git.oblomov.eu Git - linux-2.6/blob - 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 <linux/delay.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <sound/core.h>
  30 #include <sound/control.h>
  31 #include <sound/info.h>
  32 #include <sound/sb16_csp.h>
  33 #include <sound/initval.h>
  34
  35 MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
  36 MODULE_DESCRIPTION("ALSA driver for SB16 Creative Signal Processor");
  37 MODULE_LICENSE("GPL");
  38 MODULE_FIRMWARE("sb16/mulaw_main.csp");
  39 MODULE_FIRMWARE("sb16/alaw_main.csp");
  40 MODULE_FIRMWARE("sb16/ima_adpcm_init.csp");
  41 MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp");
  42 MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp");
  43
  44 #ifdef SNDRV_LITTLE_ENDIAN
  45 #define CSP_HDR_VALUE(a,b,c,d)  ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
  46 #else
  47 #define CSP_HDR_VALUE(a,b,c,d)  ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
  48 #endif
  49
  50 #define RIFF_HEADER     CSP_HDR_VALUE('R', 'I', 'F', 'F')
  51 #define CSP__HEADER     CSP_HDR_VALUE('C', 'S', 'P', ' ')
  52 #define LIST_HEADER     CSP_HDR_VALUE('L', 'I', 'S', 'T')
  53 #define FUNC_HEADER     CSP_HDR_VALUE('f', 'u', 'n', 'c')
  54 #define CODE_HEADER     CSP_HDR_VALUE('c', 'o', 'd', 'e')
  55 #define INIT_HEADER     CSP_HDR_VALUE('i', 'n', 'i', 't')
  56 #define MAIN_HEADER     CSP_HDR_VALUE('m', 'a', 'i', 'n')
  57
  58 /*
  59  * RIFF data format
  60  */
  61 struct riff_header {
  62         __u32 name;
  63         __u32 len;
  64 };
  65
  66 struct desc_header {
  67         struct riff_header info;
  68         __u16 func_nr;
  69         __u16 VOC_type;
  70         __u16 flags_play_rec;
  71         __u16 flags_16bit_8bit;
  72         __u16 flags_stereo_mono;
  73         __u16 flags_rates;
  74 };
  75
  76 /*
  77  * prototypes
  78  */
  79 static void snd_sb_csp_free(struct snd_hwdep *hw);
  80 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file);
  81 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg);
  82 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file);
  83
  84 static int csp_detect(struct snd_sb *chip, int *version);
  85 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val);
  86 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val);
  87 static int read_register(struct snd_sb *chip, unsigned char reg);
  88 static int set_mode_register(struct snd_sb *chip, unsigned char mode);
  89 static int get_version(struct snd_sb *chip);
  90
  91 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
  92                                 struct snd_sb_csp_microcode __user * code);
  93 static int snd_sb_csp_unload(struct snd_sb_csp * p);
  94 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags);
  95 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode);
  96 static int snd_sb_csp_check_version(struct snd_sb_csp * p);
  97
  98 static int snd_sb_csp_use(struct snd_sb_csp * p);
  99 static int snd_sb_csp_unuse(struct snd_sb_csp * p);
 100 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels);
 101 static int snd_sb_csp_stop(struct snd_sb_csp * p);
 102 static int snd_sb_csp_pause(struct snd_sb_csp * p);
 103 static int snd_sb_csp_restart(struct snd_sb_csp * p);
 104
 105 static int snd_sb_qsound_build(struct snd_sb_csp * p);
 106 static void snd_sb_qsound_destroy(struct snd_sb_csp * p);
 107 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p);
 108
 109 static int init_proc_entry(struct snd_sb_csp * p, int device);
 110 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer);
 111
 112 /*
 113  * Detect CSP chip and create a new instance
 114  */
 115 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep)
 116 {
 117         struct snd_sb_csp *p;
 118         int uninitialized_var(version);
 119         int err;
 120         struct snd_hwdep *hw;
 121
 122         if (rhwdep)
 123                 *rhwdep = NULL;
 124
 125         if (csp_detect(chip, &version))
 126                 return -ENODEV;
 127
 128         if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0)
 129                 return err;
 130
 131         if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) {
 132                 snd_device_free(chip->card, hw);
 133                 return -ENOMEM;
 134         }
 135         p->chip = chip;
 136         p->version = version;
 137
 138         /* CSP operators */
 139         p->ops.csp_use = snd_sb_csp_use;
 140         p->ops.csp_unuse = snd_sb_csp_unuse;
 141         p->ops.csp_autoload = snd_sb_csp_autoload;
 142         p->ops.csp_start = snd_sb_csp_start;
 143         p->ops.csp_stop = snd_sb_csp_stop;
 144         p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer;
 145
 146         mutex_init(&p->access_mutex);
 147         sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f));
 148         hw->iface = SNDRV_HWDEP_IFACE_SB16CSP;
 149         hw->private_data = p;
 150         hw->private_free = snd_sb_csp_free;
 151
 152         /* operators - only write/ioctl */
 153         hw->ops.open = snd_sb_csp_open;
 154         hw->ops.ioctl = snd_sb_csp_ioctl;
 155         hw->ops.release = snd_sb_csp_release;
 156
 157         /* create a proc entry */
 158         init_proc_entry(p, device);
 159         if (rhwdep)
