1 /*****************************************************************************
3 * ESS Maestro/Maestro-2/Maestro-2E driver for Linux 2.[23].x
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 * (c) Copyright 1999 Alan Cox <alan.cox@linux.org>
21 * Based heavily on SonicVibes.c:
22 * Copyright (C) 1998-1999 Thomas Sailer (sailer@ife.ee.ethz.ch)
24 * Heavily modified by Zach Brown <zab@zabbo.net> based on lunch
25 * with ESS engineers. Many thanks to Howard Kim for providing
26 * contacts and hardware. Honorable mention goes to Eric
27 * Brombaugh for all sorts of things. Best regards to the
28 * proprietors of Hack Central for fine lodging.
31 * /dev/dsp0-3 standard /dev/dsp device, (mostly) OSS compatible
32 * /dev/mixer standard /dev/mixer device, (mostly) OSS compatible
34 * Hardware Description
36 * A working Maestro setup contains the Maestro chip wired to a
37 * codec or 2. In the Maestro we have the APUs, the ASSP, and the
38 * Wavecache. The APUs can be though of as virtual audio routing
39 * channels. They can take data from a number of sources and perform
40 * basic encodings of the data. The wavecache is a storehouse for
41 * PCM data. Typically it deals with PCI and interracts with the
42 * APUs. The ASSP is a wacky DSP like device that ESS is loth
43 * to release docs on. Thankfully it isn't required on the Maestro
44 * until you start doing insane things like FM emulation and surround
45 * encoding. The codecs are almost always AC-97 compliant codecs,
46 * but it appears that early Maestros may have had PT101 (an ESS
47 * part?) wired to them. The only real difference in the Maestro
48 * families is external goop like docking capability, memory for
49 * the ASSP, and initialization differences.
53 * We only drive the APU/Wavecache as typical DACs and drive the
54 * mixers in the codecs. There are 64 APUs. We assign 6 to each
55 * /dev/dsp? device. 2 channels for output, and 4 channels for
58 * Each APU can do a number of things, but we only really use
59 * 3 basic functions. For playback we use them to convert PCM
60 * data fetched over PCI by the wavecahche into analog data that
61 * is handed to the codec. One APU for mono, and a pair for stereo.
62 * When in stereo, the combination of smarts in the APU and Wavecache
63 * decide which wavecache gets the left or right channel.
65 * For record we still use the old overly mono system. For each in
66 * coming channel the data comes in from the codec, through a 'input'
67 * APU, through another rate converter APU, and then into memory via
68 * the wavecache and PCI. If its stereo, we mash it back into LRLR in
69 * software. The pass between the 2 APUs is supposedly what requires us
70 * to have a 512 byte buffer sitting around in wavecache/memory.
72 * The wavecache makes our life even more fun. First off, it can
73 * only address the first 28 bits of PCI address space, making it
74 * useless on quite a few architectures. Secondly, its insane.
75 * It claims to fetch from 4 regions of PCI space, each 4 meg in length.
76 * But that doesn't really work. You can only use 1 region. So all our
77 * allocations have to be in 4meg of each other. Booo. Hiss.
78 * So we have a module parameter, dsps_order, that is the order of
79 * the number of dsps to provide. All their buffer space is allocated
80 * on open time. The sonicvibes OSS routines we inherited really want
81 * power of 2 buffers, so we have all those next to each other, then
82 * 512 byte regions for the recording wavecaches. This ends up
83 * wasting quite a bit of memory. The only fixes I can see would be
84 * getting a kernel allocator that could work in zones, or figuring out
85 * just how to coerce the WP into doing what we want.
87 * The indirection of the various registers means we have to spinlock
88 * nearly all register accesses. We have the main register indirection
89 * like the wave cache, maestro registers, etc. Then we have beasts
90 * like the APU interface that is indirect registers gotten at through
91 * the main maestro indirection. Ouch. We spinlock around the actual
92 * ports on a per card basis. This means spinlock activity at each IO
93 * operation, but the only IO operation clusters are in non critical
94 * paths and it makes the code far easier to follow. Interrupts are
95 * blocked while holding the locks because the int handler has to
96 * get at some of them :(. The mixer interface doesn't, however.
97 * We also have an OSS state lock that is thrown around in a few
100 * This driver has brute force APM suspend support. We catch suspend
101 * notifications and stop all work being done on the chip. Any people
102 * that try between this shutdown and the real suspend operation will
103 * be put to sleep. When we resume we restore our software state on
104 * the chip and wake up the people that were using it. The code thats
105 * being used now is quite dirty and assumes we're on a uni-processor
106 * machine. Much of it will need to be cleaned up for SMP ACPI or
109 * We also pay attention to PCI power management now. The driver
110 * will power down units of the chip that it knows aren't needed.
111 * The WaveProcessor and company are only powered on when people
112 * have /dev/dsp*s open. On removal the driver will
113 * power down the maestro entirely. There could still be
114 * trouble with BIOSen that magically change power states
115 * themselves, but we'll see.
118 * v0.15 - May 21 2001 - Marcus Meissner <mm@caldera.de>
119 * Ported to Linux 2.4 PCI API. Some clean ups, global devs list
120 * removed (now using pci device driver data).
121 * PM needs to be polished still. Bumped version.
122 * (still kind of v0.14) May 13 2001 - Ben Pfaff <pfaffben@msu.edu>
123 * Add support for 978 docking and basic hardware volume control
124 * (still kind of v0.14) Nov 23 - Alan Cox <alan@redhat.com>
125 * Add clocking= for people with seriously warped hardware
126 * (still v0.14) Nov 10 2000 - Bartlomiej Zolnierkiewicz <bkz@linux-ide.org>
127 * add __init to maestro_ac97_init() and maestro_install()
128 * (still based on v0.14) Mar 29 2000 - Zach Brown <zab@redhat.com>
129 * move to 2.3 power management interface, which
130 * required hacking some suspend/resume/check paths
131 * make static compilation work
132 * v0.14 - Jan 28 2000 - Zach Brown <zab@redhat.com>
133 * add PCI power management through ACPI regs.
134 * we now shut down on machine reboot/halt
135 * leave scary PCI config items alone (isa stuff, mostly)
136 * enable 1921s, it seems only mine was broke.
137 * fix swapped left/right pcm dac. har har.
138 * up bob freq, increase buffers, fix pointers at underflow
139 * silly compilation problems
140 * v0.13 - Nov 18 1999 - Zach Brown <zab@redhat.com>
141 * fix nec Versas? man would that be cool.
142 * v0.12 - Nov 12 1999 - Zach Brown <zab@redhat.com>
143 * brown bag volume max fix..
144 * v0.11 - Nov 11 1999 - Zach Brown <zab@redhat.com>
145 * use proper stereo apu decoding, mmap/write should work.
146 * make volume sliders more useful, tweak rate calculation.
147 * fix lame 8bit format reporting bug. duh. apm apu saving buglet also
148 * fix maestro 1 clock freq "bug", remove pt101 support
149 * v0.10 - Oct 28 1999 - Zach Brown <zab@redhat.com>
150 * aha, so, sometimes the WP writes a status word to offset 0
151 * from one of the PCMBARs. rearrange allocation accordingly..
152 * cheers again to Eric for being a good hacker in investigating this.
153 * Jeroen Hoogervorst submits 7500 fix out of nowhere. yay. :)
154 * v0.09 - Oct 23 1999 - Zach Brown <zab@redhat.com>
156 * re-order something such that some 2Es now work. Magic!
157 * new codec reset routine. made some codecs come to life.
158 * fix clear_advance, sync some control with ESS.
159 * now write to all base regs to be paranoid.
160 * v0.08 - Oct 20 1999 - Zach Brown <zab@redhat.com>
161 * Fix initial buflen bug. I am so smart. also smp compiling..
162 * I owe Eric yet another beer: fixed recmask, igain,
163 * muting, and adc sync consistency. Go Team.
164 * v0.07 - Oct 4 1999 - Zach Brown <zab@redhat.com>
165 * tweak adc/dac, formating, and stuff to allow full duplex
166 * allocate dsps memory at open() so we can fit in the wavecache window
167 * fix wavecache braindamage. again. no more scribbling?
168 * fix ess 1921 codec bug on some laptops.
169 * fix dumb pci scanning bug
170 * started 2.3 cleanup, redid spinlocks, little cleanups
171 * v0.06 - Sep 20 1999 - Zach Brown <zab@redhat.com>
172 * fix wavecache thinkos. limit to 1 /dev/dsp.
173 * eric is wearing his thinking toque this week.
174 * spotted apu mode bugs and gain ramping problem
175 * don't touch weird mixer regs, make recmask optional
176 * fixed igain inversion, defaults for mixers, clean up rec_start
177 * make mono recording work.
178 * report subsystem stuff, please send reports.
179 * littles: parallel out, amp now
180 * v0.05 - Sep 17 1999 - Zach Brown <zab@redhat.com>
181 * merged and fixed up Eric's initial recording code
182 * munged format handling to catch misuse, needs rewrite.
183 * revert ring bus init, fixup shared int, add pci busmaster setting
184 * fix mixer oss interface, fix mic mute and recmask
185 * mask off unsupported mixers, reset with all 1s, modularize defaults
186 * make sure bob is running while we need it
187 * got rid of device limit, initial minimal apm hooks
188 * pull out dead code/includes, only allow multimedia/audio maestros
189 * v0.04 - Sep 01 1999 - Zach Brown <zab@redhat.com>
190 * copied memory leak fix from sonicvibes driver
191 * different ac97 reset, play with 2.0 ac97, simplify ring bus setup
192 * bob freq code, region sanity, jitter sync fix; all from Eric
197 * do smart things with ac97 2.0 bits.
201 * it also would be fun to have a mode that would not use pci dma at all
202 * but would copy into the wavecache on board memory and use that
203 * on architectures that don't like the maestro's pci dma ickiness.
206 /*****************************************************************************/
208 #include <linux/module.h>
209 #include <linux/sched.h>
210 #include <linux/smp_lock.h>
211 #include <linux/string.h>
212 #include <linux/ctype.h>
213 #include <linux/ioport.h>
214 #include <linux/delay.h>
215 #include <linux/sound.h>
216 #include <linux/slab.h>
217 #include <linux/soundcard.h>
218 #include <linux/pci.h>
219 #include <linux/spinlock.h>
220 #include <linux/init.h>
221 #include <linux/interrupt.h>
222 #include <linux/poll.h>
223 #include <linux/reboot.h>
224 #include <linux/bitops.h>
225 #include <linux/wait.h>
226 #include <linux/mutex.h>
229 #include <asm/current.h>
232 #include <asm/page.h>
233 #include <asm/uaccess.h>
237 static struct pci_driver maestro_pci_driver;
239 /* --------------------------------------------------------------------- */
245 #define M_printk(args...) {if (debug) printk(args);}
250 /* we try to setup 2^(dsps_order) /dev/dsp devices */
251 static int dsps_order;
252 /* whether or not we mess around with power management */
253 static int use_pm=2; /* set to 1 for force */
254 /* clocking for broken hardware - a few laptops seem to use a 50Khz clock
255 ie insmod with clocking=50000 or so */
257 static int clocking=48000;
259 MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Alan Cox <alan@redhat.com>");
260 MODULE_DESCRIPTION("ESS Maestro Driver");
261 MODULE_LICENSE("GPL");
264 module_param(debug, bool, 0644);
266 module_param(dsps_order, int, 0);
267 module_param(use_pm, int, 0);
268 module_param(clocking, int, 0);
270 /* --------------------------------------------------------------------- */
271 #define DRIVER_VERSION "0.15"
273 #ifndef PCI_VENDOR_ESS
274 #define PCI_VENDOR_ESS 0x125D
275 #define PCI_DEVICE_ID_ESS_ESS1968 0x1968 /* Maestro 2 */
276 #define PCI_DEVICE_ID_ESS_ESS1978 0x1978 /* Maestro 2E */
278 #define PCI_VENDOR_ESS_OLD 0x1285 /* Platform Tech,
279 the people the maestro
281 #define PCI_DEVICE_ID_ESS_ESS0100 0x0100 /* maestro 1 */
282 #endif /* PCI_VENDOR_ESS */
284 #define ESS_CHAN_HARD 0x100
287 #define NEC_VERSA_SUBID1 0x80581033
288 #define NEC_VERSA_SUBID2 0x803c1033
291 /* changed so that I could actually find all the
292 references and fix them up. it's a little more readable now. */
293 #define ESS_FMT_STEREO 0x01
294 #define ESS_FMT_16BIT 0x02
295 #define ESS_FMT_MASK 0x03
296 #define ESS_DAC_SHIFT 0
297 #define ESS_ADC_SHIFT 4
299 #define ESS_STATE_MAGIC 0x125D1968
300 #define ESS_CARD_MAGIC 0x19283746
302 #define DAC_RUNNING 1
303 #define ADC_RUNNING 2
305 #define MAX_DSP_ORDER 2
306 #define MAX_DSPS (1<<MAX_DSP_ORDER)
307 #define NR_DSPS (1<<dsps_order)
311 #define NR_APU_REGS 16
321 /* bits in the acpi masks */
322 #define ACPI_12MHZ ( 1 << 15)
323 #define ACPI_24MHZ ( 1 << 14)
324 #define ACPI_978 ( 1 << 13)
325 #define ACPI_SPDIF ( 1 << 12)
326 #define ACPI_GLUE ( 1 << 11)
327 #define ACPI__10 ( 1 << 10) /* reserved */
328 #define ACPI_PCIINT ( 1 << 9)
329 #define ACPI_HV ( 1 << 8) /* hardware volume */
330 #define ACPI_GPIO ( 1 << 7)
331 #define ACPI_ASSP ( 1 << 6)
332 #define ACPI_SB ( 1 << 5) /* sb emul */
333 #define ACPI_FM ( 1 << 4) /* fm emul */
334 #define ACPI_RB ( 1 << 3) /* ringbus / aclink */
335 #define ACPI_MIDI ( 1 << 2)
336 #define ACPI_GP ( 1 << 1) /* game port */
337 #define ACPI_WP ( 1 << 0) /* wave processor */
339 #define ACPI_ALL (0xffff)
340 #define ACPI_SLEEP (~(ACPI_SPDIF|ACPI_ASSP|ACPI_SB|ACPI_FM| \
341 ACPI_MIDI|ACPI_GP|ACPI_WP))
342 #define ACPI_NONE (ACPI__10)
344 /* these masks indicate which units we care about at
346 static u16 acpi_state_mask[] = {
347 [ACPI_D0] = ACPI_ALL,
348 [ACPI_D1] = ACPI_SLEEP,
349 [ACPI_D2] = ACPI_SLEEP,
350 [ACPI_D3] = ACPI_NONE
353 static char version[] __devinitdata =
354 KERN_INFO "maestro: version " DRIVER_VERSION " time " __TIME__ " " __DATE__ "\n";
358 static const unsigned sample_size[] = { 1, 2, 2, 4 };
359 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
367 static const char *card_names[]={
368 [TYPE_MAESTRO] = "ESS Maestro",
369 [TYPE_MAESTRO2] = "ESS Maestro 2",
370 [TYPE_MAESTRO2E] = "ESS Maestro 2E"
373 static int clock_freq[]={
374 [TYPE_MAESTRO] = (49152000L / 1024L),
375 [TYPE_MAESTRO2] = (50000000L / 1024L),
376 [TYPE_MAESTRO2E] = (50000000L / 1024L)
379 static int maestro_notifier(struct notifier_block *nb, unsigned long event, void *buf);
381 static struct notifier_block maestro_nb = {maestro_notifier, NULL, 0};
383 /* --------------------------------------------------------------------- */
387 /* FIXME: we probably want submixers in here, but only one record pair */
388 u8 apu[6]; /* l/r output, l/r intput converters, l/r input apus */
389 u8 apu_mode[6]; /* Running mode for this APU */
390 u8 apu_pan[6]; /* Panning setup for this APU */
391 u32 apu_base[6]; /* base address for this apu */
392 struct ess_card *card; /* Card info */
394 unsigned int rateadc, ratedac;
395 unsigned char fmt, enable;
399 /* this locks around the oss state in the driver */
401 /* only let 1 be opening at a time */
402 struct mutex open_mutex;
403 wait_queue_head_t open_wait;
406 /* soundcore stuff */
414 /* XXX zab - swptr only in here so that it can be referenced by
415 clear_advance, as far as I can tell :( */
416 unsigned hwptr, swptr;
417 unsigned total_bytes;
419 unsigned error; /* over/underrun */
420 wait_queue_head_t wait;
421 /* redundant, but makes calculations easier */
424 unsigned fragsamples;
427 unsigned ready:1; /* our oss buffers are ready to go */
428 unsigned endcleared:1;
429 unsigned ossfragshift;
431 unsigned subdivision;
432 u16 base; /* Offset for ptr */
435 /* pointer to each dsp?s piece of the apu->src buffer page */
443 /* We keep maestro cards in a linked list */
444 struct ess_card *next;
450 /* as most of this is static,
451 perhaps it should be a pointer to a global struct */
454 int supported_mixers;
457 /* the caller must guarantee arg sanity before calling these */
458 /* int (*read_mixer)(struct ess_card *card, int index);*/
459 void (*write_mixer)(struct ess_card *card,int mixer, unsigned int left,unsigned int right);
460 int (*recmask_io)(struct ess_card *card,int rw,int mask);
461 unsigned int mixer_state[SOUND_MIXER_NRDEVICES];
467 wait_queue_head_t suspend_queue;
469 struct ess_state channels[MAX_DSPS];
470 u16 maestro_map[NR_IDRS]; /* Register map */
471 /* we have to store this junk so that we can come back from a
473 u16 apu_map[NR_APUS][NR_APU_REGS]; /* contents of apu regs */
475 /* this locks around the physical registers on the card */
478 /* memory for this card.. wavecache limited :(*/
482 /* hardware resources */
483 struct pci_dev *pcidev;
493 static void set_mixer(struct ess_card *card,unsigned int mixer, unsigned int val );
522 /* --------------------------------------------------------------------- */
524 static void check_suspend(struct ess_card *card);
526 /* --------------------------------------------------------------------- */
530 * ESS Maestro AC97 codec programming interface.
