linux/sound/pci/fm801.c
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   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");
  29MODULE_SUPPORTED_DEVICE("{{ForteMedia,FM801},"
  30                "{Genius,SoundMaker Live 5.1}}");
  31
  32static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  33static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  34static 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 */
  43static int tea575x_tuner[SNDRV_CARDS];
  44static int radio_nr[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
  45
  46module_param_array(index, int, NULL, 0444);
  47MODULE_PARM_DESC(index, "Index value for the FM801 soundcard.");
  48module_param_array(id, charp, NULL, 0444);
  49MODULE_PARM_DESC(id, "ID string for the FM801 soundcard.");
  50module_param_array(enable, bool, NULL, 0444);
  51MODULE_PARM_DESC(enable, "Enable FM801 soundcard.");
  52module_param_array(tea575x_tuner, int, NULL, 0444);
  53MODULE_PARM_DESC(tea575x_tuner, "TEA575x tuner access method (0 = auto, 1 = SF256-PCS, 2=SF256-PCP, 3=SF64-PCR, 8=disable, +16=tuner-only).");
  54module_param_array(radio_nr, int, NULL, 0444);
  55MODULE_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 * @dev:                device for this chio
 148 * @irq:                irq number
 149 * @port:               I/O port number
 150 * @multichannel:       multichannel support
 151 * @secondary:          secondary codec
 152 * @secondary_addr:     address of the secondary codec
 153 * @tea575x_tuner:      tuner access method & flags
 154 * @ply_ctrl:           playback control
 155 * @cap_ctrl:           capture control
 156 * @ply_buffer:         playback buffer
 157 * @ply_buf:            playback buffer index
 158 * @ply_count:          playback buffer count
 159 * @ply_size:           playback buffer size
 160 * @ply_pos:            playback position
 161 * @cap_buffer:         capture buffer
 162 * @cap_buf:            capture buffer index
 163 * @cap_count:          capture buffer count
 164 * @cap_size:           capture buffer size
 165 * @cap_pos:            capture position
 166 * @ac97_bus:           ac97 bus handle
 167 * @ac97:               ac97 handle
 168 * @ac97_sec:           ac97 secondary handle
 169 * @card:               ALSA card
 170 * @pcm:                PCM devices
 171 * @rmidi:              rmidi device
 172 * @playback_substream: substream for playback
 173 * @capture_substream:  substream for capture
 174 * @p_dma_size:         playback DMA size
 175 * @c_dma_size:         capture DMA size
 176 * @reg_lock:           lock
 177 * @proc_entry:         /proc entry
 178 * @v4l2_dev:           v4l2 device
 179 * @tea:                tea575a structure
 180 * @saved_regs:         context saved during suspend
 181 */
 182struct fm801 {
 183        struct device *dev;
 184        int irq;
 185
 186        unsigned long port;
 187        unsigned int multichannel: 1,
 188                     secondary: 1;
 189        unsigned char secondary_addr;
 190        unsigned int tea575x_tuner;
 191
 192        unsigned short ply_ctrl;
 193        unsigned short cap_ctrl;
 194
 195        unsigned long ply_buffer;
 196        unsigned int ply_buf;
 197        unsigned int ply_count;
 198        unsigned int ply_size;
 199        unsigned int ply_pos;
 200
 201        unsigned long cap_buffer;
 202        unsigned int cap_buf;
 203        unsigned int cap_count;
 204        unsigned int cap_size;
 205        unsigned int cap_pos;
 206
 207        struct snd_ac97_bus *ac97_bus;
 208        struct snd_ac97 *ac97;
 209        struct snd_ac97 *ac97_sec;
 210
 211        struct snd_card *card;
 212        struct snd_pcm *pcm;
 213        struct snd_rawmidi *rmidi;
 214        struct snd_pcm_substream *playback_substream;
 215        struct snd_pcm_substream *capture_substream;
 216        unsigned int p_dma_size;
 217        unsigned int c_dma_size;
 218
 219        spinlock_t reg_lock;
 220        struct snd_info_entry *proc_entry;
 221
 222#ifdef CONFIG_SND_FM801_TEA575X_BOOL
 223        struct v4l2_device v4l2_dev;
 224        struct snd_tea575x tea;
 225#endif
 226
 227#ifdef CONFIG_PM_SLEEP
 228        u16 saved_regs[0x20];
 229#endif
 230};
 231
 232/*
 233 * IO accessors
 234 */
 235
 236static inline void fm801_iowrite16(struct fm801 *chip, unsigned short offset, u16 value)
 237{
 238        outw(value, chip->port + offset);
 239}
 240
 241static inline u16 fm801_ioread16(struct fm801 *chip, unsigned short offset)
 242{
 243        return inw(chip->port + offset);
 244}
 245
 246static const struct pci_device_id snd_fm801_ids[] = {
 247        { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* FM801 */
 248        { 0x5213, 0x0510, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0, },   /* Gallant Odyssey Sound 4 */
 249        { 0, }
 250};
 251
 252MODULE_DEVICE_TABLE(pci, snd_fm801_ids);
 253
 254/*
 255 *  common I/O routines
 256 */
 257
 258static bool fm801_ac97_is_ready(struct fm801 *chip, unsigned int iterations)
 259{
 260        unsigned int idx;
 261
 262        for (idx = 0; idx < iterations; idx++) {
 263                if (!(fm801_readw(chip, AC97_CMD) & FM801_AC97_BUSY))
 264                        return true;
 265                udelay(10);
 266        }
 267        return false;
 268}
 269
 270static bool fm801_ac97_is_valid(struct fm801 *chip, unsigned int iterations)
 271{
 272        unsigned int idx;
 273
 274        for (idx = 0; idx < iterations; idx++) {
 275                if (fm801_readw(chip, AC97_CMD) & FM801_AC97_VALID)
 276                        return true;
 277                udelay(10);
 278        }
 279        return false;
 280}
 281
 282static int snd_fm801_update_bits(struct fm801 *chip, unsigned short reg,
 283                                 unsigned short mask, unsigned short value)
 284{
 285        int change;
 286        unsigned long flags;
 287        unsigned short old, new;
 288
 289        spin_lock_irqsave(&chip->reg_lock, flags);
 290        old = fm801_ioread16(chip, reg);
 291        new = (old & ~mask) | value;
 292        change = old != new;
 293        if (change)
 294                fm801_iowrite16(chip, reg, new);
 295        spin_unlock_irqrestore(&chip->reg_lock, flags);
 296        return change;
 297}
 298
 299static void snd_fm801_codec_write(struct snd_ac97 *ac97,
 300                                  unsigned short reg,
 301                                  unsigned short val)
 302{
 303        struct fm801 *chip = ac97->private_data;
 304
 305        /*
 306         *  Wait until the codec interface is not ready..
