From 4caa2ba610367df1d347f44b7bd2b4422ab8500d Mon Sep 17 00:00:00 2001
From: merlokk <807634+merlokk@users.noreply.github.com>
Date: Thu, 14 Mar 2019 16:23:27 +0200
Subject: [PATCH] mad and ndef compiles

---
 client/Makefile | 2 ++
 common/crc.c    | 9 +++++++++
 common/crc.h    | 4 ++++
 3 files changed, 15 insertions(+)

diff --git a/client/Makefile b/client/Makefile
index 2064f212..2b5e9ae6 100644
--- a/client/Makefile
+++ b/client/Makefile
@@ -143,6 +143,8 @@ CMDSRCS = 	$(SRC_SMARTCARD) \
 			whereami.c\
 			mifare/mifarehost.c\
 			mifare/mifare4.c\
+			mifare/mad.c \
+			mifare/ndef.c \
 			parity.c\
 			crc.c \
 			crc16.c \
diff --git a/common/crc.c b/common/crc.c
index 0c73474f..bdbe8661 100644
--- a/common/crc.c
+++ b/common/crc.c
@@ -54,3 +54,12 @@ uint32_t CRC8Maxim(uint8_t *buff, size_t size)
 	}
 	return crc_finish(&crc);
 }
+
+// width=8 poly=0x1d, init=0xc7 (0xe3 - WRONG! but it mentioned in MAD datasheet) refin=false  refout=false  xorout=0x00 name="CRC-8/MIFARE-MAD"
+uint32_t CRC8Mad(uint8_t *buff, size_t size) {
+    crc_t crc;
+    crc_init(&crc, 8, 0x1d, 0xc7, 0);
+    for (int i = 0; i < size; ++i)
+        crc_update(&crc, buff[i], 8);
+    return crc_finish(&crc);
+}
diff --git a/common/crc.h b/common/crc.h
index 946be8a1..1fd32d82 100644
--- a/common/crc.h
+++ b/common/crc.h
@@ -39,6 +39,10 @@ extern uint32_t crc_finish(crc_t *crc);
 
 // Calculate CRC-8/Maxim checksum
 uint32_t CRC8Maxim(uint8_t *buff, size_t size  );
+
+// Calculate CRC-8 Mifare MAD checksum
+uint32_t CRC8Mad(uint8_t *buff, size_t size);
+
 /* Static initialization of a crc structure */
 #define CRC_INITIALIZER(_order, _polynom, _initial_value, _final_xor) { \
 	.state = ((_initial_value) & ((1L<<(_order))-1)), \