git.oblomov.eu Git - linux-2.6/blob - sound/isa/es1688/es1688_lib.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   3  *  Routines for control of ESS ES1688/688/488 chip
   4  *
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  */
  21
  22 #include <sound/driver.h>
  23 #include <linux/init.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/delay.h>
  26 #include <linux/slab.h>
  27 #include <linux/ioport.h>
  28 #include <sound/core.h>
  29 #include <sound/es1688.h>
  30 #include <sound/initval.h>
  31
  32 #include <asm/io.h>
  33 #include <asm/dma.h>
  34
  35 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  36 MODULE_DESCRIPTION("ESS ESx688 lowlevel module");
  37 MODULE_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("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 static 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
 120 static int snd_es1688_probe(struct snd_es1688 *chip)
 121 {
 122         unsigned long flags;
 123         unsigned short major, minor, hw;
 124         int i;
 125
 126         /*
 127          *  initialization sequence
 128          */
 129
 130         spin_lock_irqsave(&chip->reg_lock, flags);      /* Some ESS1688 cards need this */
 131         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 132         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 133         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 134         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 135         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 136         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 137         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 138         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 139         inb(ES1688P(chip, ENABLE2));    /* ENABLE2 */
 140         inb(ES1688P(chip, ENABLE1));    /* ENABLE1 */
 141         inb(ES1688P(chip, ENABLE0));    /* ENABLE0 */
 142
 143         if (snd_es1688_reset(chip) < 0) {
 144                 snd_printdd("ESS: [0x%lx] reset failed... 0x%x\n", chip->port, inb(ES1688P(chip, READ)));
 145                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 146                 return -ENODEV;
 147         }
 148         snd_es1688_dsp_command(chip, 0xe7);     /* return identification */
 149
 150         for (i = 1000, major = minor = 0; i; i--) {
 151                 if (inb(ES1688P(chip, DATA_AVAIL)) & 0x80) {
 152                         if (major == 0) {
 153                                 major = inb(ES1688P(chip, READ));
 154                         } else {
 155                                 minor = inb(ES1688P(chip, READ));
 156                         }
 157                 }
 158         }
 159
 160         spin_unlock_irqrestore(&chip->reg_lock, flags);
 161
 162         snd_printdd("ESS: [0x%lx] found.. major = 0x%x, minor = 0x%x\n", chip->port, major, minor);
 163
 164         chip->version = (major << 8) | minor;
 165         if (!chip->version)
 166                 return -ENODEV; /* probably SB */
 167
 168         hw = ES1688_HW_AUTO;
 169         switch (chip->version & 0xfff0) {
 170         case 0x4880:
 171                 snd_printk("[0x%lx] ESS: AudioDrive ES488 detected, 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("[0x%lx] ESS: unknown AudioDrive chip with version 0x%x (Jazz16 soundcard?)\n", chip->port, chip->version);
 178                 return -ENODEV;
 179         }
 180
 181         spin_lock_irqsave(&chip->reg_lock, flags);
 182         snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 183         snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 184         spin_unlock_irqrestore(&chip->reg_lock, flags);
 185
 186         /* enable joystick, but disable OPL3 */
 187         spin_lock_irqsave(&chip->mixer_lock, flags);
 188         snd_es1688_mixer_write(chip, 0x40, 0x01);
 189         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 190
 191         return 0;
 192 }
 193
 194 static int snd_es1688_init(struct snd_es1688 * chip, int enable)
 195 {
 196         static int irqs[16] = {-1, -1, 0, -1, -1, 1, -1, 2, -1, 0, 3, -1, -1, -1, -1, -1};
 197         unsigned long flags;
 198         int cfg, irq_bits, dma, dma_bits, tmp, tmp1;
 199
 200         /* ok.. setup MPU-401 port and joystick and OPL3 */
 201         cfg = 0x01;             /* enable joystick, but disable OPL3 */
 202         if (enable && chip->mpu_port >= 0x300 && chip->mpu_irq > 0 && chip->hardware != ES1688_HW_688) {
 203                 tmp = (chip->mpu_port & 0x0f0) >> 4;
 204                 if (tmp <= 3) {
 205                         switch (chip->mpu_irq) {
 206                         case 9:
 207                                 tmp1 = 4;
 208                                 break;
 209                         case 5:
 210                                 tmp1 = 5;
 211                                 break;
 212                         case 7:
 213                                 tmp1 = 6;
