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_playback_prepare(struct snd_pcm_substream *substream)
 439 {
 440         struct fm801 *chip = snd_pcm_substream_chip(substream);
 441         struct snd_pcm_runtime *runtime = substream->runtime;
 442
 443         chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
 444         chip->ply_count = snd_pcm_lib_period_bytes(substream);
 445         spin_lock_irq(&chip->reg_lock);
 446         chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
 447                              FM801_STEREO | FM801_RATE_MASK |
 448                              FM801_CHANNELS_MASK);
 449         if (snd_pcm_format_width(runtime->format) == 16)
 450                 chip->ply_ctrl |= FM801_16BIT;
 451         if (runtime->channels > 1) {
 452                 chip->ply_ctrl |= FM801_STEREO;
 453                 if (runtime->channels == 4)
 454                         chip->ply_ctrl |= FM801_CHANNELS_4;
 455                 else if (runtime->channels == 6)
 456                         chip->ply_ctrl |= FM801_CHANNELS_6;
 457         }
 458         chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 459         chip->ply_buf = 0;
 460         fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 461         fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
 462         chip->ply_buffer = runtime->dma_addr;
 463         chip->ply_pos = 0;
 464         fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
 465         fm801_writel(chip, PLY_BUF2,
 466                      chip->ply_buffer + (chip->ply_count % chip->ply_size));
 467         spin_unlock_irq(&chip->reg_lock);
 468         return 0;
 469 }
 470
 471 static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
 472 {
 473         struct fm801 *chip = snd_pcm_substream_chip(substream);
 474         struct snd_pcm_runtime *runtime = substream->runtime;
 475
 476         chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
 477         chip->cap_count = snd_pcm_lib_period_bytes(substream);
 478         spin_lock_irq(&chip->reg_lock);
 479         chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
 480                              FM801_STEREO | FM801_RATE_MASK);
 481         if (snd_pcm_format_width(runtime->format) == 16)
 482                 chip->cap_ctrl |= FM801_16BIT;
 483         if (runtime->channels > 1)
 484                 chip->cap_ctrl |= FM801_STEREO;
 485         chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 486         chip->cap_buf = 0;
 487         fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 488         fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
 489         chip->cap_buffer = runtime->dma_addr;
 490         chip->cap_pos = 0;
 491         fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
 492         fm801_writel(chip, CAP_BUF2,
 493                      chip->cap_buffer + (chip->cap_count % chip->cap_size));
 494         spin_unlock_irq(&chip->reg_lock);
 495         return 0;
 496 }
 497
 498 static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
 499 {
 500         struct fm801 *chip = snd_pcm_substream_chip(substream);
 501         size_t ptr;
 502
 503         if (!(chip->ply_ctrl & FM801_START))
 504                 return 0;
 505         spin_lock(&chip->reg_lock);
 506         ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
 507         if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
 508                 ptr += chip->ply_count;
 509                 ptr %= chip->ply_size;
 510         }
 511         spin_unlock(&chip->reg_lock);
 512         return bytes_to_frames(substream->runtime, ptr);
 513 }
 514
 515 static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
 516 {
 517         struct fm801 *chip = snd_pcm_substream_chip(substream);
 518         size_t ptr;
 519
 520         if (!(chip->cap_ctrl & FM801_START))
 521                 return 0;
 522         spin_lock(&chip->reg_lock);
 523         ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
 524         if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
 525                 ptr += chip->cap_count;
 526                 ptr %= chip->cap_size;
 527         }
 528         spin_unlock(&chip->reg_lock);
 529         return bytes_to_frames(substream->runtime, ptr);
 530 }
 531
 532 static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
 533 {
 534         struct fm801 *chip = dev_id;
 535         unsigned short status;
 536         unsigned int tmp;
 537
 538         status = fm801_readw(chip, IRQ_STATUS);
 539         status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
 540         if (! status)
 541                 return IRQ_NONE;
 542         /* ack first */
 543         fm801_writew(chip, IRQ_STATUS, status);
 544         if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
 545                 spin_lock(&chip->reg_lock);
 546                 chip->ply_buf++;
 547                 chip->ply_pos += chip->ply_count;
 548                 chip->ply_pos %= chip->ply_size;
 549                 tmp = chip->ply_pos + chip->ply_count;
