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