1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168). 3 * Copyright (C) 2002, 2005 - 2011 by Andreas Mohr <andi AT lisas.de> 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 * Keywords: Windows XP Vista 168nt4-125.zip 168win95-125.zip PCI 168 download 14 * (XP/Vista do not support this card at all but every Linux distribution 15 * has very good support out of the box; 16 * just to make sure that the right people hit this and get to know that, 17 * despite the high level of Internet ignorance - as usual :-P - 18 * about very good support for this card - on Linux!) 19 * 20 * NOTES 21 * Since Aztech does not provide any chipset documentation, 22 * even on repeated request to various addresses, 23 * and the answer that was finally given was negative 24 * (and I was stupid enough to manage to get hold of a PCI168 soundcard 25 * in the first place >:-P}), 26 * I was forced to base this driver on reverse engineering 27 * (3 weeks' worth of evenings filled with driver work). 28 * (and no, I did NOT go the easy way: to pick up a SB PCI128 for 9 Euros) 29 * 30 * It is quite likely that the AZF3328 chip is the PCI cousin of the 31 * AZF3318 ("azt1020 pnp", "MM Pro 16") ISA chip, given very similar specs. 32 * 33 * The AZF3328 chip (note: AZF3328, *not* AZT3328, that's just the driver name 34 * for compatibility reasons) from Azfin (joint-venture of Aztech and Fincitec, 35 * Fincitec acquired by National Semiconductor in 2002, together with the 36 * Fincitec-related company ARSmikro) has the following features: 37 * 38 * - compatibility & compliance: 39 * - Microsoft PC 97 ("PC 97 Hardware Design Guide", 40 * http://www.microsoft.com/whdc/archive/pcguides.mspx) 41 * - Microsoft PC 98 Baseline Audio 42 * - MPU401 UART 43 * - Sound Blaster Emulation (DOS Box) 44 * - builtin AC97 conformant codec (SNR over 80dB) 45 * Note that "conformant" != "compliant"!! this chip's mixer register layout 46 * *differs* from the standard AC97 layout: 47 * they chose to not implement the headphone register (which is not a 48 * problem since it's merely optional), yet when doing this, they committed 49 * the grave sin of letting other registers follow immediately instead of 50 * keeping a headphone dummy register, thereby shifting the mixer register 51 * addresses illegally. So far unfortunately it looks like the very flexible 52 * ALSA AC97 support is still not enough to easily compensate for such a 53 * grave layout violation despite all tweaks and quirks mechanisms it offers. 54 * Well, not quite: now ac97 layer is much improved (bus-specific ops!), 55 * thus I was able to implement support - it's actually working quite well. 56 * An interesting item might be Aztech AMR 2800-W, since it's an AC97 57 * modem card which might reveal the Aztech-specific codec ID which 58 * we might want to pretend, too. Dito PCI168's brother, PCI368, 59 * where the advertising datasheet says it's AC97-based and has a 60 * Digital Enhanced Game Port. 61 * - builtin genuine OPL3 - verified to work fine, 20080506 62 * - full duplex 16bit playback/record at independent sampling rate 63 * - MPU401 (+ legacy address support, claimed by one official spec sheet) 64 * FIXME: how to enable legacy addr?? 65 * - game port (legacy address support) 66 * - builtin DirectInput support, helps reduce CPU overhead (interrupt-driven 67 * features supported). - See common term "Digital Enhanced Game Port"... 68 * (probably DirectInput 3.0 spec - confirm) 69 * - builtin 3D enhancement (said to be YAMAHA Ymersion) 70 * - built-in General DirectX timer having a 20 bits counter 71 * with 1us resolution (see below!) 72 * - I2S serial output port for external DAC 73 * [FIXME: 3.3V or 5V level? maximum rate is 66.2kHz right?] 74 * - supports 33MHz PCI spec 2.1, PCI power management 1.0, compliant with ACPI 75 * - supports hardware volume control 76 * - single chip low cost solution (128 pin QFP) 77 * - supports programmable Sub-vendor and Sub-system ID [24C02 SEEPROM chip] 78 * required for Microsoft's logo compliance (FIXME: where?) 79 * At least the Trident 4D Wave DX has one bit somewhere 80 * to enable writes to PCI subsystem VID registers, that should be it. 81 * This might easily be in extended PCI reg space, since PCI168 also has 82 * some custom data starting at 0x80. What kind of config settings 83 * are located in our extended PCI space anyway?? 84 * - PCI168 AP(W) card: power amplifier with 4 Watts/channel at 4 Ohms 85 * [TDA1517P chip] 86 * 87 * Note that this driver now is actually *better* than the Windows driver, 88 * since it additionally supports the card's 1MHz DirectX timer - just try 89 * the following snd-seq module parameters etc.: 90 * - options snd-seq seq_default_timer_class=2 seq_default_timer_sclass=0 91 * seq_default_timer_card=0 seq_client_load=1 seq_default_timer_device=0 92 * seq_default_timer_subdevice=0 seq_default_timer_resolution=1000000 93 * - "timidity -iAv -B2,8 -Os -EFreverb=0" 94 * - "pmidi -p 128:0 jazz.mid" 95 * 96 * OPL3 hardware playback testing, try something like: 97 * cat /proc/asound/hwdep 98 * and 99 * aconnect -o 100 * Then use 101 * sbiload -Dhw:x,y --opl3 /usr/share/sounds/opl3/std.o3 ......./drums.o3 102 * where x,y is the xx-yy number as given in hwdep. 103 * Then try 104 * pmidi -p a:b jazz.mid 105 * where a:b is the client number plus 0 usually, as given by aconnect above. 106 * Oh, and make sure to unmute the FM mixer control (doh!) 107 * NOTE: power use during OPL3 playback is _VERY_ high (70W --> 90W!) 108 * despite no CPU activity, possibly due to hindering ACPI idling somehow. 109 * Shouldn't be a problem of the AZF3328 chip itself, I'd hope. 110 * Higher PCM / FM mixer levels seem to conflict (causes crackling), 111 * at least sometimes. Maybe even use with hardware sequencer timer above :) 112 * adplay/adplug-utils might soon offer hardware-based OPL3 playback, too. 113 * 114 * Certain PCI versions of this card are susceptible to DMA traffic underruns 115 * in some systems (resulting in sound crackling/clicking/popping), 116 * probably because they don't have a DMA FIFO buffer or so. 117 * Overview (PCI ID/PCI subID/PCI rev.): 118 * - no DMA crackling on SiS735: 0x50DC/0x1801/16 119 * - unknown performance: 0x50DC/0x1801/10 120 * (well, it's not bad on an Athlon 1800 with now very optimized IRQ handler) 121 * 122 * Crackling happens with VIA chipsets or, in my case, an SiS735, which is 123 * supposed to be very fast and supposed to get rid of crackling much 124 * better than a VIA, yet ironically I still get crackling, like many other 125 * people with the same chipset. 126 * Possible remedies: 127 * - use speaker (amplifier) output instead of headphone output 128 * (in case crackling is due to overloaded output clipping) 129 * - plug card into a different PCI slot, preferably one that isn't shared 130 * too much (this helps a lot, but not completely!) 131 * - get rid of PCI VGA card, use AGP instead 132 * - upgrade or downgrade BIOS 133 * - fiddle with PCI latency settings (setpci -v -s BUSID latency_timer=XX) 134 * Not too helpful. 135 * - Disable ACPI/power management/"Auto Detect RAM/PCI Clk" in BIOS 136 * 137 * BUGS 138 * - full-duplex might *still* be problematic, however a recent test was fine 139 * - (non-bug) "Bass/Treble or 3D settings don't work" - they do get evaluated 140 * if you set PCM output switch to "pre 3D" instead of "post 3D". 141 * If this can't be set, then get a mixer application that Isn't Stupid (tm) 142 * (e.g. kmix, gamix) - unfortunately several are!! 143 * - locking is not entirely clean, especially the audio stream activity 144 * ints --> may be racy 145 * - an _unconnected_ secondary joystick at the gameport will be reported 146 * to be "active" (floating values, not precisely -1) due to the way we need 147 * to read the Digital Enhanced Game Port. Not sure whether it is fixable. 148 * 149 * TODO 150 * - use PCI_VDEVICE 151 * - verify driver status on x86_64 152 * - test multi-card driver operation 153 * - (ab)use 1MHz DirectX timer as kernel clocksource 154 * - test MPU401 MIDI playback etc. 155 * - add more power micro-management (disable various units of the card 156 * as long as they're unused, to improve audio quality and save power). 157 * However this requires more I/O ports which I haven't figured out yet 158 * and which thus might not even exist... 159 * The standard suspend/resume functionality could probably make use of 160 * some improvement, too... 161 * - figure out what all unknown port bits are responsible for 162 * - figure out some cleverly evil scheme to possibly make ALSA AC97 code 163 * fully accept our quite incompatible ""AC97"" mixer and thus save some 164 * code (but I'm not too optimistic that doing this is possible at all) 165 * - use MMIO (memory-mapped I/O)? Slightly faster access, e.g. for gameport. 166 */ 167 168 #include <linux/io.h> 169 #include <linux/init.h> 170 #include <linux/bug.h> /* WARN_ONCE */ 171 #include <linux/pci.h> 172 #include <linux/delay.h> 173 #include <linux/slab.h> 174 #include <linux/gameport.h> 175 #include <linux/module.h> 176 #include <linux/dma-mapping.h> 177 #include <sound/core.h> 178 #include <sound/control.h> 179 #include <sound/pcm.h> 180 #include <sound/rawmidi.h> 181 #include <sound/mpu401.h> 182 #include <sound/opl3.h> 183 #include <sound/initval.h> 184 /* 185 * Config switch, to use ALSA's AC97 layer instead of old custom mixer crap. 186 * If the AC97 compatibility parts we needed to implement locally turn out 187 * to work nicely, then remove the old implementation eventually. 188 */ 189 #define AZF_USE_AC97_LAYER 1 190 191 #ifdef AZF_USE_AC97_LAYER 192 #include <sound/ac97_codec.h> 193 #endif 194 #include "azt3328.h" 195 196 MODULE_AUTHOR("Andreas Mohr <andi AT lisas.de>"); 197 MODULE_DESCRIPTION("Aztech AZF3328 (PCI168)"); 198 MODULE_LICENSE("GPL"); 199 MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}"); 200 201 #if IS_REACHABLE(CONFIG_GAMEPORT) 202 #define SUPPORT_GAMEPORT 1 203 #endif 204 205 /* === Debug settings === 206 Further diagnostic functionality than the settings below 207 does not need to be provided, since one can easily write a POSIX shell script 208 to dump the card's I/O ports (those listed in lspci -v -v): 209 dump() 210 { 211 local descr=$1; local addr=$2; local count=$3 212 213 echo "${descr}: ${count} @ ${addr}:" 214 dd if=/dev/port skip=`printf %d ${addr}` count=${count} bs=1 \ 215 2>/dev/null| hexdump -C 216 } 217 and then use something like 218 "dump joy200 0x200 8", "dump mpu388 0x388 4", "dump joy 0xb400 8", 219 "dump codec00 0xa800 32", "dump mixer 0xb800 64", "dump synth 0xbc00 8", 220 possibly within a "while true; do ... sleep 1; done" loop. 221 Tweaking ports could be done using 222 VALSTRING="`printf "%02x" $value`" 223 printf "\x""$VALSTRING"|dd of=/dev/port seek=`printf %d ${addr}` bs=1 \ 224 2>/dev/null 225 */ 226 227 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 228 module_param_array(index, int, NULL, 0444); 229 MODULE_PARM_DESC(index, "Index value for AZF3328 soundcard."); 230 231 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 232 module_param_array(id, charp, NULL, 0444); 233 MODULE_PARM_DESC(id, "ID string for AZF3328 soundcard."); 234 235 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 236 module_param_array(enable, bool, NULL, 0444); 237 MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard."); 238 239 static int seqtimer_scaling = 128; 240 module_param(seqtimer_scaling, int, 0444); 241 MODULE_PARM_DESC(seqtimer_scaling, "Set 1024000Hz sequencer timer scale factor (lockup danger!). Default 128."); 242 243 enum snd_azf3328_codec_type { 244 /* warning: fixed indices (also used for bitmask checks!) */ 245 AZF_CODEC_PLAYBACK = 0, 246 AZF_CODEC_CAPTURE = 1, 247 AZF_CODEC_I2S_OUT = 2, 248 }; 249 250 struct snd_azf3328_codec_data { 251 unsigned long io_base; /* keep first! (avoid offset calc) */ 252 unsigned int dma_base; /* helper to avoid an indirection in hotpath */ 253 spinlock_t *lock; /* TODO: convert to our own per-codec lock member */ 254 struct snd_pcm_substream *substream; 255 bool running; 256 enum snd_azf3328_codec_type type; 257 const char *name; 258 }; 259 260 struct snd_azf3328 { 261 /* often-used fields towards beginning, then grouped */ 262 263 unsigned long ctrl_io; /* usually 0xb000, size 128 */ 264 unsigned long game_io; /* usually 0xb400, size 8 */ 265 unsigned long mpu_io; /* usually 0xb800, size 4 */ 266 unsigned long opl3_io; /* usually 0xbc00, size 8 */ 267 unsigned long mixer_io; /* usually 0xc000, size 64 */ 268 269 spinlock_t reg_lock; 270 271 struct snd_timer *timer; 272 273 struct snd_pcm *pcm[3]; 274 275 /* playback, recording and I2S out codecs */ 276 struct snd_azf3328_codec_data codecs[3]; 277 278 #ifdef AZF_USE_AC97_LAYER 279 struct snd_ac97 *ac97; 280 #endif 281 282 struct snd_card *card; 283 struct snd_rawmidi *rmidi; 284 285 #ifdef SUPPORT_GAMEPORT 286 struct gameport *gameport; 287 u16 axes[4]; 288 #endif 289 290 struct pci_dev *pci; 291 int irq; 292 293 /* register 0x6a is write-only, thus need to remember setting. 