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example/spp_streamer: new version that acts as a server, similar to le_streamer

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This commit is contained in:
Matthias Ringwald 2017-05-25 16:49:39 +02:00
parent 3d58195059
commit 402122d413
1 changed files with 144 additions and 122 deletions
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266
example/spp_streamer.c
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@ -35,50 +35,42 @@
*
*/
#define __BTSTACK_FILE__ "spp_streamer.c"
// *****************************************************************************
//
// minimal setup for SDP client over USB or UART
//
/* EXAMPLE_START(spp_streamer): Send test data via SPP as fast as possible
* @text After RFCOMM connections gets open, request a
* RFCOMM_EVENT_CAN_SEND_NOW via rfcomm_request_can_send_now_event().
* When we get the RFCOMM_EVENT_CAN_SEND_NOW, send data and request another one.
*/
// *****************************************************************************
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "btstack.h"
int btstack_main(int argc, const char * argv[]);
#define RFCOMM_SERVER_CHANNEL 1
#define TEST_COD 0x1234
#define NUM_ROWS 25
#define NUM_COLS 40
typedef enum {
W4_SDP_RESULT,
W4_SDP_COMPLETE,
W4_RFCOMM_CHANNEL,
SENDING,
DONE
} state_t;
static void handle_query_rfcomm_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
#define DATA_VOLUME (10 * 1000 * 1000)
// configuration area {
static bd_addr_t remote = {0x84, 0x38, 0x35, 0x65, 0xD1, 0x15}; // address of remote device
static const char * spp_service_name_prefix = "Bluetooth-Incoming"; // default on OS X
// configuration area }
static btstack_packet_callback_registration_t hci_event_callback_registration;
static uint8_t test_data[NUM_ROWS * NUM_COLS];
static uint16_t test_data_len = sizeof(test_data);
static uint8_t channel_nr = 0;
static uint16_t mtu;
static uint16_t rfcomm_cid = 0;
static uint32_t data_to_send = DATA_VOLUME;
static state_t state = W4_SDP_RESULT;
static btstack_packet_callback_registration_t hci_event_callback_registration;
// SPP
static uint8_t spp_service_buffer[150];
static uint16_t spp_test_data_len;
static uint16_t rfcomm_mtu;
static uint16_t rfcomm_cid = 0;
// static uint32_t data_to_send = DATA_VOLUME;
/*
* @section Track throughput
@ -89,32 +81,32 @@ static btstack_packet_callback_registration_t hci_event_callback_registration;
/* LISTING_START(tracking): Tracking throughput */
#define REPORT_INTERVAL_MS 3000
static uint32_t test_data_sent;
static uint32_t test_data_transferred;
static uint32_t test_data_start;
static void test_reset(void){
test_data_start = btstack_run_loop_get_time_ms();
test_data_sent = 0;
test_data_transferred = 0;
}
static void test_track_sent(int bytes_sent){
test_data_sent += bytes_sent;
static void test_track_transferred(int bytes_sent){
test_data_transferred += bytes_sent;
// evaluate
uint32_t now = btstack_run_loop_get_time_ms();
uint32_t time_passed = now - test_data_start;
if (time_passed < REPORT_INTERVAL_MS) return;
// print speed
int bytes_per_second = test_data_sent * 1000 / time_passed;
printf("%u bytes sent-> %u.%03u kB/s\n", (int) test_data_sent, (int) bytes_per_second / 1000, bytes_per_second % 1000);
int bytes_per_second = test_data_transferred * 1000 / time_passed;
printf("%u bytes -> %u.%03u kB/s\n", (int) test_data_transferred, (int) bytes_per_second / 1000, bytes_per_second % 1000);
// restart
test_data_start = now;
test_data_sent = 0;
test_data_transferred = 0;
}
/* LISTING_END(tracking): Tracking throughput */
static void create_test_data(void){
static void spp_create_test_data(void){
int x,y;
for (y=0;y<NUM_ROWS;y++){
for (x=0;x<NUM_COLS-2;x++){
@ -125,121 +117,151 @@ static void create_test_data(void){
}
}
static void send_packet(void){
rfcomm_send(rfcomm_cid, (uint8_t*) test_data, test_data_len);
static void spp_send_packet(void){
rfcomm_send(rfcomm_cid, (uint8_t*) test_data, spp_test_data_len);
test_track_sent(test_data_len);
if (data_to_send <= test_data_len){
state = DONE;
test_track_transferred(spp_test_data_len);
#if 0
if (data_to_send <= spp_test_data_len){
printf("SPP Streamer: enough data send, closing channel\n");
rfcomm_disconnect(rfcomm_cid);
rfcomm_cid = 0;
return;
}
data_to_send -= test_data_len;
data_to_send -= spp_test_data_len;
#endif
rfcomm_request_can_send_now_event(rfcomm_cid);
}
/*
* @section Packet Handler
*
* @text The packet handler of the combined example is just the combination of the individual packet handlers.
