Write attributes command sending and parsing.

Data Structures
struct	zb_zcl_write_attr_req_s
	ZCL Write Attribute Command frame. More...
struct	zb_zcl_write_attr_res_s
	ZCL Write Attribute Command frame. More...

Macros
#define	ZB_ZCL_GENERAL_GET_NEXT_WRITE_ATTR_REQ(data_ptr, data_len, write_attr_req)
	Parses Write attribute request and returns next Write attribute record or NULL if there is no more data. More...
#define	ZB_ZCL_GET_NEXT_WRITE_ATTR_RES(data_buf, write_attr_res)
	Parses Write attribute response and returns next Write attribute status or NULL if there is no more data. More...
#define	ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_BY_TYPE(buffer, cmd_ptr, def_resp, write_attr_type)
	Initialize Write attribute command. More...
#define	ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ(buffer, cmd_ptr, def_resp)
	Initialize Write attribute command. More...
#define	ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_NO_RESP(buffer, cmd_ptr, def_resp)
	Initialize Write Attribute No Response command. More...
#define	ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_UNDIV(buffer, cmd_ptr, def_resp)
	Initialize Write Attribute Undivided command. More...
#define	ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_A(buffer, cmd_ptr, direction, def_resp)
	Initialize Write attribute command. More...
#define	ZB_ZCL_GENERAL_ADD_VALUE_WRITE_ATTR_REQ(cmd_ptr, attr_id, attr_type, attr_val)
	Add attribute value to command payload. More...
#define	ZB_ZCL_GENERAL_SEND_WRITE_ATTR_REQ( buffer, cmd_ptr, addr, dst_addr_mode, dst_ep, ep, profile_id, cluster_id, cb)
	Send Write attribute command. More...
#define	ZB_ZCL_GENERAL_SEND_WRITE_ATTRS_REQ( buffer, addr, addr_mode, dst_ep, ep, prof_id, cluster_id)
	Send "write attributes" request. deprecate. More...
#define	ZB_ZCL_GENERAL_INIT_WRITE_ATTR_RESP(_buffer, _cmd_ptr, _seq)
	Initialize Write attribute response command. More...
#define	ZB_ZCL_GENERAL_INIT_WRITE_ATTR_RESP_EXT(_buffer, _cmd_ptr, _direction, _seq, _is_manuf, _manuf_id)
	Initialize Write attribute response command. More...
#define	ZB_ZCL_GENERAL_SUCCESS_WRITE_ATTR_RESP(_cmd_ptr)
	Add Success status value to Write attribute response command payload. More...
#define	ZB_ZCL_GENERAL_ADD_STATUS_WRITE_ATTR_RESP(_buf, _cmd_ptr, _attr_id, _status)
	Add Fail status value to Write attribute response command payload. More...
#define	ZB_ZCL_GENERAL_SEND_WRITE_ATTR_RESP( _buffer, _cmd_ptr, _addr, _dst_addr_mode, _dst_ep, _ep, _profile_id, _cluster_id, _cb)
	Send Write attribute response command. More...

Typedefs
typedef struct zb_zcl_write_attr_req_s	zb_zcl_write_attr_req_t
	ZCL Write Attribute Command frame. More...
typedef struct zb_zcl_write_attr_res_s	zb_zcl_write_attr_res_t
	ZCL Write Attribute Command frame. More...

Detailed Description

Both write attributes request and response commands have variable-length payload.

Write attributes request can be filled as following:

ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ(data_buf, ptr, ZB_ZCL_ENABLE_DEFAULT_RESPONSE);
ZB_ZCL_GENERAL_ADD_VALUE_WRITE_ATTR_REQ(ptr, attr_id, attr_type, attr_val);
ZB_ZCL_GENERAL_SEND_WRITE_ATTR_REQ(
    data_buf,
    ptr,
    dst_addr,
    ZB_APS_ADDR_MODE_16_ENDP_PRESENT,
    dst_ep,
    src_ep,
    ZB_AF_HA_PROFILE_ID,
    ZB_ZCL_CLUSTER_ID_ON_OFF,
    NULL);

On the server side, this packet could be parsed in the following manner:

zb_zcl_write_attr_req_t *write_attr_req;
...
do
{
  ZB_ZCL_GENERAL_GET_NEXT_WRITE_ATTR_REQ(data_buf, write_attr_req);
  if (write_attr_req)
  {
    process write attribute request record
  }
}
while(write_attr_req);

Response sending and parsing could be done in the same manner.

For more information see any HA sample

Macro Definition Documentation

ZB_ZCL_GENERAL_ADD_STATUS_WRITE_ATTR_RESP

#define ZB_ZCL_GENERAL_ADD_STATUS_WRITE_ATTR_RESP	(		_buf,
			_cmd_ptr,
			_attr_id,
			_status
	)

Value:

{                                                                                       \
  zb_uint16_t bytes_avail = ZB_ZCL_GET_BYTES_AVAILABLE((_buf), (_cmd_ptr));             \
  if (bytes_avail >= sizeof(zb_zcl_write_attr_res_t))                                   \
  {                                                                                     \
    ZB_ZCL_PACKET_PUT_DATA8((_cmd_ptr), (_status));                                     \
    ZB_ZCL_PACKET_PUT_DATA16_VAL((_cmd_ptr), (_attr_id));                               \
  }                                                                                     \
  else                                                                                  \
  {                                                                                     \
    TRACE_MSG(TRACE_ZCL1, "ERROR, buffer is full", (FMT__0));                           \
  }                                                                                     \
}

Add Fail status value to Write attribute response command payload.

Parameters

_buf	- buffer to store command data
_cmd_ptr	- pointer to a command data memory
_attr_id	- attribute ID
_status	- status

ZB_ZCL_GENERAL_ADD_VALUE_WRITE_ATTR_REQ

#define ZB_ZCL_GENERAL_ADD_VALUE_WRITE_ATTR_REQ	(		cmd_ptr,
			attr_id,
			attr_type,
			attr_val
	)

Value:

{                                                                                      \
  ZB_ZCL_PACKET_PUT_DATA16_VAL(cmd_ptr, (attr_id));                                    \
  ZB_ZCL_PACKET_PUT_DATA8(cmd_ptr, (attr_type));                                       \
  (cmd_ptr) = zb_zcl_put_value_to_packet(cmd_ptr, attr_type, attr_val);                \
}

Add attribute value to command payload.

Parameters

cmd_ptr	- pointer to a command data memory
attr_id	- attribute identifier
attr_type	- attribute type
attr_val	- pointer to attribute data value

ZB_ZCL_GENERAL_GET_NEXT_WRITE_ATTR_REQ

#define ZB_ZCL_GENERAL_GET_NEXT_WRITE_ATTR_REQ	(		data_ptr,
			data_len,
			write_attr_req
	)

Value:

{                                                                                            \
  zb_uint8_t req_size = 0xff;                                                                \
  (write_attr_req) = (data_len) >= ZB_ZCL_WRITE_ATTR_REQ_SIZE ?                              \
    (zb_zcl_write_attr_req_t*)(data_ptr) : NULL;                                             \
                                                                                             \
  if (write_attr_req != NULL)                                                                \
  {                                                                                          \
    /* substruct sizeof(zb_uint8_t) because its size */                                      \
    /* is already included into ZB_ZCL_WRITE_ATTR_REQ_SIZE */                                \
    req_size = ZB_ZCL_WRITE_ATTR_REQ_SIZE - sizeof(zb_uint8_t) +                             \
      zb_zcl_get_attribute_size((write_attr_req)->attr_type, (write_attr_req)->attr_value);  \
    if (req_size <= (data_len))                                                              \
    {                                                                                        \
      ZB_ZCL_HTOLE16_INPLACE(&(write_attr_req)->attr_id);                                    \
      ZB_ZCL_FIX_ENDIAN((write_attr_req)->attr_value, (write_attr_req)->attr_type);          \
    }                                                                                        \
  }                                                                                          \
                                                                                             \
  if (req_size <= (data_len))                                                                \
  {                                                                                          \
    (data_ptr) = (data_ptr) + req_size;                                                      \
    (data_len) = (data_len) - req_size;                                                      \
  }                                                                                          \
  else                                                                                       \
  {                                                                                          \
    (write_attr_req) = NULL;                                                                 \
  }                                                                                          \
}

Parses Write attribute request and returns next Write attribute record or NULL if there is no more data.

If request contains invalid data, NULL is returned.

Parameters

data_ptr	- pointer to the data of a zb_bufid_t buffer containing write attribute request data
data_len	- variable containing length of a zb_bufid_t buffer
write_attr_req	- out pointer to zb_zcl_write_attr_req_t, containing Write attribute record

Note

buffer data by data_ptr should contain Write attribute request payload, without ZCL header.

ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ

#define ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ	(		buffer,
			cmd_ptr,
			def_resp
	)

Value:

  ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_BY_TYPE( \
    (buffer), (cmd_ptr), (def_resp), ZB_ZCL_CMD_WRITE_ATTRIB);

Initialize Write attribute command.

