Add Host support for ch32v20x usbfs

examples/dual/host_hid_to_device_cdc/only.txt

@@ -1,6 +1,7 @@
 board:mimxrt1060_evk
 board:mimxrt1064_evk
 board:mcb1800
+mcu:CH32V20X
 mcu:RP2040
 mcu:ra6m5
 mcu:MAX3421

examples/dual/host_info_to_device_cdc/only.txt

@@ -1,6 +1,7 @@
 board:mimxrt1060_evk
 board:mimxrt1064_evk
 board:mcb1800
+mcu:CH32V20X
 mcu:RP2040
 mcu:ra6m5
 mcu:MAX3421

examples/host/bare_api/only.txt

@@ -1,3 +1,4 @@
+mcu:CH32V20X
 mcu:KINETIS_KL
 mcu:LPC175X_6X
 mcu:LPC177X_8X

examples/host/cdc_msc_hid/only.txt

@@ -1,3 +1,4 @@
+mcu:CH32V20X
 mcu:KINETIS_KL
 mcu:LPC175X_6X
 mcu:LPC177X_8X

examples/host/device_info/only.txt

@@ -1,3 +1,4 @@
+mcu:CH32V20X
 mcu:ESP32S2
 mcu:ESP32S3
 mcu:ESP32P4

examples/host/hid_controller/only.txt

@@ -1,3 +1,4 @@
+mcu:CH32V20X
 mcu:KINETIS_KL
 mcu:LPC175X_6X
 mcu:LPC177X_8X

examples/host/midi_rx/only.txt

@@ -1,3 +1,4 @@
+mcu:CH32V20X
 mcu:ESP32S2
 mcu:ESP32S3
 mcu:ESP32P4

examples/host/msc_file_explorer/only.txt

@@ -1,3 +1,4 @@
+mcu:CH32V20X
 mcu:KINETIS_KL
 mcu:LPC175X_6X
 mcu:LPC177X_8X

hw/bsp/ch32v20x/family.c

@@ -20,56 +20,56 @@ manufacturer: WCH
 #include "bsp/board_api.h"
 #include "board.h"
 
-/* CH32v203 depending on variants can support 2 USB IPs: FSDEV and USBFS.
+/* CH32v203 depending on variants can support 2 USB IPs: FSDEV (port0) and USBFS (port1).
  * By default, we use FSDEV, but you can explicitly select by define:
  * - CFG_TUD_WCH_USBIP_FSDEV
  * - CFG_TUD_WCH_USBIP_USBFS
  */
 
-// USBFS
-__attribute__((interrupt)) __attribute__((used))
-void USBHD_IRQHandler(void) {
-  #if CFG_TUD_WCH_USBIP_USBFS
+// Port0: USBD (fsdev)
+__attribute__((interrupt)) __attribute__((used)) void USB_LP_CAN1_RX0_IRQHandler(void) {
+  #if CFG_TUD_WCH_USBIP_FSDEV
   tud_int_handler(0);
   #endif
 }
 
-__attribute__((interrupt)) __attribute__((used))
-void USBHDWakeUp_IRQHandler(void) {
-  #if CFG_TUD_WCH_USBIP_USBFS
+__attribute__((interrupt)) __attribute__((used)) void USB_HP_CAN1_TX_IRQHandler(void) {
+  #if CFG_TUD_WCH_USBIP_FSDEV
   tud_int_handler(0);
   #endif
+
 }
 
-// USBD (fsdev)
-__attribute__((interrupt)) __attribute__((used))
-void USB_LP_CAN1_RX0_IRQHandler(void) {
+__attribute__((interrupt)) __attribute__((used)) void USBWakeUp_IRQHandler(void) {
   #if CFG_TUD_WCH_USBIP_FSDEV
   tud_int_handler(0);
   #endif
 }
 
-__attribute__((interrupt)) __attribute__((used))
-void USB_HP_CAN1_TX_IRQHandler(void) {
-  #if CFG_TUD_WCH_USBIP_FSDEV
-  tud_int_handler(0);
+// Port1: USBFS
+__attribute__((interrupt)) __attribute__((used)) void USBHD_IRQHandler(void) {
+  #if CFG_TUD_ENABLED && CFG_TUD_WCH_USBIP_USBFS
+  tud_int_handler(1);
   #endif
 
