drivers/video/rockchip/hdmi/rockchip-hdmi-core.c

   1 #include <linux/delay.h>
   2 #include <sound/pcm_params.h>
   3 #include "rockchip-hdmi.h"
   4 #include "rockchip-hdmi-cec.h"
   5
   6 struct hdmi_delayed_work {
   7         struct delayed_work work;
   8         struct hdmi *hdmi;
   9         int event;
  10         void *data;
  11 };
  12
  13 struct hdmi_id_ref_info {
  14         struct hdmi *hdmi;
  15         int id;
  16         int ref;
  17 } ref_info[HDMI_MAX_ID];
  18
  19 static int uboot_vic;
  20 static void hdmi_work_queue(struct work_struct *work);
  21
  22 struct delayed_work *hdmi_submit_work(struct hdmi *hdmi,
  23                                       int event, int delay, void *data)
  24 {
  25         struct hdmi_delayed_work *work;
  26
  27         DBG("%s event %04x delay %d\n", __func__, event, delay);
  28
  29         work = kmalloc(sizeof(*work), GFP_ATOMIC);
  30
  31         if (work) {
  32                 INIT_DELAYED_WORK(&work->work, hdmi_work_queue);
  33                 work->hdmi = hdmi;
  34                 work->event = event;
  35                 work->data = data;
  36                 queue_delayed_work(hdmi->workqueue,
  37                                    &work->work,
  38                                    msecs_to_jiffies(delay));
  39         } else {
  40                 pr_warn("HDMI: Cannot allocate memory to create work\n");
  41                 return 0;
  42         }
  43
  44         return &work->work;
  45 }
  46
  47 static void hdmi_send_uevent(struct hdmi *hdmi, int uevent)
  48 {
  49         char *envp[3];
  50
  51         envp[0] = "INTERFACE=HDMI";
  52         envp[1] = kmalloc(32, GFP_KERNEL);
  53         if (envp[1] == NULL)
  54                 return;
  55         sprintf(envp[1], "SCREEN=%d", hdmi->ddev->property);
  56         envp[2] = NULL;
  57         kobject_uevent_env(&hdmi->ddev->dev->kobj, uevent, envp);
  58         kfree(envp[1]);
  59 }
  60
  61 static inline void hdmi_wq_set_output(struct hdmi *hdmi, int mute)
  62 {
  63         DBG("%s mute %d\n", __func__, mute);
  64         if (hdmi->ops->setmute)
  65                 hdmi->ops->setmute(hdmi, mute);
  66 }
  67
  68 static inline void hdmi_wq_set_audio(struct hdmi *hdmi)
  69 {
  70         DBG("%s\n", __func__);
  71         if (hdmi->ops->setaudio)
  72                 hdmi->ops->setaudio(hdmi, &hdmi->audio);
  73 }
  74
  75 static void hdmi_wq_set_video(struct hdmi *hdmi)
  76 {
  77         struct hdmi_video       video;
  78         int     deepcolor;
  79
  80         DBG("%s\n", __func__);
  81
  82         video.vic = hdmi->vic & HDMI_VIC_MASK;
  83         video.sink_hdmi = hdmi->edid.sink_hdmi;
  84         video.format_3d = hdmi->mode_3d;
  85         video.colorimetry = hdmi->colorimetry;
  86         /* For DVI, output RGB */
  87         if (hdmi->edid.sink_hdmi == 0) {
  88                 video.color_output = HDMI_COLOR_RGB_0_255;
  89         } else {
  90                 if (hdmi->colormode == HDMI_COLOR_AUTO) {
  91                         if (hdmi->edid.ycbcr444)
  92                                 video.color_output = HDMI_COLOR_YCBCR444;
  93                         else if (hdmi->edid.ycbcr422)
  94                                 video.color_output = HDMI_COLOR_YCBCR422;
  95                         else
  96                                 video.color_output = HDMI_COLOR_RGB_16_235;
  97                 } else {
  98                         video.color_output = hdmi->colormode;
  99                 }
 100         }
 101         if (hdmi->vic & HDMI_VIDEO_YUV420) {
 102                 video.color_output = HDMI_COLOR_YCBCR420;
 103                 deepcolor = hdmi->edid.deepcolor_420;
 104         } else {
 105                 deepcolor = hdmi->edid.deepcolor;
 106         }
 107         if ((hdmi->property->feature & SUPPORT_DEEP_10BIT) &&
 108             (deepcolor & HDMI_DEEP_COLOR_30BITS)) {
 109                 if (hdmi->colordepth == HDMI_DEPP_COLOR_AUTO ||
 110                     hdmi->colordepth == 10)
 111                         video.color_output_depth = 10;
 112         } else {
 113                 video.color_output_depth = 8;
 114         }
 115
 116         pr_info("hdmi output corlor mode is %d\n", video.color_output);
 117         video.color_input = HDMI_COLOR_RGB_0_255;
 118         if (hdmi->property->feature & SUPPORT_YCBCR_INPUT) {
 119                 if (video.color_output == HDMI_COLOR_YCBCR444 ||
 120                     video.color_output == HDMI_COLOR_YCBCR422)
 121                         video.color_input = HDMI_COLOR_YCBCR444;
 122                 else if (video.color_output == HDMI_COLOR_YCBCR420)
 123                         video.color_input = HDMI_COLOR_YCBCR420;
 124         }
 125         hdmi->colormode_input = video.color_input;
 126         hdmi_set_lcdc(hdmi);
 127         if (hdmi->ops->setvideo)
 128                 hdmi->ops->setvideo(hdmi, &video);
 129 }
 130
 131 static void hdmi_wq_parse_edid(struct hdmi *hdmi)
 132 {
 133         struct hdmi_edid *pedid;
 134
 135         int rc = HDMI_ERROR_SUCESS, extendblock = 0, i, trytimes;
 136
 137         if (hdmi == NULL)
 138                 return;
 139
 140         DBG("%s\n", __func__);
 141
 142         pedid = &(hdmi->edid);
 143         fb_destroy_modelist(&pedid->modelist);
 144         memset(pedid, 0, sizeof(struct hdmi_edid));
 145         INIT_LIST_HEAD(&pedid->modelist);
 146
 147         pedid->raw[0] = kmalloc(HDMI_EDID_BLOCK_SIZE, GFP_KERNEL);
 148         if (pedid->raw[0] == NULL) {
 149                 dev_err(hdmi->dev,
 150                         "[%s] can not allocate memory for edid buff.\n",
 151                         __func__);
 152                 rc = HDMI_ERROR_FALSE;
 153                 goto out;
 154         }
 155
 156         if (hdmi->ops->getedid == NULL) {
 157                 rc = HDMI_ERROR_FALSE;
 158                 goto out;
 159         }
 160
 161         /* Read base block edid.*/
 162         for (trytimes = 0; trytimes < 3; trytimes++) {
 163                 if (trytimes)
 164                         msleep(50);
 165                 memset(pedid->raw[0], 0 , HDMI_EDID_BLOCK_SIZE);
 166                 rc = hdmi->ops->getedid(hdmi, 0, pedid->raw[0]);
 167                 if (rc) {
 168                         dev_err(hdmi->dev,
 169                                 "[HDMI] read edid base block error\n");
 170                         continue;
 171                 }
 172
 173                 rc = hdmi_edid_parse_base(pedid->raw[0], &extendblock, pedid);
 174                 if (rc) {
 175                         dev_err(hdmi->dev,
 176                                 "[HDMI] parse edid base block error\n");
 177                         continue;
 178                 }
 179                 if (!rc)
 180                         break;
 181         }
 182         if (rc)
 183                 goto out;
 184
 185         for (i = 1; (i < extendblock + 1) && (i < HDMI_MAX_EDID_BLOCK); i++) {
 186                 pedid->raw[i] = kmalloc(HDMI_EDID_BLOCK_SIZE, GFP_KERNEL);
 187                 if (pedid->raw[i] == NULL) {
 188                         dev_err(hdmi->dev,
 189                                 "[%s] can not allocate memory for edid buff.\n",
 190                                 __func__);
 191                         rc = HDMI_ERROR_FALSE;
 192                         goto out;
 193                 }
 194                 for (trytimes = 0; trytimes < 3; trytimes++) {
 195                         if (trytimes)
 196                                 msleep(20);
 197                         memset(pedid->raw[i], 0 , HDMI_EDID_BLOCK_SIZE);
 198                         rc = hdmi->ops->getedid(hdmi, i, pedid->raw[i]);
 199                         if (rc) {
 200                                 dev_err(hdmi->dev,
 201                                         "[HDMI] read edid block %d error\n",
