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 196MODULE_AUTHOR("Andreas Mohr <andi AT lisas.de>"); 197MODULE_DESCRIPTION("Aztech AZF3328 (PCI168)"); 198MODULE_LICENSE("GPL"); 199MODULE_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 227static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 228module_param_array(index, int, NULL, 0444); 229MODULE_PARM_DESC(index, "Index value for AZF3328 soundcard."); 230 231static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 232module_param_array(id, charp, NULL, 0444); 233MODULE_PARM_DESC(id, "ID string for AZF3328 soundcard."); 234 235static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 236module_param_array(enable, bool, NULL, 0444); 237MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard."); 238 239static int seqtimer_scaling = 128; 240module_param(seqtimer_scaling, int, 0444); 241MODULE_PARM_DESC(seqtimer_scaling, "Set 1024000Hz sequencer timer scale factor (lockup danger!). Default 128."); 242 243enum 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 250struct 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 260struct 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 310static 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 316MODULE_DEVICE_TABLE(pci, snd_azf3328_ids); 317 318 319static int 320snd_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 337static inline void 338snd_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 346static inline u8 347snd_azf3328_codec_inb(const struct snd_azf3328_codec_data *codec, unsigned reg) 348{ 349 return inb(codec->io_base + reg); 350} 351 352static inline void 353snd_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 361static inline u16 362snd_azf3328_codec_inw(const struct snd_azf3328_codec_data *codec, unsigned reg) 363{ 364 return inw(codec->io_base + reg); 365} 366 367static inline void 368snd_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 376static inline void 377snd_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 391static inline u32 392snd_azf3328_codec_inl(const struct snd_azf3328_codec_data *codec, unsigned reg) 393{ 394 return inl(codec->io_base + reg); 395} 396 397static inline void 398snd_azf3328_ctrl_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value) 399{ 400 outb(value, chip->ctrl_io + reg); 401} 402 403static inline u8 404snd_azf3328_ctrl_inb(const struct snd_azf3328 *chip, unsigned reg) 405{ 406 return inb(chip->ctrl_io + reg); 407} 408 409static inline u16 410snd_azf3328_ctrl_inw(const struct snd_azf3328 *chip, unsigned reg) 411{ 412 return inw(chip->ctrl_io + reg); 413} 414 415static inline void 416snd_azf3328_ctrl_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) 417{ 418 outw(value, chip->ctrl_io + reg); 419} 420 421static inline void 422snd_azf3328_ctrl_outl(const struct snd_azf3328 *chip, unsigned reg, u32 value) 423{ 424 outl(value, chip->ctrl_io + reg); 425} 426 427static inline void 428snd_azf3328_game_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value) 429{ 430 outb(value, chip->game_io + reg); 431} 432 433static inline void 434snd_azf3328_game_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) 435{ 436 outw(value, chip->game_io + reg); 437} 438 439static inline u8 440snd_azf3328_game_inb(const struct snd_azf3328 *chip, unsigned reg) 441{ 442 return inb(chip->game_io + reg); 443} 444 445static inline u16 446snd_azf3328_game_inw(const struct snd_azf3328 *chip, unsigned reg) 447{ 448 return inw(chip->game_io + reg); 449} 450 451static inline void 452snd_azf3328_mixer_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value) 453{ 454 outw(value, chip->mixer_io + reg); 455} 456 457static inline u16 458snd_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 465static bool 466snd_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 481static inline bool 482snd_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 493static inline bool 494snd_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 505static inline void 506snd_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 517static inline void 518snd_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) 541static unsigned short 542snd_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 616static const unsigned short 617azf_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 632static const unsigned short 633azf_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 */ 647static const unsigned int 648azf_emulated_ac97_vendor_id = 0x415a5401; 649 650static unsigned short 651snd_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 709static void 710snd_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 755static int 756snd_azf3328_mixer_new(struct snd_azf3328 *chip) 757{ 758 struct snd_ac97_bus *bus; 759 struct snd_ac97_template ac97; 760 static const 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 */ 796static void 797snd_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 */ 853struct 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 869static 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 919static int 920snd_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 934static int 935snd_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 963static int 964snd_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 1002static int 1003snd_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 1043static int 1044snd_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 1066static int 1067snd_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 1097static const 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 1155static const 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 1171static int 1172snd_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 1208static void 1209snd_azf3328_codec_setfmt(struct snd_azf3328_codec_data *codec, 1210 enum azf_freq_t bitrate, 1211 unsigned int format_width, 1212 unsigned int channels 1213) 1214{ 1215 unsigned long flags; 1216 u16 val = 0xff00; 1217 u8 freq = 0; 1218 1219 switch (bitrate) { 1220 case AZF_FREQ_4000: freq = SOUNDFORMAT_FREQ_SUSPECTED_4000; break; 1221 case AZF_FREQ_4800: freq = SOUNDFORMAT_FREQ_SUSPECTED_4800; break; 1222 case AZF_FREQ_5512: 1223 /* the AZF3328 names it "5510" for some strange reason */ 1224 freq = SOUNDFORMAT_FREQ_5510; break; 1225 case AZF_FREQ_6620: freq = SOUNDFORMAT_FREQ_6620; break; 1226 case AZF_FREQ_8000: freq = SOUNDFORMAT_FREQ_8000; break; 1227 case AZF_FREQ_9600: freq = SOUNDFORMAT_FREQ_9600; break; 1228 case AZF_FREQ_11025: freq = SOUNDFORMAT_FREQ_11025; break; 1229 case AZF_FREQ_13240: freq = SOUNDFORMAT_FREQ_SUSPECTED_13240; break; 1230 case AZF_FREQ_16000: freq = SOUNDFORMAT_FREQ_16000; break; 1231 case AZF_FREQ_22050: freq = SOUNDFORMAT_FREQ_22050; break; 1232 case AZF_FREQ_32000: freq = SOUNDFORMAT_FREQ_32000; break; 1233 default: 1234 snd_printk(KERN_WARNING "unknown bitrate %d, assuming 44.1kHz!