sound/isa/es1688/es1688_lib.c

   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
  20 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  21 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
  22 MODULE_LICENSE("GPL");
  23
  24 static 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
  39 static 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
  50 static 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
  58 static 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
  68 void 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
  77 static 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
  88 int 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 }
 104 EXPORT_SYMBOL(snd_es1688_reset);
 105
 106 static 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
 181 static 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
 276 static 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
 291 static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
 292         .nrats = 2,
 293         .rats = clocks,
 294 };
 295
 296 static 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
 312 static 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
 338 static 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
 392 static 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
 399 static 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
 449 static 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
 456 static 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
 469 static 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
 480 static 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
 495 static 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
 513 static 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
 535 static 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
 549 static 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
 563 static 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
 571 static 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
 579 static 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
 593 static 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
 599 static 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
 606 int 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);
 670 exit:
 671         if (err)
 672                 snd_es1688_free(chip);
 673         return err;
 674 }
 675
 676 static 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
 684 static 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
 692 int 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
 718 static 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
 728 static 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
 735 static 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
 760 static 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
 771 static 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
 788 static 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
 819 static 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
 830 static 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
 864 static 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
 927 static const struct snd_kcontrol_new snd_es1688_controls[] = {
 928 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
 929 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
 930 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
 931 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
 932 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
 933 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
 934 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
 935 ES1688_SINGLE("Beep Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
 936 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
 937 ES1688_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
 949 static 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
 962 int 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                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
 975                         return err;
 976         }
 977         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
 978                 reg = snd_es1688_init_table[idx][0];
 979                 val = snd_es1688_init_table[idx][1];
 980                 if (reg < 0xa0)
 981                         snd_es1688_mixer_write(chip, reg, val);
 982                 else
 983                         snd_es1688_write(chip, reg, val);
 984         }
 985         return 0;
 986 }
 987
 988 EXPORT_SYMBOL(snd_es1688_mixer_write);
 989 EXPORT_SYMBOL(snd_es1688_create);
 990 EXPORT_SYMBOL(snd_es1688_pcm);
 991 EXPORT_SYMBOL(snd_es1688_mixer);