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 * rfcomm.c 40 * 41 * Command line parsing and debug option 42 * added by Vladimir Vyskocil <[email protected]> 43 * 44 */ 45 46 #include <unistd.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <strings.h> 50 #include <errno.h> 51 #include <string.h> 52 #include <fcntl.h> 53 #include <sys/types.h> 54 #include <sys/stat.h> 55 56 #include "btstack_client.h" 57 #include "btstack_run_loop_posix.h" 58 #include "classic/sdp_util.h" 59 60 // input from command line arguments 61 bd_addr_t addr = { }; 62 hci_con_handle_t con_handle; 63 int rfcomm_channel = 1; 64 char pin[17]; 65 66 void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 67 bd_addr_t event_addr; 68 uint16_t mtu; 69 uint16_t rfcomm_channel_id; 70 71 switch (packet_type) { 72 73 case RFCOMM_DATA_PACKET: 74 printf("Received RFCOMM data on channel id %u, size %u\n", channel, size); 75 printf_hexdump(packet, size); 76 break; 77 78 case HCI_EVENT_PACKET: 79 switch (hci_event_packet_get_type(packet)) { 80 81 case BTSTACK_EVENT_POWERON_FAILED: 82 // handle HCI init failure 83 printf("HCI Init failed - make sure you have turned off Bluetooth in the System Settings\n"); 84 exit(1); 85 break; 86 87 case BTSTACK_EVENT_STATE: 88 // bt stack activated, get started 89 if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){ 90 bt_send_cmd(&rfcomm_create_channel_cmd, addr, rfcomm_channel); 91 } 92 break; 93 94 case HCI_EVENT_PIN_CODE_REQUEST: 95 // inform about pin code request 96 printf("Using PIN 0000\n"); 97 hci_event_pin_code_request_get_bd_addr(packet, event_addr); 98 bt_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000"); 99 break; 100 101 case RFCOMM_EVENT_CHANNEL_OPENED: 102 // data: event(8), len(8), status (8), address (48), handle(16), server channel(8), rfcomm_cid(16), max frame size(16) 103 if (packet[2]) { 104 printf("RFCOMM channel open failed, status %u\n", packet[2]); 105 } else { 106 rfcomm_channel_id = little_endian_read_16(packet, 12); 107 mtu = little_endian_read_16(packet, 14); 108 printf("RFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n", rfcomm_channel_id, mtu); 109 } 110 break; 111 112 case HCI_EVENT_DISCONNECTION_COMPLETE: 113 // connection closed -> quit test app 114 printf("Basebank connection closed\n"); 115 break; 116 117 default: 118 break; 119 } 120 break; 121 default: 122 break; 123 } 124 } 125 126 void usage(const char *name){ 127 fprintf(stderr, "Usage : %s [-a|--address aa:bb:cc:dd:ee:ff] [-c|--channel n] [-p|--pin nnnn]\n", name); 128 } 129 130 int main (int argc, const char * argv[]){ 131 132 int arg = 1; 133 134 if (argc == 1){ 135 usage(argv[0]); 136 return 1; } 137 138 while (arg < argc) { 139 if(!strcmp(argv[arg], "-a") || !strcmp(argv[arg], "--address")){ 140 arg++; 141 if(arg >= argc || !sscanf_bd_addr(argv[arg], addr)){ 142 usage(argv[0]); 143 return 1; 144 } 145 } else if (!strcmp(argv[arg], "-c") || !strcmp(argv[arg], "--channel")) { 146 arg++; 147 if(arg >= argc || !sscanf(argv[arg], "%d", &rfcomm_channel)){ 148 usage(argv[0]); 149 return 1; 150 } 151 } else if (!strcmp(argv[arg], "-p") || !strcmp(argv[arg], "--pin")) { 152 arg++; 153 if(arg >= argc) { 154 usage(argv[0]); 155 return 1; 156 } 157 strncpy(pin, argv[arg], 16); 158 pin[16] = 0; 159 } else { 160 usage(argv[0]); 161 return 1; 162 } 163 arg++; 164 } 165 166 btstack_run_loop_init(btstack_run_loop_posix_get_instance()); 167 int err = bt_open(); 168 if (err) { 169 fprintf(stderr,"Failed to open connection to BTdaemon, err %d\n",err); 170 return 1; 171 } 172 bt_register_packet_handler(packet_handler); 173 174 printf("Trying to connect to %s, channel %d\n", bd_addr_to_str(addr), rfcomm_channel); 175 176 bt_send_cmd(&btstack_set_power_mode, HCI_POWER_ON ); 177 btstack_run_loop_execute(); 178 bt_close(); 179 return 0; 180 } 181