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add mesh feature

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This commit is contained in:
qiyueixa 2018-02-27 18:22:20 +08:00
parent c842725be0
commit 2984cdbbe3
30 changed files with 2522 additions and 3 deletions
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4
components/esp32/component.mk
View file

@ -5,7 +5,7 @@
COMPONENT_SRCDIRS := . hwcrypto
LIBS ?=
ifndef CONFIG_NO_BLOBS
LIBS += core rtc net80211 pp wpa smartconfig coexist wps wpa2 espnow phy
LIBS += core rtc net80211 pp wpa smartconfig coexist wps wpa2 espnow phy mesh
endif
#Linker scripts used to link the final application.
@ -59,4 +59,4 @@ COMPONENT_EXTRA_CLEAN := esp32_out.ld
# disable stack protection in files which are involved in initialization of that feature
stack_check.o: CFLAGS := $(filter-out -fstack-protector%, $(CFLAGS))
cpu_start.o: CFLAGS := $(filter-out -fstack-protector%, $(CFLAGS))
cpu_start.o: CFLAGS := $(filter-out -fstack-protector%, $(CFLAGS))

71
components/esp32/esp_err_to_name.c
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@ -13,6 +13,9 @@
#if __has_include("esp_image_format.h")
#include "esp_image_format.h"
#endif
#if __has_include("esp_mesh.h")
#include "esp_mesh.h"
#endif
#if __has_include("esp_now.h")
#include "esp_now.h"
#endif
@ -288,6 +291,74 @@ static const esp_err_msg_t esp_err_msg_table[] = {
# endif
# ifdef ESP_ERR_ESPNOW_IF
ERR_TBL_IT(ESP_ERR_ESPNOW_IF), /* 12396 0x306c Interface error */
# endif
// components/esp32/include/esp_err.h
# ifdef ESP_ERR_MESH_BASE
ERR_TBL_IT(ESP_ERR_MESH_BASE), /* 16384 0x4000 Starting number of MESH error codes */
# endif
// components/esp32/include/esp_mesh.h
# ifdef ESP_ERR_MESH_WIFI_NOT_START
ERR_TBL_IT(ESP_ERR_MESH_WIFI_NOT_START), /* 16385 0x4001 */
# endif
# ifdef ESP_ERR_MESH_NOT_INIT
ERR_TBL_IT(ESP_ERR_MESH_NOT_INIT), /* 16386 0x4002 */
# endif
# ifdef ESP_ERR_MESH_NOT_CONFIG
ERR_TBL_IT(ESP_ERR_MESH_NOT_CONFIG), /* 16387 0x4003 */
# endif
# ifdef ESP_ERR_MESH_NOT_START
ERR_TBL_IT(ESP_ERR_MESH_NOT_START), /* 16388 0x4004 */
# endif
# ifdef ESP_ERR_MESH_NOT_SUPPORT
ERR_TBL_IT(ESP_ERR_MESH_NOT_SUPPORT), /* 16389 0x4005 */
# endif
# ifdef ESP_ERR_MESH_NOT_ALLOWED
ERR_TBL_IT(ESP_ERR_MESH_NOT_ALLOWED), /* 16390 0x4006 */
# endif
# ifdef ESP_ERR_MESH_NO_MEMORY
ERR_TBL_IT(ESP_ERR_MESH_NO_MEMORY), /* 16391 0x4007 */
# endif
# ifdef ESP_ERR_MESH_ARGUMENT
ERR_TBL_IT(ESP_ERR_MESH_ARGUMENT), /* 16392 0x4008 */
# endif
# ifdef ESP_ERR_MESH_EXCEED_MTU
ERR_TBL_IT(ESP_ERR_MESH_EXCEED_MTU), /* 16393 0x4009 */
# endif
# ifdef ESP_ERR_MESH_TIMEOUT
ERR_TBL_IT(ESP_ERR_MESH_TIMEOUT), /* 16394 0x400a */
# endif
# ifdef ESP_ERR_MESH_DISCONNECTED
ERR_TBL_IT(ESP_ERR_MESH_DISCONNECTED), /* 16395 0x400b */
# endif
# ifdef ESP_ERR_MESH_QUEUE_FAIL
ERR_TBL_IT(ESP_ERR_MESH_QUEUE_FAIL), /* 16396 0x400c */
# endif
# ifdef ESP_ERR_MESH_QUEUE_FULL
ERR_TBL_IT(ESP_ERR_MESH_QUEUE_FULL), /* 16397 0x400d */
# endif
# ifdef ESP_ERR_MESH_NO_PARENT_FOUND
ERR_TBL_IT(ESP_ERR_MESH_NO_PARENT_FOUND), /* 16398 0x400e */
# endif
# ifdef ESP_ERR_MESH_NO_ROUTE_FOUND
ERR_TBL_IT(ESP_ERR_MESH_NO_ROUTE_FOUND), /* 16399 0x400f */
# endif
# ifdef ESP_ERR_MESH_OPTION_NULL
ERR_TBL_IT(ESP_ERR_MESH_OPTION_NULL), /* 16400 0x4010 */
# endif
# ifdef ESP_ERR_MESH_OPTION_UNKNOWN
ERR_TBL_IT(ESP_ERR_MESH_OPTION_UNKNOWN), /* 16401 0x4011 */
# endif
# ifdef ESP_ERR_MESH_XON_NO_WINDOW
ERR_TBL_IT(ESP_ERR_MESH_XON_NO_WINDOW), /* 16402 0x4012 */
# endif
# ifdef ESP_ERR_MESH_INTERFACE
ERR_TBL_IT(ESP_ERR_MESH_INTERFACE), /* 16403 0x4013 */
# endif
# ifdef ESP_ERR_MESH_DISCARD_DUPLICATE
ERR_TBL_IT(ESP_ERR_MESH_DISCARD_DUPLICATE), /* 16404 0x4014 */
# endif
# ifdef ESP_ERR_MESH_DISCARD
ERR_TBL_IT(ESP_ERR_MESH_DISCARD), /* 16405 0x4015 */
# endif
// components/tcpip_adapter/include/tcpip_adapter.h
# ifdef ESP_ERR_TCPIP_ADAPTER_BASE

