496 lines
16 KiB
C
496 lines
16 KiB
C
/**
|
|
* @file Mesh_Network.c
|
|
* @brief Mesh network layer used by OTA and APP
|
|
* @author Hendrik Schutter, init based in ESP32-IDE code
|
|
* @date 20.01.2021
|
|
*
|
|
* Additional Infos: Start network and send and receive data.
|
|
*/
|
|
|
|
#include "Mesh_Network.h"
|
|
|
|
static const char *LOG_TAG = "mesh_network";
|
|
|
|
//w: errMeshNetworkInitialize
|
|
//r: errMeshNetworkInitialize;vMeshNetworkGetOwnAddr;errMeshNetworkGetChildren
|
|
uint8_t u8ownMAC[6];
|
|
|
|
//w: errMeshNetworkInitialize; vMeshNetworkMeshEventHandler
|
|
//r: vMeshNetworkMeshEventHandler
|
|
esp_netif_t* pNetifSta;
|
|
|
|
//w: errMeshNetworkInitialize; vMeshNetworkMeshEventHandler
|
|
//r: errMeshNetworkInitialize;
|
|
bool bIsMeshConnected;
|
|
|
|
//w: errMeshNetworkInitialize; vMeshNetworkMeshEventHandler
|
|
//r: vMeshNetworkMeshEventHandler
|
|
int32_t i32MeshLayer;
|
|
|
|
//w: errMeshNetworkInitialize; vMeshNetworkMeshEventHandler
|
|
//r: vMeshNetworkMeshEventHandler
|
|
mesh_addr_t meshParentAddr;
|
|
|
|
//function pointer for callbacks
|
|
void (*pAppRxHandle)(const uint8_t* const, const uint8_t* const);
|
|
void (*pOTAChildConnectHandle)(const uint8_t* const);
|
|
void (*pOTAMessageHandle)(const MESH_PACKET_t* const);
|
|
void (*pChangeStateOfServerWorkerHandle)(const bool );
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkInitialize()
|
|
* @brief Starts the mesh network
|
|
* @param void
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter, init based in ESP32-IDE code
|
|
* @date 20.01.2021
|
|
*
|
|
* Initialize the network
|
|
*/
|
|
esp_err_t errMeshNetworkInitialize(void)
|
|
{
|
|
//init module variables
|
|
esp_err_t err;
|
|
bIsMeshConnected = false;
|
|
i32MeshLayer = -1;
|
|
pNetifSta = NULL;
|
|
|
|
err = nvs_flash_init(); //init non-volatile storage
|
|
|
|
#ifdef ERASE_NVS
|
|
if(err == ESP_ERR_NVS_NO_FREE_PAGES) //check if storage is full
|
|
{
|
|
ERROR_CHECK(nvs_flash_erase());
|
|
}
|
|
#endif
|
|
|
|
// tcpip initialization
|
|
ERROR_CHECK(esp_netif_init());
|
|
|
|
//event initialization
|
|
ERROR_CHECK(esp_event_loop_create_default());
|
|
|
|
//create network interfaces for mesh (only station instance saved for further manipulation, soft AP instance ignored
|
|
ERROR_CHECK(esp_netif_create_default_wifi_mesh_netifs(&pNetifSta, NULL));
|
|
|
|
//wifi initialization
|
|
ERROR_CHECK(errMeshNetworkInitializeWiFi());
|
|
|
|
//mesh initialization
|
|
ERROR_CHECK(esp_mesh_init());
|
|
|
|
//mesh initialization
|
|
ERROR_CHECK(esp_event_handler_register(MESH_EVENT, ESP_EVENT_ANY_ID, &vMeshNetworkMeshEventHandler, NULL));
|
|
|
|
//set mesh topology
|
|
ERROR_CHECK(esp_mesh_set_topology(CONFIG_MESH_TOPOLOGY));
|
|
|
|
//set mesh max layer according to the topology
|
|
ERROR_CHECK(esp_mesh_set_max_layer(CONFIG_MESH_MAX_LAYER));
|
|
ERROR_CHECK(esp_mesh_set_vote_percentage(1));
|
|
ERROR_CHECK(esp_mesh_set_xon_qsize(128));
|
|
|
|
//Disable mesh PS function
|
|
ERROR_CHECK(esp_mesh_disable_ps());
|
|
ERROR_CHECK(esp_mesh_set_ap_assoc_expire(10));
|
|
|
|
mesh_cfg_t cfg = MESH_INIT_CONFIG_DEFAULT();
|
|
|
|
/* mesh ID */
|
|
memcpy((uint8_t *) &cfg.mesh_id, CONFIG_MESH_ID, 6);
