Merge branch 'topic/ice1724-pm' into for-linus

[pandora-kernel.git] / sound / pci / ice1712 / ice1724.c

diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index cc84a83..af6e001 100644 (file)
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -560,6 +560,7 @@ static int snd_vt1724_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 
        case SNDRV_PCM_TRIGGER_START:
        case SNDRV_PCM_TRIGGER_STOP:
+       case SNDRV_PCM_TRIGGER_SUSPEND:
                spin_lock(&ice->reg_lock);
                old = inb(ICEMT1724(ice, DMA_CONTROL));
                if (cmd == SNDRV_PCM_TRIGGER_START)
@@ -570,6 +571,10 @@ static int snd_vt1724_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
                spin_unlock(&ice->reg_lock);
                break;
 
+       case SNDRV_PCM_TRIGGER_RESUME:
+               /* apps will have to restart stream */
+               break;
+
        default:
                return -EINVAL;
        }
@@ -2262,7 +2267,7 @@ static int __devinit snd_vt1724_read_eeprom(struct snd_ice1712 *ice,
 
 
 
-static void __devinit snd_vt1724_chip_reset(struct snd_ice1712 *ice)
+static void snd_vt1724_chip_reset(struct snd_ice1712 *ice)
 {
        outb(VT1724_RESET , ICEREG1724(ice, CONTROL));
        inb(ICEREG1724(ice, CONTROL)); /* pci posting flush */
@@ -2272,7 +2277,7 @@ static void __devinit snd_vt1724_chip_reset(struct snd_ice1712 *ice)
        msleep(10);
 }
 
-static int __devinit snd_vt1724_chip_init(struct snd_ice1712 *ice)
+static int snd_vt1724_chip_init(struct snd_ice1712 *ice)
 {
        outb(ice->eeprom.data[ICE_EEP2_SYSCONF], ICEREG1724(ice, SYS_CFG));
        outb(ice->eeprom.data[ICE_EEP2_ACLINK], ICEREG1724(ice, AC97_CFG));
@@ -2287,6 +2292,14 @@ static int __devinit snd_vt1724_chip_init(struct snd_ice1712 *ice)
 
        outb(0, ICEREG1724(ice, POWERDOWN));
 
+       /* MPU_RX and TX irq masks are cleared later dynamically */
+       outb(VT1724_IRQ_MPU_RX | VT1724_IRQ_MPU_TX , ICEREG1724(ice, IRQMASK));
+
+       /* don't handle FIFO overrun/underruns (just yet),
+        * since they cause machine lockups
+        */
+       outb(VT1724_MULTI_FIFO_ERR, ICEMT1724(ice, DMA_INT_MASK));
+
        return 0;
 }
 
@@ -2431,6 +2444,8 @@ static int __devinit snd_vt1724_create(struct snd_card *card,
        snd_vt1724_proc_init(ice);
        synchronize_irq(pci->irq);
 
+       card->private_data = ice;
+
        err = pci_request_regions(pci, "ICE1724");
        if (err < 0) {
                kfree(ice);
@@ -2459,14 +2474,6 @@ static int __devinit snd_vt1724_create(struct snd_card *card,
                return -EIO;
        }
 
-       /* MPU_RX and TX irq masks are cleared later dynamically */
-       outb(VT1724_IRQ_MPU_RX | VT1724_IRQ_MPU_TX , ICEREG1724(ice, IRQMASK));
-
-       /* don't handle FIFO overrun/underruns (just yet),
-        * since they cause machine lockups
-        */
-       outb(VT1724_MULTI_FIFO_ERR, ICEMT1724(ice, DMA_INT_MASK));
-
        err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, ice, &ops);
        if (err < 0) {
                snd_vt1724_free(ice);
@@ -2650,11 +2657,96 @@ static void __devexit snd_vt1724_remove(struct pci_dev *pci)
        pci_set_drvdata(pci, NULL);
 }
 
+#ifdef CONFIG_PM
+static int snd_vt1724_suspend(struct pci_dev *pci, pm_message_t state)
+{
+       struct snd_card *card = pci_get_drvdata(pci);
+       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);
+
+       spin_lock_irq(&ice->reg_lock);
+       ice->pm_saved_is_spdif_master = ice->is_spdif_master(ice);
+       ice->pm_saved_spdif_ctrl = inw(ICEMT1724(ice, SPDIF_CTRL));
+       ice->pm_saved_spdif_cfg = inb(ICEREG1724(ice, SPDIF_CFG));
+       ice->pm_saved_route = inl(ICEMT1724(ice, ROUTE_PLAYBACK));
+       spin_unlock_irq(&ice->reg_lock);
+
+       if (ice->pm_suspend)
+               ice->pm_suspend(ice);
+
+       pci_disable_device(pci);
+       pci_save_state(pci);
+       pci_set_power_state(pci, pci_choose_state(pci, state));
+       return 0;
+}
+
+static int snd_vt1724_resume(struct pci_dev *pci)
+{
+       struct snd_card *card = pci_get_drvdata(pci);
+       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);
+
+       snd_vt1724_chip_reset(ice);
+
+       if (snd_vt1724_chip_init(ice) < 0) {
+               snd_card_disconnect(card);
+               return -EIO;
+       }
+
+       if (ice->pm_resume)
+               ice->pm_resume(ice);
+
+       if (ice->pm_saved_is_spdif_master) {
+               /* switching to external clock via SPDIF */
+               ice->set_spdif_clock(ice);
+       } else {
+               /* internal on-card clock */
+               snd_vt1724_set_pro_rate(ice, ice->pro_rate_default, 1);
+       }
+
+       update_spdif_bits(ice, ice->pm_saved_spdif_ctrl);
+
+       outb(ice->pm_saved_spdif_cfg, ICEREG1724(ice, SPDIF_CFG));
+       outl(ice->pm_saved_route, ICEMT1724(ice, ROUTE_PLAYBACK));
+
+       if (ice->ac97)
+               snd_ac97_resume(ice->ac97);
+
+       snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+       return 0;
+}
+#endif
+
 static struct pci_driver driver = {
        .name = "ICE1724",
        .id_table = snd_vt1724_ids,
        .probe = snd_vt1724_probe,
        .remove = __devexit_p(snd_vt1724_remove),
+#ifdef CONFIG_PM
+       .suspend = snd_vt1724_suspend,
+       .resume = snd_vt1724_resume,
+#endif
 };
 
 static int __init alsa_card_ice1724_init(void)