From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 sound/oss/sonicvibes.c | 2792 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 2792 insertions(+)
 create mode 100644 sound/oss/sonicvibes.c

(limited to 'sound/oss/sonicvibes.c')

diff --git a/sound/oss/sonicvibes.c b/sound/oss/sonicvibes.c
new file mode 100644
index 000000000000..e1d69611a257
--- /dev/null
+++ b/sound/oss/sonicvibes.c
@@ -0,0 +1,2792 @@
+/*****************************************************************************/
+
+/*
+ *      sonicvibes.c  --  S3 Sonic Vibes audio driver.
+ *
+ *      Copyright (C) 1998-2001, 2003  Thomas Sailer (t.sailer@alumni.ethz.ch)
+ *
+ *      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.
+ *
+ * Special thanks to David C. Niemi
+ *
+ *
+ * Module command line parameters:
+ *   none so far
+ *
+ *
+ *  Supported devices:
+ *  /dev/dsp    standard /dev/dsp device, (mostly) OSS compatible
+ *  /dev/mixer  standard /dev/mixer device, (mostly) OSS compatible
+ *  /dev/midi   simple MIDI UART interface, no ioctl
+ *
+ *  The card has both an FM and a Wavetable synth, but I have to figure
+ *  out first how to drive them...
+ *
+ *  Revision history
+ *    06.05.1998   0.1   Initial release
+ *    10.05.1998   0.2   Fixed many bugs, esp. ADC rate calculation
+ *                       First stab at a simple midi interface (no bells&whistles)
+ *    13.05.1998   0.3   Fix stupid cut&paste error: set_adc_rate was called instead of
+ *                       set_dac_rate in the FMODE_WRITE case in sv_open
+ *                       Fix hwptr out of bounds (now mpg123 works)
+ *    14.05.1998   0.4   Don't allow excessive interrupt rates
+ *    08.06.1998   0.5   First release using Alan Cox' soundcore instead of miscdevice
+ *    03.08.1998   0.6   Do not include modversions.h
+ *                       Now mixer behaviour can basically be selected between
+ *                       "OSS documented" and "OSS actual" behaviour
+ *    31.08.1998   0.7   Fix realplayer problems - dac.count issues
+ *    10.12.1998   0.8   Fix drain_dac trying to wait on not yet initialized DMA
+ *    16.12.1998   0.9   Fix a few f_file & FMODE_ bugs
+ *    06.01.1999   0.10  remove the silly SA_INTERRUPT flag.
+ *                       hopefully killed the egcs section type conflict
+ *    12.03.1999   0.11  cinfo.blocks should be reset after GETxPTR ioctl.
+ *                       reported by Johan Maes <joma@telindus.be>
+ *    22.03.1999   0.12  return EAGAIN instead of EBUSY when O_NONBLOCK
+ *                       read/write cannot be executed
+ *    05.04.1999   0.13  added code to sv_read and sv_write which should detect
+ *                       lockups of the sound chip and revive it. This is basically
+ *                       an ugly hack, but at least applications using this driver
+ *                       won't hang forever. I don't know why these lockups happen,
+ *                       it might well be the motherboard chipset (an early 486 PCI
+ *                       board with ALI chipset), since every busmastering 100MB
+ *                       ethernet card I've tried (Realtek 8139 and Macronix tulip clone)
+ *                       exhibit similar behaviour (they work for a couple of packets
+ *                       and then lock up and can be revived by ifconfig down/up).
+ *    07.04.1999   0.14  implemented the following ioctl's: SOUND_PCM_READ_RATE, 
+ *                       SOUND_PCM_READ_CHANNELS, SOUND_PCM_READ_BITS; 
+ *                       Alpha fixes reported by Peter Jones <pjones@redhat.com>
+ *                       Note: dmaio hack might still be wrong on archs other than i386
+ *    15.06.1999   0.15  Fix bad allocation bug.
+ *                       Thanks to Deti Fliegl <fliegl@in.tum.de>
+ *    28.06.1999   0.16  Add pci_set_master
+ *    03.08.1999   0.17  adapt to Linus' new __setup/__initcall
+ *                       added kernel command line options "sonicvibes=reverb" and "sonicvibesdmaio=dmaioaddr"
+ *    12.08.1999   0.18  module_init/__setup fixes
+ *    24.08.1999   0.19  get rid of the dmaio kludge, replace with allocate_resource
+ *    31.08.1999   0.20  add spin_lock_init
+ *                       use new resource allocation to allocate DDMA IO space
+ *                       replaced current->state = x with set_current_state(x)
+ *    03.09.1999   0.21  change read semantics for MIDI to match
+ *                       OSS more closely; remove possible wakeup race
+ *    28.10.1999   0.22  More waitqueue races fixed
+ *    01.12.1999   0.23  New argument to allocate_resource
+ *    07.12.1999   0.24  More allocate_resource semantics change
+ *    08.01.2000   0.25  Prevent some ioctl's from returning bad count values on underrun/overrun;
+ *                       Tim Janik's BSE (Bedevilled Sound Engine) found this
+ *                       use Martin Mares' pci_assign_resource
+ *    07.02.2000   0.26  Use pci_alloc_consistent and pci_register_driver
+ *    21.11.2000   0.27  Initialize dma buffers in poll, otherwise poll may return a bogus mask
+ *    12.12.2000   0.28  More dma buffer initializations, patch from
+ *                       Tjeerd Mulder <tjeerd.mulder@fujitsu-siemens.com>
+ *    31.01.2001   0.29  Register/Unregister gameport
+ *                       Fix SETTRIGGER non OSS API conformity
+ *    18.05.2001   0.30  PCI probing and error values cleaned up by Marcus
+ *                       Meissner <mm@caldera.de>
+ *    03.01.2003   0.31  open_mode fixes from Georg Acher <acher@in.tum.de>
+ *
+ */
+
+/*****************************************************************************/
+      
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/wait.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+#include <linux/sound.h>
+#include <linux/slab.h>
+#include <linux/soundcard.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
+#include <linux/gameport.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#include "dm.h"
+
+
+/* --------------------------------------------------------------------- */
+
+#undef OSS_DOCUMENTED_MIXER_SEMANTICS
+
+/* --------------------------------------------------------------------- */
+
+#ifndef PCI_VENDOR_ID_S3
+#define PCI_VENDOR_ID_S3             0x5333
+#endif
+#ifndef PCI_DEVICE_ID_S3_SONICVIBES
+#define PCI_DEVICE_ID_S3_SONICVIBES  0xca00
+#endif
+
+#define SV_MAGIC  ((PCI_VENDOR_ID_S3<<16)|PCI_DEVICE_ID_S3_SONICVIBES)
+
+#define SV_EXTENT_SB      0x10
+#define SV_EXTENT_ENH     0x10
+#define SV_EXTENT_SYNTH   0x4
+#define SV_EXTENT_MIDI    0x4
+#define SV_EXTENT_GAME    0x8
+#define SV_EXTENT_DMA     0x10
+
+/*
+ * we are not a bridge and thus use a resource for DDMA that is used for bridges but
+ * left empty for normal devices
+ */
+#define RESOURCE_SB       0
+#define RESOURCE_ENH      1
+#define RESOURCE_SYNTH    2
+#define RESOURCE_MIDI     3
+#define RESOURCE_GAME     4
+#define RESOURCE_DDMA     7
+
+#define SV_MIDI_DATA      0
+#define SV_MIDI_COMMAND   1
+#define SV_MIDI_STATUS    1
+
+#define SV_DMA_ADDR0      0
+#define SV_DMA_ADDR1      1
+#define SV_DMA_ADDR2      2
+#define SV_DMA_ADDR3      3
+#define SV_DMA_COUNT0     4
+#define SV_DMA_COUNT1     5
+#define SV_DMA_COUNT2     6
+#define SV_DMA_MODE       0xb
+#define SV_DMA_RESET      0xd
+#define SV_DMA_MASK       0xf
+
+/*
+ * DONT reset the DMA controllers unless you understand
+ * the reset semantics. Assuming reset semantics as in
+ * the 8237 does not work.
+ */
+
+#define DMA_MODE_AUTOINIT 0x10
+#define DMA_MODE_READ     0x44    /* I/O to memory, no autoinit, increment, single mode */
+#define DMA_MODE_WRITE    0x48    /* memory to I/O, no autoinit, increment, single mode */
+
+#define SV_CODEC_CONTROL  0
+#define SV_CODEC_INTMASK  1
+#define SV_CODEC_STATUS   2
+#define SV_CODEC_IADDR    4
+#define SV_CODEC_IDATA    5
+
+#define SV_CCTRL_RESET      0x80
+#define SV_CCTRL_INTADRIVE  0x20
+#define SV_CCTRL_WAVETABLE  0x08
+#define SV_CCTRL_REVERB     0x04
+#define SV_CCTRL_ENHANCED   0x01
+
+#define SV_CINTMASK_DMAA    0x01
+#define SV_CINTMASK_DMAC    0x04
+#define SV_CINTMASK_SPECIAL 0x08
+#define SV_CINTMASK_UPDOWN  0x40
+#define SV_CINTMASK_MIDI    0x80
+
+#define SV_CSTAT_DMAA       0x01
+#define SV_CSTAT_DMAC	    0x04
+#define SV_CSTAT_SPECIAL    0x08
+#define SV_CSTAT_UPDOWN	    0x40
+#define SV_CSTAT_MIDI	    0x80
+
+#define SV_CIADDR_TRD       0x80
+#define SV_CIADDR_MCE       0x40
+
+/* codec indirect registers */
+#define SV_CIMIX_ADCINL     0x00
+#define SV_CIMIX_ADCINR     0x01
+#define SV_CIMIX_AUX1INL    0x02
+#define SV_CIMIX_AUX1INR    0x03
+#define SV_CIMIX_CDINL      0x04
+#define SV_CIMIX_CDINR      0x05
+#define SV_CIMIX_LINEINL    0x06
+#define SV_CIMIX_LINEINR    0x07
+#define SV_CIMIX_MICIN      0x08
+#define SV_CIMIX_SYNTHINL   0x0A
+#define SV_CIMIX_SYNTHINR   0x0B
+#define SV_CIMIX_AUX2INL    0x0C
+#define SV_CIMIX_AUX2INR    0x0D
+#define SV_CIMIX_ANALOGINL  0x0E
+#define SV_CIMIX_ANALOGINR  0x0F
+#define SV_CIMIX_PCMINL     0x10
+#define SV_CIMIX_PCMINR     0x11
+
+#define SV_CIGAMECONTROL    0x09
+#define SV_CIDATAFMT        0x12
+#define SV_CIENABLE         0x13
+#define SV_CIUPDOWN         0x14
+#define SV_CIREVISION       0x15
+#define SV_CIADCOUTPUT      0x16
+#define SV_CIDMAABASECOUNT1 0x18
+#define SV_CIDMAABASECOUNT0 0x19
+#define SV_CIDMACBASECOUNT1 0x1c
+#define SV_CIDMACBASECOUNT0 0x1d
+#define SV_CIPCMSR0         0x1e
+#define SV_CIPCMSR1         0x1f
+#define SV_CISYNTHSR0       0x20
+#define SV_CISYNTHSR1       0x21
+#define SV_CIADCCLKSOURCE   0x22
+#define SV_CIADCALTSR       0x23
+#define SV_CIADCPLLM        0x24
+#define SV_CIADCPLLN        0x25
+#define SV_CISYNTHPLLM      0x26
+#define SV_CISYNTHPLLN      0x27
+#define SV_CIUARTCONTROL    0x2a
+#define SV_CIDRIVECONTROL   0x2b
+#define SV_CISRSSPACE       0x2c
+#define SV_CISRSCENTER      0x2d
+#define SV_CIWAVETABLESRC   0x2e
+#define SV_CIANALOGPWRDOWN  0x30
+#define SV_CIDIGITALPWRDOWN 0x31
+
+
+#define SV_CIMIX_ADCSRC_CD     0x20
+#define SV_CIMIX_ADCSRC_DAC    0x40
+#define SV_CIMIX_ADCSRC_AUX2   0x60
+#define SV_CIMIX_ADCSRC_LINE   0x80
+#define SV_CIMIX_ADCSRC_AUX1   0xa0
+#define SV_CIMIX_ADCSRC_MIC    0xc0
+#define SV_CIMIX_ADCSRC_MIXOUT 0xe0
+#define SV_CIMIX_ADCSRC_MASK   0xe0
+
+#define SV_CFMT_STEREO     0x01
+#define SV_CFMT_16BIT      0x02
+#define SV_CFMT_MASK       0x03
+#define SV_CFMT_ASHIFT     0   
+#define SV_CFMT_CSHIFT     4
+
+static const unsigned sample_size[] = { 1, 2, 2, 4 };
+static const unsigned sample_shift[] = { 0, 1, 1, 2 };
+
+#define SV_CENABLE_PPE     0x4
+#define SV_CENABLE_RE      0x2
+#define SV_CENABLE_PE      0x1
+
+
+/* MIDI buffer sizes */
+
+#define MIDIINBUF  256
+#define MIDIOUTBUF 256
+
+#define FMODE_MIDI_SHIFT 2
+#define FMODE_MIDI_READ  (FMODE_READ << FMODE_MIDI_SHIFT)
+#define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
+
+#define FMODE_DMFM 0x10
+
+/* --------------------------------------------------------------------- */
+
+struct sv_state {
+	/* magic */
+	unsigned int magic;
+
+	/* list of sonicvibes devices */
+	struct list_head devs;
+
+	/* the corresponding pci_dev structure */
+	struct pci_dev *dev;
+
+	/* soundcore stuff */
+	int dev_audio;
+	int dev_mixer;
+	int dev_midi;
+	int dev_dmfm;
+
+	/* hardware resources */
+	unsigned long iosb, ioenh, iosynth, iomidi;  /* long for SPARC */
+	unsigned int iodmaa, iodmac, irq;
+
+        /* mixer stuff */
+        struct {
+                unsigned int modcnt;
+#ifndef OSS_DOCUMENTED_MIXER_SEMANTICS
+		unsigned short vol[13];
+#endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
+        } mix;
+
+	/* wave stuff */
+	unsigned int rateadc, ratedac;
+	unsigned char fmt, enable;
+
+	spinlock_t lock;
+	struct semaphore open_sem;
+	mode_t open_mode;
+	wait_queue_head_t open_wait;
+
+	struct dmabuf {
+		void *rawbuf;
+		dma_addr_t dmaaddr;
+		unsigned buforder;
+		unsigned numfrag;
+		unsigned fragshift;
+		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;
+		unsigned endcleared:1;
+		unsigned enabled:1;
+		unsigned ossfragshift;
+		int ossmaxfrags;
+		unsigned subdivision;
+	} dma_dac, dma_adc;
+
+	/* midi stuff */
+	struct {
+		unsigned ird, iwr, icnt;
+		unsigned ord, owr, ocnt;
+		wait_queue_head_t iwait;
+		wait_queue_head_t owait;
+		struct timer_list timer;
+		unsigned char ibuf[MIDIINBUF];
+		unsigned char obuf[MIDIOUTBUF];
+	} midi;
+
+	struct gameport *gameport;
+};
+
+/* --------------------------------------------------------------------- */
+
+static LIST_HEAD(devs);
+static unsigned long wavetable_mem;
+
+/* --------------------------------------------------------------------- */
+
+static inline 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;
+}
+
+/*
+ * hweightN: returns the hamming weight (i.e. the number
+ * of bits set) of a N-bit word
+ */
+
+#ifdef hweight32
+#undef hweight32
+#endif
+
+static inline unsigned int hweight32(unsigned int w)
+{
+        unsigned int res = (w & 0x55555555) + ((w >> 1) & 0x55555555);
+        res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
+        res = (res & 0x0F0F0F0F) + ((res >> 4) & 0x0F0F0F0F);
+        res = (res & 0x00FF00FF) + ((res >> 8) & 0x00FF00FF);
+        return (res & 0x0000FFFF) + ((res >> 16) & 0x0000FFFF);
+}
+
+/* --------------------------------------------------------------------- */
+
+/*
+ * Why use byte IO? Nobody knows, but S3 does it also in their Windows driver.
+ */
+
+#undef DMABYTEIO
+
+static void set_dmaa(struct sv_state *s, unsigned int addr, unsigned int count)
+{
+#ifdef DMABYTEIO
+	unsigned io = s->iodmaa, u;
+
+	count--;
+	for (u = 4; u > 0; u--, addr >>= 8, io++)
+		outb(addr & 0xff, io);
+	for (u = 3; u > 0; u--, count >>= 8, io++)
+		outb(count & 0xff, io);
+#else /* DMABYTEIO */
+	count--;
+	outl(addr, s->iodmaa + SV_DMA_ADDR0);
+	outl(count, s->iodmaa + SV_DMA_COUNT0);
+#endif /* DMABYTEIO */
+	outb(0x18, s->iodmaa + SV_DMA_MODE);
+}
+
+static void set_dmac(struct sv_state *s, unsigned int addr, unsigned int count)
+{
+#ifdef DMABYTEIO
+	unsigned io = s->iodmac, u;
+
+	count >>= 1;
+	count--;
+	for (u = 4; u > 0; u--, addr >>= 8, io++)
+		outb(addr & 0xff, io);
+	for (u = 3; u > 0; u--, count >>= 8, io++)
+		outb(count & 0xff, io);
+#else /* DMABYTEIO */
+	count >>= 1;
+	count--;
+	outl(addr, s->iodmac + SV_DMA_ADDR0);
+	outl(count, s->iodmac + SV_DMA_COUNT0);
+#endif /* DMABYTEIO */
+	outb(0x14, s->iodmac + SV_DMA_MODE);
+}
+
+static inline unsigned get_dmaa(struct sv_state *s)
+{
+#ifdef DMABYTEIO
+	unsigned io = s->iodmaa+6, v = 0, u;
+
+	for (u = 3; u > 0; u--, io--) {
+		v <<= 8;
+		v |= inb(io);
+	}
+	return v + 1;
+#else /* DMABYTEIO */
+	return (inl(s->iodmaa + SV_DMA_COUNT0) & 0xffffff) + 1;
+#endif /* DMABYTEIO */
+}
+
+static inline unsigned get_dmac(struct sv_state *s)
+{
+#ifdef DMABYTEIO
+	unsigned io = s->iodmac+6, v = 0, u;
+
+	for (u = 3; u > 0; u--, io--) {
+		v <<= 8;
+		v |= inb(io);
+	}
+	return (v + 1) << 1;
+#else /* DMABYTEIO */
+	return ((inl(s->iodmac + SV_DMA_COUNT0) & 0xffffff) + 1) << 1;
+#endif /* DMABYTEIO */
+}
+
+static void wrindir(struct sv_state *s, unsigned char idx, unsigned char data)
+{
+	outb(idx & 0x3f, s->ioenh + SV_CODEC_IADDR);
+	udelay(10);
+	outb(data, s->ioenh + SV_CODEC_IDATA);
+	udelay(10);
+}
+
+static unsigned char rdindir(struct sv_state *s, unsigned char idx)
+{
+	unsigned char v;
+
+	outb(idx & 0x3f, s->ioenh + SV_CODEC_IADDR);
+	udelay(10);
+	v = inb(s->ioenh + SV_CODEC_IDATA);
+	udelay(10);
+	return v;
+}
+
+static void set_fmt(struct sv_state *s, unsigned char mask, unsigned char data)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&s->lock, flags);
+	outb(SV_CIDATAFMT | SV_CIADDR_MCE, s->ioenh + SV_CODEC_IADDR);
+	if (mask) {
+		s->fmt = inb(s->ioenh + SV_CODEC_IDATA);
+		udelay(10);
+	}
+	s->fmt = (s->fmt & mask) | data;
+	outb(s->fmt, s->ioenh + SV_CODEC_IDATA);
+	udelay(10);
+	outb(0, s->ioenh + SV_CODEC_IADDR);
+	spin_unlock_irqrestore(&s->lock, flags);
+	udelay(10);
+}
+
+static void frobindir(struct sv_state *s, unsigned char idx, unsigned char mask, unsigned char data)
+{
+	outb(idx & 0x3f, s->ioenh + SV_CODEC_IADDR);
+	udelay(10);
+	outb((inb(s->ioenh + SV_CODEC_IDATA) & mask) ^ data, s->ioenh + SV_CODEC_IDATA);
+	udelay(10);
+}
+
+#define REFFREQUENCY  24576000
+#define ADCMULT 512
+#define FULLRATE 48000
+
+static unsigned setpll(struct sv_state *s, unsigned char reg, unsigned rate)
+{
+	unsigned long flags;
+	unsigned char r, m=0, n=0;
+	unsigned xm, xn, xr, xd, metric = ~0U;
+	/* the warnings about m and n used uninitialized are bogus and may safely be ignored */
+
+	if (rate < 625000/ADCMULT)
+		rate = 625000/ADCMULT;
+	if (rate > 150000000/ADCMULT)
+		rate = 150000000/ADCMULT;
+	/* slight violation of specs, needed for continuous sampling rates */
+	for (r = 0; rate < 75000000/ADCMULT; r += 0x20, rate <<= 1);
+	for (xn = 3; xn < 35; xn++)
+		for (xm = 3; xm < 130; xm++) {
+			xr = REFFREQUENCY/ADCMULT * xm / xn;
+			xd = abs((signed)(xr - rate));
+			if (xd < metric) {
+				metric = xd;
+				m = xm - 2;
+				n = xn - 2;
+			}
+		}
+	reg &= 0x3f;
+	spin_lock_irqsave(&s->lock, flags);
+	outb(reg, s->ioenh + SV_CODEC_IADDR);
+	udelay(10);
+	outb(m, s->ioenh + SV_CODEC_IDATA);
+	udelay(10);
+	outb(reg+1, s->ioenh + SV_CODEC_IADDR);
+	udelay(10);
+	outb(r | n, s->ioenh + SV_CODEC_IDATA);
+	spin_unlock_irqrestore(&s->lock, flags);
+	udelay(10);
+	return (REFFREQUENCY/ADCMULT * (m + 2) / (n + 2)) >> ((r >> 5) & 7);
+}
+
+#if 0
+
+static unsigned getpll(struct sv_state *s, unsigned char reg)
+{
+	unsigned long flags;
+	unsigned char m, n;
+
+	reg &= 0x3f;
+	spin_lock_irqsave(&s->lock, flags);
+	outb(reg, s->ioenh + SV_CODEC_IADDR);
+	udelay(10);
+	m = inb(s->ioenh + SV_CODEC_IDATA);
+	udelay(10);
+	outb(reg+1, s->ioenh + SV_CODEC_IADDR);
+	udelay(10);
+	n = inb(s->ioenh + SV_CODEC_IDATA);
+	spin_unlock_irqrestore(&s->lock, flags);
+	udelay(10);
+	return (REFFREQUENCY/ADCMULT * (m + 2) / ((n & 0x1f) + 2)) >> ((n >> 5) & 7);
+}
+
+#endif
+
+static void set_dac_rate(struct sv_state *s, unsigned rate)
+{
+	unsigned div;
+	unsigned long flags;
+
+	if (rate > 48000)
+		rate = 48000;
+	if (rate < 4000)
+		rate = 4000;
+	div = (rate * 65536 + FULLRATE/2) / FULLRATE;
+	if (div > 65535)
+		div = 65535;
+	spin_lock_irqsave(&s->lock, flags);
+	wrindir(s, SV_CIPCMSR1, div >> 8);
+	wrindir(s, SV_CIPCMSR0, div);
+	spin_unlock_irqrestore(&s->lock, flags);
+	s->ratedac = (div * FULLRATE + 32768) / 65536;
+}
+
+static void set_adc_rate(struct sv_state *s, unsigned rate)
+{
+	unsigned long flags;
+	unsigned rate1, rate2, div;
+
+	if (rate > 48000)
+		rate = 48000;
+	if (rate < 4000)
+		rate = 4000;
+	rate1 = setpll(s, SV_CIADCPLLM, rate);
+	div = (48000 + rate/2) / rate;
+	if (div > 8)
+		div = 8;
+	rate2 = (48000 + div/2) / div;
+	spin_lock_irqsave(&s->lock, flags);
+	wrindir(s, SV_CIADCALTSR, (div-1) << 4);
+	if (abs((signed)(rate-rate2)) <= abs((signed)(rate-rate1))) {
+		wrindir(s, SV_CIADCCLKSOURCE, 0x10);
+		s->rateadc = rate2;
+	} else {
+		wrindir(s, SV_CIADCCLKSOURCE, 0x00);
+		s->rateadc = rate1;
+	}
+	spin_unlock_irqrestore(&s->lock, flags);
+}
+
+/* --------------------------------------------------------------------- */
+
+static inline void stop_adc(struct sv_state *s)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&s->lock, flags);
+	s->enable &= ~SV_CENABLE_RE;
+	wrindir(s, SV_CIENABLE, s->enable);
+	spin_unlock_irqrestore(&s->lock, flags);
+}	
+
+static inline void stop_dac(struct sv_state *s)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&s->lock, flags);
+	s->enable &= ~(SV_CENABLE_PPE | SV_CENABLE_PE);
+	wrindir(s, SV_CIENABLE, s->enable);
+	spin_unlock_irqrestore(&s->lock, flags);
+}	
+
+static void start_dac(struct sv_state *s)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&s->lock, flags);
+	if ((s->dma_dac.mapped || s->dma_dac.count > 0) && s->dma_dac.ready) {
+		s->enable = (s->enable & ~SV_CENABLE_PPE) | SV_CENABLE_PE;
+		wrindir(s, SV_CIENABLE, s->enable);
+	}
+	spin_unlock_irqrestore(&s->lock, flags);
+}	
+
+static void start_adc(struct sv_state *s)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&s->lock, flags);
+	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 |= SV_CENABLE_RE;
+		wrindir(s, SV_CIENABLE, s->enable);
+	}
+	spin_unlock_irqrestore(&s->lock, flags);
+}	
+
+/* --------------------------------------------------------------------- */
+
+#define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
+#define DMABUF_MINORDER 1
+
+static void dealloc_dmabuf(struct sv_state *s, struct dmabuf *db)
+{
+	struct page *page, *pend;
+
+	if (db->rawbuf) {
+		/* undo marking the pages as reserved */
+		pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
+		for (page = virt_to_page(db->rawbuf); page <= pend; page++)
+			ClearPageReserved(page);
+		pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr);
+	}
+	db->rawbuf = NULL;
+	db->mapped = db->ready = 0;
+}
+
+
+/* DMAA is used for playback, DMAC is used for recording */
+
+static int prog_dmabuf(struct sv_state *s, unsigned rec)
+{
+	struct dmabuf *db = rec ? &s->dma_adc : &s->dma_dac;
+	unsigned rate = rec ? s->rateadc : s->ratedac;
+	int order;
+	unsigned bytepersec;
+	unsigned bufs;
+	struct page *page, *pend;
+	unsigned char fmt;
+	unsigned long flags;
+
+	spin_lock_irqsave(&s->lock, flags);
+	fmt = s->fmt;
+	if (rec) {
+		s->enable &= ~SV_CENABLE_RE;
+		fmt >>= SV_CFMT_CSHIFT;
+	} else {
+		s->enable &= ~SV_CENABLE_PE;
+		fmt >>= SV_CFMT_ASHIFT;
+	}
+	wrindir(s, SV_CIENABLE, s->enable);
+	spin_unlock_irqrestore(&s->lock, flags);
+	fmt &= SV_CFMT_MASK;
+	db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
+	if (!db->rawbuf) {
+		db->ready = db->mapped = 0;
+		for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
+			if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr)))
+				break;
+		if (!db->rawbuf)
+			return -ENOMEM;
+		db->buforder = order;
+		if ((virt_to_bus(db->rawbuf) ^ (virt_to_bus(db->rawbuf) + (PAGE_SIZE << db->buforder) - 1)) & ~0xffff)
+			printk(KERN_DEBUG "sv: DMA buffer crosses 64k boundary: busaddr 0x%lx  size %ld\n", 
+			       virt_to_bus(db->rawbuf), PAGE_SIZE << db->buforder);
+		if ((virt_to_bus(db->rawbuf) + (PAGE_SIZE << db->buforder) - 1) & ~0xffffff)
+			printk(KERN_DEBUG "sv: DMA buffer beyond 16MB: busaddr 0x%lx  size %ld\n", 
+			       virt_to_bus(db->rawbuf), PAGE_SIZE << db->buforder);
+		/* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
+		pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
+		for (page = virt_to_page(db->rawbuf); page <= pend; page++)
+			SetPageReserved(page);
+	}
+	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;
+	memset(db->rawbuf, (fmt & SV_CFMT_16BIT) ? 0 : 0x80, db->dmasize);
+	spin_lock_irqsave(&s->lock, flags);
+	if (rec) {
+		set_dmac(s, db->dmaaddr, db->numfrag << db->fragshift);
+		/* program enhanced mode registers */
+		wrindir(s, SV_CIDMACBASECOUNT1, (db->fragsamples-1) >> 8);
+		wrindir(s, SV_CIDMACBASECOUNT0, db->fragsamples-1);
+	} else {
+		set_dmaa(s, db->dmaaddr, db->numfrag << db->fragshift);
+		/* program enhanced mode registers */
+		wrindir(s, SV_CIDMAABASECOUNT1, (db->fragsamples-1) >> 8);
+		wrindir(s, SV_CIDMAABASECOUNT0, db->fragsamples-1);
+	}
+	spin_unlock_irqrestore(&s->lock, flags);
+	db->enabled = 1;
+	db->ready = 1;
+	return 0;
+}
+
+static inline void clear_advance(struct sv_state *s)
+{
+	unsigned char c = (s->fmt & (SV_CFMT_16BIT << SV_CFMT_ASHIFT)) ? 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);
+		bptr = 0;
+		len -= x;
+	}
+	memset(buf + bptr, c, len);
+}
+
+/* call with spinlock held! */
+static void sv_update_ptr(struct sv_state *s)
+{
+	unsigned hwptr;
+	int diff;
+
+	/* update ADC pointer */
+	if (s->dma_adc.ready) {
+		hwptr = (s->dma_adc.dmasize - 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))) {
+				s->enable &= ~SV_CENABLE_RE;
+				wrindir(s, SV_CIENABLE, s->enable);
+				s->dma_adc.error++;
+			}
+		}
+	}
+	/* update DAC pointer */
+	if (s->dma_dac.ready) {
+		hwptr = (s->dma_dac.dmasize - get_dmaa(s)) % s->dma_dac.dmasize;
+		diff = (s->dma_dac.dmasize + hwptr - s->dma_dac.hwptr) % s->dma_dac.dmasize;
+		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;
+			if (s->dma_dac.count <= 0) {
+				s->enable &= ~SV_CENABLE_PE;
+				wrindir(s, SV_CIENABLE, s->enable);
+				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);
+		}
+	}
+}
+
+/* hold spinlock for the following! */
+static void sv_handle_midi(struct sv_state *s)
+{
+	unsigned char ch;
+	int wake;
+
+	wake = 0;
+	while (!(inb(s->iomidi+1) & 0x80)) {
+		ch = inb(s->iomidi);
+		if (s->midi.icnt < MIDIINBUF) {
+			s->midi.ibuf[s->midi.iwr] = ch;
+			s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
+			s->midi.icnt++;
+		}
+		wake = 1;
+	}
+	if (wake)
+		wake_up(&s->midi.iwait);
+	wake = 0;
+	while (!(inb(s->iomidi+1) & 0x40) && s->midi.ocnt > 0) {
+		outb(s->midi.obuf[s->midi.ord], s->iomidi);
+		s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
+		s->midi.ocnt--;
+		if (s->midi.ocnt < MIDIOUTBUF-16)
+			wake = 1;
+	}
+	if (wake)
+		wake_up(&s->midi.owait);
+}
+
+static irqreturn_t sv_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+        struct sv_state *s = (struct sv_state *)dev_id;
+	unsigned int intsrc;
+	
+	/* fastpath out, to ease interrupt sharing */
+	intsrc = inb(s->ioenh + SV_CODEC_STATUS);
+	if (!(intsrc & (SV_CSTAT_DMAA | SV_CSTAT_DMAC | SV_CSTAT_MIDI)))
+		return IRQ_NONE;
+	spin_lock(&s->lock);
+	sv_update_ptr(s);
+	sv_handle_midi(s);
+	spin_unlock(&s->lock);
+	return IRQ_HANDLED;
+}
+
+static void sv_midi_timer(unsigned long data)
+{
+	struct sv_state *s = (struct sv_state *)data;
+	unsigned long flags;
+	
+	spin_lock_irqsave(&s->lock, flags);
+	sv_handle_midi(s);
+	spin_unlock_irqrestore(&s->lock, flags);
+	s->midi.timer.expires = jiffies+1;
+	add_timer(&s->midi.timer);
+}
+
+/* --------------------------------------------------------------------- */
+
+static const char invalid_magic[] = KERN_CRIT "sv: invalid magic value\n";
+
+#define VALIDATE_STATE(s)                         \
+({                                                \
+	if (!(s) || (s)->magic != SV_MAGIC) { \
+		printk(invalid_magic);            \
+		return -ENXIO;                    \
+	}                                         \
+})
+
+/* --------------------------------------------------------------------- */
+
+#define MT_4          1
+#define MT_5MUTE      2
+#define MT_4MUTEMONO  3
+#define MT_6MUTE      4
+
+static const struct {
+	unsigned left:5;
+	unsigned right:5;
+	unsigned type:3;
+	unsigned rec:3;
+} mixtable[SOUND_MIXER_NRDEVICES] = {
+	[SOUND_MIXER_RECLEV] = { SV_CIMIX_ADCINL,    SV_CIMIX_ADCINR,    MT_4,         0 },
+	[SOUND_MIXER_LINE1]  = { SV_CIMIX_AUX1INL,   SV_CIMIX_AUX1INR,   MT_5MUTE,     5 },
+	[SOUND_MIXER_CD]     = { SV_CIMIX_CDINL,     SV_CIMIX_CDINR,     MT_5MUTE,     1 },
+	[SOUND_MIXER_LINE]   = { SV_CIMIX_LINEINL,   SV_CIMIX_LINEINR,   MT_5MUTE,     4 },
+	[SOUND_MIXER_MIC]    = { SV_CIMIX_MICIN,     SV_CIMIX_ADCINL,    MT_4MUTEMONO, 6 },
+	[SOUND_MIXER_SYNTH]  = { SV_CIMIX_SYNTHINL,  SV_CIMIX_SYNTHINR,  MT_5MUTE,     2 },
+	[SOUND_MIXER_LINE2]  = { SV_CIMIX_AUX2INL,   SV_CIMIX_AUX2INR,   MT_5MUTE,     3 },
+	[SOUND_MIXER_VOLUME] = { SV_CIMIX_ANALOGINL, SV_CIMIX_ANALOGINR, MT_5MUTE,     7 },
+	[SOUND_MIXER_PCM]    = { SV_CIMIX_PCMINL,    SV_CIMIX_PCMINR,    MT_6MUTE,     0 }
+};
+
+#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
+
+static int return_mixval(struct sv_state *s, unsigned i, int *arg)
+{
+	unsigned long flags;
+	unsigned char l, r, rl, rr;
+
+	spin_lock_irqsave(&s->lock, flags);
+	l = rdindir(s, mixtable[i].left);
+	r = rdindir(s, mixtable[i].right);
+	spin_unlock_irqrestore(&s->lock, flags);
+	switch (mixtable[i].type) {
+	case MT_4:
+		r &= 0xf;
+		l &= 0xf;
+		rl = 10 + 6 * (l & 15);
+		rr = 10 + 6 * (r & 15);
+		break;
+
+	case MT_4MUTEMONO:
+		rl = 55 - 3 * (l & 15);
+		if (r & 0x10)
+			rl += 45;
+		rr = rl;
+		r = l;
+		break;
+
+	case MT_5MUTE:
+	default:
+		rl = 100 - 3 * (l & 31);
+		rr = 100 - 3 * (r & 31);
+		break;
+				
+	case MT_6MUTE:
+		rl = 100 - 3 * (l & 63) / 2;
+		rr = 100 - 3 * (r & 63) / 2;
+		break;
+	}
+	if (l & 0x80)
+		rl = 0;
+	if (r & 0x80)
+		rr = 0;
+	return put_user((rr << 8) | rl, arg);
+}
+
+#else /* OSS_DOCUMENTED_MIXER_SEMANTICS */
+
+static const unsigned char volidx[SOUND_MIXER_NRDEVICES] = 
+{
+	[SOUND_MIXER_RECLEV] = 1,
+	[SOUND_MIXER_LINE1]  = 2,
+	[SOUND_MIXER_CD]     = 3,
+	[SOUND_MIXER_LINE]   = 4,
+	[SOUND_MIXER_MIC]    = 5,
+	[SOUND_MIXER_SYNTH]  = 6,
+	[SOUND_MIXER_LINE2]  = 7,
+	[SOUND_MIXER_VOLUME] = 8,
+	[SOUND_MIXER_PCM]    = 9
+};
+
+#endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
+
+static unsigned mixer_recmask(struct sv_state *s)
+{
+	unsigned long flags;
+	int i, j;
+
+	spin_lock_irqsave(&s->lock, flags);
+	j = rdindir(s, SV_CIMIX_ADCINL) >> 5;
+	spin_unlock_irqrestore(&s->lock, flags);
+	j &= 7;
+	for (i = 0; i < SOUND_MIXER_NRDEVICES && mixtable[i].rec != j; i++);
+	return 1 << i;
+}
+
+static int mixer_ioctl(struct sv_state *s, unsigned int cmd, unsigned long arg)
+{
+	unsigned long flags;
+	int i, val;
+	unsigned char l, r, rl, rr;
+	int __user *p = (int __user *)arg;
+
+	VALIDATE_STATE(s);
+        if (cmd == SOUND_MIXER_INFO) {
+		mixer_info info;
+		memset(&info, 0, sizeof(info));
+		strlcpy(info.id, "SonicVibes", sizeof(info.id));
+		strlcpy(info.name, "S3 SonicVibes", sizeof(info.name));
+		info.modify_counter = s->mix.modcnt;
+		if (copy_to_user((void __user *)arg, &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, "SonicVibes", sizeof(info.id));
+		strlcpy(info.name, "S3 SonicVibes", sizeof(info.name));
+		if (copy_to_user((void __user *)arg, &info, sizeof(info)))
+			return -EFAULT;
+		return 0;
+	}
+	if (cmd == OSS_GETVERSION)
+		return put_user(SOUND_VERSION, p);
+	if (cmd == SOUND_MIXER_PRIVATE1) {  /* SRS settings */
+		if (get_user(val, p))
+			return -EFAULT;
+		spin_lock_irqsave(&s->lock, flags);
+		if (val & 1) {
+			if (val & 2) {
+				l = 4 - ((val >> 2) & 7);
+				if (l & ~3)
+					l = 4;
+				r = 4 - ((val >> 5) & 7);
+				if (r & ~3)
+					r = 4;
+				wrindir(s, SV_CISRSSPACE, l);
+				wrindir(s, SV_CISRSCENTER, r);
+			} else
+				wrindir(s, SV_CISRSSPACE, 0x80);
+		}
+		l = rdindir(s, SV_CISRSSPACE);
+		r = rdindir(s, SV_CISRSCENTER);
+		spin_unlock_irqrestore(&s->lock, flags);
+		if (l & 0x80)
+			return put_user(0, p);
+		return put_user(((4 - (l & 7)) << 2) | ((4 - (r & 7)) << 5) | 2, p);
+	}
+	if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int))
+                return -EINVAL;
+        if (_SIOC_DIR(cmd) == _SIOC_READ) {
+                switch (_IOC_NR(cmd)) {
+                case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
+			return put_user(mixer_recmask(s), p);
+			
+                case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
+			for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
+				if (mixtable[i].type)
+					val |= 1 << i;
+			return put_user(val, p);
+
+                case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
+			for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
+				if (mixtable[i].rec)
+					val |= 1 << i;
+			return put_user(val, p);
+			
+                case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
+			for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
+				if (mixtable[i].type && mixtable[i].type != MT_4MUTEMONO)
+					val |= 1 << i;
+			return put_user(val, p);
+			
+                case SOUND_MIXER_CAPS:
+			return put_user(SOUND_CAP_EXCL_INPUT, p);
+
+		default:
+			i = _IOC_NR(cmd);
+                        if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
+                                return -EINVAL;
+#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
+			return return_mixval(s, i, p);
+#else /* OSS_DOCUMENTED_MIXER_SEMANTICS */
+			if (!volidx[i])
+				return -EINVAL;
+			return put_user(s->mix.vol[volidx[i]-1], p);
+#endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
+		}
+	}
+        if (_SIOC_DIR(cmd) != (_SIOC_READ|_SIOC_WRITE)) 
+		return -EINVAL;
+	s->mix.modcnt++;
+	switch (_IOC_NR(cmd)) {
+	case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
+		if (get_user(val, p))
+			return -EFAULT;
+		i = hweight32(val);
+		if (i == 0)
+			return 0; /*val = mixer_recmask(s);*/
+		else if (i > 1) 
+			val &= ~mixer_recmask(s);
+		for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
+			if (!(val & (1 << i)))
+				continue;
+			if (mixtable[i].rec)
+				break;
+		}
+		if (!mixtable[i].rec)
+			return 0;
+		spin_lock_irqsave(&s->lock, flags);
+		frobindir(s, SV_CIMIX_ADCINL, 0x1f, mixtable[i].rec << 5);
+		frobindir(s, SV_CIMIX_ADCINR, 0x1f, mixtable[i].rec << 5);
+		spin_unlock_irqrestore(&s->lock, flags);
+		return 0;
+
+	default:
+		i = _IOC_NR(cmd);
+		if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
+			return -EINVAL;
+		if (get_user(val, p))
+			return -EFAULT;
+		l = val & 0xff;
+		r = (val >> 8) & 0xff;
+		if (mixtable[i].type == MT_4MUTEMONO)
+			l = (r + l) / 2;
+		if (l > 100)
+			l = 100;
+		if (r > 100)
+			r = 100;
+		spin_lock_irqsave(&s->lock, flags);
+		switch (mixtable[i].type) {
+		case MT_4:
+			if (l >= 10)
+				l -= 10;
+			if (r >= 10)
+				r -= 10;
+			frobindir(s, mixtable[i].left, 0xf0, l / 6);
+			frobindir(s, mixtable[i].right, 0xf0, l / 6);
+			break;
+
+		case MT_4MUTEMONO:
+			rr = 0;
+			if (l < 10)
+				rl = 0x80;
+			else {
+				if (l >= 55) {
+					rr = 0x10;
+					l -= 45;
+				}
+				rl = (55 - l) / 3;
+			}
+			wrindir(s, mixtable[i].left, rl);
+			frobindir(s, mixtable[i].right, ~0x10, rr);
+			break;
+			
+		case MT_5MUTE:
+			if (l < 7)
+				rl = 0x80;
+			else
+				rl = (100 - l) / 3;
+			if (r < 7)
+				rr = 0x80;
+			else
+				rr = (100 - r) / 3;
+			wrindir(s, mixtable[i].left, rl);
+			wrindir(s, mixtable[i].right, rr);
+			break;
+				
+		case MT_6MUTE:
+			if (l < 6)
+				rl = 0x80;
+			else
+				rl = (100 - l) * 2 / 3;
+			if (r < 6)
+				rr = 0x80;
+			else
+				rr = (100 - r) * 2 / 3;
+			wrindir(s, mixtable[i].left, rl);
+			wrindir(s, mixtable[i].right, rr);
+			break;
+		}
+		spin_unlock_irqrestore(&s->lock, flags);
+#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
+                return return_mixval(s, i, p);
+#else /* OSS_DOCUMENTED_MIXER_SEMANTICS */
+		if (!volidx[i])
+			return -EINVAL;
+		s->mix.vol[volidx[i]-1] = val;
+		return put_user(s->mix.vol[volidx[i]-1], p);
+#endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
+	}
+}
+
+/* --------------------------------------------------------------------- */
+
+static int sv_open_mixdev(struct inode *inode, struct file *file)
+{
+	int minor = iminor(inode);
+	struct list_head *list;
+	struct sv_state *s;
+
+	for (list = devs.next; ; list = list->next) {
+		if (list == &devs)
+			return -ENODEV;
+		s = list_entry(list, struct sv_state, devs);
+		if (s->dev_mixer == minor)
+			break;
+	}
+       	VALIDATE_STATE(s);
+	file->private_data = s;
+	return nonseekable_open(inode, file);
+}
+
+static int sv_release_mixdev(struct inode *inode, struct file *file)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	
+	VALIDATE_STATE(s);
+	return 0;
+}
+
+static int sv_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	return mixer_ioctl((struct sv_state *)file->private_data, cmd, arg);
+}
+
+static /*const*/ struct file_operations sv_mixer_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.ioctl		= sv_ioctl_mixdev,
+	.open		= sv_open_mixdev,
+	.release	= sv_release_mixdev,
+};
+
+/* --------------------------------------------------------------------- */
+
+static int drain_dac(struct sv_state *s, int nonblock)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	unsigned long flags;
+	int count, tmo;
+
+	if (s->dma_dac.mapped || !s->dma_dac.ready)
+		return 0;
+        add_wait_queue(&s->dma_dac.wait, &wait);
+        for (;;) {
+		__set_current_state(TASK_INTERRUPTIBLE);
+                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);
+                        set_current_state(TASK_RUNNING);
+                        return -EBUSY;
+                }
+		tmo = 3 * HZ * (count + s->dma_dac.fragsize) / 2 / s->ratedac;
+		tmo >>= sample_shift[(s->fmt >> SV_CFMT_ASHIFT) & SV_CFMT_MASK];
+		if (!schedule_timeout(tmo + 1))
+			printk(KERN_DEBUG "sv: dma timed out??\n");
+        }
+        remove_wait_queue(&s->dma_dac.wait, &wait);
+        set_current_state(TASK_RUNNING);
+        if (signal_pending(current))
+                return -ERESTARTSYS;
+        return 0;
+}
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t sv_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	DECLARE_WAITQUEUE(wait, current);
+	ssize_t ret;
+	unsigned long flags;
+	unsigned swptr;
+	int cnt;
+
+	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;
+	ret = 0;
+#if 0
+	spin_lock_irqsave(&s->lock, flags);
+	sv_update_ptr(s);
+	spin_unlock_irqrestore(&s->lock, flags);
+#endif
+        add_wait_queue(&s->dma_adc.wait, &wait);
+	while (count > 0) {
+		spin_lock_irqsave(&s->lock, flags);
+		swptr = s->dma_adc.swptr;
+		cnt = s->dma_adc.dmasize-swptr;
+		if (s->dma_adc.count < cnt)
+			cnt = s->dma_adc.count;
+		if (cnt <= 0)
+			__set_current_state(TASK_INTERRUPTIBLE);
+		spin_unlock_irqrestore(&s->lock, flags);
+		if (cnt > count)
+			cnt = count;
+		if (cnt <= 0) {
+			if (s->dma_adc.enabled)
+				start_adc(s);
+			if (file->f_flags & O_NONBLOCK) {
+				if (!ret)
+					ret = -EAGAIN;
+				break;
+			}
+			if (!schedule_timeout(HZ)) {
+				printk(KERN_DEBUG "sv: 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 */
+				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)) {
+				if (!ret)
+					ret = -ERESTARTSYS;
+				break;
+			}
+			continue;
+		}
+		if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
+			if (!ret)
+				ret = -EFAULT;
+			break;
+		}
+		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;
+		if (s->dma_adc.enabled)
+			start_adc(s);
+	}
+        remove_wait_queue(&s->dma_adc.wait, &wait);
+	set_current_state(TASK_RUNNING);
+	return ret;
+}
+
+static ssize_t sv_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	DECLARE_WAITQUEUE(wait, current);
+	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;
+#if 0
+	spin_lock_irqsave(&s->lock, flags);
+	sv_update_ptr(s);
+	spin_unlock_irqrestore(&s->lock, flags);
+#endif
+        add_wait_queue(&s->dma_dac.wait, &wait);
+	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;
+		if (cnt <= 0)
+			__set_current_state(TASK_INTERRUPTIBLE);
+		spin_unlock_irqrestore(&s->lock, flags);
+		if (cnt > count)
+			cnt = count;
+		if (cnt <= 0) {
+			if (s->dma_dac.enabled)
+				start_dac(s);
+			if (file->f_flags & O_NONBLOCK) {
+				if (!ret)
+					ret = -EAGAIN;
+				break;
+			}
+			if (!schedule_timeout(HZ)) {
+				printk(KERN_DEBUG "sv: 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);
+				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;
+				break;
+			}
+			continue;
+		}
+		if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt)) {
+			if (!ret)
+				ret = -EFAULT;
+			break;
+		}
+		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;
+		if (s->dma_dac.enabled)
+			start_dac(s);
+	}
+        remove_wait_queue(&s->dma_dac.wait, &wait);
+	set_current_state(TASK_RUNNING);
+	return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int sv_poll(struct file *file, struct poll_table_struct *wait)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	unsigned long flags;
+	unsigned int mask = 0;
+
+	VALIDATE_STATE(s);
+	if (file->f_mode & FMODE_WRITE) {
+		if (!s->dma_dac.ready && prog_dmabuf(s, 1))
+			return 0;
+		poll_wait(file, &s->dma_dac.wait, wait);
+	}
+	if (file->f_mode & FMODE_READ) {
+		if (!s->dma_adc.ready && prog_dmabuf(s, 0))
+			return 0;
+		poll_wait(file, &s->dma_adc.wait, wait);
+	}
+	spin_lock_irqsave(&s->lock, flags);
+	sv_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 sv_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct sv_state *s = (struct sv_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 (vma->vm_flags & VM_READ) {
+		if ((ret = prog_dmabuf(s, 0)) != 0)
+			goto out;
+		db = &s->dma_adc;
+	} else 
+		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 sv_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	unsigned long flags;
+        audio_buf_info abinfo;
+        count_info cinfo;
+	int count;
+	int val, mapped, ret;
+	unsigned char fmtm, fmtd;
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+
+	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, 0/*file->f_flags & O_NONBLOCK*/);
+		return 0;
+		
+	case SNDCTL_DSP_SETDUPLEX:
+		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->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->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 |= SV_CFMT_STEREO << SV_CFMT_CSHIFT;
+			else
+				fmtm &= ~(SV_CFMT_STEREO << SV_CFMT_CSHIFT);
+		}
+		if (file->f_mode & FMODE_WRITE) {
+			stop_dac(s);
+			s->dma_dac.ready = 0;
+			if (val)
+				fmtd |= SV_CFMT_STEREO << SV_CFMT_ASHIFT;
+			else
+				fmtm &= ~(SV_CFMT_STEREO << SV_CFMT_ASHIFT);
+		}
+		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 |= SV_CFMT_STEREO << SV_CFMT_CSHIFT;
+				else
+					fmtm &= ~(SV_CFMT_STEREO << SV_CFMT_CSHIFT);
+			}
+			if (file->f_mode & FMODE_WRITE) {
+				stop_dac(s);
+				s->dma_dac.ready = 0;
+				if (val >= 2)
+					fmtd |= SV_CFMT_STEREO << SV_CFMT_ASHIFT;
+				else
+					fmtm &= ~(SV_CFMT_STEREO << SV_CFMT_ASHIFT);
+			}
+			set_fmt(s, fmtm, fmtd);
+		}
+		return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (SV_CFMT_STEREO << SV_CFMT_CSHIFT) 
+					   : (SV_CFMT_STEREO << SV_CFMT_ASHIFT))) ? 2 : 1, p);
+		
+	case SNDCTL_DSP_GETFMTS: /* Returns a mask */
+                return put_user(AFMT_S16_LE|AFMT_U8, 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;
+				if (val == AFMT_S16_LE)
+					fmtd |= SV_CFMT_16BIT << SV_CFMT_CSHIFT;
+				else
+					fmtm &= ~(SV_CFMT_16BIT << SV_CFMT_CSHIFT);
+			}
+			if (file->f_mode & FMODE_WRITE) {
+				stop_dac(s);
+				s->dma_dac.ready = 0;
+				if (val == AFMT_S16_LE)
+					fmtd |= SV_CFMT_16BIT << SV_CFMT_ASHIFT;
+				else
+					fmtm &= ~(SV_CFMT_16BIT << SV_CFMT_ASHIFT);
+			}
+			set_fmt(s, fmtm, fmtd);
+		}
+		return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (SV_CFMT_16BIT << SV_CFMT_CSHIFT) 
+					   : (SV_CFMT_16BIT << SV_CFMT_ASHIFT))) ? 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 & SV_CENABLE_RE) 
+			val |= PCM_ENABLE_INPUT;
+		if (file->f_mode & FMODE_WRITE && s->enable & SV_CENABLE_PE) 
+			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;
+				s->dma_adc.enabled = 1;
+				start_adc(s);
+			} else {
+				s->dma_adc.enabled = 0;
+				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;
+				s->dma_dac.enabled = 1;
+				start_dac(s);
+			} else {
+				s->dma_dac.enabled = 0;
+				stop_dac(s);
+			}
+		}
+		return 0;
+
+	case SNDCTL_DSP_GETOSPACE:
+		if (!(file->f_mode & FMODE_WRITE))
+			return -EINVAL;
+		if (!s->dma_dac.ready && (val = prog_dmabuf(s, 0)) != 0)
+			return val;
+		spin_lock_irqsave(&s->lock, flags);
+		sv_update_ptr(s);
+		abinfo.fragsize = s->dma_dac.fragsize;
+		count = s->dma_dac.count;
+		if (count < 0)
+			count = 0;
+                abinfo.bytes = s->dma_dac.dmasize - 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 && (val = prog_dmabuf(s, 1)) != 0)
+			return val;
+		spin_lock_irqsave(&s->lock, flags);
+		sv_update_ptr(s);
+		abinfo.fragsize = s->dma_adc.fragsize;
+		count = s->dma_adc.count;
+		if (count < 0)
+			count = 0;
+                abinfo.bytes = 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 && (val = prog_dmabuf(s, 0)) != 0)
+			return val;
+		spin_lock_irqsave(&s->lock, flags);
+		sv_update_ptr(s);
+                count = s->dma_dac.count;
+		spin_unlock_irqrestore(&s->lock, flags);
+		if (count < 0)
+			count = 0;
+		return put_user(count, p);
+
+        case SNDCTL_DSP_GETIPTR:
+		if (!(file->f_mode & FMODE_READ))
+			return -EINVAL;
+		if (!s->dma_adc.ready && (val = prog_dmabuf(s, 1)) != 0)
+			return val;
+		spin_lock_irqsave(&s->lock, flags);
+		sv_update_ptr(s);
+                cinfo.bytes = s->dma_adc.total_bytes;
+		count = s->dma_adc.count;
+		if (count < 0)
+			count = 0;
+                cinfo.blocks = 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 && (val = prog_dmabuf(s, 0)) != 0)
+			return val;
+		spin_lock_irqsave(&s->lock, flags);
+		sv_update_ptr(s);
+                cinfo.bytes = s->dma_dac.total_bytes;
+		count = s->dma_dac.count;
+		if (count < 0)
+			count = 0;
+                cinfo.blocks = 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;
+		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) ? (SV_CFMT_STEREO << SV_CFMT_CSHIFT) 
+					   : (SV_CFMT_STEREO << SV_CFMT_ASHIFT))) ? 2 : 1, p);
+
+        case SOUND_PCM_READ_BITS:
+		return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (SV_CFMT_16BIT << SV_CFMT_CSHIFT) 
+					   : (SV_CFMT_16BIT << SV_CFMT_ASHIFT))) ? 16 : 8, p);
+
+        case SOUND_PCM_WRITE_FILTER:
+        case SNDCTL_DSP_SETSYNCRO:
+        case SOUND_PCM_READ_FILTER:
+                return -EINVAL;
+		
+	}
+	return mixer_ioctl(s, cmd, arg);
+}
+
+static int sv_open(struct inode *inode, struct file *file)
+{
+	int minor = iminor(inode);
+	DECLARE_WAITQUEUE(wait, current);
+	unsigned char fmtm = ~0, fmts = 0;
+	struct list_head *list;
+	struct sv_state *s;
+
+	for (list = devs.next; ; list = list->next) {
+		if (list == &devs)
+			return -ENODEV;
+		s = list_entry(list, struct sv_state, devs);
+		if (!((s->dev_audio ^ minor) & ~0xf))
+			break;
+	}
+       	VALIDATE_STATE(s);
+	file->private_data = s;
+	/* wait for device to become free */
+	down(&s->open_sem);
+	while (s->open_mode & file->f_mode) {
+		if (file->f_flags & O_NONBLOCK) {
+			up(&s->open_sem);
+			return -EBUSY;
+		}
+		add_wait_queue(&s->open_wait, &wait);
+		__set_current_state(TASK_INTERRUPTIBLE);
+		up(&s->open_sem);
+		schedule();
+		remove_wait_queue(&s->open_wait, &wait);
+		set_current_state(TASK_RUNNING);
+		if (signal_pending(current))
+			return -ERESTARTSYS;
+		down(&s->open_sem);
+	}
+	if (file->f_mode & FMODE_READ) {
+		fmtm &= ~((SV_CFMT_STEREO | SV_CFMT_16BIT) << SV_CFMT_CSHIFT);
+		if ((minor & 0xf) == SND_DEV_DSP16)
+			fmts |= SV_CFMT_16BIT << SV_CFMT_CSHIFT;
+		s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
+		s->dma_adc.enabled = 1;
+		set_adc_rate(s, 8000);
+	}
+	if (file->f_mode & FMODE_WRITE) {
+		fmtm &= ~((SV_CFMT_STEREO | SV_CFMT_16BIT) << SV_CFMT_ASHIFT);
+		if ((minor & 0xf) == SND_DEV_DSP16)
+			fmts |= SV_CFMT_16BIT << SV_CFMT_ASHIFT;
+		s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0;
+		s->dma_dac.enabled = 1;
+		set_dac_rate(s, 8000);
+	}
+	set_fmt(s, fmtm, fmts);
+	s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
+	up(&s->open_sem);
+	return nonseekable_open(inode, file);
+}
+
+static int sv_release(struct inode *inode, struct file *file)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+
+	VALIDATE_STATE(s);
+	lock_kernel();
+	if (file->f_mode & FMODE_WRITE)
+		drain_dac(s, file->f_flags & O_NONBLOCK);
+	down(&s->open_sem);
+	if (file->f_mode & FMODE_WRITE) {
+		stop_dac(s);
+		dealloc_dmabuf(s, &s->dma_dac);
+	}
+	if (file->f_mode & FMODE_READ) {
+		stop_adc(s);
+		dealloc_dmabuf(s, &s->dma_adc);
+	}
+	s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
+	wake_up(&s->open_wait);
+	up(&s->open_sem);
+	unlock_kernel();
+	return 0;
+}
+
+static /*const*/ struct file_operations sv_audio_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.read		= sv_read,
+	.write		= sv_write,
+	.poll		= sv_poll,
+	.ioctl		= sv_ioctl,
+	.mmap		= sv_mmap,
+	.open		= sv_open,
+	.release	= sv_release,
+};
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t sv_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	DECLARE_WAITQUEUE(wait, current);
+	ssize_t ret;
+	unsigned long flags;
+	unsigned ptr;
+	int cnt;
+
+	VALIDATE_STATE(s);
+	if (!access_ok(VERIFY_WRITE, buffer, count))
+		return -EFAULT;
+	if (count == 0)
+		return 0;
+	ret = 0;
+	add_wait_queue(&s->midi.iwait, &wait);
+	while (count > 0) {
+		spin_lock_irqsave(&s->lock, flags);
+		ptr = s->midi.ird;
+		cnt = MIDIINBUF - ptr;
+		if (s->midi.icnt < cnt)
+			cnt = s->midi.icnt;
+		if (cnt <= 0)
+                      __set_current_state(TASK_INTERRUPTIBLE);
+		spin_unlock_irqrestore(&s->lock, flags);
+		if (cnt > count)
+			cnt = count;
+		if (cnt <= 0) {
+                      if (file->f_flags & O_NONBLOCK) {
+                              if (!ret)
+                                      ret = -EAGAIN;
+                              break;
+                      }
+                      schedule();
+                      if (signal_pending(current)) {
+                              if (!ret)
+                                      ret = -ERESTARTSYS;
+                              break;
+                      }
+			continue;
+		}
+		if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
+			if (!ret)
+				ret = -EFAULT;
+			break;
+		}
+		ptr = (ptr + cnt) % MIDIINBUF;
+		spin_lock_irqsave(&s->lock, flags);
+		s->midi.ird = ptr;
+		s->midi.icnt -= cnt;
+		spin_unlock_irqrestore(&s->lock, flags);
+		count -= cnt;
+		buffer += cnt;
+		ret += cnt;
+		break;
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(&s->midi.iwait, &wait);
+	return ret;
+}
+
+static ssize_t sv_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	DECLARE_WAITQUEUE(wait, current);
+	ssize_t ret;
+	unsigned long flags;
+	unsigned ptr;
+	int cnt;
+
+	VALIDATE_STATE(s);
+	if (!access_ok(VERIFY_READ, buffer, count))
+		return -EFAULT;
+	if (count == 0)
+		return 0;
+	ret = 0;
+        add_wait_queue(&s->midi.owait, &wait);
+	while (count > 0) {
+		spin_lock_irqsave(&s->lock, flags);
+		ptr = s->midi.owr;
+		cnt = MIDIOUTBUF - ptr;
+		if (s->midi.ocnt + cnt > MIDIOUTBUF)
+			cnt = MIDIOUTBUF - s->midi.ocnt;
+		if (cnt <= 0) {
+			__set_current_state(TASK_INTERRUPTIBLE);
+			sv_handle_midi(s);
+		}
+		spin_unlock_irqrestore(&s->lock, flags);
+		if (cnt > count)
+			cnt = count;
+		if (cnt <= 0) {
+			if (file->f_flags & O_NONBLOCK) {
+				if (!ret)
+					ret = -EAGAIN;
+				break;
+			}
+			schedule();
+			if (signal_pending(current)) {
+				if (!ret)
+					ret = -ERESTARTSYS;
+				break;
+			}
+			continue;
+		}
+		if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
+			if (!ret)
+				ret = -EFAULT;
+			break;
+		}
+		ptr = (ptr + cnt) % MIDIOUTBUF;
+		spin_lock_irqsave(&s->lock, flags);
+		s->midi.owr = ptr;
+		s->midi.ocnt += cnt;
+		spin_unlock_irqrestore(&s->lock, flags);
+		count -= cnt;
+		buffer += cnt;
+		ret += cnt;
+		spin_lock_irqsave(&s->lock, flags);
+		sv_handle_midi(s);
+		spin_unlock_irqrestore(&s->lock, flags);
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(&s->midi.owait, &wait);
+	return ret;
+}
+
+/* No kernel lock - we have our own spinlock */
+static unsigned int sv_midi_poll(struct file *file, struct poll_table_struct *wait)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	unsigned long flags;
+	unsigned int mask = 0;
+
+	VALIDATE_STATE(s);
+	if (file->f_mode & FMODE_WRITE)
+		poll_wait(file, &s->midi.owait, wait);
+	if (file->f_mode & FMODE_READ)
+		poll_wait(file, &s->midi.iwait, wait);
+	spin_lock_irqsave(&s->lock, flags);
+	if (file->f_mode & FMODE_READ) {
+		if (s->midi.icnt > 0)
+			mask |= POLLIN | POLLRDNORM;
+	}
+	if (file->f_mode & FMODE_WRITE) {
+		if (s->midi.ocnt < MIDIOUTBUF)
+			mask |= POLLOUT | POLLWRNORM;
+	}
+	spin_unlock_irqrestore(&s->lock, flags);
+	return mask;
+}
+
+static int sv_midi_open(struct inode *inode, struct file *file)
+{
+	int minor = iminor(inode);
+	DECLARE_WAITQUEUE(wait, current);
+	unsigned long flags;
+	struct list_head *list;
+	struct sv_state *s;
+
+	for (list = devs.next; ; list = list->next) {
+		if (list == &devs)
+			return -ENODEV;
+		s = list_entry(list, struct sv_state, devs);
+		if (s->dev_midi == minor)
+			break;
+	}
+       	VALIDATE_STATE(s);
+	file->private_data = s;
+	/* wait for device to become free */
+	down(&s->open_sem);
+	while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
+		if (file->f_flags & O_NONBLOCK) {
+			up(&s->open_sem);
+			return -EBUSY;
+		}
+		add_wait_queue(&s->open_wait, &wait);
+		__set_current_state(TASK_INTERRUPTIBLE);
+		up(&s->open_sem);
+		schedule();
+		remove_wait_queue(&s->open_wait, &wait);
+		set_current_state(TASK_RUNNING);
+		if (signal_pending(current))
+			return -ERESTARTSYS;
+		down(&s->open_sem);
+	}
+	spin_lock_irqsave(&s->lock, flags);
+	if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
+		s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
+		s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
+		//outb(inb(s->ioenh + SV_CODEC_CONTROL) | SV_CCTRL_WAVETABLE, s->ioenh + SV_CODEC_CONTROL);
+		outb(inb(s->ioenh + SV_CODEC_INTMASK) | SV_CINTMASK_MIDI, s->ioenh + SV_CODEC_INTMASK);
+		wrindir(s, SV_CIUARTCONTROL, 5); /* output MIDI data to external and internal synth */
+		wrindir(s, SV_CIWAVETABLESRC, 1); /* Wavetable in PC RAM */
+		outb(0xff, s->iomidi+1); /* reset command */
+		outb(0x3f, s->iomidi+1); /* uart command */
+		if (!(inb(s->iomidi+1) & 0x80))
+			inb(s->iomidi);
+		s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
+		init_timer(&s->midi.timer);
+		s->midi.timer.expires = jiffies+1;
+		s->midi.timer.data = (unsigned long)s;
+		s->midi.timer.function = sv_midi_timer;
+		add_timer(&s->midi.timer);
+	}
+	if (file->f_mode & FMODE_READ) {
+		s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
+	}
+	if (file->f_mode & FMODE_WRITE) {
+		s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
+	}
+	spin_unlock_irqrestore(&s->lock, flags);
+	s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
+	up(&s->open_sem);
+	return nonseekable_open(inode, file);
+}
+
+static int sv_midi_release(struct inode *inode, struct file *file)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	DECLARE_WAITQUEUE(wait, current);
+	unsigned long flags;
+	unsigned count, tmo;
+
+	VALIDATE_STATE(s);
+
+	lock_kernel();
+	if (file->f_mode & FMODE_WRITE) {
+		add_wait_queue(&s->midi.owait, &wait);
+		for (;;) {
+			__set_current_state(TASK_INTERRUPTIBLE);
+			spin_lock_irqsave(&s->lock, flags);
+			count = s->midi.ocnt;
+			spin_unlock_irqrestore(&s->lock, flags);
+			if (count <= 0)
+				break;
+			if (signal_pending(current))
+				break;
+			if (file->f_flags & O_NONBLOCK) {
+				remove_wait_queue(&s->midi.owait, &wait);
+				set_current_state(TASK_RUNNING);
+				unlock_kernel();
+				return -EBUSY;
+			}
+			tmo = (count * HZ) / 3100;
+			if (!schedule_timeout(tmo ? : 1) && tmo)
+				printk(KERN_DEBUG "sv: midi timed out??\n");
+		}
+		remove_wait_queue(&s->midi.owait, &wait);
+		set_current_state(TASK_RUNNING);
+	}
+	down(&s->open_sem);
+	s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
+	spin_lock_irqsave(&s->lock, flags);
+	if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
+		outb(inb(s->ioenh + SV_CODEC_INTMASK) & ~SV_CINTMASK_MIDI, s->ioenh + SV_CODEC_INTMASK);
+		del_timer(&s->midi.timer);		
+	}
+	spin_unlock_irqrestore(&s->lock, flags);
+	wake_up(&s->open_wait);
+	up(&s->open_sem);
+	unlock_kernel();
+	return 0;
+}
+
+static /*const*/ struct file_operations sv_midi_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.read		= sv_midi_read,
+	.write		= sv_midi_write,
+	.poll		= sv_midi_poll,
+	.open		= sv_midi_open,
+	.release	= sv_midi_release,
+};
+
+/* --------------------------------------------------------------------- */
+
+static int sv_dmfm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	static const unsigned char op_offset[18] = {
+		0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
+		0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
+		0x10, 0x11, 0x12, 0x13, 0x14, 0x15
+	};
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	struct dm_fm_voice v;
+	struct dm_fm_note n;
+	struct dm_fm_params p;
+	unsigned int io;
+	unsigned int regb;
+
+	switch (cmd) {		
+	case FM_IOCTL_RESET:
+		for (regb = 0xb0; regb < 0xb9; regb++) {
+			outb(regb, s->iosynth);
+			outb(0, s->iosynth+1);
+			outb(regb, s->iosynth+2);
+			outb(0, s->iosynth+3);
+		}
+		return 0;
+
+	case FM_IOCTL_PLAY_NOTE:
+		if (copy_from_user(&n, (void __user *)arg, sizeof(n)))
+			return -EFAULT;
+		if (n.voice >= 18)
+			return -EINVAL;
+		if (n.voice >= 9) {
+			regb = n.voice - 9;
+			io = s->iosynth+2;
+		} else {
+			regb = n.voice;
+			io = s->iosynth;
+		}
+		outb(0xa0 + regb, io);
+		outb(n.fnum & 0xff, io+1);
+		outb(0xb0 + regb, io);
+		outb(((n.fnum >> 8) & 3) | ((n.octave & 7) << 2) | ((n.key_on & 1) << 5), io+1);
+		return 0;
+
+	case FM_IOCTL_SET_VOICE:
+		if (copy_from_user(&v, (void __user *)arg, sizeof(v)))
+			return -EFAULT;
+		if (v.voice >= 18)
+			return -EINVAL;
+		regb = op_offset[v.voice];
+		io = s->iosynth + ((v.op & 1) << 1);
+		outb(0x20 + regb, io);
+		outb(((v.am & 1) << 7) | ((v.vibrato & 1) << 6) | ((v.do_sustain & 1) << 5) | 
+		     ((v.kbd_scale & 1) << 4) | (v.harmonic & 0xf), io+1);
+		outb(0x40 + regb, io);
+		outb(((v.scale_level & 0x3) << 6) | (v.volume & 0x3f), io+1);
+		outb(0x60 + regb, io);
+		outb(((v.attack & 0xf) << 4) | (v.decay & 0xf), io+1);
+		outb(0x80 + regb, io);
+		outb(((v.sustain & 0xf) << 4) | (v.release & 0xf), io+1);
+		outb(0xe0 + regb, io);
+		outb(v.waveform & 0x7, io+1);
+		if (n.voice >= 9) {
+			regb = n.voice - 9;
+			io = s->iosynth+2;
+		} else {
+			regb = n.voice;
+			io = s->iosynth;
+		}
+		outb(0xc0 + regb, io);
+		outb(((v.right & 1) << 5) | ((v.left & 1) << 4) | ((v.feedback & 7) << 1) |
+		     (v.connection & 1), io+1);
+		return 0;
+		
+	case FM_IOCTL_SET_PARAMS:
+		if (copy_from_user(&p, (void *__user )arg, sizeof(p)))
+			return -EFAULT;
+		outb(0x08, s->iosynth);
+		outb((p.kbd_split & 1) << 6, s->iosynth+1);
+		outb(0xbd, s->iosynth);
+		outb(((p.am_depth & 1) << 7) | ((p.vib_depth & 1) << 6) | ((p.rhythm & 1) << 5) | ((p.bass & 1) << 4) |
+		     ((p.snare & 1) << 3) | ((p.tomtom & 1) << 2) | ((p.cymbal & 1) << 1) | (p.hihat & 1), s->iosynth+1);
+		return 0;
+
+	case FM_IOCTL_SET_OPL:
+		outb(4, s->iosynth+2);
+		outb(arg, s->iosynth+3);
+		return 0;
+
+	case FM_IOCTL_SET_MODE:
+		outb(5, s->iosynth+2);
+		outb(arg & 1, s->iosynth+3);
+		return 0;
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int sv_dmfm_open(struct inode *inode, struct file *file)
+{
+	int minor = iminor(inode);
+	DECLARE_WAITQUEUE(wait, current);
+	struct list_head *list;
+	struct sv_state *s;
+
+	for (list = devs.next; ; list = list->next) {
+		if (list == &devs)
+			return -ENODEV;
+		s = list_entry(list, struct sv_state, devs);
+		if (s->dev_dmfm == minor)
+			break;
+	}
+       	VALIDATE_STATE(s);
+	file->private_data = s;
+	/* wait for device to become free */
+	down(&s->open_sem);
+	while (s->open_mode & FMODE_DMFM) {
+		if (file->f_flags & O_NONBLOCK) {
+			up(&s->open_sem);
+			return -EBUSY;
+		}
+		add_wait_queue(&s->open_wait, &wait);
+		__set_current_state(TASK_INTERRUPTIBLE);
+		up(&s->open_sem);
+		schedule();
+		remove_wait_queue(&s->open_wait, &wait);
+		set_current_state(TASK_RUNNING);
+		if (signal_pending(current))
+			return -ERESTARTSYS;
+		down(&s->open_sem);
+	}
+	/* init the stuff */
+	outb(1, s->iosynth);
+	outb(0x20, s->iosynth+1); /* enable waveforms */
+	outb(4, s->iosynth+2);
+	outb(0, s->iosynth+3);  /* no 4op enabled */
+	outb(5, s->iosynth+2);
+	outb(1, s->iosynth+3);  /* enable OPL3 */
+	s->open_mode |= FMODE_DMFM;
+	up(&s->open_sem);
+	return nonseekable_open(inode, file);
+}
+
+static int sv_dmfm_release(struct inode *inode, struct file *file)
+{
+	struct sv_state *s = (struct sv_state *)file->private_data;
+	unsigned int regb;
+
+	VALIDATE_STATE(s);
+	lock_kernel();
+	down(&s->open_sem);
+	s->open_mode &= ~FMODE_DMFM;
+	for (regb = 0xb0; regb < 0xb9; regb++) {
+		outb(regb, s->iosynth);
+		outb(0, s->iosynth+1);
+		outb(regb, s->iosynth+2);
+		outb(0, s->iosynth+3);
+	}
+	wake_up(&s->open_wait);
+	up(&s->open_sem);
+	unlock_kernel();
+	return 0;
+}
+
+static /*const*/ struct file_operations sv_dmfm_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.ioctl		= sv_dmfm_ioctl,
+	.open		= sv_dmfm_open,
+	.release	= sv_dmfm_release,
+};
+
+/* --------------------------------------------------------------------- */
+
+/* maximum number of devices; only used for command line params */
+#define NR_DEVICE 5
+
+static int reverb[NR_DEVICE];
+
+#if 0
+static int wavetable[NR_DEVICE];
+#endif
+
+static unsigned int devindex;
+
+module_param_array(reverb, bool, NULL, 0);
+MODULE_PARM_DESC(reverb, "if 1 enables the reverb circuitry. NOTE: your card must have the reverb RAM");
+#if 0
+MODULE_PARM(wavetable, "1-" __MODULE_STRING(NR_DEVICE) "i");
+MODULE_PARM_DESC(wavetable, "if 1 the wavetable synth is enabled");
+#endif
+
+MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
+MODULE_DESCRIPTION("S3 SonicVibes Driver");
+MODULE_LICENSE("GPL");
+
+
+/* --------------------------------------------------------------------- */
+
+static struct initvol {
+	int mixch;
+	int vol;
+} initvol[] __devinitdata = {
+	{ SOUND_MIXER_WRITE_RECLEV, 0x4040 },
+	{ SOUND_MIXER_WRITE_LINE1, 0x4040 },
+	{ SOUND_MIXER_WRITE_CD, 0x4040 },
+	{ SOUND_MIXER_WRITE_LINE, 0x4040 },
+	{ SOUND_MIXER_WRITE_MIC, 0x4040 },
+	{ SOUND_MIXER_WRITE_SYNTH, 0x4040 },
+	{ SOUND_MIXER_WRITE_LINE2, 0x4040 },
+	{ SOUND_MIXER_WRITE_VOLUME, 0x4040 },
+	{ SOUND_MIXER_WRITE_PCM, 0x4040 }
+};
+
+#define RSRCISIOREGION(dev,num) (pci_resource_start((dev), (num)) != 0 && \
+				 (pci_resource_flags((dev), (num)) & IORESOURCE_IO))
+
+static int __devinit sv_register_gameport(struct sv_state *s, int io_port)
+{
+	struct gameport *gp;
+
+	if (!request_region(io_port, SV_EXTENT_GAME, "S3 SonicVibes Gameport")) {
+		printk(KERN_ERR "sv: gameport io ports are in use\n");
+		return -EBUSY;
+	}
+
+	s->gameport = gp = gameport_allocate_port();
+	if (!gp) {
+		printk(KERN_ERR "sv: can not allocate memory for gameport\n");
+		release_region(io_port, SV_EXTENT_GAME);
+		return -ENOMEM;
+	}
+
+	gameport_set_name(gp, "S3 SonicVibes Gameport");
+	gameport_set_phys(gp, "isa%04x/gameport0", io_port);
+	gp->dev.parent = &s->dev->dev;
+	gp->io = io_port;
+
+	gameport_register_port(gp);
+
+	return 0;
+}
+
+static int __devinit sv_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
+{
+	static char __devinitdata sv_ddma_name[] = "S3 Inc. SonicVibes DDMA Controller";
+       	struct sv_state *s;
+	mm_segment_t fs;
+	int i, val, ret;
+	int gpio;
+	char *ddmaname;
+	unsigned ddmanamelen;
+
+	if ((ret=pci_enable_device(pcidev)))
+		return ret;
+
+	if (!RSRCISIOREGION(pcidev, RESOURCE_SB) ||
+	    !RSRCISIOREGION(pcidev, RESOURCE_ENH) ||
+	    !RSRCISIOREGION(pcidev, RESOURCE_SYNTH) ||
+	    !RSRCISIOREGION(pcidev, RESOURCE_MIDI) ||
+	    !RSRCISIOREGION(pcidev, RESOURCE_GAME))
+		return -ENODEV;
+	if (pcidev->irq == 0)
+		return -ENODEV;
+	if (pci_set_dma_mask(pcidev, 0x00ffffff)) {
+		printk(KERN_WARNING "sonicvibes: architecture does not support 24bit PCI busmaster DMA\n");
+		return -ENODEV;
+	}
+	/* try to allocate a DDMA resource if not already available */
+	if (!RSRCISIOREGION(pcidev, RESOURCE_DDMA)) {
+		pcidev->resource[RESOURCE_DDMA].start = 0;
+		pcidev->resource[RESOURCE_DDMA].end = 2*SV_EXTENT_DMA-1;
+		pcidev->resource[RESOURCE_DDMA].flags = PCI_BASE_ADDRESS_SPACE_IO | IORESOURCE_IO;
+		ddmanamelen = strlen(sv_ddma_name)+1;
+		if (!(ddmaname = kmalloc(ddmanamelen, GFP_KERNEL)))
+			return -1;
+		memcpy(ddmaname, sv_ddma_name, ddmanamelen);
+		pcidev->resource[RESOURCE_DDMA].name = ddmaname;
+		if (pci_assign_resource(pcidev, RESOURCE_DDMA)) {
+			pcidev->resource[RESOURCE_DDMA].name = NULL;
+			kfree(ddmaname);
+			printk(KERN_ERR "sv: cannot allocate DDMA controller io ports\n");
+			return -EBUSY;
+		}
+	}
+	if (!(s = kmalloc(sizeof(struct sv_state), GFP_KERNEL))) {
+		printk(KERN_WARNING "sv: out of memory\n");
+		return -ENOMEM;
+	}
+	memset(s, 0, sizeof(struct sv_state));
+	init_waitqueue_head(&s->dma_adc.wait);
+	init_waitqueue_head(&s->dma_dac.wait);
+	init_waitqueue_head(&s->open_wait);
+	init_waitqueue_head(&s->midi.iwait);
+	init_waitqueue_head(&s->midi.owait);
+	init_MUTEX(&s->open_sem);
+	spin_lock_init(&s->lock);
+	s->magic = SV_MAGIC;
+	s->dev = pcidev;
+	s->iosb = pci_resource_start(pcidev, RESOURCE_SB);
+	s->ioenh = pci_resource_start(pcidev, RESOURCE_ENH);
+	s->iosynth = pci_resource_start(pcidev, RESOURCE_SYNTH);
+	s->iomidi = pci_resource_start(pcidev, RESOURCE_MIDI);
+	s->iodmaa = pci_resource_start(pcidev, RESOURCE_DDMA);
+	s->iodmac = pci_resource_start(pcidev, RESOURCE_DDMA) + SV_EXTENT_DMA;
+	gpio = pci_resource_start(pcidev, RESOURCE_GAME);
+	pci_write_config_dword(pcidev, 0x40, s->iodmaa | 9);  /* enable and use extended mode */
+	pci_write_config_dword(pcidev, 0x48, s->iodmac | 9);  /* enable */
+	printk(KERN_DEBUG "sv: io ports: %#lx %#lx %#lx %#lx %#x %#x %#x\n",
+	       s->iosb, s->ioenh, s->iosynth, s->iomidi, gpio, s->iodmaa, s->iodmac);
+	s->irq = pcidev->irq;
+	
+	/* hack */
+	pci_write_config_dword(pcidev, 0x60, wavetable_mem >> 12);  /* wavetable base address */
+
+	ret = -EBUSY;
+	if (!request_region(s->ioenh, SV_EXTENT_ENH, "S3 SonicVibes PCM")) {
+		printk(KERN_ERR "sv: io ports %#lx-%#lx in use\n", s->ioenh, s->ioenh+SV_EXTENT_ENH-1);
+		goto err_region5;
+	}
+	if (!request_region(s->iodmaa, SV_EXTENT_DMA, "S3 SonicVibes DMAA")) {
+		printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->iodmaa, s->iodmaa+SV_EXTENT_DMA-1);
+		goto err_region4;
+	}
+	if (!request_region(s->iodmac, SV_EXTENT_DMA, "S3 SonicVibes DMAC")) {
+		printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->iodmac, s->iodmac+SV_EXTENT_DMA-1);
+		goto err_region3;
+	}
+	if (!request_region(s->iomidi, SV_EXTENT_MIDI, "S3 SonicVibes Midi")) {
+		printk(KERN_ERR "sv: io ports %#lx-%#lx in use\n", s->iomidi, s->iomidi+SV_EXTENT_MIDI-1);
+		goto err_region2;
+	}
+	if (!request_region(s->iosynth, SV_EXTENT_SYNTH, "S3 SonicVibes Synth")) {
+		printk(KERN_ERR "sv: io ports %#lx-%#lx in use\n", s->iosynth, s->iosynth+SV_EXTENT_SYNTH-1);
+		goto err_region1;
+	}
+
+	/* initialize codec registers */
+	outb(0x80, s->ioenh + SV_CODEC_CONTROL); /* assert reset */
+	udelay(50);
+	outb(0x00, s->ioenh + SV_CODEC_CONTROL); /* deassert reset */
+	udelay(50);
+	outb(SV_CCTRL_INTADRIVE | SV_CCTRL_ENHANCED /*| SV_CCTRL_WAVETABLE */
+	     | (reverb[devindex] ? SV_CCTRL_REVERB : 0), s->ioenh + SV_CODEC_CONTROL);
+	inb(s->ioenh + SV_CODEC_STATUS); /* clear ints */
+	wrindir(s, SV_CIDRIVECONTROL, 0);  /* drive current 16mA */
+	wrindir(s, SV_CIENABLE, s->enable = 0);  /* disable DMAA and DMAC */
+	outb(~(SV_CINTMASK_DMAA | SV_CINTMASK_DMAC), s->ioenh + SV_CODEC_INTMASK);
+	/* outb(0xff, s->iodmaa + SV_DMA_RESET); */
+	/* outb(0xff, s->iodmac + SV_DMA_RESET); */
+	inb(s->ioenh + SV_CODEC_STATUS); /* ack interrupts */
+	wrindir(s, SV_CIADCCLKSOURCE, 0); /* use pll as ADC clock source */
+	wrindir(s, SV_CIANALOGPWRDOWN, 0); /* power up the analog parts of the device */
+	wrindir(s, SV_CIDIGITALPWRDOWN, 0); /* power up the digital parts of the device */
+	setpll(s, SV_CIADCPLLM, 8000);
+	wrindir(s, SV_CISRSSPACE, 0x80); /* SRS off */
+	wrindir(s, SV_CIPCMSR0, (8000 * 65536 / FULLRATE) & 0xff);
+	wrindir(s, SV_CIPCMSR1, ((8000 * 65536 / FULLRATE) >> 8) & 0xff);
+	wrindir(s, SV_CIADCOUTPUT, 0);
+	/* request irq */
+	if ((ret=request_irq(s->irq,sv_interrupt,SA_SHIRQ,"S3 SonicVibes",s))) {
+		printk(KERN_ERR "sv: irq %u in use\n", s->irq);
+		goto err_irq;
+	}
+	printk(KERN_INFO "sv: found adapter at io %#lx irq %u dmaa %#06x dmac %#06x revision %u\n",
+	       s->ioenh, s->irq, s->iodmaa, s->iodmac, rdindir(s, SV_CIREVISION));
+	/* register devices */
+	if ((s->dev_audio = register_sound_dsp(&sv_audio_fops, -1)) < 0) {
+		ret = s->dev_audio;
+		goto err_dev1;
+	}
+	if ((s->dev_mixer = register_sound_mixer(&sv_mixer_fops, -1)) < 0) {
+		ret = s->dev_mixer;
+		goto err_dev2;
+	}
+	if ((s->dev_midi = register_sound_midi(&sv_midi_fops, -1)) < 0) {
+		ret = s->dev_midi;
+		goto err_dev3;
+	}
+	if ((s->dev_dmfm = register_sound_special(&sv_dmfm_fops, 15 /* ?? */)) < 0) {
+		ret = s->dev_dmfm;
+		goto err_dev4;
+	}
+	pci_set_master(pcidev);  /* enable bus mastering */
+	/* initialize the chips */
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	val = SOUND_MASK_LINE|SOUND_MASK_SYNTH;
+	mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
+	for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
+		val = initvol[i].vol;
+		mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
+	}
+	set_fs(fs);
+	/* register gameport */
+	sv_register_gameport(s, gpio);
+	/* store it in the driver field */
+	pci_set_drvdata(pcidev, s);
+	/* put it into driver list */
+	list_add_tail(&s->devs, &devs);
+	/* increment devindex */
+	if (devindex < NR_DEVICE-1)
+		devindex++;
+	return 0;
+
+ err_dev4:
+	unregister_sound_midi(s->dev_midi);
+ err_dev3:
+	unregister_sound_mixer(s->dev_mixer);
+ err_dev2:
+	unregister_sound_dsp(s->dev_audio);
+ err_dev1:
+	printk(KERN_ERR "sv: cannot register misc device\n");
+	free_irq(s->irq, s);
+ err_irq:
+	release_region(s->iosynth, SV_EXTENT_SYNTH);
+ err_region1:
+	release_region(s->iomidi, SV_EXTENT_MIDI);
+ err_region2:
+	release_region(s->iodmac, SV_EXTENT_DMA);
+ err_region3:
+	release_region(s->iodmaa, SV_EXTENT_DMA);
+ err_region4:
+	release_region(s->ioenh, SV_EXTENT_ENH);
+ err_region5:
+	kfree(s);
+	return ret;
+}
+
+static void __devexit sv_remove(struct pci_dev *dev)
+{
+	struct sv_state *s = pci_get_drvdata(dev);
+
+	if (!s)
+		return;
+	list_del(&s->devs);
+	outb(~0, s->ioenh + SV_CODEC_INTMASK);  /* disable ints */
+	synchronize_irq(s->irq);
+	inb(s->ioenh + SV_CODEC_STATUS); /* ack interrupts */
+	wrindir(s, SV_CIENABLE, 0);     /* disable DMAA and DMAC */
+	/*outb(0, s->iodmaa + SV_DMA_RESET);*/
+	/*outb(0, s->iodmac + SV_DMA_RESET);*/
+	free_irq(s->irq, s);
+	if (s->gameport) {
+		int gpio = s->gameport->io;
+		gameport_unregister_port(s->gameport);
+		release_region(gpio, SV_EXTENT_GAME);
+	}
+	release_region(s->iodmac, SV_EXTENT_DMA);
+	release_region(s->iodmaa, SV_EXTENT_DMA);
+	release_region(s->ioenh, SV_EXTENT_ENH);
+	release_region(s->iomidi, SV_EXTENT_MIDI);
+	release_region(s->iosynth, SV_EXTENT_SYNTH);
+	unregister_sound_dsp(s->dev_audio);
+	unregister_sound_mixer(s->dev_mixer);
+	unregister_sound_midi(s->dev_midi);
+	unregister_sound_special(s->dev_dmfm);
+	kfree(s);
+	pci_set_drvdata(dev, NULL);
+}
+
+static struct pci_device_id id_table[] = {
+       { PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_SONICVIBES, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
+       { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, id_table);
+
+static struct pci_driver sv_driver = {
+       .name		= "sonicvibes",
+       .id_table	= id_table,
+       .probe		= sv_probe,
+       .remove		= __devexit_p(sv_remove),
+};
+ 
+static int __init init_sonicvibes(void)
+{
+	printk(KERN_INFO "sv: version v0.31 time " __TIME__ " " __DATE__ "\n");
+#if 0
+	if (!(wavetable_mem = __get_free_pages(GFP_KERNEL, 20-PAGE_SHIFT)))
+		printk(KERN_INFO "sv: cannot allocate 1MB of contiguous nonpageable memory for wavetable data\n");
+#endif
+	return pci_module_init(&sv_driver);
+}
+
+static void __exit cleanup_sonicvibes(void)
+{
+	printk(KERN_INFO "sv: unloading\n");
+	pci_unregister_driver(&sv_driver);
+ 	if (wavetable_mem)
+		free_pages(wavetable_mem, 20-PAGE_SHIFT);
+}
+
+module_init(init_sonicvibes);
+module_exit(cleanup_sonicvibes);
+
+/* --------------------------------------------------------------------- */
+
+#ifndef MODULE
+
+/* format is: sonicvibes=[reverb] sonicvibesdmaio=dmaioaddr */
+
+static int __init sonicvibes_setup(char *str)
+{
+	static unsigned __initdata nr_dev = 0;
+
+	if (nr_dev >= NR_DEVICE)
+		return 0;
+#if 0
+	if (get_option(&str, &reverb[nr_dev]) == 2)
+		(void)get_option(&str, &wavetable[nr_dev]);
+#else
+	(void)get_option(&str, &reverb[nr_dev]);
+#endif
+
+	nr_dev++;
+	return 1;
+}
+
+__setup("sonicvibes=", sonicvibes_setup);
+
+#endif /* MODULE */
-- 
cgit v1.2.1