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/* i2o.h - Header file for the I2O`s interface */
/* Copyright - Galileo technology. */
#ifndef __INCi2oh
#define __INCi2oh
/* includes */
#include "core.h"
/* typedefs */
typedef enum _i2oMessageReg{MESSAGE_REG_0,MESSAGE_REG_1} I2O_MESSAGE_REG;
typedef enum _cirQueSize{I20_16K = 0x1,I20_32K = 0x2,I20_64K = 0x4,\
I20_128K = 0x8,I20_256K = 0xc} CIRCULAR_QUEUE_SIZE;
/* Message handle Functions */
unsigned int getInBoundMassege(I2O_MESSAGE_REG messageRegNum);
bool sendOutBoundMassege(I2O_MESSAGE_REG messageRegNum,unsigned int message);
bool checkInBoundIntAndClear(I2O_MESSAGE_REG messageRegNum);
bool outBoundMessageAcknowledge(I2O_MESSAGE_REG messageRegNum);
bool maskInBoundMessageInterrupt(I2O_MESSAGE_REG messageRegNum);
bool enableInBoundMessageInterrupt(I2O_MESSAGE_REG messageRegNum);
bool maskOutBoundMessageInterrupt(I2O_MESSAGE_REG messageRegNum);
bool enableOutBoundMessageInterrupt(I2O_MESSAGE_REG messageRegNum);
/* Doorbell handle Functions */
unsigned int readInBoundDoorBellInt(void);
bool initiateOutBoundDoorBellInt(unsigned int interruptBits);
bool clearInBoundDoorBellInt(unsigned int interruptBits);
bool isInBoundDoorBellInterruptSet(void);
bool isOutBoundDoorBellInterruptSet(void); /* For acknowledge */
bool maskInBoundDoorBellInterrupt(void);
bool enableInBoundDoorBellInterrupt(void);
bool maskOutBoundDoorBellInterrupt(void);
bool enableOutBoundDoorBellInterrupt(void);
/* I2O - Circular Queues handle Functions */
/* initialization */
bool circularQueueEnable(CIRCULAR_QUEUE_SIZE cirQueSize,
unsigned int queueBaseAddr);
/* Inbound Post Queue */
unsigned int inBoundPostQueuePop(void);
bool isInBoundPostQueueInterruptSet(void);
bool clearInBoundPostQueueInterrupt(void);
void maskInBoundPostQueueInterrupt(void);
void enableInBoundPostQueueInterrupt(void);
/* Outbound Post Queue */
bool outBoundPostQueuePush(unsigned int data);
bool isOutBoundPostQueueEmpty(void);
/* Inbound Free Queue */
bool inBoundFreeQueuePush(unsigned int data);
bool isInBoundFreeQueueEmpty(void);
/* Outbound Free Queue */
unsigned int outBoundFreeQueuePop(void);
#endif /* __INCi2oh */
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