Momentum-Apps/esubghz_chat/lib/nfclegacy/ST25RFAL002/include/rfal_dpo.h

/******************************************************************************
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  *
  * <h2><center>&copy; COPYRIGHT 2020 STMicroelectronics</center></h2>
  *
  * Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License");
  * You may not use this file except in compliance with the License.
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  *
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  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
  * AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  * See the License for the specific language governing permissions and
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******************************************************************************/

/*
 *      PROJECT:   ST25R391x firmware
 *      $Revision: $
 *      LANGUAGE:  ISO C99
 */

/*! \file rfal_dpo.h
 *
 *  \author Martin Zechleitner
 *
 *  \brief Dynamic Power adjustment
 *  
 *  This module provides an interface to perform the power adjustment dynamically 
 *  
 *  
 * \addtogroup RFAL
 * @{
 *
 * \addtogroup RFAL-HAL
 * \brief RFAL Hardware Abstraction Layer
 * @{
 *
 * \addtogroup DPO
 * \brief RFAL Dynamic Power Module
 * @{
 * 
 */

#ifndef RFAL_DPO_H
#define RFAL_DPO_H

/*
 ******************************************************************************
 * INCLUDES
 ******************************************************************************
 */
#include "../platform.h"
#include "../st_errno.h"

/*
 ******************************************************************************
 * GLOBAL DEFINES
 ******************************************************************************
 */

#define RFAL_DPO_TABLE_SIZE_MAX 15U /*!< Max DPO table size */
#define RFAL_DPO_TABLE_PARAMETER 3U /*!< DPO table Parameter length */

/*
******************************************************************************
* GLOBAL TYPES
******************************************************************************
*/

/*! DPO table entry struct */
typedef struct {
    uint8_t rfoRes; /*!< Setting for the resistance level of the RFO */
    uint8_t inc; /*!< Threshold for incrementing the output power */
    uint8_t dec; /*!< Threshold for decrementing the output power */
} rfalDpoEntry;

/*! Function pointer to method doing the reference measurement */
typedef ReturnCode (*rfalDpoMeasureFunc)(uint8_t*);

/*
******************************************************************************
* GLOBAL FUNCTION PROTOTYPES
******************************************************************************
*/

/*! 
 *****************************************************************************
 * \brief  Initialize dynamic power table
 *  
 *  This function sets the internal dynamic power table to the default 
 *  values stored in rfal_DpoTbl.h
 *  
 *****************************************************************************
 */
void rfalDpoInitialize(void);

/*! 
 *****************************************************************************
 * \brief  Set the measurement method
 *  
 * This function sets the measurement method used for reference measurement.
 * Based on the measurement the power will then be adjusted
 *  
 * \param[in]  dpoMeasureFunc: callback of measurement function
 *
 *****************************************************************************
 */
void rfalDpoSetMeasureCallback(rfalDpoMeasureFunc dpoMeasureFunc);

/*! 
 *****************************************************************************
 * \brief  Write dynamic power table
 *  
 * Load the dynamic power table  
 *
 * \param[in]  powerTbl:     location of power Table to be loaded
 * \param[in]  powerTblEntries: number of entries of the power Table to be loaded
 * 
 * \return ERR_NONE    : No error
 * \return ERR_PARAM   : if configTbl is invalid
 * \return ERR_NOMEM   : if the given Table is bigger exceeds the max size
 *****************************************************************************
 */
ReturnCode rfalDpoTableWrite(rfalDpoEntry* powerTbl, uint8_t powerTblEntries);

/*! 
 *****************************************************************************
 * \brief  Dynamic power table Read
 *  
 * Read the dynamic power table  
 *
 * \param[out]   tblBuf: location to the rfalDpoEntry[] to place the Table 
 * \param[in]    tblBufEntries: number of entries available in tblBuf to place the power Table
 * \param[out]   tableEntries: returned number of entries actually written into tblBuf
 * 
 * \return ERR_NONE    : No error
 * \return ERR_PARAM   : if configTbl is invalid or parameters are invalid
 *****************************************************************************
 */
ReturnCode rfalDpoTableRead(rfalDpoEntry* tblBuf, uint8_t tblBufEntries, uint8_t* tableEntries);

/*! 
 *****************************************************************************
 * \brief  Dynamic power adjust
 *  
 * It measures the current output and adjusts the power accordingly to 
 * the dynamic power table  
 * 
 * \return ERR_NONE        : No error
 * \return ERR_PARAM       : if configTbl is invalid or parameters are invalid
 * \return ERR_WRONG_STATE : if the current state is valid for DPO Adjustment
 *****************************************************************************
 */
ReturnCode rfalDpoAdjust(void);

/*! 
 *****************************************************************************
 * \brief  Get Current Dynamic power table entry
 *  
 * Return current used DPO power table entry settings
 *
 * \return ERR_NONE    : Current DpoEntry. This includes d_res, inc and dec
 * 
 *****************************************************************************
 */
rfalDpoEntry* rfalDpoGetCurrentTableEntry(void);

/*! 
 *****************************************************************************
 * \brief  Dynamic power set enabled state
 *  
 * \param[in]     enable: new active state
 *
 * Set state to enable or disable the Dynamic power adjustment 
 * 
 *****************************************************************************
 */
void rfalDpoSetEnabled(bool enable);

/*! 
 *****************************************************************************
 * \brief  Get the Dynamic power enabled state
 *  
 * Get state of the Dynamic power adjustment 
 * 
 * \return true   : enabled
 * \return false  : disabled
 *****************************************************************************
 */
bool rfalDpoIsEnabled(void);

#endif /* RFAL_DPO_H */

/**
  * @}
  *
  * @}
  *
  * @}
  */