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Diffstat (limited to 'drivers/media/platform/exynos4-is/fimc-lite.h')
-rw-r--r--drivers/media/platform/exynos4-is/fimc-lite.h217
1 files changed, 217 insertions, 0 deletions
diff --git a/drivers/media/platform/exynos4-is/fimc-lite.h b/drivers/media/platform/exynos4-is/fimc-lite.h
new file mode 100644
index 000000000000..4c2345086366
--- /dev/null
+++ b/drivers/media/platform/exynos4-is/fimc-lite.h
@@ -0,0 +1,217 @@
1/*
2 * Copyright (C) 2012 Samsung Electronics Co., Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#ifndef FIMC_LITE_H_
10#define FIMC_LITE_H_
11
12#include <linux/sizes.h>
13#include <linux/io.h>
14#include <linux/irqreturn.h>
15#include <linux/platform_device.h>
16#include <linux/sched.h>
17#include <linux/spinlock.h>
18#include <linux/types.h>
19#include <linux/videodev2.h>
20
21#include <media/media-entity.h>
22#include <media/videobuf2-core.h>
23#include <media/v4l2-ctrls.h>
24#include <media/v4l2-device.h>
25#include <media/v4l2-mediabus.h>
26#include <media/s5p_fimc.h>
27
28#define FIMC_LITE_DRV_NAME "exynos-fimc-lite"
29#define FLITE_CLK_NAME "flite"
30#define FIMC_LITE_MAX_DEVS 2
31#define FLITE_REQ_BUFS_MIN 2
32
33/* Bit index definitions for struct fimc_lite::state */
34enum {
35 ST_FLITE_LPM,
36 ST_FLITE_PENDING,
37 ST_FLITE_RUN,
38 ST_FLITE_STREAM,
39 ST_FLITE_SUSPENDED,
40 ST_FLITE_OFF,
41 ST_FLITE_IN_USE,
42 ST_FLITE_CONFIG,
43 ST_SENSOR_STREAM,
44};
45
46#define FLITE_SD_PAD_SINK 0
47#define FLITE_SD_PAD_SOURCE_DMA 1
48#define FLITE_SD_PAD_SOURCE_ISP 2
49#define FLITE_SD_PADS_NUM 3
50
51struct flite_variant {
52 unsigned short max_width;
53 unsigned short max_height;
54 unsigned short out_width_align;
55 unsigned short win_hor_offs_align;
56 unsigned short out_hor_offs_align;
57};
58
59struct flite_drvdata {
60 struct flite_variant *variant[FIMC_LITE_MAX_DEVS];
61};
62
63#define fimc_lite_get_drvdata(_pdev) \
64 ((struct flite_drvdata *) platform_get_device_id(_pdev)->driver_data)
65
66struct fimc_lite_events {
67 unsigned int data_overflow;
68};
69
70#define FLITE_MAX_PLANES 1
71
72/**
73 * struct flite_frame - source/target frame properties
74 * @f_width: full pixel width
75 * @f_height: full pixel height
76 * @rect: crop/composition rectangle
77 */
78struct flite_frame {
79 u16 f_width;
80 u16 f_height;
81 struct v4l2_rect rect;
82};
83
84/**
85 * struct flite_buffer - video buffer structure
86 * @vb: vb2 buffer
87 * @list: list head for the buffers queue
88 * @paddr: precalculated physical address
89 */
90struct flite_buffer {
91 struct vb2_buffer vb;
92 struct list_head list;
93 dma_addr_t paddr;
94};
95
96/**
97 * struct fimc_lite - fimc lite structure
98 * @pdev: pointer to FIMC-LITE platform device
99 * @variant: variant information for this IP
100 * @v4l2_dev: pointer to top the level v4l2_device
101 * @vfd: video device node
102 * @fh: v4l2 file handle
103 * @alloc_ctx: videobuf2 memory allocator context
104 * @subdev: FIMC-LITE subdev
105 * @vd_pad: media (sink) pad for the capture video node
106 * @subdev_pads: the subdev media pads
107 * @sensor: sensor subdev attached to FIMC-LITE directly or through MIPI-CSIS
108 * @ctrl_handler: v4l2 control handler
109 * @test_pattern: test pattern controls
110 * @index: FIMC-LITE platform device index
111 * @pipeline: video capture pipeline data structure
112 * @pipeline_ops: media pipeline ops for the video node driver
