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path: root/drivers/media/video/soc_camera.c
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Diffstat (limited to 'drivers/media/video/soc_camera.c')
-rw-r--r--drivers/media/video/soc_camera.c156
1 files changed, 128 insertions, 28 deletions
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index a66811b43710..46284489e4eb 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -34,6 +34,7 @@
#include <media/v4l2-ioctl.h>
#include <media/v4l2-dev.h>
#include <media/videobuf-core.h>
+#include <media/videobuf2-core.h>
#include <media/soc_mediabus.h>
/* Default to VGA resolution */
@@ -143,6 +144,10 @@ static int soc_camera_try_fmt_vid_cap(struct file *file, void *priv,
WARN_ON(priv != file->private_data);
+ /* Only single-plane capture is supported so far */
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
/* limit format to hardware capabilities */
return ici->ops->try_fmt(icd, f);
}
@@ -191,6 +196,15 @@ static int soc_camera_s_std(struct file *file, void *priv, v4l2_std_id *a)
return v4l2_subdev_call(sd, core, s_std, *a);
}
+static int soc_camera_enum_fsizes(struct file *file, void *fh,
+ struct v4l2_frmsizeenum *fsize)
+{
+ struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
+
+ return ici->ops->enum_fsizes(icd, fsize);
+}
+
static int soc_camera_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
@@ -203,11 +217,16 @@ static int soc_camera_reqbufs(struct file *file, void *priv,
if (icd->streamer && icd->streamer != file)
return -EBUSY;
- ret = videobuf_reqbufs(&icd->vb_vidq, p);
- if (ret < 0)
- return ret;
+ if (ici->ops->init_videobuf) {
+ ret = videobuf_reqbufs(&icd->vb_vidq, p);
+ if (ret < 0)
+ return ret;
+
+ ret = ici->ops->reqbufs(icd, p);
+ } else {
+ ret = vb2_reqbufs(&icd->vb2_vidq, p);
+ }
- ret = ici->ops->reqbufs(icd, p);
if (!ret && !icd->streamer)
icd->streamer = file;
@@ -218,36 +237,48 @@ static int soc_camera_querybuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
WARN_ON(priv != file->private_data);
- return videobuf_querybuf(&icd->vb_vidq, p);
+ if (ici->ops->init_videobuf)
+ return videobuf_querybuf(&icd->vb_vidq, p);
+ else
+ return vb2_querybuf(&icd->vb2_vidq, p);
}
static int soc_camera_qbuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
WARN_ON(priv != file->private_data);
if (icd->streamer != file)
return -EBUSY;
- return videobuf_qbuf(&icd->vb_vidq, p);
+ if (ici->ops->init_videobuf)
+ return videobuf_qbuf(&icd->vb_vidq, p);
+ else
+ return vb2_qbuf(&icd->vb2_vidq, p);
}
static int soc_camera_dqbuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
WARN_ON(priv != file->private_data);
if (icd->streamer != file)
return -EBUSY;
- return videobuf_dqbuf(&icd->vb_vidq, p, file->f_flags & O_NONBLOCK);
+ if (ici->ops->init_videobuf)
+ return videobuf_dqbuf(&icd->vb_vidq, p, file->f_flags & O_NONBLOCK);
+ else
+ return vb2_dqbuf(&icd->vb2_vidq, p, file->f_flags & O_NONBLOCK);
}
/* Always entered with .video_lock held */
@@ -362,13 +393,12 @@ static int soc_camera_set_fmt(struct soc_camera_device *icd,
icd->user_width = pix->width;
icd->user_height = pix->height;
+ icd->bytesperline = pix->bytesperline;
+ icd->sizeimage = pix->sizeimage;
icd->colorspace = pix->colorspace;
- icd->vb_vidq.field =
- icd->field = pix->field;
-
- if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- dev_warn(&icd->dev, "Attention! Wrong buf-type %d\n",
- f->type);
+ icd->field = pix->field;
+ if (ici->ops->init_videobuf)
