kernel/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 MODULE_FIRMWARE("sb16/mulaw_main.csp");
  40 MODULE_FIRMWARE("sb16/alaw_main.csp");
  41 MODULE_FIRMWARE("sb16/ima_adpcm_init.csp");
  42 MODULE_FIRMWARE("sb16/ima_adpcm_playback.csp");
  43 MODULE_FIRMWARE("sb16/ima_adpcm_capture.csp");
  44
  45 #ifdef SNDRV_LITTLE_ENDIAN
  46 #define CSP_HDR_VALUE(a,b,c,d)  ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
  47 #else
  48 #define CSP_HDR_VALUE(a,b,c,d)  ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
  49 #endif
  50
  51 #define RIFF_HEADER     CSP_HDR_VALUE('R', 'I', 'F', 'F')
  52 #define CSP__HEADER     CSP_HDR_VALUE('C', 'S', 'P', ' ')
  53 #define LIST_HEADER     CSP_HDR_VALUE('L', 'I', 'S', 'T')
  54 #define FUNC_HEADER     CSP_HDR_VALUE('f', 'u', 'n', 'c')
  55 #define CODE_HEADER     CSP_HDR_VALUE('c', 'o', 'd', 'e')
  56 #define INIT_HEADER     CSP_HDR_VALUE('i', 'n', 'i', 't')
  57 #define MAIN_HEADER     CSP_HDR_VALUE('m', 'a', 'i', 'n')
  58
  59 /*
  60  * RIFF data format
  61  */
  62 struct riff_header {
  63         __u32 name;
  64         __u32 len;
  65 };
  66
  67 struct desc_header {
  68         struct riff_header info;
  69         __u16 func_nr;
  70         __u16 VOC_type;
  71         __u16 flags_play_rec;
  72         __u16 flags_16bit_8bit;
  73         __u16 flags_stereo_mono;
  74         __u16 flags_rates;
  75 };
  76
  77 /*
  78  * prototypes
  79  */
  80 static void snd_sb_csp_free(struct snd_hwdep *hw);
  81 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file);
  82 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg);
  83 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file);
  84
  85 static int csp_detect(struct snd_sb *chip, int *version);
  86 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val);
  87 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val);
  88 static int read_register(struct snd_sb *chip, unsigned char reg);
  89 static int set_mode_register(struct snd_sb *chip, unsigned char mode);
  90 static int get_version(struct snd_sb *chip);
  91
  92 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
  93                                 struct snd_sb_csp_microcode __user * code);
  94 static int snd_sb_csp_unload(struct snd_sb_csp * p);
  95 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags);
  96 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode);
  97 static int snd_sb_csp_check_version(struct snd_sb_csp * p);
  98
  99 static int snd_sb_csp_use(struct snd_sb_csp * p);
 100 static int snd_sb_csp_unuse(struct snd_sb_csp * p);
 101 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels);
 102 static int snd_sb_csp_stop(struct snd_sb_csp * p);
 103 static int snd_sb_csp_pause(struct snd_sb_csp * p);
 104 static int snd_sb_csp_restart(struct snd_sb_csp * p);
 105
 106 static int snd_sb_qsound_build(struct snd_sb_csp * p);
 107 static void snd_sb_qsound_destroy(struct snd_sb_csp * p);
 108 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p);
 109
 110 static int init_proc_entry(struct snd_sb_csp * p, int device);
 111 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer);
 112
 113 /*
 114  * Detect CSP chip and create a new instance
 115  */
 116 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep)
 117 {
 118         struct snd_sb_csp *p;
 119         int uninitialized_var(version);
 120         int err;
 121         struct snd_hwdep *hw;
 122
 123         if (rhwdep)
 124                 *rhwdep = NULL;
 125
 126         if (csp_detect(chip, &version))
 127                 return -ENODEV;
 128
 129         if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0)
 130                 return err;
 131
 132         if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) {
 133                 snd_device_free(chip->card, hw);
 134                 return -ENOMEM;
 135         }
 136         p->chip = chip;
 137         p->version = version;
 138
 139         /* CSP operators */
 140         p->ops.csp_use = snd_sb_csp_use;
 141         p->ops.csp_unuse = snd_sb_csp_unuse;
 142         p->ops.csp_autoload = snd_sb_csp_autoload;
 143         p->ops.csp_start = snd_sb_csp_start;
 144         p->ops.csp_stop = snd_sb_csp_stop;
 145         p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer;
 146
 147         mutex_init(&p->access_mutex);
 148         sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f));
 149         hw->iface = SNDRV_HWDEP_IFACE_SB16CSP;
 150         hw->private_data = p;
 151         hw->private_free = snd_sb_csp_free;
 152
 153         /* operators - only write/ioctl */
 154         hw->ops.open = snd_sb_csp_open;
 155         hw->ops.ioctl = snd_sb_csp_ioctl;
 156         hw->ops.release = snd_sb_csp_release;
 157
 158         /* create a proc entry */
 159         init_proc_entry(p, device);
 160         if (rhwdep)
 161                 *rhwdep = hw;
 162         return 0;
 163 }
 164
 165 /*
 166  * free_private for hwdep instance
 167  */
 168 static void snd_sb_csp_free(struct snd_hwdep *hwdep)
 169 {
 170         int i;
 171         struct snd_sb_csp *p = hwdep->private_data;
 172         if (p) {
 173                 if (p->running & SNDRV_SB_CSP_ST_RUNNING)
