git.oblomov.eu Git - linux-2.6/blob - sound/isa/ad1848/ad1848_lib.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   3  *  Routines for control of AD1848/AD1847/CS4248
   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 #define SNDRV_MAIN_OBJECT_FILE
  23 #include <sound/driver.h>
  24 #include <linux/delay.h>
  25 #include <linux/init.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/slab.h>
  28 #include <linux/ioport.h>
  29 #include <sound/core.h>
  30 #include <sound/ad1848.h>
  31 #include <sound/control.h>
  32 #include <sound/tlv.h>
  33 #include <sound/pcm_params.h>
  34
  35 #include <asm/io.h>
  36 #include <asm/dma.h>
  37
  38 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  39 MODULE_DESCRIPTION("Routines for control of AD1848/AD1847/CS4248");
  40 MODULE_LICENSE("GPL");
  41
  42 #if 0
  43 #define SNDRV_DEBUG_MCE
  44 #endif
  45
  46 /*
  47  *  Some variables
  48  */
  49
  50 static unsigned char freq_bits[14] = {
  51         /* 5510 */      0x00 | AD1848_XTAL2,
  52         /* 6620 */      0x0E | AD1848_XTAL2,
  53         /* 8000 */      0x00 | AD1848_XTAL1,
  54         /* 9600 */      0x0E | AD1848_XTAL1,
  55         /* 11025 */     0x02 | AD1848_XTAL2,
  56         /* 16000 */     0x02 | AD1848_XTAL1,
  57         /* 18900 */     0x04 | AD1848_XTAL2,
  58         /* 22050 */     0x06 | AD1848_XTAL2,
  59         /* 27042 */     0x04 | AD1848_XTAL1,
  60         /* 32000 */     0x06 | AD1848_XTAL1,
  61         /* 33075 */     0x0C | AD1848_XTAL2,
  62         /* 37800 */     0x08 | AD1848_XTAL2,
  63         /* 44100 */     0x0A | AD1848_XTAL2,
  64         /* 48000 */     0x0C | AD1848_XTAL1
  65 };
  66
  67 static unsigned int rates[14] = {
  68         5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
  69         27042, 32000, 33075, 37800, 44100, 48000
  70 };
  71
  72 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
  73         .count = ARRAY_SIZE(rates),
  74         .list = rates,
  75         .mask = 0,
  76 };
  77
  78 static unsigned char snd_ad1848_original_image[16] =
  79 {
  80         0x00,                   /* 00 - lic */
  81         0x00,                   /* 01 - ric */
  82         0x9f,                   /* 02 - la1ic */
  83         0x9f,                   /* 03 - ra1ic */
  84         0x9f,                   /* 04 - la2ic */
  85         0x9f,                   /* 05 - ra2ic */
  86         0xbf,                   /* 06 - loc */
  87         0xbf,                   /* 07 - roc */
  88         0x20,                   /* 08 - dfr */
  89         AD1848_AUTOCALIB,       /* 09 - ic */
  90         0x00,                   /* 0a - pc */
  91         0x00,                   /* 0b - ti */
  92         0x00,                   /* 0c - mi */
  93         0x00,                   /* 0d - lbc */
  94         0x00,                   /* 0e - dru */
  95         0x00,                   /* 0f - drl */
  96 };
  97
  98 /*
  99  *  Basic I/O functions
 100  */
 101
 102 static void snd_ad1848_wait(struct snd_ad1848 *chip)
 103 {
 104         int timeout;
 105
 106         for (timeout = 250; timeout > 0; timeout--) {
 107                 if ((inb(AD1848P(chip, REGSEL)) & AD1848_INIT) == 0)
 108                         break;
 109                 udelay(100);
 110         }
 111 }
 112
 113 void snd_ad1848_out(struct snd_ad1848 *chip,
 114                            unsigned char reg,
 115                            unsigned char value)
 116 {
 117         snd_ad1848_wait(chip);
 118 #ifdef CONFIG_SND_DEBUG
 119         if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
 120                 snd_printk(KERN_WARNING "auto calibration time out - "
 121                            "reg = 0x%x, value = 0x%x\n", reg, value);
 122 #endif
 123         outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
 124         outb(chip->image[reg] = value, AD1848P(chip, REG));
 125         mb();
 126         snd_printdd("codec out - reg 0x%x = 0x%x\n",
 127                         chip->mce_bit | reg, value);
 128 }
 129
 130 EXPORT_SYMBOL(snd_ad1848_out);
 131
 132 static void snd_ad1848_dout(struct snd_ad1848 *chip,
 133                             unsigned char reg, unsigned char value)
 134 {
 135         snd_ad1848_wait(chip);
 136         outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
 137         outb(value, AD1848P(chip, REG));
 138         mb();
 139 }
 140
 141 static unsigned char snd_ad1848_in(struct snd_ad1848 *chip, unsigned char reg)
 142 {
 143         snd_ad1848_wait(chip);
 144 #ifdef CONFIG_SND_DEBUG
 145         if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
 146                 snd_printk(KERN_WARNING "auto calibration time out - "
 147                            "reg = 0x%x\n", reg);
 148 #endif
 149         outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
 150         mb();
 151         return inb(AD1848P(chip, REG));
 152 }
 153
 154 #if 0
 155
 156 static void snd_ad1848_debug(struct snd_ad1848 *chip)
 157 {
 158         printk("AD1848 REGS:      INDEX = 0x%02x  ", inb(AD1848P(chip, REGSEL)));
 159         printk("                 STATUS = 0x%02x\n", inb(AD1848P(chip, STATUS)));
 160         printk("  0x00: left input      = 0x%02x  ", snd_ad1848_in(chip, 0x00));
 161         printk("  0x08: playback format = 0x%02x\n", snd_ad1848_in(chip, 0x08));
 162         printk("  0x01: right input     = 0x%02x  ", snd_ad1848_in(chip, 0x01));
 163         printk("  0x09: iface (CFIG 1)  = 0x%02x\n", snd_ad1848_in(chip, 0x09));
 164         printk("  0x02: AUXA left       = 0x%02x  ", snd_ad1848_in(chip, 0x02));
 165         printk("  0x0a: pin control     = 0x%02x\n", snd_ad1848_in(chip, 0x0a));
 166         printk("  0x03: AUXA right      = 0x%02x  ", snd_ad1848_in(chip, 0x03));
 167         printk("  0x0b: init & status   = 0x%02x\n", snd_ad1848_in(chip, 0x0b));
 168         printk("  0x04: AUXB left       = 0x%02x  ", snd_ad1848_in(chip, 0x04));
 169         printk("  0x0c: revision & mode = 0x%02x\n", snd_ad1848_in(chip, 0x0c));
 170         printk("  0x05: AUXB right      = 0x%02x  ", snd_ad1848_in(chip, 0x05));
 171         printk("  0x0d: loopback        = 0x%02x\n", snd_ad1848_in(chip, 0x0d));
 172         printk("  0x06: left output     = 0x%02x  ", snd_ad1848_in(chip, 0x06));
 173         printk("  0x0e: data upr count  = 0x%02x\n", snd_ad1848_in(chip, 0x0e));
 174         printk("  0x07: right output    = 0x%02x  ", snd_ad1848_in(chip, 0x07));
 175         printk("  0x0f: data lwr count  = 0x%02x\n", snd_ad1848_in(chip, 0x0f));
 176 }
 177
 178 #endif
 179
 180 /*
 181  *  AD1848 detection / MCE routines
 182  */
 183
 184 static void snd_ad1848_mce_up(struct snd_ad1848 *chip)
 185 {
 186         unsigned long flags;
 187         int timeout;
 188
 189         snd_ad1848_wait(chip);
 190 #ifdef CONFIG_SND_DEBUG
 191         if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
 192                 snd_printk(KERN_WARNING "mce_up - auto calibration time out (0)\n");
 193 #endif
 194         spin_lock_irqsave(&chip->reg_lock, flags);
 195         chip->mce_bit |= AD1848_MCE;
 196         timeout = inb(AD1848P(chip, REGSEL));
 197         if (timeout == 0x80)
 198                 snd_printk(KERN_WARNING "mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
 199         if (!(timeout & AD1848_MCE))
 200                 outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
 201         spin_unlock_irqrestore(&chip->reg_lock, flags);
 202 }
 203
 204 static void snd_ad1848_mce_down(struct snd_ad1848 *chip)
 205 {
 206         unsigned long flags, timeout;
 207         int reg;
 208
 209         spin_lock_irqsave(&chip->reg_lock, flags);
 210         for (timeout = 5; timeout > 0; timeout--)
 211                 inb(AD1848P(chip, REGSEL));
 212         /* end of cleanup sequence */
 213         for (timeout = 12000; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
 214                 udelay(100);
 215
 216         snd_printdd("(1) timeout = %d\n", timeout);
 217
 218 #ifdef CONFIG_SND_DEBUG
 219         if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
 220                 snd_printk(KERN_WARNING "mce_down [0x%lx] - auto calibration time out (0)\n", AD1848P(chip, REGSEL));
 221 #endif
 222
 223         chip->mce_bit &= ~AD1848_MCE;
 224         reg = inb(AD1848P(chip, REGSEL));
 225         outb(chip->mce_bit | (reg & 0x1f), AD1848P(chip, REGSEL));
 226         if (reg == 0x80)
 227                 snd_printk(KERN_WARNING "mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
 228         if ((reg & AD1848_MCE) == 0) {
 229                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 230                 return;
 231         }
 232
 233         /*
 234          * Wait for auto-calibration (AC) process to finish, i.e. ACI to go low.
 235          * It may take up to 5 sample periods (at most 907 us @ 5.5125 kHz) for
 236          * the process to _start_, so it is important to wait at least that long
 237          * before checking.  Otherwise we might think AC has finished when it
 238          * has in fact not begun.  It could take 128 (no AC) or 384 (AC) cycles
 239          * for ACI to drop.  This gives a wait of at most 70 ms with a more
 240          * typical value of 3-9 ms.
 241          */
 242         timeout = jiffies + msecs_to_jiffies(250);
 243         do {
 244                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 245                 msleep(1);
 246                 spin_lock_irqsave(&chip->reg_lock, flags);
 247                 reg = snd_ad1848_in(chip, AD1848_TEST_INIT) &
 248                       AD1848_CALIB_IN_PROGRESS;
 249         } while (reg && time_before(jiffies, timeout));
 250         spin_unlock_irqrestore(&chip->reg_lock, flags);
 251         if (reg)
 252                 snd_printk(KERN_ERR
 253                            "mce_down - auto calibration time out (2)\n");
 254
 255         snd_printdd("(4) jiffies = %lu\n", jiffies);
 256         snd_printd("mce_down - exit = 0x%x\n", inb(AD1848P(chip, REGSEL)));
 257 }
 258
 259 static unsigned int snd_ad1848_get_count(unsigned char format,
 260                                          unsigned int size)
 261 {
 262         switch (format & 0xe0) {
 263         case AD1848_LINEAR_16:
 264                 size >>= 1;
 265                 break;
 266         }
 267         if (format & AD1848_STEREO)
 268                 size >>= 1;
 269         return size;
 270 }
 271
 272 static int snd_ad1848_trigger(struct snd_ad1848 *chip, unsigned char what,
 273                               int channel, int cmd)
 274 {
 275         int result = 0;
 276
 277 #if 0
 278         printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, inb(AD1848P(card, STATUS)));
 279 #endif
 280         spin_lock(&chip->reg_lock);
 281         if (cmd == SNDRV_PCM_TRIGGER_START) {
 282                 if (chip->image[AD1848_IFACE_CTRL] & what) {
 283                         spin_unlock(&chip->reg_lock);
 284                         return 0;
 285                 }
 286                 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] |= what);
 287                 chip->mode |= AD1848_MODE_RUNNING;
 288         } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 289                 if (!(chip->image[AD1848_IFACE_CTRL] & what)) {
 290                         spin_unlock(&chip->reg_lock);
 291                         return 0;
 292                 }
 293                 snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] &= ~what);
 294                 chip->mode &= ~AD1848_MODE_RUNNING;
 295         } else {
 296                 result = -EINVAL;
 297         }
 298         spin_unlock(&chip->reg_lock);
 299         return result;
 300 }
 301
 302 /*
 303  *  CODEC I/O
 304  */
 305
 306 static unsigned char snd_ad1848_get_rate(unsigned int rate)
 307 {
 308         int i;
 309
 310         for (i = 0; i < ARRAY_SIZE(rates); i++)
 311                 if (rate == rates[i])
 312                         return freq_bits[i];
 313         snd_BUG();
 314         return freq_bits[ARRAY_SIZE(rates) - 1];
 315 }
 316
 317 static int snd_ad1848_ioctl(struct snd_pcm_substream *substream,
 318                             unsigned int cmd, void *arg)
 319 {
 320         return snd_pcm_lib_ioctl(substream, cmd, arg);
 321 }
 322
 323 static unsigned char snd_ad1848_get_format(int format, int channels)
 324 {
 325         unsigned char rformat;
 326
 327         rformat = AD1848_LINEAR_8;
 328         switch (format) {
 329         case SNDRV_PCM_FORMAT_A_LAW:    rformat = AD1848_ALAW_8; break;
 330         case SNDRV_PCM_FORMAT_MU_LAW:   rformat = AD1848_ULAW_8; break;
 331         case SNDRV_PCM_FORMAT_S16_LE:   rformat = AD1848_LINEAR_16; break;
 332         }
 333         if (channels > 1)
 334                 rformat |= AD1848_STEREO;
 335 #if 0
 336         snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
 337 #endif
 338         return rformat;
 339 }
 340
 341 static void snd_ad1848_calibrate_mute(struct snd_ad1848 *chip, int mute)
 342 {
 343         unsigned long flags;
 344
 345         mute = mute ? 1 : 0;
 346         spin_lock_irqsave(&chip->reg_lock, flags);
 347         if (chip->calibrate_mute == mute) {
 348                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 349                 return;
 350         }
 351         if (!mute) {
 352                 snd_ad1848_dout(chip, AD1848_LEFT_INPUT, chip->image[AD1848_LEFT_INPUT]);
 353                 snd_ad1848_dout(chip, AD1848_RIGHT_INPUT, chip->image[AD1848_RIGHT_INPUT]);
 354         }
 355         snd_ad1848_dout(chip, AD1848_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_LEFT_INPUT]);
 356         snd_ad1848_dout(chip, AD1848_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_RIGHT_INPUT]);
 357         snd_ad1848_dout(chip, AD1848_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_LEFT_INPUT]);
 358         snd_ad1848_dout(chip, AD1848_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_RIGHT_INPUT]);
 359         snd_ad1848_dout(chip, AD1848_LEFT_OUTPUT, mute ? 0x80 : chip->image[AD1848_LEFT_OUTPUT]);
 360         snd_ad1848_dout(chip, AD1848_RIGHT_OUTPUT, mute ? 0x80 : chip->image[AD1848_RIGHT_OUTPUT]);
 361         chip->calibrate_mute = mute;
 362         spin_unlock_irqrestore(&chip->reg_lock, flags);
 363 }
 364
 365 static void snd_ad1848_set_data_format(struct snd_ad1848 *chip, struct snd_pcm_hw_params *hw_params)
 366 {
 367         if (hw_params == NULL) {
 368                 chip->image[AD1848_DATA_FORMAT] = 0x20;
 369         } else {
 370                 chip->image[AD1848_DATA_FORMAT] =
 371                     snd_ad1848_get_format(params_format(hw_params), params_channels(hw_params)) |
 372                     snd_ad1848_get_rate(params_rate(hw_params));
 373         }
 374         // snd_printk(">>> pmode = 0x%x, dfr = 0x%x\n", pstr->mode, chip->image[AD1848_DATA_FORMAT]);
 375 }
 376
 377 static int snd_ad1848_open(struct snd_ad1848 *chip, unsigned int mode)
 378 {
 379         unsigned long flags;
 380
 381         if (chip->mode & AD1848_MODE_OPEN)
 382                 return -EAGAIN;
 383
 384         snd_ad1848_mce_down(chip);
 385
 386 #ifdef SNDRV_DEBUG_MCE
 387         snd_printk("open: (1)\n");
 388 #endif
 389         snd_ad1848_mce_up(chip);
 390         spin_lock_irqsave(&chip->reg_lock, flags);
 391         chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
 392                              AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO |
 393                              AD1848_CALIB_MODE);
 394         chip->image[AD1848_IFACE_CTRL] |= AD1848_AUTOCALIB;
 395         snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
 396         spin_unlock_irqrestore(&chip->reg_lock, flags);
 397         snd_ad1848_mce_down(chip);
 398
 399 #ifdef SNDRV_DEBUG_MCE
 400         snd_printk("open: (2)\n");
 401 #endif
 402
 403         snd_ad1848_set_data_format(chip, NULL);
 404
 405         snd_ad1848_mce_up(chip);
 406         spin_lock_irqsave(&chip->reg_lock, flags);
 407         snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
 408         spin_unlock_irqrestore(&chip->reg_lock, flags);
 409         snd_ad1848_mce_down(chip);
 410
 411 #ifdef SNDRV_DEBUG_MCE
 412         snd_printk("open: (3)\n");
 413 #endif
 414
 415         /* ok. now enable and ack CODEC IRQ */
 416         spin_lock_irqsave(&chip->reg_lock, flags);
 417         outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
 418         outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
 419         chip->image[AD1848_PIN_CTRL] |= AD1848_IRQ_ENABLE;
 420         snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
 421         spin_unlock_irqrestore(&chip->reg_lock, flags);
 422
 423         chip->mode = mode;
 424
 425         return 0;
 426 }
 427
 428 static void snd_ad1848_close(struct snd_ad1848 *chip)
 429 {
 430         unsigned long flags;
 431
 432         if (!chip->mode)
 433                 return;
 434         /* disable IRQ */
 435         spin_lock_irqsave(&chip->reg_lock, flags);
 436         outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
 437         outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
 438         chip->image[AD1848_PIN_CTRL] &= ~AD1848_IRQ_ENABLE;
 439         snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
 440         spin_unlock_irqrestore(&chip->reg_lock, flags);
 441
 442         /* now disable capture & playback */
 443
 444         snd_ad1848_mce_up(chip);
 445         spin_lock_irqsave(&chip->reg_lock, flags);
 446         chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
 447                              AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
 448         snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
 449         spin_unlock_irqrestore(&chip->reg_lock, flags);
 450         snd_ad1848_mce_down(chip);
 451
 452         /* clear IRQ again */
 453         spin_lock_irqsave(&chip->reg_lock, flags);
 454         outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
 455         outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
 456         spin_unlock_irqrestore(&chip->reg_lock, flags);
 457
 458         chip->mode = 0;
 459 }
 460
 461 /*
 462  *  ok.. exported functions..
