Refactor esp32_ble_tracker to use esp32_ble core ble setup code (#4173)

esphome/components/esp32_ble/ble_event.h

@@ -0,0 +1,94 @@
+#pragma once
+
+#ifdef USE_ESP32
+
+#include <vector>
+
+#include <esp_gap_ble_api.h>
+#include <esp_gattc_api.h>
+#include <esp_gatts_api.h>
+
+namespace esphome {
+namespace esp32_ble {
+// Received GAP, GATTC and GATTS events are only queued, and get processed in the main loop().
+// This class stores each event in a single type.
+class BLEEvent {
+ public:
+  BLEEvent(esp_gap_ble_cb_event_t e, esp_ble_gap_cb_param_t *p) {
+    this->event_.gap.gap_event = e;
+    memcpy(&this->event_.gap.gap_param, p, sizeof(esp_ble_gap_cb_param_t));
+    this->type_ = GAP;
+  };
+
+  BLEEvent(esp_gattc_cb_event_t e, esp_gatt_if_t i, esp_ble_gattc_cb_param_t *p) {
+    this->event_.gattc.gattc_event = e;
+    this->event_.gattc.gattc_if = i;
+    memcpy(&this->event_.gattc.gattc_param, p, sizeof(esp_ble_gattc_cb_param_t));
+    // Need to also make a copy of relevant event data.
+    switch (e) {
+      case ESP_GATTC_NOTIFY_EVT:
+        this->data.assign(p->notify.value, p->notify.value + p->notify.value_len);
+        this->event_.gattc.gattc_param.notify.value = this->data.data();
+        break;
+      case ESP_GATTC_READ_CHAR_EVT:
+      case ESP_GATTC_READ_DESCR_EVT:
+        this->data.assign(p->read.value, p->read.value + p->read.value_len);
+        this->event_.gattc.gattc_param.read.value = this->data.data();
+        break;
+      default:
+        break;
+    }
+    this->type_ = GATTC;
+  };
+
+  BLEEvent(esp_gatts_cb_event_t e, esp_gatt_if_t i, esp_ble_gatts_cb_param_t *p) {
+    this->event_.gatts.gatts_event = e;
+    this->event_.gatts.gatts_if = i;
+    memcpy(&this->event_.gatts.gatts_param, p, sizeof(esp_ble_gatts_cb_param_t));
+    // Need to also make a copy of relevant event data.
+    switch (e) {
+      case ESP_GATTS_WRITE_EVT:
+        this->data.assign(p->write.value, p->write.value + p->write.len);
+        this->event_.gatts.gatts_param.write.value = this->data.data();
+        break;
+      default:
+        break;
+    }
+    this->type_ = GATTS;
+  };
+
+  union {
+    // NOLINTNEXTLINE(readability-identifier-naming)
+    struct gap_event {
+      esp_gap_ble_cb_event_t gap_event;
+      esp_ble_gap_cb_param_t gap_param;
+    } gap;
+
+    // NOLINTNEXTLINE(readability-identifier-naming)
+    struct gattc_event {
+      esp_gattc_cb_event_t gattc_event;
+      esp_gatt_if_t gattc_if;
+      esp_ble_gattc_cb_param_t gattc_param;
+    } gattc;
+
+    // NOLINTNEXTLINE(readability-identifier-naming)
+    struct gatts_event {
+      esp_gatts_cb_event_t gatts_event;
+      esp_gatt_if_t gatts_if;
+      esp_ble_gatts_cb_param_t gatts_param;
+    } gatts;
+  } event_;
+
+  std::vector<uint8_t> data{};
+  // NOLINTNEXTLINE(readability-identifier-naming)
+  enum ble_event_t : uint8_t {
+    GAP,
+    GATTC,
+    GATTS,
+  } type_;
+};
+
+}  // namespace esp32_ble
+}  // namespace esphome
+
+#endif