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added proper bitstring encoding

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skarg
2005-04-15 17:43:02 +00:00
parent 6cdffceab6
commit 57e3025421
4 changed files with 121 additions and 28 deletions
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bacnet-stack/bacdcode.h
+20
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@@ -38,6 +38,14 @@
#include <stdbool.h>
#include <stddef.h>
// bit strings
#define MAX_BITSTRING_BYTES 15
typedef struct BACnet_Bit_String
{
uint8_t bits_used;
uint8_t value[MAX_BITSTRING_BYTES];
} BACNET_BIT_STRING;
// from clause 20.2.1 General Rules for Encoding BACnet Tags
// returns the number of apdu bytes consumed
int encode_tag(uint8_t * apdu, uint8_t tag_number, bool context_specific,
@@ -58,6 +66,18 @@ bool decode_is_closing_tag_number(uint8_t * apdu, uint8_t tag_number);
// returns true if the tag is context specific and matches
bool decode_is_context_tag(uint8_t * apdu, uint8_t tag_number);
// from clause 20.2.10 Encoding of a Bit String Value
void bitstring_init(BACNET_BIT_STRING *bit_string);
void bitstring_set_bit(BACNET_BIT_STRING *bit_string, uint8_t bit, bool value);
bool bitstring_bit(BACNET_BIT_STRING *bit_string, uint8_t bit);
uint8_t bitstring_bits_used(BACNET_BIT_STRING *bit_string);
// returns the number of apdu bytes consumed
int decode_bitstring(uint8_t * apdu, uint32_t len_value,
BACNET_BIT_STRING *bit_string);
// returns the number of apdu bytes consumed
int encode_bitstring(uint8_t * apdu, BACNET_BIT_STRING *bit_string);
int encode_tagged_bitstring(uint8_t * apdu, BACNET_BIT_STRING *bit_string);
// from clause 20.2.6 Encoding of a Real Number Value
// and 20.2.1 General Rules for Encoding BACnet Tags
// returns the number of apdu bytes consumed