/* * Copyright (C) 2014 BlueKitchen GmbH * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holders nor the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * 4. Any redistribution, use, or modification is done solely for * personal benefit and not for any commercial purpose or for * monetary gain. * * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Please inquire about commercial licensing options at * contact@bluekitchen-gmbh.com * */ // ***************************************************************************** /* EXAMPLE_START(ble_peripheral): LE Data Channel Test * */ // ***************************************************************************** #include #include #include #include #include #include "btstack_config.h" #include "ble/le_device_db.h" #include "ble/sm.h" #include "btstack_debug.h" #include "btstack_event.h" #include "btstack_memory.h" #include "btstack_run_loop.h" #include "gap.h" #include "hci.h" #include "hci_dump.h" #include "l2cap.h" #include "btstack_stdin.h" static void show_usage(void); static btstack_packet_callback_registration_t hci_event_callback_registration; static btstack_packet_callback_registration_t sm_event_callback_registration; // static bd_addr_t pts_address = { 0x00, 0x1a, 0x7d, 0xda, 0x71, 0x0a}; static bd_addr_t pts_address = { 0x00, 0x1b, 0xdc, 0x08, 0x0a, 0xa5}; static int pts_address_type = 0; static int master_addr_type = 0; static hci_con_handle_t handle_le; static hci_con_handle_t handle_classic; static uint32_t ui_passkey; static int ui_digits_for_passkey; // general discoverable flags static uint8_t adv_general_discoverable[] = { 2, 01, 02 }; const uint16_t TSPX_psm = 0x01; const uint16_t TSPX_le_psm = 0x25; const uint16_t TSPX_psm_unsupported = 0xf1; static uint16_t initial_credits = L2CAP_LE_AUTOMATIC_CREDITS; const char * data_short = "a"; const char * data_long = "0123456789abcdefghijklmnopqrstuvwxyz"; const char * data_classic = "ABCDEF"; static int todo_send_short; static int todo_send_long; static uint8_t buffer_x[1000]; static uint16_t cid_le; static uint16_t cid_classic; uint8_t receive_buffer_X[100]; static void gap_run(void){ } static void app_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ bd_addr_t event_address; uint16_t psm; uint16_t cid; hci_con_handle_t handle; switch (packet_type) { case L2CAP_DATA_PACKET: printf("L2CAP data cid 0x%02x: ", channel); printf_hexdump(packet, size); break; case HCI_EVENT_PACKET: switch (packet[0]) { case BTSTACK_EVENT_STATE: // bt stack activated, get started if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){ show_usage(); } break; case HCI_EVENT_LE_META: switch (hci_event_le_meta_get_subevent_code(packet)) { case HCI_SUBEVENT_LE_CONNECTION_COMPLETE: handle_le = little_endian_read_16(packet, 4); printf("HCI: LE Connection Complete, connection handle 0x%04x\n", handle_le); break; default: break; } break; case HCI_EVENT_CONNECTION_COMPLETE: handle_classic = little_endian_read_16(packet, 3); printf("HCI: ACL Connection Complete, connection handle 0x%04x\n", handle_classic); break; case HCI_EVENT_DISCONNECTION_COMPLETE: break; // Classic case L2CAP_EVENT_INCOMING_CONNECTION: psm = l2cap_event_incoming_connection_get_psm(packet); cid = l2cap_event_incoming_connection_get_local_cid(packet); if (psm != TSPX_psm) break; printf("L2CAP: Accepting incoming Classic connection request for 0x%02x, PSM %02x\n", cid, psm); l2cap_accept_connection(cid); break; case L2CAP_EVENT_CHANNEL_OPENED: // inform about new l2cap connection l2cap_event_channel_opened_get_address(packet, event_address); psm = l2cap_event_channel_opened_get_psm(packet); cid = l2cap_event_channel_opened_get_local_cid(packet); handle = l2cap_event_channel_opened_get_handle(packet); if (packet[2] == 0) { printf("L2CAP: Classic Channel successfully opened: %s, handle 0x%02x, psm 0x%02x, local cid 0x%02x, remote cid 0x%02x\n", bd_addr_to_str(event_address), handle, psm, cid, l2cap_event_channel_opened_get_remote_cid(packet)); switch (psm){ case TSPX_le_psm: cid_le = cid; break; case TSPX_psm: cid_classic = cid; break; default: break; } } else { printf("L2CAP: classic connection to device %s failed. status code %u\n", bd_addr_to_str(event_address), packet[2]); } break; case L2CAP_EVENT_CHANNEL_CLOSED: cid = l2cap_event_channel_closed_get_local_cid(packet); printf("L2CAP: Clasic Channel closed 0x%02x\n", cid); break; // LE Data Channels case L2CAP_EVENT_LE_INCOMING_CONNECTION: psm = l2cap_event_le_incoming_connection_get_psm(packet); cid = l2cap_event_le_incoming_connection_get_local_cid(packet); if (psm != TSPX_le_psm) break; printf("L2CAP: Accepting incoming LE connection request for 0x%02x, PSM %02x\n", cid, psm); l2cap_le_accept_connection(cid, receive_buffer_X, sizeof(receive_buffer_X), initial_credits); break; case L2CAP_EVENT_LE_CHANNEL_OPENED: // inform about new l2cap connection l2cap_event_le_channel_opened_get_address(packet, event_address); psm = l2cap_event_le_channel_opened_get_psm(packet); cid = l2cap_event_le_channel_opened_get_local_cid(packet); handle = l2cap_event_le_channel_opened_get_handle(packet); if (packet[2] == 0) { printf("L2CAP: LE Data Channel successfully opened: %s, handle 0x%02x, psm 0x%02x, local cid 0x%02x, remote cid 0x%02x\n", bd_addr_to_str(event_address), handle, psm, cid, little_endian_read_16(packet, 15)); switch (psm){ case TSPX_le_psm: cid_le = cid; break; case TSPX_psm: cid_classic = cid; break; default: break; } } else { printf("L2CAP: LE Data Channel connection to device %s failed. status code %u\n", bd_addr_to_str(event_address), packet[2]); } break; case L2CAP_EVENT_LE_CAN_SEND_NOW: if (todo_send_short){ todo_send_short = 0; l2cap_le_send_data(cid_le, (uint8_t *) data_short, strlen(data_short)); break; } if (todo_send_long){ todo_send_long = 0; l2cap_le_send_data(cid_le, (uint8_t *) data_long, strlen(data_long)); } break; case L2CAP_EVENT_LE_CHANNEL_CLOSED: cid = l2cap_event_le_channel_closed_get_local_cid(packet); printf("L2CAP: LE Data Channel closed 0x%02x\n", cid); break; case L2CAP_EVENT_LE_PACKET_SENT: cid = l2cap_event_le_packet_sent_get_local_cid(packet); printf("L2CAP: LE Data Channel Packet sent0x%02x\n", cid); break; case SM_EVENT_JUST_WORKS_REQUEST: printf("SM_EVENT_JUST_WORKS_REQUEST\n"); sm_just_works_confirm(little_endian_read_16(packet, 2)); break; case SM_EVENT_PASSKEY_INPUT_NUMBER: // display number master_addr_type = packet[4]; reverse_bd_addr(&packet[5], event_address); printf("\nGAP Bonding %s (%u): Enter 6 digit passkey: '", bd_addr_to_str(pts_address), master_addr_type); fflush(stdout); ui_passkey = 0; ui_digits_for_passkey = 6; break; case SM_EVENT_PASSKEY_DISPLAY_NUMBER: // display number printf("\nGAP Bonding %s (%u): Display Passkey '%06u\n", bd_addr_to_str(pts_address), master_addr_type, little_endian_read_32(packet, 11)); break; case SM_EVENT_PASSKEY_DISPLAY_CANCEL: printf("\nGAP Bonding %s (%u): Display cancel\n", bd_addr_to_str(pts_address), master_addr_type); break; case SM_EVENT_AUTHORIZATION_REQUEST: // auto-authorize connection if requested sm_authorization_grant(little_endian_read_16(packet, 2)); break; default: break; } } gap_run(); } void show_usage(void){ bd_addr_t iut_address; uint8_t uit_addr_type; gap_le_get_own_address(&uit_addr_type, iut_address); printf("\n--- CLI for LE Data Channel %s ---\n", bd_addr_to_str(iut_address)); printf("a - create HCI connection to type %u address %s\n", pts_address_type, bd_addr_to_str(pts_address)); printf("b - connect to PSM 0x%02x (TSPX_le_psm - LE)\n", TSPX_le_psm); printf("B - connect to PSM 0x%02x (TSPX_psm_unsupported - LE)\n", TSPX_psm_unsupported); printf("c - send 10 credits\n"); printf("m - enable manual credit managment (incoming