kopia lustrzana https://github.com/espressif/esp-idf
422 wiersze
19 KiB
C
422 wiersze
19 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <inttypes.h>
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#include "bluedroid_gatts.h"
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#include "esp_log.h"
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#include "string.h"
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#if CONFIG_BT_CONTROLLER_ENABLED && CONFIG_BT_BLE_ENABLED
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static const char *TAG = "bluedroid_gatts";
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static prepare_type_env_t a_prepare_write_env;
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uint8_t adv_service_uuid128[32] = {
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/* LSB <--------------------------------------------------------------------------------> MSB */
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//first uuid, 16bit, [12],[13] is the value
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0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xEE, 0x00, 0x00, 0x00,
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//second uuid, 32bit, [12], [13], [14], [15] is the value
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0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00,
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};
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// The length of adv data must be less than 31 bytes
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//adv data
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esp_ble_adv_data_t adv_data = {
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.set_scan_rsp = false,
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.include_name = true,
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.include_txpower = false,
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.min_interval = 0x0006, //slave connection min interval, Time = min_interval * 1.25 msec
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.max_interval = 0x0010, //slave connection max interval, Time = max_interval * 1.25 msec
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.appearance = 0x00,
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.manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
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.p_manufacturer_data = NULL, //&test_manufacturer[0],
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.service_data_len = 0,
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.p_service_data = NULL,
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.service_uuid_len = sizeof(adv_service_uuid128),
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.p_service_uuid = adv_service_uuid128,
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.flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
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};
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// scan response data
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esp_ble_adv_data_t scan_rsp_data = {
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.set_scan_rsp = true,
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.include_name = true,
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.include_txpower = true,
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.appearance = 0x00,
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.manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
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.p_manufacturer_data = NULL, //&test_manufacturer[0],
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.service_data_len = 0,
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.p_service_data = NULL,
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.service_uuid_len = sizeof(adv_service_uuid128),
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.p_service_uuid = adv_service_uuid128,
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.flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
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};
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esp_ble_adv_params_t adv_params = {
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.adv_int_min = 0x20,
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.adv_int_max = 0x40,
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.adv_type = ADV_TYPE_IND,
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.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
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.channel_map = ADV_CHNL_ALL,
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.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
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};
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uint8_t char1_str[] = {0x11, 0x22, 0x33};
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esp_attr_value_t gatts_demo_char1_val = {
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.attr_max_len = GATTS_DEMO_CHAR_VAL_LEN_MAX,
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.attr_len = sizeof(char1_str),
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.attr_value = char1_str,
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};
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uint8_t adv_config_done = 0;
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esp_gatt_char_prop_t a_property = 0;
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static struct gatts_profile_inst gl_profile_tab[PROFILE_NUM] = {
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[PROFILE_A_APP_ID] = {
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.gatts_cb = gatts_profile_a_event_handler,
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.gatts_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
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},
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};
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void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param)
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{
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if (param->exec_write.exec_write_flag == ESP_GATT_PREP_WRITE_EXEC) {
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esp_log_buffer_hex(TAG, prepare_write_env->prepare_buf, prepare_write_env->prepare_len);
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} else {
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ESP_LOGI(TAG, "ESP_GATT_PREP_WRITE_CANCEL");
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}
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if (prepare_write_env->prepare_buf) {
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free(prepare_write_env->prepare_buf);
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prepare_write_env->prepare_buf = NULL;
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}
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prepare_write_env->prepare_len = 0;
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}
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void example_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param)
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{
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esp_gatt_status_t status = ESP_GATT_OK;
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// Check if a response is needed
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if (param->write.need_rsp) {
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// Check if the write operation is a prepared write
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if (param->write.is_prep) {
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// Check for invalid offset or attribute length
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if (param->write.offset > PREPARE_BUF_MAX_SIZE) {
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status = ESP_GATT_INVALID_OFFSET;
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} else if ((param->write.offset + param->write.len) > PREPARE_BUF_MAX_SIZE) {
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status = ESP_GATT_INVALID_ATTR_LEN;
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}
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// Allocate memory for the prepare buffer if not already allocated
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if (status == ESP_GATT_OK && prepare_write_env->prepare_buf == NULL) {
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prepare_write_env->prepare_buf = (uint8_t *)malloc(PREPARE_BUF_MAX_SIZE * sizeof(uint8_t));
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prepare_write_env->prepare_len = 0;
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// Check for allocation failure
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if (prepare_write_env->prepare_buf == NULL) {
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ESP_LOGE(TAG, "Gatt_server prep no mem");
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status = ESP_GATT_NO_RESOURCES;