 214                                 break;
 215                         case 10:
 216                                 tmp1 = 7;
 217                                 break;
 218                         default:
 219                                 tmp1 = 0;
 220                         }
 221                         if (tmp1) {
 222                                 cfg |= (tmp << 3) | (tmp1 << 5);
 223                         }
 224                 }
 225         }
 226 #if 0
 227         snd_printk("mpu cfg = 0x%x\n", cfg);
 228 #endif
 229         spin_lock_irqsave(&chip->reg_lock, flags);
 230         snd_es1688_mixer_write(chip, 0x40, cfg);
 231         spin_unlock_irqrestore(&chip->reg_lock, flags);
 232         /* --- */
 233         spin_lock_irqsave(&chip->reg_lock, flags);
 234         snd_es1688_read(chip, 0xb1);
 235         snd_es1688_read(chip, 0xb2);
 236         spin_unlock_irqrestore(&chip->reg_lock, flags);
 237         if (enable) {
 238                 cfg = 0xf0;     /* enable only DMA counter interrupt */
 239                 irq_bits = irqs[chip->irq & 0x0f];
 240                 if (irq_bits < 0) {
 241                         snd_printk("[0x%lx] ESS: bad IRQ %d for ES1688 chip!!\n", chip->port, chip->irq);
 242 #if 0
 243                         irq_bits = 0;
 244                         cfg = 0x10;
 245 #endif
 246                         return -EINVAL;
 247                 }
 248                 spin_lock_irqsave(&chip->reg_lock, flags);
 249                 snd_es1688_write(chip, 0xb1, cfg | (irq_bits << 2));
 250                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 251                 cfg = 0xf0;     /* extended mode DMA enable */
 252                 dma = chip->dma8;
 253                 if (dma > 3 || dma == 2) {
 254                         snd_printk("[0x%lx] ESS: bad DMA channel %d for ES1688 chip!!\n", chip->port, dma);
 255 #if 0
 256                         dma_bits = 0;
 257                         cfg = 0x00;     /* disable all DMA */
 258 #endif
 259                         return -EINVAL;
 260                 } else {
 261                         dma_bits = dma;
 262                         if (dma != 3)
 263                                 dma_bits++;
 264                 }
 265                 spin_lock_irqsave(&chip->reg_lock, flags);
 266                 snd_es1688_write(chip, 0xb2, cfg | (dma_bits << 2));
 267                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 268         } else {
 269                 spin_lock_irqsave(&chip->reg_lock, flags);
 270                 snd_es1688_write(chip, 0xb1, 0x10);     /* disable IRQ */
 271                 snd_es1688_write(chip, 0xb2, 0x00);     /* disable DMA */
 272                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 273         }
 274         spin_lock_irqsave(&chip->reg_lock, flags);
 275         snd_es1688_read(chip, 0xb1);
 276         snd_es1688_read(chip, 0xb2);
 277         snd_es1688_reset(chip);
 278         spin_unlock_irqrestore(&chip->reg_lock, flags);
 279         return 0;
 280 }
 281
 282 /*
 283
 284  */
 285
 286 static struct snd_ratnum clocks[2] = {
 287         {
 288                 .num = 795444,
 289                 .den_min = 1,
 290                 .den_max = 128,
 291                 .den_step = 1,
 292         },
 293         {
 294                 .num = 397722,
 295                 .den_min = 1,
 296                 .den_max = 128,
 297                 .den_step = 1,
 298         }
 299 };
 300
 301 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks  = {
 302         .nrats = 2,
 303         .rats = clocks,
 304 };
 305
 306 static void snd_es1688_set_rate(struct snd_es1688 *chip, struct snd_pcm_substream *substream)
 307 {
 308         struct snd_pcm_runtime *runtime = substream->runtime;
 309         unsigned int bits, divider;
 310
 311         if (runtime->rate_num == clocks[0].num)
 312                 bits = 256 - runtime->rate_den;
 313         else
 314                 bits = 128 - runtime->rate_den;
 315         /* set filter register */
 316         divider = 256 - 7160000*20/(8*82*runtime->rate);
 317         /* write result to hardware */
 318         snd_es1688_write(chip, 0xa1, bits);
 319         snd_es1688_write(chip, 0xa2, divider);
 320 }
 321
 322 static int snd_es1688_ioctl(struct snd_pcm_substream *substream,
 323                             unsigned int cmd, void *arg)
 324 {
 325         return snd_pcm_lib_ioctl(substream, cmd, arg);
 326 }
 327
 328 static int snd_es1688_trigger(struct snd_es1688 *chip, int cmd, unsigned char value)
 329 {
 330         int val;
 331
 332         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 333                 value = 0x00;
 334         } else if (cmd != SNDRV_PCM_TRIGGER_START) {
 335                 return -EINVAL;
 336         }
 337         spin_lock(&chip->reg_lock);
 338         chip->trigger_value = value;
