sound/isa/sb/sb16_csp.c

   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 #define chip_t snd_sb_csp_t
  37
  38 MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
  39 MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor");
  40 MODULE_LICENSE("GPL");
  41 MODULE_CLASSES("{sound}");
  42
  43 #ifdef SNDRV_LITTLE_ENDIAN
  44 #define CSP_HDR_VALUE(a,b,c,d)  ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
  45 #else
  46 #define CSP_HDR_VALUE(a,b,c,d)  ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
  47 #endif
  48 #define LE_SHORT(v)             le16_to_cpu(v)
  49 #define LE_INT(v)               le32_to_cpu(v)
  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 typedef struct riff_header {
  63         __u32 name;
  64         __u32 len;
  65 } riff_header_t;
  66
  67 typedef struct desc_header {
  68         riff_header_t info;
  69         __u16 func_nr;
  70         __u16 VOC_type;
  71         __u16 flags_play_rec;
  72         __u16 flags_16bit_8bit;
  73         __u16 flags_stereo_mono;
  74         __u16 flags_rates;
  75 } desc_header_t;
  76
  77 /*
  78  * prototypes
  79  */
  80 static void snd_sb_csp_free(snd_hwdep_t *hw);
  81 static int snd_sb_csp_open(snd_hwdep_t * hw, struct file *file);
  82 static int snd_sb_csp_ioctl(snd_hwdep_t * hw, struct file *file, unsigned int cmd, unsigned long arg);
  83 static int snd_sb_csp_release(snd_hwdep_t * hw, struct file *file);
  84
  85 static int csp_detect(sb_t *chip, int *version);
  86 static int set_codec_parameter(sb_t *chip, unsigned char par, unsigned char val);
  87 static int set_register(sb_t *chip, unsigned char reg, unsigned char val);
  88 static int read_register(sb_t *chip, unsigned char reg);
  89 static int set_mode_register(sb_t *chip, unsigned char mode);
  90 static int get_version(sb_t *chip);
  91
  92 static int snd_sb_csp_riff_load(snd_sb_csp_t * p, snd_sb_csp_microcode_t * code);
  93 static int snd_sb_csp_unload(snd_sb_csp_t * p);
  94 static int snd_sb_csp_load(snd_sb_csp_t * p, const unsigned char *buf, int size, int load_flags);
  95 static int snd_sb_csp_autoload(snd_sb_csp_t * p, int pcm_sfmt, int play_rec_mode);
  96 static int snd_sb_csp_check_version(snd_sb_csp_t * p);
  97
  98 static int snd_sb_csp_use(snd_sb_csp_t * p);
  99 static int snd_sb_csp_unuse(snd_sb_csp_t * p);
 100 static int snd_sb_csp_start(snd_sb_csp_t * p, int sample_width, int channels);
 101 static int snd_sb_csp_stop(snd_sb_csp_t * p);
 102 static int snd_sb_csp_pause(snd_sb_csp_t * p);
 103 static int snd_sb_csp_restart(snd_sb_csp_t * p);
 104
 105 static int snd_sb_qsound_build(snd_sb_csp_t * p);
 106 static void snd_sb_qsound_destroy(snd_sb_csp_t * p);
 107 static int snd_sb_csp_qsound_transfer(snd_sb_csp_t * p);
 108
 109 static int init_proc_entry(snd_sb_csp_t * p, int device);
 110 static void info_read(snd_info_entry_t *entry, snd_info_buffer_t * buffer);
 111
 112 /*
 113  * Detect CSP chip and create a new instance
 114  */
 115 int snd_sb_csp_new(sb_t *chip, int device, snd_hwdep_t ** rhwdep)
 116 {
 117         snd_sb_csp_t *p;
 118         int version, err;
 119         snd_hwdep_t *hw;
 120
 121         if (rhwdep)
 122                 *rhwdep = NULL;
 123
 124         if (csp_detect(chip, &version))
 125                 return -ENODEV;
 126
 127         if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0)
 128                 return err;
 129
 130         if ((p = snd_magic_kcalloc(snd_sb_csp_t, 0, GFP_KERNEL)) == NULL) {
 131                 snd_device_free(chip->card, hw);
 132                 return -ENOMEM;
 133         }
 134         p->chip = chip;
 135         p->version = version;
 136
 137         /* CSP operators */
 138         p->ops.csp_use = snd_sb_csp_use;
 139         p->ops.csp_unuse = snd_sb_csp_unuse;
 140         p->ops.csp_autoload = snd_sb_csp_autoload;
 141         p->ops.csp_start = snd_sb_csp_start;
 142         p->ops.csp_stop = snd_sb_csp_stop;
 143         p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer;
 144
 145         init_MUTEX(&p->access_mutex);
 146         sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f));
 147         hw->iface = SNDRV_HWDEP_IFACE_SB16CSP;
 148         hw->private_data = p;
 149         hw->private_free = snd_sb_csp_free;
 150
 151         /* operators - only write/ioctl */
 152         hw->ops.open = snd_sb_csp_open;
 153         hw->ops.ioctl = snd_sb_csp_ioctl;
 154         hw->ops.release = snd_sb_csp_release;
 155
 156         /* create a proc entry */
 157         init_proc_entry(p, device);
 158         if (rhwdep)
 159                 *rhwdep = hw;
 160         return 0;
 161 }
 162
 163 /*
 164  * free_private for hwdep instance
 165  */
 166 static void snd_sb_csp_free(snd_hwdep_t *hwdep)
 167 {
 168         snd_sb_csp_t *p = snd_magic_cast(snd_sb_csp_t, hwdep->private_data, return);
 169         if (p) {
 170                 if (p->running & SNDRV_SB_CSP_ST_RUNNING)
 171                         snd_sb_csp_stop(p);
 172                 snd_magic_kfree(p);
 173         }
 174 }
 175
