1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /********************************************************************* 3 * 4 * 2002/06/30 Karsten Wiese: 5 * removed kernel-version dependencies. 6 * ripped from linux kernel 2.4.18 (OSS Implementation) by me. 7 * In the OSS Version, this file is compiled to a separate MODULE, 8 * that is used by the pinnacle and the classic driver. 9 * since there is no classic driver for alsa yet (i dont have a classic 10 * & writing one blindfold is difficult) this file's object is statically 11 * linked into the pinnacle-driver-module for now. look for the string 12 * "uncomment this to make this a module again" 13 * to do guess what. 14 * 15 * the following is a copy of the 2.4.18 OSS FREE file-heading comment: 16 * 17 * msnd.c - Driver Base 18 * 19 * Turtle Beach MultiSound Sound Card Driver for Linux 20 * 21 * Copyright (C) 1998 Andrew Veliath 22 * 23 ********************************************************************/ 24 25 #include <linux/kernel.h> 26 #include <linux/sched/signal.h> 27 #include <linux/types.h> 28 #include <linux/interrupt.h> 29 #include <linux/io.h> 30 #include <linux/fs.h> 31 #include <linux/delay.h> 32 #include <linux/module.h> 33 34 #include <sound/core.h> 35 #include <sound/initval.h> 36 #include <sound/pcm.h> 37 #include <sound/pcm_params.h> 38 39 #include "msnd.h" 40 41 #define LOGNAME "msnd" 42 43 44 void snd_msnd_init_queue(void __iomem *base, int start, int size) 45 { 46 writew(PCTODSP_BASED(start), base + JQS_wStart); 47 writew(PCTODSP_OFFSET(size) - 1, base + JQS_wSize); 48 writew(0, base + JQS_wHead); 49 writew(0, base + JQS_wTail); 50 } 51 EXPORT_SYMBOL(snd_msnd_init_queue); 52 53 static int snd_msnd_wait_TXDE(struct snd_msnd *dev) 54 { 55 unsigned int io = dev->io; 56 int timeout = 1000; 57 58 while (timeout-- > 0) 59 if (inb(io + HP_ISR) & HPISR_TXDE) 60 return 0; 61 62 return -EIO; 63 } 64 65 static int snd_msnd_wait_HC0(struct snd_msnd *dev) 66 { 67 unsigned int io = dev->io; 68 int timeout = 1000; 69 70 while (timeout-- > 0) 71 if (!(inb(io + HP_CVR) & HPCVR_HC)) 72 return 0; 73 74 return -EIO; 75 } 76 77 int snd_msnd_send_dsp_cmd(struct snd_msnd *dev, u8 cmd) 78 { 79 unsigned long flags; 80 81 spin_lock_irqsave(&dev->lock, flags); 82 if (snd_msnd_wait_HC0(dev) == 0) { 83 outb(cmd, dev->io + HP_CVR); 84 spin_unlock_irqrestore(&dev->lock, flags); 85 return 0; 86 } 87 spin_unlock_irqrestore(&dev->lock, flags); 88 89 snd_printd(KERN_ERR LOGNAME ": Send DSP command timeout\n"); 90 91 return -EIO; 92 } 93 EXPORT_SYMBOL(snd_msnd_send_dsp_cmd); 94 95 int snd_msnd_send_word(struct snd_msnd *dev, unsigned char high, 96 unsigned char mid, unsigned char low) 97 { 98 unsigned int io = dev->io; 99 100 if (snd_msnd_wait_TXDE(dev) == 0) { 101 outb(high, io + HP_TXH); 102 outb(mid, io + HP_TXM); 103 outb(low, io + HP_TXL); 104 return 0; 105 } 106 107 snd_printd(KERN_ERR LOGNAME ": Send host word timeout\n"); 108 109 return -EIO; 110 } 111 EXPORT_SYMBOL(snd_msnd_send_word); 112 113 int snd_msnd_upload_host(struct snd_msnd *dev, const u8 *bin, int len) 114 { 115 int i; 116 117 if (len % 3 != 0) { 118 snd_printk(KERN_ERR LOGNAME 119 ": Upload host data not multiple of 3!\n"); 120 return -EINVAL; 121 } 122 123 for (i = 0; i < len; i += 3) 124 if (snd_msnd_send_word(dev, bin[i], bin[i + 1], bin[i + 2])) 125 return -EIO; 126 127 inb(dev->io + HP_RXL); 128 inb(dev->io + HP_CVR); 129 130 return 0; 131 } 132 EXPORT_SYMBOL(snd_msnd_upload_host); 133 134 int snd_msnd_enable_irq(struct snd_msnd *dev) 135 { 136 unsigned long flags; 137 138 if (dev->irq_ref++) 139 return 0; 140 141 snd_printdd(LOGNAME ": Enabling IRQ\n"); 142 143 spin_lock_irqsave(&dev->lock, flags); 144 if (snd_msnd_wait_TXDE(dev) == 0) { 145 outb(inb(dev->io + HP_ICR) | HPICR_TREQ, dev->io + HP_ICR); 146 if (dev->type == msndClassic) 147 outb(dev->irqid, dev->io + HP_IRQM); 148 149 outb(inb(dev->io + HP_ICR) & ~HPICR_TREQ, dev->io + HP_ICR); 150 outb(inb(dev->io + HP_ICR) | HPICR_RREQ, dev->io + HP_ICR); 151 enable_irq(dev->irq); 152 snd_msnd_init_queue(dev->DSPQ, dev->dspq_data_buff, 153 dev->dspq_buff_size); 154 spin_unlock_irqrestore(&dev->lock, flags); 155 return 0; 156 } 157 spin_unlock_irqrestore(&dev->lock, flags); 158 159 snd_printd(KERN_ERR LOGNAME ": Enable IRQ failed\n"); 160 161 return -EIO; 162 } 163 EXPORT_SYMBOL(snd_msnd_enable_irq); 164 165 int snd_msnd_disable_irq(struct snd_msnd *dev) 166 { 167 unsigned long flags; 168 169 if (--dev->irq_ref > 0) 170 return 0; 171 172 if (dev->irq_ref < 0) 173 snd_printd(KERN_WARNING LOGNAME ": IRQ ref count is %d\n", 174 dev->irq_ref); 175 176 snd_printdd(LOGNAME ": Disabling IRQ\n"); 177 178 spin_lock_irqsave(&dev->lock, flags); 179 if (snd_msnd_wait_TXDE(dev) == 0) { 180 outb(inb(dev->io + HP_ICR) & ~HPICR_RREQ, dev->io + HP_ICR); 181 if (dev->type == msndClassic) 182 outb(HPIRQ_NONE, dev->io + HP_IRQM); 183 disable_irq(dev->irq); 184 spin_unlock_irqrestore(&dev->lock, flags); 185 return 0; 186 } 187 spin_unlock_irqrestore(&dev->lock, flags); 188 189 snd_printd(KERN_ERR LOGNAME ": Disable IRQ failed\n"); 190 191 return -EIO; 192 } 193 EXPORT_SYMBOL(snd_msnd_disable_irq); 194 195 static inline long get_play_delay_jiffies(struct snd_msnd *chip, long size) 196 { 197 long tmp = (size * HZ * chip->play_sample_size) / 8; 198 return tmp / (chip->play_sample_rate * chip->play_channels); 199 } 200 201 static void snd_msnd_dsp_write_flush(struct snd_msnd *chip) 202 { 203 if (!(chip->mode & FMODE_WRITE) || !test_bit(F_WRITING, &chip->flags)) 204 return; 205 set_bit(F_WRITEFLUSH, &chip->flags); 206 /* interruptible_sleep_on_timeout( 207 &chip->writeflush, 208 get_play_delay_jiffies(&chip, chip->DAPF.len));*/ 209 clear_bit(F_WRITEFLUSH, &chip->flags); 210 if (!signal_pending(current)) 211 schedule_timeout_interruptible( 212 get_play_delay_jiffies(chip, chip->play_period_bytes)); 213 clear_bit(F_WRITING, &chip->flags); 214 } 215 216 void snd_msnd_dsp_halt(struct snd_msnd *chip, struct file *file) 217 { 218 if ((file ? file->f_mode : chip->mode) & FMODE_READ) { 219 clear_bit(F_READING, &chip->flags); 220 snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP); 221 snd_msnd_disable_irq(chip); 222 if (file) { 223 snd_printd(KERN_INFO LOGNAME 224 ": Stopping read for %p\n", file); 225 chip->mode &= ~FMODE_READ; 226 } 227 clear_bit(F_AUDIO_READ_INUSE, &chip->flags); 228 } 229 if ((file ? file->f_mode : chip->mode) & FMODE_WRITE) { 230 if (test_bit(F_WRITING, &chip->flags)) { 231 snd_msnd_dsp_write_flush(chip); 232 snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP); 233 } 234 snd_msnd_disable_irq(chip); 235 if (file) { 236 snd_printd(KERN_INFO 237 LOGNAME ": Stopping write for %p\n", file); 238 chip->mode &= ~FMODE_WRITE; 239 } 240 clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags); 241 } 242 } 243 EXPORT_SYMBOL(snd_msnd_dsp_halt); 244 245 246 int snd_msnd_DARQ(struct snd_msnd *chip, int bank) 247 { 248 int /*size, n,*/ timeout = 3; 249 u16 wTmp; 250 /* void *DAQD; */ 251 252 /* Increment the tail and check for queue wrap */ 253 wTmp = readw(chip->DARQ + JQS_wTail) + PCTODSP_OFFSET(DAQDS__size); 254 if (wTmp > readw(chip->DARQ + JQS_wSize)) 255 wTmp = 0; 256 while (wTmp == readw(chip->DARQ + JQS_wHead) && timeout--) 257 udelay(1); 258 259 if (chip->capturePeriods == 2) { 260 void __iomem *pDAQ = chip->mappedbase + DARQ_DATA_BUFF + 261 bank * DAQDS__size + DAQDS_wStart; 262 unsigned short offset = 0x3000 + chip->capturePeriodBytes; 263 264 if (readw(pDAQ) != PCTODSP_BASED(0x3000)) 265 offset = 0x3000; 266 writew(PCTODSP_BASED(offset), pDAQ); 267 } 268 269 writew(wTmp, chip->DARQ + JQS_wTail); 270 271 #if 0 272 /* Get our digital audio queue struct */ 273 DAQD = bank * DAQDS__size + chip->mappedbase + DARQ_DATA_BUFF; 274 275 /* Get length of data */ 276 size = readw(DAQD + DAQDS_wSize); 277 278 /* Read data from the head (unprotected bank 1 access okay 279 since this is only called inside an interrupt) */ 280 outb(HPBLKSEL_1, chip->io + HP_BLKS); 281 n = msnd_fifo_write(&chip->DARF, 282 (char *)(chip->base + bank * DAR_BUFF_SIZE), 283 size, 0); 284 if (n <= 0) { 285 outb(HPBLKSEL_0, chip->io + HP_BLKS); 286 return n; 287 } 288 outb(HPBLKSEL_0, chip->io + HP_BLKS); 289 #endif 290 291 return 1; 292 } 293 EXPORT_SYMBOL(snd_msnd_DARQ); 294 295 int snd_msnd_DAPQ(struct snd_msnd *chip, int start) 296 { 297 u16 DAPQ_tail; 298 int protect = start, nbanks = 0; 299 void __iomem *DAQD; 300 static int play_banks_submitted; 301 /* unsigned long flags; 302 spin_lock_irqsave(&chip->lock, flags); not necessary */ 303 304 DAPQ_tail = readw(chip->DAPQ + JQS_wTail); 305 while (DAPQ_tail != readw(chip->DAPQ + JQS_wHead) || start) { 306 int bank_num = DAPQ_tail / PCTODSP_OFFSET(DAQDS__size); 307 308 if (start) { 309 start = 0; 310 play_banks_submitted = 0; 311 } 312 313 /* Get our digital audio queue struct */ 314 DAQD = bank_num * DAQDS__size + chip->mappedbase + 315 DAPQ_DATA_BUFF; 316 317 /* Write size of this bank */ 318 writew(chip->play_period_bytes, DAQD + DAQDS_wSize); 319 if (play_banks_submitted < 3) 320 ++play_banks_submitted; 321 else if (chip->playPeriods == 2) { 322 unsigned short offset = chip->play_period_bytes; 323 324 if (readw(DAQD + DAQDS_wStart) != PCTODSP_BASED(0x0)) 325 offset = 0; 326 327 writew(PCTODSP_BASED(offset), DAQD + DAQDS_wStart); 328 } 329 ++nbanks; 330 331 /* Then advance the tail */ 332 /* 333 if (protect) 334 snd_printd(KERN_INFO "B %X %lX\n", 335 bank_num, xtime.tv_usec); 336 */ 337 338 DAPQ_tail = (++bank_num % 3) * PCTODSP_OFFSET(DAQDS__size); 339 writew(DAPQ_tail, chip->DAPQ + JQS_wTail); 340 /* Tell the DSP to play the bank */ 341 snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_START); 342 if (protect) 343 if (2 == bank_num) 344 break; 345 } 346 /* 347 if (protect) 348 snd_printd(KERN_INFO "%lX\n", xtime.tv_usec); 349 */ 350 /* spin_unlock_irqrestore(&chip->lock, flags); not necessary */ 351 return nbanks; 352 } 353 EXPORT_SYMBOL(snd_msnd_DAPQ); 354 355 static void snd_msnd_play_reset_queue(struct snd_msnd *chip, 356 unsigned int pcm_periods, 357 unsigned int pcm_count) 358 { 359 int n; 360 void __iomem *pDAQ = chip->mappedbase + DAPQ_DATA_BUFF; 361 362 chip->last_playbank = -1; 363 chip->playLimit = pcm_count * (pcm_periods - 1); 364 chip->playPeriods = pcm_periods; 365 writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DAPQ + JQS_wHead); 366 writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DAPQ + JQS_wTail); 367 368 chip->play_period_bytes = pcm_count; 369 370 for (n = 0; n < pcm_periods; ++n, pDAQ += DAQDS__size) { 371 writew(PCTODSP_BASED((u32)(pcm_count * n)), 372 pDAQ + DAQDS_wStart); 373 writew(0, pDAQ + DAQDS_wSize); 374 writew(1, pDAQ + DAQDS_wFormat); 375 writew(chip->play_sample_size, pDAQ + DAQDS_wSampleSize); 376 writew(chip->play_channels, pDAQ + DAQDS_wChannels); 377 writew(chip->play_sample_rate, pDAQ + DAQDS_wSampleRate); 378 writew(HIMT_PLAY_DONE * 0x100 + n, pDAQ + DAQDS_wIntMsg); 379 writew(n, pDAQ + DAQDS_wFlags); 380 } 381 } 382 383 static void snd_msnd_capture_reset_queue(struct snd_msnd *chip, 384 unsigned int pcm_periods, 385 unsigned int pcm_count) 386 { 387 int n; 388 void __iomem *pDAQ; 389 /* unsigned long flags; */ 390 391 /* snd_msnd_init_queue(chip->DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE); */ 392 393 chip->last_recbank = 2; 394 chip->captureLimit = pcm_count * (pcm_periods - 1); 395 chip->capturePeriods = pcm_periods; 396 writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DARQ + JQS_wHead); 397 writew(PCTODSP_OFFSET(chip->last_recbank * DAQDS__size), 398 chip->DARQ + JQS_wTail); 399 400 #if 0 /* Critical section: bank 1 access. this is how the OSS driver does it:*/ 401 spin_lock_irqsave(&chip->lock, flags); 402 outb(HPBLKSEL_1, chip->io + HP_BLKS); 403 memset_io(chip->mappedbase, 0, DAR_BUFF_SIZE * 3); 404 outb(HPBLKSEL_0, chip->io + HP_BLKS); 405 spin_unlock_irqrestore(&chip->lock, flags); 406 #endif 407 408 chip->capturePeriodBytes = pcm_count; 409 snd_printdd("snd_msnd_capture_reset_queue() %i\n", pcm_count); 410 411 pDAQ = chip->mappedbase + DARQ_DATA_BUFF; 412 413 for (n = 0; n < pcm_periods; ++n, pDAQ += DAQDS__size) { 414 u32 tmp = pcm_count * n; 415 416 writew(PCTODSP_BASED(tmp + 0x3000), pDAQ + DAQDS_wStart); 417 writew(pcm_count, pDAQ + DAQDS_wSize); 418 writew(1, pDAQ + DAQDS_wFormat); 419 writew(chip->capture_sample_size, pDAQ + DAQDS_wSampleSize); 420 writew(chip->capture_channels, pDAQ + DAQDS_wChannels); 421 writew(chip->capture_sample_rate, pDAQ + DAQDS_wSampleRate); 422 writew(HIMT_RECORD_DONE * 0x100 + n, pDAQ + DAQDS_wIntMsg); 423 writew(n, pDAQ + DAQDS_wFlags); 424 } 425 } 426 427 static const struct snd_pcm_hardware snd_msnd_playback = { 428 .info = SNDRV_PCM_INFO_MMAP | 429 SNDRV_PCM_INFO_INTERLEAVED | 430 SNDRV_PCM_INFO_MMAP_VALID | 431 SNDRV_PCM_INFO_BATCH, 432 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 433 .rates = SNDRV_PCM_RATE_8000_48000, 434 .rate_min = 8000, 435 .rate_max = 48000, 436 .channels_min = 1, 437 .channels_max = 2, 438 .buffer_bytes_max = 0x3000, 439 .period_bytes_min = 0x40, 440 .period_bytes_max = 0x1800, 441 .periods_min = 2, 442 .periods_max = 3, 443 .fifo_size = 0, 444 }; 445 446 static const struct snd_pcm_hardware snd_msnd_capture = { 447 .info = SNDRV_PCM_INFO_MMAP | 448 SNDRV_PCM_INFO_INTERLEAVED | 449 SNDRV_PCM_INFO_MMAP_VALID | 450 SNDRV_PCM_INFO_BATCH, 451 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 452 .rates = SNDRV_PCM_RATE_8000_48000, 453 .rate_min = 8000, 454 .rate_max = 48000, 455 .channels_min = 1, 456 .channels_max = 2, 457 .buffer_bytes_max = 0x3000, 458 .period_bytes_min = 0x40, 459 .period_bytes_max = 0x1800, 460 .periods_min = 2, 461 .periods_max = 3, 462 .fifo_size = 0, 463 }; 464 465 466 static int snd_msnd_playback_open(struct snd_pcm_substream *substream) 467 { 468 struct snd_pcm_runtime *runtime = substream->runtime; 469 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 470 471 set_bit(F_AUDIO_WRITE_INUSE, &chip->flags); 472 clear_bit(F_WRITING, &chip->flags); 473 snd_msnd_enable_irq(chip); 474 475 runtime->dma_area = (__force void *)chip->mappedbase; 476 runtime->dma_bytes = 0x3000; 477 478 chip->playback_substream = substream; 479 runtime->hw = snd_msnd_playback; 480 return 0; 481 } 482 483 static int snd_msnd_playback_close(struct snd_pcm_substream *substream) 484 { 485 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 486 487 snd_msnd_disable_irq(chip); 488 clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags); 489 return 0; 490 } 491 492 493 static int snd_msnd_playback_hw_params(struct snd_pcm_substream *substream, 494 struct snd_pcm_hw_params *params) 495 { 496 int i; 497 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 498 void __iomem *pDAQ = chip->mappedbase + DAPQ_DATA_BUFF; 499 500 chip->play_sample_size = snd_pcm_format_width(params_format(params)); 501 chip->play_channels = params_channels(params); 502 chip->play_sample_rate = params_rate(params); 503 504 for (i = 0; i < 3; ++i, pDAQ += DAQDS__size) { 505 writew(chip->play_sample_size, pDAQ + DAQDS_wSampleSize); 506 writew(chip->play_channels, pDAQ + DAQDS_wChannels); 507 writew(chip->play_sample_rate, pDAQ + DAQDS_wSampleRate); 508 } 509 /* dont do this here: 510 * snd_msnd_calibrate_adc(chip->play_sample_rate); 511 */ 512 513 return 0; 514 } 515 516 static int snd_msnd_playback_prepare(struct snd_pcm_substream *substream) 517 { 518 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 519 unsigned int pcm_size = snd_pcm_lib_buffer_bytes(substream); 520 unsigned int pcm_count = snd_pcm_lib_period_bytes(substream); 521 unsigned int pcm_periods = pcm_size / pcm_count; 522 523 snd_msnd_play_reset_queue(chip, pcm_periods, pcm_count); 524 chip->playDMAPos = 0; 525 return 0; 526 } 527 528 static int snd_msnd_playback_trigger(struct snd_pcm_substream *substream, 529 int cmd) 530 { 531 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 532 int result = 0; 533 534 if (cmd == SNDRV_PCM_TRIGGER_START) { 535 snd_printdd("snd_msnd_playback_trigger(START)\n"); 536 chip->banksPlayed = 0; 537 set_bit(F_WRITING, &chip->flags); 538 snd_msnd_DAPQ(chip, 1); 539 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { 540 snd_printdd("snd_msnd_playback_trigger(STop)\n"); 541 /* interrupt diagnostic, comment this out later */ 542 clear_bit(F_WRITING, &chip->flags); 543 snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP); 544 } else { 545 snd_printd(KERN_ERR "snd_msnd_playback_trigger(?????)\n"); 546 result = -EINVAL; 547 } 548 549 snd_printdd("snd_msnd_playback_trigger() ENDE\n"); 550 return result; 551 } 552 553 static snd_pcm_uframes_t 554 snd_msnd_playback_pointer(struct snd_pcm_substream *substream) 555 { 556 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 557 558 return bytes_to_frames(substream->runtime, chip->playDMAPos); 559 } 560 561 562 static const struct snd_pcm_ops snd_msnd_playback_ops = { 563 .open = snd_msnd_playback_open, 564 .close = snd_msnd_playback_close, 565 .hw_params = snd_msnd_playback_hw_params, 566 .prepare = snd_msnd_playback_prepare, 567 .trigger = snd_msnd_playback_trigger, 568 .pointer = snd_msnd_playback_pointer, 569 }; 570 571 static int snd_msnd_capture_open(struct snd_pcm_substream *substream) 572 { 573 struct snd_pcm_runtime *runtime = substream->runtime; 574 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 575 576 set_bit(F_AUDIO_READ_INUSE, &chip->flags); 577 snd_msnd_enable_irq(chip); 578 runtime->dma_area = (__force void *)chip->mappedbase + 0x3000; 579 runtime->dma_bytes = 0x3000; 580 memset(runtime->dma_area, 0, runtime->dma_bytes); 581 chip->capture_substream = substream; 582 runtime->hw = snd_msnd_capture; 583 return 0; 584 } 585 586 static int snd_msnd_capture_close(struct snd_pcm_substream *substream) 587 { 588 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 589 590 snd_msnd_disable_irq(chip); 591 clear_bit(F_AUDIO_READ_INUSE, &chip->flags); 592 return 0; 593 } 594 595 static int snd_msnd_capture_prepare(struct snd_pcm_substream *substream) 596 { 597 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 598 unsigned int pcm_size = snd_pcm_lib_buffer_bytes(substream); 599 unsigned int pcm_count = snd_pcm_lib_period_bytes(substream); 600 unsigned int pcm_periods = pcm_size / pcm_count; 601 602 snd_msnd_capture_reset_queue(chip, pcm_periods, pcm_count); 603 chip->captureDMAPos = 0; 604 return 0; 605 } 606 607 static int snd_msnd_capture_trigger(struct snd_pcm_substream *substream, 608 int cmd) 609 { 610 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 611 612 if (cmd == SNDRV_PCM_TRIGGER_START) { 613 chip->last_recbank = -1; 614 set_bit(F_READING, &chip->flags); 615 if (snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_START) == 0) 616 return 0; 617 618 clear_bit(F_READING, &chip->flags); 619 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { 620 clear_bit(F_READING, &chip->flags); 621 snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP); 622 return 0; 623 } 624 return -EINVAL; 625 } 626 627 628 static snd_pcm_uframes_t 629 snd_msnd_capture_pointer(struct snd_pcm_substream *substream) 630 { 631 struct snd_pcm_runtime *runtime = substream->runtime; 632 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 633 634 return bytes_to_frames(runtime, chip->captureDMAPos); 635 } 636 637 638 static int snd_msnd_capture_hw_params(struct snd_pcm_substream *substream, 639 struct snd_pcm_hw_params *params) 640 { 641 int i; 642 struct snd_msnd *chip = snd_pcm_substream_chip(substream); 643 void __iomem *pDAQ = chip->mappedbase + DARQ_DATA_BUFF; 644 645 chip->capture_sample_size = snd_pcm_format_width(params_format(params)); 646 chip->capture_channels = params_channels(params); 647 chip->capture_sample_rate = params_rate(params); 648 649 for (i = 0; i < 3; ++i, pDAQ += DAQDS__size) { 650 writew(chip->capture_sample_size, pDAQ + DAQDS_wSampleSize); 651 writew(chip->capture_channels, pDAQ + DAQDS_wChannels); 652 writew(chip->capture_sample_rate, pDAQ + DAQDS_wSampleRate); 653 } 654 return 0; 655 } 656 657 658 static const struct snd_pcm_ops snd_msnd_capture_ops = { 659 .open = snd_msnd_capture_open, 660 .close = snd_msnd_capture_close, 661 .hw_params = snd_msnd_capture_hw_params, 662 .prepare = snd_msnd_capture_prepare, 663 .trigger = snd_msnd_capture_trigger, 664 .pointer = snd_msnd_capture_pointer, 665 }; 666 667 668 int snd_msnd_pcm(struct snd_card *card, int device) 669 { 670 struct snd_msnd *chip = card->private_data; 671 struct snd_pcm *pcm; 672 int err; 673 674 err = snd_pcm_new(card, "MSNDPINNACLE", device, 1, 1, &pcm); 675 if (err < 0) 676 return err; 677 678 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_msnd_playback_ops); 679 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_msnd_capture_ops); 680 681 pcm->private_data = chip; 682 strcpy(pcm->name, "Hurricane"); 683 684 return 0; 685 } 686 EXPORT_SYMBOL(snd_msnd_pcm); 687 688 MODULE_DESCRIPTION("Common routines for Turtle Beach Multisound drivers"); 689 MODULE_LICENSE("GPL"); 690 691