usb_mem.h

00001 /*
00002 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
00003  
00004 Permission is hereby granted, free of charge, to any person obtaining a copy
00005 of this software and associated documentation files (the "Software"), to deal
00006 in the Software without restriction, including without limitation the rights
00007 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008 copies of the Software, and to permit persons to whom the Software is
00009 furnished to do so, subject to the following conditions:
00010  
00011 The above copyright notice and this permission notice shall be included in
00012 all copies or substantial portions of the Software.
00013  
00014 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020 THE SOFTWARE.
00021 */
00022 
00023 #ifndef USB_MEM_H
00024 #define USB_MEM_H
00025 
00026 #ifdef __cplusplus
00027 extern "C" {
00028 #endif
00029 
00030 typedef unsigned char byte;
00031 
00032 void usb_mem_init();
00033 
00034 volatile byte* usb_get_hcca();
00035 
00036 volatile byte* usb_get_ed();
00037 
00038 volatile byte* usb_get_td(uint32_t endpoint);
00039 volatile byte* usb_get_itd(uint32_t endpoint);
00040 
00041 volatile byte* usb_get_bp(int size);
00042 int usb_bp_size();
00043 
00044 void usb_free_ed(volatile byte* ed);
00045 
00046 void usb_free_td(volatile byte* td);
00047 
00048 void usb_free_itd(volatile byte* itd);
00049 
00050 void usb_free_bp(volatile byte* bp);
00051 
00052 bool usb_is_td(volatile byte* td);
00053 bool usb_is_itd(volatile byte* td);
00054 
00055 #ifdef __cplusplus
00056 }
00057 #endif
00058 
00059 #endif