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Toyota-AVC-LAN/sniffer.c
Allen Hill 66633db24e Update serial registers
2023-08-06 20:48:45 -04:00

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/*
Copyright (C) 2006 Marcin Slonicki <marcin@softservice.com.pl>.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-----------------------------------------------------------------------
this file is a part of the TOYOTA Corolla MP3 Player Project
-----------------------------------------------------------------------
http://www.softservice.com.pl/corolla/avc
May 28 / 2009 - version 2
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include "GlobalDef.h"
#include "com232.h"
#include "avclandrv.h"
// -------------------------------------------------------------------------------------
void Setup();
byte rcv_command[5];
byte rcv_pos = 0;
byte rcv_time_clr = 0;
// -------------------------------------------------------------------------------------
// -------------------------------------------------------------------------------------
// MAIN PROGRAM
//
int main()
{
byte readSeq = 0;
byte s_len = 0;
byte s_dig = 0;
byte s_c[2];
byte i;
byte data_tmp[32];
Setup();
RS232_Print("AVCLan reader 1.00\nReady\n\n");
LED_OFF();
RS232_Print_P(PSTR("\nS - read sequence\nW - send command\nQ - send broadcast\nL/l - log on/off\nK/k - seq. echo on/off\n"));
RS232_Print_P(PSTR("R/r - register device\nB - Beep\n"));
#ifdef HARDWARE_DEBUG
RS232_Print_P(PSTR("1 - Hold High/low\nE - Print line status\n"));
#endif
#ifdef SOFTWARE_DEBUG
RS232_Print_P(PSTR("M - Measure high and low lengths\n"));
#endif
while (1) {
if (INPUT_IS_SET) { // if message from some device on AVCLan begin
LED_ON();
AVCLan_Read_Message();
// show message
} else {
LED_OFF();
// check command from HU
if (answerReq != 0) AVCLan_SendAnswer();
}
// HandleEvent
switch (Event) {
case EV_STATUS: Event &= ~EV_STATUS;
AVCLan_Send_Status();
break;
}
// Key handler
if (RS232_RxCharEnd) {
cbi(USART0.CTRLA, USART_RXCIE_bp); // disable RX complete interrupt
readkey = RS232_RxCharBuffer[RS232_RxCharBegin];// read begin of received Buffer
RS232_RxCharBegin++;
if (RS232_RxCharBegin == RS232_RxCharEnd) // if Buffer is empty
RS232_RxCharBegin = RS232_RxCharEnd = 0; // do reset Buffer
sbi(USART0.CTRLA, USART_RXCIE_bp); // enable RX complete interrupt
switch (readkey) {
case 'S': showLog = 0;
RS232_Print_P(PSTR("READ SEQUENCE > \n"));
readSeq = 1;
s_len=0;
s_dig=0;
s_c[0]=s_c[1]=0;
break;
case 'W' : showLog = 1;
readSeq=0;
AVCLan_SendMyData(data_tmp, s_len);
break;
case 'Q' : showLog = 1;
readSeq=0;
AVCLan_SendMyDataBroadcast(data_tmp, s_len);
break;
case 'R': RS232_Print_P(PSTR("REGIST:\n"));
AVCLan_Command( cmRegister );
TCB1.CNT = 0;
while( TCB1.CNT < 540 );
CHECK_AVC_LINE;
break;
case 'r': AVCLan_Register();
break;
case 'l': RS232_Print_P(PSTR("Log OFF\n"));
showLog = 0;
break;
case 'L': RS232_Print_P(PSTR("Log ON\n"));
showLog = 1;
break;
case 'k': RS232_Print_P(PSTR("str OFF\n"));
showLog2 = 0;
break;
case 'K': RS232_Print_P(PSTR("str ON\n"));
showLog2 = 1;
break;
case 'B':
data_tmp[0] = 0x00;
data_tmp[1] = 0x5E;
data_tmp[2] = 0x29;
data_tmp[3] = 0x60;
data_tmp[4] = 0x01;
s_len = 5;
AVCLan_SendMyData(data_tmp, s_len);
break;
#ifdef HARDWARE_DEBUG
case '1':
SetHighLow();
break;
case 'E':
if(INPUT_IS_SET) {
RS232_Print_P(PSTR("Set/High/1\n"));
} else if (INPUT_IS_CLEAR) {
RS232_Print_P(PSTR("Unset/Low/0\n"));
} else {
RS232_Print_P(PSTR("WTF?\n"));
}
break;
#endif
#ifdef SOFTWARE_DEBUG
case 'M':
AVCLan_Measure();
break;
#endif
default :
if (readSeq==1) {
s_c[s_dig]=readkey;
s_dig++;
if (s_dig==2) {
if (s_c[0]<':') s_c[0] -= 48;
else s_c[0] -= 55;
data_tmp[s_len] = 16 * s_c[0];
if (s_c[1]<':') s_c[1] -= 48;
else s_c[1] -= 55;
data_tmp[s_len] += s_c[1];
s_len++;
s_dig=0;
s_c[0]=s_c[1]=0;
}
if (showLog2) {
RS232_Print_P(PSTR("CURRENT SEQUENCE > "));
for (i=0; i<s_len; i++) {
RS232_PrintHex8(data_tmp[i]);
RS232_SendByte(' ');
}
RS232_Print_P(PSTR("\n"));
}
}
} // switch (readkey)
}// if (RS232_RxCharEnd)
}
return 0;
}
// -------------------------------------------------------------------------------------
// -------------------------------------------------------------------------------------
// Setup - uP: ATMega328p
//
void Setup()
{
// GIMSK = 0; // (GICR ?) disable external interupts
CD_ID_1 = 0x03;
CD_ID_2 = 0x60;
HU_ID_1 = 0x01;
HU_ID_2 = 0x90;
showLog = 1;
showLog2 = 1;
MCUCR = 0;
loop_until_bit_is_clear(RTC_STATUS, RTC_CTRLABUSY_bp);
RTC.CTRLA = RTC_PRESCALER_DIV1_gc;
RTC.CLKSEL = RTC_CLKSEL_INT32K_gc;
RTC.PITINTCTRL = RTC_PI_bm;
loop_until_bit_is_clear(RTC_PITSTATUS, RTC_CTRLBUSY_bp);
RTC.PITCTRLA = RTC_PERIOD_CYC32768_gc | RTC_PITEN_bm;
RS232_Init();
AVCLan_Init();
Event = EV_NOTHING;
sei();
}
// -------------------------------------------------------------------------------------
ISR(RTC_PIT_vect) // Periodic interrupt with a 1 sec period
{
if (CD_Mode==stPlay)
{
cd_Time_Sec=incBCD(cd_Time_Sec);
if (cd_Time_Sec==0x60) {
cd_Time_Sec = 0;
cd_Time_Min=incBCD(cd_Time_Min);
if (cd_Time_Min==0xA0) {
cd_Time_Min=0x0;
}
}
}
Event |= EV_STATUS;
RTC.PITINTFLAGS |= RTC_PI_bm;
}
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