kopia lustrzana https://github.com/espressif/esp-idf
232 wiersze
9.0 KiB
C
232 wiersze
9.0 KiB
C
/* Copyright 2018 Espressif Systems (Shanghai) PTE LTD
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* 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.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "esp_err.h" // for esp_err_t
|
|
#include "sdkconfig.h" // for KConfig defines
|
|
#include "mbc_slave.h" // for slave private type definitions
|
|
#include "esp_modbus_common.h" // for common defines
|
|
#include "esp_modbus_slave.h" // for public slave defines
|
|
#include "esp_modbus_callbacks.h" // for modbus callbacks function pointers declaration
|
|
|
|
#ifdef CONFIG_FMB_CONTROLLER_SLAVE_ID_SUPPORT
|
|
|
|
#define MB_ID_BYTE0(id) ((uint8_t)(id))
|
|
#define MB_ID_BYTE1(id) ((uint8_t)(((uint16_t)(id) >> 8) & 0xFF))
|
|
#define MB_ID_BYTE2(id) ((uint8_t)(((uint32_t)(id) >> 16) & 0xFF))
|
|
#define MB_ID_BYTE3(id) ((uint8_t)(((uint32_t)(id) >> 24) & 0xFF))
|
|
|
|
#define MB_CONTROLLER_SLAVE_ID (CONFIG_FMB_CONTROLLER_SLAVE_ID)
|
|
#define MB_SLAVE_ID_SHORT (MB_ID_BYTE3(MB_CONTROLLER_SLAVE_ID))
|
|
|
|
// Slave ID constant
|
|
static uint8_t mb_slave_id[] = { MB_ID_BYTE0(MB_CONTROLLER_SLAVE_ID),
|
|
MB_ID_BYTE1(MB_CONTROLLER_SLAVE_ID),
|
|
MB_ID_BYTE2(MB_CONTROLLER_SLAVE_ID) };
|
|
|
|
#endif
|
|
|
|
// Common interface pointer for slave port
|
|
static mb_slave_interface_t* slave_interface_ptr = NULL;
|
|
|
|
void mbc_slave_init_iface(void* handler)
|
|
{
|
|
slave_interface_ptr = (mb_slave_interface_t*) handler;
|
|
}
|
|
|
|
/**
|
|
* Modbus controller destroy function
|
|
*/
|
|
esp_err_t mbc_slave_destroy(void)
|
|
{
|
|
esp_err_t error = ESP_OK;
|
|
// Is initialization done?
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
// Check if interface has been initialized
|
|
MB_SLAVE_CHECK((slave_interface_ptr->destroy != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
// Call the slave port destroy function
|
|
error = slave_interface_ptr->destroy();
|
|
MB_SLAVE_CHECK((error == ESP_OK),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave destroy failure error=(0x%x).",
|
|
error);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* Setup Modbus controller parameters
|
|
*/
|
|
esp_err_t mbc_slave_setup(void* comm_info)
|
|
{
|
|
esp_err_t error = ESP_OK;
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->setup != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
error = slave_interface_ptr->setup(comm_info);
|
|
MB_SLAVE_CHECK((error == ESP_OK),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave setup failure error=(0x%x).",
|
|
error);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* Start Modbus controller start function
|
|
*/
|
|
esp_err_t mbc_slave_start(void)
|
|
{
|
|
esp_err_t error = ESP_OK;
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->start != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
#ifdef CONFIG_FMB_CONTROLLER_SLAVE_ID_SUPPORT
|
|
// Set the slave ID if the KConfig option is selected
|
|
eMBErrorCode status = eMBSetSlaveID(MB_SLAVE_ID_SHORT, TRUE, (UCHAR*)mb_slave_id, sizeof(mb_slave_id));
|
|
MB_SLAVE_CHECK((status == MB_ENOERR), ESP_ERR_INVALID_STATE, "mb stack set slave ID failure.");
|
|
#endif
|
|
error = slave_interface_ptr->start();
|
|
MB_SLAVE_CHECK((error == ESP_OK),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave start failure error=(0x%x).",
|
|
error);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* Blocking function to get event on parameter group change for application task
|
|
*/
|
|
mb_event_group_t mbc_slave_check_event(mb_event_group_t group)
|
|
{
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
MB_EVENT_NO_EVENTS,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->check_event != NULL),
|
|
MB_EVENT_NO_EVENTS,
|
|
"Slave interface is not correctly initialized.");
|
|
mb_event_group_t event = slave_interface_ptr->check_event(group);
|
|
return event;
|
|
}
|
|
|
|
/**
|
|
* Function to get notification about parameter change from application task
|
|
*/
|
|
esp_err_t mbc_slave_get_param_info(mb_param_info_t* reg_info, uint32_t timeout)
|
|
{
|
|
esp_err_t error = ESP_OK;
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->get_param_info != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
error = slave_interface_ptr->get_param_info(reg_info, timeout);
|
|
MB_SLAVE_CHECK((error == ESP_OK),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave get parameter info failure error=(0x%x).",
|
|
error);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* Function to set area descriptors for modbus parameters
|
|
*/
|
|
esp_err_t mbc_slave_set_descriptor(mb_register_area_descriptor_t descr_data)
|
|
{
|
|
esp_err_t error = ESP_OK;
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->set_descriptor != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
error = slave_interface_ptr->set_descriptor(descr_data);
|
|
MB_SLAVE_CHECK((error == ESP_OK),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave set descriptor failure error=(0x%x).",
|
|
(uint16_t)error);
|
|
return error;
|
|
}
|
|
|
|
/**
|
|
* Below are stack callback functions to read/write registers
|
|
*/
|
|
eMBErrorCode eMBRegDiscreteCB(UCHAR * pucRegBuffer, USHORT usAddress,
|
|
USHORT usNDiscrete)
|
|
{
|
|
eMBErrorCode error = MB_ENOERR;
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->slave_reg_cb_discrete != NULL),
|
|
error,
|
|
"Slave interface is not correctly initialized.");
|
|
error = slave_interface_ptr->slave_reg_cb_discrete(pucRegBuffer, usAddress, usNDiscrete);
|
|
|
|
return error;
|
|
}
|
|
|
|
eMBErrorCode eMBRegCoilsCB(UCHAR* pucRegBuffer, USHORT usAddress,
|
|
USHORT usNCoils, eMBRegisterMode eMode)
|
|
{
|
|
eMBErrorCode error = MB_ENOERR;
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->slave_reg_cb_coils != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
error = slave_interface_ptr->slave_reg_cb_coils(pucRegBuffer, usAddress,
|
|
usNCoils, eMode);
|
|
return error;
|
|
}
|
|
|
|
eMBErrorCode eMBRegHoldingCB(UCHAR * pucRegBuffer, USHORT usAddress,
|
|
USHORT usNRegs, eMBRegisterMode eMode)
|
|
{
|
|
eMBErrorCode error = MB_ENOERR;
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->slave_reg_cb_holding != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
error = slave_interface_ptr->slave_reg_cb_holding(pucRegBuffer, usAddress,
|
|
usNRegs, eMode);
|
|
return error;
|
|
}
|
|
|
|
eMBErrorCode eMBRegInputCB(UCHAR * pucRegBuffer, USHORT usAddress,
|
|
USHORT usNRegs)
|
|
{
|
|
eMBErrorCode error = MB_ENOERR;
|
|
MB_SLAVE_CHECK((slave_interface_ptr != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
MB_SLAVE_CHECK((slave_interface_ptr->slave_reg_cb_input != NULL),
|
|
ESP_ERR_INVALID_STATE,
|
|
"Slave interface is not correctly initialized.");
|
|
error = slave_interface_ptr->slave_reg_cb_input(pucRegBuffer, usAddress, usNRegs);
|
|
return error;
|
|
}
|