 550                 tmp %= chip->ply_size;
 551                 if (chip->ply_buf & 1)
 552                         fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
 553                 else
 554                         fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
 555                 spin_unlock(&chip->reg_lock);
 556                 snd_pcm_period_elapsed(chip->playback_substream);
 557         }
 558         if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
 559                 spin_lock(&chip->reg_lock);
 560                 chip->cap_buf++;
 561                 chip->cap_pos += chip->cap_count;
 562                 chip->cap_pos %= chip->cap_size;
 563                 tmp = chip->cap_pos + chip->cap_count;
 564                 tmp %= chip->cap_size;
 565                 if (chip->cap_buf & 1)
 566                         fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
 567                 else
 568                         fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
 569                 spin_unlock(&chip->reg_lock);
 570                 snd_pcm_period_elapsed(chip->capture_substream);
 571         }
 572         if (chip->rmidi && (status & FM801_IRQ_MPU))
 573                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
 574         if (status & FM801_IRQ_VOLUME) {
 575                 /* TODO */
 576         }
 577
 578         return IRQ_HANDLED;
 579 }
 580
 581 static const struct snd_pcm_hardware snd_fm801_playback =
 582 {
 583         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 584                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 585                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 586                                  SNDRV_PCM_INFO_MMAP_VALID),
 587         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 588         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 589         .rate_min =             5500,
 590         .rate_max =             48000,
 591         .channels_min =         1,
 592         .channels_max =         2,
 593         .buffer_bytes_max =     (128*1024),
 594         .period_bytes_min =     64,
 595         .period_bytes_max =     (128*1024),
 596         .periods_min =          1,
 597         .periods_max =          1024,
 598         .fifo_size =            0,
 599 };
 600
 601 static const struct snd_pcm_hardware snd_fm801_capture =
 602 {
 603         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 604                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 605                                  SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 606                                  SNDRV_PCM_INFO_MMAP_VALID),
 607         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 608         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 609         .rate_min =             5500,
 610         .rate_max =             48000,
 611         .channels_min =         1,
 612         .channels_max =         2,
 613         .buffer_bytes_max =     (128*1024),
 614         .period_bytes_min =     64,
 615         .period_bytes_max =     (128*1024),
 616         .periods_min =          1,
 617         .periods_max =          1024,
 618         .fifo_size =            0,
 619 };
 620
 621 static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
 622 {
 623         struct fm801 *chip = snd_pcm_substream_chip(substream);
 624         struct snd_pcm_runtime *runtime = substream->runtime;
 625         int err;
 626
 627         chip->playback_substream = substream;
 628         runtime->hw = snd_fm801_playback;
 629         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 630                                    &hw_constraints_rates);
 631         if (chip->multichannel) {
 632                 runtime->hw.channels_max = 6;
 633                 snd_pcm_hw_constraint_list(runtime, 0,
 634                                            SNDRV_PCM_HW_PARAM_CHANNELS,
 635                                            &hw_constraints_channels);
 636         }
 637         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 638                 return err;
 639         return 0;
 640 }
 641
 642 static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
 643 {
 644         struct fm801 *chip = snd_pcm_substream_chip(substream);
 645         struct snd_pcm_runtime *runtime = substream->runtime;
 646         int err;
 647
 648         chip->capture_substream = substream;
 649         runtime->hw = snd_fm801_capture;
 650         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 651                                    &hw_constraints_rates);
 652         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 653                 return err;
 654         return 0;
 655 }
 656
 657 static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
 658 {
 659         struct fm801 *chip = snd_pcm_substream_chip(substream);
 660
 661         chip->playback_substream = NULL;
 662         return 0;
 663 }
 664
 665 static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
 666 {
 667         struct fm801 *chip = snd_pcm_substream_chip(substream);
 668
 669         chip->capture_substream = NULL;
 670         return 0;
 671 }
 672
 673 static const struct snd_pcm_ops snd_fm801_playback_ops = {
 674         .open =         snd_fm801_playback_open,
 675         .close =        snd_fm801_playback_close,
 676         .prepare =      snd_fm801_playback_prepare,
 677         .trigger =      snd_fm801_playback_trigger,
 678         .pointer =      snd_fm801_playback_pointer,
 679 };
 680
 681 static const struct snd_pcm_ops snd_fm801_capture_ops = {
 682         .open =         snd_fm801_capture_open,
 683         .close =        snd_fm801_capture_close,
 684         .prepare =      snd_fm801_capture_prepare,
 685         .trigger =      snd_fm801_capture_trigger,
 686         .pointer =      snd_fm801_capture_pointer,
 687 };
 688
 689 static int snd_fm801_pcm(struct fm801 *chip, int device)
 690 {
 691         struct pci_dev *pdev = to_pci_dev(chip->dev);
 692         struct snd_pcm *pcm;
 693         int err;
 694
 695         if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
 696                 return err;
 697
 698         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
 699         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
 700
 701         pcm->private_data = chip;
 702         pcm->info_flags = 0;
 703         strcpy(pcm->name, "FM801");
 704         chip->pcm = pcm;
 705
 706         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &pdev->dev,
 707                                        chip->multichannel ? 128*1024 : 64*1024, 128*1024);
 708
 709         return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 710                                      snd_pcm_alt_chmaps,
 711                                      chip->multichannel ? 6 : 2, 0,
 712                                      NULL);
 713 }
 714
 715 /*
 716  *  TEA5757 radio
 717  */
 718
 719 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
 720
 721 /* GPIO to TEA575x maps */
 722 struct snd_fm801_tea575x_gpio {
 723         u8 data, clk, wren, most;
 724         char *name;
 725 };
 726
 727 static const struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
 728         { .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
 729         { .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
 730         { .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
 731 };
 732
 733 #define get_tea575x_gpio(chip) \
 734         (&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
 735
 736 static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
 737 {
 738         struct fm801 *chip = tea->private_data;
 739         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 740         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 741
 742         reg &= ~(FM801_GPIO_GP(gpio.data) |
 743                  FM801_GPIO_GP(gpio.clk) |
 744                  FM801_GPIO_GP(gpio.wren));
 745
 746         reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
 747         reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
 748         /* WRITE_ENABLE is inverted */
 749         reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
 750
 751         fm801_writew(chip, GPIO_CTRL, reg);
 752 }
 753
 754 static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
 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         u8 ret;
 760
 761         ret = 0;
 762         if (reg & FM801_GPIO_GP(gpio.data))
 763                 ret |= TEA575X_DATA;
 764         if (reg & FM801_GPIO_GP(gpio.most))
 765                 ret |= TEA575X_MOST;
 766         return ret;
 767 }
 768
 769 static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
 770 {
 771         struct fm801 *chip = tea->private_data;
 772         unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 773         struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 774
 775         /* use GPIO lines and set write enable bit */
 776         reg |= FM801_GPIO_GS(gpio.data) |
 777                FM801_GPIO_GS(gpio.wren) |
 778                FM801_GPIO_GS(gpio.clk) |
 779                FM801_GPIO_GS(gpio.most);
 780         if (output) {
 781                 /* all of lines are in the write direction */
 782                 /* clear data and clock lines */
 783                 reg &= ~(FM801_GPIO_GD(gpio.data) |
 784                          FM801_GPIO_GD(gpio.wren) |
 785                          FM801_GPIO_GD(gpio.clk) |
 786                          FM801_GPIO_GP(gpio.data) |
 787                          FM801_GPIO_GP(gpio.clk) |
 788                          FM801_GPIO_GP(gpio.wren));
 789         } else {
 790                 /* use GPIO lines, set data direction to input */
 791                 reg |= FM801_GPIO_GD(gpio.data) |
 792                        FM801_GPIO_GD(gpio.most) |
 793                        FM801_GPIO_GP(gpio.data) |
 794                        FM801_GPIO_GP(gpio.most) |
 795                        FM801_GPIO_GP(gpio.wren);
 796                 /* all of lines are in the write direction, except data */
 797                 /* clear data, write enable and clock lines */
 798                 reg &= ~(FM801_GPIO_GD(gpio.wren) |
 799                          FM801_GPIO_GD(gpio.clk) |
 800                          FM801_GPIO_GP(gpio.clk));
 801         }
 802
 803         fm801_writew(chip, GPIO_CTRL, reg);
 804 }
 805
 806 static const struct snd_tea575x_ops snd_fm801_tea_ops = {
 807         .set_pins = snd_fm801_tea575x_set_pins,
 808         .get_pins = snd_fm801_tea575x_get_pins,
 809         .set_direction = snd_fm801_tea575x_set_direction,
 810 };
 811 #endif
 812
 813 /*
 814  *  Mixer routines
 815  */
 816
 817 #define FM801_SINGLE(xname, reg, shift, mask, invert) \
 818 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
 819   .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
 820   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 821
 822 static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
 823                                  struct snd_ctl_elem_info *uinfo)
 824 {
 825         int mask = (kcontrol->private_value >> 16) & 0xff;
 826
 827         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 828         uinfo->count = 1;
 829         uinfo->value.integer.min = 0;
 830         uinfo->value.integer.max = mask;
 831         return 0;
 832 }
 833
 834 static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
 835                                 struct snd_ctl_elem_value *ucontrol)
 836 {
 837         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 838         int reg = kcontrol->private_value & 0xff;
 839         int shift = (kcontrol->private_value >> 8) & 0xff;
 840         int mask = (kcontrol->private_value >> 16) & 0xff;
 841         int invert = (kcontrol->private_value >> 24) & 0xff;
 842         long *value = ucontrol->value.integer.value;
 843
 844         value[0] = (fm801_ioread16(chip, reg) >> shift) & mask;
 845         if (invert)
 846                 value[0] = mask - value[0];
 847         return 0;
 848 }
 849
 850 static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
 851                                 struct snd_ctl_elem_value *ucontrol)
 852 {
 853         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 854         int reg = kcontrol->private_value & 0xff;
 855         int shift = (kcontrol->private_value >> 8) & 0xff;
 856         int mask = (kcontrol->private_value >> 16) & 0xff;
 857         int invert = (kcontrol->private_value >> 24) & 0xff;
 858         unsigned short val;
 859
 860         val = (ucontrol->value.integer.value[0] & mask);
 861         if (invert)
 862                 val = mask - val;
 863         return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
 864 }
 865
 866 #define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 867 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
 868   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 869   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 870 #define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 871 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 872   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 873   .name = xname, .info = snd_fm801_info_double, \
 874   .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 875   .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 876   .tlv = { .p = (xtlv) } }
 877
 878 static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
 879                                  struct snd_ctl_elem_info *uinfo)
 880 {
 881         int mask = (kcontrol->private_value >> 16) & 0xff;
 882
 883         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 884         uinfo->count = 2;
 885         uinfo->value.integer.min = 0;
 886         uinfo->value.integer.max = mask;
 887         return 0;
 888 }
 889
 890 static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
 891                                 struct snd_ctl_elem_value *ucontrol)
 892 {
 893         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 894         int reg = kcontrol->private_value & 0xff;
 895         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 896         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 897         int mask = (kcontrol->private_value >> 16) & 0xff;
 898         int invert = (kcontrol->private_value >> 24) & 0xff;
 899         long *value = ucontrol->value.integer.value;
 900
 901         spin_lock_irq(&chip->reg_lock);
 902         value[0] = (fm801_ioread16(chip, reg) >> shift_left) & mask;
 903         value[1] = (fm801_ioread16(chip, reg) >> shift_right) & mask;
 904         spin_unlock_irq(&chip->reg_lock);
 905         if (invert) {
 906                 value[0] = mask - value[0];
 907                 value[1] = mask - value[1];
 908         }
 909         return 0;
 910 }
 911
 912 static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
 913                                 struct snd_ctl_elem_value *ucontrol)
 914 {
 915         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 916         int reg = kcontrol->private_value & 0xff;
