[axs15231] Touchscreen driver (#7592)

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Clyde Stubbs 2024-10-17 11:44:20 +11:00 committed by GitHub
parent 56fa6fef85
commit 5ad68e926d
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12 changed files with 178 additions and 0 deletions

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@ -50,6 +50,7 @@ esphome/components/atm90e26/* @danieltwagner
esphome/components/atm90e32/* @circuitsetup @descipher
esphome/components/audio/* @kahrendt
esphome/components/audio_dac/* @kbx81
esphome/components/axs15231/* @clydebarrow
esphome/components/b_parasite/* @rbaron
esphome/components/ballu/* @bazuchan
esphome/components/bang_bang/* @OttoWinter

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import esphome.codegen as cg
CODEOWNERS = ["@clydebarrow"]
DEPENDENCIES = ["i2c"]
axs15231_ns = cg.esphome_ns.namespace("axs15231")

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from esphome import pins
import esphome.codegen as cg
from esphome.components import i2c, touchscreen
import esphome.config_validation as cv
from esphome.const import CONF_ID, CONF_INTERRUPT_PIN, CONF_RESET_PIN
from .. import axs15231_ns
AXS15231Touchscreen = axs15231_ns.class_(
"AXS15231Touchscreen",
touchscreen.Touchscreen,
i2c.I2CDevice,
)
CONFIG_SCHEMA = (
touchscreen.touchscreen_schema("50ms")
.extend(
{
cv.GenerateID(): cv.declare_id(AXS15231Touchscreen),
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(0x3B))
)
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await touchscreen.register_touchscreen(var, config)
await i2c.register_i2c_device(var, 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)))

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#include "axs15231_touchscreen.h"
#include "esphome/core/helpers.h"
#include "esphome/core/log.h"
namespace esphome {
namespace axs15231 {
static const char *const TAG = "ax15231.touchscreen";
constexpr static const uint8_t AXS_READ_TOUCHPAD[11] = {0xb5, 0xab, 0xa5, 0x5a, 0x0, 0x0, 0x0, 0x8};
#define ERROR_CHECK(err) \
if ((err) != i2c::ERROR_OK) { \
this->status_set_warning("Failed to communicate"); \
return; \
}
void AXS15231Touchscreen::setup() {
ESP_LOGCONFIG(TAG, "Setting up AXS15231 Touchscreen...");
if (this->reset_pin_ != nullptr) {
this->reset_pin_->setup();
this->reset_pin_->digital_write(false);
delay(5);
this->reset_pin_->digital_write(true);
delay(10);
}
if (this->interrupt_pin_ != nullptr) {
this->interrupt_pin_->pin_mode(gpio::FLAG_INPUT);
this->interrupt_pin_->setup();
this->attach_interrupt_(this->interrupt_pin_, gpio::INTERRUPT_FALLING_EDGE);
}
this->x_raw_max_ = this->display_->get_native_width();
this->y_raw_max_ = this->display_->get_native_height();
ESP_LOGCONFIG(TAG, "AXS15231 Touchscreen setup complete");
}
void AXS15231Touchscreen::update_touches() {
i2c::ErrorCode err;
uint8_t data[8]{};
err = this->write(AXS_READ_TOUCHPAD, sizeof(AXS_READ_TOUCHPAD), false);
ERROR_CHECK(err);
err = this->read(data, sizeof(data));
ERROR_CHECK(err);
this->status_clear_warning();
if (data[0] != 0) // no touches
return;
uint16_t x = encode_uint16(data[2] & 0xF, data[3]);
uint16_t y = encode_uint16(data[4] & 0xF, data[5]);
this->add_raw_touch_position_(0, x, y);
}
void AXS15231Touchscreen::dump_config() {
ESP_LOGCONFIG(TAG, "AXS15231 Touchscreen:");
LOG_I2C_DEVICE(this);
LOG_PIN(" Interrupt Pin: ", this->interrupt_pin_);
LOG_PIN(" Reset Pin: ", this->reset_pin_);
ESP_LOGCONFIG(TAG, " Width: %d", this->x_raw_max_);
ESP_LOGCONFIG(TAG, " Height: %d", this->y_raw_max_);
}
} // namespace axs15231
} // namespace esphome

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#pragma once
#include "esphome/components/i2c/i2c.h"
#include "esphome/components/touchscreen/touchscreen.h"
#include "esphome/core/component.h"
#include "esphome/core/hal.h"
namespace esphome {
namespace axs15231 {
class AXS15231Touchscreen : public touchscreen::Touchscreen, public i2c::I2CDevice {
public:
void setup() override;
void dump_config() override;
void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
void set_reset_pin(GPIOPin *pin) { this->reset_pin_ = pin; }
protected:
void update_touches() override;
InternalGPIOPin *interrupt_pin_{};
GPIOPin *reset_pin_{};
};
} // namespace axs15231
} // namespace esphome

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i2c:
- id: i2c_axs15231
scl: 3
sda: 21
display:
- platform: ssd1306_i2c
id: ssd1306_display
model: SSD1306_128X64
reset_pin: 19
pages:
- id: page1
lambda: |-
it.rectangle(0, 0, it.get_width(), it.get_height());
touchscreen:
- platform: axs15231
display: ssd1306_display
interrupt_pin: 20
reset_pin: 18

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<<: !include common.yaml

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<<: !include common.yaml

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<<: !include common.yaml

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<<: !include common.yaml

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i2c:
- id: i2c_axs15231
scl: 5
sda: 4
display:
- platform: ssd1306_i2c
id: ssd1306_display
model: SSD1306_128X64
reset_pin: 13
pages:
- id: page1
lambda: |-
it.rectangle(0, 0, it.get_width(), it.get_height());
touchscreen:
- platform: axs15231
display: ssd1306_display
interrupt_pin: 12

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<<: !include common.yaml