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 21MODULE_AUTHOR("Tim Blechmann"); 22MODULE_LICENSE("GPL"); 23MODULE_DESCRIPTION("digigram lx6464es"); 24 25static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 26static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 27static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 28 29module_param_array(index, int, NULL, 0444); 30MODULE_PARM_DESC(index, "Index value for Digigram LX6464ES interface."); 31module_param_array(id, charp, NULL, 0444); 32MODULE_PARM_DESC(id, "ID string for Digigram LX6464ES interface."); 33module_param_array(enable, bool, NULL, 0444); 34MODULE_PARM_DESC(enable, "Enable/disable specific Digigram LX6464ES soundcards."); 35 36static const char card_name[] = "LX6464ES"; 37 38 39#define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056 40 41static const struct pci_device_id snd_lx6464es_ids[] = { 42 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, 43 PCI_VENDOR_ID_DIGIGRAM, 44 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM), 45 }, /* LX6464ES */ 46 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, 47 PCI_VENDOR_ID_DIGIGRAM, 48 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM), 49 }, /* LX6464ES-CAE */ 50 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, 51 PCI_VENDOR_ID_DIGIGRAM, 52 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_SERIAL_SUBSYSTEM), 53 }, /* LX6464ESe */ 54 { PCI_DEVICE_SUB(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES, 55 PCI_VENDOR_ID_DIGIGRAM, 56 PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ESE_CAE_SERIAL_SUBSYSTEM), 57 }, /* LX6464ESe-CAE */ 58 { 0, }, 59}; 60 61MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids); 62 63 64 65/* PGO pour USERo dans le registre pci_0x06/loc_0xEC */ 66#define CHIPSC_RESET_XILINX (1L<<16) 67 68 69/* alsa callbacks */ 70static const struct snd_pcm_hardware lx_caps = { 71 .info = (SNDRV_PCM_INFO_MMAP | 72 SNDRV_PCM_INFO_INTERLEAVED | 73 SNDRV_PCM_INFO_MMAP_VALID | 74 SNDRV_PCM_INFO_SYNC_START), 75 .formats = (SNDRV_PCM_FMTBIT_S16_LE | 76 SNDRV_PCM_FMTBIT_S16_BE | 77 SNDRV_PCM_FMTBIT_S24_3LE | 78 SNDRV_PCM_FMTBIT_S24_3BE), 79 .rates = (SNDRV_PCM_RATE_CONTINUOUS | 80 SNDRV_PCM_RATE_8000_192000), 81 .rate_min = 8000, 82 .rate_max = 192000, 83 .channels_min = 2, 84 .channels_max = 64, 85 .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER, 86 .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2), 87 .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER), 88 .periods_min = 2, 89 .periods_max = MAX_STREAM_BUFFER, 90}; 91 92static int lx_set_granularity(struct lx6464es *chip, u32 gran); 93 94 95static int lx_hardware_open(struct lx6464es *chip, 96 struct snd_pcm_substream *substream) 97{ 98 int err = 0; 99 struct snd_pcm_runtime *runtime = substream->runtime; 100 int channels = runtime->channels; 101 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 102 103 snd_pcm_uframes_t period_size = runtime->period_size; 104 105 dev_dbg(chip->card->dev, "allocating pipe for %d channels\n", channels); 106 err = lx_pipe_allocate(chip, 0, is_capture, channels); 107 if (err < 0) { 108 dev_err(chip->card->dev, LXP "allocating pipe failed\n"); 109 return err; 110 } 111 112 err = lx_set_granularity(chip, period_size); 113 if (err < 0) { 114 dev_err(chip->card->dev, "setting granularity to %ld failed\n", 115 period_size); 116 return err; 117 } 118 119 return 0; 120} 121 122static int lx_hardware_start(struct lx6464es *chip, 123 struct snd_pcm_substream *substream) 124{ 125 int err = 0; 126 struct snd_pcm_runtime *runtime = substream->runtime; 127 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 128 129 dev_dbg(chip->card->dev, "setting stream format\n"); 130 err = lx_stream_set_format(chip, runtime, 0, is_capture); 131 if (err < 0) { 132 dev_err(chip->card->dev, "setting stream format failed\n"); 133 return err; 134 } 135 136 dev_dbg(chip->card->dev, "starting pipe\n"); 137 err = lx_pipe_start(chip, 0, is_capture); 138 if (err < 0) { 139 dev_err(chip->card->dev, "starting pipe failed\n"); 140 return err; 141 } 142 143 dev_dbg(chip->card->dev, "waiting for pipe to start\n"); 144 err = lx_pipe_wait_for_start(chip, 0, is_capture); 145 if (err < 0) { 146 dev_err(chip->card->dev, "waiting for pipe failed\n"); 147 return err; 148 } 149 150 return err; 151} 152 153 154static int lx_hardware_stop(struct lx6464es *chip, 155 struct snd_pcm_substream *substream) 156{ 157 int err = 0; 158 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 159 160 dev_dbg(chip->card->dev, "pausing pipe\n"); 161 err = lx_pipe_pause(chip, 0, is_capture); 162 if (err < 0) { 163 dev_err(chip->card->dev, "pausing pipe failed\n"); 164 return err; 165 } 166 167 dev_dbg(chip->card->dev, "waiting for pipe to become idle\n"); 168 err = lx_pipe_wait_for_idle(chip, 0, is_capture); 169 if (err < 0) { 170 dev_err(chip->card->dev, "waiting for pipe failed\n"); 171 return err; 172 } 173 174 dev_dbg(chip->card->dev, "stopping pipe\n"); 175 err = lx_pipe_stop(chip, 0, is_capture); 176 if (err < 0) { 177 dev_err(chip->card->dev, "stopping pipe failed\n"); 178 return err; 179 } 180 181 return err; 182} 183 184 185static int lx_hardware_close(struct lx6464es *chip, 186 struct snd_pcm_substream *substream) 187{ 188 int err = 0; 189 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 190 191 dev_dbg(chip->card->dev, "releasing pipe\n"); 192 err = lx_pipe_release(chip, 0, is_capture); 193 if (err < 0) { 194 dev_err(chip->card->dev, "releasing pipe failed\n"); 195 return err; 196 } 197 198 return err; 199} 200 201 202static int lx_pcm_open(struct snd_pcm_substream *substream) 203{ 204 struct lx6464es *chip = snd_pcm_substream_chip(substream); 205 struct snd_pcm_runtime *runtime = substream->runtime; 206 int err = 0; 207 int board_rate; 208 209 dev_dbg(chip->card->dev, "->lx_pcm_open\n"); 210 mutex_lock(&chip->setup_mutex); 211 212 /* copy the struct snd_pcm_hardware struct */ 213 runtime->hw = lx_caps; 214 215#if 0 216 /* buffer-size should better be multiple of period-size */ 217 err = snd_pcm_hw_constraint_integer(runtime, 218 SNDRV_PCM_HW_PARAM_PERIODS); 219 if (err < 0) { 220 dev_warn(chip->card->dev, "could not constrain periods\n"); 221 goto exit; 222 } 223#endif 224 225 /* the clock rate cannot be changed */ 226 board_rate = chip->board_sample_rate; 227 err = snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_RATE, 228 board_rate); 229 230 if (err < 0) { 231 dev_warn(chip->card->dev, "could not constrain periods\n"); 232 goto exit; 233 } 234 235 /* constrain period size */ 236 err = snd_pcm_hw_constraint_minmax(runtime, 237 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 238 MICROBLAZE_IBL_MIN, 239 MICROBLAZE_IBL_MAX); 240 if (err < 0) { 241 dev_warn(chip->card->dev, 242 "could not constrain period size\n"); 243 goto exit; 244 } 245 246 snd_pcm_hw_constraint_step(runtime, 0, 247 SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); 248 249 snd_pcm_set_sync(substream); 250 err = 0; 251 252exit: 253 runtime->private_data = chip; 254 255 mutex_unlock(&chip->setup_mutex); 256 dev_dbg(chip->card->dev, "<-lx_pcm_open, %d\n", err); 257 return