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ALSA: ice1712: add suspend support for ICE1712 chip 

Add suspend/resume support for ICE1712 chip.
Card-specific subdrivers need to enable it and provide callbacks that suspend/resume the codecs.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Ondrej Zary 2014-03-30 23:37:30 +02:00 committed by Takashi Iwai
parent 9ddd84f872
commit ca051e8a67
1 changed files with 77 additions and 8 deletions
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85
sound/pci/ice1712/ice1712.c
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@ -2434,6 +2434,13 @@ static int snd_ice1712_chip_init(struct snd_ice1712 *ice)
snd_ice1712_write(ice, ICE1712_IREG_CONSUMER_POWERDOWN, 0);
}
snd_ice1712_set_pro_rate(ice, 48000, 1);
/* unmask used interrupts */
outb(((ice->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_2xMPU401) == 0 ?
ICE1712_IRQ_MPU2 : 0) |
((ice->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_NO_CON_AC97) ?
ICE1712_IRQ_PBKDS | ICE1712_IRQ_CONCAP | ICE1712_IRQ_CONPBK : 0),
ICEREG(ice, IRQMASK));
outb(0x00, ICEMT(ice, IRQ));
return 0;
}
@ -2596,6 +2603,7 @@ static int snd_ice1712_create(struct snd_card *card,
ice->pci = pci;
ice->irq = -1;
pci_set_master(pci);
/* disable legacy emulation */
pci_write_config_word(ice->pci, 0x40, 0x807f);
pci_write_config_word(ice->pci, 0x42, 0x0006);
snd_ice1712_proc_init(ice);
@ -2632,14 +2640,6 @@ static int snd_ice1712_create(struct snd_card *card,
return -EIO;
}
/* unmask used interrupts */
outb(((ice->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_2xMPU401) == 0 ?
ICE1712_IRQ_MPU2 : 0) |
((ice->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_NO_CON_AC97) ?
ICE1712_IRQ_PBKDS | ICE1712_IRQ_CONCAP | ICE1712_IRQ_CONPBK : 0),
ICEREG(ice, IRQMASK));
outb(0x00, ICEMT(ice, IRQ));
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, ice, &ops);
if (err < 0) {
snd_ice1712_free(ice);
@ -2815,11 +2815,80 @@ static void snd_ice1712_remove(struct pci_dev *pci)
snd_card_free(card);
}
#ifdef CONFIG_PM_SLEEP
static int snd_ice1712_suspend(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct snd_ice1712 *ice = card->private_data;
if (!ice->pm_suspend_enabled)
return 0;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(ice->pcm);
snd_pcm_suspend_all(ice->pcm_pro);
snd_pcm_suspend_all(ice->pcm_ds);
snd_ac97_suspend(ice->ac97);
if (ice->pm_suspend)
ice->pm_suspend(ice);
pci_disable_device(pci);
pci_save_state(pci);
pci_set_power_state(pci, PCI_D3hot);
return 0;
}
static int snd_ice1712_resume(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct snd_card *card = dev_get_drvdata(dev);
struct snd_ice1712 *ice = card->private_data;
if (!ice->pm_suspend_enabled)
return 0;
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
snd_card_disconnect(card);
return -EIO;
}
pci_set_master(pci);
if (snd_ice1712_chip_init(ice) < 0) {
snd_card_disconnect(card);
return -EIO;
}
if (ice->pm_resume)
ice->pm_resume(ice);
if (ice->ac97)
snd_ac97_resume(ice->ac97);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
static SIMPLE_DEV_PM_OPS(snd_ice1712_pm, snd_ice1712_suspend, snd_ice1712_resume);
#define SND_VT1712_PM_OPS &snd_ice1712_pm
#else
#define SND_VT1712_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
static struct pci_driver ice1712_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_ice1712_ids,
.probe = snd_ice1712_probe,
.remove = snd_ice1712_remove,
.driver = {
.pm = SND_VT1712_PM_OPS,
},
};
module_pci_driver(ice1712_driver);