Diff: USBDevice/TARGET_Silicon_Labs/src/em_usbdep.c

Revision:

71:53949e6131f6

Parent:

70:2c525a50f1b6

--- a/USBDevice/TARGET_Silicon_Labs/src/em_usbdep.c	Thu Jul 20 10:14:36 2017 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,446 +0,0 @@
-/**************************************************************************//**
- * @file em_usbdep.c
- * @brief USB protocol stack library, USB device endpoint handlers.
- * @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.
- *
- ******************************************************************************/
-
-#include "em_device.h"
-#if defined( USB_PRESENT ) && ( USB_COUNT == 1 )
-#include "em_usb.h"
-#if defined( USB_DEVICE )
-
-#include "em_usbtypes.h"
-#include "em_usbhal.h"
-#include "em_usbd.h"
-
-#ifdef USB_USE_PRINTF
-static const char *epStatusStr[] = {
-    "IDLE","TRANS","RECV","IN_S","OUT_S"
-};
-#endif
-
-/** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */
-
-/*
- * USBDEP_Ep0Handler() is called each time a packet has been transmitted
- * or recieved on the default endpoint.
- * A state machine navigate us through the phases of a control transfer
- * according to "chapter 9" in the USB spec.
- */
-#if !defined( USB_DOEP0INT_STUPPKTRCVD )
-void USBDEP_Ep0Handler( USBD_Device_TypeDef *device )
-{
-  int status;
-  USBD_Ep_TypeDef *ep;
-  static bool statusIn;
-  static uint32_t xferred;
-  static USB_XferCompleteCb_TypeDef callback;
-
-  ep = &device->ep[ 0 ];
-
-#ifdef __MBED__
-
-  (void)xferred;
-  (void)statusIn;
-  (void)status;
-
-  USB_PRINTF("USBDEP: ep0 %s, rem %ld, z %d\n", epStatusStr[ep->state], ep->remaining, ep->zlp);
-
-  if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
-  {
-    ep->state = D_EP_IDLE;
-
-    if ( ep->xferCompleteCb )
-    {
-      callback = ep->xferCompleteCb;
-      ep->xferCompleteCb = NULL;
-      callback( USB_STATUS_OK, ep->xferred, ep->remaining );
-    }
-
-    USBDHAL_ReenableEp0Setup(device);
-  }
-  else
-  {
-    device->callbacks->setupCmd(device->setup);
-  }
-
-#else /* not __MBED__ */
-
-  switch ( ep->state )
-  {
-    case D_EP_IDLE:
-      ep->remaining = 0;
-      ep->zlp = 0;
-      callback = NULL;
-      statusIn = false;
-
-      status = USBDCH9_SetupCmd( device );
-
-      if ( status == USB_STATUS_REQ_ERR )
-      {
-        ep->in = true;
-        USBDHAL_StallEp( ep );              /* Stall Ep0 IN                 */
-        ep->in = false;                     /* OUT for next SETUP           */
-        USBDHAL_StallEp( ep );              /* Stall Ep0 OUT                */
-        USBDHAL_ReenableEp0Setup( device ); /* Prepare for next SETUP packet*/
-      }
-      else /* ( Status == USB_STATUS_OK ) */
-      {
-        if ( (ep->state == D_EP_RECEIVING) || (ep->state == D_EP_TRANSMITTING) )
-        {
-          callback = ep->xferCompleteCb;
-        }
-
-        if ( ep->state != D_EP_RECEIVING )
-        {
-          if ( ep->remaining )
-          {
-            /* Data will be sent to host, check if a ZLP must be appended */
-            if ( ( ep->remaining < device->setup->wLength ) &&
-                 ( ep->remaining % ep->packetSize == 0    )    )
-            {
-              ep->zlp = 1;
-            }
-          }
-          else
-          {
-            /* Prepare for next SETUP packet*/
-            USBDHAL_ReenableEp0Setup( device );
-
-            /* No data stage, a ZLP may have been sent. If not, send one */
-
-            xferred = 0;
-            if ( ep->zlp == 0 )
-            {
-              USBD_Write( 0, NULL, 0, NULL );             /* ACK to host */
-              ep->state = D_EP0_IN_STATUS;
-            }
-            else
-            {
-              ep->state = D_EP_IDLE;
-              ep->in = false;                      /* OUT for next SETUP */
-            }
-          }
-        }
-      }
-      break;
-
-    case D_EP_RECEIVING:
-      if ( ep->remaining )
-      {
-        /* There is more data to receive */
-        USBD_ReArmEp0( ep );
-      }
-      else
-      {
-        status = USB_STATUS_OK;
