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https://github.com/melonDS-emu/melonDS.git
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working?
This commit is contained in:
barret
parent
c4f682d106
commit
ec123fffde
3 changed files with 316 additions and 45 deletions
310
src/H8300.cpp
310
src/H8300.cpp
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@ -6,14 +6,21 @@
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#include "H8300.h"
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#include <string.h>
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#include "types.h"
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#include <fcntl.h>
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#include <termios.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/time.h>
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H8300::H8300(){
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printf("H8/300 has been created");
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//debugSerialPort();
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}
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H8300::~H8300(){
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printf("H8/300 has been killed");
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}
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void H8300::speak(){
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@ -21,10 +28,259 @@ void H8300::speak(){
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}
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//This should be called dynamically??
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int H8300::configureSerialPort(){
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memset(buf, 0, sizeof(buf));
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//This should be configures in options
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const char *portname = "/dev/ttyUSB0";
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//sudo chmod 666 /dev/ttyUSB0
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fd = open(portname, O_RDWR | O_NOCTTY | O_NDELAY);
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if (fd == -1){
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printf("H8/300 failed to open the serial port\n");
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return 1;
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}
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struct termios options;
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tcgetattr(fd, &options);
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//Set walker params. We can potentially make this different if we want to talk to walker EMUS
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//baud rate
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cfsetispeed(&options, B115200);
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cfsetospeed(&options, B115200);
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//no parity, 1 stop bit, clear char size mask, 8 data bits, no hardware flow ctrl,
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// enable reciever, ignore modem control lines
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options.c_cflag &= ~PARENB;
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options.c_cflag &= ~CSTOPB;
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options.c_cflag &= ~CSIZE;
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options.c_cflag |= CS8;
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options.c_cflag &= ~CRTSCTS;
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options.c_cflag |= CREAD | CLOCAL;
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// options.c_cc[VTIME] = 1;
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// options.c_cc[VMIN] = 0;
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tcflush(fd, TCIFLUSH);
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tcsetattr(fd, TCSANOW, &options);
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if (tcgetattr(fd, &options) == -1){
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printf("H8/300 failed to configure the serial port\n");
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close(fd);
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return 1;
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}
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return 0;
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}
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int H8300::readSerialPort(){
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//needs to be done this way so we dont have spliced packets. 4ms of no comms indicates eof. Try to ignore and just wait till there are no packets
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/* WORKING BETTER*/
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char tempBuf[0xB8];
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int len = 1; //read(fd, tempBuf, sizeof(tempBuf));
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u8 pointer = 0;
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while (len > 0){
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usleep(4000);
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len = read(fd, tempBuf, sizeof(tempBuf));
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if (len < 0) break;
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for(int i = 0; i < len; i++){
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buf[pointer + i] = tempBuf[i];
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}
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pointer = pointer + len;
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}
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recvLen = pointer;
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if (recvLen == 0) return 0;
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printf("\nrecieved a packet of len: %d\n", recvLen);
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for (int i = 0; i < recvLen; i++){
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printf("0x%02x ", (u8)buf[i] ^ 0xaa);
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}
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printf("\n");
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return recvLen;
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/*
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printf("trying to recieve\n");
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struct timeval tv;
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gettimeofday(&tv, NULL);
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long lastRxTime = tv.tv_usec;
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char tempBuf[0xB8];
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int len = read(fd, tempBuf, sizeof(tempBuf));
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u8 pointer = 0;
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if (len > 0){
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printf("we are rxing a packer");
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//We are now recieving a packet
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long cond = tv.tv_usec - lastRxTime;
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while(cond < 3500){
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cond = tv.tv_usec - lastRxTime;
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gettimeofday(&tv, NULL);
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len = read(fd, tempBuf, sizeof(tempBuf));
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if (len < 0) continue;
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else{
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lastRxTime = tv.tv_usec;
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for(int i = 0; i < len; i++){
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buf[pointer + i] = tempBuf[i];
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}
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pointer = pointer + len;
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}
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}
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}
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recvLen = pointer;
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if (recvLen == 0) return 0;
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printf("\nrecieved a packet of len: %d\n", recvLen);
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for (int i = 0; i < recvLen; i++){
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printf("0x%02x ", (u8)buf[i] ^ 0xaa);
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}
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printf("\n");
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return recvLen;
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*/
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}
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int H8300::sendSerialPort(){
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tcflush(fd, TCIFLUSH);
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//printf("Send packet requested\n");
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printf("\n Sending %d Bytes: %d", sendLen);
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/*
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for (int i = 0; i < sendLen; i++){
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printf("0x%02x ", (u8)sendBuf[i] ^ 0xaa);
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}
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printf("\n");*/
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u8 written = write(fd, sendBuf, sendLen);
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//printf("wrote %d bytes\n", written);
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// getchar();
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return 0;
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}
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int H8300::debugSerialPort(){
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int option = 0;
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while(option != 9){
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printf("\n\nWelcome to the mini H8/300 Debugger. Please select an option.\n");
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printf("1. Read\n");
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printf("2. Write\n");
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printf("3. FD status\n");
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printf("4. Configure Serial Port\n");
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printf("5. Close serial port\n");
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printf("8. Exit without closing port\n");
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printf("9. Exit and close serial port\n");
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scanf("%d", &option);
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if (option ==1){
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//printf("You have 5 seconds to send me some data!!!\n");
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//sleep(5);
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memset(buf, 0, sizeof(buf));
