esp-idf/examples/mesh/internal_transceiver/main/mesh_main.c

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/* Mesh Internal Transceiver Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include "esp_wifi.h"
#include "esp_system.h"
#include "esp_event_loop.h"
#include "esp_log.h"
#include "esp_mesh.h"
#include "esp_mesh_internal.h"
#include "mesh_light.h"
#include "nvs_flash.h"
/*******************************************************
* Macros
*******************************************************/
//#define MESH_P2P_TOS_OFF
//#define MESH_ROOT_TO_GROUP
/*******************************************************
* Constants
*******************************************************/
#define RX_SIZE (1500)
#define TX_SIZE (1460)
/*******************************************************
* Variable Definitions
*******************************************************/
static const char *MESH_TAG = "mesh_main";
static const uint8_t MESH_ID[6] = { 0x77, 0x77, 0x77, 0x77, 0x77, 0x77};
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static uint8_t tx_buf[TX_SIZE] = { 0, };
static uint8_t rx_buf[RX_SIZE] = { 0, };
static bool is_running = true;
static bool is_mesh_connected = false;
static mesh_addr_t mesh_parent_addr;
static int mesh_layer = -1;
mesh_light_ctl_t light_on = {
.cmd = MESH_CONTROL_CMD,
.on = 1,
.token_id = MESH_TOKEN_ID,
.token_value = MESH_TOKEN_VALUE,
};
mesh_light_ctl_t light_off = {
.cmd = MESH_CONTROL_CMD,
.on = 0,
.token_id = MESH_TOKEN_ID,
.token_value = MESH_TOKEN_VALUE,
};
/*******************************************************
* Function Declarations
*******************************************************/
/*******************************************************
* Function Definitions
*******************************************************/
void mesh_send_to_group(const mesh_data_t *data, const mesh_addr_t *group, int seqno)
{
esp_err_t err = esp_mesh_send(group, data,
MESH_DATA_P2P | MESH_DATA_GROUP,
NULL, 0);
if (err) {
ESP_LOGE(MESH_TAG,
"[GROUP:%d][L:%d][rtableSize:%d]parent:"MACSTR" to "MACSTR", heap:%d[err:0x%x, proto:%d, tos:%d]",
seqno, mesh_layer, esp_mesh_get_routing_table_size(),
MAC2STR(mesh_parent_addr.addr), MAC2STR(group->addr),
esp_get_free_heap_size(), err, data->proto, data->tos);
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} else {
ESP_LOGW(MESH_TAG,
"[GROUP:%d][L:%d][rtableSize:%d]parent:"MACSTR" to "MACSTR", heap:%d[err:0x%x, proto:%d, tos:%d]",
seqno, mesh_layer, esp_mesh_get_routing_table_size(),
MAC2STR(mesh_parent_addr.addr), MAC2STR(group->addr),
esp_get_free_heap_size(), err, data->proto, data->tos);
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}
}
void esp_mesh_p2p_tx_main(void *arg)
{
int i;
esp_err_t err;
int send_count = 0;
mesh_addr_t route_table[CONFIG_MESH_ROUTE_TABLE_SIZE];
int route_table_size = 0;
mesh_data_t data;
data.data = tx_buf;
data.size = sizeof(tx_buf);
data.proto = MESH_PROTO_BIN;
#ifdef MESH_P2P_TOS_OFF
data.tos = MESH_TOS_DEF;
#endif /* MESH_P2P_TOS_OFF */
is_running = true;
while (is_running) {
/* normal nodes rather than root do nothing but print */
if (!esp_mesh_is_root()) {
ESP_LOGI(MESH_TAG, "layer:%d, rtableSize:%d, %s%s", mesh_layer,
esp_mesh_get_routing_table_size(),
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is_mesh_connected ? "CONNECT" : "DISCONNECT",
esp_mesh_is_root() ? "<ROOT>" : "[NODE]");
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vTaskDelay(10 * 1000 / portTICK_RATE_MS);
continue;
}
esp_mesh_get_routing_table((mesh_addr_t *) &route_table,
CONFIG_MESH_ROUTE_TABLE_SIZE * 6, &route_table_size);
if (send_count && !(send_count % 100)) {
ESP_LOGI(MESH_TAG, "size:%d/%d,send_count:%d", route_table_size,
esp_mesh_get_routing_table_size(), send_count);
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}