 160                 *rhwdep = hw;
 161         return 0;
 162 }
 163
 164 /*
 165  * free_private for hwdep instance
 166  */
 167 static void snd_sb_csp_free(struct snd_hwdep *hwdep)
 168 {
 169         int i;
 170         struct snd_sb_csp *p = hwdep->private_data;
 171         if (p) {
 172                 if (p->running & SNDRV_SB_CSP_ST_RUNNING)
 173                         snd_sb_csp_stop(p);
 174                 for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i)
 175                         release_firmware(p->csp_programs[i]);
 176                 kfree(p);
 177         }
 178 }
 179
 180 /* ------------------------------ */
 181
 182 /*
 183  * open the device exclusively
 184  */
 185 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file)
 186 {
 187         struct snd_sb_csp *p = hw->private_data;
 188         return (snd_sb_csp_use(p));
 189 }
 190
 191 /*
 192  * ioctl for hwdep device:
 193  */
 194 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg)
 195 {
 196         struct snd_sb_csp *p = hw->private_data;
 197         struct snd_sb_csp_info info;
 198         struct snd_sb_csp_start start_info;
 199         int err;
 200
 201         if (snd_BUG_ON(!p))
 202                 return -EINVAL;
 203
 204         if (snd_sb_csp_check_version(p))
 205                 return -ENODEV;
 206
 207         switch (cmd) {
 208                 /* get information */
 209         case SNDRV_SB_CSP_IOCTL_INFO:
 210                 *info.codec_name = *p->codec_name;
 211                 info.func_nr = p->func_nr;
 212                 info.acc_format = p->acc_format;
 213                 info.acc_channels = p->acc_channels;
 214                 info.acc_width = p->acc_width;
 215                 info.acc_rates = p->acc_rates;
 216                 info.csp_mode = p->mode;
 217                 info.run_channels = p->run_channels;
 218                 info.run_width = p->run_width;
 219                 info.version = p->version;
 220                 info.state = p->running;
 221                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
 222                         err = -EFAULT;
 223                 else
 224                         err = 0;
 225                 break;
 226
 227                 /* load CSP microcode */
 228         case SNDRV_SB_CSP_IOCTL_LOAD_CODE:
 229                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
 230                        -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg));
 231                 break;
 232         case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE:
 233                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
 234                        -EBUSY : snd_sb_csp_unload(p));
 235                 break;
 236
 237                 /* change CSP running state */
 238         case SNDRV_SB_CSP_IOCTL_START:
 239                 if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info)))
 240                         err = -EFAULT;
 241                 else
 242                         err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels);
 243                 break;
 244         case SNDRV_SB_CSP_IOCTL_STOP:
 245                 err = snd_sb_csp_stop(p);
 246                 break;
 247         case SNDRV_SB_CSP_IOCTL_PAUSE:
 248                 err = snd_sb_csp_pause(p);
 249                 break;
 250         case SNDRV_SB_CSP_IOCTL_RESTART:
 251                 err = snd_sb_csp_restart(p);
 252                 break;
 253         default:
 254                 err = -ENOTTY;
 255                 break;
 256         }
 257
 258         return err;
 259 }
 260
 261 /*
 262  * close the device
 263  */
 264 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file)
 265 {
 266         struct snd_sb_csp *p = hw->private_data;
 267         return (snd_sb_csp_unuse(p));
 268 }
 269
 270 /* ------------------------------ */
 271
 272 /*
 273  * acquire device
 274  */
 275 static int snd_sb_csp_use(struct snd_sb_csp * p)
 276 {
 277         mutex_lock(&p->access_mutex);
 278         if (p->used) {
 279                 mutex_unlock(&p->access_mutex);
 280                 return -EAGAIN;
 281         }
 282         p->used++;
 283         mutex_unlock(&p->access_mutex);
 284
 285         return 0;
 286
 287 }
 288
 289 /*
 290  * release device
 291  */
 292 static int snd_sb_csp_unuse(struct snd_sb_csp * p)
 293 {
 294         mutex_lock(&p->access_mutex);
 295         p->used--;
 296         mutex_unlock(&p->access_mutex);
 297
 298         return 0;
 299 }
 300
 301 /*
 302  * load microcode via ioctl:
 303  * code is user-space pointer
 304  */
 305 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
 306                                 struct snd_sb_csp_microcode __user * mcode)
 307 {
 308         struct snd_sb_csp_mc_header info;
 309
 310         unsigned char __user *data_ptr;
 311         unsigned char __user *data_end;
 312         unsigned short func_nr = 0;
 313
 314         struct riff_header file_h, item_h, code_h;
 315         __u32 item_type;
 316         struct desc_header funcdesc_h;
 317
 318         unsigned long flags;
 319         int err;
 320
 321         if (copy_from_user(&info, mcode, sizeof(info)))
 322                 return -EFAULT;
