USB composite device example program, drag-and-drop flash writer.
Dependencies: SWD USBDevice mbed BaseDAP
USBMSD_Drop/RomDisk.cpp@1:ea8e179320d7, 2013-09-28 (annotated)
- Committer:
- va009039
- Date:
- Sat Sep 28 03:21:14 2013 +0000
- Revision:
- 1:ea8e179320d7
- Parent:
- RomDisk.cpp@0:2385683c867a
add USBMSD_Drop class. add CDC(Virtual COM) and HID(for example CMSIS-DAP), but KL25Z not work.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
va009039 | 1:ea8e179320d7 | 1 | // RomDisk.cpp 2013/9/26 |
va009039 | 0:2385683c867a | 2 | #include "mbed.h" |
va009039 | 0:2385683c867a | 3 | #include "RomDisk.h" |
va009039 | 0:2385683c867a | 4 | |
va009039 | 0:2385683c867a | 5 | RomDisk::RomDisk() |
va009039 | 0:2385683c867a | 6 | { |
va009039 | 0:2385683c867a | 7 | _sectors = 128; // 64KB(512*128) |
va009039 | 0:2385683c867a | 8 | } |
va009039 | 0:2385683c867a | 9 | |
va009039 | 0:2385683c867a | 10 | int RomDisk::read(uint8_t * data, uint32_t block) |
va009039 | 0:2385683c867a | 11 | { |
va009039 | 0:2385683c867a | 12 | SectorIndex* p = const_cast<SectorIndex*>(sector_index); |
va009039 | 0:2385683c867a | 13 | while(p->data) { |
va009039 | 0:2385683c867a | 14 | if (p->block == block) { |
va009039 | 0:2385683c867a | 15 | memcpy(data, p->data, 512); |
va009039 | 0:2385683c867a | 16 | return 0; |
va009039 | 0:2385683c867a | 17 | } |
va009039 | 0:2385683c867a | 18 | p++; |
va009039 | 0:2385683c867a | 19 | } |
va009039 | 0:2385683c867a | 20 | memset(data, 0x00, 512); |
va009039 | 0:2385683c867a | 21 | return 0; |
va009039 | 0:2385683c867a | 22 | } |
va009039 | 0:2385683c867a | 23 | |
va009039 | 0:2385683c867a | 24 | int RomDisk::write(const uint8_t * data, uint32_t block) |
va009039 | 0:2385683c867a | 25 | { |
va009039 | 0:2385683c867a | 26 | return 0; |
va009039 | 0:2385683c867a | 27 | } |
va009039 | 0:2385683c867a | 28 | |
va009039 | 0:2385683c867a | 29 | uint32_t RomDisk::sectors() |
va009039 | 0:2385683c867a | 30 | { |
va009039 | 0:2385683c867a | 31 | return _sectors; |
va009039 | 0:2385683c867a | 32 | } |
va009039 | 0:2385683c867a | 33 | |
va009039 | 1:ea8e179320d7 | 34 | bool RomDisk::is_fat(uint32_t sector) |
va009039 | 1:ea8e179320d7 | 35 | { |
va009039 | 1:ea8e179320d7 | 36 | return sector >= 6 && sector <= 7; |
va009039 | 1:ea8e179320d7 | 37 | } |
va009039 | 1:ea8e179320d7 | 38 | |
va009039 | 1:ea8e179320d7 | 39 | bool RomDisk::is_rootdir(uint32_t sector) |
va009039 | 0:2385683c867a | 40 | { |
va009039 | 1:ea8e179320d7 | 41 | return sector >= 8 && sector <= 15; |
va009039 | 0:2385683c867a | 42 | } |
va009039 | 1:ea8e179320d7 | 43 | |
va009039 | 1:ea8e179320d7 | 44 | int RomDisk::dir_count(uint32_t sector) |
va009039 | 1:ea8e179320d7 | 45 | { |
va009039 | 1:ea8e179320d7 | 46 | if (!is_rootdir(sector)) { |
va009039 | 1:ea8e179320d7 | 47 | return -1; |
va009039 | 1:ea8e179320d7 | 48 | } |
va009039 | 1:ea8e179320d7 | 49 | return sector - 8; |
va009039 | 1:ea8e179320d7 | 50 | } |
va009039 | 1:ea8e179320d7 | 51 | |
va009039 | 1:ea8e179320d7 | 52 | uint32_t RomDisk::cluster_to_sector(uint32_t cluster) |
va009039 | 1:ea8e179320d7 | 53 | { |
va009039 | 1:ea8e179320d7 | 54 | return cluster + 38; |
va009039 | 1:ea8e179320d7 | 55 | } |