 174                         snd_sb_csp_stop(p);
 175                 for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i)
 176                         release_firmware(p->csp_programs[i]);
 177                 kfree(p);
 178         }
 179 }
 180
 181 /* ------------------------------ */
 182
 183 /*
 184  * open the device exclusively
 185  */
 186 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file)
 187 {
 188         struct snd_sb_csp *p = hw->private_data;
 189         return (snd_sb_csp_use(p));
 190 }
 191
 192 /*
 193  * ioctl for hwdep device:
 194  */
 195 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg)
 196 {
 197         struct snd_sb_csp *p = hw->private_data;
 198         struct snd_sb_csp_info info;
 199         struct snd_sb_csp_start start_info;
 200         int err;
 201
 202         if (snd_BUG_ON(!p))
 203                 return -EINVAL;
 204
 205         if (snd_sb_csp_check_version(p))
 206                 return -ENODEV;
 207
 208         switch (cmd) {
 209                 /* get information */
 210         case SNDRV_SB_CSP_IOCTL_INFO:
 211                 memset(&info, 0, sizeof(info));
 212                 *info.codec_name = *p->codec_name;
 213                 info.func_nr = p->func_nr;
 214                 info.acc_format = p->acc_format;
 215                 info.acc_channels = p->acc_channels;
 216                 info.acc_width = p->acc_width;
 217                 info.acc_rates = p->acc_rates;
 218                 info.csp_mode = p->mode;
 219                 info.run_channels = p->run_channels;
 220                 info.run_width = p->run_width;
 221                 info.version = p->version;
 222                 info.state = p->running;
 223                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
 224                         err = -EFAULT;
 225                 else
 226                         err = 0;
 227                 break;
 228
 229                 /* load CSP microcode */
 230         case SNDRV_SB_CSP_IOCTL_LOAD_CODE:
 231                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
 232                        -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg));
 233                 break;
 234         case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE:
 235                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
 236                        -EBUSY : snd_sb_csp_unload(p));
 237                 break;
 238
 239                 /* change CSP running state */
 240         case SNDRV_SB_CSP_IOCTL_START:
 241                 if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info)))
 242                         err = -EFAULT;
 243                 else
 244                         err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels);
 245                 break;
 246         case SNDRV_SB_CSP_IOCTL_STOP:
 247                 err = snd_sb_csp_stop(p);
 248                 break;
 249         case SNDRV_SB_CSP_IOCTL_PAUSE:
 250                 err = snd_sb_csp_pause(p);
 251                 break;
 252         case SNDRV_SB_CSP_IOCTL_RESTART:
 253                 err = snd_sb_csp_restart(p);
 254                 break;
 255         default:
 256                 err = -ENOTTY;
 257                 break;
 258         }
 259
 260         return err;
 261 }
 262
 263 /*
 264  * close the device
 265  */
 266 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file)
 267 {
 268         struct snd_sb_csp *p = hw->private_data;
 269         return (snd_sb_csp_unuse(p));
 270 }
 271
 272 /* ------------------------------ */
 273
 274 /*
 275  * acquire device
 276  */
 277 static int snd_sb_csp_use(struct snd_sb_csp * p)
 278 {
 279         mutex_lock(&p->access_mutex);
 280         if (p->used) {
 281                 mutex_unlock(&p->access_mutex);
 282                 return -EAGAIN;
 283         }
 284         p->used++;
 285         mutex_unlock(&p->access_mutex);
 286
 287         return 0;
 288
 289 }
 290
 291 /*
 292  * release device
 293  */
 294 static int snd_sb_csp_unuse(struct snd_sb_csp * p)
 295 {
 296         mutex_lock(&p->access_mutex);
 297         p->used--;
 298         mutex_unlock(&p->access_mutex);
 299
 300         return 0;
 301 }
 302
 303 /*
 304  * load microcode via ioctl:
 305  * code is user-space pointer
 306  */
 307 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
 308                                 struct snd_sb_csp_microcode __user * mcode)
 309 {
 310         struct snd_sb_csp_mc_header info;
 311
 312         unsigned char __user *data_ptr;
 313         unsigned char __user *data_end;
 314         unsigned short func_nr = 0;
 315
 316         struct riff_header file_h, item_h, code_h;
 317         __u32 item_type;
 318         struct desc_header funcdesc_h;
 319
 320         unsigned long flags;
 321         int err;
 322
 323         if (copy_from_user(&info, mcode, sizeof(info)))
 324                 return -EFAULT;
 325         data_ptr = mcode->data;
 326
 327         if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
 328                 return -EFAULT;
 329         if ((file_h.name != RIFF_HEADER) ||
 330             (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
 331                 snd_printd("%s: Invalid RIFF header\n", __func__);
 332                 return -EINVAL;
 333         }
 334         data_ptr += sizeof(file_h);
 335         data_end = data_ptr + le32_to_cpu(file_h.len);
 336
 337         if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
 338                 return -EFAULT;
 339         if (item_type != CSP__HEADER) {
 340                 snd_printd("%s: Invalid RIFF file type\n", __func__);
 341                 return -EINVAL;
 342         }
 343         data_ptr += sizeof (item_type);
 344
 345         for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) {
 346                 if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
 347                         return -EFAULT;
 348                 data_ptr += sizeof(item_h);
 349                 if (item_h.name != LIST_HEADER)
 350                         continue;
 351
 352                 if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
 353                          return -EFAULT;
 354                 switch (item_type) {
 355                 case FUNC_HEADER:
 356                         if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
 357                                 return -EFAULT;
 358                         func_nr = le16_to_cpu(funcdesc_h.func_nr);
 359                         break;
 360                 case CODE_HEADER:
 361                         if (func_nr != info.func_req)
 362                                 break;  /* not required function, try next */
 363                         data_ptr += sizeof(item_type);
 364
 365                         /* destroy QSound mixer element */
 366                         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
 367                                 snd_sb_qsound_destroy(p);
 368                         }
 369                         /* Clear all flags */
 370                         p->running = 0;
 371                         p->mode = 0;
 372
 373                         /* load microcode blocks */
 374                         for (;;) {
 375                                 if (data_ptr >= data_end)
 376                                         return -EINVAL;
 377                                 if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
 378                                         return -EFAULT;
 379
 380                                 /* init microcode blocks */
 381                                 if (code_h.name != INIT_HEADER)
 382                                         break;
 383                                 data_ptr += sizeof(code_h);
 384                                 err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len),
 385                                                       SNDRV_SB_CSP_LOAD_INITBLOCK);
 386                                 if (err)
 387                                         return err;
 388                                 data_ptr += le32_to_cpu(code_h.len);
 389                         }
 390                         /* main microcode block */
 391                         if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
 392                                 return -EFAULT;
 393
 394                         if (code_h.name != MAIN_HEADER) {
 395                                 snd_printd("%s: Missing 'main' microcode\n", __func__);
 396                                 return -EINVAL;
 397                         }
 398                         data_ptr += sizeof(code_h);
 399                         err = snd_sb_csp_load_user(p, data_ptr,
 400                                                    le32_to_cpu(code_h.len), 0);
 401                         if (err)
 402                                 return err;
 403
 404                         /* fill in codec header */
 405                         strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name));
 406                         p->func_nr = func_nr;
 407                         p->mode = le16_to_cpu(funcdesc_h.flags_play_rec);
 408                         switch (le16_to_cpu(funcdesc_h.VOC_type)) {
 409                         case 0x0001:    /* QSound decoder */
 410                                 if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 411                                         if (snd_sb_qsound_build(p) == 0)
 412                                                 /* set QSound flag and clear all other mode flags */
 413                                                 p->mode = SNDRV_SB_CSP_MODE_QSOUND;
 414                                 }
 415                                 p->acc_format = 0;
 416                                 break;
 417                         case 0x0006:    /* A Law codec */
 418                                 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 419                                 break;
 420                         case 0x0007:    /* Mu Law codec */
 421                                 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 422                                 break;
 423                         case 0x0011:    /* what Creative thinks is IMA ADPCM codec */
 424                         case 0x0200:    /* Creative ADPCM codec */
 425                                 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 426                                 break;
 427                         case    201:    /* Text 2 Speech decoder */
 428                                 /* TODO: Text2Speech handling routines */
 429                                 p->acc_format = 0;
 430                                 break;
 431                         case 0x0202:    /* Fast Speech 8 codec */
 432                         case 0x0203:    /* Fast Speech 10 codec */
 433                                 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL;
 434                                 break;
 435                         default:        /* other codecs are unsupported */
 436                                 p->acc_format = p->acc_width = p->acc_rates = 0;
 437                                 p->mode = 0;
 438                                 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
 439                                            __func__,
 440                                            le16_to_cpu(funcdesc_h.VOC_type));
 441                                 return -EINVAL;
 442                         }
 443                         p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono);
 444                         p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit);
 445                         p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates);
 446
 447                         /* Decouple CSP from IRQ and DMAREQ lines */
 448                         spin_lock_irqsave(&p->chip->reg_lock, flags);
 449                         set_mode_register(p->chip, 0xfc);
 450                         set_mode_register(p->chip, 0x00);
 451                         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 452
 453                         /* finished loading successfully */
 454                         p->running = SNDRV_SB_CSP_ST_LOADED;    /* set LOADED flag */
 455                         return 0;
 456                 }
 457         }
 458         snd_printd("%s: Function #%d not found\n", __func__, info.func_req);
 459         return -EINVAL;
 460 }
 461
 462 /*
 463  * unload CSP microcode
 464  */
 465 static int snd_sb_csp_unload(struct snd_sb_csp * p)
 466 {
 467         if (p->running & SNDRV_SB_CSP_ST_RUNNING)
 468                 return -EBUSY;
 469         if (!(p->running & SNDRV_SB_CSP_ST_LOADED))
 470                 return -ENXIO;
 471
 472         /* clear supported formats */
 473         p->acc_format = 0;
 474         p->acc_channels = p->acc_width = p->acc_rates = 0;
 475         /* destroy QSound mixer element */
 476         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
 477                 snd_sb_qsound_destroy(p);
 478         }
 479         /* clear all flags */
 480         p->running = 0;
 481         p->mode = 0;
 482         return 0;
 483 }
 484
 485 /*
 486  * send command sequence to DSP
 487  */
 488 static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size)
 489 {
 490         int i;
 491         for (i = 0; i < size; i++) {
 492                 if (!snd_sbdsp_command(chip, seq[i]))
 493                         return -EIO;
 494         }
 495         return 0;
 496 }
 497
 498 /*
 499  * set CSP codec parameter
 500  */
 501 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val)
 502 {
 503         unsigned char dsp_cmd[3];
 504
 505         dsp_cmd[0] = 0x05;      /* CSP set codec parameter */
 506         dsp_cmd[1] = val;       /* Parameter value */
 507         dsp_cmd[2] = par;       /* Parameter */
 508         command_seq(chip, dsp_cmd, 3);
 509         snd_sbdsp_command(chip, 0x03);  /* DSP read? */
 510         if (snd_sbdsp_get_byte(chip) != par)
 511                 return -EIO;
 512         return 0;
 513 }
 514
 515 /*
 516  * set CSP register
 517  */
 518 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val)
 519 {
 520         unsigned char dsp_cmd[3];
 521
 522         dsp_cmd[0] = 0x0e;      /* CSP set register */
 523         dsp_cmd[1] = reg;       /* CSP Register */
 524         dsp_cmd[2] = val;       /* value */
 525         return command_seq(chip, dsp_cmd, 3);
 526 }
 527
 528 /*
 529  * read CSP register
 530  * return < 0 -> error
 531  */
 532 static int read_register(struct snd_sb *chip, unsigned char reg)
 533 {
 534         unsigned char dsp_cmd[2];
 535
 536         dsp_cmd[0] = 0x0f;      /* CSP read register */
 537         dsp_cmd[1] = reg;       /* CSP Register */
 538         command_seq(chip, dsp_cmd, 2);
 539         return snd_sbdsp_get_byte(chip);        /* Read DSP value */
 540 }
 541
 542 /*
 543  * set CSP mode register
 544  */
 545 static int set_mode_register(struct snd_sb *chip, unsigned char mode)
 546 {
 547         unsigned char dsp_cmd[2];
 548
 549         dsp_cmd[0] = 0x04;      /* CSP set mode register */
 550         dsp_cmd[1] = mode;      /* mode */
 551         return command_seq(chip, dsp_cmd, 2);
 552 }
 553
 554 /*
 555  * Detect CSP
 556  * return 0 if CSP exists.
 557  */
 558 static int csp_detect(struct snd_sb *chip, int *version)
 559 {
 560         unsigned char csp_test1, csp_test2;
 561         unsigned long flags;
 562         int result = -ENODEV;
 563
 564         spin_lock_irqsave(&chip->reg_lock, flags);
 565
 566         set_codec_parameter(chip, 0x00, 0x00);
 567         set_mode_register(chip, 0xfc);          /* 0xfc = ?? */
 568
 569         csp_test1 = read_register(chip, 0x83);
 570         set_register(chip, 0x83, ~csp_test1);
 571         csp_test2 = read_register(chip, 0x83);
 572         if (csp_test2 != (csp_test1 ^ 0xff))
 573                 goto __fail;
 574
 575         set_register(chip, 0x83, csp_test1);
 576         csp_test2 = read_register(chip, 0x83);
 577         if (csp_test2 != csp_test1)
 578                 goto __fail;
 579
 580         set_mode_register(chip, 0x00);          /* 0x00 = ? */
 581
 582         *version = get_version(chip);
 583         snd_sbdsp_reset(chip);  /* reset DSP after getversion! */
 584         if (*version >= 0x10 && *version <= 0x1f)
 585                 result = 0;             /* valid version id */
 586
 587       __fail:
 588         spin_unlock_irqrestore(&chip->reg_lock, flags);
 589         return result;
 590 }
 591
 592 /*
 593  * get CSP version number
 594  */
 595 static int get_version(struct snd_sb *chip)
 596 {
 597         unsigned char dsp_cmd[2];
 598
 599         dsp_cmd[0] = 0x08;      /* SB_DSP_!something! */
 600         dsp_cmd[1] = 0x03;      /* get chip version id? */
 601         command_seq(chip, dsp_cmd, 2);
 602
 603         return (snd_sbdsp_get_byte(chip));
 604 }
 605
 606 /*
 607  * check if the CSP version is valid
 608  */
 609 static int snd_sb_csp_check_version(struct snd_sb_csp * p)
 610 {
 611         if (p->version < 0x10 || p->version > 0x1f) {
 612                 snd_printd("%s: Invalid CSP version: 0x%x\n", __func__, p->version);
 613                 return 1;
 614         }
 615         return 0;
 616 }
 617
 618 /*
 619  * download microcode to CSP (microcode should have one "main" block).
 620  */
 621 static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags)
 622 {
 623         int status, i;
 624         int err;
 625         int result = -EIO;
 626         unsigned long flags;
 627
 628         spin_lock_irqsave(&p->chip->reg_lock, flags);
 629         snd_sbdsp_command(p->chip, 0x01);       /* CSP download command */
 630         if (snd_sbdsp_get_byte(p->chip)) {
 631                 snd_printd("%s: Download command failed\n", __func__);
 632                 goto __fail;
 633         }
 634         /* Send CSP low byte (size - 1) */
 635         snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
 636         /* Send high byte */
 637         snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8));
 638         /* send microcode sequence */
 639         /* load from kernel space */
 640         while (size--) {
 641                 if (!snd_sbdsp_command(p->chip, *buf++))
 642                         goto __fail;
 643         }
 644         if (snd_sbdsp_get_byte(p->chip))
 645                 goto __fail;
 646
 647         if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
 648                 i = 0;
 649                 /* some codecs (FastSpeech) take some time to initialize */
 650                 while (1) {
 651                         snd_sbdsp_command(p->chip, 0x03);
 652                         status = snd_sbdsp_get_byte(p->chip);
 653                         if (status == 0x55 || ++i >= 10)
 654                                 break;
 655                         udelay (10);
 656                 }
 657                 if (status != 0x55) {
 658                         snd_printd("%s: Microcode initialization failed\n", __func__);
 659                         goto __fail;
 660                 }
 661         } else {
 662                 /*
 663                  * Read mixer register SB_DSP4_DMASETUP after loading 'main' code.
 664                  * Start CSP chip if no 16bit DMA channel is set - some kind
 665                  * of autorun or perhaps a bugfix?
 666                  */
 667                 spin_lock(&p->chip->mixer_lock);
 668                 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
 669                 spin_unlock(&p->chip->mixer_lock);
 670                 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
 671                         err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
 672                                set_codec_parameter(p->chip, 0xff, 0x00));
 673                         snd_sbdsp_reset(p->chip);               /* really! */
 674                         if (err)
 675                                 goto __fail;
 676                         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 677                         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 678                 }
 679         }
 680         result = 0;
 681
 682       __fail:
 683         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 684         return result;
 685 }
 686
 687 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
 688 {
 689         int err;
 690         unsigned char *kbuf;
 691
 692         kbuf = memdup_user(buf, size);
 693         if (IS_ERR(kbuf))
 694                 return PTR_ERR(kbuf);
 695
 696         err = snd_sb_csp_load(p, kbuf, size, load_flags);
 697
 698         kfree(kbuf);
 699         return err;
 700 }
 701
 702 static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
 703 {
 704         static const char *const names[] = {
 705                 "sb16/mulaw_main.csp",
 706                 "sb16/alaw_main.csp",
 707                 "sb16/ima_adpcm_init.csp",
 708                 "sb16/ima_adpcm_playback.csp",
 709                 "sb16/ima_adpcm_capture.csp",
 710         };
 711         const struct firmware *program;
 712
 713         BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT);
 714         program = p->csp_programs[index];
 715         if (!program) {
 716                 int err = request_firmware(&program, names[index],
 717                                        p->chip->card->dev);
 718                 if (err < 0)
 719                         return err;
 720                 p->csp_programs[index] = program;
 721         }
 722         return snd_sb_csp_load(p, program->data, program->size, flags);
 723 }
 724
 725 /*
 726  * autoload hardware codec if necessary
 727  * return 0 if CSP is loaded and ready to run (p->running != 0)
 728  */
 729 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode)
 730 {
 731         unsigned long flags;
 732         int err = 0;
 733
 734         /* if CSP is running or manually loaded then exit */
 735         if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED))
 736                 return -EBUSY;
 737
 738         /* autoload microcode only if requested hardware codec is not already loaded */
 739         if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
 740                 p->running = SNDRV_SB_CSP_ST_AUTO;
 741         } else {
 742                 switch (pcm_sfmt) {
 743                 case SNDRV_PCM_FORMAT_MU_LAW:
 744                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0);
 745                         p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 746                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 747                         break;
 748                 case SNDRV_PCM_FORMAT_A_LAW:
 749                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0);
 750                         p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 751                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 752                         break;
 753                 case SNDRV_PCM_FORMAT_IMA_ADPCM:
 754                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT,
 755                                                        SNDRV_SB_CSP_LOAD_INITBLOCK);
 756                         if (err)
 757                                 break;
 758                         if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 759                                 err = snd_sb_csp_firmware_load
 760                                         (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0);
 761                                 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
 762                         } else {
 763                                 err = snd_sb_csp_firmware_load
 764                                         (p, CSP_PROGRAM_ADPCM_CAPTURE, 0);
 765                                 p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
 766                         }
 767                         p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 768                         break;
 769                 default:
 770                         /* Decouple CSP from IRQ and DMAREQ lines */
 771                         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
 772                                 spin_lock_irqsave(&p->chip->reg_lock, flags);
 773                                 set_mode_register(p->chip, 0xfc);
 774                                 set_mode_register(p->chip, 0x00);
 775                                 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 776                                 p->running = 0;                 /* clear autoloaded flag */
 777                         }
 778                         return -EINVAL;
 779                 }
 780                 if (err) {
 781                         p->acc_format = 0;
 782                         p->acc_channels = p->acc_width = p->acc_rates = 0;
 783
 784                         p->running = 0;                         /* clear autoloaded flag */
 785                         p->mode = 0;
 786                         return (err);
 787                 } else {
 788                         p->running = SNDRV_SB_CSP_ST_AUTO;      /* set autoloaded flag */
 789                         p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT;       /* only 16 bit data */
 790                         p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
 791                         p->acc_rates = SNDRV_SB_CSP_RATE_ALL;   /* HW codecs accept all rates */
 792                 }
 793
 794         }
 795         return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
 796 }
 797
 798 /*
 799  * start CSP
 800  */
 801 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels)
 802 {
 803         unsigned char s_type;   /* sample type */
 804         unsigned char mixL, mixR;
 805         int result = -EIO;
 806         unsigned long flags;
 807
 808         if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
 809                 snd_printd("%s: Microcode not loaded\n", __func__);
 810                 return -ENXIO;
 811         }
 812         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
 813                 snd_printd("%s: CSP already running\n", __func__);
 814                 return -EBUSY;
 815         }
 816         if (!(sample_width & p->acc_width)) {
 817                 snd_printd("%s: Unsupported PCM sample width\n", __func__);
 818                 return -EINVAL;
 819         }
 820         if (!(channels & p->acc_channels)) {
 821                 snd_printd("%s: Invalid number of channels\n", __func__);
 822                 return -EINVAL;
 823         }
 824
 825         /* Mute PCM volume */
 826         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 827         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 828         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 829         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 830         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 831
 832         spin_lock(&p->chip->reg_lock);
 833         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 834         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 835
 836         s_type = 0x00;
 837         if (channels == SNDRV_SB_CSP_MONO)
 838                 s_type = 0x11;  /* 000n 000n    (n = 1 if mono) */
 839         if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
 840                 s_type |= 0x22; /* 00dX 00dX    (d = 1 if 8 bit samples) */
 841
 842         if (set_codec_parameter(p->chip, 0x81, s_type)) {
 843                 snd_printd("%s: Set sample type command failed\n", __func__);
 844                 goto __fail;
 845         }
 846         if (set_codec_parameter(p->chip, 0x80, 0x00)) {
 847                 snd_printd("%s: Codec start command failed\n", __func__);
 848                 goto __fail;
 849         }
 850         p->run_width = sample_width;
 851         p->run_channels = channels;
 852
 853         p->running |= SNDRV_SB_CSP_ST_RUNNING;
 854
 855         if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
 856                 set_codec_parameter(p->chip, 0xe0, 0x01);
