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 // ANT + SPP Counter demo for TI CC2567 40 // - it provides a SPP port and and sends a counter every second 41 // - it also listens on ANT channel 33,1,1 42 // ***************************************************************************** 43 44 #include <stdio.h> 45 46 #include "btstack_chipset_cc256x.h" 47 48 #include "btstack.h" 49 #include "ant_cmd.h" 50 51 #define RFCOMM_SERVER_CHANNEL 1 52 #define HEARTBEAT_PERIOD_MS 1000 53 54 static uint8_t rfcomm_channel_nr = 1; 55 static uint16_t rfcomm_channel_id = 0; 56 static uint8_t spp_service_buffer[100]; 57 static btstack_timer_source_t heartbeat; 58 59 static btstack_packet_callback_registration_t hci_event_callback_registration; 60 61 // ant logic 62 static enum { 63 ANT_IDLE, 64 ANT_SEND_RESET, 65 ANT_W4_RESET_COMPLETE, 66 ANT_SEND_ASSIGN_CHANNEL, 67 ANT_W4_ASSIGN_CHANNEL_COMPLETE, 68 ANT_SEND_SET_CHANNEL_ID, 69 ANT_W4_SET_CHANNEL_ID_COMPLETE, 70 ANT_SEND_CHANNEL_OPEN, 71 ANT_W4_CHANNEL_OPEN_COMPLETE, 72 ANT_ACTIVE 73 } ant_state = ANT_IDLE; 74 75 static void ant_run(void){ 76 // check if ANT/HCI command can be sent 77 if (!hci_can_send_command_packet_now()) return; 78 79 // send next command 80 switch(ant_state){ 81 case ANT_SEND_RESET: 82 ant_state = ANT_W4_RESET_COMPLETE; 83 // 1. reset 84 printf("Send ANT Reset\n"); 85 ant_send_cmd(&ant_reset); 86 break; 87 case ANT_SEND_ASSIGN_CHANNEL: 88 ant_state = ANT_W4_ASSIGN_CHANNEL_COMPLETE; 89 // 2. assign channel 90 printf("Send Assign Channel\n"); 91 ant_send_cmd(&ant_assign_channel, 0, 0x00, 0); 92 break; 93 case ANT_SEND_SET_CHANNEL_ID: 94 ant_state = ANT_W4_SET_CHANNEL_ID_COMPLETE; 95 // 3. set channel ID 96 printf("Send Set Channel ID\n"); 97 ant_send_cmd(&ant_channel_id, 0, 33, 1, 1); 98 break; 99 case ANT_SEND_CHANNEL_OPEN: 100 ant_state = ANT_W4_CHANNEL_OPEN_COMPLETE; 101 // 4. open channel 102 printf("Send Channel Open\n"); 103 ant_send_cmd(&ant_open_channel, 0); 104 break; 105 default: 106 break; 107 } 108 } 109 110 // Bluetooth logic 111 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 112 bd_addr_t event_addr; 113 uint8_t rfcomm_channel_nr; 114 uint16_t mtu; 115 116 uint8_t event_code; 117 // uint8_t channel; 118 uint8_t message_id; 119 120 switch (packet_type) { 121 case HCI_EVENT_PACKET: 122 switch (hci_event_packet_get_type(packet)) { 123 124 case BTSTACK_EVENT_STATE: 125 if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){ 126 printf("BTstack is up and running\n"); 127 // start ANT init 128 ant_state = ANT_SEND_RESET; 129 } 130 break; 131 132 case HCI_EVENT_PIN_CODE_REQUEST: 133 // inform about pin code request 134 printf("Pin code request - using '0000'\n\r"); 135 reverse_bd_addr(&packet[2], event_addr); 136 hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000"); 137 break; 138 139 case RFCOMM_EVENT_INCOMING_CONNECTION: 140 // data: event (8), len(8), address(48), channel (8), rfcomm_cid (16) 141 rfcomm_event_incoming_connection_get_bd_addr(packet, event_addr); 142 rfcomm_channel_nr = rfcomm_event_incoming_connection_get_server_channel(packet); 143 rfcomm_channel_id = rfcomm_event_incoming_connection_get_rfcomm_cid(packet); 144 printf("RFCOMM channel %u requested for %s\n", rfcomm_channel_nr, bd_addr_to_str(event_addr)); 145 rfcomm_accept_connection(rfcomm_channel_id); 