1 /* 2 * Copyright 2014 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 * Authors: Slava Grigorev <slava.grigorev@amd.com> 23 */ 24 25 #include <linux/gcd.h> 26 #include <drm/drmP.h> 27 #include <drm/drm_crtc.h> 28 #include "radeon.h" 29 #include "atom.h" 30 #include "radeon_audio.h" 31 32 void r600_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin, 33 u8 enable_mask); 34 void dce4_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin, 35 u8 enable_mask); 36 void dce6_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin, 37 u8 enable_mask); 38 u32 dce6_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg); 39 void dce6_endpoint_wreg(struct radeon_device *rdev, 40 u32 offset, u32 reg, u32 v); 41 void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder, 42 struct cea_sad *sads, int sad_count); 43 void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder, 44 struct cea_sad *sads, int sad_count); 45 void dce6_afmt_write_sad_regs(struct drm_encoder *encoder, 46 struct cea_sad *sads, int sad_count); 47 void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder, 48 u8 *sadb, int sad_count); 49 void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder, 50 u8 *sadb, int sad_count); 51 void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder, 52 u8 *sadb, int sad_count); 53 void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder, 54 u8 *sadb, int sad_count); 55 void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder, 56 u8 *sadb, int sad_count); 57 void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder, 58 u8 *sadb, int sad_count); 59 void dce4_afmt_write_latency_fields(struct drm_encoder *encoder, 60 struct drm_connector *connector, struct drm_display_mode *mode); 61 void dce6_afmt_write_latency_fields(struct drm_encoder *encoder, 62 struct drm_connector *connector, struct drm_display_mode *mode); 63 struct r600_audio_pin* r600_audio_get_pin(struct radeon_device *rdev); 64 struct r600_audio_pin* dce6_audio_get_pin(struct radeon_device *rdev); 65 void dce6_afmt_select_pin(struct drm_encoder *encoder); 66 void r600_hdmi_audio_set_dto(struct radeon_device *rdev, 67 struct radeon_crtc *crtc, unsigned int clock); 68 void dce3_2_audio_set_dto(struct radeon_device *rdev, 69 struct radeon_crtc *crtc, unsigned int clock); 70 void dce4_hdmi_audio_set_dto(struct radeon_device *rdev, 71 struct radeon_crtc *crtc, unsigned int clock); 72 void dce4_dp_audio_set_dto(struct radeon_device *rdev, 73 struct radeon_crtc *crtc, unsigned int clock); 74 void dce6_hdmi_audio_set_dto(struct radeon_device *rdev, 75 struct radeon_crtc *crtc, unsigned int clock); 76 void dce6_dp_audio_set_dto(struct radeon_device *rdev, 77 struct radeon_crtc *crtc, unsigned int clock); 78 void r600_set_avi_packet(struct radeon_device *rdev, u32 offset, 79 unsigned char *buffer, size_t size); 80 void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset, 81 unsigned char *buffer, size_t size); 82 void r600_hdmi_update_acr(struct drm_encoder *encoder, long offset, 83 const struct radeon_hdmi_acr *acr); 84 void dce3_2_hdmi_update_acr(struct drm_encoder *encoder, long offset, 85 const struct radeon_hdmi_acr *acr); 86 void evergreen_hdmi_update_acr(struct drm_encoder *encoder, long offset, 87 const struct radeon_hdmi_acr *acr); 88 void r600_set_vbi_packet(struct drm_encoder *encoder, u32 offset); 89 void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset); 90 void dce4_hdmi_set_color_depth(struct drm_encoder *encoder, 91 u32 offset, int bpc); 92 void r600_set_audio_packet(struct drm_encoder *encoder, u32 offset); 93 void dce3_2_set_audio_packet(struct drm_encoder *encoder, u32 offset); 94 void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset); 95 void r600_set_mute(struct drm_encoder *encoder, u32 offset, bool mute); 96 void dce3_2_set_mute(struct drm_encoder *encoder, u32 offset, bool mute); 97 void dce4_set_mute(struct drm_encoder *encoder, u32 offset, bool mute); 98 static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder, 99 struct drm_display_mode *mode); 100 static void radeon_audio_dp_mode_set(struct drm_encoder *encoder, 101 struct drm_display_mode *mode); 102 void r600_hdmi_enable(struct drm_encoder *encoder, bool enable); 103 void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable); 104 void evergreen_dp_enable(struct drm_encoder *encoder, bool enable); 105 106 static const u32 pin_offsets[7] = 107 { 108 (0x5e00 - 0x5e00), 109 (0x5e18 - 0x5e00), 110 (0x5e30 - 0x5e00), 111 (0x5e48 - 0x5e00), 112 (0x5e60 - 0x5e00), 113 (0x5e78 - 0x5e00), 114 (0x5e90 - 0x5e00), 115 }; 116 117 static u32 radeon_audio_rreg(struct radeon_device *rdev, u32 offset, u32 reg) 118 { 119 return RREG32(reg); 120 } 121 122 static void radeon_audio_wreg(struct radeon_device *rdev, u32 offset, 123 u32 reg, u32 v) 124 { 125 WREG32(reg, v); 126 } 127 128 static struct radeon_audio_basic_funcs r600_funcs = { 129 .endpoint_rreg = radeon_audio_rreg, 130 .endpoint_wreg = radeon_audio_wreg, 131 .enable = r600_audio_enable, 132 }; 133 134 static struct radeon_audio_basic_funcs dce32_funcs = { 135 .endpoint_rreg = radeon_audio_rreg, 136 .endpoint_wreg = radeon_audio_wreg, 137 .enable = r600_audio_enable, 138 }; 139 140 static struct radeon_audio_basic_funcs dce4_funcs = { 141 .endpoint_rreg = radeon_audio_rreg, 142 .endpoint_wreg = radeon_audio_wreg, 143 .enable = dce4_audio_enable, 144 }; 145 146 static struct radeon_audio_basic_funcs dce6_funcs = { 147 .endpoint_rreg = dce6_endpoint_rreg, 148 .endpoint_wreg = dce6_endpoint_wreg, 149 .enable = dce6_audio_enable, 150 }; 151 152 static struct radeon_audio_funcs r600_hdmi_funcs = { 153 .get_pin = r600_audio_get_pin, 154 .set_dto = r600_hdmi_audio_set_dto, 155 .update_acr = r600_hdmi_update_acr, 156 .set_vbi_packet = r600_set_vbi_packet, 157 .set_avi_packet = r600_set_avi_packet, 158 .set_audio_packet = r600_set_audio_packet, 159 .set_mute = r600_set_mute, 160 .mode_set = radeon_audio_hdmi_mode_set, 161 .dpms = r600_hdmi_enable, 162 }; 163 164 static struct radeon_audio_funcs dce32_hdmi_funcs = { 165 .get_pin = r600_audio_get_pin, 166 .write_sad_regs = dce3_2_afmt_write_sad_regs, 167 .write_speaker_allocation = dce3_2_afmt_hdmi_write_speaker_allocation, 168 .set_dto = dce3_2_audio_set_dto, 169 .update_acr = dce3_2_hdmi_update_acr, 170 .set_vbi_packet = r600_set_vbi_packet, 171 .set_avi_packet = r600_set_avi_packet, 172 .set_audio_packet = dce3_2_set_audio_packet, 173 .set_mute = dce3_2_set_mute, 174 .mode_set = radeon_audio_hdmi_mode_set, 175 .dpms = r600_hdmi_enable, 176 }; 177 178 static struct radeon_audio_funcs dce32_dp_funcs = { 179 .get_pin = r600_audio_get_pin, 180 .write_sad_regs = dce3_2_afmt_write_sad_regs, 181 .write_speaker_allocation = dce3_2_afmt_dp_write_speaker_allocation, 182 .set_dto = dce3_2_audio_set_dto, 183 .set_avi_packet = r600_set_avi_packet, 184 .set_audio_packet = dce3_2_set_audio_packet, 185 }; 186 187 static struct radeon_audio_funcs dce4_hdmi_funcs = { 188 .get_pin = r600_audio_get_pin, 189 .write_sad_regs = evergreen_hdmi_write_sad_regs, 190 .write_speaker_allocation = dce4_afmt_hdmi_write_speaker_allocation, 191 .write_latency_fields = dce4_afmt_write_latency_fields, 192 .set_dto = dce4_hdmi_audio_set_dto, 193 .update_acr = evergreen_hdmi_update_acr, 194 .set_vbi_packet = dce4_set_vbi_packet, 195 .set_color_depth = dce4_hdmi_set_color_depth, 196 .set_avi_packet = evergreen_set_avi_packet, 197 .set_audio_packet = dce4_set_audio_packet, 198 .set_mute = dce4_set_mute, 199 .mode_set = radeon_audio_hdmi_mode_set, 200 .dpms = evergreen_hdmi_enable, 201 }; 202 203 static struct radeon_audio_funcs dce4_dp_funcs = { 204 .get_pin = r600_audio_get_pin, 205 .write_sad_regs = evergreen_hdmi_write_sad_regs, 206 .write_speaker_allocation = dce4_afmt_dp_write_speaker_allocation, 207 .write_latency_fields = dce4_afmt_write_latency_fields, 208 .set_dto = dce4_dp_audio_set_dto, 209 .set_avi_packet = evergreen_set_avi_packet, 210 .set_audio_packet = dce4_set_audio_packet, 211 .mode_set = radeon_audio_dp_mode_set, 212 .dpms = evergreen_dp_enable, 213 }; 214 215 static struct radeon_audio_funcs dce6_hdmi_funcs = { 216 .select_pin = dce6_afmt_select_pin, 217 .get_pin = dce6_audio_get_pin, 218 .write_sad_regs = dce6_afmt_write_sad_regs, 219 .write_speaker_allocation = dce6_afmt_hdmi_write_speaker_allocation, 220 .write_latency_fields = dce6_afmt_write_latency_fields, 221 .set_dto = dce6_hdmi_audio_set_dto, 222 .update_acr = evergreen_hdmi_update_acr, 223 .set_vbi_packet = dce4_set_vbi_packet, 224 .set_color_depth = dce4_hdmi_set_color_depth, 225 .set_avi_packet = evergreen_set_avi_packet, 226 .set_audio_packet = dce4_set_audio_packet, 227 .set_mute = dce4_set_mute, 228 .mode_set = radeon_audio_hdmi_mode_set, 229 .dpms = evergreen_hdmi_enable, 230 }; 231 232 static struct radeon_audio_funcs dce6_dp_funcs = { 233 .select_pin = dce6_afmt_select_pin, 234 .get_pin = dce6_audio_get_pin, 235 .write_sad_regs = dce6_afmt_write_sad_regs, 236 .write_speaker_allocation = dce6_afmt_dp_write_speaker_allocation, 237 .write_latency_fields = dce6_afmt_write_latency_fields, 238 .set_dto = dce6_dp_audio_set_dto, 239 .set_avi_packet = evergreen_set_avi_packet, 240 .set_audio_packet = dce4_set_audio_packet, 241 .mode_set = radeon_audio_dp_mode_set, 242 .dpms = evergreen_dp_enable, 243 }; 244 245 static void radeon_audio_interface_init(struct radeon_device *rdev) 246 { 247 if (ASIC_IS_DCE6(rdev)) { 248 rdev->audio.funcs = &dce6_funcs; 249 rdev->audio.hdmi_funcs = &dce6_hdmi_funcs; 250 rdev->audio.dp_funcs = &dce6_dp_funcs; 251 } else if (ASIC_IS_DCE4(rdev)) { 252 rdev->audio.funcs = &dce4_funcs; 253 rdev->audio.hdmi_funcs = &dce4_hdmi_funcs; 254 rdev->audio.dp_funcs = &dce4_dp_funcs; 255 } else if (ASIC_IS_DCE32(rdev)) { 256 rdev->audio.funcs = &dce32_funcs; 257 rdev->audio.hdmi_funcs = &dce32_hdmi_funcs; 258 rdev->audio.dp_funcs = &dce32_dp_funcs; 259 } else { 260 rdev->audio.funcs = &r600_funcs; 261 rdev->audio.hdmi_funcs = &r600_hdmi_funcs; 262 rdev->audio.dp_funcs = 0; 263 } 264 } 265 266 static int radeon_audio_chipset_supported(struct radeon_device *rdev) 267 { 268 return ASIC_IS_DCE2(rdev) && !ASIC_IS_NODCE(rdev); 269 } 270 271 int radeon_audio_init(struct radeon_device *rdev) 272 { 273 int i; 274 275 if (!radeon_audio || !radeon_audio_chipset_supported(rdev)) 276 return 0; 277 278 rdev->audio.enabled = true; 279 280 if (ASIC_IS_DCE83(rdev)) /* KB: 2 streams, 3 endpoints */ 281 rdev->audio.num_pins = 3; 282 else if (ASIC_IS_DCE81(rdev)) /* KV: 4 streams, 7 endpoints */ 283 rdev->audio.num_pins = 7; 284 else if (ASIC_IS_DCE8(rdev)) /* BN/HW: 6 streams, 7 endpoints */ 285 rdev->audio.num_pins = 7; 286 else if (ASIC_IS_DCE64(rdev)) /* OL: 2 streams, 2 endpoints */ 287 rdev->audio.num_pins = 2; 288 else if (ASIC_IS_DCE61(rdev)) /* TN: 4 streams, 6 endpoints */ 289 rdev->audio.num_pins = 6; 290 else if (ASIC_IS_DCE6(rdev)) /* SI: 6 streams, 6 endpoints */ 291 rdev->audio.num_pins = 6; 292 else 293 rdev->audio.num_pins = 1; 294 295 for (i = 0; i < rdev->audio.num_pins; i++) { 296 rdev->audio.pin[i].channels = -1; 297 rdev->audio.pin[i].rate = -1; 298 rdev->audio.pin[i].bits_per_sample = -1; 299 rdev->audio.pin[i].status_bits = 0; 300 rdev->audio.pin[i].category_code = 0; 301 rdev->audio.pin[i].connected = false; 302 rdev->audio.pin[i].offset = pin_offsets[i]; 303 rdev->audio.pin[i].id = i; 304 } 305 306 radeon_audio_interface_init(rdev); 307 308 /* disable audio. it will be set up later */ 309 for (i = 0; i < rdev->audio.num_pins; i++) 310 radeon_audio_enable(rdev, &rdev->audio.pin[i], false); 311 312 return 0; 313 } 314 315 u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg) 316 { 317 if (rdev->audio.funcs->endpoint_rreg) 318 return rdev->audio.funcs->endpoint_rreg(rdev, offset, reg); 319 320 return 0; 321 } 322 323 void radeon_audio_endpoint_wreg(struct radeon_device *rdev, u32 offset, 324 u32 reg, u32 v) 325 { 326 if (rdev->audio.funcs->endpoint_wreg) 327 rdev->audio.funcs->endpoint_wreg(rdev, offset, reg, v); 328 } 329 330 static void radeon_audio_write_sad_regs(struct drm_encoder *encoder) 331 { 332 struct radeon_encoder *radeon_encoder; 333 struct drm_connector *connector; 334 struct radeon_connector *radeon_connector = NULL; 335 struct cea_sad *sads; 336 int sad_count; 337 338 list_for_each_entry(connector, 339 &encoder->dev->mode_config.connector_list, head) { 340 if (connector->encoder == encoder) { 341 radeon_connector = to_radeon_connector(connector); 342 break; 343 } 344 } 345 346 if (!radeon_connector) { 347 DRM_ERROR("Couldn't find encoder's connector\n"); 348 return; 349 } 350 351 sad_count = drm_edid_to_sad(radeon_connector_edid(connector), &sads); 352 if (sad_count <= 0) { 353 DRM_ERROR("Couldn't read SADs: %d\n", sad_count); 354 return; 355 } 356 BUG_ON(!sads); 357 358 radeon_encoder = to_radeon_encoder(encoder); 359 360 if (radeon_encoder->audio && radeon_encoder->audio->write_sad_regs) 361 radeon_encoder->audio->write_sad_regs(encoder, sads, sad_count); 362 363 kfree(sads); 364 } 365 366 static void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder) 367 { 368 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 369 struct drm_connector *connector; 370 struct radeon_connector *radeon_connector = NULL; 371 u8 *sadb = NULL; 372 int sad_count; 373 374 list_for_each_entry(connector, 375 &encoder->dev->mode_config.connector_list, head) { 376 if (connector->encoder == encoder) { 377 radeon_connector = to_radeon_connector(connector); 378 break; 379 } 380 } 381 382 if (!radeon_connector) { 383 DRM_ERROR("Couldn't find encoder's connector\n"); 384 return; 385 } 386 387 sad_count = drm_edid_to_speaker_allocation( 388 radeon_connector_edid(connector), &sadb); 389 if (sad_count < 0) { 390 DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n", 391 sad_count); 392 sad_count = 0; 393 } 394 395 if (radeon_encoder->audio && radeon_encoder->audio->write_speaker_allocation) 396 radeon_encoder->audio->write_speaker_allocation(encoder, sadb, sad_count); 397 398 kfree(sadb); 399 } 400 401 static void radeon_audio_write_latency_fields(struct drm_encoder *encoder, 402 struct drm_display_mode *mode) 403 { 404 struct radeon_encoder *radeon_encoder; 405 struct drm_connector *connector; 406 struct radeon_connector *radeon_connector = 0; 407 408 list_for_each_entry(connector, 409 &encoder->dev->mode_config.connector_list, head) { 410 if (connector->encoder == encoder) { 411 radeon_connector = to_radeon_connector(connector); 412 break; 413 } 414 } 415 416 if (!radeon_connector) { 417 DRM_ERROR("Couldn't find encoder's connector\n"); 418 return; 419 } 420 421 radeon_encoder = to_radeon_encoder(encoder); 422 423 if (radeon_encoder->audio && radeon_encoder->audio->write_latency_fields) 424 radeon_encoder->audio->write_latency_fields(encoder, connector, mode); 425 } 426 427 struct r600_audio_pin* radeon_audio_get_pin(struct drm_encoder *encoder) 428 { 429 struct radeon_device *rdev = encoder->dev->dev_private; 430 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 431 432 if (radeon_encoder->audio && radeon_encoder->audio->get_pin) 433 return radeon_encoder->audio->get_pin(rdev); 434 435 return NULL; 436 } 437 438 static void radeon_audio_select_pin(struct drm_encoder *encoder) 439 { 440 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 441 442 if (radeon_encoder->audio && radeon_encoder->audio->select_pin) 443 radeon_encoder->audio->select_pin(encoder); 444 } 445 446 void radeon_audio_enable(struct radeon_device *rdev, 447 struct r600_audio_pin *pin, u8 enable_mask) 448 { 449 if (rdev->audio.funcs->enable) 450 rdev->audio.funcs->enable(rdev, pin, enable_mask); 451 } 452 453 void radeon_audio_detect(struct drm_connector *connector, 454 enum drm_connector_status status) 455 { 456 struct radeon_device *rdev; 457 struct radeon_encoder *radeon_encoder; 458 struct radeon_encoder_atom_dig *dig; 459 460 if (!connector || !connector->encoder) 461 return; 462 463 if (!radeon_encoder_is_digital(connector->encoder)) 464 return; 465 466 rdev = connector->encoder->dev->dev_private; 467 radeon_encoder = to_radeon_encoder(connector->encoder); 468 dig = radeon_encoder->enc_priv; 469 470 if (!dig->afmt) 471 return; 472 473 if (status == connector_status_connected) { 474 struct radeon_connector *radeon_connector = to_radeon_connector(connector); 475 476 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort && 477 radeon_dp_getsinktype(radeon_connector) == 478 CONNECTOR_OBJECT_ID_DISPLAYPORT) 479 radeon_encoder->audio = rdev->audio.dp_funcs; 480 else 481 radeon_encoder->audio = rdev->audio.hdmi_funcs; 482 483 dig->afmt->pin = radeon_audio_get_pin(connector->encoder); 484 if (drm_detect_monitor_audio(radeon_connector_edid(connector))) { 485 radeon_audio_enable(rdev, dig->afmt->pin, 0xf); 486 } else { 487 radeon_audio_enable(rdev, dig->afmt->pin, 