1 /* 2 * Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si> 3 * Takashi Iwai <tiwai@suse.de> 4 * 5 * SB16ASP/AWE32 CSP control 6 * 7 * CSP microcode loader: 8 * alsa-tools/sb16_csp/ 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 * 24 */ 25 26 #include <linux/delay.h> 27 #include <linux/init.h> 28 #include <linux/slab.h> 29 #include <linux/module.h> 30 #include <sound/core.h> 31 #include <sound/control.h> 32 #include <sound/info.h> 33 #include <sound/sb16_csp.h> 34 #include <sound/initval.h> 35 36 MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>"); 37 MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor"); 38 MODULE_LICENSE("GPL"); 39 MODULE_FIRMWARE("sb16/mulaw_main.csp"); 40 MODULE_FIRMWARE("sb16/alaw_main.csp"); 41 MODULE_FIRMWARE("sb16/ima_adpcm_init.csp"); 42 MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp"); 43 MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp"); 44 45 #ifdef SNDRV_LITTLE_ENDIAN 46 #define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24)) 47 #else 48 #define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24)) 49 #endif 50 51 #define RIFF_HEADER CSP_HDR_VALUE('R', 'I', 'F', 'F') 52 #define CSP__HEADER CSP_HDR_VALUE('C', 'S', 'P', ' ') 53 #define LIST_HEADER CSP_HDR_VALUE('L', 'I', 'S', 'T') 54 #define FUNC_HEADER CSP_HDR_VALUE('f', 'u', 'n', 'c') 55 #define CODE_HEADER CSP_HDR_VALUE('c', 'o', 'd', 'e') 56 #define INIT_HEADER CSP_HDR_VALUE('i', 'n', 'i', 't') 57 #define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n') 58 59 /* 60 * RIFF data format 61 */ 62 struct riff_header { 63 __le32 name; 64 __le32 len; 65 }; 66 67 struct desc_header { 68 struct riff_header info; 69 __le16 func_nr; 70 __le16 VOC_type; 71 __le16 flags_play_rec; 72 __le16 flags_16bit_8bit; 73 __le16 flags_stereo_mono; 74 __le16 flags_rates; 75 }; 76 77 /* 78 * prototypes 79 */ 80 static void snd_sb_csp_free(struct snd_hwdep *hw); 81 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file); 82 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg); 83 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file); 84 85 static int csp_detect(struct snd_sb *chip, int *version); 86 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val); 87 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val); 88 static int read_register(struct snd_sb *chip, unsigned char reg); 89 static int set_mode_register(struct snd_sb *chip, unsigned char mode); 90 static int get_version(struct snd_sb *chip); 91 92 static int snd_sb_csp_riff_load(struct snd_sb_csp * p, 93 struct snd_sb_csp_microcode __user * code); 94 static int snd_sb_csp_unload(struct snd_sb_csp * p); 95 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags); 96 static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode); 97 static int snd_sb_csp_check_version(struct snd_sb_csp * p); 98 99 static int snd_sb_csp_use(struct snd_sb_csp * p); 100 static int snd_sb_csp_unuse(struct snd_sb_csp * p); 101 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels); 102 static int snd_sb_csp_stop(struct snd_sb_csp * p); 103 static int snd_sb_csp_pause(struct snd_sb_csp * p); 104 static int snd_sb_csp_restart(struct snd_sb_csp * p); 105 106 static int snd_sb_qsound_build(struct snd_sb_csp * p); 107 static void snd_sb_qsound_destroy(struct snd_sb_csp * p); 108 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p); 109 110 static int init_proc_entry(struct snd_sb_csp * p, int device); 111 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer); 112 113 /* 114 * Detect CSP chip and create a new instance 115 */ 116 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep) 117 { 118 struct snd_sb_csp *p; 119 int uninitialized_var(version); 120 int err; 121 struct snd_hwdep *hw; 122 123 if (rhwdep) 124 *rhwdep = NULL; 125 126 if (csp_detect(chip, &version)) 127 return -ENODEV; 128 129 if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0) 130 return err; 131 132 if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) { 133 snd_device_free(chip->card, hw); 134 return -ENOMEM; 135 } 136 p->chip = chip; 137 p->version = version; 138 139 /* CSP operators */ 140 p->ops.csp_use = snd_sb_csp_use; 141 p->ops.csp_unuse = snd_sb_csp_unuse; 142 p->ops.csp_autoload = snd_sb_csp_autoload; 143 p->ops.csp_start = snd_sb_csp_start; 144 p->ops.csp_stop = snd_sb_csp_stop; 145 p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer; 