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 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, 53 PCI_VENDOR_ID_DIGIGRAM, 54 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_SERIAL_SUBSYSTEM), 55 }, /* LX6464ESe */ 56 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, 57 PCI_VENDOR_ID_DIGIGRAM, 58 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_CAE_SERIAL_SUBSYSTEM), 59 }, /* LX6464ESe-CAE */ 60 { 0, }, 61 }; 62 63 MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids); 64 65 66 67 /* PGO pour USERo dans le registre pci_0x06/loc_0xEC */ 68 #define CHIPSC_RESET_XILINX (1L<<16) 69 70 71 /* alsa callbacks */ 72 static const struct snd_pcm_hardware lx_caps = { 73 .info = (SNDRV_PCM_INFO_MMAP | 74 SNDRV_PCM_INFO_INTERLEAVED | 75 SNDRV_PCM_INFO_MMAP_VALID | 76 SNDRV_PCM_INFO_SYNC_START), 77 .formats = (SNDRV_PCM_FMTBIT_S16_LE | 78 SNDRV_PCM_FMTBIT_S16_BE | 79 SNDRV_PCM_FMTBIT_S24_3LE | 80 SNDRV_PCM_FMTBIT_S24_3BE), 81 .rates = (SNDRV_PCM_RATE_CONTINUOUS | 82 SNDRV_PCM_RATE_8000_192000), 83 .rate_min = 8000, 84 .rate_max = 192000, 85 .channels_min = 2, 86 .channels_max = 64, 87 .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER, 88 .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2), 89 .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER), 90 .periods_min = 2, 91 .periods_max = MAX_STREAM_BUFFER, 92 }; 93 94 static int lx_set_granularity(struct lx6464es *chip, u32 gran); 95 96 97 static int lx_hardware_open(struct lx6464es *chip, 98 struct snd_pcm_substream *substream) 99 { 100 int err = 0; 101 struct snd_pcm_runtime *runtime = substream->runtime; 102 int channels = runtime->channels; 103 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 104 105 snd_pcm_uframes_t period_size = runtime->period_size; 106 107 dev_dbg(chip->card->dev, "allocating pipe for %d channels\n", channels); 108 err = lx_pipe_allocate(chip, 0, is_capture, channels); 109 if (err < 0) { 110 dev_err(chip->card->dev, LXP "allocating pipe failed\n"); 111 return err; 112 } 113 114 err = lx_set_granularity(chip, period_size); 115 if (err < 0) { 116 dev_err(chip->card->dev, "setting granularity to %ld failed\n", 117 period_size); 118 return err; 119 } 120 121 return 0; 122 } 123 124 static int lx_hardware_start(struct lx6464es *chip, 125 struct snd_pcm_substream *substream) 126 { 127 int err = 0; 128 struct snd_pcm_runtime *runtime = substream->runtime; 129 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 130 131 dev_dbg(chip->card->dev, "setting stream format\n"); 132 err = lx_stream_set_format(chip, runtime, 0, is_capture); 133 if (err < 0) { 134 dev_err(chip->card->dev, "setting stream format failed\n"); 135 return err; 136 } 137 138 dev_dbg(chip->card->dev, "starting pipe\n"); 139 err = lx_pipe_start(chip, 0, is_capture); 140 if (err < 0) { 141 dev_err(chip->card->dev, "starting pipe failed\n"); 142 return err; 143 } 144 145 dev_dbg(chip->card->dev, "waiting for pipe to start\n"); 146 err = lx_pipe_wait_for_start(chip, 0, is_capture); 147 if (err < 0) { 148 dev_err(chip->card->dev, "waiting for pipe failed\n"); 149 return err; 150 } 151 152 return err; 153 } 154 155 156 static int lx_hardware_stop(struct lx6464es *chip, 157 struct snd_pcm_substream *substream) 158 { 159 int err = 0; 160 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 161 162 dev_dbg(chip->card->dev, "pausing pipe\n"); 163 err = lx_pipe_pause(chip, 0, is_capture); 164 if (err < 0) { 165 dev_err(chip->card->dev, "pausing pipe failed\n"); 166 return err; 167 } 168 169 dev_dbg(chip->card->dev, "waiting for pipe