\n", bitrate); 1235 fallthrough; 1236 case AZF_FREQ_44100: freq = SOUNDFORMAT_FREQ_44100; break; 1237 case AZF_FREQ_48000: freq = SOUNDFORMAT_FREQ_48000; break; 1238 case AZF_FREQ_66200: freq = SOUNDFORMAT_FREQ_SUSPECTED_66200; break; 1239 } 1240 /* val = 0xff07; 3m27.993s (65301Hz; -> 64000Hz???) hmm, 66120, 65967, 66123 */ 1241 /* val = 0xff09; 17m15.098s (13123,478Hz; -> 12000Hz???) hmm, 13237.2Hz? */ 1242 /* val = 0xff0a; 47m30.599s (4764,891Hz; -> 4800Hz???) yup, 4803Hz */ 1243 /* val = 0xff0c; 57m0.510s (4010,263Hz; -> 4000Hz???) yup, 4003Hz */ 1244 /* val = 0xff05; 5m11.556s (... -> 44100Hz) */ 1245 /* val = 0xff03; 10m21.529s (21872,463Hz; -> 22050Hz???) */ 1246 /* val = 0xff0f; 20m41.883s (10937,993Hz; -> 11025Hz???) */ 1247 /* val = 0xff0d; 41m23.135s (5523,600Hz; -> 5512Hz???) */ 1248 /* val = 0xff0e; 28m30.777s (8017Hz; -> 8000Hz???) */ 1249 1250 val |= freq; 1251 1252 if (channels == 2) 1253 val |= SOUNDFORMAT_FLAG_2CHANNELS; 1254 1255 if (format_width == 16) 1256 val |= SOUNDFORMAT_FLAG_16BIT; 1257 1258 spin_lock_irqsave(codec->lock, flags); 1259 1260 /* set bitrate/format */ 1261 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_SOUNDFORMAT, val); 1262 1263 /* changing the bitrate/format settings switches off the 1264 * audio output with an annoying click in case of 8/16bit format change 1265 * (maybe shutting down DAC/ADC?), thus immediately 1266 * do some tweaking to reenable it and get rid of the clicking 1267 * (FIXME: yes, it works, but what exactly am I doing here?? :) 1268 * FIXME: does this have some side effects for full-duplex 1269 * or other dramatic side effects? */ 1270 /* do it for non-capture codecs only */ 1271 if (codec->type != AZF_CODEC_CAPTURE) 1272 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1273 snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS) | 1274 DMA_RUN_SOMETHING1 | 1275 DMA_RUN_SOMETHING2 | 1276 SOMETHING_ALMOST_ALWAYS_SET | 1277 DMA_EPILOGUE_SOMETHING | 1278 DMA_SOMETHING_ELSE 1279 ); 1280 1281 spin_unlock_irqrestore(codec->lock, flags); 1282} 1283 1284static inline void 1285snd_azf3328_codec_setfmt_lowpower(struct snd_azf3328_codec_data *codec 1286) 1287{ 1288 /* choose lowest frequency for low power consumption. 1289 * While this will cause louder noise due to rather coarse frequency, 1290 * it should never matter since output should always 1291 * get disabled properly when idle anyway. */ 1292 snd_azf3328_codec_setfmt(codec, AZF_FREQ_4000, 8, 1); 1293} 1294 1295static void 1296snd_azf3328_ctrl_reg_6AH_update(struct snd_azf3328 *chip, 1297 unsigned bitmask, 1298 bool enable 1299) 1300{ 1301 bool do_mask = !enable; 1302 if (do_mask) 1303 chip->shadow_reg_ctrl_6AH |= bitmask; 1304 else 1305 chip->shadow_reg_ctrl_6AH &= ~bitmask; 1306 dev_dbg(chip->card->dev, 1307 "6AH_update mask 0x%04x do_mask %d: val 0x%04x\n", 1308 bitmask, do_mask, chip->shadow_reg_ctrl_6AH); 1309 snd_azf3328_ctrl_outw(chip, IDX_IO_6AH, chip->shadow_reg_ctrl_6AH); 1310} 1311 1312static inline void 1313snd_azf3328_ctrl_enable_codecs(struct snd_azf3328 *chip, bool enable) 1314{ 1315 dev_dbg(chip->card->dev, "codec_enable %d\n", enable); 1316 /* no idea what exactly is being done here, but I strongly assume it's 1317 * PM related */ 1318 snd_azf3328_ctrl_reg_6AH_update( 1319 chip, IO_6A_PAUSE_PLAYBACK_BIT8, enable 1320 ); 1321} 1322 1323static void 1324snd_azf3328_ctrl_codec_activity(struct snd_azf3328 *chip, 1325 enum snd_azf3328_codec_type codec_type, 1326 bool enable 1327) 1328{ 1329 struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type]; 1330 bool need_change = (codec->running != enable); 1331 1332 dev_dbg(chip->card->dev, 1333 "codec_activity: %s codec, enable %d, need_change %d\n", 1334 codec->name, enable, need_change 1335 ); 1336 if (need_change) { 1337 static const struct { 1338 enum snd_azf3328_codec_type other1; 1339 enum snd_azf3328_codec_type other2; 1340 } peer_codecs[3] = 1341 { { AZF_CODEC_CAPTURE, AZF_CODEC_I2S_OUT }, 1342 { AZF_CODEC_PLAYBACK, AZF_CODEC_I2S_OUT }, 1343 { AZF_CODEC_PLAYBACK, AZF_CODEC_CAPTURE } }; 1344 bool call_function; 1345 1346 if (enable) 1347 /* if enable codec, call enable_codecs func 1348 to enable codec supply... */ 1349 call_function = 1; 1350 else { 1351 /* ...otherwise call enable_codecs func 1352 (which globally shuts down operation of codecs) 1353 only in case the other codecs are currently 1354 not active either! */ 1355 call_function = 1356 ((!chip->codecs[peer_codecs[codec_type].other1] 1357 .running) 1358 && (!chip->codecs[peer_codecs[codec_type].other2] 1359 .running)); 1360 } 1361 if (call_function) 1362 snd_azf3328_ctrl_enable_codecs(chip, enable); 1363 1364 /* ...and adjust clock, too 1365 * (reduce noise and power consumption) */ 1366 if (!enable) 1367 snd_azf3328_codec_setfmt_lowpower(codec); 1368 codec->running = enable; 1369 } 1370} 1371 1372static void 1373snd_azf3328_codec_setdmaa(struct snd_azf3328 *chip, 1374 struct snd_azf3328_codec_data *codec, 1375 unsigned long addr, 1376 unsigned int period_bytes, 1377 unsigned int buffer_bytes 1378) 1379{ 1380 WARN_ONCE(period_bytes & 1, "odd period length!?\n"); 1381 WARN_ONCE(buffer_bytes != 2 * period_bytes, 1382 "missed our input expectations! %u vs. %u\n", 1383 buffer_bytes, period_bytes); 1384 if (!codec->running) { 1385 /* AZF3328 uses a two buffer pointer DMA transfer approach */ 1386 1387 unsigned long flags; 1388 1389 /* width 32bit (prevent overflow): */ 1390 u32 area_length; 1391 struct codec_setup_io { 1392 u32 dma_start_1; 1393 u32 dma_start_2; 1394 u32 dma_lengths; 1395 } __attribute__((packed)) setup_io; 1396 1397 area_length = buffer_bytes/2; 1398 1399 setup_io.dma_start_1 = addr; 1400 setup_io.dma_start_2 = addr+area_length; 1401 1402 dev_dbg(chip->card->dev, 1403 "setdma: buffers %08x[%u] / %08x[%u], %u, %u\n", 1404 setup_io.dma_start_1, area_length, 1405 setup_io.dma_start_2, area_length, 1406 period_bytes, buffer_bytes); 1407 1408 /* Hmm, are we really supposed to decrement this by 1?? 