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https://github.com/esphome/esphome.git
synced 2024-11-21 22:48:10 +01:00
Create GT911 Touchscreen component (#4027)
Co-authored-by: clydebarrow <2366188+clydebarrow@users.noreply.github.com>
This commit is contained in:
parent
a15a812466
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11 changed files with 314 additions and 0 deletions
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@ -119,6 +119,7 @@ esphome/components/graph/* @synco
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esphome/components/gree/* @orestismers
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esphome/components/grove_tb6612fng/* @max246
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esphome/components/growatt_solar/* @leeuwte
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esphome/components/gt911/* @clydebarrow @jesserockz
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esphome/components/haier/* @paveldn
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esphome/components/havells_solar/* @sourabhjaiswal
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esphome/components/hbridge/fan/* @WeekendWarrior
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6
esphome/components/gt911/__init__.py
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6
esphome/components/gt911/__init__.py
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@ -0,0 +1,6 @@
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import esphome.codegen as cg
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CODEOWNERS = ["@jesserockz", "@clydebarrow"]
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DEPENDENCIES = ["i2c"]
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gt911_ns = cg.esphome_ns.namespace("gt911")
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31
esphome/components/gt911/binary_sensor/__init__.py
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31
esphome/components/gt911/binary_sensor/__init__.py
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import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome.components import binary_sensor
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from esphome.const import CONF_INDEX
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from .. import gt911_ns
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from ..touchscreen import GT911Touchscreen, GT911ButtonListener
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CONF_GT911_ID = "gt911_id"
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GT911Button = gt911_ns.class_(
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"GT911Button",
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binary_sensor.BinarySensor,
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cg.Component,
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GT911ButtonListener,
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cg.Parented.template(GT911Touchscreen),
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)
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CONFIG_SCHEMA = binary_sensor.binary_sensor_schema(GT911Button).extend(
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{
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cv.GenerateID(CONF_GT911_ID): cv.use_id(GT911Touchscreen),
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cv.Optional(CONF_INDEX, default=0): cv.int_range(min=0, max=3),
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}
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)
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async def to_code(config):
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var = await binary_sensor.new_binary_sensor(config)
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await cg.register_component(var, config)
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await cg.register_parented(var, config[CONF_GT911_ID])
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cg.add(var.set_index(config[CONF_INDEX]))
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27
esphome/components/gt911/binary_sensor/gt911_button.cpp
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27
esphome/components/gt911/binary_sensor/gt911_button.cpp
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@ -0,0 +1,27 @@
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#include "gt911_button.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace gt911 {
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static const char *const TAG = "GT911.binary_sensor";
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void GT911Button::setup() {
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this->parent_->register_button_listener(this);
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this->publish_initial_state(false);
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}
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void GT911Button::dump_config() {
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LOG_BINARY_SENSOR("", "GT911 Button", this);
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ESP_LOGCONFIG(TAG, " Index: %u", this->index_);
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}
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void GT911Button::update_button(uint8_t index, bool state) {
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if (index != this->index_)
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return;
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this->publish_state(state);
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}
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} // namespace gt911
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} // namespace esphome
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28
esphome/components/gt911/binary_sensor/gt911_button.h
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28
esphome/components/gt911/binary_sensor/gt911_button.h
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#pragma once
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#include "esphome/components/binary_sensor/binary_sensor.h"
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#include "esphome/components/gt911/touchscreen/gt911_touchscreen.h"
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#include "esphome/core/component.h"
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#include "esphome/core/helpers.h"
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namespace esphome {
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namespace gt911 {
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class GT911Button : public binary_sensor::BinarySensor,
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public Component,
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public GT911ButtonListener,
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public Parented<GT911Touchscreen> {
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public:
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void setup() override;
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void dump_config() override;
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void set_index(uint8_t index) { this->index_ = index; }
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void update_button(uint8_t index, bool state) override;
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protected:
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uint8_t index_;
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};
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} // namespace gt911
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} // namespace esphome
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46
esphome/components/gt911/touchscreen/__init__.py
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46
esphome/components/gt911/touchscreen/__init__.py
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import esphome.codegen as cg
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import esphome.config_validation as cv
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from esphome import pins
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from esphome.components import i2c, touchscreen
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from esphome.const import CONF_INTERRUPT_PIN, CONF_ID, CONF_ROTATION
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from .. import gt911_ns
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GT911ButtonListener = gt911_ns.class_("GT911ButtonListener")
