1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/ia_css_timer.h b/drivers/staging/media/atomisp/pci/ia_css_timer.h
new file mode 100644
index 000000000000..a37cfa60ad35
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/ia_css_timer.h
@@ -0,0 +1,68 @@
+/**
+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.
+*/
+
+#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 u32 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 */