bathfire
176 lines
3.4 KiB
C
176 lines
3.4 KiB
C
/**
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******************************************************************************
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* @file usb_otg.c
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* @author MCD Application Team
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* @version V2.0.0
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* @date 22-July-2011
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* @brief OTG Core Layer
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******************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*
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* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "usb_defines.h"
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#include "usb_regs.h"
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#include "usb_core.h"
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#include "usb_otg.h"
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/** @addtogroup USB_OTG_DRIVER
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* @{
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*/
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/** @defgroup USB_OTG
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* @brief This file is the interface between EFSL ans Host mass-storage class
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* @{
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*/
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/** @defgroup USB_OTG_Private_Defines
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USB_OTG_Private_TypesDefinitions
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USB_OTG_Private_Macros
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USB_OTG_Private_Variables
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup USB_OTG_Private_FunctionPrototypes
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* @{
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*/
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static uint32_t USB_OTG_Read_itr(USB_OTG_CORE_HANDLE *pdev);
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/**
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* @}
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*/
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/** @defgroup USB_OTG_Private_Functions
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* @{
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*/
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/* OTG Interrupt Handler */
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/**
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* @brief STM32_USBO_OTG_ISR_Handler
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*
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* @param None
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* @retval : None
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*/
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uint32_t STM32_USBO_OTG_ISR_Handler(USB_OTG_CORE_HANDLE *pdev)
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{
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uint32_t retval = 0;
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USB_OTG_GINTSTS_TypeDef gintsts ;
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gintsts.d32 = 0;
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gintsts.d32 = USB_OTG_Read_itr(pdev);
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if (gintsts.d32 == 0)
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{
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return 0;
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}
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if (gintsts.b.otgintr)
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{
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retval |= 1;//USB_OTG_HandleOTG_ISR(pdev);
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}
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if (gintsts.b.conidstschng)
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{
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retval |= 2;//USB_OTG_HandleConnectorIDStatusChange_ISR(pdev);
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}
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if (gintsts.b.sessreqintr)
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{
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retval |= 3;//USB_OTG_HandleSessionRequest_ISR(pdev);
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}
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return retval;
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}
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/**
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* @brief USB_OTG_Read_itr
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* returns the Core Interrupt register
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* @param None
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* @retval : status
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*/
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static uint32_t USB_OTG_Read_itr(USB_OTG_CORE_HANDLE *pdev)
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{
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USB_OTG_GINTSTS_TypeDef gintsts;
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USB_OTG_GINTMSK_TypeDef gintmsk;
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USB_OTG_GINTMSK_TypeDef gintmsk_common;
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gintsts.d32 = 0;
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gintmsk.d32 = 0;
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gintmsk_common.d32 = 0;
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/* OTG interrupts */
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gintmsk_common.b.sessreqintr = 1;
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gintmsk_common.b.conidstschng = 1;
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gintmsk_common.b.otgintr = 1;
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gintsts.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTSTS);
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gintmsk.d32 = USB_OTG_READ_REG32(&pdev->regs.GREGS->GINTMSK);
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return ((gintsts.d32 & gintmsk.d32 ) & gintmsk_common.d32);
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}
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/**
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* @brief USB_OTG_GetCurrentState
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* Return current OTG State
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* @param None
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* @retval : None
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*/
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uint32_t USB_OTG_GetCurrentState (USB_OTG_CORE_HANDLE *pdev)
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{
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return pdev->otg.OTG_State;
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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