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https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
[ALSA] Add PM support to SB-support code
Modules: SB drivers,SB16/AWE driver Add PM support to SB-support code. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
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cb60e5f5b2
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5bdb6a1629
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@ -107,6 +107,10 @@ struct snd_sb {
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spinlock_t midi_input_lock;
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struct snd_info_entry *proc_entry;
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#ifdef CONFIG_PM
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unsigned char saved_regs[0x20];
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#endif
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};
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/* I/O ports */
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@ -290,6 +294,10 @@ int snd_sbdsp_create(struct snd_card *card,
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void snd_sbmixer_write(struct snd_sb *chip, unsigned char reg, unsigned char data);
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unsigned char snd_sbmixer_read(struct snd_sb *chip, unsigned char reg);
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int snd_sbmixer_new(struct snd_sb *chip);
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#ifdef CONFIG_PM
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void snd_sbmixer_suspend(struct snd_sb *chip);
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void snd_sbmixer_resume(struct snd_sb *chip);
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#endif
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/* sb8_init.c */
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int snd_sb8dsp_pcm(struct snd_sb *chip, int device, struct snd_pcm ** rpcm);
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@ -307,10 +307,12 @@ static int snd_sb16_playback_trigger(struct snd_pcm_substream *substream,
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spin_lock(&chip->reg_lock);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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chip->mode |= SB_RATE_LOCK_PLAYBACK;
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snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_OFF : SB_DSP_DMA8_OFF);
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/* next two lines are needed for some types of DSP4 (SB AWE 32 - 4.13) */
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if (chip->mode & SB_RATE_LOCK_CAPTURE)
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@ -374,10 +376,12 @@ static int snd_sb16_capture_trigger(struct snd_pcm_substream *substream,
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spin_lock(&chip->reg_lock);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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chip->mode |= SB_RATE_LOCK_CAPTURE;
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snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_OFF : SB_DSP_DMA8_OFF);
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/* next two lines are needed for some types of DSP4 (SB AWE 32 - 4.13) */
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if (chip->mode & SB_RATE_LOCK_PLAYBACK)
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@ -293,6 +293,10 @@ EXPORT_SYMBOL(snd_sbmixer_write);
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EXPORT_SYMBOL(snd_sbmixer_read);
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EXPORT_SYMBOL(snd_sbmixer_new);
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EXPORT_SYMBOL(snd_sbmixer_add_ctl);
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#ifdef CONFIG_PM
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EXPORT_SYMBOL(snd_sbmixer_suspend);
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EXPORT_SYMBOL(snd_sbmixer_resume);
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#endif
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/*
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* INIT part
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@ -853,3 +853,140 @@ int snd_sbmixer_new(struct snd_sb *chip)
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}
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return 0;
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}
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#ifdef CONFIG_PM
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static unsigned char sb20_saved_regs[] = {
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SB_DSP20_MASTER_DEV,
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SB_DSP20_PCM_DEV,
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SB_DSP20_FM_DEV,
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SB_DSP20_CD_DEV,
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};
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static unsigned char sbpro_saved_regs[] = {
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SB_DSP_MASTER_DEV,
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SB_DSP_PCM_DEV,
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SB_DSP_PLAYBACK_FILT,
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SB_DSP_FM_DEV,
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SB_DSP_CD_DEV,
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SB_DSP_LINE_DEV,
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SB_DSP_MIC_DEV,
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SB_DSP_CAPTURE_SOURCE,
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SB_DSP_CAPTURE_FILT,
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};
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static unsigned char sb16_saved_regs[] = {
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SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,
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SB_DSP4_3DSE,
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SB_DSP4_BASS_DEV, SB_DSP4_BASS_DEV + 1,
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SB_DSP4_TREBLE_DEV, SB_DSP4_TREBLE_DEV + 1,
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SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,
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SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,
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SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,
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SB_DSP4_OUTPUT_SW,
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SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,
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SB_DSP4_LINE_DEV, SB_DSP4_LINE_DEV + 1,
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SB_DSP4_MIC_DEV,
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SB_DSP4_SPEAKER_DEV,
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SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,
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SB_DSP4_OGAIN_DEV, SB_DSP4_OGAIN_DEV + 1,
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SB_DSP4_MIC_AGC
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};
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static unsigned char dt019x_saved_regs[] = {
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SB_DT019X_MASTER_DEV,
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SB_DT019X_PCM_DEV,
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SB_DT019X_SYNTH_DEV,
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SB_DT019X_CD_DEV,
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SB_DT019X_MIC_DEV,
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SB_DT019X_SPKR_DEV,
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SB_DT019X_LINE_DEV,
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SB_DSP4_OUTPUT_SW,
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SB_DT019X_OUTPUT_SW2,
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SB_DT019X_CAPTURE_SW,
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};
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static unsigned char als4000_saved_regs[] = {
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SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,
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SB_DSP4_OUTPUT_SW,
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SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,
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SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,
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SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,
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SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,
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SB_DSP4_MIC_AGC,
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SB_DSP4_MIC_DEV,
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SB_DSP4_SPEAKER_DEV,
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SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,
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SB_DSP4_OGAIN_DEV, SB_DSP4_OGAIN_DEV + 1,
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SB_DT019X_OUTPUT_SW2,
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SB_ALS4000_MONO_IO_CTRL,
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SB_ALS4000_MIC_IN_GAIN,
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SB_ALS4000_3D_SND_FX,
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SB_ALS4000_3D_TIME_DELAY,
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};
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static void save_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
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{
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unsigned char *val = chip->saved_regs;
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snd_assert(num_regs > ARRAY_SIZE(chip->saved_regs), return);
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for (; num_regs; num_regs--)
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*val++ = snd_sbmixer_read(chip, *regs++);
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}
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static void restore_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
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{
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unsigned char *val = chip->saved_regs;
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snd_assert(num_regs > ARRAY_SIZE(chip->saved_regs), return);
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for (; num_regs; num_regs--)
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snd_sbmixer_write(chip, *regs++, *val++);
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}
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void snd_sbmixer_suspend(struct snd_sb *chip)
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{
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switch (chip->hardware) {
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case SB_HW_20:
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case SB_HW_201:
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save_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));
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break;
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case SB_HW_PRO:
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save_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));
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break;
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case SB_HW_16:
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case SB_HW_ALS100:
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save_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));
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break;
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case SB_HW_ALS4000:
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save_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));
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break;
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case SB_HW_DT019X:
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save_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));
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break;
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default:
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break;
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}
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}
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void snd_sbmixer_resume(struct snd_sb *chip)
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{
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switch (chip->hardware) {
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case SB_HW_20:
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case SB_HW_201:
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restore_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));
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break;
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case SB_HW_PRO:
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restore_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));
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break;
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case SB_HW_16:
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case SB_HW_ALS100:
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restore_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));
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break;
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case SB_HW_ALS4000:
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restore_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));
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break;
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case SB_HW_DT019X:
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restore_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));
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break;
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default:
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break;
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}
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}
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#endif
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