linux/sound/isa/es1688/es1688_lib.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4 *  Routines for control of ESS ES1688/688/488 chip
   5 */
   6
   7#include <linux/init.h>
   8#include <linux/interrupt.h>
   9#include <linux/delay.h>
  10#include <linux/slab.h>
  11#include <linux/ioport.h>
  12#include <linux/module.h>
  13#include <linux/io.h>
  14#include <sound/core.h>
  15#include <sound/es1688.h>
  16#include <sound/initval.h>
  17
  18#include <asm/dma.h>
  19
  20MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  21MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
  22MODULE_LICENSE("GPL");
  23
  24static int snd_es1688_dsp_command(struct snd_es1688 *chip, unsigned char val)
  25{
  26        int i;
  27
  28        for (i = 10000; i; i--)
  29                if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
  30                        outb(val, ES1688P(chip, COMMAND));
  31                        return 1;
  32                }
  33#ifdef CONFIG_SND_DEBUG
  34        printk(KERN_DEBUG "snd_es1688_dsp_command: timeout (0x%x)\n", val);
  35#endif
  36        return 0;
  37}
  38
  39static int snd_es1688_dsp_get_byte(struct snd_es1688 *chip)
  40{
  41        int i;
  42
  43        for (i = 1000; i; i--)
  44                if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
  45                        return inb(ES1688P(chip, READ));
  46        snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
  47        return -ENODEV;
  48}
  49
  50static int snd_es1688_write(struct snd_es1688 *chip,
  51                            unsigned char reg, unsigned char data)
  52{
  53        if (!snd_es1688_dsp_command(chip, reg))
  54                return 0;
  55        return snd_es1688_dsp_command(chip, data);
  56}
  57
  58static int snd_es1688_read(struct snd_es1688 *chip, unsigned char reg)
  59{
  60        /* Read a byte from an extended mode register of ES1688 */
  61        if (!snd_es1688_dsp_command(chip, 0xc0))
  62                return -1;
  63        if (!snd_es1688_dsp_command(chip, reg))
  64                return -1;
  65        return snd_es1688_dsp_get_byte(chip);
  66}
  67
  68void snd_es1688_mixer_write(struct snd_es1688 *chip,
  69                            unsigned char reg, unsigned char data)
  70{
  71        outb(reg, ES1688P(chip, MIXER_ADDR));
  72        udelay(10);
  73        outb(data, ES1688P(chip, MIXER_DATA));
  74        udelay(10);
  75}
  76
  77static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned char reg)
  78{
  79        unsigned char result;
  80
  81        outb(reg, ES1688P(chip, MIXER_ADDR));
  82        udelay(10);
  83        result = inb(ES1688P(chip, MIXER_DATA));
  84        udelay(10);
  85        return result;
  86}
  87
  88int snd_es1688_reset(struct snd_es1688 *chip)
  89{
  90        int i;
  91
  92        outb(3, ES1688P(chip, RESET));          /* valid only for ESS chips, SB -> 1 */
  93        udelay(10);
  94        outb(0, ES1688P(chip, RESET));
  95        udelay(30);
  96        for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++);
  97        if (inb(ES1688P(chip, READ)) != 0xaa) {
  98                snd_printd("ess_reset at 0x%lx: failed!!!\n", chip->port);
  99                return -ENODEV;
 100        }
 101        snd_es1688_dsp_command(chip, 0xc6);     /* enable extended mode */
 102        return 0;
 103}
 104EXPORT_SYMBOL(snd_es1688_reset);
 105
 106static int snd_es1688_probe(struct snd_es1688 *chip)
 107{
 108        unsigned long flags;
 109        unsigned short major, minor;
 110        int i;
 111
 112        /*
 113         *  initialization sequence
 114         */
 115
 116        spin_lock_irqsave(&chip->reg_lock, flags);      /* Some ESS1688 cards need this */
 117        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 118        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 119        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 120        inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 121        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 122        inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 123        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 124        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 125        inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 126        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 127        inb(ES1688P(chip, ENABLE0));    /* ENABLE0 */
 128
 129        if (snd_es1688_reset(chip) < 0) {
 130                snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
 131                spin_unlock_irqrestore(&chip->reg_lock, flags);
 132                return -ENODEV;
 133        }
 134        snd_es1688_dsp_command(chip, 0xe7);     /* return identification */
 135
 136        for (i = 1000, major = minor = 0; i; i--) {
