11f504dbdSmatthias.ringwald /* 2a0c35809S[email protected] * Copyright (C) 2014 BlueKitchen GmbH 31713bceaSmatthias.ringwald * 41713bceaSmatthias.ringwald * Redistribution and use in source and binary forms, with or without 51713bceaSmatthias.ringwald * modification, are permitted provided that the following conditions 61713bceaSmatthias.ringwald * are met: 71713bceaSmatthias.ringwald * 81713bceaSmatthias.ringwald * 1. Redistributions of source code must retain the above copyright 91713bceaSmatthias.ringwald * notice, this list of conditions and the following disclaimer. 101713bceaSmatthias.ringwald * 2. Redistributions in binary form must reproduce the above copyright 111713bceaSmatthias.ringwald * notice, this list of conditions and the following disclaimer in the 121713bceaSmatthias.ringwald * documentation and/or other materials provided with the distribution. 131713bceaSmatthias.ringwald * 3. Neither the name of the copyright holders nor the names of 141713bceaSmatthias.ringwald * contributors may be used to endorse or promote products derived 151713bceaSmatthias.ringwald * from this software without specific prior written permission. 166b64433eSmatthias.ringwald * 4. Any redistribution, use, or modification is done solely for 176b64433eSmatthias.ringwald * personal benefit and not for any commercial purpose or for 186b64433eSmatthias.ringwald * monetary gain. 191713bceaSmatthias.ringwald * 20a0c35809S[email protected] * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 211713bceaSmatthias.ringwald * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 221713bceaSmatthias.ringwald * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 231713bceaSmatthias.ringwald * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 241713bceaSmatthias.ringwald * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 251713bceaSmatthias.ringwald * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 261713bceaSmatthias.ringwald * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 271713bceaSmatthias.ringwald * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 281713bceaSmatthias.ringwald * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 291713bceaSmatthias.ringwald * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 301713bceaSmatthias.ringwald * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311713bceaSmatthias.ringwald * SUCH DAMAGE. 321713bceaSmatthias.ringwald * 33a0c35809S[email protected] * Please inquire about commercial licensing options at 34a0c35809S[email protected] * [email protected] 356b64433eSmatthias.ringwald * 361713bceaSmatthias.ringwald */ 371713bceaSmatthias.ringwald 381713bceaSmatthias.ringwald /* 391f504dbdSmatthias.ringwald * hci.c 401f504dbdSmatthias.ringwald * 411f504dbdSmatthias.ringwald * Created by Matthias Ringwald on 4/29/09. 421f504dbdSmatthias.ringwald * 431f504dbdSmatthias.ringwald */ 441f504dbdSmatthias.ringwald 457907f069SMatthias Ringwald #include "btstack_config.h" 4628171530Smatthias.ringwald 477f2435e6Smatthias.ringwald 4806b9e820SMatthias Ringwald #ifdef ENABLE_CLASSIC 49aec7654dSMatthias Ringwald #ifdef HAVE_EMBEDDED_TICK 508f2a52f4SMatthias Ringwald #include "btstack_run_loop_embedded.h" 51a484130cSMatthias Ringwald #endif 5206b9e820SMatthias Ringwald #endif 53a484130cSMatthias Ringwald 544a3574a1SMatthias Ringwald #ifdef HAVE_PLATFORM_IPHONE_OS 55d0b87befSMatthias Ringwald #include "../port/ios/src/btstack_control_iphone.h" 564a3574a1SMatthias Ringwald #endif 574a3574a1SMatthias Ringwald 58a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 59472a5742SMatthias Ringwald #include "gap.h" 6045c102fdSMatthias Ringwald #endif 6145c102fdSMatthias Ringwald 6293b8dc03Smatthias.ringwald #include <stdarg.h> 6393b8dc03Smatthias.ringwald #include <string.h> 6456fe0872Smatthias.ringwald #include <stdio.h> 655838a2edSMatthias Ringwald #include <inttypes.h> 667f2435e6Smatthias.ringwald 6716ece135SMatthias Ringwald #include "btstack_debug.h" 680e2df43fSMatthias Ringwald #include "btstack_event.h" 694a3574a1SMatthias Ringwald #include "btstack_linked_list.h" 704a3574a1SMatthias Ringwald #include "btstack_memory.h" 714a3574a1SMatthias Ringwald #include "gap.h" 724a3574a1SMatthias Ringwald #include "hci.h" 734a3574a1SMatthias Ringwald #include "hci_cmd.h" 74d8905019Smatthias.ringwald #include "hci_dump.h" 7593b8dc03Smatthias.ringwald 761b0e3922Smatthias.ringwald 77169f8b28Smatthias.ringwald #define HCI_CONNECTION_TIMEOUT_MS 10000 78659d758cSMatthias Ringwald #define HCI_RESET_RESEND_TIMEOUT_MS 200 79ee091cf1Smatthias.ringwald 80b83d5eabSMatthias Ringwald // prototypes 8135454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 82758b46ceSmatthias.ringwald static void hci_update_scan_enable(void); 8335454696SMatthias Ringwald static void hci_emit_discoverable_enabled(uint8_t enabled); 8435454696SMatthias Ringwald static int hci_local_ssp_activated(void); 8535454696SMatthias Ringwald static int hci_remote_ssp_supported(hci_con_handle_t con_handle); 8635454696SMatthias Ringwald static void hci_notify_if_sco_can_send_now(void); 8735454696SMatthias Ringwald static void hci_emit_connection_complete(bd_addr_t address, hci_con_handle_t con_handle, uint8_t status); 88a00031e2S[email protected] static gap_security_level_t gap_security_level_for_connection(hci_connection_t * connection); 8935454696SMatthias Ringwald static void hci_emit_security_level(hci_con_handle_t con_handle, gap_security_level_t level); 90ec820d77SMatthias Ringwald static void hci_connection_timeout_handler(btstack_timer_source_t *timer); 9196a45072S[email protected] static void hci_connection_timestamp(hci_connection_t *connection); 9252db98b2SMatthias Ringwald static void hci_emit_l2cap_check_timeout(hci_connection_t *conn); 9352db98b2SMatthias Ringwald #endif 947586ee35S[email protected] static int hci_power_control_on(void); 957586ee35S[email protected] static void hci_power_control_off(void); 966da48142SSean Wilson static void hci_state_reset(void); 97fc64f94aSMatthias Ringwald static void hci_emit_disconnection_complete(hci_con_handle_t con_handle, uint8_t reason); 98b83d5eabSMatthias Ringwald static void hci_emit_nr_connections_changed(void); 99b83d5eabSMatthias Ringwald static void hci_emit_hci_open_failed(void); 100b83d5eabSMatthias Ringwald static void hci_emit_dedicated_bonding_result(bd_addr_t address, uint8_t status); 101b83d5eabSMatthias Ringwald static void hci_emit_event(uint8_t * event, uint16_t size, int dump); 102b83d5eabSMatthias Ringwald static void hci_emit_acl_packet(uint8_t * packet, uint16_t size); 10395d71764SMatthias Ringwald static void hci_run(void); 10495d71764SMatthias Ringwald static int hci_is_le_connection(hci_connection_t * connection); 10595d71764SMatthias Ringwald static int hci_number_free_acl_slots_for_connection_type( bd_addr_type_t address_type); 1065d509858SMatthias Ringwald 107a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 108e8c8828eSMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 10939677e66SMatthias Ringwald // called from test/ble_client/advertising_data_parser.c 11039677e66SMatthias Ringwald void le_handle_advertisement_report(uint8_t *packet, int size); 11142ff5ba1SMatthias Ringwald static void hci_remove_from_whitelist(bd_addr_type_t address_type, bd_addr_t address); 1125d509858SMatthias Ringwald #endif 113d70217a2SMatthias Ringwald #endif 114758b46ceSmatthias.ringwald 11506b35ec0Smatthias.ringwald // the STACK is here 1163a9fb326S[email protected] #ifndef HAVE_MALLOC 1173a9fb326S[email protected] static hci_stack_t hci_stack_static; 1183a9fb326S[email protected] #endif 1193a9fb326S[email protected] static hci_stack_t * hci_stack = NULL; 12016833f0aSmatthias.ringwald 1211c9e5e9dSMatthias Ringwald #ifdef ENABLE_CLASSIC 12266fb9560S[email protected] // test helper 12366fb9560S[email protected] static uint8_t disable_l2cap_timeouts = 0; 1241c9e5e9dSMatthias Ringwald #endif 12566fb9560S[email protected] 12696a45072S[email protected] /** 12796a45072S[email protected] * create connection for given address 12896a45072S[email protected] * 12996a45072S[email protected] * @return connection OR NULL, if no memory left 13096a45072S[email protected] */ 13196a45072S[email protected] static hci_connection_t * create_connection_for_bd_addr_and_type(bd_addr_t addr, bd_addr_type_t addr_type){ 1321a06f663S[email protected] log_info("create_connection_for_addr %s, type %x", bd_addr_to_str(addr), addr_type); 133bb69aaaeS[email protected] hci_connection_t * conn = btstack_memory_hci_connection_get(); 13496a45072S[email protected] if (!conn) return NULL; 135c91d150bS[email protected] memset(conn, 0, sizeof(hci_connection_t)); 136058e3d6bSMatthias Ringwald bd_addr_copy(conn->address, addr); 13796a45072S[email protected] conn->address_type = addr_type; 13896a45072S[email protected] conn->con_handle = 0xffff; 13996a45072S[email protected] conn->authentication_flags = AUTH_FLAGS_NONE; 14096a45072S[email protected] conn->bonding_flags = 0; 14196a45072S[email protected] conn->requested_security_level = LEVEL_0; 14252db98b2SMatthias Ringwald #ifdef ENABLE_CLASSIC 14391a977e8SMatthias Ringwald btstack_run_loop_set_timer_handler(&conn->timeout, hci_connection_timeout_handler); 14491a977e8SMatthias Ringwald btstack_run_loop_set_timer_context(&conn->timeout, conn); 14596a45072S[email protected] hci_connection_timestamp(conn); 14652db98b2SMatthias Ringwald #endif 14796a45072S[email protected] conn->acl_recombination_length = 0; 14896a45072S[email protected] conn->acl_recombination_pos = 0; 14996a45072S[email protected] conn->num_acl_packets_sent = 0; 1501a06f663S[email protected] conn->num_sco_packets_sent = 0; 151da886c03S[email protected] conn->le_con_parameter_update_state = CON_PARAMETER_UPDATE_NONE; 152665d90f2SMatthias Ringwald btstack_linked_list_add(&hci_stack->connections, (btstack_linked_item_t *) conn); 15396a45072S[email protected] return conn; 15496a45072S[email protected] } 15566fb9560S[email protected] 156da886c03S[email protected] 157da886c03S[email protected] /** 158da886c03S[email protected] * get le connection parameter range 159da886c03S[email protected] * 160da886c03S[email protected] * @return le connection parameter range struct 161da886c03S[email protected] */ 1624ced4e8cSMatthias Ringwald void gap_get_connection_parameter_range(le_connection_parameter_range_t * range){ 1634ced4e8cSMatthias Ringwald *range = hci_stack->le_connection_parameter_range; 164da886c03S[email protected] } 165da886c03S[email protected] 166da886c03S[email protected] /** 167da886c03S[email protected] * set le connection parameter range 168da886c03S[email protected] * 169da886c03S[email protected] */ 170da886c03S[email protected] 1714ced4e8cSMatthias Ringwald void gap_set_connection_parameter_range(le_connection_parameter_range_t *range){ 1724ced4e8cSMatthias Ringwald hci_stack->le_connection_parameter_range = *range; 173da886c03S[email protected] } 174da886c03S[email protected] 175da886c03S[email protected] /** 176da886c03S[email protected] * get hci connections iterator 177da886c03S[email protected] * 178da886c03S[email protected] * @return hci connections iterator 179da886c03S[email protected] */ 180da886c03S[email protected] 181665d90f2SMatthias Ringwald void hci_connections_get_iterator(btstack_linked_list_iterator_t *it){ 182665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(it, &hci_stack->connections); 183da886c03S[email protected] } 184da886c03S[email protected] 18597addcc5Smatthias.ringwald /** 186ee091cf1Smatthias.ringwald * get connection for a given handle 187ee091cf1Smatthias.ringwald * 188ee091cf1Smatthias.ringwald * @return connection OR NULL, if not found 189ee091cf1Smatthias.ringwald */ 1905061f3afS[email protected] hci_connection_t * hci_connection_for_handle(hci_con_handle_t con_handle){ 191665d90f2SMatthias Ringwald btstack_linked_list_iterator_t it; 192665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(&it, &hci_stack->connections); 193665d90f2SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&it)){ 194665d90f2SMatthias Ringwald hci_connection_t * item = (hci_connection_t *) btstack_linked_list_iterator_next(&it); 1953ac2fe56S[email protected] if ( item->con_handle == con_handle ) { 196da886c03S[email protected] return item; 197ee091cf1Smatthias.ringwald } 198ee091cf1Smatthias.ringwald } 199ee091cf1Smatthias.ringwald return NULL; 200ee091cf1Smatthias.ringwald } 201ee091cf1Smatthias.ringwald 20296a45072S[email protected] /** 20396a45072S[email protected] * get connection for given address 20496a45072S[email protected] * 20596a45072S[email protected] * @return connection OR NULL, if not found 20696a45072S[email protected] */ 2072e77e513S[email protected] hci_connection_t * hci_connection_for_bd_addr_and_type(bd_addr_t addr, bd_addr_type_t addr_type){ 208665d90f2SMatthias Ringwald btstack_linked_list_iterator_t it; 209665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(&it, &hci_stack->connections); 210665d90f2SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&it)){ 211665d90f2SMatthias Ringwald hci_connection_t * connection = (hci_connection_t *) btstack_linked_list_iterator_next(&it); 21296a45072S[email protected] if (connection->address_type != addr_type) continue; 21396a45072S[email protected] if (memcmp(addr, connection->address, 6) != 0) continue; 21462bda3fbS[email protected] return connection; 21562bda3fbS[email protected] } 21662bda3fbS[email protected] return NULL; 21762bda3fbS[email protected] } 21862bda3fbS[email protected] 21952db98b2SMatthias Ringwald 22052db98b2SMatthias Ringwald #ifdef ENABLE_CLASSIC 22152db98b2SMatthias Ringwald 222ee752bb8SMatthias Ringwald #ifdef ENABLE_SCO_OVER_HCI 223ee752bb8SMatthias Ringwald static int hci_number_sco_connections(void){ 224ee752bb8SMatthias Ringwald int connections = 0; 225ee752bb8SMatthias Ringwald btstack_linked_list_iterator_t it; 226ee752bb8SMatthias Ringwald btstack_linked_list_iterator_init(&it, &hci_stack->connections); 227ee752bb8SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&it)){ 228ee752bb8SMatthias Ringwald hci_connection_t * connection = (hci_connection_t *) btstack_linked_list_iterator_next(&it); 229ee752bb8SMatthias Ringwald if (connection->address_type != BD_ADDR_TYPE_SCO) continue; 230ee752bb8SMatthias Ringwald connections++; 231ee752bb8SMatthias Ringwald } 232ee752bb8SMatthias Ringwald return connections; 233ee752bb8SMatthias Ringwald } 234ee752bb8SMatthias Ringwald #endif 235ee752bb8SMatthias Ringwald 236ec820d77SMatthias Ringwald static void hci_connection_timeout_handler(btstack_timer_source_t *timer){ 23791a977e8SMatthias Ringwald hci_connection_t * connection = (hci_connection_t *) btstack_run_loop_get_timer_context(timer); 238aec7654dSMatthias Ringwald #ifdef HAVE_EMBEDDED_TICK 239528a4a3bSMatthias Ringwald if (btstack_run_loop_embedded_get_ticks() > connection->timestamp + btstack_run_loop_embedded_ticks_for_ms(HCI_CONNECTION_TIMEOUT_MS)){ 240c785ef68Smatthias.ringwald // connections might be timed out 241c785ef68Smatthias.ringwald hci_emit_l2cap_check_timeout(connection); 242c785ef68Smatthias.ringwald } 243f316a845SMatthias Ringwald #else 244528a4a3bSMatthias Ringwald if (btstack_run_loop_get_time_ms() > connection->timestamp + HCI_CONNECTION_TIMEOUT_MS){ 2455f26aadcSMatthias Ringwald // connections might be timed out 2465f26aadcSMatthias Ringwald hci_emit_l2cap_check_timeout(connection); 2475f26aadcSMatthias Ringwald } 2485f26aadcSMatthias Ringwald #endif 249c785ef68Smatthias.ringwald } 250ee091cf1Smatthias.ringwald 251ee091cf1Smatthias.ringwald static void hci_connection_timestamp(hci_connection_t *connection){ 252aec7654dSMatthias Ringwald #ifdef HAVE_EMBEDDED_TICK 253528a4a3bSMatthias Ringwald connection->timestamp = btstack_run_loop_embedded_get_ticks(); 254f316a845SMatthias Ringwald #else 255528a4a3bSMatthias Ringwald connection->timestamp = btstack_run_loop_get_time_ms(); 2565f26aadcSMatthias Ringwald #endif 257ee091cf1Smatthias.ringwald } 258ee091cf1Smatthias.ringwald 25928ca2b46S[email protected] inline static void connectionSetAuthenticationFlags(hci_connection_t * conn, hci_authentication_flags_t flags){ 26028ca2b46S[email protected] conn->authentication_flags = (hci_authentication_flags_t)(conn->authentication_flags | flags); 26128ca2b46S[email protected] } 26228ca2b46S[email protected] 26335454696SMatthias Ringwald 26428ca2b46S[email protected] inline static void connectionClearAuthenticationFlags(hci_connection_t * conn, hci_authentication_flags_t flags){ 26528ca2b46S[email protected] conn->authentication_flags = (hci_authentication_flags_t)(conn->authentication_flags & ~flags); 26628ca2b46S[email protected] } 26728ca2b46S[email protected] 26843bfb1bdSmatthias.ringwald /** 26980ca58a0Smatthias.ringwald * add authentication flags and reset timer 27096a45072S[email protected] * @note: assumes classic connection 2712e77e513S[email protected] * @note: bd_addr is passed in as litle endian uint8_t * as it is called from parsing packets 2727fde4af9Smatthias.ringwald */ 2737fde4af9Smatthias.ringwald static void hci_add_connection_flags_for_flipped_bd_addr(uint8_t *bd_addr, hci_authentication_flags_t flags){ 2747fde4af9Smatthias.ringwald bd_addr_t addr; 275724d70a2SMatthias Ringwald reverse_bd_addr(bd_addr, addr); 2762e77e513S[email protected] hci_connection_t * conn = hci_connection_for_bd_addr_and_type(addr, BD_ADDR_TYPE_CLASSIC); 2777fde4af9Smatthias.ringwald if (conn) { 27828ca2b46S[email protected] connectionSetAuthenticationFlags(conn, flags); 27980ca58a0Smatthias.ringwald hci_connection_timestamp(conn); 2807fde4af9Smatthias.ringwald } 2817fde4af9Smatthias.ringwald } 2827fde4af9Smatthias.ringwald 28380ca58a0Smatthias.ringwald int hci_authentication_active_for_handle(hci_con_handle_t handle){ 2845061f3afS[email protected] hci_connection_t * conn = hci_connection_for_handle(handle); 28580ca58a0Smatthias.ringwald if (!conn) return 0; 2866724cd9eS[email protected] if (conn->authentication_flags & LEGACY_PAIRING_ACTIVE) return 1; 2876724cd9eS[email protected] if (conn->authentication_flags & SSP_PAIRING_ACTIVE) return 1; 2886724cd9eS[email protected] return 0; 28980ca58a0Smatthias.ringwald } 29080ca58a0Smatthias.ringwald 29115a95bd5SMatthias Ringwald void gap_drop_link_key_for_bd_addr(bd_addr_t addr){ 29255597469SMatthias Ringwald if (!hci_stack->link_key_db) return; 2932bacf595SMatthias Ringwald log_info("gap_drop_link_key_for_bd_addr: %s", bd_addr_to_str(addr)); 294a98592bcSMatthias Ringwald hci_stack->link_key_db->delete_link_key(addr); 295c12e46e7Smatthias.ringwald } 29655597469SMatthias Ringwald 29755597469SMatthias Ringwald void gap_store_link_key_for_bd_addr(bd_addr_t addr, link_key_t link_key, link_key_type_t type){ 29855597469SMatthias Ringwald if (!hci_stack->link_key_db) return; 2992bacf595SMatthias Ringwald log_info("gap_store_link_key_for_bd_addr: %s, type %u", bd_addr_to_str(addr), type); 30055597469SMatthias Ringwald hci_stack->link_key_db->put_link_key(addr, link_key, type); 301c12e46e7Smatthias.ringwald } 30235454696SMatthias Ringwald #endif 303c12e46e7Smatthias.ringwald 30495d71764SMatthias Ringwald static int hci_is_le_connection(hci_connection_t * connection){ 3050bf6344aS[email protected] return connection->address_type == BD_ADDR_TYPE_LE_PUBLIC || 3060bf6344aS[email protected] connection->address_type == BD_ADDR_TYPE_LE_RANDOM; 3070bf6344aS[email protected] } 3080bf6344aS[email protected] 3097fde4af9Smatthias.ringwald /** 31043bfb1bdSmatthias.ringwald * count connections 31143bfb1bdSmatthias.ringwald */ 31240d1c7a4Smatthias.ringwald static int nr_hci_connections(void){ 31356c253c9Smatthias.ringwald int count = 0; 314665d90f2SMatthias Ringwald btstack_linked_item_t *it; 315665d90f2SMatthias Ringwald for (it = (btstack_linked_item_t *) hci_stack->connections; it ; it = it->next, count++); 31643bfb1bdSmatthias.ringwald return count; 31743bfb1bdSmatthias.ringwald } 318c8e4258aSmatthias.ringwald 31995d71764SMatthias Ringwald static int hci_number_free_acl_slots_for_connection_type(bd_addr_type_t address_type){ 320ee303eddS[email protected] 321f04a0c31SMatthias Ringwald unsigned int num_packets_sent_classic = 0; 322f04a0c31SMatthias Ringwald unsigned int num_packets_sent_le = 0; 323ee303eddS[email protected] 324665d90f2SMatthias Ringwald btstack_linked_item_t *it; 325665d90f2SMatthias Ringwald for (it = (btstack_linked_item_t *) hci_stack->connections; it ; it = it->next){ 326998906cdSmatthias.ringwald hci_connection_t * connection = (hci_connection_t *) it; 327ee303eddS[email protected] if (connection->address_type == BD_ADDR_TYPE_CLASSIC){ 328ee303eddS[email protected] num_packets_sent_classic += connection->num_acl_packets_sent; 329ee303eddS[email protected] } else { 330ee303eddS[email protected] num_packets_sent_le += connection->num_acl_packets_sent; 331ee303eddS[email protected] } 332ee303eddS[email protected] } 333d999b54eSMatthias Ringwald log_debug("ACL classic buffers: %u used of %u", num_packets_sent_classic, hci_stack->acl_packets_total_num); 334ee303eddS[email protected] int free_slots_classic = hci_stack->acl_packets_total_num - num_packets_sent_classic; 335ee303eddS[email protected] int free_slots_le = 0; 336ee303eddS[email protected] 337ee303eddS[email protected] if (free_slots_classic < 0){ 3389da54300S[email protected] log_error("hci_number_free_acl_slots: outgoing classic packets (%u) > total classic packets (%u)", num_packets_sent_classic, hci_stack->acl_packets_total_num); 339998906cdSmatthias.ringwald return 0; 340998906cdSmatthias.ringwald } 341ee303eddS[email protected] 342ee303eddS[email protected] if (hci_stack->le_acl_packets_total_num){ 343ee303eddS[email protected] // if we have LE slots, they are used 344ee303eddS[email protected] free_slots_le = hci_stack->le_acl_packets_total_num - num_packets_sent_le; 345ee303eddS[email protected] if (free_slots_le < 0){ 3469da54300S[email protected] log_error("hci_number_free_acl_slots: outgoing le packets (%u) > total le packets (%u)", num_packets_sent_le, hci_stack->le_acl_packets_total_num); 347ee303eddS[email protected] return 0; 348998906cdSmatthias.ringwald } 349ee303eddS[email protected] } else { 350ee303eddS[email protected] // otherwise, classic slots are used for LE, too 351ee303eddS[email protected] free_slots_classic -= num_packets_sent_le; 352ee303eddS[email protected] if (free_slots_classic < 0){ 3539da54300S[email protected] log_error("hci_number_free_acl_slots: outgoing classic + le packets (%u + %u) > total packets (%u)", num_packets_sent_classic, num_packets_sent_le, hci_stack->acl_packets_total_num); 354ee303eddS[email protected] return 0; 355ee303eddS[email protected] } 356ee303eddS[email protected] } 357ee303eddS[email protected] 358ee303eddS[email protected] switch (address_type){ 359ee303eddS[email protected] case BD_ADDR_TYPE_UNKNOWN: 3602125de09SMatthias Ringwald log_error("hci_number_free_acl_slots: unknown address type"); 361ee303eddS[email protected] return 0; 362ee303eddS[email protected] 363ee303eddS[email protected] case BD_ADDR_TYPE_CLASSIC: 364ee303eddS[email protected] return free_slots_classic; 365ee303eddS[email protected] 366ee303eddS[email protected] default: 367cb00d3aaS[email protected] if (hci_stack->le_acl_packets_total_num){ 368ee303eddS[email protected] return free_slots_le; 369ee303eddS[email protected] } 370cb00d3aaS[email protected] return free_slots_classic; 371cb00d3aaS[email protected] } 372998906cdSmatthias.ringwald } 373998906cdSmatthias.ringwald 3742125de09SMatthias Ringwald int hci_number_free_acl_slots_for_handle(hci_con_handle_t con_handle){ 3752125de09SMatthias Ringwald // get connection type 3762125de09SMatthias Ringwald hci_connection_t * connection = hci_connection_for_handle(con_handle); 3772125de09SMatthias Ringwald if (!connection){ 3782125de09SMatthias Ringwald log_error("hci_number_free_acl_slots: handle 0x%04x not in connection list", con_handle); 3792125de09SMatthias Ringwald return 0; 3802125de09SMatthias Ringwald } 3812125de09SMatthias Ringwald return hci_number_free_acl_slots_for_connection_type(connection->address_type); 3822125de09SMatthias Ringwald } 3832125de09SMatthias Ringwald 38435454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 385701e3307SMatthias Ringwald static int hci_number_free_sco_slots(void){ 386f04a0c31SMatthias Ringwald unsigned int num_sco_packets_sent = 0; 387665d90f2SMatthias Ringwald btstack_linked_item_t *it; 388665d90f2SMatthias Ringwald for (it = (btstack_linked_item_t *) hci_stack->connections; it ; it = it->next){ 389e35edcc1S[email protected] hci_connection_t * connection = (hci_connection_t *) it; 390e35edcc1S[email protected] num_sco_packets_sent += connection->num_sco_packets_sent; 391e35edcc1S[email protected] } 392e35edcc1S[email protected] if (num_sco_packets_sent > hci_stack->sco_packets_total_num){ 393701e3307SMatthias Ringwald log_info("hci_number_free_sco_slots:packets (%u) > total packets (%u)", num_sco_packets_sent, hci_stack->sco_packets_total_num); 39444d0e3d5S[email protected] return 0; 39544d0e3d5S[email protected] } 396701e3307SMatthias Ringwald // log_info("hci_number_free_sco_slots u", handle, num_sco_packets_sent); 397e35edcc1S[email protected] return hci_stack->sco_packets_total_num - num_sco_packets_sent; 398e35edcc1S[email protected] } 39935454696SMatthias Ringwald #endif 40044d0e3d5S[email protected] 401ac928cc2S[email protected] // new functions replacing hci_can_send_packet_now[_using_packet_buffer] 402ac928cc2S[email protected] int hci_can_send_command_packet_now(void){ 403ac928cc2S[email protected] if (hci_stack->hci_packet_buffer_reserved) return 0; 404ac928cc2S[email protected] 405ac928cc2S[email protected] // check for async hci transport implementations 406ac928cc2S[email protected] if (hci_stack->hci_transport->can_send_packet_now){ 407ac928cc2S[email protected] if (!hci_stack->hci_transport->can_send_packet_now(HCI_COMMAND_DATA_PACKET)){ 408ac928cc2S[email protected] return 0; 409ac928cc2S[email protected] } 410ac928cc2S[email protected] } 411ac928cc2S[email protected] 412ac928cc2S[email protected] return hci_stack->num_cmd_packets > 0; 413ac928cc2S[email protected] } 414ac928cc2S[email protected] 4159d04d3a7SMatthias Ringwald static int hci_transport_can_send_prepared_packet_now(uint8_t packet_type){ 416ac928cc2S[email protected] // check for async hci transport implementations 4179d04d3a7SMatthias Ringwald if (!hci_stack->hci_transport->can_send_packet_now) return 1; 4189d04d3a7SMatthias Ringwald return hci_stack->hci_transport->can_send_packet_now(packet_type); 419ac928cc2S[email protected] } 4209d04d3a7SMatthias Ringwald 4219d04d3a7SMatthias Ringwald static int hci_can_send_prepared_acl_packet_for_address_type(bd_addr_type_t address_type){ 4229d04d3a7SMatthias Ringwald if (!hci_transport_can_send_prepared_packet_now(HCI_ACL_DATA_PACKET)) return 0; 4239d04d3a7SMatthias Ringwald return hci_number_free_acl_slots_for_connection_type(address_type) > 0; 424ac928cc2S[email protected] } 4259d04d3a7SMatthias Ringwald 4269d04d3a7SMatthias Ringwald int hci_can_send_acl_le_packet_now(void){ 4279d04d3a7SMatthias Ringwald if (hci_stack->hci_packet_buffer_reserved) return 0; 4289d04d3a7SMatthias Ringwald return hci_can_send_prepared_acl_packet_for_address_type(BD_ADDR_TYPE_LE_PUBLIC); 4299d04d3a7SMatthias Ringwald } 4309d04d3a7SMatthias Ringwald 4319d04d3a7SMatthias Ringwald int hci_can_send_prepared_acl_packet_now(hci_con_handle_t con_handle) { 4329d04d3a7SMatthias Ringwald if (!hci_transport_can_send_prepared_packet_now(HCI_ACL_DATA_PACKET)) return 0; 433e79abdd6S[email protected] return hci_number_free_acl_slots_for_handle(con_handle) > 0; 434ac928cc2S[email protected] } 435ac928cc2S[email protected] 436ac928cc2S[email protected] int hci_can_send_acl_packet_now(hci_con_handle_t con_handle){ 437ac928cc2S[email protected] if (hci_stack->hci_packet_buffer_reserved) return 0; 438ac928cc2S[email protected] return hci_can_send_prepared_acl_packet_now(con_handle); 4396b4af23dS[email protected] } 4406b4af23dS[email protected] 44135454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 44235454696SMatthias Ringwald int hci_can_send_acl_classic_packet_now(void){ 44335454696SMatthias Ringwald if (hci_stack->hci_packet_buffer_reserved) return 0; 44435454696SMatthias Ringwald return hci_can_send_prepared_acl_packet_for_address_type(BD_ADDR_TYPE_CLASSIC); 44535454696SMatthias Ringwald } 44635454696SMatthias Ringwald 447701e3307SMatthias Ringwald int hci_can_send_prepared_sco_packet_now(void){ 448d057580eSMatthias Ringwald if (!hci_transport_can_send_prepared_packet_now(HCI_SCO_DATA_PACKET)) return 0; 449ed361f5fSMatthias Ringwald if (!hci_stack->synchronous_flow_control_enabled) return 1; 450701e3307SMatthias Ringwald return hci_number_free_sco_slots() > 0; 45144d0e3d5S[email protected] } 45244d0e3d5S[email protected] 453701e3307SMatthias Ringwald int hci_can_send_sco_packet_now(void){ 454d057580eSMatthias Ringwald if (hci_stack->hci_packet_buffer_reserved) return 0; 455701e3307SMatthias Ringwald return hci_can_send_prepared_sco_packet_now(); 45644d0e3d5S[email protected] } 45744d0e3d5S[email protected] 458d057580eSMatthias Ringwald void hci_request_sco_can_send_now_event(void){ 459d057580eSMatthias Ringwald hci_stack->sco_waiting_for_can_send_now = 1; 460d057580eSMatthias Ringwald hci_notify_if_sco_can_send_now(); 461d057580eSMatthias Ringwald } 46235454696SMatthias Ringwald #endif 463d057580eSMatthias Ringwald 46495d71764SMatthias Ringwald // used for internal checks in l2cap.c 465c8b9416aS[email protected] int hci_is_packet_buffer_reserved(void){ 466c8b9416aS[email protected] return hci_stack->hci_packet_buffer_reserved; 467c8b9416aS[email protected] } 468c8b9416aS[email protected] 4696b4af23dS[email protected] // reserves outgoing packet buffer. @returns 1 if successful 4706b4af23dS[email protected] int hci_reserve_packet_buffer(void){ 4719d14b626S[email protected] if (hci_stack->hci_packet_buffer_reserved) { 4729d14b626S[email protected] log_error("hci_reserve_packet_buffer called but buffer already reserved"); 4739d14b626S[email protected] return 0; 4749d14b626S[email protected] } 4756b4af23dS[email protected] hci_stack->hci_packet_buffer_reserved = 1; 4766b4af23dS[email protected] return 1; 4776b4af23dS[email protected] } 4786b4af23dS[email protected] 47968a0fcf7S[email protected] void hci_release_packet_buffer(void){ 48068a0fcf7S[email protected] hci_stack->hci_packet_buffer_reserved = 0; 48168a0fcf7S[email protected] } 48268a0fcf7S[email protected] 4836b4af23dS[email protected] // assumption: synchronous implementations don't provide can_send_packet_now as they don't keep the buffer after the call 4847f02f414SMatthias Ringwald static int hci_transport_synchronous(void){ 4856b4af23dS[email protected] return hci_stack->hci_transport->can_send_packet_now == NULL; 4866b4af23dS[email protected] } 4876b4af23dS[email protected] 488452cf3bbS[email protected] static int hci_send_acl_packet_fragments(hci_connection_t *connection){ 489452cf3bbS[email protected] 490452cf3bbS[email protected] // log_info("hci_send_acl_packet_fragments %u/%u (con 