to become idle\n"); 170 err = lx_pipe_wait_for_idle(chip, 0, is_capture); 171 if (err < 0) { 172 dev_err(chip->card->dev, "waiting for pipe failed\n"); 173 return err; 174 } 175 176 dev_dbg(chip->card->dev, "stopping pipe\n"); 177 err = lx_pipe_stop(chip, 0, is_capture); 178 if (err < 0) { 179 dev_err(chip->card->dev, "stopping pipe failed\n"); 180 return err; 181 } 182 183 return err; 184 } 185 186 187 static int lx_hardware_close(struct lx6464es *chip, 188 struct snd_pcm_substream *substream) 189 { 190 int err = 0; 191 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 192 193 dev_dbg(chip->card->dev, "releasing pipe\n"); 194 err = lx_pipe_release(chip, 0, is_capture); 195 if (err < 0) { 196 dev_err(chip->card->dev, "releasing pipe failed\n"); 197 return err; 198 } 199 200 return err; 201 } 202 203 204 static int lx_pcm_open(struct snd_pcm_substream *substream) 205 { 206 struct lx6464es *chip = snd_pcm_substream_chip(substream); 207 struct snd_pcm_runtime *runtime = substream->runtime; 208 int err = 0; 209 int board_rate; 210 211 dev_dbg(chip->card->dev, "->lx_pcm_open\n"); 212 mutex_lock(&chip->setup_mutex); 213 214 /* copy the struct snd_pcm_hardware struct */ 215 runtime->hw = lx_caps; 216 217 #if 0 218 /* buffer-size should better be multiple of period-size */ 219 err = snd_pcm_hw_constraint_integer(runtime, 220 SNDRV_PCM_HW_PARAM_PERIODS); 221 if (err < 0) { 222 dev_warn(chip->card->dev, "could not constrain periods\n"); 223 goto exit; 224 } 225 #endif 226 227 /* the clock rate cannot be changed */ 228 board_rate = chip->board_sample_rate; 229 err = snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_RATE, 230 board_rate); 231 232 if (err < 0) { 233 dev_warn(chip->card->dev, "could not constrain periods\n"); 234 goto exit; 235 } 236 237 /* constrain period size */ 238 err = snd_pcm_hw_constraint_minmax(runtime, 239 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 240 MICROBLAZE_IBL_MIN, 241 MICROBLAZE_IBL_MAX); 242 if (err < 0) { 243 dev_warn(chip->card->dev, 244 "could not constrain period size\n"); 245 goto exit; 246 } 247 248 snd_pcm_hw_constraint_step(runtime, 0, 249 SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); 250 251 snd_pcm_set_sync(substream); 252 err = 0; 253 254 exit: 255 runtime->private_data = chip; 256 257 mutex_unlock(&chip->setup_mutex); 258 dev_dbg(chip->card->dev, "<-lx_pcm_open, %d\n", err); 259 return err; 260 } 261 262 static int lx_pcm_close(struct snd_pcm_substream *substream) 263 { 264 dev_dbg(substream->pcm->card->dev, "->lx_pcm_close\n"); 265 return 0; 266 } 267 268 static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream 269 *substream) 270 { 271 struct lx6464es *chip = snd_pcm_substream_chip(substream); 272 snd_pcm_uframes_t pos; 273 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 274 275 struct lx_stream *lx_stream = is_capture ? &chip->capture_stream : 276 &chip->playback_stream; 277 278 dev_dbg(chip->card->dev, "->lx_pcm_stream_pointer\n"); 279 280 mutex_lock(&chip->lock); 281 pos = lx_stream->frame_pos * substream->runtime->period_size; 282 mutex_unlock(&chip->lock); 283 284 dev_dbg(chip->card->dev, "stream_pointer at %ld\n", pos); 285 return pos; 286 } 287 288 static int lx_pcm_prepare(struct snd_pcm_substream *substream) 289 { 290 struct lx6464es *chip = snd_pcm_substream_chip(substream); 291 int err = 0; 292 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 293 294 dev_dbg(chip->card->dev, "->lx_pcm_prepare\n"); 295 296 mutex_lock(&chip->setup_mutex); 297 298 if (chip->hardware_running[is_capture]) { 299 err = lx_hardware_stop(chip, substream); 300 if (err < 0) { 301 dev_err(chip->card->dev, "failed to stop hardware. " 302 "Error code %d\n", err); 303 goto exit; 304 } 305 306 err = lx_hardware_close(chip, substream); 307 if (err < 0) { 308 dev_err(chip->card->dev, "failed to close hardware. " 309 "Error code %d\n", err); 310 goto exit; 311 } 312 } 313 314 dev_dbg(chip->card->dev, "opening hardware\n"); 315 err = lx_hardware_open(chip, substream); 316 if (err < 0) { 317 dev_err(chip->card->dev, "failed to open hardware. " 318 "Error code %d\n", err); 319 goto exit; 320 } 321 322 err = lx_hardware_start(chip, substream); 323 if (err < 0) { 324 dev_err(chip->card->dev, "failed to start hardware. " 325 "Error code %d\n", err); 326 goto exit; 327 } 328 329 chip->hardware_running[is_capture] = 1; 330 331 if (chip->board_sample_rate != substream->runtime->rate) { 332 if (!err) 333 chip->board_sample_rate = substream->runtime->rate; 334 } 335 336 exit: 337 mutex_unlock(&chip->setup_mutex); 338 return err; 339 } 340 341 static int lx_pcm_hw_params(struct snd_pcm_substream *substream, 342 struct snd_pcm_hw_params *hw_params, int is_capture) 343 { 344 struct lx6464es *chip = snd_pcm_substream_chip(substream); 345 346 dev_dbg(chip->card->dev, "->lx_pcm_hw_params\n"); 347 348 mutex_lock(&chip->setup_mutex); 349 350 if (is_capture) 351 chip->capture_stream.stream = substream; 352 else 353 chip->playback_stream.stream = substream; 354 355 mutex_unlock(&chip->setup_mutex); 356 return 0; 357 } 358 359 static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream, 360 struct snd_pcm_hw_params *hw_params) 361 { 362 return lx_pcm_hw_params(substream, hw_params, 0); 363 } 364 365 static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream, 366 struct snd_pcm_hw_params *hw_params) 367 { 368 return lx_pcm_hw_params(substream, hw_params, 1); 369 } 370 371 static int lx_pcm_hw_free(struct snd_pcm_substream *substream) 372 { 373 struct lx6464es *chip = snd_pcm_substream_chip(substream); 374 int err = 0; 375 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 376 377 dev_dbg(chip->card->dev, "->lx_pcm_hw_free\n"); 378 mutex_lock(&chip->setup_mutex); 379 380 if (chip->hardware_running[is_capture]) { 381 err = lx_hardware_stop(chip, substream); 382 if (err < 0) { 383 dev_err(chip->card->dev, "failed to stop hardware. " 384 "Error code %d\n", err); 385 goto exit; 386 } 387 388 err = lx_hardware_close(chip, substream); 389 if (err < 0) { 390 dev_err(chip->card->dev, "failed to close hardware. " 391 "Error code %d\n", err); 392 goto exit; 393 } 394 395 chip->hardware_running[is_capture] = 0; 396 } 397 398 if (is_capture) 399 chip->capture_stream.stream = NULL; 400 else 401 chip->playback_stream.stream = NULL; 402 403 exit: 404 mutex_unlock(&chip->setup_mutex); 405 return err; 406 } 407 408 static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream) 409 { 410 struct snd_pcm_substream *substream = lx_stream->stream; 411 const unsigned int is_capture = lx_stream->is_capture; 412 413 int err; 414 415 const u32 channels = substream->runtime->channels; 416 const u32 bytes_per_frame = channels * 3; 417 const u32 period_size = substream->runtime->period_size; 418 const u32 periods = substream->runtime->periods; 419 const u32 period_bytes = period_size * bytes_per_frame; 420 421 dma_addr_t buf = substream->dma_buffer.addr; 422 int i; 423 424 u32 needed, freed; 425 u32 size_array[5]; 426 427 for (i = 0; i != periods; ++i) { 428 u32 buffer_index = 0; 429 430 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, 431 size_array); 432 dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", 433 needed, freed); 434 435 err = lx_buffer_give(chip, 0, is_capture, period_bytes, 436 lower_32_bits(buf), upper_32_bits(buf), 437 &buffer_index); 438 439 dev_dbg(chip->card->dev, "starting: buffer index %x on 0x%lx (%d bytes)\n", 440 buffer_index, (unsigned long)buf, period_bytes); 441 buf += period_bytes; 442 } 443 444 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array); 445 dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", needed, freed); 446 447 dev_dbg(chip->card->dev, "starting: starting stream\n"); 448 err = lx_stream_start(chip, 0, is_capture); 449 if (err < 0) 450 dev_err(chip->card->dev, "couldn't start stream\n"); 451 else 452 lx_stream->status = LX_STREAM_STATUS_RUNNING; 453 454 lx_stream->frame_pos = 0; 455 } 456 457 static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream) 458 { 459 const unsigned int is_capture = lx_stream->is_capture; 460 int err; 461 462 dev_dbg(chip->card->dev, "stopping: stopping stream\n"); 463 err = lx_stream_stop(chip, 0, is_capture); 464 if (err < 0) 465 dev_err(chip->card->dev, "couldn't stop stream\n"); 466 else 467 lx_stream->status = LX_STREAM_STATUS_FREE; 468 469 } 470 471 static void lx_trigger_dispatch_stream(struct lx6464es *chip, 472 struct lx_stream *lx_stream) 473 { 474 switch (lx_stream->status) { 475 case LX_STREAM_STATUS_SCHEDULE_RUN: 476 lx_trigger_start(chip, lx_stream); 477 break; 478 479 case LX_STREAM_STATUS_SCHEDULE_STOP: 480 lx_trigger_stop(chip, lx_stream); 481 break; 482 483 default: 484 break; 485 } 486 } 487 488 static int lx_pcm_trigger_dispatch(struct lx6464es *chip, 489 struct lx_stream *lx_stream, int cmd) 490 { 491 int err = 0; 492 493 mutex_lock(&chip->lock); 494 switch (cmd) { 495 case SNDRV_PCM_TRIGGER_START: 496 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN; 497 break; 498 499 case SNDRV_PCM_TRIGGER_STOP: 500 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP; 501 break; 502 503 default: 504 err = -EINVAL; 505 goto exit; 506 } 507 508 lx_trigger_dispatch_stream(chip, &chip->capture_stream); 509 lx_trigger_dispatch_stream(chip, &chip->playback_stream); 510 511 exit: 512 mutex_unlock(&chip->lock); 513 return err; 514 } 515 516 517 static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 518 { 519 struct lx6464es *chip = snd_pcm_substream_chip(substream); 520 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 521 struct lx_stream *stream = is_capture ? &chip->capture_stream : 522 &chip->playback_stream; 523 524 dev_dbg(chip->card->dev, "->lx_pcm_trigger\n"); 525 526 return lx_pcm_trigger_dispatch(chip, stream, cmd); 527 } 528 529 static int snd_lx6464es_free(struct lx6464es *chip) 530 { 531 dev_dbg(chip->card->dev, "->snd_lx6464es_free\n"); 532 533 lx_irq_disable(chip); 534 535 if (chip->irq >= 0) 536 free_irq(chip->irq, chip); 537 538 iounmap(chip->port_dsp_bar); 539 ioport_unmap(chip->port_plx_remapped); 540 541 pci_release_regions(chip->pci); 542 pci_disable_device(chip->pci); 543 544 kfree(chip); 545 546 return 0; 547 } 548 549 static int snd_lx6464es_dev_free(struct snd_device *device) 550 { 551 return snd_lx6464es_free(device->device_data); 552 } 553 554 /* reset the dsp during initialization */ 555 static int lx_init_xilinx_reset(struct lx6464es *chip) 556 { 557 int i; 558 u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC); 559 560 dev_dbg(chip->card->dev, "->lx_init_xilinx_reset\n"); 561 562 /* activate reset of xilinx */ 563 plx_reg &= ~CHIPSC_RESET_XILINX; 564 565 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); 