1 files changed, 106 insertions, 0 deletions
diff --git a/lib/libc/src/hyra/disk.c b/lib/libc/src/hyra/disk.c
new file mode 100644
index 0000000..354ef03
--- /dev/null
+++ b/lib/libc/src/hyra/disk.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/errno.h>
+#include <sys/syscall.h>
+#include <sys/disk.h>
+
+/*
+ * Disk I/O multiplexer system call which routes
+ * various disk operations via a single call.
+ *
+ * @id: The ID of the disk to be operated on
+ * @op: Operation code
+ * @param: Operation parameters
+ *
+ * Returns the number of bytes operated on upon success,
+ * otherwise a less than zero value is returned.
+ */
+ssize_t
+__disk_io(diskid_t id, diskop_t op, const struct disk_param *param)
+{
+    if (param == NULL) {
+        return -EINVAL;
+    }
+
+    return syscall(
+        SYS_disk,
+        id,
+        op,
+        (uintptr_t)param
+    );
+}
+
+/*
+ * Performs a write operation on a specific disk
+ *
+ * @id: ID of disk to operate on
+ * @blk: Block offset to operate on
+ * @buf: Data to write
+ * @len: Number of bytes to write
+ *
+ * Returns the number of bytes written upon success, otherwise
+ * a less than zero value is returned on error.
+ */
+ssize_t
+disk_write(diskid_t id, blkoff_t blk, const void *buf, size_t len)
+{
+    struct disk_param param;
+
+    if (buf == NULL || len == 0) {
+        return -EINVAL;
+    }
+
+    disk_param_init(buf, blk, len, &param);
+    return __disk_io(id, DISK_IO_WRITE, &param);
+}
+
+/*
+ * Performs a read operation on a specific disk
+ *
+ * @id: ID of disk to operate on
+ * @blk: Block offset to operate on
+ * @buf: Buffer to read data into
+ * @len: Number of bytes to read
+ *
+ * Returns the number of bytes read upon success, otherwise
+ * a less than zero value is returned on error.
+ */
+ssize_t
+disk_read(diskid_t id, blkoff_t blk, void *buf, size_t len)
+{
+    struct disk_param param;
+
+    if (buf == NULL || len == 0) {
+        return -EINVAL;
+    }
+
+    disk_param_init(buf, blk, len, &param);
+    return __disk_io(id, DISK_IO_READ, &param);
+}