OVMS3-idf/examples/bluetooth/blufi/main/blufi_example_main.c

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2018-01-15 11:47:23 +00:00
/*
This example code is in the Public Domain (or CC0 licensed, at your option.)
2018-01-15 11:47:23 +00:00
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.
*/
2018-02-13 08:03:48 +00:00
/****************************************************************************
* This is a demo for bluetooth config wifi connection to ap. You can config ESP32 to connect a softap
* or config ESP32 as a softap to be connected by other device. APP can be downloaded from github
* android source code: https://github.com/EspressifApp/EspBlufi
* iOS source code: https://github.com/EspressifApp/EspBlufiForiOS
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/event_groups.h"
#include "esp_system.h"
#include "esp_wifi.h"
#include "esp_event_loop.h"
#include "esp_log.h"
#include "nvs_flash.h"
#include "esp_bt.h"
#include "esp_blufi_api.h"
#include "esp_bt_defs.h"
#include "esp_gap_ble_api.h"
#include "esp_bt_main.h"
#include "esp_bt_device.h"
#include "blufi_example.h"
static void example_event_callback(esp_blufi_cb_event_t event, esp_blufi_cb_param_t *param);
#define BLUFI_DEVICE_NAME "BLUFI_DEVICE"
static uint8_t example_service_uuid128[32] = {
/* LSB <--------------------------------------------------------------------------------> MSB */
//first uuid, 16bit, [12],[13] is the value
0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00,
};
//static uint8_t test_manufacturer[TEST_MANUFACTURER_DATA_LEN] = {0x12, 0x23, 0x45, 0x56};
static esp_ble_adv_data_t example_adv_data = {
.set_scan_rsp = false,
.include_name = true,
.include_txpower = true,
.min_interval = 0x0006, //slave connection min interval, Time = min_interval * 1.25 msec
.max_interval = 0x0010, //slave connection max interval, Time = max_interval * 1.25 msec
.appearance = 0x00,
.manufacturer_len = 0,
.p_manufacturer_data = NULL,
.service_data_len = 0,
.p_service_data = NULL,
.service_uuid_len = 16,
.p_service_uuid = example_service_uuid128,
.flag = 0x6,
};
static esp_ble_adv_params_t example_adv_params = {
.adv_int_min = 0x100,
.adv_int_max = 0x100,
.adv_type = ADV_TYPE_IND,
.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
//.peer_addr =
//.peer_addr_type =
.channel_map = ADV_CHNL_ALL,
.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
};
#define WIFI_LIST_NUM 10
static wifi_config_t sta_config;
static wifi_config_t ap_config;
/* FreeRTOS event group to signal when we are connected & ready to make a request */
static EventGroupHandle_t wifi_event_group;
/* The event group allows multiple bits for each event,
but we only care about one event - are we connected
to the AP with an IP? */
const int CONNECTED_BIT = BIT0;
/* store the station info for send back to phone */
static bool gl_sta_connected = false;
static uint8_t gl_sta_bssid[6];
static uint8_t gl_sta_ssid[32];
static int gl_sta_ssid_len;
/* connect infor*/
static uint8_t server_if;
static uint16_t conn_id;
static esp_err_t example_net_event_handler(void *ctx, system_event_t *event)
{
wifi_mode_t mode;
switch (event->event_id) {
case SYSTEM_EVENT_STA_START:
esp_wifi_connect();
break;
case SYSTEM_EVENT_STA_GOT_IP: {
esp_blufi_extra_info_t info;
xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
esp_wifi_get_mode(&mode);
memset(&info, 0, sizeof(esp_blufi_extra_info_t));
memcpy(info.sta_bssid, gl_sta_bssid, 6);
info.sta_bssid_set = true;
info.sta_ssid = gl_sta_ssid;
info.sta_ssid_len = gl_sta_ssid_len;
esp_blufi_send_wifi_conn_report(mode, ESP_BLUFI_STA_CONN_SUCCESS, 0, &info);
break;
}
case SYSTEM_EVENT_STA_CONNECTED:
