linux/sound/isa/es1688/es1688_lib.c
<<
>>
Prefs
   1/*
   2 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   3 *  Routines for control of ESS ES1688/688/488 chip
   4 *
   5 *
   6 *   This program is free software; you can redistribute it and/or modify
   7 *   it under the terms of the GNU General Public License as published by
   8 *   the Free Software Foundation; either version 2 of the License, or
   9 *   (at your option) any later version.
  10 *
  11 *   This program is distributed in the hope that it will be useful,
  12 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *   GNU General Public License for more details.
  15 *
  16 *   You should have received a copy of the GNU General Public License
  17 *   along with this program; if not, write to the Free Software
  18 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 *
  20 */
  21
  22#include <linux/init.h>
  23#include <linux/interrupt.h>
  24#include <linux/delay.h>
  25#include <linux/slab.h>
  26#include <linux/ioport.h>
  27#include <sound/core.h>
  28#include <sound/es1688.h>
  29#include <sound/initval.h>
  30
  31#include <asm/io.h>
  32#include <asm/dma.h>
  33
  34MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  35MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
  36MODULE_LICENSE("GPL");
  37
  38static int snd_es1688_dsp_command(struct snd_es1688 *chip, unsigned char val)
  39{
  40        int i;
  41
  42        for (i = 10000; i; i--)
  43                if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
  44                        outb(val, ES1688P(chip, COMMAND));
  45                        return 1;
  46                }
  47#ifdef CONFIG_SND_DEBUG
  48        printk(KERN_DEBUG "snd_es1688_dsp_command: timeout (0x%x)\n", val);
  49#endif
  50        return 0;
  51}
  52
  53static int snd_es1688_dsp_get_byte(struct snd_es1688 *chip)
  54{
  55        int i;
  56
  57        for (i = 1000; i; i--)
  58                if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
  59                        return inb(ES1688P(chip, READ));
  60        snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
  61        return -ENODEV;
  62}
  63
  64static int snd_es1688_write(struct snd_es1688 *chip,
  65                            unsigned char reg, unsigned char data)
  66{
  67        if (!snd_es1688_dsp_command(chip, reg))
  68                return 0;
  69        return snd_es1688_dsp_command(chip, data);
  70}
  71
  72static int snd_es1688_read(struct snd_es1688 *chip, unsigned char reg)
  73{
  74        /* Read a byte from an extended mode register of ES1688 */
  75        if (!snd_es1688_dsp_command(chip, 0xc0))
  76                return -1;
  77        if (!snd_es1688_dsp_command(chip, reg))
  78                return -1;
  79        return snd_es1688_dsp_get_byte(chip);
  80}
  81
  82void snd_es1688_mixer_write(struct snd_es1688 *chip,
  83                            unsigned char reg, unsigned char data)
  84{
  85        outb(reg, ES1688P(chip, MIXER_ADDR));
  86        udelay(10);
  87        outb(data, ES1688P(chip, MIXER_DATA));
  88        udelay(10);
  89}
  90
  91static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned char reg)
  92{
  93        unsigned char result;
  94
  95        outb(reg, ES1688P(chip, MIXER_ADDR));
  96        udelay(10);
  97        result = inb(ES1688P(chip, MIXER_DATA));
  98        udelay(10);
  99        return result;
 100}
 101
 102static int snd_es1688_reset(struct snd_es1688 *chip)
 103{
 104        int i;
 105
 106        outb(3, ES1688P(chip, RESET));          /* valid only for ESS chips, SB -> 1 */
 107        udelay(10);
 108        outb(0, ES1688P(chip, RESET));
 109        udelay(30);
 110        for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++);
 111        if (inb(ES1688P(chip, READ)) != 0xaa) {
 112                snd_printd("ess_reset at 0x%lx: failed!!!\n", chip->port);
 113                return -ENODEV;
 114        }
 115        snd_es1688_dsp_command(chip, 0xc6);     /* enable extended mode */
 116        return 0;
 117}
 118
 119static int snd_es1688_probe(struct snd_es1688 *chip)
 120{
 121        unsigned long flags;
 122        unsigned short major, minor, hw;
 123        int i;
 124
 125        /*
 126         *  initialization sequence
 127         */
 128
 129        spin_lock_irqsave(&chip->reg_lock, flags);      /* Some ESS1688 cards need this */
 130        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 131        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 132        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 133        inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 134        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 135        inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 136        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 137        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 138        inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 139        inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 140        inb(ES1688P(chip, ENABLE0));    /* ENABLE0 */
 141
 142        if (snd_es1688_reset(chip) < 0) {