 339         val = snd_es1688_read(chip, 0xb8);
 340         if ((val < 0) || (val & 0x0f) == value) {
 341                 spin_unlock(&chip->reg_lock);
 342                 return -EINVAL; /* something is wrong */
 343         }
 344 #if 0
 345         printk("trigger: val = 0x%x, value = 0x%x\n", val, value);
 346         printk("trigger: pointer = 0x%x\n", snd_dma_pointer(chip->dma8, chip->dma_size));
 347 #endif
 348         snd_es1688_write(chip, 0xb8, (val & 0xf0) | value);
 349         spin_unlock(&chip->reg_lock);
 350         return 0;
 351 }
 352
 353 static int snd_es1688_hw_params(struct snd_pcm_substream *substream,
 354                                 struct snd_pcm_hw_params *hw_params)
 355 {
 356         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 357 }
 358
 359 static int snd_es1688_hw_free(struct snd_pcm_substream *substream)
 360 {
 361         return snd_pcm_lib_free_pages(substream);
 362 }
 363
 364 static int snd_es1688_playback_prepare(struct snd_pcm_substream *substream)
 365 {
 366         unsigned long flags;
 367         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 368         struct snd_pcm_runtime *runtime = substream->runtime;
 369         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 370         unsigned int count = snd_pcm_lib_period_bytes(substream);
 371
 372         chip->dma_size = size;
 373         spin_lock_irqsave(&chip->reg_lock, flags);
 374         snd_es1688_reset(chip);
 375         snd_es1688_set_rate(chip, substream);
 376         snd_es1688_write(chip, 0xb8, 4);        /* auto init DMA mode */
 377         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 378         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 379         if (runtime->channels == 1) {
 380                 if (snd_pcm_format_width(runtime->format) == 8) {
 381                         /* 8. bit mono */
 382                         snd_es1688_write(chip, 0xb6, 0x80);
 383                         snd_es1688_write(chip, 0xb7, 0x51);
 384                         snd_es1688_write(chip, 0xb7, 0xd0);
 385                 } else {
 386                         /* 16. bit mono */
 387                         snd_es1688_write(chip, 0xb6, 0x00);
 388                         snd_es1688_write(chip, 0xb7, 0x71);
 389                         snd_es1688_write(chip, 0xb7, 0xf4);
 390                 }
 391         } else {
 392                 if (snd_pcm_format_width(runtime->format) == 8) {
 393                         /* 8. bit stereo */
 394                         snd_es1688_write(chip, 0xb6, 0x80);
 395                         snd_es1688_write(chip, 0xb7, 0x51);
 396                         snd_es1688_write(chip, 0xb7, 0x98);
 397                 } else {
 398                         /* 16. bit stereo */
 399                         snd_es1688_write(chip, 0xb6, 0x00);
 400                         snd_es1688_write(chip, 0xb7, 0x71);
 401                         snd_es1688_write(chip, 0xb7, 0xbc);
 402                 }
 403         }
 404         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 405         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 406         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
 407         spin_unlock_irqrestore(&chip->reg_lock, flags);
 408         /* --- */
 409         count = -count;
 410         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 411         spin_lock_irqsave(&chip->reg_lock, flags);
 412         snd_es1688_write(chip, 0xa4, (unsigned char) count);
 413         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 414         spin_unlock_irqrestore(&chip->reg_lock, flags);
 415         return 0;
 416 }
 417
 418 static int snd_es1688_playback_trigger(struct snd_pcm_substream *substream,
 419                                        int cmd)
 420 {
 421         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 422         return snd_es1688_trigger(chip, cmd, 0x05);
 423 }
 424
 425 static int snd_es1688_capture_prepare(struct snd_pcm_substream *substream)
 426 {
 427         unsigned long flags;
 428         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 429         struct snd_pcm_runtime *runtime = substream->runtime;
 430         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 431         unsigned int count = snd_pcm_lib_period_bytes(substream);
 432
 433         chip->dma_size = size;
 434         spin_lock_irqsave(&chip->reg_lock, flags);
 435         snd_es1688_reset(chip);
 436         snd_es1688_set_rate(chip, substream);
 437         snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
 438         snd_es1688_write(chip, 0xb8, 0x0e);     /* auto init DMA mode */
 439         snd_es1688_write(chip, 0xa8, (snd_es1688_read(chip, 0xa8) & ~0x03) | (3 - runtime->channels));
 440         snd_es1688_write(chip, 0xb9, 2);        /* demand mode (4 bytes/request) */
 441         if (runtime->channels == 1) {
 442                 if (snd_pcm_format_width(runtime->format) == 8) {
 443                         /* 8. bit mono */
 444                         snd_es1688_write(chip, 0xb7, 0x51);
 445                         snd_es1688_write(chip, 0xb7, 0xd0);
 446                 } else {
 447                         /* 16. bit mono */
 448                         snd_es1688_write(chip, 0xb7, 0x71);
 449                         snd_es1688_write(chip, 0xb7, 0xf4);
 450                 }
 451         } else {
 452                 if (snd_pcm_format_width(runtime->format) == 8) {
 453                         /* 8. bit stereo */
 454                         snd_es1688_write(chip, 0xb7, 0x51);
 455                         snd_es1688_write(chip, 0xb7, 0x98);
 456                 } else {
 457                         /* 16. bit stereo */
 458                         snd_es1688_write(chip, 0xb7, 0x71);
 459                         snd_es1688_write(chip, 0xb7, 0xbc);
 460                 }
 461         }
 462         snd_es1688_write(chip, 0xb1, (snd_es1688_read(chip, 0xb1) & 0x0f) | 0x50);
 463         snd_es1688_write(chip, 0xb2, (snd_es1688_read(chip, 0xb2) & 0x0f) | 0x50);
 464         spin_unlock_irqrestore(&chip->reg_lock, flags);
 465         /* --- */
 466         count = -count;
 467         snd_dma_program(chip->dma8, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 468         spin_lock_irqsave(&chip->reg_lock, flags);
 469         snd_es1688_write(chip, 0xa4, (unsigned char) count);
 470         snd_es1688_write(chip, 0xa5, (unsigned char) (count >> 8));
 471         spin_unlock_irqrestore(&chip->reg_lock, flags);
 472         return 0;
 473 }
 474
 475 static int snd_es1688_capture_trigger(struct snd_pcm_substream *substream,
 476                                       int cmd)
 477 {
 478         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 479         return snd_es1688_trigger(chip, cmd, 0x0f);
 480 }
 481
 482 static irqreturn_t snd_es1688_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 483 {
 484         struct snd_es1688 *chip = dev_id;
 485
 486         if (chip->trigger_value == 0x05)        /* ok.. playback is active */
 487                 snd_pcm_period_elapsed(chip->playback_substream);
 488         if (chip->trigger_value == 0x0f)        /* ok.. capture is active */
 489                 snd_pcm_period_elapsed(chip->capture_substream);
 490
 491         inb(ES1688P(chip, DATA_AVAIL)); /* ack interrupt */
 492         return IRQ_HANDLED;
 493 }
 494
 495 static snd_pcm_uframes_t snd_es1688_playback_pointer(struct snd_pcm_substream *substream)
 496 {
 497         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 498         size_t ptr;
 499
 500         if (chip->trigger_value != 0x05)
 501                 return 0;
 502         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 503         return bytes_to_frames(substream->runtime, ptr);
 504 }
 505
 506 static snd_pcm_uframes_t snd_es1688_capture_pointer(struct snd_pcm_substream *substream)
 507 {
 508         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 509         size_t ptr;
 510
 511         if (chip->trigger_value != 0x0f)
 512                 return 0;
 513         ptr = snd_dma_pointer(chip->dma8, chip->dma_size);
 514         return bytes_to_frames(substream->runtime, ptr);
 515 }
 516
 517 /*
 518
 519  */
 520
 521 static struct snd_pcm_hardware snd_es1688_playback =
 522 {
 523         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 524                                  SNDRV_PCM_INFO_MMAP_VALID),
 525         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 526         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 527         .rate_min =             4000,
 528         .rate_max =             48000,
 529         .channels_min =         1,
 530         .channels_max =         2,
 531         .buffer_bytes_max =     65536,
 532         .period_bytes_min =     64,
 533         .period_bytes_max =     65536,
 534         .periods_min =          1,
 535         .periods_max =          1024,
 536         .fifo_size =            0,
 537 };
 538
 539 static struct snd_pcm_hardware snd_es1688_capture =
 540 {
 541         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 542                                  SNDRV_PCM_INFO_MMAP_VALID),
 543         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 544         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 545         .rate_min =             4000,
 546         .rate_max =             48000,
 547         .channels_min =         1,
 548         .channels_max =         2,
 549         .buffer_bytes_max =     65536,
 550         .period_bytes_min =     64,
 551         .period_bytes_max =     65536,
 552         .periods_min =          1,
 553         .periods_max =          1024,
 554         .fifo_size =            0,
 555 };
 556
 557 /*
 558
 559  */
 560
 561 static int snd_es1688_playback_open(struct snd_pcm_substream *substream)
 562 {
