609 lines
15 KiB
C
609 lines
15 KiB
C
/*
|
|
* sound/386bsd/soundcard.c
|
|
*
|
|
* Soundcard driver for 386BSD.
|
|
*
|
|
* 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 <i386/isa/sound/sound_config.h>
|
|
|
|
#if NSND > 0 /* from "snd.h" */
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_kern.h>
|
|
#include <vm/vm_param.h>
|
|
#include <vm/pmap.h>
|
|
#include <vm/vm_extern.h>
|
|
#include <sys/mman.h>
|
|
|
|
#include <i386/isa/sound/dev_table.h>
|
|
#include <i386/isa/isa_device.h>
|
|
#include <i386/isa/isa.h>
|
|
|
|
|
|
/*
|
|
** Register definitions for DMA controller 1 (channels 0..3):
|
|
*/
|
|
#define DMA1_CHN(c) (IO_DMA1 + 1*(2*(c))) /* addr reg for channel c */
|
|
#define DMA1_SMSK (IO_DMA1 + 1*10) /* single mask register */
|
|
#define DMA1_MODE (IO_DMA1 + 1*11) /* mode register */
|
|
#define DMA1_FFC (IO_DMA1 + 1*12) /* clear first/last FF */
|
|
|
|
/*
|
|
** Register definitions for DMA controller 2 (channels 4..7):
|
|
*/
|
|
#define DMA2_CHN(c) (IO_DMA2 + 2*(2*(c))) /* addr reg for channel c */
|
|
#define DMA2_SMSK (IO_DMA2 + 2*10) /* single mask register */
|
|
#define DMA2_MODE (IO_DMA2 + 2*11) /* mode register */
|
|
#define DMA2_FFC (IO_DMA2 + 2*12) /* clear first/last FF */
|
|
|
|
|
|
#define FIX_RETURN(ret) {if ((ret)<0) return -(ret); else return 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
|
|
MIDIbuf_poll (int dev, struct fileinfo *file, int events, select_table * wait);
|
|
|
|
int
|
|
audio_poll(int dev, struct fileinfo * file, int events, select_table * wait);
|
|
|
|
int
|
|
sequencer_poll (int dev, struct fileinfo *file, int events, select_table * wait);
|
|
|
|
void sndintr __P((int unit));
|
|
int sndprobe __P((struct isa_device *));
|
|
int sndattach __P((struct isa_device *));
|
|
int sndmmap __P((dev_t dev, int offset, int nprot ));
|
|
|
|
static d_open_t sndopen;
|
|
static d_close_t sndclose;
|
|
static d_ioctl_t sndioctl;
|
|
static d_read_t sndread;
|
|
static d_write_t sndwrite;
|
|
static d_poll_t sndpoll;
|
|
|
|
static char driver_name[] = "snd";
|
|
|
|
#define CDEV_MAJOR 30
|
|
static struct cdevsw snd_cdevsw = {
|
|
sndopen, sndclose, sndread, sndwrite,
|
|
sndioctl, nxstop, nxreset, nxdevtotty,
|
|
sndpoll, sndmmap, nxstrategy, driver_name,
|
|
NULL, -1,
|
|
};
|
|
|
|
|
|
|
|
|
|
static void sound_mem_init(void);
|
|
|
|
/*
|
|
* for each "device XXX" entry in the config file, we have
|
|
* a struct isa_driver which is linked into isa_devtab_null[]
|
|
*
|
|
* XXX It is a bit stupid to call the generic routine so many times and
|
|
* switch then to the specific one, but the alternative way would be
|
|
* to replicate some code in the probe/attach routines.
