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https://github.com/esphome/esphome.git
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140 lines
3.8 KiB
C++
140 lines
3.8 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/helpers.h"
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#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
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#ifdef ARDUINO_ARCH_ESP32
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#include <string>
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#include <array>
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#include <esp_gap_ble_api.h>
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#include <esp_gattc_api.h>
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#include <esp_bt_defs.h>
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namespace esphome {
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namespace ble_client {
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namespace espbt = esphome::esp32_ble_tracker;
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class BLEClient;
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class BLEService;
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class BLECharacteristic;
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class BLEClientNode {
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public:
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virtual void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
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esp_ble_gattc_cb_param_t *param) = 0;
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virtual void loop() = 0;
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void set_address(uint64_t address) { address_ = address; }
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espbt::ESPBTClient *client;
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// This should be transitioned to Established once the node no longer needs
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// the services/descriptors/characteristics of the parent client. This will
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// allow some memory to be freed.
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espbt::ClientState node_state;
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BLEClient *parent() { return this->parent_; }
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void set_ble_client_parent(BLEClient *parent) { this->parent_ = parent; }
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protected:
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BLEClient *parent_;
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uint64_t address_;
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};
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class BLEDescriptor {
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public:
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espbt::ESPBTUUID uuid;
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uint16_t handle;
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BLECharacteristic *characteristic;
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};
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class BLECharacteristic {
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public:
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~BLECharacteristic();
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espbt::ESPBTUUID uuid;
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uint16_t handle;
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esp_gatt_char_prop_t properties;
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std::vector<BLEDescriptor *> descriptors;
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void parse_descriptors();
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BLEDescriptor *get_descriptor(espbt::ESPBTUUID uuid);
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BLEDescriptor *get_descriptor(uint16_t uuid);
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BLEService *service;
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};
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class BLEService {
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public:
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~BLEService();
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espbt::ESPBTUUID uuid;
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uint16_t start_handle;
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uint16_t end_handle;
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std::vector<BLECharacteristic *> characteristics;
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BLEClient *client;
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void parse_characteristics();
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BLECharacteristic *get_characteristic(espbt::ESPBTUUID uuid);
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BLECharacteristic *get_characteristic(uint16_t uuid);
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};
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class BLEClient : public espbt::ESPBTClient, public Component {
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public:
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void setup() override;
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void dump_config() override;
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void loop() override;
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void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
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bool parse_device(const espbt::ESPBTDevice &device) override;
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void on_scan_end() override {}
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void connect();
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void set_address(uint64_t address) { this->address = address; }
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void set_enabled(bool enabled);
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void register_ble_node(BLEClientNode *node) {
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node->client = this;
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node->set_ble_client_parent(this);
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this->nodes_.push_back(node);
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}
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BLEService *get_service(espbt::ESPBTUUID uuid);
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BLEService *get_service(uint16_t uuid);
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BLECharacteristic *get_characteristic(espbt::ESPBTUUID service, espbt::ESPBTUUID chr);
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BLECharacteristic *get_characteristic(uint16_t service, uint16_t chr);
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BLEDescriptor *get_descriptor(espbt::ESPBTUUID service, espbt::ESPBTUUID chr, espbt::ESPBTUUID descr);
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BLEDescriptor *get_descriptor(uint16_t service, uint16_t chr, uint16_t descr);
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// Get the configuration descriptor for the given characteristic handle.
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BLEDescriptor *get_config_descriptor(uint16_t handle);
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float parse_char_value(uint8_t *value, uint16_t length);
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int gattc_if;
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esp_bd_addr_t remote_bda;
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uint16_t conn_id;
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uint64_t address;
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bool enabled;
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std::string address_str() const;
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protected:
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void set_states(espbt::ClientState st) {
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this->set_state(st);
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for (auto &node : nodes_)
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node->node_state = st;
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}
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bool all_nodes_established() {
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if (this->state() != espbt::ClientState::Established)
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return false;
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for (auto &node : nodes_)
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if (node->node_state != espbt::ClientState::Established)
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return false;
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return true;
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}
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std::vector<BLEClientNode *> nodes_;
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std::vector<BLEService *> services_;
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};
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} // namespace ble_client
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} // namespace esphome
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#endif
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