esphome/esphome/components/ssd1306_i2c/ssd1306_i2c.cpp
Otto Winter 6682c43dfa
🏗 Merge C++ into python codebase (#504)
## 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).
2019-04-17 12:06:00 +02:00

61 lines
1.7 KiB
C++

#include "ssd1306_i2c.h"
#include "esphome/core/log.h"
namespace esphome {
namespace ssd1306_i2c {
static const char *TAG = "ssd1306_i2c";
void I2CSSD1306::setup() {
ESP_LOGCONFIG(TAG, "Setting up I2C SSD1306...");
this->init_reset_();
this->parent_->raw_begin_transmission(this->address_);
if (!this->parent_->raw_end_transmission(this->address_)) {
this->error_code_ = COMMUNICATION_FAILED;
this->mark_failed();
return;
}
SSD1306::setup();
}
void I2CSSD1306::dump_config() {
LOG_DISPLAY("", "I2C SSD1306", this);
LOG_I2C_DEVICE(this);
ESP_LOGCONFIG(TAG, " Model: %s", this->model_str_());
LOG_PIN(" Reset Pin: ", this->reset_pin_);
ESP_LOGCONFIG(TAG, " External VCC: %s", YESNO(this->external_vcc_));
LOG_UPDATE_INTERVAL(this);
if (this->error_code_ == COMMUNICATION_FAILED) {
ESP_LOGE(TAG, "Communication with SSD1306 failed!");
}
}
void I2CSSD1306::command(uint8_t value) { this->write_byte(0x00, value); }
void HOT I2CSSD1306::write_display_data() {
if (this->is_sh1106_()) {
uint32_t i = 0;
for (uint8_t page = 0; page < this->get_height_internal() / 8; page++) {
this->command(0xB0 + page); // row
this->command(0x02); // lower column
this->command(0x10); // higher column
for (uint8_t x = 0; x < this->get_width_internal() / 16; x++) {
uint8_t data[16];
for (uint8_t &j : data)
j = this->buffer_[i++];
this->write_bytes(0x40, data, sizeof(data));
}
}
} else {
for (uint32_t i = 0; i < this->get_buffer_length_();) {
uint8_t data[16];
for (uint8_t &j : data)
j = this->buffer_[i++];
this->write_bytes(0x40, data, sizeof(data));
}
}
}
} // namespace ssd1306_i2c
} // namespace esphome