mirror of https://github.com/AxioDL/metaforce.git
Started test utility for emulating client_pad.bin GBA link
This commit is contained in:
Jack Andersen
parent
02a3b8a6e7
commit
6857239b15
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@ -111,6 +111,7 @@ set(CLIENT_SOURCES
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${CMAKE_SOURCE_DIR}/Editor/ProjectResourceFactoryMP1.cpp)
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add_subdirectory(Runtime)
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add_subdirectory(mpcksum)
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add_subdirectory(gbalink)
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unset(GIT_EXECUTABLE CACHE)
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find_package(Git)
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@ -0,0 +1,4 @@
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if (NOT WIN32)
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include_directories(. ./../Runtime ${ATHENA_INCLUDE_DIR})
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add_executable(gbalink main.cpp)
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endif()
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@ -0,0 +1,988 @@
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#include <stdio.h>
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#include "GCNTypes.hpp"
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#include <memory>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <netdb.h>
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#include <arpa/inet.h>
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#include <string>
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#include "hecl/hecl.hpp"
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namespace net
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{
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/** IP address class derived from SFML */
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class IPAddress
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{
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uint32_t m_address = 0;
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bool m_valid = false;
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void resolve(const std::string& address)
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{
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m_address = 0;
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m_valid = false;
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if (address == "255.255.255.255")
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{
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/* The broadcast address needs to be handled explicitly,
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* because it is also the value returned by inet_addr on error */
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m_address = INADDR_BROADCAST;
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m_valid = true;
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}
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else if (address == "0.0.0.0")
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{
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m_address = INADDR_ANY;
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m_valid = true;
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}
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else
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{
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/* Try to convert the address as a byte representation ("xxx.xxx.xxx.xxx") */
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uint32_t ip = inet_addr(address.c_str());
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if (ip != INADDR_NONE)
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{
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m_address = ip;
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m_valid = true;
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}
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else
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{
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/* Not a valid address, try to convert it as a host name */
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addrinfo hints;
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_INET;
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addrinfo* result = NULL;
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if (getaddrinfo(address.c_str(), NULL, &hints, &result) == 0)
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{
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if (result)
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{
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ip = reinterpret_cast<sockaddr_in*>(result->ai_addr)->sin_addr.s_addr;
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freeaddrinfo(result);
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m_address = ip;
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m_valid = true;
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}
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}
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}
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}
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}
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public:
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IPAddress(const std::string& address)