 202                                         i);
 203                                 continue;
 204                         }
 205
 206                         rc = hdmi_edid_parse_extensions(pedid->raw[i], pedid);
 207                         if (rc) {
 208                                 dev_err(hdmi->dev,
 209                                         "[HDMI] parse edid block %d error\n",
 210                                         i);
 211                                 continue;
 212                         }
 213
 214                         if (!rc)
 215                                 break;
 216                 }
 217         }
 218 out:
 219         rc = hdmi_ouputmode_select(hdmi, rc);
 220 }
 221
 222 static void hdmi_wq_insert(struct hdmi *hdmi)
 223 {
 224         DBG("%s\n", __func__);
 225         if (hdmi->ops->insert)
 226                 hdmi->ops->insert(hdmi);
 227         hdmi_wq_parse_edid(hdmi);
 228         if (hdmi->property->feature & SUPPORT_CEC)
 229                 rockchip_hdmi_cec_set_pa(hdmi->edid.cecaddress);
 230         hdmi_send_uevent(hdmi, KOBJ_ADD);
 231         if (hdmi->enable) {
 232                 /*hdmi->autoset = 0;*/
 233                 hdmi_wq_set_video(hdmi);
 234                 #ifdef CONFIG_SWITCH
 235                 switch_set_state(&(hdmi->switchdev), 1);
 236                 #endif
 237                 hdmi_wq_set_audio(hdmi);
 238                 hdmi_wq_set_output(hdmi, hdmi->mute);
 239                 hdmi_submit_work(hdmi, HDMI_ENABLE_HDCP, 100, NULL);
 240                 if (hdmi->ops->setcec)
 241                         hdmi->ops->setcec(hdmi);
 242         }
 243         if (hdmi->uboot)
 244                 hdmi->uboot = 0;
 245 }
 246
 247 static void hdmi_wq_remove(struct hdmi *hdmi)
 248 {
 249         struct list_head *pos, *n;
 250         struct rk_screen screen;
 251         int i;
 252
 253         DBG("%s\n", __func__);
 254         if (hdmi->ops->remove)
 255                 hdmi->ops->remove(hdmi);
 256         if (hdmi->hotplug == HDMI_HPD_ACTIVED) {
 257                 screen.type = SCREEN_HDMI;
 258                 rk_fb_switch_screen(&screen, 0, hdmi->lcdc->id);
 259         }
 260         #ifdef CONFIG_SWITCH
 261         switch_set_state(&(hdmi->switchdev), 0);
 262         #endif
 263         mutex_lock(&hdmi->ddev->lock);
 264         list_for_each_safe(pos, n, &hdmi->edid.modelist) {
 265                 list_del(pos);
 266                 kfree(pos);
 267         }
 268         mutex_unlock(&hdmi->ddev->lock);
 269         for (i = 0; i < HDMI_MAX_EDID_BLOCK; i++)
 270                 kfree(hdmi->edid.raw[i]);
 271         kfree(hdmi->edid.audio);
 272         if (hdmi->edid.specs) {
 273                 kfree(hdmi->edid.specs->modedb);
 274                 kfree(hdmi->edid.specs);
 275         }
 276         memset(&hdmi->edid, 0, sizeof(struct hdmi_edid));
 277         hdmi_init_modelist(hdmi);
 278         hdmi->mute      = HDMI_AV_UNMUTE;
 279         hdmi->mode_3d = HDMI_3D_NONE;
 280         hdmi->uboot = 0;
 281         hdmi->hotplug = HDMI_HPD_REMOVED;
 282         hdmi_send_uevent(hdmi, KOBJ_REMOVE);
 283 }
 284
 285 static void hdmi_work_queue(struct work_struct *work)
 286 {
 287         struct hdmi_delayed_work *hdmi_w =
 288                 container_of(work, struct hdmi_delayed_work, work.work);
 289         struct hdmi *hdmi = hdmi_w->hdmi;
 290         int event = hdmi_w->event;
 291         int hpd = HDMI_HPD_REMOVED;
 292
 293         mutex_lock(&hdmi->lock);
 294
 295         DBG("\nhdmi_work_queue() - evt= %x %d\n",
 296             (event & 0xFF00) >> 8,
 297             event & 0xFF);
 298
 299         switch (event) {
 300         case HDMI_ENABLE_CTL:
 301                 if (!hdmi->enable) {
 302                         hdmi->enable = 1;
 303                         if (!hdmi->sleep) {
 304                                 if (hdmi->ops->enable)
