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kernel add
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#ifndef AK4396_H_INCLUDED
#define AK4396_H_INCLUDED
#define AK4396_WRITE 0x2000
#define AK4396_CONTROL_1 0
#define AK4396_CONTROL_2 1
#define AK4396_CONTROL_3 2
#define AK4396_LCH_ATT 3
#define AK4396_RCH_ATT 4
/* control 1 */
#define AK4396_RSTN 0x01
#define AK4396_DIF_MASK 0x0e
#define AK4396_DIF_16_LSB 0x00
#define AK4396_DIF_20_LSB 0x02
#define AK4396_DIF_24_MSB 0x04
#define AK4396_DIF_24_I2S 0x06
#define AK4396_DIF_24_LSB 0x08
#define AK4396_ACKS 0x80
/* control 2 */
#define AK4396_SMUTE 0x01
#define AK4396_DEM_MASK 0x06
#define AK4396_DEM_441 0x00
#define AK4396_DEM_OFF 0x02
#define AK4396_DEM_48 0x04
#define AK4396_DEM_32 0x06
#define AK4396_DFS_MASK 0x18
#define AK4396_DFS_NORMAL 0x00
#define AK4396_DFS_DOUBLE 0x08
#define AK4396_DFS_QUAD 0x10
#define AK4396_SLOW 0x20
#define AK4396_DZFM 0x40
#define AK4396_DZFE 0x80
/* control 3 */
#define AK4396_DZFB 0x04
#define AK4396_DCKB 0x10
#define AK4396_DCKS 0x20
#define AK4396_DSDM 0x40
#define AK4396_D_P_MASK 0x80
#define AK4396_PCM 0x00
#define AK4396_DSD 0x80
#endif
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