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[cst816] Allow skipping i2c probe (#7557)

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Clyde Stubbs 2024-10-09 12:41:58 +11:00 committed by GitHub
parent 9211aad524
commit 1a567b6986
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GPG Key ID: B5690EEEBB952194
4 changed files with 33 additions and 26 deletions
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13
esphome/components/cst816/touchscreen/__init__.py
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@ -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, CONF_RESET_PIN
from .. import cst816_ns
import esphome.config_validation as cv
from esphome.const import CONF_ID, CONF_INTERRUPT_PIN, CONF_RESET_PIN
from .. import cst816_ns
CST816Touchscreen = cst816_ns.class_(
"CST816Touchscreen",
@ -14,11 +13,14 @@ CST816Touchscreen = cst816_ns.class_(
)
CST816ButtonListener = cst816_ns.class_("CST816ButtonListener")
CONF_SKIP_PROBE = "skip_probe"
CONFIG_SCHEMA = touchscreen.TOUCHSCREEN_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(CST816Touchscreen),
cv.Optional(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
cv.Optional(CONF_RESET_PIN): pins.gpio_output_pin_schema,
cv.Optional(CONF_SKIP_PROBE, default=False): cv.boolean,
}
).extend(i2c.i2c_device_schema(0x15))
@ -28,6 +30,7 @@ async def to_code(config):
await touchscreen.register_touchscreen(var, config)
await i2c.register_i2c_device(var, config)
cg.add(var.set_skip_probe(config[CONF_SKIP_PROBE]))
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):

19
esphome/components/cst816/touchscreen/cst816_touchscreen.cpp
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@ -8,11 +8,7 @@ void CST816Touchscreen::continue_setup_() {
this->interrupt_pin_->setup();
this->attach_interrupt_(this->interrupt_pin_, gpio::INTERRUPT_FALLING_EDGE);
}
if (!this->read_byte(REG_CHIP_ID, &this->chip_id_)) {
this->mark_failed();
esph_log_e(TAG, "Failed to read chip id");
return;
}
if (this->read_byte(REG_CHIP_ID, &this->chip_id_)) {
switch (this->chip_id_) {
case CST820_CHIP_ID:
case CST826_CHIP_ID:
@ -23,17 +19,22 @@ void CST816Touchscreen::continue_setup_() {
break;
default:
this->mark_failed();
esph_log_e(TAG, "Unknown chip ID 0x%02X", this->chip_id_);
this->status_set_error(str_sprintf("Unknown chip ID 0x%02X", this->chip_id_).c_str());
return;
}
this->write_byte(REG_IRQ_CTL, IRQ_EN_MOTION);
} else if (!this->skip_probe_) {
this->status_set_error("Failed to read chip id");
this->mark_failed();
return;
}
if (this->x_raw_max_ == this->x_raw_min_) {
this->x_raw_max_ = this->display_->get_native_width();
}
if (this->y_raw_max_ == this->y_raw_min_) {
this->y_raw_max_ = this->display_->get_native_height();
}
esph_log_config(TAG, "CST816 Touchscreen setup complete");
ESP_LOGCONFIG(TAG, "CST816 Touchscreen setup complete");
}
void CST816Touchscreen::update_button_state_(bool state) {
@ -45,7 +46,7 @@ void CST816Touchscreen::update_button_state_(bool state) {
}
void CST816Touchscreen::setup() {
esph_log_config(TAG, "Setting up CST816 Touchscreen...");
ESP_LOGCONFIG(TAG, "Setting up CST816 Touchscreen...");
if (this->reset_pin_ != nullptr) {
this->reset_pin_->setup();
this->reset_pin_->digital_write(true);
@ -73,7 +74,7 @@ void CST816Touchscreen::update_touches() {
uint16_t x = encode_uint16(data[REG_XPOS_HIGH] & 0xF, data[REG_XPOS_LOW]);
uint16_t y = encode_uint16(data[REG_YPOS_HIGH] & 0xF, data[REG_YPOS_LOW]);
esph_log_v(TAG, "Read touch %d/%d", x, y);
ESP_LOGV(TAG, "Read touch %d/%d", x, y);
if (x >= this->x_raw_max_) {
this->update_button_state_(true);
} else {

2
esphome/components/cst816/touchscreen/cst816_touchscreen.h
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@ -45,6 +45,7 @@ class CST816Touchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice
void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
void set_reset_pin(GPIOPin *pin) { this->reset_pin_ = pin; }
void set_skip_probe(bool skip_probe) { this->skip_probe_ = skip_probe; }
protected:
void continue_setup_();
@ -53,6 +54,7 @@ class CST816Touchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice
InternalGPIOPin *interrupt_pin_{};
GPIOPin *reset_pin_{};
uint8_t chip_id_{};
bool skip_probe_{}; // if set, do not expect to be able to probe the controller on the i2c bus.
std::vector<CST816ButtonListener *> button_listeners_;
bool button_touched_{};
};

5
tests/components/cst816/common.yaml
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@ -4,6 +4,7 @@ touchscreen:
interrupt_pin:
number: 21
reset_pin: GPIO16
skip_probe: false
transform:
mirror_x: false
mirror_y: false
@ -11,14 +12,14 @@ touchscreen:
i2c:
sda: 3
scl: 2
scl: 4
display:
- id: my_display
platform: ili9xxx
dimensions: 480x320
model: ST7796
cs_pin: 15
cs_pin: 18
dc_pin: 20
reset_pin: 22
transform: