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removed bitfields for compatibility with cc65
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@ -44,7 +44,7 @@
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: frame802154.c,v 1.1 2009/04/06 13:19:03 nifi Exp $
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* $Id: frame802154.c,v 1.2 2009/04/09 21:54:09 nifi Exp $
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*/
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/*
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* \brief This file is where the main functions that relate to frame
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@ -99,15 +99,16 @@ field_len(frame802154_t *p, field_length_t *flen)
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memset(flen, 0, sizeof(field_length_t));
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/* Determine lengths of each field based on fcf and other args */
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if(p->fcf.dest_addr_mode) {
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if(p->fcf.dest_addr_mode & 3) {
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flen->dest_pid_len = 2;
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}
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if(p->fcf.src_addr_mode) {
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if(p->fcf.src_addr_mode & 3) {
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flen->src_pid_len = 2;
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}
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/* Set PAN ID compression bit if src pan id matches dest pan id. */
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if(p->fcf.dest_addr_mode && p->fcf.src_addr_mode && p->src_pid == p->dest_pid) {
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if(p->fcf.dest_addr_mode & 3 && p->fcf.src_addr_mode & 3 &&
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p->src_pid == p->dest_pid) {
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p->fcf.panid_compression = 1;
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/* compressed header, only do dest pid */
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@ -117,11 +118,11 @@ field_len(frame802154_t *p, field_length_t *flen)
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}
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/* determine address lengths */
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flen->dest_addr_len = addr_len(p->fcf.dest_addr_mode);
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flen->src_addr_len = addr_len(p->fcf.src_addr_mode);
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flen->dest_addr_len = addr_len(p->fcf.dest_addr_mode & 3);
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flen->src_addr_len = addr_len(p->fcf.src_addr_mode & 3);
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/* Aux security header */
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if(p->fcf.security_enabled) {
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if(p->fcf.security_enabled & 1) {
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/* TODO Aux security header not yet implemented */
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#if 0
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switch(p->aux_hdr.security_control.key_id_mode) {
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@ -195,11 +196,14 @@ frame802154_create(frame802154_t *p, uint8_t *buf, uint8_t buf_len)
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/* OK, now we have field lengths. Time to actually construct */
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/* the outgoing frame, and store it in tx_frame_buffer */
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tx_frame_buffer = buf;
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tx_frame_buffer[0] = (p->fcf.frame_type) |
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(p->fcf.security_enabled << 3) | (p->fcf.frame_pending << 4) |
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(p->fcf.ack_required << 5) | (p->fcf.panid_compression << 6);
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tx_frame_buffer[1] = (p->fcf.dest_addr_mode << 2) |
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(p->fcf.frame_version << 4) | (p->fcf.src_addr_mode << 6);
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tx_frame_buffer[0] = (p->fcf.frame_type & 7) |
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((p->fcf.security_enabled & 1) << 3) |
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((p->fcf.frame_pending & 1) << 4) |
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((p->fcf.ack_required & 1) << 5) |
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((p->fcf.panid_compression & 1) << 6);
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tx_frame_buffer[1] = ((p->fcf.dest_addr_mode & 3) << 2) |
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((p->fcf.frame_version & 3) << 4) |
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((p->fcf.src_addr_mode & 3) << 6);
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/* sequence number */
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tx_frame_buffer[2] = p->seq;
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@ -54,7 +54,7 @@
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* This file converts to and from a structure to a packed 802.15.4
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* frame.
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*
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* $Id: frame802154.h,v 1.1 2009/04/06 13:19:03 nifi Exp $
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* $Id: frame802154.h,v 1.2 2009/04/09 21:54:09 nifi Exp $
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*/
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@ -114,27 +114,26 @@
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* 5. CRC - 2 bytes - Fixed
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*/
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/**
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* \brief Defines the bitfields of the frame control field (FCF).
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*/
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typedef struct {
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uint8_t frame_type : 3; /**< Frame type field, see 802.15.4 */
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uint8_t security_enabled : 1; /**< True if security is used in this frame */
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uint8_t frame_pending : 1; /**< True if sender has more data to send */
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uint8_t ack_required : 1; /**< Is an ack frame required? */
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uint8_t panid_compression : 1; /**< Is this a compressed header? */
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uint8_t reserved : 3; /**< Unused bits */
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uint8_t dest_addr_mode : 2; /**< Destination address mode, see 802.15.4 */
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uint8_t frame_version : 2; /**< 802.15.4 frame version */
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uint8_t src_addr_mode : 2; /**< Source address mode, see 802.15.4 */
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uint8_t frame_type; /**< 3 bit. Frame type field, see 802.15.4 */
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uint8_t security_enabled; /**< 1 bit. True if security is used in this frame */
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uint8_t frame_pending; /**< 1 bit. True if sender has more data to send */
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uint8_t ack_required; /**< 1 bit. Is an ack frame required? */
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uint8_t panid_compression; /**< 1 bit. Is this a compressed header? */
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/* uint8_t reserved; */ /**< 3 bit. Unused bits */
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uint8_t dest_addr_mode; /**< 2 bit. Destination address mode, see 802.15.4 */
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uint8_t frame_version; /**< 2 bit. 802.15.4 frame version */
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uint8_t src_addr_mode; /**< 2 bit. Source address mode, see 802.15.4 */
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} frame802154_fcf_t;
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/** \brief 802.15.4 security control bitfield. See section 7.6.2.2.1 in 802.15.4 specification */
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typedef struct {
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uint8_t security_level : 3; /**< security level */
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uint8_t key_id_mode : 2; /**< Key identifier mode */
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uint8_t reserved : 3; /**< Reserved bits */
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uint8_t security_level; /**< 3 bit. security level */
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uint8_t key_id_mode; /**< 2 bit. Key identifier mode */
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uint8_t reserved; /**< 3 bit. Reserved bits */
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} frame802154_scf_t;
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/** \brief 802.15.4 Aux security header */
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