/*
list available log numbers
*/
void DataFlash_Block::ListAvailableLogs(AP_HAL::BetterStream *port)
{
uint16_t num_logs = get_num_logs();
int16_t last_log_num = find_last_log();
uint16_t log_start = 0;
uint16_t log_end = 0;
if (num_logs == 0) {
port->printf_P(PSTR("\nNo logs\n\n"));
return;
}
port->printf_P(PSTR("\n%u logs\n"), (unsigned)num_logs);
for (uint16_t i=num_logs; i>=1; i--) {
uint16_t last_log_start = log_start, last_log_end = log_end;
uint16_t temp = last_log_num - i + 1;
get_log_boundaries(temp, log_start, log_end);
port->printf_P(PSTR("Log %u, start %u, end %u\n"),
(unsigned)temp,
(unsigned)log_start,
(unsigned)log_end);
if (last_log_start == log_start && last_log_end == log_end) {
// we are printing bogus logs
break;
}
}
port->println();
}
// find log size and time
void DataFlash_Block::get_log_info(uint16_t log_num, uint32_t &size, uint32_t &time_utc)
{
uint16_t start, end;
get_log_boundaries(log_num, start, end);
if (end >= start) {
size = (end + 1 - start) * (uint32_t)df_PageSize;
} else {
size = (df_NumPages + end - start) * (uint32_t)df_PageSize;
}
time_utc = 0;
}
/**
handle request for log data
*/
void DataFlash_Class::handle_log_request_data(GCS_MAVLINK &link, mavlink_message_t *msg)
{
if (_log_sending_chan >= 0) {
// some GCS (e.g. MAVProxy) attempt to stream request_data
// messages when they're filling gaps in the downloaded logs.
// This channel check avoids complaining to them, at the cost
// of silently dropping any repeated attempts to start logging
if (_log_sending_chan != link.get_chan()) {
link.send_text(MAV_SEVERITY_INFO, "Log download in progress");
}
return;
}
mavlink_log_request_data_t packet;
mavlink_msg_log_request_data_decode(msg, &packet);
_in_log_download = true;
_log_listing = false;
if (!_log_sending || _log_num_data != packet.id) {
_log_sending = false;
uint16_t num_logs = get_num_logs();
if (packet.id > num_logs || packet.id < 1) {
return;
}
uint32_t time_utc, size;
get_log_info(packet.id, size, time_utc);
_log_num_data = packet.id;
_log_data_size = size;
uint16_t end;
get_log_boundaries(packet.id, _log_data_page, end);
}
_log_data_offset = packet.ofs;
if (_log_data_offset >= _log_data_size) {
_log_data_remaining = 0;
} else {
_log_data_remaining = _log_data_size - _log_data_offset;
}
if (_log_data_remaining > packet.count) {
_log_data_remaining = packet.count;
}
_log_sending = true;
_log_sending_chan = link.get_chan();
handle_log_send(link);
}
/**
handle request for log data
*/
void DataFlash_Class::handle_log_request_data(GCS_MAVLINK &link, mavlink_message_t *msg)
{
if (_log_sending_link != nullptr) {
// some GCS (e.g. MAVProxy) attempt to stream request_data
// messages when they're filling gaps in the downloaded logs.
// This channel check avoids complaining to them, at the cost
// of silently dropping any repeated attempts to start logging
if (_log_sending_link->get_chan() != link.get_chan()) {
link.send_text(MAV_SEVERITY_INFO, "Log download in progress");
}
return;
}
mavlink_log_request_data_t packet;
mavlink_msg_log_request_data_decode(msg, &packet);
// consider opening or switching logs:
if (transfer_activity != SENDING || _log_num_data != packet.id) {
uint16_t num_logs = get_num_logs();
if (packet.id > num_logs || packet.id < 1) {
// request for an invalid log; cancel any current download
transfer_activity = IDLE;
return;
}
uint32_t time_utc, size;
get_log_info(packet.id, size, time_utc);
_log_num_data = packet.id;
_log_data_size = size;
uint16_t end;
get_log_boundaries(packet.id, _log_data_page, end);
}
_log_data_offset = packet.ofs;
if (_log_data_offset >= _log_data_size) {
_log_data_remaining = 0;
} else {
_log_data_remaining = _log_data_size - _log_data_offset;
}
if (_log_data_remaining > packet.count) {
_log_data_remaining = packet.count;
}
transfer_activity = SENDING;
_log_sending_link = &link;
handle_log_send();
}
