1 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License as published by 4 * the Free Software Foundation; either version 2 of the License, or 5 * (at your option) any later version. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU Library General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 15 */ 16 17 /* 18 * Vortex PCM ALSA driver. 19 * 20 * Supports ADB and WT DMA. Unfortunately, WT channels do not run yet. 21 * It remains stuck,and DMA transfers do not happen. 22 */ 23 #include <sound/asoundef.h> 24 #include <sound/driver.h> 25 #include <linux/time.h> 26 #include <sound/core.h> 27 #include <sound/pcm.h> 28 #include <sound/pcm_params.h> 29 #include "au88x0.h" 30 31 #define VORTEX_PCM_TYPE(x) (x->name[40]) 32 33 /* hardware definition */ 34 static struct snd_pcm_hardware snd_vortex_playback_hw_adb = { 35 .info = 36 (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */ 37 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED | 38 SNDRV_PCM_INFO_MMAP_VALID), 39 .formats = 40 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 | 41 SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW, 42 .rates = SNDRV_PCM_RATE_CONTINUOUS, 43 .rate_min = 5000, 44 .rate_max = 48000, 45 .channels_min = 1, 46 #ifdef CHIP_AU8830 47 .channels_max = 4, 48 #else 49 .channels_max = 2, 50 #endif 51 .buffer_bytes_max = 0x10000, 52 .period_bytes_min = 0x1, 53 .period_bytes_max = 0x1000, 54 .periods_min = 2, 55 .periods_max = 32, 56 }; 57 58 #ifndef CHIP_AU8820 59 static struct snd_pcm_hardware snd_vortex_playback_hw_a3d = { 60 .info = 61 (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */ 62 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED | 63 SNDRV_PCM_INFO_MMAP_VALID), 64 .formats = 65 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 | 66 SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW, 67 .rates = SNDRV_PCM_RATE_CONTINUOUS, 68 .rate_min = 5000, 69 .rate_max = 48000, 70 .channels_min = 1, 71 .channels_max = 1, 72 .buffer_bytes_max = 0x10000, 73 .period_bytes_min = 0x100, 74 .period_bytes_max = 0x1000, 75 .periods_min = 2, 76 .periods_max = 64, 77 }; 78 #endif 79 static struct snd_pcm_hardware snd_vortex_playback_hw_spdif = { 80 .info = 81 (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */ 82 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED | 83 SNDRV_PCM_INFO_MMAP_VALID), 84 .formats = 85 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 | 86 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | SNDRV_PCM_FMTBIT_MU_LAW | 87 SNDRV_PCM_FMTBIT_A_LAW, 88 .rates = 89 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, 90 .rate_min = 32000, 91 .rate_max = 48000, 92 .channels_min = 1, 93 .channels_max = 2, 94 .buffer_bytes_max = 0x10000, 95 .period_bytes_min = 0x100, 96 .period_bytes_max = 0x1000, 97 .periods_min = 2, 98 .periods_max = 64, 99 }; 100 101 #ifndef CHIP_AU8810 102 static struct snd_pcm_hardware snd_vortex_playback_hw_wt = { 103 .info = (SNDRV_PCM_INFO_MMAP | 104 SNDRV_PCM_INFO_INTERLEAVED | 105 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID), 106 .formats = SNDRV_PCM_FMTBIT_S16_LE, 107 .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS, // SNDRV_PCM_RATE_48000, 108 .rate_min = 8000, 109 .rate_max = 48000, 110 .channels_min = 1, 111 .channels_max = 2, 112 .buffer_bytes_max = 0x10000, 113 .period_bytes_min = 0x0400, 114 .period_bytes_max = 0x1000, 115 .periods_min = 2, 116 .periods_max = 64, 117 }; 118 #endif 119 /* open callback */ 120 static int snd_vortex_pcm_open(struct snd_pcm_substream *substream) 121 { 122 vortex_t *vortex = snd_pcm_substream_chip(substream); 123 struct snd_pcm_runtime *runtime = substream->runtime; 124 int err; 125 126 /* Force equal size periods */ 127 if ((err = 128 snd_pcm_hw_constraint_integer(runtime, 129 SNDRV_PCM_HW_PARAM_PERIODS)) < 0) 130 return err; 131 /* Avoid PAGE_SIZE boundary to fall inside of a period. */ 132 if ((err = 133 snd_pcm_hw_constraint_pow2(runtime, 0, 134 SNDRV_PCM_HW_PARAM_PERIOD_BYTES)) < 0) 135 return err; 136 137 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) { 138 #ifndef CHIP_AU8820 139 if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_A3D) { 140 runtime->hw = snd_vortex_playback_hw_a3d; 141 } 142 #endif 143 if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_SPDIF) { 144 runtime->hw = snd_vortex_playback_hw_spdif; 145 switch (vortex->spdif_sr) { 146 case 32000: 147 runtime->hw.rates = SNDRV_PCM_RATE_32000; 148 break; 149 case 44100: 150 runtime->hw.rates = SNDRV_PCM_RATE_44100; 151 break; 152 case 48000: 153 runtime->hw.rates = SNDRV_PCM_RATE_48000; 154 break; 155 } 156 } 157 if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB 158 || VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_I2S) 159 runtime->hw = snd_vortex_playback_hw_adb; 160 substream->runtime->private_data = NULL; 161 } 162 #ifndef CHIP_AU8810 163 else { 164 runtime->hw = snd_vortex_playback_hw_wt; 165 substream->runtime->private_data = NULL; 166 } 167 #endif 168 return 0; 169 } 170 171 /* close callback */ 172 static int snd_vortex_pcm_close(struct snd_pcm_substream *substream) 173 { 174 //vortex_t *chip = snd_pcm_substream_chip(substream); 175 stream_t *stream = (stream_t *) substream->runtime->private_data; 176 177 // the hardware-specific codes will be here 178 if (stream != NULL) { 179 stream->substream = NULL; 180 stream->nr_ch = 0; 181 } 182 substream->runtime->private_data = NULL; 183 return 0; 184 } 185 186 /* hw_params callback */ 187 static int 188 snd_vortex_pcm_hw_params(struct snd_pcm_substream *substream, 189 struct snd_pcm_hw_params *hw_params) 190 { 191 vortex_t *chip = snd_pcm_substream_chip(substream); 192 stream_t *stream = (stream_t *) (substream->runtime->private_data); 193 struct snd_sg_buf *sgbuf; 194 int err; 195 196 // Alloc buffer memory. 197 err = 198 snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 199 if (err < 0) { 200 printk(KERN_ERR "Vortex: pcm page alloc failed!\n"); 201 return err; 202 } 203 //sgbuf = (struct snd_sg_buf *) substream->runtime->dma_private; 204 sgbuf = snd_pcm_substream_sgbuf(substream); 205 /* 206 printk(KERN_INFO "Vortex: periods %d, period_bytes %d, channels = %d\n", params_periods(hw_params), 207 params_period_bytes(hw_params), params_channels(hw_params)); 208 */ 209 spin_lock_irq(&chip->lock); 210 // Make audio routes and config buffer DMA. 211 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) { 212 int dma, type = VORTEX_PCM_TYPE(substream->pcm); 213 /* Dealloc any routes. */ 214 if (stream != NULL) 215 vortex_adb_allocroute(chip, stream->dma, 216 stream->nr_ch, stream->dir, 217 stream->type); 218 /* Alloc routes. */ 219 dma = 220 vortex_adb_allocroute(chip, -1, 221 params_channels(hw_params), 222 substream->stream, type); 223 if (dma < 0) { 224 spin_unlock_irq(&chip->lock); 225 return dma; 226 } 227 stream = substream->runtime->private_data = &chip->dma_adb[dma]; 228 stream->substream = substream; 229 /* Setup Buffers. */ 230 vortex_adbdma_setbuffers(chip, dma, sgbuf, 231 params_period_bytes(hw_params), 232 params_periods(hw_params)); 233 } 234 #ifndef CHIP_AU8810 235 else { 236 /* if (stream != NULL) 237 vortex_wt_allocroute(chip, substream->number, 0); */ 238 vortex_wt_allocroute(chip, substream->number, 239 params_channels(hw_params)); 240 stream = substream->runtime->private_data = 241 &chip->dma_wt[substream->number]; 242 stream->dma = substream->number; 243 stream->substream = substream; 244 vortex_wtdma_setbuffers(chip, substream->number, sgbuf, 245 params_period_bytes(hw_params), 246 params_periods(hw_params)); 247 } 248 #endif 249 spin_unlock_irq(&chip->lock); 250 return 0; 251 } 252 253 /* hw_free callback */ 254 static int snd_vortex_pcm_hw_free(struct snd_pcm_substream *substream) 255 { 256 vortex_t *chip = snd_pcm_substream_chip(substream); 257 stream_t *stream = (stream_t *) (substream->runtime->private_data); 258 259 spin_lock_irq(&chip->lock); 260 // Delete audio routes. 261 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) { 262 if (stream != NULL) 263 vortex_adb_allocroute(chip, stream->dma, 264 stream->nr_ch, stream->dir, 265 stream->type); 266 } 267 #ifndef CHIP_AU8810 268 else { 269 if (stream != NULL) 270 vortex_wt_allocroute(chip, stream->dma, 0); 271 } 272 #endif 273 substream->runtime->private_data = NULL; 274 spin_unlock_irq(&chip->lock); 275 276 return snd_pcm_lib_free_pages(substream); 277 } 278 279 /* prepare callback */ 280 static int snd_vortex_pcm_prepare(struct snd_pcm_substream *substream) 281 { 282 vortex_t *chip = snd_pcm_substream_chip(substream); 283 struct snd_pcm_runtime *runtime = substream->runtime; 284 stream_t *stream = (stream_t *) substream->runtime->private_data; 285 int dma = stream->dma, fmt, dir; 286 287 // set up the hardware with the current configuration. 288 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 289 dir = 1; 290 else 291 dir = 0; 292 fmt = vortex_alsafmt_aspfmt(runtime->format); 293 spin_lock_irq(&chip->lock); 294 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) { 295 vortex_adbdma_setmode(chip, dma, 1, dir, fmt, 0 /*? */ , 296 0); 297 vortex_adbdma_setstartbuffer(chip, dma, 0); 298 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_SPDIF) 299 vortex_adb_setsrc(chip, dma, runtime->rate, dir); 300 } 301 #ifndef CHIP_AU8810 302 else { 303 vortex_wtdma_setmode(chip, dma, 1, fmt, 0, 0); 304 // FIXME: Set rate (i guess using vortex_wt_writereg() somehow). 305 vortex_wtdma_setstartbuffer(chip, dma, 0); 306 } 307 #endif 308 spin_unlock_irq(&chip->lock); 309 return 0; 310 } 311 312 /* trigger callback */ 313 static int snd_vortex_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 314 { 315 vortex_t *chip = snd_pcm_substream_chip(substream); 316 stream_t *stream = (stream_t *) substream->runtime->private_data; 317 int dma = stream->dma; 318 319 spin_lock(&chip->lock); 320 switch (cmd) { 321 case SNDRV_PCM_TRIGGER_START: 322 // do something to start the PCM engine 323 //printk(KERN_INFO "vortex: start %d\n", dma); 324 stream->fifo_enabled = 1; 325 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) { 326 vortex_adbdma_resetup(chip, dma); 327 vortex_adbdma_startfifo(chip, dma); 328 } 329 #ifndef CHIP_AU8810 330 else { 331 printk(KERN_INFO "vortex: wt start %d\n", dma); 332 vortex_wtdma_startfifo(chip, dma); 333 } 334 #endif 335 break; 336 case SNDRV_PCM_TRIGGER_STOP: 337 // do something to stop the PCM engine 338 //printk(KERN_INFO "vortex: stop %d\n", dma); 339 stream->fifo_enabled = 0; 340 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) 341 vortex_adbdma_pausefifo(chip, dma); 342 //vortex_adbdma_stopfifo(chip, dma); 343 #ifndef CHIP_AU8810 344 else { 345 printk(KERN_INFO "vortex: wt stop %d\n", dma); 346 vortex_wtdma_stopfifo(chip, dma); 347 } 348 #endif 349 break; 350 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 351 //printk(KERN_INFO "vortex: pause %d\n", dma); 352 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) 353 vortex_adbdma_pausefifo(chip, dma); 354 #ifndef CHIP_AU8810 355 else 356 vortex_wtdma_pausefifo(chip, dma); 357 #endif 358 break; 359 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 360 //printk(KERN_INFO "vortex: resume %d\n", dma); 361 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) 362 vortex_adbdma_resumefifo(chip, dma); 363 #ifndef CHIP_AU8810 364 else 365 vortex_wtdma_resumefifo(chip, dma); 366 #endif 367 break; 368 default: 369 spin_unlock(&chip->lock); 370 return -EINVAL; 371 } 372 spin_unlock(&chip->lock); 373 return 0; 374 } 375 376 /* pointer callback */ 377 static snd_pcm_uframes_t snd_vortex_pcm_pointer(struct snd_pcm_substream *substream) 378 { 379 vortex_t *chip = snd_pcm_substream_chip(substream); 380 stream_t *stream = (stream_t *) substream->runtime->private_data; 381 int dma = stream->dma; 382 snd_pcm_uframes_t current_ptr = 0; 383 384 spin_lock(&chip->lock); 385 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) 386 current_ptr = vortex_adbdma_getlinearpos(chip, dma); 387 #ifndef CHIP_AU8810 388 else 389 current_ptr = vortex_wtdma_getlinearpos(chip, dma); 390 #endif 391 //printk(KERN_INFO "vortex: pointer = 0x%x\n", current_ptr); 392 spin_unlock(&chip->lock); 393 return (bytes_to_frames(substream->runtime, current_ptr)); 394 } 395 396 /* Page callback. */ 397 /* 398 static struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigned long offset) { 399 400 401 } 402 */ 403 /* operators */ 404 static struct snd_pcm_ops snd_vortex_playback_ops = { 405 .open = snd_vortex_pcm_open, 406 .close = snd_vortex_pcm_close, 407 .ioctl = snd_pcm_lib_ioctl, 408 .hw_params = snd_vortex_pcm_hw_params, 409 .hw_free = snd_vortex_pcm_hw_free, 410 .prepare = snd_vortex_pcm_prepare, 411 .trigger = snd_vortex_pcm_trigger, 412 .pointer = snd_vortex_pcm_pointer, 413 .page = snd_pcm_sgbuf_ops_page, 414 }; 415 416 /* 417 * definitions of capture are omitted here... 418 */ 419 420 static char *vortex_pcm_prettyname[VORTEX_PCM_LAST] = { 421 "AU88x0 ADB", 422 "AU88x0 SPDIF", 423 "AU88x0 A3D", 424 "AU88x0 WT", 425 "AU88x0 I2S", 426 }; 427 static char *vortex_pcm_name[VORTEX_PCM_LAST] = { 428 "adb", 429 "spdif", 430 "a3d", 431 "wt", 432 "i2s", 433 }; 434 435 /* SPDIF kcontrol */ 436 437 static int snd_vortex_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 438 { 439 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 440 uinfo->count = 1; 441 return 0; 442 } 443 444 static int snd_vortex_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 445 { 446 ucontrol->value.iec958.status[0] = 0xff; 447 ucontrol->value.iec958.status[1] = 0xff; 448 ucontrol->value.iec958.status[2] = 0xff; 449 ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS; 450 return 0; 451 } 452 453 static int snd_vortex_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 454 { 455 vortex_t *vortex = snd_kcontrol_chip(kcontrol); 456 ucontrol->value.iec958.status[0] = 0x00; 457 ucontrol->value.iec958.status[1] = IEC958_AES1_CON_ORIGINAL|IEC958_AES1_CON_DIGDIGCONV_ID; 458 ucontrol->value.iec958.status[2] = 0x00; 459 switch (vortex->spdif_sr) { 460 case 32000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_32000; break; 461 case 44100: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_44100; break; 462 case 48000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_48000; break; 463 } 464 return 0; 465 } 466 467 static int snd_vortex_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 468 { 469 vortex_t *vortex = snd_kcontrol_chip(kcontrol); 470 int spdif_sr = 48000; 471 switch (ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) { 472 case IEC958_AES3_CON_FS_32000: spdif_sr = 32000; break; 473 case IEC958_AES3_CON_FS_44100: spdif_sr = 44100; break; 474 case IEC958_AES3_CON_FS_48000: spdif_sr = 48000; break; 475 } 476 if (spdif_sr == vortex->spdif_sr) 477 return 0; 478 vortex->spdif_sr = spdif_sr; 479 vortex_spdif_init(vortex, vortex->spdif_sr, 1); 480 return 1; 481 } 482 483 /* spdif controls */ 484 static struct snd_kcontrol_new snd_vortex_mixer_spdif[] __devinitdata = { 485 { 486 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 487 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), 488 .info = snd_vortex_spdif_info, 489 .get = snd_vortex_spdif_get, 490 .put = snd_vortex_spdif_put, 491 }, 492 { 493 .access = SNDRV_CTL_ELEM_ACCESS_READ, 494 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 495 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK), 496 .info = snd_vortex_spdif_info, 497 .get = snd_vortex_spdif_mask_get 498 }, 499 }; 500 501 /* create a pcm device */ 502 static int __devinit snd_vortex_new_pcm(vortex_t * chip, int idx, int nr) 503 { 504 struct snd_pcm *pcm; 505 struct snd_kcontrol *kctl; 506 int i; 507 int err, nr_capt; 508 509 if ((chip == 0) || (idx < 0) || (idx > VORTEX_PCM_LAST)) 510 return -ENODEV; 511 512 /* idx indicates which kind of PCM device. ADB, SPDIF, I2S and A3D share the 513 * same dma engine. WT uses it own separate dma engine whcih cant capture. */ 514 if (idx == VORTEX_PCM_ADB) 515 nr_capt = nr; 516 else 517 nr_capt = 0; 518 if ((err = 519 snd_pcm_new(chip->card, vortex_pcm_prettyname[idx], idx, nr, 520 nr_capt, &pcm)) < 0) 521 return err; 522 strcpy(pcm->name, vortex_pcm_name[idx]); 523 chip->pcm[idx] = pcm; 524 // This is an evil hack, but it saves a lot of duplicated code. 525 VORTEX_PCM_TYPE(pcm) = idx; 526 pcm->private_data = chip; 527 /* set operators */ 528 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 529 &snd_vortex_playback_ops); 530 if (idx == VORTEX_PCM_ADB) 531 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 532 &snd_vortex_playback_ops); 533 534 /* pre-allocation of Scatter-Gather buffers */ 535 536 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, 537 snd_dma_pci_data(chip->pci_dev), 538 0x10000, 0x10000); 539 540 if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_SPDIF) { 541 for (i = 0; i < ARRAY_SIZE(snd_vortex_mixer_spdif); i++) { 542 kctl = snd_ctl_new1(&snd_vortex_mixer_spdif[i], chip); 543 if (!kctl) 544 return -ENOMEM; 545 if ((err = snd_ctl_add(chip->card, kctl)) < 0) 546 return err; 547 } 548 } 549 return 0; 550 } 551