Parameters

buffer	- buffer to store command data
cmd_ptr	- pointer to a command data memory
def_resp	- enable/disable default response

ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_A

#define ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_A	(		buffer,
			cmd_ptr,
			direction,
			def_resp
	)

Value:

{                                                                                          \
  cmd_ptr = ZB_ZCL_START_PACKET(buffer);                                                   \
  ZB_ZCL_CONSTRUCT_GENERAL_COMMAND_REQ_FRAME_CONTROL_A(cmd_ptr, direction, ZB_ZCL_NOT_MANUFACTURER_SPECIFIC, def_resp);      \
  ZB_ZCL_CONSTRUCT_COMMAND_HEADER(cmd_ptr, ZB_ZCL_GET_SEQ_NUM(), ZB_ZCL_CMD_WRITE_ATTRIB); \
}

Initialize Write attribute command.

Parameters

buffer	- buffer to store command data
cmd_ptr	- pointer to a command data memory
direction	- direction of command (see zb_zcl_frame_direction_t)
def_resp	- enable/disable default response

ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_BY_TYPE

#define ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_BY_TYPE	(		buffer,
			cmd_ptr,
			def_resp,
			write_attr_type
	)

Value:

{                                                                                          \
  cmd_ptr = ZB_ZCL_START_PACKET(buffer);                                                   \
  ZB_ZCL_CONSTRUCT_GENERAL_COMMAND_REQ_FRAME_CONTROL(cmd_ptr, def_resp);                   \
  ZB_ZCL_CONSTRUCT_COMMAND_HEADER(cmd_ptr, ZB_ZCL_GET_SEQ_NUM(), write_attr_type);             \
}

Initialize Write attribute command.

Parameters

buffer	- buffer to store command data
cmd_ptr	- pointer to a command data memory
def_resp	- enable/disable default response
write_attr_type	- type of 'Write Attribute' command: default -

See also

ZB_ZCL_CMD_WRITE_ATTRIB; no response -

ZB_ZCL_CMD_WRITE_ATTRIB_NO_RESP; undivided -

ZB_ZCL_CMD_WRITE_ATTRIB_UNDIV;

ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_NO_RESP

#define ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_NO_RESP	(		buffer,
			cmd_ptr,
			def_resp
	)

Value:

  ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_BY_TYPE( \
    (buffer), (cmd_ptr), (def_resp), ZB_ZCL_CMD_WRITE_ATTRIB_NO_RESP);

Initialize Write Attribute No Response command.

Parameters

buffer	- buffer to store command data
cmd_ptr	- pointer to a command data memory
def_resp	- enable/disable default response

ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_UNDIV

#define ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_UNDIV	(		buffer,
			cmd_ptr,
			def_resp
	)

Value:

  ZB_ZCL_GENERAL_INIT_WRITE_ATTR_REQ_BY_TYPE( \
    (buffer), (cmd_ptr), (def_resp), ZB_ZCL_CMD_WRITE_ATTRIB_UNDIV);

Initialize Write Attribute Undivided command.

Parameters

buffer	- buffer to store command data
cmd_ptr	- pointer to a command data memory
def_resp	- enable/disable default response

ZB_ZCL_GENERAL_INIT_WRITE_ATTR_RESP

#define ZB_ZCL_GENERAL_INIT_WRITE_ATTR_RESP	(		_buffer,
			_cmd_ptr,
			_seq
	)

Value:

{                                                                                       \
  cmd_ptr = ZB_ZCL_START_PACKET((_buffer));                                             \
  ZB_ZCL_CONSTRUCT_GENERAL_COMMAND_RESP_FRAME_CONTROL((_cmd_ptr));                      \
  ZB_ZCL_CONSTRUCT_COMMAND_HEADER((_cmd_ptr), (_seq), ZB_ZCL_CMD_WRITE_ATTRIB_RESP);    \
}

Initialize Write attribute response command.

Parameters

_buffer	- buffer to store command data
_cmd_ptr	- pointer to a command data memory
_seq	- command sequence

ZB_ZCL_GENERAL_INIT_WRITE_ATTR_RESP_EXT

#define ZB_ZCL_GENERAL_INIT_WRITE_ATTR_RESP_EXT	(		_buffer,
			_cmd_ptr,
			_direction,
			_seq,
			_is_manuf,
			_manuf_id
	)

Value:

{                                                                                                               \
  cmd_ptr = ZB_ZCL_START_PACKET((_buffer));                                                                     \
  ZB_ZCL_CONSTRUCT_GENERAL_COMMAND_RESP_FRAME_CONTROL_A((_cmd_ptr), (_direction), (_is_manuf));                 \
  ZB_ZCL_CONSTRUCT_COMMAND_HEADER_EXT((_cmd_ptr), (_seq), (_is_manuf), (_manuf_id), ZB_ZCL_CMD_WRITE_ATTRIB_RESP);      \
}

Initialize Write attribute response command.

