b9940f0e0d
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>
80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
#ifndef __COMMAND_H
|
|
#define __COMMAND_H
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h> // uint8_t
|
|
#include "ctr.h" // DECL_CTR
|
|
|
|
// Declare a function to run when the specified command is received
|
|
#define DECL_COMMAND(FUNC, MSG) \
|
|
_DECL_COMMAND(FUNC, 0, MSG)
|
|
#define DECL_COMMAND_FLAGS(FUNC, FLAGS, MSG) \
|
|
_DECL_COMMAND(FUNC, FLAGS, MSG)
|
|
|
|
// Flags for command handler declarations.
|
|
#define HF_IN_SHUTDOWN 0x01 // Handler can run even when in emergency stop
|
|
|
|
// Declare a constant exported to the host
|
|
#define DECL_CONSTANT(NAME, VALUE) \
|
|
_DECL_CONSTANT(NAME, VALUE)
|
|
|
|
// Send an output message (and declare a static message type for it)
|
|
#define output(FMT, args...) \
|
|
_sendf(_DECL_OUTPUT(FMT) , ##args )
|
|
|
|
// Declare a message type and transmit it.
|
|
#define sendf(FMT, args...) \
|
|
_sendf(_DECL_ENCODER(FMT) , ##args )
|
|
|
|
// Shut down the machine (also declares a static string to transmit)
|
|
#define shutdown(msg) \
|
|
sched_shutdown(_DECL_STATIC_STR(msg))
|
|
#define try_shutdown(msg) \
|
|
sched_try_shutdown(_DECL_STATIC_STR(msg))
|
|
|
|
// command.c
|
|
struct command_encoder;
|
|
void _sendf(const struct command_encoder *ce, ...);
|
|
|
|
// out/compile_time_request.c (auto generated file)
|
|
struct command_encoder {
|
|
uint8_t msg_id, max_size, num_params;
|
|
const uint8_t *param_types;
|
|
};
|
|
struct command_parser {
|
|
uint8_t msg_id, num_args, flags, num_params;
|
|
const uint8_t *param_types;
|
|
void (*func)(uint32_t *args);
|
|
};
|
|
enum {
|
|
PT_uint32, PT_int32, PT_uint16, PT_int16, PT_byte,
|
|
PT_string, PT_progmem_buffer, PT_buffer,
|
|
};
|
|
extern const struct command_parser * const command_index[];
|
|
extern const uint8_t command_index_size;
|
|
extern const uint8_t command_identify_data[];
|
|
extern const uint32_t command_identify_size;
|
|
const struct command_encoder *ctr_lookup_encoder(const char *str);
|
|
const struct command_encoder *ctr_lookup_output(const char *str);
|
|
uint8_t ctr_lookup_static_string(const char *str);
|
|
|
|
#define _DECL_COMMAND(FUNC, FLAGS, MSG) \
|
|
DECL_CTR("_DECL_COMMAND " __stringify(FUNC) " " __stringify(FLAGS) " " MSG)
|
|
|
|
#define _DECL_CONSTANT(NAME, VALUE) \
|
|
DECL_CTR("_DECL_CONSTANT " __stringify(NAME) " " __stringify(VALUE))
|
|
|
|
#define _DECL_ENCODER(FMT) ({ \
|
|
DECL_CTR("_DECL_ENCODER " FMT); \
|
|
ctr_lookup_encoder(FMT); })
|
|
|
|
#define _DECL_OUTPUT(FMT) ({ \
|
|
DECL_CTR("_DECL_OUTPUT " FMT); \
|
|
ctr_lookup_output(FMT); })
|
|
|
|
#define _DECL_STATIC_STR(MSG) ({ \
|
|
DECL_CTR("_DECL_STATIC_STR " MSG); \
|
|
ctr_lookup_static_string(MSG); })
|
|
|
|
#endif // command.h
|