git.oblomov.eu Git - linux-2.6/blob - sound/isa/sb/sb16_csp.c

   1 /*
   2  *  Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
   3  *                        Takashi Iwai <tiwai@suse.de>
   4  *
   5  *  SB16ASP/AWE32 CSP control
   6  *
   7  *  CSP microcode loader:
   8  *   alsa-tools/sb16_csp/
   9  *
  10  *   This program is free software; you can redistribute it and/or modify
  11  *   it under the terms of the GNU General Public License as published by
  12  *   the Free Software Foundation; either version 2 of the License, or
  13  *   (at your option) any later version.
  14  *
  15  *   This program is distributed in the hope that it will be useful,
  16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *   GNU General Public License for more details.
  19  *
  20  *   You should have received a copy of the GNU General Public License
  21  *   along with this program; if not, write to the Free Software
  22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23  *
  24  */
  25
  26 #include <sound/driver.h>
  27 #include <linux/delay.h>
  28 #include <linux/init.h>
  29 #include <linux/slab.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
  40 #ifdef SNDRV_LITTLE_ENDIAN
  41 #define CSP_HDR_VALUE(a,b,c,d)  ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
  42 #else
  43 #define CSP_HDR_VALUE(a,b,c,d)  ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
  44 #endif
  45
  46 #define RIFF_HEADER     CSP_HDR_VALUE('R', 'I', 'F', 'F')
  47 #define CSP__HEADER     CSP_HDR_VALUE('C', 'S', 'P', ' ')
  48 #define LIST_HEADER     CSP_HDR_VALUE('L', 'I', 'S', 'T')
  49 #define FUNC_HEADER     CSP_HDR_VALUE('f', 'u', 'n', 'c')
  50 #define CODE_HEADER     CSP_HDR_VALUE('c', 'o', 'd', 'e')
  51 #define INIT_HEADER     CSP_HDR_VALUE('i', 'n', 'i', 't')
  52 #define MAIN_HEADER     CSP_HDR_VALUE('m', 'a', 'i', 'n')
  53
  54 /*
  55  * RIFF data format
  56  */
  57 struct riff_header {
  58         __u32 name;
  59         __u32 len;
  60 };
  61
  62 struct desc_header {
  63         struct riff_header info;
  64         __u16 func_nr;
  65         __u16 VOC_type;
  66         __u16 flags_play_rec;
  67         __u16 flags_16bit_8bit;
  68         __u16 flags_stereo_mono;
  69         __u16 flags_rates;
  70 };
  71
  72 /*
  73  * prototypes
  74  */
  75 static void snd_sb_csp_free(struct snd_hwdep *hw);
  76 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file);
  77 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg);
  78 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file);
  79
  80 static int csp_detect(struct snd_sb *chip, int *version);
  81 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val);
  82 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val);
  83 static int read_register(struct snd_sb *chip, unsigned char reg);
  84 static int set_mode_register(struct snd_sb *chip, unsigned char mode);
  85 static int get_version(struct snd_sb *chip);
  86
  87 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
  88                                 struct snd_sb_csp_microcode __user * code);
  89 static int snd_sb_csp_unload(struct snd_sb_csp * p);
  90 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags);
  91 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode);
  92 static int snd_sb_csp_check_version(struct snd_sb_csp * p);
  93
  94 static int snd_sb_csp_use(struct snd_sb_csp * p);
  95 static int snd_sb_csp_unuse(struct snd_sb_csp * p);
  96 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels);
  97 static int snd_sb_csp_stop(struct snd_sb_csp * p);
  98 static int snd_sb_csp_pause(struct snd_sb_csp * p);
  99 static int snd_sb_csp_restart(struct snd_sb_csp * p);
 100
 101 static int snd_sb_qsound_build(struct snd_sb_csp * p);
 102 static void snd_sb_qsound_destroy(struct snd_sb_csp * p);
 103 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p);
 104
 105 static int init_proc_entry(struct snd_sb_csp * p, int device);
 106 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer);
 107
 108 /*
 109  * Detect CSP chip and create a new instance
 110  */
 111 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep)
 112 {
 113         struct snd_sb_csp *p;
 114         int version, err;
 115         struct snd_hwdep *hw;
 116
 117         if (rhwdep)
 118                 *rhwdep = NULL;
 119
 120         if (csp_detect(chip, &version))
 121                 return -ENODEV;
 122
 123         if ((err = snd_hwdep_new(chip->card, "SB16-CSP", device, &hw)) < 0)
 124                 return err;
 125
 126         if ((p = kzalloc(sizeof(*p), GFP_KERNEL)) == NULL) {
 127                 snd_device_free(chip->card, hw);
 128                 return -ENOMEM;
 129         }
 130         p->chip = chip;
 131         p->version = version;
 132
 133         /* CSP operators */
 134         p->ops.csp_use = snd_sb_csp_use;
 135         p->ops.csp_unuse = snd_sb_csp_unuse;
 136         p->ops.csp_autoload = snd_sb_csp_autoload;
 137         p->ops.csp_start = snd_sb_csp_start;
 138         p->ops.csp_stop = snd_sb_csp_stop;
 139         p->ops.csp_qsound_transfer = snd_sb_csp_qsound_transfer;
 140
 141         mutex_init(&p->access_mutex);
 142         sprintf(hw->name, "CSP v%d.%d", (version >> 4), (version & 0x0f));
 143         hw->iface = SNDRV_HWDEP_IFACE_SB16CSP;
 144         hw->private_data = p;
 145         hw->private_free = snd_sb_csp_free;
 146
 147         /* operators - only write/ioctl */
 148         hw->ops.open = snd_sb_csp_open;
 149         hw->ops.ioctl = snd_sb_csp_ioctl;
 150         hw->ops.release = snd_sb_csp_release;
 151
 152         /* create a proc entry */
 153         init_proc_entry(p, device);
 154         if (rhwdep)
 155                 *rhwdep = hw;
 156         return 0;
 157 }
 158
 159 /*
 160  * free_private for hwdep instance
 161  */
 162 static void snd_sb_csp_free(struct snd_hwdep *hwdep)
 163 {
 164         int i;
 165         struct snd_sb_csp *p = hwdep->private_data;
 166         if (p) {
 167                 if (p->running & SNDRV_SB_CSP_ST_RUNNING)
 168                         snd_sb_csp_stop(p);
 169                 for (i = 0; i < ARRAY_SIZE(p->csp_programs); ++i)
 170                         release_firmware(p->csp_programs[i]);
 171                 kfree(p);
 172         }
 173 }
 174
 175 /* ------------------------------ */
 176
 177 /*
 178  * open the device exclusively
 179  */
 180 static int snd_sb_csp_open(struct snd_hwdep * hw, struct file *file)
 181 {
 182         struct snd_sb_csp *p = hw->private_data;
 183         return (snd_sb_csp_use(p));
 184 }
 185
 186 /*
 187  * ioctl for hwdep device:
 188  */
 189 static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned int cmd, unsigned long arg)
 190 {
 191         struct snd_sb_csp *p = hw->private_data;
 192         struct snd_sb_csp_info info;
 193         struct snd_sb_csp_start start_info;
 194         int err;
 195
 196         snd_assert(p != NULL, return -EINVAL);
 197
 198         if (snd_sb_csp_check_version(p))
 199                 return -ENODEV;
 200
 201         switch (cmd) {
 202                 /* get information */
 203         case SNDRV_SB_CSP_IOCTL_INFO:
 204                 *info.codec_name = *p->codec_name;
 205                 info.func_nr = p->func_nr;
 206                 info.acc_format = p->acc_format;
 207                 info.acc_channels = p->acc_channels;
 208                 info.acc_width = p->acc_width;
 209                 info.acc_rates = p->acc_rates;
 210                 info.csp_mode = p->mode;
 211                 info.run_channels = p->run_channels;
 212                 info.run_width = p->run_width;
 213                 info.version = p->version;
 214                 info.state = p->running;
 215                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
 216                         err = -EFAULT;
 217                 else
 218                         err = 0;
 219                 break;
 220
 221                 /* load CSP microcode */
 222         case SNDRV_SB_CSP_IOCTL_LOAD_CODE:
 223                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
 224                        -EBUSY : snd_sb_csp_riff_load(p, (struct snd_sb_csp_microcode __user *) arg));
 225                 break;
 226         case SNDRV_SB_CSP_IOCTL_UNLOAD_CODE:
 227                 err = (p->running & SNDRV_SB_CSP_ST_RUNNING ?
 228                        -EBUSY : snd_sb_csp_unload(p));
 229                 break;
 230
 231                 /* change CSP running state */
 232         case SNDRV_SB_CSP_IOCTL_START:
 233                 if (copy_from_user(&start_info, (void __user *) arg, sizeof(start_info)))
 234                         err = -EFAULT;
 235                 else
 236                         err = snd_sb_csp_start(p, start_info.sample_width, start_info.channels);
 237                 break;
 238         case SNDRV_SB_CSP_IOCTL_STOP:
 239                 err = snd_sb_csp_stop(p);
 240                 break;
 241         case SNDRV_SB_CSP_IOCTL_PAUSE:
 242                 err = snd_sb_csp_pause(p);
 243                 break;
 244         case SNDRV_SB_CSP_IOCTL_RESTART:
 245                 err = snd_sb_csp_restart(p);
 246                 break;
 247         default:
 248                 err = -ENOTTY;
 249                 break;
 250         }
 251
 252         return err;
 253 }
 254
 255 /*
 256  * close the device
 257  */
 258 static int snd_sb_csp_release(struct snd_hwdep * hw, struct file *file)
 259 {
 260         struct snd_sb_csp *p = hw->private_data;
 261         return (snd_sb_csp_unuse(p));
 262 }
 263
 264 /* ------------------------------ */
 265
 266 /*
 267  * acquire device
 268  */
 269 static int snd_sb_csp_use(struct snd_sb_csp * p)
 270 {
 271         mutex_lock(&p->access_mutex);
 272         if (p->used) {
 273                 mutex_unlock(&p->access_mutex);
 274                 return -EAGAIN;
 275         }
 276         p->used++;
 277         mutex_unlock(&p->access_mutex);
 278
 279         return 0;
 280
 281 }
 282
 283 /*
 284  * release device
 285  */
 286 static int snd_sb_csp_unuse(struct snd_sb_csp * p)
 287 {
 288         mutex_lock(&p->access_mutex);
 289         p->used--;
 290         mutex_unlock(&p->access_mutex);
 291
 292         return 0;
 293 }
 294
 295 /*
 296  * load microcode via ioctl:
 297  * code is user-space pointer
 298  */
 299 static int snd_sb_csp_riff_load(struct snd_sb_csp * p,
 300                                 struct snd_sb_csp_microcode __user * mcode)
 301 {
 302         struct snd_sb_csp_mc_header info;
 303
 304         unsigned char __user *data_ptr;
 305         unsigned char __user *data_end;
 306         unsigned short func_nr = 0;
 307
 308         struct riff_header file_h, item_h, code_h;
 309         __u32 item_type;
 310         struct desc_header funcdesc_h;
 311
 312         unsigned long flags;
 313         int err;
 314
 315         if (copy_from_user(&info, mcode, sizeof(info)))
 316                 return -EFAULT;
 317         data_ptr = mcode->data;
 318
 319         if (copy_from_user(&file_h, data_ptr, sizeof(file_h)))
 320                 return -EFAULT;
 321         if ((file_h.name != RIFF_HEADER) ||
 322             (le32_to_cpu(file_h.len) >= SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE - sizeof(file_h))) {
 323                 snd_printd("%s: Invalid RIFF header\n", __FUNCTION__);
 324                 return -EINVAL;
 325         }
 326         data_ptr += sizeof(file_h);
 327         data_end = data_ptr + le32_to_cpu(file_h.len);
 328
 329         if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
 330                 return -EFAULT;
 331         if (item_type != CSP__HEADER) {
 332                 snd_printd("%s: Invalid RIFF file type\n", __FUNCTION__);
 333                 return -EINVAL;
 334         }
 335         data_ptr += sizeof (item_type);
 336
 337         for (; data_ptr < data_end; data_ptr += le32_to_cpu(item_h.len)) {
 338                 if (copy_from_user(&item_h, data_ptr, sizeof(item_h)))
 339                         return -EFAULT;
 340                 data_ptr += sizeof(item_h);
 341                 if (item_h.name != LIST_HEADER)
 342                         continue;
 343
 344                 if (copy_from_user(&item_type, data_ptr, sizeof(item_type)))
 345                          return -EFAULT;
 346                 switch (item_type) {
 347                 case FUNC_HEADER:
 348                         if (copy_from_user(&funcdesc_h, data_ptr + sizeof(item_type), sizeof(funcdesc_h)))
 349                                 return -EFAULT;
 350                         func_nr = le16_to_cpu(funcdesc_h.func_nr);
 351                         break;
 352                 case CODE_HEADER:
 353                         if (func_nr != info.func_req)
 354                                 break;  /* not required function, try next */
 355                         data_ptr += sizeof(item_type);
 356
 357                         /* destroy QSound mixer element */
 358                         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
 359                                 snd_sb_qsound_destroy(p);
 360                         }
 361                         /* Clear all flags */
 362                         p->running = 0;
 363                         p->mode = 0;
 364
 365                         /* load microcode blocks */
 366                         for (;;) {
 367                                 if (data_ptr >= data_end)
 368                                         return -EINVAL;
 369                                 if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
 370                                         return -EFAULT;
 371
 372                                 /* init microcode blocks */
 373                                 if (code_h.name != INIT_HEADER)
 374                                         break;
 375                                 data_ptr += sizeof(code_h);
 376                                 err = snd_sb_csp_load_user(p, data_ptr, le32_to_cpu(code_h.len),
 377                                                       SNDRV_SB_CSP_LOAD_INITBLOCK);
 378                                 if (err)
 379                                         return err;
 380                                 data_ptr += le32_to_cpu(code_h.len);
 381                         }
 382                         /* main microcode block */
 383                         if (copy_from_user(&code_h, data_ptr, sizeof(code_h)))
 384                                 return -EFAULT;
 385
 386                         if (code_h.name != MAIN_HEADER) {
 387                                 snd_printd("%s: Missing 'main' microcode\n", __FUNCTION__);
 388                                 return -EINVAL;
 389                         }
 390                         data_ptr += sizeof(code_h);
 391                         err = snd_sb_csp_load_user(p, data_ptr,
 392                                                    le32_to_cpu(code_h.len), 0);
 393                         if (err)
 394                                 return err;
 395
 396                         /* fill in codec header */
 397                         strlcpy(p->codec_name, info.codec_name, sizeof(p->codec_name));
 398                         p->func_nr = func_nr;
 399                         p->mode = le16_to_cpu(funcdesc_h.flags_play_rec);
 400                         switch (le16_to_cpu(funcdesc_h.VOC_type)) {
 401                         case 0x0001:    /* QSound decoder */
 402                                 if (le16_to_cpu(funcdesc_h.flags_play_rec) == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 403                                         if (snd_sb_qsound_build(p) == 0)
 404                                                 /* set QSound flag and clear all other mode flags */
 405                                                 p->mode = SNDRV_SB_CSP_MODE_QSOUND;
 406                                 }
 407                                 p->acc_format = 0;
 408                                 break;
 409                         case 0x0006:    /* A Law codec */
 410                                 p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 411                                 break;
 412                         case 0x0007:    /* Mu Law codec */
 413                                 p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 414                                 break;
 415                         case 0x0011:    /* what Creative thinks is IMA ADPCM codec */
 416                         case 0x0200:    /* Creative ADPCM codec */
 417                                 p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 418                                 break;
 419                         case    201:    /* Text 2 Speech decoder */
 420                                 /* TODO: Text2Speech handling routines */
 421                                 p->acc_format = 0;
 422                                 break;
 423                         case 0x0202:    /* Fast Speech 8 codec */
 424                         case 0x0203:    /* Fast Speech 10 codec */
 425                                 p->acc_format = SNDRV_PCM_FMTBIT_SPECIAL;
 426                                 break;
 427                         default:        /* other codecs are unsupported */
 428                                 p->acc_format = p->acc_width = p->acc_rates = 0;
 429                                 p->mode = 0;
 430                                 snd_printd("%s: Unsupported CSP codec type: 0x%04x\n",
 431                                            __FUNCTION__,
 432                                            le16_to_cpu(funcdesc_h.VOC_type));
 433                                 return -EINVAL;
 434                         }
 435                         p->acc_channels = le16_to_cpu(funcdesc_h.flags_stereo_mono);
 436                         p->acc_width = le16_to_cpu(funcdesc_h.flags_16bit_8bit);
 437                         p->acc_rates = le16_to_cpu(funcdesc_h.flags_rates);
 438
 439                         /* Decouple CSP from IRQ and DMAREQ lines */
 440                         spin_lock_irqsave(&p->chip->reg_lock, flags);
 441                         set_mode_register(p->chip, 0xfc);
 442                         set_mode_register(p->chip, 0x00);
 443                         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 444
 445                         /* finished loading successfully */
 446                         p->running = SNDRV_SB_CSP_ST_LOADED;    /* set LOADED flag */
 447                         return 0;
 448                 }
 449         }
 450         snd_printd("%s: Function #%d not found\n", __FUNCTION__, info.func_req);
 451         return -EINVAL;
 452 }
 453
 454 /*
 455  * unload CSP microcode
 456  */
 457 static int snd_sb_csp_unload(struct snd_sb_csp * p)
 458 {
 459         if (p->running & SNDRV_SB_CSP_ST_RUNNING)
 460                 return -EBUSY;
 461         if (!(p->running & SNDRV_SB_CSP_ST_LOADED))
 462                 return -ENXIO;
 463
 464         /* clear supported formats */
 465         p->acc_format = 0;
 466         p->acc_channels = p->acc_width = p->acc_rates = 0;
 467         /* destroy QSound mixer element */
 468         if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
 469                 snd_sb_qsound_destroy(p);
 470         }
 471         /* clear all flags */
 472         p->running = 0;
 473         p->mode = 0;
 474         return 0;
 475 }
 476
 477 /*
 478  * send command sequence to DSP
 479  */
 480 static inline int command_seq(struct snd_sb *chip, const unsigned char *seq, int size)
 481 {
 482         int i;
 483         for (i = 0; i < size; i++) {
 484                 if (!snd_sbdsp_command(chip, seq[i]))
 485                         return -EIO;
 486         }
 487         return 0;
 488 }
 489
 490 /*
 491  * set CSP codec parameter
 492  */
 493 static int set_codec_parameter(struct snd_sb *chip, unsigned char par, unsigned char val)
 494 {
 495         unsigned char dsp_cmd[3];
 496
 497         dsp_cmd[0] = 0x05;      /* CSP set codec parameter */
 498         dsp_cmd[1] = val;       /* Parameter value */
 499         dsp_cmd[2] = par;       /* Parameter */
 500         command_seq(chip, dsp_cmd, 3);
 501         snd_sbdsp_command(chip, 0x03);  /* DSP read? */
 502         if (snd_sbdsp_get_byte(chip) != par)
 503                 return -EIO;
 504         return 0;
 505 }
 506
 507 /*
 508  * set CSP register
 509  */
 510 static int set_register(struct snd_sb *chip, unsigned char reg, unsigned char val)
 511 {
 512         unsigned char dsp_cmd[3];
 513
 514         dsp_cmd[0] = 0x0e;      /* CSP set register */
 515         dsp_cmd[1] = reg;       /* CSP Register */
 516         dsp_cmd[2] = val;       /* value */
 517         return command_seq(chip, dsp_cmd, 3);
 518 }
 519
 520 /*
 521  * read CSP register
 522  * return < 0 -> error
 523  */
 524 static int read_register(struct snd_sb *chip, unsigned char reg)
 525 {
 526         unsigned char dsp_cmd[2];
 527
 528         dsp_cmd[0] = 0x0f;      /* CSP read register */
 529         dsp_cmd[1] = reg;       /* CSP Register */
 530         command_seq(chip, dsp_cmd, 2);
 531         return snd_sbdsp_get_byte(chip);        /* Read DSP value */
 532 }
 533
 534 /*
 535  * set CSP mode register
 536  */
 537 static int set_mode_register(struct snd_sb *chip, unsigned char mode)
 538 {
 539         unsigned char dsp_cmd[2];
 540
 541         dsp_cmd[0] = 0x04;      /* CSP set mode register */
 542         dsp_cmd[1] = mode;      /* mode */
 543         return command_seq(chip, dsp_cmd, 2);
 544 }
 545
 546 /*
 547  * Detect CSP
 548  * return 0 if CSP exists.
 549  */
 550 static int csp_detect(struct snd_sb *chip, int *version)
 551 {
 552         unsigned char csp_test1, csp_test2;
 553         unsigned long flags;
 554         int result = -ENODEV;
 555
 556         spin_lock_irqsave(&chip->reg_lock, flags);
 557
 558         set_codec_parameter(chip, 0x00, 0x00);
 559         set_mode_register(chip, 0xfc);          /* 0xfc = ?? */
 560
 561         csp_test1 = read_register(chip, 0x83);
 562         set_register(chip, 0x83, ~csp_test1);
 563         csp_test2 = read_register(chip, 0x83);
 564         if (csp_test2 != (csp_test1 ^ 0xff))
 565                 goto __fail;
 566
 567         set_register(chip, 0x83, csp_test1);
 568         csp_test2 = read_register(chip, 0x83);
 569         if (csp_test2 != csp_test1)
 570                 goto __fail;
 571
 572         set_mode_register(chip, 0x00);          /* 0x00 = ? */
 573
 574         *version = get_version(chip);
 575         snd_sbdsp_reset(chip);  /* reset DSP after getversion! */
 576         if (*version >= 0x10 && *version <= 0x1f)
 577                 result = 0;             /* valid version id */
 578
 579       __fail:
 580         spin_unlock_irqrestore(&chip->reg_lock, flags);
 581         return result;
 582 }
 583
 584 /*
 585  * get CSP version number
 586  */
 587 static int get_version(struct snd_sb *chip)
 588 {
 589         unsigned char dsp_cmd[2];
 590
 591         dsp_cmd[0] = 0x08;      /* SB_DSP_!something! */
 592         dsp_cmd[1] = 0x03;      /* get chip version id? */
 593         command_seq(chip, dsp_cmd, 2);
 594
 595         return (snd_sbdsp_get_byte(chip));
 596 }
 597
 598 /*
 599  * check if the CSP version is valid
 600  */
 601 static int snd_sb_csp_check_version(struct snd_sb_csp * p)
 602 {
 603         if (p->version < 0x10 || p->version > 0x1f) {
 604                 snd_printd("%s: Invalid CSP version: 0x%x\n", __FUNCTION__, p->version);
 605                 return 1;
 606         }
 607         return 0;
 608 }
 609
 610 /*
 611  * download microcode to CSP (microcode should have one "main" block).
 612  */
 613 static int snd_sb_csp_load(struct snd_sb_csp * p, const unsigned char *buf, int size, int load_flags)
 614 {
 615         int status, i;
 616         int err;
 617         int result = -EIO;
 618         unsigned long flags;
 619
 620         spin_lock_irqsave(&p->chip->reg_lock, flags);
 621         snd_sbdsp_command(p->chip, 0x01);       /* CSP download command */
 622         if (snd_sbdsp_get_byte(p->chip)) {
 623                 snd_printd("%s: Download command failed\n", __FUNCTION__);
 624                 goto __fail;
 625         }
 626         /* Send CSP low byte (size - 1) */
 627         snd_sbdsp_command(p->chip, (unsigned char)(size - 1));
 628         /* Send high byte */
 629         snd_sbdsp_command(p->chip, (unsigned char)((size - 1) >> 8));
 630         /* send microcode sequence */
 631         /* load from kernel space */
 632         while (size--) {
 633                 if (!snd_sbdsp_command(p->chip, *buf++))
 634                         goto __fail;
 635         }
 636         if (snd_sbdsp_get_byte(p->chip))
 637                 goto __fail;
 638
 639         if (load_flags & SNDRV_SB_CSP_LOAD_INITBLOCK) {
 640                 i = 0;
 641                 /* some codecs (FastSpeech) take some time to initialize */
 642                 while (1) {
 643                         snd_sbdsp_command(p->chip, 0x03);
 644                         status = snd_sbdsp_get_byte(p->chip);
 645                         if (status == 0x55 || ++i >= 10)
 646                                 break;
 647                         udelay (10);
 648                 }
 649                 if (status != 0x55) {
 650                         snd_printd("%s: Microcode initialization failed\n", __FUNCTION__);
 651                         goto __fail;
 652                 }
 653         } else {
 654                 /*
 655                  * Read mixer register SB_DSP4_DMASETUP after loading 'main' code.
 656                  * Start CSP chip if no 16bit DMA channel is set - some kind
 657                  * of autorun or perhaps a bugfix?
 658                  */
 659                 spin_lock(&p->chip->mixer_lock);
 660                 status = snd_sbmixer_read(p->chip, SB_DSP4_DMASETUP);
 661                 spin_unlock(&p->chip->mixer_lock);
 662                 if (!(status & (SB_DMASETUP_DMA7 | SB_DMASETUP_DMA6 | SB_DMASETUP_DMA5))) {
 663                         err = (set_codec_parameter(p->chip, 0xaa, 0x00) ||
 664                                set_codec_parameter(p->chip, 0xff, 0x00));
 665                         snd_sbdsp_reset(p->chip);               /* really! */
 666                         if (err)
 667                                 goto __fail;
 668                         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 669                         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 670                 }
 671         }
 672         result = 0;
 673
 674       __fail:
 675         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 676         return result;
 677 }
 678
 679 static int snd_sb_csp_load_user(struct snd_sb_csp * p, const unsigned char __user *buf, int size, int load_flags)
 680 {
 681         int err = -ENOMEM;
 682         unsigned char *kbuf = kmalloc(size, GFP_KERNEL);
 683         if (kbuf) {
 684                 if (copy_from_user(kbuf, buf, size))
 685                         err = -EFAULT;
 686                 else
 687                         err = snd_sb_csp_load(p, kbuf, size, load_flags);
 688                 kfree(kbuf);
 689         }
 690         return err;
 691 }
 692
 693 #define FIRMWARE_IN_THE_KERNEL
 694
 695 #ifdef FIRMWARE_IN_THE_KERNEL
 696 #include "sb16_csp_codecs.h"
 697
 698 static const struct firmware snd_sb_csp_static_programs[] = {
 699         { .data = mulaw_main, .size = sizeof mulaw_main },
 700         { .data = alaw_main, .size = sizeof alaw_main },
 701         { .data = ima_adpcm_init, .size = sizeof ima_adpcm_init },
 702         { .data = ima_adpcm_playback, .size = sizeof ima_adpcm_playback },
 703         { .data = ima_adpcm_capture, .size = sizeof ima_adpcm_capture },
 704 };
 705 #endif
 706
 707 static int snd_sb_csp_firmware_load(struct snd_sb_csp *p, int index, int flags)
 708 {
 709         static const char *const names[] = {
 710                 "sb16/mulaw_main.csp",
 711                 "sb16/alaw_main.csp",
 712                 "sb16/ima_adpcm_init.csp",
 713                 "sb16/ima_adpcm_playback.csp",
 714                 "sb16/ima_adpcm_capture.csp",
 715         };
 716         const struct firmware *program;
 717         int err;
 718
 719         BUILD_BUG_ON(ARRAY_SIZE(names) != CSP_PROGRAM_COUNT);
 720         program = p->csp_programs[index];
 721         if (!program) {
 722                 err = request_firmware(&program, names[index],
 723                                        p->chip->card->dev);
 724                 if (err >= 0)
 725                         p->csp_programs[index] = program;
 726                 else {
 727 #ifdef FIRMWARE_IN_THE_KERNEL
 728                         program = &snd_sb_csp_static_programs[index];
 729 #else
 730                         return err;
 731 #endif
 732                 }
 733         }
 734         return snd_sb_csp_load(p, program->data, program->size, flags);
 735 }
 736
 737 /*
 738  * autoload hardware codec if necessary
 739  * return 0 if CSP is loaded and ready to run (p->running != 0)
 740  */
 741 static int snd_sb_csp_autoload(struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode)
 742 {
 743         unsigned long flags;
 744         int err = 0;
 745
 746         /* if CSP is running or manually loaded then exit */
 747         if (p->running & (SNDRV_SB_CSP_ST_RUNNING | SNDRV_SB_CSP_ST_LOADED))
 748                 return -EBUSY;
 749
 750         /* autoload microcode only if requested hardware codec is not already loaded */
 751         if (((1 << pcm_sfmt) & p->acc_format) && (play_rec_mode & p->mode)) {
 752                 p->running = SNDRV_SB_CSP_ST_AUTO;
 753         } else {
 754                 switch (pcm_sfmt) {
 755                 case SNDRV_PCM_FORMAT_MU_LAW:
 756                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_MULAW, 0);
 757                         p->acc_format = SNDRV_PCM_FMTBIT_MU_LAW;
 758                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 759                         break;
 760                 case SNDRV_PCM_FORMAT_A_LAW:
 761                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ALAW, 0);
 762                         p->acc_format = SNDRV_PCM_FMTBIT_A_LAW;
 763                         p->mode = SNDRV_SB_CSP_MODE_DSP_READ | SNDRV_SB_CSP_MODE_DSP_WRITE;
 764                         break;
 765                 case SNDRV_PCM_FORMAT_IMA_ADPCM:
 766                         err = snd_sb_csp_firmware_load(p, CSP_PROGRAM_ADPCM_INIT,
 767                                                        SNDRV_SB_CSP_LOAD_INITBLOCK);
 768                         if (err)
 769                                 break;
 770                         if (play_rec_mode == SNDRV_SB_CSP_MODE_DSP_WRITE) {
 771                                 err = snd_sb_csp_firmware_load
 772                                         (p, CSP_PROGRAM_ADPCM_PLAYBACK, 0);
 773                                 p->mode = SNDRV_SB_CSP_MODE_DSP_WRITE;
 774                         } else {
 775                                 err = snd_sb_csp_firmware_load
 776                                         (p, CSP_PROGRAM_ADPCM_CAPTURE, 0);
 777                                 p->mode = SNDRV_SB_CSP_MODE_DSP_READ;
 778                         }
 779                         p->acc_format = SNDRV_PCM_FMTBIT_IMA_ADPCM;
 780                         break;
 781                 default:
 782                         /* Decouple CSP from IRQ and DMAREQ lines */
