Krzysztof Helt | f6c6383 | 2009-01-24 13:35:28 +0100 | [diff] [blame^] | 1 | /********************************************************************* |
| 2 | * |
| 3 | * 2002/06/30 Karsten Wiese: |
| 4 | * removed kernel-version dependencies. |
| 5 | * ripped from linux kernel 2.4.18 (OSS Implementation) by me. |
| 6 | * In the OSS Version, this file is compiled to a separate MODULE, |
| 7 | * that is used by the pinnacle and the classic driver. |
| 8 | * since there is no classic driver for alsa yet (i dont have a classic |
| 9 | * & writing one blindfold is difficult) this file's object is statically |
| 10 | * linked into the pinnacle-driver-module for now. look for the string |
| 11 | * "uncomment this to make this a module again" |
| 12 | * to do guess what. |
| 13 | * |
| 14 | * the following is a copy of the 2.4.18 OSS FREE file-heading comment: |
| 15 | * |
| 16 | * msnd.c - Driver Base |
| 17 | * |
| 18 | * Turtle Beach MultiSound Sound Card Driver for Linux |
| 19 | * |
| 20 | * Copyright (C) 1998 Andrew Veliath |
| 21 | * |
| 22 | * This program is free software; you can redistribute it and/or modify |
| 23 | * it under the terms of the GNU General Public License as published by |
| 24 | * the Free Software Foundation; either version 2 of the License, or |
| 25 | * (at your option) any later version. |
| 26 | * |
| 27 | * This program is distributed in the hope that it will be useful, |
| 28 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 29 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 30 | * GNU General Public License for more details. |
| 31 | * |
| 32 | * You should have received a copy of the GNU General Public License |
| 33 | * along with this program; if not, write to the Free Software |
| 34 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 35 | * |
| 36 | ********************************************************************/ |
| 37 | |
| 38 | #include <linux/kernel.h> |
| 39 | #include <linux/types.h> |
| 40 | #include <linux/interrupt.h> |
| 41 | #include <linux/io.h> |
| 42 | #include <linux/fs.h> |
| 43 | #include <linux/delay.h> |
| 44 | |
| 45 | #include <sound/core.h> |
| 46 | #include <sound/initval.h> |
| 47 | #include <sound/pcm.h> |
| 48 | #include <sound/pcm_params.h> |
| 49 | |
| 50 | #include "msnd.h" |
| 51 | |
| 52 | #define LOGNAME "msnd" |
| 53 | |
| 54 | |
| 55 | void snd_msnd_init_queue(void *base, int start, int size) |
| 56 | { |
| 57 | writew(PCTODSP_BASED(start), base + JQS_wStart); |
| 58 | writew(PCTODSP_OFFSET(size) - 1, base + JQS_wSize); |
| 59 | writew(0, base + JQS_wHead); |
| 60 | writew(0, base + JQS_wTail); |
| 61 | } |
| 62 | EXPORT_SYMBOL(snd_msnd_init_queue); |
| 63 | |
| 64 | static int snd_msnd_wait_TXDE(struct snd_msnd *dev) |
| 65 | { |
| 66 | unsigned int io = dev->io; |
| 67 | int timeout = 1000; |
| 68 | |
| 69 | while (timeout-- > 0) |
| 70 | if (inb(io + HP_ISR) & HPISR_TXDE) |
| 71 | return 0; |
| 72 | |
| 73 | return -EIO; |
| 74 | } |
| 75 | |
| 76 | static int snd_msnd_wait_HC0(struct snd_msnd *dev) |
| 77 | { |
| 78 | unsigned int io = dev->io; |
| 79 | int timeout = 1000; |
| 80 | |
| 81 | while (timeout-- > 0) |
| 82 | if (!(inb(io + HP_CVR) & HPCVR_HC)) |