 323         data_ptr = mcode->data;
 324
 325         if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
 326                 return -EFAULT;
 327         if ((file_h.name != RIFF_HEADER) ||
 328             (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
 329                 snd_printd("%s: Invalid RIFF header\n", __func__);
 330                 return -EINVAL;
 331         }
 332         data_ptr += sizeof(file_h);
 333         data_end = data_ptr + le32_to_cpu(file_h.len);
 334
 335         if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
 336                 return -EFAULT;
 337         if (item_type != CSP__HEADER) {
 338                 snd_printd("%s: Invalid RIFF file type\n", __func__);
 339                 return -EINVAL;
 340         }
 341         data_ptr += sizeof (item_type);
 342
 343         for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) {
 344                 if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
 345                         return -EFAULT;
 346                 data_ptr += sizeof(item_h);
 347                 if (item_h.name != LIST_HEADER)
 348                         continue;
 349
 350                 if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
 351                          return -EFAULT;
 352                 switch (item_type) {
 353                 case FUNC_HEADER:
 354                         if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
 355                                 return -EFAULT;
 356                         func_nr = le16_to_cpu(funcdesc_h.func_nr);
 357                         break;
 358                 case CODE_HEADER:
 359                         if (func_nr != info.func_req)
 360                                 break;  /* not required function, try next */
 361                         data_ptr += sizeof(item_type);
 362
 363                         /* destroy QSound mixer element */
 364                         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
 365                                 snd_sb_qsound_destroy(p);
 366                         }
 367                         /* Clear all flags */
 368                         p->running = 0;
 369                         p->mode = 0;
 370
 371                         /* load microcode blocks */
 372                         for (;;) {
 373                                 if (data_ptr >= data_end)
 374                                         return -EINVAL;
 375                                 if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
 376                                         return -EFAULT;
 377
 378                                 /* init microcode blocks */
 379                                 if (code_h.name != INIT_HEADER)
 380                                         break;
 381                                 data_ptr += sizeof(code_h);
 382                                 err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len),
 383                                                       SNDRV_SB_CSP_LOAD_INITBLOCK);
 384                                 if (err)
 385                                         return err;
 386                                 data_ptr += le32_to_cpu(code_h.len);
 387                         }
 388                         /* main microcode block */
 389                         if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
 390                                 return -EFAULT;
 391
 392                         if (code_h.name != MAIN_HEADER) {
 393                                 snd_printd("%s: Missing 'main' microcode\n", __func__);
 394                                 return -EINVAL;
 395                         }
 396                         data_ptr += sizeof(code_h);
 397                         err = snd_sb_csp_load_user(p, data_ptr,
 398                                                    le32_to_cpu(code_h.len), 0);
 399                         if (err)
 400                                 return err;
 401
 402                         /* fill in codec header */
 403                         strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name));
 404                         p->func_nr = func_nr;
 405                         p->mode = le16_to_cpu(funcdesc_h.flags_play_rec);
 406                         switch (le16_to_cpu(funcdesc_h.VOC_type)) {
 407                         case 0x0001:    /* QSound decoder */
 408                                 if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 409                                         if (snd_sb_qsound_build(p) == 0)
 410                                                 /* set QSound flag and clear all other mode flags */
 411                                                 p->mode = SNDRV_SB_CSP_MODE_QSOUND;
 412                                 }
 413                                 p->acc_format = 0;
 414                                 break;
 415                         case 0x0006:    /* A Law codec */
 416                                 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 417                                 break;
 418                         case 0x0007:    /* Mu Law codec */
 419                                 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 420                                 break;