err; 258} 259 260static int lx_pcm_close(struct snd_pcm_substream *substream) 261{ 262 dev_dbg(substream->pcm->card->dev, "->lx_pcm_close\n"); 263 return 0; 264} 265 266static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream 267 *substream) 268{ 269 struct lx6464es *chip = snd_pcm_substream_chip(substream); 270 snd_pcm_uframes_t pos; 271 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 272 273 struct lx_stream *lx_stream = is_capture ? &chip->capture_stream : 274 &chip->playback_stream; 275 276 dev_dbg(chip->card->dev, "->lx_pcm_stream_pointer\n"); 277 278 mutex_lock(&chip->lock); 279 pos = lx_stream->frame_pos * substream->runtime->period_size; 280 mutex_unlock(&chip->lock); 281 282 dev_dbg(chip->card->dev, "stream_pointer at %ld\n", pos); 283 return pos; 284} 285 286static int lx_pcm_prepare(struct snd_pcm_substream *substream) 287{ 288 struct lx6464es *chip = snd_pcm_substream_chip(substream); 289 int err = 0; 290 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 291 292 dev_dbg(chip->card->dev, "->lx_pcm_prepare\n"); 293 294 mutex_lock(&chip->setup_mutex); 295 296 if (chip->hardware_running[is_capture]) { 297 err = lx_hardware_stop(chip, substream); 298 if (err < 0) { 299 dev_err(chip->card->dev, "failed to stop hardware. " 300 "Error code %d\n", err); 301 goto exit; 302 } 303 304 err = lx_hardware_close(chip, substream); 305 if (err < 0) { 306 dev_err(chip->card->dev, "failed to close hardware. " 307 "Error code %d\n", err); 308 goto exit; 309 } 310 } 311 312 dev_dbg(chip->card->dev, "opening hardware\n"); 313 err = lx_hardware_open(chip, substream); 314 if (err < 0) { 315 dev_err(chip->card->dev, "failed to open hardware. " 316 "Error code %d\n", err); 317 goto exit; 318 } 319 320 err = lx_hardware_start(chip, substream); 321 if (err < 0) { 322 dev_err(chip->card->dev, "failed to start hardware. " 323 "Error code %d\n", err); 324 goto exit; 325 } 326 327 chip->hardware_running[is_capture] = 1; 328 329 if (chip->board_sample_rate != substream->runtime->rate) { 330 if (!err) 331 chip->board_sample_rate = substream->runtime->rate; 332 } 333 334exit: 335 mutex_unlock(&chip->setup_mutex); 336 return err; 337} 338 339static int lx_pcm_hw_params(struct snd_pcm_substream *substream, 340 struct snd_pcm_hw_params *hw_params, int is_capture) 341{ 342 struct lx6464es *chip = snd_pcm_substream_chip(substream); 343 344 dev_dbg(chip->card->dev, "->lx_pcm_hw_params\n"); 345 346 mutex_lock(&chip->setup_mutex); 347 348 if (is_capture) 349 chip->capture_stream.stream = substream; 350 else 351 chip->playback_stream.stream = substream; 352 353 mutex_unlock(&chip->setup_mutex); 354 return 0; 355} 356 357static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream, 358 struct snd_pcm_hw_params *hw_params) 359{ 360 return lx_pcm_hw_params(substream, hw_params, 0); 361} 362 363static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream, 364 struct snd_pcm_hw_params *hw_params) 365{ 366 return lx_pcm_hw_params(substream, hw_params, 1); 367} 368 369static int lx_pcm_hw_free(struct snd_pcm_substream *substream) 370{ 371 struct lx6464es *chip = snd_pcm_substream_chip(substream); 372 int err = 0; 373 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 374 375 dev_dbg(chip->card->dev, "->lx_pcm_hw_free\n"); 376 mutex_lock(&chip->setup_mutex); 377 378 if (chip->hardware_running[is_capture]) { 379 err = lx_hardware_stop(chip, substream); 380 if (err < 0) { 381 dev_err(chip->card->dev, "failed to stop hardware. " 382 "Error code %d\n", err); 383 goto exit; 384 } 385 386 err = lx_hardware_close(chip, substream); 