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 <sound/driver.h> 27 #include <linux/delay.h> 28 #include <linux/init.h> 29 #include <linux/slab.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 #ifndef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL 40 MODULE_FIRMWARE("sb16/mulaw_main.csp"); 41 MODULE_FIRMWARE("sb16/alaw_main.csp"); 42 MODULE_FIRMWARE("sb16/ima_adpcm_init.csp"); 43 MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp"); 44 MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp"); 45 #endif 46 47 #ifdef SNDRV_LITTLE_ENDIAN 48 #define CSP_HDR_VALUE(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24)) 49 #else 50 #define CSP_HDR_VALUE(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24)) 51 #endif 52 53 #define RIFF_HEADER CSP_HDR_VALUE('R', 'I', 'F', 'F') 54 #define CSP__HEADER CSP_HDR_VALUE('C', 'S', 'P', ' ') 55 #define LIST_HEADER CSP_HDR_VALUE('L', 'I', 'S', 'T') 56 #define FUNC_HEADER CSP_HDR_VALUE('f', 'u', 'n', 'c') 57 #define CODE_HEADER CSP_HDR_VALUE('c', 'o', 'd', 'e') 58 #define INIT_HEADER CSP_HDR_VALUE('i', 'n', 'i', 't') 59 #define MAIN_HEADER CSP_HDR_VALUE('m', 'a', 'i', 'n') 60 61 /* 62 * RIFF data format 63 */ 64 struct riff_header { 65 __u32 name; 66 __u32 len; 67 }; 68 69 struct desc_header { 70 struct riff_header info; 71 __u16 func_nr; 72 __u16 VOC_type; 73 __u16 flags_play_rec; 74 __u16 flags_16bit_8bit; 75 __u16 flags_stereo_mono; 76 __u16 flags_rates; 77 }; 78 79 /* 80 * prototypes 81 */ 82 static void snd_sb_csp_free(struct snd_hwdep *hw); 83 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file); 84 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg); 85 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file); 86 87 static int csp_detect(struct snd_sb *chip, int *version); 88 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val); 89 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val); 90 static int read_register(struct snd_sb *chip, unsigned char reg); 91 static int set_mode_register(struct snd_sb *chip, unsigned char mode); 92 static int get_version(struct snd_sb *chip); 93 94 static int snd_sb_csp_riff_load(struct snd_sb_csp * p, 95 struct snd_sb_csp_microcode __user * code); 96 static int snd_sb_csp_unload(struct snd_sb_csp * p); 97 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags); 98 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode); 99 static int snd_sb_csp_check_version(struct snd_sb_csp * p); 100 101 static int snd_sb_csp_use(struct snd_sb_csp * p); 102 static int snd_sb_csp_unuse(struct snd_sb_csp * p); 103 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels); 104 static int snd_sb_csp_stop(struct snd_sb_csp * p); 105 static int snd_sb_csp_pause(struct snd_sb_csp * p); 106 static int snd_sb_csp_restart(struct snd_sb_csp * p); 107 108 static int snd_sb_qsound_build(struct snd_sb_csp * p); 109 static void snd_sb_qsound_destroy(struct snd_sb_csp * p); 110 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p); 111 112 static int init_proc_entry(struct snd_sb_csp * p, int device); 113 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer); 114 115 /* 116 * Detect CSP chip and create a new instance 117 */ 118 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep) 119 { 120 struct snd_sb_csp *p; 121 int uninitialized_var(version); 122 int err; 123 struct snd_hwdep *hw; 124 125 if (rhwdep) 126 *rhwdep = NULL; 127 128 if (csp_detect(chip, &version)) 129 return -ENODEV; 130 131 if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0) 132 return err; 133 134 if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) { 135 snd_device_free(chip->card, hw); 136 return -ENOMEM; 137 } 138 p->chip = chip; 139 p->version = version; 140 141 /* CSP operators */ 142 p->ops.csp_use = snd_sb_csp_use; 143 p->ops.csp_unuse = snd_sb_csp_unuse; 144 p->ops.csp_autoload = snd_sb_csp_autoload; 145 p->ops.csp_start = snd_sb_csp_start; 146 p->ops.csp_stop = snd_sb_csp_stop; 147 p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer; 148 149 mutex_init(&p->access_mutex); 150 sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f)); 151 hw->iface = SNDRV_HWDEP_IFACE_SB16CSP; 152 hw->private_data = p; 153 hw->private_free = snd_sb_csp_free; 154 155 /* operators - only write/ioctl */ 156 hw->ops.open = snd_sb_csp_open; 157 hw->ops.ioctl = snd_sb_csp_ioctl; 158 hw->ops.release = snd_sb_csp_release; 159 160 /* create a proc entry */ 161 init_proc_entry(p, device); 162 if (rhwdep) 