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[CPUFREQ] fix BUG on cpufreq policy init failure
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / pci / azt3328.c
blob573594bf3225810366186751b70b5ccf9b962a02
1 /*
2 * azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168).
3 * Copyright (C) 2002, 2005 - 2010 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 * GPL LICENSE
21 * This program is free software; you can redistribute it and/or modify
22 * it under the terms of the GNU General Public License as published by
23 * the Free Software Foundation; either version 2 of the License, or
24 * (at your option) any later version.
25 *
26 * This program is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * GNU General Public License for more details.
30
31 * You should have received a copy of the GNU General Public License
32 * along with this program; if not, write to the Free Software
33 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
34 *
35 * NOTES
36 * Since Aztech does not provide any chipset documentation,
37 * even on repeated request to various addresses,
38 * and the answer that was finally given was negative
39 * (and I was stupid enough to manage to get hold of a PCI168 soundcard
40 * in the first place >:-P}),
41 * I was forced to base this driver on reverse engineering
42 * (3 weeks' worth of evenings filled with driver work).
43 * (and no, I did NOT go the easy way: to pick up a SB PCI128 for 9 Euros)
44 *
45 * It is quite likely that the AZF3328 chip is the PCI cousin of the
46 * AZF3318 ("azt1020 pnp", "MM Pro 16") ISA chip, given very similar specs.
47 *
48 * The AZF3328 chip (note: AZF3328, *not* AZT3328, that's just the driver name
49 * for compatibility reasons) from Azfin (joint-venture of Aztech and Fincitec,
50 * Fincitec acquired by National Semiconductor in 2002, together with the
51 * Fincitec-related company ARSmikro) has the following features:
52 *
53 * - compatibility & compliance:
54 * - Microsoft PC 97 ("PC 97 Hardware Design Guide",
55 * http://www.microsoft.com/whdc/archive/pcguides.mspx)
56 * - Microsoft PC 98 Baseline Audio
57 * - MPU401 UART
58 * - Sound Blaster Emulation (DOS Box)
59 * - builtin AC97 conformant codec (SNR over 80dB)
60 * Note that "conformant" != "compliant"!! this chip's mixer register layout
61 * *differs* from the standard AC97 layout:
62 * they chose to not implement the headphone register (which is not a
63 * problem since it's merely optional), yet when doing this, they committed
64 * the grave sin of letting other registers follow immediately instead of
65 * keeping a headphone dummy register, thereby shifting the mixer register
66 * addresses illegally. So far unfortunately it looks like the very flexible
67 * ALSA AC97 support is still not enough to easily compensate for such a
68 * grave layout violation despite all tweaks and quirks mechanisms it offers.
69 * - builtin genuine OPL3 - verified to work fine, 20080506
70 * - full duplex 16bit playback/record at independent sampling rate
71 * - MPU401 (+ legacy address support, claimed by one official spec sheet)
72 * FIXME: how to enable legacy addr??
73 * - game port (legacy address support)
74 * - builtin DirectInput support, helps reduce CPU overhead (interrupt-driven
75 * features supported). - See common term "Digital Enhanced Game Port"...
76 * (probably DirectInput 3.0 spec - confirm)
77 * - builtin 3D enhancement (said to be YAMAHA Ymersion)
78 * - built-in General DirectX timer having a 20 bits counter
79 * with 1us resolution (see below!)
80 * - I2S serial output port for external DAC
81 * [FIXME: 3.3V or 5V level? maximum rate is 66.2kHz right?]
82 * - supports 33MHz PCI spec 2.1, PCI power management 1.0, compliant with ACPI
83 * - supports hardware volume control
84 * - single chip low cost solution (128 pin QFP)
85 * - supports programmable Sub-vendor and Sub-system ID [24C02 SEEPROM chip]
86 * required for Microsoft's logo compliance (FIXME: where?)
87 * At least the Trident 4D Wave DX has one bit somewhere
88 * to enable writes to PCI subsystem VID registers, that should be it.
89 * This might easily be in extended PCI reg space, since PCI168 also has
90 * some custom data starting at 0x80. What kind of config settings
91 * are located in our extended PCI space anyway??
92 * - PCI168 AP(W) card: power amplifier with 4 Watts/channel at 4 Ohms
93 * [TDA1517P chip]
94 *
95 * Note that this driver now is actually *better* than the Windows driver,
96 * since it additionally supports the card's 1MHz DirectX timer - just try
97 * the following snd-seq module parameters etc.:
98 * - options snd-seq seq_default_timer_class=2 seq_default_timer_sclass=0
99 * seq_default_timer_card=0 seq_client_load=1 seq_default_timer_device=0
100 * seq_default_timer_subdevice=0 seq_default_timer_resolution=1000000
101 * - "timidity -iAv -B2,8 -Os -EFreverb=0"
102 * - "pmidi -p 128:0 jazz.mid"
103 *
104 * OPL3 hardware playback testing, try something like:
105 * cat /proc/asound/hwdep
106 * and
107 * aconnect -o
108 * Then use
109 * sbiload -Dhw:x,y --opl3 /usr/share/sounds/opl3/std.o3 ......./drums.o3
110 * where x,y is the xx-yy number as given in hwdep.
111 * Then try
112 * pmidi -p a:b jazz.mid
113 * where a:b is the client number plus 0 usually, as given by aconnect above.
114 * Oh, and make sure to unmute the FM mixer control (doh!)
115 * NOTE: power use during OPL3 playback is _VERY_ high (70W --> 90W!)
116 * despite no CPU activity, possibly due to hindering ACPI idling somehow.
117 * Shouldn't be a problem of the AZF3328 chip itself, I'd hope.
118 * Higher PCM / FM mixer levels seem to conflict (causes crackling),
119 * at least sometimes. Maybe even use with hardware sequencer timer above :)
120 * adplay/adplug-utils might soon offer hardware-based OPL3 playback, too.
121 *
122 * Certain PCI versions of this card are susceptible to DMA traffic underruns
123 * in some systems (resulting in sound crackling/clicking/popping),
124 * probably because they don't have a DMA FIFO buffer or so.
125 * Overview (PCI ID/PCI subID/PCI rev.):
126 * - no DMA crackling on SiS735: 0x50DC/0x1801/16
127 * - unknown performance: 0x50DC/0x1801/10
128 * (well, it's not bad on an Athlon 1800 with now very optimized IRQ handler)
129 *
130 * Crackling happens with VIA chipsets or, in my case, an SiS735, which is
131 * supposed to be very fast and supposed to get rid of crackling much
132 * better than a VIA, yet ironically I still get crackling, like many other
133 * people with the same chipset.
134 * Possible remedies:
135 * - use speaker (amplifier) output instead of headphone output
136 * (in case crackling is due to overloaded output clipping)
137 * - plug card into a different PCI slot, preferrably one that isn't shared
138 * too much (this helps a lot, but not completely!)
139 * - get rid of PCI VGA card, use AGP instead
140 * - upgrade or downgrade BIOS
141 * - fiddle with PCI latency settings (setpci -v -s BUSID latency_timer=XX)
142 * Not too helpful.
143 * - Disable ACPI/power management/"Auto Detect RAM/PCI Clk" in BIOS
144 *
145 * BUGS
146 * - full-duplex might *still* be problematic, however a recent test was fine
147 * - (non-bug) "Bass/Treble or 3D settings don't work" - they do get evaluated
148 * if you set PCM output switch to "pre 3D" instead of "post 3D".
149 * If this can't be set, then get a mixer application that Isn't Stupid (tm)
150 * (e.g. kmix, gamix) - unfortunately several are!!
151 * - locking is not entirely clean, especially the audio stream activity
152 * ints --> may be racy
153 * - an _unconnected_ secondary joystick at the gameport will be reported
154 * to be "active" (floating values, not precisely -1) due to the way we need
155 * to read the Digital Enhanced Game Port. Not sure whether it is fixable.
156 *
157 * TODO
158 * - use PCI_VDEVICE
159 * - verify driver status on x86_64
160 * - test multi-card driver operation
161 * - (ab)use 1MHz DirectX timer as kernel clocksource
162 * - test MPU401 MIDI playback etc.
163 * - add more power micro-management (disable various units of the card
164 * as long as they're unused, to improve audio quality and save power).
165 * However this requires more I/O ports which I haven't figured out yet
166 * and which thus might not even exist...
167 * The standard suspend/resume functionality could probably make use of
168 * some improvement, too...
169 * - figure out what all unknown port bits are responsible for
170 * - figure out some cleverly evil scheme to possibly make ALSA AC97 code
171 * fully accept our quite incompatible ""AC97"" mixer and thus save some
172 * code (but I'm not too optimistic that doing this is possible at all)
173 * - use MMIO (memory-mapped I/O)? Slightly faster access, e.g. for gameport.
174 */
175
176 #include <asm/io.h>
177 #include <linux/init.h>
178 #include <linux/bug.h> /* WARN_ONCE */
179 #include <linux/pci.h>
180 #include <linux/delay.h>
181 #include <linux/slab.h>
182 #include <linux/gameport.h>
183 #include <linux/moduleparam.h>
184 #include <linux/dma-mapping.h>
185 #include <sound/core.h>
186 #include <sound/control.h>
187 #include <sound/pcm.h>
188 #include <sound/rawmidi.h>
189 #include <sound/mpu401.h>
190 #include <sound/opl3.h>
191 #include <sound/initval.h>
192 #include "azt3328.h"
193
194 MODULE_AUTHOR("Andreas Mohr <andi AT lisas.de>");
195 MODULE_DESCRIPTION("Aztech AZF3328 (PCI168)");
196 MODULE_LICENSE("GPL");
197 MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");
198
199 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
200 #define SUPPORT_GAMEPORT 1
201 #endif
202
203 /* === Debug settings ===
204 Further diagnostic functionality than the settings below
205 does not need to be provided, since one can easily write a POSIX shell script
206 to dump the card's I/O ports (those listed in lspci -v -v):
207 dump()
208 {
209 local descr=$1; local addr=$2; local count=$3
210
211 echo "${descr}: ${count} @ ${addr}:"
212 dd if=/dev/port skip=`printf %d ${addr}` count=${count} bs=1 \
213 2>/dev/null| hexdump -C
214 }
215 and then use something like
216 "dump joy200 0x200 8", "dump mpu388 0x388 4", "dump joy 0xb400 8",
217 "dump codec00 0xa800 32", "dump mixer 0xb800 64", "dump synth 0xbc00 8",
218 possibly within a "while true; do ... sleep 1; done" loop.
219 Tweaking ports could be done using
220 VALSTRING="`printf "%02x" $value`"
221 printf "\x""$VALSTRING"|dd of=/dev/port seek=`printf %d ${addr}` bs=1 \
222 2>/dev/null
223 */
224
225 #define DEBUG_MISC 0
226 #define DEBUG_CALLS 0
227 #define DEBUG_MIXER 0
228 #define DEBUG_CODEC 0
229 #define DEBUG_TIMER 0
230 #define DEBUG_GAME 0
231 #define DEBUG_PM 0
232 #define MIXER_TESTING 0
233
234 #if DEBUG_MISC
235 #define snd_azf3328_dbgmisc(format, args...) printk(KERN_DEBUG format, ##args)
236 #else
237 #define snd_azf3328_dbgmisc(format, args...)
238 #endif
239
240 #if DEBUG_CALLS
241 #define snd_azf3328_dbgcalls(format, args...) printk(format, ##args)
242 #define snd_azf3328_dbgcallenter() printk(KERN_DEBUG "--> %s\n", __func__)
243 #define snd_azf3328_dbgcallleave() printk(KERN_DEBUG "<-- %s\n", __func__)
244 #else
245 #define snd_azf3328_dbgcalls(format, args...)
246 #define snd_azf3328_dbgcallenter()
247 #define snd_azf3328_dbgcallleave()
248 #endif
249
250 #if DEBUG_MIXER
251 #define snd_azf3328_dbgmixer(format, args...) printk(KERN_DEBUG format, ##args)
252 #else
253 #define snd_azf3328_dbgmixer(format, args...)
254 #endif
255
256 #if DEBUG_CODEC
257 #define snd_azf3328_dbgcodec(format, args...) printk(KERN_DEBUG format, ##args)
258 #else
259 #define snd_azf3328_dbgcodec(format, args...)
260 #endif
261
262 #if DEBUG_MISC
263 #define snd_azf3328_dbgtimer(format, args...) printk(KERN_DEBUG format, ##args)
264 #else
265 #define snd_azf3328_dbgtimer(format, args...)
266 #endif
267
268 #if DEBUG_GAME
269 #define snd_azf3328_dbggame(format, args...) printk(KERN_DEBUG format, ##args)
270 #else
271 #define snd_azf3328_dbggame(format, args...)
272 #endif
273
274 #if DEBUG_PM
275 #define snd_azf3328_dbgpm(format, args...) printk(KERN_DEBUG format, ##args)
276 #else
277 #define snd_azf3328_dbgpm(format, args...)
