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Just fixing the type of a local variable holding a character
passed from the packet link to usb.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Waking up a task waiting on some random object is a bad idea. Fix
the waiters to look for suitable signalling.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Instead of aborting the DMA and radio operation and expecting that to
be handled reasonably by the radio receiving task, rewrite things so
that the abort function just wakes the receiving task while that
terminates the DMA and cleans up the radio.
This eliminates all kinds of nasty bugs dealing with radio abort
smashing the radio registers at the wrong time, or interrupting a
radio transmission.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Instead of constantly bashing the packet master thread, let it shut
itself down in an orderly fashion. It will shut down fairly quickly as
all of the activities in that thread are bounded. Otherwise, the
master packet thread might leave mutexes locked and all sorts of other
horrors.
Tested on Linux and Mac OS X and shown to be reliable.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Make sure the master radio tasks don't get stuck waiting for an
incoming packet again by aborting the radio each time we poke the
tasks.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Just in case the last command sent hasn't been transmitted, hang
around for up to a second waiting for the data to get across the link.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Untested, but it 'should' work. Need to add callsign setting to packet
mode users.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Oh, right SDCC has '__critical' to mark sections of code that need to
run with interrupts disabled; no need to use EA = 0 and EA = 1.
Signed-off-by: Keith Packard <keithp@keithp.com>
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To receive telemetry after disabling the packet system, the radio must
be reconfigured for telemetry mode.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Using the implicit stdio functions (putchar/getchar/flush) would
result in essentially random redirection of each, depending on whether
the packet code had characters available when getchar was called. This
would cause lockups in putchar.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This keeps the packet thread from blocking on USB and also makes the
flush happen after every packet (slightly more USB traffic, but
packets are slow anyway).
Signed-off-by: Keith Packard <keithp@keithp.com>
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This splits the packet code into master/slave halves and hooks the
slave side up to the getchar/putchar/flush logic in ao_stdio.c
Signed-off-by: Keith Packard <keithp@keithp.com>
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