Tab5 ST7121 variant + fixes (#605)

Added the newest variant to the tab5, St7121. Fixed variant detection reliability Fixed tab5 camera WHO_AM_I failing sometimes Fixed tab5 keyboard live rotation on boot and after stopping/starting lvgl
2026-08-02 04:50:55 +10:00
parent d72d5a0ef2
commit 85fe1a319a
31 changed files with 1531 additions and 222 deletions
@@ -0,0 +1,48 @@
+#include "devices_v2_v3_touch.h"
+
+#include "devices_common.h"
+
+#include <tactility/device.h>
+#include <tactility/drivers/gpio.h>
+#include <tactility/log.h>
+
+#include <drivers/st7123_touch.h>
+
+constexpr auto* TAG = "Tab5";
+
+static St7123TouchConfig st7123_touch_config {};
+static Device st7123_touch_device {};
+
+void create_st7123_touch(Device* i2c0) {
+    st7123_touch_device = Device {
+        .address = 0,
+        .name = "touch0",
+        .config = nullptr,
+        .parent = nullptr,
+        .internal = nullptr,
+    };
+
+    GpioPinSpec pin_interrupt = GPIO_PIN_SPEC_NONE;
+    Device* gpio0 = nullptr;
+    if (device_get_by_name("gpio0", &gpio0) == ERROR_NONE) {
+        pin_interrupt = GpioPinSpec { gpio0, 23, GPIO_FLAG_NONE };
+        device_put(gpio0);
+    } else {
+        LOG_W(TAG, "display_detect: gpio0 not found, touch interrupt pin will not be wired");
+    }
+
+    st7123_touch_config = St7123TouchConfig {
+        .address = 0x55, // fixed - see ESP_LCD_TOUCH_IO_I2C_ST7123_ADDRESS
+        .x_max = 720,
+        .y_max = 1280,
+        .swap_xy = false,
+        .mirror_x = false,
+        .mirror_y = false,
+        // Reset is pulsed via io_expander0 (detect.cpp's pulse_display_reset_pins), not a direct SoC GPIO.
+        .pin_reset = GPIO_PIN_SPEC_NONE,
+        .pin_interrupt = pin_interrupt,
+    };
+    st7123_touch_device.config = &st7123_touch_config;
+
+    construct_add_start(&st7123_touch_device, i2c0, "sitronix,st7123-touch");
+}