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Merge branch 'bugfix/btdm_fix_receive_adv_pkt_when_duplicate_scan_enabled_v3.2' into 'release/v3.2'

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Component/bt: fix receive adv pkt when enable duplicate scan (backport v3.2)

See merge request idf/esp-idf!3942
This commit is contained in:
Jiang Jiang Jian 2018-12-18 11:45:28 +08:00
commit c418714ec6
1 changed files with 19 additions and 2 deletions
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21
components/bt/bluedroid/stack/btm/btm_ble_gap.c
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@ -3316,9 +3316,26 @@ static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt
BOOLEAN update = TRUE;
UINT8 result = 0;
//if scan duplicate is enabled, the adv packet without scan response is allowed to report to higgher layer
/* Event_Type:
0x00 Connectable undirected advertising (ADV_IND).
0x01 Connectable directed advertising (ADV_DIRECT_IND)
0x02 Scannable undirected advertising (ADV_SCAN_IND)
0x03 Non connectable undirected advertising (ADV_NONCONN_IND)
0x04 Scan Response (SCAN_RSP)
0x05-0xFF Reserved for future use
*/
//if scan duplicate is enabled, the adv packet without scan response is allowed to report to higher layer
if(p_le_inq_cb->scan_duplicate_filter == BTM_BLE_SCAN_DUPLICATE_ENABLE) {
if(memcmp(bda, p_le_inq_cb->adv_addr, BD_ADDR_LEN) != 0) {
/*
Bluedroid will put the advertising packet and scan response into a packet and send it to the higher layer.
If two advertising packets are not with the same address, or can't be combined into a packet, then the first advertising
packet will be discarded. So we added the following judgment:
1. For different addresses, send the last advertising packet to higher layer
2. For same address and same advertising type (not scan response), send the last advertising packet to higher layer
3. For same address and scan response, do nothing
*/
int same_addr = memcmp(bda, p_le_inq_cb->adv_addr, BD_ADDR_LEN);
if (same_addr != 0 || (same_addr == 0 && evt_type != BTM_BLE_SCAN_RSP_EVT)) {
btm_ble_process_last_adv_pkt();
}
}