15
components/esp32/event_loop.c
View file

@ -21,6 +21,7 @@
#include "esp_event.h"
#include "esp_event_loop.h"
#include "esp_task.h"
#include "esp_mesh.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
@ -76,6 +77,20 @@ esp_err_t esp_event_send(system_event_t *event)
ESP_LOGE(TAG, "Event loop not initialized via esp_event_loop_init, but esp_event_send called");
return ESP_ERR_INVALID_STATE;
}
if (event->event_id == SYSTEM_EVENT_STA_GOT_IP || event->event_id == SYSTEM_EVENT_STA_LOST_IP) {
if (g_mesh_event_cb) {
mesh_event_t mevent;
if (event->event_id == SYSTEM_EVENT_STA_GOT_IP) {
mevent.id = MESH_EVENT_ROOT_GOT_IP;
memcpy(&mevent.info.got_ip, &event->event_info.got_ip, sizeof(system_event_sta_got_ip_t));
} else {
mevent.id = MESH_EVENT_ROOT_LOST_IP;
}
g_mesh_event_cb(mevent);
}
}
portBASE_TYPE ret = xQueueSendToBack(s_event_queue, event, 0);
if (ret != pdPASS) {
if (event) {

4
components/esp32/fast_crypto_ops.c
View file

@ -59,3 +59,7 @@ const wpa2_crypto_funcs_t g_wifi_default_wpa2_crypto_funcs = {
.sha256_vector = (esp_sha256_vector_t)fast_sha256_vector
};
const mesh_crypto_funcs_t g_wifi_default_mesh_crypto_funcs = {
.aes_128_encrypt = (esp_aes_128_encrypt_t)fast_aes_128_cbc_encrypt,
.aes_128_decrypt = (esp_aes_128_decrypt_t)fast_aes_128_cbc_decrypt,
};

1
components/esp32/include/esp_err.h
View file

@ -41,6 +41,7 @@ typedef int32_t esp_err_t;
#define ESP_ERR_INVALID_MAC 0x10B
#define ESP_ERR_WIFI_BASE 0x3000 /*!< Starting number of WiFi error codes */
#define ESP_ERR_MESH_BASE 0x4000 /*!< Starting number of MESH error codes */
/**
* @brief Returns string for esp_err_t error codes

