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authorTakashi Iwai <tiwai@suse.de>2005-11-17 17:03:53 +0100
committerJaroslav Kysela <perex@suse.cz>2006-01-03 12:28:17 +0100
commit480615f33fa48e1a4db33e40b21d4009250f5b23 (patch)
treebd87766d2d32ae02722a65ab99ec0f36c884efb6
parent6bba41ac974ad77aa21d112a368ee565b55f303b (diff)
[ALSA] als100 - Add PM support
Modules: ALS100 driver Add PM support to als100 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/isa/als100.c51
1 files changed, 41 insertions, 10 deletions
diff --git a/sound/isa/als100.c b/sound/isa/als100.c
index 0d709bc50c16..9b77c17b3f66 100644
--- a/sound/isa/als100.c
+++ b/sound/isa/als100.c
@@ -83,6 +83,7 @@ struct snd_card_als100 {
struct pnp_dev *dev;
struct pnp_dev *devmpu;
struct pnp_dev *devopl;
+ struct snd_sb *chip;
};
static struct pnp_card_device_id snd_als100_pnpids[] = {
@@ -211,7 +212,7 @@ static int __init snd_card_als100_probe(int dev,
if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_card_als100))) == NULL)
return -ENOMEM;
- acard = (struct snd_card_als100 *)card->private_data;
+ acard = card->private_data;
if ((error = snd_card_als100_pnp(dev, acard, pcard, pid))) {
snd_card_free(card);
@@ -228,6 +229,7 @@ static int __init snd_card_als100_probe(int dev,
snd_card_free(card);
return error;
}
+ acard->chip = chip;
strcpy(card->driver, "ALS100");
strcpy(card->shortname, "Avance Logic ALS100");
@@ -299,11 +301,35 @@ static int __devinit snd_als100_pnp_detect(struct pnp_card_link *card,
static void __devexit snd_als100_pnp_remove(struct pnp_card_link * pcard)
{
- struct snd_card *card = (struct snd_card *) pnp_get_card_drvdata(pcard);
+ snd_card_free(pnp_get_card_drvdata(pcard));
+ pnp_set_card_drvdata(pcard, NULL);
+}
+
+#ifdef CONFIG_PM
+static int snd_als100_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
+{
+ struct snd_card *card = pnp_get_card_drvdata(pcard);
+ struct snd_card_als100 *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_als100_pnp_resume(struct pnp_card_link *pcard)
+{
+ struct snd_card *card = pnp_get_card_drvdata(pcard);
+ struct snd_card_als100 *acard = card->private_data;
+ struct snd_sb *chip = acard->chip;
- snd_card_disconnect(card);
- snd_card_free_in_thread(card);
+ 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 als100_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
@@ -311,20 +337,25 @@ static struct pnp_card_driver als100_pnpc_driver = {
.id_table = snd_als100_pnpids,
.probe = snd_als100_pnp_detect,
.remove = __devexit_p(snd_als100_pnp_remove),
+#ifdef CONFIG_PM
+ .suspend = snd_als100_pnp_suspend,
+ .resume = snd_als100_pnp_resume,
+#endif
};
static int __init alsa_card_als100_init(void)
{
- int cards = 0;
+ int cards;
- cards += pnp_register_card_driver(&als100_pnpc_driver);
-#ifdef MODULE
- if (!cards) {
+ cards = pnp_register_card_driver(&als100_pnpc_driver);
+ if (cards <= 0) {
pnp_unregister_card_driver(&als100_pnpc_driver);
+#ifdef MODULE
snd_printk(KERN_ERR "no ALS100 based soundcards found\n");
- }
#endif
- return cards ? 0 : -ENODEV;
+ return -ENODEV;
+ }
+ return 0;
}
static void __exit alsa_card_als100_exit(void)