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We were stealing one value (0xff) in the return value from pollchar to
indicate 'not ready yet'. Instead of doing that, use the integer value
-1 and have pollchar return an int instead of a char. That
necessitated cleaning a few other bits to make sure that 0xff wouldn't
get promoted to -1 on accident.
Signed-off-by: Keith Packard <keithp@keithp.com>
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sdcc offers __critical as a machine-independent way to block
interrupts, but as gcc doesn't, we need to use a compiler-independent
construct instead. ao_arch_critical has been around since the AVR
port, but some old __critical usages remained.
This fixes a bunch of random hangs when communicating with MM over USB
or the radio as the various stdio loops were running without
interrupts blocked between the test and the sleep.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This eliminates the packet sequence matching for the first packet,
allowing outstanding send data to arrive from the master instead of
ignoring packets with data until they match the seqno
Signed-off-by: Keith Packard <keithp@keithp.com>
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This adds a new 's' command to TeleDongle to report RSSI value from last
received packet, and then has AltosUI request that value when closing
the remote link.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This blocks starting the decoder until all of the data have arrived so
that the time spent in the decoder is easily computed.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Make the FEC code just set the CRC_OK bit like the cc1111 radio does;
eliminates a bunch of weird conventions across the FEC API.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This does "something" in radio test mode, appearing to generate a
730MHz signal.
Signed-off-by: Keith Packard <keithp@keithp.com>
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