primecellsio.h

2410 NOR FLASH的 BSP

/* ambaSio.h - ARM AMBA UART header file */

/* Copyright 1997 Wind River Systems, Inc. */

/*
modification history
--------------------
01b,21feb00,jpd  renamed primecell... symbols to primeCell...
01a,10nov99,ajb  Modified from ambaSio.h, version 01b.  Added support for
                 enabling interrupts in UART_CR.
*/

#ifndef __INCprimeCellSioh 
#define __INCprimeCellSioh 

#ifdef __cplusplus
extern "C" {
#endif

/* Register description OF ARM AMBA UART */

#ifndef _ASMLANGUAGE

#include "s3c2410.h"



#define CC_NONE                (0X0<<3)
#define CC_EVEN                (0X5<<3)
#define CC_ODD                 (0X4<<3)
#define CC_PARITY_ONE          (0X6<<3)
#define CC_PARITY_ZERO         (0X7<<3)

#define CC_STOP_1BIT           (0X0<<2)
#define CC_STOP_2BIT           (0X1<<2)

#define CC_DATA_5BIT           (0x0)
#define CC_DATA_6BIT           (0x1)
#define CC_DATA_7BIT           (0x2)
#define CC_DATA_8BIT           (0x3)



#define COMM_CTRL               (0X0000|CC_NONE|CC_STOP_1BIT|CC_DATA_8BIT)

#define RxTIMEOUT_ENABLE        (0X1)
#define RxTIMEOUT_DISENABLE     (0X0)

#define FIFO_ENABLE             (0X1)
#define FIFO_DISENABLE          (0X0)

#define FIFO_TX_LEVEL           (0X0) 
#define FIFO_RX_LEVEL           (0X10) 
/* fields of UFSTAT0 */
#define UFS_TXFIFO_FULL		(1<<9)
#define UFS_RXFIFO_FULL		(1<<8)
#define UFS_RXFIFO_NRDATA	0x0f
#define UFS_TXFIFO_NRDATA	0xf0

/* hardware operation macros */
#define UART0_TXFIFO_FULL()		(rUFSTAT0 & UFS_TXFIFO_FULL )
#define UART1_TXFIFO_FULL()		(rUFSTAT1 & UFS_TXFIFO_FULL )
#define UART2_TXFIFO_FULL()		(rUFSTAT2 & UFS_TXFIFO_FULL )

#define UST_RXFIFO_DATA			(1<<0)
#define UART0_RXFIFO_EMPTY()		( ! (rUTRSTAT0 & UST_RXFIFO_DATA ) )
#define UART1_RXFIFO_EMPTY()		( ! (rUTRSTAT1 & UST_RXFIFO_DATA ) )
#define UART2_RXFIFO_EMPTY()		( ! (rUTRSTAT2 & UST_RXFIFO_DATA ) )

#define UART0_RXDATA_ERROR()		( (void *)rUERSTAT0 & 0xf )
#define UART1_RXDATA_ERROR()		( (void *)rUERSTAT1 & 0xf )
#define UART2_RXDATA_ERROR()		( (void *)rUERSTAT2 & 0xf )

#define UART0_SEND_DATA(c)		( (void *)rUTXH0=(unsigned char)(c) )
#define UART1_SEND_DATA(c)		( (void *)rUTXH1=(unsigned char)(c) )
#define UART2_SEND_DATA(c)		( (void *)rUTXH2=(unsigned char)(c) )

#define TX_INTTYPE 1		/*0:Tx interrupt type is pulse, 1:Tx interrupt type is level*/
#define RX_INTTYPE 0		/*0:Rx interrupt type is pulse, 1:Rx interrupt type is level*/

/* offests address */
#define  OFFULCON0     (0x00) /*UART 0 Line control*/
#define  OFFUCON0      (0x04) /*UART 0 Control*/
#define  OFFUFCON0     (0x08) /*UART 0 FIFO control*/
#define  OFFUMCON0     (0x0c) /*UART 0 Modem control*/
#define  OFFUTRSTAT0   (0x10) /*UART 0 Tx/Rx status*/
#define  OFFUERSTAT0   (0x14) /*UART 0 Rx error status*/
#define  OFFUFSTAT0    (0x18) /*UART 0 FIFO status*/
#define  OFFUMSTAT0    (0x1c) /*UART 0 Modem status*/
#define  OFFUTXH0      (0X20) /*UART 0 Transmission Hold*/
#define  OFFURXH0      (0x24) /*UART 0 Receive buffer*/
#define  OFFUBRDIV0    (0x28) /*UART 0 Baud  ate divisor*/





typedef struct AMBA_CHAN
    {
    /* must be first */

    SIO_CHAN	sio;		/* standard SIO_CHAN element */

    /* callbacks */

    STATUS	(*getTxChar) ();  /* installed Tx callback routine */
    STATUS	(*putRcvChar) (); /* installed Rx callback routine */
    void *	getTxArg;	/* argument to Tx callback routine */
    void *	putRcvArg;	/* argument to Rx callback routine */

    UINT32 *	regs;		/* AMBA registers */
    UINT8 	levelRx;	/* Rx Interrupt level for this device */
    UINT8 	levelTx;	/* Tx Interrupt level for this device */

    UINT32	channelMode;	/* such as INT, POLL modes */
    int		baudRate;	/* the current baud rate */

    } AMBA_CHAN;


/* function declarations */

extern void primeCellSioInt (AMBA_CHAN *pChan);
extern void primeCellSioIntTx (AMBA_CHAN *pChan);
extern void primeCellSioIntRx (AMBA_CHAN *pChan);
extern void primeCellSioDevInit (AMBA_CHAN *pChan);

#endif	/* _ASMLANGUAGE */

#ifdef __cplusplus
}
#endif
 
#endif /* __INCprimeCellSioh */