sound/pci/azt3328.c

   1 /*
   2  *  azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168).
   3  *  Copyright (C) 2002 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
   4  *
   5  *  Framework borrowed from Bart Hartgers's als4000.c.
   6  *  Driver developed on PCI168 AP(W) version (PCI rev. 10, subsystem ID 1801),
   7  *  found in a Fujitsu-Siemens PC ("Cordant", aluminum case).
   8  *  Other versions are:
   9  *  PCI168 A(W), sub ID 1800
  10  *  PCI168 A/AP, sub ID 8000
  11  *  Please give me feedback in case you try my driver with one of these!!
  12  *
  13  * GPL LICENSE
  14  *  This program is free software; you can redistribute it and/or modify
  15  *  it under the terms of the GNU General Public License as published by
  16  *  the Free Software Foundation; either version 2 of the License, or
  17  *  (at your option) any later version.
  18  *
  19  *  This program is distributed in the hope that it will be useful,
  20  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *  GNU General Public License for more details.
  23
  24  *  You should have received a copy of the GNU General Public License
  25  *  along with this program; if not, write to the Free Software
  26  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  27  *
  28  * NOTES
  29  *  Since Aztech does not provide any chipset documentation,
  30  *  even on repeated request to various addresses,
  31  *  and the answer that was finally given was negative
  32  *  (and I was stupid enough to manage to get hold of a PCI168 soundcard
  33  *  in the first place >:-P}),
  34  *  I was forced to base this driver on reverse engineering
  35  *  (3 weeks' worth of evenings filled with driver work).
  36  *  (and no, I did NOT go the easy way: to pick up a PCI128 for 9 Euros)
  37  *
  38  *  The AZF3328 chip (note: AZF3328, *not* AZT3328, that's just the driver name
  39  *  for compatibility reasons) has the following features:
  40  *
  41  *  - builtin AC97 conformant codec (SNR over 80dB)
  42  *    (really AC97 compliant?? I really doubt it when looking
  43  *    at the mixer register layout)
  44  *  - builtin genuine OPL3
  45  *  - full duplex 16bit playback/record at independent sampling rate
  46  *  - MPU401 (+ legacy address support) FIXME: how to enable legacy addr??
  47  *  - game port (legacy address support)
  48  *  - built-in General DirectX timer having a 20 bits counter
  49  *    with 1us resolution (FIXME: where is it?)
  50  *  - I2S serial port for external DAC
  51  *  - supports 33MHz PCI spec 2.1, PCI power management 1.0, compliant with ACPI
  52  *  - supports hardware volume control
  53  *  - single chip low cost solution (128 pin QFP)
  54  *  - supports programmable Sub-vendor and Sub-system ID
  55  *    required for Microsoft's logo compliance (FIXME: where?)
  56  *  - PCI168 AP(W) card: power amplifier with 4 Watts/channel at 4 Ohms
  57  *
  58  *  Certain PCI versions of this card are susceptible to DMA traffic underruns
  59  *  in some systems (resulting in sound crackling/clicking/popping),
  60  *  probably because they don't have a DMA FIFO buffer or so.
  61  *  Overview (PCI ID/PCI subID/PCI rev.):
  62  *  - no DMA crackling on SiS735: 0x50DC/0x1801/16
  63  *  - unknown performance: 0x50DC/0x1801/10
  64  *
  65  *  Crackling happens with VIA chipsets or, in my case, an SiS735, which is
  66  *  supposed to be very fast and supposed to get rid of crackling much
  67  *  better than a VIA, yet ironically I still get crackling, like many other
  68  *  people with the same chipset.
  69  *  Possible remedies:
  70  *  - plug card into a different PCI slot, preferrably one that isn't shared
  71  *    too much (this helps a lot, but not completely!)
  72  *  - get rid of PCI VGA card, use AGP instead
  73  *  - upgrade or downgrade BIOS
  74  *  - fiddle with PCI latency settings (setpci -v -s BUSID latency_timer=XX)
  75  *    Not too helpful.
  76  *  - Disable ACPI/power management/"Auto Detect RAM/PCI Clk" in BIOS
  77  *
  78  * BUGS
  79  *  - when Ctrl-C'ing mpg321, the playback loops a bit
  80  *    (premature DMA playback reset?)
  81  *  - full-duplex sometimes breaks (IRQ management issues?).
  82  *    Once even a spontaneous REBOOT happened!!!
  83  *
  84  * TODO
  85  *  - test MPU401 MIDI playback etc.
  86  *  - power management (CONFIG_PM). See e.g. intel8x0 or cs4281.
  87  *    This would be nice since the chip runs a bit hot, and it's *required*
  88  *    anyway for proper ACPI power management. In other words: rest
  89  *    assured that I *will* implement this very soon; as soon as Linux 2.5.x
  90  *    has power management that's bugfree enough to work properly on my desktop.
  91  *  - figure out what all unknown port bits are responsible for
  92  */
  93
  94 #include <sound/driver.h>
  95 #include <asm/io.h>
  96 #include <linux/init.h>
  97 #include <linux/pci.h>
  98 #include <linux/delay.h>
  99 #include <linux/slab.h>
 100 #include <linux/gameport.h>
 101 #include <sound/core.h>
 102 #include <sound/control.h>
 103 #include <sound/pcm.h>
 104 #include <sound/rawmidi.h>
 105 #include <sound/mpu401.h>
 106 #include <sound/opl3.h>
 107 #define SNDRV_GET_ID
 108 #include <sound/initval.h>
 109 #include "azt3328.h"
 110
 111 MODULE_AUTHOR("Andreas Mohr <hw7oshyuv3001@sneakemail.com>");
 112 MODULE_DESCRIPTION("Aztech AZF3328 (PCI168)");
 113 MODULE_LICENSE("GPL");
 114 MODULE_CLASSES("{sound}");
 115 MODULE_DEVICES("{{Aztech,AZF3328}}");
 116
 117 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
 118 #define SUPPORT_JOYSTICK 1
 119 #endif
 120
 121 #define DEBUG_MISC      0
 122 #define DEBUG_CALLS     0
 123 #define DEBUG_MIXER     0
 124 #define DEBUG_PLAY_REC  0
 125 #define DEBUG_IO        0
 126 #define MIXER_TESTING   0
 127
 128 #if DEBUG_MISC
 129 #define snd_azf3328_dbgmisc(format, args...) printk(KERN_ERR format, ##args)
 130 #else
 131 #define snd_azf3328_dbgmisc(format, args...)
 132 #endif
 133
 134 #if DEBUG_CALLS
 135 #define snd_azf3328_dbgcalls(format, args...) printk(format, ##args)
 136 #define snd_azf3328_dbgcallenter() printk(KERN_ERR "entering %s\n", __FUNCTION__)
 137 #define snd_azf3328_dbgcallleave() printk(KERN_ERR "leaving %s\n", __FUNCTION__)
 138 #else
 139 #define snd_azf3328_dbgcalls(format, args...)
 140 #define snd_azf3328_dbgcallenter()
 141 #define snd_azf3328_dbgcallleave()
 142 #endif
 143
 144 #if DEBUG_MIXER
 145 #define snd_azf3328_dbgmixer(format, args...) printk(format, ##args)
 146 #else
 147 #define snd_azf3328_dbgmixer(format, args...)
 148 #endif
 149
 150 #if DEBUG_PLAY_REC
 151 #define snd_azf3328_dbgplay(format, args...) printk(KERN_ERR format, ##args)
 152 #else
 153 #define snd_azf3328_dbgplay(format, args...)
