err.no Git - linux-2.6/blob - sound/pci/fm801.c

   1 /*
   2  *  The driver for the ForteMedia FM801 based soundcards
   3  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   4  *
   5  *  Support FM only card by Andy Shevchenko <andy@smile.org.ua>
   6  *
   7  *   This program is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License as published by
   9  *   the Free Software Foundation; either version 2 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20  *
  21  */
  22
  23 #include <sound/driver.h>
  24 #include <linux/delay.h>
  25 #include <linux/init.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/pci.h>
  28 #include <linux/slab.h>
  29 #include <linux/moduleparam.h>
  30 #include <sound/core.h>
  31 #include <sound/pcm.h>
  32 #include <sound/ac97_codec.h>
  33 #include <sound/mpu401.h>
  34 #include <sound/opl3.h>
  35 #include <sound/initval.h>
  36
  37 #include <asm/io.h>
  38
  39 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
  40 #include <sound/tea575x-tuner.h>
  41 #define TEA575X_RADIO 1
  42 #endif
  43
  44 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  45 MODULE_DESCRIPTION("ForteMedia FM801");
  46 MODULE_LICENSE("GPL");
  47 MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
  48                 "{Genius,SoundMaker Live 5.1}}");
  49
  50 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  51 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  52 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  53 /*
  54  *  Enable TEA575x tuner
  55  *    1 = MediaForte 256-PCS
  56  *    2 = MediaForte 256-PCPR
  57  *    3 = MediaForte 64-PCR
  58  *   16 = setup tuner only (this is additional bit), i.e. SF-64-PCR FM card
  59  *  High 16-bits are video (radio) device number + 1
  60  */
  61 static int tea575x_tuner[SNDRV_CARDS];
  62
  63 module_param_array(index, int, NULL, 0444);
  64 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
  65 module_param_array(id, charp, NULL, 0444);
  66 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
  67 module_param_array(enable, bool, NULL, 0444);
  68 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
  69 module_param_array(tea575x_tuner, int, NULL, 0444);
  70 MODULE_PARM_DESC(tea575x_tuner, "Enable TEA575x tuner.");
  71
  72 /*
  73  *  Direct registers
  74  */
  75
  76 #define FM801_REG(chip, reg)    (chip->port + FM801_##reg)
  77
  78 #define FM801_PCM_VOL           0x00    /* PCM Output Volume */
  79 #define FM801_FM_VOL            0x02    /* FM Output Volume */
  80 #define FM801_I2S_VOL           0x04    /* I2S Volume */
  81 #define FM801_REC_SRC           0x06    /* Record Source */
  82 #define FM801_PLY_CTRL          0x08    /* Playback Control */
  83 #define FM801_PLY_COUNT         0x0a    /* Playback Count */
  84 #define FM801_PLY_BUF1          0x0c    /* Playback Bufer I */
  85 #define FM801_PLY_BUF2          0x10    /* Playback Buffer II */
  86 #define FM801_CAP_CTRL          0x14    /* Capture Control */
  87 #define FM801_CAP_COUNT         0x16    /* Capture Count */
  88 #define FM801_CAP_BUF1          0x18    /* Capture Buffer I */
  89 #define FM801_CAP_BUF2          0x1c    /* Capture Buffer II */
  90 #define FM801_CODEC_CTRL        0x22    /* Codec Control */
  91 #define FM801_I2S_MODE          0x24    /* I2S Mode Control */
  92 #define FM801_VOLUME            0x26    /* Volume Up/Down/Mute Status */
  93 #define FM801_I2C_CTRL          0x29    /* I2C Control */
  94 #define FM801_AC97_CMD          0x2a    /* AC'97 Command */
  95 #define FM801_AC97_DATA         0x2c    /* AC'97 Data */
  96 #define FM801_MPU401_DATA       0x30    /* MPU401 Data */
  97 #define FM801_MPU401_CMD        0x31    /* MPU401 Command */
  98 #define FM801_GPIO_CTRL         0x52    /* General Purpose I/O Control */
  99 #define FM801_GEN_CTRL          0x54    /* General Control */
 100 #define FM801_IRQ_MASK          0x56    /* Interrupt Mask */
 101 #define FM801_IRQ_STATUS        0x5a    /* Interrupt Status */
 102 #define FM801_OPL3_BANK0        0x68    /* OPL3 Status Read / Bank 0 Write */
 103 #define FM801_OPL3_DATA0        0x69    /* OPL3 Data 0 Write */
 104 #define FM801_OPL3_BANK1        0x6a    /* OPL3 Bank 1 Write */
 105 #define FM801_OPL3_DATA1        0x6b    /* OPL3 Bank 1 Write */
 106 #define FM801_POWERDOWN         0x70    /* Blocks Power Down Control */
 107
 108 /* codec access */
 109 #define FM801_AC97_READ         (1<<7)  /* read=1, write=0 */
 110 #define FM801_AC97_VALID        (1<<8)  /* port valid=1 */
 111 #define FM801_AC97_BUSY         (1<<9)  /* busy=1 */
 112 #define FM801_AC97_ADDR_SHIFT   10      /* codec id (2bit) */
 113
 114 /* playback and record control register bits */
 115 #define FM801_BUF1_LAST         (1<<1)
 116 #define FM801_BUF2_LAST         (1<<2)
 117 #define FM801_START             (1<<5)
 118 #define FM801_PAUSE             (1<<6)
 119 #define FM801_IMMED_STOP        (1<<7)
 120 #define FM801_RATE_SHIFT        8
 121 #define FM801_RATE_MASK         (15 << FM801_RATE_SHIFT)
 122 #define FM801_CHANNELS_4        (1<<12) /* playback only */
 123 #define FM801_CHANNELS_6        (2<<12) /* playback only */
 124 #define FM801_CHANNELS_6MS      (3<<12) /* playback only */
 125 #define FM801_CHANNELS_MASK     (3<<12)
 126 #define FM801_16BIT             (1<<14)
 127 #define FM801_STEREO            (1<<15)
 128
 129 /* IRQ status bits */
 130 #define FM801_IRQ_PLAYBACK      (1<<8)
 131 #define FM801_IRQ_CAPTURE       (1<<9)
 132 #define FM801_IRQ_VOLUME        (1<<14)
 133 #define FM801_IRQ_MPU           (1<<15)
 134
 135 /* GPIO control register */
 136 #define FM801_GPIO_GP0          (1<<0)  /* read/write */
 137 #define FM801_GPIO_GP1          (1<<1)
 138 #define FM801_GPIO_GP2          (1<<2)
 139 #define FM801_GPIO_GP3          (1<<3)
 140 #define FM801_GPIO_GP(x)        (1<<(0+(x)))
 141 #define FM801_GPIO_GD0          (1<<8)  /* directions: 1 = input, 0 = output*/
 142 #define FM801_GPIO_GD1          (1<<9)
 143 #define FM801_GPIO_GD2          (1<<10)
 144 #define FM801_GPIO_GD3          (1<<11)
 145 #define FM801_GPIO_GD(x)        (1<<(8+(x)))
 146 #define FM801_GPIO_GS0          (1<<12) /* function select: */
 147 #define FM801_GPIO_GS1          (1<<13) /*    1 = GPIO */
 148 #define FM801_GPIO_GS2          (1<<14) /*    0 = other (S/PDIF, VOL) */
 149 #define FM801_GPIO_GS3          (1<<15)
 150 #define FM801_GPIO_GS(x)        (1<<(12+(x)))
 151
 152 /*
 153
 154  */
 155
 156 struct fm801 {
 157         int irq;
 158
 159         unsigned long port;     /* I/O port number */
 160         unsigned int multichannel: 1,   /* multichannel support */
 161                      secondary: 1;      /* secondary codec */
 162         unsigned char secondary_addr;   /* address of the secondary codec */
 163
 164         unsigned short ply_ctrl; /* playback control */
 165         unsigned short cap_ctrl; /* capture control */
 166
 167         unsigned long ply_buffer;
 168         unsigned int ply_buf;
 169         unsigned int ply_count;
 170         unsigned int ply_size;
 171         unsigned int ply_pos;
 172
 173         unsigned long cap_buffer;
 174         unsigned int cap_buf;
 175         unsigned int cap_count;
 176         unsigned int cap_size;
 177         unsigned int cap_pos;
 178
 179         struct snd_ac97_bus *ac97_bus;
 180         struct snd_ac97 *ac97;
 181         struct snd_ac97 *ac97_sec;
 182
 183         struct pci_dev *pci;
 184         struct snd_card *card;
 185         struct snd_pcm *pcm;
 186         struct snd_rawmidi *rmidi;
 187         struct snd_pcm_substream *playback_substream;
 188         struct snd_pcm_substream *capture_substream;
 189         unsigned int p_dma_size;
 190         unsigned int c_dma_size;
 191
 192         spinlock_t reg_lock;
 193         struct snd_info_entry *proc_entry;
 194
 195 #ifdef TEA575X_RADIO
 196         struct snd_tea575x tea;
 197 #endif
 198
 199 #ifdef CONFIG_PM
 200         u16 saved_regs[0x20];
 201 #endif
 202 };
 203
 204 static struct pci_device_id snd_fm801_ids[] = {
 205         { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
 206         { 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
 207         { 0, }
 208 };
 209
 210 MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
 211
 212 /*
 213  *  common I/O routines
 214  */
 215
 216 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
 217                                  unsigned short mask, unsigned short value)
 218 {
 219         int change;
 220         unsigned long flags;
 221         unsigned short old, new;
 222
 223         spin_lock_irqsave(&chip->reg_lock, flags);
 224         old = inw(chip->port + reg);
 225         new = (old & ~mask) | value;
 226         change = old != new;
 227         if (change)
 228                 outw(new, chip->port + reg);
 229         spin_unlock_irqrestore(&chip->reg_lock, flags);
 230         return change;
 231 }
 232
 233 static void snd_fm801_codec_write(struct snd_ac97 *ac97,
 234                                   unsigned short reg,
 235                                   unsigned short val)
 236 {
 237         struct fm801 *chip = ac97->private_data;
 238         int idx;
 239
 240         /*
 241          *  Wait until the codec interface is not ready..
 242          */
 243         for (idx = 0; idx < 100; idx++) {
 244                 if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
 245                         goto ok1;
 246                 udelay(10);
 247         }
 248         snd_printk(KERN_ERR "AC'97 interface is busy (1)\n");
 249         return;
 250
 251  ok1:
 252         /* write data and address */
 253         outw(val, FM801_REG(chip, AC97_DATA));
 254         outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT), FM801_REG(chip, AC97_CMD));
 255         /*
 256          *  Wait until the write command is not completed..
 257          */
 258         for (idx = 0; idx < 1000; idx++) {
 259                 if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
 260                         return;
 261                 udelay(10);
 262         }
 263         snd_printk(KERN_ERR "AC'97 interface #%d is busy (2)\n", ac97->num);
 264 }
 265
 266 static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 267 {
 268         struct fm801 *chip = ac97->private_data;
 269         int idx;
 270
 271         /*
 272          *  Wait until the codec interface is not ready..
 273          */
 274         for (idx = 0; idx < 100; idx++) {
 275                 if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
 276                         goto ok1;
 277                 udelay(10);
 278         }
 279         snd_printk(KERN_ERR "AC'97 interface is busy (1)\n");
 280         return 0;
 281
 282  ok1:
 283         /* read command */
 284         outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ,
 285              FM801_REG(chip, AC97_CMD));
 286         for (idx = 0; idx < 100; idx++) {
 287                 if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
 288                         goto ok2;
 289                 udelay(10);
 290         }
 291         snd_printk(KERN_ERR "AC'97 interface #%d is busy (2)\n", ac97->num);
 292         return 0;
 293
 294  ok2:
 295         for (idx = 0; idx < 1000; idx++) {
 296                 if (inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_VALID)
 297                         goto ok3;
 298                 udelay(10);
 299         }
 300         snd_printk(KERN_ERR "AC'97 interface #%d is not valid (2)\n", ac97->num);
 301         return 0;
 302
 303  ok3:
 304         return inw(FM801_REG(chip, AC97_DATA));
 305 }
 306
 307 static unsigned int rates[] = {
 308   5500,  8000,  9600, 11025,
 309   16000, 19200, 22050, 32000,
 310   38400, 44100, 48000
 311 };
 312
 313 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
 314         .count = ARRAY_SIZE(rates),
 315         .list = rates,
 316         .mask = 0,
 317 };
 318
 319 static unsigned int channels[] = {
 320   2, 4, 6
 321 };
 322
 323 #define CHANNELS sizeof(channels) / sizeof(channels[0])
 324
 325 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
 326         .count = CHANNELS,
 327         .list = channels,
 328         .mask = 0,
 329 };
 330
 331 /*
 332  *  Sample rate routines
 333  */
 334
 335 static unsigned short snd_fm801_rate_bits(unsigned int rate)
 336 {
 337         unsigned int idx;
 338
 339         for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
 340                 if (rates[idx] == rate)
 341                         return idx;
 342         snd_BUG();
 343         return ARRAY_SIZE(rates) - 1;
 344 }
 345
 346 /*
 347  *  PCM part
 348  */
 349
 350 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
 351                                       int cmd)
 352 {
 353         struct fm801 *chip = snd_pcm_substream_chip(substream);
 354
 355         spin_lock(&chip->reg_lock);
 356         switch (cmd) {
 357         case SNDRV_PCM_TRIGGER_START:
 358                 chip->ply_ctrl &= ~(FM801_BUF1_LAST |
 359                                      FM801_BUF2_LAST |
 360                                      FM801_PAUSE);
 361                 chip->ply_ctrl |= FM801_START |
 362                                    FM801_IMMED_STOP;
 363                 break;
 364         case SNDRV_PCM_TRIGGER_STOP:
 365                 chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
 366                 break;
 367         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 368         case SNDRV_PCM_TRIGGER_SUSPEND:
 369                 chip->ply_ctrl |= FM801_PAUSE;
 370                 break;
 371         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 372         case SNDRV_PCM_TRIGGER_RESUME:
 373                 chip->ply_ctrl &= ~FM801_PAUSE;
 374                 break;
 375         default:
 376                 spin_unlock(&chip->reg_lock);
 377                 snd_BUG();
 378                 return -EINVAL;
 379         }
 380         outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
 381         spin_unlock(&chip->reg_lock);
 382         return 0;
 383 }
 384
 385 static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
 386                                      int cmd)
 387 {
 388         struct fm801 *chip = snd_pcm_substream_chip(substream);
 389
 390         spin_lock(&chip->reg_lock);
 391         switch (cmd) {
 392         case SNDRV_PCM_TRIGGER_START:
 393                 chip->cap_ctrl &= ~(FM801_BUF1_LAST |
 394                                      FM801_BUF2_LAST |
 395                                      FM801_PAUSE);
