mirror of https://github.com/bsnes-emu/bsnes.git
147 lines
3.2 KiB
C++
147 lines
3.2 KiB
C++
#pragma once
|
|
|
|
#include <nall/nall.hpp>
|
|
#include <nall/serial.hpp>
|
|
using namespace nall;
|
|
|
|
using int8 = Integer< 8>;
|
|
using int16 = Integer<16>;
|
|
using int24 = Integer<24>;
|
|
using int32 = Integer<32>;
|
|
using int64 = Integer<64>;
|
|
|
|
using uint8 = Natural< 8>;
|
|
using uint16 = Natural<16>;
|
|
using uint24 = Natural<24>;
|
|
using uint32 = Natural<32>;
|
|
using uint64 = Natural<64>;
|
|
|
|
struct FX {
|
|
auto open(vector<string> arguments) -> bool;
|
|
auto close() -> void;
|
|
auto readable() -> bool;
|
|
auto read() -> uint8_t;
|
|
auto writable() -> bool;
|
|
auto write(uint8_t data) -> void;
|
|
|
|
auto read(uint offset, uint length) -> vector<uint8_t>;
|
|
auto write(uint offset, const void* buffer, uint length) -> void;
|
|
auto write(uint offset, const vector<uint8_t>& buffer) -> void { write(offset, buffer.data(), buffer.size()); }
|
|
auto execute(uint offset) -> void;
|
|
|
|
auto read(uint offset) -> uint8_t;
|
|
auto write(uint offset, uint8_t data) -> void;
|
|
|
|
serial device;
|
|
};
|
|
|
|
auto FX::open(vector<string> arguments) -> bool {
|
|
//device name override support
|
|
string name;
|
|
for(auto argument : arguments) {
|
|
if(argument.beginsWith("--device=")) {
|
|
name = argument.trimLeft("--device=", 1L);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(!device.open(name)) {
|
|
print("[21fx] error: unable to open hardware device\n");
|
|
return false;
|
|
}
|
|
|
|
//flush the device (to clear floating inputs)
|
|
while(true) {
|
|
while(readable()) read();
|
|
auto iplrom = read(0x2184, 122);
|
|
auto sha256 = Hash::SHA256(iplrom).digest();
|
|
if(sha256 == "41b79712a4a2d16d39894ae1b38cde5c41dad22eadc560df631d39f13df1e4b9") break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
auto FX::close() -> void {
|
|
device.close();
|
|
}
|
|
|
|
auto FX::readable() -> bool {
|
|
return device.readable();
|
|
}
|
|
|
|
//1000ns delay avoids burning CPU core at 100%; does not slow down max transfer rate at all
|
|
auto FX::read() -> uint8_t {
|
|
while(!readable()) usleep(1000);
|
|
uint8_t buffer[1] = {0};
|
|
device.read(buffer, 1);
|
|
return buffer[0];
|
|
}
|
|
|
|
auto FX::writable() -> bool {
|
|
return device.writable();
|
|
}
|
|
|
|
auto FX::write(uint8_t data) -> void {
|
|
while(!writable()) usleep(1000);
|
|
uint8_t buffer[1] = {data};
|
|
device.write(buffer, 1);
|
|
}
|
|
|
|
//
|
|
|
|
auto FX::read(uint offset, uint length) -> vector<uint8_t> {
|
|
write(0x21);
|
|
write(0x66);
|
|
write(0x78);
|
|
write(offset >> 16);
|
|
write(offset >> 8);
|
|
write(offset >> 0);
|
|
write(0x01);
|
|
write(length >> 8);
|
|
write(length >> 0);
|
|
write(0x00);
|
|
|
|
vector<uint8_t> buffer;
|
|
while(length--) buffer.append(read());
|
|
return buffer;
|
|
}
|
|
|
|
auto FX::write(uint offset, const void* data, uint length) -> void {
|
|
write(0x21);
|
|
write(0x66);
|
|
write(0x78);
|
|
write(offset >> 16);
|
|
write(offset >> 8);
|
|
write(offset >> 0);
|
|
write(0x01);
|
|
write(length >> 8);
|
|
write(length >> 0);
|
|
write(0x01);
|
|
|
|
auto buffer = (uint8_t*)data;
|
|
for(auto n : range(length)) write(buffer[n]);
|
|
write(0x00);
|
|
}
|
|
|
|
auto FX::execute(uint offset) -> void {
|
|
write(0x21);
|
|
write(0x66);
|
|
write(0x78);
|
|
write(offset >> 16);
|
|
write(offset >> 8);
|
|
write(offset >> 0);
|
|
write(0x00);
|
|
}
|
|
|
|
//
|
|
|
|
auto FX::read(uint offset) -> uint8_t {
|
|
auto buffer = read(offset, 1);
|
|
return buffer[0];
|
|
}
|
|
|
|
auto FX::write(uint offset, uint8_t data) -> void {
|
|
vector<uint8_t> buffer = {data};
|
|
write(offset, buffer);
|
|
}
|