|
|
|
|
ERROR_CHECK(errMeshNetworkInitializeRouter(&cfg));
|
|
|
|
/* mesh softAP */
|
|
ERROR_CHECK(esp_mesh_set_ap_authmode(CONFIG_MESH_AP_AUTHMODE));
|
|
cfg.mesh_ap.max_connection = CONFIG_MESH_AP_CONNECTIONS;
|
|
memcpy((uint8_t *) &cfg.mesh_ap.password, CONFIG_MESH_AP_PASSWD,
|
|
strlen(CONFIG_MESH_AP_PASSWD));
|
|
ERROR_CHECK(esp_mesh_set_config(&cfg));
|
|
|
|
/* mesh start */
|
|
ERROR_CHECK(esp_mesh_start());
|
|
|
|
ERROR_CHECK(esp_base_mac_addr_get(u8ownMAC))
|
|
|
|
//debug info
|
|
ESP_LOGD(LOG_TAG, "mesh starts successfully, heap:%d, %s<%d>%s, ps:%d\n", esp_get_minimum_free_heap_size(),
|
|
esp_mesh_is_root_fixed() ? "root fixed" : "root not fixed",
|
|
esp_mesh_get_topology(), esp_mesh_get_topology() ? "(chain)":"(tree)", esp_mesh_is_ps_enabled());
|
|
|
|
|
|
ESP_LOGI(LOG_TAG, "Node MAC: \"%x:%x:%x:%x:%x:%x\" ", u8ownMAC[0], u8ownMAC[1], u8ownMAC[2], u8ownMAC[3], u8ownMAC[4], u8ownMAC[5]);
|
|
|
|
return ESP_OK;
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkInitializeWiFi()
|
|
* @brief Starts the WiFI
|
|
* @param void
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter, init based in ESP32-IDE code
|
|
* @date 20.01.2021
|
|
*
|
|
* start the wifi
|
|
*/
|
|
esp_err_t errMeshNetworkInitializeWiFi()
|
|
{
|
|
//wifi initialization
|
|
esp_err_t err = ESP_OK;
|
|
wifi_init_config_t config = WIFI_INIT_CONFIG_DEFAULT();
|
|
ERROR_CHECK(esp_wifi_init(&config));
|
|
ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &vMeshNetworkIpEventHandler, NULL));
|
|
ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_FLASH));
|
|
ERROR_CHECK(esp_wifi_start());
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkInitializeRouter(mesh_cfg_t* cfg)
|
|
* @brief Starts the router
|
|
* @param cfg router config
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter, init based in ESP32-IDE code
|
|
* @date 20.01.2021
|
|
*
|
|
* Initialize the network
|
|
*/
|
|
esp_err_t errMeshNetworkInitializeRouter(mesh_cfg_t* cfg)
|
|
{
|
|
//router initialization
|
|
esp_err_t err = ESP_OK;
|
|
(*cfg).channel = CONFIG_MESH_CHANNEL;
|
|
(*cfg).router.ssid_len = strlen(CONFIG_MESH_ROUTER_SSID);
|
|
memcpy((uint8_t *) &(*cfg).router.ssid, CONFIG_MESH_ROUTER_SSID, (*cfg).router.ssid_len);
|
|
memcpy((uint8_t *) &(*cfg).router.password, CONFIG_MESH_ROUTER_PASSWD,
|
|
strlen(CONFIG_MESH_ROUTER_PASSWD));
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkSetChildConnectedHandle(void (*pChildConnectHandleTmp)(const uint8_t* const cpcu8Data))
|
|
* @brief set callback for event when child connects
|
|
* @param (*pChildConnectHandleTmp)(const uint8_t* const cpcu8Data) function pointer
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter
|
|
* @date 20.01.2021
|
|
*/
|
|
esp_err_t errMeshNetworkSetChildConnectedHandle(void (*pChildConnectHandleTmp)(const uint8_t* const cpcu8Data))
|
|
{
|
|
pOTAChildConnectHandle = pChildConnectHandleTmp;
|
|
return ESP_OK;
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkSetAppReceiveHandle(void (*pAppRxHandleTmp)(const uint8_t* const cpcu8Data, const uint8_t* const pu8Sender))
|
|
* @brief set callback for event when application data is received
|
|
* @param (*pAppRxHandleTmp)(const uint8_t* const cpcu8Data, const uint8_t* const pu8Sender) function pointer
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter
|
|
* @date 20.01.2021
|
|
*/
|
|
esp_err_t errMeshNetworkSetAppReceiveHandle(void (*pAppRxHandleTmp)(const uint8_t* const cpcu8Data, const uint8_t* const pu8Sender))
|
|
{
|
|
pAppRxHandle = pAppRxHandleTmp; //set handle from app as receive handle if an app packet is received
|
|
return ESP_OK;
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkSetOTAMessageHandleHandle(void (*pOTAMessageHandleTmp)(const MESH_PACKET_t* const cpcuMeshPacket))
|
|
* @brief set callback for event when OTA message is received
|
|
* @param (*pOTAMessageHandleTmp)(const MESH_PACKET_t* const cpcuMeshPacket) function pointer
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter
|
|
* @date 20.01.2021
|
|
*/
|
|
esp_err_t errMeshNetworkSetOTAMessageHandleHandle(void (*pOTAMessageHandleTmp)(const MESH_PACKET_t* const cpcuMeshPacket))
|
|
{
|
|
pOTAMessageHandle = pOTAMessageHandleTmp;
|
|
return ESP_OK;
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkSetChangeStateOfServerWorkerHandle(void (*pChangeStateOfServerWorkerHandleTmp)(const bool cbState))
|
|
* @brief set callback for event when connectify to server is changed
|
|
* @param (*pChangeStateOfServerWorkerHandleTmp)(const bool cbState) function pointer
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter
|
|
* @date 20.01.2021
|
|
*/
|
|
esp_err_t errMeshNetworkSetChangeStateOfServerWorkerHandle(void (*pChangeStateOfServerWorkerHandleTmp)(const bool cbState))
|
|
{
|
|
pChangeStateOfServerWorkerHandle = pChangeStateOfServerWorkerHandleTmp;
|
|
return ESP_OK;
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkSendMeshPacket(const mesh_addr_t* const cpcAddrDest, const MESH_PACKET_t* const cpcPacket)
|
|
* @brief send packet to mesh node
|
|
* @param cpcAddrDest address from mesh node
|
|
* @param cpcPacket packet to send
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter
|
|
* @date 20.01.2021
|
|
*/
|
|
esp_err_t errMeshNetworkSendMeshPacket(const mesh_addr_t* const cpcAddrDest, const MESH_PACKET_t* const cpcPacket)
|
|
{
|
|
esp_err_t err;
|
|
mesh_data_t data;
|
|
uint8_t tx_buf[CONFIG_MESH_MESSAGE_SIZE] = { 0, };
|
|
data.data = tx_buf;
|
|
data.size = sizeof(tx_buf);
|
|
data.proto = MESH_PROTO_BIN;
|
|
data.tos = MESH_TOS_P2P;
|
|
memcpy(tx_buf, (uint8_t *)cpcPacket, sizeof(MESH_PACKET_t));
|
|
|
|
err = esp_mesh_send(cpcAddrDest, &data, MESH_DATA_P2P, NULL, 0);
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* @fn bool bMeshNetworkIsRootNode()
|
|
* @brief return true if this node is the root
|
|
* @param void
|
|
* @return boolean
|
|
* @author Hendrik Schutter
|
|
* @date 21.01.2021
|
|
*/
|
|
bool bMeshNetworkIsRootNode(void)
|
|
{
|
|
return esp_mesh_is_root();
|
|
}
|
|
|
|
/**
|
|
* @fn bool bMeshNetworkIsNodeNeighbour(const mesh_addr_t* const cpcNode)
|
|
* @brief return true if node is neighbour if this
|
|
* @param cpcNode to check
|
|
* @return boolean
|
|
* @author Hendrik Schutter
|
|
* @date 21.01.2021
|
|
*/
|
|
bool bMeshNetworkIsNodeNeighbour(const mesh_addr_t* const cpcNode)
|
|
{
|
|
