SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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(KERN_DEBUG "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(KERN_ERR "[0x%lx] ESS: AudioDrive ES488 detected, "
 171                            "but driver is in another place\n", chip->port);
 172                 return -ENODEV;
 173         case 0x6880:
 174                 hw = (chip->version & 0x0f) >= 8 ? ES1688_HW_1688 : ES1688_HW_688;
 175                 break;
 176         default:
 177                 snd_printk(KERN_ERR "[0x%lx] ESS: unknown AudioDrive chip "
 178                            "with version 0x%x (Jazz16 soundcard?)\n",
 179                            chip->port, chip->version);
 180                 return -ENODEV;
 181         }
 182
 183         spin_lock_irqsave(&chip->reg_lock, flags);
 184         snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 185         snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 186         spin_unlock_irqrestore(&chip->reg_lock, flags);
 187
 188         /* enable joystick, but disable OPL3 */
 189         spin_lock_irqsave(&chip->mixer_lock, flags);
 190         snd_es1688_mixer_write(chip, 0x40, 0x01);
 191         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 192
 193         return 0;
 194 }
 195
 196 static int snd_es1688_init(struct snd_es1688 * chip, int enable)
 197 {
 198         static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
 199         unsigned long flags;
 200         int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
 201
 202         /* ok.. setup MPU-401 port and joystick and OPL3 */
 203         cfg = 0x01;             /* enable joystick, but disable OPL3 */
 204         if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
 205                 tmp = (chip->mpu_port & 0x0f0) >> 4;
 206                 if (tmp <= 3) {
 207                         switch (chip->mpu_irq) {
 208                         case 9:
 209                                 tmp1 = 4;
 210                                 break;
 211                         case 5:
 212                                 tmp1 = 5;
 213                                 break;
 214                         case 7:
 215                                 tmp1 = 6;
 216                                 break;
 217                         case 10:
 218                                 tmp1 = 7;
 219                                 break;
 220                         default:
 221                                 tmp1 = 0;
 222                         }
 223                         if (tmp1) {
 224                                 cfg |= (tmp << 3) | (tmp1 << 5);
 225                         }
 226                 }
 227         }
 228 #if 0
 229         snd_printk(KERN_DEBUG "mpu cfg = 0x%x\n", cfg);
 230 #endif
 231         spin_lock_irqsave(&chip->reg_lock, flags);
 232         snd_es1688_mixer_write(chip, 0x40, cfg);
 233         spin_unlock_irqrestore(&chip->reg_lock, flags);
 234         /* --- */
 235         spin_lock_irqsave(&chip->reg_lock, flags);
 236         snd_es1688_read(chip, 0xb1);
 237         snd_es1688_read(chip, 0xb2);
 238         spin_unlock_irqrestore(&chip->reg_lock, flags);
 239         if (enable) {
 240                 cfg = 0xf0;     /* enable only DMA counter interrupt */
 241                 irq_bits = irqs[chip->irq & 0x0f];
 242                 if (irq_bits < 0) {
 243                         snd_printk(KERN_ERR "[0x%lx] ESS: bad IRQ %d "
 244                                    "for ES1688 chip!!\n",
 245                                    chip->port, chip->irq);
 246 #if 0
 247                         irq_bits = 0;
 248                         cfg = 0x10;
 249 #endif
 250                         return -EINVAL;
 251                 }
 252                 spin_lock_irqsave(&chip->reg_lock, flags);
 253                 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
 254                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 255                 cfg = 0xf0;     /* extended mode DMA enable */
 256                 dma = chip->dma8;
 257                 if (dma > 3 || dma == 2) {
 258                         snd_printk(KERN_ERR "[0x%lx] ESS: bad DMA channel %d "
 259                                    "for ES1688 chip!!\n", chip->port, dma);
 260 #if 0
 261                         dma_bits = 0;
 262                         cfg = 0x00;     /* disable all DMA */
 263 #endif
 264                         return -EINVAL;
 265                 } else {
 266                         dma_bits = dma;
 267                         if (dma != 3)
 268                                 dma_bits++;
 269                 }
 270                 spin_lock_irqsave(&chip->reg_lock, flags);
 271                 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
 272                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 273         } else {
 274                 spin_lock_irqsave(&chip->reg_lock, flags);
