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   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 <linux/moduleparam.h>
 102 #include <sound/core.h>
 103 #include <sound/control.h>
 104 #include <sound/pcm.h>
 105 #include <sound/rawmidi.h>
 106 #include <sound/mpu401.h>
 107 #include <sound/opl3.h>
 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_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");
 115
 116 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
 117 #define SUPPORT_JOYSTICK 1
 118 #endif
 119
 120 #define DEBUG_MISC      0
 121 #define DEBUG_CALLS     0
 122 #define DEBUG_MIXER     0
 123 #define DEBUG_PLAY_REC  0
 124 #define DEBUG_IO        0
 125 #define MIXER_TESTING   0
 126
 127 #if DEBUG_MISC
 128 #define snd_azf3328_dbgmisc(format, args...) printk(KERN_ERR format, ##args)
 129 #else
 130 #define snd_azf3328_dbgmisc(format, args...)
 131 #endif
 132
 133 #if DEBUG_CALLS
 134 #define snd_azf3328_dbgcalls(format, args...) printk(format, ##args)
 135 #define snd_azf3328_dbgcallenter() printk(KERN_ERR "entering %s\n", __FUNCTION__)
 136 #define snd_azf3328_dbgcallleave() printk(KERN_ERR "leaving %s\n", __FUNCTION__)
 137 #else
 138 #define snd_azf3328_dbgcalls(format, args...)
 139 #define snd_azf3328_dbgcallenter()
 140 #define snd_azf3328_dbgcallleave()
 141 #endif
 142
 143 #if DEBUG_MIXER
 144 #define snd_azf3328_dbgmixer(format, args...) printk(format, ##args)
 145 #else
 146 #define snd_azf3328_dbgmixer(format, args...)
 147 #endif
 148
 149 #if DEBUG_PLAY_REC
 150 #define snd_azf3328_dbgplay(format, args...) printk(KERN_ERR format, ##args)
 151 #else
 152 #define snd_azf3328_dbgplay(format, args...)
 153 #endif
 154
 155 #if DEBUG_IO
 156 #define snd_azf3328_dbgio(chip, where) \
 157             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))
 158 #else
 159 #define snd_azf3328_dbgio(chip, where)
 160 #endif
 161
 162 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 163 module_param_array(index, int, NULL, 0444);
 164 MODULE_PARM_DESC(index, "Index value for AZF3328 soundcard.");
 165
 166 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 167 module_param_array(id, charp, NULL, 0444);
 168 MODULE_PARM_DESC(id, "ID string for AZF3328 soundcard.");
 169
 170 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
 171 module_param_array(enable, bool, NULL, 0444);
 172 MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard.");
 173
 174 #ifdef SUPPORT_JOYSTICK
 175 static int joystick[SNDRV_CARDS];
 176 module_param_array(joystick, bool, NULL, 0444);
 177 MODULE_PARM_DESC(joystick, "Enable joystick for AZF3328 soundcard.");
 178 #endif
 179
 180 typedef struct _snd_azf3328 azf3328_t;
 181
 182 struct _snd_azf3328 {
 183         int irq;
 184
 185         unsigned long codec_port;
 186         unsigned long io2_port;
 187         unsigned long mpu_port;
 188         unsigned long synth_port;
 189         unsigned long mixer_port;
 190
 191 #ifdef SUPPORT_JOYSTICK
 192         struct gameport *gameport;
 193 #endif
 194
 195         struct pci_dev *pci;
 196         snd_card_t *card;
 197
 198         snd_pcm_t *pcm;
 199         snd_rawmidi_t *rmidi;
 200         snd_pcm_substream_t *playback_substream;
 201         snd_pcm_substream_t *capture_substream;
 202         unsigned int is_playing;
 203         unsigned int is_recording;
 204
 205         spinlock_t reg_lock;
 206 };
 207
 208 static struct pci_device_id snd_azf3328_ids[] = {
 209         { 0x122D, 0x50DC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },   /* PCI168/3328 */
 210         { 0x122D, 0x80DA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },   /* 3328 */
 211         { 0, }
 212 };
 213
 214 MODULE_DEVICE_TABLE(pci, snd_azf3328_ids);
 215
 216 static inline void snd_azf3328_io2_write(azf3328_t *chip, int reg, unsigned char value)
 217 {
 218         outb(value, chip->io2_port + reg);
 219 }
 220
 221 static inline unsigned char snd_azf3328_io2_read(azf3328_t *chip, int reg)
 222 {
 223         return inb(chip->io2_port + reg);
 224 }
 225
 226 static void snd_azf3328_mixer_write(azf3328_t *chip, int reg, unsigned long value, int type)
 227 {
 228         switch(type) {
 229         case WORD_VALUE:
 230                 outw(value, chip->mixer_port + reg);
 231                 break;
 232         case DWORD_VALUE:
 233                 outl(value, chip->mixer_port + reg);
 234                 break;
 235         case BYTE_VALUE:
 236                 outb(value, chip->mixer_port + reg);
 237                 break;
 238         }
 239 }
 240
 241 static void snd_azf3328_mixer_set_mute(azf3328_t *chip, int reg, int do_mute)
 242 {
 243         unsigned char oldval;
 244
 245         /* the mute bit is on the *second* (i.e. right) register of a
 246          * left/right channel setting */
 247         oldval = inb(chip->mixer_port + reg + 1);
 248         if (do_mute)
 249                 oldval |= 0x80;
 250         else
 251                 oldval &= ~0x80;
 252         outb(oldval, chip->mixer_port + reg + 1);
 253 }
 254
 255 static 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)
 256 {
 257         unsigned char curr_vol_left = 0, curr_vol_right = 0;
 258         int left_done = 0, right_done = 0;
 259
 260         snd_azf3328_dbgcallenter();
 261         if (chan_sel & SET_CHAN_LEFT)
 262                 curr_vol_left  = inb(chip->mixer_port + reg + 1);
 263         else
 264                 left_done = 1;
 265         if (chan_sel & SET_CHAN_RIGHT)
 266                 curr_vol_right = inb(chip->mixer_port + reg + 0);
 267         else
 268                 right_done = 1;
 269
 270         /* take care of muting flag (0x80) contained in left channel */
 271         if (curr_vol_left & 0x80)
 272                 dst_vol_left |= 0x80;
 273         else
 274                 dst_vol_left &= ~0x80;
 275
 276         do
 277         {
 278                 if (!left_done)
 279                 {
 280                         if (curr_vol_left > dst_vol_left)
 281                                 curr_vol_left--;
 282                         else
 283                         if (curr_vol_left < dst_vol_left)
 284                                 curr_vol_left++;
 285                         else
 286                             left_done = 1;
 287                         outb(curr_vol_left, chip->mixer_port + reg + 1);
 288                 }
 289                 if (!right_done)
 290                 {
 291                         if (curr_vol_right > dst_vol_right)
 292                                 curr_vol_right--;
 293                         else
 294                         if (curr_vol_right < dst_vol_right)
 295                                 curr_vol_right++;
 296                         else
 297                             right_done = 1;
 298                         /* during volume change, the right channel is crackling
 299                          * somewhat more than the left channel, unfortunately.
