- reorder and document members.
- remove tentative of vertical alignement
- like was done for accumulated values, move the calibration
values to a struct
This converts MS56XX to use the thread started by SPI/I2C instead of
using the timer thread. This also fixes a possible starvation of the
main thread:
1) INS driver registers itself to be sampled on timer thread
2) MS56XX registers itself to be sampled on timer thread
3) Main thread waits for a sample from INS with
ins.wait_for_sample()
4) timer thread is waiting on update from MS56XX and consequently
the main thread is waiting on an I2C/SPI transfer
Besides this starvation there's another one due to reuse of the timer
lock in order to pump values from the timer thread to the main thread. A
call to the update() method when we have a sample available would need
to wait on any other driver holding the timer lock.
Now there's a lock just to pass the new values from the bus thread to
the main thread with a very tiny critical region, not waiting on any
bus transfers and/or syscalls.
We aren't going to use all the poller infra for now and we need it's
behavior a little bit different for what we are going to use:
- Do not use any "fair" time for each ready fd since we don't want
to set a timeout
- Allow to set the fd on Pollable after constructing it since we are
likely to embed Pollable inside other structs and just later be
able to open an fd.
- Let caller use the epoll flags directly - this is not in AP_HAL,
so there's no need to abstract them
Add system's polling infrastructure to be notified whenever a
file descriptor is ready to be read from or written to.
Adds a few classes:
* Poller, as an interface to epoll()
* Pollable, as an interface to a file descriptor
Replace the previous not-implemented interface with a set of new methods
that can be resonably implemented:
- register_periodic_callback() now receives a functor returning bool
to easily allow "oneshot" timers
- adjust_periodic_callback() allows the caller to change the timer
for a specific handle. This way drivers like MS5611 can adjust the
timer depending on its state machine: the time to sample
temperature is smaller than the time to get a pressure sample
- add unregister_callback(): since we have an opaque pointer, we
can't tell the user to just delete it in order to unregister the
callback
../../libraries/AP_HAL_Linux/SPIDevice.cpp: In member function ‘virtual AP_HAL::OwnPtr<AP_HAL::SPIDevice> Linux::SPIDeviceManager::get_device(const char*)’:
../../libraries/AP_HAL_Linux/SPIDevice.cpp:337:27: warning: comparison is always false due to limited range of data type [-Wtype-limits]
for (uint8_t i = 0; i < _n_device_desc; i++) {
~~^~~~~~~~~~~~~~~~
Define a dummy device to remove warning.
This centralized private header encourages centralizing things on
umbrella headers that are a pain to maintain. Force each part of
AP_HAL_Linux to include what is used.
Make some member variables protected to follow what we do in other
places (and there's no reason to be private).
Move defines to .cpp to reduce their visibility.
This centralized namespace header encourages centralizing things on
umbrella headers that are a pain to maintain. Force each part of
AP_HAL_Linux to include what is used.
While at it, do some whitespace cleanups and minor changes to adhere to
coding style.
There was a bug on Waf's autoconfigure feature: if one of the files from the
cached list was deleted, the reconfiguration check would raise an exception
instead of forcing a reconfiguration. This update cherry-picks the commits
fixing that. A rebase can be done when there is a new release.
This is the only user of ADS7844 - we don't have it actually used in our
boards. Remove the example since we can later add a more generic one or
at least one that reuses a driver from our boards.
This method is needed when we want to transfer both tx and rx at the
same time, as opposed to common cases for sensors in which they are like
in the I2C interface: half-duplex.
This is selectable by a define and is never changed. Just remove
everything referencing it: we can come up with a better solution if it
is actually used later.
Otherwise, a call like `waf configure --board <foo> <command1>` will make
`<command1>` run on wrong variant if there was a different variant configured
previously, or an empty variant if the project is "distcleaned".
Randy Mackay
Lucas De Marchi
Leandro Pereira
Gustavo Jose de Sousa
Luiz Ywata
Peter Barker