Peter Barrett
A more capable USB Host. The API supports synchronous and Asynchronous control, interrupt and bulk transfers. It has built in support for hubs and hot plugging. It can support any number of devices and endpoints limited only by sram. The test shell supports mouse, keyboard and mass storage/fat.
main.cpp@0:5ad808014a49, 2010-04-02 (annotated)
- Committer:
- peterbarrett1967
- Date:
- Fri Apr 02 22:28:01 2010 +0000
- Revision:
- 0:5ad808014a49
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| peterbarrett1967 | 0:5ad808014a49 | 1 | /* |
| peterbarrett1967 | 0:5ad808014a49 | 2 | Copyright (c) 2010 Peter Barrett |
| peterbarrett1967 | 0:5ad808014a49 | 3 | |
| peterbarrett1967 | 0:5ad808014a49 | 4 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| peterbarrett1967 | 0:5ad808014a49 | 5 | of this software and associated documentation files (the "Software"), to deal |
| peterbarrett1967 | 0:5ad808014a49 | 6 | in the Software without restriction, including without limitation the rights |
| peterbarrett1967 | 0:5ad808014a49 | 7 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| peterbarrett1967 | 0:5ad808014a49 | 8 | copies of the Software, and to permit persons to whom the Software is |
| peterbarrett1967 | 0:5ad808014a49 | 9 | furnished to do so, subject to the following conditions: |
| peterbarrett1967 | 0:5ad808014a49 | 10 | |
| peterbarrett1967 | 0:5ad808014a49 | 11 | The above copyright notice and this permission notice shall be included in |
| peterbarrett1967 | 0:5ad808014a49 | 12 | all copies or substantial portions of the Software. |
| peterbarrett1967 | 0:5ad808014a49 | 13 | |
| peterbarrett1967 | 0:5ad808014a49 | 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| peterbarrett1967 | 0:5ad808014a49 | 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| peterbarrett1967 | 0:5ad808014a49 | 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| peterbarrett1967 | 0:5ad808014a49 | 17 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| peterbarrett1967 | 0:5ad808014a49 | 18 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| peterbarrett1967 | 0:5ad808014a49 | 19 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| peterbarrett1967 | 0:5ad808014a49 | 20 | THE SOFTWARE. |
| peterbarrett1967 | 0:5ad808014a49 | 21 | */ |
| peterbarrett1967 | 0:5ad808014a49 | 22 | |
| peterbarrett1967 | 0:5ad808014a49 | 23 | #include "mbed.h" |
| peterbarrett1967 | 0:5ad808014a49 | 24 | #include "USBHost.h" |
| peterbarrett1967 | 0:5ad808014a49 | 25 | #include "Utils.h" |
| peterbarrett1967 | 0:5ad808014a49 | 26 | #include "FATFileSystem.h" |
| peterbarrett1967 | 0:5ad808014a49 | 27 | |
| peterbarrett1967 | 0:5ad808014a49 | 28 | int MassStorage_ReadCapacity(int device, u32* blockCount, u32* blockSize); |
| peterbarrett1967 | 0:5ad808014a49 | 29 | int MassStorage_Read(int device, u32 blockAddr, u32 blockCount, u8* dst, u32 blockSize); |
| peterbarrett1967 | 0:5ad808014a49 | 30 | int MassStorage_Write(int device, u32 blockAddr, u32 blockCount, u8* dst, u32 blockSize); |
| peterbarrett1967 | 0:5ad808014a49 | 31 | |
| peterbarrett1967 | 0:5ad808014a49 | 32 | class USBFileSystem : public FATFileSystem |
| peterbarrett1967 | 0:5ad808014a49 | 33 | { |
| peterbarrett1967 | 0:5ad808014a49 | 34 | int _device; |
| peterbarrett1967 | 0:5ad808014a49 | 35 | u32 _blockSize; |
| peterbarrett1967 | 0:5ad808014a49 | 36 | u32 _blockCount; |
| peterbarrett1967 | 0:5ad808014a49 | 37 | |
| peterbarrett1967 | 0:5ad808014a49 | 38 | public: |
| peterbarrett1967 | 0:5ad808014a49 | 39 | USBFileSystem() : FATFileSystem("usb"),_device(0),_blockSize(0),_blockCount(0) |
| peterbarrett1967 | 0:5ad808014a49 | 40 | { |
| peterbarrett1967 | 0:5ad808014a49 | 41 | } |
| peterbarrett1967 | 0:5ad808014a49 | 42 | |
| peterbarrett1967 | 0:5ad808014a49 | 43 | void SetDevice(int device) |
| peterbarrett1967 | 0:5ad808014a49 | 44 | { |
| peterbarrett1967 | 0:5ad808014a49 | 45 | _device = device; |
| peterbarrett1967 | 0:5ad808014a49 | 46 | } |
| peterbarrett1967 | 0:5ad808014a49 | 47 | |
| peterbarrett1967 | 0:5ad808014a49 | 48 | virtual int disk_initialize() |
| peterbarrett1967 | 0:5ad808014a49 | 49 | { |
| peterbarrett1967 | 0:5ad808014a49 | 50 | return MassStorage_ReadCapacity(_device,&_blockCount,&_blockSize); |
| peterbarrett1967 | 0:5ad808014a49 | 51 | } |
| peterbarrett1967 | 0:5ad808014a49 | 52 | |
| peterbarrett1967 | 0:5ad808014a49 | 53 | virtual int disk_write(const char *buffer, int block_number) |
| peterbarrett1967 | 0:5ad808014a49 | 54 | { |
| peterbarrett1967 | 0:5ad808014a49 | 55 | return MassStorage_Write(_device,block_number,1,(u8*)buffer,_blockSize); |
| peterbarrett1967 | 0:5ad808014a49 | 56 | } |
| peterbarrett1967 | 0:5ad808014a49 | 57 | |
| peterbarrett1967 | 0:5ad808014a49 | 58 | virtual int disk_read(char *buffer, int block_number) |
| peterbarrett1967 | 0:5ad808014a49 | 59 | { |
| peterbarrett1967 | 0:5ad808014a49 | 60 | return MassStorage_Read(_device,block_number,1,(u8*)buffer,_blockSize); |
| peterbarrett1967 | 0:5ad808014a49 | 61 | } |
| peterbarrett1967 | 0:5ad808014a49 | 62 | |
| peterbarrett1967 | 0:5ad808014a49 | 63 | virtual int disk_sectors() |
| peterbarrett1967 | 0:5ad808014a49 | 64 | { |
| peterbarrett1967 | 0:5ad808014a49 | 65 | return _blockCount; |
| peterbarrett1967 | 0:5ad808014a49 | 66 | } |
| peterbarrett1967 | 0:5ad808014a49 | 67 | }; |
| peterbarrett1967 | 0:5ad808014a49 | 68 | |
| peterbarrett1967 | 0:5ad808014a49 | 69 | Serial pc(USBTX, USBRX); |
| peterbarrett1967 | 0:5ad808014a49 | 70 | |
| peterbarrett1967 | 0:5ad808014a49 | 71 | void DumpFS(int depth, int count) |
| peterbarrett1967 | 0:5ad808014a49 | 72 | { |
| peterbarrett1967 | 0:5ad808014a49 | 73 | DIR *d = opendir("/usb"); |
| peterbarrett1967 | 0:5ad808014a49 | 74 | if (!d) |
| peterbarrett1967 | 0:5ad808014a49 | 75 | { |
| peterbarrett1967 | 0:5ad808014a49 | 76 | printf("USB file system borked\n"); |
| peterbarrett1967 | 0:5ad808014a49 | 77 | return; |
| peterbarrett1967 | 0:5ad808014a49 | 78 | } |
| peterbarrett1967 | 0:5ad808014a49 | 79 | |
| peterbarrett1967 | 0:5ad808014a49 | 80 | printf("\nDumping root dir\n"); |
| peterbarrett1967 | 0:5ad808014a49 | 81 | struct dirent *p; |
| peterbarrett1967 | 0:5ad808014a49 | 82 | while ((p = readdir(d))) |
| peterbarrett1967 | 0:5ad808014a49 | 83 | { |
| peterbarrett1967 | 0:5ad808014a49 | 84 | int len = sizeof( dirent); |
| peterbarrett1967 | 0:5ad808014a49 | 85 | printf("%s %d\n", p->d_name, len); |
| peterbarrett1967 | 0:5ad808014a49 | 86 | } |
| peterbarrett1967 | 0:5ad808014a49 | 87 | closedir(d); |
| peterbarrett1967 | 0:5ad808014a49 | 88 | } |
| peterbarrett1967 | 0:5ad808014a49 | 89 | |
| peterbarrett1967 | 0:5ad808014a49 | 90 | int OnDiskInsert(int device) |
| peterbarrett1967 | 0:5ad808014a49 | 91 | { |
| peterbarrett1967 | 0:5ad808014a49 | 92 | USBFileSystem fs; |
| peterbarrett1967 | 0:5ad808014a49 | 93 | fs.SetDevice(device); |
| peterbarrett1967 | 0:5ad808014a49 | 94 | DumpFS(0,0); |
| peterbarrett1967 | 0:5ad808014a49 | 95 | return 0; |
| peterbarrett1967 | 0:5ad808014a49 | 96 | } |
| peterbarrett1967 | 0:5ad808014a49 | 97 | |
| peterbarrett1967 | 0:5ad808014a49 | 98 | /* |
| peterbarrett1967 | 0:5ad808014a49 | 99 | Simple test shell to exercise mouse,keyboard,mass storage and hubs. |
| peterbarrett1967 | 0:5ad808014a49 | 100 | Add 2 15k pulldown resistors between D+/D- and ground, attach a usb socket and have at it. |
| peterbarrett1967 | 0:5ad808014a49 | 101 | */ |
| peterbarrett1967 | 0:5ad808014a49 | 102 | |
| peterbarrett1967 | 0:5ad808014a49 | 103 | int main() |
| peterbarrett1967 | 0:5ad808014a49 | 104 | { |
| peterbarrett1967 | 0:5ad808014a49 | 105 | pc.baud(460800); |
| peterbarrett1967 | 0:5ad808014a49 | 106 | printf("USBShell\nNow get a bunch of usb things and plug them in\n"); |
| peterbarrett1967 | 0:5ad808014a49 | 107 | USBInit(); |
| peterbarrett1967 | 0:5ad808014a49 | 108 | for (;;) |
| peterbarrett1967 | 0:5ad808014a49 | 109 | USBLoop(); |
| peterbarrett1967 | 0:5ad808014a49 | 110 | } |