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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:
parent
67be445871
commit
7a8fef1f95
1 changed files with 40 additions and 9 deletions
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@ -58,6 +58,7 @@ MODULE_PARM_DESC(dma8, "8-bit DMA # for es968 driver.");
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struct snd_card_es968 {
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struct pnp_dev *dev;
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struct snd_sb *chip;
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};
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static struct pnp_card_device_id snd_es968_pnpids[] = {
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@ -135,7 +136,7 @@ static int __init snd_card_es968_probe(int dev,
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if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_es968))) == NULL)
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return -ENOMEM;
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acard = (struct snd_card_es968 *)card->private_data;
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acard = card->private_data;
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if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
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snd_card_free(card);
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return error;
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@ -151,6 +152,7 @@ static int __init snd_card_es968_probe(int dev,
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snd_card_free(card);
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return error;
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}
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acard->chip = chip;
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if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
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snd_card_free(card);
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@ -200,30 +202,59 @@ static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
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static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
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{
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struct snd_card *card = (struct snd_card *) pnp_get_card_drvdata(pcard);
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snd_card_disconnect(card);
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snd_card_free_in_thread(card);
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snd_card_free(pnp_get_card_drvdata(pcard));
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pnp_set_card_drvdata(pcard, NULL);
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}
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#ifdef CONFIG_PM
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static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
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{
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struct snd_card *card = pnp_get_card_drvdata(pcard);
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struct snd_card_es968 *acard = card->private_data;
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struct snd_sb *chip = acard->chip;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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snd_pcm_suspend_all(chip->pcm);
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snd_sbmixer_suspend(chip);
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return 0;
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}
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static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
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{
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struct snd_card *card = pnp_get_card_drvdata(pcard);
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struct snd_card_es968 *acard = card->private_data;
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struct snd_sb *chip = acard->chip;
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snd_sbdsp_reset(chip);
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snd_sbmixer_resume(chip);
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snd_power_change_state(card, SNDRV_CTL_POWER_D0);
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return 0;
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}
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#endif
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static struct pnp_card_driver es968_pnpc_driver = {
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.flags = PNP_DRIVER_RES_DISABLE,
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.name = "es968",
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.id_table = snd_es968_pnpids,
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.probe = snd_es968_pnp_detect,
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.remove = __devexit_p(snd_es968_pnp_remove),
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#ifdef CONFIG_PM
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.suspend = snd_es968_pnp_suspend,
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.resume = snd_es968_pnp_resume,
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#endif
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};
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static int __init alsa_card_es968_init(void)
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{
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int cards = pnp_register_card_driver(&es968_pnpc_driver);
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#ifdef MODULE
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if (cards == 0) {
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if (cards <= 0) {
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pnp_unregister_card_driver(&es968_pnpc_driver);
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#ifdef MODULE
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snd_printk(KERN_ERR "no ES968 based soundcards found\n");
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}
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#endif
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return cards ? 0 : -ENODEV;
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return -ENODEV;
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}
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return 0;
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}
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static void __exit alsa_card_es968_exit(void)
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