Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / drivers / media / video / omap3isp / ispresizer.h
blob70c1c0e1bbdf687594c5ac26baa5361bd3b16a18
1 /*
2 * ispresizer.h
4 * TI OMAP3 ISP - Resizer module
6 * Copyright (C) 2010 Nokia Corporation
7 * Copyright (C) 2009 Texas Instruments, Inc
9 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
10 * Sakari Ailus <sakari.ailus@iki.fi>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
24 * 02110-1301 USA
27 #ifndef OMAP3_ISP_RESIZER_H
28 #define OMAP3_ISP_RESIZER_H
30 #include <linux/types.h>
33 * Constants for filter coefficents count
35 #define COEFF_CNT 32
38 * struct isprsz_coef - Structure for resizer filter coeffcients.
39 * @h_filter_coef_4tap: Horizontal filter coefficients for 8-phase/4-tap
40 * mode (.5x-4x)
41 * @v_filter_coef_4tap: Vertical filter coefficients for 8-phase/4-tap
42 * mode (.5x-4x)
43 * @h_filter_coef_7tap: Horizontal filter coefficients for 4-phase/7-tap
44 * mode (.25x-.5x)
45 * @v_filter_coef_7tap: Vertical filter coefficients for 4-phase/7-tap
46 * mode (.25x-.5x)
48 struct isprsz_coef {
49 u16 h_filter_coef_4tap[32];
50 u16 v_filter_coef_4tap[32];
51 /* Every 8th value is a dummy value in the following arrays: */
52 u16 h_filter_coef_7tap[32];
53 u16 v_filter_coef_7tap[32];
56 /* Chrominance horizontal algorithm */
57 enum resizer_chroma_algo {
58 RSZ_THE_SAME = 0, /* Chrominance the same as Luminance */
59 RSZ_BILINEAR = 1, /* Chrominance uses bilinear interpolation */
62 /* Resizer input type select */
63 enum resizer_colors_type {
64 RSZ_YUV422 = 0, /* YUV422 color is interleaved */
65 RSZ_COLOR8 = 1, /* Color separate data on 8 bits */
69 * Structure for horizontal and vertical resizing value
71 struct resizer_ratio {
72 u32 horz;
73 u32 vert;
77 * Structure for luminance enhancer parameters.
79 struct resizer_luma_yenh {
80 u8 algo; /* algorithm select. */
81 u8 gain; /* maximum gain. */
82 u8 slope; /* slope. */
83 u8 core; /* core offset. */
86 enum resizer_input_entity {
87 RESIZER_INPUT_NONE,
88 RESIZER_INPUT_VP, /* input video port - prev or ccdc */
89 RESIZER_INPUT_MEMORY,
92 /* Sink and source resizer pads */
93 #define RESZ_PAD_SINK 0
94 #define RESZ_PAD_SOURCE 1
95 #define RESZ_PADS_NUM 2
98 * struct isp_res_device - OMAP3 ISP resizer module
99 * @crop.request: Crop rectangle requested by the user
100 * @crop.active: Active crop rectangle (based on hardware requirements)
102 struct isp_res_device {
103 struct v4l2_subdev subdev;
104 struct media_pad pads[RESZ_PADS_NUM];
105 struct v4l2_mbus_framefmt formats[RESZ_PADS_NUM];
107 enum resizer_input_entity input;
108 struct isp_video video_in;
109 struct isp_video video_out;
111 u32 addr_base; /* stored source buffer address in memory mode */
112 u32 crop_offset; /* additional offset for crop in memory mode */
113 struct resizer_ratio ratio;
114 int pm_state;
115 unsigned int applycrop:1;
116 enum isp_pipeline_stream_state state;
117 wait_queue_head_t wait;
118 atomic_t stopping;
120 struct {
121 struct v4l2_rect request;
122 struct v4l2_rect active;
123 } crop;
126 struct isp_device;
128 int omap3isp_resizer_init(struct isp_device *isp);
129 void omap3isp_resizer_cleanup(struct isp_device *isp);
131 int omap3isp_resizer_register_entities(struct isp_res_device *res,
132 struct v4l2_device *vdev);
133 void omap3isp_resizer_unregister_entities(struct isp_res_device *res);
134 void omap3isp_resizer_isr_frame_sync(struct isp_res_device *res);
135 void omap3isp_resizer_isr(struct isp_res_device *isp_res);
137 void omap3isp_resizer_max_rate(struct isp_res_device *res,
138 unsigned int *max_rate);
140 void omap3isp_resizer_suspend(struct isp_res_device *isp_res);
142 void omap3isp_resizer_resume(struct isp_res_device *isp_res);
144 int omap3isp_resizer_busy(struct isp_res_device *isp_res);
146 #endif /* OMAP3_ISP_RESIZER_H */