From 63167f223e1f54910f6b80e698390ee60aec79ee Mon Sep 17 00:00:00 2001 From: Benji Dial Date: Tue, 11 Aug 2020 11:33:21 -0400 Subject: lots of progress currently, BAR fields of IDE drives are all returning zero, and the ATA read function isn't working. i'm not sure why. i'm going to work on VESA next, and come back to the IDE driver later --- src/kernel/drive.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 src/kernel/drive.c (limited to 'src/kernel/drive.c') diff --git a/src/kernel/drive.c b/src/kernel/drive.c new file mode 100644 index 0000000..bf27ec6 --- /dev/null +++ b/src/kernel/drive.c @@ -0,0 +1,38 @@ +#include "drive.h" +#include "fat.h" +#include "panic.h" + +uint8_t n_drives = 0; +struct drive drives[256]; + +drive_file_id_t unknown_get_file(struct drive *d, char *path) { + return 0; +} + +void unknown_free_file(struct drive *d, drive_file_id_t fid) { + panic("Free file called on unknown file system"); +} + +void unknown_load_sector(struct drive *d, drive_file_id_t fid, uint32_t sector, void *at) { + panic("Load sector called on unknown file system"); +} + +uint32_t unknown_get_free_sectors(struct drive *d) { + return d->n_sectors; +} + +void determine_fs(struct drive *d) { + if (try_fat_init_drive(d)) + return; + + d->fs_type = "Unknown"; + d->get_file = &unknown_get_file; + d->free_file = &unknown_free_file; + d->load_sector = &unknown_load_sector; + d->get_free_sectors = &unknown_get_free_sectors; +} + +void commit_drive(struct drive data) { + determine_fs(&data); + drives[n_drives++] = data; +} \ No newline at end of file -- cgit v1.2.3