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Add suspend/resume support.

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MFC after:	1 week
This commit is contained in:
Mitsuru IWASAKI 2001-11-24 18:00:33 +00:00
parent 0987daa1f8
commit a02ab1042e
1 changed files with 67 additions and 4 deletions
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71
sys/dev/sound/pci/t4dwave.c
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@ -53,6 +53,7 @@ struct tr_chinfo {
u_int32_t eso, delta;
u_int32_t rvol, cvol;
u_int32_t gvsel, pan, vol, ctrl;
u_int32_t active:1, was_active:1;
int index, bufhalf;
struct snd_dbuf *buffer;
struct pcm_channel *channel;
@ -61,6 +62,7 @@ struct tr_chinfo {
struct tr_rchinfo {
u_int32_t delta;
u_int32_t active:1, was_active:1;
struct snd_dbuf *buffer;
struct pcm_channel *channel;
struct tr_info *parent;
@ -495,8 +497,11 @@ trpchan_trigger(kobj_t obj, void *data, int go)
tr_wrch(ch);
tr_enaint(ch, 1);
tr_startch(ch);
} else
ch->active = 1;
} else {
tr_stopch(ch);
ch->active = 0;
}
return 0;
}
@ -613,8 +618,11 @@ trrchan_trigger(kobj_t obj, void *data, int go)
tr_wr(tr, TR_REG_DMAR4, i | (sndbuf_runsz(ch->buffer) - 1), 4);
/* start */
tr_wr(tr, TR_REG_SBCTRL, tr_rd(tr, TR_REG_SBCTRL, 1) | 1, 1);
} else
ch->active = 1;
} else {
tr_wr(tr, TR_REG_SBCTRL, tr_rd(tr, TR_REG_SBCTRL, 1) & ~7, 1);
ch->active = 0;
}
/* return 0 if ok */
return 0;
@ -718,7 +726,6 @@ tr_init(struct tr_info *tr)
}
tr_wr(tr, TR_REG_CIR, TR_CIR_MIDENA | TR_CIR_ADDRENA, 4);
tr->playchns = 0;
return 0;
}
@ -782,6 +789,7 @@ tr_pci_attach(device_t dev)
device_printf(dev, "unable to initialize the card\n");
goto bad;
}
tr->playchns = 0;
codec = AC97_CREATE(dev, tr, tr_ac97);
if (codec == NULL) goto bad;
@ -848,12 +856,67 @@ tr_pci_detach(device_t dev)
return 0;
}
static int
tr_pci_suspend(device_t dev)
{
int i;
struct tr_info *tr;
tr = pcm_getdevinfo(dev);
for (i = 0; i < tr->playchns; i++) {
tr->chinfo[i].was_active = tr->chinfo[i].active;
if (tr->chinfo[i].active) {
trpchan_trigger(NULL, &tr->chinfo[i], PCMTRIG_STOP);
}
}
tr->recchinfo.was_active = tr->recchinfo.active;
if (tr->recchinfo.active) {
trrchan_trigger(NULL, &tr->recchinfo, PCMTRIG_STOP);
}
return 0;
}
static int
tr_pci_resume(device_t dev)
{
int i;
struct tr_info *tr;
tr = pcm_getdevinfo(dev);
if (tr_init(tr) == -1) {
device_printf(dev, "unable to initialize the card\n");
return ENXIO;
}
if (mixer_reinit(dev) == -1) {
device_printf(dev, "unable to initialize the mixer\n");
return ENXIO;
}
for (i = 0; i < tr->playchns; i++) {
if (tr->chinfo[i].was_active) {
trpchan_trigger(NULL, &tr->chinfo[i], PCMTRIG_START);
}
}
if (tr->recchinfo.was_active) {
trrchan_trigger(NULL, &tr->recchinfo, PCMTRIG_START);
}
return 0;
}
static device_method_t tr_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, tr_pci_probe),
DEVMETHOD(device_attach, tr_pci_attach),
DEVMETHOD(device_detach, tr_pci_detach),
DEVMETHOD(device_suspend, tr_pci_suspend),
DEVMETHOD(device_resume, tr_pci_resume),
{ 0, 0 }
};