Commit 5bdb6a16 authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
Browse files

[ALSA] Add PM support to SB-support code 



Modules: SB drivers,SB16/AWE driver

Add PM support to SB-support code.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent cb60e5f5

include/sound/sb.h

+8 −0
Original line number Diff line number Diff line
@@ -107,6 +107,10 @@ struct snd_sb { 
	spinlock_t midi_input_lock;



	struct snd_info_entry *proc_entry;



#ifdef CONFIG_PM

	unsigned char saved_regs[0x20];

#endif

};



/* I/O ports */
@@ -290,6 +294,10 @@ int snd_sbdsp_create(struct snd_card *card, 
void snd_sbmixer_write(struct snd_sb *chip, unsigned char reg, unsigned char data);

unsigned char snd_sbmixer_read(struct snd_sb *chip, unsigned char reg);

int snd_sbmixer_new(struct snd_sb *chip);

#ifdef CONFIG_PM

void snd_sbmixer_suspend(struct snd_sb *chip);

void snd_sbmixer_resume(struct snd_sb *chip);

#endif



/* sb8_init.c */

int snd_sb8dsp_pcm(struct snd_sb *chip, int device, struct snd_pcm ** rpcm);

sound/isa/sb/sb16_main.c

+4 −0
Original line number Diff line number Diff line
@@ -307,10 +307,12 @@ static int snd_sb16_playback_trigger(struct snd_pcm_substream *substream, 
	spin_lock(&chip->reg_lock);

	switch (cmd) {

	case SNDRV_PCM_TRIGGER_START:

	case SNDRV_PCM_TRIGGER_RESUME:

		chip->mode |= SB_RATE_LOCK_PLAYBACK;

		snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);

		break;

	case SNDRV_PCM_TRIGGER_STOP:

	case SNDRV_PCM_TRIGGER_SUSPEND:

		snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_OFF : SB_DSP_DMA8_OFF);

		/* next two lines are needed for some types of DSP4 (SB AWE 32 - 4.13) */

		if (chip->mode & SB_RATE_LOCK_CAPTURE)
@@ -374,10 +376,12 @@ static int snd_sb16_capture_trigger(struct snd_pcm_substream *substream, 
	spin_lock(&chip->reg_lock);

	switch (cmd) {

	case SNDRV_PCM_TRIGGER_START:

	case SNDRV_PCM_TRIGGER_RESUME:

		chip->mode |= SB_RATE_LOCK_CAPTURE;

		snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);

		break;

	case SNDRV_PCM_TRIGGER_STOP:

	case SNDRV_PCM_TRIGGER_SUSPEND:

		snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_OFF : SB_DSP_DMA8_OFF);

		/* next two lines are needed for some types of DSP4 (SB AWE 32 - 4.13) */

		if (chip->mode & SB_RATE_LOCK_PLAYBACK)

sound/isa/sb/sb_common.c

+4 −0
Original line number Diff line number Diff line
@@ -293,6 +293,10 @@ EXPORT_SYMBOL(snd_sbmixer_write); 
EXPORT_SYMBOL(snd_sbmixer_read);

EXPORT_SYMBOL(snd_sbmixer_new);

EXPORT_SYMBOL(snd_sbmixer_add_ctl);

#ifdef CONFIG_PM

EXPORT_SYMBOL(snd_sbmixer_suspend);

EXPORT_SYMBOL(snd_sbmixer_resume);

#endif



/*

 *  INIT part

sound/isa/sb/sb_mixer.c

+137 −0
Original line number Diff line number Diff line
@@ -853,3 +853,140 @@ int snd_sbmixer_new(struct snd_sb *chip) 
	}

	return 0;

