linux/sound/pci/fm801.c
<<
>>
Prefs
   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
  26MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  27MODULE_DESCRIPTION("ForteMedia FM801");
  28MODULE_LICENSE("GPL");
  29
  30static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  31static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  32static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  33/*
  34 *  Enable TEA575x tuner
  35 *    1 = MediaForte 256-PCS
  36 *    2 = MediaForte 256-PCP
  37 *    3 = MediaForte 64-PCR
  38 *   16 = setup tuner only (this is additional bit), i.e. SF64-PCR FM card
  39 *  High 16-bits are video (radio) device number + 1
  40 */
  41static int tea575x_tuner[SNDRV_CARDS];
  42static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
  43
  44module_param_array(index, int, NULL, 0444);
  45MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
  46module_param_array(id, charp, NULL, 0444);
  47MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
  48module_param_array(enable, bool, NULL, 0444);
  49MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
  50module_param_array(tea575x_tuner, int, NULL, 0444);
  51MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only).");
  52module_param_array(radio_nr, int, NULL, 0444);
  53MODULE_PARM_DESC(radio_nr, "Radio device numbers");
  54
  55
  56#define TUNER_DISABLED          (1<<3)
  57#define TUNER_ONLY              (1<<4)
  58#define TUNER_TYPE_MASK         (~TUNER_ONLY & 0xFFFF)
  59
  60/*
  61 *  Direct registers
  62 */
  63
  64#define fm801_writew(chip,reg,value)    outw((value), chip->port + FM801_##reg)
  65#define fm801_readw(chip,reg)           inw(chip->port + FM801_##reg)
  66
  67#define fm801_writel(chip,reg,value)    outl((value), chip->port + FM801_##reg)
  68
  69#define FM801_PCM_VOL           0x00    /* PCM Output Volume */
  70#define FM801_FM_VOL            0x02    /* FM Output Volume */
  71#define FM801_I2S_VOL           0x04    /* I2S Volume */
  72#define FM801_REC_SRC           0x06    /* Record Source */
  73#define FM801_PLY_CTRL          0x08    /* Playback Control */
  74#define FM801_PLY_COUNT         0x0a    /* Playback Count */
  75#define FM801_PLY_BUF1          0x0c    /* Playback Bufer I */
  76#define FM801_PLY_BUF2          0x10    /* Playback Buffer II */
  77#define FM801_CAP_CTRL          0x14    /* Capture Control */
  78#define FM801_CAP_COUNT         0x16    /* Capture Count */
  79#define FM801_CAP_BUF1          0x18    /* Capture Buffer I */
  80#define FM801_CAP_BUF2          0x1c    /* Capture Buffer II */
  81#define FM801_CODEC_CTRL        0x22    /* Codec Control */
  82#define FM801_I2S_MODE          0x24    /* I2S Mode Control */
  83#define FM801_VOLUME            0x26    /* Volume Up/Down/Mute Status */
  84#define FM801_I2C_CTRL          0x29    /* I2C Control */
  85#define FM801_AC97_CMD          0x2a    /* AC'97 Command */
  86#define FM801_AC97_DATA         0x2c    /* AC'97 Data */
  87#define FM801_MPU401_DATA       0x30    /* MPU401 Data */
  88#define FM801_MPU401_CMD        0x31    /* MPU401 Command */
  89#define FM801_GPIO_CTRL         0x52    /* General Purpose I/O Control */
  90#define FM801_GEN_CTRL          0x54    /* General Control */
  91#define FM801_IRQ_MASK          0x56    /* Interrupt Mask */
  92#define FM801_IRQ_STATUS        0x5a    /* Interrupt Status */
  93#define FM801_OPL3_BANK0        0x68    /* OPL3 Status Read / Bank 0 Write */
  94#define FM801_OPL3_DATA0        0x69    /* OPL3 Data 0 Write */
  95#define FM801_OPL3_BANK1        0x6a    /* OPL3 Bank 1 Write */
  96#define FM801_OPL3_DATA1        0x6b    /* OPL3 Bank 1 Write */
  97#define FM801_POWERDOWN         0x70    /* Blocks Power Down Control */
  98
  99/* codec access */
 100#define FM801_AC97_READ         (1<<7)  /* read=1, write=0 */
 101#define FM801_AC97_VALID        (1<<8)  /* port valid=1 */
 102#define FM801_AC97_BUSY         (1<<9)  /* busy=1 */
 103#define FM801_AC97_ADDR_SHIFT   10      /* codec id (2bit) */
 104
 105/* playback and record control register bits */
 106#define FM801_BUF1_LAST         (1<<1)
 107#define FM801_BUF2_LAST         (1<<2)
 108#define FM801_START             (1<<5)
 109#define FM801_PAUSE             (1<<6)
 110#define FM801_IMMED_STOP        (1<<7)
 111#define FM801_RATE_SHIFT        8
 112#define FM801_RATE_MASK         (15 << FM801_RATE_SHIFT)
 113#define FM801_CHANNELS_4        (1<<12) /* playback only */
 114#define FM801_CHANNELS_6        (2<<12) /* playback only */
 115#define FM801_CHANNELS_6MS      (3<<12) /* playback only */
 116#define FM801_CHANNELS_MASK     (3<<12)
 117#define FM801_16BIT             (1<<14)
 118#define FM801_STEREO            (1<<15)
 119
 120/* IRQ status bits */
 121#define FM801_IRQ_PLAYBACK      (1<<8)
 122#define FM801_IRQ_CAPTURE       (1<<9)
 123#define FM801_IRQ_VOLUME        (1<<14)
 124#define FM801_IRQ_MPU           (1<<15)
 125
 126/* GPIO control register */
 127#define FM801_GPIO_GP0          (1<<0)  /* read/write */
 128#define FM801_GPIO_GP1          (1<<1)
 129#define FM801_GPIO_GP2          (1<<2)
 130#define FM801_GPIO_GP3          (1<<3)
 131#define FM801_GPIO_GP(x)        (1<<(0+(x)))
 132#define FM801_GPIO_GD0          (1<<8)  /* directions: 1 = input, 0 = output*/
 133#define FM801_GPIO_GD1          (1<<9)
 134#define FM801_GPIO_GD2          (1<<10)
 135#define FM801_GPIO_GD3          (1<<11)
 136#define FM801_GPIO_GD(x)        (1<<(8+(x)))
 137#define FM801_GPIO_GS0          (1<<12) /* function select: */
 138#define FM801_GPIO_GS1          (1<<13) /*    1 = GPIO */
 139#define FM801_GPIO_GS2          (1<<14) /*    0 = other (S/PDIF, VOL) */
 140#define FM801_GPIO_GS3          (1<<15)
 141#define FM801_GPIO_GS(x)        (1<<(12+(x)))
 142        
 143/**