533 static void maestro_ac97_set(struct ess_card *card, u8 cmd, u16 val)
535 int io = card->iobase;
538 * Wait for the codec bus to be free
545 if(!(inb(io+ESS_AC97_INDEX)&1))
551 outw(val, io+ESS_AC97_DATA);
553 outb(cmd, io+ESS_AC97_INDEX);
557 static u16 maestro_ac97_get(struct ess_card *card, u8 cmd)
559 int io = card->iobase;
566 * Wait for the codec bus to be free
571 if(!(inb(io+ESS_AC97_INDEX)&1))
575 outb(cmd|0x80, io+ESS_AC97_INDEX);
578 while(inb(io+ESS_AC97_INDEX)&1)
583 printk(KERN_ERR "maestro: ac97 codec timeout reading 0x%x.\n",cmd);
587 data=inw(io+ESS_AC97_DATA);
592 /* OSS interface to the ac97s.. */
594 #define AC97_STEREO_MASK (SOUND_MASK_VOLUME|\
595 SOUND_MASK_PCM|SOUND_MASK_LINE|SOUND_MASK_CD|\
596 SOUND_MASK_VIDEO|SOUND_MASK_LINE1|SOUND_MASK_IGAIN)
598 #define AC97_SUPPORTED_MASK (AC97_STEREO_MASK | \
599 SOUND_MASK_BASS|SOUND_MASK_TREBLE|SOUND_MASK_MIC|\
602 #define AC97_RECORD_MASK (SOUND_MASK_MIC|\
603 SOUND_MASK_CD| SOUND_MASK_VIDEO| SOUND_MASK_LINE1| SOUND_MASK_LINE|\
606 #define supported_mixer(CARD,FOO) ( CARD->mix.supported_mixers & (1<<FOO) )
608 /* this table has default mixer values for all OSS mixers.
609 be sure to fill it in if you add oss mixers
610 to anyone's supported mixer defines */
612 static unsigned int mixer_defaults[SOUND_MIXER_NRDEVICES] = {
613 [SOUND_MIXER_VOLUME] = 0x3232,
614 [SOUND_MIXER_BASS] = 0x3232,
615 [SOUND_MIXER_TREBLE] = 0x3232,
616 [SOUND_MIXER_SPEAKER] = 0x3232,
617 [SOUND_MIXER_MIC] = 0x8000, /* annoying */
618 [SOUND_MIXER_LINE] = 0x3232,
619 [SOUND_MIXER_CD] = 0x3232,
620 [SOUND_MIXER_VIDEO] = 0x3232,
621 [SOUND_MIXER_LINE1] = 0x3232,
622 [SOUND_MIXER_PCM] = 0x3232,
623 [SOUND_MIXER_IGAIN] = 0x3232
626 static struct ac97_mixer_hw {
627 unsigned char offset;
629 } ac97_hw[SOUND_MIXER_NRDEVICES]= {
630 [SOUND_MIXER_VOLUME] = {0x02,63},
631 [SOUND_MIXER_BASS] = {0x08,15},
632 [SOUND_MIXER_TREBLE] = {0x08,15},
633 [SOUND_MIXER_SPEAKER] = {0x0a,15},
634 [SOUND_MIXER_MIC] = {0x0e,31},
635 [SOUND_MIXER_LINE] = {0x10,31},
636 [SOUND_MIXER_CD] = {0x12,31},
637 [SOUND_MIXER_VIDEO] = {0x14,31},
638 [SOUND_MIXER_LINE1] = {0x16,31},
639 [SOUND_MIXER_PCM] = {0x18,31},
640 [SOUND_MIXER_IGAIN] = {0x1c,15}
643 #if 0 /* *shrug* removed simply because we never used it.
644 feel free to implement again if needed */
646 /* reads the given OSS mixer from the ac97
647 the caller must have insured that the ac97 knows
648 about that given mixer, and should be holding a
649 spinlock for the card */
650 static int ac97_read_mixer(struct ess_card *card, int mixer)
654 struct ac97_mixer_hw *mh = &ac97_hw[mixer];
656 val = maestro_ac97_get(card, mh->offset);
658 if(AC97_STEREO_MASK & (1<<mixer)) {
659 /* nice stereo mixers .. */
662 left = (val >> 8) & 0x7f;
665 if (mixer == SOUND_MIXER_IGAIN) {
666 right = (right * 100) / mh->scale;
667 left = (left * 100) / mh->scale;
669 right = 100 - ((right * 100) / mh->scale);
670 left = 100 - ((left * 100) / mh->scale);
673 ret = left | (right << 8);
674 } else if (mixer == SOUND_MIXER_SPEAKER) {
675 ret = 100 - ((((val & 0x1e)>>1) * 100) / mh->scale);
676 } else if (mixer == SOUND_MIXER_MIC) {
677 ret = 100 - (((val & 0x1f) * 100) / mh->scale);
678 /* the low bit is optional in the tone sliders and masking
679 it lets is avoid the 0xf 'bypass'.. */
680 } else if (mixer == SOUND_MIXER_BASS) {
681 ret = 100 - ((((val >> 8) & 0xe) * 100) / mh->scale);
682 } else if (mixer == SOUND_MIXER_TREBLE) {
683 ret = 100 - (((val & 0xe) * 100) / mh->scale);
686 M_printk("read mixer %d (0x%x) %x -> %x\n",mixer,mh->offset,val,ret);
692 /* write the OSS encoded volume to the given OSS encoded mixer,
693 again caller's job to make sure all is well in arg land,
694 call with spinlock held */
696 /* linear scale -> log */
697 static unsigned char lin2log[101] =
699 0, 0 , 15 , 23 , 30 , 34 , 38 , 42 , 45 , 47 ,
700 50 , 52 , 53 , 55 , 57 , 58 , 60 , 61 , 62 ,
701 63 , 65 , 66 , 67 , 68 , 69 , 69 , 70 , 71 ,
702 72 , 73 , 73 , 74 , 75 , 75 , 76 , 77 , 77 ,
703 78 , 78 , 79 , 80 , 80 , 81 , 81 , 82 , 82 ,
704 83 , 83 , 84 , 84 , 84 , 85 , 85 , 86 , 86 ,
705 87 , 87 , 87 , 88 , 88 , 88 , 89 , 89 , 89 ,
706 90 , 90 , 90 , 91 , 91 , 91 , 92 , 92 , 92 ,
707 93 , 93 , 93 , 94 , 94 , 94 , 94 , 95 , 95 ,
708 95 , 95 , 96 , 96 , 96 , 96 , 97 , 97 , 97 ,
709 97 , 98 , 98 , 98 , 98 , 99 , 99 , 99 , 99 , 99
712 static void ac97_write_mixer(struct ess_card *card,int mixer, unsigned int left, unsigned int right)
715 struct ac97_mixer_hw *mh = &ac97_hw[mixer];
717 M_printk("wrote mixer %d (0x%x) %d,%d",mixer,mh->offset,left,right);
719 if(AC97_STEREO_MASK & (1<<mixer)) {
720 /* stereo mixers, mute them if we can */
722 if (mixer == SOUND_MIXER_IGAIN) {
723 /* igain's slider is reversed.. */
724 right = (right * mh->scale) / 100;
725 left = (left * mh->scale) / 100;
726 if ((left == 0) && (right == 0))
728 } else if (mixer == SOUND_MIXER_PCM || mixer == SOUND_MIXER_CD) {
729 /* log conversion seems bad for them */
730 if ((left == 0) && (right == 0))
732 right = ((100 - right) * mh->scale) / 100;
733 left = ((100 - left) * mh->scale) / 100;
735 /* log conversion for the stereo controls */
736 if((left == 0) && (right == 0))
738 right = ((100 - lin2log[right]) * mh->scale) / 100;
739 left = ((100 - lin2log[left]) * mh->scale) / 100;
742 val |= (left << 8) | right;
744 } else if (mixer == SOUND_MIXER_SPEAKER) {
745 val = (((100 - left) * mh->scale) / 100) << 1;
746 } else if (mixer == SOUND_MIXER_MIC) {
747 val = maestro_ac97_get(card, mh->offset) & ~0x801f;
748 val |= (((100 - left) * mh->scale) / 100);
749 /* the low bit is optional in the tone sliders and masking
750 it lets is avoid the 0xf 'bypass'.. */
751 } else if (mixer == SOUND_MIXER_BASS) {
752 val = maestro_ac97_get(card , mh->offset) & ~0x0f00;
753 val |= ((((100 - left) * mh->scale) / 100) << 8) & 0x0e00;
754 } else if (mixer == SOUND_MIXER_TREBLE) {
755 val = maestro_ac97_get(card , mh->offset) & ~0x000f;
756 val |= (((100 - left) * mh->scale) / 100) & 0x000e;
759 maestro_ac97_set(card , mh->offset, val);
761 M_printk(" -> %x\n",val);
764 /* the following tables allow us to go from
765 OSS <-> ac97 quickly. */
767 enum ac97_recsettings {
773 AC97_REC_STEREO, /* combination of all enabled outputs.. */
774 AC97_REC_MONO, /*.. or the mono equivalent */
778 static unsigned int ac97_oss_mask[] = {
779 [AC97_REC_MIC] = SOUND_MASK_MIC,
780 [AC97_REC_CD] = SOUND_MASK_CD,
781 [AC97_REC_VIDEO] = SOUND_MASK_VIDEO,
782 [AC97_REC_AUX] = SOUND_MASK_LINE1,
783 [AC97_REC_LINE] = SOUND_MASK_LINE,
784 [AC97_REC_PHONE] = SOUND_MASK_PHONEIN
787 /* indexed by bit position */
788 static unsigned int ac97_oss_rm[] = {
789 [SOUND_MIXER_MIC] = AC97_REC_MIC,
790 [SOUND_MIXER_CD] = AC97_REC_CD,
791 [SOUND_MIXER_VIDEO] = AC97_REC_VIDEO,
792 [SOUND_MIXER_LINE1] = AC97_REC_AUX,
793 [SOUND_MIXER_LINE] = AC97_REC_LINE,
794 [SOUND_MIXER_PHONEIN] = AC97_REC_PHONE
797 /* read or write the recmask
798 the ac97 can really have left and right recording
799 inputs independently set, but OSS doesn't seem to
800 want us to express that to the user.
801 the caller guarantees that we have a supported bit set,
802 and they must be holding the card's spinlock */
804 ac97_recmask_io(struct ess_card *card, int read, int mask)
806 unsigned int val = ac97_oss_mask[ maestro_ac97_get(card, 0x1a) & 0x7 ];
808 if (read) return val;
810 /* oss can have many inputs, maestro can't. try
811 to pick the 'new' one */
813 if (mask != val) mask &= ~val;
816 val = ac97_oss_rm[val];
817 val |= val << 8; /* set both channels */
819 M_printk("maestro: setting ac97 recmask to 0x%x\n",val);
821 maestro_ac97_set(card,0x1a,val);
827 * The Maestro can be wired to a standard AC97 compliant codec
828 * (see www.intel.com for the pdf's on this), or to a PT101 codec
829 * which appears to be the ES1918 (data sheet on the esstech.com.tw site)
831 * The PT101 setup is untested.
834 static u16 __init maestro_ac97_init(struct ess_card *card)
836 u16 vend1, vend2, caps;
838 card->mix.supported_mixers = AC97_SUPPORTED_MASK;
839 card->mix.stereo_mixers = AC97_STEREO_MASK;
840 card->mix.record_sources = AC97_RECORD_MASK;
841 /* card->mix.read_mixer = ac97_read_mixer;*/
842 card->mix.write_mixer = ac97_write_mixer;
843 card->mix.recmask_io = ac97_recmask_io;
845 vend1 = maestro_ac97_get(card, 0x7c);
846 vend2 = maestro_ac97_get(card, 0x7e);
848 caps = maestro_ac97_get(card, 0x00);
850 printk(KERN_INFO "maestro: AC97 Codec detected: v: 0x%2x%2x caps: 0x%x pwr: 0x%x\n",
851 vend1,vend2,caps,maestro_ac97_get(card,0x26) & 0xf);
853 if (! (caps & 0x4) ) {
854 /* no bass/treble nobs */
855 card->mix.supported_mixers &= ~(SOUND_MASK_BASS|SOUND_MASK_TREBLE);
858 /* XXX endianness, dork head. */
859 /* vendor specifc bits.. */
860 switch ((long)(vend1 << 16) | vend2) {
861 case 0x545200ff: /* TriTech */
862 /* no idea what this does */
863 maestro_ac97_set(card,0x2a,0x0001);
864 maestro_ac97_set(card,0x2c,0x0000);
865 maestro_ac97_set(card,0x2c,0xffff);
867 #if 0 /* i thought the problems I was seeing were with
868 the 1921, but apparently they were with the pci board
869 it was on, so this code is commented out.