 154 #endif
 155
 156 #if DEBUG_IO
 157 #define snd_azf3328_dbgio(chip, where) \
 158             printk(KERN_ERR "%s: IDX_IO_PLAY_FLAGS %04x, IDX_IO_PLAY_IRQMASK %04x, IDX_IO_IRQSTATUS %04x\n", where, inw(chip->codec_port+IDX_IO_PLAY_FLAGS), inw(chip->codec_port+IDX_IO_PLAY_IRQMASK), inw(chip->codec_port+IDX_IO_IRQSTATUS))
 159 #else
 160 #define snd_azf3328_dbgio(chip, where)
 161 #endif
 162
 163 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 164 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 165 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
 166 #ifdef SUPPORT_JOYSTICK
 167 static int joystick[SNDRV_CARDS];
 168 #endif
 169
 170 MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 171 MODULE_PARM_DESC(index, "Index value for AZF3328 soundcard.");
 172 MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
 173 MODULE_PARM(id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
 174 MODULE_PARM_DESC(id, "ID string for AZF3328 soundcard.");
 175 MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
 176 MODULE_PARM(enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 177 MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard.");
 178 MODULE_PARM_SYNTAX(enable, SNDRV_INDEX_DESC);
 179 #ifdef SUPPORT_JOYSTICK
 180 MODULE_PARM(joystick, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 181 MODULE_PARM_DESC(joystick, "Enable joystick for AZF3328 soundcard.");
 182 MODULE_PARM_SYNTAX(joystick, SNDRV_BOOLEAN_FALSE_DESC);
 183 #endif
 184
 185 typedef struct _snd_azf3328 azf3328_t;
 186 #define chip_t azf3328_t
 187
 188 struct _snd_azf3328 {
 189         int irq;
 190
 191         unsigned long codec_port;
 192         struct resource *res_codec_port;
 193         unsigned long io2_port;
 194         struct resource *res_io2_port;
 195         unsigned long mpu_port;
 196         struct resource *res_mpu_port;
 197         unsigned long synth_port;
 198         struct resource *res_synth_port;
 199         unsigned long mixer_port;
 200         struct resource *res_mixer_port;
 201
 202 #ifdef SUPPORT_JOYSTICK
 203         struct gameport gameport;
 204         struct resource *res_joystick;
 205 #endif
 206
 207         struct pci_dev *pci;
 208         snd_card_t *card;
 209
 210         snd_pcm_t *pcm;
 211         snd_rawmidi_t *rmidi;
 212         snd_pcm_substream_t *playback_substream;
 213         snd_pcm_substream_t *capture_substream;
 214         unsigned int is_playing;
 215         unsigned int is_recording;
 216
 217         spinlock_t reg_lock;
 218 };
 219
 220 static struct pci_device_id snd_azf3328_ids[] = {
 221         { 0x122D, 0x50DC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },   /* PCI168/3328 */
 222         { 0x122D, 0x80DA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },   /* 3328 */
 223         { 0, }
 224 };
 225
 226 MODULE_DEVICE_TABLE(pci, snd_azf3328_ids);
 227
 228 void snd_azf3328_io2_write(azf3328_t *chip, int reg, unsigned char value)
 229 {
 230         outb(value, chip->io2_port + reg);
 231 }
 232
 233 unsigned char snd_azf3328_io2_read(azf3328_t *chip, int reg)
 234 {
 235         return inb(chip->io2_port + reg);
 236 }
 237
 238 void snd_azf3328_mixer_write(azf3328_t *chip, int reg, unsigned long value, int type)
 239 {
 240         switch(type) {
 241         case WORD_VALUE:
 242                 outw(value, chip->mixer_port + reg);
 243                 break;
 244         case DWORD_VALUE:
 245                 outl(value, chip->mixer_port + reg);
 246                 break;
 247         case BYTE_VALUE:
 248                 outb(value, chip->mixer_port + reg);
 249                 break;
 250         }
 251 }
 252
 253 unsigned long snd_azf3328_mixer_read(azf3328_t *chip, int reg, int type)
 254 {
 255         unsigned long res = 0;
 256
 257         switch(type) {
 258         case WORD_VALUE:
 259                 res = (unsigned long)inw(chip->mixer_port + reg);
 260                 break;
 261         case DWORD_VALUE:
 262                 res = (unsigned long)inl(chip->mixer_port + reg);
 263                 break;
 264         case BYTE_VALUE:
 265                 res = (unsigned long)inb(chip->mixer_port + reg);
 266                 break;
 267         }
 268
 269         return res;
 270 }
 271
 272 void snd_azf3328_mixer_set_mute(azf3328_t *chip, int reg, int do_mute)
 273 {
 274         unsigned char oldval;
 275
 276         /* the mute bit is on the *second* (i.e. right) register of a
 277          * left/right channel setting */
 278         oldval = inb(chip->mixer_port + reg + 1);
 279         if (do_mute)
 280                 oldval |= 0x80;
 281         else
 282                 oldval &= ~0x80;
 283         outb(oldval, chip->mixer_port + reg + 1);
 284 }
 285
 286 void snd_azf3328_mixer_write_volume_gradually(azf3328_t *chip, int reg, unsigned char dst_vol_left, unsigned char dst_vol_right, int chan_sel, int delay)
 287 {
 288         unsigned char curr_vol_left = 0, curr_vol_right = 0;
 289         int left_done = 0, right_done = 0;
 290
 291         snd_azf3328_dbgcallenter();
 292         if (chan_sel & SET_CHAN_LEFT)
 293                 curr_vol_left  = inb(chip->mixer_port + reg + 1);
 294         else
 295                 left_done = 1;
 296         if (chan_sel & SET_CHAN_RIGHT)
 297                 curr_vol_right = inb(chip->mixer_port + reg + 0);
 298         else
 299                 right_done = 1;
 300
 301         /* take care of muting flag (0x80) contained in left channel */
 302         if (curr_vol_left & 0x80)
 303                 dst_vol_left |= 0x80;
 304         else
 305                 dst_vol_left &= ~0x80;
 306
 307         do
 308         {
 309                 if (!left_done)
 310                 {
 311                         if (curr_vol_left > dst_vol_left)
 312                                 curr_vol_left--;
 313                         else
 314                         if (curr_vol_left < dst_vol_left)
 315                                 curr_vol_left++;
 316                         else
 317                             left_done = 1;
 318                         outb(curr_vol_left, chip->mixer_port + reg + 1);
 319                 }
 320                 if (!right_done)
 321                 {
 322                         if (curr_vol_right > dst_vol_right)
 323                                 curr_vol_right--;
 324                         else
 325                         if (curr_vol_right < dst_vol_right)
 326                                 curr_vol_right++;
 327                         else
 328                             right_done = 1;
 329                         /* during volume change, the right channel is crackling
 330                          * somewhat more than the left channel, unfortunately.
 331                          * This seems to be a hardware issue. */
 332                         outb(curr_vol_right, chip->mixer_port + reg + 0);
 333                 }
 334                 if (delay)
 335                         mdelay(delay);
 336         }
 337         while ((!left_done) || (!right_done));
 338         snd_azf3328_dbgcallleave();
 339 }
 340
 341 /*
 342  * general mixer element
 343  */
 344 typedef struct azf3328_mixer_reg {
 345         unsigned int reg;
 346         unsigned int lchan_shift, rchan_shift;
 347         unsigned int mask;
 348         unsigned int invert: 1;
 349         unsigned int stereo: 1;
 350         unsigned int enum_c: 4;
 351 } azf3328_mixer_reg_t;
 352
 353 #define COMPOSE_MIXER_REG(reg,lchan_shift,rchan_shift,mask,invert,stereo,enum_c) \
 354  ((reg) | (lchan_shift << 8) | (rchan_shift << 12) | (mask << 16) | (invert << 24) | (stereo << 25) | (enum_c << 26))
 355
 356 static void snd_azf3328_mixer_reg_decode(azf3328_mixer_reg_t *r, unsigned long val)
 357 {
 358         r->reg = val & 0xff;
 359         r->lchan_shift = (val >> 8) & 0x0f;
 360         r->rchan_shift = (val >> 12) & 0x0f;
 361         r->mask = (val >> 16) & 0xff;
 362         r->invert = (val >> 24) & 1;
 363         r->stereo = (val >> 25) & 1;
 364         r->enum_c = (val >> 26) & 0x0f;
 365 }
 366
 367 /*
 368  * mixer switches/volumes
 369  */
 370
 371 #define AZF3328_MIXER_SWITCH(xname, reg, shift, invert) \
 372 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 373   .info = snd_azf3328_info_mixer, \
 374   .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
 375   .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0x1, invert, 0, 0), \
 376 }
 377
 378 #define AZF3328_MIXER_VOL_STEREO(xname, reg, mask, invert) \
 379 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 380   .info = snd_azf3328_info_mixer, \
 381   .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
 382   .private_value = COMPOSE_MIXER_REG(reg, 8, 0, mask, invert, 1, 0), \
 383 }
 384
 385 #define AZF3328_MIXER_VOL_MONO(xname, reg, mask, is_right_chan) \
 386 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 387   .info = snd_azf3328_info_mixer, \
 388   .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
