/* SPDX-License-Identifier: GPL-2.0-only */
/*
* 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 >
*/
#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
* @ ve : video_device structure and media pipeline
* @ 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
* @ reqbufs_count : the number of buffers requested in REQBUFS ioctl
* @ buf_count : number of video buffers scheduled in hardware
* @ buf_mask : bitmask of the queued video buffer indices
* @ frame_count : counter of frames dequeued to user space
* @ streaming : is streaming in progress ?
* @ buffers : buffer info
* @ format : current fimc pixel format
* @ pixfmt : 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
* @ subdev : ISP v4l2_subdev
* @ subdev_pads : the ISP subdev media pads
* @ src_fmt : source mediabus format
* @ sink_fmt : sink mediabus format
* @ test_pattern : test pattern controls
* @ ctrls : v4l2 controls structure
* @ video_lock : mutex serializing video device operations
* @ subdev_lock : mutex serializing 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 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_ */
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