X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Ftime.h;h=9deb2cf61cc4aab0d19dadea79469af79d8015ca;hb=9ff4ce8abc627b8696c9bd6fd726dd1dbf4b9a5c;hp=71446c317148a8f521d88d5234c993acf5e4aec6;hpb=a7bbaf8c1345906affb8dd6faa6a3aaedac3f451;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/time.h b/include/time.h
index 71446c3..9deb2cf 100644
--- a/include/time.h
+++ b/include/time.h
@@ -6,6 +6,8 @@
 #include <linux/typecheck.h>
 #include <linux/types.h>
 
+ulong get_tbclk(void);
+
 unsigned long get_timer(unsigned long base);
 
 /*
@@ -15,6 +17,17 @@ unsigned long get_timer(unsigned long base);
 unsigned long timer_get_us(void);
 uint64_t get_timer_us(uint64_t base);
 
+/**
+ * get_timer_us_long() - Get the number of elapsed microseconds
+ *
+ * This uses 32-bit arithmetic on 32-bit machines, which is enough to handle
+ * delays of over an hour. For 64-bit machines it uses a 64-bit value.
+ *
+ *@base: Base time to consider
+ *Return: elapsed time since @base
+ */
+unsigned long get_timer_us_long(unsigned long base);
+
 /*
  * timer_test_add_offset()
  *
@@ -74,7 +87,7 @@ uint64_t usec_to_tick(unsigned long usec);
  * usec2ticks() - Convert microseconds to internal ticks
  *
  * @usec: Value of microseconds to convert
- * @return Corresponding internal ticks value, calculated using get_tbclk()
+ * Return: Corresponding internal ticks value, calculated using get_tbclk()
  */
 ulong usec2ticks(unsigned long usec);
 
@@ -82,7 +95,7 @@ ulong usec2ticks(unsigned long usec);
  * ticks2usec() - Convert internal ticks to microseconds
  *
  * @ticks: Value of ticks to convert
- * @return Corresponding microseconds value, calculated using get_tbclk()
+ * Return: Corresponding microseconds value, calculated using get_tbclk()
  */
 ulong ticks2usec(unsigned long ticks);
 
@@ -99,7 +112,7 @@ void wait_ticks(unsigned long ticks);
 /**
  * timer_get_us() - Get monotonic microsecond timer
  *
- * @return value of monotonic microsecond timer
+ * Return: value of monotonic microsecond timer
  */
 unsigned long timer_get_us(void);
 
@@ -109,7 +122,7 @@ unsigned long timer_get_us(void);
  * This is an internal value used by the timer on the system. Ticks increase
  * monotonically at the rate given by get_tbclk().
  *
- * @return current tick value
+ * Return: current tick value
  */
 uint64_t get_ticks(void);