Add a helper function to convert from a string buffer passed in the
args[] parameter to an actual pointer. This avoids all the callers
needing to perfrom pointer manipulation.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Make it clear that the name of the constant being defined is a string.
When the value being defined is also a string, use a new
DECL_CONSTANT_STR() macro.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Send the ack after processing commands - this gives the host code more
information on serial buffer utilization.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Prefer using 'uint8_t' buffers as it is too easy to run into C sign
extension problems with 'char' buffers. Prefer using 'uint_fast8_t'
for buffer lengths as gcc does a better job compiling them on 32bit
mcus.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The command_encodef() can read the max_size parameter directly from
the 'struct command_encoder' passed into it. Also, there is no need
to check that a message will fit in a buffer if the buffer is declared
to be MESSAGE_MAX in size.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Change the command dispatch and response generation so that most of
the work is done on pru0 instead of pru1. This allows more code to
fit into the limited space on pru1.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Export a new console_sendf() function from the board code instead of
console_get_output() and console_push_output(). This enables more
flexibility in how the board specific code produces output.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Move the command_task() code from the generic code to the board
specific code. This enables more flexibility in how the board
specific code processes input.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Avoid generating unique ids via memory locations and linker scripts.
Instead, generate them using code produced by buildcommands.py.
Utilize gcc's ability to perform static string comparisons at compile
time to produce a unique id for each unique string.
This fixes a build failure on ARM introduced in 142b92b8. It also
reduces the complexity of the build.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
On some architectures, gcc will allocate a register for inline
assembler with an "m" constraint. Use "i" to avoid that.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a DECL_CONSTANT macro to allow the firmware to define constants
that are to be exported to the host during the "identify" phase. This
replaces the existing hardcoded mechanism of scanning the Kconfig
header file for certain constants.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Kevin O'Connor