Added the basic files to start building for QuRT

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Some virtual devices were mapped to /vdev.
Putting them back to /dev.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

list_devices will list virtual devices starting with "/dev/".
list_topics will list topics ("/obj/")

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The commander module now compiles for Linux.

state_machine_helper_linux.cpp iterates over the virtual devices vs
all devices under /dev as per NuttX when disabling publishing.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Quelch stderr when looking for clang-3.5.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Call to read should have been px4_read.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Simulator gets incoming MPU data and gives raw MPU data to the
gyrosim sensor when read.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The HIL driver now runs in the Linux build

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Simulator listens for UDP input data at port 9876.

Data is for now comma separated. Not yet connected to the various sim
classes: accelsim, gyrosim, magsim.

Barometer measurements not yet supported.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

px4_task_t is negative for failure conditions. It was set mistakenly to
pthread_t (which is unsigned) for LInux.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Fixed to use clang 3.4.2 on Ubuntu 12.04

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Was checking if argc < 1 and then accessing argv[1]. Fixed by
checking if argc < 2.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Converted px4_linux_tasks to C++ so the task struct can use a
string. Sometimes the name string was in the stack of the calling
function and goes out of scope.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The name of the app was adc but should have been adcsim.
Added a barometer simulator.

This will allow ms56711_linux to depend on real devices and not
simulation.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The sensor module is now able to run after the simulation modules are
started.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Use %zd instead of %d or %ld for sizeof(x).

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The code is based on mpu6000.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

GCC 4.8 and higher implement 16 byte static data alignment on 64-bit.
This means that the 24-byte param_info_s variables are 16 byte aligned
by GCC and that messes up the assumption that the address of the second
parameter is at &param[0]+sizeof(param[0]).
When compiled with clang it is true, with gcc is is not true.

See https://llvm.org/bugs/show_bug.cgi?format=multiple&id=18006



The fix is needed for GCC >=4.8 only. Clang works fine without this.

Added __attribute__((aligned(16))) to first member of param_info_s.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The calls to open, close, ioctl should have been px4_open, px4_close
and px4_ioctl.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

This is a bug and is unsafe. I am not going to change the code but
it needs to be changed to a cast to int or a <= as it is unsafe to
check for equality with 0.0F.

Disabled warning for GCC 4.9 for now.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Function was always returning -ENOTTY instead of the "ret" variable.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Previously it created 4 instances instead of the next available slot.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The list_tasks and list_devices commands will show
lists of running px4 threads and created virtual device nodes.

The list_builtins command was removes and the list of commands
will be shown if return is pressed.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The MS5611_SIM class is supposed to simulate data from a real
ms5611. An externl simulator could provide an interface to
call to get data that would be returned from a transfer() call.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Drivers simulating HW can implement specific behavior for calls to
transfer.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The getopt command uses global variables and is not thread safe.

Created a minimal px4_getopt version that supports options with
or without an arg, and random placement of options on the command line.

This version modifies the order of the args in argv as does the
POSIX version of getopt.

This assumes that argv[0] is the program name. Nuttx may not support
that properly in task_spawn.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

If sudo is used to run socat the tty cannot be opened by a regular user

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The simulator satisfies the dependencies for an accelerometer
being present.

The accel code compiles but is not fully functional.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

The simulated device satisfies the factory pattern used by
MS5611 to create a specific I2C or SPI device instance.

For now the functions just return true, but should/could
return simulated data.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

I have not been able to unravel why nullptr is passed as the device
path to the constructor of ms5611_i2c.

This crashes the VDev code as it expects to create a virtual driver
with the device path passed as devname. It causes VDev to do a
strncmp with null.

Using /vdev/ms5611_i2c as the name for the now.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Calls to open and close were used instead of px4_open and px4_close.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>