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/*
* Copyright (c) 2024, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usb_config.h"
#include "stdint.h"
#include "usb_dwc2_reg.h"
#if 1
#error you need to modify some usb register values then use this chip
#endif
#if CONFIG_USBDEV_EP_NUM != 4 && CONFIG_USBDEV_EP_NUM != 6
#error "gd32 only has 4 endpoints for pa11/pa12 and 6 endpoints for pb14/pb15"
#endif
/* you can find this config in function:usb_core_init, file:drv_usb_core.c, for example:
*
* usb_regs->gr->GCCFG |= GCCFG_PWRON | GCCFG_VBUSACEN | GCCFG_VBUSBCEN;
*
*/
uint32_t usbd_get_dwc2_gccfg_conf(uint32_t reg_base)
{
#ifdef CONFIG_USB_HS
return 0;
#else
return ((1 << 16) | (1 << 18) | (1 << 19) | (1 << 21));
#endif
}
uint32_t usbh_get_dwc2_gccfg_conf(uint32_t reg_base)
{
#ifdef CONFIG_USB_HS
return 0;
#else
return ((1 << 16) | (1 << 18) | (1 << 19) | (1 << 21));
#endif
}
extern uint32_t SystemCoreClock;
void usbd_dwc2_delay_ms(uint8_t ms)
{
uint32_t count = SystemCoreClock / 1000 * ms;
while (count--) {
__asm volatile("nop");
}
}
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