Norimasa Okamoto / Mbed 2 deprecated USBMSD_LPC_HelloWorld

USB composite device example program, drag-and-drop flash writer.

Dependencies:   SWD USBDevice mbed BaseDAP

tests/RamDisk.cpp@1:ea8e179320d7, 2013-09-28 (annotated)

Committer:
va009039
Date:
Sat Sep 28 03:21:14 2013 +0000
Revision:
1:ea8e179320d7
Parent:
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?

UserRevisionLine numberNew contents of line
va009039 1:ea8e179320d7 1 // RamDisk.cpp 2013/9/21
va009039 0:2385683c867a 2 #include "mbed.h"
va009039 0:2385683c867a 3 #include "RamDisk.h"
va009039 1:ea8e179320d7 4 #include "mydebug.h"
va009039 0:2385683c867a 5
va009039 1:ea8e179320d7 6 RamDisk::RamDisk() : _head(NULL), use_size(0)
va009039 0:2385683c867a 7 {
va009039 0:2385683c867a 8 _sectors = 128; // 64KB(512*128)
va009039 0:2385683c867a 9 }
va009039 0:2385683c867a 10
va009039 0:2385683c867a 11 int RamDisk::read(uint8_t * data, uint32_t block)
va009039 0:2385683c867a 12 {
va009039 1:ea8e179320d7 13 //DBG("block=%d", block);
va009039 0:2385683c867a 14 SectorData* p = find(block);
va009039 0:2385683c867a 15 if (p) {
va009039 0:2385683c867a 16 memcpy(data, p->data, 512);
va009039 0:2385683c867a 17 return 0;
va009039 0:2385683c867a 18 }
va009039 0:2385683c867a 19 memset(data, 0x00, 512);
va009039 0:2385683c867a 20 return 0;
va009039 0:2385683c867a 21 }
va009039 0:2385683c867a 22
va009039 0:2385683c867a 23 static bool is_blank(const uint8_t* data)
va009039 0:2385683c867a 24 {
va009039 0:2385683c867a 25 for(int i = 0; i < 512; i++) {
va009039 0:2385683c867a 26 if (data[i]) {
va009039 0:2385683c867a 27 return false;
va009039 0:2385683c867a 28 }
va009039 0:2385683c867a 29 }
va009039 0:2385683c867a 30 return true;
va009039 0:2385683c867a 31 }
va009039 0:2385683c867a 32
va009039 0:2385683c867a 33 int RamDisk::write(const uint8_t * data, uint32_t block)
va009039 0:2385683c867a 34 {
va009039 0:2385683c867a 35 SectorData* p = find(block);
va009039 0:2385683c867a 36 if (p) {
va009039 1:ea8e179320d7 37 DBG("update block=%d", block);
va009039 0:2385683c867a 38 memcpy(p->data, data, 512);
va009039 0:2385683c867a 39 return 0;
va009039 0:2385683c867a 40 }
va009039 0:2385683c867a 41 if (is_blank(data)) {
va009039 0:2385683c867a 42 return 0;
va009039 0:2385683c867a 43 }
va009039 1:ea8e179320d7 44 DBG("new block=%d", block);
va009039 0:2385683c867a 45 p = new SectorData;
va009039 1:ea8e179320d7 46 TEST_ASSERT(p);
va009039 0:2385683c867a 47 p->block = block;
va009039 0:2385683c867a 48 memcpy(p->data, data, 512);
va009039 0:2385683c867a 49 p->next = _head;
va009039 0:2385683c867a 50 _head = p;
va009039 1:ea8e179320d7 51 use_size += 512;
va009039 1:ea8e179320d7 52 //DBG("use_size: %d", use_size);
va009039 1:ea8e179320d7 53 TEST_ASSERT(use_size < (512*16));
va009039 0:2385683c867a 54 return 0;
va009039 0:2385683c867a 55 }
va009039 0:2385683c867a 56
va009039 0:2385683c867a 57 uint32_t RamDisk::sectors()
va009039 0:2385683c867a 58 {
va009039 0:2385683c867a 59 return _sectors;
va009039 0:2385683c867a 60 }
va009039 0:2385683c867a 61
va009039 0:2385683c867a 62 SectorData* RamDisk::find(uint16_t block)
va009039 0:2385683c867a 63 {
va009039 0:2385683c867a 64 SectorData* p = _head;
va009039 0:2385683c867a 65 while(p) {
va009039 0:2385683c867a 66 if (p->block == block) {
va009039 0:2385683c867a 67 break;
va009039 0:2385683c867a 68 }
va009039 0:2385683c867a 69 p = p->next;
va009039 0:2385683c867a 70 }
va009039 0:2385683c867a 71 return p;
va009039 0:2385683c867a 72 }
va009039 0:2385683c867a 73
va009039 0:2385683c867a 74 void RamDisk::exportData(Stream* pc)
va009039 0:2385683c867a 75 {
va009039 0:2385683c867a 76 pc->printf("\n\n\n\n\n");
va009039 0:2385683c867a 77 SectorData* p = _head;
va009039 0:2385683c867a 78 while(p) {
va009039 0:2385683c867a 79 pc->printf("const uint8_t sector_%d[] = {\n", p->block);
va009039 0:2385683c867a 80 for(int i = 0; i < 512; i++) {
va009039 0:2385683c867a 81 pc->printf("0x%02x,", p->data[i]);
va009039 0:2385683c867a 82 if (i%16 == 15) {
va009039 0:2385683c867a 83 pc->printf("\n");
va009039 0:2385683c867a 84 }
va009039 0:2385683c867a 85 }
va009039 0:2385683c867a 86 pc->printf("};\n");
va009039 0:2385683c867a 87 p = p->next;
va009039 0:2385683c867a 88 }
va009039 0:2385683c867a 89
va009039 0:2385683c867a 90 pc->printf("const SectorIndex sector_index[] = {\n");
va009039 0:2385683c867a 91 p = _head;
va009039 0:2385683c867a 92 while(p) {
va009039 0:2385683c867a 93 pc->printf("{%d, sector_%d},\n", p->block, p->block);
va009039 0:2385683c867a 94 p = p->next;
va009039 0:2385683c867a 95 }
va009039 0:2385683c867a 96 pc->printf("{-1, NULL},\n");
va009039 0:2385683c867a 97 pc->printf("};\n");
va009039 0:2385683c867a 98 pc->printf("\n\n\n\n\n");
va009039 0:2385683c867a 99 }