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AO_READ_AGAIN doesn't fit in a char anymore now that stdio is 8-bit
clean, everyone using pollchar must use an 'int' variable to capture
the whole value from pollchar.
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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Support multiple serial ports more cleanly
Split out parts of ao.h into separate feature header files
Signed-off-by: Keith Packard <keithp@keithp.com>
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This beeps out flight state changes and max altitude at landing, just
like the altimeter.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This code is useful whenever the BT stuff is acting up, so just leave
the source in place, turned off by default.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Split out sources into separate directories:
core: architecture and product independent bits
cc1111: cc1111-specific code
drivers: architecture independent drivers
product: product-specific sources and Makefile fragments
util: scripts for building stuff
This should have no effect on the built products, but testing is encouraged
Signed-off-by: Keith Packard <keithp@keithp.com>
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