 176 /* ------------------------------ */
 177
 178 /*
 179  * open the device exclusively
 180  */
 181 static int snd_sb_csp_open(snd_hwdep_t * hw, struct file *file)
 182 {
 183         snd_sb_csp_t *p = snd_magic_cast(snd_sb_csp_t, hw->private_data, return -ENXIO);
 184         return (snd_sb_csp_use(p));
 185 }
 186
 187 /*
 188  * ioctl for hwdep device:
 189  */
 190 static int snd_sb_csp_ioctl(snd_hwdep_t * hw, struct file *file, unsigned int cmd, unsigned long arg)
 191 {
 192         snd_sb_csp_t *p = snd_magic_cast(snd_sb_csp_t, hw->private_data, return -ENXIO);
 193         snd_sb_csp_info_t info;
 194         snd_sb_csp_start_t start_info;
 195         int err;
 196
 197         snd_assert(p != NULL, return -EINVAL);
 198
 199         if (snd_sb_csp_check_version(p))
 200                 return -ENODEV;
 201
 202         switch (cmd) {
 203                 /* get information */
 204         case SNDRV_SB_CSP_IOCTL_INFO:
 205                 *info.codec_name = *p->codec_name;
 206                 info.func_nr = p->func_nr;
 207                 info.acc_format = p->acc_format;
 208                 info.acc_channels = p->acc_channels;
 209                 info.acc_width = p->acc_width;
 210                 info.acc_rates = p->acc_rates;
 211                 info.csp_mode = p->mode;
 212                 info.run_channels = p->run_channels;
 213                 info.run_width = p->run_width;
 214                 info.version = p->version;
 215                 info.state = p->running;
 216                 if (copy_to_user((void *) arg, &info, sizeof(info)))
 217                         err = -EFAULT;
 218                 else
 219                         err = 0;
 220                 break;
 221
 222                 /* load CSP microcode */
 223         case SNDRV_SB_CSP_IOCTL_LOAD_CODE:
 224                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
 225                        -EBUSY : snd_sb_csp_riff_load(p, (snd_sb_csp_microcode_t *) arg));
 226                 break;
 227         case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE:
 228                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
 229                        -EBUSY : snd_sb_csp_unload(p));
 230                 break;
 231
 232                 /* change CSP running state */
 233         case SNDRV_SB_CSP_IOCTL_START:
 234                 if (copy_from_user(&start_info, (void *) arg, sizeof(start_info)))
 235                         err = -EFAULT;
 236                 else
 237                         err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels);
 238                 break;
 239         case SNDRV_SB_CSP_IOCTL_STOP:
 240                 err = snd_sb_csp_stop(p);
 241                 break;
 242         case SNDRV_SB_CSP_IOCTL_PAUSE:
 243                 err = snd_sb_csp_pause(p);
 244                 break;
 245         case SNDRV_SB_CSP_IOCTL_RESTART:
 246                 err = snd_sb_csp_restart(p);
 247                 break;
 248         default:
 249                 err = -ENOTTY;
 250                 break;
 251         }
 252
 253         return err;
 254 }
 255
 256 /*
 257  * close the device
 258  */
 259 static int snd_sb_csp_release(snd_hwdep_t * hw, struct file *file)
 260 {
 261         snd_sb_csp_t *p = snd_magic_cast(snd_sb_csp_t, hw->private_data, return -ENXIO);
 262         return (snd_sb_csp_unuse(p));
 263 }
 264
 265 /* ------------------------------ */
 266
 267 /*
 268  * acquire device
 269  */
 270 static int snd_sb_csp_use(snd_sb_csp_t * p)
 271 {
 272         down(&p->access_mutex);
 273         if (p->used) {
 274                 up(&p->access_mutex);
 275                 return -EAGAIN;
 276         }
 277         p->used++;
 278         up(&p->access_mutex);
 279
 280         return 0;
 281
 282 }
 283
 284 /*
 285  * release device
 286  */
 287 static int snd_sb_csp_unuse(snd_sb_csp_t * p)
 288 {
 289         down(&p->access_mutex);
 290         p->used--;
 291         up(&p->access_mutex);
 292
 293         return 0;
 294 }
 295
 296 /*
 297  * load microcode via ioctl:
 298  * code is user-space pointer
 299  */
 300 static int snd_sb_csp_riff_load(snd_sb_csp_t * p, snd_sb_csp_microcode_t * mcode)
 301 {
 302         snd_sb_csp_mc_header_t info;
 303
 304         unsigned char *data_ptr, *data_end;
 305         unsigned short func_nr = 0;
 306
 307         riff_header_t file_h, item_h, code_h;
 308         __u32 item_type;
 309         desc_header_t funcdesc_h;
 310
 311         unsigned long flags;
 312         int err;
 313
 314         if (copy_from_user(&info, mcode, sizeof(info)))
 315                 return -EFAULT;
 316         data_ptr = mcode->data;
 317
 318         if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
 319                 return -EFAULT;
 320         if ((file_h.name != RIFF_HEADER) ||
 321             (LE_INT(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
 322                 snd_printd("%s: Invalid RIFF header\n", __FUNCTION__);
 323                 return -EINVAL;
 324         }
 325         data_ptr += sizeof(file_h);
