1 /*
2  * Support for Intel Camera Imaging ISP subsystem.
3  * Copyright (c) 2015, Intel Corporation.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms and conditions of the GNU General Public License,
7  * version 2, as published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  */
14 
15 #ifndef _IA_CSS_SDIS_COMMON_HOST_H
16 #define _IA_CSS_SDIS_COMMON_HOST_H
17 
18 #define ISP_MAX_SDIS_HOR_PROJ_NUM_ISP \
19 	__ISP_SDIS_HOR_PROJ_NUM_ISP(ISP_MAX_INTERNAL_WIDTH, ISP_MAX_INTERNAL_HEIGHT, \
20 		SH_CSS_DIS_DECI_FACTOR_LOG2, ISP_PIPE_VERSION)
21 #define ISP_MAX_SDIS_VER_PROJ_NUM_ISP \
22 	__ISP_SDIS_VER_PROJ_NUM_ISP(ISP_MAX_INTERNAL_WIDTH, \
23 		SH_CSS_DIS_DECI_FACTOR_LOG2)
24 
25 #define _ISP_SDIS_HOR_COEF_NUM_VECS \
26 	__ISP_SDIS_HOR_COEF_NUM_VECS(ISP_INTERNAL_WIDTH)
27 #define ISP_MAX_SDIS_HOR_COEF_NUM_VECS \
28 	__ISP_SDIS_HOR_COEF_NUM_VECS(ISP_MAX_INTERNAL_WIDTH)
29 #define ISP_MAX_SDIS_VER_COEF_NUM_VECS \
30 	__ISP_SDIS_VER_COEF_NUM_VECS(ISP_MAX_INTERNAL_HEIGHT)
31 
32 /* SDIS Coefficients: */
33 /* The ISP uses vectors to store the coefficients, so we round
34    the number of coefficients up to vectors. */
35 #define __ISP_SDIS_HOR_COEF_NUM_VECS(in_width)  _ISP_VECS(_ISP_BQS(in_width))
36 #define __ISP_SDIS_VER_COEF_NUM_VECS(in_height) _ISP_VECS(_ISP_BQS(in_height))
37 
38 /* SDIS Projections:
39  * SDIS1: Horizontal projections are calculated for each line.
40  * Vertical projections are calculated for each column.
41  * SDIS2: Projections are calculated for each grid cell.
42  * Grid cells that do not fall completely within the image are not
43  * valid. The host needs to use the bigger one for the stride but
44  * should only return the valid ones to the 3A. */
45 #define __ISP_SDIS_HOR_PROJ_NUM_ISP(in_width, in_height, deci_factor_log2, \
46 	isp_pipe_version) \
47 	((isp_pipe_version == 1) ? \
48 		CEIL_SHIFT(_ISP_BQS(in_height), deci_factor_log2) : \
49 		CEIL_SHIFT(_ISP_BQS(in_width), deci_factor_log2))
50 
51 #define __ISP_SDIS_VER_PROJ_NUM_ISP(in_width, deci_factor_log2) \
52 	CEIL_SHIFT(_ISP_BQS(in_width), deci_factor_log2)
53 
54 #define SH_CSS_DIS_VER_NUM_COEF_TYPES(b) \
55   (((b)->info->sp.pipeline.isp_pipe_version == 2) ? \
56 	IA_CSS_DVS2_NUM_COEF_TYPES : \
57 	IA_CSS_DVS_NUM_COEF_TYPES)
58 
59 #ifndef PIPE_GENERATION
60 #if defined(__ISP) || defined(MK_FIRMWARE)
61 
62 /* Array cannot be 2-dimensional, since driver ddr allocation does not know stride */
63 struct sh_css_isp_sdis_hori_proj_tbl {
64 	s32 tbl[ISP_DVS_NUM_COEF_TYPES * ISP_MAX_SDIS_HOR_PROJ_NUM_ISP];
65 #if DVS2_PROJ_MARGIN > 0
66 	s32 margin[DVS2_PROJ_MARGIN];
67 #endif
68 };
69 
70 struct sh_css_isp_sdis_vert_proj_tbl {
71 	s32 tbl[ISP_DVS_NUM_COEF_TYPES * ISP_MAX_SDIS_VER_PROJ_NUM_ISP];
72 #if DVS2_PROJ_MARGIN > 0
73 	s32 margin[DVS2_PROJ_MARGIN];
74 #endif
75 };
76 
77 struct sh_css_isp_sdis_hori_coef_tbl {
78 	VMEM_ARRAY(tbl[ISP_DVS_NUM_COEF_TYPES],
79 		   ISP_MAX_SDIS_HOR_COEF_NUM_VECS * ISP_NWAY);
80 };
81 
82 struct sh_css_isp_sdis_vert_coef_tbl {
83 	VMEM_ARRAY(tbl[ISP_DVS_NUM_COEF_TYPES],
84 		   ISP_MAX_SDIS_VER_COEF_NUM_VECS * ISP_NWAY);
85 };
86 
87 #endif /* defined(__ISP) || defined (MK_FIRMWARE) */
88 #endif /* PIPE_GENERATION */
89 
90 #ifndef PIPE_GENERATION
91 struct s_sdis_config {
92 	unsigned int horicoef_vectors;
93 	unsigned int vertcoef_vectors;
94 	unsigned int horiproj_num;
95 	unsigned int vertproj_num;
96 };
97 
98 extern struct s_sdis_config sdis_config;
99 #endif
100 
101 #endif /* _IA_CSS_SDIS_COMMON_HOST_H */
102