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oss: poll mode handling

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Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
malc 2009-09-12 02:29:16 +04:00
parent 713a98f8f1
commit dd8a56494d
1 changed files with 74 additions and 5 deletions
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79
audio/ossaudio.c
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@ -31,6 +31,7 @@
#include <sys/soundcard.h>
#endif
#include "qemu-common.h"
#include "qemu-char.h"
#include "audio.h"
#define AUDIO_CAP "oss"
@ -114,9 +115,36 @@ static void oss_anal_close (int *fdp)
if (err) {
oss_logerr (errno, "Failed to close file(fd=%d)\n", *fdp);
}
qemu_set_fd_handler (*fdp, NULL, NULL, NULL);
*fdp = -1;
}
static void oss_helper_poll_out (void *opaque)
{
(void) opaque;
audio_run ("oss_poll_out");
}
static void oss_helper_poll_in (void *opaque)
{
(void) opaque;
audio_run ("oss_poll_in");
}
static int oss_poll_out (HWVoiceOut *hw)
{
OSSVoiceOut *oss = (OSSVoiceOut *) hw;
return qemu_set_fd_handler (oss->fd, NULL, oss_helper_poll_out, NULL);
}
static int oss_poll_in (HWVoiceIn *hw)
{
OSSVoiceIn *oss = (OSSVoiceIn *) hw;
return qemu_set_fd_handler (oss->fd, oss_helper_poll_in, NULL, NULL);
}
static int oss_write (SWVoiceOut *sw, void *buf, int len)
{
return audio_pcm_sw_write (sw, buf, len);
@ -547,15 +575,26 @@ static int oss_init_out (HWVoiceOut *hw, struct audsettings *as)
static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...)
{
int trig;
va_list ap;
int poll_mode;
OSSVoiceOut *oss = (OSSVoiceOut *) hw;
if (!oss->mmapped) {
return 0;
}
va_start (ap, cmd);
poll_mode = va_arg (ap, int);
va_end (ap);
switch (cmd) {
case VOICE_ENABLE:
ldebug ("enabling voice\n");
if (poll_mode && oss_poll_out (hw)) {
poll_mode = 0;
}
hw->poll_mode = poll_mode;
if (!oss->mmapped) {
return 0;
}
audio_pcm_info_clear_buf (&hw->info, oss->pcm_buf, hw->samples);
trig = PCM_ENABLE_OUTPUT;
if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
@ -568,6 +607,15 @@ static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...)
break;
case VOICE_DISABLE:
if (hw->poll_mode) {
qemu_set_fd_handler (oss->fd, NULL, NULL, NULL);
hw->poll_mode = 0;
}
if (!oss->mmapped) {
return 0;
}
ldebug ("disabling voice\n");
trig = 0;
if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
@ -723,8 +771,29 @@ static int oss_read (SWVoiceIn *sw, void *buf, int size)
static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...)
{
(void) hw;
(void) cmd;
va_list ap;
int poll_mode;
OSSVoiceIn *oss = (OSSVoiceIn *) hw;
va_start (ap, cmd);
poll_mode = va_arg (ap, int);
va_end (ap);
switch (cmd) {
case VOICE_ENABLE:
if (poll_mode && oss_poll_in (hw)) {
poll_mode = 0;
}
hw->poll_mode = poll_mode;
break;
case VOICE_DISABLE:
if (hw->poll_mode) {
hw->poll_mode = 0;
qemu_set_fd_handler (oss->fd, NULL, NULL, NULL);
}
break;
}
return 0;
}