connections only)\n"); printf("s - send short data %s\n", data_short); printf("S - send long data %s\n", data_long); printf("y - connect to address %s PSM 0x%02x (TSPX_psm - Classic)\n", bd_addr_to_str(pts_address), TSPX_psm); printf("z - send classic data Classic %s\n", data_classic); printf("t - disconnect channel\n"); printf("---\n"); printf("Ctrl-c - exit\n"); printf("---\n"); } static void stdin_process(char buffer){ // passkey input if (ui_digits_for_passkey){ if (buffer < '0' || buffer > '9') return; printf("%c", buffer); fflush(stdout); ui_passkey = ui_passkey * 10 + buffer - '0'; ui_digits_for_passkey--; if (ui_digits_for_passkey == 0){ printf("\nSending Passkey '%06x'\n", ui_passkey); sm_passkey_input(handle_le, ui_passkey); } return; } switch (buffer){ case 'a': printf("Direct Connection Establishment to type %u, addr %s\n", pts_address_type, bd_addr_to_str(pts_address)); gap_advertisements_enable(0); // controller with single role cannot create connection while advertising gap_connect(pts_address, pts_address_type); break; case 'b': printf("Connect to PSM 0x%02x - LE\n", TSPX_le_psm); l2cap_le_create_channel(&app_packet_handler, handle_le, TSPX_le_psm, buffer_x, sizeof(buffer_x), L2CAP_LE_AUTOMATIC_CREDITS, LEVEL_0, &cid_le); break; case 'A': printf("Creating connection to %s 0x%02x - LE\n", bd_addr_to_str(pts_address), TSPX_psm_unsupported); l2cap_le_create_channel(&app_packet_handler, handle_le, TSPX_psm_unsupported, buffer_x, sizeof(buffer_x), L2CAP_LE_AUTOMATIC_CREDITS, LEVEL_0, &cid_le); break; case 'c': printf("Provide 10 credits\n"); l2cap_le_provide_credits(cid_le, 10); break; case 'm': printf("Enable manual credit management for incoming connections\n"); initial_credits = 5; break; case 's': printf("Send L2CAP Data Short %s\n", data_short); todo_send_short = 1; l2cap_le_request_can_send_now_event(cid_le); break; case 'S': printf("Send L2CAP Data Long %s\n", data_long); todo_send_long = 1; l2cap_le_request_can_send_now_event(cid_le); break; case 'y': printf("Creating connection to %s 0x%02x - Classic\n", bd_addr_to_str(pts_address), TSPX_psm); l2cap_create_channel(&app_packet_handler, pts_address, TSPX_psm, 100, &cid_classic); break; case 'z': printf("Send L2CAP Data Classic %s\n", data_classic); l2cap_send(cid_classic, (uint8_t *) data_classic, strlen(data_classic)); break; case 't': printf("Disconnect channel 0x%02x\n", cid_le); l2cap_le_disconnect(cid_le); break; default: show_usage(); break; } return; } int btstack_main(int argc, const char * argv[]); int btstack_main(int argc, const char * argv[]){ (void)argc; (void)argv; printf("BTstack LE Data Channel test starting up...\n"); // register for HCI events hci_event_callback_registration.callback = &app_packet_handler; hci_add_event_handler(&hci_event_callback_registration); hci_disable_l2cap_timeout_check(); // set up l2cap_le l2cap_init(); // setup le device db le_device_db_init(); // setup SM: Display only sm_init(); sm_set_io_capabilities(IO_CAPABILITY_DISPLAY_ONLY); sm_set_authentication_requirements( SM_AUTHREQ_BONDING | SM_AUTHREQ_MITM_PROTECTION); sm_event_callback_registration.callback = &app_packet_handler; sm_add_event_handler(&sm_event_callback_registration); btstack_stdin_setup(stdin_process); // gap_random_address_set_update_period(5000); // gap_random_address_set_mode(GAP_RANDOM_ADDRESS_RESOLVABLE); gap_advertisements_set_data(sizeof(adv_general_discoverable), adv_general_discoverable); gap_advertisements_enable(1); sm_set_io_capabilities(IO_CAPABILITY_NO_INPUT_NO_OUTPUT); sm_set_authentication_requirements(0); // le data channel setup l2cap_le_register_service(&app_packet_handler, TSPX_le_psm, LEVEL_0); // classic data channel setup l2cap_register_service(&app_packet_handler, TSPX_psm, 100, LEVEL_0); // turn on! hci_power_control(HCI_POWER_ON); return 0; } /* EXAMPLE_END */