mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-11 21:52:28 +00:00
202 lines
8.2 KiB
C
Executable file
202 lines
8.2 KiB
C
Executable file
|
|
/******************************************************************************
|
|
* \attention
|
|
*
|
|
* <h2><center>© 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.
|
|
* You may obtain a copy of the License at:
|
|
*
|
|
* www.st.com/myliberty
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* 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
|
|
* limitations under the License.
|
|
*
|
|
******************************************************************************/
|
|
|
|
/*
|
|
* PROJECT: ST25R391x firmware
|
|
* Revision:
|
|
* LANGUAGE: ISO C99
|
|
*/
|
|
|
|
/*! \file rfal_iso15693_2.h
|
|
*
|
|
* \author Ulrich Herrmann
|
|
*
|
|
* \brief Implementation of ISO-15693-2
|
|
*
|
|
*/
|
|
/*!
|
|
*
|
|
*/
|
|
|
|
#ifndef RFAL_ISO_15693_2_H
|
|
#define RFAL_ISO_15693_2_H
|
|
|
|
/*
|
|
******************************************************************************
|
|
* INCLUDES
|
|
******************************************************************************
|
|
*/
|
|
#include "platform.h"
|
|
#include "st_errno.h"
|
|
|
|
/*
|
|
******************************************************************************
|
|
* GLOBAL DATATYPES
|
|
******************************************************************************
|
|
*/
|
|
/*! Enum holding possible VCD codings */
|
|
typedef enum
|
|
{
|
|
ISO15693_VCD_CODING_1_4,
|
|
ISO15693_VCD_CODING_1_256
|
|
}iso15693VcdCoding_t;
|
|
|
|
/*! Enum holding possible VICC datarates */
|
|
|
|
/*! Configuration parameter used by #iso15693PhyConfigure */
|
|
typedef struct
|
|
{
|
|
iso15693VcdCoding_t coding; /*!< desired VCD coding */
|
|
uint32_t speedMode; /*!< 0: normal mode, 1: 2^1 = x2 Fast mode, 2 : 2^2 = x4 mode, 3 : 2^3 = x8 mode - all rx pulse numbers and times are divided by 1,2,4,8 */
|
|
}iso15693PhyConfig_t;
|
|
|
|
/*! Parameters how the stream mode should work */
|
|
struct iso15693StreamConfig {
|
|
uint8_t useBPSK; /*!< 0: subcarrier, 1:BPSK */
|
|
uint8_t din; /*!< the divider for the in subcarrier frequency: fc/2^din */
|
|
uint8_t dout; /*!< the divider for the in subcarrier frequency fc/2^dout */
|
|
uint8_t report_period_length; /*!< the length of the reporting period 2^report_period_length*/
|
|
};
|
|
/*
|
|
******************************************************************************
|
|
* GLOBAL CONSTANTS
|
|
******************************************************************************
|
|
*/
|
|
|
|
#define ISO15693_REQ_FLAG_TWO_SUBCARRIERS 0x01U /*!< Flag indication that communication uses two subcarriers */
|
|
#define ISO15693_REQ_FLAG_HIGH_DATARATE 0x02U /*!< Flag indication that communication uses high bitrate */
|
|
#define ISO15693_MASK_FDT_LISTEN (65) /*!< t1min = 308,2us = 4192/fc = 65.5 * 64/fc */
|
|
|
|
/*! t1max = 323,3us = 4384/fc = 68.5 * 64/fc
|
|
* 12 = 768/fc unmodulated time of single subcarrior SoF */
|
|
#define ISO15693_FWT (69 + 12)
|
|
|
|
|
|
|
|
|
|
/*
|
|
******************************************************************************
|
|
* GLOBAL FUNCTION PROTOTYPES
|
|
******************************************************************************
|
|
*/
|
|
/*!
|
|
*****************************************************************************
|
|
* \brief Initialize the ISO15693 phy
|
|
*
|
|
* \param[in] config : ISO15693 phy related configuration (See #iso15693PhyConfig_t)
|
|
* \param[out] needed_stream_config : return a pointer to the stream config
|
|
* needed for this iso15693 config. To be used for configure RF chip.
|
|
*
|
|
* \return ERR_IO : Error during communication.
|
|
* \return ERR_NONE : No error.
|
|
*
|
|
*****************************************************************************
|
|
*/
|
|
extern ReturnCode iso15693PhyConfigure(const iso15693PhyConfig_t* config,
|
|
const struct iso15693StreamConfig ** needed_stream_config );
|
|
|
|
/*!