278 #endif
279
280 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
281 module_param_array(index, int, NULL, 0444);
282 MODULE_PARM_DESC(index, "Index value for AZF3328 soundcard.");
283
284 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
285 module_param_array(id, charp, NULL, 0444);
286 MODULE_PARM_DESC(id, "ID string for AZF3328 soundcard.");
287
288 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
289 module_param_array(enable, bool, NULL, 0444);
290 MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard.");
291
292 static int seqtimer_scaling = 128;
293 module_param(seqtimer_scaling, int, 0444);
294 MODULE_PARM_DESC(seqtimer_scaling, "Set 1024000Hz sequencer timer scale factor (lockup danger!). Default 128.");
295
296 enum snd_azf3328_codec_type {
297 /* warning: fixed indices (also used for bitmask checks!) */
298 AZF_CODEC_PLAYBACK = 0,
299 AZF_CODEC_CAPTURE = 1,
300 AZF_CODEC_I2S_OUT = 2,
301 };
302
303 struct snd_azf3328_codec_data {
304 unsigned long io_base; /* keep first! (avoid offset calc) */
305 unsigned int dma_base; /* helper to avoid an indirection in hotpath */
306 spinlock_t *lock; /* TODO: convert to our own per-codec lock member */
307 struct snd_pcm_substream *substream;
308 bool running;
309 enum snd_azf3328_codec_type type;
310 const char *name;
311 };
312
313 struct snd_azf3328 {
314 /* often-used fields towards beginning, then grouped */
315
316 unsigned long ctrl_io; /* usually 0xb000, size 128 */
317 unsigned long game_io; /* usually 0xb400, size 8 */
318 unsigned long mpu_io; /* usually 0xb800, size 4 */
319 unsigned long opl3_io; /* usually 0xbc00, size 8 */
320 unsigned long mixer_io; /* usually 0xc000, size 64 */
321
322 spinlock_t reg_lock;
323
324 struct snd_timer *timer;
325
326 struct snd_pcm *pcm[3];
327
328 /* playback, recording and I2S out codecs */
329 struct snd_azf3328_codec_data codecs[3];
330
331 struct snd_card *card;
332 struct snd_rawmidi *rmidi;
333
334 #ifdef SUPPORT_GAMEPORT
335 struct gameport *gameport;
336 u16 axes[4];
337 #endif
338
339 struct pci_dev *pci;
340 int irq;
341
342 /* register 0x6a is write-only, thus need to remember setting.
343 * If we need to add more registers here, then we might try to fold this
344 * into some transparent combined shadow register handling with
345 * CONFIG_PM register storage below, but that's slightly difficult. */
346 u16 shadow_reg_ctrl_6AH;
347
348 #ifdef CONFIG_PM
349 /* register value containers for power management
350 * Note: not always full I/O range preserved (similar to Win driver!) */
351 u32 saved_regs_ctrl[AZF_ALIGN(AZF_IO_SIZE_CTRL_PM) / 4];
352 u32 saved_regs_game[AZF_ALIGN(AZF_IO_SIZE_GAME_PM) / 4];
353 u32 saved_regs_mpu[AZF_ALIGN(AZF_IO_SIZE_MPU_PM) / 4];
354 u32 saved_regs_opl3[AZF_ALIGN(AZF_IO_SIZE_OPL3_PM) / 4];
355 u32 saved_regs_mixer[AZF_ALIGN(AZF_IO_SIZE_MIXER_PM) / 4];
356 #endif
357 };
358
359 static DEFINE_PCI_DEVICE_TABLE(snd_azf3328_ids) = {
360 { 0x122D, 0x50DC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* PCI168/3328 */
361 { 0x122D, 0x80DA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* 3328 */
362 { 0, }
363 };
364
365 MODULE_DEVICE_TABLE(pci, snd_azf3328_ids);
366
367
368 static int
369 snd_azf3328_io_reg_setb(unsigned reg, u8 mask, bool do_set)
370 {
371 /* Well, strictly spoken, the inb/outb sequence isn't atomic
372 and would need locking. However we currently don't care
373 since it potentially complicates matters. */
374 u8 prev = inb(reg), new;
375
376 new = (do_set) ? (prev|mask) : (prev & ~mask);
377 /* we need to always write the new value no matter whether it differs
378 * or not, since some register bits don't indicate their setting */
379 outb(new, reg);
380 if (new != prev)
381 return 1;
382
383 return 0;
384 }
385
386 static inline void
387 snd_azf3328_codec_outb(const struct snd_azf3328_codec_data *codec,
388 unsigned reg,
389 u8 value
390 )
391 {
392 outb(value, codec->io_base + reg);
393 }
394
395 static inline u8
396 snd_azf3328_codec_inb(const struct snd_azf3328_codec_data *codec, unsigned reg)
397 {
398 return inb(codec->io_base + reg);
399 }
400
401 static inline void
402 snd_azf3328_codec_outw(const struct snd_azf3328_codec_data *codec,
403 unsigned reg,
404 u16 value
405 )
406 {
407 outw(value, codec->io_base + reg);
408 }
409
410 static inline u16
411 snd_azf3328_codec_inw(const struct snd_azf3328_codec_data *codec, unsigned reg)
412 {
413 return inw(codec->io_base + reg);
414 }
415
416 static inline void
417 snd_azf3328_codec_outl(const struct snd_azf3328_codec_data *codec,
418 unsigned reg,
419 u32 value
420 )
421 {
422 outl(value, codec->io_base + reg);
423 }
424
425 static inline void
426 snd_azf3328_codec_outl_multi(const struct snd_azf3328_codec_data *codec,
427 unsigned reg, const void *buffer, int count
428 )
429 {
430 unsigned long addr = codec->io_base + reg;
431 if (count) {
432 const u32 *buf = buffer;
433 do {
434 outl(*buf++, addr);
435 addr += 4;
436 } while (--count);
437 }
438 }
439
440 static inline u32
441 snd_azf3328_codec_inl(const struct snd_azf3328_codec_data *codec, unsigned reg)
442 {
443 return inl(codec->io_base + reg);
444 }
445
446 static inline void
447 snd_azf3328_ctrl_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value)
448 {
449 outb(value, chip->ctrl_io + reg);
450 }
451
452 static inline u8
453 snd_azf3328_ctrl_inb(const struct snd_azf3328 *chip, unsigned reg)
454 {
455 return inb(chip->ctrl_io + reg);
456 }
457
458 static inline void
459 snd_azf3328_ctrl_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
460 {
461 outw(value, chip->ctrl_io + reg);
462 }
463
464 static inline void
465 snd_azf3328_ctrl_outl(const struct snd_azf3328 *chip, unsigned reg, u32 value)
466 {
467 outl(value, chip->ctrl_io + reg);
468 }
469
470 static inline void
471 snd_azf3328_game_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value)
472 {
473 outb(value, chip->game_io + reg);
474 }
475
476 static inline void
477 snd_azf3328_game_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
478 {
479 outw(value, chip->game_io + reg);
480 }
481
482 static inline u8
483 snd_azf3328_game_inb(const struct snd_azf3328 *chip, unsigned reg)
484 {
485 return inb(chip->game_io + reg);
486 }
487
488 static inline u16
489 snd_azf3328_game_inw(const struct snd_azf3328 *chip, unsigned reg)
490 {
491 return inw(chip->game_io + reg);
492 }
493
494 static inline void
495 snd_azf3328_mixer_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
496 {
497 outw(value, chip->mixer_io + reg);
498 }
499
500 static inline u16
501 snd_azf3328_mixer_inw(const struct snd_azf3328 *chip, unsigned reg)
502 {
503 return inw(chip->mixer_io + reg);
504 }
505
506 #define AZF_MUTE_BIT 0x80
507
508 static bool
509 snd_azf3328_mixer_set_mute(const struct snd_azf3328 *chip,
510 unsigned reg, bool do_mute
511 )
512 {
513 unsigned long portbase = chip->mixer_io + reg + 1;
514 bool updated;
515
516 /* the mute bit is on the *second* (i.e. right) register of a
517 * left/right channel setting */
518 updated = snd_azf3328_io_reg_setb(portbase, AZF_MUTE_BIT, do_mute);
519
520 /* indicate whether it was muted before */
521 return (do_mute) ? !updated : updated;
522 }
523
524 static void
525 snd_azf3328_mixer_write_volume_gradually(const struct snd_azf3328 *chip,
526 unsigned reg,
527 unsigned char dst_vol_left,
528 unsigned char dst_vol_right,
529 int chan_sel, int delay
530 )
531 {
532 unsigned long portbase = chip->mixer_io + reg;
533 unsigned char curr_vol_left = 0, curr_vol_right = 0;
534 int left_change = 0, right_change = 0;
535
536 snd_azf3328_dbgcallenter();
537
538 if (chan_sel & SET_CHAN_LEFT) {
539 curr_vol_left = inb(portbase + 1);
540
541 /* take care of muting flag contained in left channel */
542 if (curr_vol_left & AZF_MUTE_BIT)
543 dst_vol_left |= AZF_MUTE_BIT;
544 else
545 dst_vol_left &= ~AZF_MUTE_BIT;
546
547 left_change = (curr_vol_left > dst_vol_left) ? -1 : 1;
548 }
549
550 if (chan_sel & SET_CHAN_RIGHT) {
551 curr_vol_right = inb(portbase + 0);
552
553 right_change = (curr_vol_right > dst_vol_right) ? -1 : 1;
554 }
555
556 do {
557 if (left_change) {
558 if (curr_vol_left != dst_vol_left) {
559 curr_vol_left += left_change;
560 outb(curr_vol_left, portbase + 1);
561 } else
562 left_change = 0;
563 }
564 if (right_change) {
565 if (curr_vol_right != dst_vol_right) {
566 curr_vol_right += right_change;
567
568 /* during volume change, the right channel is crackling
569 * somewhat more than the left channel, unfortunately.
570 * This seems to be a hardware issue. */
571 outb(curr_vol_right, portbase + 0);
572 } else
573 right_change = 0;
574 }
575 if (delay)
576 mdelay(delay);
577 } while ((left_change) || (right_change));
578 snd_azf3328_dbgcallleave();
579 }
580
581 /*
582 * general mixer element
583 */
584 struct azf3328_mixer_reg {
585 unsigned reg;
586 unsigned int lchan_shift, rchan_shift;
587 unsigned int mask;
588 unsigned int invert: 1;
589 unsigned int stereo: 1;
590 unsigned int enum_c: 4;
591 };
592
593 #define COMPOSE_MIXER_REG(reg,lchan_shift,rchan_shift,mask,invert,stereo,enum_c) \
594 ((reg) | (lchan_shift << 8) | (rchan_shift << 12) | \
595 (mask << 16) | \
596 (invert << 24) | \
597 (stereo << 25) | \
598 (enum_c << 26))
599
600 static void snd_azf3328_mixer_reg_decode(struct azf3328_mixer_reg *r, unsigned long val)
601 {
602 r->reg = val & 0xff;
603 r->lchan_shift = (val >> 8) & 0x0f;
604 r->rchan_shift = (val >> 12) & 0x0f;
605 r->mask = (val >> 16) & 0xff;
606 r->invert = (val >> 24) & 1;
607 r->stereo = (val >> 25) & 1;
608 r->enum_c = (val >> 26) & 0x0f;
609 }
610
611 /*
612 * mixer switches/volumes
613 */
614
615 #define AZF3328_MIXER_SWITCH(xname, reg, shift, invert) \
616 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
617 .info = snd_azf3328_info_mixer, \
618 .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
619 .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0x1, invert, 0, 0), \
620 }
621
622 #define AZF3328_MIXER_VOL_STEREO(xname, reg, mask, invert) \
623 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
624 .info = snd_azf3328_info_mixer, \
625 .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
626 .private_value = COMPOSE_MIXER_REG(reg, 8, 0, mask, invert, 1, 0), \
627 }
628
629 #define AZF3328_MIXER_VOL_MONO(xname, reg, mask, is_right_chan) \
630 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
631 .info = snd_azf3328_info_mixer, \
632 .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
633 .private_value = COMPOSE_MIXER_REG(reg, is_right_chan ? 0 : 8, 0, mask, 1, 0, 0), \
634 }
635
636 #define AZF3328_MIXER_VOL_SPECIAL(xname, reg, mask, shift, invert) \
637 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
638 .info = snd_azf3328_info_mixer, \
639 .get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
640 .private_value = COMPOSE_MIXER_REG(reg, shift, 0, mask, invert, 0, 0), \
641 }
642
643 #define AZF3328_MIXER_ENUM(xname, reg, enum_c, shift) \
644 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
645 .info = snd_azf3328_info_mixer_enum, \
646 .get = snd_azf3328_get_mixer_enum, .put = snd_azf3328_put_mixer_enum, \
647 .private_value = COMPOSE_MIXER_REG(reg, shift, 0, 0, 0, 0, enum_c), \
648 }
649
650 static int
651 snd_azf3328_info_mixer(struct snd_kcontrol *kcontrol,
652 struct snd_ctl_elem_info *uinfo)
653 {
654 struct azf3328_mixer_reg reg;
655
656 snd_azf3328_dbgcallenter();
657 snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
658 uinfo->type = reg.mask == 1 ?
