fimc-is driver takes video data input from the ISP video node
which is added in this patch. This node accepts Bayer input
buffers which is given from the IS sensors.

Signed-off-by: Arun Kumar K <arun...@samsung.com>
Signed-off-by: Kilyeon Im <kilyeon...@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawro...@samsung.com>
---
 drivers/media/platform/exynos5-is/fimc-is-isp.c |  534 +++++++++++++++++++++++
 drivers/media/platform/exynos5-is/fimc-is-isp.h |   90 ++++
 2 files changed, 624 insertions(+)
 create mode 100644 drivers/media/platform/exynos5-is/fimc-is-isp.c
 create mode 100644 drivers/media/platform/exynos5-is/fimc-is-isp.h

diff --git a/drivers/media/platform/exynos5-is/fimc-is-isp.c 
b/drivers/media/platform/exynos5-is/fimc-is-isp.c
new file mode 100644
index 0000000..7bd603f
--- /dev/null
+++ b/drivers/media/platform/exynos5-is/fimc-is-isp.c
@@ -0,0 +1,534 @@
+/*
+ * Samsung EXYNOS5250 FIMC-IS (Imaging Subsystem) driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ *  Arun Kumar K <arun...@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.
+ */
+
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "fimc-is.h"
+
+#define ISP_DRV_NAME "fimc-is-isp"
+
+static const struct fimc_is_fmt formats[] = {
+       {
+               .name           = "Bayer GR-BG 8bits",
+               .fourcc         = V4L2_PIX_FMT_SGRBG8,
+               .depth          = { 8 },
+               .num_planes     = 1,
+       },
+       {
+               .name           = "Bayer GR-BG 10bits",
+               .fourcc         = V4L2_PIX_FMT_SGRBG10,
+               .depth          = { 16 },
+               .num_planes     = 1,
+       },
+       {
+               .name           = "Bayer GR-BG 12bits",
+               .fourcc         = V4L2_PIX_FMT_SGRBG12,
+               .depth          = { 16 },
+               .num_planes     = 1,
+       },
+};
+#define NUM_FORMATS ARRAY_SIZE(formats)
+
+static const struct fimc_is_fmt *find_format(struct v4l2_format *f)
+{
+       unsigned int i;
+
+       for (i = 0; i < NUM_FORMATS; i++)
+               if (formats[i].fourcc == f->fmt.pix_mp.pixelformat)
+                       return &formats[i];
+       return NULL;
+}
+
+static int isp_video_output_start_streaming(struct vb2_queue *vq,
+                                       unsigned int count)
+{
+       struct fimc_is_isp *isp = vb2_get_drv_priv(vq);
+
+       set_bit(STATE_RUNNING, &isp->output_state);
+       return 0;
+}
+
+static int isp_video_output_stop_streaming(struct vb2_queue *vq)
+{
+       struct fimc_is_isp *isp = vb2_get_drv_priv(vq);
+       struct fimc_is_buf *buf;
+
+       /* Release unused buffers */
+       while (!list_empty(&isp->wait_queue)) {
+               buf = fimc_is_isp_wait_queue_get(isp);
+               vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+       }
+       while (!list_empty(&isp->run_queue)) {
+               buf = fimc_is_isp_run_queue_get(isp);
+               vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+       }
+
+       clear_bit(STATE_RUNNING, &isp->output_state);
+       return 0;
+}
+
+static int isp_video_output_queue_setup(struct vb2_queue *vq,
+                       const struct v4l2_format *pfmt,
+                       unsigned int *num_buffers, unsigned int *num_planes,
+                       unsigned int sizes[], void *allocators[])
+{
+       struct fimc_is_isp *isp = vb2_get_drv_priv(vq);
+       const struct fimc_is_fmt *fmt = isp->fmt;
+       unsigned int wh, i;
+
+       if (!fmt)
