116 lines
3.9 KiB
C
116 lines
3.9 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2014 - 2017 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* in advertising or otherwise to promote the sale, use or other dealings in
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* this Software without prior written authorization from Xilinx.
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*
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******************************************************************************/
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/*****************************************************************************/
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/**
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* @file sleep.h
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*
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* This header file contains ARM Cortex A53,A9,R5,Microblaze specific sleep
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* related APIs.
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*
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* <pre>
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* MODIFICATION HISTORY :
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*
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* Ver Who Date Changes
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* ----- ---- -------- -------------------------------------------------------
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* 6.6 srm 11/02/17 Added processor specific sleep rountines
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* function prototypes.
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*
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* </pre>
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*
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******************************************************************************/
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#ifndef SLEEP_H
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#define SLEEP_H
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#include "xil_types.h"
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#include "xil_io.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*****************************************************************************/
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/**
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*
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* This macro polls an address periodically until a condition is met or till the
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* timeout occurs.
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* The minimum timeout for calling this macro is 100us. If the timeout is less
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* than 100us, it still waits for 100us. Also the unit for the timeout is 100us.
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* If the timeout is not a multiple of 100us, it waits for a timeout of
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* the next usec value which is a multiple of 100us.
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*
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* @param IO_func - accessor function to read the register contents.
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* Depends on the register width.
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* @param ADDR - Address to be polled
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* @param VALUE - variable to read the value
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* @param COND - Condition to checked (usually involves VALUE)
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* @param TIMEOUT_US - timeout in micro seconds
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*
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* @return 0 - when the condition is met
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* -1 - when the condition is not met till the timeout period
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*
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* @note none
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*
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*****************************************************************************/
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#define Xil_poll_timeout(IO_func, ADDR, VALUE, COND, TIMEOUT_US) \
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( { \
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u64 timeout = TIMEOUT_US/100; \
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if(TIMEOUT_US%100!=0) \
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timeout++; \
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for(;;) { \
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VALUE = IO_func(ADDR); \
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if(COND) \
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break; \
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else { \
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usleep(100); \
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timeout--; \
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if(timeout==0) \
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break; \
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} \
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} \
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(timeout>0) ? 0 : -1; \
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} )
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void usleep(unsigned long useconds);
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void sleep(unsigned int seconds);
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int usleep_R5(unsigned long useconds);
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unsigned sleep_R5(unsigned int seconds);
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int usleep_MB(unsigned long useconds);
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unsigned sleep_MB(unsigned int seconds);
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int usleep_A53(unsigned long useconds);
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unsigned sleep_A53(unsigned int seconds);
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int usleep_A9(unsigned long useconds);
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unsigned sleep_A9(unsigned int seconds);
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#ifdef __cplusplus
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}
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#endif
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#endif
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