[ALSA] dt019x - Add PM support
Modules: DT019x driver
Add PM support to dt019x driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/isa/dt019x.c b/sound/isa/dt019x.c
index 7559956..50e7bc5 100644
--- a/sound/isa/dt019x.c
+++ b/sound/isa/dt019x.c
@@ -74,6 +74,7 @@
struct pnp_dev *dev;
struct pnp_dev *devmpu;
struct pnp_dev *devopl;
+ struct snd_sb *chip;
};
static struct pnp_card_device_id snd_dt019x_pnpids[] = {
@@ -196,7 +197,7 @@
if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_card_dt019x))) == NULL)
return -ENOMEM;
- acard = (struct snd_card_dt019x *)card->private_data;
+ acard = card->private_data;
snd_card_set_dev(card, &pcard->card->dev);
if ((error = snd_card_dt019x_pnp(dev, acard, pcard, pid))) {
@@ -214,6 +215,7 @@
snd_card_free(card);
return error;
}
+ acard->chip = chip;
strcpy(card->driver, "DT-019X");
strcpy(card->shortname, "Diamond Tech. DT-019X");
@@ -290,32 +292,61 @@
static void __devexit snd_dt019x_pnp_remove(struct pnp_card_link * pcard)
{
- struct snd_card *card = (struct snd_card *) pnp_get_card_drvdata(pcard);
- snd_card_disconnect(card);
- snd_card_free_in_thread(card);
+ snd_card_free(pnp_get_card_drvdata(pcard));
+ pnp_set_card_drvdata(pcard, NULL);
}
+#ifdef CONFIG_PM
+static int snd_dt019x_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
+{
+ struct snd_card *card = pnp_get_card_drvdata(pcard);
+ struct snd_card_dt019x *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);
+ return 0;
+}
+
+static int snd_dt019x_pnp_resume(struct pnp_card_link *pcard)
+{
+ struct snd_card *card = pnp_get_card_drvdata(pcard);
+ struct snd_card_dt019x *acard = card->private_data;
+ struct snd_sb *chip = acard->chip;
+
+ snd_sbdsp_reset(chip);
+ snd_sbmixer_resume(chip);
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ return 0;
+}
+#endif
+
static struct pnp_card_driver dt019x_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
.name = "dt019x",
.id_table = snd_dt019x_pnpids,
.probe = snd_dt019x_pnp_probe,
.remove = __devexit_p(snd_dt019x_pnp_remove),
+#ifdef CONFIG_PM
+ .suspend = snd_dt019x_pnp_suspend,
+ .resume = snd_dt019x_pnp_resume,
+#endif
};
static int __init alsa_card_dt019x_init(void)
{
int cards = 0;
- cards += pnp_register_card_driver(&dt019x_pnpc_driver);
-
-#ifdef MODULE
- if (!cards) {
+ cards = pnp_register_card_driver(&dt019x_pnpc_driver);
+ if (cards <= 0) {
pnp_unregister_card_driver(&dt019x_pnpc_driver);
+#ifdef MODULE
snd_printk(KERN_ERR "no DT-019X / ALS-007 based soundcards found\n");
- }
#endif
- return cards ? 0 : -ENODEV;
+ return -ENODEV;
+ }
+ return 0;
}
static void __exit alsa_card_dt019x_exit(void)