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?
User | Revision | Line number | New 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 |