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Code Issues Releases Wiki Activity

Add ESP8266 core v2.6.2 (#905)

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* Add ESP8266 core v2.6.2

* Upstream ESP8266 Wifi fixes

* Replace disable_interrupt with InterruptLock C++ class

* Update code to use InterruptLock

* Lint

* Update dht.cpp

* Improve InterruptLock docs, mark as ICACHE_RAM_ATTR

* Fixes
This commit is contained in:
Otto Winter
2019-12-04 19:30:10 +01:00
committed by GitHub
parent bba6d6897d
commit 7a6df38515
12 changed files with 291 additions and 180 deletions
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137
esphome/components/dht/dht.cpp
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@@ -71,80 +71,101 @@ void DHT::set_dht_model(DHTModel model) {
this->model_ = model;
this->is_auto_detect_ = model == DHT_MODEL_AUTO_DETECT;
}
bool HOT DHT::read_sensor_(float *temperature, float *humidity, bool report_errors) {
bool HOT ICACHE_RAM_ATTR DHT::read_sensor_(float *temperature, float *humidity, bool report_errors) {
*humidity = NAN;
*temperature = NAN;
disable_interrupts();
this->pin_->digital_write(false);
this->pin_->pin_mode(OUTPUT);
this->pin_->digital_write(false);
if (this->model_ == DHT_MODEL_DHT11) {
delayMicroseconds(18000);
} else if (this->model_ == DHT_MODEL_SI7021) {
delayMicroseconds(500);
this->pin_->digital_write(true);
delayMicroseconds(40);
} else {
delayMicroseconds(800);
}
this->pin_->pin_mode(INPUT_PULLUP);
delayMicroseconds(40);
int error_code = 0;
int8_t i = 0;
uint8_t data[5] = {0, 0, 0, 0, 0};
uint8_t bit = 7;
uint8_t byte = 0;
for (int8_t i = -1; i < 40; i++) {
uint32_t start_time = micros();
{
InterruptLock lock;
// Wait for rising edge
while (!this->pin_->digital_read()) {
if (micros() - start_time > 90) {
enable_interrupts();
if (report_errors) {
if (i < 0) {
ESP_LOGW(TAG, "Waiting for DHT communication to clear failed!");
} else {
ESP_LOGW(TAG, "Rising edge for bit %d failed!", i);
}
this->pin_->digital_write(false);
this->pin_->pin_mode(OUTPUT);
this->pin_->digital_write(false);
if (this->model_ == DHT_MODEL_DHT11) {
delayMicroseconds(18000);
} else if (this->model_ == DHT_MODEL_SI7021) {
delayMicroseconds(500);
this->pin_->digital_write(true);
delayMicroseconds(40);
} else {
delayMicroseconds(800);
}
this->pin_->pin_mode(INPUT_PULLUP);
delayMicroseconds(40);
uint8_t bit = 7;
uint8_t byte = 0;
for (i = -1; i < 40; i++) {
uint32_t start_time = micros();
// Wait for rising edge
while (!this->pin_->digital_read()) {
if (micros() - start_time > 90) {
if (i < 0)
error_code = 1;
else
error_code = 2;
break;
}
return false;
}
}
if (error_code != 0)
break;
start_time = micros();
uint32_t end_time = start_time;
start_time = micros();
uint32_t end_time = start_time;
// Wait for falling edge
while (this->pin_->digital_read()) {
if ((end_time = micros()) - start_time > 90) {
enable_interrupts();
if (report_errors) {
if (i < 0) {
ESP_LOGW(TAG, "Requesting data from DHT failed!");
} else {
ESP_LOGW(TAG, "Falling edge for bit %d failed!", i);
}
// Wait for falling edge
while (this->pin_->digital_read()) {
if ((end_time = micros()) - start_time > 90) {
if (i < 0)
error_code = 3;
else
error_code = 4;
break;
}
return false;
}
}
if (error_code != 0)
break;
if (i < 0)
continue;
if (i < 0)
continue;
if (end_time - start_time >= 40) {
data[byte] |= 1 << bit;
if (end_time - start_time >= 40) {
data[byte] |= 1 << bit;
}
if (bit == 0) {
bit = 7;
byte++;
} else
bit--;
}
if (bit == 0) {
bit = 7;
byte++;
} else
bit--;
}
enable_interrupts();
if (!report_errors && error_code != 0)
return false;
switch (error_code) {
case 1:
ESP_LOGW(TAG, "Waiting for DHT communication to clear failed!");
return false;
case 2:
ESP_LOGW(TAG, "Rising edge for bit %d failed!", i);
return false;
case 3:
ESP_LOGW(TAG, "Requesting data from DHT failed!");
return false;
case 4:
ESP_LOGW(TAG, "Falling edge for bit %d failed!", i);
return false;
case 0:
default:
break;
}
ESP_LOGVV(TAG,
"Data: Hum=0b" BYTE_TO_BINARY_PATTERN BYTE_TO_BINARY_PATTERN