1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * VRFB Rotation Engine
4  *
5  * Copyright (C) 2009 Nokia Corporation
6  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
7  */
8 
9 #ifndef __OMAP_VRFB_H__
10 #define __OMAP_VRFB_H__
11 
12 #define OMAP_VRFB_LINE_LEN 2048
13 
14 struct vrfb {
15 	u8 context;
16 	void __iomem *vaddr[4];
17 	unsigned long paddr[4];
18 	u16 xres;
19 	u16 yres;
20 	u16 xoffset;
21 	u16 yoffset;
22 	u8 bytespp;
23 	bool yuv_mode;
24 };
25 
26 #ifdef CONFIG_OMAP2_VRFB
27 extern bool omap_vrfb_supported(void);
28 extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
29 extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
30 extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
31 		u8 bytespp);
32 extern u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp);
33 extern u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp);
34 extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
35 		u16 width, u16 height,
36 		unsigned bytespp, bool yuv_mode);
37 extern int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot);
38 extern void omap_vrfb_restore_context(void);
39 
40 #else
omap_vrfb_supported(void)41 static inline bool omap_vrfb_supported(void) { return false; }
omap_vrfb_request_ctx(struct vrfb * vrfb)42 static inline int omap_vrfb_request_ctx(struct vrfb *vrfb) { return 0; }
omap_vrfb_release_ctx(struct vrfb * vrfb)43 static inline void omap_vrfb_release_ctx(struct vrfb *vrfb) {}
omap_vrfb_adjust_size(u16 * width,u16 * height,u8 bytespp)44 static inline void omap_vrfb_adjust_size(u16 *width, u16 *height,
45 		u8 bytespp) {}
omap_vrfb_min_phys_size(u16 width,u16 height,u8 bytespp)46 static inline u32 omap_vrfb_min_phys_size(u16 width, u16 height, u8 bytespp)
47 		{ return 0; }
omap_vrfb_max_height(u32 phys_size,u16 width,u8 bytespp)48 static inline u16 omap_vrfb_max_height(u32 phys_size, u16 width, u8 bytespp)
49 		{ return 0; }
omap_vrfb_setup(struct vrfb * vrfb,unsigned long paddr,u16 width,u16 height,unsigned bytespp,bool yuv_mode)50 static inline void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
51 		u16 width, u16 height, unsigned bytespp, bool yuv_mode) {}
omap_vrfb_map_angle(struct vrfb * vrfb,u16 height,u8 rot)52 static inline int omap_vrfb_map_angle(struct vrfb *vrfb, u16 height, u8 rot)
53 		{ return 0; }
omap_vrfb_restore_context(void)54 static inline void omap_vrfb_restore_context(void) {}
55 #endif
56 #endif /* __VRFB_H */
57