diff options
Diffstat (limited to 'hci/src')
| -rw-r--r-- | hci/src/userial.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/hci/src/userial.c b/hci/src/userial.c index afd301065..d87bea1bf 100644 --- a/hci/src/userial.c +++ b/hci/src/userial.c @@ -52,6 +52,10 @@ #define USERIALDBG(param, ...) {} #endif +#ifndef ENABLE_USERIAL_TIMING_LOGS +#define ENABLE_USERIAL_TIMING_LOGS FALSE +#endif + #define MAX_SERIAL_PORT (USERIAL_PORT_3 + 1) #define READ_LIMIT (BTHC_USERIAL_READ_MEM_SIZE - BT_HC_HDR_SIZE) @@ -91,6 +95,29 @@ static volatile uint8_t userial_running = 0; ** Static functions ******************************************************************************/ +#if defined(ENABLE_USERIAL_TIMING_LOGS) && (ENABLE_USERIAL_TIMING_LOGS==TRUE) + +static void log_userial_tx_timing(int len) +{ + #define USEC_PER_SEC 1000000L + static struct timespec prev = {0, 0}; + struct timespec now, diff; + unsigned int diff_us = 0; + unsigned int now_us = 0; + + clock_gettime(CLOCK_MONOTONIC, &now); + now_us = now.tv_sec*USEC_PER_SEC + now.tv_nsec/1000; + diff_us = (now.tv_sec - prev.tv_sec) * USEC_PER_SEC + (now.tv_nsec - prev.tv_nsec)/1000; + + ALOGW("[userial] ts %08d diff : %08d len %d", now_us, diff_us, + len); + + prev = now; +} + +#endif + + /***************************************************************************** ** Socket signal functions to wake up userial_read_thread for termination ** @@ -125,6 +152,7 @@ static inline int is_signaled(fd_set* set) return FD_ISSET(signal_fds[0], set); } + /******************************************************************************* ** ** Function select_read @@ -454,6 +482,9 @@ uint16_t userial_write(uint16_t msg_id, uint8_t *p_data, uint16_t len) while(len != 0) { +#if defined(ENABLE_USERIAL_TIMING_LOGS) && (ENABLE_USERIAL_TIMING_LOGS==TRUE) + log_userial_tx_timing(len); +#endif ret = write(userial_cb.fd, p_data+total, len); total += ret; len -= ret; |