diff options
| author | Takashi Iwai <tiwai@suse.de> | 2005-11-17 16:56:11 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-01-03 12:28:08 +0100 |
| commit | 7a8fef1f95e563a93c7d70048b63c1ca20685a1b (patch) | |
| tree | 34fa516e4d6775d50fefbab9bfe1bda8d6deb57b /sound/isa | |
| parent | 67be445871bb35c450100753b72392ad6ddc0245 (diff) | |
[ALSA] es968 - Add PM support
Modules: ES968 driver
Add PM support to es968 driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/isa')
| -rw-r--r-- | sound/isa/sb/es968.c | 47 |
1 files changed, 39 insertions, 8 deletions
diff --git a/sound/isa/sb/es968.c b/sound/isa/sb/es968.c index f7d1afe83dfe..9da80bfa3027 100644 --- a/sound/isa/sb/es968.c +++ b/sound/isa/sb/es968.c @@ -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); @@ -200,11 +202,35 @@ 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_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_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 es968_pnpc_driver = { .flags = PNP_DRIVER_RES_DISABLE, @@ -212,18 +238,23 @@ static struct pnp_card_driver es968_pnpc_driver = { .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) |