 389   .private_value = COMPOSE_MIXER_REG(reg, is_right_chan ? 0 : 8, 0, mask, 1, 0, 0), \
 390 }
 391
 392 #define AZF3328_MIXER_VOL_SPECIAL(xname, reg, mask, shift, invert) \
 393 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 394   .info = snd_azf3328_info_mixer, \
 395   .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
 396   .private_value = COMPOSE_MIXER_REG(reg, shift, 0, mask, invert, 0, 0), \
 397 }
 398
 399 #define AZF3328_MIXER_ENUM(xname, reg, enum_c, shift) \
 400 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 401   .info = snd_azf3328_info_mixer_enum, \
 402   .get = snd_azf3328_get_mixer_enum, .put = snd_azf3328_put_mixer_enum, \
 403   .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0, 0, 0, enum_c), \
 404 }
 405
 406 static int snd_azf3328_info_mixer(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 407 {
 408         azf3328_mixer_reg_t reg;
 409
 410         snd_azf3328_dbgcallenter();
 411         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 412         uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 413         uinfo->count = reg.stereo + 1;
 414         uinfo->value.integer.min = 0;
 415         uinfo->value.integer.max = reg.mask;
 416         snd_azf3328_dbgcallleave();
 417         return 0;
 418 }
 419
 420 static int snd_azf3328_get_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 421 {
 422         azf3328_t *chip = snd_kcontrol_chip(kcontrol);
 423         azf3328_mixer_reg_t reg;
 424         unsigned int oreg, val;
 425
 426         snd_azf3328_dbgcallenter();
 427         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 428
 429         oreg = inw(chip->mixer_port + reg.reg);
 430         val = (oreg >> reg.lchan_shift) & reg.mask;
 431         if (reg.invert)
 432                 val = reg.mask - val;
 433         ucontrol->value.integer.value[0] = val;
 434         if (reg.stereo) {
 435                 val = (oreg >> reg.rchan_shift) & reg.mask;
 436                 if (reg.invert)
 437                         val = reg.mask - val;
 438                 ucontrol->value.integer.value[1] = val;
 439         }
 440         snd_azf3328_dbgmixer("get: %02x is %04x -> vol %02lx|%02lx (shift %02d|%02d, mask %02x, inv. %d, stereo %d)\n", reg.reg, oreg, ucontrol->value.integer.value[0], ucontrol->value.integer.value[1], reg.lchan_shift, reg.rchan_shift, reg.mask, reg.invert, reg.stereo);
 441         snd_azf3328_dbgcallleave();
 442         return 0;
 443 }
 444
 445 static int snd_azf3328_put_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 446 {
 447         azf3328_t *chip = snd_kcontrol_chip(kcontrol);
 448         azf3328_mixer_reg_t reg;
 449         unsigned int oreg, nreg, val;
 450
 451         snd_azf3328_dbgcallenter();
 452         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 453         oreg = inw(chip->mixer_port + reg.reg);
 454         val = ucontrol->value.integer.value[0] & reg.mask;
 455         if (reg.invert)
 456                 val = reg.mask - val;
 457         nreg = oreg & ~(reg.mask << reg.lchan_shift);
 458         nreg |= (val << reg.lchan_shift);
 459         if (reg.stereo) {
 460                 val = ucontrol->value.integer.value[1] & reg.mask;
 461                 if (reg.invert)
 462                         val = reg.mask - val;
 463                 nreg &= ~(reg.mask << reg.rchan_shift);
 464                 nreg |= (val << reg.rchan_shift);
 465         }
 466         if (reg.mask >= 0x07) /* it's a volume control, so better take care */
 467                 snd_azf3328_mixer_write_volume_gradually(chip, reg.reg, nreg >> 8, nreg & 0xff, SET_CHAN_LEFT|SET_CHAN_RIGHT, 0); /* just set both channels, doesn't matter */
 468         else
 469                 outw(nreg, chip->mixer_port + reg.reg);
 470
 471         snd_azf3328_dbgmixer("put: %02x to %02lx|%02lx, oreg %04x; shift %02d|%02d -> nreg %04x; after: %04x\n", reg.reg, ucontrol->value.integer.value[0], ucontrol->value.integer.value[1], oreg, reg.lchan_shift, reg.rchan_shift, nreg, inw(chip->mixer_port + reg.reg));
 472         snd_azf3328_dbgcallleave();
 473         return (nreg != oreg);
 474 }
 475
 476 static int snd_azf3328_info_mixer_enum(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 477 {
 478         azf3328_mixer_reg_t reg;
 479         static char *texts1[2] = { "ModemOut1", "ModemOut2" };
 480         static char *texts2[2] = { "MonoSelectSource1", "MonoSelectSource2" };
 481         static char *texts3[8] = {
 482                 "Mic", "CD", "Video", "Aux", "Line",
 483                 "Mix", "Mix Mono", "Phone"
 484         };
 485
 486         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 487         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 488         uinfo->count = (reg.reg == IDX_MIXER_REC_SELECT) ? 2 : 1;
 489         uinfo->value.enumerated.items = reg.enum_c;
 490         if (uinfo->value.enumerated.item > reg.enum_c - 1U)
 491                 uinfo->value.enumerated.item = reg.enum_c - 1U;
 492         if (reg.reg == IDX_MIXER_ADVCTL2)
 493         {
 494                 if (reg.lchan_shift == 8) /* modem out sel */
 495                         strcpy(uinfo->value.enumerated.name, texts1[uinfo->value.enumerated.item]);
 496                 else /* mono sel source */
 497                         strcpy(uinfo->value.enumerated.name, texts2[uinfo->value.enumerated.item]);
 498         }
 499         else
 500                 strcpy(uinfo->value.enumerated.name, texts3[uinfo->value.enumerated.item]
 501 );
 502         return 0;
 503 }
 504
 505 static int snd_azf3328_get_mixer_enum(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 506 {
 507         azf3328_mixer_reg_t reg;
 508         azf3328_t *chip = snd_kcontrol_chip(kcontrol);
 509         unsigned short val;
 510
 511         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 512         val = inw(chip->mixer_port + reg.reg);
 513         if (reg.reg == IDX_MIXER_REC_SELECT)
 514         {
 515                 ucontrol->value.enumerated.item[0] = (val >> 8) & (reg.enum_c - 1);
 516                 ucontrol->value.enumerated.item[1] = (val >> 0) & (reg.enum_c - 1);
 517         }
 518         else
 519                 ucontrol->value.enumerated.item[0] = (val >> reg.lchan_shift) & (reg.enum_c - 1);
 520         snd_azf3328_dbgmixer("get_enum: %02x is %04x -> %d|%d (shift %02d, enum_c %d)\n", reg.reg, val, ucontrol->value.enumerated.item[0], ucontrol->value.enumerated.item[1], reg.lchan_shift, reg.enum_c);
 521         return 0;
 522 }
 523
 524 static int snd_azf3328_put_mixer_enum(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 525 {
 526         azf3328_mixer_reg_t reg;
 527         azf3328_t *chip = snd_kcontrol_chip(kcontrol);
 528         unsigned int oreg, nreg, val;
 529
 530         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 531         oreg = inw(chip->mixer_port + reg.reg);
 532         val = oreg;
 533         if (reg.reg == IDX_MIXER_REC_SELECT)
 534         {
 535                 if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U ||
 536                 ucontrol->value.enumerated.item[1] > reg.enum_c - 1U)
 537                         return -EINVAL;
 538                 val = (ucontrol->value.enumerated.item[0] << 8) |
 539                       (ucontrol->value.enumerated.item[1] << 0);
 540         }
 541         else
 542         {
 543                 if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U)
 544                         return -EINVAL;
 545                 val &= ~((reg.enum_c - 1) << reg.lchan_shift);
 546                 val |= (ucontrol->value.enumerated.item[0] << reg.lchan_shift);
 547         }
 548         outw(val, chip->mixer_port + reg.reg);
 549         nreg = val;
 550
 551         snd_azf3328_dbgmixer("put_enum: %02x to %04x, oreg %04x\n", reg.reg, val, oreg);
 552         return (nreg != oreg);
 553 }
 554
 555 #define NUM_CONTROLS(ary) (sizeof(ary) / sizeof(snd_kcontrol_new_t))
 556
 557 static snd_kcontrol_new_t snd_azf3328_mixer_controls[] __devinitdata = {
 558         AZF3328_MIXER_SWITCH("Master Playback Switch", IDX_MIXER_PLAY_MASTER, 15, 1),
 559         AZF3328_MIXER_VOL_STEREO("Master Playback Volume", IDX_MIXER_PLAY_MASTER, 0x1f, 1),
 560         AZF3328_MIXER_SWITCH("Wave Playback Switch", IDX_MIXER_WAVEOUT, 15, 1),
 561         AZF3328_MIXER_VOL_STEREO("Wave Playback Volume", IDX_MIXER_WAVEOUT, 0x1f, 1),
 562         AZF3328_MIXER_SWITCH("Wave Playback 3D Bypass", IDX_MIXER_ADVCTL2, 7, 1),
 563         AZF3328_MIXER_SWITCH("FM Playback Switch", IDX_MIXER_FMSYNTH, 15, 1),
 564         AZF3328_MIXER_VOL_STEREO("FM Playback Volume", IDX_MIXER_FMSYNTH, 0x1f, 1),
 565         AZF3328_MIXER_SWITCH("CD Playback Switch", IDX_MIXER_CDAUDIO, 15, 1),
 566         AZF3328_MIXER_VOL_STEREO("CD Playback Volume", IDX_MIXER_CDAUDIO, 0x1f, 1),
 567         AZF3328_MIXER_SWITCH("Capture Switch", IDX_MIXER_REC_VOLUME, 15, 1),
 568         AZF3328_MIXER_VOL_STEREO("Capture Volume", IDX_MIXER_REC_VOLUME, 0x0f, 0),
 569         AZF3328_MIXER_ENUM("Capture Source", IDX_MIXER_REC_SELECT, 8, 0),
 570         AZF3328_MIXER_SWITCH("Mic Playback Switch", IDX_MIXER_MIC, 15, 1),
 571         AZF3328_MIXER_VOL_MONO("Mic Playback Volume", IDX_MIXER_MIC, 0x1f, 1),
 572         AZF3328_MIXER_SWITCH("Mic Boost (+20dB)", IDX_MIXER_MIC, 6, 0),
 573         AZF3328_MIXER_SWITCH("Line Playback Switch", IDX_MIXER_LINEIN, 15, 1),
 574         AZF3328_MIXER_VOL_STEREO("Line Playback Volume", IDX_MIXER_LINEIN, 0x1f, 1),
 575         AZF3328_MIXER_SWITCH("PCBeep Playback Switch", IDX_MIXER_PCBEEP, 15, 1),
 576         AZF3328_MIXER_VOL_SPECIAL("PCBeep Playback Volume", IDX_MIXER_PCBEEP, 0x0f, 1, 1),
 577         AZF3328_MIXER_SWITCH("Video Playback Switch", IDX_MIXER_VIDEO, 15, 1),
 578         AZF3328_MIXER_VOL_STEREO("Video Playback Volume", IDX_MIXER_VIDEO, 0x1f, 1),
 579         AZF3328_MIXER_SWITCH("Aux Playback Switch", IDX_MIXER_AUX, 15, 1),
 580         AZF3328_MIXER_VOL_STEREO("Aux Playback Volume", IDX_MIXER_AUX, 0x1f, 1),
 581         AZF3328_MIXER_SWITCH("Modem Playback Switch", IDX_MIXER_MODEMOUT, 15, 1),
 582         AZF3328_MIXER_VOL_MONO("Modem Playback Volume", IDX_MIXER_MODEMOUT, 0x1f, 1),
 583         AZF3328_MIXER_SWITCH("Modem Capture Switch", IDX_MIXER_MODEMIN, 15, 1),
 584         AZF3328_MIXER_VOL_MONO("Modem Capture Volume", IDX_MIXER_MODEMIN, 0x1f, 1),
 585         AZF3328_MIXER_ENUM("Modem Out Select", IDX_MIXER_ADVCTL2, 2, 8),
 586         AZF3328_MIXER_ENUM("Mono Select Source", IDX_MIXER_ADVCTL2, 2, 9),
 587         AZF3328_MIXER_VOL_SPECIAL("Tone Control - Treble", IDX_MIXER_BASSTREBLE, 0x07, 1, 0),
 588         AZF3328_MIXER_VOL_SPECIAL("Tone Control - Bass", IDX_MIXER_BASSTREBLE, 0x07, 9, 0),
 589         AZF3328_MIXER_SWITCH("3D Control - Toggle", IDX_MIXER_ADVCTL2, 13, 0),
 590         AZF3328_MIXER_VOL_SPECIAL("3D Control - Volume", IDX_MIXER_ADVCTL1, 0x07, 1, 0), /* "3D Width" */
 591         AZF3328_MIXER_VOL_SPECIAL("3D Control - Space", IDX_MIXER_ADVCTL1, 0x03, 8, 0), /* "Hifi 3D" */
 592 #if MIXER_TESTING
 593         AZF3328_MIXER_SWITCH("0", IDX_MIXER_ADVCTL2, 0, 0),
 594         AZF3328_MIXER_SWITCH("1", IDX_MIXER_ADVCTL2, 1, 0),
 595         AZF3328_MIXER_SWITCH("2", IDX_MIXER_ADVCTL2, 2, 0),
 596         AZF3328_MIXER_SWITCH("3", IDX_MIXER_ADVCTL2, 3, 0),
 597         AZF3328_MIXER_SWITCH("4", IDX_MIXER_ADVCTL2, 4, 0),
 598         AZF3328_MIXER_SWITCH("5", IDX_MIXER_ADVCTL2, 5, 0),
 599         AZF3328_MIXER_SWITCH("6", IDX_MIXER_ADVCTL2, 6, 0),
 600         AZF3328_MIXER_SWITCH("7", IDX_MIXER_ADVCTL2, 7, 0),
 601         AZF3328_MIXER_SWITCH("8", IDX_MIXER_ADVCTL2, 8, 0),
 602         AZF3328_MIXER_SWITCH("9", IDX_MIXER_ADVCTL2, 9, 0),
 603         AZF3328_MIXER_SWITCH("10", IDX_MIXER_ADVCTL2, 10, 0),
 604         AZF3328_MIXER_SWITCH("11", IDX_MIXER_ADVCTL2, 11, 0),
 605         AZF3328_MIXER_SWITCH("12", IDX_MIXER_ADVCTL2, 12, 0),
 606         AZF3328_MIXER_SWITCH("13", IDX_MIXER_ADVCTL2, 13, 0),
 607         AZF3328_MIXER_SWITCH("14", IDX_MIXER_ADVCTL2, 14, 0),
 608         AZF3328_MIXER_SWITCH("15", IDX_MIXER_ADVCTL2, 15, 0),
 609 #endif
 610 };
 611
 612 #define AZF3328_INIT_VALUES (sizeof(snd_azf3328_init_values)/sizeof(unsigned int)/2)
 613
 614 static unsigned int snd_azf3328_init_values[][2] = {
 615         { IDX_MIXER_PLAY_MASTER,        MIXER_MUTE_MASK|0x1f1f },
 616         { IDX_MIXER_MODEMOUT,           MIXER_MUTE_MASK|0x1f1f },
 617         { IDX_MIXER_BASSTREBLE,         0x0000 },
 618         { IDX_MIXER_PCBEEP,             MIXER_MUTE_MASK|0x1f1f },
 619         { IDX_MIXER_MODEMIN,            MIXER_MUTE_MASK|0x1f1f },
 620         { IDX_MIXER_MIC,                MIXER_MUTE_MASK|0x001f },
 621         { IDX_MIXER_LINEIN,             MIXER_MUTE_MASK|0x1f1f },
 622         { IDX_MIXER_CDAUDIO,            MIXER_MUTE_MASK|0x1f1f },
 623         { IDX_MIXER_VIDEO,              MIXER_MUTE_MASK|0x1f1f },
 624         { IDX_MIXER_AUX,                MIXER_MUTE_MASK|0x1f1f },
 625         { IDX_MIXER_WAVEOUT,            MIXER_MUTE_MASK|0x1f1f },
 626         { IDX_MIXER_FMSYNTH,            MIXER_MUTE_MASK|0x1f1f },
 627         { IDX_MIXER_REC_VOLUME,         MIXER_MUTE_MASK|0x0707 },
 628 };
 629
 630 static int __devinit snd_azf3328_mixer_new(azf3328_t *chip)
 631 {
 632         snd_card_t *card;
 633         snd_kcontrol_new_t *sw;
 634         unsigned int idx;
 635         int err;
 636
 637         snd_azf3328_dbgcallenter();
 638         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
 639
 640         card = chip->card;
 641
 642         /* mixer reset */
 643         snd_azf3328_mixer_write(chip, IDX_MIXER_RESET, 0x0, WORD_VALUE);
 644
 645         /* mute and zero volume channels */
 646         for (idx = 0; idx < AZF3328_INIT_VALUES; idx++) {
 647                 snd_azf3328_mixer_write(chip, snd_azf3328_init_values[idx][0], snd_azf3328_init_values[idx][1], WORD_VALUE);
 648         }
 649
 650         /* add mixer controls */
 651         sw = snd_azf3328_mixer_controls;
 652         for (idx = 0; idx < NUM_CONTROLS(snd_azf3328_mixer_controls); idx++, sw++) {
 653                 if ((err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip))) < 0)
 654                         return err;
 655         }
 656         snd_component_add(card, "AZF3328 mixer");
 657         strcpy(card->mixername, "AZF3328 mixer");
 658
 659         snd_azf3328_dbgcallleave();
 660         return 0;
 661 }
 662
 663 static int snd_azf3328_hw_params(snd_pcm_substream_t * substream,
 664                                  snd_pcm_hw_params_t * hw_params)
 665 {
 666         int res;
 667         snd_azf3328_dbgcallenter();
 668         res = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 669         snd_azf3328_dbgcallleave();
 670         return res;
 671 }
 672
 673 static int snd_azf3328_hw_free(snd_pcm_substream_t * substream)
 674 {
 675         snd_azf3328_dbgcallenter();
 676         snd_pcm_lib_free_pages(substream);
 677         snd_azf3328_dbgcallleave();
 678         return 0;
 679 }
 680
 681 static void snd_azf3328_setfmt(azf3328_t *chip,
 682                                unsigned int reg,
 683                                unsigned int bitrate,
 684                                unsigned int format_width,
 685                                unsigned int channels
 686 )
 687 {
 688         unsigned int val = 0xff00;
 689         unsigned long flags;
 690
 691         snd_azf3328_dbgcallenter();
 692         switch (bitrate) {
 693         case  5512: val |= 0x0d; break; /* the AZF3328 names it "5510" for some strange reason */
 694         case  6620: val |= 0x0b; break;
 695         case  8000: val |= 0x00; break;
 696         case  9600: val |= 0x08; break;
 697         case 11025: val |= 0x01; break;
 698         case 16000: val |= 0x02; break;
 699         case 22050: val |= 0x03; break;
 700         case 32000: val |= 0x04; break;
 701         case 44100: val |= 0x05; break;
 702         case 48000: val |= 0x06; break;
 703         case 64000: val |= 0x07; break;
 704         default:
 705                 snd_printk("unknown bitrate %d, assuming 44.1kHz!\n", bitrate);
 706                 val |= 0x05; /* 44100 */
 707                 break;
 708         }
 709         /* val = 0xff07; 3m27.993s (65301Hz; -> 64000Hz???) */
 710         /* val = 0xff09; 17m15.098s (13123,478Hz; -> 12000Hz???) */
 711         /* val = 0xff0a; 47m30.599s (4764,891Hz; -> 4800Hz???) */
 712         /* val = 0xff0c; 57m0.510s (4010,263Hz; -> 4000Hz???) */
 713         /* val = 0xff05; 5m11.556s (... -> 44100Hz) */
 714         /* val = 0xff03; 10m21.529s (21872,463Hz; -> 22050Hz???) */
 715         /* val = 0xff0f; 20m41.883s (10937,993Hz; -> 11025Hz???) */
 716         /* val = 0xff0d; 41m23.135s (5523,600Hz; -> 5512Hz???) */
 717         /* val = 0xff0e; 28m30.777s (8017Hz; -> 8000Hz???) */
 718         if (channels == 2)
 719                 val |= SOUNDFORMAT_FLAG_2CHANNELS;
 720
 721         if (format_width == 16)
 722                 val |= SOUNDFORMAT_FLAG_16BIT;
 723
 724         spin_lock_irqsave(&chip->reg_lock, flags);
 725
 726         /* set bitrate/format */
 727         outw(val, chip->codec_port+reg);
 728
 729         /* changing the bitrate/format settings switches off the
 730          * audio output with an annoying click in case of 8/16bit format change
 731          * (maybe shutting down DAC/ADC?), thus immediately
 732          * do some tweaking to reenable it and get rid of the clicking
 733          * (FIXME: yes, it works, but what exactly am I doing here?? :)
 734          * FIXME: does this have some side effects for full-duplex
 735          * or other dramatic side effects? */
 736         if (reg == IDX_IO_PLAY_SOUNDFORMAT) /* only do it for playback */
 737                 outw(inw(chip->codec_port + IDX_IO_PLAY_FLAGS)|DMA_PLAY_SOMETHING1|DMA_PLAY_SOMETHING2|SOMETHING_ALMOST_ALWAYS_SET|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_PLAY_FLAGS);
 738
 739         spin_unlock_irqrestore(&chip->reg_lock, flags);
 740         snd_azf3328_dbgcallleave();
 741 }
 742
 743 static void snd_azf3328_setdmaa(azf3328_t *chip,
 744                                 long unsigned int addr,
 745                                 unsigned int count,
 746                                 unsigned int size,
 747                                 int do_recording)
 748 {
 749         long unsigned int addr1;
 750         long unsigned int addr2;
 751         unsigned int count1;
 752         unsigned int count2;
 753         unsigned long flags;
 754         int reg_offs = do_recording ? 0x20 : 0x00;
 755
 756         snd_azf3328_dbgcallenter();
 757         /* AZF3328 uses a two buffer pointer DMA playback approach */
 758         if (!chip->is_playing)
 759         {
 760                 addr1 = addr;
 761                 addr2 = addr+(size/2);
 762                 count1 = (size/2)-1;
 763                 count2 = (size/2)-1;
 764 #if DEBUG_PLAY_REC
 765                 snd_azf3328_dbgplay("setting dma: buf1 %08lx[%d], buf2 %08lx[%d]\n", addr1, count1, addr2, count2);
 766 #endif
 767                 spin_lock_irqsave(&chip->reg_lock, flags);
 768                 outl(addr1, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_START_1);
 769                 outl(addr2, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_START_2);
 770                 outw(count1, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_LEN_1);
 771                 outw(count2, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_LEN_2);
 772                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 773         }
 774         snd_azf3328_dbgcallleave();
 775 }
 776
 777 static int snd_azf3328_playback_prepare(snd_pcm_substream_t *substream)
 778 {
 779 #if 0
 780         azf3328_t *chip = snd_pcm_substream_chip(substream);
 781         snd_pcm_runtime_t *runtime = substream->runtime;
 782         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 783         unsigned int count = snd_pcm_lib_period_bytes(substream);
 784 #endif
 785
 786         snd_azf3328_dbgcallenter();
 787 #if 0
 788         snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
 789         snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 0);
 790 #endif
 791         snd_azf3328_dbgcallleave();
 792         return 0;
 793 }
 794
 795 static int snd_azf3328_capture_prepare(snd_pcm_substream_t * substream)
 796 {
 797 #if 0
 798         azf3328_t *chip = snd_pcm_substream_chip(substream);
 799         snd_pcm_runtime_t *runtime = substream->runtime;
 800         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 801         unsigned int count = snd_pcm_lib_period_bytes(substream);
 802 #endif
 803
 804         snd_azf3328_dbgcallenter();
 805 #if 0
 806         snd_azf3328_setfmt(chip, IDX_IO_REC_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
 807         snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 1);
 808 #endif
 809         snd_azf3328_dbgcallleave();
 810         return 0;
 811 }
 812
 813 static int snd_azf3328_playback_trigger(snd_pcm_substream_t * substream, int cmd)
 814 {
 815         unsigned long flags;
 816         azf3328_t *chip = snd_pcm_substream_chip(substream);
 817         snd_pcm_runtime_t *runtime = substream->runtime;
 818         int result = 0;
 819         unsigned int status1;
 820
 821         snd_azf3328_dbgcalls("snd_azf3328_playback_trigger cmd %d\n", cmd);
 822         switch (cmd) {
 823         case SNDRV_PCM_TRIGGER_START:
 824
 825                 snd_azf3328_dbgio(chip, "trigger1");
 826
 827                 /* mute WaveOut */
 828                 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
 829
 830                 snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
 831
 832                 spin_lock_irqsave(&chip->reg_lock, flags);
 833                 /* stop playback */
 834                 status1 = inw(chip->codec_port+IDX_IO_PLAY_FLAGS);
 835                 status1 &= ~DMA_RESUME;
 836                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 837
 838                 /* FIXME: clear interrupts or what??? */
 839                 outw(0xffff, chip->codec_port+IDX_IO_PLAY_IRQMASK);
 840                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 841
 842                 snd_azf3328_setdmaa(chip, runtime->dma_addr, snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream), 0);
 843
 844                 spin_lock_irqsave(&chip->reg_lock, flags);
 845 #if WIN9X
 846                 /* FIXME: enable playback/recording??? */
 847                 status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2;
 848                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 849
 850                 /* start playback again */
 851                 /* FIXME: what is this value (0x0010)??? */
 852                 status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
 853                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 854 #else /* NT4 */
 855                 outw(0x00, chip->codec_port+IDX_IO_PLAY_FLAGS);
 856                 outw(DMA_PLAY_SOMETHING1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 857                 outw(DMA_PLAY_SOMETHING1|DMA_PLAY_SOMETHING2, chip->codec_port+IDX_IO_PLAY_FLAGS);
 858                 outw(DMA_RESUME|SOMETHING_ALMOST_ALWAYS_SET|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port+IDX_IO_PLAY_FLAGS);
 859 #endif
 860                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 861
 862                 /* now unmute WaveOut */
 863                 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
 864
 865                 snd_azf3328_dbgio(chip, "trigger2");
 866                 chip->is_playing = 1;
 867                 break;
 868         case SNDRV_PCM_TRIGGER_STOP:
 869                 /* mute WaveOut */
 870                 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
 871
 872                 spin_lock_irqsave(&chip->reg_lock, flags);
 873                 /* stop playback */
 874                 status1 = inw(chip->codec_port+IDX_IO_PLAY_FLAGS);
 875
 876                 status1 &= ~DMA_RESUME;
 877                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 878
 879                 status1 |= DMA_PLAY_SOMETHING1;
 880                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 881
 882                 status1 &= ~DMA_PLAY_SOMETHING1;
 883                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 884                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 885
 886                 /* now unmute WaveOut */
 887                 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
 888                 chip->is_playing = 0;
 889                 break;
 890         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 891                 snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
 892                 break;
 893         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 894                 snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
 895                 break;
 896         default:
 897                 return -EINVAL;
 898         }
 899
 900         snd_azf3328_dbgcallleave();
 901         return result;
 902 }
 903
 904 /* this is just analogous to playback; I'm not quite sure whether recording
 905  * should actually be triggered like that */
 906 static int snd_azf3328_capture_trigger(snd_pcm_substream_t * substream, int cmd)
 907 {
 908         unsigned long flags;
 909         azf3328_t *chip = snd_pcm_substream_chip(substream);
 910         snd_pcm_runtime_t *runtime = substream->runtime;
 911         int result = 0;
 912         unsigned int status1;
 913
 914         snd_azf3328_dbgcalls("snd_azf3328_capture_trigger cmd %d\n", cmd);
 915         switch (cmd) {
 916         case SNDRV_PCM_TRIGGER_START:
 917
 918                 snd_azf3328_dbgio(chip, "trigger1");
 919
 920                 snd_azf3328_setfmt(chip, IDX_IO_REC_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
 921
 922                 spin_lock_irqsave(&chip->reg_lock, flags);
 923                 /* stop recording */
 924                 status1 = inw(chip->codec_port+IDX_IO_REC_FLAGS);
 925                 status1 &= ~DMA_RESUME;
 926                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 927
 928                 /* FIXME: clear interrupts or what??? */
 929                 outw(0xffff, chip->codec_port+IDX_IO_REC_IRQMASK);
 930                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 931
 932                 snd_azf3328_setdmaa(chip, runtime->dma_addr, snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream), 1);
 933
 934                 spin_lock_irqsave(&chip->reg_lock, flags);
 935 #if WIN9X
 936                 /* FIXME: enable playback/recording??? */
 937                 status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2;
 938                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 939
 940                 /* start playback again */
 941                 /* FIXME: what is this value (0x0010)??? */
 942                 status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
 943                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 944 #else
 945                 outw(0x00, chip->codec_port+IDX_IO_REC_FLAGS);
 946                 outw(DMA_PLAY_SOMETHING1, chip->codec_port+IDX_IO_REC_FLAGS);
 947                 outw(DMA_PLAY_SOMETHING1|DMA_PLAY_SOMETHING2, chip->codec_port+IDX_IO_REC_FLAGS);
 948                 outw(DMA_RESUME|SOMETHING_ALMOST_ALWAYS_SET|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port+IDX_IO_REC_FLAGS);
 949 #endif
 950                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 951
 952                 snd_azf3328_dbgio(chip, "trigger2");
 953                 chip->is_playing = 1;
 954                 break;
 955         case SNDRV_PCM_TRIGGER_STOP:
 956                 spin_lock_irqsave(&chip->reg_lock, flags);
 957                 /* stop recording */
 958                 status1 = inw(chip->codec_port+IDX_IO_REC_FLAGS);
 959
 960                 status1 &= ~DMA_RESUME;
 961                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 962
 963                 status1 |= DMA_PLAY_SOMETHING1;
 964                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 965
 966                 status1 &= ~DMA_PLAY_SOMETHING1;
 967                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 968                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 969
 970                 chip->is_playing = 0;
 971                 break;
 972         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 973                 snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
 974                 break;
 975         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 976                 snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
 977                 break;
 978         default:
 979                 return -EINVAL;
 980         }
 981
 982         snd_azf3328_dbgcallleave();
 983         return result;
 984 }
 985
 986 static snd_pcm_uframes_t snd_azf3328_playback_pointer(snd_pcm_substream_t * substream)
 987 {
 988         azf3328_t *chip = snd_pcm_substream_chip(substream);
 989         unsigned long bufptr, playptr;
 990         unsigned long result;
 991         snd_pcm_uframes_t frmres;
 992         unsigned long flags;
 993
 994         spin_lock_irqsave(&chip->reg_lock, flags);
 995 #if QUERY_HARDWARE
 996         bufptr = inl(chip->codec_port+IDX_IO_PLAY_DMA_START_1);
 997 #else
 998         bufptr = substream->runtime->dma_addr;
 999 #endif
1000         playptr = inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS);
1001         spin_unlock_irqrestore(&chip->reg_lock, flags);
1002
1003         result = playptr - bufptr;
1004         frmres = bytes_to_frames( substream->runtime, result );
1005         snd_azf3328_dbgplay("result %lx, playptr %lx (base %x), frames %ld\n", result, playptr, substream->runtime->dma_addr, frmres);
1006         return frmres;
1007 }
1008
1009 static snd_pcm_uframes_t snd_azf3328_capture_pointer(snd_pcm_substream_t * substream)
1010 {
1011         azf3328_t *chip = snd_pcm_substream_chip(substream);
1012         unsigned long bufptr, recptr;
1013         unsigned long result;
1014         snd_pcm_uframes_t frmres;
1015         unsigned long flags;
1016
1017         spin_lock_irqsave(&chip->reg_lock, flags);
1018 #if QUERY_HARDWARE
1019         bufptr = inl(chip->codec_port+IDX_IO_REC_DMA_START_1);
1020 #else
1021         bufptr = substream->runtime->dma_addr;
1022 #endif
1023         recptr = inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS);
1024         spin_unlock_irqrestore(&chip->reg_lock, flags);
1025
1026         result = recptr - bufptr;
1027         frmres = bytes_to_frames( substream->runtime, result );
1028         snd_azf3328_dbgplay("result %lx, rec ptr %lx (base %x), frames %ld\n", result, recptr, substream->runtime->dma_addr, frmres);
1029         return frmres;
1030 }
1031
1032 static irqreturn_t snd_azf3328_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1033 {
1034         azf3328_t *chip = snd_magic_cast(azf3328_t, dev_id, return IRQ_NONE);
1035         unsigned int status, which;
1036         static unsigned long count;
1037
1038         status  = inw(chip->codec_port+IDX_IO_IRQSTATUS);
1039
1040         /* fast path out, to ease interrupt sharing */
1041         if (!(status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_MPU401|IRQ_SOMEIRQ)))
1042                 return IRQ_NONE; /* must be interrupt for another device */
1043
1044         snd_azf3328_dbgplay("Interrupt %ld!\nIDX_IO_PLAY_FLAGS %04x, IDX_IO_PLAY_IRQMASK %04x, IDX_IO_IRQSTATUS %04x\n", count, inw(chip->codec_port+IDX_IO_PLAY_FLAGS), inw(chip->codec_port+IDX_IO_PLAY_IRQMASK), inw(chip->codec_port+IDX_IO_IRQSTATUS));
1045
1046         if (status & IRQ_PLAYBACK)
1047         {
1048                 spin_lock(&chip->reg_lock);
1049                 which = inw(chip->codec_port+IDX_IO_PLAY_IRQMASK);
1050                 if (which & IRQ_FINISHED_PLAYBUF_1)
1051                         /* ack IRQ */
1052                         outw(which | IRQ_FINISHED_PLAYBUF_1, chip->codec_port+IDX_IO_PLAY_IRQMASK);
1053                 if (which & IRQ_FINISHED_PLAYBUF_2)
1054                         /* ack IRQ */
1055                         outw(which | IRQ_FINISHED_PLAYBUF_2, chip->codec_port+IDX_IO_PLAY_IRQMASK);
1056                 if (which & IRQ_PLAY_SOMETHING)
1057                 {
1058                         snd_azf3328_dbgplay("azt3328: unknown play IRQ type occurred, please report!\n");
1059                 }
1060                 if (chip->pcm && chip->playback_substream)
1061                 {
1062                         snd_azf3328_dbgplay("which %x, playptr %lx\n", which, inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS));
1063                         snd_pcm_period_elapsed(chip->playback_substream);
1064                         snd_azf3328_dbgplay("period done, playptr %lx.\n", inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS));
1065                 }
1066                 else
1067                         snd_azf3328_dbgplay("azt3328: ouch, irq handler problem!\n");
1068                 spin_unlock(&chip->reg_lock);
1069         }
1070         if (status & IRQ_RECORDING)
1071         {
1072                 spin_lock(&chip->reg_lock);
1073                 which = inw(chip->codec_port+IDX_IO_REC_IRQMASK);
1074                 if (which & IRQ_FINISHED_RECBUF_1)
1075                         /* ack interrupt */
1076                         outw(which | IRQ_FINISHED_RECBUF_1, chip->codec_port+IDX_IO_REC_IRQMASK);
1077                 if (which & IRQ_FINISHED_RECBUF_2)
1078                         /* ack interrupt */
1079                         outw(which | IRQ_FINISHED_RECBUF_2, chip->codec_port+IDX_IO_REC_IRQMASK);
1080                 if (which & IRQ_REC_SOMETHING)
1081                 {
1082                         snd_azf3328_dbgplay("azt3328: unknown rec IRQ type occurred, please report!\n");
1083                 }
1084                 if (chip->pcm && chip->capture_substream)
1085                 {
1086                         snd_azf3328_dbgplay("which %x, recptr %lx\n", which, inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS));
1087                         spin_unlock(&chip->reg_lock);
1088                         snd_pcm_period_elapsed(chip->capture_substream);
1089                         spin_lock(&chip->reg_lock);
1090                         snd_azf3328_dbgplay("period done, recptr %lx.\n", inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS));
1091                 }
1092                 spin_unlock(&chip->reg_lock);
1093         }
1094         if (status & IRQ_MPU401)
1095                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1096         if (status & IRQ_SOMEIRQ)
1097                 snd_azf3328_dbgplay("azt3328: unknown IRQ type occurred, please report!\n");
1098         count++;
1099         return IRQ_HANDLED;
1100 }
1101
1102 /*****************************************************************/
1103
1104 static snd_pcm_hardware_t snd_azf3328_playback =
1105 {
1106         /* FIXME!! Correct? */
1107         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1108                                  SNDRV_PCM_INFO_MMAP_VALID),
1109         .formats =              SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1110                                 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE,
1111         .rates =                SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_KNOT,
1112         .rate_min =             5512,
1113         .rate_max =             64000,
1114         .channels_min =         1,
1115         .channels_max =         2,
1116         .buffer_bytes_max =     65536,
1117         .period_bytes_min =     64,
1118         .period_bytes_max =     65536,
1119         .periods_min =          1,
1120         .periods_max =          1024,
1121         /* FIXME: maybe that card actually has a FIFO?
1122          * Hmm, it seems newer revisions do have one, but we still don't know
1123          * its size... */
1124         .fifo_size =            0,
1125 };
1126
1127 static snd_pcm_hardware_t snd_azf3328_capture =
1128 {
1129         /* FIXME */
1130         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1131                                  SNDRV_PCM_INFO_MMAP_VALID),
1132         .formats =              SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1133                                 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE,
1134         .rates =                SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_KNOT,
1135         .rate_min =             5512,
1136         .rate_max =             64000,
1137         .channels_min =         1,
1138         .channels_max =         2,
1139         .buffer_bytes_max =     65536,
1140         .period_bytes_min =     64,
1141         .period_bytes_max =     65536,
1142         .periods_min =          1,
1143         .periods_max =          1024,
1144         .fifo_size =            0,
1145 };
1146
1147
1148 static unsigned int snd_azf3328_fixed_rates[] = {
1149         5512, 6620, 8000, 9600, 11025, 16000, 22050, 32000, 44100, 48000, 64000
1150 };
1151 static snd_pcm_hw_constraint_list_t snd_azf3328_hw_constraints_rates = {
1152         .count = ARRAY_SIZE(snd_azf3328_fixed_rates),
1153         .list = snd_azf3328_fixed_rates,
1154         .mask = 0,
1155 };
1156
1157 /*****************************************************************/
1158
1159 static int snd_azf3328_playback_open(snd_pcm_substream_t * substream)
1160 {
1161         azf3328_t *chip = snd_pcm_substream_chip(substream);
1162         snd_pcm_runtime_t *runtime = substream->runtime;
1163
1164         snd_azf3328_dbgcallenter();
1165         chip->playback_substream = substream;
1166         runtime->hw = snd_azf3328_playback;
1167         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1168                                    &snd_azf3328_hw_constraints_rates);
1169         snd_azf3328_dbgcallleave();
1170         return 0;
1171 }
1172
1173 static int snd_azf3328_capture_open(snd_pcm_substream_t * substream)
1174 {
1175         azf3328_t *chip = snd_pcm_substream_chip(substream);
1176         snd_pcm_runtime_t *runtime = substream->runtime;
1177
1178         snd_azf3328_dbgcallenter();
1179         chip->capture_substream = substream;
1180         runtime->hw = snd_azf3328_capture;
1181         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1182                                    &snd_azf3328_hw_constraints_rates);
1183         snd_azf3328_dbgcallleave();
1184         return 0;
1185 }
1186
1187 static int snd_azf3328_playback_close(snd_pcm_substream_t * substream)
1188 {
1189         azf3328_t *chip = snd_pcm_substream_chip(substream);
1190
1191         snd_azf3328_dbgcallenter();
1192
1193         chip->playback_substream = NULL;
1194         snd_azf3328_dbgcallleave();
1195         return 0;
1196 }
1197
1198 static int snd_azf3328_capture_close(snd_pcm_substream_t * substream)
1199 {
1200         azf3328_t *chip = snd_pcm_substream_chip(substream);
1201
1202         snd_azf3328_dbgcallenter();
1203         chip->capture_substream = NULL;
1204         snd_azf3328_dbgcallleave();
1205         return 0;
1206 }
1207
1208 /******************************************************************/
1209
1210 static snd_pcm_ops_t snd_azf3328_playback_ops = {
1211         .open =         snd_azf3328_playback_open,
1212         .close =        snd_azf3328_playback_close,
1213         .ioctl =        snd_pcm_lib_ioctl,
1214         .hw_params =    snd_azf3328_hw_params,
1215         .hw_free =      snd_azf3328_hw_free,
1216         .prepare =      snd_azf3328_playback_prepare,
1217         .trigger =      snd_azf3328_playback_trigger,
1218         .pointer =      snd_azf3328_playback_pointer
1219 };
1220
1221 static snd_pcm_ops_t snd_azf3328_capture_ops = {
1222         .open =         snd_azf3328_capture_open,
1223         .close =        snd_azf3328_capture_close,
1224         .ioctl =        snd_pcm_lib_ioctl,
1225         .hw_params =    snd_azf3328_hw_params,
1226         .hw_free =      snd_azf3328_hw_free,
1227         .prepare =      snd_azf3328_capture_prepare,
1228         .trigger =      snd_azf3328_capture_trigger,
1229         .pointer =      snd_azf3328_capture_pointer
1230 };
1231
1232 static void snd_azf3328_pcm_free(snd_pcm_t *pcm)
1233 {
1234         azf3328_t *chip = snd_magic_cast(azf3328_t, pcm->private_data, return);
1235         chip->pcm = NULL;
1236         snd_pcm_lib_preallocate_free_for_all(pcm);
1237 }
1238
1239 static int __devinit snd_azf3328_pcm(azf3328_t *chip, int device)
1240 {
1241         snd_pcm_t *pcm;
1242         int err;
1243
1244         snd_azf3328_dbgcallenter();
1245         if ((err = snd_pcm_new(chip->card, "AZF3328 DSP", device, 1, 1, &pcm)) < 0)
1246                 return err;
1247         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_azf3328_playback_ops);
1248         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_azf3328_capture_ops);
1249
1250         pcm->private_data = chip;
1251         pcm->private_free = snd_azf3328_pcm_free;
1252         pcm->info_flags = 0;
1253         strcpy(pcm->name, chip->card->shortname);
1254         chip->pcm = pcm;
1255
1256         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1257                                               snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1258
1259         snd_azf3328_dbgcallleave();
1260         return 0;
1261 }
1262
1263 /******************************************************************/
1264
1265 static int snd_azf3328_free(azf3328_t *chip)
1266 {
1267         if (chip->irq < 0)
1268                 goto __end_hw;
1269
1270         /* interrupt setup - mask everything */
1271         /* FIXME */
1272
1273         synchronize_irq(chip->irq);
1274       __end_hw:
1275 #ifdef SUPPORT_JOYSTICK
1276         if (chip->res_joystick) {
1277                 gameport_unregister_port(&chip->gameport);
1278                 /* disable gameport */
1279                 snd_azf3328_io2_write(chip, IDX_IO2_LEGACY_ADDR,
1280                                       snd_azf3328_io2_read(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);
1281                 release_resource(chip->res_joystick);
1282                 kfree_nocheck(chip->res_joystick);
1283         }
1284 #endif
1285         if (chip->res_codec_port) {
1286                 release_resource(chip->res_codec_port);
1287                 kfree_nocheck(chip->res_codec_port);
1288         }
1289         if (chip->res_io2_port) {
1290                 release_resource(chip->res_io2_port);
1291                 kfree_nocheck(chip->res_io2_port);
1292         }
1293         if (chip->res_mpu_port) {
1294                 release_resource(chip->res_mpu_port);
1295                 kfree_nocheck(chip->res_mpu_port);
1296         }
1297         if (chip->res_synth_port) {
1298                 release_resource(chip->res_synth_port);
1299                 kfree_nocheck(chip->res_synth_port);
1300         }
1301         if (chip->res_mixer_port) {
1302                 release_resource(chip->res_mixer_port);
1303                 kfree_nocheck(chip->res_mixer_port);
1304         }
1305         if (chip->irq >= 0)
1306                 free_irq(chip->irq, (void *)chip);
1307
1308         snd_magic_kfree(chip);
1309         return 0;
1310 }
1311
1312 static int snd_azf3328_dev_free(snd_device_t *device)
1313 {
1314         azf3328_t *chip = snd_magic_cast(azf3328_t, device->device_data, return -ENXIO);
1315         return snd_azf3328_free(chip);
1316 }
1317
1318 #if 0
1319 /* check whether a bit can be modified */
1320 static void snd_azf3328_test_bit(unsigned int reg, int bit)
1321 {
1322         unsigned char val, valoff, valon;
1323
1324         val = inb(reg);
1325
1326         outb(val & ~(1 << bit), reg);
1327         valoff = inb(reg);
1328
1329         outb(val|(1 << bit), reg);
1330         valon = inb(reg);
1331
1332         outb(val, reg);
1333
1334         printk(KERN_ERR "reg %04x bit %d: %02x %02x %02x\n", reg, bit, val, valoff, valon);
1335 }
1336 #endif
1337
1338 static int __devinit snd_azf3328_create(snd_card_t * card,
1339                                          struct pci_dev *pci,
1340                                          unsigned long device_type,
1341                                          azf3328_t ** rchip)
1342 {
1343         unsigned long flags;
1344         azf3328_t *chip;
1345         int err;
1346         static snd_device_ops_t ops = {
1347                 .dev_free =     snd_azf3328_dev_free,
1348         };
1349         u16 tmp;
1350
1351         *rchip = NULL;
1352
1353         if ((err = pci_enable_device(pci)) < 0)
1354                 return err;
1355
1356         chip = snd_magic_kcalloc(azf3328_t, 0, GFP_KERNEL);
1357         if (chip == NULL)
1358                 return -ENOMEM;
1359         spin_lock_init(&chip->reg_lock);
1360         chip->card = card;
1361         chip->pci = pci;
1362         chip->irq = -1;
1363
1364         /* check if we can restrict PCI DMA transfers to 24 bits */
1365         if (pci_set_dma_mask(pci, 0x00ffffff) < 0 ||
1366             pci_set_consistent_dma_mask(pci, 0x00ffffff) < 0) {
1367                 snd_printk("architecture does not support 24bit PCI busmaster DMA\n");
1368                 return -ENXIO;
1369         }
1370
1371         chip->codec_port = pci_resource_start(pci, 0);
1372         if ((chip->res_codec_port = request_region(chip->codec_port, 0x80, "Aztech AZF3328 I/O")) == NULL) {
1373                 snd_printk("unable to grab I/O port at 0x%lx-0x%lx\n", chip->codec_port, chip->codec_port + 0x80 - 1);
1374                 snd_azf3328_free(chip);
1375                 return -EBUSY;
1376         }
1377         chip->io2_port = pci_resource_start(pci, 1);
