Ad van der Weiden / myUSBHost

Almost identical to USBHostShell; reads all endpoint descriptors

Dependents:   myBlueUSB mbed_TANK_Kinect myBlueUSB_ros myBlueUSB_localfix

MassStorage.cpp@3:58c785c2b381, 2011-07-01 (annotated)

Committer:
networker
Date:
Fri Jul 01 09:13:39 2011 +0000
Revision:
3:58c785c2b381
Parent:
0:d6bff1c2dab1 
revised massStorage to cope with different endpoint addresses

Who changed what in which revision?

UserRevisionLine numberNew contents of line
networker 0:d6bff1c2dab1 1
networker 0:d6bff1c2dab1 2 /*
networker 0:d6bff1c2dab1 3 Copyright (c) 2010 Peter Barrett
networker 0:d6bff1c2dab1 4
networker 0:d6bff1c2dab1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
networker 0:d6bff1c2dab1 6 of this software and associated documentation files (the "Software"), to deal
networker 0:d6bff1c2dab1 7 in the Software without restriction, including without limitation the rights
networker 0:d6bff1c2dab1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
networker 0:d6bff1c2dab1 9 copies of the Software, and to permit persons to whom the Software is
networker 0:d6bff1c2dab1 10 furnished to do so, subject to the following conditions:
networker 0:d6bff1c2dab1 11
networker 0:d6bff1c2dab1 12 The above copyright notice and this permission notice shall be included in
networker 0:d6bff1c2dab1 13 all copies or substantial portions of the Software.
networker 0:d6bff1c2dab1 14
networker 0:d6bff1c2dab1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
networker 0:d6bff1c2dab1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
networker 0:d6bff1c2dab1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
networker 0:d6bff1c2dab1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
networker 0:d6bff1c2dab1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
networker 0:d6bff1c2dab1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
networker 0:d6bff1c2dab1 21 THE SOFTWARE.
networker 0:d6bff1c2dab1 22 */
networker 0:d6bff1c2dab1 23
networker 0:d6bff1c2dab1 24 #include "stdlib.h"
networker 0:d6bff1c2dab1 25 #include "stdio.h"
networker 0:d6bff1c2dab1 26 #include "string.h"
networker 0:d6bff1c2dab1 27
networker 3:58c785c2b381 28 #include "MassStorage.h"
networker 0:d6bff1c2dab1 29
networker 3:58c785c2b381 30 #if 0
networker 0:d6bff1c2dab1 31 int SCSIRequestSense(int device);
networker 0:d6bff1c2dab1 32
networker 3:58c785c2b381 33 int DoSCSI(int device, const u8* cmd, int cmdLen, int flags, u8* data, u32 transferLen) {
networker 0:d6bff1c2dab1 34 CBW cbw;
networker 0:d6bff1c2dab1 35 cbw.Signature = CBW_SIGNATURE;
networker 0:d6bff1c2dab1 36 cbw.Tag = 0;
networker 0:d6bff1c2dab1 37 cbw.TransferLength = transferLen;
networker 0:d6bff1c2dab1 38 cbw.Flags = flags;
networker 0:d6bff1c2dab1 39 cbw.LUN = 0;
networker 0:d6bff1c2dab1 40 cbw.CBLength = cmdLen;
networker 0:d6bff1c2dab1 41 memset(cbw.CB,0,sizeof(cbw.CB));
networker 0:d6bff1c2dab1 42 memcpy(cbw.CB,cmd,cmdLen);
networker 0:d6bff1c2dab1 43
networker 0:d6bff1c2dab1 44 int r;
