kernel/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 <linux/io.h>
  29 #include <sound/core.h>
  30 #include <sound/es1688.h>
  31 #include <sound/initval.h>
  32
  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         release_and_free_resource(chip->res_port);
 618         if (chip->irq >= 0)
 619                 free_irq(chip->irq, (void *) chip);
 620         if (chip->dma8 >= 0) {
 621                 disable_dma(chip->dma8);
 622                 free_dma(chip->dma8);
 623         }
 624         return 0;
 625 }
 626
 627 static int snd_es1688_dev_free(struct snd_device *device)
 628 {
 629         struct snd_es1688 *chip = device->device_data;
 630         return snd_es1688_free(chip);
 631 }
 632
 633 static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
 634 {
 635         static char tmp[16];
 636         sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
 637         return tmp;
 638 }
 639
 640 int snd_es1688_create(struct snd_card *card,
 641                       struct snd_es1688 *chip,
 642                       unsigned long port,
 643                       unsigned long mpu_port,
 644                       int irq,
 645                       int mpu_irq,
 646                       int dma8,
 647                       unsigned short hardware)
 648 {
 649         static struct snd_device_ops ops = {
 650                 .dev_free =     snd_es1688_dev_free,
 651         };
 652
 653         int err;
 654
 655         if (chip == NULL)
 656                 return -ENOMEM;
 657         chip->irq = -1;
 658         chip->dma8 = -1;
 659         chip->hardware = ES1688_HW_UNDEF;
 660
 661         chip->res_port = request_region(port + 4, 12, "ES1688");
 662         if (chip->res_port == NULL) {
 663                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
 664                 err = -EBUSY;
 665                 goto exit;
 666         }
 667
 668         err = request_irq(irq, snd_es1688_interrupt, 0, "ES1688", (void *) chip);
 669         if (err < 0) {
 670                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
 671                 goto exit;
 672         }
 673
 674         chip->irq = irq;
 675         err = request_dma(dma8, "ES1688");
 676
 677         if (err < 0) {
 678                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
 679                 goto exit;
 680         }
 681         chip->dma8 = dma8;
 682
 683         spin_lock_init(&chip->reg_lock);
 684         spin_lock_init(&chip->mixer_lock);
 685         chip->port = port;
 686         mpu_port &= ~0x000f;
 687         if (mpu_port < 0x300 || mpu_port > 0x330)
 688                 mpu_port = 0;
 689         chip->mpu_port = mpu_port;
 690         chip->mpu_irq = mpu_irq;
 691         chip->hardware = hardware;
 692
 693         err = snd_es1688_probe(chip);
 694         if (err < 0)
 695                 goto exit;
 696
 697         err = snd_es1688_init(chip, 1);
 698         if (err < 0)
 699                 goto exit;
 700
 701         /* Register device */
 702         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 703 exit:
 704         if (err)
 705                 snd_es1688_free(chip);
 706         return err;
 707 }
 708
 709 static struct snd_pcm_ops snd_es1688_playback_ops = {
 710         .open =                 snd_es1688_playback_open,
 711         .close =                snd_es1688_playback_close,
 712         .ioctl =                snd_es1688_ioctl,
 713         .hw_params =            snd_es1688_hw_params,
 714         .hw_free =              snd_es1688_hw_free,
 715         .prepare =              snd_es1688_playback_prepare,
 716         .trigger =              snd_es1688_playback_trigger,
 717         .pointer =              snd_es1688_playback_pointer,
 718 };
 719
 720 static struct snd_pcm_ops snd_es1688_capture_ops = {
 721         .open =                 snd_es1688_capture_open,
 722         .close =                snd_es1688_capture_close,
 723         .ioctl =                snd_es1688_ioctl,
 724         .hw_params =            snd_es1688_hw_params,
 725         .hw_free =              snd_es1688_hw_free,
 726         .prepare =              snd_es1688_capture_prepare,
 727         .trigger =              snd_es1688_capture_trigger,
 728         .pointer =              snd_es1688_capture_pointer,
 729 };
 730
 731 int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip, int device)
 732 {
 733         struct snd_pcm *pcm;
 734         int err;
 735
 736         err = snd_pcm_new(card, "ESx688", device, 1, 1, &pcm);
 737         if (err < 0)
 738                 return err;
 739
 740         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
 741         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
 742
 743         pcm->private_data = chip;
 744         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
 745         sprintf(pcm->name, snd_es1688_chip_id(chip));
 746         chip->pcm = pcm;
 747
 748         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 749                                               snd_dma_isa_data(),
 750                                               64*1024, 64*1024);
 751         return 0;
 752 }
 753
 754 /*
 755  *  MIXER part
 756  */
 757
 758 static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 759 {
 760         static const char * const texts[8] = {
 761                 "Mic", "Mic Master", "CD", "AOUT",
 762                 "Mic1", "Mix", "Line", "Master"
 763         };
 764
 765         return snd_ctl_enum_info(uinfo, 1, 8, texts);
 766 }
 767
 768 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 769 {
 770         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 771         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
 772         return 0;
 773 }
 774
 775 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 776 {
 777         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 778         unsigned long flags;
 779         unsigned char oval, nval;
 780         int change;
 781
 782         if (ucontrol->value.enumerated.item[0] > 8)
 783                 return -EINVAL;
 784         spin_lock_irqsave(&chip->reg_lock, flags);
 785         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
 786         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
 787         change = nval != oval;
 788         if (change)
 789                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
 790         spin_unlock_irqrestore(&chip->reg_lock, flags);
 791         return change;
 792 }
 793
 794 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
 795 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 796   .info = snd_es1688_info_single, \
 797   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
 798   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 799
 800 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 801 {
 802         int mask = (kcontrol->private_value >> 16) & 0xff;
 803
 804         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 805         uinfo->count = 1;
 806         uinfo->value.integer.min = 0;
 807         uinfo->value.integer.max = mask;
 808         return 0;
 809 }
 810
 811 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 812 {
 813         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 814         unsigned long flags;
 815         int reg = kcontrol->private_value & 0xff;
 816         int shift = (kcontrol->private_value >> 8) & 0xff;
 817         int mask = (kcontrol->private_value >> 16) & 0xff;
 818         int invert = (kcontrol->private_value >> 24) & 0xff;
 819
 820         spin_lock_irqsave(&chip->reg_lock, flags);
 821         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
 822         spin_unlock_irqrestore(&chip->reg_lock, flags);
 823         if (invert)
 824                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 825         return 0;
 826 }
 827
 828 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 829 {
 830         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 831         unsigned long flags;
 832         int reg = kcontrol->private_value & 0xff;
 833         int shift = (kcontrol->private_value >> 8) & 0xff;
 834         int mask = (kcontrol->private_value >> 16) & 0xff;
 835         int invert = (kcontrol->private_value >> 24) & 0xff;
 836         int change;
 837         unsigned char oval, nval;
 838
 839         nval = (ucontrol->value.integer.value[0] & mask);
 840         if (invert)
 841                 nval = mask - nval;
 842         nval <<= shift;
 843         spin_lock_irqsave(&chip->reg_lock, flags);
 844         oval = snd_es1688_mixer_read(chip, reg);
 845         nval = (oval & ~(mask << shift)) | nval;
 846         change = nval != oval;
 847         if (change)
 848                 snd_es1688_mixer_write(chip, reg, nval);
 849         spin_unlock_irqrestore(&chip->reg_lock, flags);
 850         return change;
 851 }
 852
 853 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 854 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 855   .info = snd_es1688_info_double, \
 856   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
 857   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
 858
 859 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 860 {
 861         int mask = (kcontrol->private_value >> 24) & 0xff;
 862
 863         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 864         uinfo->count = 2;
 865         uinfo->value.integer.min = 0;
 866         uinfo->value.integer.max = mask;
 867         return 0;
 868 }
 869
 870 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 871 {
 872         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 873         unsigned long flags;
 874         int left_reg = kcontrol->private_value & 0xff;
 875         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 876         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 877         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 878         int mask = (kcontrol->private_value >> 24) & 0xff;
 879         int invert = (kcontrol->private_value >> 22) & 1;
 880         unsigned char left, right;
 881
 882         spin_lock_irqsave(&chip->reg_lock, flags);
 883         if (left_reg < 0xa0)
 884                 left = snd_es1688_mixer_read(chip, left_reg);
 885         else
 886                 left = snd_es1688_read(chip, left_reg);
 887         if (left_reg != right_reg) {
 888                 if (right_reg < 0xa0)
 889                         right = snd_es1688_mixer_read(chip, right_reg);
 890                 else
 891                         right = snd_es1688_read(chip, right_reg);
 892         } else
 893                 right = left;
 894         spin_unlock_irqrestore(&chip->reg_lock, flags);
 895         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
 896         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
 897         if (invert) {
 898                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 899                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 900         }
 901         return 0;
 902 }
 903
 904 static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 905 {
 906         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 907         unsigned long flags;
 908         int left_reg = kcontrol->private_value & 0xff;
 909         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 910         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 911         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 912         int mask = (kcontrol->private_value >> 24) & 0xff;
 913         int invert = (kcontrol->private_value >> 22) & 1;
 914         int change;
 915         unsigned char val1, val2, oval1, oval2;
 916
 917         val1 = ucontrol->value.integer.value[0] & mask;
 918         val2 = ucontrol->value.integer.value[1] & mask;
 919         if (invert) {
 920                 val1 = mask - val1;
 921                 val2 = mask - val2;
 922         }
 923         val1 <<= shift_left;
 924         val2 <<= shift_right;
 925         spin_lock_irqsave(&chip->reg_lock, flags);
 926         if (left_reg != right_reg) {
 927                 if (left_reg < 0xa0)
 928                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 929                 else
 930                         oval1 = snd_es1688_read(chip, left_reg);
 931                 if (right_reg < 0xa0)
 932                         oval2 = snd_es1688_mixer_read(chip, right_reg);
 933                 else
 934                         oval2 = snd_es1688_read(chip, right_reg);
 935                 val1 = (oval1 & ~(mask << shift_left)) | val1;
 936                 val2 = (oval2 & ~(mask << shift_right)) | val2;
 937                 change = val1 != oval1 || val2 != oval2;
 938                 if (change) {
 939                         if (left_reg < 0xa0)
 940                                 snd_es1688_mixer_write(chip, left_reg, val1);
 941                         else
 942                                 snd_es1688_write(chip, left_reg, val1);
 943                         if (right_reg < 0xa0)
 944                                 snd_es1688_mixer_write(chip, right_reg, val1);
 945                         else
 946                                 snd_es1688_write(chip, right_reg, val1);
 947                 }
 948         } else {
 949                 if (left_reg < 0xa0)
 950                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 951                 else
 952                         oval1 = snd_es1688_read(chip, left_reg);
 953                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 954                 change = val1 != oval1;
 955                 if (change) {
 956                         if (left_reg < 0xa0)
 957                                 snd_es1688_mixer_write(chip, left_reg, val1);
 958                         else
 959                                 snd_es1688_write(chip, left_reg, val1);
 960                 }
 961
 962         }
 963         spin_unlock_irqrestore(&chip->reg_lock, flags);
 964         return change;
 965 }
 966
 967 static struct snd_kcontrol_new snd_es1688_controls[] = {
 968 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
 969 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
 970 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
 971 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
 972 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
 973 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
 974 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
 975 ES1688_SINGLE("Beep Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
 976 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
 977 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
 978 {
 979         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 980         .name = "Capture Source",
 981         .info = snd_es1688_info_mux,
 982         .get = snd_es1688_get_mux,
 983         .put = snd_es1688_put_mux,
 984 },
 985 };
 986
 987 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
 988
 989 static unsigned char snd_es1688_init_table[][2] = {
 990         { ES1688_MASTER_DEV, 0 },
 991         { ES1688_PCM_DEV, 0 },
 992         { ES1688_LINE_DEV, 0 },
 993         { ES1688_CD_DEV, 0 },
 994         { ES1688_FM_DEV, 0 },
 995         { ES1688_MIC_DEV, 0 },
 996         { ES1688_AUX_DEV, 0 },
 997         { ES1688_SPEAKER_DEV, 0 },
 998         { ES1688_RECLEV_DEV, 0 },
 999         { ES1688_REC_DEV, 0x17 }
1000 };
1001
1002 int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip)
1003 {
1004         unsigned int idx;
1005         int err;
1006         unsigned char reg, val;
1007
1008         if (snd_BUG_ON(!chip || !card))
1009                 return -EINVAL;
1010
1011         strcpy(card->mixername, snd_es1688_chip_id(chip));
1012
1013         for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1014                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1015                         return err;
1016         }
1017         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1018                 reg = snd_es1688_init_table[idx][0];
1019                 val = snd_es1688_init_table[idx][1];
1020                 if (reg < 0xa0)
1021                         snd_es1688_mixer_write(chip, reg, val);
1022                 else
1023                         snd_es1688_write(chip, reg, val);
1024         }
1025         return 0;
1026 }
1027
1028 EXPORT_SYMBOL(snd_es1688_mixer_write);
1029 EXPORT_SYMBOL(snd_es1688_create);
1030 EXPORT_SYMBOL(snd_es1688_pcm);
1031 EXPORT_SYMBOL(snd_es1688_mixer);
1032
1033 /*
1034  *  INIT part
1035  */
1036
1037 static int __init alsa_es1688_init(void)
1038 {
1039         return 0;
1040 }
1041
1042 static void __exit alsa_es1688_exit(void)
1043 {
1044 }
1045
1046 module_init(alsa_es1688_init)
1047 module_exit(alsa_es1688_exit)