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esp-idf/examples/bluetooth/ble_spp_client/main/spp_client_demo.c
xiewenxiang 2b0893d8a8 component/bt: add example for ble spp client 
- refactory spp client code for modification suggestion.
2017-08-29 22:35:33 +08:00

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// Copyright 2015-2017 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.
/****************************************************************************
*
* This file is for ble spp client demo.
*
****************************************************************************/
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include "controller.h"
#include "driver/uart.h"
#include "bt.h"
#include "nvs_flash.h"
#include "esp_bt_device.h"
#include "esp_gap_ble_api.h"
#include "esp_gattc_api.h"
#include "esp_gatt_defs.h"
#include "esp_bt_main.h"
#include "esp_system.h"
#include "btc_main.h"
#define GATTC_TAG "GATTC_SPP_DEMO"
#define PROFILE_NUM 1
#define PROFILE_APP_ID 0
#define BT_BD_ADDR_STR "%02x:%02x:%02x:%02x:%02x:%02x"
#define BT_BD_ADDR_HEX(addr) addr[0],addr[1],addr[2],addr[3],addr[4],addr[5]
#define SPP_SRV_INDEX 1
#define SPP_DATA_RECV_CHAR_INDEX 1
#define SPP_DATA_NTFY_CHAR_INDEX 2
#define SPP_CMD_CHAR_INDEX 3
#define SPP_STATUS_CHAR_INDEX 4
#define SPP_HEARTBEAT_CHAR_INDEX 5
#define SPP_NO_DESC 0
#define SPP_IS_DESC 1
//#define SUPPORT_HEARTBEAT
//#define DEBUG_MODE
typedef struct spp_ble_gattc_char_descr {
int char_descr_index;
uint16_t conn_id;
esp_gatt_id_t descr_id;
struct spp_ble_gattc_char_descr *next;
} spp_ble_gattc_char_descr_t;
typedef struct spp_ble_gattc_char {
int srv_index;
int index;
uint16_t conn_id;
esp_gatt_srvc_id_t srvc_id;
esp_gatt_id_t char_id;
esp_gatt_char_prop_t char_prop;
spp_ble_gattc_char_descr_t * char_descr;
struct spp_ble_gattc_char *next;
} spp_ble_gattc_char_t;
typedef struct {
int32_t len;
spp_ble_gattc_char_t * pfirst;
spp_ble_gattc_char_t * plast;
} spp_ble_gattc_char_head;
typedef struct at_ble_gattc_srv {
int index;
uint16_t conn_id;
esp_gatt_srvc_id_t srvc_id;
spp_ble_gattc_char_head * gattc_srv_char_head;
struct at_ble_gattc_srv *next;
} spp_ble_gattc_srv_t;
typedef struct {
int32_t len;
spp_ble_gattc_srv_t * pfirst;
spp_ble_gattc_srv_t * plast;
} spp_ble_gattc_srv_head;
static spp_ble_gattc_srv_head pAtGattcSrvHead = {
.len = 0,
.pfirst = NULL,
.plast = NULL
};
struct gattc_profile_inst {
esp_gattc_cb_t gattc_cb;
uint16_t gattc_if;
uint16_t app_id;
uint16_t conn_id;
esp_bd_addr_t remote_bda;
};
///Declare static functions
static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
static void esp_gattc_cb(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
static void gattc_profile_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
/* One gatt-based profile one app_id and one gattc_if, this array will store the gattc_if returned by ESP_GATTS_REG_EVT */
static struct gattc_profile_inst gl_profile_tab[PROFILE_NUM] = {
[PROFILE_APP_ID] = {
.gattc_cb = gattc_profile_event_handler,
.gattc_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
},
};
static esp_ble_scan_params_t ble_scan_params = {
.scan_type = BLE_SCAN_TYPE_ACTIVE,
.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
.scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL,
.scan_interval = 0x50,
.scan_window = 0x30
};
static const char device_name[] = "ESP_SPP_SERVER";
static bool is_connect = false;
static uint16_t spp_conn_id = 0;
static uint16_t spp_mtu_size = 23;
static uint16_t cmd = 0;
static uint16_t wr_descr_ccc_num = 0;
static uint16_t spp_gattc_if = 0xff;
static int need_notify_number = 0;
static int char_descr_index_count = 0;
static char * notify_value_p = NULL;
static int notify_value_offset = 0;
static int notify_value_count = 0;
static spp_ble_gattc_srv_t * temp_srv_p = NULL;
static spp_ble_gattc_char_t * notify_char_pp = NULL;
static spp_ble_gattc_char_t notify_char_p[3] ;
static spp_ble_gattc_char_t * temp_gattc_char_p1 = NULL;