+ icd->vb_vidq.field = pix->field;
dev_dbg(&icd->dev, "set width: %d height: %d\n",
icd->user_width, icd->user_height);
@@ -444,7 +474,13 @@ static int soc_camera_open(struct file *file)
if (ret < 0)
goto esfmt;
- ici->ops->init_videobuf(&icd->vb_vidq, icd);
+ if (ici->ops->init_videobuf) {
+ ici->ops->init_videobuf(&icd->vb_vidq, icd);
+ } else {
+ ret = ici->ops->init_videobuf2(&icd->vb2_vidq, icd);
+ if (ret < 0)
+ goto einitvb;
+ }
}
file->private_data = icd;
@@ -456,6 +492,7 @@ static int soc_camera_open(struct file *file)
* First four errors are entered with the .video_lock held
* and use_count == 1
*/
+einitvb:
esfmt:
pm_runtime_disable(&icd->vdev->dev);
eresume:
@@ -482,6 +519,8 @@ static int soc_camera_close(struct file *file)
pm_runtime_disable(&icd->vdev->dev);
ici->ops->remove(icd);
+ if (ici->ops->init_videobuf2)
+ vb2_queue_release(&icd->vb2_vidq);
soc_camera_power_set(icd, icl, 0);
}
@@ -510,6 +549,7 @@ static ssize_t soc_camera_read(struct file *file, char __user *buf,
static int soc_camera_mmap(struct file *file, struct vm_area_struct *vma)
{
struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
int err;
dev_dbg(&icd->dev, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
@@ -517,7 +557,10 @@ static int soc_camera_mmap(struct file *file, struct vm_area_struct *vma)
if (icd->streamer != file)
return -EBUSY;
- err = videobuf_mmap_mapper(&icd->vb_vidq, vma);
+ if (ici->ops->init_videobuf)
+ err = videobuf_mmap_mapper(&icd->vb_vidq, vma);
+ else
+ err = vb2_mmap(&icd->vb2_vidq, vma);
dev_dbg(&icd->dev, "vma start=0x%08lx, size=%ld, ret=%d\n",
(unsigned long)vma->vm_start,
@@ -535,7 +578,7 @@ static unsigned int soc_camera_poll(struct file *file, poll_table *pt)
if (icd->streamer != file)
return -EBUSY;
- if (list_empty(&icd->vb_vidq.stream)) {
+ if (ici->ops->init_videobuf && list_empty(&icd->vb_vidq.stream)) {
dev_err(&icd->dev, "Trying to poll with no queued buffers!\n");
return POLLERR;
}
@@ -543,6 +586,20 @@ static unsigned int soc_camera_poll(struct file *file, poll_table *pt)
return ici->ops->poll(file, pt);
}
+void soc_camera_lock(struct vb2_queue *vq)
+{
+ struct soc_camera_device *icd = vb2_get_drv_priv(vq);
+ mutex_lock(&icd->video_lock);
+}
+EXPORT_SYMBOL(soc_camera_lock);
+
+void soc_camera_unlock(struct vb2_queue *vq)
+{
+ struct soc_camera_device *icd = vb2_get_drv_priv(vq);
+ mutex_unlock(&icd->video_lock);
+}
+EXPORT_SYMBOL(soc_camera_unlock);
+
static struct v4l2_file_operations soc_camera_fops = {
.owner = THIS_MODULE,
.open = soc_camera_open,
@@ -561,6 +618,11 @@ static int soc_camera_s_fmt_vid_cap(struct file *file, void *priv,
WARN_ON(priv != file->private_data);
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ dev_warn(&icd->dev, "Wrong buf-type %d\n", f->type);
+ return -EINVAL;
+ }
+
if (icd->streamer && icd->streamer != file)
return -EBUSY;
@@ -604,16 +666,16 @@ static int soc_camera_g_fmt_vid_cap(struct file *file, void *priv,
WARN_ON(priv != file->private_data);
+ if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
pix->width = icd->user_width;
pix->height = icd->user_height;
- pix->field = icd->vb_vidq.field;
+ pix->bytesperline = icd->bytesperline;
+ pix->sizeimage = icd->sizeimage;
+ pix->field = icd->field;
pix->pixelformat = icd->current_fmt->host_fmt->fourcc;
- pix->bytesperline = soc_mbus_bytes_per_line(pix->width,
- icd->current_fmt->host_fmt);
pix->colorspace = icd->colorspace;
- if (pix->bytesperline < 0)
- return pix->bytesperline;
- pix->sizeimage = pix->height * pix->bytesperline;
dev_dbg(&icd->dev, "current_fmt->fourcc: 0x%08x\n",
icd->current_fmt->host_fmt->fourcc);
return 0;
@@ -635,6 +697,7 @@ static int soc_camera_streamon(struct file *file, void *priv,
enum v4l2_buf_type i)
{
struct soc_camera_device *icd = file->private_data;
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
int ret;
@@ -646,10 +709,14 @@ static int soc_camera_streamon(struct file *file, void *priv,
if (icd->streamer != file)
return -EBUSY;
- v4l2_subdev_call(sd, video, s_stream, 1);
-
/* This calls buf_queue from host driver's videobuf_queue_ops */
- ret = videobuf_streamon(&icd->vb_vidq);
+ if (ici->ops->init_videobuf)
+ ret = videobuf_streamon(&icd->vb_vidq);
+ else
+ ret = vb2_streamon(&icd->vb2_vidq, i);
+
+ if (!ret)
+ v4l2_subdev_call(sd, video, s_stream, 1);
return ret;
}
@@ -659,6 +726,7 @@ static int soc_camera_streamoff(struct file *file, void *priv,
{
struct soc_camera_device *icd = file->private_data;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+ struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
WARN_ON(priv != file->private_data);
@@ -672,7 +740,10 @@ static int soc_camera_streamoff(struct file *file, void *priv,
* This calls buf_release from host driver's videobuf_queue_ops for all
* remaining buffers. When the last buffer is freed, stop capture
*/
- videobuf_streamoff(&icd->vb_vidq);
+ if (ici->ops->init_videobuf)
+ videobuf_streamoff(&icd->vb_vidq);
+ else
+ vb2_streamoff(&icd->vb2_vidq, i);
v4l2_subdev_call(sd, video, s_stream, 0);
@@ -1175,6 +1246,31 @@ static int default_s_parm(struct soc_camera_device *icd,
return v4l2_subdev_call(sd, video, s_parm, parm);
}
+static int default_enum_fsizes(struct soc_camera_device *icd,
+ struct v4l2_frmsizeenum *fsize)
+{
+ int ret;
+ struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
+ const struct soc_camera_format_xlate *xlate;
+ __u32 pixfmt = fsize->pixel_format;
+ struct v4l2_frmsizeenum fsize_mbus = *fsize;
+
+ xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
+ if (!xlate)
+ return -EINVAL;
+ /* map xlate-code to pixel_format, sensor only handle xlate-code*/
+ fsize_mbus.pixel_format = xlate->code;
+
+ ret = v4l2_subdev_call(sd, video, enum_mbus_fsizes, &fsize_mbus);
+ if (ret < 0)
+ return ret;
+
+ *fsize = fsize_mbus;
+ fsize->pixel_format = pixfmt;
+
+ return 0;
+}
+
static void soc_camera_device_init(struct device *dev, void *pdata)
{
dev->platform_data = pdata;
@@ -1192,8 +1288,9 @@ int soc_camera_host_register(struct soc_camera_host *ici)
!ici->ops->set_fmt ||
!ici->ops->set_bus_param ||
!ici->ops->querycap ||
- !ici->ops->init_videobuf ||
- !ici->ops->reqbufs ||
+ ((!ici->ops->init_videobuf ||
+ !ici->ops->reqbufs) &&
+ !ici->ops->init_videobuf2) ||
!ici->ops->add ||
!ici->ops->remove ||
!ici->ops->poll ||
@@ -1210,6 +1307,8 @@ int soc_camera_host_register(struct soc_camera_host *ici)
ici->ops->set_parm = default_s_parm;
if (!ici->ops->get_parm)
ici->ops->get_parm = default_g_parm;
+ if (!ici->ops->enum_fsizes)
+ ici->ops->enum_fsizes = default_enum_fsizes;
mutex_lock(&list_lock);
list_for_each_entry(ix, &hosts, list) {
@@ -1317,6 +1416,7 @@ static const struct v4l2_ioctl_ops soc_camera_ioctl_ops = {
.vidioc_g_input = soc_camera_g_input,
.vidioc_s_input = soc_camera_s_input,
.vidioc_s_std = soc_camera_s_std,
+ .vidioc_enum_framesizes = soc_camera_enum_fsizes,
.vidioc_reqbufs = soc_camera_reqbufs,
.vidioc_try_fmt_vid_cap = soc_camera_try_fmt_vid_cap,
.vidioc_querybuf = soc_camera_querybuf,