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https://github.com/esphome/esphome.git
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50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
#include "pn7160_i2c.h"
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#include "esphome/core/log.h"
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#include "esphome/core/hal.h"
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namespace esphome {
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namespace pn7160_i2c {
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static const char *const TAG = "pn7160_i2c";
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uint8_t PN7160I2C::read_nfcc(nfc::NciMessage &rx, const uint16_t timeout) {
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if (this->wait_for_irq_(timeout) != nfc::STATUS_OK) {
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ESP_LOGW(TAG, "read_nfcc_() timeout waiting for IRQ");
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return nfc::STATUS_FAILED;
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}
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rx.get_message().resize(nfc::NCI_PKT_HEADER_SIZE);
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if (!this->read_bytes_raw(rx.get_message().data(), nfc::NCI_PKT_HEADER_SIZE)) {
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return nfc::STATUS_FAILED;
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}
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uint8_t length = rx.get_payload_size();
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if (length > 0) {
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rx.get_message().resize(length + nfc::NCI_PKT_HEADER_SIZE);
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if (!this->read_bytes_raw(rx.get_message().data() + nfc::NCI_PKT_HEADER_SIZE, length)) {
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return nfc::STATUS_FAILED;
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}
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}
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// semaphore to ensure transaction is complete before returning
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if (this->wait_for_irq_(pn7160::NFCC_DEFAULT_TIMEOUT, false) != nfc::STATUS_OK) {
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ESP_LOGW(TAG, "read_nfcc_() post-read timeout waiting for IRQ line to clear");
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return nfc::STATUS_FAILED;
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}
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return nfc::STATUS_OK;
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}
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uint8_t PN7160I2C::write_nfcc(nfc::NciMessage &tx) {
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if (this->write(tx.encode().data(), tx.encode().size()) == i2c::ERROR_OK) {
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return nfc::STATUS_OK;
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}
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return nfc::STATUS_FAILED;
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}
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void PN7160I2C::dump_config() {
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PN7160::dump_config();
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LOG_I2C_DEVICE(this);
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}
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} // namespace pn7160_i2c
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} // namespace esphome
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