2010-12-19 12:40:33 -04:00
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// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: t -*-
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void init_commands()
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{
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2011-02-19 03:21:42 -04:00
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//read_EEPROM_waypoint_info();
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2011-02-17 03:25:31 -04:00
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g.waypoint_index.set_and_save(0);
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2010-12-19 12:40:33 -04:00
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command_must_index = 0;
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command_may_index = 0;
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next_command.id = CMD_BLANK;
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}
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void update_auto()
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{
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2011-02-19 03:21:42 -04:00
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if (g.waypoint_index == g.waypoint_total) {
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2011-03-02 22:32:50 -04:00
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do_RTL();
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2010-12-19 12:40:33 -04:00
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}
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}
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2011-03-02 22:32:50 -04:00
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// this is only used by an air-start
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void reload_commands_airstart()
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2010-12-19 12:40:33 -04:00
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{
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init_commands();
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2011-02-17 03:09:13 -04:00
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g.waypoint_index.load(); // XXX can we assume it's been loaded already by ::load_all?
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decrement_WP_index();
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}
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2010-12-19 12:40:33 -04:00
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// Getters
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// -------
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struct Location get_wp_with_index(int i)
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{
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struct Location temp;
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long mem;
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// Find out proper location in memory by using the start_byte position + the index
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// --------------------------------------------------------------------------------
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2011-02-17 03:09:13 -04:00
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if (i > g.waypoint_total) {
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2010-12-19 12:40:33 -04:00
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temp.id = CMD_BLANK;
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}else{
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2011-02-17 05:36:33 -04:00
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// read WP position
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2010-12-19 12:40:33 -04:00
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mem = (WP_START_BYTE) + (i * WP_SIZE);
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temp.id = eeprom_read_byte((uint8_t*)mem);
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2011-03-05 00:56:58 -04:00
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mem++;
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temp.options = eeprom_read_byte((uint8_t*)mem);
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2010-12-19 12:40:33 -04:00
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mem++;
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temp.p1 = eeprom_read_byte((uint8_t*)mem);
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2011-03-05 00:56:58 -04:00
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2010-12-19 12:40:33 -04:00
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mem++;
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temp.alt = (long)eeprom_read_dword((uint32_t*)mem);
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2011-03-05 00:56:58 -04:00
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2010-12-19 12:40:33 -04:00
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mem += 4;
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temp.lat = (long)eeprom_read_dword((uint32_t*)mem);
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2011-03-05 00:56:58 -04:00
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2010-12-19 12:40:33 -04:00
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mem += 4;
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temp.lng = (long)eeprom_read_dword((uint32_t*)mem);
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}
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2011-03-02 22:32:50 -04:00
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// Add on home altitude if we are a nav command
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2011-03-05 00:56:58 -04:00
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if(temp.options & WP_OPT_ALT_RELATIVE){
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2011-03-02 22:32:50 -04:00
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temp.alt += home.alt;
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2011-03-05 00:56:58 -04:00
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}
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2011-03-02 22:32:50 -04:00
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2010-12-19 12:40:33 -04:00
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return temp;
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}
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// Setters
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// -------
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void set_wp_with_index(struct Location temp, int i)
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{
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2011-02-19 03:21:42 -04:00
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i = constrain(i, 0, g.waypoint_total.get());
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2011-03-02 22:32:50 -04:00
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2011-03-05 00:56:58 -04:00
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//if(i > 0 && temp.id < 50){
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// temp.options & WP_OPT_LOCATION
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2011-03-02 22:32:50 -04:00
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// remove home altitude if we are a nav command
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2011-03-05 00:56:58 -04:00
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// temp.alt -= home.alt;
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//}
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// Store the location relatove to home
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if(temp.options & WP_OPT_ALT_RELATIVE){
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2011-03-02 22:32:50 -04:00
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temp.alt -= home.alt;
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}
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2011-03-05 00:56:58 -04:00
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2010-12-19 12:40:33 -04:00
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uint32_t mem = WP_START_BYTE + (i * WP_SIZE);
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eeprom_write_byte((uint8_t *) mem, temp.id);
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2011-03-05 00:56:58 -04:00
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mem++;
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eeprom_write_byte((uint8_t *) mem, temp.options);
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2010-12-19 12:40:33 -04:00
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mem++;
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eeprom_write_byte((uint8_t *) mem, temp.p1);
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mem++;
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eeprom_write_dword((uint32_t *) mem, temp.alt);
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mem += 4;
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eeprom_write_dword((uint32_t *) mem, temp.lat);
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mem += 4;
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eeprom_write_dword((uint32_t *) mem, temp.lng);
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}
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void increment_WP_index()
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{
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2011-02-19 03:21:42 -04:00
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if (g.waypoint_index < g.waypoint_total) {
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2011-02-17 03:25:31 -04:00
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g.waypoint_index.set_and_save(g.waypoint_index + 1);
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2011-02-19 03:21:42 -04:00
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SendDebug("MSG <increment_WP_index> WP index is incremented to ");
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2010-12-19 12:40:33 -04:00
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}else{
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2011-02-19 03:21:42 -04:00
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//SendDebug("MSG <increment_WP_index> Failed to increment WP index of ");
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// This message is used excessively at the end of a mission
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2010-12-19 12:40:33 -04:00
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}
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2011-02-17 03:25:31 -04:00
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SendDebugln(g.waypoint_index,DEC);
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2010-12-19 12:40:33 -04:00
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}
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2011-02-17 03:25:31 -04:00
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2010-12-19 12:40:33 -04:00
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void decrement_WP_index()
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{
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2011-02-19 03:21:42 -04:00
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if (g.waypoint_index > 0) {
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2011-02-17 03:25:31 -04:00
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g.waypoint_index.set_and_save(g.waypoint_index - 1);
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2011-02-19 03:21:42 -04:00
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}
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2010-12-19 12:40:33 -04:00
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}
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2011-02-17 03:25:31 -04:00
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long read_alt_to_hold()
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2011-02-17 05:36:33 -04:00
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{
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2011-02-25 01:33:39 -04:00
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if(g.RTL_altitude < 0)
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2011-02-17 03:25:31 -04:00
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return current_loc.alt;
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else
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return g.RTL_altitude + home.alt;
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}
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2010-12-19 12:40:33 -04:00
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2011-02-24 01:56:59 -04:00
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2010-12-19 12:40:33 -04:00
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//********************************************************************************
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//This function sets the waypoint and modes for Return to Launch
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//********************************************************************************
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2011-03-02 22:32:50 -04:00
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Location get_LOITER_home_wp()
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2010-12-19 12:40:33 -04:00
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{
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2011-02-17 05:36:33 -04:00
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// read home position
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struct Location temp = get_wp_with_index(0);
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2011-02-19 03:21:42 -04:00
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temp.id = MAV_CMD_NAV_LOITER_UNLIM;
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2011-03-02 22:32:50 -04:00
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temp.alt = read_alt_to_hold();
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2010-12-19 12:40:33 -04:00
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return temp;
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}
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/*
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This function stores waypoint commands
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It looks to see what the next command type is and finds the last command.
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*/
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2011-02-24 01:56:59 -04:00
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void set_next_WP(struct Location *wp)
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2010-12-19 12:40:33 -04:00
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{
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2011-02-19 03:21:42 -04:00
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//GCS.send_text(SEVERITY_LOW,"load WP");
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SendDebug("MSG <set_next_wp> wp_index: ");
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SendDebugln(g.waypoint_index, DEC);
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gcs.send_message(MSG_COMMAND_LIST, g.waypoint_index);
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2010-12-19 12:40:33 -04:00
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// copy the current WP into the OldWP slot
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// ---------------------------------------
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2011-02-19 03:21:42 -04:00
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prev_WP = next_WP;
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2011-02-17 05:36:33 -04:00
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2010-12-19 12:40:33 -04:00
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// Load the next_WP slot
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// ---------------------
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next_WP = *wp;
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2011-02-17 05:36:33 -04:00
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2010-12-19 12:40:33 -04:00
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// used to control FBW and limit the rate of climb
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// -----------------------------------------------
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2011-02-24 01:56:59 -04:00
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target_altitude = current_loc.alt;
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2011-03-02 22:32:50 -04:00
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// XXX YUCK!
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2011-02-24 01:56:59 -04:00
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if(prev_WP.id != MAV_CMD_NAV_TAKEOFF && prev_WP.alt != home.alt && (next_WP.id == MAV_CMD_NAV_WAYPOINT || next_WP.id == MAV_CMD_NAV_LAND))
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offset_altitude = next_WP.alt - prev_WP.alt;
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else
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offset_altitude = 0;
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2011-02-17 05:36:33 -04:00
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2010-12-19 12:40:33 -04:00
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// zero out our loiter vals to watch for missed waypoints
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2011-02-19 03:21:42 -04:00
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loiter_delta = 0;
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loiter_sum = 0;
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loiter_total = 0;
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2010-12-19 12:40:33 -04:00
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2011-02-19 03:21:42 -04:00
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// this is used to offset the shrinking longitude as we go towards the poles
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float rads = (abs(next_WP.lat)/t7) * 0.0174532925;
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scaleLongDown = cos(rads);
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scaleLongUp = 1.0f/cos(rads);
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2010-12-19 12:40:33 -04:00
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// this is handy for the groundstation
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2011-03-02 22:32:50 -04:00
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wp_totalDistance = get_distance(¤t_loc, &next_WP);
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wp_distance = wp_totalDistance;
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2010-12-19 12:40:33 -04:00
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target_bearing = get_bearing(¤t_loc, &next_WP);
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2011-02-19 03:21:42 -04:00
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2011-03-02 22:32:50 -04:00
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// to check if we have missed the WP
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// ----------------------------
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2010-12-19 12:40:33 -04:00
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old_target_bearing = target_bearing;
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2011-02-17 05:36:33 -04:00
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2010-12-19 12:40:33 -04:00
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// set a new crosstrack bearing
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// ----------------------------
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reset_crosstrack();
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2011-02-19 03:21:42 -04:00
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gcs.print_current_waypoints();
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2010-12-19 12:40:33 -04:00
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}
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// run this at setup on the ground
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// -------------------------------
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void init_home()
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{
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2011-02-19 03:21:42 -04:00
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SendDebugln("MSG: <init_home> init home");
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2010-12-19 12:40:33 -04:00
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// block until we get a good fix
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// -----------------------------
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2011-02-17 05:36:33 -04:00
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while (!g_gps->new_data || !g_gps->fix) {
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g_gps->update();
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2010-12-19 12:40:33 -04:00
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}
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2011-02-17 05:36:33 -04:00
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2011-02-19 03:21:42 -04:00
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home.id = MAV_CMD_NAV_WAYPOINT;
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2011-02-17 05:36:33 -04:00
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home.lng = g_gps->longitude; // Lon * 10**7
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home.lat = g_gps->latitude; // Lat * 10**7
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2011-02-21 00:30:56 -04:00
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home.alt = max(g_gps->altitude, 0);
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2010-12-19 12:40:33 -04:00
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home_is_set = true;
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2011-02-21 00:30:56 -04:00
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Serial.printf("gps alt: %ld", home.alt);
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2010-12-19 12:40:33 -04:00
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// ground altitude in centimeters for pressure alt calculations
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// ------------------------------------------------------------
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2011-02-24 01:56:59 -04:00
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g.ground_pressure.save();
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2010-12-19 12:40:33 -04:00
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// Save Home to EEPROM
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// -------------------
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set_wp_with_index(home, 0);
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// Save prev loc
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// -------------
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2011-02-19 03:21:42 -04:00
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next_WP = prev_WP = home;
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2010-12-19 12:40:33 -04:00
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}
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