+               return -EINVAL;
+
+       *num_planes = fmt->num_planes;
+       wh = isp->width * isp->height;
+
+       for (i = 0; i < *num_planes; i++) {
+               allocators[i] = isp->alloc_ctx;
+               sizes[i] = (wh * fmt->depth[i]) / 8;
+       }
+       return 0;
+}
+
+static int isp_video_output_buffer_init(struct vb2_buffer *vb)
+{
+       struct fimc_is_buf *buf = container_of(vb, struct fimc_is_buf, vb);
+
+       buf->paddr[0] = vb2_dma_contig_plane_dma_addr(vb, 0);
+       return 0;
+}
+
+static int isp_video_output_buffer_prepare(struct vb2_buffer *vb)
+{
+       struct vb2_queue *vq = vb->vb2_queue;
+       struct fimc_is_isp *isp = vb2_get_drv_priv(vq);
+       unsigned long size;
+
+       size = (isp->width * isp->height * isp->fmt->depth[0]) / 8;
+       if (vb2_plane_size(vb, 0) < size) {
+               v4l2_err(&isp->subdev, "User buffer too small (%ld < %ld)\n",
+                        vb2_plane_size(vb, 0), size);
+               return -EINVAL;
+       }
+       vb2_set_plane_payload(vb, 0, size);
+
+       return 0;
+}
+
+static void isp_video_output_buffer_queue(struct vb2_buffer *vb)
+{
+       struct vb2_queue *vq = vb->vb2_queue;
+       struct fimc_is_isp *isp = vb2_get_drv_priv(vq);
+       struct fimc_is_buf *buf = container_of(vb, struct fimc_is_buf, vb);
+
+       fimc_is_pipeline_buf_lock(isp->pipeline);
+       fimc_is_isp_wait_queue_add(isp, buf);
+       fimc_is_pipeline_buf_unlock(isp->pipeline);
+
+       /* Call shot command */
+       fimc_is_pipeline_shot_safe(isp->pipeline);
+}
+
+static const struct vb2_ops isp_video_output_qops = {
+       .queue_setup     = isp_video_output_queue_setup,
+       .buf_init        = isp_video_output_buffer_init,
+       .buf_prepare     = isp_video_output_buffer_prepare,
+       .buf_queue       = isp_video_output_buffer_queue,
+       .wait_prepare    = vb2_ops_wait_prepare,
+       .wait_finish     = vb2_ops_wait_finish,
+       .start_streaming = isp_video_output_start_streaming,
+       .stop_streaming  = isp_video_output_stop_streaming,
+};
+
+static const struct v4l2_file_operations isp_video_output_fops = {
+       .owner          = THIS_MODULE,
+       .open           = v4l2_fh_open,
+       .release        = vb2_fop_release,
+       .poll           = vb2_fop_poll,
+       .unlocked_ioctl = video_ioctl2,
+       .mmap           = vb2_fop_mmap,
+};
+
+/*
+ * Video node ioctl operations
+ */
+static int isp_querycap_output(struct file *file, void *priv,
+                                       struct v4l2_capability *cap)
+{
+       strncpy(cap->driver, ISP_DRV_NAME, sizeof(cap->driver) - 1);
+       strncpy(cap->card, ISP_DRV_NAME, sizeof(cap->card) - 1);
+       snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
+                       ISP_DRV_NAME);
+       cap->device_caps = V4L2_CAP_STREAMING;
+       cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+       return 0;
+}
+
+static int isp_enum_fmt_mplane(struct file *file, void *priv,
+                                    struct v4l2_fmtdesc *f)
+{
+       const struct fimc_is_fmt *fmt;
+
+       if (f->index >= NUM_FORMATS)
+               return -EINVAL;
+
+       fmt = &formats[f->index];
+       strlcpy(f->description, fmt->name, sizeof(f->description));
+       f->pixelformat = fmt->fourcc;
+
+       return 0;
+}
+
+static int isp_g_fmt_mplane(struct file *file, void *fh,
+                                 struct v4l2_format *f)
+{
+       struct fimc_is_isp *isp = video_drvdata(file);
