From 4b1656aa37f0a05c8293ebb843774331b9bdfd91 Mon Sep 17 00:00:00 2001
From: Baptiste Wicht <baptiste.wicht@gmail.com>
Date: Tue, 24 Dec 2013 15:00:01 +0100
Subject: [PATCH] Write the directory cluster back to the disk

---
 kernel/include/disks.hpp |  1 +
 kernel/src/disks.cpp     | 10 ++++++++++
 kernel/src/fat32.cpp     |  6 +++++-
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/kernel/include/disks.hpp b/kernel/include/disks.hpp
index 8e9fbe40..ec40e433 100644
--- a/kernel/include/disks.hpp
+++ b/kernel/include/disks.hpp
@@ -58,6 +58,7 @@ const char* disk_type_to_string(disk_type type);
 const char* partition_type_to_string(partition_type type);
 
 bool read_sectors(const disk_descriptor& disk, uint64_t start, uint8_t count, void* destination);
+bool write_sectors(const disk_descriptor& disk, uint64_t start, uint8_t count, void* destination);
 std::unique_heap_array<partition_descriptor> partitions(const disk_descriptor& disk);
 bool partition_exists(const disk_descriptor& disk, uint64_t uuid);
 
diff --git a/kernel/src/disks.cpp b/kernel/src/disks.cpp
index d78911e6..8ed69524 100644
--- a/kernel/src/disks.cpp
+++ b/kernel/src/disks.cpp
@@ -122,6 +122,16 @@ bool disks::read_sectors(const disk_descriptor& disk, uint64_t start, uint8_t co
     }
 }
 
+bool disks::write_sectors(const disk_descriptor& disk, uint64_t start, uint8_t count, void* destination){
+    switch(disk.type){
+        case disk_type::ATA:
+            return ata::write_sectors(*static_cast<ata::drive_descriptor*>(disk.descriptor), start, count, destination);
+
+        default:
+            return false;
+    }
+}
+
 std::unique_heap_array<disks::partition_descriptor> disks::partitions(const disk_descriptor& disk){
     std::unique_ptr<boot_record_t> boot_record(new boot_record_t());
 
diff --git a/kernel/src/fat32.cpp b/kernel/src/fat32.cpp
index 58acb445..4df91243 100644
--- a/kernel/src/fat32.cpp
+++ b/kernel/src/fat32.cpp
@@ -515,7 +515,11 @@ bool fat32::mkdir(dd disk, const disks::partition_descriptor& partition, const s
         new_directory_entry.cluster_high = 0;
         new_directory_entry.cluster_low = 0;
 
-        //TODO Write the sector to the disk
+        if(!write_sectors(disk, cluster_lba(cluster_number.second), fat_bs->sectors_per_cluster, directory_cluster.get())){
+            return false;
+        }
+
+        return true;
     }
 
     return false;