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6682c43dfa
## Description: Move esphome-core codebase into esphome (and a bunch of other refactors). See https://github.com/esphome/feature-requests/issues/97 Yes this is a shit ton of work and no there's no way to automate it :( But it will be worth it 👍 Progress: - Core support (file copy etc): 80% - Base Abstractions (light, switch): ~50% - Integrations: ~10% - Working? Yes, (but only with ported components). Other refactors: - Moves all codegen related stuff into a single class: `esphome.codegen` (imported as `cg`) - Rework coroutine syntax - Move from `component/platform.py` to `domain/component.py` structure as with HA - Move all defaults out of C++ and into config validation. - Remove `make_...` helpers from Application class. Reason: Merge conflicts with every single new integration. - Pointer Variables are stored globally instead of locally in setup(). Reason: stack size limit. Future work: - Rework const.py - Move all `CONF_...` into a conf class (usage `conf.UPDATE_INTERVAL` vs `CONF_UPDATE_INTERVAL`). Reason: Less convoluted import block - Enable loading from `custom_components` folder. **Related issue (if applicable):** https://github.com/esphome/feature-requests/issues/97 **Pull request in [esphome-docs](https://github.com/esphome/esphome-docs) with documentation (if applicable):** esphome/esphome-docs#<esphome-docs PR number goes here> ## Checklist: - [ ] The code change is tested and works locally. - [ ] Tests have been added to verify that the new code works (under `tests/` folder). If user exposed functionality or configuration variables are added/changed: - [ ] Documentation added/updated in [esphomedocs](https://github.com/OttoWinter/esphomedocs).
97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
#include "mcp23017.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace mcp23017 {
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static const char *TAG = "mcp23017";
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void MCP23017::setup() {
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ESP_LOGCONFIG(TAG, "Setting up MCP23017...");
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uint8_t iocon;
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if (!this->read_reg_(MCP23017_IOCONA, &iocon)) {
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this->mark_failed();
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return;
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}
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// all pins input
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this->write_reg_(MCP23017_IODIRA, 0xFF);
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this->write_reg_(MCP23017_IODIRB, 0xFF);
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}
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bool MCP23017::digital_read(uint8_t pin) {
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uint8_t bit = pin % 8;
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uint8_t reg_addr = pin < 8 ? MCP23017_GPIOA : MCP23017_GPIOB;
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uint8_t value = 0;
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this->read_reg_(reg_addr, &value);
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return value & (1 << bit);
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}
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void MCP23017::digital_write(uint8_t pin, bool value) {
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uint8_t reg_addr = pin < 8 ? MCP23017_OLATA : MCP23017_OLATB;
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this->update_reg_(pin, value, reg_addr);
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}
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void MCP23017::pin_mode(uint8_t pin, uint8_t mode) {
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uint8_t iodir = pin < 8 ? MCP23017_IODIRA : MCP23017_IODIRB;
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uint8_t gppu = pin < 8 ? MCP23017_GPPUA : MCP23017_GPPUB;
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switch (mode) {
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case MCP23017_INPUT:
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this->update_reg_(pin, true, iodir);
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break;
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case MCP23017_INPUT_PULLUP:
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this->update_reg_(pin, true, iodir);
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this->update_reg_(pin, true, gppu);
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break;
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case MCP23017_OUTPUT:
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this->update_reg_(pin, false, iodir);
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break;
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default:
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break;
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}
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}
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float MCP23017::get_setup_priority() const { return setup_priority::HARDWARE; }
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bool MCP23017::read_reg_(uint8_t reg, uint8_t *value) {
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if (this->is_failed())
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return false;
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return this->read_byte(reg, value);
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}
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bool MCP23017::write_reg_(uint8_t reg, uint8_t value) {
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if (this->is_failed())
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return false;
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return this->write_byte(reg, value);
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}
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void MCP23017::update_reg_(uint8_t pin, bool pin_value, uint8_t reg_addr) {
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uint8_t bit = pin % 8;
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uint8_t reg_value = 0;
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if (reg_addr == MCP23017_OLATA) {
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reg_value = this->olat_a_;
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} else if (reg_addr == MCP23017_OLATB) {
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reg_value = this->olat_b_;
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} else {
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this->read_reg_(reg_addr, ®_value);
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}
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if (pin_value)
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reg_value |= 1 << bit;
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else
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reg_value &= ~(1 << bit);
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this->write_reg_(reg_addr, reg_value);
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if (reg_addr == MCP23017_OLATA) {
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this->olat_a_ = reg_value;
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} else if (reg_addr == MCP23017_OLATB) {
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this->olat_b_ = reg_value;
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}
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}
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MCP23017GPIOPin::MCP23017GPIOPin(MCP23017 *parent, uint8_t pin, uint8_t mode, bool inverted)
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: GPIOPin(pin, mode, inverted), parent_(parent) {}
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void MCP23017GPIOPin::setup() { this->pin_mode(this->mode_); }
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void MCP23017GPIOPin::pin_mode(uint8_t mode) { this->parent_->pin_mode(this->pin_, mode); }
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bool MCP23017GPIOPin::digital_read() { return this->parent_->digital_read(this->pin_) != this->inverted_; }
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void MCP23017GPIOPin::digital_write(bool value) { this->parent_->digital_write(this->pin_, value != this->inverted_); }
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} // namespace mcp23017
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} // namespace esphome
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