going to try efi again

1 files changed, 48 insertions, 0 deletions

diff --git a/src/kernel/fat12.h b/src/kernel/fat12.h
new file mode 100644
index 0000000..250d877
--- /dev/null
+++ b/src/kernel/fat12.h
@@ -0,0 +1,48 @@
+/*
+Copyright 2019 Benji Dial
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS
+ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+OF THIS SOFTWARE.
+*/
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#ifndef FAT12_H
+#define FAT12_H
+
+struct bpb {
+  uint8_t jump[3];
+  uint8_t oem[8];
+  uint16_t bytes_per_sector;
+  uint8_t sectors_per_cluster;
+  uint16_t reserved_sectors;
+  uint8_t number_of_fats;
+  uint16_t root_size;
+  uint16_t short_sectors;
+  uint8_t media_type;
+  uint16_t sectors_per_fat;
+  uint16_t sectors_per_track;
+  uint16_t number_of_heads;
+  uint32_t hidden_sectors;
+  uint32_t long_sectors;
+} __attribute__ ((__packed__));
+
+struct fat12_cache {
+};
+
+bool fat12_parse_ph(uint8_t dn, uint8_t pn, uint32_t sector, uint8_t *buffer);
+
+#endif
\ No newline at end of file