You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
3.3 KiB
125 lines
3.3 KiB
//
|
|
// Created by MightyPork on 2017/11/24.
|
|
//
|
|
|
|
#ifndef GEX_UNIT_H
|
|
#define GEX_UNIT_H
|
|
|
|
#include "platform.h"
|
|
#include <TinyFrame.h>
|
|
#include "utils/ini_writer.h"
|
|
#include "utils/payload_builder.h"
|
|
#include "utils/payload_parser.h"
|
|
|
|
#define CHECK_TYPE(_unit, _driver) do { \
|
|
if ((_unit->driver) != (_driver)) \
|
|
return E_BAD_UNIT_TYPE; \
|
|
} while (0)
|
|
|
|
extern char unit_tmp512[512]; // temporary static buffer - not expected to be accessed asynchronously
|
|
// TODO add mutex?
|
|
|
|
typedef struct unit Unit;
|
|
typedef struct unit_driver UnitDriver;
|
|
|
|
struct unit {
|
|
const UnitDriver *driver;
|
|
|
|
/** Unit name (used in error messages) */
|
|
const char *name;
|
|
|
|
/**
|
|
* Storage for arbitrary unit data (allocated in 'preInit' and freed in 'deInit' or when init/load fails)
|
|
*/
|
|
void *data;
|
|
|
|
/** Unit init status */
|
|
error_t status;
|
|
|
|
/** Unit call sign for messages */
|
|
uint8_t callsign;
|
|
};
|
|
|
|
/**
|
|
* Unit instance - statically or dynamically allocated (depends whether it's system or user unit)
|
|
*/
|
|
struct unit_driver {
|
|
/** Driver ID */
|
|
const char *name;
|
|
|
|
/** Unit type description (for use in comments) */
|
|
const char *description;
|
|
|
|
/**
|
|
* Pre-init: allocate data object, init defaults
|
|
*/
|
|
error_t (*preInit)(Unit *unit);
|
|
|
|
/**
|
|
* Load settings from binary storage, parse and store them in the data object.
|
|
* Don't do any validation, that's left for the init() function
|
|
*
|
|
* @param pp - parser
|
|
*/
|
|
void (*cfgLoadBinary)(Unit *unit, PayloadParser *pp);
|
|
|
|
/**
|
|
* Write settings to binary storage.
|
|
*
|
|
* @param pb - builder
|
|
*/
|
|
void (*cfgWriteBinary)(Unit *unit, PayloadBuilder *pb);
|
|
|
|
/**
|
|
* Load settings from a INI file.
|
|
* Name has already been parsed and assigned.
|
|
* This function is called repeatedly as kv-pairs are encountered in the stream.
|
|
*
|
|
* @param key - key from the INI file
|
|
* @param value - value from the ini file; strings have already removed quotes and replaced escape sequences with ASCII as needed
|
|
*/
|
|
error_t (*cfgLoadIni)(Unit *unit, const char *key, const char *value);
|
|
|
|
/**
|
|
* Export settings to a INI file.
|
|
*
|
|
* @param buffer - destination buffer
|
|
* @param capacity - buffer size
|
|
* @return nubmer of bytes used
|
|
*/
|
|
void (*cfgWriteIni)(Unit *unit, IniWriter *iw);
|
|
|
|
/**
|
|
* Finalize the init sequence, validate settings, enable peripherals and prepare for operation
|
|
*/
|
|
error_t (*init)(Unit *unit);
|
|
|
|
/**
|
|
* De-initialize the unit: de-init peripheral, free resources, free data object...
|
|
* This is called when disabling all units in order to reload new config.
|
|
*/
|
|
void (*deInit)(Unit *unit);
|
|
|
|
/**
|
|
* Handle an incoming request. Return true if command was OK.
|
|
*/
|
|
error_t (*handleRequest)(Unit *unit, TF_ID frame_id, uint8_t command, PayloadParser *pp);
|
|
};
|
|
|
|
/**
|
|
* De-init a partially initialized unit (before 'init' succeeds)
|
|
* This releases all held resources and frees the *data,
|
|
* if it looks like it has been dynamically allocated.
|
|
*
|
|
* Does NOT free the unit struct itself
|
|
*
|
|
* @param unit - unit to discard
|
|
*/
|
|
void clean_failed_unit(Unit *unit);
|
|
|
|
/** Marks peripherals claimed by the system */
|
|
extern Unit UNIT_SYSTEM;
|
|
/** Marks peripherals not available on the platform */
|
|
extern Unit UNIT_PLATFORM;
|
|
|
|
#endif //GEX_UNIT_H
|
|
|