diff options
Diffstat (limited to 'drivers/media/platform/exynos4-is/fimc-isp.h')
| -rw-r--r-- | drivers/media/platform/exynos4-is/fimc-isp.h | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/drivers/media/platform/exynos4-is/fimc-isp.h b/drivers/media/platform/exynos4-is/fimc-isp.h new file mode 100644 index 000000000..3cdd52491 --- /dev/null +++ b/drivers/media/platform/exynos4-is/fimc-isp.h @@ -0,0 +1,193 @@ +/* + * 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-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 + * @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 + * @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 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_ */ |