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58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
#pragma once
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#include "esphome/components/mcp23xxx_base/mcp23xxx_base.h"
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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 mcp23x17_base {
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enum MCP23X17GPIORegisters {
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// A side
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MCP23X17_IODIRA = 0x00,
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MCP23X17_IPOLA = 0x02,
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MCP23X17_GPINTENA = 0x04,
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MCP23X17_DEFVALA = 0x06,
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MCP23X17_INTCONA = 0x08,
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MCP23X17_IOCONA = 0x0A,
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MCP23X17_GPPUA = 0x0C,
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MCP23X17_INTFA = 0x0E,
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MCP23X17_INTCAPA = 0x10,
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MCP23X17_GPIOA = 0x12,
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MCP23X17_OLATA = 0x14,
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// B side
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MCP23X17_IODIRB = 0x01,
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MCP23X17_IPOLB = 0x03,
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MCP23X17_GPINTENB = 0x05,
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MCP23X17_DEFVALB = 0x07,
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MCP23X17_INTCONB = 0x09,
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MCP23X17_IOCONB = 0x0B,
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MCP23X17_GPPUB = 0x0D,
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MCP23X17_INTFB = 0x0F,
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MCP23X17_INTCAPB = 0x11,
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MCP23X17_GPIOB = 0x13,
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MCP23X17_OLATB = 0x15,
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};
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class MCP23X17Base : public mcp23xxx_base::MCP23XXXBase<16> {
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public:
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bool digital_read_hw(uint8_t pin) override;
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void digital_write_hw(uint8_t pin, bool value) override;
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bool digital_read_cache(uint8_t pin) override;
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void pin_mode(uint8_t pin, gpio::Flags flags) override;
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void pin_interrupt_mode(uint8_t pin, mcp23xxx_base::MCP23XXXInterruptMode interrupt_mode) override;
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protected:
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void update_reg(uint8_t pin, bool pin_value, uint8_t reg_a) override;
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uint8_t olat_a_{0x00};
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uint8_t olat_b_{0x00};
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/// State read in digital_read_hw
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uint16_t input_mask_{0x00};
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};
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} // namespace mcp23x17_base
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} // namespace esphome
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