patch-2.1.109 linux/drivers/sound/sonicvibes.c
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- Lines: 2455
- Date:
Fri Jul 10 14:03:36 1998
- Orig file:
v2.1.108/linux/drivers/sound/sonicvibes.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.1.108/linux/drivers/sound/sonicvibes.c linux/drivers/sound/sonicvibes.c
@@ -0,0 +1,2454 @@
+/*****************************************************************************/
+
+/*
+ * sonicvibes.c -- S3 Sonic Vibes audio driver.
+ *
+ * Copyright (C) 1998 Thomas Sailer (sailer@ife.ee.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
+ * 06.05.98 0.1 Initial release
+ * 10.05.98 0.2 Fixed many bugs, esp. ADC rate calculation
+ * First stab at a simple midi interface (no bells&whistles)
+ * 13.05.98 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)
+ * 14.05.98 0.4 Don't allow excessive interrupt rates
+ * 08.06.98 0.5 First release using Alan Cox' soundcore instead of miscdevice
+ *
+ */
+
+/*****************************************************************************/
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/modversions.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/sound.h>
+#include <linux/malloc.h>
+#include <linux/soundcard.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <asm/spinlock.h>
+#include <asm/uaccess.h>
+#include <asm/hardirq.h>
+
+#include "dm.h"
+
+/* --------------------------------------------------------------------- */
+
+#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
+
+
+#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
+
+#define SND_DEV_DSP16 5
+
+/* --------------------------------------------------------------------- */
+
+struct sv_state {
+ /* magic */
+ unsigned int magic;
+
+ /* we keep sv cards in a linked list */
+ struct sv_state *next;
+
+ /* soundcore stuff */
+ int dev_audio;
+ int dev_mixer;
+ int dev_midi;
+ int dev_dmfm;
+
+ /* hardware resources */
+ unsigned int iosb, ioenh, iosynth, iomidi, iogame, iodmaa, iodmac, irq;
+
+ /* mixer stuff */
+ struct {
+ unsigned int modcnt;
+ } mix;
+
+ /* wave stuff */
+ unsigned int rateadc, ratedac;
+ unsigned char fmt, enable;
+
+ spinlock_t lock;
+ struct semaphore open_sem;
+ mode_t open_mode;
+ struct wait_queue *open_wait;
+
+ struct dmabuf {
+ void *rawbuf;
+ unsigned buforder;
+ unsigned numfrag;
+ unsigned fragshift;
+ unsigned hwptr, swptr;
+ unsigned total_bytes;
+ int count;
+ unsigned error; /* over/underrun */
+ struct wait_queue *wait;
+ /* redundant, but makes calculations easier */
+ unsigned fragsize;
+ unsigned dmasize;
+ unsigned fragsamples;
+ /* OSS stuff */
+ unsigned mapped:1;
+ unsigned ready:1;
+ unsigned endcleared:1;
+ unsigned ossfragshift;
+ int ossmaxfrags;
+ unsigned subdivision;
+ } dma_dac, dma_adc;
+
+ /* midi stuff */
+ struct {
+ unsigned ird, iwr, icnt;
+ unsigned ord, owr, ocnt;
+ struct wait_queue *iwait;
+ struct wait_queue *owait;
+ struct timer_list timer;
+ unsigned char ibuf[MIDIINBUF];
+ unsigned char obuf[MIDIOUTBUF];
+ } midi;
+};
+
+/* --------------------------------------------------------------------- */
+
+static struct sv_state *devs = NULL;
+static unsigned long wavetable_mem = 0;
+
+/* --------------------------------------------------------------------- */
+
+extern __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
+
+extern __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);
+}
+
+extern __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 */
+}
+
+extern __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, n;
+ unsigned xm, xn, xr, xd, metric = ~0U;
+
+ 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);