566 msleep(1); 567 568 lx_plx_reg_write(chip, ePLX_MBOX3, 0); 569 msleep(1); 570 571 plx_reg |= CHIPSC_RESET_XILINX; 572 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); 573 574 /* deactivate reset of xilinx */ 575 for (i = 0; i != 100; ++i) { 576 u32 reg_mbox3; 577 msleep(10); 578 reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3); 579 if (reg_mbox3) { 580 dev_dbg(chip->card->dev, "xilinx reset done\n"); 581 dev_dbg(chip->card->dev, "xilinx took %d loops\n", i); 582 break; 583 } 584 } 585 586 /* todo: add some error handling? */ 587 588 /* clear mr */ 589 lx_dsp_reg_write(chip, eReg_CSM, 0); 590 591 /* le xilinx ES peut ne pas etre encore pret, on attend. */ 592 msleep(600); 593 594 return 0; 595 } 596 597 static int lx_init_xilinx_test(struct lx6464es *chip) 598 { 599 u32 reg; 600 601 dev_dbg(chip->card->dev, "->lx_init_xilinx_test\n"); 602 603 /* TEST if we have access to Xilinx/MicroBlaze */ 604 lx_dsp_reg_write(chip, eReg_CSM, 0); 605 606 reg = lx_dsp_reg_read(chip, eReg_CSM); 607 608 if (reg) { 609 dev_err(chip->card->dev, "Problem: Reg_CSM %x.\n", reg); 610 611 /* PCI9056_SPACE0_REMAP */ 612 lx_plx_reg_write(chip, ePLX_PCICR, 1); 613 614 reg = lx_dsp_reg_read(chip, eReg_CSM); 615 if (reg) { 616 dev_err(chip->card->dev, "Error: Reg_CSM %x.\n", reg); 617 return -EAGAIN; /* seems to be appropriate */ 618 } 619 } 620 621 dev_dbg(chip->card->dev, "Xilinx/MicroBlaze access test successful\n"); 622 623 return 0; 624 } 625 626 /* initialize ethersound */ 627 static int lx_init_ethersound_config(struct lx6464es *chip) 628 { 629 int i; 630 u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES); 631 632 /* configure 64 io channels */ 633 u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) | 634 (64 << IOCR_INPUTS_OFFSET) | 635 (64 << IOCR_OUTPUTS_OFFSET) | 636 (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET); 637 638 dev_dbg(chip->card->dev, "->lx_init_ethersound\n"); 639 640 chip->freq_ratio = FREQ_RATIO_SINGLE_MODE; 641 642 /* 643 * write it to the card ! 644 * this actually kicks the ES xilinx, the first time since poweron. 645 * the MAC address in the Reg_ADMACESMSB Reg_ADMACESLSB registers 646 * is not ready before this is done, and the bit 2 in Reg_CSES is set. 647 * */ 648 lx_dsp_reg_write(chip, eReg_CONFES, conf_es); 649 650 for (i = 0; i != 1000; ++i) { 651 if (lx_dsp_reg_read(chip, eReg_CSES) & 4) { 652 dev_dbg(chip->card->dev, "ethersound initialized after %dms\n", 653 i); 654 goto ethersound_initialized; 655 } 656 msleep(1); 657 } 658 dev_warn(chip->card->dev, 659 "ethersound could not be initialized after %dms\n", i); 660 return -ETIMEDOUT; 661 662 ethersound_initialized: 663 dev_dbg(chip->card->dev, "ethersound initialized\n"); 664 return 0; 665 } 666 667 static int lx_init_get_version_features(struct lx6464es *chip) 668 { 669 u32 dsp_version; 670 671 int err; 672 673 dev_dbg(chip->card->dev, "->lx_init_get_version_features\n"); 674 675 err = lx_dsp_get_version(chip, &dsp_version); 676 677 if (err == 0) { 678 u32 freq; 679 680 dev_info(chip->card->dev, "DSP version: V%02d.