 275                 snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 276                 snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 277                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 278         }
 279         spin_lock_irqsave(&chip->reg_lock, flags);
 280         snd_es1688_read(chip, 0xb1);
 281         snd_es1688_read(chip, 0xb2);
 282         snd_es1688_reset(chip);
 283         spin_unlock_irqrestore(&chip->reg_lock, flags);
 284         return 0;
 285 }
 286
 287 /*
 288
 289  */
 290
 291 static struct snd_ratnum clocks[2] = {
 292         {
 293                 .num = 795444,
 294                 .den_min = 1,
 295                 .den_max = 128,
 296                 .den_step = 1,
 297         },
 298         {
 299                 .num = 397722,
 300                 .den_min = 1,
 301                 .den_max = 128,
 302                 .den_step = 1,
 303         }
 304 };
 305
 306 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
 307         .nrats = 2,
 308         .rats = clocks,
 309 };
 310
 311 static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
 312 {
 313         struct snd_pcm_runtime *runtime = substream->runtime;
 314         unsigned int bits, divider;
 315
 316         if (runtime->rate_num == clocks[0].num)
 317                 bits = 256 - runtime->rate_den;
 318         else
 319                 bits = 128 - runtime->rate_den;
 320         /* set filter register */
 321         divider = 256 - 7160000*20/(8*82*runtime->rate);
 322         /* write result to hardware */
 323         snd_es1688_write(chip, 0xa1, bits);
 324         snd_es1688_write(chip, 0xa2, divider);
 325 }
 326
 327 static int snd_es1688_ioctl(struct snd_pcm_substream *substream,
 328                             unsigned int cmd, void *arg)
 329 {
 330         return snd_pcm_lib_ioctl(substream, cmd, arg);
 331 }
 332
 333 static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
 334 {
 335         int val;
 336
 337         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 338                 value = 0x00;
 339         } else if (cmd != SNDRV_PCM_TRIGGER_START) {
 340                 return -EINVAL;
 341         }
 342         spin_lock(&chip->reg_lock);
 343         chip->trigger_value = value;
 344         val = snd_es1688_read(chip, 0xb8);
 345         if ((val < 0) || (val & 0x0f) == value) {
 346                 spin_unlock(&chip->reg_lock);
 347                 return -EINVAL; /* something is wrong */
 348         }
 349 #if 0
 350         printk(KERN_DEBUG "trigger: val = 0x%x, value = 0x%x\n", val, value);
 351         printk(KERN_DEBUG "trigger: pointer = 0x%x\n",
 352                snd_dma_pointer(chip->dma8, chip->dma_size));
 353 #endif
 354         snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
 355         spin_unlock(&chip->reg_lock);
 356         return 0;
 357 }
 358
 359 static int snd_es1688_hw_params(struct snd_pcm_substream *substream,
 360                                 struct snd_pcm_hw_params *hw_params)
 361 {
 362         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 363 }
 364
 365 static int snd_es1688_hw_free(struct snd_pcm_substream *substream)
 366 {
 367         return snd_pcm_lib_free_pages(substream);
 368 }
 369
 370 static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
 371 {
 372         unsigned long flags;
 373         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 374         struct snd_pcm_runtime *runtime = substream->runtime;
 375         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 376         unsigned int count = snd_pcm_lib_period_bytes(substream);
 377
 378         chip->dma_size = size;
 379         spin_lock_irqsave(&chip->reg_lock, flags);
 380         snd_es1688_reset(chip);
 381         snd_es1688_set_rate(chip, substream);
 382         snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
 383         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 384         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 385         if (runtime->channels == 1) {
 386                 if (snd_pcm_format_width(runtime->format) == 8) {
 387                         /* 8. bit mono */
 388                         snd_es1688_write(chip, 0xb6, 0x80);
 389                         snd_es1688_write(chip, 0xb7, 0x51);
 390                         snd_es1688_write(chip, 0xb7, 0xd0);
 391                 } else {
 392                         /* 16. bit mono */
 393                         snd_es1688_write(chip, 0xb6, 0x00);
 394                         snd_es1688_write(chip, 0xb7, 0x71);
 395                         snd_es1688_write(chip, 0xb7, 0xf4);
 396                 }
 397         } else {
 398                 if (snd_pcm_format_width(runtime->format) == 8) {
 399                         /* 8. bit stereo */
 400                         snd_es1688_write(chip, 0xb6, 0x80);
 401                         snd_es1688_write(chip, 0xb7, 0x51);
 402                         snd_es1688_write(chip, 0xb7, 0x98);
 403                 } else {
 404                         /* 16. bit stereo */
 405                         snd_es1688_write(chip, 0xb6, 0x00);
 406                         snd_es1688_write(chip, 0xb7, 0x71);
 407                         snd_es1688_write(chip, 0xb7, 0xbc);
 408                 }
 409         }
 410         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 411         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 412         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
 413         spin_unlock_irqrestore(&chip->reg_lock, flags);
 414         /* --- */
 415         count = -count;
 416         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 417         spin_lock_irqsave(&chip->reg_lock, flags);
 418         snd_es1688_write(chip, 0xa4, (unsigned char) count);
 419         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 420         spin_unlock_irqrestore(&chip->reg_lock, flags);
 421         return 0;
 422 }
 423
 424 static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
 425                                        int cmd)
 426 {
 427         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 428         return snd_es1688_trigger(chip, cmd, 0x05);
 429 }
 430
 431 static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
 432 {
 433         unsigned long flags;
 434         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 435         struct snd_pcm_runtime *runtime = substream->runtime;
 436         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 437         unsigned int count = snd_pcm_lib_period_bytes(substream);
 438
 439         chip->dma_size = size;
 440         spin_lock_irqsave(&chip->reg_lock, flags);
 441         snd_es1688_reset(chip);
 442         snd_es1688_set_rate(chip, substream);
 443         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
 444         snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
 445         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 446         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 447         if (runtime->channels == 1) {
 448                 if (snd_pcm_format_width(runtime->format) == 8) {
 449                         /* 8. bit mono */
 450                         snd_es1688_write(chip, 0xb7, 0x51);
 451                         snd_es1688_write(chip, 0xb7, 0xd0);
 452                 } else {
 453                         /* 16. bit mono */
 454                         snd_es1688_write(chip, 0xb7, 0x71);
 455                         snd_es1688_write(chip, 0xb7, 0xf4);
 456                 }
 457         } else {
 458                 if (snd_pcm_format_width(runtime->format) == 8) {
 459                         /* 8. bit stereo */
 460                         snd_es1688_write(chip, 0xb7, 0x51);
 461                         snd_es1688_write(chip, 0xb7, 0x98);
 462                 } else {
 463                         /* 16. bit stereo */
 464                         snd_es1688_write(chip, 0xb7, 0x71);
 465                         snd_es1688_write(chip, 0xb7, 0xbc);
 466                 }
 467         }
 468         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 469         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 470         spin_unlock_irqrestore(&chip->reg_lock, flags);
 471         /* --- */
 472         count = -count;
 473         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 474         spin_lock_irqsave(&chip->reg_lock, flags);
 475         snd_es1688_write(chip, 0xa4, (unsigned char) count);
 476         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 477         spin_unlock_irqrestore(&chip->reg_lock, flags);
 478         return 0;
 479 }
 480
 481 static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
 482                                       int cmd)
 483 {
 484         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 485         return snd_es1688_trigger(chip, cmd, 0x0f);
 486 }
 487
 488 static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id)
 489 {
 490         struct snd_es1688 *chip = dev_id;
 491
 492         if (chip->trigger_value == 0x05)        /* ok.. playback is active */
 493                 snd_pcm_period_elapsed(chip->playback_substream);
 494         if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
 495                 snd_pcm_period_elapsed(chip->capture_substream);
 496
 497         inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
 498         return IRQ_HANDLED;
 499 }
 500
 501 static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
 502 {
 503         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 504         size_t ptr;
 505
 506         if (chip->trigger_value != 0x05)
 507                 return 0;
 508         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 509         return bytes_to_frames(substream->runtime, ptr);
 510 }
 511
 512 static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
 513 {
 514         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 515         size_t ptr;
 516
 517         if (chip->trigger_value != 0x0f)
 518                 return 0;
 519         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 520         return bytes_to_frames(substream->runtime, ptr);