networker 3:58c785c2b381 45 //r = USBBulkTransfer(device,0x01,(u8*)&cbw,31); // Send the command
networker 3:58c785c2b381 46 r = USBBulkTransfer(device,BULK_ENDPOINT_OUT,(u8*)&cbw,31); // Send the command
networker 3:58c785c2b381 47 if (r < 0) {
networker 3:58c785c2b381 48 printf("first transfer returns %d\n", r);
networker 0:d6bff1c2dab1 49 return r;
networker 3:58c785c2b381 50 }
networker 3:58c785c2b381 51 if (data) {
networker 3:58c785c2b381 52 //r = USBBulkTransfer(device,flags | 1,data,transferLen);
networker 3:58c785c2b381 53 r = USBBulkTransfer(device,flags ? BULK_ENDPOINT_IN : BULK_ENDPOINT_OUT,data,transferLen);
networker 3:58c785c2b381 54 if (r < 0) {
networker 3:58c785c2b381 55 printf("second transfer returns %d (flags=%02xH)\n", r, flags);
networker 0:d6bff1c2dab1 56 return r;
networker 3:58c785c2b381 57 }
networker 0:d6bff1c2dab1 58 }
networker 0:d6bff1c2dab1 59
networker 0:d6bff1c2dab1 60 CSW csw;
networker 0:d6bff1c2dab1 61 csw.Signature = 0;
networker 3:58c785c2b381 62 //r = USBBulkTransfer(device,0x81,(u8*)&csw,13);
networker 3:58c785c2b381 63 r = USBBulkTransfer(device,BULK_ENDPOINT_IN,(u8*)&csw,13);
networker 3:58c785c2b381 64 if (r < 0) {
networker 3:58c785c2b381 65 printf("third transfer returns %d\n", r);
networker 0:d6bff1c2dab1 66 return r;
networker 3:58c785c2b381 67 }
networker 0:d6bff1c2dab1 68 if (csw.Signature != CSW_SIGNATURE)
networker 0:d6bff1c2dab1 69 return ERR_BAD_CSW_SIGNATURE;
networker 0:d6bff1c2dab1 70
networker 0:d6bff1c2dab1 71 // ModeSense?
networker 0:d6bff1c2dab1 72 if (csw.Status == 1 && cmd[0] != 3)
networker 0:d6bff1c2dab1 73 return SCSIRequestSense(device);
networker 0:d6bff1c2dab1 74
networker 0:d6bff1c2dab1 75 return csw.Status;
networker 0:d6bff1c2dab1 76 }
networker 0:d6bff1c2dab1 77
networker 3:58c785c2b381 78 int SCSITestUnitReady(int device) {
networker 0:d6bff1c2dab1 79 u8 cmd[6];
networker 0:d6bff1c2dab1 80 memset(cmd,0,6);
networker 0:d6bff1c2dab1 81 return DoSCSI(device,cmd,6,DEVICE_TO_HOST,0,0);
networker 0:d6bff1c2dab1 82 }
networker 0:d6bff1c2dab1 83
networker 3:58c785c2b381 84 int SCSIRequestSense(int device) {
networker 0:d6bff1c2dab1 85 u8 cmd[6] = {0x03,0,0,0,18,0};
networker 0:d6bff1c2dab1 86 u8 result[18];
networker 0:d6bff1c2dab1 87 int r = DoSCSI(device,cmd,6,DEVICE_TO_HOST,result,18);
networker 0:d6bff1c2dab1 88 return r;
networker 0:d6bff1c2dab1 89 }
networker 0:d6bff1c2dab1 90
networker 3:58c785c2b381 91 int SCSIInquiry(int device) {
networker 0:d6bff1c2dab1 92 u8 cmd[6] = {0x12,0,0,0,36,0};
networker 0:d6bff1c2dab1 93 u8 result[36+2];
networker 0:d6bff1c2dab1 94 result[36] = '\n';
networker 0:d6bff1c2dab1 95 result[37] = 0;
networker 0:d6bff1c2dab1 96 int r = DoSCSI(device,cmd,6,DEVICE_TO_HOST,result,36);
networker 0:d6bff1c2dab1 97 if (r == 0)
networker 0:d6bff1c2dab1 98 printf((const char*)result + 8);
networker 0:d6bff1c2dab1 99 return r;
networker 0:d6bff1c2dab1 100 }
networker 0:d6bff1c2dab1 101
networker 3:58c785c2b381 102 int SCSIReadCapacity(int device, u32* blockCount, u32* blockSize) {
