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Add null GPIO pin (#6611)
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parent
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commit
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3 changed files with 26 additions and 12 deletions
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@ -5,17 +5,13 @@ namespace cst226 {
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void CST226Touchscreen::setup() {
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esph_log_config(TAG, "Setting up CST226 Touchscreen...");
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if (this->reset_pin_ != nullptr) {
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this->reset_pin_->setup();
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this->reset_pin_->digital_write(true);
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delay(5);
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this->reset_pin_->digital_write(false);
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delay(5);
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this->reset_pin_->digital_write(true);
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this->set_timeout(30, [this] { this->continue_setup_(); });
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} else {
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this->continue_setup_();
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}
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this->reset_pin_->setup();
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this->reset_pin_->digital_write(true);
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delay(5);
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this->reset_pin_->digital_write(false);
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delay(5);
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this->reset_pin_->digital_write(true);
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this->set_timeout(30, [this] { this->continue_setup_(); });
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}
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void CST226Touchscreen::update_touches() {
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@ -35,7 +35,7 @@ class CST226Touchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice
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void continue_setup_();
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InternalGPIOPin *interrupt_pin_{};
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GPIOPin *reset_pin_{};
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GPIOPin *reset_pin_{NULL_PIN};
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uint8_t chip_id_{};
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bool setup_complete_{};
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};
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@ -62,6 +62,24 @@ class GPIOPin {
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virtual bool is_internal() { return false; }
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};
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/**
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* A pin to replace those that don't exist.
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*/
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class NullPin : public GPIOPin {
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public:
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void setup() override {}
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void pin_mode(gpio::Flags _) override {}
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bool digital_read() override { return false; }
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void digital_write(bool _) override {}
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std::string dump_summary() const override { return {"Not used"}; }
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};
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static GPIOPin *const NULL_PIN = new NullPin();
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/// Copy of GPIOPin that is safe to use from ISRs (with no virtual functions)
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class ISRInternalGPIOPin {
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public:
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