+++ /dev/null
-/**
- * Copyright (c) 2004,2005 Hewlett-Packard Company
- * All rights reserved
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
-
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- * * Neither the name of the Hewlett-Packard Company 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.
- *
- * Simple message format for exchanging network data.
- * We use the 'start' index to allow messages to have data
- * prepended.
- *
- * Each message contains a 'next' field, which allows us
- * to maintain queues.
- *
- * Note that we encode 16 and 32 bit values in network byte
- * order, which is MSB (most significant byte) first.
- *
- * However, 802.15.4 multibyte fields are always encoded LSB,
- * or least significant byte first. The Chipcon radio also
- * stores values LSB, as does the TI MSP processor.
- * This really only shows up when we are setting the PanID and
- * short address of our messages.
- *
- * @author Andrew Christian
- */
-
-#ifndef _MESSAGE_H
-#define _MESSAGE_H
-
-
-#define MESSAGE_MAX_LENGTH 128
-
-struct Message {
- uint8_t data[ MESSAGE_MAX_LENGTH ];
- uint8_t start;
- uint8_t length;
- struct Message *next;
-};
-
-/*
- * this is useful for tracking down allocs w/out frees. add a uint8_t who to the Message structure and then see who holds
- * all the messages using param...
-#ifdef DEBUG_MESSAGE
-enum {
- MSG_WHO_FREE=0,
- MSG_WHO_CLIENT_HAWR,
- MSG_WHO_CLIENT_HSNOOZET,
- MSG_WHO_CLIENT_AR,
- MSG_WHO_CLIENT_HSCANT,
- MSG_WHO_CC2420H_DELAYEDRXFIFO,
- MSG_WHO_UIP_SENDMESSAGE,
- MSG_WHO_UIP_SENDUDPMESSAGE
-};
-#endif
-*/
-
-
-/**
- * Message manipulation functions.
- *
- * All integers are sent in network byte order - MSB first
- */
-
-inline void msg_set_uint8( struct Message *msg, uint8_t offset, uint8_t data )
-{
- uint8_t i = msg->start + offset;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[ i] = data;
-}
-
-inline void msg_set_uint16( struct Message *msg, uint8_t offset, uint16_t data )
-{
- uint8_t i = msg->start + offset;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff00) >> 8;
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff);
-}
-
-inline void msg_set_saddr( struct Message *msg, uint8_t offset, uint16_t data )
-{
- uint8_t i = msg->start + offset;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff);
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff00) >> 8;
-}
-
-inline void msg_set_uint32( struct Message *msg, uint8_t offset, uint32_t data )
-{
- uint8_t i = msg->start + offset;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff000000) >> 24;
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0x00ff0000) >> 16;
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0x0000ff00) >> 8;
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff);
-}
-
-inline void msg_set_buf( struct Message *msg, uint8_t offset, const uint8_t *buf, uint8_t len )
-{
- uint8_t i = msg->start + offset;
- for ( ; len ; len--, i++ ) {
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = *buf++;
- }
-}
-
-inline uint8_t msg_get_uint8( const struct Message *msg, uint8_t offset )
-{
- uint8_t i = msg->start + offset;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- return msg->data[ i ];
-}
-
-inline int8_t msg_get_int8( const struct Message *msg, uint8_t offset )
-{
- uint8_t i = msg->start + offset;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- return ((int8_t *)(msg->data))[ i ];
-}
-
-inline uint16_t msg_get_uint16( const struct Message *msg, uint8_t offset )
-{
- uint8_t i = msg->start + offset;
- uint16_t result;
-
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- result = (msg->data[i] << 8);
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- result |= msg->data[i];
- return result;
-}
-
-inline uint16_t msg_get_saddr( const struct Message *msg, uint8_t offset )
-{
- uint8_t i = msg->start + offset;
- uint16_t result;
-
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- result = msg->data[i];
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- result |= (msg->data[i] << 8);
- return result;
-}
-
-inline void msg_get_buf( const struct Message *msg, uint8_t offset, uint8_t *buf, uint8_t len )
-{
- uint8_t i = msg->start + offset;
- for ( ; len ; len--, i++ ) {
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- *buf++ = msg->data[i];
- }
-}
-
-inline void msg_get_str( const struct Message *msg, uint8_t offset, uint8_t *str, uint8_t len )
-{
- uint8_t i = msg->start + offset;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
-
- while (--len && msg->data[i] ) {
- *str++ = msg->data[i++];
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- }
-
- *str = 0;
-}
-
-inline bool msg_cmp_buf( const struct Message *msg, uint8_t offset, const uint8_t *buf, uint8_t len )
-{
