Diff: usb/UsbEndpoint.cpp

Revision:

1:b657594559be

Parent:

0:1ed23ab1345f

Child:

2:871b41f4789e

--- a/usb/UsbEndpoint.cpp	Tue Jun 26 14:27:45 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,373 +0,0 @@
-
-/*
-Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
- 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
- 
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
- 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-#include "UsbEndpoint.h"
-#include "UsbDevice.h"
-#include "usb_mem.h"
-#include "Usb_td.h"
-#include "netCfg.h"
-#if NET_USB
-
-//#define __DEBUG
-//#define __DEBUG3
-//#include "dbg/dbg.h"
-#include "mydbg.h"
-
-UsbEndpoint::UsbEndpoint( UsbDevice* pDevice, uint8_t ep, bool dir, UsbEndpointType type, uint16_t size, int addr /*= -1*/ ) 
-: m_pDevice(pDevice), m_result(true), m_status((int)USBERR_OK), m_len(0), m_pBufStartPtr(NULL),
-  m_pCbItem(NULL), m_pCbMeth(NULL)
-{
-  if (type == USB_ISO) {
-      UsbEndpoint_iso(pDevice, ep, dir, type, size, addr);
-      return;
-  }
-
-  m_pEd = (volatile HCED*)usb_get_ed();
-  DBG_ASSERT(m_pEd);
-  memset((void*)m_pEd, 0, sizeof(HCED));
-  
-  m_pTdHead = (volatile HCTD*)usb_get_td((uint32_t)this);
-  DBG_ASSERT(m_pTdHead);
-  m_pTdTail = (volatile HCTD*)usb_get_td((uint32_t)this);
-  DBG_ASSERT(m_pTdTail);
-  DBG("m_pEd    =%p\n", m_pEd);
-  DBG("m_pTdHead=%p\n", m_pTdHead);
-  DBG("m_pTdTail=%p\n", m_pTdTail);
-  
-  if(addr == -1)
-    addr = pDevice->m_addr;
-  
-  //Setup Ed
-  //printf("\r\n--Ep Setup--\r\n");
-  m_pEd->Control =  addr        |      /* USB address           */
-  ((ep & 0x7F) << 7)            |      /* Endpoint address      */
-  (type!=USB_CONTROL?((dir?2:1) << 11):0)             |      /* direction : Out = 1, 2 = In */
-  (size << 16);     /* MaxPkt Size           */
-  DBG3("m_pEd->Control=%08X\n", m_pEd->Control);
-  m_dir = dir;
-  m_setup = false;
-  m_type = type;
-  
-  m_pEd->TailTd = m_pEd->HeadTd = (uint32_t) m_pTdTail; //Empty TD list
-  
-  DBG("Before link\n");
-  
-  //printf("\r\n--Ep Reg--\r\n");
-  //Append Ed to Ed list
-  HCCA* hcca;
-  //volatile HCED* nextEd;
-  DBG("m_type=%d\n", m_type);
-  switch( m_type )
-  {
-  case USB_CONTROL:
-    m_pEd->Next = LPC_USB->HcControlHeadED;
-    LPC_USB->HcControlHeadED = (uint32_t)m_pEd;
-    return;
-
-  case USB_BULK:
-    m_pEd->Next = LPC_USB->HcBulkHeadED;
-    LPC_USB->HcBulkHeadED = (uint32_t)m_pEd;
-    return;
-
-  case USB_INT:
-    hcca = (HCCA*)usb_get_hcca();
-    m_pEd->Next = hcca->IntTable[0];
-    hcca->IntTable[0] = (uint32_t)m_pEd;
-    return;
-  
-  default:
-    DBG_ASSERT(0);
-  }
-}
-
-
-UsbEndpoint::~UsbEndpoint()
-{
-  DBG_ASSERT(0);
-
-  m_pEd->Control |= ED_SKIP; //Skip this Ep in queue
-
-  //Remove from queue
-  volatile HCED* prevEd;
-  HCCA* hcca;
-  switch( m_type )
-  {
-  case USB_CONTROL:
-    prevEd = (volatile HCED*) LPC_USB->HcControlHeadED;
-    break;
-  case USB_BULK:
-    prevEd = (volatile HCED*) LPC_USB->HcBulkHeadED;
-    break;
-  case USB_INT:
-    hcca = (HCCA*)usb_get_hcca();
