AK4113_FS0
#define AK4113_FS_8000HZ (AK4113_FS3|AK4113_FS0)
#define AK4113_FS_11025HZ (AK4113_FS2|AK4113_FS0)
#define AK4113_FS_16000HZ (AK4113_FS2|AK4113_FS1|AK4113_FS0)
#define AK4113_FS_32000HZ (AK4113_FS1|AK4113_FS0)
#define AK4113_FS_64000HZ (AK4113_FS3|AK4113_FS1|AK4113_FS0)
switch (rcs1 & (AK4113_FS0|AK4113_FS1|AK4113_FS2|AK4113_FS3)) {