1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Support for Intel Camera Imaging ISP subsystem.
4  * Copyright (c) 2015, Intel Corporation.
5  */
6 
7 #ifndef __IA_CSS_VF_HOST_H
8 #define __IA_CSS_VF_HOST_H
9 
10 #include "ia_css_frame_public.h"
11 #include "ia_css_binary.h"
12 
13 #include "ia_css_vf_types.h"
14 #include "ia_css_vf_param.h"
15 
16 /* compute the log2 of the downscale factor needed to get closest
17  * to the requested viewfinder resolution on the upper side. The output cannot
18  * be smaller than the requested viewfinder resolution.
19  */
20 int
21 sh_css_vf_downscale_log2(
22     const struct ia_css_frame_info *out_info,
23     const struct ia_css_frame_info *vf_info,
24     unsigned int *downscale_log2);
25 
26 int ia_css_vf_config(struct sh_css_isp_vf_isp_config *to,
27 		     const struct ia_css_vf_configuration *from,
28 		     unsigned int size);
29 
30 int
31 ia_css_vf_configure(
32     const struct ia_css_binary *binary,
33     const struct ia_css_frame_info *out_info,
34     struct ia_css_frame_info *vf_info,
35     unsigned int *downscale_log2);
36 
37 #endif /* __IA_CSS_VF_HOST_H */
38