Simon Ford / NetServices

Version of http://mbed.org/cookbook/NetServicesTribute with setting set the same for LPC2368

Dependents:   UDPSocketExample 24LCxx_I2CApp WeatherPlatform_pachube HvZServerLib ... more

drv/usb/usb_mem.c@0:350011bf8be7, 2010-11-23 (annotated)

Committer:
simon
Date:
Tue Nov 23 14:15:36 2010 +0000
Revision:
0:350011bf8be7
Experimental version for testing UDP

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon 0:350011bf8be7 1
simon 0:350011bf8be7 2 /*
simon 0:350011bf8be7 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
simon 0:350011bf8be7 4
simon 0:350011bf8be7 5 Permission is hereby granted, free of charge, to any person obtaining a copy
simon 0:350011bf8be7 6 of this software and associated documentation files (the "Software"), to deal
simon 0:350011bf8be7 7 in the Software without restriction, including without limitation the rights
simon 0:350011bf8be7 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
simon 0:350011bf8be7 9 copies of the Software, and to permit persons to whom the Software is
simon 0:350011bf8be7 10 furnished to do so, subject to the following conditions:
simon 0:350011bf8be7 11
simon 0:350011bf8be7 12 The above copyright notice and this permission notice shall be included in
simon 0:350011bf8be7 13 all copies or substantial portions of the Software.
simon 0:350011bf8be7 14
simon 0:350011bf8be7 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
simon 0:350011bf8be7 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
simon 0:350011bf8be7 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
simon 0:350011bf8be7 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
simon 0:350011bf8be7 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
simon 0:350011bf8be7 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
simon 0:350011bf8be7 21 THE SOFTWARE.
simon 0:350011bf8be7 22 */
simon 0:350011bf8be7 23
simon 0:350011bf8be7 24 #include "usb_mem.h"
simon 0:350011bf8be7 25
simon 0:350011bf8be7 26 #include "string.h" //For memcpy, memmove, memset
simon 0:350011bf8be7 27
simon 0:350011bf8be7 28 #include "netCfg.h"
simon 0:350011bf8be7 29 #if NET_USB
simon 0:350011bf8be7 30
simon 0:350011bf8be7 31 #define EDS_COUNT 4
simon 0:350011bf8be7 32 #define TDS_COUNT 8
simon 0:350011bf8be7 33
simon 0:350011bf8be7 34 #define HCCA_SIZE 0x100
simon 0:350011bf8be7 35 #define ED_SIZE 0x10
simon 0:350011bf8be7 36 #define TD_SIZE 0x10
simon 0:350011bf8be7 37
simon 0:350011bf8be7 38 #define TOTAL_SIZE (HCCA_SIZE + (EDS_COUNT*ED_SIZE) + (TDS_COUNT*TD_SIZE))
simon 0:350011bf8be7 39
simon 0:350011bf8be7 40
simon 0:350011bf8be7 41 static volatile __align(256) byte usb_buf[TOTAL_SIZE] __attribute((section("AHBSRAM1"),aligned)); //256 bytes aligned!
simon 0:350011bf8be7 42
simon 0:350011bf8be7 43 static volatile byte* usb_hcca; //256 bytes aligned!
simon 0:350011bf8be7 44
simon 0:350011bf8be7 45 static volatile byte* usb_edBuf; //4 bytes aligned!
simon 0:350011bf8be7 46 static volatile byte* usb_tdBuf; //4 bytes aligned!
simon 0:350011bf8be7 47
simon 0:350011bf8be7 48 static byte usb_edBufAlloc[EDS_COUNT] __attribute((section("AHBSRAM1"),aligned));
simon 0:350011bf8be7 49 static byte usb_tdBufAlloc[TDS_COUNT] __attribute((section("AHBSRAM1"),aligned));
simon 0:350011bf8be7 50
simon 0:350011bf8be7 51 void usb_mem_init()
simon 0:350011bf8be7 52 {
simon 0:350011bf8be7 53 usb_hcca = usb_buf;
simon 0:350011bf8be7 54 usb_edBuf = usb_buf + HCCA_SIZE;
simon 0:350011bf8be7 55 usb_tdBuf = usb_buf + HCCA_SIZE + (EDS_COUNT*ED_SIZE);
simon 0:350011bf8be7 56 memset(usb_edBufAlloc, 0, EDS_COUNT);
simon 0:350011bf8be7 57 memset(usb_tdBufAlloc, 0, TDS_COUNT);
simon 0:350011bf8be7 58 }
simon 0:350011bf8be7 59
simon 0:350011bf8be7 60 volatile byte* usb_get_hcca()
simon 0:350011bf8be7 61 {
simon 0:350011bf8be7 62 return usb_hcca;
simon 0:350011bf8be7 63 }
simon 0:350011bf8be7 64
simon 0:350011bf8be7 65 volatile byte* usb_get_ed()
simon 0:350011bf8be7 66 {
simon 0:350011bf8be7 67 int i;
simon 0:350011bf8be7 68 for(i = 0; i < EDS_COUNT; i++)
simon 0:350011bf8be7 69 {
simon 0:350011bf8be7 70 if( !usb_edBufAlloc[i] )
simon 0:350011bf8be7 71 {
simon 0:350011bf8be7 72 usb_edBufAlloc[i] = 1;
simon 0:350011bf8be7 73 return usb_edBuf + i*ED_SIZE;
simon 0:350011bf8be7 74 }
simon 0:350011bf8be7 75 }
simon 0:350011bf8be7 76 return NULL; //Could not alloc ED
simon 0:350011bf8be7 77 }
simon 0:350011bf8be7 78
simon 0:350011bf8be7 79 volatile byte* usb_get_td()
simon 0:350011bf8be7 80 {
simon 0:350011bf8be7 81 int i;
simon 0:350011bf8be7 82 for(i = 0; i < TDS_COUNT; i++)
simon 0:350011bf8be7 83 {
simon 0:350011bf8be7 84 if( !usb_tdBufAlloc[i] )
simon 0:350011bf8be7 85 {
simon 0:350011bf8be7 86 usb_tdBufAlloc[i] = 1;
simon 0:350011bf8be7 87 return usb_tdBuf + i*TD_SIZE;
simon 0:350011bf8be7 88 }
simon 0:350011bf8be7 89 }
simon 0:350011bf8be7 90 return NULL; //Could not alloc TD
simon 0:350011bf8be7 91 }
simon 0:350011bf8be7 92
simon 0:350011bf8be7 93 void usb_free_ed(volatile byte* ed)
simon 0:350011bf8be7 94 {
simon 0:350011bf8be7 95 int i;
simon 0:350011bf8be7 96 i = (ed - usb_edBuf) / ED_SIZE;
simon 0:350011bf8be7 97 usb_edBufAlloc[i] = 0;
simon 0:350011bf8be7 98 }
simon 0:350011bf8be7 99
simon 0:350011bf8be7 100 void usb_free_td(volatile byte* td)
simon 0:350011bf8be7 101 {
simon 0:350011bf8be7 102 int i;
simon 0:350011bf8be7 103 i = (td - usb_tdBuf) / TD_SIZE;
simon 0:350011bf8be7 104 usb_tdBufAlloc[i] = 0;
simon 0:350011bf8be7 105 }
simon 0:350011bf8be7 106
simon 0:350011bf8be7 107
simon 0:350011bf8be7 108 #endif