146 break; 147 148 case RFCOMM_EVENT_CHANNEL_OPENED: 149 // data: event(8), len(8), status (8), address (48), server channel(8), rfcomm_cid(16), max frame size(16) 150 if (rfcomm_event_channel_opened_get_status(packet)) { 151 printf("RFCOMM channel open failed, status %u\n", rfcomm_event_channel_opened_get_status(packet)); 152 } else { 153 rfcomm_channel_id = rfcomm_event_channel_opened_get_rfcomm_cid(packet); 154 mtu = rfcomm_event_channel_opened_get_max_frame_size(packet); 155 printf("RFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n", rfcomm_channel_id, mtu); 156 } 157 break; 158 159 case RFCOMM_EVENT_CHANNEL_CLOSED: 160 rfcomm_channel_id = 0; 161 break; 162 163 164 case 0xff: // vendor specific -> ANT 165 166 // vendor specific ant message 167 if (packet[2] != 0x00) break; 168 if (packet[3] != 0x05) break; 169 170 event_code = packet[7]; 171 172 printf("ANT Event: "); 173 printf_hexdump(packet, size); 174 175 switch(event_code){ 176 177 case MESG_STARTUP_MESG_ID: 178 ant_state = ANT_SEND_ASSIGN_CHANNEL; 179 break; 180 181 case MESG_RESPONSE_EVENT_ID: 182 // channel = packet[8]; 183 message_id = packet[9]; 184 switch (message_id){ 185 case MESG_ASSIGN_CHANNEL_ID: 186 ant_state = ANT_SEND_SET_CHANNEL_ID; 187 break; 188 case MESG_CHANNEL_ID_ID: 189 ant_state = ANT_SEND_CHANNEL_OPEN; 190 break; 191 default: 192 break; 193 } 194 break; 195 default: 196 break; 197 } 198 break; 199 200 default: 201 break; 202 } 203 break; 204 205 default: 206 break; 207 } 208 209 ant_run(); 210 } 211 212 static void heartbeat_handler(struct btstack_timer_source *ts){ 213 214 if (rfcomm_channel_id){ 215 static int counter = 0; 216 char lineBuffer[30]; 217 sprintf(lineBuffer, "BTstack counter %04u\n\r", ++counter); 218 puts(lineBuffer); 219 if (rfcomm_can_send_packet_now(rfcomm_channel_id)){ 220 int err = rfcomm_send(rfcomm_channel_id, (uint8_t*) lineBuffer, strlen(lineBuffer)); 221 if (err) { 222 printf("rfcomm_send -> error %d", err); 223 } 224 } 225 } 226 227 btstack_run_loop_set_timer(ts, HEARTBEAT_PERIOD_MS); 228 btstack_run_loop_add_timer(ts); 229 } 230 231 int btstack_main(int argc, const char * argv[]); 232 int btstack_main(int argc, const char * argv[]){ 233 234 // register for HCI events 235 hci_event_callback_registration.callback = &packet_handler; 236 hci_add_event_handler(&hci_event_callback_registration); 237 238 // init L2CAP 239 l2cap_init(); 240 241 // init RFCOMM 242 rfcomm_init(); 243 rfcomm_register_service(packet_handler, rfcomm_channel_nr, 100); // reserved channel, mtu=100 244 245 // init SDP, create record for SPP and register with SDP 246 sdp_init(); 247 memset(spp_service_buffer, 0, sizeof(spp_service_buffer)); 248 spp_create_sdp_record(spp_service_buffer, 0x10001, RFCOMM_SERVER_CHANNEL, "SPP Counter"); 249 sdp_register_service(spp_service_buffer); 250 printf("SDP service record size: %u\n", de_get_len(spp_service_buffer)); 251 252 // set one-shot timer 253 heartbeat.process = &heartbeat_handler; 254 btstack_run_loop_set_timer(&heartbeat, HEARTBEAT_PERIOD_MS); 255 btstack_run_loop_add_timer(&heartbeat); 256 257 // set local name 258 gap_set_local_name("BlueMSP-Demo"); 259 // make discoverable 260 gap_discoverable_control(1); 261 262 printf("Run...\n\r"); 263 // turn on! 264 hci_power_control(HCI_POWER_ON); 265 return 0; 266 } 267 268