0); 488 dig->afmt->pin = NULL; 489 } 490 } else { 491 radeon_audio_enable(rdev, dig->afmt->pin, 0); 492 dig->afmt->pin = NULL; 493 } 494 } 495 496 void radeon_audio_fini(struct radeon_device *rdev) 497 { 498 int i; 499 500 if (!rdev->audio.enabled) 501 return; 502 503 for (i = 0; i < rdev->audio.num_pins; i++) 504 radeon_audio_enable(rdev, &rdev->audio.pin[i], false); 505 506 rdev->audio.enabled = false; 507 } 508 509 static void radeon_audio_set_dto(struct drm_encoder *encoder, unsigned int clock) 510 { 511 struct radeon_device *rdev = encoder->dev->dev_private; 512 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 513 struct radeon_crtc *crtc = to_radeon_crtc(encoder->crtc); 514 515 if (radeon_encoder->audio && radeon_encoder->audio->set_dto) 516 radeon_encoder->audio->set_dto(rdev, crtc, clock); 517 } 518 519 static int radeon_audio_set_avi_packet(struct drm_encoder *encoder, 520 struct drm_display_mode *mode) 521 { 522 struct radeon_device *rdev = encoder->dev->dev_private; 523 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 524 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 525 struct drm_connector *connector; 526 struct radeon_connector *radeon_connector = NULL; 527 u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; 528 struct hdmi_avi_infoframe frame; 529 int err; 530 531 list_for_each_entry(connector, 532 &encoder->dev->mode_config.connector_list, head) { 533 if (connector->encoder == encoder) { 534 radeon_connector = to_radeon_connector(connector); 535 break; 536 } 537 } 538 539 if (!radeon_connector) { 540 DRM_ERROR("Couldn't find encoder's connector\n"); 541 return -ENOENT; 542 } 543 544 err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode); 545 if (err < 0) { 546 DRM_ERROR("failed to setup AVI infoframe: %d\n", err); 547 return err; 548 } 549 550 if (drm_rgb_quant_range_selectable(radeon_connector_edid(connector))) { 551 if (radeon_encoder->output_csc == RADEON_OUTPUT_CSC_TVRGB) 552 frame.quantization_range = HDMI_QUANTIZATION_RANGE_LIMITED; 553 else 554 frame.quantization_range = HDMI_QUANTIZATION_RANGE_FULL; 555 } else { 556 frame.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT; 557 } 558 559 err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer)); 560 if (err < 0) { 561 DRM_ERROR("failed to pack AVI infoframe: %d\n", err); 562 return err; 563 } 564 565 if (dig && dig->afmt && 566 radeon_encoder->audio && radeon_encoder->audio->set_avi_packet) 567 radeon_encoder->audio->set_avi_packet(rdev, dig->afmt->offset, 568 buffer, sizeof(buffer)); 569 570 return 0; 571 } 572 573 /* 574 * calculate CTS and N values if they are not found in the table 575 */ 576 static void radeon_audio_calc_cts(unsigned int clock, int *CTS, int *N, int freq) 577 { 578 int n, cts; 579 unsigned long div, mul; 580 581 /* Safe, but overly large values */ 582 n = 128 * freq; 583 cts = clock * 1000; 584 585 /* Smallest valid fraction */ 586 div = gcd(n, cts); 587 588 n /= div; 589 cts /= div; 590 591 /* 592 * The optimal N is 128*freq/1000. Calculate the closest larger 593 * value that doesn't truncate any bits. 594 */ 595 mul = ((128*freq/1000) + (n-1))/n; 596 597 n *= mul; 598 cts *= mul; 599 600 /* Check that we are in spec (not always possible) */ 601 if (n < (128*freq/1500)) 602 printk(KERN_WARNING "Calculated ACR N value is too small. You may experience audio problems.\n"); 603 if (n > (128*freq/300)) 604 printk(KERN_WARNING "Calculated ACR N value is too large. You may experience audio problems.\n"); 605 606 *N = n; 607 *CTS = cts; 608 609 DRM_DEBUG("Calculated ACR timing N=%d CTS=%d for frequency %d\n", 610 *N, *CTS, freq); 611 } 612 613 static const struct radeon_hdmi_acr* radeon_audio_acr(unsigned int clock) 614 { 615 static struct radeon_hdmi_acr res; 616 u8 i; 617 618 static const struct radeon_hdmi_acr hdmi_predefined_acr[] = { 619 /* 32kHz 44.1kHz 48kHz */ 620 /* Clock N CTS N CTS N CTS */ 621 { 25175, 4096, 25175, 28224, 125875, 6144, 25175 }, /* 25,20/1.001 MHz */ 622 { 25200, 4096, 25200, 6272, 28000, 6144, 25200 }, /* 25.20 MHz */ 623 { 27000, 4096, 27000, 6272, 30000, 6144, 27000 }, /* 27.00 MHz */ 624 { 27027, 4096, 27027, 6272, 30030, 6144, 27027 }, /* 27.00*1.001 MHz */ 625 { 54000, 4096, 54000, 6272, 60000, 6144, 54000 }, /* 54.00 MHz */ 626 { 54054, 4096, 54054, 6272, 60060, 6144, 54054 }, /* 54.00*1.001 MHz */ 627 { 74176, 4096, 74176, 5733, 75335, 6144, 74176 }, /* 74.25/1.001 MHz */ 628 { 74250, 4096, 74250, 6272, 82500, 6144, 74250 }, /* 74.25 MHz */ 629 { 148352, 4096, 148352, 5733, 150670, 6144, 148352 }, /* 148.50/1.001 MHz */ 630 { 148500, 4096, 148500, 6272, 165000, 6144, 148500 }, /* 148.50 MHz */ 631 }; 632 633 /* Precalculated values for common clocks */ 634 for (i = 0; i < ARRAY_SIZE(hdmi_predefined_acr); i++) 635 if (hdmi_predefined_acr[i].clock == clock) 636 return &hdmi_predefined_acr[i]; 637 638 /* And odd clocks get manually calculated */ 639 radeon_audio_calc_cts(clock, &res.cts_32khz, &res.n_32khz, 32000); 640 radeon_audio_calc_cts(clock, &res.cts_44_1khz, &res.n_44_1khz, 44100); 641 radeon_audio_calc_cts(clock, &res.cts_48khz, &res.n_48khz, 48000); 642 643 return &res; 644 } 645 646 /* 647 * update the N and CTS parameters for a given pixel clock rate 648 */ 649 static void radeon_audio_update_acr(struct drm_encoder *encoder, unsigned int clock) 650 { 651 const struct radeon_hdmi_acr *acr = radeon_audio_acr(clock); 652 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 653 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 654 655 if (!dig || !dig->afmt) 656 return; 657 658 if (radeon_encoder->audio && radeon_encoder->audio->update_acr) 659 radeon_encoder->audio->update_acr(encoder, dig->afmt->offset, acr); 660 } 661 662 static void radeon_audio_set_vbi_packet(struct drm_encoder *encoder) 663 { 664 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 665 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 666 667 if (!dig || !dig->afmt) 668 return; 669 670 if (radeon_encoder->audio && radeon_encoder->audio->set_vbi_packet) 671 radeon_encoder->audio->set_vbi_packet(encoder, dig->afmt->offset); 672 } 673 674 static void radeon_hdmi_set_color_depth(struct drm_encoder *encoder) 675 { 676 int bpc = 8; 677 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 678 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 679 680 if (!dig || !dig->afmt) 681 return; 682 683 if (encoder->crtc) { 684 struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc); 685 bpc = radeon_crtc->bpc; 686 } 687 688 if (radeon_encoder->audio && radeon_encoder->audio->set_color_depth) 689 radeon_encoder->audio->set_color_depth(encoder, dig->afmt->offset, bpc); 690 } 691 692 static void radeon_audio_set_audio_packet(struct drm_encoder *encoder) 693 { 694 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 695 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 696 697 if (!dig || !dig->afmt) 698 return; 699 700 if (radeon_encoder->audio && radeon_encoder->audio->set_audio_packet) 701 radeon_encoder->audio->set_audio_packet(encoder, dig->afmt->offset); 702 } 703 704 static void radeon_audio_set_mute(struct drm_encoder *encoder, bool mute) 705 { 706 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 707 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 708 709 if (!dig || !dig->afmt) 710 return; 711 712 if (radeon_encoder->audio && radeon_encoder->audio->set_mute) 713 radeon_encoder->audio->set_mute(encoder, dig->afmt->offset, mute); 714 } 715 716 /* 717 * update the info frames with the data from the current display mode 718 */ 719 static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder, 720 struct drm_display_mode *mode) 721 { 722 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 723 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 724 725 if (!dig || !dig->afmt) 726 return; 727 728 radeon_audio_set_mute(encoder, true); 729 730 radeon_audio_write_speaker_allocation(encoder); 731 radeon_audio_write_sad_regs(encoder); 732 radeon_audio_write_latency_fields(encoder, mode); 733 radeon_audio_set_dto(encoder, mode->clock); 734 radeon_audio_set_vbi_packet(encoder); 735 radeon_hdmi_set_color_depth(encoder); 736 radeon_audio_update_acr(encoder, mode->clock); 737 radeon_audio_set_audio_packet(encoder); 738 radeon_audio_select_pin(encoder); 739 740 if (radeon_audio_set_avi_packet(encoder, mode) < 0) 741 return; 742 743 radeon_audio_set_mute(encoder, false); 744 } 745 746 static void radeon_audio_dp_mode_set(struct drm_encoder *encoder, 747 struct drm_display_mode *mode) 748 { 749 struct drm_device *dev = encoder->dev; 750 struct radeon_device *rdev = dev->dev_private; 751 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 752 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; 753 struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); 754 struct radeon_connector *radeon_connector = to_radeon_connector(connector); 755 struct radeon_connector_atom_dig *dig_connector = 756 radeon_connector->con_priv; 757 758 if (!dig || !dig->afmt) 759 return; 760 761 radeon_audio_write_speaker_allocation(encoder); 762 radeon_audio_write_sad_regs(encoder); 763 radeon_audio_write_latency_fields(encoder, mode); 764 if (rdev->clock.dp_extclk || ASIC_IS_DCE5(rdev)) 765 radeon_audio_set_dto(encoder, rdev->clock.default_dispclk * 10); 766 else 767 radeon_audio_set_dto(encoder, dig_connector->dp_clock); 768 radeon_audio_set_audio_packet(encoder); 769 radeon_audio_select_pin(encoder); 770 771 if (radeon_audio_set_avi_packet(encoder, mode) < 0) 772 return; 773 } 774 775 void radeon_audio_mode_set(struct drm_encoder *encoder, 776 struct drm_display_mode *mode) 777 { 778 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 779 780 if (radeon_encoder->audio && radeon_encoder->audio->mode_set) 781 radeon_encoder->audio->mode_set(encoder, mode); 782 } 783 784 void radeon_audio_dpms(struct drm_encoder *encoder, int mode) 785 { 786 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 787 788 if (radeon_encoder->audio && radeon_encoder->audio->dpms) 789 radeon_encoder->audio->dpms(encoder, mode == DRM_MODE_DPMS_ON); 790 } 791