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/* Copyright [2009 - 2020] Exegin Technologies Limited. All rights reserved. */
#ifndef ZCL_PAYLOAD_H
# define ZCL_PAYLOAD_H
#include "zcl/zcl.h"
/*lint -save -e9021 [ useof 'undef' is discouraged <Rule 20.5, ADVISORY> ] */
/*lint -save -e9016 [ pointer arithmetic <Rule 18.4, ADVISORY> ] */
/*---------------------------------------------------------------
* ZCL Payload Helpers
*---------------------------------------------------------------
*/
#define ZCL_BUILDER_CHECK_LEN(size) \
do { \
if (payload == NULL) { \
return -1; \
} \
if (index == NULL) { \
return -1; \
} \
if ((*index + (size)) > capacity) { \
return -1; \
} \
} while (false)
#define ZCL_BUILDER_TEMPLATE(size, append_func) \
do { \
ZCL_BUILDER_CHECK_LEN(size); \
append_func; \
*index += (size); \
return (int)*index; \
} while (false)
/*
* Helper Functions for constructing a ZCL payload
*/
static inline int
zb_zcl_append_uint8(uint8_t *payload, const unsigned int capacity, unsigned int *index, uint8_t value)
{
ZCL_BUILDER_TEMPLATE(1U, payload[*index] = value);
}
static inline int
zb_zcl_append_uint16(uint8_t *payload, const unsigned int capacity, unsigned int *index, uint16_t value)
{
ZCL_BUILDER_TEMPLATE(2U, putle16(payload + *index, value));
}
static inline int
zb_zcl_append_uint24(uint8_t *payload, const unsigned int capacity, unsigned int *index, uint32_t value)
{
ZCL_BUILDER_TEMPLATE(3U, putle24(payload + *index, value));
}
static inline int
zb_zcl_append_uint32(uint8_t *payload, const unsigned int capacity, unsigned int *index, uint32_t value)
{
ZCL_BUILDER_TEMPLATE(4U, putle32(payload + *index, value));
}
static inline int
zb_zcl_append_uint40(uint8_t *payload, const unsigned int capacity, unsigned int *index, uint64_t value)
{
ZCL_BUILDER_TEMPLATE(5U, putle40(payload + *index, value));
}
static inline int
zb_zcl_append_uint48(uint8_t *payload, const unsigned int capacity, unsigned int *index, uint64_t value)
{
ZCL_BUILDER_TEMPLATE(6U, putle48(payload + *index, value));
}
static inline int
zb_zcl_append_uint56(uint8_t *payload, const unsigned int capacity, unsigned int *index, uint64_t value)
{
ZCL_BUILDER_TEMPLATE(7U, putle56(payload + *index, value));
}
static inline int
zb_zcl_append_uint64(uint8_t *payload, const unsigned int capacity, unsigned int *index, uint64_t value)
{
ZCL_BUILDER_TEMPLATE(8U, putle64(payload + *index, value));
}
static inline int
zb_zcl_append_uint8_array(uint8_t *payload, const unsigned int capacity, unsigned int *index,
const uint8_t *value, const unsigned int value_length)
{
unsigned i;
ZCL_BUILDER_CHECK_LEN(value_length);
/* ZbMemCpy is not portable (internal stack use only) */
for (i = 0; i < value_length; i++) {
payload[*index + i] = value[i];
}
*index += value_length;
return (int)*index;
}
/* prevent accidental reuse */
#undef ZCL_BUILDER_TEMPLATE
#define ZCL_PARSER_TEMPLATE(size, extract_func) \
do { \
if (payload == NULL) { \
return -1; \
} \
if (index == NULL) { \
return -1; \
} \
if ((*index + (size)) > length) { \
return -1; \
} \
*value = extract_func; \
*index += (size); \
return (int)*index; \
} while (false)
/*
* Helper Functions for processing a ZCL payload
*/
static inline int
zb_zcl_parse_uint8(const uint8_t *payload, const unsigned int length, unsigned int *index, uint8_t *value)
{
ZCL_PARSER_TEMPLATE(1U, payload[*index]);
}
static inline int
zb_zcl_parse_uint16(const uint8_t *payload, const unsigned int length, unsigned int *index, uint16_t *value)
{
ZCL_PARSER_TEMPLATE(2U, pletoh16(payload + *index));
}
static inline int
zb_zcl_parse_uint24(const uint8_t *payload, const unsigned int length, unsigned int *index, uint32_t *value)
{
ZCL_PARSER_TEMPLATE(3U, pletoh24(payload + *index));
}
static inline int
zb_zcl_parse_uint32(const uint8_t *payload, const unsigned int length, unsigned int *index, uint32_t *value)
{
ZCL_PARSER_TEMPLATE(4U, pletoh32(payload + *index));
}
static inline int
zb_zcl_parse_uint40(const uint8_t *payload, const unsigned int length, unsigned int *index, uint64_t *value)
{
ZCL_PARSER_TEMPLATE(5U, pletoh40(payload + *index));
}
static inline int
zb_zcl_parse_uint48(const uint8_t *payload, const unsigned int length, unsigned int *index, uint64_t *value)
{
ZCL_PARSER_TEMPLATE(6U, pletoh48(payload + *index));
}
static inline int
zb_zcl_parse_uint56(const uint8_t *payload, const unsigned int length, unsigned int *index, uint64_t *value)
{
ZCL_PARSER_TEMPLATE(7U, pletoh56(payload + *index));
}
static inline int
zb_zcl_parse_uint64(const uint8_t *payload, const unsigned int length, unsigned int *index, uint64_t *value)
{
ZCL_PARSER_TEMPLATE(8U, pletoh64(payload + *index));
}
/* prevent accidental reuse */
#undef ZCL_PARSER_TEMPLATE
/*lint -restore */
/*lint -restore */
#endif /* __ZCL_PAYLOAD_H */
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