+}
+
+/* --------------------------------------------------------------------- */
+
+extern 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);
+}
+
+extern 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 < 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 8
+#define DMABUF_MINORDER 1
+
+
+static void dealloc_dmabuf(struct dmabuf *db)
+{
+ unsigned long map, mapend;
+
+ if (db->rawbuf) {
+ /* undo marking the pages as reserved */
+ mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
+ for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
+ clear_bit(PG_reserved, &mem_map[map].flags);
+ free_pages((unsigned long)db->rawbuf, db->buforder);
+ }
+ 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;
+ unsigned long map, mapend;
+ 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 && !db->rawbuf; order--)
+ db->rawbuf = (void *)__get_free_pages(GFP_KERNEL | GFP_DMA, order);
+ 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_page_range doesn't do what we want */
+ mapend = MAP_NR(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
+ for (map = MAP_NR(db->rawbuf); map <= mapend; map++)
+ set_bit(PG_reserved, &mem_map[map].flags);
+ }
+ 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, virt_to_bus(db->rawbuf), 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, virt_to_bus(db->rawbuf), 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->ready = 1;
+ return 0;
+}
+
+extern __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.mapped) {
+ if (s->dma_adc.count >= s->dma_adc.fragsize)
+ wake_up(&s->dma_adc.wait);
+ } else {
+ if (s->dma_adc.count > 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++;
+ }
+ if (s->dma_adc.count > 0)
+ wake_up(&s->dma_adc.wait);
+ }
+ }
+ /* 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 >= 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 <= s->dma_dac.fragsize && !s->dma_dac.endcleared) {
+ clear_advance(s);
+ s->dma_dac.endcleared = 1;
+ }
+ if (s->dma_dac.count < 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 void 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;
+ spin_lock(&s->lock);
+ sv_update_ptr(s);
+ sv_handle_midi(s);
+ spin_unlock(&s->lock);
+}
+
+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 }
+};
+
+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);
+}
+
+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;
+
+ VALIDATE_STATE(s);
+ if (cmd == SOUND_MIXER_INFO) {
+ mixer_info info;
+ strncpy(info.id, "SonicVibes", sizeof(info.id));
+ strncpy(info.name, "S3 SonicVibes", sizeof(info.name));
+ info.modify_counter = s->mix.modcnt;
+ if (copy_to_user((void *)arg, &info, sizeof(info)))
+ return -EFAULT;
+ return 0;
+ }
+ if (cmd == SOUND_OLD_MIXER_INFO) {
+ _old_mixer_info info;
+ strncpy(info.id, "SonicVibes", sizeof(info.id));
+ strncpy(info.name, "S3 SonicVibes", sizeof(info.name));
+ if (copy_to_user((void *)arg, &info, sizeof(info)))
+ return -EFAULT;
+ return 0;
+ }
+ if (cmd == OSS_GETVERSION)
+ return put_user(SOUND_VERSION, (int *)arg);
+ if (cmd == SOUND_MIXER_PRIVATE1) { /* SRS settings */
+ get_user_ret(val, (int *)arg, -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, (int *)arg);
+ return put_user(((4 - (l & 7)) << 2) | ((4 - (r & 7)) << 5) | 2, (int *)arg);
+ }
+ 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: /* Arg contains a bit for each recording source */
+ return put_user(mixer_recmask(s), (int *)arg);
+
+ 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, (int *)arg);
+
+ 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, (int *)arg);
+
