drivers/gpu/drm/radeon/evergreen

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
dce4_audio_enable
evergreen_hdmi_update_acr
dce4_afmt_write_latency_fields
dce4_afmt_hdmi_write_speaker_allocation
dce4_afmt_dp_write_speaker_allocation
evergreen_hdmi_write_sad_regs
evergreen_set_avi_packet
dce4_hdmi_audio_set_dto
dce4_dp_audio_set_dto
dce4_set_vbi_packet
dce4_hdmi_set_color_depth
dce4_set_audio_packet
dce4_set_mute
evergreen_hdmi_enable
evergreen_dp_enable
   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Christian König.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Christian König
  25  *          Rafał Miłecki
  26  */
  27 #include <linux/hdmi.h>
  28 
  29 #include <drm/radeon_drm.h>
  30 #include "radeon.h"
  31 #include "radeon_asic.h"
  32 #include "radeon_audio.h"
  33 #include "evergreend.h"
  34 #include "atom.h"
  35 
  36 /* enable the audio stream */
  37 void dce4_audio_enable(struct radeon_device *rdev,
  38                               struct r600_audio_pin *pin,
  39                               u8 enable_mask)
  40 {
  41         u32 tmp = RREG32(AZ_HOT_PLUG_CONTROL);
  42 
  43         if (!pin)
  44                 return;
  45 
  46         if (enable_mask) {
  47                 tmp |= AUDIO_ENABLED;
  48                 if (enable_mask & 1)
  49                         tmp |= PIN0_AUDIO_ENABLED;
  50                 if (enable_mask & 2)
  51                         tmp |= PIN1_AUDIO_ENABLED;
  52                 if (enable_mask & 4)
  53                         tmp |= PIN2_AUDIO_ENABLED;
  54                 if (enable_mask & 8)
  55                         tmp |= PIN3_AUDIO_ENABLED;
  56         } else {
  57                 tmp &= ~(AUDIO_ENABLED |
  58                          PIN0_AUDIO_ENABLED |
  59                          PIN1_AUDIO_ENABLED |
  60                          PIN2_AUDIO_ENABLED |
  61                          PIN3_AUDIO_ENABLED);
  62         }
  63 
  64         WREG32(AZ_HOT_PLUG_CONTROL, tmp);
  65 }
  66 
  67 void evergreen_hdmi_update_acr(struct drm_encoder *encoder, long offset,
  68         const struct radeon_hdmi_acr *acr)
  69 {
  70         struct drm_device *dev = encoder->dev;
  71         struct radeon_device *rdev = dev->dev_private;
  72         int bpc = 8;
  73 
  74         if (encoder->crtc) {
  75                 struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
  76                 bpc = radeon_crtc->bpc;
  77         }
  78 
  79         if (bpc > 8)
  80                 WREG32(HDMI_ACR_PACKET_CONTROL + offset,
  81                         HDMI_ACR_AUTO_SEND);    /* allow hw to sent ACR packets when required */
  82         else
  83                 WREG32(HDMI_ACR_PACKET_CONTROL + offset,
  84                         HDMI_ACR_SOURCE |               /* select SW CTS value */
  85                         HDMI_ACR_AUTO_SEND);    /* allow hw to sent ACR packets when required */
  86 
  87         WREG32(HDMI_ACR_32_0 + offset, HDMI_ACR_CTS_32(acr->cts_32khz));
  88         WREG32(HDMI_ACR_32_1 + offset, acr->n_32khz);
  89 
  90         WREG32(HDMI_ACR_44_0 + offset, HDMI_ACR_CTS_44(acr->cts_44_1khz));
  91         WREG32(HDMI_ACR_44_1 + offset, acr->n_44_1khz);
  92 
  93         WREG32(HDMI_ACR_48_0 + offset, HDMI_ACR_CTS_48(acr->cts_48khz));
  94         WREG32(HDMI_ACR_48_1 + offset, acr->n_48khz);
  95 }
  96 
  97 void dce4_afmt_write_latency_fields(struct drm_encoder *encoder,
  98                 struct drm_connector *connector, struct drm_display_mode *mode)
  99 {
 100         struct radeon_device *rdev = encoder->dev->dev_private;
 101         u32 tmp = 0;
 102 
 103         if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
 104                 if (connector->latency_present[1])
 105                         tmp = VIDEO_LIPSYNC(connector->video_latency[1]) |
 106                                 AUDIO_LIPSYNC(connector->audio_latency[1]);
 107                 else
 108                         tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
 109         } else {
 110                 if (connector->latency_present[0])
 111                         tmp = VIDEO_LIPSYNC(connector->video_latency[0]) |
 112                                 AUDIO_LIPSYNC(connector->audio_latency[0]);
 113                 else
 114                         tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