 421                         case 0x0011:    /* what Creative thinks is IMA ADPCM codec */
 422                         case 0x0200:    /* Creative ADPCM codec */
 423                                 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 424                                 break;
 425                         case    201:    /* Text 2 Speech decoder */
 426                                 /* TODO: Text2Speech handling routines */
 427                                 p->acc_format = 0;
 428                                 break;
 429                         case 0x0202:    /* Fast Speech 8 codec */
 430                         case 0x0203:    /* Fast Speech 10 codec */
 431                                 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL;
 432                                 break;
 433                         default:        /* other codecs are unsupported */
 434                                 p->acc_format = p->acc_width = p->acc_rates = 0;
 435                                 p->mode = 0;
 436                                 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
 437                                            __func__,
 438                                            le16_to_cpu(funcdesc_h.VOC_type));
 439                                 return -EINVAL;
 440                         }
 441                         p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono);
 442                         p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit);
 443                         p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates);
 444
 445                         /* Decouple CSP from IRQ and DMAREQ lines */
 446                         spin_lock_irqsave(&p->chip->reg_lock, flags);
 447                         set_mode_register(p->chip, 0xfc);
 448                         set_mode_register(p->chip, 0x00);
 449                         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 450
 451                         /* finished loading successfully */
 452                         p->running = SNDRV_SB_CSP_ST_LOADED;    /* set LOADED flag */
 453                         return 0;
 454                 }
 455         }
 456         snd_printd("%s: Function #%d not found\n", __func__, info.func_req);
 457         return -EINVAL;
 458 }
 459
 460 /*
 461  * unload CSP microcode
 462  */
 463 static int snd_sb_csp_unload(struct snd_sb_csp * p)
 464 {
 465         if (p->running & SNDRV_SB_CSP_ST_RUNNING)
 466                 return -EBUSY;
 467         if (!(p->running & SNDRV_SB_CSP_ST_LOADED))
 468                 return -ENXIO;
 469
 470         /* clear supported formats */
 471         p->acc_format = 0;
 472         p->acc_channels = p->acc_width = p->acc_rates = 0;
 473         /* destroy QSound mixer element */
 474         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
 475                 snd_sb_qsound_destroy(p);
 476         }
 477         /* clear all flags */
 478         p->running = 0;
 479         p->mode = 0;
 480         return 0;
 481 }
 482
 483 /*
 484  * send command sequence to DSP
 485  */
 486 static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size)
 487 {
 488         int i;
 489         for (i = 0; i < size; i++) {
 490                 if (!snd_sbdsp_command(chip, seq[i]))
 491                         return -EIO;
 492         }
 493         return 0;
 494 }
 495
 496 /*
 497  * set CSP codec parameter
 498  */
 499 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val)
 500 {
 501         unsigned char dsp_cmd[3];
 502
 503         dsp_cmd[0] = 0x05;      /* CSP set codec parameter */
 504         dsp_cmd[1] = val;       /* Parameter value */
 505         dsp_cmd[2] = par;       /* Parameter */
 506         command_seq(chip, dsp_cmd, 3);
 507         snd_sbdsp_command(chip, 0x03);  /* DSP read? */
 508         if (snd_sbdsp_get_byte(chip) != par)
 509                 return -EIO;
 510         return 0;
 511 }
 512
 513 /*
 514  * set CSP register
 515  */
 516 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val)
 517 {
 518         unsigned char dsp_cmd[3];
 519
 520         dsp_cmd[0] = 0x0e;      /* CSP set register */
 521         dsp_cmd[1] = reg;       /* CSP Register */
 522         dsp_cmd[2] = val;       /* value */
 523         return command_seq(chip, dsp_cmd, 3);
 524 }
 525
 526 /*
 527  * read CSP register
 528  * return < 0 -> error
 529  */
 530 static int read_register(struct snd_sb *chip, unsigned char reg)
 531 {
 532         unsigned char dsp_cmd[2];
 533
 534         dsp_cmd[0] = 0x0f;      /* CSP read register */
 535         dsp_cmd[1] = reg;       /* CSP Register */
 536         command_seq(chip, dsp_cmd, 2);
 537         return snd_sbdsp_get_byte(chip);        /* Read DSP value */
 538 }
 539
 540 /*
 541  * set CSP mode register
 542  */
 543 static int set_mode_register(struct snd_sb *chip, unsigned char mode)
 544 {
 545         unsigned char dsp_cmd[2];
 546
 547         dsp_cmd[0] = 0x04;      /* CSP set mode register */
 548         dsp_cmd[1] = mode;      /* mode */
 549         return command_seq(chip, dsp_cmd, 2);
 550 }
 551
 552 /*
 553  * Detect CSP
 554  * return 0 if CSP exists.