1201
components/esp32/include/esp_mesh.h Normal file
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162
components/esp32/include/esp_mesh_internal.h Normal file
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@ -0,0 +1,162 @@
// Copyright 2017-2018 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.
#ifndef __ESP_MESH_INTERNAL_H__
#define __ESP_MESH_INTERNAL_H__
#include "esp_err.h"
#include "esp_wifi.h"
#include "esp_wifi_types.h"
#include "esp_wifi_internal.h"
#include "esp_wifi_crypto_types.h"
#ifdef __cplusplus
extern "C" {
#endif
/*******************************************************
* Constants
*******************************************************/
/*******************************************************
* Structures
*******************************************************/
typedef struct {
int scan; /**< minimum scan times before being a root, default:10 */
int vote; /**< max vote times in self-healing, default:10000 */
int fail; /**< parent selection fail times, if the scan times reach this value,
will disconnect with associated children and join self-healing. default:60 */
int monitor_ie; /**< acceptable times of parent ie change before update self ie, default:3 */
} mesh_attempts_t;
typedef struct {
int duration_ms; /* parent weak RSSI monitor duration, if the RSSI continues to be weak during this duration_ms,
will switch to a better parent */
int cnx_rssi; /* RSSI threshold for keeping a good connection with parent */
int select_rssi; /* RSSI threshold for parent selection, should be a value greater than switch_rssi */
int switch_rssi; /* RSSI threshold for action to reselect a better parent */
int backoff_rssi; /* RSSI threshold for connecting to the root */
} mesh_switch_parent_t;
/*******************************************************
* Function Definitions
*******************************************************/
/**
* @brief set mesh softAP beacon interval
*
* @param interval beacon interval(ms) (100ms ~ 60000ms)
*
* @return
* - ESP_OK
* - ESP_FAIL
* - ESP_ERR_WIFI_ARG
*/
esp_err_t esp_mesh_set_beacon_interval(int interval_ms);
/**
* @brief get mesh softAP beacon interval
*
* @param interval beacon interval(ms)
*
* @return
* - ESP_OK
*/
esp_err_t esp_mesh_get_beacon_interval(int *interval_ms);
/**
* @brief set attempts for mesh self-organized networking
*
* @param attempts
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_set_attempts(mesh_attempts_t *attempts);
/**
* @brief get attempts for mesh self-organized networking
*
* @param attempts
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_get_attempts(mesh_attempts_t *attempts);
/**
* @brief set parameters for parent switch
*
* @param paras parameters for parent switch
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_set_switch_parent_paras(mesh_switch_parent_t *paras);
/**
* @brief get parameters for parent switch
*
* @param paras parameters for parent switch
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_get_switch_parent_paras(mesh_switch_parent_t *paras);
/**
* @brief print the number of txQ waiting
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_print_txQ_waiting(void);
/**
* @brief print the number of rxQ waiting
*
* @return
* - ESP_OK
* - ESP_FAIL
*/
esp_err_t esp_mesh_print_rxQ_waiting(void);
/**
* @brief set passive scan time
*
* @param interval_ms passive scan time(ms)
*
* @return
* - ESP_OK
* - ESP_FAIL
* - ESP_ERR_ARGUMENT
*/
esp_err_t esp_mesh_set_passive_scan_time(int time_ms);
/**
* @brief get passive scan time
*
* @return interval_ms passive scan time(ms)
*/
int esp_mesh_get_passive_scan_time(void);
#ifdef __cplusplus
}
#endif
#endif /* __ESP_MESH_INTERNAL_H__ */

10
components/esp32/include/esp_wifi_crypto_types.h
View file

@ -300,6 +300,16 @@ typedef struct {
esp_sha256_vector_t sha256_vector; /**< function used to do X.509v3 certificate parsing and processing */
} wpa2_crypto_funcs_t;
/**
* @brief The crypto callback function structure used in mesh vendor IE encryption. The
* structure can be set as software crypto or the crypto optimized by ESP32
* hardware.
*/
typedef struct{
esp_aes_128_encrypt_t aes_128_encrypt; /**< function used in mesh vendor IE encryption */
esp_aes_128_decrypt_t aes_128_decrypt; /**< function used in mesh vendor IE decryption */
} mesh_crypto_funcs_t;
#ifdef __cplusplus
}
#endif

2
components/esp32/lib

@ -1 +1 @@
Subproject commit 152e29aa93a3d3f95fd6ed53a924a92c98fcc13c
Subproject commit 6657b2f40e498667fde7d31cdbc17b8ef581f93c

4
components/esp32/wifi_init.c
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@ -18,6 +18,10 @@
#include "esp_wifi_internal.h"
#include "esp_pm.h"
#include "soc/rtc.h"
#include "esp_mesh.h"
/* mesh event callback handler */
mesh_event_cb_t g_mesh_event_cb = NULL;
#ifdef CONFIG_PM_ENABLE
static esp_pm_lock_handle_t s_wifi_modem_sleep_lock;

2
docs/Doxyfile
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@ -28,6 +28,8 @@ INPUT = \
../../components/esp32/include/esp_wifi_types.h \
../../components/esp32/include/esp_smartconfig.h \
../../components/esp32/include/esp_now.h \
## Mesh - API Reference
../../components/esp32/include/esp_mesh.h \
## Bluetooth - API Reference
## Controller && VHCI
../../components/bt/include/bt.h \

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1
docs/en/api-guides/index.rst
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@ -21,4 +21,5 @@ API Guides
Console Component <console>
ROM debug console <romconsole>
WiFi Driver <wifi>
Mesh Stack <mesh>
External SPI-connected RAM <external-ram>