+       struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
+       struct v4l2_plane_pix_format *plane_fmt = &pixm->plane_fmt[0];
+       const struct fimc_is_fmt *fmt = isp->fmt;
+
+       plane_fmt->bytesperline = (isp->width * fmt->depth[0]) / 8;
+       plane_fmt->sizeimage = plane_fmt->bytesperline * isp->height;
+       memset(plane_fmt->reserved, 0, sizeof(plane_fmt->reserved));
+
+       pixm->num_planes = fmt->num_planes;
+       pixm->pixelformat = fmt->fourcc;
+       pixm->width = isp->width;
+       pixm->height = isp->height;
+       pixm->field = V4L2_FIELD_NONE;
+       pixm->colorspace = V4L2_COLORSPACE_JPEG;
+       memset(pixm->reserved, 0, sizeof(pixm->reserved));
+
+       return 0;
+}
+
+static int isp_try_fmt_mplane(struct file *file, void *fh,
+               struct v4l2_format *f)
+{
+       const struct fimc_is_fmt *fmt;
+       struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
+       struct v4l2_plane_pix_format *plane_fmt = &pixm->plane_fmt[0];
+
+       fmt = find_format(f);
+       if (!fmt)
+               fmt = (struct fimc_is_fmt *) &formats[0];
+
+       v4l_bound_align_image(&pixm->width,
+                       ISP_MIN_WIDTH + SENSOR_WIDTH_PADDING,
+                       ISP_MAX_WIDTH + SENSOR_WIDTH_PADDING, 0,
+                       &pixm->height,
+                       ISP_MIN_HEIGHT + SENSOR_HEIGHT_PADDING,
+                       ISP_MAX_HEIGHT + SENSOR_HEIGHT_PADDING, 0,
+                       0);
+
+       plane_fmt->bytesperline = (pixm->width * fmt->depth[0]) / 8;
+       plane_fmt->sizeimage = (pixm->width * pixm->height *
+                               fmt->depth[0]) / 8;
+       memset(plane_fmt->reserved, 0, sizeof(plane_fmt->reserved));
+
+       pixm->num_planes = fmt->num_planes;
+       pixm->pixelformat = fmt->fourcc;
+       pixm->colorspace = V4L2_COLORSPACE_JPEG;
+       pixm->field = V4L2_FIELD_NONE;
+       memset(pixm->reserved, 0, sizeof(pixm->reserved));
+
+       return 0;
+}
+
+static int isp_s_fmt_mplane(struct file *file, void *priv,
+               struct v4l2_format *f)
+{
+       struct fimc_is_isp *isp = video_drvdata(file);
+       const struct fimc_is_fmt *fmt;
+       struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
+       int ret;
+
+       ret = isp_try_fmt_mplane(file, priv, f);
+       if (ret)
+               return ret;
+
+       /* Get format type */
+       fmt = find_format(f);
+       if (!fmt) {
+               fmt = &formats[0];
+               pixm->pixelformat = fmt->fourcc;
+               pixm->num_planes = fmt->num_planes;
+       }
+
+       isp->fmt = fmt;
+       isp->width = pixm->width;
+       isp->height = pixm->height;
+       isp->size_image = pixm->plane_fmt[0].sizeimage;
+       set_bit(STATE_INIT, &isp->output_state);
+       return 0;
+}
+
+static int isp_reqbufs(struct file *file, void *priv,
+               struct v4l2_requestbuffers *reqbufs)
+{
+       struct fimc_is_isp *isp = video_drvdata(file);
+       int ret;
+
+       reqbufs->count = max_t(u32, FIMC_IS_ISP_REQ_BUFS_MIN, reqbufs->count);
+       ret = vb2_reqbufs(&isp->vbq, reqbufs);
+       if (ret) {
+               v4l2_err(&isp->subdev, "vb2 req buffers failed\n");
+               return ret;
+       }
+
+       if (reqbufs->count < FIMC_IS_ISP_REQ_BUFS_MIN) {
+               reqbufs->count = 0;
+               vb2_reqbufs(&isp->vbq, reqbufs);
+               return -ENOMEM;
+       }
+       set_bit(STATE_BUFS_ALLOCATED, &isp->output_state);
+       return 0;
+}
+
+static const struct v4l2_ioctl_ops isp_video_output_ioctl_ops = {