 917         int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 918         int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 919         int mask = (kcontrol->private_value >> 16) & 0xff;
 920         int invert = (kcontrol->private_value >> 24) & 0xff;
 921         unsigned short val1, val2;
 922
 923         val1 = ucontrol->value.integer.value[0] & mask;
 924         val2 = ucontrol->value.integer.value[1] & mask;
 925         if (invert) {
 926                 val1 = mask - val1;
 927                 val2 = mask - val2;
 928         }
 929         return snd_fm801_update_bits(chip, reg,
 930                                      (mask << shift_left) | (mask << shift_right),
 931                                      (val1 << shift_left ) | (val2 << shift_right));
 932 }
 933
 934 static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
 935                               struct snd_ctl_elem_info *uinfo)
 936 {
 937         static const char * const texts[5] = {
 938                 "AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
 939         };
 940
 941         return snd_ctl_enum_info(uinfo, 1, 5, texts);
 942 }
 943
 944 static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
 945                              struct snd_ctl_elem_value *ucontrol)
 946 {
 947         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 948         unsigned short val;
 949
 950         val = fm801_readw(chip, REC_SRC) & 7;
 951         if (val > 4)
 952                 val = 4;
 953         ucontrol->value.enumerated.item[0] = val;
 954         return 0;
 955 }
 956
 957 static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
 958                              struct snd_ctl_elem_value *ucontrol)
 959 {
 960         struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 961         unsigned short val;
 962
 963         if ((val = ucontrol->value.enumerated.item[0]) > 4)
 964                 return -EINVAL;
 965         return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
 966 }
 967
 968 static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
 969
 970 #define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
 971
 972 static const struct snd_kcontrol_new snd_fm801_controls[] = {
 973 FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
 974                  db_scale_dsp),
 975 FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
 976 FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
 977                  db_scale_dsp),
 978 FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
 979 FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
 980                  db_scale_dsp),
 981 FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
 982 {
 983         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 984         .name = "Digital Capture Source",
 985         .info = snd_fm801_info_mux,
 986         .get = snd_fm801_get_mux,
 987         .put = snd_fm801_put_mux,
 988 }
 989 };
 990
 991 #define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
 992
 993 static const struct snd_kcontrol_new snd_fm801_controls_multi[] = {
 994 FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
 995 FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
 996 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
 997 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
 998 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
 999 FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1000 };
1001
1002 static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1003 {
1004         struct fm801 *chip = bus->private_data;
1005         chip->ac97_bus = NULL;
1006 }
1007
1008 static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1009 {
1010         struct fm801 *chip = ac97->private_data;
1011         if (ac97->num == 0) {
1012                 chip->ac97 = NULL;
1013         } else {
1014                 chip->ac97_sec = NULL;
1015         }
1016 }
1017
1018 static int snd_fm801_mixer(struct fm801 *chip)
1019 {
1020         struct snd_ac97_template ac97;
1021         unsigned int i;
1022         int err;
1023         static const struct snd_ac97_bus_ops ops = {
1024                 .write = snd_fm801_codec_write,
1025                 .read = snd_fm801_codec_read,
1026         };
1027
1028         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1029                 return err;
1030         chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1031
1032         memset(&ac97, 0, sizeof(ac97));
1033         ac97.private_data = chip;
1034         ac97.private_free = snd_fm801_mixer_free_ac97;
1035         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1036                 return err;
1037         if (chip->secondary) {
1038                 ac97.num = 1;
1039                 ac97.addr = chip->secondary_addr;
1040                 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1041                         return err;
1042         }
1043         for (i = 0; i < FM801_CONTROLS; i++) {
1044                 err = snd_ctl_add(chip->card,
1045                         snd_ctl_new1(&snd_fm801_controls[i], chip));