281
docs/en/api-guides/mesh.rst Normal file
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@ -0,0 +1,281 @@
ESP-MESH
========
Overview
--------
ESP-MESH is a "multi-hop" network, meaning that two or more wireless hops (intermediate connections of two Internet devices) are needed for conveying information from a source to a destination. Mesh networking (or mesh routing) is a type of network topology in which a device (node) transmits its own data, while serving as a relay for other nodes at the same time. The prerequisite for successful wireless mesh routing is that all mesh nodes need to be interconnected on the physical layer first. The mesh routing algorithm, then, chooses the transmission path among these physical-layer links. As a highly reliable, widely-covered Wireless Local-Area Network (WLAN) network, the ESP-MESH is ideal for wireless solutions covering a large open area (both outdoors and indoors).
ESP-MESH network is different from traditional wireless networks. The traditional wireless access technology implements a point-to-point or multipoint topology. There is generally one central node in such a topology, for example, a base station in a mobile communication system or an access point (AP) in an 802.11 WLAN. The central node and each wireless terminal are connected through single-hop wireless routing which controls each wireless terminal's access to the wireless network. Besides, the central node is connected to the backbone network through a wired link. In comparison, the ESP-MESH adopts a tree topology, with a root node, intermediate nodes and leaf nodes, making the network more expandable and fault-tolerant. Any mesh device on the network can compete to be the root node. Should the root node break down, the network will automatically select a new root node. This effectively decreases the tree topology’s dependence on a single node and allows every node to participate in the relay of information.
.. figure:: ../../_static/mesh_network_architecture.png
:align: center
:alt: Mesh Network Architecture
ESP-MESH Network Architecture
Introduction
------------
ESP-MESH defines a network that organizes and heals itself, enabling faster networking and better control.
There are three types of nodes in a mesh network, in terms of their function within the mesh network: root node, intermediate node and leaf node.
- Root node: this is the top node in the mesh network, which serves as the only interface between the mesh network and an external IP network. It functions as a gateway that relays packets outside the mesh network.
- Intermediate node: a mesh node other than the root node and leaf nodes in a mesh network. An intermediate node can receive, send and forward the packets coming from its parent (immediately preceding) node, as well as its child (immediately following) nodes.
- Leaf node: this is a mesh node that can only receive or send packets, but cannot forward packets.
Each node that forwards data forms a parent/child node relationship with other nodes according to their position in the mesh network. The root node, through which the mesh network can communicate with an external IP network, is a node directly connected to the router and can transmit data between its child nodes and the router. The number of access devices and the bandwidth of the router directly affect the throughput of the root-node device, when accessing the external IP network.
.. figure:: ../../_static/mesh_network_topology.png
:align: center
:alt: Mesh Network Topology
ESP-MESH Network Topology and Data Stream
As the above figure shows, node C and node D are intermediate nodes, while also being child nodes to the root node. Leaf E is the child node of node D. Leaf nodes A, B, and E have no child nodes. ESP-MESH is based on data link layer packet-forwarding, and no TCP/IP layer is needed in the mesh system except for the root node. See the figure “ESP-MESH Software Stack” for reference.
Function Description
--------------------
1. Mesh Networking
^^^^^^^^^^^^^^^^^^^^^
**(1) Mesh Configuration**
A router is mandatory during the ESP-MESH networking. Users need to configure the Service Set Identification (SSID), password and channel of the router for each node. If the router is hidden, users will need to configure the Basic Service Set Identification (BSSID) for the nodes.（For mesh configuration solutions, please refer to the link to Mesh IoT solutions. The link will be released soon.）
The information needed for mesh networking is carried by the Vendor Information Element (VIE) in beacon frame, which includes the node type, the layer of the node in the network, the maximum number of layers allowed in the network, the number of child nodes, the maximum number of nodes allowed to be connected to a single node, and more.
**(2) Root Node Election**
If there is no root node in the network, all the mesh devices will broadcast the real-time signal strength (RSSI) with the router. Each device networking information, including the signal strength with the router, is transmitted to the entire mesh network, so that all mesh devices can use that infromation to choose the one with the strongest signal as the root node.
POR, all devices are scanned separately. Each device selects the device with the greatest real-time signal strength, compared to the signal received by other devices from the router as well as to the strength of the router itself. The selection is, then, broadcast as a root-node candidate.
Subsequently, each mesh device scans the mesh network for a second time, and selects the device with the greatest real-time signal strength as root-node candidate. The selection is broadcast again. This process is repeated until only one root-node candidate remains in the end.
ESP-MESH also employs methods to accelerate the convergence of the root node election.
**(3) Parent Node Selection**
ESP-MESH provides a method for selecting the strongest parent node in a mesh network. According to this method, a node obtains information about other nodes from received VIE messages, and generates a set of parent nodes. If the parent set comprises at least two nodes, the one with the highest performance parameter is selected as the preferred parent. According to this method, a preferred parent node is selected because of the node type and the performance parameter of each node in the parent set. This method ensures that the preferred parent is the optimal one, thus reducing packet loss rate which, in turn, improves network performance.
2. Routing Generation and Maintenance
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3. Network Management
^^^^^^^^^^^^^^^^^^^^^
