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;
 688         unsigned char *kbuf;
 689
 690         kbuf = memdup_user(buf, size);
 691         if (IS_ERR(kbuf))
 692                 return PTR_ERR(kbuf);
 693
 694         err = snd_sb_csp_load(p, kbuf, size, load_flags);
 695
 696         kfree(kbuf);
 697         return err;
 698 }
 699
 700 static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
 701 {
 702         static const char *const names[] = {
 703                 "sb16/mulaw_main.csp",
 704                 "sb16/alaw_main.csp",
 705                 "sb16/ima_adpcm_init.csp",
 706                 "sb16/ima_adpcm_playback.csp",
 707                 "sb16/ima_adpcm_capture.csp",
 708         };
 709         const struct firmware *program;
 710
 711         BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT);
 712         program = p->csp_programs[index];
 713         if (!program) {
 714                 int err = request_firmware(&program, names[index],
 715                                        p->chip->card->dev);
 716                 if (err < 0)
 717                         return err;
 718                 p->csp_programs[index] = program;
 719         }
 720         return snd_sb_csp_load(p, program->data, program->size, flags);
 721 }
 722
 723 /*
 724  * autoload hardware codec if necessary
 725  * return 0 if CSP is loaded and ready to run (p->running != 0)
 726  */
 727 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode)
 728 {
 729         unsigned long flags;
 730         int err = 0;
 731
 732         /* if CSP is running or manually loaded then exit */
 733         if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED))
 734                 return -EBUSY;
 735
 736         /* autoload microcode only if requested hardware codec is not already loaded */
 737         if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
 738                 p->running = SNDRV_SB_CSP_ST_AUTO;
 739         } else {
 740                 switch (pcm_sfmt) {
 741                 case SNDRV_PCM_FORMAT_MU_LAW:
 742                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0);
 743                         p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 744                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 745                         break;
 746                 case SNDRV_PCM_FORMAT_A_LAW:
 747                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0);
 748                         p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 749                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 750                         break;
 751                 case SNDRV_PCM_FORMAT_IMA_ADPCM:
 752                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT,
 753                                                        SNDRV_SB_CSP_LOAD_INITBLOCK);
 754                         if (err)
 755                                 break;
 756                         if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 757                                 err = snd_sb_csp_firmware_load
 758                                         (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0);
 759                                 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
 760                         } else {
 761                                 err = snd_sb_csp_firmware_load
 762                                         (p, CSP_PROGRAM_ADPCM_CAPTURE, 0);
 763                                 p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
 764                         }
 765                         p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 766                         break;
 767                 default:
 768                         /* Decouple CSP from IRQ and DMAREQ lines */
 769                         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
 770                                 spin_lock_irqsave(&p->chip->reg_lock, flags);
 771                                 set_mode_register(p->chip, 0xfc);
 772                                 set_mode_register(p->chip, 0x00);
 773                                 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 774                                 p->running = 0;                 /* clear autoloaded flag */
 775                         }
 776                         return -EINVAL;
 777                 }
 778                 if (err) {
 779                         p->acc_format = 0;
 780                         p->acc_channels = p->acc_width = p->acc_rates = 0;
 781
 782                         p->running = 0;                         /* clear autoloaded flag */
 783                         p->mode = 0;
 784                         return (err);
 785                 } else {
 786                         p->running = SNDRV_SB_CSP_ST_AUTO;      /* set autoloaded flag */
 787                         p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT;       /* only 16 bit data */
 788                         p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
 789                         p->acc_rates = SNDRV_SB_CSP_RATE_ALL;   /* HW codecs accept all rates */
 790                 }
 791
 792         }
 793         return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
 794 }
 795
 796 /*
 797  * start CSP
 798  */
 799 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels)
 800 {
 801         unsigned char s_type;   /* sample type */
 802         unsigned char mixL, mixR;
 803         int result = -EIO;
 804         unsigned long flags;
 805
 806         if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
 807                 snd_printd("%s: Microcode not loaded\n", __func__);
 808                 return -ENXIO;
 809         }
 810         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
 811                 snd_printd("%s: CSP already running\n", __func__);
 812                 return -EBUSY;
 813         }
 814         if (!(sample_width & p->acc_width)) {
 815                 snd_printd("%s: Unsupported PCM sample width\n", __func__);
 816                 return -EINVAL;
 817         }
 818         if (!(channels & p->acc_channels)) {
 819                 snd_printd("%s: Invalid number of channels\n", __func__);
 820                 return -EINVAL;
 821         }
 822
 823         /* Mute PCM volume */
 824         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 825         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 826         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 827         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 828         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 829
 830         spin_lock(&p->chip->reg_lock);
 831         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 832         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 833
 834         s_type = 0x00;