 300                          * This seems to be a hardware issue. */
 301                         outb(curr_vol_right, chip->mixer_port + reg + 0);
 302                 }
 303                 if (delay)
 304                         mdelay(delay);
 305         }
 306         while ((!left_done) || (!right_done));
 307         snd_azf3328_dbgcallleave();
 308 }
 309
 310 /*
 311  * general mixer element
 312  */
 313 typedef struct azf3328_mixer_reg {
 314         unsigned int reg;
 315         unsigned int lchan_shift, rchan_shift;
 316         unsigned int mask;
 317         unsigned int invert: 1;
 318         unsigned int stereo: 1;
 319         unsigned int enum_c: 4;
 320 } azf3328_mixer_reg_t;
 321
 322 #define COMPOSE_MIXER_REG(reg,lchan_shift,rchan_shift,mask,invert,stereo,enum_c) \
 323  ((reg) | (lchan_shift << 8) | (rchan_shift << 12) | (mask << 16) | (invert << 24) | (stereo << 25) | (enum_c << 26))
 324
 325 static void snd_azf3328_mixer_reg_decode(azf3328_mixer_reg_t *r, unsigned long val)
 326 {
 327         r->reg = val & 0xff;
 328         r->lchan_shift = (val >> 8) & 0x0f;
 329         r->rchan_shift = (val >> 12) & 0x0f;
 330         r->mask = (val >> 16) & 0xff;
 331         r->invert = (val >> 24) & 1;
 332         r->stereo = (val >> 25) & 1;
 333         r->enum_c = (val >> 26) & 0x0f;
 334 }
 335
 336 /*
 337  * mixer switches/volumes
 338  */
 339
 340 #define AZF3328_MIXER_SWITCH(xname, reg, shift, invert) \
 341 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 342   .info = snd_azf3328_info_mixer, \
 343   .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
 344   .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0x1, invert, 0, 0), \
 345 }
 346
 347 #define AZF3328_MIXER_VOL_STEREO(xname, reg, mask, invert) \
 348 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 349   .info = snd_azf3328_info_mixer, \
 350   .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
 351   .private_value = COMPOSE_MIXER_REG(reg, 8, 0, mask, invert, 1, 0), \
 352 }
 353
 354 #define AZF3328_MIXER_VOL_MONO(xname, reg, mask, is_right_chan) \
 355 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 356   .info = snd_azf3328_info_mixer, \
 357   .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
 358   .private_value = COMPOSE_MIXER_REG(reg, is_right_chan ? 0 : 8, 0, mask, 1, 0, 0), \
 359 }
 360
 361 #define AZF3328_MIXER_VOL_SPECIAL(xname, reg, mask, shift, invert) \
 362 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 363   .info = snd_azf3328_info_mixer, \
 364   .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
 365   .private_value = COMPOSE_MIXER_REG(reg, shift, 0, mask, invert, 0, 0), \
 366 }
 367
 368 #define AZF3328_MIXER_ENUM(xname, reg, enum_c, shift) \
 369 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 370   .info = snd_azf3328_info_mixer_enum, \
 371   .get = snd_azf3328_get_mixer_enum, .put = snd_azf3328_put_mixer_enum, \
 372   .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0, 0, 0, enum_c), \
 373 }
 374
 375 static int snd_azf3328_info_mixer(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 376 {
 377         azf3328_mixer_reg_t reg;
 378
 379         snd_azf3328_dbgcallenter();
 380         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 381         uinfo->type = reg.mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 382         uinfo->count = reg.stereo + 1;
 383         uinfo->value.integer.min = 0;
 384         uinfo->value.integer.max = reg.mask;
 385         snd_azf3328_dbgcallleave();
 386         return 0;
 387 }
 388
 389 static int snd_azf3328_get_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 390 {
 391         azf3328_t *chip = snd_kcontrol_chip(kcontrol);
 392         azf3328_mixer_reg_t reg;
 393         unsigned int oreg, val;
 394
 395         snd_azf3328_dbgcallenter();
 396         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 397
 398         oreg = inw(chip->mixer_port + reg.reg);
 399         val = (oreg >> reg.lchan_shift) & reg.mask;
 400         if (reg.invert)
 401                 val = reg.mask - val;
 402         ucontrol->value.integer.value[0] = val;
 403         if (reg.stereo) {
 404                 val = (oreg >> reg.rchan_shift) & reg.mask;
 405                 if (reg.invert)
 406                         val = reg.mask - val;
 407                 ucontrol->value.integer.value[1] = val;
 408         }
 409         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);
 410         snd_azf3328_dbgcallleave();
 411         return 0;
 412 }
 413
 414 static int snd_azf3328_put_mixer(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 415 {
 416         azf3328_t *chip = snd_kcontrol_chip(kcontrol);
 417         azf3328_mixer_reg_t reg;
 418         unsigned int oreg, nreg, val;
 419
 420         snd_azf3328_dbgcallenter();
 421         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 422         oreg = inw(chip->mixer_port + reg.reg);
 423         val = ucontrol->value.integer.value[0] & reg.mask;
 424         if (reg.invert)
 425                 val = reg.mask - val;
 426         nreg = oreg & ~(reg.mask << reg.lchan_shift);
 427         nreg |= (val << reg.lchan_shift);
 428         if (reg.stereo) {
 429                 val = ucontrol->value.integer.value[1] & reg.mask;
 430                 if (reg.invert)
 431                         val = reg.mask - val;
 432                 nreg &= ~(reg.mask << reg.rchan_shift);
 433                 nreg |= (val << reg.rchan_shift);
 434         }
 435         if (reg.mask >= 0x07) /* it's a volume control, so better take care */
 436                 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 */
 437         else
 438                 outw(nreg, chip->mixer_port + reg.reg);
 439
 440         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));
 441         snd_azf3328_dbgcallleave();
 442         return (nreg != oreg);
 443 }
 444
 445 static int snd_azf3328_info_mixer_enum(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 446 {
 447         azf3328_mixer_reg_t reg;
 448         static char *texts1[2] = { "ModemOut1", "ModemOut2" };
 449         static char *texts2[2] = { "MonoSelectSource1", "MonoSelectSource2" };
 450         static char *texts3[8] = {
 451                 "Mic", "CD", "Video", "Aux", "Line",
 452                 "Mix", "Mix Mono", "Phone"
 453         };
 454
 455         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 456         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 457         uinfo->count = (reg.reg == IDX_MIXER_REC_SELECT) ? 2 : 1;
 458         uinfo->value.enumerated.items = reg.enum_c;
 459         if (uinfo->value.enumerated.item > reg.enum_c - 1U)
 460                 uinfo->value.enumerated.item = reg.enum_c - 1U;
 461         if (reg.reg == IDX_MIXER_ADVCTL2)
 462         {
 463                 if (reg.lchan_shift == 8) /* modem out sel */
 464                         strcpy(uinfo->value.enumerated.name, texts1[uinfo->value.enumerated.item]);
 465                 else /* mono sel source */
 466                         strcpy(uinfo->value.enumerated.name, texts2[uinfo->value.enumerated.item]);
 467         }
 468         else
 469                 strcpy(uinfo->value.enumerated.name, texts3[uinfo->value.enumerated.item]
 470 );
 471         return 0;
 472 }
 473
