57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/hal.h"
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namespace esphome {
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namespace mcp23xxx_base {
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enum MCP23XXXInterruptMode : uint8_t { MCP23XXX_NO_INTERRUPT = 0, MCP23XXX_CHANGE, MCP23XXX_RISING, MCP23XXX_FALLING };
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class MCP23XXXBase : public Component {
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public:
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virtual bool digital_read(uint8_t pin);
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virtual void digital_write(uint8_t pin, bool value);
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virtual void pin_mode(uint8_t pin, gpio::Flags flags);
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virtual void pin_interrupt_mode(uint8_t pin, MCP23XXXInterruptMode interrupt_mode);
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void set_open_drain_ints(const bool value) { this->open_drain_ints_ = value; }
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float get_setup_priority() const override;
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protected:
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// read a given register
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virtual bool read_reg(uint8_t reg, uint8_t *value);
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// write a value to a given register
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virtual bool write_reg(uint8_t reg, uint8_t value);
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// update registers with given pin value.
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virtual void update_reg(uint8_t pin, bool pin_value, uint8_t reg_a);
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bool open_drain_ints_;
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};
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class MCP23XXXGPIOPin : public GPIOPin {
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public:
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void setup() override;
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void pin_mode(gpio::Flags flags) override;
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bool digital_read() override;
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void digital_write(bool value) override;
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std::string dump_summary() const override;
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void set_parent(MCP23XXXBase *parent) { parent_ = parent; }
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void set_pin(uint8_t pin) { pin_ = pin; }
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void set_inverted(bool inverted) { inverted_ = inverted; }
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void set_flags(gpio::Flags flags) { flags_ = flags; }
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void set_interrupt_mode(MCP23XXXInterruptMode interrupt_mode) { interrupt_mode_ = interrupt_mode; }
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gpio::Flags get_flags() const override { return this->flags_; }
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protected:
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MCP23XXXBase *parent_;
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uint8_t pin_;
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bool inverted_;
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gpio::Flags flags_;
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MCP23XXXInterruptMode interrupt_mode_;
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};
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} // namespace mcp23xxx_base
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} // namespace esphome
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