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rmbox: use SSP 19.2M clock for trace 

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
This commit is contained in:
Liam Girdwood 2017-02-28 12:09:19 +00:00
parent 74512df085
commit b1d2434696
1 changed files with 5 additions and 5 deletions
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10
rmbox/rmbox.c
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@ -88,11 +88,11 @@ static void usage(char *name)
exit(0);
}
static inline float to_usecs(uint32_t time)
static inline float clk_to_usecs(uint32_t time)
{
/* trace timestamp uses CPU system clock at default 25MHz ticks */
/* trace timestamp uses SSP system clock at default 19.2MHz ticks */
// TODO: support variable clock rates
return (float)time / 25.0;
return (float)time / 19.2;
}
static void show_trace(uint32_t val, uint32_t addr, uint32_t *timestamp)
@ -103,8 +103,8 @@ static void show_trace(uint32_t val, uint32_t addr, uint32_t *timestamp)
/* timestamp or value ? */
if ((addr % 8) == 0) {
printf("trace.io: timestamp 0x%8.8x (%2.2f us) \tdelta 0x%8.8x (%2.2f us)\t",
(uint32_t)val, to_usecs(val),
(uint32_t)val - *timestamp, to_usecs(val - *timestamp));
(uint32_t)val, clk_to_usecs(val),
(uint32_t)val - *timestamp, clk_to_usecs(val - *timestamp));
*timestamp = val;
return;
}