sound/isa/es1688/es1688_lib.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
  23 #include <linux/init.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/delay.h>
  26 #include <linux/slab.h>
  27 #include <linux/ioport.h>
  28 #include <sound/core.h>
  29 #include <sound/es1688.h>
  30 #include <sound/initval.h>
  31
  32 #include <asm/io.h>
  33 #include <asm/dma.h>
  34
  35 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  36 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
  37 MODULE_CLASSES("{sound}");
  38 MODULE_LICENSE("GPL");
  39
  40 static int snd_es1688_dsp_command(es1688_t *chip, unsigned char val)
  41 {
  42         int i;
  43
  44         for (i = 10000; i; i--)
  45                 if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
  46                         outb(val, ES1688P(chip, COMMAND));
  47                         return 1;
  48                 }
  49 #ifdef CONFIG_SND_DEBUG
  50         printk("snd_es1688_dsp_command: timeout (0x%x)\n", val);
  51 #endif
  52         return 0;
  53 }
  54
  55 static int snd_es1688_dsp_get_byte(es1688_t *chip)
  56 {
  57         int i;
  58
  59         for (i = 1000; i; i--)
  60                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
  61                         return inb(ES1688P(chip, READ));
  62         snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
  63         return -ENODEV;
  64 }
  65
  66 static int snd_es1688_write(es1688_t *chip,
  67                             unsigned char reg, unsigned char data)
  68 {
  69         if (!snd_es1688_dsp_command(chip, reg))
  70                 return 0;
  71         return snd_es1688_dsp_command(chip, data);
  72 }
  73
  74 int snd_es1688_read(es1688_t *chip, unsigned char reg)
  75 {
  76         /* Read a byte from an extended mode register of ES1688 */
  77         if (!snd_es1688_dsp_command(chip, 0xc0))
  78                 return -1;
  79         if (!snd_es1688_dsp_command(chip, reg))
  80                 return -1;
  81         return snd_es1688_dsp_get_byte(chip);
  82 }
  83
  84 void snd_es1688_mixer_write(es1688_t *chip,
  85                             unsigned char reg, unsigned char data)
  86 {
  87         outb(reg, ES1688P(chip, MIXER_ADDR));
  88         udelay(10);
  89         outb(data, ES1688P(chip, MIXER_DATA));
  90         udelay(10);
  91 }
  92
  93 unsigned char snd_es1688_mixer_read(es1688_t *chip, unsigned char reg)
  94 {
  95         unsigned char result;
  96
  97         outb(reg, ES1688P(chip, MIXER_ADDR));
  98         udelay(10);
  99         result = inb(ES1688P(chip, MIXER_DATA));
 100         udelay(10);
 101         return result;
 102 }
 103
 104 static int snd_es1688_reset(es1688_t *chip)
 105 {
 106         int i;
 107
 108         outb(3, ES1688P(chip, RESET));          /* valid only for ESS chips, SB -> 1 */
 109         udelay(10);
 110         outb(0, ES1688P(chip, RESET));
 111         udelay(30);
 112         for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++);
 113         if (inb(ES1688P(chip, READ)) != 0xaa) {
 114                 snd_printd("ess_reset at 0x%lx: failed!!!\n", chip->port);
 115                 return -ENODEV;
 116         }
 117         snd_es1688_dsp_command(chip, 0xc6);     /* enable extended mode */
 118         return 0;
 119 }
 120
 121 static int snd_es1688_probe(es1688_t *chip)
 122 {
 123         unsigned long flags;
 124         unsigned short major, minor, hw;
 125         int i;
 126
 127         /*
 128          *  initialization sequence
 129          */
 130
 131         spin_lock_irqsave(&chip->reg_lock, flags);      /* Some ESS1688 cards need this */
 132         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 133         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 134         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 135         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 136         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 137         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 138         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 139         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 140         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 141         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 142         inb(ES1688P(chip, ENABLE0));    /* ENABLE0 */
 143
 144         if (snd_es1688_reset(chip) < 0) {
 145                 snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
 146                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 147                 return -ENODEV;
 148         }
 149         snd_es1688_dsp_command(chip, 0xe7);     /* return identification */
 150
 151         for (i = 1000, major = minor = 0; i; i--) {
 152                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
 153                         if (major == 0) {
 154                                 major = inb(ES1688P(chip, READ));
 155                         } else {
 156                                 minor = inb(ES1688P(chip, READ));
 157                         }
 158                 }
 159         }
 160
 161         spin_unlock_irqrestore(&chip->reg_lock, flags);
 162
