forked from Imagelibrary/rtems
142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MC68681_H_
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#define _MC68681_H_
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#include <rtems/termiostypes.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* These are just used in the interface between this driver and
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* the read/write register routines when accessing the first
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* control port.
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*/
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#define MC68681_STATUS 1
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#define MC68681_RX_BUFFER 3
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#define MC68681_MODE 0
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#define MC68681_CLOCK_SELECT 1
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#define MC68681_COMMAND 2
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#define MC68681_TX_BUFFER 3
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/*
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* Data Port bit map configuration
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*
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* D0 : Baud Rate Set Selection
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* D1 - D2 : Extended Baud Rate Setting
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*/
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#define MC68681_DATA_BAUD_RATE_SET_1 0 /* ACR[7] = 0 */
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#define MC68681_DATA_BAUD_RATE_SET_2 1 /* ACR[7] = 1 */
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#define MC68681_XBRG_IGNORED (0 << 1)
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#define MC68681_XBRG_ENABLED (1 << 1)
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#define MC68681_XBRG_DISABLED (2 << 1)
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#define MC68681_XBRG_MASK (3 << 1)
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/*
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* Custom baud rate table information
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*/
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typedef unsigned char mc68681_baud_t;
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typedef mc68681_baud_t mc68681_baud_table_t[RTEMS_TERMIOS_NUMBER_BAUD_RATES];
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#define MC68681_BAUD_NOT_VALID 0xFF
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extern mc68681_baud_t
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mc68681_baud_rate_table[4][RTEMS_TERMIOS_NUMBER_BAUD_RATES];
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/*
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* Driver function table
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*/
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extern const console_fns mc68681_fns;
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extern const console_fns mc68681_fns_polled;
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/*
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* Default register access routines
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*/
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uint8_t mc68681_get_register( /* registers are at 1 byte boundaries */
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uintptr_t ulCtrlPort, /* and accessed as bytes */
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uint8_t ucRegNum
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);
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void mc68681_set_register(
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uintptr_t ulCtrlPort,
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uint8_t ucRegNum,
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uint8_t ucData
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);
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uint8_t mc68681_get_register_2( /* registers are at 2 byte boundaries */
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uintptr_t ulCtrlPort, /* and accessed as bytes */
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uint8_t ucRegNum
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);
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void mc68681_set_register_2(
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uintptr_t ulCtrlPort,
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uint8_t ucRegNum,
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uint8_t ucData
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);
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uint8_t mc68681_get_register_4( /* registers are at 4 byte boundaries */
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uintptr_t ulCtrlPort, /* and accessed as bytes */
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uint8_t ucRegNum
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);
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void mc68681_set_register_4(
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uintptr_t ulCtrlPort,
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uint8_t ucRegNum,
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uint8_t ucData
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);
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uint8_t mc68681_get_register_8( /* registers are at 8 byte boundaries */
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uintptr_t ulCtrlPort, /* and accessed as bytes */
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uint8_t ucRegNum
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);
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void mc68681_set_register_8(
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uintptr_t ulCtrlPort,
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uint8_t ucRegNum,
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uint8_t ucData
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);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _MC68681_H_ */
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