summaryrefslogtreecommitdiffstats
path: root/sound/oss/maestro.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/oss/maestro.c')
-rw-r--r--sound/oss/maestro.c3686
1 files changed, 0 insertions, 3686 deletions
diff --git a/sound/oss/maestro.c b/sound/oss/maestro.c
deleted file mode 100644
index 1d98d100d739..000000000000
--- a/sound/oss/maestro.c
+++ /dev/null
@@ -1,3686 +0,0 @@
-/*****************************************************************************
- *
- * ESS Maestro/Maestro-2/Maestro-2E driver for Linux 2.[23].x
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * (c) Copyright 1999 Alan Cox <alan.cox@linux.org>
- *
- * Based heavily on SonicVibes.c:
- * Copyright (C) 1998-1999 Thomas Sailer (sailer@ife.ee.ethz.ch)
- *
- * Heavily modified by Zach Brown <zab@zabbo.net> based on lunch
- * with ESS engineers. Many thanks to Howard Kim for providing
- * contacts and hardware. Honorable mention goes to Eric
- * Brombaugh for all sorts of things. Best regards to the
- * proprietors of Hack Central for fine lodging.
- *
- * Supported devices:
- * /dev/dsp0-3 standard /dev/dsp device, (mostly) OSS compatible
- * /dev/mixer standard /dev/mixer device, (mostly) OSS compatible
- *
- * Hardware Description
- *
- * A working Maestro setup contains the Maestro chip wired to a
- * codec or 2. In the Maestro we have the APUs, the ASSP, and the
- * Wavecache. The APUs can be though of as virtual audio routing
- * channels. They can take data from a number of sources and perform
- * basic encodings of the data. The wavecache is a storehouse for
- * PCM data. Typically it deals with PCI and interracts with the
- * APUs. The ASSP is a wacky DSP like device that ESS is loth
- * to release docs on. Thankfully it isn't required on the Maestro
- * until you start doing insane things like FM emulation and surround
- * encoding. The codecs are almost always AC-97 compliant codecs,
- * but it appears that early Maestros may have had PT101 (an ESS
- * part?) wired to them. The only real difference in the Maestro
- * families is external goop like docking capability, memory for
- * the ASSP, and initialization differences.
- *
- * Driver Operation
- *
- * We only drive the APU/Wavecache as typical DACs and drive the
- * mixers in the codecs. There are 64 APUs. We assign 6 to each
- * /dev/dsp? device. 2 channels for output, and 4 channels for
- * input.
- *
- * Each APU can do a number of things, but we only really use
- * 3 basic functions. For playback we use them to convert PCM
- * data fetched over PCI by the wavecahche into analog data that
- * is handed to the codec. One APU for mono, and a pair for stereo.
- * When in stereo, the combination of smarts in the APU and Wavecache
- * decide which wavecache gets the left or right channel.
- *
- * For record we still use the old overly mono system. For each in
- * coming channel the data comes in from the codec, through a 'input'
- * APU, through another rate converter APU, and then into memory via
- * the wavecache and PCI. If its stereo, we mash it back into LRLR in
- * software. The pass between the 2 APUs is supposedly what requires us
- * to have a 512 byte buffer sitting around in wavecache/memory.
- *
- * The wavecache makes our life even more fun. First off, it can
- * only address the first 28 bits of PCI address space, making it
- * useless on quite a few architectures. Secondly, its insane.
- * It claims to fetch from 4 regions of PCI space, each 4 meg in length.
- * But that doesn't really work. You can only use 1 region. So all our
- * allocations have to be in 4meg of each other. Booo. Hiss.
- * So we have a module parameter, dsps_order, that is the order of
- * the number of dsps to provide. All their buffer space is allocated
- * on open time. The sonicvibes OSS routines we inherited really want
- * power of 2 buffers, so we have all those next to each other, then
- * 512 byte regions for the recording wavecaches. This ends up
- * wasting quite a bit of memory. The only fixes I can see would be
- * getting a kernel allocator that could work in zones, or figuring out
- * just how to coerce the WP into doing what we want.
- *
- * The indirection of the various registers means we have to spinlock
- * nearly all register accesses. We have the main register indirection
- * like the wave cache, maestro registers, etc. Then we have beasts
- * like the APU interface that is indirect registers gotten at through
- * the main maestro indirection. Ouch. We spinlock around the actual
- * ports on a per card basis. This means spinlock activity at each IO
- * operation, but the only IO operation clusters are in non critical
- * paths and it makes the code far easier to follow. Interrupts are
- * blocked while holding the locks because the int handler has to
- * get at some of them :(. The mixer interface doesn't, however.
- * We also have an OSS state lock that is thrown around in a few
- * places.
- *
- * This driver has brute force APM suspend support. We catch suspend
- * notifications and stop all work being done on the chip. Any people
- * that try between this shutdown and the real suspend operation will
- * be put to sleep. When we resume we restore our software state on
- * the chip and wake up the people that were using it. The code thats
- * being used now is quite dirty and assumes we're on a uni-processor
- * machine. Much of it will need to be cleaned up for SMP ACPI or
- * similar.
- *
- * We also pay attention to PCI power management now. The driver
- * will power down units of the chip that it knows aren't needed.
- * The WaveProcessor and company are only powered on when people
- * have /dev/dsp*s open. On removal the driver will
- * power down the maestro entirely. There could still be
- * trouble with BIOSen that magically change power states
- * themselves, but we'll see.
- *
- * History
- * v0.15 - May 21 2001 - Marcus Meissner <mm@caldera.de>
- * Ported to Linux 2.4 PCI API. Some clean ups, global devs list
- * removed (now using pci device driver data).
- * PM needs to be polished still. Bumped version.
- * (still kind of v0.14) May 13 2001 - Ben Pfaff <pfaffben@msu.edu>
- * Add support for 978 docking and basic hardware volume control
- * (still kind of v0.14) Nov 23 - Alan Cox <alan@redhat.com>
- * Add clocking= for people with seriously warped hardware
- * (still v0.14) Nov 10 2000 - Bartlomiej Zolnierkiewicz <bkz@linux-ide.org>
- * add __init to maestro_ac97_init() and maestro_install()
- * (still based on v0.14) Mar 29 2000 - Zach Brown <zab@redhat.com>
- * move to 2.3 power management interface, which
- * required hacking some suspend/resume/check paths
- * make static compilation work
- * v0.14 - Jan 28 2000 - Zach Brown <zab@redhat.com>
- * add PCI power management through ACPI regs.
- * we now shut down on machine reboot/halt
- * leave scary PCI config items alone (isa stuff, mostly)
- * enable 1921s, it seems only mine was broke.
- * fix swapped left/right pcm dac. har har.
- * up bob freq, increase buffers, fix pointers at underflow
- * silly compilation problems
- * v0.13 - Nov 18 1999 - Zach Brown <zab@redhat.com>
- * fix nec Versas? man would that be cool.
- * v0.12 - Nov 12 1999 - Zach Brown <zab@redhat.com>
- * brown bag volume max fix..
- * v0.11 - Nov 11 1999 - Zach Brown <zab@redhat.com>
- * use proper stereo apu decoding, mmap/write should work.
- * make volume sliders more useful, tweak rate calculation.
- * fix lame 8bit format reporting bug. duh. apm apu saving buglet also
- * fix maestro 1 clock freq "bug", remove pt101 support
- * v0.10 - Oct 28 1999 - Zach Brown <zab@redhat.com>
- * aha, so, sometimes the WP writes a status word to offset 0
- * from one of the PCMBARs. rearrange allocation accordingly..
- * cheers again to Eric for being a good hacker in investigating this.
- * Jeroen Hoogervorst submits 7500 fix out of nowhere. yay. :)
- * v0.09 - Oct 23 1999 - Zach Brown <zab@redhat.com>
- * added APM support.
- * re-order something such that some 2Es now work. Magic!
- * new codec reset routine. made some codecs come to life.
- * fix clear_advance, sync some control with ESS.
- * now write to all base regs to be paranoid.
- * v0.08 - Oct 20 1999 - Zach Brown <zab@redhat.com>
- * Fix initial buflen bug. I am so smart. also smp compiling..
- * I owe Eric yet another beer: fixed recmask, igain,
- * muting, and adc sync consistency. Go Team.
- * v0.07 - Oct 4 1999 - Zach Brown <zab@redhat.com>
- * tweak adc/dac, formating, and stuff to allow full duplex
- * allocate dsps memory at open() so we can fit in the wavecache window
- * fix wavecache braindamage. again. no more scribbling?
- * fix ess 1921 codec bug on some laptops.
- * fix dumb pci scanning bug
- * started 2.3 cleanup, redid spinlocks, little cleanups
- * v0.06 - Sep 20 1999 - Zach Brown <zab@redhat.com>
- * fix wavecache thinkos. limit to 1 /dev/dsp.
- * eric is wearing his thinking toque this week.
- * spotted apu mode bugs and gain ramping problem
- * don't touch weird mixer regs, make recmask optional
- * fixed igain inversion, defaults for mixers, clean up rec_start
- * make mono recording work.
- * report subsystem stuff, please send reports.
- * littles: parallel out, amp now
- * v0.05 - Sep 17 1999 - Zach Brown <zab@redhat.com>
- * merged and fixed up Eric's initial recording code
- * munged format handling to catch misuse, needs rewrite.
- * revert ring bus init, fixup shared int, add pci busmaster setting
- * fix mixer oss interface, fix mic mute and recmask
- * mask off unsupported mixers, reset with all 1s, modularize defaults
- * make sure bob is running while we need it
- * got rid of device limit, initial minimal apm hooks
- * pull out dead code/includes, only allow multimedia/audio maestros
- * v0.04 - Sep 01 1999 - Zach Brown <zab@redhat.com>
- * copied memory leak fix from sonicvibes driver
- * different ac97 reset, play with 2.0 ac97, simplify ring bus setup
- * bob freq code, region sanity, jitter sync fix; all from Eric
- *
- * TODO
- * fix bob frequency
- * endianness
- * do smart things with ac97 2.0 bits.
- * dual codecs
- * leave 54->61 open
- *
- * it also would be fun to have a mode that would not use pci dma at all
- * but would copy into the wavecache on board memory and use that
- * on architectures that don't like the maestro's pci dma ickiness.
- */
-
-/*****************************************************************************/
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/smp_lock.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/sound.h>
-#include <linux/slab.h>
-#include <linux/soundcard.h>
-#include <linux/pci.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/poll.h>
-#include <linux/reboot.h>
-#include <linux/bitops.h>
-#include <linux/wait.h>
-#include <linux/mutex.h>
-
-
-#include <asm/current.h>
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <asm/page.h>
-#include <asm/uaccess.h>
-
-#include "maestro.h"
-
-static struct pci_driver maestro_pci_driver;
-
-/* --------------------------------------------------------------------- */
-
-#define M_DEBUG 1
-
-#ifdef M_DEBUG
-static int debug;
-#define M_printk(args...) {if (debug) printk(args);}
-#else
-#define M_printk(x)
-#endif
-
-/* we try to setup 2^(dsps_order) /dev/dsp devices */
-static int dsps_order;
-/* whether or not we mess around with power management */
-static int use_pm=2; /* set to 1 for force */
-/* clocking for broken hardware - a few laptops seem to use a 50Khz clock
- ie insmod with clocking=50000 or so */
-
-static int clocking=48000;
-
-MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Alan Cox <alan@redhat.com>");
-MODULE_DESCRIPTION("ESS Maestro Driver");
-MODULE_LICENSE("GPL");
-
-#ifdef M_DEBUG
-module_param(debug, bool, 0644);
-#endif
-module_param(dsps_order, int, 0);
-module_param(use_pm, int, 0);
-module_param(clocking, int, 0);
-
-/* --------------------------------------------------------------------- */
-#define DRIVER_VERSION "0.15"
-
-#ifndef PCI_VENDOR_ESS
-#define PCI_VENDOR_ESS 0x125D
-#define PCI_DEVICE_ID_ESS_ESS1968 0x1968 /* Maestro 2 */
-#define PCI_DEVICE_ID_ESS_ESS1978 0x1978 /* Maestro 2E */
-
-#define PCI_VENDOR_ESS_OLD 0x1285 /* Platform Tech,
- the people the maestro
- was bought from */
-#define PCI_DEVICE_ID_ESS_ESS0100 0x0100 /* maestro 1 */
-#endif /* PCI_VENDOR_ESS */
-
-#define ESS_CHAN_HARD 0x100
-
-/* NEC Versas ? */
-#define NEC_VERSA_SUBID1 0x80581033
-#define NEC_VERSA_SUBID2 0x803c1033
-
-
-/* changed so that I could actually find all the
- references and fix them up. it's a little more readable now. */
-#define ESS_FMT_STEREO 0x01
-#define ESS_FMT_16BIT 0x02
-#define ESS_FMT_MASK 0x03
-#define ESS_DAC_SHIFT 0
-#define ESS_ADC_SHIFT 4
-
-#define ESS_STATE_MAGIC 0x125D1968
-#define ESS_CARD_MAGIC 0x19283746
-
-#define DAC_RUNNING 1
-#define ADC_RUNNING 2
-
-#define MAX_DSP_ORDER 2
-#define MAX_DSPS (1<<MAX_DSP_ORDER)
-#define NR_DSPS (1<<dsps_order)
-#define NR_IDRS 32
-
-#define NR_APUS 64
-#define NR_APU_REGS 16
-
-/* acpi states */
-enum {
- ACPI_D0=0,
- ACPI_D1,
- ACPI_D2,
- ACPI_D3
-};
-
-/* bits in the acpi masks */
-#define ACPI_12MHZ ( 1 << 15)
-#define ACPI_24MHZ ( 1 << 14)
-#define ACPI_978 ( 1 << 13)
-#define ACPI_SPDIF ( 1 << 12)
-#define ACPI_GLUE ( 1 << 11)
-#define ACPI__10 ( 1 << 10) /* reserved */
-#define ACPI_PCIINT ( 1 << 9)
-#define ACPI_HV ( 1 << 8) /* hardware volume */
-#define ACPI_GPIO ( 1 << 7)
-#define ACPI_ASSP ( 1 << 6)
-#define ACPI_SB ( 1 << 5) /* sb emul */
-#define ACPI_FM ( 1 << 4) /* fm emul */
-#define ACPI_RB ( 1 << 3) /* ringbus / aclink */
-#define ACPI_MIDI ( 1 << 2)
-#define ACPI_GP ( 1 << 1) /* game port */
-#define ACPI_WP ( 1 << 0) /* wave processor */
-
-#define ACPI_ALL (0xffff)
-#define ACPI_SLEEP (~(ACPI_SPDIF|ACPI_ASSP|ACPI_SB|ACPI_FM| \
- ACPI_MIDI|ACPI_GP|ACPI_WP))
-#define ACPI_NONE (ACPI__10)
-
-/* these masks indicate which units we care about at
- which states */
-static u16 acpi_state_mask[] = {
- [ACPI_D0] = ACPI_ALL,
- [ACPI_D1] = ACPI_SLEEP,
- [ACPI_D2] = ACPI_SLEEP,
- [ACPI_D3] = ACPI_NONE
-};
-
-static char version[] __devinitdata =
-KERN_INFO "maestro: version " DRIVER_VERSION " time " __TIME__ " " __DATE__ "\n";
-
-
-
-static const unsigned sample_size[] = { 1, 2, 2, 4 };
-static const unsigned sample_shift[] = { 0, 1, 1, 2 };
-
-enum card_types_t {
- TYPE_MAESTRO,
- TYPE_MAESTRO2,
- TYPE_MAESTRO2E
-};
-
-static const char *card_names[]={
- [TYPE_MAESTRO] = "ESS Maestro",
- [TYPE_MAESTRO2] = "ESS Maestro 2",
- [TYPE_MAESTRO2E] = "ESS Maestro 2E"
-};
-
-static int clock_freq[]={
- [TYPE_MAESTRO] = (49152000L / 1024L),
- [TYPE_MAESTRO2] = (50000000L / 1024L),
- [TYPE_MAESTRO2E] = (50000000L / 1024L)
-};
-
-static int maestro_notifier(struct notifier_block *nb, unsigned long event, void *buf);
-
-static struct notifier_block maestro_nb = {maestro_notifier, NULL, 0};
-
-/* --------------------------------------------------------------------- */
-
-struct ess_state {
- unsigned int magic;
- /* FIXME: we probably want submixers in here, but only one record pair */
- u8 apu[6]; /* l/r output, l/r intput converters, l/r input apus */
- u8 apu_mode[6]; /* Running mode for this APU */
- u8 apu_pan[6]; /* Panning setup for this APU */
- u32 apu_base[6]; /* base address for this apu */
- struct ess_card *card; /* Card info */
- /* wave stuff */
- unsigned int rateadc, ratedac;
- unsigned char fmt, enable;
-
- int index;
-
- /* this locks around the oss state in the driver */
- spinlock_t lock;
- /* only let 1 be opening at a time */
- struct mutex open_mutex;
- wait_queue_head_t open_wait;
- mode_t open_mode;
-
- /* soundcore stuff */
- int dev_audio;
-
- struct dmabuf {
- void *rawbuf;
- unsigned buforder;
- unsigned numfrag;
- unsigned fragshift;
- /* XXX zab - swptr only in here so that it can be referenced by
- clear_advance, as far as I can tell :( */
- unsigned hwptr, swptr;
- unsigned total_bytes;
- int count;
- unsigned error; /* over/underrun */
- wait_queue_head_t wait;
- /* redundant, but makes calculations easier */
- unsigned fragsize;
- unsigned dmasize;
- unsigned fragsamples;
- /* OSS stuff */
- unsigned mapped:1;
- unsigned ready:1; /* our oss buffers are ready to go */
- unsigned endcleared:1;
- unsigned ossfragshift;
- int ossmaxfrags;
- unsigned subdivision;
- u16 base; /* Offset for ptr */
- } dma_dac, dma_adc;
-
- /* pointer to each dsp?s piece of the apu->src buffer page */
- void *mixbuf;
-
-};
-
-struct ess_card {
- unsigned int magic;
-
- /* We keep maestro cards in a linked list */
- struct ess_card *next;
-
- int dev_mixer;
-
- int card_type;
-
- /* as most of this is static,
- perhaps it should be a pointer to a global struct */
- struct mixer_goo {
- int modcnt;
- int supported_mixers;
- int stereo_mixers;
- int record_sources;
- /* the caller must guarantee arg sanity before calling these */
-/* int (*read_mixer)(struct ess_card *card, int index);*/
- void (*write_mixer)(struct ess_card *card,int mixer, unsigned int left,unsigned int right);
- int (*recmask_io)(struct ess_card *card,int rw,int mask);
- unsigned int mixer_state[SOUND_MIXER_NRDEVICES];
- } mix;
-
- int power_regs;
-
- int in_suspend;
- wait_queue_head_t suspend_queue;
-
- struct ess_state channels[MAX_DSPS];
- u16 maestro_map[NR_IDRS]; /* Register map */
- /* we have to store this junk so that we can come back from a
- suspend */
- u16 apu_map[NR_APUS][NR_APU_REGS]; /* contents of apu regs */
-
- /* this locks around the physical registers on the card */
- spinlock_t lock;
-
- /* memory for this card.. wavecache limited :(*/
- void *dmapages;
- int dmaorder;
-
- /* hardware resources */
- struct pci_dev *pcidev;
- u32 iobase;
- u32 irq;
-
- int bob_freq;
- char dsps_open;
-
- int dock_mute_vol;
-};
-
-static void set_mixer(struct ess_card *card,unsigned int mixer, unsigned int val );
-
-static unsigned
-ld2(unsigned int x)
-{
- unsigned r = 0;
-
- if (x >= 0x10000) {
- x >>= 16;
- r += 16;
- }
- if (x >= 0x100) {
- x >>= 8;
- r += 8;
- }
- if (x >= 0x10) {
- x >>= 4;
- r += 4;
- }
- if (x >= 4) {
- x >>= 2;
- r += 2;
- }
- if (x >= 2)
- r++;
- return r;
-}
-
-
-/* --------------------------------------------------------------------- */
-
-static void check_suspend(struct ess_card *card);
-
-/* --------------------------------------------------------------------- */
-
-
-/*
- * ESS Maestro AC97 codec programming interface.
