freebsd-dev/sys/i386/isa/sound/soundcard.c
Jordan K. Hubbard ae28ee13b4 Update the sound driver to VOXWARE 3.05 with one GUS patch from
Amancio.  There is some SoundSource support here that is primitive and
probably doesn't work, but I'll let the two submitters let me know
how my integration of that was since I don't have this card to test.
I've only tested this on my GUS MAX since it's all I have.

This all probably needs to be re-done anyway since we're widely variant
from the original VOXWARE source in the current layout.
Submitted by:	Amancio Hasty and Jim Lowe
Obtained from:  Hannu Savolainen
1995-07-28 21:40:49 +00:00

463 lines
11 KiB
C

/*
* sound/386bsd/soundcard.c
*
* Soundcard driver for FreeBSD.
*
* Copyright by Hannu Savolainen 1993
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: soundcard.c,v 1.24 1995/03/12 23:34:10 swallace Exp $
*/
#include "sound_config.h"
#ifdef CONFIGURE_SOUNDCARD
#include "dev_table.h"
u_int snd1_imask;
u_int snd2_imask;
u_int snd3_imask;
u_int snd4_imask;
u_int snd5_imask;
u_int snd6_imask;
u_int snd7_imask;
u_int snd8_imask;
u_int snd9_imask;
#define FIX_RETURN(ret) {if ((ret)<0) return -(ret); else return 0;}
static int timer_running = 0;
static int soundcards_installed = 0; /* Number of installed
* soundcards */
static int soundcard_configured = 0;
static struct fileinfo files[SND_NDEVS];
struct selinfo selinfo[SND_NDEVS >> 4];
int sndprobe (struct isa_device *dev);
int sndattach (struct isa_device *dev);
int sndopen (dev_t dev, int flags);
int sndclose (dev_t dev, int flags);
int sndioctl (dev_t dev, int cmd, caddr_t arg, int mode);
int sndread (int dev, struct uio *uio);
int sndwrite (int dev, struct uio *uio);
int sndselect (int dev, int rw, struct proc *p);
static void sound_mem_init(void);
struct isa_driver opldriver = {sndprobe, sndattach, "opl"};
struct isa_driver sbdriver = {sndprobe, sndattach, "sb"};
struct isa_driver sbxvidriver = {sndprobe, sndattach, "sbxvi"};
struct isa_driver sbmididriver = {sndprobe, sndattach, "sbmidi"};
struct isa_driver pasdriver = {sndprobe, sndattach, "pas"};
struct isa_driver mpudriver = {sndprobe, sndattach, "mpu"};
struct isa_driver gusdriver = {sndprobe, sndattach, "gus"};
struct isa_driver gusxvidriver = {sndprobe, sndattach, "gusxvi"};
struct isa_driver gusmaxdriver = {sndprobe, sndattach, "gusmax"};
struct isa_driver uartdriver = {sndprobe, sndattach, "uart"};
struct isa_driver mssdriver = {sndprobe, sndattach, "mss"};
void
adintr(INT_HANDLER_PARMS(irq,dummy))
{
#ifndef EXCLUDE_AD1848
ad1848_interrupt(INT_HANDLER_CALL(irq));
#endif
}
unsigned
long
get_time(void)
{
struct timeval timecopy;
int x;
x = splclock();
timecopy = time;
splx(x);
return timecopy.tv_usec/(1000000/HZ) +
(unsigned long)timecopy.tv_sec*HZ;
}
int
sndread (int dev, struct uio *buf)
{
int count = buf->uio_resid;
dev = minor (dev);
FIX_RETURN (sound_read_sw (dev, &files[dev], buf, count));
}
int
sndwrite (int dev, struct uio *buf)
{
int count = buf->uio_resid;
dev = minor (dev);
FIX_RETURN (sound_write_sw (dev, &files[dev], buf, count));
}
int
sndopen (dev_t dev, int flags)
{
int retval;
dev = minor (dev);
if (!soundcard_configured && dev)
{
printk ("SoundCard Error: The soundcard system has not been configured\n");
FIX_RETURN (-ENODEV);
}
files[dev].mode = 0;
if (flags & FREAD && flags & FWRITE)
files[dev].mode = OPEN_READWRITE;
else if (flags & FREAD)
files[dev].mode = OPEN_READ;
else if (flags & FWRITE)
files[dev].mode = OPEN_WRITE;
selinfo[dev >> 4].si_pid = 0;
selinfo[dev >> 4].si_flags = 0;
FIX_RETURN(sound_open_sw (dev, &files[dev]));
}
int
sndclose (dev_t dev, int flags)
{
dev = minor (dev);
sound_release_sw(dev, &files[dev]);
FIX_RETURN (0);
}
int
sndioctl (dev_t dev, int cmd, caddr_t arg, int mode)
{
dev = minor (dev);
FIX_RETURN (sound_ioctl_sw (dev, &files[dev], cmd, (unsigned int) arg));
}
int
sndselect (int dev, int rw, struct proc *p)
{
dev = minor (dev);
DEB (printk ("snd_select(dev=%d, rw=%d, pid=%d)\n", dev, rw, p->p_pid));
#ifdef ALLOW_SELECT
switch (dev & 0x0f)
{
#ifndef EXCLUDE_SEQUENCER
case SND_DEV_SEQ:
case SND_DEV_SEQ2:
return sequencer_select (dev, &files[dev], rw, p);
break;
#endif
#ifndef EXCLUDE_MIDI
case SND_DEV_MIDIN:
return MIDIbuf_select (dev, &files[dev], rw, p);
break;
#endif
#ifndef EXCLUDE_AUDIO
case SND_DEV_DSP:
case SND_DEV_DSP16:
case SND_DEV_AUDIO:
return audio_select (dev, &files[dev], rw, p);
break;
#endif
default:
return 0;
}
#endif
return 0;
}
static unsigned short
ipri_to_irq (unsigned short ipri)
{
/*
* Converts the ipri (bitmask) to the corresponding irq number
*/
int irq;
for (irq = 0; irq < 16; irq++)
if (ipri == (1 << irq))
return irq;
return -1; /* Invalid argument */
}
static int
driver_to_voxunit(struct isa_driver *driver)
{
/* converts a sound driver pointer into the equivalent
VoxWare device unit number */
if(driver == &opldriver)
return(SNDCARD_ADLIB);
else if(driver == &sbdriver)
return(SNDCARD_SB);
else if(driver == &pasdriver)
return(SNDCARD_PAS);
else if(driver == &gusdriver)
return(SNDCARD_GUS);
else if(driver == &mpudriver)
return(SNDCARD_MPU401);
else if(driver == &sbxvidriver)
return(SNDCARD_SB16);
else if(driver == &sbmididriver)
return(SNDCARD_SB16MIDI);
else if(driver == &uartdriver)
return(SNDCARD_UART6850);
else if(driver == &gusdriver)
return(SNDCARD_GUS16);
else if(driver == &mssdriver)
return(SNDCARD_MSS);
else
return(0);
}
int
sndprobe (struct isa_device *dev)
{
struct address_info hw_config;
int unit;
unit = driver_to_voxunit(dev->id_driver);
hw_config.io_base = dev->id_iobase;
hw_config.irq = ipri_to_irq (dev->id_irq);
hw_config.dma = dev->id_drq;
hw_config.dma_read = dev->id_flags; /* misuse the flags field for read dma*/
if(unit)
return sndtable_probe (unit, &hw_config);
else
return 0;
}
int
sndattach (struct isa_device *dev)
{
int i, unit;
static int midi_initialized = 0;
static int seq_initialized = 0;
static int generic_midi_initialized = 0;
unsigned long mem_start = 0xefffffffUL;
struct address_info hw_config;
unit = driver_to_voxunit(dev->id_driver);
hw_config.io_base = dev->id_iobase;
hw_config.irq = ipri_to_irq (dev->id_irq);
hw_config.dma = dev->id_drq;
hw_config.dma_read = dev->id_flags; /* misuse the flags field for read dma*/
if(!unit)
return FALSE;
if (!sndtable_init_card (unit, &hw_config))
{
printf (" <Driver not configured>");
return FALSE;
}
/*
* Init the high level sound driver
*/
if (!(soundcards_installed = sndtable_get_cardcount ()))
{
printf (" <No such hardware>");
return FALSE; /* No cards detected */
}
printf("\n");
#ifndef EXCLUDE_AUDIO
if (num_audiodevs) /* Audio devices present */
{
mem_start = DMAbuf_init (mem_start);
mem_start = audio_init (mem_start);
sound_mem_init ();
}
soundcard_configured = 1;
#endif
#ifndef EXCLUDE_MIDI
if (num_midis && !midi_initialized)
{
midi_initialized = 1;
mem_start = MIDIbuf_init (mem_start);
}
#endif
#ifndef EXCLUDE_SEQUENCER
if ((num_midis + num_synths) && !seq_initialized)
{
seq_initialized = 1;
mem_start = sequencer_init (mem_start);
}
#endif
return TRUE;
}
void
tenmicrosec (void)
{
int i;
for (i = 0; i < 16; i++)
inb (0x80);
}
#ifndef EXCLUDE_SEQUENCER
void
request_sound_timer (int count)
{
static int current = 0;
int tmp = count;
if (count < 0)
timeout ((timeout_func_t)sequencer_timer, 0, -count);
else
{
if (count < current)
current = 0; /* Timer restarted */
count = count - current;
current = tmp;
if (!count)
count = 1;
timeout ((timeout_func_t)sequencer_timer, 0, count);
}
timer_running = 1;
}
void
sound_stop_timer (void)
{
if (timer_running)
untimeout ((timeout_func_t)sequencer_timer, 0);
timer_running = 0;
}
#endif
#ifndef EXCLUDE_AUDIO
static void
sound_mem_init (void)
{
int i, dev;
unsigned long dma_pagesize;
struct dma_buffparms *dmap;
static unsigned long dsp_init_mask = 0;
for (dev = 0; dev < num_audiodevs; dev++) /* Enumerate devices */
if (!(dsp_init_mask & (1 << dev))) /* Not already done */
if (audio_devs[dev]->buffcount > 0 && audio_devs[dev]->dmachan > 0)
{
dsp_init_mask |= (1 << dev);
dmap = audio_devs[dev]->dmap;
if (audio_devs[dev]->flags & DMA_AUTOMODE)
audio_devs[dev]->buffcount = 1;
if (audio_devs[dev]->dmachan > 3 && audio_devs[dev]->buffsize > 65536)
dma_pagesize = 131072; /* 128k */
else
dma_pagesize = 65536;
/* More sanity checks */
if (audio_devs[dev]->buffsize > dma_pagesize)
audio_devs[dev]->buffsize = dma_pagesize;
audio_devs[dev]->buffsize &= ~0xfff; /* Truncate to n*4k */
if (audio_devs[dev]->buffsize < 4096)
audio_devs[dev]->buffsize = 4096;
/* Now allocate the buffers */
for (dmap->raw_count = 0; dmap->raw_count < audio_devs[dev]->buffcount; dmap->raw_count++)
{
char *tmpbuf = (char *)vm_page_alloc_contig(audio_devs[dev]->buffsize, 0ul, 0xfffffful, dma_pagesize);
if (tmpbuf == NULL)
{
printk ("snd: Unable to allocate %d bytes of buffer\n",
audio_devs[dev]->buffsize);
return;
}
dmap->raw_buf[dmap->raw_count] = tmpbuf;
/*
* Use virtual address as the physical address, since
* isa_dmastart performs the phys address computation.
*/
dmap->raw_buf_phys[dmap->raw_count] =
(unsigned long) dmap->raw_buf[dmap->raw_count];
}
} /* for dev */
}
#endif
int
snd_ioctl_return (int *addr, int value)
{
if (value < 0)
return value; /* Error */
suword (addr, value);
return 0;
}
int
snd_set_irq_handler (int interrupt_level, INT_HANDLER_PROTO(), char *name)
{
return 1;
}
void
snd_release_irq(int vect)
{
}
#endif