 463  */
 464
 465 static int snd_ad1848_playback_trigger(struct snd_pcm_substream *substream,
 466                                        int cmd)
 467 {
 468         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 469         return snd_ad1848_trigger(chip, AD1848_PLAYBACK_ENABLE, SNDRV_PCM_STREAM_PLAYBACK, cmd);
 470 }
 471
 472 static int snd_ad1848_capture_trigger(struct snd_pcm_substream *substream,
 473                                       int cmd)
 474 {
 475         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 476         return snd_ad1848_trigger(chip, AD1848_CAPTURE_ENABLE, SNDRV_PCM_STREAM_CAPTURE, cmd);
 477 }
 478
 479 static int snd_ad1848_playback_hw_params(struct snd_pcm_substream *substream,
 480                                          struct snd_pcm_hw_params *hw_params)
 481 {
 482         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 483         unsigned long flags;
 484         int err;
 485
 486         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 487                 return err;
 488         snd_ad1848_calibrate_mute(chip, 1);
 489         snd_ad1848_set_data_format(chip, hw_params);
 490         snd_ad1848_mce_up(chip);
 491         spin_lock_irqsave(&chip->reg_lock, flags);
 492         snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
 493         spin_unlock_irqrestore(&chip->reg_lock, flags);
 494         snd_ad1848_mce_down(chip);
 495         snd_ad1848_calibrate_mute(chip, 0);
 496         return 0;
 497 }
 498
 499 static int snd_ad1848_playback_hw_free(struct snd_pcm_substream *substream)
 500 {
 501         return snd_pcm_lib_free_pages(substream);
 502 }
 503
 504 static int snd_ad1848_playback_prepare(struct snd_pcm_substream *substream)
 505 {
 506         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 507         struct snd_pcm_runtime *runtime = substream->runtime;
 508         unsigned long flags;
 509         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 510         unsigned int count = snd_pcm_lib_period_bytes(substream);
 511
 512         chip->dma_size = size;
 513         chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO);
 514         snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
 515         count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
 516         spin_lock_irqsave(&chip->reg_lock, flags);
 517         snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
 518         snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
 519         spin_unlock_irqrestore(&chip->reg_lock, flags);
 520         return 0;
 521 }
 522
 523 static int snd_ad1848_capture_hw_params(struct snd_pcm_substream *substream,
 524                                         struct snd_pcm_hw_params *hw_params)
 525 {
 526         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 527         unsigned long flags;
 528         int err;
 529
 530         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 531                 return err;
 532         snd_ad1848_calibrate_mute(chip, 1);
 533         snd_ad1848_set_data_format(chip, hw_params);
 534         snd_ad1848_mce_up(chip);
 535         spin_lock_irqsave(&chip->reg_lock, flags);
 536         snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
 537         spin_unlock_irqrestore(&chip->reg_lock, flags);
 538         snd_ad1848_mce_down(chip);
 539         snd_ad1848_calibrate_mute(chip, 0);
 540         return 0;
 541 }
 542
 543 static int snd_ad1848_capture_hw_free(struct snd_pcm_substream *substream)
 544 {
 545         return snd_pcm_lib_free_pages(substream);
 546 }
 547
 548 static int snd_ad1848_capture_prepare(struct snd_pcm_substream *substream)
 549 {
 550         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 551         struct snd_pcm_runtime *runtime = substream->runtime;
 552         unsigned long flags;
 553         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 554         unsigned int count = snd_pcm_lib_period_bytes(substream);
 555
 556         chip->dma_size = size;
 557         chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
 558         snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
 559         count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
 560         spin_lock_irqsave(&chip->reg_lock, flags);
 561         snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
 562         snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
 563         spin_unlock_irqrestore(&chip->reg_lock, flags);
 564         return 0;
 565 }
 566
 567 static irqreturn_t snd_ad1848_interrupt(int irq, void *dev_id)
 568 {
 569         struct snd_ad1848 *chip = dev_id;
 570
 571         if ((chip->mode & AD1848_MODE_PLAY) && chip->playback_substream &&
 572             (chip->mode & AD1848_MODE_RUNNING))
 573                 snd_pcm_period_elapsed(chip->playback_substream);
 574         if ((chip->mode & AD1848_MODE_CAPTURE) && chip->capture_substream &&
 575             (chip->mode & AD1848_MODE_RUNNING))
 576                 snd_pcm_period_elapsed(chip->capture_substream);
 577         outb(0, AD1848P(chip, STATUS)); /* clear global interrupt bit */
 578         return IRQ_HANDLED;
 579 }
 580
 581 static snd_pcm_uframes_t snd_ad1848_playback_pointer(struct snd_pcm_substream *substream)
 582 {
 583         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 584         size_t ptr;
 585
 586         if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_PLAYBACK_ENABLE))
 587                 return 0;
 588         ptr = snd_dma_pointer(chip->dma, chip->dma_size);
 589         return bytes_to_frames(substream->runtime, ptr);
 590 }
 591
 592 static snd_pcm_uframes_t snd_ad1848_capture_pointer(struct snd_pcm_substream *substream)
 593 {
 594         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 595         size_t ptr;
 596
 597         if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_CAPTURE_ENABLE))
 598                 return 0;
 599         ptr = snd_dma_pointer(chip->dma, chip->dma_size);
 600         return bytes_to_frames(substream->runtime, ptr);
 601 }
 602
 603 /*
 604
 605  */
 606
 607 static void snd_ad1848_thinkpad_twiddle(struct snd_ad1848 *chip, int on) {
 608
 609         int tmp;
 610
 611         if (!chip->thinkpad_flag) return;
 612
 613         outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
 614         tmp = inb(AD1848_THINKPAD_CTL_PORT2);
 615
 616         if (on)
 617                 /* turn it on */
 618                 tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
 619         else
 620                 /* turn it off */
 621                 tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
 622
 623         outb(tmp, AD1848_THINKPAD_CTL_PORT2);
 624
 625 }
 626
 627 #ifdef CONFIG_PM
 628 static void snd_ad1848_suspend(struct snd_ad1848 *chip)
 629 {
 630         snd_pcm_suspend_all(chip->pcm);
 631         if (chip->thinkpad_flag)
 632                 snd_ad1848_thinkpad_twiddle(chip, 0);
 633 }
 634
 635 static void snd_ad1848_resume(struct snd_ad1848 *chip)
 636 {
 637         int i;
 638
 639         if (chip->thinkpad_flag)
 640                 snd_ad1848_thinkpad_twiddle(chip, 1);
 641
 642         /* clear any pendings IRQ */
 643         inb(AD1848P(chip, STATUS));
 644         outb(0, AD1848P(chip, STATUS));
 645         mb();
 646
 647         snd_ad1848_mce_down(chip);
 648         for (i = 0; i < 16; i++)
 649                 snd_ad1848_out(chip, i, chip->image[i]);
 650         snd_ad1848_mce_up(chip);
 651         snd_ad1848_mce_down(chip);
 652 }
 653 #endif /* CONFIG_PM */
 654
 655 static int snd_ad1848_probe(struct snd_ad1848 * chip)
 656 {
 657         unsigned long flags;
 658         int i, id, rev, ad1847;
 659         unsigned char *ptr;
 660
 661 #if 0
 662         snd_ad1848_debug(chip);
 663 #endif
 664         id = ad1847 = 0;
 665         for (i = 0; i < 1000; i++) {
 666                 mb();
 667                 if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
 668                         udelay(500);
 669                 else {
 670                         spin_lock_irqsave(&chip->reg_lock, flags);
 671                         snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
 672                         snd_ad1848_out(chip, AD1848_LEFT_INPUT, 0xaa);
 673                         snd_ad1848_out(chip, AD1848_RIGHT_INPUT, 0x45);
 674                         rev = snd_ad1848_in(chip, AD1848_RIGHT_INPUT);
 675                         if (rev == 0x65) {
 676                                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 677                                 id = 1;
 678                                 ad1847 = 1;
 679                                 break;
 680                         }
 681                         if (snd_ad1848_in(chip, AD1848_LEFT_INPUT) == 0xaa && rev == 0x45) {
 682                                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 683                                 id = 1;
 684                                 break;
 685                         }
 686                         spin_unlock_irqrestore(&chip->reg_lock, flags);
 687                 }
 688         }
 689         if (id != 1)
 690                 return -ENODEV; /* no valid device found */
 691         if (chip->hardware == AD1848_HW_DETECT) {
 692                 if (ad1847) {
 693                         chip->hardware = AD1848_HW_AD1847;
 694                 } else {
 695                         chip->hardware = AD1848_HW_AD1848;
 696                         rev = snd_ad1848_in(chip, AD1848_MISC_INFO);
 697                         if (rev & 0x80) {
 698                                 chip->hardware = AD1848_HW_CS4248;
 699                         } else if ((rev & 0x0f) == 0x0a) {
 700                                 snd_ad1848_out(chip, AD1848_MISC_INFO, 0x40);
 701                                 for (i = 0; i < 16; ++i) {
 702                                         if (snd_ad1848_in(chip, i) != snd_ad1848_in(chip, i + 16)) {
 703                                                 chip->hardware = AD1848_HW_CMI8330;
 704                                                 break;
 705                                         }
 706                                 }
 707                                 snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
 708                         }
 709                 }
 710         }
 711         spin_lock_irqsave(&chip->reg_lock, flags);
 712         inb(AD1848P(chip, STATUS));     /* clear any pendings IRQ */
 713         outb(0, AD1848P(chip, STATUS));
 714         mb();
 715         spin_unlock_irqrestore(&chip->reg_lock, flags);
 716
 717         chip->image[AD1848_MISC_INFO] = 0x00;
 718         chip->image[AD1848_IFACE_CTRL] =
 719             (chip->image[AD1848_IFACE_CTRL] & ~AD1848_SINGLE_DMA) | AD1848_SINGLE_DMA;
 720         ptr = (unsigned char *) &chip->image;
 721         snd_ad1848_mce_down(chip);
 722         spin_lock_irqsave(&chip->reg_lock, flags);
 723         for (i = 0; i < 16; i++)        /* ok.. fill all AD1848 registers */
 724                 snd_ad1848_out(chip, i, *ptr++);
 725         spin_unlock_irqrestore(&chip->reg_lock, flags);
 726         snd_ad1848_mce_up(chip);
 727         snd_ad1848_mce_down(chip);
 728         return 0;               /* all things are ok.. */
 729 }
 730
 731 /*
 732
 733  */
 734
 735 static struct snd_pcm_hardware snd_ad1848_playback =
 736 {
 737         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 738                                  SNDRV_PCM_INFO_MMAP_VALID),
 739         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
 740                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
 741         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 742         .rate_min =             5510,
 743         .rate_max =             48000,
 744         .channels_min =         1,
 745         .channels_max =         2,
 746         .buffer_bytes_max =     (128*1024),
 747         .period_bytes_min =     64,
 748         .period_bytes_max =     (128*1024),
 749         .periods_min =          1,
 750         .periods_max =          1024,
 751         .fifo_size =            0,
 752 };
 753
 754 static struct snd_pcm_hardware snd_ad1848_capture =
 755 {
 756         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 757                                  SNDRV_PCM_INFO_MMAP_VALID),
 758         .formats =              (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
 759                                  SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
 760         .rates =                SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
 761         .rate_min =             5510,
 762         .rate_max =             48000,
 763         .channels_min =         1,
 764         .channels_max =         2,
 765         .buffer_bytes_max =     (128*1024),
 766         .period_bytes_min =     64,
 767         .period_bytes_max =     (128*1024),
 768         .periods_min =          1,
 769         .periods_max =          1024,
 770         .fifo_size =            0,
 771 };
 772
 773 /*
 774
 775  */
 776
 777 static int snd_ad1848_playback_open(struct snd_pcm_substream *substream)
 778 {
 779         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 780         struct snd_pcm_runtime *runtime = substream->runtime;
 781         int err;
 782
 783         if ((err = snd_ad1848_open(chip, AD1848_MODE_PLAY)) < 0)
 784                 return err;
 785         chip->playback_substream = substream;
 786         runtime->hw = snd_ad1848_playback;
 787         snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
 788         snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
 789         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
 790         return 0;
 791 }
 792
 793 static int snd_ad1848_capture_open(struct snd_pcm_substream *substream)
 794 {
 795         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 796         struct snd_pcm_runtime *runtime = substream->runtime;
 797         int err;
 798
 799         if ((err = snd_ad1848_open(chip, AD1848_MODE_CAPTURE)) < 0)
 800                 return err;
 801         chip->capture_substream = substream;
 802         runtime->hw = snd_ad1848_capture;
 803         snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
 804         snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
 805         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
 806         return 0;
 807 }
 808
 809 static int snd_ad1848_playback_close(struct snd_pcm_substream *substream)
 810 {
 811         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 812
 813         chip->mode &= ~AD1848_MODE_PLAY;
 814         chip->playback_substream = NULL;
 815         snd_ad1848_close(chip);
 816         return 0;
 817 }
 818
 819 static int snd_ad1848_capture_close(struct snd_pcm_substream *substream)
 820 {
 821         struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
 822
 823         chip->mode &= ~AD1848_MODE_CAPTURE;
 824         chip->capture_substream = NULL;
 825         snd_ad1848_close(chip);
 826         return 0;
 827 }
 828
 829 static int snd_ad1848_free(struct snd_ad1848 *chip)
 830 {
 831         release_and_free_resource(chip->res_port);
 832         if (chip->irq >= 0)
 833                 free_irq(chip->irq, (void *) chip);
 834         if (chip->dma >= 0) {
 835                 snd_dma_disable(chip->dma);
 836                 free_dma(chip->dma);
 837         }
 838         kfree(chip);
 839         return 0;
 840 }
 841
 842 static int snd_ad1848_dev_free(struct snd_device *device)
 843 {
 844         struct snd_ad1848 *chip = device->device_data;
 845         return snd_ad1848_free(chip);
 846 }
 847
 848 static const char *snd_ad1848_chip_id(struct snd_ad1848 *chip)
 849 {
 850         switch (chip->hardware) {
 851         case AD1848_HW_AD1847:  return "AD1847";
 852         case AD1848_HW_AD1848:  return "AD1848";
 853         case AD1848_HW_CS4248:  return "CS4248";
 854         case AD1848_HW_CMI8330: return "CMI8330/C3D";
 855         default:                return "???";
 856         }
 857 }
 858
 859 int snd_ad1848_create(struct snd_card *card,
 860                       unsigned long port,
 861                       int irq, int dma,
 862                       unsigned short hardware,
 863                       struct snd_ad1848 ** rchip)
 864 {
 865         static struct snd_device_ops ops = {
 866                 .dev_free =     snd_ad1848_dev_free,
 867         };
 868         struct snd_ad1848 *chip;
 869         int err;
 870
 871         *rchip = NULL;
 872         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 873         if (chip == NULL)
 874                 return -ENOMEM;
 875         spin_lock_init(&chip->reg_lock);
 876         chip->card = card;
 877         chip->port = port;
 878         chip->irq = -1;
 879         chip->dma = -1;
 880         chip->hardware = hardware;
 881         memcpy(&chip->image, &snd_ad1848_original_image, sizeof(snd_ad1848_original_image));
 882
 883         if ((chip->res_port = request_region(port, 4, "AD1848")) == NULL) {
 884                 snd_printk(KERN_ERR "ad1848: can't grab port 0x%lx\n", port);
 885                 snd_ad1848_free(chip);
 886                 return -EBUSY;
 887         }
 888         if (request_irq(irq, snd_ad1848_interrupt, IRQF_DISABLED, "AD1848", (void *) chip)) {
 889                 snd_printk(KERN_ERR "ad1848: can't grab IRQ %d\n", irq);
 890                 snd_ad1848_free(chip);
 891                 return -EBUSY;
 892         }
 893         chip->irq = irq;
 894         if (request_dma(dma, "AD1848")) {
 895                 snd_printk(KERN_ERR "ad1848: can't grab DMA %d\n", dma);
 896                 snd_ad1848_free(chip);
 897                 return -EBUSY;
 898         }
 899         chip->dma = dma;
 900
 901         if (hardware == AD1848_HW_THINKPAD) {
 902                 chip->thinkpad_flag = 1;
 903                 chip->hardware = AD1848_HW_DETECT; /* reset */
 904                 snd_ad1848_thinkpad_twiddle(chip, 1);
 905         }
 906
 907         if (snd_ad1848_probe(chip) < 0) {
 908                 snd_ad1848_free(chip);
 909                 return -ENODEV;
 910         }
 911
 912         /* Register device */
 913         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
 914                 snd_ad1848_free(chip);
 915                 return err;
 916         }
 917
 918 #ifdef CONFIG_PM
 919         chip->suspend = snd_ad1848_suspend;
 920         chip->resume = snd_ad1848_resume;
 921 #endif
 922
 923         *rchip = chip;
 924         return 0;
 925 }
 926
 927 EXPORT_SYMBOL(snd_ad1848_create);
 928
 929 static struct snd_pcm_ops snd_ad1848_playback_ops = {
 930         .open =         snd_ad1848_playback_open,
 931         .close =        snd_ad1848_playback_close,
 932         .ioctl =        snd_ad1848_ioctl,
 933         .hw_params =    snd_ad1848_playback_hw_params,
 934         .hw_free =      snd_ad1848_playback_hw_free,
 935         .prepare =      snd_ad1848_playback_prepare,
 936         .trigger =      snd_ad1848_playback_trigger,
 937         .pointer =      snd_ad1848_playback_pointer,
 938 };
 939
 940 static struct snd_pcm_ops snd_ad1848_capture_ops = {
 941         .open =         snd_ad1848_capture_open,
 942         .close =        snd_ad1848_capture_close,
 943         .ioctl =        snd_ad1848_ioctl,
 944         .hw_params =    snd_ad1848_capture_hw_params,
 945         .hw_free =      snd_ad1848_capture_hw_free,
 946         .prepare =      snd_ad1848_capture_prepare,
 947         .trigger =      snd_ad1848_capture_trigger,
 948         .pointer =      snd_ad1848_capture_pointer,
 949 };
 950
 951 int snd_ad1848_pcm(struct snd_ad1848 *chip, int device, struct snd_pcm **rpcm)
 952 {
 953         struct snd_pcm *pcm;
 954         int err;
 955
 956         if ((err = snd_pcm_new(chip->card, "AD1848", device, 1, 1, &pcm)) < 0)
 957                 return err;
 958
 959         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1848_playback_ops);
 960         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1848_capture_ops);
 961
 962         pcm->private_data = chip;
 963         pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
 964         strcpy(pcm->name, snd_ad1848_chip_id(chip));
 965
 966         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 967                                               snd_dma_isa_data(),
 968                                               64*1024, chip->dma > 3 ? 128*1024 : 64*1024);
 969
 970         chip->pcm = pcm;
 971         if (rpcm)
 972                 *rpcm = pcm;
 973         return 0;
 974 }
 975
 976 EXPORT_SYMBOL(snd_ad1848_pcm);
 977
 978 const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction)
 979 {
 980         return direction == SNDRV_PCM_STREAM_PLAYBACK ?
 981                 &snd_ad1848_playback_ops : &snd_ad1848_capture_ops;
 982 }
 983
 984 EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);
 985
 986 /*
 987  *  MIXER part
 988  */
 989
 990 static int snd_ad1848_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 991 {
 992         static char *texts[4] = {
 993                 "Line", "Aux", "Mic", "Mix"
 994         };
 995
 996         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 997         uinfo->count = 2;
 998         uinfo->value.enumerated.items = 4;
 999         if (uinfo->value.enumerated.item > 3)
1000                 uinfo->value.enumerated.item = 3;
1001         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1002         return 0;
1003 }
1004
1005 static int snd_ad1848_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1006 {
1007         struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1008         unsigned long flags;
1009
1010         spin_lock_irqsave(&chip->reg_lock, flags);
1011         ucontrol->value.enumerated.item[0] = (chip->image[AD1848_LEFT_INPUT] & AD1848_MIXS_ALL) >> 6;
1012         ucontrol->value.enumerated.item[1] = (chip->image[AD1848_RIGHT_INPUT] & AD1848_MIXS_ALL) >> 6;
1013         spin_unlock_irqrestore(&chip->reg_lock, flags);
1014         return 0;
1015 }
1016
1017 static int snd_ad1848_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1018 {
1019         struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1020         unsigned long flags;
1021         unsigned short left, right;
1022         int change;
1023
1024         if (ucontrol->value.enumerated.item[0] > 3 ||
1025             ucontrol->value.enumerated.item[1] > 3)
1026                 return -EINVAL;
1027         left = ucontrol->value.enumerated.item[0] << 6;
1028         right = ucontrol->value.enumerated.item[1] << 6;
1029         spin_lock_irqsave(&chip->reg_lock, flags);
1030         left = (chip->image[AD1848_LEFT_INPUT] & ~AD1848_MIXS_ALL) | left;
1031         right = (chip->image[AD1848_RIGHT_INPUT] & ~AD1848_MIXS_ALL) | right;
1032         change = left != chip->image[AD1848_LEFT_INPUT] ||
1033                  right != chip->image[AD1848_RIGHT_INPUT];
1034         snd_ad1848_out(chip, AD1848_LEFT_INPUT, left);
1035         snd_ad1848_out(chip, AD1848_RIGHT_INPUT, right);
1036         spin_unlock_irqrestore(&chip->reg_lock, flags);
1037         return change;
1038 }
1039
1040 static int snd_ad1848_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1041 {
1042         int mask = (kcontrol->private_value >> 16) & 0xff;
1043
1044         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1045         uinfo->count = 1;
1046         uinfo->value.integer.min = 0;
1047         uinfo->value.integer.max = mask;
1048         return 0;
1049 }
1050
1051 static int snd_ad1848_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1052 {
1053         struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1054         unsigned long flags;
1055         int reg = kcontrol->private_value & 0xff;
1056         int shift = (kcontrol->private_value >> 8) & 0xff;
1057         int mask = (kcontrol->private_value >> 16) & 0xff;
1058         int invert = (kcontrol->private_value >> 24) & 0xff;
1059
1060         spin_lock_irqsave(&chip->reg_lock, flags);
1061         ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1062         spin_unlock_irqrestore(&chip->reg_lock, flags);
1063         if (invert)
1064                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1065         return 0;
1066 }
1067
1068 static int snd_ad1848_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1069 {
1070         struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1071         unsigned long flags;
1072         int reg = kcontrol->private_value & 0xff;
1073         int shift = (kcontrol->private_value >> 8) & 0xff;
1074         int mask = (kcontrol->private_value >> 16) & 0xff;
1075         int invert = (kcontrol->private_value >> 24) & 0xff;
1076         int change;
1077         unsigned short val;
1078
1079         val = (ucontrol->value.integer.value[0] & mask);
1080         if (invert)
1081                 val = mask - val;
1082         val <<= shift;
1083         spin_lock_irqsave(&chip->reg_lock, flags);
1084         val = (chip->image[reg] & ~(mask << shift)) | val;
1085         change = val != chip->image[reg];
1086         snd_ad1848_out(chip, reg, val);
1087         spin_unlock_irqrestore(&chip->reg_lock, flags);
1088         return change;
1089 }
1090
1091 static int snd_ad1848_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1092 {
1093         int mask = (kcontrol->private_value >> 24) & 0xff;
1094
1095         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1096         uinfo->count = 2;
1097         uinfo->value.integer.min = 0;
1098         uinfo->value.integer.max = mask;
1099         return 0;
1100 }
1101
1102 static int snd_ad1848_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1103 {
1104         struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1105         unsigned long flags;
1106         int left_reg = kcontrol->private_value & 0xff;
1107         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1108         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1109         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1110         int mask = (kcontrol->private_value >> 24) & 0xff;
1111         int invert = (kcontrol->private_value >> 22) & 1;
1112
1113         spin_lock_irqsave(&chip->reg_lock, flags);
1114         ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
1115         ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
1116         spin_unlock_irqrestore(&chip->reg_lock, flags);
1117         if (invert) {
1118                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1119                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1120         }
1121         return 0;
1122 }
1123
1124 static int snd_ad1848_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1125 {
1126         struct snd_ad1848 *chip = snd_kcontrol_chip(kcontrol);
1127         unsigned long flags;
1128         int left_reg = kcontrol->private_value & 0xff;
1129         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1130         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1131         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1132         int mask = (kcontrol->private_value >> 24) & 0xff;
1133         int invert = (kcontrol->private_value >> 22) & 1;
1134         int change;
1135         unsigned short val1, val2;
1136
1137         val1 = ucontrol->value.integer.value[0] & mask;
1138         val2 = ucontrol->value.integer.value[1] & mask;
1139         if (invert) {
1140                 val1 = mask - val1;
1141                 val2 = mask - val2;
1142         }
1143         val1 <<= shift_left;
1144         val2 <<= shift_right;
1145         spin_lock_irqsave(&chip->reg_lock, flags);
1146         if (left_reg != right_reg) {
1147                 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1148                 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1149                 change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
1150                 snd_ad1848_out(chip, left_reg, val1);
1151                 snd_ad1848_out(chip, right_reg, val2);
1152         } else {
1153                 val1 = (chip->image[left_reg] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
1154                 change = val1 != chip->image[left_reg];
1155                 snd_ad1848_out(chip, left_reg, val1);
1156         }
1157         spin_unlock_irqrestore(&chip->reg_lock, flags);
1158         return change;
1159 }
1160
1161 /*
1162  */
1163 int snd_ad1848_add_ctl_elem(struct snd_ad1848 *chip,
1164                             const struct ad1848_mix_elem *c)
1165 {
1166         static struct snd_kcontrol_new newctls[] = {
1167                 [AD1848_MIX_SINGLE] = {
1168                         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1169                         .info = snd_ad1848_info_single,
1170                         .get = snd_ad1848_get_single,
1171                         .put = snd_ad1848_put_single,
1172                 },
1173                 [AD1848_MIX_DOUBLE] = {
1174                         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1175                         .info = snd_ad1848_info_double,
1176                         .get = snd_ad1848_get_double,
1177                         .put = snd_ad1848_put_double,
1178                 },
1179                 [AD1848_MIX_CAPTURE] = {
1180                         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1181                         .info = snd_ad1848_info_mux,
1182                         .get = snd_ad1848_get_mux,
1183                         .put = snd_ad1848_put_mux,
1184                 },
1185         };
1186         struct snd_kcontrol *ctl;
1187         int err;
1188
1189         ctl = snd_ctl_new1(&newctls[c->type], chip);
1190         if (! ctl)
1191                 return -ENOMEM;
1192         strlcpy(ctl->id.name, c->name, sizeof(ctl->id.name));
1193         ctl->id.index = c->index;
1194         ctl->private_value = c->private_value;
1195         if (c->tlv) {
1196                 ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1197                 ctl->tlv.p = c->tlv;
1198         }
1199         if ((err = snd_ctl_add(chip->card, ctl)) < 0)
1200                 return err;
1201         return 0;
1202 }
1203
1204 EXPORT_SYMBOL(snd_ad1848_add_ctl_elem);
1205
1206 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
1207 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
1208 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
1209
1210 static struct ad1848_mix_elem snd_ad1848_controls[] = {
1211 AD1848_DOUBLE("PCM Playback Switch", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1),
1212 AD1848_DOUBLE_TLV("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1,
1213                   db_scale_6bit),
1214 AD1848_DOUBLE("Aux Playback Switch", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1215 AD1848_DOUBLE_TLV("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
1216                   db_scale_5bit_12db_max),
1217 AD1848_DOUBLE("Aux Playback Switch", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1218 AD1848_DOUBLE_TLV("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
1219                   db_scale_5bit_12db_max),
1220 AD1848_DOUBLE_TLV("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0,
1221                   db_scale_rec_gain),
1222 {
1223         .name = "Capture Source",
1224         .type = AD1848_MIX_CAPTURE,
1225 },
1226 AD1848_SINGLE("Loopback Capture Switch", 0, AD1848_LOOPBACK, 0, 1, 0),
1227 AD1848_SINGLE_TLV("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0,
1228                   db_scale_6bit),
1229 };
1230
1231 int snd_ad1848_mixer(struct snd_ad1848 *chip)
1232 {
1233         struct snd_card *card;
1234         struct snd_pcm *pcm;
1235         unsigned int idx;
1236         int err;
1237
1238         snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1239
1240         pcm = chip->pcm;
1241         card = chip->card;
1242
1243         strcpy(card->mixername, pcm->name);
1244
1245         for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++)
1246                 if ((err = snd_ad1848_add_ctl_elem(chip, &snd_ad1848_controls[idx])) < 0)
1247                         return err;
1248
1249         return 0;
1250 }
1251
1252 EXPORT_SYMBOL(snd_ad1848_mixer);
1253
1254 /*
1255  *  INIT part
1256  */
1257
1258 static int __init alsa_ad1848_init(void)
1259 {
1260         return 0;
1261 }
1262
1263 static void __exit alsa_ad1848_exit(void)
1264 {
1265 }
1266
1267 module_init(alsa_ad1848_init)
1268 module_exit(alsa_ad1848_exit)