659 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
660 uinfo->count = reg.stereo + 1;
661 uinfo->value.integer.min = 0;
662 uinfo->value.integer.max = reg.mask;
663 snd_azf3328_dbgcallleave();
664 return 0;
665 }
666
667 static int
668 snd_azf3328_get_mixer(struct snd_kcontrol *kcontrol,
669 struct snd_ctl_elem_value *ucontrol)
670 {
671 struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
672 struct azf3328_mixer_reg reg;
673 u16 oreg, val;
674
675 snd_azf3328_dbgcallenter();
676 snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
677
678 oreg = snd_azf3328_mixer_inw(chip, reg.reg);
679 val = (oreg >> reg.lchan_shift) & reg.mask;
680 if (reg.invert)
681 val = reg.mask - val;
682 ucontrol->value.integer.value[0] = val;
683 if (reg.stereo) {
684 val = (oreg >> reg.rchan_shift) & reg.mask;
685 if (reg.invert)
686 val = reg.mask - val;
687 ucontrol->value.integer.value[1] = val;
688 }
689 snd_azf3328_dbgmixer("get: %02x is %04x -> vol %02lx|%02lx "
690 "(shift %02d|%02d, mask %02x, inv. %d, stereo %d)\n",
691 reg.reg, oreg,
692 ucontrol->value.integer.value[0], ucontrol->value.integer.value[1],
693 reg.lchan_shift, reg.rchan_shift, reg.mask, reg.invert, reg.stereo);
694 snd_azf3328_dbgcallleave();
695 return 0;
696 }
697
698 static int
699 snd_azf3328_put_mixer(struct snd_kcontrol *kcontrol,
700 struct snd_ctl_elem_value *ucontrol)
701 {
702 struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
703 struct azf3328_mixer_reg reg;
704 u16 oreg, nreg, val;
705
706 snd_azf3328_dbgcallenter();
707 snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
708 oreg = snd_azf3328_mixer_inw(chip, reg.reg);
709 val = ucontrol->value.integer.value[0] & reg.mask;
710 if (reg.invert)
711 val = reg.mask - val;
712 nreg = oreg & ~(reg.mask << reg.lchan_shift);
713 nreg |= (val << reg.lchan_shift);
714 if (reg.stereo) {
715 val = ucontrol->value.integer.value[1] & reg.mask;
716 if (reg.invert)
717 val = reg.mask - val;
718 nreg &= ~(reg.mask << reg.rchan_shift);
719 nreg |= (val << reg.rchan_shift);
720 }
721 if (reg.mask >= 0x07) /* it's a volume control, so better take care */
722 snd_azf3328_mixer_write_volume_gradually(
723 chip, reg.reg, nreg >> 8, nreg & 0xff,
724 /* just set both channels, doesn't matter */
725 SET_CHAN_LEFT|SET_CHAN_RIGHT,
726 0);
727 else
728 snd_azf3328_mixer_outw(chip, reg.reg, nreg);
729
730 snd_azf3328_dbgmixer("put: %02x to %02lx|%02lx, "
731 "oreg %04x; shift %02d|%02d -> nreg %04x; after: %04x\n",
732 reg.reg, ucontrol->value.integer.value[0], ucontrol->value.integer.value[1],
733 oreg, reg.lchan_shift, reg.rchan_shift,
734 nreg, snd_azf3328_mixer_inw(chip, reg.reg));
735 snd_azf3328_dbgcallleave();
736 return (nreg != oreg);
737 }
738
739 static int
740 snd_azf3328_info_mixer_enum(struct snd_kcontrol *kcontrol,
741 struct snd_ctl_elem_info *uinfo)
742 {
743 static const char * const texts1[] = {
744 "Mic1", "Mic2"
745 };
746 static const char * const texts2[] = {
747 "Mix", "Mic"
748 };
749 static const char * const texts3[] = {
750 "Mic", "CD", "Video", "Aux",
751 "Line", "Mix", "Mix Mono", "Phone"
752 };
753 static const char * const texts4[] = {
754 "pre 3D", "post 3D"
755 };
756 struct azf3328_mixer_reg reg;
757 const char * const *p = NULL;
758
759 snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
760 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
761 uinfo->count = (reg.reg == IDX_MIXER_REC_SELECT) ? 2 : 1;
762 uinfo->value.enumerated.items = reg.enum_c;
763 if (uinfo->value.enumerated.item > reg.enum_c - 1U)
764 uinfo->value.enumerated.item = reg.enum_c - 1U;
765 if (reg.reg == IDX_MIXER_ADVCTL2) {
766 switch(reg.lchan_shift) {
767 case 8: /* modem out sel */
768 p = texts1;
769 break;
770 case 9: /* mono sel source */
771 p = texts2;
772 break;
773 case 15: /* PCM Out Path */
774 p = texts4;
775 break;
776 }
777 } else
778 if (reg.reg == IDX_MIXER_REC_SELECT)
779 p = texts3;
780
781 strcpy(uinfo->value.enumerated.name, p[uinfo->value.enumerated.item]);
782 return 0;
783 }
784
785 static int
786 snd_azf3328_get_mixer_enum(struct snd_kcontrol *kcontrol,
787 struct snd_ctl_elem_value *ucontrol)
788 {
789 struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
790 struct azf3328_mixer_reg reg;
791 unsigned short val;
792
793 snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
794 val = snd_azf3328_mixer_inw(chip, reg.reg);
795 if (reg.reg == IDX_MIXER_REC_SELECT) {
796 ucontrol->value.enumerated.item[0] = (val >> 8) & (reg.enum_c - 1);
797 ucontrol->value.enumerated.item[1] = (val >> 0) & (reg.enum_c - 1);
798 } else
799 ucontrol->value.enumerated.item[0] = (val >> reg.lchan_shift) & (reg.enum_c - 1);
800
801 snd_azf3328_dbgmixer("get_enum: %02x is %04x -> %d|%d (shift %02d, enum_c %d)\n",
802 reg.reg, val, ucontrol->value.enumerated.item[0], ucontrol->value.enumerated.item[1],
803 reg.lchan_shift, reg.enum_c);
804 return 0;
805 }
806
807 static int
808 snd_azf3328_put_mixer_enum(struct snd_kcontrol *kcontrol,
809 struct snd_ctl_elem_value *ucontrol)
810 {
811 struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
812 struct azf3328_mixer_reg reg;
813 u16 oreg, nreg, val;
814
815 snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
816 oreg = snd_azf3328_mixer_inw(chip, reg.reg);
817 val = oreg;
818 if (reg.reg == IDX_MIXER_REC_SELECT) {
819 if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U ||
820 ucontrol->value.enumerated.item[1] > reg.enum_c - 1U)
821 return -EINVAL;
822 val = (ucontrol->value.enumerated.item[0] << 8) |
823 (ucontrol->value.enumerated.item[1] << 0);
824 } else {
825 if (ucontrol->value.enumerated.item[0] > reg.enum_c - 1U)
826 return -EINVAL;
827 val &= ~((reg.enum_c - 1) << reg.lchan_shift);
828 val |= (ucontrol->value.enumerated.item[0] << reg.lchan_shift);
829 }
830 snd_azf3328_mixer_outw(chip, reg.reg, val);
831 nreg = val;
832
833 snd_azf3328_dbgmixer("put_enum: %02x to %04x, oreg %04x\n", reg.reg, val, oreg);
834 return (nreg != oreg);
835 }
836
837 static struct snd_kcontrol_new snd_azf3328_mixer_controls[] __devinitdata = {
838 AZF3328_MIXER_SWITCH("Master Playback Switch", IDX_MIXER_PLAY_MASTER, 15, 1),
839 AZF3328_MIXER_VOL_STEREO("Master Playback Volume", IDX_MIXER_PLAY_MASTER, 0x1f, 1),
840 AZF3328_MIXER_SWITCH("PCM Playback Switch", IDX_MIXER_WAVEOUT, 15, 1),
841 AZF3328_MIXER_VOL_STEREO("PCM Playback Volume",
842 IDX_MIXER_WAVEOUT, 0x1f, 1),
843 AZF3328_MIXER_SWITCH("PCM 3D Bypass Playback Switch",
844 IDX_MIXER_ADVCTL2, 7, 1),
845 AZF3328_MIXER_SWITCH("FM Playback Switch", IDX_MIXER_FMSYNTH, 15, 1),
846 AZF3328_MIXER_VOL_STEREO("FM Playback Volume", IDX_MIXER_FMSYNTH, 0x1f, 1),
847 AZF3328_MIXER_SWITCH("CD Playback Switch", IDX_MIXER_CDAUDIO, 15, 1),
848 AZF3328_MIXER_VOL_STEREO("CD Playback Volume", IDX_MIXER_CDAUDIO, 0x1f, 1),
849 AZF3328_MIXER_SWITCH("Capture Switch", IDX_MIXER_REC_VOLUME, 15, 1),
850 AZF3328_MIXER_VOL_STEREO("Capture Volume", IDX_MIXER_REC_VOLUME, 0x0f, 0),
851 AZF3328_MIXER_ENUM("Capture Source", IDX_MIXER_REC_SELECT, 8, 0),
852 AZF3328_MIXER_SWITCH("Mic Playback Switch", IDX_MIXER_MIC, 15, 1),
853 AZF3328_MIXER_VOL_MONO("Mic Playback Volume", IDX_MIXER_MIC, 0x1f, 1),
854 AZF3328_MIXER_SWITCH("Mic Boost (+20dB)", IDX_MIXER_MIC, 6, 0),
855 AZF3328_MIXER_SWITCH("Line Playback Switch", IDX_MIXER_LINEIN, 15, 1),
856 AZF3328_MIXER_VOL_STEREO("Line Playback Volume", IDX_MIXER_LINEIN, 0x1f, 1),
857 AZF3328_MIXER_SWITCH("Beep Playback Switch", IDX_MIXER_PCBEEP, 15, 1),
858 AZF3328_MIXER_VOL_SPECIAL("Beep Playback Volume", IDX_MIXER_PCBEEP, 0x0f, 1, 1),
859 AZF3328_MIXER_SWITCH("Video Playback Switch", IDX_MIXER_VIDEO, 15, 1),
860 AZF3328_MIXER_VOL_STEREO("Video Playback Volume", IDX_MIXER_VIDEO, 0x1f, 1),
861 AZF3328_MIXER_SWITCH("Aux Playback Switch", IDX_MIXER_AUX, 15, 1),
862 AZF3328_MIXER_VOL_STEREO("Aux Playback Volume", IDX_MIXER_AUX, 0x1f, 1),
863 AZF3328_MIXER_SWITCH("Modem Playback Switch", IDX_MIXER_MODEMOUT, 15, 1),
864 AZF3328_MIXER_VOL_MONO("Modem Playback Volume", IDX_MIXER_MODEMOUT, 0x1f, 1),
865 AZF3328_MIXER_SWITCH("Modem Capture Switch", IDX_MIXER_MODEMIN, 15, 1),
866 AZF3328_MIXER_VOL_MONO("Modem Capture Volume", IDX_MIXER_MODEMIN, 0x1f, 1),
867 AZF3328_MIXER_ENUM("Mic Select", IDX_MIXER_ADVCTL2, 2, 8),
868 AZF3328_MIXER_ENUM("Mono Output Select", IDX_MIXER_ADVCTL2, 2, 9),
869 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! */
870 AZF3328_MIXER_VOL_SPECIAL("Tone Control - Treble", IDX_MIXER_BASSTREBLE, 0x07, 1, 0),
871 AZF3328_MIXER_VOL_SPECIAL("Tone Control - Bass", IDX_MIXER_BASSTREBLE, 0x07, 9, 0),
872 AZF3328_MIXER_SWITCH("3D Control - Switch", IDX_MIXER_ADVCTL2, 13, 0),
873 AZF3328_MIXER_VOL_SPECIAL("3D Control - Width", IDX_MIXER_ADVCTL1, 0x07, 1, 0), /* "3D Width" */
874 AZF3328_MIXER_VOL_SPECIAL("3D Control - Depth", IDX_MIXER_ADVCTL1, 0x03, 8, 0), /* "Hifi 3D" */
875 #if MIXER_TESTING
876 AZF3328_MIXER_SWITCH("0", IDX_MIXER_ADVCTL2, 0, 0),
877 AZF3328_MIXER_SWITCH("1", IDX_MIXER_ADVCTL2, 1, 0),
878 AZF3328_MIXER_SWITCH("2", IDX_MIXER_ADVCTL2, 2, 0),
879 AZF3328_MIXER_SWITCH("3", IDX_MIXER_ADVCTL2, 3, 0),
880 AZF3328_MIXER_SWITCH("4", IDX_MIXER_ADVCTL2, 4, 0),
881 AZF3328_MIXER_SWITCH("5", IDX_MIXER_ADVCTL2, 5, 0),
882 AZF3328_MIXER_SWITCH("6", IDX_MIXER_ADVCTL2, 6, 0),
883 AZF3328_MIXER_SWITCH("7", IDX_MIXER_ADVCTL2, 7, 0),
884 AZF3328_MIXER_SWITCH("8", IDX_MIXER_ADVCTL2, 8, 0),
885 AZF3328_MIXER_SWITCH("9", IDX_MIXER_ADVCTL2, 9, 0),
886 AZF3328_MIXER_SWITCH("10", IDX_MIXER_ADVCTL2, 10, 0),
887 AZF3328_MIXER_SWITCH("11", IDX_MIXER_ADVCTL2, 11, 0),
888 AZF3328_MIXER_SWITCH("12", IDX_MIXER_ADVCTL2, 12, 0),
889 AZF3328_MIXER_SWITCH("13", IDX_MIXER_ADVCTL2, 13, 0),
