void calculate_speed(void* dst, u32 len, u32 *speed)
{
tb_t start, end;
mftb(&start);
device_frag_read(dst, len, 0);
mftb(&end);
*speed = tb_diff_usec(&end, &start);
}
void dvd_read_patched_section() {
// Check if this read offset+size lies in our patched area, if so, we write a 0xE000 cmd to the drive and read from SDGecko.
volatile unsigned long* dvd = (volatile unsigned long*)0xCC006000;
u32 dst = dvd[5];
u32 len = dvd[4];
u32 offset = (dvd[3]<<2);
int ret = 0;
#ifdef DEBUG
usb_sendbuffer_safe("New Read: ",10);
print_read((void*)dst,len,offset);
#endif
// If it doesn't let the value about to be passed to the DVD drive be DVD_DMA | DVD_START
if((ret=is_frag_read(offset, len))) {
#ifdef DEBUG
if(ret == 2) {
usb_sendbuffer_safe("SPLIT FRAG\r\n",12);
}
usb_sendbuffer_safe("FRAG READ!\r\n",12);
#endif
device_frag_read((void*)(dst | 0x80000000), len, offset);
dcache_flush_icache_inv((void*)(dst | 0x80000000), len);
dvd[3] = 0;
dvd[4] = 0x20;
dvd[5] = 0;
dvd[6] = 0x20;
dvd[7] = 3;
}
else {
#ifdef DEBUG
usb_sendbuffer_safe("NORM READ!\r\n",12);
#endif
dvd[7] = 3; // DVD_DMA | DVD_START
}
}
