Diff: drv/usb/usb_mem.c

Revision:

12:8dc6b255af6c

Parent:

11:da4498f591ee

--- a/drv/usb/usb_mem.c	Thu Aug 05 15:01:33 2010 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,108 +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 "usb_mem.h"
-
-#include "string.h" //For memcpy, memmove, memset
-
-#include "netCfg.h"
-#if NET_USB
-
-#define EDS_COUNT 4
-#define TDS_COUNT 8
-
-#define HCCA_SIZE 0x100
-#define ED_SIZE 0x10
-#define TD_SIZE 0x10
-
-#define TOTAL_SIZE (HCCA_SIZE + (EDS_COUNT*ED_SIZE) + (TDS_COUNT*TD_SIZE))
-
-
-static volatile __align(256) byte usb_buf[TOTAL_SIZE] __attribute((section("AHBSRAM1"),aligned));  //256 bytes aligned!
-
-static volatile byte* usb_hcca;  //256 bytes aligned!
-
-static volatile byte* usb_edBuf;  //4 bytes aligned!
-static volatile byte* usb_tdBuf;  //4 bytes aligned!
-
-static byte usb_edBufAlloc[EDS_COUNT] __attribute((section("AHBSRAM1"),aligned));
-static byte usb_tdBufAlloc[TDS_COUNT] __attribute((section("AHBSRAM1"),aligned));
-
-void usb_mem_init()
-{
-  usb_hcca = usb_buf;
-  usb_edBuf = usb_buf + HCCA_SIZE;
-  usb_tdBuf = usb_buf + HCCA_SIZE + (EDS_COUNT*ED_SIZE);
-  memset(usb_edBufAlloc, 0, EDS_COUNT);
-  memset(usb_tdBufAlloc, 0, TDS_COUNT);
-}
-
-volatile byte* usb_get_hcca()
-{
-  return usb_hcca;
-}
-
-volatile byte* usb_get_ed()
-{
-  int i;
-  for(i = 0; i < EDS_COUNT; i++)
-  {
-    if( !usb_edBufAlloc[i] )
-    {
-      usb_edBufAlloc[i] = 1;
-      return usb_edBuf + i*ED_SIZE;
-    }
-  }
-  return NULL; //Could not alloc ED
-}
-
-volatile byte* usb_get_td()
-{
-  int i;
-  for(i = 0; i < TDS_COUNT; i++)
-  {
-    if( !usb_tdBufAlloc[i] )
-    {
-      usb_tdBufAlloc[i] = 1;
-      return usb_tdBuf + i*TD_SIZE;
-    }
-  }
-  return NULL; //Could not alloc TD
-}
-
-void usb_free_ed(volatile byte* ed)
-{
-  int i;
-  i = (ed - usb_edBuf) / ED_SIZE;
-  usb_edBufAlloc[i] = 0;
-}
-
-void usb_free_td(volatile byte* td)
-{
-  int i;
-  i = (td - usb_tdBuf) / TD_SIZE;
-  usb_tdBufAlloc[i] = 0;
-}
-
-
-#endif