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Dependencies:   USBHost mbed

Fork of BTstack by Norimasa Okamoto

spp_counter.cpp@2:871b41f4789e, 2013-03-22 (annotated)

Committer:
va009039
Date:
Fri Mar 22 22:35:57 2013 +0000
Revision:
2:871b41f4789e
Parent:
1:b657594559be 
change to single thread

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 0:1ed23ab1345f 1 #if 0
va009039 0:1ed23ab1345f 2 //*****************************************************************************
va009039 0:1ed23ab1345f 3 //
va009039 0:1ed23ab1345f 4 // spp_counter demo - it provides a SPP and sends a counter every second
va009039 0:1ed23ab1345f 5 //
va009039 0:1ed23ab1345f 6 // it doesn't use the LCD to get down to a minimal memory footpring
va009039 0:1ed23ab1345f 7 //
va009039 0:1ed23ab1345f 8 //*****************************************************************************
va009039 0:1ed23ab1345f 9 #include "mbed.h"
va009039 0:1ed23ab1345f 10 #include <btstack/hci_cmds.h>
va009039 0:1ed23ab1345f 11 #include <btstack/run_loop.h>
va009039 0:1ed23ab1345f 12 #include <btstack/sdp_util.h>
va009039 0:1ed23ab1345f 13
va009039 0:1ed23ab1345f 14 #include "hci.h"
va009039 0:1ed23ab1345f 15 #include "l2cap.h"
va009039 0:1ed23ab1345f 16 #include "btstack_memory.h"
va009039 0:1ed23ab1345f 17 #include "remote_device_db.h"
va009039 0:1ed23ab1345f 18 #include "rfcomm.h"
va009039 1:b657594559be 19 extern "C" {
va009039 0:1ed23ab1345f 20 #include "sdp.h"
va009039 1:b657594559be 21 }
va009039 0:1ed23ab1345f 22 #include "config.h"
va009039 0:1ed23ab1345f 23 #include "debug.h"
va009039 0:1ed23ab1345f 24 #include "bd_addr.h" // class bd_addr
va009039 0:1ed23ab1345f 25
va009039 0:1ed23ab1345f 26 Serial pc(USBTX, USBRX);
va009039 0:1ed23ab1345f 27 DigitalOut led1(LED1), led2(LED2);
va009039 0:1ed23ab1345f 28
va009039 0:1ed23ab1345f 29 #define HEARTBEAT_PERIOD_MS 1000
va009039 0:1ed23ab1345f 30
va009039 0:1ed23ab1345f 31 static uint8_t rfcomm_channel_nr = 1;
va009039 0:1ed23ab1345f 32 static uint16_t rfcomm_channel_id = 0;
va009039 0:1ed23ab1345f 33 static uint8_t spp_service_buffer[128];
va009039 0:1ed23ab1345f 34
va009039 0:1ed23ab1345f 35 // Bluetooth logic
va009039 0:1ed23ab1345f 36 static void packet_handler(void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
va009039 0:1ed23ab1345f 37 bd_addr_t event_addr;
va009039 0:1ed23ab1345f 38 uint8_t rfcomm_channel_nr;
va009039 0:1ed23ab1345f 39 uint16_t mtu;
va009039 0:1ed23ab1345f 40
va009039 0:1ed23ab1345f 41 switch (packet_type) {
va009039 0:1ed23ab1345f 42 case HCI_EVENT_PACKET:
va009039 0:1ed23ab1345f 43 switch (packet[0]) {
va009039 0:1ed23ab1345f 44
va009039 0:1ed23ab1345f 45 case BTSTACK_EVENT_STATE:
va009039 0:1ed23ab1345f 46 // bt stack activated, get started - set local name
va009039 0:1ed23ab1345f 47 if (packet[2] == HCI_STATE_WORKING) {
va009039 0:1ed23ab1345f 48 hci_send_cmd(&hci_write_local_name, "mbed-Demo");
va009039 0:1ed23ab1345f 49 }
va009039 0:1ed23ab1345f 50 break;
va009039 0:1ed23ab1345f 51
va009039 0:1ed23ab1345f 52 case HCI_EVENT_COMMAND_COMPLETE:
va009039 0:1ed23ab1345f 53 if (COMMAND_COMPLETE_EVENT(packet, hci_read_bd_addr)){
va009039 0:1ed23ab1345f 54 bt_flip_addr(event_addr, &packet[6]);
va009039 0:1ed23ab1345f 55 log_info("BD-ADDR: %s\n\r", bd_addr_to_str(event_addr));
va009039 0:1ed23ab1345f 56 break;
va009039 0:1ed23ab1345f 57 }
va009039 0:1ed23ab1345f 58 if (COMMAND_COMPLETE_EVENT(packet, hci_write_local_name)){
va009039 0:1ed23ab1345f 59 hci_discoverable_control(1);
va009039 0:1ed23ab1345f 60 break;
va009039 0:1ed23ab1345f 61 }
va009039 0:1ed23ab1345f 62 break;
va009039 0:1ed23ab1345f 63
va009039 0:1ed23ab1345f 64 case HCI_EVENT_LINK_KEY_REQUEST:
va009039 0:1ed23ab1345f 65 // deny link key request
va009039 0:1ed23ab1345f 66 log_info("Link key request\n\r");
va009039 0:1ed23ab1345f 67 bt_flip_addr(event_addr, &packet[2]);
va009039 0:1ed23ab1345f 68 hci_send_cmd(&hci_link_key_request_negative_reply, &event_addr);
va009039 0:1ed23ab1345f 69 break;
va009039 0:1ed23ab1345f 70
va009039 0:1ed23ab1345f 71 case HCI_EVENT_PIN_CODE_REQUEST:
va009039 0:1ed23ab1345f 72 // inform about pin code request
va009039 0:1ed23ab1345f 73 log_info("Pin code request - using '0000'\n\r");
va009039 0:1ed23ab1345f 74 bt_flip_addr(event_addr, &packet[2]);
va009039 0:1ed23ab1345f 75 hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000");
va009039 0:1ed23ab1345f 76 break;
va009039 0:1ed23ab1345f 77
va009039 0:1ed23ab1345f 78 case RFCOMM_EVENT_INCOMING_CONNECTION:
va009039 0:1ed23ab1345f 79 // data: event (8), len(8), address(48), channel (8), rfcomm_cid (16)
va009039 0:1ed23ab1345f 80 bt_flip_addr(event_addr, &packet[2]);
va009039 0:1ed23ab1345f 81 rfcomm_channel_nr = packet[8];
va009039 0:1ed23ab1345f 82 rfcomm_channel_id = READ_BT_16(packet, 9);
va009039 0:1ed23ab1345f 83 log_info("RFCOMM channel %u requested for %s\n\r", rfcomm_channel_nr, bd_addr_to_str(event_addr));
va009039 0:1ed23ab1345f 84 rfcomm_accept_connection_internal(rfcomm_channel_id);
va009039 0:1ed23ab1345f 85 break;
va009039 0:1ed23ab1345f 86
va009039 0:1ed23ab1345f 87 case RFCOMM_EVENT_OPEN_CHANNEL_COMPLETE:
va009039 0:1ed23ab1345f 88 // data: event(8), len(8), status (8), address (48), server channel(8), rfcomm_cid(16), max frame size(16)
va009039 0:1ed23ab1345f 89 if (packet[2]) {
va009039 0:1ed23ab1345f 90 log_info("RFCOMM channel open failed, status %u\n\r", packet[2]);
va009039 0:1ed23ab1345f 91 } else {
va009039 0:1ed23ab1345f 92 rfcomm_channel_id = READ_BT_16(packet, 12);
va009039 0:1ed23ab1345f 93 mtu = READ_BT_16(packet, 14);
va009039 0:1ed23ab1345f 94 log_info("\n\rRFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n\r", rfcomm_channel_id, mtu);
va009039 0:1ed23ab1345f 95 }
va009039 0:1ed23ab1345f 96 break;
va009039 0:1ed23ab1345f 97
va009039 0:1ed23ab1345f 98 case RFCOMM_EVENT_CHANNEL_CLOSED:
va009039 0:1ed23ab1345f 99 rfcomm_channel_id = 0;
va009039 0:1ed23ab1345f 100 break;
va009039 0:1ed23ab1345f 101
va009039 0:1ed23ab1345f 102 default:
va009039 0:1ed23ab1345f 103 break;
va009039 0:1ed23ab1345f 104 }
va009039 0:1ed23ab1345f 105 break;
va009039 0:1ed23ab1345f 106
va009039 0:1ed23ab1345f 107 default:
va009039 0:1ed23ab1345f 108 break;
va009039 0:1ed23ab1345f 109 }
va009039 0:1ed23ab1345f 110 }
va009039 0:1ed23ab1345f 111
va009039 0:1ed23ab1345f 112 static void heartbeat_handler(struct timer *ts){
va009039 0:1ed23ab1345f 113
va009039 0:1ed23ab1345f 114 if (rfcomm_channel_id){
va009039 0:1ed23ab1345f 115 static int counter = 0;
va009039 0:1ed23ab1345f 116 char lineBuffer[32];
va009039 0:1ed23ab1345f 117 snprintf(lineBuffer, sizeof(lineBuffer), "counter %04u\n\r", ++counter);
va009039 0:1ed23ab1345f 118 log_info("%s\n", lineBuffer);
va009039 0:1ed23ab1345f 119 int err = rfcomm_send_internal(rfcomm_channel_id, (uint8_t*) lineBuffer, strlen(lineBuffer));
va009039 0:1ed23ab1345f 120 if (err) {
va009039 0:1ed23ab1345f 121 log_info("rfcomm_send_internal -> error %d", err);
va009039 0:1ed23ab1345f 122 }
va009039 0:1ed23ab1345f 123 }
va009039 0:1ed23ab1345f 124
va009039 0:1ed23ab1345f 125 run_loop_set_timer(ts, HEARTBEAT_PERIOD_MS);
va009039 0:1ed23ab1345f 126 run_loop_add_timer(ts);
va009039 0:1ed23ab1345f 127 led2 = !led2;
va009039 0:1ed23ab1345f 128 }
va009039 0:1ed23ab1345f 129
va009039 0:1ed23ab1345f 130 // main
va009039 0:1ed23ab1345f 131 int main(void)
va009039 0:1ed23ab1345f 132 {
va009039 0:1ed23ab1345f 133 pc.baud(921600);
va009039 0:1ed23ab1345f 134 log_info("%s\n", __FILE__);
va009039 0:1ed23ab1345f 135
va009039 0:1ed23ab1345f 136
va009039 0:1ed23ab1345f 137 // init LEDs
va009039 0:1ed23ab1345f 138 led1 = led2 = 1;
va009039 0:1ed23ab1345f 139
va009039 0:1ed23ab1345f 140 /// GET STARTED with BTstack ///
va009039 0:1ed23ab1345f 141 btstack_memory_init();
va009039 0:1ed23ab1345f 142 run_loop_init(RUN_LOOP_EMBEDDED);
va009039 0:1ed23ab1345f 143
va009039 0:1ed23ab1345f 144 // init HCI
va009039 0:1ed23ab1345f 145 hci_transport_t * transport = hci_transport_usb_instance();
va009039 0:1ed23ab1345f 146 remote_device_db_t * remote_db = (remote_device_db_t *) &remote_device_db_memory;
va009039 0:1ed23ab1345f 147 hci_init(transport, NULL, NULL, remote_db);
va009039 0:1ed23ab1345f 148
va009039 0:1ed23ab1345f 149 // init L2CAP
va009039 0:1ed23ab1345f 150 l2cap_init();
va009039 0:1ed23ab1345f 151 l2cap_register_packet_handler(packet_handler);
va009039 0:1ed23ab1345f 152
va009039 0:1ed23ab1345f 153 // init RFCOMM
va009039 0:1ed23ab1345f 154 rfcomm_init();
va009039 0:1ed23ab1345f 155 rfcomm_register_packet_handler(packet_handler);
va009039 0:1ed23ab1345f 156 rfcomm_register_service_internal(NULL, rfcomm_channel_nr, 100); // reserved channel, mtu=100
va009039 0:1ed23ab1345f 157
va009039 0:1ed23ab1345f 158 // init SDP, create record for SPP and register with SDP
va009039 0:1ed23ab1345f 159 sdp_init();
va009039 0:1ed23ab1345f 160 memset(spp_service_buffer, 0, sizeof(spp_service_buffer));
va009039 0:1ed23ab1345f 161 service_record_item_t * service_record_item = (service_record_item_t *) spp_service_buffer;
va009039 0:1ed23ab1345f 162 sdp_create_spp_service( (uint8_t*) &service_record_item->service_record, 1, "SPP Counter");
va009039 0:1ed23ab1345f 163 log_info("SDP service buffer size: %u\n", (uint16_t) (sizeof(service_record_item_t) + de_get_len((uint8_t*) &service_record_item->service_record)));
va009039 0:1ed23ab1345f 164 sdp_register_service_internal(NULL, service_record_item);
va009039 0:1ed23ab1345f 165
va009039 0:1ed23ab1345f 166 // set one-shot timer
va009039 0:1ed23ab1345f 167 timer_source_t heartbeat;
va009039 0:1ed23ab1345f 168 heartbeat.process = &heartbeat_handler;
va009039 0:1ed23ab1345f 169 run_loop_set_timer(&heartbeat, HEARTBEAT_PERIOD_MS);
va009039 0:1ed23ab1345f 170 run_loop_add_timer(&heartbeat);
va009039 0:1ed23ab1345f 171
va009039 0:1ed23ab1345f 172 log_info("Run...\n\r");
va009039 0:1ed23ab1345f 173
va009039 0:1ed23ab1345f 174 // turn on!
va009039 0:1ed23ab1345f 175 hci_power_control(HCI_POWER_ON);
va009039 0:1ed23ab1345f 176
va009039 0:1ed23ab1345f 177 // go!
va009039 0:1ed23ab1345f 178 run_loop_execute();
va009039 0:1ed23ab1345f 179
va009039 0:1ed23ab1345f 180 // happy compiler!
va009039 0:1ed23ab1345f 181 return 0;
va009039 0:1ed23ab1345f 182 }
va009039 0:1ed23ab1345f 183
va009039 0:1ed23ab1345f 184 #endif