sound/soc/codecs/hdac_hdmi.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
   4  *
   5  *  Copyright (C) 2014-2015 Intel Corp
   6  *  Author: Samreen Nilofer <samreen.nilofer@intel.com>
   7  *          Subhransu S. Prusty <subhransu.s.prusty@intel.com>
   8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   9  *
  10  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  11  */
  12 #include <linux/init.h>
  13 #include <linux/delay.h>
  14 #include <linux/module.h>
  15 #include <linux/pm_runtime.h>
  16 #include <linux/hdmi.h>
  17 #include <drm/drm_edid.h>
  18 #include <sound/pcm_params.h>
  19 #include <sound/jack.h>
  20 #include <sound/soc.h>
  21 #include <sound/hdaudio_ext.h>
  22 #include <sound/hda_i915.h>
  23 #include <sound/pcm_drm_eld.h>
  24 #include <sound/hda_chmap.h>
  25 #include "../../hda/local.h"
  26 #include "hdac_hdmi.h"
  27
  28 #define NAME_SIZE       32
  29
  30 #define AMP_OUT_MUTE            0xb080
  31 #define AMP_OUT_UNMUTE          0xb000
  32 #define PIN_OUT                 (AC_PINCTL_OUT_EN)
  33
  34 #define HDA_MAX_CONNECTIONS     32
  35
  36 #define HDA_MAX_CVTS            3
  37 #define HDA_MAX_PORTS           3
  38
  39 #define ELD_MAX_SIZE    256
  40 #define ELD_FIXED_BYTES 20
  41
  42 #define ELD_VER_CEA_861D 2
  43 #define ELD_VER_PARTIAL 31
  44 #define ELD_MAX_MNL     16
  45
  46 struct hdac_hdmi_cvt_params {
  47         unsigned int channels_min;
  48         unsigned int channels_max;
  49         u32 rates;
  50         u64 formats;
  51         unsigned int maxbps;
  52 };
  53
  54 struct hdac_hdmi_cvt {
  55         struct list_head head;
  56         hda_nid_t nid;
  57         const char *name;
  58         struct hdac_hdmi_cvt_params params;
  59 };
  60
  61 /* Currently only spk_alloc, more to be added */
  62 struct hdac_hdmi_parsed_eld {
  63         u8 spk_alloc;
  64 };
  65
  66 struct hdac_hdmi_eld {
  67         bool    monitor_present;
  68         bool    eld_valid;
  69         int     eld_size;
  70         char    eld_buffer[ELD_MAX_SIZE];
  71         struct  hdac_hdmi_parsed_eld info;
  72 };
  73
  74 struct hdac_hdmi_pin {
  75         struct list_head head;
  76         hda_nid_t nid;
  77         bool mst_capable;
  78         struct hdac_hdmi_port *ports;
  79         int num_ports;
  80         struct hdac_device *hdev;
  81 };
  82
  83 struct hdac_hdmi_port {
  84         struct list_head head;
  85         int id;
  86         struct hdac_hdmi_pin *pin;
  87         int num_mux_nids;
  88         hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
  89         struct hdac_hdmi_eld eld;
  90         const char *jack_pin;
  91         struct snd_soc_dapm_context *dapm;
  92         const char *output_pin;
  93 };
  94
  95 struct hdac_hdmi_pcm {
  96         struct list_head head;
  97         int pcm_id;
  98         struct list_head port_list;
  99         struct hdac_hdmi_cvt *cvt;
 100         struct snd_soc_jack *jack;
 101         int stream_tag;
 102         int channels;
 103         int format;
 104         bool chmap_set;
 105         unsigned char chmap[8]; /* ALSA API channel-map */
 106         struct mutex lock;
 107         int jack_event;
 108 };
 109
 110 struct hdac_hdmi_dai_port_map {
 111         int dai_id;
 112         struct hdac_hdmi_port *port;
 113         struct hdac_hdmi_cvt *cvt;
 114 };
 115
 116 /*
 117  * pin to port mapping table where the value indicate the pin number and
 118  * the index indicate the port number with 1 base.
 119  */
 120 static const int icl_pin2port_map[] = {0x4, 0x6, 0x8, 0xa, 0xb};
 121
 122 struct hdac_hdmi_drv_data {
 123         unsigned int vendor_nid;
 124         const int *port_map; /* pin to port mapping table */
 125         int port_num;
 126 };
 127
 128 struct hdac_hdmi_priv {
 129         struct hdac_device *hdev;
 130         struct snd_soc_component *component;
 131         struct snd_card *card;
 132         struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
 133         struct list_head pin_list;
 134         struct list_head cvt_list;
 135         struct list_head pcm_list;
 136         int num_pin;
 137         int num_cvt;
 138         int num_ports;
 139         struct mutex pin_mutex;
 140         struct hdac_chmap chmap;
 141         struct hdac_hdmi_drv_data *drv_data;
 142         struct snd_soc_dai_driver *dai_drv;
 143 };
 144
 145 #define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
 146
 147 static struct hdac_hdmi_pcm *
 148 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
 149                            struct hdac_hdmi_cvt *cvt)
 150 {
 151         struct hdac_hdmi_pcm *pcm = NULL;
 152
 153         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 154                 if (pcm->cvt == cvt)
 155                         break;
 156         }
 157
 158         return pcm;
 159 }
 160
 161 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
 162                 struct hdac_hdmi_port *port, bool is_connect)
 163 {
 164         struct hdac_device *hdev = port->pin->hdev;
 165
 166         if (is_connect)
 167                 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
 168         else
 169                 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
 170
 171         if (is_connect) {
 172                 /*
 173                  * Report Jack connect event when a device is connected
 174                  * for the first time where same PCM is attached to multiple
 175                  * ports.
 176                  */
 177                 if (pcm->jack_event == 0) {
 178                         dev_dbg(&hdev->dev,
 179                                         "jack report for pcm=%d\n",
 180                                         pcm->pcm_id);
 181                         snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
 182                                                 SND_JACK_AVOUT);
 183                 }
 184                 pcm->jack_event++;
 185         } else {
 186                 /*
 187                  * Report Jack disconnect event when a device is disconnected
 188                  * is the only last connected device when same PCM is attached
 189                  * to multiple ports.
 190                  */
 191                 if (pcm->jack_event == 1)
 192                         snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
 193                 if (pcm->jack_event > 0)
 194                         pcm->jack_event--;
 195         }
 196
 197         snd_soc_dapm_sync(port->dapm);
 198 }
 199
 200 /* MST supported verbs */
 201 /*
 202  * Get the no devices that can be connected to a port on the Pin widget.
 203  */
 204 static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
 205 {
 206         unsigned int caps;
 207         unsigned int type, param;
 208
 209         caps = get_wcaps(hdev, nid);
 210         type = get_wcaps_type(caps);
 211
 212         if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
 213                 return 0;
 214
 215         param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
 216         if (param == -1)
 217                 return param;
 218
 219         return param & AC_DEV_LIST_LEN_MASK;
 220 }
 221
 222 /*
 223  * Get the port entry select on the pin. Return the port entry
 224  * id selected on the pin. Return 0 means the first port entry
 225  * is selected or MST is not supported.
 226  */
 227 static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
 228                                         struct hdac_hdmi_port *port)
 229 {
 230         return snd_hdac_codec_read(hdev, port->pin->nid,
 231                                 0, AC_VERB_GET_DEVICE_SEL, 0);
 232 }
 233
 234 /*
 235  * Sets the selected port entry for the configuring Pin widget verb.
 236  * returns error if port set is not equal to port get otherwise success
 237  */
 238 static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
 239                                         struct hdac_hdmi_port *port)
 240 {
 241         int num_ports;
 242
 243         if (!port->pin->mst_capable)
 244                 return 0;
 245
 246         /* AC_PAR_DEVLIST_LEN is 0 based. */
 247         num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
 248         if (num_ports < 0)
 249                 return -EIO;
 250         /*
 251          * Device List Length is a 0 based integer value indicating the
 252          * number of sink device that a MST Pin Widget can support.
 253          */
 254         if (num_ports + 1  < port->id)
 255                 return 0;
 256
 257         snd_hdac_codec_write(hdev, port->pin->nid, 0,
 258                         AC_VERB_SET_DEVICE_SEL, port->id);
 259
 260         if (port->id != hdac_hdmi_port_select_get(hdev, port))
 261                 return -EIO;
 262
 263         dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
 264
 265         return 0;
 266 }
 267
 268 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
 269                                                 int pcm_idx)
 270 {
 271         struct hdac_hdmi_pcm *pcm;
 272
 273         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 274                 if (pcm->pcm_id == pcm_idx)
 275                         return pcm;
 276         }
 277
 278         return NULL;
 279 }
 280
 281 static unsigned int sad_format(const u8 *sad)
 282 {
 283         return ((sad[0] >> 0x3) & 0x1f);
 284 }
 285
 286 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
 287 {
 288         return (sad[2] & 7);
 289 }
 290
 291 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
 292                                                 void *eld)
 293 {
 294         u64 formats = SNDRV_PCM_FMTBIT_S16;
 295         int i;
 296         const u8 *sad, *eld_buf = eld;
 297
 298         sad = drm_eld_sad(eld_buf);
 299         if (!sad)
 300                 goto format_constraint;
 301
 302         for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
 303                 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
 304
 305                         /*
 306                          * the controller support 20 and 24 bits in 32 bit
 307                          * container so we set S32
 308                          */
 309                         if (sad_sample_bits_lpcm(sad) & 0x6)
 310                                 formats |= SNDRV_PCM_FMTBIT_S32;
 311                 }
 312         }
 313
 314 format_constraint:
 315         return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
 316                                 formats);
 317
 318 }
 319
 320 static void
 321 hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
 322                                 int packet_index, int byte_index)
 323 {
 324         int val;
 325
 326         val = (packet_index << 5) | (byte_index & 0x1f);
 327         snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
 328 }
 329
 330 struct dp_audio_infoframe {
 331         u8 type; /* 0x84 */
 332         u8 len;  /* 0x1b */
 333         u8 ver;  /* 0x11 << 2 */
 334
 335         u8 CC02_CT47;   /* match with HDMI infoframe from this on */
 336         u8 SS01_SF24;
 337         u8 CXT04;
 338         u8 CA;
 339         u8 LFEPBL01_LSV36_DM_INH7;
 340 };
 341
 342 static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev,
 343                    struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
 344 {
 345         uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
 346         struct hdmi_audio_infoframe frame;
 347         struct hdac_hdmi_pin *pin = port->pin;
 348         struct dp_audio_infoframe dp_ai;
 349         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 350         struct hdac_hdmi_cvt *cvt = pcm->cvt;
 351         u8 *dip;
 352         int ret;
 353         int i;
 354         const u8 *eld_buf;
 355         u8 conn_type;
 356         int channels, ca;
 357
 358         ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc,
 359                         pcm->channels, pcm->chmap_set, true, pcm->chmap);
 360
 361         channels = snd_hdac_get_active_channels(ca);
 362         hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels);
 363
 364         snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
 365                                 pcm->channels, pcm->chmap, pcm->chmap_set);
 366
 367         eld_buf = port->eld.eld_buffer;
 368         conn_type = drm_eld_get_conn_type(eld_buf);
 369
 370         switch (conn_type) {
 371         case DRM_ELD_CONN_TYPE_HDMI:
 372                 hdmi_audio_infoframe_init(&frame);
 373
 374                 frame.channels = channels;
 375                 frame.channel_allocation = ca;
 376
 377                 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
 378                 if (ret < 0)
 379                         return ret;
 380
 381                 break;
 382
 383         case DRM_ELD_CONN_TYPE_DP:
 384                 memset(&dp_ai, 0, sizeof(dp_ai));
 385                 dp_ai.type      = 0x84;
 386                 dp_ai.len       = 0x1b;
 387                 dp_ai.ver       = 0x11 << 2;
 388                 dp_ai.CC02_CT47 = channels - 1;
 389                 dp_ai.CA        = ca;
 390
 391                 dip = (u8 *)&dp_ai;
 392                 break;
 393
 394         default:
 395                 dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type);
 396                 return -EIO;
 397         }
 398
 399         /* stop infoframe transmission */
 400         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 401         snd_hdac_codec_write(hdev, pin->nid, 0,
 402                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
 403
 404
 405         /*  Fill infoframe. Index auto-incremented */
 406         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 407         if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
 408                 for (i = 0; i < sizeof(buffer); i++)
 409                         snd_hdac_codec_write(hdev, pin->nid, 0,
 410                                 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
 411         } else {
 412                 for (i = 0; i < sizeof(dp_ai); i++)
 413                         snd_hdac_codec_write(hdev, pin->nid, 0,
 414                                 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
 415         }
 416
 417         /* Start infoframe */
 418         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 419         snd_hdac_codec_write(hdev, pin->nid, 0,
 420                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
 421
 422         return 0;
 423 }
 424
 425 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
 426                 unsigned int tx_mask, unsigned int rx_mask,
 427                 int slots, int slot_width)
 428 {
 429         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 430         struct hdac_device *hdev = hdmi->hdev;
 431         struct hdac_hdmi_dai_port_map *dai_map;
 432         struct hdac_hdmi_pcm *pcm;
 433
 434         dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, tx_mask);
 435
 436         dai_map = &hdmi->dai_map[dai->id];
 437
 438         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 439
 440         if (pcm)
 441                 pcm->stream_tag = (tx_mask << 4);
 442
 443         return 0;
 444 }
 445
 446 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
 447         struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
 448 {
 449         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 450         struct hdac_hdmi_dai_port_map *dai_map;
 451         struct hdac_hdmi_pcm *pcm;
 452         int format;
 453
 454         dai_map = &hdmi->dai_map[dai->id];
 455
 456         format = snd_hdac_calc_stream_format(params_rate(hparams),
 457                         params_channels(hparams), params_format(hparams),
 458                         dai->driver->playback.sig_bits, 0);
 459
 460         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 461         if (!pcm)
 462                 return -EIO;
 463
 464         pcm->format = format;
 465         pcm->channels = params_channels(hparams);
 466
 467         return 0;
 468 }
 469
 470 static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
 471                                         struct hdac_hdmi_pin *pin,
 472                                         struct hdac_hdmi_port *port)
 473 {
 474         if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
 475                 dev_warn(&hdev->dev,
 476                         "HDMI: pin %d wcaps %#x does not support connection list\n",
 477                         pin->nid, get_wcaps(hdev, pin->nid));
 478                 return -EINVAL;
 479         }
 480
 481         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 482                 return -EIO;
 483
 484         port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
 485                         port->mux_nids, HDA_MAX_CONNECTIONS);
 486         if (port->num_mux_nids == 0)
 487                 dev_warn(&hdev->dev,
 488                         "No connections found for pin:port %d:%d\n",
 489                                                 pin->nid, port->id);
 490
 491         dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
 492                         port->num_mux_nids, pin->nid, port->id);
 493
 494         return port->num_mux_nids;
 495 }
 496
 497 /*
 498  * Query pcm list and return port to which stream is routed.
 499  *
 500  * Also query connection list of the pin, to validate the cvt to port map.
 501  *
 502  * Same stream rendering to multiple ports simultaneously can be done
 503  * possibly, but not supported for now in driver. So return the first port
 504  * connected.
 505  */
 506 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
 507                         struct hdac_device *hdev,
 508                         struct hdac_hdmi_priv *hdmi,
 509                         struct hdac_hdmi_cvt *cvt)
 510 {
 511         struct hdac_hdmi_pcm *pcm;
 512         struct hdac_hdmi_port *port = NULL;
 513         int ret, i;
 514
 515         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 516                 if (pcm->cvt == cvt) {
 517                         if (list_empty(&pcm->port_list))
 518                                 continue;
 519
 520                         list_for_each_entry(port, &pcm->port_list, head) {
 521                                 mutex_lock(&pcm->lock);
 522                                 ret = hdac_hdmi_query_port_connlist(hdev,
 523                                                         port->pin, port);
 524                                 mutex_unlock(&pcm->lock);
 525                                 if (ret < 0)
 526                                         continue;
 527
 528                                 for (i = 0; i < port->num_mux_nids; i++) {
 529                                         if (port->mux_nids[i] == cvt->nid &&
 530                                                 port->eld.monitor_present &&
 531                                                 port->eld.eld_valid)
 532                                                 return port;
 533                                 }
 534                         }
 535                 }
 536         }
 537
 538         return NULL;
 539 }
 540
 541 /*
 542  * This tries to get a valid pin and set the HW constraints based on the
 543  * ELD. Even if a valid pin is not found return success so that device open
 544  * doesn't fail.
 545  */
 546 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
 547                         struct snd_soc_dai *dai)
 548 {
 549         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 550         struct hdac_device *hdev = hdmi->hdev;
 551         struct hdac_hdmi_dai_port_map *dai_map;
 552         struct hdac_hdmi_cvt *cvt;
 553         struct hdac_hdmi_port *port;
 554         int ret;
 555
 556         dai_map = &hdmi->dai_map[dai->id];
 557
 558         cvt = dai_map->cvt;
 559         port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
 560
 561         /*
 562          * To make PA and other userland happy.
 563          * userland scans devices so returning error does not help.
 564          */
 565         if (!port)
 566                 return 0;
 567         if ((!port->eld.monitor_present) ||
 568                         (!port->eld.eld_valid)) {
 569
 570                 dev_warn(&hdev->dev,
 571                         "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
 572                         port->eld.monitor_present, port->eld.eld_valid,
 573                         port->pin->nid, port->id);
 574
 575                 return 0;
 576         }
 577
 578         dai_map->port = port;
 579
 580         ret = hdac_hdmi_eld_limit_formats(substream->runtime,
 581                                 port->eld.eld_buffer);
 582         if (ret < 0)
 583                 return ret;
 584
 585         return snd_pcm_hw_constraint_eld(substream->runtime,
 586                                 port->eld.eld_buffer);
 587 }
 588
 589 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
 590                 struct snd_soc_dai *dai)
 591 {
 592         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 593         struct hdac_hdmi_dai_port_map *dai_map;
 594         struct hdac_hdmi_pcm *pcm;
 595
 596         dai_map = &hdmi->dai_map[dai->id];
 597
 598         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 599
 600         if (pcm) {
 601                 mutex_lock(&pcm->lock);
 602                 pcm->chmap_set = false;
 603                 memset(pcm->chmap, 0, sizeof(pcm->chmap));
 604                 pcm->channels = 0;
 605                 mutex_unlock(&pcm->lock);
 606         }
 607
 608         if (dai_map->port)
 609                 dai_map->port = NULL;
 610 }
 611
 612 static int
 613 hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt)
 614 {
 615         unsigned int chans;
 616         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 617         int err;
 618
 619         chans = get_wcaps(hdev, cvt->nid);
 620         chans = get_wcaps_channels(chans);
 621
 622         cvt->params.channels_min = 2;
 623
 624         cvt->params.channels_max = chans;
 625         if (chans > hdmi->chmap.channels_max)
 626                 hdmi->chmap.channels_max = chans;
 627
 628         err = snd_hdac_query_supported_pcm(hdev, cvt->nid,
 629                         &cvt->params.rates,
 630                         &cvt->params.formats,
 631                         &cvt->params.maxbps);
 632         if (err < 0)
 633                 dev_err(&hdev->dev,
 634                         "Failed to query pcm params for nid %d: %d\n",
 635                         cvt->nid, err);
 636
 637         return err;
 638 }
 639
 640 static int hdac_hdmi_fill_widget_info(struct device *dev,
 641                 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
 642                 void *priv, const char *wname, const char *stream,
 643                 struct snd_kcontrol_new *wc, int numkc,
 644                 int (*event)(struct snd_soc_dapm_widget *,
 645                 struct snd_kcontrol *, int), unsigned short event_flags)
 646 {
 647         w->id = id;
 648         w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
 649         if (!w->name)
 650                 return -ENOMEM;
 651
 652         w->sname = stream;
 653         w->reg = SND_SOC_NOPM;
 654         w->shift = 0;
 655         w->kcontrol_news = wc;
 656         w->num_kcontrols = numkc;
 657         w->priv = priv;
 658         w->event = event;
 659         w->event_flags = event_flags;
 660
 661         return 0;
 662 }
 663
 664 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
 665                 const char *sink, const char *control, const char *src,
 666                 int (*handler)(struct snd_soc_dapm_widget *src,
 667                         struct snd_soc_dapm_widget *sink))
 668 {
 669         route->sink = sink;
 670         route->source = src;
 671         route->control = control;
 672         route->connected = handler;
 673 }
 674
 675 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
 676                                         struct hdac_hdmi_port *port)
 677 {
 678         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 679         struct hdac_hdmi_pcm *pcm = NULL;
 680         struct hdac_hdmi_port *p;
 681
 682         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 683                 if (list_empty(&pcm->port_list))
 684                         continue;
 685
 686                 list_for_each_entry(p, &pcm->port_list, head) {
 687                         if (p->id == port->id && port->pin == p->pin)
 688                                 return pcm;
 689                 }
 690         }
 691
 692         return NULL;
 693 }
 694
 695 static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
 696                              hda_nid_t nid, unsigned int pwr_state)
 697 {
 698         int count;
 699         unsigned int state;
 700
 701         if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
 702                 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
 703                         for (count = 0; count < 10; count++) {
 704                                 snd_hdac_codec_read(hdev, nid, 0,
 705                                                 AC_VERB_SET_POWER_STATE,
 706                                                 pwr_state);
 707                                 state = snd_hdac_sync_power_state(hdev,
 708                                                 nid, pwr_state);
 709                                 if (!(state & AC_PWRST_ERROR))
 710                                         break;
 711                         }
 712                 }
 713         }
 714 }
 715
 716 static void hdac_hdmi_set_amp(struct hdac_device *hdev,
 717                                    hda_nid_t nid, int val)
 718 {
 719         if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
 720                 snd_hdac_codec_write(hdev, nid, 0,
 721                                         AC_VERB_SET_AMP_GAIN_MUTE, val);
 722 }
 723
 724
 725 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
 726                                         struct snd_kcontrol *kc, int event)
 727 {
 728         struct hdac_hdmi_port *port = w->priv;
 729         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 730         struct hdac_hdmi_pcm *pcm;
 731
 732         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 733                         __func__, w->name, event);
 734
 735         pcm = hdac_hdmi_get_pcm(hdev, port);
 736         if (!pcm)
 737                 return -EIO;
 738
 739         /* set the device if pin is mst_capable */
 740         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 741                 return -EIO;
 742
 743         switch (event) {
 744         case SND_SOC_DAPM_PRE_PMU:
 745                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
 746
 747                 /* Enable out path for this pin widget */
 748                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 749                                 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
 750
 751                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
 752
 753                 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
 754
 755         case SND_SOC_DAPM_POST_PMD:
 756                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
 757
 758                 /* Disable out path for this pin widget */
 759                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 760                                 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
 761
 762                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
 763                 break;
 764
 765         }
 766
 767         return 0;
 768 }
 769
 770 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
 771                                         struct snd_kcontrol *kc, int event)
 772 {
 773         struct hdac_hdmi_cvt *cvt = w->priv;
 774         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 775         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 776         struct hdac_hdmi_pcm *pcm;
 777
 778         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 779                         __func__, w->name, event);
 780
 781         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
 782         if (!pcm)
 783                 return -EIO;
 784
 785         switch (event) {
 786         case SND_SOC_DAPM_PRE_PMU:
 787                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
 788
 789                 /* Enable transmission */
 790                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 791                         AC_VERB_SET_DIGI_CONVERT_1, 1);
 792
 793                 /* Category Code (CC) to zero */
 794                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 795                         AC_VERB_SET_DIGI_CONVERT_2, 0);
 796
 797                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 798                                 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
 799                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 800                                 AC_VERB_SET_STREAM_FORMAT, pcm->format);
 801                 break;
 802
 803         case SND_SOC_DAPM_POST_PMD:
 804                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 805                                 AC_VERB_SET_CHANNEL_STREAMID, 0);
 806                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 807                                 AC_VERB_SET_STREAM_FORMAT, 0);
 808
 809                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
 810                 break;
 811
 812         }
 813
 814         return 0;
 815 }
 816
 817 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
 818                                         struct snd_kcontrol *kc, int event)
 819 {
 820         struct hdac_hdmi_port *port = w->priv;
 821         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 822         int mux_idx;
 823
 824         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 825                         __func__, w->name, event);
 826
 827         if (!kc)
 828                 kc  = w->kcontrols[0];
 829
 830         mux_idx = dapm_kcontrol_get_value(kc);
 831
 832         /* set the device if pin is mst_capable */
 833         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 834                 return -EIO;
 835
 836         if (mux_idx > 0) {
 837                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 838                         AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
 839         }
 840
 841         return 0;
 842 }
 843
 844 /*
 845  * Based on user selection, map the PINs with the PCMs.
 846  */
 847 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
 848                 struct snd_ctl_elem_value *ucontrol)
 849 {
 850         int ret;
 851         struct hdac_hdmi_port *p, *p_next;
 852         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 853         struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
 854         struct snd_soc_dapm_context *dapm = w->dapm;
 855         struct hdac_hdmi_port *port = w->priv;
 856         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
 857         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 858         struct hdac_hdmi_pcm *pcm = NULL;
 859         const char *cvt_name =  e->texts[ucontrol->value.enumerated.item[0]];
 860
 861         ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
 862         if (ret < 0)
 863                 return ret;
 864
 865         if (port == NULL)
 866                 return -EINVAL;
 867
 868         mutex_lock(&hdmi->pin_mutex);
 869         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 870                 if (list_empty(&pcm->port_list))
 871                         continue;
 872
 873                 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
 874                         if (p == port && p->id == port->id &&
 875                                         p->pin == port->pin) {
 876                                 hdac_hdmi_jack_report(pcm, port, false);
 877                                 list_del(&p->head);
 878                         }
 879                 }
 880         }
 881
 882         /*
 883          * Jack status is not reported during device probe as the
 884          * PCMs are not registered by then. So report it here.
 885          */
 886         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 887                 if (!strcmp(cvt_name, pcm->cvt->name)) {
 888                         list_add_tail(&port->head, &pcm->port_list);
 889                         if (port->eld.monitor_present && port->eld.eld_valid) {
 890                                 hdac_hdmi_jack_report(pcm, port, true);
 891                                 mutex_unlock(&hdmi->pin_mutex);
 892                                 return ret;
 893                         }
 894                 }
 895         }
 896         mutex_unlock(&hdmi->pin_mutex);
 897
 898         return ret;
 899 }
 900
 901 /*
 902  * Ideally the Mux inputs should be based on the num_muxs enumerated, but
 903  * the display driver seem to be programming the connection list for the pin
 904  * widget runtime.
 905  *
 906  * So programming all the possible inputs for the mux, the user has to take
 907  * care of selecting the right one and leaving all other inputs selected to
 908  * "NONE"
 909  */
 910 static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
 911                                 struct hdac_hdmi_port *port,
 912                                 struct snd_soc_dapm_widget *widget,
 913                                 const char *widget_name)
 914 {
 915         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 916         struct hdac_hdmi_pin *pin = port->pin;
 917         struct snd_kcontrol_new *kc;
 918         struct hdac_hdmi_cvt *cvt;
 919         struct soc_enum *se;
 920         char kc_name[NAME_SIZE];
 921         char mux_items[NAME_SIZE];
 922         /* To hold inputs to the Pin mux */
 923         char *items[HDA_MAX_CONNECTIONS];
 924         int i = 0;
 925         int num_items = hdmi->num_cvt + 1;
 926
 927         kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
 928         if (!kc)
 929                 return -ENOMEM;
 930
 931         se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
 932         if (!se)
 933                 return -ENOMEM;
 934
 935         snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
 936                                                 pin->nid, port->id);
 937         kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
 938         if (!kc->name)
 939                 return -ENOMEM;
 940
 941         kc->private_value = (long)se;
 942         kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 943         kc->access = 0;
 944         kc->info = snd_soc_info_enum_double;
 945         kc->put = hdac_hdmi_set_pin_port_mux;
 946         kc->get = snd_soc_dapm_get_enum_double;
 947
 948         se->reg = SND_SOC_NOPM;
 949
 950         /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
 951         se->items = num_items;
 952         se->mask = roundup_pow_of_two(se->items) - 1;
 953
 954         sprintf(mux_items, "NONE");
 955         items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
 956         if (!items[i])
 957                 return -ENOMEM;
 958
 959         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
 960                 i++;
 961                 sprintf(mux_items, "cvt %d", cvt->nid);
 962                 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
 963                 if (!items[i])
 964                         return -ENOMEM;
 965         }
 966
 967         se->texts = devm_kmemdup(&hdev->dev, items,
 968                         (num_items  * sizeof(char *)), GFP_KERNEL);
 969         if (!se->texts)
 970                 return -ENOMEM;
 971
 972         return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
 973                         snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
 974                         hdac_hdmi_pin_mux_widget_event,
 975                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
 976 }
 977
 978 /* Add cvt <- input <- mux route map */
 979 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
 980                         struct snd_soc_dapm_widget *widgets,
 981                         struct snd_soc_dapm_route *route, int rindex)
 982 {
 983         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 984         const struct snd_kcontrol_new *kc;
 985         struct soc_enum *se;
 986         int mux_index = hdmi->num_cvt + hdmi->num_ports;
 987         int i, j;
 988
 989         for (i = 0; i < hdmi->num_ports; i++) {
 990                 kc = widgets[mux_index].kcontrol_news;
 991                 se = (struct soc_enum *)kc->private_value;
 992                 for (j = 0; j < hdmi->num_cvt; j++) {
 993                         hdac_hdmi_fill_route(&route[rindex],
 994                                         widgets[mux_index].name,
 995                                         se->texts[j + 1],
 996                                         widgets[j].name, NULL);
 997
 998                         rindex++;
 999                 }
1000
1001                 mux_index++;
1002         }
1003 }
1004
1005 /*
1006  * Widgets are added in the below sequence
1007  *      Converter widgets for num converters enumerated
1008  *      Pin-port widgets for num ports for Pins enumerated
1009  *      Pin-port mux widgets to represent connenction list of pin widget
1010  *
1011  * For each port, one Mux and One output widget is added
1012  * Total widgets elements = num_cvt + (num_ports * 2);
1013  *
1014  * Routes are added as below:
1015  *      pin-port mux -> pin (based on num_ports)
1016  *      cvt -> "Input sel control" -> pin-port_mux
1017  *
1018  * Total route elements:
1019  *      num_ports + (pin_muxes * num_cvt)
1020  */
1021 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1022 {
1023         struct snd_soc_dapm_widget *widgets;
1024         struct snd_soc_dapm_route *route;
1025         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
1026         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1027         struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
1028         char widget_name[NAME_SIZE];
1029         struct hdac_hdmi_cvt *cvt;
1030         struct hdac_hdmi_pin *pin;
1031         int ret, i = 0, num_routes = 0, j;
1032
1033         if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1034                 return -EINVAL;
1035
1036         widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1037                                 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1038                                 GFP_KERNEL);
1039
1040         if (!widgets)
1041                 return -ENOMEM;
1042
1043         /* DAPM widgets to represent each converter widget */
1044         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1045                 sprintf(widget_name, "Converter %d", cvt->nid);
1046                 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1047                         snd_soc_dapm_aif_in, cvt,
1048                         widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1049                         hdac_hdmi_cvt_output_widget_event,
1050                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1051                 if (ret < 0)
1052                         return ret;
1053                 i++;
1054         }
1055
1056         list_for_each_entry(pin, &hdmi->pin_list, head) {
1057                 for (j = 0; j < pin->num_ports; j++) {
1058                         sprintf(widget_name, "hif%d-%d Output",
1059                                 pin->nid, pin->ports[j].id);
1060                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1061                                         snd_soc_dapm_output, &pin->ports[j],
1062                                         widget_name, NULL, NULL, 0,
1063                                         hdac_hdmi_pin_output_widget_event,
1064                                         SND_SOC_DAPM_PRE_PMU |
1065                                         SND_SOC_DAPM_POST_PMD);
1066                         if (ret < 0)
1067                                 return ret;
1068                         pin->ports[j].output_pin = widgets[i].name;
1069                         i++;
1070                 }
1071         }
1072
1073         /* DAPM widgets to represent the connection list to pin widget */
1074         list_for_each_entry(pin, &hdmi->pin_list, head) {
1075                 for (j = 0; j < pin->num_ports; j++) {
1076                         sprintf(widget_name, "Pin%d-Port%d Mux",
1077                                 pin->nid, pin->ports[j].id);
1078                         ret = hdac_hdmi_create_pin_port_muxs(hdev,
1079                                                 &pin->ports[j], &widgets[i],
1080                                                 widget_name);
1081                         if (ret < 0)
1082                                 return ret;
1083                         i++;
1084
1085                         /* For cvt to pin_mux mapping */
1086                         num_routes += hdmi->num_cvt;
1087
1088                         /* For pin_mux to pin mapping */
1089                         num_routes++;
1090                 }
1091         }
1092
1093         route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1094                                                         GFP_KERNEL);
1095         if (!route)
1096                 return -ENOMEM;
1097
1098         i = 0;
1099         /* Add pin <- NULL <- mux route map */
1100         list_for_each_entry(pin, &hdmi->pin_list, head) {
1101                 for (j = 0; j < pin->num_ports; j++) {
1102                         int sink_index = i + hdmi->num_cvt;
1103                         int src_index = sink_index + pin->num_ports *
1104                                                 hdmi->num_pin;
1105
1106                         hdac_hdmi_fill_route(&route[i],
1107                                 widgets[sink_index].name, NULL,
1108                                 widgets[src_index].name, NULL);
1109                         i++;
1110                 }
1111         }
1112
1113         hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
1114
1115         snd_soc_dapm_new_controls(dapm, widgets,
1116                 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1117
1118         snd_soc_dapm_add_routes(dapm, route, num_routes);
1119         snd_soc_dapm_new_widgets(dapm->card);
1120
1121         return 0;
1122
1123 }
1124
1125 static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
1126 {
1127         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1128         struct hdac_hdmi_dai_port_map *dai_map;
1129         struct hdac_hdmi_cvt *cvt;
1130         int dai_id = 0;
1131
1132         if (list_empty(&hdmi->cvt_list))
1133                 return -EINVAL;
1134
1135         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1136                 dai_map = &hdmi->dai_map[dai_id];
1137                 dai_map->dai_id = dai_id;
1138                 dai_map->cvt = cvt;
1139
1140                 dai_id++;
1141
1142                 if (dai_id == HDA_MAX_CVTS) {
1143                         dev_warn(&hdev->dev,
1144                                 "Max dais supported: %d\n", dai_id);
1145                         break;
1146                 }
1147         }
1148
1149         return 0;
1150 }
1151
1152 static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
1153 {
1154         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1155         struct hdac_hdmi_cvt *cvt;
1156         char name[NAME_SIZE];
1157
1158         cvt = devm_kzalloc(&hdev->dev, sizeof(*cvt), GFP_KERNEL);
1159         if (!cvt)
1160                 return -ENOMEM;
1161
1162         cvt->nid = nid;
1163         sprintf(name, "cvt %d", cvt->nid);
1164         cvt->name = devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1165         if (!cvt->name)
1166                 return -ENOMEM;
1167
1168         list_add_tail(&cvt->head, &hdmi->cvt_list);
1169         hdmi->num_cvt++;
1170
1171         return hdac_hdmi_query_cvt_params(hdev, cvt);
1172 }
1173
1174 static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
1175                         struct hdac_hdmi_port *port)
1176 {
1177         unsigned int ver, mnl;
1178
1179         ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1180                                                 >> DRM_ELD_VER_SHIFT;
1181
1182         if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1183                 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
1184                 return -EINVAL;
1185         }
1186
1187         mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1188                 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1189
1190         if (mnl > ELD_MAX_MNL) {
1191                 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
1192                 return -EINVAL;
1193         }
1194
1195         port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1196
1197         return 0;
1198 }
1199
1200 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1201                                     struct hdac_hdmi_port *port)
1202 {
1203         struct hdac_device *hdev = pin->hdev;
1204         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1205         struct hdac_hdmi_pcm *pcm;
1206         int size = 0;
1207         int port_id = -1;
1208
1209         if (!hdmi)
1210                 return;
1211
1212         /*
1213          * In case of non MST pin, get_eld info API expectes port
1214          * to be -1.
1215          */
1216         mutex_lock(&hdmi->pin_mutex);
1217         port->eld.monitor_present = false;
1218
1219         if (pin->mst_capable)
1220                 port_id = port->id;
1221
1222         size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1223                                 &port->eld.monitor_present,
1224                                 port->eld.eld_buffer,
1225                                 ELD_MAX_SIZE);
1226
1227         if (size > 0) {
1228                 size = min(size, ELD_MAX_SIZE);
1229                 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1230                         size = -EINVAL;
1231         }
1232
1233         if (size > 0) {
1234                 port->eld.eld_valid = true;
1235                 port->eld.eld_size = size;
1236         } else {
1237                 port->eld.eld_valid = false;
1238                 port->eld.eld_size = 0;
1239         }
1240
1241         pcm = hdac_hdmi_get_pcm(hdev, port);
1242
1243         if (!port->eld.monitor_present || !port->eld.eld_valid) {
1244
1245                 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1246                                                 __func__, pin->nid, port->id);
1247
1248                 /*
1249                  * PCMs are not registered during device probe, so don't
1250                  * report jack here. It will be done in usermode mux
1251                  * control select.
1252                  */
1253                 if (pcm)
1254                         hdac_hdmi_jack_report(pcm, port, false);
1255
1256                 mutex_unlock(&hdmi->pin_mutex);
1257                 return;
1258         }
1259
1260         if (port->eld.monitor_present && port->eld.eld_valid) {
1261                 if (pcm)
1262                         hdac_hdmi_jack_report(pcm, port, true);
1263
1264                 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1265                           port->eld.eld_buffer, port->eld.eld_size, false);
1266
1267         }
1268         mutex_unlock(&hdmi->pin_mutex);
1269 }
1270
1271 static int hdac_hdmi_add_ports(struct hdac_device *hdev,
1272                                struct hdac_hdmi_pin *pin)
1273 {
1274         struct hdac_hdmi_port *ports;
1275         int max_ports = HDA_MAX_PORTS;
1276         int i;
1277
1278         /*
1279          * FIXME: max_port may vary for each platform, so pass this as
1280          * as driver data or query from i915 interface when this API is
1281          * implemented.
1282          */
1283
1284         ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL);
1285         if (!ports)
1286                 return -ENOMEM;
1287
1288         for (i = 0; i < max_ports; i++) {
1289                 ports[i].id = i;
1290                 ports[i].pin = pin;
1291         }
1292         pin->ports = ports;
1293         pin->num_ports = max_ports;
1294         return 0;
1295 }
1296
1297 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1298 {
1299         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1300         struct hdac_hdmi_pin *pin;
1301         int ret;
1302
1303         pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL);
1304         if (!pin)
1305                 return -ENOMEM;
1306
1307         pin->nid = nid;
1308         pin->mst_capable = false;
1309         pin->hdev = hdev;
1310         ret = hdac_hdmi_add_ports(hdev, pin);
1311         if (ret < 0)
1312                 return ret;
1313
1314         list_add_tail(&pin->head, &hdmi->pin_list);
1315         hdmi->num_pin++;
1316         hdmi->num_ports += pin->num_ports;
1317
1318         return 0;
1319 }
1320
1321 #define INTEL_VENDOR_NID_0x2 0x02
1322 #define INTEL_VENDOR_NID_0x8 0x08
1323 #define INTEL_VENDOR_NID_0xb 0x0b
1324 #define INTEL_GET_VENDOR_VERB 0xf81
1325 #define INTEL_SET_VENDOR_VERB 0x781
1326 #define INTEL_EN_DP12           0x02 /* enable DP 1.2 features */
1327 #define INTEL_EN_ALL_PIN_CVTS   0x01 /* enable 2nd & 3rd pins and convertors */
1328
1329 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1330 {
1331         unsigned int vendor_param;
1332         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1333         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1334
1335         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1336                                 INTEL_GET_VENDOR_VERB, 0);
1337         if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1338                 return;
1339
1340         vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1341         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1342                                 INTEL_SET_VENDOR_VERB, vendor_param);
1343         if (vendor_param == -1)
1344                 return;
1345 }
1346
1347 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1348 {
1349         unsigned int vendor_param;
1350         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1351         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1352
1353         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1354                                 INTEL_GET_VENDOR_VERB, 0);
1355         if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1356                 return;
1357
1358         /* enable DP1.2 mode */
1359         vendor_param |= INTEL_EN_DP12;
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
1367 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1368         .startup = hdac_hdmi_pcm_open,
1369         .shutdown = hdac_hdmi_pcm_close,
1370         .hw_params = hdac_hdmi_set_hw_params,
1371         .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1372 };
1373
1374 /*
1375  * Each converter can support a stream independently. So a dai is created
1376  * based on the number of converter queried.
1377  */
1378 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1379                 struct snd_soc_dai_driver **dais,
1380                 struct hdac_hdmi_priv *hdmi, int num_dais)
1381 {
1382         struct snd_soc_dai_driver *hdmi_dais;
1383         struct hdac_hdmi_cvt *cvt;
1384         char name[NAME_SIZE], dai_name[NAME_SIZE];
1385         int i = 0;
1386         u32 rates, bps;
1387         unsigned int rate_max = 384000, rate_min = 8000;
1388         u64 formats;
1389         int ret;
1390
1391         hdmi_dais = devm_kzalloc(&hdev->dev,
1392                         (sizeof(*hdmi_dais) * num_dais),
1393                         GFP_KERNEL);
1394         if (!hdmi_dais)
1395                 return -ENOMEM;
1396
1397         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1398                 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1399                                         &rates, &formats, &bps);
1400                 if (ret)
1401                         return ret;
1402
1403                 /* Filter out 44.1, 88.2 and 176.4Khz */
1404                 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1405                            SNDRV_PCM_RATE_176400);
1406                 if (!rates)
1407                         return -EINVAL;
1408
1409                 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1410                 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1411                                         dai_name, GFP_KERNEL);
1412
1413                 if (!hdmi_dais[i].name)
1414                         return -ENOMEM;
1415
1416                 snprintf(name, sizeof(name), "hifi%d", i+1);
1417                 hdmi_dais[i].playback.stream_name =
1418                                 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1419                 if (!hdmi_dais[i].playback.stream_name)
1420                         return -ENOMEM;
1421
1422                 /*
1423                  * Set caps based on capability queried from the converter.
1424                  * It will be constrained runtime based on ELD queried.
1425                  */
1426                 hdmi_dais[i].playback.formats = formats;
1427                 hdmi_dais[i].playback.rates = rates;
1428                 hdmi_dais[i].playback.rate_max = rate_max;
1429                 hdmi_dais[i].playback.rate_min = rate_min;
1430                 hdmi_dais[i].playback.channels_min = 2;
1431                 hdmi_dais[i].playback.channels_max = 2;
1432                 hdmi_dais[i].playback.sig_bits = bps;
1433                 hdmi_dais[i].ops = &hdmi_dai_ops;
1434                 i++;
1435         }
1436
1437         *dais = hdmi_dais;
1438         hdmi->dai_drv = hdmi_dais;
1439
1440         return 0;
1441 }
1442
1443 /*
1444  * Parse all nodes and store the cvt/pin nids in array
1445  * Add one time initialization for pin and cvt widgets
1446  */
1447 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1448                 struct snd_soc_dai_driver **dais, int *num_dais)
1449 {
1450         hda_nid_t nid;
1451         int i, num_nodes;
1452         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1453         int ret;
1454
1455         hdac_hdmi_skl_enable_all_pins(hdev);
1456         hdac_hdmi_skl_enable_dp12(hdev);
1457
1458         num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1459         if (!nid || num_nodes <= 0) {
1460                 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1461                 return -EINVAL;
1462         }
1463
1464         for (i = 0; i < num_nodes; i++, nid++) {
1465                 unsigned int caps;
1466                 unsigned int type;
1467
1468                 caps = get_wcaps(hdev, nid);
1469                 type = get_wcaps_type(caps);
1470
1471                 if (!(caps & AC_WCAP_DIGITAL))
1472                         continue;
1473
1474                 switch (type) {
1475
1476                 case AC_WID_AUD_OUT:
1477                         ret = hdac_hdmi_add_cvt(hdev, nid);
1478                         if (ret < 0)
1479                                 return ret;
1480                         break;
1481
1482                 case AC_WID_PIN:
1483                         ret = hdac_hdmi_add_pin(hdev, nid);
1484                         if (ret < 0)
1485                                 return ret;
1486                         break;
1487                 }
1488         }
1489
1490         if (!hdmi->num_pin || !hdmi->num_cvt) {
1491                 ret = -EIO;
1492                 dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__);
1493                 return ret;
1494         }
1495
1496         ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1497         if (ret) {
1498                 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1499                         ret);
1500                 return ret;
1501         }
1502
1503         *num_dais = hdmi->num_cvt;
1504         ret = hdac_hdmi_init_dai_map(hdev);
1505         if (ret < 0)
1506                 dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n",
1507                         ret);
1508         return ret;
1509 }
1510
1511 static int hdac_hdmi_pin2port(void *aptr, int pin)
1512 {
1513         struct hdac_device *hdev = aptr;
1514         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1515         const int *map = hdmi->drv_data->port_map;
1516         int i;
1517
1518         if (!hdmi->drv_data->port_num)
1519                 return pin - 4; /* map NID 0x05 -> port #1 */
1520
1521         /*
1522          * looking for the pin number in the mapping table and return
1523          * the index which indicate the port number
1524          */
1525         for (i = 0; i < hdmi->drv_data->port_num; i++) {
1526                 if (pin == map[i])
1527                         return i + 1;
1528         }
1529
1530         /* return -1 if pin number exceeds our expectation */
1531         dev_err(&hdev->dev, "Can't find the port for pin %d\n", pin);
1532         return -1;
1533 }
1534
1535 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1536 {
1537         struct hdac_device *hdev = aptr;
1538         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1539         struct hdac_hdmi_pin *pin = NULL;
1540         struct hdac_hdmi_port *hport = NULL;
1541         struct snd_soc_component *component = hdmi->component;
1542         int i;
1543         hda_nid_t pin_nid;
1544
1545         if (!hdmi->drv_data->port_num) {
1546                 /* for legacy platforms */
1547                 pin_nid = port + 0x04;
1548         } else if (port < hdmi->drv_data->port_num) {
1549                 /* get pin number from the pin2port mapping table */
1550                 pin_nid = hdmi->drv_data->port_map[port - 1];
1551         } else {
1552                 dev_err(&hdev->dev, "Can't find the pin for port %d\n", port);
1553                 return;
1554         }
1555
1556         dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1557                                                         pin_nid, pipe);
1558
1559         /*
1560          * skip notification during system suspend (but not in runtime PM);
1561          * the state will be updated at resume. Also since the ELD and
1562          * connection states are updated in anyway at the end of the resume,
1563          * we can skip it when received during PM process.
1564          */
1565         if (snd_power_get_state(component->card->snd_card) !=
1566                         SNDRV_CTL_POWER_D0)
1567                 return;
1568
1569         if (atomic_read(&hdev->in_pm))
1570                 return;
1571
1572         list_for_each_entry(pin, &hdmi->pin_list, head) {
1573                 if (pin->nid != pin_nid)
1574                         continue;
1575
1576                 /* In case of non MST pin, pipe is -1 */
1577                 if (pipe == -1) {
1578                         pin->mst_capable = false;
1579                         /* if not MST, default is port[0] */
1580                         hport = &pin->ports[0];
1581                 } else {
1582                         for (i = 0; i < pin->num_ports; i++) {
1583                                 pin->mst_capable = true;
1584                                 if (pin->ports[i].id == pipe) {
1585                                         hport = &pin->ports[i];
1586                                         break;
1587                                 }
1588                         }
1589                 }
1590
1591                 if (hport)
1592                         hdac_hdmi_present_sense(pin, hport);
1593         }
1594
1595 }
1596
1597 static struct drm_audio_component_audio_ops aops = {
1598         .pin2port       = hdac_hdmi_pin2port,
1599         .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1600 };
1601
1602 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1603                                                 int device)
1604 {
1605         struct snd_soc_pcm_runtime *rtd;
1606
1607         for_each_card_rtds(card, rtd) {
1608                 if (rtd->pcm && (rtd->pcm->device == device))
1609                         return rtd->pcm;
1610         }
1611
1612         return NULL;
1613 }
1614
1615 /* create jack pin kcontrols */
1616 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1617                                     struct hdac_device *hdev)
1618 {
1619         struct hdac_hdmi_pin *pin;
1620         struct snd_kcontrol_new *kc;
1621         char kc_name[NAME_SIZE], xname[NAME_SIZE];
1622         char *name;
1623         int i = 0, j;
1624         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1625         struct snd_soc_component *component = hdmi->component;
1626
1627         kc = devm_kcalloc(component->dev, hdmi->num_ports,
1628                                 sizeof(*kc), GFP_KERNEL);
1629
1630         if (!kc)
1631                 return -ENOMEM;
1632
1633         list_for_each_entry(pin, &hdmi->pin_list, head) {
1634                 for (j = 0; j < pin->num_ports; j++) {
1635                         snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1636                                                 pin->nid, pin->ports[j].id);
1637                         name = devm_kstrdup(component->dev, xname, GFP_KERNEL);
1638                         if (!name)
1639                                 return -ENOMEM;
1640                         snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1641                         kc[i].name = devm_kstrdup(component->dev, kc_name,
1642                                                         GFP_KERNEL);
1643                         if (!kc[i].name)
1644                                 return -ENOMEM;
1645
1646                         kc[i].private_value = (unsigned long)name;
1647                         kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1648                         kc[i].access = 0;
1649                         kc[i].info = snd_soc_dapm_info_pin_switch;
1650                         kc[i].put = snd_soc_dapm_put_pin_switch;
1651                         kc[i].get = snd_soc_dapm_get_pin_switch;
1652                         i++;
1653                 }
1654         }
1655
1656         return snd_soc_add_card_controls(card, kc, i);
1657 }
1658
1659 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1660                         struct snd_soc_dapm_context *dapm)
1661 {
1662         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1663         struct hdac_device *hdev = hdmi->hdev;
1664         struct hdac_hdmi_pin *pin;
1665         struct snd_soc_dapm_widget *widgets;
1666         struct snd_soc_dapm_route *route;
1667         char w_name[NAME_SIZE];
1668         int i = 0, j, ret;
1669
1670         widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1671                                 sizeof(*widgets), GFP_KERNEL);
1672
1673         if (!widgets)
1674                 return -ENOMEM;
1675
1676         route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1677                                 sizeof(*route), GFP_KERNEL);
1678         if (!route)
1679                 return -ENOMEM;
1680
1681         /* create Jack DAPM widget */
1682         list_for_each_entry(pin, &hdmi->pin_list, head) {
1683                 for (j = 0; j < pin->num_ports; j++) {
1684                         snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1685                                                 pin->nid, pin->ports[j].id);
1686
1687                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1688                                         snd_soc_dapm_spk, NULL,
1689                                         w_name, NULL, NULL, 0, NULL, 0);
1690                         if (ret < 0)
1691                                 return ret;
1692
1693                         pin->ports[j].jack_pin = widgets[i].name;
1694                         pin->ports[j].dapm = dapm;
1695
1696                         /* add to route from Jack widget to output */
1697                         hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1698                                         NULL, pin->ports[j].output_pin, NULL);
1699
1700                         i++;
1701                 }
1702         }
1703
1704         /* Add Route from Jack widget to the output widget */
1705         ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1706         if (ret < 0)
1707                 return ret;
1708
1709         ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1710         if (ret < 0)
1711                 return ret;
1712
1713         ret = snd_soc_dapm_new_widgets(dapm->card);
1714         if (ret < 0)
1715                 return ret;
1716
1717         /* Add Jack Pin switch Kcontrol */
1718         ret = create_fill_jack_kcontrols(dapm->card, hdev);
1719
1720         if (ret < 0)
1721                 return ret;
1722
1723         /* default set the Jack Pin switch to OFF */
1724         list_for_each_entry(pin, &hdmi->pin_list, head) {
1725                 for (j = 0; j < pin->num_ports; j++)
1726                         snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1727                                                 pin->ports[j].jack_pin);
1728         }
1729
1730         return 0;
1731 }
1732 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1733
1734 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1735                                 struct snd_soc_jack *jack)
1736 {
1737         struct snd_soc_component *component = dai->component;
1738         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1739         struct hdac_device *hdev = hdmi->hdev;
1740         struct hdac_hdmi_pcm *pcm;
1741         struct snd_pcm *snd_pcm;
1742         int err;
1743
1744         /*
1745          * this is a new PCM device, create new pcm and
1746          * add to the pcm list
1747          */
1748         pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL);
1749         if (!pcm)
1750                 return -ENOMEM;
1751         pcm->pcm_id = device;
1752         pcm->cvt = hdmi->dai_map[dai->id].cvt;
1753         pcm->jack_event = 0;
1754         pcm->jack = jack;
1755         mutex_init(&pcm->lock);
1756         INIT_LIST_HEAD(&pcm->port_list);
1757         snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1758         if (snd_pcm) {
1759                 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1760                 if (err < 0) {
1761                         dev_err(&hdev->dev,
1762                                 "chmap control add failed with err: %d for pcm: %d\n",
1763                                 err, device);
1764                         return err;
1765                 }
1766         }
1767
1768         list_add_tail(&pcm->head, &hdmi->pcm_list);
1769
1770         return 0;
1771 }
1772 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1773
1774 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1775                         struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1776 {
1777         int i;
1778         struct hdac_hdmi_pin *pin;
1779
1780         list_for_each_entry(pin, &hdmi->pin_list, head) {
1781                 if (detect_pin_caps) {
1782
1783                         if (hdac_hdmi_get_port_len(hdev, pin->nid)  == 0)
1784                                 pin->mst_capable = false;
1785                         else
1786                                 pin->mst_capable = true;
1787                 }
1788
1789                 for (i = 0; i < pin->num_ports; i++) {
1790                         if (!pin->mst_capable && i > 0)
1791                                 continue;
1792
1793                         hdac_hdmi_present_sense(pin, &pin->ports[i]);
1794                 }
1795         }
1796 }
1797
1798 static int hdmi_codec_probe(struct snd_soc_component *component)
1799 {
1800         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1801         struct hdac_device *hdev = hdmi->hdev;
1802         struct snd_soc_dapm_context *dapm =
1803                 snd_soc_component_get_dapm(component);
1804         struct hdac_ext_link *hlink = NULL;
1805         int ret;
1806
1807         hdmi->component = component;
1808
1809         /*
1810          * hold the ref while we probe, also no need to drop the ref on
1811          * exit, we call pm_runtime_suspend() so that will do for us
1812          */
1813         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
1814         if (!hlink) {
1815                 dev_err(&hdev->dev, "hdac link not found\n");
1816                 return -EIO;
1817         }
1818
1819         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1820
1821         ret = create_fill_widget_route_map(dapm);
1822         if (ret < 0)
1823                 return ret;
1824
1825         aops.audio_ptr = hdev;
1826         ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1827         if (ret < 0) {
1828                 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1829                 return ret;
1830         }
1831
1832         hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1833         /* Imp: Store the card pointer in hda_codec */
1834         hdmi->card = dapm->card->snd_card;
1835
1836         /*
1837          * Setup a device_link between card device and HDMI codec device.
1838          * The card device is the consumer and the HDMI codec device is
1839          * the supplier. With this setting, we can make sure that the audio
1840          * domain in display power will be always turned on before operating
1841          * on the HDMI audio codec registers.
1842          * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make
1843          * sure the device link is freed when the machine driver is removed.
1844          */
1845         device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE |
1846                         DL_FLAG_AUTOREMOVE_CONSUMER);
1847         /*
1848          * hdac_device core already sets the state to active and calls
1849          * get_noresume. So enable runtime and set the device to suspend.
1850          */
1851         pm_runtime_enable(&hdev->dev);
1852         pm_runtime_put(&hdev->dev);
1853         pm_runtime_suspend(&hdev->dev);
1854
1855         return 0;
1856 }
1857
1858 static void hdmi_codec_remove(struct snd_soc_component *component)
1859 {
1860         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1861         struct hdac_device *hdev = hdmi->hdev;
1862
1863         pm_runtime_disable(&hdev->dev);
1864 }
1865
1866 #ifdef CONFIG_PM_SLEEP
1867 static int hdmi_codec_resume(struct device *dev)
1868 {
1869         struct hdac_device *hdev = dev_to_hdac_dev(dev);
1870         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1871         int ret;
1872
1873         ret = pm_runtime_force_resume(dev);
1874         if (ret < 0)
1875                 return ret;
1876         /*
1877          * As the ELD notify callback request is not entertained while the
1878          * device is in suspend state. Need to manually check detection of
1879          * all pins here. pin capablity change is not support, so use the
1880          * already set pin caps.
1881          *
1882          * NOTE: this is safe to call even if the codec doesn't actually resume.
1883          * The pin check involves only with DRM audio component hooks, so it
1884          * works even if the HD-audio side is still dreaming peacefully.
1885          */
1886         hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
1887         return 0;
1888 }
1889 #else
1890 #define hdmi_codec_resume NULL
1891 #endif
1892
1893 static const struct snd_soc_component_driver hdmi_hda_codec = {
1894         .probe                  = hdmi_codec_probe,
1895         .remove                 = hdmi_codec_remove,
1896         .use_pmdown_time        = 1,
1897         .endianness             = 1,
1898         .non_legacy_dai_naming  = 1,
1899 };
1900
1901 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
1902                                         unsigned char *chmap)
1903 {
1904         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1905         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1906
1907         memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1908 }
1909
1910 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
1911                                 unsigned char *chmap, int prepared)
1912 {
1913         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1914         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1915         struct hdac_hdmi_port *port;
1916
1917         if (!pcm)
1918                 return;
1919
1920         if (list_empty(&pcm->port_list))
1921                 return;
1922
1923         mutex_lock(&pcm->lock);
1924         pcm->chmap_set = true;
1925         memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1926         list_for_each_entry(port, &pcm->port_list, head)
1927                 if (prepared)
1928                         hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
1929         mutex_unlock(&pcm->lock);
1930 }
1931
1932 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
1933 {
1934         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1935         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1936
1937         if (!pcm)
1938                 return false;
1939
1940         if (list_empty(&pcm->port_list))
1941                 return false;
1942
1943         return true;
1944 }
1945
1946 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
1947 {
1948         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1949         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1950         struct hdac_hdmi_port *port;
1951
1952         if (!pcm)
1953                 return 0;
1954
1955         if (list_empty(&pcm->port_list))
1956                 return 0;
1957
1958         port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
1959
1960         if (!port || !port->eld.eld_valid)
1961                 return 0;
1962
1963         return port->eld.info.spk_alloc;
1964 }
1965
1966 static struct hdac_hdmi_drv_data intel_icl_drv_data  = {
1967         .vendor_nid = INTEL_VENDOR_NID_0x2,
1968         .port_map = icl_pin2port_map,
1969         .port_num = ARRAY_SIZE(icl_pin2port_map),
1970 };
1971
1972 static struct hdac_hdmi_drv_data intel_glk_drv_data  = {
1973         .vendor_nid = INTEL_VENDOR_NID_0xb,
1974 };
1975
1976 static struct hdac_hdmi_drv_data intel_drv_data  = {
1977         .vendor_nid = INTEL_VENDOR_NID_0x8,
1978 };
1979
1980 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
1981 {
1982         struct hdac_hdmi_priv *hdmi_priv = NULL;
1983         struct snd_soc_dai_driver *hdmi_dais = NULL;
1984         struct hdac_ext_link *hlink = NULL;
1985         int num_dais = 0;
1986         int ret = 0;
1987         struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
1988         const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
1989
1990         /* hold the ref while we probe */
1991         hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
1992         if (!hlink) {
1993                 dev_err(&hdev->dev, "hdac link not found\n");
1994                 return -EIO;
1995         }
1996
1997         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1998
1999         hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2000         if (hdmi_priv == NULL)
2001                 return -ENOMEM;
2002
2003         snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2004         hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2005         hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2006         hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2007         hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2008         hdmi_priv->hdev = hdev;
2009
2010         if (!hdac_id)
2011                 return -ENODEV;
2012
2013         if (hdac_id->driver_data)
2014                 hdmi_priv->drv_data =
2015                         (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2016         else
2017                 hdmi_priv->drv_data = &intel_drv_data;
2018
2019         dev_set_drvdata(&hdev->dev, hdmi_priv);
2020
2021         INIT_LIST_HEAD(&hdmi_priv->pin_list);
2022         INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2023         INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2024         mutex_init(&hdmi_priv->pin_mutex);
2025
2026         /*
2027          * Turned off in the runtime_suspend during the first explicit
2028          * pm_runtime_suspend call.
2029          */
2030         snd_hdac_display_power(hdev->bus, hdev->addr, true);
2031
2032         ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2033         if (ret < 0) {
2034                 dev_err(&hdev->dev,
2035                         "Failed in parse and map nid with err: %d\n", ret);
2036                 return ret;
2037         }
2038         snd_hdac_refresh_widgets(hdev, true);
2039
2040         /* ASoC specific initialization */
2041         ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2042                                         hdmi_dais, num_dais);
2043
2044         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2045
2046         return ret;
2047 }
2048
2049 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2050 {
2051         snd_hdac_display_power(hdev->bus, hdev->addr, false);
2052
2053         return 0;
2054 }
2055
2056 #ifdef CONFIG_PM
2057 static int hdac_hdmi_runtime_suspend(struct device *dev)
2058 {
2059         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2060         struct hdac_bus *bus = hdev->bus;
2061         struct hdac_ext_link *hlink = NULL;
2062
2063         dev_dbg(dev, "Enter: %s\n", __func__);
2064
2065         /* controller may not have been initialized for the first time */
2066         if (!bus)
2067                 return 0;
2068
2069         /*
2070          * Power down afg.
2071          * codec_read is preferred over codec_write to set the power state.
2072          * This way verb is send to set the power state and response
2073          * is received. So setting power state is ensured without using loop
2074          * to read the state.
2075          */
2076         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2077                                                         AC_PWRST_D3);
2078
2079         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2080         if (!hlink) {
2081                 dev_err(dev, "hdac link not found\n");
2082                 return -EIO;
2083         }
2084
2085         snd_hdac_ext_bus_link_put(bus, hlink);
2086
2087         snd_hdac_display_power(bus, hdev->addr, false);
2088
2089         return 0;
2090 }
2091
2092 static int hdac_hdmi_runtime_resume(struct device *dev)
2093 {
2094         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2095         struct hdac_bus *bus = hdev->bus;
2096         struct hdac_ext_link *hlink = NULL;
2097
2098         dev_dbg(dev, "Enter: %s\n", __func__);
2099
2100         /* controller may not have been initialized for the first time */
2101         if (!bus)
2102                 return 0;
2103
2104         hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2105         if (!hlink) {
2106                 dev_err(dev, "hdac link not found\n");
2107                 return -EIO;
2108         }
2109
2110         snd_hdac_ext_bus_link_get(bus, hlink);
2111
2112         snd_hdac_display_power(bus, hdev->addr, true);
2113
2114         hdac_hdmi_skl_enable_all_pins(hdev);
2115         hdac_hdmi_skl_enable_dp12(hdev);
2116
2117         /* Power up afg */
2118         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2119                                                         AC_PWRST_D0);
2120
2121         return 0;
2122 }
2123 #else
2124 #define hdac_hdmi_runtime_suspend NULL
2125 #define hdac_hdmi_runtime_resume NULL
2126 #endif
2127
2128 static const struct dev_pm_ops hdac_hdmi_pm = {
2129         SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2130         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume)
2131 };
2132
2133 static const struct hda_device_id hdmi_list[] = {
2134         HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2135         HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2136         HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2137         HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2138                                                    &intel_glk_drv_data),
2139         HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2140                                                    &intel_glk_drv_data),
2141         HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
2142                                                    &intel_icl_drv_data),
2143         {}
2144 };
2145
2146 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2147
2148 static struct hdac_driver hdmi_driver = {
2149         .driver = {
2150                 .name   = "HDMI HDA Codec",
2151                 .pm = &hdac_hdmi_pm,
2152         },
2153         .id_table       = hdmi_list,
2154         .probe          = hdac_hdmi_dev_probe,
2155         .remove         = hdac_hdmi_dev_remove,
2156 };
2157
2158 static int __init hdmi_init(void)
2159 {
2160         return snd_hda_ext_driver_register(&hdmi_driver);
2161 }
2162
2163 static void __exit hdmi_exit(void)
2164 {
2165         snd_hda_ext_driver_unregister(&hdmi_driver);
2166 }
2167
2168 module_init(hdmi_init);
2169 module_exit(hdmi_exit);
2170
2171 MODULE_LICENSE("GPL v2");
2172 MODULE_DESCRIPTION("HDMI HD codec");
2173 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2174 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");