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_hdmi_dai_port_map *dai_map;
 459         struct hdac_hdmi_pcm *pcm;
 460         int format;
 461
 462         dai_map = &hdmi->dai_map[dai->id];
 463
 464         format = snd_hdac_calc_stream_format(params_rate(hparams),
 465                         params_channels(hparams), params_format(hparams),
 466                         dai->driver->playback.sig_bits, 0);
 467
 468         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 469         if (!pcm)
 470                 return -EIO;
 471
 472         pcm->format = format;
 473         pcm->channels = params_channels(hparams);
 474
 475         return 0;
 476 }
 477
 478 static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
 479                                         struct hdac_hdmi_pin *pin,
 480                                         struct hdac_hdmi_port *port)
 481 {
 482         if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
 483                 dev_warn(&hdev->dev,
 484                         "HDMI: pin %d wcaps %#x does not support connection list\n",
 485                         pin->nid, get_wcaps(hdev, pin->nid));
 486                 return -EINVAL;
 487         }
 488
 489         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 490                 return -EIO;
 491
 492         port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
 493                         port->mux_nids, HDA_MAX_CONNECTIONS);
 494         if (port->num_mux_nids == 0)
 495                 dev_warn(&hdev->dev,
 496                         "No connections found for pin:port %d:%d\n",
 497                                                 pin->nid, port->id);
 498
 499         dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
 500                         port->num_mux_nids, pin->nid, port->id);
 501
 502         return port->num_mux_nids;
 503 }
 504
 505 /*
 506  * Query pcm list and return port to which stream is routed.
 507  *
 508  * Also query connection list of the pin, to validate the cvt to port map.
 509  *
 510  * Same stream rendering to multiple ports simultaneously can be done
 511  * possibly, but not supported for now in driver. So return the first port
 512  * connected.
 513  */
 514 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
 515                         struct hdac_device *hdev,
 516                         struct hdac_hdmi_priv *hdmi,
 517                         struct hdac_hdmi_cvt *cvt)
 518 {
 519         struct hdac_hdmi_pcm *pcm;
 520         struct hdac_hdmi_port *port = NULL;
 521         int ret, i;
 522
 523         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 524                 if (pcm->cvt == cvt) {
 525                         if (list_empty(&pcm->port_list))
 526                                 continue;
 527
 528                         list_for_each_entry(port, &pcm->port_list, head) {
 529                                 mutex_lock(&pcm->lock);
 530                                 ret = hdac_hdmi_query_port_connlist(hdev,
 531                                                         port->pin, port);
 532                                 mutex_unlock(&pcm->lock);
 533                                 if (ret < 0)
 534                                         continue;
 535
 536                                 for (i = 0; i < port->num_mux_nids; i++) {
 537                                         if (port->mux_nids[i] == cvt->nid &&
 538                                                 port->eld.monitor_present &&
 539                                                 port->eld.eld_valid)
 540                                                 return port;
 541                                 }
 542                         }
 543                 }
 544         }
 545
 546         return NULL;
 547 }
 548
 549 /*
 550  * This tries to get a valid pin and set the HW constraints based on the
 551  * ELD. Even if a valid pin is not found return success so that device open
 552  * doesn't fail.
 553  */
 554 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
 555                         struct snd_soc_dai *dai)
 556 {
 557         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 558         struct hdac_device *hdev = hdmi->hdev;
 559         struct hdac_hdmi_dai_port_map *dai_map;
 560         struct hdac_hdmi_cvt *cvt;
 561         struct hdac_hdmi_port *port;
 562         int ret;
 563
 564         dai_map = &hdmi->dai_map[dai->id];
 565
 566         cvt = dai_map->cvt;
 567         port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
 568
 569         /*
 570          * To make PA and other userland happy.
 571          * userland scans devices so returning error does not help.
 572          */
 573         if (!port)
 574                 return 0;
 575         if ((!port->eld.monitor_present) ||
 576                         (!port->eld.eld_valid)) {
 577
 578                 dev_warn(&hdev->dev,
 579                         "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
 580                         port->eld.monitor_present, port->eld.eld_valid,
 581                         port->pin->nid, port->id);
 582
 583                 return 0;
 584         }
 585
 586         dai_map->port = port;
 587
 588         ret = hdac_hdmi_eld_limit_formats(substream->runtime,
 589                                 port->eld.eld_buffer);
 590         if (ret < 0)
 591                 return ret;
 592
 593         return snd_pcm_hw_constraint_eld(substream->runtime,
 594                                 port->eld.eld_buffer);
 595 }
 596
 597 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
 598                 struct snd_soc_dai *dai)
 599 {
 600         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 601         struct hdac_hdmi_dai_port_map *dai_map;
 602         struct hdac_hdmi_pcm *pcm;
 603
 604         dai_map = &hdmi->dai_map[dai->id];
 605
 606         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 607
 608         if (pcm) {
 609                 mutex_lock(&pcm->lock);
 610                 pcm->chmap_set = false;
 611                 memset(pcm->chmap, 0, sizeof(pcm->chmap));
 612                 pcm->channels = 0;
 613                 mutex_unlock(&pcm->lock);
 614         }
 615
 616         if (dai_map->port)
 617                 dai_map->port = NULL;
 618 }
 619
 620 static int
 621 hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt)
 622 {
 623         unsigned int chans;
 624         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 625         int err;
 626
 627         chans = get_wcaps(hdev, cvt->nid);
 628         chans = get_wcaps_channels(chans);
 629
 630         cvt->params.channels_min = 2;
 631
 632         cvt->params.channels_max = chans;
 633         if (chans > hdmi->chmap.channels_max)
 634                 hdmi->chmap.channels_max = chans;
 635
 636         err = snd_hdac_query_supported_pcm(hdev, cvt->nid,
 637                         &cvt->params.rates,
 638                         &cvt->params.formats,
 639                         &cvt->params.maxbps);
 640         if (err < 0)
 641                 dev_err(&hdev->dev,
 642                         "Failed to query pcm params for nid %d: %d\n",
 643                         cvt->nid, err);
 644
 645         return err;
 646 }
 647
 648 static int hdac_hdmi_fill_widget_info(struct device *dev,
 649                 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
 650                 void *priv, const char *wname, const char *stream,
 651                 struct snd_kcontrol_new *wc, int numkc,
 652                 int (*event)(struct snd_soc_dapm_widget *,
 653                 struct snd_kcontrol *, int), unsigned short event_flags)
 654 {
 655         w->id = id;
 656         w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
 657         if (!w->name)
 658                 return -ENOMEM;
 659
 660         w->sname = stream;
 661         w->reg = SND_SOC_NOPM;
 662         w->shift = 0;
 663         w->kcontrol_news = wc;
 664         w->num_kcontrols = numkc;
 665         w->priv = priv;
 666         w->event = event;
 667         w->event_flags = event_flags;
 668
 669         return 0;
 670 }
 671
 672 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
 673                 const char *sink, const char *control, const char *src,
 674                 int (*handler)(struct snd_soc_dapm_widget *src,
 675                         struct snd_soc_dapm_widget *sink))
 676 {
 677         route->sink = sink;
 678         route->source = src;
 679         route->control = control;
 680         route->connected = handler;
 681 }
 682
 683 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
 684                                         struct hdac_hdmi_port *port)
 685 {
 686         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 687         struct hdac_hdmi_pcm *pcm = NULL;
 688         struct hdac_hdmi_port *p;
 689
 690         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 691                 if (list_empty(&pcm->port_list))
 692                         continue;
 693
 694                 list_for_each_entry(p, &pcm->port_list, head) {
 695                         if (p->id == port->id && port->pin == p->pin)
 696                                 return pcm;
 697                 }
 698         }
 699
 700         return NULL;
 701 }
 702
 703 static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
 704                              hda_nid_t nid, unsigned int pwr_state)
 705 {
 706         int count;
 707         unsigned int state;
 708
 709         if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
 710                 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
 711                         for (count = 0; count < 10; count++) {
 712                                 snd_hdac_codec_read(hdev, nid, 0,
 713                                                 AC_VERB_SET_POWER_STATE,
 714                                                 pwr_state);
 715                                 state = snd_hdac_sync_power_state(hdev,
 716                                                 nid, pwr_state);
 717                                 if (!(state & AC_PWRST_ERROR))
 718                                         break;
 719                         }
 720                 }
 721         }
 722 }
 723
 724 static void hdac_hdmi_set_amp(struct hdac_device *hdev,
 725                                    hda_nid_t nid, int val)
 726 {
 727         if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
 728                 snd_hdac_codec_write(hdev, nid, 0,
 729                                         AC_VERB_SET_AMP_GAIN_MUTE, val);
 730 }
 731
 732
 733 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
 734                                         struct snd_kcontrol *kc, int event)
 735 {
 736         struct hdac_hdmi_port *port = w->priv;
 737         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 738         struct hdac_hdmi_pcm *pcm;
 739
 740         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 741                         __func__, w->name, event);
 742
 743         pcm = hdac_hdmi_get_pcm(hdev, port);
 744         if (!pcm)
 745                 return -EIO;
 746
 747         /* set the device if pin is mst_capable */
 748         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 749                 return -EIO;
 750
 751         switch (event) {
 752         case SND_SOC_DAPM_PRE_PMU:
 753                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
 754
 755                 /* Enable out path for this pin widget */
 756                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 757                                 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
 758
 759                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
 760
 761                 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
 762
 763         case SND_SOC_DAPM_POST_PMD:
 764                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
 765
 766                 /* Disable out path for this pin widget */
 767                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 768                                 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
 769
 770                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
 771                 break;
 772
 773         }
 774
 775         return 0;
 776 }
 777
 778 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
 779                                         struct snd_kcontrol *kc, int event)
 780 {
 781         struct hdac_hdmi_cvt *cvt = w->priv;
 782         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 783         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 784         struct hdac_hdmi_pcm *pcm;
 785
 786         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 787                         __func__, w->name, event);
 788
 789         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
 790         if (!pcm)
 791                 return -EIO;
 792
 793         switch (event) {
 794         case SND_SOC_DAPM_PRE_PMU:
 795                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
 796
 797                 /* Enable transmission */
 798                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 799                         AC_VERB_SET_DIGI_CONVERT_1, 1);
 800
 801                 /* Category Code (CC) to zero */
 802                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 803                         AC_VERB_SET_DIGI_CONVERT_2, 0);
 804
 805                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 806                                 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
 807                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 808                                 AC_VERB_SET_STREAM_FORMAT, pcm->format);
 809                 break;
 810
 811         case SND_SOC_DAPM_POST_PMD:
 812                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 813                                 AC_VERB_SET_CHANNEL_STREAMID, 0);
 814                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 815                                 AC_VERB_SET_STREAM_FORMAT, 0);
 816
 817                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
 818                 break;
 819
 820         }
 821
 822         return 0;
 823 }
 824
 825 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
 826                                         struct snd_kcontrol *kc, int event)
 827 {
 828         struct hdac_hdmi_port *port = w->priv;
 829         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 830         int mux_idx;
 831
 832         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 833                         __func__, w->name, event);
 834
 835         if (!kc)
 836                 kc  = w->kcontrols[0];
 837
 838         mux_idx = dapm_kcontrol_get_value(kc);
 839
 840         /* set the device if pin is mst_capable */
 841         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 842                 return -EIO;
 843
 844         if (mux_idx > 0) {
 845                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 846                         AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
 847         }
 848
 849         return 0;
 850 }
 851
 852 /*
 853  * Based on user selection, map the PINs with the PCMs.
 854  */
 855 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
 856                 struct snd_ctl_elem_value *ucontrol)
 857 {
 858         int ret;
 859         struct hdac_hdmi_port *p, *p_next;
 860         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 861         struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
 862         struct snd_soc_dapm_context *dapm = w->dapm;
 863         struct hdac_hdmi_port *port = w->priv;
 864         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
 865         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 866         struct hdac_hdmi_pcm *pcm = NULL;
 867         const char *cvt_name =  e->texts[ucontrol->value.enumerated.item[0]];
 868
 869         ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
 870         if (ret < 0)
 871                 return ret;
 872
 873         if (port == NULL)
 874                 return -EINVAL;
 875
 876         mutex_lock(&hdmi->pin_mutex);
 877         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 878                 if (list_empty(&pcm->port_list))
 879                         continue;
 880
 881                 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
 882                         if (p == port && p->id == port->id &&
 883                                         p->pin == port->pin) {
 884                                 hdac_hdmi_jack_report(pcm, port, false);
 885                                 list_del(&p->head);
 886                         }
 887                 }
 888         }
 889
 890         /*
 891          * Jack status is not reported during device probe as the
 892          * PCMs are not registered by then. So report it here.
 893          */
 894         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 895                 if (!strcmp(cvt_name, pcm->cvt->name)) {
 896                         list_add_tail(&port->head, &pcm->port_list);
 897                         if (port->eld.monitor_present && port->eld.eld_valid) {
 898                                 hdac_hdmi_jack_report(pcm, port, true);
 899                                 mutex_unlock(&hdmi->pin_mutex);
 900                                 return ret;
 901                         }
 902                 }
 903         }
 904         mutex_unlock(&hdmi->pin_mutex);
 905
 906         return ret;
 907 }
 908
 909 /*
 910  * Ideally the Mux inputs should be based on the num_muxs enumerated, but
 911  * the display driver seem to be programming the connection list for the pin
 912  * widget runtime.
 913  *
 914  * So programming all the possible inputs for the mux, the user has to take
 915  * care of selecting the right one and leaving all other inputs selected to
 916  * "NONE"
 917  */
 918 static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
 919                                 struct hdac_hdmi_port *port,
 920                                 struct snd_soc_dapm_widget *widget,
 921                                 const char *widget_name)
 922 {
 923         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 924         struct hdac_hdmi_pin *pin = port->pin;
 925         struct snd_kcontrol_new *kc;
 926         struct hdac_hdmi_cvt *cvt;
 927         struct soc_enum *se;
 928         char kc_name[NAME_SIZE];
 929         char mux_items[NAME_SIZE];
 930         /* To hold inputs to the Pin mux */
 931         char *items[HDA_MAX_CONNECTIONS];
 932         int i = 0;
 933         int num_items = hdmi->num_cvt + 1;
 934
 935         kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
 936         if (!kc)
 937                 return -ENOMEM;
 938
 939         se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
 940         if (!se)
 941                 return -ENOMEM;
 942
 943         snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
 944                                                 pin->nid, port->id);
 945         kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
 946         if (!kc->name)
 947                 return -ENOMEM;
 948
 949         kc->private_value = (long)se;
 950         kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 951         kc->access = 0;
 952         kc->info = snd_soc_info_enum_double;
 953         kc->put = hdac_hdmi_set_pin_port_mux;
 954         kc->get = snd_soc_dapm_get_enum_double;
 955
 956         se->reg = SND_SOC_NOPM;
 957
 958         /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
 959         se->items = num_items;
 960         se->mask = roundup_pow_of_two(se->items) - 1;
 961
 962         sprintf(mux_items, "NONE");
 963         items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
 964         if (!items[i])
 965                 return -ENOMEM;
 966
 967         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
 968                 i++;
 969                 sprintf(mux_items, "cvt %d", cvt->nid);
 970                 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
 971                 if (!items[i])
 972                         return -ENOMEM;
 973         }
 974
 975         se->texts = devm_kmemdup(&hdev->dev, items,
 976                         (num_items  * sizeof(char *)), GFP_KERNEL);
 977         if (!se->texts)
 978                 return -ENOMEM;
 979
 980         return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
 981                         snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
 982                         hdac_hdmi_pin_mux_widget_event,
 983                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
 984 }
 985
 986 /* Add cvt <- input <- mux route map */
 987 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
 988                         struct snd_soc_dapm_widget *widgets,
 989                         struct snd_soc_dapm_route *route, int rindex)
 990 {
 991         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 992         const struct snd_kcontrol_new *kc;
 993         struct soc_enum *se;
 994         int mux_index = hdmi->num_cvt + hdmi->num_ports;
 995         int i, j;
 996
 997         for (i = 0; i < hdmi->num_ports; i++) {
 998                 kc = widgets[mux_index].kcontrol_news;
 999                 se = (struct soc_enum *)kc->private_value;
1000                 for (j = 0; j < hdmi->num_cvt; j++) {
1001                         hdac_hdmi_fill_route(&route[rindex],
1002                                         widgets[mux_index].name,
1003                                         se->texts[j + 1],
1004                                         widgets[j].name, NULL);
1005
1006                         rindex++;
1007                 }
1008
1009                 mux_index++;
1010         }
1011 }
1012
1013 /*
1014  * Widgets are added in the below sequence
1015  *      Converter widgets for num converters enumerated
1016  *      Pin-port widgets for num ports for Pins enumerated
1017  *      Pin-port mux widgets to represent connenction list of pin widget
1018  *
1019  * For each port, one Mux and One output widget is added
1020  * Total widgets elements = num_cvt + (num_ports * 2);
1021  *
1022  * Routes are added as below:
1023  *      pin-port mux -> pin (based on num_ports)
1024  *      cvt -> "Input sel control" -> pin-port_mux
1025  *
1026  * Total route elements:
1027  *      num_ports + (pin_muxes * num_cvt)
1028  */
1029 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1030 {
1031         struct snd_soc_dapm_widget *widgets;
1032         struct snd_soc_dapm_route *route;
1033         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
1034         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1035         struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
1036         char widget_name[NAME_SIZE];
1037         struct hdac_hdmi_cvt *cvt;
1038         struct hdac_hdmi_pin *pin;
1039         int ret, i = 0, num_routes = 0, j;
1040
1041         if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1042                 return -EINVAL;
1043
1044         widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1045                                 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1046                                 GFP_KERNEL);
1047
1048         if (!widgets)
1049                 return -ENOMEM;
1050
1051         /* DAPM widgets to represent each converter widget */
1052         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1053                 sprintf(widget_name, "Converter %d", cvt->nid);
1054                 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1055                         snd_soc_dapm_aif_in, cvt,
1056                         widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1057                         hdac_hdmi_cvt_output_widget_event,
1058                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1059                 if (ret < 0)
1060                         return ret;
1061                 i++;
1062         }
1063
1064         list_for_each_entry(pin, &hdmi->pin_list, head) {
1065                 for (j = 0; j < pin->num_ports; j++) {
1066                         sprintf(widget_name, "hif%d-%d Output",
1067                                 pin->nid, pin->ports[j].id);
1068                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1069                                         snd_soc_dapm_output, &pin->ports[j],
1070                                         widget_name, NULL, NULL, 0,
1071                                         hdac_hdmi_pin_output_widget_event,
1072                                         SND_SOC_DAPM_PRE_PMU |
1073                                         SND_SOC_DAPM_POST_PMD);
1074                         if (ret < 0)
1075                                 return ret;
1076                         pin->ports[j].output_pin = widgets[i].name;
1077                         i++;
1078                 }
1079         }
1080
1081         /* DAPM widgets to represent the connection list to pin widget */
1082         list_for_each_entry(pin, &hdmi->pin_list, head) {
1083                 for (j = 0; j < pin->num_ports; j++) {
1084                         sprintf(widget_name, "Pin%d-Port%d Mux",
