43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
#ifndef ISO14443_LAYER3A_H_
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#define ISO14443_LAYER3A_H_
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extern void iso14443_layer3a_state_machine (void *pvParameters);
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enum ISO14443_STATES {
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STARTING_UP, /* Hardware has not been initialized, initialize hardware, go to power-off */
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POWERED_OFF, /* Card not in field, wait for PLL lock */
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IDLE, /* Card in field and powered, wait for REQA or WUPA */
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READY, /* Perform anticollision, wait for select */
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ACTIVE, /* Selected */
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HALT, /* Card halted and powered, wait for WUPA */
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READY_STAR, /* Perform anticollision, wait for select */
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ACTIVE_STAR, /* Selected */
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ERROR, /* Some unrecoverable error has occured */
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};
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#include "iso14443.h"
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extern const u_int8_t ISO14443A_SHORT_FRAME_REQA[ISO14443A_SHORT_FRAME_COMPARE_LENGTH];
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extern const u_int8_t ISO14443A_SHORT_FRAME_WUPA[ISO14443A_SHORT_FRAME_COMPARE_LENGTH];
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/******************** TX ************************************/
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/* Magic delay, don't know where it comes from */
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//#define MAGIC_OFFSET -32
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#define MAGIC_OFFSET -10
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/* Delay from modulation till detection in SSC_DATA */
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#define DETECTION_DELAY 11
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/* See fdt_timinig.dia for these values */
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#define MAX_TF_FIQ_ENTRY_DELAY 16
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#define MAX_TF_FIQ_OVERHEAD 75 /* guesstimate */
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extern volatile int fdt_offset;
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/* standard derived magic values */
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#define ISO14443A_FDT_SLOTLEN 128
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#define ISO14443A_FDT_OFFSET_1 84
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#define ISO14443A_FDT_OFFSET_0 20
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#define ISO14443A_FDT_SHORT_1 (ISO14443A_FDT_SLOTLEN*9 + ISO14443A_FDT_OFFSET_1 +fdt_offset +MAGIC_OFFSET -DETECTION_DELAY)
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#define ISO14443A_FDT_SHORT_0 (ISO14443A_FDT_SLOTLEN*9 + ISO14443A_FDT_OFFSET_0 +fdt_offset +MAGIC_OFFSET -DETECTION_DELAY)
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extern const iso14443_frame ATQA_FRAME;
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#endif /*ISO14443_LAYER3A_H_*/
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