-// Tries to identify cardsize.\r
-// Returns <num> where num is:\r
-// -1 unidentified\r
-// 0 - MINI (320bytes)\r
-// 1 - 1K\r
-// 2 - 2K\r
-// 4 - 4K\r
-int GetCardSize()\r
-{\r
- UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};\r
- SendCommand(&c);\r
-\r
- UsbCommand resp;\r
- WaitForResponse(CMD_ACK,&resp);\r
-\r
- if(resp.arg[0] == 0) {\r
- PrintAndLog("iso14443a card select failed");\r
- return -1;\r
- }\r
- \r
- iso14a_card_select_t *card = (iso14a_card_select_t *)resp.d.asBytes;\r
-\r
- PrintAndLog("Trying to detect card size.");\r
- \r
- uint16_t atqa = 0;\r
- uint8_t sak = 0;\r
- atqa = (card->atqa[1] & 0xff) << 8;\r
- atqa += card->atqa[0] & 0xff;\r
- sak = card->sak;\r
- \r
- // https://code.google.com/p/libnfc/source/browse/libnfc/target-subr.c\r
- \r
- PrintAndLog("found ATAQ: %04X SAK: %02X", atqa, sak);\r
- \r
- \r
- // NXP MIFARE Mini 0.3k\r
- if ( ( (atqa & 0xff0f) == 0x0004) && (sak == 0x09) ) return 0;\r
- \r
- // MIFARE Classic 1K\r
- if ( ((atqa & 0xff0f) == 0x0004) && (sak == 0x08) ) return 1;\r
- \r
- // MIFARE Classik 4K\r
- if ( ((atqa & 0xff0f) == 0x0002) && (sak == 0x18) ) return 4;\r
- \r
- // SmartMX with MIFARE 1K emulation \r
- if ( ((atqa & 0xf0ff) == 0x0004) ) return 1;\r
-\r
- // SmartMX with MIFARE 4K emulation \r
- if ( ((atqa & 0xf0ff) == 0x0002) ) return 4; \r
- \r
- // Infineon MIFARE CLASSIC 1K\r
- if ( ((atqa & 0xffff) == 0x0004) && (sak == 0x88) ) return 1;\r
- \r
- // MFC 4K emulated by Nokia 6212 Classic\r
- if ( ((atqa & 0xffff) == 0x0002) && (sak == 0x38) ) return 4;\r
-\r
- // MFC 4K emulated by Nokia 6131 NFC\r
- if ( ((atqa & 0xffff) == 0x0008) && (sak == 0x38) ) return 4;\r
-\r
- \r
- //PrintAndLog("BEFOOO 1K %02X", (atqa & 0xff0f));\r
- \r
- // MIFARE Plus (4 Byte UID or 4 Byte RID)\r
- // MIFARE Plus (7 Byte UID)\r
- if (\r
- ((atqa & 0xffff) == 0x0002) |\r
- ((atqa & 0xffff) == 0x0004) |\r
- ((atqa & 0xffff) == 0x0042) | \r
- ((atqa & 0xffff) == 0x0044) \r
- )\r
- {\r
- switch(sak){\r
- case 0x08:\r
- case 0x10: {\r
- //case 0x20:\r
- PrintAndLog("2");\r
- return 2;\r
- break;\r
- }\r
- case 0x11:\r
- case 0x18:{\r
- //case 0x20:\r
- PrintAndLog("4");\r
- return 4;\r
- break;\r
- }\r
- }\r
- }\r
- \r
- return -1;\r
-}\r