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}
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}
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// Allocate and configure the GATT response
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esp_gatt_rsp_t *gatt_rsp = (esp_gatt_rsp_t *)malloc(sizeof(esp_gatt_rsp_t));
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if (gatt_rsp != NULL) {
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gatt_rsp->attr_value.len = param->write.len;
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gatt_rsp->attr_value.handle = param->write.handle;
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gatt_rsp->attr_value.offset = param->write.offset;
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gatt_rsp->attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
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memcpy(gatt_rsp->attr_value.value, param->write.value, param->write.len);
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esp_err_t response_err = esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, gatt_rsp);
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if (response_err != ESP_OK) {
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ESP_LOGE(TAG, "Send response error");
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}
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free(gatt_rsp);
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} else {
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ESP_LOGE(TAG, "%s, malloc failed, and no resource to send response", __func__);
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status = ESP_GATT_NO_RESOURCES;
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}
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if (status != ESP_GATT_OK) {
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return;
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}
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// Update the prepare buffer with the received data
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memcpy(prepare_write_env->prepare_buf + param->write.offset,
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param->write.value,
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param->write.len);
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prepare_write_env->prepare_len += param->write.len;
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} else {
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// Send a response for non-prepared write
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esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, NULL);
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}
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}
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}
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void gatts_profile_a_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
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{
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switch (event) {
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case ESP_GATTS_REG_EVT:
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ESP_LOGI(TAG, "REGISTER_APP_EVT, status %d, app_id %d", param->reg.status, param->reg.app_id);
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gl_profile_tab[PROFILE_A_APP_ID].service_id.is_primary = true;
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gl_profile_tab[PROFILE_A_APP_ID].service_id.id.inst_id = 0x00;
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gl_profile_tab[PROFILE_A_APP_ID].service_id.id.uuid.len = ESP_UUID_LEN_16;
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gl_profile_tab[PROFILE_A_APP_ID].service_id.id.uuid.uuid.uuid16 = GATTS_SERVICE_UUID_TEST_A;
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esp_err_t set_dev_name_ret = esp_ble_gap_set_device_name(TEST_DEVICE_NAME);
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if (set_dev_name_ret) {
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ESP_LOGE(TAG, "set device name failed, error code = %x", set_dev_name_ret);
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}
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//config adv data
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esp_err_t ret = esp_ble_gap_config_adv_data(&adv_data);
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if (ret) {
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ESP_LOGE(TAG, "config adv data failed, error code = %x", ret);
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}
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adv_config_done |= adv_config_flag;
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//config scan response data
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ret = esp_ble_gap_config_adv_data(&scan_rsp_data);
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if (ret) {
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ESP_LOGE(TAG, "config scan response data failed, error code = %x", ret);
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}
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adv_config_done |= scan_rsp_config_flag;
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esp_ble_gatts_create_service(gatts_if, &gl_profile_tab[PROFILE_A_APP_ID].service_id, GATTS_NUM_HANDLE_TEST_A);
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break;
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case ESP_GATTS_READ_EVT: {
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ESP_LOGI(TAG, "GATT_READ_EVT, conn_id %d, trans_id %"PRIu32", handle %d", param->read.conn_id, param->read.trans_id, param->read.handle);
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esp_gatt_rsp_t rsp;
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memset(&rsp, 0, sizeof(esp_gatt_rsp_t));
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rsp.attr_value.handle = param->read.handle;
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rsp.attr_value.len = 4;
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rsp.attr_value.value[0] = 0xde;
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rsp.attr_value.value[1] = 0xed;
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rsp.attr_value.value[2] = 0xbe;
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rsp.attr_value.value[3] = 0xef;
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esp_ble_gatts_send_response(gatts_if, param->read.conn_id, param->read.trans_id,
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ESP_GATT_OK, &rsp);
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break;
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}
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case ESP_GATTS_WRITE_EVT: {
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ESP_LOGI(TAG, "GATT_WRITE_EVT, conn_id %d, trans_id %"PRIu32", handle %d", param->write.conn_id, param->write.trans_id, param->write.handle);
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if (!param->write.is_prep) {
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ESP_LOGI(TAG, "GATT_WRITE_EVT, value len %d, value :", param->write.len);
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esp_log_buffer_hex(TAG, param->write.value, param->write.len);
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if (gl_profile_tab[PROFILE_A_APP_ID].descr_handle == param->write.handle && param->write.len == 2) {
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uint16_t descr_value = param->write.value[1] << 8 | param->write.value[0];
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if (descr_value == 0x0001) {
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if (a_property & ESP_GATT_CHAR_PROP_BIT_NOTIFY) {
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ESP_LOGI(TAG, "notify enable");
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uint8_t notify_data[15];
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for (int i = 0; i < sizeof(notify_data); ++i) {
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notify_data[i] = i % 0xff;
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}
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//the size of notify_data[] need less than MTU size
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esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, gl_profile_tab[PROFILE_A_APP_ID].char_handle,
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sizeof(notify_data), notify_data, false);
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}
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} else if (descr_value == 0x0002) {
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if (a_property & ESP_GATT_CHAR_PROP_BIT_INDICATE) {
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ESP_LOGI(TAG, "indicate enable");
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uint8_t indicate_data[15];
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for (int i = 0; i < sizeof(indicate_data); ++i) {
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indicate_data[i] = i % 0xff;