 326         data_end = data_ptr + LE_INT(file_h.len);
 327
 328         if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
 329                 return -EFAULT;
 330         if (item_type != CSP__HEADER) {
 331                 snd_printd("%s: Invalid RIFF file type\n", __FUNCTION__);
 332                 return -EINVAL;
 333         }
 334         data_ptr += sizeof (item_type);
 335
 336         for (; data_ptr < data_end; data_ptr += LE_INT(item_h.len)) {
 337                 if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
 338                         return -EFAULT;
 339                 data_ptr += sizeof(item_h);
 340                 if (item_h.name != LIST_HEADER)
 341                         continue;
 342
 343                 if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
 344                          return -EFAULT;
 345                 switch (item_type) {
 346                 case FUNC_HEADER:
 347                         if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
 348                                 return -EFAULT;
 349                         func_nr = LE_SHORT(funcdesc_h.func_nr);
 350                         break;
 351                 case CODE_HEADER:
 352                         if (func_nr != info.func_req)
 353                                 break;  /* not required function, try next */
 354                         data_ptr += sizeof(item_type);
 355
 356                         /* destroy QSound mixer element */
 357                         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
 358                                 snd_sb_qsound_destroy(p);
 359                         }
 360                         /* Clear all flags */
 361                         p->running = 0;
 362                         p->mode = 0;
 363
 364                         /* load microcode blocks */
 365                         for (;;) {
 366                                 if (data_ptr >= data_end)
 367                                         return -EINVAL;
 368                                 if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
 369                                         return -EFAULT;
 370
 371                                 /* init microcode blocks */
 372                                 if (code_h.name != INIT_HEADER)
 373                                         break;
 374                                 data_ptr += sizeof(code_h);
 375                                 err = snd_sb_csp_load(p, data_ptr, LE_INT(code_h.len),
 376                                                       SNDRV_SB_CSP_LOAD_INITBLOCK | SNDRV_SB_CSP_LOAD_FROMUSER);
 377                                 if (err)
 378                                         return err;
 379                                 data_ptr += LE_INT(code_h.len);
 380                         }
 381                         /* main microcode block */
 382                         if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
 383                                 return -EFAULT;
 384
 385                         if (code_h.name != MAIN_HEADER) {
 386                                 snd_printd("%s: Missing 'main' microcode\n", __FUNCTION__);
 387                                 return -EINVAL;
 388                         }
 389                         data_ptr += sizeof(code_h);
 390                         err = snd_sb_csp_load(p, data_ptr, LE_INT(code_h.len),
 391                                               SNDRV_SB_CSP_LOAD_FROMUSER);
 392                         if (err)
 393                                 return err;
 394
 395                         /* fill in codec header */
 396                         strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name));
 397                         p->func_nr = func_nr;
 398                         p->mode = LE_SHORT(funcdesc_h.flags_play_rec);
 399                         switch (LE_SHORT(funcdesc_h.VOC_type)) {
 400                         case 0x0001:    /* QSound decoder */
 401                                 if (LE_SHORT(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 402                                         if (snd_sb_qsound_build(p) == 0)
 403                                                 /* set QSound flag and clear all other mode flags */
 404                                                 p->mode = SNDRV_SB_CSP_MODE_QSOUND;
 405                                 }
 406                                 p->acc_format = 0;
 407                                 break;
 408                         case 0x0006:    /* A Law codec */
 409                                 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 410                                 break;
 411                         case 0x0007:    /* Mu Law codec */
 412                                 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 413                                 break;
 414                         case 0x0011:    /* what Creative thinks is IMA ADPCM codec */
 415                         case 0x0200:    /* Creative ADPCM codec */