870 lets see if this holds true. */
871 case 0x83847609: /* ESS 1921 */
872 /* writing to 0xe (mic) or 0x1a (recmask) seems
873 to hang this codec */
874 card->mix.supported_mixers &= ~(SOUND_MASK_MIC);
875 card->mix.record_sources = 0;
876 card->mix.recmask_io = NULL;
877 #if 0 /* don't ask. I have yet to see what these actually do. */
878 maestro_ac97_set(card,0x76,0xABBA); /* o/~ Take a chance on me o/~ */
880 maestro_ac97_set(card,0x78,0x3002);
882 maestro_ac97_set(card,0x78,0x3802);
890 maestro_ac97_set(card, 0x1E, 0x0404);
891 /* null misc stuff */
892 maestro_ac97_set(card, 0x20, 0x0000);
897 #if 0 /* there has been 1 person on the planet with a pt101 that we
898 know of. If they care, they can put this back in :) */
899 static u16 maestro_pt101_init(struct ess_card *card,int iobase)
901 printk(KERN_INFO "maestro: PT101 Codec detected, initializing but _not_ installing mixer device.\n");
903 maestro_ac97_set(iobase, 0x2A, 0x0001);
904 maestro_ac97_set(iobase, 0x2C, 0x0000);
905 maestro_ac97_set(iobase, 0x2C, 0xFFFF);
906 maestro_ac97_set(iobase, 0x10, 0x9F1F);
907 maestro_ac97_set(iobase, 0x12, 0x0808);
908 maestro_ac97_set(iobase, 0x14, 0x9F1F);
909 maestro_ac97_set(iobase, 0x16, 0x9F1F);
910 maestro_ac97_set(iobase, 0x18, 0x0404);
911 maestro_ac97_set(iobase, 0x1A, 0x0000);
912 maestro_ac97_set(iobase, 0x1C, 0x0000);
913 maestro_ac97_set(iobase, 0x02, 0x0404);
914 maestro_ac97_set(iobase, 0x04, 0x0808);
915 maestro_ac97_set(iobase, 0x0C, 0x801F);
916 maestro_ac97_set(iobase, 0x0E, 0x801F);
921 /* this is very magic, and very slow.. */
923 maestro_ac97_reset(int ioaddr, struct pci_dev *pcidev)
929 outw( inw(ioaddr + 0x38) & 0xfffc, ioaddr + 0x38);
930 outw( inw(ioaddr + 0x3a) & 0xfffc, ioaddr + 0x3a);
931 outw( inw(ioaddr + 0x3c) & 0xfffc, ioaddr + 0x3c);
933 /* reset the first codec */
934 outw(0x0000, ioaddr+0x36);
935 save_68 = inw(ioaddr+0x68);
936 pci_read_config_word(pcidev, 0x58, &w); /* something magical with gpio and bus arb. */
937 pci_read_config_dword(pcidev, PCI_SUBSYSTEM_VENDOR_ID, &vend);
940 outw(0xfffe, ioaddr + 0x64); /* tickly gpio 0.. */
941 outw(0x0001, ioaddr + 0x68);
942 outw(0x0000, ioaddr + 0x60);
944 outw(0x0001, ioaddr + 0x60);
947 outw(save_68 | 0x1, ioaddr + 0x68); /* now restore .. */
948 outw( (inw(ioaddr + 0x38) & 0xfffc)|0x1, ioaddr + 0x38);
949 outw( (inw(ioaddr + 0x3a) & 0xfffc)|0x1, ioaddr + 0x3a);
950 outw( (inw(ioaddr + 0x3c) & 0xfffc)|0x1, ioaddr + 0x3c);
952 /* now the second codec */
953 outw(0x0000, ioaddr+0x36);
954 outw(0xfff7, ioaddr + 0x64);
955 save_68 = inw(ioaddr+0x68);
956 outw(0x0009, ioaddr + 0x68);
957 outw(0x0001, ioaddr + 0x60);
959 outw(0x0009, ioaddr + 0x60);
960 mdelay(500); /* .. ouch.. */
961 outw( inw(ioaddr + 0x38) & 0xfffc, ioaddr + 0x38);
962 outw( inw(ioaddr + 0x3a) & 0xfffc, ioaddr + 0x3a);
963 outw( inw(ioaddr + 0x3c) & 0xfffc, ioaddr + 0x3c);
965 #if 0 /* the loop here needs to be much better if we want it.. */
966 M_printk("trying software reset\n");
967 /* try and do a software reset */
968 outb(0x80|0x7c, ioaddr + 0x30);
970 if ((inw(ioaddr+ 0x30) & 1) == 0) {
971 if(inb(ioaddr + 0x32) !=0) break;
973 outb(0x80|0x7d, ioaddr + 0x30);
974 if (((inw(ioaddr+ 0x30) & 1) == 0) && (inb(ioaddr + 0x32) !=0)) break;
975 outb(0x80|0x7f, ioaddr + 0x30);
976 if (((inw(ioaddr+ 0x30) & 1) == 0) && (inb(ioaddr + 0x32) !=0)) break;
980 outb( inb(ioaddr + 0x37) | 0x08, ioaddr + 0x37); /* do a software reset */
981 mdelay(500); /* oh my.. */
982 outb( inb(ioaddr + 0x37) & ~0x08, ioaddr + 0x37);
984 outw( 0x80, ioaddr+0x30);
985 for(w = 0 ; w < 10000; w++) {
986 if((inw(ioaddr + 0x30) & 1) ==0) break;
991 if ( vend == NEC_VERSA_SUBID1 || vend == NEC_VERSA_SUBID2) {
992 /* turn on external amp? */
993 outw(0xf9ff, ioaddr + 0x64);
994 outw(inw(ioaddr+0x68) | 0x600, ioaddr + 0x68);
995 outw(0x0209, ioaddr + 0x60);
998 /* Turn on the 978 docking chip.
999 First frob the "master output enable" bit,
1000 then set most of the playback volume control registers to max. */
1001 outb(inb(ioaddr+0xc0)|(1<<5), ioaddr+0xc0);
1002 outb(0xff, ioaddr+0xc3);
1003 outb(0xff, ioaddr+0xc4);
1004 outb(0xff, ioaddr+0xc6);
1005 outb(0xff, ioaddr+0xc8);
1006 outb(0x3f, ioaddr+0xcf);
1007 outb(0x3f, ioaddr+0xd0);
1010 * Indirect register access. Not all registers are readable so we
1011 * need to keep register state ourselves
1014 #define WRITEABLE_MAP 0xEFFFFF
1015 #define READABLE_MAP 0x64003F
1018 * The Maestro engineers were a little indirection happy. These indirected
1019 * registers themselves include indirect registers at another layer
1022 static void __maestro_write(struct ess_card *card, u16 reg, u16 data)
1024 long ioaddr = card->iobase;
1026 outw(reg, ioaddr+0x02);
1027 outw(data, ioaddr+0x00);
1028 if( reg >= NR_IDRS) printk("maestro: IDR %d out of bounds!\n",reg);
1029 else card->maestro_map[reg]=data;
1033 static void maestro_write(struct ess_state *s, u16 reg, u16 data)
1035 unsigned long flags;
1037 check_suspend(s->card);
1038 spin_lock_irqsave(&s->card->lock,flags);
1040 __maestro_write(s->card,reg,data);
1042 spin_unlock_irqrestore(&s->card->lock,flags);
1045 static u16 __maestro_read(struct ess_card *card, u16 reg)
1047 long ioaddr = card->iobase;
1049 outw(reg, ioaddr+0x02);
1050 return card->maestro_map[reg]=inw(ioaddr+0x00);
1053 static u16 maestro_read(struct ess_state *s, u16 reg)
1055 if(READABLE_MAP & (1<<reg))
1057 unsigned long flags;
1058 check_suspend(s->card);
1059 spin_lock_irqsave(&s->card->lock,flags);
1061 __maestro_read(s->card,reg);
1063 spin_unlock_irqrestore(&s->card->lock,flags);
1065 return s->card->maestro_map[reg];
1069 * These routines handle accessing the second level indirections to the
1074 * The register names are the ones ESS uses (see 104T31.ZIP)
1077 #define IDR0_DATA_PORT 0x00
1078 #define IDR1_CRAM_POINTER 0x01
1079 #define IDR2_CRAM_DATA 0x02
1080 #define IDR3_WAVE_DATA 0x03
1081 #define IDR4_WAVE_PTR_LOW 0x04
1082 #define IDR5_WAVE_PTR_HI 0x05
1083 #define IDR6_TIMER_CTRL 0x06
1084 #define IDR7_WAVE_ROMRAM 0x07
1086 static void apu_index_set(struct ess_card *card, u16 index)
1089 __maestro_write(card, IDR1_CRAM_POINTER, index);
1091 if(__maestro_read(card, IDR1_CRAM_POINTER)==index)
1093 printk(KERN_WARNING "maestro: APU register select failed.\n");
1096 static void apu_data_set(struct ess_card *card, u16 data)
1101 if(__maestro_read(card, IDR0_DATA_PORT)==data)
1103 __maestro_write(card, IDR0_DATA_PORT, data);
1108 * This is the public interface for APU manipulation. It handles the
1109 * interlock to avoid two APU writes in parallel etc. Don't diddle
1110 * directly with the stuff above.
1113 static void apu_set_register(struct ess_state *s, u16 channel, u8 reg, u16 data)
1115 unsigned long flags;
1117 check_suspend(s->card);
1119 if(channel&ESS_CHAN_HARD)
1120 channel&=~ESS_CHAN_HARD;
1124 printk("BAD CHANNEL %d.\n",channel);
1126 channel = s->apu[channel];
1127 /* store based on real hardware apu/reg */
1128 s->card->apu_map[channel][reg]=data;
1132 /* hooray for double indirection!! */
1133 spin_lock_irqsave(&s->card->lock,flags);
1135 apu_index_set(s->card, reg);
1136 apu_data_set(s->card, data);
1138 spin_unlock_irqrestore(&s->card->lock,flags);
1141 static u16 apu_get_register(struct ess_state *s, u16 channel, u8 reg)
1143 unsigned long flags;
1146 check_suspend(s->card);
1148 if(channel&ESS_CHAN_HARD)
1149 channel&=~ESS_CHAN_HARD;
1151 channel = s->apu[channel];
1155 spin_lock_irqsave(&s->card->lock,flags);
1157 apu_index_set(s->card, reg);
1158 v=__maestro_read(s->card, IDR0_DATA_PORT);
1160 spin_unlock_irqrestore(&s->card->lock,flags);
1166 * The wavecache buffers between the APUs and
1170 static void wave_set_register(struct ess_state *s, u16 reg, u16 value)
1172 long ioaddr = s->card->iobase;
1173 unsigned long flags;
1174 check_suspend(s->card);
1176 spin_lock_irqsave(&s->card->lock,flags);
1178 outw(reg, ioaddr+0x10);
1179 outw(value, ioaddr+0x12);
1181 spin_unlock_irqrestore(&s->card->lock,flags);
1184 static u16 wave_get_register(struct ess_state *s, u16 reg)
1186 long ioaddr = s->card->iobase;
1187 unsigned long flags;
1189 check_suspend(s->card);
1191 spin_lock_irqsave(&s->card->lock,flags);
1192 outw(reg, ioaddr+0x10);
1193 value=inw(ioaddr+0x12);
1194 spin_unlock_irqrestore(&s->card->lock,flags);
1199 static void sound_reset(int ioaddr)
1201 outw(0x2000, 0x18+ioaddr);
1203 outw(0x0000, 0x18+ioaddr);
1207 /* sets the play formats of these apus, should be passed the already shifted format */
1208 static void set_apu_fmt(struct ess_state *s, int apu, int mode)
1212 if(!(mode&ESS_FMT_16BIT)) apu_fmt+=0x20;
1213 if((mode&ESS_FMT_STEREO)) apu_fmt+=0x10;
1214 s->apu_mode[apu] = apu_fmt;
1215 s->apu_mode[apu+1] = apu_fmt;
1218 /* this only fixes the output apu mode to be later set by start_dac and
1219 company. output apu modes are set in ess_rec_setup */
1220 static void set_fmt(struct ess_state *s, unsigned char mask, unsigned char data)
1222 s->fmt = (s->fmt & mask) | data;
1223 set_apu_fmt(s, 0, (s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK);
1226 /* this is off by a little bit.. */
1227 static u32 compute_rate(struct ess_state *s, u32 freq)
1229 u32 clock = clock_freq[s->card->card_type];
1231 freq = (freq * clocking)/48000;
1236 return ((freq / clock) <<16 )+
1237 (((freq % clock) << 16) / clock);
1240 static void set_dac_rate(struct ess_state *s, unsigned int rate)
1243 int fmt = (s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK;
1252 if(! (fmt & ESS_FMT_16BIT) && !(fmt & ESS_FMT_STEREO))
1255 /* M_printk("computing dac rate %d with mode %d\n",rate,s->fmt);*/
1257 freq = compute_rate(s, rate);
1259 /* Load the frequency, turn on 6dB */
1260 apu_set_register(s, 0, 2,(apu_get_register(s, 0, 2)&0x00FF)|
