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>
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index 0710ec7..291672f 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2434,6 +2434,13 @@
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 @@
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 @@
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 @@
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);