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int len = -1;
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while (len < 0){
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len = read(fd, buf, sizeof(buf));
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}
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printf("Rxed %d bytes\n", len);
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for (int i = 0; i < len; i++){
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printf("0x%02x ", (unsigned char)buf[i]);
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}
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printf("\n");
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}
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else if (option == 2){
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printf("writing not implemented\n");
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}
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else if (option == 3){
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printf("FD status: %d\n", fd);
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}
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else if (option == 4){
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configureSerialPort();
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}
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else if (option == 5){
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close(fd);
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printf("hopefully closed fd\n");
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}
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else if (option == 8){
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break;
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}
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else if (option == 9){
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close(fd);
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printf("Exiting.\n");
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break;
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}
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}
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return 0;
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}
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//A botched implementation
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u8 H8300::handleSPI(u8& IRCmd, u8& val, u32&pos, bool& last){
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printf("IRCmd: %d val:%d pos: %ld last: %d\n", IRCmd, val, pos, last);
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// readSerialPort();
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// printf("IRCmd: %d val:%02x pos: %ld last: %d\n", IRCmd, val, pos, last);
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switch (IRCmd)
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{
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case 0x00: // pass-through
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@ -33,21 +289,51 @@ u8 H8300::handleSPI(u8& IRCmd, u8& val, u32&pos, bool& last){
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case 0x01:
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u8 rtnval;
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if (pos == 0){
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return 0x00;
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}
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if (pos == 1){
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rtnval = 0x01;
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}
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if (pos == 2){
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rtnval = 0x56;
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}
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printf(" returning: 0x%02x val: %d pos: %ld last: %d\n", rtnval, val, pos, last);
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return rtnval;
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recvLen = readSerialPort();
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// printf(" pos 1: found %d bytes\n", recvLen);
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return recvLen;
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}
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else{
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u8 data = (unsigned char)buf[pos-2];
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// printf(" pos: %02x, last: %d, dgettimeofday(&tv, NULL);ata: 0x%02x \n", pos, last, data);
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return data;
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}
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return 0x00;
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case 0x02:
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//printf(" press any key to continue.");
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//getchar();
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if (pos == 0){
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// memset(buf, 0, sizeof(buf)); //we can clear our read buffer because we are sending now. (make easier)
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// recvLen = 0;
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}
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else{
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sendBuf[pos-1] = val; //Load the spi packet into the buffer;
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}
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if (last == 1){
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sendLen = pos;
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sendSerialPort();
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}
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return 0x00;
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case 0x08: // ID
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if (fd <0){
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printf("Configuring port during IR init sequence\n");
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configureSerialPort();
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}
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return 0xAA;
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}
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printf("Unhandled: %d val:%d pos: %ld last: %d\n", IRCmd, val, pos, last);
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// printf("Unhandled: %d val:%d pos: %ld last: %d\n", IRCmd, val, pos, last);
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return 0x00;
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}
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18
src/H8300.h
18
src/H8300.h
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@ -23,8 +23,24 @@ public:
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u8 handleSPI(u8& IRCmd, u8& val, u32&pos, bool& last);
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//TODO add options later
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int configureSerialPort();
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int debugSerialPort();
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int readSerialPort();
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int sendSerialPort();
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private:
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int exampleInt;
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int sessionStatus = 0;
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//file where the TTY will be stores
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int fd = -1;
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u8 recvLen = 0;
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char buf[0xB8];
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char sendBuf[0xB8];
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u8 sendLen;
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};
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#endif
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@ -1129,48 +1129,17 @@ u8 CartRetailIR::SPIWrite(u8 val, u32 pos, bool last)
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//Kind of like an init sequence, we only really care about commands after this first one
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if (pos == 0)
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{
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// printf("IRCmd: %d val:%d pos: %ld last: %d\n", val, val, pos, last);
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IRCmd = val;
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return 0;
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}
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// TODO: emulate actual IR comm
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if (IRCmd == 0){
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return CartRetail::SPIWrite(val, pos-1, last);
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}
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//Yay I am doing the TODO :) Thanks to the giants that came before me!
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else{
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return IRChip.handleSPI(IRCmd, val, pos, last);
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}
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/*
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switch (IRCmd)
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{
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case 0x00: // pass-through
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return CartRetail::SPIWrite(val, pos-1, last);
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case 0xaa:
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u8 rtnval;
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if (pos == 1){
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rtnval = 0x01;
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}
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if (pos == 2){
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rtnval = 0x56;
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}
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printf(" returning: 0x%02x val: %d pos: %ld last: %d\n", rtnval, val, pos, last);
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return rtnval;
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case 0x08: // ID
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return 0xAA;
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}
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return IRChip.handleSPI(val, pos,last);
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//printf(" Unhandled Case: val: 0x%02x\n", val);
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//return 0;*/
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}
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//BARRET END CHANGES
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CartRetailBT::CartRetailBT(const u8* rom, u32 len, u32 chipid, ROMListEntry romparams, std::unique_ptr<u8[]>&& sram, u32 sramlen, void* userdata) :
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