0x%04x)", hci_stack->acl_fragmentation_pos, hci_stack->acl_fragmentation_total_size, connection->con_handle); 491452cf3bbS[email protected] 492452cf3bbS[email protected] // max ACL data packet length depends on connection type (LE vs. Classic) and available buffers 493452cf3bbS[email protected] uint16_t max_acl_data_packet_length = hci_stack->acl_data_packet_length; 494452cf3bbS[email protected] if (hci_is_le_connection(connection) && hci_stack->le_data_packets_length > 0){ 495452cf3bbS[email protected] max_acl_data_packet_length = hci_stack->le_data_packets_length; 496452cf3bbS[email protected] } 497452cf3bbS[email protected] 498452cf3bbS[email protected] // testing: reduce buffer to minimum 499452cf3bbS[email protected] // max_acl_data_packet_length = 52; 500452cf3bbS[email protected] 501d999b54eSMatthias Ringwald log_debug("hci_send_acl_packet_fragments entered"); 502d999b54eSMatthias Ringwald 503452cf3bbS[email protected] int err; 504452cf3bbS[email protected] // multiple packets could be send on a synchronous HCI transport 505452cf3bbS[email protected] while (1){ 506452cf3bbS[email protected] 507d999b54eSMatthias Ringwald log_debug("hci_send_acl_packet_fragments loop entered"); 508d999b54eSMatthias Ringwald 509452cf3bbS[email protected] // get current data 510452cf3bbS[email protected] const uint16_t acl_header_pos = hci_stack->acl_fragmentation_pos - 4; 511452cf3bbS[email protected] int current_acl_data_packet_length = hci_stack->acl_fragmentation_total_size - hci_stack->acl_fragmentation_pos; 512452cf3bbS[email protected] int more_fragments = 0; 513452cf3bbS[email protected] 514452cf3bbS[email protected] // if ACL packet is larger than Bluetooth packet buffer, only send max_acl_data_packet_length 515452cf3bbS[email protected] if (current_acl_data_packet_length > max_acl_data_packet_length){ 516452cf3bbS[email protected] more_fragments = 1; 517452cf3bbS[email protected] current_acl_data_packet_length = max_acl_data_packet_length; 518452cf3bbS[email protected] } 519452cf3bbS[email protected] 520452cf3bbS[email protected] // copy handle_and_flags if not first fragment and update packet boundary flags to be 01 (continuing fragmnent) 521452cf3bbS[email protected] if (acl_header_pos > 0){ 522f8fbdce0SMatthias Ringwald uint16_t handle_and_flags = little_endian_read_16(hci_stack->hci_packet_buffer, 0); 523452cf3bbS[email protected] handle_and_flags = (handle_and_flags & 0xcfff) | (1 << 12); 524f8fbdce0SMatthias Ringwald little_endian_store_16(hci_stack->hci_packet_buffer, acl_header_pos, handle_and_flags); 525452cf3bbS[email protected] } 526452cf3bbS[email protected] 527452cf3bbS[email protected] // update header len 528f8fbdce0SMatthias Ringwald little_endian_store_16(hci_stack->hci_packet_buffer, acl_header_pos + 2, current_acl_data_packet_length); 529452cf3bbS[email protected] 530452cf3bbS[email protected] // count packet 531452cf3bbS[email protected] connection->num_acl_packets_sent++; 532f04a0c31SMatthias Ringwald log_debug("hci_send_acl_packet_fragments loop before send (more fragments %d)", more_fragments); 533d999b54eSMatthias Ringwald 534d999b54eSMatthias Ringwald // update state for next fragment (if any) as "transport done" might be sent during send_packet already 535d999b54eSMatthias Ringwald if (more_fragments){ 536d999b54eSMatthias Ringwald // update start of next fragment to send 537d999b54eSMatthias Ringwald hci_stack->acl_fragmentation_pos += current_acl_data_packet_length; 538d999b54eSMatthias Ringwald } else { 539d999b54eSMatthias Ringwald // done 540d999b54eSMatthias Ringwald hci_stack->acl_fragmentation_pos = 0; 541d999b54eSMatthias Ringwald hci_stack->acl_fragmentation_total_size = 0; 542d999b54eSMatthias Ringwald } 543452cf3bbS[email protected] 544452cf3bbS[email protected] // send packet 545452cf3bbS[email protected] uint8_t * packet = &hci_stack->hci_packet_buffer[acl_header_pos]; 546452cf3bbS[email protected] const int size = current_acl_data_packet_length + 4; 5475bb5bc3eS[email protected] hci_dump_packet(HCI_ACL_DATA_PACKET, 0, packet, size); 548452cf3bbS[email protected] err = hci_stack->hci_transport->send_packet(HCI_ACL_DATA_PACKET, packet, size); 549452cf3bbS[email protected] 550f04a0c31SMatthias Ringwald log_debug("hci_send_acl_packet_fragments loop after send (more fragments %d)", more_fragments); 551d999b54eSMatthias Ringwald 552452cf3bbS[email protected] // done yet? 553452cf3bbS[email protected] if (!more_fragments) break; 554452cf3bbS[email protected] 555452cf3bbS[email protected] // can send more? 556452cf3bbS[email protected] if (!hci_can_send_prepared_acl_packet_now(connection->con_handle)) return err; 557452cf3bbS[email protected] } 558452cf3bbS[email protected] 559d999b54eSMatthias Ringwald log_debug("hci_send_acl_packet_fragments loop over"); 560452cf3bbS[email protected] 561d051460cS[email protected] // release buffer now for synchronous transport 562203bace6S[email protected] if (hci_transport_synchronous()){ 563452cf3bbS[email protected] hci_release_packet_buffer(); 56463fa3374SMatthias Ringwald // notify upper stack that it might be possible to send again 56563fa3374SMatthias Ringwald uint8_t event[] = { HCI_EVENT_TRANSPORT_PACKET_SENT, 0}; 566d6b06661SMatthias Ringwald hci_emit_event(&event[0], sizeof(event), 0); // don't dump 567452cf3bbS[email protected] } 568452cf3bbS[email protected] 569452cf3bbS[email protected] return err; 570452cf3bbS[email protected] } 571452cf3bbS[email protected] 572826f7347S[email protected] // pre: caller has reserved the packet buffer 573826f7347S[email protected] int hci_send_acl_packet_buffer(int size){ 5747856c818Smatthias.ringwald 575452cf3bbS[email protected] // log_info("hci_send_acl_packet_buffer size %u", size); 576452cf3bbS[email protected] 577826f7347S[email protected] if (!hci_stack->hci_packet_buffer_reserved) { 578826f7347S[email protected] log_error("hci_send_acl_packet_buffer called without reserving packet buffer"); 579826f7347S[email protected] return 0; 580826f7347S[email protected] } 581826f7347S[email protected] 582d713a683S[email protected] uint8_t * packet = hci_stack->hci_packet_buffer; 583d713a683S[email protected] hci_con_handle_t con_handle = READ_ACL_CONNECTION_HANDLE(packet); 584d713a683S[email protected] 585826f7347S[email protected] // check for free places on Bluetooth module 586d713a683S[email protected] if (!hci_can_send_prepared_acl_packet_now(con_handle)) { 587826f7347S[email protected] log_error("hci_send_acl_packet_buffer called but no free ACL buffers on controller"); 58897b61c7bS[email protected] hci_release_packet_buffer(); 58997b61c7bS[email protected] return BTSTACK_ACL_BUFFERS_FULL; 59097b61c7bS[email protected] } 5916218e6f1Smatthias.ringwald 5925061f3afS[email protected] hci_connection_t *connection = hci_connection_for_handle( con_handle); 59397b61c7bS[email protected] if (!connection) { 5945fa0b7cfS[email protected] log_error("hci_send_acl_packet_buffer called but no connection for handle 0x%04x", con_handle); 59597b61c7bS[email protected] hci_release_packet_buffer(); 59697b61c7bS[email protected] return 0; 59797b61c7bS[email protected] } 59852db98b2SMatthias Ringwald 59952db98b2SMatthias Ringwald #ifdef ENABLE_CLASSIC 60056cf178bSmatthias.ringwald hci_connection_timestamp(connection); 60152db98b2SMatthias Ringwald #endif 60256cf178bSmatthias.ringwald 603452cf3bbS[email protected] // hci_dump_packet( HCI_ACL_DATA_PACKET, 0, packet, size); 6047856c818Smatthias.ringwald 605452cf3bbS[email protected] // setup data 606452cf3bbS[email protected] hci_stack->acl_fragmentation_total_size = size; 607452cf3bbS[email protected] hci_stack->acl_fragmentation_pos = 4; // start of L2CAP packet 6086218e6f1Smatthias.ringwald 609452cf3bbS[email protected] return hci_send_acl_packet_fragments(connection); 610ee091cf1Smatthias.ringwald } 611ee091cf1Smatthias.ringwald 61235454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 61344d0e3d5S[email protected] // pre: caller has reserved the packet buffer 61444d0e3d5S[email protected] int hci_send_sco_packet_buffer(int size){ 61544d0e3d5S[email protected] 61644d0e3d5S[email protected] // log_info("hci_send_acl_packet_buffer size %u", size); 61744d0e3d5S[email protected] 61844d0e3d5S[email protected] if (!hci_stack->hci_packet_buffer_reserved) { 61944d0e3d5S[email protected] log_error("hci_send_acl_packet_buffer called without reserving packet buffer"); 62044d0e3d5S[email protected] return 0; 62144d0e3d5S[email protected] } 62244d0e3d5S[email protected] 62344d0e3d5S[email protected] uint8_t * packet = hci_stack->hci_packet_buffer; 6244b3e1e19SMatthias Ringwald 6254b3e1e19SMatthias Ringwald // skip checks in loopback mode 6264b3e1e19SMatthias Ringwald if (!hci_stack->loopback_mode){ 62744d0e3d5S[email protected] hci_con_handle_t con_handle = READ_ACL_CONNECTION_HANDLE(packet); // same for ACL and SCO 62844d0e3d5S[email protected] 62944d0e3d5S[email protected] // check for free places on Bluetooth module 630701e3307SMatthias Ringwald if (!hci_can_send_prepared_sco_packet_now()) { 63144d0e3d5S[email protected] log_error("hci_send_sco_packet_buffer called but no free ACL buffers on controller"); 63244d0e3d5S[email protected] hci_release_packet_buffer(); 63344d0e3d5S[email protected] return BTSTACK_ACL_BUFFERS_FULL; 63444d0e3d5S[email protected] } 63544d0e3d5S[email protected] 636e35edcc1S[email protected] // track send packet in connection struct 637e35edcc1S[email protected] hci_connection_t *connection = hci_connection_for_handle( con_handle); 638e35edcc1S[email protected] if (!connection) { 639e35edcc1S[email protected] log_error("hci_send_sco_packet_buffer called but no connection for handle 0x%04x", con_handle); 640e35edcc1S[email protected] hci_release_packet_buffer(); 641e35edcc1S[email protected] return 0; 642e35edcc1S[email protected] } 643e35edcc1S[email protected] connection->num_sco_packets_sent++; 6444b3e1e19SMatthias Ringwald } 64544d0e3d5S[email protected] 64644d0e3d5S[email protected] hci_dump_packet( HCI_SCO_DATA_PACKET, 0, packet, size); 647543e835cSMatthias Ringwald int err = hci_stack->hci_transport->send_packet(HCI_SCO_DATA_PACKET, packet, size); 648543e835cSMatthias Ringwald 649543e835cSMatthias Ringwald if (hci_transport_synchronous()){ 650543e835cSMatthias Ringwald hci_release_packet_buffer(); 65163fa3374SMatthias Ringwald // notify upper stack that it might be possible to send again 65263fa3374SMatthias Ringwald uint8_t event[] = { HCI_EVENT_TRANSPORT_PACKET_SENT, 0}; 653d6b06661SMatthias Ringwald hci_emit_event(&event[0], sizeof(event), 0); // don't dump 654543e835cSMatthias Ringwald } 655543e835cSMatthias Ringwald 656543e835cSMatthias Ringwald return err; 65744d0e3d5S[email protected] } 65835454696SMatthias Ringwald #endif 65944d0e3d5S[email protected] 66016833f0aSmatthias.ringwald static void acl_handler(uint8_t *packet, int size){ 6617856c818Smatthias.ringwald 662e76a89eeS[email protected] // log_info("acl_handler: size %u", size); 663e76a89eeS[email protected] 6647856c818Smatthias.ringwald // get info 6657856c818Smatthias.ringwald hci_con_handle_t con_handle = READ_ACL_CONNECTION_HANDLE(packet); 6665061f3afS[email protected] hci_connection_t *conn = hci_connection_for_handle(con_handle); 6677856c818Smatthias.ringwald uint8_t acl_flags = READ_ACL_FLAGS(packet); 6687856c818Smatthias.ringwald uint16_t acl_length = READ_ACL_LENGTH(packet); 6697856c818Smatthias.ringwald 6707856c818Smatthias.ringwald // ignore non-registered handle 6717856c818Smatthias.ringwald if (!conn){ 6729da54300S[email protected] log_error( "hci.c: acl_handler called with non-registered handle %u!" , con_handle); 6737856c818Smatthias.ringwald return; 6747856c818Smatthias.ringwald } 6757856c818Smatthias.ringwald 676e76a89eeS[email protected] // assert packet is complete 6779ecc3e17S[email protected] if (acl_length + 4 != size){ 678f04a0c31SMatthias Ringwald log_error("hci.c: acl_handler called with ACL packet of wrong size %d, expected %u => dropping packet", size, acl_length + 4); 679e76a89eeS[email protected] return; 680e76a89eeS[email protected] } 681e76a89eeS[email protected] 68252db98b2SMatthias Ringwald #ifdef ENABLE_CLASSIC 6837856c818Smatthias.ringwald // update idle timestamp 6847856c818Smatthias.ringwald hci_connection_timestamp(conn); 68552db98b2SMatthias Ringwald #endif 6867856c818Smatthias.ringwald 6877856c818Smatthias.ringwald // handle different packet types 6887856c818Smatthias.ringwald switch (acl_flags & 0x03) { 6897856c818Smatthias.ringwald 6907856c818Smatthias.ringwald case 0x01: // continuation fragment 6917856c818Smatthias.ringwald 6920ca847afS[email protected] // sanity checks 6937856c818Smatthias.ringwald if (conn->acl_recombination_pos == 0) { 6949da54300S[email protected] log_error( "ACL Cont Fragment but no first fragment for handle 0x%02x", con_handle); 6957856c818Smatthias.ringwald return; 6967856c818Smatthias.ringwald } 6970ca847afS[email protected] if (conn->acl_recombination_pos + acl_length > 4 + HCI_ACL_BUFFER_SIZE){ 6980ca847afS[email protected] log_error( "ACL Cont Fragment to large: combined packet %u > buffer size %u for handle 0x%02x", 6990ca847afS[email protected] conn->acl_recombination_pos + acl_length, 4 + HCI_ACL_BUFFER_SIZE, con_handle); 7000ca847afS[email protected] conn->acl_recombination_pos = 0; 7010ca847afS[email protected] return; 7020ca847afS[email protected] } 7037856c818Smatthias.ringwald 7047856c818Smatthias.ringwald // append fragment payload (header already stored) 705ec6321eeS[email protected] memcpy(&conn->acl_recombination_buffer[HCI_INCOMING_PRE_BUFFER_SIZE + conn->acl_recombination_pos], &packet[4], acl_length ); 7067856c818Smatthias.ringwald conn->acl_recombination_pos += acl_length; 7077856c818Smatthias.ringwald 7089da54300S[email protected] // log_error( "ACL Cont Fragment: acl_len %u, combined_len %u, l2cap_len %u", acl_length, 709decc01a8Smatthias.ringwald // conn->acl_recombination_pos, conn->acl_recombination_length); 7107856c818Smatthias.ringwald 7117856c818Smatthias.ringwald // forward complete L2CAP packet if complete. 7127856c818Smatthias.ringwald if (conn->acl_recombination_pos >= conn->acl_recombination_length + 4 + 4){ // pos already incl. ACL header 713d6b06661SMatthias Ringwald hci_emit_acl_packet(&conn->acl_recombination_buffer[HCI_INCOMING_PRE_BUFFER_SIZE], conn->acl_recombination_pos); 7147856c818Smatthias.ringwald // reset recombination buffer 7157856c818Smatthias.ringwald conn->acl_recombination_length = 0; 7167856c818Smatthias.ringwald conn->acl_recombination_pos = 0; 7177856c818Smatthias.ringwald } 7187856c818Smatthias.ringwald break; 7197856c818Smatthias.ringwald 7207856c818Smatthias.ringwald case 0x02: { // first fragment 7217856c818Smatthias.ringwald 72223a77e1aS[email protected] // sanity check 72323a77e1aS[email protected] if (conn->acl_recombination_pos) { 72423a77e1aS[email protected] log_error( "ACL First Fragment but data in buffer for handle 0x%02x, dropping stale fragments", con_handle); 72523a77e1aS[email protected] conn->acl_recombination_pos = 0; 72623a77e1aS[email protected] } 72723a77e1aS[email protected] 7287856c818Smatthias.ringwald // peek into L2CAP packet! 7297856c818Smatthias.ringwald uint16_t l2cap_length = READ_L2CAP_LENGTH( packet ); 7307856c818Smatthias.ringwald 7319da54300S[email protected] // log_info( "ACL First Fragment: acl_len %u, l2cap_len %u", acl_length, l2cap_length); 732decc01a8Smatthias.ringwald 7337856c818Smatthias.ringwald // compare fragment size to L2CAP packet size 7347856c818Smatthias.ringwald if (acl_length >= l2cap_length + 4){ 7357856c818Smatthias.ringwald // forward fragment as L2CAP packet 736d6b06661SMatthias Ringwald hci_emit_acl_packet(packet, acl_length + 4); 7377856c818Smatthias.ringwald } else { 7380ca847afS[email protected] 7390ca847afS[email protected] if (acl_length > HCI_ACL_BUFFER_SIZE){ 7400ca847afS[email protected] log_error( "ACL First Fragment to large: fragment %u > buffer size %u for handle 0x%02x", 7410ca847afS[email protected] 4 + acl_length, 4 + HCI_ACL_BUFFER_SIZE, con_handle); 7420ca847afS[email protected] return; 7430ca847afS[email protected] } 7440ca847afS[email protected] 7457856c818Smatthias.ringwald // store first fragment and tweak acl length for complete package 746ec6321eeS[email protected] memcpy(&conn->acl_recombination_buffer[HCI_INCOMING_PRE_BUFFER_SIZE], packet, acl_length + 4); 7477856c818Smatthias.ringwald conn->acl_recombination_pos = acl_length + 4; 7487856c818Smatthias.ringwald conn->acl_recombination_length = l2cap_length; 749f8fbdce0SMatthias Ringwald little_endian_store_16(conn->acl_recombination_buffer, HCI_INCOMING_PRE_BUFFER_SIZE + 2, l2cap_length +4); 7507856c818Smatthias.ringwald } 7517856c818Smatthias.ringwald break; 7527856c818Smatthias.ringwald 7537856c818Smatthias.ringwald } 7547856c818Smatthias.ringwald default: 7559da54300S[email protected] log_error( "hci.c: acl_handler called with invalid packet boundary flags %u", acl_flags & 0x03); 7567856c818Smatthias.ringwald return; 7577856c818Smatthias.ringwald } 75894ab26f8Smatthias.ringwald 75994ab26f8Smatthias.ringwald // execute main loop 76094ab26f8Smatthias.ringwald hci_run(); 76116833f0aSmatthias.ringwald } 76222909952Smatthias.ringwald 76367a3e8ecSmatthias.ringwald static void hci_shutdown_connection(hci_connection_t *conn){ 7649da54300S[email protected] log_info("Connection closed: handle 0x%x, %s", conn->con_handle, bd_addr_to_str(conn->address)); 7653c4d4b90Smatthias.ringwald 766ee752bb8SMatthias Ringwald #ifdef ENABLE_SCO_OVER_HCI 767ee752bb8SMatthias Ringwald int addr_type = conn->address_type; 768ee752bb8SMatthias Ringwald #endif 769ee752bb8SMatthias Ringwald 770528a4a3bSMatthias Ringwald btstack_run_loop_remove_timer(&conn->timeout); 771c785ef68Smatthias.ringwald 772665d90f2SMatthias Ringwald btstack_linked_list_remove(&hci_stack->connections, (btstack_linked_item_t *) conn); 773a3b02b71Smatthias.ringwald btstack_memory_hci_connection_free( conn ); 7743c4d4b90Smatthias.ringwald 7753c4d4b90Smatthias.ringwald // now it's gone 776c7e0c5f6Smatthias.ringwald hci_emit_nr_connections_changed(); 777ee752bb8SMatthias Ringwald 778034e9b53SMatthias Ringwald #ifdef ENABLE_SCO_OVER_HCI 779ee752bb8SMatthias Ringwald // update SCO 780ee752bb8SMatthias Ringwald if (addr_type == BD_ADDR_TYPE_SCO && hci_stack->hci_transport && hci_stack->hci_transport->set_sco_config){ 781ee752bb8SMatthias Ringwald hci_stack->hci_transport->set_sco_config(hci_stack->sco_voice_setting_active, hci_number_sco_connections()); 782ee752bb8SMatthias Ringwald } 783034e9b53SMatthias Ringwald #endif 784c7e0c5f6Smatthias.ringwald } 785c7e0c5f6Smatthias.ringwald 78635454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 78735454696SMatthias Ringwald 7880c042179S[email protected] static const uint16_t packet_type_sizes[] = { 7898f8108aaSmatthias.ringwald 0, HCI_ACL_2DH1_SIZE, HCI_ACL_3DH1_SIZE, HCI_ACL_DM1_SIZE, 7908f8108aaSmatthias.ringwald HCI_ACL_DH1_SIZE, 0, 0, 0, 7918f8108aaSmatthias.ringwald HCI_ACL_2DH3_SIZE, HCI_ACL_3DH3_SIZE, HCI_ACL_DM3_SIZE, HCI_ACL_DH3_SIZE, 7928f8108aaSmatthias.ringwald HCI_ACL_2DH5_SIZE, HCI_ACL_3DH5_SIZE, HCI_ACL_DM5_SIZE, HCI_ACL_DH5_SIZE 7938f8108aaSmatthias.ringwald }; 79465389bfcS[email protected] static const uint8_t packet_type_feature_requirement_bit[] = { 79565389bfcS[email protected] 0, // 3 slot packets 79665389bfcS[email protected] 1, // 5 slot packets 79765389bfcS[email protected] 25, // EDR 2 mpbs 79865389bfcS[email protected] 26, // EDR 3 mbps 79965389bfcS[email protected] 39, // 3 slot EDR packts 80065389bfcS[email protected] 40, // 5 slot EDR packet 80165389bfcS[email protected] }; 80265389bfcS[email protected] static const uint16_t packet_type_feature_packet_mask[] = { 80365389bfcS[email protected] 0x0f00, // 3 slot packets 80465389bfcS[email protected] 0xf000, // 5 slot packets 80565389bfcS[email protected] 0x1102, // EDR 2 mpbs 80665389bfcS[email protected] 0x2204, // EDR 3 mbps 80765389bfcS[email protected] 0x0300, // 3 slot EDR packts 80865389bfcS[email protected] 0x3000, // 5 slot EDR packet 80965389bfcS[email protected] }; 8108f8108aaSmatthias.ringwald 81165389bfcS[email protected] static uint16_t hci_acl_packet_types_for_buffer_size_and_local_features(uint16_t buffer_size, uint8_t * local_supported_features){ 81265389bfcS[email protected] // enable packet types based on size 8138f8108aaSmatthias.ringwald uint16_t packet_types = 0; 814f16a69bbS[email protected] unsigned int i; 8158f8108aaSmatthias.ringwald for (i=0;i<16;i++){ 8168f8108aaSmatthias.ringwald if (packet_type_sizes[i] == 0) continue; 8178f8108aaSmatthias.ringwald if (packet_type_sizes[i] <= buffer_size){ 8188f8108aaSmatthias.ringwald packet_types |= 1 << i; 8198f8108aaSmatthias.ringwald } 8208f8108aaSmatthias.ringwald } 82165389bfcS[email protected] // disable packet types due to missing local supported features 82265389bfcS[email protected] for (i=0;i<sizeof(packet_type_feature_requirement_bit);i++){ 823f04a0c31SMatthias Ringwald unsigned int bit_idx = packet_type_feature_requirement_bit[i]; 82465389bfcS[email protected] int feature_set = (local_supported_features[bit_idx >> 3] & (1<<(bit_idx & 7))) != 0; 82565389bfcS[email protected] if (feature_set) continue; 82665389bfcS[email protected] log_info("Features bit %02u is not set, removing packet types 0x%04x", bit_idx, packet_type_feature_packet_mask[i]); 82765389bfcS[email protected] packet_types &= ~packet_type_feature_packet_mask[i]; 82865389bfcS[email protected] } 8298f8108aaSmatthias.ringwald // flip bits for "may not be used" 8308f8108aaSmatthias.ringwald packet_types ^= 0x3306; 8318f8108aaSmatthias.ringwald return packet_types; 8328f8108aaSmatthias.ringwald } 8338f8108aaSmatthias.ringwald 8348f8108aaSmatthias.ringwald uint16_t hci_usable_acl_packet_types(void){ 8353a9fb326S[email protected] return hci_stack->packet_types; 8368f8108aaSmatthias.ringwald } 83735454696SMatthias Ringwald #endif 8388f8108aaSmatthias.ringwald 839facf93fdS[email protected] uint8_t* hci_get_outgoing_packet_buffer(void){ 8407dc17943Smatthias.ringwald // hci packet buffer is >= acl data packet length 8413a9fb326S[email protected] return hci_stack->hci_packet_buffer; 8427dc17943Smatthias.ringwald } 8437dc17943Smatthias.ringwald 844f5d8d141S[email protected] uint16_t hci_max_acl_data_packet_length(void){ 8453a9fb326S[email protected] return hci_stack->acl_data_packet_length; 8467dc17943Smatthias.ringwald } 8477dc17943Smatthias.ringwald 84806b9e820SMatthias Ringwald #ifdef ENABLE_CLASSIC 8493e68d23dSMatthias Ringwald int hci_extended_sco_link_supported(void){ 8503e68d23dSMatthias Ringwald // No. 31, byte 3, bit 7 8513e68d23dSMatthias Ringwald return (hci_stack->local_supported_features[3] & (1 << 7)) != 0; 8523e68d23dSMatthias Ringwald } 85306b9e820SMatthias Ringwald #endif 8543e68d23dSMatthias Ringwald 8556ac9a97eS[email protected] int hci_non_flushable_packet_boundary_flag_supported(void){ 8566ac9a97eS[email protected] // No. 54, byte 6, bit 6 8576ac9a97eS[email protected] return (hci_stack->local_supported_features[6] & (1 << 6)) != 0; 8586ac9a97eS[email protected] } 8596ac9a97eS[email protected] 86015a95bd5SMatthias Ringwald static int gap_ssp_supported(void){ 8616ac9a97eS[email protected] // No. 51, byte 6, bit 3 8623a9fb326S[email protected] return (hci_stack->local_supported_features[6] & (1 << 3)) != 0; 863f5d8d141S[email protected] } 864f5d8d141S[email protected] 8657f02f414SMatthias Ringwald static int hci_classic_supported(void){ 86635454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 8676ac9a97eS[email protected] // No. 37, byte 4, bit 5, = No BR/EDR Support 8683a9fb326S[email protected] return (hci_stack->local_supported_features[4] & (1 << 5)) == 0; 86935454696SMatthias Ringwald #else 87035454696SMatthias Ringwald return 0; 87135454696SMatthias Ringwald #endif 872f5d8d141S[email protected] } 873f5d8d141S[email protected] 8747f02f414SMatthias Ringwald static int hci_le_supported(void){ 875a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 8766ac9a97eS[email protected] // No. 37, byte 4, bit 6 = LE Supported (Controller) 8773a9fb326S[email protected] return (hci_stack->local_supported_features[4] & (1 << 6)) != 0; 878f5d8d141S[email protected] #else 879f5d8d141S[email protected] return 0; 880f5d8d141S[email protected] #endif 881f5d8d141S[email protected] } 882f5d8d141S[email protected] 883b95a5a35SMatthias Ringwald #ifdef ENABLE_BLE 884b95a5a35SMatthias Ringwald 885b95a5a35SMatthias Ringwald /** 886b95a5a35SMatthias Ringwald * @brief Get addr type and address used for LE in Advertisements, Scan Responses, 887b95a5a35SMatthias Ringwald */ 888b95a5a35SMatthias Ringwald void gap_le_get_own_address(uint8_t * addr_type, bd_addr_t addr){ 889b95a5a35SMatthias Ringwald *addr_type = hci_stack->le_own_addr_type; 890b95a5a35SMatthias Ringwald if (hci_stack->le_own_addr_type){ 891b95a5a35SMatthias Ringwald memcpy(addr, hci_stack->le_random_address, 6); 89269a97523S[email protected] } else { 8933a9fb326S[email protected] memcpy(addr, hci_stack->local_bd_addr, 6); 89469a97523S[email protected] } 89569a97523S[email protected] } 89669a97523S[email protected] 897e8c8828eSMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 89839677e66SMatthias Ringwald void le_handle_advertisement_report(uint8_t *packet, int size){ 8999ec2630cSMatthias Ringwald 9009ec2630cSMatthias Ringwald UNUSED(size); 9019ec2630cSMatthias Ringwald 902d1dc057bS[email protected] int offset = 3; 903d1dc057bS[email protected] int num_reports = packet[offset]; 904d1dc057bS[email protected] offset += 1; 905d1dc057bS[email protected] 90657c9da5bS[email protected] int i; 9074f4e0224SMatthias Ringwald // log_info("HCI: handle adv report with num reports: %d", num_reports); 90803fbe9c6S[email protected] uint8_t event[12 + LE_ADVERTISING_DATA_SIZE]; // use upper bound to avoid var size automatic var 90957c9da5bS[email protected] for (i=0; i<num_reports;i++){ 910210c6774S[email protected] uint8_t data_length = packet[offset + 8]; 911a0aac9c4S[email protected] uint8_t event_size = 10 + data_length; 912d1dc057bS[email protected] int pos = 0; 913045013feSMatthias Ringwald event[pos++] = GAP_EVENT_ADVERTISING_REPORT; 91457c9da5bS[email protected] event[pos++] = event_size; 915210c6774S[email protected] memcpy(&event[pos], &packet[offset], 1+1+6); // event type + address type + address 916d1dc057bS[email protected] offset += 8; 917d1dc057bS[email protected] pos += 8; 918d1dc057bS[email protected] event[pos++] = packet[offset + 1 + data_length]; // rssi 919d1dc057bS[email protected] event[pos++] = packet[offset++]; //data_length; 920d1dc057bS[email protected] memcpy(&event[pos], &packet[offset], data_length); 92157c9da5bS[email protected] pos += data_length; 922d1dc057bS[email protected] offset += data_length + 1; // rssi 923d6b06661SMatthias Ringwald hci_emit_event(event, pos, 1); 92457c9da5bS[email protected] } 92557c9da5bS[email protected] } 926b2f949feS[email protected] #endif 927e8c8828eSMatthias Ringwald #endif 92857c9da5bS[email protected] 929cd77dd38SMatthias Ringwald #if !defined(HAVE_PLATFORM_IPHONE_OS) && !defined (HAVE_HOST_CONTROLLER_API) 93006b9e820SMatthias Ringwald 93196b53536SMatthias Ringwald static uint32_t hci_transport_uart_get_main_baud_rate(void){ 93296b53536SMatthias Ringwald if (!hci_stack->config) return 0; 9339796ebeaSMatthias Ringwald uint32_t baud_rate = ((hci_transport_config_uart_t *)hci_stack->config)->baudrate_main; 93496b53536SMatthias Ringwald // Limit baud rate for Broadcom chipsets to 3 mbps 935c6d1dbedSMatthias Ringwald if (hci_stack->manufacturer == COMPANY_ID_BROADCOM_CORPORATION && baud_rate > 3000000){ 93696b53536SMatthias Ringwald baud_rate = 3000000; 93796b53536SMatthias Ringwald } 93896b53536SMatthias Ringwald return baud_rate; 93996b53536SMatthias Ringwald } 94096b53536SMatthias Ringwald 941ec820d77SMatthias Ringwald static void hci_initialization_timeout_handler(btstack_timer_source_t * ds){ 9429ec2630cSMatthias Ringwald UNUSED(ds); 9439ec2630cSMatthias Ringwald 9440305bdeaSMatthias Ringwald switch (hci_stack->substate){ 9450305bdeaSMatthias Ringwald case HCI_INIT_W4_SEND_RESET: 9467b0d7667SMatthias Ringwald log_info("Resend HCI Reset"); 9470305bdeaSMatthias Ringwald hci_stack->substate = HCI_INIT_SEND_RESET; 9487b0d7667SMatthias Ringwald hci_stack->num_cmd_packets = 1; 9490305bdeaSMatthias Ringwald hci_run(); 9500305bdeaSMatthias Ringwald break; 9519f007422SMatthias Ringwald case HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT_LINK_RESET: 9529f007422SMatthias Ringwald log_info("Resend HCI Reset - CSR Warm Boot with Link Reset"); 9539f007422SMatthias Ringwald if (hci_stack->hci_transport->reset_link){ 9549f007422SMatthias Ringwald hci_stack->hci_transport->reset_link(); 9559f007422SMatthias Ringwald } 956202c8a4cSMatthias Ringwald // no break - explicit fallthrough to HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT 957e47e68c7SMatthias Ringwald case HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT: 958e47e68c7SMatthias Ringwald log_info("Resend HCI Reset - CSR Warm Boot"); 959e47e68c7SMatthias Ringwald hci_stack->substate = HCI_INIT_SEND_RESET_CSR_WARM_BOOT; 960e47e68c7SMatthias Ringwald hci_stack->num_cmd_packets = 1; 961e47e68c7SMatthias Ringwald hci_run(); 962688c2635SMatthias Ringwald break; 9637224be7eSMatthias Ringwald case HCI_INIT_W4_SEND_BAUD_CHANGE: 9647224be7eSMatthias Ringwald if (hci_stack->hci_transport->set_baudrate){ 96596b53536SMatthias Ringwald uint32_t baud_rate = hci_transport_uart_get_main_baud_rate(); 966cd724cb7SMatthias Ringwald log_info("Local baud rate change to %"PRIu32"(timeout handler)", baud_rate); 9677dd9d0ecSMatthias Ringwald hci_stack->hci_transport->set_baudrate(baud_rate); 9687224be7eSMatthias Ringwald } 969772a36d3SMatthias Ringwald // For CSR, HCI Reset is sent on new baud rate 9702caefae9SMatthias Ringwald if (hci_stack->manufacturer == COMPANY_ID_CAMBRIDGE_SILICON_RADIO){ 971772a36d3SMatthias Ringwald hci_stack->substate = HCI_INIT_SEND_RESET_CSR_WARM_BOOT; 972772a36d3SMatthias Ringwald hci_run(); 973772a36d3SMatthias Ringwald } 9744696bddbSMatthias Ringwald break; 975559961d0SMatthias Ringwald case HCI_INIT_W4_CUSTOM_INIT_BCM_DELAY: 976559961d0SMatthias Ringwald // otherwise continue 977559961d0SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_READ_LOCAL_SUPPORTED_COMMANDS; 978559961d0SMatthias Ringwald hci_send_cmd(&hci_read_local_supported_commands); 979559961d0SMatthias Ringwald break; 9800305bdeaSMatthias Ringwald default: 9810305bdeaSMatthias Ringwald break; 9820305bdeaSMatthias Ringwald } 9830305bdeaSMatthias Ringwald } 98406b9e820SMatthias Ringwald #endif 9850305bdeaSMatthias Ringwald 98671de195eSMatthias Ringwald static void hci_initializing_next_state(void){ 98774b323a9SMatthias Ringwald hci_stack->substate = (hci_substate_t )( ((int) hci_stack->substate) + 1); 98874b323a9SMatthias Ringwald } 98974b323a9SMatthias Ringwald 99074b323a9SMatthias Ringwald // assumption: hci_can_send_command_packet_now() == true 99171de195eSMatthias Ringwald static void hci_initializing_run(void){ 992148ca237SMatthias Ringwald log_debug("hci_initializing_run: substate %u, can send %u", hci_stack->substate, hci_can_send_command_packet_now()); 99374b323a9SMatthias Ringwald switch (hci_stack->substate){ 99474b323a9SMatthias Ringwald case HCI_INIT_SEND_RESET: 99574b323a9SMatthias Ringwald hci_state_reset(); 996a0cf2f3fSMatthias Ringwald 99706b9e820SMatthias Ringwald #if !defined(HAVE_PLATFORM_IPHONE_OS) && !defined (HAVE_HOST_CONTROLLER_API) 9980305bdeaSMatthias Ringwald // prepare reset if command complete not received in 100ms 999659d758cSMatthias Ringwald btstack_run_loop_set_timer(&hci_stack->timeout, HCI_RESET_RESEND_TIMEOUT_MS); 1000528a4a3bSMatthias Ringwald btstack_run_loop_set_timer_handler(&hci_stack->timeout, hci_initialization_timeout_handler); 1001528a4a3bSMatthias Ringwald btstack_run_loop_add_timer(&hci_stack->timeout); 1002a0cf2f3fSMatthias Ringwald #endif 10030305bdeaSMatthias Ringwald // send command 100474b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_RESET; 10050305bdeaSMatthias Ringwald hci_send_cmd(&hci_reset); 100674b323a9SMatthias Ringwald break; 100776fcb19bSMatthias Ringwald case HCI_INIT_SEND_READ_LOCAL_VERSION_INFORMATION: 100876fcb19bSMatthias Ringwald hci_send_cmd(&hci_read_local_version_information); 100976fcb19bSMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_READ_LOCAL_VERSION_INFORMATION; 101076fcb19bSMatthias Ringwald break; 1011e90bae01SMatthias Ringwald case HCI_INIT_SEND_READ_LOCAL_NAME: 1012e90bae01SMatthias Ringwald hci_send_cmd(&hci_read_local_name); 1013e90bae01SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_READ_LOCAL_NAME; 1014e90bae01SMatthias Ringwald break; 101506b9e820SMatthias Ringwald 101606b9e820SMatthias Ringwald #if !defined(HAVE_PLATFORM_IPHONE_OS) && !defined (HAVE_HOST_CONTROLLER_API) 1017e47e68c7SMatthias Ringwald case HCI_INIT_SEND_RESET_CSR_WARM_BOOT: 1018e47e68c7SMatthias Ringwald hci_state_reset(); 1019e47e68c7SMatthias Ringwald // prepare reset if command complete not received in 100ms 1020659d758cSMatthias Ringwald btstack_run_loop_set_timer(&hci_stack->timeout, HCI_RESET_RESEND_TIMEOUT_MS); 1021528a4a3bSMatthias Ringwald btstack_run_loop_set_timer_handler(&hci_stack->timeout, hci_initialization_timeout_handler); 1022528a4a3bSMatthias Ringwald btstack_run_loop_add_timer(&hci_stack->timeout); 1023e47e68c7SMatthias Ringwald // send command 1024e47e68c7SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT; 1025e47e68c7SMatthias Ringwald hci_send_cmd(&hci_reset); 1026e47e68c7SMatthias Ringwald break; 10278d29070eSMatthias Ringwald case HCI_INIT_SEND_RESET_ST_WARM_BOOT: 10288d29070eSMatthias Ringwald hci_state_reset(); 10298d29070eSMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_RESET_ST_WARM_BOOT; 10308d29070eSMatthias Ringwald hci_send_cmd(&hci_reset); 10318d29070eSMatthias Ringwald break; 1032fab26ab3SMatthias Ringwald case HCI_INIT_SEND_BAUD_CHANGE: { 103396b53536SMatthias Ringwald uint32_t baud_rate = hci_transport_uart_get_main_baud_rate(); 10343fb36a29SMatthias Ringwald hci_stack->chipset->set_baudrate_command(baud_rate, hci_stack->hci_packet_buffer); 1035f8fbdce0SMatthias Ringwald hci_stack->last_cmd_opcode = little_endian_read_16(hci_stack->hci_packet_buffer, 0); 103674b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_BAUD_CHANGE; 10370305bdeaSMatthias Ringwald hci_send_cmd_packet(hci_stack->hci_packet_buffer, 3 + hci_stack->hci_packet_buffer[2]); 10384696bddbSMatthias Ringwald // STLC25000D: baudrate change happens within 0.5 s after command was send, 10394696bddbSMatthias Ringwald // use timer to update baud rate after 100 ms (knowing exactly, when command was sent is non-trivial) 1040c6d1dbedSMatthias Ringwald if (hci_stack->manufacturer == COMPANY_ID_ST_MICROELECTRONICS){ 1041659d758cSMatthias Ringwald btstack_run_loop_set_timer(&hci_stack->timeout, HCI_RESET_RESEND_TIMEOUT_MS); 1042528a4a3bSMatthias Ringwald btstack_run_loop_add_timer(&hci_stack->timeout); 10434696bddbSMatthias Ringwald } 104474b323a9SMatthias Ringwald break; 1045fab26ab3SMatthias Ringwald } 1046fab26ab3SMatthias Ringwald case HCI_INIT_SEND_BAUD_CHANGE_BCM: { 104796b53536SMatthias Ringwald uint32_t baud_rate = hci_transport_uart_get_main_baud_rate(); 10483fb36a29SMatthias Ringwald hci_stack->chipset->set_baudrate_command(baud_rate, hci_stack->hci_packet_buffer); 1049f8fbdce0SMatthias Ringwald hci_stack->last_cmd_opcode = little_endian_read_16(hci_stack->hci_packet_buffer, 0); 1050eb3a5314SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_BAUD_CHANGE_BCM; 1051eb3a5314SMatthias Ringwald hci_send_cmd_packet(hci_stack->hci_packet_buffer, 3 + hci_stack->hci_packet_buffer[2]); 1052eb3a5314SMatthias Ringwald break; 1053fab26ab3SMatthias Ringwald } 105474b323a9SMatthias Ringwald case HCI_INIT_CUSTOM_INIT: 105574b323a9SMatthias Ringwald // Custom initialization 10563fb36a29SMatthias Ringwald if (hci_stack->chipset && hci_stack->chipset->next_command){ 10573fb36a29SMatthias Ringwald int valid_cmd = (*hci_stack->chipset->next_command)(hci_stack->hci_packet_buffer); 105874b323a9SMatthias Ringwald if (valid_cmd){ 105974b323a9SMatthias Ringwald int size = 3 + hci_stack->hci_packet_buffer[2]; 1060f8fbdce0SMatthias Ringwald hci_stack->last_cmd_opcode = little_endian_read_16(hci_stack->hci_packet_buffer, 0); 106174b323a9SMatthias Ringwald hci_dump_packet(HCI_COMMAND_DATA_PACKET, 0, hci_stack->hci_packet_buffer, size); 1062e47e68c7SMatthias Ringwald switch (valid_cmd) { 1063e47e68c7SMatthias Ringwald case 1: 1064e47e68c7SMatthias Ringwald default: 1065e47e68c7SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_CUSTOM_INIT; 1066e47e68c7SMatthias Ringwald break; 1067e47e68c7SMatthias Ringwald case 2: // CSR Warm Boot: Wait a bit, then send HCI Reset until HCI Command Complete 1068e47e68c7SMatthias Ringwald log_info("CSR Warm Boot"); 1069659d758cSMatthias Ringwald btstack_run_loop_set_timer(&hci_stack->timeout, HCI_RESET_RESEND_TIMEOUT_MS); 1070528a4a3bSMatthias Ringwald btstack_run_loop_set_timer_handler(&hci_stack->timeout, hci_initialization_timeout_handler); 1071528a4a3bSMatthias Ringwald btstack_run_loop_add_timer(&hci_stack->timeout); 10722caefae9SMatthias Ringwald if (hci_stack->manufacturer == COMPANY_ID_CAMBRIDGE_SILICON_RADIO 1073772a36d3SMatthias Ringwald && hci_stack->config 10743fb36a29SMatthias Ringwald && hci_stack->chipset 10753fb36a29SMatthias Ringwald // && hci_stack->chipset->set_baudrate_command -- there's no such command 1076772a36d3SMatthias Ringwald && hci_stack->hci_transport->set_baudrate 10772caefae9SMatthias Ringwald && hci_transport_uart_get_main_baud_rate()){ 1078772a36d3SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_BAUD_CHANGE; 1079772a36d3SMatthias Ringwald } else { 10809f007422SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT_LINK_RESET; 1081772a36d3SMatthias Ringwald } 1082e47e68c7SMatthias Ringwald break; 1083e47e68c7SMatthias Ringwald } 10840305bdeaSMatthias Ringwald hci_stack->hci_transport->send_packet(HCI_COMMAND_DATA_PACKET, hci_stack->hci_packet_buffer, size); 108574b323a9SMatthias Ringwald break; 108674b323a9SMatthias Ringwald } 1087148ca237SMatthias Ringwald log_info("Init script done"); 108892a0d36dSMatthias Ringwald 1089559961d0SMatthias Ringwald // Init script download on Broadcom chipsets causes: 1090c6d1dbedSMatthias Ringwald if (hci_stack->manufacturer == COMPANY_ID_BROADCOM_CORPORATION){ 1091559961d0SMatthias Ringwald // - baud rate to reset, restore UART baud rate if needed 109292a0d36dSMatthias Ringwald int need_baud_change = hci_stack->config 10933fb36a29SMatthias Ringwald && hci_stack->chipset 10943fb36a29SMatthias Ringwald && hci_stack->chipset->set_baudrate_command 109592a0d36dSMatthias Ringwald && hci_stack->hci_transport->set_baudrate 10969796ebeaSMatthias Ringwald && ((hci_transport_config_uart_t *)hci_stack->config)->baudrate_main; 109792a0d36dSMatthias Ringwald if (need_baud_change) { 10989796ebeaSMatthias Ringwald uint32_t baud_rate = ((hci_transport_config_uart_t *)hci_stack->config)->baudrate_init; 1099cd724cb7SMatthias Ringwald log_info("Local baud rate change to %"PRIu32" after init script (bcm)", baud_rate); 110092a0d36dSMatthias Ringwald hci_stack->hci_transport->set_baudrate(baud_rate); 110192a0d36dSMatthias Ringwald } 1102559961d0SMatthias Ringwald 1103559961d0SMatthias Ringwald // - RTS will raise during update, but manual RTS/CTS in WICED port on RedBear Duo cannot handle this 1104559961d0SMatthias Ringwald // -> Work around: wait a few milliseconds here. 1105559961d0SMatthias Ringwald log_info("BCM delay after init script"); 1106559961d0SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_CUSTOM_INIT_BCM_DELAY; 1107559961d0SMatthias Ringwald btstack_run_loop_set_timer(&hci_stack->timeout, 10); 1108559961d0SMatthias Ringwald btstack_run_loop_set_timer_handler(&hci_stack->timeout, hci_initialization_timeout_handler); 1109559961d0SMatthias Ringwald btstack_run_loop_add_timer(&hci_stack->timeout); 1110559961d0SMatthias Ringwald break; 111192a0d36dSMatthias Ringwald } 111274b323a9SMatthias Ringwald } 111374b323a9SMatthias Ringwald // otherwise continue 1114a828a756SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_READ_LOCAL_SUPPORTED_COMMANDS; 1115a828a756SMatthias Ringwald hci_send_cmd(&hci_read_local_supported_commands); 1116a828a756SMatthias Ringwald break; 111753860077SMatthias Ringwald case HCI_INIT_SET_BD_ADDR: 111853860077SMatthias Ringwald log_info("Set Public BD ADDR to %s", bd_addr_to_str(hci_stack->custom_bd_addr)); 11193fb36a29SMatthias Ringwald hci_stack->chipset->set_bd_addr_command(hci_stack->custom_bd_addr, hci_stack->hci_packet_buffer); 1120f8fbdce0SMatthias Ringwald hci_stack->last_cmd_opcode = little_endian_read_16(hci_stack->hci_packet_buffer, 0); 112153860077SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SET_BD_ADDR; 112253860077SMatthias Ringwald hci_send_cmd_packet(hci_stack->hci_packet_buffer, 3 + hci_stack->hci_packet_buffer[2]); 112353860077SMatthias Ringwald break; 112406b9e820SMatthias Ringwald #endif 112506b9e820SMatthias Ringwald 112606b9e820SMatthias Ringwald case HCI_INIT_READ_LOCAL_SUPPORTED_COMMANDS: 112706b9e820SMatthias Ringwald log_info("Resend hci_read_local_supported_commands after CSR Warm Boot double reset"); 112806b9e820SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_READ_LOCAL_SUPPORTED_COMMANDS; 112906b9e820SMatthias Ringwald hci_send_cmd(&hci_read_local_supported_commands); 113006b9e820SMatthias Ringwald break; 113153860077SMatthias Ringwald case HCI_INIT_READ_BD_ADDR: 113253860077SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_READ_BD_ADDR; 113353860077SMatthias Ringwald hci_send_cmd(&hci_read_bd_addr); 113453860077SMatthias Ringwald break; 113574b323a9SMatthias Ringwald case HCI_INIT_READ_BUFFER_SIZE: 113674b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_READ_BUFFER_SIZE; 11370305bdeaSMatthias Ringwald hci_send_cmd(&hci_read_buffer_size); 113874b323a9SMatthias Ringwald break; 113953860077SMatthias Ringwald case HCI_INIT_READ_LOCAL_SUPPORTED_FEATURES: 114053860077SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_READ_LOCAL_SUPPORTED_FEATURES; 11410305bdeaSMatthias Ringwald hci_send_cmd(&hci_read_local_supported_features); 114274b323a9SMatthias Ringwald break; 114374b323a9SMatthias Ringwald case HCI_INIT_SET_EVENT_MASK: 11440305bdeaSMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SET_EVENT_MASK; 114574b323a9SMatthias Ringwald if (hci_le_supported()){ 114674b323a9SMatthias Ringwald hci_send_cmd(&hci_set_event_mask,0xffffffff, 0x3FFFFFFF); 114774b323a9SMatthias Ringwald } else { 114874b323a9SMatthias Ringwald // Kensington Bluetooth 2.1 USB Dongle (CSR Chipset) returns an error for 0xffff... 114974b323a9SMatthias Ringwald hci_send_cmd(&hci_set_event_mask,0xffffffff, 0x1FFFFFFF); 115074b323a9SMatthias Ringwald } 115174b323a9SMatthias Ringwald break; 115235454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 115374b323a9SMatthias Ringwald case HCI_INIT_WRITE_SIMPLE_PAIRING_MODE: 115474b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_SIMPLE_PAIRING_MODE; 11550305bdeaSMatthias Ringwald hci_send_cmd(&hci_write_simple_pairing_mode, hci_stack->ssp_enable); 115674b323a9SMatthias Ringwald break; 115774b323a9SMatthias Ringwald case HCI_INIT_WRITE_PAGE_TIMEOUT: 115874b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_PAGE_TIMEOUT; 11590305bdeaSMatthias Ringwald hci_send_cmd(&hci_write_page_timeout, 0x6000); // ca. 15 sec 116074b323a9SMatthias Ringwald break; 116174b323a9SMatthias Ringwald case HCI_INIT_WRITE_CLASS_OF_DEVICE: 116274b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_CLASS_OF_DEVICE; 11630305bdeaSMatthias Ringwald hci_send_cmd(&hci_write_class_of_device, hci_stack->class_of_device); 116474b323a9SMatthias Ringwald break; 116574b323a9SMatthias Ringwald case HCI_INIT_WRITE_LOCAL_NAME: 11660305bdeaSMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_LOCAL_NAME; 116774b323a9SMatthias Ringwald if (hci_stack->local_name){ 116874b323a9SMatthias Ringwald hci_send_cmd(&hci_write_local_name, hci_stack->local_name); 116974b323a9SMatthias Ringwald } else { 11707224be7eSMatthias Ringwald char local_name[8+17+1]; 11717224be7eSMatthias Ringwald // BTstack 11:22:33:44:55:66 11727224be7eSMatthias Ringwald memcpy(local_name, "BTstack ", 8); 11737224be7eSMatthias Ringwald memcpy(&local_name[8], bd_addr_to_str(hci_stack->local_bd_addr), 17); // strlen(bd_addr_to_str(...)) = 17 11747224be7eSMatthias Ringwald local_name[8+17] = '\0'; 117593bcd4d0SMatthias Ringwald log_info("---> Name %s", local_name); 117693bcd4d0SMatthias Ringwald hci_send_cmd(&hci_write_local_name, local_name); 117774b323a9SMatthias Ringwald } 117874b323a9SMatthias Ringwald break; 1179ff00ed1cSMatthias Ringwald case HCI_INIT_WRITE_EIR_DATA: 11808a114470SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_EIR_DATA; 1181ff00ed1cSMatthias Ringwald hci_send_cmd(&hci_write_extended_inquiry_response, 0, hci_stack->eir_data); 1182ff00ed1cSMatthias Ringwald break; 1183f6858d14SMatthias Ringwald case HCI_INIT_WRITE_INQUIRY_MODE: 1184f6858d14SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_INQUIRY_MODE; 11858a114470SMatthias Ringwald hci_send_cmd(&hci_write_inquiry_mode, (int) hci_stack->inquiry_mode); 1186f6858d14SMatthias Ringwald break; 118774b323a9SMatthias Ringwald case HCI_INIT_WRITE_SCAN_ENABLE: 118874b323a9SMatthias Ringwald hci_send_cmd(&hci_write_scan_enable, (hci_stack->connectable << 1) | hci_stack->discoverable); // page scan 118974b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_SCAN_ENABLE; 119074b323a9SMatthias Ringwald break; 1191483c5078SMatthias Ringwald // only sent if ENABLE_SCO_OVER_HCI is defined 1192729ed62eSMatthias Ringwald case HCI_INIT_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE: 1193729ed62eSMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE; 1194729ed62eSMatthias Ringwald hci_send_cmd(&hci_write_synchronous_flow_control_enable, 1); // SCO tracking enabled 1195729ed62eSMatthias Ringwald break; 1196483c5078SMatthias Ringwald case HCI_INIT_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING: 1197483c5078SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING; 1198483c5078SMatthias Ringwald hci_send_cmd(&hci_write_default_erroneous_data_reporting, 1); 1199483c5078SMatthias Ringwald break; 1200a42798c3SMatthias Ringwald // only sent if ENABLE_SCO_OVER_HCI and manufacturer is Broadcom 1201a42798c3SMatthias Ringwald case HCI_INIT_BCM_WRITE_SCO_PCM_INT: 1202a42798c3SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_BCM_WRITE_SCO_PCM_INT; 1203a42798c3SMatthias Ringwald log_info("BCM: Route SCO data via HCI transport"); 1204a42798c3SMatthias Ringwald hci_send_cmd(&hci_bcm_write_sco_pcm_int, 1, 0, 0, 0, 0); 1205a42798c3SMatthias Ringwald break; 1206a42798c3SMatthias Ringwald 120735454696SMatthias Ringwald #endif 1208a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 120974b323a9SMatthias Ringwald // LE INIT 121074b323a9SMatthias Ringwald case HCI_INIT_LE_READ_BUFFER_SIZE: 121174b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_LE_READ_BUFFER_SIZE; 12120305bdeaSMatthias Ringwald hci_send_cmd(&hci_le_read_buffer_size); 121374b323a9SMatthias Ringwald break; 121474b323a9SMatthias Ringwald case HCI_INIT_WRITE_LE_HOST_SUPPORTED: 121574b323a9SMatthias Ringwald // LE Supported Host = 1, Simultaneous Host = 0 121674b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_LE_HOST_SUPPORTED; 12170305bdeaSMatthias Ringwald hci_send_cmd(&hci_write_le_host_supported, 1, 0); 121874b323a9SMatthias Ringwald break; 1219b95a5a35SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 12203b6d4121SMatthias Ringwald case HCI_INIT_READ_WHITE_LIST_SIZE: 12213b6d4121SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_READ_WHITE_LIST_SIZE; 12223b6d4121SMatthias Ringwald hci_send_cmd(&hci_le_read_white_list_size); 12233b6d4121SMatthias Ringwald break; 122474b323a9SMatthias Ringwald case HCI_INIT_LE_SET_SCAN_PARAMETERS: 1225b95a5a35SMatthias Ringwald // LE Scan Parameters: active scanning, 300 ms interval, 30 ms window, own address type, accept all advs 122674b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_LE_SET_SCAN_PARAMETERS; 1227b95a5a35SMatthias Ringwald hci_send_cmd(&hci_le_set_scan_parameters, 1, 0x1e0, 0x30, hci_stack->le_own_addr_type, 0); 122874b323a9SMatthias Ringwald break; 122974b323a9SMatthias Ringwald #endif 1230b95a5a35SMatthias Ringwald #endif 123174b323a9SMatthias Ringwald default: 123274b323a9SMatthias Ringwald return; 123374b323a9SMatthias Ringwald } 123455975f88SMatthias Ringwald } 123555975f88SMatthias Ringwald 1236a650ba4dSMatthias Ringwald static void hci_init_done(void){ 1237a650ba4dSMatthias Ringwald // done. tell the app 1238a650ba4dSMatthias Ringwald log_info("hci_init_done -> HCI_STATE_WORKING"); 1239a650ba4dSMatthias Ringwald hci_stack->state = HCI_STATE_WORKING; 1240a650ba4dSMatthias Ringwald hci_emit_state(); 1241a650ba4dSMatthias Ringwald hci_run(); 1242a650ba4dSMatthias Ringwald } 1243a650ba4dSMatthias Ringwald 12446155b3d3S[email protected] static void hci_initializing_event_handler(uint8_t * packet, uint16_t size){ 12459ec2630cSMatthias Ringwald UNUSED(size); 12469ec2630cSMatthias Ringwald 1247a2481739S[email protected] uint8_t command_completed = 0; 1248c4633093SMatthias Ringwald 12490e2df43fSMatthias Ringwald if (hci_event_packet_get_type(packet) == HCI_EVENT_COMMAND_COMPLETE){ 1250f8fbdce0SMatthias Ringwald uint16_t opcode = little_endian_read_16(packet,3); 12516155b3d3S[email protected] if (opcode == hci_stack->last_cmd_opcode){ 1252a2481739S[email protected] command_completed = 1; 1253148ca237SMatthias Ringwald log_debug("Command complete for expected opcode %04x at substate %u", opcode, hci_stack->substate); 12546155b3d3S[email protected] } else { 1255d58dd308SMatthias Ringwald log_info("Command complete for different opcode %04x, expected %04x, at substate %u", opcode, hci_stack->last_cmd_opcode, hci_stack->substate); 12566155b3d3S[email protected] } 12576155b3d3S[email protected] } 12580f97eae7SMatthias Ringwald 12590e2df43fSMatthias Ringwald if (hci_event_packet_get_type(packet) == HCI_EVENT_COMMAND_STATUS){ 12606155b3d3S[email protected] uint8_t status = packet[2]; 1261f8fbdce0SMatthias Ringwald uint16_t opcode = little_endian_read_16(packet,4); 12626155b3d3S[email protected] if (opcode == hci_stack->last_cmd_opcode){ 12636155b3d3S[email protected] if (status){ 1264a2481739S[email protected] command_completed = 1; 1265148ca237SMatthias Ringwald log_debug("Command status error 0x%02x for expected opcode %04x at substate %u", status, opcode, hci_stack->substate); 12666155b3d3S[email protected] } else { 12676155b3d3S[email protected] log_info("Command status OK for expected opcode %04x, waiting for command complete", opcode); 12686155b3d3S[email protected] } 12696155b3d3S[email protected] } else { 1270148ca237SMatthias Ringwald log_debug("Command status for opcode %04x, expected %04x", opcode, hci_stack->last_cmd_opcode); 12716155b3d3S[email protected] } 12726155b3d3S[email protected] } 12730f97eae7SMatthias Ringwald 127406b9e820SMatthias Ringwald #if !defined(HAVE_PLATFORM_IPHONE_OS) && !defined (HAVE_HOST_CONTROLLER_API) 127506b9e820SMatthias Ringwald 1276e47e68c7SMatthias Ringwald // Vendor == CSR 12770e2df43fSMatthias Ringwald if (hci_stack->substate == HCI_INIT_W4_CUSTOM_INIT && hci_event_packet_get_type(packet) == HCI_EVENT_VENDOR_SPECIFIC){ 1278e47e68c7SMatthias Ringwald // TODO: track actual command 1279e47e68c7SMatthias Ringwald command_completed = 1; 1280e47e68c7SMatthias Ringwald } 1281a2481739S[email protected] 12824e9daa6fSMatthias Ringwald // Vendor == Toshiba 12830e2df43fSMatthias Ringwald if (hci_stack->substate == HCI_INIT_W4_SEND_BAUD_CHANGE && hci_event_packet_get_type(packet) == HCI_EVENT_VENDOR_SPECIFIC){ 12844e9daa6fSMatthias Ringwald // TODO: track actual command 12854e9daa6fSMatthias Ringwald command_completed = 1; 12864e9daa6fSMatthias Ringwald } 12874e9daa6fSMatthias Ringwald 12880f97eae7SMatthias Ringwald // Late response (> 100 ms) for HCI Reset e.g. on Toshiba TC35661: 12890f97eae7SMatthias Ringwald // Command complete for HCI Reset arrives after we've resent the HCI Reset command 12900f97eae7SMatthias Ringwald // 12910f97eae7SMatthias Ringwald // HCI Reset 12920f97eae7SMatthias Ringwald // Timeout 100 ms 12930f97eae7SMatthias Ringwald // HCI Reset 12940f97eae7SMatthias Ringwald // Command Complete Reset 12950f97eae7SMatthias Ringwald // HCI Read Local Version Information 12960f97eae7SMatthias Ringwald // Command Complete Reset - but we expected Command Complete Read Local Version Information 12970f97eae7SMatthias Ringwald // hang... 12980f97eae7SMatthias Ringwald // 12990f97eae7SMatthias Ringwald // Fix: Command Complete for HCI Reset in HCI_INIT_W4_SEND_READ_LOCAL_VERSION_INFORMATION trigger resend 13000f97eae7SMatthias Ringwald if (!command_completed 13010e2df43fSMatthias Ringwald && hci_event_packet_get_type(packet) == HCI_EVENT_COMMAND_COMPLETE 13020f97eae7SMatthias Ringwald && hci_stack->substate == HCI_INIT_W4_SEND_READ_LOCAL_VERSION_INFORMATION){ 13030f97eae7SMatthias Ringwald 1304f8fbdce0SMatthias Ringwald uint16_t opcode = little_endian_read_16(packet,3); 13050f97eae7SMatthias Ringwald if (opcode == hci_reset.opcode){ 13060f97eae7SMatthias Ringwald hci_stack->substate = HCI_INIT_SEND_READ_LOCAL_VERSION_INFORMATION; 13070f97eae7SMatthias Ringwald return; 13080f97eae7SMatthias Ringwald } 13090f97eae7SMatthias Ringwald } 13100f97eae7SMatthias Ringwald 13119f007422SMatthias Ringwald // CSR & H5 13129f007422SMatthias Ringwald // Fix: Command Complete for HCI Reset in HCI_INIT_W4_SEND_READ_LOCAL_VERSION_INFORMATION trigger resend 13139f007422SMatthias Ringwald if (!command_completed 13149f007422SMatthias Ringwald && hci_event_packet_get_type(packet) == HCI_EVENT_COMMAND_COMPLETE 13159f007422SMatthias Ringwald && hci_stack->substate == HCI_INIT_W4_READ_LOCAL_SUPPORTED_COMMANDS){ 13169f007422SMatthias Ringwald 13179f007422SMatthias Ringwald uint16_t opcode = little_endian_read_16(packet,3); 13189f007422SMatthias Ringwald if (opcode == hci_reset.opcode){ 13199f007422SMatthias Ringwald hci_stack->substate = HCI_INIT_READ_LOCAL_SUPPORTED_COMMANDS; 13209f007422SMatthias Ringwald return; 13219f007422SMatthias Ringwald } 13229f007422SMatthias Ringwald } 13239f007422SMatthias Ringwald 13249f007422SMatthias Ringwald // on CSR with BCSP/H5, the reset resend timeout leads to substate == HCI_INIT_SEND_RESET or HCI_INIT_SEND_RESET_CSR_WARM_BOOT 13259f007422SMatthias Ringwald // fix: Correct substate and behave as command below 13269f007422SMatthias Ringwald if (command_completed){ 13279f007422SMatthias Ringwald switch (hci_stack->substate){ 13289f007422SMatthias Ringwald case HCI_INIT_SEND_RESET: 13299f007422SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_RESET; 13309f007422SMatthias Ringwald break; 13319f007422SMatthias Ringwald case HCI_INIT_SEND_RESET_CSR_WARM_BOOT: 13329f007422SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT; 13339f007422SMatthias Ringwald break; 13349f007422SMatthias Ringwald default: 13359f007422SMatthias Ringwald break; 13369f007422SMatthias Ringwald } 13379f007422SMatthias Ringwald } 13380f97eae7SMatthias Ringwald 133906b9e820SMatthias Ringwald #endif 13400f97eae7SMatthias Ringwald 1341a2481739S[email protected] if (!command_completed) return; 1342a2481739S[email protected] 134306b9e820SMatthias Ringwald int need_baud_change = 0; 134406b9e820SMatthias Ringwald int need_addr_change = 0; 134506b9e820SMatthias Ringwald 134606b9e820SMatthias Ringwald #if !defined(HAVE_PLATFORM_IPHONE_OS) && !defined (HAVE_HOST_CONTROLLER_API) 134706b9e820SMatthias Ringwald need_baud_change = hci_stack->config 13483fb36a29SMatthias Ringwald && hci_stack->chipset 13493fb36a29SMatthias Ringwald && hci_stack->chipset->set_baudrate_command 1350db8bc6ffSMatthias Ringwald && hci_stack->hci_transport->set_baudrate 13519796ebeaSMatthias Ringwald && ((hci_transport_config_uart_t *)hci_stack->config)->baudrate_main; 1352db8bc6ffSMatthias Ringwald 135306b9e820SMatthias Ringwald need_addr_change = hci_stack->custom_bd_addr_set 13543fb36a29SMatthias Ringwald && hci_stack->chipset 13553fb36a29SMatthias Ringwald && hci_stack->chipset->set_bd_addr_command; 135606b9e820SMatthias Ringwald #endif 1357a80162e9SMatthias Ringwald 13585c363727SMatthias Ringwald switch(hci_stack->substate){ 135906b9e820SMatthias Ringwald 136006b9e820SMatthias Ringwald #if !defined(HAVE_PLATFORM_IPHONE_OS) && !defined (HAVE_HOST_CONTROLLER_API) 13619f007422SMatthias Ringwald case HCI_INIT_SEND_RESET: 1362d58dd308SMatthias Ringwald // on CSR with BCSP/H5, resend triggers resend of HCI Reset and leads to substate == HCI_INIT_SEND_RESET 13639f007422SMatthias Ringwald // fix: just correct substate and behave as command below 13649f007422SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_SEND_RESET; 13659f007422SMatthias Ringwald btstack_run_loop_remove_timer(&hci_stack->timeout); 13669f007422SMatthias Ringwald break; 136774b323a9SMatthias Ringwald case HCI_INIT_W4_SEND_RESET: 1368528a4a3bSMatthias Ringwald btstack_run_loop_remove_timer(&hci_stack->timeout); 136976fcb19bSMatthias Ringwald break; 1370e90bae01SMatthias Ringwald case HCI_INIT_W4_SEND_READ_LOCAL_NAME: 1371e90bae01SMatthias Ringwald log_info("Received local name, need baud change %d", need_baud_change); 13722f48d920SMatthias Ringwald if (need_baud_change){ 13732f48d920SMatthias Ringwald hci_stack->substate = HCI_INIT_SEND_BAUD_CHANGE; 13742f48d920SMatthias Ringwald return; 13752f48d920SMatthias Ringwald } 137653860077SMatthias Ringwald // skip baud change 137774b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_CUSTOM_INIT; 137874b323a9SMatthias Ringwald return; 1379a80162e9SMatthias Ringwald case HCI_INIT_W4_SEND_BAUD_CHANGE: 13804696bddbSMatthias Ringwald // for STLC2500D, baud rate change already happened. 