cfbcopyarea.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 *	Copyright (C)  2025 Zsolt Kajtar (soci@c64.rulez.org)
 4 */
 5
 6#include <linux/export.h>
 7#include <linux/module.h>
 8#include <linux/fb.h>
 9#include <linux/bitrev.h>
10#include <asm/types.h>
11
12#ifdef CONFIG_FB_CFB_REV_PIXELS_IN_BYTE
13#define FB_REV_PIXELS_IN_BYTE
14#endif
15
16#include "cfbmem.h"
17#include "fb_copyarea.h"
18
19void cfb_copyarea(struct fb_info *p, const struct fb_copyarea *area)
20{
21	if (p->state != FBINFO_STATE_RUNNING)
22		return;
23
24	if (p->flags & FBINFO_VIRTFB)
25		fb_warn_once(p, "%s: framebuffer is not in I/O address space.\n", __func__);
26
27	if (p->fbops->fb_sync)
28		p->fbops->fb_sync(p);
29
30	fb_copyarea(p, area);
31}
32EXPORT_SYMBOL(cfb_copyarea);
33
34MODULE_AUTHOR("Zsolt Kajtar <soci@c64.rulez.org>");
35MODULE_DESCRIPTION("I/O memory packed pixel framebuffer area copy");
36MODULE_LICENSE("GPL");