1409 Most definitely certainly not: configuring full length does 1410 work properly (i.e. likely better), and BTW we 1411 violated possibly differing frame sizes with this... 1412 1413 area_length--; |* max. index *| 1414 */ 1415 1416 /* build combined I/O buffer length word */ 1417 setup_io.dma_lengths = (area_length << 16) | (area_length); 1418 1419 spin_lock_irqsave(codec->lock, flags); 1420 snd_azf3328_codec_outl_multi( 1421 codec, IDX_IO_CODEC_DMA_START_1, &setup_io, 3 1422 ); 1423 spin_unlock_irqrestore(codec->lock, flags); 1424 } 1425} 1426 1427static int 1428snd_azf3328_pcm_prepare(struct snd_pcm_substream *substream) 1429{ 1430 struct snd_pcm_runtime *runtime = substream->runtime; 1431 struct snd_azf3328_codec_data *codec = runtime->private_data; 1432#if 0 1433 unsigned int size = snd_pcm_lib_buffer_bytes(substream); 1434 unsigned int count = snd_pcm_lib_period_bytes(substream); 1435#endif 1436 1437 codec->dma_base = runtime->dma_addr; 1438 1439#if 0 1440 snd_azf3328_codec_setfmt(codec, 1441 runtime->rate, 1442 snd_pcm_format_width(runtime->format), 1443 runtime->channels); 1444 snd_azf3328_codec_setdmaa(chip, codec, 1445 runtime->dma_addr, count, size); 1446#endif 1447 return 0; 1448} 1449 1450static int 1451snd_azf3328_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 1452{ 1453 struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); 1454 struct snd_pcm_runtime *runtime = substream->runtime; 1455 struct snd_azf3328_codec_data *codec = runtime->private_data; 1456 int result = 0; 1457 u16 flags1; 1458 bool previously_muted = false; 1459 bool is_main_mixer_playback_codec = (AZF_CODEC_PLAYBACK == codec->type); 1460 1461 switch (cmd) { 1462 case SNDRV_PCM_TRIGGER_START: 1463 dev_dbg(chip->card->dev, "START PCM %s\n", codec->name); 1464 1465 if (is_main_mixer_playback_codec) { 1466 /* mute WaveOut (avoid clicking during setup) */ 1467 previously_muted = 1468 snd_azf3328_mixer_mute_control_pcm( 1469 chip, 1 1470 ); 1471 } 1472 1473 snd_azf3328_codec_setfmt(codec, 1474 runtime->rate, 1475 snd_pcm_format_width(runtime->format), 1476 runtime->channels); 1477 1478 spin_lock(codec->lock); 1479 /* first, remember current value: */ 1480 flags1 = snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS); 1481 1482 /* stop transfer */ 1483 flags1 &= ~DMA_RESUME; 1484 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1485 1486 /* FIXME: clear interrupts or what??? */ 1487 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_IRQTYPE, 0xffff); 1488 spin_unlock(codec->lock); 1489 1490 snd_azf3328_codec_setdmaa(chip, codec, runtime->dma_addr, 1491 snd_pcm_lib_period_bytes(substream), 1492 snd_pcm_lib_buffer_bytes(substream) 1493 ); 1494 1495 spin_lock(codec->lock); 1496#ifdef WIN9X 1497 /* FIXME: enable playback/recording??? */ 1498 flags1 |= DMA_RUN_SOMETHING1 | DMA_RUN_SOMETHING2; 1499 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1500 1501 /* start transfer again */ 1502 /* FIXME: what is this value (0x0010)??? */ 1503 flags1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING; 1504 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1505#else /* NT4 */ 1506 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1507 0x0000); 1508 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1509 DMA_RUN_SOMETHING1); 1510 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1511 DMA_RUN_SOMETHING1 | 1512 DMA_RUN_SOMETHING2); 1513 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1514 DMA_RESUME | 1515 SOMETHING_ALMOST_ALWAYS_SET | 1516 DMA_EPILOGUE_SOMETHING | 1517 DMA_SOMETHING_ELSE); 1518#endif 1519 spin_unlock(codec->lock); 1520 snd_azf3328_ctrl_codec_activity(chip, codec->type, 1); 1521 1522 if (is_main_mixer_playback_codec) { 1523 /* now unmute WaveOut */ 1524 if (!previously_muted) 1525 snd_azf3328_mixer_mute_control_pcm( 1526 chip, 0 1527 ); 1528 } 1529 1530 dev_dbg(chip->card->dev, "PCM STARTED %s\n", codec->name); 1531 break; 1532 case SNDRV_PCM_TRIGGER_RESUME: 1533 dev_dbg(chip->card->dev, "PCM RESUME %s\n", codec->name); 1534 /* resume codec if we were active */ 1535 spin_lock(codec->lock); 1536 if (codec->running) 1537 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1538 snd_azf3328_codec_inw( 1539 codec, IDX_IO_CODEC_DMA_FLAGS 1540 ) | DMA_RESUME 1541 ); 1542 spin_unlock(codec->lock); 1543 break; 1544 case SNDRV_PCM_TRIGGER_STOP: 1545 dev_dbg(chip->card->dev, "PCM STOP %s\n", codec->name); 1546 1547 if (is_main_mixer_playback_codec) { 1548 /* mute WaveOut (avoid clicking during setup) */ 1549 previously_muted = 1550 snd_azf3328_mixer_mute_control_pcm( 1551 chip, 1 1552 ); 1553 } 1554 1555 spin_lock(codec->lock); 1556 /* first, remember current value: */ 1557 flags1 = snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS); 1558 1559 /* stop transfer */ 1560 flags1 &= ~DMA_RESUME; 1561 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1562 1563 /* hmm, is this really required? we're resetting the same bit 1564 * immediately thereafter... */ 1565 flags1 |= DMA_RUN_SOMETHING1; 1566 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1567 1568 flags1 &= ~DMA_RUN_SOMETHING1; 1569 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1); 1570 spin_unlock(codec->lock); 1571 snd_azf3328_ctrl_codec_activity(chip, codec->type, 0); 1572 1573 if (is_main_mixer_playback_codec) { 1574 /* now unmute WaveOut */ 1575 if (!previously_muted) 1576 snd_azf3328_mixer_mute_control_pcm( 1577 chip, 0 1578 ); 1579 } 1580 1581 dev_dbg(chip->card->dev, "PCM STOPPED %s\n", codec->name); 1582 break; 1583 case SNDRV_PCM_TRIGGER_SUSPEND: 1584 dev_dbg(chip->card->dev, "PCM SUSPEND %s\n", codec->name); 1585 /* make sure codec is stopped */ 1586 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, 1587 snd_azf3328_codec_inw( 1588 codec, IDX_IO_CODEC_DMA_FLAGS 1589 ) & ~DMA_RESUME 1590 ); 1591 break; 1592 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 1593 WARN(1, "FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n"); 1594 break; 1595 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 1596 WARN(1, "FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n"); 1597 break; 1598 default: 1599 WARN(1, "FIXME: unknown trigger mode!\n"); 1600 return -EINVAL; 1601 } 1602 1603 return result; 1604} 1605 1606static snd_pcm_uframes_t 1607snd_azf3328_pcm_pointer(struct snd_pcm_substream *substream 1608) 1609{ 1610 const struct snd_azf3328_codec_data *codec = 1611 substream->runtime->private_data; 1612 unsigned long result; 1613 snd_pcm_uframes_t frmres; 1614 1615 result = snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_CURRPOS); 1616 1617 /* calculate offset */ 1618#ifdef QUERY_HARDWARE 1619 result -= snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_START_1); 1620#else 1621 result -= codec->dma_base; 1622#endif 1623 frmres = bytes_to_frames( substream->runtime, result); 1624 dev_dbg(substream->pcm->card->dev, "%08li %s @ 0x%8lx, frames %8ld\n", 1625 jiffies, codec->name, result, frmres); 1626 return frmres; 1627} 1628 1629/******************************************************************/ 1630 1631#ifdef SUPPORT_GAMEPORT 1632static inline void 1633snd_azf3328_gameport_irq_enable(struct snd_azf3328 *chip, 1634 bool enable 1635) 1636{ 1637 snd_azf3328_io_reg_setb( 1638 chip->game_io+IDX_GAME_HWCONFIG, 1639 GAME_HWCFG_IRQ_ENABLE, 1640 enable 1641 ); 1642} 1643 1644static inline void 1645snd_azf3328_gameport_legacy_address_enable(struct snd_azf3328 *chip, 1646 bool enable 1647) 1648{ 1649 snd_azf3328_io_reg_setb( 1650 chip->game_io+IDX_GAME_HWCONFIG, 1651 GAME_HWCFG_LEGACY_ADDRESS_ENABLE, 1652 enable 1653 ); 1654} 1655 1656static void 1657snd_azf3328_gameport_set_counter_frequency(struct snd_azf3328 *chip, 1658 unsigned int freq_cfg 1659) 1660{ 1661 snd_azf3328_io_reg_setb( 1662 chip->game_io+IDX_GAME_HWCONFIG, 1663 0x02, 1664 (freq_cfg & 1) != 0 1665 ); 1666 snd_azf3328_io_reg_setb( 1667 chip->game_io+IDX_GAME_HWCONFIG, 1668 0x04, 1669 (freq_cfg & 2) != 0 1670 ); 1671} 1672 1673static inline void 1674snd_azf3328_gameport_axis_circuit_enable(struct snd_azf3328 *chip, bool enable) 1675{ 1676 snd_azf3328_ctrl_reg_6AH_update( 1677 chip, IO_6A_SOMETHING2_GAMEPORT, enable 1678 ); 1679} 1680 1681static inline void 1682snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip) 1683{ 1684 /* 1685 * skeleton handler only 1686 * (we do not want axis reading in interrupt handler - too much load!) 1687 */ 1688 dev_dbg(chip->card->dev, "gameport irq\n"); 1689 1690 /* this should ACK the gameport IRQ properly, hopefully. */ 1691 snd_azf3328_game_inw(chip, IDX_GAME_AXIS_VALUE); 1692} 1693 1694static int 1695snd_azf3328_gameport_open(struct gameport *gameport, int mode) 1696{ 1697 struct snd_azf3328 *chip = gameport_get_port_data(gameport); 1698 int res; 1699 1700 dev_dbg(chip->card->dev, "gameport_open, mode %d\n", mode); 1701 switch (mode) { 1702 case GAMEPORT_MODE_COOKED: 1703 case GAMEPORT_MODE_RAW: 1704 res = 0; 1705 break; 1706 default: 1707 res = -1; 1708 break; 1709 } 1710 1711 snd_azf3328_gameport_set_counter_frequency(chip, 1712 GAME_HWCFG_ADC_COUNTER_FREQ_STD); 1713 snd_azf3328_gameport_axis_circuit_enable(chip, (res == 0)); 1714 1715 return res; 1716} 1717 1718static void 1719snd_azf3328_gameport_close(struct gameport *gameport) 1720{ 1721 struct snd_azf3328 *chip = gameport_get_port_data(gameport); 1722 1723 dev_dbg(chip->card->dev, "gameport_close\n"); 1724 snd_azf3328_gameport_set_counter_frequency(chip, 1725 GAME_HWCFG_ADC_COUNTER_FREQ_1_200); 1726 snd_azf3328_gameport_axis_circuit_enable(chip, 0); 1727} 1728 1729static int 1730snd_azf3328_gameport_cooked_read(struct gameport *gameport, 1731 int *axes, 1732 int *buttons 1733) 1734{ 1735 struct snd_azf3328 *chip = gameport_get_port_data(gameport); 1736 int i; 1737 u8 val; 1738 unsigned long flags; 1739 1740 if (snd_BUG_ON(!chip)) 1741 return 0; 1742 1743 spin_lock_irqsave(&chip->reg_lock, flags); 1744 val = snd_azf3328_game_inb(chip, IDX_GAME_LEGACY_COMPATIBLE); 1745 *buttons = (~(val) >> 4) & 0xf; 1746 1747 /* ok, this one is a bit dirty: cooked_read is being polled by a timer, 1748 * thus we're atomic and cannot actively wait in here 1749 * (which would be useful for us since it probably would be better 1750 * to trigger a measurement in here, then wait a short amount of 1751 * time until it's finished, then read values of _this_ measurement). 1752 * 1753 * Thus we simply resort to reading values if they're available already 1754 * and trigger the next measurement. 1755 */ 1756 1757 val = snd_azf3328_game_inb(chip, IDX_GAME_AXES_CONFIG); 1758 if (val & GAME_AXES_SAMPLING_READY) { 1759 for (i = 0; i < ARRAY_SIZE(chip->axes); ++i) { 1760 /* configure the axis to read */ 1761 val = (i << 4) | 0x0f; 1762 snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val); 1763 1764 chip->axes[i] = snd_azf3328_game_inw( 1765 chip, IDX_GAME_AXIS_VALUE 1766 ); 1767 } 1768 } 1769 1770 /* trigger next sampling of axes, to be evaluated the next time we 1771 * enter this function */ 1772 1773 /* for some very, very strange reason we cannot enable 1774 * Measurement Ready monitoring for all axes here, 1775 * at least not when only one joystick connected */ 1776 val = 0x03; /* we're able to monitor axes 1 and 2 only */ 1777 snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val); 1778 1779 snd_azf3328_game_outw(chip, IDX_GAME_AXIS_VALUE, 0xffff); 1780 spin_unlock_irqrestore(&chip->reg_lock, flags); 1781 1782 for (i = 0; i < ARRAY_SIZE(chip->axes); i++) { 1783 axes[i] = chip->axes[i]; 1784 if (axes[i] == 0xffff) 1785 axes[i] = -1; 1786 } 1787 1788 dev_dbg(chip->card->dev, "cooked_read: axes %d %d %d %d buttons %d\n", 1789 axes[0], axes[1], axes[2], axes[3], *buttons); 1790 1791 return 0; 1792} 1793 1794static int 1795snd_azf3328_gameport(struct snd_azf3328 *chip, int dev) 1796{ 1797 struct gameport *gp; 1798 1799 chip->gameport = gp = gameport_allocate_port(); 1800 if (!gp) { 1801 dev_err(chip->card->dev, "cannot alloc memory for gameport\n"); 1802 return -ENOMEM; 1803 } 1804 1805 gameport_set_name(gp, "AZF3328 Gameport"); 1806 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci)); 1807 gameport_set_dev_parent(gp, &chip->pci->dev); 1808 gp->io = chip->game_io; 1809 gameport_set_port_data(gp, chip); 1810 1811 gp->open = snd_azf3328_gameport_open; 1812 gp->close = snd_azf3328_gameport_close; 1813 gp->fuzz = 16; /* seems ok */ 1814 gp->cooked_read = snd_azf3328_gameport_cooked_read; 1815 1816 /* DISABLE legacy address: we don't need it! */ 1817 snd_azf3328_gameport_legacy_address_enable(chip, 0); 1818 1819 snd_azf3328_gameport_set_counter_frequency(chip, 1820 GAME_HWCFG_ADC_COUNTER_FREQ_1_200); 1821 snd_azf3328_gameport_axis_circuit_enable(chip, 0); 1822 1823 gameport_register_port(chip->gameport); 1824 1825 return 0; 1826} 1827 1828static void 1829snd_azf3328_gameport_free(struct snd_azf3328 *chip) 1830{ 1831 if (chip->gameport) { 1832 gameport_unregister_port(chip->gameport); 1833 chip->gameport = NULL; 1834 } 1835 snd_azf3328_gameport_irq_enable(chip, 0); 1836} 1837#else 1838static inline int 1839snd_azf3328_gameport(struct snd_azf3328 *chip, int dev) { return -ENOSYS; } 1840static inline void 1841snd_azf3328_gameport_free(struct snd_azf3328 *chip) { } 1842static inline void 1843snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip) 1844{ 1845 dev_warn(chip->card->dev, "huh, game port IRQ occurred!?