1381fab26ab3SMatthias Ringwald // for others, baud rate gets changed now 13827224be7eSMatthias Ringwald if ((hci_stack->manufacturer != COMPANY_ID_ST_MICROELECTRONICS) && need_baud_change){ 138396b53536SMatthias Ringwald uint32_t baud_rate = hci_transport_uart_get_main_baud_rate(); 1384cd724cb7SMatthias Ringwald log_info("Local baud rate change to %"PRIu32"(w4_send_baud_change)", baud_rate); 1385fab26ab3SMatthias Ringwald hci_stack->hci_transport->set_baudrate(baud_rate); 13864696bddbSMatthias Ringwald } 138774b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_CUSTOM_INIT; 138874b323a9SMatthias Ringwald return; 1389a80162e9SMatthias Ringwald case HCI_INIT_W4_CUSTOM_INIT_CSR_WARM_BOOT: 1390528a4a3bSMatthias Ringwald btstack_run_loop_remove_timer(&hci_stack->timeout); 1391a80162e9SMatthias Ringwald hci_stack->substate = HCI_INIT_CUSTOM_INIT; 1392a80162e9SMatthias Ringwald return; 139374b323a9SMatthias Ringwald case HCI_INIT_W4_CUSTOM_INIT: 139474b323a9SMatthias Ringwald // repeat custom init 139574b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_CUSTOM_INIT; 139674b323a9SMatthias Ringwald return; 139706b9e820SMatthias Ringwald #else 139806b9e820SMatthias Ringwald case HCI_INIT_W4_SEND_RESET: 139906b9e820SMatthias Ringwald hci_stack->substate = HCI_INIT_READ_LOCAL_SUPPORTED_COMMANDS; 140006b9e820SMatthias Ringwald return ; 140106b9e820SMatthias Ringwald #endif 140206b9e820SMatthias Ringwald 1403a828a756SMatthias Ringwald case HCI_INIT_W4_READ_LOCAL_SUPPORTED_COMMANDS: 1404c6d1dbedSMatthias Ringwald if (need_baud_change && hci_stack->manufacturer == COMPANY_ID_BROADCOM_CORPORATION){ 1405eb3a5314SMatthias Ringwald hci_stack->substate = HCI_INIT_SEND_BAUD_CHANGE_BCM; 1406eb3a5314SMatthias Ringwald return; 1407eb3a5314SMatthias Ringwald } 140853860077SMatthias Ringwald if (need_addr_change){ 140953860077SMatthias Ringwald hci_stack->substate = HCI_INIT_SET_BD_ADDR; 141053860077SMatthias Ringwald return; 141153860077SMatthias Ringwald } 141253860077SMatthias Ringwald hci_stack->substate = HCI_INIT_READ_BD_ADDR; 141353860077SMatthias Ringwald return; 141406b9e820SMatthias Ringwald #if !defined(HAVE_PLATFORM_IPHONE_OS) && !defined (HAVE_HOST_CONTROLLER_API) 14157224be7eSMatthias Ringwald case HCI_INIT_W4_SEND_BAUD_CHANGE_BCM: 14167224be7eSMatthias Ringwald if (need_baud_change){ 141796b53536SMatthias Ringwald uint32_t baud_rate = hci_transport_uart_get_main_baud_rate(); 1418cd724cb7SMatthias Ringwald log_info("Local baud rate change to %"PRIu32"(w4_send_baud_change_bcm))", baud_rate); 1419fab26ab3SMatthias Ringwald hci_stack->hci_transport->set_baudrate(baud_rate); 14207224be7eSMatthias Ringwald } 1421eb3a5314SMatthias Ringwald if (need_addr_change){ 1422eb3a5314SMatthias Ringwald hci_stack->substate = HCI_INIT_SET_BD_ADDR; 1423eb3a5314SMatthias Ringwald return; 1424eb3a5314SMatthias Ringwald } 1425eb3a5314SMatthias Ringwald hci_stack->substate = HCI_INIT_READ_BD_ADDR; 1426eb3a5314SMatthias Ringwald return; 142753860077SMatthias Ringwald case HCI_INIT_W4_SET_BD_ADDR: 142853860077SMatthias Ringwald // for STLC2500D, bd addr change only gets active after sending reset command 1429c6d1dbedSMatthias Ringwald if (hci_stack->manufacturer == COMPANY_ID_ST_MICROELECTRONICS){ 143053860077SMatthias Ringwald hci_stack->substate = HCI_INIT_SEND_RESET_ST_WARM_BOOT; 143153860077SMatthias Ringwald return; 143253860077SMatthias Ringwald } 143353860077SMatthias Ringwald // skipping st warm boot 143453860077SMatthias Ringwald hci_stack->substate = HCI_INIT_READ_BD_ADDR; 143553860077SMatthias Ringwald return; 143653860077SMatthias Ringwald case HCI_INIT_W4_SEND_RESET_ST_WARM_BOOT: 143753860077SMatthias Ringwald hci_stack->substate = HCI_INIT_READ_BD_ADDR; 143853860077SMatthias Ringwald return; 143906b9e820SMatthias Ringwald #endif 144053860077SMatthias Ringwald case HCI_INIT_W4_READ_BD_ADDR: 144153860077SMatthias Ringwald // only read buffer size if supported 144253860077SMatthias Ringwald if (hci_stack->local_supported_commands[0] & 0x01) { 144353860077SMatthias Ringwald hci_stack->substate = HCI_INIT_READ_BUFFER_SIZE; 144453860077SMatthias Ringwald return; 144553860077SMatthias Ringwald } 144653860077SMatthias Ringwald // skipping read buffer size 144753860077SMatthias Ringwald hci_stack->substate = HCI_INIT_READ_LOCAL_SUPPORTED_FEATURES; 1448a828a756SMatthias Ringwald return; 144974b323a9SMatthias Ringwald case HCI_INIT_W4_SET_EVENT_MASK: 14506155b3d3S[email protected] // skip Classic init commands for LE only chipsets 14516155b3d3S[email protected] if (!hci_classic_supported()){ 14522c68f164SMatthias Ringwald #ifdef ENABLE_BLE 14536155b3d3S[email protected] if (hci_le_supported()){ 145474b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_LE_READ_BUFFER_SIZE; // skip all classic command 145574b323a9SMatthias Ringwald return; 14562c68f164SMatthias Ringwald } 14572c68f164SMatthias Ringwald #endif 14586155b3d3S[email protected] log_error("Neither BR/EDR nor LE supported"); 1459a650ba4dSMatthias Ringwald hci_init_done(); 146074b323a9SMatthias Ringwald return; 14616155b3d3S[email protected] } 146215a95bd5SMatthias Ringwald if (!gap_ssp_supported()){ 14635c363727SMatthias Ringwald hci_stack->substate = HCI_INIT_WRITE_PAGE_TIMEOUT; 146474b323a9SMatthias Ringwald return; 14656155b3d3S[email protected] } 14666155b3d3S[email protected] break; 1467903ea03aSMatthias Ringwald #ifdef ENABLE_BLE 1468a828a756SMatthias Ringwald case HCI_INIT_W4_LE_READ_BUFFER_SIZE: 1469a828a756SMatthias Ringwald // skip write le host if not supported (e.g. on LE only EM9301) 1470a828a756SMatthias Ringwald if (hci_stack->local_supported_commands[0] & 0x02) break; 1471903ea03aSMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 1472903ea03aSMatthias Ringwald hci_stack->substate = HCI_INIT_READ_WHITE_LIST_SIZE; 1473903ea03aSMatthias Ringwald #else 1474903ea03aSMatthias Ringwald hci_init_done(); 1475903ea03aSMatthias Ringwald #endif 1476a828a756SMatthias Ringwald return; 1477903ea03aSMatthias Ringwald #endif 1478ff00ed1cSMatthias Ringwald case HCI_INIT_W4_WRITE_LOCAL_NAME: 1479ff00ed1cSMatthias Ringwald // skip write eir data if no eir data set 1480ff00ed1cSMatthias Ringwald if (hci_stack->eir_data) break; 1481ff00ed1cSMatthias Ringwald hci_stack->substate = HCI_INIT_WRITE_INQUIRY_MODE; 1482ff00ed1cSMatthias Ringwald return; 1483729ed62eSMatthias Ringwald 148471c4de7aSMatthias Ringwald #ifdef ENABLE_SCO_OVER_HCI 1485729ed62eSMatthias Ringwald case HCI_INIT_W4_WRITE_SCAN_ENABLE: 14863905afbfSMatthias Ringwald // skip write synchronous flow control if not supported 14873905afbfSMatthias Ringwald if (hci_stack->local_supported_commands[0] & 0x04) break; 14883905afbfSMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE; 14893905afbfSMatthias Ringwald // explicit fall through to reduce repetitions 14903905afbfSMatthias Ringwald 1491729ed62eSMatthias Ringwald case HCI_INIT_W4_WRITE_SYNCHRONOUS_FLOW_CONTROL_ENABLE: 14923905afbfSMatthias Ringwald // skip write default erroneous data reporting if not supported 14933905afbfSMatthias Ringwald if (hci_stack->local_supported_commands[0] & 0x08) break; 14943905afbfSMatthias Ringwald hci_stack->substate = HCI_INIT_W4_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING; 14953905afbfSMatthias Ringwald // explicit fall through to reduce repetitions 14963905afbfSMatthias Ringwald 1497f064e0bbSMatthias Ringwald case HCI_INIT_W4_WRITE_DEFAULT_ERRONEOUS_DATA_REPORTING: 1498a42798c3SMatthias Ringwald // skip bcm set sco pcm config on non-Broadcom chipsets 1499a42798c3SMatthias Ringwald if (hci_stack->manufacturer == COMPANY_ID_BROADCOM_CORPORATION) break; 1500a42798c3SMatthias Ringwald hci_stack->substate = HCI_INIT_W4_BCM_WRITE_SCO_PCM_INT; 1501a42798c3SMatthias Ringwald // explicit fall through to reduce repetitions 1502a42798c3SMatthias Ringwald 1503a42798c3SMatthias Ringwald case HCI_INIT_W4_BCM_WRITE_SCO_PCM_INT: 1504729ed62eSMatthias Ringwald if (!hci_le_supported()){ 1505729ed62eSMatthias Ringwald // SKIP LE init for Classic only configuration 1506a650ba4dSMatthias Ringwald hci_init_done(); 1507729ed62eSMatthias Ringwald return; 1508729ed62eSMatthias Ringwald } 1509729ed62eSMatthias Ringwald break; 1510*f3b012f9SMatthias Ringwald 1511*f3b012f9SMatthias Ringwald #else /* !ENABLE_SCO_OVER_HCI */ 1512*f3b012f9SMatthias Ringwald 151374b323a9SMatthias Ringwald case HCI_INIT_W4_WRITE_SCAN_ENABLE: 1514*f3b012f9SMatthias Ringwald #ifdef ENABLE_BLE 1515*f3b012f9SMatthias Ringwald if (hci_le_supported()){ 1516*f3b012f9SMatthias Ringwald hci_stack->substate = HCI_INIT_LE_READ_BUFFER_SIZE; 151774b323a9SMatthias Ringwald return; 15186155b3d3S[email protected] } 1519729ed62eSMatthias Ringwald #endif 1520*f3b012f9SMatthias Ringwald // SKIP LE init for Classic only configuration 1521*f3b012f9SMatthias Ringwald hci_init_done(); 1522*f3b012f9SMatthias Ringwald return; 1523*f3b012f9SMatthias Ringwald #endif /* ENABLE_SCO_OVER_HCI */ 1524*f3b012f9SMatthias Ringwald 1525a650ba4dSMatthias Ringwald // Response to command before init done state -> init done 1526a650ba4dSMatthias Ringwald case (HCI_INIT_DONE-1): 1527a650ba4dSMatthias Ringwald hci_init_done(); 1528a650ba4dSMatthias Ringwald return; 1529a650ba4dSMatthias Ringwald 15306155b3d3S[email protected] default: 153174b323a9SMatthias Ringwald break; 15326155b3d3S[email protected] } 153355975f88SMatthias Ringwald hci_initializing_next_state(); 15346155b3d3S[email protected] } 15356155b3d3S[email protected] 153616833f0aSmatthias.ringwald static void event_handler(uint8_t *packet, int size){ 1537e76a89eeS[email protected] 1538e76a89eeS[email protected] uint16_t event_length = packet[1]; 1539e76a89eeS[email protected] 1540e76a89eeS[email protected] // assert packet is complete 1541e76a89eeS[email protected] if (size != event_length + 2){ 1542f04a0c31SMatthias Ringwald log_error("hci.c: event_handler called with event packet of wrong size %d, expected %u => dropping packet", size, event_length + 2); 1543e76a89eeS[email protected] return; 1544e76a89eeS[email protected] } 1545e76a89eeS[email protected] 15461281a47eSmatthias.ringwald bd_addr_t addr; 154796a45072S[email protected] bd_addr_type_t addr_type; 15482d00edd4Smatthias.ringwald uint8_t link_type; 1549fe1ed1b8Smatthias.ringwald hci_con_handle_t handle; 15501f7b95a1Smatthias.ringwald hci_connection_t * conn; 155156cf178bSmatthias.ringwald int i; 155222909952Smatthias.ringwald 155335454696SMatthias Ringwald // warnings 155435454696SMatthias Ringwald (void) link_type; 155535454696SMatthias Ringwald 15560e2df43fSMatthias Ringwald // log_info("HCI:EVENT:%02x", hci_event_packet_get_type(packet)); 15575909f7f2Smatthias.ringwald 15580e2df43fSMatthias Ringwald switch (hci_event_packet_get_type(packet)) { 155922909952Smatthias.ringwald 15606772a24cSmatthias.ringwald case HCI_EVENT_COMMAND_COMPLETE: 15616bef4003SMatthias Ringwald // get num cmd packets - limit to 1 to reduce complexity 15626bef4003SMatthias Ringwald hci_stack->num_cmd_packets = packet[2] ? 1 : 0; 15637ec5eeaaSmatthias.ringwald 15649e263bd7SMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_read_local_name)){ 156506b9e820SMatthias Ringwald if (packet[5]) break; 15669e263bd7SMatthias Ringwald // terminate, name 248 chars 15679e263bd7SMatthias Ringwald packet[6+248] = 0; 15689e263bd7SMatthias Ringwald log_info("local name: %s", &packet[6]); 15699e263bd7SMatthias Ringwald } 1570073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_read_buffer_size)){ 1571e2edc0c3Smatthias.ringwald // from offset 5 1572e2edc0c3Smatthias.ringwald // status 15731d279b20Smatthias.ringwald // "The HC_ACL_Data_Packet_Length return parameter will be used to determine the size of the L2CAP segments contained in ACL Data Packets" 1574f8fbdce0SMatthias Ringwald hci_stack->acl_data_packet_length = little_endian_read_16(packet, 6); 1575a8b12447S[email protected] hci_stack->sco_data_packet_length = packet[8]; 1576f8fbdce0SMatthias Ringwald hci_stack->acl_packets_total_num = little_endian_read_16(packet, 9); 1577f8fbdce0SMatthias Ringwald hci_stack->sco_packets_total_num = little_endian_read_16(packet, 11); 1578a8b12447S[email protected] 15793a9fb326S[email protected] if (hci_stack->state == HCI_STATE_INITIALIZING){ 1580a7a04bd9Smatthias.ringwald // determine usable ACL payload size 15813a9fb326S[email protected] if (HCI_ACL_PAYLOAD_SIZE < hci_stack->acl_data_packet_length){ 15823a9fb326S[email protected] hci_stack->acl_data_packet_length = HCI_ACL_PAYLOAD_SIZE; 15838f8108aaSmatthias.ringwald } 15841a06f663S[email protected] log_info("hci_read_buffer_size: acl used size %u, count %u / sco size %u, count %u", 15851a06f663S[email protected] hci_stack->acl_data_packet_length, hci_stack->acl_packets_total_num, 15861a06f663S[email protected] hci_stack->sco_data_packet_length, hci_stack->sco_packets_total_num); 1587e2edc0c3Smatthias.ringwald } 158856cf178bSmatthias.ringwald } 1589a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 1590073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_le_read_buffer_size)){ 1591f8fbdce0SMatthias Ringwald hci_stack->le_data_packets_length = little_endian_read_16(packet, 6); 1592ee303eddS[email protected] hci_stack->le_acl_packets_total_num = packet[8]; 15936c26b087S[email protected] // determine usable ACL payload size 15946c26b087S[email protected] if (HCI_ACL_PAYLOAD_SIZE < hci_stack->le_data_packets_length){ 15956c26b087S[email protected] hci_stack->le_data_packets_length = HCI_ACL_PAYLOAD_SIZE; 15966c26b087S[email protected] } 15979da54300S[email protected] log_info("hci_le_read_buffer_size: size %u, count %u", hci_stack->le_data_packets_length, hci_stack->le_acl_packets_total_num); 159865a46ef3S[email protected] } 1599d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 1600073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_le_read_white_list_size)){ 1601e691bb38SMatthias Ringwald hci_stack->le_whitelist_capacity = packet[6]; 160215d0a15bSMatthias Ringwald log_info("hci_le_read_white_list_size: size %u", hci_stack->le_whitelist_capacity); 16033b6d4121SMatthias Ringwald } 160465a46ef3S[email protected] #endif 1605d70217a2SMatthias Ringwald #endif 1606073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_read_bd_addr)) { 1607724d70a2SMatthias Ringwald reverse_bd_addr(&packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE + 1], 1608724d70a2SMatthias Ringwald hci_stack->local_bd_addr); 16099da54300S[email protected] log_info("Local Address, Status: 0x%02x: Addr: %s", 16103a9fb326S[email protected] packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE], bd_addr_to_str(hci_stack->local_bd_addr)); 161133373e40SMatthias Ringwald #ifdef ENABLE_CLASSIC 16121624665aSMatthias Ringwald if (hci_stack->link_key_db){ 16131624665aSMatthias Ringwald hci_stack->link_key_db->set_local_bd_addr(hci_stack->local_bd_addr); 16141624665aSMatthias Ringwald } 161533373e40SMatthias Ringwald #endif 1616188981d2Smatthias.ringwald } 161735454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 1618073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_write_scan_enable)){ 16193a9fb326S[email protected] hci_emit_discoverable_enabled(hci_stack->discoverable); 1620381fbed8Smatthias.ringwald } 162135454696SMatthias Ringwald #endif 162235454696SMatthias Ringwald 162365389bfcS[email protected] // Note: HCI init checks 1624073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_read_local_supported_features)){ 16253a9fb326S[email protected] memcpy(hci_stack->local_supported_features, &packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1], 8); 162665389bfcS[email protected] 162735454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 1628a5a23fc2S[email protected] // determine usable ACL packet types based on host buffer size and supported features 1629a5a23fc2S[email protected] hci_stack->packet_types = hci_acl_packet_types_for_buffer_size_and_local_features(HCI_ACL_PAYLOAD_SIZE, &hci_stack->local_supported_features[0]); 16308b96126aSMatthias Ringwald log_info("Packet types %04x, eSCO %u", hci_stack->packet_types, hci_extended_sco_link_supported()); 163135454696SMatthias Ringwald #endif 1632f5d8d141S[email protected] // Classic/LE 1633f5d8d141S[email protected] log_info("BR/EDR support %u, LE support %u", hci_classic_supported(), hci_le_supported()); 1634559e517eS[email protected] } 1635073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_read_local_version_information)){ 1636f8fbdce0SMatthias Ringwald // hci_stack->hci_version = little_endian_read_16(packet, 4); 1637f8fbdce0SMatthias Ringwald // hci_stack->hci_revision = little_endian_read_16(packet, 6); 1638f8fbdce0SMatthias Ringwald // hci_stack->lmp_version = little_endian_read_16(packet, 8); 1639f8fbdce0SMatthias Ringwald hci_stack->manufacturer = little_endian_read_16(packet, 10); 1640f8fbdce0SMatthias Ringwald // hci_stack->lmp_subversion = little_endian_read_16(packet, 12); 16414696bddbSMatthias Ringwald log_info("Manufacturer: 0x%04x", hci_stack->manufacturer); 16424696bddbSMatthias Ringwald } 1643073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_read_local_supported_commands)){ 1644a828a756SMatthias Ringwald hci_stack->local_supported_commands[0] = 16453905afbfSMatthias Ringwald (packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+14] & 0x80) >> 7 | // bit 0 = Octet 14, bit 7 16463905afbfSMatthias Ringwald (packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+24] & 0x40) >> 5 | // bit 1 = Octet 24, bit 6 16473905afbfSMatthias Ringwald (packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+10] & 0x10) >> 2 | // bit 2 = Octet 10, bit 4 16483905afbfSMatthias Ringwald (packet[OFFSET_OF_DATA_IN_COMMAND_COMPLETE+1+18] & 0x08); // bit 3 = Octet 18, bit 3 16493905afbfSMatthias Ringwald log_info("Local supported commands summary 0x%02x", hci_stack->local_supported_commands[0]); 1650a828a756SMatthias Ringwald } 1651e8c8828eSMatthias Ringwald #ifdef ENABLE_CLASSIC 1652073bd0faSMatthias Ringwald if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_write_synchronous_flow_control_enable)){ 16535b9b590fSMatthias Ringwald if (packet[5] == 0){ 16545b9b590fSMatthias Ringwald hci_stack->synchronous_flow_control_enabled = 1; 16555b9b590fSMatthias Ringwald } 16565b9b590fSMatthias Ringwald } 1657e8c8828eSMatthias Ringwald #endif 165856cf178bSmatthias.ringwald break; 165956cf178bSmatthias.ringwald 16607ec5eeaaSmatthias.ringwald case HCI_EVENT_COMMAND_STATUS: 16616bef4003SMatthias Ringwald // get num cmd packets - limit to 1 to reduce complexity 16626bef4003SMatthias Ringwald hci_stack->num_cmd_packets = packet[3] ? 1 : 0; 16637ec5eeaaSmatthias.ringwald break; 16647ec5eeaaSmatthias.ringwald 16652e440c8aS[email protected] case HCI_EVENT_NUMBER_OF_COMPLETED_PACKETS:{ 16662e440c8aS[email protected] int offset = 3; 166756cf178bSmatthias.ringwald for (i=0; i<packet[2];i++){ 1668f8fbdce0SMatthias Ringwald handle = little_endian_read_16(packet, offset); 16692e440c8aS[email protected] offset += 2; 1670f8fbdce0SMatthias Ringwald uint16_t num_packets = little_endian_read_16(packet, offset); 16712e440c8aS[email protected] offset += 2; 16722e440c8aS[email protected] 16735061f3afS[email protected] conn = hci_connection_for_handle(handle); 167456cf178bSmatthias.ringwald if (!conn){ 16759da54300S[email protected] log_error("hci_number_completed_packet lists unused con handle %u", handle); 167656cf178bSmatthias.ringwald continue; 167756cf178bSmatthias.ringwald } 167823bed257S[email protected] 1679e35edcc1S[email protected] if (conn->address_type == BD_ADDR_TYPE_SCO){ 168035454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 1681e35edcc1S[email protected] if (conn->num_sco_packets_sent >= num_packets){ 1682e35edcc1S[email protected] conn->num_sco_packets_sent -= num_packets; 1683e35edcc1S[email protected] } else { 1684e35edcc1S[email protected] log_error("hci_number_completed_packets, more sco slots freed then sent."); 1685e35edcc1S[email protected] conn->num_sco_packets_sent = 0; 1686e35edcc1S[email protected] } 1687701e3307SMatthias Ringwald hci_notify_if_sco_can_send_now(); 168835454696SMatthias Ringwald #endif 1689e35edcc1S[email protected] } else { 169023bed257S[email protected] if (conn->num_acl_packets_sent >= num_packets){ 169156cf178bSmatthias.ringwald conn->num_acl_packets_sent -= num_packets; 169223bed257S[email protected] } else { 1693e35edcc1S[email protected] log_error("hci_number_completed_packets, more acl slots freed then sent."); 169423bed257S[email protected] conn->num_acl_packets_sent = 0; 169523bed257S[email protected] } 1696e35edcc1S[email protected] } 16979da54300S[email protected] // log_info("hci_number_completed_packet %u processed for handle %u, outstanding %u", num_packets, handle, conn->num_acl_packets_sent); 169856cf178bSmatthias.ringwald } 16996772a24cSmatthias.ringwald break; 17002e440c8aS[email protected] } 170135454696SMatthias Ringwald 170235454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 17031f7b95a1Smatthias.ringwald case HCI_EVENT_CONNECTION_REQUEST: 1704724d70a2SMatthias Ringwald reverse_bd_addr(&packet[2], addr); 170537eaa4cfSmatthias.ringwald // TODO: eval COD 8-10 17062d00edd4Smatthias.ringwald link_type = packet[11]; 17079da54300S[email protected] log_info("Connection_incoming: %s, type %u", bd_addr_to_str(addr), link_type); 1708e35edcc1S[email protected] addr_type = link_type == 1 ? BD_ADDR_TYPE_CLASSIC : BD_ADDR_TYPE_SCO; 17092e77e513S[email protected] conn = hci_connection_for_bd_addr_and_type(addr, addr_type); 17101f7b95a1Smatthias.ringwald if (!conn) { 17115293c072S[email protected] conn = create_connection_for_bd_addr_and_type(addr, addr_type); 17121f7b95a1Smatthias.ringwald } 1713ce4c8fabSmatthias.ringwald if (!conn) { 1714ce4c8fabSmatthias.ringwald // CONNECTION REJECTED DUE TO LIMITED RESOURCES (0X0D) 17153a9fb326S[email protected] hci_stack->decline_reason = 0x0d; 1716058e3d6bSMatthias Ringwald bd_addr_copy(hci_stack->decline_addr, addr); 1717ce4c8fabSmatthias.ringwald break; 1718ce4c8fabSmatthias.ringwald } 17195cf766e8SMatthias Ringwald conn->role = HCI_ROLE_SLAVE; 172032ab9390Smatthias.ringwald conn->state = RECEIVED_CONNECTION_REQUEST; 1721f3a16b9aSMatthias Ringwald // store info about eSCO 1722f3a16b9aSMatthias Ringwald if (link_type == 0x02){ 1723f3a16b9aSMatthias Ringwald conn->remote_supported_feature_eSCO = 1; 1724f3a16b9aSMatthias Ringwald } 172532ab9390Smatthias.ringwald hci_run(); 17261f7b95a1Smatthias.ringwald break; 17271f7b95a1Smatthias.ringwald 17286772a24cSmatthias.ringwald case HCI_EVENT_CONNECTION_COMPLETE: 1729fe1ed1b8Smatthias.ringwald // Connection management 1730724d70a2SMatthias Ringwald reverse_bd_addr(&packet[5], addr); 17319da54300S[email protected] log_info("Connection_complete (status=%u) %s", packet[2], bd_addr_to_str(addr)); 173296a45072S[email protected] addr_type = BD_ADDR_TYPE_CLASSIC; 17332e77e513S[email protected] conn = hci_connection_for_bd_addr_and_type(addr, addr_type); 1734fe1ed1b8Smatthias.ringwald if (conn) { 1735b448a0e7Smatthias.ringwald if (!packet[2]){ 1736c8e4258aSmatthias.ringwald conn->state = OPEN; 1737f8fbdce0SMatthias Ringwald conn->con_handle = little_endian_read_16(packet, 3); 1738ad83dc6aS[email protected] conn->bonding_flags |= BONDING_REQUEST_REMOTE_FEATURES; 1739ee091cf1Smatthias.ringwald 1740c785ef68Smatthias.ringwald // restart timer 1741528a4a3bSMatthias Ringwald btstack_run_loop_set_timer(&conn->timeout, HCI_CONNECTION_TIMEOUT_MS); 1742528a4a3bSMatthias Ringwald btstack_run_loop_add_timer(&conn->timeout); 1743c785ef68Smatthias.ringwald 17449da54300S[email protected] log_info("New connection: handle %u, %s", conn->con_handle, bd_addr_to_str(conn->address)); 174543bfb1bdSmatthias.ringwald 174643bfb1bdSmatthias.ringwald hci_emit_nr_connections_changed(); 1747b448a0e7Smatthias.ringwald } else { 17481bd5283dS[email protected] int notify_dedicated_bonding_failed = conn->bonding_flags & BONDING_DEDICATED; 17491bd5283dS[email protected] uint8_t status = packet[2]; 17501bd5283dS[email protected] bd_addr_t bd_address; 17511bd5283dS[email protected] memcpy(&bd_address, conn->address, 6); 1752ad83dc6aS[email protected] 1753b448a0e7Smatthias.ringwald // connection failed, remove entry 1754665d90f2SMatthias Ringwald btstack_linked_list_remove(&hci_stack->connections, (btstack_linked_item_t *) conn); 1755a3b02b71Smatthias.ringwald btstack_memory_hci_connection_free( conn ); 1756c12e46e7Smatthias.ringwald 17571bd5283dS[email protected] // notify client if dedicated bonding 17581bd5283dS[email protected] if (notify_dedicated_bonding_failed){ 17591bd5283dS[email protected] log_info("hci notify_dedicated_bonding_failed"); 17601bd5283dS[email protected] hci_emit_dedicated_bonding_result(bd_address, status); 17611bd5283dS[email protected] } 17621bd5283dS[email protected] 1763c12e46e7Smatthias.ringwald // if authentication error, also delete link key 1764c12e46e7Smatthias.ringwald if (packet[2] == 0x05) { 176515a95bd5SMatthias Ringwald gap_drop_link_key_for_bd_addr(addr); 1766c12e46e7Smatthias.ringwald } 1767fe1ed1b8Smatthias.ringwald } 1768fe1ed1b8Smatthias.ringwald } 17696772a24cSmatthias.ringwald break; 1770fe1ed1b8Smatthias.ringwald 177144d0e3d5S[email protected] case HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE: 1772724d70a2SMatthias Ringwald reverse_bd_addr(&packet[5], addr); 177344d0e3d5S[email protected] log_info("Synchronous Connection Complete (status=%u) %s", packet[2], bd_addr_to_str(addr)); 17741a06f663S[email protected] if (packet[2]){ 177544d0e3d5S[email protected] // connection failed 177644d0e3d5S[email protected] break; 177744d0e3d5S[email protected] } 17782e77e513S[email protected] conn = hci_connection_for_bd_addr_and_type(addr, BD_ADDR_TYPE_SCO); 1779e35edcc1S[email protected] if (!conn) { 1780e35edcc1S[email protected] conn = create_connection_for_bd_addr_and_type(addr, BD_ADDR_TYPE_SCO); 1781e35edcc1S[email protected] } 1782e35edcc1S[email protected] if (!conn) { 1783e35edcc1S[email protected] break; 1784e35edcc1S[email protected] } 17851a06f663S[email protected] conn->state = OPEN; 1786f8fbdce0SMatthias Ringwald conn->con_handle = little_endian_read_16(packet, 3); 1787ee752bb8SMatthias Ringwald 1788ee752bb8SMatthias Ringwald #ifdef ENABLE_SCO_OVER_HCI 1789ee752bb8SMatthias Ringwald // update SCO 1790ee752bb8SMatthias Ringwald if (conn->address_type == BD_ADDR_TYPE_SCO && hci_stack->hci_transport && hci_stack->hci_transport->set_sco_config){ 1791ee752bb8SMatthias Ringwald hci_stack->hci_transport->set_sco_config(hci_stack->sco_voice_setting_active, hci_number_sco_connections()); 1792ee752bb8SMatthias Ringwald } 1793ee752bb8SMatthias Ringwald #endif 179444d0e3d5S[email protected] break; 179544d0e3d5S[email protected] 1796afd4e962S[email protected] case HCI_EVENT_READ_REMOTE_SUPPORTED_FEATURES_COMPLETE: 1797f8fbdce0SMatthias Ringwald handle = little_endian_read_16(packet, 3); 1798afd4e962S[email protected] conn = hci_connection_for_handle(handle); 1799afd4e962S[email protected] if (!conn) break; 1800afd4e962S[email protected] if (!packet[2]){ 1801afd4e962S[email protected] uint8_t * features = &packet[5]; 1802afd4e962S[email protected] if (features[6] & (1 << 3)){ 1803afd4e962S[email protected] conn->bonding_flags |= BONDING_REMOTE_SUPPORTS_SSP; 1804afd4e962S[email protected] } 180598a2fd1cSMatthias Ringwald if (features[3] & (1<<7)){ 180698a2fd1cSMatthias Ringwald conn->remote_supported_feature_eSCO = 1; 180798a2fd1cSMatthias Ringwald } 1808afd4e962S[email protected] } 1809afd4e962S[email protected] conn->bonding_flags |= BONDING_RECEIVED_REMOTE_FEATURES; 181098a2fd1cSMatthias Ringwald log_info("HCI_EVENT_READ_REMOTE_SUPPORTED_FEATURES_COMPLETE, bonding flags %x, eSCO %u", conn->bonding_flags, conn->remote_supported_feature_eSCO); 1811ad83dc6aS[email protected] if (conn->bonding_flags & BONDING_DEDICATED){ 1812ad83dc6aS[email protected] conn->bonding_flags |= BONDING_SEND_AUTHENTICATE_REQUEST; 1813ad83dc6aS[email protected] } 1814afd4e962S[email protected] break; 1815afd4e962S[email protected] 18167fde4af9Smatthias.ringwald case HCI_EVENT_LINK_KEY_REQUEST: 18179da54300S[email protected] log_info("HCI_EVENT_LINK_KEY_REQUEST"); 18187fde4af9Smatthias.ringwald hci_add_connection_flags_for_flipped_bd_addr(&packet[2], RECV_LINK_KEY_REQUEST); 181974d716b5S[email protected] // non-bondable mode: link key negative reply will be sent by HANDLE_LINK_KEY_REQUEST 1820a98592bcSMatthias Ringwald if (hci_stack->bondable && !hci_stack->link_key_db) break; 182132ab9390Smatthias.ringwald hci_add_connection_flags_for_flipped_bd_addr(&packet[2], HANDLE_LINK_KEY_REQUEST); 182264472d52Smatthias.ringwald hci_run(); 1823d9a327f9Smatthias.ringwald // request handled by hci_run() as HANDLE_LINK_KEY_REQUEST gets set 182429d53098Smatthias.ringwald return; 18257fde4af9Smatthias.ringwald 18269ab95c90S[email protected] case HCI_EVENT_LINK_KEY_NOTIFICATION: { 1827724d70a2SMatthias Ringwald reverse_bd_addr(&packet[2], addr); 18282e77e513S[email protected] conn = hci_connection_for_bd_addr_and_type(addr, BD_ADDR_TYPE_CLASSIC); 18299ab95c90S[email protected] if (!conn) break; 18309ab95c90S[email protected] conn->authentication_flags |= RECV_LINK_KEY_NOTIFICATION; 18317bdc6798S[email protected] link_key_type_t link_key_type = (link_key_type_t)packet[24]; 18329ab95c90S[email protected] // Change Connection Encryption keeps link key type 18339ab95c90S[email protected] if (link_key_type != CHANGED_COMBINATION_KEY){ 18349ab95c90S[email protected] conn->link_key_type = link_key_type; 18359ab95c90S[email protected] } 183655597469SMatthias Ringwald gap_store_link_key_for_bd_addr(addr, &packet[8], conn->link_key_type); 183729d53098Smatthias.ringwald // still forward event to allow dismiss of pairing dialog 18387fde4af9Smatthias.ringwald break; 18399ab95c90S[email protected] } 18407fde4af9Smatthias.ringwald 18417fde4af9Smatthias.ringwald case HCI_EVENT_PIN_CODE_REQUEST: 18426724cd9eS[email protected] hci_add_connection_flags_for_flipped_bd_addr(&packet[2], LEGACY_PAIRING_ACTIVE); 18434c57c146S[email protected] // non-bondable mode: pin code negative reply will be sent 18443a9fb326S[email protected] if (!hci_stack->bondable){ 1845899283eaS[email protected] hci_add_connection_flags_for_flipped_bd_addr(&packet[2], DENY_PIN_CODE_REQUEST); 1846f8fb5f6eS[email protected] hci_run(); 1847f8fb5f6eS[email protected] return; 18484c57c146S[email protected] } 1849d9a327f9Smatthias.ringwald // PIN CODE REQUEST means the link key request didn't succee -> delete stored link key 1850a98592bcSMatthias Ringwald if (!hci_stack->link_key_db) break; 1851a6ef64baSMilanka Ringwald hci_event_pin_code_request_get_bd_addr(packet, addr); 1852a98592bcSMatthias Ringwald hci_stack->link_key_db->delete_link_key(addr); 18537fde4af9Smatthias.ringwald break; 18547fde4af9Smatthias.ringwald 18551d6b20aeS[email protected] case HCI_EVENT_IO_CAPABILITY_REQUEST: 18561d6b20aeS[email protected] hci_add_connection_flags_for_flipped_bd_addr(&packet[2], RECV_IO_CAPABILITIES_REQUEST); 1857dbe1a790S[email protected] hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SEND_IO_CAPABILITIES_REPLY); 1858dbe1a790S[email protected] break; 1859dbe1a790S[email protected] 1860dbe1a790S[email protected] case HCI_EVENT_USER_CONFIRMATION_REQUEST: 18616724cd9eS[email protected] hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SSP_PAIRING_ACTIVE); 18623a9fb326S[email protected] if (!hci_stack->ssp_auto_accept) break; 1863dbe1a790S[email protected] hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SEND_USER_CONFIRM_REPLY); 1864dbe1a790S[email protected] break; 1865dbe1a790S[email protected] 1866dbe1a790S[email protected] case HCI_EVENT_USER_PASSKEY_REQUEST: 18676724cd9eS[email protected] hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SSP_PAIRING_ACTIVE); 18683a9fb326S[email protected] if (!hci_stack->ssp_auto_accept) break; 1869dbe1a790S[email protected] hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SEND_USER_PASSKEY_REPLY); 18701d6b20aeS[email protected] break; 187135454696SMatthias Ringwald #endif 18721d6b20aeS[email protected] 1873f0944df2S[email protected] case HCI_EVENT_ENCRYPTION_CHANGE: 1874f8fbdce0SMatthias Ringwald handle = little_endian_read_16(packet, 3); 1875f0944df2S[email protected] conn = hci_connection_for_handle(handle); 1876f0944df2S[email protected] if (!conn) break; 1877ad83dc6aS[email protected] if (packet[2] == 0) { 1878f0944df2S[email protected] if (packet[5]){ 1879f0944df2S[email protected] conn->authentication_flags |= CONNECTION_ENCRYPTED; 1880f0944df2S[email protected] } else { 1881536f9994S[email protected] conn->authentication_flags &= ~CONNECTION_ENCRYPTED; 1882f0944df2S[email protected] } 1883ad83dc6aS[email protected] } 188435454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 1885a00031e2S[email protected] hci_emit_security_level(handle, gap_security_level_for_connection(conn)); 188635454696SMatthias Ringwald #endif 1887f0944df2S[email protected] break; 1888f0944df2S[email protected] 188935454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 18901eb2563eS[email protected] case HCI_EVENT_AUTHENTICATION_COMPLETE_EVENT: 1891f8fbdce0SMatthias Ringwald handle = little_endian_read_16(packet, 3); 18921eb2563eS[email protected] conn = hci_connection_for_handle(handle); 18931eb2563eS[email protected] if (!conn) break; 1894ad83dc6aS[email protected] 1895ad83dc6aS[email protected] // dedicated bonding: send result and disconnect 1896ad83dc6aS[email protected] if (conn->bonding_flags & BONDING_DEDICATED){ 1897ad83dc6aS[email protected] conn->bonding_flags &= ~BONDING_DEDICATED; 1898ad83dc6aS[email protected] conn->bonding_flags |= BONDING_DISCONNECT_DEDICATED_DONE; 18991bd5283dS[email protected] conn->bonding_status = packet[2]; 1900ad83dc6aS[email protected] break; 1901ad83dc6aS[email protected] } 1902ad83dc6aS[email protected] 1903b5cb6874S[email protected] if (packet[2] == 0 && gap_security_level_for_link_key_type(conn->link_key_type) >= conn->requested_security_level){ 19041eb2563eS[email protected] // link key sufficient for requested security 19051eb2563eS[email protected] conn->bonding_flags |= BONDING_SEND_ENCRYPTION_REQUEST; 1906ad83dc6aS[email protected] break; 1907ad83dc6aS[email protected] } 19081eb2563eS[email protected] // not enough 19091eb2563eS[email protected] hci_emit_security_level(handle, gap_security_level_for_connection(conn)); 19101eb2563eS[email protected] break; 191135454696SMatthias Ringwald #endif 191234d2123cS[email protected] 191386805605S[email protected] // HCI_EVENT_DISCONNECTION_COMPLETE 1914ccda6e14S[email protected] // has been split, to first notify stack before shutting connection down 1915ccda6e14S[email protected] // see end of function, too. 1916a4f30ec0S[email protected] case HCI_EVENT_DISCONNECTION_COMPLETE: 1917a4f30ec0S[email protected] if (packet[2]) break; // status != 0 1918f8fbdce0SMatthias Ringwald handle = little_endian_read_16(packet, 3); 1919c6a37cfdSMatthias Ringwald // drop outgoing ACL fragments if it is for closed connection 1920c6a37cfdSMatthias Ringwald if (hci_stack->acl_fragmentation_total_size > 0) { 1921c6a37cfdSMatthias Ringwald if (handle == READ_ACL_CONNECTION_HANDLE(hci_stack->hci_packet_buffer)){ 1922c6a37cfdSMatthias Ringwald log_info("hci: drop fragmented ACL data for closed connection"); 1923c6a37cfdSMatthias Ringwald hci_stack->acl_fragmentation_total_size = 0; 1924c6a37cfdSMatthias Ringwald hci_stack->acl_fragmentation_pos = 0; 1925c6a37cfdSMatthias Ringwald } 1926c6a37cfdSMatthias Ringwald } 192735454696SMatthias Ringwald 19289a2e4658SMatthias Ringwald // re-enable advertisements for le connections if active 1929c6a37cfdSMatthias Ringwald conn = hci_connection_for_handle(handle); 1930c6a37cfdSMatthias Ringwald if (!conn) break; 193135454696SMatthias Ringwald #ifdef ENABLE_BLE 1932d70217a2SMatthias Ringwald #ifdef ENABLE_LE_PERIPHERAL 19339a2e4658SMatthias Ringwald if (hci_is_le_connection(conn) && hci_stack->le_advertisements_enabled){ 19349a2e4658SMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_ENABLE; 19359a2e4658SMatthias Ringwald } 193635454696SMatthias Ringwald #endif 1937d70217a2SMatthias Ringwald #endif 1938ccda6e14S[email protected] conn->state = RECEIVED_DISCONNECTION_COMPLETE; 1939ccda6e14S[email protected] break; 19406772a24cSmatthias.ringwald 1941c68bdf90Smatthias.ringwald case HCI_EVENT_HARDWARE_ERROR: 1942313e5f9cSMatthias Ringwald log_error("Hardware Error: 0x%02x", packet[2]); 1943d23838ecSMatthias Ringwald if (hci_stack->hardware_error_callback){ 1944c2e1fa60SMatthias Ringwald (*hci_stack->hardware_error_callback)(packet[2]); 19457586ee35S[email protected] } else { 19467586ee35S[email protected] // if no special requests, just reboot stack 19477586ee35S[email protected] hci_power_control_off(); 19487586ee35S[email protected] hci_power_control_on(); 1949c68bdf90Smatthias.ringwald } 1950c68bdf90Smatthias.ringwald break; 1951c68bdf90Smatthias.ringwald 19520e6f3837SMatthias Ringwald #ifdef ENABLE_CLASSIC 19535cf766e8SMatthias Ringwald case HCI_EVENT_ROLE_CHANGE: 19545cf766e8SMatthias Ringwald if (packet[2]) break; // status != 0 1955f8fbdce0SMatthias Ringwald handle = little_endian_read_16(packet, 3); 19565cf766e8SMatthias Ringwald conn = hci_connection_for_handle(handle); 19575cf766e8SMatthias Ringwald if (!conn) break; // no conn 19585cf766e8SMatthias Ringwald conn->role = packet[9]; 19595cf766e8SMatthias Ringwald break; 19600e6f3837SMatthias Ringwald #endif 19615cf766e8SMatthias Ringwald 196263fa3374SMatthias Ringwald case HCI_EVENT_TRANSPORT_PACKET_SENT: 1963d051460cS[email protected] // release packet buffer only for asynchronous transport and if there are not further fragements 19644fa24b5fS[email protected] if (hci_transport_synchronous()) { 196563fa3374SMatthias Ringwald log_error("Synchronous HCI Transport shouldn't send HCI_EVENT_TRANSPORT_PACKET_SENT"); 19664fa24b5fS[email protected] return; // instead of break: to avoid re-entering hci_run() 19674fa24b5fS[email protected] } 1968d051460cS[email protected] if (hci_stack->acl_fragmentation_total_size) break; 1969d051460cS[email protected] hci_release_packet_buffer(); 1970701e3307SMatthias Ringwald 197163fa3374SMatthias Ringwald // L2CAP receives this event via the hci_emit_event below 197263fa3374SMatthias Ringwald 197335454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 197463fa3374SMatthias Ringwald // For SCO, we do the can_send_now_check here 1975701e3307SMatthias Ringwald hci_notify_if_sco_can_send_now(); 197635454696SMatthias Ringwald #endif 19776b4af23dS[email protected] break; 19786b4af23dS[email protected] 197935454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 198063fa3374SMatthias Ringwald case HCI_EVENT_SCO_CAN_SEND_NOW: 198163fa3374SMatthias Ringwald // For SCO, we do the can_send_now_check here 198263fa3374SMatthias Ringwald hci_notify_if_sco_can_send_now(); 198363fa3374SMatthias Ringwald return; 198435454696SMatthias Ringwald #endif 198563fa3374SMatthias Ringwald 1986a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 19875909f7f2Smatthias.ringwald case HCI_EVENT_LE_META: 19885909f7f2Smatthias.ringwald switch (packet[2]){ 1989d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 199057c9da5bS[email protected] case HCI_SUBEVENT_LE_ADVERTISING_REPORT: 19914f4e0224SMatthias Ringwald // log_info("advertising report received"); 19927bdc6798S[email protected] if (hci_stack->le_scanning_state != LE_SCANNING) break; 199357c9da5bS[email protected] le_handle_advertisement_report(packet, size); 19947bdc6798S[email protected] break; 1995d70217a2SMatthias Ringwald #endif 19965909f7f2Smatthias.ringwald case HCI_SUBEVENT_LE_CONNECTION_COMPLETE: 19975909f7f2Smatthias.ringwald // Connection management 1998724d70a2SMatthias Ringwald reverse_bd_addr(&packet[8], addr); 19997bdc6798S[email protected] addr_type = (bd_addr_type_t)packet[7]; 20009da54300S[email protected] log_info("LE Connection_complete (status=%u) type %u, %s", packet[3], addr_type, bd_addr_to_str(addr)); 20012e77e513S[email protected] conn = hci_connection_for_bd_addr_and_type(addr, addr_type); 2002d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 200342ff5ba1SMatthias Ringwald // if auto-connect, remove from whitelist in both roles 200442ff5ba1SMatthias Ringwald if (hci_stack->le_connecting_state == LE_CONNECTING_WHITELIST){ 200542ff5ba1SMatthias Ringwald hci_remove_from_whitelist(addr_type, addr); 200642ff5ba1SMatthias Ringwald } 200742ff5ba1SMatthias Ringwald // handle error: error is reported only to the initiator -> outgoing connection 20085909f7f2Smatthias.ringwald if (packet[3]){ 200942ff5ba1SMatthias Ringwald // outgoing connection establishment is done 201042ff5ba1SMatthias Ringwald hci_stack->le_connecting_state = LE_CONNECTING_IDLE; 201142ff5ba1SMatthias Ringwald // remove entry 20125909f7f2Smatthias.ringwald if (conn){ 2013665d90f2SMatthias Ringwald btstack_linked_list_remove(&hci_stack->connections, (btstack_linked_item_t *) conn); 20145909f7f2Smatthias.ringwald btstack_memory_hci_connection_free( conn ); 20155909f7f2Smatthias.ringwald } 20165909f7f2Smatthias.ringwald break; 20175909f7f2Smatthias.ringwald } 2018d70217a2SMatthias Ringwald #endif 201942ff5ba1SMatthias Ringwald // on success, both hosts receive connection complete event 20205cf766e8SMatthias Ringwald if (packet[6] == HCI_ROLE_MASTER){ 2021d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 202242ff5ba1SMatthias Ringwald // if we're master, it was an outgoing connection and we're done with it 202342ff5ba1SMatthias Ringwald hci_stack->le_connecting_state = LE_CONNECTING_IDLE; 2024d70217a2SMatthias Ringwald #endif 202542ff5ba1SMatthias Ringwald } else { 2026d70217a2SMatthias Ringwald #ifdef ENABLE_LE_PERIPHERAL 202742ff5ba1SMatthias Ringwald // if we're slave, it was an incoming connection, advertisements have stopped 2028171293d3SMatthias Ringwald hci_stack->le_advertisements_active = 0; 20295106e6dcSMatthias Ringwald // try to re-enable them 20305106e6dcSMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_ENABLE; 2031d70217a2SMatthias Ringwald #endif 203242ff5ba1SMatthias Ringwald } 2033171293d3SMatthias Ringwald // LE connections are auto-accepted, so just create a connection if there isn't one already 203442ff5ba1SMatthias Ringwald if (!conn){ 203596a45072S[email protected] conn = create_connection_for_bd_addr_and_type(addr, addr_type); 20365909f7f2Smatthias.ringwald } 203742ff5ba1SMatthias Ringwald // no memory, sorry. 20385909f7f2Smatthias.ringwald if (!conn){ 20395909f7f2Smatthias.ringwald break; 20405909f7f2Smatthias.ringwald } 20415909f7f2Smatthias.ringwald 20425909f7f2Smatthias.ringwald conn->state = OPEN; 20435cf766e8SMatthias Ringwald conn->role = packet[6]; 2044f8fbdce0SMatthias Ringwald conn->con_handle = little_endian_read_16(packet, 4); 20455909f7f2Smatthias.ringwald 20465909f7f2Smatthias.ringwald // TODO: store - role, peer address type, conn_interval, conn_latency, supervision timeout, master clock 20475909f7f2Smatthias.ringwald 20485909f7f2Smatthias.ringwald // restart timer 2049528a4a3bSMatthias Ringwald // btstack_run_loop_set_timer(&conn->timeout, HCI_CONNECTION_TIMEOUT_MS); 2050528a4a3bSMatthias Ringwald // btstack_run_loop_add_timer(&conn->timeout); 20515909f7f2Smatthias.ringwald 20529da54300S[email protected] log_info("New connection: handle %u, %s", conn->con_handle, bd_addr_to_str(conn->address)); 20535909f7f2Smatthias.ringwald 20545909f7f2Smatthias.ringwald hci_emit_nr_connections_changed(); 20555909f7f2Smatthias.ringwald break; 20565909f7f2Smatthias.ringwald 2057f8fbdce0SMatthias Ringwald // log_info("LE buffer size: %u, count %u", little_endian_read_16(packet,6), packet[8]); 205865a46ef3S[email protected] 20595909f7f2Smatthias.ringwald default: 20605909f7f2Smatthias.ringwald break; 20615909f7f2Smatthias.ringwald } 20625909f7f2Smatthias.ringwald break; 20635909f7f2Smatthias.ringwald #endif 20646772a24cSmatthias.ringwald default: 20656772a24cSmatthias.ringwald break; 2066fe1ed1b8Smatthias.ringwald } 2067fe1ed1b8Smatthias.ringwald 20683429f56bSmatthias.ringwald // handle BT initialization 20693a9fb326S[email protected] if (hci_stack->state == HCI_STATE_INITIALIZING){ 20706155b3d3S[email protected] hci_initializing_event_handler(packet, size); 2071c9af4d3fS[email protected] } 207222909952Smatthias.ringwald 207389db417bSmatthias.ringwald // help with BT sleep 20743a9fb326S[email protected] if (hci_stack->state == HCI_STATE_FALLING_ASLEEP 207574b323a9SMatthias Ringwald && hci_stack->substate == HCI_FALLING_ASLEEP_W4_WRITE_SCAN_ENABLE 2076073bd0faSMatthias Ringwald && HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_write_scan_enable)){ 207755975f88SMatthias Ringwald hci_initializing_next_state(); 207889db417bSmatthias.ringwald } 207989db417bSmatthias.ringwald 208086805605S[email protected] // notify upper stack 2081d6b06661SMatthias Ringwald hci_emit_event(packet, size, 0); // don't dump, already happened in packet handler 208294ab26f8Smatthias.ringwald 208386805605S[email protected] // moved here to give upper stack a chance to close down everything with hci_connection_t intact 20840e2df43fSMatthias Ringwald if (hci_event_packet_get_type(packet) == HCI_EVENT_DISCONNECTION_COMPLETE){ 208586805605S[email protected] if (!packet[2]){ 2086f8fbdce0SMatthias Ringwald handle = little_endian_read_16(packet, 3); 208705ae8de3SMatthias Ringwald hci_connection_t * aConn = hci_connection_for_handle(handle); 208805ae8de3SMatthias Ringwald if (aConn) { 208905ae8de3SMatthias Ringwald uint8_t status = aConn->bonding_status; 209005ae8de3SMatthias Ringwald uint16_t flags = aConn->bonding_flags; 209186805605S[email protected] bd_addr_t bd_address; 209205ae8de3SMatthias Ringwald memcpy(&bd_address, aConn->address, 6); 209305ae8de3SMatthias Ringwald hci_shutdown_connection(aConn); 2094bb820044S[email protected] // connection struct is gone, don't access anymore 2095bb820044S[email protected] if (flags & BONDING_EMIT_COMPLETE_ON_DISCONNECT){ 209686805605S[email protected] hci_emit_dedicated_bonding_result(bd_address, status); 209786805605S[email protected] } 209886805605S[email protected] } 209986805605S[email protected] } 210086805605S[email protected] } 210186805605S[email protected] 210294ab26f8Smatthias.ringwald // execute main loop 210394ab26f8Smatthias.ringwald hci_run(); 210416833f0aSmatthias.ringwald } 210516833f0aSmatthias.ringwald 210635454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 2107c91d150bS[email protected] static void sco_handler(uint8_t * packet, uint16_t size){ 21088abbe8b5SMatthias Ringwald if (!hci_stack->sco_packet_handler) return; 21093d50b4baSMatthias Ringwald hci_stack->sco_packet_handler(HCI_SCO_DATA_PACKET, 0, packet, size); 2110c91d150bS[email protected] } 211135454696SMatthias Ringwald #endif 2112c91d150bS[email protected] 21130a57e69fSmatthias.ringwald static void packet_handler(uint8_t packet_type, uint8_t *packet, uint16_t size){ 21145bb5bc3eS[email protected] hci_dump_packet(packet_type, 1, packet, size); 211510e830c9Smatthias.ringwald switch (packet_type) { 211610e830c9Smatthias.ringwald case HCI_EVENT_PACKET: 211710e830c9Smatthias.ringwald event_handler(packet, size); 211810e830c9Smatthias.ringwald break; 211910e830c9Smatthias.ringwald case HCI_ACL_DATA_PACKET: 212010e830c9Smatthias.ringwald acl_handler(packet, size); 212110e830c9Smatthias.ringwald break; 212235454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 2123c91d150bS[email protected] case HCI_SCO_DATA_PACKET: 2124c91d150bS[email protected] sco_handler(packet, size); 2125202c8a4cSMatthias Ringwald break; 212635454696SMatthias Ringwald #endif 212710e830c9Smatthias.ringwald default: 212810e830c9Smatthias.ringwald break; 212910e830c9Smatthias.ringwald } 213010e830c9Smatthias.ringwald } 213110e830c9Smatthias.ringwald 2132d6b06661SMatthias Ringwald /** 2133d6b06661SMatthias Ringwald * @brief Add event packet handler. 2134d6b06661SMatthias Ringwald */ 2135d6b06661SMatthias Ringwald void hci_add_event_handler(btstack_packet_callback_registration_t * callback_handler){ 2136d6b06661SMatthias Ringwald btstack_linked_list_add_tail(&hci_stack->event_handlers, (btstack_linked_item_t*) callback_handler); 2137d6b06661SMatthias Ringwald } 2138d6b06661SMatthias Ringwald 2139d6b06661SMatthias Ringwald 2140fcadd0caSmatthias.ringwald /** Register HCI packet handlers */ 21413d50b4baSMatthias Ringwald void hci_register_acl_packet_handler(btstack_packet_handler_t handler){ 2142fb37a842SMatthias Ringwald hci_stack->acl_packet_handler = handler; 214316833f0aSmatthias.ringwald } 214416833f0aSmatthias.ringwald 214535454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 21468abbe8b5SMatthias Ringwald /** 21478abbe8b5SMatthias Ringwald * @brief Registers a packet handler for SCO data. Used for HSP and HFP profiles. 21488abbe8b5SMatthias Ringwald */ 21493d50b4baSMatthias Ringwald void hci_register_sco_packet_handler(btstack_packet_handler_t handler){ 21508abbe8b5SMatthias Ringwald hci_stack->sco_packet_handler = handler; 21518abbe8b5SMatthias Ringwald } 215235454696SMatthias Ringwald #endif 21538abbe8b5SMatthias Ringwald 215471de195eSMatthias Ringwald static void hci_state_reset(void){ 2155595bdbfbS[email protected] // no connections yet 2156595bdbfbS[email protected] hci_stack->connections = NULL; 215774308b23Smatthias.ringwald 215874308b23Smatthias.ringwald // keep discoverable/connectable as this has been requested by the client(s) 215974308b23Smatthias.ringwald // hci_stack->discoverable = 0; 216074308b23Smatthias.ringwald // hci_stack->connectable = 0; 216174308b23Smatthias.ringwald // hci_stack->bondable = 1; 2162b95a5a35SMatthias Ringwald // hci_stack->own_addr_type = 0; 2163595bdbfbS[email protected] 216444935e40S[email protected] // buffer is free 216544935e40S[email protected] hci_stack->hci_packet_buffer_reserved = 0; 216644935e40S[email protected] 2167595bdbfbS[email protected] // no pending cmds 2168595bdbfbS[email protected] hci_stack->decline_reason = 0; 2169595bdbfbS[email protected] hci_stack->new_scan_enable_value = 0xff; 2170595bdbfbS[email protected] 2171595bdbfbS[email protected] // LE 2172b95a5a35SMatthias Ringwald #ifdef ENABLE_BLE 2173b95a5a35SMatthias Ringwald memset(hci_stack->le_random_address, 0, 6); 2174b95a5a35SMatthias Ringwald hci_stack->le_random_address_set = 0; 2175d70217a2SMatthias Ringwald #endif 2176d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 2177595bdbfbS[email protected] hci_stack->le_scanning_state = LE_SCAN_IDLE; 2178e2602ea2Smatthias.ringwald hci_stack->le_scan_type = 0xff; 2179b04dfa37SMatthias Ringwald hci_stack->le_connecting_state = LE_CONNECTING_IDLE; 2180e83201bcSMatthias Ringwald hci_stack->le_whitelist = 0; 2181e83201bcSMatthias Ringwald hci_stack->le_whitelist_capacity = 0; 2182d70217a2SMatthias Ringwald #endif 2183d70217a2SMatthias Ringwald 2184e21192abSMatthias Ringwald hci_stack->le_connection_parameter_range.le_conn_interval_min = 6; 2185e21192abSMatthias Ringwald hci_stack->le_connection_parameter_range.le_conn_interval_max = 3200; 2186e21192abSMatthias Ringwald hci_stack->le_connection_parameter_range.le_conn_latency_min = 0; 2187e21192abSMatthias Ringwald hci_stack->le_connection_parameter_range.le_conn_latency_max = 500; 2188e21192abSMatthias Ringwald hci_stack->le_connection_parameter_range.le_supervision_timeout_min = 10; 2189e21192abSMatthias Ringwald hci_stack->le_connection_parameter_range.le_supervision_timeout_max = 3200; 2190595bdbfbS[email protected] } 2191595bdbfbS[email protected] 219235454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 21932d5e09d6SMatthias Ringwald /** 21942d5e09d6SMatthias Ringwald * @brief Configure Bluetooth hardware control. Has to be called before power on. 21952d5e09d6SMatthias Ringwald */ 21962d5e09d6SMatthias Ringwald void hci_set_link_key_db(btstack_link_key_db_t const * link_key_db){ 21972d5e09d6SMatthias Ringwald // store and open remote device db 21982d5e09d6SMatthias Ringwald hci_stack->link_key_db = link_key_db; 21992d5e09d6SMatthias Ringwald if (hci_stack->link_key_db) { 22002d5e09d6SMatthias Ringwald hci_stack->link_key_db->open(); 22012d5e09d6SMatthias Ringwald } 22022d5e09d6SMatthias Ringwald } 220335454696SMatthias Ringwald #endif 22042d5e09d6SMatthias Ringwald 22052d5e09d6SMatthias Ringwald void hci_init(const hci_transport_t *transport, const void *config){ 2206475c8125Smatthias.ringwald 22073a9fb326S[email protected] #ifdef HAVE_MALLOC 22083a9fb326S[email protected] if (!hci_stack) { 22093a9fb326S[email protected] hci_stack = (hci_stack_t*) malloc(sizeof(hci_stack_t)); 22103a9fb326S[email protected] } 22113a9fb326S[email protected] #else 22123a9fb326S[email protected] hci_stack = &hci_stack_static; 22133a9fb326S[email protected] #endif 221466fb9560S[email protected] memset(hci_stack, 0, sizeof(hci_stack_t)); 22153a9fb326S[email protected] 2216475c8125Smatthias.ringwald // reference to use transport layer implementation 22173a9fb326S[email protected] hci_stack->hci_transport = transport; 2218475c8125Smatthias.ringwald 221911e23e5fSmatthias.ringwald // reference to used config 22203a9fb326S[email protected] hci_stack->config = config; 222111e23e5fSmatthias.ringwald 222226a9b6daSMatthias Ringwald // setup pointer for outgoing packet buffer 222326a9b6daSMatthias Ringwald hci_stack->hci_packet_buffer = &hci_stack->hci_packet_buffer_data[HCI_OUTGOING_PRE_BUFFER_SIZE]; 222426a9b6daSMatthias Ringwald 22258fcba05dSmatthias.ringwald // max acl payload size defined in config.h 22263a9fb326S[email protected] hci_stack->acl_data_packet_length = HCI_ACL_PAYLOAD_SIZE; 22278fcba05dSmatthias.ringwald 222816833f0aSmatthias.ringwald // register packet handlers with transport 222910e830c9Smatthias.ringwald transport->register_packet_handler(&packet_handler); 2230f5454fc6Smatthias.ringwald 22313a9fb326S[email protected] hci_stack->state = HCI_STATE_OFF; 2232e2386ba1S[email protected] 2233e2386ba1S[email protected] // class of device 22343a9fb326S[email protected] hci_stack->class_of_device = 0x007a020c; // Smartphone 2235a45d6b9fS[email protected] 2236f20168b8Smatthias.ringwald // bondable by default 2237f20168b8Smatthias.ringwald hci_stack->bondable = 1; 2238f20168b8Smatthias.ringwald 223963048403S[email protected] // Secure Simple Pairing default: enable, no I/O capabilities, general bonding, mitm not required, auto accept 22403a9fb326S[email protected] hci_stack->ssp_enable = 1; 22413a9fb326S[email protected] hci_stack->ssp_io_capability = SSP_IO_CAPABILITY_NO_INPUT_NO_OUTPUT; 22423a9fb326S[email protected] hci_stack->ssp_authentication_requirement = SSP_IO_AUTHREQ_MITM_PROTECTION_NOT_REQUIRED_GENERAL_BONDING; 22433a9fb326S[email protected] hci_stack->ssp_auto_accept = 1; 224469a97523S[email protected] 2245fac2e2feSMatthias Ringwald // voice setting - signed 16 bit pcm data with CVSD over the air 2246fac2e2feSMatthias Ringwald hci_stack->sco_voice_setting = 0x60; 2247d950d659SMatthias Ringwald 2248595bdbfbS[email protected] hci_state_reset(); 2249475c8125Smatthias.ringwald } 2250475c8125Smatthias.ringwald 22513fb36a29SMatthias Ringwald /** 22523fb36a29SMatthias Ringwald * @brief Configure Bluetooth chipset driver. Has to be called before power on, or right after receiving the local version information 22533fb36a29SMatthias Ringwald */ 22543fb36a29SMatthias Ringwald void hci_set_chipset(const btstack_chipset_t *chipset_driver){ 22553fb36a29SMatthias Ringwald hci_stack->chipset = chipset_driver; 22563fb36a29SMatthias Ringwald 22573fb36a29SMatthias Ringwald // reset chipset driver - init is also called on power_up 22583fb36a29SMatthias Ringwald if (hci_stack->chipset && hci_stack->chipset->init){ 22593fb36a29SMatthias Ringwald hci_stack->chipset->init(hci_stack->config); 22603fb36a29SMatthias Ringwald } 22613fb36a29SMatthias Ringwald } 22623fb36a29SMatthias Ringwald 2263fb55bd0aSMatthias Ringwald /** 2264d0b87befSMatthias Ringwald * @brief Configure Bluetooth hardware control. Has to be called after hci_init() but before power on. 2265fb55bd0aSMatthias Ringwald */ 2266fb55bd0aSMatthias Ringwald void hci_set_control(const btstack_control_t *hardware_control){ 2267fb55bd0aSMatthias Ringwald // references to used control implementation 2268fb55bd0aSMatthias Ringwald hci_stack->control = hardware_control; 2269d0b87befSMatthias Ringwald // init with transport config 2270d0b87befSMatthias Ringwald hardware_control->init(hci_stack->config); 2271fb55bd0aSMatthias Ringwald } 2272fb55bd0aSMatthias Ringwald 227371de195eSMatthias Ringwald void hci_close(void){ 2274404843c1Smatthias.ringwald // close remote device db 2275a98592bcSMatthias Ringwald if (hci_stack->link_key_db) { 2276a98592bcSMatthias Ringwald hci_stack->link_key_db->close(); 2277404843c1Smatthias.ringwald } 22787224be7eSMatthias Ringwald 22797224be7eSMatthias Ringwald btstack_linked_list_iterator_t lit; 22807224be7eSMatthias Ringwald btstack_linked_list_iterator_init(&lit, &hci_stack->connections); 22817224be7eSMatthias Ringwald while (btstack_linked_list_iterator_has_next(&lit)){ 22827224be7eSMatthias Ringwald // cancel all l2cap connections by emitting dicsconnection complete before shutdown (free) connection 22837224be7eSMatthias Ringwald hci_connection_t * connection = (hci_connection_t*) btstack_linked_list_iterator_next(&lit); 22847224be7eSMatthias Ringwald hci_emit_disconnection_complete(connection->con_handle, 0x16); // terminated by local host 22857224be7eSMatthias Ringwald hci_shutdown_connection(connection); 2286f5454fc6Smatthias.ringwald } 22877224be7eSMatthias Ringwald 2288f5454fc6Smatthias.ringwald hci_power_control(HCI_POWER_OFF); 22893a9fb326S[email protected] 22903a9fb326S[email protected] #ifdef HAVE_MALLOC 22913a9fb326S[email protected] free(hci_stack); 22923a9fb326S[email protected] #endif 22933a9fb326S[email protected] hci_stack = NULL; 2294404843c1Smatthias.ringwald } 2295404843c1Smatthias.ringwald 229635454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 229760b9e82fSMatthias Ringwald void gap_set_class_of_device(uint32_t class_of_device){ 22989e61646fS[email protected] hci_stack->class_of_device = class_of_device; 22999e61646fS[email protected] } 230076f27cffSMatthias Ringwald 230176f27cffSMatthias Ringwald void hci_disable_l2cap_timeout_check(void){ 230276f27cffSMatthias Ringwald disable_l2cap_timeouts = 1; 230376f27cffSMatthias Ringwald } 230435454696SMatthias Ringwald #endif 23059e61646fS[email protected] 230676f27cffSMatthias Ringwald #if !defined(HAVE_PLATFORM_IPHONE_OS) && !defined (HAVE_HOST_CONTROLLER_API) 2307f456b2d0S[email protected] // Set Public BD ADDR - passed on to Bluetooth chipset if supported in bt_control_h 2308f456b2d0S[email protected] void hci_set_bd_addr(bd_addr_t addr){ 2309f456b2d0S[email protected] memcpy(hci_stack->custom_bd_addr, addr, 6); 2310f456b2d0S[email protected] hci_stack->custom_bd_addr_set = 1; 2311f456b2d0S[email protected] } 231276f27cffSMatthias Ringwald #endif 2313f456b2d0S[email protected] 23148d213e1aSmatthias.ringwald // State-Module-Driver overview 23158d213e1aSmatthias.ringwald // state module low-level 23168d213e1aSmatthias.ringwald // HCI_STATE_OFF off close 23178d213e1aSmatthias.ringwald // HCI_STATE_INITIALIZING, on open 23188d213e1aSmatthias.ringwald // HCI_STATE_WORKING, on open 23198d213e1aSmatthias.ringwald // HCI_STATE_HALTING, on open 2320d661ed19Smatthias.ringwald // HCI_STATE_SLEEPING, off/sleep close 2321d661ed19Smatthias.ringwald // HCI_STATE_FALLING_ASLEEP on open 2322c7e0c5f6Smatthias.ringwald 232340d1c7a4Smatthias.ringwald static int hci_power_control_on(void){ 23247301ad89Smatthias.ringwald 2325038bc64cSmatthias.ringwald // power on 2326f9a30166Smatthias.ringwald int err = 0; 23273a9fb326S[email protected] if (hci_stack->control && hci_stack->control->on){ 2328d0b87befSMatthias Ringwald err = (*hci_stack->control->on)(); 2329f9a30166Smatthias.ringwald } 2330038bc64cSmatthias.ringwald if (err){ 23319da54300S[email protected] log_error( "POWER_ON failed"); 2332038bc64cSmatthias.ringwald hci_emit_hci_open_failed(); 2333038bc64cSmatthias.ringwald return err; 2334038bc64cSmatthias.ringwald } 2335038bc64cSmatthias.ringwald 233624b3c629SMatthias Ringwald // int chipset driver 23373fb36a29SMatthias Ringwald if (hci_stack->chipset && hci_stack->chipset->init){ 23383fb36a29SMatthias Ringwald hci_stack->chipset->init(hci_stack->config); 23393fb36a29SMatthias Ringwald } 23403fb36a29SMatthias Ringwald 234124b3c629SMatthias Ringwald // init transport 234224b3c629SMatthias Ringwald if (hci_stack->hci_transport->init){ 234324b3c629SMatthias Ringwald hci_stack->hci_transport->init(hci_stack->config); 234424b3c629SMatthias Ringwald } 234524b3c629SMatthias Ringwald 234624b3c629SMatthias Ringwald // open transport 234724b3c629SMatthias Ringwald err = hci_stack->hci_transport->open(); 2348038bc64cSmatthias.ringwald if (err){ 23499da54300S[email protected] log_error( "HCI_INIT failed, turning Bluetooth off again"); 23503a9fb326S[email protected] if (hci_stack->control && hci_stack->control->off){ 2351d0b87befSMatthias Ringwald (*hci_stack->control->off)(); 2352f9a30166Smatthias.ringwald } 2353038bc64cSmatthias.ringwald hci_emit_hci_open_failed(); 2354038bc64cSmatthias.ringwald return err; 2355038bc64cSmatthias.ringwald } 23568d213e1aSmatthias.ringwald return 0; 23578d213e1aSmatthias.ringwald } 2358038bc64cSmatthias.ringwald 235940d1c7a4Smatthias.ringwald static void hci_power_control_off(void){ 23608d213e1aSmatthias.ringwald 23619da54300S[email protected] log_info("hci_power_control_off"); 23629418f9c9Smatthias.ringwald 23638d213e1aSmatthias.ringwald // close low-level device 236424b3c629SMatthias Ringwald hci_stack->hci_transport->close(); 23658d213e1aSmatthias.ringwald 23669da54300S[email protected] log_info("hci_power_control_off - hci_transport closed"); 23679418f9c9Smatthias.ringwald 23688d213e1aSmatthias.ringwald // power off 23693a9fb326S[email protected] if (hci_stack->control && hci_stack->control->off){ 2370d0b87befSMatthias Ringwald (*hci_stack->control->off)(); 23718d213e1aSmatthias.ringwald } 23729418f9c9Smatthias.ringwald 23739da54300S[email protected] log_info("hci_power_control_off - control closed"); 23749418f9c9Smatthias.ringwald 23753a9fb326S[email protected] hci_stack->state = HCI_STATE_OFF; 237672ea5239Smatthias.ringwald } 237772ea5239Smatthias.ringwald 237840d1c7a4Smatthias.ringwald static void hci_power_control_sleep(void){ 237972ea5239Smatthias.ringwald 23809da54300S[email protected] log_info("hci_power_control_sleep"); 23813144bce4Smatthias.ringwald 2382b429b9b7Smatthias.ringwald #if 0 2383b429b9b7Smatthias.ringwald // don't close serial port during sleep 2384b429b9b7Smatthias.ringwald 238572ea5239Smatthias.ringwald // close low-level device 23863a9fb326S[email protected] hci_stack->hci_transport->close(hci_stack->config); 2387b429b9b7Smatthias.ringwald #endif 238872ea5239Smatthias.ringwald 238972ea5239Smatthias.ringwald // sleep mode 23903a9fb326S[email protected] if (hci_stack->control && hci_stack->control->sleep){ 2391d0b87befSMatthias Ringwald (*hci_stack->control->sleep)(); 239272ea5239Smatthias.ringwald } 2393b429b9b7Smatthias.ringwald 23943a9fb326S[email protected] hci_stack->state = HCI_STATE_SLEEPING; 23958d213e1aSmatthias.ringwald } 23968d213e1aSmatthias.ringwald 239740d1c7a4Smatthias.ringwald static int hci_power_control_wake(void){ 2398b429b9b7Smatthias.ringwald 23999da54300S[email protected] log_info("hci_power_control_wake"); 2400b429b9b7Smatthias.ringwald 2401b429b9b7Smatthias.ringwald // wake on 24023a9fb326S[email protected] if (hci_stack->control && hci_stack->control->wake){ 2403d0b87befSMatthias Ringwald (*hci_stack->control->wake)(); 2404b429b9b7Smatthias.ringwald } 2405b429b9b7Smatthias.ringwald 2406b429b9b7Smatthias.ringwald #if 0 2407b429b9b7Smatthias.ringwald // open low-level device 24083a9fb326S[email protected] int err = hci_stack->hci_transport->open(hci_stack->config); 2409b429b9b7Smatthias.ringwald if (err){ 24109da54300S[email protected] log_error( "HCI_INIT failed, turning Bluetooth off again"); 24113a9fb326S[email protected] if (hci_stack->control && hci_stack->control->off){ 2412d0b87befSMatthias Ringwald (*hci_stack->control->off)(); 2413b429b9b7Smatthias.ringwald } 2414b429b9b7Smatthias.ringwald hci_emit_hci_open_failed(); 2415b429b9b7Smatthias.ringwald return err; 2416b429b9b7Smatthias.ringwald } 2417b429b9b7Smatthias.ringwald #endif 2418b429b9b7Smatthias.ringwald 2419b429b9b7Smatthias.ringwald return 0; 2420b429b9b7Smatthias.ringwald } 2421b429b9b7Smatthias.ringwald 242244935e40S[email protected] static void hci_power_transition_to_initializing(void){ 242344935e40S[email protected] // set up state machine 242444935e40S[email protected] hci_stack->num_cmd_packets = 1; // assume that one cmd can be sent 242544935e40S[email protected] hci_stack->hci_packet_buffer_reserved = 0; 242644935e40S[email protected] hci_stack->state = HCI_STATE_INITIALIZING; 24275c363727SMatthias Ringwald hci_stack->substate = HCI_INIT_SEND_RESET; 242844935e40S[email protected] } 2429b429b9b7Smatthias.ringwald 24308d213e1aSmatthias.ringwald int hci_power_control(HCI_POWER_MODE power_mode){ 2431d661ed19Smatthias.ringwald 2432f04a0c31SMatthias Ringwald log_info("hci_power_control: %d, current mode %u", power_mode, hci_stack->state); 2433d661ed19Smatthias.ringwald 24348d213e1aSmatthias.ringwald int err = 0; 24353a9fb326S[email protected] switch (hci_stack->state){ 24368d213e1aSmatthias.ringwald 24378d213e1aSmatthias.ringwald case HCI_STATE_OFF: 24388d213e1aSmatthias.ringwald switch (power_mode){ 24398d213e1aSmatthias.ringwald case HCI_POWER_ON: 24408d213e1aSmatthias.ringwald err = hci_power_control_on(); 244197b61c7bS[email protected] if (err) { 2442f04a0c31SMatthias Ringwald log_error("hci_power_control_on() error %d", err); 244397b61c7bS[email protected] return err; 244497b61c7bS[email protected] } 244544935e40S[email protected] hci_power_transition_to_initializing(); 24468d213e1aSmatthias.ringwald break; 24478d213e1aSmatthias.ringwald case HCI_POWER_OFF: 24488d213e1aSmatthias.ringwald // do nothing 24498d213e1aSmatthias.ringwald break; 24508d213e1aSmatthias.ringwald case HCI_POWER_SLEEP: 2451b546ac54Smatthias.ringwald // do nothing (with SLEEP == OFF) 24528d213e1aSmatthias.ringwald break; 24538d213e1aSmatthias.ringwald } 24548d213e1aSmatthias.ringwald break; 24557301ad89Smatthias.ringwald 24568d213e1aSmatthias.ringwald case HCI_STATE_INITIALIZING: 24578d213e1aSmatthias.ringwald switch (power_mode){ 24588d213e1aSmatthias.ringwald case HCI_POWER_ON: 24598d213e1aSmatthias.ringwald // do nothing 24608d213e1aSmatthias.ringwald break; 24618d213e1aSmatthias.ringwald case HCI_POWER_OFF: 24628d213e1aSmatthias.ringwald // no connections yet, just turn it off 24638d213e1aSmatthias.ringwald hci_power_control_off(); 