 163         snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
 164
 165         chip->version = (major << 8) | minor;
 166         if (!chip->version)
 167                 return -ENODEV; /* probably SB */
 168
 169         hw = ES1688_HW_AUTO;
 170         switch (chip->version & 0xfff0) {
 171         case 0x4880:
 172                 snd_printk("[0x%lx] ESS: AudioDrive ES488 detected, but driver is in another place\n", chip->port);
 173                 return -ENODEV;
 174         case 0x6880:
 175                 hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
 176                 break;
 177         default:
 178                 snd_printk("[0x%lx] ESS: unknown AudioDrive chip with version 0x%x (Jazz16 soundcard?)\n", chip->port, chip->version);
 179                 return -ENODEV;
 180         }
 181
 182         spin_lock_irqsave(&chip->reg_lock, flags);
 183         snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 184         snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 185         spin_unlock_irqrestore(&chip->reg_lock, flags);
 186
 187         /* enable joystick, but disable OPL3 */
 188         spin_lock_irqsave(&chip->mixer_lock, flags);
 189         snd_es1688_mixer_write(chip, 0x40, 0x01);
 190         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 191
 192         return 0;
 193 }
 194
 195 static int snd_es1688_init(es1688_t * chip, int enable)
 196 {
 197         static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
 198         unsigned long flags;
 199         int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
 200
 201         /* ok.. setup MPU-401 port and joystick and OPL3 */
 202         cfg = 0x01;             /* enable joystick, but disable OPL3 */
 203         if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
 204                 tmp = (chip->mpu_port & 0x0f0) >> 4;
 205                 if (tmp <= 3) {
 206                         switch (chip->mpu_irq) {
 207                         case 9:
 208                                 tmp1 = 4;
 209                                 break;
 210                         case 5:
 211                                 tmp1 = 5;
 212                                 break;
 213                         case 7:
 214                                 tmp1 = 6;
 215                                 break;
 216                         case 10:
 217                                 tmp1 = 7;
 218                                 break;
 219                         default:
 220                                 tmp1 = 0;
 221                         }
 222                         if (tmp1) {
 223                                 cfg |= (tmp << 3) | (tmp1 << 5);
 224                         }
 225                 }
 226         }
 227 #if 0
 228         snd_printk("mpu cfg = 0x%x\n", cfg);
 229 #endif
 230         spin_lock_irqsave(&chip->reg_lock, flags);
 231         snd_es1688_mixer_write(chip, 0x40, cfg);
 232         spin_unlock_irqrestore(&chip->reg_lock, flags);
 233         /* --- */
 234         spin_lock_irqsave(&chip->reg_lock, flags);
 235         snd_es1688_read(chip, 0xb1);
 236         snd_es1688_read(chip, 0xb2);
 237         spin_unlock_irqrestore(&chip->reg_lock, flags);
 238         if (enable) {
 239                 cfg = 0xf0;     /* enable only DMA counter interrupt */
 240                 irq_bits = irqs[chip->irq & 0x0f];
 241                 if (irq_bits < 0) {
 242                         snd_printk("[0x%lx] ESS: bad IRQ %d for ES1688 chip!!\n", chip->port, chip->irq);
 243 #if 0
 244                         irq_bits = 0;
 245                         cfg = 0x10;
 246 #endif
 247                         return -EINVAL;
 248                 }
 249                 spin_lock_irqsave(&chip->reg_lock, flags);
 250                 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
 251                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 252                 cfg = 0xf0;     /* extended mode DMA enable */
 253                 dma = chip->dma8;
 254                 if (dma > 3 || dma == 2) {
 255                         snd_printk("[0x%lx] ESS: bad DMA channel %d for ES1688 chip!!\n", chip->port, dma);
 256 #if 0
 257                         dma_bits = 0;
 258                         cfg = 0x00;     /* disable all DMA */
 259 #endif
 260                         return -EINVAL;
 261                 } else {
 262                         dma_bits = dma;
 263                         if (dma != 3)
 264                                 dma_bits++;
 265                 }
 266                 spin_lock_irqsave(&chip->reg_lock, flags);
 267                 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
 268                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 269         } else {
 270                 spin_lock_irqsave(&chip->reg_lock, flags);
 271                 snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 272                 snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 273                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 274         }
 275         spin_lock_irqsave(&chip->reg_lock, flags);
 276         snd_es1688_read(chip, 0xb1);
 277         snd_es1688_read(chip, 0xb2);
 278         snd_es1688_reset(chip);
 279         spin_unlock_irqrestore(&chip->reg_lock, flags);
 280         return 0;
 281 }
 282
 283 /*
 284
 285  */
 286
 287 static ratnum_t clocks[2] = {
 288         {
 289                 .num = 795444,
 290                 .den_min = 1,
 291                 .den_max = 128,
 292                 .den_step = 1,
 293         },
 294         {
 295                 .num = 397722,
 296                 .den_min = 1,
 297                 .den_max = 128,
 298                 .den_step = 1,
 299         }
 300 };
 301
 302 static snd_pcm_hw_constraint_ratnums_t hw_constraints_clocks  = {
 303         .nrats = 2,
 304         .rats = clocks,
 305 };
 306
 307 static void snd_es1688_set_rate(es1688_t *chip, snd_pcm_substream_t *substream)
 308 {
 309         snd_pcm_runtime_t *runtime = substream->runtime;
 310         unsigned int bits, divider;
 311
 312         if (runtime->rate_num == clocks[0].num)
 313                 bits = 256 - runtime->rate_den;
 314         else
 315                 bits = 128 - runtime->rate_den;
 316         /* set filter register */
 317         divider = 256 - 7160000*20/(8*82*runtime->rate);
 318         /* write result to hardware */
 319         snd_es1688_write(chip, 0xa1, bits);
 320         snd_es1688_write(chip, 0xa2, divider);
 321 }
 322
 323 static int snd_es1688_ioctl(snd_pcm_substream_t * substream,
 324                             unsigned int cmd, void *arg)
 325 {
 326         return snd_pcm_lib_ioctl(substream, cmd, arg);
 327 }
 328
 329 static int snd_es1688_trigger(es1688_t *chip, int cmd, unsigned char value)
 330 {
 331         int val;
 332
 333         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 334                 value = 0x00;
 335         } else if (cmd != SNDRV_PCM_TRIGGER_START) {
 336                 return -EINVAL;
 337         }
 338         spin_lock(&chip->reg_lock);
 339         chip->trigger_value = value;
 340         val = snd_es1688_read(chip, 0xb8);
 341         if ((val < 0) || (val & 0x0f) == value) {
 342                 spin_unlock(&chip->reg_lock);
 343                 return -EINVAL; /* something is wrong */
 344         }
 345 #if 0
 346         printk("trigger: val = 0x%x, value = 0x%x\n", val, value);
 347         printk("trigger: pointer = 0x%x\n", snd_dma_pointer(chip->dma8, chip->dma_size));
 348 #endif
 349         snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
 350         spin_unlock(&chip->reg_lock);
 351         return 0;
 352 }
 353
 354 static int snd_es1688_hw_params(snd_pcm_substream_t * substream,
 355                                 snd_pcm_hw_params_t * hw_params)
 356 {
 357         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 358 }
 359
 360 static int snd_es1688_hw_free(snd_pcm_substream_t * substream)
 361 {
 362         return snd_pcm_lib_free_pages(substream);
 363 }
 364
 365 static int snd_es1688_playback_prepare(snd_pcm_substream_t * substream)
 366 {
 367         unsigned long flags;
 368         es1688_t *chip = snd_pcm_substream_chip(substream);
 369         snd_pcm_runtime_t *runtime = substream->runtime;
 370         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 371         unsigned int count = snd_pcm_lib_period_bytes(substream);
 372
 373         chip->dma_size = size;
 374         spin_lock_irqsave(&chip->reg_lock, flags);
 375         snd_es1688_reset(chip);
 376         snd_es1688_set_rate(chip, substream);
 377         snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
 378         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 379         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 380         if (runtime->channels == 1) {
 381                 if (snd_pcm_format_width(runtime->format) == 8) {
 382                         /* 8. bit mono */
 383                         snd_es1688_write(chip, 0xb6, 0x80);
 384                         snd_es1688_write(chip, 0xb7, 0x51);
 385                         snd_es1688_write(chip, 0xb7, 0xd0);
 386                 } else {
 387                         /* 16. bit mono */
 388                         snd_es1688_write(chip, 0xb6, 0x00);
 389                         snd_es1688_write(chip, 0xb7, 0x71);
 390                         snd_es1688_write(chip, 0xb7, 0xf4);
 391                 }
 392         } else {
 393                 if (snd_pcm_format_width(runtime->format) == 8) {
 394                         /* 8. bit stereo */
 395                         snd_es1688_write(chip, 0xb6, 0x80);
 396                         snd_es1688_write(chip, 0xb7, 0x51);
 397                         snd_es1688_write(chip, 0xb7, 0x98);
 398                 } else {
 399                         /* 16. bit stereo */
 400                         snd_es1688_write(chip, 0xb6, 0x00);
 401                         snd_es1688_write(chip, 0xb7, 0x71);
 402                         snd_es1688_write(chip, 0xb7, 0xbc);
 403                 }
 404         }
 405         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 406         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 407         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
 408         spin_unlock_irqrestore(&chip->reg_lock, flags);