- */
-
-static void maestro_ac97_set(struct ess_card *card, u8 cmd, u16 val)
-{
- int io = card->iobase;
- int i;
- /*
- * Wait for the codec bus to be free
- */
-
- check_suspend(card);
-
- for(i=0;i<10000;i++)
- {
- if(!(inb(io+ESS_AC97_INDEX)&1))
- break;
- }
- /*
- * Write the bus
- */
- outw(val, io+ESS_AC97_DATA);
- mdelay(1);
- outb(cmd, io+ESS_AC97_INDEX);
- mdelay(1);
-}
-
-static u16 maestro_ac97_get(struct ess_card *card, u8 cmd)
-{
- int io = card->iobase;
- int sanity=10000;
- u16 data;
- int i;
-
- check_suspend(card);
- /*
- * Wait for the codec bus to be free
- */
-
- for(i=0;i<10000;i++)
- {
- if(!(inb(io+ESS_AC97_INDEX)&1))
- break;
- }
-
- outb(cmd|0x80, io+ESS_AC97_INDEX);
- mdelay(1);
-
- while(inb(io+ESS_AC97_INDEX)&1)
- {
- sanity--;
- if(!sanity)
- {
- printk(KERN_ERR "maestro: ac97 codec timeout reading 0x%x.\n",cmd);
- return 0;
- }
- }
- data=inw(io+ESS_AC97_DATA);
- mdelay(1);
- return data;
-}
-
-/* OSS interface to the ac97s.. */
-
-#define AC97_STEREO_MASK (SOUND_MASK_VOLUME|\
- SOUND_MASK_PCM|SOUND_MASK_LINE|SOUND_MASK_CD|\
- SOUND_MASK_VIDEO|SOUND_MASK_LINE1|SOUND_MASK_IGAIN)
-
-#define AC97_SUPPORTED_MASK (AC97_STEREO_MASK | \
- SOUND_MASK_BASS|SOUND_MASK_TREBLE|SOUND_MASK_MIC|\
- SOUND_MASK_SPEAKER)
-
-#define AC97_RECORD_MASK (SOUND_MASK_MIC|\
- SOUND_MASK_CD| SOUND_MASK_VIDEO| SOUND_MASK_LINE1| SOUND_MASK_LINE|\
- SOUND_MASK_PHONEIN)
-
-#define supported_mixer(CARD,FOO) ( CARD->mix.supported_mixers & (1<<FOO) )
-
-/* this table has default mixer values for all OSS mixers.
- be sure to fill it in if you add oss mixers
- to anyone's supported mixer defines */
-
-static unsigned int mixer_defaults[SOUND_MIXER_NRDEVICES] = {
- [SOUND_MIXER_VOLUME] = 0x3232,
- [SOUND_MIXER_BASS] = 0x3232,
- [SOUND_MIXER_TREBLE] = 0x3232,
- [SOUND_MIXER_SPEAKER] = 0x3232,
- [SOUND_MIXER_MIC] = 0x8000, /* annoying */
- [SOUND_MIXER_LINE] = 0x3232,
- [SOUND_MIXER_CD] = 0x3232,
- [SOUND_MIXER_VIDEO] = 0x3232,
- [SOUND_MIXER_LINE1] = 0x3232,
- [SOUND_MIXER_PCM] = 0x3232,
- [SOUND_MIXER_IGAIN] = 0x3232
-};
-
-static struct ac97_mixer_hw {
- unsigned char offset;
- int scale;
-} ac97_hw[SOUND_MIXER_NRDEVICES]= {
- [SOUND_MIXER_VOLUME] = {0x02,63},
- [SOUND_MIXER_BASS] = {0x08,15},
- [SOUND_MIXER_TREBLE] = {0x08,15},
- [SOUND_MIXER_SPEAKER] = {0x0a,15},
- [SOUND_MIXER_MIC] = {0x0e,31},
- [SOUND_MIXER_LINE] = {0x10,31},
- [SOUND_MIXER_CD] = {0x12,31},
- [SOUND_MIXER_VIDEO] = {0x14,31},
- [SOUND_MIXER_LINE1] = {0x16,31},
- [SOUND_MIXER_PCM] = {0x18,31},
- [SOUND_MIXER_IGAIN] = {0x1c,15}
-};
-
-#if 0 /* *shrug* removed simply because we never used it.
- feel free to implement again if needed */
-
-/* reads the given OSS mixer from the ac97
- the caller must have insured that the ac97 knows
- about that given mixer, and should be holding a
- spinlock for the card */
-static int ac97_read_mixer(struct ess_card *card, int mixer)
-{
- u16 val;
- int ret=0;
- struct ac97_mixer_hw *mh = &ac97_hw[mixer];
-
- val = maestro_ac97_get(card, mh->offset);
-
- if(AC97_STEREO_MASK & (1<<mixer)) {
- /* nice stereo mixers .. */
- int left,right;
-
- left = (val >> 8) & 0x7f;
- right = val & 0x7f;
-
- if (mixer == SOUND_MIXER_IGAIN) {
- right = (right * 100) / mh->scale;
- left = (left * 100) / mh->scale;
- } else {
- right = 100 - ((right * 100) / mh->scale);
- left = 100 - ((left * 100) / mh->scale);
- }
-
- ret = left | (right << 8);
- } else if (mixer == SOUND_MIXER_SPEAKER) {
- ret = 100 - ((((val & 0x1e)>>1) * 100) / mh->scale);
- } else if (mixer == SOUND_MIXER_MIC) {
- ret = 100 - (((val & 0x1f) * 100) / mh->scale);
- /* the low bit is optional in the tone sliders and masking
- it lets is avoid the 0xf 'bypass'.. */
- } else if (mixer == SOUND_MIXER_BASS) {
- ret = 100 - ((((val >> 8) & 0xe) * 100) / mh->scale);
- } else if (mixer == SOUND_MIXER_TREBLE) {
- ret = 100 - (((val & 0xe) * 100) / mh->scale);
- }
-
- M_printk("read mixer %d (0x%x) %x -> %x\n",mixer,mh->offset,val,ret);
-
- return ret;
-}
-#endif
-
-/* write the OSS encoded volume to the given OSS encoded mixer,
- again caller's job to make sure all is well in arg land,
- call with spinlock held */
-
-/* linear scale -> log */
-static unsigned char lin2log[101] =
-{
-0, 0 , 15 , 23 , 30 , 34 , 38 , 42 , 45 , 47 ,
-50 , 52 , 53 , 55 , 57 , 58 , 60 , 61 , 62 ,
-63 , 65 , 66 , 67 , 68 , 69 , 69 , 70 , 71 ,
-72 , 73 , 73 , 74 , 75 , 75 , 76 , 77 , 77 ,
-78 , 78 , 79 , 80 , 80 , 81 , 81 , 82 , 82 ,
-83 , 83 , 84 , 84 , 84 , 85 , 85 , 86 , 86 ,
-87 , 87 , 87 , 88 , 88 , 88 , 89 , 89 , 89 ,
-90 , 90 , 90 , 91 , 91 , 91 , 92 , 92 , 92 ,
-93 , 93 , 93 , 94 , 94 , 94 , 94 , 95 , 95 ,
-95 , 95 , 96 , 96 , 96 , 96 , 97 , 97 , 97 ,
-97 , 98 , 98 , 98 , 98 , 99 , 99 , 99 , 99 , 99
-};
-
-static void ac97_write_mixer(struct ess_card *card,int mixer, unsigned int left, unsigned int right)
-{
- u16 val=0;
- struct ac97_mixer_hw *mh = &ac97_hw[mixer];
-
- M_printk("wrote mixer %d (0x%x) %d,%d",mixer,mh->offset,left,right);
-
- if(AC97_STEREO_MASK & (1<<mixer)) {
- /* stereo mixers, mute them if we can */
-
- if (mixer == SOUND_MIXER_IGAIN) {
- /* igain's slider is reversed.. */
- right = (right * mh->scale) / 100;
- left = (left * mh->scale) / 100;
- if ((left == 0) && (right == 0))
- val |= 0x8000;
- } else if (mixer == SOUND_MIXER_PCM || mixer == SOUND_MIXER_CD) {
- /* log conversion seems bad for them */
- if ((left == 0) && (right == 0))
- val = 0x8000;
- right = ((100 - right) * mh->scale) / 100;
- left = ((100 - left) * mh->scale) / 100;
- } else {
- /* log conversion for the stereo controls */
- if((left == 0) && (right == 0))
- val = 0x8000;
- right = ((100 - lin2log[right]) * mh->scale) / 100;
- left = ((100 - lin2log[left]) * mh->scale) / 100;
- }
-
- val |= (left << 8) | right;
-
- } else if (mixer == SOUND_MIXER_SPEAKER) {
- val = (((100 - left) * mh->scale) / 100) << 1;
- } else if (mixer == SOUND_MIXER_MIC) {
- val = maestro_ac97_get(card, mh->offset) & ~0x801f;
- val |= (((100 - left) * mh->scale) / 100);
- /* the low bit is optional in the tone sliders and masking
- it lets is avoid the 0xf 'bypass'.. */
- } else if (mixer == SOUND_MIXER_BASS) {
- val = maestro_ac97_get(card , mh->offset) & ~0x0f00;
- val |= ((((100 - left) * mh->scale) / 100) << 8) & 0x0e00;
- } else if (mixer == SOUND_MIXER_TREBLE) {
- val = maestro_ac97_get(card , mh->offset) & ~0x000f;
- val |= (((100 - left) * mh->scale) / 100) & 0x000e;
- }
-
- maestro_ac97_set(card , mh->offset, val);
-
- M_printk(" -> %x\n",val);
-}
-
-/* the following tables allow us to go from
- OSS <-> ac97 quickly. */
-
-enum ac97_recsettings {
- AC97_REC_MIC=0,
- AC97_REC_CD,
- AC97_REC_VIDEO,
- AC97_REC_AUX,
- AC97_REC_LINE,
- AC97_REC_STEREO, /* combination of all enabled outputs.. */
- AC97_REC_MONO, /*.. or the mono equivalent */
- AC97_REC_PHONE
-};
-
-static unsigned int ac97_oss_mask[] = {
- [AC97_REC_MIC] = SOUND_MASK_MIC,
- [AC97_REC_CD] = SOUND_MASK_CD,
- [AC97_REC_VIDEO] = SOUND_MASK_VIDEO,
- [AC97_REC_AUX] = SOUND_MASK_LINE1,
- [AC97_REC_LINE] = SOUND_MASK_LINE,
- [AC97_REC_PHONE] = SOUND_MASK_PHONEIN
-};
-
-/* indexed by bit position */
-static unsigned int ac97_oss_rm[] = {
- [SOUND_MIXER_MIC] = AC97_REC_MIC,
- [SOUND_MIXER_CD] = AC97_REC_CD,
- [SOUND_MIXER_VIDEO] = AC97_REC_VIDEO,
- [SOUND_MIXER_LINE1] = AC97_REC_AUX,
- [SOUND_MIXER_LINE] = AC97_REC_LINE,
- [SOUND_MIXER_PHONEIN] = AC97_REC_PHONE
-};
-
-/* read or write the recmask
- the ac97 can really have left and right recording
- inputs independently set, but OSS doesn't seem to
- want us to express that to the user.
- the caller guarantees that we have a supported bit set,
- and they must be holding the card's spinlock */
-static int
-ac97_recmask_io(struct ess_card *card, int read, int mask)
-{
- unsigned int val = ac97_oss_mask[ maestro_ac97_get(card, 0x1a) & 0x7 ];
-
- if (read) return val;
-
- /* oss can have many inputs, maestro can't. try
- to pick the 'new' one */
-
- if (mask != val) mask &= ~val;
-
- val = ffs(mask) - 1;
- val = ac97_oss_rm[val];
- val |= val << 8; /* set both channels */
-
- M_printk("maestro: setting ac97 recmask to 0x%x\n",val);
-
- maestro_ac97_set(card,0x1a,val);
-
- return 0;
-};
-
-/*
- * The Maestro can be wired to a standard AC97 compliant codec
- * (see www.intel.com for the pdf's on this), or to a PT101 codec
- * which appears to be the ES1918 (data sheet on the esstech.com.tw site)
- *
- * The PT101 setup is untested.