 143                snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
 144                spin_unlock_irqrestore(&chip->reg_lock, flags);
 145                return -ENODEV;
 146        }
 147        snd_es1688_dsp_command(chip, 0xe7);     /* return identification */
 148
 149        for (i = 1000, major = minor = 0; i; i--) {
 150                if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
 151                        if (major == 0) {
 152                                major = inb(ES1688P(chip, READ));
 153                        } else {
 154                                minor = inb(ES1688P(chip, READ));
 155                        }
 156                }
 157        }
 158
 159        spin_unlock_irqrestore(&chip->reg_lock, flags);
 160
 161        snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
 162
 163        chip->version = (major << 8) | minor;
 164        if (!chip->version)
 165                return -ENODEV; /* probably SB */
 166
 167        hw = ES1688_HW_AUTO;
 168        switch (chip->version & 0xfff0) {
 169        case 0x4880:
 170                snd_printk(KERN_ERR "[0x%lx] ESS: AudioDrive ES488 detected, "
 171                           "but driver is in another place\n", chip->port);
 172                return -ENODEV;
 173        case 0x6880:
 174                hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
 175                break;
 176        default:
 177                snd_printk(KERN_ERR "[0x%lx] ESS: unknown AudioDrive chip "
 178                           "with version 0x%x (Jazz16 soundcard?)\n",
 179                           chip->port, chip->version);
 180                return -ENODEV;
 181        }
 182
 183        spin_lock_irqsave(&chip->reg_lock, flags);
 184        snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 185        snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 186        spin_unlock_irqrestore(&chip->reg_lock, flags);
 187
 188        /* enable joystick, but disable OPL3 */
 189        spin_lock_irqsave(&chip->mixer_lock, flags);
 190        snd_es1688_mixer_write(chip, 0x40, 0x01);
 191        spin_unlock_irqrestore(&chip->mixer_lock, flags);
 192
 193        return 0;
 194}
 195
 196static int snd_es1688_init(struct snd_es1688 * chip, int enable)
 197{
 198        static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
 199        unsigned long flags;
 200        int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
 201
 202        /* ok.. setup MPU-401 port and joystick and OPL3 */
 203        cfg = 0x01;             /* enable joystick, but disable OPL3 */
 204        if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
 205                tmp = (chip->mpu_port & 0x0f0) >> 4;
 206                if (tmp <= 3) {
 207                        switch (chip->mpu_irq) {
 208                        case 9:
 209                                tmp1 = 4;
 210                                break;
 211                        case 5:
 212                                tmp1 = 5;
 213                                break;
 214                        case 7:
 215                                tmp1 = 6;
 216                                break;
 217                        case 10:
 218                                tmp1 = 7;
 219                                break;
 220                        default:
 221                                tmp1 = 0;
 222                        }
 223                        if (tmp1) {
 224                                cfg |= (tmp << 3) | (tmp1 << 5);
 225                        }
 226                }
 227        }
 228#if 0
 229        snd_printk(KERN_DEBUG "mpu cfg = 0x%x\n", cfg);
 230#endif
 231        spin_lock_irqsave(&chip->reg_lock, flags);
 232        snd_es1688_mixer_write(chip, 0x40, cfg);
 233        spin_unlock_irqrestore(&chip->reg_lock, flags);
 234        /* --- */
 235        spin_lock_irqsave(&chip->reg_lock, flags);
 236        snd_es1688_read(chip, 0xb1);
 237        snd_es1688_read(chip, 0xb2);
 238        spin_unlock_irqrestore(&chip->reg_lock, flags);
 239        if (enable) {
 240                cfg = 0xf0;     /* enable only DMA counter interrupt */
 241                irq_bits = irqs[chip->irq & 0x0f];
 242                if (irq_bits < 0) {
 243                        snd_printk(KERN_ERR "[0x%lx] ESS: bad IRQ %d "
 244                                   "for ES1688 chip!!\n",
 245                                   chip->port, chip->irq);
 246#if 0
 247                        irq_bits = 0;
 248                        cfg = 0x10;
 249#endif
 250                        return -EINVAL;
 251                }
 252                spin_lock_irqsave(&chip->reg_lock, flags);
 253                snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
 254                spin_unlock_irqrestore(&chip->reg_lock, flags);
 255                cfg = 0xf0;     /* extended mode DMA enable */
 256                dma = chip->dma8;
 257                if (dma > 3 || dma == 2) {
 258                        snd_printk(KERN_ERR "[0x%lx] ESS: bad DMA channel %d "
 259                                   "for ES1688 chip!!\n", chip->port, dma);
 260#if 0
 261                        dma_bits = 0;
 262                        cfg = 0x00;     /* disable all DMA */
 263#endif
 264                        return -EINVAL;
 265                } else {
 266                        dma_bits = dma;
 267                        if (dma != 3)
 268                                dma_bits++;
 269                }
 270                spin_lock_irqsave(&chip->reg_lock, flags);
 271                snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
 272                spin_unlock_irqrestore(&chip->reg_lock, flags);
 273        } else {
 274                spin_lock_irqsave(&chip->reg_lock, flags);
 275                snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 276                snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 277                spin_unlock_irqrestore(&chip->reg_lock, flags);
 278        }
 279        spin_lock_irqsave(&chip->reg_lock, flags);
 280        snd_es1688_read(chip, 0xb1);
 281        snd_es1688_read(chip, 0xb2);
 282        snd_es1688_reset(chip);
 283        spin_unlock_irqrestore(&chip->reg_lock, flags);
 284        return 0;
 285}
 286
 287/*
 288
 289 */
 290
 291static struct snd_ratnum clocks[2] = {
 292        {
 293                .num = 795444,
 294                .den_min = 1,
 295                .den_max = 128,
 296                .den_step = 1,
 297        },
 298        {
 299                .num = 397722,
 300                .den_min = 1,
 301                .den_max = 128,
 302                .den_step = 1,
 303        }
 304};
 305
 306static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
 307        .nrats = 2,
 308        .rats = clocks,
 309};
 310
 311static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
 312{
 313        struct snd_pcm_runtime *runtime = substream->runtime;
 314        unsigned int bits, divider;
 315
 316        if (runtime->rate_num == clocks[0].num)
 317                bits = 256 - runtime->rate_den;
 318        else
 319                bits = 128 - runtime->rate_den;
 320        /* set filter register */
 321        divider = 256 - 7160000*20/(8*82*runtime->rate);
 322        /* write result to hardware */
 323        snd_es1688_write(chip, 0xa1, bits);
 324        snd_es1688_write(chip, 0xa2, divider);
 325}
 326
 327static int snd_es1688_ioctl(struct snd_pcm_substream *substream,
 328                            unsigned int cmd, void *arg)
 329{
 330        return snd_pcm_lib_ioctl(substream, cmd, arg);
 331}
 332
 333static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
 334{
 335        int val;
 336
 337        if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 338                value = 0x00;
 339        } else if (cmd != SNDRV_PCM_TRIGGER_START) {
 340                return -EINVAL;
 341        }
 342        spin_lock(&chip->reg_lock);
 343        chip->trigger_value = value;
 344        val = snd_es1688_read(chip, 0xb8);
 345        if ((val < 0) || (val & 0x0f) == value) {
 346                spin_unlock(&chip->reg_lock);
 347                return -EINVAL; /* something is wrong */
 348        }
 349#if 0
 350        printk(KERN_DEBUG "trigger: val = 0x%x, value = 0x%x\n", val, value);
 351        printk(KERN_DEBUG "trigger: pointer = 0x%x\n",
 352               snd_dma_pointer(chip->dma8, chip->dma_size));
 353#endif
 354        snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
 355        spin_unlock(&chip->reg_lock);
 356        return 0;
 357}
 358
 359static int snd_es1688_hw_params(struct snd_pcm_substream *substream,
 360                                struct snd_pcm_hw_params *hw_params)
 361{
 362        return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 363}
 364
 365static int snd_es1688_hw_free(struct snd_pcm_substream *substream)
 366{
 367        return snd_pcm_lib_free_pages(substream);
 368}
 369
 370static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
 371{
 372        unsigned long flags;
 373        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 374        struct snd_pcm_runtime *runtime = substream->runtime;
 375        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 376        unsigned int count = snd_pcm_lib_period_bytes(substream);
 377
 378        chip->dma_size = size;
 379        spin_lock_irqsave(&chip->reg_lock, flags);
 380        snd_es1688_reset(chip);
 381        snd_es1688_set_rate(chip, substream);
 382        snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
 383        snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 384        snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 385        if (runtime->channels == 1) {
 386                if (snd_pcm_format_width(runtime->format) == 8) {
 387                        /* 8. bit mono */
 388                        snd_es1688_write(chip, 0xb6, 0x80);
 389                        snd_es1688_write(chip, 0xb7, 0x51);
 390                        snd_es1688_write(chip, 0xb7, 0xd0);
 391                } else {
 392                        /* 16. bit mono */
 393                        snd_es1688_write(chip, 0xb6, 0x00);
 394                        snd_es1688_write(chip, 0xb7, 0x71);
 395                        snd_es1688_write(chip, 0xb7, 0xf4);
 396                }
 397        } else {
