         dev_dbg(dev, "Enter: %s\n", __func__);
2125
2126         /* controller may not have been initialized for the first time */
2127         if (!bus)
2128                 return 0;
2129
2130         /*
2131          * Power down afg.
2132          * codec_read is preferred over codec_write to set the power state.
2133          * This way verb is send to set the power state and response
2134          * is received. So setting power state is ensured without using loop
2135          * to read the state.
2136          */
2137         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2138                                                         AC_PWRST_D3);
2139
2140         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2141         if (!hlink) {
2142                 dev_err(dev, "hdac link not found\n");
2143                 return -EIO;
2144         }
2145
2146         snd_hdac_ext_bus_link_put(bus, hlink);
2147
2148         snd_hdac_display_power(bus, hdev->addr, false);
2149
2150         return 0;
2151 }
2152
2153 static int hdac_hdmi_runtime_resume(struct device *dev)
2154 {
2155         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2156         struct hdac_bus *bus = hdev->bus;
2157         struct hdac_ext_link *hlink = NULL;
2158
2159         dev_dbg(dev, "Enter: %s\n", __func__);
2160
2161         /* controller may not have been initialized for the first time */
2162         if (!bus)
2163                 return 0;
2164
2165         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2166         if (!hlink) {
2167                 dev_err(dev, "hdac link not found\n");
2168                 return -EIO;
2169         }
2170
2171         snd_hdac_ext_bus_link_get(bus, hlink);
2172
2173         snd_hdac_display_power(bus, hdev->addr, true);
2174
2175         hdac_hdmi_skl_enable_all_pins(hdev);
2176         hdac_hdmi_skl_enable_dp12(hdev);
2177
2178         /* Power up afg */
2179         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2180                                                         AC_PWRST_D0);
2181
2182         return 0;
2183 }
2184 #else
2185 #define hdac_hdmi_runtime_suspend NULL
2186 #define hdac_hdmi_runtime_resume NULL
2187 #endif
2188
2189 static const struct dev_pm_ops hdac_hdmi_pm = {
2190         SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2191         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume)
2192 };
2193
2194 static const struct hda_device_id hdmi_list[] = {
2195         HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2196         HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2197         HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2198         HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2199                                                    &intel_glk_drv_data),
2200         HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2201                                                    &intel_glk_drv_data),
2202         HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
2203                                                    &intel_icl_drv_data),
2204         {}
2205 };
2206
2207 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2208
2209 static struct hdac_driver hdmi_driver = {
2210         .driver = {
2211                 .name   = "HDMI HDA Codec",
2212                 .pm = &hdac_hdmi_pm,
2213         },
2214         .id_table       = hdmi_list,
2215         .probe          = hdac_hdmi_dev_probe,
2216         .remove         = hdac_hdmi_dev_remove,
2217 };
2218
2219 static int __init hdmi_init(void)
2220 {
2221         return snd_hda_ext_driver_register(&hdmi_driver);
2222 }
2223
2224 static void __exit hdmi_exit(void)
2225 {
2226         snd_hda_ext_driver_unregister(&hdmi_driver);
2227 }
2228
2229 module_init(hdmi_init);
2230 module_exit(hdmi_exit);
2231
2232 MODULE_LICENSE("GPL v2");
2233 MODULE_DESCRIPTION("HDMI HD codec");
2234 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2235 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");