+-----------------------+------------------------------------------------------------------------------------------+
| Function | Description |
+=======================+==========================================================================================+
|Self-healing |Self-healing allows such routing-based network to operate when a node breaks down or when |
| |a connection becomes unreliable. |
| | |
| |If a root node breaks down, the nodes directly connected with it on the second layer will |
| |detect the root-node failure quickly and initialize a new round of root node election. If |
| |the root node and all the nodes on the second layer break down, the nodes on the third |
| |layer will initialize root node election and a new root node will be elected eventually. |
| | |
| |In the event of a failure of the intermediate nodes and the leaf nodes, failed nodes will |
| |reconnect their parent nodes respectively for a predefined number of times and will, then,|
| |reselect a new parent node to join the mesh network. |
+-----------------------+------------------------------------------------------------------------------------------+
|Root node switch |Users can call :cpp:func:`esp_mesh_waive_root` to switch root nodes in the network. |
| |The new root node can be specified by the users or be automatically elected by the |
| |network. |
+-----------------------+------------------------------------------------------------------------------------------+
|Root conflicts handling|Only the conflicts of root nodes connecting to the same router are handled. Conflicts of |
| |root nodes having the same router SSID, but different router BSSID, are not handled. |
+-----------------------+------------------------------------------------------------------------------------------+
|Parent node switch |Changing the physical position of a node in the mesh network will lead to declined signal |
| |strength of the parent node and problematic communication. Upon detecting such a problem, |
| |this function will automatically choose a better parent node for this node. |
| | |
| |When the position of a mobile node changes constantly, communication with the parent node |
| |deteriorates or even drops. After such a situation is detected, the parent of the mobile |
| |node is automatically reselected, so that communication with the network is maintained. |
+-----------------------+------------------------------------------------------------------------------------------+
|Loopback avoidance, |During the parent selection, the nodes covered in its own routing table are excluded, |
|detection and handling |so that the occurrence of a loopback is avoided. |
| | |
| |The path verification mechanism and the energy transfer mechanism are used for detecting |
| |the loopback. |
| | |
| |When a loopback is detected, the parent node will disconnect with the child node and |
| |inform it about the occurrence of the loop with a predefined reason code. |
+-----------------------+------------------------------------------------------------------------------------------+
|Channel switch |TO-DO |
+-----------------------+------------------------------------------------------------------------------------------+
|Isolated node avoidance|TO-DO |
|and handling | |
+-----------------------+------------------------------------------------------------------------------------------+
4. Data Transmission
^^^^^^^^^^^^^^^^^^^^
+-----------------------+------------------------------------------------------------------------------------------+
| Function | Description |
+=======================+==========================================================================================+
|Reliability |ESP-MESH provides P2P(point-to-point) retransmission on mesh layer. |
+-----------------------+------------------------------------------------------------------------------------------+
|Upstream flow control |When a node in the mesh network is chosen as a parent node, the upstream data of each of |
| |its child nodes is allocated a receiving window, the size of which can be dynamically |
| |adjusted. The child node sends a window request to the parent node before sending data |
| |packets. The parent node compares the request’s sequence number, which corresponds to the |
| |child node's pending packet in the window request, with the sequence number of the parent |
| |node's most recently received packet from the child node. The size of the receiving window|
| |is calculated and returned to the child node. The child node, then, sends the packet, |
| |according to the reply’s receiving-window size. |
| | |
| |In addition, considering that there is only one exit from the entire mesh network, which |
| |is the root node, it is only the root node which can access external IP networks. If the |
| |other nodes are uninformed of the connection status between the root node and the external|
| |network, and keep sending packets to the root node, there is a possibility of packet loss |
| |or unnecessary packet-sending. ESP-MESH provides a method of flow control on the upstream |
| |data, which stabilizes the throughput of the mesh network’s exit by monitoring the |
| |connection status between the root node and the external network, thus avoiding packet |
| |loss or unnecessary packet-sending. |
+-----------------------+------------------------------------------------------------------------------------------+
|Supporting multicast |Only specified devices can receive multicast packets. Thus, users need to specify these |
|packets |devices by configuring the relevant input parameters for the API :cpp:func:`esp_mesh_send`|
+-----------------------+------------------------------------------------------------------------------------------+
|Supporting broadcast |ESP-MESH provides a method to avoid a waste of bandwidth. |
|packets | |
| |1. When the broadcast packet transmitted by the intermediate node has been received from |
| |its parent node, the intermediate node sends itself a copy of the broadcast packet, while |
| |sending the original broadcast packet to its child nodes. |
| | |
| |2. When a broadcast packet transmitted by an intermediate node has been generated by |
| |itself, the broadcast packet is sent both to its parent and child nodes. |
| | |
| |3. When a broadcast packet transmitted by an intermediate node has been received from its |
| |child node, the broadcast packet is delivered to the intermediate node itself and its |
| |remaining child nodes, while a copy of the broadcast packet is transmitted to the |
| |intermediate’s parent node. |
| | |
| |4. When a leaf node generates a broadcast packet, the leaf node sends the broadcast packet|