294 * If we need to add more registers here, then we might try to fold this 295 * into some transparent combined shadow register handling with 296 * CONFIG_PM register storage below, but that's slightly difficult. */ 297 u16 shadow_reg_ctrl_6AH; 298 299 #ifdef CONFIG_PM_SLEEP 300 /* register value containers for power management 301 * Note: not always full I/O range preserved (similar to Win driver!) */ 302 u32 saved_regs_ctrl[AZF_ALIGN(AZF_IO_SIZE_CTRL_PM) / 4]; 303 u32 saved_regs_game[AZF_ALIGN(AZF_IO_SIZE_GAME_PM) / 4]; 304 u32 saved_regs_mpu[AZF_ALIGN(AZF_IO_SIZE_MPU_PM) / 4]; 305 u32 saved_regs_opl3[AZF_ALIGN(AZF_IO_SIZE_OPL3_PM) / 4]; 306 u32 saved_regs_mixer[AZF_ALIGN(AZF_IO_SIZE_MIXER_PM) / 4]; 307 #endif 308 }; 309 310 static const struct pci_device_id snd_azf3328_ids[] = { 311 { 0x122D, 0x50DC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* PCI168/3328 */ 312 { 0x122D, 0x80DA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* 3328 */ 313 { 0, } 314 }; 315 316 MODULE_DEVICE_TABLE(pci, snd_azf3328_ids); 317 318 319 static int 320 snd_azf3328_io_reg_setb(unsigned reg, u8 mask, bool do_set) 321 { 322 /* Well, strictly spoken, the inb/outb sequence isn't atomic 323 and would need locking. However we currently don't care 324 since it potentially complicates matters. */ 325 u8 prev = inb(reg), new; 326 327 new = (do_set) ? (prev|mask) : (prev & ~mask); 328 /* we need to always write the new value no matter whether it differs 329 * or not, since some register bits don't indicate their setting */ 330 outb(new, reg); 331 if (new != prev) 332 return 1; 333 334 return 0; 335 } 336 337 static inline void 338 snd_azf3328_codec_outb(const struct snd_azf3328_codec_data *codec, 339 unsigned reg, 340 u8 value 341 ) 342 { 343 outb(value, codec->io_base + reg); 344 } 345 346 static inline u8 347 snd_azf3328_codec_inb(const struct snd_azf3328_codec_data *codec, unsigned reg) 348 { 349 return inb(codec->io_base + reg); 350 } 351 352 static inline void 353 snd_azf3328_codec_outw(const struct snd_azf3328_codec_data *codec, 354 unsigned reg, 355 u16 value 356 ) 357 { 358 outw(value, codec->io_base + reg); 359 } 360 361 static inline u16 362 snd_azf3328_codec_inw(const struct snd_azf3328_codec_data *codec, unsigned reg) 363 { 364 return inw(codec->io_base + reg); 365 } 366 367 static inline void 368 snd_azf3328_codec_outl(const struct snd_azf3328_codec_data *codec, 369 unsigned reg, 370 u32 value 371 ) 372 { 373 outl(value, codec->io_base + reg); 374 } 375 376 static inline void 377 snd_azf3328_codec_outl_multi(const struct snd_azf3328_codec_data *codec, 378 unsigned reg, const void *buffer, int count 379 ) 380 { 381 unsigned long addr = codec->io_base + reg; 382 if (count) { 383 const u32 *buf = buffer; 384 do { 385 outl(*buf++, addr); 386 addr += 4; 387 } while (--count); 388 } 389 } 390 391 static inline u32 392 snd_azf3328_codec_inl(const struct snd_azf3328_codec_data *codec, unsigned reg) 393 { 394 return inl(codec->io_base + reg); 395 } 396 397 static inline void 398 snd_azf3328_ctrl_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value) 399 { 400 outb(value, chip->ctrl_io + reg); 401 } 402 403 static inline u8 404 snd_azf3328_ctrl_inb(const struct snd_azf3328 *chip, unsigned reg) 405 { 406 return inb(chip->ctrl_io + reg); 407 } 408 409 static inline u16 410 snd_azf3328_ctrl_inw(const struct snd_azf3328 *chip, unsigned reg) 411 { 412 return inw(chip->ctrl_io + reg); 413 } 414 415 static inline void 416 snd_azf3328_ctrl_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) 417 { 418 outw(value, chip->ctrl_io + reg); 419 } 420 421 static inline void 422 snd_azf3328_ctrl_outl(const struct snd_azf3328 *chip, unsigned reg, u32 value) 423 { 424 outl(value, chip->ctrl_io + reg); 425 } 426 427 static inline void 428 snd_azf3328_game_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value) 429 { 430 outb(value, chip->game_io + reg); 431 } 432 433 static inline void 434 snd_azf3328_game_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) 435 { 436 outw(value, chip->game_io + reg); 437 } 438 439 static inline u8 440 snd_azf3328_game_inb(const struct snd_azf3328 *chip, unsigned reg) 441 { 442 return inb(chip->game_io + reg); 443 } 444 445 static inline u16 446 snd_azf3328_game_inw(const struct snd_azf3328 *chip, unsigned reg) 447 { 448 return inw(chip->game_io + reg); 449 } 450 451 static inline void 452 snd_azf3328_mixer_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) 453 { 454 outw(value, chip->mixer_io + reg); 455 } 456 457 static inline u16 458 snd_azf3328_mixer_inw(const struct snd_azf3328 *chip, unsigned reg) 459 { 460 return inw(chip->mixer_io + reg); 461 } 462 463 #define AZF_MUTE_BIT 0x80 464 465 static bool 466 snd_azf3328_mixer_mute_control(const struct snd_azf3328 *chip, 467 unsigned reg, bool do_mute 468 ) 469 { 470 unsigned long portbase = chip->mixer_io + reg + 1; 471 bool updated; 472 473 /* the mute bit is on the *second* (i.e. right) register of a 474 * left/right channel setting */ 475 updated = snd_azf3328_io_reg_setb(portbase, AZF_MUTE_BIT, do_mute); 476 477 /* indicate whether it was muted before */ 478 return (do_mute) ? !updated : updated; 479 } 480 481 static inline bool 482 snd_azf3328_mixer_mute_control_master(const struct snd_azf3328 *chip, 483 bool do_mute 484 ) 485 { 486 return snd_azf3328_mixer_mute_control( 487 chip, 488 IDX_MIXER_PLAY_MASTER, 489 do_mute 490 ); 491 } 492 493 static inline bool 494 snd_azf3328_mixer_mute_control_pcm(const struct snd_azf3328 *chip, 495 bool do_mute 496 ) 497 { 498 return snd_azf3328_mixer_mute_control( 499 chip, 500 IDX_MIXER_WAVEOUT, 501 do_mute 502 ); 503 } 504 505 static inline void 506 snd_azf3328_mixer_reset(const struct snd_azf3328 *chip) 507 { 508 /* reset (close) mixer: 509 * first mute master volume, then reset 510 */ 511 snd_azf3328_mixer_mute_control_master(chip, 1); 512 snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000); 513 } 514 515 #ifdef AZF_USE_AC97_LAYER 516 517 static inline void 518 snd_azf3328_mixer_ac97_map_unsupported(const struct snd_azf3328 *chip, 519 unsigned short reg, const char *mode) 520 { 521 /* need to add some more or less clever emulation? */ 522 dev_warn(chip->card->dev, 523 "missing %s emulation for AC97 register 0x%02x!\n", 524 mode, reg); 525 } 526 527 /* 528 * Need to have _special_ AC97 mixer hardware register index mapper, 529 * to compensate for the issue of a rather AC97-incompatible hardware layout. 530 */ 531 #define AZF_REG_MASK 0x3f 532 #define AZF_AC97_REG_UNSUPPORTED 0x8000 533 #define AZF_AC97_REG_REAL_IO_READ 0x4000 534 #define AZF_AC97_REG_REAL_IO_WRITE 0x2000 535 #define AZF_AC97_REG_REAL_IO_RW \ 536 (AZF_AC97_REG_REAL_IO_READ | AZF_AC97_REG_REAL_IO_WRITE) 537 #define AZF_AC97_REG_EMU_IO_READ 0x0400 538 #define AZF_AC97_REG_EMU_IO_WRITE 0x0200 539 #define AZF_AC97_REG_EMU_IO_RW \ 540 (AZF_AC97_REG_EMU_IO_READ | AZF_AC97_REG_EMU_IO_WRITE) 541 static unsigned short 542 snd_azf3328_mixer_ac97_map_reg_idx(unsigned short reg) 543 { 544 static const struct { 545 unsigned short azf_reg; 546 } azf_reg_mapper[] = { 547 /* Especially when taking into consideration 548 * mono/stereo-based sequence of azf vs. AC97 control series, 549 * it's quite obvious that azf simply got rid 550 * of the AC97_HEADPHONE control at its intended offset, 551 * thus shifted _all_ controls by one, 552 * and _then_ simply added it as an FMSYNTH control at the end, 553 * to make up for the offset. 554 * This means we'll have to translate indices here as 555 * needed and then do some tiny AC97 patch action 556 * (snd_ac97_rename_vol_ctl() etc.) - that's it. 557 */ 558 { /* AC97_RESET */ IDX_MIXER_RESET 559 | AZF_AC97_REG_REAL_IO_WRITE 560 | AZF_AC97_REG_EMU_IO_READ }, 561 { /* AC97_MASTER */ IDX_MIXER_PLAY_MASTER }, 562 /* note large shift: AC97_HEADPHONE to IDX_MIXER_FMSYNTH! */ 563 { /* AC97_HEADPHONE */ IDX_MIXER_FMSYNTH }, 564 { /* AC97_MASTER_MONO */ IDX_MIXER_MODEMOUT }, 565 { /* AC97_MASTER_TONE */ IDX_MIXER_BASSTREBLE }, 566 { /* AC97_PC_BEEP */ IDX_MIXER_PCBEEP }, 567 { /* AC97_PHONE */ IDX_MIXER_MODEMIN }, 568 { /* AC97_MIC */ IDX_MIXER_MIC }, 569 { /* AC97_LINE */ IDX_MIXER_LINEIN }, 570 { /* AC97_CD */ IDX_MIXER_CDAUDIO }, 571 { /* AC97_VIDEO */ IDX_MIXER_VIDEO }, 572 { /* AC97_AUX */ IDX_MIXER_AUX }, 573 { /* AC97_PCM */ IDX_MIXER_WAVEOUT }, 574 { /* AC97_REC_SEL */ IDX_MIXER_REC_SELECT }, 575 { /* AC97_REC_GAIN */ IDX_MIXER_REC_VOLUME }, 576 { /* AC97_REC_GAIN_MIC */ AZF_AC97_REG_EMU_IO_RW }, 577 { /* AC97_GENERAL_PURPOSE */ IDX_MIXER_ADVCTL2 }, 578 { /* AC97_3D_CONTROL */ IDX_MIXER_ADVCTL1 }, 579 }; 580 581 unsigned short reg_azf = AZF_AC97_REG_UNSUPPORTED; 582 583 /* azf3328 supports the low-numbered and low-spec:ed range 584 of AC97 regs only */ 585 if (reg <= AC97_3D_CONTROL) { 586 unsigned short reg_idx = reg / 2; 587 reg_azf = azf_reg_mapper[reg_idx].azf_reg; 588 /* a translation-only entry means it's real read/write: */ 589 if (!(reg_azf & ~AZF_REG_MASK)) 590 reg_azf |= AZF_AC97_REG_REAL_IO_RW; 591 } else { 592 switch (reg) { 593 case AC97_POWERDOWN: 594 reg_azf = AZF_AC97_REG_EMU_IO_RW; 595 break; 596 case AC97_EXTENDED_ID: 597 reg_azf = AZF_AC97_REG_EMU_IO_READ; 598 break; 599 case AC97_EXTENDED_STATUS: 600 /* I don't know what the h*ll AC97 layer 601 * would consult this _extended_ register for 602 * given a base-AC97-advertised card, 603 * but let's just emulate it anyway :-P 604 */ 605 reg_azf = AZF_AC97_REG_EMU_IO_RW; 606 break; 607 case AC97_VENDOR_ID1: 608 case AC97_VENDOR_ID2: 609 reg_azf = AZF_AC97_REG_EMU_IO_READ; 610 break; 611 } 612 } 613 return reg_azf; 614 } 615 616 static const unsigned short 617 azf_emulated_ac97_caps = 618 AC97_BC_DEDICATED_MIC | 619 AC97_BC_BASS_TREBLE | 620 /* Headphone is an FM Synth control here */ 621 AC97_BC_HEADPHONE | 622 /* no AC97_BC_LOUDNESS! */ 623 /* mask 0x7c00 is 624 vendor-specific 3D enhancement 625 vendor indicator. 