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ALSA: snd-opti9xx: Implement suspend/resume 

Implement suspend/resume support for Opti 92x and 93x chips.
Tested with Opti 929A+AD1848 and Opti 931.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Ondrej Zary 2012-07-17 09:16:44 +02:00 committed by Takashi Iwai
parent b4e2a16f99
commit 5dd250728a
1 changed files with 63 additions and 4 deletions
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67
sound/isa/opti9xx/opti92x-ad1848.c
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@ -136,8 +136,8 @@ struct snd_opti9xx {
#ifdef OPTi93X
unsigned long mc_indir_index;
struct resource *res_mc_indir;
struct snd_wss *codec;
#endif /* OPTi93X */
struct snd_wss *codec;
unsigned long pwd_reg;
spinlock_t lock;
@ -870,9 +870,7 @@ static int __devinit snd_opti9xx_probe(struct snd_card *card)
&codec);
if (error < 0)
return error;
#ifdef OPTi93X
chip->codec = codec;
#endif
error = snd_wss_pcm(codec, 0, &pcm);
if (error < 0)
return error;
@ -1053,11 +1051,55 @@ static int __devexit snd_opti9xx_isa_remove(struct device *devptr,
return 0;
}
#ifdef CONFIG_PM
static int snd_opti9xx_suspend(struct snd_card *card)
{
struct snd_opti9xx *chip = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
chip->codec->suspend(chip->codec);
return 0;
}
static int snd_opti9xx_resume(struct snd_card *card)
{
struct snd_opti9xx *chip = card->private_data;
int error, xdma2;
#if defined(CS4231) || defined(OPTi93X)
xdma2 = dma2;
#else
xdma2 = -1;
#endif
error = snd_opti9xx_configure(chip, port, irq, dma1, xdma2,
mpu_port, mpu_irq);
if (error)
return error;
chip->codec->resume(chip->codec);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
static int snd_opti9xx_isa_suspend(struct device *dev, unsigned int n,
pm_message_t state)
{
return snd_opti9xx_suspend(dev_get_drvdata(dev));
}
static int snd_opti9xx_isa_resume(struct device *dev, unsigned int n)
{
return snd_opti9xx_resume(dev_get_drvdata(dev));
}
#endif
static struct isa_driver snd_opti9xx_driver = {
.match = snd_opti9xx_isa_match,
.probe = snd_opti9xx_isa_probe,
.remove = __devexit_p(snd_opti9xx_isa_remove),
/* FIXME: suspend/resume */
#ifdef CONFIG_PM
.suspend = snd_opti9xx_isa_suspend,
.resume = snd_opti9xx_isa_resume,
#endif
.driver = {
.name = DEV_NAME
},
@ -1123,12 +1165,29 @@ static void __devexit snd_opti9xx_pnp_remove(struct pnp_card_link * pcard)
snd_opti9xx_pnp_is_probed = 0;
}
#ifdef CONFIG_PM
static int snd_opti9xx_pnp_suspend(struct pnp_card_link *pcard,
pm_message_t state)
{
return snd_opti9xx_suspend(pnp_get_card_drvdata(pcard));
}
static int snd_opti9xx_pnp_resume(struct pnp_card_link *pcard)
{
return snd_opti9xx_resume(pnp_get_card_drvdata(pcard));
}
#endif
static struct pnp_card_driver opti9xx_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
.name = "opti9xx",
.id_table = snd_opti9xx_pnpids,
.probe = snd_opti9xx_pnp_probe,
.remove = __devexit_p(snd_opti9xx_pnp_remove),
#ifdef CONFIG_PM
.suspend = snd_opti9xx_pnp_suspend,
.resume = snd_opti9xx_pnp_resume,
#endif
};
#endif