fome-fw/firmware/controllers/core/fsio_core.h

/**
 * @file fsio_core.h
 *
 * @date Oct 3, 2014
 * @author Andrey Belomutskiy, (c) 2012-2020
 */

#pragma once

#include "engine.h"
#include "fl_stack.h"

#define MAX_TABLE_INDEX 4

typedef enum {
	LE_UNDEFINED = 0,
	LE_METHOD_RETURN = 130,

	LE_NUMERIC_VALUE = 1,
	LE_BOOLEAN_VALUE = 126,
	LE_OPERATOR_LESS = 2,
	LE_OPERATOR_MORE = 3,
	LE_OPERATOR_LESS_OR_EQUAL = 4,
	LE_OPERATOR_MORE_OR_EQUAL = 5,
	LE_OPERATOR_AND = 6,
	LE_OPERATOR_OR = 7,
	LE_OPERATOR_NOT = 8,
	LE_OPERATOR_ADDITION = 9,
	LE_OPERATOR_SUBTRACTION = 10,
	LE_OPERATOR_MULTIPLICATION = 11,
	LE_OPERATOR_DIVISION = 12,
	LE_METHOD_MAX = 13,
	LE_METHOD_MIN = 14,
	LE_METHOD_IF = 15,

	LE_METHOD_RPM = 100,
	LE_METHOD_COOLANT = 101,
	LE_METHOD_FAN = 102,
	LE_METHOD_TIME_SINCE_BOOT = 103,
	LE_METHOD_TPS = 106,
	LE_METHOD_MAF = 107,
	LE_METHOD_INTAKE_AIR = 108,
	LE_METHOD_VBATT = 109,
	LE_METHOD_AC_TOGGLE = 110,
	LE_METHOD_TIME_SINCE_AC_TOGGLE = 111,
	LE_METHOD_KNOCK = 112,
	LE_METHOD_FSIO_TABLE = 113,
	LE_METHOD_SELF = 114,
	LE_METHOD_MAP = 115,
	LE_METHOD_FSIO_ANALOG_INPUT = 116,
	LE_METHOD_INTAKE_VVT = 117,
	LE_METHOD_EXHAUST_VVT = 118,
	LE_METHOD_IS_COOLANT_BROKEN = 119,
	LE_METHOD_CRANKING_RPM = 120,
	LE_METHOD_STARTUP_FUEL_PUMP_DURATION = 121,
	LE_METHOD_IN_SHUTDOWN = 122,
	LE_METHOD_FSIO_DIGITAL_INPUT = 123,
	LE_METHOD_FSIO_SETTING = 124,
	LE_METHOD_PPS = 125,
	LE_METHOD_TIME_SINCE_TRIGGER_EVENT = 127,
	LE_METHOD_IN_MR_BENCH = 128,
	LE_METHOD_FUEL_FLOW_RATE = 131,
	LE_METHOD_OIL_PRESSURE = 132,

#include "fsio_enums_generated.def"

	Force_4b_le_action = ENUM_32_BITS,

} le_action_e;

// This type borrows the least significant bit of a float and uses it to indicate
// whether it's actually a boolean hiding inside that float
class FsioValue
{
public:
	/*implicit*/ FsioValue(float f);
	/*implicit*/ FsioValue(bool b);

	bool isFloat() const;
	float asFloat() const;

	bool isBool() const;
	bool asBool() const;

private:
	// These must match for this trick to work!
	static_assert(sizeof(float) == sizeof(uint32_t));

	union
	{
		uint32_t u32;
		float f32;
	} u;
};

using FsioResult = expected<float>;

class LEElement {
public:
	LEElement();
	void clear();

	void init(le_action_e action);
	void init(le_action_e action, float value);
	void init(le_action_e action, bool value);

	le_action_e action;
	float fValue;
};

class LEElementPool {
public:
	LEElementPool(LEElement *pool, int size);

	void reset();
	LEElement * parseExpression(const char * line);
	int getSize() const;
private:
	LEElement* m_pool;
	LEElement* m_nextFree;

	int size;
};


#define MAX_STACK_DEPTH 32

typedef FLStack<float, MAX_STACK_DEPTH> calc_stack_t;

#define MAX_CALC_LOG 64

class LECalculator {
public:
	LECalculator();
	float evaluate(float selfValue, const LEElement* element DECLARE_ENGINE_PARAMETER_SUFFIX);
	void reset();

	// Log history of calculation actions for debugging
	le_action_e calcLogAction[MAX_CALC_LOG];
	float calcLogValue[MAX_CALC_LOG];
	int currentCalculationLogPosition;

private:
	void push(le_action_e action, float value);
	FsioResult processElement(const LEElement* element DECLARE_ENGINE_PARAMETER_SUFFIX);
	float pop(le_action_e action);

	calc_stack_t stack;
};

class LENameOrdinalPair {
public:
	LENameOrdinalPair(le_action_e action, const char *name);
	LENameOrdinalPair *next;
	le_action_e action;
	const char *name;
};

/**
 * This method extract the first token on the line into the specified buffer
 *
 * @return pointer after the token
 */
const char *getNextToken(const char *line, char *buffer, const int bufferSize);
bool isNumeric(const char* line);
le_action_e parseAction(const char * line);
bool float2bool(float v);