 307         */
 308        if (!fm801_ac97_is_ready(chip, 100)) {
 309                dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
 310                return;
 311        }
 312
 313        /* write data and address */
 314        fm801_writew(chip, AC97_DATA, val);
 315        fm801_writew(chip, AC97_CMD, reg | (ac97->addr << FM801_AC97_ADDR_SHIFT));
 316        /*
 317         *  Wait until the write command is not completed..
 318         */
 319        if (!fm801_ac97_is_ready(chip, 1000))
 320                dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
 321                ac97->num);
 322}
 323
 324static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 325{
 326        struct fm801 *chip = ac97->private_data;
 327
 328        /*
 329         *  Wait until the codec interface is not ready..
 330         */
 331        if (!fm801_ac97_is_ready(chip, 100)) {
 332                dev_err(chip->card->dev, "AC'97 interface is busy (1)\n");
 333                return 0;
 334        }
 335
 336        /* read command */
 337        fm801_writew(chip, AC97_CMD,
 338                     reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
 339        if (!fm801_ac97_is_ready(chip, 100)) {
 340                dev_err(chip->card->dev, "AC'97 interface #%d is busy (2)\n",
 341                        ac97->num);
 342                return 0;
 343        }
 344
 345        if (!fm801_ac97_is_valid(chip, 1000)) {
 346                dev_err(chip->card->dev,
 347                        "AC'97 interface #%d is not valid (2)\n", ac97->num);
 348                return 0;
 349        }
 350
 351        return fm801_readw(chip, AC97_DATA);
 352}
 353
 354static const unsigned int rates[] = {
 355  5500,  8000,  9600, 11025,
 356  16000, 19200, 22050, 32000,
 357  38400, 44100, 48000
 358};
 359
 360static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
 361        .count = ARRAY_SIZE(rates),
 362        .list = rates,
 363        .mask = 0,
 364};
 365
 366static const unsigned int channels[] = {
 367  2, 4, 6
 368};
 369
 370static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
 371        .count = ARRAY_SIZE(channels),
 372        .list = channels,
 373        .mask = 0,
 374};
 375
 376/*
 377 *  Sample rate routines
 378 */
 379
 380static unsigned short snd_fm801_rate_bits(unsigned int rate)
 381{
 382        unsigned int idx;
 383
 384        for (idx = 0; idx < ARRAY_SIZE(rates); idx++)
 385                if (rates[idx] == rate)
 386                        return idx;
 387        snd_BUG();
 388        return ARRAY_SIZE(rates) - 1;
 389}
 390
 391/*
 392 *  PCM part
 393 */
 394
 395static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
 396                                      int cmd)
 397{
 398        struct fm801 *chip = snd_pcm_substream_chip(substream);
 399
 400        spin_lock(&chip->reg_lock);
 401        switch (cmd) {
 402        case SNDRV_PCM_TRIGGER_START:
 403                chip->ply_ctrl &= ~(FM801_BUF1_LAST |
 404                                     FM801_BUF2_LAST |
 405                                     FM801_PAUSE);
 406                chip->ply_ctrl |= FM801_START |
 407                                   FM801_IMMED_STOP;
 408                break;
 409        case SNDRV_PCM_TRIGGER_STOP:
 410                chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
 411                break;
 412        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 413        case SNDRV_PCM_TRIGGER_SUSPEND:
 414                chip->ply_ctrl |= FM801_PAUSE;
 415                break;
 416        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 417        case SNDRV_PCM_TRIGGER_RESUME:
 418                chip->ply_ctrl &= ~FM801_PAUSE;
 419                break;
 420        default:
 421                spin_unlock(&chip->reg_lock);
 422                snd_BUG();
 423                return -EINVAL;
 424        }
 425        fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 426        spin_unlock(&chip->reg_lock);
 427        return 0;
 428}
 429
 430static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
 431                                     int cmd)
 432{
 433        struct fm801 *chip = snd_pcm_substream_chip(substream);
 434
 435        spin_lock(&chip->reg_lock);
 436        switch (cmd) {
 437        case SNDRV_PCM_TRIGGER_START:
 438                chip->cap_ctrl &= ~(FM801_BUF1_LAST |
 439                                     FM801_BUF2_LAST |
 440                                     FM801_PAUSE);
 441                chip->cap_ctrl |= FM801_START |
 442                                   FM801_IMMED_STOP;
 443                break;
 444        case SNDRV_PCM_TRIGGER_STOP:
 445                chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
 446                break;
 447        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 448        case SNDRV_PCM_TRIGGER_SUSPEND:
 449                chip->cap_ctrl |= FM801_PAUSE;
 450                break;
 451        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 452        case SNDRV_PCM_TRIGGER_RESUME:
 453                chip->cap_ctrl &= ~FM801_PAUSE;
 454                break;
 455        default:
 456                spin_unlock(&chip->reg_lock);
 457                snd_BUG();
 458                return -EINVAL;
 459        }
 460        fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 461        spin_unlock(&chip->reg_lock);
 462        return 0;
 463}
 464
 465static int snd_fm801_playback_prepare(struct snd_pcm_substream *substream)
 466{
 467        struct fm801 *chip = snd_pcm_substream_chip(substream);
 468        struct snd_pcm_runtime *runtime = substream->runtime;
 469
 470        chip->ply_size = snd_pcm_lib_buffer_bytes(substream);
 471        chip->ply_count = snd_pcm_lib_period_bytes(substream);
 472        spin_lock_irq(&chip->reg_lock);
 473        chip->ply_ctrl &= ~(FM801_START | FM801_16BIT |
 474                             FM801_STEREO | FM801_RATE_MASK |
 475                             FM801_CHANNELS_MASK);
 476        if (snd_pcm_format_width(runtime->format) == 16)
 477                chip->ply_ctrl |= FM801_16BIT;
 478        if (runtime->channels > 1) {
 479                chip->ply_ctrl |= FM801_STEREO;
 480                if (runtime->channels == 4)
 481                        chip->ply_ctrl |= FM801_CHANNELS_4;
 482                else if (runtime->channels == 6)
