M5Stack Tab5 TinyUSB MSC support implemented (#530)

Tactility/Source/hal/usb/UsbTusb.cpp

@@ -12,6 +12,10 @@
 #include <tusb_msc_storage.h>
 #include <wear_levelling.h>
 
+#if CONFIG_IDF_TARGET_ESP32P4
+#include "hal/usb_wrap_ll.h"
+#endif
+
 #define EPNUM_MSC 1
 #define TUSB_DESC_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_MSC_DESC_LEN)
 #define SECTOR_SIZE 512
@@ -105,6 +109,13 @@ static bool ensureDriverInstalled() {
         return true;
     }
 
+#if CONFIG_IDF_TARGET_ESP32P4
+    // Tab5's USB-C port is wired to FSLS PHY0, but the USB_WRAP (FS/FSLS) controller
+    // used by TinyUSB device mode defaults to FSLS PHY1. Route it to PHY0 before
+    // installing the TinyUSB driver.
+    usb_wrap_ll_phy_select(&USB_WRAP, 0);
+#endif
+
     const tinyusb_config_t tusb_cfg = {
         .device_descriptor = &descriptor_config,
         .string_descriptor = string_desc_arr,
@@ -123,6 +134,10 @@ static bool ensureDriverInstalled() {
 
     if (tinyusb_driver_install(&tusb_cfg) != ESP_OK) {
         LOGGER.error("Failed to install TinyUSB driver");
+#if CONFIG_IDF_TARGET_ESP32P4
+        // Roll back routing when TinyUSB did not start.
+        usb_wrap_ll_phy_select(&USB_WRAP, 1);
+#endif
         return false;
     }
 
@@ -198,6 +213,9 @@ bool tusbStartMassStorageWithFlash() {
 
 void tusbStop() {
     tinyusb_msc_storage_deinit();
+#if CONFIG_IDF_TARGET_ESP32P4
+    usb_wrap_ll_phy_select(&USB_WRAP, 1);
+#endif
 }
 
 bool tusbCanStartMassStorageWithFlash() {