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[ALSA] es968 - Add PM support 

Modules: ES968 driver

Add PM support to es968 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-11-17 16:56:11 +01:00 committed by Jaroslav Kysela
parent 67be445871
commit 7a8fef1f95
1 changed files with 40 additions and 9 deletions
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49
sound/isa/sb/es968.c
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@ -58,6 +58,7 @@ MODULE_PARM_DESC(dma8, "8-bit DMA # for es968 driver.");
struct snd_card_es968 {
struct pnp_dev *dev;
struct snd_sb *chip;
};
static struct pnp_card_device_id snd_es968_pnpids[] = {
@ -135,7 +136,7 @@ static int __init snd_card_es968_probe(int dev,
if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_card_es968))) == NULL)
return -ENOMEM;
acard = (struct snd_card_es968 *)card->private_data;
acard = card->private_data;
if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
snd_card_free(card);
return error;
@ -151,6 +152,7 @@ static int __init snd_card_es968_probe(int dev,
snd_card_free(card);
return error;
}
acard->chip = chip;
if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
snd_card_free(card);
@ -200,30 +202,59 @@ static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
static void __devexit snd_es968_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_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
{
struct snd_card *card = pnp_get_card_drvdata(pcard);
struct snd_card_es968 *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_es968_pnp_resume(struct pnp_card_link *pcard)
{
struct snd_card *card = pnp_get_card_drvdata(pcard);
struct snd_card_es968 *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 es968_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
.name = "es968",
.id_table = snd_es968_pnpids,
.probe = snd_es968_pnp_detect,
.remove = __devexit_p(snd_es968_pnp_remove),
#ifdef CONFIG_PM
.suspend = snd_es968_pnp_suspend,
.resume = snd_es968_pnp_resume,
#endif
};
static int __init alsa_card_es968_init(void)
{
int cards = pnp_register_card_driver(&es968_pnpc_driver);
#ifdef MODULE
if (cards == 0) {
if (cards <= 0) {
pnp_unregister_card_driver(&es968_pnpc_driver);
#ifdef MODULE
snd_printk(KERN_ERR "no ES968 based soundcards found\n");
}
#endif
return cards ? 0 : -ENODEV;
return -ENODEV;
}
return 0;
}
static void __exit alsa_card_es968_exit(void)