 555  */
 556 static int csp_detect(struct snd_sb *chip, int *version)
 557 {
 558         unsigned char csp_test1, csp_test2;
 559         unsigned long flags;
 560         int result = -ENODEV;
 561
 562         spin_lock_irqsave(&chip->reg_lock, flags);
 563
 564         set_codec_parameter(chip, 0x00, 0x00);
 565         set_mode_register(chip, 0xfc);          /* 0xfc = ?? */
 566
 567         csp_test1 = read_register(chip, 0x83);
 568         set_register(chip, 0x83, ~csp_test1);
 569         csp_test2 = read_register(chip, 0x83);
 570         if (csp_test2 != (csp_test1 ^ 0xff))
 571                 goto __fail;
 572
 573         set_register(chip, 0x83, csp_test1);
 574         csp_test2 = read_register(chip, 0x83);
 575         if (csp_test2 != csp_test1)
 576                 goto __fail;
 577
 578         set_mode_register(chip, 0x00);          /* 0x00 = ? */
 579
 580         *version = get_version(chip);
 581         snd_sbdsp_reset(chip);  /* reset DSP after getversion! */
 582         if (*version >= 0x10 && *version <= 0x1f)
 583                 result = 0;             /* valid version id */
 584
 585       __fail:
 586         spin_unlock_irqrestore(&chip->reg_lock, flags);
 587         return result;
 588 }
 589
 590 /*
 591  * get CSP version number
 592  */
 593 static int get_version(struct snd_sb *chip)
 594 {
 595         unsigned char dsp_cmd[2];
 596
 597         dsp_cmd[0] = 0x08;      /* SB_DSP_!something! */
 598         dsp_cmd[1] = 0x03;      /* get chip version id? */
 599         command_seq(chip, dsp_cmd, 2);
 600
 601         return (snd_sbdsp_get_byte(chip));
 602 }
 603
 604 /*
 605  * check if the CSP version is valid
 606  */
 607 static int snd_sb_csp_check_version(struct snd_sb_csp * p)
 608 {
 609         if (p->version < 0x10 || p->version > 0x1f) {
 610                 snd_printd("%s: Invalid CSP version: 0x%x\n", __func__, p->version);
 611                 return 1;
 612         }
 613         return 0;
 614 }
 615
 616 /*
 617  * download microcode to CSP (microcode should have one "main" block).
 618  */
 619 static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags)
 620 {
 621         int status, i;
 622         int err;
 623         int result = -EIO;
 624         unsigned long flags;
 625
 626         spin_lock_irqsave(&p->chip->reg_lock, flags);
 627         snd_sbdsp_command(p->chip, 0x01);       /* CSP download command */
 628         if (snd_sbdsp_get_byte(p->chip)) {
 629                 snd_printd("%s: Download command failed\n", __func__);
 630                 goto __fail;
 631         }
 632         /* Send CSP low byte (size - 1) */
 633         snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
 634         /* Send high byte */
 635         snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8));
 636         /* send microcode sequence */
 637         /* load from kernel space */
 638         while (size--) {
 639                 if (!snd_sbdsp_command(p->chip, *buf++))
 640                         goto __fail;
 641         }
 642         if (snd_sbdsp_get_byte(p->chip))
 643                 goto __fail;
 644
 645         if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
 646                 i = 0;
 647                 /* some codecs (FastSpeech) take some time to initialize */
 648                 while (1) {
 649                         snd_sbdsp_command(p->chip, 0x03);
 650                         status = snd_sbdsp_get_byte(p->chip);
 651                         if (status == 0x55 || ++i >= 10)
 652                                 break;
 653                         udelay (10);
 654                 }
 655                 if (status != 0x55) {
 656                         snd_printd("%s: Microcode initialization failed\n", __func__);
 657                         goto __fail;
 658                 }
 659         } else {
 660                 /*
 661                  * Read mixer register SB_DSP4_DMASETUP after loading 'main' code.
 662                  * Start CSP chip if no 16bit DMA channel is set - some kind
 663                  * of autorun or perhaps a bugfix?
 664                  */
 665                 spin_lock(&p->chip->mixer_lock);
 666                 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
 667                 spin_unlock(&p->chip->mixer_lock);
 668                 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
 669                         err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
 670                                set_codec_parameter(p->chip, 0xff, 0x00));
 671                         snd_sbdsp_reset(p->chip);               /* really! */
 672                         if (err)
 673                                 goto __fail;
 674                         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 675                         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 676                 }
 677         }
 678         result = 0;
 679
 680       __fail:
 681         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 682         return result;
 683 }
 684
 685 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
 686 {
 687         int err = -ENOMEM;
 688         unsigned char *kbuf = kmalloc(size, GFP_KERNEL);
 689         if (kbuf) {
 690                 if (copy_from_user(kbuf, buf, size))
 691                         err = -EFAULT;
 692                 else
 693                         err = snd_sb_csp_load(p, kbuf, size, load_flags);
 694                 kfree(kbuf);
 695         }
 696         return err;
 697 }
 698
 699 static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
 700 {
 701         static const char *const names[] = {
 702                 "sb16/mulaw_main.csp",
 703                 "sb16/alaw_main.csp",
 704                 "sb16/ima_adpcm_init.csp",
 705                 "sb16/ima_adpcm_playback.csp",
 706                 "sb16/ima_adpcm_capture.csp",
 707         };
 708         const struct firmware *program;
 709
 710         BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT);
 711         program = p->csp_programs[index];
 712         if (!program) {
 713                 int err = request_firmware(&program, names[index],
 714                                        p->chip->card->dev);
 715                 if (err < 0)
 716                         return err;
 717                 p->csp_programs[index] = program;
 718         }
 719         return snd_sb_csp_load(p, program->data, program->size, flags);
 720 }