 474 static int snd_azf3328_get_mixer_enum(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 475 {
 476         azf3328_mixer_reg_t reg;
 477         azf3328_t *chip = snd_kcontrol_chip(kcontrol);
 478         unsigned short val;
 479
 480         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 481         val = inw(chip->mixer_port + reg.reg);
 482         if (reg.reg == IDX_MIXER_REC_SELECT)
 483         {
 484                 ucontrol->value.enumerated.item[0] = (val >> 8) & (reg.enum_c - 1);
 485                 ucontrol->value.enumerated.item[1] = (val >> 0) & (reg.enum_c - 1);
 486         }
 487         else
 488                 ucontrol->value.enumerated.item[0] = (val >> reg.lchan_shift) & (reg.enum_c - 1);
 489         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);
 490         return 0;
 491 }
 492
 493 static int snd_azf3328_put_mixer_enum(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 494 {
 495         azf3328_mixer_reg_t reg;
 496         azf3328_t *chip = snd_kcontrol_chip(kcontrol);
 497         unsigned int oreg, nreg, val;
 498
 499         snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
 500         oreg = inw(chip->mixer_port + reg.reg);
 501         val = oreg;
 502         if (reg.reg == IDX_MIXER_REC_SELECT)
 503         {
 504                 if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U ||
 505                 ucontrol->value.enumerated.item[1] > reg.enum_c - 1U)
 506                         return -EINVAL;
 507                 val = (ucontrol->value.enumerated.item[0] << 8) |
 508                       (ucontrol->value.enumerated.item[1] << 0);
 509         }
 510         else
 511         {
 512                 if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U)
 513                         return -EINVAL;
 514                 val &= ~((reg.enum_c - 1) << reg.lchan_shift);
 515                 val |= (ucontrol->value.enumerated.item[0] << reg.lchan_shift);
 516         }
 517         outw(val, chip->mixer_port + reg.reg);
 518         nreg = val;
 519
 520         snd_azf3328_dbgmixer("put_enum: %02x to %04x, oreg %04x\n", reg.reg, val, oreg);
 521         return (nreg != oreg);
 522 }
 523
 524 static snd_kcontrol_new_t snd_azf3328_mixer_controls[] __devinitdata = {
 525         AZF3328_MIXER_SWITCH("Master Playback Switch", IDX_MIXER_PLAY_MASTER, 15, 1),
 526         AZF3328_MIXER_VOL_STEREO("Master Playback Volume", IDX_MIXER_PLAY_MASTER, 0x1f, 1),
 527         AZF3328_MIXER_SWITCH("Wave Playback Switch", IDX_MIXER_WAVEOUT, 15, 1),
 528         AZF3328_MIXER_VOL_STEREO("Wave Playback Volume", IDX_MIXER_WAVEOUT, 0x1f, 1),
 529         AZF3328_MIXER_SWITCH("Wave Playback 3D Bypass", IDX_MIXER_ADVCTL2, 7, 1),
 530         AZF3328_MIXER_SWITCH("FM Playback Switch", IDX_MIXER_FMSYNTH, 15, 1),
 531         AZF3328_MIXER_VOL_STEREO("FM Playback Volume", IDX_MIXER_FMSYNTH, 0x1f, 1),
 532         AZF3328_MIXER_SWITCH("CD Playback Switch", IDX_MIXER_CDAUDIO, 15, 1),
 533         AZF3328_MIXER_VOL_STEREO("CD Playback Volume", IDX_MIXER_CDAUDIO, 0x1f, 1),
 534         AZF3328_MIXER_SWITCH("Capture Switch", IDX_MIXER_REC_VOLUME, 15, 1),
 535         AZF3328_MIXER_VOL_STEREO("Capture Volume", IDX_MIXER_REC_VOLUME, 0x0f, 0),
 536         AZF3328_MIXER_ENUM("Capture Source", IDX_MIXER_REC_SELECT, 8, 0),
 537         AZF3328_MIXER_SWITCH("Mic Playback Switch", IDX_MIXER_MIC, 15, 1),
 538         AZF3328_MIXER_VOL_MONO("Mic Playback Volume", IDX_MIXER_MIC, 0x1f, 1),
 539         AZF3328_MIXER_SWITCH("Mic Boost (+20dB)", IDX_MIXER_MIC, 6, 0),
 540         AZF3328_MIXER_SWITCH("Line Playback Switch", IDX_MIXER_LINEIN, 15, 1),
 541         AZF3328_MIXER_VOL_STEREO("Line Playback Volume", IDX_MIXER_LINEIN, 0x1f, 1),
 542         AZF3328_MIXER_SWITCH("PCBeep Playback Switch", IDX_MIXER_PCBEEP, 15, 1),
 543         AZF3328_MIXER_VOL_SPECIAL("PCBeep Playback Volume", IDX_MIXER_PCBEEP, 0x0f, 1, 1),
 544         AZF3328_MIXER_SWITCH("Video Playback Switch", IDX_MIXER_VIDEO, 15, 1),
 545         AZF3328_MIXER_VOL_STEREO("Video Playback Volume", IDX_MIXER_VIDEO, 0x1f, 1),
 546         AZF3328_MIXER_SWITCH("Aux Playback Switch", IDX_MIXER_AUX, 15, 1),
 547         AZF3328_MIXER_VOL_STEREO("Aux Playback Volume", IDX_MIXER_AUX, 0x1f, 1),
 548         AZF3328_MIXER_SWITCH("Modem Playback Switch", IDX_MIXER_MODEMOUT, 15, 1),
 549         AZF3328_MIXER_VOL_MONO("Modem Playback Volume", IDX_MIXER_MODEMOUT, 0x1f, 1),
 550         AZF3328_MIXER_SWITCH("Modem Capture Switch", IDX_MIXER_MODEMIN, 15, 1),
 551         AZF3328_MIXER_VOL_MONO("Modem Capture Volume", IDX_MIXER_MODEMIN, 0x1f, 1),
 552         AZF3328_MIXER_ENUM("Modem Out Select", IDX_MIXER_ADVCTL2, 2, 8),
 553         AZF3328_MIXER_ENUM("Mono Select Source", IDX_MIXER_ADVCTL2, 2, 9),
 554         AZF3328_MIXER_VOL_SPECIAL("Tone Control - Treble", IDX_MIXER_BASSTREBLE, 0x07, 1, 0),
 555         AZF3328_MIXER_VOL_SPECIAL("Tone Control - Bass", IDX_MIXER_BASSTREBLE, 0x07, 9, 0),
 556         AZF3328_MIXER_SWITCH("3D Control - Toggle", IDX_MIXER_ADVCTL2, 13, 0),
 557         AZF3328_MIXER_VOL_SPECIAL("3D Control - Volume", IDX_MIXER_ADVCTL1, 0x07, 1, 0), /* "3D Width" */
 558         AZF3328_MIXER_VOL_SPECIAL("3D Control - Space", IDX_MIXER_ADVCTL1, 0x03, 8, 0), /* "Hifi 3D" */
 559 #if MIXER_TESTING
 560         AZF3328_MIXER_SWITCH("0", IDX_MIXER_ADVCTL2, 0, 0),
 561         AZF3328_MIXER_SWITCH("1", IDX_MIXER_ADVCTL2, 1, 0),
 562         AZF3328_MIXER_SWITCH("2", IDX_MIXER_ADVCTL2, 2, 0),
 563         AZF3328_MIXER_SWITCH("3", IDX_MIXER_ADVCTL2, 3, 0),
 564         AZF3328_MIXER_SWITCH("4", IDX_MIXER_ADVCTL2, 4, 0),
 565         AZF3328_MIXER_SWITCH("5", IDX_MIXER_ADVCTL2, 5, 0),
 566         AZF3328_MIXER_SWITCH("6", IDX_MIXER_ADVCTL2, 6, 0),
 567         AZF3328_MIXER_SWITCH("7", IDX_MIXER_ADVCTL2, 7, 0),
 568         AZF3328_MIXER_SWITCH("8", IDX_MIXER_ADVCTL2, 8, 0),
 569         AZF3328_MIXER_SWITCH("9", IDX_MIXER_ADVCTL2, 9, 0),
 570         AZF3328_MIXER_SWITCH("10", IDX_MIXER_ADVCTL2, 10, 0),
 571         AZF3328_MIXER_SWITCH("11", IDX_MIXER_ADVCTL2, 11, 0),
 572         AZF3328_MIXER_SWITCH("12", IDX_MIXER_ADVCTL2, 12, 0),
 573         AZF3328_MIXER_SWITCH("13", IDX_MIXER_ADVCTL2, 13, 0),
 574         AZF3328_MIXER_SWITCH("14", IDX_MIXER_ADVCTL2, 14, 0),
 575         AZF3328_MIXER_SWITCH("15", IDX_MIXER_ADVCTL2, 15, 0),
 576 #endif
 577 };
 578
 579 #define AZF3328_INIT_VALUES (sizeof(snd_azf3328_init_values)/sizeof(unsigned int)/2)
 580
 581 static unsigned int snd_azf3328_init_values[][2] = {
 582         { IDX_MIXER_PLAY_MASTER,        MIXER_MUTE_MASK|0x1f1f },
 583         { IDX_MIXER_MODEMOUT,           MIXER_MUTE_MASK|0x1f1f },
 584         { IDX_MIXER_BASSTREBLE,         0x0000 },
 585         { IDX_MIXER_PCBEEP,             MIXER_MUTE_MASK|0x1f1f },
 586         { IDX_MIXER_MODEMIN,            MIXER_MUTE_MASK|0x1f1f },
 587         { IDX_MIXER_MIC,                MIXER_MUTE_MASK|0x001f },
 588         { IDX_MIXER_LINEIN,             MIXER_MUTE_MASK|0x1f1f },
 589         { IDX_MIXER_CDAUDIO,            MIXER_MUTE_MASK|0x1f1f },
 590         { IDX_MIXER_VIDEO,              MIXER_MUTE_MASK|0x1f1f },
 591         { IDX_MIXER_AUX,                MIXER_MUTE_MASK|0x1f1f },
 592         { IDX_MIXER_WAVEOUT,            MIXER_MUTE_MASK|0x1f1f },
 593         { IDX_MIXER_FMSYNTH,            MIXER_MUTE_MASK|0x1f1f },
 594         { IDX_MIXER_REC_VOLUME,         MIXER_MUTE_MASK|0x0707 },
 595 };
 596
 597 static int __devinit snd_azf3328_mixer_new(azf3328_t *chip)
 598 {
 599         snd_card_t *card;
 600         snd_kcontrol_new_t *sw;
 601         unsigned int idx;
 602         int err;
 603
 604         snd_azf3328_dbgcallenter();
 605         snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
 606
 607         card = chip->card;
 608
 609         /* mixer reset */
 610         snd_azf3328_mixer_write(chip, IDX_MIXER_RESET, 0x0, WORD_VALUE);
 611
 612         /* mute and zero volume channels */
 613         for (idx = 0; idx < AZF3328_INIT_VALUES; idx++) {
 614                 snd_azf3328_mixer_write(chip, snd_azf3328_init_values[idx][0], snd_azf3328_init_values[idx][1], WORD_VALUE);
 615         }
 616
 617         /* add mixer controls */
 618         sw = snd_azf3328_mixer_controls;
 619         for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_mixer_controls); idx++, sw++) {
 620                 if ((err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip))) < 0)
 621                         return err;
 622         }
 623         snd_component_add(card, "AZF3328 mixer");
 624         strcpy(card->mixername, "AZF3328 mixer");
 625
 626         snd_azf3328_dbgcallleave();
 627         return 0;
 628 }
 629
 630 static int snd_azf3328_hw_params(snd_pcm_substream_t * substream,
 631                                  snd_pcm_hw_params_t * hw_params)
 632 {
 633         int res;
 634         snd_azf3328_dbgcallenter();
 635         res = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 636         snd_azf3328_dbgcallleave();
 637         return res;
 638 }
 639
 640 static int snd_azf3328_hw_free(snd_pcm_substream_t * substream)
 641 {
 642         snd_azf3328_dbgcallenter();
 643         snd_pcm_lib_free_pages(substream);
 644         snd_azf3328_dbgcallleave();
 645         return 0;
 646 }
 647
 648 static void snd_azf3328_setfmt(azf3328_t *chip,
 649                                unsigned int reg,
 650                                unsigned int bitrate,
 651                                unsigned int format_width,
 652                                unsigned int channels
 653 )
 654 {
 655         unsigned int val = 0xff00;
 656         unsigned long flags;
 657
 658         snd_azf3328_dbgcallenter();
 659         switch (bitrate) {
 660         case  5512: val |= 0x0d; break; /* the AZF3328 names it "5510" for some strange reason */
 661         case  6620: val |= 0x0b; break;
 662         case  8000: val |= 0x00; break;
 663         case  9600: val |= 0x08; break;
 664         case 11025: val |= 0x01; break;
 665         case 16000: val |= 0x02; break;
 666         case 22050: val |= 0x03; break;
 667         case 32000: val |= 0x04; break;
 668         case 44100: val |= 0x05; break;
 669         case 48000: val |= 0x06; break;
 670         case 64000: val |= 0x07; break;
 671         default:
 672                 snd_printk("unknown bitrate %d, assuming 44.1kHz!\n", bitrate);
 673                 val |= 0x05; /* 44100 */
 674                 break;
 675         }
 676         /* val = 0xff07; 3m27.993s (65301Hz; -> 64000Hz???) */
 677         /* val = 0xff09; 17m15.098s (13123,478Hz; -> 12000Hz???) */
 678         /* val = 0xff0a; 47m30.599s (4764,891Hz; -> 4800Hz???) */
 679         /* val = 0xff0c; 57m0.510s (4010,263Hz; -> 4000Hz???) */
 680         /* val = 0xff05; 5m11.556s (... -> 44100Hz) */
 681         /* val = 0xff03; 10m21.529s (21872,463Hz; -> 22050Hz???) */
 682         /* val = 0xff0f; 20m41.883s (10937,993Hz; -> 11025Hz???) */
 683         /* val = 0xff0d; 41m23.135s (5523,600Hz; -> 5512Hz???) */
 684         /* val = 0xff0e; 28m30.777s (8017Hz; -> 8000Hz???) */
 685         if (channels == 2)
 686                 val |= SOUNDFORMAT_FLAG_2CHANNELS;
 687
 688         if (format_width == 16)
 689                 val |= SOUNDFORMAT_FLAG_16BIT;
 690
 691         spin_lock_irqsave(&chip->reg_lock, flags);
 692
 693         /* set bitrate/format */
 694         outw(val, chip->codec_port+reg);
 695
 696         /* changing the bitrate/format settings switches off the
 697          * audio output with an annoying click in case of 8/16bit format change
 698          * (maybe shutting down DAC/ADC?), thus immediately
 699          * do some tweaking to reenable it and get rid of the clicking
 700          * (FIXME: yes, it works, but what exactly am I doing here?? :)
 701          * FIXME: does this have some side effects for full-duplex
 702          * or other dramatic side effects? */
 703         if (reg == IDX_IO_PLAY_SOUNDFORMAT) /* only do it for playback */
 704                 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);
 705
 706         spin_unlock_irqrestore(&chip->reg_lock, flags);
 707         snd_azf3328_dbgcallleave();
 708 }
 709
 710 static void snd_azf3328_setdmaa(azf3328_t *chip,
 711                                 long unsigned int addr,
 712                                 unsigned int count,
 713                                 unsigned int size,
 714                                 int do_recording)
 715 {
 716         long unsigned int addr1;
 717         long unsigned int addr2;
 718         unsigned int count1;
 719         unsigned int count2;
 720         unsigned long flags;
 721         int reg_offs = do_recording ? 0x20 : 0x00;
 722
 723         snd_azf3328_dbgcallenter();
 724         /* AZF3328 uses a two buffer pointer DMA playback approach */
 725         if (!chip->is_playing)
 726         {
 727                 addr1 = addr;
 728                 addr2 = addr+(size/2);
 729                 count1 = (size/2)-1;
 730                 count2 = (size/2)-1;
 731 #if DEBUG_PLAY_REC
 732                 snd_azf3328_dbgplay("setting dma: buf1 %08lx[%d], buf2 %08lx[%d]\n", addr1, count1, addr2, count2);
 733 #endif
 734                 spin_lock_irqsave(&chip->reg_lock, flags);
 735                 outl(addr1, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_START_1);
 736                 outl(addr2, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_START_2);
 737                 outw(count1, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_LEN_1);
 738                 outw(count2, chip->codec_port+reg_offs+IDX_IO_PLAY_DMA_LEN_2);
 739                 spin_unlock_irqrestore(&chip->reg_lock, flags);
 740         }
 741         snd_azf3328_dbgcallleave();
 742 }
 743
 744 static int snd_azf3328_playback_prepare(snd_pcm_substream_t *substream)
 745 {
 746 #if 0
 747         azf3328_t *chip = snd_pcm_substream_chip(substream);
 748         snd_pcm_runtime_t *runtime = substream->runtime;
 749         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 750         unsigned int count = snd_pcm_lib_period_bytes(substream);
 751 #endif
 752
 753         snd_azf3328_dbgcallenter();
 754 #if 0
 755         snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
 756         snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 0);
 757 #endif
 758         snd_azf3328_dbgcallleave();
 759         return 0;
 760 }
 761
 762 static int snd_azf3328_capture_prepare(snd_pcm_substream_t * substream)
 763 {
 764 #if 0
 765         azf3328_t *chip = snd_pcm_substream_chip(substream);
 766         snd_pcm_runtime_t *runtime = substream->runtime;
 767         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 768         unsigned int count = snd_pcm_lib_period_bytes(substream);
