voicecontread36.c
2.92 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
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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
/*---------------------------------------------------------------------
Copyright (C) 1997,1998 Nintendo.
File miccontread36.c
Coded by Koji Mitsunari. Apr 22, 1998.
Modified by Koji Mitsunari. Jun 22, 1998.
Comments Voice Recognition Board
$Id: voicecontread36.c,v 1.2 2003/03/25 20:42:04 blythe Exp $
---------------------------------------------------------------------*/
/**************************************************************************
*
* $Revision: 1.2 $
* $Date: 2003/03/25 20:42:04 $
* $Source:
*
**************************************************************************/
#include "osint.h"
#include "controller.h"
#include "siint.h"
#define VOICE_DATA_SIZE 36
#ifndef BBPLAYER
s32
__osVoiceContRead36(OSMesgQueue *mq, int channel, u16 address, u8 *buffer)
{
s32 ret = 0;
u8 status;
int i;
u8 *ptr;
int retry = 2;
/* Block to get resource token */
__osSiGetAccess();
do { /* Retry if ADRS/DATA CRC error */
ptr = (u8 *)(&__osPfsPifRam);
if (__osContLastCmd != CONT_VOICE_READ36
|| __osPfsLastChannel != channel) {
__osContLastCmd = CONT_VOICE_READ36;
__osPfsLastChannel = channel;
/* Set up request command format for all channels */
for (i = 0; i < channel; i++) *ptr++ = 0;
/* set format flag */
__osPfsPifRam.pifstatus = CONT_FORMAT;
/* Setup ram read format */
((__OSVoiceRead36Format *)ptr)->dummy = 0xff;
((__OSVoiceRead36Format *)ptr)->txsize = 3;
((__OSVoiceRead36Format *)ptr)->rxsize = VOICE_DATA_SIZE+1;
((__OSVoiceRead36Format *)ptr)->cmd = CONT_VOICE_READ36;
((__OSVoiceRead36Format *)ptr)->datacrc = 0xff;
/* setup ram read format */
ptr[sizeof(__OSVoiceRead36Format)] = FORMAT_END;
} else {
ptr += channel;
}
((__OSVoiceRead36Format *)ptr)->addrh = (u8)(address >>3);
((__OSVoiceRead36Format *)ptr)->addrl =
(u8)( (address << 5) | __osContAddressCrc(address)) ;
ret = __osSiRawStartDma(OS_WRITE, &__osPfsPifRam);
(void)osRecvMesg(mq, (OSMesg *)NULL, OS_MESG_BLOCK);
/* trigger pifmacro */
ret = __osSiRawStartDma(OS_READ, &__osPfsPifRam);
(void)osRecvMesg(mq, (OSMesg *)NULL, OS_MESG_BLOCK);
ret = (s32)((((__OSVoiceRead36Format *)ptr)->rxsize & CON_ERR_MASK) >> 4);
if (ret == 0) {
#if 0
bcopy(((__OSVoiceRead36Format *)ptr)->data, buffer, VOICE_DATA_SIZE);
#else
/* check data CRC */
if (__osVoiceContDataCrc(((__OSVoiceRead36Format *)ptr)->data,
VOICE_DATA_SIZE) !=
((__OSVoiceRead36Format *)ptr)->datacrc) {
/* reset status */
if ((ret = __osVoiceGetStatus(mq, channel, &status)) != 0){
break;
} else {
ret = CONT_ERR_CONTRFAIL;
}
} else {
bcopy(((__OSVoiceRead36Format *)ptr)->data, buffer, VOICE_DATA_SIZE);
}
#endif
} else {
ret = CONT_ERR_NO_CONTROLLER;
}
} while ((ret == CONT_ERR_CONTRFAIL) && (retry-- >= 0));
__osSiRelAccess();
return(ret);
}
#endif