 115         }
 116         WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_RESPONSE_LIPSYNC, tmp);
 117 }
 118 
 119 void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
 120         u8 *sadb, int sad_count)
 121 {
 122         struct radeon_device *rdev = encoder->dev->dev_private;
 123         u32 tmp;
 124 
 125         /* program the speaker allocation */
 126         tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
 127         tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
 128         /* set HDMI mode */
 129         tmp |= HDMI_CONNECTION;
 130         if (sad_count)
 131                 tmp |= SPEAKER_ALLOCATION(sadb[0]);
 132         else
 133                 tmp |= SPEAKER_ALLOCATION(5); /* stereo */
 134         WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
 135 }
 136 
 137 void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
 138         u8 *sadb, int sad_count)
 139 {
 140         struct radeon_device *rdev = encoder->dev->dev_private;
 141         u32 tmp;
 142 
 143         /* program the speaker allocation */
 144         tmp = RREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER);
 145         tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
 146         /* set DP mode */
 147         tmp |= DP_CONNECTION;
 148         if (sad_count)
 149                 tmp |= SPEAKER_ALLOCATION(sadb[0]);
 150         else
 151                 tmp |= SPEAKER_ALLOCATION(5); /* stereo */
 152         WREG32_ENDPOINT(0, AZ_F0_CODEC_PIN0_CONTROL_CHANNEL_SPEAKER, tmp);
 153 }
 154 
 155 void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder,
 156         struct cea_sad *sads, int sad_count)
 157 {
 158         int i;
 159         struct radeon_device *rdev = encoder->dev->dev_private;
 160         static const u16 eld_reg_to_type[][2] = {
 161                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
 162                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
 163                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
 164                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
 165                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
 166                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
 167                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
 168                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
 169                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
 170                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
 171                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
 172                 { AZ_F0_CODEC_PIN0_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
 173         };
 174 
 175         for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
 176                 u32 value = 0;
 177                 u8 stereo_freqs = 0;
 178                 int max_channels = -1;
 179                 int j;
 180 
 181                 for (j = 0; j < sad_count; j++) {
 182                         struct cea_sad *sad = &sads[j];
 183 
 184                         if (sad->format == eld_reg_to_type[i][1]) {
 185                                 if (sad->channels > max_channels) {
 186                                         value = MAX_CHANNELS(sad->channels) |
 187                                                 DESCRIPTOR_BYTE_2(sad->byte2) |
 188                                                 SUPPORTED_FREQUENCIES(sad->freq);
 189                                         max_channels = sad->channels;
 190                                 }
 191 
 192                                 if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
 193                                         stereo_freqs |= sad->freq;
 194                                 else
 195                                         break;
 196                         }
 197                 }
 198 
 199                 value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs);
 200 
 201                 WREG32_ENDPOINT(0, eld_reg_to_type[i][0], value);
 202         }
 203 }
 204 
 205 /*
 206  * build a AVI Info Frame
 207  */
 208 void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset,
 209                               unsigned char *buffer, size_t size)
 210 {