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{
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resolve(address);
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}
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uint32_t toInteger() const
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{
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return ntohl(m_address);
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}
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operator bool() const { return m_valid; }
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};
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/** Server-oriented TCP socket class derived from SFML */
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class Socket
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{
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int m_socket = -1;
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bool m_isBlocking;
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static sockaddr_in createAddress(uint32_t address, unsigned short port)
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{
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sockaddr_in addr;
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memset(&addr, 0, sizeof(addr));
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addr.sin_addr.s_addr = htonl(address);
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addr.sin_family = AF_INET;
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addr.sin_port = htons(port);
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#ifdef __APPLE__
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addr.sin_len = sizeof(addr);
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#endif
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return addr;
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}
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bool openSocket()
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{
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if (isOpen())
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return false;
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m_socket = socket(PF_INET, SOCK_STREAM, 0);
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if (m_socket == -1)
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{
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//err() << "Can't allocate socket" << std::endl;
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return false;
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}
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int one = 1;
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setsockopt(m_socket, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char*>(&one), sizeof(one));
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#ifdef __APPLE__
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setsockopt(m_socket, SOL_SOCKET, SO_NOSIGPIPE, reinterpret_cast<char*>(&one), sizeof(one));
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#endif
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setBlocking(m_isBlocking);
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return true;
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}
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void setRemoteSocket(int remSocket)
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{
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m_socket = remSocket;
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setBlocking(m_isBlocking);
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}
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public:
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Socket(bool blocking)
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: m_isBlocking(blocking) {}
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~Socket() { close(); }
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void setBlocking(bool blocking)
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{
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int status = fcntl(m_socket, F_GETFL);
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if (m_isBlocking)
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fcntl(m_socket, F_SETFL, status | ~O_NONBLOCK);
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else
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fcntl(m_socket, F_SETFL, status | O_NONBLOCK);
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}
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bool isOpen() const { return m_socket != -1; }
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bool openAndListen(const IPAddress& address, uint32_t port)
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{
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if (!openSocket())
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return false;
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sockaddr_in addr = createAddress(address.toInteger(), port);
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if (bind(m_socket, reinterpret_cast<sockaddr*>(&addr), sizeof(addr)) == -1)
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{
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/* Not likely to happen, but... */
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//err() << "Failed to bind listener socket to port " << port << std::endl;
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return false;
