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