/*!
 * @file        tsc_touchkey.h
 *
 * @brief       This file contains external declarations of the tsc_touchkey.c file.
 *
 * @version     V1.0.1
 *
 * @date        2022-09-20
 *
 * @attention
 *
 *  Copyright (C) 2020-2022 Geehy Semiconductor
 *
 *  You may not use this file except in compliance with the
 *  GEEHY COPYRIGHT NOTICE (GEEHY SOFTWARE PACKAGE LICENSE).
 *
 *  The program is only for reference, which is distributed in the hope
 *  that it will be useful and instructional for customers to develop
 *  their software. Unless required by applicable law or agreed to in
 *  writing, the program is distributed on an "AS IS" BASIS, WITHOUT
 *  ANY WARRANTY OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the GEEHY SOFTWARE PACKAGE LICENSE for the governing permissions
 *  and limitations under the License.
 */

/* Define to prevent recursive inclusion */
#ifndef __TOUCH_TOUCHKEY_H
#define __TOUCH_TOUCHKEY_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes */
#include "tsc_acq.h"
#include "tsc_time.h"

/** @addtogroup TSC_Driver_Library TSC Driver Library
  @{
*/

/** @addtogroup TSC_TouchKey_Driver TSC TouchKey Driver
  @{
*/

/** @defgroup TSC_TouchKey_Macros Macros
  @{
*/

/**@} end of group TSC_TouchKey_Macros */

/** @defgroup TSC_TouchKey_Enumerations Enumerations
  @{
*/

/**@} end of group TSC_TouchKey_Enumerations */

/** @defgroup TSC_TouchKey_Structures Structures
  @{
*/

/**
 * @brief   Contains all data related to TouchKey sensor.
 *          Variables of this structure type must be placed in RAM only.
 */
typedef struct
{
    TSC_STATEID_T      StateId;           /*!< Current state identifier */
    TSC_tCounter_T     CounterDebounce;   /*!< Counter for debounce and calibration management */
    unsigned int       CounterDTO : 6;    /*!< Counter for DTO management (TSC_tCounter_T) */
    unsigned int       Change     : 1;    /*!< The State is different from the previous one (TSC_STATE_T) */
    unsigned int       DxsLock    : 1;    /*!< The State is locked by the DxS (TSC_BOOL_T) */
} TSC_TouchKeyData_T;

/**
 * @brief   Contains all data related to TouchKey sensor.
 *          Variables of this structure type can be placed in RAM or ROM.
 */
typedef struct
{
#if TOUCH_USE_PROX > 0
    TSC_tThreshold_T  ProxInTh;           /*!< Proximity in threshold */
    TSC_tThreshold_T  ProxOutTh;          /*!< Proximity out threshold */
#endif
    TSC_tThreshold_T  DetectInTh;         /*!< Detection in threshold */
    TSC_tThreshold_T  DetectOutTh;        /*!< Detection out threshold */
    TSC_tThreshold_T  CalibTh;            /*!< Calibration threshold */
    TSC_tCounter_T    CounterDebCalib;    /*!< Debounce counter to enter in Calibration state */
#if TOUCH_USE_PROX > 0
    TSC_tCounter_T    CounterDebProx;     /*!< Debounce counter to enter in Proximity state */
#endif
    TSC_tCounter_T    CounterDebDetect;   /*!< Debounce counter to enter in Detect state */
    TSC_tCounter_T    CounterDebRelease;  /*!< Debounce counter to enter in Release state */
    TSC_tCounter_T    CounterDebError;    /*!< Debounce counter to enter in Error state */
} TSC_TouchKeyParam_T;

/**
 * @brief   Contains definition of a TouchKey sensor.
 *          Variables of this structure type can be placed in RAM or ROM.
 */
typedef struct
{
    TSC_TouchKeyData_T*          p_Data;    /*!< Data (state id, counter, flag, ...) */
    TSC_TouchKeyParam_T*         p_Param;   /*!< Parameters (thresholds, debounce, ...) */
    TSC_Channel_Data_T*          p_ChD;     /*!< Channel Data (Meas, Refer, Delta, ...) */
    CONST TSC_State_T*           p_SM;      /*!< State Machine */
    CONST TSC_TouchKeyMethods_T* p_Methods; /*!< Methods */
} TSC_TouchKey_T;

/**
 * @brief   Contains definition of a Basic TouchKey sensor.
 *          Variables of this structure type can be placed in RAM or ROM.
 *          Basic sensor does not contain its own state machine and methods. It used
 *          default ones instead to gain memory space.
 */
typedef struct
{
    TSC_TouchKeyData_T*          p_Data;    /*!< Data (state id, counters, flag, ...) */
    TSC_TouchKeyParam_T*         p_Param;   /*!< Parameters (thresholds, debounce, ...) */
    TSC_Channel_Data_T*          p_ChD;     /*!< Channel Data (Meas, Refer, Delta, ...) */
} TSC_TouchKeyB_T;

/**@} end of group TSC_TouchKey_Structures */

/** @defgroup TSC_TouchKey_Functions Functions
  @{
*/

/* "Object methods" functions */
void TSC_TouchKey_Config(void);
void TSC_TouchKey_Process(void);

/* Utility functions */
void TSC_TouchKey_ConfigCalibrationState(TSC_tCounter_T delay);
void TSC_TouchKey_ConfigOffState(void);
void TSC_TouchKey_ConfigBurstOnlyState(void);
TSC_STATEID_T TSC_TouchKey_ReadStateId(void);
TSC_STATEMASK_T TSC_TouchKey_ReadStateMask(void);
TSC_tNum_T TSC_TouchKey_ReadChangeFlag(void);

/* State machine functions */
void TSC_TouchKey_ProcessCalibrationState(void);
void TSC_TouchKey_ProcessDebCalibrationState(void);
void TSC_TouchKey_ProcessReleaseState(void);
void TSC_TouchKey_ProcessDebReleaseProxState(void);
void TSC_TouchKey_ProcessDebReleaseDetectState(void);
void TSC_TouchKey_ProcessDebReleaseTouchState(void);
void TSC_TouchKey_ProcessProxState(void);
void TSC_TouchKey_ProcessDebProxState(void);
void TSC_TouchKey_ProcessDebProxDetectState(void);
void TSC_TouchKey_ProcessDebProxTouchState(void);
void TSC_TouchKey_ProcessDetectState(void);
void TSC_TouchKey_ProcessDebDetectState(void);
void TSC_TouchKey_ProcessTouchState(void);
void TSC_TouchKey_ProcessDebErrorState(void);

#ifdef __cplusplus
}
#endif

#endif /* __TSC_TOUCHKEY_H */

/**@} end of group TSC_TouchKey_Functions */
/**@} end of group TSC_TouchKey_Driver */
/**@} end of group TSC_Driver_Library */