163 *rhwdep = hw; 164 return 0; 165 } 166 167 /* 168 * free_private for hwdep instance 169 */ 170 static void snd_sb_csp_free(struct snd_hwdep *hwdep) 171 { 172 #ifndef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL 173 int i; 174 #endif 175 struct snd_sb_csp *p = hwdep->private_data; 176 if (p) { 177 if (p->running & SNDRV_SB_CSP_ST_RUNNING) 178 snd_sb_csp_stop(p); 179 #ifndef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL 180 for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i) 181 release_firmware(p->csp_programs[i]); 182 #endif 183 kfree(p); 184 } 185 } 186 187 /* ------------------------------ */ 188 189 /* 190 * open the device exclusively 191 */ 192 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file) 193 { 194 struct snd_sb_csp *p = hw->private_data; 195 return (snd_sb_csp_use(p)); 196 } 197 198 /* 199 * ioctl for hwdep device: 200 */ 201 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg) 202 { 203 struct snd_sb_csp *p = hw->private_data; 204 struct snd_sb_csp_info info; 205 struct snd_sb_csp_start start_info; 206 int err; 207 208 snd_assert(p != NULL, return -EINVAL); 209 210 if (snd_sb_csp_check_version(p)) 211 return -ENODEV; 212 213 switch (cmd) { 214 /* get information */ 215 case SNDRV_SB_CSP_IOCTL_INFO: 216 *info.codec_name = *p->codec_name; 217 info.func_nr = p->func_nr; 218 info.acc_format = p->acc_format; 219 info.acc_channels = p->acc_channels; 220 info.acc_width = p->acc_width; 221 info.acc_rates = p->acc_rates; 222 info.csp_mode = p->mode; 223 info.run_channels = p->run_channels; 224 info.run_width = p->run_width; 225 info.version = p->version; 226 info.state = p->running; 227 if (copy_to_user((void __user *)arg, &info, sizeof(info))) 228 err = -EFAULT; 229 else 230 err = 0; 231 break; 232 233 /* load CSP microcode */ 234 case SNDRV_SB_CSP_IOCTL_LOAD_CODE: 235 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? 236 -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg)); 237 break; 238 case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE: 239 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ? 240 -EBUSY : snd_sb_csp_unload(p)); 241 break; 242 243 /* change CSP running state */ 244 case SNDRV_SB_CSP_IOCTL_START: 245 if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info))) 246 err = -EFAULT; 247 else 248 err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels); 249 break; 250 case SNDRV_SB_CSP_IOCTL_STOP: 251 err = snd_sb_csp_stop(p); 252 break; 253 case SNDRV_SB_CSP_IOCTL_PAUSE: 254 err = snd_sb_csp_pause(p); 255 break; 256 case SNDRV_SB_CSP_IOCTL_RESTART: 257 err = snd_sb_csp_restart(p); 258 break; 259 default: 260 err = -ENOTTY; 261 break; 262 } 263 264 return err; 265 } 266 267 /* 268 * close the device 269 */ 270 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file) 271 { 272 struct snd_sb_csp *p = hw->private_data; 273 return (snd_sb_csp_unuse(p)); 274 } 275 276 /* ------------------------------ */ 277 278 /* 279 * acquire device 280 */ 281 static int snd_sb_csp_use(struct snd_sb_csp * p) 282 { 283 mutex_lock(&p->access_mutex); 284 if (p->used) { 285 mutex_unlock(&p->access_mutex); 286 return -EAGAIN; 287 } 288 p->used++; 289 mutex_unlock(&p->access_mutex); 290 291 return 0; 292 293 } 294 295 /* 296 * release device 297 */ 298 static int snd_sb_csp_unuse(struct snd_sb_csp * p) 299 { 300 mutex_lock(&p->access_mutex); 301 p->used--; 302 mutex_unlock(&p->access_mutex); 303 304 return 0; 305 } 306 307 /* 308 * load microcode via ioctl: 309 * code is user-space pointer 310 */ 311 static int snd_sb_csp_riff_load(struct snd_sb_csp * p, 312 struct snd_sb_csp_microcode __user * mcode) 313 { 314 struct snd_sb_csp_mc_header info; 315 316 unsigned char __user *data_ptr; 317 unsigned char __user *data_end; 318 unsigned short func_nr = 0; 319 320 struct riff_header file_h, item_h, code_h; 321 __u32 item_type; 322 struct desc_header funcdesc_h; 323 324 unsigned long flags; 325 int err; 326 327 if (copy_from_user(&info, mcode, sizeof(info))) 328 return -EFAULT; 329 data_ptr = mcode->data; 330 331 if (copy_from_user(&file_h, data_ptr, sizeof(file_h))) 332 return -EFAULT; 333 if ((file_h.name != RIFF_HEADER) || 334 (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) { 335 snd_printd("%s: Invalid RIFF header\n", __FUNCTION__); 336 return -EINVAL; 337 } 338 data_ptr += sizeof(file_h); 339 data_end = data_ptr + le32_to_cpu(file_h.len); 340 341 if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) 342 return -EFAULT; 343 if (item_type != CSP__HEADER) { 344 snd_printd("%s: Invalid RIFF file type\n", __FUNCTION__); 345 return -EINVAL; 346 } 347 data_ptr += sizeof (item_type); 348 349 for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) { 350 if (copy_from_user(&item_h, data_ptr, sizeof(item_h))) 351 return -EFAULT; 352 data_ptr += sizeof(item_h); 353 if (item_h.name != LIST_HEADER) 354 continue; 355 356 if (copy_from_user(&item_type, data_ptr, sizeof(item_type))) 357 return -EFAULT; 358 switch (item_type) { 359 case FUNC_HEADER: 360 if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h))) 361 return -EFAULT; 362 func_nr = le16_to_cpu(funcdesc_h.func_nr); 363 break; 364 case CODE_HEADER: 365 if (func_nr != info.func_req) 366 break; /* not required function, try next */ 367 data_ptr += sizeof(item_type); 368 369 /* destroy QSound mixer element */ 370 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { 371 snd_sb_qsound_destroy(p); 372 } 373 /* Clear all flags */ 374 p->running = 0; 375 p->mode = 0; 376 377 /* load microcode blocks */ 378 for (;;) { 379 if (data_ptr >= data_end) 380 return -EINVAL; 381 if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) 382 return -EFAULT; 383 384 /* init microcode blocks */ 385 if (code_h.name != INIT_HEADER) 386 break; 387 data_ptr += sizeof(code_h); 388 err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len), 389 SNDRV_SB_CSP_LOAD_INITBLOCK); 390 if (err) 391 return err; 392 data_ptr += le32_to_cpu(code_h.len); 393 } 394 /* main microcode block */ 395 if (copy_from_user(&code_h, data_ptr, sizeof(code_h))) 396 return -EFAULT; 397 398 if (code_h.name != MAIN_HEADER) { 399 snd_printd("%s: Missing 'main' microcode\n", __FUNCTION__); 400 return -EINVAL; 401 } 402 data_ptr += sizeof(code_h); 403 err = snd_sb_csp_load_user(p, data_ptr, 404 le32_to_cpu(code_h.len), 0); 405 if (err) 406 return err; 407 408 /* fill in codec header */ 409 strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name)); 410 p->func_nr = func_nr; 411 p->mode = le16_to_cpu(funcdesc_h.flags_play_rec); 412 switch (le16_to_cpu(funcdesc_h.VOC_type)) { 413 case 0x0001: /* QSound decoder */ 414 if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) { 415 if (snd_sb_qsound_build(p) == 0) 416 /* set QSound flag and clear all other mode flags */ 417 p->mode = SNDRV_SB_CSP_MODE_QSOUND; 418 } 419 p->acc_format = 0; 420 break; 421 case 0x0006: /* A Law codec */ 422 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; 423 break; 424 case 0x0007: /* Mu Law codec */ 425 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; 426 break; 427 case 0x0011: /* what Creative thinks is IMA ADPCM codec */ 428 case 0x0200: /* Creative ADPCM codec */ 429 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; 430 break; 431 case 201: /* Text 2 Speech decoder */ 432 /* TODO: Text2Speech handling routines */ 433 p->acc_format = 0; 434 break; 435 case 0x0202: /* Fast Speech 8 codec */ 436 case 0x0203: /* Fast Speech 10 codec */ 437 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL; 438 break; 439 default: /* other codecs are unsupported */ 440 p->acc_format = p->acc_width = p->acc_rates = 0; 441 p->mode = 0; 442 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n", 443 __FUNCTION__, 444 le16_to_cpu(funcdesc_h.VOC_type)); 445 return -EINVAL; 446 } 447 p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono); 448 p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit); 449 p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates); 450 451 /* Decouple CSP from IRQ and DMAREQ lines */ 452 spin_lock_irqsave(&p->chip->reg_lock, flags); 453 set_mode_register(p->chip, 0xfc); 454 set_mode_register(p->chip, 0x00); 455 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 456 457 /* finished loading successfully */ 458 p->running = SNDRV_SB_CSP_ST_LOADED; /* set LOADED flag */ 459 return 0; 460 } 461 } 462 snd_printd("%s: Function #%d not found\n", __FUNCTION__, info.func_req); 463 return -EINVAL; 464 } 465 466 /* 467 * unload CSP microcode 468 */ 469 static int snd_sb_csp_unload(struct snd_sb_csp * p) 470 { 471 if (p->running & SNDRV_SB_CSP_ST_RUNNING) 472 return -EBUSY; 473 if (!(p->running & SNDRV_SB_CSP_ST_LOADED)) 474 return -ENXIO; 475 476 /* clear supported formats */ 477 p->acc_format = 0; 478 p->acc_channels = p->acc_width = p->acc_rates = 0; 479 /* destroy QSound mixer element */ 480 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { 481 snd_sb_qsound_destroy(p); 482 } 483 /* clear all flags */ 484 p->running = 0; 485 p->mode = 0; 486 return 0; 487 } 488 489 /* 490 * send command sequence to DSP 491 */ 492 static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size) 493 { 494 int i; 495 for (i = 0; i < size; i++) { 496 if (!snd_sbdsp_command(chip, seq[i])) 497 return -EIO; 498 } 499 return 0; 500 } 501 502 /* 503 * set CSP codec parameter 504 */ 505 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val) 506 { 507 unsigned char dsp_cmd[3]; 508 509 dsp_cmd[0] = 0x05; /* CSP set codec parameter */ 510 dsp_cmd[1] = val; /* Parameter value */ 511 dsp_cmd[2] = par; /* Parameter */ 512 command_seq(chip, dsp_cmd, 3); 513 snd_sbdsp_command(chip, 0x03); /* DSP read? */ 514 if (snd_sbdsp_get_byte(chip) != par) 515 return -EIO; 516 return 0; 517 } 518 519 /* 520 * set CSP register 521 */ 522 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val) 523 { 524 unsigned char dsp_cmd[3]; 525 526 dsp_cmd[0] = 0x0e; /* CSP set register */ 527 dsp_cmd[1] = reg; /* CSP Register */ 528 dsp_cmd[2] = val; /* value */ 529 return command_seq(chip, dsp_cmd, 3); 530 } 531 532 /* 533 * read CSP register 534 * return < 0 -> error 535 */ 536 static int read_register(struct snd_sb *chip, unsigned char reg) 537 { 538 unsigned char dsp_cmd[2]; 539 540 dsp_cmd[0] = 0x0f; /* CSP read register */ 541 dsp_cmd[1] = reg; /* CSP Register */ 542 command_seq(chip, dsp_cmd, 2); 543 return snd_sbdsp_get_byte(chip); /* Read DSP value */ 544 } 545 546 /* 547 * set CSP mode register 548 */ 549 static int set_mode_register(struct snd_sb *chip, unsigned char mode) 550 { 551 unsigned char dsp_cmd[2]; 552 553 dsp_cmd[0] = 0x04; /* CSP set mode register */ 554 dsp_cmd[1] = mode; /* mode */ 555 return command_seq(chip, dsp_cmd, 2); 556 } 557 558 /* 559 * Detect CSP 560 * return 0 if CSP exists. 561 */ 562 static int csp_detect(struct snd_sb *chip, int *version) 563 { 564 unsigned char csp_test1, csp_test2; 565 unsigned long flags; 566 int result = -ENODEV; 567 568 spin_lock_irqsave(&chip->reg_lock, flags); 569 570 set_codec_parameter(chip, 0x00, 0x00); 571 set_mode_register(chip, 0xfc); /* 0xfc = ?? */ 572 573 csp_test1 = read_register(chip, 0x83); 574 set_register(chip, 0x83, ~csp_test1); 575 csp_test2 = read_register(chip, 0x83); 576 if (csp_test2 != (csp_test1 ^ 0xff)) 577 goto __fail; 578 579 set_register(chip, 0x83, csp_test1); 580 csp_test2 = read_register(chip, 0x83); 581 if (csp_test2 != csp_test1) 582 goto __fail; 583 584 set_mode_register(chip, 0x00); /* 0x00 = ? */ 585 586 *version = get_version(chip); 587 snd_sbdsp_reset(chip); /* reset DSP after getversion! */ 588 if (*version >= 0x10 && *version <= 0x1f) 589 result = 0; /* valid version id */ 590 591 __fail: 592 spin_unlock_irqrestore(&chip->reg_lock, flags); 593 return result; 594 } 595 596 /* 597 * get CSP version number 598 */ 599 static int get_version(struct snd_sb *chip) 600 { 601 unsigned char dsp_cmd[2]; 602 603 dsp_cmd[0] = 0x08; /* SB_DSP_!something! */ 604 dsp_cmd[1] = 0x03; /* get chip version id? */ 605 command_seq(chip, dsp_cmd, 2); 606 607 return (snd_sbdsp_get_byte(chip)); 608 } 609 610 /* 611 * check if the CSP version is valid 612 */ 613 static int snd_sb_csp_check_version(struct snd_sb_csp * p) 614 { 615 if (p->version < 0x10 || p->version > 0x1f) { 616 snd_printd("%s: Invalid CSP version: 0x%x\n", __FUNCTION__, p->version); 617 return 1; 618 } 619 return 0; 620 } 621 622 /* 623 * download microcode to CSP (microcode should have one "main" block). 624 */ 625 static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags) 626 { 627 int status, i; 628 int err; 629 int result = -EIO; 630 unsigned long flags; 631 632 spin_lock_irqsave(&p->chip->reg_lock, flags); 633 snd_sbdsp_command(p->chip, 0x01); /* CSP download command */ 634 if (snd_sbdsp_get_byte(p->chip)) { 635 snd_printd("%s: Download command failed\n", __FUNCTION__); 636 goto __fail; 637 } 638 /* Send CSP low byte (size - 1) */ 639 snd_sbdsp_command(p->chip, (unsigned char)(size - 1)); 640 /* Send high byte */ 641 snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8)); 642 /* send microcode sequence */ 643 /* load from kernel space */ 644 while (size--) { 645 if (!snd_sbdsp_command(p->chip, *buf++)) 646 goto __fail; 647 } 648 if (snd_sbdsp_get_byte(p->chip)) 649 goto __fail; 650 651 if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) { 652 i = 0; 653 /* some codecs (FastSpeech) take some time to initialize */ 654 while (1) { 655 snd_sbdsp_command(p->chip, 0x03); 656 status = snd_sbdsp_get_byte(p->chip); 657 if (status == 0x55 || ++i >= 10) 658 break; 659 udelay (10); 660 } 661 if (status != 0x55) { 662 snd_printd("%s: Microcode initialization failed\n", __FUNCTION__); 663 goto __fail; 664 } 665 } else { 666 /* 667 * Read mixer register SB_DSP4_DMASETUP after loading 'main' code. 668 * Start CSP chip if no 16bit DMA channel is set - some kind 669 * of autorun or perhaps a bugfix? 670 */ 671 spin_lock(&p->chip->mixer_lock); 672 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP); 673 spin_unlock(&p->chip->mixer_lock); 674 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) { 675 err = (set_codec_parameter(p->chip, 0xaa, 0x00) || 676 set_codec_parameter(p->chip, 0xff, 0x00)); 677 snd_sbdsp_reset(p->chip); /* really! */ 678 if (err) 679 goto __fail; 680 set_mode_register(p->chip, 0xc0); /* c0 = STOP */ 681 set_mode_register(p->chip, 0x70); /* 70 = RUN */ 682 } 683 } 684 result = 0; 685 686 __fail: 687 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 688 return result; 689 } 690 691 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags) 692 { 693 int err = -ENOMEM; 694 unsigned char *kbuf = kmalloc(size, GFP_KERNEL); 695 if (kbuf) { 696 if (copy_from_user(kbuf, buf, size)) 697 err = -EFAULT; 698 else 699 err = snd_sb_csp_load(p, kbuf, size, load_flags); 700 kfree(kbuf); 701 } 702 return err; 703 } 704 705 #ifdef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL 706 #include "sb16_csp_codecs.h" 707 708 static const struct firmware snd_sb_csp_static_programs[] = { 709 { .data = mulaw_main, .size = sizeof mulaw_main }, 710 { .data = alaw_main, .size = sizeof alaw_main }, 711 { .data = ima_adpcm_init, .size = sizeof ima_adpcm_init }, 712 { .data = ima_adpcm_playback, .size = sizeof ima_adpcm_playback }, 713 { .data = ima_adpcm_capture, .size = sizeof ima_adpcm_capture }, 714 }; 715 #endif 716 717 static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags) 718 { 719 static const char *const names[] = { 720 "sb16/mulaw_main.csp", 721 "sb16/alaw_main.csp", 722 "sb16/ima_adpcm_init.csp", 723 "sb16/ima_adpcm_playback.csp", 724 "sb16/ima_adpcm_capture.csp", 725 }; 726 const struct firmware *program; 727 728 BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT); 729 program = p->csp_programs[index]; 730 if (!program) { 731 #ifdef CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL 732 program = &snd_sb_csp_static_programs[index]; 733 #else 734 int err = request_firmware(&program, names[index], 735 p->chip->card->dev); 736 if (err < 0) 737 return err; 738 #endif 739 p->csp_programs[index] = program; 740 } 741 return snd_sb_csp_load(p, program->data, program->size, flags); 742 } 743 744 /* 745 * autoload hardware codec if necessary 746 * return 0 if CSP is loaded and ready to run (p->running != 0) 747 */ 748 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode) 749 { 750 unsigned long flags; 751 int err = 0; 752 753 /* if CSP is running or manually loaded then exit */ 754 if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED)) 755 return -EBUSY; 756 757 /* autoload microcode only if requested hardware codec is not already loaded */ 758 if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) { 759 p->running = SNDRV_SB_CSP_ST_AUTO; 760 } else { 761 switch (pcm_sfmt) { 762 case SNDRV_PCM_FORMAT_MU_LAW: 763 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0); 764 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW; 765 p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; 766 break; 767 case SNDRV_PCM_FORMAT_A_LAW: 768 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0); 769 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW; 770 p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE; 771 break; 772 case SNDRV_PCM_FORMAT_IMA_ADPCM: 773 err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT, 774 SNDRV_SB_CSP_LOAD_INITBLOCK); 775 if (err) 776 break; 777 if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) { 778 err = snd_sb_csp_firmware_load 779 (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0); 780 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE; 781 } else { 782 err = snd_sb_csp_firmware_load 783 (p, CSP_PROGRAM_ADPCM_CAPTURE, 0); 784 p->mode = SNDRV_SB_CSP_MODE_DSP_READ; 785 } 786 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM; 787 break; 788 default: 789 /* Decouple CSP from IRQ and DMAREQ lines */ 790 if (p->running & SNDRV_SB_CSP_ST_AUTO) { 791 spin_lock_irqsave(&p->chip->reg_lock, flags); 792 set_mode_register(p->chip, 0xfc); 793 set_mode_register(p->chip, 0x00); 794 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 795 p->running = 0; /* clear autoloaded flag */ 796 } 797 return -EINVAL; 798 } 799 if (err) { 800 p->acc_format = 0; 801 p->acc_channels = p->acc_width = p->acc_rates = 0; 802 803 p->running = 0; /* clear autoloaded flag */ 804 p->mode = 0; 805 return (err); 806 } else { 807 p->running = SNDRV_SB_CSP_ST_AUTO; /* set autoloaded flag */ 808 p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT; /* only 16 bit data */ 809 p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO; 810 p->acc_rates = SNDRV_SB_CSP_RATE_ALL; /* HW codecs accept all rates */ 811 } 812 813 } 814 return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO; 815 } 816 817 /* 818 * start CSP 819 */ 820 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels) 821 { 822 unsigned char s_type; /* sample type */ 823 unsigned char mixL, mixR; 824 int result = -EIO; 825 unsigned long flags; 826 827 if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) { 828 snd_printd("%s: Microcode not loaded\n", __FUNCTION__); 829 return -ENXIO; 830 } 831 if (p->running & SNDRV_SB_CSP_ST_RUNNING) { 832 snd_printd("%s: CSP already running\n", __FUNCTION__); 833 return -EBUSY; 834 } 835 if (!(sample_width & p->acc_width)) { 836 snd_printd("%s: Unsupported PCM sample width\n", __FUNCTION__); 837 return -EINVAL; 838 } 839 if (!(channels & p->acc_channels)) { 840 snd_printd("%s: Invalid number of channels\n", __FUNCTION__); 841 return -EINVAL; 842 } 843 844 /* Mute PCM volume */ 845 spin_lock_irqsave(&p->chip->mixer_lock, flags); 846 mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV); 847 mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1); 848 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7); 849 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7); 850 851 spin_lock(&p->chip->reg_lock); 852 set_mode_register(p->chip, 0xc0); /* c0 = STOP */ 853 set_mode_register(p->chip, 0x70); /* 70 = RUN */ 854 855 s_type = 0x00; 856 if (channels == SNDRV_SB_CSP_MONO) 857 s_type = 0x11; /* 000n 000n (n = 1 if mono) */ 858 if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT) 859 s_type |= 0x22; /* 00dX 00dX (d = 1 if 8 bit samples) */ 860 861 if (set_codec_parameter(p->chip, 0x81, s_type)) { 862 snd_printd("%s: Set sample type command failed\n", __FUNCTION__); 863 goto __fail; 864 } 865 if (set_codec_parameter(p->chip, 0x80, 0x00)) { 866 snd_printd("%s: Codec start command failed\n", __FUNCTION__); 867 goto __fail; 868 } 869 p->run_width = sample_width; 870 p->run_channels = channels; 871 872 p->running |= SNDRV_SB_CSP_ST_RUNNING; 873 874 if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) { 875 set_codec_parameter(p->chip, 0xe0, 0x01); 876 /* enable QSound decoder */ 877 set_codec_parameter(p->chip, 0x00, 0xff); 878 set_codec_parameter(p->chip, 0x01, 0xff); 879 p->running |= SNDRV_SB_CSP_ST_QSOUND; 880 /* set QSound startup value */ 881 snd_sb_csp_qsound_transfer(p); 882 } 883 result = 0; 884 885 __fail: 886 spin_unlock(&p->chip->reg_lock); 887 888 /* restore PCM volume */ 889 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL); 890 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR); 891 spin_unlock_irqrestore(&p->chip->mixer_lock, flags); 892 893 return result; 894 } 895 896 /* 897 * stop CSP 898 */ 899 static int snd_sb_csp_stop(struct snd_sb_csp * p) 900 { 901 int result; 902 unsigned char mixL, mixR; 903 unsigned long flags; 904 905 if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) 906 return 0; 907 908 /* Mute PCM volume */ 909 spin_lock_irqsave(&p->chip->mixer_lock, flags); 910 mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV); 911 mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1); 912 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7); 913 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7); 914 915 spin_lock(&p->chip->reg_lock); 916 if (p->running & SNDRV_SB_CSP_ST_QSOUND) { 917 set_codec_parameter(p->chip, 0xe0, 0x01); 918 /* disable QSound decoder */ 919 set_codec_parameter(p->chip, 0x00, 0x00); 920 set_codec_parameter(p->chip, 0x01, 0x00); 921 922 p->running &= ~SNDRV_SB_CSP_ST_QSOUND; 923 } 924 result = set_mode_register(p->chip, 0xc0); /* c0 = STOP */ 925 spin_unlock(&p->chip->reg_lock); 926 927 /* restore PCM volume */ 928 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL); 929 snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR); 930 spin_unlock_irqrestore(&p->chip->mixer_lock, flags); 931 932 if (!(result)) 933 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING); 934 return result; 935 } 936 937 /* 938 * pause CSP codec and hold DMA transfer 939 */ 940 static int snd_sb_csp_pause(struct snd_sb_csp * p) 941 { 942 int result; 943 unsigned long flags; 944 945 if (!(p->running & SNDRV_SB_CSP_ST_RUNNING)) 946 return -EBUSY; 947 948 spin_lock_irqsave(&p->chip->reg_lock, flags); 949 result = set_codec_parameter(p->chip, 0x80, 0xff); 950 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 951 if (!(result)) 952 p->running |= SNDRV_SB_CSP_ST_PAUSED; 953 954 return result; 955 } 956 957 /* 958 * restart CSP codec and resume DMA transfer 959 */ 960 static int snd_sb_csp_restart(struct snd_sb_csp * p) 961 { 962 int result; 963 unsigned long flags; 964 965 if (!(p->running & SNDRV_SB_CSP_ST_PAUSED)) 966 return -EBUSY; 967 968 spin_lock_irqsave(&p->chip->reg_lock, flags); 969 result = set_codec_parameter(p->chip, 0x80, 0x00); 970 spin_unlock_irqrestore(&p->chip->reg_lock, flags); 971 if (!(result)) 972 p->running &= ~SNDRV_SB_CSP_ST_PAUSED; 973 974 return result; 975 } 976 977 /* ------------------------------ */ 978 979 /* 980 * QSound mixer control for PCM 981 */ 982 983 #define snd_sb_qsound_switch_info snd_ctl_boolean_mono_info 984 985 static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 986 { 987 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); 988 989 ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0; 990 return 0; 991 } 992 993 static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 994 { 995 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); 996 unsigned long flags; 997 int change; 998 unsigned char nval; 999 1000 nval = ucontrol->value.integer.value[0] & 0x01; 1001 spin_lock_irqsave(&p->q_lock, flags); 1002 change = p->q_enabled != nval; 1003 p->q_enabled = nval; 1004 spin_unlock_irqrestore(&p->q_lock, flags); 1005 return change; 1006 } 1007 1008 static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1009 { 1010 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 1011 uinfo->count = 2; 1012 uinfo->value.integer.min = 0; 1013 uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; 1014 return 0; 1015 } 1016 1017 static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1018 { 1019 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); 1020 unsigned long flags; 1021 1022 spin_lock_irqsave(&p->q_lock, flags); 1023 ucontrol->value.integer.value[0] = p->qpos_left; 1024 ucontrol->value.integer.value[1] = p->qpos_right; 1025 spin_unlock_irqrestore(&p->q_lock, flags); 1026 return 0; 1027 } 1028 1029 static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 1030 { 1031 struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol); 1032 unsigned long flags; 1033 int change; 1034 unsigned char nval1, nval2; 1035 1036 nval1 = ucontrol->value.integer.value[0]; 1037 if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) 1038 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; 1039 nval2 = ucontrol->value.integer.value[1]; 1040 if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT) 1041 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT; 1042 spin_lock_irqsave(&p->q_lock, flags); 1043 change = p->qpos_left != nval1 || p->qpos_right != nval2; 1044 p->qpos_left = nval1; 1045 p->qpos_right = nval2; 1046 p->qpos_changed = change; 1047 spin_unlock_irqrestore(&p->q_lock, flags); 1048 return change; 1049 } 1050 1051 static struct snd_kcontrol_new snd_sb_qsound_switch = { 1052 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1053 .name = "3D Control - Switch", 1054 .info = snd_sb_qsound_switch_info, 1055 .get = snd_sb_qsound_switch_get, 1056 .put = snd_sb_qsound_switch_put 1057 }; 1058 1059 static struct snd_kcontrol_new snd_sb_qsound_space = { 1060 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1061 .name = "3D Control - Space", 1062 .info = snd_sb_qsound_space_info, 1063 .get = snd_sb_qsound_space_get, 1064 .put = snd_sb_qsound_space_put 1065 }; 1066 1067 static int snd_sb_qsound_build(struct snd_sb_csp * p) 1068 { 1069 struct snd_card *card; 1070 int err; 1071 1072 snd_assert(p != NULL, return -EINVAL); 1073 1074 card = p->chip->card; 1075 p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2; 1076 p->qpos_changed = 0; 1077 1078 spin_lock_init(&p->q_lock); 1079 1080 if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0) 1081 goto __error; 1082 if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0) 1083 goto __error; 1084 1085 return 0; 1086 1087 __error: 1088 snd_sb_qsound_destroy(p); 1089 return err; 1090 } 1091 1092 static void snd_sb_qsound_destroy(struct snd_sb_csp * p) 1093 { 1094 struct snd_card *card; 1095 unsigned long flags; 1096 1097 snd_assert(p != NULL, return); 1098 1099 card = p->chip->card; 1100 1101 down_write(&card->controls_rwsem); 1102 if (p->qsound_switch) 1103 snd_ctl_remove(card, p->qsound_switch); 1104 if (p->qsound_space) 1105 snd_ctl_remove(card, p->qsound_space); 1106 up_write(&card->controls_rwsem); 1107 1108 /* cancel pending transfer of QSound parameters */ 1109 spin_lock_irqsave (&p->q_lock, flags); 1110 p->qpos_changed = 0; 1111 spin_unlock_irqrestore (&p->q_lock, flags); 1112 } 1113 1114 /* 1115 * Transfer qsound parameters to CSP, 1116 * function should be called from interrupt routine 1117 */ 1118 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p) 1119 { 1120 int err = -ENXIO; 1121 1122 spin_lock(&p->q_lock); 1123 if (p->running & SNDRV_SB_CSP_ST_QSOUND) { 1124 set_codec_parameter(p->chip, 0xe0, 0x01); 1125 /* left channel */ 1126 set_codec_parameter(p->chip, 0x00, p->qpos_left); 1127 set_codec_parameter(p->chip, 0x02, 0x00); 1128 /* right channel */ 1129 set_codec_parameter(p->chip, 0x00, p->qpos_right); 1130 set_codec_parameter(p->chip, 0x03, 0x00); 1131 err = 0; 1132 } 1133 p->qpos_changed = 0; 1134 spin_unlock(&p->q_lock); 1135 return err; 1136 } 1137 1138 /* ------------------------------ */ 1139 1140 /* 1141 * proc interface 1142 */ 1143 static int init_proc_entry(struct snd_sb_csp * p, int device) 1144 { 1145 char name[16]; 1146 struct snd_info_entry *entry; 1147 sprintf(name, "cspD%d", device); 1148 if (! snd_card_proc_new(p->chip->card, name, &entry)) 1149 snd_info_set_text_ops(entry, p, info_read); 1150 return 0; 1151 } 1152 1153 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) 1154 { 1155 struct snd_sb_csp *p = entry->private_data; 1156 1157 snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f)); 1158 snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'), 1159 ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'), 1160 ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'), 1161 ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-')); 1162 if (p->running & SNDRV_SB_CSP_ST_LOADED) { 1163 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr); 1164 snd_iprintf(buffer, "Sample rates: "); 1165 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) { 1166 snd_iprintf(buffer, "All\n"); 1167 } else { 1168 snd_iprintf(buffer, "%s%s%s%s\n", 1169 ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""), 1170 ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""), 1171 ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""), 1172 ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : "")); 1173 } 1174 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) { 1175 snd_iprintf(buffer, "QSound decoder %sabled\n", 1176 p->q_enabled ? "en" : "dis"); 1177 } else { 1178 snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n", 1179 p->acc_format, 1180 ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"), 1181 ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"), 1182 ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"), 1183 ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"), 1184 ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"), 1185 ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-")); 1186 } 1187 } 1188 if (p->running & SNDRV_SB_CSP_ST_AUTO) { 1189 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n"); 1190 } 1191 if (p->running & SNDRV_SB_CSP_ST_RUNNING) { 1192 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n", 1193 ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8), 1194 ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo")); 1195 } 1196 if (p->running & SNDRV_SB_CSP_ST_QSOUND) { 1197 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n", 1198 p->qpos_left, p->qpos_right); 1199 } 1200 } 1201 1202 /* */ 1203 1204 EXPORT_SYMBOL(snd_sb_csp_new); 1205 1206 /* 1207 * INIT part 1208 */ 1209 1210 static int __init alsa_sb_csp_init(void) 1211 { 1212 return 0; 1213 } 1214 1215 static void __exit alsa_sb_csp_exit(void) 1216 { 1217 } 1218 1219 module_init(alsa_sb_csp_init) 1220 module_exit(alsa_sb_csp_exit) 1221