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}
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//the size of indicate_data[] need less than MTU size
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esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, gl_profile_tab[PROFILE_A_APP_ID].char_handle,
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sizeof(indicate_data), indicate_data, true);
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}
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} else if (descr_value == 0x0000) {
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ESP_LOGI(TAG, "notify/indicate disable ");
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} else {
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ESP_LOGE(TAG, "unknown descr value");
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esp_log_buffer_hex(TAG, param->write.value, param->write.len);
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}
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}
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}
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example_write_event_env(gatts_if, &a_prepare_write_env, param);
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break;
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}
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case ESP_GATTS_EXEC_WRITE_EVT:
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ESP_LOGI(TAG, "ESP_GATTS_EXEC_WRITE_EVT");
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esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
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example_exec_write_event_env(&a_prepare_write_env, param);
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break;
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case ESP_GATTS_MTU_EVT:
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ESP_LOGI(TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu);
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break;
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case ESP_GATTS_UNREG_EVT:
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break;
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case ESP_GATTS_CREATE_EVT:
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ESP_LOGI(TAG, "CREATE_SERVICE_EVT, status %d, service_handle %d", param->create.status, param->create.service_handle);
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gl_profile_tab[PROFILE_A_APP_ID].service_handle = param->create.service_handle;
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gl_profile_tab[PROFILE_A_APP_ID].char_uuid.len = ESP_UUID_LEN_16;
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gl_profile_tab[PROFILE_A_APP_ID].char_uuid.uuid.uuid16 = GATTS_CHAR_UUID_TEST_A;
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esp_ble_gatts_start_service(gl_profile_tab[PROFILE_A_APP_ID].service_handle);
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a_property = ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
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esp_err_t add_char_ret = esp_ble_gatts_add_char(gl_profile_tab[PROFILE_A_APP_ID].service_handle, &gl_profile_tab[PROFILE_A_APP_ID].char_uuid,
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ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
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a_property,
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&gatts_demo_char1_val, NULL);
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if (add_char_ret) {
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ESP_LOGE(TAG, "add char failed, error code =%x", add_char_ret);
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}
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break;
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case ESP_GATTS_ADD_INCL_SRVC_EVT:
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break;
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case ESP_GATTS_ADD_CHAR_EVT: {
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uint16_t length = 0;
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const uint8_t *prf_char;
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ESP_LOGI(TAG, "ADD_CHAR_EVT, status %d, attr_handle %d, service_handle %d",
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param->add_char.status, param->add_char.attr_handle, param->add_char.service_handle);
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gl_profile_tab[PROFILE_A_APP_ID].char_handle = param->add_char.attr_handle;
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gl_profile_tab[PROFILE_A_APP_ID].descr_uuid.len = ESP_UUID_LEN_16;
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gl_profile_tab[PROFILE_A_APP_ID].descr_uuid.uuid.uuid16 = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
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esp_err_t get_attr_ret = esp_ble_gatts_get_attr_value(param->add_char.attr_handle, &length, &prf_char);
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if (get_attr_ret == ESP_FAIL) {
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ESP_LOGE(TAG, "ILLEGAL HANDLE");
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}
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ESP_LOGI(TAG, "the gatts demo char length = %x", length);
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for (int i = 0; i < length; i++) {
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ESP_LOGI(TAG, "prf_char[%x] =%x", i, prf_char[i]);
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}
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esp_err_t add_descr_ret = esp_ble_gatts_add_char_descr(gl_profile_tab[PROFILE_A_APP_ID].service_handle, &gl_profile_tab[PROFILE_A_APP_ID].descr_uuid,
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ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE, NULL, NULL);
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if (add_descr_ret) {
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ESP_LOGE(TAG, "add char descr failed, error code =%x", add_descr_ret);
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}
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break;
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}
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case ESP_GATTS_ADD_CHAR_DESCR_EVT:
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gl_profile_tab[PROFILE_A_APP_ID].descr_handle = param->add_char_descr.attr_handle;
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ESP_LOGI(TAG, "ADD_DESCR_EVT, status %d, attr_handle %d, service_handle %d",
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param->add_char_descr.status, param->add_char_descr.attr_handle, param->add_char_descr.service_handle);
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break;
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case ESP_GATTS_DELETE_EVT:
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break;
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case ESP_GATTS_START_EVT:
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ESP_LOGI(TAG, "SERVICE_START_EVT, status %d, service_handle %d",
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param->start.status, param->start.service_handle);
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break;
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case ESP_GATTS_STOP_EVT:
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break;
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case ESP_GATTS_CONNECT_EVT: {
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esp_ble_conn_update_params_t conn_params = {0};
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memcpy(conn_params.bda, param->connect.remote_bda, sizeof(esp_bd_addr_t));
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/* For the IOS system, please reference the apple official documents about the ble connection parameters restrictions. */
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conn_params.latency = 0;
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conn_params.max_int = 0x20; // max_int = 0x20*1.25ms = 40ms
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conn_params.min_int = 0x10; // min_int = 0x10*1.25ms = 20ms
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conn_params.timeout = 400; // timeout = 400*10ms = 4000ms
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ESP_LOGI(TAG, "ESP_GATTS_CONNECT_EVT, conn_id %d, remote %02x:%02x:%02x:%02x:%02x:%02x:",
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param->connect.conn_id,
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param->connect.remote_bda[0], param->connect.remote_bda[1], param->connect.remote_bda[2],
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param->connect.remote_bda[3], param->connect.remote_bda[4], param->connect.remote_bda[5]);
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gl_profile_tab[PROFILE_A_APP_ID].conn_id = param->connect.conn_id;
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//start sent the update connection parameters to the peer device.