esp_err_t err = ESP_OK;
|
|
bool bReturn = false;
|
|
mesh_addr_t addrParent; //addr of parent node
|
|
mesh_addr_t childrenAddr[CONFIG_MESH_ROUTE_TABLE_SIZE]; //array of children attached to this node
|
|
uint16_t u16ChildrenSize = 0U; //number of children attached to this node
|
|
|
|
err = errMeshNetworkGetParentNode(&addrParent);
|
|
|
|
if(err == ESP_OK)
|
|
{
|
|
if(bMeshNetworkCheckMACEquality(cpcNode->addr, addrParent.addr) == true)
|
|
{
|
|
bReturn = true; //node was found
|
|
}
|
|
}
|
|
|
|
if(bReturn == false)
|
|
{
|
|
err = ESP_OK; //reset error code
|
|
|
|
ERROR_CHECK(errMeshNetworkGetChildren(childrenAddr, &u16ChildrenSize)); //get all children
|
|
|
|
for (uint16_t u16Index = 0; ((u16Index < u16ChildrenSize) && (err == ESP_OK) && (bReturn == false)); u16Index++)
|
|
{
|
|
if(bMeshNetworkCheckMACEquality(cpcNode->addr, childrenAddr[u16Index].addr) == true)
|
|
{
|
|
bReturn = true; //node was found
|
|
}
|
|
}
|
|
}
|
|
return bReturn;
|
|
}
|
|
|
|
|
|
/**
|
|
* @fn bool bMeshNetworkCheckMACEquality(const uint8_t* const cpcu8aMAC, const uint8_t* const cpcu8bMAC)
|
|
* @brief returns true if MAC address is equal
|
|
* @param cpcu8aMAC first MAC
|
|
* @param cpcu8bMAC second MAC
|
|
* @return boolean
|
|
* @author Hendrik Schutter
|
|
* @date 21.01.2021
|
|
*/
|
|
bool bMeshNetworkCheckMACEquality(const uint8_t* const cpcu8aMAC, const uint8_t* const cpcu8bMAC)
|
|
{
|
|
bool bRet = true;
|
|
uint8_t index = 0;
|
|
|
|
while ((index < 6) && (bRet == true))
|
|
{
|
|
if(cpcu8aMAC[index] != cpcu8bMAC[index])
|
|
{
|
|
bRet = false;
|
|
}
|
|
|
|
if(index == 5)
|
|
{
|
|
//last byte of mac
|
|
if(abs((cpcu8aMAC[index] - cpcu8bMAC[index])) <= 1)
|
|
{
|
|
bRet = true; //last byte differs 1 ore less
|
|
}
|
|
}
|
|
index++;
|
|
}
|
|
return bRet;
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkStartReceiveTask()
|
|
* @brief start the task to receive the mesh packets
|
|
* @param void
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter
|
|
* @date 21.01.2021
|
|
*/
|
|
esp_err_t errMeshNetworkStartReceiveTask(void)
|
|
{
|
|
esp_err_t err = ESP_OK;
|
|
BaseType_t xReturned;
|
|
|
|
xReturned = xTaskCreate(vMeshNetworkTaskReceiveMeshData, "ReceiveMeshData", 7000, NULL, 5, NULL);
|
|
|
|
if(xReturned != pdPASS)
|
|
{
|
|
err = ESP_FAIL;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* @fn vMeshNetworkGetOwnAddr(mesh_addr_t* const cpMeshOwnAddr)
|
|
* @brief return own MAC addr
|
|
* @param cpMeshOwnAddr pointer to own mac
|
|
* @return void
|
|
* @author Hendrik Schutter
|
|
* @date 21.01.2021
|
|
*/
|
|
void vMeshNetworkGetOwnAddr(mesh_addr_t* const cpMeshOwnAddr)
|
|
{
|
|
memcpy(cpMeshOwnAddr->addr, u8ownMAC, 6);
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkGetChildren(mesh_addr_t* const cpChildren, uint16_t* const cpu16ChildrenSize)
|
|
* @brief get all connected children to node in array
|
|
* @param cpChildren pointer to array
|
|
* @param cpu16ChildrenSize pointer to size of array
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter
|
|
* @date 21.01.2021
|
|
*/
|
|
esp_err_t errMeshNetworkGetChildren(mesh_addr_t* const cpChildren, uint16_t* const cpu16ChildrenSize)
|
|
{
|
|
esp_err_t err = ESP_OK;
|
|
int route_table_size = 0;
|
|
*cpu16ChildrenSize = 0;
|
|
mesh_addr_t route_table[CONFIG_MESH_ROUTE_TABLE_SIZE];
|
|
ERROR_CHECK(esp_mesh_get_routing_table((mesh_addr_t *) &route_table, (CONFIG_MESH_ROUTE_TABLE_SIZE * 6), &route_table_size));
|
|
|
|
if (err == ESP_OK)
|
|
{
|
|
for(uint16_t index = 0; index < esp_mesh_get_routing_table_size(); index++)
|
|
{
|
|
if(! (bMeshNetworkCheckMACEquality(u8ownMAC, route_table[index].addr)) )
|
|
{
|
|
//child node
|
|
//ESP_LOGI(LOG_TAG, "adding Node: \"0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\" ", route_table[index].addr[0], route_table[index].addr[1], route_table[index].addr[2], route_table[index].addr[3], route_table[index].addr[4], route_table[index].addr[5]);
|
|
cpChildren[*cpu16ChildrenSize] = route_table[index];
|
|
(*cpu16ChildrenSize) = (*cpu16ChildrenSize)+1;
|
|
}
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* @fn void vMeshNetworkTaskReceiveMeshData(void *arg)
|
|
* @brief Task to receive all mesh packets
|
|
* @param arg
|
|
* @return void
|
|
* @author Hendrik Schutter
|
|
* @date 21.01.2021
|
|
*/
|
|
void vMeshNetworkTaskReceiveMeshData(void *arg)
|
|
{
|
|
esp_err_t err;
|
|
mesh_addr_t from;
|
|
mesh_data_t data;
|
|
uint8_t rx_buf[CONFIG_MESH_MESSAGE_SIZE] = { 0, };
|
|
int flag = 0;
|
|
data.data = rx_buf;
|
|
data.size = CONFIG_MESH_MESSAGE_SIZE;
|
|
|
|
while (true)
|
|
{
|
|
data.size = CONFIG_MESH_MESSAGE_SIZE;
|
|
err = esp_mesh_recv(&from, &data, portMAX_DELAY, &flag, NULL, 0);
|
|
if (err != ESP_OK || !data.size)
|
|
{
|
|
ESP_LOGE(LOG_TAG, "err:0x%x, size:%d", err, data.size);
|
|
continue;
|
|
}
|
|
MESH_PACKET_t packet;
|
|
memcpy(&packet, (uint8_t *)rx_buf, sizeof(MESH_PACKET_t)); //parse MESH_PACKET_t
|
|
memcpy(&packet.meshSenderAddr, &from, sizeof(mesh_addr_t)); //copy sender into packet
|
|
|
|
switch (packet.type)
|
|
{
|
|
case APP_Data:
|
|
ESP_LOGD(LOG_TAG, "recv: APP_Data");
|
|
//call the rx handle from app
|
|
pAppRxHandle(packet.au8Payload, from.addr); //hand over payload and sender of this mesh packet
|
|
break;
|
|
case OTA_Version_Request:
|
|
case OTA_Version_Response:
|
|
case OTA_Data:
|
|
case OTA_ACK:
|
|
case OTA_Complete:
|
|
case OTA_Abort:
|
|
//call the rx handle from OTA
|
|
if(pOTAMessageHandle)
|
|
{
|
|
pOTAMessageHandle(&packet);
|
|
}
|
|
break;
|
|
default:
|
|
ESP_LOGE(LOG_TAG, "recv: something");
|
|
break;
|
|
}//end switch
|
|
} //end while
|
|
}
|
|
|
|
/**
|
|
* @fn esp_err_t errMeshNetworkGetParentNode(mesh_addr_t* const cpMeshParentAddr)
|
|
* @brief get parrent node if connected to it
|
|
* @param cpMeshParentAddr pointer to parent node addrs
|
|
* @return ESP32 error code
|
|
* @author Hendrik Schutter
|
|
* @date 21.01.2021
|
|
*/
|
|
esp_err_t errMeshNetworkGetParentNode(mesh_addr_t* const cpMeshParentAddr)
|
|
{
|
|
esp_err_t err = ESP_OK;
|
|
|
|
if((bIsMeshConnected == false) || (esp_mesh_is_root()))
|
|
{
|
|
//this node is not connected or is the root --> this node has no parent
|
|
err = ESP_FAIL;
|
|
}
|
|
else
|
|
{
|
|
//node has parent
|
|
memcpy(cpMeshParentAddr, &meshParentAddr, sizeof(mesh_addr_t));
|
|
}
|
|
return err;
|
|
}
|
|
|
|
|
|
|
|
|