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BAROSIM: Fixed error in transfer function 

The transfer function would previously return error if the receive
buffer length was 0. This appears to be a valid condition for
requesting a measurmement be taken but no data returned.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>
This commit is contained in:
Mark Charlebois 2015-05-18 13:29:20 -07:00
parent 466db74d29
commit 791d780bb8
2 changed files with 13 additions and 8 deletions
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12
src/platforms/posix/drivers/barosim/baro.cpp
View File

@ -280,7 +280,7 @@ BAROSIM::init()
/* do temperature first */
if (OK != measure()) {
ret = -EIO;
PX4_WARN("temp measure failed");
PX4_ERR("temp measure failed");
break;
}
@ -288,14 +288,14 @@ BAROSIM::init()
if (OK != collect()) {
ret = -EIO;
PX4_WARN("temp collect failed");
PX4_ERR("temp collect failed");
break;
}
/* now do a pressure measurement */
if (OK != measure()) {
ret = -EIO;
PX4_WARN("pressure collect failed");
PX4_ERR("pressure collect failed");
break;
}
@ -303,7 +303,7 @@ BAROSIM::init()
if (OK != collect()) {
ret = -EIO;
PX4_WARN("pressure collect failed");
PX4_ERR("pressure collect failed");
break;
}
@ -316,7 +316,7 @@ BAROSIM::init()
&_orb_class_instance, (is_external()) ? ORB_PRIO_HIGH : ORB_PRIO_DEFAULT);
if (_baro_topic == (orb_advert_t)(-1)) {
PX4_WARN("failed to create sensor_baro publication");
PX4_ERR("failed to create sensor_baro publication");
}
//PX4_WARN("sensor_baro publication %ld", _baro_topic);
@ -728,7 +728,7 @@ BAROSIM::collect()
orb_publish(ORB_ID(sensor_baro), _baro_topic, &report);
}
else {
PX4_ERR("BAROSIM::collect _baro_topic not initialized");
PX4_WARN("BAROSIM::collect _baro_topic not initialized");
}
}

9
src/platforms/posix/drivers/barosim/baro_sim.cpp
View File

@ -201,15 +201,20 @@ BARO_SIM::transfer(const uint8_t *send, unsigned send_len,
{
// TODO add Simulation data connection so calls retrieve
// data from the simulator
if (send_len != 1 || send[0] != 0 || recv_len != 3) {
if (recv_len == 0) {
PX4_DEBUG("BARO_SIM measurement requested");
}
else if (send_len != 1 || send[0] != 0 || recv_len != 3) {
PX4_WARN("BARO_SIM::transfer invalid param %u %u %u\n", send_len, send[0], recv_len);
return 1;
}
else {
Simulator *sim = Simulator::getInstance();
if (sim == NULL) {
PX4_ERR("Error BARO_SIM::transfer no simulator \n");
return -ENODEV;
}
PX4_DEBUG("BARO_SIM::transfer getting sample\n");
sim->getBaroSample(recv, recv_len);
}
return 0;