50  *  2) Should we create pool of control pdu's?. Dont need more
56  *  the pdu or it does not support data length extension, the LL_UNKNOWN_RSP
57  *  pdu is sent. That needs to be processed...
76  * This array contains the length of the CtrData field in LL control PDU's.
78  * control PDU, so total data channel payload length for the control pdu is
152  * Create a LL_REJECT_EXT_IND pdu.
156  * @param ctrdata: Pointer to where CtrData starts in pdu
216  * Process a received LL_PING_RSP control pdu.
360  * Called to make a connection update request LL control PDU
673  * Create a LL_PHY_UPDATE_IND pdu
677  * @param ctrdata: Pointer to where CtrData of UPDATE_IND pdu starts
690     /* Get preferences from PDU */  in ble_ll_ctrl_phy_update_ind_make()
759  * Create a LL_PHY_REQ or LL_PHY_RSP pdu
762  * @param ctrdata: Pointer to where CtrData starts in pdu
804              * make the LL_PHY_UPDATE_IND pdu might clear the flag.  in ble_ll_ctrl_rx_phy_req()
849  * Process a received LL_PHY_RSP pdu
887  * Called when a LL_PHY_UPDATE_IND pdu is received
974  * Create a link layer length request or length response PDU.
976  * NOTE: this function does not set the LL data pdu header nor does it
980  * @param dptr: Pointer to where control pdu payload starts
1031  * Called to determine if this is a control PDU we are allowed to send. This
1032  * is called when a link is being encrypted, as only certain control PDU's
1035  * XXX: the current code may actually allow some control pdu's to be sent
1175  * Create a link layer control "encrypt request" PDU.
1177  * The LL_ENC_REQ PDU format is:
1186  * NOTE: this function does not set the LL data pdu header nor does it
1190  * @param dptr: Pointer to where control pdu payload starts
1247  * Called when we have received a LL control encryption request PDU. This
1250  * The LL_ENC_REQ PDU format is:
1260  * NOTE: if this is received by a master we will silently discard the PDU
1348  * Called when a LL control pdu with opcode PAUSE_ENC_RSP is received.
1416  * Called to make a connection parameter request or response control pdu.
1479  * Called to make a LL control channel map request PDU.
1482  * @param pyld      Pointer to payload of LL control PDU
1500  * Called to respond to a LL control PDU connection parameter request or
1520         /* Create a connection update pdu */  in ble_ll_ctrl_conn_param_reply()
1530  * layer control Data Channel pdu.
1543     /* Get error out of received PDU */  in ble_ll_ctrl_rx_reject_ind()
1714      * remaining octets are features of controller which sends PDU, in this case  in ble_ll_ctrl_rx_feature_req()
1845  * Called to process the LL control PDU VERSION_IND
1882  * Called to process a received channel map request control pdu.
1916  * This function is called to obtain a mbuf to send a LL control PDU. The data
1917  * channel PDU header is not part of the mbuf data; it is part of the BLE
1934     /* Get an mbuf for the control pdu */  in ble_ll_ctrl_proc_init()
2014  * Called to determine if the pdu is a TERMINATE_IND
2144              * able to start it right away (no control pdu was available).  in ble_ll_ctrl_chk_proc_start()
2179  * Called when the Link Layer receives a LL control PDU.
2181  * NOTE: this function uses the received PDU for the response in some cases. If
2182  * the received PDU is not used it needs to be freed here.
2185  * pdu should be received by that role. Might make for less code...
2214      * first byte of the Data Channel PDU header. Get length from header and  in ble_ll_ctrl_rx_pdu()
2215      * opcode from LL control PDU.  in ble_ll_ctrl_rx_pdu()
2223      * contain the Data Channel PDU. Thus, the first byte of rspbuf is the  in ble_ll_ctrl_rx_pdu()
2224      * LL control PDU payload (the opcode of the control PDU). rspdata  in ble_ll_ctrl_rx_pdu()
2225      * points to CtrData in the control PDU.  in ble_ll_ctrl_rx_pdu()
2230     /* Move data pointer to start of control data (2 byte PDU hdr + opcode) */  in ble_ll_ctrl_rx_pdu()
2301                 /* Construct unknown rsp pdu */  in ble_ll_ctrl_rx_pdu()
2450          * response, put opcode of unknown pdu into buffer.  in ble_ll_ctrl_rx_pdu()
2470  * Called to create and send a REJECT_IND_EXT control PDU or a REJECT_IND
2516  * Called when a Link Layer Control pdu has been transmitted successfully.
2517  * This is called when we have a received a PDU during the ISR.