feat: add nationstech support

Signed-off-by: sakumisu <[email protected]>

2 files changed, 191 insertions, 0 deletions

diff --git a/port/dwc2/README.md b/port/dwc2/README.md
index b35a7a03..5e61d1c4 100644
--- a/port/dwc2/README.md
+++ b/port/dwc2/README.md
@@ -44,3 +44,7 @@ CONFIG_USBDEV_EP_NUM 必须为4 或者 6，并删除 usb_dc_dwc2.c 中 while(1){
 ## Kendryte
 
 - K230
+
+## Nationstech
+
+- N32H4X
\ No newline at end of file
diff --git a/port/dwc2/usb_glue_nation.c b/port/dwc2/usb_glue_nation.c
new file mode 100644
index 00000000..f899e738
--- /dev/null
+++ b/port/dwc2/usb_glue_nation.c
@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2025, sakumisu
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include "usbd_core.h"
+#include "usbh_core.h"
+
+__WEAK void USBD_IRQHandler(uint8_t busid)
+{
+}
+
+__WEAK void USBH_IRQHandler(uint8_t busid)
+{
+}
+
+#if defined(N32H473) || defined(N32H474) || defined(N32H475) || defined(N32H482) || defined(N32H487)
+#include "n32h47x_48x_rcc.h"
+#include "n32h47x_48x_gpio.h"
+#include "n32h47x_48x_exti.h"
+#include "misc.h"
+
+typedef void (*usb_dwc2_irq)(uint8_t busid);
+
+static usb_dwc2_irq g_usb_dwc2_irq;
+static volatile uint8_t g_usb_dwc2_busid = 0;
+
+static void usbhs_common_init(void)
+{
+    RCC_EnableAHB1PeriphClk(RCC_AHB_PERIPHEN_GPIOA | RCC_AHB_PERIPHEN_GPIOB, ENABLE);
+    RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_AFIO, ENABLE);
+    /* PLL= 240MHz */
+#if (HSE_VALUE == 8000000)
+    /* Select PLL clock as USBHS clock source , clock 15 divisions  = 16M */
+    RCC_ConfigUSBPLLPresClk(RCC_USBPLLCLK_SRC_PLL, RCC_USBPLLCLK_DIV15);
+
+    /* Select the corresponding bandwidth and frequency*/
+    RCC_ConfigUSBHSBandwidth(RCC_USBHS_BW_16M);
+
+    /* Select USBHS clock source frequency */
+    RCC_ConfigUSBHSFrequency(RCC_USBHS_FREQ_16_OR_32M);
+
+    /* Select PLL as USBHS clock */
+    RCC_ConfigUSBHSClk(RCC_USBHS_CLKSRC_PLLPRES);
+#else //HSE 16M
+    RCC_ConfigUSBHSBandwidth(RCC_USBHS_BW_16M);
+    RCC_ConfigUSBHSFrequency(RCC_USBHS_FREQ_16_OR_32M);
+    RCC_ConfigUSBHSClk(RCC_USBHS_CLKSRC_HSE);
+#endif
+    /* Reset the USBHS phy clock*/
+    RCC_EnableAHBPeriphReset(RCC_AHBPRST_USBHSPHYRST);
+    /* Enables the USBHS peripheral clock*/
+    RCC_EnableAHBPeriphClk(RCC_AHB_PERIPHEN_USBHS, ENABLE);
+
+    NVIC_InitType NVIC_InitStructure;
+    // EXTI_InitType EXTI_InitStructure;
+
+    // NVIC_InitStructure.NVIC_IRQChannel = USB_HS_WKUP_IRQn;
+    // NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
+    // NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
+    // NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    // NVIC_Init(&NVIC_InitStructure);
+
+    NVIC_InitStructure.NVIC_IRQChannel = USB_HS_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+    /* Configure the EXTI line 23 connected internally to the USBHS IP */
+    // EXTI_ClrITPendBit(EXTI_LINE23);
+    // EXTI_InitStructure.EXTI_Line = EXTI_LINE23;
+    // EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+    // EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
