* [WIP] i2c_spi_buses: add '-q' for quiet startup flag
And enable for optional board sensors.
* ROMFS: rc.sensors try starting all optional I2C sensors quietly
Co-authored-by: Daniel Agar <daniel@agar.ca>
- new intrusive linked list container (c++ template) that sorts on insertion
- primarily for convenience inspecting things in the system like uORB or WorkQueues
- uorb status or top sorted alphabetically
- work_queue status threads sorted by priority, then items sorted alphabetically within each
- perform full sensor signal path reset and wait for max time (100 ms)
- issue full sensor reset on any error
- always read FIFO count before transfersj
- only allocate drdy perf counter if GPIO is available
- only record start time on first run rather than init
- increase name length
- round average interval to nearest microsecond
- basic formatting consistency (google style guide)
- always check with state machine before reboot/shutdown
- respect BOARD_HAS_POWER_CONTROL (shutdown from command, low battery, power button)
- px4_shutdown_request add optional delay and always execute from HPWORK
- px4_shutdown_request split out px4_reboot_request
- increase stack sizes to run cleanly under stackcheck
- this is likely overkill for most boards, but using stackcheck to set our minimum ensures we have a very safe margin on regular builds and it's something we can currently afford
- remove holybro_durandal-v1_stackcheck from test rack (there's only one unit)
- update to NuttX with stm32f4 and stm32f7 SPI DMA internal buffers
- remove explicit DMA buffer allocations from new IMU drivers
- restore original BOARD_DMA_ALLOC_POOL_SIZE
- decrease SPI DMA thresholds based on fmu-v2/v3/v4/v5 bench testing
instead of a static per-driver array.
Reduces BSS RAM usage by a couple of 100 Bytes (linear increase with num
drivers).
Downsides:
- a bit more runtime overhead
- less isolation, locking required
- a bit more complex
Running the sensors module out of the same WQ thread as the estimator, position, and attitude controllers is a bit safer and prevents potential priority and starvation issues. There is a very small increase in latency (~50 us) between sensors and ekf2 execution (on average). This also saves a little bit of memory (~ 3 kB) and cpu (~1-1.5% depending on the board).
Chip-select and SPI initialization uses the new config, whereas the drivers
still use the existing defines.
The configuration in board_config.h can be removed after all drivers are
updated.
The existing behavior is unexpected: if the work item is already on the
runnable queue, it will still be triggered after a call to ScheduleClear().
This can lead to race conditions.
Daniel Agar
Beat Küng
David Sidrane
Julian Oes
Matthias Grob
mcsauder
Jacob Dahl
AlexKlimaj
SalimTerryLi