gl_sta_connected = true;
memcpy(gl_sta_bssid, event->event_info.connected.bssid, 6);
memcpy(gl_sta_ssid, event->event_info.connected.ssid, event->event_info.connected.ssid_len);
gl_sta_ssid_len = event->event_info.connected.ssid_len;
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
/* This is a workaround as ESP32 WiFi libs don't currently
auto-reassociate. */
gl_sta_connected = false;
memset(gl_sta_ssid, 0, 32);
memset(gl_sta_bssid, 0, 6);
gl_sta_ssid_len = 0;
esp_wifi_connect();
xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
break;
case SYSTEM_EVENT_AP_START:
esp_wifi_get_mode(&mode);
/* TODO: get config or information of softap, then set to report extra_info */
if (gl_sta_connected) {
esp_blufi_send_wifi_conn_report(mode, ESP_BLUFI_STA_CONN_SUCCESS, 0, NULL);
} else {
esp_blufi_send_wifi_conn_report(mode, ESP_BLUFI_STA_CONN_FAIL, 0, NULL);
}
break;
case SYSTEM_EVENT_SCAN_DONE: {
uint16_t apCount = 0;
esp_wifi_scan_get_ap_num(&apCount);
if (apCount == 0) {
BLUFI_INFO("Nothing AP found");
break;
}
wifi_ap_record_t *ap_list = (wifi_ap_record_t *)malloc(sizeof(wifi_ap_record_t) * apCount);
if (!ap_list) {
BLUFI_ERROR("malloc error, ap_list is NULL");
break;
}
ESP_ERROR_CHECK(esp_wifi_scan_get_ap_records(&apCount, ap_list));
esp_blufi_ap_record_t * blufi_ap_list = (esp_blufi_ap_record_t *)malloc(apCount * sizeof(esp_blufi_ap_record_t));
if (!blufi_ap_list) {
if (ap_list) {
free(ap_list);
}
BLUFI_ERROR("malloc error, blufi_ap_list is NULL");
break;
}
for (int i = 0; i < apCount; ++i)
{
blufi_ap_list[i].rssi = ap_list[i].rssi;
memcpy(blufi_ap_list[i].ssid, ap_list[i].ssid, sizeof(ap_list[i].ssid));
}
esp_blufi_send_wifi_list(apCount, blufi_ap_list);
esp_wifi_scan_stop();
free(ap_list);
free(blufi_ap_list);
break;
}
default:
break;
}
return ESP_OK;
}
static void initialise_wifi(void)
{
tcpip_adapter_init();
wifi_event_group = xEventGroupCreate();
ESP_ERROR_CHECK( esp_event_loop_init(example_net_event_handler, NULL) );
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
ESP_ERROR_CHECK( esp_wifi_set_storage(WIFI_STORAGE_RAM) );
ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
ESP_ERROR_CHECK( esp_wifi_start() );
}
static esp_blufi_callbacks_t example_callbacks = {
.event_cb = example_event_callback,
.negotiate_data_handler = blufi_dh_negotiate_data_handler,
.encrypt_func = blufi_aes_encrypt,
.decrypt_func = blufi_aes_decrypt,
.checksum_func = blufi_crc_checksum,
};
static void example_event_callback(esp_blufi_cb_event_t event, esp_blufi_cb_param_t *param)
{
/* actually, should post to blufi_task handle the procedure,
* now, as a example, we do it more simply */
switch (event) {
case ESP_BLUFI_EVENT_INIT_FINISH:
BLUFI_INFO("BLUFI init finish\n");
esp_ble_gap_set_device_name(BLUFI_DEVICE_NAME);
esp_ble_gap_config_adv_data(&example_adv_data);
break;
case ESP_BLUFI_EVENT_DEINIT_FINISH:
BLUFI_INFO("BLUFI deinit finish\n");
break;
case ESP_BLUFI_EVENT_BLE_CONNECT:
BLUFI_INFO("BLUFI ble connect\n");
server_if = param->connect.server_if;
conn_id = param->connect.conn_id;
esp_ble_gap_stop_advertising();
blufi_security_init();
break;
case ESP_BLUFI_EVENT_BLE_DISCONNECT:
BLUFI_INFO("BLUFI ble disconnect\n");
blufi_security_deinit();
esp_ble_gap_start_advertising(&example_adv_params);
break;
case ESP_BLUFI_EVENT_SET_WIFI_OPMODE:
BLUFI_INFO("BLUFI Set WIFI opmode %d\n", param->wifi_mode.op_mode);
ESP_ERROR_CHECK( esp_wifi_set_mode(param->wifi_mode.op_mode) );
break;
case ESP_BLUFI_EVENT_REQ_CONNECT_TO_AP:
BLUFI_INFO("BLUFI requset wifi connect to AP\n");
/* there is no wifi callback when the device has already connected to this wifi
so disconnect wifi before connection.
