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