+ 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, (int *)arg);
+
+ case SOUND_MIXER_CAPS:
+ return put_user(SOUND_CAP_EXCL_INPUT, (int *)arg);
+
+ default:
+ i = _IOC_NR(cmd);
+ if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
+ return -EINVAL;
+ return return_mixval(s, i, (int *)arg);
+ }
+ }
+ if (_IOC_DIR(cmd) != (_IOC_READ|_IOC_WRITE))
+ return -EINVAL;
+ s->mix.modcnt++;
+ switch (_IOC_NR(cmd)) {
+ case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
+ get_user_ret(val, (int *)arg, -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;
+ get_user_ret(val, (int *)arg, -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);
+ return return_mixval(s, i, (int *)arg);
+ }
+}
+
+/* --------------------------------------------------------------------- */
+
+static loff_t sv_llseek(struct file *file, loff_t offset, int origin)
+{
+ return -ESPIPE;
+}
+
+/* --------------------------------------------------------------------- */
+
+static int sv_open_mixdev(struct inode *inode, struct file *file)
+{
+ int minor = MINOR(inode->i_rdev);
+ struct sv_state *s = devs;
+
+ while (s && s->dev_mixer != minor)
+ s = s->next;
+ if (!s)
+ return -ENODEV;
+ VALIDATE_STATE(s);
+ file->private_data = s;
+ MOD_INC_USE_COUNT;
+ return 0;
+}
+
+static int sv_release_mixdev(struct inode *inode, struct file *file)
+{
+ struct sv_state *s = (struct sv_state *)file->private_data;
+
+ VALIDATE_STATE(s);
+ MOD_DEC_USE_COUNT;
+ 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 = {
+ &sv_llseek,
+ NULL, /* read */
+ NULL, /* write */
+ NULL, /* readdir */
+ NULL, /* poll */
+ &sv_ioctl_mixdev,
+ NULL, /* mmap */
+ &sv_open_mixdev,
+ &sv_release_mixdev,
+ NULL, /* fsync */
+ NULL, /* fasync */
+ NULL, /* check_media_change */
+ NULL, /* revalidate */
+ NULL, /* lock */
+};
+
+/* --------------------------------------------------------------------- */
+
+static int drain_dac(struct sv_state *s, int nonblock)
+{
+ struct wait_queue wait = { current, NULL };
+ unsigned long flags;
+ int count, tmo;
+
+ if (s->dma_dac.mapped)
+ return 0;
+ current->state = TASK_INTERRUPTIBLE;
+ add_wait_queue(&s->dma_dac.wait, &wait);
+ for (;;) {
+ 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 >> SV_CFMT_ASHIFT) & SV_CFMT_MASK];
+ current->timeout = jiffies + (tmo ? tmo : 1);
+ schedule();
+ if (tmo && !current->timeout)
+ printk(KERN_DEBUG "sv: dma timed out??\n");
+ current->timeout = 0;
+ }
+ remove_wait_queue(&s->dma_dac.wait, &wait);
+ current->state = TASK_RUNNING;
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ return 0;
+}
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t sv_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
+{
+ struct sv_state *s = (struct sv_state *)file->private_data;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned swptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (ppos != &file->f_pos)
+ return -ESPIPE;
+ 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
+ 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;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ start_adc(s);
+ if (file->f_flags & O_NONBLOCK)
+ return ret ? ret : -EBUSY;
+ interruptible_sleep_on(&s->dma_adc.wait);
+ if (signal_pending(current))
+ return ret ? ret : -ERESTARTSYS;
+ continue;
+ }
+ if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt))
+ return ret ? ret : -EFAULT;
+ 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);
+ }
+ return ret;
+}
+
+static ssize_t sv_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
+{