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}
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if (::listen(m_socket, 0) == -1)
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{
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/* Oops, socket is deaf */
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//err() << "Failed to listen to port " << port << std::endl;
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return false;
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}
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return true;
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}
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bool accept(Socket& remoteSocketOut)
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{
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if (!isOpen())
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return false;
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/* Accept a new connection */
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sockaddr_in address;
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socklen_t length = sizeof(address);
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int remoteSocket = ::accept(m_socket, reinterpret_cast<sockaddr*>(&address), &length);
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/* Check for errors */
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if (remoteSocket == -1)
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return false;
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/* Initialize the new connected socket */
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remoteSocketOut.close();
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remoteSocketOut.setRemoteSocket(remoteSocket);
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return true;
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}
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void close()
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{
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if (!isOpen())
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return;
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::close(m_socket);
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m_socket = -1;
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}
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ssize_t read(void* buf, size_t len)
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{
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return ::read(m_socket, buf, len);
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}
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ssize_t write(const void* buf, size_t len)
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{
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return ::write(m_socket, buf, len);
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}
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};
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}
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class CGBASupport
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{
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public:
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enum class EPhase
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{
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LoadClientPad,
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Standby,
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StartProbeTimeout,
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PollProbe,
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StartJoyBusBoot,
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PollJoyBusBoot,
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DataTransfer,
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Complete,
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Failed
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};
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private:
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u32 x28_fileSize;
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std::unique_ptr<u8[]> x2c_buffer;
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EPhase x34_phase = EPhase::LoadClientPad;
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float x38_timeout = 0.f;
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u8 x3c_status = 0;
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u32 x40_siChan = -1;
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bool x44_fusionLinked = false;
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bool x45_fusionBeat = false;
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static CGBASupport* SharedInstance;
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public:
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CGBASupport(const char* clientPadPath);
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~CGBASupport();
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bool PollResponse();
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void Update(float dt);
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bool IsReady();
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void InitializeSupport();
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void StartLink();
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EPhase GetPhase() const { return x34_phase; }
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bool IsFusionLinked() const { return x44_fusionLinked; }
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bool IsFusionBeat() const { return x45_fusionBeat; }
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};
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CGBASupport* CGBASupport::SharedInstance;
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net::Socket DataServer = {true};
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net::Socket DataSocket = {true};
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net::Socket ClockServer = {true};
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net::Socket ClockSocket = {true};
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static u64 GetGCTicks()
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{
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auto nanos = std::chrono::duration_cast<std::chrono::nanoseconds>(
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std::chrono::steady_clock::now().time_since_epoch()).count();
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return nanos * 486000000 / 1000000000;
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}
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#define GBA_JSTAT_MASK 0x3a
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#define GBA_JSTAT_FLAGS_SHIFT 4
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#define GBA_JSTAT_FLAGS_MASK 0x30
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#define GBA_JSTAT_PSF1 0x20
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#define GBA_JSTAT_PSF0 0x10
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#define GBA_JSTAT_SEND 0x08
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#define GBA_JSTAT_RECV 0x02
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#define GBA_READY 0
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#define GBA_NOT_READY 1
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#define GBA_BUSY 2
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#define GBA_JOYBOOT_UNKNOWN_STATE 3
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#define GBA_JOYBOOT_ERR_INVALID 4
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static void GBAInit()
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{
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DataServer.openAndListen(net::IPAddress("0.0.0.0"), 0xd6ba);
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printf("data listening\n");
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ClockServer.openAndListen(net::IPAddress("0.0.0.0"), 0xc10c);
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printf("clock listening\n");
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DataServer.accept(DataSocket);
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printf("data accepted\n");
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ClockServer.accept(ClockSocket);
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printf("clock accepted\n");
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}
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static s32 GBAGetProcessStatus(s32 chan, u8* percentp)
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{
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return GBA_READY;
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}
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static s32 GBAGetStatus(s32 chan, u8* status)
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{
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return GBA_READY;
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}
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static s32 GBAReset(s32 chan, u8* status)
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{
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return GBA_READY;
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}
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static s32 GBARead(s32 chan, u8* dst, u8* status)
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{
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return GBA_READY;
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}
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static s32 GBAWrite(s32 chan, u8* src, u8* status)
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{
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return GBA_READY;
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}
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static const u8 KawasedoLUT[] =
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{
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0x18, 0xFC, 0xC0, 0x80, 0x7F, 0x40, 0x3F, 0x01, 0x00, 0x2F,
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0x2F, 0x20, 0x43, 0x6F, 0x64, 0x65, 0x64, 0x20, 0x62, 0x79,
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0x20, 0x4B, 0x61, 0x77, 0x61, 0x73, 0x65, 0x64, 0x6F, 0x00,
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0x00, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0xAC, 0xC4,
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0xF8, 0x08, 0x10, 0xBF, 0x18, 0x00, 0x00, 0x00
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};
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/** Self-contained class for solving Kawasedo's GBA BootROM challenge.
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* GBA will boot client_pad.bin code on completion. */
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class CKawasedoChallenge
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{
