/**************************************************************************** * drivers/wireless/ieee802154/xbee/xbee_mac.h * * Copyright (C) 2017 Verge Inc. All rights reserved. * Author: Anthony Merlino * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ #ifndef __DRIVERS_WIRELESS_IEEE802154_XBEE_MAC_H #define __DRIVERS_WIRELESS_IEEE802154_XBEE_MAC_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /**************************************************************************** * Public Types ****************************************************************************/ /* Callback operations to notify the next highest layer of various * asynchronous events, usually triggered by some previous request or * response invoked by the upper layer. */ struct xbee_maccb_s { FAR struct xbee_maccb_s *flink; /* Implements a singly linked list */ uint8_t prio; /* RX frame callback priority */ /* Callback for various MLME or MCPS service events. Return value represents * whether the callback accepts the primitive. >= 0 means the callback has * accepted the primitive and is responsible for calling * ieee802154_primitive_free(). In the case of DATA.indication primitive, only * one callback can accept the frame. The callbacks are stored in order of * receiver priority defined by the 'prio' field above. All other * notifications are offered to all callbacks and all can accept and free * separately since the primitive will not be freed until the nclients count * reaches 0. */ CODE int (*notify)(FAR struct xbee_maccb_s *maccb, FAR struct ieee802154_primitive_s *primitive); }; /**************************************************************************** * Public Data ****************************************************************************/ /**************************************************************************** * Inline Functions ****************************************************************************/ /**************************************************************************** * Public Function Prototypes ****************************************************************************/ /**************************************************************************** * Name: xbee_bind * * Description: * Bind the XBee callback table to the MAC state. * * Input Parameters: * xbee - Reference to the XBee driver state structure * cb - XBee callback operations * * Returned Value: * OK on success; Negated errno on failure. * ****************************************************************************/ int xbee_bind(XBEEHANDLE xbee, FAR struct xbee_maccb_s *cb); /**************************************************************************** * Name: xbee_ioctl * * Description: * Handle MAC and radio IOCTL commands directed to the XBee device. * * Input Parameters: * mac - Reference to the Xbee driver state structure * cmd - The IOCTL command * arg - The argument for the IOCTL command * * Returned Value: * OK on success; Negated errno on failure. * ****************************************************************************/ int xbee_ioctl(XBEEHANDLE xbee, int cmd, unsigned long arg); /**************************************************************************** * MAC Interface Operations ****************************************************************************/ /**************************************************************************** * Name: xbee_get_mhrlen * * Description: * Calculate the MAC header length given the frame meta-data. For the XBee, * we use the header to store the entire API frame for the TX request. The * size we need is fixed based on the address mode we are using as it changes * which API frame we need to issue. * ****************************************************************************/ int xbee_get_mhrlen(XBEEHANDLE xbee, FAR const struct ieee802154_frame_meta_s *meta); /**************************************************************************** * Name: xbee_req_data * * Description: * The MCPS-DATA.request primitive requests the transfer of a data SPDU * (i.e., MSDU) from a local SSCS entity to a single peer SSCS entity. * Confirmation is returned via the * struct xbee_maccb_s->conf_data callback. * ****************************************************************************/ int xbee_req_data(XBEEHANDLE xbee, FAR const struct ieee802154_frame_meta_s *meta, FAR struct iob_s *frame); /**************************************************************************** * Name: xbee_req_get * * Description: * The MLME-GET.request primitive requests information about a given PIB * attribute. * * NOTE: The standard specifies that the attribute value should be returned * via the asynchronous MLME-GET.confirm primitve. However, in our * implementation, we synchronously return the value immediately.Therefore, we * merge the functionality of the MLME-GET.request and MLME-GET.confirm * primitives together. * ****************************************************************************/ int xbee_req_get(XBEEHANDLE xbee, enum ieee802154_attr_e attr, FAR union ieee802154_attr_u *attrval); /**************************************************************************** * Name: xbee_req_set * * Description: * The MLME-SET.request primitive attempts to write the given value to the * indicated MAC PIB attribute. * * NOTE: The standard specifies that confirmation should be indicated via * the asynchronous MLME-SET.confirm primitve. However, in our implementation * we synchronously return the status from the request. Therefore, we do merge * the functionality of the MLME-SET.request and MLME-SET.confirm primitives * together. * ****************************************************************************/ int xbee_req_set(XBEEHANDLE xbee, enum ieee802154_attr_e attr, FAR const union ieee802154_attr_u *attrval); /**************************************************************************** * Name: xbee_req_start * * Description: * The MLME-START.request primitive makes a request for the device to start * acting as a coordinator. The XBee modules do not support beacon-enabled * networking! * ****************************************************************************/ int xbee_req_start(XBEEHANDLE xbee, FAR struct ieee802154_start_req_s *req); /**************************************************************************** * Name: xbee_req_associate * * Description: * The MLME-ASSOCIATE.request primitive allows a device to request an * association with a coordinator. * * On receipt of the MLME-ASSOCIATE.request primitive, the MLME of an * unassociated device first updates the appropriate PHY and MAC PIB * attributes, as described in 5.1.3.1, and then generates an association * request command, as defined in 5.3.1 [1] pg.80 * ****************************************************************************/ int xbee_req_associate(XBEEHANDLE xbee, FAR struct ieee802154_assoc_req_s *req); /**************************************************************************** * Name: xbee_req_reset * * Description: * The MLME-RESET.request primitive allows the next higher layer to request * that the MLME performs a reset operation. * * Input Parameters: * xbee - Handle to the XBee instance * resetattr - Whether or not to reset the MAC PIB attributes to defaults * ****************************************************************************/ int xbee_req_reset(XBEEHANDLE xbee, bool resetattr); #endif /* __DRIVERS_WIRELESS_IEEE802154_XBEE_MAC_H */