| |to its parent node directly. |
| | |
| |5. When the broadcast packet transmitted by the root node has been generated by the root |
| |node itself, the broadcast packet is delivered to the root’s child node. |
| | |
| |6. When the broadcast packet transmitted by the root node has been received from its child|
| |node, the broadcast packet is sent to the remaining child nodes of the root node. |
| | |
| |7. When a node receives a broadcast packet initially sent from the address of the node |
| |itself, it discards this broadcast packet. |
| | |
| |8. When a node receives a broadcast packet from its parent node, which has been originally|
| |sent from its own child node, it discards this broadcast packet. |
+-----------------------+------------------------------------------------------------------------------------------+
|Group control |Firsty users must specify a group ID for the device via :cpp:func:`esp_mesh_set_group_id`.|
| |Then when one packet is sent target to this group, only devices in this group can receive |
| |it. |
+-----------------------+------------------------------------------------------------------------------------------+
5. Performance
^^^^^^^^^^^^^^
+--------------------+------------------------------------------------------------------------------------------+
| Function | Description |
+====================+==========================================================================================+
|Networking time |Less than 15 seconds. The time is from tests executed on a network with 50 devices. |
+--------------------+------------------------------------------------------------------------------------------+
|Healing time |If a root node breaks down, less than 10 seconds is taken for the network to detect that |
| |and generate a new root. If a parent node breaks down, less than 5 seconds is taken for |
| |its child nodes to detect that and reselect a new parent node. |
| |The time is also from tests executed on a network with 50 devices. |
+--------------------+------------------------------------------------------------------------------------------+
|Layer forward delay |30ms. The delay is from tests executed on a network with 100 devices and all devices did |
| |not enable AMPDU. |
+--------------------+------------------------------------------------------------------------------------------+
|Packet loss rate |max: %0.32 in data transmitted from layer 2 to layer 4; min: %0.00 |
| |The results are also from tests executed on a network with 100 devices. |
+--------------------+------------------------------------------------------------------------------------------+
|Network capacity |The network capacity is terminated by the maximum number of devices allowed to be |
| |connected to the softAP, and by the maximum number of network layers allowed in the |
| |network. |
+--------------------+------------------------------------------------------------------------------------------+
**Note:** All device are configured 6 connections and 6 layers during the above mentioned tests.
6. Security and Encryption
^^^^^^^^^^^^^^^^^^^^^^^^^^
**(1) Uses WPA2-PSK**
**(2) AES Encryption for Mesh VIE**
7. Power Management (TO-DO)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
**(1) Network Sleep**
**(2) Standalone Station**
8. User Intervention Network (TO-DO)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+-----------------------+---------------------------------------------------------------------------------------+
| Function | Description |
+=======================+=======================================================================================+
|Specifying the node |The user designates a node in the network as the root node, intermediate node or leaf |
|type |node. |
+-----------------------+---------------------------------------------------------------------------------------+
|Specifying the parent |The user designates a parent node for a certain node. |
|type | |
+-----------------------+---------------------------------------------------------------------------------------+
|Specifying the layer |The user designates the layer in which the above-mentioned node is to be located. |
+-----------------------+---------------------------------------------------------------------------------------+
How to Write a Mesh Application
-------------------------------
**ESP-MESH API Error Code**
We suggest that users regularly check the error code and add relevant handlers accordingly.
ESP-MESH Programming Model
--------------------------
**Software Stack is demonstrated below:**
.. figure:: ../../_static/mesh_software_stack.png
:align: center
:alt: ESP-MESH Software Stack
ESP-MESH Software Stack
**System Events delivery is demonstrated below:**
.. figure:: ../../_static/mesh_events_delivery.png
:align: center
:alt: System Events Delivery
ESP-MESH System Events Delivery
ESP-MESH events define almost all system events for any application tasks needed. The events include the Wi-Fi connection status of the station interface, the connection status of child nodes on the softAP interface, and the like. Firstly, application tasks need to register a mesh event callback handler via the API :cpp:func:`esp_mesh_set_config`. This handler is used for receiving events posted from the mesh stack and the LwIP stack. Application tasks can add relevant handlers to each event.
**Examples:**
(1) Application tasks can use Wi-Fi station connect statuses to determine when to send data to a parent node, to a root node or to external IP network.
(2) Application tasks can use Wi-Fi softAP statuses to determine when to send data to child nodes.
Application tasks can access the mesh stack directly without having to go through the LwIP stack. The LwIP stack is not necessery for non-root nodes.
:cpp:func:`esp_mesh_send` and :cpp:func:`esp_mesh_recv` are used in the application tasks to send and receive messages over the mesh network.
**Notes:**
Since current ESP-IDF does not support system initializing without calling :cpp:func:`tcpip_adapter_init`, application tasks still need to perform the LwIP initialization and do remember firstly
1. stoping the DHCP server service on the softAP interface
2. stoping the DHCP client service on the station interface.
Code Example:
:cpp:func:`tcpip_adapter_init`;
:cpp:func:`tcpip_adapter_dhcps_stop`;
:cpp:func:`tcpip_adapter_dhcpc_stop`;
The root node is connected with a router. Thus, in the application mesh event handler, once a node becomes the root, the DHCP client service must be started immediately to obtain IP address unless static IP settings is used.