\n"); 1846} 1847#endif /* SUPPORT_GAMEPORT */ 1848 1849/******************************************************************/ 1850 1851static inline void 1852snd_azf3328_irq_log_unknown_type(struct snd_azf3328 *chip, u8 which) 1853{ 1854 dev_dbg(chip->card->dev, 1855 "unknown IRQ type (%x) occurred, please report!\n", 1856 which); 1857} 1858 1859static inline void 1860snd_azf3328_pcm_interrupt(struct snd_azf3328 *chip, 1861 const struct snd_azf3328_codec_data *first_codec, 1862 u8 status 1863) 1864{ 1865 u8 which; 1866 enum snd_azf3328_codec_type codec_type; 1867 const struct snd_azf3328_codec_data *codec = first_codec; 1868 1869 for (codec_type = AZF_CODEC_PLAYBACK; 1870 codec_type <= AZF_CODEC_I2S_OUT; 1871 ++codec_type, ++codec) { 1872 1873 /* skip codec if there's no interrupt for it */ 1874 if (!(status & (1 << codec_type))) 1875 continue; 1876 1877 spin_lock(codec->lock); 1878 which = snd_azf3328_codec_inb(codec, IDX_IO_CODEC_IRQTYPE); 1879 /* ack all IRQ types immediately */ 1880 snd_azf3328_codec_outb(codec, IDX_IO_CODEC_IRQTYPE, which); 1881 spin_unlock(codec->lock); 1882 1883 if (codec->substream) { 1884 snd_pcm_period_elapsed(codec->substream); 1885 dev_dbg(chip->card->dev, "%s period done (#%x), @ %x\n", 1886 codec->name, 1887 which, 1888 snd_azf3328_codec_inl( 1889 codec, IDX_IO_CODEC_DMA_CURRPOS)); 1890 } else 1891 dev_warn(chip->card->dev, "irq handler problem!\n"); 1892 if (which & IRQ_SOMETHING) 1893 snd_azf3328_irq_log_unknown_type(chip, which); 1894 } 1895} 1896 1897static irqreturn_t 1898snd_azf3328_interrupt(int irq, void *dev_id) 1899{ 1900 struct snd_azf3328 *chip = dev_id; 1901 u8 status; 1902 static unsigned long irq_count; 1903 1904 status = snd_azf3328_ctrl_inb(chip, IDX_IO_IRQSTATUS); 1905 1906 /* fast path out, to ease interrupt sharing */ 1907 if (!(status & 1908 (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_I2S_OUT 1909 |IRQ_GAMEPORT|IRQ_MPU401|IRQ_TIMER) 1910 )) 1911 return IRQ_NONE; /* must be interrupt for another device */ 1912 1913 dev_dbg(chip->card->dev, 1914 "irq_count %ld! IDX_IO_IRQSTATUS %04x\n", 1915 irq_count++ /* debug-only */, 1916 status); 1917 1918 if (status & IRQ_TIMER) { 1919 /* dev_dbg(chip->card->dev, "timer %ld\n", 1920 snd_azf3328_codec_inl(chip, IDX_IO_TIMER_VALUE) 1921 & TIMER_VALUE_MASK 1922 ); */ 1923 if (chip->timer) 1924 snd_timer_interrupt(chip->timer, chip->timer->sticks); 1925 /* ACK timer */ 1926 spin_lock(&chip->reg_lock); 1927 snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x07); 1928 spin_unlock(&chip->reg_lock); 1929 dev_dbg(chip->card->dev, "timer IRQ\n"); 1930 } 1931 1932 if (status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_I2S_OUT)) 1933 snd_azf3328_pcm_interrupt(chip, chip->codecs, status); 1934 1935 if (status & IRQ_GAMEPORT) 1936 snd_azf3328_gameport_interrupt(chip); 1937 1938 /* MPU401 has less critical IRQ requirements 1939 * than timer and playback/recording, right? */ 1940 if (status & IRQ_MPU401) { 1941 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); 1942 1943 /* hmm, do we have to ack the IRQ here somehow? 1944 * If so, then I don't know how yet... */ 1945 dev_dbg(chip->card->dev, "MPU401 IRQ\n"); 1946 } 1947 return IRQ_HANDLED; 1948} 1949 1950/*****************************************************************/ 1951 1952/* as long as we think we have identical snd_pcm_hardware parameters 1953 for playback, capture and i2s out, we can use the same physical struct 1954 since the struct is simply being copied into a member. 1955*/ 1956static const struct snd_pcm_hardware snd_azf3328_hardware = 1957{ 1958 /* FIXME!! Correct? */ 1959 .info = SNDRV_PCM_INFO_MMAP | 1960 SNDRV_PCM_INFO_INTERLEAVED | 1961 SNDRV_PCM_INFO_MMAP_VALID, 1962 .formats = SNDRV_PCM_FMTBIT_S8 | 1963 SNDRV_PCM_FMTBIT_U8 | 1964 SNDRV_PCM_FMTBIT_S16_LE | 1965 SNDRV_PCM_FMTBIT_U16_LE, 1966 .rates = SNDRV_PCM_RATE_5512 | 1967 SNDRV_PCM_RATE_8000_48000 | 1968 SNDRV_PCM_RATE_KNOT, 1969 .rate_min = AZF_FREQ_4000, 1970 .rate_max = AZF_FREQ_66200, 1971 .channels_min = 1, 1972 .channels_max = 2, 1973 .buffer_bytes_max = (64*1024), 1974 .period_bytes_min = 1024, 1975 .period_bytes_max = (32*1024), 1976 /* We simply have two DMA areas (instead of a list of descriptors 1977 such as other cards); I believe that this is a fixed hardware 1978 attribute and there isn't much driver magic to be done to expand it. 1979 Thus indicate that we have at least and at most 2 periods. */ 1980 .periods_min = 2, 1981 .periods_max = 2, 1982 /* FIXME: maybe that card actually has a FIFO? 1983 * Hmm, it seems newer revisions do have one, but we still don't know 1984 * its size... */ 1985 .fifo_size = 0, 1986}; 1987 1988 1989static const unsigned int snd_azf3328_fixed_rates[] = { 1990 AZF_FREQ_4000, 1991 AZF_FREQ_4800, 1992 AZF_FREQ_5512, 1993 AZF_FREQ_6620, 1994 AZF_FREQ_8000, 1995 AZF_FREQ_9600, 1996 AZF_FREQ_11025, 1997 AZF_FREQ_13240, 1998 AZF_FREQ_16000, 1999 AZF_FREQ_22050, 2000 AZF_FREQ_32000, 2001 AZF_FREQ_44100, 2002 AZF_FREQ_48000, 2003 AZF_FREQ_66200 2004}; 2005 2006static const struct snd_pcm_hw_constraint_list snd_azf3328_hw_constraints_rates = { 2007 .count = ARRAY_SIZE(snd_azf3328_fixed_rates), 2008 .list = snd_azf3328_fixed_rates, 2009 .mask = 0, 2010}; 2011 2012/*****************************************************************/ 2013 2014static int 2015snd_azf3328_pcm_open(struct snd_pcm_substream *substream, 2016 enum snd_azf3328_codec_type codec_type 2017) 2018{ 2019 struct snd_azf3328 *chip = snd_pcm_substream_chip(substream); 2020 struct snd_pcm_runtime *runtime = substream->runtime; 2021 struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type]; 2022 2023 codec->substream = substream; 2024 2025 /* same parameters for all our codecs - at least we think so... */ 2026 runtime->hw = snd_azf3328_hardware; 2027 2028 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 2029 &snd_azf3328_hw_constraints_rates); 2030 runtime->private_data = codec; 2031 return 0; 2032} 2033 2034static int 2035snd_azf3328_pcm_playback_open(struct snd_pcm_substream *substream) 2036{ 2037 return snd_azf3328_pcm_open(substream, AZF_CODEC_PLAYBACK); 2038} 2039 2040static int 2041snd_azf3328_pcm_capture_open(struct snd_pcm_substream *substream) 2042{ 2043 return snd_azf3328_pcm_open(substream, AZF_CODEC_CAPTURE); 2044} 2045 2046static int 2047snd_azf3328_pcm_i2s_out_open(struct snd_pcm_substream *substream) 2048{ 2049 return snd_azf3328_pcm_open(substream, AZF_CODEC_I2S_OUT); 2050} 2051 2052static int 2053snd_azf3328_pcm_close(struct snd_pcm_substream *substream 2054) 2055{ 2056 struct snd_azf3328_codec_data *codec = 2057 substream->runtime->private_data; 2058 2059 codec->substream = NULL; 2060 return 0; 2061} 2062 