+  #if CFG_TUH_ENABLED
+  tuh_int_handler(1);
+  #endif
 }
 
-__attribute__((interrupt)) __attribute__((used))
-void USBWakeUp_IRQHandler(void) {
-  #if CFG_TUD_WCH_USBIP_FSDEV
+__attribute__((interrupt)) __attribute__((used)) void USBHDWakeUp_IRQHandler(void) {
+  #if CFG_TUD_WCH_USBIP_USBFS
   tud_int_handler(0);
   #endif
 }
 
-
+//--------------------------------------------------------------------+
+// Board API
+//--------------------------------------------------------------------+
 #if CFG_TUSB_OS == OPT_OS_NONE
 volatile uint32_t system_ticks = 0;
 
-__attribute__((interrupt))
-void SysTick_Handler(void) {
+__attribute__((interrupt)) void SysTick_Handler(void) {
   SysTick->SR = 0;
   system_ticks++;
 }
@@ -108,7 +108,7 @@ void board_init(void) {
 #ifdef UART_DEV
   UART_CLOCK_EN();
   GPIO_InitTypeDef usart_init = {
-    .GPIO_Pin = UART_TX_PIN,
+    .GPIO_Pin = UART_TX_PIN | UART_RX_PIN,
     .GPIO_Speed = GPIO_Speed_50MHz,
     .GPIO_Mode = GPIO_Mode_AF_PP,
   };
@@ -119,7 +119,7 @@ void board_init(void) {
     .USART_WordLength = USART_WordLength_8b,
     .USART_StopBits = USART_StopBits_1,
     .USART_Parity = USART_Parity_No,
-    .USART_Mode = USART_Mode_Tx,
+    .USART_Mode = USART_Mode_Tx | USART_Mode_Rx,
     .USART_HardwareFlowControl = USART_HardwareFlowControl_None,
   };
   USART_Init(UART_DEV, &usart);
@@ -189,9 +189,19 @@ size_t board_get_unique_id(uint8_t id[], size_t max_len) {
 }
 
 int board_uart_read(uint8_t *buf, int len) {
-  (void) buf;
-  (void) len;
+#ifdef UART_DEV
+  int count;
+  for (count = 0; count < len; count++) {
+    if (USART_GetFlagStatus(UART_DEV, USART_FLAG_RXNE) == RESET) {
+      break;
+    }
+    buf[count] = USART_ReceiveData(UART_DEV);
+  }
+  return count;
+#else
+  (void) buf; (void) len;
   return 0;
+#endif
 }
 
 int board_uart_write(void const *buf, int len) {
@@ -207,7 +217,3 @@ int board_uart_write(void const *buf, int len) {
 
   return len;
 }
-
-//--------------------------------------------------------------------
-// Neopixel
-//--------------------------------------------------------------------

hw/bsp/ch32v20x/family.cmake

@@ -16,9 +16,12 @@ set(FAMILY_MCUS CH32V20X CACHE INTERNAL "")
 set(OPENOCD_OPTION "-f ${CMAKE_CURRENT_LIST_DIR}/wch-riscv.cfg")
 
 # Port0 use FSDev, Port1 use USBFS
-if (NOT DEFINED PORT)
-  set(PORT 0)
-endif()
+if (NOT DEFINED RHPORT_DEVICE)
+  set(RHPORT_DEVICE 0)
+endif ()
+
+# only port1 support host mode
+set(RHPORT_HOST 1)
 
 #------------------------------------
 # BOARD_TARGET
@@ -56,18 +59,16 @@ function(add_board_target BOARD_TARGET)
     )
   target_compile_definitions(${BOARD_TARGET} PUBLIC
     CH32V20x_${MCU_VARIANT}
+    BOARD_TUD_RHPORT=${RHPORT_DEVICE}
+    BOARD_TUH_RHPORT=${RHPORT_HOST}
     )
 