 483                        chip->ply_ctrl |= FM801_CHANNELS_6;
 484        }
 485        chip->ply_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 486        chip->ply_buf = 0;
 487        fm801_writew(chip, PLY_CTRL, chip->ply_ctrl);
 488        fm801_writew(chip, PLY_COUNT, chip->ply_count - 1);
 489        chip->ply_buffer = runtime->dma_addr;
 490        chip->ply_pos = 0;
 491        fm801_writel(chip, PLY_BUF1, chip->ply_buffer);
 492        fm801_writel(chip, PLY_BUF2,
 493                     chip->ply_buffer + (chip->ply_count % chip->ply_size));
 494        spin_unlock_irq(&chip->reg_lock);
 495        return 0;
 496}
 497
 498static int snd_fm801_capture_prepare(struct snd_pcm_substream *substream)
 499{
 500        struct fm801 *chip = snd_pcm_substream_chip(substream);
 501        struct snd_pcm_runtime *runtime = substream->runtime;
 502
 503        chip->cap_size = snd_pcm_lib_buffer_bytes(substream);
 504        chip->cap_count = snd_pcm_lib_period_bytes(substream);
 505        spin_lock_irq(&chip->reg_lock);
 506        chip->cap_ctrl &= ~(FM801_START | FM801_16BIT |
 507                             FM801_STEREO | FM801_RATE_MASK);
 508        if (snd_pcm_format_width(runtime->format) == 16)
 509                chip->cap_ctrl |= FM801_16BIT;
 510        if (runtime->channels > 1)
 511                chip->cap_ctrl |= FM801_STEREO;
 512        chip->cap_ctrl |= snd_fm801_rate_bits(runtime->rate) << FM801_RATE_SHIFT;
 513        chip->cap_buf = 0;
 514        fm801_writew(chip, CAP_CTRL, chip->cap_ctrl);
 515        fm801_writew(chip, CAP_COUNT, chip->cap_count - 1);
 516        chip->cap_buffer = runtime->dma_addr;
 517        chip->cap_pos = 0;
 518        fm801_writel(chip, CAP_BUF1, chip->cap_buffer);
 519        fm801_writel(chip, CAP_BUF2,
 520                     chip->cap_buffer + (chip->cap_count % chip->cap_size));
 521        spin_unlock_irq(&chip->reg_lock);
 522        return 0;
 523}
 524
 525static snd_pcm_uframes_t snd_fm801_playback_pointer(struct snd_pcm_substream *substream)
 526{
 527        struct fm801 *chip = snd_pcm_substream_chip(substream);
 528        size_t ptr;
 529
 530        if (!(chip->ply_ctrl & FM801_START))
 531                return 0;
 532        spin_lock(&chip->reg_lock);
 533        ptr = chip->ply_pos + (chip->ply_count - 1) - fm801_readw(chip, PLY_COUNT);
 534        if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_PLAYBACK) {
 535                ptr += chip->ply_count;
 536                ptr %= chip->ply_size;
 537        }
 538        spin_unlock(&chip->reg_lock);
 539        return bytes_to_frames(substream->runtime, ptr);
 540}
 541
 542static snd_pcm_uframes_t snd_fm801_capture_pointer(struct snd_pcm_substream *substream)
 543{
 544        struct fm801 *chip = snd_pcm_substream_chip(substream);
 545        size_t ptr;
 546
 547        if (!(chip->cap_ctrl & FM801_START))
 548                return 0;
 549        spin_lock(&chip->reg_lock);
 550        ptr = chip->cap_pos + (chip->cap_count - 1) - fm801_readw(chip, CAP_COUNT);
 551        if (fm801_readw(chip, IRQ_STATUS) & FM801_IRQ_CAPTURE) {
 552                ptr += chip->cap_count;
 553                ptr %= chip->cap_size;
 554        }
 555        spin_unlock(&chip->reg_lock);
 556        return bytes_to_frames(substream->runtime, ptr);
 557}
 558
 559static irqreturn_t snd_fm801_interrupt(int irq, void *dev_id)
 560{
 561        struct fm801 *chip = dev_id;
 562        unsigned short status;
 563        unsigned int tmp;
 564
 565        status = fm801_readw(chip, IRQ_STATUS);
 566        status &= FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU|FM801_IRQ_VOLUME;
 567        if (! status)
 568                return IRQ_NONE;
 569        /* ack first */
 570        fm801_writew(chip, IRQ_STATUS, status);
 571        if (chip->pcm && (status & FM801_IRQ_PLAYBACK) && chip->playback_substream) {
 572                spin_lock(&chip->reg_lock);
 573                chip->ply_buf++;
 574                chip->ply_pos += chip->ply_count;
 575                chip->ply_pos %= chip->ply_size;
 576                tmp = chip->ply_pos + chip->ply_count;
 577                tmp %= chip->ply_size;
 578                if (chip->ply_buf & 1)
 579                        fm801_writel(chip, PLY_BUF1, chip->ply_buffer + tmp);
 580                else
 581                        fm801_writel(chip, PLY_BUF2, chip->ply_buffer + tmp);
 582                spin_unlock(&chip->reg_lock);
 583                snd_pcm_period_elapsed(chip->playback_substream);
 584        }
 585        if (chip->pcm && (status & FM801_IRQ_CAPTURE) && chip->capture_substream) {
 586                spin_lock(&chip->reg_lock);
 587                chip->cap_buf++;
 588                chip->cap_pos += chip->cap_count;
 589                chip->cap_pos %= chip->cap_size;
 590                tmp = chip->cap_pos + chip->cap_count;
 591                tmp %= chip->cap_size;
 592                if (chip->cap_buf & 1)
 593                        fm801_writel(chip, CAP_BUF1, chip->cap_buffer + tmp);
 594                else
 595                        fm801_writel(chip, CAP_BUF2, chip->cap_buffer + tmp);
 596                spin_unlock(&chip->reg_lock);
 597                snd_pcm_period_elapsed(chip->capture_substream);
 598        }
 599        if (chip->rmidi && (status & FM801_IRQ_MPU))
 600                snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
 601        if (status & FM801_IRQ_VOLUME) {
 602                /* TODO */
 603        }
 604
 605        return IRQ_HANDLED;
 606}
 607
 608static const struct snd_pcm_hardware snd_fm801_playback =
 609{
 610        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 611                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 612                                 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 613                                 SNDRV_PCM_INFO_MMAP_VALID),
 614        .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 615        .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 616        .rate_min =             5500,
 617        .rate_max =             48000,
 618        .channels_min =         1,
 619        .channels_max =         2,
 620        .buffer_bytes_max =     (128*1024),
 621        .period_bytes_min =     64,
 622        .period_bytes_max =     (128*1024),
 623        .periods_min =          1,
