//------------------------------------------------------------------------------
u08 AVCLan_Read_Message()
{
STOPEvent; // disable timer1 interrupt
u08 T = 0;
u08 i;
u08 for_me = 0;
//RS232_Print("$ ");
timer0_source(CK64);
// check start bit
timer0_start();
while (INPUT_IS_SET) {
T=TCNT0;
if (T>254) {
STARTEvent;
RS232_Print("LAN>T1\n");
return 0;
}
}
if (T<10) { // !!!!!!! 20 !!!!!!!!!!!
STARTEvent;
RS232_Print("LAN>T2\n");
return 0;
}
broadcast = AVCLan_Read_Byte(1);
parity_bit = 0;
master1 = AVCLan_Read_Byte(4);
master2 = AVCLan_Read_Byte(8);
if ((parity_bit&1)!=AVCLan_Read_Byte(1)) {
STARTEvent;
return 0;
}
parity_bit = 0;
slave1 = AVCLan_Read_Byte(4);
slave2 = AVCLan_Read_Byte(8);
if ((parity_bit&1)!=AVCLan_Read_Byte(1)) {
STARTEvent;
return 0;
}
// is this command for me ?
if ((slave1==CD_ID_1)&&(slave2==CD_ID_2)) {
for_me=1;
}
if (for_me) AVCLan_Send_ACK();
else AVCLan_Read_Byte(1);
parity_bit = 0;
AVCLan_Read_Byte(4); // control - always 0xF
if ((parity_bit&1)!=AVCLan_Read_Byte(1)) {
STARTEvent;
return 0;
}
if (for_me) AVCLan_Send_ACK();
else AVCLan_Read_Byte(1);
parity_bit = 0;
message_len = AVCLan_Read_Byte(8);
if ((parity_bit&1)!=AVCLan_Read_Byte(1)) {
STARTEvent;
return 0;
}
if (for_me) AVCLan_Send_ACK();
else AVCLan_Read_Byte(1);
if (message_len > MAXMSGLEN) {
// RS232_Print("LAN> Command error");
STARTEvent;
return 0;
}
for (i=0; i<message_len; i++) {
parity_bit = 0;
message[i] = AVCLan_Read_Byte(8);
if ((parity_bit&1)!=AVCLan_Read_Byte(1)) {
STARTEvent;
return 0;
}
if (for_me) {
AVCLan_Send_ACK();
} else {
AVCLan_Read_Byte(1);
}
}
STARTEvent;
if (showLog) ShowInMessage();
if (for_me) {
if (CheckCmd((u08*)stat1)) { answerReq = cmStatus1; return 1; }
if (CheckCmd((u08*)stat2)) { answerReq = cmStatus2; return 1; }
if (CheckCmd((u08*)stat3)) { answerReq = cmStatus3; return 1; }
if (CheckCmd((u08*)stat4)) { answerReq = cmStatus4; return 1; }
// if (CheckCmd((u08*)stat5)) { answerReq = cmStatus5; return 1; }
if (CheckCmd((u08*)play_req1)) { answerReq = cmPlayReq1; return 1; }
if (CheckCmd((u08*)play_req2)) { answerReq = cmPlayReq2; return 1; }
if (CheckCmd((u08*)play_req3)) { answerReq = cmPlayReq3; return 1; }
if (CheckCmd((u08*)stop_req)) { answerReq = cmStopReq; return 1; }
if (CheckCmd((u08*)stop_req2)) { answerReq = cmStopReq2; return 1; }
} else { // broadcast check
if (CheckCmd((u08*)lan_playit)) { answerReq = cmPlayIt; return 1; }
if (CheckCmd((u08*)lan_check)) {
answerReq = cmCheck;
CMD_CHECK[6]=message[3];
return 1;
}
if (CheckCmd((u08*)lan_reg)) { answerReq = cmRegister; return 1; }
if (CheckCmd((u08*)lan_init)) { answerReq = cmInit; return 1; }
if (CheckCmd((u08*)lan_stat1)) { answerReq = cmStatus1; return 1; }
}
answerReq = cmNull;
return 1;
}
//------------------------------------------------------------------------------
int main()
{
PIN_Setup();
AVCLan_Init();
iPod_Init();
#ifdef MONITOR
delay_ms(100);
RS232_Print("********************** RESET *********************8\n");
#endif
while (1) {
//Wait1msForAVCLan();
if ((INPUT_IS_SET>0) & (ACC_IS_ON>0)) { // if message from some device on AVCLan begin
AVCLan_Read_Message();
} else {
// check command from HU
if ((answerReq != 0) & (RXState == WAITING_FOR_FF)) AVCLan_SendAnswer();
}
// HandleEvent
if (((Event & EV_STATUS)>0) & (RXState == WAITING_FOR_FF)) {
if (CD_Mode != stStop) {
if ((CD_Mode == stFF) | (CD_Mode == stRR)) {
if (!AVCLan_Send_Status(0x18)) Event &= ~EV_STATUS;
}
else
{
switch (playMode) {
case 0: if (!AVCLan_Send_Status(0x03)) Event &= ~EV_STATUS; break;
case 1: if (!AVCLan_Send_Status(0x10)) Event &= ~EV_STATUS; break;
};
};
};
}
if (Event & EV_DISPLAY) {
if (!AVCLan_Send_Changer_Status()) Event &= ~EV_DISPLAY;;
};
if (ACC_IS_ON) {
// audio output
if (CD_Mode == stStop)
CHANNELS_OFF();
if (CD_Mode == stPlay)
{
if (AuxInput==Aux2)
CHANNEL_TWO();
if (AuxInput==Aux1)
CHANNEL_ONE();
}
} else {
CHANNELS_OFF();
CD_Mode = stStop;
playMode = 0;
};
// iPod
if (AUX1ISIPOD)
iPod_Poll();
if (!(ACC_IS_ON))
registered = 0;
// zzzzz
//if (sleepcounter > 5)
// {
// CHANNELS_OFF();
// sleep_mode();
// sleepcounter = 0;
// }
} // end while(1)
}