- */
-
-static u16 __init maestro_ac97_init(struct ess_card *card)
-{
- u16 vend1, vend2, caps;
-
- card->mix.supported_mixers = AC97_SUPPORTED_MASK;
- card->mix.stereo_mixers = AC97_STEREO_MASK;
- card->mix.record_sources = AC97_RECORD_MASK;
-/* card->mix.read_mixer = ac97_read_mixer;*/
- card->mix.write_mixer = ac97_write_mixer;
- card->mix.recmask_io = ac97_recmask_io;
-
- vend1 = maestro_ac97_get(card, 0x7c);
- vend2 = maestro_ac97_get(card, 0x7e);
-
- caps = maestro_ac97_get(card, 0x00);
-
- printk(KERN_INFO "maestro: AC97 Codec detected: v: 0x%2x%2x caps: 0x%x pwr: 0x%x\n",
- vend1,vend2,caps,maestro_ac97_get(card,0x26) & 0xf);
-
- if (! (caps & 0x4) ) {
- /* no bass/treble nobs */
- card->mix.supported_mixers &= ~(SOUND_MASK_BASS|SOUND_MASK_TREBLE);
- }
-
- /* XXX endianness, dork head. */
- /* vendor specifc bits.. */
- switch ((long)(vend1 << 16) | vend2) {
- case 0x545200ff: /* TriTech */
- /* no idea what this does */
- maestro_ac97_set(card,0x2a,0x0001);
- maestro_ac97_set(card,0x2c,0x0000);
- maestro_ac97_set(card,0x2c,0xffff);
- break;
-#if 0 /* i thought the problems I was seeing were with
- the 1921, but apparently they were with the pci board
- it was on, so this code is commented out.
- lets see if this holds true. */
- case 0x83847609: /* ESS 1921 */
- /* writing to 0xe (mic) or 0x1a (recmask) seems
- to hang this codec */
- card->mix.supported_mixers &= ~(SOUND_MASK_MIC);
- card->mix.record_sources = 0;
- card->mix.recmask_io = NULL;
-#if 0 /* don't ask. I have yet to see what these actually do. */
- maestro_ac97_set(card,0x76,0xABBA); /* o/~ Take a chance on me o/~ */
- udelay(20);
- maestro_ac97_set(card,0x78,0x3002);
- udelay(20);
- maestro_ac97_set(card,0x78,0x3802);
- udelay(20);
-#endif
- break;
-#endif
- default: break;
- }
-
- maestro_ac97_set(card, 0x1E, 0x0404);
- /* null misc stuff */
- maestro_ac97_set(card, 0x20, 0x0000);
-
- return 0;
-}
-
-#if 0 /* there has been 1 person on the planet with a pt101 that we
- know of. If they care, they can put this back in :) */
-static u16 maestro_pt101_init(struct ess_card *card,int iobase)
-{
- printk(KERN_INFO "maestro: PT101 Codec detected, initializing but _not_ installing mixer device.\n");
- /* who knows.. */
- maestro_ac97_set(iobase, 0x2A, 0x0001);
- maestro_ac97_set(iobase, 0x2C, 0x0000);
- maestro_ac97_set(iobase, 0x2C, 0xFFFF);
- maestro_ac97_set(iobase, 0x10, 0x9F1F);
- maestro_ac97_set(iobase, 0x12, 0x0808);
- maestro_ac97_set(iobase, 0x14, 0x9F1F);
- maestro_ac97_set(iobase, 0x16, 0x9F1F);
- maestro_ac97_set(iobase, 0x18, 0x0404);
- maestro_ac97_set(iobase, 0x1A, 0x0000);
- maestro_ac97_set(iobase, 0x1C, 0x0000);
- maestro_ac97_set(iobase, 0x02, 0x0404);
- maestro_ac97_set(iobase, 0x04, 0x0808);
- maestro_ac97_set(iobase, 0x0C, 0x801F);
- maestro_ac97_set(iobase, 0x0E, 0x801F);
- return 0;
-}
-#endif
-
-/* this is very magic, and very slow.. */
-static void
-maestro_ac97_reset(int ioaddr, struct pci_dev *pcidev)
-{
- u16 save_68;
- u16 w;
- u32 vend;
-
- outw( inw(ioaddr + 0x38) & 0xfffc, ioaddr + 0x38);
- outw( inw(ioaddr + 0x3a) & 0xfffc, ioaddr + 0x3a);
- outw( inw(ioaddr + 0x3c) & 0xfffc, ioaddr + 0x3c);
-
- /* reset the first codec */
- outw(0x0000, ioaddr+0x36);
- save_68 = inw(ioaddr+0x68);
- pci_read_config_word(pcidev, 0x58, &w); /* something magical with gpio and bus arb. */
- pci_read_config_dword(pcidev, PCI_SUBSYSTEM_VENDOR_ID, &vend);
- if( w & 0x1)
- save_68 |= 0x10;
- outw(0xfffe, ioaddr + 0x64); /* tickly gpio 0.. */
- outw(0x0001, ioaddr + 0x68);
- outw(0x0000, ioaddr + 0x60);
- udelay(20);
- outw(0x0001, ioaddr + 0x60);
- mdelay(20);
-
- outw(save_68 | 0x1, ioaddr + 0x68); /* now restore .. */
- outw( (inw(ioaddr + 0x38) & 0xfffc)|0x1, ioaddr + 0x38);
- outw( (inw(ioaddr + 0x3a) & 0xfffc)|0x1, ioaddr + 0x3a);
- outw( (inw(ioaddr + 0x3c) & 0xfffc)|0x1, ioaddr + 0x3c);
-
- /* now the second codec */
- outw(0x0000, ioaddr+0x36);
- outw(0xfff7, ioaddr + 0x64);
- save_68 = inw(ioaddr+0x68);
- outw(0x0009, ioaddr + 0x68);
- outw(0x0001, ioaddr + 0x60);
- udelay(20);
- outw(0x0009, ioaddr + 0x60);
- mdelay(500); /* .. ouch.. */
- outw( inw(ioaddr + 0x38) & 0xfffc, ioaddr + 0x38);
- outw( inw(ioaddr + 0x3a) & 0xfffc, ioaddr + 0x3a);
- outw( inw(ioaddr + 0x3c) & 0xfffc, ioaddr + 0x3c);
-
-#if 0 /* the loop here needs to be much better if we want it.. */
- M_printk("trying software reset\n");
- /* try and do a software reset */
- outb(0x80|0x7c, ioaddr + 0x30);
- for (w=0; ; w++) {
- if ((inw(ioaddr+ 0x30) & 1) == 0) {
- if(inb(ioaddr + 0x32) !=0) break;
-
- outb(0x80|0x7d, ioaddr + 0x30);
- if (((inw(ioaddr+ 0x30) & 1) == 0) && (inb(ioaddr + 0x32) !=0)) break;
- outb(0x80|0x7f, ioaddr + 0x30);
- if (((inw(ioaddr+ 0x30) & 1) == 0) && (inb(ioaddr + 0x32) !=0)) break;
- }
-
- if( w > 10000) {
- outb( inb(ioaddr + 0x37) | 0x08, ioaddr + 0x37); /* do a software reset */
- mdelay(500); /* oh my.. */
- outb( inb(ioaddr + 0x37) & ~0x08, ioaddr + 0x37);
- udelay(1);
- outw( 0x80, ioaddr+0x30);
- for(w = 0 ; w < 10000; w++) {
- if((inw(ioaddr + 0x30) & 1) ==0) break;
- }
- }
- }
-#endif
- if ( vend == NEC_VERSA_SUBID1 || vend == NEC_VERSA_SUBID2) {
- /* turn on external amp? */
- outw(0xf9ff, ioaddr + 0x64);
- outw(inw(ioaddr+0x68) | 0x600, ioaddr + 0x68);
- outw(0x0209, ioaddr + 0x60);
- }
-
- /* Turn on the 978 docking chip.
- First frob the "master output enable" bit,
- then set most of the playback volume control registers to max. */
- outb(inb(ioaddr+0xc0)|(1<<5), ioaddr+0xc0);
- outb(0xff, ioaddr+0xc3);
- outb(0xff, ioaddr+0xc4);
- outb(0xff, ioaddr+0xc6);
- outb(0xff, ioaddr+0xc8);
- outb(0x3f, ioaddr+0xcf);
- outb(0x3f, ioaddr+0xd0);
-}
-/*
- * Indirect register access. Not all registers are readable so we
- * need to keep register state ourselves
- */
-
-#define WRITEABLE_MAP 0xEFFFFF
-#define READABLE_MAP 0x64003F
-
-/*
- * The Maestro engineers were a little indirection happy. These indirected
- * registers themselves include indirect registers at another layer
- */
-
-static void __maestro_write(struct ess_card *card, u16 reg, u16 data)
-{
- long ioaddr = card->iobase;
-
- outw(reg, ioaddr+0x02);
- outw(data, ioaddr+0x00);
- if( reg >= NR_IDRS) printk("maestro: IDR %d out of bounds!\n",reg);
- else card->maestro_map[reg]=data;
-
-}
-
-static void maestro_write(struct ess_state *s, u16 reg, u16 data)
-{
- unsigned long flags;
-
- check_suspend(s->card);
- spin_lock_irqsave(&s->card->lock,flags);
-
- __maestro_write(s->card,reg,data);
-
- spin_unlock_irqrestore(&s->card->lock,flags);
-}
-
-static u16 __maestro_read(struct ess_card *card, u16 reg)
-{
- long ioaddr = card->iobase;
-
- outw(reg, ioaddr+0x02);
- return card->maestro_map[reg]=inw(ioaddr+0x00);
-}
-
-static u16 maestro_read(struct ess_state *s, u16 reg)
-{
- if(READABLE_MAP & (1<<reg))
- {
- unsigned long flags;
- check_suspend(s->card);
- spin_lock_irqsave(&s->card->lock,flags);
-
- __maestro_read(s->card,reg);
-
- spin_unlock_irqrestore(&s->card->lock,flags);
- }
- return s->card->maestro_map[reg];
-}
-
-/*
- * These routines handle accessing the second level indirections to the
- * wave ram.
- */
-
-/*
- * The register names are the ones ESS uses (see 104T31.ZIP)
- */
-
-#define IDR0_DATA_PORT 0x00
-#define IDR1_CRAM_POINTER 0x01
-#define IDR2_CRAM_DATA 0x02
-#define IDR3_WAVE_DATA 0x03
-#define IDR4_WAVE_PTR_LOW 0x04
-#define IDR5_WAVE_PTR_HI 0x05
-#define IDR6_TIMER_CTRL 0x06
-#define IDR7_WAVE_ROMRAM 0x07
-
-static void apu_index_set(struct ess_card *card, u16 index)
-{
- int i;
- __maestro_write(card, IDR1_CRAM_POINTER, index);
- for(i=0;i<1000;i++)
- if(__maestro_read(card, IDR1_CRAM_POINTER)==index)
- return;
- printk(KERN_WARNING "maestro: APU register select failed.\n");
-}
-
-static void apu_data_set(struct ess_card *card, u16 data)
-{
- int i;
- for(i=0;i<1000;i++)
- {
- if(__maestro_read(card, IDR0_DATA_PORT)==data)
- return;
- __maestro_write(card, IDR0_DATA_PORT, data);
- }
-}
-
-/*
- * This is the public interface for APU manipulation. It handles the
- * interlock to avoid two APU writes in parallel etc. Don't diddle
- * directly with the stuff above.
- */
-
-static void apu_set_register(struct ess_state *s, u16 channel, u8 reg, u16 data)
-{
- unsigned long flags;
-
- check_suspend(s->card);
-
- if(channel&ESS_CHAN_HARD)
- channel&=~ESS_CHAN_HARD;
- else
- {
- if(channel>5)
- printk("BAD CHANNEL %d.\n",channel);
- else
- channel = s->apu[channel];
- /* store based on real hardware apu/reg */
- s->card->apu_map[channel][reg]=data;
- }
- reg|=(channel<<4);
-
- /* hooray for double indirection!! */
- spin_lock_irqsave(&s->card->lock,flags);
-
- apu_index_set(s->card, reg);
- apu_data_set(s->card, data);
-
- spin_unlock_irqrestore(&s->card->lock,flags);
-}
-
-static u16 apu_get_register(struct ess_state *s, u16 channel, u8 reg)
-{
- unsigned long flags;
- u16 v;
-
- check_suspend(s->card);
-
- if(channel&ESS_CHAN_HARD)
- channel&=~ESS_CHAN_HARD;
- else
- channel = s->apu[channel];
-
- reg|=(channel<<4);
-
- spin_lock_irqsave(&s->card->lock,flags);
-
- apu_index_set(s->card, reg);
- v=__maestro_read(s->card, IDR0_DATA_PORT);
-
- spin_unlock_irqrestore(&s->card->lock,flags);
- return v;
-}
-
-
-/*
- * The wavecache buffers between the APUs and
- * pci bus mastering
- */
-
-static void wave_set_register(struct ess_state *s, u16 reg, u16 value)
-{
- long ioaddr = s->card->iobase;
- unsigned long flags;
- check_suspend(s->card);
-
- spin_lock_irqsave(&s->card->lock,flags);
-
- outw(reg, ioaddr+0x10);
- outw(value, ioaddr+0x12);
-
- spin_unlock_irqrestore(&s->card->lock,flags);
-}
-
-static u16 wave_get_register(struct ess_state *s, u16 reg)
-{
- long ioaddr = s->card->iobase;
- unsigned long flags;
- u16 value;
- check_suspend(s->card);
-
- spin_lock_irqsave(&s->card->lock,flags);
- outw(reg, ioaddr+0x10);
- value=inw(ioaddr+0x12);
- spin_unlock_irqrestore(&s->card->lock,flags);
-
- return value;
-}
-
-static void sound_reset(int ioaddr)
-{
- outw(0x2000, 0x18+ioaddr);
- udelay(1);
- outw(0x0000, 0x18+ioaddr);
- udelay(1);
-}
-
-/* sets the play formats of these apus, should be passed the already shifted format */
-static void set_apu_fmt(struct ess_state *s, int apu, int mode)
-{
- int apu_fmt = 0x10;
-
- if(!(mode&ESS_FMT_16BIT)) apu_fmt+=0x20;
- if((mode&ESS_FMT_STEREO)) apu_fmt+=0x10;
- s->apu_mode[apu] = apu_fmt;
- s->apu_mode[apu+1] = apu_fmt;
-}
-
-/* this only fixes the output apu mode to be later set by start_dac and
- company. output apu modes are set in ess_rec_setup */
-static void set_fmt(struct ess_state *s, unsigned char mask, unsigned char data)
-{
- s->fmt = (s->fmt & mask) | data;
- set_apu_fmt(s, 0, (s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK);
-}
-
-/* this is off by a little bit.. */
-static u32 compute_rate(struct ess_state *s, u32 freq)
-{
- u32 clock = clock_freq[s->card->card_type];
-
- freq = (freq * clocking)/48000;
-
- if (freq == 48000)
- return 0x10000;
-
- return ((freq / clock) <<16 )+
- (((freq % clock) << 16) / clock);
-}
-
-static void set_dac_rate(struct ess_state *s, unsigned int rate)
-{
- u32 freq;
- int fmt = (s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK;
-
- if (rate > 48000)
- rate = 48000;
- if (rate < 4000)
- rate = 4000;
-
- s->ratedac = rate;
-
- if(! (fmt & ESS_FMT_16BIT) && !(fmt & ESS_FMT_STEREO))
- rate >>= 1;
-
-/* M_printk("computing dac rate %d with mode %d\n",rate,s->fmt);*/
-
- freq = compute_rate(s, rate);
-
- /* Load the frequency, turn on 6dB */
- apu_set_register(s, 0, 2,(apu_get_register(s, 0, 2)&0x00FF)|
- ( ((freq&0xFF)<<8)|0x10 ));
- apu_set_register(s, 0, 3, freq>>8);
- apu_set_register(s, 1, 2,(apu_get_register(s, 1, 2)&0x00FF)|
- ( ((freq&0xFF)<<8)|0x10 ));
- apu_set_register(s, 1, 3, freq>>8);
-}
-
-static void set_adc_rate(struct ess_state *s, unsigned rate)
-{
- u32 freq;
-
- /* Sample Rate conversion APUs don't like 0x10000 for their rate */
- if (rate > 47999)
- rate = 47999;
- if (rate < 4000)
- rate = 4000;
-
- s->rateadc = rate;
-
- freq = compute_rate(s, rate);
-
- /* Load the frequency, turn on 6dB */
- apu_set_register(s, 2, 2,(apu_get_register(s, 2, 2)&0x00FF)|
- ( ((freq&0xFF)<<8)|0x10 ));
- apu_set_register(s, 2, 3, freq>>8);
- apu_set_register(s, 3, 2,(apu_get_register(s, 3, 2)&0x00FF)|
- ( ((freq&0xFF)<<8)|0x10 ));
- apu_set_register(s, 3, 3, freq>>8);
-
- /* fix mixer rate at 48khz. and its _must_ be 0x10000. */
- freq = 0x10000;
-
- apu_set_register(s, 4, 2,(apu_get_register(s, 4, 2)&0x00FF)|
- ( ((freq&0xFF)<<8)|0x10 ));
- apu_set_register(s, 4, 3, freq>>8);
- apu_set_register(s, 5, 2,(apu_get_register(s, 5, 2)&0x00FF)|
- ( ((freq&0xFF)<<8)|0x10 ));
- apu_set_register(s, 5, 3, freq>>8);
-}
-
-/* Stop our host of recording apus */
-static inline void stop_adc(struct ess_state *s)
-{
- /* XXX lets hope we don't have to lock around this */
- if (! (s->enable & ADC_RUNNING)) return;
-
- s->enable &= ~ADC_RUNNING;
- apu_set_register(s, 2, 0, apu_get_register(s, 2, 0)&0xFF0F);
- apu_set_register(s, 3, 0, apu_get_register(s, 3, 0)&0xFF0F);
- apu_set_register(s, 4, 0, apu_get_register(s, 2, 0)&0xFF0F);
- apu_set_register(s, 5, 0, apu_get_register(s, 3, 0)&0xFF0F);
-}
-
-/* stop output apus */
-static void stop_dac(struct ess_state *s)
-{
- /* XXX have to lock around this? */
- if (! (s->enable & DAC_RUNNING)) return;
-
- s->enable &= ~DAC_RUNNING;
- apu_set_register(s, 0, 0, apu_get_register(s, 0, 0)&0xFF0F);
- apu_set_register(s, 1, 0, apu_get_register(s, 1, 0)&0xFF0F);
-}
-
-static void start_dac(struct ess_state *s)
-{
- /* XXX locks? */
- if ( (s->dma_dac.mapped || s->dma_dac.count > 0) &&
- s->dma_dac.ready &&
- (! (s->enable & DAC_RUNNING)) ) {
-
- s->enable |= DAC_RUNNING;
-
- apu_set_register(s, 0, 0,
- (apu_get_register(s, 0, 0)&0xFF0F)|s->apu_mode[0]);
-
- if((s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_STEREO)
- apu_set_register(s, 1, 0,
- (apu_get_register(s, 1, 0)&0xFF0F)|s->apu_mode[1]);
- }
-}
-
-static void start_adc(struct ess_state *s)
-{
- /* XXX locks? */
- if ((s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
- && s->dma_adc.ready && (! (s->enable & ADC_RUNNING)) ) {
-
- s->enable |= ADC_RUNNING;
- apu_set_register(s, 2, 0,
- (apu_get_register(s, 2, 0)&0xFF0F)|s->apu_mode[2]);
- apu_set_register(s, 4, 0,
- (apu_get_register(s, 4, 0)&0xFF0F)|s->apu_mode[4]);
-
- if( s->fmt & (ESS_FMT_STEREO << ESS_ADC_SHIFT)) {
- apu_set_register(s, 3, 0,
- (apu_get_register(s, 3, 0)&0xFF0F)|s->apu_mode[3]);
- apu_set_register(s, 5, 0,
- (apu_get_register(s, 5, 0)&0xFF0F)|s->apu_mode[5]);
- }
-
- }
-}
-
-
-/*
- * Native play back driver
- */
-
-/* the mode passed should be already shifted and masked */
-static void
-ess_play_setup(struct ess_state *ess, int mode, u32 rate, void *buffer, int size)
-{
- u32 pa;
- u32 tmpval;
- int high_apu = 0;
- int channel;
-
- M_printk("mode=%d rate=%d buf=%p len=%d.\n",
- mode, rate, buffer, size);
-
- /* all maestro sizes are in 16bit words */
- size >>=1;
-
- if(mode&ESS_FMT_STEREO) {
- high_apu++;
- /* only 16/stereo gets size divided */
- if(mode&ESS_FMT_16BIT)
- size>>=1;
- }
-
- for(channel=0; channel <= high_apu; channel++)
- {
- pa = virt_to_bus(buffer);
-
- /* set the wavecache control reg */
- tmpval = (pa - 0x10) & 0xFFF8;
- if(!(mode & ESS_FMT_16BIT)) tmpval |= 4;
- if(mode & ESS_FMT_STEREO) tmpval |= 2;
- ess->apu_base[channel]=tmpval;
- wave_set_register(ess, ess->apu[channel]<<3, tmpval);
-
- pa -= virt_to_bus(ess->card->dmapages);
- pa>>=1; /* words */
-
- /* base offset of dma calcs when reading the pointer
- on the left one */
- if(!channel) ess->dma_dac.base = pa&0xFFFF;
-
- pa|=0x00400000; /* System RAM */
-
- /* XXX the 16bit here might not be needed.. */
- if((mode & ESS_FMT_STEREO) && (mode & ESS_FMT_16BIT)) {
- if(channel)
- pa|=0x00800000; /* Stereo */
- pa>>=1;
- }
-
-/* XXX think about endianess when writing these registers */
- M_printk("maestro: ess_play_setup: APU[%d] pa = 0x%x\n", ess->apu[channel], pa);
- /* start of sample */
- apu_set_register(ess, channel, 4, ((pa>>16)&0xFF)<<8);
- apu_set_register(ess, channel, 5, pa&0xFFFF);
- /* sample end */
- apu_set_register(ess, channel, 6, (pa+size)&0xFFFF);
- /* setting loop len == sample len */
- apu_set_register(ess, channel, 7, size);
-
- /* clear effects/env.. */
- apu_set_register(ess, channel, 8, 0x0000);
- /* set amp now to 0xd0 (?), low byte is 'amplitude dest'? */
- apu_set_register(ess, channel, 9, 0xD000);
-
- /* clear routing stuff */
- apu_set_register(ess, channel, 11, 0x0000);
- /* dma on, no envelopes, filter to all 1s) */
- apu_set_register(ess, channel, 0, 0x400F);
-
- if(mode&ESS_FMT_16BIT)
- ess->apu_mode[channel]=0x10;
- else
- ess->apu_mode[channel]=0x30;
-
- if(mode&ESS_FMT_STEREO) {
- /* set panning: left or right */
- apu_set_register(ess, channel, 10, 0x8F00 | (channel ? 0 : 0x10));
- ess->apu_mode[channel] += 0x10;
- } else
- apu_set_register(ess, channel, 10, 0x8F08);
- }
-
- /* clear WP interrupts */
- outw(1, ess->card->iobase+0x04);
- /* enable WP ints */
- outw(inw(ess->card->iobase+0x18)|4, ess->card->iobase+0x18);
-
- /* go team! */
- set_dac_rate(ess,rate);
- start_dac(ess);
-}
-
-/*
- * Native record driver
- */
-
-/* again, passed mode is alrady shifted/masked */
-static void
-ess_rec_setup(struct ess_state *ess, int mode, u32 rate, void *buffer, int size)
-{
- int apu_step = 2;
- int channel;
-
- M_printk("maestro: ess_rec_setup: mode=%d rate=%d buf=0x%p len=%d.\n",
- mode, rate, buffer, size);
-
- /* all maestro sizes are in 16bit words */
- size >>=1;
-
- /* we're given the full size of the buffer, but
- in stereo each channel will only use its half */
- if(mode&ESS_FMT_STEREO) {
- size >>=1;
- apu_step = 1;
- }
-
- /* APU assignments: 2 = mono/left SRC
- 3 = right SRC
- 4 = mono/left Input Mixer
- 5 = right Input Mixer */
- for(channel=2;channel<6;channel+=apu_step)
- {
- int i;
- int bsize, route;
- u32 pa;
- u32 tmpval;
-
- /* data seems to flow from the codec, through an apu into
- the 'mixbuf' bit of page, then through the SRC apu
- and out to the real 'buffer'. ok. sure. */
-
- if(channel & 0x04) {
- /* ok, we're an input mixer going from adc
- through the mixbuf to the other apus */
-
- if(!(channel & 0x01)) {
- pa = virt_to_bus(ess->mixbuf);
- } else {
- pa = virt_to_bus(ess->mixbuf + (PAGE_SIZE >> 4));
- }
-
- /* we source from a 'magic' apu */
- bsize = PAGE_SIZE >> 5; /* half of this channels alloc, in words */
- route = 0x14 + (channel - 4); /* parallel in crap, see maestro reg 0xC [8-11] */
- ess->apu_mode[channel] = 0x90; /* Input Mixer */
-
- } else {
- /* we're a rate converter taking
- input from the input apus and outputing it to
- system memory */
- if(!(channel & 0x01)) {
- pa = virt_to_bus(buffer);
- } else {
- /* right channel records its split half.
- *2 accommodates for rampant shifting earlier */
- pa = virt_to_bus(buffer + size*2);
- }
-
- ess->apu_mode[channel] = 0xB0; /* Sample Rate Converter */
-
- bsize = size;
- /* get input from inputing apu */
- route = channel + 2;
- }
-
- M_printk("maestro: ess_rec_setup: getting pa 0x%x from %d\n",pa,channel);
-
- /* set the wavecache control reg */
- tmpval = (pa - 0x10) & 0xFFF8;
- ess->apu_base[channel]=tmpval;
- wave_set_register(ess, ess->apu[channel]<<3, tmpval);
-
- pa -= virt_to_bus(ess->card->dmapages);
- pa>>=1; /* words */
-
- /* base offset of dma calcs when reading the pointer
- on this left one */
- if(channel==2) ess->dma_adc.base = pa&0xFFFF;
-
- pa|=0x00400000; /* bit 22 -> System RAM */
-
- M_printk("maestro: ess_rec_setup: APU[%d] pa = 0x%x size = 0x%x route = 0x%x\n",
- ess->apu[channel], pa, bsize, route);
-
- /* Begin loading the APU */
- for(i=0;i<15;i++) /* clear all PBRs */
- apu_set_register(ess, channel, i, 0x0000);
-
- apu_set_register(ess, channel, 0, 0x400F);
-
- /* need to enable subgroups.. and we should probably
- have different groups for different /dev/dsps.. */
- apu_set_register(ess, channel, 2, 0x8);
-
- /* Load the buffer into the wave engine */
- apu_set_register(ess, channel, 4, ((pa>>16)&0xFF)<<8);
- /* XXX reg is little endian.. */
- apu_set_register(ess, channel, 5, pa&0xFFFF);
- apu_set_register(ess, channel, 6, (pa+bsize)&0xFFFF);
- apu_set_register(ess, channel, 7, bsize);
-
- /* clear effects/env.. */
- apu_set_register(ess, channel, 8, 0x00F0);
-
- /* amplitude now? sure. why not. */
- apu_set_register(ess, channel, 9, 0x0000);
-
- /* set filter tune, radius, polar pan */
- apu_set_register(ess, channel, 10, 0x8F08);
-
- /* route input */
- apu_set_register(ess, channel, 11, route);
- }
-
- /* clear WP interrupts */
- outw(1, ess->card->iobase+0x04);
- /* enable WP ints */
- outw(inw(ess->card->iobase+0x18)|4, ess->card->iobase+0x18);
-
- /* let 'er rip */
- set_adc_rate(ess,rate);
- start_adc(ess);
-}
-/* --------------------------------------------------------------------- */
-
-static void set_dmaa(struct ess_state *s, unsigned int addr, unsigned int count)
-{
- M_printk("set_dmaa??\n");
-}
-
-static void set_dmac(struct ess_state *s, unsigned int addr, unsigned int count)
-{
- M_printk("set_dmac??\n");
-}
-
-/* Playback pointer */
-static inline unsigned get_dmaa(struct ess_state *s)
-{
- int offset;
-
- offset = apu_get_register(s,0,5);
-
-/* M_printk("dmaa: offset: %d, base: %d\n",offset,s->dma_dac.base); */
-
- offset-=s->dma_dac.base;
-
- return (offset&0xFFFE)<<1; /* hardware is in words */
-}
-
-/* Record pointer */
-static inline unsigned get_dmac(struct ess_state *s)
-{
- int offset;
-
- offset = apu_get_register(s,2,5);
-
-/* M_printk("dmac: offset: %d, base: %d\n",offset,s->dma_adc.base); */
-
- /* The offset is an address not a position relative to base */
- offset-=s->dma_adc.base;
-
- return (offset&0xFFFE)<<1; /* hardware is in words */
-}
-
-/*
- * Meet Bob, the timer...
