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