drivers/sensors/pn532/pn532_mifare.c

   1 /**************************************************************************/
   2 /*!
   3     @file     pn532_mifare.c
   4 */
   5 /**************************************************************************/
   6 #include <string.h>
   7
   8 #include "pn532.h"
   9 #include "pn532_mifare.h"
  10
  11 bool pn532MifareCmd(const pn532_mifare_cmd_t mc, const uint8_t ui8Block, pn532_mifare_param_t * pmp)
  12 {
  13   byte_t  abtRx[265];
  14   size_t  szRx = sizeof(abtRx);
  15   size_t  szParamLen;
  16   byte_t  abtCmd[265];
  17   bool    bEasyFraming;
  18
  19   abtCmd[0] = mc;               // The MIFARE Classic command
  20   abtCmd[1] = ui8Block;         // The block address (1K=0x00..0x39, 4K=0x00..0xff)
  21
  22   switch (mc) {
  23     // Read and store command have no parameter
  24   case PN532_MIFARE_CMD_READ:
  25   case PN532_MIFARE_CMD_STORE:
  26     szParamLen = 0;
  27     break;
  28
  29     // Authenticate command
  30   case PN532_MIFARE_CMD_AUTH_A:
  31   case PN532_MIFARE_CMD_AUTH_B:
  32     szParamLen = sizeof (pn532_mifare_param_auth_t);
  33     break;
  34
  35     // Data command
  36   case PN532_MIFARE_CMD_WRITE:
  37     szParamLen = sizeof (pn532_mifare_param_data_t);
  38     break;
  39
  40     // Value command
  41   case PN532_MIFARE_CMD_DECREMENT:
  42   case PN532_MIFARE_CMD_INCREMENT:
  43   case PN532_MIFARE_CMD_TRANSFER:
  44     szParamLen = sizeof (pn532_mifare_param_value_t);
  45     break;
  46
  47     // Please fix your code, you never should reach this statement
  48   default:
  49     return false;
  50     break;
  51   }
  52
  53   // When available, copy the parameter bytes
  54   if (szParamLen)
  55     memcpy (abtCmd + 2, (byte_t *) pmp, szParamLen);
  56
  57 //  bEasyFraming = pnd->bEasyFraming;
  58 //  if (!nfc_configure (pnd, NDO_EASY_FRAMING, true)) {
  59 //    nfc_perror (pnd, "nfc_configure");
  60 //    return false;
  61 //  }
  62 //
  63 //  // Fire the mifare command
  64 //  if (!nfc_initiator_transceive_bytes (pnd, abtCmd, 2 + szParamLen, abtRx, &szRx)) {
  65 //    if (pnd->iLastError == EINVRXFRAM) {
  66 //      // "Invalid received frame" AKA EINVRXFRAM,  usual means we are
  67 //      // authenticated on a sector but the requested MIFARE cmd (read, write)
  68 //      // is not permitted by current acces bytes;
  69 //      // So there is nothing to do here.
  70 //    } else {
  71 //      nfc_perror (pnd, "nfc_initiator_transceive_bytes");
  72 //    }
  73 //    nfc_configure (pnd, NDO_EASY_FRAMING, bEasyFraming);
  74 //    return false;
  75 //  }
  76 //  if (!nfc_configure (pnd, NDO_EASY_FRAMING, bEasyFraming)) {
  77 //    nfc_perror (pnd, "nfc_configure");
  78 //    return false;
  79 //  }
  80 //
  81 //  // When we have executed a read command, copy the received bytes into the param
  82 //  if (mc == MC_READ) {
  83 //    if (szRx == 16) {
  84 //      memcpy (pmp->mpd.abtData, abtRx, 16);
  85 //    } else {
  86 //      return false;
  87 //    }
  88 //  }
  89
  90   // Command succesfully executed
  91   return true;
  92 }