| 83 | return 0; |
| 84 | |
| 85 | return -EIO; |
| 86 | } |
| 87 | |
| 88 | int snd_msnd_send_dsp_cmd(struct snd_msnd *dev, u8 cmd) |
| 89 | { |
| 90 | unsigned long flags; |
| 91 | |
| 92 | spin_lock_irqsave(&dev->lock, flags); |
| 93 | if (snd_msnd_wait_HC0(dev) == 0) { |
| 94 | outb(cmd, dev->io + HP_CVR); |
| 95 | spin_unlock_irqrestore(&dev->lock, flags); |
| 96 | return 0; |
| 97 | } |
| 98 | spin_unlock_irqrestore(&dev->lock, flags); |
| 99 | |
| 100 | snd_printd(KERN_ERR LOGNAME ": Send DSP command timeout\n"); |
| 101 | |
| 102 | return -EIO; |
| 103 | } |
| 104 | EXPORT_SYMBOL(snd_msnd_send_dsp_cmd); |
| 105 | |
| 106 | int snd_msnd_send_word(struct snd_msnd *dev, unsigned char high, |
| 107 | unsigned char mid, unsigned char low) |
| 108 | { |
| 109 | unsigned int io = dev->io; |
| 110 | |
| 111 | if (snd_msnd_wait_TXDE(dev) == 0) { |
| 112 | outb(high, io + HP_TXH); |
| 113 | outb(mid, io + HP_TXM); |
| 114 | outb(low, io + HP_TXL); |
| 115 | return 0; |
| 116 | } |
| 117 | |
| 118 | snd_printd(KERN_ERR LOGNAME ": Send host word timeout\n"); |
| 119 | |
| 120 | return -EIO; |
| 121 | } |
| 122 | EXPORT_SYMBOL(snd_msnd_send_word); |
| 123 | |
| 124 | int snd_msnd_upload_host(struct snd_msnd *dev, const u8 *bin, int len) |
| 125 | { |
| 126 | int i; |
| 127 | |
| 128 | if (len % 3 != 0) { |
| 129 | snd_printk(KERN_ERR LOGNAME |
| 130 | ": Upload host data not multiple of 3!\n"); |
| 131 | return -EINVAL; |
| 132 | } |
| 133 | |
| 134 | for (i = 0; i < len; i += 3) |
| 135 | if (snd_msnd_send_word(dev, bin[i], bin[i + 1], bin[i + 2])) |
| 136 | return -EIO; |
| 137 | |
| 138 | inb(dev->io + HP_RXL); |
| 139 | inb(dev->io + HP_CVR); |
| 140 | |
| 141 | return 0; |
| 142 | } |
| 143 | EXPORT_SYMBOL(snd_msnd_upload_host); |
| 144 | |
| 145 | int snd_msnd_enable_irq(struct snd_msnd *dev) |
| 146 | { |
| 147 | unsigned long flags; |
| 148 | |
| 149 | if (dev->irq_ref++) |
| 150 | return 0; |
| 151 | |
| 152 | snd_printdd(LOGNAME ": Enabling IRQ\n"); |
| 153 | |
| 154 | spin_lock_irqsave(&dev->lock, flags); |
| 155 | if (snd_msnd_wait_TXDE(dev) == 0) { |
| 156 | outb(inb(dev->io + HP_ICR) | HPICR_TREQ, dev->io + HP_ICR); |
| 157 | if (dev->type == msndClassic) |
| 158 | outb(dev->irqid, dev->io + HP_IRQM); |
| 159 | |
| 160 | outb(inb(dev->io + HP_ICR) & ~HPICR_TREQ, dev->io + HP_ICR); |
| 161 | outb(inb(dev->io + HP_ICR) | HPICR_RREQ, dev->io + HP_ICR); |
| 162 | enable_irq(dev->irq); |
| 163 | snd_msnd_init_queue(dev->DSPQ, dev->dspq_data_buff, |
| 164 | dev->dspq_buff_size); |
| 165 | spin_unlock_irqrestore(&dev->lock, flags); |
| 166 | return 0; |
| 167 | } |
| 168 | spin_unlock_irqrestore(&dev->lock, flags); |
| 169 | |
| 170 | snd_printd(KERN_ERR LOGNAME ": Enable IRQ failed\n"); |
| 171 | |
| 172 | return -EIO; |
| 173 | } |
| 174 | EXPORT_SYMBOL(snd_msnd_enable_irq); |
| 175 | |
| 176 | int snd_msnd_disable_irq(struct snd_msnd *dev) |
| 177 | { |
| 178 | unsigned long flags; |
| 179 | |
| 180 | if (--dev->irq_ref > 0) |
| 181 | return 0; |
| 182 | |
| 183 | if (dev->irq_ref < 0) |
| 184 | snd_printd(KERN_WARNING LOGNAME ": IRQ ref count is %d\n", |
| 185 | dev->irq_ref); |
| 186 | |
| 187 | snd_printdd(LOGNAME ": Disabling IRQ\n"); |
| 188 | |
| 189 | spin_lock_irqsave(&dev->lock, flags); |
| 190 | if (snd_msnd_wait_TXDE(dev) == 0) { |
| 191 | outb(inb(dev->io + HP_ICR) & ~HPICR_RREQ, dev->io + HP_ICR); |
| 192 | if (dev->type == msndClassic) |
| 193 | outb(HPIRQ_NONE, dev->io + HP_IRQM); |
| 194 | disable_irq(dev->irq); |
| 195 | spin_unlock_irqrestore(&dev->lock, flags); |
| 196 | return 0; |
| 197 | } |
| 198 | spin_unlock_irqrestore(&dev->lock, flags); |
| 199 | |
| 200 | snd_printd(KERN_ERR LOGNAME ": Disable IRQ failed\n"); |
| 201 | |
| 202 | return -EIO; |
| 203 | } |
| 204 | EXPORT_SYMBOL(snd_msnd_disable_irq); |
| 205 | |
| 206 | static inline long get_play_delay_jiffies(struct snd_msnd *chip, long size) |
| 207 | { |
| 208 | long tmp = (size * HZ * chip->play_sample_size) / 8; |
| 209 | return tmp / (chip->play_sample_rate * chip->play_channels); |
| 210 | } |
| 211 | |
| 212 | static void snd_msnd_dsp_write_flush(struct snd_msnd *chip) |
| 213 | { |
| 214 | if (!(chip->mode & FMODE_WRITE) || !test_bit(F_WRITING, &chip->flags)) |
| 215 | return; |
| 216 | set_bit(F_WRITEFLUSH, &chip->flags); |
| 217 | /* interruptible_sleep_on_timeout( |
| 218 | &chip->writeflush, |
| 219 | get_play_delay_jiffies(&chip, chip->DAPF.len));*/ |
| 220 | clear_bit(F_WRITEFLUSH, &chip->flags); |
| 221 | if (!signal_pending(current)) |
| 222 | schedule_timeout_interruptible( |
| 223 | get_play_delay_jiffies(chip, chip->play_period_bytes)); |
| 224 | clear_bit(F_WRITING, &chip->flags); |
| 225 | } |
| 226 | |
| 227 | void snd_msnd_dsp_halt(struct snd_msnd *chip, struct file *file) |
| 228 | { |
| 229 | if ((file ? file->f_mode : chip->mode) & FMODE_READ) { |
| 230 | clear_bit(F_READING, &chip->flags); |
| 231 | snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP); |
| 232 | snd_msnd_disable_irq(chip); |
| 233 | if (file) { |
| 234 | snd_printd(KERN_INFO LOGNAME |
| 235 | ": Stopping read for %p\n", file); |
| 236 | chip->mode &= ~FMODE_READ; |
| 237 | } |
| 238 | clear_bit(F_AUDIO_READ_INUSE, &chip->flags); |
| 239 | } |
| 240 | if ((file ? file->f_mode : chip->mode) & FMODE_WRITE) { |
| 241 | if (test_bit(F_WRITING, &chip->flags)) { |
| 242 | snd_msnd_dsp_write_flush(chip); |
| 243 | snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP); |
| 244 | } |
| 245 | snd_msnd_disable_irq(chip); |
| 246 | if (file) { |
| 247 | snd_printd(KERN_INFO |
| 248 | LOGNAME ": Stopping write for %p\n", file); |
| 249 | chip->mode &= ~FMODE_WRITE; |
| 250 | } |
| 251 | clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags); |
| 252 | } |
| 253 | } |
| 254 | EXPORT_SYMBOL(snd_msnd_dsp_halt); |
| 255 | |
| 256 | |
| 257 | int snd_msnd_DARQ(struct snd_msnd *chip, int bank) |
| 258 | { |
| 259 | int /*size, n,*/ timeout = 3; |
| 260 | u16 wTmp; |
| 261 | /* void *DAQD; */ |
| 262 | |
| 263 | /* Increment the tail and check for queue wrap */ |
| 264 | wTmp = readw(chip->DARQ + JQS_wTail) + PCTODSP_OFFSET(DAQDS__size); |
| 265 | if (wTmp > readw(chip->DARQ + JQS_wSize)) |
| 266 | wTmp = 0; |
| 267 | while (wTmp == readw(chip->DARQ + JQS_wHead) && timeout--) |
| 268 | udelay(1); |
| 269 | |
| 270 | if (chip->capturePeriods == 2) { |
| 271 | void *pDAQ = chip->mappedbase + DARQ_DATA_BUFF + |
