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diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/ia_css_timer.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/ia_css_timer.h
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+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/ia_css_timer.h
@@ -0,0 +1,84 @@
+#ifndef ISP2401
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+#else
+/**
+Support for Intel Camera Imaging ISP subsystem.
+Copyright (c) 2010 - 2015, Intel Corporation.
+
+This program is free software; you can redistribute it and/or modify it
+under the terms and conditions of the GNU General Public License,
+version 2, as published by the Free Software Foundation.
+
+This program is distributed in the hope it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+*/
+#endif
+
+#ifndef __IA_CSS_TIMER_H
+#define __IA_CSS_TIMER_H
+
+/** @file
+ * Timer interface definitions
+ */
+#include <type_support.h> /* for uint32_t */
+#include "ia_css_err.h"
+
+/** @brief timer reading definition */
+typedef uint32_t clock_value_t;
+
+/** @brief 32 bit clock tick,(timestamp based on timer-value of CSS-internal timer)*/
+struct ia_css_clock_tick {
+ clock_value_t ticks; /**< measured time in ticks.*/
+};
+
+/** @brief TIMER event codes */
+enum ia_css_tm_event {
+ IA_CSS_TM_EVENT_AFTER_INIT,
+ /**< Timer Event after Initialization */
+ IA_CSS_TM_EVENT_MAIN_END,
+ /**< Timer Event after end of Main */
+ IA_CSS_TM_EVENT_THREAD_START,
+ /**< Timer Event after thread start */
+ IA_CSS_TM_EVENT_FRAME_PROC_START,
+ /**< Timer Event after Frame Process Start */
+ IA_CSS_TM_EVENT_FRAME_PROC_END
+ /**< Timer Event after Frame Process End */
+};
+
+/** @brief code measurement common struct */
+struct ia_css_time_meas {
+ clock_value_t start_timer_value; /**< measured time in ticks */
+ clock_value_t end_timer_value; /**< measured time in ticks */
+};
+
+/**@brief SIZE_OF_IA_CSS_CLOCK_TICK_STRUCT checks to ensure correct alignment for struct ia_css_clock_tick. */
+#define SIZE_OF_IA_CSS_CLOCK_TICK_STRUCT sizeof(clock_value_t)
+/** @brief checks to ensure correct alignment for ia_css_time_meas. */
+#define SIZE_OF_IA_CSS_TIME_MEAS_STRUCT (sizeof(clock_value_t) \
+ + sizeof(clock_value_t))
+
+/** @brief API to fetch timer count directly
+*
+* @param curr_ts [out] measured count value
+* @return IA_CSS_SUCCESS if success
+*
+*/
+enum ia_css_err
+ia_css_timer_get_current_tick(
+ struct ia_css_clock_tick *curr_ts);
+
+#endif /* __IA_CSS_TIMER_H */
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