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/******************************************************************************
Copyright (c) 2012, Intel Corporation
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the Intel Corporation nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#ifndef LINUX_HAL_INTELCE_HPP
#define LINUX_HAL_INTELCE_HPP
#include <linux_hal_common.hpp>
#include <ismd_core.h>
/**@file*/
/**
* Extends the LinuxTimestamper to IntelCE cards
*/
class LinuxTimestamperIntelCE : public LinuxTimestamper {
private:
ismd_clock_t iclock;
uint64_t last_tx_time;
uint64_t last_rx_time;
int ce_timestamp_common
( PortIdentity *identity, uint16_t sequenceId, Timestamp ×tamp,
unsigned &clock_value, bool tx );
public:
/**
* @brief Initializes the hardware timestamp unit.
* @param iface_label [in] Interface label
* @param iface [in] Network interface
* @return TRUE if success, FALSE otherwise
*/
virtual bool HWTimestamper_init
( InterfaceLabel *iface_label, OSNetworkInterface *iface );
/**
* @brief Gets the TX hardware timestamp value
* @param identity Clock Identity
* @param sequenceId Sequence ID
* @param timestamp [out] Reference to the TX timestamps
* @param clock_value [out] 64 bit timestamp value
* @param last Not used
* @return 0 if success. -72 if there is an error in the captured sequence or if there
* is no data available. -1 in case of error when reading data from hardware interface.
*/
virtual int HWTimestamper_txtimestamp
( PortIdentity *identity, uint16_t sequenceId, Timestamp ×tamp,
unsigned &clock_value, bool last );
/**
* @brief Gets the RX hardware timestamp value
* @param identity Clock identity
* @param sequenceId Sequence ID
* @param timestamp [out] Reference to the RX timestamps
* @param clock_value [out] 64 bit timestamp value
* @param last Not used
* @return 0 if success. -72 if there is an error in the captured sequence or if there
* is no data available. -1 in case of error when reading data from hardware interface.
*/
virtual int HWTimestamper_rxtimestamp
( PortIdentity *identity, uint16_t sequenceId, Timestamp ×tamp,
unsigned &clock_value, bool last );
/**
* @brief Post initialization procedure. Configures hardware ptp filter
* @param ifindex Not used
* @param sd Not used
* @param lock Not used
* @return TRUE if success, FALSE otherwise.
*/
bool post_init( int ifindex, int sd, TicketingLock *lock );
/**
* Destroys timestamper
*/
virtual ~LinuxTimestamperIntelCE() {
}
/**
* Default constructor. Initialize some internal variables
*/
LinuxTimestamperIntelCE() {
last_tx_time = 0;
last_rx_time = 0;
}
/**
* @brief Gets time from hardware interface and stores internally in the object's memory.
* @param system_time Not used
* @param device_time Not used
* @param local_clock Not used
* @param nominal_clock_rate Not used
*/
virtual bool HWTimestamper_gettime
( Timestamp *system_time, Timestamp *device_time, uint32_t *local_clock,
uint32_t *nominal_clock_rate );
};
#endif/*LINUX_HAL_INTELCE_HPP*/
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