Diego Ostuni
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Diff: lib_NDEF_Text.cpp
- Revision:
- 0:de13951f30f6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/lib_NDEF_Text.cpp Thu Nov 14 10:34:11 2019 +0000
@@ -0,0 +1,175 @@
+/**
+ ******************************************************************************
+ * @file lib_NDEF_Text.h
+ * @author MMY Application Team
+ * @version $Revision: 3210 $
+ * @date $Date: 2016-12-05 15:37:48 +0100 (Mon, 05 Dec 2016) $
+ * @brief This file help to manage Text NDEF file.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT 2015 STMicroelectronics</center></h2>
+ *
+ * Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.st.com/myliberty
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
+ * AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "lib_NDEF_Text.h"
+
+/** @addtogroup NFC_libraries
+ * @{
+ * @brief <b>This is the library used to manage the content of the TAG (data)
+ * But also the specific feature of the tag, for instance
+ * password, gpo... </b>
+ */
+
+
+/** @addtogroup libNFC_FORUM
+ * @{
+ * @brief This part of the library manage data which follow NFC forum organisation.
+ */
+
+/**
+ * @brief This buffer contains the data send/received by TAG
+ */
+extern uint8_t NDEF_Buffer [];
+
+/**
+ * @}
+ */
+
+/** @defgroup libEmail_Public_Functions
+ * @{
+ * @brief This file is used to manage Email (stored or loaded in tag)
+ */
+
+/**
+ * @brief This function write the text in the TAG.
+ * @param text : text to write.
+ * @retval NDEF_OK : NDEF file data written in the tag.
+ * @retval NDEF_ERROR : not able to store NDEF in tag.
+ * @retval NDEF_ERROR_MEMORY_INTERNAL : Cannot write to tag.
+ * @retval NDEF_ERROR_NOT_FORMATED : CCFile data not supported or not present.
+ * @retval NDEF_ERROR_MEMORY_TAG : Size not compatible with memory.
+ * @retval NDEF_ERROR_LOCKED : Tag locked, cannot be write.
+ */
+uint16_t NDEF_WriteText( char *text, I2C * mi2cChannel )
+{
+ uint16_t status = NDEF_ERROR;
+ uint32_t textSize, Offset = 0;
+
+
+ /* TEXT : 1+en+message */
+ textSize = 3 + strlen(text);
+
+ /* TEXT header */
+ NDEF_Buffer[Offset] = 0xD1;
+ if( textSize < 256 ) NDEF_Buffer[Offset] |= 0x10; // Set the SR bit
+ Offset++;
+
+ NDEF_Buffer[Offset++] = TEXT_TYPE_STRING_LENGTH;
+ if( textSize > 255 )
+ {
+ NDEF_Buffer[Offset++] = (textSize & 0xFF000000) >> 24;
+ NDEF_Buffer[Offset++] = (textSize & 0x00FF0000) >> 16;
+ NDEF_Buffer[Offset++] = (textSize & 0x0000FF00) >> 8;
+ NDEF_Buffer[Offset++] = textSize & 0x000000FF;
+ }
+ else
+ {
+ NDEF_Buffer[Offset++] = (uint8_t)textSize;
+ }
+ memcpy( &NDEF_Buffer[Offset], TEXT_TYPE_STRING, TEXT_TYPE_STRING_LENGTH );
+ Offset += TEXT_TYPE_STRING_LENGTH;
+
+ /* TEXT payload */
+ NDEF_Buffer[Offset++] = ISO_ENGLISH_CODE_STRING_LENGTH;
+ memcpy( &NDEF_Buffer[Offset], ISO_ENGLISH_CODE_STRING, ISO_ENGLISH_CODE_STRING_LENGTH );
+ Offset += ISO_ENGLISH_CODE_STRING_LENGTH;
+
+ memcpy( &NDEF_Buffer[Offset], text, strlen(text) );
+ Offset += strlen(text);
+
+ status = NfcTag_WriteNDEF( Offset , NDEF_Buffer, mi2cChannel );
+
+ return status;
+}
+
+
+/**
+ * @brief This function the Text information in a record if any.
+ * @param pRecordStruct Pointer on a NDEF record structure.
+ * @param pText A pointer on a text information structure, used to return the text & its metadata.
+ * @retval NDEF_OK Text information has been retrieved.
+ * @retval NDEF_ERROR The record is not a Text record.
+ * @retval NDEF_ERROR_MEMORY_INTERNAL Language code or Text length is too big for the buffers.
+ */
+uint16_t NDEF_ReadText( sRecordInfo_t *pRecordStruct, NDEF_Text_info_t *pText )
+{
+ uint16_t status = NDEF_ERROR;
+
+ if( pRecordStruct->NDEF_Type == TEXT_TYPE )
+ {
+ /* Get the text metadata (status byte (encoding & language code length) + language code) */
+ NDEF_Text_metadata_t *text_record_info = (NDEF_Text_metadata_t *)pRecordStruct->PayloadBufferAdd;
+
+ uint32_t text_length = pRecordStruct->PayloadLength /* record length */
+ - text_record_info->language_length /* minus language code length */
+ - sizeof(uint8_t); /* minus the status byte length */
+
+ if((text_record_info->language_length >= NDEF_TEXT_LANGUAGE_CODE_MAX_LENGTH) ||
+ (text_length >= NDEF_TEXT_MAX_LENGTH))
+ {
+ /* One of the text info structure buffer is too small */
+ return NDEF_ERROR_MEMORY_INTERNAL;
+ }
+
+ /* Retrieve the encoding */
+ pText->encoding = (NDEF_Text_encoding_t)text_record_info->encoding;
+
+ /* Save the language code string (adding null char at the end) */
+ memcpy(&pText->language_code,text_record_info->language,text_record_info->language_length);
+ pText->language_code[text_record_info->language_length] = '\0';
+
+ /* Copy the text string itself (adding null char at the end) */
+ memcpy(&pText->text, text_record_info->language + text_record_info->language_length,text_length);
+ pText->text[text_length] = '\0';
+
+ status = NDEF_OK;
+ }
+ else
+ {
+ /* Not a text record, exit in error */
+ status = NDEF_ERROR;
+ }
+
+ return status;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/******************* (C) COPYRIGHT 2015 STMicroelectronics *****END OF FILE****/