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| author | Takashi Iwai <tiwai@suse.de> | 2005-11-17 19:03:53 +0300 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-01-03 14:28:17 +0300 |
| commit | 480615f33fa48e1a4db33e40b21d4009250f5b23 (patch) | |
| tree | bd87766d2d32ae02722a65ab99ec0f36c884efb6 /sound/isa/als100.c | |
| parent | 6bba41ac974ad77aa21d112a368ee565b55f303b (diff) | |
| download | linux-480615f33fa48e1a4db33e40b21d4009250f5b23.tar.xz | |
[ALSA] als100 - Add PM support
Modules: ALS100 driver
Add PM support to als100 driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/isa/als100.c')
| -rw-r--r-- | sound/isa/als100.c | 51 |
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) |