1261 ( ((freq&0xFF)<<8)|0x10 ));
1262 apu_set_register(s, 0, 3, freq>>8);
1263 apu_set_register(s, 1, 2,(apu_get_register(s, 1, 2)&0x00FF)|
1264 ( ((freq&0xFF)<<8)|0x10 ));
1265 apu_set_register(s, 1, 3, freq>>8);
1268 static void set_adc_rate(struct ess_state *s, unsigned rate)
1272 /* Sample Rate conversion APUs don't like 0x10000 for their rate */
1280 freq = compute_rate(s, rate);
1282 /* Load the frequency, turn on 6dB */
1283 apu_set_register(s, 2, 2,(apu_get_register(s, 2, 2)&0x00FF)|
1284 ( ((freq&0xFF)<<8)|0x10 ));
1285 apu_set_register(s, 2, 3, freq>>8);
1286 apu_set_register(s, 3, 2,(apu_get_register(s, 3, 2)&0x00FF)|
1287 ( ((freq&0xFF)<<8)|0x10 ));
1288 apu_set_register(s, 3, 3, freq>>8);
1290 /* fix mixer rate at 48khz. and its _must_ be 0x10000. */
1293 apu_set_register(s, 4, 2,(apu_get_register(s, 4, 2)&0x00FF)|
1294 ( ((freq&0xFF)<<8)|0x10 ));
1295 apu_set_register(s, 4, 3, freq>>8);
1296 apu_set_register(s, 5, 2,(apu_get_register(s, 5, 2)&0x00FF)|
1297 ( ((freq&0xFF)<<8)|0x10 ));
1298 apu_set_register(s, 5, 3, freq>>8);
1301 /* Stop our host of recording apus */
1302 static inline void stop_adc(struct ess_state *s)
1304 /* XXX lets hope we don't have to lock around this */
1305 if (! (s->enable & ADC_RUNNING)) return;
1307 s->enable &= ~ADC_RUNNING;
1308 apu_set_register(s, 2, 0, apu_get_register(s, 2, 0)&0xFF0F);
1309 apu_set_register(s, 3, 0, apu_get_register(s, 3, 0)&0xFF0F);
1310 apu_set_register(s, 4, 0, apu_get_register(s, 2, 0)&0xFF0F);
1311 apu_set_register(s, 5, 0, apu_get_register(s, 3, 0)&0xFF0F);
1314 /* stop output apus */
1315 static void stop_dac(struct ess_state *s)
1317 /* XXX have to lock around this? */
1318 if (! (s->enable & DAC_RUNNING)) return;
1320 s->enable &= ~DAC_RUNNING;
1321 apu_set_register(s, 0, 0, apu_get_register(s, 0, 0)&0xFF0F);
1322 apu_set_register(s, 1, 0, apu_get_register(s, 1, 0)&0xFF0F);
1325 static void start_dac(struct ess_state *s)
1328 if ( (s->dma_dac.mapped || s->dma_dac.count > 0) &&
1330 (! (s->enable & DAC_RUNNING)) ) {
1332 s->enable |= DAC_RUNNING;
1334 apu_set_register(s, 0, 0,
1335 (apu_get_register(s, 0, 0)&0xFF0F)|s->apu_mode[0]);
1337 if((s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_STEREO)
1338 apu_set_register(s, 1, 0,
1339 (apu_get_register(s, 1, 0)&0xFF0F)|s->apu_mode[1]);
1343 static void start_adc(struct ess_state *s)
1346 if ((s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
1347 && s->dma_adc.ready && (! (s->enable & ADC_RUNNING)) ) {
1349 s->enable |= ADC_RUNNING;
1350 apu_set_register(s, 2, 0,
1351 (apu_get_register(s, 2, 0)&0xFF0F)|s->apu_mode[2]);
1352 apu_set_register(s, 4, 0,
1353 (apu_get_register(s, 4, 0)&0xFF0F)|s->apu_mode[4]);
1355 if( s->fmt & (ESS_FMT_STEREO << ESS_ADC_SHIFT)) {
1356 apu_set_register(s, 3, 0,
1357 (apu_get_register(s, 3, 0)&0xFF0F)|s->apu_mode[3]);
1358 apu_set_register(s, 5, 0,
1359 (apu_get_register(s, 5, 0)&0xFF0F)|s->apu_mode[5]);
1367 * Native play back driver
1370 /* the mode passed should be already shifted and masked */
1372 ess_play_setup(struct ess_state *ess, int mode, u32 rate, void *buffer, int size)
1379 M_printk("mode=%d rate=%d buf=%p len=%d.\n",
1380 mode, rate, buffer, size);
1382 /* all maestro sizes are in 16bit words */
1385 if(mode&ESS_FMT_STEREO) {
1387 /* only 16/stereo gets size divided */
1388 if(mode&ESS_FMT_16BIT)
1392 for(channel=0; channel <= high_apu; channel++)
1394 pa = virt_to_bus(buffer);
1396 /* set the wavecache control reg */
1397 tmpval = (pa - 0x10) & 0xFFF8;
1398 if(!(mode & ESS_FMT_16BIT)) tmpval |= 4;
1399 if(mode & ESS_FMT_STEREO) tmpval |= 2;
1400 ess->apu_base[channel]=tmpval;
1401 wave_set_register(ess, ess->apu[channel]<<3, tmpval);
1403 pa -= virt_to_bus(ess->card->dmapages);
1406 /* base offset of dma calcs when reading the pointer
1408 if(!channel) ess->dma_dac.base = pa&0xFFFF;
1410 pa|=0x00400000; /* System RAM */
1412 /* XXX the 16bit here might not be needed.. */
1413 if((mode & ESS_FMT_STEREO) && (mode & ESS_FMT_16BIT)) {
1415 pa|=0x00800000; /* Stereo */
1419 /* XXX think about endianess when writing these registers */
1420 M_printk("maestro: ess_play_setup: APU[%d] pa = 0x%x\n", ess->apu[channel], pa);
1421 /* start of sample */
1422 apu_set_register(ess, channel, 4, ((pa>>16)&0xFF)<<8);
1423 apu_set_register(ess, channel, 5, pa&0xFFFF);
1425 apu_set_register(ess, channel, 6, (pa+size)&0xFFFF);
1426 /* setting loop len == sample len */
1427 apu_set_register(ess, channel, 7, size);
1429 /* clear effects/env.. */
1430 apu_set_register(ess, channel, 8, 0x0000);
1431 /* set amp now to 0xd0 (?), low byte is 'amplitude dest'? */
1432 apu_set_register(ess, channel, 9, 0xD000);
1434 /* clear routing stuff */
1435 apu_set_register(ess, channel, 11, 0x0000);
1436 /* dma on, no envelopes, filter to all 1s) */
1437 apu_set_register(ess, channel, 0, 0x400F);
1439 if(mode&ESS_FMT_16BIT)
1440 ess->apu_mode[channel]=0x10;
1442 ess->apu_mode[channel]=0x30;
1444 if(mode&ESS_FMT_STEREO) {
1445 /* set panning: left or right */
1446 apu_set_register(ess, channel, 10, 0x8F00 | (channel ? 0 : 0x10));
1447 ess->apu_mode[channel] += 0x10;
1449 apu_set_register(ess, channel, 10, 0x8F08);
1452 /* clear WP interrupts */
1453 outw(1, ess->card->iobase+0x04);
1454 /* enable WP ints */
1455 outw(inw(ess->card->iobase+0x18)|4, ess->card->iobase+0x18);
1458 set_dac_rate(ess,rate);
1463 * Native record driver
1466 /* again, passed mode is alrady shifted/masked */
1468 ess_rec_setup(struct ess_state *ess, int mode, u32 rate, void *buffer, int size)
1473 M_printk("maestro: ess_rec_setup: mode=%d rate=%d buf=0x%p len=%d.\n",
1474 mode, rate, buffer, size);
1476 /* all maestro sizes are in 16bit words */
1479 /* we're given the full size of the buffer, but
1480 in stereo each channel will only use its half */
1481 if(mode&ESS_FMT_STEREO) {
1486 /* APU assignments: 2 = mono/left SRC
1488 4 = mono/left Input Mixer
1489 5 = right Input Mixer */
1490 for(channel=2;channel<6;channel+=apu_step)
1497 /* data seems to flow from the codec, through an apu into
1498 the 'mixbuf' bit of page, then through the SRC apu
1499 and out to the real 'buffer'. ok. sure. */
1501 if(channel & 0x04) {
1502 /* ok, we're an input mixer going from adc
1503 through the mixbuf to the other apus */
1505 if(!(channel & 0x01)) {
1506 pa = virt_to_bus(ess->mixbuf);
1508 pa = virt_to_bus(ess->mixbuf + (PAGE_SIZE >> 4));
1511 /* we source from a 'magic' apu */
1512 bsize = PAGE_SIZE >> 5; /* half of this channels alloc, in words */
1513 route = 0x14 + (channel - 4); /* parallel in crap, see maestro reg 0xC [8-11] */
1514 ess->apu_mode[channel] = 0x90; /* Input Mixer */
1517 /* we're a rate converter taking
1518 input from the input apus and outputing it to
1520 if(!(channel & 0x01)) {
1521 pa = virt_to_bus(buffer);
1523 /* right channel records its split half.
1524 *2 accommodates for rampant shifting earlier */
1525 pa = virt_to_bus(buffer + size*2);
1528 ess->apu_mode[channel] = 0xB0; /* Sample Rate Converter */
1531 /* get input from inputing apu */
1532 route = channel + 2;
1535 M_printk("maestro: ess_rec_setup: getting pa 0x%x from %d\n",pa,channel);
1537 /* set the wavecache control reg */
1538 tmpval = (pa - 0x10) & 0xFFF8;
1539 ess->apu_base[channel]=tmpval;
1540 wave_set_register(ess, ess->apu[channel]<<3, tmpval);
1542 pa -= virt_to_bus(ess->card->dmapages);
1545 /* base offset of dma calcs when reading the pointer
1547 if(channel==2) ess->dma_adc.base = pa&0xFFFF;
1549 pa|=0x00400000; /* bit 22 -> System RAM */
1551 M_printk("maestro: ess_rec_setup: APU[%d] pa = 0x%x size = 0x%x route = 0x%x\n",
1552 ess->apu[channel], pa, bsize, route);
1554 /* Begin loading the APU */
1555 for(i=0;i<15;i++) /* clear all PBRs */
1556 apu_set_register(ess, channel, i, 0x0000);
1558 apu_set_register(ess, channel, 0, 0x400F);
1560 /* need to enable subgroups.. and we should probably
1561 have different groups for different /dev/dsps.. */
1562 apu_set_register(ess, channel, 2, 0x8);
1564 /* Load the buffer into the wave engine */
1565 apu_set_register(ess, channel, 4, ((pa>>16)&0xFF)<<8);
1566 /* XXX reg is little endian.. */
1567 apu_set_register(ess, channel, 5, pa&0xFFFF);
1568 apu_set_register(ess, channel, 6, (pa+bsize)&0xFFFF);
1569 apu_set_register(ess, channel, 7, bsize);
1571 /* clear effects/env.. */
1572 apu_set_register(ess, channel, 8, 0x00F0);
1574 /* amplitude now? sure. why not. */
1575 apu_set_register(ess, channel, 9, 0x0000);
1577 /* set filter tune, radius, polar pan */
1578 apu_set_register(ess, channel, 10, 0x8F08);
1581 apu_set_register(ess, channel, 11, route);
1584 /* clear WP interrupts */
1585 outw(1, ess->card->iobase+0x04);
1586 /* enable WP ints */
1587 outw(inw(ess->card->iobase+0x18)|4, ess->card->iobase+0x18);
1590 set_adc_rate(ess,rate);
1593 /* --------------------------------------------------------------------- */
1595 static void set_dmaa(struct ess_state *s, unsigned int addr, unsigned int count)
1597 M_printk("set_dmaa??\n");
1600 static void set_dmac(struct ess_state *s, unsigned int addr, unsigned int count)
1602 M_printk("set_dmac??\n");
1605 /* Playback pointer */
1606 static inline unsigned get_dmaa(struct ess_state *s)
1610 offset = apu_get_register(s,0,5);
1612 /* M_printk("dmaa: offset: %d, base: %d\n",offset,s->dma_dac.base); */
1614 offset-=s->dma_dac.base;
1616 return (offset&0xFFFE)<<1; /* hardware is in words */
1619 /* Record pointer */
1620 static inline unsigned get_dmac(struct ess_state *s)
1624 offset = apu_get_register(s,2,5);
1626 /* M_printk("dmac: offset: %d, base: %d\n",offset,s->dma_adc.base); */
1628 /* The offset is an address not a position relative to base */
1629 offset-=s->dma_adc.base;
1631 return (offset&0xFFFE)<<1; /* hardware is in words */
1635 * Meet Bob, the timer...