890 AZF3328_MIXER_SWITCH("14", IDX_MIXER_ADVCTL2, 14, 0),
891 AZF3328_MIXER_SWITCH("15", IDX_MIXER_ADVCTL2, 15, 0),
892 #endif
893 };
894
895 static u16 __devinitdata snd_azf3328_init_values[][2] = {
896 { IDX_MIXER_PLAY_MASTER, MIXER_MUTE_MASK|0x1f1f },
897 { IDX_MIXER_MODEMOUT, MIXER_MUTE_MASK|0x1f1f },
898 { IDX_MIXER_BASSTREBLE, 0x0000 },
899 { IDX_MIXER_PCBEEP, MIXER_MUTE_MASK|0x1f1f },
900 { IDX_MIXER_MODEMIN, MIXER_MUTE_MASK|0x1f1f },
901 { IDX_MIXER_MIC, MIXER_MUTE_MASK|0x001f },
902 { IDX_MIXER_LINEIN, MIXER_MUTE_MASK|0x1f1f },
903 { IDX_MIXER_CDAUDIO, MIXER_MUTE_MASK|0x1f1f },
904 { IDX_MIXER_VIDEO, MIXER_MUTE_MASK|0x1f1f },
905 { IDX_MIXER_AUX, MIXER_MUTE_MASK|0x1f1f },
906 { IDX_MIXER_WAVEOUT, MIXER_MUTE_MASK|0x1f1f },
907 { IDX_MIXER_FMSYNTH, MIXER_MUTE_MASK|0x1f1f },
908 { IDX_MIXER_REC_VOLUME, MIXER_MUTE_MASK|0x0707 },
909 };
910
911 static int __devinit
912 snd_azf3328_mixer_new(struct snd_azf3328 *chip)
913 {
914 struct snd_card *card;
915 const struct snd_kcontrol_new *sw;
916 unsigned int idx;
917 int err;
918
919 snd_azf3328_dbgcallenter();
920 if (snd_BUG_ON(!chip || !chip->card))
921 return -EINVAL;
922
923 card = chip->card;
924
925 /* mixer reset */
926 snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000);
927
928 /* mute and zero volume channels */
929 for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_init_values); ++idx) {
930 snd_azf3328_mixer_outw(chip,
931 snd_azf3328_init_values[idx][0],
932 snd_azf3328_init_values[idx][1]);
933 }
934
935 /* add mixer controls */
936 sw = snd_azf3328_mixer_controls;
937 for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_mixer_controls);
938 ++idx, ++sw) {
939 if ((err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip))) < 0)
940 return err;
941 }
942 snd_component_add(card, "AZF3328 mixer");
943 strcpy(card->mixername, "AZF3328 mixer");
944
945 snd_azf3328_dbgcallleave();
946 return 0;
947 }
948
949 static int
950 snd_azf3328_hw_params(struct snd_pcm_substream *substream,
951 struct snd_pcm_hw_params *hw_params)
952 {
953 int res;
954 snd_azf3328_dbgcallenter();
955 res = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
956 snd_azf3328_dbgcallleave();
957 return res;
958 }
959
960 static int
961 snd_azf3328_hw_free(struct snd_pcm_substream *substream)
962 {
963 snd_azf3328_dbgcallenter();
964 snd_pcm_lib_free_pages(substream);
965 snd_azf3328_dbgcallleave();
966 return 0;
967 }
968
969 static void
970 snd_azf3328_codec_setfmt(struct snd_azf3328_codec_data *codec,
971 enum azf_freq_t bitrate,
972 unsigned int format_width,
973 unsigned int channels
974 )
975 {
976 unsigned long flags;
977 u16 val = 0xff00;
978 u8 freq = 0;
979
980 snd_azf3328_dbgcallenter();
981 switch (bitrate) {
982 case AZF_FREQ_4000: freq = SOUNDFORMAT_FREQ_SUSPECTED_4000; break;
983 case AZF_FREQ_4800: freq = SOUNDFORMAT_FREQ_SUSPECTED_4800; break;
984 case AZF_FREQ_5512:
985 /* the AZF3328 names it "5510" for some strange reason */
986 freq = SOUNDFORMAT_FREQ_5510; break;
987 case AZF_FREQ_6620: freq = SOUNDFORMAT_FREQ_6620; break;
988 case AZF_FREQ_8000: freq = SOUNDFORMAT_FREQ_8000; break;
989 case AZF_FREQ_9600: freq = SOUNDFORMAT_FREQ_9600; break;
990 case AZF_FREQ_11025: freq = SOUNDFORMAT_FREQ_11025; break;
991 case AZF_FREQ_13240: freq = SOUNDFORMAT_FREQ_SUSPECTED_13240; break;
992 case AZF_FREQ_16000: freq = SOUNDFORMAT_FREQ_16000; break;
993 case AZF_FREQ_22050: freq = SOUNDFORMAT_FREQ_22050; break;
994 case AZF_FREQ_32000: freq = SOUNDFORMAT_FREQ_32000; break;
995 default:
996 snd_printk(KERN_WARNING "unknown bitrate %d, assuming 44.1kHz!\n", bitrate);
997 /* fall-through */
998 case AZF_FREQ_44100: freq = SOUNDFORMAT_FREQ_44100; break;
999 case AZF_FREQ_48000: freq = SOUNDFORMAT_FREQ_48000; break;
1000 case AZF_FREQ_66200: freq = SOUNDFORMAT_FREQ_SUSPECTED_66200; break;
1001 }
1002 /* val = 0xff07; 3m27.993s (65301Hz; -> 64000Hz???) hmm, 66120, 65967, 66123 */
1003 /* val = 0xff09; 17m15.098s (13123,478Hz; -> 12000Hz???) hmm, 13237.2Hz? */
1004 /* val = 0xff0a; 47m30.599s (4764,891Hz; -> 4800Hz???) yup, 4803Hz */
1005 /* val = 0xff0c; 57m0.510s (4010,263Hz; -> 4000Hz???) yup, 4003Hz */
1006 /* val = 0xff05; 5m11.556s (... -> 44100Hz) */
1007 /* val = 0xff03; 10m21.529s (21872,463Hz; -> 22050Hz???) */
1008 /* val = 0xff0f; 20m41.883s (10937,993Hz; -> 11025Hz???) */
1009 /* val = 0xff0d; 41m23.135s (5523,600Hz; -> 5512Hz???) */
1010 /* val = 0xff0e; 28m30.777s (8017Hz; -> 8000Hz???) */
1011
1012 val |= freq;
1013
1014 if (channels == 2)
1015 val |= SOUNDFORMAT_FLAG_2CHANNELS;
1016
1017 if (format_width == 16)
1018 val |= SOUNDFORMAT_FLAG_16BIT;
1019
1020 spin_lock_irqsave(codec->lock, flags);
1021
1022 /* set bitrate/format */
1023 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_SOUNDFORMAT, val);
1024
1025 /* changing the bitrate/format settings switches off the
1026 * audio output with an annoying click in case of 8/16bit format change
1027 * (maybe shutting down DAC/ADC?), thus immediately
1028 * do some tweaking to reenable it and get rid of the clicking
1029 * (FIXME: yes, it works, but what exactly am I doing here?? :)
1030 * FIXME: does this have some side effects for full-duplex
1031 * or other dramatic side effects? */
1032 /* do it for non-capture codecs only */
1033 if (codec->type != AZF_CODEC_CAPTURE)
1034 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
1035 snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS) |
1036 DMA_RUN_SOMETHING1 |
1037 DMA_RUN_SOMETHING2 |
1038 SOMETHING_ALMOST_ALWAYS_SET |
1039 DMA_EPILOGUE_SOMETHING |
1040 DMA_SOMETHING_ELSE
1041 );
1042
1043 spin_unlock_irqrestore(codec->lock, flags);
1044 snd_azf3328_dbgcallleave();
1045 }
1046
1047 static inline void
1048 snd_azf3328_codec_setfmt_lowpower(struct snd_azf3328_codec_data *codec
1049 )
1050 {
1051 /* choose lowest frequency for low power consumption.
1052 * While this will cause louder noise due to rather coarse frequency,
1053 * it should never matter since output should always
1054 * get disabled properly when idle anyway. */
1055 snd_azf3328_codec_setfmt(codec, AZF_FREQ_4000, 8, 1);
1056 }
1057
1058 static void
1059 snd_azf3328_ctrl_reg_6AH_update(struct snd_azf3328 *chip,
1060 unsigned bitmask,
1061 bool enable
1062 )
1063 {
1064 bool do_mask = !enable;
1065 if (do_mask)
1066 chip->shadow_reg_ctrl_6AH |= bitmask;
1067 else
1068 chip->shadow_reg_ctrl_6AH &= ~bitmask;
1069 snd_azf3328_dbgcodec("6AH_update mask 0x%04x do_mask %d: val 0x%04x\n",
1070 bitmask, do_mask, chip->shadow_reg_ctrl_6AH);
1071 snd_azf3328_ctrl_outw(chip, IDX_IO_6AH, chip->shadow_reg_ctrl_6AH);
1072 }
1073
1074 static inline void
1075 snd_azf3328_ctrl_enable_codecs(struct snd_azf3328 *chip, bool enable)
1076 {
1077 snd_azf3328_dbgcodec("codec_enable %d\n", enable);
1078 /* no idea what exactly is being done here, but I strongly assume it's
1079 * PM related */
1080 snd_azf3328_ctrl_reg_6AH_update(
1081 chip, IO_6A_PAUSE_PLAYBACK_BIT8, enable
1082 );
1083 }
1084
1085 static void
1086 snd_azf3328_ctrl_codec_activity(struct snd_azf3328 *chip,
1087 enum snd_azf3328_codec_type codec_type,
1088 bool enable
1089 )
1090 {
1091 struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type];
1092 bool need_change = (codec->running != enable);
1093
1094 snd_azf3328_dbgcodec(
1095 "codec_activity: %s codec, enable %d, need_change %d\n",
1096 codec->name, enable, need_change
1097 );
1098 if (need_change) {
1099 static const struct {
1100 enum snd_azf3328_codec_type other1;
1101 enum snd_azf3328_codec_type other2;
1102 } peer_codecs[3] =
1103 { { AZF_CODEC_CAPTURE, AZF_CODEC_I2S_OUT },
1104 { AZF_CODEC_PLAYBACK, AZF_CODEC_I2S_OUT },
1105 { AZF_CODEC_PLAYBACK, AZF_CODEC_CAPTURE } };
1106 bool call_function;
1107
1108 if (enable)
1109 /* if enable codec, call enable_codecs func
1110 to enable codec supply... */
1111 call_function = 1;
1112 else {
1113 /* ...otherwise call enable_codecs func
1114 (which globally shuts down operation of codecs)
1115 only in case the other codecs are currently
1116 not active either! */
1117 call_function =
1118 ((!chip->codecs[peer_codecs[codec_type].other1]
1119 .running)
1120 && (!chip->codecs[peer_codecs[codec_type].other2]
1121 .running));
1122 }
1123 if (call_function)
1124 snd_azf3328_ctrl_enable_codecs(chip, enable);
1125
1126 /* ...and adjust clock, too
1127 * (reduce noise and power consumption) */
1128 if (!enable)
1129 snd_azf3328_codec_setfmt_lowpower(codec);
1130 codec->running = enable;
1131 }
1132 }
1133
1134 static void
1135 snd_azf3328_codec_setdmaa(struct snd_azf3328_codec_data *codec,
1136 unsigned long addr,
1137 unsigned int period_bytes,
1138 unsigned int buffer_bytes
1139 )
1140 {
1141 snd_azf3328_dbgcallenter();
1142 WARN_ONCE(period_bytes & 1, "odd period length!?\n");
1143 WARN_ONCE(buffer_bytes != 2 * period_bytes,
1144 "missed our input expectations! %u vs. %u\n",
1145 buffer_bytes, period_bytes);
1146 if (!codec->running) {
1147 /* AZF3328 uses a two buffer pointer DMA transfer approach */
1148
1149 unsigned long flags;
1150
1151 /* width 32bit (prevent overflow): */
1152 u32 area_length;
1153 struct codec_setup_io {
1154 u32 dma_start_1;
1155 u32 dma_start_2;
1156 u32 dma_lengths;
1157 } __attribute__((packed)) setup_io;
1158
1159 area_length = buffer_bytes/2;
1160
1161 setup_io.dma_start_1 = addr;
1162 setup_io.dma_start_2 = addr+area_length;
1163
1164 snd_azf3328_dbgcodec(
1165 "setdma: buffers %08x[%u] / %08x[%u], %u, %u\n",
1166 setup_io.dma_start_1, area_length,
1167 setup_io.dma_start_2, area_length,
1168 period_bytes, buffer_bytes);
1169
1170 /* Hmm, are we really supposed to decrement this by 1??
