drivers/media/platform/omap3isp/isppreview.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * isppreview.h
   4  *
   5  * TI OMAP3 ISP - Preview 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_PREVIEW_H
  15 #define OMAP3_ISP_PREVIEW_H
  16
  17 #include <linux/omap3isp.h>
  18 #include <linux/types.h>
  19 #include <media/v4l2-ctrls.h>
  20
  21 #include "ispvideo.h"
  22
  23 #define ISPPRV_BRIGHT_STEP              0x1
  24 #define ISPPRV_BRIGHT_DEF               0x0
  25 #define ISPPRV_BRIGHT_LOW               0x0
  26 #define ISPPRV_BRIGHT_HIGH              0xFF
  27 #define ISPPRV_BRIGHT_UNITS             0x1
  28
  29 #define ISPPRV_CONTRAST_STEP            0x1
  30 #define ISPPRV_CONTRAST_DEF             0x10
  31 #define ISPPRV_CONTRAST_LOW             0x0
  32 #define ISPPRV_CONTRAST_HIGH            0xFF
  33 #define ISPPRV_CONTRAST_UNITS           0x1
  34
  35 /* Additional features not listed in linux/omap3isp.h */
  36 #define OMAP3ISP_PREV_CONTRAST          (1 << 17)
  37 #define OMAP3ISP_PREV_BRIGHTNESS        (1 << 18)
  38 #define OMAP3ISP_PREV_FEATURES_END      (1 << 19)
  39
  40 enum preview_input_entity {
  41         PREVIEW_INPUT_NONE,
  42         PREVIEW_INPUT_CCDC,
  43         PREVIEW_INPUT_MEMORY,
  44 };
  45
  46 #define PREVIEW_OUTPUT_RESIZER          (1 << 1)
  47 #define PREVIEW_OUTPUT_MEMORY           (1 << 2)
  48
  49 /* Configure byte layout of YUV image */
  50 enum preview_ycpos_mode {
  51         YCPOS_YCrYCb = 0,
  52         YCPOS_YCbYCr = 1,
  53         YCPOS_CbYCrY = 2,
  54         YCPOS_CrYCbY = 3
  55 };
  56
  57 /*
  58  * struct prev_params - Structure for all configuration
  59  * @busy: Bitmask of busy parameters (being updated or used)
  60  * @update: Bitmask of the parameters to be updated
  61  * @features: Set of features enabled.
  62  * @cfa: CFA coefficients.
  63  * @csup: Chroma suppression coefficients.
  64  * @luma: Luma enhancement coefficients.
  65  * @nf: Noise filter coefficients.
  66  * @dcor: Noise filter coefficients.
  67  * @gamma: Gamma coefficients.
  68  * @wbal: White Balance parameters.
  69  * @blkadj: Black adjustment parameters.
  70  * @rgb2rgb: RGB blending parameters.
  71  * @csc: Color space conversion (RGB to YCbCr) parameters.
  72  * @hmed: Horizontal median filter.
  73  * @yclimit: YC limits parameters.
  74  * @contrast: Contrast.
  75  * @brightness: Brightness.
  76  */
  77 struct prev_params {
  78         u32 busy;
  79         u32 update;
  80         u32 features;
  81         struct omap3isp_prev_cfa cfa;
  82         struct omap3isp_prev_csup csup;
  83         struct omap3isp_prev_luma luma;
  84         struct omap3isp_prev_nf nf;
  85         struct omap3isp_prev_dcor dcor;
  86         struct omap3isp_prev_gtables gamma;
  87         struct omap3isp_prev_wbal wbal;
  88         struct omap3isp_prev_blkadj blkadj;
  89         struct omap3isp_prev_rgbtorgb rgb2rgb;
  90         struct omap3isp_prev_csc csc;
  91         struct omap3isp_prev_hmed hmed;
  92         struct omap3isp_prev_yclimit yclimit;
  93         u8 contrast;
  94         u8 brightness;
  95 };
  96
  97 /* Sink and source previewer pads */
  98 #define PREV_PAD_SINK                   0
  99 #define PREV_PAD_SOURCE                 1
 100 #define PREV_PADS_NUM                   2
 101
 102 /*
 103  * struct isp_prev_device - Structure for storing ISP Preview module information
 104  * @subdev: V4L2 subdevice
 105  * @pads: Media entity pads
 106  * @formats: Active formats at the subdev pad
 107  * @crop: Active crop rectangle
 108  * @input: Module currently connected to the input pad
 109  * @output: Bitmask of the active output
 110  * @video_in: Input video entity
 111  * @video_out: Output video entity
 112  * @params.params : Active and shadow parameters sets
 113  * @params.active: Bitmask of parameters active in set 0
 114  * @params.lock: Parameters lock, protects params.active and params.shadow
 115  * @underrun: Whether the preview entity has queued buffers on the output
 116  * @state: Current preview pipeline state
 117  *
 118  * This structure is used to store the OMAP ISP Preview module Information.
 119  */
 120 struct isp_prev_device {
 121         struct v4l2_subdev subdev;
 122         struct media_pad pads[PREV_PADS_NUM];
 123         struct v4l2_mbus_framefmt formats[PREV_PADS_NUM];
 124         struct v4l2_rect crop;
 125
 126         struct v4l2_ctrl_handler ctrls;
 127
 128         enum preview_input_entity input;
 129         unsigned int output;
 130         struct isp_video video_in;
 131         struct isp_video video_out;
 132
 133         struct {
 134                 unsigned int cfa_order;
 135                 struct prev_params params[2];
 136                 u32 active;
 137                 spinlock_t lock;
 138         } params;
 139
 140         enum isp_pipeline_stream_state state;
 141         wait_queue_head_t wait;
 142         atomic_t stopping;
 143 };
 144
 145 struct isp_device;
 146
 147 int omap3isp_preview_init(struct isp_device *isp);
 148 void omap3isp_preview_cleanup(struct isp_device *isp);
 149
 150 int omap3isp_preview_register_entities(struct isp_prev_device *prv,
 151                                        struct v4l2_device *vdev);
 152 void omap3isp_preview_unregister_entities(struct isp_prev_device *prv);
 153
 154 void omap3isp_preview_isr_frame_sync(struct isp_prev_device *prev);
 155 void omap3isp_preview_isr(struct isp_prev_device *prev);
 156
 157 int omap3isp_preview_busy(struct isp_prev_device *isp_prev);
 158
 159 void omap3isp_preview_restore_context(struct isp_device *isp);
 160
 161 #endif  /* OMAP3_ISP_PREVIEW_H */