}



#ifdef CONFIG_PM

static unsigned char sb20_saved_regs[] = {

	SB_DSP20_MASTER_DEV,

	SB_DSP20_PCM_DEV,

	SB_DSP20_FM_DEV,

	SB_DSP20_CD_DEV,

};



static unsigned char sbpro_saved_regs[] = {

	SB_DSP_MASTER_DEV,

	SB_DSP_PCM_DEV,

	SB_DSP_PLAYBACK_FILT,

	SB_DSP_FM_DEV,

	SB_DSP_CD_DEV,

	SB_DSP_LINE_DEV,

	SB_DSP_MIC_DEV,

	SB_DSP_CAPTURE_SOURCE,

	SB_DSP_CAPTURE_FILT,

};



static unsigned char sb16_saved_regs[] = {

	SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,

	SB_DSP4_3DSE,

	SB_DSP4_BASS_DEV, SB_DSP4_BASS_DEV + 1,

	SB_DSP4_TREBLE_DEV, SB_DSP4_TREBLE_DEV + 1,

	SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,

	SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,

	SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,

	SB_DSP4_OUTPUT_SW,

	SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,

	SB_DSP4_LINE_DEV, SB_DSP4_LINE_DEV + 1,

	SB_DSP4_MIC_DEV,

	SB_DSP4_SPEAKER_DEV,

	SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,

	SB_DSP4_OGAIN_DEV, SB_DSP4_OGAIN_DEV + 1,

	SB_DSP4_MIC_AGC

};



static unsigned char dt019x_saved_regs[] = {

	SB_DT019X_MASTER_DEV,

	SB_DT019X_PCM_DEV,

	SB_DT019X_SYNTH_DEV,

	SB_DT019X_CD_DEV,

	SB_DT019X_MIC_DEV,

	SB_DT019X_SPKR_DEV,

	SB_DT019X_LINE_DEV,

	SB_DSP4_OUTPUT_SW,

	SB_DT019X_OUTPUT_SW2,

	SB_DT019X_CAPTURE_SW,

};



static unsigned char als4000_saved_regs[] = {

	SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,

	SB_DSP4_OUTPUT_SW,

	SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,

	SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,

	SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,

	SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,

	SB_DSP4_MIC_AGC,

	SB_DSP4_MIC_DEV,

	SB_DSP4_SPEAKER_DEV,

	SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,

	SB_DSP4_OGAIN_DEV, SB_DSP4_OGAIN_DEV + 1,

	SB_DT019X_OUTPUT_SW2,

	SB_ALS4000_MONO_IO_CTRL,

	SB_ALS4000_MIC_IN_GAIN,

	SB_ALS4000_3D_SND_FX,

	SB_ALS4000_3D_TIME_DELAY,

};



static void save_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)

{

	unsigned char *val = chip->saved_regs;

	snd_assert(num_regs > ARRAY_SIZE(chip->saved_regs), return);

	for (; num_regs; num_regs--)

		*val++ = snd_sbmixer_read(chip, *regs++);

}



static void restore_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)

{

	unsigned char *val = chip->saved_regs;

	snd_assert(num_regs > ARRAY_SIZE(chip->saved_regs), return);

	for (; num_regs; num_regs--)

		snd_sbmixer_write(chip, *regs++, *val++);

}



void snd_sbmixer_suspend(struct snd_sb *chip)

{

	switch (chip->hardware) {

	case SB_HW_20:

	case SB_HW_201:

		save_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));

		break;

	case SB_HW_PRO:

		save_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));

		break;

	case SB_HW_16:

	case SB_HW_ALS100:

		save_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));

		break;

	case SB_HW_ALS4000:

		save_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));

		break;

	case SB_HW_DT019X:

		save_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));

		break;

	default:

		break;

	}

}



void snd_sbmixer_resume(struct snd_sb *chip)

{

	switch (chip->hardware) {

	case SB_HW_20:

	case SB_HW_201:

		restore_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));

		break;

	case SB_HW_PRO:

		restore_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));

		break;

	case SB_HW_16:

	case SB_HW_ALS100:

		restore_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));

		break;

	case SB_HW_ALS4000:

		restore_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));

		break;

	case SB_HW_DT019X:

		restore_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));

		break;

	default:

		break;

	}

}

#endif