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