1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* -*- linux-c -*- * 3 * 4 * ALSA driver for the digigram lx6464es interface 5 * 6 * Copyright (c) 2008, 2009 Tim Blechmann <tim@klingt.org> 7 */ 8 9 #include <linux/module.h> 10 #include <linux/init.h> 11 #include <linux/pci.h> 12 #include <linux/delay.h> 13 #include <linux/slab.h> 14 15 #include <sound/initval.h> 16 #include <sound/control.h> 17 #include <sound/info.h> 18 19 #include "lx6464es.h" 20 21 MODULE_AUTHOR("Tim Blechmann"); 22 MODULE_LICENSE("GPL"); 23 MODULE_DESCRIPTION("digigram lx6464es"); 24 MODULE_SUPPORTED_DEVICE("{digigram lx6464es{}}"); 25 26 27 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 28 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 29 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 30 31 module_param_array(index, int, NULL, 0444); 32 MODULE_PARM_DESC(index, "Index value for Digigram LX6464ES interface."); 33 module_param_array(id, charp, NULL, 0444); 34 MODULE_PARM_DESC(id, "ID string for Digigram LX6464ES interface."); 35 module_param_array(enable, bool, NULL, 0444); 36 MODULE_PARM_DESC(enable, "Enable/disable specific Digigram LX6464ES soundcards."); 37 38 static const char card_name[] = "LX6464ES"; 39 40 41 #define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056 42 43 static const struct pci_device_id snd_lx6464es_ids[] = { 44 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, 45 PCI_VENDOR_ID_DIGIGRAM, 46 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM), 47 }, /* LX6464ES */ 48 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, 49 PCI_VENDOR_ID_DIGIGRAM, 50 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM), 51 }, /* LX6464ES-CAE */ 52 { 0, }, 53 }; 54 55 MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids); 56 57 58 59 /* PGO pour USERo dans le registre pci_0x06/loc_0xEC */ 60 #define CHIPSC_RESET_XILINX (1L<<16) 61 62 63 /* alsa callbacks */ 64 static const struct snd_pcm_hardware lx_caps = { 65 .info = (SNDRV_PCM_INFO_MMAP | 66 SNDRV_PCM_INFO_INTERLEAVED | 67 SNDRV_PCM_INFO_MMAP_VALID | 68 SNDRV_PCM_INFO_SYNC_START), 69 .formats = (SNDRV_PCM_FMTBIT_S16_LE | 70 SNDRV_PCM_FMTBIT_S16_BE | 71 SNDRV_PCM_FMTBIT_S24_3LE | 72 SNDRV_PCM_FMTBIT_S24_3BE), 73 .rates = (SNDRV_PCM_RATE_CONTINUOUS | 74 SNDRV_PCM_RATE_8000_192000), 75 .rate_min = 8000, 76 .rate_max = 192000, 77 .channels_min = 2, 78 .channels_max = 64, 79 .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER, 80 .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2), 81 .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER), 82 .periods_min = 2, 83 .periods_max = MAX_STREAM_BUFFER, 84 }; 85 86 static int lx_set_granularity(struct lx6464es *chip, u32 gran); 87 88 89 static int lx_hardware_open(struct lx6464es *chip, 90 struct snd_pcm_substream *substream) 91 { 92 int err = 0; 93 struct snd_pcm_runtime *runtime = substream->runtime; 94 int channels = runtime->channels; 95 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 96 97 snd_pcm_uframes_t period_size = runtime->period_size; 98 99 dev_dbg(chip->card->dev, "allocating pipe for %d channels\n", channels); 100 err = lx_pipe_allocate(chip, 0, is_capture, channels); 101 if (err < 0) { 102 dev_err(chip->card->dev, LXP "allocating pipe failed\n"); 103 return err; 104 } 105 106 err = lx_set_granularity(chip, period_size); 107 if (err < 0) { 108 dev_err(chip->card->dev, "setting granularity to %ld failed\n", 109 period_size); 110 return err; 111 } 112 113 return 0; 114 } 115 116 static int lx_hardware_start(struct lx6464es *chip, 117 struct snd_pcm_substream *substream) 118 { 119 int err = 0; 120 struct snd_pcm_runtime *runtime = substream->runtime; 121 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 122 123 dev_dbg(chip->card->dev, "setting stream format\n"); 124 err = lx_stream_set_format(chip, runtime, 0, is_capture); 125 if (err < 0) { 126 dev_err(chip->card->dev, "setting stream format failed\n"); 127 return err; 128 } 129 130 dev_dbg(chip->card->dev, "starting pipe\n"); 131 err = lx_pipe_start(chip, 0, is_capture); 132 if (err < 0) { 133 dev_err(chip->card->dev, "starting pipe failed\n"); 134 return err; 135 } 136 137 dev_dbg(chip->card->dev, "waiting for pipe to start\n"); 138 err = lx_pipe_wait_for_start(chip, 0, is_capture); 139 if (err < 0) { 140 dev_err(chip->card->dev, "waiting for pipe failed\n"); 141 return err; 142 } 143 144 return err; 145 } 146 147 148 static int lx_hardware_stop(struct lx6464es *chip, 149 struct snd_pcm_substream *substream) 150 { 151 int err = 0; 152 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 153 154 dev_dbg(chip->card->dev, "pausing pipe\n"); 155 err = lx_pipe_pause(chip, 0, is_capture); 156 if (err < 0) { 157 dev_err(chip->card->dev, "pausing pipe failed\n"); 158 return err; 159 } 160 161 dev_dbg(chip->card->dev, "waiting for pipe to become idle\n"); 162 err = lx_pipe_wait_for_idle(chip, 0, is_capture); 163 if (err < 0) { 164 dev_err(chip->card->dev, "waiting for pipe failed\n"); 165 return err; 166 } 167 168 dev_dbg(chip->card->dev, "stopping pipe\n"); 169 err = lx_pipe_stop(chip, 0, is_capture); 170 if (err < 0) { 171 dev_err(chip->card->dev, "stopping pipe failed\n"); 172 return err; 173 } 174 175 return err; 176 } 177 178 179 static int lx_hardware_close(struct lx6464es *chip, 180 struct snd_pcm_substream *substream) 181 { 182 int err = 0; 183 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 184 185 dev_dbg(chip->card->dev, "releasing pipe\n"); 186 err = lx_pipe_release(chip, 0, is_capture); 187 if (err < 0) { 188 dev_err(chip->card->dev, "releasing pipe failed\n"); 189 return err; 190 } 191 192 return err; 193 } 194 195 196 static int lx_pcm_open(struct snd_pcm_substream *substream) 197 { 198 struct lx6464es *chip = snd_pcm_substream_chip(substream); 199 struct snd_pcm_runtime *runtime = substream->runtime; 200 int err = 0; 201 int board_rate; 202 203 dev_dbg(chip->card->dev, "->lx_pcm_open\n"); 204 mutex_lock(&chip->setup_mutex); 205 206 /* copy the struct snd_pcm_hardware struct */ 207 runtime->hw = lx_caps; 208 209 #if 0 210 /* buffer-size should better be multiple of period-size */ 211 err = snd_pcm_hw_constraint_integer(runtime, 212 SNDRV_PCM_HW_PARAM_PERIODS); 213 if (err < 0) { 214 dev_warn(chip->card->dev, "could not constrain periods\n"); 215 goto exit; 216 } 217 #endif 218 219 /* the clock rate cannot be changed */ 220 board_rate = chip->board_sample_rate; 221 err = snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_RATE, 222 board_rate); 223 224 if (err < 0) { 225 dev_warn(chip->card->dev, "could not constrain periods\n"); 226 goto exit; 227 } 228 229 /* constrain period size */ 230 err = snd_pcm_hw_constraint_minmax(runtime, 231 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 232 MICROBLAZE_IBL_MIN, 233 MICROBLAZE_IBL_MAX); 234 if (err < 0) { 235 dev_warn(chip->card->dev, 236 "could not constrain period size\n"); 237 goto exit; 238 } 239 240 snd_pcm_hw_constraint_step(runtime, 0, 241 SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); 242 243 snd_pcm_set_sync(substream); 244 err = 0; 245 246 exit: 247 runtime->private_data = chip; 248 249 mutex_unlock(&chip->setup_mutex); 250 dev_dbg(chip->card->dev, "<-lx_pcm_open, %d\n", err); 251 return err; 252 } 253 254 static int lx_pcm_close(struct snd_pcm_substream *substream) 255 { 256 dev_dbg(substream->pcm->card->dev, "->lx_pcm_close\n"); 257 return 0; 258 } 259 260 static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream 261 *substream) 262 { 263 struct lx6464es *chip = snd_pcm_substream_chip(substream); 264 snd_pcm_uframes_t pos; 265 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 266 267 struct lx_stream *lx_stream = is_capture ? &chip->capture_stream : 268 &chip->playback_stream; 269 270 dev_dbg(chip->card->dev, "->lx_pcm_stream_pointer\n"); 271 272 mutex_lock(&chip->lock); 273 pos = lx_stream->frame_pos * substream->runtime->period_size; 274 mutex_unlock(&chip->lock); 275 276 dev_dbg(chip->card->dev, "stream_pointer at %ld\n", pos); 277 return pos; 278 } 279 280 static int lx_pcm_prepare(struct snd_pcm_substream *substream) 281 { 282 struct lx6464es *chip = snd_pcm_substream_chip(substream); 283 int err = 0; 284 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 285 286 dev_dbg(chip->card->dev, "->lx_pcm_prepare\n"); 287 288 mutex_lock(&chip->setup_mutex); 289 290 if (chip->hardware_running[is_capture]) { 291 err = lx_hardware_stop(chip, substream); 292 if (err < 0) { 293 dev_err(chip->card->dev, "failed to stop hardware. " 294 "Error code %d\n", err); 295 goto exit; 296 } 297 298 err = lx_hardware_close(chip, substream); 299 if (err < 0) { 300 dev_err(chip->card->dev, "failed to close hardware. " 301 "Error code %d\n", err); 302 goto exit; 303 } 304 } 305 306 dev_dbg(chip->card->dev, "opening hardware\n"); 307 err = lx_hardware_open(chip, substream); 308 if (err < 0) { 309 dev_err(chip->card->dev, "failed to open hardware. " 310 "Error code %d\n", err); 311 goto exit; 312 } 313 314 err = lx_hardware_start(chip, substream); 315 if (err < 0) { 316 dev_err(chip->card->dev, "failed to start hardware. " 317 "Error code %d\n", err); 318 goto exit; 319 } 320 321 chip->hardware_running[is_capture] = 1; 322 323 if (chip->board_sample_rate != substream->runtime->rate) { 324 if (!err) 325 chip->board_sample_rate = substream->runtime->rate; 326 } 327 328 exit: 329 mutex_unlock(&chip->setup_mutex); 330 return err; 331 } 332 333 static int lx_pcm_hw_params(struct snd_pcm_substream *substream, 334 struct snd_pcm_hw_params *hw_params, int is_capture) 335 { 336 struct lx6464es *chip = snd_pcm_substream_chip(substream); 337 int err = 0; 338 339 dev_dbg(chip->card->dev, "->lx_pcm_hw_params\n"); 340 341 mutex_lock(&chip->setup_mutex); 342 343 /* set dma buffer */ 344 err = snd_pcm_lib_malloc_pages(substream, 345 params_buffer_bytes(hw_params)); 346 347 if (is_capture) 348 chip->capture_stream.stream = substream; 349 else 350 chip->playback_stream.stream = substream; 351 352 mutex_unlock(&chip->setup_mutex); 353 return err; 354 } 355 356 static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream, 357 struct snd_pcm_hw_params *hw_params) 358 { 359 return lx_pcm_hw_params(substream, hw_params, 0); 360 } 361 362 static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream, 363 struct snd_pcm_hw_params *hw_params) 364 { 365 return lx_pcm_hw_params(substream, hw_params, 1); 366 } 367 368 static int lx_pcm_hw_free(struct snd_pcm_substream *substream) 369 { 370 struct lx6464es *chip = snd_pcm_substream_chip(substream); 371 int err = 0; 372 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 373 374 dev_dbg(chip->card->dev, "->lx_pcm_hw_free\n"); 375 mutex_lock(&chip->setup_mutex); 376 377 if (chip->hardware_running[is_capture]) { 378 err = lx_hardware_stop(chip, substream); 379 if (err < 0) { 380 dev_err(chip->card->dev, "failed to stop hardware. " 381 "Error code %d\n", err); 382 goto exit; 383 } 384 385 err = lx_hardware_close(chip, substream); 386 if (err < 0) { 387 dev_err(chip->card->dev, "failed to close hardware. " 388 "Error code %d\n", err); 389 goto exit; 390 } 391 392 chip->hardware_running[is_capture] = 0; 393 } 394 395 err = snd_pcm_lib_free_pages(substream); 396 397 if (is_capture) 398 chip->capture_stream.stream = NULL; 399 else 400 chip->playback_stream.stream = NULL; 401 402 exit: 403 mutex_unlock(&chip->setup_mutex); 404 return err; 405 } 406 407 static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream) 408 { 409 struct snd_pcm_substream *substream = lx_stream->stream; 410 const unsigned int is_capture = lx_stream->is_capture; 411 412 int err; 413 414 const u32 channels = substream->runtime->channels; 415 const u32 bytes_per_frame = channels * 3; 416 const u32 period_size = substream->runtime->period_size; 417 const u32 periods = substream->runtime->periods; 418 const u32 period_bytes = period_size * bytes_per_frame; 419 420 dma_addr_t buf = substream->dma_buffer.addr; 421 int i; 422 423 u32 needed, freed; 424 u32 size_array[5]; 425 426 for (i = 0; i != periods; ++i) { 427 u32 buffer_index = 0; 428 429 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, 430 size_array); 431 dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", 432 needed, freed); 433 434 err = lx_buffer_give(chip, 0, is_capture, period_bytes, 435 lower_32_bits(buf), upper_32_bits(buf), 436 &buffer_index); 437 438 dev_dbg(chip->card->dev, "starting: buffer index %x on 0x%lx (%d bytes)\n", 439 buffer_index, (unsigned long)buf, period_bytes); 440 buf += period_bytes; 441 } 442 443 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array); 444 dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", needed, freed); 445 446 dev_dbg(chip->card->dev, "starting: starting stream\n"); 447 err = lx_stream_start(chip, 0, is_capture); 448 if (err < 0) 449 dev_err(chip->card->dev, "couldn't start stream\n"); 450 else 451 lx_stream->status = LX_STREAM_STATUS_RUNNING; 452 453 lx_stream->frame_pos = 0; 454 } 455 456 static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream) 457 { 458 const unsigned int is_capture = lx_stream->is_capture; 459 int err; 460 461 dev_dbg(chip->card->dev, "stopping: stopping stream\n"); 462 err = lx_stream_stop(chip, 0, is_capture); 463 if (err < 0) 464 dev_err(chip->card->dev, "couldn't stop stream\n"); 465 else 466 lx_stream->status = LX_STREAM_STATUS_FREE; 467 468 } 469 470 static void lx_trigger_dispatch_stream(struct lx6464es *chip, 471 struct lx_stream *lx_stream) 472 { 473 switch (lx_stream->status) { 474 case LX_STREAM_STATUS_SCHEDULE_RUN: 475 lx_trigger_start(chip, lx_stream); 476 break; 477 478 case LX_STREAM_STATUS_SCHEDULE_STOP: 479 lx_trigger_stop(chip, lx_stream); 480 break; 481 482 default: 483 break; 484 } 485 } 486 487 static int lx_pcm_trigger_dispatch(struct lx6464es *chip, 488 struct lx_stream *lx_stream, int cmd) 489 { 490 int err = 0; 491 492 mutex_lock(&chip->lock); 493 switch (cmd) { 494 case SNDRV_PCM_TRIGGER_START: 495 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN; 496 break; 497 498 case SNDRV_PCM_TRIGGER_STOP: 499 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP; 500 break; 501 502 default: 503 err = -EINVAL; 504 goto exit; 505 } 506 507 lx_trigger_dispatch_stream(chip, &chip->capture_stream); 508 lx_trigger_dispatch_stream(chip, &chip->playback_stream); 509 510 exit: 511 mutex_unlock(&chip->lock); 512 return err; 513 } 514 515 516 static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 517 { 518 struct lx6464es *chip = snd_pcm_substream_chip(substream); 519 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 520 struct lx_stream *stream = is_capture ? &chip->capture_stream : 521 &chip->playback_stream; 522 523 dev_dbg(chip->card->dev, "->lx_pcm_trigger\n"); 524 525 return lx_pcm_trigger_dispatch(chip, stream, cmd); 526 } 527 528 static int snd_lx6464es_free(struct lx6464es *chip) 529 { 530 dev_dbg(chip->card->dev, "->snd_lx6464es_free\n"); 531 532 lx_irq_disable(chip); 533 534 if (chip->irq >= 0) 535 free_irq(chip->irq, chip); 536 537 iounmap(chip->port_dsp_bar); 538 ioport_unmap(chip->port_plx_remapped); 539 540 pci_release_regions(chip->pci); 541 pci_disable_device(chip->pci); 