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removed bitfields for compatibility with cc65

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This commit is contained in:
nifi 2009-04-09 21:54:09 +00:00
parent 73d5025e04
commit 84b38de494
2 changed files with 29 additions and 26 deletions
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28
core/net/mac/frame802154.c
View file

@ -44,7 +44,7 @@
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $Id: frame802154.c,v 1.1 2009/04/06 13:19:03 nifi Exp $
* $Id: frame802154.c,v 1.2 2009/04/09 21:54:09 nifi Exp $
*/
/*
* \brief This file is where the main functions that relate to frame
@ -99,15 +99,16 @@ field_len(frame802154_t *p, field_length_t *flen)
memset(flen, 0, sizeof(field_length_t));
/* Determine lengths of each field based on fcf and other args */
if(p->fcf.dest_addr_mode) {
if(p->fcf.dest_addr_mode & 3) {
flen->dest_pid_len = 2;
}
if(p->fcf.src_addr_mode) {
if(p->fcf.src_addr_mode & 3) {
flen->src_pid_len = 2;
}
/* Set PAN ID compression bit if src pan id matches dest pan id. */
if(p->fcf.dest_addr_mode && p->fcf.src_addr_mode && p->src_pid == p->dest_pid) {
if(p->fcf.dest_addr_mode & 3 && p->fcf.src_addr_mode & 3 &&
p->src_pid == p->dest_pid) {
p->fcf.panid_compression = 1;
/* compressed header, only do dest pid */
@ -117,11 +118,11 @@ field_len(frame802154_t *p, field_length_t *flen)
}
/* determine address lengths */
flen->dest_addr_len = addr_len(p->fcf.dest_addr_mode);
flen->src_addr_len = addr_len(p->fcf.src_addr_mode);
flen->dest_addr_len = addr_len(p->fcf.dest_addr_mode & 3);
flen->src_addr_len = addr_len(p->fcf.src_addr_mode & 3);
/* Aux security header */
if(p->fcf.security_enabled) {
if(p->fcf.security_enabled & 1) {
/* TODO Aux security header not yet implemented */
#if 0
switch(p->aux_hdr.security_control.key_id_mode) {
@ -195,11 +196,14 @@ frame802154_create(frame802154_t *p, uint8_t *buf, uint8_t buf_len)
/* OK, now we have field lengths. Time to actually construct */
/* the outgoing frame, and store it in tx_frame_buffer */
tx_frame_buffer = buf;
tx_frame_buffer[0] = (p->fcf.frame_type) |
(p->fcf.security_enabled << 3) | (p->fcf.frame_pending << 4) |
(p->fcf.ack_required << 5) | (p->fcf.panid_compression << 6);
tx_frame_buffer[1] = (p->fcf.dest_addr_mode << 2) |
(p->fcf.frame_version << 4) | (p->fcf.src_addr_mode << 6);
tx_frame_buffer[0] = (p->fcf.frame_type & 7) |
((p->fcf.security_enabled & 1) << 3) |
((p->fcf.frame_pending & 1) << 4) |
((p->fcf.ack_required & 1) << 5) |
((p->fcf.panid_compression & 1) << 6);
tx_frame_buffer[1] = ((p->fcf.dest_addr_mode & 3) << 2) |
((p->fcf.frame_version & 3) << 4) |
((p->fcf.src_addr_mode & 3) << 6);
/* sequence number */
tx_frame_buffer[2] = p->seq;

27
core/net/mac/frame802154.h
View file

@ -54,7 +54,7 @@
* This file converts to and from a structure to a packed 802.15.4
* frame.
*
* $Id: frame802154.h,v 1.1 2009/04/06 13:19:03 nifi Exp $
* $Id: frame802154.h,v 1.2 2009/04/09 21:54:09 nifi Exp $
*/
@ -114,27 +114,26 @@
* 5. CRC - 2 bytes - Fixed
*/
/**
* \brief Defines the bitfields of the frame control field (FCF).
*/
typedef struct {
uint8_t frame_type : 3; /**< Frame type field, see 802.15.4 */
uint8_t security_enabled : 1; /**< True if security is used in this frame */
uint8_t frame_pending : 1; /**< True if sender has more data to send */
uint8_t ack_required : 1; /**< Is an ack frame required? */
uint8_t panid_compression : 1; /**< Is this a compressed header? */
uint8_t reserved : 3; /**< Unused bits */
uint8_t dest_addr_mode : 2; /**< Destination address mode, see 802.15.4 */
uint8_t frame_version : 2; /**< 802.15.4 frame version */
uint8_t src_addr_mode : 2; /**< Source address mode, see 802.15.4 */
uint8_t frame_type; /**< 3 bit. Frame type field, see 802.15.4 */
uint8_t security_enabled; /**< 1 bit. True if security is used in this frame */
uint8_t frame_pending; /**< 1 bit. True if sender has more data to send */
uint8_t ack_required; /**< 1 bit. Is an ack frame required? */
uint8_t panid_compression; /**< 1 bit. Is this a compressed header? */
/* uint8_t reserved; */ /**< 3 bit. Unused bits */
uint8_t dest_addr_mode; /**< 2 bit. Destination address mode, see 802.15.4 */
uint8_t frame_version; /**< 2 bit. 802.15.4 frame version */
uint8_t src_addr_mode; /**< 2 bit. Source address mode, see 802.15.4 */
} frame802154_fcf_t;
/** \brief 802.15.4 security control bitfield. See section 7.6.2.2.1 in 802.15.4 specification */
typedef struct {
uint8_t security_level : 3; /**< security level */
uint8_t key_id_mode : 2; /**< Key identifier mode */
uint8_t reserved : 3; /**< Reserved bits */
uint8_t security_level; /**< 3 bit. security level */
uint8_t key_id_mode; /**< 2 bit. Key identifier mode */
uint8_t reserved; /**< 3 bit. Reserved bits */
} frame802154_scf_t;
/** \brief 802.15.4 Aux security header */