- */
-
-static irqreturn_t ess_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-
-static void stop_bob(struct ess_state *s)
-{
- /* Mask IDR 11,17 */
- maestro_write(s, 0x11, maestro_read(s, 0x11)&~1);
- maestro_write(s, 0x17, maestro_read(s, 0x17)&~1);
-}
-
-/* eventually we could be clever and limit bob ints
- to the frequency at which our smallest duration
- chunks may expire */
-#define ESS_SYSCLK 50000000
-static void start_bob(struct ess_state *s)
-{
- int prescale;
- int divide;
-
- /* XXX make freq selector much smarter, see calc_bob_rate */
- int freq = 200;
-
- /* compute ideal interrupt frequency for buffer size & play rate */
- /* first, find best prescaler value to match freq */
- for(prescale=5;prescale<12;prescale++)
- if(freq > (ESS_SYSCLK>>(prescale+9)))
- break;
-
- /* next, back off prescaler whilst getting divider into optimum range */
- divide=1;
- while((prescale > 5) && (divide<32))
- {
- prescale--;
- divide <<=1;
- }
- divide>>=1;
-
- /* now fine-tune the divider for best match */
- for(;divide<31;divide++)
- if(freq >= ((ESS_SYSCLK>>(prescale+9))/(divide+1)))
- break;
-
- /* divide = 0 is illegal, but don't let prescale = 4! */
- if(divide == 0)
- {
- divide++;
- if(prescale>5)
- prescale--;
- }
-
- maestro_write(s, 6, 0x9000 | (prescale<<5) | divide); /* set reg */
-
- /* Now set IDR 11/17 */
- maestro_write(s, 0x11, maestro_read(s, 0x11)|1);
- maestro_write(s, 0x17, maestro_read(s, 0x17)|1);
-}
-/* --------------------------------------------------------------------- */
-
-/* this quickly calculates the frequency needed for bob
- and sets it if its different than what bob is
- currently running at. its called often so
- needs to be fairly quick. */
-#define BOB_MIN 50
-#define BOB_MAX 400
-static void calc_bob_rate(struct ess_state *s) {
-#if 0 /* this thing tries to set the frequency of bob such that
- there are 2 interrupts / buffer walked by the dac/adc. That
- is probably very wrong for people who actually care about
- mid buffer positioning. it should be calculated as bytes/interrupt
- and that needs to be decided :) so for now just use the static 150
- in start_bob.*/
-
- unsigned int dac_rate=2,adc_rate=1,newrate;
- static int israte=-1;
-
- if (s->dma_dac.fragsize == 0) dac_rate = BOB_MIN;
- else {
- dac_rate = (2 * s->ratedac * sample_size[(s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK]) /
- (s->dma_dac.fragsize) ;
- }
-
- if (s->dma_adc.fragsize == 0) adc_rate = BOB_MIN;
- else {
- adc_rate = (2 * s->rateadc * sample_size[(s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK]) /
- (s->dma_adc.fragsize) ;
- }
-
- if(dac_rate > adc_rate) newrate = adc_rate;
- else newrate=dac_rate;
-
- if(newrate > BOB_MAX) newrate = BOB_MAX;
- else {
- if(newrate < BOB_MIN)
- newrate = BOB_MIN;
- }
-
- if( israte != newrate) {
- printk("dac: %d adc: %d rate: %d\n",dac_rate,adc_rate,israte);
- israte=newrate;
- }
-#endif
-
-}
-
-static int
-prog_dmabuf(struct ess_state *s, unsigned rec)
-{
- struct dmabuf *db = rec ? &s->dma_adc : &s->dma_dac;
- unsigned rate = rec ? s->rateadc : s->ratedac;
- unsigned bytepersec;
- unsigned bufs;
- unsigned char fmt;
- unsigned long flags;
-
- spin_lock_irqsave(&s->lock, flags);
- fmt = s->fmt;
- if (rec) {
- stop_adc(s);
- fmt >>= ESS_ADC_SHIFT;
- } else {
- stop_dac(s);
- fmt >>= ESS_DAC_SHIFT;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- fmt &= ESS_FMT_MASK;
-
- db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
-
- /* this algorithm is a little nuts.. where did /1000 come from? */
- bytepersec = rate << sample_shift[fmt];
- bufs = PAGE_SIZE << db->buforder;
- if (db->ossfragshift) {
- if ((1000 << db->ossfragshift) < bytepersec)
- db->fragshift = ld2(bytepersec/1000);
- else
- db->fragshift = db->ossfragshift;
- } else {
- db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
- if (db->fragshift < 3)
- db->fragshift = 3;
- }
- db->numfrag = bufs >> db->fragshift;
- while (db->numfrag < 4 && db->fragshift > 3) {
- db->fragshift--;
- db->numfrag = bufs >> db->fragshift;
- }
- db->fragsize = 1 << db->fragshift;
- if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
- db->numfrag = db->ossmaxfrags;
- db->fragsamples = db->fragsize >> sample_shift[fmt];
- db->dmasize = db->numfrag << db->fragshift;
-
- M_printk("maestro: setup oss: numfrag: %d fragsize: %d dmasize: %d\n",db->numfrag,db->fragsize,db->dmasize);
-
- memset(db->rawbuf, (fmt & ESS_FMT_16BIT) ? 0 : 0x80, db->dmasize);
-
- spin_lock_irqsave(&s->lock, flags);
- if (rec)
- ess_rec_setup(s, fmt, s->rateadc, db->rawbuf, db->dmasize);
- else
- ess_play_setup(s, fmt, s->ratedac, db->rawbuf, db->dmasize);
-
- spin_unlock_irqrestore(&s->lock, flags);
- db->ready = 1;
-
- return 0;
-}
-
-static __inline__ void
-clear_advance(struct ess_state *s)
-{
- unsigned char c = ((s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_16BIT) ? 0 : 0x80;
-
- unsigned char *buf = s->dma_dac.rawbuf;
- unsigned bsize = s->dma_dac.dmasize;
- unsigned bptr = s->dma_dac.swptr;
- unsigned len = s->dma_dac.fragsize;
-
- if (bptr + len > bsize) {
- unsigned x = bsize - bptr;
- memset(buf + bptr, c, x);
- /* account for wrapping? */
- bptr = 0;
- len -= x;
- }
- memset(buf + bptr, c, len);
-}
-
-/* call with spinlock held! */
-static void
-ess_update_ptr(struct ess_state *s)
-{
- unsigned hwptr;
- int diff;
-
- /* update ADC pointer */
- if (s->dma_adc.ready) {
- /* oh boy should this all be re-written. everything in the current code paths think
- that the various counters/pointers are expressed in bytes to the user but we have
- two apus doing stereo stuff so we fix it up here.. it propagates to all the various
- counters from here. */
- if ( s->fmt & (ESS_FMT_STEREO << ESS_ADC_SHIFT)) {
- hwptr = (get_dmac(s)*2) % s->dma_adc.dmasize;
- } else {
- hwptr = get_dmac(s) % s->dma_adc.dmasize;
- }
- diff = (s->dma_adc.dmasize + hwptr - s->dma_adc.hwptr) % s->dma_adc.dmasize;
- s->dma_adc.hwptr = hwptr;
- s->dma_adc.total_bytes += diff;
- s->dma_adc.count += diff;
- if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
- wake_up(&s->dma_adc.wait);
- if (!s->dma_adc.mapped) {
- if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
- /* FILL ME
- wrindir(s, SV_CIENABLE, s->enable); */
- stop_adc(s);
- /* brute force everyone back in sync, sigh */
- s->dma_adc.count = 0;
- s->dma_adc.swptr = 0;
- s->dma_adc.hwptr = 0;
- s->dma_adc.error++;
- }
- }
- }
- /* update DAC pointer */
- if (s->dma_dac.ready) {
- hwptr = get_dmaa(s) % s->dma_dac.dmasize;
- /* the apu only reports the length it has seen, not the
- length of the memory that has been used (the WP
- knows that) */
- if ( ((s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK) == (ESS_FMT_STEREO|ESS_FMT_16BIT))
- hwptr<<=1;
-
- diff = (s->dma_dac.dmasize + hwptr - s->dma_dac.hwptr) % s->dma_dac.dmasize;
-/* M_printk("updating dac: hwptr: %d diff: %d\n",hwptr,diff);*/
- s->dma_dac.hwptr = hwptr;
- s->dma_dac.total_bytes += diff;
- if (s->dma_dac.mapped) {
- s->dma_dac.count += diff;
- if (s->dma_dac.count >= (signed)s->dma_dac.fragsize) {
- wake_up(&s->dma_dac.wait);
- }
- } else {
- s->dma_dac.count -= diff;
-/* M_printk("maestro: ess_update_ptr: diff: %d, count: %d\n", diff, s->dma_dac.count); */
- if (s->dma_dac.count <= 0) {
- M_printk("underflow! diff: %d count: %d hw: %d sw: %d\n", diff, s->dma_dac.count,
- hwptr, s->dma_dac.swptr);
- /* FILL ME
- wrindir(s, SV_CIENABLE, s->enable); */
- /* XXX how on earth can calling this with the lock held work.. */
- stop_dac(s);
- /* brute force everyone back in sync, sigh */
- s->dma_dac.count = 0;
- s->dma_dac.swptr = hwptr;
- s->dma_dac.error++;
- } else if (s->dma_dac.count <= (signed)s->dma_dac.fragsize && !s->dma_dac.endcleared) {
- clear_advance(s);
- s->dma_dac.endcleared = 1;
- }
- if (s->dma_dac.count + (signed)s->dma_dac.fragsize <= (signed)s->dma_dac.dmasize) {
- wake_up(&s->dma_dac.wait);
-/* printk("waking up DAC count: %d sw: %d hw: %d\n",s->dma_dac.count, s->dma_dac.swptr,
- hwptr);*/
- }
- }
- }
-}
-
-static irqreturn_t
-ess_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct ess_state *s;
- struct ess_card *c = (struct ess_card *)dev_id;
- int i;
- u32 event;
-
- if ( ! (event = inb(c->iobase+0x1A)) )
- return IRQ_NONE;
-
- outw(inw(c->iobase+4)&1, c->iobase+4);
-
-/* M_printk("maestro int: %x\n",event);*/
- if(event&(1<<6))
- {
- int x;
- enum {UP_EVT, DOWN_EVT, MUTE_EVT} vol_evt;
- int volume;
-
- /* Figure out which volume control button was pushed,
- based on differences from the default register
- values. */
- x = inb(c->iobase+0x1c);
- if (x&1) vol_evt = MUTE_EVT;
- else if (((x>>1)&7) > 4) vol_evt = UP_EVT;
- else vol_evt = DOWN_EVT;
-
- /* Reset the volume control registers. */
- outb(0x88, c->iobase+0x1c);
- outb(0x88, c->iobase+0x1d);
- outb(0x88, c->iobase+0x1e);
- outb(0x88, c->iobase+0x1f);
-
- /* Deal with the button press in a hammer-handed
- manner by adjusting the master mixer volume. */
- volume = c->mix.mixer_state[0] & 0xff;
- if (vol_evt == UP_EVT) {
- volume += 5;
- if (volume > 100)
- volume = 100;
- }
- else if (vol_evt == DOWN_EVT) {
- volume -= 5;
- if (volume < 0)
- volume = 0;
- } else {
- /* vol_evt == MUTE_EVT */
- if (volume == 0)
- volume = c->dock_mute_vol;
- else {
- c->dock_mute_vol = volume;
- volume = 0;
- }
- }
- set_mixer (c, 0, (volume << 8) | volume);
- }
-
- /* Ack all the interrupts. */
- outb(0xFF, c->iobase+0x1A);
-
- /*
- * Update the pointers for all APU's we are running.
- */
- for(i=0;i<NR_DSPS;i++)
- {
- s=&c->channels[i];
- if(s->dev_audio == -1)
- break;
- spin_lock(&s->lock);
- ess_update_ptr(s);
- spin_unlock(&s->lock);
- }
- return IRQ_HANDLED;
-}
-
-
-/* --------------------------------------------------------------------- */
-
-static const char invalid_magic[] = KERN_CRIT "maestro: invalid magic value in %s\n";
-
-#define VALIDATE_MAGIC(FOO,MAG) \
-({ \
- if (!(FOO) || (FOO)->magic != MAG) { \
- printk(invalid_magic,__FUNCTION__); \
- return -ENXIO; \
- } \
-})
-
-#define VALIDATE_STATE(a) VALIDATE_MAGIC(a,ESS_STATE_MAGIC)
-#define VALIDATE_CARD(a) VALIDATE_MAGIC(a,ESS_CARD_MAGIC)
-
-static void set_mixer(struct ess_card *card,unsigned int mixer, unsigned int val )
-{
- unsigned int left,right;
- /* cleanse input a little */
- right = ((val >> 8) & 0xff) ;
- left = (val & 0xff) ;
-
- if(right > 100) right = 100;
- if(left > 100) left = 100;
-
- card->mix.mixer_state[mixer]=(right << 8) | left;
- card->mix.write_mixer(card,mixer,left,right);
-}
-
-static void
-mixer_push_state(struct ess_card *card)
-{
- int i;
- for(i = 0 ; i < SOUND_MIXER_NRDEVICES ; i++) {
- if( ! supported_mixer(card,i)) continue;
-
- set_mixer(card,i,card->mix.mixer_state[i]);
- }
-}
-
-static int mixer_ioctl(struct ess_card *card, unsigned int cmd, unsigned long arg)
-{
- int i, val=0;
- unsigned long flags;
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
-
- VALIDATE_CARD(card);
- if (cmd == SOUND_MIXER_INFO) {
- mixer_info info;
- memset(&info, 0, sizeof(info));
- strlcpy(info.id, card_names[card->card_type], sizeof(info.id));
- strlcpy(info.name, card_names[card->card_type], sizeof(info.name));
- info.modify_counter = card->mix.modcnt;
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == SOUND_OLD_MIXER_INFO) {
- _old_mixer_info info;
- memset(&info, 0, sizeof(info));
- strlcpy(info.id, card_names[card->card_type], sizeof(info.id));
- strlcpy(info.name, card_names[card->card_type], sizeof(info.name));
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == OSS_GETVERSION)
- return put_user(SOUND_VERSION, p);
-
- if (_IOC_TYPE(cmd) != 'M' || _IOC_SIZE(cmd) != sizeof(int))
- return -EINVAL;
-
- if (_IOC_DIR(cmd) == _IOC_READ) {
- switch (_IOC_NR(cmd)) {
- case SOUND_MIXER_RECSRC: /* give them the current record source */
-
- if(!card->mix.recmask_io) {
- val = 0;
- } else {
- spin_lock_irqsave(&card->lock, flags);
- val = card->mix.recmask_io(card,1,0);
- spin_unlock_irqrestore(&card->lock, flags);
- }
- break;
-
- case SOUND_MIXER_DEVMASK: /* give them the supported mixers */
- val = card->mix.supported_mixers;
- break;
-
- case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
- val = card->mix.record_sources;
- break;
-
- case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
- val = card->mix.stereo_mixers;
- break;
-
- case SOUND_MIXER_CAPS:
- val = SOUND_CAP_EXCL_INPUT;
- break;
-
- default: /* read a specific mixer */
- i = _IOC_NR(cmd);
-
- if ( ! supported_mixer(card,i))
- return -EINVAL;
-
- /* do we ever want to touch the hardware? */
-/* spin_lock_irqsave(&card->lock, flags);
- val = card->mix.read_mixer(card,i);
- spin_unlock_irqrestore(&card->lock, flags);*/
-
- val = card->mix.mixer_state[i];
-/* M_printk("returned 0x%x for mixer %d\n",val,i);*/
-
- break;
- }
- return put_user(val, p);
- }
-
- if (_IOC_DIR(cmd) != (_IOC_WRITE|_IOC_READ))
- return -EINVAL;
-
- card->mix.modcnt++;
-
- if (get_user(val, p))
- return -EFAULT;
-
- switch (_IOC_NR(cmd)) {
- case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
-
- if (!card->mix.recmask_io) return -EINVAL;
- if(!val) return 0;
- if(! (val &= card->mix.record_sources)) return -EINVAL;
-
- spin_lock_irqsave(&card->lock, flags);
- card->mix.recmask_io(card,0,val);
- spin_unlock_irqrestore(&card->lock, flags);
- return 0;
-
- default:
- i = _IOC_NR(cmd);
-
- if ( ! supported_mixer(card,i))
- return -EINVAL;
-
- spin_lock_irqsave(&card->lock, flags);
- set_mixer(card,i,val);
- spin_unlock_irqrestore(&card->lock, flags);
-
- return 0;
- }
-}
-
-/* --------------------------------------------------------------------- */
-static int ess_open_mixdev(struct inode *inode, struct file *file)
-{
- unsigned int minor = iminor(inode);
- struct ess_card *card = NULL;
- struct pci_dev *pdev = NULL;
- struct pci_driver *drvr;
-
- while ((pdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
- drvr = pci_dev_driver (pdev);
- if (drvr == &maestro_pci_driver) {
- card = (struct ess_card*)pci_get_drvdata (pdev);
- if (!card)
- continue;
- if (card->dev_mixer == minor)
- break;
- }
- }
- if (!card)
- return -ENODEV;
- file->private_data = card;
- return nonseekable_open(inode, file);
-}
-
-static int ess_release_mixdev(struct inode *inode, struct file *file)
-{
- struct ess_card *card = (struct ess_card *)file->private_data;
-
- VALIDATE_CARD(card);
-
- return 0;
-}
-
-static int ess_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct ess_card *card = (struct ess_card *)file->private_data;
-
- VALIDATE_CARD(card);
-
- return mixer_ioctl(card, cmd, arg);
-}
-
-static /*const*/ struct file_operations ess_mixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .ioctl = ess_ioctl_mixdev,
- .open = ess_open_mixdev,
- .release = ess_release_mixdev,
-};
-
-/* --------------------------------------------------------------------- */
-
-static int drain_dac(struct ess_state *s, int nonblock)
-{
- DECLARE_WAITQUEUE(wait,current);
- unsigned long flags;
- int count;
- signed long tmo;
-
- if (s->dma_dac.mapped || !s->dma_dac.ready)
- return 0;
- current->state = TASK_INTERRUPTIBLE;
- add_wait_queue(&s->dma_dac.wait, &wait);
- for (;;) {
- /* XXX uhm.. questionable locking*/
- spin_lock_irqsave(&s->lock, flags);
- count = s->dma_dac.count;
- spin_unlock_irqrestore(&s->lock, flags);
- if (count <= 0)
- break;
- if (signal_pending(current))
- break;
- if (nonblock) {
- remove_wait_queue(&s->dma_dac.wait, &wait);
- current->state = TASK_RUNNING;
- return -EBUSY;
- }
- tmo = (count * HZ) / s->ratedac;
- tmo >>= sample_shift[(s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK];
- /* XXX this is just broken. someone is waking us up alot, or schedule_timeout is broken.
