jv.c

/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright ps2dev - http://www.ps2dev.org
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#include "acjv_internal.h"
 
int acJvRead(acJvAddr addr, void *buf, int size)
{
    acJvReg src;
    int i;
 
    src = (acJvReg)(2 * (addr & 0x3FFF) + 0xB2400000);
    for ( i = size; i > 0; buf = (acUint8 *)buf + 1 )
    {
        --i;
        *(acUint8 *)buf = *src++;
    }
    return size - i;
}
 
int acJvWrite(acJvAddr addr, void *buf, int size)
{
    acJvReg dst;
    int i;
 
    dst = (acJvReg)(2 * (addr & 0x3FFF) + 0xB2400000);
    for ( i = size; i > 0; ++dst )
    {
        --i;
        *dst = *(acUint8 *)buf;
        buf = (acUint8 *)buf + 1;
    }
    return size - i;
}
 
int acJvGet(acJvAddr addr)
{
    return ((*(volatile acUint16 *)(2 * (addr & 0x3FFF) + 0xB2400000 + 2) << 8) & 0xFF)
             | ((*(volatile acUint16 *)(2 * (addr & 0x3FFF) + 0xB2400000)) & 0xFF);
}
 
int acJvPut(acJvAddr addr, int value)
{
    volatile acUint16 *v3;
 
    v3 = (volatile acUint16 *)(2 * (addr & 0x3FFF) + 0xB2400000);
    *v3 = value;
    v3[1] = value >> 8;
    return value;
}
 
int acJvModuleStart(int argc, char **argv)
{
    (void)argc;
    (void)argv;
 
    *((volatile acUint16 *)0xB2416002) = 0;
    return 0;
}
 
int acJvModuleStop()
{
    *((volatile acUint16 *)0xB2416000) = 0;
    return 0;
}
 
int acJvModuleRestart(int argc, char **argv)
{
    (void)argc;
    (void)argv;
 
    return -88;
}
 
int acJvModuleStatus()
{
    return -88;
}