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/** DSP-hosted HMAC function
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* Reference: https://github.com/dolphin-emu/dolphin/blob/master/Source/Core/Core/HW/DSPHLE/UCodes/GBA.cpp */
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struct DSPSecParms
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{
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union ShortAndLong
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{
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u16 s[2];
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u32 l;
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};
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ShortAndLong x0_gbaK1; /* Challenge key first read from GBA */
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ShortAndLong x4_pColor; /* Palette of Nintendo logo */
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ShortAndLong x8_pSpeed; /* Speed of logo pulsing */
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u32 xc_progLen; /* Length of program to boot */
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//u32* x10_resultsDest; /* Written to resK1 and resK2 instead */
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u32 x20_resK1; /* Transformed key */
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u32 x24_resMAC; /* Message authentication code */
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void ProcessGBACrypto()
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{
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// 32 bytes from mram addr to DRAM @ 0
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x0_gbaK1.l = hecl::SBig(x0_gbaK1.l);
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// This is the main decrypt routine
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u16 x11 = 0, x12 = 0, x20 = 0, x21 = 0, x22 = 0, x23 = 0;
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x20 = hecl::SBig(x0_gbaK1.s[0]) ^ 0x6f64;
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x21 = hecl::SBig(x0_gbaK1.s[1]) ^ 0x6573;
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s16 unk2 = (s8)x8_pSpeed.s[0];
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if (unk2 < 0)
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x11 = ((~unk2 + 3) << 1) | (x4_pColor.s[0] << 4);
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else if (unk2 == 0)
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x11 = (x4_pColor.s[0] << 1) | 0x70;
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else // unk2 > 0
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x11 = ((unk2 - 1) << 1) | (x4_pColor.s[0] << 4);
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s32 rounded_sub = ((xc_progLen + 7) & ~7) - 0x200;
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u16 size = (rounded_sub < 0) ? 0 : rounded_sub >> 3;
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u32 t = (((size << 16) | 0x3f80) & 0x3f80ffff) << 1;
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s16 t_low = (s8)(t >> 8);
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t += (t_low & size) << 16;
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x12 = t >> 16;
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x11 |= (size & 0x4000) >> 14;
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t = ((x11 & 0xff) << 16) + ((x12 & 0xff) << 16) + (x12 << 8);
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u16 final11 = 0, final12 = 0;
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final11 = x11 | ((t >> 8) & 0xff00) | 0x8080;
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final12 = x12 | 0x8080;
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if ((final12 & 0x200) != 0)
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{
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x22 = final11 ^ 0x6f64;
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x23 = final12 ^ 0x6573;
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}
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else
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{
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x22 = final11 ^ 0x6177;
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x23 = final12 ^ 0x614b;
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}
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// Send the result back to mram
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x20_resK1 = (x20 << 16) | x21;
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x24_resMAC = (x22 << 16) | x23;
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}
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} xf8_dspHmac;
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u32 m_chan;
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s32 x0_pColor;
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s32 x4_pSpeed;
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u8* x8_progPtr;
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u32 xc_progLen;
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u8* x10_statusPtr;
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void* x14_callback;
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u8 x18_readBuf[4];
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u8 x1c_writeBuf[4];
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u32 x20_xfMAC;
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u64 x28_ticksAfterXf;
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u32 x30_xfDone;
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u32 x34_secret;
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u32 x38_xfSecret;
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u32 x3c_[7];
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u32 x58_resK1;
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u32 x5c_resMAC;
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u32 x60_progChecksum;
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u32 x64_intermediateMAC;
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bool F23(u8 status)
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{
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if (status != GBA_READY || GBAReset(m_chan, x10_statusPtr) != GBA_READY)
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{
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x28_ticksAfterXf = 0;
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x14_callback = nullptr;
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return false;
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}
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return true;
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}
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bool F25(u8 status)
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{
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if (status != GBA_READY || *x10_statusPtr != KawasedoLUT[0x25] ||
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GBAGetStatus(m_chan, x10_statusPtr) != GBA_READY)
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{
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x28_ticksAfterXf = 0;
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x14_callback = nullptr;
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return false;
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}
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return true;
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}
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bool F27(u8 status)
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{
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if (status != GBA_READY || *x10_statusPtr != KawasedoLUT[0x0] ||
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GBARead(m_chan, x18_readBuf, x10_statusPtr) != GBA_READY)
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{
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x28_ticksAfterXf = 0;
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x14_callback = nullptr;
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return false;
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}
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return true;
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}
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bool F29(u8 status)
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{
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if (status != GBA_READY)
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{
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x28_ticksAfterXf = 0;
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x14_callback = nullptr;
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return false;
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}
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return true;
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}
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void GBAX02()
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{
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xf8_dspHmac.x0_gbaK1.l = reinterpret_cast<u32&>(x18_readBuf);
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xf8_dspHmac.x4_pColor.l = x0_pColor;
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xf8_dspHmac.x8_pSpeed.l = x4_pSpeed;
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xf8_dspHmac.xc_progLen = xc_progLen;
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xf8_dspHmac.ProcessGBACrypto();
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}
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bool GBAX01()
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{
|
||||
x58_resK1 = xf8_dspHmac.x20_resK1;
|
||||
x5c_resMAC = xf8_dspHmac.x24_resMAC;
|
||||
|
||||
x20_xfMAC = ~KawasedoLUT[0x24] & (KawasedoLUT[0x24] + xc_progLen);
|
||||
u32 tmp = KawasedoLUT[0x14] << KawasedoLUT[0x21];
|
||||
if (x20_xfMAC < tmp)
|
||||
x20_xfMAC = tmp;
|
||||
x64_intermediateMAC = x20_xfMAC;
|
||||
x20_xfMAC -= tmp;
|
||||
x20_xfMAC >>= KawasedoLUT[0x20];
|
||||
|
||||
reinterpret_cast<u32&>(x1c_writeBuf) = x5c_resMAC;
|
||||
|
||||
x28_ticksAfterXf = GetGCTicks();
|
||||
x30_xfDone = 1;
|
||||
|
||||
if (GBAWrite(m_chan, x1c_writeBuf, x10_statusPtr) != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool F31(u8 status)
|
||||
{
|
||||
if (status != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
|
||||
for (;;)
|
||||
{
|
||||
if (x30_xfDone)
|
||||
{
|
||||
x30_xfDone = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (!(*x10_statusPtr & KawasedoLUT[0x14]) ||
|
||||
(*x10_statusPtr & KawasedoLUT[0x2a]) >> KawasedoLUT[0x21] !=
|
||||
(x34_secret & KawasedoLUT[0x21]) >> KawasedoLUT[0x1f])
|
||||
return false;
|
||||
x34_secret -= (KawasedoLUT[0x19] - KawasedoLUT[0x17]);
|
||||
}
|
||||
|
||||
if (x34_secret <= x64_intermediateMAC)
|
||||
{
|
||||
u32 checksum;
|
||||
if (x34_secret != x64_intermediateMAC)
|
||||
{
|
||||
x20_xfMAC = KawasedoLUT[0x1d];
|
||||
checksum = KawasedoLUT[0x1d];
|
||||
while (x20_xfMAC < KawasedoLUT[0x21])
|
||||
{
|
||||
if (xc_progLen)
|
||||
{
|
||||
checksum |= *x8_progPtr++ << (x20_xfMAC * KawasedoLUT[0x25]);
|
||||
--xc_progLen;
|
||||
}
|
||||
}
|
||||
|
||||
if (x34_secret == KawasedoLUT[0x26])
|
||||
{
|
||||
x60_progChecksum = checksum;
|
||||
}
|
||||
else if (KawasedoLUT[0x27] == x34_secret)
|
||||
{
|
||||
checksum = m_chan << KawasedoLUT[0x25];
|
||||
}
|
||||
|
||||
if (x34_secret >= KawasedoLUT[0x2])
|
||||
{
|
||||
u32 checksum2 = checksum;
|
||||
u32 tmp = KawasedoLUT[0x14];
|
||||
u32 tmpSecret = x38_xfSecret;
|
||||
u32 xorTerm = (KawasedoLUT[0x26] << 8) +
|
||||
(((KawasedoLUT[0x2b] - (KawasedoLUT[0x2b] << 4)) +
|
||||
KawasedoLUT[0x28]) - KawasedoLUT[0x23]);
|
||||
while (tmp > KawasedoLUT[0x1e])
|
||||
{
|
||||
if (checksum2 ^ tmpSecret)
|
||||
tmpSecret = (tmpSecret >> 1) ^ xorTerm;
|
||||
else
|
||||
tmpSecret >>= 1;
|
||||
|
||||
++checksum2;
|
||||
--tmp;
|
||||
}
|
||||
x38_xfSecret = tmpSecret;
|
||||
}
|
||||
|
||||
if (x34_secret == KawasedoLUT[0x28] + 256)
|
||||
{
|
||||
x3c_[0] = checksum;
|
||||
}
|
||||
else if (x34_secret == KawasedoLUT[0x1] + 256)
|
||||
{
|
||||
x20_xfMAC = KawasedoLUT[0x7];
|
||||
x3c_[x20_xfMAC] = checksum;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
checksum = x38_xfSecret | x34_secret << 16;
|
||||
}
|
||||
|
||||
if (x34_secret > KawasedoLUT[0x2b])
|
||||
{
|
||||
x58_resK1 = ((KawasedoLUT[0x18] << KawasedoLUT[0x25]) | KawasedoLUT[0x15] |
|
||||
(KawasedoLUT[0x18] << KawasedoLUT[0x2c]) | (KawasedoLUT[0x17] << KawasedoLUT[0x2a])) *
|
||||
x58_resK1 - (KawasedoLUT[0x1b] - KawasedoLUT[0x1a]);
|
||||
|
||||
checksum ^= x58_resK1;
|
||||
checksum ^= -((KawasedoLUT[0xb] << 20) + x34_secret);
|
||||
checksum ^= KawasedoLUT[0xb] | (KawasedoLUT[0x13] << 8) | (KawasedoLUT[0x12] << 16);
|
||||
}
|
||||
|
||||
x1c_writeBuf[3] = checksum >> KawasedoLUT[0x0];
|
||||
x1c_writeBuf[0] = checksum >> KawasedoLUT[0x1e];
|
||||
x1c_writeBuf[1] = checksum >> KawasedoLUT[0x29];
|
||||
x1c_writeBuf[2] = checksum >> KawasedoLUT[0x2a];
|
||||
|
||||
if (x34_secret == KawasedoLUT[0x1] + KawasedoLUT[0x1])
|
||||
x3c_[2] = checksum;
|
||||
|
||||
if (x20_xfMAC < KawasedoLUT[0x21])
|
||||
{
|
||||
x3c_[(3 - (1 - x20_xfMAC))] = checksum;
|
||||
x3c_[5 - x20_xfMAC] = x3c_[(2 - (1 - x20_xfMAC))] * x3c_[4 - x20_xfMAC];
|
||||
x3c_[(5 - (1 - x20_xfMAC))] = x3c_[(2 - (1 - x20_xfMAC))] * x3c_[1 - x20_xfMAC];
|
||||
x3c_[7 - x20_xfMAC] = x3c_[-(1 - x20_xfMAC)] * x3c_[4 - x20_xfMAC];
|
||||
}
|
||||
|
||||
if (GBAWrite(m_chan, x1c_writeBuf, x10_statusPtr) != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
else // x34_secret > x64_intermediateMAC
|
||||
{
|
||||
if (GBARead(m_chan, x18_readBuf, x10_statusPtr) != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool F33(u8 status)
|
||||
{
|
||||
if (status != GBA_READY ||
|
||||
GBAGetStatus(m_chan, x10_statusPtr) != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool F35(u8 status)
|
||||
{
|
||||
for (;;)
|
||||
{
|
||||
if (status != GBA_READY || (*x10_statusPtr & (GBA_JSTAT_FLAGS_MASK | GBA_JSTAT_RECV)))
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
|
||||
if (*x10_statusPtr == GBA_JSTAT_SEND)
|
||||
{
|
||||
if (GBAGetStatus(m_chan, x10_statusPtr) != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
if (GBARead(m_chan, x18_readBuf, x10_statusPtr) != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool F37(u8 status)
|
||||
{
|
||||
if (status != GBA_READY ||
|
||||
GBAWrite(m_chan, x18_readBuf, x10_statusPtr) != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool F39(u8 status)
|
||||
{
|
||||
if (status != GBA_READY)
|
||||
{
|
||||
x28_ticksAfterXf = 0;
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
|
||||
x28_ticksAfterXf = 0;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
public:
|
||||
CKawasedoChallenge(u32 chan, s32 paletteColor, s32 paletteSpeed,
|
||||
u8* programp, s32 length, u8* status)
|
||||
: m_chan(chan), x0_pColor(paletteColor),
|
||||
x4_pSpeed(paletteSpeed), x8_progPtr(programp),
|
||||
xc_progLen(length), x10_statusPtr(status)
|
||||
{
|
||||
x34_secret = KawasedoLUT[0x8];
|
||||
}
|
||||
|
||||
bool DoChallenge()
|
||||
{
|
||||
if (GBAGetStatus(m_chan, x10_statusPtr) != GBA_READY)
|
||||
{
|
||||
x14_callback = nullptr;
|
||||
return false;
|
||||
}
|
||||
if (!F23(*x10_statusPtr))
|
||||
return false;
|
||||
if (!F25(*x10_statusPtr))
|
||||
return false;
|
||||
if (!F27(*x10_statusPtr))
|
||||
return false;
|
||||
if (!F29(*x10_statusPtr))
|
||||
return false;
|
||||
GBAX02();
|
||||
if (!GBAX01())
|
||||
return false;
|
||||
if (!F31(*x10_statusPtr))
|
||||
return false;
|
||||
if (!F33(*x10_statusPtr))
|
||||
return false;
|
||||
if (!F35(*x10_statusPtr))
|
||||
return false;
|
||||
if (!F37(*x10_statusPtr))
|
||||
return false;
|
||||
if (!F39(*x10_statusPtr))
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
static s32 GBAJoyBootAsync(s32 chan, s32 paletteColor, s32 paletteSpeed,
|
||||
u8* programp, s32 length, u8* status)
|
||||
{
|
||||
if (chan > 3)
|
||||
return GBA_JOYBOOT_ERR_INVALID;
|
||||
|
||||
if (!length || length >= 0x40000)
|
||||
return GBA_JOYBOOT_ERR_INVALID;
|
||||
|
||||
if (paletteSpeed < -4 || paletteSpeed > 4)
|
||||
return GBA_JOYBOOT_ERR_INVALID;
|
||||
|
||||
if (paletteColor < 0 || paletteColor > 6)
|
||||
return GBA_JOYBOOT_ERR_INVALID;
|
||||
|
||||
if (programp[0xac] * programp[0xac] * programp[0xac] * programp[0xac] == 0)
|
||||
return GBA_JOYBOOT_ERR_INVALID;
|
||||
|
||||
u8 tmpStatus;