 137                if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
 138                        if (major == 0) {
 139                                major = inb(ES1688P(chip, READ));
 140                        } else {
 141                                minor = inb(ES1688P(chip, READ));
 142                        }
 143                }
 144        }
 145
 146        spin_unlock_irqrestore(&chip->reg_lock, flags);
 147
 148        snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
 149
 150        chip->version = (major << 8) | minor;
 151        if (!chip->version)
 152                return -ENODEV; /* probably SB */
 153
 154        switch (chip->version & 0xfff0) {
 155        case 0x4880:
 156                snd_printk(KERN_ERR "[0x%lx] ESS: AudioDrive ES488 detected, "
 157                           "but driver is in another place\n", chip->port);
 158                return -ENODEV;
 159        case 0x6880:
 160                break;
 161        default:
 162                snd_printk(KERN_ERR "[0x%lx] ESS: unknown AudioDrive chip "
 163                           "with version 0x%x (Jazz16 soundcard?)\n",
 164                           chip->port, chip->version);
 165                return -ENODEV;
 166        }
 167
 168        spin_lock_irqsave(&chip->reg_lock, flags);
 169        snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 170        snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 171        spin_unlock_irqrestore(&chip->reg_lock, flags);
 172
 173        /* enable joystick, but disable OPL3 */
 174        spin_lock_irqsave(&chip->mixer_lock, flags);
 175        snd_es1688_mixer_write(chip, 0x40, 0x01);
 176        spin_unlock_irqrestore(&chip->mixer_lock, flags);
 177
 178        return 0;
 179}
 180
 181static int snd_es1688_init(struct snd_es1688 * chip, int enable)
 182{
 183        static const int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
 184        unsigned long flags;
 185        int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
 186
 187        /* ok.. setup MPU-401 port and joystick and OPL3 */
 188        cfg = 0x01;             /* enable joystick, but disable OPL3 */
 189        if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
 190                tmp = (chip->mpu_port & 0x0f0) >> 4;
 191                if (tmp <= 3) {
 192                        switch (chip->mpu_irq) {
 193                        case 9:
 194                                tmp1 = 4;
 195                                break;
 196                        case 5:
 197                                tmp1 = 5;
 198                                break;
 199                        case 7:
 200                                tmp1 = 6;
 201                                break;
 202                        case 10:
 203                                tmp1 = 7;
 204                                break;
 205                        default:
 206                                tmp1 = 0;
 207                        }
 208                        if (tmp1) {
 209                                cfg |= (tmp << 3) | (tmp1 << 5);
 210                        }
 211                }
 212        }
 213#if 0
 214        snd_printk(KERN_DEBUG "mpu cfg = 0x%x\n", cfg);
 215#endif
 216        spin_lock_irqsave(&chip->reg_lock, flags);
 217        snd_es1688_mixer_write(chip, 0x40, cfg);
 218        spin_unlock_irqrestore(&chip->reg_lock, flags);
 219        /* --- */
 220        spin_lock_irqsave(&chip->reg_lock, flags);
 221        snd_es1688_read(chip, 0xb1);
 222        snd_es1688_read(chip, 0xb2);
 223        spin_unlock_irqrestore(&chip->reg_lock, flags);
 224        if (enable) {
 225                cfg = 0xf0;     /* enable only DMA counter interrupt */
 226                irq_bits = irqs[chip->irq & 0x0f];
 227                if (irq_bits < 0) {
 228                        snd_printk(KERN_ERR "[0x%lx] ESS: bad IRQ %d "
 229                                   "for ES1688 chip!!\n",
 230                                   chip->port, chip->irq);
 231#if 0
 232                        irq_bits = 0;
 233                        cfg = 0x10;
 234#endif
 235                        return -EINVAL;
 236                }
 237                spin_lock_irqsave(&chip->reg_lock, flags);
 238                snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
 239                spin_unlock_irqrestore(&chip->reg_lock, flags);
 240                cfg = 0xf0;     /* extended mode DMA enable */
 241                dma = chip->dma8;
 242                if (dma > 3 || dma == 2) {
 243                        snd_printk(KERN_ERR "[0x%lx] ESS: bad DMA channel %d "
 244                                   "for ES1688 chip!!\n", chip->port, dma);
 245#if 0
 246                        dma_bits = 0;
 247                        cfg = 0x00;     /* disable all DMA */
 248#endif
 249                        return -EINVAL;
 250                } else {
