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https://github.com/espressif/esp-idf.git
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449d2a6367
Contains two different component folders per each implementation (serial_master and serial_slave) with concrete ports. Added common public api for master and slave and common interface for master and slave implementation. Add support of cmake system (added cmake files). Added sdkconfig.defaults files for slave and master modbus examples. Updated make file and KConfig for freemodbus component Update according to review and fix doxygen warnings Fix Doxyfile to pass documentation build Update headers and change interface file names as per review comments Merge branch feature/freemodbus_move_rs485_mode_control Update after review: The stack modbus folder updated to support master and slave ports together and moved into freemodbus/modbus Stack and port files updated to remove duplicated simbols Make file, KConfig and CMakeLists.txt updated to compile master and slave stacks, common interface and concrete implementations of ports Stack callback functions execute callbacks using interface pointer from concrete port implementation User can instantiate any of concrete port using common API (only one concrete port at a time) and it does not require to select port by KConfig Port pins and mode configuration moved into example files from port files to allow user select pins and port mode (customer request) Changes tested using pymodbus, ModbusPoll and communication between two boards Updated DoxyFile according to public include path Fix maximum instance size for slave (merge from master of customer issue) Fix critical section issue TW#28622 (change spin lock based critical section to semaphore) Move serial port files into component port folder for master and slave accordingly Fix example issue showed in the log when IO slave is not configured correctly Fix conflicts while merging from origin/master Fix errors handling in modbus controller interface + some final corrections according to review Update maximum allowed number of slaves in the network segment Fix bug with incorrect coils read mask Closes https://github.com/espressif/esp-idf/issues/858
95 lines
4.5 KiB
C
95 lines
4.5 KiB
C
/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _MB_CONTROLLER_SLAVE_H
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#define _MB_CONTROLLER_SLAVE_H
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#include "driver/uart.h" // for uart defines
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#include "errno.h" // for errno
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#include "esp_log.h" // for log write
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#include "string.h" // for strerror()
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#include "esp_modbus_slave.h" // for public type defines
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#include "esp_modbus_callbacks.h" // for callback functions
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/* ----------------------- Defines ------------------------------------------*/
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#define MB_INST_MIN_SIZE (2) // The minimal size of Modbus registers area in bytes
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#define MB_INST_MAX_SIZE (65535 * 2) // The maximum size of Modbus area in bytes
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#define MB_CONTROLLER_NOTIFY_QUEUE_SIZE (CONFIG_MB_CONTROLLER_NOTIFY_QUEUE_SIZE) // Number of messages in parameter notification queue
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#define MB_CONTROLLER_NOTIFY_TIMEOUT (pdMS_TO_TICKS(CONFIG_MB_CONTROLLER_NOTIFY_TIMEOUT)) // notification timeout
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#define MB_SLAVE_TAG "MB_CONTROLLER_SLAVE"
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#define MB_SLAVE_CHECK(a, ret_val, str, ...) \
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if (!(a)) { \
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ESP_LOGE(MB_SLAVE_TAG, "%s(%u): " str, __FUNCTION__, __LINE__, ##__VA_ARGS__); \
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return (ret_val); \
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}
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#define MB_SLAVE_ASSERT(con) do { \
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if (!(con)) { ESP_LOGE(MB_SLAVE_TAG, "assert errno:%d, errno_str: !(%s)", errno, strerror(errno)); assert(0 && #con); } \
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} while (0)
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/**
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* @brief Device communication parameters for master
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*/
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typedef struct {
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mb_mode_type_t mode; /*!< Modbus communication mode */
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uint8_t slave_addr; /*!< Slave address field */
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uart_port_t port; /*!< Modbus communication port (UART) number */
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uint32_t baudrate; /*!< Modbus baudrate */
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uart_parity_t parity; /*!< Modbus UART parity settings */
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} mb_slave_comm_info_t;
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/**
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* @brief Modbus controller handler structure
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*/
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typedef struct {
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mb_port_type_t port_type; /*!< port type */
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mb_communication_info_t mbs_comm; /*!< communication info */
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TaskHandle_t mbs_task_handle; /*!< task handle */
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EventGroupHandle_t mbs_event_group; /*!< controller event group */
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QueueHandle_t mbs_notification_queue_handle; /*!< controller notification queue */
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mb_register_area_descriptor_t mbs_area_descriptors[MB_PARAM_COUNT]; /*!< register area descriptors */
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} mb_slave_options_t;
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typedef mb_event_group_t (*iface_check_event)(mb_event_group_t); /*!< Interface method check_event */
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typedef esp_err_t (*iface_get_param_info)(mb_param_info_t*, uint32_t); /*!< Interface method get_param_info */
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typedef esp_err_t (*iface_set_descriptor)(mb_register_area_descriptor_t); /*!< Interface method set_descriptor */
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/**
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* @brief Request mode for parameter to use in data dictionary
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*/
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typedef struct
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{
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mb_slave_options_t opts; /*!< Modbus slave options */
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// Functional pointers to internal static functions of the implementation (public interface methods)
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iface_init init; /*!< Interface method init */
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iface_destroy destroy; /*!< Interface method destroy */
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iface_setup setup; /*!< Interface method setup */
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iface_start start; /*!< Interface method start */
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iface_check_event check_event; /*!< Interface method check_event */
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iface_get_param_info get_param_info; /*!< Interface method get_param_info */
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iface_set_descriptor set_descriptor; /*!< Interface method set_descriptor */
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// Modbus register calback function pointers
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reg_discrete_cb slave_reg_cb_discrete; /*!< Stack callback discrete rw method */
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reg_input_cb slave_reg_cb_input; /*!< Stack callback input rw method */
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reg_holding_cb slave_reg_cb_holding; /*!< Stack callback holding rw method */
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reg_coils_cb slave_reg_cb_coils; /*!< Stack callback coils rw method */
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} mb_slave_interface_t;
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#endif
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