 398                if (snd_pcm_format_width(runtime->format) == 8) {
 399                        /* 8. bit stereo */
 400                        snd_es1688_write(chip, 0xb6, 0x80);
 401                        snd_es1688_write(chip, 0xb7, 0x51);
 402                        snd_es1688_write(chip, 0xb7, 0x98);
 403                } else {
 404                        /* 16. bit stereo */
 405                        snd_es1688_write(chip, 0xb6, 0x00);
 406                        snd_es1688_write(chip, 0xb7, 0x71);
 407                        snd_es1688_write(chip, 0xb7, 0xbc);
 408                }
 409        }
 410        snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 411        snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 412        snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
 413        spin_unlock_irqrestore(&chip->reg_lock, flags);
 414        /* --- */
 415        count = -count;
 416        snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 417        spin_lock_irqsave(&chip->reg_lock, flags);
 418        snd_es1688_write(chip, 0xa4, (unsigned char) count);
 419        snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 420        spin_unlock_irqrestore(&chip->reg_lock, flags);
 421        return 0;
 422}
 423
 424static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
 425                                       int cmd)
 426{
 427        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 428        return snd_es1688_trigger(chip, cmd, 0x05);
 429}
 430
 431static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
 432{
 433        unsigned long flags;
 434        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 435        struct snd_pcm_runtime *runtime = substream->runtime;
 436        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 437        unsigned int count = snd_pcm_lib_period_bytes(substream);
 438
 439        chip->dma_size = size;
 440        spin_lock_irqsave(&chip->reg_lock, flags);
 441        snd_es1688_reset(chip);
 442        snd_es1688_set_rate(chip, substream);
 443        snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
 444        snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
 445        snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 446        snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 447        if (runtime->channels == 1) {
 448                if (snd_pcm_format_width(runtime->format) == 8) {
 449                        /* 8. bit mono */
 450                        snd_es1688_write(chip, 0xb7, 0x51);
 451                        snd_es1688_write(chip, 0xb7, 0xd0);
 452                } else {
 453                        /* 16. bit mono */
 454                        snd_es1688_write(chip, 0xb7, 0x71);
 455                        snd_es1688_write(chip, 0xb7, 0xf4);
 456                }
 457        } else {
 458                if (snd_pcm_format_width(runtime->format) == 8) {
 459                        /* 8. bit stereo */
 460                        snd_es1688_write(chip, 0xb7, 0x51);
 461                        snd_es1688_write(chip, 0xb7, 0x98);
 462                } else {
 463                        /* 16. bit stereo */
 464                        snd_es1688_write(chip, 0xb7, 0x71);
 465                        snd_es1688_write(chip, 0xb7, 0xbc);
 466                }
 467        }
 468        snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 469        snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 470        spin_unlock_irqrestore(&chip->reg_lock, flags);
 471        /* --- */
 472        count = -count;
 473        snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 474        spin_lock_irqsave(&chip->reg_lock, flags);
 475        snd_es1688_write(chip, 0xa4, (unsigned char) count);
 476        snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 477        spin_unlock_irqrestore(&chip->reg_lock, flags);
 478        return 0;
 479}
 480
 481static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
 482                                      int cmd)
 483{
 484        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 485        return snd_es1688_trigger(chip, cmd, 0x0f);
 486}
 487
 488static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id)
 489{
 490        struct snd_es1688 *chip = dev_id;
 491
 492        if (chip->trigger_value == 0x05)        /* ok.. playback is active */
 493                snd_pcm_period_elapsed(chip->playback_substream);
 494        if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
 495                snd_pcm_period_elapsed(chip->capture_substream);
 496
 497        inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
 498        return IRQ_HANDLED;
 499}
 500
 501static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
 502{
 503        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 504        size_t ptr;
 505        
 506        if (chip->trigger_value != 0x05)
 507                return 0;
 508        ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 509        return bytes_to_frames(substream->runtime, ptr);
 510}
 511
 512static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
 513{
