root/include/media/davinci/vpbe_display.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
   4  */
   5 #ifndef VPBE_DISPLAY_H
   6 #define VPBE_DISPLAY_H
   7 
   8 /* Header files */
   9 #include <linux/videodev2.h>
  10 #include <media/v4l2-common.h>
  11 #include <media/v4l2-fh.h>
  12 #include <media/videobuf2-v4l2.h>
  13 #include <media/videobuf2-dma-contig.h>
  14 #include <media/davinci/vpbe_types.h>
  15 #include <media/davinci/vpbe_osd.h>
  16 #include <media/davinci/vpbe.h>
  17 
  18 #define VPBE_DISPLAY_MAX_DEVICES 2
  19 
  20 enum vpbe_display_device_id {
  21         VPBE_DISPLAY_DEVICE_0,
  22         VPBE_DISPLAY_DEVICE_1
  23 };
  24 
  25 #define VPBE_DISPLAY_DRV_NAME   "vpbe-display"
  26 
  27 #define VPBE_DISPLAY_MAJOR_RELEASE              1
  28 #define VPBE_DISPLAY_MINOR_RELEASE              0
  29 #define VPBE_DISPLAY_BUILD                      1
  30 #define VPBE_DISPLAY_VERSION_CODE ((VPBE_DISPLAY_MAJOR_RELEASE << 16) | \
  31         (VPBE_DISPLAY_MINOR_RELEASE << 8)  | \
  32         VPBE_DISPLAY_BUILD)
  33 
  34 #define VPBE_DISPLAY_VALID_FIELD(field)   ((V4L2_FIELD_NONE == field) || \
  35          (V4L2_FIELD_ANY == field) || (V4L2_FIELD_INTERLACED == field))
  36 
  37 /* Exp ratio numerator and denominator constants */
  38 #define VPBE_DISPLAY_H_EXP_RATIO_N      9
  39 #define VPBE_DISPLAY_H_EXP_RATIO_D      8
  40 #define VPBE_DISPLAY_V_EXP_RATIO_N      6
  41 #define VPBE_DISPLAY_V_EXP_RATIO_D      5
  42 
  43 /* Zoom multiplication factor */
  44 #define VPBE_DISPLAY_ZOOM_4X    4
  45 #define VPBE_DISPLAY_ZOOM_2X    2
  46 
  47 /* Structures */
  48 struct display_layer_info {
  49         int enable;
  50         /* Layer ID used by Display Manager */
  51         enum osd_layer id;
  52         struct osd_layer_config config;
  53         enum osd_zoom_factor h_zoom;
  54         enum osd_zoom_factor v_zoom;
  55         enum osd_h_exp_ratio h_exp;
  56         enum osd_v_exp_ratio v_exp;
  57 };
  58 
  59 struct vpbe_disp_buffer {
  60         struct vb2_v4l2_buffer vb;
  61         struct list_head list;
  62 };
  63 
  64 /* vpbe display object structure */
  65 struct vpbe_layer {
  66         /* Pointer to the vpbe_display */
  67         struct vpbe_display *disp_dev;
  68         /* Pointer pointing to current v4l2_buffer */
  69         struct vpbe_disp_buffer *cur_frm;
  70         /* Pointer pointing to next v4l2_buffer */
  71         struct vpbe_disp_buffer *next_frm;
  72         /* videobuf specific parameters
  73          * Buffer queue used in video-buf
  74          */
  75         struct vb2_queue buffer_queue;
  76         /* Queue of filled frames */
  77         struct list_head dma_queue;
  78         /* Used in video-buf */
  79         spinlock_t irqlock;
  80         /* V4l2 specific parameters */
  81         /* Identifies video device for this layer */
  82         struct video_device video_dev;
  83         /* Used to store pixel format */
  84         struct v4l2_pix_format pix_fmt;
  85         enum v4l2_field buf_field;
  86         /* Video layer configuration params */
  87         struct display_layer_info layer_info;
  88         /* vpbe specific parameters
  89          * enable window for display
  90          */
  91         unsigned char window_enable;
  92         /* number of open instances of the layer */
  93         unsigned int usrs;
  94         /* Indicates id of the field which is being displayed */
  95         unsigned int field_id;
  96         /* Identifies device object */
  97         enum vpbe_display_device_id device_id;
  98         /* facilitation of ioctl ops lock by v4l2*/
  99         struct mutex opslock;
 100         u8 layer_first_int;
 101 };
 102 
 103 /* vpbe device structure */
 104 struct vpbe_display {
 105         /* layer specific parameters */
 106         /* lock for isr updates to buf layers*/
 107         spinlock_t dma_queue_lock;
 108         /* C-Plane offset from start of y-plane */
 109         unsigned int cbcr_ofst;
 110         struct vpbe_layer *dev[VPBE_DISPLAY_MAX_DEVICES];
 111         struct vpbe_device *vpbe_dev;
 112         struct osd_state *osd_device;
 113 };
 114 
 115 struct buf_config_params {
 116         unsigned char min_numbuffers;
 117         unsigned char numbuffers[VPBE_DISPLAY_MAX_DEVICES];
 118         unsigned int min_bufsize[VPBE_DISPLAY_MAX_DEVICES];
 119         unsigned int layer_bufsize[VPBE_DISPLAY_MAX_DEVICES];
 120 };
 121 
 122 #endif  /* VPBE_DISPLAY_H */