1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * ispresizer.h |
4 | * |
5 | * TI OMAP3 ISP - Resizer module |
6 | * |
7 | * Copyright (C) 2010 Nokia Corporation |
8 | * Copyright (C) 2009 Texas Instruments, Inc |
9 | * |
10 | * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
11 | * Sakari Ailus <sakari.ailus@iki.fi> |
12 | */ |
13 | |
14 | #ifndef OMAP3_ISP_RESIZER_H |
15 | #define OMAP3_ISP_RESIZER_H |
16 | |
17 | #include <linux/spinlock.h> |
18 | #include <linux/types.h> |
19 | |
20 | /* |
21 | * Constants for filter coefficients count |
22 | */ |
23 | #define COEFF_CNT 32 |
24 | |
25 | /* |
26 | * struct isprsz_coef - Structure for resizer filter coefficients. |
27 | * @h_filter_coef_4tap: Horizontal filter coefficients for 8-phase/4-tap |
28 | * mode (.5x-4x) |
29 | * @v_filter_coef_4tap: Vertical filter coefficients for 8-phase/4-tap |
30 | * mode (.5x-4x) |
31 | * @h_filter_coef_7tap: Horizontal filter coefficients for 4-phase/7-tap |
32 | * mode (.25x-.5x) |
33 | * @v_filter_coef_7tap: Vertical filter coefficients for 4-phase/7-tap |
34 | * mode (.25x-.5x) |
35 | */ |
36 | struct isprsz_coef { |
37 | u16 h_filter_coef_4tap[32]; |
38 | u16 v_filter_coef_4tap[32]; |
39 | /* Every 8th value is a dummy value in the following arrays: */ |
40 | u16 h_filter_coef_7tap[32]; |
41 | u16 v_filter_coef_7tap[32]; |
42 | }; |
43 | |
44 | /* Chrominance horizontal algorithm */ |
45 | enum resizer_chroma_algo { |
46 | RSZ_THE_SAME = 0, /* Chrominance the same as Luminance */ |
47 | RSZ_BILINEAR = 1, /* Chrominance uses bilinear interpolation */ |
48 | }; |
49 | |
50 | /* Resizer input type select */ |
51 | enum resizer_colors_type { |
52 | RSZ_YUV422 = 0, /* YUV422 color is interleaved */ |
53 | RSZ_COLOR8 = 1, /* Color separate data on 8 bits */ |
54 | }; |
55 | |
56 | /* |
57 | * Structure for horizontal and vertical resizing value |
58 | */ |
59 | struct resizer_ratio { |
60 | u32 horz; |
61 | u32 vert; |
62 | }; |
63 | |
64 | /* |
65 | * Structure for luminance enhancer parameters. |
66 | */ |
67 | struct resizer_luma_yenh { |
68 | u8 algo; /* algorithm select. */ |
69 | u8 gain; /* maximum gain. */ |
70 | u8 slope; /* slope. */ |
71 | u8 core; /* core offset. */ |
72 | }; |
73 | |
74 | enum resizer_input_entity { |
75 | RESIZER_INPUT_NONE, |
76 | RESIZER_INPUT_VP, /* input video port - prev or ccdc */ |
77 | RESIZER_INPUT_MEMORY, |
78 | }; |
79 | |
80 | /* Sink and source resizer pads */ |
81 | #define RESZ_PAD_SINK 0 |
82 | #define RESZ_PAD_SOURCE 1 |
83 | #define RESZ_PADS_NUM 2 |
84 | |
85 | /* |
86 | * struct isp_res_device - OMAP3 ISP resizer module |
87 | * @lock: Protects formats and crop rectangles between set_selection and IRQ |
88 | * @crop.request: Crop rectangle requested by the user |
89 | * @crop.active: Active crop rectangle (based on hardware requirements) |
90 | */ |
91 | struct isp_res_device { |
92 | struct v4l2_subdev subdev; |
93 | struct media_pad pads[RESZ_PADS_NUM]; |
94 | struct v4l2_mbus_framefmt formats[RESZ_PADS_NUM]; |
95 | |
96 | enum resizer_input_entity input; |
97 | struct isp_video video_in; |
98 | struct isp_video video_out; |
99 | |
100 | u32 addr_base; /* stored source buffer address in memory mode */ |
101 | u32 crop_offset; /* additional offset for crop in memory mode */ |
102 | struct resizer_ratio ratio; |
103 | int pm_state; |
104 | unsigned int applycrop:1; |
105 | enum isp_pipeline_stream_state state; |
106 | wait_queue_head_t wait; |
107 | atomic_t stopping; |
108 | spinlock_t lock; |
109 | |
110 | struct { |
111 | struct v4l2_rect request; |
112 | struct v4l2_rect active; |
113 | } crop; |
114 | }; |
115 | |
116 | struct isp_device; |
117 | |
118 | int omap3isp_resizer_init(struct isp_device *isp); |
119 | void omap3isp_resizer_cleanup(struct isp_device *isp); |
120 | |
121 | int omap3isp_resizer_register_entities(struct isp_res_device *res, |
122 | struct v4l2_device *vdev); |
123 | void omap3isp_resizer_unregister_entities(struct isp_res_device *res); |
124 | void omap3isp_resizer_isr_frame_sync(struct isp_res_device *res); |
125 | void omap3isp_resizer_isr(struct isp_res_device *isp_res); |
126 | |
127 | void omap3isp_resizer_max_rate(struct isp_res_device *res, |
128 | unsigned int *max_rate); |
129 | |
130 | void omap3isp_resizer_suspend(struct isp_res_device *isp_res); |
131 | |
132 | void omap3isp_resizer_resume(struct isp_res_device *isp_res); |
133 | |
134 | int omap3isp_resizer_busy(struct isp_res_device *isp_res); |
135 | |
136 | #endif /* OMAP3_ISP_RESIZER_H */ |
137 | |