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rmbox: add support for different CPU clock speeds 

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
This commit is contained in:
Liam Girdwood 2017-06-09 14:55:36 +01:00
parent 778d7209cb
commit 1b0a663b0d
1 changed files with 13 additions and 10 deletions
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23
rmbox/rmbox.c
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@ -92,14 +92,14 @@ static void usage(char *name)
exit(0); exit(0);
} }
static inline float clk_to_usecs(uint32_t time) static inline float to_usecs(uint32_t time, uint32_t clk)
{ {
/* trace timestamp uses SSP system clock at default 19.2MHz ticks */ /* trace timestamp uses CPU system clock at default 25MHz ticks */
// TODO: support variable clock rates // TODO: support variable clock rates
return (float)time / 19.2; return (float)time / clk;
} }
static void show_trace(uint32_t val, uint32_t addr, uint32_t *timestamp) static void show_trace(uint32_t val, uint32_t addr, uint32_t *timestamp, uint32_t clk)
{ {
const char *trace; const char *trace;
uint32_t class; uint32_t class;
@ -107,8 +107,8 @@ static void show_trace(uint32_t val, uint32_t addr, uint32_t *timestamp)
/* timestamp or value ? */ /* timestamp or value ? */
if ((addr % 8) == 0) { if ((addr % 8) == 0) {
printf("trace.io: timestamp 0x%8.8x (%2.2f us) \tdelta 0x%8.8x (%2.2f us)\t", printf("trace.io: timestamp 0x%8.8x (%2.2f us) \tdelta 0x%8.8x (%2.2f us)\t",
(uint32_t)val, clk_to_usecs(val), (uint32_t)val, to_usecs(val, clk),
(uint32_t)val - *timestamp, clk_to_usecs(val - *timestamp)); (uint32_t)val - *timestamp, to_usecs(val - *timestamp, clk));
*timestamp = val; *timestamp = val;
return; return;
} }
@ -238,12 +238,12 @@ static int snapshot(const char *name)
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
int opt, count; int opt, count;
const char * out_file = NULL, *in_file = "/sys/kernel/debug/mbox"; const char * out_file = NULL, *in_file = "/sys/kernel/debug/sof/mbox";
FILE *in_fd = NULL, *out_fd = NULL; FILE *in_fd = NULL, *out_fd = NULL;
char c, tmp[4] = {0}; char c, tmp[4] = {0};
uint32_t addr = 0, val, timestamp = 0; uint32_t addr = 0, val, clk = 25, timestamp = 0;
while ((opt = getopt(argc, argv, "ho:i:s:m:")) != -1) { while ((opt = getopt(argc, argv, "ho:i:s:m:c:")) != -1) {
switch (opt) { switch (opt) {
case 'o': case 'o':
out_file = optarg; out_file = optarg;
@ -251,6 +251,9 @@ int main(int argc, char *argv[])
case 'i': case 'i':
in_file = optarg; in_file = optarg;
break; break;
case 'c':
clk = atoi(optarg);
break;
case 's': case 's':
return snapshot(optarg); return snapshot(optarg);
case 'h': case 'h':
@ -299,7 +302,7 @@ convert:
if (addr >= MAILBOX_TRACE_OFFSET && if (addr >= MAILBOX_TRACE_OFFSET &&
addr < MAILBOX_TRACE_OFFSET + MAILBOX_TRACE_SIZE) addr < MAILBOX_TRACE_OFFSET + MAILBOX_TRACE_SIZE)
show_trace(val, addr, &timestamp); show_trace(val, addr, &timestamp, clk);
else if (addr >= MAILBOX_DEBUG_OFFSET && else if (addr >= MAILBOX_DEBUG_OFFSET &&
addr < MAILBOX_DEBUG_OFFSET + MAILBOX_DEBUG_SIZE) addr < MAILBOX_DEBUG_OFFSET + MAILBOX_DEBUG_SIZE)
show_debug(val, addr); show_debug(val, addr);