-  if (PORT EQUAL 0)
-    target_compile_definitions(${BOARD_TARGET} PUBLIC
-      CFG_TUD_WCH_USBIP_FSDEV=1
-      )
-  elseif (PORT EQUAL 1)
-    target_compile_definitions(${BOARD_TARGET} PUBLIC
-      CFG_TUD_WCH_USBIP_USBFS=1
-      )
+  if (RHPORT_DEVICE EQUAL 0)
+    target_compile_definitions(${BOARD_TARGET} PUBLIC CFG_TUD_WCH_USBIP_FSDEV=1)
+  elseif (RHPORT_DEVICE EQUAL 1)
+    target_compile_definitions(${BOARD_TARGET} PUBLIC CFG_TUH_WCH_USBIP_USBFS=1)
   else()
-    message(FATAL_ERROR "Invalid PORT ${PORT}")
+    message(FATAL_ERROR "Invalid RHPORT_DEVICE ${RHPORT_DEVICE}")
   endif()
 
   update_board(${BOARD_TARGET})
@@ -127,12 +128,11 @@ function(family_configure_example TARGET RTOS)
 
   target_sources(${TARGET} PUBLIC
     ${TOP}/src/portable/wch/dcd_ch32_usbfs.c
+    ${TOP}/src/portable/wch/hcd_ch32_usbfs.c
     ${TOP}/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
     )
   target_link_libraries(${TARGET} PUBLIC board_${BOARD})
 
-
-
   # Flashing
   family_add_bin_hex(${TARGET})
   family_flash_openocd_wch(${TARGET})

hw/bsp/ch32v20x/family.mk

@@ -30,6 +30,8 @@ CFLAGS += -Wno-error=strict-prototypes
 ifeq ($(PORT),0)
   $(info "Using FSDEV driver")
   CFLAGS += -DCFG_TUD_WCH_USBIP_FSDEV=1
+  $(info "Using USBFS Host driver")
+  CFLAGS += -DCFG_TUH_WCH_USBIP_USBFS=1
 else
   $(info "Using USBFS driver")
   CFLAGS += -DCFG_TUD_WCH_USBIP_USBFS=1
@@ -43,6 +45,7 @@ LD_FILE = $(FAMILY_PATH)/linker/${CH32_FAMILY}.ld
 
 SRC_C += \
 	src/portable/wch/dcd_ch32_usbfs.c \
+	src/portable/wch/hcd_ch32_usbfs.c \
 	src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c \
 	$(SDK_SRC_DIR)/Core/core_riscv.c \
 	$(SDK_SRC_DIR)/Peripheral/src/${CH32_FAMILY}_gpio.c \

src/common/tusb_mcu.h

@@ -503,11 +503,17 @@
   #define TUP_DCD_ENDPOINT_MAX    8
 
 #elif TU_CHECK_MCU(OPT_MCU_CH32V20X)
-  // v20x support both FSDEV (USBD) and USBFS, default to FSDEV
+  // v20x support both port0 FSDEV (USBD) and port1 USBFS
   #define TUP_USBIP_WCH_USBFS
+
+  #ifndef CFG_TUH_WCH_USBIP_USBFS
+  #define CFG_TUH_WCH_USBIP_USBFS 1
+  #endif
+
   #define TUP_USBIP_FSDEV
   #define TUP_USBIP_FSDEV_CH32
 
+  // default to FSDEV for device
   #if !defined(CFG_TUD_WCH_USBIP_USBFS)
   #define CFG_TUD_WCH_USBIP_USBFS 0
   #endif

src/portable/wch/dcd_ch32_usbhs.c

@@ -27,7 +27,7 @@
 
 #include "tusb_option.h"
 
-#if CFG_TUD_ENABLED && defined(TUP_USBIP_WCH_USBHS) && CFG_TUD_WCH_USBIP_USBHS
+#if CFG_TUD_ENABLED && defined(TUP_USBIP_WCH_USBHS) && defined(CFG_TUD_WCH_USBIP_USBHS) && CFG_TUD_WCH_USBIP_USBHS
 #include "ch32_usbhs_reg.h"
 
 #include "device/dcd.h"