 563         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 564         struct snd_pcm_runtime *runtime = substream->runtime;
 565
 566         if (chip->capture_substream != NULL)
 567                 return -EAGAIN;
 568         chip->playback_substream = substream;
 569         runtime->hw = snd_es1688_playback;
 570         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 571                                       &hw_constraints_clocks);
 572         return 0;
 573 }
 574
 575 static int snd_es1688_capture_open(struct snd_pcm_substream *substream)
 576 {
 577         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 578         struct snd_pcm_runtime *runtime = substream->runtime;
 579
 580         if (chip->playback_substream != NULL)
 581                 return -EAGAIN;
 582         chip->capture_substream = substream;
 583         runtime->hw = snd_es1688_capture;
 584         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 585                                       &hw_constraints_clocks);
 586         return 0;
 587 }
 588
 589 static int snd_es1688_playback_close(struct snd_pcm_substream *substream)
 590 {
 591         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 592
 593         chip->playback_substream = NULL;
 594         return 0;
 595 }
 596
 597 static int snd_es1688_capture_close(struct snd_pcm_substream *substream)
 598 {
 599         struct snd_es1688 *chip = snd_pcm_substream_chip(substream);
 600
 601         chip->capture_substream = NULL;
 602         return 0;
 603 }
 604
 605 static int snd_es1688_free(struct snd_es1688 *chip)
 606 {
 607         if (chip->res_port) {
 608                 snd_es1688_init(chip, 0);
 609                 release_and_free_resource(chip->res_port);
 610         }
 611         if (chip->irq >= 0)
 612                 free_irq(chip->irq, (void *) chip);
 613         if (chip->dma8 >= 0) {
 614                 disable_dma(chip->dma8);
 615                 free_dma(chip->dma8);
 616         }
 617         kfree(chip);
 618         return 0;
 619 }
 620
 621 static int snd_es1688_dev_free(struct snd_device *device)
 622 {
 623         struct snd_es1688 *chip = device->device_data;
 624         return snd_es1688_free(chip);
 625 }
 626
 627 static const char *snd_es1688_chip_id(struct snd_es1688 *chip)
 628 {
 629         static char tmp[16];
 630         sprintf(tmp, "ES%s688 rev %i", chip->hardware == ES1688_HW_688 ? "" : "1", chip->version & 0x0f);
 631         return tmp;
 632 }
 633
 634 int snd_es1688_create(struct snd_card *card,
 635                       unsigned long port,
 636                       unsigned long mpu_port,
 637                       int irq,
 638                       int mpu_irq,
 639                       int dma8,
 640                       unsigned short hardware,
 641                       struct snd_es1688 **rchip)
 642 {
 643         static struct snd_device_ops ops = {
 644                 .dev_free =     snd_es1688_dev_free,
 645         };
 646
 647         struct snd_es1688 *chip;
 648         int err;
 649
 650         *rchip = NULL;
 651         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 652         if (chip == NULL)
 653                 return -ENOMEM;
 654         chip->irq = -1;
 655         chip->dma8 = -1;
 656
 657         if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) {
 658                 snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4);
 659                 snd_es1688_free(chip);
 660                 return -EBUSY;
 661         }
 662         if (request_irq(irq, snd_es1688_interrupt, IRQF_DISABLED, "ES1688", (void *) chip)) {
 663                 snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq);
 664                 snd_es1688_free(chip);
 665                 return -EBUSY;
 666         }
 667         chip->irq = irq;
 668         if (request_dma(dma8, "ES1688")) {
 669                 snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8);
 670                 snd_es1688_free(chip);
 671                 return -EBUSY;
 672         }
 673         chip->dma8 = dma8;
 674
 675         spin_lock_init(&chip->reg_lock);
 676         spin_lock_init(&chip->mixer_lock);
 677         chip->card = card;
 678         chip->port = port;
 679         mpu_port &= ~0x000f;
 680         if (mpu_port < 0x300 || mpu_port > 0x330)
 681                 mpu_port = 0;
 682         chip->mpu_port = mpu_port;
 683         chip->mpu_irq = mpu_irq;
 684         chip->hardware = hardware;
 685
 686         if ((err = snd_es1688_probe(chip)) < 0) {
 687                 snd_es1688_free(chip);
 688                 return err;
 689         }
 690         if ((err = snd_es1688_init(chip, 1)) < 0) {
 691                 snd_es1688_free(chip);
 692                 return err;
 693         }
 694
 695         /* Register device */
 696         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 697                 snd_es1688_free(chip);
 698                 return err;
