Implement Tulip Creative Computer 4r11 (#608)
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NellowTCS
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/dts-v1/;
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#include <tactility/bindings/battery_sense.h>
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#include <tactility/bindings/root.h>
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#include <tactility/bindings/esp32_adc_oneshot.h>
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#include <tactility/bindings/esp32_ble.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_i2s.h>
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#include <tactility/bindings/esp32_usbhost.h>
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#include <tactility/bindings/esp32_pwm_ledc.h>
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#include <tactility/bindings/gpio_hog.h>
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#include <tactility/bindings/pwm_backlight.h>
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#include <bindings/rgb_display.h>
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#include <bindings/gt911.h>
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#include <bindings/dummy_i2s_amp.h>
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// Reference: https: //github.com/TulipCC/tulipcc/
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/ {
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compatible = "root";
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model = "Tulip 4 (R11)";
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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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ble0 {
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compatible = "espressif,esp32-ble";
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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 = <49>;
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};
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// Battery voltage is sensed through the 470K/470K divider (R34/R38) into GPIO3
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// (ADC1_CH2), i.e. a straight 2: 1 divider; the RY3730 charger IC has no I2C
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// interface to drive. Reference: tulipcc tulip/shared/py/tulip.py battery().
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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_2 ADC_ATTEN_DB_12 ADC_BITWIDTH_DEFAULT>;
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};
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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 = <2000>;
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};
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// The Grove connector shares this I2C bus with the touch controller
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i2c0 {
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compatible = "espressif,esp32-i2c";
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port = <I2C_NUM_0>;
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clock-frequency = <100000>;
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pin-sda = <&gpio0 17 GPIO_FLAG_PULL_UP>;
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pin-scl = <&gpio0 18 GPIO_FLAG_PULL_UP>;
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touch0 {
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compatible = "goodix,gt911";
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reg = <0x5D>;
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x-max = <1024>;
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y-max = <600>;
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// R11 inverts the reset line (active-high) and needs two toggle cycles before it
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// starts responding on I2C.
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pin-reset = <&gpio0 48 GPIO_FLAG_ACTIVE_HIGH>;
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reset-pulses = <2>;
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// The controller's programmed Y range (~750) exceeds the panel's 600 rows and the
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// sensor sits slightly offset from the panel; calibrate per the reference firmware
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x-offset = <-2>;
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y-offset = <-10>;
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y-scale = <800>;
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};
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};
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// The unused panel data lines (G2 and B3 are unconnected on R11) are driven low exactly
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// like the reference firmware does, so the panel never sees floating inputs on them.
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panel_data_low_b4 {
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compatible = "gpio-hog";
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pin = <&gpio0 38 GPIO_FLAG_NONE>;
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mode = <GPIO_HOG_MODE_OUTPUT_LOW>;
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};
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panel_data_low_b5 {
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compatible = "gpio-hog";
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pin = <&gpio0 46 GPIO_FLAG_NONE>;
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mode = <GPIO_HOG_MODE_OUTPUT_LOW>;
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};
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panel_data_low_g3 {
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compatible = "gpio-hog";
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pin = <&gpio0 6 GPIO_FLAG_NONE>;
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mode = <GPIO_HOG_MODE_OUTPUT_LOW>;
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};
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panel_data_low_g4 {
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compatible = "gpio-hog";
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pin = <&gpio0 7 GPIO_FLAG_NONE>;
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mode = <GPIO_HOG_MODE_OUTPUT_LOW>;
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};
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panel_data_low_r3 {
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compatible = "gpio-hog";
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pin = <&gpio0 45 GPIO_FLAG_NONE>;
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mode = <GPIO_HOG_MODE_OUTPUT_LOW>;
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};
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panel_data_low_r4 {
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compatible = "gpio-hog";
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pin = <&gpio0 13 GPIO_FLAG_NONE>;
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mode = <GPIO_HOG_MODE_OUTPUT_LOW>;
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};
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// Backlight is active-low: the reference firmware drives duty 0 at max brightness.
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display_backlight_pwm {
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compatible = "espressif,esp32-pwm-ledc";
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pin = <&gpio0 47 GPIO_FLAG_NONE>;
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period-ns = <3333333>;
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duty-resolution = <13>;
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ledc-timer = <1>;
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ledc-channel = <1>;
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inverted;
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};
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display_backlight {
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compatible = "pwm-backlight";
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pwm = <&display_backlight_pwm>;
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brightness-level-range = <0 255>;
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brightness-default = <200>;
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};
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display0 {
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compatible = "espressif,esp32-rgb-display";
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horizontal-resolution = <1024>;
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vertical-resolution = <600>;
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pixel-clock-hz = <28000000>;
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hsync-pulse-width = <30>;
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hsync-back-porch = <16>;
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hsync-front-porch = <210>;
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vsync-pulse-width = <13>;
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vsync-back-porch = <10>;
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vsync-front-porch = <22>;
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data-width = <8>;
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bits-per-pixel = <8>;
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custom-pixel-format = <RGB_DISPLAY_PIXEL_FORMAT_RGB332>;
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num-fbs = <1>;
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pin-hsync = <&gpio0 39 GPIO_FLAG_NONE>;
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pin-vsync = <&gpio0 41 GPIO_FLAG_NONE>;
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pin-de = <&gpio0 40 GPIO_FLAG_NONE>;
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pin-pclk = <&gpio0 42 GPIO_FLAG_NONE>;
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pin-data0 = <&gpio0 9 GPIO_FLAG_NONE>; // B6
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pin-data1 = <&gpio0 1 GPIO_FLAG_NONE>; // B7
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pin-data2 = <&gpio0 15 GPIO_FLAG_NONE>; // G5
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pin-data3 = <&gpio0 16 GPIO_FLAG_NONE>; // G6
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pin-data4 = <&gpio0 4 GPIO_FLAG_NONE>; // G7
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pin-data5 = <&gpio0 10 GPIO_FLAG_NONE>; // R5
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pin-data6 = <&gpio0 21 GPIO_FLAG_NONE>; // R6
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pin-data7 = <&gpio0 14 GPIO_FLAG_NONE>; // R7
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backlight = <&display_backlight>;
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};
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i2s0 {
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compatible = "espressif,esp32-i2s";
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port = <I2S_NUM_0>;
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pin-bclk = <&gpio0 8 GPIO_FLAG_NONE>;
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pin-ws = <&gpio0 2 GPIO_FLAG_NONE>;
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pin-data-out = <&gpio0 5 GPIO_FLAG_NONE>;
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};
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speaker0 {
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compatible = "ti,pcm5101a";
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i2s = <&i2s0>;
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};
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usbhost0 {
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compatible = "espressif,esp32-usbhost";
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usbhosthid0 {
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compatible = "espressif,esp32-usbhost-hid";
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};
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usbhostmidi0 {
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compatible = "espressif,esp32-usbhost-midi";
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};
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usbhostmsc0 {
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compatible = "espressif,esp32-usbhost-msc";
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};
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};
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};
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