|
|
*/
|
|
|
|
struct isa_driver opldriver = {sndprobe, sndattach, "opl"};
|
|
struct isa_driver trixdriver = {sndprobe, sndattach, "trix"};
|
|
struct isa_driver trixsbdriver = {sndprobe, sndattach, "trixsb"};
|
|
struct isa_driver sbdriver = {sndprobe, sndattach, "sb"};
|
|
struct isa_driver sbxvidriver = {sndprobe, sndattach, "sbxvi"};
|
|
struct isa_driver sbmididriver = {sndprobe, sndattach, "sbmidi"};
|
|
struct isa_driver awedriver = {sndprobe, sndattach, "awe"};
|
|
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"};
|
|
struct isa_driver sscapedriver = {sndprobe, sndattach, "sscape"};
|
|
struct isa_driver sscape_mssdriver = {sndprobe, sndattach, "sscape_mss"};
|
|
|
|
short ipri_to_irq(u_short ipri);
|
|
|
|
u_long
|
|
get_time(void)
|
|
{
|
|
struct timeval timecopy;
|
|
int x;
|
|
|
|
x = splclock();
|
|
timecopy = time;
|
|
splx(x);
|
|
return timecopy.tv_usec / (1000000 / hz) +
|
|
(u_long) timecopy.tv_sec * hz;
|
|
}
|
|
|
|
int
|
|
sndmmap( dev_t dev, int offset, int nprot )
|
|
{
|
|
int unit;
|
|
struct dma_buffparms * dmap;
|
|
|
|
dev = minor(dev) >> 4;
|
|
if (dev > 0 ) return (-1);
|
|
|
|
dmap = audio_devs[dev]->dmap_out;
|
|
|
|
if (nprot & PROT_EXEC)
|
|
return( -1 );
|
|
dmap->mapping_flags |= DMA_MAP_MAPPED ;
|
|
return( i386_btop(vtophys(dmap->raw_buf) + offset) );
|
|
}
|
|
|
|
|
|
static int
|
|
sndread(dev_t dev, struct uio * buf, int flag)
|
|
{
|
|
int count = buf->uio_resid;
|
|
|
|
dev = minor(dev);
|
|
FIX_RETURN(sound_read_sw(dev, &files[dev], buf, count));
|
|
}
|
|
|
|
|
|
static int
|
|
sndwrite(dev_t dev, struct uio * buf, int flag)
|
|
{
|
|
int count = buf->uio_resid;
|
|
|
|
dev = minor(dev);
|
|
FIX_RETURN(sound_write_sw(dev, &files[dev], buf, count));
|
|
}
|
|
|
|
static int
|
|
sndopen(dev_t dev, int flags, int mode, struct proc * p)
|
|
{
|
|
int retval;
|
|
struct fileinfo tmp_file;
|
|
|
|
dev = minor(dev);
|
|
if (!soundcard_configured && dev) {
|
|
printf("SoundCard Error: soundcard system has not been configured\n");
|
|
return ENODEV ;
|
|
}
|
|
tmp_file.mode = 0;
|
|
|
|
if (flags & FREAD && flags & FWRITE)
|
|
tmp_file.mode = OPEN_READWRITE;
|
|
else if (flags & FREAD)
|
|
tmp_file.mode = OPEN_READ;
|
|
else if (flags & FWRITE)
|
|
tmp_file.mode = OPEN_WRITE;
|
|
|
|
selinfo[dev >> 4].si_pid = 0;
|
|
selinfo[dev >> 4].si_flags = 0;
|
|
if ((retval = sound_open_sw(dev, &tmp_file)) < 0)
|
|
FIX_RETURN(retval);
|
|
|
|
bcopy((char *) &tmp_file, (char *) &files[dev], sizeof(tmp_file));
|
|
|
|
FIX_RETURN(retval);
|
|
}
|
|
|
|
|
|
static int
|
|
sndclose(dev_t dev, int flags, int mode, struct proc * p)
|
|
{
|
|
dev = minor(dev);
|
|
sound_release_sw(dev, &files[dev]);
|
|
|
|
return 0 ;
|
|
}
|
|
|
|
static int
|
|
sndioctl(dev_t dev, int cmd, caddr_t arg, int mode, struct proc * p)
|
|
{
|
|
dev = minor(dev);
|
|
FIX_RETURN(sound_ioctl_sw(dev, &files[dev], cmd, arg));
|
|
}
|
|
|
|
int
|
|
sndpoll(dev_t dev, int events, struct proc * p)
|
|
{
|
|
dev = minor(dev);
|
|
dev = minor(dev);
|
|
|
|
/* printf ("snd_select(dev=%d, rw=%d, pid=%d)\n", dev, rw, p->p_pid); */
|
|
#ifdef ALLOW_POLL
|
|
switch (dev & 0x0f) {
|
|
#ifdef CONFIG_SEQUENCER
|
|
case SND_DEV_SEQ:
|
|
case SND_DEV_SEQ2:
|
|
return sequencer_poll(dev, &files[dev], events, p);
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_MIDI
|
|
case SND_DEV_MIDIN:
|
|
return MIDIbuf_poll(dev, &files[dev], events, p);
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_AUDIO
|
|
case SND_DEV_DSP:
|
|
case SND_DEV_DSP16:
|
|
case SND_DEV_AUDIO:
|
|
|
|
return audio_poll(dev, &files[dev], events, p);
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
#endif /* ALLOW_POLL */
|
|
DEB(printf("sound_ioctl(dev=%d, cmd=0x%x, arg=0x%x)\n", dev, cmd, arg));
|
|
|
|
return 0 ;
|
|
}
|
|
|
|
/* XXX this should become ffs(ipri), perhaps -1 lr 970705 */
|
|
short
|
|
ipri_to_irq(u_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 == &awedriver)
|
|
return(SNDCARD_AWE32);
|
|
else if (driver == &uartdriver)
|
|
return (SNDCARD_UART6850);
|
|
else if (driver == &gusdriver)
|
|
return (SNDCARD_GUS16);
|
|
else if (driver == &mssdriver)
|
|
return (SNDCARD_MSS);
|
|
else if (driver == &sscapedriver)
|
|
return(SNDCARD_SSCAPE);
|
|
else if (driver == &sscape_mssdriver)
|
|
return(SNDCARD_SSCAPE_MSS);
|
|
else if (driver == &trixdriver)
|
|
return (SNDCARD_TRXPRO);
|
|
else if (driver == &trixsbdriver)
|
|
return (SNDCARD_TRXPRO_SB);
|
|
else
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* very dirty: tmp_osp is allocated in sndprobe, and used at the next
|
|
* call in sndattach
|
|
*/
|
|
|
|
static sound_os_info *temp_osp;
|
|
|
|
/*
|
|
* sndprobe is called for each isa_device. From here, a voxware unit
|
|
* number is determined, and the appropriate probe routine is selected.
|
|
* The parameters from the config line are passed to the hw_config struct.
|
|
*/
|
|
|
|
int
|
|
sndprobe(struct isa_device * dev)
|
|
{
|
|
struct address_info hw_config;
|
|
int unit;
|
|
|
|
temp_osp = (sound_os_info *)malloc(sizeof(sound_os_info),
|
|
M_DEVBUF, M_NOWAIT);
|
|
if (!temp_osp)
|
|
panic("SOUND: Cannot allocate memory\n");
|
|
|
|
/*
|
|
* get config info from the kernel config. These may be overridden
|
|
* by the local autoconfiguration routines though (e.g. pnp stuff).