 514        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 515        size_t ptr;
 516        
 517        if (chip->trigger_value != 0x0f)
 518                return 0;
 519        ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 520        return bytes_to_frames(substream->runtime, ptr);
 521}
 522
 523/*
 524
 525 */
 526
 527static struct snd_pcm_hardware snd_es1688_playback =
 528{
 529        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 530                                 SNDRV_PCM_INFO_MMAP_VALID),
 531        .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 532        .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 533        .rate_min =             4000,
 534        .rate_max =             48000,
 535        .channels_min =         1,
 536        .channels_max =         2,
 537        .buffer_bytes_max =     65536,
 538        .period_bytes_min =     64,
 539        .period_bytes_max =     65536,
 540        .periods_min =          1,
 541        .periods_max =          1024,
 542        .fifo_size =            0,
 543};
 544
 545static struct snd_pcm_hardware snd_es1688_capture =
 546{
 547        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 548                                 SNDRV_PCM_INFO_MMAP_VALID),
 549        .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 550        .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 551        .rate_min =             4000,
 552        .rate_max =             48000,
 553        .channels_min =         1,
 554        .channels_max =         2,
 555        .buffer_bytes_max =     65536,
 556        .period_bytes_min =     64,
 557        .period_bytes_max =     65536,
 558        .periods_min =          1,
 559        .periods_max =          1024,
 560        .fifo_size =            0,
 561};
 562
 563/*
 564
 565 */
 566
 567static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
 568{
 569        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 570        struct snd_pcm_runtime *runtime = substream->runtime;
 571
 572        if (chip->capture_substream != NULL)
 573                return -EAGAIN;
 574        chip->playback_substream = substream;
 575        runtime->hw = snd_es1688_playback;
 576        snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 577                                      &hw_constraints_clocks);
 578        return 0;
 579}
 580
 581static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
 582{
 583        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 584        struct snd_pcm_runtime *runtime = substream->runtime;
 585
 586        if (chip->playback_substream != NULL)
 587                return -EAGAIN;
 588        chip->capture_substream = substream;
 589        runtime->hw = snd_es1688_capture;
 590        snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 591                                      &hw_constraints_clocks);
 592        return 0;
 593}
 594
 595static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
 596{
 597        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 598
 599        chip->playback_substream = NULL;
 600        return 0;
 601}
 602
 603static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
 604{
 605        struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 606
 607        chip->capture_substream = NULL;
 608        return 0;
 609}
 610
 611static int snd_es1688_free(struct snd_es1688 *chip)
 612{
 613        if (chip->res_port) {
 614                snd_es1688_init(chip, 0);
 615                release_and_free_resource(chip->res_port);
 616        }
 617        if (chip->irq >= 0)
 618                free_irq(chip->irq, (void *) chip);
 619        if (chip->dma8 >= 0) {
 620                disable_dma(chip->dma8);
 621                free_dma(chip->dma8);
 622        }
 623        kfree(chip);
 624        return 0;
 625}
 626
 627static int snd_es1688_dev_free(struct snd_device *device)
 628{
 629        struct snd_es1688 *chip = device->device_data;
 630        return snd_es1688_free(chip);
 631}
 632
 633static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
 634{
 635        static char tmp[16];
 636        sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
 637        return tmp;
 638}
 639
 640int snd_es1688_create(struct snd_card *card,
 641                      unsigned long port,
 642                      unsigned long mpu_port,
 643                      int irq,
 644                      int mpu_irq,
 645                      int dma8,
 646                      unsigned short hardware,
 647                      struct snd_es1688 **rchip)
 648{
 649        static struct snd_device_ops ops = {
 650                .dev_free =     snd_es1688_dev_free,
 651        };
 652                                
 653        struct snd_es1688 *chip;
 654        int err;
 655
 656        *rchip = NULL;
 657        chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 658        if (chip == NULL)
 659                return -ENOMEM;
 660        chip->irq = -1;
 661        chip->dma8 = -1;
 662        
 663        if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) {
 664                snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
