diff options
author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2008-05-07 17:39:10 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2008-05-07 17:39:10 +0000 |
commit | ef83c4c70f508621c22106bed90d98b27d4853b5 (patch) | |
tree | 495b600b26f4bbccfb03737a4262cbe585283324 /c/src/lib/libbsp/sparc/leon3/clock/ckinit.c | |
parent | f58d7d8ac581438336de82dcb195e8c6da1528ef (diff) |
2008-05-07 Joel Sherrill <joel.sherrill@OARcorp.com>
* clock/ckinit.c: Add nanoseconds clock tick granularity support.
Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libbsp/sparc/leon3/clock/ckinit.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon3/clock/ckinit.c b/c/src/lib/libbsp/sparc/leon3/clock/ckinit.c index d9f2acb6fe..cb18d0d076 100644 --- a/c/src/lib/libbsp/sparc/leon3/clock/ckinit.c +++ b/c/src/lib/libbsp/sparc/leon3/clock/ckinit.c @@ -82,4 +82,18 @@ static int clkirq; LEON3_Timer_Regs->timer[LEON3_CLOCK_INDEX].conf = 0; \ } while (0) +uint32_t bsp_clock_nanoseconds_since_last_tick(void) +{ + uint32_t clicks; + if ( !LEON3_Timer_Regs ) + return 0; + + clicks = LEON3_Timer_Regs->timer[0].value; + + /* Down counter */ + return (uint32_t) (BSP_Configuration.microseconds_per_tick - clicks) * 1000; +} + +#define Clock_driver_nanoseconds_since_last_tick bsp_clock_nanoseconds_since_last_tick + #include "../../../shared/clockdrv_shell.c" |