 835         if (channels == SNDRV_SB_CSP_MONO)
 836                 s_type = 0x11;  /* 000n 000n    (n = 1 if mono) */
 837         if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
 838                 s_type |= 0x22; /* 00dX 00dX    (d = 1 if 8 bit samples) */
 839
 840         if (set_codec_parameter(p->chip, 0x81, s_type)) {
 841                 snd_printd("%s: Set sample type command failed\n", __func__);
 842                 goto __fail;
 843         }
 844         if (set_codec_parameter(p->chip, 0x80, 0x00)) {
 845                 snd_printd("%s: Codec start command failed\n", __func__);
 846                 goto __fail;
 847         }
 848         p->run_width = sample_width;
 849         p->run_channels = channels;
 850
 851         p->running |= SNDRV_SB_CSP_ST_RUNNING;
 852
 853         if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
 854                 set_codec_parameter(p->chip, 0xe0, 0x01);
 855                 /* enable QSound decoder */
 856                 set_codec_parameter(p->chip, 0x00, 0xff);
 857                 set_codec_parameter(p->chip, 0x01, 0xff);
 858                 p->running |= SNDRV_SB_CSP_ST_QSOUND;
 859                 /* set QSound startup value */
 860                 snd_sb_csp_qsound_transfer(p);
 861         }
 862         result = 0;
 863
 864       __fail:
 865         spin_unlock(&p->chip->reg_lock);
 866
 867         /* restore PCM volume */
 868         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 869         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 870         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 871
 872         return result;
 873 }
 874
 875 /*
 876  * stop CSP
 877  */
 878 static int snd_sb_csp_stop(struct snd_sb_csp * p)
 879 {
 880         int result;
 881         unsigned char mixL, mixR;
 882         unsigned long flags;
 883
 884         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 885                 return 0;
 886
 887         /* Mute PCM volume */
 888         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 889         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 890         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 891         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 892         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 893
 894         spin_lock(&p->chip->reg_lock);
 895         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
 896                 set_codec_parameter(p->chip, 0xe0, 0x01);
 897                 /* disable QSound decoder */
 898                 set_codec_parameter(p->chip, 0x00, 0x00);
 899                 set_codec_parameter(p->chip, 0x01, 0x00);
 900
 901                 p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
 902         }
 903         result = set_mode_register(p->chip, 0xc0);      /* c0 = STOP */
 904         spin_unlock(&p->chip->reg_lock);
 905
 906         /* restore PCM volume */
 907         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 908         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 909         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 910
 911         if (!(result))
 912                 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
 913         return result;
 914 }
 915
 916 /*
 917  * pause CSP codec and hold DMA transfer
 918  */
 919 static int snd_sb_csp_pause(struct snd_sb_csp * p)
 920 {
 921         int result;
 922         unsigned long flags;
 923
 924         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 925                 return -EBUSY;
 926
 927         spin_lock_irqsave(&p->chip->reg_lock, flags);
 928         result = set_codec_parameter(p->chip, 0x80, 0xff);
 929         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 930         if (!(result))
 931                 p->running |= SNDRV_SB_CSP_ST_PAUSED;
 932
 933         return result;
 934 }
 935
 936 /*
 937  * restart CSP codec and resume DMA transfer
 938  */
 939 static int snd_sb_csp_restart(struct snd_sb_csp * p)
 940 {
 941         int result;
 942         unsigned long flags;
 943
 944         if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
 945                 return -EBUSY;
 946
 947         spin_lock_irqsave(&p->chip->reg_lock, flags);
 948         result = set_codec_parameter(p->chip, 0x80, 0x00);
 949         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 950         if (!(result))
 951                 p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
 952
 953         return result;
 954 }
 955
 956 /* ------------------------------ */
 957
 958 /*
 959  * QSound mixer control for PCM
 960  */
 961
 962 #define snd_sb_qsound_switch_info       snd_ctl_boolean_mono_info
 963
 964 static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 965 {
 966         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 967
 968         ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
 969         return 0;
 970 }
 971
 972 static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 973 {
 974         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 975         unsigned long flags;
 976         int change;
 977         unsigned char nval;
 978
 979         nval = ucontrol->value.integer.value[0] & 0x01;
 980         spin_lock_irqsave(&p->q_lock, flags);
 981         change = p->q_enabled != nval;
 982         p->q_enabled = nval;
 983         spin_unlock_irqrestore(&p->q_lock, flags);
 984         return change;
 985 }
 986
 987 static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 988 {
 989         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 990         uinfo->count = 2;
 991         uinfo->value.integer.min = 0;
 992         uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
 993         return 0;
 994 }
 995
 996 static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 997 {
 998         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 999         unsigned long flags;
1000
1001         spin_lock_irqsave(&p->q_lock, flags);
1002         ucontrol->value.integer.value[0] = p->qpos_left;
1003         ucontrol->value.integer.value[1] = p->qpos_right;
1004         spin_unlock_irqrestore(&p->q_lock, flags);
1005         return 0;
1006 }
1007
1008 static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1009 {
1010         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
1011         unsigned long flags;
1012         int change;
1013         unsigned char nval1, nval2;
1014
1015         nval1 = ucontrol->value.integer.value[0];
1016         if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1017                 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1018         nval2 = ucontrol->value.integer.value[1];
1019         if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1020                 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1021         spin_lock_irqsave(&p->q_lock, flags);
1022         change = p->qpos_left != nval1 || p->qpos_right != nval2;
1023         p->qpos_left = nval1;
1024         p->qpos_right = nval2;
1025         p->qpos_changed = change;
1026         spin_unlock_irqrestore(&p->q_lock, flags);
1027         return change;
1028 }
1029
1030 static struct snd_kcontrol_new snd_sb_qsound_switch = {
1031         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1032         .name = "3D Control - Switch",
1033         .info = snd_sb_qsound_switch_info,
1034         .get = snd_sb_qsound_switch_get,
1035         .put = snd_sb_qsound_switch_put
1036 };
1037
1038 static struct snd_kcontrol_new snd_sb_qsound_space = {
1039         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1040         .name = "3D Control - Space",
1041         .info = snd_sb_qsound_space_info,
1042         .get = snd_sb_qsound_space_get,
1043         .put = snd_sb_qsound_space_put
1044 };
1045
1046 static int snd_sb_qsound_build(struct snd_sb_csp * p)
1047 {
1048         struct snd_card *card;
1049         int err;
1050
1051         if (snd_BUG_ON(!p))
1052                 return -EINVAL;
1053
1054         card = p->chip->card;
1055         p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
1056         p->qpos_changed = 0;
1057
1058         spin_lock_init(&p->q_lock);
1059
1060         if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
1061                 goto __error;
1062         if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
1063                 goto __error;
1064
1065         return 0;
1066
1067      __error:
1068         snd_sb_qsound_destroy(p);
1069         return err;
1070 }
1071
1072 static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
1073 {
1074         struct snd_card *card;
1075         unsigned long flags;
1076
1077         if (snd_BUG_ON(!p))
1078                 return;
1079
1080         card = p->chip->card;
1081
1082         down_write(&card->controls_rwsem);
1083         if (p->qsound_switch)
1084                 snd_ctl_remove(card, p->qsound_switch);
1085         if (p->qsound_space)
1086                 snd_ctl_remove(card, p->qsound_space);
1087         up_write(&card->controls_rwsem);
1088
1089         /* cancel pending transfer of QSound parameters */
1090         spin_lock_irqsave (&p->q_lock, flags);
1091         p->qpos_changed = 0;
1092         spin_unlock_irqrestore (&p->q_lock, flags);
1093 }
1094
1095 /*
1096  * Transfer qsound parameters to CSP,
1097  * function should be called from interrupt routine
1098  */
1099 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
1100 {
1101         int err = -ENXIO;
1102
1103         spin_lock(&p->q_lock);
1104         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1105                 set_codec_parameter(p->chip, 0xe0, 0x01);
1106                 /* left channel */
1107                 set_codec_parameter(p->chip, 0x00, p->qpos_left);
1108                 set_codec_parameter(p->chip, 0x02, 0x00);
1109                 /* right channel */
1110                 set_codec_parameter(p->chip, 0x00, p->qpos_right);
1111                 set_codec_parameter(p->chip, 0x03, 0x00);
1112                 err = 0;
1113         }
1114         p->qpos_changed = 0;
1115         spin_unlock(&p->q_lock);
1116         return err;
1117 }
1118
1119 /* ------------------------------ */
1120
1121 /*
1122  * proc interface
1123  */
1124 static int init_proc_entry(struct snd_sb_csp * p, int device)
1125 {
1126         char name[16];
1127         struct snd_info_entry *entry;
1128         sprintf(name, "cspD%d", device);
1129         if (! snd_card_proc_new(p->chip->card, name, &entry))
1130                 snd_info_set_text_ops(entry, p, info_read);
1131         return 0;
1132 }
1133
1134 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1135 {
1136         struct snd_sb_csp *p = entry->private_data;
1137
1138         snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
1139         snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
1140                     ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
1141                     ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
1142                     ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
1143         if (p->running & SNDRV_SB_CSP_ST_LOADED) {
1144                 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
1145                 snd_iprintf(buffer, "Sample rates: ");
1146                 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
1147                         snd_iprintf(buffer, "All\n");
1148                 } else {
1149                         snd_iprintf(buffer, "%s%s%s%s\n",
1150                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
1151                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
1152                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
1153                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
1154                 }
1155                 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
1156                         snd_iprintf(buffer, "QSound decoder %sabled\n",
1157                                     p->q_enabled ? "en" : "dis");
1158                 } else {
1159                         snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1160                                     p->acc_format,
1161                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
1162                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
1163                                     ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
1164                                     ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
1165                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
1166                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
1167                 }
1168         }
1169         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
1170                 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1171         }
1172         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
1173                 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
1174                             ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
1175                             ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
1176         }
1177         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1178                 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
1179                             p->qpos_left, p->qpos_right);
1180         }
1181 }
1182
1183 /* */
1184
1185 EXPORT_SYMBOL(snd_sb_csp_new);
1186
1187 /*
1188  * INIT part
1189  */
1190
1191 static int __init alsa_sb_csp_init(void)
1192 {
1193         return 0;
1194 }
1195
1196 static void __exit alsa_sb_csp_exit(void)
1197 {
1198 }
1199
1200 module_init(alsa_sb_csp_init)
1201 module_exit(alsa_sb_csp_exit)