150 lines
4.4 KiB
C
150 lines
4.4 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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#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 "time.h"
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#include "sys/time.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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#define SPP_SHOW_DATA 0
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#define SPP_SHOW_SPEED 1
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#define SPP_SHOW_MODE SPP_SHOW_SPEED /*Choose show mode: show data or speed*/
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static const esp_spp_mode_t esp_spp_mode = ESP_SPP_MODE_CB;
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static struct timeval time_new, time_old;
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static long data_num = 0;
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static const esp_spp_sec_t sec_mask = ESP_SPP_SEC_NONE;
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static const esp_spp_role_t role_slave = ESP_SPP_ROLE_SLAVE;
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static void print_speed(void)
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{
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float time_old_s = time_old.tv_sec + time_old.tv_usec / 1000000.0;
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float time_new_s = time_new.tv_sec + time_new.tv_usec / 1000000.0;
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float time_interval = time_new_s - time_old_s;
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float speed = data_num * 8 / time_interval / 1000.0;
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ESP_LOGI(SPP_TAG, "speed(%fs ~ %fs): %f kbit/s" , time_old_s, time_new_s, speed);
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data_num = 0;
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time_old.tv_sec = time_new.tv_sec;
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time_old.tv_usec = time_new.tv_usec;
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}
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static void esp_spp_cb(esp_spp_cb_event_t event, esp_spp_cb_param_t *param)
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{
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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_DATA_IND_EVT:
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#if (SPP_SHOW_MODE == SPP_SHOW_DATA)
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ESP_LOGI(SPP_TAG, "ESP_SPP_DATA_IND_EVT len=%d handle=%d",
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param->data_ind.len, param->data_ind.handle);
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esp_log_buffer_hex("",param->data_ind.data,param->data_ind.len);
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#else
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gettimeofday(&time_new, NULL);
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data_num += param->data_ind.len;
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if (time_new.tv_sec - time_old.tv_sec >= 3) {
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print_speed();
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}
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#endif
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break;
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case ESP_SPP_CONG_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_CONG_EVT");
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break;
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case ESP_SPP_WRITE_EVT:
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ESP_LOGI(SPP_TAG, "ESP_SPP_WRITE_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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gettimeofday(&time_old, NULL);
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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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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) {
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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_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\n", __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\n", __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\n", __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\n", __func__);
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return;
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}
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if (esp_spp_register_callback(esp_spp_cb) != ESP_OK) {
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ESP_LOGE(SPP_TAG, "%s spp register failed\n", __func__);
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return;
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}
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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\n", __func__);
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return;
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}
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}
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