/*
* audio1575_resume()
*
* Description:
* Resume operation of the device after sleeping or hibernating.
* Note that this should never fail, even if hardware goes wonky,
* because the current PM framework will panic if it does.
*
* Arguments:
* dev_info_t *dip Pointer to the device's dev_info struct
*
* Returns:
* DDI_SUCCESS The driver was resumed
*/
static int
audio1575_resume(dev_info_t *dip)
{
audio1575_state_t *statep;
audio_dev_t *adev;
/* we've already allocated the state structure so get ptr */
statep = ddi_get_driver_private(dip);
adev = statep->adev;
ASSERT(!mutex_owned(&statep->lock));
if (audio1575_chip_init(statep) != DDI_SUCCESS) {
/*
* Note that PM gurus say we should return
* success here. Failure of audio shouldn't
* be considered FATAL to the system. The
* upshot is that audio will not progress.
*/
audio_dev_warn(adev, "DDI_RESUME failed to init chip");
return (DDI_SUCCESS);
}
/* allow ac97 operations again */
ac97_reset(statep->ac97);
audio_dev_resume(adev);
return (DDI_SUCCESS);
}
/* Perform a full reset on the hardware; this is invoked when an APM
resume event occurs. */
static void
nm256_full_reset (struct nm256_info *card)
{
nm256_initHw (card);
ac97_reset (&(card->mdev));
}
