sysi2ckahlua.h

VxWorks下 Mv2100的BSP源码

/* sysI2cKahlua.h - Kahlua I2C Driver Header Module */

/* Copyright 1984-2000 Wind River Systems, Inc. */
/* Copyright 1998-2000 Motorola, Inc. All Rights Reserved */

/*
modification history
--------------------
01d,12jun02,kab  SPR 74987: cplusplus protection
01c,15jun00,dmw  updated following WRS code review.
01b,28may99,dmw  Updated to Wind River coding standards.
01a,18feb99,dmw  created - Based on MCG's DVT group's Kahlua I2C driver. 
*/

/*
DESCRIPTION

I2C Driver Header (Low Level Routines) Module
Kahlua Memory Controller (MPC8240 - PowerPlus Architecture)

Notes:
	1. The low level routines were modeled after the original
	   driver written by Pamela Wolfe.
*/

#ifndef	INCsysI2cKahluah
#define	INCsysI2cKahluah

#ifdef __cplusplus
    extern "C" {
#endif

/* Kahlua Register masks */

#define KAHLUA_I2C_ADDRESS_REG_MASK 	0x000000FE
#define KAHLUA_I2C_FREQ_DIV_REG_MASK	0x0000003F
#define KAHLUA_I2C_CONTROL_REG_MASK	0x000000FC
#define KAHLUA_I2C_STATUS_REG_MASK	0x000000F7
#define KAHLUA_I2C_DATA_REG_MASK	0x000000FF


/* Kahlua Control register values */

#define KAHLUA_I2C_CONTROL_REG_MEN	(1<<7)	/* module enable */
#define KAHLUA_I2C_CONTROL_REG_MIEN	(1<<6)	/* module interrupt enable */
#define KAHLUA_I2C_CONTROL_REG_MSTA	(1<<5)	/* master/slave mode */
#define KAHLUA_I2C_CONTROL_REG_MTX	(1<<4)	/* transmit/receiver mode  */
#define KAHLUA_I2C_CONTROL_REG_TXAK	(1<<3)	/* transfer ack enable */
#define KAHLUA_I2C_CONTROL_REG_RSTA	(1<<2)	/* repeat start */


/* Kahlua Status register values */

#define KAHLUA_I2C_STATUS_REG_MCF	(1<<7)	/* data transferring */
#define KAHLUA_I2C_STATUS_REG_MAAS	(1<<6)	/* addressed as a slave */
#define KAHLUA_I2C_STATUS_REG_MBB	(1<<5)	/* bus busy */
#define KAHLUA_I2C_STATUS_REG_MAL	(1<<4)	/* arbitration lost */
#define KAHLUA_I2C_STATUS_REG_SRW	(1<<2)	/* slave read/write */
#define KAHLUA_I2C_STATUS_REG_MIF	(1<<1)	/* module interrupt */
#define KAHLUA_I2C_STATUS_REG_RXAK	(1<<0)	/* receive ack */

#ifdef __cplusplus
    }
#endif

#endif /* INCsysI2cKahluah */