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component/bt: recovery the scan parameter to the controller before start scan.

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This commit is contained in:
Yulong 2017-11-23 06:36:00 -05:00
parent f14699068d
commit 2458d15d2d
1 changed files with 23 additions and 29 deletions
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52
components/bt/bluedroid/stack/btm/btm_ble_gap.c
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@ -467,20 +467,6 @@ tBTM_STATUS BTM_BleScan(BOOLEAN start, UINT32 duration,
/* enable resolving list */
btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN);
#endif
// if not set scan params, set defalult scan params
if (!p_inq->scan_params_set)
{
/* allow config of scan type */
p_inq->scan_type = BTM_BLE_SCAN_MODE_ACTI;
p_inq->scan_interval = BTM_BLE_GAP_DISC_SCAN_INT;
p_inq->scan_window = BTM_BLE_GAP_DISC_SCAN_WIN;
p_inq->sfp = BTM_BLE_DEFAULT_SFP;
p_inq->scan_params_set = TRUE;
btsnd_hcic_ble_set_scan_params(p_inq->scan_type, p_inq->scan_interval,
p_inq->scan_window,
btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
p_inq->sfp);
}
p_inq->scan_duplicate_filter = BTM_BLE_DUPLICATE_DISABLE;
status = btm_ble_start_scan();
}
@ -3061,6 +3047,25 @@ static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt
}
}
static void btm_ble_recover_scan_params(void)
{
tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
if (p_inq->scan_params_set) {
/// set back the scan params to the controller after stop the scan
btsnd_hcic_ble_set_scan_params(p_inq->scan_type, p_inq->scan_interval,
p_inq->scan_window,
btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
p_inq->sfp);
} else {
/// set the default value if the scan params not set yet
btm_update_scanner_filter_policy(SP_ADV_ALL);
btm_cb.ble_ctr_cb.wl_state &= ~BTM_BLE_WL_SCAN;
}
}
/*******************************************************************************
**
** Function btm_ble_start_scan
@ -3074,7 +3079,8 @@ tBTM_STATUS btm_ble_start_scan(void)
{
tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
tBTM_STATUS status = BTM_CMD_STARTED;
// recoverly the scan parameters to the controller before start scan
btm_ble_recover_scan_params();
/* start scan, disable duplicate filtering */
if (!btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_ENABLE, p_inq->scan_duplicate_filter)) {
status = BTM_NO_RESOURCES;
@ -3192,7 +3198,6 @@ static void btm_ble_stop_discover(void)
{
tBTM_BLE_CB *p_ble_cb = & btm_cb.ble_ctr_cb;
tBTM_CMPL_CB *p_scan_cb = p_ble_cb->p_scan_cmpl_cb;
tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
btu_stop_timer (&p_ble_cb->scan_timer_ent);
p_ble_cb->scan_activity &= ~BTM_LE_DISCOVER_ACTIVE;
@ -3206,19 +3211,8 @@ static void btm_ble_stop_discover(void)
btm_cb.ble_ctr_cb.inq_var.state = BTM_BLE_STOP_SCAN;
/* stop discovery now */
btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE);
if (p_inq->scan_params_set) {
/// set back the scan params to the controller after stop the scan
btsnd_hcic_ble_set_scan_params(p_inq->scan_type, p_inq->scan_interval,
p_inq->scan_window,
btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
p_inq->sfp);
} else {
/// set the default value if the scan params not set yet
btm_update_scanner_filter_policy(SP_ADV_ALL);
btm_cb.ble_ctr_cb.wl_state &= ~BTM_BLE_WL_SCAN;
}
// recoverly the scan parameters to the controller after stop scan
btm_ble_recover_scan_params();
}
if (p_scan_cb) {