From e3ab80e052e92be776829249b6b73734dd0f92e2 Mon Sep 17 00:00:00 2001
From: Andress Barajas <andress.barajas@gmail.com>
Date: Sun, 24 Nov 2024 21:55:26 -0800
Subject: [PATCH] Added rewinddir to dcload

Actually dcload for both serial and IP already contained support for rewinddir.  It just wasn't supported on the KOS or dctool(HOST) side.  This changes that for KOS.
---
 kernel/arch/dreamcast/fs/fs_dcload.c         | 15 ++++++++++++++-
 kernel/arch/dreamcast/include/dc/fs_dcload.h |  1 +
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/kernel/arch/dreamcast/fs/fs_dcload.c b/kernel/arch/dreamcast/fs/fs_dcload.c
index 8ebfab2dc5..5bb3c3641b 100644
--- a/kernel/arch/dreamcast/fs/fs_dcload.c
+++ b/kernel/arch/dreamcast/fs/fs_dcload.c
@@ -401,6 +401,19 @@ static int dcload_fcntl(void *h, int cmd, va_list ap) {
     return rv;
 }
 
+static int dcload_rewinddir(void *h) {
+    int rv = -1;
+    uint32_t hnd = (uint32_t)h;
+
+    spinlock_lock(&dcload_lock);
+
+    rv = dclsc(DCLOAD_REWINDDIR, hnd);
+
+    spinlock_unlock(&dcload_lock);
+
+    return rv;
+}
+
 /* Pull all that together */
 static vfs_handler_t vh = {
     /* Name handler */
@@ -439,7 +452,7 @@ static vfs_handler_t vh = {
     NULL,               /* tell64 */
     NULL,               /* total64 */
     NULL,               /* readlink */
-    NULL,               /* rewinddir */
+    dcload_rewinddir,
     NULL                /* fstat */
 };
 
diff --git a/kernel/arch/dreamcast/include/dc/fs_dcload.h b/kernel/arch/dreamcast/include/dc/fs_dcload.h
index af5819c9da..076352ded9 100644
--- a/kernel/arch/dreamcast/include/dc/fs_dcload.h
+++ b/kernel/arch/dreamcast/include/dc/fs_dcload.h
@@ -76,6 +76,7 @@ extern int dcload_type;
 #define DCLOAD_READDIR      18
 #define DCLOAD_GETHOSTINFO  19
 #define DCLOAD_GDBPACKET    20
+#define DCLOAD_REWINDDIR    21
 
 /* dcload syscall function */
 int dcloadsyscall(uint32_t syscall, ...);