89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/* evbNs16550Sio.h - header file for binary interface NS 16550 UART driver */
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/* Copyright 1984-1996, 2010 Wind River Systems, Inc. */
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/*
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modification history
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--------------------
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01c,29apr10,pad Moved extern C statement after include statements.
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01b,02dec97,db changed type from char to UCHAR for element outByte() in
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EVBNS16550_CHAN structure for compatibility with sysLib.h.
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01a,07mar96,tam written (from i8250Sio.h)
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*/
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#ifndef __INCevbNs16550Sioh
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#define __INCevbNs16550Sioh
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#ifndef _ASMLANGUAGE
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#include "vxWorks.h"
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#include "sioLib.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* channel data structure */
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typedef struct EVBNS16550_CHAN
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{
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SIO_DRV_FUNCS * pDrvFuncs; /* driver functions */
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STATUS (*getTxChar) ();
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STATUS (*putRcvChar) ();
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void * getTxArg;
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void * putRcvArg;
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UINT16 int_vec; /* interrupt vector number */
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UINT16 channelMode; /* SIO_MODE_[INT | POLL] */
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UCHAR (*inByte) (ULONG); /* routine to read a byte from register */
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void (*outByte)(ULONG,UCHAR); /* routine to write a byte to register */
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UINT32 clkFreq; /* baud rate generator clock */
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int baudRate; /* baud rate */
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ULONG lcr; /* UART line control register */
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ULONG lst; /* UART line status register */
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ULONG mdc; /* UART modem control register */
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ULONG msr; /* UART modem status register */
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ULONG ier; /* UART interrupt enable register */
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ULONG iid; /* UART interrupt ID register */
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ULONG brdl; /* UART baud rate register */
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ULONG brdh; /* UART baud rate register */
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ULONG data; /* UART data register */
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} EVBNS16550_CHAN;
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/* register definitions */
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#define UART_THR 0x00 /* Transmitter holding reg. */
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#define UART_RDR 0x00 /* Receiver data reg. */
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#define UART_BRDL 0x00 /* Baud rate divisor (LSB) */
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#define UART_BRDH 0x01 /* Baud rate divisor (MSB) */
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#define UART_IER 0x01 /* Interrupt enable reg. */
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#define UART_IID 0x02 /* Interrupt ID reg. */
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#define UART_LCR 0x03 /* Line control reg. */
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#define UART_MDC 0x04 /* Modem control reg. */
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#define UART_LST 0x05 /* Line status reg. */
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#define UART_MSR 0x06 /* Modem status reg. */
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#if defined(__STDC__) || defined(__cplusplus)
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extern void evbNs16550HrdInit(EVBNS16550_CHAN *pDev);
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extern void evbNs16550Int (EVBNS16550_CHAN *pDev);
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#else
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extern void evbNs16550HrdInit();
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extern void evbNs16550Int();
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#endif /* __STDC__ */
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#endif /* _ASMLANGUAGE */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCevbNs16550Sioh */
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