+    // EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+    // EXTI_InitPeripheral(&EXTI_InitStructure);
+}
+
+static void usbhs_gpio_init(void)
+{
+    GPIO_InitType GPIO_InitStructure;
+
+    RCC_EnableAHB1PeriphClk(RCC_AHB_PERIPHEN_GPIOA | RCC_AHB_PERIPHEN_GPIOB | RCC_AHB_PERIPHEN_GPIOE, ENABLE);
+    RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_AFIO, ENABLE);
+    GPIO_ConfigPinRemap(0, 0, GPIO_RMP_SWJ_SWD);
+
+    GPIO_InitStruct(&GPIO_InitStructure);
+#ifdef USBHS_HOST
+    GPIO_InitStructure.Pin = GPIO_PIN_1;
+    GPIO_InitStructure.GPIO_Mode = GPIO_MODE_OUTPUT_PP;
+    GPIO_InitPeripheral(GPIOE, &GPIO_InitStructure);
+    GPIO_ResetBits(GPIOE, GPIO_PIN_1);
+
+    GPIO_InitStructure.Pin = GPIO_PIN_3;
+    GPIO_InitPeripheral(GPIOB, &GPIO_InitStructure);
+    GPIO_ResetBits(GPIOB, GPIO_PIN_3);
+#endif
+    // VBUS
+    //  GPIO_InitStructure.Pin = GPIO_PIN_13;
+    //  GPIO_InitStructure.GPIO_Mode = GPIO_MODE_INPUT;
+    //  GPIO_InitPeripheral(GPIOB, &GPIO_InitStructure);
+
+    //  // SOF
+    //  GPIO_InitStructure.Pin = GPIO_PIN_4;
+    //  GPIO_InitStructure.GPIO_Mode = GPIO_MODE_AF_PP;
+    //  GPIO_InitStructure.GPIO_Alternate = 8; // SOF
+    //  GPIO_InitPeripheral(GPIOA, &GPIO_InitStructure);
+
+    //  // ID
+    //  GPIO_InitStructure.Pin = GPIO_PIN_12;
+    //  GPIO_InitStructure.GPIO_Mode = GPIO_MODE_AF_PP;
+    //  GPIO_InitStructure.GPIO_Alternate = 14; // ID
+    //  GPIO_InitPeripheral(GPIOB, &GPIO_InitStructure);
+}
+
+void usb_dc_low_level_init(uint8_t busid)
+{
+    g_usb_dwc2_irq = USBD_IRQHandler;
+    g_usb_dwc2_busid = busid;
+
+    usbhs_common_init();
+
+    RCC->USBHSCTRL2 |= (uint32_t)0x01 << 19;
+    RCC->USBHSCTRL1 |= (uint32_t)0x01 << 31;
+}
+
+void usb_dc_low_level_deinit(uint8_t busid)
+{
+    NVIC_InitType NVIC_InitStructure;
+
+    NVIC_InitStructure.NVIC_IRQChannel = USB_HS_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = DISABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+    RCC_EnableAHBPeriphReset(RCC_AHBPRST_USBHSPHYRST);
+    /* Enables the USBHS peripheral clock*/
+    RCC_EnableAHBPeriphClk(RCC_AHB_PERIPHEN_USBHS, DISABLE);
+}
+
+void usb_hc_low_level_init(struct usbh_bus *bus)
+{
+    g_usb_dwc2_irq = USBH_IRQHandler;
+    g_usb_dwc2_busid = 0;
+
+    usbhs_common_init();
+
+    RCC->USBHSCTRL2 &= ~(uint32_t)0x01 << 19;
+    RCC->USBHSCTRL1 |= (uint32_t)0x01 << 31;
+}
+
+void usb_hc_low_level_deinit(struct usbh_bus *bus)
+{
+    NVIC_InitType NVIC_InitStructure;
+
+    NVIC_InitStructure.NVIC_IRQChannel = USB_HS_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = DISABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+    RCC_EnableAHBPeriphReset(RCC_AHBPRST_USBHSPHYRST);
+    /* Enables the USBHS peripheral clock*/
+    RCC_EnableAHBPeriphClk(RCC_AHB_PERIPHEN_USBHS, DISABLE);
+}
+
+uint32_t usbd_get_dwc2_gccfg_conf(uint32_t reg_base)
+{
+    return 0;
+}
+
+uint32_t usbh_get_dwc2_gccfg_conf(uint32_t reg_base)
+{
+    return 0;
+}
+
+void USB_HS_IRQHandler(void)
+{
+    g_usb_dwc2_irq(g_usb_dwc2_busid);
+}
+
+void usbd_dwc2_delay_ms(uint8_t ms)
+{
+
+}
+#endif