Merge pull request #884 from pwpiwi/fix_iclass_snoop

[proxmark3-svn] / client / comms.c

diff --git a/client/comms.c b/client/comms.c
index 190b911093d598b6d859542a6b891ec2d69199d4..5af53715e9fa27470ca934dae87e968553ae0a2a 100644 (file)
--- a/client/comms.c
+++ b/client/comms.c
@@ -301,6 +301,39 @@ bool GetFromBigBuf(uint8_t *dest, int bytes, int start_index, UsbCommand *respon
 }
 
        
+bool GetFromFpgaRAM(uint8_t *dest, int bytes)
+{
+       UsbCommand c = {CMD_HF_PLOT, {0, 0, 0}};
+       SendCommand(&c);
+
+       uint64_t start_time = msclock();
+
+       UsbCommand response;
+       
+       int bytes_completed = 0;
+       bool show_warning = true;
+       while(true) {
+               if (getCommand(&response)) {
+                       if (response.cmd == CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K) {
+                               int copy_bytes = MIN(bytes - bytes_completed, response.arg[1]);
+                               memcpy(dest + response.arg[0], response.d.asBytes, copy_bytes);
+                               bytes_completed += copy_bytes;
+                       } else if (response.cmd == CMD_ACK) {
+                               return true;
+                       }
+               }
+
+               if (msclock() - start_time > 2000 && show_warning) {
+                       PrintAndLog("Waiting for a response from the proxmark...");
+                       PrintAndLog("You can cancel this operation by pressing the pm3 button");
+                       show_warning = false;
+               }
+       }
+
+       return false;
+}
+
+
 bool OpenProxmark(void *port, bool wait_for_port, int timeout, bool flash_mode) {
        char *portname = (char *)port;
        if (!wait_for_port) {