--- /dev/null
+/*
+ * 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-core.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-mediabus.h>
+#include <media/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_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_ */
Code Review / kvmfornfv.git / blobdiff