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#include "libultra_internal.h"
#include "hardware.h"
#include "new_func.h"
#include <PR/R4300.h>
//! @todo This define is from piint.h, but including that causes problems...
#define UPDATE_REG(reg, var) \
if (cHandle->var != pihandle->var) \
IO_WRITE(reg, pihandle->var);
//! @todo This define is from os.h, but including that causes problems...
#define PI_DOMAIN1 0
//! @todo These defines are from PR/rcp.h, but including that causes problems...
#define IO_WRITE(addr, data) (*(vu32*) PHYS_TO_K1(addr) = (u32) (data))
s32 osEPiRawStartDma(OSPiHandle* pihandle, s32 dir, u32 cart_addr, void* dram_addr, u32 size) {
register int status;
status = HW_REG(PI_STATUS_REG, u32);
while (status & PI_STATUS_ERROR) {
status = HW_REG(PI_STATUS_REG, u32);
}
HW_REG(PI_DRAM_ADDR_REG, void*) = (void*) osVirtualToPhysical(dram_addr);
HW_REG(PI_CART_ADDR_REG, void*) = (void*) (((uintptr_t) pihandle->baseAddress | cart_addr) & 0x1fffffff);
switch (dir) {
case OS_READ:
HW_REG(PI_WR_LEN_REG, u32) = size - 1;
break;
case OS_WRITE:
HW_REG(PI_RD_LEN_REG, u32) = size - 1;
break;
default:
return -1;
}
return 0;
}
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