 144 * struct fm801 - describes FM801 chip
 145 * @dev:                device for this chio
 146 * @irq:                irq number
 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 * @ply_buffer:         playback buffer
 155 * @ply_buf:            playback buffer index
 156 * @ply_count:          playback buffer count
 157 * @ply_size:           playback buffer size
 158 * @ply_pos:            playback position
 159 * @cap_buffer:         capture buffer
 160 * @cap_buf:            capture buffer index
 161 * @cap_count:          capture buffer count
 162 * @cap_size:           capture buffer size
 163 * @cap_pos:            capture position
 164 * @ac97_bus:           ac97 bus handle
 165 * @ac97:               ac97 handle
 166 * @ac97_sec:           ac97 secondary handle
 167 * @card:               ALSA card
 168 * @pcm:                PCM devices
 169 * @rmidi:              rmidi device
 170 * @playback_substream: substream for playback
 171 * @capture_substream:  substream for capture
 172 * @p_dma_size:         playback DMA size
 173 * @c_dma_size:         capture DMA size
 174 * @reg_lock:           lock
 175 * @proc_entry:         /proc entry
 176 * @v4l2_dev:           v4l2 device
 177 * @tea:                tea575a structure
 178 * @saved_regs:         context saved during suspend
 179 */
 180struct fm801 {
 181        struct device *dev;
 182        int irq;
 183
 184        unsigned long port;
 185        unsigned int multichannel: 1,
 186                     secondary: 1;
 187        unsigned char secondary_addr;
 188        unsigned int tea575x_tuner;
 189
 190        unsigned short ply_ctrl;
 191        unsigned short cap_ctrl;
 192
 193        unsigned long ply_buffer;
 194        unsigned int ply_buf;
 195        unsigned int ply_count;
 196        unsigned int ply_size;
 197        unsigned int ply_pos;
 198
 199        unsigned long cap_buffer;
 200        unsigned int cap_buf;
 201        unsigned int cap_count;
 202        unsigned int cap_size;
 203        unsigned int cap_pos;
 204
 205        struct snd_ac97_bus *ac97_bus;
 206        struct snd_ac97 *ac97;
 207        struct snd_ac97 *ac97_sec;
 208
 209        struct snd_card *card;
 210        struct snd_pcm *pcm;
 211        struct snd_rawmidi *rmidi;
 212        struct snd_pcm_substream *playback_substream;
 213        struct snd_pcm_substream *capture_substream;
 214        unsigned int p_dma_size;
 215        unsigned int c_dma_size;
 216
 217        spinlock_t reg_lock;
 218        struct snd_info_entry *proc_entry;
 219
 220#ifdef CONFIG_SND_FM801_TEA575X_BOOL
 221        struct v4l2_device v4l2_dev;
 222        struct snd_tea575x tea;
 223#endif
 224
 225#ifdef CONFIG_PM_SLEEP
 226        u16 saved_regs[0x20];
 227#endif
 228};
 229
 230/*
 231 * IO accessors
 232 */
 233
 234static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
 235{
 236        outw(value, chip->port + offset);
 237}
 238
 239static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
 240{
 241        return inw(chip->port + offset);
 242}
 243
 244static const struct pci_device_id snd_fm801_ids[] = {
 245        { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
 246        { 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
 247        { 0, }
 248};
 249
 250MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
 251
 252/*
 253 *  common I/O routines
 254 */
 255
 256static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
 257{
 258        unsigned int idx;
 259
 260        for (idx = 0; idx < iterations; idx++) {
 261                if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
 262                        return true;
 263                udelay(10);
 264        }
 265        return false;
 266}
 267
 268static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
 269{
 270        unsigned int idx;
 271
 272        for (idx = 0; idx < iterations; idx++) {
 273                if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
 274                        return true;
 275                udelay(10);
 276        }
 277        return false;
 278}
 279
 280static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
 281                                 unsigned short mask, unsigned short value)
 282{
 283        int change;
 284        unsigned long flags;
 285        unsigned short old, new;
 286
 287        spin_lock_irqsave(&chip->reg_lock, flags);
 288        old = fm801_ioread16(chip, reg);
 289        new = (old & ~mask) | value;
 290        change = old != new;
 291        if (change)
 292                fm801_iowrite16(chip, reg, new);
 293        spin_unlock_irqrestore(&chip->reg_lock, flags);
 294        return change;
 295}
 296
 297static void snd_fm801_codec_write(struct snd_ac97 *ac97,
 298                                  unsigned short reg,
 299                                  unsigned short val)
 300{
 301        struct fm801 *chip = ac97->private_data;
 302
 303        /*
 304         *  Wait until the codec interface is not ready..
 305         */
 306        if (!fm801_ac97_is_ready(chip, 100)) {
 307                dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
 308                return;
 309        }
 310
 311        /* write data and address */
 312        fm801_writew(chip, AC97_DATA, val);
 313        fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
 314        /*
 315         *  Wait until the write command is not completed..
 316         */
 317        if (!fm801_ac97_is_ready(chip, 1000))
 318                dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
 319                ac97->num);
 320}
 321
 322static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 323{
 324        struct fm801 *chip = ac97->private_data;
 325
 326        /*
 327         *  Wait until the codec interface is not ready..
