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#ifndef ISO14443_LAYER3A_H_
#define ISO14443_LAYER3A_H_
extern void iso14443_layer3a_state_machine (void *pvParameters);
enum ISO14443_STATES {
STARTING_UP, /* Hardware has not been initialized, initialize hardware, go to power-off */
POWERED_OFF, /* Card not in field, wait for PLL lock */
IDLE, /* Card in field and powered, wait for REQA or WUPA */
READY, /* Perform anticollision, wait for select */
ACTIVE, /* Selected */
HALT, /* Card halted and powered, wait for WUPA */
READY_STAR, /* Perform anticollision, wait for select */
ACTIVE_STAR, /* Selected */
ERROR, /* Some unrecoverable error has occured */
};
/* standard derived magic values */
#define ISO14443A_FDT_SHORT_1 1236
#define ISO14443A_FDT_SHORT_0 1172
#ifdef FOUR_TIMES_OVERSAMPLING
/* definitions for four-times oversampling */
/* Sample values for the REQA and WUPA short frames */
#define REQA 0x10410441
#define WUPA 0x04041041
/* Start of frame sample for SSC compare 0 */
#define ISO14443A_SOF_SAMPLE 0x01
#define ISO14443A_SOF_LEN 4
/* Length in samples of a short frame */
#define ISO14443A_SHORT_LEN 32
#else
/* definitions for two-times oversampling */
#define REQA 0x4929
#define WUPA 0x2249
#define ISO14443A_SOF_SAMPLE 0x01
#define ISO14443A_SOF_LEN 2
#define ISO14443A_SHORT_LEN 16
#endif
#endif /*ISO14443_LAYER3A_H_*/
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