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Some minor fixes

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Use longer timeout in WaitForRawDataTimeout() to handle CMD_WTX
Fix a wrong type
Apply changes to other similar part
Remove unused instructions
This commit is contained in:
wh201906 2023-11-14 10:34:50 +08:00
parent 8b6a274e28
commit ab9f49f86e
No known key found for this signature in database
5 changed files with 19 additions and 17 deletions
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2
armsrc/fpgaloader.c
View file

@ -493,7 +493,7 @@ void FpgaDownloadAndGo(int bitstream_version) {
#endif
// Send waiting time extension request as this will take a while
send_wtx(1500);
send_wtx(FPGA_LOAD_WAIT_TIME);
bool verbose = (g_dbglevel > 3);

23
armsrc/lfsampling.c
View file

@ -229,7 +229,7 @@ void logSample(uint8_t sample, uint8_t decimation, uint8_t bits_per_sample, bool
// write the current byte
data.buffer[data.numbits >> 3] |= sample >> bits_offset;
int numbits = data.numbits + bits_cap;
uint32_t numbits = data.numbits + bits_cap;
// write the remaining bits to the next byte
data.buffer[numbits >> 3] |= sample << (bits_cap);
@ -306,7 +306,7 @@ uint32_t DoAcquisition(uint8_t decimation, uint8_t bits_per_sample, bool avg, in
// only every 4000th times, in order to save time when collecting samples.
// interruptible only when logging not yet triggered
if ((checked >= 4000) && trigger_hit == false) {
if (unlikely(trigger_hit == false && (checked >= 4000))) {
if (data_available()) {
checked = -1;
break;
@ -325,11 +325,11 @@ uint32_t DoAcquisition(uint8_t decimation, uint8_t bits_per_sample, bool avg, in
if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) {
volatile uint8_t sample = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
// Test point 8 (TP8) can be used to trigger oscilloscope
// (RDV4) Test point 8 (TP8) can be used to trigger oscilloscope
if (ledcontrol) LED_D_OFF();
// threshold either high or low values 128 = center 0. if trigger = 178
if (trigger_hit == false) {
if (unlikely(trigger_hit == false)) {
if ((trigger_threshold > 0) && (sample < (trigger_threshold + 128)) && (sample > (128 - trigger_threshold))) {
if (cancel_after > 0) {
cancel_counter++;
@ -338,11 +338,10 @@ uint32_t DoAcquisition(uint8_t decimation, uint8_t bits_per_sample, bool avg, in
}
continue;
}
trigger_hit = true;
}
trigger_hit = true;
if (samples_to_skip > 0) {
if (unlikely(samples_to_skip > 0)) {
samples_to_skip--;
continue;
}
@ -371,6 +370,7 @@ uint32_t DoAcquisition(uint8_t decimation, uint8_t bits_per_sample, bool avg, in
}
return data.numbits;
}
/**
* @brief Does sample acquisition, ignoring the config values set in the sample_config.
* This method is typically used by tag-specific readers who just wants to read the samples
@ -441,7 +441,7 @@ int ReadLF_realtime(bool reader_field) {
int32_t samples_to_skip = config.samples_to_skip;
const uint8_t decimation = config.decimation;
uint32_t sample_size = 64;
uint32_t sample_buffer_len = 64;
const int8_t size_threshold_table[9] = {0, 64, 64, 60, 64, 60, 60, 56, 64};
const int8_t size_threshold = size_threshold_table[bits_per_sample];
@ -450,14 +450,11 @@ int ReadLF_realtime(bool reader_field) {
uint8_t curr_byte = 0;
int return_value = PM3_SUCCESS;
initSampleBuffer(&sample_size); // sample size in bytes
if (sample_size != 64) {
initSampleBuffer(&sample_buffer_len);
if (sample_buffer_len != 64) {
return PM3_EFAILED;
}
sample_size <<= 3; // sample size in bits
sample_size /= bits_per_sample; // sample count
bool trigger_hit = false;
int16_t checked = 0;

2
armsrc/lfzx.c
View file

@ -153,7 +153,7 @@ static void zx_get(bool ledcontrol) {
volatile uint8_t sample = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
(void)sample;
// Test point 8 (TP8) can be used to trigger oscilloscope
// (RDV4) Test point 8 (TP8) can be used to trigger oscilloscope
if (ledcontrol) LED_D_OFF();
}

6
client/src/cmdlf.c
View file

@ -721,7 +721,7 @@ static int lf_read_internal(bool realtime, bool verbose, uint64_t samples) {
sample_bytes = (sample_bytes / 8) + (sample_bytes % 8 != 0);
SendCommandNG(CMD_LF_ACQ_RAW_ADC, (uint8_t *)&payload, sizeof(payload));
sample_bytes = WaitForRawDataTimeout(realtimeBuf, sample_bytes, 1000, true);
sample_bytes = WaitForRawDataTimeout(realtimeBuf, sample_bytes, 1000 + FPGA_LOAD_WAIT_TIME, true);
samples = sample_bytes * 8 / bits_per_sample;
getSamplesFromBufEx(realtimeBuf, samples, bits_per_sample, verbose);
@ -751,6 +751,7 @@ int lf_read(bool verbose, uint64_t samples) {
}
int CmdLFRead(const char *Cmd) {
// In real-time mode, the first few bytes might be the response of CMD_WTX rather than the real samples
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf read",
"Sniff low frequency signal.\n"
@ -816,7 +817,7 @@ int lf_sniff(bool realtime, bool verbose, uint64_t samples) {
sample_bytes = (sample_bytes / 8) + (sample_bytes % 8 != 0);
SendCommandNG(CMD_LF_SNIFF_RAW_ADC, (uint8_t *)&payload, sizeof(payload));
sample_bytes = WaitForRawDataTimeout(realtimeBuf, sample_bytes, 1000, true);
sample_bytes = WaitForRawDataTimeout(realtimeBuf, sample_bytes, 1000 + FPGA_LOAD_WAIT_TIME, true);
samples = sample_bytes * 8 / bits_per_sample;
getSamplesFromBufEx(realtimeBuf, samples, bits_per_sample, verbose);
@ -842,6 +843,7 @@ int lf_sniff(bool realtime, bool verbose, uint64_t samples) {
}
int CmdLFSniff(const char *Cmd) {
// In real-time mode, the first few bytes might be the response of CMD_WTX rather than the real samples
CLIParserContext *ctx;
CLIParserInit(&ctx, "lf sniff",
"Sniff low frequency signal. You need to configure the LF part on the Proxmark3 device manually.\n"

3
include/common.h
View file

@ -196,6 +196,9 @@ extern bool g_tearoff_enabled;
#define CLEAR_BIT(data, i) *(data + (i / 8)) &= ~(1 << (7 - (i % 8)))
#define FLIP_BIT(data, i) *(data + (i / 8)) ^= (1 << (7 - (i % 8)))
// time for decompressing and loading the image to the FPGA
#define FPGA_LOAD_WAIT_TIME (1500)
// GCC extension
// from client/deps/tinycbor/compilersupport_p.h
#ifdef __GNUC__