blob: 6e7b5d3494c6e9b3f2ae8b9e83e613b8184751d9 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* 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).
*
* 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.
*/
#include <rtems.h>
#include <libchip/z85c30.h>
#ifndef _Z85C30_MULTIPLIER
#define _Z85C30_MULTIPLIER 1
#define _Z85C30_NAME(_X) _X
#define _Z85C30_TYPE uint8_t
#endif
/*
* Z85C30 Get Register Routine
*/
uint8_t _Z85C30_NAME(z85c30_get_register)(
uintptr_t ulCtrlPort,
uint8_t ucRegNum
)
{
_Z85C30_TYPE *port;
uint8_t data;
rtems_interrupt_level level;
port = (_Z85C30_TYPE *)ulCtrlPort;
rtems_interrupt_disable(level);
if(ucRegNum) {
*port = ucRegNum;
}
data = *port;
rtems_interrupt_enable(level);
return data;
}
/*
* Z85C30 Set Register Routine
*/
void _Z85C30_NAME(z85c30_set_register)(
uintptr_t ulCtrlPort,
uint8_t ucRegNum,
uint8_t ucData
)
{
_Z85C30_TYPE *port;
rtems_interrupt_level level;
port = (_Z85C30_TYPE *)ulCtrlPort;
rtems_interrupt_disable(level);
if(ucRegNum) {
*port = ucRegNum;
}
*port = ucData;
rtems_interrupt_enable(level);
}
|