+ struct sv_state *s = (struct sv_state *)file->private_data;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned swptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (ppos != &file->f_pos)
+ return -ESPIPE;
+ 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
+ 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)
+ return ret ? ret : -EBUSY;
+ interruptible_sleep_on(&s->dma_dac.wait);
+ if (signal_pending(current))
+ return ret ? ret : -ERESTARTSYS;
+ continue;
+ }
+ if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt))
+ return ret ? ret : -EFAULT;
+ 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 ret;
+}
+
+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_flags & FMODE_WRITE)
+ poll_wait(file, &s->dma_dac.wait, wait);
+ if (file->f_flags & FMODE_READ)
+ poll_wait(file, &s->dma_adc.wait, wait);
+ spin_lock_irqsave(&s->lock, flags);
+ sv_update_ptr(s);
+ if (file->f_flags & FMODE_READ) {
+ if (s->dma_adc.mapped) {
+ if (s->dma_adc.count >= s->dma_adc.fragsize)
+ mask |= POLLIN | POLLRDNORM;
+ } else {
+ if (s->dma_adc.count > 0)
+ mask |= POLLIN | POLLRDNORM;
+ }
+ }
+ if (file->f_flags & FMODE_WRITE) {
+ if (s->dma_dac.mapped) {
+ if (s->dma_dac.count >= s->dma_dac.fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ } else {
+ if (s->dma_dac.dmasize > s->dma_dac.count)
+ 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;
+ unsigned long size;
+
+ VALIDATE_STATE(s);
+ if (vma->vm_flags & VM_WRITE) {
+ if ((ret = prog_dmabuf(s, 1)) != 0)
+ return ret;
+ db = &s->dma_dac;
+ } else if (vma->vm_flags & VM_READ) {
+ if ((ret = prog_dmabuf(s, 0)) != 0)
+ return ret;
+ db = &s->dma_adc;
+ } else
+ return -EINVAL;
+ if (vma->vm_offset != 0)
+ return -EINVAL;
+ size = vma->vm_end - vma->vm_start;
+ if (size > (PAGE_SIZE << db->buforder))
+ return -EINVAL;
+ if (remap_page_range(vma->vm_start, virt_to_phys(db->rawbuf), size, vma->vm_page_prot))
+ return -EAGAIN;
+ db->mapped = 1;
+ vma->vm_file = file;
+ file->f_count++;
+ return 0;
+}
+
+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 val, mapped, ret;
+ unsigned char fmtm, fmtd;
+
+ 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, (int *)arg);
+
+ 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, (int *)arg);
+
+ case SNDCTL_DSP_RESET:
+ if (file->f_mode & FMODE_WRITE) {
+ stop_dac(s);
+ synchronize_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->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
+ }
+ return 0;
+
+ case SNDCTL_DSP_SPEED:
+ get_user_ret(val, (int *)arg, -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, (int *)arg);
+
+ case SNDCTL_DSP_STEREO:
+ get_user_ret(val, (int *)arg, -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:
+ get_user_ret(val, (int *)arg, -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, (int *)arg);
+
+ case SNDCTL_DSP_GETFMTS: /* Returns a mask */
+ return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
+
+ case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
+ get_user_ret(val, (int *)arg, -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, (int *)arg);
+
+ 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, (int *)arg);
+
+ case SNDCTL_DSP_SETTRIGGER:
+ get_user_ret(val, (int *)arg, -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->enable & SV_CENABLE_PE) && (val = prog_dmabuf(s, 0)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ sv_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((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+
+ case SNDCTL_DSP_GETISPACE:
+ if (!(file->f_mode & FMODE_READ))
+ return -EINVAL;
+ if (!(s->enable & SV_CENABLE_RE) && (val = prog_dmabuf(s, 1)) != 0)
+ return val;
+ spin_lock_irqsave(&s->lock, flags);
+ sv_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((void *)arg, &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;
+ spin_lock_irqsave(&s->lock, flags);
+ sv_update_ptr(s);
+ val = s->dma_dac.count;
+ spin_unlock_irqrestore(&s->lock, flags);
+ return put_user(val, (int *)arg);
+
+ case SNDCTL_DSP_GETIPTR:
+ if (!(file->f_mode & FMODE_READ))
+ return -EINVAL;
+ spin_lock_irqsave(&s->lock, flags);
+ sv_update_ptr(s);
+ cinfo.bytes = s->dma_adc.total_bytes;
+ cinfo.blocks = s->dma_adc.total_bytes >> 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);
+ return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
+
+ case SNDCTL_DSP_GETOPTR:
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ spin_lock_irqsave(&s->lock, flags);
+ sv_update_ptr(s);
+ cinfo.bytes = s->dma_dac.total_bytes;
+ cinfo.blocks = s->dma_dac.total_bytes >> 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);
+ return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
+
+ 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, (int *)arg);
+ }
+ if ((val = prog_dmabuf(s, 1)))
+ return val;
+ return put_user(s->dma_adc.fragsize, (int *)arg);
+
+ case SNDCTL_DSP_SETFRAGMENT:
+ get_user_ret(val, (int *)arg, -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;
+ get_user_ret(val, (int *)arg, -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_WRITE_FILTER:
+ case SNDCTL_DSP_SETSYNCRO:
+ case SOUND_PCM_READ_RATE:
+ case SOUND_PCM_READ_CHANNELS:
+ case SOUND_PCM_READ_BITS:
+ 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 = MINOR(inode->i_rdev);
+ struct sv_state *s = devs;
+ unsigned char fmtm = ~0, fmts = 0;
+
+ while (s && ((s->dev_audio ^ minor) & ~0xf))
+ s = s->next;
+ if (!s)
+ return -ENODEV;
+ 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;
+ }
+ up(&s->open_sem);
+ interruptible_sleep_on(&s->open_wait);
+ 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;
+ 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;
+ set_dac_rate(s, 8000);
+ }
+ set_fmt(s, fmtm, fmts);
+ s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
+ up(&s->open_sem);
+ MOD_INC_USE_COUNT;
+ return 0;
+}
+
+static int sv_release(struct inode *inode, struct file *file)
+{
+ struct sv_state *s = (struct sv_state *)file->private_data;
+
+ VALIDATE_STATE(s);
+ if (file->f_mode & FMODE_WRITE)
+ drain_dac(s, file->f_flags & O_NONBLOCK);
+ down(&s->open_sem);
+ if (file->f_flags & FMODE_WRITE) {
+ stop_dac(s);
+ dealloc_dmabuf(&s->dma_dac);
+ }
+ if (file->f_flags & FMODE_READ) {
+ stop_adc(s);
+ dealloc_dmabuf(&s->dma_adc);
+ }
+ s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
+ up(&s->open_sem);
+ wake_up(&s->open_wait);
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+static /*const*/ struct file_operations sv_audio_fops = {
+ &sv_llseek,
+ &sv_read,
+ &sv_write,
+ NULL, /* readdir */
+ &sv_poll,
+ &sv_ioctl,
+ &sv_mmap,
+ &sv_open,
+ &sv_release,
+ NULL, /* fsync */
+ NULL, /* fasync */
+ NULL, /* check_media_change */
+ NULL, /* revalidate */
+ NULL, /* lock */
+};
+
+/* --------------------------------------------------------------------- */
+
+static ssize_t sv_midi_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
+{
+ struct sv_state *s = (struct sv_state *)file->private_data;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned ptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (ppos != &file->f_pos)
+ return -ESPIPE;
+ if (!access_ok(VERIFY_WRITE, buffer, count))
+ return -EFAULT;
+ ret = 0;
+ 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;
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (file->f_flags & O_NONBLOCK)
+ return ret ? ret : -EBUSY;
+ interruptible_sleep_on(&s->midi.iwait);
+ if (signal_pending(current))
+ return ret ? ret : -ERESTARTSYS;
+ continue;
+ }
+ if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt))
+ return ret ? ret : -EFAULT;
+ 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;
+ }
+ return ret;
+}
+
+static ssize_t sv_midi_write(struct file *file, const char *buffer, size_t count, loff_t *ppos)
+{
+ struct sv_state *s = (struct sv_state *)file->private_data;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned ptr;
+ int cnt;
+
+ VALIDATE_STATE(s);
+ if (ppos != &file->f_pos)
+ return -ESPIPE;
+ if (!access_ok(VERIFY_READ, buffer, count))
+ return -EFAULT;
+ ret = 0;
+ 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)
+ sv_handle_midi(s);
+ spin_unlock_irqrestore(&s->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (file->f_flags & O_NONBLOCK)
+ return ret ? ret : -EBUSY;
+ interruptible_sleep_on(&s->midi.owait);
+ if (signal_pending(current))
+ return ret ? ret : -ERESTARTSYS;
+ continue;
+ }
+ if (copy_from_user(s->midi.obuf + ptr, buffer, cnt))
+ return ret ? ret : -EFAULT;
+ 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);
+ }
+ return ret;
+}
+
+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_flags & FMODE_WRITE)
+ poll_wait(file, &s->midi.owait, wait);
+ if (file->f_flags & FMODE_READ)
+ poll_wait(file, &s->midi.iwait, wait);
+ spin_lock_irqsave(&s->lock, flags);
+ if (file->f_flags & FMODE_READ) {
+ if (s->midi.icnt > 0)
+ mask |= POLLIN | POLLRDNORM;
+ }
+ if (file->f_flags & 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 = MINOR(inode->i_rdev);
+ struct sv_state *s = devs;
+ unsigned long flags;
+
+ while (s && s->dev_midi != minor)
+ s = s->next;
+ if (!s)
+ return -ENODEV;
+ 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;
+ }
+ up(&s->open_sem);
+ interruptible_sleep_on(&s->open_wait);
+ 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);
+ MOD_INC_USE_COUNT;
+ return 0;
+}
+
+static int sv_midi_release(struct inode *inode, struct file *file)
+{
+ struct sv_state *s = (struct sv_state *)file->private_data;
+ struct wait_queue wait = { current, NULL };
+ unsigned long flags;
+ unsigned count, tmo;
+
+ VALIDATE_STATE(s);
+
+ if (file->f_mode & FMODE_WRITE) {
+ current->state = TASK_INTERRUPTIBLE;
+ add_wait_queue(&s->midi.owait, &wait);
+ for (;;) {
+ 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);
+ current->state = TASK_RUNNING;
+ return -EBUSY;
+ }
+ tmo = (count * HZ) / 3100;
+ current->timeout = tmo ? jiffies + tmo : 0;
+ schedule();
+ if (tmo && !current->timeout)
+ printk(KERN_DEBUG "sv: midi timed out??\n");
+ current->timeout = 0;
+ }
+ remove_wait_queue(&s->midi.owait, &wait);
+ 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);
+ up(&s->open_sem);
+ wake_up(&s->open_wait);
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+static /*const*/ struct file_operations sv_midi_fops = {
+ &sv_llseek,
+ &sv_midi_read,
+ &sv_midi_write,
+ NULL, /* readdir */
+ &sv_midi_poll,
+ NULL, /* ioctl */
+ NULL, /* mmap */
+ &sv_midi_open,
+ &sv_midi_release,
+ NULL, /* fsync */
+ NULL, /* fasync */
+ NULL, /* check_media_change */
+ NULL, /* revalidate */
+ NULL, /* lock */
+};
+
+/* --------------------------------------------------------------------- */
+
+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 *)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 *)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 *)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 = MINOR(inode->i_rdev);
+ struct sv_state *s = devs;
+
+ while (s && s->dev_dmfm != minor)
+ s = s->next;
+ if (!s)
+ return -ENODEV;
+ 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;
+ }
+ up(&s->open_sem);
+ interruptible_sleep_on(&s->open_wait);
+ 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);
+ MOD_INC_USE_COUNT;
+ return 0;
+}
+
+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);
+ 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);
+ }
+ up(&s->open_sem);
+ wake_up(&s->open_wait);
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+static /*const*/ struct file_operations sv_dmfm_fops = {
+ &sv_llseek,
+ NULL, /* read */
+ NULL, /* write */
+ NULL, /* readdir */
+ NULL, /* poll */
+ &sv_dmfm_ioctl,
+ NULL, /* mmap */
+ &sv_dmfm_open,
+ &sv_dmfm_release,
+ NULL, /* fsync */
+ NULL, /* fasync */
+ NULL, /* check_media_change */
+ NULL, /* revalidate */
+ NULL, /* lock */
+};
+
+/* --------------------------------------------------------------------- */
+
+/* maximum number of devices */
+#define NR_DEVICE 5
+
+static int reverb[NR_DEVICE] = { 0, };
+static int wavetable[NR_DEVICE] = { 0, };
+
+static unsigned dmaio = 0xac00;
+
+/* --------------------------------------------------------------------- */
+
+static const struct initvol {
+ int mixch;
+ int vol;
+} initvol[] __initdata = {
+ { 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 }
+};
+
+#ifdef MODULE
+__initfunc(int init_module(void))
+#else
+__initfunc(int init_sonicvibes(void))
+#endif
+{
+ struct sv_state *s;
+ struct pci_dev *pcidev = NULL;
+ mm_segment_t fs;
+ int i, val, index = 0;
+
+ if (!pci_present()) /* No PCI bus in this machine! */
+ return -ENODEV;
+ printk(KERN_INFO "sv: version v0.5 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
+ while (index < NR_DEVICE &&
+ (pcidev = pci_find_device(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_SONICVIBES, pcidev))) {
+ if (pcidev->base_address[1] == 0 ||
+ (pcidev->base_address[1] & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
+ continue;
+ if (pcidev->base_address[2] == 0 ||
+ (pcidev->base_address[2] & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
+ continue;
+ if (pcidev->base_address[3] == 0 ||
+ (pcidev->base_address[3] & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
+ continue;
+ if (pcidev->irq == 0)
+ continue;
+ if (!(s = kmalloc(sizeof(struct sv_state), GFP_KERNEL))) {
+ printk(KERN_WARNING "sv: out of memory\n");
+ continue;
+ }
+ memset(s, 0, sizeof(struct sv_state));
+ init_waitqueue(&s->dma_adc.wait);
+ init_waitqueue(&s->dma_dac.wait);
+ init_waitqueue(&s->open_wait);
+ init_waitqueue(&s->midi.iwait);
+ init_waitqueue(&s->midi.owait);
+ s->open_sem = MUTEX;
+ s->magic = SV_MAGIC;
+ s->iosb = pcidev->base_address[0] & PCI_BASE_ADDRESS_IO_MASK;
+ s->ioenh = pcidev->base_address[1] & PCI_BASE_ADDRESS_IO_MASK;
+ s->iosynth = pcidev->base_address[2] & PCI_BASE_ADDRESS_IO_MASK;
+ s->iomidi = pcidev->base_address[3] & PCI_BASE_ADDRESS_IO_MASK;
+ s->iogame = pcidev->base_address[4] & PCI_BASE_ADDRESS_IO_MASK;
+ pci_read_config_dword(pcidev, 0x40, &s->iodmaa);
+ pci_read_config_dword(pcidev, 0x48, &s->iodmac);
+ dmaio &= ~(SV_EXTENT_DMA-1);
+ s->iodmaa &= ~(SV_EXTENT_DMA-1);
+ s->iodmac &= ~(SV_EXTENT_DMA-1);
+ if (!(s->iodmaa)) {
+ s->iodmaa = dmaio;
+ dmaio += SV_EXTENT_DMA;
+ printk(KERN_INFO "sv: BIOS did not allocate DDMA channel A io, allocated at %#x\n",
+ s->iodmaa);
+ }
+ if (!(s->iodmac)) {
+ s->iodmac = dmaio;
+ dmaio += SV_EXTENT_DMA;
+ printk(KERN_INFO "sv: BIOS did not allocate DDMA channel C io, allocated at %#x\n",
+ s->iodmac);
+ }
+ 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: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
+ s->iosb, s->ioenh, s->iosynth, s->iomidi, s->iogame, s->iodmaa, s->iodmac);
+ if (s->ioenh == 0 || s->iodmaa == 0 || s->iodmac == 0)
+ continue;
+ s->irq = pcidev->irq;
+
+ /* hack */
+ pci_write_config_dword(pcidev, 0x60, wavetable_mem >> 12); /* wavetable base address */
+
+
+ if (check_region(s->ioenh, SV_EXTENT_ENH)) {
+ printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->ioenh, s->ioenh+SV_EXTENT_ENH-1);
+ goto err_region5;
+ }
+ request_region(s->ioenh, SV_EXTENT_ENH, "S3 SonicVibes PCM");
+ if (check_region(s->iodmaa, SV_EXTENT_DMA)) {
+ printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->iodmaa, s->iodmaa+SV_EXTENT_DMA-1);
+ goto err_region4;
+ }
+ request_region(s->iodmaa, SV_EXTENT_DMA, "S3 SonicVibes DMAA");
+ if (check_region(s->iodmac, SV_EXTENT_DMA)) {
+ printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->iodmac, s->iodmac+SV_EXTENT_DMA-1);
+ goto err_region3;
+ }
+ request_region(s->iodmac, SV_EXTENT_DMA, "S3 SonicVibes DMAC");
+ if (check_region(s->iomidi, SV_EXTENT_MIDI)) {
+ printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->iomidi, s->iomidi+SV_EXTENT_MIDI-1);
+ goto err_region2;
+ }
+ request_region(s->iomidi, SV_EXTENT_MIDI, "S3 SonicVibes Midi");
+ if (check_region(s->iosynth, SV_EXTENT_SYNTH)) {
+ printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->iosynth, s->iosynth+SV_EXTENT_SYNTH-1);
+ goto err_region1;
+ }
+ request_region(s->iosynth, SV_EXTENT_SYNTH, "S3 SonicVibes Synth");
+ /* 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 | SV_CCTRL_REVERB*/,
+ 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 (request_irq(s->irq, sv_interrupt, SA_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 %#06x 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)) < 0)
+ goto err_dev1;
+ if ((s->dev_mixer = register_sound_mixer(&sv_mixer_fops)) < 0)
+ goto err_dev2;
+ if ((s->dev_midi = register_sound_midi(&sv_midi_fops)) < 0)
+ goto err_dev3;
+ if ((s->dev_dmfm = register_sound_special(&sv_dmfm_fops, 15 /* ?? */)) < 0)
+ goto err_dev4;
+ /* 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);
+ /* queue it for later freeing */
+ s->next = devs;
+ devs = s;
+ index++;
+ continue;
+
+ 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(s, sizeof(struct sv_state));
+ }
+ if (!devs) {
+ if (wavetable_mem)
+ free_pages(wavetable_mem, 20-PAGE_SHIFT);
+ return -ENODEV;
+ }
+ return 0;
+}
+
+/* --------------------------------------------------------------------- */
+
+#ifdef MODULE
+
+MODULE_PARM(reverb, "1-" __MODULE_STRING(NR_DEVICE) "i");
+MODULE_PARM_DESC(reverb, "if 1 enables joystick interface (still need separate driver)");
+MODULE_PARM(wavetable, "1-" __MODULE_STRING(NR_DEVICE) "i");
+MODULE_PARM_DESC(wavetable, "if 1 the LINE input is converted to LINE out");
+
+MODULE_PARM(dmaio, "i");
+MODULE_PARM_DESC(dmaio, "if the motherboard BIOS did not allocate DDMA io, allocate them starting at this address");
+
+MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
+MODULE_DESCRIPTION("S3 SonicVibes Driver");
+
+void cleanup_module(void)
+{
+ struct sv_state *s;
+
+ while ((s = devs)) {
+ devs = devs->next;
+ outb(~0, s->ioenh + SV_CODEC_INTMASK); /* disable ints */
+ synchronize_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);
+ 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(s, sizeof(struct sv_state));
+ }
+ if (wavetable_mem)
+ free_pages(wavetable_mem, 20-PAGE_SHIFT);
+ printk(KERN_INFO "sv: unloading\n");
+}
+
+#endif /* MODULE */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov