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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88
MFRC522.h
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@@ -78,6 +78,88 @@
#include <Arduino.h>
#include <SPI.h>
/////////////////////////////////////////////////////////////////////////////////////
// String tables to be stored in program memory
/////////////////////////////////////////////////////////////////////////////////////
const char _MFRC522_str_STATUS_OK[] PROGMEM = "Success.";
const char _MFRC522_str_STATUS_ERROR[] PROGMEM = "Error in communication.";
const char _MFRC522_str_STATUS_COLLISION[] PROGMEM = "Collission detected.";
const char _MFRC522_str_STATUS_TIMEOUT[] PROGMEM = "Timeout in communication.";
const char _MFRC522_str_STATUS_NO_ROOM[] PROGMEM = "A buffer is not big enough.";
const char _MFRC522_str_STATUS_INTERNAL_ERROR[] PROGMEM = "Internal error in the code. Should not happen.";
const char _MFRC522_str_STATUS_INVALID[] PROGMEM = "Invalid argument.";
const char _MFRC522_str_STATUS_CRC_WRONG[] PROGMEM = "The CRC_A does not match.";
const char _MFRC522_str_STATUS_MIFARE_NACK[] PROGMEM = "A MIFARE PICC responded with NAK.";
const char* const _MFRC522_str_StatusCodeName[] PROGMEM {
_MFRC522_str_STATUS_OK,
_MFRC522_str_STATUS_ERROR,
_MFRC522_str_STATUS_COLLISION,
_MFRC522_str_STATUS_TIMEOUT,
_MFRC522_str_STATUS_NO_ROOM,
_MFRC522_str_STATUS_INTERNAL_ERROR,
_MFRC522_str_STATUS_INVALID,
_MFRC522_str_STATUS_CRC_WRONG,
_MFRC522_str_STATUS_MIFARE_NACK
};
const char _MFRC522_str_PICC_TYPE_UNKNOWN[] PROGMEM = "Unknown type";
const char _MFRC522_str_PICC_TYPE_ISO_14443_4[] PROGMEM = "PICC compliant with ISO/IEC 14443-4";
const char _MFRC522_str_PICC_TYPE_ISO_18092[] PROGMEM = "PICC compliant with ISO/IEC 18092 (NFC)";
const char _MFRC522_str_PICC_TYPE_MIFARE_MINI[] PROGMEM = "MIFARE Mini, 320 bytes";
const char _MFRC522_str_PICC_TYPE_MIFARE_1K[] PROGMEM = "MIFARE 1KB";
const char _MFRC522_str_PICC_TYPE_MIFARE_4K[] PROGMEM = "MIFARE 4KB";
const char _MFRC522_str_PICC_TYPE_MIFARE_UL[] PROGMEM = "MIFARE Ultralight or Ultralight C";
const char _MFRC522_str_PICC_TYPE_MIFARE_PLUS[] PROGMEM = "MIFARE Plus";
const char _MFRC522_str_PICC_TYPE_TNP3XXX[] PROGMEM = "MIFARE TNP3XXX";
const char* const _MFRC522_str_PICC_TypeName[] PROGMEM {
_MFRC522_str_PICC_TYPE_UNKNOWN,
_MFRC522_str_PICC_TYPE_ISO_14443_4,
_MFRC522_str_PICC_TYPE_ISO_18092,
_MFRC522_str_PICC_TYPE_MIFARE_MINI,
_MFRC522_str_PICC_TYPE_MIFARE_1K,
_MFRC522_str_PICC_TYPE_MIFARE_4K,
_MFRC522_str_PICC_TYPE_MIFARE_UL,
_MFRC522_str_PICC_TYPE_MIFARE_PLUS,
_MFRC522_str_PICC_TYPE_TNP3XXX
};
const char _MFRC522_str_ERR_PICC_TYPE_NOT_COMPLETE[] PROGMEM = "SAK indicates UID is not complete.";