%02d #%d\n", 681 (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff, 682 dsp_version & 0xff); 683 684 /* later: what firmware version do we expect? */ 685 686 /* retrieve Play/Rec features */ 687 /* done here because we may have to handle alternate 688 * DSP files. */ 689 /* later */ 690 691 /* init the EtherSound sample rate */ 692 err = lx_dsp_get_clock_frequency(chip, &freq); 693 if (err == 0) 694 chip->board_sample_rate = freq; 695 dev_dbg(chip->card->dev, "actual clock frequency %d\n", freq); 696 } else { 697 dev_err(chip->card->dev, "DSP corrupted \n"); 698 err = -EAGAIN; 699 } 700 701 return err; 702 } 703 704 static int lx_set_granularity(struct lx6464es *chip, u32 gran) 705 { 706 int err = 0; 707 u32 snapped_gran = MICROBLAZE_IBL_MIN; 708 709 dev_dbg(chip->card->dev, "->lx_set_granularity\n"); 710 711 /* blocksize is a power of 2 */ 712 while ((snapped_gran < gran) && 713 (snapped_gran < MICROBLAZE_IBL_MAX)) { 714 snapped_gran *= 2; 715 } 716 717 if (snapped_gran == chip->pcm_granularity) 718 return 0; 719 720 err = lx_dsp_set_granularity(chip, snapped_gran); 721 if (err < 0) { 722 dev_warn(chip->card->dev, "could not set granularity\n"); 723 err = -EAGAIN; 724 } 725 726 if (snapped_gran != gran) 727 dev_err(chip->card->dev, "snapped blocksize to %d\n", snapped_gran); 728 729 dev_dbg(chip->card->dev, "set blocksize on board %d\n", snapped_gran); 730 chip->pcm_granularity = snapped_gran; 731 732 return err; 733 } 734 735 /* initialize and test the xilinx dsp chip */ 736 static int lx_init_dsp(struct lx6464es *chip) 737 { 738 int err; 739 int i; 740 741 dev_dbg(chip->card->dev, "->lx_init_dsp\n"); 742 743 dev_dbg(chip->card->dev, "initialize board\n"); 744 err = lx_init_xilinx_reset(chip); 745 if (err) 746 return err; 747 748 dev_dbg(chip->card->dev, "testing board\n"); 749 err = lx_init_xilinx_test(chip); 750 if (err) 751 return err; 752 753 dev_dbg(chip->card->dev, "initialize ethersound configuration\n"); 754 err = lx_init_ethersound_config(chip); 755 if (err) 756 return err; 757 758 lx_irq_enable(chip); 759 760 /** \todo the mac address should be ready by not, but it isn't, 761 * so we wait for it */ 762 for (i = 0; i != 1000; ++i) { 763 err = lx_dsp_get_mac(chip); 764 if (err) 765 return err; 766 if (chip->mac_address[0] || chip->mac_address[1] || chip->mac_address[2] || 767 chip->mac_address[3] || chip->mac_address[4] || chip->mac_address[5]) 768 goto mac_ready; 769 msleep(1); 770 } 771 return -ETIMEDOUT; 772 773 mac_ready: 774 dev_dbg(chip->card->dev, "mac address ready read after: %dms\n", i); 775 dev_info(chip->card->dev, 776 "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n", 777 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], 778 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 779 780 err = lx_init_get_version_features(chip); 781 if (err) 782 return err; 783 784 lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT); 785 786 chip->playback_mute = 0; 787 788 return err; 789 } 790 791 static const struct snd_pcm_ops lx_ops_playback = { 792 .open = lx_pcm_open, 793 .close = lx_pcm_close, 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 .prepare = lx_pcm_prepare, 805 .hw_params = lx_pcm_hw_params_capture, 806 .hw_free = lx_pcm_hw_free, 807 .trigger = lx_pcm_trigger, 808 .pointer = lx_pcm_stream_pointer, 809 }; 810 811 static int lx_pcm_create(struct lx6464es *chip) 812 { 813 int err; 814 struct snd_pcm *pcm; 815 816 u32 size = 64 * /* channels */ 817 3 * /* 24 bit samples */ 818 MAX_STREAM_BUFFER * /* periods */ 819 MICROBLAZE_IBL_MAX * /* frames per period */ 820 2; /* duplex */ 821 822 size = PAGE_ALIGN(size); 823 824 /* hardcoded device name & channel count */ 825 err = snd_pcm_new(chip->card, (char *)card_name, 0, 826 1, 1, &pcm); 827 if (err < 0) 828 return err; 829 830 pcm->private_data = chip; 831 832 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback); 833 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture); 834 835 pcm->info_flags = 0; 836 pcm->nonatomic = true; 837 strcpy(pcm->name, card_name); 838 839 