4.104.114.84.95
Last change
on this file since c14a619 was
c14a619,
checked in by Joel Sherrill <joel.sherrill@…>, on 07/18/98 at 18:35:34
|
Removed use of data port for z8530.
Move some code around.
|
-
Property mode set to
100644
|
File size:
1.4 KB
|
Rev | Line | |
---|
[8414c033] | 1 | /* |
---|
| 2 | * This file contains a typical set of register access routines which may be |
---|
| 3 | * used with the z85c30 chip if accesses to the chip are as follows: |
---|
| 4 | * |
---|
| 5 | * + registers are accessed as bytes |
---|
| 6 | * |
---|
| 7 | * COPYRIGHT (c) 1989-1997. |
---|
| 8 | * On-Line Applications Research Corporation (OAR). |
---|
| 9 | * Copyright assigned to U.S. Government, 1994. |
---|
| 10 | * |
---|
| 11 | * The license and distribution terms for this file may be |
---|
| 12 | * found in the file LICENSE in this distribution or at |
---|
| 13 | * http://www.OARcorp.com/rtems/license.html. |
---|
| 14 | * |
---|
| 15 | * $Id$ |
---|
| 16 | */ |
---|
| 17 | |
---|
| 18 | #include <rtems.h> |
---|
| 19 | |
---|
| 20 | #ifndef _Z85C30_MULTIPLIER |
---|
| 21 | #define _Z85C30_MULTIPLIER 1 |
---|
| 22 | #define _Z85C30_NAME(_X) _X |
---|
| 23 | #define _Z85C30_TYPE unsigned8 |
---|
| 24 | #endif |
---|
| 25 | |
---|
| 26 | /* |
---|
| 27 | * Z85C30 Get Register Routine |
---|
| 28 | */ |
---|
| 29 | |
---|
| 30 | unsigned8 _Z85C30_NAME(z85c30_get_register)( |
---|
| 31 | unsigned32 ulCtrlPort, |
---|
| 32 | unsigned8 ucRegNum |
---|
| 33 | ) |
---|
| 34 | { |
---|
| 35 | _Z85C30_TYPE *port; |
---|
| 36 | unsigned8 data; |
---|
| 37 | rtems_interrupt_level level; |
---|
| 38 | |
---|
| 39 | port = (_Z85C30_TYPE *)ulCtrlPort; |
---|
| 40 | |
---|
| 41 | rtems_interrupt_disable(level); |
---|
| 42 | |
---|
| 43 | if(ucRegNum) { |
---|
| 44 | *port = ucRegNum; |
---|
| 45 | } |
---|
| 46 | data = *port; |
---|
| 47 | rtems_interrupt_disable(level); |
---|
| 48 | |
---|
| 49 | return data; |
---|
| 50 | } |
---|
| 51 | |
---|
| 52 | /* |
---|
| 53 | * Z85C30 Set Register Routine |
---|
| 54 | */ |
---|
| 55 | |
---|
| 56 | void _Z85C30_NAME(z85c30_set_register)( |
---|
| 57 | unsigned32 ulCtrlPort, |
---|
| 58 | unsigned8 ucRegNum, |
---|
| 59 | unsigned8 ucData |
---|
| 60 | ) |
---|
| 61 | { |
---|
| 62 | _Z85C30_TYPE *port; |
---|
| 63 | rtems_interrupt_level level; |
---|
| 64 | |
---|
| 65 | port = (_Z85C30_TYPE *)ulCtrlPort; |
---|
| 66 | |
---|
| 67 | rtems_interrupt_disable(level); |
---|
| 68 | if(ucRegNum) { |
---|
| 69 | *port = ucRegNum; |
---|
| 70 | } |
---|
| 71 | *port = ucData; |
---|
| 72 | rtems_interrupt_disable(level); |
---|
| 73 | } |
---|
Note: See
TracBrowser
for help on using the repository browser.