 769 #endif
 770
 771         snd_azf3328_dbgcallenter();
 772 #if 0
 773         snd_azf3328_setfmt(chip, IDX_IO_REC_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
 774         snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 1);
 775 #endif
 776         snd_azf3328_dbgcallleave();
 777         return 0;
 778 }
 779
 780 static int snd_azf3328_playback_trigger(snd_pcm_substream_t * substream, int cmd)
 781 {
 782         azf3328_t *chip = snd_pcm_substream_chip(substream);
 783         snd_pcm_runtime_t *runtime = substream->runtime;
 784         int result = 0;
 785         unsigned int status1;
 786
 787         snd_azf3328_dbgcalls("snd_azf3328_playback_trigger cmd %d\n", cmd);
 788         switch (cmd) {
 789         case SNDRV_PCM_TRIGGER_START:
 790
 791                 snd_azf3328_dbgio(chip, "trigger1");
 792
 793                 /* mute WaveOut */
 794                 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
 795
 796                 snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
 797
 798                 spin_lock(&chip->reg_lock);
 799                 /* stop playback */
 800                 status1 = inw(chip->codec_port+IDX_IO_PLAY_FLAGS);
 801                 status1 &= ~DMA_RESUME;
 802                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 803
 804                 /* FIXME: clear interrupts or what??? */
 805                 outw(0xffff, chip->codec_port+IDX_IO_PLAY_IRQMASK);
 806                 spin_unlock(&chip->reg_lock);
 807
 808                 snd_azf3328_setdmaa(chip, runtime->dma_addr, snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream), 0);
 809
 810                 spin_lock(&chip->reg_lock);
 811 #ifdef WIN9X
 812                 /* FIXME: enable playback/recording??? */
 813                 status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2;
 814                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 815
 816                 /* start playback again */
 817                 /* FIXME: what is this value (0x0010)??? */
 818                 status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
 819                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 820 #else /* NT4 */
 821                 outw(0x00, chip->codec_port+IDX_IO_PLAY_FLAGS);
 822                 outw(DMA_PLAY_SOMETHING1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 823                 outw(DMA_PLAY_SOMETHING1|DMA_PLAY_SOMETHING2, chip->codec_port+IDX_IO_PLAY_FLAGS);
 824                 outw(DMA_RESUME|SOMETHING_ALMOST_ALWAYS_SET|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port+IDX_IO_PLAY_FLAGS);
 825 #endif
 826                 spin_unlock(&chip->reg_lock);
 827
 828                 /* now unmute WaveOut */
 829                 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
 830
 831                 snd_azf3328_dbgio(chip, "trigger2");
 832                 chip->is_playing = 1;
 833                 break;
 834         case SNDRV_PCM_TRIGGER_STOP:
 835                 /* mute WaveOut */
 836                 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
 837
 838                 spin_lock(&chip->reg_lock);
 839                 /* stop playback */
 840                 status1 = inw(chip->codec_port+IDX_IO_PLAY_FLAGS);
 841
 842                 status1 &= ~DMA_RESUME;
 843                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 844
 845                 status1 |= DMA_PLAY_SOMETHING1;
 846                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 847
 848                 status1 &= ~DMA_PLAY_SOMETHING1;
 849                 outw(status1, chip->codec_port+IDX_IO_PLAY_FLAGS);
 850                 spin_unlock(&chip->reg_lock);
 851
 852                 /* now unmute WaveOut */
 853                 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
 854                 chip->is_playing = 0;
 855                 break;
 856         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 857                 snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
 858                 break;
 859         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 860                 snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
 861                 break;
 862         default:
 863                 return -EINVAL;
 864         }
 865
 866         snd_azf3328_dbgcallleave();
 867         return result;
 868 }
 869
 870 /* this is just analogous to playback; I'm not quite sure whether recording
 871  * should actually be triggered like that */
 872 static int snd_azf3328_capture_trigger(snd_pcm_substream_t * substream, int cmd)
 873 {
 874         azf3328_t *chip = snd_pcm_substream_chip(substream);
 875         snd_pcm_runtime_t *runtime = substream->runtime;
 876         int result = 0;
 877         unsigned int status1;
 878
 879         snd_azf3328_dbgcalls("snd_azf3328_capture_trigger cmd %d\n", cmd);
 880         switch (cmd) {
 881         case SNDRV_PCM_TRIGGER_START:
 882
 883                 snd_azf3328_dbgio(chip, "trigger1");
 884
 885                 snd_azf3328_setfmt(chip, IDX_IO_REC_SOUNDFORMAT, runtime->rate, snd_pcm_format_width(runtime->format), runtime->channels);
 886
 887                 spin_lock(&chip->reg_lock);
 888                 /* stop recording */
 889                 status1 = inw(chip->codec_port+IDX_IO_REC_FLAGS);
 890                 status1 &= ~DMA_RESUME;
 891                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 892
 893                 /* FIXME: clear interrupts or what??? */
 894                 outw(0xffff, chip->codec_port+IDX_IO_REC_IRQMASK);
 895                 spin_unlock(&chip->reg_lock);
 896
 897                 snd_azf3328_setdmaa(chip, runtime->dma_addr, snd_pcm_lib_period_bytes(substream), snd_pcm_lib_buffer_bytes(substream), 1);
 898
 899                 spin_lock(&chip->reg_lock);
 900 #ifdef WIN9X
 901                 /* FIXME: enable playback/recording??? */
 902                 status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2;
 903                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 904
 905                 /* start playback again */
 906                 /* FIXME: what is this value (0x0010)??? */
 907                 status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
 908                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 909 #else
 910                 outw(0x00, chip->codec_port+IDX_IO_REC_FLAGS);
 911                 outw(DMA_PLAY_SOMETHING1, chip->codec_port+IDX_IO_REC_FLAGS);
 912                 outw(DMA_PLAY_SOMETHING1|DMA_PLAY_SOMETHING2, chip->codec_port+IDX_IO_REC_FLAGS);
 913                 outw(DMA_RESUME|SOMETHING_ALMOST_ALWAYS_SET|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port+IDX_IO_REC_FLAGS);
 914 #endif
 915                 spin_unlock(&chip->reg_lock);
 916
 917                 snd_azf3328_dbgio(chip, "trigger2");
 918                 chip->is_playing = 1;
 919                 break;
 920         case SNDRV_PCM_TRIGGER_STOP:
 921                 spin_lock(&chip->reg_lock);
 922                 /* stop recording */
 923                 status1 = inw(chip->codec_port+IDX_IO_REC_FLAGS);
 924
 925                 status1 &= ~DMA_RESUME;
 926                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 927
 928                 status1 |= DMA_PLAY_SOMETHING1;
 929                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 930
 931                 status1 &= ~DMA_PLAY_SOMETHING1;
 932                 outw(status1, chip->codec_port+IDX_IO_REC_FLAGS);
 933                 spin_unlock(&chip->reg_lock);
 934
 935                 chip->is_playing = 0;
 936                 break;
 937         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 938                 snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
 939                 break;
 940         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 941                 snd_printk("FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
 942                 break;
 943         default:
 944                 return -EINVAL;
 945         }
 946
 947         snd_azf3328_dbgcallleave();
 948         return result;
 949 }
 950
 951 static snd_pcm_uframes_t snd_azf3328_playback_pointer(snd_pcm_substream_t * substream)
 952 {
 953         azf3328_t *chip = snd_pcm_substream_chip(substream);
 954         unsigned long bufptr, playptr;
 955         unsigned long result;
 956         snd_pcm_uframes_t frmres;
 957
 958 #ifdef QUERY_HARDWARE
 959         bufptr = inl(chip->codec_port+IDX_IO_PLAY_DMA_START_1);
 960 #else
 961         bufptr = substream->runtime->dma_addr;
 962 #endif
 963         playptr = inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS);
 964
 965         result = playptr - bufptr;
 966         frmres = bytes_to_frames( substream->runtime, result );
 967         snd_azf3328_dbgplay("result %lx, playptr %lx (base %x), frames %ld\n", result, playptr, substream->runtime->dma_addr, frmres);
 968         return frmres;
 969 }
 970
 971 static snd_pcm_uframes_t snd_azf3328_capture_pointer(snd_pcm_substream_t * substream)
 972 {
 973         azf3328_t *chip = snd_pcm_substream_chip(substream);
 974         unsigned long bufptr, recptr;
 975         unsigned long result;
 976         snd_pcm_uframes_t frmres;
 977
 978 #ifdef QUERY_HARDWARE
 979         bufptr = inl(chip->codec_port+IDX_IO_REC_DMA_START_1);
 980 #else
 981         bufptr = substream->runtime->dma_addr;
 982 #endif
 983         recptr = inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS);
 984
 985         result = recptr - bufptr;
 986         frmres = bytes_to_frames( substream->runtime, result );
 987         snd_azf3328_dbgplay("result %lx, rec ptr %lx (base %x), frames %ld\n", result, recptr, substream->runtime->dma_addr, frmres);
 988         return frmres;
 989 }
 990
 991 static irqreturn_t snd_azf3328_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 992 {
 993         azf3328_t *chip = dev_id;
 994         unsigned int status, which;
 995         static unsigned long count;
 996
 997         status  = inw(chip->codec_port+IDX_IO_IRQSTATUS);
 998
 999         /* fast path out, to ease interrupt sharing */
1000         if (!(status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_MPU401|IRQ_SOMEIRQ)))
1001                 return IRQ_NONE; /* must be interrupt for another device */
1002
1003         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));
1004
1005         if (status & IRQ_PLAYBACK)
1006         {
1007                 spin_lock(&chip->reg_lock);
1008                 which = inw(chip->codec_port+IDX_IO_PLAY_IRQMASK);
1009                 if (which & IRQ_FINISHED_PLAYBUF_1)
1010                         /* ack IRQ */
1011                         outw(which | IRQ_FINISHED_PLAYBUF_1, chip->codec_port+IDX_IO_PLAY_IRQMASK);
1012                 if (which & IRQ_FINISHED_PLAYBUF_2)
1013                         /* ack IRQ */
1014                         outw(which | IRQ_FINISHED_PLAYBUF_2, chip->codec_port+IDX_IO_PLAY_IRQMASK);
1015                 if (which & IRQ_PLAY_SOMETHING)
1016                 {
1017                         snd_azf3328_dbgplay("azt3328: unknown play IRQ type occurred, please report!\n");
1018                 }
1019                 if (chip->pcm && chip->playback_substream)
1020                 {
1021                         snd_azf3328_dbgplay("which %x, playptr %lx\n", which, inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS));
1022                         snd_pcm_period_elapsed(chip->playback_substream);
1023                         snd_azf3328_dbgplay("period done, playptr %lx.\n", inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS));
1024                 }
1025                 else
1026                         snd_azf3328_dbgplay("azt3328: ouch, irq handler problem!\n");
1027                 spin_unlock(&chip->reg_lock);
1028         }
1029         if (status & IRQ_RECORDING)
1030         {
1031                 spin_lock(&chip->reg_lock);
1032                 which = inw(chip->codec_port+IDX_IO_REC_IRQMASK);
1033                 if (which & IRQ_FINISHED_RECBUF_1)
1034                         /* ack interrupt */
1035                         outw(which | IRQ_FINISHED_RECBUF_1, chip->codec_port+IDX_IO_REC_IRQMASK);
1036                 if (which & IRQ_FINISHED_RECBUF_2)
1037                         /* ack interrupt */
1038                         outw(which | IRQ_FINISHED_RECBUF_2, chip->codec_port+IDX_IO_REC_IRQMASK);
1039                 if (which & IRQ_REC_SOMETHING)
1040                 {
1041                         snd_azf3328_dbgplay("azt3328: unknown rec IRQ type occurred, please report!\n");
1042                 }
1043                 if (chip->pcm && chip->capture_substream)
1044                 {
1045                         snd_azf3328_dbgplay("which %x, recptr %lx\n", which, inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS));
1046                         spin_unlock(&chip->reg_lock);
1047                         snd_pcm_period_elapsed(chip->capture_substream);
1048                         spin_lock(&chip->reg_lock);
1049                         snd_azf3328_dbgplay("period done, recptr %lx.\n", inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS));
1050                 }
1051                 spin_unlock(&chip->reg_lock);
1052         }
1053         if (status & IRQ_MPU401)
1054                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1055         if (status & IRQ_SOMEIRQ)
1056                 snd_azf3328_dbgplay("azt3328: unknown IRQ type occurred, please report!\n");
1057         count++;
1058         return IRQ_HANDLED;
1059 }
1060
1061 /*****************************************************************/
1062
1063 static snd_pcm_hardware_t snd_azf3328_playback =
1064 {
1065         /* FIXME!! Correct? */
1066         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1067                                  SNDRV_PCM_INFO_MMAP_VALID),
1068         .formats =              SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1069                                 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE,
1070         .rates =                SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_KNOT,
1071         .rate_min =             5512,
1072         .rate_max =             64000,
1073         .channels_min =         1,
1074         .channels_max =         2,
1075         .buffer_bytes_max =     65536,
1076         .period_bytes_min =     64,
1077         .period_bytes_max =     65536,
1078         .periods_min =          1,
1079         .periods_max =          1024,
1080         /* FIXME: maybe that card actually has a FIFO?