|
|
*/
|
|
|
|
hw_config.io_base = dev->id_iobase;
|
|
hw_config.irq = ipri_to_irq(dev->id_irq);
|
|
hw_config.dma = dev->id_drq;
|
|
|
|
/*
|
|
* misuse the flags field for read dma. Note that, to use 0 as
|
|
* read dma channel, one of the high bits should be set. lr970705 XXX
|
|
*/
|
|
|
|
if (dev->id_flags != 0)
|
|
hw_config.dma2 = dev->id_flags & 0x7;
|
|
else
|
|
hw_config.dma2 = -1;
|
|
|
|
hw_config.always_detect = 0;
|
|
hw_config.name = NULL;
|
|
hw_config.card_subtype = 0;
|
|
|
|
temp_osp->unit = dev->id_unit;
|
|
hw_config.osp = temp_osp;
|
|
unit = driver_to_voxunit(dev->id_driver);
|
|
|
|
if (sndtable_probe(unit, &hw_config)) {
|
|
dev->id_iobase = hw_config.io_base;
|
|
dev->id_irq = hw_config.irq == -1 ? 0 : (1 << hw_config.irq);
|
|
dev->id_drq = hw_config.dma;
|
|
|
|
if (hw_config.dma != hw_config.dma2 && ( hw_config.dma2 != -1))
|
|
dev->id_flags = hw_config.dma2 | 0x100; /* XXX lr */
|
|
else
|
|
dev->id_flags = 0;
|
|
return TRUE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sndattach(struct isa_device * dev)
|
|
{
|
|
int unit;
|
|
static int midi_initialized = 0;
|
|
static int seq_initialized = 0;
|
|
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;
|
|
|
|
/* misuse the flags field for read dma */
|
|
if (dev->id_flags != 0)
|
|
hw_config.dma2 = dev->id_flags & 0x7;
|
|
else
|
|
hw_config.dma2 = -1;
|
|
|
|
hw_config.card_subtype = 0;
|
|
hw_config.osp = temp_osp;
|
|
|
|
if (!unit)
|
|
return FALSE;
|
|
|
|
if (!(sndtable_init_card(unit, &hw_config))) { /* init card */
|
|
printf(" <Driver not configured>");
|
|
return FALSE;
|
|
}
|
|
/*
|
|
* Init the high level sound driver
|
|
*/
|
|
|
|
if (!(soundcards_installed = sndtable_get_cardcount())) {
|
|
DDB(printf("No drivers actually installed\n"));
|
|
return FALSE; /* No cards detected */
|
|
}
|
|
printf("\n");
|
|
|
|
#ifdef CONFIG_AUDIO
|
|
if (num_audiodevs) { /* Audio devices present */
|
|
DMAbuf_init();
|
|
sound_mem_init();
|
|
}
|
|
soundcard_configured = 1;
|
|
#endif
|
|
|
|
if (num_midis && !midi_initialized)
|
|
midi_initialized = 1;
|
|
|
|
if ((num_midis + num_synths) && !seq_initialized) {
|
|
seq_initialized = 1;
|
|
sequencer_init();
|
|
}
|
|
|
|
{
|
|
dev_t dev;
|
|
|
|
dev = makedev(CDEV_MAJOR, 0);
|
|
cdevsw_add(&dev, &snd_cdevsw, NULL);
|
|
}
|
|
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_AUDIO
|
|
|
|
static void
|
|
alloc_dmap(int dev, int chan, struct dma_buffparms * dmap)
|
|
{
|
|
char *tmpbuf;
|
|
int i;
|
|
|
|
tmpbuf = contigmalloc(audio_devs[dev]->buffsize, M_DEVBUF, M_NOWAIT,
|
|
0ul, 0xfffffful, 1ul, chan & 4 ? 0x20000ul : 0x10000ul);
|
|
if (tmpbuf == NULL)
|
|
printf("soundcard buffer alloc failed \n");
|
|
|
|
if (tmpbuf == NULL) {
|
|
printf("snd: Unable to allocate %d bytes of buffer\n",
|
|
2 * (int) audio_devs[dev]->buffsize);
|
|
return;
|
|
}
|
|
dmap->raw_buf = tmpbuf;
|
|
/*
|
|
* Use virtual address as the physical address, since isa_dmastart
|
|
* performs the phys address computation.
