libs/RFID.MFRC522
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Move strings to PROGMEM string tables

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This frees up almost 1KB of dynamic memory.
This commit is contained in:
Sebastian Kurella
2015-01-30 15:29:39 +00:00
parent cd1bc210e2
commit 605a1d755f
2 changed files with 112 additions and 35 deletions
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59
MFRC522.cpp
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@@ -6,6 +6,7 @@
#include <Arduino.h>
#include <MFRC522.h>
#include <avr/pgmspace.h>
/////////////////////////////////////////////////////////////////////////////////////
// Functions for setting up the Arduino
@@ -1072,20 +1073,11 @@ byte MFRC522::PCD_MIFARE_Transceive( byte *sendData, ///< Pointer to the data t
*/
const char *MFRC522::GetStatusCodeName(byte code ///< One of the StatusCode enums.
) {
switch (code) {
case STATUS_OK: return "Success."; break;
case STATUS_ERROR: return "Error in communication."; break;
case STATUS_COLLISION: return "Collission detected."; break;
case STATUS_TIMEOUT: return "Timeout in communication."; break;
case STATUS_NO_ROOM: return "A buffer is not big enough."; break;
case STATUS_INTERNAL_ERROR: return "Internal error in the code. Should not happen."; break;
case STATUS_INVALID: return "Invalid argument."; break;
case STATUS_CRC_WRONG: return "The CRC_A does not match."; break;
case STATUS_MIFARE_NACK: return "A MIFARE PICC responded with NAK."; break;
default:
return "Unknown error";
break;
if (code == 0 || code > STATUS_MIFARE_NACK) {
return "Unknown error";
}
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_StatusCodeName[code - 1])));
return stringBuffer;
} // End GetStatusCodeName()
/**
@@ -1127,19 +1119,12 @@ byte MFRC522::PICC_GetType(byte sak ///< The SAK byte returned from PICC_Select
*/
const char *MFRC522::PICC_GetTypeName(byte piccType ///< One of the PICC_Type enums.
) {
switch (piccType) {
case PICC_TYPE_ISO_14443_4: return "PICC compliant with ISO/IEC 14443-4"; break;
case PICC_TYPE_ISO_18092: return "PICC compliant with ISO/IEC 18092 (NFC)"; break;
case PICC_TYPE_MIFARE_MINI: return "MIFARE Mini, 320 bytes"; break;
case PICC_TYPE_MIFARE_1K: return "MIFARE 1KB"; break;
case PICC_TYPE_MIFARE_4K: return "MIFARE 4KB"; break;
case PICC_TYPE_MIFARE_UL: return "MIFARE Ultralight or Ultralight C"; break;
case PICC_TYPE_MIFARE_PLUS: return "MIFARE Plus"; break;
case PICC_TYPE_TNP3XXX: return "MIFARE TNP3XXX"; break;
case PICC_TYPE_NOT_COMPLETE: return "SAK indicates UID is not complete."; break;
case PICC_TYPE_UNKNOWN:
default: return "Unknown type"; break;
if (piccType == PICC_TYPE_UNKNOWN) {
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_PICC_TYPE_NOT_COMPLETE])));
} else {
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_PICC_TypeName[piccType])));
}
return stringBuffer;
} // End PICC_GetTypeName()
/**
@@ -1184,7 +1169,8 @@ void MFRC522::PICC_DumpToSerial(Uid *uid ///< Pointer to Uid struct returned fro
case PICC_TYPE_ISO_18092:
case PICC_TYPE_MIFARE_PLUS:
case PICC_TYPE_TNP3XXX:
Serial.println("Dumping memory contents not implemented for that PICC type.");
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_PICC_TYPE_TNP3XXX])));
Serial.println(stringBuffer);
break;
case PICC_TYPE_UNKNOWN:
@@ -1458,7 +1444,8 @@ bool MFRC522::MIFARE_OpenUidBackdoor(bool logErrors) {
byte status = PCD_TransceiveData(&cmd, (byte)1, response, &received, &validBits, (byte)0, false); // 40
if( status != STATUS_OK ) {
if( logErrors ) {
Serial.println("Card did not respond to 0x40 after HALT command. Are you sure it is a UID changeable one?");
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_NO_RESPONSE_AFTER_HALT])));
Serial.println(stringBuffer);
Serial.print("Error name: ");
Serial.println(GetStatusCodeName(status));
}
@@ -1466,7 +1453,8 @@ bool MFRC522::MIFARE_OpenUidBackdoor(bool logErrors) {
}
if ( received != 1 || response[0] != 0x0A ) {
if ( logErrors ) {
Serial.print("Got bad response on backdoor 0x40 command: ");
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_COMMAND_0x40_RESPONSE])));
Serial.print(stringBuffer);
Serial.print(response[0], HEX);
Serial.print(" (");
Serial.print(validBits);
@@ -1480,7 +1468,8 @@ bool MFRC522::MIFARE_OpenUidBackdoor(bool logErrors) {
status = PCD_TransceiveData(&cmd, (byte)1, response, &received, &validBits, (byte)0, false); // 43
if( status != STATUS_OK ) {
if( logErrors ) {
Serial.println("Error in communication at command 0x43, after successfully executing 0x40");
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_COMMAND_0x43_COMM])));
Serial.println(stringBuffer);
Serial.print("Error name: ");
Serial.println(GetStatusCodeName(status));
}
@@ -1488,7 +1477,8 @@ bool MFRC522::MIFARE_OpenUidBackdoor(bool logErrors) {
}
if ( received != 1 || response[0] != 0x0A ) {
if ( logErrors ) {
Serial.print("Got bad response on backdoor 0x43 command: ");
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_COMMAND_0x43_RESPONSE])));
Serial.print(stringBuffer);
Serial.print(response[0], HEX);
Serial.print(" (");
Serial.print(validBits);
@@ -1514,7 +1504,8 @@ bool MFRC522::MIFARE_SetUid(byte* newUid, byte uidSize, bool logErrors) {
// UID + BCC byte can not be larger than 16 together
if ( !newUid || !uidSize || uidSize > 15) {
if ( logErrors ) {
Serial.println("New UID buffer empty, size 0, or size > 15 given");
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_WRONG_UID])));
Serial.println(stringBuffer);
}
return false;
}
@@ -1533,7 +1524,8 @@ bool MFRC522::MIFARE_SetUid(byte* newUid, byte uidSize, bool logErrors) {
// PICC_WakeupA(atqa_answer, &atqa_size);
if ( !PICC_IsNewCardPresent() || !PICC_ReadCardSerial() ) {
Serial.println("No card was previously selected, and none are available. Failed to set UID.");
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_NO_CARD])));
Serial.println(stringBuffer);
return false;
}
@@ -1541,7 +1533,8 @@ bool MFRC522::MIFARE_SetUid(byte* newUid, byte uidSize, bool logErrors) {
if ( status != STATUS_OK ) {
// We tried, time to give up
if ( logErrors ) {
Serial.println("Failed to authenticate to card for reading, could not set UID: ");
strcpy_P(stringBuffer, (char*)pgm_read_word(&(_MFRC522_str_Error[ERR_AUTH_KEY_A])));
Serial.println(stringBuffer);
Serial.println(GetStatusCodeName(status));
}
return false;