From 1b3d96ab2dfa32dcd43525b2bf4808414fc26dba Mon Sep 17 00:00:00 2001
From: merlokk <807634+merlokk@users.noreply.github.com>
Date: Tue, 29 Jan 2019 19:30:15 +0200
Subject: [PATCH] add apdu chaining to arm side

---
 armsrc/iso14443a.c | 3 +++
 include/mifare.h   | 1 +
 2 files changed, 4 insertions(+)

diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index 257c39b1f..daeb6b749 100644
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -2226,6 +2226,9 @@ int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data, uint8_t *res) {
 	if (cmd_len) {
 		// ISO 14443 APDU frame: PCB [CID] [NAD] APDU CRC PCB=0x02
 		real_cmd[0] = 0x02; // bnr,nad,cid,chn=0; i-block(0x00)	
+		if (param & ISO14A_SEND_CHAINING) {
+			real_cmd[0] |= 0x10;
+		}
 		// put block number into the PCB
 		real_cmd[0] |= iso14_pcb_blocknum;
 		memcpy(real_cmd + 1, cmd, cmd_len);
diff --git a/include/mifare.h b/include/mifare.h
index cda7cfe9d..1373317e7 100644
--- a/include/mifare.h
+++ b/include/mifare.h
@@ -36,6 +36,7 @@ typedef enum ISO14A_COMMAND {
 	ISO14A_NO_SELECT =			(1 << 7),
 	ISO14A_TOPAZMODE =			(1 << 8),
 	ISO14A_NO_RATS =            (1 << 9)
+	ISO14A_SEND_CHAINING =      (1 << 9)
 } iso14a_command_t;
 
 typedef struct {