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Diffstat (limited to 'include/libchip/mc68681.h')
| -rw-r--r-- | include/libchip/mc68681.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/include/libchip/mc68681.h b/include/libchip/mc68681.h new file mode 100644 index 0000000000..ec58318dab --- /dev/null +++ b/include/libchip/mc68681.h @@ -0,0 +1,120 @@ +/* + * + * 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.rtems.org/license/LICENSE. + */ + +#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 const console_fns mc68681_fns; +extern const console_fns mc68681_fns_polled; + +/* + * Default register access routines + */ + +uint8_t mc68681_get_register( /* registers are at 1 byte boundaries */ + uintptr_t ulCtrlPort, /* and accessed as bytes */ + uint8_t ucRegNum +); + +void mc68681_set_register( + uintptr_t ulCtrlPort, + uint8_t ucRegNum, + uint8_t ucData +); + +uint8_t mc68681_get_register_2( /* registers are at 2 byte boundaries */ + uintptr_t ulCtrlPort, /* and accessed as bytes */ + uint8_t ucRegNum +); + +void mc68681_set_register_2( + uintptr_t ulCtrlPort, + uint8_t ucRegNum, + uint8_t ucData +); + +uint8_t mc68681_get_register_4( /* registers are at 4 byte boundaries */ + uintptr_t ulCtrlPort, /* and accessed as bytes */ + uint8_t ucRegNum +); + +void mc68681_set_register_4( + uintptr_t ulCtrlPort, + uint8_t ucRegNum, + uint8_t ucData +); + +uint8_t mc68681_get_register_8( /* registers are at 8 byte boundaries */ + uintptr_t ulCtrlPort, /* and accessed as bytes */ + uint8_t ucRegNum +); + +void mc68681_set_register_8( + uintptr_t ulCtrlPort, + uint8_t ucRegNum, + uint8_t ucData +); + + +#ifdef __cplusplus +} +#endif + +#endif /* _MC68681_H_ */ |