1 /* -*- linux-c -*- * 2 * 3 * ALSA driver for the digigram lx6464es interface 4 * 5 * Copyright (c) 2008, 2009 Tim Blechmann <tim@klingt.org> 6 * 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; see the file COPYING. If not, write to 20 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 21 * Boston, MA 02111-1307, USA. 22 * 23 */ 24 25 #include <linux/module.h> 26 #include <linux/init.h> 27 #include <linux/pci.h> 28 #include <linux/delay.h> 29 #include <linux/slab.h> 30 31 #include <sound/initval.h> 32 #include <sound/control.h> 33 #include <sound/info.h> 34 35 #include "lx6464es.h" 36 37 MODULE_AUTHOR("Tim Blechmann"); 38 MODULE_LICENSE("GPL"); 39 MODULE_DESCRIPTION("digigram lx6464es"); 40 MODULE_SUPPORTED_DEVICE("{digigram lx6464es{}}"); 41 42 43 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 44 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 45 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 46 47 module_param_array(index, int, NULL, 0444); 48 MODULE_PARM_DESC(index, "Index value for Digigram LX6464ES interface."); 49 module_param_array(id, charp, NULL, 0444); 50 MODULE_PARM_DESC(id, "ID string for Digigram LX6464ES interface."); 51 module_param_array(enable, bool, NULL, 0444); 52 MODULE_PARM_DESC(enable, "Enable/disable specific Digigram LX6464ES soundcards."); 53 54 static const char card_name[] = "LX6464ES"; 55 56 57 #define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056 58 59 static DEFINE_PCI_DEVICE_TABLE(snd_lx6464es_ids) = { 60 { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES), 61 .subvendor = PCI_VENDOR_ID_DIGIGRAM, 62 .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM 63 }, /* LX6464ES */ 64 { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES), 65 .subvendor = PCI_VENDOR_ID_DIGIGRAM, 66 .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM 67 }, /* LX6464ES-CAE */ 68 { 0, }, 69 }; 70 71 MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids); 72 73 74 75 /* PGO pour USERo dans le registre pci_0x06/loc_0xEC */ 76 #define CHIPSC_RESET_XILINX (1L<<16) 77 78 79 /* alsa callbacks */ 80 static struct snd_pcm_hardware lx_caps = { 81 .info = (SNDRV_PCM_INFO_MMAP | 82 SNDRV_PCM_INFO_INTERLEAVED | 83 SNDRV_PCM_INFO_MMAP_VALID | 84 SNDRV_PCM_INFO_SYNC_START), 85 .formats = (SNDRV_PCM_FMTBIT_S16_LE | 86 SNDRV_PCM_FMTBIT_S16_BE | 87 SNDRV_PCM_FMTBIT_S24_3LE | 88 SNDRV_PCM_FMTBIT_S24_3BE), 89 .rates = (SNDRV_PCM_RATE_CONTINUOUS | 90 SNDRV_PCM_RATE_8000_192000), 91 .rate_min = 8000, 92 .rate_max = 192000, 93 .channels_min = 2, 94 .channels_max = 64, 95 .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER, 96 .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2), 97 .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER), 98 .periods_min = 2, 99 .periods_max = MAX_STREAM_BUFFER, 100 }; 101 102 static int lx_set_granularity(struct lx6464es *chip, u32 gran); 103 104 105 static int lx_hardware_open(struct lx6464es *chip, 106 struct snd_pcm_substream *substream) 107 { 108 int err = 0; 109 struct snd_pcm_runtime *runtime = substream->runtime; 110 int channels = runtime->channels; 111 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 112 113 snd_pcm_uframes_t period_size = runtime->period_size; 114 115 snd_printd(LXP "allocating pipe for %d channels\n", channels); 116 err = lx_pipe_allocate(chip, 0, is_capture, channels); 117 if (err < 0) { 118 snd_printk(KERN_ERR LXP "allocating pipe failed\n"); 119 return err; 120 } 121 122 err = lx_set_granularity(chip, period_size); 123 if (err < 0) { 124 snd_printk(KERN_ERR LXP "setting granularity to %ld failed\n", 125 period_size); 126 return err; 127 } 128 129 return 0; 130 } 131 132 static int lx_hardware_start(struct lx6464es *chip, 133 struct snd_pcm_substream *substream) 134 { 135 int err = 0; 136 struct snd_pcm_runtime *runtime = substream->runtime; 137 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 138 139 snd_printd(LXP "setting stream format\n"); 140 err = lx_stream_set_format(chip, runtime, 0, is_capture); 141 if (err < 0) { 142 snd_printk(KERN_ERR LXP "setting stream format failed\n"); 143 return err; 144 } 145 146 snd_printd(LXP "starting pipe\n"); 147 err = lx_pipe_start(chip, 0, is_capture); 148 if (err < 0) { 149 snd_printk(KERN_ERR LXP "starting pipe failed\n"); 150 return err; 151 } 152 153 snd_printd(LXP "waiting for pipe to start\n"); 154 err = lx_pipe_wait_for_start(chip, 0, is_capture); 155 if (err < 0) { 156 snd_printk(KERN_ERR LXP "waiting for pipe failed\n"); 157 return err; 158 } 159 160 return err; 161 } 162 163 164 static int lx_hardware_stop(struct lx6464es *chip, 165 struct snd_pcm_substream *substream) 166 { 167 int err = 0; 168 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 169 170 snd_printd(LXP "pausing pipe\n"); 171 err = lx_pipe_pause(chip, 0, is_capture); 172 if (err < 0) { 173 snd_printk(KERN_ERR LXP "pausing pipe failed\n"); 174 return err; 175 } 176 177 snd_printd(LXP "waiting for pipe to become idle\n"); 178 err = lx_pipe_wait_for_idle(chip, 0, is_capture); 179 if (err < 0) { 180 snd_printk(KERN_ERR LXP "waiting for pipe failed\n"); 181 return err; 182 } 183 184 snd_printd(LXP "stopping pipe\n"); 185 err = lx_pipe_stop(chip, 0, is_capture); 186 if (err < 0) { 187 snd_printk(LXP "stopping pipe failed\n"); 188 return err; 189 } 190 191 return err; 192 } 193 194 195 static int lx_hardware_close(struct lx6464es *chip, 196 struct snd_pcm_substream *substream) 197 { 198 int err = 0; 199 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 200 201 snd_printd(LXP "releasing pipe\n"); 202 err = lx_pipe_release(chip, 0, is_capture); 203 if (err < 0) { 204 snd_printk(LXP "releasing pipe failed\n"); 205 return err; 206 } 207 208 return err; 209 } 210 211 212 static int lx_pcm_open(struct snd_pcm_substream *substream) 213 { 214 struct lx6464es *chip = snd_pcm_substream_chip(substream); 215 struct snd_pcm_runtime *runtime = substream->runtime; 216 int err = 0; 217 int board_rate; 218 219 snd_printdd("->lx_pcm_open\n"); 220 mutex_lock(&chip->setup_mutex); 221 222 /* copy the struct snd_pcm_hardware struct */ 223 runtime->hw = lx_caps; 224 225 #if 0 226 /* buffer-size should better be multiple of period-size */ 227 err = snd_pcm_hw_constraint_integer(runtime, 228 SNDRV_PCM_HW_PARAM_PERIODS); 229 if (err < 0) { 230 snd_printk(KERN_WARNING LXP "could not constrain periods\n"); 231 goto exit; 232 } 233 #endif 234 235 /* the clock rate cannot be changed */ 236 board_rate = chip->board_sample_rate; 237 err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 238 board_rate, board_rate); 239 240 if (err < 0) { 241 snd_printk(KERN_WARNING LXP "could not constrain periods\n"); 242 goto exit; 243 } 244 245 /* constrain period size */ 246 err = snd_pcm_hw_constraint_minmax(runtime, 247 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 248 MICROBLAZE_IBL_MIN, 249 MICROBLAZE_IBL_MAX); 250 if (err < 0) { 251 snd_printk(KERN_WARNING LXP 252 "could not constrain period size\n"); 253 goto exit; 254 } 255 256 snd_pcm_hw_constraint_step(runtime, 0, 257 SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); 258 259 snd_pcm_set_sync(substream); 260 err = 0; 261 262 exit: 263 runtime->private_data = chip; 264 265 mutex_unlock(&chip->setup_mutex); 266 snd_printdd("<-lx_pcm_open, %d\n", err); 267 return err; 268 } 269 270 static int lx_pcm_close(struct snd_pcm_substream *substream) 271 { 272 int err = 0; 273 snd_printdd("->lx_pcm_close\n"); 274 return err; 275 } 276 277 static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream 278 *substream) 279 { 280 struct lx6464es *chip = snd_pcm_substream_chip(substream); 281 snd_pcm_uframes_t pos; 282 unsigned long flags; 283 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 284 285 struct lx_stream *lx_stream = is_capture ? &chip->capture_stream : 286 &chip->playback_stream; 287 288 snd_printdd("->lx_pcm_stream_pointer\n"); 289 290 spin_lock_irqsave(&chip->lock, flags); 291 pos = lx_stream->frame_pos * substream->runtime->period_size; 292 spin_unlock_irqrestore(&chip->lock, flags); 293 294 snd_printdd(LXP "stream_pointer at %ld\n", pos); 295 return pos; 296 } 297 298 static int lx_pcm_prepare(struct snd_pcm_substream *substream) 299 { 300 struct lx6464es *chip = snd_pcm_substream_chip(substream); 301 int err = 0; 302 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 303 304 snd_printdd("->lx_pcm_prepare\n"); 305 306 mutex_lock(&chip->setup_mutex); 307 308 if (chip->hardware_running[is_capture]) { 309 err = lx_hardware_stop(chip, substream); 310 if (err < 0) { 311 snd_printk(KERN_ERR LXP "failed to stop hardware. " 312 "Error code %d\n", err); 313 goto exit; 314 } 315 316 err = lx_hardware_close(chip, substream); 317 if (err < 0) { 318 snd_printk(KERN_ERR LXP "failed to close hardware. " 319 "Error code %d\n", err); 320 goto exit; 321 } 322 } 323 324 snd_printd(LXP "opening hardware\n"); 325 err = lx_hardware_open(chip, substream); 326 if (err < 0) { 327 snd_printk(KERN_ERR LXP "failed to open hardware. " 328 "Error code %d\n", err); 329 goto exit; 330 } 331 332 err = lx_hardware_start(chip, substream); 333 if (err < 0) { 334 snd_printk(KERN_ERR LXP "failed to start hardware. " 335 "Error code %d\n", err); 336 goto exit; 337 } 338 339 chip->hardware_running[is_capture] = 1; 340 341 if (chip->board_sample_rate != substream->runtime->rate) { 342 if (!err) 343 chip->board_sample_rate = substream->runtime->rate; 344 } 345 346 exit: 347 mutex_unlock(&chip->setup_mutex); 348 return err; 349 } 350 351 static int lx_pcm_hw_params(struct snd_pcm_substream *substream, 352 struct snd_pcm_hw_params *hw_params, int is_capture) 353 { 354 struct lx6464es *chip = snd_pcm_substream_chip(substream); 355 int err = 0; 356 357 snd_printdd("->lx_pcm_hw_params\n"); 358 359 mutex_lock(&chip->setup_mutex); 360 361 /* set dma buffer */ 362 err = snd_pcm_lib_malloc_pages(substream, 363 params_buffer_bytes(hw_params)); 364 365 if (is_capture) 366 chip->capture_stream.stream = substream; 367 else 368 chip->playback_stream.stream = substream; 369 370 mutex_unlock(&chip->setup_mutex); 371 return err; 372 } 373 374 static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream, 375 struct snd_pcm_hw_params *hw_params) 376 { 377 return lx_pcm_hw_params(substream, hw_params, 0); 378 } 379 380 static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream, 381 struct snd_pcm_hw_params *hw_params) 382 { 383 return lx_pcm_hw_params(substream, hw_params, 1); 384 } 385 386 static int lx_pcm_hw_free(struct snd_pcm_substream *substream) 387 { 388 struct lx6464es *chip = snd_pcm_substream_chip(substream); 389 int err = 0; 390 int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 391 392 snd_printdd("->lx_pcm_hw_free\n"); 393 mutex_lock(&chip->setup_mutex); 394 395 if (chip->hardware_running[is_capture]) { 396 err = lx_hardware_stop(chip, substream); 397 if (err < 0) { 398 snd_printk(KERN_ERR LXP "failed to stop hardware. " 399 "Error code %d\n", err); 400 goto exit; 401 } 402 403 err = lx_hardware_close(chip, substream); 404 if (err < 0) { 405 snd_printk(KERN_ERR LXP "failed to close hardware. " 406 "Error code %d\n", err); 407 goto exit; 408 } 409 410 chip->hardware_running[is_capture] = 0; 411 } 412 413 err = snd_pcm_lib_free_pages(substream); 414 415 if (is_capture) 416 chip->capture_stream.stream = 0; 417 else 418 chip->playback_stream.stream = 0; 419 420 exit: 421 mutex_unlock(&chip->setup_mutex); 422 return err; 423 } 424 425 static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream) 426 { 427 struct snd_pcm_substream *substream = lx_stream->stream; 428 const unsigned int is_capture = lx_stream->is_capture; 429 430 int err; 431 432 const u32 channels = substream->runtime->channels; 433 const u32 bytes_per_frame = channels * 3; 434 const u32 period_size = substream->runtime->period_size; 435 const u32 periods = substream->runtime->periods; 436 const u32 period_bytes = period_size * bytes_per_frame; 437 438 dma_addr_t buf = substream->dma_buffer.addr; 439 int i; 440 441 u32 needed, freed; 442 u32 size_array[5]; 443 444 for (i = 0; i != periods; ++i) { 445 u32 buffer_index = 0; 446 447 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, 448 size_array); 449 snd_printdd(LXP "starting: needed %d, freed %d\n", 450 needed, freed); 451 452 err = lx_buffer_give(chip, 0, is_capture, period_bytes, 453 lower_32_bits(buf), upper_32_bits(buf), 454 &buffer_index); 455 456 snd_printdd(LXP "starting: buffer index %x on 0x%lx (%d bytes)\n", 457 buffer_index, (unsigned long)buf, period_bytes); 458 buf += period_bytes; 459 } 460 461 err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array); 462 snd_printdd(LXP "starting: needed %d, freed %d\n", needed, freed); 463 464 snd_printd(LXP "starting: starting stream\n"); 465 err = lx_stream_start(chip, 0, is_capture); 466 if (err < 0) 467 snd_printk(KERN_ERR LXP "couldn't start stream\n"); 468 else 469 lx_stream->status = LX_STREAM_STATUS_RUNNING; 470 471 lx_stream->frame_pos = 0; 472 } 473 474 static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream) 475 { 476 const unsigned int is_capture = lx_stream->is_capture; 477 int err; 478 479 snd_printd(LXP "stopping: stopping stream\n"); 480 err = lx_stream_stop(chip, 0, is_capture); 481 if (err < 0) 482 snd_printk(KERN_ERR LXP "couldn't stop stream\n"); 483 else 484 lx_stream->status = LX_STREAM_STATUS_FREE; 485 486 } 487 488 static void lx_trigger_tasklet_dispatch_stream(struct lx6464es *chip, 489 struct lx_stream *lx_stream) 490 { 491 switch (lx_stream->status) { 492 case LX_STREAM_STATUS_SCHEDULE_RUN: 493 lx_trigger_start(chip, lx_stream); 494 break; 495 496 case LX_STREAM_STATUS_SCHEDULE_STOP: 497 lx_trigger_stop(chip, lx_stream); 498 break; 499 500 default: 501 break; 502 } 503 } 504 505 static void lx_trigger_tasklet(unsigned long data) 506 { 507 struct lx6464es *chip = (struct lx6464es *)data; 508 unsigned long flags; 509 510 snd_printdd("->lx_trigger_tasklet\n"); 511 512 spin_lock_irqsave(&chip->lock, flags); 513 lx_trigger_tasklet_dispatch_stream(chip, &chip->capture_stream); 514 lx_trigger_tasklet_dispatch_stream(chip, &chip->playback_stream); 515 spin_unlock_irqrestore(&chip->lock, flags); 516 } 517 518 static int lx_pcm_trigger_dispatch(struct lx6464es *chip, 519 struct lx_stream *lx_stream, int cmd) 520 { 521 int err = 0; 522 523 switch (cmd) { 524 case SNDRV_PCM_TRIGGER_START: 525 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN; 526 break; 527 528 case SNDRV_PCM_TRIGGER_STOP: 529 lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP; 530 break; 531 532 default: 533 err = -EINVAL; 534 goto exit; 535 } 536 tasklet_schedule(&chip->trigger_tasklet); 537 538 exit: 539 return err; 540 } 541 542 543 static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 544 { 545 struct lx6464es *chip = snd_pcm_substream_chip(substream); 546 const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); 547 struct lx_stream *stream = is_capture ? &chip->capture_stream : 548 &chip->playback_stream; 549 550 snd_printdd("->lx_pcm_trigger\n"); 551 552 return lx_pcm_trigger_dispatch(chip, stream, cmd); 553 } 554 555 static int snd_lx6464es_free(struct lx6464es *chip) 556 { 557 snd_printdd("->snd_lx6464es_free\n"); 558 559 lx_irq_disable(chip); 560 561 if (chip->irq >= 0) 562 free_irq(chip->irq, chip); 563 564 iounmap(chip->port_dsp_bar); 565 ioport_unmap(chip->port_plx_remapped); 566 567 pci_release_regions(chip->pci); 568 pci_disable_device(chip->pci); 569 570 kfree(chip); 571 572 return 0; 573 } 574 575 static int snd_lx6464es_dev_free(struct snd_device *device) 576 { 577 return snd_lx6464es_free(device->device_data); 578 } 579 580 /* reset the dsp during initialization */ 581 static int lx_init_xilinx_reset(struct lx6464es *chip) 582 { 583 int i; 584 u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC); 585 586 snd_printdd("->lx_init_xilinx_reset\n"); 587 588 /* activate reset of xilinx */ 589 plx_reg &= ~CHIPSC_RESET_XILINX; 590 591 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); 592 msleep(1); 593 594 lx_plx_reg_write(chip, ePLX_MBOX3, 0); 595 msleep(1); 596 597 plx_reg |= CHIPSC_RESET_XILINX; 598 lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); 599 600 /* deactivate reset of xilinx */ 601 for (i = 0; i != 100; ++i) { 602 u32 reg_mbox3; 603 msleep(10); 604 reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3); 605 if (reg_mbox3) { 606 snd_printd(LXP "xilinx reset done\n"); 607 snd_printdd(LXP "xilinx took %d loops\n", i); 608 break; 609 } 610 } 611 612 /* todo: add some error handling? */ 613 614 /* clear mr */ 615 lx_dsp_reg_write(chip, eReg_CSM, 0); 616 617 /* le xilinx ES peut ne pas etre encore pret, on attend. */ 618 msleep(600); 619 620 return 0; 621 } 622 623 static int lx_init_xilinx_test(struct lx6464es *chip) 624 { 625 u32 reg; 626 627 snd_printdd("->lx_init_xilinx_test\n"); 628 629 /* TEST if we have access to Xilinx/MicroBlaze */ 630 lx_dsp_reg_write(chip, eReg_CSM, 0); 631 632 reg = lx_dsp_reg_read(chip, eReg_CSM); 633 634 if (reg) { 635 snd_printk(KERN_ERR LXP "Problem: Reg_CSM %x.\n", reg); 636 637 /* PCI9056_SPACE0_REMAP */ 638 lx_plx_reg_write(chip, ePLX_PCICR, 1); 639 640 reg = lx_dsp_reg_read(chip, eReg_CSM); 641 if (reg) { 642 snd_printk(KERN_ERR LXP "Error: Reg_CSM %x.\n", reg); 643 return -EAGAIN; /* seems to be appropriate */ 644 } 645 } 646 647 snd_printd(LXP "Xilinx/MicroBlaze access test successful\n"); 648 649 return 0; 650 } 651 652 /* initialize ethersound */ 653 static int lx_init_ethersound_config(struct lx6464es *chip) 654 { 655 int i; 656 u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES); 657 658 /* configure 64 io channels */ 659 u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) | 660 (64 << IOCR_INPUTS_OFFSET) | 661 (64 << IOCR_OUTPUTS_OFFSET) | 662 (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET); 663 664 snd_printdd("->lx_init_ethersound\n"); 665 666 chip->freq_ratio = FREQ_RATIO_SINGLE_MODE; 667 668 /* 669 * write it to the card ! 670 * this actually kicks the ES xilinx, the first time since poweron. 671 * the MAC address in the Reg_ADMACESMSB Reg_ADMACESLSB registers 672 * is not ready before this is done, and the bit 2 in Reg_CSES is set. 673 * */ 674 lx_dsp_reg_write(chip, eReg_CONFES, conf_es); 675 676 for (i = 0; i != 1000; ++i) { 677 if (lx_dsp_reg_read(chip, eReg_CSES) & 4) { 678 snd_printd(LXP "ethersound initialized after %dms\n", 679 i); 680 goto ethersound_initialized; 681 } 682 msleep(1); 683 } 684 snd_printk(KERN_WARNING LXP 685 "ethersound could not be initialized after %dms\n", i); 686 return -ETIMEDOUT; 687 688 ethersound_initialized: 689 snd_printd(LXP "ethersound initialized\n"); 690 return 0; 691 } 692 693 static int lx_init_get_version_features(struct lx6464es *chip) 694 { 695 u32 dsp_version; 696 697 int err; 698 699 snd_printdd("->lx_init_get_version_features\n"); 700 701 err = lx_dsp_get_version(chip, &dsp_version); 702 703 if (err == 0) { 704 u32 freq; 705 706 snd_printk(LXP "DSP version: V%02d.%02d #%d\n", 707 (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff, 708 dsp_version & 0xff); 709 710 /* later: what firmware version do we expect? */ 711 712 /* retrieve Play/Rec features */ 713 /* done here because we may have to handle alternate 714 * DSP files. */ 715 /* later */ 716 717 /* init the EtherSound sample rate */ 718 err = lx_dsp_get_clock_frequency(chip, &freq); 719 if (err == 0) 720 chip->board_sample_rate = freq; 721 snd_printd(LXP "actual clock frequency %d\n", freq); 722 } else { 723 snd_printk(KERN_ERR LXP "DSP corrupted \n"); 724 err = -EAGAIN; 725 } 726 727 return err; 728 } 729 730 static int lx_set_granularity(struct lx6464es *chip, u32 gran) 731 { 732 int err = 0; 733 u32 snapped_gran = MICROBLAZE_IBL_MIN; 734 735 snd_printdd("->lx_set_granularity\n"); 736 737 /* blocksize is a power of 2 */ 738 while ((snapped_gran < gran) && 739 (snapped_gran < MICROBLAZE_IBL_MAX)) { 740 snapped_gran *= 2; 741 } 742 743 if (snapped_gran == chip->pcm_granularity) 744 return 0; 745 746 err = lx_dsp_set_granularity(chip, snapped_gran); 747 if (err < 0) { 748 snd_printk(KERN_WARNING LXP "could not set granularity\n"); 749 err = -EAGAIN; 750 } 751 752 if (snapped_gran != gran) 753 snd_printk(LXP "snapped blocksize to %d\n", snapped_gran); 754 755 snd_printd(LXP "set blocksize on board %d\n", snapped_gran); 756 chip->pcm_granularity = snapped_gran; 757 758 return err; 759 } 760 761 /* initialize and test the xilinx dsp chip */ 762 static int lx_init_dsp(struct lx6464es *chip) 763 { 764 int err; 765 int i; 766 767 snd_printdd("->lx_init_dsp\n"); 768 769 snd_printd(LXP "initialize board\n"); 770 err = lx_init_xilinx_reset(chip); 771 if (err) 772 return err; 773 774 snd_printd(LXP "testing board\n"); 775 err = lx_init_xilinx_test(chip); 776 if (err) 777 return err; 778 779 snd_printd(LXP "initialize ethersound configuration\n"); 780 err = lx_init_ethersound_config(chip); 781 if (err) 782 return err; 783 784 lx_irq_enable(chip); 785 786 /** \todo the mac address should be ready by not, but it isn't, 787 * so we wait for it */ 788 for (i = 0; i != 1000; ++i) { 789 err = lx_dsp_get_mac(chip); 790 if (err) 791 return err; 792 if (chip->mac_address[0] || chip->mac_address[1] || chip->mac_address[2] || 793 chip->mac_address[3] || chip->mac_address[4] || chip->mac_address[5]) 794 goto mac_ready; 795 msleep(1); 796 } 797 return -ETIMEDOUT; 798 799 mac_ready: 800 snd_printd(LXP "mac address ready read after: %dms\n", i); 801 snd_printk(LXP "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n", 802 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], 803 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 804 805 err = lx_init_get_version_features(chip); 806 if (err) 807 return err; 808 809 lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT); 810 811 chip->playback_mute = 0; 812 813 return err; 814 } 815 816 static struct snd_pcm_ops lx_ops_playback = { 817 .open = lx_pcm_open, 818 .close = lx_pcm_close, 819 .ioctl = snd_pcm_lib_ioctl, 820 .prepare = lx_pcm_prepare, 821 .hw_params = lx_pcm_hw_params_playback, 822 .hw_free = lx_pcm_hw_free, 823 .trigger = lx_pcm_trigger, 824 .pointer = lx_pcm_stream_pointer, 825 }; 826 827 static struct snd_pcm_ops lx_ops_capture = { 828 .open = lx_pcm_open, 829 .close = lx_pcm_close, 830 .ioctl = snd_pcm_lib_ioctl, 831 .prepare = lx_pcm_prepare, 832 .hw_params = lx_pcm_hw_params_capture, 833 .hw_free = lx_pcm_hw_free, 834 .trigger = lx_pcm_trigger, 835 .pointer = lx_pcm_stream_pointer, 836 }; 837 838 static int lx_pcm_create(struct lx6464es *chip) 839 { 840 int err; 841 struct snd_pcm *pcm; 842 843 u32 size = 64 * /* channels */ 844 3 * /* 24 bit samples */ 845 MAX_STREAM_BUFFER * /* periods */ 846 MICROBLAZE_IBL_MAX * /* frames per period */ 847 2; /* duplex */ 848 849 size = PAGE_ALIGN(size); 850 851 /* hardcoded device name & channel count */ 852 err = snd_pcm_new(chip->card, (char *)card_name, 0, 853 1, 1, &pcm); 854 if (err < 0) 855 return err; 856 857 pcm->private_data = chip; 858 859 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback); 860 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture); 861 862 pcm->info_flags = 0; 863 strcpy(pcm->name, card_name); 864 865 err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 866 snd_dma_pci_data(chip->pci), 867 size, size); 868 if (err < 0) 869 return err; 870 871 chip->pcm = pcm; 872 chip->capture_stream.is_capture = 1; 873 874 return 0; 875 } 876 877 static int lx_control_playback_info(struct snd_kcontrol *kcontrol, 878 struct snd_ctl_elem_info *uinfo) 879 { 880 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 881 uinfo->count = 1; 882 uinfo->value.integer.min = 0; 883 uinfo->value.integer.max = 1; 884 return 0; 885 } 886 887 static int lx_control_playback_get(struct snd_kcontrol *kcontrol, 888 struct snd_ctl_elem_value *ucontrol) 889 { 890 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 891 ucontrol->value.integer.value[0] = chip->playback_mute; 892 return 0; 893 } 894 895 static int lx_control_playback_put(struct snd_kcontrol *kcontrol, 896 struct snd_ctl_elem_value *ucontrol) 897 { 898 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 899 int changed = 0; 900 int current_value = chip->playback_mute; 901 902 if (current_value != ucontrol->value.integer.value[0]) { 903 lx_level_unmute(chip, 0, !current_value); 904 chip->playback_mute = !current_value; 905 changed = 1; 906 } 907 return changed; 908 } 909 910 static struct snd_kcontrol_new lx_control_playback_switch = { 911 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 912 .name = "PCM Playback Switch", 913 .index = 0, 914 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 915 .private_value = 0, 916 .info = lx_control_playback_info, 917 .get = lx_control_playback_get, 918 .put = lx_control_playback_put 919 }; 920 921 922 923 static void lx_proc_levels_read(struct snd_info_entry *entry, 924 struct snd_info_buffer *buffer) 925 { 926 u32 levels[64]; 927 int err; 928 int i, j; 929 struct lx6464es *chip = entry->private_data; 930 931 snd_iprintf(buffer, "capture levels:\n"); 932 err = lx_level_peaks(chip, 1, 64, levels); 933 if (err < 0) 934 return; 935 936 for (i = 0; i != 8; ++i) { 937 for (j = 0; j != 8; ++j) 938 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 939 snd_iprintf(buffer, "\n"); 940 } 941 942 snd_iprintf(buffer, "\nplayback levels:\n"); 943 944 err = lx_level_peaks(chip, 0, 64, levels); 945 if (err < 0) 946 return; 947 948 for (i = 0; i != 8; ++i) { 949 for (j = 0; j != 8; ++j) 950 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 951 snd_iprintf(buffer, "\n"); 952 } 953 954 snd_iprintf(buffer, "\n"); 955 } 956 957 static int lx_proc_create(struct snd_card *card, struct lx6464es *chip) 958 { 959 struct snd_info_entry *entry; 960 int err = snd_card_proc_new(card, "levels", &entry); 961 if (err < 0) 962 return err; 963 964 snd_info_set_text_ops(entry, chip, lx_proc_levels_read); 965 return 0; 966 } 967 968 969 static int snd_lx6464es_create(struct snd_card *card, 970 struct pci_dev *pci, 971 struct lx6464es **rchip) 972 { 973 struct lx6464es *chip; 974 int err; 975 976 static struct snd_device_ops ops = { 977 .dev_free = snd_lx6464es_dev_free, 978 }; 979 980 snd_printdd("->snd_lx6464es_create\n"); 981 982 *rchip = NULL; 983 984 /* enable PCI device */ 985 err = pci_enable_device(pci); 986 if (err < 0) 987 return err; 988 989 pci_set_master(pci); 990 991 /* check if we can restrict PCI DMA transfers to 32 bits */ 992 err = pci_set_dma_mask(pci, DMA_BIT_MASK(32)); 993 if (err < 0) { 994 snd_printk(KERN_ERR "architecture does not support " 995 "32bit PCI busmaster DMA\n"); 996 pci_disable_device(pci); 997 return -ENXIO; 998 } 999 1000 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 1001 if (chip == NULL) { 1002 err = -ENOMEM; 1003 goto alloc_failed; 1004 } 1005 1006 chip->card = card; 1007 chip->pci = pci; 1008 chip->irq = -1; 1009 1010 /* initialize synchronization structs */ 1011 spin_lock_init(&chip->lock); 1012 spin_lock_init(&chip->msg_lock); 1013 mutex_init(&chip->setup_mutex); 1014 tasklet_init(&chip->trigger_tasklet, lx_trigger_tasklet, 1015 (unsigned long)chip); 1016 tasklet_init(&chip->tasklet_capture, lx_tasklet_capture, 1017 (unsigned long)chip); 1018 tasklet_init(&chip->tasklet_playback, lx_tasklet_playback, 1019 (unsigned long)chip); 1020 1021 /* request resources */ 1022 err = pci_request_regions(pci, card_name); 1023 if (err < 0) 1024 goto request_regions_failed; 1025 1026 /* plx port */ 1027 chip->port_plx = pci_resource_start(pci, 1); 1028 chip->port_plx_remapped = ioport_map(chip->port_plx, 1029 pci_resource_len(pci, 1)); 1030 1031 /* dsp port */ 1032 chip->port_dsp_bar = pci_ioremap_bar(pci, 2); 1033 1034 err = request_irq(pci->irq, lx_interrupt, IRQF_SHARED, 1035 KBUILD_MODNAME, chip); 1036 if (err) { 1037 snd_printk(KERN_ERR LXP "unable to grab IRQ %d\n", pci->irq); 1038 goto request_irq_failed; 1039 } 1040 chip->irq = pci->irq; 1041 1042 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 1043 if (err < 0) 1044 goto device_new_failed; 1045 1046 err = lx_init_dsp(chip); 1047 if (err < 0) { 1048 snd_printk(KERN_ERR LXP "error during DSP initialization\n"); 1049 return err; 1050 } 1051 1052 err = lx_pcm_create(chip); 1053 if (err < 0) 1054 return err; 1055 1056 err = lx_proc_create(card, chip); 1057 if (err < 0) 1058 return err; 1059 1060 err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch, 1061 chip)); 1062 if (err < 0) 1063 return err; 1064 1065 snd_card_set_dev(card, &pci->dev); 1066 1067 *rchip = chip; 1068 return 0; 1069 1070 device_new_failed: 1071 free_irq(pci->irq, chip); 1072 1073 request_irq_failed: 1074 pci_release_regions(pci); 1075 1076 request_regions_failed: 1077 kfree(chip); 1078 1079 alloc_failed: 1080 pci_disable_device(pci); 1081 1082 return err; 1083 } 1084 1085 static int snd_lx6464es_probe(struct pci_dev *pci, 1086 const struct pci_device_id *pci_id) 1087 { 1088 static int dev; 1089 struct snd_card *card; 1090 struct lx6464es *chip; 1091 int err; 1092 1093 snd_printdd("->snd_lx6464es_probe\n"); 1094 1095 if (dev >= SNDRV_CARDS) 1096 return -ENODEV; 1097 if (!enable[dev]) { 1098 dev++; 1099 return -ENOENT; 1100 } 1101 1102 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); 1103 if (err < 0) 1104 return err; 1105 1106 err = snd_lx6464es_create(card, pci, &chip); 1107 if (err < 0) { 1108 snd_printk(KERN_ERR LXP "error during snd_lx6464es_create\n"); 1109 goto out_free; 1110 } 1111 1112 strcpy(card->driver, "LX6464ES"); 1113 sprintf(card->id, "LX6464ES_%02X%02X%02X", 1114 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 1115 1116 sprintf(card->shortname, "LX6464ES %02X.%02X.%02X.%02X.%02X.%02X", 1117 chip->mac_address[0], chip->mac_address[1], chip->mac_address[2], 1118 chip->mac_address[3], chip->mac_address[4], chip->mac_address[5]); 1119 1120 sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i", 1121 card->shortname, chip->port_plx, 1122 chip->port_dsp_bar, chip->irq); 1123 1124 err = snd_card_register(card); 1125 if (err < 0) 1126 goto out_free; 1127 1128 snd_printdd(LXP "initialization successful\n"); 1129 pci_set_drvdata(pci, card); 1130 dev++; 1131 return 0; 1132 1133 out_free: 1134 snd_card_free(card); 1135 return err; 1136 1137 } 1138 1139 static void snd_lx6464es_remove(struct pci_dev *pci) 1140 { 1141 snd_card_free(pci_get_drvdata(pci)); 1142 } 1143 1144 1145 static struct pci_driver lx6464es_driver = { 1146 .name = KBUILD_MODNAME, 1147 .id_table = snd_lx6464es_ids, 1148 .probe = snd_lx6464es_probe, 1149 .remove = snd_lx6464es_remove, 1150 }; 1151 1152 module_pci_driver(lx6464es_driver); 1153