CHG: fixes to match the new arguments to the darkside attack (keytype A|B and blockn...

[proxmark3-svn] / armsrc / pcf7931.c

diff --git a/armsrc/pcf7931.c b/armsrc/pcf7931.c
index 24a871aa117d9ff87f8beb6cfd1849ed96f327ba..799167e991fc5159075f5873d2e579531d8b8aea 100644 (file)
--- a/armsrc/pcf7931.c
+++ b/armsrc/pcf7931.c
@@ -7,9 +7,6 @@
 #define T0_PCF 8 //period for the pcf7931 in us
 #define ALLOC 16
 
 #define T0_PCF 8 //period for the pcf7931 in us
 #define ALLOC 16
 

-#define abs(x) ( ((x)<0) ? -(x) : (x) )
-#define max(x,y) ( x<y ? y:x)
-

 int DemodPCF7931(uint8_t **outBlocks) {
 
     uint8_t bits[256] = {0x00};
 int DemodPCF7931(uint8_t **outBlocks) {
 
     uint8_t bits[256] = {0x00};


@@ -71,7 +68,7 @@ int DemodPCF7931(uint8_t **outBlocks) {
 
                        // Switch depending on lc length:
                        // Tolerance is 1/8 of clock rate (arbitrary)
 
                        // Switch depending on lc length:
                        // Tolerance is 1/8 of clock rate (arbitrary)

-                       if (abs(lc-clock/4) < tolerance) {
+                       if (ABS(lc-clock/4) < tolerance) {

                                // 16T0
                                if((i - pmc) == lc) { /* 16T0 was previous one */
                                        /* It's a PMC ! */
                                // 16T0
                                if((i - pmc) == lc) { /* 16T0 was previous one */
                                        /* It's a PMC ! */


@@ -83,7 +80,7 @@ int DemodPCF7931(uint8_t **outBlocks) {
                                else {
                                        pmc = i;
                                }
                                else {
                                        pmc = i;
                                }

-                       } else if (abs(lc-clock/2) < tolerance) {
+                       } else if (ABS(lc-clock/2) < tolerance) {

                                // 32TO
                                if((i - pmc) == lc) { /* 16T0 was previous one */
                                        /* It's a PMC ! */
                                // 32TO
                                if((i - pmc) == lc) { /* 16T0 was previous one */
                                        /* It's a PMC ! */


@@ -98,7 +95,7 @@ int DemodPCF7931(uint8_t **outBlocks) {
                                }
                                else
                                        half_switch++;
                                }
                                else
                                        half_switch++;

-                       } else if (abs(lc-clock) < tolerance) {
+                       } else if (ABS(lc-clock) < tolerance) {

                                // 64TO
                 bits[bitidx++] = 1;
                        } else {
                                // 64TO
                 bits[bitidx++] = 1;
                        } else {


@@ -205,7 +202,7 @@ void ReadPCF7931() {
                                                Blocks[0][ALLOC] = 1;
                                                memcpy(Blocks[1], tmpBlocks[i+1], 16);
                                                Blocks[1][ALLOC] = 1;
                                                Blocks[0][ALLOC] = 1;
                                                memcpy(Blocks[1], tmpBlocks[i+1], 16);
                                                Blocks[1][ALLOC] = 1;

-                                               max_blocks = max((Blocks[1][14] & 0x7f), Blocks[1][15]) + 1;
+                                               max_blocks = MAX((Blocks[1][14] & 0x7f), Blocks[1][15]) + 1;

                                                // Debug print
                                                Dbprintf("(dbg) Max blocks: %d", max_blocks);
                                                num_blocks = 2;
                                                // Debug print
                                                Dbprintf("(dbg) Max blocks: %d", max_blocks);
                                                num_blocks = 2;