 305                                         hdmi->ops->enable(hdmi);
 306                                 if (hdmi->hotplug == HDMI_HPD_ACTIVED)
 307                                         hdmi_wq_insert(hdmi);
 308                         }
 309                 }
 310                 break;
 311         case HDMI_RESUME_CTL:
 312                 if (hdmi->sleep) {
 313                         if (hdmi->ops->enable)
 314                                 hdmi->ops->enable(hdmi);
 315                         hdmi->sleep = 0;
 316                 }
 317                 break;
 318         case HDMI_DISABLE_CTL:
 319                 if (hdmi->enable) {
 320                         if (hdmi->hotplug == HDMI_HPD_ACTIVED)
 321                                 hdmi_wq_set_output(hdmi,
 322                                                    HDMI_VIDEO_MUTE |
 323                                                    HDMI_AUDIO_MUTE);
 324                         if (!hdmi->sleep) {
 325                                 if (hdmi->ops->disable)
 326                                         hdmi->ops->disable(hdmi);
 327                                 hdmi_wq_remove(hdmi);
 328                         }
 329                         hdmi->enable = 0;
 330                 }
 331                 break;
 332         case HDMI_SUSPEND_CTL:
 333                 if (!hdmi->sleep) {
 334                         if (hdmi->hotplug == HDMI_HPD_ACTIVED)
 335                                 hdmi_wq_set_output(hdmi,
 336                                                    HDMI_VIDEO_MUTE |
 337                                                    HDMI_AUDIO_MUTE);
 338                         if (hdmi->ops->disable)
 339                                 hdmi->ops->disable(hdmi);
 340                         if (hdmi->enable)
 341                                 hdmi_wq_remove(hdmi);
 342                         hdmi->sleep = 1;
 343                 }
 344                 break;
 345         case HDMI_HPD_CHANGE:
 346                 if (hdmi->ops->getstatus)
 347                         hpd = hdmi->ops->getstatus(hdmi);
 348                 DBG("hdmi_work_queue() - hpd is %d hotplug is %d\n",
 349                     hpd, hdmi->hotplug);
 350                 if (hpd != hdmi->hotplug) {
 351                         if (hpd == HDMI_HPD_ACTIVED) {
 352                                 hdmi->hotplug = hpd;
 353                                 hdmi_wq_insert(hdmi);
 354                         } else if (hdmi->hotplug == HDMI_HPD_ACTIVED) {
 355                                 hdmi_wq_remove(hdmi);
 356                         }
 357                         hdmi->hotplug = hpd;
 358                 }
 359                 break;
 360         case HDMI_SET_VIDEO:
 361                 if (hdmi->enable && !hdmi->sleep) {
 362                         hdmi_wq_set_output(hdmi,
 363                                            HDMI_VIDEO_MUTE | HDMI_AUDIO_MUTE);
 364                         if (rk_fb_get_display_policy() == DISPLAY_POLICY_BOX)
 365                                 msleep(2000);
 366                         else
 367                                 msleep(1000);
 368                         hdmi_wq_set_video(hdmi);
 369                         hdmi_send_uevent(hdmi, KOBJ_CHANGE);
 370                         hdmi_wq_set_audio(hdmi);
 371                         hdmi_wq_set_output(hdmi, hdmi->mute);
 372                         if (hdmi->ops->hdcp_cb)
 373                                 hdmi->ops->hdcp_cb(hdmi);
 374                 }
 375                 break;
 376         case HDMI_SET_AUDIO:
 377                 if ((hdmi->mute & HDMI_AUDIO_MUTE) == 0 &&
 378                     hdmi->enable && !hdmi->sleep) {
 379                         hdmi_wq_set_output(hdmi, HDMI_AUDIO_MUTE);
 380                         hdmi_wq_set_audio(hdmi);
 381                         hdmi_wq_set_output(hdmi, hdmi->mute);
 382                 }
