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Update select -> poll.

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I am not particularly happy with this stuff, I have no way to test it.
This commit is contained in:
Peter Wemm 1997-09-14 03:12:54 +00:00
parent f8f6cbba92
commit ea8ef05f7e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=29367
7 changed files with 94 additions and 158 deletions
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42
sys/i386/isa/sound/audio.c
View file

@ -491,43 +491,37 @@ audio_init (long mem_start)
#ifdef ALLOW_SELECT
int
audio_select (int dev, struct fileinfo *file, int sel_type, select_table * wait)
audio_poll (int dev, struct fileinfo *file, int events, select_table * wait)
{
int l;
char *dmabuf;
int revents = 0;
dev = dev >> 4;
switch (sel_type)
{
case SEL_IN:
if (audio_mode[dev] != AM_READ && /* Wrong direction */
audio_mode[dev] != AM_NONE)
return 0;
if (events & (POLLIN | POLLRDNORM)) {
if (audio_mode[dev] == AM_READ || /* Right direction */
audio_mode[dev] == AM_NONE)
if (DMAbuf_getrdbuffer (dev, &dmabuf, &l,
1 /* Don't block */ ) >= 0)
return 1; /* We have data */
if (DMAbuf_getrdbuffer (dev, &dmabuf, &l, 1 /* Don't block */ ) >= 0)
revents |= events & (POLLIN | POLLRDNORM); /* We have data */
else
revents |= DMAbuf_poll (dev, file, events, wait);
return DMAbuf_select (dev, file, sel_type, wait);
break;
}
case SEL_OUT:
if (audio_mode[dev] != AM_WRITE && /* Wrong direction */
audio_mode[dev] != AM_NONE)
return 0;
if (events & (POLLOUT | POLLWRNORM)) {
if (audio_mode[dev] == AM_WRITE || /* Right direction */
audio_mode[dev] == AM_NONE)
if (wr_buff_no[dev] != -1)
return 1; /* There is space in the current buffer */
revents |= events & (POLLOUT | POLLWRNORM); /* There is space in the current buffer */
else
revents |= DMAbuf_poll (dev, file, events, wait);
return DMAbuf_select (dev, file, sel_type, wait);
break;
}
case SEL_EX:
return 0;
}
return 0;
return (revents);
}
#endif /* ALLOW_SELECT */

72
sys/i386/isa/sound/dmabuf.c
View file

@ -1000,61 +1000,43 @@ DMAbuf_reset_dma (int dev)
#ifdef ALLOW_SELECT
int
DMAbuf_select (int dev, struct fileinfo *file, int sel_type, select_table * wait)
DMAbuf_poll (int dev, struct fileinfo *file, int events, select_table * wait)
{
struct dma_buffparms *dmap = audio_devs[dev]->dmap;
unsigned long flags;
int revents = 0;
switch (sel_type)
{
case SEL_IN:
if (dmap->dma_mode != DMODE_INPUT)
return 0;
if (events & (POLLIN | POLLRDNORM))
if (dmap->dma_mode == DMODE_INPUT) {
DISABLE_INTR (flags);
if (!dmap->qlen)
{
#if defined(__FreeBSD__)
selrecord(wait, &selinfo[dev]);
#else
dev_sleep_flag[dev].mode = WK_SLEEP;
select_wait (&dev_sleeper[dev], wait);
#endif
RESTORE_INTR (flags);
return 0;
}
selrecord(wait, &selinfo[dev]);
else
revents |= events & (POLLIN | POLLRDNORM);
RESTORE_INTR (flags);
return 1;
break;
case SEL_OUT:
if (dmap->dma_mode == DMODE_INPUT)
return 0;
if (dmap->dma_mode == DMODE_NONE)
return 1;
DISABLE_INTR (flags);
if (!space_in_queue (dev))
{
#if defined(__FreeBSD__)
selrecord(wait, &selinfo[dev]);
#else
dev_sleep_flag[dev].mode = WK_SLEEP;
select_wait (&dev_sleeper[dev], wait);
#endif
RESTORE_INTR (flags);
return 0;
}
RESTORE_INTR (flags);
return 1;
break;
case SEL_EX:
return 0;
}
return 0;
if (events & (POLLOUT | POLLWRNORM))
if (dmap->dma_mode != DMODE_INPUT) {
if (dmap->dma_mode == DMODE_NONE)
revents |= events & (POLLOUT | POLLWRNORM);
else {
DISABLE_INTR (flags);
if (!space_in_queue (dev))
selrecord(wait, &selinfo[dev]);
else
revents |= events & (POLLOUT | POLLWRNORM);
RESTORE_INTR (flags);
}
}
return (revents);
}
#endif /* ALLOW_SELECT */

48
sys/i386/isa/sound/midibuf.c
View file

@ -418,45 +418,25 @@ MIDIbuf_ioctl (int dev, struct fileinfo *file,
#ifdef ALLOW_SELECT
int
MIDIbuf_select (int dev, struct fileinfo *file, int sel_type, select_table * wait)
MIDIbuf_poll (int dev, struct fileinfo *file, int events, select_table * wait)
{
int revents = 0;
dev = dev >> 4;
switch (sel_type)
{
case SEL_IN:
if (!DATA_AVAIL (midi_in_buf[dev]))
{
#if defined(__FreeBSD__)
selrecord(wait, &selinfo[dev]);
#else
input_sleep_flag[dev].mode = WK_SLEEP;
select_wait (&input_sleeper[dev], wait);
#endif
return 0;
}
return 1;
break;
if (events & (POLLIN | POLLRDNORM))
if (!DATA_AVAIL (midi_in_buf[dev]))
selrecord(wait, &selinfo[dev]);
else
revents |= events & (POLLIN | POLLRDNORM);
case SEL_OUT:
if (SPACE_AVAIL (midi_out_buf[dev]))
{
#if defined(__FreeBSD__)
selrecord(wait, &selinfo[dev]);
#else
midi_sleep_flag[dev].mode = WK_SLEEP;
select_wait (&midi_sleeper[dev], wait);
#endif
return 0;
}
return 1;
break;
if (events & (POLLOUT | POLLWRNORM))
if (SPACE_AVAIL (midi_out_buf[dev]))
selrecord(wait, &selinfo[dev]);
else
revents |= events & (POLLOUT | POLLWRNORM);
case SEL_EX:
return 0;
}
return 0;
return revents;
}
#endif /* ALLOW_SELECT */

1
sys/i386/isa/sound/os.h
View file

@ -27,6 +27,7 @@
#include <sys/filio.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/poll.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <sys/signalvar.h>

65
sys/i386/isa/sound/sequencer.c
View file

@ -1770,55 +1770,34 @@ sequencer_ioctl (int dev, struct fileinfo *file,
#ifdef ALLOW_SELECT
int
sequencer_select (int dev, struct fileinfo *file, int sel_type, select_table * wait)
sequencer_poll (int dev, struct fileinfo *file, int events, select_table * wait)
{
unsigned long flags;
int revents = 0;
dev = dev >> 4;
switch (sel_type)
{
case SEL_IN:
DISABLE_INTR (flags);
if (!iqlen)
{
#if defined(__FreeBSD__)
selrecord(wait, &selinfo[dev]);
#else
midi_sleep_flag.mode = WK_SLEEP;
select_wait (&midi_sleeper, wait);
#endif
RESTORE_INTR (flags);
return 0;
}
DISABLE_INTR (flags);
if (events & (POLLIN | POLLRDNORM))
if (!iqlen)
selrecord(wait, &selinfo[dev]);
else {
revents |= events & (POLLIN | POLLRDNORM);
midi_sleep_flag.mode &= ~WK_SLEEP;
RESTORE_INTR (flags);
return 1;
break;
case SEL_OUT:
DISABLE_INTR (flags);
if (qlen >= SEQ_MAX_QUEUE)
{
#if defined(__FreeBSD__)
selrecord(wait, &selinfo[dev]);
#else
seq_sleep_flag.mode = WK_SLEEP;
select_wait (&seq_sleeper, wait);
#endif
RESTORE_INTR (flags);
return 0;
}
seq_sleep_flag.mode &= ~WK_SLEEP;
RESTORE_INTR (flags);
return 1;
break;
case SEL_EX:
return 0;
}
return 0;
if (events & (POLLOUT | POLLWRNORM))
if (qlen >= SEQ_MAX_QUEUE)
selrecord(wait, &selinfo[dev]);
else {
revents |= events & (POLLOUT | POLLWRNORM);
seq_sleep_flag.mode &= ~WK_SLEEP;
}
RESTORE_INTR (flags);
return (revents);
}
#endif
@ -1976,9 +1955,9 @@ sequencer_init (long mem_start)
#ifdef ALLOW_SELECT
int
sequencer_select (int dev, struct fileinfo *file, int sel_type, select_table * wait)
sequencer_poll (int dev, struct fileinfo *file, int events, select_table * wait)
{
return RET_ERROR (EIO);
return (events & (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLHUP);
}
#endif

