sound/pci/fm801.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  The driver for the ForteMedia FM801 based soundcards
   4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   5  */
   6
   7 #include <linux/delay.h>
   8 #include <linux/init.h>
   9 #include <linux/interrupt.h>
  10 #include <linux/io.h>
  11 #include <linux/pci.h>
  12 #include <linux/slab.h>
  13 #include <linux/module.h>
  14 #include <sound/core.h>
  15 #include <sound/pcm.h>
  16 #include <sound/tlv.h>
  17 #include <sound/ac97_codec.h>
  18 #include <sound/mpu401.h>
  19 #include <sound/opl3.h>
  20 #include <sound/initval.h>
  21
  22 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
  23 #include <media/drv-intf/tea575x.h>
  24 #endif
  25
  26 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  27 MODULE_DESCRIPTION("ForteMedia FM801");
  28 MODULE_LICENSE("GPL");
  29 MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
  30                 "{Genius,SoundMaker Live 5.1}}");
  31
  32 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  33 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  34 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  35 /*
  36  *  Enable TEA575x tuner
  37  *    1 = MediaForte 256-PCS
  38  *    2 = MediaForte 256-PCP
  39  *    3 = MediaForte 64-PCR
  40  *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
  41  *  High 16-bits are video (radio) device number + 1
  42  */
  43 static int tea575x_tuner[SNDRV_CARDS];
  44 static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
  45
  46 module_param_array(index, int, NULL, 0444);
  47 MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
  48 module_param_array(id, charp, NULL, 0444);
  49 MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
  50 module_param_array(enable, bool, NULL, 0444);
  51 MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
  52 module_param_array(tea575x_tuner, int, NULL, 0444);
  53 MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only).");
  54 module_param_array(radio_nr, int, NULL, 0444);
  55 MODULE_PARM_DESC(radio_nr, "Radio device numbers");
  56
  57
  58 #define TUNER_DISABLED          (1<<3)
  59 #define TUNER_ONLY              (1<<4)
  60 #define TUNER_TYPE_MASK         (~TUNER_ONLY & 0xFFFF)
  61
  62 /*
  63  *  Direct registers
  64  */
  65
  66 #define fm801_writew(chip,reg,value)    outw((value), chip->port + FM801_##reg)
  67 #define fm801_readw(chip,reg)           inw(chip->port + FM801_##reg)
  68
  69 #define fm801_writel(chip,reg,value)    outl((value), chip->port + FM801_##reg)
  70
  71 #define FM801_PCM_VOL           0x00    /* PCM Output Volume */
  72 #define FM801_FM_VOL            0x02    /* FM Output Volume */
  73 #define FM801_I2S_VOL           0x04    /* I2S Volume */
  74 #define FM801_REC_SRC           0x06    /* Record Source */
  75 #define FM801_PLY_CTRL          0x08    /* Playback Control */
  76 #define FM801_PLY_COUNT         0x0a    /* Playback Count */
  77 #define FM801_PLY_BUF1          0x0c    /* Playback Bufer I */
  78 #define FM801_PLY_BUF2          0x10    /* Playback Buffer II */
  79 #define FM801_CAP_CTRL          0x14    /* Capture Control */
  80 #define FM801_CAP_COUNT         0x16    /* Capture Count */
  81 #define FM801_CAP_BUF1          0x18    /* Capture Buffer I */
  82 #define FM801_CAP_BUF2          0x1c    /* Capture Buffer II */
  83 #define FM801_CODEC_CTRL        0x22    /* Codec Control */
  84 #define FM801_I2S_MODE          0x24    /* I2S Mode Control */
  85 #define FM801_VOLUME            0x26    /* Volume Up/Down/Mute Status */
  86 #define FM801_I2C_CTRL          0x29    /* I2C Control */
  87 #define FM801_AC97_CMD          0x2a    /* AC'97 Command */
  88 #define FM801_AC97_DATA         0x2c    /* AC'97 Data */
  89 #define FM801_MPU401_DATA       0x30    /* MPU401 Data */
  90 #define FM801_MPU401_CMD        0x31    /* MPU401 Command */
  91 #define FM801_GPIO_CTRL         0x52    /* General Purpose I/O Control */
  92 #define FM801_GEN_CTRL          0x54    /* General Control */
  93 #define FM801_IRQ_MASK          0x56    /* Interrupt Mask */
  94 #define FM801_IRQ_STATUS        0x5a    /* Interrupt Status */
  95 #define FM801_OPL3_BANK0        0x68    /* OPL3 Status Read / Bank 0 Write */
  96 #define FM801_OPL3_DATA0        0x69    /* OPL3 Data 0 Write */
  97 #define FM801_OPL3_BANK1        0x6a    /* OPL3 Bank 1 Write */
  98 #define FM801_OPL3_DATA1        0x6b    /* OPL3 Bank 1 Write */
  99 #define FM801_POWERDOWN         0x70    /* Blocks Power Down Control */
 100
 101 /* codec access */
 102 #define FM801_AC97_READ         (1<<7)  /* read=1, write=0 */
 103 #define FM801_AC97_VALID        (1<<8)  /* port valid=1 */
 104 #define FM801_AC97_BUSY         (1<<9)  /* busy=1 */
 105 #define FM801_AC97_ADDR_SHIFT   10      /* codec id (2bit) */
 106
 107 /* playback and record control register bits */
 108 #define FM801_BUF1_LAST         (1<<1)
 109 #define FM801_BUF2_LAST         (1<<2)
 110 #define FM801_START             (1<<5)
 111 #define FM801_PAUSE             (1<<6)
 112 #define FM801_IMMED_STOP        (1<<7)
 113 #define FM801_RATE_SHIFT        8
 114 #define FM801_RATE_MASK         (15 << FM801_RATE_SHIFT)
 115 #define FM801_CHANNELS_4        (1<<12) /* playback only */
 116 #define FM801_CHANNELS_6        (2<<12) /* playback only */
 117 #define FM801_CHANNELS_6MS      (3<<12) /* playback only */
 118 #define FM801_CHANNELS_MASK     (3<<12)
 119 #define FM801_16BIT             (1<<14)
 120 #define FM801_STEREO            (1<<15)
 121
 122 /* IRQ status bits */
 123 #define FM801_IRQ_PLAYBACK      (1<<8)
 124 #define FM801_IRQ_CAPTURE       (1<<9)
 125 #define FM801_IRQ_VOLUME        (1<<14)
 126 #define FM801_IRQ_MPU           (1<<15)
 127
 128 /* GPIO control register */
 129 #define FM801_GPIO_GP0          (1<<0)  /* read/write */
 130 #define FM801_GPIO_GP1          (1<<1)
 131 #define FM801_GPIO_GP2          (1<<2)
 132 #define FM801_GPIO_GP3          (1<<3)
 133 #define FM801_GPIO_GP(x)        (1<<(0+(x)))
 134 #define FM801_GPIO_GD0          (1<<8)  /* directions: 1 = input, 0 = output*/
 135 #define FM801_GPIO_GD1          (1<<9)
 136 #define FM801_GPIO_GD2          (1<<10)
 137 #define FM801_GPIO_GD3          (1<<11)
 138 #define FM801_GPIO_GD(x)        (1<<(8+(x)))
 139 #define FM801_GPIO_GS0          (1<<12) /* function select: */
 140 #define FM801_GPIO_GS1          (1<<13) /*    1 = GPIO */
 141 #define FM801_GPIO_GS2          (1<<14) /*    0 = other (S/PDIF, VOL) */
 142 #define FM801_GPIO_GS3          (1<<15)
 143 #define FM801_GPIO_GS(x)        (1<<(12+(x)))
 144
 145 /**
 146  * struct fm801 - describes FM801 chip
 147  * @port:               I/O port number
 148  * @multichannel:       multichannel support
 149  * @secondary:          secondary codec
 150  * @secondary_addr:     address of the secondary codec
 151  * @tea575x_tuner:      tuner access method & flags
 152  * @ply_ctrl:           playback control
 153  * @cap_ctrl:           capture control
 154  */
 155 struct fm801 {
 156         struct device *dev;
 157         int irq;
 158
 159         unsigned long port;
 160         unsigned int multichannel: 1,
 161                      secondary: 1;
 162         unsigned char secondary_addr;
 163         unsigned int tea575x_tuner;
 164
 165         unsigned short ply_ctrl;
 166         unsigned short cap_ctrl;
 167
 168         unsigned long ply_buffer;
 169         unsigned int ply_buf;
 170         unsigned int ply_count;
 171         unsigned int ply_size;
 172         unsigned int ply_pos;
 173
 174         unsigned long cap_buffer;
 175         unsigned int cap_buf;
 176         unsigned int cap_count;
 177         unsigned int cap_size;
 178         unsigned int cap_pos;
 179
 180         struct snd_ac97_bus *ac97_bus;
 181         struct snd_ac97 *ac97;
 182         struct snd_ac97 *ac97_sec;
 183
 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 CONFIG_SND_FM801_TEA575X_BOOL
 196         struct v4l2_device v4l2_dev;
 197         struct snd_tea575x tea;
 198 #endif
 199
 200 #ifdef CONFIG_PM_SLEEP
 201         u16 saved_regs[0x20];
 202 #endif
 203 };
 204
 205 /*
 206  * IO accessors
 207  */
 208
 209 static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
 210 {
 211         outw(value, chip->port + offset);
 212 }
 213
 214 static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
 215 {
 216         return inw(chip->port + offset);
 217 }
 218
 219 static const struct pci_device_id snd_fm801_ids[] = {
 220         { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
 221         { 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
 222         { 0, }
 223 };
 224
 225 MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
 226
 227 /*
 228  *  common I/O routines
 229  */
 230
 231 static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
 232 {
 233         unsigned int idx;
 234
 235         for (idx = 0; idx < iterations; idx++) {
 236                 if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
 237                         return true;
 238                 udelay(10);
 239         }
 240         return false;
 241 }
 242
 243 static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
 244 {
 245         unsigned int idx;
 246
 247         for (idx = 0; idx < iterations; idx++) {
 248                 if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
 249                         return true;
 250                 udelay(10);
 251         }
 252         return false;
 253 }
 254
 255 static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
 256                                  unsigned short mask, unsigned short value)
 257 {
 258         int change;
 259         unsigned long flags;
 260         unsigned short old, new;
 261
 262         spin_lock_irqsave(&chip->reg_lock, flags);
 263         old = fm801_ioread16(chip, reg);
 264         new = (old & ~mask) | value;
 265         change = old != new;
 266         if (change)
 267                 fm801_iowrite16(chip, reg, new);
 268         spin_unlock_irqrestore(&chip->reg_lock, flags);
 269         return change;
 270 }
 271
 272 static void snd_fm801_codec_write(struct snd_ac97 *ac97,
 273                                   unsigned short reg,
 274                                   unsigned short val)
 275 {
 276         struct fm801 *chip = ac97->private_data;
 277
 278         /*
 279          *  Wait until the codec interface is not ready..
 280          */
 281         if (!fm801_ac97_is_ready(chip, 100)) {
 282                 dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
 283                 return;
 284         }
 285
 286         /* write data and address */
 287         fm801_writew(chip, AC97_DATA, val);
 288         fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
 289         /*
 290          *  Wait until the write command is not completed..
 291          */
 292         if (!fm801_ac97_is_ready(chip, 1000))
 293                 dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
 294                 ac97->num);
 295 }
 296
 297 static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 298 {
 299         struct fm801 *chip = ac97->private_data;
 300
 301         /*
 302          *  Wait until the codec interface is not ready..
 303          */
 304         if (!fm801_ac97_is_ready(chip, 100)) {
 305                 dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
 306                 return 0;
 307         }
 308
 309         /* read command */
 310         fm801_writew(chip, AC97_CMD,
 311                      reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
 312         if (!fm801_ac97_is_ready(chip, 100)) {
 313                 dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
 314                         ac97->num);
 315                 return 0;
 316         }
 317
 318         if (!fm801_ac97_is_valid(chip, 1000)) {
 319                 dev_err(chip->card->dev,
 320                         "AC'97 interface #%d is not valid (2)\n", ac97->num);
 321                 return 0;
 322         }
 323
 324         return fm801_readw(chip, AC97_DATA);
 325 }
 326
 327 static const unsigned int rates[] = {
 328   5500,  8000,  9600, 11025,
 329   16000, 19200, 22050, 32000,
 330   38400, 44100, 48000
 331 };
 332
 333 static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
 334         .count = ARRAY_SIZE(rates),
 335         .list = rates,
 336         .mask = 0,
 337 };
 338
 339 static const unsigned int channels[] = {
 340   2, 4, 6
 341 };
 342
 343 static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
 344         .count = ARRAY_SIZE(channels),
 345         .list = channels,
 346         .mask = 0,
 347 };
 348
 349 /*
 350  *  Sample rate routines
 351  */
 352
 353 static unsigned short snd_fm801_rate_bits(unsigned int rate)
 354 {
 355         unsigned int idx;
 356
 357         for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
 358                 if (rates[idx] == rate)
 359                         return idx;
 360         snd_BUG();
 361         return ARRAY_SIZE(rates) - 1;
 362 }
 363
 364 /*
 365  *  PCM part
 366  */
 367
 368 static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
 369                                       int cmd)
 370 {
 371         struct fm801 *chip = snd_pcm_substream_chip(substream);
 372
 373         spin_lock(&chip->reg_lock);
 374         switch (cmd) {
 375         case SNDRV_PCM_TRIGGER_START:
 376                 chip->ply_ctrl &= ~(FM801_BUF1_LAST |
 377                                      FM801_BUF2_LAST |
 378                                      FM801_PAUSE);
 379                 chip->ply_ctrl |= FM801_START |
 380                                    FM801_IMMED_STOP;
 381                 break;
 382         case SNDRV_PCM_TRIGGER_STOP:
 383                 chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
 384                 break;
 385         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 386         case SNDRV_PCM_TRIGGER_SUSPEND:
 387                 chip->ply_ctrl |= FM801_PAUSE;
 388                 break;
 389         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 390         case SNDRV_PCM_TRIGGER_RESUME:
 391                 chip->ply_ctrl &= ~FM801_PAUSE;
 392                 break;
 393         default:
 394                 spin_unlock(&chip->reg_lock);
 395                 snd_BUG();
 396                 return -EINVAL;
 397         }
 398         fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 399         spin_unlock(&chip->reg_lock);
 400         return 0;
 401 }
 402
 403 static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
 404                                      int cmd)
 405 {
 406         struct fm801 *chip = snd_pcm_substream_chip(substream);
 407
 408         spin_lock(&chip->reg_lock);
 409         switch (cmd) {
 410         case SNDRV_PCM_TRIGGER_START:
 411                 chip->cap_ctrl &= ~(FM801_BUF1_LAST |
 412                                      FM801_BUF2_LAST |
 413                                      FM801_PAUSE);
 414                 chip->cap_ctrl |= FM801_START |
 415                                    FM801_IMMED_STOP;
 416                 break;
 417         case SNDRV_PCM_TRIGGER_STOP:
 418                 chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
 419                 break;
 420         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 421         case SNDRV_PCM_TRIGGER_SUSPEND:
 422                 chip->cap_ctrl |= FM801_PAUSE;
 423                 break;
 424         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 425         case SNDRV_PCM_TRIGGER_RESUME:
 426                 chip->cap_ctrl &= ~FM801_PAUSE;
 427                 break;
 428         default:
 429                 spin_unlock(&chip->reg_lock);
 430                 snd_BUG();
 431                 return -EINVAL;
 432         }
 433         fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 434         spin_unlock(&chip->reg_lock);
 435         return 0;
 436 }
 437
 438 static int snd_fm801_hw_params(struct snd_pcm_substream *substream,
 439                                struct snd_pcm_hw_params *hw_params)
 440 {
 441         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 442 }
 443
 444 static int snd_fm801_hw_free(struct snd_pcm_substream *substream)
 445 {
 446         return snd_pcm_lib_free_pages(substream);
 447 }
 448
 449 static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
 450 {
 451         struct fm801 *chip = snd_pcm_substream_chip(substream);
 452         struct snd_pcm_runtime *runtime = substream->runtime;
 453
 454         chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
 455         chip->ply_count = snd_pcm_lib_period_bytes(substream);
 456         spin_lock_irq(&chip->reg_lock);
 457         chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
 458                              FM801_STEREO | FM801_RATE_MASK |
 459                              FM801_CHANNELS_MASK);
 460         if (snd_pcm_format_width(runtime->format) == 16)
 461                 chip->ply_ctrl |= FM801_16BIT;
 462         if (runtime->channels > 1) {
 463                 chip->ply_ctrl |= FM801_STEREO;
 464                 if (runtime->channels == 4)
 465                         chip->ply_ctrl |= FM801_CHANNELS_4;
 466                 else if (runtime->channels == 6)
 467                         chip->ply_ctrl |= FM801_CHANNELS_6;
 468         }
 469         chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 470         chip->ply_buf = 0;
 471         fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 472         fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
 473         chip->ply_buffer = runtime->dma_addr;
 474         chip->ply_pos = 0;
 475         fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
 476         fm801_writel(chip, PLY_BUF2,
 477                      chip->ply_buffer + (chip->ply_count % chip->ply_size));
 478         spin_unlock_irq(&chip->reg_lock);
 479         return 0;
 480 }
 481
 482 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
 483 {
 484         struct fm801 *chip = snd_pcm_substream_chip(substream);
 485         struct snd_pcm_runtime *runtime = substream->runtime;
 486
 487         chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
 488         chip->cap_count = snd_pcm_lib_period_bytes(substream);
 489         spin_lock_irq(&chip->reg_lock);
 490         chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
 491                              FM801_STEREO | FM801_RATE_MASK);
 492         if (snd_pcm_format_width(runtime->format) == 16)
 493                 chip->cap_ctrl |= FM801_16BIT;
 494         if (runtime->channels > 1)
 495                 chip->cap_ctrl |= FM801_STEREO;
 496         chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 497         chip->cap_buf = 0;
 498         fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 499         fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
 500         chip->cap_buffer = runtime->dma_addr;
 501         chip->cap_pos = 0;
 502         fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
 503         fm801_writel(chip, CAP_BUF2,
 504                      chip->cap_buffer + (chip->cap_count % chip->cap_size));
 505         spin_unlock_irq(&chip->reg_lock);
 506         return 0;
 507 }
 508
 509 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
 510 {
 511         struct fm801 *chip = snd_pcm_substream_chip(substream);
 512         size_t ptr;
 513
 514         if (!(chip->ply_ctrl & FM801_START))
 515                 return 0;
 516         spin_lock(&chip->reg_lock);
 517         ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
 518         if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
 519                 ptr += chip->ply_count;
 520                 ptr %= chip->ply_size;
 521         }
 522         spin_unlock(&chip->reg_lock);
 523         return bytes_to_frames(substream->runtime, ptr);
 524 }
 525
 526 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
 527 {
 528         struct fm801 *chip = snd_pcm_substream_chip(substream);
 529         size_t ptr;
 530
 531         if (!(chip->cap_ctrl & FM801_START))
 532                 return 0;
 533         spin_lock(&chip->reg_lock);
 534         ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
 535         if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
 536                 ptr += chip->cap_count;
 537                 ptr %= chip->cap_size;
 538         }
 539         spin_unlock(&chip->reg_lock);
 540         return bytes_to_frames(substream->runtime, ptr);
 541 }
 542
 543 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
 544 {
 545         struct fm801 *chip = dev_id;
 546         unsigned short status;
 547         unsigned int tmp;
 548
 549         status = fm801_readw(chip, IRQ_STATUS);
 550         status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
 551         if (! status)
 552                 return IRQ_NONE;
 553         /* ack first */
 554         fm801_writew(chip, IRQ_STATUS, status);
 555         if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
 556                 spin_lock(&chip->reg_lock);
 557                 chip->ply_buf++;
 558                 chip->ply_pos += chip->ply_count;
 559                 chip->ply_pos %= chip->ply_size;
 560                 tmp = chip->ply_pos + chip->ply_count;
 561                 tmp %= chip->ply_size;
 562                 if (chip->ply_buf & 1)
 563                         fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
 564                 else
 565                         fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
 566                 spin_unlock(&chip->reg_lock);
 567                 snd_pcm_period_elapsed(chip->playback_substream);
 568         }
 569         if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
 570                 spin_lock(&chip->reg_lock);
 571                 chip->cap_buf++;
 572                 chip->cap_pos += chip->cap_count;
 573                 chip->cap_pos %= chip->cap_size;
 574                 tmp = chip->cap_pos + chip->cap_count;
 575                 tmp %= chip->cap_size;
 576                 if (chip->cap_buf & 1)
 577                         fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
 578                 else
 579                         fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
 580                 spin_unlock(&chip->reg_lock);
 581                 snd_pcm_period_elapsed(chip->capture_substream);
 582         }
 583         if (chip->rmidi && (status & FM801_IRQ_MPU))
 584                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
 585         if (status & FM801_IRQ_VOLUME) {
 586                 /* TODO */
 587         }
 588
 589         return IRQ_HANDLED;
 590 }
 591
 592 static const struct snd_pcm_hardware snd_fm801_playback =
 593 {
 594         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 595                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 596                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 597                                  SNDRV_PCM_INFO_MMAP_VALID),
 598         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 599         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 600         .rate_min =             5500,
 601         .rate_max =             48000,
 602         .channels_min =         1,
 603         .channels_max =         2,
 604         .buffer_bytes_max =     (128*1024),
 605         .period_bytes_min =     64,
 606         .period_bytes_max =     (128*1024),
 607         .periods_min =          1,
 608         .periods_max =          1024,
 609         .fifo_size =            0,
 610 };
 611
 612 static const struct snd_pcm_hardware snd_fm801_capture =
 613 {
 614         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 615                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 616                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 617                                  SNDRV_PCM_INFO_MMAP_VALID),
 618         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 619         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 620         .rate_min =             5500,
 621         .rate_max =             48000,
 622         .channels_min =         1,
 623         .channels_max =         2,
 624         .buffer_bytes_max =     (128*1024),
 625         .period_bytes_min =     64,
 626         .period_bytes_max =     (128*1024),
 627         .periods_min =          1,
 628         .periods_max =          1024,
 629         .fifo_size =            0,
 630 };
 631
 632 static int snd_fm801_playback_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->playback_substream = substream;
 639         runtime->hw = snd_fm801_playback;
 640         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 641                                    &hw_constraints_rates);
 642         if (chip->multichannel) {
 643                 runtime->hw.channels_max = 6;
 644                 snd_pcm_hw_constraint_list(runtime, 0,
 645                                            SNDRV_PCM_HW_PARAM_CHANNELS,
 646                                            &hw_constraints_channels);
 647         }
 648         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 649                 return err;
 650         return 0;
 651 }
 652
 653 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
 654 {
 655         struct fm801 *chip = snd_pcm_substream_chip(substream);
 656         struct snd_pcm_runtime *runtime = substream->runtime;
 657         int err;
 658
 659         chip->capture_substream = substream;
 660         runtime->hw = snd_fm801_capture;
 661         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 662                                    &hw_constraints_rates);
 663         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 664                 return err;
 665         return 0;
 666 }
 667
 668 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
 669 {
 670         struct fm801 *chip = snd_pcm_substream_chip(substream);
 671
 672         chip->playback_substream = NULL;
 673         return 0;
 674 }
 675
 676 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
 677 {
 678         struct fm801 *chip = snd_pcm_substream_chip(substream);
 679
 680         chip->capture_substream = NULL;
 681         return 0;
 682 }
 683
 684 static const struct snd_pcm_ops snd_fm801_playback_ops = {