 521 }
 522
 523 /*
 524
 525  */
 526
 527 static struct snd_pcm_hardware snd_es1688_playback =
 528 {
 529         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 530                                  SNDRV_PCM_INFO_MMAP_VALID),
 531         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 532         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 533         .rate_min =             4000,
 534         .rate_max =             48000,
 535         .channels_min =         1,
 536         .channels_max =         2,
 537         .buffer_bytes_max =     65536,
 538         .period_bytes_min =     64,
 539         .period_bytes_max =     65536,
 540         .periods_min =          1,
 541         .periods_max =          1024,
 542         .fifo_size =            0,
 543 };
 544
 545 static struct snd_pcm_hardware snd_es1688_capture =
 546 {
 547         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 548                                  SNDRV_PCM_INFO_MMAP_VALID),
 549         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 550         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 551         .rate_min =             4000,
 552         .rate_max =             48000,
 553         .channels_min =         1,
 554         .channels_max =         2,
 555         .buffer_bytes_max =     65536,
 556         .period_bytes_min =     64,
 557         .period_bytes_max =     65536,
 558         .periods_min =          1,
 559         .periods_max =          1024,
 560         .fifo_size =            0,
 561 };
 562
 563 /*
 564
 565  */
 566
 567 static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
 568 {
 569         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 570         struct snd_pcm_runtime *runtime = substream->runtime;
 571
 572         if (chip->capture_substream != NULL)
 573                 return -EAGAIN;
 574         chip->playback_substream = substream;
 575         runtime->hw = snd_es1688_playback;
 576         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 577                                       &hw_constraints_clocks);
 578         return 0;
 579 }
 580
 581 static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
 582 {
 583         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 584         struct snd_pcm_runtime *runtime = substream->runtime;
 585
 586         if (chip->playback_substream != NULL)
 587                 return -EAGAIN;
 588         chip->capture_substream = substream;
 589         runtime->hw = snd_es1688_capture;
 590         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 591                                       &hw_constraints_clocks);
 592         return 0;
 593 }
 594
 595 static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
 596 {
 597         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 598
 599         chip->playback_substream = NULL;
 600         return 0;
 601 }
 602
 603 static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
 604 {
 605         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 606
 607         chip->capture_substream = NULL;
 608         return 0;
 609 }
 610
 611 static int snd_es1688_free(struct snd_es1688 *chip)
 612 {
 613         if (chip->res_port) {
 614                 snd_es1688_init(chip, 0);
 615                 release_and_free_resource(chip->res_port);
 616         }
 617         if (chip->irq >= 0)
 618                 free_irq(chip->irq, (void *) chip);
 619         if (chip->dma8 >= 0) {
 620                 disable_dma(chip->dma8);
 621                 free_dma(chip->dma8);
 622         }
 623         kfree(chip);
 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                       unsigned long port,
 642                       unsigned long mpu_port,
 643                       int irq,
 644                       int mpu_irq,
 645                       int dma8,
 646                       unsigned short hardware,
 647                       struct snd_es1688 **rchip)
 648 {
 649         static struct snd_device_ops ops = {
 650                 .dev_free =     snd_es1688_dev_free,
 651         };
 652
 653         struct snd_es1688 *chip;
 654         int err;
 655
 656         *rchip = NULL;
 657         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 658         if (chip == NULL)
 659                 return -ENOMEM;
 660         chip->irq = -1;
 661         chip->dma8 = -1;
 662
 663         if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) {
 664                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
 665                 snd_es1688_free(chip);
 666                 return -EBUSY;
 667         }
 668         if (request_irq(irq, snd_es1688_interrupt, IRQF_DISABLED, "ES1688", (void *) chip)) {
 669                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
 670                 snd_es1688_free(chip);
 671                 return -EBUSY;
 672         }
 673         chip->irq = irq;
 674         if (request_dma(dma8, "ES1688")) {
 675                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
 676                 snd_es1688_free(chip);
 677                 return -EBUSY;
 678         }
 679         chip->dma8 = dma8;
 680
 681         spin_lock_init(&chip->reg_lock);
 682         spin_lock_init(&chip->mixer_lock);
 683         chip->card = card;
 684         chip->port = port;
 685         mpu_port &= ~0x000f;
 686         if (mpu_port < 0x300 || mpu_port > 0x330)
 687                 mpu_port = 0;
 688         chip->mpu_port = mpu_port;
 689         chip->mpu_irq = mpu_irq;
 690         chip->hardware = hardware;
 691
 692         if ((err = snd_es1688_probe(chip)) < 0) {
 693                 snd_es1688_free(chip);
 694                 return err;
 695         }
 696         if ((err = snd_es1688_init(chip, 1)) < 0) {
 697                 snd_es1688_free(chip);
 698                 return err;
 699         }
 700
 701         /* Register device */
 702         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 703                 snd_es1688_free(chip);
 704                 return err;
 705         }
 706
 707         *rchip = chip;
 708         return 0;
 709 }
 710
 711 static struct snd_pcm_ops snd_es1688_playback_ops = {
 712         .open =                 snd_es1688_playback_open,
 713         .close =                snd_es1688_playback_close,
 714         .ioctl =                snd_es1688_ioctl,
 715         .hw_params =            snd_es1688_hw_params,
 716         .hw_free =              snd_es1688_hw_free,
 717         .prepare =              snd_es1688_playback_prepare,
 718         .trigger =              snd_es1688_playback_trigger,
 719         .pointer =              snd_es1688_playback_pointer,
 720 };
 721
 722 static struct snd_pcm_ops snd_es1688_capture_ops = {
 723         .open =                 snd_es1688_capture_open,
 724         .close =                snd_es1688_capture_close,
 725         .ioctl =                snd_es1688_ioctl,
 726         .hw_params =            snd_es1688_hw_params,
 727         .hw_free =              snd_es1688_hw_free,
 728         .prepare =              snd_es1688_capture_prepare,
 729         .trigger =              snd_es1688_capture_trigger,
 730         .pointer =              snd_es1688_capture_pointer,
 731 };
 732
 733 int snd_es1688_pcm(struct snd_es1688 * chip, int device, struct snd_pcm ** rpcm)
 734 {
 735         struct snd_pcm *pcm;
 736         int err;
 737
 738         if ((err = snd_pcm_new(chip->card, "ESx688", device, 1, 1, &pcm)) < 0)
 739                 return err;
 740
 741         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
 742         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
 743
 744         pcm->private_data = chip;
 745         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
 746         sprintf(pcm->name, snd_es1688_chip_id(chip));
 747         chip->pcm = pcm;
 748
 749         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 750                                               snd_dma_isa_data(),
 751                                               64*1024, 64*1024);
 752
 753         if (rpcm)
 754                 *rpcm = pcm;
 755         return 0;
 756 }
 757
 758 /*
 759  *  MIXER part
 760  */
 761
 762 static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 763 {
 764         static char *texts[9] = {
 765                 "Mic", "Mic Master", "CD", "AOUT",
 766                 "Mic1", "Mix", "Line", "Master"
 767         };
 768
 769         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 770         uinfo->count = 1;
 771         uinfo->value.enumerated.items = 8;
 772         if (uinfo->value.enumerated.item > 7)
 773                 uinfo->value.enumerated.item = 7;
 774         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 775         return 0;
 776 }
 777
 778 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 779 {
 780         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 781         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
 782         return 0;
 783 }
 784
 785 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 786 {
 787         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 788         unsigned long flags;
 789         unsigned char oval, nval;
 790         int change;
 791
 792         if (ucontrol->value.enumerated.item[0] > 8)
 793                 return -EINVAL;
 794         spin_lock_irqsave(&chip->reg_lock, flags);
 795         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
 796         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
 797         change = nval != oval;
 798         if (change)
 799                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
 800         spin_unlock_irqrestore(&chip->reg_lock, flags);
 801         return change;
 802 }
 803
 804 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
 805 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 806   .info = snd_es1688_info_single, \
 807   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
 808   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 809
 810 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 811 {
 812         int mask = (kcontrol->private_value >> 16) & 0xff;
 813
 814         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 815         uinfo->count = 1;
 816         uinfo->value.integer.min = 0;
 817         uinfo->value.integer.max = mask;
 818         return 0;
 819 }
 820
 821 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 822 {
 823         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 824         unsigned long flags;
 825         int reg = kcontrol->private_value & 0xff;
 826         int shift = (kcontrol->private_value >> 8) & 0xff;
 827         int mask = (kcontrol->private_value >> 16) & 0xff;
 828         int invert = (kcontrol->private_value >> 24) & 0xff;
 829
 830         spin_lock_irqsave(&chip->reg_lock, flags);
 831         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
 832         spin_unlock_irqrestore(&chip->reg_lock, flags);
 833         if (invert)
 834                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 835         return 0;
 836 }
 837
 838 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 839 {
 840         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 841         unsigned long flags;
 842         int reg = kcontrol->private_value & 0xff;
 843         int shift = (kcontrol->private_value >> 8) & 0xff;
 844         int mask = (kcontrol->private_value >> 16) & 0xff;
 845         int invert = (kcontrol->private_value >> 24) & 0xff;
 846         int change;
 847         unsigned char oval, nval;
 848
 849         nval = (ucontrol->value.integer.value[0] & mask);
 850         if (invert)
 851                 nval = mask - nval;
 852         nval <<= shift;
 853         spin_lock_irqsave(&chip->reg_lock, flags);
 854         oval = snd_es1688_mixer_read(chip, reg);
 855         nval = (oval & ~(mask << shift)) | nval;
 856         change = nval != oval;
 857         if (change)
 858                 snd_es1688_mixer_write(chip, reg, nval);
 859         spin_unlock_irqrestore(&chip->reg_lock, flags);
 860         return change;
 861 }
 862
 863 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 864 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 865   .info = snd_es1688_info_double, \
 866   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
 867   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
 868
 869 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 870 {
 871         int mask = (kcontrol->private_value >> 24) & 0xff;
 872
 873         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 874         uinfo->count = 2;
 875         uinfo->value.integer.min = 0;
 876         uinfo->value.integer.max = mask;
 877         return 0;
 878 }
 879
 880 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 881 {
 882         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 883         unsigned long flags;
 884         int left_reg = kcontrol->private_value & 0xff;
 885         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 886         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 887         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 888         int mask = (kcontrol->private_value >> 24) & 0xff;
 889         int invert = (kcontrol->private_value >> 22) & 1;
 890         unsigned char left, right;
 891
 892         spin_lock_irqsave(&chip->reg_lock, flags);
 893         if (left_reg < 0xa0)
 894                 left = snd_es1688_mixer_read(chip, left_reg);
 895         else
 896                 left = snd_es1688_read(chip, left_reg);
 897         if (left_reg != right_reg) {
 898                 if (right_reg < 0xa0)
 899                         right = snd_es1688_mixer_read(chip, right_reg);
 900                 else
 901                         right = snd_es1688_read(chip, right_reg);
 902         } else
 903                 right = left;
 904         spin_unlock_irqrestore(&chip->reg_lock, flags);
 905         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
 906         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
 907         if (invert) {
 908                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 909                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 910         }
 911         return 0;
 912 }
 913
 914 static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 915 {
 916         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 917         unsigned long flags;
 918         int left_reg = kcontrol->private_value & 0xff;
 919         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 920         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 921         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 922         int mask = (kcontrol->private_value >> 24) & 0xff;
 923         int invert = (kcontrol->private_value >> 22) & 1;
 924         int change;
 925         unsigned char val1, val2, oval1, oval2;
 926
 927         val1 = ucontrol->value.integer.value[0] & mask;
 928         val2 = ucontrol->value.integer.value[1] & mask;
 929         if (invert) {
