OrgACRN
/
soft
mirror of https://github.com/thesofproject/soft.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

rmbox: Add support for floating point clock freq in MHz 

Allow timestamp clock frequency to be set in MHz

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
This commit is contained in:
Liam Girdwood 2017-08-30 22:24:54 +01:00
parent 7a1105772d
commit 6bb4da421c
1 changed files with 23 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
rmbox/rmbox.c
View File

@ -99,23 +99,38 @@ static void usage(char *name)
exit(0);
}
static inline float to_usecs(uint32_t time, uint32_t clk)
static float to_usecs(uint32_t time, float clk)
{
/* trace timestamp uses CPU system clock at default 25MHz ticks */
// TODO: support variable clock rates
return (float)time / clk;
}
static void show_trace(uint32_t val, uint32_t addr, uint32_t *timestamp, uint32_t clk)
static void show_trace(uint32_t val, uint32_t addr, uint32_t *timestamp, float clk)
{
const char *trace;
uint32_t class;
uint32_t delta = val - *timestamp;
float fdelta = to_usecs(delta, clk);
/* timestamp or value ? */
if ((addr % 8) == 0) {
/* buffer wrap ? */
if (val < *timestamp) {
printf("----------------------------------------"
"----------------------------------------"
"--------------------------------------\n");
delta = 0;
fdelta = 0.0;
} else {
delta = val - *timestamp;
fdelta = to_usecs(delta, clk);
}
printf("trace.io: timestamp 0x%8.8x (%2.2f us) \tdelta 0x%8.8x (%2.2f us)\t",
(uint32_t)val, to_usecs(val, clk),
(uint32_t)val - *timestamp, to_usecs(val - *timestamp, clk));
(uint32_t)delta, fdelta);
*timestamp = val;
return;
}
@ -258,7 +273,8 @@ int main(int argc, char *argv[])
const char * out_file = NULL, *in_file = "/sys/kernel/debug/sof/mbox";
FILE *in_fd = NULL, *out_fd = NULL;
char c, tmp[4] = {0};
uint32_t addr = 0, val, clk = 25, timestamp = 0;
uint32_t addr = 0, val, timestamp = 0;
float clk = 19.2f;
while ((opt = getopt(argc, argv, "ho:i:s:m:c:")) != -1) {
switch (opt) {
@ -269,7 +285,7 @@ int main(int argc, char *argv[])
in_file = optarg;
break;
case 'c':
clk = atoi(optarg);
clk = atof(optarg);
break;
case 's':
return snapshot(optarg);
@ -301,6 +317,8 @@ int main(int argc, char *argv[])
/* start to converting mailbox */
convert:
fprintf(stdout, "using %2.2fMHz timestamp clock\n", clk);
while (1) {
count = fread(&tmp[0], 1, 4, in_fd);
if (count != 4)