+       .vidioc_querycap                = isp_querycap_output,
+       .vidioc_enum_fmt_vid_out_mplane = isp_enum_fmt_mplane,
+       .vidioc_try_fmt_vid_out_mplane  = isp_try_fmt_mplane,
+       .vidioc_s_fmt_vid_out_mplane    = isp_s_fmt_mplane,
+       .vidioc_g_fmt_vid_out_mplane    = isp_g_fmt_mplane,
+       .vidioc_reqbufs                 = isp_reqbufs,
+       .vidioc_querybuf                = vb2_ioctl_querybuf,
+       .vidioc_qbuf                    = vb2_ioctl_qbuf,
+       .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
+       .vidioc_streamon                = vb2_ioctl_streamon,
+       .vidioc_streamoff               = vb2_ioctl_streamoff,
+};
+
+static int isp_subdev_registered(struct v4l2_subdev *sd)
+{
+       struct fimc_is_isp *isp = v4l2_get_subdevdata(sd);
+       struct vb2_queue *q = &isp->vbq;
+       struct video_device *vfd = &isp->vfd;
+       int ret;
+
+       mutex_init(&isp->video_lock);
+
+       memset(vfd, 0, sizeof(*vfd));
+       snprintf(vfd->name, sizeof(vfd->name), "fimc-is-isp.output");
+
+       vfd->fops = &isp_video_output_fops;
+       vfd->ioctl_ops = &isp_video_output_ioctl_ops;
+       vfd->v4l2_dev = sd->v4l2_dev;
+       vfd->release = video_device_release_empty;
+       vfd->lock = &isp->video_lock;
+       vfd->queue = q;
+       vfd->vfl_dir = VFL_DIR_TX;
+       set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
+
+       memset(q, 0, sizeof(*q));
+       q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+       q->io_modes = VB2_MMAP | VB2_DMABUF;
+       q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+       q->ops = &isp_video_output_qops;
+       q->mem_ops = &vb2_dma_contig_memops;
+       q->buf_struct_size = sizeof(struct fimc_is_buf);
+       q->drv_priv = isp;
+
+       ret = vb2_queue_init(q);
+       if (ret < 0)
+               return ret;
+
+       isp->vd_pad.flags = MEDIA_PAD_FL_SINK;
+       ret = media_entity_init(&vfd->entity, 1, &isp->vd_pad, 0);
+       if (ret < 0)
+               return ret;
+
+       video_set_drvdata(vfd, isp);
+
+       ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
+       if (ret < 0) {
+               media_entity_cleanup(&vfd->entity);
+               return ret;
+       }
+
+       v4l2_info(sd->v4l2_dev, "Registered %s as /dev/%s\n",
+                 vfd->name, video_device_node_name(vfd));
+       return 0;
+}
+
+static void isp_subdev_unregistered(struct v4l2_subdev *sd)
+{
+       struct fimc_is_isp *isp = v4l2_get_subdevdata(sd);
+
+       if (isp && video_is_registered(&isp->vfd))
+               video_unregister_device(&isp->vfd);
+}
+
+static const struct v4l2_subdev_internal_ops isp_subdev_internal_ops = {
+       .registered = isp_subdev_registered,
+       .unregistered = isp_subdev_unregistered,
+};
+
+static struct fimc_is_sensor *fimc_is_get_sensor(struct fimc_is *is,
+               int sensor_id)
+{
+       int i;
+
+       for (i = 0; i < FIMC_IS_NUM_SENSORS; i++) {
+               if (is->sensor[i].drvdata->id == sensor_id)
+                       return &is->sensor[i];
+       }
+       return NULL;
+}
+
+static int isp_s_power(struct v4l2_subdev *sd, int on)
+{
+       struct fimc_is_isp *isp = v4l2_get_subdevdata(sd);
+       struct fimc_is *is = isp->pipeline->is;
+       struct v4l2_subdev *sensor_sd = isp->sensor_sd;
+       struct fimc_is_sensor *sensor;
+       const struct sensor_drv_data *sdata;
+       int ret;
+
+       if (!sensor_sd)
+               return -EINVAL;
+
+       if (on) {
