Cool_Tools/lindbergh-loader
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Add some extra hooks

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This commit is contained in:
Bobby Dilley 2023-02-05 17:22:01 +00:00
parent 2f26408d33
commit bc800855ee
7 changed files with 133 additions and 14 deletions
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27
src/lindbergh/baseboard.c
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@ -135,6 +135,7 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
case BASEBOARD_INIT:
{
printf("baseboard init\n");
// selectReply = -1; Considering adding this in
return 0;
}
@ -142,6 +143,8 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
case BASEBOARD_READY: // Not sure this is what it should be called
{
printf("baseboard read\n");
selectReply = 0;
return 0;
}
@ -181,6 +184,7 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
case BASEBOARD_GET_SERIAL: // bcCmdSysInfoGetReq
{
printf("game asked for serial\n");
serialCommand.destAddress = _data[1];
serialCommand.destSize = _data[2];
}
@ -199,6 +203,13 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
jvsCommand.destAddress = _data[3];
jvsCommand.destSize = _data[4];
memcpy(inputBuffer, &sharedMemory[jvsCommand.srcAddress], jvsCommand.srcSize);
printf("TO OPENJVS\n");
for (int i = 0; i < jvsCommand.srcSize; i++)
{
printf("%X ", sharedMemory[jvsCommand.srcAddress + i] & 0xFF);
}
printf("\n");
if (getConfig()->emulateJVS)
{
processPacket();
@ -224,7 +235,10 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
break;
case BASEBOARD_GET_SENSE_LINE:
break;
{
printf("REQUEST SENSE LINE\n");
}
break;
default:
printf("Error: Unknown baseboard command %X\n", _data[0]);
@ -246,6 +260,7 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
case BASEBOARD_GET_SERIAL:
{
printf("receive serial\n");
memcpy(&sharedMemory[serialCommand.destAddress + 96], SERIAL_STRING, strlen(SERIAL_STRING));
_data[1] = 1; // Set the status to success
}
@ -255,6 +270,7 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
{
_data[2] = getSenseLine();
_data[1] = 1; // Set the status to success
printf("RECEIVE SENSE LINE\n");
}
break;
@ -262,10 +278,19 @@ int baseboardIoctl(int fd, unsigned int request, void *data)
{
if (getConfig()->emulateJVS)
{
printf("FROM OPENJVS\n");
memcpy(&sharedMemory[jvsCommand.destAddress], outputBuffer, outputPacket.length + 3);
usleep(500);
_data[2] = jvsCommand.destAddress;
_data[3] = outputPacket.length + 3;
_data[1] = 1; // Set the status to success
for (int i = 0; i < _data[3]; i++)
{
printf("%X ", sharedMemory[jvsCommand.destAddress + i] & 0xFF);
}
printf("\n");
}
else if (jvsFileDescriptor >= 0)
{

10
src/lindbergh/config.c
View File

@ -48,7 +48,7 @@ static int detectGame()
return 0;
}
if (strstr(program_invocation_name, "Jennifer") || strstr(program_invocation_name, "JenTest"))
if (strstr(program_invocation_name, "Jennifer"))
{
config.game = OUTRUN;
config.emulateDriveboard = 1;
@ -56,6 +56,14 @@ static int detectGame()
return 0;
}
if (strstr(program_invocation_name, "JenTest"))
{
config.game = OUTRUN_TEST;
config.emulateDriveboard = 1;
config.emulateMotionboard = 1;
return 0;
}
if (strstr(program_invocation_name, "lgj"))
{
config.game = LETS_GO_JUNGLE;

1
src/lindbergh/config.h
View File

@ -10,6 +10,7 @@ typedef enum
SEGABOOT_2_6,
THE_HOUSE_OF_THE_DEAD_4,
OUTRUN,
OUTRUN_TEST,
LETS_GO_JUNGLE
} Game;

16
src/lindbergh/driveboard.c
View File

@ -34,7 +34,7 @@ ssize_t driveboardWrite(int fd, const void *buf, size_t count)
if (count != 4)
{
printf("Error: Drive board count not what expected\n");
//printf("Error: Drive board count not what expected\n");
return 1;
}
@ -44,21 +44,21 @@ ssize_t driveboardWrite(int fd, const void *buf, size_t count)
{
case 0xFF:
{
printf("Driveboard: Drive board reset\n");
//printf("Driveboard: Drive board reset\n");
response = DRIVEBOARD_READY;
}
break;
case 0x81:
{
printf("Driveboard: Drive board reset 2\n");
//printf("Driveboard: Drive board reset 2\n");
response = DRIVEBOARD_NOT_INIT;
}
break;
case 0xFC:
{
printf("Driveboard: Start wheel bounds testing\n");
//printf("Driveboard: Start wheel bounds testing\n");
wheelTest = 1;
}
break;
@ -83,7 +83,7 @@ ssize_t driveboardWrite(int fd, const void *buf, size_t count)
setAnalogue(ANALOGUE_1, (int)(steerValue * 1024));
}
printf("Driveboard move %f %f\n", steerValue, force);
//printf("Driveboard move %f %f\n", steerValue, force);
}
break;
@ -98,14 +98,14 @@ ssize_t driveboardWrite(int fd, const void *buf, size_t count)
if (buffer[1] == 0)
force = ((1 - ((double)buffer[2] / 128.0)) * 2) / 100;
printf("Driveboard set force%f %f\n", steerValue, force);
//printf("Driveboard set force%f %f\n", steerValue, force);
}
break;
case 0xFA:
case 0xFD:
{
printf("Driveboard: auto turn wheel mode\n");
//printf("Driveboard: auto turn wheel mode\n");
if (wheelTest)
{
@ -123,7 +123,7 @@ ssize_t driveboardWrite(int fd, const void *buf, size_t count)
break;
default:
printf("Driveboard: Unknown command received %X\n", buffer[0]);
//printf("Driveboard: Unknown command received %X\n", buffer[0]);
break;
}

2
src/lindbergh/graphics.c
View File

@ -29,7 +29,7 @@ FGAPI int FGAPIENTRY glutEnterGameMode()
glutCreateWindow(gameTitle);
// Outrun doesn't run the glutMainLoop through, so we'll do that here
if (getConfig()->game == OUTRUN)
if (getConfig()->game == OUTRUN || getConfig()->game == OUTRUN_TEST)
{
pthread_t glutMainLoopID;
pthread_create(&glutMainLoopID, NULL, &glutMainLoopThread, NULL);

82
src/lindbergh/hook.c
View File

@ -126,6 +126,67 @@ void setVariable(uint32_t address, uint32_t value)
*variable = value;
}
/**
bool Detour(byte_t* src, byte_t* dst, size_t size)
{
if(size < HOOK_MIN_SIZE) return false;
//mprotect(src, size, PROT_EXEC | PROT_READ | PROT_WRITE);
int out = ProtectMemory((mem_t)src, size, PROT_EXEC | PROT_READ | PROT_WRITE);
//std::cout << out << std::endl;
mem_t jmpAddr = ((mem_t)dst - (mem_t)src) - HOOK_MIN_SIZE;
byte_t CodeCave[] = { JMP, 0x0, 0x0, 0x0, 0x0 };
*(mem_t*)((mem_t)CodeCave + sizeof(JMP)) = jmpAddr;
memcpy(src, CodeCave, sizeof(CodeCave));
return true;
}
*/
void detourFunction(uint32_t address, void *function)
{
int pagesize = sysconf(_SC_PAGE_SIZE);
void *toModify = (void *)(address - (address % pagesize));
int prot = mprotect(toModify, pagesize, PROT_EXEC | PROT_WRITE | PROT_READ);
if (prot != 0)
{
printf("unprotect error %d\n", prot);
abort();
}
uint32_t jumpAddress = ((uint32_t)function - address) - 5;
char cave[5] = {0xE9, 0x0, 0x00, 0x00, 0x00};
memcpy(cave + 1, (void *)jumpAddress, 4);
for (int i = 0; i < 5; i++)
{
printf("%X ", cave[i] & 0xFF);
}
printf("\n");
memcpy((void *)address, cave, 5);
return;
}
int amDongleInit()
{
printf("amDongleInit calld\n");
return 0;
}
int amDongleIsAvailable()
{
printf("amDongleIsAvailable calld\n");
return 1;
}
int amDongleUpdate()
{
printf("amDongleUpdate calld\n");
return 0;
}
void __attribute__((constructor)) hook_init()
{
printf("SEGA Lindbergh Loader\nRobert Dilley 2022\nNot for public consumption\n\n");
@ -183,6 +244,27 @@ void __attribute__((constructor)) hook_init()
setVariable(0x0a737f20, 2); // bcLibDebugLevel
setVariable(0x0a737f24, 0x0FFFFFFF); // s_logMask
*/
if (getConfig()->game == OUTRUN)
{
printf("Enabling game debug features for outrun\n");
setVariable(0x0893a24c, 2); // amBackupDebugLevel
setVariable(0x0893a260, 2); // amCreditDebugLevel
setVariable(0x0893a4b8, 2); // amDipswDebugLevel
setVariable(0x0893a4bc, 2); // amDongleDebugLevel
setVariable(0x0893a4c0, 2); // amEepromDebugLevel
setVariable(0x0893a4c4, 2); // amHwmonitorDebugLevel
setVariable(0x0893a4c8, 2); // amJvsDebugLevel
setVariable(0x0893a4cc, 2); // amLibDebugLevel
setVariable(0x0893a4d0, 2); // amMiscDebugLevel
setVariable(0x0893a4d4, 2); // amOsinfoDebugLevel
setVariable(0x0893a4d8, 2); // amSysDataDebugLevel
setVariable(0x0893a4e0, 2); // bcLibDebugLevel
detourFunction(0x08190e80, amDongleInit); // amInit 08190e80
detourFunction(0x08191201, amDongleIsAvailable);
detourFunction(0x08191125, amDongleUpdate);
}
}
int open(const char *pathname, int flags)

9
src/lindbergh/jvs.c
View File

@ -189,7 +189,7 @@ JVSStatus processPacket()
size = 2;
io.deviceID = -1;
senseLine = 3;
// printf("CMD_RESET %d\n", senseLine);
printf("CMD_RESET %d\n", senseLine);
}
break;
@ -559,9 +559,11 @@ JVSStatus readPacket(JVSPacket *packet)
*/
JVSStatus writePacket(JVSPacket *packet)
{
printf("packet\n");
/* Don't return anything if there isn't anything to write! */
if (packet->length < 2)
return JVS_STATUS_SUCCESS;
printf("sent a packet\n");
/* Get pointer to raw data in packet */
unsigned char *packetPointer = (unsigned char *)packet;
@ -640,5 +642,6 @@ int setAnalogue(JVSInput channel, int value)
}
void setSenseLine(int _senseLine) {
printf("sense line set to %d\n", _senseLine);
senseLine = _senseLine;
}