1171 Most definitely certainly not: configuring full length does
1172 work properly (i.e. likely better), and BTW we
1173 violated possibly differing frame sizes with this...
1174
1175 area_length--; |* max. index *|
1176 */
1177
1178 /* build combined I/O buffer length word */
1179 setup_io.dma_lengths = (area_length << 16) | (area_length);
1180
1181 spin_lock_irqsave(codec->lock, flags);
1182 snd_azf3328_codec_outl_multi(
1183 codec, IDX_IO_CODEC_DMA_START_1, &setup_io, 3
1184 );
1185 spin_unlock_irqrestore(codec->lock, flags);
1186 }
1187 snd_azf3328_dbgcallleave();
1188 }
1189
1190 static int
1191 snd_azf3328_pcm_prepare(struct snd_pcm_substream *substream)
1192 {
1193 struct snd_pcm_runtime *runtime = substream->runtime;
1194 struct snd_azf3328_codec_data *codec = runtime->private_data;
1195 #if 0
1196 unsigned int size = snd_pcm_lib_buffer_bytes(substream);
1197 unsigned int count = snd_pcm_lib_period_bytes(substream);
1198 #endif
1199
1200 snd_azf3328_dbgcallenter();
1201
1202 codec->dma_base = runtime->dma_addr;
1203
1204 #if 0
1205 snd_azf3328_codec_setfmt(codec,
1206 runtime->rate,
1207 snd_pcm_format_width(runtime->format),
1208 runtime->channels);
1209 snd_azf3328_codec_setdmaa(codec,
1210 runtime->dma_addr, count, size);
1211 #endif
1212 snd_azf3328_dbgcallleave();
1213 return 0;
1214 }
1215
1216 static int
1217 snd_azf3328_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1218 {
1219 struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
1220 struct snd_pcm_runtime *runtime = substream->runtime;
1221 struct snd_azf3328_codec_data *codec = runtime->private_data;
1222 int result = 0;
1223 u16 flags1;
1224 bool previously_muted = 0;
1225 bool is_main_mixer_playback_codec = (AZF_CODEC_PLAYBACK == codec->type);
1226
1227 snd_azf3328_dbgcalls("snd_azf3328_pcm_trigger cmd %d\n", cmd);
1228
1229 switch (cmd) {
1230 case SNDRV_PCM_TRIGGER_START:
1231 snd_azf3328_dbgcodec("START %s\n", codec->name);
1232
1233 if (is_main_mixer_playback_codec) {
1234 /* mute WaveOut (avoid clicking during setup) */
1235 previously_muted =
1236 snd_azf3328_mixer_set_mute(
1237 chip, IDX_MIXER_WAVEOUT, 1
1238 );
1239 }
1240
1241 snd_azf3328_codec_setfmt(codec,
1242 runtime->rate,
1243 snd_pcm_format_width(runtime->format),
1244 runtime->channels);
1245
1246 spin_lock(codec->lock);
1247 /* first, remember current value: */
1248 flags1 = snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS);
1249
1250 /* stop transfer */
1251 flags1 &= ~DMA_RESUME;
1252 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
1253
1254 /* FIXME: clear interrupts or what??? */
1255 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_IRQTYPE, 0xffff);
1256 spin_unlock(codec->lock);
1257
1258 snd_azf3328_codec_setdmaa(codec, runtime->dma_addr,
1259 snd_pcm_lib_period_bytes(substream),
1260 snd_pcm_lib_buffer_bytes(substream)
1261 );
1262
1263 spin_lock(codec->lock);
1264 #ifdef WIN9X
1265 /* FIXME: enable playback/recording??? */
1266 flags1 |= DMA_RUN_SOMETHING1 | DMA_RUN_SOMETHING2;
1267 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
1268
1269 /* start transfer again */
1270 /* FIXME: what is this value (0x0010)??? */
1271 flags1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
1272 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
1273 #else /* NT4 */
1274 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
1275 0x0000);
1276 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
1277 DMA_RUN_SOMETHING1);
1278 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
1279 DMA_RUN_SOMETHING1 |
1280 DMA_RUN_SOMETHING2);
1281 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
1282 DMA_RESUME |
1283 SOMETHING_ALMOST_ALWAYS_SET |
1284 DMA_EPILOGUE_SOMETHING |
1285 DMA_SOMETHING_ELSE);
1286 #endif
1287 spin_unlock(codec->lock);
1288 snd_azf3328_ctrl_codec_activity(chip, codec->type, 1);
1289
1290 if (is_main_mixer_playback_codec) {
1291 /* now unmute WaveOut */
1292 if (!previously_muted)
1293 snd_azf3328_mixer_set_mute(
1294 chip, IDX_MIXER_WAVEOUT, 0
1295 );
1296 }
1297
1298 snd_azf3328_dbgcodec("STARTED %s\n", codec->name);
1299 break;
1300 case SNDRV_PCM_TRIGGER_RESUME:
1301 snd_azf3328_dbgcodec("RESUME %s\n", codec->name);
1302 /* resume codec if we were active */
1303 spin_lock(codec->lock);
1304 if (codec->running)
1305 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
1306 snd_azf3328_codec_inw(
1307 codec, IDX_IO_CODEC_DMA_FLAGS
1308 ) | DMA_RESUME
1309 );
1310 spin_unlock(codec->lock);
1311 break;
1312 case SNDRV_PCM_TRIGGER_STOP:
1313 snd_azf3328_dbgcodec("STOP %s\n", codec->name);
1314
1315 if (is_main_mixer_playback_codec) {
1316 /* mute WaveOut (avoid clicking during setup) */
1317 previously_muted =
1318 snd_azf3328_mixer_set_mute(
1319 chip, IDX_MIXER_WAVEOUT, 1
1320 );
1321 }
1322
1323 spin_lock(codec->lock);
1324 /* first, remember current value: */
1325 flags1 = snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS);
1326
1327 /* stop transfer */
1328 flags1 &= ~DMA_RESUME;
1329 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
1330
1331 /* hmm, is this really required? we're resetting the same bit
1332 * immediately thereafter... */
1333 flags1 |= DMA_RUN_SOMETHING1;
1334 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
1335
1336 flags1 &= ~DMA_RUN_SOMETHING1;
1337 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
1338 spin_unlock(codec->lock);
1339 snd_azf3328_ctrl_codec_activity(chip, codec->type, 0);
1340
1341 if (is_main_mixer_playback_codec) {
1342 /* now unmute WaveOut */
1343 if (!previously_muted)
1344 snd_azf3328_mixer_set_mute(
1345 chip, IDX_MIXER_WAVEOUT, 0
1346 );
1347 }
1348
1349 snd_azf3328_dbgcodec("STOPPED %s\n", codec->name);
1350 break;
1351 case SNDRV_PCM_TRIGGER_SUSPEND:
1352 snd_azf3328_dbgcodec("SUSPEND %s\n", codec->name);
1353 /* make sure codec is stopped */
1354 snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
1355 snd_azf3328_codec_inw(
1356 codec, IDX_IO_CODEC_DMA_FLAGS
1357 ) & ~DMA_RESUME
1358 );
1359 break;
1360 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1361 snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
1362 break;
1363 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1364 snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
1365 break;
1366 default:
1367 snd_printk(KERN_ERR "FIXME: unknown trigger mode!\n");
1368 return -EINVAL;
1369 }
1370
1371 snd_azf3328_dbgcallleave();
1372 return result;
1373 }
1374
1375 static snd_pcm_uframes_t
1376 snd_azf3328_pcm_pointer(struct snd_pcm_substream *substream
1377 )
1378 {
1379 const struct snd_azf3328_codec_data *codec =
1380 substream->runtime->private_data;
1381 unsigned long result;
1382 snd_pcm_uframes_t frmres;
1383
1384 result = snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_CURRPOS);
1385
1386 /* calculate offset */
1387 #ifdef QUERY_HARDWARE
1388 result -= snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_START_1);
1389 #else
1390 result -= codec->dma_base;
1391 #endif
1392 frmres = bytes_to_frames( substream->runtime, result);
1393 snd_azf3328_dbgcodec("%08li %s @ 0x%8lx, frames %8ld\n",
1394 jiffies, codec->name, result, frmres);
1395 return frmres;
1396 }
1397
1398 /******************************************************************/
1399
1400 #ifdef SUPPORT_GAMEPORT
1401 static inline void
1402 snd_azf3328_gameport_irq_enable(struct snd_azf3328 *chip,
1403 bool enable
1404 )
1405 {
1406 snd_azf3328_io_reg_setb(
1407 chip->game_io+IDX_GAME_HWCONFIG,
1408 GAME_HWCFG_IRQ_ENABLE,
1409 enable
1410 );
1411 }
1412
1413 static inline void
1414 snd_azf3328_gameport_legacy_address_enable(struct snd_azf3328 *chip,
1415 bool enable
1416 )
1417 {
1418 snd_azf3328_io_reg_setb(
1419 chip->game_io+IDX_GAME_HWCONFIG,
1420 GAME_HWCFG_LEGACY_ADDRESS_ENABLE,
1421 enable
1422 );
1423 }
1424
1425 static void
1426 snd_azf3328_gameport_set_counter_frequency(struct snd_azf3328 *chip,
1427 unsigned int freq_cfg
1428 )
1429 {
1430 snd_azf3328_io_reg_setb(
1431 chip->game_io+IDX_GAME_HWCONFIG,
1432 0x02,
1433 (freq_cfg & 1) != 0
1434 );
1435 snd_azf3328_io_reg_setb(
1436 chip->game_io+IDX_GAME_HWCONFIG,
1437 0x04,
1438 (freq_cfg & 2) != 0
1439 );
1440 }
1441
1442 static inline void
1443 snd_azf3328_gameport_axis_circuit_enable(struct snd_azf3328 *chip, bool enable)
1444 {
1445 snd_azf3328_ctrl_reg_6AH_update(
1446 chip, IO_6A_SOMETHING2_GAMEPORT, enable
1447 );
1448 }
1449
1450 static inline void
1451 snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip)
1452 {
1453 /*
1454 * skeleton handler only
1455 * (we do not want axis reading in interrupt handler - too much load!)
1456 */
1457 snd_azf3328_dbggame("gameport irq\n");
1458
1459 /* this should ACK the gameport IRQ properly, hopefully. */
1460 snd_azf3328_game_inw(chip, IDX_GAME_AXIS_VALUE);
1461 }
1462
1463 static int
1464 snd_azf3328_gameport_open(struct gameport *gameport, int mode)
1465 {
1466 struct snd_azf3328 *chip = gameport_get_port_data(gameport);
1467 int res;
1468
1469 snd_azf3328_dbggame("gameport_open, mode %d\n", mode);
1470 switch (mode) {
1471 case GAMEPORT_MODE_COOKED:
1472 case GAMEPORT_MODE_RAW:
1473 res = 0;
1474 break;
1475 default:
1476 res = -1;
1477 break;
1478 }
1479
1480 snd_azf3328_gameport_set_counter_frequency(chip,
1481 GAME_HWCFG_ADC_COUNTER_FREQ_STD);
1482 snd_azf3328_gameport_axis_circuit_enable(chip, (res == 0));
1483
1484 return res;
1485 }
1486
1487 static void
1488 snd_azf3328_gameport_close(struct gameport *gameport)
1489 {
1490 struct snd_azf3328 *chip = gameport_get_port_data(gameport);
1491
1492 snd_azf3328_dbggame("gameport_close\n");
1493 snd_azf3328_gameport_set_counter_frequency(chip,
1494 GAME_HWCFG_ADC_COUNTER_FREQ_1_200);
1495 snd_azf3328_gameport_axis_circuit_enable(chip, 0);
1496 }
1497
1498 static int
1499 snd_azf3328_gameport_cooked_read(struct gameport *gameport,
1500 int *axes,
1501 int *buttons
1502 )
1503 {
1504 struct snd_azf3328 *chip = gameport_get_port_data(gameport);
1505 int i;
1506 u8 val;
1507 unsigned long flags;
1508
1509 if (snd_BUG_ON(!chip))
1510 return 0;
1511
1512 spin_lock_irqsave(&chip->reg_lock, flags);
1513 val = snd_azf3328_game_inb(chip, IDX_GAME_LEGACY_COMPATIBLE);
1514 *buttons = (~(val) >> 4) & 0xf;
1515
1516 /* ok, this one is a bit dirty: cooked_read is being polled by a timer,
1517 * thus we're atomic and cannot actively wait in here
1518 * (which would be useful for us since it probably would be better
1519 * to trigger a measurement in here, then wait a short amount of
1520 * time until it's finished, then read values of _this_ measurement).
1521 *
1522 * Thus we simply resort to reading values if they're available already
1523 * and trigger the next measurement.
1524 */
1525
1526 val = snd_azf3328_game_inb(chip, IDX_GAME_AXES_CONFIG);
1527 if (val & GAME_AXES_SAMPLING_READY) {
1528 for (i = 0; i < ARRAY_SIZE(chip->axes); ++i) {
1529 /* configure the axis to read */
1530 val = (i << 4) | 0x0f;
1531 snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val);
1532
1533 chip->axes[i] = snd_azf3328_game_inw(
1534 chip, IDX_GAME_AXIS_VALUE
1535 );
1536 }
1537 }
1538
1539 /* trigger next sampling of axes, to be evaluated the next time we
1540 * enter this function */
1541
1542 /* for some very, very strange reason we cannot enable
1543 * Measurement Ready monitoring for all axes here,
1544 * at least not when only one joystick connected */
1545 val = 0x03; /* we're able to monitor axes 1 and 2 only */
1546 snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val);
1547
1548 snd_azf3328_game_outw(chip, IDX_GAME_AXIS_VALUE, 0xffff);
1549 spin_unlock_irqrestore(&chip->reg_lock, flags);
1550
1551 for (i = 0; i < ARRAY_SIZE(chip->axes); i++) {
1552 axes[i] = chip->axes[i];
1553 if (axes[i] == 0xffff)
1554 axes[i] = -1;
1555 }
1556
1557 snd_azf3328_dbggame("cooked_read: axes %d %d %d %d buttons %d\n",
1558 axes[0], axes[1], axes[2], axes[3], *buttons
1559 );
1560
1561 return 0;
1562 }
1563
1564 static int __devinit
1565 snd_azf3328_gameport(struct snd_azf3328 *chip, int dev)
1566 {
1567 struct gameport *gp;
1568
1569 chip->gameport = gp = gameport_allocate_port();
1570 if (!gp) {
1571 printk(KERN_ERR "azt3328: cannot alloc memory for gameport\n");
1572 return -ENOMEM;
1573 }
1574
1575 gameport_set_name(gp, "AZF3328 Gameport");
1576 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1577 gameport_set_dev_parent(gp, &chip->pci->dev);
1578 gp->io = chip->game_io;
1579 gameport_set_port_data(gp, chip);
1580
1581 gp->open = snd_azf3328_gameport_open;
1582 gp->close = snd_azf3328_gameport_close;
1583 gp->fuzz = 16; /* seems ok */
1584 gp->cooked_read = snd_azf3328_gameport_cooked_read;
1585
1586 /* DISABLE legacy address: we don't need it! */
1587 snd_azf3328_gameport_legacy_address_enable(chip, 0);
1588
1589 snd_azf3328_gameport_set_counter_frequency(chip,
1590 GAME_HWCFG_ADC_COUNTER_FREQ_1_200);
1591 snd_azf3328_gameport_axis_circuit_enable(chip, 0);
1592
1593 gameport_register_port(chip->gameport);
1594
1595 return 0;
1596 }
1597
1598 static void
1599 snd_azf3328_gameport_free(struct snd_azf3328 *chip)
1600 {
1601 if (chip->gameport) {
1602 gameport_unregister_port(chip->gameport);
1603 chip->gameport = NULL;
1604 }
1605 snd_azf3328_gameport_irq_enable(chip, 0);
1606 }
1607 #else
1608 static inline int
1609 snd_azf3328_gameport(struct snd_azf3328 *chip, int dev) { return -ENOSYS; }
1610 static inline void
1611 snd_azf3328_gameport_free(struct snd_azf3328 *chip) { }
1612 static inline void
1613 snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip)
1614 {
1615 printk(KERN_WARNING "huh, game port IRQ occurred!?\n");
1616 }
1617 #endif /* SUPPORT_GAMEPORT */
1618
1619 /******************************************************************/
1620
1621 static inline void
1622 snd_azf3328_irq_log_unknown_type(u8 which)
1623 {
1624 snd_azf3328_dbgcodec(
1625 "azt3328: unknown IRQ type (%x) occurred, please report!\n",
1626 which
1627 );
1628 }
1629
1630 static inline void
1631 snd_azf3328_pcm_interrupt(const struct snd_azf3328_codec_data *first_codec,
1632 u8 status
1633 )
1634 {
1635 u8 which;
1636 enum snd_azf3328_codec_type codec_type;
1637 const struct snd_azf3328_codec_data *codec = first_codec;
1638
1639 for (codec_type = AZF_CODEC_PLAYBACK;
1640 codec_type <= AZF_CODEC_I2S_OUT;
1641 ++codec_type, ++codec) {
1642
1643 /* skip codec if there's no interrupt for it */
1644 if (!(status & (1 << codec_type)))
1645 continue;
1646
1647 spin_lock(codec->lock);
1648 which = snd_azf3328_codec_inb(codec, IDX_IO_CODEC_IRQTYPE);
1649 /* ack all IRQ types immediately */
1650 snd_azf3328_codec_outb(codec, IDX_IO_CODEC_IRQTYPE, which);
1651 spin_unlock(codec->lock);
1652
1653 if (codec->substream) {
1654 snd_pcm_period_elapsed(codec->substream);
1655 snd_azf3328_dbgcodec("%s period done (#%x), @ %x\n",
1656 codec->name,
1657 which,
1658 snd_azf3328_codec_inl(
1659 codec, IDX_IO_CODEC_DMA_CURRPOS
1660 )
1661 );
1662 } else
1663 printk(KERN_WARNING "azt3328: irq handler problem!\n");
1664 if (which & IRQ_SOMETHING)
1665 snd_azf3328_irq_log_unknown_type(which);
1666 }
1667 }
1668
1669 static irqreturn_t
1670 snd_azf3328_interrupt(int irq, void *dev_id)
1671 {
1672 struct snd_azf3328 *chip = dev_id;
1673 u8 status;
1674 #if DEBUG_CODEC
1675 static unsigned long irq_count;
1676 #endif
1677
1678 status = snd_azf3328_ctrl_inb(chip, IDX_IO_IRQSTATUS);
1679
1680 /* fast path out, to ease interrupt sharing */
1681 if (!(status &
1682 (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_I2S_OUT
1683 |IRQ_GAMEPORT|IRQ_MPU401|IRQ_TIMER)
1684 ))
1685 return IRQ_NONE; /* must be interrupt for another device */
1686
1687 snd_azf3328_dbgcodec(
1688 "irq_count %ld! IDX_IO_IRQSTATUS %04x\n",
1689 irq_count++ /* debug-only */,
1690 status
1691 );
1692
1693 if (status & IRQ_TIMER) {
1694 /* snd_azf3328_dbgcodec("timer %ld\n",
1695 snd_azf3328_codec_inl(chip, IDX_IO_TIMER_VALUE)
1696 & TIMER_VALUE_MASK
1697 ); */
1698 if (chip->timer)
1699 snd_timer_interrupt(chip->timer, chip->timer->sticks);
1700 /* ACK timer */
1701 spin_lock(&chip->reg_lock);
1702 snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x07);
1703 spin_unlock(&chip->reg_lock);
1704 snd_azf3328_dbgcodec("azt3328: timer IRQ\n");
1705 }
1706
1707 if (status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_I2S_OUT))
1708 snd_azf3328_pcm_interrupt(chip->codecs, status);
1709
1710 if (status & IRQ_GAMEPORT)
1711 snd_azf3328_gameport_interrupt(chip);
1712
1713 /* MPU401 has less critical IRQ requirements
1714 * than timer and playback/recording, right? */
1715 if (status & IRQ_MPU401) {
1716 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
1717
1718 /* hmm, do we have to ack the IRQ here somehow?
1719 * If so, then I don't know how yet... */
1720 snd_azf3328_dbgcodec("azt3328: MPU401 IRQ\n");
1721 }
1722 return IRQ_HANDLED;
1723 }
1724
1725 /*****************************************************************/
1726
1727 /* as long as we think we have identical snd_pcm_hardware parameters
1728 for playback, capture and i2s out, we can use the same physical struct
1729 since the struct is simply being copied into a member.
1730 */
1731 static const struct snd_pcm_hardware snd_azf3328_hardware =
1732 {
1733 /* FIXME!! Correct? */
1734 .info = SNDRV_PCM_INFO_MMAP |
1735 SNDRV_PCM_INFO_INTERLEAVED |
1736 SNDRV_PCM_INFO_MMAP_VALID,
1737 .formats = SNDRV_PCM_FMTBIT_S8 |
1738 SNDRV_PCM_FMTBIT_U8 |
1739 SNDRV_PCM_FMTBIT_S16_LE |
1740 SNDRV_PCM_FMTBIT_U16_LE,
1741 .rates = SNDRV_PCM_RATE_5512 |
1742 SNDRV_PCM_RATE_8000_48000 |
1743 SNDRV_PCM_RATE_KNOT,
1744 .rate_min = AZF_FREQ_4000,
1745 .rate_max = AZF_FREQ_66200,
1746 .channels_min = 1,
1747 .channels_max = 2,
1748 .buffer_bytes_max = (64*1024),
1749 .period_bytes_min = 1024,
1750 .period_bytes_max = (32*1024),
1751 /* We simply have two DMA areas (instead of a list of descriptors
1752 such as other cards); I believe that this is a fixed hardware
1753 attribute and there isn't much driver magic to be done to expand it.
1754 Thus indicate that we have at least and at most 2 periods. */
1755 .periods_min = 2,
1756 .periods_max = 2,
1757 /* FIXME: maybe that card actually has a FIFO?
1758 * Hmm, it seems newer revisions do have one, but we still don't know
1759 * its size... */
1760 .fifo_size = 0,
1761 };
1762
1763
1764 static unsigned int snd_azf3328_fixed_rates[] = {
1765 AZF_FREQ_4000,
1766 AZF_FREQ_4800,
1767 AZF_FREQ_5512,
1768 AZF_FREQ_6620,
1769 AZF_FREQ_8000,
1770 AZF_FREQ_9600,
1771 AZF_FREQ_11025,
1772 AZF_FREQ_13240,
1773 AZF_FREQ_16000,
1774 AZF_FREQ_22050,
1775 AZF_FREQ_32000,
1776 AZF_FREQ_44100,
1777 AZF_FREQ_48000,
1778 AZF_FREQ_66200
1779 };
1780
1781 static struct snd_pcm_hw_constraint_list snd_azf3328_hw_constraints_rates = {
1782 .count = ARRAY_SIZE(snd_azf3328_fixed_rates),
1783 .list = snd_azf3328_fixed_rates,
1784 .mask = 0,
1785 };
1786
1787 /*****************************************************************/
1788
1789 static int
1790 snd_azf3328_pcm_open(struct snd_pcm_substream *substream,
1791 enum snd_azf3328_codec_type codec_type
1792 )
1793 {
1794 struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
1795 struct snd_pcm_runtime *runtime = substream->runtime;
1796 struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type];
1797
1798 snd_azf3328_dbgcallenter();
1799 codec->substream = substream;
1800
1801 /* same parameters for all our codecs - at least we think so... */
1802 runtime->hw = snd_azf3328_hardware;
1803
1804 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1805 &snd_azf3328_hw_constraints_rates);
1806 runtime->private_data = codec;
1807 snd_azf3328_dbgcallleave();
1808 return 0;
1809 }
1810
1811 static int
1812 snd_azf3328_pcm_playback_open(struct snd_pcm_substream *substream)
1813 {
1814 return snd_azf3328_pcm_open(substream, AZF_CODEC_PLAYBACK);
1815 }
1816
1817 static int
1818 snd_azf3328_pcm_capture_open(struct snd_pcm_substream *substream)
1819 {
1820 return snd_azf3328_pcm_open(substream, AZF_CODEC_CAPTURE);
1821 }
1822
1823 static int
1824 snd_azf3328_pcm_i2s_out_open(struct snd_pcm_substream *substream)
1825 {
1826 return snd_azf3328_pcm_open(substream, AZF_CODEC_I2S_OUT);
1827 }
1828
1829 static int
1830 snd_azf3328_pcm_close(struct snd_pcm_substream *substream
1831 )
1832 {
1833 struct snd_azf3328_codec_data *codec =
1834 substream->runtime->private_data;
1835
1836 snd_azf3328_dbgcallenter();
1837 codec->substream = NULL;
1838 snd_azf3328_dbgcallleave();
1839 return 0;
1840 }
1841
1842 /******************************************************************/
1843
1844 static struct snd_pcm_ops snd_azf3328_playback_ops = {
1845 .open = snd_azf3328_pcm_playback_open,
1846 .close = snd_azf3328_pcm_close,
1847 .ioctl = snd_pcm_lib_ioctl,
1848 .hw_params = snd_azf3328_hw_params,
1849 .hw_free = snd_azf3328_hw_free,
1850 .prepare = snd_azf3328_pcm_prepare,
1851 .trigger = snd_azf3328_pcm_trigger,
1852 .pointer = snd_azf3328_pcm_pointer
1853 };
1854
1855 static struct snd_pcm_ops snd_azf3328_capture_ops = {
1856 .open = snd_azf3328_pcm_capture_open,
1857 .close = snd_azf3328_pcm_close,
1858 .ioctl = snd_pcm_lib_ioctl,
1859 .hw_params = snd_azf3328_hw_params,
1860 .hw_free = snd_azf3328_hw_free,
1861 .prepare = snd_azf3328_pcm_prepare,
1862 .trigger = snd_azf3328_pcm_trigger,
1863 .pointer = snd_azf3328_pcm_pointer
1864 };
1865
1866 static struct snd_pcm_ops snd_azf3328_i2s_out_ops = {
1867 .open = snd_azf3328_pcm_i2s_out_open,
1868 .close = snd_azf3328_pcm_close,
1869 .ioctl = snd_pcm_lib_ioctl,
1870 .hw_params = snd_azf3328_hw_params,
1871 .hw_free = snd_azf3328_hw_free,
1872 .prepare = snd_azf3328_pcm_prepare,
1873 .trigger = snd_azf3328_pcm_trigger,
1874 .pointer = snd_azf3328_pcm_pointer
1875 };
1876
1877 static int __devinit
1878 snd_azf3328_pcm(struct snd_azf3328 *chip)
1879 {
1880 enum { AZF_PCMDEV_STD, AZF_PCMDEV_I2S_OUT, NUM_AZF_PCMDEVS }; /* pcm devices */
1881
1882 struct snd_pcm *pcm;
1883 int err;
1884
1885 snd_azf3328_dbgcallenter();
1886
1887 err = snd_pcm_new(chip->card, "AZF3328 DSP", AZF_PCMDEV_STD,
1888 1, 1, &pcm);
1889 if (err < 0)
1890 return err;
1891 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1892 &snd_azf3328_playback_ops);
1893 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1894 &snd_azf3328_capture_ops);
1895
1896 pcm->private_data = chip;
1897 pcm->info_flags = 0;
1898 strcpy(pcm->name, chip->card->shortname);
1899 /* same pcm object for playback/capture (see snd_pcm_new() above) */
1900 chip->pcm[AZF_CODEC_PLAYBACK] = pcm;
1901 chip->pcm[AZF_CODEC_CAPTURE] = pcm;
1902
1903 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1904 snd_dma_pci_data(chip->pci),
1905 64*1024, 64*1024);
1906
1907 err = snd_pcm_new(chip->card, "AZF3328 I2S OUT", AZF_PCMDEV_I2S_OUT,
1908 1, 0, &pcm);
1909 if (err < 0)
1910 return err;
1911 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1912 &snd_azf3328_i2s_out_ops);
1913
1914 pcm->private_data = chip;
1915 pcm->info_flags = 0;
1916 strcpy(pcm->name, chip->card->shortname);
1917 chip->pcm[AZF_CODEC_I2S_OUT] = pcm;
1918
1919 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1920 snd_dma_pci_data(chip->pci),
1921 64*1024, 64*1024);
1922
1923 snd_azf3328_dbgcallleave();
1924 return 0;
1925 }
1926
1927 /******************************************************************/
1928
1929 /*** NOTE: the physical timer resolution actually is 1024000 ticks per second
1930 *** (probably derived from main crystal via a divider of 24),
1931 *** but announcing those attributes to user-space would make programs
1932 *** configure the timer to a 1 tick value, resulting in an absolutely fatal
1933 *** timer IRQ storm.
1934 *** Thus I chose to announce a down-scaled virtual timer to the outside and
1935 *** calculate real timer countdown values internally.
1936 *** (the scale factor can be set via module parameter "seqtimer_scaling").
1937 ***/
1938
1939 static int
1940 snd_azf3328_timer_start(struct snd_timer *timer)
1941 {
1942 struct snd_azf3328 *chip;
1943 unsigned long flags;
1944 unsigned int delay;
1945
1946 snd_azf3328_dbgcallenter();
1947 chip = snd_timer_chip(timer);
1948 delay = ((timer->sticks * seqtimer_scaling) - 1) & TIMER_VALUE_MASK;
1949 if (delay < 49) {
1950 /* uhoh, that's not good, since user-space won't know about
1951 * this timing tweak
1952 * (we need to do it to avoid a lockup, though) */
1953
1954 snd_azf3328_dbgtimer("delay was too low (%d)!\n", delay);
1955 delay = 49; /* minimum time is 49 ticks */
1956 }
1957 snd_azf3328_dbgtimer("setting timer countdown value %d\n", delay);
1958 delay |= TIMER_COUNTDOWN_ENABLE | TIMER_IRQ_ENABLE;
1959 spin_lock_irqsave(&chip->reg_lock, flags);
1960 snd_azf3328_ctrl_outl(chip, IDX_IO_TIMER_VALUE, delay);
1961 spin_unlock_irqrestore(&chip->reg_lock, flags);
1962 snd_azf3328_dbgcallleave();
1963 return 0;
1964 }
1965
1966 static int
1967 snd_azf3328_timer_stop(struct snd_timer *timer)
1968 {
1969 struct snd_azf3328 *chip;
1970 unsigned long flags;
1971
1972 snd_azf3328_dbgcallenter();
1973 chip = snd_timer_chip(timer);
1974 spin_lock_irqsave(&chip->reg_lock, flags);
1975 /* disable timer countdown and interrupt */
1976 /* Hmm, should we write TIMER_IRQ_ACK here?
1977 YES indeed, otherwise a rogue timer operation - which prompts
1978 ALSA(?) to call repeated stop() in vain, but NOT start() -
1979 will never end (value 0x03 is kept shown in control byte).
1980 Simply manually poking 0x04 _once_ immediately successfully stops
1981 the hardware/ALSA interrupt activity. */
1982 snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x04);
1983 spin_unlock_irqrestore(&chip->reg_lock, flags);
1984 snd_azf3328_dbgcallleave();
1985 return 0;
1986 }
1987
1988
1989 static int
1990 snd_azf3328_timer_precise_resolution(struct snd_timer *timer,
1991 unsigned long *num, unsigned long *den)
1992 {
1993 snd_azf3328_dbgcallenter();
1994 *num = 1;
1995 *den = 1024000 / seqtimer_scaling;
1996 snd_azf3328_dbgcallleave();
1997 return 0;
1998 }
1999
2000 static struct snd_timer_hardware snd_azf3328_timer_hw = {
2001 .flags = SNDRV_TIMER_HW_AUTO,
2002 .resolution = 977, /* 1000000/1024000 = 0.9765625us */
2003 .ticks = 1024000, /* max tick count, defined by the value register; actually it's not 1024000, but 1048576, but we don't care */
2004 .start = snd_azf3328_timer_start,
2005 .stop = snd_azf3328_timer_stop,
2006 .precise_resolution = snd_azf3328_timer_precise_resolution,
2007 };
2008
2009 static int __devinit
2010 snd_azf3328_timer(struct snd_azf3328 *chip, int device)
2011 {
2012 struct snd_timer *timer = NULL;
2013 struct snd_timer_id tid;
2014 int err;
2015
2016 snd_azf3328_dbgcallenter();
2017 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
2018 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
2019 tid.card = chip->card->number;
2020 tid.device = device;
2021 tid.subdevice = 0;
2022
2023 snd_azf3328_timer_hw.resolution *= seqtimer_scaling;
2024 snd_azf3328_timer_hw.ticks /= seqtimer_scaling;
2025
2026 err = snd_timer_new(chip->card, "AZF3328", &tid, &timer);
2027 if (err < 0)
2028 goto out;
2029
2030 strcpy(timer->name, "AZF3328 timer");
2031 timer->private_data = chip;
2032 timer->hw = snd_azf3328_timer_hw;
2033
2034 chip->timer = timer;
2035
2036 snd_azf3328_timer_stop(timer);
2037
2038 err = 0;
2039
2040 out:
2041 snd_azf3328_dbgcallleave();
2042 return err;
2043 }
2044
2045 /******************************************************************/
2046
2047 static int
2048 snd_azf3328_free(struct snd_azf3328 *chip)
2049 {
2050 if (chip->irq < 0)
2051 goto __end_hw;
2052
2053 /* reset (close) mixer:
2054 * first mute master volume, then reset
2055 */
2056 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1);
2057 snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000);
2058
2059 snd_azf3328_timer_stop(chip->timer);
2060 snd_azf3328_gameport_free(chip);
2061
2062 if (chip->irq >= 0)
2063 synchronize_irq(chip->irq);
2064 __end_hw:
2065 if (chip->irq >= 0)
2066 free_irq(chip->irq, chip);
2067 pci_release_regions(chip->pci);
2068 pci_disable_device(chip->pci);
2069
2070 kfree(chip);
2071 return 0;
2072 }
2073
2074 static int
2075 snd_azf3328_dev_free(struct snd_device *device)
2076 {
2077 struct snd_azf3328 *chip = device->device_data;
2078 return snd_azf3328_free(chip);
2079 }
2080
2081 #if 0
2082 /* check whether a bit can be modified */
2083 static void
2084 snd_azf3328_test_bit(unsigned unsigned reg, int bit)
2085 {
2086 unsigned char val, valoff, valon;
2087
2088 val = inb(reg);
2089
2090 outb(val & ~(1 << bit), reg);
2091 valoff = inb(reg);
2092
2093 outb(val|(1 << bit), reg);
2094 valon = inb(reg);
2095
2096 outb(val, reg);
2097
2098 printk(KERN_DEBUG "reg %04x bit %d: %02x %02x %02x\n",
2099 reg, bit, val, valoff, valon
2100 );
2101 }
2102 #endif
2103
2104 static inline void
2105 snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip)
2106 {
2107 #if DEBUG_MISC
2108 u16 tmp;
2109
2110 snd_azf3328_dbgmisc(
2111 "ctrl_io 0x%lx, game_io 0x%lx, mpu_io 0x%lx, "
2112 "opl3_io 0x%lx, mixer_io 0x%lx, irq %d\n",
2113 chip->ctrl_io, chip->game_io, chip->mpu_io,
2114 chip->opl3_io, chip->mixer_io, chip->irq
2115 );
2116
2117 snd_azf3328_dbgmisc("game %02x %02x %02x %02x %02x %02x\n",
2118 snd_azf3328_game_inb(chip, 0),
2119 snd_azf3328_game_inb(chip, 1),
2120 snd_azf3328_game_inb(chip, 2),
2121 snd_azf3328_game_inb(chip, 3),
2122 snd_azf3328_game_inb(chip, 4),
2123 snd_azf3328_game_inb(chip, 5)
2124 );
2125
2126 for (tmp = 0; tmp < 0x07; tmp += 1)
2127 snd_azf3328_dbgmisc("mpu_io 0x%04x\n", inb(chip->mpu_io + tmp));
2128
2129 for (tmp = 0; tmp <= 0x07; tmp += 1)
2130 snd_azf3328_dbgmisc("0x%02x: game200 0x%04x, game208 0x%04x\n",
2131 tmp, inb(0x200 + tmp), inb(0x208 + tmp));
2132
2133 for (tmp = 0; tmp <= 0x01; tmp += 1)
2134 snd_azf3328_dbgmisc(
2135 "0x%02x: mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, "
2136 "mpu330 0x%04x opl388 0x%04x opl38c 0x%04x\n",
2137 tmp,
2138 inb(0x300 + tmp),
2139 inb(0x310 + tmp),
2140 inb(0x320 + tmp),
2141 inb(0x330 + tmp),
2142 inb(0x388 + tmp),
2143 inb(0x38c + tmp)
2144 );
2145
2146 for (tmp = 0; tmp < AZF_IO_SIZE_CTRL; tmp += 2)
2147 snd_azf3328_dbgmisc("ctrl 0x%02x: 0x%04x\n",
2148 tmp, snd_azf3328_ctrl_inw(chip, tmp)
2149 );
2150
2151 for (tmp = 0; tmp < AZF_IO_SIZE_MIXER; tmp += 2)
2152 snd_azf3328_dbgmisc("mixer 0x%02x: 0x%04x\n",
2153 tmp, snd_azf3328_mixer_inw(chip, tmp)
2154 );
2155 #endif /* DEBUG_MISC */
2156 }
2157
2158 static int __devinit
2159 snd_azf3328_create(struct snd_card *card,
2160 struct pci_dev *pci,
2161 unsigned long device_type,
2162 struct snd_azf3328 **rchip)
2163 {
2164 struct snd_azf3328 *chip;
2165 int err;
2166 static struct snd_device_ops ops = {
2167 .dev_free = snd_azf3328_dev_free,
2168 };
2169 u8 dma_init;
2170 enum snd_azf3328_codec_type codec_type;
2171 struct snd_azf3328_codec_data *codec_setup;
2172
2173 *rchip = NULL;
2174
2175 err = pci_enable_device(pci);
2176 if (err < 0)
2177 return err;
2178
2179 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2180 if (chip == NULL) {
2181 err = -ENOMEM;
2182 goto out_err;
2183 }
2184 spin_lock_init(&chip->reg_lock);
2185 chip->card = card;
2186 chip->pci = pci;
2187 chip->irq = -1;
2188
2189 /* check if we can restrict PCI DMA transfers to 24 bits */
2190 if (pci_set_dma_mask(pci, DMA_BIT_MASK(24)) < 0 ||
2191 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(24)) < 0) {
2192 snd_printk(KERN_ERR "architecture does not support "
2193 "24bit PCI busmaster DMA\n"
2194 );
2195 err = -ENXIO;
2196 goto out_err;
2197 }
2198
2199 err = pci_request_regions(pci, "Aztech AZF3328");
2200 if (err < 0)
2201 goto out_err;
2202
2203 chip->ctrl_io = pci_resource_start(pci, 0);
2204 chip->game_io = pci_resource_start(pci, 1);
2205 chip->mpu_io = pci_resource_start(pci, 2);
2206 chip->opl3_io = pci_resource_start(pci, 3);
2207 chip->mixer_io = pci_resource_start(pci, 4);
2208
2209 codec_setup = &chip->codecs[AZF_CODEC_PLAYBACK];
2210 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_PLAYBACK;
2211 codec_setup->lock = &chip->reg_lock;
2212 codec_setup->type = AZF_CODEC_PLAYBACK;
2213 codec_setup->name = "PLAYBACK";
2214
2215 codec_setup = &chip->codecs[AZF_CODEC_CAPTURE];
2216 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_CAPTURE;
2217 codec_setup->lock = &chip->reg_lock;
2218 codec_setup->type = AZF_CODEC_CAPTURE;
2219 codec_setup->name = "CAPTURE";
2220
2221 codec_setup = &chip->codecs[AZF_CODEC_I2S_OUT];
2222 codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_I2S_OUT;
2223 codec_setup->lock = &chip->reg_lock;
2224 codec_setup->type = AZF_CODEC_I2S_OUT;
2225 codec_setup->name = "I2S_OUT";
2226
2227 if (request_irq(pci->irq, snd_azf3328_interrupt,
2228 IRQF_SHARED, card->shortname, chip)) {