 328         */
 329        if (!fm801_ac97_is_ready(chip, 100)) {
 330                dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
 331                return 0;
 332        }
 333
 334        /* read command */
 335        fm801_writew(chip, AC97_CMD,
 336                     reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
 337        if (!fm801_ac97_is_ready(chip, 100)) {
 338                dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
 339                        ac97->num);
 340                return 0;
 341        }
 342
 343        if (!fm801_ac97_is_valid(chip, 1000)) {
 344                dev_err(chip->card->dev,
 345                        "AC'97 interface #%d is not valid (2)\n", ac97->num);
 346                return 0;
 347        }
 348
 349        return fm801_readw(chip, AC97_DATA);
 350}
 351
 352static const unsigned int rates[] = {
 353  5500,  8000,  9600, 11025,
 354  16000, 19200, 22050, 32000,
 355  38400, 44100, 48000
 356};
 357
 358static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
 359        .count = ARRAY_SIZE(rates),
 360        .list = rates,
 361        .mask = 0,
 362};
 363
 364static const unsigned int channels[] = {
 365  2, 4, 6
 366};
 367
 368static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
 369        .count = ARRAY_SIZE(channels),
 370        .list = channels,
 371        .mask = 0,
 372};
 373
 374/*
 375 *  Sample rate routines
 376 */
 377
 378static unsigned short snd_fm801_rate_bits(unsigned int rate)
 379{
 380        unsigned int idx;
 381
 382        for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
 383                if (rates[idx] == rate)
 384                        return idx;
 385        snd_BUG();
 386        return ARRAY_SIZE(rates) - 1;
 387}
 388
 389/*
 390 *  PCM part
 391 */
 392
 393static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
 394                                      int cmd)
 395{
 396        struct fm801 *chip = snd_pcm_substream_chip(substream);
 397
 398        spin_lock(&chip->reg_lock);
 399        switch (cmd) {
 400        case SNDRV_PCM_TRIGGER_START:
 401                chip->ply_ctrl &= ~(FM801_BUF1_LAST |
 402                                     FM801_BUF2_LAST |
 403                                     FM801_PAUSE);
 404                chip->ply_ctrl |= FM801_START |
 405                                   FM801_IMMED_STOP;
 406                break;
 407        case SNDRV_PCM_TRIGGER_STOP:
 408                chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
 409                break;
 410        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 411        case SNDRV_PCM_TRIGGER_SUSPEND:
 412                chip->ply_ctrl |= FM801_PAUSE;
 413                break;
 414        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 415        case SNDRV_PCM_TRIGGER_RESUME:
 416                chip->ply_ctrl &= ~FM801_PAUSE;
 417                break;
 418        default:
 419                spin_unlock(&chip->reg_lock);
 420                snd_BUG();
 421                return -EINVAL;
 422        }
 423        fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 424        spin_unlock(&chip->reg_lock);
 425        return 0;
 426}
 427
 428static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
 429                                     int cmd)
 430{
 431        struct fm801 *chip = snd_pcm_substream_chip(substream);
 432
 433        spin_lock(&chip->reg_lock);
 434        switch (cmd) {
 435        case SNDRV_PCM_TRIGGER_START:
 436                chip->cap_ctrl &= ~(FM801_BUF1_LAST |
 437                                     FM801_BUF2_LAST |
 438                                     FM801_PAUSE);
 439                chip->cap_ctrl |= FM801_START |
 440                                   FM801_IMMED_STOP;
 441                break;
 442        case SNDRV_PCM_TRIGGER_STOP:
 443                chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
 444                break;
 445        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 446        case SNDRV_PCM_TRIGGER_SUSPEND:
 447                chip->cap_ctrl |= FM801_PAUSE;
 448                break;
 449        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 450        case SNDRV_PCM_TRIGGER_RESUME:
 451                chip->cap_ctrl &= ~FM801_PAUSE;
 452                break;
 453        default:
 454                spin_unlock(&chip->reg_lock);
 455                snd_BUG();
 456                return -EINVAL;
 457        }
 458        fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 459        spin_unlock(&chip->reg_lock);
 460        return 0;
 461}
 462
 463static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
 464{
 465        struct fm801 *chip = snd_pcm_substream_chip(substream);
 466        struct snd_pcm_runtime *runtime = substream->runtime;
 467
 468        chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
 469        chip->ply_count = snd_pcm_lib_period_bytes(substream);
 470        spin_lock_irq(&chip->reg_lock);
 471        chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
 472                             FM801_STEREO | FM801_RATE_MASK |
 473                             FM801_CHANNELS_MASK);
 474        if (snd_pcm_format_width(runtime->format) == 16)
 475                chip->ply_ctrl |= FM801_16BIT;
 476        if (runtime->channels > 1) {
 477                chip->ply_ctrl |= FM801_STEREO;
 478                if (runtime->channels == 4)
 479                        chip->ply_ctrl |= FM801_CHANNELS_4;
 480                else if (runtime->channels == 6)
 481                        chip->ply_ctrl |= FM801_CHANNELS_6;
 482        }
 483        chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 484        chip->ply_buf = 0;
 485        fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 486        fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
 487        chip->ply_buffer = runtime->dma_addr;
 488        chip->ply_pos = 0;
 489        fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
 490        fm801_writel(chip, PLY_BUF2,
 491                     chip->ply_buffer + (chip->ply_count % chip->ply_size));
 492        spin_unlock_irq(&chip->reg_lock);
 493        return 0;
 494}
 495
 496static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
 497{
 498        struct fm801 *chip = snd_pcm_substream_chip(substream);
 499        struct snd_pcm_runtime *runtime = substream->runtime;
 500
 501        chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
 502        chip->cap_count = snd_pcm_lib_period_bytes(substream);
 503        spin_lock_irq(&chip->reg_lock);
 504        chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
 505                             FM801_STEREO | FM801_RATE_MASK);
 506        if (snd_pcm_format_width(runtime->format) == 16)
 507                chip->cap_ctrl |= FM801_16BIT;
 508        if (runtime->channels > 1)
 509                chip->cap_ctrl |= FM801_STEREO;
 510        chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 511        chip->cap_buf = 0;
 512        fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 513        fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
 514        chip->cap_buffer = runtime->dma_addr;
 515        chip->cap_pos = 0;
 516        fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
 517        fm801_writel(chip, CAP_BUF2,
 518                     chip->cap_buffer + (chip->cap_count % chip->cap_size));
 519        spin_unlock_irq(&chip->reg_lock);
 520        return 0;
 521}
 522
 523static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
 524{
 525        struct fm801 *chip = snd_pcm_substream_chip(substream);
 526        size_t ptr;
 527
 528        if (!(chip->ply_ctrl & FM801_START))
 529                return 0;
 530        spin_lock(&chip->reg_lock);
 531        ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
 532        if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
 533                ptr += chip->ply_count;
 534                ptr %= chip->ply_size;
 535        }
 536        spin_unlock(&chip->reg_lock);
 537        return bytes_to_frames(substream->runtime, ptr);
 538}
 539
 540static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
 541{
 542        struct fm801 *chip = snd_pcm_substream_chip(substream);
 543        size_t ptr;
 544
 545        if (!(chip->cap_ctrl & FM801_START))
 546                return 0;
 547        spin_lock(&chip->reg_lock);
 548        ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
 549        if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
 550                ptr += chip->cap_count;
 551                ptr %= chip->cap_size;
 552        }
 553        spin_unlock(&chip->reg_lock);
 554        return bytes_to_frames(substream->runtime, ptr);
 555}
 556
 557static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
 558{
 559        struct fm801 *chip = dev_id;
 560        unsigned short status;
 561        unsigned int tmp;
 562
 563        status = fm801_readw(chip, IRQ_STATUS);
 564        status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
 565        if (! status)
 566                return IRQ_NONE;
 567        /* ack first */
 568        fm801_writew(chip, IRQ_STATUS, status);
 569        if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
 570                spin_lock(&chip->reg_lock);
 571                chip->ply_buf++;
 572                chip->ply_pos += chip->ply_count;
 573                chip->ply_pos %= chip->ply_size;
 574                tmp = chip->ply_pos + chip->ply_count;
 575                tmp %= chip->ply_size;
 576                if (chip->ply_buf & 1)
 577                        fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
 578                else
 579                        fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
 580                spin_unlock(&chip->reg_lock);
 581                snd_pcm_period_elapsed(chip->playback_substream);
 582        }
 583        if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
 584                spin_lock(&chip->reg_lock);
 585                chip->cap_buf++;
 586                chip->cap_pos += chip->cap_count;
 587                chip->cap_pos %= chip->cap_size;
 588                tmp = chip->cap_pos + chip->cap_count;
 589                tmp %= chip->cap_size;
 590                if (chip->cap_buf & 1)
 591                        fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
 592                else
 593                        fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
 594                spin_unlock(&chip->reg_lock);
 595                snd_pcm_period_elapsed(chip->capture_substream);
 596        }
 597        if (chip->rmidi && (status & FM801_IRQ_MPU))
 598                snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
 599        if (status & FM801_IRQ_VOLUME) {
 600                /* TODO */
 601        }
 602
 603        return IRQ_HANDLED;
 604}
 605
 606static const struct snd_pcm_hardware snd_fm801_playback =
 607{
 608        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 609                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 610                                 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 611                                 SNDRV_PCM_INFO_MMAP_VALID),
 612        .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 613        .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 614        .rate_min =             5500,
 615        .rate_max =             48000,
 616        .channels_min =         1,
 617        .channels_max =         2,
 618        .buffer_bytes_max =     (128*1024),
 619        .period_bytes_min =     64,
 620        .period_bytes_max =     (128*1024),
 621        .periods_min =          1,
 622        .periods_max =          1024,
 623        .fifo_size =            0,
 624};
 625
 626static const struct snd_pcm_hardware snd_fm801_capture =
 627{
 628        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 629                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 630                                 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 631                                 SNDRV_PCM_INFO_MMAP_VALID),
 632        .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 633        .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 634        .rate_min =             5500,
 635        .rate_max =             48000,
 636        .channels_min =         1,
 637        .channels_max =         2,
 638        .buffer_bytes_max =     (128*1024),
 639        .period_bytes_min =     64,
 640        .period_bytes_max =     (128*1024),
 641        .periods_min =          1,
 642        .periods_max =          1024,
 643        .fifo_size =            0,
 644};
 645
 646static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
 647{
 648        struct fm801 *chip = snd_pcm_substream_chip(substream);
 649        struct snd_pcm_runtime *runtime = substream->runtime;
 650        int err;
 651
 652        chip->playback_substream = substream;
 653        runtime->hw = snd_fm801_playback;
 654        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 655                                   &hw_constraints_rates);
 656        if (chip->multichannel) {
 657                runtime->hw.channels_max = 6;
 658                snd_pcm_hw_constraint_list(runtime, 0,
 659                                           SNDRV_PCM_HW_PARAM_CHANNELS,
 660                                           &hw_constraints_channels);
 661        }
 662        err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 663        if (err < 0)
 664                return err;
 665        return 0;
 666}
 667
 668static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
 669{
 670        struct fm801 *chip = snd_pcm_substream_chip(substream);
 671        struct snd_pcm_runtime *runtime = substream->runtime;
 672        int err;
 673
 674        chip->capture_substream = substream;
 675        runtime->hw = snd_fm801_capture;
 676        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 677                                   &hw_constraints_rates);
 678        err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
 679        if (err < 0)
 680                return err;
 681        return 0;
 682}
 683
 684static int snd_fm801_playback_close(struct snd_pcm_substream *substream)
 685{
 686        struct fm801 *chip = snd_pcm_substream_chip(substream);
 687
 688        chip->playback_substream = NULL;
 689        return 0;
 690}
 691
 692static int snd_fm801_capture_close(struct snd_pcm_substream *substream)
 693{
 694        struct fm801 *chip = snd_pcm_substream_chip(substream);
 695
 696        chip->capture_substream = NULL;
 697        return 0;
 698}
 699
 700static const struct snd_pcm_ops snd_fm801_playback_ops = {
 701        .open =         snd_fm801_playback_open,
 702        .close =        snd_fm801_playback_close,