542 543 kfree(chip); 544 545 return 0; 546 } 547 548 static int snd_lx6464es_dev_free(struct snd_device *device) 549 { 550 return snd_lx6464es_free(device->device_data); 551 } 552 553 /* reset the dsp during initialization */ 554 static int lx_init_xilinx_reset(struct lx6464es *chip) 555 { 556 int i; 557 u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC); 558 559 dev_dbg(chip->card->dev, "->lx_init_xilinx_reset\n"); 560 561 /* activate reset of xilinx */ 562 plx_reg &= ~CHIPSC_RESET_XILINX; 563 564 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); 565 msleep(1); 566 567 lx_plx_reg_write(chip, ePLX_MBOX3, 0); 568 msleep(1); 569 570 plx_reg |= CHIPSC_RESET_XILINX; 571 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); 572 573 /* deactivate reset of xilinx */ 574 for (i = 0; i != 100; ++i) { 575 u32 reg_mbox3; 576 msleep(10); 577 reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3); 578 if (reg_mbox3) { 579 dev_dbg(chip->card->dev, "xilinx reset done\n"); 580 dev_dbg(chip->card->dev, "xilinx took %d loops\n", i); 581 break; 582 } 583 } 584 585 /* todo: add some error handling? */ 586 587 /* clear mr */ 588 lx_dsp_reg_write(chip, eReg_CSM, 0); 589 590 /* le xilinx ES peut ne pas etre encore pret, on attend. */ 591 msleep(600); 592 593 return 0; 594 } 595 596 static int lx_init_xilinx_test(struct lx6464es *chip) 597 { 598 u32 reg; 599 600 dev_dbg(chip->card->dev, "->lx_init_xilinx_test\n"); 601 602 /* TEST if we have access to Xilinx/MicroBlaze */ 603 lx_dsp_reg_write(chip, eReg_CSM, 0); 604 605 reg = lx_dsp_reg_read(chip, eReg_CSM); 606 607 if (reg) { 608 dev_err(chip->card->dev, "Problem: Reg_CSM %x.\n", reg); 609 610 /* PCI9056_SPACE0_REMAP */ 611 lx_plx_reg_write(chip, ePLX_PCICR, 1); 612 613 reg = lx_dsp_reg_read(chip, eReg_CSM); 614 if (reg) { 615 dev_err(chip->card->dev, "Error: Reg_CSM %x.\n", reg); 616 return -EAGAIN; /* seems to be appropriate */ 617 } 618 } 619 620 dev_dbg(chip->card->dev, "Xilinx/MicroBlaze access test successful\n"); 621 622 return 0; 623 } 624 625 /* initialize ethersound */ 626 static int lx_init_ethersound_config(struct lx6464es *chip) 627 { 628 int i; 629 u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES); 630 631 /* configure 64 io channels */ 632 u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) | 633 (64 << IOCR_INPUTS_OFFSET) | 634 (64 << IOCR_OUTPUTS_OFFSET) | 635 (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET); 636 637 dev_dbg(chip->card->dev, "->lx_init_ethersound\n"); 638 639 chip->freq_ratio = FREQ_RATIO_SINGLE_MODE; 640 641 /* 642 * write it to the card ! 643 * this actually kicks the ES xilinx, the first time since poweron. 644 * the MAC address in the Reg_ADMACESMSB Reg_ADMACESLSB registers 645 * is not ready before this is done, and the bit 2 in Reg_CSES is set. 646 * */ 647 lx_dsp_reg_write(chip, eReg_CONFES, conf_es); 648 649 for (i = 0; i != 1000; ++i) { 650 if (lx_dsp_reg_read(chip, eReg_CSES) & 4) { 651 dev_dbg(chip->card->dev, "ethersound initialized after %dms\n", 652 i); 653 goto ethersound_initialized; 654 } 655 msleep(1); 656 } 657 dev_warn(chip->card->dev, 658 "ethersound could not be initialized after %dms\n", i); 659 return -ETIMEDOUT; 660 661 ethersound_initialized: 662 dev_dbg(chip->card->dev, "ethersound initialized\n"); 663 return 0; 664 } 665 666 static int lx_init_get_version_features(struct lx6464es *chip) 667 { 668 u32 dsp_version; 669 670 int err; 671 672 dev_dbg(chip->card->dev, "->lx_init_get_version_features\n"); 673 674 err = lx_dsp_get_version(chip, &dsp_version); 675 676 if (err == 0) { 677 u32 freq; 678 679 dev_info(chip->card->dev, "DSP version: V%02d.%02d #%d\n", 680 (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff, 681 dsp_version & 0xff); 682 683 /* later: what firmware version do we expect? */ 684 685 /* retrieve Play/Rec features */ 686 /* done here because we may have to handle alternate 687 * DSP files. */ 688 /* later */ 689 690 /* init the EtherSound sample rate */ 691 err = lx_dsp_get_clock_frequency(chip, &freq); 692 if (err == 0) 693 chip->board_sample_rate = freq; 694 dev_dbg(chip->card->dev, "actual clock frequency %d\n", freq); 695 } else { 696 dev_err(chip->card->dev, "DSP corrupted \n"); 697 err = -EAGAIN; 698 } 699 700 return err; 701 } 702 703 static int lx_set_granularity(struct lx6464es *chip, u32 gran) 704 { 705 int err = 0; 706 u32 snapped_gran = MICROBLAZE_IBL_MIN; 707 708 dev_dbg(chip->card->dev, "->lx_set_granularity\n"); 709 710 /* blocksize is a power of 2 */ 711 while ((snapped_gran < gran) && 712 (snapped_gran < MICROBLAZE_IBL_MAX)) { 713 snapped_gran *= 2; 714 } 715 716 if (snapped_gran == chip->pcm_granularity) 717 return 0; 718 719 err = lx_dsp_set_granularity(chip, snapped_gran); 720 if (err < 0) { 721 dev_warn(chip->card->dev, "could not set granularity\n"); 722 err = -EAGAIN; 723 } 724 725 if (snapped_gran != gran) 726 dev_err(chip->card->dev, "snapped blocksize to %d\n", snapped_gran); 727 728 dev_dbg(chip->card->dev, "set blocksize on board %d\n", snapped_gran); 729 chip->pcm_granularity = snapped_gran; 730 731 return err; 732 } 733 734 /* initialize and test the xilinx dsp chip */ 735 static int lx_init_dsp(struct lx6464es *chip) 736 { 737 int err; 738 int i; 739 740 dev_dbg(chip->card->dev, "->lx_init_dsp\n"); 741 742 dev_dbg(chip->card->dev, "initialize board\n"); 743 err = lx_init_xilinx_reset(chip); 744 if (err) 745 return err; 746 747 dev_dbg(chip->card->dev, "testing board\n"); 748 err = lx_init_xilinx_test(chip); 749 if (err) 750 return err; 751 752 dev_dbg(chip->card->dev, "initialize ethersound configuration\n"); 753 err = lx_init_ethersound_config(chip); 754 if (err) 755 return err; 756 757 lx_irq_enable(chip); 758 759 /** \todo the mac address should be ready by not, but it isn't, 760 * so we wait for it */ 761 for (i = 0; i != 1000; ++i) { 762 err = lx_dsp_get_mac(chip); 763 if (err) 764 return err; 765 if (chip->mac_address[0] || chip->mac_address[1] || chip->mac_address[2] || 766 chip->mac_address[3] || chip->mac_address[4] || chip->mac_address[5]) 767 goto mac_ready; 768 msleep(1); 769 } 770 return -ETIMEDOUT; 771 772 mac_ready: 773 dev_dbg(chip->card->dev, "mac address ready read after: %dms\n", i); 774 dev_info(chip->card->dev, 775 "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n", 776 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], 777 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 778 779 err = lx_init_get_version_features(chip); 780 if (err) 781 return err; 782 783 lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT); 784 785 chip->playback_mute = 0; 786 787 return err; 788 } 789 790 static const struct snd_pcm_ops lx_ops_playback = { 791 .open = lx_pcm_open, 792 .close = lx_pcm_close, 793 .ioctl = snd_pcm_lib_ioctl, 794 .prepare = lx_pcm_prepare, 795 .hw_params = lx_pcm_hw_params_playback, 796 .hw_free = lx_pcm_hw_free, 797 .trigger = lx_pcm_trigger, 798 .pointer = lx_pcm_stream_pointer, 799 }; 800 801 static const struct snd_pcm_ops lx_ops_capture = { 802 .open = lx_pcm_open, 803 .close = lx_pcm_close, 804 .ioctl = snd_pcm_lib_ioctl, 805 .prepare = lx_pcm_prepare, 806 .hw_params = lx_pcm_hw_params_capture, 807 .hw_free = lx_pcm_hw_free, 808 .trigger = lx_pcm_trigger, 809 .pointer = lx_pcm_stream_pointer, 810 }; 811 812 static int lx_pcm_create(struct lx6464es *chip) 813 { 814 int err; 815 struct snd_pcm *pcm; 816 817 u32 size = 64 * /* channels */ 818 3 * /* 24 bit samples */ 819 MAX_STREAM_BUFFER * /* periods */ 820 MICROBLAZE_IBL_MAX * /* frames per period */ 821 2; /* duplex */ 822 823 size = PAGE_ALIGN(size); 824 825 /* hardcoded device name & channel count */ 826 err = snd_pcm_new(chip->card, (char *)card_name, 0, 827 1, 1, &pcm); 828 if (err < 0) 829 return err; 830 831 pcm->private_data = chip; 832 833 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback); 834 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture); 835 836 pcm->info_flags = 0; 837 pcm->nonatomic = true; 838 strcpy(pcm->name, card_name); 839 840 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 841 snd_dma_pci_data(chip->pci), 842 size, size); 843 844 chip->pcm = pcm; 845 chip->capture_stream.is_capture = 1; 846 847 return 0; 848 } 849 850 static int lx_control_playback_info(struct snd_kcontrol *kcontrol, 851 struct snd_ctl_elem_info *uinfo) 852 { 853 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 854 uinfo->count = 1; 855 uinfo->value.integer.min = 0; 856 uinfo->value.integer.max = 1; 857 return 0; 858 } 859 860 static int lx_control_playback_get(struct snd_kcontrol *kcontrol, 861 struct snd_ctl_elem_value *ucontrol) 862 { 863 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 864 ucontrol->value.integer.value[0] = chip->playback_mute; 865 return 0; 866 } 867 868 static int lx_control_playback_put(struct snd_kcontrol *kcontrol, 869 struct snd_ctl_elem_value *ucontrol) 870 { 871 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 872 int changed = 0; 873 int current_value = chip->playback_mute; 874 875 if (current_value != ucontrol->value.integer.value[0]) { 876 lx_level_unmute(chip, 0, !current_value); 877 chip->playback_mute = !current_value; 878 changed = 1; 879 } 880 return changed; 881 } 882 883 static const struct snd_kcontrol_new lx_control_playback_switch = { 884 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 885 .name = "PCM Playback Switch", 886 .index = 0, 887 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 888 .private_value = 0, 889 .info = lx_control_playback_info, 890 .get = lx_control_playback_get, 891 .put = lx_control_playback_put 892 }; 893 894 895 896 static void lx_proc_levels_read(struct snd_info_entry *entry, 897 struct snd_info_buffer *buffer) 898 { 899 u32 levels[64]; 900 int err; 901 int i, j; 902 struct lx6464es *chip = entry->private_data; 903 904 snd_iprintf(buffer, "capture levels:\n"); 905 err = lx_level_peaks(chip, 1, 64, levels); 906 if (err < 0) 907 return; 908 909 for (i = 0; i != 8; ++i) { 910 for (j = 0; j != 8; ++j) 911 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 912 snd_iprintf(buffer, "\n"); 913 } 914 915 snd_iprintf(buffer, "\nplayback levels:\n"); 916 917 err = lx_level_peaks(chip, 0, 64, levels); 918 if (err < 0) 919 return; 920 921 for (i = 0; i != 8; ++i) { 922 for (j = 0; j != 8; ++j) 923 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 924 snd_iprintf(buffer, "\n"); 925 } 926 927 snd_iprintf(buffer, "\n"); 928 } 929 930 static int lx_proc_create(struct snd_card *card, struct lx6464es *chip) 931 { 932 return snd_card_ro_proc_new(card, "levels", chip, lx_proc_levels_read); 933 } 934 935 936 static int snd_lx6464es_create(struct snd_card *card, 937 struct pci_dev *pci, 938 struct lx6464es **rchip) 939 { 940 struct lx6464es *chip; 941 int err; 942 943 static struct snd_device_ops ops = { 944 .dev_free = snd_lx6464es_dev_free, 945 }; 946 947 dev_dbg(card->dev, "->snd_lx6464es_create\n"); 948 949 *rchip = NULL; 950 951 /* enable PCI device */ 952 err = pci_enable_device(pci); 953 if (err < 0) 954 return err; 955 956 pci_set_master(pci); 957 958 /* check if we can restrict PCI DMA transfers to 32 bits */ 959 err = dma_set_mask(&pci->dev, DMA_BIT_MASK(32)); 960 if (err < 0) { 961 dev_err(card->dev, 962 "architecture does not support 32bit PCI busmaster DMA\n"); 963 pci_disable_device(pci); 964 return -ENXIO; 965 } 966 967 