mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
4ab6aafecc
Added support for multiple profile connection in NimBLE SPP example. Closes IDFGH-7001
444 lines
14 KiB
C
444 lines
14 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Unlicense OR CC0-1.0
|
|
*/
|
|
|
|
#include "esp_log.h"
|
|
#include "nvs_flash.h"
|
|
/* BLE */
|
|
#include "esp_nimble_hci.h"
|
|
#include "nimble/nimble_port.h"
|
|
#include "nimble/nimble_port_freertos.h"
|
|
#include "host/ble_hs.h"
|
|
#include "host/util/util.h"
|
|
#include "console/console.h"
|
|
#include "services/gap/ble_svc_gap.h"
|
|
#include "ble_spp_server.h"
|
|
#include "driver/uart.h"
|
|
|
|
static const char *tag = "NimBLE_SPP_BLE_PRPH";
|
|
static int ble_spp_server_gap_event(struct ble_gap_event *event, void *arg);
|
|
static uint8_t own_addr_type;
|
|
int gatt_svr_register(void);
|
|
QueueHandle_t spp_common_uart_queue = NULL;
|
|
static bool is_connect = false;
|
|
uint16_t connection_handle;
|
|
static uint16_t ble_svc_gatt_read_val_handle,ble_spp_svc_gatt_read_val_handle;
|
|
|
|
/* 16 Bit Alert Notification Service UUID */
|
|
#define BLE_SVC_ANS_UUID16 0x1811
|
|
|
|
/* 16 Bit Alert Notification Service Characteristic UUIDs */
|
|
#define BLE_SVC_ANS_CHR_UUID16_SUP_NEW_ALERT_CAT 0x2a47
|
|
|
|
/* 16 Bit SPP Service UUID */
|
|
#define BLE_SVC_SPP_UUID16 0xABF0
|
|
|
|
/* 16 Bit SPP Service Characteristic UUID */
|
|
#define BLE_SVC_SPP_CHR_UUID16 0xABF1
|
|
|
|
void ble_store_config_init(void);
|
|
|
|
/**
|
|
* Logs information about a connection to the console.
|
|
*/
|
|
static void
|
|
ble_spp_server_print_conn_desc(struct ble_gap_conn_desc *desc)
|
|
{
|
|
MODLOG_DFLT(INFO, "handle=%d our_ota_addr_type=%d our_ota_addr=",
|
|
desc->conn_handle, desc->our_ota_addr.type);
|
|
print_addr(desc->our_ota_addr.val);
|
|
MODLOG_DFLT(INFO, " our_id_addr_type=%d our_id_addr=",
|
|
desc->our_id_addr.type);
|
|
print_addr(desc->our_id_addr.val);
|
|
MODLOG_DFLT(INFO, " peer_ota_addr_type=%d peer_ota_addr=",
|
|
desc->peer_ota_addr.type);
|
|
print_addr(desc->peer_ota_addr.val);
|
|
MODLOG_DFLT(INFO, " peer_id_addr_type=%d peer_id_addr=",
|
|
desc->peer_id_addr.type);
|
|
print_addr(desc->peer_id_addr.val);
|
|
MODLOG_DFLT(INFO, " conn_itvl=%d conn_latency=%d supervision_timeout=%d "
|
|
"encrypted=%d authenticated=%d bonded=%d\n",
|
|
desc->conn_itvl, desc->conn_latency,
|
|
desc->supervision_timeout,
|
|
desc->sec_state.encrypted,
|
|
desc->sec_state.authenticated,
|
|
desc->sec_state.bonded);
|
|
}
|
|
|
|
/**
|
|
* Enables advertising with the following parameters:
|
|
* o General discoverable mode.
|
|
* o Undirected connectable mode.
|
|
*/
|
|
static void
|
|
ble_spp_server_advertise(void)
|
|
{
|
|
struct ble_gap_adv_params adv_params;
|
|
struct ble_hs_adv_fields fields;
|
|
const char *name;
|
|
int rc;
|
|
|
|
/**
|
|
* Set the advertisement data included in our advertisements:
|
|
* o Flags (indicates advertisement type and other general info).
|
|
* o Advertising tx power.
|
|
* o Device name.
|
|
* o 16-bit service UUIDs (alert notifications).
|
|
*/
|
|
|
|
memset(&fields, 0, sizeof fields);
|
|
|
|
/* Advertise two flags:
|
|
* o Discoverability in forthcoming advertisement (general)
|
|
* o BLE-only (BR/EDR unsupported).