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, 840 &chip->pci->dev, size, size); 841 842 chip->pcm = pcm; 843 chip->capture_stream.is_capture = 1; 844 845 return 0; 846 } 847 848 static int lx_control_playback_info(struct snd_kcontrol *kcontrol, 849 struct snd_ctl_elem_info *uinfo) 850 { 851 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 852 uinfo->count = 1; 853 uinfo->value.integer.min = 0; 854 uinfo->value.integer.max = 1; 855 return 0; 856 } 857 858 static int lx_control_playback_get(struct snd_kcontrol *kcontrol, 859 struct snd_ctl_elem_value *ucontrol) 860 { 861 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 862 ucontrol->value.integer.value[0] = chip->playback_mute; 863 return 0; 864 } 865 866 static int lx_control_playback_put(struct snd_kcontrol *kcontrol, 867 struct snd_ctl_elem_value *ucontrol) 868 { 869 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 870 int changed = 0; 871 int current_value = chip->playback_mute; 872 873 if (current_value != ucontrol->value.integer.value[0]) { 874 lx_level_unmute(chip, 0, !current_value); 875 chip->playback_mute = !current_value; 876 changed = 1; 877 } 878 return changed; 879 } 880 881 static const struct snd_kcontrol_new lx_control_playback_switch = { 882 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 883 .name = "PCM Playback Switch", 884 .index = 0, 885 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 886 .private_value = 0, 887 .info = lx_control_playback_info, 888 .get = lx_control_playback_get, 889 .put = lx_control_playback_put 890 }; 891 892 893 894 static void lx_proc_levels_read(struct snd_info_entry *entry, 895 struct snd_info_buffer *buffer) 896 { 897 u32 levels[64]; 898 int err; 899 int i, j; 900 struct lx6464es *chip = entry->private_data; 901 902 snd_iprintf(buffer, "capture levels:\n"); 903 err = lx_level_peaks(chip, 1, 64, levels); 904 if (err < 0) 905 return; 906 907 for (i = 0; i != 8; ++i) { 908 for (j = 0; j != 8; ++j) 909 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 910 snd_iprintf(buffer, "\n"); 911 } 912 913 snd_iprintf(buffer, "\nplayback levels:\n"); 914 915 err = lx_level_peaks(chip, 0, 64, levels); 916 if (err < 0) 917 return; 918 919 for (i = 0; i != 8; ++i) { 920 for (j = 0; j != 8; ++j) 921 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 922 snd_iprintf(buffer, "\n"); 923 } 924 925 snd_iprintf(buffer, "\n"); 926 } 927 928 static int lx_proc_create(struct snd_card *card, struct lx6464es *chip) 929 { 930 return snd_card_ro_proc_new(card, "levels", chip, lx_proc_levels_read); 931 } 932 933 934 static int snd_lx6464es_create(struct snd_card *card, 935 struct pci_dev *pci, 936 struct lx6464es **rchip) 937 { 938 struct lx6464es *chip; 939 int err; 940 941 static const struct snd_device_ops ops = { 942 .dev_free = snd_lx6464es_dev_free, 943 }; 944 945 dev_dbg(card->dev, "->snd_lx6464es_create\n"); 946 947 *rchip = NULL; 948 949 /* enable PCI device */ 950 err = pci_enable_device(pci); 951 if (err < 0) 952 return err; 953 954 pci_set_master(pci); 955 956 /* check if we can restrict PCI DMA transfers to 32 bits */ 957 err = dma_set_mask(&pci->dev, DMA_BIT_MASK(32)); 958 if (err < 0) { 959 dev_err(card->dev, 960 "architecture does not support 32bit PCI busmaster DMA\n"); 961 pci_disable_device(pci); 962 return -ENXIO; 963 } 964 965 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 966 if (chip == NULL) { 967 err = -ENOMEM; 968 goto alloc_failed; 969 } 970 971 chip->card = card; 972 chip->pci = pci; 973 chip->irq = -1; 974 975 /* initialize synchronization structs */ 976 