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Diffstat (limited to 'sound/oss/sonicvibes.c')
| -rw-r--r-- | sound/oss/sonicvibes.c | 2792 |
1 files changed, 2792 insertions, 0 deletions
diff --git a/sound/oss/sonicvibes.c b/sound/oss/sonicvibes.c new file mode 100644 index 0000000..e1d6961 --- /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 */ |