 396                 chip->cap_ctrl |= FM801_START |
 397                                    FM801_IMMED_STOP;
 398                 break;
 399         case SNDRV_PCM_TRIGGER_STOP:
 400                 chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
 401                 break;
 402         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 403         case SNDRV_PCM_TRIGGER_SUSPEND:
 404                 chip->cap_ctrl |= FM801_PAUSE;
 405                 break;
 406         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 407         case SNDRV_PCM_TRIGGER_RESUME:
 408                 chip->cap_ctrl &= ~FM801_PAUSE;
 409                 break;
 410         default:
 411                 spin_unlock(&chip->reg_lock);
 412                 snd_BUG();
 413                 return -EINVAL;
 414         }
 415         outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
 416         spin_unlock(&chip->reg_lock);
 417         return 0;
 418 }
 419
 420 static int snd_fm801_hw_params(struct snd_pcm_substream *substream,
 421                                struct snd_pcm_hw_params *hw_params)
 422 {
 423         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 424 }
 425
 426 static int snd_fm801_hw_free(struct snd_pcm_substream *substream)
 427 {
 428         return snd_pcm_lib_free_pages(substream);
 429 }
 430
 431 static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
 432 {
 433         struct fm801 *chip = snd_pcm_substream_chip(substream);
 434         struct snd_pcm_runtime *runtime = substream->runtime;
 435
 436         chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
 437         chip->ply_count = snd_pcm_lib_period_bytes(substream);
 438         spin_lock_irq(&chip->reg_lock);
 439         chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
 440                              FM801_STEREO | FM801_RATE_MASK |
 441                              FM801_CHANNELS_MASK);
 442         if (snd_pcm_format_width(runtime->format) == 16)
 443                 chip->ply_ctrl |= FM801_16BIT;
 444         if (runtime->channels > 1) {
 445                 chip->ply_ctrl |= FM801_STEREO;
 446                 if (runtime->channels == 4)
 447                         chip->ply_ctrl |= FM801_CHANNELS_4;
 448                 else if (runtime->channels == 6)
 449                         chip->ply_ctrl |= FM801_CHANNELS_6;
 450         }
 451         chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 452         chip->ply_buf = 0;
 453         outw(chip->ply_ctrl, FM801_REG(chip, PLY_CTRL));
 454         outw(chip->ply_count - 1, FM801_REG(chip, PLY_COUNT));
 455         chip->ply_buffer = runtime->dma_addr;
 456         chip->ply_pos = 0;
 457         outl(chip->ply_buffer, FM801_REG(chip, PLY_BUF1));
 458         outl(chip->ply_buffer + (chip->ply_count % chip->ply_size), FM801_REG(chip, PLY_BUF2));
 459         spin_unlock_irq(&chip->reg_lock);
 460         return 0;
 461 }
 462
 463 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
 464 {
 465         struct fm801 *chip = snd_pcm_substream_chip(substream);
 466         struct snd_pcm_runtime *runtime = substream->runtime;
 467
 468         chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
 469         chip->cap_count = snd_pcm_lib_period_bytes(substream);
 470         spin_lock_irq(&chip->reg_lock);
 471         chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
 472                              FM801_STEREO | FM801_RATE_MASK);
 473         if (snd_pcm_format_width(runtime->format) == 16)
 474                 chip->cap_ctrl |= FM801_16BIT;
 475         if (runtime->channels > 1)
 476                 chip->cap_ctrl |= FM801_STEREO;
 477         chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 478         chip->cap_buf = 0;
 479         outw(chip->cap_ctrl, FM801_REG(chip, CAP_CTRL));
 480         outw(chip->cap_count - 1, FM801_REG(chip, CAP_COUNT));
 481         chip->cap_buffer = runtime->dma_addr;
 482         chip->cap_pos = 0;
 483         outl(chip->cap_buffer, FM801_REG(chip, CAP_BUF1));
 484         outl(chip->cap_buffer + (chip->cap_count % chip->cap_size), FM801_REG(chip, CAP_BUF2));
 485         spin_unlock_irq(&chip->reg_lock);
 486         return 0;
 487 }
 488
 489 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
 490 {
 491         struct fm801 *chip = snd_pcm_substream_chip(substream);
 492         size_t ptr;
 493
 494         if (!(chip->ply_ctrl & FM801_START))
 495                 return 0;
 496         spin_lock(&chip->reg_lock);
 497         ptr = chip->ply_pos + (chip->ply_count - 1) - inw(FM801_REG(chip, PLY_COUNT));
 498         if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_PLAYBACK) {
 499                 ptr += chip->ply_count;
 500                 ptr %= chip->ply_size;
 501         }
 502         spin_unlock(&chip->reg_lock);
 503         return bytes_to_frames(substream->runtime, ptr);
 504 }
 505
 506 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
 507 {
 508         struct fm801 *chip = snd_pcm_substream_chip(substream);
 509         size_t ptr;
 510
 511         if (!(chip->cap_ctrl & FM801_START))
 512                 return 0;
 513         spin_lock(&chip->reg_lock);
 514         ptr = chip->cap_pos + (chip->cap_count - 1) - inw(FM801_REG(chip, CAP_COUNT));
 515         if (inw(FM801_REG(chip, IRQ_STATUS)) & FM801_IRQ_CAPTURE) {
 516                 ptr += chip->cap_count;
 517                 ptr %= chip->cap_size;
 518         }
 519         spin_unlock(&chip->reg_lock);
 520         return bytes_to_frames(substream->runtime, ptr);
 521 }
 522
 523 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 524 {
 525         struct fm801 *chip = dev_id;
 526         unsigned short status;
 527         unsigned int tmp;
 528
 529         status = inw(FM801_REG(chip, IRQ_STATUS));
 530         status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
 531         if (! status)
 532                 return IRQ_NONE;
 533         /* ack first */
 534         outw(status, FM801_REG(chip, IRQ_STATUS));
 535         if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
 536                 spin_lock(&chip->reg_lock);
 537                 chip->ply_buf++;
 538                 chip->ply_pos += chip->ply_count;
 539                 chip->ply_pos %= chip->ply_size;
 540                 tmp = chip->ply_pos + chip->ply_count;
 541                 tmp %= chip->ply_size;
 542                 outl(chip->ply_buffer + tmp,
 543                                 (chip->ply_buf & 1) ?
 544                                         FM801_REG(chip, PLY_BUF1) :
 545                                         FM801_REG(chip, PLY_BUF2));
 546                 spin_unlock(&chip->reg_lock);
 547                 snd_pcm_period_elapsed(chip->playback_substream);
 548         }
 549         if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
 550                 spin_lock(&chip->reg_lock);
 551                 chip->cap_buf++;
 552                 chip->cap_pos += chip->cap_count;
 553                 chip->cap_pos %= chip->cap_size;
 554                 tmp = chip->cap_pos + chip->cap_count;
 555                 tmp %= chip->cap_size;
 556                 outl(chip->cap_buffer + tmp,
 557                                 (chip->cap_buf & 1) ?
 558                                         FM801_REG(chip, CAP_BUF1) :
 559                                         FM801_REG(chip, CAP_BUF2));
 560                 spin_unlock(&chip->reg_lock);
 561                 snd_pcm_period_elapsed(chip->capture_substream);
 562         }
 563         if (chip->rmidi && (status & FM801_IRQ_MPU))
 564                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
 565         if (status & FM801_IRQ_VOLUME)
 566                 ;/* TODO */
 567
 568         return IRQ_HANDLED;
 569 }
 570
 571 static struct snd_pcm_hardware snd_fm801_playback =
 572 {
 573         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 574                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 575                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 576                                  SNDRV_PCM_INFO_MMAP_VALID),
 577         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 578         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 579         .rate_min =             5500,
 580         .rate_max =             48000,
 581         .channels_min =         1,
 582         .channels_max =         2,
 583         .buffer_bytes_max =     (128*1024),
 584         .period_bytes_min =     64,
 585         .period_bytes_max =     (128*1024),
 586         .periods_min =          1,
 587         .periods_max =          1024,
 588         .fifo_size =            0,
 589 };
 590
 591 static struct snd_pcm_hardware snd_fm801_capture =
 592 {
 593         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 594                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 595                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 596                                  SNDRV_PCM_INFO_MMAP_VALID),
 597         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 598         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 599         .rate_min =             5500,
 600         .rate_max =             48000,
 601         .channels_min =         1,
 602         .channels_max =         2,
 603         .buffer_bytes_max =     (128*1024),
 604         .period_bytes_min =     64,
 605         .period_bytes_max =     (128*1024),
 606         .periods_min =          1,
 607         .periods_max =          1024,
 608         .fifo_size =            0,
 609 };
 610
 611 static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
 612 {
 613         struct fm801 *chip = snd_pcm_substream_chip(substream);
 614         struct snd_pcm_runtime *runtime = substream->runtime;
 615         int err;
 616
 617         chip->playback_substream = substream;
 618         runtime->hw = snd_fm801_playback;
 619         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 620                                    &hw_constraints_rates);
 621         if (chip->multichannel) {
 622                 runtime->hw.channels_max = 6;
 623                 snd_pcm_hw_constraint_list(runtime, 0,
 624                                            SNDRV_PCM_HW_PARAM_CHANNELS,
 625                                            &hw_constraints_channels);
 626         }
 627         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 628                 return err;
 629         return 0;
 630 }
 631
 632 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
 633 {
 634         struct fm801 *chip = snd_pcm_substream_chip(substream);
 635         struct snd_pcm_runtime *runtime = substream->runtime;
 636         int err;
 637
 638         chip->capture_substream = substream;
 639         runtime->hw = snd_fm801_capture;
 640         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 641                                    &hw_constraints_rates);
 642         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 643                 return err;
 644         return 0;
 645 }
 646
 647 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
 648 {
 649         struct fm801 *chip = snd_pcm_substream_chip(substream);
 650
 651         chip->playback_substream = NULL;
 652         return 0;
 653 }
 654
 655 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
 656 {
 657         struct fm801 *chip = snd_pcm_substream_chip(substream);
 658
 659         chip->capture_substream = NULL;
 660         return 0;
 661 }
 662
 663 static struct snd_pcm_ops snd_fm801_playback_ops = {
 664         .open =         snd_fm801_playback_open,
 665         .close =        snd_fm801_playback_close,
 666         .ioctl =        snd_pcm_lib_ioctl,
 667         .hw_params =    snd_fm801_hw_params,
 668         .hw_free =      snd_fm801_hw_free,
 669         .prepare =      snd_fm801_playback_prepare,
 670         .trigger =      snd_fm801_playback_trigger,
 671         .pointer =      snd_fm801_playback_pointer,
 672 };
 673
 674 static struct snd_pcm_ops snd_fm801_capture_ops = {
 675         .open =         snd_fm801_capture_open,
 676         .close =        snd_fm801_capture_close,
 677         .ioctl =        snd_pcm_lib_ioctl,
 678         .hw_params =    snd_fm801_hw_params,
 679         .hw_free =      snd_fm801_hw_free,
 680         .prepare =      snd_fm801_capture_prepare,
 681         .trigger =      snd_fm801_capture_trigger,
 682         .pointer =      snd_fm801_capture_pointer,
 683 };
 684
 685 static int __devinit snd_fm801_pcm(struct fm801 *chip, int device, struct snd_pcm ** rpcm)
 686 {
 687         struct snd_pcm *pcm;
 688         int err;
 689
 690         if (rpcm)
 691                 *rpcm = NULL;
 692         if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
 693                 return err;
 694
 695         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
 696         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
 697
 698         pcm->private_data = chip;
 699         pcm->info_flags = 0;
 700         strcpy(pcm->name, "FM801");
 701         chip->pcm = pcm;
 702
 703         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 704                                               snd_dma_pci_data(chip->pci),
 705                                               chip->multichannel ? 128*1024 : 64*1024, 128*1024);
 706
 707         if (rpcm)
 708                 *rpcm = pcm;
 709         return 0;
 710 }
 711
 712 /*
 713  *  TEA5757 radio
 714  */
 715
 716 #ifdef TEA575X_RADIO
 717
 718 /* 256PCS GPIO numbers */
 719 #define TEA_256PCS_DATA                 1
 720 #define TEA_256PCS_WRITE_ENABLE         2       /* inverted */
 721 #define TEA_256PCS_BUS_CLOCK            3
 722
 723 static void snd_fm801_tea575x_256pcs_write(struct snd_tea575x *tea, unsigned int val)
 724 {
 725         struct fm801 *chip = tea->private_data;
 726         unsigned short reg;
 727         int i = 25;
 728
 729         spin_lock_irq(&chip->reg_lock);
 730         reg = inw(FM801_REG(chip, GPIO_CTRL));
 731         /* use GPIO lines and set write enable bit */
 732         reg |= FM801_GPIO_GS(TEA_256PCS_DATA) |
 733                FM801_GPIO_GS(TEA_256PCS_WRITE_ENABLE) |
 734                FM801_GPIO_GS(TEA_256PCS_BUS_CLOCK);
 735         /* all of lines are in the write direction */
 736         /* clear data and clock lines */
 737         reg &= ~(FM801_GPIO_GD(TEA_256PCS_DATA) |
 738                  FM801_GPIO_GD(TEA_256PCS_WRITE_ENABLE) |
 739                  FM801_GPIO_GD(TEA_256PCS_BUS_CLOCK) |
 740                  FM801_GPIO_GP(TEA_256PCS_DATA) |
 741                  FM801_GPIO_GP(TEA_256PCS_BUS_CLOCK) |
 742                  FM801_GPIO_GP(TEA_256PCS_WRITE_ENABLE));
 743         outw(reg, FM801_REG(chip, GPIO_CTRL));
 744         udelay(1);
 745
 746         while (i--) {
 747                 if (val & (1 << i))
 748                         reg |= FM801_GPIO_GP(TEA_256PCS_DATA);
 749                 else
 750                         reg &= ~FM801_GPIO_GP(TEA_256PCS_DATA);
 751                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 752                 udelay(1);
 753                 reg |= FM801_GPIO_GP(TEA_256PCS_BUS_CLOCK);
 754                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 755                 reg &= ~FM801_GPIO_GP(TEA_256PCS_BUS_CLOCK);
 756                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 757                 udelay(1);
 758         }
 759
 760         /* and reset the write enable bit */
 761         reg |= FM801_GPIO_GP(TEA_256PCS_WRITE_ENABLE) |
 762                FM801_GPIO_GP(TEA_256PCS_DATA);
 763         outw(reg, FM801_REG(chip, GPIO_CTRL));
 764         spin_unlock_irq(&chip->reg_lock);
 765 }
 766
 767 static unsigned int snd_fm801_tea575x_256pcs_read(struct snd_tea575x *tea)
 768 {
 769         struct fm801 *chip = tea->private_data;
 770         unsigned short reg;
 771         unsigned int val = 0;
 772         int i;
 773
 774         spin_lock_irq(&chip->reg_lock);
 775         reg = inw(FM801_REG(chip, GPIO_CTRL));
 776         /* use GPIO lines, set data direction to input */
 777         reg |= FM801_GPIO_GS(TEA_256PCS_DATA) |
 778                FM801_GPIO_GS(TEA_256PCS_WRITE_ENABLE) |
 779                FM801_GPIO_GS(TEA_256PCS_BUS_CLOCK) |
 780                FM801_GPIO_GD(TEA_256PCS_DATA) |
 781                FM801_GPIO_GP(TEA_256PCS_DATA) |
 782                FM801_GPIO_GP(TEA_256PCS_WRITE_ENABLE);
 783         /* all of lines are in the write direction, except data */
 784         /* clear data, write enable and clock lines */
 785         reg &= ~(FM801_GPIO_GD(TEA_256PCS_WRITE_ENABLE) |
 786                  FM801_GPIO_GD(TEA_256PCS_BUS_CLOCK) |
 787                  FM801_GPIO_GP(TEA_256PCS_BUS_CLOCK));
 788
 789         for (i = 0; i < 24; i++) {
 790                 reg &= ~FM801_GPIO_GP(TEA_256PCS_BUS_CLOCK);
 791                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 792                 udelay(1);
 793                 reg |= FM801_GPIO_GP(TEA_256PCS_BUS_CLOCK);
 794                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 795                 udelay(1);
 796                 val <<= 1;
 797                 if (inw(FM801_REG(chip, GPIO_CTRL)) & FM801_GPIO_GP(TEA_256PCS_DATA))
 798                         val |= 1;
 799         }
 800
 801         spin_unlock_irq(&chip->reg_lock);
 802
 803         return val;
 804 }
 805
 806 /* 256PCPR GPIO numbers */
 807 #define TEA_256PCPR_BUS_CLOCK           0
 808 #define TEA_256PCPR_DATA                1
 809 #define TEA_256PCPR_WRITE_ENABLE        2       /* inverted */
 810
 811 static void snd_fm801_tea575x_256pcpr_write(struct snd_tea575x *tea, unsigned int val)
 812 {
 813         struct fm801 *chip = tea->private_data;
 814         unsigned short reg;
 815         int i = 25;
 816
 817         spin_lock_irq(&chip->reg_lock);
 818         reg = inw(FM801_REG(chip, GPIO_CTRL));
 819         /* use GPIO lines and set write enable bit */
 820         reg |= FM801_GPIO_GS(TEA_256PCPR_DATA) |
 821                FM801_GPIO_GS(TEA_256PCPR_WRITE_ENABLE) |
 822                FM801_GPIO_GS(TEA_256PCPR_BUS_CLOCK);
 823         /* all of lines are in the write direction */
 824         /* clear data and clock lines */
 825         reg &= ~(FM801_GPIO_GD(TEA_256PCPR_DATA) |
 826                  FM801_GPIO_GD(TEA_256PCPR_WRITE_ENABLE) |
 827                  FM801_GPIO_GD(TEA_256PCPR_BUS_CLOCK) |
 828                  FM801_GPIO_GP(TEA_256PCPR_DATA) |
 829                  FM801_GPIO_GP(TEA_256PCPR_BUS_CLOCK) |
 830                  FM801_GPIO_GP(TEA_256PCPR_WRITE_ENABLE));
 831         outw(reg, FM801_REG(chip, GPIO_CTRL));
 832         udelay(1);
 833
 834         while (i--) {
 835                 if (val & (1 << i))
 836                         reg |= FM801_GPIO_GP(TEA_256PCPR_DATA);
 837                 else
 838                         reg &= ~FM801_GPIO_GP(TEA_256PCPR_DATA);
 839                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 840                 udelay(1);
 841                 reg |= FM801_GPIO_GP(TEA_256PCPR_BUS_CLOCK);
 842                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 843                 reg &= ~FM801_GPIO_GP(TEA_256PCPR_BUS_CLOCK);
 844                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 845                 udelay(1);
 846         }
 847
 848         /* and reset the write enable bit */
 849         reg |= FM801_GPIO_GP(TEA_256PCPR_WRITE_ENABLE) |
 850                FM801_GPIO_GP(TEA_256PCPR_DATA);
 851         outw(reg, FM801_REG(chip, GPIO_CTRL));
 852         spin_unlock_irq(&chip->reg_lock);
 853 }
 854
 855 static unsigned int snd_fm801_tea575x_256pcpr_read(struct snd_tea575x *tea)
 856 {
 857         struct fm801 *chip = tea->private_data;
 858         unsigned short reg;
 859         unsigned int val = 0;
 860         int i;
 861
 862         spin_lock_irq(&chip->reg_lock);
 863         reg = inw(FM801_REG(chip, GPIO_CTRL));
 864         /* use GPIO lines, set data direction to input */
 865         reg |= FM801_GPIO_GS(TEA_256PCPR_DATA) |
 866                FM801_GPIO_GS(TEA_256PCPR_WRITE_ENABLE) |
 867                FM801_GPIO_GS(TEA_256PCPR_BUS_CLOCK) |
 868                FM801_GPIO_GD(TEA_256PCPR_DATA) |
 869                FM801_GPIO_GP(TEA_256PCPR_DATA) |
 870                FM801_GPIO_GP(TEA_256PCPR_WRITE_ENABLE);
 871         /* all of lines are in the write direction, except data */
 872         /* clear data, write enable and clock lines */
 873         reg &= ~(FM801_GPIO_GD(TEA_256PCPR_WRITE_ENABLE) |
 874                  FM801_GPIO_GD(TEA_256PCPR_BUS_CLOCK) |
 875                  FM801_GPIO_GP(TEA_256PCPR_BUS_CLOCK));
 876
 877         for (i = 0; i < 24; i++) {
 878                 reg &= ~FM801_GPIO_GP(TEA_256PCPR_BUS_CLOCK);
 879                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 880                 udelay(1);
 881                 reg |= FM801_GPIO_GP(TEA_256PCPR_BUS_CLOCK);
 882                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 883                 udelay(1);
 884                 val <<= 1;
 885                 if (inw(FM801_REG(chip, GPIO_CTRL)) & FM801_GPIO_GP(TEA_256PCPR_DATA))
 886                         val |= 1;
 887         }
 888
 889         spin_unlock_irq(&chip->reg_lock);
 890
 891         return val;
 892 }
 893
 894 /* 64PCR GPIO numbers */
 895 #define TEA_64PCR_BUS_CLOCK             0
 896 #define TEA_64PCR_WRITE_ENABLE          1       /* inverted */
 897 #define TEA_64PCR_DATA                  2
 898
 899 static void snd_fm801_tea575x_64pcr_write(struct snd_tea575x *tea, unsigned int val)
 900 {
 901         struct fm801 *chip = tea->private_data;
 902         unsigned short reg;
 903         int i = 25;
 904
 905         spin_lock_irq(&chip->reg_lock);
 906         reg = inw(FM801_REG(chip, GPIO_CTRL));
 907         /* use GPIO lines and set write enable bit */
 908         reg |= FM801_GPIO_GS(TEA_64PCR_DATA) |
 909                FM801_GPIO_GS(TEA_64PCR_WRITE_ENABLE) |
 910                FM801_GPIO_GS(TEA_64PCR_BUS_CLOCK);
 911         /* all of lines are in the write direction */
 912         /* clear data and clock lines */
 913         reg &= ~(FM801_GPIO_GD(TEA_64PCR_DATA) |
 914                  FM801_GPIO_GD(TEA_64PCR_WRITE_ENABLE) |
 915                  FM801_GPIO_GD(TEA_64PCR_BUS_CLOCK) |
 916                  FM801_GPIO_GP(TEA_64PCR_DATA) |
 917                  FM801_GPIO_GP(TEA_64PCR_BUS_CLOCK) |
 918                  FM801_GPIO_GP(TEA_64PCR_WRITE_ENABLE));
 919         outw(reg, FM801_REG(chip, GPIO_CTRL));
 920         udelay(1);
 921
 922         while (i--) {
 923                 if (val & (1 << i))
 924                         reg |= FM801_GPIO_GP(TEA_64PCR_DATA);
 925                 else
 926                         reg &= ~FM801_GPIO_GP(TEA_64PCR_DATA);
 927                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 928                 udelay(1);
 929                 reg |= FM801_GPIO_GP(TEA_64PCR_BUS_CLOCK);
 930                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 931                 reg &= ~FM801_GPIO_GP(TEA_64PCR_BUS_CLOCK);
 932                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 933                 udelay(1);
 934         }
 935
 936         /* and reset the write enable bit */
 937         reg |= FM801_GPIO_GP(TEA_64PCR_WRITE_ENABLE) |
 938                FM801_GPIO_GP(TEA_64PCR_DATA);
 939         outw(reg, FM801_REG(chip, GPIO_CTRL));
 940         spin_unlock_irq(&chip->reg_lock);
 941 }
 942
 943 static unsigned int snd_fm801_tea575x_64pcr_read(struct snd_tea575x *tea)
 944 {
 945         struct fm801 *chip = tea->private_data;
 946         unsigned short reg;
 947         unsigned int val = 0;
 948         int i;
 949
 950         spin_lock_irq(&chip->reg_lock);
 951         reg = inw(FM801_REG(chip, GPIO_CTRL));
 952         /* use GPIO lines, set data direction to input */
 953         reg |= FM801_GPIO_GS(TEA_64PCR_DATA) |
 954                FM801_GPIO_GS(TEA_64PCR_WRITE_ENABLE) |
 955                FM801_GPIO_GS(TEA_64PCR_BUS_CLOCK) |
 956                FM801_GPIO_GD(TEA_64PCR_DATA) |
 957                FM801_GPIO_GP(TEA_64PCR_DATA) |
 958                FM801_GPIO_GP(TEA_64PCR_WRITE_ENABLE);
 959         /* all of lines are in the write direction, except data */
 960         /* clear data, write enable and clock lines */
 961         reg &= ~(FM801_GPIO_GD(TEA_64PCR_WRITE_ENABLE) |
 962                  FM801_GPIO_GD(TEA_64PCR_BUS_CLOCK) |
 963                  FM801_GPIO_GP(TEA_64PCR_BUS_CLOCK));
 964
 965         for (i = 0; i < 24; i++) {
 966                 reg &= ~FM801_GPIO_GP(TEA_64PCR_BUS_CLOCK);
 967                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 968                 udelay(1);
 969                 reg |= FM801_GPIO_GP(TEA_64PCR_BUS_CLOCK);
 970                 outw(reg, FM801_REG(chip, GPIO_CTRL));
 971                 udelay(1);
 972                 val <<= 1;
 973                 if (inw(FM801_REG(chip, GPIO_CTRL)) & FM801_GPIO_GP(TEA_64PCR_DATA))
 974                         val |= 1;
 975         }
 976
 977         spin_unlock_irq(&chip->reg_lock);
 978
 979         return val;
 980 }
 981
 982 static struct snd_tea575x_ops snd_fm801_tea_ops[3] = {
 983         {
 984                 /* 1 = MediaForte 256-PCS */
 985                 .write = snd_fm801_tea575x_256pcs_write,
 986                 .read = snd_fm801_tea575x_256pcs_read,
 987         },
 988         {
 989                 /* 2 = MediaForte 256-PCPR */
 990                 .write = snd_fm801_tea575x_256pcpr_write,
 991                 .read = snd_fm801_tea575x_256pcpr_read,
 992         },
 993         {
 994                 /* 3 = MediaForte 64-PCR */
 995                 .write = snd_fm801_tea575x_64pcr_write,
 996                 .read = snd_fm801_tea575x_64pcr_read,
 997         }
 998 };
 999 #endif
1000
1001 /*
1002  *  Mixer routines
1003  */
1004
1005 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
1006 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
1007   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
1008   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1009
1010 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
1011                                  struct snd_ctl_elem_info *uinfo)
1012 {
1013         int mask = (kcontrol->private_value >> 16) & 0xff;
1014
1015         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1016         uinfo->count = 1;
1017         uinfo->value.integer.min = 0;
1018         uinfo->value.integer.max = mask;
1019         return 0;
1020 }
1021
1022 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
1023                                 struct snd_ctl_elem_value *ucontrol)
1024 {
1025         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
1026         int reg = kcontrol->private_value & 0xff;
1027         int shift = (kcontrol->private_value >> 8) & 0xff;
1028         int mask = (kcontrol->private_value >> 16) & 0xff;
1029         int invert = (kcontrol->private_value >> 24) & 0xff;
1030
1031         ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift) & mask;
1032         if (invert)
1033                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1034         return 0;
1035 }
1036
1037 static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
1038                                 struct snd_ctl_elem_value *ucontrol)
1039 {
1040         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
1041         int reg = kcontrol->private_value & 0xff;
1042         int shift = (kcontrol->private_value >> 8) & 0xff;
1043         int mask = (kcontrol->private_value >> 16) & 0xff;
1044         int invert = (kcontrol->private_value >> 24) & 0xff;
1045         unsigned short val;
1046
1047         val = (ucontrol->value.integer.value[0] & mask);
1048         if (invert)
1049                 val = mask - val;
1050         return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
1051 }
1052
1053 #define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
1054 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
1055   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
1056   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
1057
1058 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
1059                                  struct snd_ctl_elem_info *uinfo)
1060 {
1061         int mask = (kcontrol->private_value >> 16) & 0xff;
1062
1063         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1064         uinfo->count = 2;
1065         uinfo->value.integer.min = 0;
1066         uinfo->value.integer.max = mask;
1067         return 0;
1068 }
1069
1070 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
1071                                 struct snd_ctl_elem_value *ucontrol)
1072 {
1073         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
1074         int reg = kcontrol->private_value & 0xff;
1075         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
1076         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
1077         int mask = (kcontrol->private_value >> 16) & 0xff;
1078         int invert = (kcontrol->private_value >> 24) & 0xff;
1079
1080         spin_lock_irq(&chip->reg_lock);
1081         ucontrol->value.integer.value[0] = (inw(chip->port + reg) >> shift_left) & mask;
1082         ucontrol->value.integer.value[1] = (inw(chip->port + reg) >> shift_right) & mask;
1083         spin_unlock_irq(&chip->reg_lock);
1084         if (invert) {
1085                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1086                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1087         }
1088         return 0;
1089 }
1090
1091 static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
1092                                 struct snd_ctl_elem_value *ucontrol)
1093 {
1094         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
1095         int reg = kcontrol->private_value & 0xff;
1096         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
1097         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
1098         int mask = (kcontrol->private_value >> 16) & 0xff;
1099         int invert = (kcontrol->private_value >> 24) & 0xff;
1100         unsigned short val1, val2;
1101
1102         val1 = ucontrol->value.integer.value[0] & mask;
1103         val2 = ucontrol->value.integer.value[1] & mask;
1104         if (invert) {
1105                 val1 = mask - val1;
1106                 val2 = mask - val2;
1107         }
1108         return snd_fm801_update_bits(chip, reg,
1109                                      (mask << shift_left) | (mask << shift_right),
1110                                      (val1 << shift_left ) | (val2 << shift_right));
1111 }
1112
1113 static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
1114                               struct snd_ctl_elem_info *uinfo)
1115 {
1116         static char *texts[5] = {
1117                 "AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
1118         };
1119
1120         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1121         uinfo->count = 1;
1122         uinfo->value.enumerated.items = 5;
1123         if (uinfo->value.enumerated.item > 4)
1124                 uinfo->value.enumerated.item = 4;
1125         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1126         return 0;
1127 }
1128
1129 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
1130                              struct snd_ctl_elem_value *ucontrol)
1131 {
1132         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
1133         unsigned short val;
1134
1135         val = inw(FM801_REG(chip, REC_SRC)) & 7;
1136         if (val > 4)
1137                 val = 4;
1138         ucontrol->value.enumerated.item[0] = val;
1139         return 0;
1140 }
1141
1142 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
1143                              struct snd_ctl_elem_value *ucontrol)
1144 {
1145         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
1146         unsigned short val;
1147
1148         if ((val = ucontrol->value.enumerated.item[0]) > 4)
1149                 return -EINVAL;
1150         return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
1151 }
1152
1153 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
1154
1155 static struct snd_kcontrol_new snd_fm801_controls[] __devinitdata = {
1156 FM801_DOUBLE("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1),
1157 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
1158 FM801_DOUBLE("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1),
1159 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
1160 FM801_DOUBLE("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1),
1161 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
1162 {
1163         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1164         .name = "Digital Capture Source",
1165         .info = snd_fm801_info_mux,
1166         .get = snd_fm801_get_mux,
1167         .put = snd_fm801_put_mux,
1168 }
1169 };
1170
1171 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
1172
1173 static struct snd_kcontrol_new snd_fm801_controls_multi[] __devinitdata = {
1174 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
1175 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
1176 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
1177 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
1178 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
1179 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1180 };
1181
1182 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1183 {
1184         struct fm801 *chip = bus->private_data;
1185         chip->ac97_bus = NULL;
1186 }
1187
1188 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1189 {
1190         struct fm801 *chip = ac97->private_data;
1191         if (ac97->num == 0) {
1192                 chip->ac97 = NULL;
1193         } else {
1194                 chip->ac97_sec = NULL;
1195         }
1196 }
1197
1198 static int __devinit snd_fm801_mixer(struct fm801 *chip)
1199 {
1200         struct snd_ac97_template ac97;
1201         unsigned int i;
1202         int err;
1203         static struct snd_ac97_bus_ops ops = {
1204                 .write = snd_fm801_codec_write,
1205                 .read = snd_fm801_codec_read,
1206         };
1207
1208         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1209                 return err;
1210         chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1211
1212         memset(&ac97, 0, sizeof(ac97));
1213         ac97.private_data = chip;
1214         ac97.private_free = snd_fm801_mixer_free_ac97;
1215         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1216                 return err;
1217         if (chip->secondary) {
1218                 ac97.num = 1;
1219                 ac97.addr = chip->secondary_addr;
1220                 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1221                         return err;
1222         }
1223         for (i = 0; i < FM801_CONTROLS; i++)
1224                 snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls[i], chip));
1225         if (chip->multichannel) {
1226                 for (i = 0; i < FM801_CONTROLS_MULTI; i++)
1227                         snd_ctl_add(chip->card, snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1228         }
1229         return 0;
1230 }
1231
1232 /*
1233  *  initialization routines
1234  */
1235
1236 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1237                           unsigned short reg, unsigned long waits)
1238 {
1239         unsigned long timeout = jiffies + waits;
1240
1241         outw(FM801_AC97_READ | (codec_id << FM801_AC97_ADDR_SHIFT) | reg,
1242              FM801_REG(chip, AC97_CMD));
1243         udelay(5);
1244         do {
1245                 if ((inw(FM801_REG(chip, AC97_CMD)) & (FM801_AC97_VALID|FM801_AC97_BUSY))
1246                     == FM801_AC97_VALID)
1247                         return 0;
1248                 schedule_timeout_uninterruptible(1);
1249         } while (time_after(timeout, jiffies));
1250         return -EIO;
1251 }
1252
1253 static int snd_fm801_chip_init(struct fm801 *chip, int resume)
1254 {
1255         int id;
1256         unsigned short cmdw;
1257
1258         if (tea575x_tuner & 0x0010)
1259                 goto __ac97_ok;
1260
1261         /* codec cold reset + AC'97 warm reset */
1262         outw((1<<5) | (1<<6), FM801_REG(chip, CODEC_CTRL));
1263         inw(FM801_REG(chip, CODEC_CTRL)); /* flush posting data */
1264         udelay(100);
1265         outw(0, FM801_REG(chip, CODEC_CTRL));
1266
1267         if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0) {
1268                 snd_printk(KERN_ERR "Primary AC'97 codec not found\n");
1269                 if (! resume)
1270                         return -EIO;
1271         }
1272
1273         if (chip->multichannel) {
1274                 if (chip->secondary_addr) {
1275                         wait_for_codec(chip, chip->secondary_addr,
1276                                        AC97_VENDOR_ID1, msecs_to_jiffies(50));
1277                 } else {
1278                         /* my card has the secondary codec */
1279                         /* at address #3, so the loop is inverted */
1280                         for (id = 3; id > 0; id--) {
1281                                 if (! wait_for_codec(chip, id, AC97_VENDOR_ID1,
1282                                                      msecs_to_jiffies(50))) {
1283                                         cmdw = inw(FM801_REG(chip, AC97_DATA));
1284                                         if (cmdw != 0xffff && cmdw != 0) {
1285                                                 chip->secondary = 1;
1286                                                 chip->secondary_addr = id;
1287                                                 break;
1288                                         }
1289                                 }
1290                         }
1291                 }
1292
1293                 /* the recovery phase, it seems that probing for non-existing codec might */
1294                 /* cause timeout problems */
1295                 wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1296         }
1297
1298         /* init volume */
1299         outw(0x0808, FM801_REG(chip, PCM_VOL));
1300         outw(0x9f1f, FM801_REG(chip, FM_VOL));
1301         outw(0x8808, FM801_REG(chip, I2S_VOL));
1302
1303         /* I2S control - I2S mode */
1304         outw(0x0003, FM801_REG(chip, I2S_MODE));
1305
1306         /* interrupt setup - unmask MPU, PLAYBACK & CAPTURE */
1307         cmdw = inw(FM801_REG(chip, IRQ_MASK));
1308         cmdw &= ~0x0083;
1309         outw(cmdw, FM801_REG(chip, IRQ_MASK));
1310
1311         /* interrupt clear */
1312         outw(FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU, FM801_REG(chip, IRQ_STATUS));
1313
1314         return 0;
1315 }
1316
1317
1318 static int snd_fm801_free(struct fm801 *chip)
1319 {
1320         unsigned short cmdw;
1321
1322         if (chip->irq < 0)
1323                 goto __end_hw;
1324
1325         /* interrupt setup - mask everything */
1326         cmdw = inw(FM801_REG(chip, IRQ_MASK));
1327         cmdw |= 0x00c3;
1328         outw(cmdw, FM801_REG(chip, IRQ_MASK));
1329
1330       __end_hw:
1331 #ifdef TEA575X_RADIO
1332         snd_tea575x_exit(&chip->tea);
1333 #endif
1334         if (chip->irq >= 0)
1335                 free_irq(chip->irq, chip);
1336         pci_release_regions(chip->pci);
1337         pci_disable_device(chip->pci);
1338
1339         kfree(chip);
1340         return 0;
1341 }
1342
1343 static int snd_fm801_dev_free(struct snd_device *device)
1344 {
1345         struct fm801 *chip = device->device_data;
1346         return snd_fm801_free(chip);
1347 }
1348
1349 static int __devinit snd_fm801_create(struct snd_card *card,
1350                                       struct pci_dev * pci,
1351                                       int tea575x_tuner,
1352                                       struct fm801 ** rchip)
1353 {
1354         struct fm801 *chip;
1355         unsigned char rev;
1356         int err;
1357         static struct snd_device_ops ops = {
1358                 .dev_free =     snd_fm801_dev_free,
1359         };
1360
1361         *rchip = NULL;
1362         if ((err = pci_enable_device(pci)) < 0)
1363                 return err;
1364         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1365         if (chip == NULL) {
1366                 pci_disable_device(pci);
1367                 return -ENOMEM;
1368         }
1369         spin_lock_init(&chip->reg_lock);
1370         chip->card = card;
1371         chip->pci = pci;
1372         chip->irq = -1;
1373         if ((err = pci_request_regions(pci, "FM801")) < 0) {
1374                 kfree(chip);
1375                 pci_disable_device(pci);
1376                 return err;
1377         }
1378         chip->port = pci_resource_start(pci, 0);
1379         if (request_irq(pci->irq, snd_fm801_interrupt, IRQF_DISABLED|IRQF_SHARED,
1380                         "FM801", chip)) {
1381                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->irq);
1382                 snd_fm801_free(chip);
1383                 return -EBUSY;
1384         }
1385         chip->irq = pci->irq;
1386         pci_set_master(pci);
1387
1388         pci_read_config_byte(pci, PCI_REVISION_ID, &rev);
1389         if (rev >= 0xb1)        /* FM801-AU */
1390                 chip->multichannel = 1;
1391
1392         snd_fm801_chip_init(chip, 0);
1393
1394         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1395                 snd_fm801_free(chip);
1396                 return err;
1397         }
1398
1399         snd_card_set_dev(card, &pci->dev);
1400
1401 #ifdef TEA575X_RADIO
1402         if (tea575x_tuner > 0 && (tea575x_tuner & 0x000f) < 4) {
1403                 chip->tea.dev_nr = tea575x_tuner >> 16;
1404                 chip->tea.card = card;
1405                 chip->tea.freq_fixup = 10700;
1406                 chip->tea.private_data = chip;
1407                 chip->tea.ops = &snd_fm801_tea_ops[(tea575x_tuner & 0x000f) - 1];
1408                 snd_tea575x_init(&chip->tea);
1409
1410                 /* Mute FM tuner */
1411                 outw(0xf800, FM801_REG(chip, GPIO_CTRL));
1412         }
1413 #endif
1414
1415         *rchip = chip;
1416         return 0;
1417 }
1418
1419 static int __devinit snd_card_fm801_probe(struct pci_dev *pci,
1420                                           const struct pci_device_id *pci_id)
1421 {
1422         static int dev;
1423         struct snd_card *card;
1424         struct fm801 *chip;
1425         struct snd_opl3 *opl3;
1426         int err;
1427
1428         if (dev >= SNDRV_CARDS)
1429                 return -ENODEV;
1430         if (!enable[dev]) {
1431                 dev++;
1432                 return -ENOENT;
1433         }
1434
1435         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1436         if (card == NULL)
1437                 return -ENOMEM;
1438         if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], &chip)) < 0) {
1439                 snd_card_free(card);
1440                 return err;
1441         }
1442         card->private_data = chip;
1443
1444         strcpy(card->driver, "FM801");
1445         strcpy(card->shortname, "ForteMedia FM801-");
1446         strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1447         sprintf(card->longname, "%s at 0x%lx, irq %i",
1448                 card->shortname, chip->port, chip->irq);
1449
1450         if (tea575x_tuner[dev] & 0x0010)
1451                 goto __fm801_tuner_only;
1452
1453         if ((err = snd_fm801_pcm(chip, 0, NULL)) < 0) {
1454                 snd_card_free(card);
1455                 return err;
1456         }
1457         if ((err = snd_fm801_mixer(chip)) < 0) {
1458                 snd_card_free(card);
1459                 return err;
1460         }
1461         if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1462                                        FM801_REG(chip, MPU401_DATA),
1463                                        MPU401_INFO_INTEGRATED,
1464                                        chip->irq, 0, &chip->rmidi)) < 0) {
1465                 snd_card_free(card);
1466                 return err;
1467         }
1468         if ((err = snd_opl3_create(card, FM801_REG(chip, OPL3_BANK0),
1469                                    FM801_REG(chip, OPL3_BANK1),
1470                                    OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1471                 snd_card_free(card);
1472                 return err;
1473         }
1474         if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1475                 snd_card_free(card);
1476                 return err;
1477         }
1478
1479       __fm801_tuner_only:
1480         if ((err = snd_card_register(card)) < 0) {
1481                 snd_card_free(card);
1482                 return err;
1483         }
1484         pci_set_drvdata(pci, card);
1485         dev++;
1486         return 0;
1487 }
1488
1489 static void __devexit snd_card_fm801_remove(struct pci_dev *pci)
1490 {
1491         snd_card_free(pci_get_drvdata(pci));
1492         pci_set_drvdata(pci, NULL);
1493 }
1494
1495 #ifdef CONFIG_PM
1496 static unsigned char saved_regs[] = {
1497         FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1498         FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1499         FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1500         FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1501 };
1502
1503 static int snd_fm801_suspend(struct pci_dev *pci, pm_message_t state)
1504 {
1505         struct snd_card *card = pci_get_drvdata(pci);
1506         struct fm801 *chip = card->private_data;
1507         int i;
1508
1509         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1510         snd_pcm_suspend_all(chip->pcm);
1511         snd_ac97_suspend(chip->ac97);
1512         snd_ac97_suspend(chip->ac97_sec);
1513         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1514                 chip->saved_regs[i] = inw(chip->port + saved_regs[i]);
1515         /* FIXME: tea575x suspend */
1516
1517         pci_set_power_state(pci, PCI_D3hot);
1518         pci_disable_device(pci);
1519         pci_save_state(pci);
1520         return 0;
1521 }
1522
1523 static int snd_fm801_resume(struct pci_dev *pci)
1524 {
1525         struct snd_card *card = pci_get_drvdata(pci);
1526         struct fm801 *chip = card->private_data;
1527         int i;
1528
1529         pci_restore_state(pci);
1530         pci_enable_device(pci);
1531         pci_set_power_state(pci, PCI_D0);
1532         pci_set_master(pci);
1533
1534         snd_fm801_chip_init(chip, 1);
1535         snd_ac97_resume(chip->ac97);
1536         snd_ac97_resume(chip->ac97_sec);
1537         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1538                 outw(chip->saved_regs[i], chip->port + saved_regs[i]);
1539
1540         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1541         return 0;
1542 }
1543 #endif
1544
1545 static struct pci_driver driver = {
1546         .name = "FM801",
1547         .id_table = snd_fm801_ids,
1548         .probe = snd_card_fm801_probe,
1549         .remove = __devexit_p(snd_card_fm801_remove),
1550 #ifdef CONFIG_PM
1551         .suspend = snd_fm801_suspend,
1552         .resume = snd_fm801_resume,
1553 #endif
1554 };
1555
1556 static int __init alsa_card_fm801_init(void)
1557 {
1558         return pci_register_driver(&driver);
1559 }
1560
1561 static void __exit alsa_card_fm801_exit(void)
1562 {
1563         pci_unregister_driver(&driver);
1564 }
1565
1566 module_init(alsa_card_fm801_init)
1567 module_exit(alsa_card_fm801_exit)