From ade5cd40b1aa7a5894242aff37b3985605165cd1 Mon Sep 17 00:00:00 2001
From: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Date: Wed, 1 Feb 2012 16:00:20 +0200
Subject: [PATCH] tag: Caching type3 tag manufacturer ID and attribute block

Caching manufacturer ID and attribute block in tag data.
This data is required while sending write command for Type3 tag.
---
 include/tag.h |  4 ++++
 src/tag.c     | 44 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/include/tag.h b/include/tag.h
index 7044528..3389649 100644
--- a/include/tag.h
+++ b/include/tag.h
@@ -88,5 +88,9 @@ void near_tag_set_max_ndef_size(struct near_tag *tag, uint16_t size);
 uint16_t near_tag_get_max_ndef_size(struct near_tag *tag);
 void near_tag_set_c_apdu_max_size(struct near_tag *tag, uint16_t size);
 uint16_t near_tag_get_c_apdu_max_size(struct near_tag *tag);
+void near_tag_set_idm(struct near_tag *tag, uint8_t *idm, uint8_t len);
+uint8_t *near_tag_get_idm(struct near_tag *tag, uint8_t *len);
+void near_tag_set_attr_block(struct near_tag *tag, uint8_t *attr, uint8_t len);
+uint8_t *near_tag_get_attr_block(struct near_tag *tag, uint8_t *len);
 
 #endif
diff --git a/src/tag.c b/src/tag.c
index ada7b2f..9043ba9 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -36,6 +36,9 @@
 
 #define TAG_UID_MAX_LEN 8
 
+#define TYPE3_IDM_LEN 8
+#define TYPE3_ATTR_BLOCK_SIZE 16
+
 struct near_tag {
 	uint32_t adapter_idx;
 	uint32_t target_idx;
@@ -51,6 +54,11 @@ struct near_tag {
 	GList *records;
 
 	struct {
+		uint8_t IDm[TYPE3_IDM_LEN];
+		uint8_t attr[TYPE3_ATTR_BLOCK_SIZE];
+	} t3;
+
+	struct {
 		uint16_t max_ndef_size;
 		uint16_t c_apdu_max_size;
 	} t4;
@@ -235,6 +243,42 @@ uint16_t near_tag_get_c_apdu_max_size(struct near_tag *tag)
 	return tag->t4.c_apdu_max_size;
 }
 
+void near_tag_set_idm(struct near_tag *tag, uint8_t *idm, uint8_t len)
+{
+	if (tag == NULL || len > TYPE3_IDM_LEN)
+		return;
+
+	memset(tag->t3.IDm, 0, TYPE3_IDM_LEN);
+	memcpy(tag->t3.IDm, idm, len);
+}
+
+uint8_t *near_tag_get_idm(struct near_tag *tag, uint8_t *len)
+{
+	if (tag == NULL || len == NULL)
+		return NULL;
+
+	*len = TYPE3_IDM_LEN;
+	return tag->t3.IDm;
+}
+
+void near_tag_set_attr_block(struct near_tag *tag, uint8_t *attr, uint8_t len)
+{
+	if (tag == NULL || len > TYPE3_ATTR_BLOCK_SIZE)
+		return;
+
+	memset(tag->t3.attr, 0, TYPE3_ATTR_BLOCK_SIZE);
+	memcpy(tag->t3.attr, attr, len);
+}
+
+uint8_t *near_tag_get_attr_block(struct near_tag *tag, uint8_t *len)
+{
+	if (tag == NULL || len == NULL)
+		return NULL;
+
+	*len = TYPE3_ATTR_BLOCK_SIZE;
+	return tag->t3.attr;
+}
+
 int near_tag_driver_register(struct near_tag_driver *driver)
 {
 	DBG("");
-- 
2.7.4