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@ -6,6 +6,7 @@ API Reference
:maxdepth: 2
Wi-Fi <wifi/index>
Mesh <mesh/index>
Bluetooth <bluetooth/index>
Ethernet <ethernet/index>
Peripherals <peripherals/index>

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Mesh
=====
Application Examples
--------------------
See :example:`mesh` directory of ESP-IDF examples that contains the following applications.
API Reference
--------------
.. include:: /_build/inc/esp_mesh.inc

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Mesh API
*********
.. toctree::
:maxdepth: 1
ESP Mesh <esp_mesh>
Example code for this API section is provided in :example:`mesh` directory of ESP-IDF examples.

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.. include:: ../../en/api-guides/mesh.rst

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.. include:: ../../../en/api-reference/mesh/esp_mesh.rst

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.. include:: ../../../en/api-reference/mesh/index.rst

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#
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
# project subdirectory.
#
PROJECT_NAME := internal_transceiver
include $(IDF_PATH)/make/project.mk

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# Mesh Internal Transceiver Example
This example demonstrates how to use the mesh APIs to set up a mesh network, send and receive messages over the mesh network and etc.
Features Demonstrated
- mesh initialization
- mesh configuration
- mesh start
- mesh event handler
- root send and receive
- other nodes receive
Run `make menuconfig` to configure the mesh network channel, router SSID, router password and mesh softAP settings.
When the mesh network is established and if you happen to run this example on ESP-WROVER-KIT boards, the RGB light indicator will show you on which layer devices are.
The pink reprents root; the yellow reprents layer 2; the red reprents layer 3; the blue reprents layer 4; the green reprents layer 5; the white reprents layer greater than 5.
Root continuously sends an On / Off control message to all devices in its routing table. Devices including root itself receive this message and do the On / Off.

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menu "Example Configuration"
config MESH_CHANNEL
int "channel"
range 1 14
default 1
help
mesh network channel.
config MESH_ROUTER_SSID
string "Router SSID"
default "ROUTER_SSID"
help
Router SSID.
config MESH_ROUTER_PASSWD
string "Router password"
default "ROUTER_PASSWD"
help
Router password.
choice
bool "Mesh AP Authentication Mode"
default MAP_AUTH_MODE_OPEN
help
Authentication mode.
config WIFI_AUTH_OPEN
bool "WIFI_AUTH_OPEN"
config WIFI_AUTH_WPA_PSK
bool "WIFI_AUTH_WPA_PSK"
config WIFI_AUTH_WPA2_PSK
bool "WIFI_AUTH_WPA2_PSK"
config WIFI_AUTH_WPA_WPA2_PSK
bool "WIFI_AUTH_WPA_WPA2_PSK"
endchoice
config MESH_AP_AUTHMODE
int
default 0 if WIFI_AUTH_OPEN
default 2 if WIFI_AUTH_WPA_PSK
default 3 if WIFI_AUTH_WPA2_PSK
default 4 if WIFI_AUTH_WPA_WPA2_PSK
help
Mesh AP authentication mode.
config MESH_AP_PASSWD
string "Mesh AP Password"
default "MAP_PASSWD"
help
Mesh AP password.
config MESH_AP_CONNECTIONS
int "Mesh AP Connections"
range 1 10
default 6
help
The number of stations allowed to connect in.
config MESH_MAX_LAYER
int "Mesh Max Layer"
range 1 15
default 6
help
Max layer allowed in mesh network.
config MESH_ROUTE_TABLE_SIZE
int "Mesh Routing Table Size"
range 1 300
default 50
help
The number of devices over the network(max: 300).
endmenu

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#
# "main" pseudo-component makefile.
#
# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)

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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.
*/
#ifndef __MESH_LIGHT_H__
#define __MESH_LIGHT_H__
#include "esp_err.h"
/*******************************************************
* Constants
*******************************************************/
#define MESH_LIGHT_RED (0xff)
#define MESH_LIGHT_GREEN (0xfe)
#define MESH_LIGHT_BLUE (0xfd)
#define MESH_LIGHT_YELLOW (0xfc)
#define MESH_LIGHT_PINK (0xfb)
#define MESH_LIGHT_INIT (0xfa)
#define MESH_LIGHT_WARNING (0xf9)
#define MESH_TOKEN_ID (0x0)
#define MESH_TOKEN_VALUE (0xbeef)
#define MESH_CONTROL_CMD (0x2)
/*******************************************************
* Type Definitions
*******************************************************/
/*******************************************************
* Structures
*******************************************************/
typedef struct {
uint8_t cmd;
bool on;
uint8_t token_id;
uint16_t token_value;
} mesh_light_ctl_t;
/*******************************************************
* Variables Declarations
*******************************************************/
/*******************************************************
* Function Definitions
*******************************************************/
esp_err_t mesh_light_init(void);
esp_err_t mesh_light_set(int color);
esp_err_t mesh_light_process(mesh_addr_t *from, uint8_t *buf, uint16_t len);
void mesh_connected_indicator(int layer);
void mesh_disconnected_indicator(void);
#endif /* __MESH_LIGHT_H__ */