 211         uint8_t *frame = buffer + 3;
 212 
 213         WREG32(AFMT_AVI_INFO0 + offset,
 214                 frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
 215         WREG32(AFMT_AVI_INFO1 + offset,
 216                 frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24));
 217         WREG32(AFMT_AVI_INFO2 + offset,
 218                 frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24));
 219         WREG32(AFMT_AVI_INFO3 + offset,
 220                 frame[0xC] | (frame[0xD] << 8) | (buffer[1] << 24));
 221 
 222         WREG32_P(HDMI_INFOFRAME_CONTROL1 + offset,
 223                  HDMI_AVI_INFO_LINE(2), /* anything other than 0 */
 224                  ~HDMI_AVI_INFO_LINE_MASK);
 225 }
 226 
 227 void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
 228         struct radeon_crtc *crtc, unsigned int clock)
 229 {
 230         unsigned int max_ratio = clock / 24000;
 231         u32 dto_phase;
 232         u32 wallclock_ratio;
 233         u32 value;
 234 
 235         if (max_ratio >= 8) {
 236                 dto_phase = 192 * 1000;
 237                 wallclock_ratio = 3;
 238         } else if (max_ratio >= 4) {
 239                 dto_phase = 96 * 1000;
 240                 wallclock_ratio = 2;
 241         } else if (max_ratio >= 2) {
 242                 dto_phase = 48 * 1000;
 243                 wallclock_ratio = 1;
 244         } else {
 245                 dto_phase = 24 * 1000;
 246                 wallclock_ratio = 0;
 247         }
 248 
 249         value = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
 250         value |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
 251         value &= ~DCCG_AUDIO_DTO1_USE_512FBR_DTO;
 252         WREG32(DCCG_AUDIO_DTO0_CNTL, value);
 253 
 254         /* Two dtos; generally use dto0 for HDMI */
 255         value = 0;
 256 
 257         if (crtc)
 258                 value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
 259 
 260         WREG32(DCCG_AUDIO_DTO_SOURCE, value);
 261 
 262         /* Express [24MHz / target pixel clock] as an exact rational
 263          * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
 264          * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 265          */
 266         WREG32(DCCG_AUDIO_DTO0_PHASE, dto_phase);
 267         WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
 268 }
 269 
 270 void dce4_dp_audio_set_dto(struct radeon_device *rdev,
 271                            struct radeon_crtc *crtc, unsigned int clock)
 272 {
 273         u32 value;
 274 
 275         value = RREG32(DCCG_AUDIO_DTO1_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
 276         value |= DCCG_AUDIO_DTO1_USE_512FBR_DTO;
 277         WREG32(DCCG_AUDIO_DTO1_CNTL, value);
 278 
 279         /* Two dtos; generally use dto1 for DP */
 280         value = 0;
 281         value |= DCCG_AUDIO_DTO_SEL;
 282 
 283         if (crtc)
 284                 value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
 285 
 286         WREG32(DCCG_AUDIO_DTO_SOURCE, value);
 287 
 288         /* Express [24MHz / target pixel clock] as an exact rational
 289          * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
 290          * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 291          */
 292         if (ASIC_IS_DCE41(rdev)) {
 293                 unsigned int div = (RREG32(DCE41_DENTIST_DISPCLK_CNTL) &
 294                         DENTIST_DPREFCLK_WDIVIDER_MASK) >>
 295                         DENTIST_DPREFCLK_WDIVIDER_SHIFT;
 296                 div = radeon_audio_decode_dfs_div(div);
 297 
 298                 if (div)
 299                         clock = 100 * clock / div;
 300         }
 301 
 302         WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
 303         WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
 304 }
 305 
 306 void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset)
 307 {
 308         struct drm_device *dev = encoder->dev;
 309         struct radeon_device *rdev = dev->dev_private;
 310 
 311         WREG32(HDMI_VBI_PACKET_CONTROL + offset,
 312                 HDMI_NULL_SEND |        /* send null packets when required */
 313                 HDMI_GC_SEND |          /* send general control packets */
 314                 HDMI_GC_CONT);          /* send general control packets every frame */
 315 }
 316 
 317 void dce4_hdmi_set_color_depth(struct drm_encoder *encoder, u32 offset, int bpc)
 318 {
 319         struct drm_device *dev = encoder->dev;
 320         struct radeon_device *rdev = dev->dev_private;
 321         struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 322         uint32_t val;
 323 
 324         val = RREG32(HDMI_CONTROL + offset);
 325         val &= ~HDMI_DEEP_COLOR_ENABLE;
 326         val &= ~HDMI_DEEP_COLOR_DEPTH_MASK;
 327 
 328         switch (bpc) {
 329                 case 0:
 330                 case 6:
 331                 case 8:
 332                 case 16:
 333                 default:
 334                         DRM_DEBUG("%s: Disabling hdmi deep color for %d bpc.\n",
 335                                          connector->name, bpc);
 336                         break;
 337                 case 10:
 338                         val |= HDMI_DEEP_COLOR_ENABLE;
 339                         val |= HDMI_DEEP_COLOR_DEPTH(HDMI_30BIT_DEEP_COLOR);
 340                         DRM_DEBUG("%s: Enabling hdmi deep color 30 for 10 bpc.\n",
 341                                          connector->name);
 342                         break;
 343                 case 12:
 344                         val |= HDMI_DEEP_COLOR_ENABLE;
 345                         val |= HDMI_DEEP_COLOR_DEPTH(HDMI_36BIT_DEEP_COLOR);
 346                         DRM_DEBUG("%s: Enabling hdmi deep color 36 for 12 bpc.\n",
 347                                          connector->name);
 348                         break;
 349         }
 350 
 351         WREG32(HDMI_CONTROL + offset, val);
 352 }
 353 
 354 void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset)
 355 {
 356         struct drm_device *dev = encoder->dev;
 357         struct radeon_device *rdev = dev->dev_private;
 358 
 359         WREG32(AFMT_INFOFRAME_CONTROL0 + offset,
 360                 AFMT_AUDIO_INFO_UPDATE); /* required for audio info values to be updated */
 361 
 362         WREG32(AFMT_60958_0 + offset,
 363                 AFMT_60958_CS_CHANNEL_NUMBER_L(1));
 364 
 365         WREG32(AFMT_60958_1 + offset,
 366                 AFMT_60958_CS_CHANNEL_NUMBER_R(2));
 367 
 368         WREG32(AFMT_60958_2 + offset,
 369                 AFMT_60958_CS_CHANNEL_NUMBER_2(3) |
 370                 AFMT_60958_CS_CHANNEL_NUMBER_3(4) |
 371                 AFMT_60958_CS_CHANNEL_NUMBER_4(5) |
 372                 AFMT_60958_CS_CHANNEL_NUMBER_5(6) |
 373                 AFMT_60958_CS_CHANNEL_NUMBER_6(7) |
 374                 AFMT_60958_CS_CHANNEL_NUMBER_7(8));
 375 
 376         WREG32(AFMT_AUDIO_PACKET_CONTROL2 + offset,
 377                 AFMT_AUDIO_CHANNEL_ENABLE(0xff));
 378 
 379         WREG32(HDMI_AUDIO_PACKET_CONTROL + offset,
 380                HDMI_AUDIO_DELAY_EN(1) | /* set the default audio delay */
 381                HDMI_AUDIO_PACKETS_PER_LINE(3)); /* should be suffient for all audio modes and small enough for all hblanks */
 382 
 383         /* allow 60958 channel status and send audio packets fields to be updated */
 384         WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + offset,
 385                   AFMT_RESET_FIFO_WHEN_AUDIO_DIS | AFMT_60958_CS_UPDATE);
 386 }
 387 
 388 
 389 void dce4_set_mute(struct drm_encoder *encoder, u32 offset, bool mute)
 390 {
 391         struct drm_device *dev = encoder->dev;
 392         struct radeon_device *rdev = dev->dev_private;
 393 
 394         if (mute)
 395                 WREG32_OR(HDMI_GC + offset, HDMI_GC_AVMUTE);
 396         else
 397                 WREG32_AND(HDMI_GC + offset, ~HDMI_GC_AVMUTE);
 398 }
 399 
 400 void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable)
 401 {
 402         struct drm_device *dev = encoder->dev;
 403         struct radeon_device *rdev = dev->dev_private;
 404         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 405         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 406 
 407         if (!dig || !dig->afmt)
 408                 return;
 409 
 410         if (enable) {
 411                 struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 412 
 413                 if (connector && drm_detect_monitor_audio(radeon_connector_edid(connector))) {
 414                         WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
 415                                HDMI_AVI_INFO_SEND | /* enable AVI info frames */
 416                                HDMI_AVI_INFO_CONT | /* required for audio info values to be updated */
 417                                HDMI_AUDIO_INFO_SEND | /* enable audio info frames (frames won't be set until audio is enabled) */
 418                                HDMI_AUDIO_INFO_CONT); /* required for audio info values to be updated */
 419                         WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
 420                                   AFMT_AUDIO_SAMPLE_SEND);
 421                 } else {
 422                         WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
 423                                HDMI_AVI_INFO_SEND | /* enable AVI info frames */
 424                                HDMI_AVI_INFO_CONT); /* required for audio info values to be updated */
 425                         WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
 426                                    ~AFMT_AUDIO_SAMPLE_SEND);
 427                 }
 428         } else {
 429                 WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
 430                            ~AFMT_AUDIO_SAMPLE_SEND);
 431                 WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset, 0);
 432         }
 433 
 434         dig->afmt->enabled = enable;
 435 
 436         DRM_DEBUG("%sabling HDMI interface @ 0x%04X for encoder 0x%x\n",
 437                   enable ? "En" : "Dis", dig->afmt->offset, radeon_encoder->encoder_id);
 438 }
 439 
 440 void evergreen_dp_enable(struct drm_encoder *encoder, bool enable)
 441 {
 442         struct drm_device *dev = encoder->dev;
 443         struct radeon_device *rdev = dev->dev_private;
 444         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 445         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 446         struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 447 
 448         if (!dig || !dig->afmt)
 449                 return;
 450 
 451         if (enable && connector &&
 452             drm_detect_monitor_audio(radeon_connector_edid(connector))) {
 453                 struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 454                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 455                 struct radeon_connector_atom_dig *dig_connector;
 456                 uint32_t val;
 457 
 458                 WREG32_OR(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
 459                           AFMT_AUDIO_SAMPLE_SEND);
 460 
 461                 WREG32(EVERGREEN_DP_SEC_TIMESTAMP + dig->afmt->offset,
 462                        EVERGREEN_DP_SEC_TIMESTAMP_MODE(1));
 463 
 464                 if (!ASIC_IS_DCE6(rdev) && radeon_connector->con_priv) {
 465                         dig_connector = radeon_connector->con_priv;
 466                         val = RREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset);
 467                         val &= ~EVERGREEN_DP_SEC_N_BASE_MULTIPLE(0xf);
 468 
 469                         if (dig_connector->dp_clock == 162000)
 470                                 val |= EVERGREEN_DP_SEC_N_BASE_MULTIPLE(3);
 471                         else
 472                                 val |= EVERGREEN_DP_SEC_N_BASE_MULTIPLE(5);
 473 
 474                         WREG32(EVERGREEN_DP_SEC_AUD_N + dig->afmt->offset, val);
 475                 }
 476 
 477                 WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset,
 478                         EVERGREEN_DP_SEC_ASP_ENABLE |           /* Audio packet transmission */
 479                         EVERGREEN_DP_SEC_ATP_ENABLE |           /* Audio timestamp packet transmission */
 480                         EVERGREEN_DP_SEC_AIP_ENABLE |           /* Audio infoframe packet transmission */
 481                         EVERGREEN_DP_SEC_STREAM_ENABLE);        /* Master enable for secondary stream engine */
 482         } else {
 483                 WREG32(EVERGREEN_DP_SEC_CNTL + dig->afmt->offset, 0);
 484                 WREG32_AND(AFMT_AUDIO_PACKET_CONTROL + dig->afmt->offset,
 485                            ~AFMT_AUDIO_SAMPLE_SEND);
 486         }
 487 
 488         dig->afmt->enabled = enable;
 489 }
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/gpu/drm/radeon/evergreen_hdmi.c

DEFINITIONS