 409         /* --- */
 410         count = -count;
 411         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 412         spin_lock_irqsave(&chip->reg_lock, flags);
 413         snd_es1688_write(chip, 0xa4, (unsigned char) count);
 414         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 415         spin_unlock_irqrestore(&chip->reg_lock, flags);
 416         return 0;
 417 }
 418
 419 static int snd_es1688_playback_trigger(snd_pcm_substream_t * substream,
 420                                        int cmd)
 421 {
 422         es1688_t *chip = snd_pcm_substream_chip(substream);
 423         return snd_es1688_trigger(chip, cmd, 0x05);
 424 }
 425
 426 static int snd_es1688_capture_prepare(snd_pcm_substream_t * substream)
 427 {
 428         unsigned long flags;
 429         es1688_t *chip = snd_pcm_substream_chip(substream);
 430         snd_pcm_runtime_t *runtime = substream->runtime;
 431         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 432         unsigned int count = snd_pcm_lib_period_bytes(substream);
 433
 434         chip->dma_size = size;
 435         spin_lock_irqsave(&chip->reg_lock, flags);
 436         snd_es1688_reset(chip);
 437         snd_es1688_set_rate(chip, substream);
 438         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
 439         snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
 440         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 441         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 442         if (runtime->channels == 1) {
 443                 if (snd_pcm_format_width(runtime->format) == 8) {
 444                         /* 8. bit mono */
 445                         snd_es1688_write(chip, 0xb7, 0x51);
 446                         snd_es1688_write(chip, 0xb7, 0xd0);
 447                 } else {
 448                         /* 16. bit mono */
 449                         snd_es1688_write(chip, 0xb7, 0x71);
 450                         snd_es1688_write(chip, 0xb7, 0xf4);
 451                 }
 452         } else {
 453                 if (snd_pcm_format_width(runtime->format) == 8) {
 454                         /* 8. bit stereo */
 455                         snd_es1688_write(chip, 0xb7, 0x51);
 456                         snd_es1688_write(chip, 0xb7, 0x98);
 457                 } else {
 458                         /* 16. bit stereo */
 459                         snd_es1688_write(chip, 0xb7, 0x71);
 460                         snd_es1688_write(chip, 0xb7, 0xbc);
 461                 }
 462         }
 463         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 464         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 465         spin_unlock_irqrestore(&chip->reg_lock, flags);
 466         /* --- */
 467         count = -count;
 468         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 469         spin_lock_irqsave(&chip->reg_lock, flags);
 470         snd_es1688_write(chip, 0xa4, (unsigned char) count);
 471         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 472         spin_unlock_irqrestore(&chip->reg_lock, flags);
 473         return 0;
 474 }
 475
 476 static int snd_es1688_capture_trigger(snd_pcm_substream_t * substream,
 477                                       int cmd)
 478 {
 479         es1688_t *chip = snd_pcm_substream_chip(substream);
 480         return snd_es1688_trigger(chip, cmd, 0x0f);
 481 }
 482
 483 irqreturn_t snd_es1688_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 484 {
 485         es1688_t *chip = snd_magic_cast(es1688_t, dev_id, return IRQ_NONE);
 486
 487         if (chip->trigger_value == 0x05)        /* ok.. playback is active */
 488                 snd_pcm_period_elapsed(chip->playback_substream);
 489         if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
 490                 snd_pcm_period_elapsed(chip->capture_substream);
 491
 492         inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
 493         return IRQ_HANDLED;
 494 }
 495
 496 static snd_pcm_uframes_t snd_es1688_playback_pointer(snd_pcm_substream_t * substream)
 497 {
 498         es1688_t *chip = snd_pcm_substream_chip(substream);
 499         size_t ptr;
 500
 501         if (chip->trigger_value != 0x05)
 502                 return 0;
 503         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 504         return bytes_to_frames(substream->runtime, ptr);
 505 }
 506
 507 static snd_pcm_uframes_t snd_es1688_capture_pointer(snd_pcm_substream_t * substream)
 508 {
 509         es1688_t *chip = snd_pcm_substream_chip(substream);
 510         size_t ptr;
 511
 512         if (chip->trigger_value != 0x0f)
 513                 return 0;
 514         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 515         return bytes_to_frames(substream->runtime, ptr);
 516 }
 517
 518 /*
 519
 520  */
 521
 522 static snd_pcm_hardware_t snd_es1688_playback =
 523 {
 524         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 525                                  SNDRV_PCM_INFO_MMAP_VALID),
 526         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 527         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 528         .rate_min =             4000,
 529         .rate_max =             48000,