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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_err.h"
#include "esp_mesh.h"
#include "mesh_light.h"
#include "driver/gpio.h"
#include "driver/ledc.h"
/*******************************************************
* Constants
*******************************************************/
/* RGB configuration on ESP-WROVER-KIT board */
#define LEDC_IO_0 (0)
#define LEDC_IO_1 (2)
#define LEDC_IO_2 (4)
#define LEDC_IO_3 (5)
/*******************************************************
* Variable Definitions
*******************************************************/
static bool bool_light_inited = false;
/*******************************************************
* Function Definitions
*******************************************************/
esp_err_t mesh_light_init(void)
{
if (bool_light_inited == true) {
return ESP_OK;
}
bool_light_inited = true;
ledc_timer_config_t ledc_timer = {
.bit_num = LEDC_TIMER_13_BIT, .freq_hz = 5000, .speed_mode =
LEDC_HIGH_SPEED_MODE, .timer_num = LEDC_TIMER_0
};
ledc_timer_config(&ledc_timer);
ledc_channel_config_t ledc_channel = { .channel = LEDC_CHANNEL_0, .duty =
100, .gpio_num = LEDC_IO_0, .intr_type = LEDC_INTR_FADE_END,
.speed_mode = LEDC_HIGH_SPEED_MODE, .timer_sel = LEDC_TIMER_0
};
ledc_channel_config(&ledc_channel);
ledc_channel.channel = LEDC_CHANNEL_1;
ledc_channel.gpio_num = LEDC_IO_1;
ledc_channel_config(&ledc_channel);
ledc_channel.channel = LEDC_CHANNEL_2;
ledc_channel.gpio_num = LEDC_IO_2;
ledc_channel_config(&ledc_channel);
ledc_channel.channel = LEDC_CHANNEL_3;
ledc_channel.gpio_num = LEDC_IO_3;
ledc_channel_config(&ledc_channel);
ledc_fade_func_install(0);
mesh_light_set(MESH_LIGHT_INIT);
return ESP_OK;
}
esp_err_t mesh_light_set(int color)
{
switch (color) {
case MESH_LIGHT_RED:
/* Red */
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 3000);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 0);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 0);
break;
case MESH_LIGHT_GREEN:
/* Green */
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 3000);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 0);
break;
case MESH_LIGHT_BLUE:
/* Blue */
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 0);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 3000);
break;
case MESH_LIGHT_YELLOW:
/* Yellow */
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 3000);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 3000);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 0);
break;
case MESH_LIGHT_PINK:
/* Pink */
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 3000);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 0);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 3000);
break;
case MESH_LIGHT_INIT:
/* can't say */
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 3000);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 3000);
break;
case MESH_LIGHT_WARNING:
/* warning */
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 3000);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 3000);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 3000);
break;
default:
/* off */
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 0);
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 0);
}
ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0);
ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1);
ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2);
return ESP_OK;
}
void mesh_connected_indicator(int layer)
{
switch (layer) {
case 1:
mesh_light_set(MESH_LIGHT_PINK);
break;
case 2:
mesh_light_set(MESH_LIGHT_YELLOW);
break;
case 3:
mesh_light_set(MESH_LIGHT_RED);
break;
case 4:
mesh_light_set(MESH_LIGHT_BLUE);
break;
case 5:
mesh_light_set(MESH_LIGHT_GREEN);
break;
case 6:
mesh_light_set(MESH_LIGHT_WARNING);
break;
default:
mesh_light_set(0);
}
}
void mesh_disconnected_indicator(void)
{
mesh_light_set(MESH_LIGHT_WARNING);
}
esp_err_t mesh_light_process(mesh_addr_t *from, uint8_t *buf, uint16_t len)
{
mesh_light_ctl_t *in = (mesh_light_ctl_t *) buf;
if (!from || !buf || len < sizeof(mesh_light_ctl_t)) {
return ESP_FAIL;
}
if (in->token_id != MESH_TOKEN_ID || in->token_value != MESH_TOKEN_VALUE) {
return ESP_FAIL;
}
if (in->cmd == MESH_CONTROL_CMD) {
if (in->on) {
mesh_connected_indicator(esp_mesh_get_layer());
} else {
mesh_light_set(0);
}
}
return ESP_OK;
}

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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 };
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)
} 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)
}
}
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]%s%s[rtableSize:%d]", mesh_layer,
is_mesh_connected ? "CONNECT" : "DISCONNECT",
esp_mesh_is_root() ? "<ROOT>" : "[NODE]",
esp_mesh_get_routing_table_size())
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)
}
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)
} 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)
}
}
vTaskDelay(1 * 1000 / portTICK_RATE_MS);
}
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)
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)
}
}
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)
switch (event.id) {
case MESH_EVENT_STARTED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_STARTED>")
break;
case MESH_EVENT_STOPPED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_STOPPED>")
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))
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))
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)
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)
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)
/* 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)
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))
}
#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)
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>" : "")
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))
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))
break;
case MESH_EVENT_ROOT_LOST_IP:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_LOST_IP>")
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))
break;
case MESH_EVENT_VOTE_STOPPED:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_VOTE_DONE>")
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))
break;
case MESH_EVENT_ROOT_SWITCH_ACK:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_ROOT_SWITCH_ACK>")
break;
case MESH_EVENT_TODS_STATE:
ESP_LOGI(MESH_TAG, "<MESH_EVENT_TODS_REACHABLE>state:%d",
event.info.toDS_state)
;
break;
default:
ESP_LOGI(MESH_TAG, "unknown")
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));
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));
/* mesh start */
ESP_ERROR_CHECK(esp_mesh_start());
ESP_LOGI(MESH_TAG, "mesh starts successfully, heap:%d\n", esp_get_free_heap_size())
}