uint16_t enc_read_by_type_req(uint16_t start, uint16_t end, bt_uuid_t *uuid,
uint8_t *pdu, size_t len)
{
uint16_t min_len = sizeof(pdu[0]) + sizeof(start) + sizeof(end);
uint16_t length;
if (!uuid)
return 0;
if (uuid->type == BT_UUID16)
length = 2;
else if (uuid->type == BT_UUID128)
length = 16;
else
return 0;
if (len < min_len + length)
return 0;
pdu[0] = ATT_OP_READ_BY_TYPE_REQ;
att_put_u16(start, &pdu[1]);
att_put_u16(end, &pdu[3]);
att_put_uuid(*uuid, &pdu[5]);
return min_len + length;
}
uint16_t enc_read_by_type_req(uint16_t start, uint16_t end, bt_uuid_t *uuid,
uint8_t *pdu, size_t len)
{
uint16_t uuid_len;
if (!uuid)
return 0;
if (uuid->type == BT_UUID16)
uuid_len = 2;
else if (uuid->type == BT_UUID128)
uuid_len = 16;
else
return 0;
/* Attribute Opcode (1 octet) */
pdu[0] = ATT_OP_READ_BY_TYPE_REQ;
/* Starting Handle (2 octets) */
att_put_u16(start, &pdu[1]);
/* Ending Handle (2 octets) */
att_put_u16(end, &pdu[3]);
/* Attribute Type (2 or 16 octet UUID) */
att_put_uuid(*uuid, &pdu[5]);
return 5 + uuid_len;
}