1046                 if (err < 0)
1047                         return err;
1048         }
1049         if (chip->multichannel) {
1050                 for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1051                         err = snd_ctl_add(chip->card,
1052                                 snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1053                         if (err < 0)
1054                                 return err;
1055                 }
1056         }
1057         return 0;
1058 }
1059
1060 /*
1061  *  initialization routines
1062  */
1063
1064 static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1065                           unsigned short reg, unsigned long waits)
1066 {
1067         unsigned long timeout = jiffies + waits;
1068
1069         fm801_writew(chip, AC97_CMD,
1070                      reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1071         udelay(5);
1072         do {
1073                 if ((fm801_readw(chip, AC97_CMD) &
1074                      (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1075                         return 0;
1076                 schedule_timeout_uninterruptible(1);
1077         } while (time_after(timeout, jiffies));
1078         return -EIO;
1079 }
1080
1081 static int reset_codec(struct fm801 *chip)
1082 {
1083         /* codec cold reset + AC'97 warm reset */
1084         fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1085         fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1086         udelay(100);
1087         fm801_writew(chip, CODEC_CTRL, 0);
1088
1089         return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1090 }
1091
1092 static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1093 {
1094         unsigned short cmdw;
1095
1096         if (chip->multichannel) {
1097                 if (chip->secondary_addr) {
1098                         wait_for_codec(chip, chip->secondary_addr,
1099                                        AC97_VENDOR_ID1, msecs_to_jiffies(50));
1100                 } else {
1101                         /* my card has the secondary codec */
1102                         /* at address #3, so the loop is inverted */
1103                         int i;
1104                         for (i = 3; i > 0; i--) {
1105                                 if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1106                                                      msecs_to_jiffies(50))) {
1107                                         cmdw = fm801_readw(chip, AC97_DATA);
1108                                         if (cmdw != 0xffff && cmdw != 0) {
1109                                                 chip->secondary = 1;
1110                                                 chip->secondary_addr = i;
1111                                                 break;
1112                                         }
1113                                 }
1114                         }
1115                 }
1116
1117                 /* the recovery phase, it seems that probing for non-existing codec might */
1118                 /* cause timeout problems */
1119                 wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1120         }
1121 }
1122
1123 static void snd_fm801_chip_init(struct fm801 *chip)
1124 {
1125         unsigned short cmdw;
1126
1127         /* init volume */
1128         fm801_writew(chip, PCM_VOL, 0x0808);
1129         fm801_writew(chip, FM_VOL, 0x9f1f);
1130         fm801_writew(chip, I2S_VOL, 0x8808);
1131
1132         /* I2S control - I2S mode */
1133         fm801_writew(chip, I2S_MODE, 0x0003);
1134
1135         /* interrupt setup */
1136         cmdw = fm801_readw(chip, IRQ_MASK);
1137         if (chip->irq < 0)
1138                 cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
1139         else
1140                 cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
1141         fm801_writew(chip, IRQ_MASK, cmdw);
1142
1143         /* interrupt clear */
1144         fm801_writew(chip, IRQ_STATUS,
1145                      FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1146 }
1147
1148 static int snd_fm801_free(struct fm801 *chip)
1149 {
1150         unsigned short cmdw;
1151
1152         if (chip->irq < 0)
1153                 goto __end_hw;
1154
1155         /* interrupt setup - mask everything */
1156         cmdw = fm801_readw(chip, IRQ_MASK);
1157         cmdw |= 0x00c3;
1158         fm801_writew(chip, IRQ_MASK, cmdw);
1159
1160         devm_free_irq(chip->dev, chip->irq, chip);
1161
1162       __end_hw:
1163 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1164         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1165                 snd_tea575x_exit(&chip->tea);
1166                 v4l2_device_unregister(&chip->v4l2_dev);
1167         }
1168 #endif
1169         return 0;
1170 }
1171
1172 static int snd_fm801_dev_free(struct snd_device *device)
1173 {
1174         struct fm801 *chip = device->device_data;
1175         return snd_fm801_free(chip);
1176 }
1177
