120 lines
2.1 KiB
C
120 lines
2.1 KiB
C
// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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#include <pc/device.h>
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#include <dirent.h>
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#define MAXOPEN 4096
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typedef struct disk_t disk_t;
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typedef struct dirent dirent_t;
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struct disk_t
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{
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// disk directory
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DIR *dir;
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// open files
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int *table[MAXOPEN];
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uint opened;
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};
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#define GETDISK() \
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disk_t *disk = (disk_t *)dev->data
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//----------------------------------------------------------------------------//
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long diskdev_findnext(ctx_t *ctx, dev_t *dev)
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{
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dirent_t *ent;
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GETDISK();
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for (;;)
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{
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ent = readdir(disk->dir);
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if (ent == NULL)
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{
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rax = 0;
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return 0;
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}
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if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
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continue;
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break;
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}
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rax = copystr(ctx, ax0, ax1, ent->d_name);
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return 0;
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}
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long diskdev_findfirst(ctx_t *ctx, dev_t *dev)
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{
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GETDISK();
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rewinddir(disk->dir);
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return diskdev_findnext(ctx, dev);
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}
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//----------------------------------------------------------------------------//
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long diskdev_poweron(ctx_t *ctx, dev_t *dev)
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{
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disk_t *disk = calloc(1, sizeof(disk_t));
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disk->dir = opendir("fs");
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if (disk->dir == NULL)
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{
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logerr("diskdev: couldn't open fs directory\n");
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return -1;
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}
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dev->data = (void *)disk;
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dev->fslots[16] = diskdev_findfirst;
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dev->fslots[17] = diskdev_findnext;
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dev->state = DEVGOOD;
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return 0;
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}
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long diskdev_poweroff(ctx_t *ctx, dev_t *dev)
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{
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GETDISK();
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if (disk && disk->dir)
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closedir(disk->dir);
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if (disk)
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free(disk);
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dev->data = NULL;
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dev->state = DEVPWOF;
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return 0;
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}
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//----------------------------------------------------------------------------//
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dev_t diskdev =
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{
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.type = "disk",
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.name = "disk",
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.modl = "",
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.vend = "The OS/K Team",
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.major = KARCH_MAJOR,
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.minor = KARCH_MINOR,
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.revis = KARCH_REVIS,
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.fpwon = diskdev_poweron,
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.fpwoff = diskdev_poweroff,
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};
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