626 Since there actually _is_ an 627 entry for Aztech Labs 628 (13), make damn sure 629 to indicate it. */ 630 (13 << 10); 631 632 static const unsigned short 633 azf_emulated_ac97_powerdown = 634 /* pretend everything to be active */ 635 AC97_PD_ADC_STATUS | 636 AC97_PD_DAC_STATUS | 637 AC97_PD_MIXER_STATUS | 638 AC97_PD_VREF_STATUS; 639 640 /* 641 * Emulated, _inofficial_ vendor ID 642 * (there might be some devices such as the MR 2800-W 643 * which could reveal the real Aztech AC97 ID). 644 * We choose to use "AZT" prefix, and then use 1 to indicate PCI168 645 * (better don't use 0x68 since there's a PCI368 as well). 646 */ 647 static const unsigned int 648 azf_emulated_ac97_vendor_id = 0x415a5401; 649 650 static unsigned short 651 snd_azf3328_mixer_ac97_read(struct snd_ac97 *ac97, unsigned short reg_ac97) 652 { 653 const struct snd_azf3328 *chip = ac97->private_data; 654 unsigned short reg_azf = snd_azf3328_mixer_ac97_map_reg_idx(reg_ac97); 655 unsigned short reg_val = 0; 656 bool unsupported = false; 657 658 dev_dbg(chip->card->dev, "snd_azf3328_mixer_ac97_read reg_ac97 %u\n", 659 reg_ac97); 660 if (reg_azf & AZF_AC97_REG_UNSUPPORTED) 661 unsupported = true; 662 else { 663 if (reg_azf & AZF_AC97_REG_REAL_IO_READ) 664 reg_val = snd_azf3328_mixer_inw(chip, 665 reg_azf & AZF_REG_MASK); 666 else { 667 /* 668 * Proceed with dummy I/O read, 669 * to ensure compatible timing where this may matter. 670 * (ALSA AC97 layer usually doesn't call I/O functions 671 * due to intelligent I/O caching anyway) 672 * Choose a mixer register that's thoroughly unrelated 673 * to common audio (try to minimize distortion). 674 */ 675 snd_azf3328_mixer_inw(chip, IDX_MIXER_SOMETHING30H); 676 } 677 678 if (reg_azf & AZF_AC97_REG_EMU_IO_READ) { 679 switch (reg_ac97) { 680 case AC97_RESET: 681 reg_val |= azf_emulated_ac97_caps; 682 break; 683 case AC97_POWERDOWN: 684 reg_val |= azf_emulated_ac97_powerdown; 685 break; 686 case AC97_EXTENDED_ID: 687 case AC97_EXTENDED_STATUS: 688 /* AFAICS we simply can't support anything: */ 689 reg_val |= 0; 690 break; 691 case AC97_VENDOR_ID1: 692 reg_val = azf_emulated_ac97_vendor_id >> 16; 693 break; 694 case AC97_VENDOR_ID2: 695 reg_val = azf_emulated_ac97_vendor_id & 0xffff; 696 break; 697 default: 698 unsupported = true; 699 break; 700 } 701 } 702 } 703 if (unsupported) 704 snd_azf3328_mixer_ac97_map_unsupported(chip, reg_ac97, "read"); 705 706 return reg_val; 707 } 708 709 static void 710 snd_azf3328_mixer_ac97_write(struct snd_ac97 *ac97, 711 unsigned short reg_ac97, unsigned short val) 712 { 713 const struct snd_azf3328 *chip = ac97->private_data; 714 unsigned short reg_azf = snd_azf3328_mixer_ac97_map_reg_idx(reg_ac97); 715 bool unsupported = false; 716 717 dev_dbg(chip->card->dev, 718 "snd_azf3328_mixer_ac97_write reg_ac97 %u val %u\n", 719 reg_ac97, val); 720 if (reg_azf & AZF_AC97_REG_UNSUPPORTED) 721 unsupported = true; 722 else { 723 if (reg_azf & AZF_AC97_REG_REAL_IO_WRITE) 724 snd_azf3328_mixer_outw( 725 chip, 726 reg_azf & AZF_REG_MASK, 727 val 728 ); 729 else 730 if (reg_azf & AZF_AC97_REG_EMU_IO_WRITE) { 731 switch (reg_ac97) { 732 case AC97_REC_GAIN_MIC: 733 case AC97_POWERDOWN: 734 case AC97_EXTENDED_STATUS: 735 /* 736 * Silently swallow these writes. 737 * Since for most registers our card doesn't 738 * actually support a comparable feature, 739 * this is exactly what we should do here. 740 * The AC97 layer's I/O caching probably 741 * automatically takes care of all the rest... 742 * (remembers written values etc.) 743 */ 744 break; 745 default: 746 unsupported = true; 747 break; 748 } 749 } 750 } 751 if (unsupported) 752 snd_azf3328_mixer_ac97_map_unsupported(chip, reg_ac97, "write"); 753 } 754 755 static int 756 snd_azf3328_mixer_new(struct snd_azf3328 *chip) 757 { 758 struct snd_ac97_bus *bus; 759 struct snd_ac97_template ac97; 760 static struct snd_ac97_bus_ops ops = { 761 .write = snd_azf3328_mixer_ac97_write, 762 .read = snd_azf3328_mixer_ac97_read, 763 }; 764 int rc; 765 766 memset(&ac97, 0, sizeof(ac97)); 767 ac97.scaps = AC97_SCAP_SKIP_MODEM 768 | AC97_SCAP_AUDIO /* we support audio! */ 769 | AC97_SCAP_NO_SPDIF; 770 ac97.private_data = chip; 771 ac97.pci = chip->pci; 772 773 /* 774 * ALSA's AC97 layer has terrible init crackling issues, 775 * unfortunately, and since it makes use of AC97_RESET, 776 * there's no use trying to mute Master Playback proactively. 777 */ 778 779 rc = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus); 780 if (!rc) 781 rc = snd_ac97_mixer(bus, &ac97, &chip->ac97); 782 /* 783 * Make sure to complain loudly in case of AC97 init failure, 784 * since failure may happen quite often, 785 * due to this card being a very quirky AC97 "lookalike". 786 */ 787 if (rc) 788 dev_err(chip->card->dev, "AC97 init failed, err %d!\n", rc); 789 790 /* If we return an error here, then snd_card_free() should 791 * free up any ac97 codecs that got created, as well as the bus. 792 */ 793 return rc; 794 } 795 #else /* AZF_USE_AC97_LAYER */ 796 static void 797 snd_azf3328_mixer_write_volume_gradually(const struct snd_azf3328 *chip, 798 unsigned reg, 799 unsigned char dst_vol_left, 800 unsigned char dst_vol_right, 801 int chan_sel, int delay 802 ) 803 { 804 unsigned long portbase = chip->mixer_io + reg; 805 unsigned char curr_vol_left = 0, curr_vol_right = 0; 806 int left_change = 0, right_change = 0; 807 808 if (chan_sel & SET_CHAN_LEFT) { 809 curr_vol_left = inb(portbase + 1); 810 811 /* take care of muting flag contained in left channel */ 812 if (curr_vol_left & AZF_MUTE_BIT) 813 dst_vol_left |= AZF_MUTE_BIT; 814 else 815 dst_vol_left &= ~AZF_MUTE_BIT; 816 817 left_change = (curr_vol_left > dst_vol_left) ? -1 : 1; 818 } 819 820 if (chan_sel & SET_CHAN_RIGHT) { 821 curr_vol_right = inb(portbase + 0); 822 823 right_change = (curr_vol_right > dst_vol_right) ? -1 : 1; 824 } 825 826 do { 827 if (left_change) { 828 if (curr_vol_left != dst_vol_left) { 829 curr_vol_left += left_change; 830 outb(curr_vol_left, portbase + 1); 831 } else 832 left_change = 0; 833 } 834 if (right_change) { 835 if (curr_vol_right != dst_vol_right) { 836 curr_vol_right += right_change; 837 838 /* during volume change, the right channel is crackling 839 * somewhat more than the left channel, unfortunately. 840 * This seems to be a hardware issue. */ 841 outb(curr_vol_right, portbase + 0); 842 } else 843 right_change = 0; 844 } 845 if (delay) 846 mdelay(delay); 847 } while ((left_change) || (right_change)); 848 } 849 850 /* 851 * general mixer element 852 */ 853 struct azf3328_mixer_reg { 854 unsigned reg; 855 unsigned int lchan_shift, rchan_shift; 856 unsigned int mask; 857 unsigned int invert: 1; 858 unsigned int stereo: 1; 859 unsigned int enum_c: 4; 860 }; 861 862 #define COMPOSE_MIXER_REG(reg,lchan_shift,rchan_shift,mask,invert,stereo,enum_c) \ 863 ((reg) | (lchan_shift << 8) | (rchan_shift << 12) | \ 864 (mask << 16) | \ 865 (invert << 24) | \ 866 (stereo << 25) | \ 867 (enum_c << 26)) 868 869 static void snd_azf3328_mixer_reg_decode(struct azf3328_mixer_reg *r, unsigned long val) 870 { 871 r->reg = val & 0xff; 872 r->lchan_shift = (val >> 8) & 0x0f; 873 r->rchan_shift = (val >> 12) & 0x0f; 874 r->mask = (val >> 16) & 0xff; 875 r->invert = (val >> 24) & 1; 876 r->stereo = (val >> 25) & 1; 877 r->enum_c = (val >> 26) & 0x0f; 878 } 879 880 /* 881 * mixer switches/volumes 882 */ 883 884 #define AZF3328_MIXER_SWITCH(xname, reg, shift, invert) \ 885 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 886 .info = snd_azf3328_info_mixer, \ 887 .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \ 888 .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0x1, invert, 0, 0), \ 889 } 890 891 #define AZF3328_MIXER_VOL_STEREO(xname, reg, mask, invert) \ 892 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 893 .info = snd_azf3328_info_mixer, \ 894 .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \ 895 .private_value = COMPOSE_MIXER_REG(reg, 8, 0, mask, invert, 1, 0), \ 896 } 897 898 #define AZF3328_MIXER_VOL_MONO(xname, reg, mask, is_right_chan) \ 899 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 900 .info = snd_azf3328_info_mixer, \ 901 .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \ 902 .private_value = COMPOSE_MIXER_REG(reg, is_right_chan ? 0 : 8, 0, mask, 1, 0, 0), \ 903 } 904 905 #define AZF3328_MIXER_VOL_SPECIAL(xname, reg, mask, shift, invert) \ 906 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 907 .info = snd_azf3328_info_mixer, \ 908 .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \ 909 .private_value = COMPOSE_MIXER_REG(reg, shift, 0, mask, invert, 0, 0), \ 910 } 911 912 #define AZF3328_MIXER_ENUM(xname, reg, enum_c, shift) \ 913 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 914 .info = snd_azf3328_info_mixer_enum, \ 915 .get = snd_azf3328_get_mixer_enum, .put = snd_azf3328_put_mixer_enum, \ 916 .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0, 0, 0, enum_c), \ 917 } 918 919 static int 920 snd_azf3328_info_mixer(struct snd_kcontrol *kcontrol, 921 struct snd_ctl_elem_info *uinfo) 922 { 923 struct azf3328_mixer_reg reg; 924 925 snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); 926 uinfo->type = reg.mask == 1 ? 927 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 928 uinfo->count = reg.stereo + 1; 929 uinfo->value.integer.min = 0; 930 uinfo->value.integer.max = reg.mask; 931 return 0; 932 } 933 934 static int 935 snd_azf3328_get_mixer(struct snd_kcontrol *kcontrol, 936 struct snd_ctl_elem_value *ucontrol) 937 { 938 struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol); 939 struct azf3328_mixer_reg reg; 940 u16 oreg, val; 941 942 snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); 943 944 oreg = snd_azf3328_mixer_inw(chip, reg.reg); 945 val = (oreg >> reg.lchan_shift) & reg.mask; 946 if (reg.invert) 947 val = reg.mask - val; 948 ucontrol->value.integer.value[0] = val; 949 if (reg.stereo) { 950 val = (oreg >> reg.rchan_shift) & reg.mask; 951 if (reg.invert) 952 val = reg.mask - val; 953 ucontrol->value.integer.value[1] = val; 954 } 955 dev_dbg(chip->card->dev, 956 "get: %02x is %04x -> vol %02lx|%02lx (shift %02d|%02d, mask %02x, inv. %d, stereo %d)\n", 957 reg.reg, oreg, 958 ucontrol->value.integer.value[0], ucontrol->value.integer.value[1], 959 reg.lchan_shift, reg.rchan_shift, reg.mask, reg.invert, reg.stereo); 960 return 0; 961 } 962 963 static int 964 snd_azf3328_put_mixer(struct snd_kcontrol *kcontrol, 965 struct snd_ctl_elem_value *ucontrol) 966 { 967 struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol); 968 struct azf3328_mixer_reg reg; 969 u16 oreg, nreg, val; 970 971 snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); 972 oreg = snd_azf3328_mixer_inw(chip, reg.reg); 973 val = ucontrol->value.integer.value[0] & reg.mask; 974 if (reg.invert) 975 val = reg.mask - val; 976 nreg = oreg & ~(reg.mask << reg.lchan_shift); 977 nreg |= (val << reg.lchan_shift); 978 if (reg.stereo) { 979 val = ucontrol->value.integer.value[1] & reg.mask; 980 if (reg.invert) 981 val = reg.mask - val; 982 nreg &= ~(reg.mask << reg.rchan_shift); 983 nreg |= (val << reg.rchan_shift); 984 } 985 if (reg.mask >= 0x07) /* it's a volume control, so better take care */ 986 snd_azf3328_mixer_write_volume_gradually( 987 chip, reg.reg, nreg >> 8, nreg & 0xff, 988 /* just set both channels, doesn't matter */ 989 SET_CHAN_LEFT|SET_CHAN_RIGHT, 990 0); 991 else 992 snd_azf3328_mixer_outw(chip, reg.reg, nreg); 993 994 dev_dbg(chip->card->dev, 995 "put: %02x to %02lx|%02lx, oreg %04x; shift %02d|%02d -> nreg %04x; after: %04x\n", 996 reg.reg, ucontrol->value.integer.value[0], ucontrol->value.integer.value[1], 997 oreg, reg.lchan_shift, reg.rchan_shift, 998 nreg, snd_azf3328_mixer_inw(chip, reg.reg)); 999 return (nreg != oreg); 1000 } 1001 1002 static int 1003 snd_azf3328_info_mixer_enum(struct snd_kcontrol *kcontrol, 1004 struct snd_ctl_elem_info *uinfo) 1005 { 1006 static const char * const texts1[] = { 1007 "Mic1", "Mic2" 1008 }; 1009 static const char * const texts2[] = { 1010 "Mix", "Mic" 1011 }; 1012 static const char * const texts3[] = { 1013 "Mic", "CD", "Video", "Aux", 1014 "Line", "Mix", "Mix Mono", "Phone" 1015 }; 1016 static const char * const texts4[] = { 1017 "pre 3D", "post 3D" 1018 }; 1019 struct azf3328_mixer_reg reg; 1020 const char * const *p = NULL; 1021 1022 snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); 1023 if (reg.reg == IDX_MIXER_ADVCTL2) { 1024 switch(reg.lchan_shift) { 1025 case 8: /* modem out sel */ 1026 p = texts1; 1027 break; 1028 case 9: /* mono sel source */ 1029 p = texts2; 1030 break; 1031 case 15: /* PCM Out Path */ 1032 p = texts4; 1033 break; 1034 } 1035 } else if (reg.reg == IDX_MIXER_REC_SELECT) 1036 p = texts3; 1037 1038 return snd_ctl_enum_info(uinfo, 1039 (reg.reg == IDX_MIXER_REC_SELECT) ? 