|
||||
s32 ret = GBAGetProcessStatus(chan, &tmpStatus);
|
||||
if (ret != GBA_READY)
|
||||
return ret;
|
||||
|
||||
CKawasedoChallenge challenge(chan, paletteColor, paletteSpeed, programp, length, status);
|
||||
challenge.DoChallenge();
|
||||
|
||||
return GBA_READY;
|
||||
}
|
||||
|
||||
static u32 calculateJBusChecksum(const u8* data, size_t len)
|
||||
{
|
||||
const u8* ptr = data;
|
||||
u32 sum = -1;
|
||||
for (int i = len ; i > 0; --i)
|
||||
{
|
||||
u8 ch = *ptr;
|
||||
ptr++;
|
||||
sum ^= ch;
|
||||
for (int j = 0; j < 8; ++j)
|
||||
{
|
||||
if ((sum & 1))
|
||||
{
|
||||
sum >>= 1;
|
||||
sum ^= 0xb010;
|
||||
}
|
||||
else
|
||||
sum >>= 1;
|
||||
}
|
||||
}
|
||||
|
||||
return sum;
|
||||
}
|
||||
|
||||
CGBASupport::CGBASupport(const char* clientPadPath)
|
||||
{
|
||||
FILE* fp = fopen(clientPadPath, "rb");
|
||||
if (!fp)
|
||||
{
|
||||
fprintf(stderr, "No file at %s\n", clientPadPath);
|
||||
exit(1);
|
||||
}
|
||||
fseek(fp, 0, SEEK_END);
|
||||
x28_fileSize = ftell(fp);
|
||||
fseek(fp, 0, SEEK_SET);
|
||||
x2c_buffer.reset(new u8[x28_fileSize]);
|
||||
fread(x2c_buffer.get(), 1, x28_fileSize, fp);
|
||||
fclose(fp);
|
||||
GBAInit();
|
||||
SharedInstance = this;
|
||||
}
|
||||
|
||||
CGBASupport::~CGBASupport()
|
||||
{
|
||||
SharedInstance = nullptr;
|
||||
}
|
||||
|
||||
bool CGBASupport::PollResponse()
|
||||
{
|
||||
u8 status;
|
||||
if (GBAReset(x40_siChan, &status) == GBA_NOT_READY)
|
||||
if (GBAReset(x40_siChan, &status) == GBA_NOT_READY)
|
||||
return false;
|
||||
|
||||
if (GBAGetStatus(x40_siChan, &status) == GBA_NOT_READY)
|
||||
return false;
|
||||
if (status != (GBA_JSTAT_PSF1 | GBA_JSTAT_SEND))
|
||||
return false;
|
||||
|
||||
u8 bytes[4];
|
||||
if (GBARead(x40_siChan, bytes, &status) == GBA_NOT_READY)
|
||||
return false;
|
||||
if (reinterpret_cast<u32&>(bytes) != SBIG('AMTE'))
|
||||
return false;
|
||||
|
||||
if (GBAGetStatus(x40_siChan, &status) == GBA_NOT_READY)
|
||||
return false;
|
||||
if (status != GBA_JSTAT_PSF1)
|
||||
return false;
|
||||
|
||||
if (GBAWrite(x40_siChan, (unsigned char*)"AMTE", &status) == GBA_NOT_READY)
|
||||
return false;
|
||||
|
||||
if (GBAGetStatus(x40_siChan, &status) == GBA_NOT_READY)
|
||||
return false;
|
||||
if ((status & GBA_JSTAT_FLAGS_MASK) != GBA_JSTAT_FLAGS_MASK)
|
||||
return false;
|
||||
|
||||
u64 profStart = GetGCTicks();
|
||||
const u64 timeToSpin = 486000000 / 8000;
|
||||
for (;;)
|
||||
{
|
||||
u64 curTime = GetGCTicks();
|
||||
if (curTime - profStart > timeToSpin)
|
||||
return true;
|
||||
|
||||
if (GBAGetStatus(x40_siChan, &status) == GBA_NOT_READY)
|
||||
continue;
|
||||
if (!(status & GBA_JSTAT_SEND))
|
||||
continue;
|
||||
|
||||
if (GBAGetStatus(x40_siChan, &status) == GBA_NOT_READY)
|
||||
continue;
|
||||
if (status != (GBA_JSTAT_FLAGS_MASK | GBA_JSTAT_SEND))
|
||||
continue;
|
||||
break;
|
||||
}
|
||||
|
||||
if (GBARead(x40_siChan, bytes, &status) != GBA_READY)
|
||||
return false;
|
||||
|
||||
u32 swapped = hecl::SBig(reinterpret_cast<u32&>(bytes));
|
||||
if (bytes[0] != calculateJBusChecksum(reinterpret_cast<u8*>(&swapped), 3))
|
||||
return false;
|
||||
|
||||
x44_fusionLinked = (bytes[2] & 0x2) != 0;
|
||||
if (x44_fusionLinked && (bytes[2] & 0x1) != 0)
|
||||
x45_fusionBeat = true;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void CGBASupport::Update(float dt)
|
||||
{
|
||||
switch (x34_phase)
|
||||
{
|
||||
case EPhase::LoadClientPad:
|
||||
IsReady();
|
||||
break;
|
||||
|
||||
case EPhase::StartProbeTimeout:
|
||||
x38_timeout = 4.f;
|
||||
x34_phase = EPhase::PollProbe;
|
||||
|
||||
case EPhase::PollProbe:
|
||||
/* SIProbe poll normally occurs here with 4 second timeout */
|
||||
x40_siChan = 1;
|
||||
x34_phase = EPhase::StartJoyBusBoot;
|
||||
|
||||
case EPhase::StartJoyBusBoot:
|
||||
x34_phase = EPhase::PollJoyBusBoot;
|
||||
GBAJoyBootAsync(x40_siChan, x40_siChan * 2, 2, x2c_buffer.get(), x28_fileSize, &x3c_status);
|
||||
break;
|
||||
|
||||
case EPhase::PollJoyBusBoot:
|
||||
if (GBAGetProcessStatus(x40_siChan, &x3c_status) == GBA_BUSY)
|
||||
break;
|
||||
if (GBAGetStatus(x40_siChan, &x3c_status) == GBA_NOT_READY)
|
||||
{
|
||||
x34_phase = EPhase::Failed;
|
||||
break;
|
||||
}
|
||||
x38_timeout = 4.f;
|
||||
x34_phase = EPhase::DataTransfer;
|
||||
break;
|
||||
|
||||
case EPhase::DataTransfer:
|
||||
if (PollResponse())
|
||||
{
|
||||
x34_phase = EPhase::Complete;
|
||||
break;
|
||||
}
|
||||
x38_timeout = std::max(0.f, x38_timeout - dt);
|
||||
if (x38_timeout == 0.f)
|
||||
x34_phase = EPhase::Failed;
|
||||
break;
|
||||
|
||||
default: break;
|
||||
}
|
||||
}
|
||||
|
||||
bool CGBASupport::IsReady()
|
||||
{
|
||||
if (x34_phase != EPhase::LoadClientPad)
|
||||
return true;
|
||||
|
||||
x34_phase = EPhase::Standby;
|
||||
/* Conveniently already little-endian */
|
||||
reinterpret_cast<u32&>(x2c_buffer[0xc8]) = u32(GetGCTicks());
|
||||
x2c_buffer[0xaf] = 'E';
|
||||
x2c_buffer[0xbd] = 0xc9;
|
||||
return true;
|
||||
}
|
||||
|
||||
void CGBASupport::InitializeSupport()
|
||||
{
|
||||
x34_phase = EPhase::Standby;
|
||||
x38_timeout = 0.f;
|
||||
x3c_status = false;
|
||||
x40_siChan = -1;
|
||||
x44_fusionLinked = false;
|
||||
x45_fusionBeat = false;
|
||||
}
|
||||
|
||||
void CGBASupport::StartLink()
|
||||
{
|
||||
x34_phase = EPhase::StartProbeTimeout;
|
||||
x40_siChan = -1;
|
||||
}
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
CGBASupport gba("client_pad.bin");
|
||||
gba.InitializeSupport();
|
||||
gba.StartLink();
|
||||
}
|
||||
Loading…
Reference in New Issue