387 if (err < 0) { 388 dev_err(chip->card->dev, "failed to close hardware. " 389 "Error code %d\n", err); 390 goto exit; 391 } 392 393 chip->hardware_running[is_capture] = 0; 394 } 395 396 if (is_capture) 397 chip->capture_stream.stream = NULL; 398 else 399 chip->playback_stream.stream = NULL; 400 401exit: 402 mutex_unlock(&chip->setup_mutex); 403 return err; 404} 405 406static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream) 407{ 408 struct snd_pcm_substream *substream = lx_stream->stream; 409 const unsigned int is_capture = lx_stream->is_capture; 410 411 int err; 412 413 const u32 channels = substream->runtime->channels; 414 const u32 bytes_per_frame = channels * 3; 415 const u32 period_size = substream->runtime->period_size; 416 const u32 periods = substream->runtime->periods; 417 const u32 period_bytes = period_size * bytes_per_frame; 418 419 dma_addr_t buf = substream->dma_buffer.addr; 420 int i; 421 422 u32 needed, freed; 423 u32 size_array[5]; 424 425 for (i = 0; i != periods; ++i) { 426 u32 buffer_index = 0; 427 428 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, 429 size_array); 430 dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", 431 needed, freed); 432 433 err = lx_buffer_give(chip, 0, is_capture, period_bytes, 434 lower_32_bits(buf), upper_32_bits(buf), 435 &buffer_index); 436 437 dev_dbg(chip->card->dev, "starting: buffer index %x on 0x%lx (%d bytes)\n", 438 buffer_index, (unsigned long)buf, period_bytes); 439 buf += period_bytes; 440 } 441 442 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array); 443 dev_dbg(chip->card->dev, "starting: needed %d, freed %d\n", needed, freed); 444 445 dev_dbg(chip->card->dev, "starting: starting stream\n"); 446 err = lx_stream_start(chip, 0, is_capture); 447 if (err < 0) 448 dev_err(chip->card->dev, "couldn't start stream\n"); 449 else 450 lx_stream->status = LX_STREAM_STATUS_RUNNING; 451 452 lx_stream->frame_pos = 0; 453} 454 455static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream) 456{ 457 const unsigned int is_capture = lx_stream->is_capture; 458 int err; 459 460 dev_dbg(chip->card->dev, "stopping: stopping stream\n"); 461 err = lx_stream_stop(chip, 0, is_capture); 462 if (err < 0) 463 dev_err(chip->card->dev, "couldn't stop stream\n"); 464 else 465 lx_stream->status = LX_STREAM_STATUS_FREE; 466 467} 468 469static void lx_trigger_dispatch_stream(struct lx6464es *chip, 470 struct lx_stream *lx_stream) 471{ 472 switch (lx_stream->status) { 473 case LX_STREAM_STATUS_SCHEDULE_RUN: 474 lx_trigger_start(chip, lx_stream); 475 break; 476 477 case LX_STREAM_STATUS_SCHEDULE_STOP: 478 lx_trigger_stop(chip, lx_stream); 479 break; 480 481 default: 482 break; 483 } 484} 485 486static int lx_pcm_trigger_dispatch(struct lx6464es *chip, 487 struct lx_stream *lx_stream, int cmd) 488{ 489 int err = 0; 490 491 mutex_lock(&chip->lock); 492 switch (cmd) { 493 case SNDRV_PCM_TRIGGER_START: 494 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN; 495 break; 496 497 case SNDRV_PCM_TRIGGER_STOP: 498 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP; 499 break; 500 501 default: 502 err = -EINVAL; 503 goto exit; 504 } 505 506 lx_trigger_dispatch_stream(chip, &chip->capture_stream); 507 lx_trigger_dispatch_stream(chip, &chip->playback_stream); 508 509exit: 510 mutex_unlock(&chip->lock); 511 return err; 512} 513 514 515static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 516{ 517 struct lx6464es *chip = snd_pcm_substream_chip(substream); 518 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 519 struct lx_stream *stream = is_capture ? &chip->capture_stream : 520 &chip->playback_stream; 521 522 dev_dbg(chip->card->dev, "->lx_pcm_trigger\n"); 523 524 return lx_pcm_trigger_dispatch(chip, stream, cmd); 525} 526 527static void snd_lx6464es_free(struct snd_card *card) 528{ 529 struct lx6464es *chip = card->private_data; 530 531 lx_irq_disable(chip); 532} 533 534/* reset the dsp during initialization */ 535static int lx_init_xilinx_reset(struct lx6464es *chip) 536{ 537 int i; 538 u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC); 539 540 dev_dbg(chip->card->dev, "->lx_init_xilinx_reset\n"); 541 542 /* activate reset of xilinx */ 543 plx_reg &= ~CHIPSC_RESET_XILINX; 544 545 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); 546 msleep(1); 547 548 lx_plx_reg_write(chip, ePLX_MBOX3, 0); 549 msleep(1); 550 551 plx_reg |= CHIPSC_RESET_XILINX; 552 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); 553 554 /* deactivate reset of xilinx */ 555 for (i = 0; i != 100; ++i) { 556 u32 reg_mbox3; 557 msleep(10); 558 reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3); 559 if (reg_mbox3) { 560 dev_dbg(chip->card->dev, "xilinx reset done\n"); 561 dev_dbg(chip->card->dev, "xilinx took %d loops\n", i); 562 break; 563 } 564 } 565 566 /* todo: add some error handling? */ 567 568 /* clear mr */ 569 lx_dsp_reg_write(chip, eReg_CSM, 0); 570 571 /* le xilinx ES peut ne pas etre encore pret, on attend. */ 572 msleep(600); 573 574 return 0; 575} 576 577static int lx_init_xilinx_test(struct lx6464es *chip) 578{ 579 u32 reg; 580 581 dev_dbg(chip->card->dev, "->lx_init_xilinx_test\n"); 582 583 /* TEST if we have access to Xilinx/MicroBlaze */ 584 lx_dsp_reg_write(chip, eReg_CSM, 0); 585 586 reg = lx_dsp_reg_read(chip, eReg_CSM); 587 588 if (reg) { 589 dev_err(chip->card->dev, "Problem: Reg_CSM %x.\n", reg); 590 591 /* PCI9056_SPACE0_REMAP */ 592 lx_plx_reg_write(chip, ePLX_PCICR, 1); 593 594 reg = lx_dsp_reg_read(chip, eReg_CSM); 595 if (reg) { 596 dev_err(chip->card->dev, "Error: Reg_CSM %x.\n", reg); 597 return -EAGAIN; /* seems to be appropriate */ 598 } 599 } 600 601 dev_dbg(chip->card->dev, "Xilinx/MicroBlaze access test successful\n"); 602 603 return 0; 604} 605 606/* initialize ethersound */ 607static int lx_init_ethersound_config(struct lx6464es *chip) 608{ 609 int i; 610 u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES); 611 612 /* configure 64 io channels */ 613 u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) | 614 (64 << IOCR_INPUTS_OFFSET) | 615 (64 << IOCR_OUTPUTS_OFFSET) | 616 (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET); 617 618 dev_dbg(chip->card->dev, "->lx_init_ethersound\n"); 619 620 chip->freq_ratio = FREQ_RATIO_SINGLE_MODE; 621 622 /* 623 * write it to the card ! 624 * this actually kicks the ES xilinx, the first time since poweron. 625 * the MAC address in the Reg_ADMACESMSB Reg_ADMACESLSB registers 626 * is not ready before this is done, and the bit 2 in Reg_CSES is set. 627 * */ 628 lx_dsp_reg_write(chip, eReg_CONFES, conf_es); 629 630 for (i = 0; i != 1000; ++i) { 631 if (lx_dsp_reg_read(chip, eReg_CSES) & 4) { 632 dev_dbg(chip->card->dev, "ethersound initialized after %dms\n", 633 i); 634 goto ethersound_initialized; 635 } 636 msleep(1); 637 } 638 dev_warn(chip->card->dev, 639 "ethersound could not be initialized after %dms\n", i); 640 return -ETIMEDOUT; 641 642 ethersound_initialized: 643 dev_dbg(chip->card->dev, "ethersound initialized\n"); 644 return 0; 645} 646 647static int lx_init_get_version_features(struct lx6464es *chip) 648{ 649 u32 dsp_version; 650 651 int err; 652 653 dev_dbg(chip->card->dev, "->lx_init_get_version_features\n"); 654 655 err = lx_dsp_get_version(chip, &dsp_version); 656 657 if (err == 0) { 658 u32 freq; 659 660 dev_info(chip->card->dev, "DSP version: V%02d.