 783                         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
 784                                 spin_lock_irqsave(&p->chip->reg_lock, flags);
 785                                 set_mode_register(p->chip, 0xfc);
 786                                 set_mode_register(p->chip, 0x00);
 787                                 spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 788                                 p->running = 0;                 /* clear autoloaded flag */
 789                         }
 790                         return -EINVAL;
 791                 }
 792                 if (err) {
 793                         p->acc_format = 0;
 794                         p->acc_channels = p->acc_width = p->acc_rates = 0;
 795
 796                         p->running = 0;                         /* clear autoloaded flag */
 797                         p->mode = 0;
 798                         return (err);
 799                 } else {
 800                         p->running = SNDRV_SB_CSP_ST_AUTO;      /* set autoloaded flag */
 801                         p->acc_width = SNDRV_SB_CSP_SAMPLE_16BIT;       /* only 16 bit data */
 802                         p->acc_channels = SNDRV_SB_CSP_MONO | SNDRV_SB_CSP_STEREO;
 803                         p->acc_rates = SNDRV_SB_CSP_RATE_ALL;   /* HW codecs accept all rates */
 804                 }
 805
 806         }
 807         return (p->running & SNDRV_SB_CSP_ST_AUTO) ? 0 : -ENXIO;
 808 }
 809
 810 /*
 811  * start CSP
 812  */
 813 static int snd_sb_csp_start(struct snd_sb_csp * p, int sample_width, int channels)
 814 {
 815         unsigned char s_type;   /* sample type */
 816         unsigned char mixL, mixR;
 817         int result = -EIO;
 818         unsigned long flags;
 819
 820         if (!(p->running & (SNDRV_SB_CSP_ST_LOADED | SNDRV_SB_CSP_ST_AUTO))) {
 821                 snd_printd("%s: Microcode not loaded\n", __FUNCTION__);
 822                 return -ENXIO;
 823         }
 824         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
 825                 snd_printd("%s: CSP already running\n", __FUNCTION__);
 826                 return -EBUSY;
 827         }
 828         if (!(sample_width & p->acc_width)) {
 829                 snd_printd("%s: Unsupported PCM sample width\n", __FUNCTION__);
 830                 return -EINVAL;
 831         }
 832         if (!(channels & p->acc_channels)) {
 833                 snd_printd("%s: Invalid number of channels\n", __FUNCTION__);
 834                 return -EINVAL;
 835         }
 836
 837         /* Mute PCM volume */
 838         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 839         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 840         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 841         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 842         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 843
 844         spin_lock(&p->chip->reg_lock);
 845         set_mode_register(p->chip, 0xc0);       /* c0 = STOP */
 846         set_mode_register(p->chip, 0x70);       /* 70 = RUN */
 847
 848         s_type = 0x00;
 849         if (channels == SNDRV_SB_CSP_MONO)
 850                 s_type = 0x11;  /* 000n 000n    (n = 1 if mono) */
 851         if (sample_width == SNDRV_SB_CSP_SAMPLE_8BIT)
 852                 s_type |= 0x22; /* 00dX 00dX    (d = 1 if 8 bit samples) */
 853
 854         if (set_codec_parameter(p->chip, 0x81, s_type)) {
 855                 snd_printd("%s: Set sample type command failed\n", __FUNCTION__);
 856                 goto __fail;
 857         }
 858         if (set_codec_parameter(p->chip, 0x80, 0x00)) {
 859                 snd_printd("%s: Codec start command failed\n", __FUNCTION__);
 860                 goto __fail;
 861         }
 862         p->run_width = sample_width;
 863         p->run_channels = channels;
 864
 865         p->running |= SNDRV_SB_CSP_ST_RUNNING;
 866
 867         if (p->mode & SNDRV_SB_CSP_MODE_QSOUND) {
 868                 set_codec_parameter(p->chip, 0xe0, 0x01);
 869                 /* enable QSound decoder */
 870                 set_codec_parameter(p->chip, 0x00, 0xff);
 871                 set_codec_parameter(p->chip, 0x01, 0xff);
 872                 p->running |= SNDRV_SB_CSP_ST_QSOUND;
 873                 /* set QSound startup value */
 874                 snd_sb_csp_qsound_transfer(p);
 875         }
 876         result = 0;
 877
 878       __fail:
 879         spin_unlock(&p->chip->reg_lock);
 880
 881         /* restore PCM volume */
 882         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 883         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 884         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 885
 886         return result;
 887 }
 888
 889 /*
 890  * stop CSP
 891  */
 892 static int snd_sb_csp_stop(struct snd_sb_csp * p)
 893 {
 894         int result;
 895         unsigned char mixL, mixR;
 896         unsigned long flags;
 897
 898         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 899                 return 0;
 900
 901         /* Mute PCM volume */
 902         spin_lock_irqsave(&p->chip->mixer_lock, flags);
 903         mixL = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV);
 904         mixR = snd_sbmixer_read(p->chip, SB_DSP4_PCM_DEV + 1);
 905         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL & 0x7);
 906         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR & 0x7);
 907
 908         spin_lock(&p->chip->reg_lock);
 909         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
 910                 set_codec_parameter(p->chip, 0xe0, 0x01);
 911                 /* disable QSound decoder */
 912                 set_codec_parameter(p->chip, 0x00, 0x00);
 913                 set_codec_parameter(p->chip, 0x01, 0x00);
 914
 915                 p->running &= ~SNDRV_SB_CSP_ST_QSOUND;
