/*
 * dma.h
 *
 *  Created on: Feb 11, 2014
 *      Author: jal
 */

#ifndef DMA_H_
#define DMA_H_

/*****************************************************************************
** Types/Structures to support DMA serial tx/rx
******************************************************************************/

// A DMA linked list item..
typedef struct
{
	unsigned long int sourceAddr;
	unsigned long int destAddr;
	unsigned long int nextNode;
	unsigned long int dmaControl;
} dmaLinkedListNode;


// DMA channel assignments are as follows...
// Channel			Function
//----------------------------------------
//  0		BACnet receive (UART1 RX)
//  1		BACnet transmit(UART1 TX)
//  2		USB/UI receive (UART0 RX)
//  3		USB/UI transmit(UART0 TX)
//  4		DDM  receive (UART3 RX)
//  5		DDM  transmit (UART3 TX)
//  6		Spare
//  7       Spare
void GPDMAInit(void);

void dmaUart0SendString(char *);
int isUART0CharAvail(void);
int UART0_Getchar(void);
void dmaUart1SendString(char *);
void dmaUart1SendBytes(char *, int);
void dmaUart1SendString(char *);
int isUART1CharAvail(void);
int UART1_Getchar(void);

unsigned char AccumulateGuiCmnd(void);

extern volatile uint8_t *UART1RxRdPtr;
extern volatile uint8_t  *UART0RxRdPtr;

#endif /* DMA_H_ */