 383                 break;
 384         case HDMI_MUTE_AUDIO:
 385         case HDMI_UNMUTE_AUDIO:
 386                 if (hdmi->mute & HDMI_AUDIO_MUTE ||
 387                     !hdmi->enable || hdmi->sleep ||
 388                     hdmi->hotplug != HDMI_HPD_ACTIVED)
 389                         break;
 390                 if (event == HDMI_MUTE_AUDIO)
 391                         hdmi_wq_set_output(hdmi, hdmi->mute |
 392                                            HDMI_AUDIO_MUTE);
 393                 else
 394                         hdmi_wq_set_output(hdmi,
 395                                            hdmi->mute & (~HDMI_AUDIO_MUTE));
 396                 break;
 397         case HDMI_SET_3D:
 398                 if (hdmi->ops->setvsi) {
 399                         if (hdmi->mode_3d != HDMI_3D_NONE)
 400                                 hdmi->ops->setvsi(hdmi, hdmi->mode_3d,
 401                                                   HDMI_VIDEO_FORMAT_3D);
 402                         else if ((hdmi->vic & HDMI_TYPE_MASK) == 0)
 403                                 hdmi->ops->setvsi(hdmi, hdmi->vic,
 404                                                   HDMI_VIDEO_FORMAT_NORMAL);
 405                 }
 406                 break;
 407         case HDMI_SET_COLOR:
 408                 hdmi_wq_set_output(hdmi,
 409                                    HDMI_VIDEO_MUTE | HDMI_AUDIO_MUTE);
 410                 msleep(100);
 411                 hdmi_wq_set_video(hdmi);
 412                 hdmi_wq_set_output(hdmi, hdmi->mute);
 413                 break;
 414         case HDMI_ENABLE_HDCP:
 415                 if (hdmi->hotplug == HDMI_HPD_ACTIVED && hdmi->ops->hdcp_cb)
 416                         hdmi->ops->hdcp_cb(hdmi);
 417                 break;
 418         case HDMI_HDCP_AUTH_2ND:
 419                 if (hdmi->hotplug == HDMI_HPD_ACTIVED &&
 420                     hdmi->ops->hdcp_auth2nd)
 421                         hdmi->ops->hdcp_auth2nd(hdmi);
 422                 break;
 423         default:
 424                 pr_err("HDMI: hdmi_work_queue() unkown event\n");
 425                 break;
 426         }
 427
 428         kfree(hdmi_w->data);
 429         kfree(hdmi_w);
 430
 431         DBG("\nhdmi_work_queue() - exit evt= %x %d\n",
 432             (event & 0xFF00) >> 8,
 433             event & 0xFF);
 434         mutex_unlock(&hdmi->lock);
 435 }
 436
 437 struct hdmi *rockchip_hdmi_register(struct hdmi_property *property,
 438                                     struct hdmi_ops *ops)
 439 {
 440         struct hdmi *hdmi;
 441         char name[32];
 442         int i;
 443
 444         if (property == NULL || ops == NULL) {
 445                 pr_err("HDMI: %s invalid parameter\n", __func__);
 446                 return NULL;
 447         }
 448
 449         for (i = 0; i < HDMI_MAX_ID; i++) {
 450                 if (ref_info[i].ref == 0)
 451                         break;
 452         }
 453         if (i == HDMI_MAX_ID)
 454                 return NULL;
 455
 456         DBG("hdmi_register() - video source %d display %d\n",
 457             property->videosrc,  property->display);
 458
 459         hdmi = kmalloc(sizeof(*hdmi), GFP_KERNEL);
 460         if (!hdmi) {
 461                 pr_err("HDMI: no memory to allocate hdmi device.\n");
 462                 return NULL;
 463         }
 464         memset(hdmi, 0, sizeof(struct hdmi));
 465         mutex_init(&hdmi->lock);
 466
 467         hdmi->property = property;
 468         hdmi->ops = ops;
 469         hdmi->enable = false;
 470         hdmi->mute = HDMI_AV_UNMUTE;
 471         hdmi->hotplug = HDMI_HPD_REMOVED;
 472         hdmi->autoset = HDMI_AUTO_CONFIG;
 473         if (uboot_vic > 0) {
 474                 hdmi->vic = uboot_vic;
 475                 hdmi->uboot = 1;
 476                 hdmi->autoset = 0;
 477         } else if (hdmi->autoset) {
 478                 hdmi->vic = 0;
 479         } else {
