221 lines
6.9 KiB
C
221 lines
6.9 KiB
C
/*
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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/****************************************************************************
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*
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* This file is for bt_spp_vfs_acceptor demo. It can create servers, wait for connected and receive data.
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* run bt_spp_vfs_acceptor demo, the bt_spp_vfs_initiator demo will automatically connect the bt_spp_vfs_acceptor demo,
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* then receive data.
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*
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****************************************************************************/
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#include <stdint.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include "nvs.h"
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#include "nvs_flash.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_log.h"
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#include "esp_bt.h"
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#include "esp_bt_main.h"
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#include "esp_gap_bt_api.h"
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#include "esp_bt_device.h"
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#include "esp_spp_api.h"
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#include "spp_task.h"
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#include "time.h"
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#include "sys/time.h"
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#include "esp_vfs.h"
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#include "sys/unistd.h"
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#define SPP_TAG "SPP_ACCEPTOR_DEMO"
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#define SPP_SERVER_NAME "SPP_SERVER"
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#define EXCAMPLE_DEVICE_NAME "ESP_SPP_ACCEPTOR"
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static const esp_spp_mode_t esp_spp_mode = ESP_SPP_MODE_VFS;
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static const esp_spp_sec_t sec_mask = ESP_SPP_SEC_AUTHENTICATE;
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static const esp_spp_role_t role_slave = ESP_SPP_ROLE_SLAVE;
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#define SPP_DATA_LEN 100
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static uint8_t spp_data[SPP_DATA_LEN];
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static void spp_read_handle(void * param)
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{
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int size = 0;
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int fd = (int)param;
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do {
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size = read (fd, spp_data, SPP_DATA_LEN);
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ESP_LOGI(SPP_TAG, "fd = %d data_len = %d", fd, size);
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if (size == -1) {
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break;
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}
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esp_log_buffer_hex(SPP_TAG, spp_data, size);
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if (size == 0) {
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/*read fail due to there is no data, retry after 1s*/
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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} while (1);
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spp_wr_task_shut_down();
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}
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static void esp_spp_cb(uint16_t e, void *p)
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{
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esp_spp_cb_event_t event = e;
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esp_spp_cb_param_t *param = p;
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switch (event) {
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case ESP_SPP_INIT_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_INIT_EVT");
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esp_bt_dev_set_device_name(EXCAMPLE_DEVICE_NAME);
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esp_bt_gap_set_scan_mode(ESP_BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE);
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esp_spp_start_srv(sec_mask,role_slave, 0, SPP_SERVER_NAME);
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break;
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case ESP_SPP_DISCOVERY_COMP_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_DISCOVERY_COMP_EVT");
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break;
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case ESP_SPP_OPEN_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_OPEN_EVT");
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break;
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case ESP_SPP_CLOSE_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_CLOSE_EVT");
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break;
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case ESP_SPP_START_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_START_EVT");
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break;
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case ESP_SPP_CL_INIT_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_CL_INIT_EVT");
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break;
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case ESP_SPP_SRV_OPEN_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_SRV_OPEN_EVT");
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spp_wr_task_start_up(spp_read_handle, param->srv_open.fd);
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break;
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default:
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break;
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}
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}
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static void esp_spp_stack_cb(esp_spp_cb_event_t event, esp_spp_cb_param_t *param)
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{
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spp_task_work_dispatch(esp_spp_cb, event, param, sizeof(esp_spp_cb_param_t), NULL);
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}
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void esp_bt_gap_cb(esp_bt_gap_cb_event_t event, esp_bt_gap_cb_param_t *param)
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{
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switch (event) {
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case ESP_BT_GAP_AUTH_CMPL_EVT:{
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if (param->auth_cmpl.stat == ESP_BT_STATUS_SUCCESS) {
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ESP_LOGI(SPP_TAG, "authentication success: %s", param->auth_cmpl.device_name);