 857                 /* enable QSound decoder */
 858                 set_codec_parameter(p->chip, 0x00, 0xff);
 859                 set_codec_parameter(p->chip, 0x01, 0xff);
 860                 p->running |= SNDRV_SB_CSP_ST_QSOUND;
 861                 /* set QSound startup value */
 862                 snd_sb_csp_qsound_transfer(p);
 863         }
 864         result = 0;
 865
 866       __fail:
 867         spin_unlock(&p->chip->reg_lock);
 868
 869         /* restore PCM volume */
 870         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 871         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 872         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 873
 874         return result;
 875 }
 876
 877 /*
 878  * stop CSP
 879  */
 880 static int snd_sb_csp_stop(struct snd_sb_csp * p)
 881 {
 882         int result;
 883         unsigned char mixL, mixR;
 884         unsigned long flags;
 885
 886         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 887                 return 0;
 888
 889         /* Mute PCM volume */
 890         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 891         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 892         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 893         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 894         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 895
 896         spin_lock(&p->chip->reg_lock);
 897         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
 898                 set_codec_parameter(p->chip, 0xe0, 0x01);
 899                 /* disable QSound decoder */
 900                 set_codec_parameter(p->chip, 0x00, 0x00);
 901                 set_codec_parameter(p->chip, 0x01, 0x00);
 902
 903                 p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
 904         }
 905         result = set_mode_register(p->chip, 0xc0);      /* c0 = STOP */
 906         spin_unlock(&p->chip->reg_lock);
 907
 908         /* restore PCM volume */
 909         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 910         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 911         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 912
 913         if (!(result))
 914                 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
 915         return result;
 916 }
 917
 918 /*
 919  * pause CSP codec and hold DMA transfer
 920  */
 921 static int snd_sb_csp_pause(struct snd_sb_csp * p)
 922 {
 923         int result;
 924         unsigned long flags;
 925
 926         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 927                 return -EBUSY;
 928
 929         spin_lock_irqsave(&p->chip->reg_lock, flags);
 930         result = set_codec_parameter(p->chip, 0x80, 0xff);
 931         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 932         if (!(result))
 933                 p->running |= SNDRV_SB_CSP_ST_PAUSED;
 934
 935         return result;
 936 }
 937
 938 /*
 939  * restart CSP codec and resume DMA transfer
 940  */
 941 static int snd_sb_csp_restart(struct snd_sb_csp * p)
 942 {
 943         int result;
 944         unsigned long flags;
 945
 946         if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
 947                 return -EBUSY;
 948
 949         spin_lock_irqsave(&p->chip->reg_lock, flags);
 950         result = set_codec_parameter(p->chip, 0x80, 0x00);
 951         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 952         if (!(result))
 953                 p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
 954
 955         return result;
 956 }
 957
 958 /* ------------------------------ */
 959
 960 /*
 961  * QSound mixer control for PCM
 962  */
 963
 964 #define snd_sb_qsound_switch_info       snd_ctl_boolean_mono_info
 965
 966 static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 967 {
 968         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 969
 970         ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
 971         return 0;
 972 }
 973
 974 static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 975 {
 976         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 977         unsigned long flags;
 978         int change;
 979         unsigned char nval;
 980
 981         nval = ucontrol->value.integer.value[0] & 0x01;
 982         spin_lock_irqsave(&p->q_lock, flags);
 983         change = p->q_enabled != nval;
 984         p->q_enabled = nval;
 985         spin_unlock_irqrestore(&p->q_lock, flags);
 986         return change;
 987 }
 988
 989 static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 990 {
 991         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 992         uinfo->count = 2;
 993         uinfo->value.integer.min = 0;
 994         uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
 995         return 0;
 996 }
 997
 998 static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 999 {
1000         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
1001         unsigned long flags;
1002
1003         spin_lock_irqsave(&p->q_lock, flags);
1004         ucontrol->value.integer.value[0] = p->qpos_left;
1005         ucontrol->value.integer.value[1] = p->qpos_right;
1006         spin_unlock_irqrestore(&p->q_lock, flags);
1007         return 0;
1008 }
1009
1010 static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1011 {
1012         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
1013         unsigned long flags;
1014         int change;
1015         unsigned char nval1, nval2;
1016
1017         nval1 = ucontrol->value.integer.value[0];
1018         if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1019                 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1020         nval2 = ucontrol->value.integer.value[1];
1021         if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1022                 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1023         spin_lock_irqsave(&p->q_lock, flags);
1024         change = p->qpos_left != nval1 || p->qpos_right != nval2;
1025         p->qpos_left = nval1;
1026         p->qpos_right = nval2;
1027         p->qpos_changed = change;
1028         spin_unlock_irqrestore(&p->q_lock, flags);
1029         return change;
1030 }
1031
1032 static struct snd_kcontrol_new snd_sb_qsound_switch = {
1033         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1034         .name = "3D Control - Switch",
