Ken Van Hoeylandt
3b5a401594
* **New Features** * Added native display support for ST7796, ILI9341, and ST7789 panels across supported boards. * Added FT5x06 and FT6x36 touchscreen support. * Generic PWM driver * ESP32 PWM driver * Generic RGB LED driver * RGB PWM LED driver * RGB GPIO LED driver * Implementation of RGB LED for various boards * **Improvements** * Updated board hardware descriptions to use explicit display/touch/backlight device-tree bindings and disabled deprecated HAL usage. * Improved display and touch-driver cleanup to prevent stale resources and improve shutdown reliability. * Pinned esp-hosted library to a fixed version * **Deletions** * Obsolete placeholder display * Legacy ILI9488 support. * ESP32-specific LEDC PWM implementation
150 lines
3.7 KiB
Devicetree
150 lines
3.7 KiB
Devicetree
/dts-v1/;
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#include <tactility/bindings/root.h>
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#include <tactility/bindings/battery_sense.h>
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#include <tactility/bindings/esp32_adc_oneshot.h>
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#include <tactility/bindings/esp32_wifi_pinned.h>
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#include <tactility/bindings/esp32_gpio.h>
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#include <tactility/bindings/esp32_i2c.h>
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#include <tactility/bindings/esp32_spi.h>
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#include <tactility/bindings/esp32_sdspi.h>
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#include <tactility/bindings/esp32_pwm_ledc.h>
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#include <tactility/bindings/pwm_backlight.h>
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#include <tactility/bindings/rgb_led_pwm.h>
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#include <bindings/st7789.h>
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#include <bindings/xpt2046.h>
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/ {
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compatible = "root";
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model = "CYD E32R32P";
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wifi0 {
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compatible = "espressif,esp32-wifi-pinned";
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status = "disabled";
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};
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gpio0 {
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compatible = "espressif,esp32-gpio";
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gpio-count = <40>;
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};
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i2c_external {
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compatible = "espressif,esp32-i2c";
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port = <I2C_NUM_0>;
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clock-frequency = <400000>;
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pin-sda = <&gpio0 32 GPIO_FLAG_NONE>;
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pin-scl = <&gpio0 25 GPIO_FLAG_NONE>;
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};
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adc0 {
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compatible = "espressif,esp32-adc-oneshot";
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unit-id = <ADC_UNIT_1>;
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channels = <ADC_CHANNEL_6 ADC_ATTEN_DB_12 ADC_BITWIDTH_DEFAULT>;
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};
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rgb_led_channel_red {
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compatible = "espressif,esp32-pwm-ledc";
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pin = <&gpio0 22 GPIO_FLAG_NONE>;
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period-ns = <500000>;
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ledc-timer = <0>;
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ledc-channel = <0>;
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inverted;
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};
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rgb_led_channel_green {
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compatible = "espressif,esp32-pwm-ledc";
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pin = <&gpio0 16 GPIO_FLAG_NONE>;
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period-ns = <500000>;
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ledc-timer = <0>;
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ledc-channel = <1>;
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inverted;
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};
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rgb_led_channel_blue {
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compatible = "espressif,esp32-pwm-ledc";
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pin = <&gpio0 17 GPIO_FLAG_NONE>;
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period-ns = <500000>;
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ledc-timer = <0>;
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ledc-channel = <2>;
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inverted;
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};
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rgb_led_pwm {
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compatible = "rgb-led-pwm";
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pwm-red = <&rgb_led_channel_red>;
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pwm-green = <&rgb_led_channel_green>;
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pwm-blue = <&rgb_led_channel_blue>;
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// Default is red, and we want to reset it to off by default
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default-color = <0 0 0>;
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enabled;
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};
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// Matches the deprecated HAL's old ChargeFromAdcVoltage config: adcMultiplier=2.11,
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// adcRefVoltage=3.3 (default), voltageMin/Max=3.2/4.2 (default, same as battery-sense's own
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// fixed curve - see TactilityKernel/source/drivers/battery_sense.cpp).
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battery-sense {
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compatible = "battery-sense";
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io-channel = <&adc0 0>;
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reference-voltage-mv = <3300>;
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multiplier = <2110>;
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};
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display_backlight_pwm {
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compatible = "espressif,esp32-pwm-ledc";
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pin = <&gpio0 27 GPIO_FLAG_NONE>;
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period-ns = <25000>;
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ledc-timer = <1>;
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ledc-channel = <3>;
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};
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display_backlight {
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compatible = "pwm-backlight";
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// Off by default so display power-on won't show the screen from before the last power loss.
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// The display backlight is turned on during the boot process.
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status = "disabled";
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pwm = <&display_backlight_pwm>;
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};
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spi0 {
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compatible = "espressif,esp32-spi";
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host = <SPI2_HOST>;
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cs-gpios = <&gpio0 15 GPIO_FLAG_NONE>, // Display
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<&gpio0 33 GPIO_FLAG_NONE>; // Touch
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pin-mosi = <&gpio0 13 GPIO_FLAG_NONE>;
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pin-miso = <&gpio0 12 GPIO_FLAG_NONE>;
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pin-sclk = <&gpio0 14 GPIO_FLAG_NONE>;
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display@0 {
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compatible = "sitronix,st7789";
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horizontal-resolution = <240>;
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vertical-resolution = <320>;
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bgr-order;
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pixel-clock-hz = <40000000>;
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pin-dc = <&gpio0 2 GPIO_FLAG_NONE>;
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backlight = <&display_backlight>;
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};
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touch@1 {
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compatible = "xptek,xpt2046";
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x-max = <240>;
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y-max = <320>;
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mirror-x;
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mirror-y;
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};
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};
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spi1 {
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compatible = "espressif,esp32-spi";
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host = <SPI3_HOST>;
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cs-gpios = <&gpio0 5 GPIO_FLAG_NONE>;
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pin-mosi = <&gpio0 23 GPIO_FLAG_NONE>;
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pin-miso = <&gpio0 19 GPIO_FLAG_NONE>;
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pin-sclk = <&gpio0 18 GPIO_FLAG_NONE>;
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sdcard@0 {
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compatible = "espressif,esp32-sdspi";
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frequency-khz = <20000>;
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};
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};
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};
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