 665                snd_es1688_free(chip);
 666                return -EBUSY;
 667        }
 668        if (request_irq(irq, snd_es1688_interrupt, IRQF_DISABLED, "ES1688", (void *) chip)) {
 669                snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
 670                snd_es1688_free(chip);
 671                return -EBUSY;
 672        }
 673        chip->irq = irq;
 674        if (request_dma(dma8, "ES1688")) {
 675                snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
 676                snd_es1688_free(chip);
 677                return -EBUSY;
 678        }
 679        chip->dma8 = dma8;
 680
 681        spin_lock_init(&chip->reg_lock);
 682        spin_lock_init(&chip->mixer_lock);
 683        chip->card = card;
 684        chip->port = port;
 685        mpu_port &= ~0x000f;
 686        if (mpu_port < 0x300 || mpu_port > 0x330)
 687                mpu_port = 0;
 688        chip->mpu_port = mpu_port;
 689        chip->mpu_irq = mpu_irq;
 690        chip->hardware = hardware;
 691
 692        if ((err = snd_es1688_probe(chip)) < 0) {
 693                snd_es1688_free(chip);
 694                return err;
 695        }
 696        if ((err = snd_es1688_init(chip, 1)) < 0) {
 697                snd_es1688_free(chip);
 698                return err;
 699        }
 700
 701        /* Register device */
 702        if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 703                snd_es1688_free(chip);
 704                return err;
 705        }
 706
 707        *rchip = chip;
 708        return 0;
 709}
 710
 711static struct snd_pcm_ops snd_es1688_playback_ops = {
 712        .open =                 snd_es1688_playback_open,
 713        .close =                snd_es1688_playback_close,
 714        .ioctl =                snd_es1688_ioctl,
 715        .hw_params =            snd_es1688_hw_params,
 716        .hw_free =              snd_es1688_hw_free,
 717        .prepare =              snd_es1688_playback_prepare,
 718        .trigger =              snd_es1688_playback_trigger,
 719        .pointer =              snd_es1688_playback_pointer,
 720};
 721
 722static struct snd_pcm_ops snd_es1688_capture_ops = {
 723        .open =                 snd_es1688_capture_open,
 724        .close =                snd_es1688_capture_close,
 725        .ioctl =                snd_es1688_ioctl,
 726        .hw_params =            snd_es1688_hw_params,
 727        .hw_free =              snd_es1688_hw_free,
 728        .prepare =              snd_es1688_capture_prepare,
 729        .trigger =              snd_es1688_capture_trigger,
 730        .pointer =              snd_es1688_capture_pointer,
 731};
 732
 733int snd_es1688_pcm(struct snd_es1688 * chip, int device, struct snd_pcm ** rpcm)
 734{
 735        struct snd_pcm *pcm;
 736        int err;
 737
 738        if ((err = snd_pcm_new(chip->card, "ESx688", device, 1, 1, &pcm)) < 0)
 739                return err;
 740
 741        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
 742        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
 743
 744        pcm->private_data = chip;
 745        pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
 746        sprintf(pcm->name, snd_es1688_chip_id(chip));
 747        chip->pcm = pcm;
 748
 749        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 750                                              snd_dma_isa_data(),
 751                                              64*1024, 64*1024);
 752
 753        if (rpcm)
 754                *rpcm = pcm;
 755        return 0;
 756}
 757
 758/*
 759 *  MIXER part
 760 */
 761
 762static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 763{
 764        static char *texts[9] = {
 765                "Mic", "Mic Master", "CD", "AOUT",
 766                "Mic1", "Mix", "Line", "Master"
 767        };
 768
 769        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 770        uinfo->count = 1;
 771        uinfo->value.enumerated.items = 8;
 772        if (uinfo->value.enumerated.item > 7)
 773                uinfo->value.enumerated.item = 7;
 774        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 775        return 0;
 776}
 777
 778static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 779{
 780        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 781        ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
 782        return 0;
 783}
 784
 785static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 786{
 787        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 788        unsigned long flags;
 789        unsigned char oval, nval;
 790        int change;
 791        
 792        if (ucontrol->value.enumerated.item[0] > 8)
 793                return -EINVAL;
 794        spin_lock_irqsave(&chip->reg_lock, flags);
 795        oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
 796        nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
 797        change = nval != oval;
 798        if (change)
 799                snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
 800        spin_unlock_irqrestore(&chip->reg_lock, flags);
 801        return change;
 802}
 803
