1. 根目录:
2. arch
3. unicore32
4. include
5. mach
6. regs-ac97.h

/*
 * PKUnity AC97 Registers
 */

#define PKUNITY_AC97_CONR		(PKUNITY_AC97_BASE + 0x0000)
#define PKUNITY_AC97_OCR		(PKUNITY_AC97_BASE + 0x0004)
#define PKUNITY_AC97_ICR		(PKUNITY_AC97_BASE + 0x0008)
#define PKUNITY_AC97_CRAC		(PKUNITY_AC97_BASE + 0x000C)
#define PKUNITY_AC97_INTR		(PKUNITY_AC97_BASE + 0x0010)
#define PKUNITY_AC97_INTRSTAT		(PKUNITY_AC97_BASE + 0x0014)
#define PKUNITY_AC97_INTRCLEAR		(PKUNITY_AC97_BASE + 0x0018)
#define PKUNITY_AC97_ENABLE		(PKUNITY_AC97_BASE + 0x001C)
#define PKUNITY_AC97_OUT_FIFO		(PKUNITY_AC97_BASE + 0x0020)
#define PKUNITY_AC97_IN_FIFO		(PKUNITY_AC97_BASE + 0x0030)

#define AC97_CODEC_REG(v)               FIELD((v), 7, 16)
#define AC97_CODEC_VAL(v)               FIELD((v), 16, 0)
#define AC97_CODEC_WRITECOMPLETE        FIELD(1, 1, 2)

/*
 * VAR PLAY SAMPLE RATE
 */
#define AC97_CMD_VPSAMPLE		(FIELD(3, 2, 16) | FIELD(3, 2, 0))

/*
 * FIX CAPTURE SAMPLE RATE
 */
#define AC97_CMD_FCSAMPLE		FIELD(7, 3, 0)

#define AC97_CMD_RESET			FIELD(1, 1, 0)
#define AC97_CMD_ENABLE			FIELD(1, 1, 0)
#define AC97_CMD_DISABLE		FIELD(0, 1, 0)