1638 static irqreturn_t ess_interrupt(int irq, void *dev_id, struct pt_regs *regs);
1640 static void stop_bob(struct ess_state *s)
1642 /* Mask IDR 11,17 */
1643 maestro_write(s, 0x11, maestro_read(s, 0x11)&~1);
1644 maestro_write(s, 0x17, maestro_read(s, 0x17)&~1);
1647 /* eventually we could be clever and limit bob ints
1648 to the frequency at which our smallest duration
1649 chunks may expire */
1650 #define ESS_SYSCLK 50000000
1651 static void start_bob(struct ess_state *s)
1656 /* XXX make freq selector much smarter, see calc_bob_rate */
1659 /* compute ideal interrupt frequency for buffer size & play rate */
1660 /* first, find best prescaler value to match freq */
1661 for(prescale=5;prescale<12;prescale++)
1662 if(freq > (ESS_SYSCLK>>(prescale+9)))
1665 /* next, back off prescaler whilst getting divider into optimum range */
1667 while((prescale > 5) && (divide<32))
1674 /* now fine-tune the divider for best match */
1675 for(;divide<31;divide++)
1676 if(freq >= ((ESS_SYSCLK>>(prescale+9))/(divide+1)))
1679 /* divide = 0 is illegal, but don't let prescale = 4! */
1687 maestro_write(s, 6, 0x9000 | (prescale<<5) | divide); /* set reg */
1689 /* Now set IDR 11/17 */
1690 maestro_write(s, 0x11, maestro_read(s, 0x11)|1);
1691 maestro_write(s, 0x17, maestro_read(s, 0x17)|1);
1693 /* --------------------------------------------------------------------- */
1695 /* this quickly calculates the frequency needed for bob
1696 and sets it if its different than what bob is
1697 currently running at. its called often so
1698 needs to be fairly quick. */
1701 static void calc_bob_rate(struct ess_state *s) {
1702 #if 0 /* this thing tries to set the frequency of bob such that
1703 there are 2 interrupts / buffer walked by the dac/adc. That
1704 is probably very wrong for people who actually care about
1705 mid buffer positioning. it should be calculated as bytes/interrupt
1706 and that needs to be decided :) so for now just use the static 150
1709 unsigned int dac_rate=2,adc_rate=1,newrate;
1710 static int israte=-1;
1712 if (s->dma_dac.fragsize == 0) dac_rate = BOB_MIN;
1714 dac_rate = (2 * s->ratedac * sample_size[(s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK]) /
1715 (s->dma_dac.fragsize) ;
1718 if (s->dma_adc.fragsize == 0) adc_rate = BOB_MIN;
1720 adc_rate = (2 * s->rateadc * sample_size[(s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK]) /
1721 (s->dma_adc.fragsize) ;
1724 if(dac_rate > adc_rate) newrate = adc_rate;
1725 else newrate=dac_rate;
1727 if(newrate > BOB_MAX) newrate = BOB_MAX;
1729 if(newrate < BOB_MIN)
1733 if( israte != newrate) {
1734 printk("dac: %d adc: %d rate: %d\n",dac_rate,adc_rate,israte);
1742 prog_dmabuf(struct ess_state *s, unsigned rec)
1744 struct dmabuf *db = rec ? &s->dma_adc : &s->dma_dac;
1745 unsigned rate = rec ? s->rateadc : s->ratedac;
1746 unsigned bytepersec;
1749 unsigned long flags;
1751 spin_lock_irqsave(&s->lock, flags);
1755 fmt >>= ESS_ADC_SHIFT;
1758 fmt >>= ESS_DAC_SHIFT;
1760 spin_unlock_irqrestore(&s->lock, flags);
1761 fmt &= ESS_FMT_MASK;
1763 db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
1765 /* this algorithm is a little nuts.. where did /1000 come from? */
1766 bytepersec = rate << sample_shift[fmt];
1767 bufs = PAGE_SIZE << db->buforder;
1768 if (db->ossfragshift) {
1769 if ((1000 << db->ossfragshift) < bytepersec)
1770 db->fragshift = ld2(bytepersec/1000);
1772 db->fragshift = db->ossfragshift;
1774 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
1775 if (db->fragshift < 3)
1778 db->numfrag = bufs >> db->fragshift;
1779 while (db->numfrag < 4 && db->fragshift > 3) {
1781 db->numfrag = bufs >> db->fragshift;
1783 db->fragsize = 1 << db->fragshift;
1784 if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
1785 db->numfrag = db->ossmaxfrags;
1786 db->fragsamples = db->fragsize >> sample_shift[fmt];
1787 db->dmasize = db->numfrag << db->fragshift;
1789 M_printk("maestro: setup oss: numfrag: %d fragsize: %d dmasize: %d\n",db->numfrag,db->fragsize,db->dmasize);
1791 memset(db->rawbuf, (fmt & ESS_FMT_16BIT) ? 0 : 0x80, db->dmasize);
1793 spin_lock_irqsave(&s->lock, flags);
1795 ess_rec_setup(s, fmt, s->rateadc, db->rawbuf, db->dmasize);
1797 ess_play_setup(s, fmt, s->ratedac, db->rawbuf, db->dmasize);
1799 spin_unlock_irqrestore(&s->lock, flags);
1805 static __inline__ void
1806 clear_advance(struct ess_state *s)
1808 unsigned char c = ((s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_16BIT) ? 0 : 0x80;
1810 unsigned char *buf = s->dma_dac.rawbuf;
1811 unsigned bsize = s->dma_dac.dmasize;
1812 unsigned bptr = s->dma_dac.swptr;
1813 unsigned len = s->dma_dac.fragsize;
1815 if (bptr + len > bsize) {
1816 unsigned x = bsize - bptr;
1817 memset(buf + bptr, c, x);
1818 /* account for wrapping? */
1822 memset(buf + bptr, c, len);
1825 /* call with spinlock held! */
1827 ess_update_ptr(struct ess_state *s)
1832 /* update ADC pointer */
1833 if (s->dma_adc.ready) {
1834 /* oh boy should this all be re-written. everything in the current code paths think
1835 that the various counters/pointers are expressed in bytes to the user but we have
1836 two apus doing stereo stuff so we fix it up here.. it propagates to all the various
1837 counters from here. */
1838 if ( s->fmt & (ESS_FMT_STEREO << ESS_ADC_SHIFT)) {
1839 hwptr = (get_dmac(s)*2) % s->dma_adc.dmasize;
1841 hwptr = get_dmac(s) % s->dma_adc.dmasize;
1843 diff = (s->dma_adc.dmasize + hwptr - s->dma_adc.hwptr) % s->dma_adc.dmasize;
1844 s->dma_adc.hwptr = hwptr;
1845 s->dma_adc.total_bytes += diff;
1846 s->dma_adc.count += diff;
1847 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1848 wake_up(&s->dma_adc.wait);
1849 if (!s->dma_adc.mapped) {
1850 if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
1852 wrindir(s, SV_CIENABLE, s->enable); */
1854 /* brute force everyone back in sync, sigh */
1855 s->dma_adc.count = 0;
1856 s->dma_adc.swptr = 0;
1857 s->dma_adc.hwptr = 0;
1862 /* update DAC pointer */
1863 if (s->dma_dac.ready) {
1864 hwptr = get_dmaa(s) % s->dma_dac.dmasize;
1865 /* the apu only reports the length it has seen, not the
1866 length of the memory that has been used (the WP
1868 if ( ((s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK) == (ESS_FMT_STEREO|ESS_FMT_16BIT))
1871 diff = (s->dma_dac.dmasize + hwptr - s->dma_dac.hwptr) % s->dma_dac.dmasize;
1872 /* M_printk("updating dac: hwptr: %d diff: %d\n",hwptr,diff);*/
1873 s->dma_dac.hwptr = hwptr;
1874 s->dma_dac.total_bytes += diff;
1875 if (s->dma_dac.mapped) {
1876 s->dma_dac.count += diff;
1877 if (s->dma_dac.count >= (signed)s->dma_dac.fragsize) {
1878 wake_up(&s->dma_dac.wait);
1881 s->dma_dac.count -= diff;
1882 /* M_printk("maestro: ess_update_ptr: diff: %d, count: %d\n", diff, s->dma_dac.count); */
1883 if (s->dma_dac.count <= 0) {
1884 M_printk("underflow! diff: %d count: %d hw: %d sw: %d\n", diff, s->dma_dac.count,
1885 hwptr, s->dma_dac.swptr);
1887 wrindir(s, SV_CIENABLE, s->enable); */
1888 /* XXX how on earth can calling this with the lock held work.. */
1890 /* brute force everyone back in sync, sigh */
1891 s->dma_dac.count = 0;
1892 s->dma_dac.swptr = hwptr;
1894 } else if (s->dma_dac.count <= (signed)s->dma_dac.fragsize && !s->dma_dac.endcleared) {
1896 s->dma_dac.endcleared = 1;
1898 if (s->dma_dac.count + (signed)s->dma_dac.fragsize <= (signed)s->dma_dac.dmasize) {
1899 wake_up(&s->dma_dac.wait);
1900 /* printk("waking up DAC count: %d sw: %d hw: %d\n",s->dma_dac.count, s->dma_dac.swptr,
1908 ess_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1910 struct ess_state *s;
1911 struct ess_card *c = (struct ess_card *)dev_id;
1915 if ( ! (event = inb(c->iobase+0x1A)) )
1918 outw(inw(c->iobase+4)&1, c->iobase+4);
1920 /* M_printk("maestro int: %x\n",event);*/
1924 enum {UP_EVT, DOWN_EVT, MUTE_EVT} vol_evt;
1927 /* Figure out which volume control button was pushed,
1928 based on differences from the default register
1930 x = inb(c->iobase+0x1c);
1931 if (x&1) vol_evt = MUTE_EVT;
1932 else if (((x>>1)&7) > 4) vol_evt = UP_EVT;
1933 else vol_evt = DOWN_EVT;
1935 /* Reset the volume control registers. */
1936 outb(0x88, c->iobase+0x1c);
1937 outb(0x88, c->iobase+0x1d);
1938 outb(0x88, c->iobase+0x1e);
1939 outb(0x88, c->iobase+0x1f);
1941 /* Deal with the button press in a hammer-handed
1942 manner by adjusting the master mixer volume. */
1943 volume = c->mix.mixer_state[0] & 0xff;
1944 if (vol_evt == UP_EVT) {
1949 else if (vol_evt == DOWN_EVT) {
1954 /* vol_evt == MUTE_EVT */
1956 volume = c->dock_mute_vol;
1958 c->dock_mute_vol = volume;
1962 set_mixer (c, 0, (volume << 8) | volume);
1965 /* Ack all the interrupts. */
1966 outb(0xFF, c->iobase+0x1A);
1969 * Update the pointers for all APU's we are running.
1971 for(i=0;i<NR_DSPS;i++)
1974 if(s->dev_audio == -1)
1976 spin_lock(&s->lock);
1978 spin_unlock(&s->lock);
1984 /* --------------------------------------------------------------------- */
1986 static const char invalid_magic[] = KERN_CRIT "maestro: invalid magic value in %s\n";
1988 #define VALIDATE_MAGIC(FOO,MAG) \
1990 if (!(FOO) || (FOO)->magic != MAG) { \
1991 printk(invalid_magic,__FUNCTION__); \
1996 #define VALIDATE_STATE(a) VALIDATE_MAGIC(a,ESS_STATE_MAGIC)
1997 #define VALIDATE_CARD(a) VALIDATE_MAGIC(a,ESS_CARD_MAGIC)
1999 static void set_mixer(struct ess_card *card,unsigned int mixer, unsigned int val )
2001 unsigned int left,right;
2002 /* cleanse input a little */
2003 right = ((val >> 8) & 0xff) ;
2004 left = (val & 0xff) ;
2006 if(right > 100) right = 100;
2007 if(left > 100) left = 100;
2009 card->mix.mixer_state[mixer]=(right << 8) | left;
2010 card->mix.write_mixer(card,mixer,left,right);
2014 mixer_push_state(struct ess_card *card)
2017 for(i = 0 ; i < SOUND_MIXER_NRDEVICES ; i++) {
2018 if( ! supported_mixer(card,i)) continue;
2020 set_mixer(card,i,card->mix.mixer_state[i]);
2024 static int mixer_ioctl(struct ess_card *card, unsigned int cmd, unsigned long arg)
2027 unsigned long flags;
2028 void __user *argp = (void __user *)arg;
2029 int __user *p = argp;
2031 VALIDATE_CARD(card);
2032 if (cmd == SOUND_MIXER_INFO) {
2034 memset(&info, 0, sizeof(info));
2035 strlcpy(info.id, card_names[card->card_type], sizeof(info.id));
2036 strlcpy(info.name, card_names[card->card_type], sizeof(info.name));
2037 info.modify_counter = card->mix.modcnt;
2038 if (copy_to_user(argp, &info, sizeof(info)))
2042 if (cmd == SOUND_OLD_MIXER_INFO) {
2043 _old_mixer_info info;
2044 memset(&info, 0, sizeof(info));
2045 strlcpy(info.id, card_names[card->card_type], sizeof(info.id));
2046 strlcpy(info.name, card_names[card->card_type], sizeof(info.name));
2047 if (copy_to_user(argp, &info, sizeof(info)))
2051 if (cmd == OSS_GETVERSION)
2052 return put_user(SOUND_VERSION, p);
2054 if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int))
2057 if (_IOC_DIR(cmd) == _IOC_READ) {
2058 switch (_IOC_NR(cmd)) {
2059 case SOUND_MIXER_RECSRC: /* give them the current record source */
2061 if(!card->mix.recmask_io) {
2064 spin_lock_irqsave(&card->lock, flags);
2065 val = card->mix.recmask_io(card,1,0);
2066 spin_unlock_irqrestore(&card->lock, flags);
2070 case SOUND_MIXER_DEVMASK: /* give them the supported mixers */
2071 val = card->mix.supported_mixers;
2074 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
2075 val = card->mix.record_sources;
2078 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
2079 val = card->mix.stereo_mixers;
2082 case SOUND_MIXER_CAPS:
2083 val = SOUND_CAP_EXCL_INPUT;
2086 default: /* read a specific mixer */
2089 if ( ! supported_mixer(card,i))
2092 /* do we ever want to touch the hardware? */
2093 /* spin_lock_irqsave(&card->lock, flags);
2094 val = card->mix.read_mixer(card,i);
2095 spin_unlock_irqrestore(&card->lock, flags);*/
2097 val = card->mix.mixer_state[i];
2098 /* M_printk("returned 0x%x for mixer %d\n",val,i);*/
2102 return put_user(val, p);
2105 if (_IOC_DIR(cmd) != (_IOC_WRITE|_IOC_READ))
2110 if (get_user(val, p))
2113 switch (_IOC_NR(cmd)) {
2114 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
2116 if (!card->mix.recmask_io) return -EINVAL;
2118 if(! (val &= card->mix.record_sources)) return -EINVAL;
2120 spin_lock_irqsave(&card->lock, flags);
2121 card->mix.recmask_io(card,0,val);
2122 spin_unlock_irqrestore(&card->lock, flags);
2128 if ( ! supported_mixer(card,i))
2131 spin_lock_irqsave(&card->lock, flags);
2132 set_mixer(card,i,val);
2133 spin_unlock_irqrestore(&card->lock, flags);
2139 /* --------------------------------------------------------------------- */
2140 static int ess_open_mixdev(struct inode *inode, struct file *file)
2142 unsigned int minor = iminor(inode);
2143 struct ess_card *card = NULL;
2144 struct pci_dev *pdev = NULL;
2145 struct pci_driver *drvr;
2147 while ((pdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
2148 drvr = pci_dev_driver (pdev);
2149 if (drvr == &maestro_pci_driver) {
2150 card = (struct ess_card*)pci_get_drvdata (pdev);
2153 if (card->dev_mixer == minor)
2159 file->private_data = card;
2160 return nonseekable_open(inode, file);
2163 static int ess_release_mixdev(struct inode *inode, struct file *file)
2165 struct ess_card *card = (struct ess_card *)file->private_data;
2167 VALIDATE_CARD(card);
2172 static int ess_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
2174 struct ess_card *card = (struct ess_card *)file->private_data;
2176 VALIDATE_CARD(card);
2178 return mixer_ioctl(card, cmd, arg);
2181 static /*const*/ struct file_operations ess_mixer_fops = {
2182 .owner = THIS_MODULE,
2183 .llseek = no_llseek,
2184 .ioctl = ess_ioctl_mixdev,
2185 .open = ess_open_mixdev,
2186 .release = ess_release_mixdev,
2189 /* --------------------------------------------------------------------- */
2191 static int drain_dac(struct ess_state *s, int nonblock)
2193 DECLARE_WAITQUEUE(wait,current);
2194 unsigned long flags;
2198 if (s->dma_dac.mapped || !s->dma_dac.ready)
2200 current->state = TASK_INTERRUPTIBLE;
2201 add_wait_queue(&s->dma_dac.wait, &wait);
2203 /* XXX uhm.. questionable locking*/
2204 spin_lock_irqsave(&s->lock, flags);
2205 count = s->dma_dac.count;
2206 spin_unlock_irqrestore(&s->lock, flags);
2209 if (signal_pending(current))
2212 remove_wait_queue(&s->dma_dac.wait, &wait);
2213 current->state = TASK_RUNNING;
2216 tmo = (count * HZ) / s->ratedac;
2217 tmo >>= sample_shift[(s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK];
2218 /* XXX this is just broken. someone is waking us up alot, or schedule_timeout is broken.
2219 or something. who cares. - zach */
2220 if (!schedule_timeout(tmo ? tmo : 1) && tmo)
2221 M_printk(KERN_DEBUG "maestro: dma timed out?? %ld\n",jiffies);
2223 remove_wait_queue(&s->dma_dac.wait, &wait);
2224 current->state = TASK_RUNNING;
2225 if (signal_pending(current))
2226 return -ERESTARTSYS;
2230 /* --------------------------------------------------------------------- */
2231 /* Zach sez: "god this is gross.." */
2233 comb_stereo(unsigned char *real_buffer,unsigned char *tmp_buffer, int offset,
2234 int count, int bufsize)
2236 /* No such thing as stereo recording, so we
2237 use dual input mixers. which means we have to
2238 combine mono to stereo buffer. yuck.