const char _MFRC522_str_ERR_PICC_TYPE_TNP3XXX[] PROGMEM = "Dumping memory contents not implemented for that PICC type.";
const char _MFRC522_str_ERR_NO_RESPONSE_AFTER_HALT[] PROGMEM = "Card did not respond to 0x40 after HALT command. Are you sure it is a UID changeable one?";
const char _MFRC522_str_ERR_COMMAND_0x40_RESPONSE[] PROGMEM = "Got bad response on backdoor 0x40 command: ";
const char _MFRC522_str_ERR_COMMAND_0x43_COMM[] PROGMEM = "Error in communication at command 0x43, after successfully executing 0x40";
const char _MFRC522_str_ERR_COMMAND_0x43_RESPONSE[] PROGMEM = "Got bad response on backdoor 0x43 command: ";
const char _MFRC522_str_ERR_WRONG_UID[] PROGMEM = "New UID buffer empty, size 0, or size > 15 given";
const char _MFRC522_str_ERR_NO_CARD[] PROGMEM = "No card was previously selected, and none are available. Failed to set UID.";
const char _MFRC522_str_ERR_AUTH_KEY_A[] PROGMEM = "Failed to authenticate to card for reading, could not set UID: ";
enum _MFRC522_str_Error {
ERR_PICC_TYPE_NOT_COMPLETE,
ERR_PICC_TYPE_TNP3XXX,
ERR_NO_RESPONSE_AFTER_HALT,
ERR_COMMAND_0x40_RESPONSE,
ERR_COMMAND_0x43_COMM,
ERR_COMMAND_0x43_RESPONSE,
ERR_WRONG_UID,
ERR_NO_CARD,
ERR_AUTH_KEY_A
};
const char* const _MFRC522_str_Error[] PROGMEM {
_MFRC522_str_ERR_PICC_TYPE_NOT_COMPLETE,
_MFRC522_str_ERR_PICC_TYPE_TNP3XXX,
_MFRC522_str_ERR_NO_RESPONSE_AFTER_HALT,
_MFRC522_str_ERR_COMMAND_0x40_RESPONSE,
_MFRC522_str_ERR_COMMAND_0x43_COMM,
_MFRC522_str_ERR_COMMAND_0x43_RESPONSE,
_MFRC522_str_ERR_WRONG_UID,
_MFRC522_str_ERR_NO_CARD,
_MFRC522_str_ERR_AUTH_KEY_A
};
class MFRC522 {
public:
// MFRC522 registers. Described in chapter 9 of the datasheet.
@@ -218,7 +300,7 @@ public:
MF_KEY_SIZE = 6 // A Mifare Crypto1 key is 6 bytes.
};
// PICC types we can detect. Remember to update PICC_GetTypeName() if you add more.
// PICC types we can detect. Remember to update string tables and PICC_GetTypeName() if you add more.
enum PICC_Type {
PICC_TYPE_UNKNOWN = 0,
PICC_TYPE_ISO_14443_4 = 1, // PICC compliant with ISO/IEC 14443-4
@@ -232,7 +314,7 @@ public:
PICC_TYPE_NOT_COMPLETE = 255 // SAK indicates UID is not complete.
};
// Return codes from the functions in this class. Remember to update GetStatusCodeName() if you add more.
// Return codes from the functions in this class. Remember to update string tables and GetStatusCodeName() if you add more.
enum StatusCode {
STATUS_OK = 1, // Success
STATUS_ERROR = 2, // Error in communication
@@ -344,6 +426,8 @@ private:
byte _chipSelectPin; // Arduino pin connected to MFRC522's SPI slave select input (Pin 24, NSS, active low)
byte _resetPowerDownPin; // Arduino pin connected to MFRC522's reset and power down input (Pin 6, NRSTPD, active low)
byte MIFARE_TwoStepHelper(byte command, byte blockAddr, long data);
char stringBuffer[100];
};
#endif