-        if ( callback != NULL )
-        {
-          status = callback( USB_STATUS_OK, ep->xferred, 0 );
-          callback = NULL;
-        }
-
-        if ( status != USB_STATUS_OK )
-        {
-          ep->in = true;
-          USBDHAL_StallEp( ep );              /* Stall Ep0 IN                */
-          ep->in = false;                     /* OUT for next SETUP           */
-          USBDHAL_StallEp( ep );              /* Stall Ep0 OUT                */
-          USBDHAL_ReenableEp0Setup( device ); /* Prepare for next SETUP pkt. */
-          ep->state = D_EP_IDLE;
-        }
-        else /* Everything OK, send a ZLP (ACK) to host */
-        {
-          USBDHAL_ReenableEp0Setup( device );/* Prepare for next SETUP packet*/
-
-          ep->state = D_EP_IDLE;              /* USBD_Write() sets state back*/
-                                              /* to EP_TRANSMITTING          */
-          USBD_Write( 0, NULL, 0, NULL );
-          ep->state = D_EP0_IN_STATUS;
-        }
-      }
-      break;
-
-    case D_EP_TRANSMITTING:
-      if ( ep->remaining )
-      {
-        /* There is more data to transmit */
-        USBD_ReArmEp0( ep );
-      }
-      else
-      {
-        /* All data transferred, is a ZLP packet needed ? */
-        if ( ep->zlp == 1 )
-        {
-          xferred   = ep->xferred;
-          ep->state = D_EP_IDLE;          /* USBD_Write() sets state back */
-                                          /* to EP_TRANSMITTING           */
-          USBD_Write( 0, NULL, 0, NULL ); /* Send ZLP                     */
-          ep->zlp = 2;
-        }
-        else
-        {
-          if ( ep->zlp == 0 )
-          {
-            xferred = ep->xferred;
-          }
-
-          ep->state = D_EP_IDLE;
-          USBD_Read( 0, NULL, 0, NULL );  /* Get ZLP packet (ACK) from host */
-          statusIn = true;
-          ep->state = D_EP0_OUT_STATUS;
-        }
-      }
-      break;
-
-    case D_EP0_IN_STATUS:
-    case D_EP0_OUT_STATUS:
-      if ( statusIn )
-      {
-        USBDHAL_ReenableEp0Setup( device );
-      }
-
-      if ( callback != NULL )
-      {
-        callback( USB_STATUS_OK, xferred, 0 );
-      }
-
-      ep->state = D_EP_IDLE;
-      ep->in = false;                     /* OUT for next SETUP */
-      break;
-
-    default:
-      EFM_ASSERT( false );
-      break;
-  }
-#endif /* __MBED__ */
-}
-#endif
-
-#if defined( USB_DOEP0INT_STUPPKTRCVD )
-void USBDEP_Ep0Handler( USBD_Device_TypeDef *device )
-{
-  int status;
-  USBD_Ep_TypeDef *ep;
-  static uint32_t xferred;
-  static USB_XferCompleteCb_TypeDef callback;
-
-#ifdef __MBED__
-
-  (void)xferred;
-  (void)status;
-
-  ep = &device->ep[ 0 ];
-
-  if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
-  {
-    ep->state = D_EP_IDLE;
-
-    if ( ep->xferCompleteCb )
-    {
-      callback = ep->xferCompleteCb;
-      ep->xferCompleteCb = NULL;
-      callback( USB_STATUS_OK, ep->xferred, ep->remaining );
-    }
-
-    USBDHAL_StartEp0Setup( dev );
-  }
-  else
-  {
-    device->callbacks->setupCmd(device->setup);
-  }
-
-#else
-
-  ep = &device->ep[ 0 ];
-
-  switch ( ep->state )
-  {
-    case D_EP_IDLE:
-      ep->zlp       = 0;
-      ep->remaining = 0;
-      callback      = NULL;
-
-      status = USBDCH9_SetupCmd( device );
-
-      if ( status == USB_STATUS_REQ_ERR )
-      {
-        ep->in = true;
-        USBDHAL_StallEp( ep );              /* Stall Ep0 IN                 */
-        ep->in = false;                     /* OUT for next SETUP           */
-        USBDHAL_StallEp( ep );              /* Stall Ep0 OUT                */
-        USBDHAL_StartEp0Setup( dev );       /* Prepare for next SETUP packet*/
-      }
-      else /* ( Status == USB_STATUS_OK ) */
-      {
-        if ( (ep->state == D_EP_RECEIVING) || (ep->state == D_EP_TRANSMITTING) )
-        {
-          callback = ep->xferCompleteCb;
-        }
-
-        if ( ep->state != D_EP_RECEIVING )
-        {
-          if ( ep->remaining )
-          {
-            /* Data will be sent to host, check if a ZLP must be appended */
-            if ( ( ep->remaining < device->setup->wLength ) &&
-                 ( ep->remaining % ep->packetSize == 0    )    )
-            {
-              ep->zlp = 1;
-            }
-          }
-          else
-          {
-            /* No data stage, a ZLP may have been sent. If not, send one */
-            xferred = 0;
-            if ( ep->zlp == 0 )
-            {
-              ep->state = D_EP_IDLE;
-              USBD_Write( 0, NULL, 0, NULL );             /* ACK to host */
-              ep->state = D_EP0_IN_STATUS;
-            }
-          }
-        }
-      }
-      break;
-
-    case D_EP_RECEIVING:
-      if ( ep->remaining )
-      {
-        ep->in = false;
-        USBD_ReArmEp0( ep );
-      }
-      else
-      {
-        status = USB_STATUS_OK;
-        if ( callback != NULL )
-        {
-          status = callback( USB_STATUS_OK, ep->xferred, 0 );
-          callback = NULL;
-        }
-
-        if ( status != USB_STATUS_OK )
-        {
-          ep->in = true;
-          USBDHAL_StallEp( ep );              /* Stall Ep0 IN                */
-          ep->in = false;                     /* OUT for next SETUP          */
-          USBDHAL_StallEp( ep );              /* Stall Ep0 OUT               */
-          USBDHAL_StartEp0Setup( dev );       /* Prepare for next SETUP pkt. */
-          ep->state = D_EP_IDLE;
-        }
-        else
-        {
-
-          USBDHAL_StartEp0Setup( dev );      /* Prepare for next SETUP packet*/
-          ep->state = D_EP_IDLE;             /* USBD_Write() sets state back */
-                                             /* to EP_TRANSMITTING           */
-          USBD_Write( 0, NULL, 0, NULL );
-          ep->state = D_EP0_IN_STATUS;
-        }
-      }
-      break;
-
-    case D_EP_TRANSMITTING:
-      if ( ep->remaining )
-      {
-        ep->in = true;
-        USBD_ReArmEp0( ep );
-      }
-      else
-      {
-        if ( ep->zlp == 1 )
-        {
-          xferred   = ep->xferred;
-          ep->state = D_EP_IDLE;          /* USBD_Write() sets state back */
-                                          /* to EP_TRANSMITTING           */
-          USBD_Write( 0, NULL, 0, NULL ); /* Send ZLP                     */
-          ep->zlp = 2;
-        }
-        else
-        {
-          if ( ep->zlp == 0 )
-          {
-            xferred = ep->xferred;
-          }
-
-          ep->state = D_EP_IDLE;
-          USBD_Read( 0, NULL, 0, NULL );  /* Get ZLP packet (ACK) from host */
-          ep->state = D_EP0_OUT_STATUS;
-        }
-      }
-      break;
-
-    case D_EP0_IN_STATUS:
-      if ( ( USB->DOEP0CTL & USB_DOEP0CTL_EPENA ) == 0 )
-      {
-        /* Prepare for more SETUP Packets */
-        USBDHAL_StartEp0Setup( dev );
-      }
-      if ( callback != NULL )
-      {
-        callback( USB_STATUS_OK, xferred, 0 );
-      }
-      ep->state = D_EP_IDLE;
-      ep->in = false;                     /* OUT for next SETUP */
-      break;
-
-    case D_EP0_OUT_STATUS:
-      USBDHAL_StartEp0Setup( dev );       /* Prepare for more SETUP Packets */
-      if ( callback != NULL )
-      {
-        callback( USB_STATUS_OK, xferred, 0 );
-      }
-      ep->state = D_EP_IDLE;
-      ep->in = false;                     /* OUT for next SETUP */
-      break;
-  }
-#endif /* __MBED__ */
-}
-#endif
-
-/*
- * USBDEP_EpHandler() is called each time a packet has been transmitted
- * or recieved on an endpoint other than the default endpoint.
- */
-void USBDEP_EpHandler( uint8_t epAddr )
-{
-  USB_XferCompleteCb_TypeDef callback;
-  USBD_Ep_TypeDef *ep = USBD_GetEpFromAddr( epAddr );
-
-  if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
-  {
-    ep->state = D_EP_IDLE;
-    if ( ep->xferCompleteCb )
-    {
-      callback = ep->xferCompleteCb;
-      ep->xferCompleteCb = NULL;
-      callback( USB_STATUS_OK, ep->xferred, ep->remaining );
-    }
-  }
-  else
-  {
-    EFM_ASSERT( false );
-  }
-}
-
-/** @endcond */
-
-#endif /* defined( USB_DEVICE ) */
-#endif /* defined( USB_PRESENT ) && ( USB_COUNT == 1 ) */