lots of new stuff. new memory manager, some stuff on file plumbing

1 files changed, 36 insertions, 0 deletions

diff --git a/src/kernel/diskio.c b/src/kernel/diskio.c
new file mode 100644
index 0000000..bd08136
--- /dev/null
+++ b/src/kernel/diskio.c
@@ -0,0 +1,36 @@
+/*
+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 "diskio.h"
+
+uint32_t read_sectors(uint8_t drive, uint32_t start, uint32_t count, void *buffer) {
+  if ((drive >= 26) || !(drives[drive].flags & DISK_IN))
+    return 0;
+  return 0;//TODO
+}
+
+uint32_t write_sectors(uint8_t drive, uint32_t start, uint32_t count, void *buffer) {
+  if ((drive >= 26) || !(drives[drive].flags & DISK_IN))
+    return 0;
+  return 0;//TODO
+}
+
+void update_status(uint8_t drive) {
+  //TODO
+}