 721
 722 /*
 723  * autoload hardware codec if necessary
 724  * return 0 if CSP is loaded and ready to run (p->running != 0)
 725  */
 726 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode)
 727 {
 728         unsigned long flags;
 729         int err = 0;
 730
 731         /* if CSP is running or manually loaded then exit */
 732         if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED))
 733                 return -EBUSY;
 734
 735         /* autoload microcode only if requested hardware codec is not already loaded */
 736         if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
 737                 p->running = SNDRV_SB_CSP_ST_AUTO;
 738         } else {
 739                 switch (pcm_sfmt) {
 740                 case SNDRV_PCM_FORMAT_MU_LAW:
 741                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0);
 742                         p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 743                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 744                         break;
 745                 case SNDRV_PCM_FORMAT_A_LAW:
 746                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0);
 747                         p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 748                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 749                         break;
 750                 case SNDRV_PCM_FORMAT_IMA_ADPCM:
 751                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT,
 752                                                        SNDRV_SB_CSP_LOAD_INITBLOCK);
 753                         if (err)
 754                                 break;
 755                         if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 756                                 err = snd_sb_csp_firmware_load
 757                                         (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0);
 758                                 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
 759                         } else {
 760                                 err = snd_sb_csp_firmware_load
 761                                         (p, CSP_PROGRAM_ADPCM_CAPTURE, 0);
 762                                 p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
 763                         }
 764                         p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 765                         break;
 766                 default:
 767                         /* Decouple CSP from IRQ and DMAREQ lines */
 768                         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
 769                                 spin_lock_irqsave(&p->chip->reg_lock, flags);
 770                                 set_mode_register(p->chip, 0xfc);
 771                                 set_mode_register(p->chip, 0x00);
 772                                 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 773                                 p->running = 0;                 /* clear autoloaded flag */
 774                         }
 775                         return -EINVAL;
 776                 }
 777                 if (err) {
 778                         p->acc_format = 0;
 779                         p->acc_channels = p->acc_width = p->acc_rates = 0;
 780
 781                         p->running = 0;                         /* clear autoloaded flag */
 782                         p->mode = 0;
 783                         return (err);
 784                 } else {
 785                         p->running = SNDRV_SB_CSP_ST_AUTO;      /* set autoloaded flag */
 786                         p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT;       /* only 16 bit data */
 787                         p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
 788                         p->acc_rates = SNDRV_SB_CSP_RATE_ALL;   /* HW codecs accept all rates */
 789                 }
 790
 791         }
 792         return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
 793 }
 794
 795 /*
 796  * start CSP
 797  */
 798 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels)
 799 {
 800         unsigned char s_type;   /* sample type */
 801         unsigned char mixL, mixR;
 802         int result = -EIO;
 803         unsigned long flags;
 804
 805         if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
 806                 snd_printd("%s: Microcode not loaded\n", __func__);
 807                 return -ENXIO;
 808         }
 809         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
 810                 snd_printd("%s: CSP already running\n", __func__);
 811                 return -EBUSY;
 812         }
 813         if (!(sample_width & p->acc_width)) {
 814                 snd_printd("%s: Unsupported PCM sample width\n", __func__);
 815                 return -EINVAL;
 816         }
 817         if (!(channels & p->acc_channels)) {
 818                 snd_printd("%s: Invalid number of channels\n", __func__);
 819                 return -EINVAL;
 820         }
 821
 822         /* Mute PCM volume */
 823         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 824         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 825         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 826         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 827         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 828
 829         spin_lock(&p->chip->reg_lock);
 830         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 831         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 832
 833         s_type = 0x00;
 834         if (channels == SNDRV_SB_CSP_MONO)
 835                 s_type = 0x11;  /* 000n 000n    (n = 1 if mono) */
 836         if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
 837                 s_type |= 0x22; /* 00dX 00dX    (d = 1 if 8 bit samples) */
 838
 839         if (set_codec_parameter(p->chip, 0x81, s_type)) {
 840                 snd_printd("%s: Set sample type command failed\n", __func__);
 841                 goto __fail;
 842         }
 843         if (set_codec_parameter(p->chip, 0x80, 0x00)) {
 844                 snd_printd("%s: Codec start command failed\n", __func__);
 845                 goto __fail;
 846         }
 847         p->run_width = sample_width;
 848         p->run_channels = channels;
 849
 850         p->running |= SNDRV_SB_CSP_ST_RUNNING;
 851
 852         if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
