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Commit 70352914 authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
Browse files

[ALSA] als4000 - Add PM support 



Modules: ALS4000 driver

Add PM support to PCI ALS4000 driver.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 5bdb6a16

sound/pci/als4000.c

+69 −7
Original line number Diff line number Diff line
@@ -109,6 +109,7 @@ struct snd_card_als4000 { 
	/* most frequent access first */

	unsigned long gcr;

	struct pci_dev *pci;

	struct snd_sb *chip;

#ifdef SUPPORT_JOYSTICK

	struct gameport *gameport;

#endif
@@ -305,14 +306,20 @@ static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int 
	int result = 0;

	

	spin_lock(&chip->mixer_lock);

	if (cmd == SNDRV_PCM_TRIGGER_START) {

	switch (cmd) {

	case SNDRV_PCM_TRIGGER_START:

	case SNDRV_PCM_TRIGGER_RESUME:

		chip->mode |= SB_RATE_LOCK_CAPTURE;

		snd_sbmixer_write(chip, 0xde, capture_cmd(chip));

	} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {

		break;

	case SNDRV_PCM_TRIGGER_STOP:

	case SNDRV_PCM_TRIGGER_SUSPEND:

		chip->mode &= ~SB_RATE_LOCK_CAPTURE;

		snd_sbmixer_write(chip, 0xde, 0);

	} else {

		break;

	default:

		result = -EINVAL;

		break;

	}

	spin_unlock(&chip->mixer_lock);

	return result;
@@ -324,14 +331,20 @@ static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int 
	int result = 0;



	spin_lock(&chip->reg_lock);

	if (cmd == SNDRV_PCM_TRIGGER_START) {

	switch (cmd) {

	case SNDRV_PCM_TRIGGER_START:

	case SNDRV_PCM_TRIGGER_RESUME:

		chip->mode |= SB_RATE_LOCK_PLAYBACK;

		snd_sbdsp_command(chip, playback_cmd(chip).dma_on);

	} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {

		break;

	case SNDRV_PCM_TRIGGER_STOP:

	case SNDRV_PCM_TRIGGER_SUSPEND:

		snd_sbdsp_command(chip, playback_cmd(chip).dma_off);

		chip->mode &= ~SB_RATE_LOCK_PLAYBACK;

	} else {

		break;

	default:

		result = -EINVAL;

		break;

	}

	spin_unlock(&chip->reg_lock);

	return result;
@@ -551,7 +564,7 @@ static void snd_als4000_set_addr(unsigned long gcr, 
	snd_als4000_gcr_write_addr(gcr, 0xa9, confB);

}



static void __devinit snd_als4000_configure(struct snd_sb *chip)

static void snd_als4000_configure(struct snd_sb *chip)

{

	unsigned tmp;

	int i;
@@ -718,6 +731,7 @@ static int __devinit snd_card_als4000_probe(struct pci_dev *pci, 
				    &chip)) < 0) {

		goto out_err;

	}

	acard->chip = chip;



	chip->pci = pci;

	chip->alt_port = gcr;
@@ -777,11 +791,59 @@ static void __devexit snd_card_als4000_remove(struct pci_dev *pci) 
	pci_set_drvdata(pci, NULL);

}



#ifdef CONFIG_PM

static int snd_als4000_suspend(struct pci_dev *pci, pm_message_t state)

{

	struct snd_card *card = pci_get_drvdata(pci);

	struct snd_card_als4000 *acard = card->private_data;

	struct snd_sb *chip = acard->chip;



	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);

	

	snd_pcm_suspend_all(chip->pcm);

	snd_sbmixer_suspend(chip);



	pci_set_power_state(pci, PCI_D3hot);

	pci_disable_device(pci);

	pci_save_state(pci);

	return 0;

}



static int snd_als4000_resume(struct pci_dev *pci)

{

	struct snd_card *card = pci_get_drvdata(pci);

	struct snd_card_als4000 *acard = card->private_data;

	struct snd_sb *chip = acard->chip;



	pci_restore_state(pci);

	pci_enable_device(pci);

	pci_set_power_state(pci, PCI_D0);

	pci_set_master(pci);



	snd_als4000_configure(chip);

	snd_sbdsp_reset(chip);

	snd_sbmixer_resume(chip);



#ifdef SUPPORT_JOYSTICK

	if (acard->gameport)

		snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1);

#endif



	snd_power_change_state(card, SNDRV_CTL_POWER_D0);

	return 0;

}

#endif





static struct pci_driver driver = {

	.name = "ALS4000",

	.id_table = snd_als4000_ids,

	.probe = snd_card_als4000_probe,

	.remove = __devexit_p(snd_card_als4000_remove),

#ifdef CONFIG_PM

	.suspend = snd_als4000_suspend,

	.resume = snd_als4000_resume,

#endif

};



static int __init alsa_card_als4000_init(void)