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gap: fix gap_scan_params if called before stack has started up, preserve scan type

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This commit is contained in:
Matthias Ringwald 2020-08-17 17:23:46 +02:00
parent a7a719e99a
commit 8b69e4c72c
2 changed files with 10 additions and 16 deletions
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24
src/hci.c
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@ -1531,9 +1531,8 @@ static void hci_initializing_run(void){
hci_send_cmd(&hci_le_read_white_list_size);
break;
case HCI_INIT_LE_SET_SCAN_PARAMETERS:
// LE Scan Parameters: active scanning, 300 ms interval, 30 ms window, own address type, accept all advs
hci_stack->substate = HCI_INIT_W4_LE_SET_SCAN_PARAMETERS;
hci_send_cmd(&hci_le_set_scan_parameters, 1, hci_stack->le_scan_interval, hci_stack->le_scan_window, hci_stack->le_own_addr_type, 0);
hci_send_cmd(&hci_le_set_scan_parameters, hci_stack->le_scan_type, hci_stack->le_scan_interval, hci_stack->le_scan_window, hci_stack->le_own_addr_type, hci_stack->le_scan_filter_policy);
break;
#endif
default:
@ -2966,11 +2965,8 @@ static void hci_state_reset(void){
#endif
#ifdef ENABLE_LE_CENTRAL
hci_stack->le_scanning_active = 0;
hci_stack->le_scan_type = 0xff;
hci_stack->le_scan_filter_policy = 0;
hci_stack->le_connecting_state = LE_CONNECTING_IDLE;
hci_stack->le_connecting_request = LE_CONNECTING_IDLE;
hci_stack->le_whitelist = 0;
hci_stack->le_whitelist_capacity = 0;
#endif
}
@ -3063,8 +3059,9 @@ void hci_init(const hci_transport_t *transport, const void *config){
hci_stack->le_maximum_ce_length = 0x0030; // 30 ms
// default LE Scanning
hci_stack->le_scan_interval = 0x1e0;
hci_stack->le_scan_window = 0x30;
hci_stack->le_scan_type = 0x1; // active
hci_stack->le_scan_interval = 0x1e0; // 300 ms
hci_stack->le_scan_window = 0x30; // 30 ms
#endif
#ifdef ENABLE_LE_PERIPHERAL
@ -3636,7 +3633,7 @@ static bool hci_run_general_gap_le(void){
// - it's disabled
// - whitelist change required but used for scanning
bool scanning_uses_whitelist = (hci_stack->le_scan_filter_policy & 1) == 1;
if ((hci_stack->le_scan_type != 0xffu) || !hci_stack->le_scanning_enabled || scanning_uses_whitelist){
if ((hci_stack->le_scanning_param_update) || !hci_stack->le_scanning_enabled || scanning_uses_whitelist){
scanning_stop = false;
}
}
@ -3647,10 +3644,9 @@ static bool hci_run_general_gap_le(void){
return true;
}
if (hci_stack->le_scan_type != 0xffu){
int scan_type = (int) hci_stack->le_scan_type;
hci_stack->le_scan_type = 0xff;
hci_send_cmd(&hci_le_set_scan_parameters, scan_type, hci_stack->le_scan_interval, hci_stack->le_scan_window,
if (hci_stack->le_scanning_param_update){
hci_stack->le_scanning_param_update = false;
hci_send_cmd(&hci_le_set_scan_parameters, hci_stack->le_scan_type, hci_stack->le_scan_interval, hci_stack->le_scan_window,
hci_stack->le_own_addr_type, hci_stack->le_scan_filter_policy);
return true;
}
@ -4947,6 +4943,7 @@ void gap_set_scan_params(uint8_t scan_type, uint16_t scan_interval, uint16_t sca
hci_stack->le_scan_filter_policy = scanning_filter_policy;
hci_stack->le_scan_interval = scan_interval;
hci_stack->le_scan_window = scan_window;
hci_stack->le_scanning_param_update = true;
hci_run();
}
@ -5281,9 +5278,6 @@ uint8_t gap_le_set_phy(hci_con_handle_t connection_handle, uint8_t all_phys, uin
}
static uint8_t hci_whitelist_add(bd_addr_type_t address_type, bd_addr_t address){
// check capacity
int num_entries = btstack_linked_list_count(&hci_stack->le_whitelist);
if (num_entries >= hci_stack->le_whitelist_capacity) return ERROR_CODE_MEMORY_CAPACITY_EXCEEDED;
whitelist_entry_t * entry = btstack_memory_whitelist_entry_get();
if (!entry) return BTSTACK_MEMORY_ALLOC_FAILED;
entry->address_type = address_type;

2
src/hci.h
View File

@ -896,7 +896,7 @@ typedef struct {
le_connecting_state_t le_connecting_state;
le_connecting_state_t le_connecting_request;
// buffer for le scan type command - 0xff not set
bool le_scanning_param_update;
uint8_t le_scan_type;
uint8_t le_scan_filter_policy;
uint16_t le_scan_interval;