2063/******************************************************************/ 2064 2065static const struct snd_pcm_ops snd_azf3328_playback_ops = { 2066 .open = snd_azf3328_pcm_playback_open, 2067 .close = snd_azf3328_pcm_close, 2068 .prepare = snd_azf3328_pcm_prepare, 2069 .trigger = snd_azf3328_pcm_trigger, 2070 .pointer = snd_azf3328_pcm_pointer 2071}; 2072 2073static const struct snd_pcm_ops snd_azf3328_capture_ops = { 2074 .open = snd_azf3328_pcm_capture_open, 2075 .close = snd_azf3328_pcm_close, 2076 .prepare = snd_azf3328_pcm_prepare, 2077 .trigger = snd_azf3328_pcm_trigger, 2078 .pointer = snd_azf3328_pcm_pointer 2079}; 2080 2081static const struct snd_pcm_ops snd_azf3328_i2s_out_ops = { 2082 .open = snd_azf3328_pcm_i2s_out_open, 2083 .close = snd_azf3328_pcm_close, 2084 .prepare = snd_azf3328_pcm_prepare, 2085 .trigger = snd_azf3328_pcm_trigger, 2086 .pointer = snd_azf3328_pcm_pointer 2087}; 2088 2089static int 2090snd_azf3328_pcm(struct snd_azf3328 *chip) 2091{ 2092 /* pcm devices */ 2093 enum { AZF_PCMDEV_STD, AZF_PCMDEV_I2S_OUT, NUM_AZF_PCMDEVS }; 2094 2095 struct snd_pcm *pcm; 2096 int err; 2097 2098 err = snd_pcm_new(chip->card, "AZF3328 DSP", AZF_PCMDEV_STD, 2099 1, 1, &pcm); 2100 if (err < 0) 2101 return err; 2102 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 2103 &snd_azf3328_playback_ops); 2104 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 2105 &snd_azf3328_capture_ops); 2106 2107 pcm->private_data = chip; 2108 pcm->info_flags = 0; 2109 strcpy(pcm->name, chip->card->shortname); 2110 /* same pcm object for playback/capture (see snd_pcm_new() above) */ 2111 chip->pcm[AZF_CODEC_PLAYBACK] = pcm; 2112 chip->pcm[AZF_CODEC_CAPTURE] = pcm; 2113 2114 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, 2115 64*1024, 64*1024); 2116 2117 err = snd_pcm_new(chip->card, "AZF3328 I2S OUT", AZF_PCMDEV_I2S_OUT, 2118 1, 0, &pcm); 2119 if (err < 0) 2120 return err; 2121 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 2122 &snd_azf3328_i2s_out_ops); 2123 2124 pcm->private_data = chip; 2125 pcm->info_flags = 0; 2126 strcpy(pcm->name, chip->card->shortname); 2127 chip->pcm[AZF_CODEC_I2S_OUT] = pcm; 2128 2129 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, 2130 64*1024, 64*1024); 2131 2132 return 0; 2133} 2134 2135/******************************************************************/ 2136 2137/*** NOTE: the physical timer resolution actually is 1024000 ticks per second 2138 *** (probably derived from main crystal via a divider of 24), 2139 *** but announcing those attributes to user-space would make programs 2140 *** configure the timer to a 1 tick value, resulting in an absolutely fatal 2141 *** timer IRQ storm. 2142 *** Thus I chose to announce a down-scaled virtual timer to the outside and 2143 *** calculate real timer countdown values internally. 2144 *** (the scale factor can be set via module parameter "seqtimer_scaling"). 2145 ***/ 2146 2147static int 2148snd_azf3328_timer_start(struct snd_timer *timer) 2149{ 2150 struct snd_azf3328 *chip; 2151 unsigned long flags; 2152 unsigned int delay; 2153 2154 chip = snd_timer_chip(timer); 2155 delay = ((timer->sticks * seqtimer_scaling) - 1) & TIMER_VALUE_MASK; 2156 if (delay < 49) { 2157 /* uhoh, that's not good, since user-space won't know about 2158 * this timing tweak 2159 * (we need to do it to avoid a lockup, though) */ 2160 2161 dev_dbg(chip->card->dev, "delay was too low (%d)!\n", delay); 2162 delay = 49; /* minimum time is 49 ticks */ 2163 } 2164 dev_dbg(chip->card->dev, "setting timer countdown value %d\n", delay); 2165 delay |= TIMER_COUNTDOWN_ENABLE | TIMER_IRQ_ENABLE; 2166 spin_lock_irqsave(&chip->reg_lock, flags); 2167 snd_azf3328_ctrl_outl(chip, IDX_IO_TIMER_VALUE, delay); 2168 spin_unlock_irqrestore(&chip->reg_lock, flags); 2169 return 0; 2170} 2171 2172static int 2173snd_azf3328_timer_stop(struct snd_timer *timer) 2174{ 2175 struct snd_azf3328 *chip; 2176 unsigned long flags; 2177 2178 chip = snd_timer_chip(timer); 2179 spin_lock_irqsave(&chip->reg_lock, flags); 2180 /* disable timer countdown and interrupt */ 2181 /* Hmm, should we write TIMER_IRQ_ACK here? 2182 YES indeed, otherwise a rogue timer operation - which prompts 2183 ALSA(?) to call repeated stop() in vain, but NOT start() - 2184 will never end (value 0x03 is kept shown in control byte). 2185 Simply manually poking 0x04 _once_ immediately successfully stops 2186 the hardware/ALSA interrupt activity. */ 2187 snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x04); 2188 spin_unlock_irqrestore(&chip->reg_lock, flags); 2189 return 0; 2190} 2191 2192 2193static int 2194snd_azf3328_timer_precise_resolution(struct snd_timer *timer, 2195 unsigned long *num, unsigned long *den) 2196{ 2197 *num = 1; 2198 *den = 1024000 / seqtimer_scaling; 2199 return 0; 2200} 2201 2202static struct snd_timer_hardware snd_azf3328_timer_hw = { 2203 .flags = SNDRV_TIMER_HW_AUTO, 2204 .resolution = 977, /* 1000000/1024000 = 0.9765625us */ 2205 .ticks = 1024000, /* max tick count, defined by the value register; actually it's not 1024000, but 1048576, but we don't care */ 2206 .start = snd_azf3328_timer_start, 2207 .stop = snd_azf3328_timer_stop, 2208 .precise_resolution = snd_azf3328_timer_precise_resolution, 2209}; 2210 2211static int 2212snd_azf3328_timer(struct snd_azf3328 *chip, int device) 2213{ 2214 struct snd_timer *timer = NULL; 2215 struct snd_timer_id tid; 2216 int err; 2217 2218 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 2219 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 2220 tid.card = chip->card->number; 2221 tid.device = device; 2222 tid.subdevice = 0; 2223 2224 snd_azf3328_timer_hw.resolution *= seqtimer_scaling; 2225 snd_azf3328_timer_hw.ticks /= seqtimer_scaling; 2226 2227 err = snd_timer_new(chip->card, "AZF3328", &tid, &timer); 2228 if (err < 0) 2229 goto out; 2230 2231 strcpy(timer->name, "AZF3328 timer"); 2232 timer->private_data = chip; 2233 timer->hw = snd_azf3328_timer_hw; 2234 2235 chip->timer = timer; 2236 2237 snd_azf3328_timer_stop(timer); 2238 2239 err = 0; 2240 2241out: 2242 return err; 2243} 2244 2245/******************************************************************/ 2246 2247static int 2248snd_azf3328_free(struct snd_azf3328 *chip) 2249{ 2250 if (chip->irq < 0) 2251 goto __end_hw; 2252 2253 snd_azf3328_mixer_reset(chip); 2254 2255 snd_azf3328_timer_stop(chip->timer); 2256 snd_azf3328_gameport_free(chip); 2257 2258__end_hw: 2259 if (chip->irq >= 0) 2260 free_irq(chip->irq, chip); 2261 pci_release_regions(chip->pci); 2262 pci_disable_device(chip->pci); 2263 2264 kfree(chip); 2265 return 0; 2266} 2267 