 251                        dma_bits = dma;
 252                        if (dma != 3)
 253                                dma_bits++;
 254                }
 255                spin_lock_irqsave(&chip->reg_lock, flags);
 256                snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
 257                spin_unlock_irqrestore(&chip->reg_lock, flags);
 258        } else {
 259                spin_lock_irqsave(&chip->reg_lock, flags);
 260                snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 261                snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 262                spin_unlock_irqrestore(&chip->reg_lock, flags);
 263        }
 264        spin_lock_irqsave(&chip->reg_lock, flags);
 265        snd_es1688_read(chip, 0xb1);
 266        snd_es1688_read(chip, 0xb2);
 267        snd_es1688_reset(chip);
 268        spin_unlock_irqrestore(&chip->reg_lock, flags);
 269        return 0;
 270}
 271
 272/*
 273
 274 */
 275
 276static const struct snd_ratnum clocks[2] = {
 277        {
 278                .num = 795444,
 279                .den_min = 1,
 280                .den_max = 128,
 281                .den_step = 1,
 282        },
 283        {
 284                .num = 397722,
 285                .den_min = 1,
 286                .den_max = 128,
 287                .den_step = 1,
 288        }
 289};
 290
 291static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
 292        .nrats = 2,
 293        .rats = clocks,
 294};
 295
 296static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
 297{
 298        struct snd_pcm_runtime *runtime = substream->runtime;
 299        unsigned int bits, divider;
 300
 301        if (runtime->rate_num == clocks[0].num)
 302                bits = 256 - runtime->rate_den;
 303        else
 304                bits = 128 - runtime->rate_den;
 305        /* set filter register */
 306        divider = 256 - 7160000*20/(8*82*runtime->rate);
 307        /* write result to hardware */
 308        snd_es1688_write(chip, 0xa1, bits);
 309        snd_es1688_write(chip, 0xa2, divider);
 310}
 311
 312static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
 313{
 314        int val;
 315
 316        if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 317                value = 0x00;
 318        } else if (cmd != SNDRV_PCM_TRIGGER_START) {
 319                return -EINVAL;
 320        }
 321        spin_lock(&chip->reg_lock);
 322        chip->trigger_value = value;
 323        val = snd_es1688_read(chip, 0xb8);
 324        if ((val < 0) || (val & 0x0f) == value) {
 325                spin_unlock(&chip->reg_lock);
 326                return -EINVAL; /* something is wrong */
 327        }
 328#if 0
 329        printk(KERN_DEBUG "trigger: val = 0x%x, value = 0x%x\n", val, value);
 330        printk(KERN_DEBUG "trigger: pointer = 0x%x\n",
 331               snd_dma_pointer(chip->dma8, chip->dma_size));
 332#endif
 333        snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
 334        spin_unlock(&chip->reg_lock);
 335        return 0;
 336}
 337
 338static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
 339{
 340        unsigned long flags;
 341        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 342        struct snd_pcm_runtime *runtime = substream->runtime;
 343        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 344        unsigned int count = snd_pcm_lib_period_bytes(substream);
 345
 346        chip->dma_size = size;
 347        spin_lock_irqsave(&chip->reg_lock, flags);
 348        snd_es1688_reset(chip);
 349        snd_es1688_set_rate(chip, substream);
 350        snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
 351        snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 352        snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 353        if (runtime->channels == 1) {
 354                if (snd_pcm_format_width(runtime->format) == 8) {
 355                        /* 8. bit mono */
 356                        snd_es1688_write(chip, 0xb6, 0x80);
 357                        snd_es1688_write(chip, 0xb7, 0x51);
 358                        snd_es1688_write(chip, 0xb7, 0xd0);
 359                } else {
 360                        /* 16. bit mono */
 361                        snd_es1688_write(chip, 0xb6, 0x00);
 362                        snd_es1688_write(chip, 0xb7, 0x71);
 363                        snd_es1688_write(chip, 0xb7, 0xf4);
 364                }
 365        } else {
 366                if (snd_pcm_format_width(runtime->format) == 8) {
 367                        /* 8. bit stereo */
 368                        snd_es1688_write(chip, 0xb6, 0x80);
 369                        snd_es1688_write(chip, 0xb7, 0x51);
 370                        snd_es1688_write(chip, 0xb7, 0x98);
 371                } else {
 372                        /* 16. bit stereo */
 373                        snd_es1688_write(chip, 0xb6, 0x00);
 374                        snd_es1688_write(chip, 0xb7, 0x71);
 375                        snd_es1688_write(chip, 0xb7, 0xbc);
 376                }
 377        }
 378        snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 379        snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 380        snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
 381        spin_unlock_irqrestore(&chip->reg_lock, flags);
 382        /* --- */
 383        count = -count;
 384        snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 385        spin_lock_irqsave(&chip->reg_lock, flags);
 386        snd_es1688_write(chip, 0xa4, (unsigned char) count);
 387        snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 388        spin_unlock_irqrestore(&chip->reg_lock, flags);
 389        return 0;
 390}
 391
 392static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
 393                                       int cmd)
 394{
 395        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 396        return snd_es1688_trigger(chip, cmd, 0x05);
 397}
 398
 399static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
 400{
 401        unsigned long flags;
 402        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 403        struct snd_pcm_runtime *runtime = substream->runtime;
 404        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 405        unsigned int count = snd_pcm_lib_period_bytes(substream);
 406
 407        chip->dma_size = size;
 408        spin_lock_irqsave(&chip->reg_lock, flags);
 409        snd_es1688_reset(chip);
 410        snd_es1688_set_rate(chip, substream);
 411        snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
 412        snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
 413        snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 414        snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 415        if (runtime->channels == 1) {
 416                if (snd_pcm_format_width(runtime->format) == 8) {
 417                        /* 8. bit mono */
 418                        snd_es1688_write(chip, 0xb7, 0x51);
 419                        snd_es1688_write(chip, 0xb7, 0xd0);
 420                } else {
 421                        /* 16. bit mono */
 422                        snd_es1688_write(chip, 0xb7, 0x71);
 423                        snd_es1688_write(chip, 0xb7, 0xf4);
 424                }
 425        } else {
 426                if (snd_pcm_format_width(runtime->format) == 8) {
 427                        /* 8. bit stereo */
 428                        snd_es1688_write(chip, 0xb7, 0x51);
 429                        snd_es1688_write(chip, 0xb7, 0x98);
 430                } else {
 431                        /* 16. bit stereo */
 432                        snd_es1688_write(chip, 0xb7, 0x71);
 433                        snd_es1688_write(chip, 0xb7, 0xbc);
 434                }
 435        }
 436        snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 437        snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 438        spin_unlock_irqrestore(&chip->reg_lock, flags);
 439        /* --- */
 440        count = -count;
 441        snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 442        spin_lock_irqsave(&chip->reg_lock, flags);
 443        snd_es1688_write(chip, 0xa4, (unsigned char) count);
 444        snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 445        spin_unlock_irqrestore(&chip->reg_lock, flags);
 446        return 0;
 447}
 448
 449static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
 450                                      int cmd)
 451{
 452        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 453        return snd_es1688_trigger(chip, cmd, 0x0f);
 454}
 455
 456static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id)
 457{
 458        struct snd_es1688 *chip = dev_id;
 459
 460        if (chip->trigger_value == 0x05)        /* ok.. playback is active */
 461                snd_pcm_period_elapsed(chip->playback_substream);
 462        if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
 463                snd_pcm_period_elapsed(chip->capture_substream);
 464
 465        inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
 466        return IRQ_HANDLED;
 467}
 468
 469static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
 470{
 471        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 472        size_t ptr;
 473        
 474        if (chip->trigger_value != 0x05)
 475                return 0;
 476        ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 477        return bytes_to_frames(substream->runtime, ptr);
 478}
 479
 480static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
 481{
 482        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 483        size_t ptr;
 484        
 485        if (chip->trigger_value != 0x0f)
 486                return 0;
 487        ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 488        return bytes_to_frames(substream->runtime, ptr);
 489}
 490
 491/*
 492
 493 */
 494
 495static const struct snd_pcm_hardware snd_es1688_playback =
 496{
 497        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 498                                 SNDRV_PCM_INFO_MMAP_VALID),
 499        .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 500        .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 501        .rate_min =             4000,
 502        .rate_max =             48000,
 503        .channels_min =         1,
 504        .channels_max =         2,
 505        .buffer_bytes_max =     65536,
 506        .period_bytes_min =     64,
 507        .period_bytes_max =     65536,
 508        .periods_min =          1,
 509        .periods_max =          1024,
 510        .fifo_size =            0,
 511};
 512
 513static const struct snd_pcm_hardware snd_es1688_capture =
 514{
 515        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 516                                 SNDRV_PCM_INFO_MMAP_VALID),
 517        .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 518        .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 519        .rate_min =             4000,
 520        .rate_max =             48000,
 521        .channels_min =         1,
 522        .channels_max =         2,
 523        .buffer_bytes_max =     65536,
 524        .period_bytes_min =     64,
 525        .period_bytes_max =     65536,
 526        .periods_min =          1,
 527        .periods_max =          1024,
 528        .fifo_size =            0,
 529};
 530
 531/*
 532
 533 */
 534
 535static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
 536{
 537        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 538        struct snd_pcm_runtime *runtime = substream->runtime;
 539
 540        if (chip->capture_substream != NULL)
 541                return -EAGAIN;
 542        chip->playback_substream = substream;
 543        runtime->hw = snd_es1688_playback;
 544        snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 545                                      &hw_constraints_clocks);
 546        return 0;
 547}
 548
 549static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
 550{
 551        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 552        struct snd_pcm_runtime *runtime = substream->runtime;
 553
 554        if (chip->playback_substream != NULL)
 555                return -EAGAIN;
 556        chip->capture_substream = substream;
 557        runtime->hw = snd_es1688_capture;
 558        snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 559                                      &hw_constraints_clocks);
 560        return 0;
 561}
 562
 563static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
 564{
 565        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 566
 567        chip->playback_substream = NULL;
 568        return 0;
 569}
 570
 571static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
 572{
 573        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 574
 575        chip->capture_substream = NULL;
 576        return 0;
 577}
 578
 579static int snd_es1688_free(struct snd_es1688 *chip)
 580{
 581        if (chip->hardware != ES1688_HW_UNDEF)
 582                snd_es1688_init(chip, 0);
 583        release_and_free_resource(chip->res_port);
 584        if (chip->irq >= 0)
 585                free_irq(chip->irq, (void *) chip);
 586        if (chip->dma8 >= 0) {
 587                disable_dma(chip->dma8);
 588                free_dma(chip->dma8);
 589        }
 590        return 0;
 591}
 592
 593static int snd_es1688_dev_free(struct snd_device *device)
 594{
 595        struct snd_es1688 *chip = device->device_data;
 596        return snd_es1688_free(chip);
 597}
 598
 599static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
 600{
 601        static char tmp[16];
 602        sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
 603        return tmp;
 604}
 605
 606int snd_es1688_create(struct snd_card *card,
 607                      struct snd_es1688 *chip,
 608                      unsigned long port,
 609                      unsigned long mpu_port,
 610                      int irq,
 611                      int mpu_irq,
 612                      int dma8,
 613                      unsigned short hardware)
 614{
 615        static const struct snd_device_ops ops = {
 616                .dev_free =     snd_es1688_dev_free,
 617        };
 618                                
 619        int err;
 620
 621        if (chip == NULL)
 622                return -ENOMEM;
 623        chip->irq = -1;
 624        chip->dma8 = -1;
 625        chip->hardware = ES1688_HW_UNDEF;
 626        
 627        chip->res_port = request_region(port + 4, 12, "ES1688");
 628        if (chip->res_port == NULL) {
 629                snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
 630                err = -EBUSY;
 631                goto exit;
 632        }
 633
 634        err = request_irq(irq, snd_es1688_interrupt, 0, "ES1688", (void *) chip);
 635        if (err < 0) {
 636                snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
 637                goto exit;
 638        }
 639
 640        chip->irq = irq;
 641        card->sync_irq = chip->irq;
 642        err = request_dma(dma8, "ES1688");
 643
 644        if (err < 0) {
 645                snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
 646                goto exit;
 647        }
 648        chip->dma8 = dma8;
 649
 650        spin_lock_init(&chip->reg_lock);
 651        spin_lock_init(&chip->mixer_lock);
 652        chip->port = port;
 653        mpu_port &= ~0x000f;
 654        if (mpu_port < 0x300 || mpu_port > 0x330)
 655                mpu_port = 0;
 656        chip->mpu_port = mpu_port;
 657        chip->mpu_irq = mpu_irq;
 658        chip->hardware = hardware;
 659
 660        err = snd_es1688_probe(chip);
 661        if (err < 0)
 662                goto exit;
 663
 664        err = snd_es1688_init(chip, 1);
 665        if (err < 0)
 666                goto exit;
 667
 668        /* Register device */
 669        err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 670exit:
 671        if (err)
 672                snd_es1688_free(chip);
 673        return err;
 674}
 675
 676static const struct snd_pcm_ops snd_es1688_playback_ops = {
 677        .open =                 snd_es1688_playback_open,
 678        .close =                snd_es1688_playback_close,
 679        .prepare =              snd_es1688_playback_prepare,
 680        .trigger =              snd_es1688_playback_trigger,
 681        .pointer =              snd_es1688_playback_pointer,
 682};
 683
 684static const struct snd_pcm_ops snd_es1688_capture_ops = {
 685        .open =                 snd_es1688_capture_open,
 686        .close =                snd_es1688_capture_close,
 687        .prepare =              snd_es1688_capture_prepare,
 688        .trigger =              snd_es1688_capture_trigger,
 689        .pointer =              snd_es1688_capture_pointer,
 690};
 691
 692int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip, int device)
 693{
 694        struct snd_pcm *pcm;
 695        int err;
 696
 697        err = snd_pcm_new(card, "ESx688", device, 1, 1, &pcm);
 698        if (err < 0)
 699                return err;
 700
 701        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
 702        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
 703
 704        pcm->private_data = chip;
 705        pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
 706        strcpy(pcm->name, snd_es1688_chip_id(chip));
 707        chip->pcm = pcm;
 708
 709        snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, card->dev,
 710                                       64*1024, 64*1024);
 711        return 0;
 712}
 713
 714/*
 715 *  MIXER part
 716 */
 717
 718static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 719{
 720        static const char * const texts[8] = {
 721                "Mic", "Mic Master", "CD", "AOUT",
 722                "Mic1", "Mix", "Line", "Master"
 723        };
 724
 725        return snd_ctl_enum_info(uinfo, 1, 8, texts);
 726}
 727
 728static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 729{
 730        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 731        ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
 732        return 0;
 733}
 734
 735static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 736{
 737        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 738        unsigned long flags;
 739        unsigned char oval, nval;
 740        int change;
 741        
 742        if (ucontrol->value.enumerated.item[0] > 8)
 743                return -EINVAL;
 744        spin_lock_irqsave(&chip->reg_lock, flags);
 745        oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
 746        nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
 747        change = nval != oval;
 748        if (change)
 749                snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
 750        spin_unlock_irqrestore(&chip->reg_lock, flags);
 751        return change;
 752}
 753
 754#define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
 755{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 756  .info = snd_es1688_info_single, \
 757  .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
 758  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 759
 760static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 761{
 762        int mask = (kcontrol->private_value >> 16) & 0xff;
 763
 764        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 765        uinfo->count = 1;
 766        uinfo->value.integer.min = 0;
 767        uinfo->value.integer.max = mask;
 768        return 0;
 769}
 770
 771static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 772{
 773        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 774        unsigned long flags;
 775        int reg = kcontrol->private_value & 0xff;
 776        int shift = (kcontrol->private_value >> 8) & 0xff;
 777        int mask = (kcontrol->private_value >> 16) & 0xff;
 778        int invert = (kcontrol->private_value >> 24) & 0xff;
 779        
 780        spin_lock_irqsave(&chip->reg_lock, flags);
 781        ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
 782        spin_unlock_irqrestore(&chip->reg_lock, flags);
 783        if (invert)
 784                ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 785        return 0;
 786}
 787
 788static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 789{
 790        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 791        unsigned long flags;
 792        int reg = kcontrol->private_value & 0xff;
 793        int shift = (kcontrol->private_value >> 8) & 0xff;
 794        int mask = (kcontrol->private_value >> 16) & 0xff;
 795        int invert = (kcontrol->private_value >> 24) & 0xff;
 796        int change;
 797        unsigned char oval, nval;
 798        
 799        nval = (ucontrol->value.integer.value[0] & mask);
 800        if (invert)
 801                nval = mask - nval;
 802        nval <<= shift;
 803        spin_lock_irqsave(&chip->reg_lock, flags);
 804        oval = snd_es1688_mixer_read(chip, reg);
 805        nval = (oval & ~(mask << shift)) | nval;
 806        change = nval != oval;
 807        if (change)
 808                snd_es1688_mixer_write(chip, reg, nval);
 809        spin_unlock_irqrestore(&chip->reg_lock, flags);
 810        return change;
 811}
 812
 813#define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 814{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 815  .info = snd_es1688_info_double, \
 816  .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
 817  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
 818
 819static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 820{
 821        int mask = (kcontrol->private_value >> 24) & 0xff;
 822
 823        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 824        uinfo->count = 2;
 825        uinfo->value.integer.min = 0;
 826        uinfo->value.integer.max = mask;
 827        return 0;
 828}
 829
 830static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 831{
 832        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 833        unsigned long flags;
 834        int left_reg = kcontrol->private_value & 0xff;
 835        int right_reg = (kcontrol->private_value >> 8) & 0xff;
 836        int shift_left = (kcontrol->private_value >> 16) & 0x07;
 837        int shift_right = (kcontrol->private_value >> 19) & 0x07;
 838        int mask = (kcontrol->private_value >> 24) & 0xff;
 839        int invert = (kcontrol->private_value >> 22) & 1;
 840        unsigned char left, right;
 841        
 842        spin_lock_irqsave(&chip->reg_lock, flags);
 843        if (left_reg < 0xa0)
 844                left = snd_es1688_mixer_read(chip, left_reg);
 845        else
 846                left = snd_es1688_read(chip, left_reg);
 847        if (left_reg != right_reg) {
 848                if (right_reg < 0xa0) 
 849                        right = snd_es1688_mixer_read(chip, right_reg);
 850                else
 851                        right = snd_es1688_read(chip, right_reg);
 852        } else
 853                right = left;
 854        spin_unlock_irqrestore(&chip->reg_lock, flags);
 855        ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
 856        ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
 857        if (invert) {
 858                ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 859                ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 860        }
 861        return 0;
 862}
 863
 864static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 865{
 866        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 867        unsigned long flags;
 868        int left_reg = kcontrol->private_value & 0xff;
 869        int right_reg = (kcontrol->private_value >> 8) & 0xff;
 870        int shift_left = (kcontrol->private_value >> 16) & 0x07;
 871        int shift_right = (kcontrol->private_value >> 19) & 0x07;
 872        int mask = (kcontrol->private_value >> 24) & 0xff;
 873        int invert = (kcontrol->private_value >> 22) & 1;
 874        int change;
 875        unsigned char val1, val2, oval1, oval2;
 876        
 877        val1 = ucontrol->value.integer.value[0] & mask;
 878        val2 = ucontrol->value.integer.value[1] & mask;
 879        if (invert) {
 880                val1 = mask - val1;
 881                val2 = mask - val2;
 882        }
 883        val1 <<= shift_left;
 884        val2 <<= shift_right;
 885        spin_lock_irqsave(&chip->reg_lock, flags);
 886        if (left_reg != right_reg) {
 887                if (left_reg < 0xa0)
 888                        oval1 = snd_es1688_mixer_read(chip, left_reg);
 889                else
 890                        oval1 = snd_es1688_read(chip, left_reg);
 891                if (right_reg < 0xa0)
 892                        oval2 = snd_es1688_mixer_read(chip, right_reg);
 893                else
 894                        oval2 = snd_es1688_read(chip, right_reg);
 895                val1 = (oval1 & ~(mask << shift_left)) | val1;
 896                val2 = (oval2 & ~(mask << shift_right)) | val2;
 897                change = val1 != oval1 || val2 != oval2;
 898                if (change) {
 899                        if (left_reg < 0xa0)
 900                                snd_es1688_mixer_write(chip, left_reg, val1);
 901                        else
 902                                snd_es1688_write(chip, left_reg, val1);
 903                        if (right_reg < 0xa0)
 904                                snd_es1688_mixer_write(chip, right_reg, val1);
 905                        else
 906                                snd_es1688_write(chip, right_reg, val1);
 907                }
 908        } else {
 909                if (left_reg < 0xa0)
 910                        oval1 = snd_es1688_mixer_read(chip, left_reg);
 911                else
 912                        oval1 = snd_es1688_read(chip, left_reg);
 913                val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 914                change = val1 != oval1;
 915                if (change) {
 916                        if (left_reg < 0xa0)
 917                                snd_es1688_mixer_write(chip, left_reg, val1);
 918                        else
 919                                snd_es1688_write(chip, left_reg, val1);
 920                }
 921                        
 922        }
 923        spin_unlock_irqrestore(&chip->reg_lock, flags);
 924        return change;
 925}
 926
 927static const struct snd_kcontrol_new snd_es1688_controls[] = {
 928ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
 929ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
 930ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
 931ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
 932ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
 933ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
 934ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
 935ES1688_SINGLE("Beep Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
 936ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
 937ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
 938{
 939        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 940        .name = "Capture Source",
 941        .info = snd_es1688_info_mux,
 942        .get = snd_es1688_get_mux,
 943        .put = snd_es1688_put_mux,
 944},
 945};
 946
 947#define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
 948
 949static const unsigned char snd_es1688_init_table[][2] = {
 950        { ES1688_MASTER_DEV, 0 },
 951        { ES1688_PCM_DEV, 0 },
 952        { ES1688_LINE_DEV, 0 },
 953        { ES1688_CD_DEV, 0 },
 954        { ES1688_FM_DEV, 0 },
 955        { ES1688_MIC_DEV, 0 },
 956        { ES1688_AUX_DEV, 0 },
 957        { ES1688_SPEAKER_DEV, 0 },
 958        { ES1688_RECLEV_DEV, 0 },
 959        { ES1688_REC_DEV, 0x17 }
 960};
 961                                        
 962int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip)
 963{
 964        unsigned int idx;
 965        int err;
 966        unsigned char reg, val;
 967
 968        if (snd_BUG_ON(!chip || !card))
 969                return -EINVAL;
 970
 971        strcpy(card->mixername, snd_es1688_chip_id(chip));
 972
 973        for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
 974                err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip));
 975                if (err < 0)
 976                        return err;
 977        }
 978        for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
 979                reg = snd_es1688_init_table[idx][0];
 980                val = snd_es1688_init_table[idx][1];
 981                if (reg < 0xa0)
 982                        snd_es1688_mixer_write(chip, reg, val);
 983                else
 984                        snd_es1688_write(chip, reg, val);
 985        }
 986        return 0;
 987}
 988
 989EXPORT_SYMBOL(snd_es1688_mixer_write);
 990EXPORT_SYMBOL(snd_es1688_create);
 991EXPORT_SYMBOL(snd_es1688_pcm);
 992EXPORT_SYMBOL(snd_es1688_mixer);
 993