diff options
Diffstat (limited to 'mnsl/mns_segmentation.h')
| -rw-r--r-- | mnsl/mns_segmentation.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/mnsl/mns_segmentation.h b/mnsl/mns_segmentation.h new file mode 100644 index 0000000..1295be3 --- /dev/null +++ b/mnsl/mns_segmentation.h @@ -0,0 +1,146 @@ +/* + * 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 Internal header file of AMS Segmentation Class + * + * \cond MNS_INTERNAL_DOC + * \addtogroup G_AMSSEGM + * @{ + */ + +#ifndef MNS_SEGMENTATION_H +#define MNS_SEGMENTATION_H + +/*------------------------------------------------------------------------------------------------*/ +/* Includes */ +/*------------------------------------------------------------------------------------------------*/ +#include "mns_message.h" +#include "mns_amsmessage.h" +#include "mns_amspool.h" +#include "mns_base.h" + +#ifdef __cplusplus +extern "C" +{ +#endif + +/*------------------------------------------------------------------------------------------------*/ +/* Macros */ +/*------------------------------------------------------------------------------------------------*/ +/*! \brief Defines the maximum payload size of a single transfer in bytes */ +#define SEGM_MAX_SIZE_TEL 45U + +/*------------------------------------------------------------------------------------------------*/ +/* Types */ +/*------------------------------------------------------------------------------------------------*/ +/*! \brief Collection of possible segmentation errors */ +typedef enum Segm_Error_ +{ + SEGM_ERR_1 = 1, /*!< \brief The first segment is missing. */ + + SEGM_ERR_2 = 2, /*!< \brief The device is not able to receive a message of this size. + * MNS specific: The allocation of user provided payload failed. + */ + SEGM_ERR_3 = 3, /*!< \brief Unexpected segment number. */ + + SEGM_ERR_4 = 4, /*!< \brief Too many unfinished segmentation messages were pending. */ + + SEGM_ERR_5 = 5, /*!< \brief A timeout occurred while waiting for the next segment. */ + + SEGM_ERR_6 = 6, /*!< \brief The Device is not capable to handle segmented messages. + * MNS specific: The application did not assign the payload allocation + * function in Mns_Ams_InitData_t prior calling Mns_Init(). + */ + SEGM_ERR_7 = 7 /*!< \brief Segmented message has not been finished before the arrival of + * another message with the identical FBlockID, InstID, FktID, and + * OPType sent by the same node. + */ +} Segm_Error_t; + +/*! \brief Segmentation result */ +typedef enum Segm_Result_ +{ + SEGM_RES_OK, /*!< \brief Telegram was processed */ + SEGM_RES_RETRY /*!< \brief Telegram shall be processed again as soon as messages are freed to the Rx pool */ + +} Segm_Result_t; + +/*! \brief Callback function to notify that a segmentation error has occurred + * \param self The instance + * \param tel_ptr The affected telegram + * \param error The segmentation error code (1..7) + */ +typedef void (*Segm_OnError_t)(void *self, Msg_MostTel_t *tel_ptr, Segm_Error_t error); + +/*------------------------------------------------------------------------------------------------*/ +/* Class */ +/*------------------------------------------------------------------------------------------------*/ +/*! \brief AMS Segmentation Class + * \details Performs Tx and Rx Segmentation + */ +typedef struct CSegmentation_ +{ + CBase *base_ptr; /*!< \brief Reference to base services */ + CAmsMsgPool *pool_ptr; /*!< \brief Reference to object/payload pool */ + + Segm_OnError_t error_fptr; /*!< \brief Callback function to notify segmentation errors */ + void *error_inst; /*!< \brief Instance which is notified on segmentation errors */ + + CDlList processing_list; /*!< \brief Segmented and un-finished Rx messages */ + CTimer gc_timer; /*!< \brief Timer to trigger the garbage collector */ + uint16_t rx_default_payload_sz; /*!< \brief Payload size that shall be allocated if size-prefixes + * segmentation message is missing */ + +} CSegmentation; + +/*------------------------------------------------------------------------------------------------*/ +/* Initialization Methods */ +/*------------------------------------------------------------------------------------------------*/ +extern void Segm_Ctor(CSegmentation *self, CBase *base_ptr, CAmsMsgPool *pool_ptr, uint16_t rx_def_payload_sz); +extern void Segm_AssignRxErrorHandler(CSegmentation *self, Segm_OnError_t error_fptr, void *error_inst); +extern void Segm_Cleanup(CSegmentation *self); + +/*------------------------------------------------------------------------------------------------*/ +/* Public method prototypes */ +/*------------------------------------------------------------------------------------------------*/ +extern bool Segm_TxBuildSegment(CSegmentation *self, Mns_AmsTx_Msg_t *msg_ptr, Msg_MostTel_t *tel_ptr); +extern Mns_AmsRx_Msg_t* Segm_RxExecuteSegmentation(CSegmentation *self, Msg_MostTel_t *tel_ptr, Segm_Result_t *result_ptr); +extern void Segm_RxGcScanProcessingHandles(void *self); + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* MNS_SEGMENTATION_H */ + +/*! + * @} + * \endcond + */ + +/*------------------------------------------------------------------------------------------------*/ +/* End of file */ +/*------------------------------------------------------------------------------------------------*/ + |