2268static int 2269snd_azf3328_dev_free(struct snd_device *device) 2270{ 2271 struct snd_azf3328 *chip = device->device_data; 2272 return snd_azf3328_free(chip); 2273} 2274 2275#if 0 2276/* check whether a bit can be modified */ 2277static void 2278snd_azf3328_test_bit(unsigned unsigned reg, int bit) 2279{ 2280 unsigned char val, valoff, valon; 2281 2282 val = inb(reg); 2283 2284 outb(val & ~(1 << bit), reg); 2285 valoff = inb(reg); 2286 2287 outb(val|(1 << bit), reg); 2288 valon = inb(reg); 2289 2290 outb(val, reg); 2291 2292 printk(KERN_DEBUG "reg %04x bit %d: %02x %02x %02x\n", 2293 reg, bit, val, valoff, valon 2294 ); 2295} 2296#endif 2297 2298static inline void 2299snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip) 2300{ 2301 u16 tmp; 2302 2303 dev_dbg(chip->card->dev, 2304 "ctrl_io 0x%lx, game_io 0x%lx, mpu_io 0x%lx, " 2305 "opl3_io 0x%lx, mixer_io 0x%lx, irq %d\n", 2306 chip->ctrl_io, chip->game_io, chip->mpu_io, 2307 chip->opl3_io, chip->mixer_io, chip->irq); 2308 2309 dev_dbg(chip->card->dev, 2310 "game %02x %02x %02x %02x %02x %02x\n", 2311 snd_azf3328_game_inb(chip, 0), 2312 snd_azf3328_game_inb(chip, 1), 2313 snd_azf3328_game_inb(chip, 2), 2314 snd_azf3328_game_inb(chip, 3), 2315 snd_azf3328_game_inb(chip, 4), 2316 snd_azf3328_game_inb(chip, 5)); 2317 2318 for (tmp = 0; tmp < 0x07; tmp += 1) 2319 dev_dbg(chip->card->dev, 2320 "mpu_io 0x%04x\n", inb(chip->mpu_io + tmp)); 2321 2322 for (tmp = 0; tmp <= 0x07; tmp += 1) 2323 dev_dbg(chip->card->dev, 2324 "0x%02x: game200 0x%04x, game208 0x%04x\n", 2325 tmp, inb(0x200 + tmp), inb(0x208 + tmp)); 2326 2327 for (tmp = 0; tmp <= 0x01; tmp += 1) 2328 dev_dbg(chip->card->dev, 2329 "0x%02x: mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, " 2330 "mpu330 0x%04x opl388 0x%04x opl38c 0x%04x\n", 2331 tmp, 2332 inb(0x300 + tmp), 2333 inb(0x310 + tmp), 2334 inb(0x320 + tmp), 2335 inb(0x330 + tmp), 2336 inb(0x388 + tmp), 2337 inb(0x38c + tmp)); 2338 2339 for (tmp = 0; tmp < AZF_IO_SIZE_CTRL; tmp += 2) 2340 dev_dbg(chip->card->dev, 2341 "ctrl 0x%02x: 0x%04x\n", 2342 tmp, snd_azf3328_ctrl_inw(chip, tmp)); 2343 2344 for (tmp = 0; tmp < AZF_IO_SIZE_MIXER; tmp += 2) 2345 dev_dbg(chip->card->dev, 2346 "mixer 0x%02x: 0x%04x\n", 2347 tmp, snd_azf3328_mixer_inw(chip, tmp)); 2348} 2349 2350static int 2351snd_azf3328_create(struct snd_card *card, 2352 struct pci_dev *pci, 2353 unsigned long device_type, 2354 struct snd_azf3328 **rchip) 2355{ 2356 struct snd_azf3328 *chip; 2357 int err; 2358 static const struct snd_device_ops ops = { 2359 .dev_free = snd_azf3328_dev_free, 2360 }; 2361 u8 dma_init; 2362 enum snd_azf3328_codec_type codec_type; 2363 struct snd_azf3328_codec_data *codec_setup; 2364 2365 *rchip = NULL; 2366 2367 err = pci_enable_device(pci); 2368 if (err < 0) 2369 return err; 2370 2371 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 2372 if (chip == NULL) { 2373 err = -ENOMEM; 2374 goto out_err; 2375 } 2376 spin_lock_init(&chip->reg_lock); 2377 chip->card = card; 2378 chip->pci = pci; 2379 chip->irq = -1; 2380 2381 /* check if we can restrict PCI DMA transfers to 24 bits */ 2382 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(24)) < 0 || 2383 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(24)) < 0) { 2384 dev_err(card->dev, 2385 "architecture does not support 24bit PCI busmaster DMA\n" 2386 ); 2387 err = -ENXIO; 2388 goto out_err; 2389 } 2390 2391 err = pci_request_regions(pci, "Aztech AZF3328"); 2392 if (err < 0) 2393 goto out_err; 2394 2395 chip->ctrl_io = pci_resource_start(pci, 0); 2396 chip->game_io = pci_resource_start(pci, 1); 2397 chip->mpu_io = pci_resource_start(pci, 2); 2398 chip->opl3_io = pci_resource_start(pci, 3); 2399 chip->mixer_io = pci_resource_start(pci, 4); 2400 2401 codec_setup = &chip->codecs[AZF_CODEC_PLAYBACK]; 2402 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_PLAYBACK; 2403 codec_setup->lock = &chip->reg_lock; 2404 codec_setup->type = AZF_CODEC_PLAYBACK; 2405 codec_setup->name = "PLAYBACK"; 2406 2407 codec_setup = &chip->codecs[AZF_CODEC_CAPTURE]; 2408 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_CAPTURE; 2409 codec_setup->lock = &chip->reg_lock; 2410 codec_setup->type = AZF_CODEC_CAPTURE; 2411 codec_setup->name = "CAPTURE"; 2412 2413 codec_setup = &chip->codecs[AZF_CODEC_I2S_OUT]; 2414 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_I2S_OUT; 2415 codec_setup->lock = &chip->reg_lock; 2416 codec_setup->type = AZF_CODEC_I2S_OUT; 2417 codec_setup->name = "I2S_OUT"; 2418 2419 if (request_irq(pci->irq, snd_azf3328_interrupt, 2420 IRQF_SHARED, KBUILD_MODNAME, chip)) { 2421 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 2422 err = -EBUSY; 2423 goto out_err; 2424 } 2425 chip->irq = pci->irq; 2426 card->sync_irq = chip->irq; 2427 pci_set_master(pci); 2428 2429 snd_azf3328_debug_show_ports(chip); 2430 2431 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 2432 if (err < 0) 2433 goto out_err; 2434 2435 /* create mixer interface & switches */ 2436 err = snd_azf3328_mixer_new(chip); 2437 if (err < 0) 2438 goto out_err; 2439 2440 /* standard codec init stuff */ 2441 /* default DMA init value */ 2442 dma_init = DMA_RUN_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE; 2443 2444 for (codec_type = AZF_CODEC_PLAYBACK; 2445 codec_type <= AZF_CODEC_I2S_OUT; ++codec_type) { 2446 struct snd_azf3328_codec_data *codec = 2447 &chip->codecs[codec_type]; 2448 2449 /* shutdown codecs to reduce power / noise */ 2450 /* have ...ctrl_codec_activity() act properly */ 2451 codec->running = 1; 2452 snd_azf3328_ctrl_codec_activity(chip, codec_type, 0); 2453 2454 spin_lock_irq(codec->lock); 2455 snd_azf3328_codec_outb(codec, IDX_IO_CODEC_DMA_FLAGS, 2456 dma_init); 2457 spin_unlock_irq(codec->lock); 2458 } 2459 2460 *rchip = chip; 2461 2462 err = 0; 2463 goto out; 2464 2465out_err: 2466 if (chip) 2467 snd_azf3328_free(chip); 2468 pci_disable_device(pci); 2469 2470out: 2471 return err; 2472} 2473 2474static int 2475snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 2476{ 2477 static int dev; 2478 struct snd_card *card; 2479 struct snd_azf3328 *chip; 2480 struct snd_opl3 *opl3; 2481 int err; 2482 2483 if (dev >= SNDRV_CARDS) { 2484 err = -ENODEV; 2485 goto out; 2486 } 2487 if (!enable[dev]) { 2488 dev++; 2489 err = -ENOENT; 2490 goto out; 2491 } 2492 2493 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 2494 0, &card); 2495 if (err < 0) 2496 goto out; 2497 2498 strcpy(card->driver, "AZF3328"); 2499 strcpy(card->shortname, "Aztech AZF3328 (PCI168)"); 2500 2501 err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip); 2502 if (err < 0) 2503 goto out_err; 2504 2505 card->private_data = chip; 2506 2507 /* chose to use MPU401_HW_AZT2320 ID instead of MPU401_HW_MPU401, 2508 since our hardware ought to be similar, thus use same ID. */ 2509 err = snd_mpu401_uart_new( 2510 card, 0, 2511 MPU401_HW_AZT2320, chip->mpu_io, 2512 MPU401_INFO_INTEGRATED | MPU401_INFO_IRQ_HOOK, 2513 -1, &chip->rmidi 2514 ); 2515 if (err < 0) { 2516 dev_err(card->dev, "no MPU-401 device at 0x%lx?\n", 2517 chip->mpu_io 2518 ); 2519 goto out_err; 2520 } 2521 2522 err = snd_azf3328_timer(chip, 0); 2523 if (err < 0) 2524 goto out_err; 2525 2526 err = snd_azf3328_pcm(chip); 2527 if (err < 0) 2528 goto out_err; 2529 2530 if (snd_opl3_create(card, chip->opl3_io, chip->opl3_io+2, 2531 OPL3_HW_AUTO, 1, &opl3) < 0) { 2532 dev_err(card->dev, "no OPL3 device at 0x%lx-0x%lx?\n", 2533 chip->opl3_io, chip->opl3_io+2 2534 ); 2535 } else { 2536 /* need to use IDs 1, 2 since ID 0 is snd_azf3328_timer above */ 2537 err = snd_opl3_timer_new(opl3, 1, 2); 2538 if (err < 0) 2539 goto out_err; 2540 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); 2541 if (err < 0) 2542 goto out_err; 2543 opl3->private_data = chip; 2544 } 2545 2546 sprintf(card->longname, "%s at 0x%lx, irq %i", 2547 card->shortname, chip->ctrl_io, chip->irq); 2548 2549 err = snd_card_register(card); 2550 if (err < 0) 2551 goto out_err; 2552 2553#ifdef MODULE 2554 dev_info(card->dev, 2555 "Sound driver for Aztech AZF3328-based soundcards such as PCI168.\n"); 2556 dev_info(card->dev, 2557 "Hardware was completely undocumented, unfortunately.\n"); 2558 dev_info(card->dev, 2559 "Feel free to contact andi AT lisas.de for bug reports etc.!\n"); 2560 dev_info(card->dev, 2561 "User-scalable sequencer timer set to %dHz (1024000Hz / %d).\n", 2562 1024000 / seqtimer_scaling, seqtimer_scaling); 2563#endif 2564 2565 snd_azf3328_gameport(chip, dev); 2566 2567 pci_set_drvdata(pci, card); 2568 dev++; 2569 2570 err = 0; 2571 goto out; 2572 2573out_err: 2574 dev_err(card->dev, "something failed, exiting\n"); 2575 snd_card_free(card); 2576 2577out: 2578 return err; 2579} 2580 2581static void 2582snd_azf3328_remove(struct pci_dev *pci) 2583{ 2584 snd_card_free(pci_get_drvdata(pci)); 2585} 2586 2587#ifdef CONFIG_PM_SLEEP 2588static inline void 2589snd_azf3328_suspend_regs(const struct snd_azf3328 *chip, 2590 unsigned long io_addr, unsigned count, u32 *saved_regs) 2591{ 2592 unsigned reg; 2593 2594 for (reg = 0; reg < count; ++reg) { 2595 *saved_regs = inl(io_addr); 2596 dev_dbg(chip->card->dev, "suspend: io 0x%04lx: 0x%08x\n", 2597 io_addr, *saved_regs); 2598 ++saved_regs; 2599 io_addr += sizeof(*saved_regs); 2600 } 2601} 2602 2603static inline void 2604snd_azf3328_resume_regs(const struct snd_azf3328 *chip, 2605 const u32 *saved_regs, 2606 unsigned long io_addr, 2607 unsigned count 2608) 2609{ 2610 unsigned reg; 2611 2612 for (reg = 0; reg < count; ++reg) { 2613 outl(*saved_regs, io_addr); 2614 dev_dbg(chip->card->dev, 2615 "resume: io 0x%04lx: 0x%08x --> 0x%08x\n", 2616 io_addr, *saved_regs, inl(io_addr)); 2617 ++saved_regs; 2618 io_addr += sizeof(*saved_regs); 2619 } 2620} 2621 2622static inline void 2623snd_azf3328_suspend_ac97(struct snd_azf3328 *chip) 2624{ 2625#ifdef AZF_USE_AC97_LAYER 2626 snd_ac97_suspend(chip->ac97); 2627#else 2628 snd_azf3328_suspend_regs(chip, chip->mixer_io, 2629 ARRAY_SIZE(chip->saved_regs_mixer), chip->saved_regs_mixer); 2630 2631 /* make sure to disable master volume etc. to prevent looping sound */ 2632 snd_azf3328_mixer_mute_control_master(chip, 1); 2633 snd_azf3328_mixer_mute_control_pcm(chip, 1); 2634#endif /* AZF_USE_AC97_LAYER */ 2635} 2636 2637static inline void 2638snd_azf3328_resume_ac97(const struct snd_azf3328 *chip) 2639{ 2640#ifdef AZF_USE_AC97_LAYER 2641 snd_ac97_resume(chip->ac97); 2642#else 2643 snd_azf3328_resume_regs(chip, chip->saved_regs_mixer, chip->mixer_io, 2644 ARRAY_SIZE(chip->saved_regs_mixer)); 2645 2646 /* unfortunately with 32bit transfers, IDX_MIXER_PLAY_MASTER (0x02) 2647 and IDX_MIXER_RESET (offset 0x00) get touched at the same time, 2648 resulting in a mixer reset condition persisting until _after_ 2649 master vol was restored. Thus master vol needs an extra restore. */ 2650 outw(((u16 *)chip->saved_regs_mixer)[1], chip->mixer_io + 2); 2651#endif /* AZF_USE_AC97_LAYER */ 2652} 2653 2654static int 2655snd_azf3328_suspend(struct device *dev) 2656{ 2657 struct snd_card *card = dev_get_drvdata(dev); 2658 struct snd_azf3328 *chip = card->private_data; 2659 u16 *saved_regs_ctrl_u16; 2660 2661 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 2662 2663 snd_azf3328_suspend_ac97(chip); 2664 2665 snd_azf3328_suspend_regs(chip, chip->ctrl_io, 2666 ARRAY_SIZE(chip->saved_regs_ctrl), chip->saved_regs_ctrl); 2667 2668 /* manually store the one currently relevant write-only reg, too */ 2669 saved_regs_ctrl_u16 = (u16 *)chip->saved_regs_ctrl; 2670 saved_regs_ctrl_u16[IDX_IO_6AH / 2] = chip->shadow_reg_ctrl_6AH; 2671 2672 snd_azf3328_suspend_regs(chip, chip->game_io, 2673 ARRAY_SIZE(chip->saved_regs_game), chip->saved_regs_game); 2674 snd_azf3328_suspend_regs(chip, chip->mpu_io, 2675 ARRAY_SIZE(chip->saved_regs_mpu), chip->saved_regs_mpu); 2676 snd_azf3328_suspend_regs(chip, chip->opl3_io, 2677 ARRAY_SIZE(chip->saved_regs_opl3), chip->saved_regs_opl3); 2678 return 0; 2679} 2680 2681static int 2682snd_azf3328_resume(struct device *dev) 2683{ 2684 struct snd_card *card = dev_get_drvdata(dev); 2685 const struct snd_azf3328 *chip = card->private_data; 2686 2687 snd_azf3328_resume_regs(chip, chip->saved_regs_game, chip->game_io, 2688 ARRAY_SIZE(chip->saved_regs_game)); 2689 snd_azf3328_resume_regs(chip, chip->saved_regs_mpu, chip->mpu_io, 2690 ARRAY_SIZE(chip->saved_regs_mpu)); 2691 snd_azf3328_resume_regs(chip, chip->saved_regs_opl3, chip->opl3_io, 2692 ARRAY_SIZE(chip->saved_regs_opl3)); 2693 2694 snd_azf3328_resume_ac97(chip); 2695 2696 snd_azf3328_resume_regs(chip, chip->saved_regs_ctrl, chip->ctrl_io, 2697 ARRAY_SIZE(chip->saved_regs_ctrl)); 2698 2699 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 2700 return 0; 2701} 2702 2703static SIMPLE_DEV_PM_OPS(snd_azf3328_pm, snd_azf3328_suspend, snd_azf3328_resume); 2704#define SND_AZF3328_PM_OPS &snd_azf3328_pm 2705#else 2706#define SND_AZF3328_PM_OPS NULL 2707#endif /* CONFIG_PM_SLEEP */ 2708 2709static struct pci_driver azf3328_driver = { 2710 .name = KBUILD_MODNAME, 2711 .id_table = snd_azf3328_ids, 2712 .probe = snd_azf3328_probe, 2713 .remove = snd_azf3328_remove, 2714 .driver = { 2715 .pm = SND_AZF3328_PM_OPS, 2716 }, 2717}; 2718 2719module_pci_driver(azf3328_driver); 2720