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Diffstat (limited to 'mnsl/mns_encoder.h')
| -rw-r--r-- | mnsl/mns_encoder.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/mnsl/mns_encoder.h b/mnsl/mns_encoder.h new file mode 100644 index 0000000..439a622 --- /dev/null +++ b/mnsl/mns_encoder.h @@ -0,0 +1,118 @@ +/* + * MOST NetServices "Light" V3.2.7.0.1796 MultiInstance Patch + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +/*! + * \file + * \brief Declaration of message encoder + * + * \cond MNS_INTERNAL_DOC + * \addtogroup G_ENCODER + * @{ + */ + +#ifndef MNS_ENCODER_H +#define MNS_ENCODER_H + +/*------------------------------------------------------------------------------------------------*/ +/* Includes */ +/*------------------------------------------------------------------------------------------------*/ +#include "mns_message.h" + +#ifdef __cplusplus +extern "C" +{ +#endif + +/*------------------------------------------------------------------------------------------------*/ +/* Defines */ +/*------------------------------------------------------------------------------------------------*/ +#define ENC_MAX_SIZE_CONTENT 16U /*!< \brief Maximum content size in bytes, quadlet aligned */ + +/*------------------------------------------------------------------------------------------------*/ +/* Types */ +/*------------------------------------------------------------------------------------------------*/ +/*! \brief Retrieves the size of a MOST message header + * \return The size of the MOST message header in bytes. + */ +typedef uint8_t (*Enc_GetSize_t)(void); + +/*! \brief Retrieves the content type of a MOST message header + * \return The content type of the MOST message header in bytes. + */ +typedef uint8_t (*Enc_GetContType_t)(void); + +/*! \brief Encodes a message telegram to the MOST message header + * \param tel_ptr Reference to the Msg_MostTel_t structure + * \param header The header buffer + */ +typedef void (*Enc_Encode_t)(Msg_MostTel_t *tel_ptr, uint8_t header[]); + +/*! \brief Decodes a MOST message header to a message telegram structure + * \param tel_ptr Reference to the Msg_MostTel_t structure + * \param header The header buffer + */ +typedef void (*Enc_Decode_t)(Msg_MostTel_t *tel_ptr, uint8_t header[]); + +/*------------------------------------------------------------------------------------------------*/ +/* Structures */ +/*------------------------------------------------------------------------------------------------*/ +/*! \brief Identifier for a MOST Message Content */ +typedef enum Enc_MsgContent_ +{ + ENC_CONTENT_00 = 0x00, /*!< \brief Content Type "0x00": Uncompressed, excluding retry values */ + ENC_CONTENT_80 = 0x80, /*!< \brief Content Type "0x80": Compressed, excluding retry values */ + ENC_CONTENT_81 = 0x81 /*!< \brief Content Type "0x81": Compressed, including retry values */ + +} Enc_MsgContent_t; + +/*! \brief Interface for message encoder */ +typedef struct IEncoder_ +{ + Enc_MsgContent_t content_type; /*!< \brief Retrieves the content type of the MOST message header */ + uint8_t pm_hdr_sz; /*!< \brief Retrieves the size of the Port Message header */ + uint8_t msg_hdr_sz; /*!< \brief Retrieves the size of the MOST message header */ + Enc_Encode_t encode_fptr; /*!< \brief Function required to encode a MOST message header */ + Enc_Decode_t decode_fptr; /*!< \brief Function required to decode a MOST message header */ + +} IEncoder; + +/*------------------------------------------------------------------------------------------------*/ +/* Function prototypes */ +/*------------------------------------------------------------------------------------------------*/ +extern IEncoder *Enc_GetEncoder(Enc_MsgContent_t type); + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* #ifndef MNS_ENCODER_H */ + +/*! + * @} + * \endcond + */ + +/*------------------------------------------------------------------------------------------------*/ +/* End of file */ +/*------------------------------------------------------------------------------------------------*/ + |