mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
431 lines
9.5 KiB
C
431 lines
9.5 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.
|
|
*
|
|
*/
|
|
|
|
#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;
|
|
extern char *snd_raw_buf[MAX_DSP_DEV][DSP_BUFFCOUNT];
|
|
extern unsigned long snd_raw_buf_phys[MAX_DSP_DEV][DSP_BUFFCOUNT];
|
|
extern int snd_raw_count[MAX_DSP_DEV];
|
|
|
|
static struct fileinfo files[SND_NDEVS];
|
|
|
|
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);
|
|
static void sound_mem_init(void);
|
|
|
|
unsigned
|
|
long
|
|
get_time()
|
|
{
|
|
extern struct timeval time;
|
|
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;
|
|
|
|
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)
|
|
{
|
|
dev = minor (dev);
|
|
|
|
DEB (printk ("sound_ioctl(dev=%d, cmd=0x%x, arg=0x%x)\n", dev, cmd, arg));
|
|
|
|
FIX_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 */
|
|
}
|
|
|
|
int
|
|
sndprobe (struct isa_device *dev)
|
|
{
|
|
struct address_info hw_config;
|
|
|
|
hw_config.io_base = dev->id_iobase;
|
|
hw_config.irq = ipri_to_irq (dev->id_irq);
|
|
hw_config.dma = dev->id_drq;
|
|
|
|
return sndtable_probe (dev->id_unit, &hw_config);
|
|
}
|
|
|
|
int
|
|
sndattach (struct isa_device *dev)
|
|
{
|
|
int i;
|
|
static int dsp_initialized = 0;
|
|
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;
|
|
|
|
hw_config.io_base = dev->id_iobase;
|
|
hw_config.irq = ipri_to_irq (dev->id_irq);
|
|
hw_config.dma = dev->id_drq;
|
|
|
|
if (dev->id_unit) /* Card init */
|
|
if (!sndtable_init_card (dev->id_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
|
|
soundcard_configured = 1;
|
|
if (num_dspdevs)
|
|
sound_mem_init ();
|
|
#endif
|
|
|
|
if (num_dspdevs && !dsp_initialized) /* Audio devices present */
|
|
{
|
|
dsp_initialized = 1;
|
|
mem_start = DMAbuf_init (mem_start);
|
|
mem_start = audio_init (mem_start);
|
|
}
|
|
|
|
/** UWM stuff **/
|
|
|
|
#ifndef EXCLUDE_CHIP_MIDI
|
|
|
|
if (!generic_midi_initialized)
|
|
{
|
|
generic_midi_initialized = 1;
|
|
mem_start = CMIDI_init (mem_start);
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifndef EXCLUDE_MPU401
|
|
if (num_midis && !midi_initialized)
|
|
{
|
|
midi_initialized = 1;
|
|
mem_start = MIDIbuf_init (mem_start);
|
|
}
|
|
#endif
|
|
|
|
if ((num_midis + num_synths) && !seq_initialized)
|
|
{
|
|
seq_initialized = 1;
|
|
mem_start = sequencer_init (mem_start);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
tenmicrosec (void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 16; i++)
|
|
inb (0x80);
|
|
}
|
|
|
|
#ifdef EXCLUDE_GUS
|
|
void
|
|
gusintr (int unit)
|
|
{
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
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;
|
|
}
|
|
|
|
#ifndef EXCLUDE_AUDIO
|
|
static void
|
|
sound_mem_init (void)
|
|
{
|
|
int i, dev;
|
|
unsigned long dma_pagesize;
|
|
static unsigned long dsp_init_mask = 0;
|
|
|
|
for (dev = 0; dev < num_dspdevs; dev++) /* Enumerate devices */
|
|
if (!(dsp_init_mask & (1 << dev))) /* Not already done */
|
|
if (sound_buffcounts[dev] > 0 && sound_dsp_dmachan[dev] > 0)
|
|
{
|
|
dsp_init_mask |= (1 << dev);
|
|
|
|
#if 1 /* 0 */
|
|
if (sound_dma_automode[dev])
|
|
{
|
|
sound_dma_automode[dev] = 0; /* Not possible with FreeBSD */
|
|
}
|
|
|
|
if (sound_buffcounts[dev] == 1)
|
|
{
|
|
sound_buffcounts[dev] = 2;
|
|
sound_buffsizes[dev] /= 2;
|
|
}
|
|
|
|
if (sound_buffsizes[dev] > 65536) /* Larger is not possible (yet) */
|
|
sound_buffsizes[dev] = 65536;
|
|
|
|
#if 0
|
|
if (sound_dsp_dmachan[dev] > 3 && sound_buffsizes[dev] > 65536)
|
|
dma_pagesize = 131072; /* 128k */
|
|
else
|
|
dma_pagesize = 65536;
|
|
#else
|
|
dma_pagesize = 4096; /* use bounce buffer */
|
|
#endif
|
|
|
|
|
|
/* More sanity checks */
|
|
|
|
if (sound_buffsizes[dev] > dma_pagesize)
|
|
sound_buffsizes[dev] = dma_pagesize;
|
|
sound_buffsizes[dev] &= ~0xfff; /* Truncate to n*4k */
|
|
if (sound_buffsizes[dev] < 4096)
|
|
sound_buffsizes[dev] = 4096;
|
|
#else
|
|
dma_pagesize = 4096;
|
|
sound_buffsizes[dev] = 4096;
|
|
sound_buffcounts[dev] = 16; /* -> 64k */
|
|
#endif
|
|
|
|
/* Now allocate the buffers */
|
|
|
|
for (snd_raw_count[dev] = 0; snd_raw_count[dev] < sound_buffcounts[dev]; snd_raw_count[dev]++)
|
|
{
|
|
/*
|
|
* The DMA buffer allocation algorithm hogs memory. We allocate
|
|
* a memory area which is two times the requires size. This
|
|
* guarantees that it contains at least one valid DMA buffer.
|
|
*
|
|
* This really needs some kind of finetuning.
|
|
*/
|
|
char *tmpbuf = malloc (2*sound_buffsizes[dev], M_DEVBUF, M_NOWAIT);
|
|
unsigned long addr, rounded;
|
|
|
|
if (tmpbuf == NULL)
|
|
{
|
|
printk ("snd: Unable to allocate %d bytes of buffer\n",
|
|
2 * sound_buffsizes[dev]);
|
|
return;
|
|
}
|
|
|
|
addr = kvtop (tmpbuf);
|
|
/*
|
|
* Align the start address
|
|
*/
|
|
rounded = (addr & ~(dma_pagesize - 1)) + dma_pagesize;
|
|
|
|
snd_raw_buf[dev][snd_raw_count[dev]] =
|
|
&tmpbuf[rounded - addr]; /* Compute offset */
|
|
/*
|
|
* Use virtual address as the physical address, since
|
|
* isa_dmastart performs the phys address computation.
|
|
*/
|
|
snd_raw_buf_phys[dev][snd_raw_count[dev]] =
|
|
(unsigned long) snd_raw_buf[dev][snd_raw_count[dev]];
|
|
}
|
|
} /* for dev */
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
struct isa_driver snddriver =
|
|
{sndprobe, sndattach, "snd"};
|
|
|
|
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, void(*hndlr)(int))
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
snd_release_irq(int vect)
|
|
{
|
|
}
|
|
|
|
#endif
|