 804#define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
 805{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 806  .info = snd_es1688_info_single, \
 807  .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
 808  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 809
 810static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 811{
 812        int mask = (kcontrol->private_value >> 16) & 0xff;
 813
 814        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 815        uinfo->count = 1;
 816        uinfo->value.integer.min = 0;
 817        uinfo->value.integer.max = mask;
 818        return 0;
 819}
 820
 821static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 822{
 823        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 824        unsigned long flags;
 825        int reg = kcontrol->private_value & 0xff;
 826        int shift = (kcontrol->private_value >> 8) & 0xff;
 827        int mask = (kcontrol->private_value >> 16) & 0xff;
 828        int invert = (kcontrol->private_value >> 24) & 0xff;
 829        
 830        spin_lock_irqsave(&chip->reg_lock, flags);
 831        ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
 832        spin_unlock_irqrestore(&chip->reg_lock, flags);
 833        if (invert)
 834                ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 835        return 0;
 836}
 837
 838static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 839{
 840        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 841        unsigned long flags;
 842        int reg = kcontrol->private_value & 0xff;
 843        int shift = (kcontrol->private_value >> 8) & 0xff;
 844        int mask = (kcontrol->private_value >> 16) & 0xff;
 845        int invert = (kcontrol->private_value >> 24) & 0xff;
 846        int change;
 847        unsigned char oval, nval;
 848        
 849        nval = (ucontrol->value.integer.value[0] & mask);
 850        if (invert)
 851                nval = mask - nval;
 852        nval <<= shift;
 853        spin_lock_irqsave(&chip->reg_lock, flags);
 854        oval = snd_es1688_mixer_read(chip, reg);
 855        nval = (oval & ~(mask << shift)) | nval;
 856        change = nval != oval;
 857        if (change)
 858                snd_es1688_mixer_write(chip, reg, nval);
 859        spin_unlock_irqrestore(&chip->reg_lock, flags);
 860        return change;
 861}
 862
 863#define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 864{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 865  .info = snd_es1688_info_double, \
 866  .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
 867  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
 868
 869static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 870{
 871        int mask = (kcontrol->private_value >> 24) & 0xff;
 872
 873        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 874        uinfo->count = 2;
 875        uinfo->value.integer.min = 0;
 876        uinfo->value.integer.max = mask;
 877        return 0;
 878}
 879
 880static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 881{
 882        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 883        unsigned long flags;
 884        int left_reg = kcontrol->private_value & 0xff;
 885        int right_reg = (kcontrol->private_value >> 8) & 0xff;
 886        int shift_left = (kcontrol->private_value >> 16) & 0x07;
 887        int shift_right = (kcontrol->private_value >> 19) & 0x07;
 888        int mask = (kcontrol->private_value >> 24) & 0xff;
 889        int invert = (kcontrol->private_value >> 22) & 1;
 890        unsigned char left, right;
 891        
 892        spin_lock_irqsave(&chip->reg_lock, flags);
 893        if (left_reg < 0xa0)
 894                left = snd_es1688_mixer_read(chip, left_reg);
 895        else
 896                left = snd_es1688_read(chip, left_reg);
 897        if (left_reg != right_reg) {
 898                if (right_reg < 0xa0) 
 899                        right = snd_es1688_mixer_read(chip, right_reg);
 900                else
 901                        right = snd_es1688_read(chip, right_reg);
 902        } else
 903                right = left;
 904        spin_unlock_irqrestore(&chip->reg_lock, flags);
 905        ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
 906        ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
 907        if (invert) {
 908                ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 909                ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 910        }
 911        return 0;
 912}
 913
 914static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 915{
 916        struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 917        unsigned long flags;
 918        int left_reg = kcontrol->private_value & 0xff;
 919        int right_reg = (kcontrol->private_value >> 8) & 0xff;
 920        int shift_left = (kcontrol->private_value >> 16) & 0x07;
 921        int shift_right = (kcontrol->private_value >> 19) & 0x07;
 922        int mask = (kcontrol->private_value >> 24) & 0xff;
 923        int invert = (kcontrol->private_value >> 22) & 1;
 924        int change;
 925        unsigned char val1, val2, oval1, oval2;