 530         .channels_min =         1,
 531         .channels_max =         2,
 532         .buffer_bytes_max =     65536,
 533         .period_bytes_min =     64,
 534         .period_bytes_max =     65536,
 535         .periods_min =          1,
 536         .periods_max =          1024,
 537         .fifo_size =            0,
 538 };
 539
 540 static snd_pcm_hardware_t snd_es1688_capture =
 541 {
 542         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 543                                  SNDRV_PCM_INFO_MMAP_VALID),
 544         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 545         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 546         .rate_min =             4000,
 547         .rate_max =             48000,
 548         .channels_min =         1,
 549         .channels_max =         2,
 550         .buffer_bytes_max =     65536,
 551         .period_bytes_min =     64,
 552         .period_bytes_max =     65536,
 553         .periods_min =          1,
 554         .periods_max =          1024,
 555         .fifo_size =            0,
 556 };
 557
 558 /*
 559
 560  */
 561
 562 static int snd_es1688_playback_open(snd_pcm_substream_t * substream)
 563 {
 564         es1688_t *chip = snd_pcm_substream_chip(substream);
 565         snd_pcm_runtime_t *runtime = substream->runtime;
 566
 567         if (chip->capture_substream != NULL)
 568                 return -EAGAIN;
 569         chip->playback_substream = substream;
 570         runtime->hw = snd_es1688_playback;
 571         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 572                                       &hw_constraints_clocks);
 573         return 0;
 574 }
 575
 576 static int snd_es1688_capture_open(snd_pcm_substream_t * substream)
 577 {
 578         es1688_t *chip = snd_pcm_substream_chip(substream);
 579         snd_pcm_runtime_t *runtime = substream->runtime;
 580
 581         if (chip->playback_substream != NULL)
 582                 return -EAGAIN;
 583         chip->capture_substream = substream;
 584         runtime->hw = snd_es1688_capture;
 585         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 586                                       &hw_constraints_clocks);
 587         return 0;
 588 }
 589
 590 static int snd_es1688_playback_close(snd_pcm_substream_t * substream)
 591 {
 592         es1688_t *chip = snd_pcm_substream_chip(substream);
 593
 594         chip->playback_substream = NULL;
 595         return 0;
 596 }
 597
 598 static int snd_es1688_capture_close(snd_pcm_substream_t * substream)
 599 {
 600         es1688_t *chip = snd_pcm_substream_chip(substream);
 601
 602         chip->capture_substream = NULL;
 603         return 0;
 604 }
 605
 606 static int snd_es1688_free(es1688_t *chip)
 607 {
 608         if (chip->res_port) {
 609                 snd_es1688_init(chip, 0);
 610                 release_resource(chip->res_port);
 611                 kfree_nocheck(chip->res_port);
 612         }
 613         if (chip->irq >= 0)
 614                 free_irq(chip->irq, (void *) chip);
 615         if (chip->dma8 >= 0) {
 616                 disable_dma(chip->dma8);
 617                 free_dma(chip->dma8);
 618         }
 619         snd_magic_kfree(chip);
 620         return 0;
 621 }
 622
 623 static int snd_es1688_dev_free(snd_device_t *device)
 624 {
 625         es1688_t *chip = snd_magic_cast(es1688_t, device->device_data, return -ENXIO);
 626         return snd_es1688_free(chip);
 627 }
 628
 629 static const char *snd_es1688_chip_id(es1688_t *chip)
 630 {
 631         static char tmp[16];
 632         sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
 633         return tmp;
 634 }
 635
 636 int snd_es1688_create(snd_card_t * card,
 637                       unsigned long port,
 638                       unsigned long mpu_port,
 639                       int irq,
 640                       int mpu_irq,
 641                       int dma8,
 642                       unsigned short hardware,
 643                       es1688_t **rchip)
 644 {
 645         static snd_device_ops_t ops = {
 646                 .dev_free =     snd_es1688_dev_free,
 647         };
 648
 649         es1688_t *chip;
 650         int err;
 651
 652         *rchip = NULL;
 653         chip = snd_magic_kcalloc(es1688_t, 0, GFP_KERNEL);
 654         if (chip == NULL)
 655                 return -ENOMEM;
 656         chip->irq = -1;
 657         chip->dma8 = -1;
 658
 659         if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) {
 660                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
 661                 snd_es1688_free(chip);
 662                 return -EBUSY;
 663         }
 664         if (request_irq(irq, snd_es1688_interrupt, SA_INTERRUPT, "ES1688", (void *) chip)) {
 665                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
 666                 snd_es1688_free(chip);
 667                 return -EBUSY;
 668         }
 669         chip->irq = irq;
 670         if (request_dma(dma8, "ES1688")) {
 671                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
 672                 snd_es1688_free(chip);
 673                 return -EBUSY;
 674         }