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esp_log_buffer_hex(SPP_TAG, param->auth_cmpl.bda, ESP_BD_ADDR_LEN);
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} else {
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ESP_LOGE(SPP_TAG, "authentication failed, status:%d", param->auth_cmpl.stat);
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}
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break;
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}
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case ESP_BT_GAP_PIN_REQ_EVT:{
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ESP_LOGI(SPP_TAG, "ESP_BT_GAP_PIN_REQ_EVT min_16_digit:%d", param->pin_req.min_16_digit);
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if (param->pin_req.min_16_digit) {
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ESP_LOGI(SPP_TAG, "Input pin code: 0000 0000 0000 0000");
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esp_bt_pin_code_t pin_code = {0};
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esp_bt_gap_pin_reply(param->pin_req.bda, true, 16, pin_code);
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} else {
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ESP_LOGI(SPP_TAG, "Input pin code: 1234");
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esp_bt_pin_code_t pin_code;
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pin_code[0] = '1';
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pin_code[1] = '2';
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pin_code[2] = '3';
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pin_code[3] = '4';
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esp_bt_gap_pin_reply(param->pin_req.bda, true, 4, pin_code);
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}
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break;
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}
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case ESP_BT_GAP_CFM_REQ_EVT:
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ESP_LOGI(SPP_TAG, "ESP_BT_GAP_CFM_REQ_EVT Please compare the numeric value: %d", param->cfm_req.num_val);
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esp_bt_gap_ssp_confirm_reply(param->cfm_req.bda, true);
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break;
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case ESP_BT_GAP_KEY_NOTIF_EVT:
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ESP_LOGI(SPP_TAG, "ESP_BT_GAP_KEY_NOTIF_EVT passkey:%d", param->key_notif.passkey);
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break;
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case ESP_BT_GAP_KEY_REQ_EVT:
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ESP_LOGI(SPP_TAG, "ESP_BT_GAP_KEY_REQ_EVT Please enter passkey!");
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break;
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default: {
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ESP_LOGI(SPP_TAG, "event: %d", event);
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break;
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}
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}
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return;
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}
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void app_main()
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{
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esp_err_t ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK( ret );
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ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_BLE));
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esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
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if (esp_bt_controller_init(&bt_cfg) != ESP_OK) {
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ESP_LOGE(SPP_TAG, "%s initialize controller failed", __func__);
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return;
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}
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if (esp_bt_controller_enable(ESP_BT_MODE_CLASSIC_BT) != ESP_OK) {
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ESP_LOGE(SPP_TAG, "%s enable controller failed", __func__);
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return;
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}
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if (esp_bluedroid_init() != ESP_OK) {
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ESP_LOGE(SPP_TAG, "%s initialize bluedroid failed", __func__);
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return;
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}
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if (esp_bluedroid_enable() != ESP_OK) {
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ESP_LOGE(SPP_TAG, "%s enable bluedroid failed", __func__);
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return;
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}
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if (esp_bt_gap_register_callback(esp_bt_gap_cb) != ESP_OK) {
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ESP_LOGE(SPP_TAG, "%s gap register failed: %s\n", __func__, esp_err_to_name(ret));
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return;
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}
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if (esp_spp_register_callback(esp_spp_stack_cb) != ESP_OK) {
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ESP_LOGE(SPP_TAG, "%s spp register failed", __func__);
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return;
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}
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esp_spp_vfs_register();
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spp_task_task_start_up();
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if (esp_spp_init(esp_spp_mode) != ESP_OK) {
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ESP_LOGE(SPP_TAG, "%s spp init failed", __func__);
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return;
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}
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/* Set default parameters for Secure Simple Pairing */
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esp_bt_sp_param_t param_type = ESP_BT_SP_IOCAP_MODE;
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esp_bt_io_cap_t iocap = ESP_BT_IO_CAP_IO;
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esp_bt_gap_set_security_param(param_type, &iocap, sizeof(uint8_t));
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/*
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* Set default parameters for Legacy Pairing
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* Use variable pin, input pin code when pairing
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*/
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esp_bt_pin_type_t pin_type = ESP_BT_PIN_TYPE_VARIABLE;
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esp_bt_pin_code_t pin_code;
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esp_bt_gap_set_pin(pin_type, 0, pin_code);
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}
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