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