param_t
param_for_used_index(unsigned index)
{
#if 0
int count = get_param_info_count();
if (count && index < count) {
/* walk all params and count used params */
unsigned used_count = 0;
for (unsigned i = 0; i < (unsigned)size_param_changed_storage_bytes; i++) {
for (unsigned j = 0; j < bits_per_allocation_unit; j++) {
if (param_changed_storage[i] & (1 << j)) {
/* we found the right used count,
* return the param value
*/
if (index == used_count) {
return (param_t)(i * bits_per_allocation_unit + j);
}
used_count++;
}
}
}
}
return PARAM_INVALID;
#else
return param_for_index(index);
#endif
}
void
MavlinkParametersManager::send(const hrt_abstime t)
{
/* send all parameters if requested */
if (_send_all_index >= 0) {
/* skip if no space is available */
if (_mavlink->get_free_tx_buf() < get_size()) {
return;
}
/* look for the first parameter which is used */
param_t p;
do {
/* walk through all parameters, including unused ones */
p = param_for_index(_send_all_index);
_send_all_index++;
} while (p != PARAM_INVALID && !param_used(p));
if (p != PARAM_INVALID) {
send_param(p);
}
if ((p == PARAM_INVALID) || (_send_all_index >= (int) param_count())) {
_send_all_index = -1;
}
}
}
void
MavlinkParametersManager::send(const hrt_abstime t)
{
/* send all parameters if requested, but only after the system has booted */
if (_send_all_index >= 0 && _mavlink->boot_complete()) {
/* skip if no space is available */
if (_mavlink->get_free_tx_buf() < get_size()) {
return;
}
/* look for the first parameter which is used */
param_t p;
do {
/* walk through all parameters, including unused ones */
p = param_for_index(_send_all_index);
_send_all_index++;
} while (p != PARAM_INVALID && !param_used(p));
if (p != PARAM_INVALID) {
send_param(p);
}
if ((p == PARAM_INVALID) || (_send_all_index >= (int) param_count())) {
_send_all_index = -1;
}
} else if (_send_all_index == 0 && hrt_absolute_time() > 20 * 1000 * 1000) {
/* the boot did not seem to ever complete, warn user and set boot complete */
_mavlink->send_statustext_critical("WARNING: SYSTEM BOOT INCOMPLETE. CHECK CONFIG.");
_mavlink->set_boot_complete();
}
}
bool
MavlinkParametersManager::send_untransmitted()
{
bool sent_one = false;
// Check for untransmitted system parameters
if (_mavlink_parameter_sub < 0) {
_mavlink_parameter_sub = orb_subscribe(ORB_ID(parameter_update));
}
bool param_ready;
orb_check(_mavlink_parameter_sub, ¶m_ready);
if (param_ready) {
// Clear the ready flag
struct parameter_update_s value;
orb_copy(ORB_ID(parameter_update), _mavlink_parameter_sub, &value);
// Schedule an update if not already the case
if (_param_update_time == 0) {
_param_update_time = value.timestamp;
_param_update_index = 0;
}
}
if ((_param_update_time != 0) && ((_param_update_time + 5 * 1000) < hrt_absolute_time())) {
param_t param = 0;
// send out all changed values
do {
// skip over all parameters which are not invalid and not used
do {
param = param_for_index(_param_update_index);
++_param_update_index;
} while (param != PARAM_INVALID && !param_used(param));
// send parameters which are untransmitted while there is
// space in the TX buffer
if ((param != PARAM_INVALID) && param_value_unsaved(param)) {
int ret = send_param(param);
char buf[100];
strncpy(&buf[0], param_name(param), MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
sent_one = true;
if (ret != PX4_OK) {
break;
}
}
} while ((_mavlink->get_free_tx_buf() >= get_size()) && (_param_update_index < (int) param_count()));
// Flag work as done once all params have been sent
if (_param_update_index >= (int) param_count()) {
_param_update_time = 0;
}
}
return sent_one;
}
bool
MavlinkParametersManager::send_one()
{
if (_send_all_index >= 0 && _mavlink->boot_complete()) {
/* send all parameters if requested, but only after the system has booted */
/* The first thing we send is a hash of all values for the ground
* station to try and quickly load a cached copy of our params