send_count++;
tx_buf[25] = (send_count >> 24) & 0xff;
tx_buf[24] = (send_count >> 16) & 0xff;
tx_buf[23] = (send_count >> 8) & 0xff;
tx_buf[22] = (send_count >> 0) & 0xff;
if (send_count % 2) {
memcpy(tx_buf, (uint8_t *)&light_on, sizeof(light_on));
} else {
memcpy(tx_buf, (uint8_t *)&light_off, sizeof(light_off));
}
#ifdef MESH_ROOT_TO_GROUP
mesh_send_to_group(&data, (mesh_addr_t *)MESH_GROUP_ID, send_count);
vTaskDelay(1 * 1000 / portTICK_RATE_MS);
continue;
#endif
for (i = 0; i < route_table_size; i++) {
err = esp_mesh_send(&route_table[i], &data, MESH_DATA_P2P, NULL, 0);
if (err) {
ESP_LOGE(MESH_TAG,
"[ROOT-2-UNICAST:%d][L:%d]parent:"MACSTR" to "MACSTR", heap:%d[err:0x%x, proto:%d, tos:%d]",
send_count, mesh_layer, MAC2STR(mesh_parent_addr.addr),
MAC2STR(route_table[i].addr), esp_get_free_heap_size(),
err, data.proto, data.tos);
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} else if (!(send_count % 100)) {
ESP_LOGW(MESH_TAG,
"[ROOT-2-UNICAST:%d][L:%d][rtableSize:%d]parent:"MACSTR" to "MACSTR", heap:%d[err:0x%x, proto:%d, tos:%d]",
send_count, mesh_layer,
esp_mesh_get_routing_table_size(),
MAC2STR(mesh_parent_addr.addr),
MAC2STR(route_table[i].addr), esp_get_free_heap_size(),
err, data.proto, data.tos);
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}
}
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/* if route_table_size is less than 10, add delay to avoid watchdog in this task. */
if (route_table_size < 10) {
vTaskDelay(1 * 1000 / portTICK_RATE_MS);
}
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}
vTaskDelete(NULL);
}
void esp_mesh_p2p_rx_main(void *arg)
{
int recv_count = 0;
esp_err_t err;
mesh_addr_t from;
int send_count = 0;
mesh_data_t data;
int flag = 0;
data.data = rx_buf;
data.size = RX_SIZE;
is_running = true;
while (is_running) {
data.size = RX_SIZE;
err = esp_mesh_recv(&from, &data, portMAX_DELAY, &flag, NULL, 0);
if (err != ESP_OK || !data.size) {
ESP_LOGE(MESH_TAG, "err:0x%x, size:%d", err, data.size);
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continue;
}
/* extract send count */
if (data.size >= sizeof(send_count)) {
send_count = (data.data[25] << 24) | (data.data[24] << 16)
| (data.data[23] << 8) | data.data[22];
}
recv_count++;
/* process light control */
mesh_light_process(&from, data.data, data.size);
if (!(recv_count % 1)) {
ESP_LOGW(MESH_TAG,
"[#RX:%d/%d][L:%d] parent:"MACSTR", receive from "MACSTR", size:%d, heap:%d, flag:%d[err:0x%x, proto:%d, tos:%d]",
recv_count, send_count, mesh_layer,
MAC2STR(mesh_parent_addr.addr), MAC2STR(from.addr),
data.size, esp_get_free_heap_size(), flag, err, data.proto,
data.tos);
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}
}
vTaskDelete(NULL);
}
esp_err_t esp_mesh_comm_p2p_start(void)
{
static bool is_comm_p2p_started = false;
if (!is_comm_p2p_started) {
is_comm_p2p_started = true;
xTaskCreate(esp_mesh_p2p_tx_main, "MPTX", 3072, NULL, 5, NULL);
xTaskCreate(esp_mesh_p2p_rx_main, "MPRX", 3072, NULL, 5, NULL);
}
return ESP_OK;
}
void esp_mesh_event_handler(mesh_event_t event)
{
#ifdef MESH_ROOT_TO_GROUP
mesh_addr_t group;
#endif
static uint8_t last_layer = 0;
static int disconnect_count = 0;
ESP_LOGD(MESH_TAG, "esp_event_handler:%d", event.id);
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switch (event.id) {
case MESH_EVENT_STARTED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_STARTED>");
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break;
case MESH_EVENT_STOPPED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_STOPPED>");
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break;
case MESH_EVENT_CHILD_CONNECTED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_CHILD_CONNECTED>aid:%d, "MACSTR"",
event.info.child_connected.aid,
MAC2STR(event.info.child_connected.mac));
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break;
case MESH_EVENT_CHILD_DISCONNECTED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_CHILD_DISCONNECTED>aid:%d, "MACSTR"",
event.info.child_disconnected.aid,
MAC2STR(event.info.child_disconnected.mac));
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break;
case MESH_EVENT_ROUTING_TABLE_ADD:
ESP_LOGW(MESH_TAG, "<MESH_EVENT_ROUTING_TABLE_ADD>add %d, new:%d",
event.info.routing_table.rt_size_change,
event.info.routing_table.rt_size_new);
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break;
case MESH_EVENT_ROUTING_TABLE_REMOVE:
ESP_LOGW(MESH_TAG, "<MESH_EVENT_ROUTING_TABLE_REMOVE>remove %d, new:%d",
event.info.routing_table.rt_size_change,
event.info.routing_table.rt_size_new);
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break;
case MESH_EVENT_NO_PARNET_FOUND:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_NO_PARNET_FOUND>scan times:%d",
event.info.no_parent.scan_times);
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/* TODO handler for the failure */
break;
case MESH_EVENT_PARENT_CONNECTED:
mesh_layer = event.info.connected.self_layer;
memcpy(&mesh_parent_addr.addr, event.info.connected.connected.bssid, 6);
ESP_LOGI(MESH_TAG,
"<MESH_EVENT_PARENT_CONNECTED>layer:%d-->%d, parent:"MACSTR"%s, discnx:%d",
last_layer, mesh_layer, MAC2STR(mesh_parent_addr.addr),
esp_mesh_is_root() ? "<ROOT>" :
(mesh_layer == 2) ? "<layer2>" : "", disconnect_count);
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disconnect_count = 0;
last_layer = mesh_layer;
mesh_connected_indicator(mesh_layer);
is_mesh_connected = true;
if (esp_mesh_is_root()) {
tcpip_adapter_dhcpc_start(TCPIP_ADAPTER_IF_STA);
}
#ifdef MESH_ROOT_TO_GROUP
if (mesh_layer == 3) {
ESP_ERROR_CHECK(
esp_mesh_set_group_id((mesh_addr_t * ) MESH_GROUP_ID, 1))
ESP_ERROR_CHECK(esp_mesh_get_group_list(&group, 1))
ESP_LOGI(MESH_TAG, "num:%d, group "MACSTR"\n",
esp_mesh_get_group_num(), MAC2STR(group.addr));
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}
#endif
esp_mesh_comm_p2p_start();
break;
case MESH_EVENT_PARENT_DISCONNECTED:
ESP_LOGI(MESH_TAG,
"<MESH_EVENT_PARENT_DISCONNECTED>reason:%d, count:%d",
event.info.disconnected.reason, disconnect_count);
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if (event.info.disconnected.reason == 201) {
disconnect_count++;
}
is_mesh_connected = false;
mesh_disconnected_indicator();
break;
case MESH_EVENT_LAYER_CHANGE:
mesh_layer = event.info.layer_change.new_layer;
ESP_LOGI(MESH_TAG, "<MESH_EVENT_LAYER_CHANGE>layer:%d-->%d%s",
last_layer, mesh_layer,
esp_mesh_is_root() ? "<ROOT>" :
(mesh_layer == 2) ? "<layer2>" : "");
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last_layer = mesh_layer;
mesh_connected_indicator(mesh_layer);
break;
case MESH_EVENT_ROOT_ADDRESS:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_ADDRESS>rc_addr:"MACSTR"",
MAC2STR(event.info.root_addr.addr));
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break;
case MESH_EVENT_ROOT_GOT_IP:
/* root starts to connect to server */
ESP_LOGI(MESH_TAG,
"<MESH_EVENT_ROOT_GOT_IP>sta ip: " IPSTR ", mask: " IPSTR ", gw: " IPSTR,
IP2STR(&event.info.got_ip.ip_info.ip),
IP2STR(&event.info.got_ip.ip_info.netmask),
IP2STR(&event.info.got_ip.ip_info.gw));
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break;
case MESH_EVENT_ROOT_LOST_IP:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_LOST_IP>");
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break;
case MESH_EVENT_VOTE_STARTED:
ESP_LOGI(MESH_TAG,
"<MESH_EVENT_VOTE_STARTED>attempts:%d, reason:%d, rc_addr:"MACSTR"",
event.info.vote_started.attempts,
event.info.vote_started.reason,
MAC2STR(event.info.vote_started.rc_addr.addr));
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break;
case MESH_EVENT_VOTE_STOPPED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_VOTE_DONE>");
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break;
case MESH_EVENT_ROOT_SWITCH_REQ:
ESP_LOGI(MESH_TAG,
"<MESH_EVENT_ROOT_SWITCH_REQ>reason:%d, rc_addr:"MACSTR"",
event.info.switch_req.reason,
MAC2STR( event.info.switch_req.rc_addr.addr));
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break;
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case MESH_EVENT_ROOT_SWITCH_ACK:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_SWITCH_ACK>");
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break;
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case MESH_EVENT_TODS_STATE:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_TODS_REACHABLE>state:%d",
event.info.toDS_state);
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break;
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case MESH_EVENT_ROOT_FIXED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_FIXED>%s",
event.info.root_fixed.is_fixed ? "fixed" : "not fixed");
break;
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default:
ESP_LOGI(MESH_TAG, "unknown");
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break;
}
}
void app_main(void)
{
ESP_ERROR_CHECK(mesh_light_init());
ESP_ERROR_CHECK(nvs_flash_init());
/* tcpip initialization */
tcpip_adapter_init();
/* for mesh
* stop DHCP server on softAP interface by default
* stop DHCP client on station interface by default
* */
ESP_ERROR_CHECK(tcpip_adapter_dhcps_stop(TCPIP_ADAPTER_IF_AP));
ESP_ERROR_CHECK(tcpip_adapter_dhcpc_stop(TCPIP_ADAPTER_IF_STA));
#if 0
/* static ip settings */
tcpip_adapter_ip_info_t sta_ip;
sta_ip.ip.addr = ipaddr_addr("192.168.1.102");
sta_ip.gw.addr = ipaddr_addr("192.168.1.1");
sta_ip.netmask.addr = ipaddr_addr("255.255.255.0");
tcpip_adapter_set_ip_info(WIFI_IF_STA, &sta_ip);
#endif
/* wifi initialization */
ESP_ERROR_CHECK(esp_event_loop_init(NULL, NULL));
wifi_init_config_t config = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&config));
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_FLASH));
ESP_ERROR_CHECK(esp_wifi_start());
/* mesh initialization */
ESP_ERROR_CHECK(esp_mesh_init());
ESP_ERROR_CHECK(esp_mesh_set_max_layer(CONFIG_MESH_MAX_LAYER));
ESP_ERROR_CHECK(esp_mesh_set_ap_authmode(CONFIG_MESH_AP_AUTHMODE));
ESP_ERROR_CHECK(esp_mesh_set_vote_percentage(1));
ESP_ERROR_CHECK(esp_mesh_set_ap_assoc_expire(10));
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#ifdef MESH_FIX_ROOT
ESP_ERROR_CHECK(esp_mesh_fix_root(1));
#endif
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mesh_cfg_t cfg = MESH_INIT_CONFIG_DEFAULT();
/* mesh ID */
memcpy((uint8_t *) &cfg.mesh_id, MESH_ID, 6);
/* mesh event callback */
cfg.event_cb = &esp_mesh_event_handler;
/* router */
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));
/* mesh softAP */
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));
ESP_ERROR_CHECK(esp_mesh_set_config(&cfg));
/* set RSSI threshold for connecting to the root */
mesh_switch_parent_t switch_paras ;
ESP_ERROR_CHECK(esp_mesh_get_switch_parent_paras(&switch_paras));
switch_paras.backoff_rssi = -45;
ESP_ERROR_CHECK(esp_mesh_set_switch_parent_paras(&switch_paras));
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#ifdef MESH_SET_PARENT
/* parent */
wifi_config_t parent = {
.sta = {
.ssid = CONFIG_MESH_PARENT_SSID,
.channel = CONFIG_MESH_CHANNEL,
},
};
ESP_ERROR_CHECK(esp_mesh_set_parent(&parent, MESH_ROOT, 1));
#endif
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/* mesh start */
ESP_ERROR_CHECK(esp_mesh_start());
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ESP_LOGI(MESH_TAG, "mesh starts successfully, heap:%d, %s\n", esp_get_free_heap_size(),
esp_mesh_is_root_fixed() ? "root fixed" : "root not fixed");
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}