 685         .open =         snd_fm801_playback_open,
 686         .close =        snd_fm801_playback_close,
 687         .ioctl =        snd_pcm_lib_ioctl,
 688         .hw_params =    snd_fm801_hw_params,
 689         .hw_free =      snd_fm801_hw_free,
 690         .prepare =      snd_fm801_playback_prepare,
 691         .trigger =      snd_fm801_playback_trigger,
 692         .pointer =      snd_fm801_playback_pointer,
 693 };
 694
 695 static const struct snd_pcm_ops snd_fm801_capture_ops = {
 696         .open =         snd_fm801_capture_open,
 697         .close =        snd_fm801_capture_close,
 698         .ioctl =        snd_pcm_lib_ioctl,
 699         .hw_params =    snd_fm801_hw_params,
 700         .hw_free =      snd_fm801_hw_free,
 701         .prepare =      snd_fm801_capture_prepare,
 702         .trigger =      snd_fm801_capture_trigger,
 703         .pointer =      snd_fm801_capture_pointer,
 704 };
 705
 706 static int snd_fm801_pcm(struct fm801 *chip, int device)
 707 {
 708         struct pci_dev *pdev = to_pci_dev(chip->dev);
 709         struct snd_pcm *pcm;
 710         int err;
 711
 712         if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
 713                 return err;
 714
 715         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
 716         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
 717
 718         pcm->private_data = chip;
 719         pcm->info_flags = 0;
 720         strcpy(pcm->name, "FM801");
 721         chip->pcm = pcm;
 722
 723         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 724                                               &pdev->dev,
 725                                               chip->multichannel ? 128*1024 : 64*1024, 128*1024);
 726
 727         return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 728                                      snd_pcm_alt_chmaps,
 729                                      chip->multichannel ? 6 : 2, 0,
 730                                      NULL);
 731 }
 732
 733 /*
 734  *  TEA5757 radio
 735  */
 736
 737 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
 738
 739 /* GPIO to TEA575x maps */
 740 struct snd_fm801_tea575x_gpio {
 741         u8 data, clk, wren, most;
 742         char *name;
 743 };
 744
 745 static struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
 746         { .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
 747         { .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
 748         { .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
 749 };
 750
 751 #define get_tea575x_gpio(chip) \
 752         (&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
 753
 754 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
 755 {
 756         struct fm801 *chip = tea->private_data;
 757         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 758         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 759
 760         reg &= ~(FM801_GPIO_GP(gpio.data) |
 761                  FM801_GPIO_GP(gpio.clk) |
 762                  FM801_GPIO_GP(gpio.wren));
 763
 764         reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
 765         reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
 766         /* WRITE_ENABLE is inverted */
 767         reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
 768
 769         fm801_writew(chip, GPIO_CTRL, reg);
 770 }
 771
 772 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
 773 {
 774         struct fm801 *chip = tea->private_data;
 775         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 776         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 777         u8 ret;
 778
 779         ret = 0;
 780         if (reg & FM801_GPIO_GP(gpio.data))
 781                 ret |= TEA575X_DATA;
 782         if (reg & FM801_GPIO_GP(gpio.most))
 783                 ret |= TEA575X_MOST;
 784         return ret;
 785 }
 786
 787 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
 788 {
 789         struct fm801 *chip = tea->private_data;
 790         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 791         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 792
 793         /* use GPIO lines and set write enable bit */
 794         reg |= FM801_GPIO_GS(gpio.data) |
 795                FM801_GPIO_GS(gpio.wren) |
 796                FM801_GPIO_GS(gpio.clk) |
 797                FM801_GPIO_GS(gpio.most);
 798         if (output) {
 799                 /* all of lines are in the write direction */
 800                 /* clear data and clock lines */
 801                 reg &= ~(FM801_GPIO_GD(gpio.data) |
 802                          FM801_GPIO_GD(gpio.wren) |
 803                          FM801_GPIO_GD(gpio.clk) |
 804                          FM801_GPIO_GP(gpio.data) |
 805                          FM801_GPIO_GP(gpio.clk) |
 806                          FM801_GPIO_GP(gpio.wren));
 807         } else {
 808                 /* use GPIO lines, set data direction to input */
 809                 reg |= FM801_GPIO_GD(gpio.data) |
 810                        FM801_GPIO_GD(gpio.most) |
 811                        FM801_GPIO_GP(gpio.data) |
 812                        FM801_GPIO_GP(gpio.most) |
 813                        FM801_GPIO_GP(gpio.wren);
 814                 /* all of lines are in the write direction, except data */
 815                 /* clear data, write enable and clock lines */
 816                 reg &= ~(FM801_GPIO_GD(gpio.wren) |
 817                          FM801_GPIO_GD(gpio.clk) |
 818                          FM801_GPIO_GP(gpio.clk));
 819         }
 820
 821         fm801_writew(chip, GPIO_CTRL, reg);
 822 }
 823
 824 static const struct snd_tea575x_ops snd_fm801_tea_ops = {
 825         .set_pins = snd_fm801_tea575x_set_pins,
 826         .get_pins = snd_fm801_tea575x_get_pins,
 827         .set_direction = snd_fm801_tea575x_set_direction,
 828 };
 829 #endif
 830
 831 /*
 832  *  Mixer routines
 833  */
 834
 835 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
 836 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
 837   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
 838   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 839
 840 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
 841                                  struct snd_ctl_elem_info *uinfo)
 842 {
 843         int mask = (kcontrol->private_value >> 16) & 0xff;
 844
 845         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 846         uinfo->count = 1;
 847         uinfo->value.integer.min = 0;
 848         uinfo->value.integer.max = mask;
 849         return 0;
 850 }
 851
 852 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
 853                                 struct snd_ctl_elem_value *ucontrol)
 854 {
 855         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 856         int reg = kcontrol->private_value & 0xff;
 857         int shift = (kcontrol->private_value >> 8) & 0xff;
 858         int mask = (kcontrol->private_value >> 16) & 0xff;
 859         int invert = (kcontrol->private_value >> 24) & 0xff;
 860         long *value = ucontrol->value.integer.value;
 861
 862         value[0] = (fm801_ioread16(chip, reg) >> shift) & mask;
 863         if (invert)
 864                 value[0] = mask - value[0];
 865         return 0;
 866 }
 867
 868 static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
 869                                 struct snd_ctl_elem_value *ucontrol)
 870 {
 871         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 872         int reg = kcontrol->private_value & 0xff;
 873         int shift = (kcontrol->private_value >> 8) & 0xff;