 703        .prepare =      snd_fm801_playback_prepare,
 704        .trigger =      snd_fm801_playback_trigger,
 705        .pointer =      snd_fm801_playback_pointer,
 706};
 707
 708static const struct snd_pcm_ops snd_fm801_capture_ops = {
 709        .open =         snd_fm801_capture_open,
 710        .close =        snd_fm801_capture_close,
 711        .prepare =      snd_fm801_capture_prepare,
 712        .trigger =      snd_fm801_capture_trigger,
 713        .pointer =      snd_fm801_capture_pointer,
 714};
 715
 716static int snd_fm801_pcm(struct fm801 *chip, int device)
 717{
 718        struct pci_dev *pdev = to_pci_dev(chip->dev);
 719        struct snd_pcm *pcm;
 720        int err;
 721
 722        err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm);
 723        if (err < 0)
 724                return err;
 725
 726        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
 727        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
 728
 729        pcm->private_data = chip;
 730        pcm->info_flags = 0;
 731        strcpy(pcm->name, "FM801");
 732        chip->pcm = pcm;
 733
 734        snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &pdev->dev,
 735                                       chip->multichannel ? 128*1024 : 64*1024, 128*1024);
 736
 737        return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 738                                     snd_pcm_alt_chmaps,
 739                                     chip->multichannel ? 6 : 2, 0,
 740                                     NULL);
 741}
 742
 743/*
 744 *  TEA5757 radio
 745 */
 746
 747#ifdef CONFIG_SND_FM801_TEA575X_BOOL
 748
 749/* GPIO to TEA575x maps */
 750struct snd_fm801_tea575x_gpio {
 751        u8 data, clk, wren, most;
 752        char *name;
 753};
 754
 755static const struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
 756        { .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
 757        { .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
 758        { .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
 759};
 760
 761#define get_tea575x_gpio(chip) \
 762        (&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
 763
 764static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
 765{
 766        struct fm801 *chip = tea->private_data;
 767        unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 768        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 769
 770        reg &= ~(FM801_GPIO_GP(gpio.data) |
 771                 FM801_GPIO_GP(gpio.clk) |
 772                 FM801_GPIO_GP(gpio.wren));
 773
 774        reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
 775        reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
 776        /* WRITE_ENABLE is inverted */
 777        reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
 778
 779        fm801_writew(chip, GPIO_CTRL, reg);
 780}
 781
 782static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
 783{
 784        struct fm801 *chip = tea->private_data;
 785        unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 786        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 787        u8 ret;
 788
 789        ret = 0;
 790        if (reg & FM801_GPIO_GP(gpio.data))
 791                ret |= TEA575X_DATA;
 792        if (reg & FM801_GPIO_GP(gpio.most))
 793                ret |= TEA575X_MOST;
 794        return ret;
 795}
 796
 797static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
 798{
 799        struct fm801 *chip = tea->private_data;
 800        unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 801        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 802
 803        /* use GPIO lines and set write enable bit */
 804        reg |= FM801_GPIO_GS(gpio.data) |
 805               FM801_GPIO_GS(gpio.wren) |
 806               FM801_GPIO_GS(gpio.clk) |
 807               FM801_GPIO_GS(gpio.most);
 808        if (output) {
 809                /* all of lines are in the write direction */
 810                /* clear data and clock lines */
 811                reg &= ~(FM801_GPIO_GD(gpio.data) |
 812                         FM801_GPIO_GD(gpio.wren) |
 813                         FM801_GPIO_GD(gpio.clk) |
 814                         FM801_GPIO_GP(gpio.data) |
 815                         FM801_GPIO_GP(gpio.clk) |
 816                         FM801_GPIO_GP(gpio.wren));
 817        } else {
 818                /* use GPIO lines, set data direction to input */
 819                reg |= FM801_GPIO_GD(gpio.data) |
 820                       FM801_GPIO_GD(gpio.most) |
 821                       FM801_GPIO_GP(gpio.data) |
 822                       FM801_GPIO_GP(gpio.most) |
 823                       FM801_GPIO_GP(gpio.wren);
 824                /* all of lines are in the write direction, except data */
 825                /* clear data, write enable and clock lines */
 826                reg &= ~(FM801_GPIO_GD(gpio.wren) |
 827                         FM801_GPIO_GD(gpio.clk) |
 828                         FM801_GPIO_GP(gpio.clk));
 829        }
 830
 831        fm801_writew(chip, GPIO_CTRL, reg);
 832}
 833
 834static const struct snd_tea575x_ops snd_fm801_tea_ops = {
 835        .set_pins = snd_fm801_tea575x_set_pins,
 836        .get_pins = snd_fm801_tea575x_get_pins,
 837        .set_direction = snd_fm801_tea575x_set_direction,
 838};
 839#endif
 840
 841/*
 842 *  Mixer routines
 843 */
 844
 845#define FM801_SINGLE(xname, reg, shift, mask, invert) \
 846{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
 847  .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
 848  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 849
 850static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
 851                                 struct snd_ctl_elem_info *uinfo)
 852{
 853        int mask = (kcontrol->private_value >> 16) & 0xff;
 854
 855        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 856        uinfo->count = 1;
 857        uinfo->value.integer.min = 0;
 858        uinfo->value.integer.max = mask;
 859        return 0;
 860}
 861
 862static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
 863                                struct snd_ctl_elem_value *ucontrol)
 864{
 865        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 866        int reg = kcontrol->private_value & 0xff;
 867        int shift = (kcontrol->private_value >> 8) & 0xff;
 868        int mask = (kcontrol->private_value >> 16) & 0xff;
 869        int invert = (kcontrol->private_value >> 24) & 0xff;
 870        long *value = ucontrol->value.integer.value;
 871
 872        value[0] = (fm801_ioread16(chip, reg) >> shift) & mask;
 873        if (invert)
 874                value[0] = mask - value[0];
 875        return 0;
 876}
 877
 878static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
 879                                struct snd_ctl_elem_value *ucontrol)
 880{
 881        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 882        int reg = kcontrol->private_value & 0xff;
 883        int shift = (kcontrol->private_value >> 8) & 0xff;
 884        int mask = (kcontrol->private_value >> 16) & 0xff;
 885        int invert = (kcontrol->private_value >> 24) & 0xff;
 886        unsigned short val;
 887
 888        val = (ucontrol->value.integer.value[0] & mask);
 889        if (invert)
 890                val = mask - val;
 891        return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
 892}
 893
 894#define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 895{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
 896  .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 897  .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 898#define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 899{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 900  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 901  .name = xname, .info = snd_fm801_info_double, \
 902  .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 903  .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 904  .tlv = { .p = (xtlv) } }
 905
 906static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
 907                                 struct snd_ctl_elem_info *uinfo)
 908{
 909        int mask = (kcontrol->private_value >> 16) & 0xff;
 910
 911        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 912        uinfo->count = 2;
 913        uinfo->value.integer.min = 0;
 914        uinfo->value.integer.max = mask;
 915        return 0;
 916}
 917
 918static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
 919                                struct snd_ctl_elem_value *ucontrol)
 920{
 921        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 922        int reg = kcontrol->private_value & 0xff;
 923        int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 924        int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 925        int mask = (kcontrol->private_value >> 16) & 0xff;
 926        int invert = (kcontrol->private_value >> 24) & 0xff;
 927        long *value = ucontrol->value.integer.value;
 928
 929        spin_lock_irq(&chip->reg_lock);
 930        value[0] = (fm801_ioread16(chip, reg) >> shift_left) & mask;
 931        value[1] = (fm801_ioread16(chip, reg) >> shift_right) & mask;
 932        spin_unlock_irq(&chip->reg_lock);
 933        if (invert) {
 934                value[0] = mask - value[0];
 935                value[1] = mask - value[1];
 936        }
 937        return 0;
 938}
 939
 940static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
 941                                struct snd_ctl_elem_value *ucontrol)
 942{
 943        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 944        int reg = kcontrol->private_value & 0xff;
 945        int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 946        int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 947        int mask = (kcontrol->private_value >> 16) & 0xff;
 948        int invert = (kcontrol->private_value >> 24) & 0xff;
 949        unsigned short val1, val2;
 950 
 951        val1 = ucontrol->value.integer.value[0] & mask;
 952        val2 = ucontrol->value.integer.value[1] & mask;
 953        if (invert) {
 954                val1 = mask - val1;
 955                val2 = mask - val2;
 956        }
 957        return snd_fm801_update_bits(chip, reg,
 958                                     (mask << shift_left) | (mask << shift_right),
 959                                     (val1 << shift_left ) | (val2 << shift_right));
 960}
 961
 962static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
 963                              struct snd_ctl_elem_info *uinfo)
 964{
 965        static const char * const texts[5] = {
 966                "AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
 967        };
 968 
 969        return snd_ctl_enum_info(uinfo, 1, 5, texts);
 970}
 971
 972static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
 973                             struct snd_ctl_elem_value *ucontrol)
 974{
 975        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 976        unsigned short val;
 977 
 978        val = fm801_readw(chip, REC_SRC) & 7;
 979        if (val > 4)
 980                val = 4;
 981        ucontrol->value.enumerated.item[0] = val;
 982        return 0;
 983}
 984
 985static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
 986                             struct snd_ctl_elem_value *ucontrol)
 987{
 988        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 989        unsigned short val;
 990 
 991        val = ucontrol->value.enumerated.item[0];
 992        if (val > 4)
 993                return -EINVAL;
 994        return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
 995}
 996
 997static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
 998
 999#define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
1000
1001static const struct snd_kcontrol_new snd_fm801_controls[] = {
1002FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
1003                 db_scale_dsp),
1004FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
1005FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
1006                 db_scale_dsp),
1007FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
1008FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
1009                 db_scale_dsp),
1010FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
1011{
1012        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1013        .name = "Digital Capture Source",
1014        .info = snd_fm801_info_mux,
1015        .get = snd_fm801_get_mux,
1016        .put = snd_fm801_put_mux,
1017}
1018};
1019
1020#define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
1021
1022static const struct snd_kcontrol_new snd_fm801_controls_multi[] = {
1023FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
1024FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
1025FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
1026FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
1027FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
1028FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1029};
1030
1031static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1032{
1033        struct fm801 *chip = bus->private_data;
1034        chip->ac97_bus = NULL;
1035}
1036
1037static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1038{
1039        struct fm801 *chip = ac97->private_data;
1040        if (ac97->num == 0) {
1041                chip->ac97 = NULL;
1042        } else {
1043                chip->ac97_sec = NULL;
1044        }
1045}
1046
1047static int snd_fm801_mixer(struct fm801 *chip)
1048{
1049        struct snd_ac97_template ac97;
1050        unsigned int i;
1051        int err;
1052        static const struct snd_ac97_bus_ops ops = {
1053                .write = snd_fm801_codec_write,
1054                .read = snd_fm801_codec_read,
1055        };
1056
1057        err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus);
1058        if (err < 0)
1059                return err;
1060        chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1061
1062        memset(&ac97, 0, sizeof(ac97));
1063        ac97.private_data = chip;
1064        ac97.private_free = snd_fm801_mixer_free_ac97;
1065        err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97);
1066        if (err < 0)
1067                return err;
1068        if (chip->secondary) {
1069                ac97.num = 1;
1070                ac97.addr = chip->secondary_addr;
1071                err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec);
1072                if (err < 0)
1073                        return err;
1074        }
1075        for (i = 0; i < FM801_CONTROLS; i++) {
1076                err = snd_ctl_add(chip->card,
1077                        snd_ctl_new1(&snd_fm801_controls[i], chip));
1078                if (err < 0)
1079                        return err;
1080        }
1081        if (chip->multichannel) {
1082                for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1083                        err = snd_ctl_add(chip->card,
1084                                snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1085                        if (err < 0)
1086                                return err;
1087                }
1088        }
1089        return 0;
1090}
1091
1092/*
1093 *  initialization routines
1094 */
1095
1096static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1097                          unsigned short reg, unsigned long waits)
1098{
1099        unsigned long timeout = jiffies + waits;
1100
1101        fm801_writew(chip, AC97_CMD,
1102                     reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1103        udelay(5);
1104        do {
1105                if ((fm801_readw(chip, AC97_CMD) &
1106                     (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1107                        return 0;
1108                schedule_timeout_uninterruptible(1);
1109        } while (time_after(timeout, jiffies));
1110        return -EIO;
1111}
1112
1113static int reset_codec(struct fm801 *chip)
1114{
1115        /* codec cold reset + AC'97 warm reset */
1116        fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1117        fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1118        udelay(100);
1119        fm801_writew(chip, CODEC_CTRL, 0);
1120
1121        return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1122}
1123
1124static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1125{
1126        unsigned short cmdw;
1127
1128        if (chip->multichannel) {
1129                if (chip->secondary_addr) {
1130                        wait_for_codec(chip, chip->secondary_addr,
1131                                       AC97_VENDOR_ID1, msecs_to_jiffies(50));
1132                } else {
1133                        /* my card has the secondary codec */
1134                        /* at address #3, so the loop is inverted */
1135                        int i;
1136                        for (i = 3; i > 0; i--) {
1137                                if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1138                                                     msecs_to_jiffies(50))) {
1139                                        cmdw = fm801_readw(chip, AC97_DATA);
1140                                        if (cmdw != 0xffff && cmdw != 0) {
1141                                                chip->secondary = 1;
1142                                                chip->secondary_addr = i;
1143                                                break;
1144                                        }
1145                                }
1146                        }
1147                }
1148
1149                /* the recovery phase, it seems that probing for non-existing codec might */
1150                /* cause timeout problems */
1151                wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1152        }
1153}
1154
1155static void snd_fm801_chip_init(struct fm801 *chip)
1156{
1157        unsigned short cmdw;
1158
1159        /* init volume */
1160        fm801_writew(chip, PCM_VOL, 0x0808);
1161        fm801_writew(chip, FM_VOL, 0x9f1f);
1162        fm801_writew(chip, I2S_VOL, 0x8808);
1163
1164        /* I2S control - I2S mode */
1165        fm801_writew(chip, I2S_MODE, 0x0003);
1166
1167        /* interrupt setup */
1168        cmdw = fm801_readw(chip, IRQ_MASK);
1169        if (chip->irq < 0)
1170                cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
1171        else
1172                cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
1173        fm801_writew(chip, IRQ_MASK, cmdw);
1174
1175        /* interrupt clear */
1176        fm801_writew(chip, IRQ_STATUS,
1177                     FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1178}
1179
1180static int snd_fm801_free(struct fm801 *chip)
1181{
1182        unsigned short cmdw;
1183
1184        if (chip->irq < 0)
1185                goto __end_hw;
1186
1187        /* interrupt setup - mask everything */
1188        cmdw = fm801_readw(chip, IRQ_MASK);
1189        cmdw |= 0x00c3;
1190        fm801_writew(chip, IRQ_MASK, cmdw);
1191
1192        devm_free_irq(chip->dev, chip->irq, chip);
1193
1194      __end_hw:
1195#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1196        if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1197                snd_tea575x_exit(&chip->tea);
1198                v4l2_device_unregister(&chip->v4l2_dev);
1199        }
1200#endif
1201        return 0;
1202}
1203
1204static int snd_fm801_dev_free(struct snd_device *device)
1205{
1206        struct fm801 *chip = device->device_data;
1207        return snd_fm801_free(chip);
1208}
1209
1210static int snd_fm801_create(struct snd_card *card,
1211                            struct pci_dev *pci,
1212                            int tea575x_tuner,
1213                            int radio_nr,
1214                            struct fm801 **rchip)
1215{
1216        struct fm801 *chip;
1217        int err;
1218        static const struct snd_device_ops ops = {
1219                .dev_free =     snd_fm801_dev_free,
1220        };
1221
1222        *rchip = NULL;
1223        err = pcim_enable_device(pci);
1224        if (err < 0)
1225                return err;
1226        chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1227        if (chip == NULL)
1228                return -ENOMEM;
1229        spin_lock_init(&chip->reg_lock);
1230        chip->card = card;
1231        chip->dev = &pci->dev;
1232        chip->irq = -1;
1233        chip->tea575x_tuner = tea575x_tuner;
1234        err = pci_request_regions(pci, "FM801");
1235        if (err < 0)
1236                return err;
1237        chip->port = pci_resource_start(pci, 0);
1238
1239        if (pci->revision >= 0xb1)      /* FM801-AU */
1240                chip->multichannel = 1;
1241
1242        if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1243                if (reset_codec(chip) < 0) {
1244                        dev_info(chip->card->dev,
1245                                 "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1246                        chip->tea575x_tuner = 3 | TUNER_ONLY;
1247                } else {
1248                        snd_fm801_chip_multichannel_init(chip);
1249                }
1250        }
1251
1252        if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1253                if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1254                                IRQF_SHARED, KBUILD_MODNAME, chip)) {
1255                        dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1256                        snd_fm801_free(chip);
1257                        return -EBUSY;
1258                }
1259                chip->irq = pci->irq;
1260                card->sync_irq = chip->irq;
1261                pci_set_master(pci);
1262        }
1263
1264        snd_fm801_chip_init(chip);
1265
1266        err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1267        if (err < 0) {
1268                snd_fm801_free(chip);
1269                return err;
1270        }
1271
1272#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1273        err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1274        if (err < 0) {
1275                snd_fm801_free(chip);