1085                                 pin->nid, pin->ports[j].id);
1086                         ret = hdac_hdmi_create_pin_port_muxs(hdev,
1087                                                 &pin->ports[j], &widgets[i],
1088                                                 widget_name);
1089                         if (ret < 0)
1090                                 return ret;
1091                         i++;
1092
1093                         /* For cvt to pin_mux mapping */
1094                         num_routes += hdmi->num_cvt;
1095
1096                         /* For pin_mux to pin mapping */
1097                         num_routes++;
1098                 }
1099         }
1100
1101         route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1102                                                         GFP_KERNEL);
1103         if (!route)
1104                 return -ENOMEM;
1105
1106         i = 0;
1107         /* Add pin <- NULL <- mux route map */
1108         list_for_each_entry(pin, &hdmi->pin_list, head) {
1109                 for (j = 0; j < pin->num_ports; j++) {
1110                         int sink_index = i + hdmi->num_cvt;
1111                         int src_index = sink_index + pin->num_ports *
1112                                                 hdmi->num_pin;
1113
1114                         hdac_hdmi_fill_route(&route[i],
1115                                 widgets[sink_index].name, NULL,
1116                                 widgets[src_index].name, NULL);
1117                         i++;
1118                 }
1119         }
1120
1121         hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
1122
1123         snd_soc_dapm_new_controls(dapm, widgets,
1124                 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1125
1126         snd_soc_dapm_add_routes(dapm, route, num_routes);
1127         snd_soc_dapm_new_widgets(dapm->card);
1128
1129         return 0;
1130
1131 }
1132
1133 static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
1134 {
1135         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1136         struct hdac_hdmi_dai_port_map *dai_map;
1137         struct hdac_hdmi_cvt *cvt;
1138         int dai_id = 0;
1139
1140         if (list_empty(&hdmi->cvt_list))
1141                 return -EINVAL;
1142
1143         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1144                 dai_map = &hdmi->dai_map[dai_id];
1145                 dai_map->dai_id = dai_id;
1146                 dai_map->cvt = cvt;
1147
1148                 dai_id++;
1149
1150                 if (dai_id == HDA_MAX_CVTS) {
1151                         dev_warn(&hdev->dev,
1152                                 "Max dais supported: %d\n", dai_id);
1153                         break;
1154                 }
1155         }
1156
1157         return 0;
1158 }
1159
1160 static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
1161 {
1162         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1163         struct hdac_hdmi_cvt *cvt;
1164         char name[NAME_SIZE];
1165
1166         cvt = devm_kzalloc(&hdev->dev, sizeof(*cvt), GFP_KERNEL);
1167         if (!cvt)
1168                 return -ENOMEM;
1169
1170         cvt->nid = nid;
1171         sprintf(name, "cvt %d", cvt->nid);
1172         cvt->name = devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1173         if (!cvt->name)
1174                 return -ENOMEM;
1175
1176         list_add_tail(&cvt->head, &hdmi->cvt_list);
1177         hdmi->num_cvt++;
1178
1179         return hdac_hdmi_query_cvt_params(hdev, cvt);
1180 }
1181
1182 static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
1183                         struct hdac_hdmi_port *port)
1184 {
1185         unsigned int ver, mnl;
1186
1187         ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1188                                                 >> DRM_ELD_VER_SHIFT;
1189
1190         if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1191                 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
1192                 return -EINVAL;
1193         }
1194
1195         mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1196                 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1197
1198         if (mnl > ELD_MAX_MNL) {
1199                 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
1200                 return -EINVAL;
1201         }
1202
1203         port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1204
1205         return 0;
1206 }
1207
1208 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1209                                     struct hdac_hdmi_port *port)
1210 {
1211         struct hdac_device *hdev = pin->hdev;
1212         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1213         struct hdac_hdmi_pcm *pcm;
1214         int size = 0;
1215         int port_id = -1;
1216
1217         if (!hdmi)
1218                 return;
1219
1220         /*
1221          * In case of non MST pin, get_eld info API expectes port
1222          * to be -1.
1223          */
1224         mutex_lock(&hdmi->pin_mutex);
1225         port->eld.monitor_present = false;
1226
1227         if (pin->mst_capable)
1228                 port_id = port->id;
1229
1230         size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1231                                 &port->eld.monitor_present,
1232                                 port->eld.eld_buffer,
1233                                 ELD_MAX_SIZE);
1234
1235         if (size > 0) {
1236                 size = min(size, ELD_MAX_SIZE);
1237                 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1238                         size = -EINVAL;
1239         }
1240
1241         if (size > 0) {
1242                 port->eld.eld_valid = true;
1243                 port->eld.eld_size = size;
1244         } else {
1245                 port->eld.eld_valid = false;
1246                 port->eld.eld_size = 0;
1247         }
1248
1249         pcm = hdac_hdmi_get_pcm(hdev, port);
1250
1251         if (!port->eld.monitor_present || !port->eld.eld_valid) {
1252
1253                 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1254                                                 __func__, pin->nid, port->id);
1255
1256                 /*
1257                  * PCMs are not registered during device probe, so don't
1258                  * report jack here. It will be done in usermode mux
1259                  * control select.
1260                  */
1261                 if (pcm)
1262                         hdac_hdmi_jack_report(pcm, port, false);
1263
1264                 mutex_unlock(&hdmi->pin_mutex);
1265                 return;
1266         }
1267
1268         if (port->eld.monitor_present && port->eld.eld_valid) {
1269                 if (pcm)
1270                         hdac_hdmi_jack_report(pcm, port, true);
1271
1272                 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1273                           port->eld.eld_buffer, port->eld.eld_size, false);
1274
1275         }
1276         mutex_unlock(&hdmi->pin_mutex);
1277 }
1278
1279 static int hdac_hdmi_add_ports(struct hdac_device *hdev,
1280                                struct hdac_hdmi_pin *pin)
1281 {
1282         struct hdac_hdmi_port *ports;
1283         int max_ports = HDA_MAX_PORTS;
1284         int i;
1285
1286         /*
1287          * FIXME: max_port may vary for each platform, so pass this as
1288          * as driver data or query from i915 interface when this API is
1289          * implemented.
