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[ALSA] als4000 - Add PM support

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Modules: ALS4000 driver

Add PM support to PCI ALS4000 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-11-17 16:16:36 +01:00 committed by Jaroslav Kysela
parent 5bdb6a1629
commit 703529140c
1 changed files with 69 additions and 7 deletions
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76
sound/pci/als4000.c
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@ -109,6 +109,7 @@ struct snd_card_als4000 {
/* most frequent access first */
unsigned long gcr;
struct pci_dev *pci;
struct snd_sb *chip;
#ifdef SUPPORT_JOYSTICK
struct gameport *gameport;
#endif
@ -305,14 +306,20 @@ static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int
int result = 0;
spin_lock(&chip->mixer_lock);
if (cmd == SNDRV_PCM_TRIGGER_START) {
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
chip->mode |= SB_RATE_LOCK_CAPTURE;
snd_sbmixer_write(chip, 0xde, capture_cmd(chip));
} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
chip->mode &= ~SB_RATE_LOCK_CAPTURE;
snd_sbmixer_write(chip, 0xde, 0);
} else {
break;
default:
result = -EINVAL;
break;
}
spin_unlock(&chip->mixer_lock);
return result;
@ -324,14 +331,20 @@ static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int
int result = 0;
spin_lock(&chip->reg_lock);
if (cmd == SNDRV_PCM_TRIGGER_START) {
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
chip->mode |= SB_RATE_LOCK_PLAYBACK;
snd_sbdsp_command(chip, playback_cmd(chip).dma_on);
} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
} else {
break;
default:
result = -EINVAL;
break;
}
spin_unlock(&chip->reg_lock);
return result;
@ -551,7 +564,7 @@ static void snd_als4000_set_addr(unsigned long gcr,
snd_als4000_gcr_write_addr(gcr, 0xa9, confB);
}
static void __devinit snd_als4000_configure(struct snd_sb *chip)
static void snd_als4000_configure(struct snd_sb *chip)
{
unsigned tmp;
int i;
@ -718,6 +731,7 @@ static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
&chip)) < 0) {
goto out_err;
}
acard->chip = chip;
chip->pci = pci;
chip->alt_port = gcr;
@ -777,11 +791,59 @@ static void __devexit snd_card_als4000_remove(struct pci_dev *pci)
pci_set_drvdata(pci, NULL);
}
#ifdef CONFIG_PM
static int snd_als4000_suspend(struct pci_dev *pci, pm_message_t state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct snd_card_als4000 *acard = card->private_data;
struct snd_sb *chip = acard->chip;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm);
snd_sbmixer_suspend(chip);
pci_set_power_state(pci, PCI_D3hot);
pci_disable_device(pci);
pci_save_state(pci);
return 0;
}
static int snd_als4000_resume(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct snd_card_als4000 *acard = card->private_data;
struct snd_sb *chip = acard->chip;
pci_restore_state(pci);
pci_enable_device(pci);
pci_set_power_state(pci, PCI_D0);
pci_set_master(pci);
snd_als4000_configure(chip);
snd_sbdsp_reset(chip);
snd_sbmixer_resume(chip);
#ifdef SUPPORT_JOYSTICK
if (acard->gameport)
snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1);
#endif
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif
static struct pci_driver driver = {
.name = "ALS4000",
.id_table = snd_als4000_ids,
.probe = snd_card_als4000_probe,
.remove = __devexit_p(snd_card_als4000_remove),
#ifdef CONFIG_PM
.suspend = snd_als4000_suspend,
.resume = snd_als4000_resume,
#endif
};
static int __init alsa_card_als4000_init(void)