diff options
| author | Harald Welte <laforge@osmocom.org> | 2022-11-16 12:45:42 +0100 |
|---|---|---|
| committer | laforge <laforge@osmocom.org> | 2022-11-19 09:02:23 +0000 |
| commit | c472e33320e61b8d18c276508a21e71d83ce82e9 (patch) | |
| tree | 7618622c341dd3ee14c578a66bbbdec153574293 | |
| parent | 716fe6cefa28d54037c09771513bfdee52785fb4 (diff) | |
firmware/sniffer: Log cause of WT change
Change-Id: I14245c0ca96a258146e48bb9909efd9f8150f5ac
| -rw-r--r-- | firmware/libcommon/source/sniffer.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/firmware/libcommon/source/sniffer.c b/firmware/libcommon/source/sniffer.c index f86d1f7..1368f0b 100644 --- a/firmware/libcommon/source/sniffer.c +++ b/firmware/libcommon/source/sniffer.c @@ -204,10 +204,11 @@ static const uint8_t convention_convert_lut[256] = { 0xff, 0x7f, 0xbf, 0x3f, 0xd /*! Update Waiting Time (WT) * @param[in] wi Waiting Integer (0 if unchanged) * @param[in] d Baud Rate divider (0 if unchanged) + * @param[in] cause String describing the source of the change * @note set wt to be used by the receiver timeout * @note defined in ISO/IEC 7816-3:2006(E) section 8.1 and 10.2 */ -static void update_wt(uint8_t wi, uint8_t d) +static void update_wt(uint8_t wi, uint8_t d, const char *cause) { static uint8_t wt_wi = 10; /* Waiting time Integer (WI), used to calculate the Waiting Time (WT) */ static uint8_t wt_d = 1; /* baud rate adjustment integer (the actual value, not the table index) */ @@ -219,7 +220,7 @@ static void update_wt(uint8_t wi, uint8_t d) wt_d = d; } wt = wt_wi * 960UL * wt_d; - TRACE_INFO("WT updated to %lu ETU\n\r", wt); + TRACE_INFO("WT updated (wi=%u, d=%u, cause=%s) to %lu ETU\n\r", wi, d, cause, wt); } /*! Allocate USB buffer and push + initialize simtrace_msg_hdr @@ -287,7 +288,7 @@ static void change_state(enum iso7816_3_sniff_state iso_state_new) switch (iso_state_new) { case ISO7816_S_RESET: update_fidi(&sniff_usart, 0x11); /* reset baud rate to default Di/Fi values */ - update_wt(10, 1); /* reset WT time-out */ + update_wt(10, 1, "RESET"); /* reset WT time-out */ break; case ISO7816_S_WAIT_ATR: rbuf_reset(&sniff_buffer); /* reset buffer for new communication */ @@ -478,9 +479,9 @@ static void process_byte_atr(uint8_t byte) /* retrieve WI encoded in TC2*/ if (ATR_S_WAIT_TC == g_atr.state && 2 == i) { if (0 == byte) { - update_wt(10, 0); + update_wt(10, 0, "TC2=0"); } else { - update_wt(byte, 0); + update_wt(byte, 0, "TC2"); } } if (y & 0x80) { @@ -675,7 +676,7 @@ static void process_byte_pps(uint8_t byte) TRACE_INFO("PPS negotiation successful: Fn=%u Dn=%u\n\r", iso7816_3_fi_table[fn], iso7816_3_di_table[dn]); update_fidi(&sniff_usart, pps_cur[2]); - update_wt(0, iso7816_3_di_table[dn]); + update_wt(0, iso7816_3_di_table[dn], "PPS"); usb_send_fidi(pps_cur[2]); /* send Fi/Di change notification to host software over USB */ } else { /* checksum is invalid */ TRACE_INFO("PPS negotiation failed\n\r"); |