USB device stack
Dependents: mbed-mX-USB-TEST1 USBMSD_SD_HID_HelloWorld HidTest MIDI_usb_bridge ... more
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Diff: targets/TARGET_Silicon_Labs/inc/em_usbd.h
- Revision:
- 71:53949e6131f6
diff -r 2c525a50f1b6 -r 53949e6131f6 targets/TARGET_Silicon_Labs/inc/em_usbd.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_Silicon_Labs/inc/em_usbd.h Thu Jul 27 12:14:04 2017 +0100 @@ -0,0 +1,206 @@ +/***************************************************************************//** + * @file em_usbd.h + * @brief USB protocol stack library API for EFM32. + * @version 3.20.14 + ******************************************************************************* + * @section License + * <b>(C) Copyright 2014 Silicon Labs, http://www.silabs.com</b> + ******************************************************************************* + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + ******************************************************************************/ + +#ifndef __EM_USBD_H +#define __EM_USBD_H + +#include "em_device.h" +#if defined( USB_PRESENT ) && ( USB_COUNT == 1 ) +#include "em_usb.h" +#if defined( USB_DEVICE ) + +#ifdef __cplusplus +extern "C" { +#endif + +/** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */ + +#if defined( DEBUG_USB_API ) +#define DEBUG_TRACE_ABORT( x ) \ +{ \ + if ( x == USB_STATUS_EP_STALLED ) \ + { DEBUG_USB_API_PUTS( "\nEP cb(), EP stalled" ); } \ + else if ( x == USB_STATUS_EP_ABORTED ) \ + { DEBUG_USB_API_PUTS( "\nEP cb(), EP aborted" ); } \ + else if ( x == USB_STATUS_DEVICE_UNCONFIGURED ) \ + { DEBUG_USB_API_PUTS( "\nEP cb(), device unconfigured" ); } \ + else if ( x == USB_STATUS_DEVICE_SUSPENDED ) \ + { DEBUG_USB_API_PUTS( "\nEP cb(), device suspended" ); } \ + else /* ( x == USB_STATUS_DEVICE_RESET ) */ \ + { DEBUG_USB_API_PUTS( "\nEP cb(), device reset" ); } \ +} +#else +#define DEBUG_TRACE_ABORT( x ) +#endif + +extern USBD_Device_TypeDef *dev; +extern volatile bool USBD_poweredDown; + +__STATIC_INLINE void USBD_ArmEp0( USBD_Ep_TypeDef *ep ); +__STATIC_INLINE void USBD_ArmEpN( USBD_Ep_TypeDef *ep ); +__STATIC_INLINE void USBD_AbortEp( USBD_Ep_TypeDef *ep ); + +void USBD_SetUsbState( USBD_State_TypeDef newState ); + +int USBDCH9_SetupCmd( USBD_Device_TypeDef *device ); + +void USBDEP_Ep0Handler( USBD_Device_TypeDef *device ); +void USBDEP_EpHandler( uint8_t epAddr ); + +__STATIC_INLINE void USBD_ActivateAllEps( bool forceIdle ) +{ + int i; + + for ( i = 1; i <= NUM_EP_USED; i++ ) + { + USBDHAL_ActivateEp( &dev->ep[ i ], forceIdle ); + } +} + +__STATIC_INLINE void USBD_ArmEp( USBD_Ep_TypeDef *ep ) +{ + if ( ep->num == 0 ) + { + USBD_ArmEp0( ep ); + } + else + { + USBD_ArmEpN( ep ); + } +} + +__STATIC_INLINE void USBD_ArmEp0( USBD_Ep_TypeDef *ep ) +{ + if ( ep->in ) + { + if ( ep->remaining == 0 ) /* Zero Length Packet? */ + { + ep->zlp = 1; + } + + USBDHAL_SetEp0InDmaPtr( ep->buf ); + USBDHAL_StartEp0In( EFM32_MIN( ep->remaining, ep->packetSize ), + dev->ep0MpsCode ); + } + else + { + USBDHAL_SetEp0OutDmaPtr( ep->buf ); + USBDHAL_StartEp0Out( ep->packetSize, dev->ep0MpsCode ); + } +} + +__STATIC_INLINE void USBD_ArmEpN( USBD_Ep_TypeDef *ep ) +{ + if ( ep->in ) + { + USBDHAL_StartEpIn( ep ); + } + else + { + USBDHAL_StartEpOut( ep ); + } +} + +__STATIC_INLINE void USBD_DeactivateAllEps( USB_Status_TypeDef reason ) +{ + int i; + USBD_Ep_TypeDef *ep; + + for ( i = 1; i <= NUM_EP_USED; i++ ) + { + ep = &dev->ep[ i ]; + + if ( ep->state == D_EP_IDLE ) + { + USBDHAL_DeactivateEp( ep ); + } + } + + USBDHAL_AbortAllTransfers( reason ); +} + +__STATIC_INLINE USBD_Ep_TypeDef *USBD_GetEpFromAddr( uint8_t epAddr ) +{ + int epIndex; + USBD_Ep_TypeDef *ep = NULL; + + if ( epAddr & USB_SETUP_DIR_MASK ) + { + epIndex = dev->inEpAddr2EpIndex[ epAddr & USB_EPNUM_MASK ]; + } + else + { + epIndex = dev->outEpAddr2EpIndex[ epAddr & USB_EPNUM_MASK ]; + } + + if ( epIndex ) + { + ep = &dev->ep[ epIndex ]; + } + else if ( ( epAddr & USB_EPNUM_MASK ) == 0 ) + { + ep = &dev->ep[ 0 ]; + } + + return ep; +} + +__STATIC_INLINE void USBD_ReArmEp0( USBD_Ep_TypeDef *ep ) +{ + if ( ep->in ) + { + USBDHAL_StartEp0In( EFM32_MIN( ep->remaining, ep->packetSize ), + dev->ep0MpsCode ); + } + else + { + USBDHAL_StartEp0Out( ep->packetSize, dev->ep0MpsCode ); + } +} + +__STATIC_INLINE void USBD_AbortEp( USBD_Ep_TypeDef *ep ) +{ + if ( ep->state == D_EP_IDLE ) + { + return; + } + + if ( ep->in ) + { + USBDHAL_AbortEpIn( ep ); + } + else + { + USBDHAL_AbortEpOut( ep ); + } +} + +/** @endcond */ + +#ifdef __cplusplus +} +#endif + +#endif /* defined( USB_DEVICE ) */ +#endif /* defined( USB_PRESENT ) && ( USB_COUNT == 1 ) */ +#endif /* __EM_USBD_H */