1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 /* 39 * l2cap_server.c 40 * 41 * Created by Matthias Ringwald on 7/14/09. 42 */ 43 44 #include <unistd.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 49 #include "btstack_client.h" 50 #include "btstack_run_loop_posix.h" 51 #include "hci_cmd.h" 52 #include "classic/sdp_util.h" 53 54 int l2cap_reg_fail = 0; 55 56 hci_con_handle_t con_handle; 57 58 uint16_t hid_control = 0; 59 uint16_t hid_interrupt = 0; 60 61 void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 62 63 bd_addr_t event_addr; 64 hci_con_handle_t con_handle; 65 uint16_t psm; 66 uint16_t local_cid; 67 uint16_t remote_cid; 68 char pin[20]; 69 int i; 70 uint8_t status; 71 72 switch (packet_type) { 73 74 case L2CAP_DATA_PACKET: 75 // just dump data for now 76 printf("source cid %x -- ", channel); 77 printf_hexdump( packet, size ); 78 break; 79 80 case HCI_EVENT_PACKET: 81 82 switch (hci_event_packet_get_type(packet)) { 83 84 case BTSTACK_EVENT_POWERON_FAILED: 85 printf("HCI Init failed - make sure you have turned off Bluetooth in the System Settings\n"); 86 exit(1); 87 break; 88 89 case BTSTACK_EVENT_STATE: 90 // bt stack activated, get started 91 if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){ 92 bt_send_cmd(&hci_write_class_of_device, 0x2540); 93 } 94 break; 95 96 case DAEMON_EVENT_L2CAP_SERVICE_REGISTERED: 97 status = packet[2]; 98 psm = little_endian_read_16(packet, 3); 99 printf("DAEMON_EVENT_L2CAP_SERVICE_REGISTERED psm: 0x%02x, status: 0x%02x\n", psm, status); 100 if (status) { 101 l2cap_reg_fail = 1; 102 } else { 103 if (psm == PSM_HID_INTERRUPT && !l2cap_reg_fail) { // The second of the two 104 bt_send_cmd(&btstack_set_discoverable, 1); 105 printf("Both PSMs registered.\n"); 106 } 107 } 108 break; 109 110 case L2CAP_EVENT_INCOMING_CONNECTION: 111 l2cap_event_incoming_connection_get_address(packet, event_addr); 112 con_handle = l2cap_event_incoming_connection_get_handle(packet); 113 psm = l2cap_event_incoming_connection_get_psm(packet); 114 local_cid = l2cap_event_incoming_connection_get_local_cid(packet); 115 remote_cid = l2cap_event_incoming_connection_get_remote_cid(packet); 116 printf("L2CAP_EVENT_INCOMING_CONNECTION %s, handle 0x%02x, psm 0x%02x, local cid 0x%02x, remote cid 0x%02x\n", 117 bd_addr_to_str(event_addr), con_handle, psm, local_cid, remote_cid); 118 119 // accept 120 bt_send_cmd(&l2cap_accept_connection_cmd, local_cid); 121 break; 122 123 case HCI_EVENT_LINK_KEY_REQUEST: 124 // link key request 125 hci_event_link_key_request_get_bd_addr(packet, event_addr); 126 bt_send_cmd(&hci_link_key_request_negative_reply, &event_addr); 127 break; 128 129 case HCI_EVENT_PIN_CODE_REQUEST: 130 // inform about pin code request 131 printf("Please enter PIN here: "); 132 fgets(pin, 20, stdin); 133 i = strlen(pin)-1; 134 if( pin[i] == '\n') { 135 pin[i] = '\0'; 136 } 137 printf("PIN = '%s'\n", pin); 138 hci_event_pin_code_request_get_bd_addr(packet, event_addr); 139 bt_send_cmd(&hci_pin_code_request_reply, &event_addr, strlen(pin), pin); 140 break; 141 142 case L2CAP_EVENT_CHANNEL_OPENED: 143 // inform about new l2cap connection 144 l2cap_event_channel_opened_get_address(packet, event_addr); 145 146 if (l2cap_event_channel_opened_get_status(packet)){ 147 printf("L2CAP connection to device %s failed. status code %u\n", 148 bd_addr_to_str(event_addr), l2cap_event_channel_opened_get_status(packet)); 149 exit(1); 150 } 151 psm = l2cap_event_channel_opened_get_psm(packet); 152 local_cid = l2cap_event_channel_opened_get_local_cid(packet); 153 con_handle = l2cap_event_channel_opened_get_handle(packet); 154 155 printf("Channel successfully opened: %s, handle 0x%02x, psm 0x%02x, local cid 0x%02x, remote cid 0x%02x\n", 156 bd_addr_to_str(event_addr), con_handle, psm, local_cid, l2cap_event_channel_opened_get_remote_cid(packet)); 157 158 if (psm == PSM_HID_CONTROL){ 159 hid_control = local_cid; 160 } 161 if (psm == PSM_HID_INTERRUPT){ 162 hid_interrupt = local_cid; 163 } 164 if (hid_control && hid_interrupt){ 165 bt_send_cmd(&hci_switch_role_command, &event_addr, 0); 166 } 167 break; 168 169 case HCI_EVENT_ROLE_CHANGE: { 170 //HID Control: 0x06 bytes - SET_FEATURE_REPORT [ 53 F4 42 03 00 00 ] 171 uint8_t set_feature_report[] = { 0x53, 0xf4, 0x42, 0x03, 0x00, 0x00}; 172 bt_send_l2cap(hid_control, (uint8_t*) &set_feature_report, sizeof(set_feature_report)); 173 break; 174 } 175 176 case HCI_EVENT_DISCONNECTION_COMPLETE: 177 // connection closed -> quit tes app 178 printf("Basebank connection closed\n"); 179 180 // exit(0); 181 break; 182 183 case HCI_EVENT_COMMAND_COMPLETE: 184 if (HCI_EVENT_IS_COMMAND_COMPLETE(packet, hci_write_class_of_device)) { 185 printf("Ready\n"); 186 } 187 default: 188 // other event 189 break; 190 } 191 break; 192 193 default: 194 // other packet type 195 break; 196 } 197 } 198 199 int main (int argc, const char * argv[]){ 200 btstack_run_loop_init(btstack_run_loop_posix_get_instance()); 201 int err = bt_open(); 202 if (err) { 203 printf("Failed to open connection to BTdaemon\n"); 204 return err; 205 } 206 bt_register_packet_handler(packet_handler); 207 bt_send_cmd(&l2cap_register_service_cmd, PSM_HID_CONTROL, 250); 208 bt_send_cmd(&l2cap_register_service_cmd, PSM_HID_INTERRUPT, 250); 209 210 bt_send_cmd(&btstack_set_power_mode, HCI_POWER_ON ); 211 btstack_run_loop_execute(); 212 bt_close(); 213 return 0; 214 } 215