/**
* @brief Initializes the USB Core
* @param USBx: USB Instance
* @param cfg : pointer to a USB_OTG_CfgTypeDef structure that contains
* the configuration information for the specified USBx peripheral.
* @retval HAL status
*/
HAL_StatusTypeDef USB_CoreInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
{
if (cfg.phy_itface == USB_OTG_ULPI_PHY)
{
USBx->GCCFG &= ~(USB_OTG_GCCFG_PWRDWN);
/**************************************************************
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if(cfg.Sof_enable == 1)
{
USBx->GCCFG |= USB_OTG_GCCFG_SOFOUTEN;
}
/**************************************************************
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**************************************************************/
/* Init The ULPI Interface */
/**************************************************************
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**************************************************************/
//USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_TSDPS | USB_OTG_GUSBCFG_ULPIFSLS | USB_OTG_GUSBCFG_PHYSEL);
USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_TSDPS | USB_OTG_GUSBCFG_ULPIFSLS | USB_OTG_GUSBCFG_PHYSEL | USB_OTG_GUSBCFG_ULPICSM);
/**************************************************************
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**************************************************************/
/* Select vbus source */
USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_ULPIEVBUSD | USB_OTG_GUSBCFG_ULPIEVBUSI);
if(cfg.use_external_vbus == 1)
{
USBx->GUSBCFG |= USB_OTG_GUSBCFG_ULPIEVBUSD;
}
/* Reset after a PHY select */
USB_CoreReset(USBx);
}
else /* FS interface (embedded Phy) */
{
/* Select FS Embedded PHY */
USBx->GUSBCFG |= USB_OTG_GUSBCFG_PHYSEL;
/* Reset after a PHY select and set Host mode */
USB_CoreReset(USBx);
/* Deactivate the power down*/
USBx->GCCFG = USB_OTG_GCCFG_PWRDWN;
}
if(cfg.dma_enable == ENABLE)
{
USBx->GAHBCFG |= (USB_OTG_GAHBCFG_HBSTLEN_1 | USB_OTG_GAHBCFG_HBSTLEN_2);
USBx->GAHBCFG |= USB_OTG_GAHBCFG_DMAEN;
}
return HAL_OK;
}
/**
* @brief Initializes the USB Core
* @param USBx: USB Instance
* @param cfg: pointer to a USB_OTG_CfgTypeDef structure that contains
* the configuration information for the specified USBx peripheral.
* @retval HAL status
*/
HAL_StatusTypeDef USB_CoreInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
{
/* Select FS Embedded PHY */
USBx->GUSBCFG |= USB_OTG_GUSBCFG_PHYSEL;
/* Reset after a PHY select and set Host mode */
USB_CoreReset(USBx);
/* Deactivate the power down*/
USBx->GCCFG = USB_OTG_GCCFG_PWRDWN;
/* Enable srpcap*/
USBx->GUSBCFG |= USB_OTG_GUSBCFG_SRPCAP;
return HAL_OK;
}
