diff options
Diffstat (limited to 'drivers/media/platform/exynos5-is/fimc-is-scaler.h')
| -rw-r--r-- | drivers/media/platform/exynos5-is/fimc-is-scaler.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/media/platform/exynos5-is/fimc-is-scaler.h b/drivers/media/platform/exynos5-is/fimc-is-scaler.h new file mode 100644 index 00000000000..97a9d0d72d3 --- /dev/null +++ b/drivers/media/platform/exynos5-is/fimc-is-scaler.h @@ -0,0 +1,106 @@ +/* + * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver + * + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Arun Kumar K <arun.kk@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_IS_SCALER_H_ +#define FIMC_IS_SCALER_H_ + +#include <linux/sizes.h> +#include <linux/io.h> +#include <linux/irqreturn.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/s5p_fimc.h> + +#include "fimc-is-core.h" + +#define SCALER_SD_PAD_SINK 0 +#define SCALER_SD_PAD_SRC_FIFO 1 +#define SCALER_SD_PAD_SRC_DMA 2 +#define SCALER_SD_PADS_NUM 3 + +#define SCALER_MAX_BUFS 32 +#define SCALER_MAX_PLANES 3 + +#define FIMC_IS_SCALER_REQ_BUFS_MIN 2 + +#define SCALER_DEF_WIDTH 1280 +#define SCALER_DEF_HEIGHT 720 +#define SCALER_MAX_WIDTH 4808 +#define SCALER_MAX_HEIGHT 3356 +#define SCALER_MIN_WIDTH 32 +#define SCALER_MIN_HEIGHT 32 + +/** + * struct fimc_is_scaler - fimc-is scaler structure + * @vfd: video device node + * @fh: v4l2 file handle + * @alloc_ctx: videobuf2 memory allocator context + * @subdev: fimc-is-scaler subdev + * @vd_pad: media pad for the output video node + * @subdev_pads: the subdev media pads + * @ctrl_handler: v4l2 control handler + * @video_lock: video lock mutex + * @event_q: notifies scaler events + * @pipeline: pipeline instance for this scaler context + * @scaler_id: distinguishes scaler preview or scaler codec + * @vbq: vb2 buffers queue for ISP output video node + * @wait_queue: list holding buffers waiting to be queued to HW + * @wait_queue_cnt: wait queue number of buffers + * @run_queue: list holding buffers queued to HW + * @run_queue_cnt: run queue number of buffers + * @capture_bufs: scaler capture buffers array + * @fmt: capture plane format for scaler + * @width: user configured output width + * @height: user configured output height + * @capture_state: state of the capture video node operations + */ +struct fimc_is_scaler { + struct video_device vfd; + struct v4l2_fh fh; + struct vb2_alloc_ctx *alloc_ctx; + struct v4l2_subdev subdev; + struct media_pad vd_pad; + struct media_pad subdev_pads[SCALER_SD_PADS_NUM]; + struct v4l2_mbus_framefmt subdev_fmt; + struct v4l2_ctrl_handler ctrl_handler; + + struct mutex video_lock; + wait_queue_head_t event_q; + + struct fimc_is_pipeline *pipeline; + enum fimc_is_scaler_id scaler_id; + + struct vb2_queue vbq; + struct list_head wait_queue; + unsigned int wait_queue_cnt; + struct list_head run_queue; + unsigned int run_queue_cnt; + + const struct fimc_is_fmt *fmt; + unsigned int width; + unsigned int height; + unsigned long capture_state; +}; + +int fimc_is_scaler_subdev_create(struct fimc_is_scaler *ctx, + enum fimc_is_scaler_id scaler_id, + struct vb2_alloc_ctx *alloc_ctx, + struct fimc_is_pipeline *pipeline); +void fimc_is_scaler_subdev_destroy(struct fimc_is_scaler *scaler); + +#endif /* FIMC_IS_SCALER_H_ */ |