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att_server: extract att_server_prepare_server_message that uses eatt bearer if available

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This commit is contained in:
Matthias Ringwald 2023-06-08 15:16:56 +02:00
parent 40f8d8f21f
commit d74c7b2b8d
1 changed files with 40 additions and 23 deletions
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63
src/ble/att_server.c
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@ -1346,6 +1346,43 @@ uint8_t att_server_request_to_send_indication(btstack_context_callback_registrat
}
}
static uint8_t att_server_prepare_server_message(hci_con_handle_t con_handle, att_server_t ** out_att_server, att_connection_t ** out_att_connection, uint8_t ** out_packet_buffer){
att_server_t * att_server = NULL;
att_connection_t * att_connection = NULL;
uint8_t * packet_buffer = NULL;
// prefer enhanced bearer
#ifdef ENABLE_GATT_OVER_EATT
att_server_eatt_bearer_t * eatt_bearer = att_server_eatt_bearer_for_con_handle(con_handle);
if (eatt_bearer != NULL){
att_server = &eatt_bearer->att_server;
att_connection = &eatt_bearer->att_connection;
packet_buffer = eatt_bearer->send_buffer;
} else
#endif
{
hci_connection_t *hci_connection = hci_connection_for_handle(con_handle);
if (hci_connection != NULL) {
att_server = &hci_connection->att_server;
att_connection = &hci_connection->att_connection;
}
}
if (att_server == NULL) return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
if (!att_server_can_send_packet(att_server, att_connection)) return BTSTACK_ACL_BUFFERS_FULL;
if (packet_buffer == NULL){
l2cap_reserve_packet_buffer();
packet_buffer = l2cap_get_outgoing_buffer();
}
*out_att_connection = att_connection;
*out_att_server = att_server;
*out_packet_buffer = packet_buffer;
return ERROR_CODE_SUCCESS;
}
uint8_t att_server_notify(hci_con_handle_t con_handle, uint16_t attribute_handle, const uint8_t *value, uint16_t value_len){
hci_connection_t * hci_connection = hci_connection_for_handle(con_handle);
if (!hci_connection) return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
@ -1377,29 +1414,9 @@ uint8_t att_server_multiple_notify(hci_con_handle_t con_handle, uint8_t num_attr
att_connection_t * att_connection = NULL;
uint8_t * packet_buffer = NULL;
// prfer enhanced bearer
#ifdef ENABLE_GATT_OVER_EATT
att_server_eatt_bearer_t * eatt_bearer = att_server_eatt_bearer_for_con_handle(con_handle);
if (eatt_bearer != NULL){
att_server = &eatt_bearer->att_server;
att_connection = &eatt_bearer->att_connection;
packet_buffer = eatt_bearer->send_buffer;
} else
#endif
{
hci_connection_t *hci_connection = hci_connection_for_handle(con_handle);
if (hci_connection != NULL) {
att_server = &hci_connection->att_server;
att_connection = &hci_connection->att_connection;
}
}
if (att_server == NULL) return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
if (!att_server_can_send_packet(att_server, att_connection)) return BTSTACK_ACL_BUFFERS_FULL;
if (packet_buffer == NULL){
l2cap_reserve_packet_buffer();
packet_buffer = l2cap_get_outgoing_buffer();
uint8_t status = att_server_prepare_server_message(con_handle, &att_server, &att_connection, &packet_buffer);
if (status != ERROR_CODE_SUCCESS){
return status;
}
uint16_t size = att_prepare_handle_value_multiple_notification(att_connection, num_attributes, attribute_handles, values_data, values_len, packet_buffer);