src/os/osPfsInit.c


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

#include "libultra_internal.h"
#include "controller.h"

// osPfsInit
s32 osPfsInit(OSMesgQueue* queue, OSPfs* pfs, int channel) {
    s32 ret;
    ret = 0;

    __osSiGetAccess();
    ret = __osPfsGetStatus(queue, channel);
    __osSiRelAccess();
    if (ret != 0) {
        return ret;
    }

    pfs->queue = queue;
    pfs->channel = channel;
    pfs->status = 0;
    ERRCK(__osGetId(pfs));

    ret = osPfsChecker(pfs);
    pfs->status |= PFS_INITIALIZED;
    return ret;
}

// __osPfsGetStatus
s32 __osPfsGetStatus(OSMesgQueue* queue, int channel) {
    s32 ret;
    OSMesg dummy;
    u8 pattern;
    OSContStatus data[MAXCONTROLLERS];

    ret = 0;
    __osPfsRequestData(0);
    ret = __osSiRawStartDma(OS_WRITE, &__osPfsPifRam);
    osRecvMesg(queue, &dummy, OS_MESG_BLOCK);
    ret = __osSiRawStartDma(OS_READ, &__osPfsPifRam);
    osRecvMesg(queue, &dummy, OS_MESG_BLOCK);
    __osPfsGetInitData(&pattern, &data[0]);

    if (((data[channel].status & CONT_CARD_ON) != 0) && ((data[channel].status & CONT_CARD_PULL) != 0)) {
        return PFS_ERR_NEW_PACK;
    }
    if ((data[channel].errnum != 0) || ((data[channel].status & CONT_CARD_ON) == 0)) {
        return PFS_ERR_NOPACK;
    }
    if ((data[channel].status & CONT_ADDR_CRC_ER) != 0) {
        return PFS_ERR_CONTRFAIL;
    }
    return ret;
}