[ALSA] emu10k1 - Add PM support

Modules: EMU10K1/EMU10K2 driver

Add PM support to emu10k1 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 91 insertions, 53 deletions

diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index 9be900224771..2dfa932f7825 100644
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/sound/pci/emu10k1/emu10k1.c
@@ -125,65 +125,43 @@ static int __devinit snd_card_emu10k1_probe(struct pci_dev *pci,
 	if ((err = snd_emu10k1_create(card, pci, extin[dev], extout[dev],
 				      (long)max_buffer_size[dev] * 1024 * 1024,
 				      enable_ir[dev], subsystem[dev],
-				      &emu)) < 0) {
-		snd_card_free(card);
-		return err;
-	}		
-	if ((err = snd_emu10k1_pcm(emu, 0, NULL)) < 0) {
-		snd_card_free(card);
-		return err;
-	}		
-	if ((err = snd_emu10k1_pcm_mic(emu, 1, NULL)) < 0) {
-		snd_card_free(card);
-		return err;
-	}		
-	if ((err = snd_emu10k1_pcm_efx(emu, 2, NULL)) < 0) {
-		snd_card_free(card);
-		return err;
-	}
+				      &emu)) < 0)
+		goto error;
+	card->private_data = emu;
+	if ((err = snd_emu10k1_pcm(emu, 0, NULL)) < 0)
+		goto error;
+	if ((err = snd_emu10k1_pcm_mic(emu, 1, NULL)) < 0)
+		goto error;
+	if ((err = snd_emu10k1_pcm_efx(emu, 2, NULL)) < 0)
+		goto error;
 	/* This stores the periods table. */
 	if (emu->card_capabilities->ca0151_chip) { /* P16V */	
-		if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 1024, &emu->p16v_buffer) < 0) {
-			snd_p16v_free(emu);
-			return -ENOMEM;
-		}
+		if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
+					       1024, &emu->p16v_buffer)) < 0)
+			goto error;
 	}
 
-	if ((err = snd_emu10k1_mixer(emu, 0, 3)) < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if ((err = snd_emu10k1_mixer(emu, 0, 3)) < 0)
+		goto error;
 	
-	if ((err = snd_emu10k1_timer(emu, 0)) < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if ((err = snd_emu10k1_timer(emu, 0)) < 0)
+		goto error;
 
-	if ((err = snd_emu10k1_pcm_multi(emu, 3, NULL)) < 0) {
-		snd_card_free(card);
-		return err;
-	}
-	if (emu->card_capabilities->ca0151_chip) { /* P16V */	
-		if ((err = snd_p16v_pcm(emu, 4, NULL)) < 0) {
-			snd_card_free(card);
-			return err;
-		}
+	if ((err = snd_emu10k1_pcm_multi(emu, 3, NULL)) < 0)
+		goto error;
+	if (emu->card_capabilities->ca0151_chip) { /* P16V */
+		if ((err = snd_p16v_pcm(emu, 4, NULL)) < 0)
+			goto error;
 	}
 	if (emu->audigy) {
-		if ((err = snd_emu10k1_audigy_midi(emu)) < 0) {
-			snd_card_free(card);
-			return err;
-		}
+		if ((err = snd_emu10k1_audigy_midi(emu)) < 0)
+			goto error;
 	} else {
-		if ((err = snd_emu10k1_midi(emu)) < 0) {
-			snd_card_free(card);
-			return err;
-		}
-	}
-	if ((err = snd_emu10k1_fx8010_new(emu, 0, NULL)) < 0) {
-		snd_card_free(card);
-		return err;
+		if ((err = snd_emu10k1_midi(emu)) < 0)
+			goto error;
 	}
+	if ((err = snd_emu10k1_fx8010_new(emu, 0, NULL)) < 0)
+		goto error;
 #ifdef ENABLE_SYNTH
 	if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
 			       sizeof(struct snd_emu10k1_synth_arg), &wave) < 0 ||
@@ -206,13 +184,16 @@ static int __devinit snd_card_emu10k1_probe(struct pci_dev *pci,
 		 "%s (rev.%d, serial:0x%x) at 0x%lx, irq %i",
 		 card->shortname, emu->revision, emu->serial, emu->port, emu->irq);
 
-	if ((err = snd_card_register(card)) < 0) {
-		snd_card_free(card);
-		return err;
-	}
+	if ((err = snd_card_register(card)) < 0)
+		goto error;
+
 	pci_set_drvdata(pci, card);
 	dev++;
 	return 0;
+
+ error:
+	snd_card_free(card);
+	return err;
 }
 
 static void __devexit snd_card_emu10k1_remove(struct pci_dev *pci)
@@ -221,11 +202,68 @@ static void __devexit snd_card_emu10k1_remove(struct pci_dev *pci)
 	pci_set_drvdata(pci, NULL);
 }
 
+
+#ifdef CONFIG_PM
+static int snd_emu10k1_suspend(struct pci_dev *pci, pm_message_t state)
+{
+	struct snd_card *card = pci_get_drvdata(pci);
+	struct snd_emu10k1 *emu = card->private_data;
+
+	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+
+	snd_pcm_suspend_all(emu->pcm);
+	snd_pcm_suspend_all(emu->pcm_mic);
+	snd_pcm_suspend_all(emu->pcm_efx);
+	snd_pcm_suspend_all(emu->pcm_multi);
+	snd_pcm_suspend_all(emu->pcm_p16v);
+
+	snd_ac97_suspend(emu->ac97);
+
+	snd_emu10k1_efx_suspend(emu);
+	snd_emu10k1_suspend_regs(emu);
+	if (emu->card_capabilities->ca0151_chip)
+		snd_p16v_suspend(emu);
+
+	snd_emu10k1_done(emu);
+
+	pci_set_power_state(pci, PCI_D3hot);
+	pci_disable_device(pci);
+	pci_save_state(pci);
+	return 0;
+}
+
+int snd_emu10k1_resume(struct pci_dev *pci)
+{
+	struct snd_card *card = pci_get_drvdata(pci);
+	struct snd_emu10k1 *emu = card->private_data;
+
+	pci_restore_state(pci);
+	pci_enable_device(pci);
+	pci_set_power_state(pci, PCI_D0);
+	pci_set_master(pci);
+	
+	snd_emu10k1_resume_init(emu);
+	snd_emu10k1_efx_resume(emu);
+	snd_ac97_resume(emu->ac97);
+	snd_emu10k1_resume_regs(emu);
+
+	if (emu->card_capabilities->ca0151_chip)
+		snd_p16v_resume(emu);
+
+	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+	return 0;
+}
+#endif
+
 static struct pci_driver driver = {
 	.name = "EMU10K1_Audigy",
 	.id_table = snd_emu10k1_ids,
 	.probe = snd_card_emu10k1_probe,
 	.remove = __devexit_p(snd_card_emu10k1_remove),
+#ifdef CONFIG_PM
+	.suspend = snd_emu10k1_suspend,
+	.resume = snd_emu10k1_resume,
+#endif
 };
 
 static int __init alsa_card_emu10k1_init(void)