1178 static int snd_fm801_create(struct snd_card *card,
1179                             struct pci_dev *pci,
1180                             int tea575x_tuner,
1181                             int radio_nr,
1182                             struct fm801 **rchip)
1183 {
1184         struct fm801 *chip;
1185         int err;
1186         static const struct snd_device_ops ops = {
1187                 .dev_free =     snd_fm801_dev_free,
1188         };
1189
1190         *rchip = NULL;
1191         if ((err = pcim_enable_device(pci)) < 0)
1192                 return err;
1193         chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1194         if (chip == NULL)
1195                 return -ENOMEM;
1196         spin_lock_init(&chip->reg_lock);
1197         chip->card = card;
1198         chip->dev = &pci->dev;
1199         chip->irq = -1;
1200         chip->tea575x_tuner = tea575x_tuner;
1201         if ((err = pci_request_regions(pci, "FM801")) < 0)
1202                 return err;
1203         chip->port = pci_resource_start(pci, 0);
1204
1205         if (pci->revision >= 0xb1)      /* FM801-AU */
1206                 chip->multichannel = 1;
1207
1208         if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1209                 if (reset_codec(chip) < 0) {
1210                         dev_info(chip->card->dev,
1211                                  "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1212                         chip->tea575x_tuner = 3 | TUNER_ONLY;
1213                 } else {
1214                         snd_fm801_chip_multichannel_init(chip);
1215                 }
1216         }
1217
1218         if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1219                 if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1220                                 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1221                         dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1222                         snd_fm801_free(chip);
1223                         return -EBUSY;
1224                 }
1225                 chip->irq = pci->irq;
1226                 card->sync_irq = chip->irq;
1227                 pci_set_master(pci);
1228         }
1229
1230         snd_fm801_chip_init(chip);
1231
1232         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1233                 snd_fm801_free(chip);
1234                 return err;
1235         }
1236
1237 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1238         err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1239         if (err < 0) {
1240                 snd_fm801_free(chip);
1241                 return err;
1242         }
1243         chip->tea.v4l2_dev = &chip->v4l2_dev;
1244         chip->tea.radio_nr = radio_nr;
1245         chip->tea.private_data = chip;
1246         chip->tea.ops = &snd_fm801_tea_ops;
1247         sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1248         if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1249             (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1250                 if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1251                         dev_err(card->dev, "TEA575x radio not found\n");
1252                         snd_fm801_free(chip);
1253                         return -ENODEV;
1254                 }
1255         } else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1256                 unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1257
1258                 /* autodetect tuner connection */
1259                 for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1260                         chip->tea575x_tuner = tea575x_tuner;
1261                         if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1262                                 dev_info(card->dev,
1263                                          "detected TEA575x radio type %s\n",
1264                                            get_tea575x_gpio(chip)->name);
1265                                 break;
1266                         }
1267                 }
1268                 if (tea575x_tuner == 4) {
1269                         dev_err(card->dev, "TEA575x radio not found\n");
1270                         chip->tea575x_tuner = TUNER_DISABLED;
1271                 }
1272
1273                 chip->tea575x_tuner |= tuner_only;
1274         }
1275         if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1276                 strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1277                         sizeof(chip->tea.card));
1278         }
1279 #endif
1280
1281         *rchip = chip;
1282         return 0;
1283 }
1284
1285 static int snd_card_fm801_probe(struct pci_dev *pci,
1286                                 const struct pci_device_id *pci_id)
1287 {
1288         static int dev;
1289         struct snd_card *card;
1290         struct fm801 *chip;
1291         struct snd_opl3 *opl3;
1292         int err;
1293
1294         if (dev >= SNDRV_CARDS)
1295                 return -ENODEV;
1296         if (!enable[dev]) {
1297                 dev++;
