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Allow multiple bluetooth proxy connections (#3971)

This commit is contained in:
Jesse Hills 2022-11-02 23:02:33 +13:00 committed by GitHub
parent e7d236f939
commit 0e66c899ce
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
13 changed files with 601 additions and 349 deletions
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2
esphome/components/api/api_server.h
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@ -75,7 +75,7 @@ class APIServer : public Component, public Controller {
void send_homeassistant_service_call(const HomeassistantServiceResponse &call);
#ifdef USE_BLUETOOTH_PROXY
void send_bluetooth_le_advertisement(const BluetoothLEAdvertisementResponse &call);
void send_bluetooth_device_connection(uint64_t address, bool connected, uint16_t mtu, esp_err_t error = ESP_OK);
void send_bluetooth_device_connection(uint64_t address, bool connected, uint16_t mtu = 0, esp_err_t error = ESP_OK);
void send_bluetooth_connections_free(uint8_t free, uint8_t limit);
void send_bluetooth_gatt_read_response(const BluetoothGATTReadResponse &call);
void send_bluetooth_gatt_write_response(const BluetoothGATTWriteResponse &call);

6
esphome/components/ble_client/ble_client.cpp
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@ -47,11 +47,12 @@ void BLEClient::set_enabled(bool enabled) {
this->enabled = enabled;
}
void BLEClient::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t esp_gattc_if,
bool BLEClient::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t esp_gattc_if,
esp_ble_gattc_cb_param_t *param) {
bool all_established = this->all_nodes_established_();
BLEClientBase::gattc_event_handler(event, esp_gattc_if, param);
if (!BLEClientBase::gattc_event_handler(event, esp_gattc_if, param))
return false;
for (auto *node : this->nodes_)
node->gattc_event_handler(event, esp_gattc_if, param);
@ -62,6 +63,7 @@ void BLEClient::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t es
delete svc; // NOLINT(cppcoreguidelines-owning-memory)
this->services_.clear();
}
return true;
}
void BLEClient::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) {

2
esphome/components/ble_client/ble_client.h
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@ -50,7 +50,7 @@ class BLEClient : public BLEClientBase {
void dump_config() override;
void loop() override;
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
bool gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) override;
void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) override;

54
esphome/components/bluetooth_proxy/__init__.py
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@ -7,19 +7,56 @@ AUTO_LOAD = ["esp32_ble_client", "esp32_ble_tracker"]
DEPENDENCIES = ["api", "esp32"]
CODEOWNERS = ["@jesserockz"]
CONF_CONNECTIONS = "connections"
MAX_CONNECTIONS = 3
bluetooth_proxy_ns = cg.esphome_ns.namespace("bluetooth_proxy")
BluetoothProxy = bluetooth_proxy_ns.class_(
"BluetoothProxy", esp32_ble_client.BLEClientBase
"BluetoothProxy", esp32_ble_tracker.ESPBTDeviceListener, cg.Component
)
BluetoothConnection = bluetooth_proxy_ns.class_(
"BluetoothConnection", esp32_ble_client.BLEClientBase
)
CONFIG_SCHEMA = cv.Schema(
CONNECTION_SCHEMA = esp32_ble_tracker.ESP_BLE_DEVICE_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(BluetoothProxy),
cv.Optional(CONF_ACTIVE, default=False): cv.boolean,
cv.GenerateID(): cv.declare_id(BluetoothConnection),
}
).extend(esp32_ble_tracker.ESP_BLE_DEVICE_SCHEMA)
).extend(cv.COMPONENT_SCHEMA)
def validate_connections(config):
if CONF_CONNECTIONS in config:
if not config[CONF_ACTIVE]:
raise cv.Invalid(
"Connections can only be used if the proxy is set to active"
)
else:
if config[CONF_ACTIVE]:
conf = config.copy()
conf[CONF_CONNECTIONS] = [
CONNECTION_SCHEMA({}) for _ in range(MAX_CONNECTIONS)
]
return conf
return config
CONFIG_SCHEMA = cv.All(
cv.Schema(
{
cv.GenerateID(): cv.declare_id(BluetoothProxy),
cv.Optional(CONF_ACTIVE, default=False): cv.boolean,
cv.Optional(CONF_CONNECTIONS): cv.All(
cv.ensure_list(CONNECTION_SCHEMA),
cv.Length(min=1, max=MAX_CONNECTIONS),
),
}
)
.extend(esp32_ble_tracker.ESP_BLE_DEVICE_SCHEMA)
.extend(cv.COMPONENT_SCHEMA),
validate_connections,
)
async def to_code(config):
@ -27,7 +64,12 @@ async def to_code(config):
await cg.register_component(var, config)
cg.add(var.set_active(config[CONF_ACTIVE]))
await esp32_ble_tracker.register_ble_device(var, config)
await esp32_ble_tracker.register_client(var, config)
for connection_conf in config.get(CONF_CONNECTIONS, []):
connection_var = cg.new_Pvariable(connection_conf[CONF_ID])
await cg.register_component(connection_var, connection_conf)
cg.add(var.register_connection(connection_var))
await esp32_ble_tracker.register_client(connection_var, connection_conf)
cg.add_define("USE_BLUETOOTH_PROXY")

