[ALSA] als4000 - Add PM support
Modules: ALS4000 driver
Add PM support to PCI ALS4000 driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c
index 8d0d9c0..7b2ff5f 100644
--- a/sound/pci/als4000.c
+++ b/sound/pci/als4000.c
@@ -109,6 +109,7 @@
/* 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 @@
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 @@
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 @@
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 @@
&chip)) < 0) {
goto out_err;
}
+ acard->chip = chip;
chip->pci = pci;
chip->alt_port = gcr;
@@ -777,11 +791,59 @@
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)