| 272 | bank * DAQDS__size + DAQDS_wStart; |
| 273 | unsigned short offset = 0x3000 + chip->capturePeriodBytes; |
| 274 | |
| 275 | if (readw(pDAQ) != PCTODSP_BASED(0x3000)) |
| 276 | offset = 0x3000; |
| 277 | writew(PCTODSP_BASED(offset), pDAQ); |
| 278 | } |
| 279 | |
| 280 | writew(wTmp, chip->DARQ + JQS_wTail); |
| 281 | |
| 282 | #if 0 |
| 283 | /* Get our digital audio queue struct */ |
| 284 | DAQD = bank * DAQDS__size + chip->mappedbase + DARQ_DATA_BUFF; |
| 285 | |
| 286 | /* Get length of data */ |
| 287 | size = readw(DAQD + DAQDS_wSize); |
| 288 | |
| 289 | /* Read data from the head (unprotected bank 1 access okay |
| 290 | since this is only called inside an interrupt) */ |
| 291 | outb(HPBLKSEL_1, chip->io + HP_BLKS); |
| 292 | n = msnd_fifo_write(&chip->DARF, |
| 293 | (char *)(chip->base + bank * DAR_BUFF_SIZE), |
| 294 | size, 0); |
| 295 | if (n <= 0) { |
| 296 | outb(HPBLKSEL_0, chip->io + HP_BLKS); |
| 297 | return n; |
| 298 | } |
| 299 | outb(HPBLKSEL_0, chip->io + HP_BLKS); |
| 300 | #endif |
| 301 | |
| 302 | return 1; |
| 303 | } |
| 304 | EXPORT_SYMBOL(snd_msnd_DARQ); |
| 305 | |
| 306 | int snd_msnd_DAPQ(struct snd_msnd *chip, int start) |
| 307 | { |
| 308 | u16 DAPQ_tail; |
| 309 | int protect = start, nbanks = 0; |
| 310 | void *DAQD; |
| 311 | static int play_banks_submitted; |
| 312 | /* unsigned long flags; |
| 313 | spin_lock_irqsave(&chip->lock, flags); not necessary */ |
| 314 | |
| 315 | DAPQ_tail = readw(chip->DAPQ + JQS_wTail); |
| 316 | while (DAPQ_tail != readw(chip->DAPQ + JQS_wHead) || start) { |
| 317 | int bank_num = DAPQ_tail / PCTODSP_OFFSET(DAQDS__size); |
| 318 | |
| 319 | if (start) { |
| 320 | start = 0; |
| 321 | play_banks_submitted = 0; |
| 322 | } |
| 323 | |
| 324 | /* Get our digital audio queue struct */ |
| 325 | DAQD = bank_num * DAQDS__size + chip->mappedbase + |
| 326 | DAPQ_DATA_BUFF; |
| 327 | |
| 328 | /* Write size of this bank */ |
| 329 | writew(chip->play_period_bytes, DAQD + DAQDS_wSize); |
| 330 | if (play_banks_submitted < 3) |
| 331 | ++play_banks_submitted; |
| 332 | else if (chip->playPeriods == 2) { |
| 333 | unsigned short offset = chip->play_period_bytes; |
| 334 | |
| 335 | if (readw(DAQD + DAQDS_wStart) != PCTODSP_BASED(0x0)) |
| 336 | offset = 0; |
| 337 | |
| 338 | writew(PCTODSP_BASED(offset), DAQD + DAQDS_wStart); |
| 339 | } |
| 340 | ++nbanks; |
| 341 | |
| 342 | /* Then advance the tail */ |
| 343 | /* |
| 344 | if (protect) |
| 345 | snd_printd(KERN_INFO "B %X %lX\n", |
| 346 | bank_num, xtime.tv_usec); |
| 347 | */ |
| 348 | |
| 349 | DAPQ_tail = (++bank_num % 3) * PCTODSP_OFFSET(DAQDS__size); |
| 350 | writew(DAPQ_tail, chip->DAPQ + JQS_wTail); |
| 351 | /* Tell the DSP to play the bank */ |
| 352 | snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_START); |
| 353 | if (protect) |
| 354 | if (2 == bank_num) |
| 355 | break; |
| 356 | } |
| 357 | /* |
| 358 | if (protect) |
| 359 | snd_printd(KERN_INFO "%lX\n", xtime.tv_usec); |
| 360 | */ |
| 361 | /* spin_unlock_irqrestore(&chip->lock, flags); not necessary */ |
| 362 | return nbanks; |
| 363 | } |
| 364 | EXPORT_SYMBOL(snd_msnd_DAPQ); |
| 365 | |
| 366 | static void snd_msnd_play_reset_queue(struct snd_msnd *chip, |
| 367 | unsigned int pcm_periods, |
| 368 | unsigned int pcm_count) |
| 369 | { |
| 370 | int n; |
| 371 | void *pDAQ = chip->mappedbase + DAPQ_DATA_BUFF; |
| 372 | |
| 373 | chip->last_playbank = -1; |
| 374 | chip->playLimit = pcm_count * (pcm_periods - 1); |
| 375 | chip->playPeriods = pcm_periods; |
| 376 | writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DAPQ + JQS_wHead); |
| 377 | writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DAPQ + JQS_wTail); |
| 378 | |
| 379 | chip->play_period_bytes = pcm_count; |
| 380 | |
| 381 | for (n = 0; n < pcm_periods; ++n, pDAQ += DAQDS__size) { |
| 382 | writew(PCTODSP_BASED((u32)(pcm_count * n)), |
| 383 | pDAQ + DAQDS_wStart); |
| 384 | writew(0, pDAQ + DAQDS_wSize); |
| 385 | writew(1, pDAQ + DAQDS_wFormat); |
| 386 | writew(chip->play_sample_size, pDAQ + DAQDS_wSampleSize); |
| 387 | writew(chip->play_channels, pDAQ + DAQDS_wChannels); |
| 388 | writew(chip->play_sample_rate, pDAQ + DAQDS_wSampleRate); |
| 389 | writew(HIMT_PLAY_DONE * 0x100 + n, pDAQ + DAQDS_wIntMsg); |
| 390 | writew(n, pDAQ + DAQDS_wFlags); |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | static void snd_msnd_capture_reset_queue(struct snd_msnd *chip, |
| 395 | unsigned int pcm_periods, |
| 396 | unsigned int pcm_count) |
| 397 | { |
| 398 | int n; |
| 399 | void *pDAQ; |
| 400 | /* unsigned long flags; */ |
| 401 | |
| 402 | /* snd_msnd_init_queue(chip->DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE); */ |
| 403 | |
| 404 | chip->last_recbank = 2; |
| 405 | chip->captureLimit = pcm_count * (pcm_periods - 1); |
| 406 | chip->capturePeriods = pcm_periods; |
| 407 | writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DARQ + JQS_wHead); |
| 408 | writew(PCTODSP_OFFSET(chip->last_recbank * DAQDS__size), |
| 409 | chip->DARQ + JQS_wTail); |
| 410 | |
| 411 | #if 0 /* Critical section: bank 1 access. this is how the OSS driver does it:*/ |
| 412 | spin_lock_irqsave(&chip->lock, flags); |
| 413 | outb(HPBLKSEL_1, chip->io + HP_BLKS); |
| 414 | memset_io(chip->mappedbase, 0, DAR_BUFF_SIZE * 3); |
| 415 | outb(HPBLKSEL_0, chip->io + HP_BLKS); |
| 416 | spin_unlock_irqrestore(&chip->lock, flags); |
| 417 | #endif |
| 418 | |
| 419 | chip->capturePeriodBytes = pcm_count; |
| 420 | snd_printdd("snd_msnd_capture_reset_queue() %i\n", pcm_count); |
| 421 | |
| 422 | pDAQ = chip->mappedbase + DARQ_DATA_BUFF; |
| 423 | |
| 424 | for (n = 0; n < pcm_periods; ++n, pDAQ += DAQDS__size) { |
| 425 | u32 tmp = pcm_count * n; |
| 426 | |
| 427 | writew(PCTODSP_BASED(tmp + 0x3000), pDAQ + DAQDS_wStart); |
| 428 | writew(pcm_count, pDAQ + DAQDS_wSize); |
| 429 | writew(1, pDAQ + DAQDS_wFormat); |
| 430 | writew(chip->capture_sample_size, pDAQ + DAQDS_wSampleSize); |
| 431 | writew(chip->capture_channels, pDAQ + DAQDS_wChannels); |
| 432 | writew(chip->capture_sample_rate, pDAQ + DAQDS_wSampleRate); |
| 433 | writew(HIMT_RECORD_DONE * 0x100 + n, pDAQ + DAQDS_wIntMsg); |
| 434 | writew(n, pDAQ + DAQDS_wFlags); |
| 435 | } |
| 436 | } |
| 437 | |
| 438 | static struct snd_pcm_hardware snd_msnd_playback = { |
| 439 | .info = SNDRV_PCM_INFO_MMAP | |
| 440 | SNDRV_PCM_INFO_INTERLEAVED | |
| 441 | SNDRV_PCM_INFO_MMAP_VALID, |
| 442 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
| 443 | .rates = SNDRV_PCM_RATE_8000_48000, |
| 444 | .rate_min = 8000, |
| 445 | .rate_max = 48000, |
| 446 | .channels_min = 1, |
| 447 | .channels_max = 2, |
| 448 | .buffer_bytes_max = 0x3000, |
| 449 | .period_bytes_min = 0x40, |
| 450 | .period_bytes_max = 0x1800, |
| 451 | .periods_min = 2, |
| 452 | .periods_max = 3, |
| 453 | .fifo_size = 0, |
| 454 | }; |
| 455 | |
| 456 | static struct snd_pcm_hardware snd_msnd_capture = { |
| 457 | .info = SNDRV_PCM_INFO_MMAP | |
| 458 | SNDRV_PCM_INFO_INTERLEAVED | |
| 459 | SNDRV_PCM_INFO_MMAP_VALID, |
| 460 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
| 461 | .rates = SNDRV_PCM_RATE_8000_48000, |
| 462 | .rate_min = 8000, |
| 463 | .rate_max = 48000, |
| 464 | .channels_min = 1, |
| 465 | .channels_max = 2, |
| 466 | .buffer_bytes_max = 0x3000, |
| 467 | .period_bytes_min = 0x40, |
| 468 | .period_bytes_max = 0x1800, |
| 469 | .periods_min = 2, |
| 470 | .periods_max = 3, |
| 471 | .fifo_size = 0, |
| 472 | }; |
| 473 | |
| 474 | |
| 475 | static int snd_msnd_playback_open(struct snd_pcm_substream *substream) |
| 476 | { |
| 477 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 478 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 479 | |
| 480 | set_bit(F_AUDIO_WRITE_INUSE, &chip->flags); |
| 481 | clear_bit(F_WRITING, &chip->flags); |
| 482 | snd_msnd_enable_irq(chip); |
| 483 | |
| 484 | runtime->dma_area = chip->mappedbase; |
| 485 | runtime->dma_bytes = 0x3000; |
| 486 | |
| 487 | chip->playback_substream = substream; |
| 488 | runtime->hw = snd_msnd_playback; |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | static int snd_msnd_playback_close(struct snd_pcm_substream *substream) |
| 493 | { |
| 494 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 495 | |
| 496 | snd_msnd_disable_irq(chip); |
| 497 | clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags); |
| 498 | return 0; |
| 499 | } |
| 500 | |
| 501 | |
| 502 | static int snd_msnd_playback_hw_params(struct snd_pcm_substream *substream, |
| 503 | struct snd_pcm_hw_params *params) |
| 504 | { |
| 505 | int i; |
| 506 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 507 | void *pDAQ = chip->mappedbase + DAPQ_DATA_BUFF; |
| 508 | |
| 509 | chip->play_sample_size = snd_pcm_format_width(params_format(params)); |
| 510 | chip->play_channels = params_channels(params); |
| 511 | chip->play_sample_rate = params_rate(params); |
| 512 | |
| 513 | for (i = 0; i < 3; ++i, pDAQ += DAQDS__size) { |
| 514 | writew(chip->play_sample_size, pDAQ + DAQDS_wSampleSize); |
| 515 | writew(chip->play_channels, pDAQ + DAQDS_wChannels); |
| 516 | writew(chip->play_sample_rate, pDAQ + DAQDS_wSampleRate); |
| 517 | } |
| 518 | /* dont do this here: |
| 519 | * snd_msnd_calibrate_adc(chip->play_sample_rate); |
| 520 | */ |
| 521 | |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | static int snd_msnd_playback_prepare(struct snd_pcm_substream *substream) |
| 526 | { |
| 527 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 528 | unsigned int pcm_size = snd_pcm_lib_buffer_bytes(substream); |
| 529 | unsigned int pcm_count = snd_pcm_lib_period_bytes(substream); |
| 530 | unsigned int pcm_periods = pcm_size / pcm_count; |
| 531 | |
| 532 | snd_msnd_play_reset_queue(chip, pcm_periods, pcm_count); |
| 533 | chip->playDMAPos = 0; |
| 534 | return 0; |
| 535 | } |
| 536 | |
| 537 | static int snd_msnd_playback_trigger(struct snd_pcm_substream *substream, |
| 538 | int cmd) |
| 539 | { |
| 540 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 541 | int result = 0; |
| 542 | |
| 543 | if (cmd == SNDRV_PCM_TRIGGER_START) { |
| 544 | snd_printdd("snd_msnd_playback_trigger(START)\n"); |
| 545 | chip->banksPlayed = 0; |
| 546 | set_bit(F_WRITING, &chip->flags); |
| 547 | snd_msnd_DAPQ(chip, 1); |
| 548 | } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
| 549 | snd_printdd("snd_msnd_playback_trigger(STop)\n"); |
| 550 | /* interrupt diagnostic, comment this out later */ |
| 551 | clear_bit(F_WRITING, &chip->flags); |
| 552 | snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP); |
| 553 | } else { |
| 554 | snd_printd(KERN_ERR "snd_msnd_playback_trigger(?????)\n"); |
| 555 | result = -EINVAL; |
| 556 | } |
| 557 | |
| 558 | snd_printdd("snd_msnd_playback_trigger() ENDE\n"); |
| 559 | return result; |
| 560 | } |
| 561 | |
| 562 | static snd_pcm_uframes_t |
| 563 | snd_msnd_playback_pointer(struct snd_pcm_substream *substream) |
| 564 | { |
| 565 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 566 | |
| 567 | return bytes_to_frames(substream->runtime, chip->playDMAPos); |
| 568 | } |
| 569 | |
| 570 | |
| 571 | static struct snd_pcm_ops snd_msnd_playback_ops = { |
| 572 | .open = snd_msnd_playback_open, |
| 573 | .close = snd_msnd_playback_close, |
| 574 | .ioctl = snd_pcm_lib_ioctl, |
| 575 | .hw_params = snd_msnd_playback_hw_params, |
| 576 | .prepare = snd_msnd_playback_prepare, |
| 577 | .trigger = snd_msnd_playback_trigger, |
| 578 | .pointer = snd_msnd_playback_pointer, |
| 579 | }; |
| 580 | |
| 581 | static int snd_msnd_capture_open(struct snd_pcm_substream *substream) |
| 582 | { |
| 583 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 584 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 585 | |
| 586 | set_bit(F_AUDIO_READ_INUSE, &chip->flags); |
| 587 | snd_msnd_enable_irq(chip); |
| 588 | runtime->dma_area = chip->mappedbase + 0x3000; |
| 589 | runtime->dma_bytes = 0x3000; |
| 590 | memset(runtime->dma_area, 0, runtime->dma_bytes); |
| 591 | chip->capture_substream = substream; |
| 592 | runtime->hw = snd_msnd_capture; |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static int snd_msnd_capture_close(struct snd_pcm_substream *substream) |
| 597 | { |
| 598 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 599 | |
| 600 | snd_msnd_disable_irq(chip); |
| 601 | clear_bit(F_AUDIO_READ_INUSE, &chip->flags); |
| 602 | return 0; |
| 603 | } |
| 604 | |
| 605 | static int snd_msnd_capture_prepare(struct snd_pcm_substream *substream) |
| 606 | { |
| 607 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 608 | unsigned int pcm_size = snd_pcm_lib_buffer_bytes(substream); |
| 609 | unsigned int pcm_count = snd_pcm_lib_period_bytes(substream); |
| 610 | unsigned int pcm_periods = pcm_size / pcm_count; |
| 611 | |
| 612 | snd_msnd_capture_reset_queue(chip, pcm_periods, pcm_count); |
| 613 | chip->captureDMAPos = 0; |
| 614 | return 0; |
| 615 | } |
| 616 | |
| 617 | static int snd_msnd_capture_trigger(struct snd_pcm_substream *substream, |
| 618 | int cmd) |
| 619 | { |
| 620 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 621 | |
| 622 | if (cmd == SNDRV_PCM_TRIGGER_START) { |
| 623 | chip->last_recbank = -1; |
| 624 | set_bit(F_READING, &chip->flags); |
| 625 | if (snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_START) == 0) |
| 626 | return 0; |
| 627 | |
| 628 | clear_bit(F_READING, &chip->flags); |
| 629 | } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
| 630 | clear_bit(F_READING, &chip->flags); |
| 631 | snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP); |
| 632 | return 0; |
| 633 | } |
| 634 | return -EINVAL; |
| 635 | } |
| 636 | |
| 637 | |
| 638 | static snd_pcm_uframes_t |
| 639 | snd_msnd_capture_pointer(struct snd_pcm_substream *substream) |
| 640 | { |
| 641 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 642 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 643 | |
| 644 | return bytes_to_frames(runtime, chip->captureDMAPos); |
| 645 | } |
| 646 | |
| 647 | |
| 648 | static int snd_msnd_capture_hw_params(struct snd_pcm_substream *substream, |
| 649 | struct snd_pcm_hw_params *params) |
| 650 | { |
| 651 | int i; |
| 652 | struct snd_msnd *chip = snd_pcm_substream_chip(substream); |
| 653 | void *pDAQ = chip->mappedbase + DARQ_DATA_BUFF; |
| 654 | |
| 655 | chip->capture_sample_size = snd_pcm_format_width(params_format(params)); |
| 656 | chip->capture_channels = params_channels(params); |
| 657 | chip->capture_sample_rate = params_rate(params); |
| 658 | |
| 659 | for (i = 0; i < 3; ++i, pDAQ += DAQDS__size) { |
| 660 | writew(chip->capture_sample_size, pDAQ + DAQDS_wSampleSize); |
| 661 | writew(chip->capture_channels, pDAQ + DAQDS_wChannels); |
| 662 | writew(chip->capture_sample_rate, pDAQ + DAQDS_wSampleRate); |
| 663 | } |
| 664 | return 0; |
| 665 | } |
| 666 | |
| 667 | |
| 668 | static struct snd_pcm_ops snd_msnd_capture_ops = { |
| 669 | .open = snd_msnd_capture_open, |
| 670 | .close = snd_msnd_capture_close, |
| 671 | .ioctl = snd_pcm_lib_ioctl, |
| 672 | .hw_params = snd_msnd_capture_hw_params, |
| 673 | .prepare = snd_msnd_capture_prepare, |
| 674 | .trigger = snd_msnd_capture_trigger, |
| 675 | .pointer = snd_msnd_capture_pointer, |
| 676 | }; |
| 677 | |
| 678 | |
| 679 | int snd_msnd_pcm(struct snd_card *card, int device, |
| 680 | struct snd_pcm **rpcm) |
| 681 | { |
| 682 | struct snd_msnd *chip = card->private_data; |
| 683 | struct snd_pcm *pcm; |
| 684 | int err; |
| 685 | |
| 686 | err = snd_pcm_new(card, "MSNDPINNACLE", device, 1, 1, &pcm); |
| 687 | if (err < 0) |
| 688 | return err; |
| 689 | |
| 690 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_msnd_playback_ops); |
| 691 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_msnd_capture_ops); |
| 692 | |
| 693 | pcm->private_data = chip; |
| 694 | strcpy(pcm->name, "Hurricane"); |
| 695 | |
| 696 | |
| 697 | if (rpcm) |
| 698 | *rpcm = pcm; |
| 699 | return 0; |
| 700 | } |
| 701 | EXPORT_SYMBOL(snd_msnd_pcm); |
| 702 | |