281
esphome/components/bluetooth_proxy/bluetooth_connection.cpp Normal file
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@ -0,0 +1,281 @@
#include "bluetooth_connection.h"
#include "esphome/components/api/api_server.h"
#include "esphome/core/helpers.h"
#include "esphome/core/log.h"
#ifdef USE_ESP32
#include "bluetooth_proxy.h"
namespace esphome {
namespace bluetooth_proxy {
static const char *const TAG = "bluetooth_proxy.connection";
bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) {
if (!BLEClientBase::gattc_event_handler(event, gattc_if, param))
return false;
switch (event) {
case ESP_GATTC_DISCONNECT_EVT: {
api::global_api_server->send_bluetooth_device_connection(this->address_, false, 0, param->disconnect.reason);
this->set_address(0);
api::global_api_server->send_bluetooth_connections_free(this->proxy_->get_bluetooth_connections_free(),
this->proxy_->get_bluetooth_connections_limit());
break;
}
case ESP_GATTC_OPEN_EVT: {
if (param->open.conn_id != this->conn_id_)
break;
if (param->open.status != ESP_GATT_OK && param->open.status != ESP_GATT_ALREADY_OPEN) {
api::global_api_server->send_bluetooth_device_connection(this->address_, false, 0, param->open.status);
this->set_address(0);
api::global_api_server->send_bluetooth_connections_free(this->proxy_->get_bluetooth_connections_free(),
this->proxy_->get_bluetooth_connections_limit());
}
break;
}
case ESP_GATTC_SEARCH_CMPL_EVT: {
if (param->search_cmpl.conn_id != this->conn_id_)
break;
api::global_api_server->send_bluetooth_device_connection(this->address_, true, this->mtu_);
api::global_api_server->send_bluetooth_connections_free(this->proxy_->get_bluetooth_connections_free(),
this->proxy_->get_bluetooth_connections_limit());
break;
}
case ESP_GATTC_READ_DESCR_EVT:
case ESP_GATTC_READ_CHAR_EVT: {
if (param->read.conn_id != this->conn_id_)
break;
if (param->read.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "[%d] [%s] Error reading char/descriptor at handle 0x%2X, status=%d", this->connection_index_,
this->address_str_.c_str(), param->read.handle, param->read.status);
api::global_api_server->send_bluetooth_gatt_error(this->address_, param->read.handle, param->read.status);
break;
}
api::BluetoothGATTReadResponse resp;
resp.address = this->address_;
resp.handle = param->read.handle;
resp.data.reserve(param->read.value_len);
for (uint16_t i = 0; i < param->read.value_len; i++) {
resp.data.push_back(param->read.value[i]);
}
api::global_api_server->send_bluetooth_gatt_read_response(resp);
break;
}
case ESP_GATTC_WRITE_CHAR_EVT:
case ESP_GATTC_WRITE_DESCR_EVT: {
if (param->write.conn_id != this->conn_id_)
break;
if (param->write.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "[%d] [%s] Error writing char/descriptor at handle 0x%2X, status=%d", this->connection_index_,
this->address_str_.c_str(), param->write.handle, param->write.status);
api::global_api_server->send_bluetooth_gatt_error(this->address_, param->write.handle, param->write.status);
break;
}
api::BluetoothGATTWriteResponse resp;
resp.address = this->address_;
resp.handle = param->write.handle;
api::global_api_server->send_bluetooth_gatt_write_response(resp);
break;
}
case ESP_GATTC_UNREG_FOR_NOTIFY_EVT: {
if (this->get_characteristic(param->unreg_for_notify.handle) == nullptr) // No conn_id in this event
break;
if (param->unreg_for_notify.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "[%d] [%s] Error unregistering notifications for handle 0x%2X, status=%d",
this->connection_index_, this->address_str_.c_str(), param->unreg_for_notify.handle,
param->unreg_for_notify.status);
api::global_api_server->send_bluetooth_gatt_error(this->address_, param->unreg_for_notify.handle,
param->unreg_for_notify.status);
break;
}
api::BluetoothGATTNotifyResponse resp;
resp.address = this->address_;
resp.handle = param->unreg_for_notify.handle;
api::global_api_server->send_bluetooth_gatt_notify_response(resp);
break;
}
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
if (this->get_characteristic(param->reg_for_notify.handle) == nullptr) // No conn_id in this event
break;
if (param->reg_for_notify.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "[%d] [%s] Error registering notifications for handle 0x%2X, status=%d", this->connection_index_,
this->address_str_.c_str(), param->reg_for_notify.handle, param->reg_for_notify.status);
api::global_api_server->send_bluetooth_gatt_error(this->address_, param->reg_for_notify.handle,
param->reg_for_notify.status);
break;
}
api::BluetoothGATTNotifyResponse resp;
resp.address = this->address_;
resp.handle = param->reg_for_notify.handle;
api::global_api_server->send_bluetooth_gatt_notify_response(resp);
break;
}
case ESP_GATTC_NOTIFY_EVT: {
if (param->notify.conn_id != this->conn_id_)
break;
ESP_LOGV(TAG, "[%d] [%s] ESP_GATTC_NOTIFY_EVT: handle=0x%2X", this->connection_index_, this->address_str_.c_str(),
param->notify.handle);
api::BluetoothGATTNotifyDataResponse resp;
resp.address = this->address_;
resp.handle = param->notify.handle;
resp.data.reserve(param->notify.value_len);
for (uint16_t i = 0; i < param->notify.value_len; i++) {
resp.data.push_back(param->notify.value[i]);
}
api::global_api_server->send_bluetooth_gatt_notify_data_response(resp);
break;
}
default:
break;
}
return true;
}
esp_err_t BluetoothConnection::read_characteristic(uint16_t handle) {
if (!this->connected()) {
ESP_LOGW(TAG, "[%d] [%s] Cannot read GATT characteristic, not connected.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_NOT_CONNECTED;
}
auto *characteristic = this->get_characteristic(handle);
if (characteristic == nullptr) {
ESP_LOGW(TAG, "[%d] [%s] Cannot read GATT characteristic, not found.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_INVALID_HANDLE;
}
ESP_LOGV(TAG, "[%d] [%s] Reading GATT characteristic %s", this->connection_index_, this->address_str_.c_str(),
characteristic->uuid.to_string().c_str());
esp_err_t err =
esp_ble_gattc_read_char(this->gattc_if_, this->conn_id_, characteristic->handle, ESP_GATT_AUTH_REQ_NONE);
if (err != ERR_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_read_char error, err=%d", this->connection_index_,
this->address_str_.c_str(), err);
return err;
}
return ESP_OK;
}
esp_err_t BluetoothConnection::write_characteristic(uint16_t handle, const std::string &data, bool response) {
if (!this->connected()) {
ESP_LOGW(TAG, "[%d] [%s] Cannot write GATT characteristic, not connected.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_NOT_CONNECTED;
}
auto *characteristic = this->get_characteristic(handle);
if (characteristic == nullptr) {
ESP_LOGW(TAG, "[%d] [%s] Cannot write GATT characteristic, not found.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_INVALID_HANDLE;
}
ESP_LOGV(TAG, "[%d] [%s] Writing GATT characteristic %s", this->connection_index_, this->address_str_.c_str(),
characteristic->uuid.to_string().c_str());
auto err = characteristic->write_value((uint8_t *) data.data(), data.size(),
response ? ESP_GATT_WRITE_TYPE_RSP : ESP_GATT_WRITE_TYPE_NO_RSP);
if (err != ERR_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_write_char error, err=%d", this->connection_index_,
this->address_str_.c_str(), err);
return err;
}
return ESP_OK;
}
esp_err_t BluetoothConnection::read_descriptor(uint16_t handle) {
if (!this->connected()) {
ESP_LOGW(TAG, "[%d] [%s] Cannot read GATT descriptor, not connected.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_NOT_CONNECTED;
}
auto *descriptor = this->get_descriptor(handle);
if (descriptor == nullptr) {
ESP_LOGW(TAG, "[%d] [%s] Cannot read GATT descriptor, not found.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_INVALID_HANDLE;
}
ESP_LOGV(TAG, "[%d] [%s] Reading GATT descriptor %s", this->connection_index_, this->address_str_.c_str(),
descriptor->uuid.to_string().c_str());
esp_err_t err =
esp_ble_gattc_read_char_descr(this->gattc_if_, this->conn_id_, descriptor->handle, ESP_GATT_AUTH_REQ_NONE);
if (err != ERR_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_read_char_descr error, err=%d", this->connection_index_,
this->address_str_.c_str(), err);
return err;
}
return ESP_OK;
}
esp_err_t BluetoothConnection::write_descriptor(uint16_t handle, const std::string &data) {
if (!this->connected()) {
ESP_LOGW(TAG, "[%d] [%s] Cannot write GATT descriptor, not connected.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_NOT_CONNECTED;
}
auto *descriptor = this->get_descriptor(handle);
if (descriptor == nullptr) {
ESP_LOGW(TAG, "[%d] [%s] Cannot write GATT descriptor, not found.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_INVALID_HANDLE;
}
ESP_LOGV(TAG, "[%d] [%s] Writing GATT descriptor %s", this->connection_index_, this->address_str_.c_str(),
descriptor->uuid.to_string().c_str());
auto err =
esp_ble_gattc_write_char_descr(this->gattc_if_, this->conn_id_, descriptor->handle, data.size(),
(uint8_t *) data.data(), ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
if (err != ERR_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_write_char_descr error, err=%d", this->connection_index_,
this->address_str_.c_str(), err);
return err;
}
return ESP_OK;
}
esp_err_t BluetoothConnection::notify_characteristic(uint16_t handle, bool enable) {
if (!this->connected()) {
ESP_LOGW(TAG, "[%d] [%s] Cannot notify GATT characteristic, not connected.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_NOT_CONNECTED;
}
auto *characteristic = this->get_characteristic(handle);
if (characteristic == nullptr) {
ESP_LOGW(TAG, "[%d] [%s] Cannot notify GATT characteristic, not found.", this->connection_index_,
this->address_str_.c_str());
return ESP_GATT_INVALID_HANDLE;
}
if (enable) {
ESP_LOGV(TAG, "[%d] [%s] Registering for GATT characteristic notifications %s", this->connection_index_,
this->address_str_.c_str(), characteristic->uuid.to_string().c_str());
esp_err_t err = esp_ble_gattc_register_for_notify(this->gattc_if_, this->remote_bda_, characteristic->handle);
if (err != ESP_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_register_for_notify failed, err=%d", this->connection_index_,
this->address_str_.c_str(), err);
return err;
}
} else {
ESP_LOGV(TAG, "[%d] [%s] Unregistering for GATT characteristic notifications %s", this->connection_index_,
this->address_str_.c_str(), characteristic->uuid.to_string().c_str());
esp_err_t err = esp_ble_gattc_unregister_for_notify(this->gattc_if_, this->remote_bda_, characteristic->handle);
if (err != ESP_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_unregister_for_notify failed, err=%d", this->connection_index_,
this->address_str_.c_str(), err);
return err;
}
}
return ESP_OK;
}
} // namespace bluetooth_proxy
} // namespace esphome
#endif // USE_ESP32

34
esphome/components/bluetooth_proxy/bluetooth_connection.h Normal file
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@ -0,0 +1,34 @@
#pragma once
#ifdef USE_ESP32
#include "esphome/components/esp32_ble_client/ble_client_base.h"
namespace esphome {
namespace bluetooth_proxy {
class BluetoothProxy;
class BluetoothConnection : public esp32_ble_client::BLEClientBase {
public:
bool gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) override;
esp_err_t read_characteristic(uint16_t handle);
esp_err_t write_characteristic(uint16_t handle, const std::string &data, bool response);
esp_err_t read_descriptor(uint16_t handle);
esp_err_t write_descriptor(uint16_t handle, const std::string &data);
esp_err_t notify_characteristic(uint16_t handle, bool enable);
protected:
friend class BluetoothProxy;
int16_t send_service_{-1};
BluetoothProxy *proxy_;
};
} // namespace bluetooth_proxy
} // namespace esphome
#endif // USE_ESP32

379
esphome/components/bluetooth_proxy/bluetooth_proxy.cpp
View File

@ -11,13 +11,7 @@ namespace bluetooth_proxy {
static const char *const TAG = "bluetooth_proxy";
static const esp_err_t ESP_GATT_NOT_CONNECTED = -1;
static const esp_err_t ESP_GATT_WRONG_ADDRESS = -2;
BluetoothProxy::BluetoothProxy() {
global_bluetooth_proxy = this;
this->address_ = 0;
}
BluetoothProxy::BluetoothProxy() { global_bluetooth_proxy = this; }
bool BluetoothProxy::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
if (!api::global_api_server->is_connected())
@ -26,10 +20,6 @@ bool BluetoothProxy::parse_device(const esp32_ble_tracker::ESPBTDevice &device)
device.get_rssi());
this->send_api_packet_(device);
if (this->address_ == 0)
return true;
BLEClientBase::parse_device(device);
return true;
}
@ -57,170 +47,101 @@ void BluetoothProxy::send_api_packet_(const esp32_ble_tracker::ESPBTDevice &devi
api::global_api_server->send_bluetooth_le_advertisement(resp);
}
void BluetoothProxy::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) {
BLEClientBase::gattc_event_handler(event, gattc_if, param);
switch (event) {
case ESP_GATTC_DISCONNECT_EVT: {
api::global_api_server->send_bluetooth_device_connection(this->address_, false, this->mtu_,
param->disconnect.reason);
api::global_api_server->send_bluetooth_connections_free(this->get_bluetooth_connections_free(),
this->get_bluetooth_connections_limit());
this->address_ = 0;
}
case ESP_GATTC_OPEN_EVT: {
if (param->open.status != ESP_GATT_OK && param->open.status != ESP_GATT_ALREADY_OPEN) {
api::global_api_server->send_bluetooth_device_connection(this->address_, false, this->mtu_, param->open.status);
break;
void BluetoothProxy::dump_config() {
ESP_LOGCONFIG(TAG, "Bluetooth Proxy:");
ESP_LOGCONFIG(TAG, " Active: %s", YESNO(this->active_));
}
void BluetoothProxy::loop() {
if (!api::global_api_server->is_connected()) {
for (auto *connection : this->connections_) {
if (connection->get_address() != 0) {
connection->disconnect();
}
break;
}
case ESP_GATTC_SEARCH_CMPL_EVT: {
api::global_api_server->send_bluetooth_device_connection(this->address_, true, this->mtu_);
api::global_api_server->send_bluetooth_connections_free(this->get_bluetooth_connections_free(),
this->get_bluetooth_connections_limit());
break;
}
case ESP_GATTC_READ_DESCR_EVT:
case ESP_GATTC_READ_CHAR_EVT: {
if (param->read.conn_id != this->conn_id_)
break;
if (param->read.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "Error reading char/descriptor at handle 0x%2X, status=%d", param->read.handle,
param->read.status);
api::global_api_server->send_bluetooth_gatt_error(this->address_, param->read.handle, param->read.status);
break;
return;
}
for (auto *connection : this->connections_) {
if (connection->send_service_ == connection->services_.size()) {
connection->send_service_ = -1;
api::global_api_server->send_bluetooth_gatt_services_done(connection->get_address());
} else if (connection->send_service_ >= 0) {
auto &service = connection->services_[connection->send_service_];
api::BluetoothGATTGetServicesResponse resp;
resp.address = connection->get_address();
api::BluetoothGATTService service_resp;
service_resp.uuid = {service->uuid.get_128bit_high(), service->uuid.get_128bit_low()};
service_resp.handle = service->start_handle;
for (auto &characteristic : service->characteristics) {
api::BluetoothGATTCharacteristic characteristic_resp;
characteristic_resp.uuid = {characteristic->uuid.get_128bit_high(), characteristic->uuid.get_128bit_low()};
characteristic_resp.handle = characteristic->handle;
characteristic_resp.properties = characteristic->properties;
for (auto &descriptor : characteristic->descriptors) {
api::BluetoothGATTDescriptor descriptor_resp;
descriptor_resp.uuid = {descriptor->uuid.get_128bit_high(), descriptor->uuid.get_128bit_low()};
descriptor_resp.handle = descriptor->handle;
characteristic_resp.descriptors.push_back(std::move(descriptor_resp));
}
service_resp.characteristics.push_back(std::move(characteristic_resp));
}
api::BluetoothGATTReadResponse resp;
resp.address = this->address_;
resp.handle = param->read.handle;
resp.data.reserve(param->read.value_len);
for (uint16_t i = 0; i < param->read.value_len; i++) {
resp.data.push_back(param->read.value[i]);
}
api::global_api_server->send_bluetooth_gatt_read_response(resp);
break;
resp.services.push_back(std::move(service_resp));
api::global_api_server->send_bluetooth_gatt_services(resp);
connection->send_service_++;
}
case ESP_GATTC_WRITE_CHAR_EVT:
case ESP_GATTC_WRITE_DESCR_EVT: {
if (param->write.conn_id != this->conn_id_)
break;
if (param->write.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "Error writing char/descriptor at handle 0x%2X, status=%d", param->write.handle,
param->write.status);
api::global_api_server->send_bluetooth_gatt_error(this->address_, param->write.handle, param->write.status);
break;
}
api::BluetoothGATTWriteResponse resp;
resp.address = this->address_;
resp.handle = param->write.handle;
api::global_api_server->send_bluetooth_gatt_write_response(resp);
break;
}
case ESP_GATTC_UNREG_FOR_NOTIFY_EVT: {
if (param->unreg_for_notify.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "Error unregistering notifications for handle 0x%2X, status=%d", param->unreg_for_notify.handle,
param->unreg_for_notify.status);
api::global_api_server->send_bluetooth_gatt_error(this->address_, param->unreg_for_notify.handle,
param->unreg_for_notify.status);
break;
}
api::BluetoothGATTNotifyResponse resp;
resp.address = this->address_;
resp.handle = param->unreg_for_notify.handle;
api::global_api_server->send_bluetooth_gatt_notify_response(resp);
break;
}
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
if (param->reg_for_notify.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "Error registering notifications for handle 0x%2X, status=%d", param->reg_for_notify.handle,
