1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
/*
* Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
*
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
*
* Authors: Sylwester Nawrocki <s.nawrocki@samsung.com>
* Younghwan Joo <yhwan.joo@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef FIMC_ISP_H_
#define FIMC_ISP_H_
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/videodev2.h>
#include <media/media-entity.h>
#include <media/videobuf2-v4l2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mediabus.h>
#include <media/drv-intf/exynos-fimc.h>
extern int fimc_isp_debug;
#define isp_dbg(level, dev, fmt, arg...) \
v4l2_dbg(level, fimc_isp_debug, dev, fmt, ## arg)
/* FIXME: revisit these constraints */
#define FIMC_ISP_SINK_WIDTH_MIN (16 + 8)
#define FIMC_ISP_SINK_HEIGHT_MIN (12 + 8)
#define FIMC_ISP_SOURCE_WIDTH_MIN 8
#define FIMC_ISP_SOURCE_HEIGHT_MIN 8
#define FIMC_ISP_CAC_MARGIN_WIDTH 16
#define FIMC_ISP_CAC_MARGIN_HEIGHT 12
#define FIMC_ISP_SINK_WIDTH_MAX (4000 - 16)
#define FIMC_ISP_SINK_HEIGHT_MAX (4000 + 12)
#define FIMC_ISP_SOURCE_WIDTH_MAX 4000
#define FIMC_ISP_SOURCE_HEIGHT_MAX 4000
#define FIMC_ISP_NUM_FORMATS 3
#define FIMC_ISP_REQ_BUFS_MIN 2
#define FIMC_ISP_REQ_BUFS_MAX 32
#define FIMC_ISP_SD_PAD_SINK 0
#define FIMC_ISP_SD_PAD_SRC_FIFO 1
#define FIMC_ISP_SD_PAD_SRC_DMA 2
#define FIMC_ISP_SD_PADS_NUM 3
#define FIMC_ISP_MAX_PLANES 1
/**
* struct fimc_isp_frame - source/target frame properties
* @width: full image width
* @height: full image height
* @rect: crop/composition rectangle
*/
struct fimc_isp_frame {
u16 width;
u16 height;
struct v4l2_rect rect;
};
struct fimc_isp_ctrls {
struct v4l2_ctrl_handler handler;
/* Auto white balance */
struct v4l2_ctrl *auto_wb;
/* Auto ISO control cluster */
struct {
struct v4l2_ctrl *auto_iso;
struct v4l2_ctrl *iso;
};
/* Adjust - contrast */
struct v4l2_ctrl *contrast;
/* Adjust - saturation */
struct v4l2_ctrl *saturation;
/* Adjust - sharpness */
struct v4l2_ctrl *sharpness;
/* Adjust - brightness */
struct v4l2_ctrl *brightness;
/* Adjust - hue */
struct v4l2_ctrl *hue;
/* Auto/manual exposure */
struct v4l2_ctrl *auto_exp;
/* Manual exposure value */
struct v4l2_ctrl *exposure;
/* AE/AWB lock/unlock */
struct v4l2_ctrl *aewb_lock;
/* Exposure metering mode */
struct v4l2_ctrl *exp_metering;
/* AFC */
struct v4l2_ctrl *afc;
/* ISP image effect */
struct v4l2_ctrl *colorfx;
};
struct isp_video_buf {
struct vb2_v4l2_buffer vb;
dma_addr_t dma_addr[FIMC_ISP_MAX_PLANES];
unsigned int index;
};
#define to_isp_video_buf(_b) container_of(_b, struct isp_video_buf, vb)
#define FIMC_ISP_MAX_BUFS 4
/**
* struct fimc_is_video - fimc-is video device structure
* @vdev: video_device structure
* @type: video device type (CAPTURE/OUTPUT)
* @pad: video device media (sink) pad
* @pending_buf_q: pending buffers queue head
* @active_buf_q: a queue head of buffers scheduled in hardware
* @vb_queue: vb2 buffer queue
* @active_buf_count: number of video buffers scheduled in hardware
* @frame_count: counter of frames dequeued to user space
* @reqbufs_count: number of buffers requested with REQBUFS ioctl
* @format: current pixel format
*/
struct fimc_is_video {
struct exynos_video_entity ve;
enum v4l2_buf_type type;
struct media_pad pad;
struct list_head pending_buf_q;
struct list_head active_buf_q;
struct vb2_queue vb_queue;
unsigned int reqbufs_count;
unsigned int buf_count;
unsigned int buf_mask;
unsigned int frame_count;
int streaming;
struct isp_video_buf *buffers[FIMC_ISP_MAX_BUFS];
const struct fimc_fmt *format;
struct v4l2_pix_format_mplane pixfmt;
};
/* struct fimc_isp:state bit definitions */
#define ST_ISP_VID_CAP_BUF_PREP 0
#define ST_ISP_VID_CAP_STREAMING 1
/**
* struct fimc_isp - FIMC-IS ISP data structure
* @pdev: pointer to FIMC-IS platform device
* @alloc_ctx: videobuf2 memory allocator context
* @subdev: ISP v4l2_subdev
* @subdev_pads: the ISP subdev media pads
* @test_pattern: test pattern controls
* @ctrls: v4l2 controls structure
* @video_lock: mutex serializing video device and the subdev operations
* @cac_margin_x: horizontal CAC margin in pixels
* @cac_margin_y: vertical CAC margin in pixels
* @state: driver state flags
* @video_capture: the ISP block video capture device
*/
struct fimc_isp {
struct platform_device *pdev;
struct vb2_alloc_ctx *alloc_ctx;
struct v4l2_subdev subdev;
struct media_pad subdev_pads[FIMC_ISP_SD_PADS_NUM];
struct v4l2_mbus_framefmt src_fmt;
struct v4l2_mbus_framefmt sink_fmt;
struct v4l2_ctrl *test_pattern;
struct fimc_isp_ctrls ctrls;
struct mutex video_lock;
struct mutex subdev_lock;
unsigned int cac_margin_x;
unsigned int cac_margin_y;
unsigned long state;
struct fimc_is_video video_capture;
};
#define ctrl_to_fimc_isp(_ctrl) \
container_of(ctrl->handler, struct fimc_isp, ctrls.handler)
struct fimc_is;
int fimc_isp_subdev_create(struct fimc_isp *isp);
void fimc_isp_subdev_destroy(struct fimc_isp *isp);
void fimc_isp_irq_handler(struct fimc_is *is);
int fimc_is_create_controls(struct fimc_isp *isp);
int fimc_is_delete_controls(struct fimc_isp *isp);
const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,
const u32 *mbus_code, int index);
#endif /* FIMC_ISP_H_ */
|
