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| author | Takashi Iwai <tiwai@suse.de> | 2005-11-17 17:04:12 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-01-03 12:28:21 +0100 |
| commit | b6cc25cae365bada36c9f006e314b998eb2c5e7c (patch) | |
| tree | f3b3b2df9b698c3004308b342a7b3d65f7ca26fc /sound/isa | |
| parent | 480615f33fa48e1a4db33e40b21d4009250f5b23 (diff) | |
| download | lwn-b6cc25cae365bada36c9f006e314b998eb2c5e7c.tar.gz lwn-b6cc25cae365bada36c9f006e314b998eb2c5e7c.zip | |
[ALSA] azt2320 - Add PM support
Modules: AZT2320 driver
Add PM support to azt2320 driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/isa')
| -rw-r--r-- | sound/isa/azt2320.c | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/sound/isa/azt2320.c b/sound/isa/azt2320.c index db4e7334a67d..a530691bf4f7 100644 --- a/sound/isa/azt2320.c +++ b/sound/isa/azt2320.c @@ -93,6 +93,7 @@ struct snd_card_azt2320 { int dev_no; struct pnp_dev *dev; struct pnp_dev *devmpu; + struct snd_cs4231 *chip; }; static struct pnp_card_device_id snd_azt2320_pnpids[] = { @@ -329,11 +330,33 @@ static int __devinit snd_azt2320_pnp_detect(struct pnp_card_link *card, static void __devexit snd_azt2320_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_azt2320_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state) +{ + struct snd_card *card = pnp_get_card_drvdata(pcard); + struct snd_card_azt2320 *acard = card->private_data; + struct snd_cs4231 *chip = acard->chip; + + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); + chip->suspend(chip); + return 0; +} + +static int snd_azt2320_pnp_resume(struct pnp_card_link *pcard) +{ + struct snd_card *card = pnp_get_card_drvdata(pcard); + struct snd_card_azt2320 *acard = card->private_data; + struct snd_cs4231 *chip = acard->chip; - snd_card_disconnect(card); - snd_card_free_in_thread(card); + chip->resume(chip); + snd_power_change_state(card, SNDRV_CTL_POWER_D0); + return 0; } +#endif static struct pnp_card_driver azt2320_pnpc_driver = { .flags = PNP_DRIVER_RES_DISABLE, @@ -341,20 +364,25 @@ static struct pnp_card_driver azt2320_pnpc_driver = { .id_table = snd_azt2320_pnpids, .probe = snd_azt2320_pnp_detect, .remove = __devexit_p(snd_azt2320_pnp_remove), +#ifdef CONFIG_PM + .suspend = snd_azt2320_pnp_suspend, + .resume = snd_azt2320_pnp_resume, +#endif }; static int __init alsa_card_azt2320_init(void) { - int cards = 0; + int cards; - cards += pnp_register_card_driver(&azt2320_pnpc_driver); -#ifdef MODULE - if (!cards) { + cards = pnp_register_card_driver(&azt2320_pnpc_driver); + if (cards <= 0) { pnp_unregister_card_driver(&azt2320_pnpc_driver); +#ifdef MODULE snd_printk(KERN_ERR "no AZT2320 based soundcards found\n"); - } #endif - return cards ? 0 : -ENODEV; + return -ENODEV; + } + return 0; } static void __exit alsa_card_azt2320_exit(void) |