LXR linux/include/media/davinci/vpbe

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) 2010 Texas Instruments Incorporated - https://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
  20enum 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 */
  48struct 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
  59struct vpbe_disp_buffer {
  60        struct vb2_v4l2_buffer vb;
  61        struct list_head list;
  62};
  63
  64/* vpbe display object structure */
  65struct 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 */
 104struct 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
 115struct 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 */
 123