-    prevEd = (volatile HCED*)hcca->IntTable[0];
-    break;
-  default:
-    DBG_ASSERT(0);
-  }
-  if( m_pEd == prevEd )
-  {
-    switch( m_type )
-    {
-    case USB_CONTROL:
-      LPC_USB->HcControlHeadED = m_pEd->Next;
-      break;
-    case USB_BULK:
-      LPC_USB->HcBulkHeadED = m_pEd->Next;
-      break;
-    case USB_INT:
-      hcca = (HCCA*)usb_get_hcca();
-      hcca->IntTable[0] = m_pEd->Next;
-      break;
-    default:
-      DBG_ASSERT(0);
-    }
-    LPC_USB->HcBulkHeadED = m_pEd->Next;
-  }
-  else
-  {
-    while( prevEd->Next != (uint32_t) m_pEd )
-    {
-      prevEd = (volatile HCED*) prevEd->Next;
-    }
-    prevEd->Next = m_pEd->Next;
-  }
-  
-  //
-  usb_free_ed((volatile byte*)m_pEd);
-  
-  usb_free_td((volatile byte*)m_pTdHead);
-  usb_free_td((volatile byte*)m_pTdTail);
-}
-
-void UsbEndpoint::setNextToken(uint32_t token) //Only for control Eps
-{
-  switch(token)
-  {
-    case TD_SETUP:
-      m_dir = false;
-      m_setup = true;
-      break;
-    case TD_IN:
-      m_dir = true;
-      m_setup = false;
-      break;
-    case TD_OUT:
-      m_dir = false;
-      m_setup = false;
-      break;
-  }
-}
-
-UsbErr UsbEndpoint::transfer(volatile uint8_t* buf, uint32_t len)
-{
-  DBG("buf=%p\n", buf);
-  if(!m_result)
-    return USBERR_BUSY; //The previous trasnfer is not completed 
-    //FIXME: We should be able to queue the next transfer, still needs to be implemented
-  
-  if( !m_pDevice->connected() )
-    return USBERR_DISCONNECTED;
-  
-  m_result = false;
-  
-  volatile uint32_t token = (m_setup?TD_SETUP:(m_dir?TD_IN:TD_OUT));
-
-  volatile uint32_t td_toggle;
-  if (m_type == USB_CONTROL)
-  {
-    if (m_setup)
-    {
-      td_toggle = TD_TOGGLE_0;
-    }
-    else
-    {
-      td_toggle = TD_TOGGLE_1;
-    }
-  }
-  else
-  {
-    td_toggle = 0;
-  }
-
-  //Swap Tds
-  volatile HCTD* pTdSwap;
-  pTdSwap = m_pTdTail;
-  m_pTdTail = m_pTdHead;
-  m_pTdHead = pTdSwap;
-
-  m_pTdHead->Control = (TD_ROUNDING    |
-                       token           |
-                       TD_DELAY_INT(0) |//7
-                       td_toggle       |
-                       TD_CC);
-
-  m_pTdTail->Control = 0;
-  m_pTdHead->CurrBufPtr   = (uint32_t) buf;
-  m_pBufStartPtr = buf;
-  m_pTdTail->CurrBufPtr   = 0;
-  m_pTdHead->Next         = (uint32_t) m_pTdTail;
-  m_pTdTail->Next         = 0;
-  m_pTdHead->BufEnd       = (uint32_t)(buf + (len - 1));
-  m_pTdTail->BufEnd       = 0;
-  
-  m_pEd->HeadTd  = (uint32_t)m_pTdHead | ((m_pEd->HeadTd) & 0x00000002); //Carry bit
-  m_pEd->TailTd  = (uint32_t)m_pTdTail;
-  
-  //DBG("m_pEd->HeadTd = %08x\n", m_pEd->HeadTd);
-
-  if(m_type == USB_CONTROL) {
-    LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_CLF;
-    LPC_USB->HcControl       = LPC_USB->HcControl       | OR_CONTROL_CLE; //Enable control list
-  } else if (m_type == USB_BULK) { //USB_BULK
-    LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_BLF;
-    LPC_USB->HcControl       = LPC_USB->HcControl       | OR_CONTROL_BLE; //Enable bulk list
-  } else if (m_type == USB_INT) { // USB_INT
-    LPC_USB->HcControl       = LPC_USB->HcControl       | OR_CONTROL_PLE; //Enable Periodic
-  } else { // USB_ISO
-    DBG_ASSERT(0);
-  }
-  
-  //m_done = false;
-  m_len = len;
-
-  return USBERR_PROCESSING;
- 
-}
-
-int UsbEndpoint::status()
-{
-  if( !m_pDevice->connected() )
-  {
-    if(!m_result)
-      onCompletion();
-    m_result = true;
-    return (int)USBERR_DISCONNECTED;
-  }
-  else if( !m_result )
-  { 
-    return (int)USBERR_PROCESSING;
-  }
-  /*else if( m_done )
-  {
-    return (int)USBERR_OK;
-  }*/
-  else
-  {
-    return m_status;
-  }
-}
-
-void UsbEndpoint::updateAddr(int addr)
-{
-  DBG("m_pEd->Control = %08x\n", m_pEd->Control);
-  m_pEd->Control &= ~0x7F;
-  m_pEd->Control |= addr;
-  DBG("m_pEd->Control = %08x\n", m_pEd->Control);
-}
-
-void UsbEndpoint::updateSize(uint16_t size)
-{
-  DBG("m_pEd->Control = %08x\n", m_pEd->Control);
-  m_pEd->Control &= ~0x3FF0000;
-  m_pEd->Control |= (size << 16);
-  DBG("m_pEd->Control = %08x\n", m_pEd->Control);
-}
-
-#if 0 //For doc only
-template <class T>
-void UsbEndpoint::setOnCompletion( T* pCbItem, void (T::*pCbMeth)() )
-{
-  m_pCbItem = (CDummy*) pCbItem;
-  m_pCbMeth = (void (CDummy::*)()) pCbMeth;
-}
-#endif
-
-void UsbEndpoint::onCompletion()
-{
-  DBG_ASSERT(m_type != USB_ISO);
-  DBG_ASSERT(m_pTdHead);
-  //DBG("Transfer completed\n");
-  if( m_pTdHead->Control >> 28  )
-  {
-    DBG("TD Failed with condition code %01x\n", m_pTdHead->Control >> 28 );
-    m_status = (int)USBERR_TDFAIL;
-  }
-  else if( m_pEd->HeadTd & 0x1 )
-  {
-    m_pEd->HeadTd = m_pEd->HeadTd & ~0x1;
-    DBG("\r\nHALTED!!\r\n");
-    m_status = (int)USBERR_HALTED;
-  }
-  else if( (m_pEd->HeadTd & ~0xF) == (uint32_t) m_pTdTail )
-  {
-    //Done
-    int len;
-    DBG("m_pEp=%p\n", m_pEd);
-    DBG("m_pTdHead->CurrBufPtr=%08x\n", (uint32_t)m_pTdHead->CurrBufPtr);
-    DBG("m_pBufStartPtr=%08x\n", (uint32_t) m_pBufStartPtr);
-    if(m_pTdHead->CurrBufPtr)
-      len = m_pTdHead->CurrBufPtr - (uint32_t) m_pBufStartPtr;
-    else
-      len = m_len;
-    /*if(len == 0) //Packet transfered completely
-      len = m_len;*/
-    //m_done = true;
-    DBG("Transfered %d bytes\n", len);
-    m_status = len; 
-  }
-  else
-  {
-    DBG("Unknown error...\n");
-    m_status = (int)USBERR_ERROR;
-  }
-  m_result = true;
-  if(m_pCbItem && m_pCbMeth)
-    (m_pCbItem->*m_pCbMeth)();
-}
-
-
- 
-void UsbEndpoint::sOnCompletion(uint32_t pTd)
-{
-    HCTD* td = td_reverse((HCTD*)pTd);
-    while(td) {
-        HCTD* next = (HCTD*)td->Next;
-        HCUTD* utd = (HCUTD*)td;
-        UsbEndpoint* pEp = (UsbEndpoint*)utd->UsbEndpoint;
-        DBG_ASSERT(pEp);
-        if (usb_is_itd((byte*)td)) {
-            HCITD* itd = (HCITD*)td;
-            DBG_ASSERT(pEp->m_type == USB_ISO);
-            pEp->queue_done_itd.push(itd);
-        } else {
-            DBG_ASSERT(pEp->m_pTdHead == td);
-            if(pEp->m_pTdHead == td) { // found?
-                pEp->onCompletion();
-            }
-        }
-        td = next;
-    }
-}
-
-#endif