param->reg_for_notify.status);
api::global_api_server->send_bluetooth_gatt_error(this->address_, param->reg_for_notify.handle,
param->reg_for_notify.status);
break;
}
api::BluetoothGATTNotifyResponse resp;
resp.address = this->address_;
resp.handle = param->reg_for_notify.handle;
api::global_api_server->send_bluetooth_gatt_notify_response(resp);
break;
}
case ESP_GATTC_NOTIFY_EVT: {
if (param->notify.conn_id != this->conn_id_)
break;
ESP_LOGV(TAG, "ESP_GATTC_NOTIFY_EVT: handle=0x%2X", param->notify.handle);
api::BluetoothGATTNotifyDataResponse resp;
resp.address = this->address_;
resp.handle = param->notify.handle;
resp.data.reserve(param->notify.value_len);
for (uint16_t i = 0; i < param->notify.value_len; i++) {
resp.data.push_back(param->notify.value[i]);
}
api::global_api_server->send_bluetooth_gatt_notify_data_response(resp);
break;
}
default:
break;
}
}
void BluetoothProxy::dump_config() { ESP_LOGCONFIG(TAG, "Bluetooth Proxy:"); }
BluetoothConnection *BluetoothProxy::get_connection_(uint64_t address, bool reserve) {
for (auto *connection : this->connections_) {
if (connection->get_address() == address)
return connection;
}
void BluetoothProxy::loop() {
BLEClientBase::loop();
if (this->state_ != espbt::ClientState::IDLE && !api::global_api_server->is_connected()) {
ESP_LOGI(TAG, "[%s] Disconnecting.", this->address_str().c_str());
auto err = esp_ble_gattc_close(this->gattc_if_, this->conn_id_);
if (err != ERR_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_close error, address=%s err=%d", this->address_str().c_str(), err);
if (!reserve)
return nullptr;
for (auto *connection : this->connections_) {
if (connection->get_address() == 0) {
connection->set_address(address);
return connection;
}
}
if (this->send_service_ == this->services_.size()) {
this->send_service_ = -1;
api::global_api_server->send_bluetooth_gatt_services_done(this->address_);
} else if (this->send_service_ >= 0) {
auto &service = this->services_[this->send_service_];
api::BluetoothGATTGetServicesResponse resp;
resp.address = this->address_;
api::BluetoothGATTService service_resp;
service_resp.uuid = {service->uuid.get_128bit_high(), service->uuid.get_128bit_low()};
service_resp.handle = service->start_handle;
for (auto &characteristic : service->characteristics) {
api::BluetoothGATTCharacteristic characteristic_resp;
characteristic_resp.uuid = {characteristic->uuid.get_128bit_high(), characteristic->uuid.get_128bit_low()};
characteristic_resp.handle = characteristic->handle;
characteristic_resp.properties = characteristic->properties;
for (auto &descriptor : characteristic->descriptors) {
api::BluetoothGATTDescriptor descriptor_resp;
descriptor_resp.uuid = {descriptor->uuid.get_128bit_high(), descriptor->uuid.get_128bit_low()};
descriptor_resp.handle = descriptor->handle;
characteristic_resp.descriptors.push_back(std::move(descriptor_resp));
}
service_resp.characteristics.push_back(std::move(characteristic_resp));
}
resp.services.push_back(std::move(service_resp));
api::global_api_server->send_bluetooth_gatt_services(resp);
this->send_service_++;
}
return nullptr;
}
void BluetoothProxy::bluetooth_device_request(const api::BluetoothDeviceRequest &msg) {
switch (msg.request_type) {
case api::enums::BLUETOOTH_DEVICE_REQUEST_TYPE_CONNECT: {
this->address_ = msg.address;
this->set_state(espbt::ClientState::SEARCHING);
auto *connection = this->get_connection_(msg.address, true);
if (connection == nullptr) {
ESP_LOGW(TAG, "No free connections available");
api::global_api_server->send_bluetooth_device_connection(msg.address, false);
return;
}
ESP_LOGV(TAG, "[%d] [%s] Searching to connect", connection->get_connection_index(),
connection->address_str().c_str());
connection->set_state(espbt::ClientState::SEARCHING);
api::global_api_server->send_bluetooth_connections_free(this->get_bluetooth_connections_free(),
this->get_bluetooth_connections_limit());
break;
}
case api::enums::BLUETOOTH_DEVICE_REQUEST_TYPE_DISCONNECT: {
if (this->state() != espbt::ClientState::IDLE) {
ESP_LOGI(TAG, "[%s] Disconnecting.", this->address_str().c_str());
auto err = esp_ble_gattc_close(this->gattc_if_, this->conn_id_);
if (err != ERR_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_close error, address=%s err=%d", this->address_str().c_str(), err);
}
auto *connection = this->get_connection_(msg.address, false);
if (connection == nullptr) {
api::global_api_server->send_bluetooth_device_connection(msg.address, false);
api::global_api_server->send_bluetooth_connections_free(this->get_bluetooth_connections_free(),
this->get_bluetooth_connections_limit());
return;
}
if (connection->state() != espbt::ClientState::IDLE) {
connection->disconnect();
} else {
connection->set_address(0);
api::global_api_server->send_bluetooth_device_connection(msg.address, false);
api::global_api_server->send_bluetooth_connections_free(this->get_bluetooth_connections_free(),
this->get_bluetooth_connections_limit());
}
break;
}
@ -231,170 +152,88 @@ void BluetoothProxy::bluetooth_device_request(const api::BluetoothDeviceRequest
}
void BluetoothProxy::bluetooth_gatt_read(const api::BluetoothGATTReadRequest &msg) {
if (this->state_ != espbt::ClientState::ESTABLISHED) {
ESP_LOGW(TAG, "Cannot read GATT characteristic, not connected.");
auto *connection = this->get_connection_(msg.address, false);
if (connection == nullptr) {
ESP_LOGW(TAG, "Cannot read GATT characteristic, not connected");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_NOT_CONNECTED);
return;
}
if (this->address_ != msg.address) {
ESP_LOGW(TAG, "Address mismatch for read GATT characteristic request");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_WRONG_ADDRESS);
return;
}
auto *characteristic = this->get_characteristic(msg.handle);
if (characteristic == nullptr) {
ESP_LOGW(TAG, "Cannot read GATT characteristic, not found.");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_INVALID_HANDLE);
return;
}
ESP_LOGV(TAG, "Reading GATT characteristic %s", characteristic->uuid.to_string().c_str());
esp_err_t err =
esp_ble_gattc_read_char(this->gattc_if_, this->conn_id_, characteristic->handle, ESP_GATT_AUTH_REQ_NONE);
if (err != ERR_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_read_char error, err=%d", err);
auto err = connection->read_characteristic(msg.handle);
if (err != ESP_OK) {
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, err);
}
}
void BluetoothProxy::bluetooth_gatt_write(const api::BluetoothGATTWriteRequest &msg) {
if (this->state_ != espbt::ClientState::ESTABLISHED) {
ESP_LOGW(TAG, "Cannot write GATT characteristic, not connected.");
auto *connection = this->get_connection_(msg.address, false);