1276                return err;
1277        }
1278        chip->tea.v4l2_dev = &chip->v4l2_dev;
1279        chip->tea.radio_nr = radio_nr;
1280        chip->tea.private_data = chip;
1281        chip->tea.ops = &snd_fm801_tea_ops;
1282        sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1283        if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1284            (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1285                if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1286                        dev_err(card->dev, "TEA575x radio not found\n");
1287                        snd_fm801_free(chip);
1288                        return -ENODEV;
1289                }
1290        } else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1291                unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1292
1293                /* autodetect tuner connection */
1294                for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1295                        chip->tea575x_tuner = tea575x_tuner;
1296                        if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1297                                dev_info(card->dev,
1298                                         "detected TEA575x radio type %s\n",
1299                                           get_tea575x_gpio(chip)->name);
1300                                break;
1301                        }
1302                }
1303                if (tea575x_tuner == 4) {
1304                        dev_err(card->dev, "TEA575x radio not found\n");
1305                        chip->tea575x_tuner = TUNER_DISABLED;
1306                }
1307
1308                chip->tea575x_tuner |= tuner_only;
1309        }
1310        if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1311                strscpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1312                        sizeof(chip->tea.card));
1313        }
1314#endif
1315
1316        *rchip = chip;
1317        return 0;
1318}
1319
1320static int snd_card_fm801_probe(struct pci_dev *pci,
1321                                const struct pci_device_id *pci_id)
1322{
1323        static int dev;
1324        struct snd_card *card;
1325        struct fm801 *chip;
1326        struct snd_opl3 *opl3;
1327        int err;
1328
1329        if (dev >= SNDRV_CARDS)
1330                return -ENODEV;
1331        if (!enable[dev]) {
1332                dev++;
1333                return -ENOENT;
1334        }
1335
1336        err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1337                           0, &card);
1338        if (err < 0)
1339                return err;
1340        err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip);
1341        if (err < 0) {
1342                snd_card_free(card);
1343                return err;
1344        }
1345        card->private_data = chip;
1346
1347        strcpy(card->driver, "FM801");
1348        strcpy(card->shortname, "ForteMedia FM801-");
1349        strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1350        sprintf(card->longname, "%s at 0x%lx, irq %i",
1351                card->shortname, chip->port, chip->irq);
1352
1353        if (chip->tea575x_tuner & TUNER_ONLY)
1354                goto __fm801_tuner_only;
1355
1356        err = snd_fm801_pcm(chip, 0);
1357        if (err < 0) {
1358                snd_card_free(card);
1359                return err;
1360        }
1361        err = snd_fm801_mixer(chip);
1362        if (err < 0) {
1363                snd_card_free(card);
1364                return err;
1365        }
1366        err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1367                                  chip->port + FM801_MPU401_DATA,
1368                                  MPU401_INFO_INTEGRATED |
1369                                  MPU401_INFO_IRQ_HOOK,
1370                                  -1, &chip->rmidi);
1371        if (err < 0) {
1372                snd_card_free(card);
1373                return err;
1374        }
1375        err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1376                              chip->port + FM801_OPL3_BANK1,
1377                              OPL3_HW_OPL3_FM801, 1, &opl3);
1378        if (err < 0) {
1379                snd_card_free(card);
1380                return err;
1381        }
1382        err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
1383        if (err < 0) {
1384                snd_card_free(card);
1385                return err;
1386        }
1387
1388      __fm801_tuner_only:
1389        err = snd_card_register(card);
1390        if (err < 0) {
1391                snd_card_free(card);
1392                return err;
1393        }
1394        pci_set_drvdata(pci, card);
1395        dev++;
1396        return 0;
1397}
1398
1399static void snd_card_fm801_remove(struct pci_dev *pci)
1400{
1401        snd_card_free(pci_get_drvdata(pci));
1402}
1403
1404#ifdef CONFIG_PM_SLEEP
1405static const unsigned char saved_regs[] = {
1406        FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1407        FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1408        FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1409        FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1410};
1411
1412static int snd_fm801_suspend(struct device *dev)
1413{
1414        struct snd_card *card = dev_get_drvdata(dev);
1415        struct fm801 *chip = card->private_data;
1416        int i;
1417
1418        snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1419
1420        for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1421                chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1422
1423        if (chip->tea575x_tuner & TUNER_ONLY) {
1424                /* FIXME: tea575x suspend */
1425        } else {
1426                snd_ac97_suspend(chip->ac97);
1427                snd_ac97_suspend(chip->ac97_sec);
1428        }
1429
1430        return 0;
1431}
1432
1433static int snd_fm801_resume(struct device *dev)
1434{
1435        struct snd_card *card = dev_get_drvdata(dev);
1436        struct fm801 *chip = card->private_data;
1437        int i;
1438
1439        if (chip->tea575x_tuner & TUNER_ONLY) {
1440                snd_fm801_chip_init(chip);
1441        } else {
1442                reset_codec(chip);
1443                snd_fm801_chip_multichannel_init(chip);
1444                snd_fm801_chip_init(chip);
1445                snd_ac97_resume(chip->ac97);
1446                snd_ac97_resume(chip->ac97_sec);
1447        }
1448
1449        for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1450                fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1451
1452#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1453        if (!(chip->tea575x_tuner & TUNER_DISABLED))
1454                snd_tea575x_set_freq(&chip->tea);
1455#endif
1456
1457        snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1458        return 0;
1459}
1460
1461static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1462#define SND_FM801_PM_OPS        &snd_fm801_pm
1463#else
1464#define SND_FM801_PM_OPS        NULL
1465#endif /* CONFIG_PM_SLEEP */
1466
1467static struct pci_driver fm801_driver = {
1468        .name = KBUILD_MODNAME,
1469        .id_table = snd_fm801_ids,
1470        .probe = snd_card_fm801_probe,
1471        .remove = snd_card_fm801_remove,
1472        .driver = {
1473                .pm = SND_FM801_PM_OPS,
1474        },
1475};
1476
1477module_pci_driver(fm801_driver);
1478