controller.c
5.13 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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
/**************************************************************************
* *
* Copyright (C) 1995, 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* unpublished proprietary information of Silicon Graphics, Inc., and *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 "controller.h"
#include "siint.h"
#ifdef BBPLAYER
#include "bbint.h"
#endif
#if __GNUC__
OSPifRam __osContPifRam __attribute__((aligned (16)));
#else
OSPifRam __osContPifRam; /* PIF RAM buffer */
#endif
u8 __osContLastCmd; /* last pifmacro command */
u8 __osMaxControllers; /* # of connected controllers */
OSTimer __osEepromTimer;
OSMesgQueue __osEepromTimerQ;
OSMesg __osEepromTimerMsg;
int __osContinitialized=0;
/*
* This call resets all the controllers and returns
* a bit pattern to indicate which controllers are connected.
* It also returns controller's type and status for all the connected
* controllers
*/
s32
osContInit(OSMesgQueue *mq, u8 *bitpattern, OSContStatus *data)
{
OSMesg dummy;
s32 ret = 0;
OSTime t;
OSTimer mytimer;
OSMesgQueue timerMesgQueue;
if (__osContinitialized != 0)
return(0);
__osContinitialized = 1;
/* need to wait for .5 sec */
t = osGetTime();
if (t < OS_USEC_TO_CYCLES(500000)) {
osCreateMesgQueue(&timerMesgQueue, &dummy, 1);
osSetTimer(&mytimer,OS_USEC_TO_CYCLES(500000)-t, 0,
&timerMesgQueue,&dummy);
(void)osRecvMesg(&timerMesgQueue, &dummy, OS_MESG_BLOCK);
}
__osMaxControllers = MAXCONTROLLERS;
/* Set up request command format for all channels */
__osPackRequestData(CONT_REQUEST);
ret = __osSiRawStartDma(OS_WRITE, &__osContPifRam);
(void)osRecvMesg(mq, &dummy, OS_MESG_BLOCK);
/* trigger pifmacro */
ret = __osSiRawStartDma(OS_READ, &__osContPifRam);
(void)osRecvMesg(mq, &dummy, OS_MESG_BLOCK);
/* reformat the 64 bytes RAM data and save in data array */
__osContGetInitData(bitpattern, data);
/*
* Always make the last command an illegal one, so we never optimize
* out the DMA write
*/
__osContLastCmd = CONT_SETCH - 1;
__osSiCreateAccessQueue();
osCreateMesgQueue(&__osEepromTimerQ, &__osEepromTimerMsg, 1);
return(ret);
}
/*
* Reformat the 64 bytes RAM data into RequestData format
* and check error code.
*/
void
__osContGetInitData(u8 *pattern, OSContStatus *data)
{
u8 *ptr;
__OSContRequesFormat requestformat;
int i;
u8 bits = 0;
ptr = (u8 *)(&__osContPifRam);
for (i = 0; i < __osMaxControllers; i++,
ptr += sizeof(requestformat), data++) {
/* read request format for all the channel */
requestformat = *((__OSContRequesFormat *)ptr);
#ifndef _HW_VERSION_1
data->errno = (u8)((requestformat.rxsize & CON_ERR_MASK) >> 4);
#else
data->errno = (u8)(((requestformat.txsize & CON_ERR_MASK) >> 4)
| ((requestformat.rxsize & CON_ERR_MASK) >> 6));
#endif
if (data->errno)
continue;
#ifdef BBPLAYER
/*XXXblythe hack to disable controllers*/
if (0 && __osBbIsBb && (__osBbHackFlags & (1<<i))) {
data->errno = CONT_NO_RESPONSE_ERROR;
continue;
}
#endif
data->type =(u16)((requestformat.typel<<8)|requestformat.typeh);
#ifdef BBPLAYER
data->status = CONT_CARD_ON & (__osBbPakAddress[i]!=0);
#else
data->status = requestformat.status;
#endif
bits |= (1<<i);
}
#ifdef BBPLAYER
if (__osBbIsBb && __osBbHackFlags) {
OSContStatus tmp;
bits = (bits & ~(1|(1<<__osBbHackFlags))) | ((bits & 1) << __osBbHackFlags) | ((bits & (1<<__osBbHackFlags)) >> __osBbHackFlags);
data -= __osMaxControllers;
tmp = data[0];
data[0] = data[__osBbHackFlags];
data[__osBbHackFlags] = tmp;
}
#endif
*pattern = bits;
}
void
__osPackRequestData(u8 cmd)
{
u8 *ptr;
__OSContRequesFormat requestformat;
int i;
/* clear pif ram */
for (i = 0; i < PIFRAMSIZE-1 ; i++)
__osContPifRam.ramarray[i] = 0;
#ifndef _HW_VERSION_1
__osContPifRam.pifstatus = CONT_FORMAT;
#else
__osContPifRam.pifstatus = 0;
#endif
ptr = (u8 *)(&__osContPifRam);
/* Setup request format for each channel */
requestformat.dummy = 0xff;
requestformat.txsize = 1;
requestformat.rxsize = 3;
requestformat.cmd = cmd;
requestformat.typeh = 0xff;
requestformat.typel = 0xff;
requestformat.status = 0xff;
requestformat.dummy1 = 0xff;
for (i = 0; i < __osMaxControllers; i++) {
/* setup request format for all the channel */
*((__OSContRequesFormat *)ptr) = requestformat;
ptr += sizeof(requestformat);
}
#ifndef _HW_VERSION_1
*((u8 *)ptr) = FORMAT_END;
#endif
}