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Code Issues Releases Wiki Activity

Updating the touchscreen interface structure (#4596)

Browse Source 
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: NP v/d Spek <github_mail@lumensoft.nl>
Co-authored-by: Clyde Stubbs <2366188+clydebarrow@users.noreply.github.com>
Co-authored-by: Gustavo Ambrozio <gustavo@gustavo.eng.br>
This commit is contained in:
NP v/d Spek
2023-12-12 23:56:01 +01:00
committed by GitHub
parent 8e92bb7958
commit c6dc336c4a
35 changed files with 997 additions and 836 deletions
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35
esphome/components/gt911/touchscreen/__init__.py
View File

@@ -3,7 +3,7 @@ import esphome.config_validation as cv
from esphome import pins
from esphome.components import i2c, touchscreen
from esphome.const import CONF_INTERRUPT_PIN, CONF_ID, CONF_ROTATION
from esphome.const import CONF_INTERRUPT_PIN, CONF_ID
from .. import gt911_ns
@@ -11,36 +11,21 @@ GT911ButtonListener = gt911_ns.class_("GT911ButtonListener")
GT911Touchscreen = gt911_ns.class_(
"GT911Touchscreen",
touchscreen.Touchscreen,
cg.Component,
i2c.I2CDevice,
)
ROTATIONS = {
0: touchscreen.TouchRotation.ROTATE_0_DEGREES,
90: touchscreen.TouchRotation.ROTATE_90_DEGREES,
180: touchscreen.TouchRotation.ROTATE_180_DEGREES,
270: touchscreen.TouchRotation.ROTATE_270_DEGREES,
}
CONFIG_SCHEMA = (
touchscreen.TOUCHSCREEN_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(GT911Touchscreen),
cv.Optional(CONF_ROTATION): cv.enum(ROTATIONS),
cv.Required(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
}
)
.extend(i2c.i2c_device_schema(0x5D))
.extend(cv.COMPONENT_SCHEMA)
)
CONFIG_SCHEMA = touchscreen.TOUCHSCREEN_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(GT911Touchscreen),
cv.Optional(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
}
).extend(i2c.i2c_device_schema(0x5D))
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await cg.register_component(var, config)
await i2c.register_i2c_device(var, config)
await touchscreen.register_touchscreen(var, config)
await i2c.register_i2c_device(var, config)
interrupt_pin = await cg.gpio_pin_expression(config[CONF_INTERRUPT_PIN])
cg.add(var.set_interrupt_pin(interrupt_pin))
if CONF_ROTATION in config:
cg.add(var.set_rotation(ROTATIONS[config[CONF_ROTATION]]))
if interrupt_pin := config.get(CONF_INTERRUPT_PIN):
cg.add(var.set_interrupt_pin(await cg.gpio_pin_expression(interrupt_pin)))

