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Added power management functions and defines.

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This commit is contained in:
Jaroslav Kysela 2001-09-26 13:57:04 +00:00
parent 23d8f9a0b0
commit 3c59c6b11d
19 changed files with 195 additions and 0 deletions
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28
src/control/control_shm.c
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@ -345,6 +345,32 @@ static int snd_ctl_shm_rawmidi_prefer_subdevice(snd_ctl_t *ctl, int subdev)
return err;
}
static int snd_ctl_shm_set_power_state(snd_ctl_t *ctl, unsigned int state)
{
snd_ctl_shm_t *shm = ctl->private_data;
volatile snd_ctl_shm_ctrl_t *ctrl = shm->ctrl;
int err;
ctrl->u.power_state = state;
ctrl->cmd = SNDRV_CTL_IOCTL_POWER;
err = snd_ctl_shm_action(ctl);
if (err < 0)
return err;
return err;
}
static int snd_ctl_shm_get_power_state(snd_ctl_t *ctl, unsigned int *state)
{
snd_ctl_shm_t *shm = ctl->private_data;
volatile snd_ctl_shm_ctrl_t *ctrl = shm->ctrl;
int err;
ctrl->cmd = SNDRV_CTL_IOCTL_POWER_STATE;
err = snd_ctl_shm_action(ctl);
if (err < 0)
return err;
*state = ctrl->u.power_state;
return err;
}
static int snd_ctl_shm_read(snd_ctl_t *ctl, snd_ctl_event_t *event)
{
snd_ctl_shm_t *shm;
@ -384,6 +410,8 @@ snd_ctl_ops_t snd_ctl_shm_ops = {
rawmidi_next_device: snd_ctl_shm_rawmidi_next_device,
rawmidi_info: snd_ctl_shm_rawmidi_info,
rawmidi_prefer_subdevice: snd_ctl_shm_rawmidi_prefer_subdevice,
set_power_state: snd_ctl_shm_set_power_state,
get_power_state: snd_ctl_shm_get_power_state,
read: snd_ctl_shm_read,
};