*/
if (_send_all_index == PARAM_HASH) {
/* return hash check for cached params */
uint32_t hash = param_hash_check();
/* build the one-off response message */
mavlink_param_value_t msg;
msg.param_count = param_count_used();
msg.param_index = -1;
strncpy(msg.param_id, HASH_PARAM, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
msg.param_type = MAV_PARAM_TYPE_UINT32;
memcpy(&msg.param_value, &hash, sizeof(hash));
mavlink_msg_param_value_send_struct(_mavlink->get_channel(), &msg);
/* after this we should start sending all params */
_send_all_index = 0;
/* No further action, return now */
return true;
}
/* look for the first parameter which is used */
param_t p;
do {
/* walk through all parameters, including unused ones */
p = param_for_index(_send_all_index);
_send_all_index++;
} while (p != PARAM_INVALID && !param_used(p));
if (p != PARAM_INVALID) {
send_param(p);
}
if ((p == PARAM_INVALID) || (_send_all_index >= (int) param_count())) {
_send_all_index = -1;
return false;
} else {
return true;
}
} else if (_send_all_index == PARAM_HASH && hrt_absolute_time() > 20 * 1000 * 1000) {
/* the boot did not seem to ever complete, warn user and set boot complete */
_mavlink->send_statustext_critical("WARNING: SYSTEM BOOT INCOMPLETE. CHECK CONFIG.");
_mavlink->set_boot_complete();
}
return false;
}
int mavlink_pm_queued_send()
{
if (mavlink_param_queue_index < param_count()) {
mavlink_pm_send_param(param_for_index(mavlink_param_queue_index));
mavlink_param_queue_index++;
return 0;
} else {
return 1;
}
}
void
MavlinkParametersManager::send(const hrt_abstime t)
{
/* send all parameters if requested */
if (_send_all_index >= 0) {
send_param(param_for_index(_send_all_index));
_send_all_index++;
if (_send_all_index >= (int) param_count()) {
_send_all_index = -1;
}
}
}
static int
do_show_index(const char *index, bool used_index)
{
char *end;
int i = strtol(index, &end, 10);
param_t param;
int32_t ii;
float ff;
if (used_index) {
param = param_for_used_index(i);
} else {
param = param_for_index(i);
}
if (param == PARAM_INVALID) {
PX4_ERR("param not found for index %u", i);
return 1;
}
PARAM_PRINT("index %d: %c %c %s [%d,%d] : ", i, (param_used(param) ? 'x' : ' '),
param_value_unsaved(param) ? '*' : (param_value_is_default(param) ? ' ' : '+'),
param_name(param), param_get_used_index(param), param_get_index(param));
switch (param_type(param)) {
case PARAM_TYPE_INT32:
if (!param_get(param, &ii)) {
PARAM_PRINT("%ld\n", (long)ii);
}
break;
case PARAM_TYPE_FLOAT:
if (!param_get(param, &ff)) {
PARAM_PRINT("%4.4f\n", (double)ff);
}
break;
default:
PARAM_PRINT("<unknown type %d>\n", 0 + param_type(param));
}
return 0;
}
void
MavlinkParametersManager::handle_message(const mavlink_message_t *msg)
{
switch (msg->msgid) {
case MAVLINK_MSG_ID_PARAM_REQUEST_LIST: {
/* request all parameters */
mavlink_param_request_list_t req_list;
mavlink_msg_param_request_list_decode(msg, &req_list);
if (req_list.target_system == mavlink_system.sysid &&
(req_list.target_component == mavlink_system.compid || req_list.target_component == MAV_COMP_ID_ALL)) {
_send_all_index = 0;
_mavlink->send_statustext_info("[pm] sending list");
}
break;
}
case MAVLINK_MSG_ID_PARAM_SET: {
/* set parameter */
if (msg->msgid == MAVLINK_MSG_ID_PARAM_SET) {
mavlink_param_set_t set;
mavlink_msg_param_set_decode(msg, &set);
if (set.target_system == mavlink_system.sysid &&
(set.target_component == mavlink_system.compid || set.target_component == MAV_COMP_ID_ALL)) {
/* local name buffer to enforce null-terminated string */
char name[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN + 1];
strncpy(name, set.param_id, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
/* enforce null termination */
name[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN] = '\0';
/* attempt to find parameter, set and send it */
param_t param = param_find(name);
if (param == PARAM_INVALID) {