*/
esp_wifi_disconnect();
esp_wifi_connect();
break;
case ESP_BLUFI_EVENT_REQ_DISCONNECT_FROM_AP:
BLUFI_INFO("BLUFI requset wifi disconnect from AP\n");
esp_wifi_disconnect();
break;
case ESP_BLUFI_EVENT_REPORT_ERROR:
BLUFI_ERROR("BLUFI report error, error code %d\n", param->report_error.state);
esp_blufi_send_error_info(param->report_error.state);
break;
case ESP_BLUFI_EVENT_GET_WIFI_STATUS: {
wifi_mode_t mode;
esp_blufi_extra_info_t info;
esp_wifi_get_mode(&mode);
if (gl_sta_connected ) {
memset(&info, 0, sizeof(esp_blufi_extra_info_t));
memcpy(info.sta_bssid, gl_sta_bssid, 6);
info.sta_bssid_set = true;
info.sta_ssid = gl_sta_ssid;
info.sta_ssid_len = gl_sta_ssid_len;
esp_blufi_send_wifi_conn_report(mode, ESP_BLUFI_STA_CONN_SUCCESS, 0, &info);
} else {
esp_blufi_send_wifi_conn_report(mode, ESP_BLUFI_STA_CONN_FAIL, 0, NULL);
}
BLUFI_INFO("BLUFI get wifi status from AP\n");
break;
}
case ESP_BLUFI_EVENT_RECV_SLAVE_DISCONNECT_BLE:
BLUFI_INFO("blufi close a gatt connection");
esp_blufi_close(server_if, conn_id);
break;
case ESP_BLUFI_EVENT_DEAUTHENTICATE_STA:
/* TODO */
break;
case ESP_BLUFI_EVENT_RECV_STA_BSSID:
memcpy(sta_config.sta.bssid, param->sta_bssid.bssid, 6);
sta_config.sta.bssid_set = 1;
esp_wifi_set_config(WIFI_IF_STA, &sta_config);
BLUFI_INFO("Recv STA BSSID %s\n", sta_config.sta.ssid);
break;
case ESP_BLUFI_EVENT_RECV_STA_SSID:
strncpy((char *)sta_config.sta.ssid, (char *)param->sta_ssid.ssid, param->sta_ssid.ssid_len);
sta_config.sta.ssid[param->sta_ssid.ssid_len] = '\0';
esp_wifi_set_config(WIFI_IF_STA, &sta_config);
BLUFI_INFO("Recv STA SSID %s\n", sta_config.sta.ssid);
break;
case ESP_BLUFI_EVENT_RECV_STA_PASSWD:
strncpy((char *)sta_config.sta.password, (char *)param->sta_passwd.passwd, param->sta_passwd.passwd_len);
sta_config.sta.password[param->sta_passwd.passwd_len] = '\0';
esp_wifi_set_config(WIFI_IF_STA, &sta_config);
BLUFI_INFO("Recv STA PASSWORD %s\n", sta_config.sta.password);
break;
case ESP_BLUFI_EVENT_RECV_SOFTAP_SSID:
strncpy((char *)ap_config.ap.ssid, (char *)param->softap_ssid.ssid, param->softap_ssid.ssid_len);
ap_config.ap.ssid[param->softap_ssid.ssid_len] = '\0';
ap_config.ap.ssid_len = param->softap_ssid.ssid_len;
esp_wifi_set_config(WIFI_IF_AP, &ap_config);
BLUFI_INFO("Recv SOFTAP SSID %s, ssid len %d\n", ap_config.ap.ssid, ap_config.ap.ssid_len);
break;
case ESP_BLUFI_EVENT_RECV_SOFTAP_PASSWD:
strncpy((char *)ap_config.ap.password, (char *)param->softap_passwd.passwd, param->softap_passwd.passwd_len);
ap_config.ap.password[param->softap_passwd.passwd_len] = '\0';
esp_wifi_set_config(WIFI_IF_AP, &ap_config);
BLUFI_INFO("Recv SOFTAP PASSWORD %s len = %d\n", ap_config.ap.password, param->softap_passwd.passwd_len);
break;
case ESP_BLUFI_EVENT_RECV_SOFTAP_MAX_CONN_NUM:
if (param->softap_max_conn_num.max_conn_num > 4) {
return;
}
ap_config.ap.max_connection = param->softap_max_conn_num.max_conn_num;
esp_wifi_set_config(WIFI_IF_AP, &ap_config);
BLUFI_INFO("Recv SOFTAP MAX CONN NUM %d\n", ap_config.ap.max_connection);
break;
case ESP_BLUFI_EVENT_RECV_SOFTAP_AUTH_MODE:
if (param->softap_auth_mode.auth_mode >= WIFI_AUTH_MAX) {
return;
}
ap_config.ap.authmode = param->softap_auth_mode.auth_mode;
esp_wifi_set_config(WIFI_IF_AP, &ap_config);
BLUFI_INFO("Recv SOFTAP AUTH MODE %d\n", ap_config.ap.authmode);
break;
case ESP_BLUFI_EVENT_RECV_SOFTAP_CHANNEL:
if (param->softap_channel.channel > 13) {
return;
}
ap_config.ap.channel = param->softap_channel.channel;
esp_wifi_set_config(WIFI_IF_AP, &ap_config);
BLUFI_INFO("Recv SOFTAP CHANNEL %d\n", ap_config.ap.channel);
break;
case ESP_BLUFI_EVENT_GET_WIFI_LIST:{
wifi_scan_config_t scanConf = {
.ssid = NULL,
.bssid = NULL,
.channel = 0,
.show_hidden = false
};
ESP_ERROR_CHECK(esp_wifi_scan_start(&scanConf, true));
break;
}
case ESP_BLUFI_EVENT_RECV_CUSTOM_DATA:
BLUFI_INFO("Recv Custom Data %d\n", param->custom_data.data_len);
esp_log_buffer_hex("Custom Data", param->custom_data.data, param->custom_data.data_len);
break;
case ESP_BLUFI_EVENT_RECV_USERNAME:
/* Not handle currently */
break;
case ESP_BLUFI_EVENT_RECV_CA_CERT:
/* Not handle currently */
break;
case ESP_BLUFI_EVENT_RECV_CLIENT_CERT:
/* Not handle currently */
break;
case ESP_BLUFI_EVENT_RECV_SERVER_CERT:
/* Not handle currently */
break;
case ESP_BLUFI_EVENT_RECV_CLIENT_PRIV_KEY:
/* Not handle currently */
break;;
case ESP_BLUFI_EVENT_RECV_SERVER_PRIV_KEY:
/* Not handle currently */
break;
default:
break;
}
}
static void example_gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
switch (event) {
case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
esp_ble_gap_start_advertising(&example_adv_params);
break;
default:
break;
}
}
void app_main()
{
esp_err_t ret;
// Initialize NVS
ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK( ret );
initialise_wifi();
ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT));
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
ret = esp_bt_controller_init(&bt_cfg);
if (ret) {
BLUFI_ERROR("%s initialize bt controller failed: %s\n", __func__, esp_err_to_name(ret));
}
ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
if (ret) {
BLUFI_ERROR("%s enable bt controller failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bluedroid_init();
if (ret) {
BLUFI_ERROR("%s init bluedroid failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bluedroid_enable();
if (ret) {
BLUFI_ERROR("%s init bluedroid failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
BLUFI_INFO("BD ADDR: "ESP_BD_ADDR_STR"\n", ESP_BD_ADDR_HEX(esp_bt_dev_get_address()));
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BLUFI_INFO("BLUFI VERSION %04x\n", esp_blufi_get_version());
ret = esp_ble_gap_register_callback(example_gap_event_handler);
if(ret){
BLUFI_ERROR("%s gap register failed, error code = %x\n", __func__, ret);
return;
}
ret = esp_blufi_register_callbacks(&example_callbacks);
if(ret){
BLUFI_ERROR("%s blufi register failed, error code = %x\n", __func__, ret);
return;
}
esp_blufi_profile_init();
}