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 <[email protected]>
   7  *          Subhransu S. Prusty <[email protected]>
   8  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   9  *
  10  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/delay.h>
  15 #include <linux/module.h>
  16 #include <linux/pm_runtime.h>
  17 #include <linux/hdmi.h>
  18 #include <drm/drm_edid.h>
  19 #include <sound/pcm_params.h>
  20 #include <sound/jack.h>
  21 #include <sound/soc.h>
  22 #include <sound/hdaudio_ext.h>
  23 #include <sound/hda_i915.h>
  24 #include <sound/pcm_drm_eld.h>
  25 #include <sound/hda_chmap.h>
  26 #include "../../hda/local.h"
  27 #include "hdac_hdmi.h"
  28
  29 #define NAME_SIZE       32
  30
  31 #define AMP_OUT_MUTE            0xb080
  32 #define AMP_OUT_UNMUTE          0xb000
  33 #define PIN_OUT                 (AC_PINCTL_OUT_EN)
  34
  35 #define HDA_MAX_CONNECTIONS     32
  36
  37 #define HDA_MAX_CVTS            3
  38 #define HDA_MAX_PORTS           3
  39
  40 #define ELD_MAX_SIZE    256
  41 #define ELD_FIXED_BYTES 20
  42
  43 #define ELD_VER_CEA_861D 2
  44 #define ELD_VER_PARTIAL 31
  45 #define ELD_MAX_MNL     16
  46
  47 struct hdac_hdmi_cvt_params {
  48         unsigned int channels_min;
  49         unsigned int channels_max;
  50         u32 rates;
  51         u64 formats;
  52         unsigned int maxbps;
  53 };
  54
  55 struct hdac_hdmi_cvt {
  56         struct list_head head;
  57         hda_nid_t nid;
  58         const char *name;
  59         struct hdac_hdmi_cvt_params params;
  60 };
  61
  62 /* Currently only spk_alloc, more to be added */
  63 struct hdac_hdmi_parsed_eld {
  64         u8 spk_alloc;
  65 };
  66
  67 struct hdac_hdmi_eld {
  68         bool    monitor_present;
  69         bool    eld_valid;
  70         int     eld_size;
  71         char    eld_buffer[ELD_MAX_SIZE];
  72         struct  hdac_hdmi_parsed_eld info;
  73 };
  74
  75 struct hdac_hdmi_pin {
  76         struct list_head head;
  77         hda_nid_t nid;
  78         bool mst_capable;
  79         struct hdac_hdmi_port *ports;
  80         int num_ports;
  81         struct hdac_device *hdev;
  82 };
  83
  84 struct hdac_hdmi_port {
  85         struct list_head head;
  86         int id;
  87         struct hdac_hdmi_pin *pin;
  88         int num_mux_nids;
  89         hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
  90         struct hdac_hdmi_eld eld;
  91         const char *jack_pin;
  92         bool is_connect;
  93         struct snd_soc_dapm_context *dapm;
  94         const char *output_pin;
  95         struct work_struct dapm_work;
  96 };
  97
  98 struct hdac_hdmi_pcm {
  99         struct list_head head;
 100         int pcm_id;
 101         struct list_head port_list;
 102         struct hdac_hdmi_cvt *cvt;
 103         struct snd_soc_jack *jack;
 104         int stream_tag;
 105         int channels;
 106         int format;
 107         bool chmap_set;
 108         unsigned char chmap[8]; /* ALSA API channel-map */
 109         struct mutex lock;
 110         int jack_event;
 111         struct snd_kcontrol *eld_ctl;
 112 };
 113
 114 struct hdac_hdmi_dai_port_map {
 115         int dai_id;
 116         struct hdac_hdmi_port *port;
 117         struct hdac_hdmi_cvt *cvt;
 118 };
 119
 120 struct hdac_hdmi_drv_data {
 121         unsigned int vendor_nid;
 122 };
 123
 124 struct hdac_hdmi_priv {
 125         struct hdac_device *hdev;
 126         struct snd_soc_component *component;
 127         struct snd_card *card;
 128         struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
 129         struct list_head pin_list;
 130         struct list_head cvt_list;
 131         struct list_head pcm_list;
 132         int num_pin;
 133         int num_cvt;
 134         int num_ports;
 135         struct mutex pin_mutex;
 136         struct hdac_chmap chmap;
 137         struct hdac_hdmi_drv_data *drv_data;
 138         struct snd_soc_dai_driver *dai_drv;
 139 };
 140
 141 #define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
 142
 143 static struct hdac_hdmi_pcm *
 144 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
 145                            struct hdac_hdmi_cvt *cvt)
 146 {
 147         struct hdac_hdmi_pcm *pcm;
 148
 149         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 150                 if (pcm->cvt == cvt)
 151                         return pcm;
 152         }
 153
 154         return NULL;
 155 }
 156
 157 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
 158                 struct hdac_hdmi_port *port, bool is_connect)
 159 {
 160         struct hdac_device *hdev = port->pin->hdev;
 161
 162         port->is_connect = is_connect;
 163         if (is_connect) {
 164                 /*
 165                  * Report Jack connect event when a device is connected
 166                  * for the first time where same PCM is attached to multiple
 167                  * ports.
 168                  */
 169                 if (pcm->jack_event == 0) {
 170                         dev_dbg(&hdev->dev,
 171                                         "jack report for pcm=%d\n",
 172                                         pcm->pcm_id);
 173                         snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
 174                                                 SND_JACK_AVOUT);
 175                 }
 176                 pcm->jack_event++;
 177         } else {
 178                 /*
 179                  * Report Jack disconnect event when a device is disconnected
 180                  * is the only last connected device when same PCM is attached
 181                  * to multiple ports.
 182                  */
 183                 if (pcm->jack_event == 1)
 184                         snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
 185                 if (pcm->jack_event > 0)
 186                         pcm->jack_event--;
 187         }
 188 }
 189
 190 static void hdac_hdmi_port_dapm_update(struct hdac_hdmi_port *port)
 191 {
 192         if (port->is_connect)
 193                 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
 194         else
 195                 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
 196         snd_soc_dapm_sync(port->dapm);
 197 }
 198
 199 static void hdac_hdmi_jack_dapm_work(struct work_struct *work)
 200 {
 201         struct hdac_hdmi_port *port;
 202
 203         port = container_of(work, struct hdac_hdmi_port, dapm_work);
 204         hdac_hdmi_port_dapm_update(port);
 205 }
 206
 207 static void hdac_hdmi_jack_report_sync(struct hdac_hdmi_pcm *pcm,
 208                 struct hdac_hdmi_port *port, bool is_connect)
 209 {
 210         hdac_hdmi_jack_report(pcm, port, is_connect);
 211         hdac_hdmi_port_dapm_update(port);
 212 }
 213
 214 /* MST supported verbs */
 215 /*
 216  * Get the no devices that can be connected to a port on the Pin widget.
 217  */
 218 static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
 219 {
 220         unsigned int caps;
 221         unsigned int type, param;
 222
 223         caps = get_wcaps(hdev, nid);
 224         type = get_wcaps_type(caps);
 225
 226         if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
 227                 return 0;
 228
 229         param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
 230         if (param == -1)
 231                 return param;
 232
 233         return param & AC_DEV_LIST_LEN_MASK;
 234 }
 235
 236 /*
 237  * Get the port entry select on the pin. Return the port entry
 238  * id selected on the pin. Return 0 means the first port entry
 239  * is selected or MST is not supported.
 240  */
 241 static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
 242                                         struct hdac_hdmi_port *port)
 243 {
 244         return snd_hdac_codec_read(hdev, port->pin->nid,
 245                                 0, AC_VERB_GET_DEVICE_SEL, 0);
 246 }
 247
 248 /*
 249  * Sets the selected port entry for the configuring Pin widget verb.
 250  * returns error if port set is not equal to port get otherwise success
 251  */
 252 static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
 253                                         struct hdac_hdmi_port *port)
 254 {
 255         int num_ports;
 256
 257         if (!port->pin->mst_capable)
 258                 return 0;
 259
 260         /* AC_PAR_DEVLIST_LEN is 0 based. */
 261         num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
 262         if (num_ports < 0)
 263                 return -EIO;
 264         /*
 265          * Device List Length is a 0 based integer value indicating the
 266          * number of sink device that a MST Pin Widget can support.
 267          */
 268         if (num_ports + 1  < port->id)
 269                 return 0;
 270
 271         snd_hdac_codec_write(hdev, port->pin->nid, 0,
 272                         AC_VERB_SET_DEVICE_SEL, port->id);
 273
 274         if (port->id != hdac_hdmi_port_select_get(hdev, port))
 275                 return -EIO;
 276
 277         dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
 278
 279         return 0;
 280 }
 281
 282 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
 283                                                 int pcm_idx)
 284 {
 285         struct hdac_hdmi_pcm *pcm;
 286
 287         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 288                 if (pcm->pcm_id == pcm_idx)
 289                         return pcm;
 290         }
 291
 292         return NULL;
 293 }
 294
 295 static unsigned int sad_format(const u8 *sad)
 296 {
 297         return ((sad[0] >> 0x3) & 0x1f);
 298 }
 299
 300 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
 301 {
 302         return (sad[2] & 7);
 303 }
 304
 305 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
 306                                                 void *eld)
 307 {
 308         u64 formats = SNDRV_PCM_FMTBIT_S16;
 309         int i;
 310         const u8 *sad, *eld_buf = eld;
 311
 312         sad = drm_eld_sad(eld_buf);
 313         if (!sad)
 314                 goto format_constraint;
 315
 316         for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
 317                 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
 318
 319                         /*
 320                          * the controller support 20 and 24 bits in 32 bit
 321                          * container so we set S32
 322                          */
 323                         if (sad_sample_bits_lpcm(sad) & 0x6)
 324                                 formats |= SNDRV_PCM_FMTBIT_S32;
 325                 }
 326         }
 327
 328 format_constraint:
 329         return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
 330                                 formats);
 331
 332 }
 333
 334 static void
 335 hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
 336                                 int packet_index, int byte_index)
 337 {
 338         int val;
 339
 340         val = (packet_index << 5) | (byte_index & 0x1f);
 341         snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
 342 }
 343
 344 struct dp_audio_infoframe {
 345         u8 type; /* 0x84 */
 346         u8 len;  /* 0x1b */
 347         u8 ver;  /* 0x11 << 2 */
 348
 349         u8 CC02_CT47;   /* match with HDMI infoframe from this on */
 350         u8 SS01_SF24;
 351         u8 CXT04;
 352         u8 CA;
 353         u8 LFEPBL01_LSV36_DM_INH7;
 354 };
 355
 356 static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev,
 357                    struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
 358 {
 359         uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
 360         struct hdmi_audio_infoframe frame;
 361         struct hdac_hdmi_pin *pin = port->pin;
 362         struct dp_audio_infoframe dp_ai;
 363         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 364         struct hdac_hdmi_cvt *cvt = pcm->cvt;
 365         u8 *dip;
 366         int ret;
 367         int i;
 368         const u8 *eld_buf;
 369         u8 conn_type;
 370         int channels, ca;
 371
 372         ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc,
 373                         pcm->channels, pcm->chmap_set, true, pcm->chmap);
 374
 375         channels = snd_hdac_get_active_channels(ca);
 376         hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels);
 377
 378         snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
 379                                 pcm->channels, pcm->chmap, pcm->chmap_set);
 380
 381         eld_buf = port->eld.eld_buffer;
 382         conn_type = drm_eld_get_conn_type(eld_buf);
 383
 384         switch (conn_type) {
 385         case DRM_ELD_CONN_TYPE_HDMI:
 386                 hdmi_audio_infoframe_init(&frame);
 387
 388                 frame.channels = channels;
 389                 frame.channel_allocation = ca;
 390
 391                 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
 392                 if (ret < 0)
 393                         return ret;
 394
 395                 break;
 396
 397         case DRM_ELD_CONN_TYPE_DP:
 398                 memset(&dp_ai, 0, sizeof(dp_ai));
 399                 dp_ai.type      = 0x84;
 400                 dp_ai.len       = 0x1b;
 401                 dp_ai.ver       = 0x11 << 2;
 402                 dp_ai.CC02_CT47 = channels - 1;
 403                 dp_ai.CA        = ca;
 404
 405                 dip = (u8 *)&dp_ai;
 406                 break;
 407
 408         default:
 409                 dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type);
 410                 return -EIO;
 411         }
 412
 413         /* stop infoframe transmission */
 414         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 415         snd_hdac_codec_write(hdev, pin->nid, 0,
 416                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
 417
 418
 419         /*  Fill infoframe. Index auto-incremented */
 420         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 421         if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
 422                 for (i = 0; i < sizeof(buffer); i++)
 423                         snd_hdac_codec_write(hdev, pin->nid, 0,
 424                                 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
 425         } else {
 426                 for (i = 0; i < sizeof(dp_ai); i++)
 427                         snd_hdac_codec_write(hdev, pin->nid, 0,
 428                                 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
 429         }
 430
 431         /* Start infoframe */
 432         hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
 433         snd_hdac_codec_write(hdev, pin->nid, 0,
 434                         AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
 435
 436         return 0;
 437 }
 438
 439 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
 440                 unsigned int tx_mask, unsigned int rx_mask,
 441                 int slots, int slot_width)
 442 {
 443         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 444         struct hdac_device *hdev = hdmi->hdev;
 445         struct hdac_hdmi_dai_port_map *dai_map;
 446         struct hdac_hdmi_pcm *pcm;
 447
 448         dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, tx_mask);
 449
 450         dai_map = &hdmi->dai_map[dai->id];
 451
 452         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 453
 454         if (pcm)
 455                 pcm->stream_tag = (tx_mask << 4);
 456
 457         return 0;
 458 }
 459
 460 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
 461         struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
 462 {
 463         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 464         struct hdac_hdmi_dai_port_map *dai_map;
 465         struct hdac_hdmi_pcm *pcm;
 466         int format;
 467
 468         dai_map = &hdmi->dai_map[dai->id];
 469
 470         format = snd_hdac_calc_stream_format(params_rate(hparams),
 471                         params_channels(hparams), params_format(hparams),
 472                         dai->driver->playback.sig_bits, 0);
 473
 474         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 475         if (!pcm)
 476                 return -EIO;
 477
 478         pcm->format = format;
 479         pcm->channels = params_channels(hparams);
 480
 481         return 0;
 482 }
 483
 484 static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
 485                                         struct hdac_hdmi_pin *pin,
 486                                         struct hdac_hdmi_port *port)
 487 {
 488         if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
 489                 dev_warn(&hdev->dev,
 490                         "HDMI: pin %d wcaps %#x does not support connection list\n",
 491                         pin->nid, get_wcaps(hdev, pin->nid));
 492                 return -EINVAL;
 493         }
 494
 495         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 496                 return -EIO;
 497
 498         port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
 499                         port->mux_nids, HDA_MAX_CONNECTIONS);
 500         if (port->num_mux_nids == 0)
 501                 dev_warn(&hdev->dev,
 502                         "No connections found for pin:port %d:%d\n",
 503                                                 pin->nid, port->id);
 504
 505         dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
 506                         port->num_mux_nids, pin->nid, port->id);
 507
 508         return port->num_mux_nids;
 509 }
 510
 511 /*
 512  * Query pcm list and return port to which stream is routed.
 513  *
 514  * Also query connection list of the pin, to validate the cvt to port map.
 515  *
 516  * Same stream rendering to multiple ports simultaneously can be done
 517  * possibly, but not supported for now in driver. So return the first port
 518  * connected.
 519  */
 520 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
 521                         struct hdac_device *hdev,
 522                         struct hdac_hdmi_priv *hdmi,
 523                         struct hdac_hdmi_cvt *cvt)
 524 {
 525         struct hdac_hdmi_pcm *pcm;
 526         struct hdac_hdmi_port *port;
 527         int ret, i;
 528
 529         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 530                 if (pcm->cvt == cvt) {
 531                         if (list_empty(&pcm->port_list))
 532                                 continue;
 533
 534                         list_for_each_entry(port, &pcm->port_list, head) {
 535                                 mutex_lock(&pcm->lock);
 536                                 ret = hdac_hdmi_query_port_connlist(hdev,
 537                                                         port->pin, port);
 538                                 mutex_unlock(&pcm->lock);
 539                                 if (ret < 0)
 540                                         continue;
 541
 542                                 for (i = 0; i < port->num_mux_nids; i++) {
 543                                         if (port->mux_nids[i] == cvt->nid &&
 544                                                 port->eld.monitor_present &&
 545                                                 port->eld.eld_valid)
 546                                                 return port;
 547                                 }
 548                         }
 549                 }
 550         }
 551
 552         return NULL;
 553 }
 554
 555 /*
 556  * Go through all converters and ensure connection is set to
 557  * the correct pin as set via kcontrols.
 558  */
 559 static void hdac_hdmi_verify_connect_sel_all_pins(struct hdac_device *hdev)
 560 {
 561         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 562         struct hdac_hdmi_port *port;
 563         struct hdac_hdmi_cvt *cvt;
 564         int cvt_idx = 0;
 565
 566         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
 567                 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
 568                 if (port && port->pin) {
 569                         snd_hdac_codec_write(hdev, port->pin->nid, 0,
 570                                              AC_VERB_SET_CONNECT_SEL, cvt_idx);
 571                         dev_dbg(&hdev->dev, "%s: %s set connect %d -> %d\n",
 572                                 __func__, cvt->name, port->pin->nid, cvt_idx);
 573                 }
 574                 ++cvt_idx;
 575         }
 576 }
 577
 578 /*
 579  * This tries to get a valid pin and set the HW constraints based on the
 580  * ELD. Even if a valid pin is not found return success so that device open
 581  * doesn't fail.
 582  */
 583 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
 584                         struct snd_soc_dai *dai)
 585 {
 586         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 587         struct hdac_device *hdev = hdmi->hdev;
 588         struct hdac_hdmi_dai_port_map *dai_map;
 589         struct hdac_hdmi_cvt *cvt;
 590         struct hdac_hdmi_port *port;
 591         int ret;
 592
 593         dai_map = &hdmi->dai_map[dai->id];
 594
 595         cvt = dai_map->cvt;
 596         port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
 597
 598         /*
 599          * To make PA and other userland happy.
 600          * userland scans devices so returning error does not help.
 601          */
 602         if (!port)
 603                 return 0;
 604         if ((!port->eld.monitor_present) ||
 605                         (!port->eld.eld_valid)) {
 606
 607                 dev_warn(&hdev->dev,
 608                         "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
 609                         port->eld.monitor_present, port->eld.eld_valid,
 610                         port->pin->nid, port->id);
 611
 612                 return 0;
 613         }
 614
 615         dai_map->port = port;
 616
 617         ret = hdac_hdmi_eld_limit_formats(substream->runtime,
 618                                 port->eld.eld_buffer);
 619         if (ret < 0)
 620                 return ret;
 621
 622         return snd_pcm_hw_constraint_eld(substream->runtime,
 623                                 port->eld.eld_buffer);
 624 }
 625
 626 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
 627                 struct snd_soc_dai *dai)
 628 {
 629         struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
 630         struct hdac_hdmi_dai_port_map *dai_map;
 631         struct hdac_hdmi_pcm *pcm;
 632
 633         dai_map = &hdmi->dai_map[dai->id];
 634
 635         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
 636
 637         if (pcm) {
 638                 mutex_lock(&pcm->lock);
 639                 pcm->chmap_set = false;
 640                 memset(pcm->chmap, 0, sizeof(pcm->chmap));
 641                 pcm->channels = 0;
 642                 mutex_unlock(&pcm->lock);
 643         }
 644
 645         if (dai_map->port)
 646                 dai_map->port = NULL;
 647 }
 648
 649 static int
 650 hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt)
 651 {
 652         unsigned int chans;
 653         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 654         int err;
 655
 656         chans = get_wcaps(hdev, cvt->nid);
 657         chans = get_wcaps_channels(chans);
 658
 659         cvt->params.channels_min = 2;
 660
 661         cvt->params.channels_max = chans;
 662         if (chans > hdmi->chmap.channels_max)
 663                 hdmi->chmap.channels_max = chans;
 664
 665         err = snd_hdac_query_supported_pcm(hdev, cvt->nid,
 666                         &cvt->params.rates,
 667                         &cvt->params.formats,
 668                         &cvt->params.maxbps);
 669         if (err < 0)
 670                 dev_err(&hdev->dev,
 671                         "Failed to query pcm params for nid %d: %d\n",
 672                         cvt->nid, err);
 673
 674         return err;
 675 }
 676
 677 static int hdac_hdmi_fill_widget_info(struct device *dev,
 678                 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
 679                 void *priv, const char *wname, const char *stream,
 680                 struct snd_kcontrol_new *wc, int numkc,
 681                 int (*event)(struct snd_soc_dapm_widget *,
 682                 struct snd_kcontrol *, int), unsigned short event_flags)
 683 {
 684         w->id = id;
 685         w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
 686         if (!w->name)
 687                 return -ENOMEM;
 688
 689         w->sname = stream;
 690         w->reg = SND_SOC_NOPM;
 691         w->shift = 0;
 692         w->kcontrol_news = wc;
 693         w->num_kcontrols = numkc;
 694         w->priv = priv;
 695         w->event = event;
 696         w->event_flags = event_flags;
 697
 698         return 0;
 699 }
 700
 701 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
 702                 const char *sink, const char *control, const char *src,
 703                 int (*handler)(struct snd_soc_dapm_widget *src,
 704                         struct snd_soc_dapm_widget *sink))
 705 {
 706         route->sink = sink;
 707         route->source = src;
 708         route->control = control;
 709         route->connected = handler;
 710 }
 711
 712 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
 713                                         struct hdac_hdmi_port *port)
 714 {
 715         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 716         struct hdac_hdmi_pcm *pcm;
 717         struct hdac_hdmi_port *p;
 718
 719         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 720                 if (list_empty(&pcm->port_list))
 721                         continue;
 722
 723                 list_for_each_entry(p, &pcm->port_list, head) {
 724                         if (p->id == port->id && port->pin == p->pin)
 725                                 return pcm;
 726                 }
 727         }
 728
 729         return NULL;
 730 }
 731
 732 static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
 733                              hda_nid_t nid, unsigned int pwr_state)
 734 {
 735         int count;
 736         unsigned int state;
 737
 738         if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
 739                 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
 740                         for (count = 0; count < 10; count++) {
 741                                 snd_hdac_codec_read(hdev, nid, 0,
 742                                                 AC_VERB_SET_POWER_STATE,
 743                                                 pwr_state);
 744                                 state = snd_hdac_sync_power_state(hdev,
 745                                                 nid, pwr_state);
 746                                 if (!(state & AC_PWRST_ERROR))
 747                                         break;
 748                         }
 749                 }
 750         }
 751 }
 752
 753 static void hdac_hdmi_set_amp(struct hdac_device *hdev,
 754                                    hda_nid_t nid, int val)
 755 {
 756         if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
 757                 snd_hdac_codec_write(hdev, nid, 0,
 758                                         AC_VERB_SET_AMP_GAIN_MUTE, val);
 759 }
 760
 761
 762 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
 763                                         struct snd_kcontrol *kc, int event)
 764 {
 765         struct hdac_hdmi_port *port = w->priv;
 766         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 767         struct hdac_hdmi_pcm *pcm;
 768
 769         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 770                         __func__, w->name, event);
 771
 772         pcm = hdac_hdmi_get_pcm(hdev, port);
 773         if (!pcm)
 774                 return -EIO;
 775
 776         /* set the device if pin is mst_capable */
 777         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 778                 return -EIO;
 779
 780         switch (event) {
 781         case SND_SOC_DAPM_PRE_PMU:
 782                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
 783
 784                 /* Enable out path for this pin widget */
 785                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 786                                 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
 787
 788                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
 789
 790                 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
 791
 792         case SND_SOC_DAPM_POST_PMD:
 793                 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
 794
 795                 /* Disable out path for this pin widget */
 796                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 797                                 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
 798
 799                 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
 800                 break;
 801
 802         }
 803
 804         return 0;
 805 }
 806
 807 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
 808                                         struct snd_kcontrol *kc, int event)
 809 {
 810         struct hdac_hdmi_cvt *cvt = w->priv;
 811         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 812         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 813         struct hdac_hdmi_pcm *pcm;
 814
 815         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 816                         __func__, w->name, event);
 817
 818         pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
 819         if (!pcm)
 820                 return -EIO;
 821
 822         switch (event) {
 823         case SND_SOC_DAPM_PRE_PMU:
 824                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
 825
 826                 /* Enable transmission */
 827                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 828                         AC_VERB_SET_DIGI_CONVERT_1, 1);
 829
 830                 /* Category Code (CC) to zero */
 831                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 832                         AC_VERB_SET_DIGI_CONVERT_2, 0);
 833
 834                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 835                                 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
 836                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 837                                 AC_VERB_SET_STREAM_FORMAT, pcm->format);
 838
 839                 /*
 840                  * The connection indices are shared by all converters and
 841                  * may interfere with each other. Ensure correct
 842                  * routing for all converters at stream start.
 843                  */
 844                 hdac_hdmi_verify_connect_sel_all_pins(hdev);
 845
 846                 break;
 847
 848         case SND_SOC_DAPM_POST_PMD:
 849                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 850                                 AC_VERB_SET_CHANNEL_STREAMID, 0);
 851                 snd_hdac_codec_write(hdev, cvt->nid, 0,
 852                                 AC_VERB_SET_STREAM_FORMAT, 0);
 853
 854                 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
 855                 break;
 856
 857         }
 858
 859         return 0;
 860 }
 861
 862 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
 863                                         struct snd_kcontrol *kc, int event)
 864 {
 865         struct hdac_hdmi_port *port = w->priv;
 866         struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
 867         int mux_idx;
 868
 869         dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
 870                         __func__, w->name, event);
 871
 872         if (!kc)
 873                 kc  = w->kcontrols[0];
 874
 875         mux_idx = dapm_kcontrol_get_value(kc);
 876
 877         /* set the device if pin is mst_capable */
 878         if (hdac_hdmi_port_select_set(hdev, port) < 0)
 879                 return -EIO;
 880
 881         if (mux_idx > 0) {
 882                 snd_hdac_codec_write(hdev, port->pin->nid, 0,
 883                         AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
 884         }
 885
 886         return 0;
 887 }
 888
 889 /*
 890  * Based on user selection, map the PINs with the PCMs.
 891  */
 892 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
 893                 struct snd_ctl_elem_value *ucontrol)
 894 {
 895         int ret;
 896         struct hdac_hdmi_port *p, *p_next;
 897         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 898         struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
 899         struct snd_soc_dapm_context *dapm = w->dapm;
 900         struct hdac_hdmi_port *port = w->priv;
 901         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
 902         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 903         struct hdac_hdmi_pcm *pcm;
 904         const char *cvt_name =  e->texts[ucontrol->value.enumerated.item[0]];
 905
 906         ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
 907         if (ret < 0)
 908                 return ret;
 909
 910         if (port == NULL)
 911                 return -EINVAL;
 912
 913         mutex_lock(&hdmi->pin_mutex);
 914         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 915                 if (list_empty(&pcm->port_list))
 916                         continue;
 917
 918                 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
 919                         if (p == port && p->id == port->id &&
 920                                         p->pin == port->pin) {
 921                                 hdac_hdmi_jack_report_sync(pcm, port, false);
 922                                 list_del(&p->head);
 923                         }
 924                 }
 925         }
 926
 927         /*
 928          * Jack status is not reported during device probe as the
 929          * PCMs are not registered by then. So report it here.
 930          */
 931         list_for_each_entry(pcm, &hdmi->pcm_list, head) {
 932                 if (!strcmp(cvt_name, pcm->cvt->name)) {
 933                         list_add_tail(&port->head, &pcm->port_list);
 934                         if (port->eld.monitor_present && port->eld.eld_valid) {
 935                                 hdac_hdmi_jack_report_sync(pcm, port, true);
 936                                 mutex_unlock(&hdmi->pin_mutex);
 937                                 return ret;
 938                         }
 939                 }
 940         }
 941         mutex_unlock(&hdmi->pin_mutex);
 942
 943         return ret;
 944 }
 945
 946 /*
 947  * Ideally the Mux inputs should be based on the num_muxs enumerated, but
 948  * the display driver seem to be programming the connection list for the pin
 949  * widget runtime.
 950  *
 951  * So programming all the possible inputs for the mux, the user has to take
 952  * care of selecting the right one and leaving all other inputs selected to
 953  * "NONE"
 954  */
 955 static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
 956                                 struct hdac_hdmi_port *port,
 957                                 struct snd_soc_dapm_widget *widget,
 958                                 const char *widget_name)
 959 {
 960         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
 961         struct hdac_hdmi_pin *pin = port->pin;
 962         struct snd_kcontrol_new *kc;
 963         struct hdac_hdmi_cvt *cvt;
 964         struct soc_enum *se;
 965         char kc_name[NAME_SIZE];
 966         char mux_items[NAME_SIZE];
 967         /* To hold inputs to the Pin mux */
 968         char *items[HDA_MAX_CONNECTIONS];
 969         int i = 0;
 970         int num_items = hdmi->num_cvt + 1;
 971
 972         kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
 973         if (!kc)
 974                 return -ENOMEM;
 975
 976         se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
 977         if (!se)
 978                 return -ENOMEM;
 979
 980         snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
 981                                                 pin->nid, port->id);
 982         kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
 983         if (!kc->name)
 984                 return -ENOMEM;
 985
 986         kc->private_value = (long)se;
 987         kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 988         kc->access = 0;
 989         kc->info = snd_soc_info_enum_double;
 990         kc->put = hdac_hdmi_set_pin_port_mux;
 991         kc->get = snd_soc_dapm_get_enum_double;
 992
 993         se->reg = SND_SOC_NOPM;
 994
 995         /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
 996         se->items = num_items;
 997         se->mask = roundup_pow_of_two(se->items) - 1;
 998
 999         sprintf(mux_items, "NONE");
1000         items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
1001         if (!items[i])
1002                 return -ENOMEM;
1003
1004         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1005                 i++;
1006                 sprintf(mux_items, "cvt %d", cvt->nid);
1007                 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
1008                 if (!items[i])
1009                         return -ENOMEM;
1010         }
1011
1012         se->texts = devm_kmemdup(&hdev->dev, items,
1013                         (num_items  * sizeof(char *)), GFP_KERNEL);
1014         if (!se->texts)
1015                 return -ENOMEM;
1016
1017         return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
1018                         snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
1019                         hdac_hdmi_pin_mux_widget_event,
1020                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
1021 }
1022
1023 /* Add cvt <- input <- mux route map */
1024 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
1025                         struct snd_soc_dapm_widget *widgets,
1026                         struct snd_soc_dapm_route *route, int rindex)
1027 {
1028         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1029         const struct snd_kcontrol_new *kc;
1030         struct soc_enum *se;
1031         int mux_index = hdmi->num_cvt + hdmi->num_ports;
1032         int i, j;
1033
1034         for (i = 0; i < hdmi->num_ports; i++) {
1035                 kc = widgets[mux_index].kcontrol_news;
1036                 se = (struct soc_enum *)kc->private_value;
1037                 for (j = 0; j < hdmi->num_cvt; j++) {
1038                         hdac_hdmi_fill_route(&route[rindex],
1039                                         widgets[mux_index].name,
1040                                         se->texts[j + 1],
1041                                         widgets[j].name, NULL);
1042
1043                         rindex++;
1044                 }
1045
1046                 mux_index++;
1047         }
1048 }
1049
1050 /*
1051  * Widgets are added in the below sequence
1052  *      Converter widgets for num converters enumerated
1053  *      Pin-port widgets for num ports for Pins enumerated
1054  *      Pin-port mux widgets to represent connenction list of pin widget
1055  *
1056  * For each port, one Mux and One output widget is added
1057  * Total widgets elements = num_cvt + (num_ports * 2);
1058  *
1059  * Routes are added as below:
1060  *      pin-port mux -> pin (based on num_ports)
1061  *      cvt -> "Input sel control" -> pin-port_mux
1062  *
1063  * Total route elements:
1064  *      num_ports + (pin_muxes * num_cvt)
1065  */
1066 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1067 {
1068         struct snd_soc_dapm_widget *widgets;
1069         struct snd_soc_dapm_route *route;
1070         struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
1071         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1072         struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
1073         char widget_name[NAME_SIZE];
1074         struct hdac_hdmi_cvt *cvt;
1075         struct hdac_hdmi_pin *pin;
1076         int ret, i = 0, num_routes = 0, j;
1077
1078         if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1079                 return -EINVAL;
1080
1081         widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1082                                 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1083                                 GFP_KERNEL);
1084
1085         if (!widgets)
1086                 return -ENOMEM;
1087
1088         /* DAPM widgets to represent each converter widget */
1089         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1090                 sprintf(widget_name, "Converter %d", cvt->nid);
1091                 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1092                         snd_soc_dapm_aif_in, cvt,
1093                         widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1094                         hdac_hdmi_cvt_output_widget_event,
1095                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1096                 if (ret < 0)
1097                         return ret;
1098                 i++;
1099         }
1100
1101         list_for_each_entry(pin, &hdmi->pin_list, head) {
1102                 for (j = 0; j < pin->num_ports; j++) {
1103                         sprintf(widget_name, "hif%d-%d Output",
1104                                 pin->nid, pin->ports[j].id);
1105                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1106                                         snd_soc_dapm_output, &pin->ports[j],
1107                                         widget_name, NULL, NULL, 0,
1108                                         hdac_hdmi_pin_output_widget_event,
1109                                         SND_SOC_DAPM_PRE_PMU |
1110                                         SND_SOC_DAPM_POST_PMD);
1111                         if (ret < 0)
1112                                 return ret;
1113                         pin->ports[j].output_pin = widgets[i].name;
1114                         i++;
1115                 }
1116         }
1117
1118         /* DAPM widgets to represent the connection list to pin widget */
1119         list_for_each_entry(pin, &hdmi->pin_list, head) {
1120                 for (j = 0; j < pin->num_ports; j++) {
1121                         sprintf(widget_name, "Pin%d-Port%d Mux",
1122                                 pin->nid, pin->ports[j].id);
1123                         ret = hdac_hdmi_create_pin_port_muxs(hdev,
1124                                                 &pin->ports[j], &widgets[i],
1125                                                 widget_name);
1126                         if (ret < 0)
1127                                 return ret;
1128                         i++;
1129
1130                         /* For cvt to pin_mux mapping */
1131                         num_routes += hdmi->num_cvt;
1132
1133                         /* For pin_mux to pin mapping */
1134                         num_routes++;
1135                 }
1136         }
1137
1138         route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1139                                                         GFP_KERNEL);
1140         if (!route)
1141                 return -ENOMEM;
1142
1143         i = 0;
1144         /* Add pin <- NULL <- mux route map */
1145         list_for_each_entry(pin, &hdmi->pin_list, head) {
1146                 for (j = 0; j < pin->num_ports; j++) {
1147                         int sink_index = i + hdmi->num_cvt;
1148                         int src_index = sink_index + pin->num_ports *
1149                                                 hdmi->num_pin;
1150
1151                         hdac_hdmi_fill_route(&route[i],
1152                                 widgets[sink_index].name, NULL,
1153                                 widgets[src_index].name, NULL);
1154                         i++;
1155                 }
1156         }
1157
1158         hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
1159
1160         snd_soc_dapm_new_controls(dapm, widgets,
1161                 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1162
1163         snd_soc_dapm_add_routes(dapm, route, num_routes);
1164         snd_soc_dapm_new_widgets(dapm->card);
1165
1166         return 0;
1167
1168 }
1169
1170 static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
1171 {
1172         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1173         struct hdac_hdmi_dai_port_map *dai_map;
1174         struct hdac_hdmi_cvt *cvt;
1175         int dai_id = 0;
1176
1177         if (list_empty(&hdmi->cvt_list))
1178                 return -EINVAL;
1179
1180         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1181                 dai_map = &hdmi->dai_map[dai_id];
1182                 dai_map->dai_id = dai_id;
1183                 dai_map->cvt = cvt;
1184
1185                 dai_id++;
1186
1187                 if (dai_id == HDA_MAX_CVTS) {
1188                         dev_warn(&hdev->dev,
1189                                 "Max dais supported: %d\n", dai_id);
1190                         break;
1191                 }
1192         }
1193
1194         return 0;
1195 }
1196
1197 static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
1198 {
1199         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1200         struct hdac_hdmi_cvt *cvt;
1201         char name[NAME_SIZE];
1202
1203         cvt = devm_kzalloc(&hdev->dev, sizeof(*cvt), GFP_KERNEL);
1204         if (!cvt)
1205                 return -ENOMEM;
1206
1207         cvt->nid = nid;
1208         sprintf(name, "cvt %d", cvt->nid);
1209         cvt->name = devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1210         if (!cvt->name)
1211                 return -ENOMEM;
1212
1213         list_add_tail(&cvt->head, &hdmi->cvt_list);
1214         hdmi->num_cvt++;
1215
1216         return hdac_hdmi_query_cvt_params(hdev, cvt);
1217 }
1218
1219 static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
1220                         struct hdac_hdmi_port *port)
1221 {
1222         unsigned int ver, mnl;
1223
1224         ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1225                                                 >> DRM_ELD_VER_SHIFT;
1226
1227         if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1228                 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
1229                 return -EINVAL;
1230         }
1231
1232         mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1233                 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1234
1235         if (mnl > ELD_MAX_MNL) {
1236                 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
1237                 return -EINVAL;
1238         }
1239
1240         port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1241
1242         return 0;
1243 }
1244
1245 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1246                                     struct hdac_hdmi_port *port)
1247 {
1248         struct hdac_device *hdev = pin->hdev;
1249         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1250         struct hdac_hdmi_pcm *pcm;
1251         int size = 0;
1252         int port_id = -1;
1253         bool eld_valid, eld_changed;
1254
1255         if (!hdmi)
1256                 return;
1257
1258         /*
1259          * In case of non MST pin, get_eld info API expectes port
1260          * to be -1.
1261          */
1262         mutex_lock(&hdmi->pin_mutex);
1263         port->eld.monitor_present = false;
1264
1265         if (pin->mst_capable)
1266                 port_id = port->id;
1267
1268         size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1269                                 &port->eld.monitor_present,
1270                                 port->eld.eld_buffer,
1271                                 ELD_MAX_SIZE);
1272
1273         if (size > 0) {
1274                 size = min(size, ELD_MAX_SIZE);
1275                 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1276                         size = -EINVAL;
1277         }
1278
1279         eld_valid = port->eld.eld_valid;
1280
1281         if (size > 0) {
1282                 port->eld.eld_valid = true;
1283                 port->eld.eld_size = size;
1284         } else {
1285                 port->eld.eld_valid = false;
1286                 port->eld.eld_size = 0;
1287         }
1288
1289         eld_changed = (eld_valid != port->eld.eld_valid);
1290
1291         pcm = hdac_hdmi_get_pcm(hdev, port);
1292
1293         if (!port->eld.monitor_present || !port->eld.eld_valid) {
1294
1295                 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1296                                                 __func__, pin->nid, port->id);
1297
1298                 /*
1299                  * PCMs are not registered during device probe, so don't
1300                  * report jack here. It will be done in usermode mux
1301                  * control select.
1302                  */
1303                 if (pcm) {
1304                         hdac_hdmi_jack_report(pcm, port, false);
1305                         schedule_work(&port->dapm_work);
1306                 }
1307
1308                 mutex_unlock(&hdmi->pin_mutex);
1309                 return;
1310         }
1311
1312         if (port->eld.monitor_present && port->eld.eld_valid) {
1313                 if (pcm) {
1314                         hdac_hdmi_jack_report(pcm, port, true);
1315                         schedule_work(&port->dapm_work);
1316                 }
1317
1318                 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1319                           port->eld.eld_buffer, port->eld.eld_size, false);
1320
1321         }
1322         mutex_unlock(&hdmi->pin_mutex);
1323
1324         if (eld_changed && pcm)
1325                 snd_ctl_notify(hdmi->card,
1326                                SNDRV_CTL_EVENT_MASK_VALUE |
1327                                SNDRV_CTL_EVENT_MASK_INFO,
1328                                &pcm->eld_ctl->id);
1329 }
1330
1331 static int hdac_hdmi_add_ports(struct hdac_device *hdev,
1332                                struct hdac_hdmi_pin *pin)
1333 {
1334         struct hdac_hdmi_port *ports;
1335         int max_ports = HDA_MAX_PORTS;
1336         int i;
1337
1338         /*
1339          * FIXME: max_port may vary for each platform, so pass this as
1340          * as driver data or query from i915 interface when this API is
1341          * implemented.
1342          */
1343
1344         ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL);
1345         if (!ports)
1346                 return -ENOMEM;
1347
1348         for (i = 0; i < max_ports; i++) {
1349                 ports[i].id = i;
1350                 ports[i].pin = pin;
1351                 INIT_WORK(&ports[i].dapm_work, hdac_hdmi_jack_dapm_work);
1352         }
1353         pin->ports = ports;
1354         pin->num_ports = max_ports;
1355         return 0;
1356 }
1357
1358 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1359 {
1360         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1361         struct hdac_hdmi_pin *pin;
1362         int ret;
1363
1364         pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL);
1365         if (!pin)
1366                 return -ENOMEM;
1367
1368         pin->nid = nid;
1369         pin->mst_capable = false;
1370         pin->hdev = hdev;
1371         ret = hdac_hdmi_add_ports(hdev, pin);
1372         if (ret < 0)
1373                 return ret;
1374
1375         list_add_tail(&pin->head, &hdmi->pin_list);
1376         hdmi->num_pin++;
1377         hdmi->num_ports += pin->num_ports;
1378
1379         return 0;
1380 }
1381
1382 #define INTEL_VENDOR_NID 0x08
1383 #define INTEL_GLK_VENDOR_NID 0x0b
1384 #define INTEL_GET_VENDOR_VERB 0xf81
1385 #define INTEL_SET_VENDOR_VERB 0x781
1386 #define INTEL_EN_DP12                   0x02 /* enable DP 1.2 features */
1387 #define INTEL_EN_ALL_PIN_CVTS   0x01 /* enable 2nd & 3rd pins and convertors */
1388
1389 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1390 {
1391         unsigned int vendor_param;
1392         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1393         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1394
1395         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1396                                 INTEL_GET_VENDOR_VERB, 0);
1397         if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1398                 return;
1399
1400         vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1401         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1402                                 INTEL_SET_VENDOR_VERB, vendor_param);
1403         if (vendor_param == -1)
1404                 return;
1405 }
1406
1407 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1408 {
1409         unsigned int vendor_param;
1410         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1411         unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1412
1413         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1414                                 INTEL_GET_VENDOR_VERB, 0);
1415         if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1416                 return;
1417
1418         /* enable DP1.2 mode */
1419         vendor_param |= INTEL_EN_DP12;
1420         vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1421                                 INTEL_SET_VENDOR_VERB, vendor_param);
1422         if (vendor_param == -1)
1423                 return;
1424
1425 }
1426
1427 static int hdac_hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
1428                              struct snd_ctl_elem_info *uinfo)
1429 {
1430         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
1431         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1432         struct hdac_hdmi_pcm *pcm;
1433         struct hdac_hdmi_port *port;
1434         struct hdac_hdmi_eld *eld;
1435
1436         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
1437         uinfo->count = 0;
1438
1439         pcm = get_hdmi_pcm_from_id(hdmi, kcontrol->id.device);
1440         if (!pcm) {
1441                 dev_dbg(component->dev, "%s: no pcm, device %d\n", __func__,
1442                         kcontrol->id.device);
1443                 return 0;
1444         }
1445
1446         if (list_empty(&pcm->port_list)) {
1447                 dev_dbg(component->dev, "%s: empty port list, device %d\n",
1448                         __func__, kcontrol->id.device);
1449                 return 0;
1450         }
1451
1452         mutex_lock(&hdmi->pin_mutex);
1453
1454         list_for_each_entry(port, &pcm->port_list, head) {
1455                 eld = &port->eld;
1456
1457                 if (eld->eld_valid) {
1458                         uinfo->count = eld->eld_size;
1459                         break;
1460                 }
1461         }
1462
1463         mutex_unlock(&hdmi->pin_mutex);
1464
1465         return 0;
1466 }
1467
1468 static int hdac_hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
1469                             struct snd_ctl_elem_value *ucontrol)
1470 {
1471         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
1472         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1473         struct hdac_hdmi_pcm *pcm;
1474         struct hdac_hdmi_port *port;
1475         struct hdac_hdmi_eld *eld;
1476
1477         memset(ucontrol->value.bytes.data, 0, sizeof(ucontrol->value.bytes.data));
1478
1479         pcm = get_hdmi_pcm_from_id(hdmi, kcontrol->id.device);
1480         if (!pcm) {
1481                 dev_dbg(component->dev, "%s: no pcm, device %d\n", __func__,
1482                         kcontrol->id.device);
1483                 return 0;
1484         }
1485
1486         if (list_empty(&pcm->port_list)) {
1487                 dev_dbg(component->dev, "%s: empty port list, device %d\n",
1488                         __func__, kcontrol->id.device);
1489                 return 0;
1490         }
1491
1492         mutex_lock(&hdmi->pin_mutex);
1493
1494         list_for_each_entry(port, &pcm->port_list, head) {
1495                 eld = &port->eld;
1496
1497                 if (!eld->eld_valid)
1498                         continue;
1499
1500                 if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data) ||
1501                     eld->eld_size > ELD_MAX_SIZE) {
1502                         mutex_unlock(&hdmi->pin_mutex);
1503
1504                         dev_err(component->dev, "%s: buffer too small, device %d eld_size %d\n",
1505                                 __func__, kcontrol->id.device, eld->eld_size);
1506                         snd_BUG();
1507                         return -EINVAL;
1508                 }
1509
1510                 memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
1511                        eld->eld_size);
1512                 break;
1513         }
1514
1515         mutex_unlock(&hdmi->pin_mutex);
1516
1517         return 0;
1518 }
1519
1520 static int hdac_hdmi_create_eld_ctl(struct snd_soc_component *component, struct hdac_hdmi_pcm *pcm)
1521 {
1522         struct snd_kcontrol *kctl;
1523         struct snd_kcontrol_new hdmi_eld_ctl = {
1524                 .access = SNDRV_CTL_ELEM_ACCESS_READ |
1525                           SNDRV_CTL_ELEM_ACCESS_VOLATILE,
1526                 .iface  = SNDRV_CTL_ELEM_IFACE_PCM,
1527                 .name   = "ELD",
1528                 .info   = hdac_hdmi_eld_ctl_info,
1529                 .get    = hdac_hdmi_eld_ctl_get,
1530                 .device = pcm->pcm_id,
1531         };
1532
1533         /* add ELD ctl with the device number corresponding to the PCM stream */
1534         kctl = snd_ctl_new1(&hdmi_eld_ctl, component);
1535         if (!kctl)
1536                 return -ENOMEM;
1537
1538         pcm->eld_ctl = kctl;
1539
1540         return snd_ctl_add(component->card->snd_card, kctl);
1541 }
1542
1543 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1544         .startup = hdac_hdmi_pcm_open,
1545         .shutdown = hdac_hdmi_pcm_close,
1546         .hw_params = hdac_hdmi_set_hw_params,
1547         .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1548 };
1549
1550 /*
1551  * Each converter can support a stream independently. So a dai is created
1552  * based on the number of converter queried.
1553  */
1554 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1555                 struct snd_soc_dai_driver **dais,
1556                 struct hdac_hdmi_priv *hdmi, int num_dais)
1557 {
1558         struct snd_soc_dai_driver *hdmi_dais;
1559         struct hdac_hdmi_cvt *cvt;
1560         char name[NAME_SIZE], dai_name[NAME_SIZE];
1561         int i = 0;
1562         u32 rates, bps;
1563         unsigned int rate_max = 384000, rate_min = 8000;
1564         u64 formats;
1565         int ret;
1566
1567         hdmi_dais = devm_kzalloc(&hdev->dev,
1568                         (sizeof(*hdmi_dais) * num_dais),
1569                         GFP_KERNEL);
1570         if (!hdmi_dais)
1571                 return -ENOMEM;
1572
1573         list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1574                 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1575                                         &rates, &formats, &bps);
1576                 if (ret)
1577                         return ret;
1578
1579                 /* Filter out 44.1, 88.2 and 176.4Khz */
1580                 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1581                            SNDRV_PCM_RATE_176400);
1582                 if (!rates)
1583                         return -EINVAL;
1584
1585                 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1586                 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1587                                         dai_name, GFP_KERNEL);
1588
1589                 if (!hdmi_dais[i].name)
1590                         return -ENOMEM;
1591
1592                 snprintf(name, sizeof(name), "hifi%d", i+1);
1593                 hdmi_dais[i].playback.stream_name =
1594                                 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1595                 if (!hdmi_dais[i].playback.stream_name)
1596                         return -ENOMEM;
1597
1598                 /*
1599                  * Set caps based on capability queried from the converter.
1600                  * It will be constrained runtime based on ELD queried.
1601                  */
1602                 hdmi_dais[i].playback.formats = formats;
1603                 hdmi_dais[i].playback.rates = rates;
1604                 hdmi_dais[i].playback.rate_max = rate_max;
1605                 hdmi_dais[i].playback.rate_min = rate_min;
1606                 hdmi_dais[i].playback.channels_min = 2;
1607                 hdmi_dais[i].playback.channels_max = 2;
1608                 hdmi_dais[i].playback.sig_bits = bps;
1609                 hdmi_dais[i].ops = &hdmi_dai_ops;
1610                 i++;
1611         }
1612
1613         *dais = hdmi_dais;
1614         hdmi->dai_drv = hdmi_dais;
1615
1616         return 0;
1617 }
1618
1619 /*
1620  * Parse all nodes and store the cvt/pin nids in array
1621  * Add one time initialization for pin and cvt widgets
1622  */
1623 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1624                 struct snd_soc_dai_driver **dais, int *num_dais)
1625 {
1626         hda_nid_t nid;
1627         int i, num_nodes;
1628         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1629         int ret;
1630
1631         hdac_hdmi_skl_enable_all_pins(hdev);
1632         hdac_hdmi_skl_enable_dp12(hdev);
1633
1634         num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1635         if (!nid || num_nodes <= 0) {
1636                 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1637                 return -EINVAL;
1638         }
1639
1640         for (i = 0; i < num_nodes; i++, nid++) {
1641                 unsigned int caps;
1642                 unsigned int type;
1643
1644                 caps = get_wcaps(hdev, nid);
1645                 type = get_wcaps_type(caps);
1646
1647                 if (!(caps & AC_WCAP_DIGITAL))
1648                         continue;
1649
1650                 switch (type) {
1651
1652                 case AC_WID_AUD_OUT:
1653                         ret = hdac_hdmi_add_cvt(hdev, nid);
1654                         if (ret < 0)
1655                                 return ret;
1656                         break;
1657
1658                 case AC_WID_PIN:
1659                         ret = hdac_hdmi_add_pin(hdev, nid);
1660                         if (ret < 0)
1661                                 return ret;
1662                         break;
1663                 }
1664         }
1665
1666         if (!hdmi->num_pin || !hdmi->num_cvt) {
1667                 ret = -EIO;
1668                 dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__);
1669                 return ret;
1670         }
1671
1672         ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1673         if (ret) {
1674                 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1675                         ret);
1676                 return ret;
1677         }
1678
1679         *num_dais = hdmi->num_cvt;
1680         ret = hdac_hdmi_init_dai_map(hdev);
1681         if (ret < 0)
1682                 dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n",
1683                         ret);
1684         return ret;
1685 }
1686
1687 static int hdac_hdmi_pin2port(void *aptr, int pin)
1688 {
1689         return pin - 4; /* map NID 0x05 -> port #1 */
1690 }
1691
1692 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1693 {
1694         struct hdac_device *hdev = aptr;
1695         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1696         struct hdac_hdmi_pin *pin;
1697         struct hdac_hdmi_port *hport = NULL;
1698         struct snd_soc_component *component = hdmi->component;
1699         int i;
1700
1701         /* Don't know how this mapping is derived */
1702         hda_nid_t pin_nid = port + 0x04;
1703
1704         dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1705                                                         pin_nid, pipe);
1706
1707         /*
1708          * skip notification during system suspend (but not in runtime PM);
1709          * the state will be updated at resume. Also since the ELD and
1710          * connection states are updated in anyway at the end of the resume,
1711          * we can skip it when received during PM process.
1712          */
1713         if (snd_power_get_state(component->card->snd_card) !=
1714                         SNDRV_CTL_POWER_D0)
1715                 return;
1716
1717         if (atomic_read(&hdev->in_pm))
1718                 return;
1719
1720         list_for_each_entry(pin, &hdmi->pin_list, head) {
1721                 if (pin->nid != pin_nid)
1722                         continue;
1723
1724                 /* In case of non MST pin, pipe is -1 */
1725                 if (pipe == -1) {
1726                         pin->mst_capable = false;
1727                         /* if not MST, default is port[0] */
1728                         hport = &pin->ports[0];
1729                 } else {
1730                         for (i = 0; i < pin->num_ports; i++) {
1731                                 pin->mst_capable = true;
1732                                 if (pin->ports[i].id == pipe) {
1733                                         hport = &pin->ports[i];
1734                                         break;
1735                                 }
1736                         }
1737                 }
1738
1739                 if (hport)
1740                         hdac_hdmi_present_sense(pin, hport);
1741         }
1742
1743 }
1744
1745 static struct drm_audio_component_audio_ops aops = {
1746         .pin2port       = hdac_hdmi_pin2port,
1747         .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1748 };
1749
1750 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1751                                                 int device)
1752 {
1753         struct snd_soc_pcm_runtime *rtd;
1754
1755         for_each_card_rtds(card, rtd) {
1756                 if (rtd->pcm && (rtd->pcm->device == device))
1757                         return rtd->pcm;
1758         }
1759
1760         return NULL;
1761 }
1762
1763 /* create jack pin kcontrols */
1764 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1765                                     struct hdac_device *hdev)
1766 {
1767         struct hdac_hdmi_pin *pin;
1768         struct snd_kcontrol_new *kc;
1769         char kc_name[NAME_SIZE], xname[NAME_SIZE];
1770         char *name;
1771         int i = 0, j;
1772         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1773         struct snd_soc_component *component = hdmi->component;
1774
1775         kc = devm_kcalloc(component->dev, hdmi->num_ports,
1776                                 sizeof(*kc), GFP_KERNEL);
1777
1778         if (!kc)
1779                 return -ENOMEM;
1780
1781         list_for_each_entry(pin, &hdmi->pin_list, head) {
1782                 for (j = 0; j < pin->num_ports; j++) {
1783                         snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1784                                                 pin->nid, pin->ports[j].id);
1785                         name = devm_kstrdup(component->dev, xname, GFP_KERNEL);
1786                         if (!name)
1787                                 return -ENOMEM;
1788                         snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1789                         kc[i].name = devm_kstrdup(component->dev, kc_name,
1790                                                         GFP_KERNEL);
1791                         if (!kc[i].name)
1792                                 return -ENOMEM;
1793
1794                         kc[i].private_value = (unsigned long)name;
1795                         kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1796                         kc[i].access = 0;
1797                         kc[i].info = snd_soc_dapm_info_pin_switch;
1798                         kc[i].put = snd_soc_dapm_put_pin_switch;
1799                         kc[i].get = snd_soc_dapm_get_pin_switch;
1800                         i++;
1801                 }
1802         }
1803
1804         return snd_soc_add_card_controls(card, kc, i);
1805 }
1806
1807 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1808                         struct snd_soc_dapm_context *dapm)
1809 {
1810         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1811         struct hdac_device *hdev = hdmi->hdev;
1812         struct hdac_hdmi_pin *pin;
1813         struct snd_soc_dapm_widget *widgets;
1814         struct snd_soc_dapm_route *route;
1815         char w_name[NAME_SIZE];
1816         int i = 0, j, ret;
1817
1818         widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1819                                 sizeof(*widgets), GFP_KERNEL);
1820
1821         if (!widgets)
1822                 return -ENOMEM;
1823
1824         route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1825                                 sizeof(*route), GFP_KERNEL);
1826         if (!route)
1827                 return -ENOMEM;
1828
1829         /* create Jack DAPM widget */
1830         list_for_each_entry(pin, &hdmi->pin_list, head) {
1831                 for (j = 0; j < pin->num_ports; j++) {
1832                         snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1833                                                 pin->nid, pin->ports[j].id);
1834
1835                         ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1836                                         snd_soc_dapm_spk, NULL,
1837                                         w_name, NULL, NULL, 0, NULL, 0);
1838                         if (ret < 0)
1839                                 return ret;
1840
1841                         pin->ports[j].jack_pin = widgets[i].name;
1842                         pin->ports[j].dapm = dapm;
1843
1844                         /* add to route from Jack widget to output */
1845                         hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1846                                         NULL, pin->ports[j].output_pin, NULL);
1847
1848                         i++;
1849                 }
1850         }
1851
1852         /* Add Route from Jack widget to the output widget */
1853         ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1854         if (ret < 0)
1855                 return ret;
1856
1857         ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1858         if (ret < 0)
1859                 return ret;
1860
1861         ret = snd_soc_dapm_new_widgets(dapm->card);
1862         if (ret < 0)
1863                 return ret;
1864
1865         /* Add Jack Pin switch Kcontrol */
1866         ret = create_fill_jack_kcontrols(dapm->card, hdev);
1867
1868         if (ret < 0)
1869                 return ret;
1870
1871         /* default set the Jack Pin switch to OFF */
1872         list_for_each_entry(pin, &hdmi->pin_list, head) {
1873                 for (j = 0; j < pin->num_ports; j++)
1874                         snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1875                                                 pin->ports[j].jack_pin);
1876         }
1877
1878         return 0;
1879 }
1880 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1881
1882 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1883                                 struct snd_soc_jack *jack)
1884 {
1885         struct snd_soc_component *component = dai->component;
1886         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1887         struct hdac_device *hdev = hdmi->hdev;
1888         struct hdac_hdmi_pcm *pcm;
1889         struct snd_pcm *snd_pcm;
1890         int err;
1891
1892         /*
1893          * this is a new PCM device, create new pcm and
1894          * add to the pcm list
1895          */
1896         pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL);
1897         if (!pcm)
1898                 return -ENOMEM;
1899         pcm->pcm_id = device;
1900         pcm->cvt = hdmi->dai_map[dai->id].cvt;
1901         pcm->jack_event = 0;
1902         pcm->jack = jack;
1903         mutex_init(&pcm->lock);
1904         INIT_LIST_HEAD(&pcm->port_list);
1905         snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1906         if (snd_pcm) {
1907                 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1908                 if (err < 0) {
1909                         dev_err(&hdev->dev,
1910                                 "chmap control add failed with err: %d for pcm: %d\n",
1911                                 err, device);
1912                         return err;
1913                 }
1914         }
1915
1916         /* add control for ELD Bytes */
1917         err = hdac_hdmi_create_eld_ctl(component, pcm);
1918         if (err < 0) {
1919                 dev_err(&hdev->dev,
1920                         "eld control add failed with err: %d for pcm: %d\n",
1921                         err, device);
1922                 return err;
1923         }
1924
1925         list_add_tail(&pcm->head, &hdmi->pcm_list);
1926
1927         return 0;
1928 }
1929 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1930
1931 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1932                         struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1933 {
1934         int i;
1935         struct hdac_hdmi_pin *pin;
1936
1937         list_for_each_entry(pin, &hdmi->pin_list, head) {
1938                 if (detect_pin_caps) {
1939
1940                         if (hdac_hdmi_get_port_len(hdev, pin->nid)  == 0)
1941                                 pin->mst_capable = false;
1942                         else
1943                                 pin->mst_capable = true;
1944                 }
1945
1946                 for (i = 0; i < pin->num_ports; i++) {
1947                         if (!pin->mst_capable && i > 0)
1948                                 continue;
1949
1950                         hdac_hdmi_present_sense(pin, &pin->ports[i]);
1951                 }
1952         }
1953 }
1954
1955 static int hdmi_codec_probe(struct snd_soc_component *component)
1956 {
1957         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1958         struct hdac_device *hdev = hdmi->hdev;
1959         struct snd_soc_dapm_context *dapm =
1960                 snd_soc_component_get_dapm(component);
1961         struct hdac_ext_link *hlink;
1962         int ret;
1963
1964         hdmi->component = component;
1965
1966         /*
1967          * hold the ref while we probe, also no need to drop the ref on
1968          * exit, we call pm_runtime_suspend() so that will do for us
1969          */
1970         hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
1971         if (!hlink) {
1972                 dev_err(&hdev->dev, "hdac link not found\n");
1973                 return -EIO;
1974         }
1975
1976         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1977
1978         ret = create_fill_widget_route_map(dapm);
1979         if (ret < 0)
1980                 return ret;
1981
1982         aops.audio_ptr = hdev;
1983         ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1984         if (ret < 0) {
1985                 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1986                 return ret;
1987         }
1988
1989         hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1990         /* Imp: Store the card pointer in hda_codec */
1991         hdmi->card = dapm->card->snd_card;
1992
1993         /*
1994          * Setup a device_link between card device and HDMI codec device.
1995          * The card device is the consumer and the HDMI codec device is
1996          * the supplier. With this setting, we can make sure that the audio
1997          * domain in display power will be always turned on before operating
1998          * on the HDMI audio codec registers.
1999          * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make
2000          * sure the device link is freed when the machine driver is removed.
2001          */
2002         device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE |
2003                         DL_FLAG_AUTOREMOVE_CONSUMER);
2004         /*
2005          * hdac_device core already sets the state to active and calls
2006          * get_noresume. So enable runtime and set the device to suspend.
2007          */
2008         pm_runtime_enable(&hdev->dev);
2009         pm_runtime_put(&hdev->dev);
2010         pm_runtime_suspend(&hdev->dev);
2011
2012         return 0;
2013 }
2014
2015 static void hdmi_codec_remove(struct snd_soc_component *component)
2016 {
2017         struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
2018         struct hdac_device *hdev = hdmi->hdev;
2019         int ret;
2020
2021         ret = snd_hdac_acomp_register_notifier(hdev->bus, NULL);
2022         if (ret < 0)
2023                 dev_err(&hdev->dev, "notifier unregister failed: err: %d\n",
2024                                 ret);
2025
2026         pm_runtime_disable(&hdev->dev);
2027 }
2028
2029 #ifdef CONFIG_PM_SLEEP
2030 static int hdmi_codec_resume(struct device *dev)
2031 {
2032         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2033         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2034         int ret;
2035
2036         ret = pm_runtime_force_resume(dev);
2037         if (ret < 0)
2038                 return ret;
2039         /*
2040          * As the ELD notify callback request is not entertained while the
2041          * device is in suspend state. Need to manually check detection of
2042          * all pins here. pin capablity change is not support, so use the
2043          * already set pin caps.
2044          *
2045          * NOTE: this is safe to call even if the codec doesn't actually resume.
2046          * The pin check involves only with DRM audio component hooks, so it
2047          * works even if the HD-audio side is still dreaming peacefully.
2048          */
2049         hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
2050         return 0;
2051 }
2052 #else
2053 #define hdmi_codec_resume NULL
2054 #endif
2055
2056 static const struct snd_soc_component_driver hdmi_hda_codec = {
2057         .probe                  = hdmi_codec_probe,
2058         .remove                 = hdmi_codec_remove,
2059         .use_pmdown_time        = 1,
2060         .endianness             = 1,
2061 };
2062
2063 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
2064                                         unsigned char *chmap)
2065 {
2066         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2067         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2068
2069         memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
2070 }
2071
2072 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
2073                                 unsigned char *chmap, int prepared)
2074 {
2075         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2076         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2077         struct hdac_hdmi_port *port;
2078
2079         if (!pcm)
2080                 return;
2081
2082         if (list_empty(&pcm->port_list))
2083                 return;
2084
2085         mutex_lock(&pcm->lock);
2086         pcm->chmap_set = true;
2087         memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
2088         list_for_each_entry(port, &pcm->port_list, head)
2089                 if (prepared)
2090                         hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
2091         mutex_unlock(&pcm->lock);
2092 }
2093
2094 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
2095 {
2096         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2097         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2098
2099         if (!pcm)
2100                 return false;
2101
2102         if (list_empty(&pcm->port_list))
2103                 return false;
2104
2105         return true;
2106 }
2107
2108 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
2109 {
2110         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2111         struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2112         struct hdac_hdmi_port *port;
2113
2114         if (!pcm)
2115                 return 0;
2116
2117         if (list_empty(&pcm->port_list))
2118                 return 0;
2119
2120         port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
2121
2122         if (!port || !port->eld.eld_valid)
2123                 return 0;
2124
2125         return port->eld.info.spk_alloc;
2126 }
2127
2128 static struct hdac_hdmi_drv_data intel_glk_drv_data  = {
2129         .vendor_nid = INTEL_GLK_VENDOR_NID,
2130 };
2131
2132 static struct hdac_hdmi_drv_data intel_drv_data  = {
2133         .vendor_nid = INTEL_VENDOR_NID,
2134 };
2135
2136 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
2137 {
2138         struct hdac_hdmi_priv *hdmi_priv;
2139         struct snd_soc_dai_driver *hdmi_dais = NULL;
2140         struct hdac_ext_link *hlink;
2141         int num_dais = 0;
2142         int ret;
2143         struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
2144         const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
2145
2146         /* hold the ref while we probe */
2147         hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
2148         if (!hlink) {
2149                 dev_err(&hdev->dev, "hdac link not found\n");
2150                 return -EIO;
2151         }
2152
2153         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2154
2155         hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2156         if (hdmi_priv == NULL)
2157                 return -ENOMEM;
2158
2159         snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2160         hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2161         hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2162         hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2163         hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2164         hdmi_priv->hdev = hdev;
2165
2166         if (!hdac_id)
2167                 return -ENODEV;
2168
2169         if (hdac_id->driver_data)
2170                 hdmi_priv->drv_data =
2171                         (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2172         else
2173                 hdmi_priv->drv_data = &intel_drv_data;
2174
2175         dev_set_drvdata(&hdev->dev, hdmi_priv);
2176
2177         INIT_LIST_HEAD(&hdmi_priv->pin_list);
2178         INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2179         INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2180         mutex_init(&hdmi_priv->pin_mutex);
2181
2182         /*
2183          * Turned off in the runtime_suspend during the first explicit
2184          * pm_runtime_suspend call.
2185          */
2186         snd_hdac_display_power(hdev->bus, hdev->addr, true);
2187
2188         ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2189         if (ret < 0) {
2190                 dev_err(&hdev->dev,
2191                         "Failed in parse and map nid with err: %d\n", ret);
2192                 return ret;
2193         }
2194         snd_hdac_refresh_widgets(hdev);
2195
2196         /* ASoC specific initialization */
2197         ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2198                                         hdmi_dais, num_dais);
2199
2200         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2201
2202         return ret;
2203 }
2204
2205 static void clear_dapm_works(struct hdac_device *hdev)
2206 {
2207         struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2208         struct hdac_hdmi_pin *pin;
2209         int i;
2210
2211         list_for_each_entry(pin, &hdmi->pin_list, head)
2212                 for (i = 0; i < pin->num_ports; i++)
2213                         cancel_work_sync(&pin->ports[i].dapm_work);
2214 }
2215
2216 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2217 {
2218         clear_dapm_works(hdev);
2219         snd_hdac_display_power(hdev->bus, hdev->addr, false);
2220
2221         return 0;
2222 }
2223
2224 #ifdef CONFIG_PM
2225 static int hdac_hdmi_runtime_suspend(struct device *dev)
2226 {
2227         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2228         struct hdac_bus *bus = hdev->bus;
2229         struct hdac_ext_link *hlink;
2230
2231         dev_dbg(dev, "Enter: %s\n", __func__);
2232
2233         /* controller may not have been initialized for the first time */
2234         if (!bus)
2235                 return 0;
2236
2237         /*
2238          * Power down afg.
2239          * codec_read is preferred over codec_write to set the power state.
2240          * This way verb is send to set the power state and response
2241          * is received. So setting power state is ensured without using loop
2242          * to read the state.
2243          */
2244         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2245                                                         AC_PWRST_D3);
2246
2247         hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, dev_name(dev));
2248         if (!hlink) {
2249                 dev_err(dev, "hdac link not found\n");
2250                 return -EIO;
2251         }
2252
2253         snd_hdac_codec_link_down(hdev);
2254         snd_hdac_ext_bus_link_put(bus, hlink);
2255
2256         snd_hdac_display_power(bus, hdev->addr, false);
2257
2258         return 0;
2259 }
2260
2261 static int hdac_hdmi_runtime_resume(struct device *dev)
2262 {
2263         struct hdac_device *hdev = dev_to_hdac_dev(dev);
2264         struct hdac_bus *bus = hdev->bus;
2265         struct hdac_ext_link *hlink;
2266
2267         dev_dbg(dev, "Enter: %s\n", __func__);
2268
2269         /* controller may not have been initialized for the first time */
2270         if (!bus)
2271                 return 0;
2272
2273         hlink = snd_hdac_ext_bus_get_hlink_by_name(bus, dev_name(dev));
2274         if (!hlink) {
2275                 dev_err(dev, "hdac link not found\n");
2276                 return -EIO;
2277         }
2278
2279         snd_hdac_ext_bus_link_get(bus, hlink);
2280         snd_hdac_codec_link_up(hdev);
2281
2282         snd_hdac_display_power(bus, hdev->addr, true);
2283
2284         hdac_hdmi_skl_enable_all_pins(hdev);
2285         hdac_hdmi_skl_enable_dp12(hdev);
2286
2287         /* Power up afg */
2288         snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2289                                                         AC_PWRST_D0);
2290
2291         return 0;
2292 }
2293 #else
2294 #define hdac_hdmi_runtime_suspend NULL
2295 #define hdac_hdmi_runtime_resume NULL
2296 #endif
2297
2298 static const struct dev_pm_ops hdac_hdmi_pm = {
2299         SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2300         SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume)
2301 };
2302
2303 static const struct hda_device_id hdmi_list[] = {
2304         HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2305         HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2306         HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2307         HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2308                                                    &intel_glk_drv_data),
2309         HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2310                                                    &intel_glk_drv_data),
2311         {}
2312 };
2313
2314 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2315
2316 static struct hdac_driver hdmi_driver = {
2317         .driver = {
2318                 .name   = "HDMI HDA Codec",
2319                 .pm = &hdac_hdmi_pm,
2320         },
2321         .id_table       = hdmi_list,
2322         .probe          = hdac_hdmi_dev_probe,
2323         .remove         = hdac_hdmi_dev_remove,
2324 };
2325
2326 static int __init hdmi_init(void)
2327 {
2328         return snd_hda_ext_driver_register(&hdmi_driver);
2329 }
2330
2331 static void __exit hdmi_exit(void)
2332 {
2333         snd_hda_ext_driver_unregister(&hdmi_driver);
2334 }
2335
2336 module_init(hdmi_init);
2337 module_exit(hdmi_exit);
2338
2339 MODULE_LICENSE("GPL v2");
2340 MODULE_DESCRIPTION("HDMI HD codec");
2341 MODULE_AUTHOR("Samreen Nilofer<[email protected]>");
2342 MODULE_AUTHOR("Subhransu S. Prusty<[email protected]>");