113 * @slock: spinlock protecting this data structure and the hw registers
114 * @lock: mutex serializing video device and the subdev operations
115 * @clock: FIMC-LITE gate clock
116 * @regs: memory mapped io registers
117 * @irq_queue: interrupt handler waitqueue
118 * @fmt: pointer to color format description structure
119 * @payload: image size in bytes (w x h x bpp)
120 * @inp_frame: camera input frame structure
121 * @out_frame: DMA output frame structure
122 * @out_path: output data path (DMA or FIFO)
123 * @source_subdev_grp_id: source subdev group id
124 * @state: driver state flags
125 * @pending_buf_q: pending buffers queue head
126 * @active_buf_q: the queue head of buffers scheduled in hardware
127 * @vb_queue: vb2 buffers queue
128 * @active_buf_count: number of video buffers scheduled in hardware
129 * @frame_count: the captured frames counter
130 * @reqbufs_count: the number of buffers requested with REQBUFS ioctl
131 * @ref_count: driver's private reference counter
132 */
133struct fimc_lite {
134 struct platform_device *pdev;
135 struct flite_variant *variant;
136 struct v4l2_device *v4l2_dev;
137 struct video_device vfd;
138 struct v4l2_fh fh;
139 struct vb2_alloc_ctx *alloc_ctx;
140 struct v4l2_subdev subdev;
141 struct media_pad vd_pad;
142 struct media_pad subdev_pads[FLITE_SD_PADS_NUM];
143 struct v4l2_subdev *sensor;
144 struct v4l2_ctrl_handler ctrl_handler;
145 struct v4l2_ctrl *test_pattern;
146 u32 index;
147 struct fimc_pipeline pipeline;
148 const struct fimc_pipeline_ops *pipeline_ops;
149
150 struct mutex lock;
151 spinlock_t slock;
152
153 struct clk *clock;
154 void __iomem *regs;
155 wait_queue_head_t irq_queue;
156
157 const struct fimc_fmt *fmt;
158 unsigned long payload[FLITE_MAX_PLANES];
159 struct flite_frame inp_frame;
160 struct flite_frame out_frame;
161 atomic_t out_path;
162 unsigned int source_subdev_grp_id;
163
164 unsigned long state;
165 struct list_head pending_buf_q;
166 struct list_head active_buf_q;
167 struct vb2_queue vb_queue;
168 unsigned int frame_count;
169 unsigned int reqbufs_count;
170 int ref_count;
171
172 struct fimc_lite_events events;
173};
174
175static inline bool fimc_lite_active(struct fimc_lite *fimc)
176{
177 unsigned long flags;
178 bool ret;
179
180 spin_lock_irqsave(&fimc->slock, flags);
181 ret = fimc->state & (1 << ST_FLITE_RUN) ||
182 fimc->state & (1 << ST_FLITE_PENDING);
183 spin_unlock_irqrestore(&fimc->slock, flags);
184 return ret;
185}
186
187static inline void fimc_lite_active_queue_add(struct fimc_lite *dev,
188 struct flite_buffer *buf)
189{
190 list_add_tail(&buf->list, &dev->active_buf_q);
191}
192
193static inline struct flite_buffer *fimc_lite_active_queue_pop(
194 struct fimc_lite *dev)
195{
196 struct flite_buffer *buf = list_entry(dev->active_buf_q.next,
197 struct flite_buffer, list);
198 list_del(&buf->list);
199 return buf;
200}
201
202static inline void fimc_lite_pending_queue_add(struct fimc_lite *dev,
203 struct flite_buffer *buf)
204{
205 list_add_tail(&buf->list, &dev->pending_buf_q);
206}
207
208static inline struct flite_buffer *fimc_lite_pending_queue_pop(
209 struct fimc_lite *dev)
210{
211 struct flite_buffer *buf = list_entry(dev->pending_buf_q.next,
212 struct flite_buffer, list);
213 list_del(&buf->list);
214 return buf;
215}
216
217#endif /* FIMC_LITE_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-22 03:29:56 -0500