 675         chip->dma8 = dma8;
 676
 677         spin_lock_init(&chip->reg_lock);
 678         spin_lock_init(&chip->mixer_lock);
 679         chip->card = card;
 680         chip->port = port;
 681         mpu_port &= ~0x000f;
 682         if (mpu_port < 0x300 || mpu_port > 0x330)
 683                 mpu_port = 0;
 684         chip->mpu_port = mpu_port;
 685         chip->mpu_irq = mpu_irq;
 686         chip->hardware = hardware;
 687
 688         if ((err = snd_es1688_probe(chip)) < 0) {
 689                 snd_es1688_free(chip);
 690                 return err;
 691         }
 692         if ((err = snd_es1688_init(chip, 1)) < 0) {
 693                 snd_es1688_free(chip);
 694                 return err;
 695         }
 696
 697         /* Register device */
 698         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 699                 snd_es1688_free(chip);
 700                 return err;
 701         }
 702
 703         *rchip = chip;
 704         return 0;
 705 }
 706
 707 static snd_pcm_ops_t snd_es1688_playback_ops = {
 708         .open =                 snd_es1688_playback_open,
 709         .close =                snd_es1688_playback_close,
 710         .ioctl =                snd_es1688_ioctl,
 711         .hw_params =            snd_es1688_hw_params,
 712         .hw_free =              snd_es1688_hw_free,
 713         .prepare =              snd_es1688_playback_prepare,
 714         .trigger =              snd_es1688_playback_trigger,
 715         .pointer =              snd_es1688_playback_pointer,
 716 };
 717
 718 static snd_pcm_ops_t snd_es1688_capture_ops = {
 719         .open =                 snd_es1688_capture_open,
 720         .close =                snd_es1688_capture_close,
 721         .ioctl =                snd_es1688_ioctl,
 722         .hw_params =            snd_es1688_hw_params,
 723         .hw_free =              snd_es1688_hw_free,
 724         .prepare =              snd_es1688_capture_prepare,
 725         .trigger =              snd_es1688_capture_trigger,
 726         .pointer =              snd_es1688_capture_pointer,
 727 };
 728
 729 static void snd_es1688_pcm_free(snd_pcm_t *pcm)
 730 {
 731         es1688_t *chip = snd_magic_cast(es1688_t, pcm->private_data, return);
 732         chip->pcm = NULL;
 733         snd_pcm_lib_preallocate_free_for_all(pcm);
 734 }
 735
 736 int snd_es1688_pcm(es1688_t * chip, int device, snd_pcm_t ** rpcm)
 737 {
 738         snd_pcm_t *pcm;
 739         int err;
 740
 741         if ((err = snd_pcm_new(chip->card, "ESx688", device, 1, 1, &pcm)) < 0)
 742                 return err;
 743
 744         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
 745         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
 746
 747         pcm->private_data = chip;
 748         pcm->private_free = snd_es1688_pcm_free;
 749         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
 750         sprintf(pcm->name, snd_es1688_chip_id(chip));
 751         chip->pcm = pcm;
 752
 753         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 754                                               snd_dma_isa_data(),
 755                                               64*1024, 64*1024);
 756
 757         if (rpcm)
 758                 *rpcm = pcm;
 759         return 0;
 760 }
 761
 762 /*
 763  *  MIXER part
 764  */
 765
 766 static int snd_es1688_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 767 {
 768         static char *texts[9] = {
 769                 "Mic", "Mic Master", "CD", "AOUT",
 770                 "Mic1", "Mix", "Line", "Master"
 771         };
 772
 773         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 774         uinfo->count = 1;
 775         uinfo->value.enumerated.items = 8;
 776         if (uinfo->value.enumerated.item > 7)
 777                 uinfo->value.enumerated.item = 7;
 778         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 779         return 0;
 780 }
 781
 782 static int snd_es1688_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 783 {
 784         es1688_t *chip = snd_kcontrol_chip(kcontrol);
 785         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
 786         return 0;
 787 }
 788
 789 static int snd_es1688_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 790 {
 791         es1688_t *chip = snd_kcontrol_chip(kcontrol);
 792         unsigned long flags;
 793         unsigned char oval, nval;
 794         int change;
 795
 796         if (ucontrol->value.enumerated.item[0] > 8)
 797                 return -EINVAL;
 798         spin_lock_irqsave(&chip->reg_lock, flags);
 799         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
 800         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
 801         change = nval != oval;
 802         if (change)
 803                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
 804         spin_unlock_irqrestore(&chip->reg_lock, flags);
 805         return change;
 806 }
 807
 808 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
 809 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 810   .info = snd_es1688_info_single, \
 811   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
 812   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 813
 814 static int snd_es1688_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 815 {
 816         int mask = (kcontrol->private_value >> 16) & 0xff;
 817
 818         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 819         uinfo->count = 1;
 820         uinfo->value.integer.min = 0;
 821         uinfo->value.integer.max = mask;
 822         return 0;
 823 }
 824
 825 static int snd_es1688_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 826 {
 827         es1688_t *chip = snd_kcontrol_chip(kcontrol);
 828         unsigned long flags;
 829         int reg = kcontrol->private_value & 0xff;
 830         int shift = (kcontrol->private_value >> 8) & 0xff;
 831         int mask = (kcontrol->private_value >> 16) & 0xff;
 832         int invert = (kcontrol->private_value >> 24) & 0xff;
 833
 834         spin_lock_irqsave(&chip->reg_lock, flags);
 835         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
 836         spin_unlock_irqrestore(&chip->reg_lock, flags);
 837         if (invert)
 838                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 839         return 0;
 840 }
 841
 842 static int snd_es1688_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 843 {
 844         es1688_t *chip = snd_kcontrol_chip(kcontrol);
 845         unsigned long flags;
 846         int reg = kcontrol->private_value & 0xff;
 847         int shift = (kcontrol->private_value >> 8) & 0xff;
 848         int mask = (kcontrol->private_value >> 16) & 0xff;
 849         int invert = (kcontrol->private_value >> 24) & 0xff;
 850         int change;
 851         unsigned char oval, nval;
 852
 853         nval = (ucontrol->value.integer.value[0] & mask);
 854         if (invert)
 855                 nval = mask - nval;
 856         nval <<= shift;
 857         spin_lock_irqsave(&chip->reg_lock, flags);
 858         oval = snd_es1688_mixer_read(chip, reg);
 859         nval = (oval & ~(mask << shift)) | nval;
 860         change = nval != oval;
 861         if (change)
 862                 snd_es1688_mixer_write(chip, reg, nval);
 863         spin_unlock_irqrestore(&chip->reg_lock, flags);
 864         return change;
 865 }
 866
 867 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 868 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 869   .info = snd_es1688_info_double, \
 870   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
 871   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
 872
 873 static int snd_es1688_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 874 {
 875         int mask = (kcontrol->private_value >> 24) & 0xff;
 876
 877         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 878         uinfo->count = 2;
 879         uinfo->value.integer.min = 0;
 880         uinfo->value.integer.max = mask;
 881         return 0;
 882 }
 883
 884 static int snd_es1688_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 885 {
 886         es1688_t *chip = snd_kcontrol_chip(kcontrol);
 887         unsigned long flags;
 888         int left_reg = kcontrol->private_value & 0xff;
 889         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 890         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 891         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 892         int mask = (kcontrol->private_value >> 24) & 0xff;
 893         int invert = (kcontrol->private_value >> 22) & 1;
 894         unsigned char left, right;
 895
 896         spin_lock_irqsave(&chip->reg_lock, flags);
 897         if (left_reg < 0xa0)
 898                 left = snd_es1688_mixer_read(chip, left_reg);
 899         else
 900                 left = snd_es1688_read(chip, left_reg);
 901         if (left_reg != right_reg) {
 902                 if (right_reg < 0xa0)
 903                         right = snd_es1688_mixer_read(chip, right_reg);
 904                 else
 905                         right = snd_es1688_read(chip, right_reg);
 906         } else
 907                 right = left;
 908         spin_unlock_irqrestore(&chip->reg_lock, flags);
 909         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
 910         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
 911         if (invert) {
 912                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 913                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 914         }
 915         return 0;
 916 }
 917
 918 static int snd_es1688_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 919 {
 920         es1688_t *chip = snd_kcontrol_chip(kcontrol);
 921         unsigned long flags;
 922         int left_reg = kcontrol->private_value & 0xff;
 923         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 924         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 925         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 926         int mask = (kcontrol->private_value >> 24) & 0xff;
 927         int invert = (kcontrol->private_value >> 22) & 1;
 928         int change;
 929         unsigned char val1, val2, oval1, oval2;
 930
 931         val1 = ucontrol->value.integer.value[0] & mask;
 932         val2 = ucontrol->value.integer.value[1] & mask;
 933         if (invert) {
 934                 val1 = mask - val1;
 935                 val2 = mask - val2;
 936         }
 937         val1 <<= shift_left;
 938         val2 <<= shift_right;
 939         spin_lock_irqsave(&chip->reg_lock, flags);
 940         if (left_reg != right_reg) {
 941                 if (left_reg < 0xa0)
 942                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 943                 else
 944                         oval1 = snd_es1688_read(chip, left_reg);
 945                 if (right_reg < 0xa0)
 946                         oval2 = snd_es1688_mixer_read(chip, right_reg);
 947                 else
 948                         oval2 = snd_es1688_read(chip, right_reg);
 949                 val1 = (oval1 & ~(mask << shift_left)) | val1;
 950                 val2 = (oval2 & ~(mask << shift_right)) | val2;
 951                 change = val1 != oval1 || val2 != oval2;
 952                 if (change) {
 953                         if (left_reg < 0xa0)
 954                                 snd_es1688_mixer_write(chip, left_reg, val1);
 955                         else
 956                                 snd_es1688_write(chip, left_reg, val1);
 957                         if (right_reg < 0xa0)
 958                                 snd_es1688_mixer_write(chip, right_reg, val1);
 959                         else
 960                                 snd_es1688_write(chip, right_reg, val1);
 961                 }
 962         } else {
 963                 if (left_reg < 0xa0)
 964                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 965                 else
 966                         oval1 = snd_es1688_read(chip, left_reg);
 967                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 968                 change = val1 != oval1;
 969                 if (change) {
 970                         if (left_reg < 0xa0)
 971                                 snd_es1688_mixer_write(chip, left_reg, val1);
 972                         else
 973                                 snd_es1688_write(chip, left_reg, val1);
 974                 }
 975
 976         }
 977         spin_unlock_irqrestore(&chip->reg_lock, flags);
 978         return change;
 979 }
 980
 981 #define ES1688_CONTROLS (sizeof(snd_es1688_controls)/sizeof(snd_kcontrol_new_t))
 982
 983 static snd_kcontrol_new_t snd_es1688_controls[] = {
 984 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
 985 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
 986 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
 987 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
 988 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
 989 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
 990 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
 991 ES1688_SINGLE("PC Speaker Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
 992 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
 993 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
 994 {
 995         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 996         .name = "Capture Source",
 997         .info = snd_es1688_info_mux,
 998         .get = snd_es1688_get_mux,
 999         .put = snd_es1688_put_mux,
1000 },
1001 };
1002
1003 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
1004
1005 static unsigned char snd_es1688_init_table[][2] = {
1006         { ES1688_MASTER_DEV, 0 },
1007         { ES1688_PCM_DEV, 0 },
1008         { ES1688_LINE_DEV, 0 },
1009         { ES1688_CD_DEV, 0 },
1010         { ES1688_FM_DEV, 0 },
1011         { ES1688_MIC_DEV, 0 },
1012         { ES1688_AUX_DEV, 0 },
1013         { ES1688_SPEAKER_DEV, 0 },
1014         { ES1688_RECLEV_DEV, 0 },
1015         { ES1688_REC_DEV, 0x17 }
1016 };
1017
1018 int snd_es1688_mixer(es1688_t *chip)
1019 {
1020         snd_card_t *card;
1021         unsigned int idx;
1022         int err;
1023         unsigned char reg, val;
1024
1025         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
1026
1027         card = chip->card;
1028
1029         strcpy(card->mixername, snd_es1688_chip_id(chip));
1030
1031         for (idx = 0; idx < ES1688_CONTROLS; idx++) {
1032                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1033                         return err;
1034         }
1035         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1036                 reg = snd_es1688_init_table[idx][0];
1037                 val = snd_es1688_init_table[idx][1];
1038                 if (reg < 0xa0)
1039                         snd_es1688_mixer_write(chip, reg, val);
1040                 else
1041                         snd_es1688_write(chip, reg, val);
1042         }
1043         return 0;
1044 }
1045
1046 EXPORT_SYMBOL(snd_es1688_mixer_write);
1047 EXPORT_SYMBOL(snd_es1688_mixer_read);
1048 EXPORT_SYMBOL(snd_es1688_interrupt);
1049 EXPORT_SYMBOL(snd_es1688_create);
1050 EXPORT_SYMBOL(snd_es1688_pcm);
1051 EXPORT_SYMBOL(snd_es1688_mixer);
1052
1053 /*
1054  *  INIT part
1055  */
1056
1057 static int __init alsa_es1688_init(void)
1058 {
1059         return 0;
1060 }
1061
1062 static void __exit alsa_es1688_exit(void)
1063 {
1064 }
1065
1066 module_init(alsa_es1688_init)
1067 module_exit(alsa_es1688_exit)