giorawinterrupt.c
1.2 KB
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
/**************************************************************************
* *
* Copyright (C) 1994, Silicon Graphics, Inc. *
* *
* These coded instructions, statements, and computer programs contain *
* unpublished proprietary information of Silicon Graphics, Inc., and *
* are protected by Federal copyright law. They may not be disclosed *
* to third parties or copied or duplicated in any form, in whole or *
* in part, without the prior written consent of Silicon Graphics, Inc. *
* *
**************************************************************************/
#include "osint.h"
#include "piint.h"
#include "rcp.h"
/*
* Name: __osGIORawInterrupt
*
* Description:
* Interrupt the Indy host with specified value
*
* Note:
* Only the low 6 bits are valid
*/
void
__osGIORawInterrupt(s32 value)
{
register u32 stat;
stat = IO_READ(PI_STATUS_REG);
while (stat & (PI_STATUS_IO_BUSY | PI_STATUS_DMA_BUSY)) {
stat = IO_READ(PI_STATUS_REG);
}
IO_WRITE(GIO_GIO_INTR_REG, value);
stat = IO_READ(PI_STATUS_REG);
while (stat & (PI_STATUS_IO_BUSY | PI_STATUS_DMA_BUSY)) {
stat = IO_READ(PI_STATUS_REG);
}
}