1035         .info = snd_sb_qsound_switch_info,
1036         .get = snd_sb_qsound_switch_get,
1037         .put = snd_sb_qsound_switch_put
1038 };
1039
1040 static struct snd_kcontrol_new snd_sb_qsound_space = {
1041         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1042         .name = "3D Control - Space",
1043         .info = snd_sb_qsound_space_info,
1044         .get = snd_sb_qsound_space_get,
1045         .put = snd_sb_qsound_space_put
1046 };
1047
1048 static int snd_sb_qsound_build(struct snd_sb_csp * p)
1049 {
1050         struct snd_card *card;
1051         int err;
1052
1053         if (snd_BUG_ON(!p))
1054                 return -EINVAL;
1055
1056         card = p->chip->card;
1057         p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
1058         p->qpos_changed = 0;
1059
1060         spin_lock_init(&p->q_lock);
1061
1062         if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
1063                 goto __error;
1064         if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
1065                 goto __error;
1066
1067         return 0;
1068
1069      __error:
1070         snd_sb_qsound_destroy(p);
1071         return err;
1072 }
1073
1074 static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
1075 {
1076         struct snd_card *card;
1077         unsigned long flags;
1078
1079         if (snd_BUG_ON(!p))
1080                 return;
1081
1082         card = p->chip->card;
1083
1084         down_write(&card->controls_rwsem);
1085         if (p->qsound_switch)
1086                 snd_ctl_remove(card, p->qsound_switch);
1087         if (p->qsound_space)
1088                 snd_ctl_remove(card, p->qsound_space);
1089         up_write(&card->controls_rwsem);
1090
1091         /* cancel pending transfer of QSound parameters */
1092         spin_lock_irqsave (&p->q_lock, flags);
1093         p->qpos_changed = 0;
1094         spin_unlock_irqrestore (&p->q_lock, flags);
1095 }
1096
1097 /*
1098  * Transfer qsound parameters to CSP,
1099  * function should be called from interrupt routine
1100  */
1101 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
1102 {
1103         int err = -ENXIO;
1104
1105         spin_lock(&p->q_lock);
1106         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1107                 set_codec_parameter(p->chip, 0xe0, 0x01);
1108                 /* left channel */
1109                 set_codec_parameter(p->chip, 0x00, p->qpos_left);
1110                 set_codec_parameter(p->chip, 0x02, 0x00);
1111                 /* right channel */
1112                 set_codec_parameter(p->chip, 0x00, p->qpos_right);
1113                 set_codec_parameter(p->chip, 0x03, 0x00);
1114                 err = 0;
1115         }
1116         p->qpos_changed = 0;
1117         spin_unlock(&p->q_lock);
1118         return err;
1119 }
1120
1121 /* ------------------------------ */
1122
1123 /*
1124  * proc interface
1125  */
1126 static int init_proc_entry(struct snd_sb_csp * p, int device)
1127 {
1128         char name[16];
1129         struct snd_info_entry *entry;
1130         sprintf(name, "cspD%d", device);
1131         if (! snd_card_proc_new(p->chip->card, name, &entry))
1132                 snd_info_set_text_ops(entry, p, info_read);
1133         return 0;
1134 }
1135
1136 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1137 {
1138         struct snd_sb_csp *p = entry->private_data;
1139
1140         snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
1141         snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
1142                     ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
1143                     ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
1144                     ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
1145         if (p->running & SNDRV_SB_CSP_ST_LOADED) {
1146                 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
1147                 snd_iprintf(buffer, "Sample rates: ");
1148                 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
1149                         snd_iprintf(buffer, "All\n");
1150                 } else {
1151                         snd_iprintf(buffer, "%s%s%s%s\n",
1152                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
1153                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
1154                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
1155                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
1156                 }
1157                 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
1158                         snd_iprintf(buffer, "QSound decoder %sabled\n",
1159                                     p->q_enabled ? "en" : "dis");
1160                 } else {
1161                         snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1162                                     p->acc_format,
1163                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
1164                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
1165                                     ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
1166                                     ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
1167                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
1168                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
1169                 }
1170         }
1171         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
1172                 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1173         }
1174         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
1175                 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
1176                             ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
1177                             ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
1178         }
1179         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1180                 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
1181                             p->qpos_left, p->qpos_right);
1182         }
1183 }
1184
1185 /* */
1186
1187 EXPORT_SYMBOL(snd_sb_csp_new);
1188
1189 /*
1190  * INIT part
1191  */
1192
1193 static int __init alsa_sb_csp_init(void)
1194 {
1195         return 0;
1196 }
1197
1198 static void __exit alsa_sb_csp_exit(void)
1199 {
1200 }
1201
1202 module_init(alsa_sb_csp_init)
1203 module_exit(alsa_sb_csp_exit)