UsbEndpoint.h

00001 
00002 /*
00003 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
00004  
00005 Permission is hereby granted, free of charge, to any person obtaining a copy
00006 of this software and associated documentation files (the "Software"), to deal
00007 in the Software without restriction, including without limitation the rights
00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00009 copies of the Software, and to permit persons to whom the Software is
00010 furnished to do so, subject to the following conditions:
00011  
00012 The above copyright notice and this permission notice shall be included in
00013 all copies or substantial portions of the Software.
00014  
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00021 THE SOFTWARE.
00022 */
00023 
00024 #ifndef USB_ENDPOINT_H
00025 #define USB_ENDPOINT_H
00026 
00027 #include "mbed.h"
00028 #include "USBHostLite/usbhost_inc.h"
00029 
00030 typedef int32_t RC;
00031 
00032 class EdPool
00033 {
00034 public:
00035   EdPool(int size);
00036   ~EdPool();
00037   HCED* get();
00038 private:
00039   uint8_t* m_pool;
00040   int m_pos;
00041 
00042 };
00043 
00044 class TdPool
00045 {
00046 public:
00047   TdPool(int size);
00048   ~TdPool();
00049   HCTD* get();
00050 private:
00051   uint8_t* m_pool;
00052   int m_pos;
00053 
00054 };
00055 
00056 class UsbEndpoint
00057 {
00058 public:
00059   UsbEndpoint( /* UsbDevice*, */ uint8_t ep, bool dir, uint16_t size );
00060   ~UsbEndpoint();
00061 
00062   RC transfer(volatile uint8_t* buf, uint32_t len); 
00063   
00064   RC status(); 
00065   
00066 //static void completed(){}
00067 
00068 private:
00069   EdPool m_edPool;
00070   TdPool m_tdPool;
00071   
00072   bool m_dir;
00073   
00074   bool m_done;
00075   
00076   uint32_t m_len;
00077   
00078   volatile uint8_t* m_pBufStartPtr;
00079 
00080   volatile HCED* m_pEd; //Ep descriptor
00081   volatile HCTD* m_pTdHead; //Head trf descriptor
00082   volatile HCTD* m_pTdTail; //Tail trf descriptor
00083   
00084   //static volatile HCED* m_pNextEd;
00085   
00086 };
00087 
00088 #endif