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esp_ble_gap_update_conn_params(&conn_params);
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break;
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}
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case ESP_GATTS_DISCONNECT_EVT:
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ESP_LOGI(TAG, "ESP_GATTS_DISCONNECT_EVT, disconnect reason 0x%x", param->disconnect.reason);
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esp_ble_gap_start_advertising(&adv_params);
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break;
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case ESP_GATTS_CONF_EVT:
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ESP_LOGI(TAG, "ESP_GATTS_CONF_EVT, status %d attr_handle %d", param->conf.status, param->conf.handle);
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if (param->conf.status != ESP_GATT_OK) {
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esp_log_buffer_hex(TAG, param->conf.value, param->conf.len);
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}
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break;
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case ESP_GATTS_OPEN_EVT:
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case ESP_GATTS_CANCEL_OPEN_EVT:
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case ESP_GATTS_CLOSE_EVT:
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case ESP_GATTS_LISTEN_EVT:
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case ESP_GATTS_CONGEST_EVT:
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default:
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break;
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}
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}
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void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
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{
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switch (event) {
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case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
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adv_config_done &= (~adv_config_flag);
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if (adv_config_done == 0) {
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if (esp_ble_gap_start_advertising(&adv_params) == ESP_OK) {
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ESP_LOGI(TAG, "Started advertising.");
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}
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}
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break;
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case ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT:
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adv_config_done &= (~scan_rsp_config_flag);
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if (adv_config_done == 0) {
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if (esp_ble_gap_start_advertising(&adv_params) == ESP_OK) {
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ESP_LOGI(TAG, "Started advertising.");
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}
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}
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break;
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case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
|
|
//advertising start complete event to indicate advertising start successfully or failed
|
|
if (param->adv_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
|
|
ESP_LOGE(TAG, "Advertising start failed");
|
|
}
|
|
break;
|
|
case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
|
|
if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS) {
|
|
ESP_LOGE(TAG, "Advertising stop failed");
|
|
} else {
|
|
ESP_LOGI(TAG, "Stop adv successfully");
|
|
}
|
|
break;
|
|
case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
|
|
ESP_LOGI(TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
|
|
param->update_conn_params.status,
|
|
param->update_conn_params.min_int,
|
|
param->update_conn_params.max_int,
|
|
param->update_conn_params.conn_int,
|
|
param->update_conn_params.latency,
|
|
param->update_conn_params.timeout);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
|
|
{
|
|
/* If event is register event, store the gatts_if for each profile */
|
|
if (event == ESP_GATTS_REG_EVT) {
|
|
if (param->reg.status == ESP_GATT_OK) {
|
|
gl_profile_tab[param->reg.app_id].gatts_if = gatts_if;
|
|
} else {
|
|
ESP_LOGI(TAG, "Reg app failed, app_id %04x, status %d",
|
|
param->reg.app_id,
|
|
param->reg.status);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* If the gatts_if equal to profile A, call profile A cb handler,
|
|
* so here call each profile's callback */
|
|
do {
|
|
int idx;
|
|
for (idx = 0; idx < PROFILE_NUM; idx++) {
|
|
if (gatts_if == ESP_GATT_IF_NONE || /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
|
|
gatts_if == gl_profile_tab[idx].gatts_if) {
|
|
if (gl_profile_tab[idx].gatts_cb) {
|
|
gl_profile_tab[idx].gatts_cb(event, gatts_if, param);
|
|
}
|
|
}
|
|
}
|
|
} while (0);
|
|
}
|
|
|
|
#endif
|