@@ -638,7 +638,7 @@ static int mx1_camera_try_fmt(struct soc_camera_device *icd,
return 0;
}
-static int mx1_camera_reqbufs(struct soc_camera_file *icf,
+static int mx1_camera_reqbufs(struct soc_camera_device *icd,
struct v4l2_requestbuffers *p)
{
int i;
@@ -650,7 +650,7 @@ static int mx1_camera_reqbufs(struct soc_camera_file *icf,
* it hadn't triggered
*/
for (i = 0; i < p->count; i++) {
- struct mx1_buffer *buf = container_of(icf->vb_vidq.bufs[i],
+ struct mx1_buffer *buf = container_of(icd->vb_vidq.bufs[i],
struct mx1_buffer, vb);
buf->inwork = 0;
INIT_LIST_HEAD(&buf->vb.queue);
@@ -661,10 +661,10 @@ static int mx1_camera_reqbufs(struct soc_camera_file *icf,
static unsigned int mx1_camera_poll(struct file *file, poll_table *pt)
{
- struct soc_camera_file *icf = file->private_data;
+ struct soc_camera_device *icd = file->private_data;
struct mx1_buffer *buf;
- buf = list_entry(icf->vb_vidq.stream.next, struct mx1_buffer,
+ buf = list_entry(icd->vb_vidq.stream.next, struct mx1_buffer,
vb.stream);
poll_wait(file, &buf->vb.done, pt);
@@ -976,7 +976,7 @@ static int mx3_camera_try_fmt(struct soc_camera_device *icd,
return ret;
}
-static int mx3_camera_reqbufs(struct soc_camera_file *icf,
+static int mx3_camera_reqbufs(struct soc_camera_device *icd,
struct v4l2_requestbuffers *p)
{
return 0;
@@ -984,9 +984,9 @@ static int mx3_camera_reqbufs(struct soc_camera_file *icf,
static unsigned int mx3_camera_poll(struct file *file, poll_table *pt)
{
- struct soc_camera_file *icf = file->private_data;
+ struct soc_camera_device *icd = file->private_data;
- return videobuf_poll_stream(file, &icf->vb_vidq, pt);
+ return videobuf_poll_stream(file, &icd->vb_vidq, pt);
}
static int mx3_camera_querycap(struct soc_camera_host *ici,
@@ -1539,7 +1539,7 @@ static int pxa_camera_try_fmt(struct soc_camera_device *icd,
return ret;
}
-static int pxa_camera_reqbufs(struct soc_camera_file *icf,
+static int pxa_camera_reqbufs(struct soc_camera_device *icd,
struct v4l2_requestbuffers *p)
{
int i;
@@ -1551,7 +1551,7 @@ static int pxa_camera_reqbufs(struct soc_camera_file *icf,
* it hadn't triggered
*/
for (i = 0; i < p->count; i++) {
- struct pxa_buffer *buf = container_of(icf->vb_vidq.bufs[i],
+ struct pxa_buffer *buf = container_of(icd->vb_vidq.bufs[i],
struct pxa_buffer, vb);
buf->inwork = 0;
INIT_LIST_HEAD(&buf->vb.queue);
@@ -1562,10 +1562,10 @@ static int pxa_camera_reqbufs(struct soc_camera_file *icf,
static unsigned int pxa_camera_poll(struct file *file, poll_table *pt)
{
- struct soc_camera_file *icf = file->private_data;
+ struct soc_camera_device *icd = file->private_data;
struct pxa_buffer *buf;
- buf = list_entry(icf->vb_vidq.stream.next, struct pxa_buffer,
+ buf = list_entry(icd->vb_vidq.stream.next, struct pxa_buffer,
vb.stream);
poll_wait(file, &buf->vb.done, pt);
@@ -1726,7 +1726,7 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
return ret;
}
-static int sh_mobile_ceu_reqbufs(struct soc_camera_file *icf,
+static int sh_mobile_ceu_reqbufs(struct soc_camera_device *icd,
struct v4l2_requestbuffers *p)
{
int i;
@@ -1740,7 +1740,7 @@ static int sh_mobile_ceu_reqbufs(struct soc_camera_file *icf,
for (i = 0; i < p->count; i++) {
struct sh_mobile_ceu_buffer *buf;
- buf = container_of(icf->vb_vidq.bufs[i],
+ buf = container_of(icd->vb_vidq.bufs[i],
struct sh_mobile_ceu_buffer, vb);
INIT_LIST_HEAD(&buf->vb.queue);
}
@@ -1750,10 +1750,10 @@ static int sh_mobile_ceu_reqbufs(struct soc_camera_file *icf,
static unsigned int sh_mobile_ceu_poll(struct file *file, poll_table *pt)
{
- struct soc_camera_file *icf = file->private_data;
