1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
5 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
7 * Authors: Sylwester Nawrocki <s.nawrocki@samsung.com>
8 * Younghwan Joo <yhwan.joo@samsung.com>
14 #include <linux/platform_device.h>
15 #include <linux/sched.h>
16 #include <linux/spinlock.h>
17 #include <linux/types.h>
18 #include <linux/videodev2.h>
20 #include <media/media-entity.h>
21 #include <media/videobuf2-v4l2.h>
22 #include <media/v4l2-device.h>
23 #include <media/v4l2-mediabus.h>
24 #include <media/drv-intf/exynos-fimc.h>
26 extern int fimc_isp_debug;
28 #define isp_dbg(level, dev, fmt, arg...) \
29 v4l2_dbg(level, fimc_isp_debug, dev, fmt, ## arg)
31 /* FIXME: revisit these constraints */
32 #define FIMC_ISP_SINK_WIDTH_MIN (16 + 8)
33 #define FIMC_ISP_SINK_HEIGHT_MIN (12 + 8)
34 #define FIMC_ISP_SOURCE_WIDTH_MIN 8
35 #define FIMC_ISP_SOURCE_HEIGHT_MIN 8
36 #define FIMC_ISP_CAC_MARGIN_WIDTH 16
37 #define FIMC_ISP_CAC_MARGIN_HEIGHT 12
39 #define FIMC_ISP_SINK_WIDTH_MAX (4000 - 16)
40 #define FIMC_ISP_SINK_HEIGHT_MAX (4000 + 12)
41 #define FIMC_ISP_SOURCE_WIDTH_MAX 4000
42 #define FIMC_ISP_SOURCE_HEIGHT_MAX 4000
44 #define FIMC_ISP_NUM_FORMATS 3
45 #define FIMC_ISP_REQ_BUFS_MIN 2
46 #define FIMC_ISP_REQ_BUFS_MAX 32
48 #define FIMC_ISP_SD_PAD_SINK 0
49 #define FIMC_ISP_SD_PAD_SRC_FIFO 1
50 #define FIMC_ISP_SD_PAD_SRC_DMA 2
51 #define FIMC_ISP_SD_PADS_NUM 3
52 #define FIMC_ISP_MAX_PLANES 1
55 * struct fimc_isp_frame - source/target frame properties
56 * @width: full image width
57 * @height: full image height
58 * @rect: crop/composition rectangle
60 struct fimc_isp_frame {
63 struct v4l2_rect rect;
66 struct fimc_isp_ctrls {
67 struct v4l2_ctrl_handler handler;
69 /* Auto white balance */
70 struct v4l2_ctrl *auto_wb;
71 /* Auto ISO control cluster */
73 struct v4l2_ctrl *auto_iso;
74 struct v4l2_ctrl *iso;
76 /* Adjust - contrast */
77 struct v4l2_ctrl *contrast;
78 /* Adjust - saturation */
79 struct v4l2_ctrl *saturation;
80 /* Adjust - sharpness */
81 struct v4l2_ctrl *sharpness;
82 /* Adjust - brightness */
83 struct v4l2_ctrl *brightness;
85 struct v4l2_ctrl *hue;
87 /* Auto/manual exposure */
88 struct v4l2_ctrl *auto_exp;
89 /* Manual exposure value */
90 struct v4l2_ctrl *exposure;
91 /* AE/AWB lock/unlock */
92 struct v4l2_ctrl *aewb_lock;
93 /* Exposure metering mode */
94 struct v4l2_ctrl *exp_metering;
96 struct v4l2_ctrl *afc;
97 /* ISP image effect */
98 struct v4l2_ctrl *colorfx;
101 struct isp_video_buf {
102 struct vb2_v4l2_buffer vb;
103 dma_addr_t dma_addr[FIMC_ISP_MAX_PLANES];
107 #define to_isp_video_buf(_b) container_of(_b, struct isp_video_buf, vb)
109 #define FIMC_ISP_MAX_BUFS 4
112 * struct fimc_is_video - fimc-is video device structure
113 * @vdev: video_device structure
114 * @type: video device type (CAPTURE/OUTPUT)
115 * @pad: video device media (sink) pad
116 * @pending_buf_q: pending buffers queue head
117 * @active_buf_q: a queue head of buffers scheduled in hardware
118 * @vb_queue: vb2 buffer queue
119 * @active_buf_count: number of video buffers scheduled in hardware
120 * @frame_count: counter of frames dequeued to user space
121 * @reqbufs_count: number of buffers requested with REQBUFS ioctl
122 * @format: current pixel format
124 struct fimc_is_video {
125 struct exynos_video_entity ve;
126 enum v4l2_buf_type type;
127 struct media_pad pad;
128 struct list_head pending_buf_q;
129 struct list_head active_buf_q;
130 struct vb2_queue vb_queue;
131 unsigned int reqbufs_count;
132 unsigned int buf_count;
133 unsigned int buf_mask;
134 unsigned int frame_count;
136 struct isp_video_buf *buffers[FIMC_ISP_MAX_BUFS];
137 const struct fimc_fmt *format;
138 struct v4l2_pix_format_mplane pixfmt;
141 /* struct fimc_isp:state bit definitions */
142 #define ST_ISP_VID_CAP_BUF_PREP 0
143 #define ST_ISP_VID_CAP_STREAMING 1
146 * struct fimc_isp - FIMC-IS ISP data structure
147 * @pdev: pointer to FIMC-IS platform device
148 * @subdev: ISP v4l2_subdev
149 * @subdev_pads: the ISP subdev media pads
150 * @test_pattern: test pattern controls
151 * @ctrls: v4l2 controls structure
152 * @video_lock: mutex serializing video device and the subdev operations
153 * @cac_margin_x: horizontal CAC margin in pixels
154 * @cac_margin_y: vertical CAC margin in pixels
155 * @state: driver state flags
156 * @video_capture: the ISP block video capture device
159 struct platform_device *pdev;
160 struct v4l2_subdev subdev;
161 struct media_pad subdev_pads[FIMC_ISP_SD_PADS_NUM];
162 struct v4l2_mbus_framefmt src_fmt;
163 struct v4l2_mbus_framefmt sink_fmt;
164 struct v4l2_ctrl *test_pattern;
165 struct fimc_isp_ctrls ctrls;
167 struct mutex video_lock;
168 struct mutex subdev_lock;
170 unsigned int cac_margin_x;
171 unsigned int cac_margin_y;
175 struct fimc_is_video video_capture;
178 #define ctrl_to_fimc_isp(_ctrl) \
179 container_of(ctrl->handler, struct fimc_isp, ctrls.handler)
183 int fimc_isp_subdev_create(struct fimc_isp *isp);
184 void fimc_isp_subdev_destroy(struct fimc_isp *isp);
185 void fimc_isp_irq_handler(struct fimc_is *is);
186 int fimc_is_create_controls(struct fimc_isp *isp);
187 int fimc_is_delete_controls(struct fimc_isp *isp);
188 const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,
189 const u32 *mbus_code, int index);
190 #endif /* FIMC_ISP_H_ */