 416                                 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 417                                 break;
 418                         case    201:    /* Text 2 Speech decoder */
 419                                 /* TODO: Text2Speech handling routines */
 420                                 p->acc_format = 0;
 421                                 break;
 422                         case 0x0202:    /* Fast Speech 8 codec */
 423                         case 0x0203:    /* Fast Speech 10 codec */
 424                                 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL;
 425                                 break;
 426                         default:        /* other codecs are unsupported */
 427                                 p->acc_format = p->acc_width = p->acc_rates = 0;
 428                                 p->mode = 0;
 429                                 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
 430                                            __FUNCTION__,
 431                                            LE_SHORT(funcdesc_h.VOC_type));
 432                                 return -EINVAL;
 433                         }
 434                         p->acc_channels = LE_SHORT(funcdesc_h.flags_stereo_mono);
 435                         p->acc_width = LE_SHORT(funcdesc_h.flags_16bit_8bit);
 436                         p->acc_rates = LE_SHORT(funcdesc_h.flags_rates);
 437
 438                         /* Decouple CSP from IRQ and DMAREQ lines */
 439                         spin_lock_irqsave(&p->chip->reg_lock, flags);
 440                         set_mode_register(p->chip, 0xfc);
 441                         set_mode_register(p->chip, 0x00);
 442                         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 443
 444                         /* finished loading successfully */
 445                         p->running = SNDRV_SB_CSP_ST_LOADED;    /* set LOADED flag */
 446                         return 0;
 447                 }
 448         }
 449         snd_printd("%s: Function #%d not found\n", __FUNCTION__, info.func_req);
 450         return -EINVAL;
 451 }
 452
 453 /*
 454  * unload CSP microcode
 455  */
 456 static int snd_sb_csp_unload(snd_sb_csp_t * p)
 457 {
 458         if (p->running & SNDRV_SB_CSP_ST_RUNNING)
 459                 return -EBUSY;
 460         if (!(p->running & SNDRV_SB_CSP_ST_LOADED))
 461                 return -ENXIO;
 462
 463         /* clear supported formats */
 464         p->acc_format = 0;
 465         p->acc_channels = p->acc_width = p->acc_rates = 0;
 466         /* destroy QSound mixer element */
 467         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
 468                 snd_sb_qsound_destroy(p);
 469         }
 470         /* clear all flags */
 471         p->running = 0;
 472         p->mode = 0;
 473         return 0;
 474 }
 475
 476 /*
 477  * send command sequence to DSP
 478  */
 479 static inline int command_seq(sb_t *chip, const unsigned char *seq, int size)
 480 {
 481         int i;
 482         for (i = 0; i < size; i++) {
 483                 if (!snd_sbdsp_command(chip, seq[i]))
 484                         return -EIO;
 485         }
 486         return 0;
 487 }
 488
 489 /*
 490  * set CSP codec parameter
 491  */
 492 static int set_codec_parameter(sb_t *chip, unsigned char par, unsigned char val)
 493 {
 494         unsigned char dsp_cmd[3];
 495
 496         dsp_cmd[0] = 0x05;      /* CSP set codec parameter */
 497         dsp_cmd[1] = val;       /* Parameter value */
 498         dsp_cmd[2] = par;       /* Parameter */
 499         command_seq(chip, dsp_cmd, 3);
 500         snd_sbdsp_command(chip, 0x03);  /* DSP read? */
 501         if (snd_sbdsp_get_byte(chip) != par)
 502                 return -EIO;
 503         return 0;
 504 }
 505
 506 /*
 507  * set CSP register
 508  */
 509 static int set_register(sb_t *chip, unsigned char reg, unsigned char val)
 510 {
 511         unsigned char dsp_cmd[3];
 512
 513         dsp_cmd[0] = 0x0e;      /* CSP set register */
 514         dsp_cmd[1] = reg;       /* CSP Register */
 515         dsp_cmd[2] = val;       /* value */
 516         return command_seq(chip, dsp_cmd, 3);
 517 }
 518
 519 /*
 520  * read CSP register
 521  * return < 0 -> error
 522  */
 523 static int read_register(sb_t *chip, unsigned char reg)
 524 {
 525         unsigned char dsp_cmd[2];
 526
 527         dsp_cmd[0] = 0x0f;      /* CSP read register */
 528         dsp_cmd[1] = reg;       /* CSP Register */
 529         command_seq(chip, dsp_cmd, 2);
 530         return snd_sbdsp_get_byte(chip);        /* Read DSP value */
 531 }
 532
 533 /*
 534  * set CSP mode register
 535  */
 536 static int set_mode_register(sb_t *chip, unsigned char mode)
 537 {
 538         unsigned char dsp_cmd[2];
 539
 540         dsp_cmd[0] = 0x04;      /* CSP set mode register */
 541         dsp_cmd[1] = mode;      /* mode */
 542         return command_seq(chip, dsp_cmd, 2);
 543 }
 544
 545 /*
 546  * Detect CSP
 547  * return 0 if CSP exists.
 548  */
 549 static int csp_detect(sb_t *chip, int *version)
 550 {
 551         unsigned char csp_test1, csp_test2;
 552         unsigned long flags;
 553         int result = -ENODEV;
 554
 555         spin_lock_irqsave(&chip->reg_lock, flags);
 556
 557         set_codec_parameter(chip, 0x00, 0x00);
 558         set_mode_register(chip, 0xfc);          /* 0xfc = ?? */
 559
 560         csp_test1 = read_register(chip, 0x83);
 561         set_register(chip, 0x83, ~csp_test1);
 562         csp_test2 = read_register(chip, 0x83);
 563         if (csp_test2 != (csp_test1 ^ 0xff))
 564                 goto __fail;
 565
 566         set_register(chip, 0x83, csp_test1);
 567         csp_test2 = read_register(chip, 0x83);
 568         if (csp_test2 != csp_test1)
 569                 goto __fail;
 570
 571         set_mode_register(chip, 0x00);          /* 0x00 = ? */
 572
 573         *version = get_version(chip);
 574         snd_sbdsp_reset(chip);  /* reset DSP after getversion! */
 575         if (*version >= 0x10 && *version <= 0x1f)
 576                 result = 0;             /* valid version id */
 577
 578       __fail:
 579         spin_unlock_irqrestore(&chip->reg_lock, flags);
 580         return result;
 581 }
 582
 583 /*
 584  * get CSP version number
 585  */
 586 static int get_version(sb_t *chip)
 587 {
 588         unsigned char dsp_cmd[2];
 589
 590         dsp_cmd[0] = 0x08;      /* SB_DSP_!something! */
 591         dsp_cmd[1] = 0x03;      /* get chip version id? */
 592         command_seq(chip, dsp_cmd, 2);
 593
 594         return (snd_sbdsp_get_byte(chip));
 595 }
 596
 597 /*
 598  * check if the CSP version is valid
 599  */
 600 static int snd_sb_csp_check_version(snd_sb_csp_t * p)
 601 {
 602         if (p->version < 0x10 || p->version > 0x1f) {
 603                 snd_printd("%s: Invalid CSP version: 0x%x\n", __FUNCTION__, p->version);
 604                 return 1;
 605         }
 606         return 0;
 607 }
 608
 609 /*
 610  * download microcode to CSP (microcode should have one "main" block).
 611  */
 612 static int snd_sb_csp_load(snd_sb_csp_t * p, const unsigned char *buf, int size, int load_flags)
 613 {
 614         int status, i;
 615         int err;
 616         int result = -EIO;
 617         unsigned long flags;
 618
 619         spin_lock_irqsave(&p->chip->reg_lock, flags);
 620         snd_sbdsp_command(p->chip, 0x01);       /* CSP download command */
 621         if (snd_sbdsp_get_byte(p->chip)) {
 622                 snd_printd("%s: Download command failed\n", __FUNCTION__);
 623                 goto __fail;
 624         }
 625         /* Send CSP low byte (size - 1) */
 626         snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
 627         /* Send high byte */
 628         snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8));
 629         /* send microcode sequence */
 630         if (load_flags & SNDRV_SB_CSP_LOAD_FROMUSER) {
 631                 /* copy microcode from user space */
 632                 unsigned char *kbuf, *_kbuf;
 633                 _kbuf = kbuf = kmalloc (size, GFP_KERNEL);
 634                 if (copy_from_user(kbuf, buf, size)) {
 635                         result = -EFAULT;
 636                         kfree (_kbuf);
 637                         goto __fail;
 638                 }
 639                 while (size--) {
 640                         if (!snd_sbdsp_command(p->chip, *kbuf++)) {
 641                                 kfree (_kbuf);
 642                                 goto __fail;
 643                         }
 644                 }
 645                 kfree (_kbuf);
 646         } else {
 647                 /* load from kernel space */
 648                 while (size--) {
 649                         if (!snd_sbdsp_command(p->chip, *buf++))
 650                                 goto __fail;
 651                 }
 652         }
 653         if (snd_sbdsp_get_byte(p->chip))
 654                 goto __fail;
 655
 656         if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
 657                 i = 0;
 658                 /* some codecs (FastSpeech) take some time to initialize */
 659                 while (1) {
 660                         snd_sbdsp_command(p->chip, 0x03);
 661                         status = snd_sbdsp_get_byte(p->chip);
 662                         if (status == 0x55 || ++i >= 10)
 663                                 break;
 664                         udelay (10);
 665                 }
 666                 if (status != 0x55) {
 667                         snd_printd("%s: Microcode initialization failed\n", __FUNCTION__);
 668                         goto __fail;
 669                 }
 670         } else {
 671                 /*
 672                  * Read mixer register SB_DSP4_DMASETUP after loading 'main' code.
 673                  * Start CSP chip if no 16bit DMA channel is set - some kind
 674                  * of autorun or perhaps a bugfix?