|
|
*/
|
|
|
|
dmap->raw_buf_phys = (u_long) tmpbuf;
|
|
for (i = 0; i < audio_devs[dev]->buffsize; i++) *tmpbuf++ = 0x80;
|
|
|
|
}
|
|
|
|
static void
|
|
sound_mem_init(void)
|
|
{
|
|
int dev;
|
|
static u_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]->dmachan1 >= 0) {
|
|
dsp_init_mask |= (1 << dev);
|
|
audio_devs[dev]->buffsize = DSP_BUFFSIZE;
|
|
/* Now allocate the buffers */
|
|
alloc_dmap(dev, audio_devs[dev]->dmachan1,
|
|
audio_devs[dev]->dmap_out);
|
|
if (audio_devs[dev]->flags & DMA_DUPLEX)
|
|
alloc_dmap(dev, audio_devs[dev]->dmachan2,
|
|
audio_devs[dev]->dmap_in);
|
|
} /* for dev */
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
int
|
|
snd_ioctl_return(int *addr, int value)
|
|
{
|
|
if (value < 0)
|
|
return value; /* Error */
|
|
suword(addr, value);
|
|
return 0;
|
|
}
|
|
|
|
#define MAX_UNIT 50
|
|
typedef void (*irq_proc_t) (int irq);
|
|
static irq_proc_t irq_proc[MAX_UNIT] = {NULL};
|
|
static int irq_irq[MAX_UNIT] = {0};
|
|
|
|
int
|
|
snd_set_irq_handler(int int_lvl, void (*hndlr) (int), sound_os_info * osp)
|
|
{
|
|
if (osp->unit >= MAX_UNIT) {
|
|
printf("Sound error: Unit number too high (%d)\n", osp->unit);
|
|
return 0;
|
|
}
|
|
irq_proc[osp->unit] = hndlr;
|
|
irq_irq[osp->unit] = int_lvl;
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
sndintr(int unit)
|
|
{
|
|
if ( (unit >= MAX_UNIT) || (irq_proc[unit] == NULL) )
|
|
return;
|
|
|
|
irq_proc[unit] (irq_irq[unit]); /* Call the installed handler */
|
|
}
|
|
|
|
void
|
|
conf_printf(char *name, struct address_info * hw_config)
|
|
{
|
|
if (!trace_init)
|
|
return;
|
|
|
|
printf("snd0: <%s> ", name);
|
|
#if 0
|
|
if (hw_config->io_base != -1 )
|
|
printf("at 0x%03x", hw_config->io_base);
|
|
|
|
if (hw_config->irq != -1 )
|
|
printf(" irq %d", hw_config->irq);
|
|
|
|
if (hw_config->dma != -1 || hw_config->dma2 != -1) {
|
|
printf(" dma %d", hw_config->dma);
|
|
if (hw_config->dma2 != -1)
|
|
printf(",%d", hw_config->dma2);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
void
|
|
conf_printf2(char *name, int base, int irq, int dma, int dma2)
|
|
{
|
|
if (!trace_init)
|
|
return;
|
|
|
|
printf("snd0: <%s> ", name);
|
|
#if 0
|
|
if (hw_config->io_base != -1 )
|
|
printf("at 0x%03x", hw_config->io_base);
|
|
|
|
if (irq)
|
|
printf(" irq %d", irq);
|
|
|
|
if (dma != -1 || dma2 != -1) {
|
|
printf(" dma %d", dma);
|
|
if (dma2 != -1)
|
|
printf(",%d", dma2);
|
|
}
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
void tenmicrosec (int j)
|
|
{
|
|
int i, k;
|
|
for (k = 0; k < j/10 ; k++) {
|
|
for (i = 0; i < 16; i++)
|
|
inb (0x80);
|
|
}
|
|
}
|
|
|
|
#endif /* NSND > 0 */
|
|
|
|
|
|
|
|
|