 480                 hdmi->vic = hdmi->property->defaultmode;
 481         }
 482         hdmi->colormode = HDMI_VIDEO_DEFAULT_COLORMODE;
 483         hdmi->colordepth = HDMI_DEPP_COLOR_AUTO;
 484         hdmi->colorimetry = HDMI_COLORIMETRY_NO_DATA;
 485         hdmi->mode_3d = HDMI_3D_NONE;
 486         hdmi->audio.type = HDMI_AUDIO_DEFAULT_TYPE;
 487         hdmi->audio.channel = HDMI_AUDIO_DEFAULT_CHANNEL;
 488         hdmi->audio.rate = HDMI_AUDIO_DEFAULT_RATE;
 489         hdmi->audio.word_length = HDMI_AUDIO_DEFAULT_WORDLENGTH;
 490         hdmi->xscale = 100;
 491         hdmi->yscale = 100;
 492         hdmi_init_modelist(hdmi);
 493
 494         if (hdmi->property->videosrc == DISPLAY_SOURCE_LCDC0)
 495                 hdmi->lcdc = rk_get_lcdc_drv("lcdc0");
 496         else
 497                 hdmi->lcdc = rk_get_lcdc_drv("lcdc1");
 498
 499         if (hdmi->lcdc->prop == EXTEND)
 500                 hdmi->property->display = DISPLAY_AUX;
 501         else
 502                 hdmi->property->display = DISPLAY_MAIN;
 503         memset(name, 0, 32);
 504         sprintf(name, "hdmi-%s", hdmi->property->name);
 505         hdmi->workqueue = create_singlethread_workqueue(name);
 506         if (hdmi->workqueue == NULL) {
 507                 pr_err("HDMI,: create workqueue failed.\n");
 508                 goto err_create_wq;
 509         }
 510         hdmi->ddev = hdmi_register_display_sysfs(hdmi, NULL);
 511         if (hdmi->ddev == NULL) {
 512                 pr_err("HDMI : register display sysfs failed.\n");
 513                 goto err_register_display;
 514         }
 515         hdmi->id = i;
 516         #ifdef CONFIG_SWITCH
 517         if (hdmi->id == 0) {
 518                 hdmi->switchdev.name = "hdmi";
 519         } else {
 520                 hdmi->switchdev.name = kzalloc(32, GFP_KERNEL);
 521                 memset((char *)hdmi->switchdev.name, 0, 32);
 522                 sprintf((char *)hdmi->switchdev.name, "hdmi%d", hdmi->id);
 523         }
 524         switch_dev_register(&(hdmi->switchdev));
 525         #endif
 526
 527         ref_info[i].hdmi = hdmi;
 528         ref_info[i].ref = 1;
 529         return hdmi;
 530
 531 err_register_display:
 532         destroy_workqueue(hdmi->workqueue);
 533 err_create_wq:
 534         kfree(hdmi);
 535         return NULL;
 536 }
 537
 538 void rockchip_hdmi_unregister(struct hdmi *hdmi)
 539 {
 540         if (hdmi) {
 541                 flush_workqueue(hdmi->workqueue);
 542                 destroy_workqueue(hdmi->workqueue);
 543                 #ifdef CONFIG_SWITCH
 544                 switch_dev_unregister(&(hdmi->switchdev));
 545                 #endif
 546                 hdmi_unregister_display_sysfs(hdmi);
 547                 fb_destroy_modelist(&hdmi->edid.modelist);
 548                 kfree(hdmi->edid.audio);
 549                 if (hdmi->edid.specs) {
 550                         kfree(hdmi->edid.specs->modedb);
 551                         kfree(hdmi->edid.specs);
 552                 }
 553                 kfree(hdmi);
 554
 555                 ref_info[hdmi->id].ref = 0;
 556                 ref_info[hdmi->id].hdmi = NULL;
 557
 558                 hdmi = NULL;
 559         }
 560 }
 561
 562 int hdmi_get_hotplug(void)
 563 {
 564         if (ref_info[0].hdmi)
 565                 return ref_info[0].hdmi->hotplug;
 566         else
 567                 return HDMI_HPD_REMOVED;
 568 }
 569
 570 int hdmi_config_audio(struct hdmi_audio *audio)
 571 {
 572         int i;
 573         struct hdmi *hdmi;
 574
 575         if (audio == NULL)
 576                 return HDMI_ERROR_FALSE;
 577
 578         for (i = 0; i < HDMI_MAX_ID; i++) {
 579                 if (ref_info[i].ref == 0)
 580                         continue;
 581                 hdmi = ref_info[i].hdmi;
 582
 583                 /*
 584                 if (memcmp(audio, &hdmi->audio, sizeof(struct hdmi_audio)) == 0)
 585                         continue;
 586                 */
 587                 /*for (j = 0; j < hdmi->edid.audio_num; j++) {
 588                         if (audio->type == hdmi->edid.audio_num)
 589                                 break;
 590                 }*/
 591
 592                 /*if ( (j == hdmi->edid.audio_num) ||
 593                         (audio->channel > hdmi->edid.audio[j].channel) ||
 594                         ((audio->rate & hdmi->edid.audio[j].rate) == 0)||
 595                         ((audio->type == HDMI_AUDIO_LPCM) &&
 596                         ((audio->word_length &
 597                           hdmi->edid.audio[j].word_length) == 0)) ) {
 598                         pr_warn("[%s] warning : input audio type
 599                                 not supported in hdmi sink\n", __func__);
 600                         continue;
 601                 }*/
 602                 memcpy(&hdmi->audio, audio, sizeof(struct hdmi_audio));
 603                 if (hdmi->hotplug == HDMI_HPD_ACTIVED)
 604                         hdmi_submit_work(hdmi, HDMI_SET_AUDIO, 0, NULL);
 605         }
 606         return 0;
 607 }
 608
 609 int snd_config_hdmi_audio(struct snd_pcm_hw_params *params)
 610 {
 611         struct hdmi_audio audio_cfg;
 612         u32     rate;
 613
 614         switch (params_rate(params)) {
 615         case 32000:
 616                 rate = HDMI_AUDIO_FS_32000;
 617                 break;
 618         case 44100:
 619                 rate = HDMI_AUDIO_FS_44100;
 620                 break;
 621         case 48000:
 622                 rate = HDMI_AUDIO_FS_48000;
 623                 break;
 624         case 88200:
 625                 rate = HDMI_AUDIO_FS_88200;
 626                 break;
 627         case 96000:
 628                 rate = HDMI_AUDIO_FS_96000;
 629                 break;
 630         case 176400:
 631                 rate = HDMI_AUDIO_FS_176400;
 632                 break;
 633         case 192000:
 634                 rate = HDMI_AUDIO_FS_192000;
 635                 break;
 636         default:
 637                 pr_err("rate %d unsupport.\n", params_rate(params));
 638                 rate = HDMI_AUDIO_FS_44100;
 639         }
 640
 641         audio_cfg.rate = rate;
 642
 643         if (HW_PARAMS_FLAG_NLPCM == params->flags)
 644                 audio_cfg.type = HDMI_AUDIO_NLPCM;
 645         else
 646                 audio_cfg.type = HDMI_AUDIO_LPCM;
 647
 648         audio_cfg.channel = params_channels(params);
 649         audio_cfg.word_length = HDMI_AUDIO_WORD_LENGTH_16bit;
 650
 651         return hdmi_config_audio(&audio_cfg);
 652 }
 653 EXPORT_SYMBOL(snd_config_hdmi_audio);
 654
 655 void hdmi_audio_mute(int mute)
 656 {
 657         int i;
 658         struct hdmi *hdmi;
 659
 660         for (i = 0; i < HDMI_MAX_ID; i++) {
 661                 if (ref_info[i].ref == 0)
 662                         continue;
 663                 hdmi = ref_info[i].hdmi;
 664
 665                 if (mute)
 666                         hdmi_submit_work(hdmi, HDMI_MUTE_AUDIO, 0, NULL);
 667                 else
 668                         hdmi_submit_work(hdmi, HDMI_UNMUTE_AUDIO, 0, NULL);
 669         }
 670 }
 671
 672 static int __init bootloader_setup(char *str)
 673 {
 674         if (str) {
 675                 pr_info("hdmi init vic is %s\n", str);
 676                 if (kstrtoint(str, 0, &uboot_vic) < 0)
 677                         uboot_vic = 0;
 678         }
 679         return 0;
 680 }
 681
 682 early_param("hdmi.vic", bootloader_setup);
 683
 684 static int __init hdmi_class_init(void)
 685 {
 686         int i;
 687
 688         for (i = 0; i < HDMI_MAX_ID; i++) {
 689                 ref_info[i].id = i;
 690                 ref_info[i].ref = 0;
 691                 ref_info[i].hdmi = NULL;
 692         }
 693         pr_info("Rockchip hdmi driver version 2.0\n.");
 694         return 0;
 695 }
 696
 697 subsys_initcall(hdmi_class_init);