1290          */
1291
1292         ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL);
1293         if (!ports)
1294                 return -ENOMEM;
1295
1296         for (i = 0; i < max_ports; i++) {
1297                 ports[i].id = i;
1298                 ports[i].pin = pin;
1299         }
1300         pin->ports = ports;
1301         pin->num_ports = max_ports;
1302         return 0;
1303 }
1304
1305 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1306 {
1307         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1308         struct hdac_hdmi_pin *pin;
1309         int ret;
1310
1311         pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL);
1312         if (!pin)
1313                 return -ENOMEM;
1314
1315         pin->nid = nid;
1316         pin->mst_capable = false;
1317         pin->hdev = hdev;
1318         ret = hdac_hdmi_add_ports(hdev, pin);
1319         if (ret < 0)
1320                 return ret;
1321
1322         list_add_tail(&pin->head, &hdmi->pin_list);
1323         hdmi->num_pin++;
1324         hdmi->num_ports += pin->num_ports;
1325
1326         return 0;
1327 }
1328
1329 #define INTEL_VENDOR_NID_0x2 0x02
1330 #define INTEL_VENDOR_NID_0x8 0x08
1331 #define INTEL_VENDOR_NID_0xb 0x0b
1332 #define INTEL_GET_VENDOR_VERB 0xf81
1333 #define INTEL_SET_VENDOR_VERB 0x781
1334 #define INTEL_EN_DP12           0x02 /* enable DP 1.2 features */
1335 #define INTEL_EN_ALL_PIN_CVTS   0x01 /* enable 2nd & 3rd pins and convertors */
1336
1337 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1338 {
1339         unsigned int vendor_param;
1340         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1341         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1342
1343         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1344                                 INTEL_GET_VENDOR_VERB, 0);
1345         if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1346                 return;
1347
1348         vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1349         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1350                                 INTEL_SET_VENDOR_VERB, vendor_param);
1351         if (vendor_param == -1)
1352                 return;
1353 }
1354
1355 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1356 {
1357         unsigned int vendor_param;
1358         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1359         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1360
1361         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1362                                 INTEL_GET_VENDOR_VERB, 0);
1363         if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1364                 return;
1365
1366         /* enable DP1.2 mode */
1367         vendor_param |= INTEL_EN_DP12;
1368         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1369                                 INTEL_SET_VENDOR_VERB, vendor_param);
1370         if (vendor_param == -1)
1371                 return;
1372
1373 }
1374
1375 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1376         .startup = hdac_hdmi_pcm_open,
1377         .shutdown = hdac_hdmi_pcm_close,
1378         .hw_params = hdac_hdmi_set_hw_params,
1379         .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1380 };
1381
1382 /*
1383  * Each converter can support a stream independently. So a dai is created
1384  * based on the number of converter queried.
1385  */
1386 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1387                 struct snd_soc_dai_driver **dais,
1388                 struct hdac_hdmi_priv *hdmi, int num_dais)
1389 {
1390         struct snd_soc_dai_driver *hdmi_dais;
1391         struct hdac_hdmi_cvt *cvt;
1392         char name[NAME_SIZE], dai_name[NAME_SIZE];
1393         int i = 0;
1394         u32 rates, bps;
1395         unsigned int rate_max = 384000, rate_min = 8000;
1396         u64 formats;
1397         int ret;
1398
1399         hdmi_dais = devm_kzalloc(&hdev->dev,
1400                         (sizeof(*hdmi_dais) * num_dais),
1401                         GFP_KERNEL);
1402         if (!hdmi_dais)
1403                 return -ENOMEM;
1404
1405         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1406                 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1407                                         &rates, &formats, &bps);
1408                 if (ret)
1409                         return ret;
1410
1411                 /* Filter out 44.1, 88.2 and 176.4Khz */
1412                 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1413                            SNDRV_PCM_RATE_176400);
1414                 if (!rates)
1415                         return -EINVAL;
1416
1417                 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1418                 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1419                                         dai_name, GFP_KERNEL);
1420
1421                 if (!hdmi_dais[i].name)
1422                         return -ENOMEM;
1423
1424                 snprintf(name, sizeof(name), "hifi%d", i+1);
1425                 hdmi_dais[i].playback.stream_name =
1426                                 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1427                 if (!hdmi_dais[i].playback.stream_name)
1428                         return -ENOMEM;
1429
1430                 /*
1431                  * Set caps based on capability queried from the converter.
1432                  * It will be constrained runtime based on ELD queried.
1433                  */
1434                 hdmi_dais[i].playback.formats = formats;
1435                 hdmi_dais[i].playback.rates = rates;
1436                 hdmi_dais[i].playback.rate_max = rate_max;
1437                 hdmi_dais[i].playback.rate_min = rate_min;
1438                 hdmi_dais[i].playback.channels_min = 2;
1439                 hdmi_dais[i].playback.channels_max = 2;
1440                 hdmi_dais[i].playback.sig_bits = bps;
1441                 hdmi_dais[i].ops = &hdmi_dai_ops;
1442                 i++;
1443         }
1444
1445         *dais = hdmi_dais;
1446         hdmi->dai_drv = hdmi_dais;
1447
1448         return 0;
1449 }
1450
1451 /*
1452  * Parse all nodes and store the cvt/pin nids in array
1453  * Add one time initialization for pin and cvt widgets
1454  */
1455 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1456                 struct snd_soc_dai_driver **dais, int *num_dais)
1457 {
1458         hda_nid_t nid;
1459         int i, num_nodes;
1460         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1461         int ret;
1462
1463         hdac_hdmi_skl_enable_all_pins(hdev);
1464         hdac_hdmi_skl_enable_dp12(hdev);
1465
1466         num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1467         if (!nid || num_nodes <= 0) {
1468                 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1469                 return -EINVAL;
1470         }
1471
1472         for (i = 0; i < num_nodes; i++, nid++) {
1473                 unsigned int caps;
1474                 unsigned int type;
1475
1476                 caps = get_wcaps(hdev, nid);
1477                 type = get_wcaps_type(caps);
1478
1479                 if (!(caps & AC_WCAP_DIGITAL))
1480                         continue;
1481
1482                 switch (type) {
1483
1484                 case AC_WID_AUD_OUT:
1485                         ret = hdac_hdmi_add_cvt(hdev, nid);
1486                         if (ret < 0)
1487                                 return ret;
1488                         break;
1489
1490                 case AC_WID_PIN:
1491                         ret = hdac_hdmi_add_pin(hdev, nid);
1492                         if (ret < 0)
1493                                 return ret;
1494                         break;
1495                 }
1496         }
1497
1498         if (!hdmi->num_pin || !hdmi->num_cvt) {
1499                 ret = -EIO;
1500                 dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__);
1501                 return ret;
1502         }
1503
1504         ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1505         if (ret) {
1506                 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1507                         ret);
1508                 return ret;
1509         }
1510
1511         *num_dais = hdmi->num_cvt;
1512         ret = hdac_hdmi_init_dai_map(hdev);
1513         if (ret < 0)
1514                 dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n",
1515                         ret);
1516         return ret;
1517 }
1518
1519 static int hdac_hdmi_pin2port(void *aptr, int pin)
1520 {
1521         struct hdac_device *hdev = aptr;
1522         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1523         const int *map = hdmi->drv_data->port_map;
1524         int i;
1525
1526         if (!hdmi->drv_data->port_num)
1527                 return pin - 4; /* map NID 0x05 -> port #1 */
1528
1529         /*
1530          * looking for the pin number in the mapping table and return
1531          * the index which indicate the port number
1532          */
1533         for (i = 0; i < hdmi->drv_data->port_num; i++) {
1534                 if (pin == map[i])
1535                         return i + 1;
1536         }
1537
1538         /* return -1 if pin number exceeds our expectation */
1539         dev_err(&hdev->dev, "Can't find the port for pin %d\n", pin);
1540         return -1;
1541 }
1542
1543 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1544 {
1545         struct hdac_device *hdev = aptr;
1546         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1547         struct hdac_hdmi_pin *pin = NULL;
1548         struct hdac_hdmi_port *hport = NULL;
1549         struct snd_soc_component *component = hdmi->component;
1550         int i;
1551         hda_nid_t pin_nid;
1552
1553         if (!hdmi->drv_data->port_num) {
1554                 /* for legacy platforms */
1555                 pin_nid = port + 0x04;
1556         } else if (port < hdmi->drv_data->port_num) {
1557                 /* get pin number from the pin2port mapping table */
1558                 pin_nid = hdmi->drv_data->port_map[port - 1];
1559         } else {
1560                 dev_err(&hdev->dev, "Can't find the pin for port %d\n", port);
1561                 return;
1562         }
1563
1564         dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1565                                                         pin_nid, pipe);
1566
1567         /*
1568          * skip notification during system suspend (but not in runtime PM);
1569          * the state will be updated at resume. Also since the ELD and
1570          * connection states are updated in anyway at the end of the resume,
1571          * we can skip it when received during PM process.
