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Code Issues Releases Wiki Activity

Allow multiple bluetooth proxy connections (#3971)

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This commit is contained in:
Jesse Hills
2022-11-02 23:02:33 +13:00
committed by GitHub
parent e7d236f939
commit 0e66c899ce
13 changed files with 601 additions and 349 deletions
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54
esphome/components/bluetooth_proxy/__init__.py
View File

@@ -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)