Diff: usb/UsbEndpoint2.cpp

Revision:

0:1ed23ab1345f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usb/UsbEndpoint2.cpp	Tue Jun 26 14:27:45 2012 +0000
@@ -0,0 +1,132 @@
+/*
+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"
+
+//#define __DEBUG
+//#define __DEBUG3
+//#include "dbg/dbg.h"
+#include "mydbg.h"
+
+void UsbEndpoint::UsbEndpoint_iso(UsbDevice* pDevice, uint8_t ep, bool dir, UsbEndpointType type, uint16_t size, int addr)
+{
+  m_itdActive = 0;
+  m_pEd = (volatile HCED*)usb_get_ed();
+  DBG_ASSERT(m_pEd);
+  memset((void*)m_pEd, 0, sizeof(HCED));
+  
+  m_pTdHead = NULL;
+  m_pTdTail = NULL;
+  
+  volatile HCTD* itd = (volatile HCTD*)usb_get_itd((uint32_t)this);
+  DBG_ASSERT(itd);
+  memset((void*)itd, 0, sizeof(HCITD));
+  DBG3("m_pEd =%p\n", m_pEd);
+  DBG3("itd   =%p\n", itd);
+  
+  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 */
+      ((dir?2:1) << 11)  | /* direction : Out = 1, 2 = In */
+      (1 << 15)          | /* F Format */
+      (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)itd; //Empty TD list
+  
+  DBG("Before link\n");
+  
+  //printf("\r\n--Ep Reg--\r\n");
+  //Append Ed to Ed list
+  HCCA* hcca = (HCCA*)usb_get_hcca();
+  for(int i = 0; i < 32; i++) {
+    if (hcca->IntTable[i] == 0) {
+      hcca->IntTable[i] = (uint32_t)m_pEd;
+    } else {
+      volatile HCED* nextEd = (volatile HCED*)hcca->IntTable[i];
+      while(nextEd->Next && nextEd->Next != (uint32_t)m_pEd) {
+        nextEd = (volatile HCED*)nextEd->Next;
+      }
+      nextEd->Next = (uint32_t)m_pEd;
+    }
+  }
+}
+
+// for isochronous 
+UsbErr UsbEndpoint::transfer(uint16_t frame, int count, volatile uint8_t* buf, int len)
+{
+  DBG_ASSERT(count >= 1 && count <= 8);
+  DBG_ASSERT(buf);
+  DBG_ASSERT((len % count) == 0);
+  HCITD *itd = (HCITD*)m_pEd->TailTd;
+  DBG_ASSERT(itd); 
+  HCITD *new_itd = (HCITD*)usb_get_itd((uint32_t)this);
+  DBG_ASSERT(new_itd);
+  if (itd == NULL) {
+    return USBERR_ERROR;
+  }
+  DBG("itd=%p\n", itd);
+  DBG2("new_itd=%p\n", new_itd);
+  int di = 0; //DelayInterrupt
+  itd->Control = 0xe0000000        | // CC ConditionCode NOT ACCESSED
+                 ((count-1) << 24) | // FC FrameCount
+                 TD_DELAY_INT(di)  | // DI DelayInterrupt
+                 frame;              // SF StartingFrame
+  itd->BufferPage0 = (uint32_t)buf;
+  itd->BufferEnd = (uint32_t)buf+len-1;
+  itd->Next = (uint32_t)new_itd; 
+  uint16_t offset[8];
+  for(int i = 0; i < 8; i++) {
+      uint32_t addr = (uint32_t)buf + i*(len/count);
+      offset[i] = addr & 0x0fff;
+      if ((addr&0xfffff000) == (itd->BufferEnd&0xfffff000)) {
+          offset[i] |= 0x1000;
+      }
+      offset[i] |= 0xe000;
+  }
+  itd->OffsetPSW10 = (offset[1]<<16) | offset[0];
+  itd->OffsetPSW32 = (offset[3]<<16) | offset[2];
+  itd->OffsetPSW54 = (offset[5]<<16) | offset[4];
+  itd->OffsetPSW76 = (offset[7]<<16) | offset[6];
+  m_itdActive++;
+  DBG2("itd->Control    =%08X\n", itd->Control); 
+  DBG2("itd->BufferPage0=%08X\n", itd->BufferPage0); 
+  DBG2("itd->Next       =%08X\n", itd->Next); 
+  DBG2("itd->BufferEnd  =%08X\n", itd->BufferEnd); 
+  DBG2("itd->OffsetPSW10=%08X\n", itd->OffsetPSW10); 
+  DBG2("itd->OffsetPSW32=%08X\n", itd->OffsetPSW32); 
+  DBG2("itd->OffsetPSW54=%08X\n", itd->OffsetPSW54); 
+  DBG2("itd->OffsetPSW76=%08X\n", itd->OffsetPSW76); 
+  m_pEd->TailTd = (uint32_t)new_itd; // start!!!
+  LPC_USB->HcControl |= OR_CONTROL_PLE; //Enable Periodic
+  return USBERR_PROCESSING;
+}