From ca051e8a678b22f507a9e10fa536e1d9337d8b0d Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Sun, 30 Mar 2014 23:37:30 +0200 Subject: [PATCH] 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 Signed-off-by: Takashi Iwai --- sound/pci/ice1712/ice1712.c | 85 +++++++++++++++++++++++++++++++++---- 1 file changed, 77 insertions(+), 8 deletions(-) diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c index 0710ec7e69d3..291672fc4a99 100644 --- a/sound/pci/ice1712/ice1712.c +++ b/sound/pci/ice1712/ice1712.c @@ -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); -- 2.30.2