From 80b4cd9767fda3e3df5eef8ddb09d803bb64a595 Mon Sep 17 00:00:00 2001
From: Romuald Conty <romuald@libnfc.org>
Date: Thu, 5 May 2011 15:00:34 +0000
Subject: [PATCH] chips/pn53x: set some parameters in ISO/IEC 14443A when using
 DEP mode (ie. SAK says ISO/IEC 18092 compliant)

---
 libnfc/chips/pn53x.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/libnfc/chips/pn53x.c b/libnfc/chips/pn53x.c
index ef57c99..e42435c 100644
--- a/libnfc/chips/pn53x.c
+++ b/libnfc/chips/pn53x.c
@@ -1100,6 +1100,19 @@ pn53x_target_init (nfc_device_t * pnd, nfc_target_t * pnt, byte_t * pbtRx, size_
       // Set General Bytes, if relevant
       szGBt = pnt->nti.ndi.szGB;
       if (szGBt) pbtGBt = pnt->nti.ndi.abtGB;
+
+      // Set ATQA (SENS_RES)
+      abtMifareParams[0] = 0x08;
+      abtMifareParams[1] = 0x00;
+      // Set UID
+      // Note: in this mode we can only emulate a single size (4 bytes) UID where the first is hard-wired by PN53x as 0x08
+      abtMifareParams[2] = 0x12;
+      abtMifareParams[3] = 0x34;
+      abtMifareParams[4] = 0x45;
+      // Set SAK (SEL_RES)
+      abtMifareParams[5] = 0x40; // ISO/IEC 18092 compliant
+
+      pbtMifareParams = abtMifareParams;
     break;
     case NMT_ISO14443B:
     case NMT_JEWEL: