libc: disk: Implement disk_query() interface

Introduce a libc disk_query() to invoke the query operation of specific
disks via __disk_io()

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/lib/libc/src/hyra/disk.c b/lib/libc/src/hyra/disk.c
index c3bf2ef..c7c7930 100644
--- a/lib/libc/src/hyra/disk.c
+++ b/lib/libc/src/hyra/disk.c
@@ -104,3 +104,22 @@ disk_read(diskid_t id, blkoff_t blk, void *buf, size_t len)
     disk_param_init(buf, blk, len, &param);
     return __disk_io(id, DISK_IO_READ, &param);
 }
+
+/*
+ * Query information from a specific disk
+ *
+ * @id: ID of disk to query from
+ * @res: Resulting information goes here
+ */
+int
+disk_query(diskid_t id, struct disk_info *res)
+{
+    struct disk_param param;
+
+    if (res == NULL) {
+        return -EINVAL;
+    }
+
+    disk_param_init(res, 0, sizeof(*res), &param);
+    return __disk_io(id, DISK_IO_QUERY, &param);
+}