*/
static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel);
UNUSED(size);
if (packet_type != HCI_EVENT_PACKET) return;
uint8_t event = hci_event_packet_get_type(packet);
switch (event) {
case BTSTACK_EVENT_STATE:
// bt stack activated, get started
if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){
printf("SDP Query for RFCOMM services on %s started\n", bd_addr_to_str(remote));
sdp_client_query_rfcomm_channel_and_name_for_uuid(&handle_query_rfcomm_event, remote, BLUETOOTH_ATTRIBUTE_PUBLIC_BROWSE_ROOT);
}
break;
case RFCOMM_EVENT_CHANNEL_OPENED:
// data: event(8), len(8), status (8), address (48), handle(16), server channel(8), rfcomm_cid(16), max frame size(16)
if (packet[2]) {
state = DONE;
printf("RFCOMM channel open failed, status %u\n", packet[2]);
} else {
// data: event(8), len(8), status (8), address (48), handle (16), server channel(8), rfcomm_cid(16), max frame size(16)
state = SENDING;
rfcomm_cid = little_endian_read_16(packet, 12);
mtu = little_endian_read_16(packet, 14);
printf("RFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n", rfcomm_cid, mtu);
if ((test_data_len > mtu)) {
test_data_len = mtu;
}
test_reset();
rfcomm_request_can_send_now_event(rfcomm_cid);
break;
}
break;
case RFCOMM_EVENT_CAN_SEND_NOW:
send_packet();
break;
case RFCOMM_EVENT_CHANNEL_CLOSED:
if (state != DONE) {
printf("RFCOMM_EVENT_CHANNEL_CLOSED received before all test data was sent\n");
state = DONE;
bd_addr_t event_addr;
uint8_t rfcomm_channel_nr;
switch (packet_type) {
case HCI_EVENT_PACKET:
switch (hci_event_packet_get_type(packet)) {
case HCI_EVENT_PIN_CODE_REQUEST:
// inform about pin code request
printf("Pin code request - using '0000'\n");
hci_event_pin_code_request_get_bd_addr(packet, event_addr);
gap_pin_code_response(event_addr, "0000");
break;
case HCI_EVENT_USER_CONFIRMATION_REQUEST:
// inform about user confirmation request
printf("SSP User Confirmation Request with numeric value '%06"PRIu32"'\n", little_endian_read_32(packet, 8));
printf("SSP User Confirmation Auto accept\n");
break;
case RFCOMM_EVENT_INCOMING_CONNECTION:
// data: event (8), len(8), address(48), channel (8), rfcomm_cid (16)
rfcomm_event_incoming_connection_get_bd_addr(packet, event_addr);
rfcomm_channel_nr = rfcomm_event_incoming_connection_get_server_channel(packet);
rfcomm_cid = rfcomm_event_incoming_connection_get_rfcomm_cid(packet);
printf("RFCOMM channel %u requested for %s\n", rfcomm_channel_nr, bd_addr_to_str(event_addr));
rfcomm_accept_connection(rfcomm_cid);
break;
case RFCOMM_EVENT_CHANNEL_OPENED:
// data: event(8), len(8), status (8), address (48), server channel(8), rfcomm_cid(16), max frame size(16)
if (rfcomm_event_channel_opened_get_status(packet)) {
printf("RFCOMM channel open failed, status %u\n", rfcomm_event_channel_opened_get_status(packet));
} else {
rfcomm_cid = rfcomm_event_channel_opened_get_rfcomm_cid(packet);
rfcomm_mtu = rfcomm_event_channel_opened_get_max_frame_size(packet);