- or something. who cares. - zach */
- if (!schedule_timeout(tmo ? tmo : 1) && tmo)
- M_printk(KERN_DEBUG "maestro: dma timed out?? %ld\n",jiffies);
- }
- remove_wait_queue(&s->dma_dac.wait, &wait);
- current->state = TASK_RUNNING;
- if (signal_pending(current))
- return -ERESTARTSYS;
- return 0;
-}
-
-/* --------------------------------------------------------------------- */
-/* Zach sez: "god this is gross.." */
-static int
-comb_stereo(unsigned char *real_buffer,unsigned char *tmp_buffer, int offset,
- int count, int bufsize)
-{
- /* No such thing as stereo recording, so we
- use dual input mixers. which means we have to
- combine mono to stereo buffer. yuck.
-
- but we don't have to be able to work a byte at a time..*/
-
- unsigned char *so,*left,*right;
- int i;
-
- so = tmp_buffer;
- left = real_buffer + offset;
- right = real_buffer + bufsize/2 + offset;
-
-/* 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);*/
-
- for(i=count/4; i ; i--) {
- (*(so+2)) = *(right++);
- (*(so+3)) = *(right++);
- (*so) = *(left++);
- (*(so+1)) = *(left++);
- so+=4;
- }
-
- return 0;
-}
-
-/* in this loop, dma_adc.count signifies the amount of data thats waiting
- to be copied to the user's buffer. it is filled by the interrupt
- handler and drained by this loop. */
-static ssize_t
-ess_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
-{
- struct ess_state *s = (struct ess_state *)file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
- unsigned char *combbuf = NULL;
-
- VALIDATE_STATE(s);
- if (s->dma_adc.mapped)
- return -ENXIO;
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
- if(!(combbuf = kmalloc(count,GFP_KERNEL)))
- return -ENOMEM;
- ret = 0;
-
- calc_bob_rate(s);
-
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
- /* remember, all these things are expressed in bytes to be
- sent to the user.. hence the evil / 2 down below */
- swptr = s->dma_adc.swptr;
- cnt = s->dma_adc.dmasize-swptr;
- if (s->dma_adc.count < cnt)
- cnt = s->dma_adc.count;
- spin_unlock_irqrestore(&s->lock, flags);
-
- if (cnt > count)
- cnt = count;
-
- if ( cnt > 0 ) cnt &= ~3;
-
- if (cnt <= 0) {
- start_adc(s);
- if (file->f_flags & O_NONBLOCK)
- {
- ret = ret ? ret : -EAGAIN;
- goto rec_return_free;
- }
- if (!interruptible_sleep_on_timeout(&s->dma_adc.wait, HZ)) {
- if(! s->card->in_suspend) printk(KERN_DEBUG "maestro: read: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
- s->dma_adc.dmasize, s->dma_adc.fragsize, s->dma_adc.count,
- s->dma_adc.hwptr, s->dma_adc.swptr);
- stop_adc(s);
- spin_lock_irqsave(&s->lock, flags);
- set_dmac(s, virt_to_bus(s->dma_adc.rawbuf), s->dma_adc.numfrag << s->dma_adc.fragshift);
- /* program enhanced mode registers */
- /* FILL ME */
-/* wrindir(s, SV_CIDMACBASECOUNT1, (s->dma_adc.fragsamples-1) >> 8);
- wrindir(s, SV_CIDMACBASECOUNT0, s->dma_adc.fragsamples-1); */
- s->dma_adc.count = s->dma_adc.hwptr = s->dma_adc.swptr = 0;
- spin_unlock_irqrestore(&s->lock, flags);
- }
- if (signal_pending(current))
- {
- ret = ret ? ret : -ERESTARTSYS;
- goto rec_return_free;
- }
- continue;
- }
-
- if(s->fmt & (ESS_FMT_STEREO << ESS_ADC_SHIFT)) {
- /* swptr/2 so that we know the real offset in each apu's buffer */
- comb_stereo(s->dma_adc.rawbuf,combbuf,swptr/2,cnt,s->dma_adc.dmasize);
- if (copy_to_user(buffer, combbuf, cnt)) {
- ret = ret ? ret : -EFAULT;
- goto rec_return_free;
- }
- } else {
- if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
- ret = ret ? ret : -EFAULT;
- goto rec_return_free;
- }
- }
-
- swptr = (swptr + cnt) % s->dma_adc.dmasize;
- spin_lock_irqsave(&s->lock, flags);
- s->dma_adc.swptr = swptr;
- s->dma_adc.count -= cnt;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_adc(s);
- }
-
-rec_return_free:
- kfree(combbuf);
- return ret;
-}
-
-static ssize_t
-ess_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
-{
- struct ess_state *s = (struct ess_state *)file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
-
- VALIDATE_STATE(s);
- if (s->dma_dac.mapped)
- return -ENXIO;
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- ret = 0;
-
- calc_bob_rate(s);
-
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
-
- if (s->dma_dac.count < 0) {
- s->dma_dac.count = 0;
- s->dma_dac.swptr = s->dma_dac.hwptr;
- }
- swptr = s->dma_dac.swptr;
-
- cnt = s->dma_dac.dmasize-swptr;
-
- if (s->dma_dac.count + cnt > s->dma_dac.dmasize)
- cnt = s->dma_dac.dmasize - s->dma_dac.count;
-
- spin_unlock_irqrestore(&s->lock, flags);
-
- if (cnt > count)
- cnt = count;
-
- if (cnt <= 0) {
- start_dac(s);
- if (file->f_flags & O_NONBLOCK) {
- if(!ret) ret = -EAGAIN;
- goto return_free;
- }
- if (!interruptible_sleep_on_timeout(&s->dma_dac.wait, HZ)) {
- if(! s->card->in_suspend) printk(KERN_DEBUG "maestro: write: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
- s->dma_dac.dmasize, s->dma_dac.fragsize, s->dma_dac.count,
- s->dma_dac.hwptr, s->dma_dac.swptr);
- stop_dac(s);
- spin_lock_irqsave(&s->lock, flags);
- set_dmaa(s, virt_to_bus(s->dma_dac.rawbuf), s->dma_dac.numfrag << s->dma_dac.fragshift);
- /* program enhanced mode registers */
-/* wrindir(s, SV_CIDMAABASECOUNT1, (s->dma_dac.fragsamples-1) >> 8);
- wrindir(s, SV_CIDMAABASECOUNT0, s->dma_dac.fragsamples-1); */
- /* FILL ME */
- s->dma_dac.count = s->dma_dac.hwptr = s->dma_dac.swptr = 0;
- spin_unlock_irqrestore(&s->lock, flags);
- }
- if (signal_pending(current)) {
- if (!ret) ret = -ERESTARTSYS;
- goto return_free;
- }
- continue;
- }
- if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt)) {
- if (!ret) ret = -EFAULT;
- goto return_free;
- }
-/* printk("wrote %d bytes at sw: %d cnt: %d while hw: %d\n",cnt, swptr, s->dma_dac.count, s->dma_dac.hwptr);*/
-
- swptr = (swptr + cnt) % s->dma_dac.dmasize;
-
- spin_lock_irqsave(&s->lock, flags);
- s->dma_dac.swptr = swptr;
- s->dma_dac.count += cnt;
- s->dma_dac.endcleared = 0;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_dac(s);
- }
-return_free:
- return ret;
-}
-
-/* No kernel lock - we have our own spinlock */
-static unsigned int ess_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct ess_state *s = (struct ess_state *)file->private_data;
- unsigned long flags;
- unsigned int mask = 0;
-
- VALIDATE_STATE(s);
-
-/* In 0.14 prog_dmabuf always returns success anyway ... */
- if (file->f_mode & FMODE_WRITE) {
- if (!s->dma_dac.ready && prog_dmabuf(s, 0))
- return 0;
- }
- if (file->f_mode & FMODE_READ) {
- if (!s->dma_adc.ready && prog_dmabuf(s, 1))
- return 0;
- }
-
- if (file->f_mode & FMODE_WRITE)
- poll_wait(file, &s->dma_dac.wait, wait);
- if (file->f_mode & FMODE_READ)
- poll_wait(file, &s->dma_adc.wait, wait);
- spin_lock_irqsave(&s->lock, flags);
- ess_update_ptr(s);
- if (file->f_mode & FMODE_READ) {
- if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
- mask |= POLLIN | POLLRDNORM;
- }
- if (file->f_mode & FMODE_WRITE) {
- if (s->dma_dac.mapped) {
- if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
- mask |= POLLOUT | POLLWRNORM;
- } else {
- if ((signed)s->dma_dac.dmasize >= s->dma_dac.count + (signed)s->dma_dac.fragsize)
- mask |= POLLOUT | POLLWRNORM;
- }
- }
- spin_unlock_irqrestore(&s->lock, flags);
- return mask;
-}
-
-static int ess_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct ess_state *s = (struct ess_state *)file->private_data;
- struct dmabuf *db;
- int ret = -EINVAL;
- unsigned long size;
-
- VALIDATE_STATE(s);
- lock_kernel();
- if (vma->vm_flags & VM_WRITE) {
- if ((ret = prog_dmabuf(s, 1)) != 0)
- goto out;
- db = &s->dma_dac;
- } else
-#if 0
- /* if we can have the wp/wc do the combining
- we can turn this back on. */
- if (vma->vm_flags & VM_READ) {
- if ((ret = prog_dmabuf(s, 0)) != 0)
- goto out;
- db = &s->dma_adc;
- } else
-#endif
- goto out;
- ret = -EINVAL;
- if (vma->vm_pgoff != 0)
- goto out;
- size = vma->vm_end - vma->vm_start;
- if (size > (PAGE_SIZE << db->buforder))
- goto out;
- ret = -EAGAIN;
- if (remap_pfn_range(vma, vma->vm_start,
- virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
- size, vma->vm_page_prot))
- goto out;
- db->mapped = 1;
- ret = 0;
-out:
- unlock_kernel();
- return ret;
-}
-
-static int ess_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct ess_state *s = (struct ess_state *)file->private_data;
- unsigned long flags;
- audio_buf_info abinfo;
- count_info cinfo;
- int val, mapped, ret;
- unsigned char fmtm, fmtd;
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
-
-/* printk("maestro: ess_ioctl: cmd %d\n", cmd);*/
-
- VALIDATE_STATE(s);
- mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
- ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
- switch (cmd) {
- case OSS_GETVERSION:
- return put_user(SOUND_VERSION, p);
-
- case SNDCTL_DSP_SYNC:
- if (file->f_mode & FMODE_WRITE)
- return drain_dac(s, file->f_flags & O_NONBLOCK);
- return 0;
-
- case SNDCTL_DSP_SETDUPLEX:
- /* XXX fix */
- return 0;
-
- case SNDCTL_DSP_GETCAPS:
- return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
-
- case SNDCTL_DSP_RESET:
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- synchronize_irq(s->card->pcidev->irq);
- s->dma_dac.swptr = s->dma_dac.hwptr = s->dma_dac.count = s->dma_dac.total_bytes = 0;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- synchronize_irq(s->card->pcidev->irq);
- s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
- }
- return 0;
-
- case SNDCTL_DSP_SPEED:
- if (get_user(val, p))
- return -EFAULT;
- if (val >= 0) {
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- set_adc_rate(s, val);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- set_dac_rate(s, val);
- }
- }
- return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
-
- case SNDCTL_DSP_STEREO:
- if (get_user(val, p))
- return -EFAULT;
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val)
- fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_STEREO << ESS_ADC_SHIFT);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val)
- fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_STEREO << ESS_DAC_SHIFT);
- }
- set_fmt(s, fmtm, fmtd);
- return 0;
-
- case SNDCTL_DSP_CHANNELS:
- if (get_user(val, p))
- return -EFAULT;
- if (val != 0) {
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val >= 2)
- fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_STEREO << ESS_ADC_SHIFT);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val >= 2)
- fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_STEREO << ESS_DAC_SHIFT);
- }
- set_fmt(s, fmtm, fmtd);
- }
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_STEREO << ESS_ADC_SHIFT)
- : (ESS_FMT_STEREO << ESS_DAC_SHIFT))) ? 2 : 1, p);
-
- case SNDCTL_DSP_GETFMTS: /* Returns a mask */
- return put_user(AFMT_U8|AFMT_S16_LE, p);
-
- case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
- if (get_user(val, p))
- return -EFAULT;
- if (val != AFMT_QUERY) {
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- /* fixed at 16bit for now */
- fmtd |= ESS_FMT_16BIT << ESS_ADC_SHIFT;
-#if 0
- if (val == AFMT_S16_LE)
- fmtd |= ESS_FMT_16BIT << ESS_ADC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_16BIT << ESS_ADC_SHIFT);
-#endif
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val == AFMT_S16_LE)
- fmtd |= ESS_FMT_16BIT << ESS_DAC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_16BIT << ESS_DAC_SHIFT);
- }
- set_fmt(s, fmtm, fmtd);
- }
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ?
- (ESS_FMT_16BIT << ESS_ADC_SHIFT)
- : (ESS_FMT_16BIT << ESS_DAC_SHIFT))) ?
- AFMT_S16_LE :
- AFMT_U8,
- p);
-
- case SNDCTL_DSP_POST:
- return 0;
-
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
- if ((file->f_mode & FMODE_READ) && (s->enable & ADC_RUNNING))
- val |= PCM_ENABLE_INPUT;
- if ((file->f_mode & FMODE_WRITE) && (s->enable & DAC_RUNNING))
- val |= PCM_ENABLE_OUTPUT;
- return put_user(val, p);
-
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, p))
- return -EFAULT;
- if (file->f_mode & FMODE_READ) {
- if (val & PCM_ENABLE_INPUT) {
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- start_adc(s);
- } else
- stop_adc(s);
- }
- if (file->f_mode & FMODE_WRITE) {
- if (val & PCM_ENABLE_OUTPUT) {
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- start_dac(s);
- } else
- stop_dac(s);
- }
- return 0;
-
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- spin_lock_irqsave(&s->lock, flags);
- ess_update_ptr(s);
- abinfo.fragsize = s->dma_dac.fragsize;
- abinfo.bytes = s->dma_dac.dmasize - s->dma_dac.count;
- abinfo.fragstotal = s->dma_dac.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
- spin_unlock_irqrestore(&s->lock, flags);
- return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- spin_lock_irqsave(&s->lock, flags);
- ess_update_ptr(s);
- abinfo.fragsize = s->dma_adc.fragsize;
- abinfo.bytes = s->dma_adc.count;
- abinfo.fragstotal = s->dma_adc.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
- spin_unlock_irqrestore(&s->lock, flags);
- return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- return 0;
-
- case SNDCTL_DSP_GETODELAY:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- spin_lock_irqsave(&s->lock, flags);
- ess_update_ptr(s);
- val = s->dma_dac.count;
- spin_unlock_irqrestore(&s->lock, flags);
- return put_user(val, p);
-
- case SNDCTL_DSP_GETIPTR:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- spin_lock_irqsave(&s->lock, flags);
- ess_update_ptr(s);
- cinfo.bytes = s->dma_adc.total_bytes;
- cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
- cinfo.ptr = s->dma_adc.hwptr;
- if (s->dma_adc.mapped)
- s->dma_adc.count &= s->dma_adc.fragsize-1;
- spin_unlock_irqrestore(&s->lock, flags);
- if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
- return -EFAULT;
- return 0;
-
- case SNDCTL_DSP_GETOPTR:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- spin_lock_irqsave(&s->lock, flags);
- ess_update_ptr(s);
- cinfo.bytes = s->dma_dac.total_bytes;
- cinfo.blocks = s->dma_dac.count >> s->dma_dac.fragshift;
- cinfo.ptr = s->dma_dac.hwptr;
- if (s->dma_dac.mapped)
- s->dma_dac.count &= s->dma_dac.fragsize-1;
- spin_unlock_irqrestore(&s->lock, flags);
- if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
- return -EFAULT;
- return 0;
-
- case SNDCTL_DSP_GETBLKSIZE:
- if (file->f_mode & FMODE_WRITE) {
- if ((val = prog_dmabuf(s, 0)))
- return val;
- return put_user(s->dma_dac.fragsize, p);
- }
- if ((val = prog_dmabuf(s, 1)))
- return val;
- return put_user(s->dma_adc.fragsize, p);
-
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, p))
- return -EFAULT;
- M_printk("maestro: SETFRAGMENT: %0x\n",val);
- if (file->f_mode & FMODE_READ) {
- s->dma_adc.ossfragshift = val & 0xffff;
- s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
- if (s->dma_adc.ossfragshift < 4)
- s->dma_adc.ossfragshift = 4;
- if (s->dma_adc.ossfragshift > 15)
- s->dma_adc.ossfragshift = 15;
- if (s->dma_adc.ossmaxfrags < 4)
- s->dma_adc.ossmaxfrags = 4;
- }
- if (file->f_mode & FMODE_WRITE) {
- s->dma_dac.ossfragshift = val & 0xffff;
- s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff;
- if (s->dma_dac.ossfragshift < 4)
- s->dma_dac.ossfragshift = 4;
- if (s->dma_dac.ossfragshift > 15)
- s->dma_dac.ossfragshift = 15;
- if (s->dma_dac.ossmaxfrags < 4)
- s->dma_dac.ossmaxfrags = 4;
- }
- return 0;
-
- case SNDCTL_DSP_SUBDIVIDE:
- if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
- (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
- return -EINVAL;
- if (get_user(val, p))
- return -EFAULT;
- if (val != 1 && val != 2 && val != 4)
- return -EINVAL;
- if (file->f_mode & FMODE_READ)
- s->dma_adc.subdivision = val;
- if (file->f_mode & FMODE_WRITE)
- s->dma_dac.subdivision = val;
- return 0;
-
- case SOUND_PCM_READ_RATE:
- return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
-
- case SOUND_PCM_READ_CHANNELS:
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_STEREO << ESS_ADC_SHIFT)
- : (ESS_FMT_STEREO << ESS_DAC_SHIFT))) ? 2 : 1, p);
-
- case SOUND_PCM_READ_BITS:
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_16BIT << ESS_ADC_SHIFT)
- : (ESS_FMT_16BIT << ESS_DAC_SHIFT))) ? 16 : 8, p);
-
- case SOUND_PCM_WRITE_FILTER:
- case SNDCTL_DSP_SETSYNCRO:
- case SOUND_PCM_READ_FILTER:
- return -EINVAL;
-
- }
- return -EINVAL;
-}
-
-static void
-set_base_registers(struct ess_state *s,void *vaddr)
-{
- unsigned long packed_phys = virt_to_bus(vaddr)>>12;
- wave_set_register(s, 0x01FC , packed_phys);
- wave_set_register(s, 0x01FD , packed_phys);
- wave_set_register(s, 0x01FE , packed_phys);
- wave_set_register(s, 0x01FF , packed_phys);
-}
-
-/*
- * this guy makes sure we're in the right power
- * state for what we want to be doing
- */
-static void maestro_power(struct ess_card *card, int tostate)
-{
- u16 active_mask = acpi_state_mask[tostate];
- u8 state;
-
- if(!use_pm) return;
-
- pci_read_config_byte(card->pcidev, card->power_regs+0x4, &state);
- state&=3;
-
- /* make sure we're in the right state */
- if(state != tostate) {
- M_printk(KERN_WARNING "maestro: dev %02x:%02x.%x switching from D%d to D%d\n",
- card->pcidev->bus->number,
- PCI_SLOT(card->pcidev->devfn),
- PCI_FUNC(card->pcidev->devfn),
- state,tostate);
- pci_write_config_byte(card->pcidev, card->power_regs+0x4, tostate);
- }
-
- /* and make sure the units we care about are on
- XXX we might want to do this before state flipping? */
- pci_write_config_word(card->pcidev, 0x54, ~ active_mask);
- pci_write_config_word(card->pcidev, 0x56, ~ active_mask);
-}
-
-/* we allocate a large power of two for all our memory.
- this is cut up into (not to scale :):
- |silly fifo word | 512byte mixbuf per adc | dac/adc * channels |
-*/
-static int
-allocate_buffers(struct ess_state *s)
-{
- void *rawbuf=NULL;
- int order,i;
- struct page *page, *pend;
-
- /* alloc as big a chunk as we can */
- for (order = (dsps_order + (16-PAGE_SHIFT) + 1); order >= (dsps_order + 2 + 1); order--)
- if((rawbuf = (void *)__get_free_pages(GFP_KERNEL|GFP_DMA, order)))
- break;
-
- if (!rawbuf)
- return 1;
-
- M_printk("maestro: allocated %ld (%d) bytes at %p\n",PAGE_SIZE<<order,order, rawbuf);
-
- if ((virt_to_bus(rawbuf) + (PAGE_SIZE << order) - 1) & ~((1<<28)-1)) {
- printk(KERN_ERR "maestro: DMA buffer beyond 256MB! busaddr 0x%lx size %ld\n",
- virt_to_bus(rawbuf), PAGE_SIZE << order);
- kfree(rawbuf);
- return 1;
- }
-
- s->card->dmapages = rawbuf;
- s->card->dmaorder = order;
-
- for(i=0;i<NR_DSPS;i++) {
- struct ess_state *ess = &s->card->channels[i];
-
- if(ess->dev_audio == -1)
- continue;
-
- ess->dma_dac.ready = s->dma_dac.mapped = 0;
- ess->dma_adc.ready = s->dma_adc.mapped = 0;
- ess->dma_adc.buforder = ess->dma_dac.buforder = order - 1 - dsps_order - 1;
-
- /* offset dac and adc buffers starting half way through and then at each [da][ad]c's
- order's intervals.. */
- ess->dma_dac.rawbuf = rawbuf + (PAGE_SIZE<<(order-1)) + (i * ( PAGE_SIZE << (ess->dma_dac.buforder + 1 )));
- ess->dma_adc.rawbuf = ess->dma_dac.rawbuf + ( PAGE_SIZE << ess->dma_dac.buforder);
- /* offset mixbuf by a mixbuf so that the lame status fifo can
- happily scribble away.. */
- ess->mixbuf = rawbuf + (512 * (i+1));
-
- M_printk("maestro: setup apu %d: dac: %p adc: %p mix: %p\n",i,ess->dma_dac.rawbuf,
- ess->dma_adc.rawbuf, ess->mixbuf);
-
- }
-
- /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
- pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1);
- for (page = virt_to_page(rawbuf); page <= pend; page++)
- SetPageReserved(page);
-
- return 0;
-}
-static void
-free_buffers(struct ess_state *s)
-{
- struct page *page, *pend;
-
- s->dma_dac.rawbuf = s->dma_adc.rawbuf = NULL;
- s->dma_dac.mapped = s->dma_adc.mapped = 0;
- s->dma_dac.ready = s->dma_adc.ready = 0;
-
- M_printk("maestro: freeing %p\n",s->card->dmapages);
- /* undo marking the pages as reserved */
-
- pend = virt_to_page(s->card->dmapages + (PAGE_SIZE << s->card->dmaorder) - 1);
- for (page = virt_to_page(s->card->dmapages); page <= pend; page++)
- ClearPageReserved(page);
-
- free_pages((unsigned long)s->card->dmapages,s->card->dmaorder);
- s->card->dmapages = NULL;
-}
-
-static int
-ess_open(struct inode *inode, struct file *file)
-{
- unsigned int minor = iminor(inode);
- struct ess_state *s = NULL;
- unsigned char fmtm = ~0, fmts = 0;
- struct pci_dev *pdev = NULL;
- /*
- * Scan the cards and find the channel. We only
- * do this at open time so it is ok
- */
-
- while ((pdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, pdev)) != NULL) {
- struct ess_card *c;
- struct pci_driver *drvr;
-
- drvr = pci_dev_driver (pdev);
- if (drvr == &maestro_pci_driver) {
- int i;
- struct ess_state *sp;
-
- c = (struct ess_card*)pci_get_drvdata (pdev);
- if (!c)
- continue;
- for(i=0;i<NR_DSPS;i++)
- {
- sp=&c->channels[i];
- if(sp->dev_audio < 0)
- continue;
- if((sp->dev_audio ^ minor) & ~0xf)
- continue;
- s=sp;
- }
- }
- }
- if (!s)
- return -ENODEV;
-
- VALIDATE_STATE(s);
- file->private_data = s;
- /* wait for device to become free */
- mutex_lock(&s->open_mutex);
- while (s->open_mode & file->f_mode) {
- if (file->f_flags & O_NONBLOCK) {
- mutex_unlock(&s->open_mutex);
- return -EWOULDBLOCK;
- }
- mutex_unlock(&s->open_mutex);
- interruptible_sleep_on(&s->open_wait);
- if (signal_pending(current))
- return -ERESTARTSYS;
- mutex_lock(&s->open_mutex);
- }
-
- /* under semaphore.. */
- if ((s->card->dmapages==NULL) && allocate_buffers(s)) {
- mutex_unlock(&s->open_mutex);
- return -ENOMEM;
- }
-
- /* we're covered by the open_mutex */
- if( ! s->card->dsps_open ) {
- maestro_power(s->card,ACPI_D0);
- start_bob(s);
- }
- s->card->dsps_open++;
- M_printk("maestro: open, %d bobs now\n",s->card->dsps_open);
-
- /* ok, lets write WC base regs now that we've
- powered up the chip */
- M_printk("maestro: writing 0x%lx (bus 0x%lx) to the wp\n",virt_to_bus(s->card->dmapages),
- ((virt_to_bus(s->card->dmapages))&0xFFE00000)>>12);
- set_base_registers(s,s->card->dmapages);
-
- if (file->f_mode & FMODE_READ) {
-/*
- fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_ADC_SHIFT);
- if ((minor & 0xf) == SND_DEV_DSP16)
- fmts |= ESS_FMT_16BIT << ESS_ADC_SHIFT; */
-
- fmtm &= ~((ESS_FMT_STEREO|ESS_FMT_16BIT) << ESS_ADC_SHIFT);
- fmts = (ESS_FMT_STEREO|ESS_FMT_16BIT) << ESS_ADC_SHIFT;
-
- s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
- set_adc_rate(s, 8000);
- }
- if (file->f_mode & FMODE_WRITE) {
- fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_DAC_SHIFT);
- if ((minor & 0xf) == SND_DEV_DSP16)
- fmts |= ESS_FMT_16BIT << ESS_DAC_SHIFT;
-
- s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0;
- set_dac_rate(s, 8000);
- }
- set_fmt(s, fmtm, fmts);
- s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
-
- mutex_unlock(&s->open_mutex);
- return nonseekable_open(inode, file);
-}
-
-static int
-ess_release(struct inode *inode, struct file *file)
-{
- struct ess_state *s = (struct ess_state *)file->private_data;
-
- VALIDATE_STATE(s);
- lock_kernel();
- if (file->f_mode & FMODE_WRITE)
- drain_dac(s, file->f_flags & O_NONBLOCK);
- mutex_lock(&s->open_mutex);
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- }
-
- s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
- /* we're covered by the open_mutex */
- M_printk("maestro: %d dsps now alive\n",s->card->dsps_open-1);
- if( --s->card->dsps_open <= 0) {
- s->card->dsps_open = 0;
- stop_bob(s);
- free_buffers(s);
- maestro_power(s->card,ACPI_D2);
- }
- mutex_unlock(&s->open_mutex);
- wake_up(&s->open_wait);
- unlock_kernel();
- return 0;
-}
-
-static struct file_operations ess_audio_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = ess_read,
- .write = ess_write,
- .poll = ess_poll,
- .ioctl = ess_ioctl,
- .mmap = ess_mmap,
- .open = ess_open,
- .release = ess_release,
-};
-
-static int
-maestro_config(struct ess_card *card)
-{
- struct pci_dev *pcidev = card->pcidev;
- struct ess_state *ess = &card->channels[0];
- int apu,iobase = card->iobase;
- u16 w;
- u32 n;
-
- /* We used to muck around with pci config space that
- * we had no business messing with. We don't know enough
- * about the machine to know which DMA mode is appropriate,
- * etc. We were guessing wrong on some machines and making
- * them unhappy. We now trust in the BIOS to do things right,
- * which almost certainly means a new host of problems will
- * arise with broken BIOS implementations. screw 'em.
- * We're already intolerant of machines that don't assign
- * IRQs.
- */
-
- /* do config work at full power */
- maestro_power(card,ACPI_D0);
-
- pci_read_config_word(pcidev, 0x50, &w);
-
- w&=~(1<<5); /* Don't swap left/right (undoc)*/
-
- pci_write_config_word(pcidev, 0x50, w);
-
- pci_read_config_word(pcidev, 0x52, &w);
- w&=~(1<<15); /* Turn off internal clock multiplier */
- /* XXX how do we know which to use? */
- w&=~(1<<14); /* External clock */
-
- w|= (1<<7); /* Hardware volume control on */
- w|= (1<<6); /* Debounce off: easier to push the HWV buttons. */
- w&=~(1<<5); /* GPIO 4:5 */
- w|= (1<<4); /* Disconnect from the CHI. Enabling this made a dell 7500 work. */
- w&=~(1<<2); /* MIDI fix off (undoc) */
- w&=~(1<<1); /* reserved, always write 0 */
- pci_write_config_word(pcidev, 0x52, w);
-
- /*
- * Legacy mode
- */
-
- pci_read_config_word(pcidev, 0x40, &w);
- w|=(1<<15); /* legacy decode off */
- w&=~(1<<14); /* Disable SIRQ */
- w&=~(0x1f); /* disable mpu irq/io, game port, fm, SB */
-
- pci_write_config_word(pcidev, 0x40, w);
-
- /* Set up 978 docking control chip. */
- pci_read_config_word(pcidev, 0x58, &w);
- w|=1<<2; /* Enable 978. */
- w|=1<<3; /* Turn on 978 hardware volume control. */
- w&=~(1<<11); /* Turn on 978 mixer volume control. */
- pci_write_config_word(pcidev, 0x58, w);
-
- sound_reset(iobase);
-
- /*
- * Ring Bus Setup
- */
-
- /* setup usual 0x34 stuff.. 0x36 may be chip specific */
- outw(0xC090, iobase+0x34); /* direct sound, stereo */
- udelay(20);
- outw(0x3000, iobase+0x36); /* direct sound, stereo */
- udelay(20);
-
-
- /*
- * Reset the CODEC
- */
-
- maestro_ac97_reset(iobase,pcidev);
-
- /*
- * Ring Bus Setup
- */
-
- n=inl(iobase+0x34);
- n&=~0xF000;
- n|=12<<12; /* Direct Sound, Stereo */
- outl(n, iobase+0x34);
-
- n=inl(iobase+0x34);
- n&=~0x0F00; /* Modem off */
- outl(n, iobase+0x34);
-
- n=inl(iobase+0x34);
- n&=~0x00F0;
- n|=9<<4; /* DAC, Stereo */
- outl(n, iobase+0x34);
-
- n=inl(iobase+0x34);
- n&=~0x000F; /* ASSP off */
- outl(n, iobase+0x34);
-
- n=inl(iobase+0x34);
- n|=(1<<29); /* Enable ring bus */
- outl(n, iobase+0x34);
-
- n=inl(iobase+0x34);
- n|=(1<<28); /* Enable serial bus */
- outl(n, iobase+0x34);
-
- n=inl(iobase+0x34);
- n&=~0x00F00000; /* MIC off */
- outl(n, iobase+0x34);
-
- n=inl(iobase+0x34);
- n&=~0x000F0000; /* I2S off */
- outl(n, iobase+0x34);
-
-
- w=inw(iobase+0x18);
- w&=~(1<<7); /* ClkRun off */
- outw(w, iobase+0x18);
-
- w=inw(iobase+0x18);
- w&=~(1<<6); /* Hardware volume control interrupt off... for now. */
- outw(w, iobase+0x18);
-
- w=inw(iobase+0x18);
- w&=~(1<<4); /* ASSP irq off */
- outw(w, iobase+0x18);
-
- w=inw(iobase+0x18);
- w&=~(1<<3); /* ISDN irq off */
- outw(w, iobase+0x18);
-
- w=inw(iobase+0x18);
- w|=(1<<2); /* Direct Sound IRQ on */
- outw(w, iobase+0x18);
-
- w=inw(iobase+0x18);
- w&=~(1<<1); /* MPU401 IRQ off */
- outw(w, iobase+0x18);
-
- w=inw(iobase+0x18);
- w|=(1<<0); /* SB IRQ on */
- outw(w, iobase+0x18);
-
- /* Set hardware volume control registers to midpoints.
- We can tell which button was pushed based on how they change. */
- outb(0x88, iobase+0x1c);
- outb(0x88, iobase+0x1d);
- outb(0x88, iobase+0x1e);
- outb(0x88, iobase+0x1f);
-
- /* it appears some maestros (dell 7500) only work if these are set,
- regardless of whether we use the assp or not. */
-
- outb(0, iobase+0xA4);
- outb(3, iobase+0xA2);
- outb(0, iobase+0xA6);
-
- for(apu=0;apu<16;apu++)
- {
- /* Write 0 into the buffer area 0x1E0->1EF */
- outw(0x01E0+apu, 0x10+iobase);
- outw(0x0000, 0x12+iobase);
-
- /*
- * The 1.10 test program seem to write 0 into the buffer area
- * 0x1D0-0x1DF too.
- */
- outw(0x01D0+apu, 0x10+iobase);
- outw(0x0000, 0x12+iobase);
- }
-
-#if 1
- wave_set_register(ess, IDR7_WAVE_ROMRAM,
- (wave_get_register(ess, IDR7_WAVE_ROMRAM)&0xFF00));
- wave_set_register(ess, IDR7_WAVE_ROMRAM,
- wave_get_register(ess, IDR7_WAVE_ROMRAM)|0x100);
- wave_set_register(ess, IDR7_WAVE_ROMRAM,
- wave_get_register(ess, IDR7_WAVE_ROMRAM)&~0x200);
- wave_set_register(ess, IDR7_WAVE_ROMRAM,
- wave_get_register(ess, IDR7_WAVE_ROMRAM)|~0x400);
-#else
- maestro_write(ess, IDR7_WAVE_ROMRAM,
- (maestro_read(ess, IDR7_WAVE_ROMRAM)&0xFF00));
- maestro_write(ess, IDR7_WAVE_ROMRAM,
- maestro_read(ess, IDR7_WAVE_ROMRAM)|0x100);
- maestro_write(ess, IDR7_WAVE_ROMRAM,
- maestro_read(ess, IDR7_WAVE_ROMRAM)&~0x200);
- maestro_write(ess, IDR7_WAVE_ROMRAM,
- maestro_read(ess, IDR7_WAVE_ROMRAM)|0x400);
-#endif
-
- maestro_write(ess, IDR2_CRAM_DATA, 0x0000);
- maestro_write(ess, 0x08, 0xB004);
- /* Now back to the DirectSound stuff */
- maestro_write(ess, 0x09, 0x001B);
- maestro_write(ess, 0x0A, 0x8000);
- maestro_write(ess, 0x0B, 0x3F37);
- maestro_write(ess, 0x0C, 0x0098);
-
- /* parallel out ?? */
- maestro_write(ess, 0x0C,
- (maestro_read(ess, 0x0C)&~0xF000)|0x8000);
- /* parallel in, has something to do with recording :) */
- maestro_write(ess, 0x0C,
- (maestro_read(ess, 0x0C)&~0x0F00)|0x0500);
-
- maestro_write(ess, 0x0D, 0x7632);
-
- /* Wave cache control on - test off, sg off,
- enable, enable extra chans 1Mb */
-
- outw(inw(0x14+iobase)|(1<<8),0x14+iobase);
- outw(inw(0x14+iobase)&0xFE03,0x14+iobase);
- outw((inw(0x14+iobase)&0xFFFC), 0x14+iobase);
- outw(inw(0x14+iobase)|(1<<7),0x14+iobase);
-
- outw(0xA1A0, 0x14+iobase); /* 0300 ? */
-
- /* Now clear the APU control ram */
- for(apu=0;apu<NR_APUS;apu++)
- {
- for(w=0;w<NR_APU_REGS;w++)
- apu_set_register(ess, apu|ESS_CHAN_HARD, w, 0);
-
- }
-
- return 0;
-
-}
-
-/* this guy tries to find the pci power management
- * register bank. this should really be in core
- * code somewhere. 1 on success. */
-static int
-parse_power(struct ess_card *card, struct pci_dev *pcidev)
-{
- u32 n;
- u16 w;
- u8 next;
- int max = 64; /* an a 8bit guy pointing to 32bit guys
- can only express so much. */
-
- card->power_regs = 0;
-
- /* check to see if we have a capabilities list in
- the config register */
- pci_read_config_word(pcidev, PCI_STATUS, &w);
- if(!(w & PCI_STATUS_CAP_LIST)) return 0;
-
- /* walk the list, starting at the head. */
- pci_read_config_byte(pcidev,PCI_CAPABILITY_LIST,&next);
-
- while(next && max--) {
- pci_read_config_dword(pcidev, next & ~3, &n);
- if((n & 0xff) == PCI_CAP_ID_PM) {
- card->power_regs = next;
- break;
- }
- next = ((n>>8) & 0xff);
- }
-
- return card->power_regs ? 1 : 0;
-}
-
-static int __init
-maestro_probe(struct pci_dev *pcidev,const struct pci_device_id *pdid)
-{
- int card_type = pdid->driver_data;
- u32 n;
- int iobase;
- int i, ret;
- struct ess_card *card;
- struct ess_state *ess;
- int num = 0;
-
-/* when built into the kernel, we only print version if device is found */
-#ifndef MODULE
- static int printed_version;
- if (!printed_version++)
- printk(version);
-#endif
-
- /* don't pick up weird modem maestros */
- if(((pcidev->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
- return -ENODEV;
-
-
- if ((ret=pci_enable_device(pcidev)))
- return ret;
-
- iobase = pci_resource_start(pcidev,0);
- if (!iobase || !(pci_resource_flags(pcidev, 0 ) & IORESOURCE_IO))
- return -ENODEV;
-
- if(pcidev->irq == 0)
- return -ENODEV;
-
- /* stake our claim on the iospace */
- if( request_region(iobase, 256, card_names[card_type]) == NULL )
- {
- printk(KERN_WARNING "maestro: can't allocate 256 bytes I/O at 0x%4.4x\n", iobase);
- return -EBUSY;
- }
-
- /* just to be sure */
- pci_set_master(pcidev);
-
- card = kmalloc(sizeof(struct ess_card), GFP_KERNEL);
- if(card == NULL)
- {
- printk(KERN_WARNING "maestro: out of memory\n");
- release_region(iobase, 256);
- return -ENOMEM;
- }
-
- memset(card, 0, sizeof(*card));
- card->pcidev = pcidev;
-
- card->iobase = iobase;
- card->card_type = card_type;
- card->irq = pcidev->irq;
- card->magic = ESS_CARD_MAGIC;
- spin_lock_init(&card->lock);
- init_waitqueue_head(&card->suspend_queue);
-
- card->dock_mute_vol = 50;
-
- /* init our groups of 6 apus */
- for(i=0;i<NR_DSPS;i++)
- {
- struct ess_state *s=&card->channels[i];
-
- s->index = i;
-
- s->card = card;
- init_waitqueue_head(&s->dma_adc.wait);
- init_waitqueue_head(&s->dma_dac.wait);
- init_waitqueue_head(&s->open_wait);
- spin_lock_init(&s->lock);
- mutex_init(&s->open_mutex);
- s->magic = ESS_STATE_MAGIC;
-
- s->apu[0] = 6*i;
- s->apu[1] = (6*i)+1;
- s->apu[2] = (6*i)+2;
- s->apu[3] = (6*i)+3;
- s->apu[4] = (6*i)+4;
- s->apu[5] = (6*i)+5;
-
- if(s->dma_adc.ready || s->dma_dac.ready || s->dma_adc.rawbuf)
- printk("maestro: BOTCH!\n");
- /* register devices */
- if ((s->dev_audio = register_sound_dsp(&ess_audio_fops, -1)) < 0)
- break;
- }
-
- num = i;
-
- /* clear the rest if we ran out of slots to register */
- for(;i<NR_DSPS;i++)
- {
- struct ess_state *s=&card->channels[i];
- s->dev_audio = -1;
- }
-
- ess = &card->channels[0];
-
- /*
- * Ok card ready. Begin setup proper
- */
-
- printk(KERN_INFO "maestro: Configuring %s found at IO 0x%04X IRQ %d\n",
- card_names[card_type],iobase,card->irq);
- pci_read_config_dword(pcidev, PCI_SUBSYSTEM_VENDOR_ID, &n);
- printk(KERN_INFO "maestro: subvendor id: 0x%08x\n",n);
-
- /* turn off power management unless:
- * - the user explicitly asks for it
- * or
- * - we're not a 2e, lesser chipps seem to have problems.
- * - we're not on our _very_ small whitelist. some implemenetations
- * really don't like the pm code, others require it.
- * feel free to expand this as required.
- */
-#define SUBSYSTEM_VENDOR(x) (x&0xffff)
- if( (use_pm != 1) &&
- ((card_type != TYPE_MAESTRO2E) || (SUBSYSTEM_VENDOR(n) != 0x1028)))
- use_pm = 0;
-
- if(!use_pm)
- printk(KERN_INFO "maestro: not attempting power management.\n");
- else {
- if(!parse_power(card,pcidev))
- printk(KERN_INFO "maestro: no PCI power management interface found.\n");
- else {
- pci_read_config_dword(pcidev, card->power_regs, &n);
- printk(KERN_INFO "maestro: PCI power management capability: 0x%x\n",n>>16);
- }
- }
-
- maestro_config(card);
-
- if(maestro_ac97_get(card, 0x00)==0x0080) {
- printk(KERN_ERR "maestro: my goodness! you seem to have a pt101 codec, which is quite rare.\n"
- "\tyou should tell someone about this.\n");
- } else {
- maestro_ac97_init(card);
- }
-
- if ((card->dev_mixer = register_sound_mixer(&ess_mixer_fops, -1)) < 0) {
- printk("maestro: couldn't register mixer!\n");
- } else {
- memcpy(card->mix.mixer_state,mixer_defaults,sizeof(card->mix.mixer_state));
- mixer_push_state(card);
- }
-
- if((ret=request_irq(card->irq, ess_interrupt, IRQF_SHARED, card_names[card_type], card)))
- {
- printk(KERN_ERR "maestro: unable to allocate irq %d,\n", card->irq);
- unregister_sound_mixer(card->dev_mixer);
- for(i=0;i<NR_DSPS;i++)
- {
- struct ess_state *s = &card->channels[i];
- if(s->dev_audio != -1)
- unregister_sound_dsp(s->dev_audio);
- }
- release_region(card->iobase, 256);
- unregister_reboot_notifier(&maestro_nb);
- kfree(card);
- return ret;
- }
-
- /* Turn on hardware volume control interrupt.
- This has to come after we grab the IRQ above,
- or a crash will result on installation if a button has been pressed,
- because in that case we'll get an immediate interrupt. */
- n = inw(iobase+0x18);
- n|=(1<<6);
- outw(n, iobase+0x18);
-
- pci_set_drvdata(pcidev,card);
- /* now go to sleep 'till something interesting happens */
- maestro_power(card,ACPI_D2);
-
- printk(KERN_INFO "maestro: %d channels configured.\n", num);
- return 0;
-}
-
-static void maestro_remove(struct pci_dev *pcidev) {
- struct ess_card *card = pci_get_drvdata(pcidev);
- int i;
- u32 n;
-
- /* XXX maybe should force stop bob, but should be all
- stopped by _release by now */
-
- /* Turn off hardware volume control interrupt.
- This has to come before we leave the IRQ below,
- or a crash results if a button is pressed ! */
- n = inw(card->iobase+0x18);
- n&=~(1<<6);
- outw(n, card->iobase+0x18);
-
- free_irq(card->irq, card);
- unregister_sound_mixer(card->dev_mixer);
- for(i=0;i<NR_DSPS;i++)
- {
- struct ess_state *ess = &card->channels[i];
- if(ess->dev_audio != -1)
- unregister_sound_dsp(ess->dev_audio);
- }
- /* Goodbye, Mr. Bond. */
- maestro_power(card,ACPI_D3);
- release_region(card->iobase, 256);
- kfree(card);
- pci_set_drvdata(pcidev,NULL);
-}
-
-static struct pci_device_id maestro_pci_tbl[] = {
- {PCI_VENDOR_ESS, PCI_DEVICE_ID_ESS_ESS1968, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_MAESTRO2},
- {PCI_VENDOR_ESS, PCI_DEVICE_ID_ESS_ESS1978, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_MAESTRO2E},
- {PCI_VENDOR_ESS_OLD, PCI_DEVICE_ID_ESS_ESS0100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_MAESTRO},
- {0,}
-};
-MODULE_DEVICE_TABLE(pci, maestro_pci_tbl);
-
-static struct pci_driver maestro_pci_driver = {
- .name = "maestro",
- .id_table = maestro_pci_tbl,
- .probe = maestro_probe,
- .remove = maestro_remove,
-};
-
-static int __init init_maestro(void)
-{
- int rc;
-
- rc = pci_register_driver(&maestro_pci_driver);
- if (rc < 0)
- return rc;
-
- if (register_reboot_notifier(&maestro_nb))
- printk(KERN_WARNING "maestro: reboot notifier registration failed; may not reboot properly.\n");
-#ifdef MODULE
- printk(version);
-#endif
- if (dsps_order < 0) {
- dsps_order = 1;
- printk(KERN_WARNING "maestro: clipping dsps_order to %d\n",dsps_order);
- }
- else if (dsps_order > MAX_DSP_ORDER) {
- dsps_order = MAX_DSP_ORDER;
- printk(KERN_WARNING "maestro: clipping dsps_order to %d\n",dsps_order);
- }
- return 0;
-}
-
-static int maestro_notifier(struct notifier_block *nb, unsigned long event, void *buf)
-{
- /* this notifier is called when the kernel is really shut down. */
- M_printk("maestro: shutting down\n");
- /* this will remove all card instances too */
- pci_unregister_driver(&maestro_pci_driver);
- /* XXX dunno about power management */
- return NOTIFY_OK;
-}
-
-/* --------------------------------------------------------------------- */
-
-
-static void cleanup_maestro(void) {
- M_printk("maestro: unloading\n");
- pci_unregister_driver(&maestro_pci_driver);
- unregister_reboot_notifier(&maestro_nb);
-}
-
-/* --------------------------------------------------------------------- */
-
-void
-check_suspend(struct ess_card *card)
-{
- DECLARE_WAITQUEUE(wait, current);
-
- if(!card->in_suspend) return;
-
- card->in_suspend++;
- add_wait_queue(&(card->suspend_queue), &wait);
- current->state = TASK_UNINTERRUPTIBLE;
- schedule();
- remove_wait_queue(&(card->suspend_queue), &wait);
- current->state = TASK_RUNNING;
-}
-
-module_init(init_maestro);
-module_exit(cleanup_maestro);