|
|
*****************************************************************************
|
|
* \brief Return current phy configuration
|
|
*
|
|
* This function returns current Phy configuration previously
|
|
* set by #iso15693PhyConfigure
|
|
*
|
|
* \param[out] config : ISO15693 phy configuration.
|
|
*
|
|
* \return ERR_NONE : No error.
|
|
*
|
|
*****************************************************************************
|
|
*/
|
|
extern ReturnCode iso15693PhyGetConfiguration(iso15693PhyConfig_t* config);
|
|
|
|
/*!
|
|
*****************************************************************************
|
|
* \brief Code an ISO15693 compatible frame
|
|
*
|
|
* This function takes \a length bytes from \a buffer, perform proper
|
|
* encoding and sends out the frame to the ST25R391x.
|
|
*
|
|
* \param[in] buffer : data to send, modified to adapt flags.
|
|
* \param[in] length : number of bytes to send.
|
|
* \param[in] sendCrc : If set to true, CRC is appended to the frame
|
|
* \param[in] sendFlags: If set to true, flag field is sent according to
|
|
* ISO15693.
|
|
* \param[in] picopassMode : If set to true, the coding will be according to Picopass
|
|
* \param[out] subbit_total_length : Return the complete bytes which need to
|
|
* be send for the current coding
|
|
* \param[in,out] offset : Set to 0 for first transfer, function will update it to
|
|
point to next byte to be coded
|
|
* \param[out] outbuf : buffer where the function will store the coded subbit stream
|
|
* \param[out] outBufSize : the size of the output buffer
|
|
* \param[out] actOutBufSize : the amount of data stored into the buffer at this call
|
|
*
|
|
* \return ERR_IO : Error during communication.
|
|
* \return ERR_AGAIN : Data was not coded all the way. Call function again with a new/emptied buffer
|
|
* \return ERR_NO_MEM : In case outBuf is not big enough. Needs to have at
|
|
least 5 bytes for 1of4 coding and 65 bytes for 1of256 coding
|
|
* \return ERR_NONE : No error.
|
|
*
|
|
*****************************************************************************
|
|
*/
|
|
extern ReturnCode iso15693VCDCode(uint8_t* buffer, uint16_t length, bool sendCrc, bool sendFlags, bool picopassMode,
|
|
uint16_t *subbit_total_length, uint16_t *offset,
|
|
uint8_t* outbuf, uint16_t outBufSize, uint16_t* actOutBufSize);
|
|
|
|
|
|
/*!
|
|
*****************************************************************************
|
|
* \brief Receive an ISO15693 compatible frame
|
|
*
|
|
* This function receives an ISO15693 frame from the ST25R391x, decodes the frame
|
|
* and writes the raw data to \a buffer.
|
|
* \note Buffer needs to be big enough to hold CRC also (+2 bytes)
|
|
*
|
|
* \param[in] inBuf : buffer with the hamming coded stream to be decoded
|
|
* \param[in] inBufLen : number of bytes to decode (=length of buffer).
|
|
* \param[out] outBuf : buffer where received data shall be written to.
|
|
* \param[in] outBufLen : Length of output buffer, should be approx twice the size of inBuf
|
|
* \param[out] outBufPos : The number of decoded bytes. Could be used in
|
|
* extended implementation to allow multiple calls
|
|
* \param[out] bitsBeforeCol : in case of ERR_COLLISION this value holds the
|
|
* number of bits in the current byte where the collision happened.
|
|
* \param[in] ignoreBits : number of bits in the beginning where collisions will be ignored
|
|
* \param[in] picopassMode : if set to true, the decoding will be according to Picopass
|
|
*
|
|
* \return ERR_COLLISION : collision occured, data uncorrect
|
|
* \return ERR_CRC : CRC error, data uncorrect
|
|
* \return ERR_TIMEOUT : timeout waiting for data.
|
|
* \return ERR_NONE : No error.
|
|
*
|
|
*****************************************************************************
|
|
*/
|
|
extern ReturnCode iso15693VICCDecode(const uint8_t *inBuf,
|
|
uint16_t inBufLen,
|
|
uint8_t* outBuf,
|
|
uint16_t outBufLen,
|
|
uint16_t* outBufPos,
|
|
uint16_t* bitsBeforeCol,
|
|
uint16_t ignoreBits,
|
|
bool picopassMode );
|
|
|
|
#endif /* RFAL_ISO_15693_2_H */
|
|
|