1298                 return -ENOENT;
1299         }
1300
1301         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1302                            0, &card);
1303         if (err < 0)
1304                 return err;
1305         if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip)) < 0) {
1306                 snd_card_free(card);
1307                 return err;
1308         }
1309         card->private_data = chip;
1310
1311         strcpy(card->driver, "FM801");
1312         strcpy(card->shortname, "ForteMedia FM801-");
1313         strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1314         sprintf(card->longname, "%s at 0x%lx, irq %i",
1315                 card->shortname, chip->port, chip->irq);
1316
1317         if (chip->tea575x_tuner & TUNER_ONLY)
1318                 goto __fm801_tuner_only;
1319
1320         if ((err = snd_fm801_pcm(chip, 0)) < 0) {
1321                 snd_card_free(card);
1322                 return err;
1323         }
1324         if ((err = snd_fm801_mixer(chip)) < 0) {
1325                 snd_card_free(card);
1326                 return err;
1327         }
1328         if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1329                                        chip->port + FM801_MPU401_DATA,
1330                                        MPU401_INFO_INTEGRATED |
1331                                        MPU401_INFO_IRQ_HOOK,
1332                                        -1, &chip->rmidi)) < 0) {
1333                 snd_card_free(card);
1334                 return err;
1335         }
1336         if ((err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1337                                    chip->port + FM801_OPL3_BANK1,
1338                                    OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1339                 snd_card_free(card);
1340                 return err;
1341         }
1342         if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1343                 snd_card_free(card);
1344                 return err;
1345         }
1346
1347       __fm801_tuner_only:
1348         if ((err = snd_card_register(card)) < 0) {
1349                 snd_card_free(card);
1350                 return err;
1351         }
1352         pci_set_drvdata(pci, card);
1353         dev++;
1354         return 0;
1355 }
1356
1357 static void snd_card_fm801_remove(struct pci_dev *pci)
1358 {
1359         snd_card_free(pci_get_drvdata(pci));
1360 }
1361
1362 #ifdef CONFIG_PM_SLEEP
1363 static const unsigned char saved_regs[] = {
1364         FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1365         FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1366         FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1367         FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1368 };
1369
1370 static int snd_fm801_suspend(struct device *dev)
1371 {
1372         struct snd_card *card = dev_get_drvdata(dev);
1373         struct fm801 *chip = card->private_data;
1374         int i;
1375
1376         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1377
1378         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1379                 chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1380
1381         if (chip->tea575x_tuner & TUNER_ONLY) {
1382                 /* FIXME: tea575x suspend */
1383         } else {
1384                 snd_ac97_suspend(chip->ac97);
1385                 snd_ac97_suspend(chip->ac97_sec);
1386         }
1387
1388         return 0;
1389 }
1390
1391 static int snd_fm801_resume(struct device *dev)
1392 {
1393         struct snd_card *card = dev_get_drvdata(dev);
1394         struct fm801 *chip = card->private_data;
1395         int i;
1396
1397         if (chip->tea575x_tuner & TUNER_ONLY) {
1398                 snd_fm801_chip_init(chip);
1399         } else {
1400                 reset_codec(chip);
1401                 snd_fm801_chip_multichannel_init(chip);
1402                 snd_fm801_chip_init(chip);
1403                 snd_ac97_resume(chip->ac97);
1404                 snd_ac97_resume(chip->ac97_sec);
1405         }
1406
1407         for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1408                 fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1409
1410 #ifdef CONFIG_SND_FM801_TEA575X_BOOL
1411         if (!(chip->tea575x_tuner & TUNER_DISABLED))
1412                 snd_tea575x_set_freq(&chip->tea);
1413 #endif
1414
1415         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1416         return 0;
1417 }
1418
1419 static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1420 #define SND_FM801_PM_OPS        &snd_fm801_pm
1421 #else
1422 #define SND_FM801_PM_OPS        NULL
1423 #endif /* CONFIG_PM_SLEEP */
1424
1425 static struct pci_driver fm801_driver = {
1426         .name = KBUILD_MODNAME,
1427         .id_table = snd_fm801_ids,
1428         .probe = snd_card_fm801_probe,
1429         .remove = snd_card_fm801_remove,
1430         .driver = {
1431                 .pm = SND_FM801_PM_OPS,
1432         },
1433 };
1434
1435 module_pci_driver(fm801_driver);