%02d #%d\n", 661 (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff, 662 dsp_version & 0xff); 663 664 /* later: what firmware version do we expect? */ 665 666 /* retrieve Play/Rec features */ 667 /* done here because we may have to handle alternate 668 * DSP files. */ 669 /* later */ 670 671 /* init the EtherSound sample rate */ 672 err = lx_dsp_get_clock_frequency(chip, &freq); 673 if (err == 0) 674 chip->board_sample_rate = freq; 675 dev_dbg(chip->card->dev, "actual clock frequency %d\n", freq); 676 } else { 677 dev_err(chip->card->dev, "DSP corrupted \n"); 678 err = -EAGAIN; 679 } 680 681 return err; 682} 683 684static int lx_set_granularity(struct lx6464es *chip, u32 gran) 685{ 686 int err = 0; 687 u32 snapped_gran = MICROBLAZE_IBL_MIN; 688 689 dev_dbg(chip->card->dev, "->lx_set_granularity\n"); 690 691 /* blocksize is a power of 2 */ 692 while ((snapped_gran < gran) && 693 (snapped_gran < MICROBLAZE_IBL_MAX)) { 694 snapped_gran *= 2; 695 } 696 697 if (snapped_gran == chip->pcm_granularity) 698 return 0; 699 700 err = lx_dsp_set_granularity(chip, snapped_gran); 701 if (err < 0) { 702 dev_warn(chip->card->dev, "could not set granularity\n"); 703 err = -EAGAIN; 704 } 705 706 if (snapped_gran != gran) 707 dev_err(chip->card->dev, "snapped blocksize to %d\n", snapped_gran); 708 709 dev_dbg(chip->card->dev, "set blocksize on board %d\n", snapped_gran); 710 chip->pcm_granularity = snapped_gran; 711 712 return err; 713} 714 715/* initialize and test the xilinx dsp chip */ 716static int lx_init_dsp(struct lx6464es *chip) 717{ 718 int err; 719 int i; 720 721 dev_dbg(chip->card->dev, "->lx_init_dsp\n"); 722 723 dev_dbg(chip->card->dev, "initialize board\n"); 724 err = lx_init_xilinx_reset(chip); 725 if (err) 726 return err; 727 728 dev_dbg(chip->card->dev, "testing board\n"); 729 err = lx_init_xilinx_test(chip); 730 if (err) 731 return err; 732 733 dev_dbg(chip->card->dev, "initialize ethersound configuration\n"); 734 err = lx_init_ethersound_config(chip); 735 if (err) 736 return err; 737 738 lx_irq_enable(chip); 739 740 /** \todo the mac address should be ready by not, but it isn't, 741 * so we wait for it */ 742 for (i = 0; i != 1000; ++i) { 743 err = lx_dsp_get_mac(chip); 744 if (err) 745 return err; 746 if (chip->mac_address[0] || chip->mac_address[1] || chip->mac_address[2] || 747 chip->mac_address[3] || chip->mac_address[4] || chip->mac_address[5]) 748 goto mac_ready; 749 msleep(1); 750 } 751 return -ETIMEDOUT; 752 753mac_ready: 754 dev_dbg(chip->card->dev, "mac address ready read after: %dms\n", i); 755 dev_info(chip->card->dev, 756 "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n", 757 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], 758 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 759 760 err = lx_init_get_version_features(chip); 761 if (err) 762 return err; 763 764 lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT); 765 766 chip->playback_mute = 0; 767 768 return err; 769} 770 771static const struct snd_pcm_ops lx_ops_playback = { 772 .open = lx_pcm_open, 773 .close = lx_pcm_close, 774 .prepare = lx_pcm_prepare, 775 .hw_params = lx_pcm_hw_params_playback, 776 .hw_free = lx_pcm_hw_free, 777 .trigger = lx_pcm_trigger, 778 .pointer = lx_pcm_stream_pointer, 779}; 780 781static const struct snd_pcm_ops lx_ops_capture = { 782 .open = lx_pcm_open, 783 .close = lx_pcm_close, 784 .prepare = lx_pcm_prepare, 785 .hw_params = lx_pcm_hw_params_capture, 786 .hw_free = lx_pcm_hw_free, 787 .trigger = lx_pcm_trigger, 788 .pointer = lx_pcm_stream_pointer, 789}; 790 791static int lx_pcm_create(struct lx6464es *chip) 792{ 793 int err; 794 struct snd_pcm *pcm; 795 796 u32 size = 64 * /* channels */ 797 3 * /* 24 bit samples */ 798 MAX_STREAM_BUFFER * /* periods */ 799 MICROBLAZE_IBL_MAX * /* frames per period */ 800 2; /* duplex */ 801 802 size = PAGE_ALIGN(size); 803 804 /* hardcoded device name & channel count */ 805 err = snd_pcm_new(chip->card, (char *)card_name, 0, 806 1, 1, &pcm); 807 if (err < 0) 808 return err; 809 810 pcm->private_data = chip; 811 812 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback); 813 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture); 814 815 pcm->info_flags = 0; 816 pcm->nonatomic = true; 817 strcpy(pcm->name, card_name); 818 819 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, 820 &chip->pci->dev, size, size); 821 822 chip->pcm = pcm; 823 chip->capture_stream.is_capture = 1; 824 825 return 0; 826} 827 828static int lx_control_playback_info(struct snd_kcontrol *kcontrol, 829 struct snd_ctl_elem_info *uinfo) 830{ 831 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 832 uinfo->count = 1; 833 uinfo->value.integer.min = 0; 834 uinfo->value.integer.max = 1; 835 return 0; 836} 837 838static int lx_control_playback_get(struct snd_kcontrol *kcontrol, 839 struct snd_ctl_elem_value *ucontrol) 840{ 841 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 842 ucontrol->value.integer.value[0] = chip->playback_mute; 843 return 0; 844} 845 846static int lx_control_playback_put(struct snd_kcontrol *kcontrol, 847 struct snd_ctl_elem_value *ucontrol) 848{ 849 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 850 int changed = 0; 851 int current_value = chip->playback_mute; 852 853 if (current_value != ucontrol->value.integer.value[0]) { 854 lx_level_unmute(chip, 0, !current_value); 855 chip->playback_mute = !current_value; 856 changed = 1; 857 } 858 return changed; 859} 860 861static const struct snd_kcontrol_new lx_control_playback_switch = { 862 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 863 .name = "PCM Playback Switch", 864 .index = 0, 865 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 866 .private_value = 0, 867 .info = lx_control_playback_info, 868 .get = lx_control_playback_get, 869 .put = lx_control_playback_put 870}; 871 872 873 874static void lx_proc_levels_read(struct snd_info_entry *entry, 875 struct snd_info_buffer *buffer) 876{ 877 u32 levels[64]; 878 int err; 879 int i, j; 880 struct lx6464es *chip = entry->private_data; 881 882 snd_iprintf(buffer, "capture levels:\n"); 883 err = lx_level_peaks(chip, 1, 64, levels); 884 if (err < 0) 885 return; 886 887 for (i = 0; i != 8; ++i) { 888 for (j = 0; j != 8; ++j) 889 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 890 snd_iprintf(buffer, "\n"); 891 } 892 893 snd_iprintf(buffer, "\nplayback levels:\n"); 894 895 err = lx_level_peaks(chip, 0, 64, levels); 896 if (err < 0) 897 return; 898 899 for (i = 0; i != 8; ++i) { 900 for (j = 0; j != 8; ++j) 901 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 902 snd_iprintf(buffer, "\n"); 903 } 904 905 snd_iprintf(buffer, "\n"); 906} 907 908static int lx_proc_create(struct snd_card *card, struct lx6464es *chip) 909{ 910 return snd_card_ro_proc_new(card, "levels", chip, lx_proc_levels_read); 911} 912 913 914static int snd_lx6464es_create(struct snd_card *card, 915 struct pci_dev *pci) 916{ 917 struct