- uint8_t i = msg->start + offset;
- for ( ; len ; len--, i++ ) {
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- if ( *buf++ != msg->data[i])
- return FALSE;
- }
- return TRUE;
-}
-
-inline bool msg_cmp_str( const struct Message *msg, uint8_t offset, const uint8_t *buf )
-{
- uint8_t i = msg->start + offset;
- while (1) {
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- if ( *buf++ != msg->data[i])
- return FALSE;
- if ( msg->data[i] == 0 )
- return TRUE;
- i++;
- }
- return TRUE;
-}
-
-inline void msg_append_uint8( struct Message *msg, uint8_t data )
-{
- uint8_t i = msg->start + msg->length;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
-
- msg->data[ i ] = data;
- msg->length++;
-}
-
-inline void msg_append_uint16( struct Message *msg, uint16_t data )
-{
- uint8_t i = msg->start + msg->length;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff00) >> 8;
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff);
- msg->length += 2;
-}
-
-inline void msg_append_saddr( struct Message *msg, uint16_t data )
-{
- uint8_t i = msg->start + msg->length;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff);
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff00) >> 8;
- msg->length += 2;
-}
-
-inline void msg_append_uint32( struct Message *msg, uint32_t data )
-{
- uint8_t i = msg->start + msg->length;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff000000) >> 24;
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0x00ff0000) >> 16;
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0x0000ff00) >> 8;
- if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = (data & 0xff);
- msg->length += 4;
-}
-
-inline void msg_append_buf( struct Message *msg, const uint8_t *buf, uint8_t len )
-{
- uint8_t i = msg->start + msg->length;
- msg->length += len;
- for ( ; len ; len--, i++ ) {
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = *buf++;
- }
-}
-
-inline void msg_append_str( struct Message *msg, const uint8_t *str )
-{
- uint8_t i = msg->start + msg->length;
- for ( ; *str ; i++ ) {
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = *str++;
- msg->length++;
- }
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- msg->data[i] = 0;
- msg->length++;
-}
-
-inline void msg_prepend_uint8( struct Message *msg, uint8_t data )
-{
- msg->length++;
- if ( msg->start == 0 )
- msg->start = MESSAGE_MAX_LENGTH - 1;
- else
- msg->start--;
-
- msg->data[ msg->start ] = data;
-}
-
-inline void msg_add_to_front( struct Message *msg, uint8_t count )
-{
- if ( msg->start < count )
- msg->start = MESSAGE_MAX_LENGTH - count + msg->start;
- else
- msg->start -= count;
- msg->length += count;
-}
-
-inline void msg_drop_from_front( struct Message *msg, uint8_t count )
-{
- msg->start += count;
- if ( msg->start >= MESSAGE_MAX_LENGTH ) msg->start -= MESSAGE_MAX_LENGTH;
- msg->length -= count;
-}
-
-inline void msg_add_to_end( struct Message *msg, uint8_t count )
-{
- msg->length += count;
-}
-
-inline void msg_drop_from_end( struct Message *msg, uint8_t count )
-{
- msg->length -= count;
-}
-
-inline uint8_t * msg_get_pointer( struct Message *msg, uint8_t offset )
-{
- uint8_t i = msg->start + offset;
- if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
- return msg->data + i;
-}
-
-inline void msg_clear( struct Message *msg )
-{
- msg->length = 0;
- msg->start = 0;
-}
-
-inline void msg_set_length( struct Message *msg, uint8_t len ) { msg->length = len; }
-inline uint8_t msg_get_length( const struct Message *msg ) { return msg->length; }
-inline uint8_t msg_get_max_length( void ) { return MESSAGE_MAX_LENGTH; }
-
-/**
- * Message queue functions. Message queues are simple
- * linked lists.
- */
-
-inline struct Message * pop_queue( struct Message **head )
-{
- struct Message *result = *head;
- if ( result != NULL )
- *head = (*head)->next;
- return result;
-}
-
-inline void push_queue( struct Message **head, struct Message *item )
-{
- item->next = *head;
- *head = item;
-}
-
-inline void append_queue( struct Message **head, struct Message *item )
-{
- if (*head == NULL) {
- *head = item;
- }
- else {
- struct Message *bm = *head;
- while ( bm->next != NULL )
- bm = bm->next;
- bm->next = item;
- }
- item->next = NULL;
-}
-
-inline uint8_t count_queue( struct Message *head )
-{
- uint8_t count = 0;
- while ( head ) {
- count++;
- head = head->next;
- }
- return count;
-}
-
-#endif // _BASIC_MESSAGE_H
--- /dev/null
+/**
+ * Copyright (c) 2004,2005 Hewlett-Packard Company
+ * All rights reserved
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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.
+ * * Neither the name of the Hewlett-Packard Company 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.
+ *
+ * Simple message format for exchanging network data.
+ * We use the 'start' index to allow messages to have data
+ * prepended.
+ *
+ * Each message contains a 'next' field, which allows us
+ * to maintain queues.
+ *
+ * Note that we encode 16 and 32 bit values in network byte
+ * order, which is MSB (most significant byte) first.
+ *
+ * However, 802.15.4 multibyte fields are always encoded LSB,
+ * or least significant byte first. The Chipcon radio also
+ * stores values LSB, as does the TI MSP processor.
+ * This really only shows up when we are setting the PanID and
+ * short address of our messages.
+ *
+ * @author Andrew Christian
+ */
+
+#ifndef _MESSAGE_H
+#define _MESSAGE_H
+
+
+#define MESSAGE_MAX_LENGTH 128
+
+struct Message {
+ uint8_t data[ MESSAGE_MAX_LENGTH ];
+ uint8_t start;
+ uint8_t length;
+ struct Message *next;
+};
+
+/*
+ * this is useful for tracking down allocs w/out frees. add a uint8_t who to the Message structure and then see who holds
+ * all the messages using param...
+#ifdef DEBUG_MESSAGE
+enum {
+ MSG_WHO_FREE=0,
+ MSG_WHO_CLIENT_HAWR,
+ MSG_WHO_CLIENT_HSNOOZET,
+ MSG_WHO_CLIENT_AR,
+ MSG_WHO_CLIENT_HSCANT,
+ MSG_WHO_CC2420H_DELAYEDRXFIFO,
+ MSG_WHO_UIP_SENDMESSAGE,
+ MSG_WHO_UIP_SENDUDPMESSAGE
+};
+#endif
+*/
+
+
+/**
+ * Message manipulation functions.
+ *
+ * All integers are sent in network byte order - MSB first
+ */
+
+inline void msg_set_uint8( struct Message *msg, uint8_t offset, uint8_t data )
+{
+ uint8_t i = msg->start + offset;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[ i] = data;
+}
+
+inline void msg_set_uint16( struct Message *msg, uint8_t offset, uint16_t data )
+{
+ uint8_t i = msg->start + offset;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff00) >> 8;
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff);
+}
+
+inline void msg_set_saddr( struct Message *msg, uint8_t offset, uint16_t data )
+{
+ uint8_t i = msg->start + offset;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff);
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff00) >> 8;
+}
+
+inline void msg_set_uint32( struct Message *msg, uint8_t offset, uint32_t data )
+{
+ uint8_t i = msg->start + offset;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff000000) >> 24;
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0x00ff0000) >> 16;
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0x0000ff00) >> 8;
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff);
+}
+
+inline void msg_set_buf( struct Message *msg, uint8_t offset, const uint8_t *buf, uint8_t len )
+{
+ uint8_t i = msg->start + offset;
+ for ( ; len ; len--, i++ ) {
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = *buf++;
+ }
+}
+
+inline uint8_t msg_get_uint8( const struct Message *msg, uint8_t offset )
+{
+ uint8_t i = msg->start + offset;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ return msg->data[ i ];
+}
+
+inline int8_t msg_get_int8( const struct Message *msg, uint8_t offset )
+{
+ uint8_t i = msg->start + offset;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ return ((int8_t *)(msg->data))[ i ];
+}
+
+inline uint16_t msg_get_uint16( const struct Message *msg, uint8_t offset )
+{
+ uint8_t i = msg->start + offset;
+ uint16_t result;
+
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ result = (msg->data[i] << 8);
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ result |= msg->data[i];
+ return result;
+}
+
+inline uint16_t msg_get_saddr( const struct Message *msg, uint8_t offset )
+{
+ uint8_t i = msg->start + offset;
+ uint16_t result;
+
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ result = msg->data[i];
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ result |= (msg->data[i] << 8);
+ return result;
+}
+
+inline void msg_get_buf( const struct Message *msg, uint8_t offset, uint8_t *buf, uint8_t len )
+{
+ uint8_t i = msg->start + offset;
+ for ( ; len ; len--, i++ ) {
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ *buf++ = msg->data[i];
+ }
+}
+
+inline void msg_get_str( const struct Message *msg, uint8_t offset, uint8_t *str, uint8_t len )
+{
+ uint8_t i = msg->start + offset;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+
+ while (--len && msg->data[i] ) {
+ *str++ = msg->data[i++];
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ }
+
+ *str = 0;
+}
+
+inline bool msg_cmp_buf( const struct Message *msg, uint8_t offset, const uint8_t *buf, uint8_t len )
+{
+ uint8_t i = msg->start + offset;
+ for ( ; len ; len--, i++ ) {
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ if ( *buf++ != msg->data[i])
+ return FALSE;
+ }
+ return TRUE;
+}
+
+inline bool msg_cmp_str( const struct Message *msg, uint8_t offset, const uint8_t *buf )
+{
+ uint8_t i = msg->start + offset;
+ while (1) {
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ if ( *buf++ != msg->data[i])
+ return FALSE;
+ if ( msg->data[i] == 0 )
+ return TRUE;
+ i++;
+ }
+ return TRUE;
+}
+
+inline void msg_append_uint8( struct Message *msg, uint8_t data )
+{
+ uint8_t i = msg->start + msg->length;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+
+ msg->data[ i ] = data;
+ msg->length++;
+}
+
+inline void msg_append_uint16( struct Message *msg, uint16_t data )
+{
+ uint8_t i = msg->start + msg->length;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff00) >> 8;
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff);
+ msg->length += 2;
+}
+
+inline void msg_append_saddr( struct Message *msg, uint16_t data )
+{
+ uint8_t i = msg->start + msg->length;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff);
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff00) >> 8;
+ msg->length += 2;
+}
+
+inline void msg_append_uint32( struct Message *msg, uint32_t data )
+{
+ uint8_t i = msg->start + msg->length;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff000000) >> 24;
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0x00ff0000) >> 16;
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0x0000ff00) >> 8;
+ if ( ++i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = (data & 0xff);
+ msg->length += 4;
+}
+
+inline void msg_append_buf( struct Message *msg, const uint8_t *buf, uint8_t len )
+{
+ uint8_t i = msg->start + msg->length;
+ msg->length += len;
+ for ( ; len ; len--, i++ ) {
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = *buf++;
+ }
+}
+
+inline void msg_append_str( struct Message *msg, const uint8_t *str )
+{
+ uint8_t i = msg->start + msg->length;
+ for ( ; *str ; i++ ) {
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = *str++;
+ msg->length++;
+ }
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ msg->data[i] = 0;
+ msg->length++;
+}
+
+inline void msg_prepend_uint8( struct Message *msg, uint8_t data )
+{
+ msg->length++;
+ if ( msg->start == 0 )
+ msg->start = MESSAGE_MAX_LENGTH - 1;
+ else
+ msg->start--;
+
+ msg->data[ msg->start ] = data;
+}
+
+inline void msg_add_to_front( struct Message *msg, uint8_t count )
+{
+ if ( msg->start < count )
+ msg->start = MESSAGE_MAX_LENGTH - count + msg->start;
+ else
+ msg->start -= count;
+ msg->length += count;
+}
+
+inline void msg_drop_from_front( struct Message *msg, uint8_t count )
+{
+ msg->start += count;
+ if ( msg->start >= MESSAGE_MAX_LENGTH ) msg->start -= MESSAGE_MAX_LENGTH;
+ msg->length -= count;
+}
+
+inline void msg_add_to_end( struct Message *msg, uint8_t count )
+{
+ msg->length += count;
+}
+
+inline void msg_drop_from_end( struct Message *msg, uint8_t count )
+{
+ msg->length -= count;
+}
+
+inline uint8_t * msg_get_pointer( struct Message *msg, uint8_t offset )
+{
+ uint8_t i = msg->start + offset;
+ if ( i >= MESSAGE_MAX_LENGTH ) i -= MESSAGE_MAX_LENGTH;
+ return msg->data + i;
+}
+
+inline void msg_clear( struct Message *msg )
+{
+ msg->length = 0;
+ msg->start = 0;
+}
+
+inline void msg_set_length( struct Message *msg, uint8_t len ) { msg->length = len; }
+inline uint8_t msg_get_length( const struct Message *msg ) { return msg->length; }
+inline uint8_t msg_get_max_length( void ) { return MESSAGE_MAX_LENGTH; }
+
+/**
+ * Message queue functions. Message queues are simple
+ * linked lists.
+ */
+
+inline struct Message * pop_queue( struct Message **head )
+{
+ struct Message *result = *head;
+ if ( result != NULL )
+ *head = (*head)->next;
+ return result;
+}
+
+inline void push_queue( struct Message **head, struct Message *item )
+{
+ item->next = *head;
+ *head = item;
+}
+
+inline void append_queue( struct Message **head, struct Message *item )
+{
+ if (*head == NULL) {
+ *head = item;
+ }
+ else {
+ struct Message *bm = *head;
+ while ( bm->next != NULL )
+ bm = bm->next;
+ bm->next = item;
+ }
+ item->next = NULL;
+}
+
+inline uint8_t count_queue( struct Message *head )
+{
+ uint8_t count = 0;
+ while ( head ) {
+ count++;
+ head = head->next;
+ }
+ return count;
+}
+
+#endif // _BASIC_MESSAGE_H
projects / tinyos-2.x.git / commitdiff