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26410ad8de
Additions to note; PIOS_SPI, DosFS and PIOS_SDCARD. git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@136 ebee16cc-31ac-478f-84a7-5cbb03baadba
127 lines
2.6 KiB
C
127 lines
2.6 KiB
C
#include "dosfs.h"
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#include "pios.h"
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#include "minGlue.h"
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/* TODO: Use global filesystem mounting */
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/* TODO: Implement error handling properly */
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static uint8_t Sector[SECTOR_SIZE];
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static VOLINFO vi;
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static uint32_t pstart, psize;
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static uint8_t pactive, ptype;
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static uint32_t successcount;
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int dosfs_ini_openread(const char *filename, PFILEINFO file)
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{
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pstart = DFS_GetPtnStart(0, Sector, 0, &pactive, &ptype, &psize);
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if (pstart == 0xffffffff) {
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/* Cannot find first partition */
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return 0;
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}
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if(DFS_GetVolInfo(0, Sector, pstart, &vi) != DFS_OK) {
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/* No volume information */
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return 0;
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}
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if(DFS_OpenFile(&vi, (uint8_t *)filename, DFS_READ, Sector, file)) {
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/* Error opening file */
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return 0;
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}
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/* No errors */
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return 1;
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}
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int dosfs_ini_openwrite(const char *filename, PFILEINFO file)
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{
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pstart = DFS_GetPtnStart(0, Sector, 0, &pactive, &ptype, &psize);
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if (pstart == 0xffffffff) {
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/* Cannot find first partition */
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return 0;
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}
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if(DFS_GetVolInfo(0, Sector, pstart, &vi) != DFS_OK) {
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/* No volume information */
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return 0;
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}
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if(DFS_OpenFile(&vi, (uint8_t *)filename, DFS_WRITE, Sector, file)) {
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/* Error opening file */
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return 0;
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}
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/* No errors */
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return 1;
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}
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int dosfs_ini_close(PFILEINFO file)
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{
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/* This doesn't actually do anything */
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DFS_Close(file);
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/* No errors */
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return 1;
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}
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int dosfs_ini_read(char *buffer, int size, PFILEINFO file)
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{
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DFS_ReadFile(file, Sector, (uint8_t *)buffer, &successcount, size);
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if(successcount == size) {
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/* No errors */
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return 1;
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} else {
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/* Reached EOF */
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return 0;
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}
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}
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int dosfs_ini_write(char *buffer, PFILEINFO file)
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{
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/* TODO: Check this works */
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DFS_WriteFile(file, Sector, (uint8_t *)buffer, &successcount, sizeof(buffer));
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/* No errors */
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return 1;
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}
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int dosfs_ini_rename(const char *source, const char *dest)
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{
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/* TODO: Implement, or just don't, since we aren't planning on using renaming */
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/* No errors */
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return 1;
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}
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int dosfs_ini_remove(const char *filename)
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{
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VOLINFO vi;
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uint32_t pstart, psize;
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uint8_t pactive, ptype;
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pstart = DFS_GetPtnStart(0, Sector, 0, &pactive, &ptype, &psize);
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if (pstart == 0xffffffff) {
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/* Cannot find first partition */
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return 0;
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}
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if(DFS_GetVolInfo(0, Sector, pstart, &vi) != DFS_OK) {
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/* No volume information */
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return 0;
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}
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/* Remove the file */
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DFS_UnlinkFile(&vi, (uint8_t *)filename, Sector);
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/* No errors */
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return 1;
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}
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int dosfs_ini_rewind(PFILEINFO file)
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{
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DFS_Seek(file, 0, Sector);
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/* No errors */
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return 1;
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}
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