Parameters

_buffer	- buffer to store command data
_cmd_ptr	- pointer to a command data memory
_direction	- direction of command (see zb_zcl_frame_direction_t)
_seq	- command sequence
_is_manuf	- whether command is manufacturer specific
_manuf_id	- manufacturer ID (needed if _is_manuf is set)

ZB_ZCL_GENERAL_SEND_WRITE_ATTR_REQ

#define ZB_ZCL_GENERAL_SEND_WRITE_ATTR_REQ	(		buffer,
			cmd_ptr,
			addr,
			dst_addr_mode,
			dst_ep,
			ep,
			profile_id,
			cluster_id,
			cb
	)

Value:

{                                                                                                 \
  ZB_ZCL_FINISH_PACKET(buffer, cmd_ptr)                                                          \
  ZB_ZCL_SEND_COMMAND_SHORT(buffer, addr, dst_addr_mode, dst_ep, ep, profile_id, cluster_id, cb); \
}

Send Write attribute command.

Parameters

buffer	- buffer to store command data
cmd_ptr	- pointer to a command data memory
addr	- address to send packet to
dst_addr_mode	- addressing mode
dst_ep	- destination endpoint
ep	- sending endpoint
profile_id	- profile identifier
cluster_id	- cluster identifier
cb	- callback for getting command send status

ZB_ZCL_GENERAL_SEND_WRITE_ATTR_RESP

#define ZB_ZCL_GENERAL_SEND_WRITE_ATTR_RESP	(		_buffer,
			_cmd_ptr,
			_addr,
			_dst_addr_mode,
			_dst_ep,
			_ep,
			_profile_id,
			_cluster_id,
			_cb
	)

Value:

{                                                                                               \
  ZB_ZCL_FINISH_PACKET((_buffer), (_cmd_ptr))                                                  \
  ZB_ZCL_SEND_COMMAND_SHORT((_buffer), (_addr), (_dst_addr_mode), (_dst_ep), (_ep),             \
                (_profile_id), (_cluster_id), (_cb));                                           \
}

Send Write attribute response command.

Parameters

_buffer	- buffer to store command data
_cmd_ptr	- pointer to a command data memory
_addr	- address to send packet to
_dst_addr_mode	- addressing mode
_dst_ep	- destination endpoint
_ep	- sending endpoint
_profile_id	- profile identifier
_cluster_id	- cluster identifier
_cb	- callback for getting command send status

ZB_ZCL_GENERAL_SEND_WRITE_ATTRS_REQ

#define ZB_ZCL_GENERAL_SEND_WRITE_ATTRS_REQ	(		buffer,
			addr,
			addr_mode,
			dst_ep,
			ep,
			prof_id,
			cluster_id
	)

Value:

  ZB_ZCL_SEND_GENERAL_COMMAND_REQ_SHORT(                                                 \
      buffer, addr, addr_mode, dst_ep, ep, prof_id, cluster_id, ZB_ZCL_CMD_WRITE_ATTRIB)

Send "write attributes" request. deprecate.

ZB_ZCL_GENERAL_SUCCESS_WRITE_ATTR_RESP

#define ZB_ZCL_GENERAL_SUCCESS_WRITE_ATTR_RESP

(

_cmd_ptr

)

Value:

{                                                               \
  ZB_ZCL_PACKET_PUT_DATA8((_cmd_ptr), ZB_ZCL_STATUS_SUCCESS);   \
}

Add Success status value to Write attribute response command payload.

Parameters

_cmd_ptr

- pointer to a command data memory

ZB_ZCL_GET_NEXT_WRITE_ATTR_RES

#define ZB_ZCL_GET_NEXT_WRITE_ATTR_RES	(		data_buf,
			write_attr_res
	)

Parses Write attribute response and returns next Write attribute status or NULL if there is no more data.

If response contains invalid data, NULL is returned.

Parameters

data_buf	- ID zb_bufid_t of a buffer containing write attribute response data
write_attr_res	- out pointer to zb_zcl_write_attr_res_t, containing Write attribute status

Note

data_buf buffer should contain Write attribute response payload, without ZCL header. Each parsed Write attribute response is extracted from initial data_buf buffer

Typedef Documentation

zb_zcl_write_attr_req_t

typedef struct zb_zcl_write_attr_req_s zb_zcl_write_attr_req_t

ZCL Write Attribute Command frame.

See also

ZCL spec, 2.4.3 Write Attributes Command

zb_zcl_write_attr_res_t

typedef struct zb_zcl_write_attr_res_s zb_zcl_write_attr_res_t

ZCL Write Attribute Command frame.

See also

ZCL spec, 2.4.3 Write Attributes Command