2 : 1, 1040 reg.enum_c, p); 1041 } 1042 1043 static int 1044 snd_azf3328_get_mixer_enum(struct snd_kcontrol *kcontrol, 1045 struct snd_ctl_elem_value *ucontrol) 1046 { 1047 struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol); 1048 struct azf3328_mixer_reg reg; 1049 unsigned short val; 1050 1051 snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); 1052 val = snd_azf3328_mixer_inw(chip, reg.reg); 1053 if (reg.reg == IDX_MIXER_REC_SELECT) { 1054 ucontrol->value.enumerated.item[0] = (val >> 8) & (reg.enum_c - 1); 1055 ucontrol->value.enumerated.item[1] = (val >> 0) & (reg.enum_c - 1); 1056 } else 1057 ucontrol->value.enumerated.item[0] = (val >> reg.lchan_shift) & (reg.enum_c - 1); 1058 1059 dev_dbg(chip->card->dev, 1060 "get_enum: %02x is %04x -> %d|%d (shift %02d, enum_c %d)\n", 1061 reg.reg, val, ucontrol->value.enumerated.item[0], ucontrol->value.enumerated.item[1], 1062 reg.lchan_shift, reg.enum_c); 1063 return 0; 1064 } 1065 1066 static int 1067 snd_azf3328_put_mixer_enum(struct snd_kcontrol *kcontrol, 1068 struct snd_ctl_elem_value *ucontrol) 1069 { 1070 struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol); 1071 struct azf3328_mixer_reg reg; 1072 u16 oreg, nreg, val; 1073 1074 snd_azf3328_mixer_reg_decode(®, kcontrol->private_value); 1075 oreg = snd_azf3328_mixer_inw(chip, reg.reg); 1076 val = oreg; 1077 if (reg.reg == IDX_MIXER_REC_SELECT) { 1078 if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U || 1079 ucontrol->value.enumerated.item[1] > reg.enum_c - 1U) 1080 return -EINVAL; 1081 val = (ucontrol->value.enumerated.item[0] << 8) | 1082 (ucontrol->value.enumerated.item[1] << 0); 1083 } else { 1084 if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U) 1085 return -EINVAL; 1086 val &= ~((reg.enum_c - 1) << reg.lchan_shift); 1087 val |= (ucontrol->value.enumerated.item[0] << reg.lchan_shift); 1088 } 1089 snd_azf3328_mixer_outw(chip, reg.reg, val); 1090 nreg = val; 1091 1092 dev_dbg(chip->card->dev, 1093 "put_enum: %02x to %04x, oreg %04x\n", reg.reg, val, oreg); 1094 return (nreg != oreg); 1095 } 1096 1097 static struct snd_kcontrol_new snd_azf3328_mixer_controls[] = { 1098 AZF3328_MIXER_SWITCH("Master Playback Switch", IDX_MIXER_PLAY_MASTER, 15, 1), 1099 AZF3328_MIXER_VOL_STEREO("Master Playback Volume", IDX_MIXER_PLAY_MASTER, 0x1f, 1), 1100 AZF3328_MIXER_SWITCH("PCM Playback Switch", IDX_MIXER_WAVEOUT, 15, 1), 1101 AZF3328_MIXER_VOL_STEREO("PCM Playback Volume", 1102 IDX_MIXER_WAVEOUT, 0x1f, 1), 1103 AZF3328_MIXER_SWITCH("PCM 3D Bypass Playback Switch", 1104 IDX_MIXER_ADVCTL2, 7, 1), 1105 AZF3328_MIXER_SWITCH("FM Playback Switch", IDX_MIXER_FMSYNTH, 15, 1), 1106 AZF3328_MIXER_VOL_STEREO("FM Playback Volume", IDX_MIXER_FMSYNTH, 0x1f, 1), 1107 AZF3328_MIXER_SWITCH("CD Playback Switch", IDX_MIXER_CDAUDIO, 15, 1), 1108 AZF3328_MIXER_VOL_STEREO("CD Playback Volume", IDX_MIXER_CDAUDIO, 0x1f, 1), 1109 AZF3328_MIXER_SWITCH("Capture Switch", IDX_MIXER_REC_VOLUME, 15, 1), 1110 AZF3328_MIXER_VOL_STEREO("Capture Volume", IDX_MIXER_REC_VOLUME, 0x0f, 0), 1111 AZF3328_MIXER_ENUM("Capture Source", IDX_MIXER_REC_SELECT, 8, 0), 1112 AZF3328_MIXER_SWITCH("Mic Playback Switch", IDX_MIXER_MIC, 15, 1), 1113 AZF3328_MIXER_VOL_MONO("Mic Playback Volume", IDX_MIXER_MIC, 0x1f, 1), 1114 AZF3328_MIXER_SWITCH("Mic Boost (+20dB)", IDX_MIXER_MIC, 6, 0), 1115 AZF3328_MIXER_SWITCH("Line Playback Switch", IDX_MIXER_LINEIN, 15, 1), 1116 AZF3328_MIXER_VOL_STEREO("Line Playback Volume", IDX_MIXER_LINEIN, 0x1f, 1), 1117 AZF3328_MIXER_SWITCH("Beep Playback Switch", IDX_MIXER_PCBEEP, 15, 1), 1118 AZF3328_MIXER_VOL_SPECIAL("Beep Playback Volume", IDX_MIXER_PCBEEP, 0x0f, 1, 1), 1119 AZF3328_MIXER_SWITCH("Video Playback Switch", IDX_MIXER_VIDEO, 15, 1), 1120 AZF3328_MIXER_VOL_STEREO("Video Playback Volume", IDX_MIXER_VIDEO, 0x1f, 1), 1121 AZF3328_MIXER_SWITCH("Aux Playback Switch", IDX_MIXER_AUX, 15, 1), 1122 AZF3328_MIXER_VOL_STEREO("Aux Playback Volume", IDX_MIXER_AUX, 0x1f, 1), 1123 AZF3328_MIXER_SWITCH("Modem Playback Switch", IDX_MIXER_MODEMOUT, 15, 1), 1124 AZF3328_MIXER_VOL_MONO("Modem Playback Volume", IDX_MIXER_MODEMOUT, 0x1f, 1), 1125 AZF3328_MIXER_SWITCH("Modem Capture Switch", IDX_MIXER_MODEMIN, 15, 1), 1126 AZF3328_MIXER_VOL_MONO("Modem Capture Volume", IDX_MIXER_MODEMIN, 0x1f, 1), 1127 AZF3328_MIXER_ENUM("Mic Select", IDX_MIXER_ADVCTL2, 2, 8), 1128 AZF3328_MIXER_ENUM("Mono Output Select", IDX_MIXER_ADVCTL2, 2, 9), 1129 AZF3328_MIXER_ENUM("PCM Output Route", IDX_MIXER_ADVCTL2, 2, 15), /* PCM Out Path, place in front since it controls *both* 3D and Bass/Treble! */ 1130 AZF3328_MIXER_VOL_SPECIAL("Tone Control - Treble", IDX_MIXER_BASSTREBLE, 0x07, 1, 0), 1131 AZF3328_MIXER_VOL_SPECIAL("Tone Control - Bass", IDX_MIXER_BASSTREBLE, 0x07, 9, 0), 1132 AZF3328_MIXER_SWITCH("3D Control - Switch", IDX_MIXER_ADVCTL2, 13, 0), 1133 AZF3328_MIXER_VOL_SPECIAL("3D Control - Width", IDX_MIXER_ADVCTL1, 0x07, 1, 0), /* "3D Width" */ 1134 AZF3328_MIXER_VOL_SPECIAL("3D Control - Depth", IDX_MIXER_ADVCTL1, 0x03, 8, 0), /* "Hifi 3D" */ 1135 #if MIXER_TESTING 1136 AZF3328_MIXER_SWITCH("0", IDX_MIXER_ADVCTL2, 0, 0), 1137 AZF3328_MIXER_SWITCH("1", IDX_MIXER_ADVCTL2, 1, 0), 1138 AZF3328_MIXER_SWITCH("2", IDX_MIXER_ADVCTL2, 2, 0), 1139 AZF3328_MIXER_SWITCH("3", IDX_MIXER_ADVCTL2, 3, 0), 1140 AZF3328_MIXER_SWITCH("4", IDX_MIXER_ADVCTL2, 4, 0), 1141 AZF3328_MIXER_SWITCH("5", IDX_MIXER_ADVCTL2, 5, 0), 1142 AZF3328_MIXER_SWITCH("6", IDX_MIXER_ADVCTL2, 6, 0), 1143 AZF3328_MIXER_SWITCH("7", IDX_MIXER_ADVCTL2, 7, 0), 1144 AZF3328_MIXER_SWITCH("8", IDX_MIXER_ADVCTL2, 8, 0), 1145 AZF3328_MIXER_SWITCH("9", IDX_MIXER_ADVCTL2, 9, 0), 1146 AZF3328_MIXER_SWITCH("10", IDX_MIXER_ADVCTL2, 10, 0), 1147 AZF3328_MIXER_SWITCH("11", IDX_MIXER_ADVCTL2, 11, 0), 1148 AZF3328_MIXER_SWITCH("12", IDX_MIXER_ADVCTL2, 12, 0), 1149 AZF3328_MIXER_SWITCH("13", IDX_MIXER_ADVCTL2, 13, 0), 1150 AZF3328_MIXER_SWITCH("14", IDX_MIXER_ADVCTL2, 14, 0), 1151 AZF3328_MIXER_SWITCH("15", IDX_MIXER_ADVCTL2, 15, 0), 1152 #endif 1153 }; 1154 1155 static u16 snd_azf3328_init_values[][2] = { 1156 { IDX_MIXER_PLAY_MASTER, MIXER_MUTE_MASK|0x1f1f }, 1157 { IDX_MIXER_MODEMOUT, MIXER_MUTE_MASK|0x1f1f }, 1158 { IDX_MIXER_BASSTREBLE, 0x0000 }, 1159 { IDX_MIXER_PCBEEP, MIXER_MUTE_MASK|0x1f1f }, 1160 { IDX_MIXER_MODEMIN, MIXER_MUTE_MASK|0x1f1f }, 1161 { IDX_MIXER_MIC, MIXER_MUTE_MASK|0x001f }, 1162 { IDX_MIXER_LINEIN, MIXER_MUTE_MASK|0x1f1f }, 1163 { IDX_MIXER_CDAUDIO, MIXER_MUTE_MASK|0x1f1f }, 1164 { IDX_MIXER_VIDEO, MIXER_MUTE_MASK|0x1f1f }, 1165 { IDX_MIXER_AUX, MIXER_MUTE_MASK|0x1f1f }, 1166 { IDX_MIXER_WAVEOUT, MIXER_MUTE_MASK|0x1f1f }, 1167 { IDX_MIXER_FMSYNTH, MIXER_MUTE_MASK|0x1f1f }, 1168 { IDX_MIXER_REC_VOLUME, MIXER_MUTE_MASK|0x0707 }, 1169 }; 1170 1171 static int 1172 snd_azf3328_mixer_new(struct snd_azf3328 *chip) 1173 { 1174 struct snd_card *card; 1175 const struct snd_kcontrol_new *sw; 1176 unsigned int idx; 1177 int err; 1178 1179 if (snd_BUG_ON(!chip || !chip->card)) 1180 return -EINVAL; 1181 1182 card = chip->card; 1183 1184 /* mixer reset */ 1185 snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000); 1186 1187 /* mute and zero volume channels */ 1188 for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_init_values); ++idx) { 1189 snd_azf3328_mixer_outw(chip, 1190 snd_azf3328_init_values[idx][0], 1191 snd_azf3328_init_values[idx][1]); 1192 } 1193 1194 /* add mixer controls */ 1195 sw = snd_azf3328_mixer_controls; 1196 for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_mixer_controls); 1197 ++idx, ++sw) { 1198 if ((err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip))) < 0) 1199 return err; 1200 } 1201 snd_component_add(card, "AZF3328 mixer"); 1202 strcpy(card->mixername, "AZF3328 mixer"); 1203 1204 return 0; 1205 } 1206 #endif /* AZF_USE_AC97_LAYER */ 1207 1208 static int 1209 snd_azf3328_hw_params(struct snd_pcm_substream *substream, 1210 struct snd_pcm_hw_params *hw_params) 1211 { 1212 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 1213 } 1214 1215 static int 1216 snd_azf3328_hw_free(struct snd_pcm_substream *substream) 1217 { 1218 snd_pcm_lib_free_pages(substream); 1219 return 0; 1220 } 1221 1222 static void 1223 snd_azf3328_codec_setfmt(struct snd_azf3328_codec_data *codec, 1224 enum azf_freq_t bitrate, 1225 unsigned int format_width, 1226 unsigned int channels 1227 ) 1228 { 1229 unsigned long flags; 1230 u16 val = 0xff00; 1231 u8 freq = 0; 1232 1233 switch (bitrate) { 1234 case AZF_FREQ_4000: freq = SOUNDFORMAT_FREQ_SUSPECTED_4000; break; 1235 case AZF_FREQ_4800: freq = SOUNDFORMAT_FREQ_SUSPECTED_4800; break; 1236 case AZF_FREQ_5512: 1237 /* the AZF3328 names it "5510" for some strange reason */ 1238 freq = SOUNDFORMAT_FREQ_5510; break; 1239 case AZF_FREQ_6620: freq = SOUNDFORMAT_FREQ_6620; break; 1240 case AZF_FREQ_8000: freq = SOUNDFORMAT_FREQ_8000; break; 1241 case AZF_FREQ_9600: freq = SOUNDFORMAT_FREQ_9600; break; 1242 case AZF_FREQ_11025: freq = SOUNDFORMAT_FREQ_11025; break; 1243 case AZF_FREQ_13240: freq = SOUNDFORMAT_FREQ_SUSPECTED_13240; break; 1244 case AZF_FREQ_16000: freq = SOUNDFORMAT_FREQ_16000; break; 1245 case AZF_FREQ_22050: freq = SOUNDFORMAT_FREQ_22050; break; 1246 case AZF_FREQ_32000: freq = SOUNDFORMAT_FREQ_32000; break; 1247 default: 1248 snd_printk(KERN_WARNING "unknown bitrate %d, assuming 44.1kHz!