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