printf("RFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n", rfcomm_cid, rfcomm_mtu);
spp_test_data_len = rfcomm_mtu;
if (spp_test_data_len > sizeof(test_data)){
spp_test_data_len = sizeof(test_data);
}
test_reset();
rfcomm_request_can_send_now_event(rfcomm_cid);
}
break;
case RFCOMM_EVENT_CAN_SEND_NOW:
spp_send_packet();
break;
case RFCOMM_EVENT_CHANNEL_CLOSED:
printf("RFCOMM channel closed\n");
rfcomm_cid = 0;
break;
default:
break;
}
break;
case RFCOMM_DATA_PACKET:
test_track_transferred(size);
#if 0
printf("RCV: '");
for (i=0;i<size;i++){
putchar(packet[i]);
}
printf("'\n");
#endif
break;
default:
break;
}
}
}
static void handle_found_service(const char * name, uint8_t port){
printf("APP: Service name: '%s', RFCOMM port %u\n", name, port);
/*
* @section Main Application Setup
*
* @text As with the packet and the heartbeat handlers, the combined app setup contains the code from the individual example setups.
*/
if (strncmp(name, spp_service_name_prefix, strlen(spp_service_name_prefix)) != 0) return;
printf("APP: matches requested SPP Service Name\n");
channel_nr = port;
state = W4_SDP_COMPLETE;
}
static void handle_query_rfcomm_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(packet_type);
UNUSED(channel);
UNUSED(size);
switch (packet[0]){
case SDP_EVENT_QUERY_RFCOMM_SERVICE:
handle_found_service(sdp_event_query_rfcomm_service_get_name(packet),
sdp_event_query_rfcomm_service_get_rfcomm_channel(packet));
break;
case SDP_EVENT_QUERY_COMPLETE:
if (state != W4_SDP_COMPLETE){
printf("Requested SPP Service %s not found \n", spp_service_name_prefix);
break;
}
// connect
printf("Requested SPP Service found, creating RFCOMM channel\n");
state = W4_RFCOMM_CHANNEL;
rfcomm_create_channel(packet_handler, remote, channel_nr, NULL);
break;
default:
break;
}
}
int btstack_main(int argc, const char * argv[]);
int btstack_main(int argc, const char * argv[]){
/* LISTING_START(MainConfiguration): Init L2CAP RFCOMM SDP SPP */
int btstack_main(int argc, const char * argv[])
{
(void)argc;
(void)argv;
create_test_data();
printf("Client HCI init done\r\n");
// register for HCI events
hci_event_callback_registration.callback = &packet_handler;
hci_add_event_handler(&hci_event_callback_registration);
// init L2CAP
l2cap_init();
// turn on!
hci_power_control(HCI_POWER_ON);
rfcomm_init();
rfcomm_register_service(packet_handler, RFCOMM_SERVER_CHANNEL, 0xffff);
// init SDP, create record for SPP and register with SDP
sdp_init();
memset(spp_service_buffer, 0, sizeof(spp_service_buffer));
spp_create_sdp_record(spp_service_buffer, 0x10001, RFCOMM_SERVER_CHANNEL, "SPP Streamer");
sdp_register_service(spp_service_buffer);
// printf("SDP service record size: %u\n", de_get_len(spp_service_buffer));
gap_ssp_set_io_capability(SSP_IO_CAPABILITY_DISPLAY_YES_NO);
// short-cut to find other SPP Streamer
gap_set_class_of_device(TEST_COD);
gap_discoverable_control(1);
spp_create_test_data();
// turn on!
hci_power_control(HCI_POWER_ON);
return 0;
}
/* LISTING_END */
/* EXAMPLE_END */