1378         if ((chip->res_io2_port = request_region(chip->io2_port, 0x08, "Aztech AZF3328 I/O 2")) == NULL) {
1379                 snd_printk("unable to grab I/O 2 port at 0x%lx-0x%lx\n", chip->io2_port, chip->io2_port + 0x08 - 1);
1380                 snd_azf3328_free(chip);
1381                 return -EBUSY;
1382         }
1383         chip->mpu_port = pci_resource_start(pci, 2);
1384         if ((chip->res_mpu_port = request_region(chip->mpu_port, 0x04, "Aztech AZF3328 MPU401")) == NULL) {
1385                 snd_printk("unable to grab MPU401 port at 0x%lx-0x%lx\n", chip->mpu_port, chip->mpu_port + 0x04 - 1);
1386                 snd_azf3328_free(chip);
1387                 return -EBUSY;
1388         }
1389         chip->synth_port = pci_resource_start(pci, 3);
1390         if ((chip->res_synth_port = request_region(chip->synth_port, 0x08, "Aztech AZF3328 OPL3")) == NULL) {
1391                 snd_printk("unable to grab OPL3 port at 0x%lx-0x%lx\n", chip->synth_port, chip->synth_port + 0x08 - 1);
1392                 snd_azf3328_free(chip);
1393                 return -EBUSY;
1394         }
1395         chip->mixer_port = pci_resource_start(pci, 4);
1396         if ((chip->res_mixer_port = request_region(chip->mixer_port, 0x40, "Aztech AZF3328 Mixer")) == NULL) {
1397                 snd_printk("unable to grab mixer port at 0x%lx-0x%lx\n", chip->mixer_port, chip->mixer_port + 0x40 - 1);
1398                 snd_azf3328_free(chip);
1399                 return -EBUSY;
1400         }
1401
1402         if (request_irq(pci->irq, snd_azf3328_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip)) {
1403                 snd_printk("unable to grab IRQ %d\n", pci->irq);
1404                 snd_azf3328_free(chip);
1405                 return -EBUSY;
1406         }
1407         chip->irq = pci->irq;
1408         pci_set_master(pci);
1409         synchronize_irq(chip->irq);
1410
1411         snd_azf3328_dbgmisc("codec_port 0x%lx, io2_port 0x%lx, mpu_port 0x%lx, synth_port 0x%lx, mixer_port 0x%lx, irq %d\n", chip->codec_port, chip->io2_port, chip->mpu_port, chip->synth_port, chip->mixer_port, chip->irq);
1412
1413         snd_azf3328_dbgmisc("io2 %02x %02x %02x %02x %02x %02x\n", snd_azf3328_io2_read(chip, 0), snd_azf3328_io2_read(chip, 1), snd_azf3328_io2_read(chip, 2), snd_azf3328_io2_read(chip, 3), snd_azf3328_io2_read(chip, 4), snd_azf3328_io2_read(chip, 5));
1414
1415         for (tmp=0; tmp <= 0x01; tmp += 1)
1416                 snd_azf3328_dbgmisc("0x%02x: opl 0x%04x, mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, mpu330 0x%04x\n", tmp, inb(0x388 + tmp), inb(0x300 + tmp), inb(0x310 + tmp), inb(0x320 + tmp), inb(0x330 + tmp));
1417
1418         /* create mixer interface & switches */
1419         if ((err = snd_azf3328_mixer_new(chip)) < 0)
1420                 return err;
1421
1422         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1423                 snd_azf3328_free(chip);
1424                 return err;
1425         }
1426
1427 #if 0
1428         /* set very low bitrate to reduce noise and power consumption? */
1429         snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, 5512, 8, 1);
1430 #endif
1431
1432         /* standard chip init stuff */
1433         spin_lock_irqsave(&chip->reg_lock, flags);
1434         outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_PLAY_FLAGS);
1435         outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_SOMETHING_FLAGS);
1436         outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_REC_FLAGS);
1437         outb(0x0, chip->codec_port + IDX_IO_IRQ63H);
1438
1439         spin_unlock_irqrestore(&chip->reg_lock, flags);
1440
1441         snd_card_set_dev(card, &pci->dev);
1442
1443         *rchip = chip;
1444         return 0;
1445 }
1446
1447 #ifdef SUPPORT_JOYSTICK
1448 static void __devinit snd_azf3328_config_joystick(azf3328_t *chip, int joystick)
1449 {
1450         unsigned char val;
1451
1452         if (joystick == 1) {
1453                 if ((chip->res_joystick = request_region(0x200, 8, "AZF3328 gameport")) != NULL)
1454                         chip->gameport.io = 0x200;
1455         }
1456
1457         val = inb(chip->io2_port + IDX_IO2_LEGACY_ADDR);
1458         if (chip->res_joystick)
1459                 val |= LEGACY_JOY;
1460         else
1461                 val &= ~LEGACY_JOY;
1462
1463         outb(val, chip->io2_port + IDX_IO2_LEGACY_ADDR);
1464         if (chip->res_joystick)
1465                 gameport_register_port(&chip->gameport);
1466 }
1467 #endif
1468
1469 static int __devinit snd_azf3328_probe(struct pci_dev *pci,
1470                                           const struct pci_device_id *pci_id)
1471 {
1472         static int dev;
1473         snd_card_t *card;
1474         azf3328_t *chip;
1475         opl3_t *opl3;
1476         int err;
1477
1478         snd_azf3328_dbgcallenter();
1479         if (dev >= SNDRV_CARDS)
1480                 return -ENODEV;
1481         if (!enable[dev]) {
1482                 dev++;
1483                 return -ENOENT;
1484         }
1485
1486         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0 );
1487         if (card == NULL)
1488                 return -ENOMEM;
1489
1490         strcpy(card->driver, "AZF3328");
1491         strcpy(card->shortname, "Aztech AZF3328 (PCI168)");
1492
1493         if ((err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip)) < 0) {
1494                 snd_card_free(card);
1495                 return err;
1496         }
1497
1498         if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_MPU401,
1499                                         chip->mpu_port, 1, pci->irq, 0,
1500                                         &chip->rmidi)) < 0) {
1501                 snd_printk("azf3328: no MPU-401 device at 0x%lx?\n", chip->mpu_port);
1502                 snd_card_free(card);
1503                 return err;
1504         }
1505
1506         if ((err = snd_azf3328_pcm(chip, 0)) < 0) {
1507                 snd_card_free(card);
1508                 return err;
1509         }
1510
1511         if (snd_opl3_create(card, chip->synth_port, chip->synth_port+2,
1512                             OPL3_HW_AUTO, 1, &opl3) < 0) {
1513                 snd_printk("azf3328: no OPL3 device at 0x%lx-0x%lx?\n",
1514                            chip->synth_port, chip->synth_port+2 );
1515         } else {
1516                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1517                         snd_card_free(card);
1518                         return err;
1519                 }
1520         }
1521
1522         snd_azf3328_dbgio(chip, "create");
1523
1524         sprintf(card->longname, "%s at 0x%lx, irq %i",
1525                 card->shortname, chip->codec_port, chip->irq);
1526
1527         if ((err = snd_card_register(card)) < 0) {
1528                 snd_card_free(card);
1529                 return err;
1530         }
1531
1532 #ifdef MODULE
1533         printk(
1534 "azt3328: Experimental driver for Aztech AZF3328-based soundcards such as PCI168.\n"
1535 "azt3328: ZERO support from Aztech: you might think hard about future purchase.\n"
1536 "azt3328: Feel free to contact hw7oshyuv3001@sneakemail.com for bug reports etc.!\n");
1537 #endif
1538
1539 #ifdef SUPPORT_JOYSTICK
1540         snd_azf3328_config_joystick(chip, joystick[dev]);
1541 #endif
1542
1543         pci_set_drvdata(pci, chip);
1544         dev++;
1545
1546         snd_azf3328_dbgcallleave();
1547         return 0;
1548 }
1549
1550 static void __devexit snd_azf3328_remove(struct pci_dev *pci)
1551 {
1552         azf3328_t *chip = snd_magic_cast(azf3328_t, pci_get_drvdata(pci), return);
1553
1554         snd_azf3328_dbgcallenter();
1555
1556         /* reset (close) mixer */
1557         snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1); /* first mute master volume */
1558         snd_azf3328_mixer_write(chip, IDX_MIXER_RESET, 0x0, WORD_VALUE);
1559
1560         if (chip)
1561                 snd_card_free(chip->card);
1562         pci_set_drvdata(pci, NULL);
1563         snd_azf3328_dbgcallleave();
1564 }
1565
1566 static struct pci_driver driver = {
1567         .name = "AZF3328",
1568         .id_table = snd_azf3328_ids,
1569         .probe = snd_azf3328_probe,
1570         .remove = __devexit_p(snd_azf3328_remove),
1571 };
1572
1573 static int __init alsa_card_azf3328_init(void)
1574 {
1575         int err;
1576
1577         snd_azf3328_dbgcallenter();
1578
1579         if ((err = pci_module_init(&driver)) < 0)
1580         {
1581 #ifdef MODULE
1582                 printk(KERN_ERR "azt3328: no AZF3328 based soundcards found or device busy\n");
1583 #endif
1584                 return err;
1585         }
1586         snd_azf3328_dbgcallleave();
1587         return 0;
1588 }
1589
1590 static void __exit alsa_card_azf3328_exit(void)
1591 {
1592         snd_azf3328_dbgcallenter();
1593         pci_unregister_driver(&driver);
1594         snd_azf3328_dbgcallleave();
1595 }
1596
1597 module_init(alsa_card_azf3328_init)
1598 module_exit(alsa_card_azf3328_exit)
1599
1600 #ifndef MODULE
1601
1602 /* format is: snd-azf3328=enable,index,id,joystick */
1603
1604 static int __init alsa_card_azf3328_setup(char *str)
1605 {
1606         static unsigned __initdata nr_dev = 0;
1607
1608         snd_azf3328_dbgcallenter();
1609
1610         if (nr_dev >= SNDRV_CARDS)
1611                 return 0;
1612         (void)(get_option(&str,&enable[nr_dev]) == 2 &&
1613                get_option(&str,&index[nr_dev]) == 2 &&
1614                get_id(&str,&id[nr_dev]) == 2
1615 #ifdef SUPPORT_JOYSTICK
1616                && get_option(&str,&joystick[nr_dev]) == 2
1617 #endif
1618                );
1619         nr_dev++;
1620         snd_azf3328_dbgcallleave();
1621         return 1;
1622 }
1623
1624 __setup("snd-azt3328=", alsa_card_azf3328_setup);
1625
1626 #endif /* ifndef MODULE */