+               ret = pm_runtime_get_sync(&is->pdev->dev);
+               if (ret < 0)
+                       return ret;
+
+               sdata = exynos5_is_sensor_get_drvdata(sensor_sd->dev->of_node);
+               sensor = fimc_is_get_sensor(is, sdata->id);
+
+               ret = fimc_is_pipeline_open(isp->pipeline, sensor);
+               if (ret)
+                       v4l2_err(&isp->subdev, "Pipeline open failed\n");
+       } else {
+               ret = fimc_is_pipeline_close(isp->pipeline);
+               if (ret)
+                       v4l2_err(&isp->subdev, "Pipeline close failed\n");
+               pm_runtime_put_sync(&is->pdev->dev);
+       }
+
+       return ret;
+}
+
+static struct v4l2_subdev_core_ops isp_core_ops = {
+       .s_power = isp_s_power,
+};
+
+static int isp_s_stream(struct v4l2_subdev *sd, int enable)
+{
+       struct fimc_is_isp *isp = v4l2_get_subdevdata(sd);
+       struct fimc_is *is = isp->pipeline->is;
+       struct v4l2_subdev *sensor_sd = isp->sensor_sd;
+       struct v4l2_subdev_format fmt;
+       const struct sensor_drv_data *sdata;
+       struct fimc_is_sensor *sensor;
+       int ret;
+
+       if (!sensor_sd)
+               return -EINVAL;
+
+       if (enable) {
+               sdata = exynos5_is_sensor_get_drvdata(sensor_sd->dev->of_node);
+               sensor = fimc_is_get_sensor(is, sdata->id);
+               /* Retrieve the sensor format */
+               fmt.pad = 0;
+               fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+               ret = v4l2_subdev_call(sensor_sd, pad, get_fmt, NULL, &fmt);
+               if (ret)
+                       return ret;
+
+               sensor->width = fmt.format.width - SENSOR_WIDTH_PADDING;
+               sensor->height = fmt.format.height - SENSOR_HEIGHT_PADDING;
+               sensor->pixel_width = fmt.format.width;
+               sensor->pixel_height = fmt.format.height;
+
+               /* Check sensor resolution match */
+               if ((sensor->pixel_width != isp->width) ||
+                       (sensor->pixel_height != isp->height)) {
+                       v4l2_err(sd, "Resolution mismatch\n");
+                       return -EPIPE;
+               }
+
+               ret = fimc_is_pipeline_start(isp->pipeline, 1);
+               if (ret)
+                       v4l2_err(sd, "Pipeline start failed.\n");
+       } else {
+               ret = fimc_is_pipeline_stop(isp->pipeline, 1);
+               if (ret)
+                       v4l2_err(sd, "Pipeline stop failed.\n");
+       }
+
+       return ret;
+}
+
+static const struct v4l2_subdev_video_ops isp_video_ops = {
+       .s_stream       = isp_s_stream,
+};
+
+static struct v4l2_subdev_ops isp_subdev_ops = {
+       .core = &isp_core_ops,
+       .video = &isp_video_ops,
+};
+
+int fimc_is_isp_subdev_create(struct fimc_is_isp *isp,
+               struct vb2_alloc_ctx *alloc_ctx,
+               struct fimc_is_pipeline *pipeline)
+{
+       struct v4l2_ctrl_handler *handler = &isp->ctrl_handler;
+       struct v4l2_subdev *sd = &isp->subdev;
+       int ret;
+
+       isp->alloc_ctx = alloc_ctx;
+       isp->pipeline = pipeline;
+       isp->fmt = &formats[1];
+       INIT_LIST_HEAD(&isp->wait_queue);
+       INIT_LIST_HEAD(&isp->run_queue);
+       isp->width = ISP_DEF_WIDTH;
+       isp->height = ISP_DEF_HEIGHT;
+
+       v4l2_subdev_init(sd, &isp_subdev_ops);
+       sd->owner = THIS_MODULE;
+       sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+       snprintf(sd->name, sizeof(sd->name), ISP_DRV_NAME);
+
+       isp->subdev_pads[ISP_SD_PAD_SINK_DMA].flags = MEDIA_PAD_FL_SINK;
+       isp->subdev_pads[ISP_SD_PAD_SINK_OTF].flags = MEDIA_PAD_FL_SINK;
+       isp->subdev_pads[ISP_SD_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE;
+       ret = media_entity_init(&sd->entity, ISP_SD_PADS_NUM,
+                       isp->subdev_pads, 0);
+       if (ret < 0)
+               return ret;
+
+       ret = v4l2_ctrl_handler_init(handler, 1);
+       if (handler->error)
+               goto err_ctrl;
+
+       sd->ctrl_handler = handler;
+       sd->internal_ops = &isp_subdev_internal_ops;
+       v4l2_set_subdevdata(sd, isp);
+
+       return 0;
+
+err_ctrl:
+       media_entity_cleanup(&sd->entity);
+       v4l2_ctrl_handler_free(handler);
+       return ret;
+}
+
+void fimc_is_isp_subdev_destroy(struct fimc_is_isp *isp)
+{
+       struct v4l2_subdev *sd = &isp->subdev;
+
+       v4l2_device_unregister_subdev(sd);
+       media_entity_cleanup(&sd->entity);
+       v4l2_ctrl_handler_free(&isp->ctrl_handler);
+       v4l2_set_subdevdata(sd, NULL);
+}
+
diff --git a/drivers/media/platform/exynos5-is/fimc-is-isp.h 
b/drivers/media/platform/exynos5-is/fimc-is-isp.h
new file mode 100644
index 0000000..fdb6d86
--- /dev/null
+++ b/drivers/media/platform/exynos5-is/fimc-is-isp.h
@@ -0,0 +1,90 @@
+/*
+ * Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ *  Arun Kumar K <arun...@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_ISP_H_
+#define FIMC_IS_ISP_H_
+
+#include "fimc-is-core.h"
+#include "fimc-is-pipeline.h"
+
+#define FIMC_IS_ISP_REQ_BUFS_MIN       2
+
+#define ISP_SD_PAD_SINK_DMA    0
+#define ISP_SD_PAD_SINK_OTF    1
+#define ISP_SD_PAD_SRC         2
+#define ISP_SD_PADS_NUM                3
+
+#define ISP_DEF_WIDTH          1296
+#define ISP_DEF_HEIGHT         732
+
+#define ISP_MAX_WIDTH          4808
+#define ISP_MAX_HEIGHT         3356
+#define ISP_MIN_WIDTH          32
+#define ISP_MIN_HEIGHT         32
+
+#define ISP_MAX_BUFS           2
+
+/**
+ * struct fimc_is_isp - ISP context
+ * @vfd: video device node
+ * @fh: v4l2 file handle
+ * @alloc_ctx: videobuf2 memory allocator context
+ * @subdev: fimc-is-isp 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
+ * @sensor_sd: sensor subdev used with this isp instance
+ * @pipeline: pipeline instance for this isp context
+ * @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
+ * @output_bufs: isp output buffers array
+ * @out_buf_cnt: number of output buffers in use
+ * @fmt: output plane format for isp
+ * @width: user configured input width
+ * @height: user configured input height
+ * @size_image: image size in bytes
+ * @output_state: state of the output video node operations
+ */
+struct fimc_is_isp {
+       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[ISP_SD_PADS_NUM];
+       struct v4l2_ctrl_handler        ctrl_handler;
+       struct mutex                    video_lock;
+
+       struct v4l2_subdev              *sensor_sd;
+       struct fimc_is_pipeline         *pipeline;
+
+       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 int                    size_image;
+       unsigned long                   output_state;
+};
+
+int fimc_is_isp_subdev_create(struct fimc_is_isp *isp,
+               struct vb2_alloc_ctx *alloc_ctx,
+               struct fimc_is_pipeline *pipeline);
+void fimc_is_isp_subdev_destroy(struct fimc_is_isp *isp);
+
+#endif /* FIMC_IS_ISP_H_ */
-- 
1.7.9.5

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