git.oblomov.eu Git - linux-2.6/blob - sound/pci/au88x0/au88x0_core.c

   1 /*
   2  *  This program is free software; you can redistribute it and/or modify
   3  *  it under the terms of the GNU General Public License as published by
   4  *  the Free Software Foundation; either version 2 of the License, or
   5  *  (at your option) any later version.
   6  *
   7  *  This program is distributed in the hope that it will be useful,
   8  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *  GNU Library General Public License for more details.
  11  *
  12  *  You should have received a copy of the GNU General Public License
  13  *  along with this program; if not, write to the Free Software
  14  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  15  */
  16
  17 /*
  18     Vortex core low level functions.
  19
  20  Author: Manuel Jander (mjander@users.sourceforge.cl)
  21  These functions are mainly the result of translations made
  22  from the original disassembly of the au88x0 binary drivers,
  23  written by Aureal before they went down.
  24  Many thanks to the Jeff Muizelaar, Kester Maddock, and whoever
  25  contributed to the OpenVortex project.
  26  The author of this file, put the few available pieces together
  27  and translated the rest of the riddle (Mix, Src and connection stuff).
  28  Some things are still to be discovered, and their meanings are unclear.
  29
  30  Some of these functions aren't intended to be really used, rather
  31  to help to understand how does the AU88X0 chips work. Keep them in, because
  32  they could be used somewhere in the future.
  33
  34  This code hasn't been tested or proof read thoroughly. If you wanna help,
  35  take a look at the AU88X0 assembly and check if this matches.
  36  Functions tested ok so far are (they show the desired effect
  37  at least):
  38    vortex_routes(); (1 bug fixed).
  39    vortex_adb_addroute();
  40    vortex_adb_addroutes();
  41    vortex_connect_codecplay();
  42    vortex_src_flushbuffers();
  43    vortex_adbdma_setmode();  note: still some unknown arguments!
  44    vortex_adbdma_startfifo();
  45    vortex_adbdma_stopfifo();
  46    vortex_fifo_setadbctrl(); note: still some unknown arguments!
  47    vortex_mix_setinputvolumebyte();
  48    vortex_mix_enableinput();
  49    vortex_mixer_addWTD(); (fixed)
  50    vortex_connection_adbdma_src_src();
  51    vortex_connection_adbdma_src();
  52    vortex_src_change_convratio();
  53    vortex_src_addWTD(); (fixed)
  54
  55  History:
  56
  57  01-03-2003 First revision.
  58  01-21-2003 Some bug fixes.
  59  17-02-2003 many bugfixes after a big versioning mess.
  60  18-02-2003 JAAAAAHHHUUUUUU!!!! The mixer works !! I'm just so happy !
  61                          (2 hours later...) I cant believe it! Im really lucky today.
  62                          Now the SRC is working too! Yeah! XMMS works !
  63  20-02-2003 First steps into the ALSA world.
  64  28-02-2003 As my birthday present, i discovered how the DMA buffer pages really
  65             work :-). It was all wrong.
  66  12-03-2003 ALSA driver starts working (2 channels).
  67  16-03-2003 More srcblock_setupchannel discoveries.
  68  12-04-2003 AU8830 playback support. Recording in the works.
  69  17-04-2003 vortex_route() and vortex_routes() bug fixes. AU8830 recording
  70                         works now, but chipn' dale effect is still there.
  71  16-05-2003 SrcSetupChannel cleanup. Moved the Src setup stuff entirely
  72             into au88x0_pcm.c .
  73  06-06-2003 Buffer shifter bugfix. Mixer volume fix.
  74  07-12-2003 A3D routing finally fixed. Believed to be OK.
  75  25-03-2004 Many thanks to Claudia, for such valuable bug reports.
  76
  77 */
  78
  79 #include "au88x0.h"
  80 #include "au88x0_a3d.h"
  81 #include <linux/delay.h>
  82
  83 /*  MIXER (CAsp4Mix.s and CAsp4Mixer.s) */
  84
  85 // FIXME: get rid of this.
  86 static int mchannels[NR_MIXIN];
  87 static int rampchs[NR_MIXIN];
  88
  89 static void vortex_mixer_en_sr(vortex_t * vortex, int channel)
  90 {
  91         hwwrite(vortex->mmio, VORTEX_MIXER_SR,
  92                 hwread(vortex->mmio, VORTEX_MIXER_SR) | (0x1 << channel));
  93 }
  94 static void vortex_mixer_dis_sr(vortex_t * vortex, int channel)
  95 {
  96         hwwrite(vortex->mmio, VORTEX_MIXER_SR,
  97                 hwread(vortex->mmio, VORTEX_MIXER_SR) & ~(0x1 << channel));
  98 }
  99
 100 #if 0
 101 static void
 102 vortex_mix_muteinputgain(vortex_t * vortex, unsigned char mix,
 103                          unsigned char channel)
 104 {
 105         hwwrite(vortex->mmio, VORTEX_MIX_INVOL_A + ((mix << 5) + channel),
 106                 0x80);
 107         hwwrite(vortex->mmio, VORTEX_MIX_INVOL_B + ((mix << 5) + channel),
 108                 0x80);
 109 }
 110
 111 static int vortex_mix_getvolume(vortex_t * vortex, unsigned char mix)
 112 {
 113         int a;
 114         a = hwread(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2)) & 0xff;
 115         //FP2LinearFrac(a);
 116         return (a);
 117 }
 118
 119 static int
 120 vortex_mix_getinputvolume(vortex_t * vortex, unsigned char mix,
 121                           int channel, int *vol)
 122 {
 123         int a;
 124         if (!(mchannels[mix] & (1 << channel)))
 125                 return 0;
 126         a = hwread(vortex->mmio,
 127                    VORTEX_MIX_INVOL_A + (((mix << 5) + channel) << 2));
 128         /*
 129            if (rampchs[mix] == 0)
 130            a = FP2LinearFrac(a);
 131            else
 132            a = FP2LinearFracWT(a);
 133          */
 134         *vol = a;
 135         return (0);
 136 }
 137
 138 static unsigned int vortex_mix_boost6db(unsigned char vol)
 139 {
 140         return (vol + 8);       /* WOW! what a complex function! */
 141 }
 142
 143 static void vortex_mix_rampvolume(vortex_t * vortex, int mix)
 144 {
 145         int ch;
 146         char a;
 147         // This function is intended for ramping down only (see vortex_disableinput()).
 148         for (ch = 0; ch < 0x20; ch++) {
 149                 if (((1 << ch) & rampchs[mix]) == 0)
 150                         continue;
 151                 a = hwread(vortex->mmio,
 152                            VORTEX_MIX_INVOL_B + (((mix << 5) + ch) << 2));
 153                 if (a > -126) {
 154                         a -= 2;
 155                         hwwrite(vortex->mmio,
 156                                 VORTEX_MIX_INVOL_A +
 157                                 (((mix << 5) + ch) << 2), a);
 158                         hwwrite(vortex->mmio,
 159                                 VORTEX_MIX_INVOL_B +
 160                                 (((mix << 5) + ch) << 2), a);
 161                 } else
 162                         vortex_mix_killinput(vortex, mix, ch);
 163         }
 164 }
 165
 166 static int
 167 vortex_mix_getenablebit(vortex_t * vortex, unsigned char mix, int mixin)
 168 {
 169         int addr, temp;
 170         if (mixin >= 0)
 171                 addr = mixin;
 172         else
 173                 addr = mixin + 3;
 174         addr = ((mix << 3) + (addr >> 2)) << 2;
 175         temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
 176         return ((temp >> (mixin & 3)) & 1);
 177 }
 178 #endif
 179 static void
 180 vortex_mix_setvolumebyte(vortex_t * vortex, unsigned char mix,
 181                          unsigned char vol)
 182 {
 183         int temp;
 184         hwwrite(vortex->mmio, VORTEX_MIX_VOL_A + (mix << 2), vol);
 185         if (1) {                /*if (this_10) */
 186                 temp = hwread(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2));
 187                 if ((temp != 0x80) || (vol == 0x80))
 188                         return;
 189         }
 190         hwwrite(vortex->mmio, VORTEX_MIX_VOL_B + (mix << 2), vol);
 191 }
 192
 193 static void
 194 vortex_mix_setinputvolumebyte(vortex_t * vortex, unsigned char mix,
 195                               int mixin, unsigned char vol)
 196 {
 197         int temp;
 198
 199         hwwrite(vortex->mmio,
 200                 VORTEX_MIX_INVOL_A + (((mix << 5) + mixin) << 2), vol);
 201         if (1) {                /* this_10, initialized to 1. */
 202                 temp =
 203                     hwread(vortex->mmio,
 204                            VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2));
 205                 if ((temp != 0x80) || (vol == 0x80))
 206                         return;
 207         }
 208         hwwrite(vortex->mmio,
 209                 VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), vol);
 210 }
 211
 212 static void
 213 vortex_mix_setenablebit(vortex_t * vortex, unsigned char mix, int mixin, int en)
 214 {
 215         int temp, addr;
 216
 217         if (mixin < 0)
 218                 addr = (mixin + 3);
 219         else
 220                 addr = mixin;
 221         addr = ((mix << 3) + (addr >> 2)) << 2;
 222         temp = hwread(vortex->mmio, VORTEX_MIX_ENIN + addr);
 223         if (en)
 224                 temp |= (1 << (mixin & 3));
 225         else
 226                 temp &= ~(1 << (mixin & 3));
 227         /* Mute input. Astatic void crackling? */
 228         hwwrite(vortex->mmio,
 229                 VORTEX_MIX_INVOL_B + (((mix << 5) + mixin) << 2), 0x80);
 230         /* Looks like clear buffer. */
 231         hwwrite(vortex->mmio, VORTEX_MIX_SMP + (mixin << 2), 0x0);
 232         hwwrite(vortex->mmio, VORTEX_MIX_SMP + 4 + (mixin << 2), 0x0);
 233         /* Write enable bit. */
 234         hwwrite(vortex->mmio, VORTEX_MIX_ENIN + addr, temp);
 235 }
 236
 237 static void
 238 vortex_mix_killinput(vortex_t * vortex, unsigned char mix, int mixin)
 239 {
 240         rampchs[mix] &= ~(1 << mixin);
 241         vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);
 242         mchannels[mix] &= ~(1 << mixin);
 243         vortex_mix_setenablebit(vortex, mix, mixin, 0);
 244 }
 245
 246 static void
 247 vortex_mix_enableinput(vortex_t * vortex, unsigned char mix, int mixin)
 248 {
 249         vortex_mix_killinput(vortex, mix, mixin);
 250         if ((mchannels[mix] & (1 << mixin)) == 0) {
 251                 vortex_mix_setinputvolumebyte(vortex, mix, mixin, 0x80);        /*0x80 : mute */
 252                 mchannels[mix] |= (1 << mixin);
 253         }
 254         vortex_mix_setenablebit(vortex, mix, mixin, 1);
 255 }
 256
 257 static void
 258 vortex_mix_disableinput(vortex_t * vortex, unsigned char mix, int channel,
 259                         int ramp)
 260 {
 261         if (ramp) {
 262                 rampchs[mix] |= (1 << channel);
 263                 // Register callback.
 264                 //vortex_mix_startrampvolume(vortex);
 265                 vortex_mix_killinput(vortex, mix, channel);
 266         } else
 267                 vortex_mix_killinput(vortex, mix, channel);
 268 }
 269
 270 static int
 271 vortex_mixer_addWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
 272 {
 273         int temp, lifeboat = 0, prev;
 274
 275         temp = hwread(vortex->mmio, VORTEX_MIXER_SR);
 276         if ((temp & (1 << ch)) == 0) {
 277                 hwwrite(vortex->mmio, VORTEX_MIXER_CHNBASE + (ch << 2), mix);
 278                 vortex_mixer_en_sr(vortex, ch);
 279                 return 1;
 280         }
 281         prev = VORTEX_MIXER_CHNBASE + (ch << 2);
 282         temp = hwread(vortex->mmio, prev);
 283         while (temp & 0x10) {
 284                 prev = VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2);
 285                 temp = hwread(vortex->mmio, prev);
 286                 //printk(KERN_INFO "vortex: mixAddWTD: while addr=%x, val=%x\n", prev, temp);
 287                 if ((++lifeboat) > 0xf) {
 288                         printk(KERN_ERR
 289                                "vortex_mixer_addWTD: lifeboat overflow\n");
 290                         return 0;
 291                 }
 292         }
 293         hwwrite(vortex->mmio, VORTEX_MIXER_RTBASE + ((temp & 0xf) << 2), mix);
 294         hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
 295         return 1;
 296 }
 297
 298 static int
 299 vortex_mixer_delWTD(vortex_t * vortex, unsigned char mix, unsigned char ch)
 300 {
 301         int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
 302         //int esp1f=edi(while)=src, esp10=ch;
 303
 304         eax = hwread(vortex->mmio, VORTEX_MIXER_SR);
 305         if (((1 << ch) & eax) == 0) {
 306                 printk(KERN_ERR "mix ALARM %x\n", eax);
 307                 return 0;
 308         }
 309         ebp = VORTEX_MIXER_CHNBASE + (ch << 2);
 310         esp18 = hwread(vortex->mmio, ebp);
 311         if (esp18 & 0x10) {
 312                 ebx = (esp18 & 0xf);
 313                 if (mix == ebx) {
 314                         ebx = VORTEX_MIXER_RTBASE + (mix << 2);
 315                         edx = hwread(vortex->mmio, ebx);
 316                         //7b60
 317                         hwwrite(vortex->mmio, ebp, edx);
 318                         hwwrite(vortex->mmio, ebx, 0);
 319                 } else {
 320                         //7ad3
 321                         edx =
 322                             hwread(vortex->mmio,
 323                                    VORTEX_MIXER_RTBASE + (ebx << 2));
 324                         //printk(KERN_INFO "vortex: mixdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
 325                         while ((edx & 0xf) != mix) {
 326                                 if ((esi) > 0xf) {
 327                                         printk(KERN_ERR
 328                                                "vortex: mixdelWTD: error lifeboat overflow\n");
 329                                         return 0;
 330                                 }
 331                                 esp14 = ebx;
 332                                 ebx = edx & 0xf;
 333                                 ebp = ebx << 2;
 334                                 edx =
 335                                     hwread(vortex->mmio,
 336                                            VORTEX_MIXER_RTBASE + ebp);
 337                                 //printk(KERN_INFO "vortex: mixdelWTD: while addr=%x, val=%x\n", ebp, edx);
 338                                 esi++;
 339                         }
 340                         //7b30
 341                         ebp = ebx << 2;
 342                         if (edx & 0x10) {       /* Delete entry in between others */
 343                                 ebx = VORTEX_MIXER_RTBASE + ((edx & 0xf) << 2);
 344                                 edx = hwread(vortex->mmio, ebx);
 345                                 //7b60
 346                                 hwwrite(vortex->mmio,
 347                                         VORTEX_MIXER_RTBASE + ebp, edx);
 348                                 hwwrite(vortex->mmio, ebx, 0);
 349                                 //printk(KERN_INFO "vortex mixdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
 350                         } else {        /* Delete last entry */
 351                                 //7b83
 352                                 if (esp14 == -1)
 353                                         hwwrite(vortex->mmio,
 354                                                 VORTEX_MIXER_CHNBASE +
 355                                                 (ch << 2), esp18 & 0xef);
 356                                 else {
 357                                         ebx = (0xffffffe0 & edx) | (0xf & ebx);
 358                                         hwwrite(vortex->mmio,
 359                                                 VORTEX_MIXER_RTBASE +
 360                                                 (esp14 << 2), ebx);
 361                                         //printk(KERN_INFO "vortex mixdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
 362                                 }
 363                                 hwwrite(vortex->mmio,
 364                                         VORTEX_MIXER_RTBASE + ebp, 0);
 365                                 return 1;
 366                         }
 367                 }
 368         } else {
 369                 //printk(KERN_INFO "removed last mix\n");
 370                 //7be0
 371                 vortex_mixer_dis_sr(vortex, ch);
 372                 hwwrite(vortex->mmio, ebp, 0);
 373         }
 374         return 1;
 375 }
 376
 377 static void vortex_mixer_init(vortex_t * vortex)
 378 {
 379         unsigned long addr;
 380         int x;
 381
 382         // FIXME: get rid of this crap.
 383         memset(mchannels, 0, NR_MIXOUT * sizeof(int));
 384         memset(rampchs, 0, NR_MIXOUT * sizeof(int));
 385
 386         addr = VORTEX_MIX_SMP + 0x17c;
 387         for (x = 0x5f; x >= 0; x--) {
 388                 hwwrite(vortex->mmio, addr, 0);
 389                 addr -= 4;
 390         }
 391         addr = VORTEX_MIX_ENIN + 0x1fc;
 392         for (x = 0x7f; x >= 0; x--) {
 393                 hwwrite(vortex->mmio, addr, 0);
 394                 addr -= 4;
 395         }
 396         addr = VORTEX_MIX_SMP + 0x17c;
 397         for (x = 0x5f; x >= 0; x--) {
 398                 hwwrite(vortex->mmio, addr, 0);
 399                 addr -= 4;
 400         }
 401         addr = VORTEX_MIX_INVOL_A + 0x7fc;
 402         for (x = 0x1ff; x >= 0; x--) {
 403                 hwwrite(vortex->mmio, addr, 0x80);
 404                 addr -= 4;
 405         }
 406         addr = VORTEX_MIX_VOL_A + 0x3c;
 407         for (x = 0xf; x >= 0; x--) {
 408                 hwwrite(vortex->mmio, addr, 0x80);
 409                 addr -= 4;
 410         }
 411         addr = VORTEX_MIX_INVOL_B + 0x7fc;
 412         for (x = 0x1ff; x >= 0; x--) {
 413                 hwwrite(vortex->mmio, addr, 0x80);
 414                 addr -= 4;
 415         }
 416         addr = VORTEX_MIX_VOL_B + 0x3c;
 417         for (x = 0xf; x >= 0; x--) {
 418                 hwwrite(vortex->mmio, addr, 0x80);
 419                 addr -= 4;
 420         }
 421         addr = VORTEX_MIXER_RTBASE + (MIXER_RTBASE_SIZE - 1) * 4;
 422         for (x = (MIXER_RTBASE_SIZE - 1); x >= 0; x--) {
 423                 hwwrite(vortex->mmio, addr, 0x0);
 424                 addr -= 4;
 425         }
 426         hwwrite(vortex->mmio, VORTEX_MIXER_SR, 0);
 427
 428         /* Set clipping ceiling (this may be all wrong). */
 429         /*
 430         for (x = 0; x > 0x80; x++) {
 431                 hwwrite(vortex->mmio, VORTEX_MIXER_CLIP + (x << 2), 0x3ffff);
 432         }
 433         */
 434         /*
 435            call CAsp4Mix__Initialize_CAsp4HwIO____CAsp4Mixer____
 436            Register ISR callback for volume smooth fade out.
 437            Maybe this avoids clicks when press "stop" ?
 438          */
 439 }
 440
 441 /*  SRC (CAsp4Src.s and CAsp4SrcBlock) */
 442
 443 static void vortex_src_en_sr(vortex_t * vortex, int channel)
 444 {
 445         hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
 446                 hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) | (0x1 << channel));
 447 }
 448
 449 static void vortex_src_dis_sr(vortex_t * vortex, int channel)
 450 {
 451         hwwrite(vortex->mmio, VORTEX_SRCBLOCK_SR,
 452                 hwread(vortex->mmio, VORTEX_SRCBLOCK_SR) & ~(0x1 << channel));
 453 }
 454
 455 static void vortex_src_flushbuffers(vortex_t * vortex, unsigned char src)
 456 {
 457         int i;
 458
 459         for (i = 0x1f; i >= 0; i--)
 460                 hwwrite(vortex->mmio,
 461                         VORTEX_SRC_DATA0 + (src << 7) + (i << 2), 0);
 462         hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3), 0);
 463         hwwrite(vortex->mmio, VORTEX_SRC_DATA + (src << 3) + 4, 0);
 464 }
 465
 466 static void vortex_src_cleardrift(vortex_t * vortex, unsigned char src)
 467 {
 468         hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
 469         hwwrite(vortex->mmio, VORTEX_SRC_DRIFT1 + (src << 2), 0);
 470         hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
 471 }
 472
 473 static void
 474 vortex_src_set_throttlesource(vortex_t * vortex, unsigned char src, int en)
 475 {
 476         int temp;
 477
 478         temp = hwread(vortex->mmio, VORTEX_SRC_SOURCE);
 479         if (en)
 480                 temp |= 1 << src;
 481         else
 482                 temp &= ~(1 << src);
 483         hwwrite(vortex->mmio, VORTEX_SRC_SOURCE, temp);
 484 }
 485
 486 static int
 487 vortex_src_persist_convratio(vortex_t * vortex, unsigned char src, int ratio)
 488 {
 489         int temp, lifeboat = 0;
 490
 491         do {
 492                 hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), ratio);
 493                 temp = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
 494                 if ((++lifeboat) > 0x9) {
 495                         printk(KERN_ERR "Vortex: Src cvr fail\n");
 496                         break;
 497                 }
 498         }
 499         while (temp != ratio);
 500         return temp;
 501 }
 502
 503 #if 0
 504 static void vortex_src_slowlock(vortex_t * vortex, unsigned char src)
 505 {
 506         int temp;
 507
 508         hwwrite(vortex->mmio, VORTEX_SRC_DRIFT2 + (src << 2), 1);
 509         hwwrite(vortex->mmio, VORTEX_SRC_DRIFT0 + (src << 2), 0);
 510         temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
 511         if (temp & 0x200)
 512                 hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
 513                         temp & ~0x200L);
 514 }
 515
 516 static void
 517 vortex_src_change_convratio(vortex_t * vortex, unsigned char src, int ratio)
 518 {
 519         int temp, a;
 520
 521         if ((ratio & 0x10000) && (ratio != 0x10000)) {
 522                 if (ratio & 0x3fff)
 523                         a = (0x11 - ((ratio >> 0xe) & 0x3)) - 1;
 524                 else
 525                         a = (0x11 - ((ratio >> 0xe) & 0x3)) - 2;
 526         } else
 527                 a = 0xc;
 528         temp = hwread(vortex->mmio, VORTEX_SRC_U0 + (src << 2));
 529         if (((temp >> 4) & 0xf) != a)
 530                 hwwrite(vortex->mmio, VORTEX_SRC_U0 + (src << 2),
 531                         (temp & 0xf) | ((a & 0xf) << 4));
 532
 533         vortex_src_persist_convratio(vortex, src, ratio);
 534 }
 535
 536 static int
 537 vortex_src_checkratio(vortex_t * vortex, unsigned char src,
 538                       unsigned int desired_ratio)
 539 {
 540         int hw_ratio, lifeboat = 0;
 541
 542         hw_ratio = hwread(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2));
 543
 544         while (hw_ratio != desired_ratio) {
 545                 hwwrite(vortex->mmio, VORTEX_SRC_CONVRATIO + (src << 2), desired_ratio);
 546
 547                 if ((lifeboat++) > 15) {
 548                         printk(KERN_ERR "Vortex: could not set src-%d from %d to %d\n",
 549                                src, hw_ratio, desired_ratio);
 550                         break;
 551                 }
 552         }
 553
 554         return hw_ratio;
 555 }
 556
 557 #endif
 558 /*
 559  Objective: Set samplerate for given SRC module.
 560  Arguments:
 561         card:   pointer to vortex_t strcut.
 562         src:    Integer index of the SRC module.
 563         cr:             Current sample rate conversion factor.
 564         b:              unknown 16 bit value.
 565         sweep:  Enable Samplerate fade from cr toward tr flag.
 566         dirplay: 1: playback, 0: recording.
 567         sl:             Slow Lock flag.
 568         tr:             Target samplerate conversion.
 569         thsource: Throttle source flag (no idea what that means).
 570 */
 571 static void vortex_src_setupchannel(vortex_t * card, unsigned char src,
 572                         unsigned int cr, unsigned int b, int sweep, int d,
 573                         int dirplay, int sl, unsigned int tr, int thsource)
 574 {
 575         // noplayback: d=2,4,7,0xa,0xb when using first 2 src's.
 576         // c: enables pitch sweep.
 577         // looks like g is c related. Maybe g is a sweep parameter ?
 578         // g = cvr
 579         // dirplay: 0 = recording, 1 = playback
 580         // d = src hw index.
 581
 582         int esi, ebp = 0, esp10;
 583
 584         vortex_src_flushbuffers(card, src);
 585
 586         if (sweep) {
 587                 if ((tr & 0x10000) && (tr != 0x10000)) {
 588                         tr = 0;
 589                         esi = 0x7;
 590                 } else {
 591                         if ((((short)tr) < 0) && (tr != 0x8000)) {
 592                                 tr = 0;
 593                                 esi = 0x8;
 594                         } else {
 595                                 tr = 1;
 596                                 esi = 0xc;
 597                         }
 598                 }
 599         } else {
 600                 if ((cr & 0x10000) && (cr != 0x10000)) {
 601                         tr = 0; /*ebx = 0 */
 602                         esi = 0x11 - ((cr >> 0xe) & 7);
 603                         if (cr & 0x3fff)
 604                                 esi -= 1;
 605                         else
 606                                 esi -= 2;
 607                 } else {
 608                         tr = 1;
 609                         esi = 0xc;
 610                 }
 611         }
 612         vortex_src_cleardrift(card, src);
 613         vortex_src_set_throttlesource(card, src, thsource);
 614
 615         if ((dirplay == 0) && (sweep == 0)) {
 616                 if (tr)
 617                         esp10 = 0xf;
 618                 else
 619                         esp10 = 0xc;
 620                 ebp = 0;
 621         } else {
 622                 if (tr)
 623                         ebp = 0xf;
 624                 else
 625                         ebp = 0xc;
 626                 esp10 = 0;
 627         }
 628         hwwrite(card->mmio, VORTEX_SRC_U0 + (src << 2),
 629                 (sl << 0x9) | (sweep << 0x8) | ((esi & 0xf) << 4) | d);
 630         /* 0xc0   esi=0xc c=f=0 d=0 */
 631         vortex_src_persist_convratio(card, src, cr);
 632         hwwrite(card->mmio, VORTEX_SRC_U1 + (src << 2), b & 0xffff);
 633         /* 0   b=0 */
 634         hwwrite(card->mmio, VORTEX_SRC_U2 + (src << 2),
 635                 (tr << 0x11) | (dirplay << 0x10) | (ebp << 0x8) | esp10);
 636         /* 0x30f00 e=g=1 esp10=0 ebp=f */
 637         //printk(KERN_INFO "vortex: SRC %d, d=0x%x, esi=0x%x, esp10=0x%x, ebp=0x%x\n", src, d, esi, esp10, ebp);
 638 }
 639
 640 static void vortex_srcblock_init(vortex_t * vortex)
 641 {
 642         unsigned long addr;
 643         int x;
 644         hwwrite(vortex->mmio, VORTEX_SRC_SOURCESIZE, 0x1ff);
 645         /*
 646            for (x=0; x<0x10; x++) {
 647            vortex_src_init(&vortex_src[x], x);
 648            }
 649          */
 650         //addr = 0xcc3c;
 651         //addr = 0x26c3c;
 652         addr = VORTEX_SRC_RTBASE + 0x3c;
 653         for (x = 0xf; x >= 0; x--) {
 654                 hwwrite(vortex->mmio, addr, 0);
 655                 addr -= 4;
 656         }
 657         //addr = 0xcc94;
 658         //addr = 0x26c94;
 659         addr = VORTEX_SRC_CHNBASE + 0x54;
 660         for (x = 0x15; x >= 0; x--) {
 661                 hwwrite(vortex->mmio, addr, 0);
 662                 addr -= 4;
 663         }
 664 }
 665
 666 static int
 667 vortex_src_addWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
 668 {
 669         int temp, lifeboat = 0, prev;
 670         // esp13 = src
 671
 672         temp = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
 673         if ((temp & (1 << ch)) == 0) {
 674                 hwwrite(vortex->mmio, VORTEX_SRC_CHNBASE + (ch << 2), src);
 675                 vortex_src_en_sr(vortex, ch);
 676                 return 1;
 677         }
 678         prev = VORTEX_SRC_CHNBASE + (ch << 2);  /*ebp */
 679         temp = hwread(vortex->mmio, prev);
 680         //while (temp & NR_SRC) {
 681         while (temp & 0x10) {
 682                 prev = VORTEX_SRC_RTBASE + ((temp & 0xf) << 2); /*esp12 */
 683                 //prev = VORTEX_SRC_RTBASE + ((temp & (NR_SRC-1)) << 2); /*esp12*/
 684                 temp = hwread(vortex->mmio, prev);
 685                 //printk(KERN_INFO "vortex: srcAddWTD: while addr=%x, val=%x\n", prev, temp);
 686                 if ((++lifeboat) > 0xf) {
 687                         printk(KERN_ERR
 688                                "vortex_src_addWTD: lifeboat overflow\n");
 689                         return 0;
 690                 }
 691         }
 692         hwwrite(vortex->mmio, VORTEX_SRC_RTBASE + ((temp & 0xf) << 2), src);
 693         //hwwrite(vortex->mmio, prev, (temp & (NR_SRC-1)) | NR_SRC);
 694         hwwrite(vortex->mmio, prev, (temp & 0xf) | 0x10);
 695         return 1;
 696 }
 697
 698 static int
 699 vortex_src_delWTD(vortex_t * vortex, unsigned char src, unsigned char ch)
 700 {
 701         int esp14 = -1, esp18, eax, ebx, edx, ebp, esi = 0;
 702         //int esp1f=edi(while)=src, esp10=ch;
 703
 704         eax = hwread(vortex->mmio, VORTEX_SRCBLOCK_SR);
 705         if (((1 << ch) & eax) == 0) {
 706                 printk(KERN_ERR "src alarm\n");
 707                 return 0;
 708         }
 709         ebp = VORTEX_SRC_CHNBASE + (ch << 2);
 710         esp18 = hwread(vortex->mmio, ebp);
 711         if (esp18 & 0x10) {
 712                 ebx = (esp18 & 0xf);
 713                 if (src == ebx) {
 714                         ebx = VORTEX_SRC_RTBASE + (src << 2);
 715                         edx = hwread(vortex->mmio, ebx);
 716                         //7b60
 717                         hwwrite(vortex->mmio, ebp, edx);
 718                         hwwrite(vortex->mmio, ebx, 0);
 719                 } else {
 720                         //7ad3
 721                         edx =
 722                             hwread(vortex->mmio,
 723                                    VORTEX_SRC_RTBASE + (ebx << 2));
 724                         //printk(KERN_INFO "vortex: srcdelWTD: 1 addr=%x, val=%x, src=%x\n", ebx, edx, src);
 725                         while ((edx & 0xf) != src) {
 726                                 if ((esi) > 0xf) {
 727                                         printk
 728                                             ("vortex: srcdelWTD: error, lifeboat overflow\n");
 729                                         return 0;
 730                                 }
 731                                 esp14 = ebx;
 732                                 ebx = edx & 0xf;
 733                                 ebp = ebx << 2;
 734                                 edx =
 735                                     hwread(vortex->mmio,
 736                                            VORTEX_SRC_RTBASE + ebp);
 737                                 //printk(KERN_INFO "vortex: srcdelWTD: while addr=%x, val=%x\n", ebp, edx);
 738                                 esi++;
 739                         }
 740                         //7b30
 741                         ebp = ebx << 2;
 742                         if (edx & 0x10) {       /* Delete entry in between others */
 743                                 ebx = VORTEX_SRC_RTBASE + ((edx & 0xf) << 2);
 744                                 edx = hwread(vortex->mmio, ebx);
 745                                 //7b60
 746                                 hwwrite(vortex->mmio,
 747                                         VORTEX_SRC_RTBASE + ebp, edx);
 748                                 hwwrite(vortex->mmio, ebx, 0);
 749                                 //printk(KERN_INFO "vortex srcdelWTD between addr= 0x%x, val= 0x%x\n", ebp, edx);
 750                         } else {        /* Delete last entry */
 751                                 //7b83
 752                                 if (esp14 == -1)
 753                                         hwwrite(vortex->mmio,
 754                                                 VORTEX_SRC_CHNBASE +
 755                                                 (ch << 2), esp18 & 0xef);
 756                                 else {
 757                                         ebx = (0xffffffe0 & edx) | (0xf & ebx);
 758                                         hwwrite(vortex->mmio,
 759                                                 VORTEX_SRC_RTBASE +
 760                                                 (esp14 << 2), ebx);
 761                                         //printk(KERN_INFO"vortex srcdelWTD last addr= 0x%x, val= 0x%x\n", esp14, ebx);
 762                                 }
 763                                 hwwrite(vortex->mmio,
 764                                         VORTEX_SRC_RTBASE + ebp, 0);
 765                                 return 1;
 766                         }
 767                 }
 768         } else {
 769                 //7be0
 770                 vortex_src_dis_sr(vortex, ch);
 771                 hwwrite(vortex->mmio, ebp, 0);
 772         }
 773         return 1;
 774 }
 775
 776  /*FIFO*/
 777
 778 static void
 779 vortex_fifo_clearadbdata(vortex_t * vortex, int fifo, int x)
 780 {
 781         for (x--; x >= 0; x--)
 782                 hwwrite(vortex->mmio,
 783                         VORTEX_FIFO_ADBDATA +
 784                         (((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
 785 }
 786
 787 #if 0
 788 static void vortex_fifo_adbinitialize(vortex_t * vortex, int fifo, int j)
 789 {
 790         vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
 791 #ifdef CHIP_AU8820
 792         hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
 793                 (FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
 794 #else
 795         hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
 796                 (FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
 797 #endif
 798 }
 799 #endif
 800 static void vortex_fifo_setadbvalid(vortex_t * vortex, int fifo, int en)
 801 {
 802         hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2),
 803                 (hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2)) &
 804                  0xffffffef) | ((1 & en) << 4) | FIFO_U1);
 805 }
 806
 807 static void
 808 vortex_fifo_setadbctrl(vortex_t * vortex, int fifo, int b, int priority,
 809                        int empty, int valid, int f)
 810 {
 811         int temp, lifeboat = 0;
 812         //int this_8[NR_ADB] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; /* position */
 813         int this_4 = 0x2;
 814         /* f seems priority related.
 815          * CAsp4AdbDma::SetPriority is the only place that calls SetAdbCtrl with f set to 1
 816          * every where else it is set to 0. It seems, however, that CAsp4AdbDma::SetPriority
 817          * is never called, thus the f related bits remain a mystery for now.
 818          */
 819         do {
 820                 temp = hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
 821                 if (lifeboat++ > 0xbb8) {
 822                         printk(KERN_ERR
 823                                "Vortex: vortex_fifo_setadbctrl fail\n");
 824                         break;
 825                 }
 826         }
 827         while (temp & FIFO_RDONLY);
 828
 829         // AU8830 semes to take some special care about fifo content (data).
 830         // But i'm just to lazy to translate that :)
 831         if (valid) {
 832                 if ((temp & FIFO_VALID) == 0) {
 833                         //this_8[fifo] = 0;
 834                         vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);      // this_4
 835 #ifdef CHIP_AU8820
 836                         temp = (this_4 & 0x1f) << 0xb;
 837 #else
 838                         temp = (this_4 & 0x3f) << 0xc;
 839 #endif
 840                         temp = (temp & 0xfffffffd) | ((b & 1) << 1);
 841                         temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
 842                         temp = (temp & 0xffffffef) | ((valid & 1) << 4);
 843                         temp |= FIFO_U1;
 844                         temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
 845 #ifdef CHIP_AU8820
 846                         temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
 847 #endif
 848 #ifdef CHIP_AU8830
 849                         temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
 850                         temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
 851 #endif
 852 #ifdef CHIP_AU8810
 853                         temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
 854                         temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
 855 #endif
 856                 }
 857         } else {
 858                 if (temp & FIFO_VALID) {
 859 #ifdef CHIP_AU8820
 860                         temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
 861 #endif
 862 #ifdef CHIP_AU8830
 863                         temp =
 864                             ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
 865 #endif
 866 #ifdef CHIP_AU8810
 867                         temp =
 868                             ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
 869 #endif
 870                 } else
 871                         /*if (this_8[fifo]) */
 872                         vortex_fifo_clearadbdata(vortex, fifo, FIFO_SIZE);
 873         }
 874         hwwrite(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2), temp);
 875         hwread(vortex->mmio, VORTEX_FIFO_ADBCTRL + (fifo << 2));
 876 }
 877
 878 #ifndef CHIP_AU8810
 879 static void vortex_fifo_clearwtdata(vortex_t * vortex, int fifo, int x)
 880 {
 881         if (x < 1)
 882                 return;
 883         for (x--; x >= 0; x--)
 884                 hwwrite(vortex->mmio,
 885                         VORTEX_FIFO_WTDATA +
 886                         (((fifo << FIFO_SIZE_BITS) + x) << 2), 0);
 887 }
 888
 889 static void vortex_fifo_wtinitialize(vortex_t * vortex, int fifo, int j)
 890 {
 891         vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
 892 #ifdef CHIP_AU8820
 893         hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
 894                 (FIFO_U1 | ((j & FIFO_MASK) << 0xb)));
 895 #else
 896         hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
 897                 (FIFO_U1 | ((j & FIFO_MASK) << 0xc)));
 898 #endif
 899 }
 900
 901 static void vortex_fifo_setwtvalid(vortex_t * vortex, int fifo, int en)
 902 {
 903         hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2),
 904                 (hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2)) &
 905                  0xffffffef) | ((en & 1) << 4) | FIFO_U1);
 906 }
 907
 908 static void
 909 vortex_fifo_setwtctrl(vortex_t * vortex, int fifo, int ctrl, int priority,
 910                       int empty, int valid, int f)
 911 {
 912         int temp = 0, lifeboat = 0;
 913         int this_4 = 2;
 914
 915         do {
 916                 temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
 917                 if (lifeboat++ > 0xbb8) {
 918                         printk(KERN_ERR "Vortex: vortex_fifo_setwtctrl fail\n");
 919                         break;
 920                 }
 921         }
 922         while (temp & FIFO_RDONLY);
 923
 924         if (valid) {
 925                 if ((temp & FIFO_VALID) == 0) {
 926                         vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);       // this_4
 927 #ifdef CHIP_AU8820
 928                         temp = (this_4 & 0x1f) << 0xb;
 929 #else
 930                         temp = (this_4 & 0x3f) << 0xc;
 931 #endif
 932                         temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
 933                         temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
 934                         temp = (temp & 0xffffffef) | ((valid & 1) << 4);
 935                         temp |= FIFO_U1;
 936                         temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
 937 #ifdef CHIP_AU8820
 938                         temp = (temp & 0xfffbffff) | ((f & 1) << 0x12);
 939 #endif
 940 #ifdef CHIP_AU8830
 941                         temp = (temp & 0xf7ffffff) | ((f & 1) << 0x1b);
 942                         temp = (temp & 0xefffffff) | ((f & 1) << 0x1c);
 943 #endif
 944 #ifdef CHIP_AU8810
 945                         temp = (temp & 0xfeffffff) | ((f & 1) << 0x18);
 946                         temp = (temp & 0xfdffffff) | ((f & 1) << 0x19);
 947 #endif
 948                 }
 949         } else {
 950                 if (temp & FIFO_VALID) {
 951 #ifdef CHIP_AU8820
 952                         temp = ((f & 1) << 0x12) | (temp & 0xfffbffef);
 953 #endif
 954 #ifdef CHIP_AU8830
 955                         temp =
 956                             ((f & 1) << 0x1b) | (temp & 0xe7ffffef) | FIFO_BITS;
 957 #endif
 958 #ifdef CHIP_AU8810
 959                         temp =
 960                             ((f & 1) << 0x18) | (temp & 0xfcffffef) | FIFO_BITS;
 961 #endif
 962                 } else
 963                         /*if (this_8[fifo]) */
 964                         vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
 965         }
 966         hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
 967         hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
 968
 969 /*
 970     do {
 971                 temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
 972                 if (lifeboat++ > 0xbb8) {
 973                         printk(KERN_ERR "Vortex: vortex_fifo_setwtctrl fail (hanging)\n");
 974                         break;
 975                 }
 976     } while ((temp & FIFO_RDONLY)&&(temp & FIFO_VALID)&&(temp != 0xFFFFFFFF));
 977
 978
 979         if (valid) {
 980                 if (temp & FIFO_VALID) {
 981                         temp = 0x40000;
 982                         //temp |= 0x08000000;
 983                         //temp |= 0x10000000;
 984                         //temp |= 0x04000000;
 985                         //temp |= 0x00400000;
 986                         temp |= 0x1c400000;
 987                         temp &= 0xFFFFFFF3;
 988                         temp &= 0xFFFFFFEF;
 989                         temp |= (valid & 1) << 4;
 990                         hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
 991                         return;
 992                 } else {
 993                         vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
 994                         return;
 995                 }
 996         } else {
 997                 temp &= 0xffffffef;
 998                 temp |= 0x08000000;
 999                 temp |= 0x10000000;
1000                 temp |= 0x04000000;
1001                 temp |= 0x00400000;
1002                 hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1003                 temp = hwread(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2));
1004                 //((temp >> 6) & 0x3f)
1005
1006                 priority = 0;
1007                 if (((temp & 0x0fc0) ^ ((temp >> 6) & 0x0fc0)) & 0FFFFFFC0)
1008                         vortex_fifo_clearwtdata(vortex, fifo, FIFO_SIZE);
1009                 valid = 0xfb;
1010                 temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1011                 temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1012                 temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1013                 temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1014                 temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1015                 hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1016         }
1017
1018         */
1019
1020         /*
1021            temp = (temp & 0xfffffffd) | ((ctrl & 1) << 1);
1022            temp = (temp & 0xfffdffff) | ((f & 1) << 0x11);
1023            temp = (temp & 0xfffffff3) | ((priority & 3) << 2);
1024            temp = (temp & 0xffffffef) | ((valid & 1) << 4);
1025            temp = (temp & 0xffffffdf) | ((empty & 1) << 5);
1026            #ifdef FIFO_BITS
1027            temp = temp | FIFO_BITS | 40000;
1028            #endif
1029            // 0x1c440010, 0x1c400000
1030            hwwrite(vortex->mmio, VORTEX_FIFO_WTCTRL + (fifo << 2), temp);
1031          */
1032 }
1033
1034 #endif
1035 static void vortex_fifo_init(vortex_t * vortex)
1036 {
1037         int x;
1038         unsigned long addr;
1039
1040         /* ADB DMA channels fifos. */
1041         addr = VORTEX_FIFO_ADBCTRL + ((NR_ADB - 1) * 4);
1042         for (x = NR_ADB - 1; x >= 0; x--) {
1043                 hwwrite(vortex->mmio, addr, (FIFO_U0 | FIFO_U1));
1044                 if (hwread(vortex->mmio, addr) != (FIFO_U0 | FIFO_U1))
1045                         printk(KERN_ERR "bad adb fifo reset!");
1046                 vortex_fifo_clearadbdata(vortex, x, FIFO_SIZE);
1047                 addr -= 4;
1048         }
1049
1050 #ifndef CHIP_AU8810
1051         /* WT DMA channels fifos. */
1052         addr = VORTEX_FIFO_WTCTRL + ((NR_WT - 1) * 4);
1053         for (x = NR_WT - 1; x >= 0; x--) {
1054                 hwwrite(vortex->mmio, addr, FIFO_U0);
1055                 if (hwread(vortex->mmio, addr) != FIFO_U0)
1056                         printk(KERN_ERR
1057                                "bad wt fifo reset (0x%08lx, 0x%08x)!\n",
1058                                addr, hwread(vortex->mmio, addr));
1059                 vortex_fifo_clearwtdata(vortex, x, FIFO_SIZE);
1060                 addr -= 4;
1061         }
1062 #endif
1063         /* trigger... */
1064 #ifdef CHIP_AU8820
1065         hwwrite(vortex->mmio, 0xf8c0, 0xd03);   //0x0843 0xd6b
1066 #else
1067 #ifdef CHIP_AU8830
1068         hwwrite(vortex->mmio, 0x17000, 0x61);   /* wt a */
1069         hwwrite(vortex->mmio, 0x17004, 0x61);   /* wt b */
1070 #endif
1071         hwwrite(vortex->mmio, 0x17008, 0x61);   /* adb */
1072 #endif
1073 }
1074
1075 /* ADBDMA */
1076
1077 static void vortex_adbdma_init(vortex_t * vortex)
1078 {
1079 }
1080
1081 static void vortex_adbdma_setfirstbuffer(vortex_t * vortex, int adbdma)
1082 {
1083         stream_t *dma = &vortex->dma_adb[adbdma];
1084
1085         hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1086                 dma->dma_ctrl);
1087 }
1088
1089 static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb)
1090 {
1091         stream_t *dma = &vortex->dma_adb[adbdma];
1092         //hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2), sb << (((NR_ADB-1)-((adbdma&0xf)*2))));
1093         hwwrite(vortex->mmio, VORTEX_ADBDMA_START + (adbdma << 2),
1094                 sb << ((0xf - (adbdma & 0xf)) * 2));
1095         dma->period_real = dma->period_virt = sb;
1096 }
1097
1098 static void
1099 vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
1100                          struct snd_sg_buf * sgbuf, int psize, int count)
1101 {
1102         stream_t *dma = &vortex->dma_adb[adbdma];
1103
1104         if (sgbuf == NULL) {
1105                 printk(KERN_INFO "vortex: FATAL: sgbuf is NULL!\n");
1106                 return;
1107         }
1108         //printk(KERN_INFO "vortex: page count = %d, tblcount = %d\n", count, sgbuf->tblsize);
1109
1110         dma->period_bytes = psize;
1111         dma->nr_periods = count;
1112         dma->sgbuf = sgbuf;
1113
1114         dma->cfg0 = 0;
1115         dma->cfg1 = 0;
1116         switch (count) {
1117                 /* Four or more pages */
1118         default:
1119         case 4:
1120                 dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize - 1);
1121                 hwwrite(vortex->mmio,
1122                         VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0xc,
1123                         snd_sgbuf_get_addr(sgbuf, psize * 3));
1124                 /* 3 pages */
1125         case 3:
1126                 dma->cfg0 |= 0x12000000;
1127                 dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1128                 hwwrite(vortex->mmio,
1129                         VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x8,
1130                         snd_sgbuf_get_addr(sgbuf, psize * 2));
1131                 /* 2 pages */
1132         case 2:
1133                 dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize - 1);
1134                 hwwrite(vortex->mmio,
1135                         VORTEX_ADBDMA_BUFBASE + (adbdma << 4) + 0x4,
1136                         snd_sgbuf_get_addr(sgbuf, psize));
1137                 /* 1 page */
1138         case 1:
1139                 dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize - 1) << 0xc);
1140                 hwwrite(vortex->mmio,
1141                         VORTEX_ADBDMA_BUFBASE + (adbdma << 4),
1142                         snd_sgbuf_get_addr(sgbuf, 0));
1143                 break;
1144         }
1145         //printk("vortex: cfg0 = 0x%x\nvortex: cfg1=0x%x\n", dma->cfg0, dma->cfg1);
1146         hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG0 + (adbdma << 3), dma->cfg0);
1147         hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFCFG1 + (adbdma << 3), dma->cfg1);
1148
1149         vortex_adbdma_setfirstbuffer(vortex, adbdma);
1150         vortex_adbdma_setstartbuffer(vortex, adbdma, 0);
1151 }
1152
1153 static void
1154 vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie, int dir,
1155                       int fmt, int d, unsigned long offset)
1156 {
1157         stream_t *dma = &vortex->dma_adb[adbdma];
1158
1159         dma->dma_unknown = d;
1160         dma->dma_ctrl =
1161             ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1162         /* Enable PCMOUT interrupts. */
1163         dma->dma_ctrl =
1164             (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1165
1166         dma->dma_ctrl =
1167             (dma->dma_ctrl & ~DIR_MASK) | ((dir << DIR_SHIFT) & DIR_MASK);
1168         dma->dma_ctrl =
1169             (dma->dma_ctrl & ~FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1170
1171         hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1172                 dma->dma_ctrl);
1173         hwread(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2));
1174 }
1175
1176 static int vortex_adbdma_bufshift(vortex_t * vortex, int adbdma)
1177 {
1178         stream_t *dma = &vortex->dma_adb[adbdma];
1179         int page, p, pp, delta, i;
1180
1181         page =
1182             (hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2)) &
1183              ADB_SUBBUF_MASK) >> ADB_SUBBUF_SHIFT;
1184         if (dma->nr_periods >= 4)
1185                 delta = (page - dma->period_real) & 3;
1186         else {
1187                 delta = (page - dma->period_real);
1188                 if (delta < 0)
1189                         delta += dma->nr_periods;
1190         }
1191         if (delta == 0)
1192                 return 0;
1193
1194         /* refresh hw page table */
1195         if (dma->nr_periods > 4) {
1196                 for (i = 0; i < delta; i++) {
1197                         /* p: audio buffer page index */
1198                         p = dma->period_virt + i + 4;
1199                         if (p >= dma->nr_periods)
1200                                 p -= dma->nr_periods;
1201                         /* pp: hardware DMA page index. */
1202                         pp = dma->period_real + i;
1203                         if (pp >= 4)
1204                                 pp -= 4;
1205                         //hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), dma->table[p].addr);
1206                         hwwrite(vortex->mmio,
1207                                 VORTEX_ADBDMA_BUFBASE + (((adbdma << 2) + pp) << 2),
1208                                 snd_sgbuf_get_addr(dma->sgbuf,
1209                                 dma->period_bytes * p));
1210                         /* Force write thru cache. */
1211                         hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE +
1212                                (((adbdma << 2) + pp) << 2));
1213                 }
1214         }
1215         dma->period_virt += delta;
1216         dma->period_real = page;
1217         if (dma->period_virt >= dma->nr_periods)
1218                 dma->period_virt -= dma->nr_periods;
1219         if (delta != 1)
1220                 printk(KERN_INFO "vortex: %d virt=%d, real=%d, delta=%d\n",
1221                        adbdma, dma->period_virt, dma->period_real, delta);
1222
1223         return delta;
1224 }
1225
1226
1227 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma) {
1228         stream_t *dma = &vortex->dma_adb[adbdma];
1229         int p, pp, i;
1230
1231         /* refresh hw page table */
1232         for (i=0 ; i < 4 && i < dma->nr_periods; i++) {
1233                 /* p: audio buffer page index */
1234                 p = dma->period_virt + i;
1235                 if (p >= dma->nr_periods)
1236                         p -= dma->nr_periods;
1237                 /* pp: hardware DMA page index. */
1238                 pp = dma->period_real + i;
1239                 if (dma->nr_periods < 4) {
1240                         if (pp >= dma->nr_periods)
1241                                 pp -= dma->nr_periods;
1242                 }
1243                 else {
1244                         if (pp >= 4)
1245                                 pp -= 4;
1246                 }
1247                 hwwrite(vortex->mmio, VORTEX_ADBDMA_BUFBASE+(((adbdma << 2)+pp) << 2), snd_sgbuf_get_addr(dma->sgbuf, dma->period_bytes * p));
1248                 /* Force write thru cache. */
1249                 hwread(vortex->mmio, VORTEX_ADBDMA_BUFBASE + (((adbdma << 2)+pp) << 2));
1250         }
1251 }
1252
1253 static int inline vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma)
1254 {
1255         stream_t *dma = &vortex->dma_adb[adbdma];
1256         int temp;
1257
1258         temp = hwread(vortex->mmio, VORTEX_ADBDMA_STAT + (adbdma << 2));
1259         temp = (dma->period_virt * dma->period_bytes) + (temp & POS_MASK);
1260         return (temp);
1261 }
1262
1263 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma)
1264 {
1265         int this_8 = 0 /*empty */ , this_4 = 0 /*priority */ ;
1266         stream_t *dma = &vortex->dma_adb[adbdma];
1267
1268         switch (dma->fifo_status) {
1269         case FIFO_START:
1270                 vortex_fifo_setadbvalid(vortex, adbdma,
1271                                         dma->fifo_enabled ? 1 : 0);
1272                 break;
1273         case FIFO_STOP:
1274                 this_8 = 1;
1275                 hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1276                         dma->dma_ctrl);
1277                 vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1278                                        this_4, this_8,
1279                                        dma->fifo_enabled ? 1 : 0, 0);
1280                 break;
1281         case FIFO_PAUSE:
1282                 vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1283                                        this_4, this_8,
1284                                        dma->fifo_enabled ? 1 : 0, 0);
1285                 break;
1286         }
1287         dma->fifo_status = FIFO_START;
1288 }
1289
1290 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma)
1291 {
1292         stream_t *dma = &vortex->dma_adb[adbdma];
1293
1294         int this_8 = 1, this_4 = 0;
1295         switch (dma->fifo_status) {
1296         case FIFO_STOP:
1297                 hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1298                         dma->dma_ctrl);
1299                 vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1300                                        this_4, this_8,
1301                                        dma->fifo_enabled ? 1 : 0, 0);
1302                 break;
1303         case FIFO_PAUSE:
1304                 vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1305                                        this_4, this_8,
1306                                        dma->fifo_enabled ? 1 : 0, 0);
1307                 break;
1308         }
1309         dma->fifo_status = FIFO_START;
1310 }
1311
1312 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma)
1313 {
1314         stream_t *dma = &vortex->dma_adb[adbdma];
1315
1316         int this_8 = 0, this_4 = 0;
1317         switch (dma->fifo_status) {
1318         case FIFO_START:
1319                 vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1320                                        this_4, this_8, 0, 0);
1321                 break;
1322         case FIFO_STOP:
1323                 hwwrite(vortex->mmio, VORTEX_ADBDMA_CTRL + (adbdma << 2),
1324                         dma->dma_ctrl);
1325                 vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1326                                        this_4, this_8, 0, 0);
1327                 break;
1328         }
1329         dma->fifo_status = FIFO_PAUSE;
1330 }
1331
1332 #if 0                           // Using pause instead
1333 static void vortex_adbdma_stopfifo(vortex_t * vortex, int adbdma)
1334 {
1335         stream_t *dma = &vortex->dma_adb[adbdma];
1336
1337         int this_4 = 0, this_8 = 0;
1338         if (dma->fifo_status == FIFO_START)
1339                 vortex_fifo_setadbctrl(vortex, adbdma, dma->dma_unknown,
1340                                        this_4, this_8, 0, 0);
1341         else if (dma->fifo_status == FIFO_STOP)
1342                 return;
1343         dma->fifo_status = FIFO_STOP;
1344         dma->fifo_enabled = 0;
1345 }
1346
1347 #endif
1348 /* WTDMA */
1349
1350 #ifndef CHIP_AU8810
1351 static void vortex_wtdma_setfirstbuffer(vortex_t * vortex, int wtdma)
1352 {
1353         //int this_7c=dma_ctrl;
1354         stream_t *dma = &vortex->dma_wt[wtdma];
1355
1356         hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1357 }
1358
1359 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb)
1360 {
1361         stream_t *dma = &vortex->dma_wt[wtdma];
1362         //hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2), sb << ((0x1f-(wtdma&0xf)*2)));
1363         hwwrite(vortex->mmio, VORTEX_WTDMA_START + (wtdma << 2),
1364                 sb << ((0xf - (wtdma & 0xf)) * 2));
1365         dma->period_real = dma->period_virt = sb;
1366 }
1367
1368 static void
1369 vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
1370                         struct snd_sg_buf * sgbuf, int psize, int count)
1371 {
1372         stream_t *dma = &vortex->dma_wt[wtdma];
1373
1374         dma->period_bytes = psize;
1375         dma->nr_periods = count;
1376         dma->sgbuf = sgbuf;
1377
1378         dma->cfg0 = 0;
1379         dma->cfg1 = 0;
1380         switch (count) {
1381                 /* Four or more pages */
1382         default:
1383         case 4:
1384                 dma->cfg1 |= 0x88000000 | 0x44000000 | 0x30000000 | (psize-1);
1385                 hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0xc,
1386                         snd_sgbuf_get_addr(sgbuf, psize * 3));
1387                 /* 3 pages */
1388         case 3:
1389                 dma->cfg0 |= 0x12000000;
1390                 dma->cfg1 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1391                 hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4)  + 0x8,
1392                         snd_sgbuf_get_addr(sgbuf, psize * 2));
1393                 /* 2 pages */
1394         case 2:
1395                 dma->cfg0 |= 0x88000000 | 0x44000000 | 0x10000000 | (psize-1);
1396                 hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4) + 0x4,
1397                         snd_sgbuf_get_addr(sgbuf, psize));
1398                 /* 1 page */
1399         case 1:
1400                 dma->cfg0 |= 0x80000000 | 0x40000000 | ((psize-1) << 0xc);
1401                 hwwrite(vortex->mmio, VORTEX_WTDMA_BUFBASE + (wtdma << 4),
1402                         snd_sgbuf_get_addr(sgbuf, 0));
1403                 break;
1404         }
1405         hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG0 + (wtdma << 3), dma->cfg0);
1406         hwwrite(vortex->mmio, VORTEX_WTDMA_BUFCFG1 + (wtdma << 3), dma->cfg1);
1407
1408         vortex_wtdma_setfirstbuffer(vortex, wtdma);
1409         vortex_wtdma_setstartbuffer(vortex, wtdma, 0);
1410 }
1411
1412 static void
1413 vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,
1414                      /*int e, */ unsigned long offset)
1415 {
1416         stream_t *dma = &vortex->dma_wt[wtdma];
1417
1418         //dma->this_08 = e;
1419         dma->dma_unknown = d;
1420         dma->dma_ctrl = 0;
1421         dma->dma_ctrl =
1422             ((offset & OFFSET_MASK) | (dma->dma_ctrl & ~OFFSET_MASK));
1423         /* PCMOUT interrupt */
1424         dma->dma_ctrl =
1425             (dma->dma_ctrl & ~IE_MASK) | ((ie << IE_SHIFT) & IE_MASK);
1426         /* Always playback. */
1427         dma->dma_ctrl |= (1 << DIR_SHIFT);
1428         /* Audio Format */
1429         dma->dma_ctrl =
1430             (dma->dma_ctrl & FMT_MASK) | ((fmt << FMT_SHIFT) & FMT_MASK);
1431         /* Write into hardware */
1432         hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2), dma->dma_ctrl);
1433 }
1434
1435 static int vortex_wtdma_bufshift(vortex_t * vortex, int wtdma)
1436 {
1437         stream_t *dma = &vortex->dma_wt[wtdma];
1438         int page, p, pp, delta, i;
1439
1440         page =
1441             (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) &
1442              WT_SUBBUF_MASK)
1443             >> WT_SUBBUF_SHIFT;
1444         if (dma->nr_periods >= 4)
1445                 delta = (page - dma->period_real) & 3;
1446         else {
1447                 delta = (page - dma->period_real);
1448                 if (delta < 0)
1449                         delta += dma->nr_periods;
1450         }
1451         if (delta == 0)
1452                 return 0;
1453
1454         /* refresh hw page table */
1455         if (dma->nr_periods > 4) {
1456                 for (i = 0; i < delta; i++) {
1457                         /* p: audio buffer page index */
1458                         p = dma->period_virt + i + 4;
1459                         if (p >= dma->nr_periods)
1460                                 p -= dma->nr_periods;
1461                         /* pp: hardware DMA page index. */
1462                         pp = dma->period_real + i;
1463                         if (pp >= 4)
1464                                 pp -= 4;
1465                         hwwrite(vortex->mmio,
1466                                 VORTEX_WTDMA_BUFBASE +
1467                                 (((wtdma << 2) + pp) << 2),
1468                                 snd_sgbuf_get_addr(dma->sgbuf, dma->period_bytes * p));
1469                         /* Force write thru cache. */
1470                         hwread(vortex->mmio, VORTEX_WTDMA_BUFBASE +
1471                                (((wtdma << 2) + pp) << 2));
1472                 }
1473         }
1474         dma->period_virt += delta;
1475         if (dma->period_virt >= dma->nr_periods)
1476                 dma->period_virt -= dma->nr_periods;
1477         dma->period_real = page;
1478
1479         if (delta != 1)
1480                 printk(KERN_WARNING "vortex: wt virt = %d, delta = %d\n",
1481                        dma->period_virt, delta);
1482
1483         return delta;
1484 }
1485
1486 #if 0
1487 static void
1488 vortex_wtdma_getposition(vortex_t * vortex, int wtdma, int *subbuf, int *pos)
1489 {
1490         int temp;
1491         temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1492         *subbuf = (temp >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
1493         *pos = temp & POS_MASK;
1494 }
1495
1496 static int vortex_wtdma_getcursubuffer(vortex_t * vortex, int wtdma)
1497 {
1498         return ((hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) >>
1499                  POS_SHIFT) & POS_MASK);
1500 }
1501 #endif
1502 static int inline vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma)
1503 {
1504         stream_t *dma = &vortex->dma_wt[wtdma];
1505         int temp;
1506
1507         temp = hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2));
1508         //temp = (temp & POS_MASK) + (((temp>>WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK)*(dma->cfg0&POS_MASK));
1509         temp = (temp & POS_MASK) + ((dma->period_virt) * (dma->period_bytes));
1510         return temp;
1511 }
1512
1513 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma)
1514 {
1515         stream_t *dma = &vortex->dma_wt[wtdma];
1516         int this_8 = 0, this_4 = 0;
1517
1518         switch (dma->fifo_status) {
1519         case FIFO_START:
1520                 vortex_fifo_setwtvalid(vortex, wtdma,
1521                                        dma->fifo_enabled ? 1 : 0);
1522                 break;
1523         case FIFO_STOP:
1524                 this_8 = 1;
1525                 hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1526                         dma->dma_ctrl);
1527                 vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1528                                       this_4, this_8,
1529                                       dma->fifo_enabled ? 1 : 0, 0);
1530                 break;
1531         case FIFO_PAUSE:
1532                 vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1533                                       this_4, this_8,
1534                                       dma->fifo_enabled ? 1 : 0, 0);
1535                 break;
1536         }
1537         dma->fifo_status = FIFO_START;
1538 }
1539
1540 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma)
1541 {
1542         stream_t *dma = &vortex->dma_wt[wtdma];
1543
1544         int this_8 = 0, this_4 = 0;
1545         switch (dma->fifo_status) {
1546         case FIFO_STOP:
1547                 hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1548                         dma->dma_ctrl);
1549                 vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1550                                       this_4, this_8,
1551                                       dma->fifo_enabled ? 1 : 0, 0);
1552                 break;
1553         case FIFO_PAUSE:
1554                 vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1555                                       this_4, this_8,
1556                                       dma->fifo_enabled ? 1 : 0, 0);
1557                 break;
1558         }
1559         dma->fifo_status = FIFO_START;
1560 }
1561
1562 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma)
1563 {
1564         stream_t *dma = &vortex->dma_wt[wtdma];
1565
1566         int this_8 = 0, this_4 = 0;
1567         switch (dma->fifo_status) {
1568         case FIFO_START:
1569                 vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1570                                       this_4, this_8, 0, 0);
1571                 break;
1572         case FIFO_STOP:
1573                 hwwrite(vortex->mmio, VORTEX_WTDMA_CTRL + (wtdma << 2),
1574                         dma->dma_ctrl);
1575                 vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1576                                       this_4, this_8, 0, 0);
1577                 break;
1578         }
1579         dma->fifo_status = FIFO_PAUSE;
1580 }
1581
1582 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma)
1583 {
1584         stream_t *dma = &vortex->dma_wt[wtdma];
1585
1586         int this_4 = 0, this_8 = 0;
1587         if (dma->fifo_status == FIFO_START)
1588                 vortex_fifo_setwtctrl(vortex, wtdma, dma->dma_unknown,
1589                                       this_4, this_8, 0, 0);
1590         else if (dma->fifo_status == FIFO_STOP)
1591                 return;
1592         dma->fifo_status = FIFO_STOP;
1593         dma->fifo_enabled = 0;
1594 }
1595
1596 #endif
1597 /* ADB Routes */
1598
1599 typedef int ADBRamLink;
1600 static void vortex_adb_init(vortex_t * vortex)
1601 {
1602         int i;
1603         /* it looks like we are writing more than we need to...
1604          * if we write what we are supposed to it breaks things... */
1605         hwwrite(vortex->mmio, VORTEX_ADB_SR, 0);
1606         for (i = 0; i < VORTEX_ADB_RTBASE_COUNT; i++)
1607                 hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (i << 2),
1608                         hwread(vortex->mmio,
1609                                VORTEX_ADB_RTBASE + (i << 2)) | ROUTE_MASK);
1610         for (i = 0; i < VORTEX_ADB_CHNBASE_COUNT; i++) {
1611                 hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (i << 2),
1612                         hwread(vortex->mmio,
1613                                VORTEX_ADB_CHNBASE + (i << 2)) | ROUTE_MASK);
1614         }
1615 }
1616
1617 static void vortex_adb_en_sr(vortex_t * vortex, int channel)
1618 {
1619         hwwrite(vortex->mmio, VORTEX_ADB_SR,
1620                 hwread(vortex->mmio, VORTEX_ADB_SR) | (0x1 << channel));
1621 }
1622
1623 static void vortex_adb_dis_sr(vortex_t * vortex, int channel)
1624 {
1625         hwwrite(vortex->mmio, VORTEX_ADB_SR,
1626                 hwread(vortex->mmio, VORTEX_ADB_SR) & ~(0x1 << channel));
1627 }
1628
1629 static void
1630 vortex_adb_addroutes(vortex_t * vortex, unsigned char channel,
1631                      ADBRamLink * route, int rnum)
1632 {
1633         int temp, prev, lifeboat = 0;
1634
1635         if ((rnum <= 0) || (route == NULL))
1636                 return;
1637         /* Write last routes. */
1638         rnum--;
1639         hwwrite(vortex->mmio,
1640                 VORTEX_ADB_RTBASE + ((route[rnum] & ADB_MASK) << 2),
1641                 ROUTE_MASK);
1642         while (rnum > 0) {
1643                 hwwrite(vortex->mmio,
1644                         VORTEX_ADB_RTBASE +
1645                         ((route[rnum - 1] & ADB_MASK) << 2), route[rnum]);
1646                 rnum--;
1647         }
1648         /* Write first route. */
1649         temp =
1650             hwread(vortex->mmio,
1651                    VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1652         if (temp == ADB_MASK) {
1653                 /* First entry on this channel. */
1654                 hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1655                         route[0]);
1656                 vortex_adb_en_sr(vortex, channel);
1657                 return;
1658         }
1659         /* Not first entry on this channel. Need to link. */
1660         do {
1661                 prev = temp;
1662                 temp =
1663                     hwread(vortex->mmio,
1664                            VORTEX_ADB_RTBASE + (temp << 2)) & ADB_MASK;
1665                 if ((lifeboat++) > ADB_MASK) {
1666                         printk(KERN_ERR
1667                                "vortex_adb_addroutes: unending route! 0x%x\n",
1668                                *route);
1669                         return;
1670                 }
1671         }
1672         while (temp != ADB_MASK);
1673         hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), route[0]);
1674 }
1675
1676 static void
1677 vortex_adb_delroutes(vortex_t * vortex, unsigned char channel,
1678                      ADBRamLink route0, ADBRamLink route1)
1679 {
1680         int temp, lifeboat = 0, prev;
1681
1682         /* Find route. */
1683         temp =
1684             hwread(vortex->mmio,
1685                    VORTEX_ADB_CHNBASE + (channel << 2)) & ADB_MASK;
1686         if (temp == (route0 & ADB_MASK)) {
1687                 temp =
1688                     hwread(vortex->mmio,
1689                            VORTEX_ADB_RTBASE + ((route1 & ADB_MASK) << 2));
1690                 if ((temp & ADB_MASK) == ADB_MASK)
1691                         vortex_adb_dis_sr(vortex, channel);
1692                 hwwrite(vortex->mmio, VORTEX_ADB_CHNBASE + (channel << 2),
1693                         temp);
1694                 return;
1695         }
1696         do {
1697                 prev = temp;
1698                 temp =
1699                     hwread(vortex->mmio,
1700                            VORTEX_ADB_RTBASE + (prev << 2)) & ADB_MASK;
1701                 if (((lifeboat++) > ADB_MASK) || (temp == ADB_MASK)) {
1702                         printk(KERN_ERR
1703                                "vortex_adb_delroutes: route not found! 0x%x\n",
1704                                route0);
1705                         return;
1706                 }
1707         }
1708         while (temp != (route0 & ADB_MASK));
1709         temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1710         if ((temp & ADB_MASK) == route1)
1711                 temp = hwread(vortex->mmio, VORTEX_ADB_RTBASE + (temp << 2));
1712         /* Make bridge over deleted route. */
1713         hwwrite(vortex->mmio, VORTEX_ADB_RTBASE + (prev << 2), temp);
1714 }
1715
1716 static void
1717 vortex_route(vortex_t * vortex, int en, unsigned char channel,
1718              unsigned char source, unsigned char dest)
1719 {
1720         ADBRamLink route;
1721
1722         route = ((source & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1723         if (en) {
1724                 vortex_adb_addroutes(vortex, channel, &route, 1);
1725                 if ((source < (OFFSET_SRCOUT + NR_SRC))
1726                     && (source >= OFFSET_SRCOUT))
1727                         vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1728                                           channel);
1729                 else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1730                          && (source >= OFFSET_MIXOUT))
1731                         vortex_mixer_addWTD(vortex,
1732                                             (source - OFFSET_MIXOUT), channel);
1733         } else {
1734                 vortex_adb_delroutes(vortex, channel, route, route);
1735                 if ((source < (OFFSET_SRCOUT + NR_SRC))
1736                     && (source >= OFFSET_SRCOUT))
1737                         vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1738                                           channel);
1739                 else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1740                          && (source >= OFFSET_MIXOUT))
1741                         vortex_mixer_delWTD(vortex,
1742                                             (source - OFFSET_MIXOUT), channel);
1743         }
1744 }
1745
1746 #if 0
1747 static void
1748 vortex_routes(vortex_t * vortex, int en, unsigned char channel,
1749               unsigned char source, unsigned char dest0, unsigned char dest1)
1750 {
1751         ADBRamLink route[2];
1752
1753         route[0] = ((source & ADB_MASK) << ADB_SHIFT) | (dest0 & ADB_MASK);
1754         route[1] = ((source & ADB_MASK) << ADB_SHIFT) | (dest1 & ADB_MASK);
1755
1756         if (en) {
1757                 vortex_adb_addroutes(vortex, channel, route, 2);
1758                 if ((source < (OFFSET_SRCOUT + NR_SRC))
1759                     && (source >= (OFFSET_SRCOUT)))
1760                         vortex_src_addWTD(vortex, (source - OFFSET_SRCOUT),
1761                                           channel);
1762                 else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1763                          && (source >= (OFFSET_MIXOUT)))
1764                         vortex_mixer_addWTD(vortex,
1765                                             (source - OFFSET_MIXOUT), channel);
1766         } else {
1767                 vortex_adb_delroutes(vortex, channel, route[0], route[1]);
1768                 if ((source < (OFFSET_SRCOUT + NR_SRC))
1769                     && (source >= (OFFSET_SRCOUT)))
1770                         vortex_src_delWTD(vortex, (source - OFFSET_SRCOUT),
1771                                           channel);
1772                 else if ((source < (OFFSET_MIXOUT + NR_MIXOUT))
1773                          && (source >= (OFFSET_MIXOUT)))
1774                         vortex_mixer_delWTD(vortex,
1775                                             (source - OFFSET_MIXOUT), channel);
1776         }
1777 }
1778
1779 #endif
1780 /* Route two sources to same target. Sources must be of same class !!! */
1781 static void
1782 vortex_routeLRT(vortex_t * vortex, int en, unsigned char ch,
1783                 unsigned char source0, unsigned char source1,
1784                 unsigned char dest)
1785 {
1786         ADBRamLink route[2];
1787
1788         route[0] = ((source0 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1789         route[1] = ((source1 & ADB_MASK) << ADB_SHIFT) | (dest & ADB_MASK);
1790
1791         if (dest < 0x10)
1792                 route[1] = (route[1] & ~ADB_MASK) | (dest + 0x20);      /* fifo A */
1793
1794         if (en) {
1795                 vortex_adb_addroutes(vortex, ch, route, 2);
1796                 if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1797                     && (source0 >= OFFSET_SRCOUT)) {
1798                         vortex_src_addWTD(vortex,
1799                                           (source0 - OFFSET_SRCOUT), ch);
1800                         vortex_src_addWTD(vortex,
1801                                           (source1 - OFFSET_SRCOUT), ch);
1802                 } else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1803                            && (source0 >= OFFSET_MIXOUT)) {
1804                         vortex_mixer_addWTD(vortex,
1805                                             (source0 - OFFSET_MIXOUT), ch);
1806                         vortex_mixer_addWTD(vortex,
1807                                             (source1 - OFFSET_MIXOUT), ch);
1808                 }
1809         } else {
1810                 vortex_adb_delroutes(vortex, ch, route[0], route[1]);
1811                 if ((source0 < (OFFSET_SRCOUT + NR_SRC))
1812                     && (source0 >= OFFSET_SRCOUT)) {
1813                         vortex_src_delWTD(vortex,
1814                                           (source0 - OFFSET_SRCOUT), ch);
1815                         vortex_src_delWTD(vortex,
1816                                           (source1 - OFFSET_SRCOUT), ch);
1817                 } else if ((source0 < (OFFSET_MIXOUT + NR_MIXOUT))
1818                            && (source0 >= OFFSET_MIXOUT)) {
1819                         vortex_mixer_delWTD(vortex,
1820                                             (source0 - OFFSET_MIXOUT), ch);
1821                         vortex_mixer_delWTD(vortex,
1822                                             (source1 - OFFSET_MIXOUT), ch);
1823                 }
1824         }
1825 }
1826
1827 /* Connection stuff */
1828
1829 // Connect adbdma to src('s).
1830 static void
1831 vortex_connection_adbdma_src(vortex_t * vortex, int en, unsigned char ch,
1832                              unsigned char adbdma, unsigned char src)
1833 {
1834         vortex_route(vortex, en, ch, ADB_DMA(adbdma), ADB_SRCIN(src));
1835 }
1836
1837 // Connect SRC to mixin.
1838 static void
1839 vortex_connection_src_mixin(vortex_t * vortex, int en,
1840                             unsigned char channel, unsigned char src,
1841                             unsigned char mixin)
1842 {
1843         vortex_route(vortex, en, channel, ADB_SRCOUT(src), ADB_MIXIN(mixin));
1844 }
1845
1846 // Connect mixin with mix output.
1847 static void
1848 vortex_connection_mixin_mix(vortex_t * vortex, int en, unsigned char mixin,
1849                             unsigned char mix, int a)
1850 {
1851         if (en) {
1852                 vortex_mix_enableinput(vortex, mix, mixin);
1853                 vortex_mix_setinputvolumebyte(vortex, mix, mixin, MIX_DEFIGAIN);        // added to original code.
1854         } else
1855                 vortex_mix_disableinput(vortex, mix, mixin, a);
1856 }
1857
1858 // Connect absolut address to mixin.
1859 static void
1860 vortex_connection_adb_mixin(vortex_t * vortex, int en,
1861                             unsigned char channel, unsigned char source,
1862                             unsigned char mixin)
1863 {
1864         vortex_route(vortex, en, channel, source, ADB_MIXIN(mixin));
1865 }
1866
1867 static void
1868 vortex_connection_src_adbdma(vortex_t * vortex, int en, unsigned char ch,
1869                              unsigned char src, unsigned char adbdma)
1870 {
1871         vortex_route(vortex, en, ch, ADB_SRCOUT(src), ADB_DMA(adbdma));
1872 }
1873
1874 static void
1875 vortex_connection_src_src_adbdma(vortex_t * vortex, int en,
1876                                  unsigned char ch, unsigned char src0,
1877                                  unsigned char src1, unsigned char adbdma)
1878 {
1879
1880         vortex_routeLRT(vortex, en, ch, ADB_SRCOUT(src0), ADB_SRCOUT(src1),
1881                         ADB_DMA(adbdma));
1882 }
1883
1884 // mix to absolut address.
1885 static void
1886 vortex_connection_mix_adb(vortex_t * vortex, int en, unsigned char ch,
1887                           unsigned char mix, unsigned char dest)
1888 {
1889         vortex_route(vortex, en, ch, ADB_MIXOUT(mix), dest);
1890         vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);    // added to original code.
1891 }
1892
1893 // mixer to src.
1894 static void
1895 vortex_connection_mix_src(vortex_t * vortex, int en, unsigned char ch,
1896                           unsigned char mix, unsigned char src)
1897 {
1898         vortex_route(vortex, en, ch, ADB_MIXOUT(mix), ADB_SRCIN(src));
1899         vortex_mix_setvolumebyte(vortex, mix, MIX_DEFOGAIN);    // added to original code.
1900 }
1901
1902 #if 0
1903 static void
1904 vortex_connection_adbdma_src_src(vortex_t * vortex, int en,
1905                                  unsigned char channel,
1906                                  unsigned char adbdma, unsigned char src0,
1907                                  unsigned char src1)
1908 {
1909         vortex_routes(vortex, en, channel, ADB_DMA(adbdma),
1910                       ADB_SRCIN(src0), ADB_SRCIN(src1));
1911 }
1912
1913 // Connect two mix to AdbDma.
1914 static void
1915 vortex_connection_mix_mix_adbdma(vortex_t * vortex, int en,
1916                                  unsigned char ch, unsigned char mix0,
1917                                  unsigned char mix1, unsigned char adbdma)
1918 {
1919
1920         ADBRamLink routes[2];
1921         routes[0] =
1922             (((mix0 +
1923                OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | (adbdma & ADB_MASK);
1924         routes[1] =
1925             (((mix1 + OFFSET_MIXOUT) & ADB_MASK) << ADB_SHIFT) | ((adbdma +
1926                                                                    0x20) &
1927                                                                   ADB_MASK);
1928         if (en) {
1929                 vortex_adb_addroutes(vortex, ch, routes, 0x2);
1930                 vortex_mixer_addWTD(vortex, mix0, ch);
1931                 vortex_mixer_addWTD(vortex, mix1, ch);
1932         } else {
1933                 vortex_adb_delroutes(vortex, ch, routes[0], routes[1]);
1934                 vortex_mixer_delWTD(vortex, mix0, ch);
1935                 vortex_mixer_delWTD(vortex, mix1, ch);
1936         }
1937 }
1938 #endif
1939
1940 /* CODEC connect. */
1941
1942 static void
1943 vortex_connect_codecplay(vortex_t * vortex, int en, unsigned char mixers[])
1944 {
1945 #ifdef CHIP_AU8820
1946         vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1947         vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1948 #else
1949 #if 1
1950         // Connect front channels through EQ.
1951         vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_EQIN(0));
1952         vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_EQIN(1));
1953         /* Lower volume, since EQ has some gain. */
1954         vortex_mix_setvolumebyte(vortex, mixers[0], 0);
1955         vortex_mix_setvolumebyte(vortex, mixers[1], 0);
1956         vortex_route(vortex, en, 0x11, ADB_EQOUT(0), ADB_CODECOUT(0));
1957         vortex_route(vortex, en, 0x11, ADB_EQOUT(1), ADB_CODECOUT(1));
1958
1959         /* Check if reg 0x28 has SDAC bit set. */
1960         if (VORTEX_IS_QUAD(vortex)) {
1961                 /* Rear channel. Note: ADB_CODECOUT(0+2) and (1+2) is for AC97 modem */
1962                 vortex_connection_mix_adb(vortex, en, 0x11, mixers[2],
1963                                           ADB_CODECOUT(0 + 4));
1964                 vortex_connection_mix_adb(vortex, en, 0x11, mixers[3],
1965                                           ADB_CODECOUT(1 + 4));
1966                 //printk("SDAC detected ");
1967         }
1968 #else
1969         // Use plain direct output to codec.
1970         vortex_connection_mix_adb(vortex, en, 0x11, mixers[0], ADB_CODECOUT(0));
1971         vortex_connection_mix_adb(vortex, en, 0x11, mixers[1], ADB_CODECOUT(1));
1972 #endif
1973 #endif
1974 }
1975
1976 static void
1977 vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
1978                         unsigned char mixin1)
1979 {
1980         /*
1981            Enable: 0x1, 0x1
1982            Channel: 0x11, 0x11
1983            ADB Source address: 0x48, 0x49
1984            Destination Asp4Topology_0x9c,0x98
1985          */
1986         vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
1987         vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
1988 }
1989
1990 // Higher level ADB audio path (de)allocator.
1991
1992 /* Resource manager */
1993 static int resnum[VORTEX_RESOURCE_LAST] =
1994     { NR_ADB, NR_SRC, NR_MIXIN, NR_MIXOUT, NR_A3D };
1995 /*
1996  Checkout/Checkin resource of given type.
1997  resmap: resource map to be used. If NULL means that we want to allocate
1998  a DMA resource (root of all other resources of a dma channel).
1999  out: Mean checkout if != 0. Else mean Checkin resource.
2000  restype: Indicates type of resource to be checked in or out.
2001 */
2002 static char
2003 vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
2004 {
2005         int i, qty = resnum[restype], resinuse = 0;
2006
2007         if (out) {
2008                 /* Gather used resources by all streams. */
2009                 for (i = 0; i < NR_ADB; i++) {
2010                         resinuse |= vortex->dma_adb[i].resources[restype];
2011                 }
2012                 resinuse |= vortex->fixed_res[restype];
2013                 /* Find and take free resource. */
2014                 for (i = 0; i < qty; i++) {
2015                         if ((resinuse & (1 << i)) == 0) {
2016                                 if (resmap != NULL)
2017                                         resmap[restype] |= (1 << i);
2018                                 else
2019                                         vortex->dma_adb[i].resources[restype] |= (1 << i);
2020                                 //printk("vortex: ResManager: type %d out %d\n", restype, i);
2021                                 return i;
2022                         }
2023                 }
2024         } else {
2025                 if (resmap == NULL)
2026                         return -EINVAL;
2027                 /* Checkin first resource of type restype. */
2028                 for (i = 0; i < qty; i++) {
2029                         if (resmap[restype] & (1 << i)) {
2030                                 resmap[restype] &= ~(1 << i);
2031                                 //printk("vortex: ResManager: type %d in %d\n",restype, i);
2032                                 return i;
2033                         }
2034                 }
2035         }
2036         printk(KERN_ERR "vortex: FATAL: ResManager: resource type %d exhausted.\n", restype);
2037         return -ENOMEM;
2038 }
2039
2040 /* Default Connections  */
2041 static int
2042 vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type);
2043
2044 static void vortex_connect_default(vortex_t * vortex, int en)
2045 {
2046         // Connect AC97 codec.
2047         vortex->mixplayb[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2048                                   VORTEX_RESOURCE_MIXOUT);
2049         vortex->mixplayb[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2050                                   VORTEX_RESOURCE_MIXOUT);
2051         if (VORTEX_IS_QUAD(vortex)) {
2052                 vortex->mixplayb[2] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2053                                           VORTEX_RESOURCE_MIXOUT);
2054                 vortex->mixplayb[3] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2055                                           VORTEX_RESOURCE_MIXOUT);
2056         }
2057         vortex_connect_codecplay(vortex, en, vortex->mixplayb);
2058
2059         vortex->mixcapt[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2060                                   VORTEX_RESOURCE_MIXIN);
2061         vortex->mixcapt[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2062                                   VORTEX_RESOURCE_MIXIN);
2063         vortex_connect_codecrec(vortex, en, MIX_CAPT(0), MIX_CAPT(1));
2064
2065         // Connect SPDIF
2066 #ifndef CHIP_AU8820
2067         vortex->mixspdif[0] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2068                                   VORTEX_RESOURCE_MIXOUT);
2069         vortex->mixspdif[1] = vortex_adb_checkinout(vortex, vortex->fixed_res, en,
2070                                   VORTEX_RESOURCE_MIXOUT);
2071         vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[0],
2072                                   ADB_SPDIFOUT(0));
2073         vortex_connection_mix_adb(vortex, en, 0x14, vortex->mixspdif[1],
2074                                   ADB_SPDIFOUT(1));
2075 #endif
2076         // Connect WT
2077 #ifndef CHIP_AU8810
2078         vortex_wt_connect(vortex, en);
2079 #endif
2080         // A3D (crosstalk canceler and A3D slices). AU8810 disabled for now.
2081 #ifndef CHIP_AU8820
2082         vortex_Vort3D_connect(vortex, en);
2083 #endif
2084         // Connect I2S
2085
2086         // Connect DSP interface for SQ3500 turbo (not here i think...)
2087
2088         // Connect AC98 modem codec
2089
2090 }
2091
2092 /*
2093   Allocate nr_ch pcm audio routes if dma < 0. If dma >= 0, existing routes
2094   are deallocated.
2095   dma: DMA engine routes to be deallocated when dma >= 0.
2096   nr_ch: Number of channels to be de/allocated.
2097   dir: direction of stream. Uses same values as substream->stream.
2098   type: Type of audio output/source (codec, spdif, i2s, dsp, etc)
2099   Return: Return allocated DMA or same DMA passed as "dma" when dma >= 0.
2100 */
2101 static int
2102 vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch, int dir, int type)
2103 {
2104         stream_t *stream;
2105         int i, en;
2106
2107         if ((nr_ch == 3)
2108             || ((dir == SNDRV_PCM_STREAM_CAPTURE) && (nr_ch > 2)))
2109                 return -EBUSY;
2110
2111         if (dma >= 0) {
2112                 en = 0;
2113                 vortex_adb_checkinout(vortex,
2114                                       vortex->dma_adb[dma].resources, en,
2115                                       VORTEX_RESOURCE_DMA);
2116         } else {
2117                 en = 1;
2118                 if ((dma =
2119                      vortex_adb_checkinout(vortex, NULL, en,
2120                                            VORTEX_RESOURCE_DMA)) < 0)
2121                         return -EBUSY;
2122         }
2123
2124         stream = &vortex->dma_adb[dma];
2125         stream->dma = dma;
2126         stream->dir = dir;
2127         stream->type = type;
2128
2129         /* PLAYBACK ROUTES. */
2130         if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
2131                 int src[4], mix[4], ch_top;
2132 #ifndef CHIP_AU8820
2133                 int a3d = 0;
2134 #endif
2135                 /* Get SRC and MIXER hardware resources. */
2136                 if (stream->type != VORTEX_PCM_SPDIF) {
2137                         for (i = 0; i < nr_ch; i++) {
2138                                 if ((src[i] = vortex_adb_checkinout(vortex,
2139                                                            stream->resources, en,
2140                                                            VORTEX_RESOURCE_SRC)) < 0) {
2141                                         memset(stream->resources, 0,
2142                                                sizeof(unsigned char) *
2143                                                VORTEX_RESOURCE_LAST);
2144                                         return -EBUSY;
2145                                 }
2146                                 if (stream->type != VORTEX_PCM_A3D) {
2147                                         if ((mix[i] = vortex_adb_checkinout(vortex,
2148                                                                    stream->resources,
2149                                                                    en,
2150                                                                    VORTEX_RESOURCE_MIXIN)) < 0) {
2151                                                 memset(stream->resources,
2152                                                        0,
2153                                                        sizeof(unsigned char) * VORTEX_RESOURCE_LAST);
2154                                                 return -EBUSY;
2155                                         }
2156                                 }
2157                         }
2158                 }
2159 #ifndef CHIP_AU8820
2160                 if (stream->type == VORTEX_PCM_A3D) {
2161                         if ((a3d =
2162                              vortex_adb_checkinout(vortex,
2163                                                    stream->resources, en,
2164                                                    VORTEX_RESOURCE_A3D)) < 0) {
2165                                 memset(stream->resources, 0,
2166                                        sizeof(unsigned char) *
2167                                        VORTEX_RESOURCE_LAST);
2168                                 printk(KERN_ERR "vortex: out of A3D sources. Sorry\n");
2169                                 return -EBUSY;
2170                         }
2171                         /* (De)Initialize A3D hardware source. */
2172                         vortex_Vort3D_InitializeSource(&(vortex->a3d[a3d]), en);
2173                 }
2174                 /* Make SPDIF out exclusive to "spdif" device when in use. */
2175                 if ((stream->type == VORTEX_PCM_SPDIF) && (en)) {
2176                         vortex_route(vortex, 0, 0x14,
2177                                      ADB_MIXOUT(vortex->mixspdif[0]),
2178                                      ADB_SPDIFOUT(0));
2179                         vortex_route(vortex, 0, 0x14,
2180                                      ADB_MIXOUT(vortex->mixspdif[1]),
2181                                      ADB_SPDIFOUT(1));
2182                 }
2183 #endif
2184                 /* Make playback routes. */
2185                 for (i = 0; i < nr_ch; i++) {
2186                         if (stream->type == VORTEX_PCM_ADB) {
2187                                 vortex_connection_adbdma_src(vortex, en,
2188                                                              src[nr_ch - 1],
2189                                                              dma,
2190                                                              src[i]);
2191                                 vortex_connection_src_mixin(vortex, en,
2192                                                             0x11, src[i],
2193                                                             mix[i]);
2194                                 vortex_connection_mixin_mix(vortex, en,
2195                                                             mix[i],
2196                                                             MIX_PLAYB(i), 0);
2197 #ifndef CHIP_AU8820
2198                                 vortex_connection_mixin_mix(vortex, en,
2199                                                             mix[i],
2200                                                             MIX_SPDIF(i % 2), 0);
2201                                 vortex_mix_setinputvolumebyte(vortex,
2202                                                               MIX_SPDIF(i % 2),
2203                                                               mix[i],
2204                                                               MIX_DEFIGAIN);
2205 #endif
2206                         }
2207 #ifndef CHIP_AU8820
2208                         if (stream->type == VORTEX_PCM_A3D) {
2209                                 vortex_connection_adbdma_src(vortex, en,
2210                                                              src[nr_ch - 1],
2211                                                                  dma,
2212                                                              src[i]);
2213                                 vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_A3DIN(a3d));
2214                                 /* XTalk test. */
2215                                 //vortex_route(vortex, en, 0x11, dma, ADB_XTALKIN(i?9:4));
2216                                 //vortex_route(vortex, en, 0x11, ADB_SRCOUT(src[i]), ADB_XTALKIN(i?4:9));
2217                         }
2218                         if (stream->type == VORTEX_PCM_SPDIF)
2219                                 vortex_route(vortex, en, 0x14,
2220                                              ADB_DMA(stream->dma),
2221                                              ADB_SPDIFOUT(i));
2222 #endif
2223                 }
2224                 if (stream->type != VORTEX_PCM_SPDIF && stream->type != VORTEX_PCM_A3D) {
2225                         ch_top = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
2226                         for (i = nr_ch; i < ch_top; i++) {
2227                                 vortex_connection_mixin_mix(vortex, en,
2228                                                             mix[i % nr_ch],
2229                                                             MIX_PLAYB(i), 0);
2230 #ifndef CHIP_AU8820
2231                                 vortex_connection_mixin_mix(vortex, en,
2232                                                             mix[i % nr_ch],
2233                                                             MIX_SPDIF(i % 2),
2234                                                                 0);
2235                                 vortex_mix_setinputvolumebyte(vortex,
2236                                                               MIX_SPDIF(i % 2),
2237                                                               mix[i % nr_ch],
2238                                                               MIX_DEFIGAIN);
2239 #endif
2240                         }
2241                 }
2242 #ifndef CHIP_AU8820
2243                 else {
2244                         if (nr_ch == 1 && stream->type == VORTEX_PCM_SPDIF)
2245                                 vortex_route(vortex, en, 0x14,
2246                                              ADB_DMA(stream->dma),
2247                                              ADB_SPDIFOUT(1));
2248                 }
2249                 /* Reconnect SPDIF out when "spdif" device is down. */
2250                 if ((stream->type == VORTEX_PCM_SPDIF) && (!en)) {
2251                         vortex_route(vortex, 1, 0x14,
2252                                      ADB_MIXOUT(vortex->mixspdif[0]),
2253                                      ADB_SPDIFOUT(0));
2254                         vortex_route(vortex, 1, 0x14,
2255                                      ADB_MIXOUT(vortex->mixspdif[1]),
2256                                      ADB_SPDIFOUT(1));
2257                 }
2258 #endif
2259         /* CAPTURE ROUTES. */
2260         } else {
2261                 int src[2], mix[2];
2262
2263                 /* Get SRC and MIXER hardware resources. */
2264                 for (i = 0; i < nr_ch; i++) {
2265                         if ((mix[i] =
2266                              vortex_adb_checkinout(vortex,
2267                                                    stream->resources, en,
2268                                                    VORTEX_RESOURCE_MIXOUT))
2269                             < 0) {
2270                                 memset(stream->resources, 0,
2271                                        sizeof(unsigned char) *
2272                                        VORTEX_RESOURCE_LAST);
2273                                 return -EBUSY;
2274                         }
2275                         if ((src[i] =
2276                              vortex_adb_checkinout(vortex,
2277                                                    stream->resources, en,
2278                                                    VORTEX_RESOURCE_SRC)) < 0) {
2279                                 memset(stream->resources, 0,
2280                                        sizeof(unsigned char) *
2281                                        VORTEX_RESOURCE_LAST);
2282                                 return -EBUSY;
2283                         }
2284                 }
2285
2286                 /* Make capture routes. */
2287                 vortex_connection_mixin_mix(vortex, en, MIX_CAPT(0), mix[0], 0);
2288                 vortex_connection_mix_src(vortex, en, 0x11, mix[0], src[0]);
2289                 if (nr_ch == 1) {
2290                         vortex_connection_mixin_mix(vortex, en,
2291                                                     MIX_CAPT(1), mix[0], 0);
2292                         vortex_connection_src_adbdma(vortex, en,
2293                                                      src[0],
2294                                                      src[0], dma);
2295                 } else {
2296                         vortex_connection_mixin_mix(vortex, en,
2297                                                     MIX_CAPT(1), mix[1], 0);
2298                         vortex_connection_mix_src(vortex, en, 0x11, mix[1],
2299                                                   src[1]);
2300                         vortex_connection_src_src_adbdma(vortex, en,
2301                                                          src[1], src[0],
2302                                                          src[1], dma);
2303                 }
2304         }
2305         vortex->dma_adb[dma].nr_ch = nr_ch;
2306
2307 #if 0
2308         /* AC97 Codec channel setup. FIXME: this has no effect on some cards !! */
2309         if (nr_ch < 4) {
2310                 /* Copy stereo to rear channel (surround) */
2311                 snd_ac97_write_cache(vortex->codec,
2312                                      AC97_SIGMATEL_DAC2INVERT,
2313                                      snd_ac97_read(vortex->codec,
2314                                                    AC97_SIGMATEL_DAC2INVERT)
2315                                      | 4);
2316         } else {
2317                 /* Allow separate front and rear channels. */
2318                 snd_ac97_write_cache(vortex->codec,
2319                                      AC97_SIGMATEL_DAC2INVERT,
2320                                      snd_ac97_read(vortex->codec,
2321                                                    AC97_SIGMATEL_DAC2INVERT)
2322                                      & ~((u32)
2323                                          4));
2324         }
2325 #endif
2326         return dma;
2327 }
2328
2329 /*
2330  Set the SampleRate of the SRC's attached to the given DMA engine.
2331  */
2332 static void
2333 vortex_adb_setsrc(vortex_t * vortex, int adbdma, unsigned int rate, int dir)
2334 {
2335         stream_t *stream = &(vortex->dma_adb[adbdma]);
2336         int i, cvrt;
2337
2338         /* dir=1:play ; dir=0:rec */
2339         if (dir)
2340                 cvrt = SRC_RATIO(rate, 48000);
2341         else
2342                 cvrt = SRC_RATIO(48000, rate);
2343
2344         /* Setup SRC's */
2345         for (i = 0; i < NR_SRC; i++) {
2346                 if (stream->resources[VORTEX_RESOURCE_SRC] & (1 << i))
2347                         vortex_src_setupchannel(vortex, i, cvrt, 0, 0, i, dir, 1, cvrt, dir);
2348         }
2349 }
2350
2351 // Timer and ISR functions.
2352
2353 static void vortex_settimer(vortex_t * vortex, int period)
2354 {
2355         //set the timer period to <period> 48000ths of a second.
2356         hwwrite(vortex->mmio, VORTEX_IRQ_STAT, period);
2357 }
2358
2359 #if 0
2360 static void vortex_enable_timer_int(vortex_t * card)
2361 {
2362         hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2363                 hwread(card->mmio, VORTEX_IRQ_CTRL) | IRQ_TIMER | 0x60);
2364 }
2365
2366 static void vortex_disable_timer_int(vortex_t * card)
2367 {
2368         hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2369                 hwread(card->mmio, VORTEX_IRQ_CTRL) & ~IRQ_TIMER);
2370 }
2371
2372 #endif
2373 static void vortex_enable_int(vortex_t * card)
2374 {
2375         // CAsp4ISR__EnableVortexInt_void_
2376         hwwrite(card->mmio, VORTEX_CTRL,
2377                 hwread(card->mmio, VORTEX_CTRL) | CTRL_IRQ_ENABLE);
2378         hwwrite(card->mmio, VORTEX_IRQ_CTRL,
2379                 (hwread(card->mmio, VORTEX_IRQ_CTRL) & 0xffffefc0) | 0x24);
2380 }
2381
2382 static void vortex_disable_int(vortex_t * card)
2383 {
2384         hwwrite(card->mmio, VORTEX_CTRL,
2385                 hwread(card->mmio, VORTEX_CTRL) & ~CTRL_IRQ_ENABLE);
2386 }
2387
2388 static irqreturn_t vortex_interrupt(int irq, void *dev_id, struct pt_regs *regs)
2389 {
2390         vortex_t *vortex = dev_id;
2391         int i, handled;
2392         u32 source;
2393
2394         //check if the interrupt is ours.
2395         if (!(hwread(vortex->mmio, VORTEX_STAT) & 0x1))
2396                 return IRQ_NONE;
2397
2398         // This is the Interrrupt Enable flag we set before (consistency check).
2399         if (!(hwread(vortex->mmio, VORTEX_CTRL) & CTRL_IRQ_ENABLE))
2400                 return IRQ_NONE;
2401
2402         source = hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2403         // Reset IRQ flags.
2404         hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, source);
2405         hwread(vortex->mmio, VORTEX_IRQ_SOURCE);
2406         // Is at least one IRQ flag set?
2407         if (source == 0) {
2408                 printk(KERN_ERR "vortex: missing irq source\n");
2409                 return IRQ_NONE;
2410         }
2411
2412         handled = 0;
2413         // Attend every interrupt source.
2414         if (unlikely(source & IRQ_ERR_MASK)) {
2415                 if (source & IRQ_FATAL) {
2416                         printk(KERN_ERR "vortex: IRQ fatal error\n");
2417                 }
2418                 if (source & IRQ_PARITY) {
2419                         printk(KERN_ERR "vortex: IRQ parity error\n");
2420                 }
2421                 if (source & IRQ_REG) {
2422                         printk(KERN_ERR "vortex: IRQ reg error\n");
2423                 }
2424                 if (source & IRQ_FIFO) {
2425                         printk(KERN_ERR "vortex: IRQ fifo error\n");
2426                 }
2427                 if (source & IRQ_DMA) {
2428                         printk(KERN_ERR "vortex: IRQ dma error\n");
2429                 }
2430                 handled = 1;
2431         }
2432         if (source & IRQ_PCMOUT) {
2433                 /* ALSA period acknowledge. */
2434                 spin_lock(&vortex->lock);
2435                 for (i = 0; i < NR_ADB; i++) {
2436                         if (vortex->dma_adb[i].fifo_status == FIFO_START) {
2437                                 if (vortex_adbdma_bufshift(vortex, i)) ;
2438                                 spin_unlock(&vortex->lock);
2439                                 snd_pcm_period_elapsed(vortex->dma_adb[i].
2440                                                        substream);
2441                                 spin_lock(&vortex->lock);
2442                         }
2443                 }
2444 #ifndef CHIP_AU8810
2445                 for (i = 0; i < NR_WT; i++) {
2446                         if (vortex->dma_wt[i].fifo_status == FIFO_START) {
2447                                 if (vortex_wtdma_bufshift(vortex, i)) ;
2448                                 spin_unlock(&vortex->lock);
2449                                 snd_pcm_period_elapsed(vortex->dma_wt[i].
2450                                                        substream);
2451                                 spin_lock(&vortex->lock);
2452                         }
2453                 }
2454 #endif
2455                 spin_unlock(&vortex->lock);
2456                 handled = 1;
2457         }
2458         //Acknowledge the Timer interrupt
2459         if (source & IRQ_TIMER) {
2460                 hwread(vortex->mmio, VORTEX_IRQ_STAT);
2461                 handled = 1;
2462         }
2463         if (source & IRQ_MIDI) {
2464                 snd_mpu401_uart_interrupt(vortex->irq,
2465                                           vortex->rmidi->private_data, regs);
2466                 handled = 1;
2467         }
2468
2469         if (!handled) {
2470                 printk(KERN_ERR "vortex: unknown irq source %x\n", source);
2471         }
2472         return IRQ_RETVAL(handled);
2473 }
2474
2475 /* Codec */
2476
2477 #define POLL_COUNT 1000
2478 static void vortex_codec_init(vortex_t * vortex)
2479 {
2480         int i;
2481
2482         for (i = 0; i < 32; i++) {
2483                 /* the windows driver writes -i, so we write -i */
2484                 hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2485                 msleep(2);
2486         }
2487         if (0) {
2488                 hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x8068);
2489                 msleep(1);
2490                 hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2491                 msleep(1);
2492         } else {
2493                 hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2494                 msleep(2);
2495                 hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2496                 msleep(2);
2497                 hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80e8);
2498                 msleep(2);
2499                 hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x80a8);
2500                 msleep(2);
2501                 hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00a8);
2502                 msleep(2);
2503                 hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0x00e8);
2504         }
2505         for (i = 0; i < 32; i++) {
2506                 hwwrite(vortex->mmio, (VORTEX_CODEC_CHN + (i << 2)), -i);
2507                 msleep(5);
2508         }
2509         hwwrite(vortex->mmio, VORTEX_CODEC_CTRL, 0xe8);
2510         msleep(1);
2511         /* Enable codec channels 0 and 1. */
2512         hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2513                 hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_CODEC);
2514 }
2515
2516 static void
2517 vortex_codec_write(struct snd_ac97 * codec, unsigned short addr, unsigned short data)
2518 {
2519
2520         vortex_t *card = (vortex_t *) codec->private_data;
2521         unsigned int lifeboat = 0;
2522
2523         /* wait for transactions to clear */
2524         while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2525                 udelay(100);
2526                 if (lifeboat++ > POLL_COUNT) {
2527                         printk(KERN_ERR "vortex: ac97 codec stuck busy\n");
2528                         return;
2529                 }
2530         }
2531         /* write register */
2532         hwwrite(card->mmio, VORTEX_CODEC_IO,
2533                 ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2534                 ((data << VORTEX_CODEC_DATSHIFT) & VORTEX_CODEC_DATMASK) |
2535                 VORTEX_CODEC_WRITE |
2536                 (codec->num << VORTEX_CODEC_ID_SHIFT) );
2537
2538         /* Flush Caches. */
2539         hwread(card->mmio, VORTEX_CODEC_IO);
2540 }
2541
2542 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr)
2543 {
2544
2545         vortex_t *card = (vortex_t *) codec->private_data;
2546         u32 read_addr, data;
2547         unsigned lifeboat = 0;
2548
2549         /* wait for transactions to clear */
2550         while (!(hwread(card->mmio, VORTEX_CODEC_CTRL) & 0x100)) {
2551                 udelay(100);
2552                 if (lifeboat++ > POLL_COUNT) {
2553                         printk(KERN_ERR "vortex: ac97 codec stuck busy\n");
2554                         return 0xffff;
2555                 }
2556         }
2557         /* set up read address */
2558         read_addr = ((addr << VORTEX_CODEC_ADDSHIFT) & VORTEX_CODEC_ADDMASK) |
2559                 (codec->num << VORTEX_CODEC_ID_SHIFT) ;
2560         hwwrite(card->mmio, VORTEX_CODEC_IO, read_addr);
2561
2562         /* wait for address */
2563         do {
2564                 udelay(100);
2565                 data = hwread(card->mmio, VORTEX_CODEC_IO);
2566                 if (lifeboat++ > POLL_COUNT) {
2567                         printk(KERN_ERR "vortex: ac97 address never arrived\n");
2568                         return 0xffff;
2569                 }
2570         } while ((data & VORTEX_CODEC_ADDMASK) !=
2571                  (addr << VORTEX_CODEC_ADDSHIFT));
2572
2573         /* return data. */
2574         return (u16) (data & VORTEX_CODEC_DATMASK);
2575 }
2576
2577 /* SPDIF support  */
2578
2579 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode)
2580 {
2581         int i, this_38 = 0, this_04 = 0, this_08 = 0, this_0c = 0;
2582
2583         /* CAsp4Spdif::InitializeSpdifHardware(void) */
2584         hwwrite(vortex->mmio, VORTEX_SPDIF_FLAGS,
2585                 hwread(vortex->mmio, VORTEX_SPDIF_FLAGS) & 0xfff3fffd);
2586         //for (i=0x291D4; i<0x29200; i+=4)
2587         for (i = 0; i < 11; i++)
2588                 hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1 + (i << 2), 0);
2589         //hwwrite(vortex->mmio, 0x29190, hwread(vortex->mmio, 0x29190) | 0xc0000);
2590         hwwrite(vortex->mmio, VORTEX_CODEC_EN,
2591                 hwread(vortex->mmio, VORTEX_CODEC_EN) | EN_SPDIF);
2592
2593         /* CAsp4Spdif::ProgramSRCInHardware(enum  SPDIF_SR,enum  SPDIFMODE) */
2594         if (this_04 && this_08) {
2595                 int edi;
2596
2597                 i = (((0x5DC00000 / spdif_sr) + 1) >> 1);
2598                 if (i > 0x800) {
2599                         if (i < 0x1ffff)
2600                                 edi = (i >> 1);
2601                         else
2602                                 edi = 0x1ffff;
2603                 } else {
2604                         i = edi = 0x800;
2605                 }
2606                 /* this_04 and this_08 are the CASp4Src's (samplerate converters) */
2607                 vortex_src_setupchannel(vortex, this_04, edi, 0, 1,
2608                                         this_0c, 1, 0, edi, 1);
2609                 vortex_src_setupchannel(vortex, this_08, edi, 0, 1,
2610                                         this_0c, 1, 0, edi, 1);
2611         }
2612
2613         i = spdif_sr;
2614         spdif_sr |= 0x8c;
2615         switch (i) {
2616         case 32000:
2617                 this_38 &= 0xFFFFFFFE;
2618                 this_38 &= 0xFFFFFFFD;
2619                 this_38 &= 0xF3FFFFFF;
2620                 this_38 |= 0x03000000;  /* set 32khz samplerate */
2621                 this_38 &= 0xFFFFFF3F;
2622                 spdif_sr &= 0xFFFFFFFD;
2623                 spdif_sr |= 1;
2624                 break;
2625         case 44100:
2626                 this_38 &= 0xFFFFFFFE;
2627                 this_38 &= 0xFFFFFFFD;
2628                 this_38 &= 0xF0FFFFFF;
2629                 this_38 |= 0x03000000;
2630                 this_38 &= 0xFFFFFF3F;
2631                 spdif_sr &= 0xFFFFFFFC;
2632                 break;
2633         case 48000:
2634                 if (spdif_mode == 1) {
2635                         this_38 &= 0xFFFFFFFE;
2636                         this_38 &= 0xFFFFFFFD;
2637                         this_38 &= 0xF2FFFFFF;
2638                         this_38 |= 0x02000000;  /* set 48khz samplerate */
2639                         this_38 &= 0xFFFFFF3F;
2640                 } else {
2641                         /* J. Gordon Wolfe: I think this stuff is for AC3 */
2642                         this_38 |= 0x00000003;
2643                         this_38 &= 0xFFFFFFBF;
2644                         this_38 |= 0x80;
2645                 }
2646                 spdif_sr |= 2;
2647                 spdif_sr &= 0xFFFFFFFE;
2648                 break;
2649
2650         }
2651         /* looks like the next 2 lines transfer a 16-bit value into 2 8-bit
2652            registers. seems to be for the standard IEC/SPDIF initialization
2653            stuff */
2654         hwwrite(vortex->mmio, VORTEX_SPDIF_CFG0, this_38 & 0xffff);
2655         hwwrite(vortex->mmio, VORTEX_SPDIF_CFG1, this_38 >> 0x10);
2656         hwwrite(vortex->mmio, VORTEX_SPDIF_SMPRATE, spdif_sr);
2657 }
2658
2659 /* Initialization */
2660
2661 static int vortex_core_init(vortex_t * vortex)
2662 {
2663
2664         printk(KERN_INFO "Vortex: init.... ");
2665         /* Hardware Init. */
2666         hwwrite(vortex->mmio, VORTEX_CTRL, 0xffffffff);
2667         msleep(5);
2668         hwwrite(vortex->mmio, VORTEX_CTRL,
2669                 hwread(vortex->mmio, VORTEX_CTRL) & 0xffdfffff);
2670         msleep(5);
2671         /* Reset IRQ flags */
2672         hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffffffff);
2673         hwread(vortex->mmio, VORTEX_IRQ_STAT);
2674
2675         vortex_codec_init(vortex);
2676
2677 #ifdef CHIP_AU8830
2678         hwwrite(vortex->mmio, VORTEX_CTRL,
2679                 hwread(vortex->mmio, VORTEX_CTRL) | 0x1000000);
2680 #endif
2681
2682         /* Init audio engine. */
2683         vortex_adbdma_init(vortex);
2684         hwwrite(vortex->mmio, VORTEX_ENGINE_CTRL, 0x0); //, 0xc83c7e58, 0xc5f93e58
2685         vortex_adb_init(vortex);
2686         /* Init processing blocks. */
2687         vortex_fifo_init(vortex);
2688         vortex_mixer_init(vortex);
2689         vortex_srcblock_init(vortex);
2690 #ifndef CHIP_AU8820
2691         vortex_eq_init(vortex);
2692         vortex_spdif_init(vortex, 48000, 1);
2693         vortex_Vort3D(vortex, 1);
2694 #endif
2695 #ifndef CHIP_AU8810
2696         vortex_wt_init(vortex);
2697 #endif
2698         // Moved to au88x0.c
2699         //vortex_connect_default(vortex, 1);
2700
2701         vortex_settimer(vortex, 0x90);
2702         // Enable Interrupts.
2703         // vortex_enable_int() must be first !!
2704         //  hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2705         // vortex_enable_int(vortex);
2706         //vortex_enable_timer_int(vortex);
2707         //vortex_disable_timer_int(vortex);
2708
2709         printk(KERN_INFO "done.\n");
2710         spin_lock_init(&vortex->lock);
2711
2712         return 0;
2713 }
2714
2715 static int vortex_core_shutdown(vortex_t * vortex)
2716 {
2717
2718         printk(KERN_INFO "Vortex: shutdown...");
2719 #ifndef CHIP_AU8820
2720         vortex_eq_free(vortex);
2721         vortex_Vort3D(vortex, 0);
2722 #endif
2723         //vortex_disable_timer_int(vortex);
2724         vortex_disable_int(vortex);
2725         vortex_connect_default(vortex, 0);
2726         /* Reset all DMA fifos. */
2727         vortex_fifo_init(vortex);
2728         /* Erase all audio routes. */
2729         vortex_adb_init(vortex);
2730
2731         /* Disable MPU401 */
2732         //hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, hwread(vortex->mmio, VORTEX_IRQ_CTRL) & ~IRQ_MIDI);
2733         //hwwrite(vortex->mmio, VORTEX_CTRL, hwread(vortex->mmio, VORTEX_CTRL) & ~CTRL_MIDI_EN);
2734
2735         hwwrite(vortex->mmio, VORTEX_IRQ_CTRL, 0);
2736         hwwrite(vortex->mmio, VORTEX_CTRL, 0);
2737         msleep(5);
2738         hwwrite(vortex->mmio, VORTEX_IRQ_SOURCE, 0xffff);
2739
2740         printk(KERN_INFO "done.\n");
2741         return 0;
2742 }
2743
2744 /* Alsa support. */
2745
2746 static int vortex_alsafmt_aspfmt(int alsafmt)
2747 {
2748         int fmt;
2749
2750         switch (alsafmt) {
2751         case SNDRV_PCM_FORMAT_U8:
2752                 fmt = 0x1;
2753                 break;
2754         case SNDRV_PCM_FORMAT_MU_LAW:
2755                 fmt = 0x2;
2756                 break;
2757         case SNDRV_PCM_FORMAT_A_LAW:
2758                 fmt = 0x3;
2759                 break;
2760         case SNDRV_PCM_FORMAT_SPECIAL:
2761                 fmt = 0x4;      /* guess. */
2762                 break;
2763         case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
2764                 fmt = 0x5;      /* guess. */
2765                 break;
2766         case SNDRV_PCM_FORMAT_S16_LE:
2767                 fmt = 0x8;
2768                 break;
2769         case SNDRV_PCM_FORMAT_S16_BE:
2770                 fmt = 0x9;      /* check this... */
2771                 break;
2772         default:
2773                 fmt = 0x8;
2774                 printk(KERN_ERR "vortex: format unsupported %d\n", alsafmt);
2775                 break;
2776         }
2777         return fmt;
2778 }
2779
2780 /* Some not yet useful translations. */
2781 #if 0
2782 typedef enum {
2783         ASPFMTLINEAR16 = 0,     /* 0x8 */
2784         ASPFMTLINEAR8,          /* 0x1 */
2785         ASPFMTULAW,             /* 0x2 */
2786         ASPFMTALAW,             /* 0x3 */
2787         ASPFMTSPORT,            /* ? */
2788         ASPFMTSPDIF,            /* ? */
2789 } ASPENCODING;
2790
2791 static int
2792 vortex_translateformat(vortex_t * vortex, char bits, char nch, int encod)
2793 {
2794         int a, this_194;
2795
2796         if ((bits != 8) || (bits != 16))
2797                 return -1;
2798
2799         switch (encod) {
2800         case 0:
2801                 if (bits == 0x10)
2802                         a = 8;  // 16 bit
2803                 break;
2804         case 1:
2805                 if (bits == 8)
2806                         a = 1;  // 8 bit
2807                 break;
2808         case 2:
2809                 a = 2;          // U_LAW
2810                 break;
2811         case 3:
2812                 a = 3;          // A_LAW
2813                 break;
2814         }
2815         switch (nch) {
2816         case 1:
2817                 this_194 = 0;
2818                 break;
2819         case 2:
2820                 this_194 = 1;
2821                 break;
2822         case 4:
2823                 this_194 = 1;
2824                 break;
2825         case 6:
2826                 this_194 = 1;
2827                 break;
2828         }
2829         return (a);
2830 }
2831
2832 static void vortex_cdmacore_setformat(vortex_t * vortex, int bits, int nch)
2833 {
2834         short int d, this_148;
2835
2836         d = ((bits >> 3) * nch);
2837         this_148 = 0xbb80 / d;
2838 }
2839 #endif