 624        .periods_max =          1024,
 625        .fifo_size =            0,
 626};
 627
 628static const struct snd_pcm_hardware snd_fm801_capture =
 629{
 630        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 631                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 632                                 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
 633                                 SNDRV_PCM_INFO_MMAP_VALID),
 634        .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 635        .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 636        .rate_min =             5500,
 637        .rate_max =             48000,
 638        .channels_min =         1,
 639        .channels_max =         2,
 640        .buffer_bytes_max =     (128*1024),
 641        .period_bytes_min =     64,
 642        .period_bytes_max =     (128*1024),
 643        .periods_min =          1,
 644        .periods_max =          1024,
 645        .fifo_size =            0,
 646};
 647
 648static int snd_fm801_playback_open(struct snd_pcm_substream *substream)
 649{
 650        struct fm801 *chip = snd_pcm_substream_chip(substream);
 651        struct snd_pcm_runtime *runtime = substream->runtime;
 652        int err;
 653
 654        chip->playback_substream = substream;
 655        runtime->hw = snd_fm801_playback;
 656        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 657                                   &hw_constraints_rates);
 658        if (chip->multichannel) {
 659                runtime->hw.channels_max = 6;
 660                snd_pcm_hw_constraint_list(runtime, 0,
 661                                           SNDRV_PCM_HW_PARAM_CHANNELS,
 662                                           &hw_constraints_channels);
 663        }
 664        if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 665                return err;
 666        return 0;
 667}
 668
 669static int snd_fm801_capture_open(struct snd_pcm_substream *substream)
 670{
 671        struct fm801 *chip = snd_pcm_substream_chip(substream);
 672        struct snd_pcm_runtime *runtime = substream->runtime;
 673        int err;
 674
 675        chip->capture_substream = substream;
 676        runtime->hw = snd_fm801_capture;
 677        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 678                                   &hw_constraints_rates);
 679        if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 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        if ((err = snd_pcm_new(chip->card, "FM801", device, 1, 1, &pcm)) < 0)
 723                return err;
 724
 725        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_fm801_playback_ops);
 726        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_fm801_capture_ops);
 727
 728        pcm->private_data = chip;
 729        pcm->info_flags = 0;
 730        strcpy(pcm->name, "FM801");
 731        chip->pcm = pcm;
 732
 733        snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &pdev->dev,
 734                                       chip->multichannel ? 128*1024 : 64*1024, 128*1024);
 735
 736        return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 737                                     snd_pcm_alt_chmaps,
 738                                     chip->multichannel ? 6 : 2, 0,
 739                                     NULL);
 740}
 741
 742/*
 743 *  TEA5757 radio
 744 */
 745
 746#ifdef CONFIG_SND_FM801_TEA575X_BOOL
 747
 748/* GPIO to TEA575x maps */
 749struct snd_fm801_tea575x_gpio {
 750        u8 data, clk, wren, most;
 751        char *name;
 752};
 753
 754static const struct snd_fm801_tea575x_gpio snd_fm801_tea575x_gpios[] = {
 755        { .data = 1, .clk = 3, .wren = 2, .most = 0, .name = "SF256-PCS" },
 756        { .data = 1, .clk = 0, .wren = 2, .most = 3, .name = "SF256-PCP" },
 757        { .data = 2, .clk = 0, .wren = 1, .most = 3, .name = "SF64-PCR" },
 758};
 759
 760#define get_tea575x_gpio(chip) \
 761        (&snd_fm801_tea575x_gpios[((chip)->tea575x_tuner & TUNER_TYPE_MASK) - 1])
 762
 763static void snd_fm801_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
 764{
 765        struct fm801 *chip = tea->private_data;
 766        unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 767        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 768
 769        reg &= ~(FM801_GPIO_GP(gpio.data) |
 770                 FM801_GPIO_GP(gpio.clk) |
 771                 FM801_GPIO_GP(gpio.wren));
 772
 773        reg |= (pins & TEA575X_DATA) ? FM801_GPIO_GP(gpio.data) : 0;
 774        reg |= (pins & TEA575X_CLK)  ? FM801_GPIO_GP(gpio.clk) : 0;
 775        /* WRITE_ENABLE is inverted */
 776        reg |= (pins & TEA575X_WREN) ? 0 : FM801_GPIO_GP(gpio.wren);
 777
 778        fm801_writew(chip, GPIO_CTRL, reg);
 779}
 780
 781static u8 snd_fm801_tea575x_get_pins(struct snd_tea575x *tea)
 782{
 783        struct fm801 *chip = tea->private_data;
 784        unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 785        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 786        u8 ret;
 787
 788        ret = 0;
 789        if (reg & FM801_GPIO_GP(gpio.data))
 790                ret |= TEA575X_DATA;
 791        if (reg & FM801_GPIO_GP(gpio.most))
 792                ret |= TEA575X_MOST;
 793        return ret;
 794}
 795
 796static void snd_fm801_tea575x_set_direction(struct snd_tea575x *tea, bool output)
 797{
 798        struct fm801 *chip = tea->private_data;
 799        unsigned short reg = fm801_readw(chip, GPIO_CTRL);
 800        struct snd_fm801_tea575x_gpio gpio = *get_tea575x_gpio(chip);
 801
 802        /* use GPIO lines and set write enable bit */
 803        reg |= FM801_GPIO_GS(gpio.data) |
 804               FM801_GPIO_GS(gpio.wren) |
 805               FM801_GPIO_GS(gpio.clk) |
 806               FM801_GPIO_GS(gpio.most);
 807        if (output) {
 808                /* all of lines are in the write direction */
 809                /* clear data and clock lines */
 810                reg &= ~(FM801_GPIO_GD(gpio.data) |
 811                         FM801_GPIO_GD(gpio.wren) |
 812                         FM801_GPIO_GD(gpio.clk) |
 813                         FM801_GPIO_GP(gpio.data) |
 814                         FM801_GPIO_GP(gpio.clk) |
 815                         FM801_GPIO_GP(gpio.wren));
 816        } else {
 817                /* use GPIO lines, set data direction to input */
 818                reg |= FM801_GPIO_GD(gpio.data) |
 819                       FM801_GPIO_GD(gpio.most) |
 820                       FM801_GPIO_GP(gpio.data) |
 821                       FM801_GPIO_GP(gpio.most) |
 822                       FM801_GPIO_GP(gpio.wren);
 823                /* all of lines are in the write direction, except data */
 824                /* clear data, write enable and clock lines */
 825                reg &= ~(FM801_GPIO_GD(gpio.wren) |
 826                         FM801_GPIO_GD(gpio.clk) |
 827                         FM801_GPIO_GP(gpio.clk));
 828        }
 829
 830        fm801_writew(chip, GPIO_CTRL, reg);
 831}
 832
 833static const struct snd_tea575x_ops snd_fm801_tea_ops = {
 834        .set_pins = snd_fm801_tea575x_set_pins,
 835        .get_pins = snd_fm801_tea575x_get_pins,
 836        .set_direction = snd_fm801_tea575x_set_direction,
 837};
 838#endif
 839
 840/*
 841 *  Mixer routines
 842 */
 843
 844#define FM801_SINGLE(xname, reg, shift, mask, invert) \
 845{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_single, \
 846  .get = snd_fm801_get_single, .put = snd_fm801_put_single, \
 847  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 848
 849static int snd_fm801_info_single(struct snd_kcontrol *kcontrol,
 850                                 struct snd_ctl_elem_info *uinfo)
 851{
 852        int mask = (kcontrol->private_value >> 16) & 0xff;
 853
 854        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 855        uinfo->count = 1;
 856        uinfo->value.integer.min = 0;
 857        uinfo->value.integer.max = mask;
 858        return 0;
 859}
 860
 861static int snd_fm801_get_single(struct snd_kcontrol *kcontrol,
 862                                struct snd_ctl_elem_value *ucontrol)
 863{
 864        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 865        int reg = kcontrol->private_value & 0xff;
 866        int shift = (kcontrol->private_value >> 8) & 0xff;
 867        int mask = (kcontrol->private_value >> 16) & 0xff;
 868        int invert = (kcontrol->private_value >> 24) & 0xff;
 869        long *value = ucontrol->value.integer.value;
 870
 871        value[0] = (fm801_ioread16(chip, reg) >> shift) & mask;
 872        if (invert)
 873                value[0] = mask - value[0];
 874        return 0;
 875}
 876
 877static int snd_fm801_put_single(struct snd_kcontrol *kcontrol,
 878                                struct snd_ctl_elem_value *ucontrol)
 879{
 880        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 881        int reg = kcontrol->private_value & 0xff;
 882        int shift = (kcontrol->private_value >> 8) & 0xff;
 883        int mask = (kcontrol->private_value >> 16) & 0xff;
 884        int invert = (kcontrol->private_value >> 24) & 0xff;
 885        unsigned short val;
 886
 887        val = (ucontrol->value.integer.value[0] & mask);
 888        if (invert)
 889                val = mask - val;
 890        return snd_fm801_update_bits(chip, reg, mask << shift, val << shift);
 891}
 892
 893#define FM801_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
 894{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_fm801_info_double, \
 895  .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 896  .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
 897#define FM801_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
 898{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 899  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 900  .name = xname, .info = snd_fm801_info_double, \
 901  .get = snd_fm801_get_double, .put = snd_fm801_put_double, \
 902  .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
 903  .tlv = { .p = (xtlv) } }
 904
 905static int snd_fm801_info_double(struct snd_kcontrol *kcontrol,
 906                                 struct snd_ctl_elem_info *uinfo)
 907{
 908        int mask = (kcontrol->private_value >> 16) & 0xff;
 909
 910        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 911        uinfo->count = 2;
 912        uinfo->value.integer.min = 0;
 913        uinfo->value.integer.max = mask;
 914        return 0;
 915}
 916
 917static int snd_fm801_get_double(struct snd_kcontrol *kcontrol,
 918                                struct snd_ctl_elem_value *ucontrol)
 919{
 920        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 921        int reg = kcontrol->private_value & 0xff;
 922        int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 923        int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 924        int mask = (kcontrol->private_value >> 16) & 0xff;
 925        int invert = (kcontrol->private_value >> 24) & 0xff;
 926        long *value = ucontrol->value.integer.value;
 927
 928        spin_lock_irq(&chip->reg_lock);
 929        value[0] = (fm801_ioread16(chip, reg) >> shift_left) & mask;
 930        value[1] = (fm801_ioread16(chip, reg) >> shift_right) & mask;
 931        spin_unlock_irq(&chip->reg_lock);
 932        if (invert) {
 933                value[0] = mask - value[0];
 934                value[1] = mask - value[1];
 935        }
 936        return 0;
 937}
 938
 939static int snd_fm801_put_double(struct snd_kcontrol *kcontrol,
 940                                struct snd_ctl_elem_value *ucontrol)
 941{
 942        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 943        int reg = kcontrol->private_value & 0xff;
 944        int shift_left = (kcontrol->private_value >> 8) & 0x0f;
 945        int shift_right = (kcontrol->private_value >> 12) & 0x0f;
 946        int mask = (kcontrol->private_value >> 16) & 0xff;
 947        int invert = (kcontrol->private_value >> 24) & 0xff;
 948        unsigned short val1, val2;
 949 
 950        val1 = ucontrol->value.integer.value[0] & mask;
 951        val2 = ucontrol->value.integer.value[1] & mask;
 952        if (invert) {
 953                val1 = mask - val1;
 954                val2 = mask - val2;
 955        }
 956        return snd_fm801_update_bits(chip, reg,
 957                                     (mask << shift_left) | (mask << shift_right),
 958                                     (val1 << shift_left ) | (val2 << shift_right));
 959}
 960
 961static int snd_fm801_info_mux(struct snd_kcontrol *kcontrol,
 962                              struct snd_ctl_elem_info *uinfo)
 963{
 964        static const char * const texts[5] = {
 965                "AC97 Primary", "FM", "I2S", "PCM", "AC97 Secondary"