\n", bitrate); 1249 /* fall-through */ 1250 case AZF_FREQ_44100: freq = SOUNDFORMAT_FREQ_44100; break; 1251 case AZF_FREQ_48000: freq = SOUNDFORMAT_FREQ_48000; break; 1252 case AZF_FREQ_66200: freq = SOUNDFORMAT_FREQ_SUSPECTED_66200; break; 1253 } 1254 /* val = 0xff07; 3m27.993s (65301Hz; -> 64000Hz???) hmm, 66120, 65967, 66123 */ 1255 /* val = 0xff09; 17m15.098s (13123,478Hz; -> 12000Hz???) hmm, 13237.2Hz? */ 1256 /* val = 0xff0a; 47m30.599s (4764,891Hz; -> 4800Hz???) yup, 4803Hz */ 1257 /* val = 0xff0c; 57m0.510s (4010,263Hz; -> 4000Hz???) yup, 4003Hz */ 1258 /* val = 0xff05; 5m11.556s (... -> 44100Hz) */ 1259 /* val = 0xff03; 10m21.529s (21872,463Hz; -> 22050Hz???) */ 1260 /* val = 0xff0f; 20m41.883s (10937,993Hz; -> 11025Hz???) */ 1261 /* val = 0xff0d; 41m23.135s (5523,600Hz; -> 5512Hz???) */ 1262 /* val = 0xff0e; 28m30.777s (8017Hz; -> 8000Hz???) */ 1263 1264 val |= freq; 1265 1266 if (channels == 2) 1267 val |= SOUNDFORMAT_FLAG_2CHANNELS; 1268 1269 if (format_width == 16) 1270 val |= SOUNDFORMAT_FLAG_16BIT; 1271 1272 spin_lock_irqsave(codec->lock, flags); 1273 1274 /* set bitrate/format */ 1275 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_SOUNDFORMAT, val); 1276 1277 /* changing the bitrate/format settings switches off the 1278 * audio output with an annoying click in case of 8/16bit format change 1279 * (maybe shutting down DAC/ADC?), thus immediately 1280 * do some tweaking to reenable it and get rid of the clicking 1281 * (FIXME: yes, it works, but what exactly am I doing here?? :) 1282 * FIXME: does this have some side effects for full-duplex 1283 * or other dramatic side effects? */ 1284 /* do it for non-capture codecs only */ 1285 if (codec->type != AZF_CODEC_CAPTURE) 1286 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1287 snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS) | 1288 DMA_RUN_SOMETHING1 | 1289 DMA_RUN_SOMETHING2 | 1290 SOMETHING_ALMOST_ALWAYS_SET | 1291 DMA_EPILOGUE_SOMETHING | 1292 DMA_SOMETHING_ELSE 1293 ); 1294 1295 spin_unlock_irqrestore(codec->lock, flags); 1296 } 1297 1298 static inline void 1299 snd_azf3328_codec_setfmt_lowpower(struct snd_azf3328_codec_data *codec 1300 ) 1301 { 1302 /* choose lowest frequency for low power consumption. 1303 * While this will cause louder noise due to rather coarse frequency, 1304 * it should never matter since output should always 1305 * get disabled properly when idle anyway. */ 1306 snd_azf3328_codec_setfmt(codec, AZF_FREQ_4000, 8, 1); 1307 } 1308 1309 static void 1310 snd_azf3328_ctrl_reg_6AH_update(struct snd_azf3328 *chip, 1311 unsigned bitmask, 1312 bool enable 1313 ) 1314 { 1315 bool do_mask = !enable; 1316 if (do_mask) 1317 chip->shadow_reg_ctrl_6AH |= bitmask; 1318 else 1319 chip->shadow_reg_ctrl_6AH &= ~bitmask; 1320 dev_dbg(chip->card->dev, 1321 "6AH_update mask 0x%04x do_mask %d: val 0x%04x\n", 1322 bitmask, do_mask, chip->shadow_reg_ctrl_6AH); 1323 snd_azf3328_ctrl_outw(chip, IDX_IO_6AH, chip->shadow_reg_ctrl_6AH); 1324 } 1325 1326 static inline void 1327 snd_azf3328_ctrl_enable_codecs(struct snd_azf3328 *chip, bool enable) 1328 { 1329 dev_dbg(chip->card->dev, "codec_enable %d\n", enable); 1330 /* no idea what exactly is being done here, but I strongly assume it's 1331 * PM related */ 1332 snd_azf3328_ctrl_reg_6AH_update( 1333 chip, IO_6A_PAUSE_PLAYBACK_BIT8, enable 1334 ); 1335 } 1336 1337 static void 1338 snd_azf3328_ctrl_codec_activity(struct snd_azf3328 *chip, 1339 enum snd_azf3328_codec_type codec_type, 1340 bool enable 1341 ) 1342 { 1343 struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type]; 1344 bool need_change = (codec->running != enable); 1345 1346 dev_dbg(chip->card->dev, 1347 "codec_activity: %s codec, enable %d, need_change %d\n", 1348 codec->name, enable, need_change 1349 ); 1350 if (need_change) { 1351 static const struct { 1352 enum snd_azf3328_codec_type other1; 1353 enum snd_azf3328_codec_type other2; 1354 } peer_codecs[3] = 1355 { { AZF_CODEC_CAPTURE, AZF_CODEC_I2S_OUT }, 1356 { AZF_CODEC_PLAYBACK, AZF_CODEC_I2S_OUT }, 1357 { AZF_CODEC_PLAYBACK, AZF_CODEC_CAPTURE } }; 1358 bool call_function; 1359 1360 if (enable) 1361 /* if enable codec, call enable_codecs func 1362 to enable codec supply... */ 1363 call_function = 1; 1364 else { 1365 /* ...otherwise call enable_codecs func 1366 (which globally shuts down operation of codecs) 1367 only in case the other codecs are currently 1368 not active either! */ 1369 call_function = 1370 ((!chip->codecs[peer_codecs[codec_type].other1] 1371 .running) 1372 && (!chip->codecs[peer_codecs[codec_type].other2] 1373 .running)); 1374 } 1375 if (call_function) 1376 snd_azf3328_ctrl_enable_codecs(chip, enable); 1377 1378 /* ...and adjust clock, too 1379 * (reduce noise and power consumption) */ 1380 if (!enable) 1381 snd_azf3328_codec_setfmt_lowpower(codec); 1382 codec->running = enable; 1383 } 1384 } 1385 1386 static void 1387 snd_azf3328_codec_setdmaa(struct snd_azf3328 *chip, 1388 struct snd_azf3328_codec_data *codec, 1389 unsigned long addr, 1390 unsigned int period_bytes, 1391 unsigned int buffer_bytes 1392 ) 1393 { 1394 WARN_ONCE(period_bytes & 1, "odd period length!?\n"); 1395 WARN_ONCE(buffer_bytes != 2 * period_bytes, 1396 "missed our input expectations! %u vs. %u\n", 1397 buffer_bytes, period_bytes); 1398 if (!codec->running) { 1399 /* AZF3328 uses a two buffer pointer DMA transfer approach */ 1400 1401 unsigned long flags; 1402 1403 /* width 32bit (prevent overflow): */ 1404 u32 area_length; 1405 struct codec_setup_io { 1406 u32 dma_start_1; 1407 u32 dma_start_2; 1408 u32 dma_lengths; 1409 } __attribute__((packed)) setup_io; 1410 1411 area_length = buffer_bytes/2; 1412 1413 setup_io.dma_start_1 = addr; 1414 setup_io.dma_start_2 = addr+area_length; 1415 1416 dev_dbg(chip->card->dev, 1417 "setdma: buffers %08x[%u] / %08x[%u], %u, %u\n", 1418 setup_io.dma_start_1, area_length, 1419 setup_io.dma_start_2, area_length, 1420 period_bytes, buffer_bytes); 1421 1422 /* Hmm, are we really supposed to decrement this by 1?? 1423 Most definitely certainly not: configuring full length does 1424 work properly (i.e. likely better), and BTW we 1425 violated possibly differing frame sizes with this... 1426 1427 area_length--; |* max. index *| 1428 */ 1429 1430 /* build combined I/O buffer length word */ 1431 setup_io.dma_lengths = (area_length << 16) | (area_length); 1432 1433 spin_lock_irqsave(codec->lock, flags); 1434 snd_azf3328_codec_outl_multi( 1435 codec, IDX_IO_CODEC_DMA_START_1, &setup_io, 3 1436 ); 1437 spin_unlock_irqrestore(codec->lock, flags); 1438 } 1439 } 1440 1441 static int 1442 snd_azf3328_pcm_prepare(struct snd_pcm_substream *substream) 1443 { 1444 struct snd_pcm_runtime *runtime = substream->runtime; 1445 struct snd_azf3328_codec_data *codec = runtime->private_data; 1446 #if 0 1447 unsigned int size = snd_pcm_lib_buffer_bytes(substream); 1448 unsigned int count = snd_pcm_lib_period_bytes(substream); 1449 #endif 1450 1451 codec->dma_base = runtime->dma_addr; 1452 1453 #if 0 1454 snd_azf3328_codec_setfmt(codec, 1455 runtime->rate, 1456 snd_pcm_format_width(runtime->format), 1457 runtime->channels); 1458 snd_azf3328_codec_setdmaa(chip, codec, 1459 runtime->dma_addr, count, size); 1460 #endif 1461 return 0; 1462 } 1463 1464 static int 1465 snd_azf3328_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 1466 { 1467 struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); 1468 struct snd_pcm_runtime *runtime = substream->runtime; 1469 struct snd_azf3328_codec_data *codec = runtime->private_data; 1470 int result = 0; 1471 u16 flags1; 1472 bool previously_muted = false; 1473 bool is_main_mixer_playback_codec = (AZF_CODEC_PLAYBACK == codec->type); 1474 1475 switch (cmd) { 1476 case SNDRV_PCM_TRIGGER_START: 1477 dev_dbg(chip->card->dev, "START PCM %s\n", codec->name); 1478 1479 if (is_main_mixer_playback_codec) { 1480 /* mute WaveOut (avoid clicking during setup) */ 1481 previously_muted = 1482 snd_azf3328_mixer_mute_control_pcm( 1483 chip, 1 1484 ); 1485 } 1486 1487 snd_azf3328_codec_setfmt(codec, 1488 runtime->rate, 1489 snd_pcm_format_width(runtime->format), 1490 runtime->channels); 1491 1492 spin_lock(codec->lock); 1493 /* first, remember current value: */ 1494 flags1 = snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS); 1495 1496 /* stop transfer */ 1497 flags1 &= ~DMA_RESUME; 1498 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1499 1500 /* FIXME: clear interrupts or what??? */ 1501 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_IRQTYPE, 0xffff); 1502 spin_unlock(codec->lock); 1503 1504 snd_azf3328_codec_setdmaa(chip, codec, runtime->dma_addr, 1505 snd_pcm_lib_period_bytes(substream), 1506 snd_pcm_lib_buffer_bytes(substream) 1507 ); 1508 1509 spin_lock(codec->lock); 1510 #ifdef WIN9X 1511 /* FIXME: enable playback/recording??? */ 1512 flags1 |= DMA_RUN_SOMETHING1 | DMA_RUN_SOMETHING2; 1513 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1514 1515 /* start transfer again */ 1516 /* FIXME: what is this value (0x0010)??? */ 1517 flags1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING; 1518 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1519 #else /* NT4 */ 1520 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1521 0x0000); 1522 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1523 DMA_RUN_SOMETHING1); 1524 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1525 DMA_RUN_SOMETHING1 | 1526 DMA_RUN_SOMETHING2); 1527 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1528 DMA_RESUME | 1529 SOMETHING_ALMOST_ALWAYS_SET | 1530 DMA_EPILOGUE_SOMETHING | 1531 DMA_SOMETHING_ELSE); 1532 #endif 1533 spin_unlock(codec->lock); 1534 snd_azf3328_ctrl_codec_activity(chip, codec->type, 1); 1535 1536 if (is_main_mixer_playback_codec) { 1537 /* now unmute WaveOut */ 1538 if (!previously_muted) 1539 snd_azf3328_mixer_mute_control_pcm( 1540 chip, 0 1541 ); 1542 } 1543 1544 dev_dbg(chip->card->dev, "PCM STARTED %s\n", codec->name); 1545 break; 1546 case SNDRV_PCM_TRIGGER_RESUME: 1547 dev_dbg(chip->card->dev, "PCM RESUME %s\n", codec->name); 1548 /* resume codec if we were active */ 1549 spin_lock(codec->lock); 1550 if (codec->running) 1551 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1552 snd_azf3328_codec_inw( 1553 codec, IDX_IO_CODEC_DMA_FLAGS 1554 ) | DMA_RESUME 1555 ); 1556 spin_unlock(codec->lock); 1557 break; 1558 case SNDRV_PCM_TRIGGER_STOP: 1559 dev_dbg(chip->card->dev, "PCM STOP %s\n", codec->name); 1560 1561 if (is_main_mixer_playback_codec) { 1562 /* mute WaveOut (avoid clicking during setup) */ 1563 previously_muted = 1564 snd_azf3328_mixer_mute_control_pcm( 1565 chip, 1 1566 ); 1567 } 1568 1569 spin_lock(codec->lock); 1570 /* first, remember current value: */ 1571 flags1 = snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS); 1572 1573 /* stop transfer */ 1574 flags1 &= ~DMA_RESUME; 1575 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1576 1577 /* hmm, is this really required? we're resetting the same bit 1578 * immediately thereafter... */ 1579 flags1 |= DMA_RUN_SOMETHING1; 1580 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1581 1582 flags1 &= ~DMA_RUN_SOMETHING1; 1583 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1584 spin_unlock(codec->lock); 1585 snd_azf3328_ctrl_codec_activity(chip, codec->type, 0); 1586 1587 if (is_main_mixer_playback_codec) { 1588 /* now unmute WaveOut */ 1589 if (!previously_muted) 1590 snd_azf3328_mixer_mute_control_pcm( 1591 chip, 0 1592 ); 1593 } 1594 1595 dev_dbg(chip->card->dev, "PCM STOPPED %s\n", codec->name); 1596 break; 1597 case SNDRV_PCM_TRIGGER_SUSPEND: 1598 dev_dbg(chip->card->dev, "PCM SUSPEND %s\n", codec->name); 1599 /* make sure codec is stopped */ 1600 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1601 snd_azf3328_codec_inw( 1602 codec, IDX_IO_CODEC_DMA_FLAGS 1603 ) & ~DMA_RESUME 1604 ); 1605 break; 1606 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 1607 WARN(1, "FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n"); 1608 break; 1609 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 1610 WARN(1, "FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n"); 1611 break; 1612 default: 1613 WARN(1, "FIXME: unknown trigger mode!