static spp_ble_gattc_char_descr_t * notify_char_descr_p[2] = {NULL,NULL};
static spp_ble_gattc_char_descr_t * temp_char_descr_p = NULL;
static spp_ble_gattc_char_head * pGattcCharHead = NULL;
static esp_ble_gap_cb_param_t scan_rst;
static xQueueHandle cmd_reg_queue = NULL;
static xQueueHandle cmd_read_queue = NULL;
QueueHandle_t spp_uart_queue = NULL;
#ifdef SUPPORT_HEARTBEAT
static uint8_t heartbeat_s[9] = {'E','s','p','r','e','s','s','i','f'};
static xQueueHandle cmd_heartbeat_queue = NULL;
#endif
static void print_srv_node(void)
{
temp_srv_p = pAtGattcSrvHead.pfirst;
if(temp_srv_p == NULL){
ESP_LOGE(GATTC_TAG, "temp_srv_p == NULL,%s L#%d\n",__func__,__LINE__);
}
temp_srv_p = pAtGattcSrvHead.pfirst;
while(temp_srv_p != NULL){
ESP_LOGI(GATTC_TAG,"+SRV:No.%d,UUID:0x%04x\n", temp_srv_p->index,temp_srv_p->srvc_id.id.uuid.uuid.uuid16);
temp_srv_p = temp_srv_p->next;
}
}
static void get_char_and_descr(void)
{
pGattcCharHead = (spp_ble_gattc_char_head *)malloc(sizeof(spp_ble_gattc_char_head));
if(pGattcCharHead == NULL){
ESP_LOGE(GATTC_TAG, "malloc failed,%s L#%d\n",__func__,__LINE__);
return;
}
pGattcCharHead->len = 0;
pGattcCharHead->pfirst = NULL;
pGattcCharHead->plast = NULL;
pAtGattcSrvHead.pfirst->gattc_srv_char_head = pGattcCharHead;
temp_srv_p = pAtGattcSrvHead.pfirst;
esp_ble_gattc_get_characteristic(spp_gattc_if, temp_srv_p->conn_id, &temp_srv_p->srvc_id, NULL);
}
static void Characteristic_Rd(int32_t srv_index,int32_t char_index)
{
spp_ble_gattc_char_t * pGattc_char_node = NULL;
temp_srv_p = pAtGattcSrvHead.pfirst;
if(temp_srv_p == NULL) {
ESP_LOGE(GATTC_TAG, "temp_srv_p == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
while(--srv_index) {
temp_srv_p = temp_srv_p->next;
if (temp_srv_p == NULL) {
ESP_LOGE(GATTC_TAG, "temp_srv_p == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
}
pGattcCharHead = temp_srv_p->gattc_srv_char_head;
if(pGattcCharHead == NULL){
ESP_LOGE(GATTC_TAG, "pGattcCharHead == NULL,%s L#%d\n",__func__,__LINE__);
return;
}
pGattc_char_node = pGattcCharHead->pfirst;
if(pGattc_char_node == NULL) {
ESP_LOGE(GATTC_TAG, "pGattc_char_node == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
while(--char_index){
pGattc_char_node = pGattc_char_node->next;
if(pGattc_char_node == NULL){
ESP_LOGE(GATTC_TAG, "pGattc_char_node == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
}
esp_ble_gattc_read_char(spp_gattc_if, pGattc_char_node->conn_id, &pGattc_char_node->srvc_id, &pGattc_char_node->char_id, ESP_GATT_AUTH_REQ_NONE);
}
static void Characteristic_Wr(int32_t srv_index,int32_t char_index,char * s ,size_t length)
{
future_t **future_p = NULL;
int32_t len = 0;
spp_ble_gattc_char_t * pGattc_char_node;
uint8_t * spp_gattc_wr_buffer = NULL;
if(length == 0) {
return ;
}
len = length;
temp_srv_p = pAtGattcSrvHead.pfirst;
if(temp_srv_p == NULL) {
ESP_LOGE(GATTC_TAG, "temp_srv_p == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
while(--srv_index) {
temp_srv_p = temp_srv_p->next;
if (temp_srv_p == NULL) {
ESP_LOGE(GATTC_TAG, "temp_srv_p == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
}
pGattcCharHead = temp_srv_p->gattc_srv_char_head;
if(pGattcCharHead == NULL){
ESP_LOGE(GATTC_TAG, "pGattcCharHead == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
pGattc_char_node = pGattcCharHead->pfirst;
if (pGattc_char_node == NULL) {
ESP_LOGE(GATTC_TAG, "pGattc_char_node == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
while(--char_index){
pGattc_char_node = pGattc_char_node->next;
if(pGattc_char_node == NULL){
ESP_LOGE(GATTC_TAG, "pGattc_char_node == NULL,%s L#%d\n",__func__,__LINE__);
return ;
}
}
spp_gattc_wr_buffer = (uint8_t *)malloc(sizeof(uint8_t)*(len));
if(spp_gattc_wr_buffer == NULL){
ESP_LOGE(GATTC_TAG, "malloc failed,%s L#%d\n",__func__,__LINE__);
return;
}
memcpy(spp_gattc_wr_buffer,s,len);
if((pGattc_char_node->char_prop & (ESP_GATT_CHAR_PROP_BIT_WRITE_NR|ESP_GATT_CHAR_PROP_BIT_WRITE)) == 0){
ESP_LOGE(GATTC_TAG,"char_prop do not allow write\n");
free(spp_gattc_wr_buffer);
return ;
}
future_p = btc_main_get_future_p(BTC_MAIN_ENABLE_FUTURE);
*future_p = future_new();
if (*future_p == NULL) {
ESP_LOGE(GATTC_TAG,"%s failed\n", __func__);
return;
}
esp_ble_gattc_write_char(spp_gattc_if, pGattc_char_node->conn_id, &pGattc_char_node->srvc_id, &pGattc_char_node->char_id, len,spp_gattc_wr_buffer, ESP_GATT_WRITE_TYPE_RSP, ESP_GATT_AUTH_REQ_NONE);
free(spp_gattc_wr_buffer);
if(future_await(*future_p) == FUTURE_FAIL) {
ESP_LOGE(GATTC_TAG,"%s failed\n", __func__);
return;
}
return ;
}
static void store_srv_info(esp_ble_gattc_cb_param_t * p_data)
{
spp_ble_gattc_srv_t * pGattc_srv_node = NULL;
pGattc_srv_node = (spp_ble_gattc_srv_t *)malloc(sizeof(spp_ble_gattc_srv_t));
if (pGattc_srv_node == NULL) {
ESP_LOGE(GATTC_TAG, "malloc failed,%s L#%d\n",__func__,__LINE__);
return;
}
pGattc_srv_node->conn_id = p_data->search_res.conn_id;
pGattc_srv_node->next = NULL;
pGattc_srv_node->gattc_srv_char_head = NULL;
pGattc_srv_node->index = pAtGattcSrvHead.len + 1;
pGattc_srv_node->srvc_id.is_primary = p_data->search_res.srvc_id.is_primary;
pGattc_srv_node->srvc_id.id.inst_id = p_data->search_res.srvc_id.id.inst_id;
pGattc_srv_node->srvc_id.id.uuid.len = p_data->search_res.srvc_id.id.uuid.len;
pGattc_srv_node->srvc_id.id.uuid.uuid.uuid16 = p_data->search_res.srvc_id.id.uuid.uuid.uuid16;
if (pAtGattcSrvHead.len == 0) {
pAtGattcSrvHead.len++;
pAtGattcSrvHead.pfirst = pGattc_srv_node;
pAtGattcSrvHead.plast = pGattc_srv_node;
} else {
pAtGattcSrvHead.len++;
pAtGattcSrvHead.plast->next = pGattc_srv_node;
pAtGattcSrvHead.plast = pGattc_srv_node;
}
}
static void store_char_info(esp_ble_gattc_cb_param_t * p_data)
{
spp_ble_gattc_char_t * pGattc_char_node = NULL;
pGattc_char_node = (spp_ble_gattc_char_t *)malloc(sizeof(spp_ble_gattc_char_t));
if(pGattc_char_node == NULL){
ESP_LOGE(GATTC_TAG, "malloc failed,%s L#%d\n",__func__,__LINE__);
return;
}
pGattc_char_node->srv_index = temp_srv_p->index;
pGattc_char_node->char_descr = NULL;
pGattc_char_node->conn_id = p_data->get_char.conn_id;
pGattc_char_node->next = NULL;
pGattc_char_node->index = pGattcCharHead->len + 1;
pGattc_char_node->srvc_id.is_primary = p_data->get_char.srvc_id.is_primary;
pGattc_char_node->srvc_id.id.inst_id = p_data->get_char.srvc_id.id.inst_id;
pGattc_char_node->srvc_id.id.uuid.len = p_data->get_char.srvc_id.id.uuid.len;
pGattc_char_node->srvc_id.id.uuid.uuid.uuid16 = p_data->get_char.srvc_id.id.uuid.uuid.uuid16;
pGattc_char_node->char_id.inst_id = p_data->get_char.char_id.inst_id;
pGattc_char_node->char_id.uuid.len = p_data->get_char.char_id.uuid.len;
pGattc_char_node->char_prop = p_data->get_char.char_prop;
pGattc_char_node->char_id.uuid.uuid.uuid16 = p_data->get_char.char_id.uuid.uuid.uuid16;
temp_gattc_char_p1 = pGattc_char_node;
if (pGattcCharHead->len == 0) {
pGattcCharHead->len++;
pGattcCharHead->pfirst = pGattc_char_node;
pGattcCharHead->plast = pGattc_char_node;
} else {
pGattcCharHead->len++;
pGattcCharHead->plast->next = pGattc_char_node;
pGattcCharHead->plast = pGattc_char_node;
}
esp_ble_gattc_get_descriptor(spp_gattc_if, pGattc_char_node->conn_id, &pGattc_char_node->srvc_id, &pGattc_char_node->char_id, NULL);
}
static void store_desc_info(esp_ble_gattc_cb_param_t * p_data)
{
spp_ble_gattc_char_descr_t * pGattc_char_node_descr = NULL;
temp_char_descr_p = temp_gattc_char_p1->char_descr;
pGattc_char_node_descr = (spp_ble_gattc_char_descr_t *)malloc(sizeof(spp_ble_gattc_char_descr_t));
if(pGattc_char_node_descr == NULL){
ESP_LOGE(GATTC_TAG, "malloc failed,%s L#%d\n",__func__,__LINE__);
return;
}
pGattc_char_node_descr->conn_id = p_data->get_descr.conn_id;
pGattc_char_node_descr->char_descr_index = ++char_descr_index_count;
if (temp_char_descr_p == NULL)
temp_gattc_char_p1->char_descr = pGattc_char_node_descr;
else {
while (temp_char_descr_p->next != NULL) {
temp_char_descr_p = temp_char_descr_p->next;
}
temp_char_descr_p->next = pGattc_char_node_descr;
}
pGattc_char_node_descr->next = NULL;
pGattc_char_node_descr->descr_id.inst_id = p_data->get_descr.descr_id.inst_id;
pGattc_char_node_descr->descr_id.uuid.len = p_data->get_descr.descr_id.uuid.len;
pGattc_char_node_descr->descr_id.uuid.uuid.uuid16 = p_data->get_descr.descr_id.uuid.uuid.uuid16;
if((p_data->get_descr.descr_id.uuid.uuid.uuid16 == 0x2902)&&(need_notify_number<3)){
memset(&(notify_char_p[need_notify_number]),0x0,sizeof(spp_ble_gattc_char_t));
memcpy(&(notify_char_p[need_notify_number]),temp_gattc_char_p1,sizeof(spp_ble_gattc_char_t));
notify_char_descr_p[need_notify_number] = pGattc_char_node_descr;
ESP_LOGI(GATTC_TAG,"need_notify_number=%d\n",need_notify_number);
ESP_LOGI(GATTC_TAG,"- srvc_id = 0x%04x, char_id = 0x%04x \n", notify_char_p[need_notify_number].srvc_id.id.uuid.uuid.uuid16, notify_char_p[need_notify_number].char_id.uuid.uuid.uuid16);
need_notify_number++;
}
esp_ble_gattc_get_descriptor(spp_gattc_if, temp_gattc_char_p1->conn_id, &temp_gattc_char_p1->srvc_id, &temp_gattc_char_p1->char_id, &pGattc_char_node_descr->descr_id);
}
static void notify_event_handler(esp_ble_gattc_cb_param_t * p_data)
{
uint8_t gattc_srv_index_for_port = 0;
uint8_t gattc_char_index_for_port = 0;
temp_srv_p = pAtGattcSrvHead.pfirst;
while(temp_srv_p != NULL){
if(temp_srv_p->srvc_id.id.uuid.uuid.uuid16 == p_data->notify.srvc_id.id.uuid.uuid.uuid16){
gattc_srv_index_for_port = temp_srv_p->index;
pGattcCharHead = temp_srv_p->gattc_srv_char_head;
if(pGattcCharHead != NULL){
notify_char_pp = pGattcCharHead->pfirst;
while(notify_char_pp != NULL){
if(notify_char_pp->char_id.uuid.uuid.uuid16== p_data->notify.char_id.uuid.uuid.uuid16){
gattc_char_index_for_port = notify_char_pp->index;
}
notify_char_pp = notify_char_pp->next;
}
}
}
temp_srv_p = temp_srv_p->next;
}
if(p_data->notify.is_notify == true){
ESP_LOGI(GATTC_TAG,"+NOTIFY:%d,%d,%d,",gattc_srv_index_for_port,gattc_char_index_for_port,p_data->notify.value_len);
}else{
ESP_LOGI(GATTC_TAG,"+INDICATE:%d,%d,%d,",gattc_srv_index_for_port,gattc_char_index_for_port,p_data->notify.value_len);
}
if((gattc_srv_index_for_port == SPP_SRV_INDEX)&&(gattc_char_index_for_port == SPP_DATA_NTFY_CHAR_INDEX)){
#ifdef SPP_DEBUG_MODE
esp_log_buffer_char(GATTC_TAG, (char *)p_data->notify.value, p_data->notify.value_len);
#else
if((p_data->notify.value[0] == '#')&&(p_data->notify.value[1] == '#')){
if((++notify_value_count) != p_data->notify.value[3]){
if(notify_value_p != NULL){
free(notify_value_p);
}
notify_value_count = 0;
notify_value_p = NULL;
notify_value_offset = 0;
ESP_LOGE(GATTC_TAG,"notify value count is not continuous,%s\n",__func__);
return;
}
if(p_data->notify.value[3] == 1){
notify_value_p = (char *)malloc(((spp_mtu_size-7)*(p_data->notify.value[2]))*sizeof(char));
if(notify_value_p == NULL){
ESP_LOGE(GATTC_TAG, "malloc failed,%s L#%d\n",__func__,__LINE__);
notify_value_count = 0;
return;
}
memcpy((notify_value_p + notify_value_offset),(p_data->notify.value + 4),(p_data->notify.value_len - 4));
if(p_data->notify.value[2] == p_data->notify.value[3]){
uart_write_bytes(UART_NUM_0, (char *)(notify_value_p), (p_data->notify.value_len - 4 + notify_value_offset));
free(notify_value_p);
notify_value_p = NULL;
notify_value_offset = 0;
return;
}
notify_value_offset += (p_data->notify.value_len - 4);
}else if(p_data->notify.value[3] <= p_data->notify.value[2]){
memcpy((notify_value_p + notify_value_offset),(p_data->notify.value + 4),(p_data->notify.value_len - 4));
if(p_data->notify.value[3] == p_data->notify.value[2]){
uart_write_bytes(UART_NUM_0, (char *)(notify_value_p), (p_data->notify.value_len - 4 + notify_value_offset));
free(notify_value_p);
notify_value_count = 0;
notify_value_p = NULL;
notify_value_offset = 0;
return;
}
notify_value_offset += (p_data->notify.value_len - 4);
}
}else{
uart_write_bytes(UART_NUM_0, (char *)(p_data->notify.value), p_data->notify.value_len);
}
#endif
}else if((gattc_srv_index_for_port == SPP_SRV_INDEX)&&(gattc_char_index_for_port == SPP_STATUS_CHAR_INDEX)){
esp_log_buffer_char(GATTC_TAG, (char *)p_data->notify.value, p_data->notify.value_len);
//TODO:server notify status characteristic
}else{
esp_log_buffer_char(GATTC_TAG, (char *)p_data->notify.value, p_data->notify.value_len);
}
}
static void read_event_handler(esp_ble_gattc_cb_param_t * p_data)
{
uint8_t gattc_srv_index_for_port = 0;
uint8_t gattc_char_index_for_port = 0;
temp_srv_p = pAtGattcSrvHead.pfirst;
while(temp_srv_p != NULL){
if(temp_srv_p->srvc_id.id.uuid.uuid.uuid16 == p_data->notify.srvc_id.id.uuid.uuid.uuid16){
gattc_srv_index_for_port = temp_srv_p->index;
pGattcCharHead = temp_srv_p->gattc_srv_char_head;
if(pGattcCharHead != NULL){
notify_char_pp = pGattcCharHead->pfirst;
while(notify_char_pp != NULL){
if(notify_char_pp->char_id.uuid.uuid.uuid16== p_data->notify.char_id.uuid.uuid.uuid16){
gattc_char_index_for_port = notify_char_pp->index;
}
notify_char_pp = notify_char_pp->next;
}
}
}
temp_srv_p = temp_srv_p->next;
}
if((gattc_srv_index_for_port == SPP_SRV_INDEX)&&(gattc_char_index_for_port == SPP_STATUS_CHAR_INDEX)){
//TODO: read status characteristic
}
}
static void printf_char_and_descr(uint8_t srv_index)
{
spp_ble_gattc_char_t * temp_gattc_char_p = NULL;
spp_ble_gattc_char_descr_t * temp_gattc_char_descr_p = NULL;
temp_srv_p = pAtGattcSrvHead.pfirst;
if(temp_srv_p == NULL){
ESP_LOGE(GATTC_TAG, "srv = NULL\n");
}
while(--srv_index){
temp_srv_p = temp_srv_p->next;
if(temp_srv_p == NULL){
ESP_LOGE(GATTC_TAG, "srv = NULL\n");
}
}
temp_gattc_char_p = temp_srv_p->gattc_srv_char_head->pfirst;
while(temp_gattc_char_p != NULL){
ESP_LOGI(GATTC_TAG,"+CHAR:%d,%d,UUID:0x%04x",temp_srv_p->index, temp_gattc_char_p->index,temp_gattc_char_p->char_id.uuid.uuid.uuid16);
temp_gattc_char_descr_p = temp_gattc_char_p->char_descr;
while(temp_gattc_char_descr_p != NULL){
ESP_LOGI(GATTC_TAG,"+DESC:%d,%d,%d,UUID:0x%04x",temp_srv_p->index, temp_gattc_char_p->index,temp_gattc_char_descr_p->char_descr_index,temp_gattc_char_descr_p->descr_id.uuid.uuid.uuid16);
temp_gattc_char_descr_p = temp_gattc_char_descr_p->next;
}
temp_gattc_char_p = temp_gattc_char_p->next;
}
return ;
}
static void free_gattc_srv_db(void)
{
spp_ble_gattc_srv_t * temp_service_p = NULL , * temp_service_pp = NULL;
spp_ble_gattc_char_head * temp_srv_char_head_p = NULL;
spp_ble_gattc_char_t * temp_gattc_char_node_p = NULL , *temp_gattc_char_node_pp =NULL;
spp_ble_gattc_char_descr_t * temp_gattc_char_descr_node_p = NULL,* temp_gattc_char_descr_node_pp = NULL;
temp_service_p = pAtGattcSrvHead.pfirst;
while(temp_service_p != NULL){
temp_srv_char_head_p = temp_service_p->gattc_srv_char_head;
temp_gattc_char_node_p = temp_srv_char_head_p->pfirst;
while(temp_gattc_char_node_p != NULL){
temp_gattc_char_node_pp = temp_gattc_char_node_p;
temp_gattc_char_descr_node_p = temp_gattc_char_node_pp->char_descr;
while(temp_gattc_char_descr_node_p != NULL){
temp_gattc_char_descr_node_pp = temp_gattc_char_descr_node_p;
temp_gattc_char_descr_node_p = temp_gattc_char_descr_node_p->next;
free(temp_gattc_char_descr_node_pp);
}
temp_gattc_char_node_p = temp_gattc_char_node_p->next;
free(temp_gattc_char_node_pp);
}
free(temp_srv_char_head_p);
temp_service_pp = temp_service_p;
temp_service_p = temp_service_p->next;
free(temp_service_pp);
}
pAtGattcSrvHead.len = 0;
pAtGattcSrvHead.pfirst = NULL;
pAtGattcSrvHead.plast = NULL;
is_connect = false;
spp_conn_id = 0;
spp_mtu_size = 23;
cmd = 0;
wr_descr_ccc_num = 0;
spp_gattc_if = 0xff;
need_notify_number = 0;
char_descr_index_count = 0;
notify_value_p = NULL;
notify_value_offset = 0;
notify_value_count = 0;
}
static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
uint8_t *adv_name = NULL;
uint8_t adv_name_len = 0;
switch(event){
case ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT: {
if(param->scan_param_cmpl.status != ESP_BT_STATUS_SUCCESS){
ESP_LOGE(GATTC_TAG, "Scan param set failed");
break;
}
//the unit of the duration is second
uint32_t duration = 0xFFFF;
ESP_LOGE(GATTC_TAG, "Enable Ble Scan:during time 0x%04X minutes.",duration);
esp_ble_gap_start_scanning(duration);
break;
}
case ESP_GAP_BLE_SCAN_START_COMPLETE_EVT:
//scan start complete event to indicate scan start successfully or failed
if (param->scan_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
ESP_LOGE(GATTC_TAG, "Scan start failed");
break;
}
ESP_LOGI(GATTC_TAG, "Scan start successed");
break;
case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT:
if (param->scan_stop_cmpl.status != ESP_BT_STATUS_SUCCESS) {
ESP_LOGE(GATTC_TAG, "Scan stop failed");
break;
}
ESP_LOGI(GATTC_TAG, "Scan stop successed");
if (is_connect == false) {
ESP_LOGI(GATTC_TAG, "Connect to the remote device.");
esp_ble_gattc_open(gl_profile_tab[PROFILE_APP_ID].gattc_if, scan_rst.scan_rst.bda, true);
}
break;
case ESP_GAP_BLE_SCAN_RESULT_EVT: {
esp_ble_gap_cb_param_t *scan_result = (esp_ble_gap_cb_param_t *)param;
switch (scan_result->scan_rst.search_evt) {
case ESP_GAP_SEARCH_INQ_RES_EVT:
esp_log_buffer_hex(GATTC_TAG, scan_result->scan_rst.bda, 6);
ESP_LOGI(GATTC_TAG, "Searched Adv Data Len %d, Scan Response Len %d", scan_result->scan_rst.adv_data_len, scan_result->scan_rst.scan_rsp_len);
adv_name = esp_ble_resolve_adv_data(scan_result->scan_rst.ble_adv,ESP_BLE_AD_TYPE_NAME_CMPL, &adv_name_len);
ESP_LOGI(GATTC_TAG, "Searched Device Name Len %d", adv_name_len);
esp_log_buffer_char(GATTC_TAG, adv_name, adv_name_len);
ESP_LOGI(GATTC_TAG, "\n");
if (adv_name != NULL) {
if ( strncmp((char *)adv_name, device_name, adv_name_len) == 0) {
memcpy(&(scan_rst), scan_result, sizeof(esp_ble_gap_cb_param_t));
esp_ble_gap_stop_scanning();
}
}
break;
case ESP_GAP_SEARCH_INQ_CMPL_EVT:
break;
default:
break;
}
break;
}
case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS){
ESP_LOGE(GATTC_TAG, "Adv stop failed");
}else {
ESP_LOGI(GATTC_TAG, "Stop adv successfully");
}
break;
default:
break;
}
}
static void esp_gattc_cb(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)
{
ESP_LOGI(GATTC_TAG, "EVT %d, gattc if %d", event, gattc_if);
/* If event is register event, store the gattc_if for each profile */
if (event == ESP_GATTC_REG_EVT) {
if (param->reg.status == ESP_GATT_OK) {
gl_profile_tab[param->reg.app_id].gattc_if = gattc_if;
} else {
ESP_LOGI(GATTC_TAG, "Reg app failed, app_id %04x, status %d",param->reg.app_id,param->reg.status);
return;
}
}
/* If the gattc_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 (gattc_if == ESP_GATT_IF_NONE || /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
gattc_if == gl_profile_tab[idx].gattc_if) {
if (gl_profile_tab[idx].gattc_cb) {
gl_profile_tab[idx].gattc_cb(event, gattc_if, param);
}
}
}
} while (0);
}
static void gattc_profile_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)
{
esp_ble_gattc_cb_param_t *p_data = (esp_ble_gattc_cb_param_t *)param;
switch (event) {
case ESP_GATTC_REG_EVT:
ESP_LOGE(GATTC_TAG, "REG EVT, set scan params");
esp_ble_gap_set_scan_params(&ble_scan_params);
break;
case ESP_GATTC_CONNECT_EVT:
if(p_data->connect.status != ESP_GATT_OK){
ESP_LOGI(GATTC_TAG, "connect fail, status = %d", p_data->connect.status);
break;
}
spp_gattc_if = gattc_if;
is_connect = true;
spp_conn_id = p_data->connect.conn_id;
memcpy(gl_profile_tab[PROFILE_APP_ID].remote_bda, p_data->connect.remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGI(GATTC_TAG, "ESP_GATTC_CONNECT_EVT: conn_id=%d, gatt_if = %d, status =%d", spp_conn_id, gattc_if, p_data->connect.status);
ESP_LOGI(GATTC_TAG, "REMOTE BDA:");
esp_log_buffer_hex(GATTC_TAG, gl_profile_tab[PROFILE_APP_ID].remote_bda, sizeof(esp_bd_addr_t));
esp_ble_gattc_search_service(gattc_if, spp_conn_id, NULL);
break;
case ESP_GATTC_DISCONNECT_EVT:
ESP_LOGI(GATTC_TAG, "disconnect , status = %d", p_data->disconnect.status);
free_gattc_srv_db();
esp_ble_gap_start_scanning(0xffff);
break;
case ESP_GATTC_SEARCH_RES_EVT:
if((p_data->search_res.srvc_id.id.uuid.len == ESP_UUID_LEN_16)&&(p_data->search_res.srvc_id.id.uuid.uuid.uuid16 == 0x1800)){
ESP_LOGI(GATTC_TAG, "uuid == 0x1800\n");
break;
}
if((p_data->search_res.srvc_id.id.uuid.len == ESP_UUID_LEN_16)&&(p_data->search_res.srvc_id.id.uuid.uuid.uuid16 == 0x1801)){
