/******************************************************************************
*
* Copyright (C) 2008 - 2014 Xilinx, Inc. All rights reserved.
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* of this software and associated documentation files (the "Software"), to deal
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* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
* (a) running on a Xilinx device, or
* (b) that interact with a Xilinx device through a bus or interconnect.
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******************************************************************************/
/*****************************************************************************/
/**
*
* @file xavb_hw.c
*
* The xavb_hw driver. Functions in this file are the minimum required functions
* for this driver. See xavb_hw.h for a detailed description of the driver.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- -----------------------------------------------
* 1.00a mbr 09/19/08 First release
* 1.01a mbr 06/24/09 PTP frame format updates for IEEE802.1 AS draft 5-0
* 2_02a mbr 09/16/09 Updates for programmable PTP timers
* 2_04a kag 07/23/10 PTP frame format updates for IEEE802.1 AS draft 6-7
* 3_01a kag 08/29/11 Added new APIs to update the RX Filter Control Reg.
* Fix for CR:572539. Updated bit map for Rx Filter
* control reg.
*
* </pre>
*
******************************************************************************/
/***************************** Include Files *********************************/
#include "xil_types.h"
#include "xil_io.h"
#include "xavb_hw.h"
/************************** Constant Definitions *****************************/
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
/************************** Variable Definitions *****************************/
/************************** Function Prototypes ******************************/
/*****************************************************************************/
/****************************************************************************/
/**
*
* This function reads the given Ethernet Statistic Register
*
* @param BaseAddress is the base address of the device
* @param CounterID is the Statistic Counter to be read
* @param Value a pointer to the read value of the 64-bit value of the counter
* and it is updated by this function
*
* @return None.
*
* @note The CounterID's defined here are the same as the Statistic Counter
* Addresses as used with the TEMAC core. Since each counter is 8-bytes
* wide, we must multiply these Counter ID's by 8 (or a left shift of 3)
* when mapping this into the PLB memory map. The 64-bit counter value
* is read as two separate 32-bit accesses.
*
*****************************************************************************/
void XAvbMac_ReadStats(u32 BaseAddress,
u32 CounterId,
XAvb_Uint64* Value)
{
Value->Upper = Xil_In32(BaseAddress + ((CounterId & 0x00ff) << 3) + 0x4);
Value->Lower = Xil_In32(BaseAddress + ((CounterId & 0x00ff) << 3));
}
/****************************************************************************/
/**
*
* This function reads the current Real Time Counter (RTC) value
*
* @param BaseAddress is the base address of the device
* @param RtcValue is a pointer to a struct in which to store the value read
* from the RTC (The RTC 48-bit seconds field and the 32-bit ns field
* of this struct are updated).
*
* @return None
*
* @note This is provided as a basic function since the ns field MUST be read
* before the seconds/epoch registers (reading the ns samples the entire
* RTC in hardware).
*
*****************************************************************************/
void XAvb_ReadRtc(u32 BaseAddress,
XAvb_RtcFormat* RtcValue)
{
RtcValue->NanoSeconds =
Xil_In32(BaseAddress + XAVB_RTC_NANOSEC_VALUE_OFFSET)
& XAVB_RTC_NS_MASK;
RtcValue->SecondsLower =
Xil_In32(BaseAddress + XAVB_RTC_SEC_LOWER_VALUE_OFFSET)
& XAVB_RTC_SEC_LOWER_MASK;
RtcValue->SecondsUpper =
Xil_In32(BaseAddress + XAVB_RTC_SEC_UPPER_VALUE_OFFSET)
& XAVB_RTC_SEC_UPPER_MASK;
}
/****************************************************************************/
/**
*
* This function writes to the Real Time Counter (RTC) Offset Registers
*
* @param BaseAddress is the base address of the device
* @param RtcValue is the nanoseconds and seconds offset values that should
* be written to the RTC.
*
* @return None
*
* @note This is provided as a basic function since the ns field MUST be
* written after the seconds/epoch offset registers (writing to the ns
* offset registers samples the entire RTC offset in hardware).
*
*****************************************************************************/
void XAvb_WriteRtcOffset(u32 BaseAddress, XAvb_RtcFormat* RtcValue)
{
Xil_Out32((BaseAddress + XAVB_RTC_SEC_UPPER_OFFSET),
(RtcValue->SecondsUpper & XAVB_RTC_SEC_UPPER_MASK));
Xil_Out32((BaseAddress + XAVB_RTC_SEC_LOWER_OFFSET),
(RtcValue->SecondsLower & XAVB_RTC_SEC_LOWER_MASK));
Xil_Out32((BaseAddress + XAVB_RTC_NANOSEC_OFFSET),
(RtcValue->NanoSeconds & XAVB_RTC_NS_MASK));
}