 874         int mask = (kcontrol->private_value >> 16) & 0xff;
 875         int invert = (kcontrol->private_value >> 24) & 0xff;
 876         unsigned short val;
 877
 878         val = (ucontrol->value.integer.value[0] & mask);
 879         if (invert)
 880                 val = mask - val;
 881         return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
 882 }
 883
 884 #define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 885 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
 886   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 887   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 888 #define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 889 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 890   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 891   .name = xname, .info = snd_fm801_info_double, \
 892   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 893   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 894   .tlv = { .p = (xtlv) } }
 895
 896 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
 897                                  struct snd_ctl_elem_info *uinfo)
 898 {
 899         int mask = (kcontrol->private_value >> 16) & 0xff;
 900
 901         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 902         uinfo->count = 2;
 903         uinfo->value.integer.min = 0;
 904         uinfo->value.integer.max = mask;
 905         return 0;
 906 }
 907
 908 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
 909                                 struct snd_ctl_elem_value *ucontrol)
 910 {
 911         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 912         int reg = kcontrol->private_value & 0xff;
 913         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 914         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 915         int mask = (kcontrol->private_value >> 16) & 0xff;
 916         int invert = (kcontrol->private_value >> 24) & 0xff;
 917         long *value = ucontrol->value.integer.value;
 918
 919         spin_lock_irq(&chip->reg_lock);
 920         value[0] = (fm801_ioread16(chip, reg) >> shift_left) & mask;
 921         value[1] = (fm801_ioread16(chip, reg) >> shift_right) & mask;
 922         spin_unlock_irq(&chip->reg_lock);
 923         if (invert) {
 924                 value[0] = mask - value[0];
 925                 value[1] = mask - value[1];
 926         }
 927         return 0;
 928 }
 929
 930 static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
 931                                 struct snd_ctl_elem_value *ucontrol)
 932 {
 933         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 934         int reg = kcontrol->private_value & 0xff;
 935         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 936         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 937         int mask = (kcontrol->private_value >> 16) & 0xff;
 938         int invert = (kcontrol->private_value >> 24) & 0xff;
 939         unsigned short val1, val2;
 940
 941         val1 = ucontrol->value.integer.value[0] & mask;
 942         val2 = ucontrol->value.integer.value[1] & mask;
 943         if (invert) {
 944                 val1 = mask - val1;
 945                 val2 = mask - val2;
 946         }
 947         return snd_fm801_update_bits(chip, reg,
 948                                      (mask << shift_left) | (mask << shift_right),
 949                                      (val1 << shift_left ) | (val2 << shift_right));
 950 }
 951
 952 static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
 953                               struct snd_ctl_elem_info *uinfo)
 954 {
 955         static const char * const texts[5] = {
 956                 "AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
 957         };
 958
 959         return snd_ctl_enum_info(uinfo, 1, 5, texts);
 960 }
 961
 962 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
 963                              struct snd_ctl_elem_value *ucontrol)
 964 {
 965         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 966         unsigned short val;
 967
 968         val = fm801_readw(chip, REC_SRC) & 7;
 969         if (val > 4)
 970                 val = 4;
 971         ucontrol->value.enumerated.item[0] = val;
 972         return 0;
 973 }
 974
 975 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
 976                              struct snd_ctl_elem_value *ucontrol)
 977 {
 978         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 979         unsigned short val;
 980
 981         if ((val = ucontrol->value.enumerated.item[0]) > 4)
 982                 return -EINVAL;
 983         return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
 984 }
 985
 986 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
 987
 988 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
 989
 990 static struct snd_kcontrol_new snd_fm801_controls[] = {
 991 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
 992                  db_scale_dsp),
 993 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
 994 FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
 995                  db_scale_dsp),
 996 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
 997 FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
 998                  db_scale_dsp),
 999 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
1000 {
1001         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1002         .name = "Digital Capture Source",
1003         .info = snd_fm801_info_mux,
1004         .get = snd_fm801_get_mux,
1005         .put = snd_fm801_put_mux,
1006 }
1007 };
1008
1009 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
1010
1011 static struct snd_kcontrol_new snd_fm801_controls_multi[] = {
1012 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
1013 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
1014 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
1015 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
1016 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
1017 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1018 };
1019
1020 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1021 {
1022         struct fm801 *chip = bus->private_data;
1023         chip->ac97_bus = NULL;
1024 }
1025
1026 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1027 {
1028         struct fm801 *chip = ac97->private_data;
1029         if (ac97->num == 0) {
1030                 chip->ac97 = NULL;
1031         } else {
1032                 chip->ac97_sec = NULL;
1033         }
1034 }
1035
1036 static int snd_fm801_mixer(struct fm801 *chip)
1037 {
1038         struct snd_ac97_template ac97;
1039         unsigned int i;
1040         int err;
1041         static struct snd_ac97_bus_ops ops = {
1042                 .write = snd_fm801_codec_write,
1043                 .read = snd_fm801_codec_read,
1044         };
1045
1046         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1047                 return err;
1048         chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1049
1050         memset(&ac97, 0, sizeof(ac97));
1051         ac97.private_data = chip;
1052         ac97.private_free = snd_fm801_mixer_free_ac97;
1053         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1054                 return err;
1055         if (chip->secondary) {
1056                 ac97.num = 1;
1057                 ac97.addr = chip->secondary_addr;
1058                 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1059                         return err;
1060         }
1061         for (i = 0; i < FM801_CONTROLS; i++) {