 853                 set_codec_parameter(p->chip, 0xe0, 0x01);
 854                 /* enable QSound decoder */
 855                 set_codec_parameter(p->chip, 0x00, 0xff);
 856                 set_codec_parameter(p->chip, 0x01, 0xff);
 857                 p->running |= SNDRV_SB_CSP_ST_QSOUND;
 858                 /* set QSound startup value */
 859                 snd_sb_csp_qsound_transfer(p);
 860         }
 861         result = 0;
 862
 863       __fail:
 864         spin_unlock(&p->chip->reg_lock);
 865
 866         /* restore PCM volume */
 867         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 868         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 869         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 870
 871         return result;
 872 }
 873
 874 /*
 875  * stop CSP
 876  */
 877 static int snd_sb_csp_stop(struct snd_sb_csp * p)
 878 {
 879         int result;
 880         unsigned char mixL, mixR;
 881         unsigned long flags;
 882
 883         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 884                 return 0;
 885
 886         /* Mute PCM volume */
 887         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 888         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 889         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 890         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 891         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 892
 893         spin_lock(&p->chip->reg_lock);
 894         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
 895                 set_codec_parameter(p->chip, 0xe0, 0x01);
 896                 /* disable QSound decoder */
 897                 set_codec_parameter(p->chip, 0x00, 0x00);
 898                 set_codec_parameter(p->chip, 0x01, 0x00);
 899
 900                 p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
 901         }
 902         result = set_mode_register(p->chip, 0xc0);      /* c0 = STOP */
 903         spin_unlock(&p->chip->reg_lock);
 904
 905         /* restore PCM volume */
 906         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 907         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 908         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 909
 910         if (!(result))
 911                 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
 912         return result;
 913 }
 914
 915 /*
 916  * pause CSP codec and hold DMA transfer
 917  */
 918 static int snd_sb_csp_pause(struct snd_sb_csp * p)
 919 {
 920         int result;
 921         unsigned long flags;
 922
 923         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 924                 return -EBUSY;
 925
 926         spin_lock_irqsave(&p->chip->reg_lock, flags);
 927         result = set_codec_parameter(p->chip, 0x80, 0xff);
 928         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 929         if (!(result))
 930                 p->running |= SNDRV_SB_CSP_ST_PAUSED;
 931
 932         return result;
 933 }
 934
 935 /*
 936  * restart CSP codec and resume DMA transfer
 937  */
 938 static int snd_sb_csp_restart(struct snd_sb_csp * p)
 939 {
 940         int result;
 941         unsigned long flags;
 942
 943         if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
 944                 return -EBUSY;
 945
 946         spin_lock_irqsave(&p->chip->reg_lock, flags);
 947         result = set_codec_parameter(p->chip, 0x80, 0x00);
 948         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 949         if (!(result))
 950                 p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
 951
 952         return result;
 953 }
 954
 955 /* ------------------------------ */
 956
 957 /*
 958  * QSound mixer control for PCM
 959  */
 960
 961 #define snd_sb_qsound_switch_info       snd_ctl_boolean_mono_info
 962
 963 static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 964 {
 965         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 966
 967         ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
 968         return 0;
 969 }
 970
 971 static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 972 {
 973         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 974         unsigned long flags;
 975         int change;
 976         unsigned char nval;
 977
 978         nval = ucontrol->value.integer.value[0] & 0x01;
 979         spin_lock_irqsave(&p->q_lock, flags);
 980         change = p->q_enabled != nval;
 981         p->q_enabled = nval;
 982         spin_unlock_irqrestore(&p->q_lock, flags);
 983         return change;
 984 }
 985
 986 static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 987 {
 988         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 989         uinfo->count = 2;
 990         uinfo->value.integer.min = 0;
 991         uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
 992         return 0;
 993 }
 994
 995 static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 996 {
 997         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 998         unsigned long flags;
 999
1000         spin_lock_irqsave(&p->q_lock, flags);
1001         ucontrol->value.integer.value[0] = p->qpos_left;
1002         ucontrol->value.integer.value[1] = p->qpos_right;
1003         spin_unlock_irqrestore(&p->q_lock, flags);
1004         return 0;
1005 }
1006
1007 static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1008 {
1009         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
1010         unsigned long flags;
1011         int change;
1012         unsigned char nval1, nval2;
1013
1014         nval1 = ucontrol->value.integer.value[0];
1015         if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1016                 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1017         nval2 = ucontrol->value.integer.value[1];
1018         if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1019                 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1020         spin_lock_irqsave(&p->q_lock, flags);
1021         change = p->qpos_left != nval1 || p->qpos_right != nval2;
1022         p->qpos_left = nval1;
1023         p->qpos_right = nval2;
1024         p->qpos_changed = change;
1025         spin_unlock_irqrestore(&p->q_lock, flags);
1026         return change;
1027 }
1028
1029 static struct snd_kcontrol_new snd_sb_qsound_switch = {
1030         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1031         .name = "3D Control - Switch",
