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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>
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@ -2434,6 +2434,13 @@ static int snd_ice1712_chip_init(struct snd_ice1712 *ice)
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snd_ice1712_write(ice, ICE1712_IREG_CONSUMER_POWERDOWN, 0);
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}
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snd_ice1712_set_pro_rate(ice, 48000, 1);
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/* unmask used interrupts */
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outb(((ice->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_2xMPU401) == 0 ?
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ICE1712_IRQ_MPU2 : 0) |
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((ice->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_NO_CON_AC97) ?
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ICE1712_IRQ_PBKDS | ICE1712_IRQ_CONCAP | ICE1712_IRQ_CONPBK : 0),
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ICEREG(ice, IRQMASK));
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outb(0x00, ICEMT(ice, IRQ));
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return 0;
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}
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@ -2596,6 +2603,7 @@ static int snd_ice1712_create(struct snd_card *card,
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ice->pci = pci;
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ice->irq = -1;
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pci_set_master(pci);
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/* disable legacy emulation */
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pci_write_config_word(ice->pci, 0x40, 0x807f);
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pci_write_config_word(ice->pci, 0x42, 0x0006);
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snd_ice1712_proc_init(ice);
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@ -2632,14 +2640,6 @@ static int snd_ice1712_create(struct snd_card *card,
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return -EIO;
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}
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/* unmask used interrupts */
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outb(((ice->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_2xMPU401) == 0 ?
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ICE1712_IRQ_MPU2 : 0) |
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((ice->eeprom.data[ICE_EEP1_CODEC] & ICE1712_CFG_NO_CON_AC97) ?
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ICE1712_IRQ_PBKDS | ICE1712_IRQ_CONCAP | ICE1712_IRQ_CONPBK : 0),
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ICEREG(ice, IRQMASK));
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outb(0x00, ICEMT(ice, IRQ));
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err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, ice, &ops);
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if (err < 0) {
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snd_ice1712_free(ice);
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@ -2815,11 +2815,80 @@ static void snd_ice1712_remove(struct pci_dev *pci)
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snd_card_free(card);
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}
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#ifdef CONFIG_PM_SLEEP
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static int snd_ice1712_suspend(struct device *dev)
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{
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struct pci_dev *pci = to_pci_dev(dev);
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struct snd_card *card = dev_get_drvdata(dev);
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struct snd_ice1712 *ice = card->private_data;
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if (!ice->pm_suspend_enabled)
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return 0;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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snd_pcm_suspend_all(ice->pcm);
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snd_pcm_suspend_all(ice->pcm_pro);
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snd_pcm_suspend_all(ice->pcm_ds);
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snd_ac97_suspend(ice->ac97);
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if (ice->pm_suspend)
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ice->pm_suspend(ice);
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pci_disable_device(pci);
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pci_save_state(pci);
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pci_set_power_state(pci, PCI_D3hot);
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return 0;
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}
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static int snd_ice1712_resume(struct device *dev)
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{
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struct pci_dev *pci = to_pci_dev(dev);
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struct snd_card *card = dev_get_drvdata(dev);
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struct snd_ice1712 *ice = card->private_data;
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if (!ice->pm_suspend_enabled)
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return 0;
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pci_set_power_state(pci, PCI_D0);
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pci_restore_state(pci);
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if (pci_enable_device(pci) < 0) {
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snd_card_disconnect(card);
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return -EIO;
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}
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pci_set_master(pci);
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if (snd_ice1712_chip_init(ice) < 0) {
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snd_card_disconnect(card);
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return -EIO;
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}
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if (ice->pm_resume)
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ice->pm_resume(ice);
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if (ice->ac97)
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snd_ac97_resume(ice->ac97);
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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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static SIMPLE_DEV_PM_OPS(snd_ice1712_pm, snd_ice1712_suspend, snd_ice1712_resume);
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#define SND_VT1712_PM_OPS &snd_ice1712_pm
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#else
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#define SND_VT1712_PM_OPS NULL
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#endif /* CONFIG_PM_SLEEP */
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static struct pci_driver ice1712_driver = {
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.name = KBUILD_MODNAME,
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.id_table = snd_ice1712_ids,
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.probe = snd_ice1712_probe,
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.remove = snd_ice1712_remove,
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.driver = {
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.pm = SND_VT1712_PM_OPS,
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},
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};
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module_pci_driver(ice1712_driver);
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