+ struct soc_camera_device *icd = file->private_data;
struct sh_mobile_ceu_buffer *buf;
- buf = list_entry(icf->vb_vidq.stream.next,
+ buf = list_entry(icd->vb_vidq.stream.next,
struct sh_mobile_ceu_buffer, vb.stream);
poll_wait(file, &buf->vb.done, pt);
@@ -92,8 +92,7 @@ EXPORT_SYMBOL(soc_camera_apply_sensor_flags);
static int soc_camera_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ 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);
@@ -105,8 +104,7 @@ static int soc_camera_try_fmt_vid_cap(struct file *file, void *priv,
static int soc_camera_enum_input(struct file *file, void *priv,
struct v4l2_input *inp)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
int ret = 0;
if (inp->index != 0)
@@ -141,8 +139,7 @@ static int soc_camera_s_input(struct file *file, void *priv, unsigned int i)
static int soc_camera_s_std(struct file *file, void *priv, v4l2_std_id *a)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
return v4l2_subdev_call(sd, core, s_std, *a);
@@ -152,49 +149,61 @@ static int soc_camera_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
int ret;
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ 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);
- ici->ops->init_videobuf(&icf->vb_vidq, icd);
+ if (icd->streamer && icd->streamer != file)
+ return -EBUSY;
- ret = videobuf_reqbufs(&icf->vb_vidq, p);
+ ici->ops->init_videobuf(&icd->vb_vidq, icd);
+
+ ret = videobuf_reqbufs(&icd->vb_vidq, p);
if (ret < 0)
return ret;
- return ici->ops->reqbufs(icf, p);
+ ret = ici->ops->reqbufs(icd, p);
+ if (!ret && !icd->streamer)
+ icd->streamer = file;
+
+ return ret;
}
static int soc_camera_querybuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
- struct soc_camera_file *icf = file->private_data;
+ struct soc_camera_device *icd = file->private_data;
WARN_ON(priv != file->private_data);
- return videobuf_querybuf(&icf->vb_vidq, p);
+ return videobuf_querybuf(&icd->vb_vidq, p);
}
static int soc_camera_qbuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
- struct soc_camera_file *icf = file->private_data;
+ struct soc_camera_device *icd = file->private_data;
WARN_ON(priv != file->private_data);
- return videobuf_qbuf(&icf->vb_vidq, p);
+ if (icd->streamer != file)
+ return -EBUSY;
+
+ return videobuf_qbuf(&icd->vb_vidq, p);
}
static int soc_camera_dqbuf(struct file *file, void *priv,
struct v4l2_buffer *p)
{
- struct soc_camera_file *icf = file->private_data;
+ struct soc_camera_device *icd = file->private_data;
WARN_ON(priv != file->private_data);
- return videobuf_dqbuf(&icf->vb_vidq, p, file->f_flags & O_NONBLOCK);
+ if (icd->streamer != file)
+ return -EBUSY;
+
+ return videobuf_dqbuf(&icd->vb_vidq, p, file->f_flags & O_NONBLOCK);
}
/* Always entered with .video_lock held */
@@ -282,10 +291,9 @@ static void soc_camera_free_user_formats(struct soc_camera_device *icd)
((x) >> 24) & 0xff
/* Called with .vb_lock held, or from the first open(2), see comment there */
-static int soc_camera_set_fmt(struct soc_camera_file *icf,
+static int soc_camera_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
- struct soc_camera_device *icd = icf->icd;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct v4l2_pix_format *pix = &f->fmt.pix;
int ret;
@@ -311,7 +319,7 @@ static int soc_camera_set_fmt(struct soc_camera_file *icf,
icd->user_width = pix->width;
icd->user_height = pix->height;
icd->colorspace = pix->colorspace;
- icf->vb_vidq.field =
+ icd->vb_vidq.field =
icd->field = pix->field;
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
@@ -333,7 +341,6 @@ static int soc_camera_open(struct file *file)
dev);
struct soc_camera_link *icl = to_soc_camera_link(icd);
struct soc_camera_host *ici;
- struct soc_camera_file *icf;
int ret;
if (!icd->ops)
@@ -342,14 +349,9 @@ static int soc_camera_open(struct file *file)
ici = to_soc_camera_host(icd->dev.parent);
- icf = vmalloc(sizeof(*icf));
- if (!icf)
- return -ENOMEM;
-
if (!try_module_get(ici->ops->owner)) {
dev_err(&icd->dev, "Couldn't lock capture bus driver.\n");
- ret = -EINVAL;
- goto emgi;
+ return -EINVAL;
}
/*
@@ -358,7 +360,6 @@ static int soc_camera_open(struct file *file)
*/
mutex_lock(&icd->video_lock);
- icf->icd = icd;
icd->use_count++;
/* Now we really have to activate the camera */
@@ -403,12 +404,12 @@ static int soc_camera_open(struct file *file)
* apart from someone else calling open() simultaneously, but
* .video_lock is protecting us against it.
*/
- ret = soc_camera_set_fmt(icf, &f);
+ ret = soc_camera_set_fmt(icd, &f);
if (ret < 0)
goto esfmt;
}
- file->private_data = icf;
+ file->private_data = icd;
dev_dbg(&icd->dev, "camera device open\n");
mutex_unlock(&icd->video_lock);
@@ -430,15 +431,13 @@ epower:
icd->use_count--;
mutex_unlock(&icd->video_lock);
module_put(ici->ops->owner);
-emgi:
- vfree(icf);
+
return ret;
}
static int soc_camera_close(struct file *file)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
mutex_lock(&icd->video_lock);
@@ -455,12 +454,13 @@ static int soc_camera_close(struct file *file)
icl->power(icd->pdev, 0);
}
+ if (icd->streamer == file)
+ icd->streamer = NULL;
+
mutex_unlock(&icd->video_lock);
module_put(ici->ops->owner);
- vfree(icf);
-
dev_dbg(&icd->dev, "camera device close\n");
return 0;
@@ -469,8 +469,7 @@ static int soc_camera_close(struct file *file)
static ssize_t soc_camera_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
int err = -EINVAL;
dev_err(&icd->dev, "camera device read not implemented\n");
@@ -480,13 +479,15 @@ 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_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
int err;
dev_dbg(&icd->dev, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
- err = videobuf_mmap_mapper(&icf->vb_vidq, vma);
+ if (icd->streamer != file)
+ return -EBUSY;
+
+ err = videobuf_mmap_mapper(&icd->vb_vidq, vma);
dev_dbg(&icd->dev, "vma start=0x%08lx, size=%ld, ret=%d\n",
(unsigned long)vma->vm_start,
@@ -498,11 +499,13 @@ static int soc_camera_mmap(struct file *file, struct vm_area_struct *vma)
static unsigned int soc_camera_poll(struct file *file, poll_table *pt)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
- if (list_empty(&icf->vb_vidq.stream)) {
+ if (icd->streamer != file)
+ return -EBUSY;
+
+ if (list_empty(&icd->vb_vidq.stream)) {
dev_err(&icd->dev, "Trying to poll with no queued buffers!\n");
return POLLERR;
}
@@ -523,24 +526,29 @@ static struct v4l2_file_operations soc_camera_fops = {
static int soc_camera_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
int ret;
WARN_ON(priv != file->private_data);
- mutex_lock(&icf->vb_vidq.vb_lock);
+ if (icd->streamer && icd->streamer != file)
+ return -EBUSY;
- if (icf->vb_vidq.bufs[0]) {
+ mutex_lock(&icd->vb_vidq.vb_lock);
+
+ if (icd->vb_vidq.bufs[0]) {
dev_err(&icd->dev, "S_FMT denied: queue initialised\n");
ret = -EBUSY;
goto unlock;
}
- ret = soc_camera_set_fmt(icf, f);
+ ret = soc_camera_set_fmt(icd, f);
+
+ if (!ret && !icd->streamer)
+ icd->streamer = file;
unlock:
- mutex_unlock(&icf->vb_vidq.vb_lock);
+ mutex_unlock(&icd->vb_vidq.vb_lock);
return ret;
}
@@ -548,8 +556,7 @@ unlock:
static int soc_camera_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
const struct soc_mbus_pixelfmt *format;
WARN_ON(priv != file->private_data);
@@ -568,15 +575,14 @@ static int soc_camera_enum_fmt_vid_cap(struct file *file, void *priv,
static int soc_camera_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct v4l2_pix_format *pix = &f->fmt.pix;
WARN_ON(priv != file->private_data);
pix->width = icd->user_width;
pix->height = icd->user_height;
- pix->field = icf->vb_vidq.field;
+ pix->field = icd->vb_vidq.field;
pix->pixelformat = icd->current_fmt->host_fmt->fourcc;
pix->bytesperline = soc_mbus_bytes_per_line(pix->width,
icd->current_fmt->host_fmt);
@@ -592,8 +598,7 @@ static int soc_camera_g_fmt_vid_cap(struct file *file, void *priv,
static int soc_camera_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ 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);
@@ -605,8 +610,7 @@ static int soc_camera_querycap(struct file *file, void *priv,
static int soc_camera_streamon(struct file *file, void *priv,
enum v4l2_buf_type i)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
int ret;
@@ -615,12 +619,15 @@ static int soc_camera_streamon(struct file *file, void *priv,
if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
+ if (icd->streamer != file)
+ return -EBUSY;
+
mutex_lock(&icd->video_lock);
v4l2_subdev_call(sd, video, s_stream, 1);
/* This calls buf_queue from host driver's videobuf_queue_ops */
- ret = videobuf_streamon(&icf->vb_vidq);
+ ret = videobuf_streamon(&icd->vb_vidq);
mutex_unlock(&icd->video_lock);
@@ -630,8 +637,7 @@ static int soc_camera_streamon(struct file *file, void *priv,
static int soc_camera_streamoff(struct file *file, void *priv,
enum v4l2_buf_type i)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
WARN_ON(priv != file->private_data);
@@ -639,13 +645,16 @@ static int soc_camera_streamoff(struct file *file, void *priv,
if (i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
+ if (icd->streamer != file)
+ return -EBUSY;
+
mutex_lock(&icd->video_lock);
/*
* 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(&icf->vb_vidq);
+ videobuf_streamoff(&icd->vb_vidq);
v4l2_subdev_call(sd, video, s_stream, 0);
@@ -657,8 +666,7 @@ static int soc_camera_streamoff(struct file *file, void *priv,
static int soc_camera_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
int i;
@@ -689,8 +697,7 @@ static int soc_camera_queryctrl(struct file *file, void *priv,
static int soc_camera_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ 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;
@@ -709,8 +716,7 @@ static int soc_camera_g_ctrl(struct file *file, void *priv,
static int soc_camera_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ 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;
@@ -729,8 +735,7 @@ static int soc_camera_s_ctrl(struct file *file, void *priv,
static int soc_camera_cropcap(struct file *file, void *fh,
struct v4l2_cropcap *a)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
return ici->ops->cropcap(icd, a);
@@ -739,14 +744,13 @@ static int soc_camera_cropcap(struct file *file, void *fh,
static int soc_camera_g_crop(struct file *file, void *fh,
struct v4l2_crop *a)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
int ret;
- mutex_lock(&icf->vb_vidq.vb_lock);
+ mutex_lock(&icd->vb_vidq.vb_lock);
ret = ici->ops->get_crop(icd, a);
- mutex_unlock(&icf->vb_vidq.vb_lock);
+ mutex_unlock(&icd->vb_vidq.vb_lock);
return ret;
}
@@ -759,8 +763,7 @@ static int soc_camera_g_crop(struct file *file, void *fh,
static int soc_camera_s_crop(struct file *file, void *fh,
struct v4l2_crop *a)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
struct v4l2_rect *rect = &a->c;
struct v4l2_crop current_crop;
@@ -773,7 +776,7 @@ static int soc_camera_s_crop(struct file *file, void *fh,
rect->width, rect->height, rect->left, rect->top);
/* Cropping is allowed during a running capture, guard consistency */
- mutex_lock(&icf->vb_vidq.vb_lock);
+ mutex_lock(&icd->vb_vidq.vb_lock);
/* If get_crop fails, we'll let host and / or client drivers decide */
ret = ici->ops->get_crop(icd, ¤t_crop);
@@ -782,7 +785,7 @@ static int soc_camera_s_crop(struct file *file, void *fh,
if (ret < 0) {
dev_err(&icd->dev,
"S_CROP denied: getting current crop failed\n");
- } else if (icf->vb_vidq.bufs[0] &&
+ } else if (icd->vb_vidq.bufs[0] &&
(a->c.width != current_crop.c.width ||
a->c.height != current_crop.c.height)) {
dev_err(&icd->dev,
@@ -792,7 +795,7 @@ static int soc_camera_s_crop(struct file *file, void *fh,
ret = ici->ops->set_crop(icd, a);
}
- mutex_unlock(&icf->vb_vidq.vb_lock);
+ mutex_unlock(&icd->vb_vidq.vb_lock);
return ret;
}
@@ -800,8 +803,7 @@ static int soc_camera_s_crop(struct file *file, void *fh,
static int soc_camera_g_parm(struct file *file, void *fh,
struct v4l2_streamparm *a)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
if (ici->ops->get_parm)
@@ -813,8 +815,7 @@ static int soc_camera_g_parm(struct file *file, void *fh,
static int soc_camera_s_parm(struct file *file, void *fh,
struct v4l2_streamparm *a)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
if (ici->ops->set_parm)
@@ -826,8 +827,7 @@ static int soc_camera_s_parm(struct file *file, void *fh,
static int soc_camera_g_chip_ident(struct file *file, void *fh,
struct v4l2_dbg_chip_ident *id)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
return v4l2_subdev_call(sd, core, g_chip_ident, id);
@@ -837,8 +837,7 @@ static int soc_camera_g_chip_ident(struct file *file, void *fh,
static int soc_camera_g_register(struct file *file, void *fh,
struct v4l2_dbg_register *reg)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
return v4l2_subdev_call(sd, core, g_register, reg);
@@ -847,8 +846,7 @@ static int soc_camera_g_register(struct file *file, void *fh,
static int soc_camera_s_register(struct file *file, void *fh,
struct v4l2_dbg_register *reg)
{
- struct soc_camera_file *icf = file->private_data;
- struct soc_camera_device *icd = icf->icd;
+ struct soc_camera_device *icd = file->private_data;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
return v4l2_subdev_call(sd, core, s_register, reg);
@@ -21,6 +21,8 @@
extern struct bus_type soc_camera_bus_type;
+struct file;
+
struct soc_camera_device {
struct list_head list;
struct device dev;
@@ -41,10 +43,7 @@ struct soc_camera_device {
/* soc_camera.c private count. Only accessed with .video_lock held */
int use_count;
struct mutex video_lock; /* Protects device data */
-};
-
-struct soc_camera_file {
- struct soc_camera_device *icd;
+ struct file *streamer; /* stream owner */
struct videobuf_queue vb_vidq;
};
@@ -79,7 +78,7 @@ struct soc_camera_host_ops {
int (*try_fmt)(struct soc_camera_device *, struct v4l2_format *);
void (*init_videobuf)(struct videobuf_queue *,
struct soc_camera_device *);
- int (*reqbufs)(struct soc_camera_file *, struct v4l2_requestbuffers *);
+ int (*reqbufs)(struct soc_camera_device *, struct v4l2_requestbuffers *);
int (*querycap)(struct soc_camera_host *, struct v4l2_capability *);
int (*set_bus_param)(struct soc_camera_device *, __u32);
int (*get_ctrl)(struct soc_camera_device *, struct v4l2_control *);