1032         .info = snd_sb_qsound_switch_info,
1033         .get = snd_sb_qsound_switch_get,
1034         .put = snd_sb_qsound_switch_put
1035 };
1036
1037 static struct snd_kcontrol_new snd_sb_qsound_space = {
1038         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1039         .name = "3D Control - Space",
1040         .info = snd_sb_qsound_space_info,
1041         .get = snd_sb_qsound_space_get,
1042         .put = snd_sb_qsound_space_put
1043 };
1044
1045 static int snd_sb_qsound_build(struct snd_sb_csp * p)
1046 {
1047         struct snd_card *card;
1048         int err;
1049
1050         if (snd_BUG_ON(!p))
1051                 return -EINVAL;
1052
1053         card = p->chip->card;
1054         p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
1055         p->qpos_changed = 0;
1056
1057         spin_lock_init(&p->q_lock);
1058
1059         if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
1060                 goto __error;
1061         if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
1062                 goto __error;
1063
1064         return 0;
1065
1066      __error:
1067         snd_sb_qsound_destroy(p);
1068         return err;
1069 }
1070
1071 static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
1072 {
1073         struct snd_card *card;
1074         unsigned long flags;
1075
1076         if (snd_BUG_ON(!p))
1077                 return;
1078
1079         card = p->chip->card;
1080
1081         down_write(&card->controls_rwsem);
1082         if (p->qsound_switch)
1083                 snd_ctl_remove(card, p->qsound_switch);
1084         if (p->qsound_space)
1085                 snd_ctl_remove(card, p->qsound_space);
1086         up_write(&card->controls_rwsem);
1087
1088         /* cancel pending transfer of QSound parameters */
1089         spin_lock_irqsave (&p->q_lock, flags);
1090         p->qpos_changed = 0;
1091         spin_unlock_irqrestore (&p->q_lock, flags);
1092 }
1093
1094 /*
1095  * Transfer qsound parameters to CSP,
1096  * function should be called from interrupt routine
1097  */
1098 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
1099 {
1100         int err = -ENXIO;
1101
1102         spin_lock(&p->q_lock);
1103         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1104                 set_codec_parameter(p->chip, 0xe0, 0x01);
1105                 /* left channel */
1106                 set_codec_parameter(p->chip, 0x00, p->qpos_left);
1107                 set_codec_parameter(p->chip, 0x02, 0x00);
1108                 /* right channel */
1109                 set_codec_parameter(p->chip, 0x00, p->qpos_right);
1110                 set_codec_parameter(p->chip, 0x03, 0x00);
1111                 err = 0;
1112         }
1113         p->qpos_changed = 0;
1114         spin_unlock(&p->q_lock);
1115         return err;
1116 }
1117
1118 /* ------------------------------ */
1119
1120 /*
1121  * proc interface
1122  */
1123 static int init_proc_entry(struct snd_sb_csp * p, int device)
1124 {
1125         char name[16];
1126         struct snd_info_entry *entry;
1127         sprintf(name, "cspD%d", device);
1128         if (! snd_card_proc_new(p->chip->card, name, &entry))
1129                 snd_info_set_text_ops(entry, p, info_read);
1130         return 0;
1131 }
1132
1133 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1134 {
1135         struct snd_sb_csp *p = entry->private_data;
1136
1137         snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
1138         snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
1139                     ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
1140                     ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
1141                     ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
1142         if (p->running & SNDRV_SB_CSP_ST_LOADED) {
1143                 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
1144                 snd_iprintf(buffer, "Sample rates: ");
1145                 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
1146                         snd_iprintf(buffer, "All\n");
1147                 } else {
1148                         snd_iprintf(buffer, "%s%s%s%s\n",
1149                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
1150                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
1151                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
1152                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
1153                 }
1154                 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
1155                         snd_iprintf(buffer, "QSound decoder %sabled\n",
1156                                     p->q_enabled ? "en" : "dis");
1157                 } else {
1158                         snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1159                                     p->acc_format,
1160                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
1161                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
1162                                     ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
1163                                     ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
1164                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
1165                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
1166                 }
1167         }
1168         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
1169                 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1170         }
1171         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
1172                 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
1173                             ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
1174                             ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
1175         }
1176         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1177                 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
1178                             p->qpos_left, p->qpos_right);
1179         }
1180 }
1181
1182 /* */
1183
1184 EXPORT_SYMBOL(snd_sb_csp_new);
1185
1186 /*
1187  * INIT part
1188  */
1189
1190 static int __init alsa_sb_csp_init(void)
1191 {
1192         return 0;
1193 }
1194
1195 static void __exit alsa_sb_csp_exit(void)
1196 {
1197 }
1198
1199 module_init(alsa_sb_csp_init)
1200 module_exit(alsa_sb_csp_exit)