 930                 val1 = mask - val1;
 931                 val2 = mask - val2;
 932         }
 933         val1 <<= shift_left;
 934         val2 <<= shift_right;
 935         spin_lock_irqsave(&chip->reg_lock, flags);
 936         if (left_reg != right_reg) {
 937                 if (left_reg < 0xa0)
 938                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 939                 else
 940                         oval1 = snd_es1688_read(chip, left_reg);
 941                 if (right_reg < 0xa0)
 942                         oval2 = snd_es1688_mixer_read(chip, right_reg);
 943                 else
 944                         oval2 = snd_es1688_read(chip, right_reg);
 945                 val1 = (oval1 & ~(mask << shift_left)) | val1;
 946                 val2 = (oval2 & ~(mask << shift_right)) | val2;
 947                 change = val1 != oval1 || val2 != oval2;
 948                 if (change) {
 949                         if (left_reg < 0xa0)
 950                                 snd_es1688_mixer_write(chip, left_reg, val1);
 951                         else
 952                                 snd_es1688_write(chip, left_reg, val1);
 953                         if (right_reg < 0xa0)
 954                                 snd_es1688_mixer_write(chip, right_reg, val1);
 955                         else
 956                                 snd_es1688_write(chip, right_reg, val1);
 957                 }
 958         } else {
 959                 if (left_reg < 0xa0)
 960                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 961                 else
 962                         oval1 = snd_es1688_read(chip, left_reg);
 963                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 964                 change = val1 != oval1;
 965                 if (change) {
 966                         if (left_reg < 0xa0)
 967                                 snd_es1688_mixer_write(chip, left_reg, val1);
 968                         else
 969                                 snd_es1688_write(chip, left_reg, val1);
 970                 }
 971
 972         }
 973         spin_unlock_irqrestore(&chip->reg_lock, flags);
 974         return change;
 975 }
 976
 977 static struct snd_kcontrol_new snd_es1688_controls[] = {
 978 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
 979 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
 980 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
 981 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
 982 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
 983 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
 984 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
 985 ES1688_SINGLE("Beep Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
 986 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
 987 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
 988 {
 989         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 990         .name = "Capture Source",
 991         .info = snd_es1688_info_mux,
 992         .get = snd_es1688_get_mux,
 993         .put = snd_es1688_put_mux,
 994 },
 995 };
 996
 997 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
 998
 999 static unsigned char snd_es1688_init_table[][2] = {
1000         { ES1688_MASTER_DEV, 0 },
1001         { ES1688_PCM_DEV, 0 },
1002         { ES1688_LINE_DEV, 0 },
1003         { ES1688_CD_DEV, 0 },
1004         { ES1688_FM_DEV, 0 },
1005         { ES1688_MIC_DEV, 0 },
1006         { ES1688_AUX_DEV, 0 },
1007         { ES1688_SPEAKER_DEV, 0 },
1008         { ES1688_RECLEV_DEV, 0 },
1009         { ES1688_REC_DEV, 0x17 }
1010 };
1011
1012 int snd_es1688_mixer(struct snd_es1688 *chip)
1013 {
1014         struct snd_card *card;
1015         unsigned int idx;
1016         int err;
1017         unsigned char reg, val;
1018
1019         if (snd_BUG_ON(!chip || !chip->card))
1020                 return -EINVAL;
1021
1022         card = chip->card;
1023
1024         strcpy(card->mixername, snd_es1688_chip_id(chip));
1025
1026         for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1027                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1028                         return err;
1029         }
1030         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1031                 reg = snd_es1688_init_table[idx][0];
1032                 val = snd_es1688_init_table[idx][1];
1033                 if (reg < 0xa0)
1034                         snd_es1688_mixer_write(chip, reg, val);
1035                 else
1036                         snd_es1688_write(chip, reg, val);
1037         }
1038         return 0;
1039 }
1040
1041 EXPORT_SYMBOL(snd_es1688_mixer_write);
1042 EXPORT_SYMBOL(snd_es1688_create);
1043 EXPORT_SYMBOL(snd_es1688_pcm);
1044 EXPORT_SYMBOL(snd_es1688_mixer);
1045
1046 /*
1047  *  INIT part
1048  */
1049
1050 static int __init alsa_es1688_init(void)
1051 {
1052         return 0;
1053 }
1054
1055 static void __exit alsa_es1688_exit(void)
1056 {
1057 }
1058
1059 module_init(alsa_es1688_init)
1060 module_exit(alsa_es1688_exit)