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Code Issues Releases Wiki Activity

[gt911] Add reset pin config (#7373)

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This commit is contained in:
Clyde Stubbs
2024-08-30 06:20:12 +10:00
committed by GitHub
parent acb00c9c59
commit 725e50348b
9 changed files with 56 additions and 125 deletions
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12
esphome/components/gt911/touchscreen/__init__.py
View File

@@ -1,11 +1,10 @@
import esphome.codegen as cg
import esphome.config_validation as cv
from esphome import pins
import esphome.codegen as cg
from esphome.components import i2c, touchscreen
from esphome.const import CONF_INTERRUPT_PIN, CONF_ID
from .. import gt911_ns
import esphome.config_validation as cv
from esphome.const import CONF_ID, CONF_INTERRUPT_PIN, CONF_RESET_PIN
from .. import gt911_ns
GT911ButtonListener = gt911_ns.class_("GT911ButtonListener")
GT911Touchscreen = gt911_ns.class_(
@@ -18,6 +17,7 @@ CONFIG_SCHEMA = touchscreen.TOUCHSCREEN_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(GT911Touchscreen),
cv.Optional(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
cv.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
}
).extend(i2c.i2c_device_schema(0x5D))
@@ -29,3 +29,5 @@ async def to_code(config):
if interrupt_pin := config.get(CONF_INTERRUPT_PIN):
cg.add(var.set_interrupt_pin(await cg.gpio_pin_expression(interrupt_pin)))
if reset_pin := config.get(CONF_RESET_PIN):
cg.add(var.set_reset_pin(await cg.gpio_pin_expression(reset_pin)))

17
esphome/components/gt911/touchscreen/gt911_touchscreen.cpp
View File

@@ -26,6 +26,23 @@ static const size_t MAX_BUTTONS = 4; // max number of buttons scanned
void GT911Touchscreen::setup() {
i2c::ErrorCode err;
ESP_LOGCONFIG(TAG, "Setting up GT911 Touchscreen...");
if (this->reset_pin_ != nullptr) {
this->reset_pin_->setup();
this->reset_pin_->digital_write(false);
if (this->interrupt_pin_ != nullptr) {
// The interrupt pin is used as an input during reset to select the I2C address.
this->interrupt_pin_->pin_mode(gpio::FLAG_OUTPUT);
this->interrupt_pin_->setup();
this->interrupt_pin_->digital_write(false);
}
delay(2);
this->reset_pin_->digital_write(true);
delay(50); // NOLINT
if (this->interrupt_pin_ != nullptr) {
this->interrupt_pin_->pin_mode(gpio::FLAG_INPUT);
this->interrupt_pin_->setup();
}
}
// check the configuration of the int line.
uint8_t data[4];

2
esphome/components/gt911/touchscreen/gt911_touchscreen.h
View File

@@ -19,12 +19,14 @@ class GT911Touchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice
void dump_config() override;
void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
void set_reset_pin(GPIOPin *pin) { this->reset_pin_ = pin; }
void register_button_listener(GT911ButtonListener *listener) { this->button_listeners_.push_back(listener); }
protected:
void update_touches() override;
InternalGPIOPin *interrupt_pin_{};
GPIOPin *reset_pin_{};
std::vector<GT911ButtonListener *> button_listeners_;
uint8_t button_state_{0xFF}; // last button state. Initial FF guarantees first update.
};