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 BLUEKITCHEN 24 * GMBH 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 #define BTSTACK_FILE__ "ant_test.c" 39 40 // ***************************************************************************** 41 // ANT + SPP Counter demo for TI CC2567 42 // - it provides a SPP port and and sends a counter every second 43 // - it also listens on ANT channel 33,1,1 44 // ***************************************************************************** 45 46 #include <stdio.h> 47 48 #include "btstack_chipset_cc256x.h" 49 50 #include "btstack.h" 51 #include "ant_cmd.h" 52 53 #define RFCOMM_SERVER_CHANNEL 1 54 #define HEARTBEAT_PERIOD_MS 1000 55 56 static uint8_t rfcomm_channel_nr = 1; 57 static uint16_t rfcomm_channel_id = 0; 58 static uint8_t spp_service_buffer[100]; 59 static btstack_timer_source_t heartbeat; 60 61 static btstack_packet_callback_registration_t hci_event_callback_registration; 62 63 // ant logic 64 static enum { 65 ANT_IDLE, 66 ANT_SEND_RESET, 67 ANT_W4_RESET_COMPLETE, 68 ANT_SEND_ASSIGN_CHANNEL, 69 ANT_W4_ASSIGN_CHANNEL_COMPLETE, 70 ANT_SEND_SET_CHANNEL_ID, 71 ANT_W4_SET_CHANNEL_ID_COMPLETE, 72 ANT_SEND_CHANNEL_OPEN, 73 ANT_W4_CHANNEL_OPEN_COMPLETE, 74 ANT_ACTIVE 75 } ant_state = ANT_IDLE; 76 77 static void ant_run(void){ 78 // check if ANT/HCI command can be sent 79 if (!hci_can_send_command_packet_now()) return; 80 81 // send next command 82 switch(ant_state){ 83 case ANT_SEND_RESET: 84 ant_state = ANT_W4_RESET_COMPLETE; 85 // 1. reset 86 printf("Send ANT Reset\n"); 87 ant_send_cmd(&ant_reset); 88 break; 89 case ANT_SEND_ASSIGN_CHANNEL: 90 ant_state = ANT_W4_ASSIGN_CHANNEL_COMPLETE; 91 // 2. assign channel 92 printf("Send Assign Channel\n"); 93 ant_send_cmd(&ant_assign_channel, 0, 0x00, 0); 94 break; 95 case ANT_SEND_SET_CHANNEL_ID: 96 ant_state = ANT_W4_SET_CHANNEL_ID_COMPLETE; 97 // 3. set channel ID 98 printf("Send Set Channel ID\n"); 99 ant_send_cmd(&ant_channel_id, 0, 33, 1, 1); 100 break; 101 case ANT_SEND_CHANNEL_OPEN: 102 ant_state = ANT_W4_CHANNEL_OPEN_COMPLETE; 103 // 4. open channel 104 printf("Send Channel Open\n"); 105 ant_send_cmd(&ant_open_channel, 0); 106 break; 107 default: 108 break; 109 } 110 } 111 112 // Bluetooth logic 113 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 114 bd_addr_t event_addr; 115 uint8_t rfcomm_channel_nr; 116 uint16_t mtu; 117 118 uint8_t event_code; 119 // uint8_t channel; 120 uint8_t message_id; 121 122 switch (packet_type) { 123 case HCI_EVENT_PACKET: 124 switch (hci_event_packet_get_type(packet)) { 125 126 case BTSTACK_EVENT_STATE: 127 if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){ 128 printf("BTstack is up and running\n"); 129 // start ANT init 130 ant_state = ANT_SEND_RESET; 131 } 132 break; 133 134 case HCI_EVENT_PIN_CODE_REQUEST: 135 // inform about pin code request 136 printf("Pin code request - using '0000'\n\r"); 137 reverse_bd_addr(&packet[2], event_addr); 138 hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000"); 139 break; 140 141 case RFCOMM_EVENT_INCOMING_CONNECTION: 142 // data: event (8), len(8), address(48), channel (8), rfcomm_cid (16) 143 rfcomm_event_incoming_connection_get_bd_addr(packet, event_addr); 144 rfcomm_channel_nr = rfcomm_event_incoming_connection_get_server_channel(packet); 145 rfcomm_channel_id = rfcomm_event_incoming_connection_get_rfcomm_cid(packet); 146 printf("RFCOMM