2240 but we don't have to be able to work a byte at a time..*/
2242 unsigned char *so,*left,*right;
2246 left = real_buffer + offset;
2247 right = real_buffer + bufsize/2 + offset;
2249 /* M_printk("comb_stereo writing %d to %p from %p and %p, offset: %d size: %d\n",count/2, tmp_buffer,left,right,offset,bufsize);*/
2251 for(i=count/4; i ; i--) {
2252 (*(so+2)) = *(right++);
2253 (*(so+3)) = *(right++);
2255 (*(so+1)) = *(left++);
2262 /* in this loop, dma_adc.count signifies the amount of data thats waiting
2263 to be copied to the user's buffer. it is filled by the interrupt
2264 handler and drained by this loop. */
2266 ess_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
2268 struct ess_state *s = (struct ess_state *)file->private_data;
2270 unsigned long flags;
2273 unsigned char *combbuf = NULL;
2276 if (s->dma_adc.mapped)
2278 if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
2280 if (!access_ok(VERIFY_WRITE, buffer, count))
2282 if(!(combbuf = kmalloc(count,GFP_KERNEL)))
2289 spin_lock_irqsave(&s->lock, flags);
2290 /* remember, all these things are expressed in bytes to be
2291 sent to the user.. hence the evil / 2 down below */
2292 swptr = s->dma_adc.swptr;
2293 cnt = s->dma_adc.dmasize-swptr;
2294 if (s->dma_adc.count < cnt)
2295 cnt = s->dma_adc.count;
2296 spin_unlock_irqrestore(&s->lock, flags);
2301 if ( cnt > 0 ) cnt &= ~3;
2305 if (file->f_flags & O_NONBLOCK)
2307 ret = ret ? ret : -EAGAIN;
2308 goto rec_return_free;
2310 if (!interruptible_sleep_on_timeout(&s->dma_adc.wait, HZ)) {
2311 if(! s->card->in_suspend) printk(KERN_DEBUG "maestro: read: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
2312 s->dma_adc.dmasize, s->dma_adc.fragsize, s->dma_adc.count,
2313 s->dma_adc.hwptr, s->dma_adc.swptr);
2315 spin_lock_irqsave(&s->lock, flags);
2316 set_dmac(s, virt_to_bus(s->dma_adc.rawbuf), s->dma_adc.numfrag << s->dma_adc.fragshift);
2317 /* program enhanced mode registers */
2319 /* wrindir(s, SV_CIDMACBASECOUNT1, (s->dma_adc.fragsamples-1) >> 8);
2320 wrindir(s, SV_CIDMACBASECOUNT0, s->dma_adc.fragsamples-1); */
2321 s->dma_adc.count = s->dma_adc.hwptr = s->dma_adc.swptr = 0;
2322 spin_unlock_irqrestore(&s->lock, flags);
2324 if (signal_pending(current))
2326 ret = ret ? ret : -ERESTARTSYS;
2327 goto rec_return_free;
2332 if(s->fmt & (ESS_FMT_STEREO << ESS_ADC_SHIFT)) {
2333 /* swptr/2 so that we know the real offset in each apu's buffer */
2334 comb_stereo(s->dma_adc.rawbuf,combbuf,swptr/2,cnt,s->dma_adc.dmasize);
2335 if (copy_to_user(buffer, combbuf, cnt)) {
2336 ret = ret ? ret : -EFAULT;
2337 goto rec_return_free;
2340 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
2341 ret = ret ? ret : -EFAULT;
2342 goto rec_return_free;
2346 swptr = (swptr + cnt) % s->dma_adc.dmasize;
2347 spin_lock_irqsave(&s->lock, flags);
2348 s->dma_adc.swptr = swptr;
2349 s->dma_adc.count -= cnt;
2350 spin_unlock_irqrestore(&s->lock, flags);
2363 ess_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
2365 struct ess_state *s = (struct ess_state *)file->private_data;
2367 unsigned long flags;
2372 if (s->dma_dac.mapped)
2374 if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
2376 if (!access_ok(VERIFY_READ, buffer, count))
2383 spin_lock_irqsave(&s->lock, flags);
2385 if (s->dma_dac.count < 0) {
2386 s->dma_dac.count = 0;
2387 s->dma_dac.swptr = s->dma_dac.hwptr;
2389 swptr = s->dma_dac.swptr;
2391 cnt = s->dma_dac.dmasize-swptr;
2393 if (s->dma_dac.count + cnt > s->dma_dac.dmasize)
2394 cnt = s->dma_dac.dmasize - s->dma_dac.count;
2396 spin_unlock_irqrestore(&s->lock, flags);
2403 if (file->f_flags & O_NONBLOCK) {
2404 if(!ret) ret = -EAGAIN;
2407 if (!interruptible_sleep_on_timeout(&s->dma_dac.wait, HZ)) {
2408 if(! s->card->in_suspend) printk(KERN_DEBUG "maestro: write: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
2409 s->dma_dac.dmasize, s->dma_dac.fragsize, s->dma_dac.count,
2410 s->dma_dac.hwptr, s->dma_dac.swptr);
2412 spin_lock_irqsave(&s->lock, flags);
2413 set_dmaa(s, virt_to_bus(s->dma_dac.rawbuf), s->dma_dac.numfrag << s->dma_dac.fragshift);
2414 /* program enhanced mode registers */
2415 /* wrindir(s, SV_CIDMAABASECOUNT1, (s->dma_dac.fragsamples-1) >> 8);
2416 wrindir(s, SV_CIDMAABASECOUNT0, s->dma_dac.fragsamples-1); */
2418 s->dma_dac.count = s->dma_dac.hwptr = s->dma_dac.swptr = 0;
2419 spin_unlock_irqrestore(&s->lock, flags);
2421 if (signal_pending(current)) {
2422 if (!ret) ret = -ERESTARTSYS;
2427 if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt)) {
2428 if (!ret) ret = -EFAULT;
2431 /* printk("wrote %d bytes at sw: %d cnt: %d while hw: %d\n",cnt, swptr, s->dma_dac.count, s->dma_dac.hwptr);*/
2433 swptr = (swptr + cnt) % s->dma_dac.dmasize;
2435 spin_lock_irqsave(&s->lock, flags);
2436 s->dma_dac.swptr = swptr;
2437 s->dma_dac.count += cnt;
2438 s->dma_dac.endcleared = 0;
2439 spin_unlock_irqrestore(&s->lock, flags);
2449 /* No kernel lock - we have our own spinlock */
2450 static unsigned int ess_poll(struct file *file, struct poll_table_struct *wait)
2452 struct ess_state *s = (struct ess_state *)file->private_data;
2453 unsigned long flags;
2454 unsigned int mask = 0;
2458 /* In 0.14 prog_dmabuf always returns success anyway ... */
2459 if (file->f_mode & FMODE_WRITE) {
2460 if (!s->dma_dac.ready && prog_dmabuf(s, 0))
2463 if (file->f_mode & FMODE_READ) {
2464 if (!s->dma_adc.ready && prog_dmabuf(s, 1))
2468 if (file->f_mode & FMODE_WRITE)
2469 poll_wait(file, &s->dma_dac.wait, wait);
2470 if (file->f_mode & FMODE_READ)
2471 poll_wait(file, &s->dma_adc.wait, wait);
2472 spin_lock_irqsave(&s->lock, flags);
2474 if (file->f_mode & FMODE_READ) {
2475 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
2476 mask |= POLLIN | POLLRDNORM;
2478 if (file->f_mode & FMODE_WRITE) {
2479 if (s->dma_dac.mapped) {
2480 if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
2481 mask |= POLLOUT | POLLWRNORM;
2483 if ((signed)s->dma_dac.dmasize >= s->dma_dac.count + (signed)s->dma_dac.fragsize)
2484 mask |= POLLOUT | POLLWRNORM;
2487 spin_unlock_irqrestore(&s->lock, flags);
2491 static int ess_mmap(struct file *file, struct vm_area_struct *vma)
2493 struct ess_state *s = (struct ess_state *)file->private_data;
2500 if (vma->vm_flags & VM_WRITE) {
2501 if ((ret = prog_dmabuf(s, 1)) != 0)
2506 /* if we can have the wp/wc do the combining
2507 we can turn this back on. */
2508 if (vma->vm_flags & VM_READ) {
2509 if ((ret = prog_dmabuf(s, 0)) != 0)
2516 if (vma->vm_pgoff != 0)
2518 size = vma->vm_end - vma->vm_start;
2519 if (size > (PAGE_SIZE << db->buforder))
2522 if (remap_pfn_range(vma, vma->vm_start,
2523 virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
2524 size, vma->vm_page_prot))
2533 static int ess_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
2535 struct ess_state *s = (struct ess_state *)file->private_data;
2536 unsigned long flags;
2537 audio_buf_info abinfo;
2539 int val, mapped, ret;
2540 unsigned char fmtm, fmtd;
2541 void __user *argp = (void __user *)arg;
2542 int __user *p = argp;
2544 /* printk("maestro: ess_ioctl: cmd %d\n", cmd);*/
2547 mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
2548 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
2550 case OSS_GETVERSION:
2551 return put_user(SOUND_VERSION, p);
2553 case SNDCTL_DSP_SYNC:
2554 if (file->f_mode & FMODE_WRITE)
2555 return drain_dac(s, file->f_flags & O_NONBLOCK);
2558 case SNDCTL_DSP_SETDUPLEX:
2562 case SNDCTL_DSP_GETCAPS:
2563 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
2565 case SNDCTL_DSP_RESET:
2566 if (file->f_mode & FMODE_WRITE) {
2568 synchronize_irq(s->card->pcidev->irq);
2569 s->dma_dac.swptr = s->dma_dac.hwptr = s->dma_dac.count = s->dma_dac.total_bytes = 0;
2571 if (file->f_mode & FMODE_READ) {
2573 synchronize_irq(s->card->pcidev->irq);
2574 s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
2578 case SNDCTL_DSP_SPEED:
2579 if (get_user(val, p))
2582 if (file->f_mode & FMODE_READ) {
2584 s->dma_adc.ready = 0;
2585 set_adc_rate(s, val);
2587 if (file->f_mode & FMODE_WRITE) {
2589 s->dma_dac.ready = 0;
2590 set_dac_rate(s, val);
2593 return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
2595 case SNDCTL_DSP_STEREO:
2596 if (get_user(val, p))
2600 if (file->f_mode & FMODE_READ) {
2602 s->dma_adc.ready = 0;
2604 fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT;
2606 fmtm &= ~(ESS_FMT_STEREO << ESS_ADC_SHIFT);
2608 if (file->f_mode & FMODE_WRITE) {
2610 s->dma_dac.ready = 0;
2612 fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT;
2614 fmtm &= ~(ESS_FMT_STEREO << ESS_DAC_SHIFT);
2616 set_fmt(s, fmtm, fmtd);
2619 case SNDCTL_DSP_CHANNELS:
2620 if (get_user(val, p))
2625 if (file->f_mode & FMODE_READ) {
2627 s->dma_adc.ready = 0;
2629 fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT;
2631 fmtm &= ~(ESS_FMT_STEREO << ESS_ADC_SHIFT);
2633 if (file->f_mode & FMODE_WRITE) {
2635 s->dma_dac.ready = 0;
2637 fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT;
2639 fmtm &= ~(ESS_FMT_STEREO << ESS_DAC_SHIFT);
2641 set_fmt(s, fmtm, fmtd);
2643 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_STEREO << ESS_ADC_SHIFT)
2644 : (ESS_FMT_STEREO << ESS_DAC_SHIFT))) ? 2 : 1, p);
2646 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
2647 return put_user(AFMT_U8|AFMT_S16_LE, p);
2649 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
2650 if (get_user(val, p))
2652 if (val != AFMT_QUERY) {
2655 if (file->f_mode & FMODE_READ) {
2657 s->dma_adc.ready = 0;
2658 /* fixed at 16bit for now */
2659 fmtd |= ESS_FMT_16BIT << ESS_ADC_SHIFT;
2661 if (val == AFMT_S16_LE)
2662 fmtd |= ESS_FMT_16BIT << ESS_ADC_SHIFT;
2664 fmtm &= ~(ESS_FMT_16BIT << ESS_ADC_SHIFT);
2667 if (file->f_mode & FMODE_WRITE) {
2669 s->dma_dac.ready = 0;
2670 if (val == AFMT_S16_LE)
2671 fmtd |= ESS_FMT_16BIT << ESS_DAC_SHIFT;
2673 fmtm &= ~(ESS_FMT_16BIT << ESS_DAC_SHIFT);
2675 set_fmt(s, fmtm, fmtd);
2677 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ?
2678 (ESS_FMT_16BIT << ESS_ADC_SHIFT)
2679 : (ESS_FMT_16BIT << ESS_DAC_SHIFT))) ?
2684 case SNDCTL_DSP_POST:
2687 case SNDCTL_DSP_GETTRIGGER:
2689 if ((file->f_mode & FMODE_READ) && (s->enable & ADC_RUNNING))
2690 val |= PCM_ENABLE_INPUT;
2691 if ((file->f_mode & FMODE_WRITE) && (s->enable & DAC_RUNNING))
2692 val |= PCM_ENABLE_OUTPUT;
2693 return put_user(val, p);
2695 case SNDCTL_DSP_SETTRIGGER:
2696 if (get_user(val, p))
2698 if (file->f_mode & FMODE_READ) {
2699 if (val & PCM_ENABLE_INPUT) {
2700 if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
2706 if (file->f_mode & FMODE_WRITE) {
2707 if (val & PCM_ENABLE_OUTPUT) {
2708 if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
2716 case SNDCTL_DSP_GETOSPACE:
2717 if (!(file->f_mode & FMODE_WRITE))
2719 if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
2721 spin_lock_irqsave(&s->lock, flags);
2723 abinfo.fragsize = s->dma_dac.fragsize;
2724 abinfo.bytes = s->dma_dac.dmasize - s->dma_dac.count;
2725 abinfo.fragstotal = s->dma_dac.numfrag;
2726 abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
2727 spin_unlock_irqrestore(&s->lock, flags);
2728 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
2730 case SNDCTL_DSP_GETISPACE:
2731 if (!(file->f_mode & FMODE_READ))
2733 if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
2735 spin_lock_irqsave(&s->lock, flags);
2737 abinfo.fragsize = s->dma_adc.fragsize;
2738 abinfo.bytes = s->dma_adc.count;
2739 abinfo.fragstotal = s->dma_adc.numfrag;
2740 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
2741 spin_unlock_irqrestore(&s->lock, flags);
2742 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
2744 case SNDCTL_DSP_NONBLOCK:
2745 file->f_flags |= O_NONBLOCK;
2748 case SNDCTL_DSP_GETODELAY:
2749 if (!(file->f_mode & FMODE_WRITE))
2751 if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
2753 spin_lock_irqsave(&s->lock, flags);
2755 val = s->dma_dac.count;
2756 spin_unlock_irqrestore(&s->lock, flags);
2757 return put_user(val, p);
2759 case SNDCTL_DSP_GETIPTR:
2760 if (!(file->f_mode & FMODE_READ))
2762 if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
2764 spin_lock_irqsave(&s->lock, flags);
2766 cinfo.bytes = s->dma_adc.total_bytes;
2767 cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
2768 cinfo.ptr = s->dma_adc.hwptr;
2769 if (s->dma_adc.mapped)
2770 s->dma_adc.count &= s->dma_adc.fragsize-1;
2771 spin_unlock_irqrestore(&s->lock, flags);
2772 if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
2776 case SNDCTL_DSP_GETOPTR:
2777 if (!(file->f_mode & FMODE_WRITE))
2779 if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
2781 spin_lock_irqsave(&s->lock, flags);
2783 cinfo.bytes = s->dma_dac.total_bytes;
2784 cinfo.blocks = s->dma_dac.count >> s->dma_dac.fragshift;
2785 cinfo.ptr = s->dma_dac.hwptr;
2786 if (s->dma_dac.mapped)
2787 s->dma_dac.count &= s->dma_dac.fragsize-1;
2788 spin_unlock_irqrestore(&s->lock, flags);
2789 if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
2793 case SNDCTL_DSP_GETBLKSIZE:
2794 if (file->f_mode & FMODE_WRITE) {
2795 if ((val = prog_dmabuf(s, 0)))
2797 return put_user(s->dma_dac.fragsize, p);
2799 if ((val = prog_dmabuf(s, 1)))
2801 return put_user(s->dma_adc.fragsize, p);
2803 case SNDCTL_DSP_SETFRAGMENT:
2804 if (get_user(val, p))
2806 M_printk("maestro: SETFRAGMENT: %0x\n",val);
2807 if (file->f_mode & FMODE_READ) {
2808 s->dma_adc.ossfragshift = val & 0xffff;
2809 s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
2810 if (s->dma_adc.ossfragshift < 4)
2811 s->dma_adc.ossfragshift = 4;
2812 if (s->dma_adc.ossfragshift > 15)
2813 s->dma_adc.ossfragshift = 15;
2814 if (s->dma_adc.ossmaxfrags < 4)
2815 s->dma_adc.ossmaxfrags = 4;
2817 if (file->f_mode & FMODE_WRITE) {
2818 s->dma_dac.ossfragshift = val & 0xffff;
2819 s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff;
2820 if (s->dma_dac.ossfragshift < 4)
2821 s->dma_dac.ossfragshift = 4;
2822 if (s->dma_dac.ossfragshift > 15)
2823 s->dma_dac.ossfragshift = 15;
2824 if (s->dma_dac.ossmaxfrags < 4)
2825 s->dma_dac.ossmaxfrags = 4;
2829 case SNDCTL_DSP_SUBDIVIDE:
2830 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
2831 (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
2833 if (get_user(val, p))
2835 if (val != 1 && val != 2 && val != 4)
2837 if (file->f_mode & FMODE_READ)
2838 s->dma_adc.subdivision = val;
2839 if (file->f_mode & FMODE_WRITE)
2840 s->dma_dac.subdivision = val;
2843 case SOUND_PCM_READ_RATE:
2844 return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
2846 case SOUND_PCM_READ_CHANNELS:
2847 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_STEREO << ESS_ADC_SHIFT)
2848 : (ESS_FMT_STEREO << ESS_DAC_SHIFT))) ? 2 : 1, p);
2850 case SOUND_PCM_READ_BITS:
2851 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_16BIT << ESS_ADC_SHIFT)
2852 : (ESS_FMT_16BIT << ESS_DAC_SHIFT))) ? 16 : 8, p);
2854 case SOUND_PCM_WRITE_FILTER:
2855 case SNDCTL_DSP_SETSYNCRO:
2856 case SOUND_PCM_READ_FILTER:
2864 set_base_registers(struct ess_state *s,void *vaddr)
2866 unsigned long packed_phys = virt_to_bus(vaddr)>>12;
2867 wave_set_register(s, 0x01FC , packed_phys);
2868 wave_set_register(s, 0x01FD , packed_phys);
2869 wave_set_register(s, 0x01FE , packed_phys);
2870 wave_set_register(s, 0x01FF , packed_phys);
2874 * this guy makes sure we're in the right power
2875 * state for what we want to be doing
2877 static void maestro_power(struct ess_card *card, int tostate)
2879 u16 active_mask = acpi_state_mask[tostate];
2884 pci_read_config_byte(card->pcidev, card->power_regs+0x4, &state);
2887 /* make sure we're in the right state */
2888 if(state != tostate) {
2889 M_printk(KERN_WARNING "maestro: dev %02x:%02x.%x switching from D%d to D%d\n",
2890 card->pcidev->bus->number,
2891 PCI_SLOT(card->pcidev->devfn),
2892 PCI_FUNC(card->pcidev->devfn),
2894 pci_write_config_byte(card->pcidev, card->power_regs+0x4, tostate);
2897 /* and make sure the units we care about are on
2898 XXX we might want to do this before state flipping? */
2899 pci_write_config_word(card->pcidev, 0x54, ~ active_mask);
2900 pci_write_config_word(card->pcidev, 0x56, ~ active_mask);
2903 /* we allocate a large power of two for all our memory.
2904 this is cut up into (not to scale :):
2905 |silly fifo word | 512byte mixbuf per adc | dac/adc * channels |
2908 allocate_buffers(struct ess_state *s)
2912 struct page *page, *pend;
2914 /* alloc as big a chunk as we can */
2915 for (order = (dsps_order + (16-PAGE_SHIFT) + 1); order >= (dsps_order + 2 + 1); order--)
2916 if((rawbuf = (void *)__get_free_pages(GFP_KERNEL|GFP_DMA, order)))
2922 M_printk("maestro: allocated %ld (%d) bytes at %p\n",PAGE_SIZE<<order,order, rawbuf);
2924 if ((virt_to_bus(rawbuf) + (PAGE_SIZE << order) - 1) & ~((1<<28)-1)) {
2925 printk(KERN_ERR "maestro: DMA buffer beyond 256MB! busaddr 0x%lx size %ld\n",
2926 virt_to_bus(rawbuf), PAGE_SIZE << order);
2931 s->card->dmapages = rawbuf;
2932 s->card->dmaorder = order;
2934 for(i=0;i<NR_DSPS;i++) {
2935 struct ess_state *ess = &s->card->channels[i];
2937 if(ess->dev_audio == -1)
2940 ess->dma_dac.ready = s->dma_dac.mapped = 0;
2941 ess->dma_adc.ready = s->dma_adc.mapped = 0;
2942 ess->dma_adc.buforder = ess->dma_dac.buforder = order - 1 - dsps_order - 1;
2944 /* offset dac and adc buffers starting half way through and then at each [da][ad]c's
2945 order's intervals.. */
2946 ess->dma_dac.rawbuf = rawbuf + (PAGE_SIZE<<(order-1)) + (i * ( PAGE_SIZE << (ess->dma_dac.buforder + 1 )));
2947 ess->dma_adc.rawbuf = ess->dma_dac.rawbuf + ( PAGE_SIZE << ess->dma_dac.buforder);
2948 /* offset mixbuf by a mixbuf so that the lame status fifo can
2949 happily scribble away.. */
2950 ess->mixbuf = rawbuf + (512 * (i+1));
2952 M_printk("maestro: setup apu %d: dac: %p adc: %p mix: %p\n",i,ess->dma_dac.rawbuf,
2953 ess->dma_adc.rawbuf, ess->mixbuf);
2957 /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
2958 pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
2959 for (page = virt_to_page(rawbuf); page <= pend; page++)
2960 SetPageReserved(page);
2965 free_buffers(struct ess_state *s)
2967 struct page *page, *pend;
2969 s->dma_dac.rawbuf = s->dma_adc.rawbuf = NULL;
2970 s->dma_dac.mapped = s->dma_adc.mapped = 0;
2971 s->dma_dac.ready = s->dma_adc.ready = 0;
2973 M_printk("maestro: freeing %p\n",s->card->dmapages);
2974 /* undo marking the pages as reserved */
2976 pend = virt_to_page(s->card->dmapages + (PAGE_SIZE << s->card->dmaorder) - 1);
2977 for (page = virt_to_page(s->card->dmapages); page <= pend; page++)
2978 ClearPageReserved(page);
2980 free_pages((unsigned long)s->card->dmapages,s->card->dmaorder);
2981 s->card->dmapages = NULL;
2985 ess_open(struct inode *inode, struct file *file)
2987 unsigned int minor = iminor(inode);
2988 struct ess_state *s = NULL;
2989 unsigned char fmtm = ~0, fmts = 0;
2990 struct pci_dev *pdev = NULL;
2992 * Scan the cards and find the channel. We only
2993 * do this at open time so it is ok
2996 while ((pdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
2998 struct pci_driver *drvr;
3000 drvr = pci_dev_driver (pdev);
3001 if (drvr == &maestro_pci_driver) {
3003 struct ess_state *sp;
3005 c = (struct ess_card*)pci_get_drvdata (pdev);
3008 for(i=0;i<NR_DSPS;i++)
3011 if(sp->dev_audio < 0)
3013 if((sp->dev_audio ^ minor) & ~0xf)
3023 file->private_data = s;
3024 /* wait for device to become free */
3025 mutex_lock(&s->open_mutex);
3026 while (s->open_mode & file->f_mode) {
3027 if (file->f_flags & O_NONBLOCK) {
3028 mutex_unlock(&s->open_mutex);
3029 return -EWOULDBLOCK;
3031 mutex_unlock(&s->open_mutex);
3032 interruptible_sleep_on(&s->open_wait);
3033 if (signal_pending(current))
3034 return -ERESTARTSYS;
3035 mutex_lock(&s->open_mutex);
3038 /* under semaphore.. */
3039 if ((s->card->dmapages==NULL) && allocate_buffers(s)) {
3040 mutex_unlock(&s->open_mutex);
3044 /* we're covered by the open_mutex */
3045 if( ! s->card->dsps_open ) {
3046 maestro_power(s->card,ACPI_D0);
3049 s->card->dsps_open++;
3050 M_printk("maestro: open, %d bobs now\n",s->card->dsps_open);
3052 /* ok, lets write WC base regs now that we've
3053 powered up the chip */
3054 M_printk("maestro: writing 0x%lx (bus 0x%lx) to the wp\n",virt_to_bus(s->card->dmapages),
3055 ((virt_to_bus(s->card->dmapages))&0xFFE00000)>>12);
3056 set_base_registers(s,s->card->dmapages);
3058 if (file->f_mode & FMODE_READ) {
3060 fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_ADC_SHIFT);
3061 if ((minor & 0xf) == SND_DEV_DSP16)
3062 fmts |= ESS_FMT_16BIT << ESS_ADC_SHIFT; */
3064 fmtm &= ~((ESS_FMT_STEREO|ESS_FMT_16BIT) << ESS_ADC_SHIFT);
3065 fmts = (ESS_FMT_STEREO|ESS_FMT_16BIT) << ESS_ADC_SHIFT;
3067 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
3068 set_adc_rate(s, 8000);
3070 if (file->f_mode & FMODE_WRITE) {
3071 fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_DAC_SHIFT);
3072 if ((minor & 0xf) == SND_DEV_DSP16)
3073 fmts |= ESS_FMT_16BIT << ESS_DAC_SHIFT;
3075 s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0;
3076 set_dac_rate(s, 8000);
3078 set_fmt(s, fmtm, fmts);
3079 s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
3081 mutex_unlock(&s->open_mutex);
3082 return nonseekable_open(inode, file);
3086 ess_release(struct inode *inode, struct file *file)
3088 struct ess_state *s = (struct ess_state *)file->private_data;
3092 if (file->f_mode & FMODE_WRITE)
3093 drain_dac(s, file->f_flags & O_NONBLOCK);
3094 mutex_lock(&s->open_mutex);
3095 if (file->f_mode & FMODE_WRITE) {
3098 if (file->f_mode & FMODE_READ) {
3102 s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
3103 /* we're covered by the open_mutex */
3104 M_printk("maestro: %d dsps now alive\n",s->card->dsps_open-1);
3105 if( --s->card->dsps_open <= 0) {
3106 s->card->dsps_open = 0;
3109 maestro_power(s->card,ACPI_D2);
3111 mutex_unlock(&s->open_mutex);
3112 wake_up(&s->open_wait);
3117 static struct file_operations ess_audio_fops = {
3118 .owner = THIS_MODULE,
3119 .llseek = no_llseek,
3126 .release = ess_release,
3130 maestro_config(struct ess_card *card)
3132 struct pci_dev *pcidev = card->pcidev;
3133 struct ess_state *ess = &card->channels[0];
3134 int apu,iobase = card->iobase;
3138 /* We used to muck around with pci config space that
3139 * we had no business messing with. We don't know enough
3140 * about the machine to know which DMA mode is appropriate,
3141 * etc. We were guessing wrong on some machines and making
3142 * them unhappy. We now trust in the BIOS to do things right,
3143 * which almost certainly means a new host of problems will
3144 * arise with broken BIOS implementations. screw 'em.
3145 * We're already intolerant of machines that don't assign
3149 /* do config work at full power */
3150 maestro_power(card,ACPI_D0);
3152 pci_read_config_word(pcidev, 0x50, &w);
3154 w&=~(1<<5); /* Don't swap left/right (undoc)*/
3156 pci_write_config_word(pcidev, 0x50, w);
3158 pci_read_config_word(pcidev, 0x52, &w);
3159 w&=~(1<<15); /* Turn off internal clock multiplier */
3160 /* XXX how do we know which to use? */
3161 w&=~(1<<14); /* External clock */
3163 w|= (1<<7); /* Hardware volume control on */
3164 w|= (1<<6); /* Debounce off: easier to push the HWV buttons. */
3165 w&=~(1<<5); /* GPIO 4:5 */
3166 w|= (1<<4); /* Disconnect from the CHI. Enabling this made a dell 7500 work. */
3167 w&=~(1<<2); /* MIDI fix off (undoc) */
3168 w&=~(1<<1); /* reserved, always write 0 */
3169 pci_write_config_word(pcidev, 0x52, w);
3175 pci_read_config_word(pcidev, 0x40, &w);
3176 w|=(1<<15); /* legacy decode off */
3177 w&=~(1<<14); /* Disable SIRQ */
3178 w&=~(0x1f); /* disable mpu irq/io, game port, fm, SB */
3180 pci_write_config_word(pcidev, 0x40, w);
3182 /* Set up 978 docking control chip. */
3183 pci_read_config_word(pcidev, 0x58, &w);
3184 w|=1<<2; /* Enable 978. */
3185 w|=1<<3; /* Turn on 978 hardware volume control. */
3186 w&=~(1<<11); /* Turn on 978 mixer volume control. */
3187 pci_write_config_word(pcidev, 0x58, w);
3189 sound_reset(iobase);
3195 /* setup usual 0x34 stuff.. 0x36 may be chip specific */
3196 outw(0xC090, iobase+0x34); /* direct sound, stereo */
3198 outw(0x3000, iobase+0x36); /* direct sound, stereo */
3206 maestro_ac97_reset(iobase,pcidev);
3214 n|=12<<12; /* Direct Sound, Stereo */
3215 outl(n, iobase+0x34);
3218 n&=~0x0F00; /* Modem off */
3219 outl(n, iobase+0x34);
3223 n|=9<<4; /* DAC, Stereo */
3224 outl(n, iobase+0x34);
3227 n&=~0x000F; /* ASSP off */
3228 outl(n, iobase+0x34);
3231 n|=(1<<29); /* Enable ring bus */
3232 outl(n, iobase+0x34);
3235 n|=(1<<28); /* Enable serial bus */
3236 outl(n, iobase+0x34);
3239 n&=~0x00F00000; /* MIC off */
3240 outl(n, iobase+0x34);
3243 n&=~0x000F0000; /* I2S off */
3244 outl(n, iobase+0x34);
3248 w&=~(1<<7); /* ClkRun off */
3249 outw(w, iobase+0x18);
3252 w&=~(1<<6); /* Hardware volume control interrupt off... for now. */
3253 outw(w, iobase+0x18);
3256 w&=~(1<<4); /* ASSP irq off */
3257 outw(w, iobase+0x18);
3260 w&=~(1<<3); /* ISDN irq off */
3261 outw(w, iobase+0x18);
3264 w|=(1<<2); /* Direct Sound IRQ on */
3265 outw(w, iobase+0x18);
3268 w&=~(1<<1); /* MPU401 IRQ off */
3269 outw(w, iobase+0x18);
3272 w|=(1<<0); /* SB IRQ on */
3273 outw(w, iobase+0x18);
3275 /* Set hardware volume control registers to midpoints.
3276 We can tell which button was pushed based on how they change. */
3277 outb(0x88, iobase+0x1c);
3278 outb(0x88, iobase+0x1d);
3279 outb(0x88, iobase+0x1e);
3280 outb(0x88, iobase+0x1f);
3282 /* it appears some maestros (dell 7500) only work if these are set,
3283 regardless of whether we use the assp or not. */
3285 outb(0, iobase+0xA4);
3286 outb(3, iobase+0xA2);
3287 outb(0, iobase+0xA6);
3289 for(apu=0;apu<16;apu++)
3291 /* Write 0 into the buffer area 0x1E0->1EF */
3292 outw(0x01E0+apu, 0x10+iobase);
3293 outw(0x0000, 0x12+iobase);
3296 * The 1.10 test program seem to write 0 into the buffer area
3299 outw(0x01D0+apu, 0x10+iobase);
3300 outw(0x0000, 0x12+iobase);
3304 wave_set_register(ess, IDR7_WAVE_ROMRAM,
3305 (wave_get_register(ess, IDR7_WAVE_ROMRAM)&0xFF00));
3306 wave_set_register(ess, IDR7_WAVE_ROMRAM,
3307 wave_get_register(ess, IDR7_WAVE_ROMRAM)|0x100);
3308 wave_set_register(ess, IDR7_WAVE_ROMRAM,
3309 wave_get_register(ess, IDR7_WAVE_ROMRAM)&~0x200);
3310 wave_set_register(ess, IDR7_WAVE_ROMRAM,
3311 wave_get_register(ess, IDR7_WAVE_ROMRAM)|~0x400);
3313 maestro_write(ess, IDR7_WAVE_ROMRAM,
3314 (maestro_read(ess, IDR7_WAVE_ROMRAM)&0xFF00));
3315 maestro_write(ess, IDR7_WAVE_ROMRAM,
3316 maestro_read(ess, IDR7_WAVE_ROMRAM)|0x100);
3317 maestro_write(ess, IDR7_WAVE_ROMRAM,
3318 maestro_read(ess, IDR7_WAVE_ROMRAM)&~0x200);
3319 maestro_write(ess, IDR7_WAVE_ROMRAM,
3320 maestro_read(ess, IDR7_WAVE_ROMRAM)|0x400);
3323 maestro_write(ess, IDR2_CRAM_DATA, 0x0000);
3324 maestro_write(ess, 0x08, 0xB004);
3325 /* Now back to the DirectSound stuff */
3326 maestro_write(ess, 0x09, 0x001B);
3327 maestro_write(ess, 0x0A, 0x8000);
3328 maestro_write(ess, 0x0B, 0x3F37);
3329 maestro_write(ess, 0x0C, 0x0098);
3331 /* parallel out ?? */
3332 maestro_write(ess, 0x0C,
3333 (maestro_read(ess, 0x0C)&~0xF000)|0x8000);
3334 /* parallel in, has something to do with recording :) */
3335 maestro_write(ess, 0x0C,
3336 (maestro_read(ess, 0x0C)&~0x0F00)|0x0500);
3338 maestro_write(ess, 0x0D, 0x7632);
3340 /* Wave cache control on - test off, sg off,
3341 enable, enable extra chans 1Mb */
3343 outw(inw(0x14+iobase)|(1<<8),0x14+iobase);
3344 outw(inw(0x14+iobase)&0xFE03,0x14+iobase);
3345 outw((inw(0x14+iobase)&0xFFFC), 0x14+iobase);
3346 outw(inw(0x14+iobase)|(1<<7),0x14+iobase);
3348 outw(0xA1A0, 0x14+iobase); /* 0300 ? */
3350 /* Now clear the APU control ram */
3351 for(apu=0;apu<NR_APUS;apu++)
3353 for(w=0;w<NR_APU_REGS;w++)
3354 apu_set_register(ess, apu|ESS_CHAN_HARD, w, 0);
3362 /* this guy tries to find the pci power management
3363 * register bank. this should really be in core
3364 * code somewhere. 1 on success. */
3366 parse_power(struct ess_card *card, struct pci_dev *pcidev)
3371 int max = 64; /* an a 8bit guy pointing to 32bit guys
3372 can only express so much. */
3374 card->power_regs = 0;
3376 /* check to see if we have a capabilities list in
3377 the config register */
3378 pci_read_config_word(pcidev, PCI_STATUS, &w);
3379 if(!(w & PCI_STATUS_CAP_LIST)) return 0;
3381 /* walk the list, starting at the head. */
3382 pci_read_config_byte(pcidev,PCI_CAPABILITY_LIST,&next);
3384 while(next && max--) {
3385 pci_read_config_dword(pcidev, next & ~3, &n);
3386 if((n & 0xff) == PCI_CAP_ID_PM) {
3387 card->power_regs = next;
3390 next = ((n>>8) & 0xff);
3393 return card->power_regs ? 1 : 0;
3397 maestro_probe(struct pci_dev *pcidev,const struct pci_device_id *pdid)
3399 int card_type = pdid->driver_data;
3403 struct ess_card *card;
3404 struct ess_state *ess;
3407 /* when built into the kernel, we only print version if device is found */
3409 static int printed_version;
3410 if (!printed_version++)
3414 /* don't pick up weird modem maestros */
3415 if(((pcidev->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
3419 if ((ret=pci_enable_device(pcidev)))
3422 iobase = pci_resource_start(pcidev,0);
3423 if (!iobase || !(pci_resource_flags(pcidev, 0 ) & IORESOURCE_IO))
3426 if(pcidev->irq == 0)
3429 /* stake our claim on the iospace */
3430 if( request_region(iobase, 256, card_names[card_type]) == NULL )
3432 printk(KERN_WARNING "maestro: can't allocate 256 bytes I/O at 0x%4.4x\n", iobase);
3436 /* just to be sure */
3437 pci_set_master(pcidev);
3439 card = kmalloc(sizeof(struct ess_card), GFP_KERNEL);
3442 printk(KERN_WARNING "maestro: out of memory\n");
3443 release_region(iobase, 256);
3447 memset(card, 0, sizeof(*card));
3448 card->pcidev = pcidev;
3450 card->iobase = iobase;
3451 card->card_type = card_type;
3452 card->irq = pcidev->irq;
3453 card->magic = ESS_CARD_MAGIC;
3454 spin_lock_init(&card->lock);
3455 init_waitqueue_head(&card->suspend_queue);
3457 card->dock_mute_vol = 50;
3459 /* init our groups of 6 apus */
3460 for(i=0;i<NR_DSPS;i++)
3462 struct ess_state *s=&card->channels[i];
3467 init_waitqueue_head(&s->dma_adc.wait);
3468 init_waitqueue_head(&s->dma_dac.wait);
3469 init_waitqueue_head(&s->open_wait);
3470 spin_lock_init(&s->lock);
3471 mutex_init(&s->open_mutex);
3472 s->magic = ESS_STATE_MAGIC;
3475 s->apu[1] = (6*i)+1;
3476 s->apu[2] = (6*i)+2;
3477 s->apu[3] = (6*i)+3;
3478 s->apu[4] = (6*i)+4;
3479 s->apu[5] = (6*i)+5;
3481 if(s->dma_adc.ready || s->dma_dac.ready || s->dma_adc.rawbuf)
3482 printk("maestro: BOTCH!\n");
3483 /* register devices */
3484 if ((s->dev_audio = register_sound_dsp(&ess_audio_fops, -1)) < 0)
3490 /* clear the rest if we ran out of slots to register */
3493 struct ess_state *s=&card->channels[i];
3497 ess = &card->channels[0];
3500 * Ok card ready. Begin setup proper
3503 printk(KERN_INFO "maestro: Configuring %s found at IO 0x%04X IRQ %d\n",
3504 card_names[card_type],iobase,card->irq);
3505 pci_read_config_dword(pcidev, PCI_SUBSYSTEM_VENDOR_ID, &n);
3506 printk(KERN_INFO "maestro: subvendor id: 0x%08x\n",n);
3508 /* turn off power management unless:
3509 * - the user explicitly asks for it
3511 * - we're not a 2e, lesser chipps seem to have problems.
3512 * - we're not on our _very_ small whitelist. some implemenetations
3513 * really don't like the pm code, others require it.
3514 * feel free to expand this as required.
3516 #define SUBSYSTEM_VENDOR(x) (x&0xffff)
3517 if( (use_pm != 1) &&
3518 ((card_type != TYPE_MAESTRO2E) || (SUBSYSTEM_VENDOR(n) != 0x1028)))
3522 printk(KERN_INFO "maestro: not attempting power management.\n");
3524 if(!parse_power(card,pcidev))
3525 printk(KERN_INFO "maestro: no PCI power management interface found.\n");
3527 pci_read_config_dword(pcidev, card->power_regs, &n);
3528 printk(KERN_INFO "maestro: PCI power management capability: 0x%x\n",n>>16);
3532 maestro_config(card);
3534 if(maestro_ac97_get(card, 0x00)==0x0080) {
3535 printk(KERN_ERR "maestro: my goodness! you seem to have a pt101 codec, which is quite rare.\n"
3536 "\tyou should tell someone about this.\n");
3538 maestro_ac97_init(card);
3541 if ((card->dev_mixer = register_sound_mixer(&ess_mixer_fops, -1)) < 0) {
3542 printk("maestro: couldn't register mixer!\n");
3544 memcpy(card->mix.mixer_state,mixer_defaults,sizeof(card->mix.mixer_state));
3545 mixer_push_state(card);
3548 if((ret=request_irq(card->irq, ess_interrupt, IRQF_SHARED, card_names[card_type], card)))
3550 printk(KERN_ERR "maestro: unable to allocate irq %d,\n", card->irq);
3551 unregister_sound_mixer(card->dev_mixer);
3552 for(i=0;i<NR_DSPS;i++)
3554 struct ess_state *s = &card->channels[i];
3555 if(s->dev_audio != -1)
3556 unregister_sound_dsp(s->dev_audio);
3558 release_region(card->iobase, 256);
3559 unregister_reboot_notifier(&maestro_nb);
3564 /* Turn on hardware volume control interrupt.
3565 This has to come after we grab the IRQ above,
3566 or a crash will result on installation if a button has been pressed,
3567 because in that case we'll get an immediate interrupt. */
3568 n = inw(iobase+0x18);
3570 outw(n, iobase+0x18);
3572 pci_set_drvdata(pcidev,card);
3573 /* now go to sleep 'till something interesting happens */
3574 maestro_power(card,ACPI_D2);
3576 printk(KERN_INFO "maestro: %d channels configured.\n", num);
3580 static void maestro_remove(struct pci_dev *pcidev) {
3581 struct ess_card *card = pci_get_drvdata(pcidev);
3585 /* XXX maybe should force stop bob, but should be all
3586 stopped by _release by now */
3588 /* Turn off hardware volume control interrupt.
3589 This has to come before we leave the IRQ below,
3590 or a crash results if a button is pressed ! */
3591 n = inw(card->iobase+0x18);
3593 outw(n, card->iobase+0x18);
3595 free_irq(card->irq, card);
3596 unregister_sound_mixer(card->dev_mixer);
3597 for(i=0;i<NR_DSPS;i++)
3599 struct ess_state *ess = &card->channels[i];
3600 if(ess->dev_audio != -1)
3601 unregister_sound_dsp(ess->dev_audio);
3603 /* Goodbye, Mr. Bond. */
3604 maestro_power(card,ACPI_D3);
3605 release_region(card->iobase, 256);
3607 pci_set_drvdata(pcidev,NULL);
3610 static struct pci_device_id maestro_pci_tbl[] = {
3611 {PCI_VENDOR_ESS, PCI_DEVICE_ID_ESS_ESS1968, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_MAESTRO2},
3612 {PCI_VENDOR_ESS, PCI_DEVICE_ID_ESS_ESS1978, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_MAESTRO2E},
3613 {PCI_VENDOR_ESS_OLD, PCI_DEVICE_ID_ESS_ESS0100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_MAESTRO},
3616 MODULE_DEVICE_TABLE(pci, maestro_pci_tbl);
3618 static struct pci_driver maestro_pci_driver = {
3620 .id_table = maestro_pci_tbl,
3621 .probe = maestro_probe,
3622 .remove = maestro_remove,
3625 static int __init init_maestro(void)
3629 rc = pci_register_driver(&maestro_pci_driver);
3633 if (register_reboot_notifier(&maestro_nb))
3634 printk(KERN_WARNING "maestro: reboot notifier registration failed; may not reboot properly.\n");
3638 if (dsps_order < 0) {
3640 printk(KERN_WARNING "maestro: clipping dsps_order to %d\n",dsps_order);
3642 else if (dsps_order > MAX_DSP_ORDER) {
3643 dsps_order = MAX_DSP_ORDER;
3644 printk(KERN_WARNING "maestro: clipping dsps_order to %d\n",dsps_order);
3649 static int maestro_notifier(struct notifier_block *nb, unsigned long event, void *buf)
3651 /* this notifier is called when the kernel is really shut down. */
3652 M_printk("maestro: shutting down\n");
3653 /* this will remove all card instances too */
3654 pci_unregister_driver(&maestro_pci_driver);
3655 /* XXX dunno about power management */
3659 /* --------------------------------------------------------------------- */
3662 static void cleanup_maestro(void) {
3663 M_printk("maestro: unloading\n");
3664 pci_unregister_driver(&maestro_pci_driver);
3665 unregister_reboot_notifier(&maestro_nb);
3668 /* --------------------------------------------------------------------- */
3671 check_suspend(struct ess_card *card)
3673 DECLARE_WAITQUEUE(wait, current);
3675 if(!card->in_suspend) return;
3678 add_wait_queue(&(card->suspend_queue), &wait);
3679 current->state = TASK_UNINTERRUPTIBLE;
3681 remove_wait_queue(&(card->suspend_queue), &wait);
3682 current->state = TASK_RUNNING;
3685 module_init(init_maestro);
3686 module_exit(cleanup_maestro);