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//
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef INCLUDED_UHD_RFNOC_ASYNC_MSG_HPP
#define INCLUDED_UHD_RFNOC_ASYNC_MSG_HPP
#include <uhd/config.hpp>
#include <uhd/types/time_spec.hpp>
#include <uhd/types/sid.hpp>
#include <vector>
namespace uhd { namespace rfnoc {
/*!
* Async message.
*/
struct async_msg_t
{
//! Has time?
bool has_time_spec;
//! When the async event occurred.
time_spec_t time_spec;
/*!
* The type of event for a receive async message call.
*/
enum event_code_t {
//! Nothing happened.
EVENT_CODE_NONE = 0x00,
//! A burst was successfully transmitted.
EVENT_CODE_BURST_ACK = 0x1,
//! An internal send buffer has emptied.
EVENT_CODE_UNDERFLOW = 0x2,
//! Same. We use the terms 'underrun' and 'underflow' interchangeably.
EVENT_CODE_UNDERRUN = EVENT_CODE_UNDERFLOW,
//! Packet loss or reordering between source and destination,
// at start of burst (i.e. the first packet after an EOB packet
// had the wrong sequence number).
EVENT_CODE_SEQ_ERROR = 0x4,
//! Like EVENT_CODE_SEQ_ERROR, but within a burst (i.e., any packet
// other than the first packet had an error)
EVENT_CODE_SEQ_ERROR_IN_BURST = 0x20,
//! Data packet had time that was late.
EVENT_CODE_LATE_DATA_ERROR = 0x8,
//! Command packet had time that was late.
EVENT_CODE_LATE_CMD_ERROR = 0x8,
//! Packet is carrying arbitrary payload
EVENT_CODE_USER_PAYLOAD = 0x40,
// TODO: For now, we combine legacy TX and RX messages.
EVENT_CODE_OVERFLOW = 0x8,
EVENT_CODE_OVERRUN = EVENT_CODE_OVERFLOW,
//! Multi-channel alignment failed.
EVENT_CODE_ALIGNMENT = 0xc,
//! The packet could not be parsed.
EVENT_CODE_BAD_PACKET = 0xf
} event_code;
/*!
* A special payload populated by custom FPGA fabric.
*/
std::vector<uint32_t> payload;
//! The SID on the async message packet
uint32_t sid;
async_msg_t(const size_t payload_size=4) :
has_time_spec(false),
time_spec(0.0),
event_code(EVENT_CODE_NONE),
payload(payload_size, 0),
sid(0)
{}
//! Return the the id of src block that throw eror
uint32_t get_error_src() const { return sid_t(sid).get_src_endpoint(); }
};
}
}
#endif /* INCLUDED_UHD_RFNOC_ASYNC_MSG_HPP */
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