drivers/gpu/drm/radeon/dce6_afmt.c

   1 /*
   2  * Copyright 2013 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23 #include <linux/hdmi.h>
  24 #include <drm/drmP.h>
  25 #include "radeon.h"
  26 #include "radeon_audio.h"
  27 #include "sid.h"
  28
  29 #define DCE8_DCCG_AUDIO_DTO1_PHASE      0x05b8
  30 #define DCE8_DCCG_AUDIO_DTO1_MODULE     0x05bc
  31
  32 u32 dce6_endpoint_rreg(struct radeon_device *rdev,
  33                               u32 block_offset, u32 reg)
  34 {
  35         unsigned long flags;
  36         u32 r;
  37
  38         spin_lock_irqsave(&rdev->end_idx_lock, flags);
  39         WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
  40         r = RREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset);
  41         spin_unlock_irqrestore(&rdev->end_idx_lock, flags);
  42
  43         return r;
  44 }
  45
  46 void dce6_endpoint_wreg(struct radeon_device *rdev,
  47                                u32 block_offset, u32 reg, u32 v)
  48 {
  49         unsigned long flags;
  50
  51         spin_lock_irqsave(&rdev->end_idx_lock, flags);
  52         if (ASIC_IS_DCE8(rdev))
  53                 WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg);
  54         else
  55                 WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset,
  56                        AZ_ENDPOINT_REG_WRITE_EN | AZ_ENDPOINT_REG_INDEX(reg));
  57         WREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset, v);
  58         spin_unlock_irqrestore(&rdev->end_idx_lock, flags);
  59 }
  60
  61 static void dce6_afmt_get_connected_pins(struct radeon_device *rdev)
  62 {
  63         int i;
  64         u32 offset, tmp;
  65
  66         for (i = 0; i < rdev->audio.num_pins; i++) {
  67                 offset = rdev->audio.pin[i].offset;
  68                 tmp = RREG32_ENDPOINT(offset,
  69                                       AZ_F0_CODEC_PIN_CONTROL_RESPONSE_CONFIGURATION_DEFAULT);
  70                 if (((tmp & PORT_CONNECTIVITY_MASK) >> PORT_CONNECTIVITY_SHIFT) == 1)
  71                         rdev->audio.pin[i].connected = false;
  72                 else
  73                         rdev->audio.pin[i].connected = true;
  74         }
  75 }
  76
  77 struct r600_audio_pin *dce6_audio_get_pin(struct radeon_device *rdev)
  78 {
  79         struct drm_encoder *encoder;
  80         struct radeon_encoder *radeon_encoder;
  81         struct radeon_encoder_atom_dig *dig;
  82         struct r600_audio_pin *pin = NULL;
  83         int i, pin_count;
  84
  85         dce6_afmt_get_connected_pins(rdev);
  86
  87         for (i = 0; i < rdev->audio.num_pins; i++) {
  88                 if (rdev->audio.pin[i].connected) {
  89                         pin = &rdev->audio.pin[i];
  90                         pin_count = 0;
  91
  92                         list_for_each_entry(encoder, &rdev->ddev->mode_config.encoder_list, head) {
  93                                 if (radeon_encoder_is_digital(encoder)) {
  94                                         radeon_encoder = to_radeon_encoder(encoder);
  95                                         dig = radeon_encoder->enc_priv;
  96                                         if (dig->pin == pin)
  97                                                 pin_count++;
  98                                 }
  99                         }
 100
 101                         if (pin_count == 0)
 102                                 return pin;
 103                 }
 104         }
 105         if (!pin)
 106                 DRM_ERROR("No connected audio pins found!\n");
 107         return pin;
 108 }
 109
 110 void dce6_afmt_select_pin(struct drm_encoder *encoder)
 111 {
 112         struct radeon_device *rdev = encoder->dev->dev_private;
 113         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 114         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 115
 116         if (!dig || !dig->afmt || !dig->pin)
 117                 return;
 118
 119         WREG32(AFMT_AUDIO_SRC_CONTROL +  dig->afmt->offset,
 120                AFMT_AUDIO_SRC_SELECT(dig->pin->id));
 121 }
 122
 123 void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
 124                                     struct drm_connector *connector,
 125                                     struct drm_display_mode *mode)
 126 {
 127         struct radeon_device *rdev = encoder->dev->dev_private;
 128         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 129         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 130         u32 tmp = 0;
 131
 132         if (!dig || !dig->afmt || !dig->pin)
 133                 return;
 134
 135         if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
 136                 if (connector->latency_present[1])
 137                         tmp = VIDEO_LIPSYNC(connector->video_latency[1]) |
 138                                 AUDIO_LIPSYNC(connector->audio_latency[1]);
 139                 else
 140                         tmp = VIDEO_LIPSYNC(0) | AUDIO_LIPSYNC(0);
 141         } else {
 142                 if (connector->latency_present[0])
 143                         tmp = VIDEO_LIPSYNC(connector->video_latency[0]) |
 144                                 AUDIO_LIPSYNC(connector->audio_latency[0]);
 145                 else
 146                         tmp = VIDEO_LIPSYNC(0) | AUDIO_LIPSYNC(0);
 147         }
 148         WREG32_ENDPOINT(dig->pin->offset,
 149                         AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp);
 150 }
 151
 152 void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
 153                                              u8 *sadb, int sad_count)
 154 {
 155         struct radeon_device *rdev = encoder->dev->dev_private;
 156         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 157         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 158         u32 tmp;
 159
 160         if (!dig || !dig->afmt || !dig->pin)
 161                 return;
 162
 163         /* program the speaker allocation */
 164         tmp = RREG32_ENDPOINT(dig->pin->offset,
 165                               AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
 166         tmp &= ~(DP_CONNECTION | SPEAKER_ALLOCATION_MASK);
 167         /* set HDMI mode */
 168         tmp |= HDMI_CONNECTION;
 169         if (sad_count)
 170                 tmp |= SPEAKER_ALLOCATION(sadb[0]);
 171         else
 172                 tmp |= SPEAKER_ALLOCATION(5); /* stereo */
 173         WREG32_ENDPOINT(dig->pin->offset,
 174                         AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
 175 }
 176
 177 void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
 178                                            u8 *sadb, int sad_count)
 179 {
 180         struct radeon_device *rdev = encoder->dev->dev_private;
 181         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 182         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 183         u32 tmp;
 184
 185         if (!dig || !dig->afmt || !dig->pin)
 186                 return;
 187
 188         /* program the speaker allocation */
 189         tmp = RREG32_ENDPOINT(dig->pin->offset,
 190                               AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER);
 191         tmp &= ~(HDMI_CONNECTION | SPEAKER_ALLOCATION_MASK);
 192         /* set DP mode */
 193         tmp |= DP_CONNECTION;
 194         if (sad_count)
 195                 tmp |= SPEAKER_ALLOCATION(sadb[0]);
 196         else
 197                 tmp |= SPEAKER_ALLOCATION(5); /* stereo */
 198         WREG32_ENDPOINT(dig->pin->offset,
 199                         AZ_F0_CODEC_PIN_CONTROL_CHANNEL_SPEAKER, tmp);
 200 }
 201
 202 void dce6_afmt_write_sad_regs(struct drm_encoder *encoder,
 203                               struct cea_sad *sads, int sad_count)
 204 {
 205         int i;
 206         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 207         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 208         struct radeon_device *rdev = encoder->dev->dev_private;
 209         static const u16 eld_reg_to_type[][2] = {
 210                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, HDMI_AUDIO_CODING_TYPE_PCM },
 211                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR1, HDMI_AUDIO_CODING_TYPE_AC3 },
 212                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR2, HDMI_AUDIO_CODING_TYPE_MPEG1 },
 213                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR3, HDMI_AUDIO_CODING_TYPE_MP3 },
 214                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR4, HDMI_AUDIO_CODING_TYPE_MPEG2 },
 215                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR5, HDMI_AUDIO_CODING_TYPE_AAC_LC },
 216                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR6, HDMI_AUDIO_CODING_TYPE_DTS },
 217                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR7, HDMI_AUDIO_CODING_TYPE_ATRAC },
 218                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR9, HDMI_AUDIO_CODING_TYPE_EAC3 },
 219                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR10, HDMI_AUDIO_CODING_TYPE_DTS_HD },
 220                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR11, HDMI_AUDIO_CODING_TYPE_MLP },
 221                 { AZ_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR13, HDMI_AUDIO_CODING_TYPE_WMA_PRO },
 222         };
 223
 224         if (!dig || !dig->afmt || !dig->pin)
 225                 return;
 226
 227         for (i = 0; i < ARRAY_SIZE(eld_reg_to_type); i++) {
 228                 u32 value = 0;
 229                 u8 stereo_freqs = 0;
 230                 int max_channels = -1;
 231                 int j;
 232
 233                 for (j = 0; j < sad_count; j++) {
 234                         struct cea_sad *sad = &sads[j];
 235
 236                         if (sad->format == eld_reg_to_type[i][1]) {
 237                                 if (sad->channels > max_channels) {
 238                                         value = MAX_CHANNELS(sad->channels) |
 239                                                 DESCRIPTOR_BYTE_2(sad->byte2) |
 240                                                 SUPPORTED_FREQUENCIES(sad->freq);
 241                                         max_channels = sad->channels;
 242                                 }
 243
 244                                 if (sad->format == HDMI_AUDIO_CODING_TYPE_PCM)
 245                                         stereo_freqs |= sad->freq;
 246                                 else
 247                                         break;
 248                         }
 249                 }
 250
 251                 value |= SUPPORTED_FREQUENCIES_STEREO(stereo_freqs);
 252
 253                 WREG32_ENDPOINT(dig->pin->offset, eld_reg_to_type[i][0], value);
 254         }
 255 }
 256
 257 void dce6_audio_enable(struct radeon_device *rdev,
 258                        struct r600_audio_pin *pin,
 259                        u8 enable_mask)
 260 {
 261         if (!pin)
 262                 return;
 263
 264         WREG32_ENDPOINT(pin->offset, AZ_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,
 265                         enable_mask ? AUDIO_ENABLED : 0);
 266 }
 267
 268 void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
 269                              struct radeon_crtc *crtc, unsigned int clock)
 270 {
 271         /* Two dtos; generally use dto0 for HDMI */
 272         u32 value = 0;
 273
 274         if (crtc)
 275                 value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
 276
 277         WREG32(DCCG_AUDIO_DTO_SOURCE, value);
 278
 279         /* Express [24MHz / target pixel clock] as an exact rational
 280          * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
 281          * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 282          */
 283         WREG32(DCCG_AUDIO_DTO0_PHASE, 24000);
 284         WREG32(DCCG_AUDIO_DTO0_MODULE, clock);
 285 }
 286
 287 void dce6_dp_audio_set_dto(struct radeon_device *rdev,
 288                            struct radeon_crtc *crtc, unsigned int clock)
 289 {
 290         /* Two dtos; generally use dto1 for DP */
 291         u32 value = 0;
 292         value |= DCCG_AUDIO_DTO_SEL;
 293
 294         if (crtc)
 295                 value |= DCCG_AUDIO_DTO0_SOURCE_SEL(crtc->crtc_id);
 296
 297         WREG32(DCCG_AUDIO_DTO_SOURCE, value);
 298
 299         /* Express [24MHz / target pixel clock] as an exact rational
 300          * number (coefficient of two integer numbers.  DCCG_AUDIO_DTOx_PHASE
 301          * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
 302          */
 303         if (ASIC_IS_DCE8(rdev)) {
 304                 unsigned int div = (RREG32(DENTIST_DISPCLK_CNTL) &
 305                         DENTIST_DPREFCLK_WDIVIDER_MASK) >>
 306                         DENTIST_DPREFCLK_WDIVIDER_SHIFT;
 307                 div = radeon_audio_decode_dfs_div(div);
 308
 309                 if (div)
 310                         clock = clock * 100 / div;
 311
 312                 WREG32(DCE8_DCCG_AUDIO_DTO1_PHASE, 24000);
 313                 WREG32(DCE8_DCCG_AUDIO_DTO1_MODULE, clock);
 314         } else {
 315                 WREG32(DCCG_AUDIO_DTO1_PHASE, 24000);
 316                 WREG32(DCCG_AUDIO_DTO1_MODULE, clock);
 317         }
 318 }