1572          */
1573         if (snd_power_get_state(component->card->snd_card) !=
1574                         SNDRV_CTL_POWER_D0)
1575                 return;
1576
1577         if (atomic_read(&hdev->in_pm))
1578                 return;
1579
1580         list_for_each_entry(pin, &hdmi->pin_list, head) {
1581                 if (pin->nid != pin_nid)
1582                         continue;
1583
1584                 /* In case of non MST pin, pipe is -1 */
1585                 if (pipe == -1) {
1586                         pin->mst_capable = false;
1587                         /* if not MST, default is port[0] */
1588                         hport = &pin->ports[0];
1589                 } else {
1590                         for (i = 0; i < pin->num_ports; i++) {
1591                                 pin->mst_capable = true;
1592                                 if (pin->ports[i].id == pipe) {
1593                                         hport = &pin->ports[i];
1594                                         break;
1595                                 }
1596                         }
1597                 }
1598
1599                 if (hport)
1600                         hdac_hdmi_present_sense(pin, hport);
1601         }
1602
1603 }
1604
1605 static struct drm_audio_component_audio_ops aops = {
1606         .pin2port       = hdac_hdmi_pin2port,
1607         .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1608 };
1609
1610 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1611                                                 int device)
1612 {
1613         struct snd_soc_pcm_runtime *rtd;
1614
1615         for_each_card_rtds(card, rtd) {
1616                 if (rtd->pcm && (rtd->pcm->device == device))
1617                         return rtd->pcm;
1618         }
1619
1620         return NULL;
1621 }
1622
1623 /* create jack pin kcontrols */
1624 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1625                                     struct hdac_device *hdev)
1626 {
1627         struct hdac_hdmi_pin *pin;
1628         struct snd_kcontrol_new *kc;
1629         char kc_name[NAME_SIZE], xname[NAME_SIZE];
1630         char *name;
1631         int i = 0, j;
1632         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1633         struct snd_soc_component *component = hdmi->component;
1634
1635         kc = devm_kcalloc(component->dev, hdmi->num_ports,
1636                                 sizeof(*kc), GFP_KERNEL);
1637
1638         if (!kc)
1639                 return -ENOMEM;
1640
1641         list_for_each_entry(pin, &hdmi->pin_list, head) {
1642                 for (j = 0; j < pin->num_ports; j++) {
1643                         snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1644                                                 pin->nid, pin->ports[j].id);
1645                         name = devm_kstrdup(component->dev, xname, GFP_KERNEL);
1646                         if (!name)
1647                                 return -ENOMEM;
1648                         snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1649                         kc[i].name = devm_kstrdup(component->dev, kc_name,
1650                                                         GFP_KERNEL);
1651                         if (!kc[i].name)
1652                                 return -ENOMEM;
1653
1654                         kc[i].private_value = (unsigned long)name;
1655                         kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1656                         kc[i].access = 0;
1657                         kc[i].info = snd_soc_dapm_info_pin_switch;
1658                         kc[i].put = snd_soc_dapm_put_pin_switch;
1659                         kc[i].get = snd_soc_dapm_get_pin_switch;
1660                         i++;
1661                 }
1662         }
1663
1664         return snd_soc_add_card_controls(card, kc, i);
1665 }
1666
1667 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1668                         struct snd_soc_dapm_context *dapm)
1669 {
1670         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1671         struct hdac_device *hdev = hdmi->hdev;
1672         struct hdac_hdmi_pin *pin;
1673         struct snd_soc_dapm_widget *widgets;
1674         struct snd_soc_dapm_route *route;
1675         char w_name[NAME_SIZE];
1676         int i = 0, j, ret;
1677
1678         widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1679                                 sizeof(*widgets), GFP_KERNEL);
1680
1681         if (!widgets)
1682                 return -ENOMEM;
1683
1684         route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1685                                 sizeof(*route), GFP_KERNEL);
1686         if (!route)
1687                 return -ENOMEM;
1688
1689         /* create Jack DAPM widget */
1690         list_for_each_entry(pin, &hdmi->pin_list, head) {
1691                 for (j = 0; j < pin->num_ports; j++) {
1692                         snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1693                                                 pin->nid, pin->ports[j].id);
1694
1695                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1696                                         snd_soc_dapm_spk, NULL,
1697                                         w_name, NULL, NULL, 0, NULL, 0);
1698                         if (ret < 0)
1699                                 return ret;
1700
1701                         pin->ports[j].jack_pin = widgets[i].name;
1702                         pin->ports[j].dapm = dapm;
1703
1704                         /* add to route from Jack widget to output */
1705                         hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1706                                         NULL, pin->ports[j].output_pin, NULL);
1707
1708                         i++;
1709                 }
1710         }
1711
1712         /* Add Route from Jack widget to the output widget */
1713         ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1714         if (ret < 0)
1715                 return ret;
1716
1717         ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1718         if (ret < 0)
1719                 return ret;
1720
1721         ret = snd_soc_dapm_new_widgets(dapm->card);
1722         if (ret < 0)
1723                 return ret;
1724
1725         /* Add Jack Pin switch Kcontrol */
1726         ret = create_fill_jack_kcontrols(dapm->card, hdev);
1727
1728         if (ret < 0)
1729                 return ret;
1730
1731         /* default set the Jack Pin switch to OFF */
1732         list_for_each_entry(pin, &hdmi->pin_list, head) {
1733                 for (j = 0; j < pin->num_ports; j++)
1734                         snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1735                                                 pin->ports[j].jack_pin);
1736         }
1737
1738         return 0;
1739 }
1740 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1741
1742 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1743                                 struct snd_soc_jack *jack)
1744 {
1745         struct snd_soc_component *component = dai->component;
1746         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1747         struct hdac_device *hdev = hdmi->hdev;
1748         struct hdac_hdmi_pcm *pcm;
1749         struct snd_pcm *snd_pcm;
1750         int err;
1751
1752         /*
1753          * this is a new PCM device, create new pcm and
1754          * add to the pcm list
1755          */
1756         pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL);
1757         if (!pcm)
1758                 return -ENOMEM;
1759         pcm->pcm_id = device;
1760         pcm->cvt = hdmi->dai_map[dai->id].cvt;
1761         pcm->jack_event = 0;
1762         pcm->jack = jack;
1763         mutex_init(&pcm->lock);
1764         INIT_LIST_HEAD(&pcm->port_list);
1765         snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1766         if (snd_pcm) {
1767                 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1768                 if (err < 0) {
1769                         dev_err(&hdev->dev,
1770                                 "chmap control add failed with err: %d for pcm: %d\n",
1771                                 err, device);
1772                         return err;
1773                 }
1774         }
1775
1776         list_add_tail(&pcm->head, &hdmi->pcm_list);
1777
1778         return 0;
1779 }
1780 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1781
1782 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1783                         struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1784 {
1785         int i;
1786         struct hdac_hdmi_pin *pin;
1787
1788         list_for_each_entry(pin, &hdmi->pin_list, head) {
1789                 if (detect_pin_caps) {
1790
1791                         if (hdac_hdmi_get_port_len(hdev, pin->nid)  == 0)
1792                                 pin->mst_capable = false;
1793                         else
1794                                 pin->mst_capable = true;
1795                 }
1796
1797                 for (i = 0; i < pin->num_ports; i++) {
1798                         if (!pin->mst_capable && i > 0)
1799                                 continue;
1800
1801                         hdac_hdmi_present_sense(pin, &pin->ports[i]);
1802                 }
1803         }
1804 }
1805
1806 static int hdmi_codec_probe(struct snd_soc_component *component)
1807 {
1808         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1809         struct hdac_device *hdev = hdmi->hdev;
1810         struct snd_soc_dapm_context *dapm =
1811                 snd_soc_component_get_dapm(component);
1812         struct hdac_ext_link *hlink = NULL;
1813         int ret;
1814
1815         hdmi->component = component;
1816
1817         /*
1818          * hold the ref while we probe, also no need to drop the ref on
1819          * exit, we call pm_runtime_suspend() so that will do for us
1820          */
1821         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
1822         if (!hlink) {
1823                 dev_err(&hdev->dev, "hdac link not found\n");
1824                 return -EIO;
1825         }
1826
1827         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1828
1829         ret = create_fill_widget_route_map(dapm);
1830         if (ret < 0)
1831                 return ret;
1832
1833         aops.audio_ptr = hdev;
1834         ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1835         if (ret < 0) {
1836                 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1837                 return ret;
1838         }
1839
1840         hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1841         /* Imp: Store the card pointer in hda_codec */
1842         hdmi->card = dapm->card->snd_card;
1843
1844         /*
1845          * Setup a device_link between card device and HDMI codec device.
1846          * The card device is the consumer and the HDMI codec device is
1847          * the supplier. With this setting, we can make sure that the audio
1848          * domain in display power will be always turned on before operating
1849          * on the HDMI audio codec registers.
1850          * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make
1851          * sure the device link is freed when the machine driver is removed.
1852          */
1853         device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE |
1854                         DL_FLAG_AUTOREMOVE_CONSUMER);
1855         /*
1856          * hdac_device core already sets the state to active and calls
1857          * get_noresume. So enable runtime and set the device to suspend.
1858          */
1859         pm_runtime_enable(&hdev->dev);
1860         pm_runtime_put(&hdev->dev);
1861         pm_runtime_suspend(&hdev->dev);
1862
1863         return 0;
1864 }
1865
1866 static void hdmi_codec_remove(struct snd_soc_component *component)
1867 {
1868         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1869         struct hdac_device *hdev = hdmi->hdev;
1870
1871         pm_runtime_disable(&hdev->dev);
1872 }
1873
1874 #ifdef CONFIG_PM_SLEEP
1875 static int hdmi_codec_resume(struct device *dev)
1876 {
1877         struct hdac_device *hdev = dev_to_hdac_dev(dev);
1878         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1879         int ret;
1880
1881         ret = pm_runtime_force_resume(dev);
1882         if (ret < 0)
1883                 return ret;
1884         /*
1885          * As the ELD notify callback request is not entertained while the
1886          * device is in suspend state. Need to manually check detection of
1887          * all pins here. pin capablity change is not support, so use the
1888          * already set pin caps.
1889          *
1890          * NOTE: this is safe to call even if the codec doesn't actually resume.
1891          * The pin check involves only with DRM audio component hooks, so it
1892          * works even if the HD-audio side is still dreaming peacefully.