\n"); 1614 return -EINVAL; 1615 } 1616 1617 return result; 1618 } 1619 1620 static snd_pcm_uframes_t 1621 snd_azf3328_pcm_pointer(struct snd_pcm_substream *substream 1622 ) 1623 { 1624 const struct snd_azf3328_codec_data *codec = 1625 substream->runtime->private_data; 1626 unsigned long result; 1627 snd_pcm_uframes_t frmres; 1628 1629 result = snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_CURRPOS); 1630 1631 /* calculate offset */ 1632 #ifdef QUERY_HARDWARE 1633 result -= snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_START_1); 1634 #else 1635 result -= codec->dma_base; 1636 #endif 1637 frmres = bytes_to_frames( substream->runtime, result); 1638 dev_dbg(substream->pcm->card->dev, "%08li %s @ 0x%8lx, frames %8ld\n", 1639 jiffies, codec->name, result, frmres); 1640 return frmres; 1641 } 1642 1643 /******************************************************************/ 1644 1645 #ifdef SUPPORT_GAMEPORT 1646 static inline void 1647 snd_azf3328_gameport_irq_enable(struct snd_azf3328 *chip, 1648 bool enable 1649 ) 1650 { 1651 snd_azf3328_io_reg_setb( 1652 chip->game_io+IDX_GAME_HWCONFIG, 1653 GAME_HWCFG_IRQ_ENABLE, 1654 enable 1655 ); 1656 } 1657 1658 static inline void 1659 snd_azf3328_gameport_legacy_address_enable(struct snd_azf3328 *chip, 1660 bool enable 1661 ) 1662 { 1663 snd_azf3328_io_reg_setb( 1664 chip->game_io+IDX_GAME_HWCONFIG, 1665 GAME_HWCFG_LEGACY_ADDRESS_ENABLE, 1666 enable 1667 ); 1668 } 1669 1670 static void 1671 snd_azf3328_gameport_set_counter_frequency(struct snd_azf3328 *chip, 1672 unsigned int freq_cfg 1673 ) 1674 { 1675 snd_azf3328_io_reg_setb( 1676 chip->game_io+IDX_GAME_HWCONFIG, 1677 0x02, 1678 (freq_cfg & 1) != 0 1679 ); 1680 snd_azf3328_io_reg_setb( 1681 chip->game_io+IDX_GAME_HWCONFIG, 1682 0x04, 1683 (freq_cfg & 2) != 0 1684 ); 1685 } 1686 1687 static inline void 1688 snd_azf3328_gameport_axis_circuit_enable(struct snd_azf3328 *chip, bool enable) 1689 { 1690 snd_azf3328_ctrl_reg_6AH_update( 1691 chip, IO_6A_SOMETHING2_GAMEPORT, enable 1692 ); 1693 } 1694 1695 static inline void 1696 snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip) 1697 { 1698 /* 1699 * skeleton handler only 1700 * (we do not want axis reading in interrupt handler - too much load!) 1701 */ 1702 dev_dbg(chip->card->dev, "gameport irq\n"); 1703 1704 /* this should ACK the gameport IRQ properly, hopefully. */ 1705 snd_azf3328_game_inw(chip, IDX_GAME_AXIS_VALUE); 1706 } 1707 1708 static int 1709 snd_azf3328_gameport_open(struct gameport *gameport, int mode) 1710 { 1711 struct snd_azf3328 *chip = gameport_get_port_data(gameport); 1712 int res; 1713 1714 dev_dbg(chip->card->dev, "gameport_open, mode %d\n", mode); 1715 switch (mode) { 1716 case GAMEPORT_MODE_COOKED: 1717 case GAMEPORT_MODE_RAW: 1718 res = 0; 1719 break; 1720 default: 1721 res = -1; 1722 break; 1723 } 1724 1725 snd_azf3328_gameport_set_counter_frequency(chip, 1726 GAME_HWCFG_ADC_COUNTER_FREQ_STD); 1727 snd_azf3328_gameport_axis_circuit_enable(chip, (res == 0)); 1728 1729 return res; 1730 } 1731 1732 static void 1733 snd_azf3328_gameport_close(struct gameport *gameport) 1734 { 1735 struct snd_azf3328 *chip = gameport_get_port_data(gameport); 1736 1737 dev_dbg(chip->card->dev, "gameport_close\n"); 1738 snd_azf3328_gameport_set_counter_frequency(chip, 1739 GAME_HWCFG_ADC_COUNTER_FREQ_1_200); 1740 snd_azf3328_gameport_axis_circuit_enable(chip, 0); 1741 } 1742 1743 static int 1744 snd_azf3328_gameport_cooked_read(struct gameport *gameport, 1745 int *axes, 1746 int *buttons 1747 ) 1748 { 1749 struct snd_azf3328 *chip = gameport_get_port_data(gameport); 1750 int i; 1751 u8 val; 1752 unsigned long flags; 1753 1754 if (snd_BUG_ON(!chip)) 1755 return 0; 1756 1757 spin_lock_irqsave(&chip->reg_lock, flags); 1758 val = snd_azf3328_game_inb(chip, IDX_GAME_LEGACY_COMPATIBLE); 1759 *buttons = (~(val) >> 4) & 0xf; 1760 1761 /* ok, this one is a bit dirty: cooked_read is being polled by a timer, 1762 * thus we're atomic and cannot actively wait in here 1763 * (which would be useful for us since it probably would be better 1764 * to trigger a measurement in here, then wait a short amount of 1765 * time until it's finished, then read values of _this_ measurement). 1766 * 1767 * Thus we simply resort to reading values if they're available already 1768 * and trigger the next measurement. 1769 */ 1770 1771 val = snd_azf3328_game_inb(chip, IDX_GAME_AXES_CONFIG); 1772 if (val & GAME_AXES_SAMPLING_READY) { 1773 for (i = 0; i < ARRAY_SIZE(chip->axes); ++i) { 1774 /* configure the axis to read */ 1775 val = (i << 4) | 0x0f; 1776 snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val); 1777 1778 chip->axes[i] = snd_azf3328_game_inw( 1779 chip, IDX_GAME_AXIS_VALUE 1780 ); 1781 } 1782 } 1783 1784 /* trigger next sampling of axes, to be evaluated the next time we 1785 * enter this function */ 1786 1787 /* for some very, very strange reason we cannot enable 1788 * Measurement Ready monitoring for all axes here, 1789 * at least not when only one joystick connected */ 1790 val = 0x03; /* we're able to monitor axes 1 and 2 only */ 1791 snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val); 1792 1793 snd_azf3328_game_outw(chip, IDX_GAME_AXIS_VALUE, 0xffff); 1794 spin_unlock_irqrestore(&chip->reg_lock, flags); 1795 1796 for (i = 0; i < ARRAY_SIZE(chip->axes); i++) { 1797 axes[i] = chip->axes[i]; 1798 if (axes[i] == 0xffff) 1799 axes[i] = -1; 1800 } 1801 1802 dev_dbg(chip->card->dev, "cooked_read: axes %d %d %d %d buttons %d\n", 1803 axes[0], axes[1], axes[2], axes[3], *buttons); 1804 1805 return 0; 1806 } 1807 1808 static int 1809 snd_azf3328_gameport(struct snd_azf3328 *chip, int dev) 1810 { 1811 struct gameport *gp; 1812 1813 chip->gameport = gp = gameport_allocate_port(); 1814 if (!gp) { 1815 dev_err(chip->card->dev, "cannot alloc memory for gameport\n"); 1816 return -ENOMEM; 1817 } 1818 1819 gameport_set_name(gp, "AZF3328 Gameport"); 1820 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci)); 1821 gameport_set_dev_parent(gp, &chip->pci->dev); 1822 gp->io = chip->game_io; 1823 gameport_set_port_data(gp, chip); 1824 1825 gp->open = snd_azf3328_gameport_open; 1826 gp->close = snd_azf3328_gameport_close; 1827 gp->fuzz = 16; /* seems ok */ 1828 gp->cooked_read = snd_azf3328_gameport_cooked_read; 1829 1830 /* DISABLE legacy address: we don't need it! */ 1831 snd_azf3328_gameport_legacy_address_enable(chip, 0); 1832 1833 snd_azf3328_gameport_set_counter_frequency(chip, 1834 GAME_HWCFG_ADC_COUNTER_FREQ_1_200); 1835 snd_azf3328_gameport_axis_circuit_enable(chip, 0); 1836 1837 gameport_register_port(chip->gameport); 1838 1839 return 0; 1840 } 1841 1842 static void 1843 snd_azf3328_gameport_free(struct snd_azf3328 *chip) 1844 { 1845 if (chip->gameport) { 1846 gameport_unregister_port(chip->gameport); 1847 chip->gameport = NULL; 1848 } 1849 snd_azf3328_gameport_irq_enable(chip, 0); 1850 } 1851 #else 1852 static inline int 1853 snd_azf3328_gameport(struct snd_azf3328 *chip, int dev) { return -ENOSYS; } 1854 static inline void 1855 snd_azf3328_gameport_free(struct snd_azf3328 *chip) { } 1856 static inline void 1857 snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip) 1858 { 1859 dev_warn(chip->card->dev, "huh, game port IRQ occurred!?\n"); 1860 } 1861 #endif /* SUPPORT_GAMEPORT */ 1862 1863 /******************************************************************/ 1864 1865 static inline void 1866 snd_azf3328_irq_log_unknown_type(struct snd_azf3328 *chip, u8 which) 1867 { 1868 dev_dbg(chip->card->dev, 1869 "unknown IRQ type (%x) occurred, please report!\n", 1870 which); 1871 } 1872 1873 static inline void 1874 snd_azf3328_pcm_interrupt(struct snd_azf3328 *chip, 1875 const struct snd_azf3328_codec_data *first_codec, 1876 u8 status 1877 ) 1878 { 1879 u8 which; 1880 enum snd_azf3328_codec_type codec_type; 1881 const struct snd_azf3328_codec_data *codec = first_codec; 1882 1883 for (codec_type = AZF_CODEC_PLAYBACK; 1884 codec_type <= AZF_CODEC_I2S_OUT; 1885 ++codec_type, ++codec) { 1886 1887 /* skip codec if there's no interrupt for it */ 1888 if (!(status & (1 << codec_type))) 1889 continue; 1890 1891 spin_lock(codec->lock); 1892 which = snd_azf3328_codec_inb(codec, IDX_IO_CODEC_IRQTYPE); 1893 /* ack all IRQ types immediately */ 1894 snd_azf3328_codec_outb(codec, IDX_IO_CODEC_IRQTYPE, which); 1895 spin_unlock(codec->lock); 1896 1897 if (codec->substream) { 1898 snd_pcm_period_elapsed(codec->substream); 1899 dev_dbg(chip->card->dev, "%s period done (#%x), @ %x\n", 1900 codec->name, 1901 which, 1902 snd_azf3328_codec_inl( 1903 codec, IDX_IO_CODEC_DMA_CURRPOS)); 1904 } else 1905 dev_warn(chip->card->dev, "irq handler problem!\n"); 1906 if (which & IRQ_SOMETHING) 1907 snd_azf3328_irq_log_unknown_type(chip, which); 1908 } 1909 } 1910 1911 static irqreturn_t 1912 snd_azf3328_interrupt(int irq, void *dev_id) 1913 { 1914 struct snd_azf3328 *chip = dev_id; 1915 u8 status; 1916 static unsigned long irq_count; 1917 1918 status = snd_azf3328_ctrl_inb(chip, IDX_IO_IRQSTATUS); 1919 1920 /* fast path out, to ease interrupt sharing */ 1921 if (!(status & 1922 (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_I2S_OUT 1923 |IRQ_GAMEPORT|IRQ_MPU401|IRQ_TIMER) 1924 )) 1925 return IRQ_NONE; /* must be interrupt for another device */ 1926 1927 dev_dbg(chip->card->dev, 1928 "irq_count %ld! IDX_IO_IRQSTATUS %04x\n", 1929 irq_count++ /* debug-only */, 1930 status); 1931 1932 if (status & IRQ_TIMER) { 1933 /* dev_dbg(chip->card->dev, "timer %ld\n", 1934 snd_azf3328_codec_inl(chip, IDX_IO_TIMER_VALUE) 1935 & TIMER_VALUE_MASK 1936 ); */ 1937 if (chip->timer) 1938 snd_timer_interrupt(chip->timer, chip->timer->sticks); 1939 /* ACK timer */ 1940 spin_lock(&chip->reg_lock); 1941 snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x07); 1942 spin_unlock(&chip->reg_lock); 1943 dev_dbg(chip->card->dev, "timer IRQ\n"); 1944 } 1945 1946 if (status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_I2S_OUT)) 1947 snd_azf3328_pcm_interrupt(chip, chip->codecs, status); 1948 1949 if (status & IRQ_GAMEPORT) 1950 snd_azf3328_gameport_interrupt(chip); 1951 1952 /* MPU401 has less critical IRQ requirements 1953 * than timer and playback/recording, right? */ 1954 if (status & IRQ_MPU401) { 1955 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); 1956 1957 /* hmm, do we have to ack the IRQ here somehow? 1958 * If so, then I don't know how yet... */ 1959 dev_dbg(chip->card->dev, "MPU401 IRQ\n"); 1960 } 1961 return IRQ_HANDLED; 1962 } 1963 1964 /*****************************************************************/ 1965 1966 /* as long as we think we have identical snd_pcm_hardware parameters 1967 for playback, capture and i2s out, we can use the same physical struct 1968 since the struct is simply being copied into a member. 