1081          * Hmm, it seems newer revisions do have one, but we still don't know
1082          * its size... */
1083         .fifo_size =            0,
1084 };
1085
1086 static snd_pcm_hardware_t snd_azf3328_capture =
1087 {
1088         /* FIXME */
1089         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1090                                  SNDRV_PCM_INFO_MMAP_VALID),
1091         .formats =              SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
1092                                 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE,
1093         .rates =                SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_KNOT,
1094         .rate_min =             5512,
1095         .rate_max =             64000,
1096         .channels_min =         1,
1097         .channels_max =         2,
1098         .buffer_bytes_max =     65536,
1099         .period_bytes_min =     64,
1100         .period_bytes_max =     65536,
1101         .periods_min =          1,
1102         .periods_max =          1024,
1103         .fifo_size =            0,
1104 };
1105
1106
1107 static unsigned int snd_azf3328_fixed_rates[] = {
1108         5512, 6620, 8000, 9600, 11025, 16000, 22050, 32000, 44100, 48000, 64000
1109 };
1110 static snd_pcm_hw_constraint_list_t snd_azf3328_hw_constraints_rates = {
1111         .count = ARRAY_SIZE(snd_azf3328_fixed_rates),
1112         .list = snd_azf3328_fixed_rates,
1113         .mask = 0,
1114 };
1115
1116 /*****************************************************************/
1117
1118 static int snd_azf3328_playback_open(snd_pcm_substream_t * substream)
1119 {
1120         azf3328_t *chip = snd_pcm_substream_chip(substream);
1121         snd_pcm_runtime_t *runtime = substream->runtime;
1122
1123         snd_azf3328_dbgcallenter();
1124         chip->playback_substream = substream;
1125         runtime->hw = snd_azf3328_playback;
1126         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1127                                    &snd_azf3328_hw_constraints_rates);
1128         snd_azf3328_dbgcallleave();
1129         return 0;
1130 }
1131
1132 static int snd_azf3328_capture_open(snd_pcm_substream_t * substream)
1133 {
1134         azf3328_t *chip = snd_pcm_substream_chip(substream);
1135         snd_pcm_runtime_t *runtime = substream->runtime;
1136
1137         snd_azf3328_dbgcallenter();
1138         chip->capture_substream = substream;
1139         runtime->hw = snd_azf3328_capture;
1140         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1141                                    &snd_azf3328_hw_constraints_rates);
1142         snd_azf3328_dbgcallleave();
1143         return 0;
1144 }
1145
1146 static int snd_azf3328_playback_close(snd_pcm_substream_t * substream)
1147 {
1148         azf3328_t *chip = snd_pcm_substream_chip(substream);
1149
1150         snd_azf3328_dbgcallenter();
1151
1152         chip->playback_substream = NULL;
1153         snd_azf3328_dbgcallleave();
1154         return 0;
1155 }
1156
1157 static int snd_azf3328_capture_close(snd_pcm_substream_t * substream)
1158 {
1159         azf3328_t *chip = snd_pcm_substream_chip(substream);
1160
1161         snd_azf3328_dbgcallenter();
1162         chip->capture_substream = NULL;
1163         snd_azf3328_dbgcallleave();
1164         return 0;
1165 }
1166
1167 /******************************************************************/
1168
1169 static snd_pcm_ops_t snd_azf3328_playback_ops = {
1170         .open =         snd_azf3328_playback_open,
1171         .close =        snd_azf3328_playback_close,
1172         .ioctl =        snd_pcm_lib_ioctl,
1173         .hw_params =    snd_azf3328_hw_params,
1174         .hw_free =      snd_azf3328_hw_free,
1175         .prepare =      snd_azf3328_playback_prepare,
1176         .trigger =      snd_azf3328_playback_trigger,
1177         .pointer =      snd_azf3328_playback_pointer
1178 };
1179
1180 static snd_pcm_ops_t snd_azf3328_capture_ops = {
1181         .open =         snd_azf3328_capture_open,
1182         .close =        snd_azf3328_capture_close,
1183         .ioctl =        snd_pcm_lib_ioctl,
1184         .hw_params =    snd_azf3328_hw_params,
1185         .hw_free =      snd_azf3328_hw_free,
1186         .prepare =      snd_azf3328_capture_prepare,
1187         .trigger =      snd_azf3328_capture_trigger,
1188         .pointer =      snd_azf3328_capture_pointer
1189 };
1190
1191 static void snd_azf3328_pcm_free(snd_pcm_t *pcm)
1192 {
1193         azf3328_t *chip = pcm->private_data;
1194         chip->pcm = NULL;
1195         snd_pcm_lib_preallocate_free_for_all(pcm);
1196 }
1197
1198 static int __devinit snd_azf3328_pcm(azf3328_t *chip, int device)
1199 {
1200         snd_pcm_t *pcm;
1201         int err;
1202
1203         snd_azf3328_dbgcallenter();
1204         if ((err = snd_pcm_new(chip->card, "AZF3328 DSP", device, 1, 1, &pcm)) < 0)
1205                 return err;
1206         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_azf3328_playback_ops);
1207         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_azf3328_capture_ops);
1208
1209         pcm->private_data = chip;
1210         pcm->private_free = snd_azf3328_pcm_free;
1211         pcm->info_flags = 0;
1212         strcpy(pcm->name, chip->card->shortname);
1213         chip->pcm = pcm;
1214
1215         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1216                                               snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1217
1218         snd_azf3328_dbgcallleave();
1219         return 0;
1220 }
1221
1222 /******************************************************************/
1223
1224 #ifdef SUPPORT_JOYSTICK
1225 static int __devinit snd_azf3328_config_joystick(azf3328_t *chip, int dev)
1226 {
1227         struct gameport *gp;
1228         struct resource *r;
1229
1230         if (!joystick[dev])
1231                 return -ENODEV;
1232
1233         if (!(r = request_region(0x200, 8, "AZF3328 gameport"))) {
1234                 printk(KERN_WARNING "azt3328: cannot reserve joystick ports\n");
1235                 return -EBUSY;
1236         }
1237
1238         chip->gameport = gp = gameport_allocate_port();
1239         if (!gp) {
1240                 printk(KERN_ERR "azt3328: cannot allocate memory for gameport\n");
1241                 release_resource(r);
1242                 kfree_nocheck(r);
1243                 return -ENOMEM;
1244         }
1245
1246         gameport_set_name(gp, "AZF3328 Gameport");
1247         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1248         gameport_set_dev_parent(gp, &chip->pci->dev);
1249         gp->io = 0x200;
1250         gameport_set_port_data(gp, r);
1251
1252         snd_azf3328_io2_write(chip, IDX_IO2_LEGACY_ADDR,
1253                               snd_azf3328_io2_read(chip, IDX_IO2_LEGACY_ADDR) | LEGACY_JOY);
1254
1255         gameport_register_port(chip->gameport);
1256
1257         return 0;
1258 }
1259
1260 static void snd_azf3328_free_joystick(azf3328_t *chip)
1261 {
1262         if (chip->gameport) {
1263                 struct resource *r = gameport_get_port_data(chip->gameport);
1264
1265                 gameport_unregister_port(chip->gameport);
1266                 chip->gameport = NULL;
1267                 /* disable gameport */
1268                 snd_azf3328_io2_write(chip, IDX_IO2_LEGACY_ADDR,
1269                                       snd_azf3328_io2_read(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);
1270                 release_resource(r);
1271                 kfree_nocheck(r);
1272         }
1273 }
1274 #else
1275 static inline int snd_azf3328_config_joystick(azf3328_t *chip, int dev) { return -ENOSYS; }
1276 static inline void snd_azf3328_free_joystick(azf3328_t *chip) { }
1277 #endif
1278
1279 /******************************************************************/
1280
1281 static int snd_azf3328_free(azf3328_t *chip)
1282 {
1283         if (chip->irq < 0)
1284                 goto __end_hw;
1285
1286         /* reset (close) mixer */
1287         snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1); /* first mute master volume */
1288         snd_azf3328_mixer_write(chip, IDX_MIXER_RESET, 0x0, WORD_VALUE);
1289
1290         /* interrupt setup - mask everything */
1291         /* FIXME */
1292
1293         synchronize_irq(chip->irq);
1294       __end_hw:
1295         snd_azf3328_free_joystick(chip);
1296         if (chip->irq >= 0)
1297                 free_irq(chip->irq, (void *)chip);
1298         pci_release_regions(chip->pci);
1299         pci_disable_device(chip->pci);
1300
1301         kfree(chip);
1302         return 0;
1303 }
1304
1305 static int snd_azf3328_dev_free(snd_device_t *device)
1306 {
1307         azf3328_t *chip = device->device_data;
1308         return snd_azf3328_free(chip);
1309 }
1310
1311 #if 0
1312 /* check whether a bit can be modified */
1313 static void snd_azf3328_test_bit(unsigned int reg, int bit)
1314 {
1315         unsigned char val, valoff, valon;
1316
1317         val = inb(reg);
1318
1319         outb(val & ~(1 << bit), reg);
1320         valoff = inb(reg);
1321
1322         outb(val|(1 << bit), reg);
1323         valon = inb(reg);
1324
1325         outb(val, reg);
1326
1327         printk(KERN_ERR "reg %04x bit %d: %02x %02x %02x\n", reg, bit, val, valoff, valon);
1328 }
1329 #endif
1330
1331 static int __devinit snd_azf3328_create(snd_card_t * card,
1332                                          struct pci_dev *pci,
1333                                          unsigned long device_type,
1334                                          azf3328_t ** rchip)
1335 {
1336         azf3328_t *chip;
1337         int err;
1338         static snd_device_ops_t ops = {
1339                 .dev_free =     snd_azf3328_dev_free,
1340         };
1341         u16 tmp;
1342
1343         *rchip = NULL;
1344
1345         if ((err = pci_enable_device(pci)) < 0)
1346                 return err;
1347
1348         chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
1349         if (chip == NULL) {
1350                 pci_disable_device(pci);
1351                 return -ENOMEM;
1352         }
1353         spin_lock_init(&chip->reg_lock);
1354         chip->card = card;
1355         chip->pci = pci;
1356         chip->irq = -1;
1357
1358         /* check if we can restrict PCI DMA transfers to 24 bits */
1359         if (pci_set_dma_mask(pci, 0x00ffffff) < 0 ||
1360             pci_set_consistent_dma_mask(pci, 0x00ffffff) < 0) {
1361                 snd_printk("architecture does not support 24bit PCI busmaster DMA\n");
1362                 pci_disable_device(pci);
1363                 return -ENXIO;
1364         }
1365
1366         if ((err = pci_request_regions(pci, "Aztech AZF3328")) < 0) {
1367                 kfree(chip);
1368                 pci_disable_device(pci);
1369                 return err;
1370         }
1371
1372         chip->codec_port = pci_resource_start(pci, 0);
1373         chip->io2_port = pci_resource_start(pci, 1);
1374         chip->mpu_port = pci_resource_start(pci, 2);
1375         chip->synth_port = pci_resource_start(pci, 3);
1376         chip->mixer_port = pci_resource_start(pci, 4);
1377
1378         if (request_irq(pci->irq, snd_azf3328_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip)) {
1379                 snd_printk("unable to grab IRQ %d\n", pci->irq);
1380                 snd_azf3328_free(chip);
1381                 return -EBUSY;
1382         }
1383         chip->irq = pci->irq;
1384         pci_set_master(pci);
1385         synchronize_irq(chip->irq);
1386
1387         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);
1388
1389         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));
1390
1391         for (tmp=0; tmp <= 0x01; tmp += 1)
1392                 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));
1393
1394         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1395                 snd_azf3328_free(chip);
1396                 return err;
1397         }
1398
1399         /* create mixer interface & switches */
1400         if ((err = snd_azf3328_mixer_new(chip)) < 0)
1401                 return err;
1402
1403 #if 0
1404         /* set very low bitrate to reduce noise and power consumption? */
1405         snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, 5512, 8, 1);
1406 #endif
1407
1408         /* standard chip init stuff */
1409         spin_lock_irq(&chip->reg_lock);
1410         outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_PLAY_FLAGS);
1411         outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_SOMETHING_FLAGS);
1412         outb(DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE, chip->codec_port + IDX_IO_REC_FLAGS);
1413         outb(0x0, chip->codec_port + IDX_IO_IRQ63H);
1414
1415         spin_unlock_irq(&chip->reg_lock);
1416
1417         snd_card_set_dev(card, &pci->dev);
1418
1419         *rchip = chip;
1420         return 0;
1421 }
1422
1423 static int __devinit snd_azf3328_probe(struct pci_dev *pci,
1424                                           const struct pci_device_id *pci_id)
1425 {
1426         static int dev;
1427         snd_card_t *card;
1428         azf3328_t *chip;
1429         opl3_t *opl3;
1430         int err;
1431
1432         snd_azf3328_dbgcallenter();
1433         if (dev >= SNDRV_CARDS)
1434                 return -ENODEV;
1435         if (!enable[dev]) {
1436                 dev++;
1437                 return -ENOENT;
1438         }
1439
1440         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0 );
1441         if (card == NULL)
1442                 return -ENOMEM;
1443
1444         strcpy(card->driver, "AZF3328");
1445         strcpy(card->shortname, "Aztech AZF3328 (PCI168)");
1446
1447         if ((err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip)) < 0) {
1448                 snd_card_free(card);
1449                 return err;
1450         }
1451
1452         if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_MPU401,
1453                                         chip->mpu_port, 1, pci->irq, 0,
1454                                         &chip->rmidi)) < 0) {
1455                 snd_printk("azf3328: no MPU-401 device at 0x%lx?\n", chip->mpu_port);
1456                 snd_card_free(card);
1457                 return err;
1458         }
1459
1460         if ((err = snd_azf3328_pcm(chip, 0)) < 0) {
1461                 snd_card_free(card);
1462                 return err;
1463         }
1464
1465         if (snd_opl3_create(card, chip->synth_port, chip->synth_port+2,
1466                             OPL3_HW_AUTO, 1, &opl3) < 0) {
1467                 snd_printk("azf3328: no OPL3 device at 0x%lx-0x%lx?\n",
1468                            chip->synth_port, chip->synth_port+2 );
1469         } else {
1470                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1471                         snd_card_free(card);
1472                         return err;
1473                 }
1474         }
1475
1476         snd_azf3328_dbgio(chip, "create");
1477
1478         sprintf(card->longname, "%s at 0x%lx, irq %i",
1479                 card->shortname, chip->codec_port, chip->irq);
1480
1481         if ((err = snd_card_register(card)) < 0) {
1482                 snd_card_free(card);
1483                 return err;
1484         }
1485
1486 #ifdef MODULE
1487         printk(
1488 "azt3328: Experimental driver for Aztech AZF3328-based soundcards such as PCI168.\n"
1489 "azt3328: ZERO support from Aztech: you might think hard about future purchase.\n"
1490 "azt3328: Feel free to contact hw7oshyuv3001@sneakemail.com for bug reports etc.!\n");
1491 #endif
1492
1493         if (snd_azf3328_config_joystick(chip, dev) < 0)
1494                 snd_azf3328_io2_write(chip, IDX_IO2_LEGACY_ADDR,
1495                               snd_azf3328_io2_read(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);
1496
1497         pci_set_drvdata(pci, card);
1498         dev++;
1499
1500         snd_azf3328_dbgcallleave();
1501         return 0;
1502 }
1503
1504 static void __devexit snd_azf3328_remove(struct pci_dev *pci)
1505 {
1506         snd_azf3328_dbgcallenter();
1507         snd_card_free(pci_get_drvdata(pci));
1508         pci_set_drvdata(pci, NULL);
1509         snd_azf3328_dbgcallleave();
1510 }
1511
1512 static struct pci_driver driver = {
1513         .name = "AZF3328",
1514         .id_table = snd_azf3328_ids,
1515         .probe = snd_azf3328_probe,
1516         .remove = __devexit_p(snd_azf3328_remove),
1517 };
1518
1519 static int __init alsa_card_azf3328_init(void)
1520 {
1521         int err;
1522         snd_azf3328_dbgcallenter();
1523         err = pci_register_driver(&driver);
1524         snd_azf3328_dbgcallleave();
1525         return err;
1526 }
1527
1528 static void __exit alsa_card_azf3328_exit(void)
1529 {
1530         snd_azf3328_dbgcallenter();
1531         pci_unregister_driver(&driver);
1532         snd_azf3328_dbgcallleave();
1533 }
1534
1535 module_init(alsa_card_azf3328_init)
1536 module_exit(alsa_card_azf3328_exit)