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Avoid parsing characteristics and descriptors to reduce memory pressure (#4109)

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This commit is contained in:
J. Nick Koston 2022-11-28 18:16:25 -10:00 committed by GitHub
parent d5ff8f6117
commit bc5c2d4eb4
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 29 additions and 14 deletions
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4
esphome/components/bluetooth_proxy/bluetooth_connection.cpp
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@ -105,8 +105,6 @@ bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_ga
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,
@ -122,8 +120,6 @@ bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_ga
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);

39
esphome/components/esp32_ble_client/ble_client_base.cpp
View File

@ -9,6 +9,13 @@ namespace esphome {
namespace esp32_ble_client {
static const char *const TAG = "esp32_ble_client";
static const esp_bt_uuid_t NOTIFY_DESC_UUID = {
.len = ESP_UUID_LEN_16,
.uuid =
{
.uuid16 = ESP_GATT_UUID_CHAR_CLIENT_CONFIG,
},
};
void BLEClientBase::setup() {
static uint8_t connection_index = 0;
@ -173,21 +180,33 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
break;
}
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
auto *descr = this->get_config_descriptor(param->reg_for_notify.handle);
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, "[%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());
esp_gattc_descr_elem_t desc_result;
uint16_t count = 1;
esp_gatt_status_t descr_status =
esp_ble_gattc_get_descr_by_char_handle(this->gattc_if_, this->connection_index_, param->reg_for_notify.handle,
NOTIFY_DESC_UUID, &desc_result, &count);
if (descr_status != ESP_GATT_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_get_descr_by_char_handle error, status=%d", this->connection_index_,
this->address_str_.c_str(), descr_status);
break;
}
esp_gattc_char_elem_t char_result;
esp_gatt_status_t char_status =
esp_ble_gattc_get_all_char(this->gattc_if_, this->connection_index_, param->reg_for_notify.handle,
param->reg_for_notify.handle, &char_result, &count, 0);
if (char_status != ESP_GATT_OK) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_get_all_char error, status=%d", this->connection_index_,
this->address_str_.c_str(), char_status);
break;
}
/*
1 = notify
2 = indicate
*/
uint16_t notify_en = descr->characteristic->properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY ? 1 : 2;
auto status =
esp_ble_gattc_write_char_descr(this->gattc_if_, this->conn_id_, descr->handle, sizeof(notify_en),
uint16_t notify_en = char_result.properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY ? 1 : 2;
esp_err_t status =
esp_ble_gattc_write_char_descr(this->gattc_if_, this->conn_id_, desc_result.handle, sizeof(notify_en),
(uint8_t *) &notify_en, ESP_GATT_WRITE_TYPE_RSP, ESP_GATT_AUTH_REQ_NONE);
if (status) {
ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_write_char_descr error, status=%d", this->connection_index_,
@ -320,7 +339,7 @@ BLEDescriptor *BLEClientBase::get_config_descriptor(uint16_t handle) {
if (!chr->parsed)
chr->parse_descriptors();
for (auto &desc : chr->descriptors) {
if (desc->uuid.get_uuid().uuid.uuid16 == 0x2902)
if (desc->uuid.get_uuid().uuid.uuid16 == ESP_GATT_UUID_CHAR_CLIENT_CONFIG)
return desc;
}
}