lx6464es *chip = card->private_data; 918 int err; 919 920 dev_dbg(card->dev, "->snd_lx6464es_create\n"); 921 922 /* enable PCI device */ 923 err = pcim_enable_device(pci); 924 if (err < 0) 925 return err; 926 927 pci_set_master(pci); 928 929 /* check if we can restrict PCI DMA transfers to 32 bits */ 930 err = dma_set_mask(&pci->dev, DMA_BIT_MASK(32)); 931 if (err < 0) { 932 dev_err(card->dev, 933 "architecture does not support 32bit PCI busmaster DMA\n"); 934 return -ENXIO; 935 } 936 937 chip->card = card; 938 chip->pci = pci; 939 chip->irq = -1; 940 941 /* initialize synchronization structs */ 942 mutex_init(&chip->lock); 943 mutex_init(&chip->msg_lock); 944 mutex_init(&chip->setup_mutex); 945 946 /* request resources */ 947 err = pci_request_regions(pci, card_name); 948 if (err < 0) 949 return err; 950 951 /* plx port */ 952 chip->port_plx = pci_resource_start(pci, 1); 953 chip->port_plx_remapped = devm_ioport_map(&pci->dev, chip->port_plx, 954 pci_resource_len(pci, 1)); 955 if (!chip->port_plx_remapped) 956 return -ENOMEM; 957 958 /* dsp port */ 959 chip->port_dsp_bar = pcim_iomap(pci, 2, 0); 960 if (!chip->port_dsp_bar) 961 return -ENOMEM; 962 963 err = devm_request_threaded_irq(&pci->dev, pci->irq, lx_interrupt, 964 lx_threaded_irq, IRQF_SHARED, 965 KBUILD_MODNAME, chip); 966 if (err) { 967 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 968 return err; 969 } 970 chip->irq = pci->irq; 971 card->sync_irq = chip->irq; 972 card->private_free = snd_lx6464es_free; 973 974 err = lx_init_dsp(chip); 975 if (err < 0) { 976 dev_err(card->dev, "error during DSP initialization\n"); 977 return err; 978 } 979 980 err = lx_pcm_create(chip); 981 if (err < 0) 982 return err; 983 984 err = lx_proc_create(card, chip); 985 if (err < 0) 986 return err; 987 988 err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch, 989 chip)); 990 if (err < 0) 991 return err; 992 993 return 0; 994} 995 996static int snd_lx6464es_probe(struct pci_dev *pci, 997 const struct pci_device_id *pci_id) 998{ 999 static int dev; 1000 struct snd_card *card; 1001 struct lx6464es *chip; 1002 int err; 1003 1004 dev_dbg(&pci->dev, "->snd_lx6464es_probe\n"); 1005 1006 if (dev >= SNDRV_CARDS) 1007 return -ENODEV; 1008 if (!enable[dev]) { 1009 dev++; 1010 return -ENOENT; 1011 } 1012 1013 err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 1014 sizeof(*chip), &card); 1015 if (err < 0) 1016 return err; 1017 chip = card->private_data; 1018 1019 err = snd_lx6464es_create(card, pci); 1020 if (err < 0) { 1021 dev_err(card->dev, "error during snd_lx6464es_create\n"); 1022 goto error; 1023 } 1024 1025 strcpy(card->driver, "LX6464ES"); 1026 sprintf(card->id, "LX6464ES_%02X%02X%02X", 1027 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 1028 1029 sprintf(card->shortname, "LX6464ES %02X.%02X.%02X.%02X.%02X.%02X", 1030 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], 1031 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 1032 1033 sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i", 1034 card->shortname, chip->port_plx, 1035 chip->port_dsp_bar, chip->irq); 1036 1037 err = snd_card_register(card); 1038 if (err < 0) 1039 goto error; 1040 1041 dev_dbg(chip->card->dev, "initialization successful\n"); 1042 pci_set_drvdata(pci, card); 1043 dev++; 1044 return 0; 1045 1046 error: 1047 snd_card_free(card); 1048 return err; 1049} 1050 1051static struct pci_driver lx6464es_driver = { 1052 .name = KBUILD_MODNAME, 1053 .id_table = snd_lx6464es_ids, 1054 .probe = snd_lx6464es_probe, 1055}; 1056 1057module_pci_driver(lx6464es_driver); 1058