X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c0f15a05b36450c0182462d6d9d093c04c602b67..650cd714c4527d6c6d054d12e7202bf3587393d0:/armsrc/pcf7931.c

diff --git a/armsrc/pcf7931.c b/armsrc/pcf7931.c
index 24a871aa..58fd5099 100644
--- 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 abs(x) ( ((x)<0) ? -(x) : (x) )
-#define max(x,y) ( x<y ? y:x)
-
 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)
-			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 ! */
@@ -83,7 +80,7 @@ int DemodPCF7931(uint8_t **outBlocks) {
 				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 ! */
@@ -98,7 +95,7 @@ int DemodPCF7931(uint8_t **outBlocks) {
 				}
 				else
 					half_switch++;
-			} else if (abs(lc-clock) < tolerance) {
+			} else if (ABS(lc-clock) < tolerance) {
 				// 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;
-						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;
@@ -405,7 +402,7 @@ void SendCmdPCF7931(uint32_t * tab){
 	AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT;
 
 	//initialization of the timer
-	AT91C_BASE_PMC->PMC_PCER |= (0x1 << 12) | (0x1 << 13) | (0x1 << 14);
+	AT91C_BASE_PMC->PMC_PCER |= (0x1 << AT91C_ID_TC0);
 	AT91C_BASE_TCB->TCB_BMR = AT91C_TCB_TC0XC0S_NONE | AT91C_TCB_TC1XC1S_TIOA0 | AT91C_TCB_TC2XC2S_NONE;
 	AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKDIS; // timer disable
 	AT91C_BASE_TC0->TC_CMR = AT91C_TC_CLKS_TIMER_DIV3_CLOCK;  //clock at 48/32 MHz
@@ -491,8 +488,6 @@ bool AddBitPCF7931(bool b, uint32_t * tab, int32_t l, int32_t p){
 		tab[u+2] = 24 * T0_PCF + tab[u+1] - l - p;
 		return 0;
 	}
-
-	
 	return 1;
 }