mutex_init(&chip->lock); 977 mutex_init(&chip->msg_lock); 978 mutex_init(&chip->setup_mutex); 979 980 /* request resources */ 981 err = pci_request_regions(pci, card_name); 982 if (err < 0) 983 goto request_regions_failed; 984 985 /* plx port */ 986 chip->port_plx = pci_resource_start(pci, 1); 987 chip->port_plx_remapped = ioport_map(chip->port_plx, 988 pci_resource_len(pci, 1)); 989 990 /* dsp port */ 991 chip->port_dsp_bar = pci_ioremap_bar(pci, 2); 992 if (!chip->port_dsp_bar) { 993 dev_err(card->dev, "cannot remap PCI memory region\n"); 994 err = -ENOMEM; 995 goto remap_pci_failed; 996 } 997 998 err = request_threaded_irq(pci->irq, lx_interrupt, lx_threaded_irq, 999 IRQF_SHARED, KBUILD_MODNAME, chip); 1000 if (err) { 1001 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 1002 goto request_irq_failed; 1003 } 1004 chip->irq = pci->irq; 1005 card->sync_irq = chip->irq; 1006 1007 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 1008 if (err < 0) 1009 goto device_new_failed; 1010 1011 err = lx_init_dsp(chip); 1012 if (err < 0) { 1013 dev_err(card->dev, "error during DSP initialization\n"); 1014 return err; 1015 } 1016 1017 err = lx_pcm_create(chip); 1018 if (err < 0) 1019 return err; 1020 1021 err = lx_proc_create(card, chip); 1022 if (err < 0) 1023 return err; 1024 1025 err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch, 1026 chip)); 1027 if (err < 0) 1028 return err; 1029 1030 *rchip = chip; 1031 return 0; 1032 1033 device_new_failed: 1034 free_irq(pci->irq, chip); 1035 1036 request_irq_failed: 1037 iounmap(chip->port_dsp_bar); 1038 1039 remap_pci_failed: 1040 pci_release_regions(pci); 1041 1042 request_regions_failed: 1043 kfree(chip); 1044 1045 alloc_failed: 1046 pci_disable_device(pci); 1047 1048 return err; 1049 } 1050 1051 static int snd_lx6464es_probe(struct pci_dev *pci, 1052 const struct pci_device_id *pci_id) 1053 { 1054 static int dev; 1055 struct snd_card *card; 1056 struct lx6464es *chip; 1057 int err; 1058 1059 dev_dbg(&pci->dev, "->snd_lx6464es_probe\n"); 1060 1061 if (dev >= SNDRV_CARDS) 1062 return -ENODEV; 1063 if (!enable[dev]) { 1064 dev++; 1065 return -ENOENT; 1066 } 1067 1068 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 1069 0, &card); 1070 if (err < 0) 1071 return err; 1072 1073 err = snd_lx6464es_create(card, pci, &chip); 1074 if (err < 0) { 1075 dev_err(card->dev, "error during snd_lx6464es_create\n"); 1076 goto out_free; 1077 } 1078 1079 strcpy(card->driver, "LX6464ES"); 1080 sprintf(card->id, "LX6464ES_%02X%02X%02X", 1081 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 1082 1083 sprintf(card->shortname, "LX6464ES %02X.%02X.%02X.%02X.%02X.%02X", 1084 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], 1085 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 1086 1087 sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i", 1088 card->shortname, chip->port_plx, 1089 chip->port_dsp_bar, chip->irq); 1090 1091 err = snd_card_register(card); 1092 if (err < 0) 1093 goto out_free; 1094 1095 dev_dbg(chip->card->dev, "initialization successful\n"); 1096 pci_set_drvdata(pci, card); 1097 dev++; 1098 return 0; 1099 1100 out_free: 1101 snd_card_free(card); 1102 return err; 1103 1104 } 1105 1106 static void snd_lx6464es_remove(struct pci_dev *pci) 1107 { 1108 snd_card_free(pci_get_drvdata(pci)); 1109 } 1110 1111 1112 static struct pci_driver lx6464es_driver = { 1113 .name = KBUILD_MODNAME, 1114 .id_table = snd_lx6464es_ids, 1115 .probe = snd_lx6464es_probe, 1116 .remove = snd_lx6464es_remove, 1117 }; 1118 1119 module_pci_driver(lx6464es_driver); 1120