mjb/altos/src/kernel, branch debian/1.6.8-5

altos/arm: Align data so that gcc 5.4 doesn't do byte-accesses. Add -Wcast-align

2017-01-25T19:21:43+00:00

Gcc 5.4.1 tracks alignment of data through assignments, so that a uint32_t pointer which comes from byte-aligned uint8_t data: extern uint8_t foo[]; uint32_t *q = (void *) foo; Fetches and stores through this pointer are done bytewise. This is slow (meh), but if q references a device register, things to bad very quickly. This patch works around this bug in the compiler by adding __attribute__((aligned(4))) tags to some variables, or changing them from uint8_t to uint32_t. Places doing this will now be caught as I've added -Wcast-align to the compiler flags. That required adding (void *) casts, after the relevant code was checked to make sure the compiler could tell that the addresses were aligned. Signed-off-by: Keith Packard

altos: Don't switch to flight 0 when log fills in flight

2016-07-27T20:26:22+00:00

If the log is full at startup, we want to transmit flight 0 to let the ground station know. However, we don't want to switch to flight 0 in flight, so save the initial telemetry flight number (0 or the real flight number) at startup and use that throughout the flight. Signed-off-by: Keith Packard

altos: Expose cc1200 radio test functions for telemini bringup

2016-07-27T20:24:57+00:00

This exposes the cc1200 radio test function so we can load special test firmware in telemini to do the radio cal as it has no USB to perform that interactively. Signed-off-by: Keith Packard

fixup for interleave

2016-07-27T20:23:06+00:00

altos: Keep telemetry and command output from interleaving

2016-07-27T19:24:27+00:00

When monitoring telemetry, the frame needs to be sent together on one line, not split with the output of a command (like 'a') mixed in. Use a mutex for products with monitoring to keep command output and telemetry output each on separate lines. Signed-off-by: Keith Packard

Switch from GPLv2 to GPLv2+

2016-07-12T22:41:41+00:00

Signed-off-by: Keith Packard

altos: Leave USB enabled in flight with -DDEBUG=1

2016-06-30T02:17:45+00:00

This leaves the command line available for diagnostics when debugging. Signed-off-by: Keith Packard

altos: Make task list output more useful

2016-06-30T02:17:45+00:00

Add the timeout value and task id Signed-off-by: Keith Packard

altos: Make ao_delay(0) not wait forever

2016-06-30T02:17:45+00:00

ao_delay() is implemented on top of ao_sleep_for, and ao_sleep_for uses the timeout value of 0 to indicate an infinite timeout. Calls to ao_delay for 0 ticks would unintentionally hit this case and end up waiting forever.x Signed-off-by: Keith Packard

altos: Add debug check for irq block when editing task queues

2016-06-30T02:17:45+00:00

List manipulation operations are not atomic, so interrupts need to be blocked while changing them. Signed-off-by: Keith Packard