|
|
*/
|
|
fields.flags = BLE_HS_ADV_F_DISC_GEN |
|
|
BLE_HS_ADV_F_BREDR_UNSUP;
|
|
|
|
/* Indicate that the TX power level field should be included; have the
|
|
* stack fill this value automatically. This is done by assigning the
|
|
* special value BLE_HS_ADV_TX_PWR_LVL_AUTO.
|
|
*/
|
|
fields.tx_pwr_lvl_is_present = 1;
|
|
fields.tx_pwr_lvl = BLE_HS_ADV_TX_PWR_LVL_AUTO;
|
|
|
|
name = ble_svc_gap_device_name();
|
|
fields.name = (uint8_t *)name;
|
|
fields.name_len = strlen(name);
|
|
fields.name_is_complete = 1;
|
|
|
|
fields.uuids16 = (ble_uuid16_t[]) {
|
|
BLE_UUID16_INIT(GATT_SVR_SVC_ALERT_UUID)
|
|
};
|
|
fields.num_uuids16 = 1;
|
|
fields.uuids16_is_complete = 1;
|
|
|
|
rc = ble_gap_adv_set_fields(&fields);
|
|
if (rc != 0) {
|
|
MODLOG_DFLT(ERROR, "error setting advertisement data; rc=%d\n", rc);
|
|
return;
|
|
}
|
|
|
|
/* Begin advertising. */
|
|
memset(&adv_params, 0, sizeof adv_params);
|
|
adv_params.conn_mode = BLE_GAP_CONN_MODE_UND;
|
|
adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
|
|
rc = ble_gap_adv_start(own_addr_type, NULL, BLE_HS_FOREVER,
|
|
&adv_params, ble_spp_server_gap_event, NULL);
|
|
if (rc != 0) {
|
|
MODLOG_DFLT(ERROR, "error enabling advertisement; rc=%d\n", rc);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The nimble host executes this callback when a GAP event occurs. The
|
|
* application associates a GAP event callback with each connection that forms.
|
|
* ble_spp_server uses the same callback for all connections.
|
|
*
|
|
* @param event The type of event being signalled.
|
|
* @param ctxt Various information pertaining to the event.
|
|
* @param arg Application-specified argument; unused by
|
|
* ble_spp_server.
|
|
*
|
|
* @return 0 if the application successfully handled the
|
|
* event; nonzero on failure. The semantics
|
|
* of the return code is specific to the
|
|
* particular GAP event being signalled.
|
|
*/
|
|
static int
|
|
ble_spp_server_gap_event(struct ble_gap_event *event, void *arg)
|
|
{
|
|
struct ble_gap_conn_desc desc;
|
|
int rc;
|
|
|
|
switch (event->type) {
|
|
case BLE_GAP_EVENT_CONNECT:
|
|
/* A new connection was established or a connection attempt failed. */
|
|
MODLOG_DFLT(INFO, "connection %s; status=%d ",
|
|
event->connect.status == 0 ? "established" : "failed",
|
|
event->connect.status);
|
|
if (event->connect.status == 0) {
|
|
rc = ble_gap_conn_find(event->connect.conn_handle, &desc);
|
|
assert(rc == 0);
|
|
ble_spp_server_print_conn_desc(&desc);
|
|
is_connect=true;
|
|
connection_handle = event->connect.conn_handle;
|
|
}
|
|
MODLOG_DFLT(INFO, "\n");
|
|
if (event->connect.status != 0) {
|
|
/* Connection failed; resume advertising. */
|
|
ble_spp_server_advertise();
|
|
}
|
|
return 0;
|
|
|
|
case BLE_GAP_EVENT_DISCONNECT:
|
|
MODLOG_DFLT(INFO, "disconnect; reason=%d ", event->disconnect.reason);
|
|
ble_spp_server_print_conn_desc(&event->disconnect.conn);
|
|
MODLOG_DFLT(INFO, "\n");
|
|
|
|
/* Connection terminated; resume advertising. */
|
|
ble_spp_server_advertise();
|
|
return 0;
|
|
|
|
case BLE_GAP_EVENT_CONN_UPDATE:
|
|
/* The central has updated the connection parameters. */
|
|
MODLOG_DFLT(INFO, "connection updated; status=%d ",
|
|
event->conn_update.status);
|
|
rc = ble_gap_conn_find(event->conn_update.conn_handle, &desc);
|
|
assert(rc == 0);
|
|
ble_spp_server_print_conn_desc(&desc);
|
|
MODLOG_DFLT(INFO, "\n");
|
|
return 0;
|
|
|
|
case BLE_GAP_EVENT_ADV_COMPLETE:
|
|
MODLOG_DFLT(INFO, "advertise complete; reason=%d",
|
|
event->adv_complete.reason);
|
|
ble_spp_server_advertise();
|
|
return 0;
|
|
|
|
case BLE_GAP_EVENT_MTU:
|
|
MODLOG_DFLT(INFO, "mtu update event; conn_handle=%d cid=%d mtu=%d\n",
|
|
event->mtu.conn_handle,
|
|
event->mtu.channel_id,
|
|
event->mtu.value);
|
|
return 0;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ble_spp_server_on_reset(int reason)
|
|
{
|
|
MODLOG_DFLT(ERROR, "Resetting state; reason=%d\n", reason);
|
|
}
|
|
|
|
static void
|
|
ble_spp_server_on_sync(void)
|
|
{
|
|
int rc;
|
|
|
|
rc = ble_hs_util_ensure_addr(0);
|
|
assert(rc == 0);
|
|
|
|
/* Figure out address to use while advertising (no privacy for now) */
|
|
rc = ble_hs_id_infer_auto(0, &own_addr_type);
|
|
if (rc != 0) {
|
|
MODLOG_DFLT(ERROR, "error determining address type; rc=%d\n", rc);
|
|
return;
|
|
}
|
|
|
|
/* Printing ADDR */
|
|
uint8_t addr_val[6] = {0};
|
|
rc = ble_hs_id_copy_addr(own_addr_type, addr_val, NULL);
|
|
|
|
MODLOG_DFLT(INFO, "Device Address: ");
|
|
print_addr(addr_val);
|
|
MODLOG_DFLT(INFO, "\n");
|
|
/* Begin advertising. */
|
|
ble_spp_server_advertise();
|
|
}
|
|
|
|
void ble_spp_server_host_task(void *param)
|
|
{
|
|
ESP_LOGI(tag, "BLE Host Task Started");
|
|
/* This function will return only when nimble_port_stop() is executed */
|
|
nimble_port_run();
|
|
|
|
nimble_port_freertos_deinit();
|
|
}
|
|
|
|
/* Callback function for custom service */
|
|
static int ble_svc_gatt_handler(uint16_t conn_handle, uint16_t attr_handle,struct ble_gatt_access_ctxt *ctxt, void *arg)
|
|
{
|
|
switch(ctxt->op){
|
|
case BLE_GATT_ACCESS_OP_READ_CHR:
|
|
ESP_LOGI(tag, "Callback for read");
|
|
break;
|
|
|
|
case BLE_GATT_ACCESS_OP_WRITE_CHR:
|
|
ESP_LOGI(tag,"Data received in write event,conn_handle = %x,attr_handle = %x",conn_handle,attr_handle);
|
|
break;
|
|
|
|
default:
|
|
ESP_LOGI(tag, "\nDefault Callback");
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Define new custom service */
|
|
static const struct ble_gatt_svc_def new_ble_svc_gatt_defs[] = {
|
|
{
|
|
/*** Service: GATT */
|
|
.type = BLE_GATT_SVC_TYPE_PRIMARY,
|
|
.uuid = BLE_UUID16_DECLARE(BLE_SVC_ANS_UUID16),
|
|
.characteristics = (struct ble_gatt_chr_def[]) { {
|
|
/* Support new alert category */
|
|
.uuid = BLE_UUID16_DECLARE(BLE_SVC_ANS_CHR_UUID16_SUP_NEW_ALERT_CAT),
|
|
.access_cb = ble_svc_gatt_handler,
|
|
.val_handle = &ble_svc_gatt_read_val_handle,
|
|
.flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_WRITE | BLE_GATT_CHR_F_NOTIFY | BLE_GATT_CHR_F_INDICATE,
|
|
},
|
|
{
|
|
0, /* No more characteristics */
|
|
}
|
|
},
|
|
},
|
|
{
|
|
/*** Service: SPP */
|
|
.type = BLE_GATT_SVC_TYPE_PRIMARY,
|
|
.uuid = BLE_UUID16_DECLARE(BLE_SVC_SPP_UUID16),
|
|
.characteristics = (struct ble_gatt_chr_def[]) { {
|
|
/* Support SPP service */
|
|
.uuid = BLE_UUID16_DECLARE(BLE_SVC_SPP_CHR_UUID16),
|
|
.access_cb = ble_svc_gatt_handler,
|
|
.val_handle = &ble_spp_svc_gatt_read_val_handle,
|
|
.flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_WRITE | BLE_GATT_CHR_F_NOTIFY | BLE_GATT_CHR_F_INDICATE,
|
|
},
|
|
{
|
|
0, /* No more characteristics */
|
|
}
|
|
},
|
|
},
|
|
{
|
|
0, /* No more services. */
|
|
},
|
|
};
|
|
|
|
int gatt_svr_register(void)
|
|
{
|
|
int rc=0;
|
|
|
|
rc = ble_gatts_count_cfg(new_ble_svc_gatt_defs);
|
|
|
|
if (rc != 0) {
|
|
return rc;
|
|
}
|
|
|
|
rc = ble_gatts_add_svcs(new_ble_svc_gatt_defs);
|
|
if (rc != 0) {
|
|
return rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
void ble_server_uart_task(void *pvParameters){
|
|
ESP_LOGI(tag,"BLE server UART_task started\n");
|
|
uart_event_t event;
|
|
int rc=0;
|
|
for (;;) {
|
|
//Waiting for UART event.
|
|
if (xQueueReceive(spp_common_uart_queue, (void * )&event, (TickType_t)portMAX_DELAY)) {
|
|
switch (event.type) {
|
|
//Event of UART receving data
|
|
case UART_DATA:
|
|
if (event.size && (is_connect == true)) {
|
|
static uint8_t ntf[1];
|
|
ntf[0] = 90;
|
|
struct os_mbuf *txom;
|
|
txom = ble_hs_mbuf_from_flat(ntf, sizeof(ntf));
|
|
rc = ble_gattc_notify_custom(connection_handle,ble_spp_svc_gatt_read_val_handle,txom);
|
|
if( rc == 0){
|
|
ESP_LOGI(tag,"Notification sent successfully");
|
|
}
|
|
else {
|
|
ESP_LOGI(tag,"Error in sending notification");
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
vTaskDelete(NULL);
|
|
}
|
|
static void ble_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,
|
|
.source_clk = UART_SCLK_DEFAULT,
|
|
};
|
|
//Install UART driver, and get the queue.
|
|
uart_driver_install(UART_NUM_0, 4096, 8192, 10,&spp_common_uart_queue,0);
|
|
//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);
|
|
xTaskCreate(ble_server_uart_task, "uTask", 4096, (void*)UART_NUM_0, 8, NULL);
|
|
}
|
|
|
|
|
|
void
|
|
app_main(void)
|
|
{
|
|
int rc;
|
|
|
|
/* Initialize NVS — it is used to store PHY calibration data */
|
|
esp_err_t ret = nvs_flash_init();
|
|
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
|
|
ESP_ERROR_CHECK(nvs_flash_erase());
|
|
ret = nvs_flash_init();
|
|
}
|
|
ESP_ERROR_CHECK(ret);
|
|
|
|
ESP_ERROR_CHECK(esp_nimble_hci_and_controller_init());
|
|
|
|
nimble_port_init();
|
|
|
|
/* Initialize uart driver and start uart task */
|
|
ble_spp_uart_init();
|
|
|
|
/* Initialize the NimBLE host configuration. */
|
|
ble_hs_cfg.reset_cb = ble_spp_server_on_reset;
|
|
ble_hs_cfg.sync_cb = ble_spp_server_on_sync;
|
|
ble_hs_cfg.gatts_register_cb = gatt_svr_register_cb;
|
|
ble_hs_cfg.store_status_cb = ble_store_util_status_rr;
|
|
|
|
ble_hs_cfg.sm_io_cap = CONFIG_EXAMPLE_IO_TYPE;
|
|
#ifdef CONFIG_EXAMPLE_BONDING
|
|
ble_hs_cfg.sm_bonding = 1;
|
|
#endif
|
|
#ifdef CONFIG_EXAMPLE_MITM
|
|
ble_hs_cfg.sm_mitm = 1;
|
|
#endif
|
|
#ifdef CONFIG_EXAMPLE_USE_SC
|
|
ble_hs_cfg.sm_sc = 1;
|
|
#else
|
|
ble_hs_cfg.sm_sc = 0;
|
|
#endif
|
|
#ifdef CONFIG_EXAMPLE_BONDING
|
|
ble_hs_cfg.sm_our_key_dist = 1;
|
|
ble_hs_cfg.sm_their_key_dist = 1;
|
|
#endif
|
|
|
|
|
|
rc = new_gatt_svr_init();
|
|
assert(rc == 0);
|
|
|
|
/* Register custom service */
|
|
rc = gatt_svr_register();
|
|
assert(rc == 0);
|
|
|
|
/* Set the default device name. */
|
|
rc = ble_svc_gap_device_name_set("nimble-ble-spp-svr");
|
|
assert(rc == 0);
|
|
|
|
/* XXX Need to have template for store */
|
|
ble_store_config_init();
|
|
|
|
nimble_port_freertos_init(ble_spp_server_host_task);
|
|
}
|