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 37MODULE_AUTHOR("Tim Blechmann"); 38MODULE_LICENSE("GPL"); 39MODULE_DESCRIPTION("digigram lx6464es"); 40MODULE_SUPPORTED_DEVICE("{digigram lx6464es{}}"); 41 42 43static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 44static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 45static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 46 47module_param_array(index, int, NULL, 0444); 48MODULE_PARM_DESC(index, "Index value for Digigram LX6464ES interface."); 49module_param_array(id, charp, NULL, 0444); 50MODULE_PARM_DESC(id, "ID string for Digigram LX6464ES interface."); 51module_param_array(enable, bool, NULL, 0444); 52MODULE_PARM_DESC(enable, "Enable/disable specific Digigram LX6464ES soundcards."); 53 54static const char card_name[] = "LX6464ES"; 55 56 57#define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056 58 59static 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 71MODULE_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 */ 80static 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 102static int lx_set_granularity(struct lx6464es *chip, u32 gran); 103 104 105static 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 132static 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 164static 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 195static 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 212static 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 262exit: 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 270static 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 277static 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 298static 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 346exit: 347 mutex_unlock(&chip->setup_mutex); 348 return err; 349} 350 351static 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 374static 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 380static 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 386static 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 420exit: 421 mutex_unlock(&chip->setup_mutex); 422 return err; 423} 424 425static 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 %p (%d bytes)\n", 457 buffer_index, (void *)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 474static 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 488static 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 505static 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 518static 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 538exit: 539 return err; 540} 541 542 543static 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 555static 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 575static 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 */ 581static int __devinit 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 623static int __devinit 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 */ 653static int __devinit 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 693static int __devinit 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 730static 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 */ 762static int __devinit lx_init_dsp(struct lx6464es *chip) 763{ 764 int err; 765 u8 mac_address[6]; 766 int i; 767 768 snd_printdd("->lx_init_dsp\n"); 769 770 snd_printd(LXP "initialize board\n"); 771 err = lx_init_xilinx_reset(chip); 772 if (err) 773 return err; 774 775 snd_printd(LXP "testing board\n"); 776 err = lx_init_xilinx_test(chip); 777 if (err) 778 return err; 779 780 snd_printd(LXP "initialize ethersound configuration\n"); 781 err = lx_init_ethersound_config(chip); 782 if (err) 783 return err; 784 785 lx_irq_enable(chip); 786 787 /** \todo the mac address should be ready by not, but it isn't, 788 * so we wait for it */ 789 for (i = 0; i != 1000; ++i) { 790 err = lx_dsp_get_mac(chip, mac_address); 791 if (err) 792 return err; 793 if (mac_address[0] || mac_address[1] || mac_address[2] || 794 mac_address[3] || mac_address[4] || mac_address[5]) 795 goto mac_ready; 796 msleep(1); 797 } 798 return -ETIMEDOUT; 799 800mac_ready: 801 snd_printd(LXP "mac address ready read after: %dms\n", i); 802 snd_printk(LXP "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n", 803 mac_address[0], mac_address[1], mac_address[2], 804 mac_address[3], mac_address[4], mac_address[5]); 805 806 err = lx_init_get_version_features(chip); 807 if (err) 808 return err; 809 810 lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT); 811 812 chip->playback_mute = 0; 813 814 return err; 815} 816 817static struct snd_pcm_ops lx_ops_playback = { 818 .open = lx_pcm_open, 819 .close = lx_pcm_close, 820 .ioctl = snd_pcm_lib_ioctl, 821 .prepare = lx_pcm_prepare, 822 .hw_params = lx_pcm_hw_params_playback, 823 .hw_free = lx_pcm_hw_free, 824 .trigger = lx_pcm_trigger, 825 .pointer = lx_pcm_stream_pointer, 826}; 827 828static struct snd_pcm_ops lx_ops_capture = { 829 .open = lx_pcm_open, 830 .close = lx_pcm_close, 831 .ioctl = snd_pcm_lib_ioctl, 832 .prepare = lx_pcm_prepare, 833 .hw_params = lx_pcm_hw_params_capture, 834 .hw_free = lx_pcm_hw_free, 835 .trigger = lx_pcm_trigger, 836 .pointer = lx_pcm_stream_pointer, 837}; 838 839static int __devinit lx_pcm_create(struct lx6464es *chip) 840{ 841 int err; 842 struct snd_pcm *pcm; 843 844 u32 size = 64 * /* channels */ 845 3 * /* 24 bit samples */ 846 MAX_STREAM_BUFFER * /* periods */ 847 MICROBLAZE_IBL_MAX * /* frames per period */ 848 2; /* duplex */ 849 850 size = PAGE_ALIGN(size); 851 852 /* hardcoded device name & channel count */ 853 err = snd_pcm_new(chip->card, (char *)card_name, 0, 854 1, 1, &pcm); 855 856 pcm->private_data = chip; 857 858 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback); 859 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture); 860 861 pcm->info_flags = 0; 862 strcpy(pcm->name, card_name); 863 864 err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 865 snd_dma_pci_data(chip->pci), 866 size, size); 867 if (err < 0) 868 return err; 869 870 chip->pcm = pcm; 871 chip->capture_stream.is_capture = 1; 872 873 return 0; 874} 875 876static int lx_control_playback_info(struct snd_kcontrol *kcontrol, 877 struct snd_ctl_elem_info *uinfo) 878{ 879 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 880 uinfo->count = 1; 881 uinfo->value.integer.min = 0; 882 uinfo->value.integer.max = 1; 883 return 0; 884} 885 886static int lx_control_playback_get(struct snd_kcontrol *kcontrol, 887 struct snd_ctl_elem_value *ucontrol) 888{ 889 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 890 ucontrol->value.integer.value[0] = chip->playback_mute; 891 return 0; 892} 893 894static int lx_control_playback_put(struct snd_kcontrol *kcontrol, 895 struct snd_ctl_elem_value *ucontrol) 896{ 897 struct lx6464es *chip = snd_kcontrol_chip(kcontrol); 898 int changed = 0; 899 int current_value = chip->playback_mute; 900 901 if (current_value != ucontrol->value.integer.value[0]) { 902 lx_level_unmute(chip, 0, !current_value); 903 chip->playback_mute = !current_value; 904 changed = 1; 905 } 906 return changed; 907} 908 909static struct snd_kcontrol_new lx_control_playback_switch __devinitdata = { 910 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 911 .name = "PCM Playback Switch", 912 .index = 0, 913 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 914 .private_value = 0, 915 .info = lx_control_playback_info, 916 .get = lx_control_playback_get, 917 .put = lx_control_playback_put 918}; 919 920 921 922static void lx_proc_levels_read(struct snd_info_entry *entry, 923 struct snd_info_buffer *buffer) 924{ 925 u32 levels[64]; 926 int err; 927 int i, j; 928 struct lx6464es *chip = entry->private_data; 929 930 snd_iprintf(buffer, "capture levels:\n"); 931 err = lx_level_peaks(chip, 1, 64, levels); 932 if (err < 0) 933 return; 934 935 for (i = 0; i != 8; ++i) { 936 for (j = 0; j != 8; ++j) 937 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 938 snd_iprintf(buffer, "\n"); 939 } 940 941 snd_iprintf(buffer, "\nplayback levels:\n"); 942 943 err = lx_level_peaks(chip, 0, 64, levels); 944 if (err < 0) 945 return; 946 947 for (i = 0; i != 8; ++i) { 948 for (j = 0; j != 8; ++j) 949 snd_iprintf(buffer, "%08x ", levels[i*8+j]); 950 snd_iprintf(buffer, "\n"); 951 } 952 953 snd_iprintf(buffer, "\n"); 954} 955 956static int __devinit lx_proc_create(struct snd_card *card, struct lx6464es *chip) 957{ 958 struct snd_info_entry *entry; 959 int err = snd_card_proc_new(card, "levels", &entry); 960 if (err < 0) 961 return err; 962 963 snd_info_set_text_ops(entry, chip, lx_proc_levels_read); 964 return 0; 965} 966 967 968static int __devinit snd_lx6464es_create(struct snd_card *card, 969 struct pci_dev *pci, 970 struct lx6464es **rchip) 971{ 972 struct lx6464es *chip; 973 int err; 974 975 static struct snd_device_ops ops = { 976 .dev_free = snd_lx6464es_dev_free, 977 }; 978 979 snd_printdd("->snd_lx6464es_create\n"); 980 981 *rchip = NULL; 982 983 /* enable PCI device */ 984 err = pci_enable_device(pci); 985 if (err < 0) 986 return err; 987 988 pci_set_master(pci); 989 990 /* check if we can restrict PCI DMA transfers to 32 bits */ 991 err = pci_set_dma_mask(pci, DMA_BIT_MASK(32)); 992 if (err < 0) { 993 snd_printk(KERN_ERR "architecture does not support " 994 "32bit PCI busmaster DMA\n"); 995 pci_disable_device(pci); 996 return -ENXIO; 997 } 998 999 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 1000 if (chip == NULL) { 1001 err = -ENOMEM; 1002 goto alloc_failed; 1003 } 1004 1005 chip->card = card; 1006 chip->pci = pci; 1007 chip->irq = -1; 1008 1009 /* initialize synchronization structs */ 1010 spin_lock_init(&chip->lock); 1011 spin_lock_init(&chip->msg_lock); 1012 mutex_init(&chip->setup_mutex); 1013 tasklet_init(&chip->trigger_tasklet, lx_trigger_tasklet, 1014 (unsigned long)chip); 1015 tasklet_init(&chip->tasklet_capture, lx_tasklet_capture, 1016 (unsigned long)chip); 1017 tasklet_init(&chip->tasklet_playback, lx_tasklet_playback, 1018 (unsigned long)chip); 1019 1020 /* request resources */ 1021 err = pci_request_regions(pci, card_name); 1022 if (err < 0) 1023 goto request_regions_failed; 1024 1025 /* plx port */ 1026 chip->port_plx = pci_resource_start(pci, 1); 1027 chip->port_plx_remapped = ioport_map(chip->port_plx, 1028 pci_resource_len(pci, 1)); 1029 1030 /* dsp port */ 1031 chip->port_dsp_bar = pci_ioremap_bar(pci, 2); 1032 1033 err = request_irq(pci->irq, lx_interrupt, IRQF_SHARED, 1034 card_name, chip); 1035 if (err) { 1036 snd_printk(KERN_ERR LXP "unable to grab IRQ %d\n", pci->irq); 1037 goto request_irq_failed; 1038 } 1039 chip->irq = pci->irq; 1040 1041 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 1042 if (err < 0) 1043 goto device_new_failed; 1044 1045 err = lx_init_dsp(chip); 1046 if (err < 0) { 1047 snd_printk(KERN_ERR LXP "error during DSP initialization\n"); 1048 return err; 1049 } 1050 1051 err = lx_pcm_create(chip); 1052 if (err < 0) 1053 return err; 1054 1055 err = lx_proc_create(card, chip); 1056 if (err < 0) 1057 return err; 1058 1059 err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch, 1060 chip)); 1061 if (err < 0) 1062 return err; 1063 1064 snd_card_set_dev(card, &pci->dev); 1065 1066 *rchip = chip; 1067 return 0; 1068 1069device_new_failed: 1070 free_irq(pci->irq, chip); 1071 1072request_irq_failed: 1073 pci_release_regions(pci); 1074 1075request_regions_failed: 1076 kfree(chip); 1077 1078alloc_failed: 1079 pci_disable_device(pci); 1080 1081 return err; 1082} 1083 1084static int __devinit snd_lx6464es_probe(struct pci_dev *pci, 1085 const struct pci_device_id *pci_id) 1086{ 1087 static int dev; 1088 struct snd_card *card; 1089 struct lx6464es *chip; 1090 int err; 1091 1092 snd_printdd("->snd_lx6464es_probe\n"); 1093 1094 if (dev >= SNDRV_CARDS) 1095 return -ENODEV; 1096 if (!enable[dev]) { 1097 dev++; 1098 return -ENOENT; 1099 } 1100 1101 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); 1102 if (err < 0) 1103 return err; 1104 1105 err = snd_lx6464es_create(card, pci, &chip); 1106 if (err < 0) { 1107 snd_printk(KERN_ERR LXP "error during snd_lx6464es_create\n"); 1108 goto out_free; 1109 } 1110 1111 strcpy(card->driver, "lx6464es"); 1112 strcpy(card->shortname, "Digigram LX6464ES"); 1113 sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i", 1114 card->shortname, chip->port_plx, 1115 chip->port_dsp_bar, chip->irq); 1116 1117 err = snd_card_register(card); 1118 if (err < 0) 1119 goto out_free; 1120 1121 snd_printdd(LXP "initialization successful\n"); 1122 pci_set_drvdata(pci, card); 1123 dev++; 1124 return 0; 1125 1126out_free: 1127 snd_card_free(card); 1128 return err; 1129 1130} 1131 1132static void __devexit snd_lx6464es_remove(struct pci_dev *pci) 1133{ 1134 snd_card_free(pci_get_drvdata(pci)); 1135 pci_set_drvdata(pci, NULL); 1136} 1137 1138 1139static struct pci_driver driver = { 1140 .name = "Digigram LX6464ES", 1141 .id_table = snd_lx6464es_ids, 1142 .probe = snd_lx6464es_probe, 1143 .remove = __devexit_p(snd_lx6464es_remove), 1144}; 1145 1146 1147/* module initialization */ 1148static int __init mod_init(void) 1149{ 1150 return pci_register_driver(&driver); 1151} 1152 1153static void __exit mod_exit(void) 1154{ 1155 pci_unregister_driver(&driver); 1156} 1157 1158module_init(mod_init); 1159module_exit(mod_exit); 1160