24648d213e1aSmatthias.ringwald break; 24658d213e1aSmatthias.ringwald case HCI_POWER_SLEEP: 2466b546ac54Smatthias.ringwald // no connections yet, just turn it off 246772ea5239Smatthias.ringwald hci_power_control_sleep(); 24688d213e1aSmatthias.ringwald break; 24698d213e1aSmatthias.ringwald } 24708d213e1aSmatthias.ringwald break; 24717301ad89Smatthias.ringwald 24728d213e1aSmatthias.ringwald case HCI_STATE_WORKING: 24738d213e1aSmatthias.ringwald switch (power_mode){ 24748d213e1aSmatthias.ringwald case HCI_POWER_ON: 24758d213e1aSmatthias.ringwald // do nothing 24768d213e1aSmatthias.ringwald break; 24778d213e1aSmatthias.ringwald case HCI_POWER_OFF: 2478c7e0c5f6Smatthias.ringwald // see hci_run 24793a9fb326S[email protected] hci_stack->state = HCI_STATE_HALTING; 24808d213e1aSmatthias.ringwald break; 24818d213e1aSmatthias.ringwald case HCI_POWER_SLEEP: 2482b546ac54Smatthias.ringwald // see hci_run 24833a9fb326S[email protected] hci_stack->state = HCI_STATE_FALLING_ASLEEP; 248474b323a9SMatthias Ringwald hci_stack->substate = HCI_FALLING_ASLEEP_DISCONNECT; 24858d213e1aSmatthias.ringwald break; 24868d213e1aSmatthias.ringwald } 24878d213e1aSmatthias.ringwald break; 24887301ad89Smatthias.ringwald 24898d213e1aSmatthias.ringwald case HCI_STATE_HALTING: 24908d213e1aSmatthias.ringwald switch (power_mode){ 24918d213e1aSmatthias.ringwald case HCI_POWER_ON: 249244935e40S[email protected] hci_power_transition_to_initializing(); 24938d213e1aSmatthias.ringwald break; 24948d213e1aSmatthias.ringwald case HCI_POWER_OFF: 24958d213e1aSmatthias.ringwald // do nothing 24968d213e1aSmatthias.ringwald break; 24978d213e1aSmatthias.ringwald case HCI_POWER_SLEEP: 2498b546ac54Smatthias.ringwald // see hci_run 24993a9fb326S[email protected] hci_stack->state = HCI_STATE_FALLING_ASLEEP; 250074b323a9SMatthias Ringwald hci_stack->substate = HCI_FALLING_ASLEEP_DISCONNECT; 25018d213e1aSmatthias.ringwald break; 25028d213e1aSmatthias.ringwald } 25038d213e1aSmatthias.ringwald break; 25048d213e1aSmatthias.ringwald 25058d213e1aSmatthias.ringwald case HCI_STATE_FALLING_ASLEEP: 25068d213e1aSmatthias.ringwald switch (power_mode){ 25078d213e1aSmatthias.ringwald case HCI_POWER_ON: 250828171530Smatthias.ringwald 2509423a3e49SMatthias Ringwald #ifdef HAVE_PLATFORM_IPHONE_OS 251028171530Smatthias.ringwald // nothing to do, if H4 supports power management 2511d0b87befSMatthias Ringwald if (btstack_control_iphone_power_management_enabled()){ 25123a9fb326S[email protected] hci_stack->state = HCI_STATE_INITIALIZING; 251374b323a9SMatthias Ringwald hci_stack->substate = HCI_INIT_WRITE_SCAN_ENABLE; // init after sleep 251428171530Smatthias.ringwald break; 251528171530Smatthias.ringwald } 251628171530Smatthias.ringwald #endif 251744935e40S[email protected] hci_power_transition_to_initializing(); 25188d213e1aSmatthias.ringwald break; 25198d213e1aSmatthias.ringwald case HCI_POWER_OFF: 2520b546ac54Smatthias.ringwald // see hci_run 25213a9fb326S[email protected] hci_stack->state = HCI_STATE_HALTING; 25228d213e1aSmatthias.ringwald break; 25238d213e1aSmatthias.ringwald case HCI_POWER_SLEEP: 2524b546ac54Smatthias.ringwald // do nothing 25258d213e1aSmatthias.ringwald break; 25268d213e1aSmatthias.ringwald } 25278d213e1aSmatthias.ringwald break; 25288d213e1aSmatthias.ringwald 25298d213e1aSmatthias.ringwald case HCI_STATE_SLEEPING: 25308d213e1aSmatthias.ringwald switch (power_mode){ 25318d213e1aSmatthias.ringwald case HCI_POWER_ON: 253228171530Smatthias.ringwald 2533423a3e49SMatthias Ringwald #ifdef HAVE_PLATFORM_IPHONE_OS 253428171530Smatthias.ringwald // nothing to do, if H4 supports power management 2535d0b87befSMatthias Ringwald if (btstack_control_iphone_power_management_enabled()){ 25363a9fb326S[email protected] hci_stack->state = HCI_STATE_INITIALIZING; 25375c363727SMatthias Ringwald hci_stack->substate = HCI_INIT_AFTER_SLEEP; 2538758b46ceSmatthias.ringwald hci_update_scan_enable(); 253928171530Smatthias.ringwald break; 254028171530Smatthias.ringwald } 254128171530Smatthias.ringwald #endif 25423144bce4Smatthias.ringwald err = hci_power_control_wake(); 25433144bce4Smatthias.ringwald if (err) return err; 254444935e40S[email protected] hci_power_transition_to_initializing(); 25458d213e1aSmatthias.ringwald break; 25468d213e1aSmatthias.ringwald case HCI_POWER_OFF: 25473a9fb326S[email protected] hci_stack->state = HCI_STATE_HALTING; 25488d213e1aSmatthias.ringwald break; 25498d213e1aSmatthias.ringwald case HCI_POWER_SLEEP: 2550b546ac54Smatthias.ringwald // do nothing 25518d213e1aSmatthias.ringwald break; 25528d213e1aSmatthias.ringwald } 25538d213e1aSmatthias.ringwald break; 255411e23e5fSmatthias.ringwald } 255568d92d03Smatthias.ringwald 2556038bc64cSmatthias.ringwald // create internal event 2557ee8bf225Smatthias.ringwald hci_emit_state(); 2558ee8bf225Smatthias.ringwald 255968d92d03Smatthias.ringwald // trigger next/first action 256068d92d03Smatthias.ringwald hci_run(); 256168d92d03Smatthias.ringwald 2562475c8125Smatthias.ringwald return 0; 2563475c8125Smatthias.ringwald } 2564475c8125Smatthias.ringwald 256535454696SMatthias Ringwald 256635454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 256735454696SMatthias Ringwald 2568758b46ceSmatthias.ringwald static void hci_update_scan_enable(void){ 2569758b46ceSmatthias.ringwald // 2 = page scan, 1 = inq scan 25703a9fb326S[email protected] hci_stack->new_scan_enable_value = hci_stack->connectable << 1 | hci_stack->discoverable; 2571758b46ceSmatthias.ringwald hci_run(); 2572758b46ceSmatthias.ringwald } 2573758b46ceSmatthias.ringwald 257415a95bd5SMatthias Ringwald void gap_discoverable_control(uint8_t enable){ 2575381fbed8Smatthias.ringwald if (enable) enable = 1; // normalize argument 2576381fbed8Smatthias.ringwald 25773a9fb326S[email protected] if (hci_stack->discoverable == enable){ 25783a9fb326S[email protected] hci_emit_discoverable_enabled(hci_stack->discoverable); 2579381fbed8Smatthias.ringwald return; 2580381fbed8Smatthias.ringwald } 2581381fbed8Smatthias.ringwald 25823a9fb326S[email protected] hci_stack->discoverable = enable; 2583758b46ceSmatthias.ringwald hci_update_scan_enable(); 2584758b46ceSmatthias.ringwald } 2585b031bebbSmatthias.ringwald 258615a95bd5SMatthias Ringwald void gap_connectable_control(uint8_t enable){ 2587758b46ceSmatthias.ringwald if (enable) enable = 1; // normalize argument 2588758b46ceSmatthias.ringwald 2589758b46ceSmatthias.ringwald // don't emit event 25903a9fb326S[email protected] if (hci_stack->connectable == enable) return; 2591758b46ceSmatthias.ringwald 25923a9fb326S[email protected] hci_stack->connectable = enable; 2593758b46ceSmatthias.ringwald hci_update_scan_enable(); 2594381fbed8Smatthias.ringwald } 259535454696SMatthias Ringwald #endif 2596381fbed8Smatthias.ringwald 259715a95bd5SMatthias Ringwald void gap_local_bd_addr(bd_addr_t address_buffer){ 2598690bd0baS[email protected] memcpy(address_buffer, hci_stack->local_bd_addr, 6); 25995061f3afS[email protected] } 26005061f3afS[email protected] 260195d71764SMatthias Ringwald static void hci_run(void){ 26028a485f27Smatthias.ringwald 2603db8bc6ffSMatthias Ringwald // log_info("hci_run: entered"); 2604665d90f2SMatthias Ringwald btstack_linked_item_t * it; 260532ab9390Smatthias.ringwald 2606b5d8b22bS[email protected] // send continuation fragments first, as they block the prepared packet buffer 2607b5d8b22bS[email protected] if (hci_stack->acl_fragmentation_total_size > 0) { 2608b5d8b22bS[email protected] hci_con_handle_t con_handle = READ_ACL_CONNECTION_HANDLE(hci_stack->hci_packet_buffer); 2609b5d8b22bS[email protected] hci_connection_t *connection = hci_connection_for_handle(con_handle); 2610b5d8b22bS[email protected] if (connection) { 261128a0332dSMatthias Ringwald if (hci_can_send_prepared_acl_packet_now(con_handle)){ 2612b5d8b22bS[email protected] hci_send_acl_packet_fragments(connection); 2613b5d8b22bS[email protected] return; 2614b5d8b22bS[email protected] } 261528a0332dSMatthias Ringwald } else { 2616b5d8b22bS[email protected] // connection gone -> discard further fragments 261728a0332dSMatthias Ringwald log_info("hci_run: fragmented ACL packet no connection -> discard fragment"); 2618b5d8b22bS[email protected] hci_stack->acl_fragmentation_total_size = 0; 2619b5d8b22bS[email protected] hci_stack->acl_fragmentation_pos = 0; 2620b5d8b22bS[email protected] } 2621b5d8b22bS[email protected] } 2622b5d8b22bS[email protected] 2623d94d3cafS[email protected] if (!hci_can_send_command_packet_now()) return; 2624ce4c8fabSmatthias.ringwald 2625b031bebbSmatthias.ringwald // global/non-connection oriented commands 2626b031bebbSmatthias.ringwald 262735454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 2628b031bebbSmatthias.ringwald // decline incoming connections 26293a9fb326S[email protected] if (hci_stack->decline_reason){ 26303a9fb326S[email protected] uint8_t reason = hci_stack->decline_reason; 26313a9fb326S[email protected] hci_stack->decline_reason = 0; 26323a9fb326S[email protected] hci_send_cmd(&hci_reject_connection_request, hci_stack->decline_addr, reason); 2633dbe1a790S[email protected] return; 2634ce4c8fabSmatthias.ringwald } 2635ce4c8fabSmatthias.ringwald 2636b031bebbSmatthias.ringwald // send scan enable 26373a9fb326S[email protected] if (hci_stack->state == HCI_STATE_WORKING && hci_stack->new_scan_enable_value != 0xff && hci_classic_supported()){ 26383a9fb326S[email protected] hci_send_cmd(&hci_write_scan_enable, hci_stack->new_scan_enable_value); 26393a9fb326S[email protected] hci_stack->new_scan_enable_value = 0xff; 2640dbe1a790S[email protected] return; 2641b031bebbSmatthias.ringwald } 264235454696SMatthias Ringwald #endif 2643b031bebbSmatthias.ringwald 2644a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 2645b95a5a35SMatthias Ringwald // advertisements, active scanning, and creating connections requires randaom address to be set if using private address 2646b95a5a35SMatthias Ringwald if ((hci_stack->state == HCI_STATE_WORKING) 2647b95a5a35SMatthias Ringwald && (hci_stack->le_own_addr_type == BD_ADDR_TYPE_LE_PUBLIC || hci_stack->le_random_address_set)){ 2648d70217a2SMatthias Ringwald 2649d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 265045c102fdSMatthias Ringwald // handle le scan 26517bdc6798S[email protected] switch(hci_stack->le_scanning_state){ 26527bdc6798S[email protected] case LE_START_SCAN: 26537bdc6798S[email protected] hci_stack->le_scanning_state = LE_SCANNING; 26547bdc6798S[email protected] hci_send_cmd(&hci_le_set_scan_enable, 1, 0); 26557bdc6798S[email protected] return; 26567bdc6798S[email protected] 26577bdc6798S[email protected] case LE_STOP_SCAN: 26587bdc6798S[email protected] hci_stack->le_scanning_state = LE_SCAN_IDLE; 26597bdc6798S[email protected] hci_send_cmd(&hci_le_set_scan_enable, 0, 0); 26607bdc6798S[email protected] return; 26617bdc6798S[email protected] default: 26627bdc6798S[email protected] break; 26637bdc6798S[email protected] } 2664e2602ea2Smatthias.ringwald if (hci_stack->le_scan_type != 0xff){ 2665e2602ea2Smatthias.ringwald // defaults: active scanning, accept all advertisement packets 2666e2602ea2Smatthias.ringwald int scan_type = hci_stack->le_scan_type; 2667e2602ea2Smatthias.ringwald hci_stack->le_scan_type = 0xff; 2668b95a5a35SMatthias Ringwald hci_send_cmd(&hci_le_set_scan_parameters, scan_type, hci_stack->le_scan_interval, hci_stack->le_scan_window, hci_stack->le_own_addr_type, 0); 2669e2602ea2Smatthias.ringwald return; 2670e2602ea2Smatthias.ringwald } 2671d70217a2SMatthias Ringwald #endif 2672d70217a2SMatthias Ringwald #ifdef ENABLE_LE_PERIPHERAL 267345c102fdSMatthias Ringwald // le advertisement control 26749a2e4658SMatthias Ringwald if (hci_stack->le_advertisements_todo){ 26759a2e4658SMatthias Ringwald log_info("hci_run: gap_le: adv todo: %x", hci_stack->le_advertisements_todo ); 26769a2e4658SMatthias Ringwald } 267745c102fdSMatthias Ringwald if (hci_stack->le_advertisements_todo & LE_ADVERTISEMENT_TASKS_DISABLE){ 267845c102fdSMatthias Ringwald hci_stack->le_advertisements_todo &= ~LE_ADVERTISEMENT_TASKS_DISABLE; 267945c102fdSMatthias Ringwald hci_send_cmd(&hci_le_set_advertise_enable, 0); 268045c102fdSMatthias Ringwald return; 268145c102fdSMatthias Ringwald } 268245c102fdSMatthias Ringwald if (hci_stack->le_advertisements_todo & LE_ADVERTISEMENT_TASKS_SET_PARAMS){ 268345c102fdSMatthias Ringwald hci_stack->le_advertisements_todo &= ~LE_ADVERTISEMENT_TASKS_SET_PARAMS; 268445c102fdSMatthias Ringwald hci_send_cmd(&hci_le_set_advertising_parameters, 268545c102fdSMatthias Ringwald hci_stack->le_advertisements_interval_min, 268645c102fdSMatthias Ringwald hci_stack->le_advertisements_interval_max, 268745c102fdSMatthias Ringwald hci_stack->le_advertisements_type, 2688b95a5a35SMatthias Ringwald hci_stack->le_own_addr_type, 268945c102fdSMatthias Ringwald hci_stack->le_advertisements_direct_address_type, 269045c102fdSMatthias Ringwald hci_stack->le_advertisements_direct_address, 269145c102fdSMatthias Ringwald hci_stack->le_advertisements_channel_map, 269245c102fdSMatthias Ringwald hci_stack->le_advertisements_filter_policy); 269345c102fdSMatthias Ringwald return; 269445c102fdSMatthias Ringwald } 2695501f56b3SMatthias Ringwald if (hci_stack->le_advertisements_todo & LE_ADVERTISEMENT_TASKS_SET_ADV_DATA){ 2696501f56b3SMatthias Ringwald hci_stack->le_advertisements_todo &= ~LE_ADVERTISEMENT_TASKS_SET_ADV_DATA; 2697b95a5a35SMatthias Ringwald hci_send_cmd(&hci_le_set_advertising_data, hci_stack->le_advertisements_data_len, hci_stack->le_advertisements_data); 269845c102fdSMatthias Ringwald return; 269945c102fdSMatthias Ringwald } 2700501f56b3SMatthias Ringwald if (hci_stack->le_advertisements_todo & LE_ADVERTISEMENT_TASKS_SET_SCAN_DATA){ 2701501f56b3SMatthias Ringwald hci_stack->le_advertisements_todo &= ~LE_ADVERTISEMENT_TASKS_SET_SCAN_DATA; 2702501f56b3SMatthias Ringwald hci_send_cmd(&hci_le_set_scan_response_data, hci_stack->le_scan_response_data_len, 2703501f56b3SMatthias Ringwald hci_stack->le_scan_response_data); 2704501f56b3SMatthias Ringwald return; 2705501f56b3SMatthias Ringwald } 2706b95a5a35SMatthias Ringwald if (hci_stack->le_advertisements_todo & LE_ADVERTISEMENT_TASKS_ENABLE){ 270745c102fdSMatthias Ringwald hci_stack->le_advertisements_todo &= ~LE_ADVERTISEMENT_TASKS_ENABLE; 270845c102fdSMatthias Ringwald hci_send_cmd(&hci_le_set_advertise_enable, 1); 270945c102fdSMatthias Ringwald return; 271045c102fdSMatthias Ringwald } 2711d70217a2SMatthias Ringwald #endif 27129956955bSMatthias Ringwald 2713d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 27149956955bSMatthias Ringwald // 27159956955bSMatthias Ringwald // LE Whitelist Management 27169956955bSMatthias Ringwald // 27179956955bSMatthias Ringwald 27189956955bSMatthias Ringwald // check if whitelist needs modification 2719665d90f2SMatthias Ringwald btstack_linked_list_iterator_t lit; 27209956955bSMatthias Ringwald int modification_pending = 0; 2721665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(&lit, &hci_stack->le_whitelist); 2722665d90f2SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&lit)){ 2723665d90f2SMatthias Ringwald whitelist_entry_t * entry = (whitelist_entry_t*) btstack_linked_list_iterator_next(&lit); 27249956955bSMatthias Ringwald if (entry->state & (LE_WHITELIST_REMOVE_FROM_CONTROLLER | LE_WHITELIST_ADD_TO_CONTROLLER)){ 27259956955bSMatthias Ringwald modification_pending = 1; 27269956955bSMatthias Ringwald break; 27279956955bSMatthias Ringwald } 27289956955bSMatthias Ringwald } 272991915b0bSMatthias Ringwald 27309956955bSMatthias Ringwald if (modification_pending){ 273191915b0bSMatthias Ringwald // stop connnecting if modification pending 27329956955bSMatthias Ringwald if (hci_stack->le_connecting_state != LE_CONNECTING_IDLE){ 27339956955bSMatthias Ringwald hci_send_cmd(&hci_le_create_connection_cancel); 27349956955bSMatthias Ringwald return; 27359956955bSMatthias Ringwald } 27369956955bSMatthias Ringwald 27379956955bSMatthias Ringwald // add/remove entries 2738665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(&lit, &hci_stack->le_whitelist); 2739665d90f2SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&lit)){ 2740665d90f2SMatthias Ringwald whitelist_entry_t * entry = (whitelist_entry_t*) btstack_linked_list_iterator_next(&lit); 27419956955bSMatthias Ringwald if (entry->state & LE_WHITELIST_ADD_TO_CONTROLLER){ 27429956955bSMatthias Ringwald entry->state = LE_WHITELIST_ON_CONTROLLER; 27439956955bSMatthias Ringwald hci_send_cmd(&hci_le_add_device_to_white_list, entry->address_type, entry->address); 27449956955bSMatthias Ringwald return; 27459956955bSMatthias Ringwald 27469956955bSMatthias Ringwald } 27479956955bSMatthias Ringwald if (entry->state & LE_WHITELIST_REMOVE_FROM_CONTROLLER){ 27489ecbe201SMatthias Ringwald bd_addr_t address; 27499ecbe201SMatthias Ringwald bd_addr_type_t address_type = entry->address_type; 27509ecbe201SMatthias Ringwald memcpy(address, entry->address, 6); 2751665d90f2SMatthias Ringwald btstack_linked_list_remove(&hci_stack->le_whitelist, (btstack_linked_item_t *) entry); 27529956955bSMatthias Ringwald btstack_memory_whitelist_entry_free(entry); 27539ecbe201SMatthias Ringwald hci_send_cmd(&hci_le_remove_device_from_white_list, address_type, address); 27549956955bSMatthias Ringwald return; 27559956955bSMatthias Ringwald } 27569956955bSMatthias Ringwald } 275791915b0bSMatthias Ringwald } 27589956955bSMatthias Ringwald 27599956955bSMatthias Ringwald // start connecting 276091915b0bSMatthias Ringwald if ( hci_stack->le_connecting_state == LE_CONNECTING_IDLE && 2761665d90f2SMatthias Ringwald !btstack_linked_list_empty(&hci_stack->le_whitelist)){ 27629956955bSMatthias Ringwald bd_addr_t null_addr; 27639956955bSMatthias Ringwald memset(null_addr, 0, 6); 27649956955bSMatthias Ringwald hci_send_cmd(&hci_le_create_connection, 27659956955bSMatthias Ringwald 0x0060, // scan interval: 60 ms 27669956955bSMatthias Ringwald 0x0030, // scan interval: 30 ms 27679956955bSMatthias Ringwald 1, // use whitelist 27689956955bSMatthias Ringwald 0, // peer address type 27699956955bSMatthias Ringwald null_addr, // peer bd addr 2770b95a5a35SMatthias Ringwald hci_stack->le_own_addr_type, // our addr type: 27719956955bSMatthias Ringwald 0x0008, // conn interval min 27729956955bSMatthias Ringwald 0x0018, // conn interval max 27739956955bSMatthias Ringwald 0, // conn latency 27749956955bSMatthias Ringwald 0x0048, // supervision timeout 27759956955bSMatthias Ringwald 0x0001, // min ce length 27769956955bSMatthias Ringwald 0x0001 // max ce length 27779956955bSMatthias Ringwald ); 27789956955bSMatthias Ringwald return; 27799956955bSMatthias Ringwald } 2780d70217a2SMatthias Ringwald #endif 27817bdc6798S[email protected] } 2782b2f949feS[email protected] #endif 27837bdc6798S[email protected] 278432ab9390Smatthias.ringwald // send pending HCI commands 2785665d90f2SMatthias Ringwald for (it = (btstack_linked_item_t *) hci_stack->connections; it ; it = it->next){ 278605ae8de3SMatthias Ringwald hci_connection_t * connection = (hci_connection_t *) it; 278732ab9390Smatthias.ringwald 27880bf6344aS[email protected] switch(connection->state){ 27890bf6344aS[email protected] case SEND_CREATE_CONNECTION: 27904f3229d8S[email protected] switch(connection->address_type){ 279135454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 27924f3229d8S[email protected] case BD_ADDR_TYPE_CLASSIC: 27939da54300S[email protected] log_info("sending hci_create_connection"); 2794ad83dc6aS[email protected] hci_send_cmd(&hci_create_connection, connection->address, hci_usable_acl_packet_types(), 0, 0, 0, 1); 27954f3229d8S[email protected] break; 279635454696SMatthias Ringwald #endif 27974f3229d8S[email protected] default: 2798a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 2799d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 28009da54300S[email protected] log_info("sending hci_le_create_connection"); 28014f3229d8S[email protected] hci_send_cmd(&hci_le_create_connection, 2802b2571179Smatthias.ringwald 0x0060, // scan interval: 60 ms 2803b2571179Smatthias.ringwald 0x0030, // scan interval: 30 ms 28044f3229d8S[email protected] 0, // don't use whitelist 28054f3229d8S[email protected] connection->address_type, // peer address type 28064f3229d8S[email protected] connection->address, // peer bd addr 2807b95a5a35SMatthias Ringwald hci_stack->le_own_addr_type, // our addr type: 2808b2571179Smatthias.ringwald 0x0008, // conn interval min 2809b2571179Smatthias.ringwald 0x0018, // conn interval max 28104f3229d8S[email protected] 0, // conn latency 2811b2571179Smatthias.ringwald 0x0048, // supervision timeout 2812b2571179Smatthias.ringwald 0x0001, // min ce length 2813b2571179Smatthias.ringwald 0x0001 // max ce length 28144f3229d8S[email protected] ); 28154f3229d8S[email protected] 28164f3229d8S[email protected] connection->state = SENT_CREATE_CONNECTION; 2817b2f949feS[email protected] #endif 2818d70217a2SMatthias Ringwald #endif 28194f3229d8S[email protected] break; 28204f3229d8S[email protected] } 2821ad83dc6aS[email protected] return; 2822ad83dc6aS[email protected] 282335454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 28240bf6344aS[email protected] case RECEIVED_CONNECTION_REQUEST: 282594e4aaa2SMatthias Ringwald log_info("sending hci_accept_connection_request, remote eSCO %u", connection->remote_supported_feature_eSCO); 282632ab9390Smatthias.ringwald connection->state = ACCEPTED_CONNECTION_REQUEST; 28275cf766e8SMatthias Ringwald connection->role = HCI_ROLE_SLAVE; 2828e35edcc1S[email protected] if (connection->address_type == BD_ADDR_TYPE_CLASSIC){ 282934d2123cS[email protected] hci_send_cmd(&hci_accept_connection_request, connection->address, 1); 2830e35edcc1S[email protected] } 2831dbe1a790S[email protected] return; 283235454696SMatthias Ringwald #endif 28330bf6344aS[email protected] 2834a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 2835d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 28360bf6344aS[email protected] case SEND_CANCEL_CONNECTION: 28370bf6344aS[email protected] connection->state = SENT_CANCEL_CONNECTION; 28380bf6344aS[email protected] hci_send_cmd(&hci_le_create_connection_cancel); 28390bf6344aS[email protected] return; 2840a6725849S[email protected] #endif 2841d70217a2SMatthias Ringwald #endif 28420bf6344aS[email protected] case SEND_DISCONNECT: 28430bf6344aS[email protected] connection->state = SENT_DISCONNECT; 28447851196eSmatthias.ringwald hci_send_cmd(&hci_disconnect, connection->con_handle, 0x13); // remote closed connection 28450bf6344aS[email protected] return; 28460bf6344aS[email protected] 28470bf6344aS[email protected] default: 28480bf6344aS[email protected] break; 2849c7e0c5f6Smatthias.ringwald } 2850c7e0c5f6Smatthias.ringwald 285135454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 285232ab9390Smatthias.ringwald if (connection->authentication_flags & HANDLE_LINK_KEY_REQUEST){ 28539da54300S[email protected] log_info("responding to link key request"); 285434d2123cS[email protected] connectionClearAuthenticationFlags(connection, HANDLE_LINK_KEY_REQUEST); 285532ab9390Smatthias.ringwald link_key_t link_key; 2856c77e8838S[email protected] link_key_type_t link_key_type; 2857a98592bcSMatthias Ringwald if ( hci_stack->link_key_db 2858a98592bcSMatthias Ringwald && hci_stack->link_key_db->get_link_key(connection->address, link_key, &link_key_type) 285934d2123cS[email protected] && gap_security_level_for_link_key_type(link_key_type) >= connection->requested_security_level){ 28609ab95c90S[email protected] connection->link_key_type = link_key_type; 286132ab9390Smatthias.ringwald hci_send_cmd(&hci_link_key_request_reply, connection->address, &link_key); 286232ab9390Smatthias.ringwald } else { 286332ab9390Smatthias.ringwald hci_send_cmd(&hci_link_key_request_negative_reply, connection->address); 286432ab9390Smatthias.ringwald } 2865dbe1a790S[email protected] return; 286632ab9390Smatthias.ringwald } 28671d6b20aeS[email protected] 2868899283eaS[email protected] if (connection->authentication_flags & DENY_PIN_CODE_REQUEST){ 28699da54300S[email protected] log_info("denying to pin request"); 2870899283eaS[email protected] connectionClearAuthenticationFlags(connection, DENY_PIN_CODE_REQUEST); 287134d2123cS[email protected] hci_send_cmd(&hci_pin_code_request_negative_reply, connection->address); 28724c57c146S[email protected] return; 28734c57c146S[email protected] } 28744c57c146S[email protected] 2875dbe1a790S[email protected] if (connection->authentication_flags & SEND_IO_CAPABILITIES_REPLY){ 287634d2123cS[email protected] connectionClearAuthenticationFlags(connection, SEND_IO_CAPABILITIES_REPLY); 287782d8f825S[email protected] log_info("IO Capability Request received, stack bondable %u, io cap %u", hci_stack->bondable, hci_stack->ssp_io_capability); 287882d8f825S[email protected] if (hci_stack->bondable && (hci_stack->ssp_io_capability != SSP_IO_CAPABILITY_UNKNOWN)){ 2879106d6d11S[email protected] // tweak authentication requirements 28803a9fb326S[email protected] uint8_t authreq = hci_stack->ssp_authentication_requirement; 2881106d6d11S[email protected] if (connection->bonding_flags & BONDING_DEDICATED){ 28829faad3abS[email protected] authreq = SSP_IO_AUTHREQ_MITM_PROTECTION_NOT_REQUIRED_DEDICATED_BONDING; 28839faad3abS[email protected] } 28849faad3abS[email protected] if (gap_mitm_protection_required_for_security_level(connection->requested_security_level)){ 28859faad3abS[email protected] authreq |= 1; 2886106d6d11S[email protected] } 28873a9fb326S[email protected] hci_send_cmd(&hci_io_capability_request_reply, &connection->address, hci_stack->ssp_io_capability, NULL, authreq); 2888f8fb5f6eS[email protected] } else { 2889f8fb5f6eS[email protected] hci_send_cmd(&hci_io_capability_request_negative_reply, &connection->address, ERROR_CODE_PAIRING_NOT_ALLOWED); 2890f8fb5f6eS[email protected] } 2891dbe1a790S[email protected] return; 289232ab9390Smatthias.ringwald } 289332ab9390Smatthias.ringwald 2894dbe1a790S[email protected] if (connection->authentication_flags & SEND_USER_CONFIRM_REPLY){ 2895dbe1a790S[email protected] connectionClearAuthenticationFlags(connection, SEND_USER_CONFIRM_REPLY); 289634d2123cS[email protected] hci_send_cmd(&hci_user_confirmation_request_reply, &connection->address); 2897dbe1a790S[email protected] return; 2898dbe1a790S[email protected] } 2899dbe1a790S[email protected] 2900dbe1a790S[email protected] if (connection->authentication_flags & SEND_USER_PASSKEY_REPLY){ 2901dbe1a790S[email protected] connectionClearAuthenticationFlags(connection, SEND_USER_PASSKEY_REPLY); 290234d2123cS[email protected] hci_send_cmd(&hci_user_passkey_request_reply, &connection->address, 000000); 2903dbe1a790S[email protected] return; 2904dbe1a790S[email protected] } 2905afd4e962S[email protected] 2906afd4e962S[email protected] if (connection->bonding_flags & BONDING_REQUEST_REMOTE_FEATURES){ 2907afd4e962S[email protected] connection->bonding_flags &= ~BONDING_REQUEST_REMOTE_FEATURES; 290834d2123cS[email protected] hci_send_cmd(&hci_read_remote_supported_features_command, connection->con_handle); 29092bd8b7e7S[email protected] return; 29102bd8b7e7S[email protected] } 29112bd8b7e7S[email protected] 2912ad83dc6aS[email protected] if (connection->bonding_flags & BONDING_DISCONNECT_DEDICATED_DONE){ 2913ad83dc6aS[email protected] connection->bonding_flags &= ~BONDING_DISCONNECT_DEDICATED_DONE; 29141bd5283dS[email protected] connection->bonding_flags |= BONDING_EMIT_COMPLETE_ON_DISCONNECT; 291552d34f98S[email protected] hci_send_cmd(&hci_disconnect, connection->con_handle, 0x13); // authentication done 2916ad83dc6aS[email protected] return; 2917ad83dc6aS[email protected] } 291876f27cffSMatthias Ringwald 291934d2123cS[email protected] if (connection->bonding_flags & BONDING_SEND_AUTHENTICATE_REQUEST){ 292034d2123cS[email protected] connection->bonding_flags &= ~BONDING_SEND_AUTHENTICATE_REQUEST; 292134d2123cS[email protected] hci_send_cmd(&hci_authentication_requested, connection->con_handle); 29222bd8b7e7S[email protected] return; 2923afd4e962S[email protected] } 292476f27cffSMatthias Ringwald 2925dce78009S[email protected] if (connection->bonding_flags & BONDING_SEND_ENCRYPTION_REQUEST){ 2926dce78009S[email protected] connection->bonding_flags &= ~BONDING_SEND_ENCRYPTION_REQUEST; 2927dce78009S[email protected] hci_send_cmd(&hci_set_connection_encryption, connection->con_handle, 1); 2928dce78009S[email protected] return; 2929dce78009S[email protected] } 293076f27cffSMatthias Ringwald #endif 293176f27cffSMatthias Ringwald 293276f27cffSMatthias Ringwald if (connection->bonding_flags & BONDING_DISCONNECT_SECURITY_BLOCK){ 293376f27cffSMatthias Ringwald connection->bonding_flags &= ~BONDING_DISCONNECT_SECURITY_BLOCK; 293476f27cffSMatthias Ringwald hci_send_cmd(&hci_disconnect, connection->con_handle, 0x0005); // authentication failure 293576f27cffSMatthias Ringwald return; 293676f27cffSMatthias Ringwald } 2937da886c03S[email protected] 2938a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 2939da886c03S[email protected] if (connection->le_con_parameter_update_state == CON_PARAMETER_UPDATE_CHANGE_HCI_CON_PARAMETERS){ 2940da886c03S[email protected] connection->le_con_parameter_update_state = CON_PARAMETER_UPDATE_NONE; 2941da886c03S[email protected] 2942c37a3166S[email protected] uint16_t connection_interval_min = connection->le_conn_interval_min; 2943c37a3166S[email protected] connection->le_conn_interval_min = 0; 2944c37a3166S[email protected] hci_send_cmd(&hci_le_connection_update, connection->con_handle, connection_interval_min, 2945c37a3166S[email protected] connection->le_conn_interval_max, connection->le_conn_latency, connection->le_supervision_timeout, 2946c37a3166S[email protected] 0x0000, 0xffff); 2947c37a3166S[email protected] } 2948c37a3166S[email protected] #endif 2949dbe1a790S[email protected] } 2950c7e0c5f6Smatthias.ringwald 295105ae8de3SMatthias Ringwald hci_connection_t * connection; 29523a9fb326S[email protected] switch (hci_stack->state){ 29533429f56bSmatthias.ringwald case HCI_STATE_INITIALIZING: 295474b323a9SMatthias Ringwald hci_initializing_run(); 29553429f56bSmatthias.ringwald break; 2956c7e0c5f6Smatthias.ringwald 2957c7e0c5f6Smatthias.ringwald case HCI_STATE_HALTING: 2958c7e0c5f6Smatthias.ringwald 29599da54300S[email protected] log_info("HCI_STATE_HALTING"); 29609956955bSMatthias Ringwald 29619956955bSMatthias Ringwald // free whitelist entries 2962a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 2963d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 29649956955bSMatthias Ringwald { 2965665d90f2SMatthias Ringwald btstack_linked_list_iterator_t lit; 2966665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(&lit, &hci_stack->le_whitelist); 2967665d90f2SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&lit)){ 2968665d90f2SMatthias Ringwald whitelist_entry_t * entry = (whitelist_entry_t*) btstack_linked_list_iterator_next(&lit); 2969665d90f2SMatthias Ringwald btstack_linked_list_remove(&hci_stack->le_whitelist, (btstack_linked_item_t *) entry); 29709956955bSMatthias Ringwald btstack_memory_whitelist_entry_free(entry); 29719956955bSMatthias Ringwald } 29729956955bSMatthias Ringwald } 29739956955bSMatthias Ringwald #endif 2974d70217a2SMatthias Ringwald #endif 2975c7e0c5f6Smatthias.ringwald // close all open connections 29763a9fb326S[email protected] connection = (hci_connection_t *) hci_stack->connections; 2977c7e0c5f6Smatthias.ringwald if (connection){ 2978711e6c80SMatthias Ringwald hci_con_handle_t con_handle = (uint16_t) connection->con_handle; 2979d94d3cafS[email protected] if (!hci_can_send_command_packet_now()) return; 298032ab9390Smatthias.ringwald 29818837e9efSMatthias Ringwald log_info("HCI_STATE_HALTING, connection %p, handle %u", connection, con_handle); 2982c7e0c5f6Smatthias.ringwald 29838837e9efSMatthias Ringwald // cancel all l2cap connections right away instead of waiting for disconnection complete event ... 