Add performance measurement tools

git-svn-id: https://svn.openpcd.org:2342/trunk@460 6dc7ffe9-61d6-0310-9af1-9938baff3ed1

2 files changed, 23 insertions, 0 deletions

diff --git a/openpicc/application/iso14443a_diffmiller.c b/openpicc/application/iso14443a_diffmiller.c
index 97017f7..0c00107 100644
--- a/openpicc/application/iso14443a_diffmiller.c
+++ b/openpicc/application/iso14443a_diffmiller.c
@@ -93,6 +93,7 @@
 enum symbol {NO_SYM=0, sym_x, sym_y, sym_z};
 enum bit { BIT_ERROR, BIT_SOF, BIT_0, BIT_1, BIT_EOF };
 
+#define PERFORMANCE_COUNTS 10
 struct diffmiller_state {
 	int initialized, pauses_count;
 	enum symbol old_state;
@@ -102,6 +103,8 @@ struct diffmiller_state {
 	u_int16_t byte,crc;
 	u_int8_t parity;
 	u_int8_t last_data_bit;
+	u_int32_t performance[PERFORMANCE_COUNTS][2];
+	size_t perf_index;
 	struct {
 		u_int8_t in_frame:1;
 		u_int8_t frame_finished:1;
@@ -265,6 +268,11 @@ int iso14443a_decode_diffmiller(struct diffmiller_state * const state, iso14443_
 	int counter = state->counter;
 	int last_data_bit = state->last_data_bit;
 	
+	if(state->perf_index < PERFORMANCE_COUNTS) {
+		state->performance[state->perf_index][0] = *offset;
+		state->performance[state->perf_index++][1] = buflen;
+	}
+	
 	for(; *offset < buflen; ) {
 		int delta;
 		if(state->pauses_count)
@@ -377,3 +385,16 @@ struct diffmiller_state *iso14443a_init_diffmiller(int pauses_count)
 	
 	return state;
 }
+
+
+#include "cmd.h"
+void iso14443a_diffmiller_print_performance(struct diffmiller_state * const state)
+{
+	DumpStringToUSB("`");
+	unsigned int i; for(i=0; i<state->perf_index; i++) {
+		if(i>0)DumpStringToUSB(";");
+		DumpUIntToUSB(state->performance[i][0]); DumpStringToUSB(":"); DumpUIntToUSB(state->performance[i][1]);
+	}
+	DumpStringToUSB("'");
+	state->perf_index=0;
+}
diff --git a/openpicc/application/iso14443a_diffmiller.h b/openpicc/application/iso14443a_diffmiller.h
index 7dc9c55..c657f1b 100644
--- a/openpicc/application/iso14443a_diffmiller.h
+++ b/openpicc/application/iso14443a_diffmiller.h
@@ -11,4 +11,6 @@ extern int iso14443a_diffmiller_assert_frame_ended(struct diffmiller_state * con
 		iso14443_frame * const frame);
 extern struct diffmiller_state *iso14443a_init_diffmiller(int pauses_count);
 
+extern void iso14443a_diffmiller_print_performance(struct diffmiller_state * const state);
+
 #endif /*ISO14443A_DIFFMILLER_H_*/