channel %u requested for %s\n", rfcomm_channel_nr, bd_addr_to_str(event_addr)); 147 rfcomm_accept_connection(rfcomm_channel_id); 148 break; 149 150 case RFCOMM_EVENT_CHANNEL_OPENED: 151 // data: event(8), len(8), status (8), address (48), server channel(8), rfcomm_cid(16), max frame size(16) 152 if (rfcomm_event_channel_opened_get_status(packet)) { 153 printf("RFCOMM channel open failed, status 0%02x\n", rfcomm_event_channel_opened_get_status(packet)); 154 } else { 155 rfcomm_channel_id = rfcomm_event_channel_opened_get_rfcomm_cid(packet); 156 mtu = rfcomm_event_channel_opened_get_max_frame_size(packet); 157 printf("RFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n", rfcomm_channel_id, mtu); 158 } 159 break; 160 161 case RFCOMM_EVENT_CHANNEL_CLOSED: 162 rfcomm_channel_id = 0; 163 break; 164 165 166 case 0xff: // vendor specific -> ANT 167 168 // vendor specific ant message 169 if (packet[2] != 0x00) break; 170 if (packet[3] != 0x05) break; 171 172 event_code = packet[7]; 173 174 printf("ANT Event: "); 175 printf_hexdump(packet, size); 176 177 switch(event_code){ 178 179 case MESG_STARTUP_MESG_ID: 180 ant_state = ANT_SEND_ASSIGN_CHANNEL; 181 break; 182 183 case MESG_RESPONSE_EVENT_ID: 184 // channel = packet[8]; 185 message_id = packet[9]; 186 switch (message_id){ 187 case MESG_ASSIGN_CHANNEL_ID: 188 ant_state = ANT_SEND_SET_CHANNEL_ID; 189 break; 190 case MESG_CHANNEL_ID_ID: 191 ant_state = ANT_SEND_CHANNEL_OPEN; 192 break; 193 default: 194 break; 195 } 196 break; 197 default: 198 break; 199 } 200 break; 201 202 default: 203 break; 204 } 205 break; 206 207 default: 208 break; 209 } 210 211 ant_run(); 212 } 213 214 static void heartbeat_handler(struct btstack_timer_source *ts){ 215 216 if (rfcomm_channel_id){ 217 static int counter = 0; 218 char lineBuffer[30]; 219 sprintf(lineBuffer, "BTstack counter %04u\n\r", ++counter); 220 puts(lineBuffer); 221 if (rfcomm_can_send_packet_now(rfcomm_channel_id)){ 222 uint8_t status = rfcomm_send(rfcomm_channel_id, (uint8_t*) lineBuffer, strlen(lineBuffer)); 223 if (status) { 224 printf("rfcomm_send -> status 0x%02x", status); 225 } 226 } 227 } 228 229 btstack_run_loop_set_timer(ts, HEARTBEAT_PERIOD_MS); 230 btstack_run_loop_add_timer(ts); 231 } 232 233 int btstack_main(int argc, const char * argv[]); 234 int btstack_main(int argc, const char * argv[]){ 235 236 // init L2CAP 237 l2cap_init(); 238 239 // init RFCOMM 240 rfcomm_init(); 241 rfcomm_register_service(packet_handler, rfcomm_channel_nr, 100); // reserved channel, mtu=100 242 243 // init SDP, create record for SPP and register with SDP 244 sdp_init(); 245 memset(spp_service_buffer, 0, sizeof(spp_service_buffer)); 246 spp_create_sdp_record(spp_service_buffer, 0x10001, RFCOMM_SERVER_CHANNEL, "SPP Counter"); 247 sdp_register_service(spp_service_buffer); 248 249 // register for HCI events 250 hci_event_callback_registration.callback = &packet_handler; 251 hci_add_event_handler(&hci_event_callback_registration); 252 253 // set local name 254 gap_set_local_name("ANT Demo"); 255 // make discoverable 256 gap_discoverable_control(1); 257 258 // set one-shot timer 259 heartbeat.process = &heartbeat_handler; 260 btstack_run_loop_set_timer(&heartbeat, HEARTBEAT_PERIOD_MS); 261 btstack_run_loop_add_timer(&heartbeat); 262 263 printf("Run...\n\r"); 264 // turn on! 265 hci_power_control(HCI_POWER_ON); 266 return 0; 267 } 268 269