FBI FRATER / Mbed 2 deprecated InetTest

Dependencies:   mbed

NetServices/drv/usb/usb_mem.c@0:4edb816d21e1, 2015-10-16 (annotated)

Committer:
ICTFBI
Date:
Fri Oct 16 14:28:26 2015 +0000
Revision:
0:4edb816d21e1
Pre-update 16-10-15

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ICTFBI 0:4edb816d21e1 1
ICTFBI 0:4edb816d21e1 2 /*
ICTFBI 0:4edb816d21e1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
ICTFBI 0:4edb816d21e1 4
ICTFBI 0:4edb816d21e1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
ICTFBI 0:4edb816d21e1 6 of this software and associated documentation files (the "Software"), to deal
ICTFBI 0:4edb816d21e1 7 in the Software without restriction, including without limitation the rights
ICTFBI 0:4edb816d21e1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ICTFBI 0:4edb816d21e1 9 copies of the Software, and to permit persons to whom the Software is
ICTFBI 0:4edb816d21e1 10 furnished to do so, subject to the following conditions:
ICTFBI 0:4edb816d21e1 11
ICTFBI 0:4edb816d21e1 12 The above copyright notice and this permission notice shall be included in
ICTFBI 0:4edb816d21e1 13 all copies or substantial portions of the Software.
ICTFBI 0:4edb816d21e1 14
ICTFBI 0:4edb816d21e1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ICTFBI 0:4edb816d21e1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ICTFBI 0:4edb816d21e1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ICTFBI 0:4edb816d21e1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ICTFBI 0:4edb816d21e1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ICTFBI 0:4edb816d21e1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ICTFBI 0:4edb816d21e1 21 THE SOFTWARE.
ICTFBI 0:4edb816d21e1 22 */
ICTFBI 0:4edb816d21e1 23
ICTFBI 0:4edb816d21e1 24 #include "usb_mem.h"
ICTFBI 0:4edb816d21e1 25
ICTFBI 0:4edb816d21e1 26 #include "string.h" //For memcpy, memmove, memset
ICTFBI 0:4edb816d21e1 27
ICTFBI 0:4edb816d21e1 28 #include "netCfg.h"
ICTFBI 0:4edb816d21e1 29 #if NET_USB
ICTFBI 0:4edb816d21e1 30
ICTFBI 0:4edb816d21e1 31 #define EDS_COUNT 4
ICTFBI 0:4edb816d21e1 32 #define TDS_COUNT 8
ICTFBI 0:4edb816d21e1 33
ICTFBI 0:4edb816d21e1 34 #define HCCA_SIZE 0x100
ICTFBI 0:4edb816d21e1 35 #define ED_SIZE 0x10
ICTFBI 0:4edb816d21e1 36 #define TD_SIZE 0x10
ICTFBI 0:4edb816d21e1 37
ICTFBI 0:4edb816d21e1 38 #define TOTAL_SIZE (HCCA_SIZE + (EDS_COUNT*ED_SIZE) + (TDS_COUNT*TD_SIZE))
ICTFBI 0:4edb816d21e1 39
ICTFBI 0:4edb816d21e1 40
ICTFBI 0:4edb816d21e1 41 static volatile __align(256) byte usb_buf[TOTAL_SIZE] __attribute((section("AHBSRAM1"),aligned)); //256 bytes aligned!
ICTFBI 0:4edb816d21e1 42
ICTFBI 0:4edb816d21e1 43 static volatile byte* usb_hcca; //256 bytes aligned!
ICTFBI 0:4edb816d21e1 44
ICTFBI 0:4edb816d21e1 45 static volatile byte* usb_edBuf; //4 bytes aligned!
ICTFBI 0:4edb816d21e1 46 static volatile byte* usb_tdBuf; //4 bytes aligned!
ICTFBI 0:4edb816d21e1 47
ICTFBI 0:4edb816d21e1 48 static byte usb_edBufAlloc[EDS_COUNT] __attribute((section("AHBSRAM1"),aligned));
ICTFBI 0:4edb816d21e1 49 static byte usb_tdBufAlloc[TDS_COUNT] __attribute((section("AHBSRAM1"),aligned));
ICTFBI 0:4edb816d21e1 50
ICTFBI 0:4edb816d21e1 51 void usb_mem_init()
ICTFBI 0:4edb816d21e1 52 {
ICTFBI 0:4edb816d21e1 53 usb_hcca = usb_buf;
ICTFBI 0:4edb816d21e1 54 usb_edBuf = usb_buf + HCCA_SIZE;
ICTFBI 0:4edb816d21e1 55 usb_tdBuf = usb_buf + HCCA_SIZE + (EDS_COUNT*ED_SIZE);
ICTFBI 0:4edb816d21e1 56 memset(usb_edBufAlloc, 0, EDS_COUNT);
ICTFBI 0:4edb816d21e1 57 memset(usb_tdBufAlloc, 0, TDS_COUNT);
ICTFBI 0:4edb816d21e1 58 }
ICTFBI 0:4edb816d21e1 59
ICTFBI 0:4edb816d21e1 60 volatile byte* usb_get_hcca()
ICTFBI 0:4edb816d21e1 61 {
ICTFBI 0:4edb816d21e1 62 return usb_hcca;
ICTFBI 0:4edb816d21e1 63 }
ICTFBI 0:4edb816d21e1 64
ICTFBI 0:4edb816d21e1 65 volatile byte* usb_get_ed()
ICTFBI 0:4edb816d21e1 66 {
ICTFBI 0:4edb816d21e1 67 int i;
ICTFBI 0:4edb816d21e1 68 for(i = 0; i < EDS_COUNT; i++)
ICTFBI 0:4edb816d21e1 69 {
ICTFBI 0:4edb816d21e1 70 if( !usb_edBufAlloc[i] )
ICTFBI 0:4edb816d21e1 71 {
ICTFBI 0:4edb816d21e1 72 usb_edBufAlloc[i] = 1;
ICTFBI 0:4edb816d21e1 73 return usb_edBuf + i*ED_SIZE;
ICTFBI 0:4edb816d21e1 74 }
ICTFBI 0:4edb816d21e1 75 }
ICTFBI 0:4edb816d21e1 76 return NULL; //Could not alloc ED
ICTFBI 0:4edb816d21e1 77 }
ICTFBI 0:4edb816d21e1 78
ICTFBI 0:4edb816d21e1 79 volatile byte* usb_get_td()
ICTFBI 0:4edb816d21e1 80 {
ICTFBI 0:4edb816d21e1 81 int i;
ICTFBI 0:4edb816d21e1 82 for(i = 0; i < TDS_COUNT; i++)
ICTFBI 0:4edb816d21e1 83 {
ICTFBI 0:4edb816d21e1 84 if( !usb_tdBufAlloc[i] )
ICTFBI 0:4edb816d21e1 85 {
ICTFBI 0:4edb816d21e1 86 usb_tdBufAlloc[i] = 1;
ICTFBI 0:4edb816d21e1 87 return usb_tdBuf + i*TD_SIZE;
ICTFBI 0:4edb816d21e1 88 }
ICTFBI 0:4edb816d21e1 89 }
ICTFBI 0:4edb816d21e1 90 return NULL; //Could not alloc TD
ICTFBI 0:4edb816d21e1 91 }
ICTFBI 0:4edb816d21e1 92
ICTFBI 0:4edb816d21e1 93 void usb_free_ed(volatile byte* ed)
ICTFBI 0:4edb816d21e1 94 {
ICTFBI 0:4edb816d21e1 95 int i;
ICTFBI 0:4edb816d21e1 96 i = (ed - usb_edBuf) / ED_SIZE;
ICTFBI 0:4edb816d21e1 97 usb_edBufAlloc[i] = 0;
ICTFBI 0:4edb816d21e1 98 }
ICTFBI 0:4edb816d21e1 99
ICTFBI 0:4edb816d21e1 100 void usb_free_td(volatile byte* td)
ICTFBI 0:4edb816d21e1 101 {
ICTFBI 0:4edb816d21e1 102 int i;
ICTFBI 0:4edb816d21e1 103 i = (td - usb_tdBuf) / TD_SIZE;
ICTFBI 0:4edb816d21e1 104 usb_tdBufAlloc[i] = 0;
ICTFBI 0:4edb816d21e1 105 }
ICTFBI 0:4edb816d21e1 106
ICTFBI 0:4edb816d21e1 107
ICTFBI 0:4edb816d21e1 108 #endif