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ble client: split reports contained in ad and send them as single events

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mila@ringwald.ch 2013-11-08 16:17:43 +00:00
parent dadf87d336
commit 980785128f
1 changed files with 61 additions and 9 deletions
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70
example/libusb/ble_client.c
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@ -1,5 +1,5 @@
/* /*
* Copyright (C) 2011-2012 by Matthias Ringwald * Copyright (C) 2011-2013 by Matthias Ringwald
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
@ -37,9 +37,6 @@
// //
//***************************************************************************** //*****************************************************************************
// TODO: seperate BR/EDR from LE ACL buffers
// TODO: move LE init into HCI
// ..
// NOTE: Supports only a single connection // NOTE: Supports only a single connection
@ -62,6 +59,23 @@
// API // API
typedef struct gatt_client_event {
uint8_t type;
} gatt_client_event_t;
typedef struct ad_event {
uint8_t type;
uint8_t event_type;
uint8_t address_type;
bd_addr_t address;
uint8_t rssi;
uint8_t length;
uint8_t * data;
} ad_event_t;
void (*gatt_client_callback)(gatt_client_event_t * event);
void gatt_client_init(); void gatt_client_init();
void gatt_client_start_scan(); void gatt_client_start_scan();
// creates one event per found peripheral device // creates one event per found peripheral device
@ -103,6 +117,21 @@ void gatt_client_stop_scan(){
gatt_client_run(); gatt_client_run();
} }
static void hexdump2(void *data, int size){
int i;
for (i=0; i<size;i++){
printf("%02X ", ((uint8_t *)data)[i]);
}
printf("\n");
}
static void dump_ad_event(ad_event_t e){
printf("evt-type %u, addr-type %u, addr %s, rssi %u, length adv %u, data: ", e.event_type,
e.address_type, bd_addr_to_str(e.address), e.rssi, e.length);
hexdump2( e.data, e.length);
}
static void packet_handler (void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ static void packet_handler (void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
switch (packet_type) { switch (packet_type) {
@ -110,7 +139,7 @@ static void packet_handler (void * connection, uint8_t packet_type, uint16_t cha
switch (packet[0]) { switch (packet[0]) {
case BTSTACK_EVENT_STATE: case BTSTACK_EVENT_STATE:
// bt stack activated, get started - set local name // bt stack activated, get started
if (packet[2] == HCI_STATE_WORKING) { if (packet[2] == HCI_STATE_WORKING) {
printf("Working!\n"); printf("Working!\n");
gatt_client_start_scan(); gatt_client_start_scan();
@ -122,13 +151,36 @@ static void packet_handler (void * connection, uint8_t packet_type, uint16_t cha
scan_state = requested_scan_state; scan_state = requested_scan_state;
} }
break; break;
case HCI_EVENT_LE_META: case HCI_EVENT_LE_META:
switch (packet[2]) { switch (packet[2]) {
case HCI_SUBEVENT_LE_ADVERTISING_REPORT: case HCI_SUBEVENT_LE_ADVERTISING_REPORT: {
// reset connection MTU int num_reports = packet[3];
printf("Received ad ...\n"); int i;
int total_data_length = 0;
int data_offset = 0;
for (i=0; i<num_reports;i++){
total_data_length += packet[4+num_reports*8+i];
}
for (i=0; i<num_reports;i++){
ad_event_t advertisement_event;
advertisement_event.event_type = packet[4+i];
advertisement_event.address_type = packet[4+num_reports+i];
bt_flip_addr(advertisement_event.address, &packet[4+num_reports*2+i*6]);
advertisement_event.length = packet[4+num_reports*8+i];
advertisement_event.data = &packet[4+num_reports*9+data_offset];
data_offset += advertisement_event.length;
advertisement_event.rssi = packet[4+num_reports*9+total_data_length + i];
// TODO add register callback
// (*gatt_client_callback)((gatt_client_event_t*)&advertisement_event);
dump_ad_event(advertisement_event);
}
break; break;
}
default: default:
break; break;
} }