1969 */ 1970 static const struct snd_pcm_hardware snd_azf3328_hardware = 1971 { 1972 /* FIXME!! Correct? */ 1973 .info = SNDRV_PCM_INFO_MMAP | 1974 SNDRV_PCM_INFO_INTERLEAVED | 1975 SNDRV_PCM_INFO_MMAP_VALID, 1976 .formats = SNDRV_PCM_FMTBIT_S8 | 1977 SNDRV_PCM_FMTBIT_U8 | 1978 SNDRV_PCM_FMTBIT_S16_LE | 1979 SNDRV_PCM_FMTBIT_U16_LE, 1980 .rates = SNDRV_PCM_RATE_5512 | 1981 SNDRV_PCM_RATE_8000_48000 | 1982 SNDRV_PCM_RATE_KNOT, 1983 .rate_min = AZF_FREQ_4000, 1984 .rate_max = AZF_FREQ_66200, 1985 .channels_min = 1, 1986 .channels_max = 2, 1987 .buffer_bytes_max = (64*1024), 1988 .period_bytes_min = 1024, 1989 .period_bytes_max = (32*1024), 1990 /* We simply have two DMA areas (instead of a list of descriptors 1991 such as other cards); I believe that this is a fixed hardware 1992 attribute and there isn't much driver magic to be done to expand it. 1993 Thus indicate that we have at least and at most 2 periods. */ 1994 .periods_min = 2, 1995 .periods_max = 2, 1996 /* FIXME: maybe that card actually has a FIFO? 1997 * Hmm, it seems newer revisions do have one, but we still don't know 1998 * its size... */ 1999 .fifo_size = 0, 2000 }; 2001 2002 2003 static const unsigned int snd_azf3328_fixed_rates[] = { 2004 AZF_FREQ_4000, 2005 AZF_FREQ_4800, 2006 AZF_FREQ_5512, 2007 AZF_FREQ_6620, 2008 AZF_FREQ_8000, 2009 AZF_FREQ_9600, 2010 AZF_FREQ_11025, 2011 AZF_FREQ_13240, 2012 AZF_FREQ_16000, 2013 AZF_FREQ_22050, 2014 AZF_FREQ_32000, 2015 AZF_FREQ_44100, 2016 AZF_FREQ_48000, 2017 AZF_FREQ_66200 2018 }; 2019 2020 static const struct snd_pcm_hw_constraint_list snd_azf3328_hw_constraints_rates = { 2021 .count = ARRAY_SIZE(snd_azf3328_fixed_rates), 2022 .list = snd_azf3328_fixed_rates, 2023 .mask = 0, 2024 }; 2025 2026 /*****************************************************************/ 2027 2028 static int 2029 snd_azf3328_pcm_open(struct snd_pcm_substream *substream, 2030 enum snd_azf3328_codec_type codec_type 2031 ) 2032 { 2033 struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); 2034 struct snd_pcm_runtime *runtime = substream->runtime; 2035 struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type]; 2036 2037 codec->substream = substream; 2038 2039 /* same parameters for all our codecs - at least we think so... */ 2040 runtime->hw = snd_azf3328_hardware; 2041 2042 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 2043 &snd_azf3328_hw_constraints_rates); 2044 runtime->private_data = codec; 2045 return 0; 2046 } 2047 2048 static int 2049 snd_azf3328_pcm_playback_open(struct snd_pcm_substream *substream) 2050 { 2051 return snd_azf3328_pcm_open(substream, AZF_CODEC_PLAYBACK); 2052 } 2053 2054 static int 2055 snd_azf3328_pcm_capture_open(struct snd_pcm_substream *substream) 2056 { 2057 return snd_azf3328_pcm_open(substream, AZF_CODEC_CAPTURE); 2058 } 2059 2060 static int 2061 snd_azf3328_pcm_i2s_out_open(struct snd_pcm_substream *substream) 2062 { 2063 return snd_azf3328_pcm_open(substream, AZF_CODEC_I2S_OUT); 2064 } 2065 2066 static int 2067 snd_azf3328_pcm_close(struct snd_pcm_substream *substream 2068 ) 2069 { 2070 struct snd_azf3328_codec_data *codec = 2071 substream->runtime->private_data; 2072 2073 codec->substream = NULL; 2074 return 0; 2075 } 2076 2077 /******************************************************************/ 2078 2079 static const struct snd_pcm_ops snd_azf3328_playback_ops = { 2080 .open = snd_azf3328_pcm_playback_open, 2081 .close = snd_azf3328_pcm_close, 2082 .ioctl = snd_pcm_lib_ioctl, 2083 .hw_params = snd_azf3328_hw_params, 2084 .hw_free = snd_azf3328_hw_free, 2085 .prepare = snd_azf3328_pcm_prepare, 2086 .trigger = snd_azf3328_pcm_trigger, 2087 .pointer = snd_azf3328_pcm_pointer 2088 }; 2089 2090 static const struct snd_pcm_ops snd_azf3328_capture_ops = { 2091 .open = snd_azf3328_pcm_capture_open, 2092 .close = snd_azf3328_pcm_close, 2093 .ioctl = snd_pcm_lib_ioctl, 2094 .hw_params = snd_azf3328_hw_params, 2095 .hw_free = snd_azf3328_hw_free, 2096 .prepare = snd_azf3328_pcm_prepare, 2097 .trigger = snd_azf3328_pcm_trigger, 2098 .pointer = snd_azf3328_pcm_pointer 2099 }; 2100 2101 static const struct snd_pcm_ops snd_azf3328_i2s_out_ops = { 2102 .open = snd_azf3328_pcm_i2s_out_open, 2103 .close = snd_azf3328_pcm_close, 2104 .ioctl = snd_pcm_lib_ioctl, 2105 .hw_params = snd_azf3328_hw_params, 2106 .hw_free = snd_azf3328_hw_free, 2107 .prepare = snd_azf3328_pcm_prepare, 2108 .trigger = snd_azf3328_pcm_trigger, 2109 .pointer = snd_azf3328_pcm_pointer 2110 }; 2111 2112 static int 2113 snd_azf3328_pcm(struct snd_azf3328 *chip) 2114 { 2115 /* pcm devices */ 2116 enum { AZF_PCMDEV_STD, AZF_PCMDEV_I2S_OUT, NUM_AZF_PCMDEVS }; 2117 2118 struct snd_pcm *pcm; 2119 int err; 2120 2121 err = snd_pcm_new(chip->card, "AZF3328 DSP", AZF_PCMDEV_STD, 2122 1, 1, &pcm); 2123 if (err < 0) 2124 return err; 2125 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 2126 &snd_azf3328_playback_ops); 2127 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 2128 &snd_azf3328_capture_ops); 2129 2130 pcm->private_data = chip; 2131 pcm->info_flags = 0; 2132 strcpy(pcm->name, chip->card->shortname); 2133 /* same pcm object for playback/capture (see snd_pcm_new() above) */ 2134 chip->pcm[AZF_CODEC_PLAYBACK] = pcm; 2135 chip->pcm[AZF_CODEC_CAPTURE] = pcm; 2136 2137 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 2138 &chip->pci->dev, 2139 64*1024, 64*1024); 2140 2141 err = snd_pcm_new(chip->card, "AZF3328 I2S OUT", AZF_PCMDEV_I2S_OUT, 2142 1, 0, &pcm); 2143 if (err < 0) 2144 return err; 2145 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 2146 &snd_azf3328_i2s_out_ops); 2147 2148 pcm->private_data = chip; 2149 pcm->info_flags = 0; 2150 strcpy(pcm->name, chip->card->shortname); 2151 chip->pcm[AZF_CODEC_I2S_OUT] = pcm; 2152 2153 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 2154 &chip->pci->dev, 2155 64*1024, 64*1024); 2156 2157 return 0; 2158 } 2159 2160 /******************************************************************/ 2161 2162 /*** NOTE: the physical timer resolution actually is 1024000 ticks per second 2163 *** (probably derived from main crystal via a divider of 24), 2164 *** but announcing those attributes to user-space would make programs 2165 *** configure the timer to a 1 tick value, resulting in an absolutely fatal 2166 *** timer IRQ storm. 2167 *** Thus I chose to announce a down-scaled virtual timer to the outside and 2168 *** calculate real timer countdown values internally. 2169 *** (the scale factor can be set via module parameter "seqtimer_scaling"). 2170 ***/ 2171 2172 static int 2173 snd_azf3328_timer_start(struct snd_timer *timer) 2174 { 2175 struct snd_azf3328 *chip; 2176 unsigned long flags; 2177 unsigned int delay; 2178 2179 chip = snd_timer_chip(timer); 2180 delay = ((timer->sticks * seqtimer_scaling) - 1) & TIMER_VALUE_MASK; 2181 if (delay < 49) { 2182 /* uhoh, that's not good, since user-space won't know about 2183 * this timing tweak 2184 * (we need to do it to avoid a lockup, though) */ 2185 2186 dev_dbg(chip->card->dev, "delay was too low (%d)!\n", delay); 2187 delay = 49; /* minimum time is 49 ticks */ 2188 } 2189 dev_dbg(chip->card->dev, "setting timer countdown value %d\n", delay); 2190 delay |= TIMER_COUNTDOWN_ENABLE | TIMER_IRQ_ENABLE; 2191 spin_lock_irqsave(&chip->reg_lock, flags); 2192 snd_azf3328_ctrl_outl(chip, IDX_IO_TIMER_VALUE, delay); 2193 spin_unlock_irqrestore(&chip->reg_lock, flags); 2194 return 0; 2195 } 2196 2197 static int 2198 snd_azf3328_timer_stop(struct snd_timer *timer) 2199 { 2200 struct snd_azf3328 *chip; 2201 unsigned long flags; 2202 2203 chip = snd_timer_chip(timer); 2204 spin_lock_irqsave(&chip->reg_lock, flags); 2205 /* disable timer countdown and interrupt */ 2206 /* Hmm, should we write TIMER_IRQ_ACK here? 2207 YES indeed, otherwise a rogue timer operation - which prompts 2208 ALSA(?) to call repeated stop() in vain, but NOT start() - 2209 will never end (value 0x03 is kept shown in control byte). 2210 Simply manually poking 0x04 _once_ immediately successfully stops 2211 the hardware/ALSA interrupt activity. */ 2212 snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x04); 2213 spin_unlock_irqrestore(&chip->reg_lock, flags); 2214 return 0; 2215 } 2216 2217 2218 static int 2219 snd_azf3328_timer_precise_resolution(struct snd_timer *timer, 2220 unsigned long *num, unsigned long *den) 2221 { 2222 *num = 1; 2223 *den = 1024000 / seqtimer_scaling; 2224 return 0; 2225 } 2226 2227 static struct snd_timer_hardware snd_azf3328_timer_hw = { 2228 .flags = SNDRV_TIMER_HW_AUTO, 2229 .resolution = 977, /* 1000000/1024000 = 0.9765625us */ 2230 .ticks = 1024000, /* max tick count, defined by the value register; actually it's not 1024000, but 1048576, but we don't care */ 2231 .start = snd_azf3328_timer_start, 2232 .stop = snd_azf3328_timer_stop, 2233 .precise_resolution = snd_azf3328_timer_precise_resolution, 2234 }; 2235 2236 static int 2237 snd_azf3328_timer(struct snd_azf3328 *chip, int device) 2238 { 2239 struct snd_timer *timer = NULL; 2240 struct snd_timer_id tid; 2241 int err; 2242 2243 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 2244 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 2245 tid.card = chip->card->number; 2246 tid.device = device; 2247 tid.subdevice = 0; 2248 2249 snd_azf3328_timer_hw.resolution *= seqtimer_scaling; 2250 snd_azf3328_timer_hw.ticks /= seqtimer_scaling; 2251 2252 err = snd_timer_new(chip->card, "AZF3328", &tid, &timer); 2253 if (err < 0) 2254 goto out; 2255 2256 strcpy(timer->name, "AZF3328 timer"); 2257 timer->private_data = chip; 2258 timer->hw = snd_azf3328_timer_hw; 2259 2260 chip->timer = timer; 2261 2262 snd_azf3328_timer_stop(timer); 2263 2264 err = 0; 2265 2266 out: 2267 return err; 2268 } 2269 2270 /******************************************************************/ 2271 2272 static int 2273 snd_azf3328_free(struct snd_azf3328 *chip) 2274 { 2275 if (chip->irq < 0) 2276 goto __end_hw; 2277 2278 snd_azf3328_mixer_reset(chip); 2279 2280 snd_azf3328_timer_stop(chip->timer); 2281 snd_azf3328_gameport_free(chip); 2282 2283 __end_hw: 2284 if (chip->irq >= 0) 2285 free_irq(chip->irq, chip); 2286 pci_release_regions(chip->pci); 2287 pci_disable_device(chip->pci); 2288 2289 kfree(chip); 2290 return 0; 2291 } 2292 2293 static int 2294 snd_azf3328_dev_free(struct snd_device *device) 2295 { 2296 struct snd_azf3328 *chip = device->device_data; 2297 return snd_azf3328_free(chip); 2298 } 2299 2300 #if 0 2301 /* check whether a bit can be modified */ 2302 static void 2303 snd_azf3328_test_bit(unsigned unsigned reg, int bit) 2304 { 2305 unsigned char val, valoff, valon; 2306 2307 val = inb(reg); 2308 2309 outb(val & ~(1 << bit), reg); 2310 valoff = inb(reg); 2311 2312 outb(val|(1 << bit), reg); 2313 valon = inb(reg); 2314 2315 outb(val, reg); 2316 2317 printk(KERN_DEBUG "reg %04x bit %d: %02x %02x %02x\n", 2318 reg, bit, val, valoff, valon 2319 ); 2320 } 2321 #endif 2322 2323 static inline void 2324 snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip) 2325 { 2326 u16 tmp; 2327 2328 dev_dbg(chip->card->dev, 2329 "ctrl_io 0x%lx, game_io 0x%lx, mpu_io 0x%lx, " 2330 "opl3_io 0x%lx, mixer_io 0x%lx, irq %d\n", 2331 chip->ctrl_io, chip->game_io, chip->mpu_io, 2332 chip->opl3_io, chip->mixer_io, chip->irq); 2333 2334 dev_dbg(chip->card->dev, 2335 "game %02x %02x %02x %02x %02x %02x\n", 2336 snd_azf3328_game_inb(chip, 0), 2337 snd_azf3328_game_inb(chip, 1), 2338 snd_azf3328_game_inb(chip, 2), 2339 snd_azf3328_game_inb(chip, 3), 2340 snd_azf3328_game_inb(chip, 4), 2341 snd_azf3328_game_inb(chip, 5)); 2342 2343 for (tmp = 0; tmp < 0x07; tmp += 1) 2344 dev_dbg(chip->card->dev, 2345 "mpu_io 0x%04x\n", inb(chip->mpu_io + tmp)); 2346 2347 for (tmp = 0; tmp <= 0x07; tmp += 1) 2348 dev_dbg(chip->card->dev, 2349 "0x%02x: game200 0x%04x, game208 0x%04x\n", 2350 tmp, inb(0x200 + tmp), inb(0x208 + tmp)); 2351 2352 for (tmp = 0; tmp <= 0x01; tmp += 1) 2353 dev_dbg(chip->card->dev, 2354 "0x%02x: mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, " 2355 "mpu330 0x%04x opl388 0x%04x opl38c 0x%04x\n", 2356 tmp, 2357 inb(0x300 + tmp), 2358 inb(0x310 + tmp), 2359 inb(0x320 + tmp), 2360 inb(0x330 + tmp), 2361 inb(0x388 + tmp), 2362 inb(0x38c + tmp)); 2363 2364 for (tmp = 0; tmp < AZF_IO_SIZE_CTRL; tmp += 2) 2365 dev_dbg(chip->card->dev, 2366 "ctrl 0x%02x: 0x%04x\n", 2367 tmp, snd_azf3328_ctrl_inw(chip, tmp)); 2368 2369 for (tmp = 0; tmp < AZF_IO_SIZE_MIXER; tmp += 2) 2370 dev_dbg(chip->card->dev, 2371 "mixer 0x%02x: 0x%04x\n", 2372 tmp, snd_azf3328_mixer_inw(chip, tmp)); 2373 } 2374 2375 static int 2376 snd_azf3328_create(struct snd_card *card, 2377 struct pci_dev *pci, 2378 unsigned long device_type, 2379 struct snd_azf3328 **rchip) 2380 { 2381 struct snd_azf3328 *chip; 2382 int err; 2383 static struct snd_device_ops ops = { 2384 .dev_free = snd_azf3328_dev_free, 2385 }; 2386 u8 dma_init; 2387 enum snd_azf3328_codec_type codec_type; 2388 struct snd_azf3328_codec_data *codec_setup; 2389 2390 *rchip = NULL; 2391 2392 err = pci_enable_device(pci); 2393 if (err < 0) 2394 return err; 2395 2396 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 2397 if (chip == NULL) { 2398 err = -ENOMEM; 2399 goto out_err; 2400 } 2401 spin_lock_init(&chip->reg_lock); 2402 chip->card = card; 2403 chip->pci = pci; 2404 chip->irq = -1; 2405 2406 /* check if we can restrict PCI DMA transfers to 24 bits */ 2407 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(24)) < 0 || 2408 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(24)) < 0) { 2409 dev_err(card->dev, 2410 "architecture does not support 24bit PCI busmaster DMA\n" 2411 ); 2412 err = -ENXIO; 2413 goto out_err; 2414 } 2415 2416 err = pci_request_regions(pci, "Aztech AZF3328"); 2417 if (err < 0) 2418 goto out_err; 2419 2420 chip->ctrl_io = pci_resource_start(pci, 0); 2421 chip->game_io = pci_resource_start(pci, 1); 2422 chip->mpu_io = pci_resource_start(pci, 2); 2423 chip->opl3_io = pci_resource_start(pci, 3); 2424 chip->mixer_io = pci_resource_start(pci, 4); 2425 2426 codec_setup = &chip->codecs[AZF_CODEC_PLAYBACK]; 2427 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_PLAYBACK; 2428 codec_setup->lock = &chip->reg_lock; 2429 codec_setup->type = AZF_CODEC_PLAYBACK; 2430 codec_setup->name = "PLAYBACK"; 2431 2432 codec_setup = &chip->codecs[AZF_CODEC_CAPTURE]; 2433 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_CAPTURE; 2434 codec_setup->lock = &chip->reg_lock; 2435 codec_setup->type = AZF_CODEC_CAPTURE; 2436 codec_setup->name = "CAPTURE"; 2437 2438 codec_setup = &chip->codecs[AZF_CODEC_I2S_OUT]; 2439 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_I2S_OUT; 2440 codec_setup->lock = &chip->reg_lock; 2441 codec_setup->type = AZF_CODEC_I2S_OUT; 2442 codec_setup->name = "I2S_OUT"; 2443 2444 if (request_irq(pci->irq, snd_azf3328_interrupt, 2445 IRQF_SHARED, KBUILD_MODNAME, chip)) { 2446 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 2447 err = -EBUSY; 2448 goto out_err; 2449 } 2450 chip->irq = pci->irq; 2451 pci_set_master(pci); 2452 synchronize_irq(chip->irq); 2453 2454 snd_azf3328_debug_show_ports(chip); 2455 2456 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 2457 if (err < 0) 2458 goto out_err; 2459 2460 /* create mixer interface & switches */ 2461 err = snd_azf3328_mixer_new(chip); 2462 if (err < 0) 2463 goto out_err; 2464 2465 /* standard codec init stuff */ 2466 /* default DMA init value */ 2467 dma_init = DMA_RUN_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE; 2468 2469 for (codec_type = AZF_CODEC_PLAYBACK; 2470 codec_type <= AZF_CODEC_I2S_OUT; ++codec_type) { 2471 struct snd_azf3328_codec_data *codec = 2472 &chip->codecs[codec_type]; 2473 2474 /* shutdown codecs to reduce power / noise */ 2475 /* have ...ctrl_codec_activity() act properly */ 2476 codec->running = 1; 2477 snd_azf3328_ctrl_codec_activity(chip, codec_type, 0); 2478 2479 spin_lock_irq(codec->lock); 2480 snd_azf3328_codec_outb(codec, IDX_IO_CODEC_DMA_FLAGS, 2481 dma_init); 2482 spin_unlock_irq(codec->lock); 2483 } 2484 2485 *rchip = chip; 2486 2487 err = 0; 2488 goto out; 2489 2490 out_err: 2491 if (chip) 2492 snd_azf3328_free(chip); 2493 pci_disable_device(pci); 2494 2495 out: 2496 return err; 2497 } 2498 2499 static int 2500 snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 2501 { 2502 static int dev; 2503 struct snd_card *card; 2504 struct snd_azf3328 *chip; 2505 struct snd_opl3 *opl3; 2506 int err; 2507 2508 if (dev >= SNDRV_CARDS) { 2509 err = -ENODEV; 2510 goto out; 2511 } 2512 if (!enable[dev]) { 2513 dev++; 2514 err = -ENOENT; 2515 goto out; 2516 } 2517 2518 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 2519 0, &card); 2520 if (err < 0) 2521 goto out; 2522 2523 strcpy(card->driver, "AZF3328"); 2524 strcpy(card->shortname, "Aztech AZF3328 (PCI168)"); 2525 2526 err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip); 2527 if (err < 0) 2528 goto out_err; 2529 2530 card->private_data = chip; 2531 2532 /* chose to use MPU401_HW_AZT2320 ID instead of MPU401_HW_MPU401, 2533 since our hardware ought to be similar, thus use same ID. */ 2534 err = snd_mpu401_uart_new( 2535 card, 0, 2536 MPU401_HW_AZT2320, chip->mpu_io, 2537 MPU401_INFO_INTEGRATED | MPU401_INFO_IRQ_HOOK, 2538 -1, &chip->rmidi 2539 ); 2540 if (err < 0) { 2541 dev_err(card->dev, "no MPU-401 device at 0x%lx?\n", 2542 chip->mpu_io 2543 ); 2544 goto out_err; 2545 } 2546 2547 err = snd_azf3328_timer(chip, 0); 2548 if (err < 0) 2549 goto out_err; 2550 2551 err = snd_azf3328_pcm(chip); 2552 if (err < 0) 2553 goto out_err; 2554 2555 if (snd_opl3_create(card, chip->opl3_io, chip->opl3_io+2, 2556 OPL3_HW_AUTO, 1, &opl3) < 0) { 2557 dev_err(card->dev, "no OPL3 device at 0x%lx-0x%lx?\n", 2558 chip->opl3_io, chip->opl3_io+2 2559 ); 2560 } else { 2561 /* need to use IDs 1, 2 since ID 0 is snd_azf3328_timer above */ 2562 err = snd_opl3_timer_new(opl3, 1, 2); 2563 if (err < 0) 2564 goto out_err; 2565 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); 2566 if (err < 0) 2567 goto out_err; 2568 opl3->private_data = chip; 2569 } 2570 2571 sprintf(card->longname, "%s at 0x%lx, irq %i", 2572 card->shortname, chip->ctrl_io, chip->irq); 2573 2574 err = snd_card_register(card); 2575 if (err < 0) 2576 goto out_err; 2577 2578 #ifdef MODULE 2579 dev_info(card->dev, 2580 "Sound driver for Aztech AZF3328-based soundcards such as PCI168.\n"); 2581 dev_info(card->dev, 2582 "Hardware was completely undocumented, unfortunately.\n"); 2583 dev_info(card->dev, 2584 "Feel free to contact andi AT lisas.de for bug reports etc.!\n"); 2585 dev_info(card->dev, 2586 "User-scalable sequencer timer set to %dHz (1024000Hz / %d).\n", 2587 1024000 / seqtimer_scaling, seqtimer_scaling); 2588 #endif 2589 2590 snd_azf3328_gameport(chip, dev); 2591 2592 pci_set_drvdata(pci, card); 2593 dev++; 2594 2595 err = 0; 2596 goto out; 2597 2598 out_err: 2599 dev_err(card->dev, "something failed, exiting\n"); 2600 snd_card_free(card); 2601 2602 out: 2603 return err; 2604 } 2605 2606 static void 2607 snd_azf3328_remove(struct pci_dev *pci) 2608 { 2609 snd_card_free(pci_get_drvdata(pci)); 2610 } 2611 2612 #ifdef CONFIG_PM_SLEEP 2613 static inline void 2614 snd_azf3328_suspend_regs(const struct snd_azf3328 *chip, 2615 unsigned long io_addr, unsigned count, u32 *saved_regs) 2616 { 2617 unsigned reg; 2618 2619 for (reg = 0; reg < count; ++reg) { 2620 *saved_regs = inl(io_addr); 2621 dev_dbg(chip->card->dev, "suspend: io 0x%04lx: 0x%08x\n", 2622 io_addr, *saved_regs); 2623 ++saved_regs; 2624 io_addr += sizeof(*saved_regs); 2625 } 2626 } 2627 2628 static inline void 2629 snd_azf3328_resume_regs(const struct snd_azf3328 *chip, 2630 const u32 *saved_regs, 2631 unsigned long io_addr, 2632 unsigned count 2633 ) 2634 { 2635 unsigned reg; 2636 2637 for (reg = 0; reg < count; ++reg) { 2638 outl(*saved_regs, io_addr); 2639 dev_dbg(chip->card->dev, 2640 "resume: io 0x%04lx: 0x%08x --> 0x%08x\n", 2641 io_addr, *saved_regs, inl(io_addr)); 2642 ++saved_regs; 2643 io_addr += sizeof(*saved_regs); 2644 } 2645 } 2646 2647 static inline void 2648 snd_azf3328_suspend_ac97(struct snd_azf3328 *chip) 2649 { 2650 #ifdef AZF_USE_AC97_LAYER 2651 snd_ac97_suspend(chip->ac97); 2652 #else 2653 snd_azf3328_suspend_regs(chip, chip->mixer_io, 2654 ARRAY_SIZE(chip->saved_regs_mixer), chip->saved_regs_mixer); 2655 2656 /* make sure to disable master volume etc. to prevent looping sound */ 2657 snd_azf3328_mixer_mute_control_master(chip, 1); 2658 snd_azf3328_mixer_mute_control_pcm(chip, 1); 2659 #endif /* AZF_USE_AC97_LAYER */ 2660 } 2661 2662 static inline void 2663 snd_azf3328_resume_ac97(const struct snd_azf3328 *chip) 2664 { 2665 #ifdef AZF_USE_AC97_LAYER 2666 snd_ac97_resume(chip->ac97); 2667 #else 2668 snd_azf3328_resume_regs(chip, chip->saved_regs_mixer, chip->mixer_io, 2669 ARRAY_SIZE(chip->saved_regs_mixer)); 2670 2671 /* unfortunately with 32bit transfers, IDX_MIXER_PLAY_MASTER (0x02) 2672 and IDX_MIXER_RESET (offset 0x00) get touched at the same time, 2673 resulting in a mixer reset condition persisting until _after_ 2674 master vol was restored. Thus master vol needs an extra restore. */ 2675 outw(((u16 *)chip->saved_regs_mixer)[1], chip->mixer_io + 2); 2676 #endif /* AZF_USE_AC97_LAYER */ 2677 } 2678 2679 static int 2680 snd_azf3328_suspend(struct device *dev) 2681 { 2682 struct snd_card *card = dev_get_drvdata(dev); 2683 struct snd_azf3328 *chip = card->private_data; 2684 u16 *saved_regs_ctrl_u16; 2685 2686 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 2687 2688 snd_azf3328_suspend_ac97(chip); 2689 2690 snd_azf3328_suspend_regs(chip, chip->ctrl_io, 2691 ARRAY_SIZE(chip->saved_regs_ctrl), chip->saved_regs_ctrl); 2692 2693 /* manually store the one currently relevant write-only reg, too */ 2694 saved_regs_ctrl_u16 = (u16 *)chip->saved_regs_ctrl; 2695 saved_regs_ctrl_u16[IDX_IO_6AH / 2] = chip->shadow_reg_ctrl_6AH; 2696 2697 snd_azf3328_suspend_regs(chip, chip->game_io, 2698 ARRAY_SIZE(chip->saved_regs_game), chip->saved_regs_game); 2699 snd_azf3328_suspend_regs(chip, chip->mpu_io, 2700 ARRAY_SIZE(chip->saved_regs_mpu), chip->saved_regs_mpu); 2701 snd_azf3328_suspend_regs(chip, chip->opl3_io, 2702 ARRAY_SIZE(chip->saved_regs_opl3), chip->saved_regs_opl3); 2703 return 0; 2704 } 2705 2706 static int 2707 snd_azf3328_resume(struct device *dev) 2708 { 2709 struct snd_card *card = dev_get_drvdata(dev); 2710 const struct snd_azf3328 *chip = card->private_data; 2711 2712 snd_azf3328_resume_regs(chip, chip->saved_regs_game, chip->game_io, 2713 ARRAY_SIZE(chip->saved_regs_game)); 2714 snd_azf3328_resume_regs(chip, chip->saved_regs_mpu, chip->mpu_io, 2715 ARRAY_SIZE(chip->saved_regs_mpu)); 2716 snd_azf3328_resume_regs(chip, chip->saved_regs_opl3, chip->opl3_io, 2717 ARRAY_SIZE(chip->saved_regs_opl3)); 2718 2719 snd_azf3328_resume_ac97(chip); 2720 2721 snd_azf3328_resume_regs(chip, chip->saved_regs_ctrl, chip->ctrl_io, 2722 ARRAY_SIZE(chip->saved_regs_ctrl)); 2723 2724 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 2725 return 0; 2726 } 2727 2728 static SIMPLE_DEV_PM_OPS(snd_azf3328_pm, snd_azf3328_suspend, snd_azf3328_resume); 2729 #define SND_AZF3328_PM_OPS &snd_azf3328_pm 2730 #else 2731 #define SND_AZF3328_PM_OPS NULL 2732 #endif /* CONFIG_PM_SLEEP */ 2733 2734 static struct pci_driver azf3328_driver = { 2735 .name = KBUILD_MODNAME, 2736 .id_table = snd_azf3328_ids, 2737 .probe = snd_azf3328_probe, 2738 .remove = snd_azf3328_remove, 2739 .driver = { 2740 .pm = SND_AZF3328_PM_OPS, 2741 }, 2742 }; 2743 2744 module_pci_driver(azf3328_driver); 2745