Device migrations, driver migrations and more (#575)

Devices/m5stack-tab5/Source/devices/detect.cpp

@@ -0,0 +1,48 @@
+#include "detect.h"
+
+#include <tactility/device.h>
+#include <tactility/drivers/i2c_controller.h>
+#include <tactility/log.h>
+
+#include <esp_lcd_touch_gt911.h>
+#include <esp_lcd_touch_st7123.h>
+
+#include <freertos/FreeRTOS.h>
+
+constexpr auto* TAG = "Tab5";
+
+static Tab5Variant detected_variant = Tab5Variant::Unknown;
+
+Tab5Variant tab5_get_variant() {
+    return detected_variant;
+}
+
+void tab5_set_variant(Tab5Variant variant) {
+    detected_variant = variant;
+}
+
+Tab5Variant tab5_probe_variant(Device* i2c0) {
+    // Allow time for the touch IC to fully boot after the reset pulse above: 100ms is enough for
+    // I2C ACK (probe) but cold power-on needs ~300ms before register reads succeed reliably.
+    vTaskDelay(pdMS_TO_TICKS(300));
+
+    constexpr auto PROBE_TIMEOUT = pdMS_TO_TICKS(50);
+
+    for (int attempt = 0; attempt < 3; ++attempt) {
+        if (i2c_controller_has_device_at_address(i2c0, ESP_LCD_TOUCH_IO_I2C_GT911_ADDRESS, PROBE_TIMEOUT) == ERROR_NONE ||
+            i2c_controller_has_device_at_address(i2c0, ESP_LCD_TOUCH_IO_I2C_GT911_ADDRESS_BACKUP, PROBE_TIMEOUT) == ERROR_NONE) {
+            LOG_I(TAG, "display_detect: detected GT911 touch — using variant V1 ");
+            return Tab5Variant::V1;
+        }
+
+        if (i2c_controller_has_device_at_address(i2c0, ESP_LCD_TOUCH_IO_I2C_ST7123_ADDRESS, PROBE_TIMEOUT) == ERROR_NONE) {
+            LOG_I(TAG, "display_detect: detected ST7123 touch — using variant V2");
+            return Tab5Variant::V2;
+        }
+
+        vTaskDelay(pdMS_TO_TICKS(100));
+    }
+
+    LOG_W(TAG, "display_detect: no known touch controller detected, defaulting to V2");
+    return Tab5Variant::V2;
+}