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
1894 static int hdmi_codec_prepare(struct device *dev)
1895 {
1896         struct hdac_device *hdev = dev_to_hdac_dev(dev);
1897
1898         pm_runtime_get_sync(&hdev->dev);
1899
1900         /*
1901          * Power down afg.
1902          * codec_read is preferred over codec_write to set the power state.
1903          * This way verb is send to set the power state and response
1904          * is received. So setting power state is ensured without using loop
1905          * to read the state.
1906          */
1907         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
1908                                                         AC_PWRST_D3);
1909
1910         return 0;
1911 }
1912
1913 static void hdmi_codec_complete(struct device *dev)
1914 {
1915         struct hdac_device *hdev = dev_to_hdac_dev(dev);
1916         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1917
1918         /* Power up afg */
1919         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
1920                                                         AC_PWRST_D0);
1921
1922         hdac_hdmi_skl_enable_all_pins(hdev);
1923         hdac_hdmi_skl_enable_dp12(hdev);
1924
1925         /*
1926          * As the ELD notify callback request is not entertained while the
1927          * device is in suspend state. Need to manually check detection of
1928          * all pins here. pin capablity change is not support, so use the
1929          * already set pin caps.
1930          */
1931         hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
1932
1933         pm_runtime_put_sync(&hdev->dev);
1934 }
1935 #else
1936 #define hdmi_codec_prepare NULL
1937 #define hdmi_codec_complete NULL
1938 #endif
1939
1940 static const struct snd_soc_component_driver hdmi_hda_codec = {
1941         .probe                  = hdmi_codec_probe,
1942         .remove                 = hdmi_codec_remove,
1943         .use_pmdown_time        = 1,
1944         .endianness             = 1,
1945         .non_legacy_dai_naming  = 1,
1946 };
1947
1948 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
1949                                         unsigned char *chmap)
1950 {
1951         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1952         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1953
1954         memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1955 }
1956
1957 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
1958                                 unsigned char *chmap, int prepared)
1959 {
1960         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1961         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1962         struct hdac_hdmi_port *port;
1963
1964         if (!pcm)
1965                 return;
1966
1967         if (list_empty(&pcm->port_list))
1968                 return;
1969
1970         mutex_lock(&pcm->lock);
1971         pcm->chmap_set = true;
1972         memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1973         list_for_each_entry(port, &pcm->port_list, head)
1974                 if (prepared)
1975                         hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
1976         mutex_unlock(&pcm->lock);
1977 }
1978
1979 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
1980 {
1981         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1982         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1983
1984         if (!pcm)
1985                 return false;
1986
1987         if (list_empty(&pcm->port_list))
1988                 return false;
1989
1990         return true;
1991 }
1992
1993 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
1994 {
1995         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1996         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1997         struct hdac_hdmi_port *port;
1998
1999         if (!pcm)
2000                 return 0;
2001
2002         if (list_empty(&pcm->port_list))
2003                 return 0;
2004
2005         port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
2006
2007         if (!port || !port->eld.eld_valid)
2008                 return 0;
2009
2010         return port->eld.info.spk_alloc;
2011 }
2012
2013 static struct hdac_hdmi_drv_data intel_icl_drv_data  = {
2014         .vendor_nid = INTEL_VENDOR_NID_0x2,
2015         .port_map = icl_pin2port_map,
2016         .port_num = ARRAY_SIZE(icl_pin2port_map),
2017 };
2018
2019 static struct hdac_hdmi_drv_data intel_glk_drv_data  = {
2020         .vendor_nid = INTEL_VENDOR_NID_0xb,
2021 };
2022
2023 static struct hdac_hdmi_drv_data intel_drv_data  = {
2024         .vendor_nid = INTEL_VENDOR_NID_0x8,
2025 };
2026
2027 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
2028 {
2029         struct hdac_hdmi_priv *hdmi_priv = NULL;
2030         struct snd_soc_dai_driver *hdmi_dais = NULL;
2031         struct hdac_ext_link *hlink = NULL;
2032         int num_dais = 0;
2033         int ret = 0;
2034         struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
2035         const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
2036
2037         /* hold the ref while we probe */
2038         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
2039         if (!hlink) {
2040                 dev_err(&hdev->dev, "hdac link not found\n");
2041                 return -EIO;
2042         }
2043
2044         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2045
2046         hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2047         if (hdmi_priv == NULL)
2048                 return -ENOMEM;
2049
2050         snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2051         hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2052         hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2053         hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2054         hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2055         hdmi_priv->hdev = hdev;
2056
2057         if (!hdac_id)
2058                 return -ENODEV;
2059
2060         if (hdac_id->driver_data)
2061                 hdmi_priv->drv_data =
2062                         (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2063         else
2064                 hdmi_priv->drv_data = &intel_drv_data;
2065
2066         dev_set_drvdata(&hdev->dev, hdmi_priv);
2067
2068         INIT_LIST_HEAD(&hdmi_priv->pin_list);
2069         INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2070         INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2071         mutex_init(&hdmi_priv->pin_mutex);
2072
2073         /*
2074          * Turned off in the runtime_suspend during the first explicit
2075          * pm_runtime_suspend call.
2076          */
2077         snd_hdac_display_power(hdev->bus, hdev->addr, true);
2078
2079         ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2080         if (ret < 0) {
2081                 dev_err(&hdev->dev,
2082                         "Failed in parse and map nid with err: %d\n", ret);
2083                 return ret;
2084         }
2085         snd_hdac_refresh_widgets(hdev, true);
2086
2087         /* ASoC specific initialization */
2088         ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2089                                         hdmi_dais, num_dais);
2090
2091         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2092
2093         return ret;
2094 }
2095
2096 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2097 {
2098         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2099         struct hdac_hdmi_pin *pin, *pin_next;
2100         struct hdac_hdmi_cvt *cvt, *cvt_next;
2101         struct hdac_hdmi_pcm *pcm, *pcm_next;
2102         struct hdac_hdmi_port *port, *port_next;
2103         int i;
2104
2105         snd_hdac_display_power(hdev->bus, hdev->addr, false);
2106
2107         list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) {
2108                 pcm->cvt = NULL;
2109                 if (list_empty(&pcm->port_list))
2110                         continue;
2111
2112                 list_for_each_entry_safe(port, port_next,
2113                                         &pcm->port_list, head)
2114                         list_del(&port->head);
2115
2116                 list_del(&pcm->head);
2117                 kfree(pcm);
2118         }
2119
2120         list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) {
2121                 list_del(&cvt->head);
2122                 kfree(cvt->name);
2123                 kfree(cvt);
2124         }
2125
2126         list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) {
2127                 for (i = 0; i < pin->num_ports; i++)
2128                         pin->ports[i].pin = NULL;
2129                 kfree(pin->ports);
2130                 list_del(&pin->head);
2131                 kfree(pin);
2132         }
2133
2134         return 0;
2135 }
2136
2137 #ifdef CONFIG_PM
2138 /*
2139  * Power management sequences
2140  * ==========================
2141  *
2142  * The following explains the PM handling of HDAC HDMI with its parent
2143  * device SKL and display power usage
2144  *
2145  * Probe
2146  * -----
2147  * In SKL probe,
2148  * 1. skl_probe_work() powers up the display (refcount++ -> 1)
2149  * 2. enumerates the codecs on the link
2150  * 3. powers down the display  (refcount-- -> 0)
2151  *
2152  * In HDAC HDMI probe,
2153  * 1. hdac_hdmi_dev_probe() powers up the display (refcount++ -> 1)
2154  * 2. probe the codec
2155  * 3. put the HDAC HDMI device to runtime suspend
2156  * 4. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0)
2157  *
2158  * Once children are runtime suspended, SKL device also goes to runtime
2159  * suspend
2160  *
2161  * HDMI Playback
2162  * -------------
2163  * Open HDMI device,
2164  * 1. skl_runtime_resume() invoked
2165  * 2. hdac_hdmi_runtime_resume() powers up the display (refcount++ -> 1)
2166  *
2167  * Close HDMI device,
2168  * 1. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0)
2169  * 2. skl_runtime_suspend() invoked
2170  *
2171  * S0/S3 Cycle with playback in progress
2172  * -------------------------------------
2173  * When the device is opened for playback, the device is runtime active
2174  * already and the display refcount is 1 as explained above.
2175  *
2176  * Entering to S3,
2177  * 1. hdmi_codec_prepare() invoke the runtime resume of codec which just
2178  *    increments the PM runtime usage count of the codec since the device
2179  *    is in use already
2180  * 2. skl_suspend() powers down the display (refcount-- -> 0)
2181  *
2182  * Wakeup from S3,
2183  * 1. skl_resume() powers up the display (refcount++ -> 1)
2184  * 2. hdmi_codec_complete() invokes the runtime suspend of codec which just
2185  *    decrements the PM runtime usage count of the codec since the device
2186  *    is in use already
2187  *
2188  * Once playback is stopped, the display refcount is set to 0 as explained
2189  * above in the HDMI playback sequence. The PM handlings are designed in
2190  * such way that to balance the refcount of display power when the codec
2191  * device put to S3 while playback is going on.
