The HRT call processing normally happens via HW timer interrupt
handler. Since the POSIX port has no ISR handling, the HP work
queue is used.
Instead of irq_save() and irq_restore() calls to disable/enable
interrupts, a mutex is used to protect each queue.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
In STM32, the ISR handler calls hrt_call_invoke(). There is no
interrupt timer inthe POSIX port so a work item is put on the
high priority work queue to expire at the next event (in ticks)
or at the next max delay interval.
Counter wrapping is likely still not handled properly in this code.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Changed "linux" target to "posix". Most of the changes are shared with
QuRT and with OSX. The Linux specific parts are in for i2c which uses
<linux/i2c.h> and <linux/i2c-dev.h>.
There is also a check for __PX4_LINUX in mavlink for a tty ioctl that is
not supported.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Mark Charlebois