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Merge branch 'bugfix/btdm_fix_eddystone_demo_error' into 'master'

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Component/bt: fix eddystone demo error

See merge request idf/esp-idf!2036
This commit is contained in:
Jiang Jiang Jian 2018-03-19 14:26:55 +08:00
parent d6946598f6 4580a5ab4a
commit 9e8d098264
2 changed files with 82 additions and 10 deletions
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69
examples/bluetooth/ble_eddystone/main/esp_eddystone_api.c
View file

@ -57,19 +57,43 @@ static const char* eddystone_url_encoding[14] = {
".gov"
};
/****************** Eddystone-UID **************
Byte offset Field Description
0 Frame Type Value = 0x00
1 Ranging Data Calibrated Tx power at 0 m
2 NID[0] 10-byte Namespace
3 NID[1]
4 NID[2]
5 NID[3]
6 NID[4]
7 NID[5]
8 NID[6]
9 NID[7]
10 NID[8]
11 NID[9]
12 BID[0] 6-byte Instance
13 BID[1]
14 BID[2]
15 BID[3]
16 BID[4]
17 BID[5]
18 RFU Reserved for future use, must be0x00
19 RFU Reserved for future use, must be0x00
*********************************************/
/* decode and store received UID */
static esp_err_t esp_eddystone_uid_received(const uint8_t* buf, uint8_t len, esp_eddystone_result_t* res)
{
uint8_t pos = 0;
if(len+4 != EDDYSTONE_UID_FRAME_LEN) {
//1-byte Ranging Data + 10-byte Namespace + 6-byte Instance
if((len != EDDYSTONE_UID_DATA_LEN) && (len != (EDDYSTONE_UID_RFU_LEN+EDDYSTONE_UID_DATA_LEN))) {
//ERROR:uid len wrong
return -1;
}
res->inform.uid.ranging_data = buf[pos++];
for(int i=0; i<10; i++) {
for(int i=0; i<EDDYSTONE_UID_NAMESPACE_LEN; i++) {
res->inform.uid.namespace_id[i] = buf[pos++];
}
for(int i=0; i<6; i++) {
for(int i=0; i<EDDYSTONE_UID_INSTANCE_LEN; i++) {
res->inform.uid.instance_id[i] = buf[pos++];
}
return 0;
@ -94,26 +118,53 @@ static char* esp_eddystone_resolve_url_scheme(const uint8_t *url_start, const ui
return url_buf;
}
/************************** Eddystone-URL *************
Frame Specification
Byte offset Field Description
0 Frame Type Value = 0x10
1 TX Power Calibrated Tx power at 0 m
2 URL Scheme Encoded Scheme Prefix
3+ Encoded URL Length 1-17
*******************************************************/
/* decode and store received URL, the pointer url_res points to the resolved url */
static esp_err_t esp_eddystone_url_received(const uint8_t* buf, uint8_t len, esp_eddystone_result_t* res)
{
char *url_res = NULL;
uint8_t pos = 0;
if(len-1 > EDDYSTONE_URL_MAX_LEN) {
if(len-EDDYSTONE_URL_TX_POWER_LEN > EDDYSTONE_URL_MAX_LEN) {
//ERROR:too long url
return -1;
}
res->inform.url.tx_power = buf[pos++];
url_res = esp_eddystone_resolve_url_scheme(buf+pos, buf+len-1);
memcpy(&res->inform.url.url, url_res, strlen(url_res));
res->inform.url.url[strlen(url_res)] = '\0';
return 0;
}
/****************** eddystone-tlm ***************
* Unencrypted TLM Frame Specification
Byte offset Field Description
0 Frame Type Value = 0x20
1 Version TLM version, value = 0x00
2 VBATT[0] Battery voltage, 1 mV/bit
3 VBATT[1]
4 TEMP[0] Beacon temperature
5 TEMP[1]
6 ADV_CNT[0] Advertising PDU count
7 ADV_CNT[1]
8 ADV_CNT[2]
9 ADV_CNT[3]
10 SEC_CNT[0] Time since power-on or reboot
11 SEC_CNT[1]
12 SEC_CNT[2]
13 SEC_CNT[3]
************************************************/
/* decode and store received TLM */
static esp_err_t esp_eddystone_tlm_received(const uint8_t* buf, uint8_t len, esp_eddystone_result_t* res)
{
uint8_t pos = 0;
if(len+4 > EDDYSTONE_TLM_FRAME_LEN) {
if(len > EDDYSTONE_TLM_DATA_LEN) {
//ERROR:TLM too long
return -1;
}
@ -156,10 +207,16 @@ static esp_err_t esp_eddystone_get_inform(const uint8_t* buf, uint8_t len, esp_e
esp_err_t esp_eddystone_decode(const uint8_t* buf, uint8_t len, esp_eddystone_result_t* res)
{
static uint8_t pos=0;
if (len == 0 || buf == NULL || res == NULL) {
return -1;
}
uint8_t pos=0;
while(res->common.srv_data_type != EDDYSTONE_SERVICE_UUID)
{
pos++;
if(pos >= len ) {
return -1;
}
uint8_t ad_type = buf[pos++];
switch(ad_type)
{

23
examples/bluetooth/ble_eddystone/main/esp_eddystone_protocol.h
View file

@ -19,10 +19,25 @@
#define EDDYSTONE_FRAME_TYPE_URL 0x10
#define EDDYSTONE_FRAME_TYPE_TLM 0x20
#define EDDYSTONE_FRAME_TYPE_EID 0x30
#define EDDYSTONE_UID_FRAME_LEN 0x17
#define EDDYSTONE_TLM_FRAME_LEN 0x11
#define EDDYSTONE_URL_MAX_LEN 18
//UID
#define EDDYSTONE_UID_RANG_DATA_LEN 1
#define EDDYSTONE_UID_NAMESPACE_LEN 10
#define EDDYSTONE_UID_INSTANCE_LEN 6
#define EDDYSTONE_UID_RFU_LEN 2
#define EDDYSTONE_UID_DATA_LEN (EDDYSTONE_UID_RANG_DATA_LEN + EDDYSTONE_UID_NAMESPACE_LEN + EDDYSTONE_UID_INSTANCE_LEN)
//TLM
#define EDDYSTONE_TLM_VERSION_LEN 1
#define EDDYSTONE_TLM_BATTERY_VOLTAGE_LEN 2
#define EDDYSTONE_TLM_TEMPERATURE_LEN 2
#define EDDYSTONE_TLM_ADV_COUNT_LEN 4
#define EDDYSTONE_TLM_TIME_LEN 4
#define EDDYSTONE_TLM_DATA_LEN (EDDYSTONE_TLM_VERSION_LEN + EDDYSTONE_TLM_BATTERY_VOLTAGE_LEN + \
EDDYSTONE_TLM_TEMPERATURE_LEN + EDDYSTONE_TLM_ADV_COUNT_LEN + EDDYSTONE_TLM_TIME_LEN)
//URL
#define EDDYSTONE_URL_SCHEME_LEN 1
#define EDDYSTONE_URL_ENCODED_MAX_LEN 17
#define EDDYSTONE_URL_MAX_LEN (EDDYSTONE_URL_SCHEME_LEN + EDDYSTONE_URL_ENCODED_MAX_LEN)
#define EDDYSTONE_URL_TX_POWER_LEN 1
/* Eddystone UID frame */