mirror of
https://github.com/esphome/esphome.git
synced 2025-10-04 19:03:47 +01:00
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
#include "ssd1306_i2c.h"
|
|
#include "esphome/core/log.h"
|
|
|
|
namespace esphome {
|
|
namespace ssd1306_i2c {
|
|
|
|
static const char *const TAG = "ssd1306_i2c";
|
|
|
|
void I2CSSD1306::setup() {
|
|
ESP_LOGCONFIG(TAG, "Running setup");
|
|
this->init_reset_();
|
|
|
|
auto err = this->write(nullptr, 0);
|
|
if (err != i2c::ERROR_OK) {
|
|
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\n"
|
|
" Flip X: %s\n"
|
|
" Flip Y: %s\n"
|
|
" Offset X: %d\n"
|
|
" Offset Y: %d\n"
|
|
" Inverted Color: %s",
|
|
YESNO(this->external_vcc_), YESNO(this->flip_x_), YESNO(this->flip_y_), this->offset_x_,
|
|
this->offset_y_, YESNO(this->invert_));
|
|
LOG_UPDATE_INTERVAL(this);
|
|
|
|
if (this->error_code_ == COMMUNICATION_FAILED) {
|
|
ESP_LOGE(TAG, ESP_LOG_MSG_COMM_FAIL);
|
|
}
|
|
}
|
|
void I2CSSD1306::command(uint8_t value) { this->write_byte(0x00, value); }
|
|
void HOT I2CSSD1306::write_display_data() {
|
|
if (this->is_sh1106_() || this->is_sh1107_()) {
|
|
uint32_t i = 0;
|
|
for (uint8_t page = 0; page < (uint8_t) this->get_height_internal() / 8; page++) {
|
|
this->command(0xB0 + page); // row
|
|
if (this->is_sh1106_()) {
|
|
this->command(0x02); // lower column - 0x02 is historical SH1106 value
|
|
} else {
|
|
// Other SH1107 drivers use 0x00
|
|
// Column values dont change and it seems they can be set only once,
|
|
// but we follow SH1106 implementation and resend them
|
|
this->command(0x00);
|
|
}
|
|
this->command(0x10); // higher column
|
|
for (uint8_t x = 0; x < (uint8_t) 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 {
|
|
size_t block_size = 16;
|
|
if ((this->get_buffer_length_() & 8) == 8) {
|
|
// use smaller block size for e.g. 72x40 displays where buffer size is multiple of 8, not 16
|
|
block_size = 8;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < this->get_buffer_length_();) {
|
|
uint8_t data[block_size];
|
|
for (uint8_t &j : data)
|
|
j = this->buffer_[i++];
|
|
this->write_bytes(0x40, data, sizeof(data));
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace ssd1306_i2c
|
|
} // namespace esphome
|