1062                 err = snd_ctl_add(chip->card,
1063                         snd_ctl_new1(&snd_fm801_controls[i], chip));
1064                 if (err < 0)
1065                         return err;
1066         }
1067         if (chip->multichannel) {
1068                 for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1069                         err = snd_ctl_add(chip->card,
1070                                 snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1071                         if (err < 0)
1072                                 return err;
1073                 }
1074         }
1075         return 0;
1076 }
1077
1078 /*
1079  *  initialization routines
1080  */
1081
1082 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1083                           unsigned short reg, unsigned long waits)
1084 {
1085         unsigned long timeout = jiffies + waits;
1086
1087         fm801_writew(chip, AC97_CMD,
1088                      reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1089         udelay(5);
1090         do {
1091                 if ((fm801_readw(chip, AC97_CMD) &
1092                      (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1093                         return 0;
1094                 schedule_timeout_uninterruptible(1);
1095         } while (time_after(timeout, jiffies));
1096         return -EIO;
1097 }
1098
1099 static int reset_codec(struct fm801 *chip)
1100 {
1101         /* codec cold reset + AC'97 warm reset */
1102         fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1103         fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1104         udelay(100);
1105         fm801_writew(chip, CODEC_CTRL, 0);
1106
1107         return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1108 }
1109
1110 static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1111 {
1112         unsigned short cmdw;
1113
1114         if (chip->multichannel) {
1115                 if (chip->secondary_addr) {
1116                         wait_for_codec(chip, chip->secondary_addr,
1117                                        AC97_VENDOR_ID1, msecs_to_jiffies(50));
1118                 } else {
1119                         /* my card has the secondary codec */
1120                         /* at address #3, so the loop is inverted */
1121                         int i;
1122                         for (i = 3; i > 0; i--) {
1123                                 if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1124                                                      msecs_to_jiffies(50))) {
1125                                         cmdw = fm801_readw(chip, AC97_DATA);
1126                                         if (cmdw != 0xffff && cmdw != 0) {
1127                                                 chip->secondary = 1;
1128                                                 chip->secondary_addr = i;
1129                                                 break;
1130                                         }
1131                                 }
1132                         }
1133                 }
1134
1135                 /* the recovery phase, it seems that probing for non-existing codec might */
1136                 /* cause timeout problems */
1137                 wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1138         }
1139 }
1140
1141 static void snd_fm801_chip_init(struct fm801 *chip)
1142 {
1143         unsigned short cmdw;
1144
1145         /* init volume */
1146         fm801_writew(chip, PCM_VOL, 0x0808);
1147         fm801_writew(chip, FM_VOL, 0x9f1f);
1148         fm801_writew(chip, I2S_VOL, 0x8808);
1149
1150         /* I2S control - I2S mode */
1151         fm801_writew(chip, I2S_MODE, 0x0003);
1152
1153         /* interrupt setup */
1154         cmdw = fm801_readw(chip, IRQ_MASK);
1155         if (chip->irq < 0)
1156                 cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
1157         else
1158                 cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
1159         fm801_writew(chip, IRQ_MASK, cmdw);
1160
1161         /* interrupt clear */
1162         fm801_writew(chip, IRQ_STATUS,
1163                      FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1164 }
1165
1166 static int snd_fm801_free(struct fm801 *chip)
1167 {
1168         unsigned short cmdw;
1169
1170         if (chip->irq < 0)
1171                 goto __end_hw;
1172
1173         /* interrupt setup - mask everything */
1174         cmdw = fm801_readw(chip, IRQ_MASK);
1175         cmdw |= 0x00c3;
1176         fm801_writew(chip, IRQ_MASK, cmdw);
1177
1178         devm_free_irq(chip->dev, chip->irq, chip);
1179
1180       __end_hw:
1181 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1182         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1183                 snd_tea575x_exit(&chip->tea);
1184                 v4l2_device_unregister(&chip->v4l2_dev);
1185         }
1186 #endif
1187         return 0;
1188 }
1189
1190 static int snd_fm801_dev_free(struct snd_device *device)
1191 {
1192         struct fm801 *chip = device->device_data;
1193         return snd_fm801_free(chip);
1194 }
1195
1196 static int snd_fm801_create(struct snd_card *card,
1197                             struct pci_dev *pci,
1198                             int tea575x_tuner,
1199                             int radio_nr,
1200                             struct fm801 **rchip)
1201 {
1202         struct fm801 *chip;
1203         int err;
1204         static struct snd_device_ops ops = {
1205                 .dev_free =     snd_fm801_dev_free,
1206         };
1207
1208         *rchip = NULL;
1209         if ((err = pcim_enable_device(pci)) < 0)
1210                 return err;
1211         chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1212         if (chip == NULL)
1213                 return -ENOMEM;
1214         spin_lock_init(&chip->reg_lock);
1215         chip->card = card;
1216         chip->dev = &pci->dev;
1217         chip->irq = -1;
1218         chip->tea575x_tuner = tea575x_tuner;
1219         if ((err = pci_request_regions(pci, "FM801")) < 0)
1220                 return err;
1221         chip->port = pci_resource_start(pci, 0);
1222
1223         if (pci->revision >= 0xb1)      /* FM801-AU */
1224                 chip->multichannel = 1;
1225
1226         if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1227                 if (reset_codec(chip) < 0) {
1228                         dev_info(chip->card->dev,
1229                                  "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1230                         chip->tea575x_tuner = 3 | TUNER_ONLY;
1231                 } else {
1232                         snd_fm801_chip_multichannel_init(chip);
1233                 }
1234         }
1235
1236         if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1237                 if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1238                                 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1239                         dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1240                         snd_fm801_free(chip);
1241                         return -EBUSY;
1242                 }
1243                 chip->irq = pci->irq;
1244                 pci_set_master(pci);
1245         }
1246
1247         snd_fm801_chip_init(chip);
1248
1249         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1250                 snd_fm801_free(chip);
1251                 return err;
1252         }
1253
1254 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1255         err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1256         if (err < 0) {