1893          */
1894         hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
1895         return 0;
1896 }
1897 #else
1898 #define hdmi_codec_resume NULL
1899 #endif
1900
1901 static const struct snd_soc_component_driver hdmi_hda_codec = {
1902         .probe                  = hdmi_codec_probe,
1903         .remove                 = hdmi_codec_remove,
1904         .use_pmdown_time        = 1,
1905         .endianness             = 1,
1906         .non_legacy_dai_naming  = 1,
1907 };
1908
1909 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
1910                                         unsigned char *chmap)
1911 {
1912         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1913         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1914
1915         memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1916 }
1917
1918 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
1919                                 unsigned char *chmap, int prepared)
1920 {
1921         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1922         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1923         struct hdac_hdmi_port *port;
1924
1925         if (!pcm)
1926                 return;
1927
1928         if (list_empty(&pcm->port_list))
1929                 return;
1930
1931         mutex_lock(&pcm->lock);
1932         pcm->chmap_set = true;
1933         memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1934         list_for_each_entry(port, &pcm->port_list, head)
1935                 if (prepared)
1936                         hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
1937         mutex_unlock(&pcm->lock);
1938 }
1939
1940 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
1941 {
1942         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1943         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1944
1945         if (!pcm)
1946                 return false;
1947
1948         if (list_empty(&pcm->port_list))
1949                 return false;
1950
1951         return true;
1952 }
1953
1954 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
1955 {
1956         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1957         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1958         struct hdac_hdmi_port *port;
1959
1960         if (!pcm)
1961                 return 0;
1962
1963         if (list_empty(&pcm->port_list))
1964                 return 0;
1965
1966         port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
1967
1968         if (!port || !port->eld.eld_valid)
1969                 return 0;
1970
1971         return port->eld.info.spk_alloc;
1972 }
1973
1974 static struct hdac_hdmi_drv_data intel_icl_drv_data  = {
1975         .vendor_nid = INTEL_VENDOR_NID_0x2,
1976         .port_map = icl_pin2port_map,
1977         .port_num = ARRAY_SIZE(icl_pin2port_map),
1978 };
1979
1980 static struct hdac_hdmi_drv_data intel_glk_drv_data  = {
1981         .vendor_nid = INTEL_VENDOR_NID_0xb,
1982 };
1983
1984 static struct hdac_hdmi_drv_data intel_drv_data  = {
1985         .vendor_nid = INTEL_VENDOR_NID_0x8,
1986 };
1987
1988 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
1989 {
1990         struct hdac_hdmi_priv *hdmi_priv = NULL;
1991         struct snd_soc_dai_driver *hdmi_dais = NULL;
1992         struct hdac_ext_link *hlink = NULL;
1993         int num_dais = 0;
1994         int ret = 0;
1995         struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
1996         const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
1997
1998         /* hold the ref while we probe */
1999         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
2000         if (!hlink) {
2001                 dev_err(&hdev->dev, "hdac link not found\n");
2002                 return -EIO;
2003         }
2004
2005         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2006
2007         hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2008         if (hdmi_priv == NULL)
2009                 return -ENOMEM;
2010
2011         snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2012         hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2013         hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2014         hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2015         hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2016         hdmi_priv->hdev = hdev;
2017
2018         if (!hdac_id)
2019                 return -ENODEV;
2020
2021         if (hdac_id->driver_data)
2022                 hdmi_priv->drv_data =
2023                         (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2024         else
2025                 hdmi_priv->drv_data = &intel_drv_data;
2026
2027         dev_set_drvdata(&hdev->dev, hdmi_priv);
2028
2029         INIT_LIST_HEAD(&hdmi_priv->pin_list);
2030         INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2031         INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2032         mutex_init(&hdmi_priv->pin_mutex);
2033
2034         /*
2035          * Turned off in the runtime_suspend during the first explicit
2036          * pm_runtime_suspend call.
2037          */
2038         snd_hdac_display_power(hdev->bus, hdev->addr, true);
2039
2040         ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2041         if (ret < 0) {
2042                 dev_err(&hdev->dev,
2043                         "Failed in parse and map nid with err: %d\n", ret);
2044                 return ret;
2045         }
2046         snd_hdac_refresh_widgets(hdev, true);
2047
2048         /* ASoC specific initialization */
2049         ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2050                                         hdmi_dais, num_dais);
2051
2052         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2053
2054         return ret;
2055 }
2056
2057 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2058 {
2059         snd_hdac_display_power(hdev->bus, hdev->addr, false);
2060
2061         return 0;
2062 }
2063
2064 #ifdef CONFIG_PM
2065 static int hdac_hdmi_runtime_suspend(struct device *dev)
2066 {
2067         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2068         struct hdac_bus *bus = hdev->bus;
2069         struct hdac_ext_link *hlink = NULL;
2070
2071         dev_dbg(dev, "Enter: %s\n", __func__);
2072
2073         /* controller may not have been initialized for the first time */
2074         if (!bus)
2075                 return 0;
2076
2077         /*
2078          * Power down afg.
2079          * codec_read is preferred over codec_write to set the power state.
2080          * This way verb is send to set the power state and response
2081          * is received. So setting power state is ensured without using loop
2082          * to read the state.
2083          */
2084         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2085                                                         AC_PWRST_D3);
2086
2087         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2088         if (!hlink) {
2089                 dev_err(dev, "hdac link not found\n");
2090                 return -EIO;
2091         }
2092
2093         snd_hdac_ext_bus_link_put(bus, hlink);
2094
2095         snd_hdac_display_power(bus, hdev->addr, false);
2096
2097         return 0;
2098 }
2099
2100 static int hdac_hdmi_runtime_resume(struct device *dev)
2101 {
2102         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2103         struct hdac_bus *bus = hdev->bus;
2104         struct hdac_ext_link *hlink = NULL;
2105
2106         dev_dbg(dev, "Enter: %s\n", __func__);
2107
2108         /* controller may not have been initialized for the first time */
2109         if (!bus)
2110                 return 0;
2111
2112         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2113         if (!hlink) {
2114                 dev_err(dev, "hdac link not found\n");
2115                 return -EIO;
2116         }
2117
2118         snd_hdac_ext_bus_link_get(bus, hlink);
2119
2120         snd_hdac_display_power(bus, hdev->addr, true);
2121
2122         hdac_hdmi_skl_enable_all_pins(hdev);
2123         hdac_hdmi_skl_enable_dp12(hdev);
2124
2125         /* Power up afg */
2126         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2127                                                         AC_PWRST_D0);
2128
2129         return 0;
2130 }
2131 #else
2132 #define hdac_hdmi_runtime_suspend NULL
2133 #define hdac_hdmi_runtime_resume NULL
2134 #endif
2135
2136 static const struct dev_pm_ops hdac_hdmi_pm = {
2137         SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2138         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume)
2139 };
2140
2141 static const struct hda_device_id hdmi_list[] = {
2142         HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2143         HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2144         HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2145         HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2146                                                    &intel_glk_drv_data),
2147         HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2148                                                    &intel_glk_drv_data),
2149         HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
2150                                                    &intel_icl_drv_data),
2151         {}
2152 };
2153
2154 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2155
2156 static struct hdac_driver hdmi_driver = {
2157         .driver = {
2158                 .name   = "HDMI HDA Codec",
2159                 .pm = &hdac_hdmi_pm,
2160         },
2161         .id_table       = hdmi_list,
2162         .probe          = hdac_hdmi_dev_probe,
2163         .remove         = hdac_hdmi_dev_remove,
2164 };
2165
2166 static int __init hdmi_init(void)
2167 {
2168         return snd_hda_ext_driver_register(&hdmi_driver);
2169 }
2170
2171 static void __exit hdmi_exit(void)
2172 {
2173         snd_hda_ext_driver_unregister(&hdmi_driver);
2174 }
2175
2176 module_init(hdmi_init);
2177 module_exit(hdmi_exit);
2178
2179 MODULE_LICENSE("GPL v2");
2180 MODULE_DESCRIPTION("HDMI HD codec");
2181 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2182 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");