[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>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/sound/sb.h b/include/sound/sb.h
index 8e82460c4d34..431d06675e36 100644
--- a/include/sound/sb.h
+++ b/include/sound/sb.h
@@ -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);