 966        };
 967 
 968        return snd_ctl_enum_info(uinfo, 1, 5, texts);
 969}
 970
 971static int snd_fm801_get_mux(struct snd_kcontrol *kcontrol,
 972                             struct snd_ctl_elem_value *ucontrol)
 973{
 974        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 975        unsigned short val;
 976 
 977        val = fm801_readw(chip, REC_SRC) & 7;
 978        if (val > 4)
 979                val = 4;
 980        ucontrol->value.enumerated.item[0] = val;
 981        return 0;
 982}
 983
 984static int snd_fm801_put_mux(struct snd_kcontrol *kcontrol,
 985                             struct snd_ctl_elem_value *ucontrol)
 986{
 987        struct fm801 *chip = snd_kcontrol_chip(kcontrol);
 988        unsigned short val;
 989 
 990        if ((val = ucontrol->value.enumerated.item[0]) > 4)
 991                return -EINVAL;
 992        return snd_fm801_update_bits(chip, FM801_REC_SRC, 7, val);
 993}
 994
 995static const DECLARE_TLV_DB_SCALE(db_scale_dsp, -3450, 150, 0);
 996
 997#define FM801_CONTROLS ARRAY_SIZE(snd_fm801_controls)
 998
 999static const struct snd_kcontrol_new snd_fm801_controls[] = {
1000FM801_DOUBLE_TLV("Wave Playback Volume", FM801_PCM_VOL, 0, 8, 31, 1,
1001                 db_scale_dsp),
1002FM801_SINGLE("Wave Playback Switch", FM801_PCM_VOL, 15, 1, 1),
1003FM801_DOUBLE_TLV("I2S Playback Volume", FM801_I2S_VOL, 0, 8, 31, 1,
1004                 db_scale_dsp),
1005FM801_SINGLE("I2S Playback Switch", FM801_I2S_VOL, 15, 1, 1),
1006FM801_DOUBLE_TLV("FM Playback Volume", FM801_FM_VOL, 0, 8, 31, 1,
1007                 db_scale_dsp),
1008FM801_SINGLE("FM Playback Switch", FM801_FM_VOL, 15, 1, 1),
1009{
1010        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1011        .name = "Digital Capture Source",
1012        .info = snd_fm801_info_mux,
1013        .get = snd_fm801_get_mux,
1014        .put = snd_fm801_put_mux,
1015}
1016};
1017
1018#define FM801_CONTROLS_MULTI ARRAY_SIZE(snd_fm801_controls_multi)
1019
1020static const struct snd_kcontrol_new snd_fm801_controls_multi[] = {
1021FM801_SINGLE("AC97 2ch->4ch Copy Switch", FM801_CODEC_CTRL, 7, 1, 0),
1022FM801_SINGLE("AC97 18-bit Switch", FM801_CODEC_CTRL, 10, 1, 0),
1023FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), FM801_I2S_MODE, 8, 1, 0),
1024FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",PLAYBACK,SWITCH), FM801_I2S_MODE, 9, 1, 0),
1025FM801_SINGLE(SNDRV_CTL_NAME_IEC958("Raw Data ",CAPTURE,SWITCH), FM801_I2S_MODE, 10, 1, 0),
1026FM801_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH), FM801_GEN_CTRL, 2, 1, 0),
1027};
1028
1029static void snd_fm801_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1030{
1031        struct fm801 *chip = bus->private_data;
1032        chip->ac97_bus = NULL;
1033}
1034
1035static void snd_fm801_mixer_free_ac97(struct snd_ac97 *ac97)
1036{
1037        struct fm801 *chip = ac97->private_data;
1038        if (ac97->num == 0) {
1039                chip->ac97 = NULL;
1040        } else {
1041                chip->ac97_sec = NULL;
1042        }
1043}
1044
1045static int snd_fm801_mixer(struct fm801 *chip)
1046{
1047        struct snd_ac97_template ac97;
1048        unsigned int i;
1049        int err;
1050        static const struct snd_ac97_bus_ops ops = {
1051                .write = snd_fm801_codec_write,
1052                .read = snd_fm801_codec_read,
1053        };
1054
1055        if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1056                return err;
1057        chip->ac97_bus->private_free = snd_fm801_mixer_free_ac97_bus;
1058
1059        memset(&ac97, 0, sizeof(ac97));
1060        ac97.private_data = chip;
1061        ac97.private_free = snd_fm801_mixer_free_ac97;
1062        if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1063                return err;
1064        if (chip->secondary) {
1065                ac97.num = 1;
1066                ac97.addr = chip->secondary_addr;
1067                if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97_sec)) < 0)
1068                        return err;
1069        }
1070        for (i = 0; i < FM801_CONTROLS; i++) {
1071                err = snd_ctl_add(chip->card,
1072                        snd_ctl_new1(&snd_fm801_controls[i], chip));
1073                if (err < 0)
1074                        return err;
1075        }
1076        if (chip->multichannel) {
1077                for (i = 0; i < FM801_CONTROLS_MULTI; i++) {
1078                        err = snd_ctl_add(chip->card,
1079                                snd_ctl_new1(&snd_fm801_controls_multi[i], chip));
1080                        if (err < 0)
1081                                return err;
1082                }
1083        }
1084        return 0;
1085}
1086
1087/*
1088 *  initialization routines
1089 */
1090
1091static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
1092                          unsigned short reg, unsigned long waits)
1093{
1094        unsigned long timeout = jiffies + waits;
1095
1096        fm801_writew(chip, AC97_CMD,
1097                     reg | (codec_id << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ);
1098        udelay(5);
1099        do {
1100                if ((fm801_readw(chip, AC97_CMD) &
1101                     (FM801_AC97_VALID | FM801_AC97_BUSY)) == FM801_AC97_VALID)
1102                        return 0;
1103                schedule_timeout_uninterruptible(1);
1104        } while (time_after(timeout, jiffies));
1105        return -EIO;
1106}
1107
1108static int reset_codec(struct fm801 *chip)
1109{
1110        /* codec cold reset + AC'97 warm reset */
1111        fm801_writew(chip, CODEC_CTRL, (1 << 5) | (1 << 6));
1112        fm801_readw(chip, CODEC_CTRL); /* flush posting data */
1113        udelay(100);
1114        fm801_writew(chip, CODEC_CTRL, 0);
1115
1116        return wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750));
1117}
1118
1119static void snd_fm801_chip_multichannel_init(struct fm801 *chip)
1120{
1121        unsigned short cmdw;
1122
1123        if (chip->multichannel) {
1124                if (chip->secondary_addr) {
1125                        wait_for_codec(chip, chip->secondary_addr,
1126                                       AC97_VENDOR_ID1, msecs_to_jiffies(50));
1127                } else {
1128                        /* my card has the secondary codec */
1129                        /* at address #3, so the loop is inverted */
1130                        int i;
1131                        for (i = 3; i > 0; i--) {
1132                                if (!wait_for_codec(chip, i, AC97_VENDOR_ID1,
1133                                                     msecs_to_jiffies(50))) {
1134                                        cmdw = fm801_readw(chip, AC97_DATA);
1135                                        if (cmdw != 0xffff && cmdw != 0) {
1136                                                chip->secondary = 1;
1137                                                chip->secondary_addr = i;
1138                                                break;
1139                                        }
1140                                }
1141                        }
1142                }
1143
1144                /* the recovery phase, it seems that probing for non-existing codec might */
1145                /* cause timeout problems */
1146                wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
1147        }
1148}
1149
1150static void snd_fm801_chip_init(struct fm801 *chip)
1151{
1152        unsigned short cmdw;
1153
1154        /* init volume */
1155        fm801_writew(chip, PCM_VOL, 0x0808);
1156        fm801_writew(chip, FM_VOL, 0x9f1f);
1157        fm801_writew(chip, I2S_VOL, 0x8808);
1158
1159        /* I2S control - I2S mode */
1160        fm801_writew(chip, I2S_MODE, 0x0003);
1161
1162        /* interrupt setup */
1163        cmdw = fm801_readw(chip, IRQ_MASK);
1164        if (chip->irq < 0)
1165                cmdw |= 0x00c3;         /* mask everything, no PCM nor MPU */
1166        else
1167                cmdw &= ~0x0083;        /* unmask MPU, PLAYBACK & CAPTURE */
1168        fm801_writew(chip, IRQ_MASK, cmdw);
1169
1170        /* interrupt clear */
1171        fm801_writew(chip, IRQ_STATUS,
1172                     FM801_IRQ_PLAYBACK | FM801_IRQ_CAPTURE | FM801_IRQ_MPU);
1173}
1174
1175static int snd_fm801_free(struct fm801 *chip)
1176{
1177        unsigned short cmdw;
1178
1179        if (chip->irq < 0)
1180                goto __end_hw;
1181
1182        /* interrupt setup - mask everything */
1183        cmdw = fm801_readw(chip, IRQ_MASK);
1184        cmdw |= 0x00c3;
1185        fm801_writew(chip, IRQ_MASK, cmdw);
1186
1187        devm_free_irq(chip->dev, chip->irq, chip);
1188
1189      __end_hw:
1190#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1191        if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1192                snd_tea575x_exit(&chip->tea);
1193                v4l2_device_unregister(&chip->v4l2_dev);
1194        }
1195#endif
1196        return 0;
1197}
1198
1199static int snd_fm801_dev_free(struct snd_device *device)
1200{
1201        struct fm801 *chip = device->device_data;
1202        return snd_fm801_free(chip);
1203}
1204
1205static int snd_fm801_create(struct snd_card *card,
1206                            struct pci_dev *pci,
1207                            int tea575x_tuner,
1208                            int radio_nr,
1209                            struct fm801 **rchip)
1210{
1211        struct fm801 *chip;
1212        int err;
1213        static const struct snd_device_ops ops = {
1214                .dev_free =     snd_fm801_dev_free,
1215        };
1216
1217        *rchip = NULL;
1218        if ((err = pcim_enable_device(pci)) < 0)
1219                return err;
1220        chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);
1221        if (chip == NULL)
1222                return -ENOMEM;
1223        spin_lock_init(&chip->reg_lock);
1224        chip->card = card;
1225        chip->dev = &pci->dev;
1226        chip->irq = -1;
1227        chip->tea575x_tuner = tea575x_tuner;
1228        if ((err = pci_request_regions(pci, "FM801")) < 0)
1229                return err;
1230        chip->port = pci_resource_start(pci, 0);
1231
1232        if (pci->revision >= 0xb1)      /* FM801-AU */
1233                chip->multichannel = 1;
1234
1235        if (!(chip->tea575x_tuner & TUNER_ONLY)) {
1236                if (reset_codec(chip) < 0) {
1237                        dev_info(chip->card->dev,
1238                                 "Primary AC'97 codec not found, assume SF64-PCR (tuner-only)\n");
1239                        chip->tea575x_tuner = 3 | TUNER_ONLY;
1240                } else {
1241                        snd_fm801_chip_multichannel_init(chip);
1242                }
1243        }
1244
1245        if ((chip->tea575x_tuner & TUNER_ONLY) == 0) {
1246                if (devm_request_irq(&pci->dev, pci->irq, snd_fm801_interrupt,
1247                                IRQF_SHARED, KBUILD_MODNAME, chip)) {
1248                        dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1249                        snd_fm801_free(chip);
1250                        return -EBUSY;
1251                }
1252                chip->irq = pci->irq;
1253                card->sync_irq = chip->irq;
1254                pci_set_master(pci);
1255        }
1256
1257        snd_fm801_chip_init(chip);
1258
1259        if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1260                snd_fm801_free(chip);
1261                return err;
1262        }
1263
1264#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1265        err = v4l2_device_register(&pci->dev, &chip->v4l2_dev);
1266        if (err < 0) {
1267                snd_fm801_free(chip);
1268                return err;
1269        }
1270        chip->tea.v4l2_dev = &chip->v4l2_dev;
1271        chip->tea.radio_nr = radio_nr;
1272        chip->tea.private_data = chip;
1273        chip->tea.ops = &snd_fm801_tea_ops;
1274        sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci));
1275        if ((chip->tea575x_tuner & TUNER_TYPE_MASK) > 0 &&
1276            (chip->tea575x_tuner & TUNER_TYPE_MASK) < 4) {
1277                if (snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1278                        dev_err(card->dev, "TEA575x radio not found\n");
1279                        snd_fm801_free(chip);
1280                        return -ENODEV;
1281                }
1282        } else if ((chip->tea575x_tuner & TUNER_TYPE_MASK) == 0) {
1283                unsigned int tuner_only = chip->tea575x_tuner & TUNER_ONLY;
1284
1285                /* autodetect tuner connection */
1286                for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) {
1287                        chip->tea575x_tuner = tea575x_tuner;
1288                        if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) {
1289                                dev_info(card->dev,
1290                                         "detected TEA575x radio type %s\n",
1291                                           get_tea575x_gpio(chip)->name);
1292                                break;
1293                        }
1294                }
1295                if (tea575x_tuner == 4) {
1296                        dev_err(card->dev, "TEA575x radio not found\n");
1297                        chip->tea575x_tuner = TUNER_DISABLED;
1298                }
1299
1300                chip->tea575x_tuner |= tuner_only;
1301        }
1302        if (!(chip->tea575x_tuner & TUNER_DISABLED)) {
1303                strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name,
1304                        sizeof(chip->tea.card));
1305        }
1306#endif
1307
1308        *rchip = chip;
1309        return 0;
1310}
1311
1312static int snd_card_fm801_probe(struct pci_dev *pci,
1313                                const struct pci_device_id *pci_id)
1314{
1315        static int dev;
1316        struct snd_card *card;
1317        struct fm801 *chip;
1318        struct snd_opl3 *opl3;
1319        int err;
1320
1321        if (dev >= SNDRV_CARDS)
1322                return -ENODEV;
1323        if (!enable[dev]) {
1324                dev++;
1325                return -ENOENT;
1326        }
1327
1328        err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1329                           0, &card);
1330        if (err < 0)
1331                return err;
1332        if ((err = snd_fm801_create(card, pci, tea575x_tuner[dev], radio_nr[dev], &chip)) < 0) {
1333                snd_card_free(card);
1334                return err;
1335        }
1336        card->private_data = chip;
1337
1338        strcpy(card->driver, "FM801");
1339        strcpy(card->shortname, "ForteMedia FM801-");
1340        strcat(card->shortname, chip->multichannel ? "AU" : "AS");
1341        sprintf(card->longname, "%s at 0x%lx, irq %i",
1342                card->shortname, chip->port, chip->irq);
1343
1344        if (chip->tea575x_tuner & TUNER_ONLY)
1345                goto __fm801_tuner_only;
1346
1347        if ((err = snd_fm801_pcm(chip, 0)) < 0) {
1348                snd_card_free(card);
1349                return err;
1350        }
1351        if ((err = snd_fm801_mixer(chip)) < 0) {
1352                snd_card_free(card);
1353                return err;
1354        }
1355        if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_FM801,
1356                                       chip->port + FM801_MPU401_DATA,
1357                                       MPU401_INFO_INTEGRATED |
1358                                       MPU401_INFO_IRQ_HOOK,
1359                                       -1, &chip->rmidi)) < 0) {
1360                snd_card_free(card);
1361                return err;
1362        }
1363        if ((err = snd_opl3_create(card, chip->port + FM801_OPL3_BANK0,
1364                                   chip->port + FM801_OPL3_BANK1,
1365                                   OPL3_HW_OPL3_FM801, 1, &opl3)) < 0) {
1366                snd_card_free(card);
1367                return err;
1368        }
1369        if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1370                snd_card_free(card);
1371                return err;
1372        }
1373
1374      __fm801_tuner_only:
1375        if ((err = snd_card_register(card)) < 0) {
1376                snd_card_free(card);
1377                return err;
1378        }
1379        pci_set_drvdata(pci, card);
1380        dev++;
1381        return 0;
1382}
1383
1384static void snd_card_fm801_remove(struct pci_dev *pci)
1385{
1386        snd_card_free(pci_get_drvdata(pci));
1387}
1388
1389#ifdef CONFIG_PM_SLEEP
1390static const unsigned char saved_regs[] = {
1391        FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
1392        FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
1393        FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
1394        FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
1395};
1396
1397static int snd_fm801_suspend(struct device *dev)
1398{
1399        struct snd_card *card = dev_get_drvdata(dev);
1400        struct fm801 *chip = card->private_data;
1401        int i;
1402
1403        snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1404
1405        for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1406                chip->saved_regs[i] = fm801_ioread16(chip, saved_regs[i]);
1407
1408        if (chip->tea575x_tuner & TUNER_ONLY) {
1409                /* FIXME: tea575x suspend */
1410        } else {
1411                snd_ac97_suspend(chip->ac97);
1412                snd_ac97_suspend(chip->ac97_sec);
1413        }
1414
1415        return 0;
1416}
1417
1418static int snd_fm801_resume(struct device *dev)
1419{
1420        struct snd_card *card = dev_get_drvdata(dev);
1421        struct fm801 *chip = card->private_data;
1422        int i;
1423
1424        if (chip->tea575x_tuner & TUNER_ONLY) {
1425                snd_fm801_chip_init(chip);
1426        } else {
1427                reset_codec(chip);
1428                snd_fm801_chip_multichannel_init(chip);
1429                snd_fm801_chip_init(chip);
1430                snd_ac97_resume(chip->ac97);
1431                snd_ac97_resume(chip->ac97_sec);
1432        }
1433
1434        for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
1435                fm801_iowrite16(chip, saved_regs[i], chip->saved_regs[i]);
1436
1437#ifdef CONFIG_SND_FM801_TEA575X_BOOL
1438        if (!(chip->tea575x_tuner & TUNER_DISABLED))
1439                snd_tea575x_set_freq(&chip->tea);
1440#endif
1441
1442        snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1443        return 0;
1444}
1445
1446static SIMPLE_DEV_PM_OPS(snd_fm801_pm, snd_fm801_suspend, snd_fm801_resume);
1447#define SND_FM801_PM_OPS        &snd_fm801_pm
1448#else
1449#define SND_FM801_PM_OPS        NULL
1450#endif /* CONFIG_PM_SLEEP */
1451
1452static struct pci_driver fm801_driver = {
1453        .name = KBUILD_MODNAME,
1454        .id_table = snd_fm801_ids,
1455        .probe = snd_card_fm801_probe,
1456        .remove = snd_card_fm801_remove,
1457        .driver = {
1458                .pm = SND_FM801_PM_OPS,
1459        },
1460};
1461
1462module_pci_driver(fm801_driver);
1463