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570ec36fe3
* Refactor MCP23XXX classes to consolidate shared code * Update test mcp23xxx pin schemas
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/esphal.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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/// Modes for MCP23XXX pins
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enum MCP23XXXGPIOMode : uint8_t {
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MCP23XXX_INPUT = INPUT, // 0x00
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MCP23XXX_INPUT_PULLUP = INPUT_PULLUP, // 0x02
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MCP23XXX_OUTPUT = OUTPUT // 0x01
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};
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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, uint8_t mode);
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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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MCP23XXXGPIOPin(MCP23XXXBase *parent, uint8_t pin, uint8_t mode, bool inverted = false,
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MCP23XXXInterruptMode interrupt_mode = MCP23XXX_NO_INTERRUPT);
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void setup() override;
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void pin_mode(uint8_t mode) override;
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bool digital_read() override;
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void digital_write(bool value) override;
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protected:
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MCP23XXXBase *parent_;
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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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