29848837e9efSMatthias Ringwald hci_emit_disconnection_complete(con_handle, 0x16); // terminated by local host 29858837e9efSMatthias Ringwald 29868837e9efSMatthias Ringwald // ... which would be ignored anyway as we shutdown (free) the connection now 2987c7e0c5f6Smatthias.ringwald hci_shutdown_connection(connection); 29888837e9efSMatthias Ringwald 29898837e9efSMatthias Ringwald // finally, send the disconnect command 29908837e9efSMatthias Ringwald hci_send_cmd(&hci_disconnect, con_handle, 0x13); // remote closed connection 2991c7e0c5f6Smatthias.ringwald return; 2992c7e0c5f6Smatthias.ringwald } 29939da54300S[email protected] log_info("HCI_STATE_HALTING, calling off"); 2994c7e0c5f6Smatthias.ringwald 299572ea5239Smatthias.ringwald // switch mode 2996c7e0c5f6Smatthias.ringwald hci_power_control_off(); 29979418f9c9Smatthias.ringwald 29989da54300S[email protected] log_info("HCI_STATE_HALTING, emitting state"); 299972ea5239Smatthias.ringwald hci_emit_state(); 30009da54300S[email protected] log_info("HCI_STATE_HALTING, done"); 300172ea5239Smatthias.ringwald break; 3002c7e0c5f6Smatthias.ringwald 300372ea5239Smatthias.ringwald case HCI_STATE_FALLING_ASLEEP: 30043a9fb326S[email protected] switch(hci_stack->substate) { 300574b323a9SMatthias Ringwald case HCI_FALLING_ASLEEP_DISCONNECT: 30069da54300S[email protected] log_info("HCI_STATE_FALLING_ASLEEP"); 300772ea5239Smatthias.ringwald // close all open connections 30083a9fb326S[email protected] connection = (hci_connection_t *) hci_stack->connections; 300966da7044Smatthias.ringwald 3010423a3e49SMatthias Ringwald #ifdef HAVE_PLATFORM_IPHONE_OS 301166da7044Smatthias.ringwald // don't close connections, if H4 supports power management 3012d0b87befSMatthias Ringwald if (btstack_control_iphone_power_management_enabled()){ 301366da7044Smatthias.ringwald connection = NULL; 301466da7044Smatthias.ringwald } 301566da7044Smatthias.ringwald #endif 301672ea5239Smatthias.ringwald if (connection){ 301732ab9390Smatthias.ringwald 301872ea5239Smatthias.ringwald // send disconnect 3019d94d3cafS[email protected] if (!hci_can_send_command_packet_now()) return; 302032ab9390Smatthias.ringwald 30219da54300S[email protected] log_info("HCI_STATE_FALLING_ASLEEP, connection %p, handle %u", connection, (uint16_t)connection->con_handle); 30226ad890d3Smatthias.ringwald hci_send_cmd(&hci_disconnect, connection->con_handle, 0x13); // remote closed connection 302372ea5239Smatthias.ringwald 302472ea5239Smatthias.ringwald // send disconnected event right away - causes higher layer connections to get closed, too. 302572ea5239Smatthias.ringwald hci_shutdown_connection(connection); 302672ea5239Smatthias.ringwald return; 302772ea5239Smatthias.ringwald } 302872ea5239Smatthias.ringwald 302992368cd3S[email protected] if (hci_classic_supported()){ 303089db417bSmatthias.ringwald // disable page and inquiry scan 3031d94d3cafS[email protected] if (!hci_can_send_command_packet_now()) return; 303232ab9390Smatthias.ringwald 30339da54300S[email protected] log_info("HCI_STATE_HALTING, disabling inq scans"); 30343a9fb326S[email protected] hci_send_cmd(&hci_write_scan_enable, hci_stack->connectable << 1); // drop inquiry scan but keep page scan 303589db417bSmatthias.ringwald 303689db417bSmatthias.ringwald // continue in next sub state 303774b323a9SMatthias Ringwald hci_stack->substate = HCI_FALLING_ASLEEP_W4_WRITE_SCAN_ENABLE; 303889db417bSmatthias.ringwald break; 303992368cd3S[email protected] } 3040202c8a4cSMatthias Ringwald // no break - fall through for ble-only chips 304192368cd3S[email protected] 304274b323a9SMatthias Ringwald case HCI_FALLING_ASLEEP_COMPLETE: 30439da54300S[email protected] log_info("HCI_STATE_HALTING, calling sleep"); 3044423a3e49SMatthias Ringwald #ifdef HAVE_PLATFORM_IPHONE_OS 304528171530Smatthias.ringwald // don't actually go to sleep, if H4 supports power management 3046d0b87befSMatthias Ringwald if (btstack_control_iphone_power_management_enabled()){ 304728171530Smatthias.ringwald // SLEEP MODE reached 30483a9fb326S[email protected] hci_stack->state = HCI_STATE_SLEEPING; 304928171530Smatthias.ringwald hci_emit_state(); 305028171530Smatthias.ringwald break; 305128171530Smatthias.ringwald } 305228171530Smatthias.ringwald #endif 305372ea5239Smatthias.ringwald // switch mode 30543a9fb326S[email protected] hci_power_control_sleep(); // changes hci_stack->state to SLEEP 3055c7e0c5f6Smatthias.ringwald hci_emit_state(); 305628171530Smatthias.ringwald break; 305728171530Smatthias.ringwald 305889db417bSmatthias.ringwald default: 305989db417bSmatthias.ringwald break; 306089db417bSmatthias.ringwald } 3061c7e0c5f6Smatthias.ringwald break; 3062c7e0c5f6Smatthias.ringwald 30633429f56bSmatthias.ringwald default: 30643429f56bSmatthias.ringwald break; 30651f504dbdSmatthias.ringwald } 30663429f56bSmatthias.ringwald } 306716833f0aSmatthias.ringwald 306831452debSmatthias.ringwald int hci_send_cmd_packet(uint8_t *packet, int size){ 306935454696SMatthias Ringwald // house-keeping 307035454696SMatthias Ringwald 307135454696SMatthias Ringwald if (IS_COMMAND(packet, hci_write_loopback_mode)){ 307235454696SMatthias Ringwald hci_stack->loopback_mode = packet[3]; 307335454696SMatthias Ringwald } 307435454696SMatthias Ringwald 307535454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 3076c8e4258aSmatthias.ringwald bd_addr_t addr; 3077c8e4258aSmatthias.ringwald hci_connection_t * conn; 3078c8e4258aSmatthias.ringwald 3079c8e4258aSmatthias.ringwald // create_connection? 3080c8e4258aSmatthias.ringwald if (IS_COMMAND(packet, hci_create_connection)){ 3081724d70a2SMatthias Ringwald reverse_bd_addr(&packet[3], addr); 30829da54300S[email protected] log_info("Create_connection to %s", bd_addr_to_str(addr)); 3083c8e4258aSmatthias.ringwald 30842e77e513S[email protected] conn = hci_connection_for_bd_addr_and_type(addr, BD_ADDR_TYPE_CLASSIC); 3085ad83dc6aS[email protected] if (!conn){ 308696a45072S[email protected] conn = create_connection_for_bd_addr_and_type(addr, BD_ADDR_TYPE_CLASSIC); 308717f1ba2aSmatthias.ringwald if (!conn){ 308817f1ba2aSmatthias.ringwald // notify client that alloc failed 30892deddeceSMatthias Ringwald hci_emit_connection_complete(addr, 0, BTSTACK_MEMORY_ALLOC_FAILED); 309017f1ba2aSmatthias.ringwald return 0; // don't sent packet to controller 309117f1ba2aSmatthias.ringwald } 3092ad83dc6aS[email protected] conn->state = SEND_CREATE_CONNECTION; 3093ad83dc6aS[email protected] } 3094ad83dc6aS[email protected] log_info("conn state %u", conn->state); 3095ad83dc6aS[email protected] switch (conn->state){ 3096ad83dc6aS[email protected] // if connection active exists 3097ad83dc6aS[email protected] case OPEN: 309862bda3fbS[email protected] // and OPEN, emit connection complete command, don't send to controller 3099274dad91SMatthias Ringwald hci_emit_connection_complete(addr, conn->con_handle, 0); 310062bda3fbS[email protected] return 0; 3101ad83dc6aS[email protected] case SEND_CREATE_CONNECTION: 3102ad83dc6aS[email protected] // connection created by hci, e.g. dedicated bonding 3103ad83dc6aS[email protected] break; 3104ad83dc6aS[email protected] default: 3105ad83dc6aS[email protected] // otherwise, just ignore as it is already in the open process 3106ad83dc6aS[email protected] return 0; 3107ad83dc6aS[email protected] } 3108c8e4258aSmatthias.ringwald conn->state = SENT_CREATE_CONNECTION; 3109c8e4258aSmatthias.ringwald } 311035454696SMatthias Ringwald 31117fde4af9Smatthias.ringwald if (IS_COMMAND(packet, hci_link_key_request_reply)){ 31127fde4af9Smatthias.ringwald hci_add_connection_flags_for_flipped_bd_addr(&packet[3], SENT_LINK_KEY_REPLY); 31137fde4af9Smatthias.ringwald } 31147fde4af9Smatthias.ringwald if (IS_COMMAND(packet, hci_link_key_request_negative_reply)){ 31157fde4af9Smatthias.ringwald hci_add_connection_flags_for_flipped_bd_addr(&packet[3], SENT_LINK_KEY_NEGATIVE_REQUEST); 31167fde4af9Smatthias.ringwald } 31177fde4af9Smatthias.ringwald 31188ef73945Smatthias.ringwald if (IS_COMMAND(packet, hci_delete_stored_link_key)){ 3119a98592bcSMatthias Ringwald if (hci_stack->link_key_db){ 3120724d70a2SMatthias Ringwald reverse_bd_addr(&packet[3], addr); 3121a98592bcSMatthias Ringwald hci_stack->link_key_db->delete_link_key(addr); 31228ef73945Smatthias.ringwald } 31238ef73945Smatthias.ringwald } 3124c8e4258aSmatthias.ringwald 31256724cd9eS[email protected] if (IS_COMMAND(packet, hci_pin_code_request_negative_reply) 31266724cd9eS[email protected] || IS_COMMAND(packet, hci_pin_code_request_reply)){ 3127724d70a2SMatthias Ringwald reverse_bd_addr(&packet[3], addr); 31282e77e513S[email protected] conn = hci_connection_for_bd_addr_and_type(addr, BD_ADDR_TYPE_CLASSIC); 31296724cd9eS[email protected] if (conn){ 31306724cd9eS[email protected] connectionClearAuthenticationFlags(conn, LEGACY_PAIRING_ACTIVE); 31316724cd9eS[email protected] } 31326724cd9eS[email protected] } 31336724cd9eS[email protected] 31346724cd9eS[email protected] if (IS_COMMAND(packet, hci_user_confirmation_request_negative_reply) 31356724cd9eS[email protected] || IS_COMMAND(packet, hci_user_confirmation_request_reply) 31366724cd9eS[email protected] || IS_COMMAND(packet, hci_user_passkey_request_negative_reply) 31376724cd9eS[email protected] || IS_COMMAND(packet, hci_user_passkey_request_reply)) { 3138724d70a2SMatthias Ringwald reverse_bd_addr(&packet[3], addr); 31392e77e513S[email protected] conn = hci_connection_for_bd_addr_and_type(addr, BD_ADDR_TYPE_CLASSIC); 31406724cd9eS[email protected] if (conn){ 31416724cd9eS[email protected] connectionClearAuthenticationFlags(conn, SSP_PAIRING_ACTIVE); 31426724cd9eS[email protected] } 31436724cd9eS[email protected] } 3144ee752bb8SMatthias Ringwald 3145ee752bb8SMatthias Ringwald #ifdef ENABLE_SCO_OVER_HCI 3146ee752bb8SMatthias Ringwald // setup_synchronous_connection? Voice setting at offset 22 3147ee752bb8SMatthias Ringwald if (IS_COMMAND(packet, hci_setup_synchronous_connection)){ 3148ee752bb8SMatthias Ringwald // TODO: compare to current setting if sco connection already active 3149ee752bb8SMatthias Ringwald hci_stack->sco_voice_setting_active = little_endian_read_16(packet, 15); 3150ee752bb8SMatthias Ringwald } 3151ee752bb8SMatthias Ringwald // accept_synchronus_connection? Voice setting at offset 18 3152ee752bb8SMatthias Ringwald if (IS_COMMAND(packet, hci_accept_synchronous_connection)){ 3153ee752bb8SMatthias Ringwald // TODO: compare to current setting if sco connection already active 3154ee752bb8SMatthias Ringwald hci_stack->sco_voice_setting_active = little_endian_read_16(packet, 19); 3155ee752bb8SMatthias Ringwald } 3156ee752bb8SMatthias Ringwald #endif 315735454696SMatthias Ringwald #endif 31584b3e1e19SMatthias Ringwald 3159a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 3160d70217a2SMatthias Ringwald #ifdef ENABLE_LE_PERIPHERAL 316169a97523S[email protected] if (IS_COMMAND(packet, hci_le_set_random_address)){ 3162b95a5a35SMatthias Ringwald hci_stack->le_random_address_set = 1; 3163b95a5a35SMatthias Ringwald reverse_bd_addr(&packet[3], hci_stack->le_random_address); 3164d70217a2SMatthias Ringwald } 3165171293d3SMatthias Ringwald if (IS_COMMAND(packet, hci_le_set_advertise_enable)){ 3166171293d3SMatthias Ringwald hci_stack->le_advertisements_active = packet[3]; 3167171293d3SMatthias Ringwald } 3168d70217a2SMatthias Ringwald #endif 3169d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 3170b04dfa37SMatthias Ringwald if (IS_COMMAND(packet, hci_le_create_connection)){ 3171b04dfa37SMatthias Ringwald // white list used? 3172b04dfa37SMatthias Ringwald uint8_t initiator_filter_policy = packet[7]; 3173b04dfa37SMatthias Ringwald switch (initiator_filter_policy){ 3174b04dfa37SMatthias Ringwald case 0: 3175b04dfa37SMatthias Ringwald // whitelist not used 3176b04dfa37SMatthias Ringwald hci_stack->le_connecting_state = LE_CONNECTING_DIRECT; 3177b04dfa37SMatthias Ringwald break; 3178b04dfa37SMatthias Ringwald case 1: 3179b04dfa37SMatthias Ringwald hci_stack->le_connecting_state = LE_CONNECTING_WHITELIST; 3180b04dfa37SMatthias Ringwald break; 3181b04dfa37SMatthias Ringwald default: 3182b04dfa37SMatthias Ringwald log_error("Invalid initiator_filter_policy in LE Create Connection %u", initiator_filter_policy); 3183b04dfa37SMatthias Ringwald break; 3184b04dfa37SMatthias Ringwald } 3185b04dfa37SMatthias Ringwald } 3186b04dfa37SMatthias Ringwald if (IS_COMMAND(packet, hci_le_create_connection_cancel)){ 3187b04dfa37SMatthias Ringwald hci_stack->le_connecting_state = LE_CONNECTING_IDLE; 3188b04dfa37SMatthias Ringwald } 318969a97523S[email protected] #endif 3190d70217a2SMatthias Ringwald #endif 319169a97523S[email protected] 31923a9fb326S[email protected] hci_stack->num_cmd_packets--; 31935bb5bc3eS[email protected] 31945bb5bc3eS[email protected] hci_dump_packet(HCI_COMMAND_DATA_PACKET, 0, packet, size); 31956b4af23dS[email protected] int err = hci_stack->hci_transport->send_packet(HCI_COMMAND_DATA_PACKET, packet, size); 31966b4af23dS[email protected] 3197d051460cS[email protected] // release packet buffer for synchronous transport implementations 3198c8b9416aS[email protected] if (hci_transport_synchronous() && (packet == hci_stack->hci_packet_buffer)){ 31996b4af23dS[email protected] hci_stack->hci_packet_buffer_reserved = 0; 32006b4af23dS[email protected] } 32016b4af23dS[email protected] 32026b4af23dS[email protected] return err; 320331452debSmatthias.ringwald } 32048adf0ddaSmatthias.ringwald 32052bd8b7e7S[email protected] // disconnect because of security block 32062bd8b7e7S[email protected] void hci_disconnect_security_block(hci_con_handle_t con_handle){ 32072bd8b7e7S[email protected] hci_connection_t * connection = hci_connection_for_handle(con_handle); 32082bd8b7e7S[email protected] if (!connection) return; 32092bd8b7e7S[email protected] connection->bonding_flags |= BONDING_DISCONNECT_SECURITY_BLOCK; 32102bd8b7e7S[email protected] } 32112bd8b7e7S[email protected] 32122bd8b7e7S[email protected] 3213dbe1a790S[email protected] // Configure Secure Simple Pairing 3214dbe1a790S[email protected] 321535454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 321635454696SMatthias Ringwald 3217dbe1a790S[email protected] // enable will enable SSP during init 321815a95bd5SMatthias Ringwald void gap_ssp_set_enable(int enable){ 32193a9fb326S[email protected] hci_stack->ssp_enable = enable; 3220dbe1a790S[email protected] } 3221dbe1a790S[email protected] 322295d71764SMatthias Ringwald static int hci_local_ssp_activated(void){ 322315a95bd5SMatthias Ringwald return gap_ssp_supported() && hci_stack->ssp_enable; 32242bd8b7e7S[email protected] } 32252bd8b7e7S[email protected] 3226dbe1a790S[email protected] // if set, BTstack will respond to io capability request using authentication requirement 322715a95bd5SMatthias Ringwald void gap_ssp_set_io_capability(int io_capability){ 32283a9fb326S[email protected] hci_stack->ssp_io_capability = io_capability; 3229dbe1a790S[email protected] } 323015a95bd5SMatthias Ringwald void gap_ssp_set_authentication_requirement(int authentication_requirement){ 32313a9fb326S[email protected] hci_stack->ssp_authentication_requirement = authentication_requirement; 3232dbe1a790S[email protected] } 3233dbe1a790S[email protected] 3234dbe1a790S[email protected] // if set, BTstack will confirm a numberic comparion and enter '000000' if requested 323515a95bd5SMatthias Ringwald void gap_ssp_set_auto_accept(int auto_accept){ 32363a9fb326S[email protected] hci_stack->ssp_auto_accept = auto_accept; 3237dbe1a790S[email protected] } 323835454696SMatthias Ringwald #endif 3239dbe1a790S[email protected] 324094be1a66SMatthias Ringwald // va_list part of hci_send_cmd 324194be1a66SMatthias Ringwald int hci_send_cmd_va_arg(const hci_cmd_t *cmd, va_list argptr){ 3242d94d3cafS[email protected] if (!hci_can_send_command_packet_now()){ 32439d14b626S[email protected] log_error("hci_send_cmd called but cannot send packet now"); 32449d14b626S[email protected] return 0; 32459d14b626S[email protected] } 32469d14b626S[email protected] 32475127cc62S[email protected] // for HCI INITIALIZATION 32489da54300S[email protected] // log_info("hci_send_cmd: opcode %04x", cmd->opcode); 32495127cc62S[email protected] hci_stack->last_cmd_opcode = cmd->opcode; 32505127cc62S[email protected] 32519d14b626S[email protected] hci_reserve_packet_buffer(); 32529d14b626S[email protected] uint8_t * packet = hci_stack->hci_packet_buffer; 325394be1a66SMatthias Ringwald uint16_t size = hci_cmd_create_from_template(packet, cmd, argptr); 325494be1a66SMatthias Ringwald return hci_send_cmd_packet(packet, size); 325594be1a66SMatthias Ringwald } 32569d14b626S[email protected] 325794be1a66SMatthias Ringwald /** 325894be1a66SMatthias Ringwald * pre: numcmds >= 0 - it's allowed to send a command to the controller 325994be1a66SMatthias Ringwald */ 326094be1a66SMatthias Ringwald int hci_send_cmd(const hci_cmd_t *cmd, ...){ 32611cd208adSmatthias.ringwald va_list argptr; 32621cd208adSmatthias.ringwald va_start(argptr, cmd); 326394be1a66SMatthias Ringwald int res = hci_send_cmd_va_arg(cmd, argptr); 32641cd208adSmatthias.ringwald va_end(argptr); 326594be1a66SMatthias Ringwald return res; 326693b8dc03Smatthias.ringwald } 3267c8e4258aSmatthias.ringwald 3268ee091cf1Smatthias.ringwald // Create various non-HCI events. 3269ee091cf1Smatthias.ringwald // TODO: generalize, use table similar to hci_create_command 3270ee091cf1Smatthias.ringwald 3271d6b06661SMatthias Ringwald static void hci_emit_event(uint8_t * event, uint16_t size, int dump){ 3272fb37a842SMatthias Ringwald // dump packet 3273d6b06661SMatthias Ringwald if (dump) { 3274300c1ba4SMatthias Ringwald hci_dump_packet( HCI_EVENT_PACKET, 0, event, size); 3275d6b06661SMatthias Ringwald } 32761ef6bb52SMatthias Ringwald 3277fb37a842SMatthias Ringwald // dispatch to all event handlers 32781ef6bb52SMatthias Ringwald btstack_linked_list_iterator_t it; 32791ef6bb52SMatthias Ringwald btstack_linked_list_iterator_init(&it, &hci_stack->event_handlers); 32801ef6bb52SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&it)){ 32811ef6bb52SMatthias Ringwald btstack_packet_callback_registration_t * entry = (btstack_packet_callback_registration_t*) btstack_linked_list_iterator_next(&it); 3282d9a7306aSMatthias Ringwald entry->callback(HCI_EVENT_PACKET, 0, event, size); 32831ef6bb52SMatthias Ringwald } 3284d6b06661SMatthias Ringwald } 3285d6b06661SMatthias Ringwald 3286d6b06661SMatthias Ringwald static void hci_emit_acl_packet(uint8_t * packet, uint16_t size){ 3287fb37a842SMatthias Ringwald if (!hci_stack->acl_packet_handler) return; 32883d50b4baSMatthias Ringwald hci_stack->acl_packet_handler(HCI_ACL_DATA_PACKET, 0, packet, size); 3289d6b06661SMatthias Ringwald } 3290d6b06661SMatthias Ringwald 329135454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 3292701e3307SMatthias Ringwald static void hci_notify_if_sco_can_send_now(void){ 32933bc639ceSMatthias Ringwald // notify SCO sender if waiting 3294701e3307SMatthias Ringwald if (!hci_stack->sco_waiting_for_can_send_now) return; 3295701e3307SMatthias Ringwald if (hci_can_send_sco_packet_now()){ 32963bc639ceSMatthias Ringwald hci_stack->sco_waiting_for_can_send_now = 0; 3297701e3307SMatthias Ringwald uint8_t event[2] = { HCI_EVENT_SCO_CAN_SEND_NOW, 0 }; 3298701e3307SMatthias Ringwald hci_dump_packet(HCI_EVENT_PACKET, 1, event, sizeof(event)); 32993d50b4baSMatthias Ringwald hci_stack->sco_packet_handler(HCI_EVENT_PACKET, 0, event, sizeof(event)); 33003bc639ceSMatthias Ringwald } 33013bc639ceSMatthias Ringwald } 330235454696SMatthias Ringwald #endif 33033bc639ceSMatthias Ringwald 330471de195eSMatthias Ringwald void hci_emit_state(void){ 33053a9fb326S[email protected] log_info("BTSTACK_EVENT_STATE %u", hci_stack->state); 3306425d1371Smatthias.ringwald uint8_t event[3]; 330780d52d6bSmatthias.ringwald event[0] = BTSTACK_EVENT_STATE; 3308425d1371Smatthias.ringwald event[1] = sizeof(event) - 2; 33093a9fb326S[email protected] event[2] = hci_stack->state; 3310d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 3311c8e4258aSmatthias.ringwald } 3312c8e4258aSmatthias.ringwald 331335454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 33142deddeceSMatthias Ringwald static void hci_emit_connection_complete(bd_addr_t address, hci_con_handle_t con_handle, uint8_t status){ 3315425d1371Smatthias.ringwald uint8_t event[13]; 3316c8e4258aSmatthias.ringwald event[0] = HCI_EVENT_CONNECTION_COMPLETE; 3317425d1371Smatthias.ringwald event[1] = sizeof(event) - 2; 331817f1ba2aSmatthias.ringwald event[2] = status; 33192deddeceSMatthias Ringwald little_endian_store_16(event, 3, con_handle); 33202deddeceSMatthias Ringwald reverse_bd_addr(address, &event[5]); 3321c8e4258aSmatthias.ringwald event[11] = 1; // ACL connection 3322c8e4258aSmatthias.ringwald event[12] = 0; // encryption disabled 3323d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 3324c8e4258aSmatthias.ringwald } 332552db98b2SMatthias Ringwald static void hci_emit_l2cap_check_timeout(hci_connection_t *conn){ 332652db98b2SMatthias Ringwald if (disable_l2cap_timeouts) return; 332752db98b2SMatthias Ringwald log_info("L2CAP_EVENT_TIMEOUT_CHECK"); 332852db98b2SMatthias Ringwald uint8_t event[4]; 332952db98b2SMatthias Ringwald event[0] = L2CAP_EVENT_TIMEOUT_CHECK; 333052db98b2SMatthias Ringwald event[1] = sizeof(event) - 2; 333152db98b2SMatthias Ringwald little_endian_store_16(event, 2, conn->con_handle); 333252db98b2SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 333352db98b2SMatthias Ringwald } 333435454696SMatthias Ringwald #endif 3335c8e4258aSmatthias.ringwald 333635454696SMatthias Ringwald #ifdef ENABLE_BLE 3337d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 3338fc64f94aSMatthias Ringwald static void hci_emit_le_connection_complete(uint8_t address_type, bd_addr_t address, hci_con_handle_t con_handle, uint8_t status){ 33394f3229d8S[email protected] uint8_t event[21]; 33404f3229d8S[email protected] event[0] = HCI_EVENT_LE_META; 33414f3229d8S[email protected] event[1] = sizeof(event) - 2; 33424f3229d8S[email protected] event[2] = HCI_SUBEVENT_LE_CONNECTION_COMPLETE; 33434f3229d8S[email protected] event[3] = status; 3344fc64f94aSMatthias Ringwald little_endian_store_16(event, 4, con_handle); 33454f3229d8S[email protected] event[6] = 0; // TODO: role 33466e2e9a6bS[email protected] event[7] = address_type; 3347724d70a2SMatthias Ringwald reverse_bd_addr(address, &event[8]); 3348f8fbdce0SMatthias Ringwald little_endian_store_16(event, 14, 0); // interval 3349f8fbdce0SMatthias Ringwald little_endian_store_16(event, 16, 0); // latency 3350f8fbdce0SMatthias Ringwald little_endian_store_16(event, 18, 0); // supervision timeout 33514f3229d8S[email protected] event[20] = 0; // master clock accuracy 3352d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 33534f3229d8S[email protected] } 335435454696SMatthias Ringwald #endif 3355d70217a2SMatthias Ringwald #endif 33564f3229d8S[email protected] 3357fc64f94aSMatthias Ringwald static void hci_emit_disconnection_complete(hci_con_handle_t con_handle, uint8_t reason){ 3358425d1371Smatthias.ringwald uint8_t event[6]; 33593c4d4b90Smatthias.ringwald event[0] = HCI_EVENT_DISCONNECTION_COMPLETE; 3360e518c4b8Smatthias.ringwald event[1] = sizeof(event) - 2; 33613c4d4b90Smatthias.ringwald event[2] = 0; // status = OK 3362fc64f94aSMatthias Ringwald little_endian_store_16(event, 3, con_handle); 33633c4d4b90Smatthias.ringwald event[5] = reason; 3364d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 33653c4d4b90Smatthias.ringwald } 33663c4d4b90Smatthias.ringwald 3367b83d5eabSMatthias Ringwald static void hci_emit_nr_connections_changed(void){ 3368e0abb8e7S[email protected] log_info("BTSTACK_EVENT_NR_CONNECTIONS_CHANGED %u", nr_hci_connections()); 3369425d1371Smatthias.ringwald uint8_t event[3]; 337080d52d6bSmatthias.ringwald event[0] = BTSTACK_EVENT_NR_CONNECTIONS_CHANGED; 3371425d1371Smatthias.ringwald event[1] = sizeof(event) - 2; 337243bfb1bdSmatthias.ringwald event[2] = nr_hci_connections(); 3373d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 337443bfb1bdSmatthias.ringwald } 3375038bc64cSmatthias.ringwald 3376b83d5eabSMatthias Ringwald static void hci_emit_hci_open_failed(void){ 3377e0abb8e7S[email protected] log_info("BTSTACK_EVENT_POWERON_FAILED"); 3378425d1371Smatthias.ringwald uint8_t event[2]; 337980d52d6bSmatthias.ringwald event[0] = BTSTACK_EVENT_POWERON_FAILED; 3380425d1371Smatthias.ringwald event[1] = sizeof(event) - 2; 3381d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 3382038bc64cSmatthias.ringwald } 33831b0e3922Smatthias.ringwald 338435454696SMatthias Ringwald static void hci_emit_dedicated_bonding_result(bd_addr_t address, uint8_t status){ 338535454696SMatthias Ringwald log_info("hci_emit_dedicated_bonding_result %u ", status); 338635454696SMatthias Ringwald uint8_t event[9]; 338735454696SMatthias Ringwald int pos = 0; 338835454696SMatthias Ringwald event[pos++] = GAP_EVENT_DEDICATED_BONDING_COMPLETED; 338935454696SMatthias Ringwald event[pos++] = sizeof(event) - 2; 339035454696SMatthias Ringwald event[pos++] = status; 339135454696SMatthias Ringwald reverse_bd_addr(address, &event[pos]); 3392d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 3393381fbed8Smatthias.ringwald } 3394458bf4e8S[email protected] 339535454696SMatthias Ringwald 339635454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 339735454696SMatthias Ringwald 3398b83d5eabSMatthias Ringwald static void hci_emit_security_level(hci_con_handle_t con_handle, gap_security_level_t level){ 3399df3354fcS[email protected] log_info("hci_emit_security_level %u for handle %x", level, con_handle); 3400a00031e2S[email protected] uint8_t event[5]; 3401e00caf9cS[email protected] int pos = 0; 34025611a760SMatthias Ringwald event[pos++] = GAP_EVENT_SECURITY_LEVEL; 3403e00caf9cS[email protected] event[pos++] = sizeof(event) - 2; 3404f8fbdce0SMatthias Ringwald little_endian_store_16(event, 2, con_handle); 3405e00caf9cS[email protected] pos += 2; 3406e00caf9cS[email protected] event[pos++] = level; 3407d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 3408e00caf9cS[email protected] } 3409e00caf9cS[email protected] 341035454696SMatthias Ringwald static gap_security_level_t gap_security_level_for_connection(hci_connection_t * connection){ 341135454696SMatthias Ringwald if (!connection) return LEVEL_0; 341235454696SMatthias Ringwald if ((connection->authentication_flags & CONNECTION_ENCRYPTED) == 0) return LEVEL_0; 341335454696SMatthias Ringwald return gap_security_level_for_link_key_type(connection->link_key_type); 341435454696SMatthias Ringwald } 341535454696SMatthias Ringwald 341635454696SMatthias Ringwald static void hci_emit_discoverable_enabled(uint8_t enabled){ 341735454696SMatthias Ringwald log_info("BTSTACK_EVENT_DISCOVERABLE_ENABLED %u", enabled); 341835454696SMatthias Ringwald uint8_t event[3]; 341935454696SMatthias Ringwald event[0] = BTSTACK_EVENT_DISCOVERABLE_ENABLED; 342035454696SMatthias Ringwald event[1] = sizeof(event) - 2; 342135454696SMatthias Ringwald event[2] = enabled; 3422d6b06661SMatthias Ringwald hci_emit_event(event, sizeof(event), 1); 3423ad83dc6aS[email protected] } 3424ad83dc6aS[email protected] 342506b9e820SMatthias Ringwald #ifdef ENABLE_CLASSIC 342698a2fd1cSMatthias Ringwald // query if remote side supports eSCO 3427073bd0faSMatthias Ringwald int hci_remote_esco_supported(hci_con_handle_t con_handle){ 342898a2fd1cSMatthias Ringwald hci_connection_t * connection = hci_connection_for_handle(con_handle); 342998a2fd1cSMatthias Ringwald if (!connection) return 0; 343098a2fd1cSMatthias Ringwald return connection->remote_supported_feature_eSCO; 343198a2fd1cSMatthias Ringwald } 343298a2fd1cSMatthias Ringwald 34332bd8b7e7S[email protected] // query if remote side supports SSP 34342bd8b7e7S[email protected] int hci_remote_ssp_supported(hci_con_handle_t con_handle){ 34352bd8b7e7S[email protected] hci_connection_t * connection = hci_connection_for_handle(con_handle); 34362bd8b7e7S[email protected] if (!connection) return 0; 34372bd8b7e7S[email protected] return (connection->bonding_flags & BONDING_REMOTE_SUPPORTS_SSP) ? 1 : 0; 34382bd8b7e7S[email protected] } 34392bd8b7e7S[email protected] 344015a95bd5SMatthias Ringwald int gap_ssp_supported_on_both_sides(hci_con_handle_t handle){ 3441df3354fcS[email protected] return hci_local_ssp_activated() && hci_remote_ssp_supported(handle); 3442df3354fcS[email protected] } 344306b9e820SMatthias Ringwald #endif 3444df3354fcS[email protected] 3445458bf4e8S[email protected] // GAP API 3446458bf4e8S[email protected] /** 3447458bf4e8S[email protected] * @bbrief enable/disable bonding. default is enabled 3448458bf4e8S[email protected] * @praram enabled 3449458bf4e8S[email protected] */ 34504c57c146S[email protected] void gap_set_bondable_mode(int enable){ 34513a9fb326S[email protected] hci_stack->bondable = enable ? 1 : 0; 3452458bf4e8S[email protected] } 34534ef6443cSMatthias Ringwald /** 34544ef6443cSMatthias Ringwald * @brief Get bondable mode. 34554ef6443cSMatthias Ringwald * @return 1 if bondable 34564ef6443cSMatthias Ringwald */ 34574ef6443cSMatthias Ringwald int gap_get_bondable_mode(void){ 34584ef6443cSMatthias Ringwald return hci_stack->bondable; 34594ef6443cSMatthias Ringwald } 3460cb230b9dS[email protected] 3461cb230b9dS[email protected] /** 346234d2123cS[email protected] * @brief map link keys to security levels 3463cb230b9dS[email protected] */ 346434d2123cS[email protected] gap_security_level_t gap_security_level_for_link_key_type(link_key_type_t link_key_type){ 346534d2123cS[email protected] switch (link_key_type){ 34663c68dfa9S[email protected] case AUTHENTICATED_COMBINATION_KEY_GENERATED_FROM_P256: 34673c68dfa9S[email protected] return LEVEL_4; 34683c68dfa9S[email protected] case COMBINATION_KEY: 34693c68dfa9S[email protected] case AUTHENTICATED_COMBINATION_KEY_GENERATED_FROM_P192: 34703c68dfa9S[email protected] return LEVEL_3; 34713c68dfa9S[email protected] default: 34723c68dfa9S[email protected] return LEVEL_2; 34733c68dfa9S[email protected] } 3474cb230b9dS[email protected] } 3475cb230b9dS[email protected] 3476106d6d11S[email protected] int gap_mitm_protection_required_for_security_level(gap_security_level_t level){ 34775127cc62S[email protected] log_info("gap_mitm_protection_required_for_security_level %u", level); 3478106d6d11S[email protected] return level > LEVEL_2; 3479106d6d11S[email protected] } 3480106d6d11S[email protected] 348134d2123cS[email protected] /** 348234d2123cS[email protected] * @brief get current security level 348334d2123cS[email protected] */ 348434d2123cS[email protected] gap_security_level_t gap_security_level(hci_con_handle_t con_handle){ 348534d2123cS[email protected] hci_connection_t * connection = hci_connection_for_handle(con_handle); 348634d2123cS[email protected] if (!connection) return LEVEL_0; 348734d2123cS[email protected] return gap_security_level_for_connection(connection); 348834d2123cS[email protected] } 348934d2123cS[email protected] 3490cb230b9dS[email protected] /** 3491cb230b9dS[email protected] * @brief request connection to device to 3492cb230b9dS[email protected] * @result GAP_AUTHENTICATION_RESULT 3493cb230b9dS[email protected] */ 349434d2123cS[email protected] void gap_request_security_level(hci_con_handle_t con_handle, gap_security_level_t requested_level){ 349534d2123cS[email protected] hci_connection_t * connection = hci_connection_for_handle(con_handle); 349634d2123cS[email protected] if (!connection){ 3497a00031e2S[email protected] hci_emit_security_level(con_handle, LEVEL_0); 349834d2123cS[email protected] return; 349934d2123cS[email protected] } 350034d2123cS[email protected] gap_security_level_t current_level = gap_security_level(con_handle); 350134d2123cS[email protected] log_info("gap_request_security_level %u, current level %u", requested_level, current_level); 350234d2123cS[email protected] if (current_level >= requested_level){ 3503a00031e2S[email protected] hci_emit_security_level(con_handle, current_level); 350434d2123cS[email protected] return; 350534d2123cS[email protected] } 3506a00031e2S[email protected] 350734d2123cS[email protected] connection->requested_security_level = requested_level; 3508a00031e2S[email protected] 350925bf5872S[email protected] #if 0 351025bf5872S[email protected] // sending encryption request without a link key results in an error. 351125bf5872S[email protected] // TODO: figure out how to use it properly 351225bf5872S[email protected] 3513fb8ba0dbS[email protected] // would enabling ecnryption suffice (>= LEVEL_2)? 3514a98592bcSMatthias Ringwald if (hci_stack->link_key_db){ 3515a00031e2S[email protected] link_key_type_t link_key_type; 3516a00031e2S[email protected] link_key_t link_key; 3517a98592bcSMatthias Ringwald if (hci_stack->link_key_db->get_link_key( &connection->address, &link_key, &link_key_type)){ 3518a00031e2S[email protected] if (gap_security_level_for_link_key_type(link_key_type) >= requested_level){ 3519a00031e2S[email protected] connection->bonding_flags |= BONDING_SEND_ENCRYPTION_REQUEST; 3520a00031e2S[email protected] return; 3521a00031e2S[email protected] } 3522a00031e2S[email protected] } 3523a00031e2S[email protected] } 352425bf5872S[email protected] #endif 3525a00031e2S[email protected] 35261eb2563eS[email protected] // try to authenticate connection 35271eb2563eS[email protected] connection->bonding_flags |= BONDING_SEND_AUTHENTICATE_REQUEST; 3528e80b2cf9S[email protected] hci_run(); 3529e00caf9cS[email protected] } 3530ad83dc6aS[email protected] 3531ad83dc6aS[email protected] /** 3532ad83dc6aS[email protected] * @brief start dedicated bonding with device. disconnect after bonding 3533ad83dc6aS[email protected] * @param device 3534ad83dc6aS[email protected] * @param request MITM protection 3535ad83dc6aS[email protected] * @result GAP_DEDICATED_BONDING_COMPLETE 3536ad83dc6aS[email protected] */ 3537ad83dc6aS[email protected] int gap_dedicated_bonding(bd_addr_t device, int mitm_protection_required){ 3538ad83dc6aS[email protected] 3539ad83dc6aS[email protected] // create connection state machine 354096a45072S[email protected] hci_connection_t * connection = create_connection_for_bd_addr_and_type(device, BD_ADDR_TYPE_CLASSIC); 3541ad83dc6aS[email protected] 3542ad83dc6aS[email protected] if (!connection){ 3543ad83dc6aS[email protected] return BTSTACK_MEMORY_ALLOC_FAILED; 3544ad83dc6aS[email protected] } 3545ad83dc6aS[email protected] 3546ad83dc6aS[email protected] // delete linkn key 354715a95bd5SMatthias Ringwald gap_drop_link_key_for_bd_addr(device); 3548ad83dc6aS[email protected] 3549ad83dc6aS[email protected] // configure LEVEL_2/3, dedicated bonding 3550ad83dc6aS[email protected] connection->state = SEND_CREATE_CONNECTION; 3551ad83dc6aS[email protected] connection->requested_security_level = mitm_protection_required ? LEVEL_3 : LEVEL_2; 3552f04a0c31SMatthias Ringwald log_info("gap_dedicated_bonding, mitm %d -> level %u", mitm_protection_required, connection->requested_security_level); 3553ad83dc6aS[email protected] connection->bonding_flags = BONDING_DEDICATED; 3554ad83dc6aS[email protected] 3555ad83dc6aS[email protected] // wait for GAP Security Result and send GAP Dedicated Bonding complete 3556ad83dc6aS[email protected] 3557ad83dc6aS[email protected] // handle: connnection failure (connection complete != ok) 3558ad83dc6aS[email protected] // handle: authentication failure 3559ad83dc6aS[email protected] // handle: disconnect on done 3560ad83dc6aS[email protected] 3561ad83dc6aS[email protected] hci_run(); 3562ad83dc6aS[email protected] 3563ad83dc6aS[email protected] return 0; 3564ad83dc6aS[email protected] } 356535454696SMatthias Ringwald #endif 35668e618f72S[email protected] 35678e618f72S[email protected] void gap_set_local_name(const char * local_name){ 35688e618f72S[email protected] hci_stack->local_name = local_name; 35698e618f72S[email protected] } 35708e618f72S[email protected] 357135454696SMatthias Ringwald 357235454696SMatthias Ringwald #ifdef ENABLE_BLE 357335454696SMatthias Ringwald 3574d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 3575d8e8f12aSMatthias Ringwald void gap_start_scan(void){ 3576d8e8f12aSMatthias Ringwald if (hci_stack->le_scanning_state == LE_SCANNING) return; 35777bdc6798S[email protected] hci_stack->le_scanning_state = LE_START_SCAN; 35787bdc6798S[email protected] hci_run(); 35797bdc6798S[email protected] } 35808e618f72S[email protected] 3581d8e8f12aSMatthias Ringwald void gap_stop_scan(void){ 3582d8e8f12aSMatthias Ringwald if ( hci_stack->le_scanning_state == LE_SCAN_IDLE) return; 35837bdc6798S[email protected] hci_stack->le_scanning_state = LE_STOP_SCAN; 35847bdc6798S[email protected] hci_run(); 35857bdc6798S[email protected] } 35864f3229d8S[email protected] 3587d8e8f12aSMatthias Ringwald void gap_set_scan_parameters(uint8_t scan_type, uint16_t scan_interval, uint16_t scan_window){ 3588ef11999fSmatthias.ringwald hci_stack->le_scan_type = scan_type; 3589ef11999fSmatthias.ringwald hci_stack->le_scan_interval = scan_interval; 3590ef11999fSmatthias.ringwald hci_stack->le_scan_window = scan_window; 3591ef11999fSmatthias.ringwald hci_run(); 3592ef11999fSmatthias.ringwald } 35934f3229d8S[email protected] 3594d8e8f12aSMatthias Ringwald uint8_t gap_connect(bd_addr_t addr, bd_addr_type_t addr_type){ 35954f3229d8S[email protected] hci_connection_t * conn = hci_connection_for_bd_addr_and_type(addr, addr_type); 35964f3229d8S[email protected] if (!conn){ 3597d8e8f12aSMatthias Ringwald log_info("gap_connect: no connection exists yet, creating context"); 35982e77e513S[email protected] conn = create_connection_for_bd_addr_and_type(addr, addr_type); 35994f3229d8S[email protected] if (!conn){ 36004f3229d8S[email protected] // notify client that alloc failed 36016e2e9a6bS[email protected] hci_emit_le_connection_complete(addr_type, addr, 0, BTSTACK_MEMORY_ALLOC_FAILED); 3602d8e8f12aSMatthias Ringwald log_info("gap_connect: failed to alloc hci_connection_t"); 3603472a5742SMatthias Ringwald return GATT_CLIENT_NOT_CONNECTED; // don't sent packet to controller 36044f3229d8S[email protected] } 36054f3229d8S[email protected] conn->state = SEND_CREATE_CONNECTION; 3606d8e8f12aSMatthias Ringwald log_info("gap_connect: send create connection next"); 3607564fca32S[email protected] hci_run(); 3608616edd56SMatthias Ringwald return 0; 36094f3229d8S[email protected] } 36100bf6344aS[email protected] 36110bf6344aS[email protected] if (!hci_is_le_connection(conn) || 36120bf6344aS[email protected] conn->state == SEND_CREATE_CONNECTION || 36130bf6344aS[email protected] conn->state == SENT_CREATE_CONNECTION) { 36142e77e513S[email protected] hci_emit_le_connection_complete(conn->address_type, conn->address, 0, ERROR_CODE_COMMAND_DISALLOWED); 3615d8e8f12aSMatthias Ringwald log_error("gap_connect: classic connection or connect is already being created"); 3616616edd56SMatthias Ringwald return GATT_CLIENT_IN_WRONG_STATE; 36170bf6344aS[email protected] } 36180bf6344aS[email protected] 3619d8e8f12aSMatthias Ringwald log_info("gap_connect: context exists with state %u", conn->state); 36202e77e513S[email protected] hci_emit_le_connection_complete(conn->address_type, conn->address, conn->con_handle, 0); 36214f3229d8S[email protected] hci_run(); 3622616edd56SMatthias Ringwald return 0; 36234f3229d8S[email protected] } 36244f3229d8S[email protected] 36257851196eSmatthias.ringwald // @assumption: only a single outgoing LE Connection exists 3626d8e8f12aSMatthias Ringwald static hci_connection_t * gap_get_outgoing_connection(void){ 3627665d90f2SMatthias Ringwald btstack_linked_item_t *it; 3628665d90f2SMatthias Ringwald for (it = (btstack_linked_item_t *) hci_stack->connections; it ; it = it->next){ 36290bf6344aS[email protected] hci_connection_t * conn = (hci_connection_t *) it; 36300bf6344aS[email protected] if (!hci_is_le_connection(conn)) continue; 36310bf6344aS[email protected] switch (conn->state){ 3632a6725849S[email protected] case SEND_CREATE_CONNECTION: 36337851196eSmatthias.ringwald case SENT_CREATE_CONNECTION: 36347851196eSmatthias.ringwald return conn; 36357851196eSmatthias.ringwald default: 36367851196eSmatthias.ringwald break; 36377851196eSmatthias.ringwald }; 36387851196eSmatthias.ringwald } 36397851196eSmatthias.ringwald return NULL; 36407851196eSmatthias.ringwald } 36417851196eSmatthias.ringwald 3642d8e8f12aSMatthias Ringwald uint8_t gap_connect_cancel(void){ 3643d8e8f12aSMatthias Ringwald hci_connection_t * conn = gap_get_outgoing_connection(); 3644616edd56SMatthias Ringwald if (!conn) return 0; 36457851196eSmatthias.ringwald switch (conn->state){ 36467851196eSmatthias.ringwald case SEND_CREATE_CONNECTION: 36477851196eSmatthias.ringwald // skip sending create connection and emit event instead 36482e77e513S[email protected] hci_emit_le_connection_complete(conn->address_type, conn->address, 0, ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER); 3649665d90f2SMatthias Ringwald btstack_linked_list_remove(&hci_stack->connections, (btstack_linked_item_t *) conn); 36507851196eSmatthias.ringwald btstack_memory_hci_connection_free( conn ); 36510bf6344aS[email protected] break; 3652a6725849S[email protected] case SENT_CREATE_CONNECTION: 36537851196eSmatthias.ringwald // request to send cancel connection 36540bf6344aS[email protected] conn->state = SEND_CANCEL_CONNECTION; 36550bf6344aS[email protected] hci_run(); 36560bf6344aS[email protected] break; 36570bf6344aS[email protected] default: 36580bf6344aS[email protected] break; 36590bf6344aS[email protected] } 3660616edd56SMatthias Ringwald return 0; 3661e31f89a7S[email protected] } 3662d70217a2SMatthias Ringwald #endif 36634f3229d8S[email protected] 3664c37a3166S[email protected] /** 3665c37a3166S[email protected] * @brief Updates the connection parameters for a given LE connection 3666c37a3166S[email protected] * @param handle 3667c37a3166S[email protected] * @param conn_interval_min (unit: 1.25ms) 3668c37a3166S[email protected] * @param conn_interval_max (unit: 1.25ms) 3669c37a3166S[email protected] * @param conn_latency 3670c37a3166S[email protected] * @param supervision_timeout (unit: 10ms) 3671c37a3166S[email protected] * @returns 0 if ok 3672c37a3166S[email protected] */ 3673c37a3166S[email protected] int gap_update_connection_parameters(hci_con_handle_t con_handle, uint16_t conn_interval_min, 3674c37a3166S[email protected] uint16_t conn_interval_max, uint16_t conn_latency, uint16_t supervision_timeout){ 3675c37a3166S[email protected] hci_connection_t * connection = hci_connection_for_handle(con_handle); 3676c37a3166S[email protected] if (!connection) return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 3677c37a3166S[email protected] connection->le_conn_interval_min = conn_interval_min; 3678c37a3166S[email protected] connection->le_conn_interval_max = conn_interval_max; 3679c37a3166S[email protected] connection->le_conn_latency = conn_latency; 3680c37a3166S[email protected] connection->le_supervision_timeout = supervision_timeout; 368184cf6d83SMatthias Ringwald connection->le_con_parameter_update_state = CON_PARAMETER_UPDATE_CHANGE_HCI_CON_PARAMETERS; 3682cfc59f1bSMatthias Ringwald hci_run(); 3683c37a3166S[email protected] return 0; 3684c37a3166S[email protected] } 3685c37a3166S[email protected] 368645c102fdSMatthias Ringwald /** 3687b68d7bc3SMatthias Ringwald * @brief Request an update of the connection parameter for a given LE connection 3688b68d7bc3SMatthias Ringwald * @param handle 3689b68d7bc3SMatthias Ringwald * @param conn_interval_min (unit: 1.25ms) 3690b68d7bc3SMatthias Ringwald * @param conn_interval_max (unit: 1.25ms) 3691b68d7bc3SMatthias Ringwald * @param conn_latency 3692b68d7bc3SMatthias Ringwald * @param supervision_timeout (unit: 10ms) 3693b68d7bc3SMatthias Ringwald * @returns 0 if ok 3694b68d7bc3SMatthias Ringwald */ 3695b68d7bc3SMatthias Ringwald int gap_request_connection_parameter_update(hci_con_handle_t con_handle, uint16_t conn_interval_min, 3696b68d7bc3SMatthias Ringwald uint16_t conn_interval_max, uint16_t conn_latency, uint16_t supervision_timeout){ 3697b68d7bc3SMatthias Ringwald hci_connection_t * connection = hci_connection_for_handle(con_handle); 3698b68d7bc3SMatthias Ringwald if (!connection) return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 3699b68d7bc3SMatthias Ringwald connection->le_conn_interval_min = conn_interval_min; 3700b68d7bc3SMatthias Ringwald connection->le_conn_interval_max = conn_interval_max; 3701b68d7bc3SMatthias Ringwald connection->le_conn_latency = conn_latency; 3702b68d7bc3SMatthias Ringwald connection->le_supervision_timeout = supervision_timeout; 3703b68d7bc3SMatthias Ringwald connection->le_con_parameter_update_state = CON_PARAMETER_UPDATE_SEND_REQUEST; 3704b68d7bc3SMatthias Ringwald hci_run(); 3705b68d7bc3SMatthias Ringwald return 0; 3706b68d7bc3SMatthias Ringwald } 3707b68d7bc3SMatthias Ringwald 3708d70217a2SMatthias Ringwald #ifdef ENABLE_LE_PERIPHERAL 3709d70217a2SMatthias Ringwald 3710501f56b3SMatthias Ringwald static void gap_advertisments_changed(void){ 3711501f56b3SMatthias Ringwald // disable advertisements before updating adv, scan data, or adv params 3712501f56b3SMatthias Ringwald if (hci_stack->le_advertisements_active){ 3713501f56b3SMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_DISABLE | LE_ADVERTISEMENT_TASKS_ENABLE; 3714501f56b3SMatthias Ringwald } 3715501f56b3SMatthias Ringwald hci_run(); 3716501f56b3SMatthias Ringwald } 3717501f56b3SMatthias Ringwald 3718b68d7bc3SMatthias Ringwald /** 371945c102fdSMatthias Ringwald * @brief Set Advertisement Data 372045c102fdSMatthias Ringwald * @param advertising_data_length 372145c102fdSMatthias Ringwald * @param advertising_data (max 31 octets) 372245c102fdSMatthias Ringwald * @note data is not copied, pointer has to stay valid 372345c102fdSMatthias Ringwald */ 372445c102fdSMatthias Ringwald void gap_advertisements_set_data(uint8_t advertising_data_length, uint8_t * advertising_data){ 372545c102fdSMatthias Ringwald hci_stack->le_advertisements_data_len = advertising_data_length; 372645c102fdSMatthias Ringwald hci_stack->le_advertisements_data = advertising_data; 3727501f56b3SMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_SET_ADV_DATA; 3728501f56b3SMatthias Ringwald gap_advertisments_changed(); 372945c102fdSMatthias Ringwald } 3730501f56b3SMatthias Ringwald 3731501f56b3SMatthias Ringwald /** 3732501f56b3SMatthias Ringwald * @brief Set Scan Response Data 3733501f56b3SMatthias Ringwald * @param advertising_data_length 3734501f56b3SMatthias Ringwald * @param advertising_data (max 31 octets) 3735501f56b3SMatthias Ringwald * @note data is not copied, pointer has to stay valid 3736501f56b3SMatthias Ringwald */ 3737501f56b3SMatthias Ringwald void gap_scan_response_set_data(uint8_t scan_response_data_length, uint8_t * scan_response_data){ 3738501f56b3SMatthias Ringwald hci_stack->le_scan_response_data_len = scan_response_data_length; 3739501f56b3SMatthias Ringwald hci_stack->le_scan_response_data = scan_response_data; 3740501f56b3SMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_SET_SCAN_DATA; 3741501f56b3SMatthias Ringwald gap_advertisments_changed(); 374245c102fdSMatthias Ringwald } 374345c102fdSMatthias Ringwald 374445c102fdSMatthias Ringwald /** 374545c102fdSMatthias Ringwald * @brief Set Advertisement Parameters 374645c102fdSMatthias Ringwald * @param adv_int_min 374745c102fdSMatthias Ringwald * @param adv_int_max 374845c102fdSMatthias Ringwald * @param adv_type 374945c102fdSMatthias Ringwald * @param direct_address_type 375045c102fdSMatthias Ringwald * @param direct_address 375145c102fdSMatthias Ringwald * @param channel_map 375245c102fdSMatthias Ringwald * @param filter_policy 375345c102fdSMatthias Ringwald * 375445c102fdSMatthias Ringwald * @note internal use. use gap_advertisements_set_params from gap_le.h instead. 375545c102fdSMatthias Ringwald */ 375645c102fdSMatthias Ringwald void hci_le_advertisements_set_params(uint16_t adv_int_min, uint16_t adv_int_max, uint8_t adv_type, 3757b95a5a35SMatthias Ringwald uint8_t direct_address_typ, bd_addr_t direct_address, 375845c102fdSMatthias Ringwald uint8_t channel_map, uint8_t filter_policy) { 375945c102fdSMatthias Ringwald 376045c102fdSMatthias Ringwald hci_stack->le_advertisements_interval_min = adv_int_min; 376145c102fdSMatthias Ringwald hci_stack->le_advertisements_interval_max = adv_int_max; 376245c102fdSMatthias Ringwald hci_stack->le_advertisements_type = adv_type; 376345c102fdSMatthias Ringwald hci_stack->le_advertisements_direct_address_type = direct_address_typ; 376445c102fdSMatthias Ringwald hci_stack->le_advertisements_channel_map = channel_map; 376545c102fdSMatthias Ringwald hci_stack->le_advertisements_filter_policy = filter_policy; 376645c102fdSMatthias Ringwald memcpy(hci_stack->le_advertisements_direct_address, direct_address, 6); 376745c102fdSMatthias Ringwald 376845c102fdSMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_SET_PARAMS; 3769501f56b3SMatthias Ringwald gap_advertisments_changed(); 377045c102fdSMatthias Ringwald } 377145c102fdSMatthias Ringwald 377245c102fdSMatthias Ringwald /** 377345c102fdSMatthias Ringwald * @brief Enable/Disable Advertisements 377445c102fdSMatthias Ringwald * @param enabled 377545c102fdSMatthias Ringwald */ 377645c102fdSMatthias Ringwald void gap_advertisements_enable(int enabled){ 377745c102fdSMatthias Ringwald hci_stack->le_advertisements_enabled = enabled; 377845c102fdSMatthias Ringwald if (enabled && !hci_stack->le_advertisements_active){ 377945c102fdSMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_ENABLE; 378045c102fdSMatthias Ringwald } 378145c102fdSMatthias Ringwald if (!enabled && hci_stack->le_advertisements_active){ 378245c102fdSMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_DISABLE; 378345c102fdSMatthias Ringwald } 3784cfc59f1bSMatthias Ringwald hci_run(); 378545c102fdSMatthias Ringwald } 378645c102fdSMatthias Ringwald 378735454696SMatthias Ringwald #endif 378806e5cf96SMatthias Ringwald 378906e5cf96SMatthias Ringwald void hci_le_set_own_address_type(uint8_t own_address_type){ 379006e5cf96SMatthias Ringwald log_info("hci_le_set_own_address_type: old %u, new %u", hci_stack->le_own_addr_type, own_address_type); 379106e5cf96SMatthias Ringwald if (own_address_type == hci_stack->le_own_addr_type) return; 379206e5cf96SMatthias Ringwald hci_stack->le_own_addr_type = own_address_type; 379306e5cf96SMatthias Ringwald 379464068776SMatthias Ringwald #ifdef ENABLE_LE_PERIPHERAL 379506e5cf96SMatthias Ringwald // update advertisement parameters, too 379606e5cf96SMatthias Ringwald hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_SET_PARAMS; 379706e5cf96SMatthias Ringwald gap_advertisments_changed(); 379864068776SMatthias Ringwald #endif 379964068776SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 380006e5cf96SMatthias Ringwald // note: we don't update scan parameters or modify ongoing connection attempts 380164068776SMatthias Ringwald #endif 380206e5cf96SMatthias Ringwald } 380306e5cf96SMatthias Ringwald 3804d70217a2SMatthias Ringwald #endif 380545c102fdSMatthias Ringwald 3806616edd56SMatthias Ringwald uint8_t gap_disconnect(hci_con_handle_t handle){ 38075917a5c5S[email protected] hci_connection_t * conn = hci_connection_for_handle(handle); 38085917a5c5S[email protected] if (!conn){ 38097851196eSmatthias.ringwald hci_emit_disconnection_complete(handle, 0); 3810616edd56SMatthias Ringwald return 0; 38115917a5c5S[email protected] } 38125917a5c5S[email protected] conn->state = SEND_DISCONNECT; 38135917a5c5S[email protected] hci_run(); 3814616edd56SMatthias Ringwald return 0; 38154f3229d8S[email protected] } 381604a6ef8cSmatthias.ringwald 3817a1bf5ae7SMatthias Ringwald /** 3818a1bf5ae7SMatthias Ringwald * @brief Get connection type 3819a1bf5ae7SMatthias Ringwald * @param con_handle 3820a1bf5ae7SMatthias Ringwald * @result connection_type 3821a1bf5ae7SMatthias Ringwald */ 3822a1bf5ae7SMatthias Ringwald gap_connection_type_t gap_get_connection_type(hci_con_handle_t connection_handle){ 3823a1bf5ae7SMatthias Ringwald hci_connection_t * conn = hci_connection_for_handle(connection_handle); 3824a1bf5ae7SMatthias Ringwald if (!conn) return GAP_CONNECTION_INVALID; 3825a1bf5ae7SMatthias Ringwald switch (conn->address_type){ 3826a1bf5ae7SMatthias Ringwald case BD_ADDR_TYPE_LE_PUBLIC: 3827a1bf5ae7SMatthias Ringwald case BD_ADDR_TYPE_LE_RANDOM: 3828a1bf5ae7SMatthias Ringwald return GAP_CONNECTION_LE; 3829a1bf5ae7SMatthias Ringwald case BD_ADDR_TYPE_SCO: 3830a1bf5ae7SMatthias Ringwald return GAP_CONNECTION_SCO; 3831a1bf5ae7SMatthias Ringwald case BD_ADDR_TYPE_CLASSIC: 3832a1bf5ae7SMatthias Ringwald return GAP_CONNECTION_ACL; 3833a1bf5ae7SMatthias Ringwald default: 3834a1bf5ae7SMatthias Ringwald return GAP_CONNECTION_INVALID; 3835a1bf5ae7SMatthias Ringwald } 3836a1bf5ae7SMatthias Ringwald } 3837a1bf5ae7SMatthias Ringwald 3838a9a4c409SMatthias Ringwald #ifdef ENABLE_BLE 38394f551432SMatthias Ringwald 3840d70217a2SMatthias Ringwald #ifdef ENABLE_LE_CENTRAL 3841d23838ecSMatthias Ringwald /** 3842ac9c45e0SMatthias Ringwald * @brief Auto Connection Establishment - Start Connecting to device 3843ac9c45e0SMatthias Ringwald * @param address_typ 3844ac9c45e0SMatthias Ringwald * @param address 3845ac9c45e0SMatthias Ringwald * @returns 0 if ok 3846ac9c45e0SMatthias Ringwald */ 38474f551432SMatthias Ringwald int gap_auto_connection_start(bd_addr_type_t address_type, bd_addr_t address){ 3848e83201bcSMatthias Ringwald // check capacity 3849665d90f2SMatthias Ringwald int num_entries = btstack_linked_list_count(&hci_stack->le_whitelist); 385091915b0bSMatthias Ringwald if (num_entries >= hci_stack->le_whitelist_capacity) return ERROR_CODE_MEMORY_CAPACITY_EXCEEDED; 3851e83201bcSMatthias Ringwald whitelist_entry_t * entry = btstack_memory_whitelist_entry_get(); 3852e83201bcSMatthias Ringwald if (!entry) return BTSTACK_MEMORY_ALLOC_FAILED; 3853e83201bcSMatthias Ringwald entry->address_type = address_type; 3854e83201bcSMatthias Ringwald memcpy(entry->address, address, 6); 3855e83201bcSMatthias Ringwald entry->state = LE_WHITELIST_ADD_TO_CONTROLLER; 3856665d90f2SMatthias Ringwald btstack_linked_list_add(&hci_stack->le_whitelist, (btstack_linked_item_t*) entry); 3857e83201bcSMatthias Ringwald hci_run(); 3858e83201bcSMatthias Ringwald return 0; 3859ac9c45e0SMatthias Ringwald } 3860ac9c45e0SMatthias Ringwald 386142ff5ba1SMatthias Ringwald static void hci_remove_from_whitelist(bd_addr_type_t address_type, bd_addr_t address){ 3862665d90f2SMatthias Ringwald btstack_linked_list_iterator_t it; 3863665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(&it, &hci_stack->le_whitelist); 3864665d90f2SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&it)){ 3865665d90f2SMatthias Ringwald whitelist_entry_t * entry = (whitelist_entry_t*) btstack_linked_list_iterator_next(&it); 3866e83201bcSMatthias Ringwald if (entry->address_type != address_type) continue; 3867e83201bcSMatthias Ringwald if (memcmp(entry->address, address, 6) != 0) continue; 3868e83201bcSMatthias Ringwald if (entry->state & LE_WHITELIST_ON_CONTROLLER){ 3869e83201bcSMatthias Ringwald // remove from controller if already present 3870e83201bcSMatthias Ringwald entry->state |= LE_WHITELIST_REMOVE_FROM_CONTROLLER; 3871e83201bcSMatthias Ringwald continue; 3872e83201bcSMatthias Ringwald } 3873e83201bcSMatthias Ringwald // direclty remove entry from whitelist 3874665d90f2SMatthias Ringwald btstack_linked_list_iterator_remove(&it); 3875e83201bcSMatthias Ringwald btstack_memory_whitelist_entry_free(entry); 3876e83201bcSMatthias Ringwald } 387742ff5ba1SMatthias Ringwald } 387842ff5ba1SMatthias Ringwald 387942ff5ba1SMatthias Ringwald /** 388042ff5ba1SMatthias Ringwald * @brief Auto Connection Establishment - Stop Connecting to device 388142ff5ba1SMatthias Ringwald * @param address_typ 388242ff5ba1SMatthias Ringwald * @param address 388342ff5ba1SMatthias Ringwald * @returns 0 if ok 388442ff5ba1SMatthias Ringwald */ 388542ff5ba1SMatthias Ringwald int gap_auto_connection_stop(bd_addr_type_t address_type, bd_addr_t address){ 388642ff5ba1SMatthias Ringwald hci_remove_from_whitelist(address_type, address); 3887e83201bcSMatthias Ringwald hci_run(); 3888e83201bcSMatthias Ringwald return 0; 3889ac9c45e0SMatthias Ringwald } 3890ac9c45e0SMatthias Ringwald 3891ac9c45e0SMatthias Ringwald /** 3892ac9c45e0SMatthias Ringwald * @brief Auto Connection Establishment - Stop everything 3893ac9c45e0SMatthias Ringwald * @note Convenience function to stop all active auto connection attempts 3894ac9c45e0SMatthias Ringwald */ 3895ac9c45e0SMatthias Ringwald void gap_auto_connection_stop_all(void){ 3896665d90f2SMatthias Ringwald btstack_linked_list_iterator_t it; 3897665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(&it, &hci_stack->le_whitelist); 3898665d90f2SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&it)){ 3899665d90f2SMatthias Ringwald whitelist_entry_t * entry = (whitelist_entry_t*) btstack_linked_list_iterator_next(&it); 3900e83201bcSMatthias Ringwald if (entry->state & LE_WHITELIST_ON_CONTROLLER){ 3901e83201bcSMatthias Ringwald // remove from controller if already present 3902e83201bcSMatthias Ringwald entry->state |= LE_WHITELIST_REMOVE_FROM_CONTROLLER; 3903e83201bcSMatthias Ringwald continue; 3904e83201bcSMatthias Ringwald } 390591915b0bSMatthias Ringwald // directly remove entry from whitelist 3906665d90f2SMatthias Ringwald btstack_linked_list_iterator_remove(&it); 3907e83201bcSMatthias Ringwald btstack_memory_whitelist_entry_free(entry); 3908e83201bcSMatthias Ringwald } 3909e83201bcSMatthias Ringwald hci_run(); 3910ac9c45e0SMatthias Ringwald } 3911d70217a2SMatthias Ringwald #endif 39124f551432SMatthias Ringwald #endif 39134f551432SMatthias Ringwald 391435454696SMatthias Ringwald #ifdef ENABLE_CLASSIC 3915ac9c45e0SMatthias Ringwald /** 3916ff00ed1cSMatthias Ringwald * @brief Set Extended Inquiry Response data 3917ff00ed1cSMatthias Ringwald * @param eir_data size 240 bytes, is not copied make sure memory is accessible during stack startup 3918ff00ed1cSMatthias Ringwald * @note has to be done before stack starts up 3919ff00ed1cSMatthias Ringwald */ 3920ff00ed1cSMatthias Ringwald void gap_set_extended_inquiry_response(const uint8_t * data){ 3921ff00ed1cSMatthias Ringwald hci_stack->eir_data = data; 3922ff00ed1cSMatthias Ringwald } 3923ff00ed1cSMatthias Ringwald 3924ff00ed1cSMatthias Ringwald /** 3925f6858d14SMatthias Ringwald * @brief Set inquiry mode: standard, with RSSI, with RSSI + Extended Inquiry Results. Has to be called before power on. 3926f6858d14SMatthias Ringwald * @param inquriy_mode see bluetooth_defines.h 3927f6858d14SMatthias Ringwald */ 3928f6858d14SMatthias Ringwald void hci_set_inquiry_mode(inquiry_mode_t mode){ 3929f6858d14SMatthias Ringwald hci_stack->inquiry_mode = mode; 3930f6858d14SMatthias Ringwald } 3931f6858d14SMatthias Ringwald 3932f6858d14SMatthias Ringwald /** 3933d950d659SMatthias Ringwald * @brief Configure Voice Setting for use with SCO data in HSP/HFP 3934d950d659SMatthias Ringwald */ 3935d950d659SMatthias Ringwald void hci_set_sco_voice_setting(uint16_t voice_setting){ 3936d950d659SMatthias Ringwald hci_stack->sco_voice_setting = voice_setting; 3937d950d659SMatthias Ringwald } 3938d950d659SMatthias Ringwald 3939d950d659SMatthias Ringwald /** 3940d950d659SMatthias Ringwald * @brief Get SCO Voice Setting 3941d950d659SMatthias Ringwald * @return current voice setting 3942d950d659SMatthias Ringwald */ 39430cb5b971SMatthias Ringwald uint16_t hci_get_sco_voice_setting(void){ 3944d950d659SMatthias Ringwald return hci_stack->sco_voice_setting; 3945d950d659SMatthias Ringwald } 3946d950d659SMatthias Ringwald 3947b3aad8daSMatthias Ringwald /** @brief Get SCO packet length for current SCO Voice setting 3948b3aad8daSMatthias Ringwald * @note Using SCO packets of the exact length is required for USB transfer 3949b3aad8daSMatthias Ringwald * @return Length of SCO packets in bytes (not audio frames) 3950b3aad8daSMatthias Ringwald */ 3951b3aad8daSMatthias Ringwald int hci_get_sco_packet_length(void){ 3952b3aad8daSMatthias Ringwald // see Core Spec for H2 USB Transfer. 3953b3aad8daSMatthias Ringwald if (hci_stack->sco_voice_setting & 0x0020) return 51; 3954b3aad8daSMatthias Ringwald return 27; 3955b3aad8daSMatthias Ringwald } 395635454696SMatthias Ringwald #endif 3957b3aad8daSMatthias Ringwald 3958d950d659SMatthias Ringwald /** 3959d23838ecSMatthias Ringwald * @brief Set callback for Bluetooth Hardware Error 3960d23838ecSMatthias Ringwald */ 3961c2e1fa60SMatthias Ringwald void hci_set_hardware_error_callback(void (*fn)(uint8_t error)){ 3962d23838ecSMatthias Ringwald hci_stack->hardware_error_callback = fn; 3963d23838ecSMatthias Ringwald } 3964d23838ecSMatthias Ringwald 396571de195eSMatthias Ringwald void hci_disconnect_all(void){ 3966665d90f2SMatthias Ringwald btstack_linked_list_iterator_t it; 3967665d90f2SMatthias Ringwald btstack_linked_list_iterator_init(&it, &hci_stack->connections); 3968665d90f2SMatthias Ringwald while (btstack_linked_list_iterator_has_next(&it)){ 3969665d90f2SMatthias Ringwald hci_connection_t * con = (hci_connection_t*) btstack_linked_list_iterator_next(&it); 397004a6ef8cSmatthias.ringwald if (con->state == SENT_DISCONNECT) continue; 397104a6ef8cSmatthias.ringwald con->state = SEND_DISCONNECT; 397204a6ef8cSmatthias.ringwald } 3973d31fba26S[email protected] hci_run(); 397404a6ef8cSmatthias.ringwald } 397533373e40SMatthias Ringwald 397633373e40SMatthias Ringwald uint16_t hci_get_manufacturer(void){ 397733373e40SMatthias Ringwald return hci_stack->manufacturer; 397833373e40SMatthias Ringwald } 3979