 916         }
 917         result = set_mode_register(p->chip, 0xc0);      /* c0 = STOP */
 918         spin_unlock(&p->chip->reg_lock);
 919
 920         /* restore PCM volume */
 921         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV, mixL);
 922         snd_sbmixer_write(p->chip, SB_DSP4_PCM_DEV + 1, mixR);
 923         spin_unlock_irqrestore(&p->chip->mixer_lock, flags);
 924
 925         if (!(result))
 926                 p->running &= ~(SNDRV_SB_CSP_ST_PAUSED | SNDRV_SB_CSP_ST_RUNNING);
 927         return result;
 928 }
 929
 930 /*
 931  * pause CSP codec and hold DMA transfer
 932  */
 933 static int snd_sb_csp_pause(struct snd_sb_csp * p)
 934 {
 935         int result;
 936         unsigned long flags;
 937
 938         if (!(p->running & SNDRV_SB_CSP_ST_RUNNING))
 939                 return -EBUSY;
 940
 941         spin_lock_irqsave(&p->chip->reg_lock, flags);
 942         result = set_codec_parameter(p->chip, 0x80, 0xff);
 943         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 944         if (!(result))
 945                 p->running |= SNDRV_SB_CSP_ST_PAUSED;
 946
 947         return result;
 948 }
 949
 950 /*
 951  * restart CSP codec and resume DMA transfer
 952  */
 953 static int snd_sb_csp_restart(struct snd_sb_csp * p)
 954 {
 955         int result;
 956         unsigned long flags;
 957
 958         if (!(p->running & SNDRV_SB_CSP_ST_PAUSED))
 959                 return -EBUSY;
 960
 961         spin_lock_irqsave(&p->chip->reg_lock, flags);
 962         result = set_codec_parameter(p->chip, 0x80, 0x00);
 963         spin_unlock_irqrestore(&p->chip->reg_lock, flags);
 964         if (!(result))
 965                 p->running &= ~SNDRV_SB_CSP_ST_PAUSED;
 966
 967         return result;
 968 }
 969
 970 /* ------------------------------ */
 971
 972 /*
 973  * QSound mixer control for PCM
 974  */
 975
 976 static int snd_sb_qsound_switch_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 977 {
 978         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 979         uinfo->count = 1;
 980         uinfo->value.integer.min = 0;
 981         uinfo->value.integer.max = 1;
 982         return 0;
 983 }
 984
 985 static int snd_sb_qsound_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 986 {
 987         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 988
 989         ucontrol->value.integer.value[0] = p->q_enabled ? 1 : 0;
 990         return 0;
 991 }
 992
 993 static int snd_sb_qsound_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 994 {
 995         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
 996         unsigned long flags;
 997         int change;
 998         unsigned char nval;
 999
1000         nval = ucontrol->value.integer.value[0] & 0x01;
1001         spin_lock_irqsave(&p->q_lock, flags);
1002         change = p->q_enabled != nval;
1003         p->q_enabled = nval;
1004         spin_unlock_irqrestore(&p->q_lock, flags);
1005         return change;
1006 }
1007
1008 static int snd_sb_qsound_space_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1009 {
1010         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1011         uinfo->count = 2;
1012         uinfo->value.integer.min = 0;
1013         uinfo->value.integer.max = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1014         return 0;
1015 }
1016
1017 static int snd_sb_qsound_space_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1018 {
1019         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
1020         unsigned long flags;
1021
1022         spin_lock_irqsave(&p->q_lock, flags);
1023         ucontrol->value.integer.value[0] = p->qpos_left;
1024         ucontrol->value.integer.value[1] = p->qpos_right;
1025         spin_unlock_irqrestore(&p->q_lock, flags);
1026         return 0;
1027 }
1028
1029 static int snd_sb_qsound_space_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1030 {
1031         struct snd_sb_csp *p = snd_kcontrol_chip(kcontrol);
1032         unsigned long flags;
1033         int change;
1034         unsigned char nval1, nval2;
1035
1036         nval1 = ucontrol->value.integer.value[0];
1037         if (nval1 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1038                 nval1 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1039         nval2 = ucontrol->value.integer.value[1];
1040         if (nval2 > SNDRV_SB_CSP_QSOUND_MAX_RIGHT)
1041                 nval2 = SNDRV_SB_CSP_QSOUND_MAX_RIGHT;
1042         spin_lock_irqsave(&p->q_lock, flags);
1043         change = p->qpos_left != nval1 || p->qpos_right != nval2;
1044         p->qpos_left = nval1;
1045         p->qpos_right = nval2;
1046         p->qpos_changed = change;
1047         spin_unlock_irqrestore(&p->q_lock, flags);
1048         return change;
1049 }
1050
1051 static struct snd_kcontrol_new snd_sb_qsound_switch = {
1052         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1053         .name = "3D Control - Switch",
1054         .info = snd_sb_qsound_switch_info,
1055         .get = snd_sb_qsound_switch_get,
1056         .put = snd_sb_qsound_switch_put
1057 };
1058
1059 static struct snd_kcontrol_new snd_sb_qsound_space = {
1060         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1061         .name = "3D Control - Space",
1062         .info = snd_sb_qsound_space_info,
1063         .get = snd_sb_qsound_space_get,
1064         .put = snd_sb_qsound_space_put
1065 };
1066
1067 static int snd_sb_qsound_build(struct snd_sb_csp * p)
1068 {
1069         struct snd_card *card;
1070         int err;
1071
1072         snd_assert(p != NULL, return -EINVAL);
1073
1074         card = p->chip->card;
1075         p->qpos_left = p->qpos_right = SNDRV_SB_CSP_QSOUND_MAX_RIGHT / 2;
1076         p->qpos_changed = 0;
1077
1078         spin_lock_init(&p->q_lock);
1079
1080         if ((err = snd_ctl_add(card, p->qsound_switch = snd_ctl_new1(&snd_sb_qsound_switch, p))) < 0)
1081                 goto __error;
1082         if ((err = snd_ctl_add(card, p->qsound_space = snd_ctl_new1(&snd_sb_qsound_space, p))) < 0)
1083                 goto __error;
1084
1085         return 0;
1086
1087      __error:
1088         snd_sb_qsound_destroy(p);
1089         return err;
1090 }
1091
1092 static void snd_sb_qsound_destroy(struct snd_sb_csp * p)
1093 {
1094         struct snd_card *card;
1095         unsigned long flags;
1096
1097         snd_assert(p != NULL, return);
1098
1099         card = p->chip->card;
1100
1101         down_write(&card->controls_rwsem);
1102         if (p->qsound_switch)
1103                 snd_ctl_remove(card, p->qsound_switch);
1104         if (p->qsound_space)
1105                 snd_ctl_remove(card, p->qsound_space);
1106         up_write(&card->controls_rwsem);
1107
1108         /* cancel pending transfer of QSound parameters */
1109         spin_lock_irqsave (&p->q_lock, flags);
1110         p->qpos_changed = 0;
1111         spin_unlock_irqrestore (&p->q_lock, flags);
1112 }
1113
1114 /*
1115  * Transfer qsound parameters to CSP,
1116  * function should be called from interrupt routine
1117  */
1118 static int snd_sb_csp_qsound_transfer(struct snd_sb_csp * p)
1119 {
1120         int err = -ENXIO;
1121
1122         spin_lock(&p->q_lock);
1123         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1124                 set_codec_parameter(p->chip, 0xe0, 0x01);
1125                 /* left channel */
1126                 set_codec_parameter(p->chip, 0x00, p->qpos_left);
1127                 set_codec_parameter(p->chip, 0x02, 0x00);
1128                 /* right channel */
1129                 set_codec_parameter(p->chip, 0x00, p->qpos_right);
1130                 set_codec_parameter(p->chip, 0x03, 0x00);
1131                 err = 0;
1132         }
1133         p->qpos_changed = 0;
1134         spin_unlock(&p->q_lock);
1135         return err;
1136 }
1137
1138 /* ------------------------------ */
1139
1140 /*
1141  * proc interface
1142  */
1143 static int init_proc_entry(struct snd_sb_csp * p, int device)
1144 {
1145         char name[16];
1146         struct snd_info_entry *entry;
1147         sprintf(name, "cspD%d", device);
1148         if (! snd_card_proc_new(p->chip->card, name, &entry))
1149                 snd_info_set_text_ops(entry, p, info_read);
1150         return 0;
1151 }
1152
1153 static void info_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1154 {
1155         struct snd_sb_csp *p = entry->private_data;
1156
1157         snd_iprintf(buffer, "Creative Signal Processor [v%d.%d]\n", (p->version >> 4), (p->version & 0x0f));
1158         snd_iprintf(buffer, "State: %cx%c%c%c\n", ((p->running & SNDRV_SB_CSP_ST_QSOUND) ? 'Q' : '-'),
1159                     ((p->running & SNDRV_SB_CSP_ST_PAUSED) ? 'P' : '-'),
1160                     ((p->running & SNDRV_SB_CSP_ST_RUNNING) ? 'R' : '-'),
1161                     ((p->running & SNDRV_SB_CSP_ST_LOADED) ? 'L' : '-'));
1162         if (p->running & SNDRV_SB_CSP_ST_LOADED) {
1163                 snd_iprintf(buffer, "Codec: %s [func #%d]\n", p->codec_name, p->func_nr);
1164                 snd_iprintf(buffer, "Sample rates: ");
1165                 if (p->acc_rates == SNDRV_SB_CSP_RATE_ALL) {
1166                         snd_iprintf(buffer, "All\n");
1167                 } else {
1168                         snd_iprintf(buffer, "%s%s%s%s\n",
1169                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_8000) ? "8000Hz " : ""),
1170                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_11025) ? "11025Hz " : ""),
1171                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_22050) ? "22050Hz " : ""),
1172                                     ((p->acc_rates & SNDRV_SB_CSP_RATE_44100) ? "44100Hz" : ""));
1173                 }
1174                 if (p->mode == SNDRV_SB_CSP_MODE_QSOUND) {
1175                         snd_iprintf(buffer, "QSound decoder %sabled\n",
1176                                     p->q_enabled ? "en" : "dis");
1177                 } else {
1178                         snd_iprintf(buffer, "PCM format ID: 0x%x (%s/%s) [%s/%s] [%s/%s]\n",
1179                                     p->acc_format,
1180                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? "16bit" : "-"),
1181                                     ((p->acc_width & SNDRV_SB_CSP_SAMPLE_8BIT) ? "8bit" : "-"),
1182                                     ((p->acc_channels & SNDRV_SB_CSP_MONO) ? "mono" : "-"),
1183                                     ((p->acc_channels & SNDRV_SB_CSP_STEREO) ? "stereo" : "-"),
1184                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) ? "playback" : "-"),
1185                                     ((p->mode & SNDRV_SB_CSP_MODE_DSP_READ) ? "capture" : "-"));
1186                 }
1187         }
1188         if (p->running & SNDRV_SB_CSP_ST_AUTO) {
1189                 snd_iprintf(buffer, "Autoloaded Mu-Law, A-Law or Ima-ADPCM hardware codec\n");
1190         }
1191         if (p->running & SNDRV_SB_CSP_ST_RUNNING) {
1192                 snd_iprintf(buffer, "Processing %dbit %s PCM samples\n",
1193                             ((p->run_width & SNDRV_SB_CSP_SAMPLE_16BIT) ? 16 : 8),
1194                             ((p->run_channels & SNDRV_SB_CSP_MONO) ? "mono" : "stereo"));
1195         }
1196         if (p->running & SNDRV_SB_CSP_ST_QSOUND) {
1197                 snd_iprintf(buffer, "Qsound position: left = 0x%x, right = 0x%x\n",
1198                             p->qpos_left, p->qpos_right);
1199         }
1200 }
1201
1202 /* */
1203
1204 EXPORT_SYMBOL(snd_sb_csp_new);
1205
1206 /*
1207  * INIT part
1208  */
1209
1210 static int __init alsa_sb_csp_init(void)
1211 {
1212         return 0;
1213 }
1214
1215 static void __exit alsa_sb_csp_exit(void)
1216 {
1217 }
1218
1219 module_init(alsa_sb_csp_init)
1220 module_exit(alsa_sb_csp_exit)