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hci_dump: avoid writing packet header without payload for binary RTT formats and SEGGER_RTT_MODE_NO_BLOCK_SKIP

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Matthias Ringwald 2019-11-18 14:53:33 +01:00
parent a20be900c9
commit 3b809c72bd
1 changed files with 25 additions and 0 deletions
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25
src/hci_dump.c
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@ -297,6 +297,20 @@ void hci_dump_packet(uint8_t packet_type, uint8_t in, uint8_t *packet, uint16_t
tv_sec = 946728000UL + (time_ms / 1000);
#endif
#ifdef ENABLE_SEGGER_RTT
#if (SEGGER_RTT_MODE_DEFAULT == SEGGER_RTT_MODE_NO_BLOCK_SKIP)
static const char rtt_warning[] = "RTT buffer full - packet(s) skipped";
static bool rtt_packet_skipped = false;
if (rtt_packet_skipped){
// try to write warning log message
rtt_packet_skipped = false;
packet_type = LOG_MESSAGE_PACKET;
packet = (uint8_t *) &rtt_warning[0];
len = sizeof(rtt_warning)-1;
}
#endif
#endif
uint16_t header_len = 0;
switch (dump_format){
case HCI_DUMP_BLUEZ:
@ -318,7 +332,18 @@ void hci_dump_packet(uint8_t packet_type, uint8_t in, uint8_t *packet, uint16_t
res = write (dump_file, packet, len );
UNUSED(res);
#endif
#ifdef ENABLE_SEGGER_RTT
#if (SEGGER_RTT_MODE_DEFAULT == SEGGER_RTT_MODE_NO_BLOCK_SKIP)
// check available space in buffer to avoid writing header but not packet
unsigned space_free = SEGGER_RTT_GetAvailWriteSpace(1);
if ((header_len + len) > space_free) {
rtt_packet_skipped = true;
return;
}
#endif
SEGGER_RTT_Write(1, &header, header_len);
SEGGER_RTT_Write(1, packet, len);
#endif