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 968 if (chip == NULL) { 969 err = -ENOMEM; 970 goto alloc_failed; 971 } 972 973 chip->card = card; 974 chip->pci = pci; 975 chip->irq = -1; 976 977 /* initialize synchronization structs */ 978 mutex_init(&chip->lock); 979 mutex_init(&chip->msg_lock); 980 mutex_init(&chip->setup_mutex); 981 982 /* request resources */ 983 err = pci_request_regions(pci, card_name); 984 if (err < 0) 985 goto request_regions_failed; 986 987 /* plx port */ 988 chip->port_plx = pci_resource_start(pci, 1); 989 chip->port_plx_remapped = ioport_map(chip->port_plx, 990 pci_resource_len(pci, 1)); 991 992 /* dsp port */ 993 chip->port_dsp_bar = pci_ioremap_bar(pci, 2); 994 if (!chip->port_dsp_bar) { 995 dev_err(card->dev, "cannot remap PCI memory region\n"); 996 err = -ENOMEM; 997 goto remap_pci_failed; 998 } 999 1000 err = request_threaded_irq(pci->irq, lx_interrupt, lx_threaded_irq, 1001 IRQF_SHARED, KBUILD_MODNAME, chip); 1002 if (err) { 1003 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 1004 goto request_irq_failed; 1005 } 1006 chip->irq = pci->irq; 1007 1008 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 1009 if (err < 0) 1010 goto device_new_failed; 1011 1012 err = lx_init_dsp(chip); 1013 if (err < 0) { 1014 dev_err(card->dev, "error during DSP initialization\n"); 1015 return err; 1016 } 1017 1018 err = lx_pcm_create(chip); 1019 if (err < 0) 1020 return err; 1021 1022 err = lx_proc_create(card, chip); 1023 if (err < 0) 1024 return err; 1025 1026 err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch, 1027 chip)); 1028 if (err < 0) 1029 return err; 1030 1031 *rchip = chip; 1032 return 0; 1033 1034 device_new_failed: 1035 free_irq(pci->irq, chip); 1036 1037 request_irq_failed: 1038 iounmap(chip->port_dsp_bar); 1039 1040 remap_pci_failed: 1041 pci_release_regions(pci); 1042 1043 request_regions_failed: 1044 kfree(chip); 1045 1046 alloc_failed: 1047 pci_disable_device(pci); 1048 1049 return err; 1050 } 1051 1052 static int snd_lx6464es_probe(struct pci_dev *pci, 1053 const struct pci_device_id *pci_id) 1054 { 1055 static int dev; 1056 struct snd_card *card; 1057 struct lx6464es *chip; 1058 int err; 1059 1060 dev_dbg(&pci->dev, "->snd_lx6464es_probe\n"); 1061 1062 if (dev >= SNDRV_CARDS) 1063 return -ENODEV; 1064 if (!enable[dev]) { 1065 dev++; 1066 return -ENOENT; 1067 } 1068 1069 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 1070 0, &card); 1071 if (err < 0) 1072 return err; 1073 1074 err = snd_lx6464es_create(card, pci, &chip); 1075 if (err < 0) { 1076 dev_err(card->dev, "error during snd_lx6464es_create\n"); 1077 goto out_free; 1078 } 1079 1080 strcpy(card->driver, "LX6464ES"); 1081 sprintf(card->id, "LX6464ES_%02X%02X%02X", 1082 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 1083 1084 sprintf(card->shortname, "LX6464ES %02X.%02X.%02X.%02X.%02X.%02X", 1085 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], 1086 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 1087 1088 sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i", 1089 card->shortname, chip->port_plx, 1090 chip->port_dsp_bar, chip->irq); 1091 1092 err = snd_card_register(card); 1093 if (err < 0) 1094 goto out_free; 1095 1096 dev_dbg(chip->card->dev, "initialization successful\n"); 1097 pci_set_drvdata(pci, card); 1098 dev++; 1099 return 0; 1100 1101 out_free: 1102 snd_card_free(card); 1103 return err; 1104 1105 } 1106 1107 static void snd_lx6464es_remove(struct pci_dev *pci) 1108 { 1109 snd_card_free(pci_get_drvdata(pci)); 1110 } 1111 1112 1113 static struct pci_driver lx6464es_driver = { 1114 .name = KBUILD_MODNAME, 1115 .id_table = snd_lx6464es_ids, 1116 .probe = snd_lx6464es_probe, 1117 .remove = snd_lx6464es_remove, 1118 }; 1119 1120 module_pci_driver(lx6464es_driver); 1121