2229 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2230 err = -EBUSY;
2231 goto out_err;
2232 }
2233 chip->irq = pci->irq;
2234 pci_set_master(pci);
2235 synchronize_irq(chip->irq);
2236
2237 snd_azf3328_debug_show_ports(chip);
2238
2239 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2240 if (err < 0)
2241 goto out_err;
2242
2243 /* create mixer interface & switches */
2244 err = snd_azf3328_mixer_new(chip);
2245 if (err < 0)
2246 goto out_err;
2247
2248 /* standard codec init stuff */
2249 /* default DMA init value */
2250 dma_init = DMA_RUN_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE;
2251
2252 for (codec_type = AZF_CODEC_PLAYBACK;
2253 codec_type <= AZF_CODEC_I2S_OUT; ++codec_type) {
2254 struct snd_azf3328_codec_data *codec =
2255 &chip->codecs[codec_type];
2256
2257 /* shutdown codecs to reduce power / noise */
2258 /* have ...ctrl_codec_activity() act properly */
2259 codec->running = 1;
2260 snd_azf3328_ctrl_codec_activity(chip, codec_type, 0);
2261
2262 spin_lock_irq(codec->lock);
2263 snd_azf3328_codec_outb(codec, IDX_IO_CODEC_DMA_FLAGS,
2264 dma_init);
2265 spin_unlock_irq(codec->lock);
2266 }
2267
2268 snd_card_set_dev(card, &pci->dev);
2269
2270 *rchip = chip;
2271
2272 err = 0;
2273 goto out;
2274
2275 out_err:
2276 if (chip)
2277 snd_azf3328_free(chip);
2278 pci_disable_device(pci);
2279
2280 out:
2281 return err;
2282 }
2283
2284 static int __devinit
2285 snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2286 {
2287 static int dev;
2288 struct snd_card *card;
2289 struct snd_azf3328 *chip;
2290 struct snd_opl3 *opl3;
2291 int err;
2292
2293 snd_azf3328_dbgcallenter();
2294 if (dev >= SNDRV_CARDS)
2295 return -ENODEV;
2296 if (!enable[dev]) {
2297 dev++;
2298 return -ENOENT;
2299 }
2300
2301 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
2302 if (err < 0)
2303 return err;
2304
2305 strcpy(card->driver, "AZF3328");
2306 strcpy(card->shortname, "Aztech AZF3328 (PCI168)");
2307
2308 err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip);
2309 if (err < 0)
2310 goto out_err;
2311
2312 card->private_data = chip;
2313
2314 /* chose to use MPU401_HW_AZT2320 ID instead of MPU401_HW_MPU401,
2315 since our hardware ought to be similar, thus use same ID. */
2316 err = snd_mpu401_uart_new(
2317 card, 0,
2318 MPU401_HW_AZT2320, chip->mpu_io, MPU401_INFO_INTEGRATED,
2319 pci->irq, 0, &chip->rmidi
2320 );
2321 if (err < 0) {
2322 snd_printk(KERN_ERR "azf3328: no MPU-401 device at 0x%lx?\n",
2323 chip->mpu_io
2324 );
2325 goto out_err;
2326 }
2327
2328 err = snd_azf3328_timer(chip, 0);
2329 if (err < 0)
2330 goto out_err;
2331
2332 err = snd_azf3328_pcm(chip);
2333 if (err < 0)
2334 goto out_err;
2335
2336 if (snd_opl3_create(card, chip->opl3_io, chip->opl3_io+2,
2337 OPL3_HW_AUTO, 1, &opl3) < 0) {
2338 snd_printk(KERN_ERR "azf3328: no OPL3 device at 0x%lx-0x%lx?\n",
2339 chip->opl3_io, chip->opl3_io+2
2340 );
2341 } else {
2342 /* need to use IDs 1, 2 since ID 0 is snd_azf3328_timer above */
2343 err = snd_opl3_timer_new(opl3, 1, 2);
2344 if (err < 0)
2345 goto out_err;
2346 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
2347 if (err < 0)
2348 goto out_err;
2349 }
2350
2351 opl3->private_data = chip;
2352
2353 sprintf(card->longname, "%s at 0x%lx, irq %i",
2354 card->shortname, chip->ctrl_io, chip->irq);
2355
2356 err = snd_card_register(card);
2357 if (err < 0)
2358 goto out_err;
2359
2360 #ifdef MODULE
2361 printk(KERN_INFO
2362 "azt3328: Sound driver for Aztech AZF3328-based soundcards such as PCI168.\n"
2363 "azt3328: Hardware was completely undocumented, unfortunately.\n"
2364 "azt3328: Feel free to contact andi AT lisas.de for bug reports etc.!\n"
2365 "azt3328: User-scalable sequencer timer set to %dHz (1024000Hz / %d).\n",
2366 1024000 / seqtimer_scaling, seqtimer_scaling);
2367 #endif
2368
2369 snd_azf3328_gameport(chip, dev);
2370
2371 pci_set_drvdata(pci, card);
2372 dev++;
2373
2374 err = 0;
2375 goto out;
2376
2377 out_err:
2378 snd_printk(KERN_ERR "azf3328: something failed, exiting\n");
2379 snd_card_free(card);
2380
2381 out:
2382 snd_azf3328_dbgcallleave();
2383 return err;
2384 }
2385
2386 static void __devexit
2387 snd_azf3328_remove(struct pci_dev *pci)
2388 {
2389 snd_azf3328_dbgcallenter();
2390 snd_card_free(pci_get_drvdata(pci));
2391 pci_set_drvdata(pci, NULL);
2392 snd_azf3328_dbgcallleave();
2393 }
2394
2395 #ifdef CONFIG_PM
2396 static inline void
2397 snd_azf3328_suspend_regs(unsigned long io_addr, unsigned count, u32 *saved_regs)
2398 {
2399 unsigned reg;
2400
2401 for (reg = 0; reg < count; ++reg) {
2402 *saved_regs = inl(io_addr);
2403 snd_azf3328_dbgpm("suspend: io 0x%04lx: 0x%08x\n",
2404 io_addr, *saved_regs);
2405 ++saved_regs;
2406 io_addr += sizeof(*saved_regs);
2407 }
2408 }
2409
2410 static int
2411 snd_azf3328_suspend(struct pci_dev *pci, pm_message_t state)
2412 {
2413 struct snd_card *card = pci_get_drvdata(pci);
2414 struct snd_azf3328 *chip = card->private_data;
2415 u16 *saved_regs_ctrl_u16;
2416
2417 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2418
2419 /* same pcm object for playback/capture */
2420 snd_pcm_suspend_all(chip->pcm[AZF_CODEC_PLAYBACK]);
2421 snd_pcm_suspend_all(chip->pcm[AZF_CODEC_I2S_OUT]);
2422
2423 snd_azf3328_suspend_regs(chip->mixer_io,
2424 ARRAY_SIZE(chip->saved_regs_mixer), chip->saved_regs_mixer);
2425
2426 /* make sure to disable master volume etc. to prevent looping sound */
2427 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1);
2428 snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
2429
2430 snd_azf3328_suspend_regs(chip->ctrl_io,
2431 ARRAY_SIZE(chip->saved_regs_ctrl), chip->saved_regs_ctrl);
2432
2433 /* manually store the one currently relevant write-only reg, too */
2434 saved_regs_ctrl_u16 = (u16 *)chip->saved_regs_ctrl;
2435 saved_regs_ctrl_u16[IDX_IO_6AH / 2] = chip->shadow_reg_ctrl_6AH;
2436
2437 snd_azf3328_suspend_regs(chip->game_io,
2438 ARRAY_SIZE(chip->saved_regs_game), chip->saved_regs_game);
2439 snd_azf3328_suspend_regs(chip->mpu_io,
2440 ARRAY_SIZE(chip->saved_regs_mpu), chip->saved_regs_mpu);
2441 snd_azf3328_suspend_regs(chip->opl3_io,
2442 ARRAY_SIZE(chip->saved_regs_opl3), chip->saved_regs_opl3);
2443
2444 pci_disable_device(pci);
2445 pci_save_state(pci);
2446 pci_set_power_state(pci, pci_choose_state(pci, state));
2447 return 0;
2448 }
2449
2450 static inline void
2451 snd_azf3328_resume_regs(const u32 *saved_regs,
2452 unsigned long io_addr,
2453 unsigned count
2454 )
2455 {
2456 unsigned reg;
2457
2458 for (reg = 0; reg < count; ++reg) {
2459 outl(*saved_regs, io_addr);
2460 snd_azf3328_dbgpm("resume: io 0x%04lx: 0x%08x --> 0x%08x\n",
2461 io_addr, *saved_regs, inl(io_addr));
2462 ++saved_regs;
2463 io_addr += sizeof(*saved_regs);
2464 }
2465 }
2466
2467 static int
2468 snd_azf3328_resume(struct pci_dev *pci)
2469 {
2470 struct snd_card *card = pci_get_drvdata(pci);
2471 const struct snd_azf3328 *chip = card->private_data;
2472
2473 pci_set_power_state(pci, PCI_D0);
2474 pci_restore_state(pci);
2475 if (pci_enable_device(pci) < 0) {
2476 printk(KERN_ERR "azt3328: pci_enable_device failed, "
2477 "disabling device\n");
2478 snd_card_disconnect(card);
2479 return -EIO;
2480 }
2481 pci_set_master(pci);
2482
2483 snd_azf3328_resume_regs(chip->saved_regs_game, chip->game_io,
2484 ARRAY_SIZE(chip->saved_regs_game));
2485 snd_azf3328_resume_regs(chip->saved_regs_mpu, chip->mpu_io,
2486 ARRAY_SIZE(chip->saved_regs_mpu));
2487 snd_azf3328_resume_regs(chip->saved_regs_opl3, chip->opl3_io,
2488 ARRAY_SIZE(chip->saved_regs_opl3));
2489
2490 snd_azf3328_resume_regs(chip->saved_regs_mixer, chip->mixer_io,
2491 ARRAY_SIZE(chip->saved_regs_mixer));
2492
2493 /* unfortunately with 32bit transfers, IDX_MIXER_PLAY_MASTER (0x02)
2494 and IDX_MIXER_RESET (offset 0x00) get touched at the same time,
2495 resulting in a mixer reset condition persisting until _after_
2496 master vol was restored. Thus master vol needs an extra restore. */
2497 outw(((u16 *)chip->saved_regs_mixer)[1], chip->mixer_io + 2);
2498
2499 snd_azf3328_resume_regs(chip->saved_regs_ctrl, chip->ctrl_io,
2500 ARRAY_SIZE(chip->saved_regs_ctrl));
2501
2502 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2503 return 0;
2504 }
2505 #endif /* CONFIG_PM */
2506
2507
2508 static struct pci_driver driver = {
2509 .name = "AZF3328",
2510 .id_table = snd_azf3328_ids,
2511 .probe = snd_azf3328_probe,
2512 .remove = __devexit_p(snd_azf3328_remove),
2513 #ifdef CONFIG_PM
2514 .suspend = snd_azf3328_suspend,
2515 .resume = snd_azf3328_resume,
2516 #endif
2517 };
2518
2519 static int __init
2520 alsa_card_azf3328_init(void)
2521 {
2522 int err;
2523 snd_azf3328_dbgcallenter();
2524 err = pci_register_driver(&driver);
2525 snd_azf3328_dbgcallleave();
2526 return err;
2527 }
2528
2529 static void __exit
2530 alsa_card_azf3328_exit(void)
2531 {
2532 snd_azf3328_dbgcallenter();
2533 pci_unregister_driver(&driver);
2534 snd_azf3328_dbgcallleave();
2535 }
2536
2537 module_init(alsa_card_azf3328_init)
2538 module_exit(alsa_card_azf3328_exit)
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree