Esempio n. 1
0
void l2cap_hand_out_credits(void){

    if (new_credits_blocked) return;    // we're told not to. used by daemon
    
    linked_item_t *it;
    for (it = (linked_item_t *) l2cap_channels; it ; it = it->next){
        if (!hci_number_free_acl_slots()) return;
        l2cap_channel_t * channel = (l2cap_channel_t *) it;
        if (channel->state != L2CAP_STATE_OPEN) continue;
        if (hci_number_outgoing_packets(channel->handle) < NR_BUFFERED_ACL_PACKETS && channel->packets_granted == 0) {
            l2cap_emit_credits(channel, 1);
        }
    }
}
Esempio n. 2
0
File: hci.c Progetto: ajsb85/ioio
int hci_send_acl_packet(uint8_t *packet, int size){

    // check for free places on BT module
    if (!hci_number_free_acl_slots()) return BTSTACK_ACL_BUFFERS_FULL;
    
    hci_con_handle_t con_handle = READ_ACL_CONNECTION_HANDLE(packet);
    hci_connection_t *connection = connection_for_handle( con_handle);
    if (!connection) return 0;
    hci_connection_timestamp(connection);
    
    // count packet
    connection->num_acl_packets_sent++;
    // log_info("hci_send_acl_packet - handle %u, sent %u\n", connection->con_handle, connection->num_acl_packets_sent);

    // send packet 
    int err = hci_stack.hci_transport->send_packet(HCI_ACL_DATA_PACKET, packet, size);
    
    return err;
}
Esempio n. 3
0
File: hci.c Progetto: ajsb85/ioio
int hci_can_send_packet_now(uint8_t packet_type){

    // check for async hci transport implementations
    if (hci_stack.hci_transport->can_send_packet_now){
        if (!hci_stack.hci_transport->can_send_packet_now(packet_type)){
            return 0;
        }
    }
    
    // check regular Bluetooth flow control
    switch (packet_type) {
        case HCI_ACL_DATA_PACKET:
            return hci_number_free_acl_slots();
        case HCI_COMMAND_DATA_PACKET:
            return hci_stack.num_cmd_packets;
        default:
            return 0;
    }
}