 926        
 927        val1 = ucontrol->value.integer.value[0] & mask;
 928        val2 = ucontrol->value.integer.value[1] & mask;
 929        if (invert) {
 930                val1 = mask - val1;
 931                val2 = mask - val2;
 932        }
 933        val1 <<= shift_left;
 934        val2 <<= shift_right;
 935        spin_lock_irqsave(&chip->reg_lock, flags);
 936        if (left_reg != right_reg) {
 937                if (left_reg < 0xa0)
 938                        oval1 = snd_es1688_mixer_read(chip, left_reg);
 939                else
 940                        oval1 = snd_es1688_read(chip, left_reg);
 941                if (right_reg < 0xa0)
 942                        oval2 = snd_es1688_mixer_read(chip, right_reg);
 943                else
 944                        oval2 = snd_es1688_read(chip, right_reg);
 945                val1 = (oval1 & ~(mask << shift_left)) | val1;
 946                val2 = (oval2 & ~(mask << shift_right)) | val2;
 947                change = val1 != oval1 || val2 != oval2;
 948                if (change) {
 949                        if (left_reg < 0xa0)
 950                                snd_es1688_mixer_write(chip, left_reg, val1);
 951                        else
 952                                snd_es1688_write(chip, left_reg, val1);
 953                        if (right_reg < 0xa0)
 954                                snd_es1688_mixer_write(chip, right_reg, val1);
 955                        else
 956                                snd_es1688_write(chip, right_reg, val1);
 957                }
 958        } else {
 959                if (left_reg < 0xa0)
 960                        oval1 = snd_es1688_mixer_read(chip, left_reg);
 961                else
 962                        oval1 = snd_es1688_read(chip, left_reg);
 963                val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 964                change = val1 != oval1;
 965                if (change) {
 966                        if (left_reg < 0xa0)
 967                                snd_es1688_mixer_write(chip, left_reg, val1);
 968                        else
 969                                snd_es1688_write(chip, left_reg, val1);
 970                }
 971                        
 972        }
 973        spin_unlock_irqrestore(&chip->reg_lock, flags);
 974        return change;
 975}
 976
 977static struct snd_kcontrol_new snd_es1688_controls[] = {
 978ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
 979ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
 980ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
 981ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
 982ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
 983ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
 984ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
 985ES1688_SINGLE("PC Speaker Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
 986ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
 987ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
 988{
 989        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 990        .name = "Capture Source",
 991        .info = snd_es1688_info_mux,
 992        .get = snd_es1688_get_mux,
 993        .put = snd_es1688_put_mux,
 994},
 995};
 996
 997#define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
 998
 999static unsigned char snd_es1688_init_table[][2] = {
1000        { ES1688_MASTER_DEV, 0 },
1001        { ES1688_PCM_DEV, 0 },
1002        { ES1688_LINE_DEV, 0 },
1003        { ES1688_CD_DEV, 0 },
1004        { ES1688_FM_DEV, 0 },
1005        { ES1688_MIC_DEV, 0 },
1006        { ES1688_AUX_DEV, 0 },
1007        { ES1688_SPEAKER_DEV, 0 },
1008        { ES1688_RECLEV_DEV, 0 },
1009        { ES1688_REC_DEV, 0x17 }
1010};
1011                                        
1012int snd_es1688_mixer(struct snd_es1688 *chip)
1013{
1014        struct snd_card *card;
1015        unsigned int idx;
1016        int err;
1017        unsigned char reg, val;
1018
1019        if (snd_BUG_ON(!chip || !chip->card))
1020                return -EINVAL;
1021
1022        card = chip->card;
1023
1024        strcpy(card->mixername, snd_es1688_chip_id(chip));
1025
1026        for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1027                if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1028                        return err;
1029        }
1030        for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1031                reg = snd_es1688_init_table[idx][0];
1032                val = snd_es1688_init_table[idx][1];
1033                if (reg < 0xa0)
1034                        snd_es1688_mixer_write(chip, reg, val);
1035                else
1036                        snd_es1688_write(chip, reg, val);
1037        }
1038        return 0;
1039}
1040
1041EXPORT_SYMBOL(snd_es1688_mixer_write);
1042EXPORT_SYMBOL(snd_es1688_create);
1043EXPORT_SYMBOL(snd_es1688_pcm);
1044EXPORT_SYMBOL(snd_es1688_mixer);
1045
1046/*
1047 *  INIT part
1048 */
1049
1050static int __init alsa_es1688_init(void)
1051{
1052        return 0;
1053}
1054
1055static void __exit alsa_es1688_exit(void)
1056{
1057}
1058
1059module_init(alsa_es1688_init)
1060module_exit(alsa_es1688_exit)
1061