sound/isa/es1688/es1688_lib.c

   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 <linux/module.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@perex.cz>");
  36 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
  37 MODULE_LICENSE("GPL");
  38
  39 static int snd_es1688_dsp_command(struct snd_es1688 *chip, unsigned char val)
  40 {
  41         int i;
  42
  43         for (i = 10000; i; i--)
  44                 if ((inb(ES1688P(chip, STATUS)) & 0x80) == 0) {
  45                         outb(val, ES1688P(chip, COMMAND));
  46                         return 1;
  47                 }
  48 #ifdef CONFIG_SND_DEBUG
  49         printk(KERN_DEBUG "snd_es1688_dsp_command: timeout (0x%x)\n", val);
  50 #endif
  51         return 0;
  52 }
  53
  54 static int snd_es1688_dsp_get_byte(struct snd_es1688 *chip)
  55 {
  56         int i;
  57
  58         for (i = 1000; i; i--)
  59                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80)
  60                         return inb(ES1688P(chip, READ));
  61         snd_printd("es1688 get byte failed: 0x%lx = 0x%x!!!\n", ES1688P(chip, DATA_AVAIL), inb(ES1688P(chip, DATA_AVAIL)));
  62         return -ENODEV;
  63 }
  64
  65 static int snd_es1688_write(struct snd_es1688 *chip,
  66                             unsigned char reg, unsigned char data)
  67 {
  68         if (!snd_es1688_dsp_command(chip, reg))
  69                 return 0;
  70         return snd_es1688_dsp_command(chip, data);
  71 }
  72
  73 static int snd_es1688_read(struct snd_es1688 *chip, unsigned char reg)
  74 {
  75         /* Read a byte from an extended mode register of ES1688 */
  76         if (!snd_es1688_dsp_command(chip, 0xc0))
  77                 return -1;
  78         if (!snd_es1688_dsp_command(chip, reg))
  79                 return -1;
  80         return snd_es1688_dsp_get_byte(chip);
  81 }
  82
  83 void snd_es1688_mixer_write(struct snd_es1688 *chip,
  84                             unsigned char reg, unsigned char data)
  85 {
  86         outb(reg, ES1688P(chip, MIXER_ADDR));
  87         udelay(10);
  88         outb(data, ES1688P(chip, MIXER_DATA));
  89         udelay(10);
  90 }
  91
  92 static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned char reg)
  93 {
  94         unsigned char result;
  95
  96         outb(reg, ES1688P(chip, MIXER_ADDR));
  97         udelay(10);
  98         result = inb(ES1688P(chip, MIXER_DATA));
  99         udelay(10);
 100         return result;
 101 }
 102
 103 int snd_es1688_reset(struct snd_es1688 *chip)
 104 {
 105         int i;
 106
 107         outb(3, ES1688P(chip, RESET));          /* valid only for ESS chips, SB -> 1 */
 108         udelay(10);
 109         outb(0, ES1688P(chip, RESET));
 110         udelay(30);
 111         for (i = 0; i < 1000 && !(inb(ES1688P(chip, DATA_AVAIL)) & 0x80); i++);
 112         if (inb(ES1688P(chip, READ)) != 0xaa) {
 113                 snd_printd("ess_reset at 0x%lx: failed!!!\n", chip->port);
 114                 return -ENODEV;
 115         }
 116         snd_es1688_dsp_command(chip, 0xc6);     /* enable extended mode */
 117         return 0;
 118 }
 119 EXPORT_SYMBOL(snd_es1688_reset);
 120
 121 static int snd_es1688_probe(struct snd_es1688 *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(KERN_ERR "[0x%lx] ESS: AudioDrive ES488 detected, "
 173                            "but driver is in another place\n", chip->port);
 174                 return -ENODEV;
 175         case 0x6880:
 176                 hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
 177                 break;
 178         default:
 179                 snd_printk(KERN_ERR "[0x%lx] ESS: unknown AudioDrive chip "
 180                            "with version 0x%x (Jazz16 soundcard?)\n",
 181                            chip->port, chip->version);
 182                 return -ENODEV;
 183         }
 184
 185         spin_lock_irqsave(&chip->reg_lock, flags);
 186         snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 187         snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 188         spin_unlock_irqrestore(&chip->reg_lock, flags);
 189
 190         /* enable joystick, but disable OPL3 */
 191         spin_lock_irqsave(&chip->mixer_lock, flags);
 192         snd_es1688_mixer_write(chip, 0x40, 0x01);
 193         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 194
 195         return 0;
 196 }
 197
 198 static int snd_es1688_init(struct snd_es1688 * chip, int enable)
 199 {
 200         static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
 201         unsigned long flags;
 202         int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
 203
 204         /* ok.. setup MPU-401 port and joystick and OPL3 */
 205         cfg = 0x01;             /* enable joystick, but disable OPL3 */
 206         if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
 207                 tmp = (chip->mpu_port & 0x0f0) >> 4;
 208                 if (tmp <= 3) {
 209                         switch (chip->mpu_irq) {
 210                         case 9:
 211                                 tmp1 = 4;
 212                                 break;
 213                         case 5:
 214                                 tmp1 = 5;
 215                                 break;
 216                         case 7:
 217                                 tmp1 = 6;
 218                                 break;
 219                         case 10:
 220                                 tmp1 = 7;
 221                                 break;
 222                         default:
 223                                 tmp1 = 0;
 224                         }
 225                         if (tmp1) {
 226                                 cfg |= (tmp << 3) | (tmp1 << 5);
 227                         }
 228                 }
 229         }
 230 #if 0
 231         snd_printk(KERN_DEBUG "mpu cfg = 0x%x\n", cfg);
 232 #endif
 233         spin_lock_irqsave(&chip->reg_lock, flags);
 234         snd_es1688_mixer_write(chip, 0x40, cfg);
 235         spin_unlock_irqrestore(&chip->reg_lock, flags);
 236         /* --- */
 237         spin_lock_irqsave(&chip->reg_lock, flags);
 238         snd_es1688_read(chip, 0xb1);
 239         snd_es1688_read(chip, 0xb2);
 240         spin_unlock_irqrestore(&chip->reg_lock, flags);
 241         if (enable) {
 242                 cfg = 0xf0;     /* enable only DMA counter interrupt */
 243                 irq_bits = irqs[chip->irq & 0x0f];
 244                 if (irq_bits < 0) {
 245                         snd_printk(KERN_ERR "[0x%lx] ESS: bad IRQ %d "
 246                                    "for ES1688 chip!!\n",
 247                                    chip->port, chip->irq);
 248 #if 0
 249                         irq_bits = 0;
 250                         cfg = 0x10;
 251 #endif
 252                         return -EINVAL;
 253                 }
 254                 spin_lock_irqsave(&chip->reg_lock, flags);
 255                 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
 256                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 257                 cfg = 0xf0;     /* extended mode DMA enable */
 258                 dma = chip->dma8;
 259                 if (dma > 3 || dma == 2) {
 260                         snd_printk(KERN_ERR "[0x%lx] ESS: bad DMA channel %d "
 261                                    "for ES1688 chip!!\n", chip->port, dma);
 262 #if 0
 263                         dma_bits = 0;
 264                         cfg = 0x00;     /* disable all DMA */
 265 #endif
 266                         return -EINVAL;
 267                 } else {
 268                         dma_bits = dma;
 269                         if (dma != 3)
 270                                 dma_bits++;
 271                 }
 272                 spin_lock_irqsave(&chip->reg_lock, flags);
 273                 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
 274                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 275         } else {
 276                 spin_lock_irqsave(&chip->reg_lock, flags);
 277                 snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 278                 snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 279                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 280         }
 281         spin_lock_irqsave(&chip->reg_lock, flags);
 282         snd_es1688_read(chip, 0xb1);
 283         snd_es1688_read(chip, 0xb2);
 284         snd_es1688_reset(chip);
 285         spin_unlock_irqrestore(&chip->reg_lock, flags);
 286         return 0;
 287 }
 288
 289 /*
 290
 291  */
 292
 293 static struct snd_ratnum clocks[2] = {
 294         {
 295                 .num = 795444,
 296                 .den_min = 1,
 297                 .den_max = 128,
 298                 .den_step = 1,
 299         },
 300         {
 301                 .num = 397722,
 302                 .den_min = 1,
 303                 .den_max = 128,
 304                 .den_step = 1,
 305         }
 306 };
 307
 308 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
 309         .nrats = 2,
 310         .rats = clocks,
 311 };
 312
 313 static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
 314 {
 315         struct snd_pcm_runtime *runtime = substream->runtime;
 316         unsigned int bits, divider;
 317
 318         if (runtime->rate_num == clocks[0].num)
 319                 bits = 256 - runtime->rate_den;
 320         else
 321                 bits = 128 - runtime->rate_den;
 322         /* set filter register */
 323         divider = 256 - 7160000*20/(8*82*runtime->rate);
 324         /* write result to hardware */
 325         snd_es1688_write(chip, 0xa1, bits);
 326         snd_es1688_write(chip, 0xa2, divider);
 327 }
 328
 329 static int snd_es1688_ioctl(struct snd_pcm_substream *substream,
 330                             unsigned int cmd, void *arg)
 331 {
 332         return snd_pcm_lib_ioctl(substream, cmd, arg);
 333 }
 334
 335 static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
 336 {
 337         int val;
 338
 339         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 340                 value = 0x00;
 341         } else if (cmd != SNDRV_PCM_TRIGGER_START) {
 342                 return -EINVAL;
 343         }
 344         spin_lock(&chip->reg_lock);
 345         chip->trigger_value = value;
 346         val = snd_es1688_read(chip, 0xb8);
 347         if ((val < 0) || (val & 0x0f) == value) {
 348                 spin_unlock(&chip->reg_lock);
 349                 return -EINVAL; /* something is wrong */
 350         }
 351 #if 0
 352         printk(KERN_DEBUG "trigger: val = 0x%x, value = 0x%x\n", val, value);
 353         printk(KERN_DEBUG "trigger: pointer = 0x%x\n",
 354                snd_dma_pointer(chip->dma8, chip->dma_size));
 355 #endif
 356         snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
 357         spin_unlock(&chip->reg_lock);
 358         return 0;
 359 }
 360
 361 static int snd_es1688_hw_params(struct snd_pcm_substream *substream,
 362                                 struct snd_pcm_hw_params *hw_params)
 363 {
 364         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 365 }
 366
 367 static int snd_es1688_hw_free(struct snd_pcm_substream *substream)
 368 {
 369         return snd_pcm_lib_free_pages(substream);
 370 }
 371
 372 static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
 373 {
 374         unsigned long flags;
 375         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 376         struct snd_pcm_runtime *runtime = substream->runtime;
 377         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 378         unsigned int count = snd_pcm_lib_period_bytes(substream);
 379
 380         chip->dma_size = size;
 381         spin_lock_irqsave(&chip->reg_lock, flags);
 382         snd_es1688_reset(chip);
 383         snd_es1688_set_rate(chip, substream);
 384         snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
 385         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 386         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 387         if (runtime->channels == 1) {
 388                 if (snd_pcm_format_width(runtime->format) == 8) {
 389                         /* 8. bit mono */
 390                         snd_es1688_write(chip, 0xb6, 0x80);
 391                         snd_es1688_write(chip, 0xb7, 0x51);
 392                         snd_es1688_write(chip, 0xb7, 0xd0);
 393                 } else {
 394                         /* 16. bit mono */
 395                         snd_es1688_write(chip, 0xb6, 0x00);
 396                         snd_es1688_write(chip, 0xb7, 0x71);
 397                         snd_es1688_write(chip, 0xb7, 0xf4);
 398                 }
 399         } else {
 400                 if (snd_pcm_format_width(runtime->format) == 8) {
 401                         /* 8. bit stereo */
 402                         snd_es1688_write(chip, 0xb6, 0x80);
 403                         snd_es1688_write(chip, 0xb7, 0x51);
 404                         snd_es1688_write(chip, 0xb7, 0x98);
 405                 } else {
 406                         /* 16. bit stereo */
 407                         snd_es1688_write(chip, 0xb6, 0x00);
 408                         snd_es1688_write(chip, 0xb7, 0x71);
 409                         snd_es1688_write(chip, 0xb7, 0xbc);
 410                 }
 411         }
 412         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 413         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 414         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
 415         spin_unlock_irqrestore(&chip->reg_lock, flags);
 416         /* --- */
 417         count = -count;
 418         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 419         spin_lock_irqsave(&chip->reg_lock, flags);
 420         snd_es1688_write(chip, 0xa4, (unsigned char) count);
 421         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 422         spin_unlock_irqrestore(&chip->reg_lock, flags);
 423         return 0;
 424 }
 425
 426 static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
 427                                        int cmd)
 428 {
 429         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 430         return snd_es1688_trigger(chip, cmd, 0x05);
 431 }
 432
 433 static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
 434 {
 435         unsigned long flags;
 436         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 437         struct snd_pcm_runtime *runtime = substream->runtime;
 438         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 439         unsigned int count = snd_pcm_lib_period_bytes(substream);
 440
 441         chip->dma_size = size;
 442         spin_lock_irqsave(&chip->reg_lock, flags);
 443         snd_es1688_reset(chip);
 444         snd_es1688_set_rate(chip, substream);
 445         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
 446         snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
 447         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 448         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 449         if (runtime->channels == 1) {
 450                 if (snd_pcm_format_width(runtime->format) == 8) {
 451                         /* 8. bit mono */
 452                         snd_es1688_write(chip, 0xb7, 0x51);
 453                         snd_es1688_write(chip, 0xb7, 0xd0);
 454                 } else {
 455                         /* 16. bit mono */
 456                         snd_es1688_write(chip, 0xb7, 0x71);
 457                         snd_es1688_write(chip, 0xb7, 0xf4);
 458                 }
 459         } else {
 460                 if (snd_pcm_format_width(runtime->format) == 8) {
 461                         /* 8. bit stereo */
 462                         snd_es1688_write(chip, 0xb7, 0x51);
 463                         snd_es1688_write(chip, 0xb7, 0x98);
 464                 } else {
 465                         /* 16. bit stereo */
 466                         snd_es1688_write(chip, 0xb7, 0x71);
 467                         snd_es1688_write(chip, 0xb7, 0xbc);
 468                 }
 469         }
 470         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 471         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 472         spin_unlock_irqrestore(&chip->reg_lock, flags);
 473         /* --- */
 474         count = -count;
 475         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 476         spin_lock_irqsave(&chip->reg_lock, flags);
 477         snd_es1688_write(chip, 0xa4, (unsigned char) count);
 478         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 479         spin_unlock_irqrestore(&chip->reg_lock, flags);
 480         return 0;
 481 }
 482
 483 static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
 484                                       int cmd)
 485 {
 486         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 487         return snd_es1688_trigger(chip, cmd, 0x0f);
 488 }
 489
 490 static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id)
 491 {
 492         struct snd_es1688 *chip = dev_id;
 493
 494         if (chip->trigger_value == 0x05)        /* ok.. playback is active */
 495                 snd_pcm_period_elapsed(chip->playback_substream);
 496         if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
 497                 snd_pcm_period_elapsed(chip->capture_substream);
 498
 499         inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
 500         return IRQ_HANDLED;
 501 }
 502
 503 static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
 504 {
 505         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 506         size_t ptr;
 507
 508         if (chip->trigger_value != 0x05)
 509                 return 0;
 510         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 511         return bytes_to_frames(substream->runtime, ptr);
 512 }
 513
 514 static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
 515 {
 516         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 517         size_t ptr;
 518
 519         if (chip->trigger_value != 0x0f)
 520                 return 0;
 521         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 522         return bytes_to_frames(substream->runtime, ptr);
 523 }
 524
 525 /*
 526
 527  */
 528
 529 static struct snd_pcm_hardware snd_es1688_playback =
 530 {
 531         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 532                                  SNDRV_PCM_INFO_MMAP_VALID),
 533         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 534         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 535         .rate_min =             4000,
 536         .rate_max =             48000,
 537         .channels_min =         1,
 538         .channels_max =         2,
 539         .buffer_bytes_max =     65536,
 540         .period_bytes_min =     64,
 541         .period_bytes_max =     65536,
 542         .periods_min =          1,
 543         .periods_max =          1024,
 544         .fifo_size =            0,
 545 };
 546
 547 static struct snd_pcm_hardware snd_es1688_capture =
 548 {
 549         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 550                                  SNDRV_PCM_INFO_MMAP_VALID),
 551         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 552         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 553         .rate_min =             4000,
 554         .rate_max =             48000,
 555         .channels_min =         1,
 556         .channels_max =         2,
 557         .buffer_bytes_max =     65536,
 558         .period_bytes_min =     64,
 559         .period_bytes_max =     65536,
 560         .periods_min =          1,
 561         .periods_max =          1024,
 562         .fifo_size =            0,
 563 };
 564
 565 /*
 566
 567  */
 568
 569 static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
 570 {
 571         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 572         struct snd_pcm_runtime *runtime = substream->runtime;
 573
 574         if (chip->capture_substream != NULL)
 575                 return -EAGAIN;
 576         chip->playback_substream = substream;
 577         runtime->hw = snd_es1688_playback;
 578         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 579                                       &hw_constraints_clocks);
 580         return 0;
 581 }
 582
 583 static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
 584 {
 585         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 586         struct snd_pcm_runtime *runtime = substream->runtime;
 587
 588         if (chip->playback_substream != NULL)
 589                 return -EAGAIN;
 590         chip->capture_substream = substream;
 591         runtime->hw = snd_es1688_capture;
 592         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 593                                       &hw_constraints_clocks);
 594         return 0;
 595 }
 596
 597 static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
 598 {
 599         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 600
 601         chip->playback_substream = NULL;
 602         return 0;
 603 }
 604
 605 static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
 606 {
 607         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 608
 609         chip->capture_substream = NULL;
 610         return 0;
 611 }
 612
 613 static int snd_es1688_free(struct snd_es1688 *chip)
 614 {
 615         if (chip->hardware != ES1688_HW_UNDEF)
 616                 snd_es1688_init(chip, 0);
 617         if (chip->res_port)
 618                 release_and_free_resource(chip->res_port);
 619         if (chip->irq >= 0)
 620                 free_irq(chip->irq, (void *) chip);
 621         if (chip->dma8 >= 0) {
 622                 disable_dma(chip->dma8);
 623                 free_dma(chip->dma8);
 624         }
 625         return 0;
 626 }
 627
 628 static int snd_es1688_dev_free(struct snd_device *device)
 629 {
 630         struct snd_es1688 *chip = device->device_data;
 631         return snd_es1688_free(chip);
 632 }
 633
 634 static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
 635 {
 636         static char tmp[16];
 637         sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
 638         return tmp;
 639 }
 640
 641 int snd_es1688_create(struct snd_card *card,
 642                       struct snd_es1688 *chip,
 643                       unsigned long port,
 644                       unsigned long mpu_port,
 645                       int irq,
 646                       int mpu_irq,
 647                       int dma8,
 648                       unsigned short hardware)
 649 {
 650         static struct snd_device_ops ops = {
 651                 .dev_free =     snd_es1688_dev_free,
 652         };
 653
 654         int err;
 655
 656         if (chip == NULL)
 657                 return -ENOMEM;
 658         chip->irq = -1;
 659         chip->dma8 = -1;
 660         chip->hardware = ES1688_HW_UNDEF;
 661
 662         chip->res_port = request_region(port + 4, 12, "ES1688");
 663         if (chip->res_port == NULL) {
 664                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
 665                 err = -EBUSY;
 666                 goto exit;
 667         }
 668
 669         err = request_irq(irq, snd_es1688_interrupt, 0, "ES1688", (void *) chip);
 670         if (err < 0) {
 671                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
 672                 goto exit;
 673         }
 674
 675         chip->irq = irq;
 676         err = request_dma(dma8, "ES1688");
 677
 678         if (err < 0) {
 679                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
 680                 goto exit;
 681         }
 682         chip->dma8 = dma8;
 683
 684         spin_lock_init(&chip->reg_lock);
 685         spin_lock_init(&chip->mixer_lock);
 686         chip->port = port;
 687         mpu_port &= ~0x000f;
 688         if (mpu_port < 0x300 || mpu_port > 0x330)
 689                 mpu_port = 0;
 690         chip->mpu_port = mpu_port;
 691         chip->mpu_irq = mpu_irq;
 692         chip->hardware = hardware;
 693
 694         err = snd_es1688_probe(chip);
 695         if (err < 0)
 696                 goto exit;
 697
 698         err = snd_es1688_init(chip, 1);
 699         if (err < 0)
 700                 goto exit;
 701
 702         /* Register device */
 703         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 704 exit:
 705         if (err)
 706                 snd_es1688_free(chip);
 707         return err;
 708 }
 709
 710 static struct snd_pcm_ops snd_es1688_playback_ops = {
 711         .open =                 snd_es1688_playback_open,
 712         .close =                snd_es1688_playback_close,
 713         .ioctl =                snd_es1688_ioctl,
 714         .hw_params =            snd_es1688_hw_params,
 715         .hw_free =              snd_es1688_hw_free,
 716         .prepare =              snd_es1688_playback_prepare,
 717         .trigger =              snd_es1688_playback_trigger,
 718         .pointer =              snd_es1688_playback_pointer,
 719 };
 720
 721 static struct snd_pcm_ops snd_es1688_capture_ops = {
 722         .open =                 snd_es1688_capture_open,
 723         .close =                snd_es1688_capture_close,
 724         .ioctl =                snd_es1688_ioctl,
 725         .hw_params =            snd_es1688_hw_params,
 726         .hw_free =              snd_es1688_hw_free,
 727         .prepare =              snd_es1688_capture_prepare,
 728         .trigger =              snd_es1688_capture_trigger,
 729         .pointer =              snd_es1688_capture_pointer,
 730 };
 731
 732 int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip,
 733                    int device, struct snd_pcm **rpcm)
 734 {
 735         struct snd_pcm *pcm;
 736         int err;
 737
 738         err = snd_pcm_new(card, "ESx688", device, 1, 1, &pcm);
 739         if (err < 0)
 740                 return err;
 741
 742         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
 743         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
 744
 745         pcm->private_data = chip;
 746         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
 747         sprintf(pcm->name, snd_es1688_chip_id(chip));
 748         chip->pcm = pcm;
 749
 750         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 751                                               snd_dma_isa_data(),
 752                                               64*1024, 64*1024);
 753
 754         if (rpcm)
 755                 *rpcm = pcm;
 756         return 0;
 757 }
 758
 759 /*
 760  *  MIXER part
 761  */
 762
 763 static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 764 {
 765         static char *texts[9] = {
 766                 "Mic", "Mic Master", "CD", "AOUT",
 767                 "Mic1", "Mix", "Line", "Master"
 768         };
 769
 770         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 771         uinfo->count = 1;
 772         uinfo->value.enumerated.items = 8;
 773         if (uinfo->value.enumerated.item > 7)
 774                 uinfo->value.enumerated.item = 7;
 775         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 776         return 0;
 777 }
 778
 779 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 780 {
 781         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 782         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
 783         return 0;
 784 }
 785
 786 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 787 {
 788         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 789         unsigned long flags;
 790         unsigned char oval, nval;
 791         int change;
 792
 793         if (ucontrol->value.enumerated.item[0] > 8)
 794                 return -EINVAL;
 795         spin_lock_irqsave(&chip->reg_lock, flags);
 796         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
 797         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
 798         change = nval != oval;
 799         if (change)
 800                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
 801         spin_unlock_irqrestore(&chip->reg_lock, flags);
 802         return change;
 803 }
 804
 805 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
 806 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 807   .info = snd_es1688_info_single, \
 808   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
 809   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 810
 811 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 812 {
 813         int mask = (kcontrol->private_value >> 16) & 0xff;
 814
 815         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 816         uinfo->count = 1;
 817         uinfo->value.integer.min = 0;
 818         uinfo->value.integer.max = mask;
 819         return 0;
 820 }
 821
 822 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 823 {
 824         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 825         unsigned long flags;
 826         int reg = kcontrol->private_value & 0xff;
 827         int shift = (kcontrol->private_value >> 8) & 0xff;
 828         int mask = (kcontrol->private_value >> 16) & 0xff;
 829         int invert = (kcontrol->private_value >> 24) & 0xff;
 830
 831         spin_lock_irqsave(&chip->reg_lock, flags);
 832         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
 833         spin_unlock_irqrestore(&chip->reg_lock, flags);
 834         if (invert)
 835                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 836         return 0;
 837 }
 838
 839 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 840 {
 841         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 842         unsigned long flags;
 843         int reg = kcontrol->private_value & 0xff;
 844         int shift = (kcontrol->private_value >> 8) & 0xff;
 845         int mask = (kcontrol->private_value >> 16) & 0xff;
 846         int invert = (kcontrol->private_value >> 24) & 0xff;
 847         int change;
 848         unsigned char oval, nval;
 849
 850         nval = (ucontrol->value.integer.value[0] & mask);
 851         if (invert)
 852                 nval = mask - nval;
 853         nval <<= shift;
 854         spin_lock_irqsave(&chip->reg_lock, flags);
 855         oval = snd_es1688_mixer_read(chip, reg);
 856         nval = (oval & ~(mask << shift)) | nval;
 857         change = nval != oval;
 858         if (change)
 859                 snd_es1688_mixer_write(chip, reg, nval);
 860         spin_unlock_irqrestore(&chip->reg_lock, flags);
 861         return change;
 862 }
 863
 864 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 865 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 866   .info = snd_es1688_info_double, \
 867   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
 868   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
 869
 870 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 871 {
 872         int mask = (kcontrol->private_value >> 24) & 0xff;
 873
 874         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 875         uinfo->count = 2;
 876         uinfo->value.integer.min = 0;
 877         uinfo->value.integer.max = mask;
 878         return 0;
 879 }
 880
 881 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 882 {
 883         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 884         unsigned long flags;
 885         int left_reg = kcontrol->private_value & 0xff;
 886         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 887         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 888         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 889         int mask = (kcontrol->private_value >> 24) & 0xff;
 890         int invert = (kcontrol->private_value >> 22) & 1;
 891         unsigned char left, right;
 892
 893         spin_lock_irqsave(&chip->reg_lock, flags);
 894         if (left_reg < 0xa0)
 895                 left = snd_es1688_mixer_read(chip, left_reg);
 896         else
 897                 left = snd_es1688_read(chip, left_reg);
 898         if (left_reg != right_reg) {
 899                 if (right_reg < 0xa0)
 900                         right = snd_es1688_mixer_read(chip, right_reg);
 901                 else
 902                         right = snd_es1688_read(chip, right_reg);
 903         } else
 904                 right = left;
 905         spin_unlock_irqrestore(&chip->reg_lock, flags);
 906         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
 907         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
 908         if (invert) {
 909                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 910                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 911         }
 912         return 0;
 913 }
 914
 915 static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 916 {
 917         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 918         unsigned long flags;
 919         int left_reg = kcontrol->private_value & 0xff;
 920         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 921         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 922         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 923         int mask = (kcontrol->private_value >> 24) & 0xff;
 924         int invert = (kcontrol->private_value >> 22) & 1;
 925         int change;
 926         unsigned char val1, val2, oval1, oval2;
 927
 928         val1 = ucontrol->value.integer.value[0] & mask;
 929         val2 = ucontrol->value.integer.value[1] & mask;
 930         if (invert) {
 931                 val1 = mask - val1;
 932                 val2 = mask - val2;
 933         }
 934         val1 <<= shift_left;
 935         val2 <<= shift_right;
 936         spin_lock_irqsave(&chip->reg_lock, flags);
 937         if (left_reg != right_reg) {
 938                 if (left_reg < 0xa0)
 939                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 940                 else
 941                         oval1 = snd_es1688_read(chip, left_reg);
 942                 if (right_reg < 0xa0)
 943                         oval2 = snd_es1688_mixer_read(chip, right_reg);
 944                 else
 945                         oval2 = snd_es1688_read(chip, right_reg);
 946                 val1 = (oval1 & ~(mask << shift_left)) | val1;
 947                 val2 = (oval2 & ~(mask << shift_right)) | val2;
 948                 change = val1 != oval1 || val2 != oval2;
 949                 if (change) {
 950                         if (left_reg < 0xa0)
 951                                 snd_es1688_mixer_write(chip, left_reg, val1);
 952                         else
 953                                 snd_es1688_write(chip, left_reg, val1);
 954                         if (right_reg < 0xa0)
 955                                 snd_es1688_mixer_write(chip, right_reg, val1);
 956                         else
 957                                 snd_es1688_write(chip, right_reg, val1);
 958                 }
 959         } else {
 960                 if (left_reg < 0xa0)
 961                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 962                 else
 963                         oval1 = snd_es1688_read(chip, left_reg);
 964                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 965                 change = val1 != oval1;
 966                 if (change) {
 967                         if (left_reg < 0xa0)
 968                                 snd_es1688_mixer_write(chip, left_reg, val1);
 969                         else
 970                                 snd_es1688_write(chip, left_reg, val1);
 971                 }
 972
 973         }
 974         spin_unlock_irqrestore(&chip->reg_lock, flags);
 975         return change;
 976 }
 977
 978 static struct snd_kcontrol_new snd_es1688_controls[] = {
 979 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
 980 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
 981 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
 982 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
 983 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
 984 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
 985 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
 986 ES1688_SINGLE("Beep Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
 987 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
 988 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
 989 {
 990         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 991         .name = "Capture Source",
 992         .info = snd_es1688_info_mux,
 993         .get = snd_es1688_get_mux,
 994         .put = snd_es1688_put_mux,
 995 },
 996 };
 997
 998 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
 999
1000 static unsigned char snd_es1688_init_table[][2] = {
1001         { ES1688_MASTER_DEV, 0 },
1002         { ES1688_PCM_DEV, 0 },
1003         { ES1688_LINE_DEV, 0 },
1004         { ES1688_CD_DEV, 0 },
1005         { ES1688_FM_DEV, 0 },
1006         { ES1688_MIC_DEV, 0 },
1007         { ES1688_AUX_DEV, 0 },
1008         { ES1688_SPEAKER_DEV, 0 },
1009         { ES1688_RECLEV_DEV, 0 },
1010         { ES1688_REC_DEV, 0x17 }
1011 };
1012
1013 int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip)
1014 {
1015         unsigned int idx;
1016         int err;
1017         unsigned char reg, val;
1018
1019         if (snd_BUG_ON(!chip || !card))
1020                 return -EINVAL;
1021
1022         strcpy(card->mixername, snd_es1688_chip_id(chip));
1023
1024         for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1025                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1026                         return err;
1027         }
1028         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1029                 reg = snd_es1688_init_table[idx][0];
1030                 val = snd_es1688_init_table[idx][1];
1031                 if (reg < 0xa0)
1032                         snd_es1688_mixer_write(chip, reg, val);
1033                 else
1034                         snd_es1688_write(chip, reg, val);
1035         }
1036         return 0;
1037 }
1038
1039 EXPORT_SYMBOL(snd_es1688_mixer_write);
1040 EXPORT_SYMBOL(snd_es1688_create);
1041 EXPORT_SYMBOL(snd_es1688_pcm);
1042 EXPORT_SYMBOL(snd_es1688_mixer);
1043
1044 /*
1045  *  INIT part
1046  */
1047
1048 static int __init alsa_es1688_init(void)
1049 {
1050         return 0;
1051 }
1052
1053 static void __exit alsa_es1688_exit(void)
1054 {
1055 }
1056
1057 module_init(alsa_es1688_init)
1058 module_exit(alsa_es1688_exit)