/* SPDX-License-Identifier: GPL-2.0 */
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/**
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Support for Intel Camera Imaging ISP subsystem.
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Copyright (c) 2010 - 2015, Intel Corporation.
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This program is free software; you can redistribute it and/or modify it
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under the terms and conditions of the GNU General Public License,
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version 2, as published by the Free Software Foundation.
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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*/
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#ifndef __IA_CSS_TIMER_H
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#define __IA_CSS_TIMER_H
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/* @file
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* Timer interface definitions
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*/
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#include <type_support.h> /* for uint32_t */
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#include "ia_css_err.h"
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/* @brief timer reading definition */
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typedef u32 clock_value_t;
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/* @brief 32 bit clock tick,(timestamp based on timer-value of CSS-internal timer)*/
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struct ia_css_clock_tick {
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clock_value_t ticks; /** measured time in ticks.*/
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};
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/* @brief TIMER event codes */
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enum ia_css_tm_event {
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IA_CSS_TM_EVENT_AFTER_INIT,
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/** Timer Event after Initialization */
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IA_CSS_TM_EVENT_MAIN_END,
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/** Timer Event after end of Main */
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IA_CSS_TM_EVENT_THREAD_START,
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/** Timer Event after thread start */
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IA_CSS_TM_EVENT_FRAME_PROC_START,
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/** Timer Event after Frame Process Start */
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IA_CSS_TM_EVENT_FRAME_PROC_END
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/** Timer Event after Frame Process End */
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};
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/* @brief code measurement common struct */
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struct ia_css_time_meas {
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clock_value_t start_timer_value; /** measured time in ticks */
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clock_value_t end_timer_value; /** measured time in ticks */
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};
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/**@brief SIZE_OF_IA_CSS_CLOCK_TICK_STRUCT checks to ensure correct alignment for struct ia_css_clock_tick. */
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#define SIZE_OF_IA_CSS_CLOCK_TICK_STRUCT sizeof(clock_value_t)
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/* @brief checks to ensure correct alignment for ia_css_time_meas. */
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#define SIZE_OF_IA_CSS_TIME_MEAS_STRUCT (sizeof(clock_value_t) \
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+ sizeof(clock_value_t))
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/* @brief API to fetch timer count directly
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*
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* @param curr_ts [out] measured count value
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* @return 0 if success
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*
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*/
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int
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ia_css_timer_get_current_tick(
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struct ia_css_clock_tick *curr_ts);
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#endif /* __IA_CSS_TIMER_H */
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