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Pn532 non blocking scan (#5191)

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This commit is contained in:
Alexander Dimitrov
2023-11-28 23:17:16 +02:00
committed by GitHub
parent 087733c2fd
commit 6424f831e2
6 changed files with 92 additions and 48 deletions
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esphome/components/pn532_spi/pn532_spi.cpp
+12 -34
View File
@@ -21,6 +21,14 @@ void PN532Spi::setup() {
PN532::setup();
}
bool PN532Spi::is_read_ready() {
this->enable();
this->write_byte(0x02);
bool ready = this->read_byte() == 0x01;
this->disable();
return ready;
}
bool PN532Spi::write_data(const std::vector<uint8_t> &data) {
this->enable();
delay(2);
@@ -34,24 +42,8 @@ bool PN532Spi::write_data(const std::vector<uint8_t> &data) {
}
bool PN532Spi::read_data(std::vector<uint8_t> &data, uint8_t len) {
ESP_LOGV(TAG, "Waiting for ready byte...");
uint32_t start_time = millis();
while (true) {
this->enable();
// First byte, communication mode: Read state
this->write_byte(0x02);
bool ready = this->read_byte() == 0x01;
this->disable();
if (ready)
break;
ESP_LOGV(TAG, "Not ready yet...");
if (millis() - start_time > 100) {
ESP_LOGV(TAG, "Timed out waiting for readiness from PN532!");
return false;
}
yield();
if (this->read_ready_(true) != pn532::PN532ReadReady::READY) {
return false;
}
// Read data (transmission from the PN532 to the host)
@@ -72,22 +64,8 @@ bool PN532Spi::read_data(std::vector<uint8_t> &data, uint8_t len) {
bool PN532Spi::read_response(uint8_t command, std::vector<uint8_t> &data) {
ESP_LOGV(TAG, "Reading response");
uint32_t start_time = millis();
while (true) {
this->enable();
// First byte, communication mode: Read state
this->write_byte(0x02);
bool ready = this->read_byte() == 0x01;
this->disable();
if (ready)
break;
ESP_LOGV(TAG, "Not ready yet...");
if (millis() - start_time > 100) {
ESP_LOGV(TAG, "Timed out waiting for readiness from PN532!");
return false;
}
yield();
if (this->read_ready_(true) != pn532::PN532ReadReady::READY) {
return false;
}
this->enable();
esphome/components/pn532_spi/pn532_spi.h
+1
View File
@@ -18,6 +18,7 @@ class PN532Spi : public pn532::PN532,
void dump_config() override;
protected:
bool is_read_ready() override;
bool write_data(const std::vector<uint8_t> &data) override;
bool read_data(std::vector<uint8_t> &data, uint8_t len) override;
bool read_response(uint8_t command, std::vector<uint8_t> &data) override;