8
sys/i386/isa/sound/sound_calls.h
View file

@ -17,7 +17,7 @@ void DMAbuf_reset_dma (int dev);
void DMAbuf_inputintr(int dev);
void DMAbuf_outputintr(int dev, int underflow_flag);
#ifdef ALLOW_SELECT
int DMAbuf_select(int dev, struct fileinfo *file, int sel_type, select_table * wait);
int DMAbuf_poll(int dev, struct fileinfo *file, int events, select_table * wait);
#endif
/*
@ -34,7 +34,7 @@ int audio_lseek (int dev, struct fileinfo *file, off_t offset, int orig);
long audio_init (long mem_start);
#ifdef ALLOW_SELECT
int audio_select(int dev, struct fileinfo *file, int sel_type, select_table * wait);
int audio_poll(int dev, struct fileinfo *file, int events, select_table * wait);
#endif
/*
@ -56,7 +56,7 @@ void seq_input_event(unsigned char *event, int len);
void seq_copy_to_input (unsigned char *event, int len);
#ifdef ALLOW_SELECT
int sequencer_select(int dev, struct fileinfo *file, int sel_type, select_table * wait);
int sequencer_poll(int dev, struct fileinfo *file, int events, select_table * wait);
#endif
/*
@ -74,7 +74,7 @@ void MIDIbuf_bytes_received(int dev, unsigned char *buf, int count);
long MIDIbuf_init(long mem_start);
#ifdef ALLOW_SELECT
int MIDIbuf_select(int dev, struct fileinfo *file, int sel_type, select_table * wait);
int MIDIbuf_poll(int dev, struct fileinfo *file, int events, select_table * wait);
#endif
/*

16
sys/i386/isa/sound/soundcard.c
View file

@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: soundcard.c,v 1.51 1997/06/08 12:55:26 ache Exp $
* $Id: soundcard.c,v 1.52 1997/07/20 11:58:40 bde Exp $
*/
#include <i386/isa/sound/sound_config.h>
@ -69,13 +69,13 @@ static d_close_t sndclose;
static d_read_t sndread;
static d_write_t sndwrite;
static d_ioctl_t sndioctl;
static d_select_t sndselect;
static d_poll_t sndpoll;
#define CDEV_MAJOR 30
static struct cdevsw snd_cdevsw =
{ sndopen, sndclose, sndread, sndwrite, /*30*/
sndioctl, nostop, nullreset, nodevtotty,/* sound */
sndselect, nommap, NULL, "snd", NULL, -1 };
sndpoll, nommap, NULL, "snd", NULL, -1 };
struct isa_driver opldriver = {sndprobe, sndattach, "opl"};
struct isa_driver sbdriver = {sndprobe, sndattach, "sb"};
@ -197,24 +197,24 @@ sndioctl (dev_t dev, int cmd, caddr_t arg, int flags, struct proc *p)
}
static int
sndselect (dev_t dev, int rw, struct proc *p)
sndpoll (dev_t dev, int events, struct proc *p)
{
dev = minor (dev);
DEB (printk ("snd_select(dev=%d, rw=%d, pid=%d)\n", dev, rw, p->p_pid));
DEB (printk ("snd_poll(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);
return sequencer_poll (dev, &files[dev], events, p);
break;
#endif
#ifndef EXCLUDE_MIDI
case SND_DEV_MIDIN:
return MIDIbuf_select (dev, &files[dev], rw, p);
return MIDIbuf_poll (dev, &files[dev], events, p);
break;
#endif
@ -222,7 +222,7 @@ sndselect (dev_t dev, int rw, struct proc *p)
case SND_DEV_DSP:
case SND_DEV_DSP16:
case SND_DEV_AUDIO:
return audio_select (dev, &files[dev], rw, p);
return audio_poll (dev, &files[dev], events, p);
break;
#endif