void cmd_start_session(char *arg) {
if(mdb_state == MDB_ENABLED) {
if(session.start.flag == 0) {
session.start.flag = 1;
session.start.funds = atoi(arg);
mdb_poll_reply = MDB_REPLY_BEGIN_SESSION;
} else {
send_str_p(UPLINK_USART,PSTR("Error: Session is already running\r\n"));
}
} else {
send_str_p(UPLINK_USART,PSTR("Error: MateDealer not ready for a session\r\n"));
}
}
void cmd_cancel_session(char *arg) {
if(mdb_state == MDB_SESSION_IDLE) {
mdb_poll_reply = MDB_REPLY_SESSION_CANCEL_REQ;
} else {
send_str_p(UPLINK_USART,PSTR("Error: MateDealer is not in a suitable state to cancel a session\r\n"));
}
}
void cmd_deny_vend(char *arg) {
if(mdb_state == MDB_VENDING) {
session.result.vend_denied = 1;
mdb_poll_reply = MDB_REPLY_VEND_DENIED;
} else {
send_str_p(UPLINK_USART,PSTR("Error: MateDealer is not in a suitable state to deny a vend\r\n"));
}
}
void cmd_help(char *arg) {
send_str_p(UPLINK_USART, PSTR("-----------------------------------------------\r\n"));
send_str_p(UPLINK_USART, PSTR("reset:\r\n reset the Arduino\r\n"));
send_str_p(UPLINK_USART, PSTR("info:\r\n shows the VMC infos transfered during the setup process\r\n"));
send_str_p(UPLINK_USART, PSTR("get-mdb-state:\r\n displays the current MDB state.\r\n"));
send_str_p(UPLINK_USART, PSTR("start-session <funds>:\r\n starts a session with <funds> Euro Cents.\r\n"));
send_str_p(UPLINK_USART, PSTR("approve-vend <vend-amount>:\r\n approves a vend request with <vend-amount> Euro Cents.\r\n"));
send_str_p(UPLINK_USART, PSTR("deny-vend:\r\n denies a vend request.\r\n"));
send_str_p(UPLINK_USART, PSTR("-----------------------------------------------\r\n"));
}
void cmd_get_mdb_state(char *arg) {
switch(mdb_state) {
case MDB_INACTIVE:
send_str_p(UPLINK_USART,PSTR("INACTIVE\r\n"));
break;
case MDB_DISABLED:
send_str_p(UPLINK_USART,PSTR("DISABLED\r\n"));
break;
case MDB_ENABLED:
send_str_p(UPLINK_USART,PSTR("ENABLED\r\n"));
break;
case MDB_SESSION_IDLE:
send_str_p(UPLINK_USART,PSTR("SESSION IDLE\r\n"));
break;
case MDB_VENDING:
send_str_p(UPLINK_USART,PSTR("VEND\r\n"));
break;
case MDB_REVALUE:
send_str_p(UPLINK_USART,PSTR("REVALUE\r\n"));
break;
case MDB_NEGATIVE_VEND:
send_str_p(UPLINK_USART,PSTR("NEGATIVE VEND\r\n"));
break;
}
}
void cmd_approve_vend(char *arg) {
if(mdb_state == MDB_VENDING) {
session.result.vend_approved = 1;
session.result.vend_amount = atoi(arg);
mdb_poll_reply = MDB_REPLY_VEND_APPROVED;
} else {
send_str_p(UPLINK_USART,PSTR("Error: MateDealer is not in a suitable state to approve a vend\r\n"));
}
}
void cmd_info(char *arg) {
if(mdb_state >= MDB_ENABLED) {
char buffer[40];
send_str_p(UPLINK_USART, PSTR("-----------------------------------------------\r\n"));
send_str_p(UPLINK_USART,PSTR("## VMC configuration data ##\r\n"));
sprintf(buffer,"VMC feature level: %d\r\n", vmc.feature_level);
send_str(UPLINK_USART,buffer);
sprintf(buffer,"VMC display columns: %d\r\n", vmc.dispaly_cols);
send_str(UPLINK_USART,buffer);
sprintf(buffer,"VMC display rows: %d\r\n", vmc.dispaly_rows);
send_str(UPLINK_USART,buffer);
sprintf(buffer,"VMC display info: %d\r\n", vmc.dispaly_info);
send_str(UPLINK_USART,buffer);
send_str_p(UPLINK_USART,PSTR("## VMC price range ##\r\n"));
sprintf(buffer,"Maximum price: %d\r\n", price.max);
send_str(UPLINK_USART,buffer);
sprintf(buffer,"Minimum price: %d\r\n", price.min);
send_str(UPLINK_USART,buffer);
send_str_p(UPLINK_USART,PSTR("-----------------------------------------------\r\n"));
} else {
send_str_p(UPLINK_USART,PSTR("Error: Setup not yet completed!\r\n"));
}
}
int main(void) {
setup_usart(0,38400,8,'N',1);
setup_usart(1,9600,9,'N',1);
sei();
send_str_p(0,PSTR("MateDealer is up and running\r\n"));
// Main Loop
while(1) {
mdb_cmd_handler();
uplink_cmd_handler();
}
return 0;
}
void parse_cmd(char *cmd) {
char *tmp;
uint8_t index = 0;
// seperate command from arguments
tmp = strsep(&cmd," ");
// search in command list for the command
while(strcasecmp(CMD_LIST[index].cmd,tmp)) {
if(CMD_LIST[index + 1].cmd == NULL) {
send_str_p(UPLINK_USART,PSTR("Error: Unknown command\r\n"));
return;
}
index++;
}
// run the command
CMD_LIST[index].funcptr(cmd);
return;
}
