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1// SPDX-License-Identifier: GPL-2.0-or-later2/* -*- linux-c -*- *3 *4 * ALSA driver for the digigram lx6464es interface5 *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_905640 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 0216 /* 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#endif224 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_substream267 *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 else351 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 else399 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 else450 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 else465 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 registers626 * 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 alternate668 * 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_put870};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