mirror of
https://github.com/Threnklyn/esphome-dev.git
synced 2026-06-01 10:38:27 +02:00
SenexCrenshaw
75 lines
1.9 KiB
C++
75 lines
1.9 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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#include "esphome/components/spi/spi.h"
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namespace esphome {
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namespace mcp23s08 {
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/// Modes for MCP23S08 pins
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enum MCP23S08GPIOMode : uint8_t {
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MCP23S08_INPUT = INPUT, // 0x00
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MCP23S08_INPUT_PULLUP = INPUT_PULLUP, // 0x02
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MCP23S08_OUTPUT = OUTPUT // 0x01
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};
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enum MCP23S08GPIORegisters {
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// A side
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MCP23S08_IODIR = 0x00,
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MCP23S08_IPOL = 0x01,
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MCP23S08_GPINTEN = 0x02,
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MCP23S08_DEFVAL = 0x03,
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MCP23S08_INTCON = 0x04,
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MCP23S08_IOCON = 0x05,
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MCP23S08_GPPU = 0x06,
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MCP23S08_INTF = 0x07,
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MCP23S08_INTCAP = 0x08,
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MCP23S08_GPIO = 0x09,
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MCP23S08_OLAT = 0x0A,
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};
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class MCP23S08 : public Component,
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public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
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spi::DATA_RATE_10MHZ> {
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public:
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MCP23S08() = default;
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void setup() override;
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void dump_config() override;
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bool digital_read(uint8_t pin);
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void digital_write(uint8_t pin, bool value);
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void pin_mode(uint8_t pin, uint8_t mode);
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void set_device_address(uint8_t device_addr);
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float get_setup_priority() const override;
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// read a given register
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bool read_reg(uint8_t reg, uint8_t *value);
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// write a value to a given register
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bool write_reg(uint8_t reg, uint8_t value);
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// update registers with given pin value.
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void update_reg(uint8_t pin, bool pin_value, uint8_t reg_a);
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protected:
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uint8_t device_opcode_ = 0x40;
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uint8_t olat_{0x00};
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};
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class MCP23S08GPIOPin : public GPIOPin {
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public:
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MCP23S08GPIOPin(MCP23S08 *parent, uint8_t pin, uint8_t mode, bool inverted = false);
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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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MCP23S08 *parent_;
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};
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} // namespace mcp23s08
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} // namespace esphome
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