 699         }
 700
 701         *rchip = chip;
 702         return 0;
 703 }
 704
 705 static struct snd_pcm_ops snd_es1688_playback_ops = {
 706         .open =                 snd_es1688_playback_open,
 707         .close =                snd_es1688_playback_close,
 708         .ioctl =                snd_es1688_ioctl,
 709         .hw_params =            snd_es1688_hw_params,
 710         .hw_free =              snd_es1688_hw_free,
 711         .prepare =              snd_es1688_playback_prepare,
 712         .trigger =              snd_es1688_playback_trigger,
 713         .pointer =              snd_es1688_playback_pointer,
 714 };
 715
 716 static struct snd_pcm_ops snd_es1688_capture_ops = {
 717         .open =                 snd_es1688_capture_open,
 718         .close =                snd_es1688_capture_close,
 719         .ioctl =                snd_es1688_ioctl,
 720         .hw_params =            snd_es1688_hw_params,
 721         .hw_free =              snd_es1688_hw_free,
 722         .prepare =              snd_es1688_capture_prepare,
 723         .trigger =              snd_es1688_capture_trigger,
 724         .pointer =              snd_es1688_capture_pointer,
 725 };
 726
 727 int snd_es1688_pcm(struct snd_es1688 * chip, int device, struct snd_pcm ** rpcm)
 728 {
 729         struct snd_pcm *pcm;
 730         int err;
 731
 732         if ((err = snd_pcm_new(chip->card, "ESx688", device, 1, 1, &pcm)) < 0)
 733                 return err;
 734
 735         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1688_playback_ops);
 736         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1688_capture_ops);
 737
 738         pcm->private_data = chip;
 739         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
 740         sprintf(pcm->name, snd_es1688_chip_id(chip));
 741         chip->pcm = pcm;
 742
 743         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 744                                               snd_dma_isa_data(),
 745                                               64*1024, 64*1024);
 746
 747         if (rpcm)
 748                 *rpcm = pcm;
 749         return 0;
 750 }
 751
 752 /*
 753  *  MIXER part
 754  */
 755
 756 static int snd_es1688_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 757 {
 758         static char *texts[9] = {
 759                 "Mic", "Mic Master", "CD", "AOUT",
 760                 "Mic1", "Mix", "Line", "Master"
 761         };
 762
 763         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 764         uinfo->count = 1;
 765         uinfo->value.enumerated.items = 8;
 766         if (uinfo->value.enumerated.item > 7)
 767                 uinfo->value.enumerated.item = 7;
 768         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 769         return 0;
 770 }
 771
 772 static int snd_es1688_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 773 {
 774         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 775         ucontrol->value.enumerated.item[0] = snd_es1688_mixer_read(chip, ES1688_REC_DEV) & 7;
 776         return 0;
 777 }
 778
 779 static int snd_es1688_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 780 {
 781         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 782         unsigned long flags;
 783         unsigned char oval, nval;
 784         int change;
 785
 786         if (ucontrol->value.enumerated.item[0] > 8)
 787                 return -EINVAL;
 788         spin_lock_irqsave(&chip->reg_lock, flags);
 789         oval = snd_es1688_mixer_read(chip, ES1688_REC_DEV);
 790         nval = (ucontrol->value.enumerated.item[0] & 7) | (oval & ~15);
 791         change = nval != oval;
 792         if (change)
 793                 snd_es1688_mixer_write(chip, ES1688_REC_DEV, nval);
 794         spin_unlock_irqrestore(&chip->reg_lock, flags);
 795         return change;
 796 }
 797
 798 #define ES1688_SINGLE(xname, xindex, reg, shift, mask, invert) \
 799 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 800   .info = snd_es1688_info_single, \
 801   .get = snd_es1688_get_single, .put = snd_es1688_put_single, \
 802   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
 803
 804 static int snd_es1688_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 805 {
 806         int mask = (kcontrol->private_value >> 16) & 0xff;
 807
 808         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 809         uinfo->count = 1;
 810         uinfo->value.integer.min = 0;
 811         uinfo->value.integer.max = mask;
 812         return 0;
 813 }
 814
 815 static int snd_es1688_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 816 {
 817         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 818         unsigned long flags;
 819         int reg = kcontrol->private_value & 0xff;
 820         int shift = (kcontrol->private_value >> 8) & 0xff;
 821         int mask = (kcontrol->private_value >> 16) & 0xff;
 822         int invert = (kcontrol->private_value >> 24) & 0xff;
 823
 824         spin_lock_irqsave(&chip->reg_lock, flags);
 825         ucontrol->value.integer.value[0] = (snd_es1688_mixer_read(chip, reg) >> shift) & mask;
 826         spin_unlock_irqrestore(&chip->reg_lock, flags);
 827         if (invert)
 828                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 829         return 0;
 830 }
 831
 832 static int snd_es1688_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 833 {
 834         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 835         unsigned long flags;
 836         int reg = kcontrol->private_value & 0xff;
 837         int shift = (kcontrol->private_value >> 8) & 0xff;
 838         int mask = (kcontrol->private_value >> 16) & 0xff;
 839         int invert = (kcontrol->private_value >> 24) & 0xff;
 840         int change;
 841         unsigned char oval, nval;
 842
 843         nval = (ucontrol->value.integer.value[0] & mask);
 844         if (invert)
 845                 nval = mask - nval;
 846         nval <<= shift;
 847         spin_lock_irqsave(&chip->reg_lock, flags);
 848         oval = snd_es1688_mixer_read(chip, reg);
 849         nval = (oval & ~(mask << shift)) | nval;
 850         change = nval != oval;
 851         if (change)
 852                 snd_es1688_mixer_write(chip, reg, nval);
 853         spin_unlock_irqrestore(&chip->reg_lock, flags);
 854         return change;
 855 }
 856
 857 #define ES1688_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
 858 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 859   .info = snd_es1688_info_double, \
 860   .get = snd_es1688_get_double, .put = snd_es1688_put_double, \
 861   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
 862
 863 static int snd_es1688_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 864 {
 865         int mask = (kcontrol->private_value >> 24) & 0xff;
 866
 867         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 868         uinfo->count = 2;
 869         uinfo->value.integer.min = 0;
 870         uinfo->value.integer.max = mask;
 871         return 0;
 872 }
 873
 874 static int snd_es1688_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 875 {
 876         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 877         unsigned long flags;
 878         int left_reg = kcontrol->private_value & 0xff;
 879         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 880         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 881         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 882         int mask = (kcontrol->private_value >> 24) & 0xff;
 883         int invert = (kcontrol->private_value >> 22) & 1;
 884         unsigned char left, right;
 885
 886         spin_lock_irqsave(&chip->reg_lock, flags);
 887         if (left_reg < 0xa0)
 888                 left = snd_es1688_mixer_read(chip, left_reg);
 889         else
 890                 left = snd_es1688_read(chip, left_reg);
 891         if (left_reg != right_reg) {
 892                 if (right_reg < 0xa0)
 893                         right = snd_es1688_mixer_read(chip, right_reg);
 894                 else
 895                         right = snd_es1688_read(chip, right_reg);
 896         } else
 897                 right = left;
 898         spin_unlock_irqrestore(&chip->reg_lock, flags);
 899         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
 900         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
 901         if (invert) {
 902                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 903                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 904         }
 905         return 0;
 906 }
 907
 908 static int snd_es1688_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 909 {
 910         struct snd_es1688 *chip = snd_kcontrol_chip(kcontrol);
 911         unsigned long flags;
 912         int left_reg = kcontrol->private_value & 0xff;
 913         int right_reg = (kcontrol->private_value >> 8) & 0xff;
 914         int shift_left = (kcontrol->private_value >> 16) & 0x07;
 915         int shift_right = (kcontrol->private_value >> 19) & 0x07;
 916         int mask = (kcontrol->private_value >> 24) & 0xff;
 917         int invert = (kcontrol->private_value >> 22) & 1;
 918         int change;
 919         unsigned char val1, val2, oval1, oval2;
 920
 921         val1 = ucontrol->value.integer.value[0] & mask;
 922         val2 = ucontrol->value.integer.value[1] & mask;
 923         if (invert) {
 924                 val1 = mask - val1;
 925                 val2 = mask - val2;
 926         }
 927         val1 <<= shift_left;
 928         val2 <<= shift_right;
 929         spin_lock_irqsave(&chip->reg_lock, flags);
 930         if (left_reg != right_reg) {
 931                 if (left_reg < 0xa0)
 932                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 933                 else
 934                         oval1 = snd_es1688_read(chip, left_reg);
 935                 if (right_reg < 0xa0)
 936                         oval2 = snd_es1688_mixer_read(chip, right_reg);
 937                 else
 938                         oval2 = snd_es1688_read(chip, right_reg);
 939                 val1 = (oval1 & ~(mask << shift_left)) | val1;
 940                 val2 = (oval2 & ~(mask << shift_right)) | val2;
 941                 change = val1 != oval1 || val2 != oval2;
 942                 if (change) {
 943                         if (left_reg < 0xa0)
 944                                 snd_es1688_mixer_write(chip, left_reg, val1);
 945                         else
 946                                 snd_es1688_write(chip, left_reg, val1);
 947                         if (right_reg < 0xa0)
 948                                 snd_es1688_mixer_write(chip, right_reg, val1);
 949                         else
 950                                 snd_es1688_write(chip, right_reg, val1);
 951                 }
 952         } else {
 953                 if (left_reg < 0xa0)
 954                         oval1 = snd_es1688_mixer_read(chip, left_reg);
 955                 else
 956                         oval1 = snd_es1688_read(chip, left_reg);
 957                 val1 = (oval1 & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
 958                 change = val1 != oval1;
 959                 if (change) {
 960                         if (left_reg < 0xa0)
 961                                 snd_es1688_mixer_write(chip, left_reg, val1);
 962                         else
 963                                 snd_es1688_write(chip, left_reg, val1);
 964                 }
 965
 966         }
 967         spin_unlock_irqrestore(&chip->reg_lock, flags);
 968         return change;
 969 }
 970
 971 static struct snd_kcontrol_new snd_es1688_controls[] = {
 972 ES1688_DOUBLE("Master Playback Volume", 0, ES1688_MASTER_DEV, ES1688_MASTER_DEV, 4, 0, 15, 0),
 973 ES1688_DOUBLE("PCM Playback Volume", 0, ES1688_PCM_DEV, ES1688_PCM_DEV, 4, 0, 15, 0),
 974 ES1688_DOUBLE("Line Playback Volume", 0, ES1688_LINE_DEV, ES1688_LINE_DEV, 4, 0, 15, 0),
 975 ES1688_DOUBLE("CD Playback Volume", 0, ES1688_CD_DEV, ES1688_CD_DEV, 4, 0, 15, 0),
 976 ES1688_DOUBLE("FM Playback Volume", 0, ES1688_FM_DEV, ES1688_FM_DEV, 4, 0, 15, 0),
 977 ES1688_DOUBLE("Mic Playback Volume", 0, ES1688_MIC_DEV, ES1688_MIC_DEV, 4, 0, 15, 0),
 978 ES1688_DOUBLE("Aux Playback Volume", 0, ES1688_AUX_DEV, ES1688_AUX_DEV, 4, 0, 15, 0),
 979 ES1688_SINGLE("PC Speaker Playback Volume", 0, ES1688_SPEAKER_DEV, 0, 7, 0),
 980 ES1688_DOUBLE("Capture Volume", 0, ES1688_RECLEV_DEV, ES1688_RECLEV_DEV, 4, 0, 15, 0),
 981 ES1688_SINGLE("Capture Switch", 0, ES1688_REC_DEV, 4, 1, 1),
 982 {
 983         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 984         .name = "Capture Source",
 985         .info = snd_es1688_info_mux,
 986         .get = snd_es1688_get_mux,
 987         .put = snd_es1688_put_mux,
 988 },
 989 };
 990
 991 #define ES1688_INIT_TABLE_SIZE (sizeof(snd_es1688_init_table)/2)
 992
 993 static unsigned char snd_es1688_init_table[][2] = {
 994         { ES1688_MASTER_DEV, 0 },
 995         { ES1688_PCM_DEV, 0 },
 996         { ES1688_LINE_DEV, 0 },
 997         { ES1688_CD_DEV, 0 },
 998         { ES1688_FM_DEV, 0 },
 999         { ES1688_MIC_DEV, 0 },
1000         { ES1688_AUX_DEV, 0 },
1001         { ES1688_SPEAKER_DEV, 0 },
1002         { ES1688_RECLEV_DEV, 0 },
1003         { ES1688_REC_DEV, 0x17 }
1004 };
1005
1006 int snd_es1688_mixer(struct snd_es1688 *chip)
1007 {
1008         struct snd_card *card;
1009         unsigned int idx;
1010         int err;
1011         unsigned char reg, val;
1012
1013         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
1014
1015         card = chip->card;
1016
1017         strcpy(card->mixername, snd_es1688_chip_id(chip));
1018
1019         for (idx = 0; idx < ARRAY_SIZE(snd_es1688_controls); idx++) {
1020                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_es1688_controls[idx], chip))) < 0)
1021                         return err;
1022         }
1023         for (idx = 0; idx < ES1688_INIT_TABLE_SIZE; idx++) {
1024                 reg = snd_es1688_init_table[idx][0];
1025                 val = snd_es1688_init_table[idx][1];
1026                 if (reg < 0xa0)
1027                         snd_es1688_mixer_write(chip, reg, val);
1028                 else
1029                         snd_es1688_write(chip, reg, val);
1030         }
1031         return 0;
1032 }
1033
1034 EXPORT_SYMBOL(snd_es1688_mixer_write);
1035 EXPORT_SYMBOL(snd_es1688_create);
1036 EXPORT_SYMBOL(snd_es1688_pcm);
1037 EXPORT_SYMBOL(snd_es1688_mixer);
1038
1039 /*
1040  *  INIT part
1041  */
1042
1043 static int __init alsa_es1688_init(void)
1044 {
1045         return 0;
1046 }
1047
1048 static void __exit alsa_es1688_exit(void)
1049 {
1050 }
1051
1052 module_init(alsa_es1688_init)
1053 module_exit(alsa_es1688_exit)