1257                 snd_fm801_free(chip);
1258                 return err;
1259         }
1260         chip->tea.v4l2_dev = &chip->v4l2_dev;
1261         chip->tea.radio_nr = radio_nr;
1262         chip->tea.private_data = chip;
1263         chip->tea.ops = &snd_fm801_tea_ops;
1264         sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1265         if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1266             (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1267                 if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1268                         dev_err(card->dev, "TEA575x radio not found\n");
1269                         snd_fm801_free(chip);
1270                         return -ENODEV;
1271                 }
1272         } else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1273                 unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1274
1275                 /* autodetect tuner connection */
1276                 for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1277                         chip->tea575x_tuner = tea575x_tuner;
1278                         if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1279                                 dev_info(card->dev,
1280                                          "detected TEA575x radio type %s\n",
1281                                            get_tea575x_gpio(chip)->name);
1282                                 break;
1283                         }
1284                 }
1285                 if (tea575x_tuner == 4) {
1286                         dev_err(card->dev, "TEA575x radio not found\n");
1287                         chip->tea575x_tuner = TUNER_DISABLED;
1288                 }
1289
1290                 chip->tea575x_tuner |= tuner_only;
1291         }
1292         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1293                 strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1294                         sizeof(chip->tea.card));
1295         }
1296 #endif
1297
1298         *rchip = chip;
1299         return 0;
1300 }
1301
1302 static int snd_card_fm801_probe(struct pci_dev *pci,
1303                                 const struct pci_device_id *pci_id)
1304 {
1305         static int dev;
1306         struct snd_card *card;
1307         struct fm801 *chip;
1308         struct snd_opl3 *opl3;
1309         int err;
1310
1311         if (dev >= SNDRV_CARDS)
1312                 return -ENODEV;
1313         if (!enable[dev]) {
1314                 dev++;
1315                 return -ENOENT;
1316         }
1317
1318         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1319                            0, &card);
1320         if (err < 0)
1321                 return err;
1322         if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip)) < 0) {
1323                 snd_card_free(card);
1324                 return err;
1325         }
1326         card->private_data = chip;
1327
1328         strcpy(card->driver, "FM801");
1329         strcpy(card->shortname, "ForteMedia FM801-");
1330         strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1331         sprintf(card->longname, "%s at 0x%lx, irq %i",
1332                 card->shortname, chip->port, chip->irq);
1333
1334         if (chip->tea575x_tuner & TUNER_ONLY)
1335                 goto __fm801_tuner_only;
1336
1337         if ((err = snd_fm801_pcm(chip, 0)) < 0) {
1338                 snd_card_free(card);
1339                 return err;
1340         }
1341         if ((err = snd_fm801_mixer(chip)) < 0) {
1342                 snd_card_free(card);
1343                 return err;
1344         }
1345         if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1346                                        chip->port + FM801_MPU401_DATA,
1347                                        MPU401_INFO_INTEGRATED |
1348                                        MPU401_INFO_IRQ_HOOK,
1349                                        -1, &chip->rmidi)) < 0) {
1350                 snd_card_free(card);
1351                 return err;
1352         }
1353         if ((err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1354                                    chip->port + FM801_OPL3_BANK1,
1355                                    OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1356                 snd_card_free(card);
1357                 return err;
1358         }
1359         if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1360                 snd_card_free(card);
1361                 return err;
1362         }
1363
1364       __fm801_tuner_only:
1365         if ((err = snd_card_register(card)) < 0) {
1366                 snd_card_free(card);
1367                 return err;
1368         }
1369         pci_set_drvdata(pci, card);
1370         dev++;
1371         return 0;
1372 }
1373
1374 static void snd_card_fm801_remove(struct pci_dev *pci)
1375 {
1376         snd_card_free(pci_get_drvdata(pci));
1377 }
1378
1379 #ifdef CONFIG_PM_SLEEP
1380 static unsigned char saved_regs[] = {
1381         FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1382         FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1383         FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1384         FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1385 };
1386
1387 static int snd_fm801_suspend(struct device *dev)
1388 {
1389         struct snd_card *card = dev_get_drvdata(dev);
1390         struct fm801 *chip = card->private_data;
1391         int i;
1392
1393         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1394
1395         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1396                 chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1397
1398         if (chip->tea575x_tuner & TUNER_ONLY) {
1399                 /* FIXME: tea575x suspend */
1400         } else {
1401                 snd_ac97_suspend(chip->ac97);
1402                 snd_ac97_suspend(chip->ac97_sec);
1403         }
1404
1405         return 0;
1406 }
1407
1408 static int snd_fm801_resume(struct device *dev)
1409 {
1410         struct snd_card *card = dev_get_drvdata(dev);
1411         struct fm801 *chip = card->private_data;
1412         int i;
1413
1414         if (chip->tea575x_tuner & TUNER_ONLY) {
1415                 snd_fm801_chip_init(chip);
1416         } else {
1417                 reset_codec(chip);
1418                 snd_fm801_chip_multichannel_init(chip);
1419                 snd_fm801_chip_init(chip);
1420                 snd_ac97_resume(chip->ac97);
1421                 snd_ac97_resume(chip->ac97_sec);
1422         }
1423
1424         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1425                 fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1426
1427 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1428         if (!(chip->tea575x_tuner & TUNER_DISABLED))
1429                 snd_tea575x_set_freq(&chip->tea);
1430 #endif
1431
1432         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1433         return 0;
1434 }
1435
1436 static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1437 #define SND_FM801_PM_OPS        &snd_fm801_pm
1438 #else
1439 #define SND_FM801_PM_OPS        NULL
1440 #endif /* CONFIG_PM_SLEEP */
1441
1442 static struct pci_driver fm801_driver = {
1443         .name = KBUILD_MODNAME,
1444         .id_table = snd_fm801_ids,
1445         .probe = snd_card_fm801_probe,
1446         .remove = snd_card_fm801_remove,
1447         .driver = {
1448                 .pm = SND_FM801_PM_OPS,
1449         },
1450 };
1451
1452 module_pci_driver(fm801_driver);