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GT911Touchscreen = gt911_ns.class_(
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"GT911Touchscreen",
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touchscreen.Touchscreen,
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cg.Component,
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i2c.I2CDevice,
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)
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ROTATIONS = {
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0: touchscreen.TouchRotation.ROTATE_0_DEGREES,
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90: touchscreen.TouchRotation.ROTATE_90_DEGREES,
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180: touchscreen.TouchRotation.ROTATE_180_DEGREES,
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270: touchscreen.TouchRotation.ROTATE_270_DEGREES,
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}
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CONFIG_SCHEMA = (
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touchscreen.TOUCHSCREEN_SCHEMA.extend(
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{
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cv.GenerateID(): cv.declare_id(GT911Touchscreen),
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cv.Optional(CONF_ROTATION): cv.enum(ROTATIONS),
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cv.Required(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
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}
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)
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.extend(i2c.i2c_device_schema(0x5D))
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.extend(cv.COMPONENT_SCHEMA)
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)
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async def to_code(config):
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var = cg.new_Pvariable(config[CONF_ID])
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await cg.register_component(var, config)
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await i2c.register_i2c_device(var, config)
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await touchscreen.register_touchscreen(var, config)
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interrupt_pin = await cg.gpio_pin_expression(config[CONF_INTERRUPT_PIN])
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cg.add(var.set_interrupt_pin(interrupt_pin))
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if CONF_ROTATION in config:
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cg.add(var.set_rotation(ROTATIONS[config[CONF_ROTATION]]))
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122
esphome/components/gt911/touchscreen/gt911_touchscreen.cpp
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122
esphome/components/gt911/touchscreen/gt911_touchscreen.cpp
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#include "gt911_touchscreen.h"
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#include "esphome/core/helpers.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace gt911 {
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static const char *const TAG = "gt911.touchscreen";
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static const uint8_t GET_TOUCH_STATE[2] = {0x81, 0x4E};
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static const uint8_t CLEAR_TOUCH_STATE[3] = {0x81, 0x4E, 0x00};
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static const uint8_t GET_TOUCHES[2] = {0x81, 0x4F};
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static const uint8_t GET_SWITCHES[2] = {0x80, 0x4D};
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static const size_t MAX_TOUCHES = 5; // max number of possible touches reported
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#define ERROR_CHECK(err) \
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if ((err) != i2c::ERROR_OK) { \
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ESP_LOGE(TAG, "Failed to communicate!"); \
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this->status_set_warning(); \
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return; \
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}
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void IRAM_ATTR HOT Store::gpio_intr(Store *store) { store->available = true; }
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void GT911Touchscreen::setup() {
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i2c::ErrorCode err;
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ESP_LOGCONFIG(TAG, "Setting up GT911 Touchscreen...");
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// datasheet says NOT to use pullup/down on the int line.
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this->interrupt_pin_->pin_mode(gpio::FLAG_INPUT);
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this->interrupt_pin_->setup();
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// check the configuration of the int line.
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uint8_t data;
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err = this->write(GET_SWITCHES, 2);
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if (err == i2c::ERROR_OK) {
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err = this->read(&data, 1);
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if (err == i2c::ERROR_OK) {
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ESP_LOGD(TAG, "Read from switches: 0x%02X", data);
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this->interrupt_pin_->attach_interrupt(Store::gpio_intr, &this->store_,
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(data & 1) ? gpio::INTERRUPT_FALLING_EDGE : gpio::INTERRUPT_RISING_EDGE);
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}
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}
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if (err != i2c::ERROR_OK) {
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ESP_LOGE(TAG, "Failed to communicate!");
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this->mark_failed();
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return;
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}
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ESP_LOGCONFIG(TAG, "GT911 Touchscreen setup complete");
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}
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void GT911Touchscreen::loop() {
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i2c::ErrorCode err;
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touchscreen::TouchPoint tp;
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uint8_t touch_state = 0;
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uint8_t data[MAX_TOUCHES + 1][8]; // 8 bytes each for each point, plus extra space for the key byte
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if (!this->store_.available)
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return;
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this->store_.available = false;
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err = this->write(GET_TOUCH_STATE, sizeof(GET_TOUCH_STATE), false);
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ERROR_CHECK(err);
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err = this->read(&touch_state, 1);
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ERROR_CHECK(err);
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this->write(CLEAR_TOUCH_STATE, sizeof(CLEAR_TOUCH_STATE));
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if ((touch_state & 0x80) == 0)
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return;
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uint8_t num_of_touches = touch_state & 0x07;
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if (num_of_touches == 0)
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this->send_release_();
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if (num_of_touches > MAX_TOUCHES) // should never happen
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return;
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err = this->write(GET_TOUCHES, sizeof(GET_TOUCHES), false);
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ERROR_CHECK(err);
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// num_of_touches is guaranteed to be 0..5. Also read the key data
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err = this->read(data[0], sizeof(data[0]) * num_of_touches + 1);
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ERROR_CHECK(err);
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for (uint8_t i = 0; i != num_of_touches; i++) {
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tp.id = data[i][0];
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uint16_t x = encode_uint16(data[i][2], data[i][1]);
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uint16_t y = encode_uint16(data[i][4], data[i][3]);
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switch (this->rotation_) {
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case touchscreen::ROTATE_0_DEGREES:
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tp.x = x;
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tp.y = y;
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break;
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case touchscreen::ROTATE_90_DEGREES:
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tp.x = y;
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tp.y = this->display_width_ - x;
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break;
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case touchscreen::ROTATE_180_DEGREES:
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tp.x = this->display_width_ - x;
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tp.y = this->display_height_ - y;
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break;
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case touchscreen::ROTATE_270_DEGREES:
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tp.x = this->display_height_ - y;
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tp.y = x;
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break;
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}
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this->defer([this, tp]() { this->send_touch_(tp); });
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}
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auto keys = data[num_of_touches][0];
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for (size_t i = 0; i != 4; i++) {
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for (auto *listener : this->button_listeners_)
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listener->update_button(i, (keys & (1 << i)) != 0);
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}
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}
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void GT911Touchscreen::dump_config() {
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ESP_LOGCONFIG(TAG, "GT911 Touchscreen:");
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LOG_I2C_DEVICE(this);
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LOG_PIN(" Interrupt Pin: ", this->interrupt_pin_);
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ESP_LOGCONFIG(TAG, " Rotation: %d", (int) this->rotation_);
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}
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} // namespace gt911
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} // namespace esphome
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39
esphome/components/gt911/touchscreen/gt911_touchscreen.h
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39
esphome/components/gt911/touchscreen/gt911_touchscreen.h
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#pragma once
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#include "esphome/components/i2c/i2c.h"
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#include "esphome/components/touchscreen/touchscreen.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 gt911 {
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struct Store {
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volatile bool available;
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static void gpio_intr(Store *store);
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};
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class GT911ButtonListener {
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public:
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virtual void update_button(uint8_t index, bool state) = 0;
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};
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class GT911Touchscreen : public touchscreen::Touchscreen, public Component, public i2c::I2CDevice {
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public:
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void setup() override;
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void loop() override;
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void dump_config() override;
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void set_rotation(touchscreen::TouchRotation rotation) { this->rotation_ = rotation; }
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void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
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void register_button_listener(GT911ButtonListener *listener) { this->button_listeners_.push_back(listener); }
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protected:
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InternalGPIOPin *interrupt_pin_;
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Store store_;
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std::vector<GT911ButtonListener *> button_listeners_;
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};
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} // namespace gt911
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} // namespace esphome
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@ -18,6 +18,11 @@ void Touchscreen::set_display(display::Display *display) {
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}
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}
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void Touchscreen::send_release_() {
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for (auto *listener : this->touch_listeners_)
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listener->release();
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}
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void Touchscreen::send_touch_(TouchPoint tp) {
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ESP_LOGV(TAG, "Touch (x=%d, y=%d)", tp.x, tp.y);
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this->touch_trigger_.trigger(tp);
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@ -41,6 +41,7 @@ class Touchscreen {
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protected:
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/// Call this function to send touch points to the `on_touch` listener and the binary_sensors.
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void send_touch_(TouchPoint tp);
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void send_release_();
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uint16_t display_width_;
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uint16_t display_height_;
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@ -405,6 +405,10 @@ binary_sensor:
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y_max: 100
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on_press:
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- logger.log: Touched
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- platform: gt911
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id: touch_key_911
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index: 0
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- platform: gpio
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name: MaxIn Pin 4
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- logger.log:
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format: Touch at (%d, %d)
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args: [touch.x, touch.y]
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- platform: gt911
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interrupt_pin: GPIO3
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display: inkplate_display
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i2s_audio:
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i2s_lrclk_pin: GPIO26
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Reference in a new issue