networker 0:d6bff1c2dab1 103 u8 cmd[10] = {0x25,0,0,0,8,0,0,0,0,0};
networker 0:d6bff1c2dab1 104 u8 result[8];
networker 0:d6bff1c2dab1 105 *blockSize = 0;
networker 0:d6bff1c2dab1 106 *blockCount = 0;
networker 0:d6bff1c2dab1 107 int r = DoSCSI(device,cmd,10,DEVICE_TO_HOST,result,8);
networker 3:58c785c2b381 108 if (r == 0) {
networker 0:d6bff1c2dab1 109 *blockCount = BE32(result);
networker 0:d6bff1c2dab1 110 *blockSize = BE32(result+4);
networker 0:d6bff1c2dab1 111 }
networker 0:d6bff1c2dab1 112 return r;
networker 0:d6bff1c2dab1 113 }
networker 0:d6bff1c2dab1 114
networker 3:58c785c2b381 115 int SCSITransfer(int device, u32 blockAddr, u32 blockCount, u8* dst, u32 blockSize, int direction) {
networker 0:d6bff1c2dab1 116 // USB hardware will only do 4k per transfer
networker 3:58c785c2b381 117 while (blockCount*blockSize > 4096) {
networker 0:d6bff1c2dab1 118 int count = 4096/blockSize;
networker 0:d6bff1c2dab1 119 int r = SCSITransfer(device,blockAddr,count,dst,blockSize,direction);
networker 0:d6bff1c2dab1 120 dst += count*blockSize;
networker 0:d6bff1c2dab1 121 blockAddr += count;
networker 0:d6bff1c2dab1 122 blockCount -= count;
networker 0:d6bff1c2dab1 123 }
networker 0:d6bff1c2dab1 124
networker 0:d6bff1c2dab1 125 u8 cmd[10];
networker 0:d6bff1c2dab1 126 memset(cmd,0,10);
networker 0:d6bff1c2dab1 127 cmd[0] = (direction == DEVICE_TO_HOST) ? 0x28 : 0x2A;
networker 0:d6bff1c2dab1 128 BE32(blockAddr,cmd+2);
networker 0:d6bff1c2dab1 129 BE16(blockCount,cmd+7);
networker 0:d6bff1c2dab1 130 return DoSCSI(device,cmd,10,direction,dst,blockSize*blockCount);
networker 0:d6bff1c2dab1 131 }
networker 0:d6bff1c2dab1 132
networker 3:58c785c2b381 133 int MassStorage_ReadCapacity(int device, u32* blockCount, u32* blockSize) {
networker 3:58c785c2b381 134 int result = SCSIReadCapacity(device,blockCount,blockSize);
networker 3:58c785c2b381 135 printf("MSReadCapacity(%d) = %d, blocks=%u, blksiz=%u\n", device, result, *blockCount, *blockSize);
networker 3:58c785c2b381 136 return result;
networker 0:d6bff1c2dab1 137 }
networker 0:d6bff1c2dab1 138
networker 3:58c785c2b381 139 int MassStorage_Read(int device, u32 blockAddr, u32 blockCount, u8* dst, u32 blockSize = 512) {
networker 3:58c785c2b381 140 int result = SCSITransfer(device,blockAddr,blockCount,dst,blockSize,DEVICE_TO_HOST);
networker 3:58c785c2b381 141 printf("MSRead(%d, %u, %u, %p, %d) = %d\n", device, blockAddr, blockCount, dst, blockSize, result);
networker 3:58c785c2b381 142 return result;
networker 0:d6bff1c2dab1 143 }
networker 0:d6bff1c2dab1 144
networker 3:58c785c2b381 145 int MassStorage_Write(int device, u32 blockAddr, u32 blockCount, u8* dst, u32 blockSize = 512) {
networker 3:58c785c2b381 146 int result = SCSITransfer(device,blockAddr,blockCount,dst,blockSize,HOST_TO_DEVICE);
networker 3:58c785c2b381 147 printf("MSWrite(%d, %u, %u, %p, %d) = %d\n", device, blockAddr, blockCount, dst, blockSize, result);
networker 3:58c785c2b381 148 return result;
networker 0:d6bff1c2dab1 149 }
networker 3:58c785c2b381 150 #endif