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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver4 *5 * Copyright (C) 2013 Samsung Electronics Co., Ltd.6 *7 * Authors: Sylwester Nawrocki <s.nawrocki@samsung.com>8 * Younghwan Joo <yhwan.joo@samsung.com>9 */10#ifndef FIMC_ISP_H_11#define FIMC_ISP_H_12 13#include <linux/io.h>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>19 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>25 26extern int fimc_isp_debug;27 28#define isp_dbg(level, dev, fmt, arg...) \29 v4l2_dbg(level, fimc_isp_debug, dev, fmt, ## arg)30 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 835#define FIMC_ISP_SOURCE_HEIGHT_MIN 836#define FIMC_ISP_CAC_MARGIN_WIDTH 1637#define FIMC_ISP_CAC_MARGIN_HEIGHT 1238 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 400042#define FIMC_ISP_SOURCE_HEIGHT_MAX 400043 44#define FIMC_ISP_NUM_FORMATS 345#define FIMC_ISP_REQ_BUFS_MIN 246#define FIMC_ISP_REQ_BUFS_MAX 3247 48#define FIMC_ISP_SD_PAD_SINK 049#define FIMC_ISP_SD_PAD_SRC_FIFO 150#define FIMC_ISP_SD_PAD_SRC_DMA 251#define FIMC_ISP_SD_PADS_NUM 352#define FIMC_ISP_MAX_PLANES 153 54/**55 * struct fimc_isp_frame - source/target frame properties56 * @width: full image width57 * @height: full image height58 * @rect: crop/composition rectangle59 */60struct fimc_isp_frame {61 u16 width;62 u16 height;63 struct v4l2_rect rect;64};65 66struct fimc_isp_ctrls {67 struct v4l2_ctrl_handler handler;68 69 /* Auto white balance */70 struct v4l2_ctrl *auto_wb;71 /* Auto ISO control cluster */72 struct {73 struct v4l2_ctrl *auto_iso;74 struct v4l2_ctrl *iso;75 };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;84 /* Adjust - hue */85 struct v4l2_ctrl *hue;86 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;95 /* AFC */96 struct v4l2_ctrl *afc;97 /* ISP image effect */98 struct v4l2_ctrl *colorfx;99};100 101struct isp_video_buf {102 struct vb2_v4l2_buffer vb;103 dma_addr_t dma_addr[FIMC_ISP_MAX_PLANES];104 unsigned int index;105};106 107#define to_isp_video_buf(_b) container_of(_b, struct isp_video_buf, vb)108 109#define FIMC_ISP_MAX_BUFS 4110 111/**112 * struct fimc_is_video - fimc-is video device structure113 * @ve: video_device structure and media pipeline114 * @type: video device type (CAPTURE/OUTPUT)115 * @pad: video device media (sink) pad116 * @pending_buf_q: pending buffers queue head117 * @active_buf_q: a queue head of buffers scheduled in hardware118 * @vb_queue: vb2 buffer queue119 * @reqbufs_count: the number of buffers requested in REQBUFS ioctl120 * @buf_count: number of video buffers scheduled in hardware121 * @buf_mask: bitmask of the queued video buffer indices122 * @frame_count: counter of frames dequeued to user space123 * @streaming: is streaming in progress?124 * @buffers: buffer info125 * @format: current fimc pixel format126 * @pixfmt: current pixel format127 */128struct fimc_is_video {129 struct exynos_video_entity ve;130 enum v4l2_buf_type type;131 struct media_pad pad;132 struct list_head pending_buf_q;133 struct list_head active_buf_q;134 struct vb2_queue vb_queue;135 unsigned int reqbufs_count;136 unsigned int buf_count;137 unsigned int buf_mask;138 unsigned int frame_count;139 int streaming;140 struct isp_video_buf *buffers[FIMC_ISP_MAX_BUFS];141 const struct fimc_fmt *format;142 struct v4l2_pix_format_mplane pixfmt;143};144 145/* struct fimc_isp:state bit definitions */146#define ST_ISP_VID_CAP_BUF_PREP 0147#define ST_ISP_VID_CAP_STREAMING 1148 149/**150 * struct fimc_isp - FIMC-IS ISP data structure151 * @pdev: pointer to FIMC-IS platform device152 * @subdev: ISP v4l2_subdev153 * @subdev_pads: the ISP subdev media pads154 * @src_fmt: source mediabus format155 * @sink_fmt: sink mediabus format156 * @test_pattern: test pattern controls157 * @ctrls: v4l2 controls structure158 * @video_lock: mutex serializing video device operations159 * @subdev_lock: mutex serializing subdev operations160 * @cac_margin_x: horizontal CAC margin in pixels161 * @cac_margin_y: vertical CAC margin in pixels162 * @state: driver state flags163 * @video_capture: the ISP block video capture device164 */165struct fimc_isp {166 struct platform_device *pdev;167 struct v4l2_subdev subdev;168 struct media_pad subdev_pads[FIMC_ISP_SD_PADS_NUM];169 struct v4l2_mbus_framefmt src_fmt;170 struct v4l2_mbus_framefmt sink_fmt;171 struct v4l2_ctrl *test_pattern;172 struct fimc_isp_ctrls ctrls;173 174 struct mutex video_lock;175 struct mutex subdev_lock;176 177 unsigned int cac_margin_x;178 unsigned int cac_margin_y;179 180 unsigned long state;181 182 struct fimc_is_video video_capture;183};184 185#define ctrl_to_fimc_isp(_ctrl) \186 container_of(ctrl->handler, struct fimc_isp, ctrls.handler)187 188struct fimc_is;189 190int fimc_isp_subdev_create(struct fimc_isp *isp);191void fimc_isp_subdev_destroy(struct fimc_isp *isp);192void fimc_isp_irq_handler(struct fimc_is *is);193int fimc_is_create_controls(struct fimc_isp *isp);194int fimc_is_delete_controls(struct fimc_isp *isp);195const struct fimc_fmt *fimc_isp_find_format(const u32 *pixelformat,196 const u32 *mbus_code, int index);197#endif /* FIMC_ISP_H_ */198