2192  *
2193  * S0/S3 Cycle without playback in progress
2194  * ----------------------------------------
2195  * Entering to S3,
2196  * 1. hdmi_codec_prepare() invoke the runtime resume of codec
2197  * 2. skl_runtime_resume() invoked
2198  * 3. hdac_hdmi_runtime_resume() powers up the display (refcount++ -> 1)
2199  * 4. skl_suspend() powers down the display (refcount-- -> 0)
2200  *
2201  * Wakeup from S3,
2202  * 1. skl_resume() powers up the display (refcount++ -> 1)
2203  * 2. hdmi_codec_complete() invokes the runtime suspend of codec
2204  * 3. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0)
2205  * 4. skl_runtime_suspend() invoked
2206  */
2207 static int hdac_hdmi_runtime_suspend(struct device *dev)
2208 {
2209         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2210         struct hdac_bus *bus = hdev->bus;
2211         struct hdac_ext_link *hlink = NULL;
2212
2213         dev_dbg(dev, "Enter: %s\n", __func__);
2214
2215         /* controller may not have been initialized for the first time */
2216         if (!bus)
2217                 return 0;
2218
2219         /*
2220          * Power down afg.
2221          * codec_read is preferred over codec_write to set the power state.
2222          * This way verb is send to set the power state and response
2223          * is received. So setting power state is ensured without using loop
2224          * to read the state.
2225          */
2226         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2227                                                         AC_PWRST_D3);
2228
2229         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2230         if (!hlink) {
2231                 dev_err(dev, "hdac link not found\n");
2232                 return -EIO;
2233         }
2234
2235         snd_hdac_ext_bus_link_put(bus, hlink);
2236
2237         snd_hdac_display_power(bus, hdev->addr, false);
2238
2239         return 0;
2240 }
2241
2242 static int hdac_hdmi_runtime_resume(struct device *dev)
2243 {
2244         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2245         struct hdac_bus *bus = hdev->bus;
2246         struct hdac_ext_link *hlink = NULL;
2247
2248         dev_dbg(dev, "Enter: %s\n", __func__);
2249
2250         /* controller may not have been initialized for the first time */
2251         if (!bus)
2252                 return 0;
2253
2254         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2255         if (!hlink) {
2256                 dev_err(dev, "hdac link not found\n");
2257                 return -EIO;
2258         }
2259
2260         snd_hdac_ext_bus_link_get(bus, hlink);
2261
2262         snd_hdac_display_power(bus, hdev->addr, true);
2263
2264         hdac_hdmi_skl_enable_all_pins(hdev);
2265         hdac_hdmi_skl_enable_dp12(hdev);
2266
2267         /* Power up afg */
2268         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2269                                                         AC_PWRST_D0);
2270
2271         return 0;
2272 }
2273 #else
2274 #define hdac_hdmi_runtime_suspend NULL
2275 #define hdac_hdmi_runtime_resume NULL
2276 #endif
2277
2278 static const struct dev_pm_ops hdac_hdmi_pm = {
2279         SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2280         .prepare = hdmi_codec_prepare,
2281         .complete = hdmi_codec_complete,
2282 };
2283
2284 static const struct hda_device_id hdmi_list[] = {
2285         HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2286         HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2287         HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2288         HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2289                                                    &intel_glk_drv_data),
2290         HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2291                                                    &intel_glk_drv_data),
2292         HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
2293                                                    &intel_icl_drv_data),
2294         {}
2295 };
2296
2297 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2298
2299 static struct hdac_driver hdmi_driver = {
2300         .driver = {
2301                 .name   = "HDMI HDA Codec",
2302                 .pm = &hdac_hdmi_pm,
2303         },
2304         .id_table       = hdmi_list,
2305         .probe          = hdac_hdmi_dev_probe,
2306         .remove         = hdac_hdmi_dev_remove,
2307 };
2308
2309 static int __init hdmi_init(void)
2310 {
2311         return snd_hda_ext_driver_register(&hdmi_driver);
2312 }
2313
2314 static void __exit hdmi_exit(void)
2315 {
2316         snd_hda_ext_driver_unregister(&hdmi_driver);
2317 }
2318
2319 module_init(hdmi_init);
2320 module_exit(hdmi_exit);
2321
2322 MODULE_LICENSE("GPL v2");
2323 MODULE_DESCRIPTION("HDMI HD codec");
2324 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2325 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");