Refactoring of BigBuf handling in order to prepare for more efficient memory allocati...

[proxmark3-svn] / armsrc / lfops.c

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index 3cc98446e6afd107297d46e45a304403c96b447c..201a52f20e05c3395fb9ac2b138ef8c6553b3c71 100644 (file)
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -25,8 +25,8 @@
 */
 void DoAcquisition125k_internal(int trigger_threshold,bool silent)
 {
-    uint8_t *dest = (uint8_t *)BigBuf;
-    int n = sizeof(BigBuf);
+    uint8_t *dest = BigBuf_get_addr();
+    int n = BigBuf_max_trace_len();
     int i;
 
     memset(dest, 0, n);
@@ -177,8 +177,8 @@ void ReadTItag(void)
  #define FREQLO 123200
  #define FREQHI 134200
 
-    signed char *dest = (signed char *)BigBuf;
-    int n = sizeof(BigBuf);
+    signed char *dest = (signed char *)BigBuf_get_addr();
+    uint16_t n = BigBuf_max_trace_len();
     // 128 bit shift register [shift3:shift2:shift1:shift0]
     uint32_t shift3 = 0, shift2 = 0, shift1 = 0, shift0 = 0;
 
@@ -330,7 +330,8 @@ void AcquireTiType(void)
  #define TIBUFLEN 1250
 
     // clear buffer
-    memset(BigBuf,0,sizeof(BigBuf));
+       uint32_t *BigBuf = (uint32_t *)BigBuf_get_addr();
+    memset(BigBuf,0,BigBuf_max_trace_len()/sizeof(uint32_t));
 
     // Set up the synchronous serial port
     AT91C_BASE_PIOA->PIO_PDR = GPIO_SSC_DIN;
@@ -378,7 +379,7 @@ void AcquireTiType(void)
     AT91C_BASE_PIOA->PIO_PDR = GPIO_SSC_DOUT;
     AT91C_BASE_PIOA->PIO_ASR = GPIO_SSC_DIN | GPIO_SSC_DOUT;
 
-    char *dest = (char *)BigBuf;
+    char *dest = (char *)BigBuf_get_addr();
     n = TIBUFLEN*32;
     // unpack buffer
     for (i=TIBUFLEN-1; i>=0; i--) {
@@ -467,7 +468,7 @@ void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
 void SimulateTagLowFrequency(int period, int gap, int ledcontrol)
 {
     int i;
-    uint8_t *tab = (uint8_t *)BigBuf;
+    uint8_t *tab = BigBuf_get_addr();
 
     FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
     FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT);
@@ -527,7 +528,7 @@ void SimulateTagLowFrequencyBidir(int divisor, int t0)
 
 // compose fc/8 fc/10 waveform
 static void fc(int c, int *n) {
-    uint8_t *dest = (uint8_t *)BigBuf;
+    uint8_t *dest = BigBuf_get_addr();
     int idx;
 
     // for when we want an fc8 pattern every 4 logical bits
@@ -631,7 +632,7 @@ void CmdHIDsimTAG(int hi, int lo, int ledcontrol)
 // loop to get raw HID waveform then FSK demodulate the TAG ID from it
 void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 {
-    uint8_t *dest = (uint8_t *)BigBuf;
+    uint8_t *dest = BigBuf_get_addr();
 
     size_t size=sizeof(BigBuf); 
     uint32_t hi2=0, hi=0, lo=0;
@@ -646,6 +647,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 
         DoAcquisition125k_internal(-1,true);
         // FSK demodulator
+               idx = HIDdemodFSK(dest, BigBuf_max_trace_len(), &hi2, &hi, &lo);
         WDT_HIT();
         size = sizeof(BigBuf);
 
@@ -720,7 +722,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 
 void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 {
-    uint8_t *dest = (uint8_t *)BigBuf;
+    uint8_t *dest = BigBuf_get_addr();
 
        size_t size=0, idx=0;
     int clk=0, invert=0, errCnt=0;
@@ -734,7 +736,7 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
         if (ledcontrol) LED_A_ON();
 
         DoAcquisition125k_internal(-1,true);
-        size  = sizeof(BigBuf);
+        size  = BigBuf_max_trace_len();
         //Dbprintf("DEBUG: Buffer got");
                //askdemod and manchester decode
                errCnt = askmandemod(dest, &size, &clk, &invert);
@@ -772,7 +774,7 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 
 void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 {
-    uint8_t *dest = (uint8_t *)BigBuf;
+    uint8_t *dest = BigBuf_get_addr();
     int idx=0;
     uint32_t code=0, code2=0;
     uint8_t version=0;
@@ -787,7 +789,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
         DoAcquisition125k_internal(-1,true);
         //fskdemod and get start index
         WDT_HIT();
-        idx = IOdemodFSK(dest,sizeof(BigBuf));
+        idx = IOdemodFSK(dest, BigBuf_max_trace_len());
         if (idx>0){
             //valid tag found
 
@@ -959,11 +961,11 @@ void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t PwdMod
 // Read one card block in page 0
 void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode)
 {
-    uint8_t *dest = (uint8_t *)BigBuf;
+    uint8_t *dest = BigBuf_get_addr();
     //int m=0, i=0; //enio adjustment 12/10/14
     uint32_t m=0, i=0;
     FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
-    m = sizeof(BigBuf);
+    m = BigBuf_max_trace_len();
     // Clear destination buffer before sending the command
     memset(dest, 128, m);
     // Connect the A/D to the peak-detected low-frequency path.
@@ -1024,11 +1026,11 @@ void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode)
 
 // Read card traceability data (page 1)
 void T55xxReadTrace(void){
-    uint8_t *dest = (uint8_t *)BigBuf;
+    uint8_t *dest = BigBuf_get_addr();
     int m=0, i=0;
 
     FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
-    m = sizeof(BigBuf);
+    m = BigBuf_max_trace_len();
     // Clear destination buffer before sending the command
     memset(dest, 128, m);
     // Connect the A/D to the peak-detected low-frequency path.
@@ -1378,8 +1380,8 @@ void CopyIndala224toT55x7(int uid1, int uid2, int uid3, int uid4, int uid5, int
 int DemodPCF7931(uint8_t **outBlocks) {
     uint8_t BitStream[256];
     uint8_t Blocks[8][16];
-    uint8_t *GraphBuffer = (uint8_t *)BigBuf;
-    int GraphTraceLen = sizeof(BigBuf);
+    uint8_t *GraphBuffer = BigBuf_get_addr();
+    int GraphTraceLen = BigBuf_max_trace_len();
     int i, j, lastval, bitidx, half_switch;
     int clock = 64;
     int tolerance = clock / 8;
@@ -1796,7 +1798,7 @@ void EM4xLogin(uint32_t Password) {
 void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {
 
     uint8_t fwd_bit_count;
-    uint8_t *dest = (uint8_t *)BigBuf;
+    uint8_t *dest = BigBuf_get_addr();
     int m=0, i=0;
 
     //If password mode do login
@@ -1806,7 +1808,7 @@ void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {
     fwd_bit_count = Prepare_Cmd( FWD_CMD_READ );
     fwd_bit_count += Prepare_Addr( Address );
 
-    m = sizeof(BigBuf);
+    m = BigBuf_max_trace_len();
     // Clear destination buffer before sending the command
     memset(dest, 128, m);
     // Connect the A/D to the peak-detected low-frequency path.