146 147 mutex_init(&p->access_mutex); 148 sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f)); 149 hw->iface = SNDRV_HWDEP_IFACE_SB16CSP; 150 hw->private_data = p; 151 hw->private_free = snd_sb_csp_free; 152 153 /* operators - only write/ioctl */ 154 hw->ops.open = snd_sb_csp_open; 155 hw->ops.ioctl = snd_sb_csp_ioctl; 156 hw->ops.release = snd_sb_csp_release; 157 158 /* create a proc entry */ 159 init_proc_entry(p, device); 160 if (rhwdep) 161 *rhwdep = hw; 162 return 0; 163 } 164 165 /* 166 * free_private for hwdep instance 167 */ 168 static void snd_sb_csp_free(struct snd_hwdep *hwdep) 169 { 170 int i; 171 struct snd_sb_csp *p = hwdep->private_data; 172 if (p) { 173 if (p->running & SNDRV_SB_CSP_ST_RUNNING) 174 snd_sb_csp_stop(p); 175 for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i) 176 release_firmware(p->csp_programs[i]); 177 kfree(p); 178 } 179 } 180 181 /* ------------------------------ */ 182 183 /* 184 * open the device exclusively 185 */ 186 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file) 187 { 188 struct snd_sb_csp *p = hw->private_data; 189 return (snd_sb_csp_use(p)); 190 } 191 192 /* 193 * ioctl for hwdep device: 194 */ 195 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg) 196 { 197 struct snd_sb_csp *p = hw->private_data; 198 struct snd_sb_csp_info info; 199 struct snd_sb_csp_start start_info; 200 int err; 201 202 if (snd_BUG_ON(!p)) 203 return -EINVAL; 204 205 if (snd_sb_csp_check_version(p)) 206 return -ENODEV; 207 208 switch (cmd) { 209 /* get information */ 210 case SNDRV_SB_CSP_IOCTL_INFO: 211 memset(&info, 0, sizeof(info)); 212 *info.codec_name = *p->codec_name; 213 info.func_nr = p->func_nr; 214 info.acc_format = p->acc_format; 215 info.acc_channels = p->acc_channels; 216 info.acc_width = p->acc_width; 217 info.acc_rates = p->acc_rates; 218 info.csp_mode = p->mode; 219 info.run_channels = p->run_channels; 220 info.run_width = p->run_width; 221 info.version = p->version; 222 info.state = p->running; 223 if (copy_to_user((void __user *)arg, &info, sizeof(info))) 224 err = -EFAULT; 225 else 226 err = 0; 227 break; 228 229 /* load CSP microcode */ 230 case SNDRV_SB_CSP_IOCTL_LOAD_CODE: 231 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? 232 -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg)); 233 break; 234 case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE: 235 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? 236 -EBUSY : snd_sb_csp_unload(p)); 237 break; 238 239 /* change CSP running state */ 240 case SNDRV_SB_CSP_IOCTL_START: 241 if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info))) 242 err = -EFAULT; 243 else 244 err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels); 245 break; 246 case SNDRV_SB_CSP_IOCTL_STOP: 247 err = snd_sb_csp_stop(p); 248 break; 249 case SNDRV_SB_CSP_IOCTL_PAUSE: 250 err = snd_sb_csp_pause(p); 251 break; 252 case SNDRV_SB_CSP_IOCTL_RESTART: 253 err = snd_sb_csp_restart(p); 254 break; 255 default: 256 err = -ENOTTY; 257 break; 258 } 259 260 return err; 261 } 262 263 /* 264 * close the device 265 */ 266 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file) 267 { 268 struct snd_sb_csp *p = hw->private_data; 269 return (snd_sb_csp_unuse(p)); 270 } 271 272 /* ------------------------------ */ 273 274 /* 275 * acquire device 276 */ 277 static int snd_sb_csp_use(struct snd_sb_csp * p) 278 { 279 mutex_lock(&p->access_mutex); 280 if (p->used) { 281 mutex_unlock(&p->access_mutex); 282 return -EAGAIN; 283 } 284 p->used++; 285 mutex_unlock(&p->access_mutex); 286 287 return 0; 288 289 } 290 291 /* 292 * release device 293 */ 294 static int snd_sb_csp_unuse(struct snd_sb_csp * p) 295 { 296 mutex_lock(&p->access_mutex); 297 p->used--; 298 mutex_unlock(&p->access_mutex); 299 300 return 0; 301 } 302 303 /* 304 * load microcode via ioctl: 305 * code is user-space pointer 306 */ 307 static int snd_sb_csp_riff_load(struct snd_sb_csp * p, 308 struct snd_sb_csp_microcode __user * mcode) 309 { 310 struct snd_sb_csp_mc_header info; 311 312 unsigned char __user *data_ptr; 313 unsigned char __user *data_end; 314 unsigned short func_nr = 0; 315 316 struct riff_header file_h, item_h, code_h; 317 __le32 item_type; 318 struct desc_header funcdesc_h; 319 320 unsigned long flags; 321 int err; 322 323 if (copy_from_user(&info, mcode, sizeof(info))) 324 return -EFAULT; 325 data_ptr = mcode->data; 326 327 if (copy_from_user(&file_h, data_ptr, sizeof(file_h))) 328 return -EFAULT; 329 if ((le32_to_cpu(file_h.name) != RIFF_HEADER) || 330 (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) { 331 snd_printd("%s: Invalid RIFF header\n", __func__); 332 return -EINVAL; 333 } 334 data_ptr += sizeof(file_h); 335 data_end = data_ptr + le32_to_cpu(file_h.len); 336 337 if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) 338 return -EFAULT; 339 if (le32_to_cpu(item_type) != CSP__HEADER) { 340 snd_printd("%s: Invalid RIFF file type\n", __func__); 341 return -EINVAL; 342 } 343 data_ptr += sizeof (item_type); 344 345 for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) { 346 if (copy_from_user(&item_h, data_ptr, sizeof(item_h))) 347 return -EFAULT; 348 data_ptr += sizeof(item_h); 349 if (le32_to_cpu(item_h.name) != LIST_HEADER) 350 continue; 351 352 if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) 353 return -EFAULT; 354 switch (le32_to_cpu(item_type)) { 355 case FUNC_HEADER: 356 if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h))) 357 return -EFAULT; 358 func_nr = le16_to_cpu(funcdesc_h.func_nr); 359 break; 360 case CODE_HEADER: 361 if (func_nr != info.func_req) 362 break; /* not required function, try next */ 363 data_ptr += sizeof(item_type); 364 365 /* destroy QSound mixer element */ 366 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { 367 snd_sb_qsound_destroy(p); 368 } 369 /* Clear all flags */ 370 p->running = 0; 371 p->mode = 0; 372 373 /* load microcode blocks */ 374 for (;;) { 375 if (data_ptr >= data_end) 376 return -EINVAL; 377 if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) 378 return -EFAULT; 379 380 /* init microcode blocks */ 381 if (le32_to_cpu(code_h.name) != INIT_HEADER) 382 break; 383 data_ptr += sizeof(code_h); 384 err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len), 385 SNDRV_SB_CSP_LOAD_INITBLOCK); 386 if (err) 387 return err; 388 data_ptr += le32_to_cpu(code_h.len); 389 } 390 /* main microcode block */ 391 if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) 392 return -EFAULT; 393 394 if (le32_to_cpu(code_h.name) != MAIN_HEADER) { 395 snd_printd("%s: Missing 'main' microcode\n", __func__); 396 return -EINVAL; 397 } 398 data_ptr += sizeof(code_h); 399 err = snd_sb_csp_load_user(p, data_ptr, 400 le32_to_cpu(code_h.len), 0); 401 if (err) 402 return err; 403 404 /* fill in codec header */ 405 strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name)); 406 p->func_nr = func_nr; 407 p->mode = le16_to_cpu(funcdesc_h.flags_play_rec); 408 switch (le16_to_cpu(funcdesc_h.VOC_type)) { 409 case 0x0001: /* QSound decoder */ 410 if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) { 411 if (snd_sb_qsound_build(p) == 0) 412 /* set QSound flag and clear all other mode flags */ 413 p->mode = SNDRV_SB_CSP_MODE_QSOUND; 414 } 415 p->acc_format = 0; 416 break; 417 case 0x0006: /* A Law codec */ 418 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; 419 break; 420 case 0x0007: /* Mu Law codec */ 421 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; 422 break; 423 case 0x0011: /* what Creative thinks is IMA ADPCM codec */ 424 case 0x0200: /* Creative ADPCM codec */ 425 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; 426 break; 427 case 201: /* Text 2 Speech decoder */ 428 /* TODO: Text2Speech handling routines */ 429 p->acc_format = 0; 430 break; 431 case 0x0202: /* Fast Speech 8 codec */ 432 case 0x0203: /* Fast Speech 10 codec */ 433 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL; 434 break; 435 default: /* other codecs are unsupported */ 436 p->acc_format = p->acc_width = p->acc_rates = 0; 437 p->mode = 0; 438 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n", 439 __func__, 440 le16_to_cpu(funcdesc_h.VOC_type)); 441 return -EINVAL; 442 } 443 p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono); 444 p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit); 445 p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates); 446 447 /* Decouple CSP from IRQ and DMAREQ lines */ 448 spin_lock_irqsave(&p->chip->reg_lock, flags); 449 set_mode_register(p->chip, 0xfc); 450 set_mode_register(p->chip, 0x00); 451 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 452 453 /* finished loading successfully */ 454 p->running = SNDRV_SB_CSP_ST_LOADED; /* set LOADED flag */ 455 return 0; 456 } 457 } 458 snd_printd("%s: Function #%d not found\n", __func__, info.func_req); 459 return -EINVAL; 460 } 461 462 /* 463 * unload CSP microcode 464 */ 465 static int snd_sb_csp_unload(struct snd_sb_csp * p) 466 { 467 if (p->running & SNDRV_SB_CSP_ST_RUNNING) 468 return -EBUSY; 469 if (!(p->running & SNDRV_SB_CSP_ST_LOADED)) 470 return -ENXIO; 471 472 /* clear supported formats */ 473 p->acc_format = 0; 474 p->acc_channels = p->acc_width = p->acc_rates = 0; 475 /* destroy QSound mixer element */ 476 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { 477 snd_sb_qsound_destroy(p); 478 } 479 /* clear all flags */ 480 p->running = 0; 481 p->mode = 0; 482 return 0; 483 } 484 485 /* 486 * send command sequence to DSP 487 */ 488 static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size) 489 { 490 int i; 491 for (i = 0; i < size; i++) { 492 if (!snd_sbdsp_command(chip, seq[i])) 493 return -EIO; 494 } 495 return 0; 496 } 497 498 /* 499 * set CSP codec parameter 500 */ 501 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val) 502 { 503 unsigned char dsp_cmd[3]; 504 505 dsp_cmd[0] = 0x05; /* CSP set codec parameter */ 506 dsp_cmd[1] = val; /* Parameter value */ 507 dsp_cmd[2] = par; /* Parameter */ 508 command_seq(chip, dsp_cmd, 3); 509 snd_sbdsp_command(chip, 0x03); /* DSP read? */ 510 if (snd_sbdsp_get_byte(chip) != par) 511 return -EIO; 512 return 0; 513 } 514 515 /* 516 * set CSP register 517 */ 518 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val) 519 { 520 unsigned char dsp_cmd[3]; 521 522 dsp_cmd[0] = 0x0e; /* CSP set register */ 523 dsp_cmd[1] = reg; /* CSP Register */ 524 dsp_cmd[2] = val; /* value */ 525 return command_seq(chip, dsp_cmd, 3); 526 } 527 528 /* 529 * read CSP register 530 * return < 0 -> error 531 */ 532 static int read_register(struct snd_sb *chip, unsigned char reg) 533 { 534 unsigned char dsp_cmd[2]; 535 536 dsp_cmd[0] = 0x0f; /* CSP read register */ 537 dsp_cmd[1] = reg; /* CSP Register */ 538 command_seq(chip, dsp_cmd, 2); 539 return snd_sbdsp_get_byte(chip); /* Read DSP value */ 540 } 541 542 /* 543 * set CSP mode register 544 */ 545 static int set_mode_register(struct snd_sb *chip, unsigned char mode) 546 { 547 unsigned char dsp_cmd[2]; 548 549 dsp_cmd[0] = 0x04; /* CSP set mode register */ 550 dsp_cmd[1] = mode; /* mode */ 551 return command_seq(chip, dsp_cmd, 2); 552 } 553 554 /* 555 * Detect CSP 556 * return 0 if CSP exists. 557 */ 558 static int csp_detect(struct snd_sb *chip, int *version) 559 { 560 unsigned char csp_test1, csp_test2; 561 unsigned long flags; 562 int result = -ENODEV; 563 564 spin_lock_irqsave(&chip->reg_lock, flags); 565 566 set_codec_parameter(chip, 0x00, 0x00); 567 set_mode_register(chip, 0xfc); /* 0xfc = ?? */ 568 569 csp_test1 = read_register(chip, 0x83); 570 set_register(chip, 0x83, ~csp_test1); 571 csp_test2 = read_register(chip, 0x83); 572 if (csp_test2 != (csp_test1 ^ 0xff)) 573 goto __fail; 574 575 set_register(chip, 0x83, csp_test1); 576 csp_test2 = read_register(chip, 0x83); 577 if (csp_test2 != csp_test1) 578 goto __fail; 579 580 set_mode_register(chip, 0x00); /* 0x00 = ? */ 581 582 *version = get_version(chip); 583 snd_sbdsp_reset(chip); /* reset DSP after getversion! */ 584 if (*version >= 0x10 && *version <= 0x1f) 585 result = 0; /* valid version id */ 586 587 __fail: 588 spin_unlock_irqrestore(&chip->reg_lock, flags); 589 return result; 590 } 591 592 /* 593 * get CSP version number 594 */ 595 static int get_version(struct snd_sb *chip) 596 { 597 unsigned char dsp_cmd[2]; 598 599 dsp_cmd[0] = 0x08; /* SB_DSP_!something! */ 600 dsp_cmd[1] = 0x03; /* get chip version id? */ 601 command_seq(chip, dsp_cmd, 2); 602 603 return (snd_sbdsp_get_byte(chip)); 604 } 605 606 /* 607 * check if the CSP version is valid 608 */ 609 static int snd_sb_csp_check_version(struct snd_sb_csp * p) 610 { 611 if (p->version < 0x10 || p->version > 0x1f) { 612 snd_printd("%s: Invalid CSP version: 0x%x\n", __func__, p->version); 613 return 1; 614 } 615 return 0; 616 } 617 618 /* 619 * download microcode to CSP (microcode should have one "main" block). 620 */ 621 static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags) 622 { 623 int status, i; 624 int err; 625 int result = -EIO; 626 unsigned long flags; 627 628 spin_lock_irqsave(&p->chip->reg_lock, flags); 629 snd_sbdsp_command(p->chip, 0x01); /* CSP download command */ 630 if (snd_sbdsp_get_byte(p->chip)) { 631 snd_printd("%s: Download command failed\n", __func__); 632 goto __fail; 633 } 634 /* Send CSP low byte (size - 1) */ 635 snd_sbdsp_command(p->chip, (unsigned char)(size - 1)); 636 /* Send high byte */ 637 snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8)); 638 /* send microcode sequence */ 639 /* load from kernel space */ 640 while (size--) { 641 if (!snd_sbdsp_command(p->chip, *buf++)) 642 goto __fail; 643 } 644 if (snd_sbdsp_get_byte(p->chip)) 645 goto __fail; 646 647 if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) { 648 i = 0; 649 /* some codecs (FastSpeech) take some time to initialize */ 650 while (1) { 651 snd_sbdsp_command(p->chip, 0x03); 652 status = snd_sbdsp_get_byte(p->chip); 653 if (status == 0x55 || ++i >= 10) 654 break; 655 udelay (10); 656 } 657 if (status != 0x55) { 658 snd_printd("%s: Microcode initialization failed\n", __func__); 659 goto __fail; 660 } 661 } else { 662 /* 663 * Read mixer register SB_DSP4_DMASETUP after loading 'main' code. 664 * Start CSP chip if no 16bit DMA channel is set - some kind 665 * of autorun or perhaps a bugfix? 666 */ 667 spin_lock(&p->chip->mixer_lock); 668 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP); 669 spin_unlock(&p->chip->mixer_lock); 670 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) { 671 err = (set_codec_parameter(p->chip, 0xaa, 0x00) || 672 set_codec_parameter(p->chip, 0xff, 0x00)); 673 snd_sbdsp_reset(p->chip); /* really! */ 674 if (err) 675 goto __fail; 676 set_mode_register(p->chip, 0xc0); /* c0 = STOP */ 677 set_mode_register(p->chip, 0x70); /* 70 = RUN */ 678 } 679 } 680 result = 0; 681 682 __fail: 683 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 684 return result; 685 } 686 687 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags) 688 { 689 int err; 690 unsigned char *kbuf; 691 692 kbuf = memdup_user(buf, size); 693 if (IS_ERR(kbuf)) 694 return PTR_ERR(kbuf); 695 696 err = snd_sb_csp_load(p, kbuf, size, load_flags); 697 698 kfree(kbuf); 699 return err; 700 } 701 702 static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags) 703 { 704 static const char *const names[] = { 705 "sb16/mulaw_main.csp", 706 "sb16/alaw_main.csp", 707 "sb16/ima_adpcm_init.csp", 708 "sb16/ima_adpcm_playback.csp", 709 "sb16/ima_adpcm_capture.csp", 710 }; 711 const struct firmware *program; 712 713 BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT); 714 program = p->csp_programs[index]; 715 if (!program) { 716 int err = request_firmware(&program, names[index], 717 p->chip->card->dev); 718 if (err < 0) 719 return err; 720 p->csp_programs[index] = program; 721 } 722 return snd_sb_csp_load(p, program->data, program->size, flags); 723 } 724 725 /* 726 * autoload hardware codec if necessary 727 * return 0 if CSP is loaded and ready to run (p->running != 0) 728 */ 729 static int snd_sb_csp_autoload(struct snd_sb_csp * p, snd_pcm_format_t pcm_sfmt, int play_rec_mode) 730 { 731 unsigned long flags; 732 int err = 0; 733 734 /* if CSP is running or manually loaded then exit */ 735 if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED)) 736 return -EBUSY; 737 738 /* autoload microcode only if requested hardware codec is not already loaded */ 739 if (((1U << (__force int)pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) { 740 p->running = SNDRV_SB_CSP_ST_AUTO; 741 } else { 742 switch (pcm_sfmt) { 743 case SNDRV_PCM_FORMAT_MU_LAW: 744 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0); 745 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; 746 p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; 747 break; 748 case SNDRV_PCM_FORMAT_A_LAW: 749 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0); 750 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; 751 p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; 752 break; 753 case SNDRV_PCM_FORMAT_IMA_ADPCM: 754 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT, 755 SNDRV_SB_CSP_LOAD_INITBLOCK); 756 if (err) 757 break; 758 if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) { 759 err = snd_sb_csp_firmware_load 760 (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0); 761 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE; 762 } else { 763 err = snd_sb_csp_firmware_load 764 (p, CSP_PROGRAM_ADPCM_CAPTURE, 0); 765 p->mode = SNDRV_SB_CSP_MODE_DSP_READ; 766 } 767 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; 768 break; 769 default: 770 /* Decouple CSP from IRQ and DMAREQ lines */ 771 if (p->running & SNDRV_SB_CSP_ST_AUTO) { 772 spin_lock_irqsave(&p->chip->reg_lock, flags); 773 set_mode_register(p->chip, 0xfc); 774 set_mode_register(p->chip, 0x00); 775 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 776 p->running = 0; /* clear autoloaded flag */ 777 } 778 return -EINVAL; 779 } 780 if (err) { 781 p->acc_format = 0; 782 p->acc_channels = p->acc_width = p->acc_rates = 0; 783 784 p->running = 0; /* clear autoloaded flag */ 785 p->mode = 0; 786 return (err); 787 } else { 788 p->running = SNDRV_SB_CSP_ST_AUTO; /* set autoloaded flag */ 789 p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT; /* only 16 bit data */ 790 p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO; 791 p->acc_rates = SNDRV_SB_CSP_RATE_ALL; /* HW codecs accept all rates */ 792 } 793 794 } 795 return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO; 796 } 797 798 /* 799 * start CSP 800 */ 801 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels) 802 { 803 unsigned char s_type; /* sample type */ 804 unsigned char mixL, mixR; 805 int result = -EIO; 806 unsigned long flags; 807 808 if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) { 809 snd_printd("%s: Microcode not loaded\n", __func__); 810 return -ENXIO; 811 } 812 if (p->running & SNDRV_SB_CSP_ST_RUNNING) { 813 snd_printd("%s: CSP already running\n", __func__); 814 return -EBUSY; 815 } 816 if (!(sample_width & p->acc_width)) { 817 snd_printd("%s: Unsupported PCM sample width\n", __func__); 818 return -EINVAL; 819 } 820 if (!(channels & p->acc_channels)) { 821 snd_printd("%s: Invalid number of channels\n", __func__); 822 return -EINVAL; 823 } 824 825 /* Mute PCM volume */ 826 spin_lock_irqsave(&p->chip->mixer_lock, flags); 827 mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV); 828 mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1); 829 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7); 830 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7); 831 832 spin_lock(&p->chip->reg_lock); 833 set_mode_register(p->chip, 0xc0); /* c0 = STOP */ 834 set_mode_register(p->chip, 0x70); /* 70 = RUN */ 835 836 s_type = 0x00; 837 if (channels == SNDRV_SB_CSP_MONO) 838 s_type = 0x11; /* 000n 000n (n = 1 if mono) */ 839 if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT) 840 s_type |= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */ 841 842 if (set_codec_parameter(p->chip, 0x81, s_type)) { 843 snd_printd("%s: Set sample type command failed\n", __func__); 844 goto __fail; 845 } 846 if (set_codec_parameter(p->chip, 0x80, 0x00)) { 847 snd_printd("%s: Codec start command failed\n", __func__); 848 goto __fail; 849 } 850 p->run_width = sample_width; 851 p->run_channels = channels; 852 853 p->running |= SNDRV_SB_CSP_ST_RUNNING; 854 855 if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) { 856 set_codec_parameter(p->chip, 0xe0, 0x01); 857 /* enable QSound decoder */ 858 set_codec_parameter(p->chip, 0x00, 0xff); 859 set_codec_parameter(p->chip, 0x01, 0xff); 860 p->running |= SNDRV_SB_CSP_ST_QSOUND; 861 /* set QSound startup value */ 862 snd_sb_csp_qsound_transfer(p); 863 } 864 result = 0; 865 866 __fail: 867 spin_unlock(&p->chip->reg_lock); 868 869 /* restore PCM volume */ 870 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL); 871 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR); 872 spin_unlock_irqrestore(&p->chip->mixer_lock, flags); 873 874 return result; 875 } 876 877 /* 878 * stop CSP 879 */ 880 static int snd_sb_csp_stop(struct snd_sb_csp * p) 881 { 882 int result; 883 unsigned char mixL, mixR; 884 unsigned long flags; 885 886 if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) 887 return 0; 888 889 /* Mute PCM volume */ 890 spin_lock_irqsave(&p->chip->mixer_lock, flags); 891 mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV); 892 mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1); 893 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7); 894 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7); 895 896 spin_lock(&p->chip->reg_lock); 897 if (p->running & SNDRV_SB_CSP_ST_QSOUND) { 898 set_codec_parameter(p->chip, 0xe0, 0x01); 899 /* disable QSound decoder */ 900 set_codec_parameter(p->chip, 0x00, 0x00); 901 set_codec_parameter(p->chip, 0x01, 0x00); 902 903 p->running &= ~SNDRV_SB_CSP_ST_QSOUND; 904 } 905 result = set_mode_register(p->chip, 0xc0); /* c0 = STOP */ 906 spin_unlock(&p->chip->reg_lock); 907 908 /* restore PCM volume */ 909 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL); 910 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR); 911 spin_unlock_irqrestore(&p->chip->mixer_lock, flags); 912 913 if (!(result)) 914 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING); 915 return result; 916 } 917 918 /* 919 * pause CSP codec and hold DMA transfer 920 */ 921 static int snd_sb_csp_pause(struct snd_sb_csp * p) 922 { 923 int result; 924 unsigned long flags; 925 926 if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) 927 return -EBUSY; 928 929 spin_lock_irqsave(&p->chip->reg_lock, flags); 930 result = set_codec_parameter(p->chip, 0x80, 0xff); 931 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 932 if (!(result)) 933 p->running |= SNDRV_SB_CSP_ST_PAUSED; 934 935 return result; 936 } 937 938 /* 939 * restart CSP codec and resume DMA transfer 940 */ 941 static int snd_sb_csp_restart(struct snd_sb_csp * p) 942 { 943 int result; 944 unsigned long flags; 945 946 if (!(p->running & SNDRV_SB_CSP_ST_PAUSED)) 947 return -EBUSY; 948 949 spin_lock_irqsave(&p->chip->reg_lock, flags); 950 result = set_codec_parameter(p->chip, 0x80, 0x00); 951 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 952 if (!(result)) 953 p->running &= ~SNDRV_SB_CSP_ST_PAUSED; 954 955 return result; 956 } 957 958 /* ------------------------------ */ 959 960 /* 961 * QSound mixer control for PCM 962 */ 963 964 #define snd_sb_qsound_switch_info snd_ctl_boolean_mono_info 965 966 static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 967 { 968 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); 969 970 ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0; 971 return 0; 972 } 973 974 static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 975 { 976 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); 977 unsigned long flags; 978 int change; 979 unsigned char nval; 980 981 nval = ucontrol->value.integer.value[0] & 0x01; 982 spin_lock_irqsave(&p->q_lock, flags); 983 change = p->q_enabled != nval; 984 p->q_enabled = nval; 985 spin_unlock_irqrestore(&p->q_lock, flags); 986 return change; 987 } 988 989 static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 990 { 991 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 992 uinfo->count = 2; 993 uinfo->value.integer.min = 0; 994 uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; 995 return 0; 996 } 997 998 static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 999 { 1000 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); 1001 unsigned long flags; 1002 1003 spin_lock_irqsave(&p->q_lock, flags); 1004 ucontrol->value.integer.value[0] = p->qpos_left; 1005 ucontrol->value.integer.value[1] = p->qpos_right; 1006 spin_unlock_irqrestore(&p->q_lock, flags); 1007 return 0; 1008 } 1009 1010 static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1011 { 1012 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); 1013 unsigned long flags; 1014 int change; 1015 unsigned char nval1, nval2; 1016 1017 nval1 = ucontrol->value.integer.value[0]; 1018 if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) 1019 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; 1020 nval2 = ucontrol->value.integer.value[1]; 1021 if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) 1022 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; 1023 spin_lock_irqsave(&p->q_lock, flags); 1024 change = p->qpos_left != nval1 || p->qpos_right != nval2; 1025 p->qpos_left = nval1; 1026 p->qpos_right = nval2; 1027 p->qpos_changed = change; 1028 spin_unlock_irqrestore(&p->q_lock, flags); 1029 return change; 1030 } 1031 1032 static const struct snd_kcontrol_new snd_sb_qsound_switch = { 1033 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1034 .name = "3D Control - Switch", 1035 .info = snd_sb_qsound_switch_info, 1036 .get = snd_sb_qsound_switch_get, 1037 .put = snd_sb_qsound_switch_put 1038 }; 1039 1040 static const struct snd_kcontrol_new snd_sb_qsound_space = { 1041 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1042 .name = "3D Control - Space", 1043 .info = snd_sb_qsound_space_info, 1044 .get = snd_sb_qsound_space_get, 1045 .put = snd_sb_qsound_space_put 1046 }; 1047 1048 static int snd_sb_qsound_build(struct snd_sb_csp * p) 1049 { 1050 struct snd_card *card; 1051 int err; 1052 1053 if (snd_BUG_ON(!p)) 1054 return -EINVAL; 1055 1056 card = p->chip->card; 1057 p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2; 1058 p->qpos_changed = 0; 1059 1060 spin_lock_init(&p->q_lock); 1061 1062 if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0) 1063 goto __error; 1064 if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0) 1065 goto __error; 1066 1067 return 0; 1068 1069 __error: 1070 snd_sb_qsound_destroy(p); 1071 return err; 1072 } 1073 1074 static void snd_sb_qsound_destroy(struct snd_sb_csp * p) 1075 { 1076 struct snd_card *card; 1077 unsigned long flags; 1078 1079 if (snd_BUG_ON(!p)) 1080 return; 1081 1082 card = p->chip->card; 1083 1084 down_write(&card->controls_rwsem); 1085 if (p->qsound_switch) 1086 snd_ctl_remove(card, p->qsound_switch); 1087 if (p->qsound_space) 1088 snd_ctl_remove(card, p->qsound_space); 1089 up_write(&card->controls_rwsem); 1090 1091 /* cancel pending transfer of QSound parameters */ 1092 spin_lock_irqsave (&p->q_lock, flags); 1093 p->qpos_changed = 0; 1094 spin_unlock_irqrestore (&p->q_lock, flags); 1095 } 1096 1097 /* 1098 * Transfer qsound parameters to CSP, 1099 * function should be called from interrupt routine 1100 */ 1101 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p) 1102 { 1103 int err = -ENXIO; 1104 1105 spin_lock(&p->q_lock); 1106 if (p->running & SNDRV_SB_CSP_ST_QSOUND) { 1107 set_codec_parameter(p->chip, 0xe0, 0x01); 1108 /* left channel */ 1109 set_codec_parameter(p->chip, 0x00, p->qpos_left); 1110 set_codec_parameter(p->chip, 0x02, 0x00); 1111 /* right channel */ 1112 set_codec_parameter(p->chip, 0x00, p->qpos_right); 1113 set_codec_parameter(p->chip, 0x03, 0x00); 1114 err = 0; 1115 } 1116 p->qpos_changed = 0; 1117 spin_unlock(&p->q_lock); 1118 return err; 1119 } 1120 1121 /* ------------------------------ */ 1122 1123 /* 1124 * proc interface 1125 */ 1126 static int init_proc_entry(struct snd_sb_csp * p, int device) 1127 { 1128 char name[16]; 1129 1130 sprintf(name, "cspD%d", device); 1131 snd_card_ro_proc_new(p->chip->card, name, p, info_read); 1132 return 0; 1133 } 1134 1135 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) 1136 { 1137 struct snd_sb_csp *p = entry->private_data; 1138 1139 snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f)); 1140 snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'), 1141 ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'), 1142 ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'), 1143 ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-')); 1144 if (p->running & SNDRV_SB_CSP_ST_LOADED) { 1145 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr); 1146 snd_iprintf(buffer, "Sample rates: "); 1147 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) { 1148 snd_iprintf(buffer, "All\n"); 1149 } else { 1150 snd_iprintf(buffer, "%s%s%s%s\n", 1151 ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""), 1152 ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""), 1153 ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""), 1154 ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : "")); 1155 } 1156 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { 1157 snd_iprintf(buffer, "QSound decoder %sabled\n", 1158 p->q_enabled ? "en" : "dis"); 1159 } else { 1160 snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n", 1161 p->acc_format, 1162 ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"), 1163 ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"), 1164 ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"), 1165 ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"), 1166 ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"), 1167 ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-")); 1168 } 1169 } 1170 if (p->running & SNDRV_SB_CSP_ST_AUTO) { 1171 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n"); 1172 } 1173 if (p->running & SNDRV_SB_CSP_ST_RUNNING) { 1174 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n", 1175 ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8), 1176 ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo")); 1177 } 1178 if (p->running & SNDRV_SB_CSP_ST_QSOUND) { 1179 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n", 1180 p->qpos_left, p->qpos_right); 1181 } 1182 } 1183 1184 /* */ 1185 1186 EXPORT_SYMBOL(snd_sb_csp_new); 1187