diff options
Diffstat (limited to 'c/src/lib/libchip/serial/z85c30_reg.c')
-rw-r--r-- | c/src/lib/libchip/serial/z85c30_reg.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/c/src/lib/libchip/serial/z85c30_reg.c b/c/src/lib/libchip/serial/z85c30_reg.c new file mode 100644 index 0000000000..af1f761db8 --- /dev/null +++ b/c/src/lib/libchip/serial/z85c30_reg.c @@ -0,0 +1,103 @@ +/* + * This file contains a typical set of register access routines which may be + * used with the z85c30 chip if accesses to the chip are as follows: + * + * + registers are accessed as bytes + * + * COPYRIGHT (c) 1989-1997. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * 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. + * + * $Id$ + */ + +#include <rtems.h> + +#ifndef _Z85C30_MULTIPLIER +#define _Z85C30_MULTIPLIER 1 +#define _Z85C30_NAME(_X) _X +#define _Z85C30_TYPE unsigned8 +#endif + +/* + * Z85C30 Get Register Routine + */ + +unsigned8 _Z85C30_NAME(z85c30_get_register)( + unsigned32 ulCtrlPort, + unsigned8 ucRegNum +) +{ + _Z85C30_TYPE *port; + unsigned8 data; + rtems_interrupt_level level; + + port = (_Z85C30_TYPE *)ulCtrlPort; + + rtems_interrupt_disable(level); + + if(ucRegNum) { + *port = ucRegNum; + } + data = *port; + rtems_interrupt_disable(level); + + return data; +} + +/* + * Z85C30 Set Register Routine + */ + +void _Z85C30_NAME(z85c30_set_register)( + unsigned32 ulCtrlPort, + unsigned8 ucRegNum, + unsigned8 ucData +) +{ + _Z85C30_TYPE *port; + rtems_interrupt_level level; + + port = (_Z85C30_TYPE *)ulCtrlPort; + + rtems_interrupt_disable(level); + if(ucRegNum) { + *port = ucRegNum; + } + *port = ucData; + rtems_interrupt_disable(level); +} + + +/* + * Z85C30 Get Data Routine + */ + +unsigned8 _Z85C30_NAME(z85c30_get_data)( + unsigned32 ulDataPort +) +{ + _Z85C30_TYPE *port; + + port = (_Z85C30_TYPE *)ulDataPort; + return *port; +} + +/* + * Z85C30 Set Data Routine + */ + +void _Z85C30_NAME(z85c30_set_data)( + unsigned32 ulDataPort, + unsigned8 ucData +) +{ + _Z85C30_TYPE *port; + + port = (_Z85C30_TYPE *)ulDataPort; + *port = ucData; +} |