char buf[MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN];
sprintf(buf, "[pm] unknown param: %s", name);
_mavlink->send_statustext_info(buf);
} else {
/* set and send parameter */
param_set(param, &(set.param_value));
send_param(param);
}
}
}
break;
}
case MAVLINK_MSG_ID_PARAM_REQUEST_READ: {
/* request one parameter */
mavlink_param_request_read_t req_read;
mavlink_msg_param_request_read_decode(msg, &req_read);
if (req_read.target_system == mavlink_system.sysid &&
(req_read.target_component == mavlink_system.compid || req_read.target_component == MAV_COMP_ID_ALL)) {
/* when no index is given, loop through string ids and compare them */
if (req_read.param_index < 0) {
/* local name buffer to enforce null-terminated string */
char name[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN + 1];
strncpy(name, req_read.param_id, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
/* enforce null termination */
name[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN] = '\0';
/* attempt to find parameter and send it */
send_param(param_find(name));
} else {
/* when index is >= 0, send this parameter again */
send_param(param_for_index(req_read.param_index));
}
}
break;
}
default:
break;
}
}
void
MavlinkParametersManager::handle_message(const mavlink_message_t *msg)
{
switch (msg->msgid) {
case MAVLINK_MSG_ID_PARAM_REQUEST_LIST: {
/* request all parameters */
mavlink_param_request_list_t req_list;
mavlink_msg_param_request_list_decode(msg, &req_list);
if (req_list.target_system == mavlink_system.sysid &&
(req_list.target_component == mavlink_system.compid || req_list.target_component == MAV_COMP_ID_ALL)) {
_send_all_index = 0;
_mavlink->send_statustext_info("[pm] sending list");
}
break;
}
case MAVLINK_MSG_ID_PARAM_SET: {
/* set parameter */
if (msg->msgid == MAVLINK_MSG_ID_PARAM_SET) {
mavlink_param_set_t set;
mavlink_msg_param_set_decode(msg, &set);
if (set.target_system == mavlink_system.sysid &&
(set.target_component == mavlink_system.compid || set.target_component == MAV_COMP_ID_ALL)) {
/* local name buffer to enforce null-terminated string */
char name[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN + 1];
strncpy(name, set.param_id, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
/* enforce null termination */
name[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN] = '\0';
/* attempt to find parameter, set and send it */
param_t param = param_find(name);
if (param == PARAM_INVALID) {
char buf[MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN];
sprintf(buf, "[pm] unknown param: %s", name);
_mavlink->send_statustext_info(buf);
} else {
/* set and send parameter */
param_set(param, &(set.param_value));
send_param(param);
}
}
}
break;
}
case MAVLINK_MSG_ID_PARAM_REQUEST_READ: {
/* request one parameter */
mavlink_param_request_read_t req_read;
mavlink_msg_param_request_read_decode(msg, &req_read);
if (req_read.target_system == mavlink_system.sysid &&
(req_read.target_component == mavlink_system.compid || req_read.target_component == MAV_COMP_ID_ALL)) {
/* when no index is given, loop through string ids and compare them */
if (req_read.param_index < 0) {
/* local name buffer to enforce null-terminated string */
char name[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN + 1];
strncpy(name, req_read.param_id, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
/* enforce null termination */
name[MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN] = '\0';
/* attempt to find parameter and send it */
send_param(param_find(name));
} else {
/* when index is >= 0, send this parameter again */
send_param(param_for_index(req_read.param_index));
}
}
break;
}
case MAVLINK_MSG_ID_PARAM_MAP_RC: {
/* map a rc channel to a parameter */
mavlink_param_map_rc_t map_rc;
mavlink_msg_param_map_rc_decode(msg, &map_rc);
if (map_rc.target_system == mavlink_system.sysid &&
(map_rc.target_component == mavlink_system.compid ||
map_rc.target_component == MAV_COMP_ID_ALL)) {
/* Copy values from msg to uorb using the parameter_rc_channel_index as index */
size_t i = map_rc.parameter_rc_channel_index;
_rc_param_map.param_index[i] = map_rc.param_index;
strncpy(&(_rc_param_map.param_id[i][0]), map_rc.param_id, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
/* enforce null termination */
_rc_param_map.param_id[i][MAVLINK_MSG_PARAM_MAP_RC_FIELD_PARAM_ID_LEN] = '\0';
_rc_param_map.scale[i] = map_rc.scale;
_rc_param_map.value0[i] = map_rc.param_value0;
_rc_param_map.value_min[i] = map_rc.param_value_min;
_rc_param_map.value_max[i] = map_rc.param_value_max;
if (map_rc.param_index == -2) { // -2 means unset map
_rc_param_map.valid[i] = false;
} else {
_rc_param_map.valid[i] = true;
}
_rc_param_map.timestamp = hrt_absolute_time();
if (_rc_param_map_pub < 0) {
_rc_param_map_pub = orb_advertise(ORB_ID(rc_parameter_map), &_rc_param_map);
} else {
orb_publish(ORB_ID(rc_parameter_map), _rc_param_map_pub, &_rc_param_map);
}
}
break;
}
default:
break;
}
}
bool ParameterTest::exportImportAll()
{
static constexpr float MAGIC_FLOAT_VAL = 0.217828f;
// backup current parameters
const char *param_file_name = PX4_STORAGEDIR "/param_backup";
int fd = open(param_file_name, O_WRONLY | O_CREAT, PX4_O_MODE_666);
if (fd < 0) {
PX4_ERR("open '%s' failed (%i)", param_file_name, errno);
return false;
}
int result = param_export(fd, false);
if (result != PX4_OK) {
PX4_ERR("param_export failed");
close(fd);
return false;
}
close(fd);
bool ret = true;
int N = param_count();
// set all params to corresponding param_t value
for (unsigned i = 0; i < N; i++) {
param_t p = param_for_index(i);
if (p == PARAM_INVALID) {
PX4_ERR("param invalid: %d(%d)", p, i);
break;
}
if (param_type(p) == PARAM_TYPE_INT32) {
const int32_t set_val = p;
if (param_set_no_notification(p, &set_val) != PX4_OK) {
PX4_ERR("param_set_no_notification failed for: %d", p);
ut_assert("param_set_no_notification failed", false);
}
int32_t get_val = 0;
if (param_get(p, &get_val) != PX4_OK) {
PX4_ERR("param_get failed for: %d", p);
ut_assert("param_set_no_notification failed", false);
}
ut_compare("value for param doesn't match default value", p, get_val);
}
if (param_type(p) == PARAM_TYPE_FLOAT) {
const float set_val = (float)p + MAGIC_FLOAT_VAL;
if (param_set_no_notification(p, &set_val) != PX4_OK) {
PX4_ERR("param_set_no_notification failed for: %d", p);
ut_assert("param_set_no_notification failed", false);
}
float get_val = 0.0f;
if (param_get(p, &get_val) != PX4_OK) {
PX4_ERR("param_get failed for: %d", p);
ut_assert("param_set_no_notification failed", false);
}
ut_compare("value for param doesn't match default value", p, (float)p + MAGIC_FLOAT_VAL);
}
}
// save
if (param_save_default() != PX4_OK) {
PX4_ERR("param_save_default failed");
return false;
}
// zero all params and verify, but don't save
for (unsigned i = 0; i < N; i++) {
param_t p = param_for_index(i);
if (param_type(p) == PARAM_TYPE_INT32) {
const int32_t set_val = 0;
if (param_set_no_notification(p, &set_val) != PX4_OK) {
PX4_ERR("param set failed: %d", p);
ut_assert("param_set_no_notification failed", false);
}
int32_t get_val = -1;
if (param_get(p, &get_val) != PX4_OK) {
PX4_ERR("param_get failed for: %d", p);
ut_assert("param_set_no_notification failed", false);
}
ut_compare("value for param doesn't match default value", set_val, get_val);
}
if (param_type(p) == PARAM_TYPE_FLOAT) {
float set_val = 0.0f;
if (param_set_no_notification(p, &set_val) != PX4_OK) {
PX4_ERR("param set failed: %d", p);
ut_assert("param_set_no_notification failed", false);
}
float get_val = -1.0f;
if (param_get(p, &get_val) != PX4_OK) {
PX4_ERR("param_get failed for: %d", p);
ut_assert("param_set_no_notification failed", false);
}
ut_compare("value for param doesn't match default value", set_val, get_val);
}
}
// load saved params
if (param_load_default() != PX4_OK) {
PX4_ERR("param_save_default failed");
ret = true;
}
// check every param
for (unsigned i = 0; i < N; i++) {
param_t p = param_for_index(i);
if (param_type(p) == PARAM_TYPE_INT32) {
int32_t get_val = 0;
if (param_get(p, &get_val) != PX4_OK) {
PX4_ERR("param_get failed for: %d", p);
ut_assert("param_set_no_notification failed", false);
}
ut_compare("value for param doesn't match default value", p, get_val);
}
if (param_type(p) == PARAM_TYPE_FLOAT) {
float get_val = 0.0f;
if (param_get(p, &get_val) != PX4_OK) {
PX4_ERR("param_get failed for: %d", p);
ut_assert("param_set_no_notification failed", false);
}
ut_compare("value for param doesn't match default value", p, (float)p + MAGIC_FLOAT_VAL);
}
}
param_reset_all();
// restore original params
fd = open(param_file_name, O_RDONLY);
if (fd < 0) {
PX4_ERR("open '%s' failed (%i)", param_file_name, errno);
return false;
}
result = param_import(fd);
close(fd);
if (result < 0) {
PX4_ERR("importing from '%s' failed (%i)", param_file_name, result);
return false;
}
// save
if (param_save_default() != PX4_OK) {
PX4_ERR("param_save_default failed");
return false;
}
return ret;
}
int mavlink_pm_send_param_for_index(uint16_t index)
{
return mavlink_pm_send_param(param_for_index(index));
}
void
MavlinkParametersManager::send(const hrt_abstime t)
{
bool space_available = _mavlink->get_free_tx_buf() >= get_size();
/* Send parameter values received from the UAVCAN topic */
if (_uavcan_parameter_value_sub < 0) {
_uavcan_parameter_value_sub = orb_subscribe(ORB_ID(uavcan_parameter_value));
}
bool param_value_ready;
orb_check(_uavcan_parameter_value_sub, ¶m_value_ready);
if (space_available && param_value_ready) {
struct uavcan_parameter_value_s value;
orb_copy(ORB_ID(uavcan_parameter_value), _uavcan_parameter_value_sub, &value);
mavlink_param_value_t msg;
msg.param_count = value.param_count;
msg.param_index = value.param_index;
strncpy(msg.param_id, value.param_id, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
if (value.param_type == MAV_PARAM_TYPE_REAL32) {
msg.param_type = MAVLINK_TYPE_FLOAT;
msg.param_value = value.real_value;
} else {
int32_t val;
val = (int32_t)value.int_value;
memcpy(&msg.param_value, &val, sizeof(int32_t));
msg.param_type = MAVLINK_TYPE_INT32_T;
}
_mavlink->send_message(MAVLINK_MSG_ID_PARAM_VALUE, &msg, value.node_id);
} else if (_send_all_index >= 0 && _mavlink->boot_complete()) {
/* send all parameters if requested, but only after the system has booted */
/* skip if no space is available */
if (!space_available) {
return;
}
/* The first thing we send is a hash of all values for the ground
* station to try and quickly load a cached copy of our params
*/
if (_send_all_index == PARAM_HASH) {
/* return hash check for cached params */
uint32_t hash = param_hash_check();
/* build the one-off response message */
mavlink_param_value_t msg;
msg.param_count = param_count_used();
msg.param_index = -1;
strncpy(msg.param_id, HASH_PARAM, MAVLINK_MSG_PARAM_VALUE_FIELD_PARAM_ID_LEN);
msg.param_type = MAV_PARAM_TYPE_UINT32;
memcpy(&msg.param_value, &hash, sizeof(hash));
_mavlink->send_message(MAVLINK_MSG_ID_PARAM_VALUE, &msg);
/* after this we should start sending all params */
_send_all_index = 0;
/* No further action, return now */
return;
}
/* look for the first parameter which is used */
param_t p;
do {
/* walk through all parameters, including unused ones */
p = param_for_index(_send_all_index);
_send_all_index++;
} while (p != PARAM_INVALID && !param_used(p));
if (p != PARAM_INVALID) {
send_param(p);
}
if ((p == PARAM_INVALID) || (_send_all_index >= (int) param_count())) {
_send_all_index = -1;
}
} else if (_send_all_index == PARAM_HASH && hrt_absolute_time() > 20 * 1000 * 1000) {
/* the boot did not seem to ever complete, warn user and set boot complete */
_mavlink->send_statustext_critical("WARNING: SYSTEM BOOT INCOMPLETE. CHECK CONFIG.");
_mavlink->set_boot_complete();
}
}