ESP_LOGI(GATTC_TAG, "uuid == 0x1801\n");
break;
}
store_srv_info(p_data);
break;
case ESP_GATTC_SEARCH_CMPL_EVT:
ESP_LOGI(GATTC_TAG, "SEARCH_CMPL: conn_id = %x, status %d", spp_conn_id, p_data->search_cmpl.status);
esp_ble_gattc_config_mtu(gattc_if,spp_conn_id, 200);
break;
case ESP_GATTC_GET_CHAR_EVT:
if (p_data->get_char.status != ESP_GATT_OK) {
printf_char_and_descr(SPP_SRV_INDEX);
xQueueSend(cmd_reg_queue,&cmd,10/portTICK_PERIOD_MS);
cmd++;
break;
}
store_char_info(p_data);
break;
case ESP_GATTC_GET_DESCR_EVT:
if (p_data->get_descr.status != ESP_GATT_OK) {
char_descr_index_count = 0;
esp_ble_gattc_get_characteristic(spp_gattc_if, temp_srv_p->conn_id, &temp_srv_p->srvc_id, &temp_gattc_char_p1->char_id);
break;
}
store_desc_info(p_data);
break;
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
ESP_LOGI(GATTC_TAG,"\nwr_descr_cmd = %d-- srvc_id = 0x%04x, char_id = 0x%04x, descr_id = 0x%04x \n",wr_descr_ccc_num , notify_char_p[wr_descr_ccc_num].srvc_id.id.uuid.uuid.uuid16, notify_char_p[wr_descr_ccc_num].char_id.uuid.uuid.uuid16,notify_char_descr_p[wr_descr_ccc_num]->descr_id.uuid.uuid.uuid16);
uint16_t notify_en = 1;
esp_ble_gattc_write_char_descr(
spp_gattc_if,
notify_char_p[wr_descr_ccc_num].conn_id,
&(notify_char_p[wr_descr_ccc_num].srvc_id),
&(notify_char_p[wr_descr_ccc_num].char_id),
&notify_char_descr_p[wr_descr_ccc_num]->descr_id,
sizeof(notify_en),
(uint8_t *)&notify_en,
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
wr_descr_ccc_num++;
break;
}
case ESP_GATTC_NOTIFY_EVT:
ESP_LOGI(GATTC_TAG,"ESP_GATTC_NOTIFY_EVT\n");
notify_event_handler(p_data);
break;
case ESP_GATTC_READ_CHAR_EVT:
ESP_LOGI(GATTC_TAG,"ESP_GATTC_READ_CHAR_EVT\n");
read_event_handler(p_data);
break;
case ESP_GATTC_WRITE_CHAR_EVT:
ESP_LOGI(GATTC_TAG,"ESP_GATTC_WRITE_CHAR_EVT:status=%d,srvc_uuid = 0x%04x, char_uuid = 0x%04x, descr_uuid=0x%04x \n",p_data->write.status , p_data->write.srvc_id.id.uuid.uuid.uuid16, p_data->write.char_id.uuid.uuid.uuid16, p_data->write.descr_id.uuid.uuid.uuid16);
if(param->write.status == ESP_GATT_OK){
if(param->write.char_id.uuid.uuid.uuid16 == 0xABF1){
future_ready(*btc_main_get_future_p(BTC_MAIN_ENABLE_FUTURE), FUTURE_SUCCESS);
}
}
break;
case ESP_GATTC_PREP_WRITE_EVT:
break;
case ESP_GATTC_EXEC_EVT:
break;
case ESP_GATTC_WRITE_DESCR_EVT:
ESP_LOGI(GATTC_TAG,"ESP_GATTC_WRITE_DESCR_EVT: status =%d,srvc_uuid = 0x%04x, char_uuid = 0x%04x, descr_uuid=0x%04x \n",p_data->write.status,p_data->write.srvc_id.id.uuid.uuid.uuid16, p_data->write.char_id.uuid.uuid.uuid16, p_data->write.descr_id.uuid.uuid.uuid16);
xQueueSend(cmd_reg_queue,&cmd,10/portTICK_PERIOD_MS);
cmd++;
break;
case ESP_GATTC_CFG_MTU_EVT:
if(p_data->cfg_mtu.status != ESP_OK){
break;
}
ESP_LOGI(GATTC_TAG,"+MTU:%d\n", p_data->cfg_mtu.mtu);
spp_mtu_size = p_data->cfg_mtu.mtu;
print_srv_node();
get_char_and_descr();
break;
case ESP_GATTC_SRVC_CHG_EVT:
break;
default:
break;
}
}
void spp_client_reg_task(void* arg)
{
uint16_t cmd_id;
for(;;) {
vTaskDelay(100 / portTICK_PERIOD_MS);
if(xQueueReceive(cmd_reg_queue, &cmd_id, portMAX_DELAY)) {
if(0 == cmd_id){
esp_ble_gattc_register_for_notify(spp_gattc_if, gl_profile_tab[PROFILE_APP_ID].remote_bda ,&(notify_char_p[cmd_id].srvc_id), &(notify_char_p[cmd_id].char_id));
ESP_LOGI(GATTC_TAG,"No.%d-- srvc_id = 0x%04x, char_id = 0x%04x \n",cmd_id, notify_char_p[cmd_id].srvc_id.id.uuid.uuid.uuid16, notify_char_p[cmd_id].char_id.uuid.uuid.uuid16);
}else if(1 == cmd_id){
esp_ble_gattc_register_for_notify(spp_gattc_if, gl_profile_tab[PROFILE_APP_ID].remote_bda ,&(notify_char_p[cmd_id].srvc_id), &(notify_char_p[cmd_id].char_id));
ESP_LOGI(GATTC_TAG,"No.%d-- srvc_id = 0x%04x, char_id = 0x%04x \n",cmd_id, notify_char_p[cmd_id].srvc_id.id.uuid.uuid.uuid16, notify_char_p[cmd_id].char_id.uuid.uuid.uuid16);
}else if(2 == cmd_id){
esp_ble_gattc_register_for_notify(spp_gattc_if, gl_profile_tab[PROFILE_APP_ID].remote_bda ,&(notify_char_p[cmd_id].srvc_id), &(notify_char_p[cmd_id].char_id));
ESP_LOGI(GATTC_TAG,"No.%d-- srvc_id = 0x%04x, char_id = 0x%04x \n",cmd_id, notify_char_p[cmd_id].srvc_id.id.uuid.uuid.uuid16, notify_char_p[cmd_id].char_id.uuid.uuid.uuid16);
}
#ifdef SUPPORT_HEARTBEAT
else if(3 == cmd_id){
xQueueSend(cmd_heartbeat_queue,&cmd,10/portTICK_PERIOD_MS);
}
#endif
}
}
}
#ifdef SUPPORT_HEARTBEAT
void spp_heart_beat_task(void * arg)
{
uint16_t cmd_id;
for(;;) {
vTaskDelay(50 / portTICK_PERIOD_MS);
if(xQueueReceive(cmd_heartbeat_queue, &cmd_id, portMAX_DELAY)) {
while(1){
if(is_connect == true){
Characteristic_Wr(SPP_SRV_INDEX,SPP_HEARTBEAT_CHAR_INDEX,(char *)heartbeat_s,sizeof(heartbeat_s));
vTaskDelay(5000 / portTICK_PERIOD_MS);
}else{
ESP_LOGI(GATTC_TAG,"disconnect\n");
break;
}
}
}
}
}
#endif
void spp_client_read_task(void * arg)
{
uint16_t cmd_id;
int32_t srv_index = SPP_SRV_INDEX, char_index = SPP_STATUS_CHAR_INDEX;
for(;;) {
vTaskDelay(50 / portTICK_PERIOD_MS);
if(xQueueReceive(cmd_read_queue, &cmd_id, portMAX_DELAY)) {
if(is_connect == true){
Characteristic_Rd(srv_index,char_index);
}else{
ESP_LOGI(GATTC_TAG,"disconnect\n");
}
}
}
}
void ble_client_appRegister(void)
{
esp_err_t status;
ESP_LOGI(GATTC_TAG, "register callback");
//register the scan callback function to the gap module
if ((status = esp_ble_gap_register_callback(esp_gap_cb)) != ESP_OK) {
ESP_LOGE(GATTC_TAG, "gap register error, error code = %x", status);
return;
}
//register the callback function to the gattc module
if ((status = esp_ble_gattc_register_callback(esp_gattc_cb)) != ESP_OK) {
ESP_LOGE(GATTC_TAG, "gattc register error, error code = %x", status);
return;
}
esp_ble_gattc_app_register(PROFILE_APP_ID);
cmd_reg_queue = xQueueCreate(10, sizeof(uint32_t));
xTaskCreate(spp_client_reg_task, "spp_client_reg_task", 2048, NULL, 10, NULL);
#ifdef SUPPORT_HEARTBEAT
cmd_heartbeat_queue = xQueueCreate(10, sizeof(uint32_t));
xTaskCreate(spp_heart_beat_task, "spp_heart_beat_task", 2048, NULL, 10, NULL);
#endif
cmd_read_queue = xQueueCreate(10, sizeof(uint32_t));
xTaskCreate(spp_client_read_task, "spp_client_read_task", 2048, NULL, 10, NULL);
}
void uart_task(void *pvParameters)
{
uart_event_t event;
for (;;) {
//Waiting for UART event.
if (xQueueReceive(spp_uart_queue, (void * )&event, (portTickType)portMAX_DELAY)) {
switch (event.type) {
//Event of UART receving data
case UART_DATA:
if (event.size) {
uint8_t * temp = NULL;
temp = (uint8_t *)malloc(sizeof(uint8_t)*event.size);
if(temp == NULL){
ESP_LOGE(GATTC_TAG, "malloc failed,%s L#%d\n",__func__,__LINE__);
break;
}
memset(temp,0x0,event.size);
uart_read_bytes(UART_NUM_0,temp,event.size,portMAX_DELAY);
Characteristic_Wr(SPP_SRV_INDEX,SPP_DATA_RECV_CHAR_INDEX,(char *)temp,event.size);
free(temp);
}
break;
default:
break;
}
}
}
vTaskDelete(NULL);
}
static void spp_uart_init(void)
{
uart_config_t uart_config = {
.baud_rate = 115200,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_RTS,
.rx_flow_ctrl_thresh = 122,
};
//Set UART parameters
uart_param_config(UART_NUM_0, &uart_config);
//Set UART pins
uart_set_pin(UART_NUM_0, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
//Install UART driver, and get the queue.
uart_driver_install(UART_NUM_0, 4096, 8192, 10,&spp_uart_queue,0);
xTaskCreate(uart_task, "uTask", 2048, (void*)UART_NUM_0, 8, NULL);
}
void app_main()
{
esp_err_t ret;
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
nvs_flash_init();
ret = esp_bt_controller_init(&bt_cfg);
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable controller failed\n", __func__);
return;
}
ret = esp_bt_controller_enable(ESP_BT_MODE_BTDM);
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable controller failed\n", __func__);
return;
}
ESP_LOGI(GATTC_TAG, "%s init bluetooth\n", __func__);
ret = esp_bluedroid_init();
if (ret) {
ESP_LOGE(GATTC_TAG, "%s init bluetooth failed\n", __func__);
return;
}
ret = esp_bluedroid_enable();
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable bluetooth failed\n", __func__);
return;
}
ble_client_appRegister();
spp_uart_init();
}
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