if (connection == nullptr) {
ESP_LOGW(TAG, "Cannot write GATT characteristic, not connected");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_NOT_CONNECTED);
return;
}
if (this->address_ != msg.address) {
ESP_LOGW(TAG, "Address mismatch for write GATT characteristic request");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_WRONG_ADDRESS);
return;
}
auto *characteristic = this->get_characteristic(msg.handle);
if (characteristic == nullptr) {
ESP_LOGW(TAG, "Cannot write GATT characteristic, not found.");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_INVALID_HANDLE);
return;
}
ESP_LOGV(TAG, "Writing GATT characteristic %s", characteristic->uuid.to_string().c_str());
auto err = characteristic->write_value((uint8_t *) msg.data.data(), msg.data.size(),
msg.response ? ESP_GATT_WRITE_TYPE_RSP : ESP_GATT_WRITE_TYPE_NO_RSP);
if (err != ERR_OK) {
auto err = connection->write_characteristic(msg.handle, msg.data, msg.response);
if (err != ESP_OK) {
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, err);
}
}
void BluetoothProxy::bluetooth_gatt_read_descriptor(const api::BluetoothGATTReadDescriptorRequest &msg) {
if (this->state_ != espbt::ClientState::ESTABLISHED) {
ESP_LOGW(TAG, "Cannot read GATT characteristic descriptor, not connected.");
auto *connection = this->get_connection_(msg.address, false);
if (connection == nullptr) {
ESP_LOGW(TAG, "Cannot read GATT descriptor, not connected");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_NOT_CONNECTED);
return;
}
if (this->address_ != msg.address) {
ESP_LOGW(TAG, "Address mismatch for read GATT characteristic descriptor request");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_WRONG_ADDRESS);
return;
}
auto *descriptor = this->get_descriptor(msg.handle);
if (descriptor == nullptr) {
ESP_LOGW(TAG, "Cannot read GATT characteristic descriptor, not found.");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_INVALID_HANDLE);
return;
}
ESP_LOGV(TAG, "Reading GATT characteristic descriptor %s -> %s", descriptor->characteristic->uuid.to_string().c_str(),
descriptor->uuid.to_string().c_str());
esp_err_t err =
esp_ble_gattc_read_char_descr(this->gattc_if_, this->conn_id_, descriptor->handle, ESP_GATT_AUTH_REQ_NONE);
if (err != ERR_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_read_char error, err=%d", err);
auto err = connection->read_descriptor(msg.handle);
if (err != ESP_OK) {
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, err);
}
}
void BluetoothProxy::bluetooth_gatt_write_descriptor(const api::BluetoothGATTWriteDescriptorRequest &msg) {
if (this->state_ != espbt::ClientState::ESTABLISHED) {
ESP_LOGW(TAG, "Cannot write GATT characteristic descriptor, not connected.");
auto *connection = this->get_connection_(msg.address, false);
if (connection == nullptr) {
ESP_LOGW(TAG, "Cannot write GATT descriptor, not connected");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_NOT_CONNECTED);
return;
}
if (this->address_ != msg.address) {
ESP_LOGW(TAG, "Address mismatch for write GATT characteristic descriptor request");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_WRONG_ADDRESS);
return;
}
auto *descriptor = this->get_descriptor(msg.handle);
if (descriptor == nullptr) {
ESP_LOGW(TAG, "Cannot write GATT characteristic descriptor, not found.");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_INVALID_HANDLE);
return;
}
ESP_LOGV(TAG, "Writing GATT characteristic descriptor %s -> %s", descriptor->characteristic->uuid.to_string().c_str(),
descriptor->uuid.to_string().c_str());
esp_err_t err =
esp_ble_gattc_write_char_descr(this->gattc_if_, this->conn_id_, descriptor->handle, msg.data.size(),
(uint8_t *) msg.data.data(), ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
if (err != ERR_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_write_char_descr error, err=%d", err);
auto err = connection->write_descriptor(msg.handle, msg.data);
if (err != ESP_OK) {
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, err);
}
}
void BluetoothProxy::bluetooth_gatt_send_services(const api::BluetoothGATTGetServicesRequest &msg) {
if (this->state_ != espbt::ClientState::ESTABLISHED) {
ESP_LOGW(TAG, "Cannot get GATT services, not connected.");
auto *connection = this->get_connection_(msg.address, false);
if (connection == nullptr || !connection->connected()) {
ESP_LOGW(TAG, "Cannot get GATT services, not connected");
api::global_api_server->send_bluetooth_gatt_error(msg.address, 0, ESP_GATT_NOT_CONNECTED);
return;
}
if (this->address_ != msg.address) {
ESP_LOGW(TAG, "Address mismatch for service list request");
api::global_api_server->send_bluetooth_gatt_error(msg.address, 0, ESP_GATT_WRONG_ADDRESS);
if (connection->services_.empty()) {
ESP_LOGW(TAG, "[%d] [%s] No GATT services found", connection->connection_index_, connection->address_str().c_str());
api::global_api_server->send_bluetooth_gatt_services_done(msg.address);
return;
}
this->send_service_ = 0;
if (connection->send_service_ == -1) // Don't start sending services again if we're already sending them
connection->send_service_ = 0;
}
void BluetoothProxy::bluetooth_gatt_notify(const api::BluetoothGATTNotifyRequest &msg) {
if (this->state_ != espbt::ClientState::ESTABLISHED) {
ESP_LOGW(TAG, "Cannot configure notify, not connected.");
auto *connection = this->get_connection_(msg.address, false);
if (connection == nullptr) {
ESP_LOGW(TAG, "Cannot notify GATT characteristic, not connected");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_NOT_CONNECTED);
return;
}
if (this->address_ != msg.address) {
ESP_LOGW(TAG, "Address mismatch for notify");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_WRONG_ADDRESS);
return;
}
auto *characteristic = this->get_characteristic(msg.handle);
if (characteristic == nullptr) {
ESP_LOGW(TAG, "Cannot notify GATT characteristic, not found.");
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, ESP_GATT_INVALID_HANDLE);
return;
}
esp_err_t err;
if (msg.enable) {
err = esp_ble_gattc_register_for_notify(this->gattc_if_, this->remote_bda_, characteristic->handle);
if (err != ESP_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_register_for_notify failed, err=%d", err);
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, err);
}
} else {
err = esp_ble_gattc_unregister_for_notify(this->gattc_if_, this->remote_bda_, characteristic->handle);
if (err != ESP_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_unregister_for_notify failed, err=%d", err);
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, err);
}
auto err = connection->notify_characteristic(msg.handle, msg.enable);
if (err != ESP_OK) {
api::global_api_server->send_bluetooth_gatt_error(msg.address, msg.handle, err);
}
}

28
esphome/components/bluetooth_proxy/bluetooth_proxy.h
View File

@ -11,22 +11,26 @@
#include "esphome/core/component.h"
#include "esphome/core/defines.h"
#include <map>
#include "bluetooth_connection.h"
namespace esphome {
namespace bluetooth_proxy {
static const esp_err_t ESP_GATT_NOT_CONNECTED = -1;
using namespace esp32_ble_client;
class BluetoothProxy : public BLEClientBase {
class BluetoothProxy : public esp32_ble_tracker::ESPBTDeviceListener, public Component {
public:
BluetoothProxy();
bool parse_device(const esp32_ble_tracker::ESPBTDevice &device) override;
void dump_config() override;
void loop() override;
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) override;
void register_connection(BluetoothConnection *connection) {
this->connections_.push_back(connection);
connection->proxy_ = this;
}
void bluetooth_device_request(const api::BluetoothDeviceRequest &msg);
void bluetooth_gatt_read(const api::BluetoothGATTReadRequest &msg);
@ -36,8 +40,16 @@ class BluetoothProxy : public BLEClientBase {
void bluetooth_gatt_send_services(const api::BluetoothGATTGetServicesRequest &msg);
void bluetooth_gatt_notify(const api::BluetoothGATTNotifyRequest &msg);
int get_bluetooth_connections_free() { return this->state_ == espbt::ClientState::IDLE ? 1 : 0; }
int get_bluetooth_connections_limit() { return 1; }
int get_bluetooth_connections_free() {
int free = 0;
for (auto *connection : this->connections_) {
if (connection->address_ == 0) {
free++;
}
}
return free;
}
int get_bluetooth_connections_limit() { return this->connections_.size(); }
void set_active(bool active) { this->active_ = active; }
bool has_active() { return this->active_; }
@ -45,8 +57,12 @@ class BluetoothProxy : public BLEClientBase {
protected:
void send_api_packet_(const esp32_ble_tracker::ESPBTDevice &device);
BluetoothConnection *get_connection_(uint64_t address, bool reserve);
int16_t send_service_{-1};
bool active_;
std::vector<BluetoothConnection *> connections_{};
};
extern BluetoothProxy *global_bluetooth_proxy; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)

11
esphome/components/esp32_ble_client/ble_characteristic.cpp
View File

@ -9,7 +9,7 @@
namespace esphome {
namespace esp32_ble_client {
static const char *const TAG = "esp32_ble_client.characteristic";
static const char *const TAG = "esp32_ble_client";
BLECharacteristic::~BLECharacteristic() {
for (auto &desc : this->descriptors)
@ -29,7 +29,8 @@ void BLECharacteristic::parse_descriptors() {
break;
}
if (status != ESP_GATT_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_get_all_descr error, status=%d", status);
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_get_all_descr error, status=%d",
this->service->client->get_connection_index(), this->service->client->address_str().c_str(), status);
break;
}
if (count == 0) {
@ -41,7 +42,8 @@ void BLECharacteristic::parse_descriptors() {
desc->handle = result.handle;
desc->characteristic = this;
this->descriptors.push_back(desc);
ESP_LOGV(TAG, " descriptor %s, handle 0x%x", desc->uuid.to_string().c_str(), desc->handle);
ESP_LOGV(TAG, "[%d] [%s] descriptor %s, handle 0x%x", this->service->client->get_connection_index(),
this->service->client->address_str().c_str(), desc->uuid.to_string().c_str(), desc->handle);
offset++;
}
}
@ -69,7 +71,8 @@ esp_err_t BLECharacteristic::write_value(uint8_t *new_val, int16_t new_val_size,
auto status = esp_ble_gattc_write_char(client->get_gattc_if(), client->get_conn_id(), this->handle, new_val_size,
new_val, write_type, ESP_GATT_AUTH_REQ_NONE);
if (status) {
ESP_LOGW(TAG, "Error sending write value to BLE gattc server, status=%d", status);
ESP_LOGW(TAG, "[%d] [%s] Error sending write value to BLE gattc server, status=%d",
this->service->client->get_connection_index(), this->service->client->address_str().c_str(), status);
}
return status;
}

113
esphome/components/esp32_ble_client/ble_client_base.cpp
View File

@ -11,6 +11,9 @@ namespace esp32_ble_client {
static const char *const TAG = "esp32_ble_client";
void BLEClientBase::setup() {
static uint8_t connection_index = 0;
this->connection_index_ = connection_index++;
auto ret = esp_ble_gattc_app_register(this->app_id);
if (ret) {
ESP_LOGE(TAG, "gattc app register failed. app_id=%d code=%d", this->app_id, ret);
@ -33,7 +36,7 @@ bool BLEClientBase::parse_device(const espbt::ESPBTDevice &device) {
if (this->state_ != espbt::ClientState::IDLE && this->state_ != espbt::ClientState::SEARCHING)
return false;
ESP_LOGD(TAG, "Found device at MAC address [%s]", device.address_str().c_str());
ESP_LOGD(TAG, "[%d] [%s] Found device", this->connection_index_, this->address_str_.c_str());
this->set_state(espbt::ClientState::DISCOVERED);
auto addr = device.address_uint64();
@ -47,80 +50,88 @@ bool BLEClientBase::parse_device(const espbt::ESPBTDevice &device) {
return true;
}
std::string BLEClientBase::address_str() const {
return str_snprintf("%02x:%02x:%02x:%02x:%02x:%02x", 17, (uint8_t)(this->address_ >> 40) & 0xff,
(uint8_t)(this->address_ >> 32) & 0xff, (uint8_t)(this->address_ >> 24) & 0xff,
(uint8_t)(this->address_ >> 16) & 0xff, (uint8_t)(this->address_ >> 8) & 0xff,
(uint8_t)(this->address_ >> 0) & 0xff);
}
void BLEClientBase::connect() {
ESP_LOGI(TAG, "Attempting BLE connection to %s", this->address_str().c_str());
ESP_LOGI(TAG, "[%d] [%s] Attempting BLE connection", this->connection_index_, this->address_str_.c_str());
auto ret = esp_ble_gattc_open(this->gattc_if_, this->remote_bda_, this->remote_addr_type_, true);
if (ret) {
ESP_LOGW(TAG, "esp_ble_gattc_open error, address=%s status=%d", this->address_str().c_str(), ret);
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_open error, status=%d", this->connection_index_, this->address_str_.c_str(),
ret);
this->set_state(espbt::ClientState::IDLE);
} else {
this->set_state(espbt::ClientState::CONNECTING);
}
}
void BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t esp_gattc_if,
void BLEClientBase::disconnect() {
ESP_LOGI(TAG, "[%d] [%s] Disconnecting.", this->connection_index_, this->address_str_.c_str());
auto err = esp_ble_gattc_close(this->gattc_if_, this->conn_id_);
if (err != ESP_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_close error, err=%d", this->connection_index_, this->address_str_.c_str(),
err);
}
if (this->state_ == espbt::ClientState::SEARCHING) {
this->set_address(0);
this->set_state(espbt::ClientState::IDLE);
}
}
bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t esp_gattc_if,
esp_ble_gattc_cb_param_t *param) {
if (event == ESP_GATTC_REG_EVT && this->app_id != param->reg.app_id)
return;
return false;
if (event != ESP_GATTC_REG_EVT && esp_gattc_if != ESP_GATT_IF_NONE && esp_gattc_if != this->gattc_if_)
return;
return false;
ESP_LOGV(TAG, "[%d] [%s] gattc_event_handler: event=%d gattc_if=%d", this->connection_index_,
this->address_str_.c_str(), event, esp_gattc_if);
switch (event) {
case ESP_GATTC_REG_EVT: {
if (param->reg.status == ESP_GATT_OK) {
ESP_LOGV(TAG, "gattc registered app id %d", this->app_id);
ESP_LOGV(TAG, "[%d] [%s] gattc registered app id %d", this->connection_index_, this->address_str_.c_str(),
this->app_id);
this->gattc_if_ = esp_gattc_if;
} else {
ESP_LOGE(TAG, "gattc app registration failed id=%d code=%d", param->reg.app_id, param->reg.status);
ESP_LOGE(TAG, "[%d] [%s] gattc app registration failed id=%d code=%d", this->connection_index_,
this->address_str_.c_str(), param->reg.app_id, param->reg.status);
}
break;
}
case ESP_GATTC_OPEN_EVT: {
ESP_LOGV(TAG, "[%s] ESP_GATTC_OPEN_EVT", this->address_str().c_str());
ESP_LOGV(TAG, "[%d] [%s] ESP_GATTC_OPEN_EVT", this->connection_index_, this->address_str_.c_str());
this->conn_id_ = param->open.conn_id;
if (param->open.status != ESP_GATT_OK && param->open.status != ESP_GATT_ALREADY_OPEN) {
ESP_LOGW(TAG, "connect to %s failed, status=%d", this->address_str().c_str(), param->open.status);
ESP_LOGW(TAG, "[%d] [%s] Connection failed, status=%d", this->connection_index_, this->address_str_.c_str(),
param->open.status);
this->set_state(espbt::ClientState::IDLE);
break;
}
break;
}
case ESP_GATTC_CONNECT_EVT: {
ESP_LOGV(TAG, "[%s] ESP_GATTC_CONNECT_EVT", this->address_str().c_str());
if (this->conn_id_ != param->connect.conn_id) {
ESP_LOGD(TAG, "[%s] Unexpected conn_id in CONNECT_EVT: param conn=%d, open conn=%d",
this->address_str().c_str(), param->connect.conn_id, this->conn_id_);
}
auto ret = esp_ble_gattc_send_mtu_req(this->gattc_if_, param->connect.conn_id);
auto ret = esp_ble_gattc_send_mtu_req(this->gattc_if_, param->open.conn_id);
if (ret) {
ESP_LOGW(TAG, "esp_ble_gattc_send_mtu_req failed, status=%x", ret);
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_send_mtu_req failed, status=%x", this->connection_index_,
this->address_str_.c_str(), ret);
}
break;
}
case ESP_GATTC_CFG_MTU_EVT: {
if (param->cfg_mtu.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "cfg_mtu to %s failed, mtu %d, status %d", this->address_str().c_str(), param->cfg_mtu.mtu,
param->cfg_mtu.status);
ESP_LOGW(TAG, "[%d] [%s] cfg_mtu failed, mtu %d, status %d", this->connection_index_,
this->address_str_.c_str(), param->cfg_mtu.mtu, param->cfg_mtu.status);
this->set_state(espbt::ClientState::IDLE);
break;
}
ESP_LOGV(TAG, "cfg_mtu status %d, mtu %d", param->cfg_mtu.status, param->cfg_mtu.mtu);
ESP_LOGV(TAG, "[%d] [%s] cfg_mtu status %d, mtu %d", this->connection_index_, this->address_str_.c_str(),
param->cfg_mtu.status, param->cfg_mtu.mtu);
this->mtu_ = param->cfg_mtu.mtu;
esp_ble_gattc_search_service(esp_gattc_if, param->cfg_mtu.conn_id, nullptr);
break;
}
case ESP_GATTC_DISCONNECT_EVT: {
if (memcmp(param->disconnect.remote_bda, this->remote_bda_, 6) != 0) {
return;
}
ESP_LOGV(TAG, "[%s] ESP_GATTC_DISCONNECT_EVT, reason %d", this->address_str().c_str(), param->disconnect.reason);
if (memcmp(param->disconnect.remote_bda, this->remote_bda_, 6) != 0)
return false;
ESP_LOGV(TAG, "[%d] [%s] ESP_GATTC_DISCONNECT_EVT, reason %d", this->connection_index_,
this->address_str_.c_str(), param->disconnect.reason);
for (auto &svc : this->services_)
delete svc; // NOLINT(cppcoreguidelines-owning-memory)
this->services_.clear();
@ -137,10 +148,12 @@ void BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
break;
}
case ESP_GATTC_SEARCH_CMPL_EVT: {
ESP_LOGV(TAG, "[%s] ESP_GATTC_SEARCH_CMPL_EVT", this->address_str().c_str());
ESP_LOGV(TAG, "[%d] [%s] ESP_GATTC_SEARCH_CMPL_EVT", this->connection_index_, this->address_str_.c_str());
for (auto &svc : this->services_) {
ESP_LOGI(TAG, "Service UUID: %s", svc->uuid.to_string().c_str());
ESP_LOGI(TAG, " start_handle: 0x%x end_handle: 0x%x", svc->start_handle, svc->end_handle);
ESP_LOGI(TAG, "[%d] [%s] Service UUID: %s", this->connection_index_, this->address_str_.c_str(),
svc->uuid.to_string().c_str());
ESP_LOGI(TAG, "[%d] [%s] start_handle: 0x%x end_handle: 0x%x", this->connection_index_,
this->address_str_.c_str(), svc->start_handle, svc->end_handle);
svc->parse_characteristics();
}
this->set_state(espbt::ClientState::CONNECTED);
@ -149,14 +162,10 @@ void BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
}
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
auto *descr = this->get_config_descriptor(param->reg_for_notify.handle);
if (descr == nullptr) {
ESP_LOGW(TAG, "No descriptor found for notify of handle 0x%x", param->reg_for_notify.handle);
break;
}
if (descr->uuid.get_uuid().len != ESP_UUID_LEN_16 ||
descr->uuid.get_uuid().uuid.uuid16 != ESP_GATT_UUID_CHAR_CLIENT_CONFIG) {
ESP_LOGW(TAG, "Handle 0x%x (uuid %s) is not a client config char uuid", param->reg_for_notify.handle,
descr->uuid.to_string().c_str());
ESP_LOGW(TAG, "[%d] [%s] Handle 0x%x (uuid %s) is not a client config char uuid", this->connection_index_,
this->address_str_.c_str(), param->reg_for_notify.handle, descr->uuid.to_string().c_str());
break;
}
uint16_t notify_en = 1;
@ -164,7 +173,8 @@ void BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
esp_ble_gattc_write_char_descr(this->gattc_if_, this->conn_id_, descr->handle, sizeof(notify_en),
(uint8_t *) &notify_en, ESP_GATT_WRITE_TYPE_RSP, ESP_GATT_AUTH_REQ_NONE);
if (status) {
ESP_LOGW(TAG, "esp_ble_gattc_write_char_descr error, status=%d", status);
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_write_char_descr error, status=%d", this->connection_index_,
this->address_str_.c_str(), status);
}
break;
}
@ -172,24 +182,28 @@ void BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
default:
break;
}
return true;
}
void BLEClientBase::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) {
switch (event) {
// This event is sent by the server when it requests security
case ESP_GAP_BLE_SEC_REQ_EVT:
ESP_LOGV(TAG, "ESP_GAP_BLE_SEC_REQ_EVT %x", event);
ESP_LOGV(TAG, "[%d] [%s] ESP_GAP_BLE_SEC_REQ_EVT %x", this->connection_index_, this->address_str_.c_str(), event);
esp_ble_gap_security_rsp(param->ble_security.ble_req.bd_addr, true);
break;
// This event is sent once authentication has completed
case ESP_GAP_BLE_AUTH_CMPL_EVT:
esp_bd_addr_t bd_addr;
memcpy(bd_addr, param->ble_security.auth_cmpl.bd_addr, sizeof(esp_bd_addr_t));
ESP_LOGI(TAG, "auth complete. remote BD_ADDR: %s", format_hex(bd_addr, 6).c_str());
ESP_LOGI(TAG, "[%d] [%s] auth complete. remote BD_ADDR: %s", this->connection_index_, this->address_str_.c_str(),
format_hex(bd_addr, 6).c_str());
if (!param->ble_security.auth_cmpl.success) {
ESP_LOGE(TAG, "auth fail reason = 0x%x", param->ble_security.auth_cmpl.fail_reason);
ESP_LOGE(TAG, "[%d] [%s] auth fail reason = 0x%x", this->connection_index_, this->address_str_.c_str(),
param->ble_security.auth_cmpl.fail_reason);
} else {
ESP_LOGV(TAG, "auth success. address type = %d auth mode = %d", param->ble_security.auth_cmpl.addr_type,
ESP_LOGV(TAG, "[%d] [%s] auth success. address type = %d auth mode = %d", this->connection_index_,
this->address_str_.c_str(), param->ble_security.auth_cmpl.addr_type,
param->ble_security.auth_cmpl.auth_mode);
}
break;
@ -245,7 +259,8 @@ float BLEClientBase::parse_char_value(uint8_t *value, uint16_t length) {
(int32_t)(value[4]));
}
}
ESP_LOGW(TAG, "Cannot parse characteristic value of type 0x%x length %d", value[0], length);
ESP_LOGW(TAG, "[%d] [%s] Cannot parse characteristic value of type 0x%x length %d", this->connection_index_,
this->address_str_.c_str(), value[0], length);
return NAN;
}

28
esphome/components/esp32_ble_client/ble_client_base.h
View File

@ -28,13 +28,27 @@ class BLEClientBase : public espbt::ESPBTClient, public Component {
bool parse_device(const espbt::ESPBTDevice &device) override;
void on_scan_end() override {}
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
bool gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) override;
void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) override;
void connect() override;
void disconnect();
void set_address(uint64_t address) { this->address_ = address; }
std::string address_str() const;
bool connected() { return this->state_ == espbt::ClientState::ESTABLISHED; }
void set_address(uint64_t address) {
this->address_ = address;
if (address == 0) {
memset(this->remote_bda_, 0, sizeof(this->remote_bda_));
this->address_str_ = "";
} else {
this->address_str_ = str_snprintf("%02x:%02x:%02x:%02x:%02x:%02x", 17, (uint8_t)(this->address_ >> 40) & 0xff,
(uint8_t)(this->address_ >> 32) & 0xff, (uint8_t)(this->address_ >> 24) & 0xff,
(uint8_t)(this->address_ >> 16) & 0xff, (uint8_t)(this->address_ >> 8) & 0xff,
(uint8_t)(this->address_ >> 0) & 0xff);
}
}
std::string address_str() const { return this->address_str_; }
BLEService *get_service(espbt::ESPBTUUID uuid);
BLEService *get_service(uint16_t uuid);
@ -55,12 +69,16 @@ class BLEClientBase : public espbt::ESPBTClient, public Component {
uint16_t get_conn_id() const { return this->conn_id_; }
uint64_t get_address() const { return this->address_; }
uint8_t get_connection_index() const { return this->connection_index_; }
protected:
int gattc_if_;
esp_bd_addr_t remote_bda_;
esp_ble_addr_type_t remote_addr_type_;
uint16_t conn_id_;
uint64_t address_;
uint16_t conn_id_{0xFFFF};
uint64_t address_{0};
std::string address_str_{};
uint8_t connection_index_;
uint16_t mtu_{23};
std::vector<BLEService *> services_;

10
esphome/components/esp32_ble_client/ble_service.cpp
View File

@ -8,7 +8,7 @@
namespace esphome {
namespace esp32_ble_client {
static const char *const TAG = "esp32_ble_client.service";
static const char *const TAG = "esp32_ble_client";
BLECharacteristic *BLEService::get_characteristic(espbt::ESPBTUUID uuid) {
for (auto &chr : this->characteristics) {
@ -40,7 +40,8 @@ void BLEService::parse_characteristics() {
break;
}
if (status != ESP_GATT_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_get_all_char error, status=%d", status);
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_get_all_char error, status=%d", this->client->get_connection_index(),
this->client->address_str().c_str(), status);
break;
}
if (count == 0) {
@ -53,8 +54,9 @@ void BLEService::parse_characteristics() {
characteristic->handle = result.char_handle;
characteristic->service = this;
this->characteristics.push_back(characteristic);
ESP_LOGI(TAG, " characteristic %s, handle 0x%x, properties 0x%x", characteristic->uuid.to_string().c_str(),
characteristic->handle, characteristic->properties);
ESP_LOGI(TAG, "[%d] [%s] characteristic %s, handle 0x%x, properties 0x%x", this->client->get_connection_index(),
this->client->address_str().c_str(), characteristic->uuid.to_string().c_str(), characteristic->handle,
characteristic->properties);
characteristic->parse_descriptors();
offset++;
}

2
esphome/components/esp32_ble_tracker/esp32_ble_tracker.h
View File

@ -159,7 +159,7 @@ enum class ClientState {
class ESPBTClient : public ESPBTDeviceListener {
public:
virtual void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
virtual bool gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) = 0;
virtual void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) = 0;
virtual void connect() = 0;