75
esphome/components/gt911/touchscreen/gt911_touchscreen.cpp
View File

@@ -12,6 +12,7 @@ static const uint8_t GET_TOUCH_STATE[2] = {0x81, 0x4E};
static const uint8_t CLEAR_TOUCH_STATE[3] = {0x81, 0x4E, 0x00};
static const uint8_t GET_TOUCHES[2] = {0x81, 0x4F};
static const uint8_t GET_SWITCHES[2] = {0x80, 0x4D};
static const uint8_t GET_MAX_VALUES[2] = {0x80, 0x48};
static const size_t MAX_TOUCHES = 5; // max number of possible touches reported
#define ERROR_CHECK(err) \
@@ -21,24 +22,35 @@ static const size_t MAX_TOUCHES = 5; // max number of possible touches reported
return; \
}
void IRAM_ATTR HOT Store::gpio_intr(Store *store) { store->available = true; }
void GT911Touchscreen::setup() {
i2c::ErrorCode err;
ESP_LOGCONFIG(TAG, "Setting up GT911 Touchscreen...");
// datasheet says NOT to use pullup/down on the int line.
this->interrupt_pin_->pin_mode(gpio::FLAG_INPUT);
this->interrupt_pin_->setup();
// check the configuration of the int line.
uint8_t data;
uint8_t data[4];
err = this->write(GET_SWITCHES, 2);
if (err == i2c::ERROR_OK) {
err = this->read(&data, 1);
err = this->read(data, 1);
if (err == i2c::ERROR_OK) {
ESP_LOGD(TAG, "Read from switches: 0x%02X", data);
this->interrupt_pin_->attach_interrupt(Store::gpio_intr, &this->store_,
(data & 1) ? gpio::INTERRUPT_FALLING_EDGE : gpio::INTERRUPT_RISING_EDGE);
ESP_LOGD(TAG, "Read from switches: 0x%02X", data[0]);
if (this->interrupt_pin_ != nullptr) {
// datasheet says NOT to use pullup/down on the int line.
this->interrupt_pin_->pin_mode(gpio::FLAG_INPUT);
this->interrupt_pin_->setup();
this->attach_interrupt_(this->interrupt_pin_,
(data[0] & 1) ? gpio::INTERRUPT_FALLING_EDGE : gpio::INTERRUPT_RISING_EDGE);
}
}
}
if (err == i2c::ERROR_OK) {
err = this->write(GET_MAX_VALUES, 2);
if (err == i2c::ERROR_OK) {
err = this->read(data, sizeof(data));
if (err == i2c::ERROR_OK) {
this->x_raw_max_ = encode_uint16(data[1], data[0]);
this->y_raw_max_ = encode_uint16(data[3], data[2]);
esph_log_d(TAG, "Read max_x/max_y %d/%d", this->x_raw_max_, this->y_raw_max_);
}
}
}
if (err != i2c::ERROR_OK) {
@@ -46,31 +58,28 @@ void GT911Touchscreen::setup() {
this->mark_failed();
return;
}
ESP_LOGCONFIG(TAG, "GT911 Touchscreen setup complete");
}
void GT911Touchscreen::loop() {
void GT911Touchscreen::update_touches() {
i2c::ErrorCode err;
touchscreen::TouchPoint tp;
uint8_t touch_state = 0;
uint8_t data[MAX_TOUCHES + 1][8]; // 8 bytes each for each point, plus extra space for the key byte
if (!this->store_.available)
return;
this->store_.available = false;
err = this->write(GET_TOUCH_STATE, sizeof(GET_TOUCH_STATE), false);
ERROR_CHECK(err);
err = this->read(&touch_state, 1);
ERROR_CHECK(err);
this->write(CLEAR_TOUCH_STATE, sizeof(CLEAR_TOUCH_STATE));
if ((touch_state & 0x80) == 0)
return;
uint8_t num_of_touches = touch_state & 0x07;
if ((touch_state & 0x80) == 0 || num_of_touches > MAX_TOUCHES) {
this->skip_update_ = true; // skip send touch events, touchscreen is not ready yet.
return;
}
if (num_of_touches == 0)
this->send_release_();
if (num_of_touches > MAX_TOUCHES) // should never happen
return;
err = this->write(GET_TOUCHES, sizeof(GET_TOUCHES), false);
@@ -80,29 +89,10 @@ void GT911Touchscreen::loop() {
ERROR_CHECK(err);
for (uint8_t i = 0; i != num_of_touches; i++) {
tp.id = data[i][0];
uint16_t id = data[i][0];
uint16_t x = encode_uint16(data[i][2], data[i][1]);
uint16_t y = encode_uint16(data[i][4], data[i][3]);
switch (this->rotation_) {
case touchscreen::ROTATE_0_DEGREES:
tp.x = x;
tp.y = y;
break;
case touchscreen::ROTATE_90_DEGREES:
tp.x = y;
tp.y = this->display_width_ - x;
break;
case touchscreen::ROTATE_180_DEGREES:
tp.x = this->display_width_ - x;
tp.y = this->display_height_ - y;
break;
case touchscreen::ROTATE_270_DEGREES:
tp.x = this->display_height_ - y;
tp.y = x;
break;
}
this->defer([this, tp]() { this->send_touch_(tp); });
this->set_raw_touch_position_(id, x, y);
}
auto keys = data[num_of_touches][0];
for (size_t i = 0; i != 4; i++) {
@@ -115,7 +105,6 @@ void GT911Touchscreen::dump_config() {
ESP_LOGCONFIG(TAG, "GT911 Touchscreen:");
LOG_I2C_DEVICE(this);
LOG_PIN(" Interrupt Pin: ", this->interrupt_pin_);
ESP_LOGCONFIG(TAG, " Rotation: %d", (int) this->rotation_);
}
} // namespace gt911

15
esphome/components/gt911/touchscreen/gt911_touchscreen.h
View File

@@ -8,30 +8,23 @@
namespace esphome {
namespace gt911 {
struct Store {
volatile bool available;
static void gpio_intr(Store *store);
};
class GT911ButtonListener {
public:
virtual void update_button(uint8_t index, bool state) = 0;
};
class GT911Touchscreen : public touchscreen::Touchscreen, public Component, public i2c::I2CDevice {
class GT911Touchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice {
public:
void setup() override;
void loop() override;
void dump_config() override;
void set_rotation(touchscreen::TouchRotation rotation) { this->rotation_ = rotation; }
void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
void register_button_listener(GT911ButtonListener *listener) { this->button_listeners_.push_back(listener); }
protected:
InternalGPIOPin *interrupt_pin_;
Store store_;
void update_touches() override;
InternalGPIOPin *interrupt_pin_{};
std::vector<GT911ButtonListener *> button_listeners_;
};