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/*
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#ifndef _MC68681_H_
#define _MC68681_H_
#ifdef __cplusplus
extern "C" {
#endif
/*
* These are just used in the interface between this driver and
* the read/write register routines when accessing the first
* control port.
*/
#define MC68681_STATUS 1
#define MC68681_RX_BUFFER 3
#define MC68681_MODE 0
#define MC68681_CLOCK_SELECT 1
#define MC68681_COMMAND 2
#define MC68681_TX_BUFFER 3
/*
* Data Port bit map configuration
*
* D0 : Baud Rate Set Selection
* D1 - D2 : Extended Baud Rate Setting
*/
#define MC68681_DATA_BAUD_RATE_SET_1 0 /* ACR[7] = 0 */
#define MC68681_DATA_BAUD_RATE_SET_2 1 /* ACR[7] = 1 */
#define MC68681_XBRG_IGNORED (0 << 1)
#define MC68681_XBRG_ENABLED (1 << 1)
#define MC68681_XBRG_DISABLED (2 << 1)
#define MC68681_XBRG_MASK (3 << 1)
/*
* Custom baud rate table information
*/
typedef unsigned char mc68681_baud_t;
typedef mc68681_baud_t mc68681_baud_table_t[RTEMS_TERMIOS_NUMBER_BAUD_RATES];
#define MC68681_BAUD_NOT_VALID 0xFF
extern mc68681_baud_t
mc68681_baud_rate_table[4][RTEMS_TERMIOS_NUMBER_BAUD_RATES];
/*
* Driver function table
*/
extern console_fns mc68681_fns;
extern console_fns mc68681_fns_polled;
/*
* Default register access routines
*/
unsigned8 mc68681_get_register( /* registers are at 1 byte boundaries */
unsigned32 ulCtrlPort, /* and accessed as bytes */
unsigned8 ucRegNum
);
void mc68681_set_register(
unsigned32 ulCtrlPort,
unsigned8 ucRegNum,
unsigned8 ucData
);
unsigned8 mc68681_get_register_2( /* registers are at 2 byte boundaries */
unsigned32 ulCtrlPort, /* and accessed as bytes */
unsigned8 ucRegNum
);
void mc68681_set_register_2(
unsigned32 ulCtrlPort,
unsigned8 ucRegNum,
unsigned8 ucData
);
unsigned8 mc68681_get_register_4( /* registers are at 4 byte boundaries */
unsigned32 ulCtrlPort, /* and accessed as bytes */
unsigned8 ucRegNum
);
void mc68681_set_register_4(
unsigned32 ulCtrlPort,
unsigned8 ucRegNum,
unsigned8 ucData
);
unsigned8 mc68681_get_register_8( /* registers are at 8 byte boundaries */
unsigned32 ulCtrlPort, /* and accessed as bytes */
unsigned8 ucRegNum
);
void mc68681_set_register_8(
unsigned32 ulCtrlPort,
unsigned8 ucRegNum,
unsigned8 ucData
);
#ifdef __cplusplus
}
#endif
#endif /* _MC68681_H_ */
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