Add USB Support for CH32L103 (But not work)

src/arduino/ports/ch32/Adafruit_TinyUSB_ch32.cpp

@@ -25,7 +25,8 @@
 #include "tusb_option.h"
 
 #if CFG_TUD_ENABLED &&                                                         \
-    (defined(ARDUINO_ARCH_CH32) || defined(CH32V20x) || defined(CH32V30x))
+    (defined(ARDUINO_ARCH_CH32) || defined(CH32V20x) || defined(CH32V30x) ||   \
+     defined(CH32X035) || defined(CH32L10x))
 
 #include "Arduino.h"
 #include "arduino/Adafruit_USBD_Device.h"
@@ -60,10 +61,13 @@ USBWakeUp_IRQHandler(void) {
 // USBFS
 #if CFG_TUD_WCH_USBIP_USBFS
 
-#if defined(CH32V10x) || defined(CH32V20x)
+#if defined(CH32V10x) || defined(CH32V20x) || defined(CH32L10x)
 
 #if defined(CH32V10x)
 #define USBHDWakeUp_IRQHandler USBWakeUp_IRQHandler
+#elif defined(CH32X035) || defined(CH32L10x)
+#define USBHD_IRQHandler USBFS_IRQHandler
+#define USBHDWakeUp_IRQHandler USBFSWakeUp_IRQHandler
 #endif
 
 __attribute__((interrupt("WCH-Interrupt-fast"))) void USBHD_IRQHandler(void) {
@@ -112,9 +116,14 @@ void TinyUSB_Port_InitDevice(uint8_t rhport) {
   EXTEN->EXTEN_CTR &= ~EXTEN_USB_5V_SEL;
 
 #define RCC_AHBPeriph_OTG_FS RCC_AHBPeriph_USBHD
+#elif defined(CH32X035)
+#define RCC_AHBPeriph_OTG_FS RCC_AHBPeriph_USBFS
+#elif defined(CH32L10x)
+#define RCC_AHBPeriph_OTG_FS RCC_HBPeriph_USBFS
+#define RCC_AHBPeriphClockCmd RCC_HBPeriphClockCmd
 #endif
 
-  uint8_t usb_div;
+  uint32_t usb_div;
   switch (SystemCoreClock) {
 #if defined(CH32V20x) || defined(CH32V30x)
   case 48000000:
@@ -133,14 +142,27 @@ void TinyUSB_Port_InitDevice(uint8_t rhport) {
   case 72000000:
     usb_div = RCC_USBCLKSource_PLLCLK_1Div5;
     break;
+#elif defined(CH32X035)
+  case 48000000:
+    break;
+#elif defined(CH32L10x)
+  case 48000000:
+    usb_div = RCC_USBCLKSource_PLLCLK_Div1;
+    break;
+  case 72000000:
+    usb_div = RCC_USBCLKSource_PLLCLK_Div1_5;
+    break;
+  case 96000000:
+    usb_div = RCC_USBCLKSource_PLLCLK_Div2;
+    break;
 #endif
   default:
     return; // unsupported
   }
 
 #if defined(CH32V30x)
   RCC_OTGFSCLKConfig(usb_div);
-#else
+#elif !defined(CH32X035)
   RCC_USBCLKConfig(usb_div);
 #endif
 

src/arduino/ports/ch32/tusb_config_ch32.h

@@ -34,11 +34,16 @@ extern "C" {
 //--------------------------------------------------------------------
 #if defined(CH32V10x)
 #define CFG_TUSB_MCU OPT_MCU_CH32V103
-#warnning "CH32v103 is not working yet"
+#warning "CH32V103 is not working yet"
 #elif defined(CH32V20x)
 #define CFG_TUSB_MCU OPT_MCU_CH32V20X
 #elif defined(CH32V30x)
 #define CFG_TUSB_MCU OPT_MCU_CH32V307
+#elif defined(CH32X035)
+#define CFG_TUSB_MCU OPT_MCU_CH32X035
+#elif defined(CH32L10x)
+#define CFG_TUSB_MCU OPT_MCU_CH32L10X
+#warning "CH32L103 is not working yet"
 #endif
 
 #define CFG_TUSB_OS OPT_OS_NONE

src/common/tusb_mcu.h

@@ -473,6 +473,16 @@
   #define TUP_RHPORT_HIGHSPEED    CFG_TUD_WCH_USBIP_USBHS
   #define TUP_DCD_ENDPOINT_MAX    (CFG_TUD_WCH_USBIP_USBHS ? 16 : 8)
 
+#elif TU_CHECK_MCU(OPT_MCU_CH32X035) || TU_CHECK_MCU(OPT_MCU_CH32L10X)
+  // x035 and l103 support USBFS only
+  #define TUP_USBIP_WCH_USBFS
+
+  #if !defined(CFG_TUD_WCH_USBIP_USBFS)
+  #define CFG_TUD_WCH_USBIP_USBFS 1
+  #endif
+
+  #define TUP_DCD_ENDPOINT_MAX    8
+
 //--------------------------------------------------------------------+
 // Analog Devices
 //--------------------------------------------------------------------+

src/portable/wch/ch32_usbfs_reg.h

@@ -97,6 +97,14 @@
 #elif CFG_TUSB_MCU == OPT_MCU_CH32V307
   #include <ch32v30x.h>
   #define USBHD_IRQn OTG_FS_IRQn
+#elif CFG_TUSB_MCU == OPT_MCU_CH32X035
+  #include <ch32x035.h>
+  #define USBOTG_FS USBFSD
+  #define USBHD_IRQn USBFS_IRQn
+#elif CFG_TUSB_MCU == OPT_MCU_CH32L10X
+  #include <ch32l103.h>
+  #define USBOTG_FS USBFSD
+  #define USBHD_IRQn USBFS_IRQn
 #endif
 
 #ifdef __GNUC__

src/tusb_option.h

@@ -181,8 +181,10 @@
 // WCH
 #define OPT_MCU_CH32V307         2200 ///< WCH CH32V307
 #define OPT_MCU_CH32F20X         2210 ///< WCH CH32F20x
-#define OPT_MCU_CH32V20X         2220 ///< WCH CH32V20X
+#define OPT_MCU_CH32V20X         2220 ///< WCH CH32V20x
 #define OPT_MCU_CH32V103         2230 ///< WCH CH32V103
+#define OPT_MCU_CH32X035         2240 ///< WCH CH32X035
+#define OPT_MCU_CH32L10X         2250 ///< WCH CH32L10x
 
 // NXP LPC MCX
 #define OPT_MCU_MCXN9            2300  ///< NXP MCX N9 Series