unleashed-firmware/lib/nfc/protocols/iso14443_4a/iso14443_4a_poller_i.c
gornekich d92b0a82cc
NFC refactoring (#3050)
"A long time ago in a galaxy far, far away...." we started NFC subsystem refactoring.

Starring:

- @gornekich - NFC refactoring project lead, architect, senior developer
- @gsurkov - architect, senior developer
- @RebornedBrain - senior developer

Supporting roles:

- @skotopes, @DrZlo13, @hedger - general architecture advisors, code review
- @Astrrra, @doomwastaken, @Hellitron, @ImagineVagon333 - quality assurance

Special thanks:

@bettse, @pcunning, @nxv, @noproto, @AloneLiberty and everyone else who has been helping us all this time and contributing valuable knowledges, ideas and source code.
2023-10-24 12:08:09 +09:00

84 lines
2.4 KiB
C

#include "iso14443_4a_poller_i.h"
#include <furi.h>
#include "iso14443_4a_i.h"
#define TAG "Iso14443_4aPoller"
#define ISO14443_4A_FSDI_256 (0x8U)
Iso14443_4aError iso14443_4a_poller_halt(Iso14443_4aPoller* instance) {
furi_assert(instance);
iso14443_3a_poller_halt(instance->iso14443_3a_poller);
instance->poller_state = Iso14443_4aPollerStateIdle;
return Iso14443_4aErrorNone;
}
Iso14443_4aError
iso14443_4a_poller_async_read_ats(Iso14443_4aPoller* instance, Iso14443_4aAtsData* data) {
furi_assert(instance);
bit_buffer_reset(instance->tx_buffer);
bit_buffer_append_byte(instance->tx_buffer, ISO14443_4A_CMD_READ_ATS);
bit_buffer_append_byte(instance->tx_buffer, ISO14443_4A_FSDI_256 << 4);
Iso14443_4aError error = Iso14443_4aErrorNone;
do {
const Iso14443_3aError iso14443_3a_error = iso14443_3a_poller_send_standard_frame(
instance->iso14443_3a_poller,
instance->tx_buffer,
instance->rx_buffer,
ISO14443_4A_POLLER_ATS_FWT_FC);
if(iso14443_3a_error != Iso14443_3aErrorNone) {
FURI_LOG_E(TAG, "ATS request failed");
error = iso14443_4a_process_error(iso14443_3a_error);
break;
} else if(!iso14443_4a_ats_parse(data, instance->rx_buffer)) {
FURI_LOG_E(TAG, "Failed to parse ATS response");
error = Iso14443_4aErrorProtocol;
break;
}
} while(false);
return error;
}
Iso14443_4aError iso14443_4a_poller_send_block(
Iso14443_4aPoller* instance,
const BitBuffer* tx_buffer,
BitBuffer* rx_buffer) {
furi_assert(instance);
bit_buffer_reset(instance->tx_buffer);
iso14443_4_layer_encode_block(instance->iso14443_4_layer, tx_buffer, instance->tx_buffer);
Iso14443_4aError error = Iso14443_4aErrorNone;
do {
Iso14443_3aError iso14443_3a_error = iso14443_3a_poller_send_standard_frame(
instance->iso14443_3a_poller,
instance->tx_buffer,
instance->rx_buffer,
iso14443_4a_get_fwt_fc_max(instance->data));
if(iso14443_3a_error != Iso14443_3aErrorNone) {
error = iso14443_4a_process_error(iso14443_3a_error);
break;
} else if(!iso14443_4_layer_decode_block(
instance->iso14443_4_layer, rx_buffer, instance->rx_buffer)) {
error = Iso14443_4aErrorProtocol;
break;
}
} while(false);
return error;
}