 675                  */
 676                 spin_lock(&p->chip->mixer_lock);
 677                 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
 678                 spin_unlock(&p->chip->mixer_lock);
 679                 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
 680                         err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
 681                                set_codec_parameter(p->chip, 0xff, 0x00));
 682                         snd_sbdsp_reset(p->chip);               /* really! */
 683                         if (err)
 684                                 goto __fail;
 685                         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 686                         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 687                 }
 688         }
 689         result = 0;
 690
 691       __fail:
 692         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 693         return result;
 694 }
 695
 696 #include "sb16_csp_codecs.h"
 697
 698 /*
 699  * autoload hardware codec if necessary
 700  * return 0 if CSP is loaded and ready to run (p->running != 0)
 701  */
 702 static int snd_sb_csp_autoload(snd_sb_csp_t * p, int pcm_sfmt, int play_rec_mode)
 703 {
 704         unsigned long flags;
 705         int err = 0;
 706
 707         /* if CSP is running or manually loaded then exit */
 708         if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED))
 709                 return -EBUSY;
 710
 711         /* autoload microcode only if requested hardware codec is not already loaded */
 712         if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
 713                 p->running = SNDRV_SB_CSP_ST_AUTO;
 714         } else {
 715                 switch (pcm_sfmt) {
 716                 case SNDRV_PCM_FORMAT_MU_LAW:
 717                         err = snd_sb_csp_load(p, &mulaw_main[0], sizeof(mulaw_main), 0);
 718                         p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 719                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 720                         break;
 721                 case SNDRV_PCM_FORMAT_A_LAW:
 722                         err = snd_sb_csp_load(p, &alaw_main[0], sizeof(alaw_main), 0);
 723                         p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 724                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 725                         break;
 726                 case SNDRV_PCM_FORMAT_IMA_ADPCM:
 727                         err = snd_sb_csp_load(p, &ima_adpcm_init[0], sizeof(ima_adpcm_init),
 728                                               SNDRV_SB_CSP_LOAD_INITBLOCK);
 729                         if (err)
 730                                 break;
 731                         if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 732                                 err = snd_sb_csp_load(p, &ima_adpcm_playback[0],
 733                                                       sizeof(ima_adpcm_playback), 0);
 734                                 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
 735                         } else {
 736                                 err = snd_sb_csp_load(p, &ima_adpcm_capture[0],
 737                                                       sizeof(ima_adpcm_capture), 0);
 738                                 p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
 739                         }
 740                         p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 741                         break;
 742                 default:
 743                         /* Decouple CSP from IRQ and DMAREQ lines */
 744                         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
 745                                 spin_lock_irqsave(&p->chip->reg_lock, flags);
 746                                 set_mode_register(p->chip, 0xfc);
 747                                 set_mode_register(p->chip, 0x00);
 748                                 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 749                                 p->running = 0;                 /* clear autoloaded flag */
 750                         }
 751                         return -EINVAL;
 752                 }
 753                 if (err) {
 754                         p->acc_format = 0;
 755                         p->acc_channels = p->acc_width = p->acc_rates = 0;
 756
 757                         p->running = 0;                         /* clear autoloaded flag */
 758                         p->mode = 0;
 759                         return (err);
 760                 } else {
 761                         p->running = SNDRV_SB_CSP_ST_AUTO;      /* set autoloaded flag */
 762                         p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT;       /* only 16 bit data */
 763                         p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
 764                         p->acc_rates = SNDRV_SB_CSP_RATE_ALL;   /* HW codecs accept all rates */
 765                 }
 766
 767         }
 768         return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
 769 }
 770
 771 /*
 772  * start CSP
 773  */
 774 static int snd_sb_csp_start(snd_sb_csp_t * p, int sample_width, int channels)
 775 {
 776         unsigned char s_type;   /* sample type */
 777         unsigned char mixL, mixR;
 778         int result = -EIO;
 779         unsigned long flags;
 780
 781         if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
 782                 snd_printd("%s: Microcode not loaded\n", __FUNCTION__);
 783                 return -ENXIO;
 784         }
 785         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
 786                 snd_printd("%s: CSP already running\n", __FUNCTION__);
 787                 return -EBUSY;
 788         }
 789         if (!(sample_width & p->acc_width)) {
 790                 snd_printd("%s: Unsupported PCM sample width\n", __FUNCTION__);
 791                 return -EINVAL;
 792         }
 793         if (!(channels & p->acc_channels)) {
 794                 snd_printd("%s: Invalid number of channels\n", __FUNCTION__);
 795                 return -EINVAL;
 796         }
 797
 798         /* Mute PCM volume */
 799         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 800         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 801         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 802         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 803         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 804
 805         spin_lock(&p->chip->reg_lock);
 806         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 807         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 808
 809         s_type = 0x00;
 810         if (channels == SNDRV_SB_CSP_MONO)
 811                 s_type = 0x11;  /* 000n 000n    (n = 1 if mono) */
 812         if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
 813                 s_type |= 0x22; /* 00dX 00dX    (d = 1 if 8 bit samples) */
 814
 815         if (set_codec_parameter(p->chip, 0x81, s_type)) {
 816                 snd_printd("%s: Set sample type command failed\n", __FUNCTION__);
 817                 goto __fail;
 818         }
 819         if (set_codec_parameter(p->chip, 0x80, 0x00)) {
 820                 snd_printd("%s: Codec start command failed\n", __FUNCTION__);
 821                 goto __fail;
 822         }
 823         p->run_width = sample_width;
 824         p->run_channels = channels;
 825
 826         p->running |= SNDRV_SB_CSP_ST_RUNNING;
 827
 828         if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
 829                 set_codec_parameter(p->chip, 0xe0, 0x01);
 830                 /* enable QSound decoder */
 831                 set_codec_parameter(p->chip, 0x00, 0xff);
 832                 set_codec_parameter(p->chip, 0x01, 0xff);
 833                 p->running |= SNDRV_SB_CSP_ST_QSOUND;
 834                 /* set QSound startup value */
 835                 snd_sb_csp_qsound_transfer(p);
 836         }
 837         result = 0;
 838
 839       __fail:
 840         spin_unlock(&p->chip->reg_lock);
 841
 842         /* restore PCM volume */
 843         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 844         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 845         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 846
 847         return result;
 848 }
 849
 850 /*
 851  * stop CSP
 852  */
 853 static int snd_sb_csp_stop(snd_sb_csp_t * p)
 854 {
 855         int result;
 856         unsigned char mixL, mixR;
 857         unsigned long flags;
 858
 859         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 860                 return 0;
 861
 862         /* Mute PCM volume */
 863         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 864         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 865         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 866         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 867         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 868
 869         spin_lock(&p->chip->reg_lock);
 870         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
 871                 set_codec_parameter(p->chip, 0xe0, 0x01);
 872                 /* disable QSound decoder */
 873                 set_codec_parameter(p->chip, 0x00, 0x00);
 874                 set_codec_parameter(p->chip, 0x01, 0x00);
 875
 876                 p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
 877         }
 878         result = set_mode_register(p->chip, 0xc0);      /* c0 = STOP */
 879         spin_unlock(&p->chip->reg_lock);
 880
 881         /* restore PCM volume */
 882         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 883         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 884         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 885
 886         if (!(result))
 887                 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
 888         return result;
 889 }
 890
 891 /*
 892  * pause CSP codec and hold DMA transfer
 893  */
 894 static int snd_sb_csp_pause(snd_sb_csp_t * p)
 895 {
 896         int result;
 897         unsigned long flags;
 898
 899         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 900                 return -EBUSY;
 901
 902         spin_lock_irqsave(&p->chip->reg_lock, flags);
 903         result = set_codec_parameter(p->chip, 0x80, 0xff);
 904         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 905         if (!(result))
 906                 p->running |= SNDRV_SB_CSP_ST_PAUSED;
 907
 908         return result;
 909 }
 910
 911 /*
 912  * restart CSP codec and resume DMA transfer
 913  */
 914 static int snd_sb_csp_restart(snd_sb_csp_t * p)
 915 {
 916         int result;
 917         unsigned long flags;
 918
 919         if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
 920                 return -EBUSY;
 921
 922         spin_lock_irqsave(&p->chip->reg_lock, flags);
 923         result = set_codec_parameter(p->chip, 0x80, 0x00);
 924         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 925         if (!(result))
 926                 p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
 927
 928         return result;
 929 }
 930
 931 /* ------------------------------ */
 932
 933 /*
 934  * QSound mixer control for PCM
 935  */
 936
 937 static int snd_sb_qsound_switch_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 938 {
 939         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 940         uinfo->count = 1;
 941         uinfo->value.integer.min = 0;
 942         uinfo->value.integer.max = 1;
 943         return 0;
 944 }
 945
 946 static int snd_sb_qsound_switch_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 947 {
 948         snd_sb_csp_t *p = snd_kcontrol_chip(kcontrol);
 949
 950         ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
 951         return 0;
 952 }
 953
 954 static int snd_sb_qsound_switch_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 955 {
 956         snd_sb_csp_t *p = snd_kcontrol_chip(kcontrol);
 957         unsigned long flags;
 958         int change;
 959         unsigned char nval;
 960
 961         nval = ucontrol->value.integer.value[0] & 0x01;
 962         spin_lock_irqsave(&p->q_lock, flags);
 963         change = p->q_enabled != nval;
 964         p->q_enabled = nval;
 965         spin_unlock_irqrestore(&p->q_lock, flags);
 966         return change;
 967 }
 968
 969 static int snd_sb_qsound_space_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 970 {
 971         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 972         uinfo->count = 2;
 973         uinfo->value.integer.min = 0;
 974         uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
 975         return 0;
 976 }
 977
 978 static int snd_sb_qsound_space_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 979 {
 980         snd_sb_csp_t *p = snd_kcontrol_chip(kcontrol);
 981         unsigned long flags;
 982
 983         spin_lock_irqsave(&p->q_lock, flags);
 984         ucontrol->value.integer.value[0] = p->qpos_left;
 985         ucontrol->value.integer.value[1] = p->qpos_right;
 986         spin_unlock_irqrestore(&p->q_lock, flags);
 987         return 0;
 988 }
 989
 990 static int snd_sb_qsound_space_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 991 {
 992         snd_sb_csp_t *p = snd_kcontrol_chip(kcontrol);
 993         unsigned long flags;
 994         int change;
 995         unsigned char nval1, nval2;
 996
 997         nval1 = ucontrol->value.integer.value[0];
 998         if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
 999                 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1000         nval2 = ucontrol->value.integer.value[1];
1001         if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1002                 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1003         spin_lock_irqsave(&p->q_lock, flags);
1004         change = p->qpos_left != nval1 || p->qpos_right != nval2;
1005         p->qpos_left = nval1;
1006         p->qpos_right = nval2;
1007         p->qpos_changed = change;
1008         spin_unlock_irqrestore(&p->q_lock, flags);
1009         return change;
1010 }
1011
1012 static snd_kcontrol_new_t snd_sb_qsound_switch = {
1013         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1014         .name = "3D Control - Switch",
1015         .info = snd_sb_qsound_switch_info,
1016         .get = snd_sb_qsound_switch_get,
1017         .put = snd_sb_qsound_switch_put
1018 };
1019
1020 static snd_kcontrol_new_t snd_sb_qsound_space = {
1021         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1022         .name = "3D Control - Space",
1023         .info = snd_sb_qsound_space_info,
1024         .get = snd_sb_qsound_space_get,
1025         .put = snd_sb_qsound_space_put
1026 };
1027
1028 static int snd_sb_qsound_build(snd_sb_csp_t * p)
1029 {
1030         snd_card_t * card;
1031         int err;
1032
1033         snd_assert(p != NULL, return -EINVAL);
1034
1035         card = p->chip->card;
1036         p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
1037         p->qpos_changed = 0;
1038
1039         spin_lock_init(&p->q_lock);
1040
1041         if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
1042                 goto __error;
1043         if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
1044                 goto __error;
1045
1046         return 0;
1047
1048      __error:
1049         snd_sb_qsound_destroy(p);
1050         return err;
1051 }
1052
1053 static void snd_sb_qsound_destroy(snd_sb_csp_t * p)
1054 {
1055         snd_card_t * card;
1056         unsigned long flags;
1057
1058         snd_assert(p != NULL, return);
1059
1060         card = p->chip->card;
1061
1062         down_write(&card->controls_rwsem);
1063         if (p->qsound_switch)
1064                 snd_ctl_remove(card, p->qsound_switch);
1065         if (p->qsound_space)
1066                 snd_ctl_remove(card, p->qsound_space);
1067         up_write(&card->controls_rwsem);
1068
1069         /* cancel pending transfer of QSound parameters */
1070         spin_lock_irqsave (&p->q_lock, flags);
1071         p->qpos_changed = 0;
1072         spin_unlock_irqrestore (&p->q_lock, flags);
1073 }
1074
1075 /*
1076  * Transfer qsound parameters to CSP,
1077  * function should be called from interrupt routine
1078  */
1079 static int snd_sb_csp_qsound_transfer(snd_sb_csp_t * p)
1080 {
1081         int err = -ENXIO;
1082
1083         spin_lock(&p->q_lock);
1084         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1085                 set_codec_parameter(p->chip, 0xe0, 0x01);
1086                 /* left channel */
1087                 set_codec_parameter(p->chip, 0x00, p->qpos_left);
1088                 set_codec_parameter(p->chip, 0x02, 0x00);
1089                 /* right channel */
1090                 set_codec_parameter(p->chip, 0x00, p->qpos_right);
1091                 set_codec_parameter(p->chip, 0x03, 0x00);
1092                 err = 0;
1093         }
1094         p->qpos_changed = 0;
1095         spin_unlock(&p->q_lock);
1096         return err;
1097 }
1098
1099 /* ------------------------------ */
1100
1101 /*
1102  * proc interface
1103  */
1104 static int init_proc_entry(snd_sb_csp_t * p, int device)
1105 {
1106         char name[16];
1107         snd_info_entry_t *entry;
1108         sprintf(name, "cspD%d", device);
1109         if (! snd_card_proc_new(p->chip->card, name, &entry))
1110                 snd_info_set_text_ops(entry, p, 1024, info_read);
1111         return 0;
1112 }
1113
1114 static void info_read(snd_info_entry_t *entry, snd_info_buffer_t * buffer)
1115 {
1116         snd_sb_csp_t *p = snd_magic_cast(snd_sb_csp_t, entry->private_data, return);
1117
1118         snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
1119         snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
1120                     ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
1121                     ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
1122                     ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
1123         if (p->running & SNDRV_SB_CSP_ST_LOADED) {
1124                 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
1125                 snd_iprintf(buffer, "Sample rates: ");
1126                 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
1127                         snd_iprintf(buffer, "All\n");
1128                 } else {
1129                         snd_iprintf(buffer, "%s%s%s%s\n",
1130                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
1131                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
1132                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
1133                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
1134                 }
1135                 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
1136                         snd_iprintf(buffer, "QSound decoder %sabled\n",
1137                                     p->q_enabled ? "en" : "dis");
1138                 } else {
1139                         snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1140                                     p->acc_format,
1141                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
1142                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
1143                                     ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
1144                                     ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
1145                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
1146                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
1147                 }
1148         }
1149         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
1150                 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1151         }
1152         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
1153                 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
1154                             ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
1155                             ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
1156         }
1157         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1158                 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
1159                             p->qpos_left, p->qpos_right);
1160         }
1161 }
1162
1163 /* */
1164
1165 EXPORT_SYMBOL(snd_sb_csp_new);
1166
1167 /*
1168  * INIT part
1169  */
1170
1171 static int __init alsa_sb_csp_init(void)
1172 {
1173         return 0;
1174 }
1175
1176 static void __exit alsa_sb_csp_exit(void)
1177 {
1178 }
1179
1180 module_init(alsa_sb_csp_init)
1181 module_exit(alsa_sb_csp_exit)