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path: root/drivers/media/test-drivers/vimc/vimc-capture.c
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Diffstat (limited to 'drivers/media/test-drivers/vimc/vimc-capture.c')
-rw-r--r--drivers/media/test-drivers/vimc/vimc-capture.c270
1 files changed, 135 insertions, 135 deletions
diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c
index d1e2d0739c00..6c437802f91f 100644
--- a/drivers/media/test-drivers/vimc/vimc-capture.c
+++ b/drivers/media/test-drivers/vimc/vimc-capture.c
@@ -13,7 +13,7 @@
#include "vimc-common.h"
#include "vimc-streamer.h"
-struct vimc_cap_device {
+struct vimc_capture_device {
struct vimc_ent_device ved;
struct video_device vdev;
struct v4l2_pix_format format;
@@ -41,7 +41,7 @@ static const struct v4l2_pix_format fmt_default = {
.colorspace = V4L2_COLORSPACE_SRGB,
};
-struct vimc_cap_buffer {
+struct vimc_capture_buffer {
/*
* struct vb2_v4l2_buffer must be the first element
* the videobuf2 framework will allocate this struct based on
@@ -52,7 +52,7 @@ struct vimc_cap_buffer {
struct list_head list;
};
-static int vimc_cap_querycap(struct file *file, void *priv,
+static int vimc_capture_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
strscpy(cap->driver, VIMC_PDEV_NAME, sizeof(cap->driver));
@@ -63,26 +63,26 @@ static int vimc_cap_querycap(struct file *file, void *priv,
return 0;
}
-static void vimc_cap_get_format(struct vimc_ent_device *ved,
+static void vimc_capture_get_format(struct vimc_ent_device *ved,
struct v4l2_pix_format *fmt)
{
- struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device,
+ struct vimc_capture_device *vcapture = container_of(ved, struct vimc_capture_device,
ved);
- *fmt = vcap->format;
+ *fmt = vcapture->format;
}
-static int vimc_cap_g_fmt_vid_cap(struct file *file, void *priv,
+static int vimc_capture_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct vimc_cap_device *vcap = video_drvdata(file);
+ struct vimc_capture_device *vcapture = video_drvdata(file);
- f->fmt.pix = vcap->format;
+ f->fmt.pix = vcapture->format;
return 0;
}
-static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv,
+static int vimc_capture_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct v4l2_pix_format *format = &f->fmt.pix;
@@ -114,40 +114,40 @@ static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv,
return 0;
}
-static int vimc_cap_s_fmt_vid_cap(struct file *file, void *priv,
+static int vimc_capture_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct vimc_cap_device *vcap = video_drvdata(file);
+ struct vimc_capture_device *vcapture = video_drvdata(file);
int ret;
/* Do not change the format while stream is on */
- if (vb2_is_busy(&vcap->queue))
+ if (vb2_is_busy(&vcapture->queue))
return -EBUSY;
- ret = vimc_cap_try_fmt_vid_cap(file, priv, f);
+ ret = vimc_capture_try_fmt_vid_cap(file, priv, f);
if (ret)
return ret;
- dev_dbg(vcap->ved.dev, "%s: format update: "
+ dev_dbg(vcapture->ved.dev, "%s: format update: "
"old:%dx%d (0x%x, %d, %d, %d, %d) "
- "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcap->vdev.name,
+ "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcapture->vdev.name,
/* old */
- vcap->format.width, vcap->format.height,
- vcap->format.pixelformat, vcap->format.colorspace,
- vcap->format.quantization, vcap->format.xfer_func,
- vcap->format.ycbcr_enc,
+ vcapture->format.width, vcapture->format.height,
+ vcapture->format.pixelformat, vcapture->format.colorspace,
+ vcapture->format.quantization, vcapture->format.xfer_func,
+ vcapture->format.ycbcr_enc,
/* new */
f->fmt.pix.width, f->fmt.pix.height,
f->fmt.pix.pixelformat, f->fmt.pix.colorspace,
f->fmt.pix.quantization, f->fmt.pix.xfer_func,
f->fmt.pix.ycbcr_enc);
- vcap->format = f->fmt.pix;
+ vcapture->format = f->fmt.pix;
return 0;
}
-static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv,
+static int vimc_capture_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
const struct vimc_pix_map *vpix;
@@ -169,7 +169,7 @@ static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv,
return 0;
}
-static int vimc_cap_enum_framesizes(struct file *file, void *fh,
+static int vimc_capture_enum_framesizes(struct file *file, void *fh,
struct v4l2_frmsizeenum *fsize)
{
const struct vimc_pix_map *vpix;
@@ -193,7 +193,7 @@ static int vimc_cap_enum_framesizes(struct file *file, void *fh,
return 0;
}
-static const struct v4l2_file_operations vimc_cap_fops = {
+static const struct v4l2_file_operations vimc_capture_fops = {
.owner = THIS_MODULE,
.open = v4l2_fh_open,
.release = vb2_fop_release,
@@ -203,14 +203,14 @@ static const struct v4l2_file_operations vimc_cap_fops = {
.mmap = vb2_fop_mmap,
};
-static const struct v4l2_ioctl_ops vimc_cap_ioctl_ops = {
- .vidioc_querycap = vimc_cap_querycap,
+static const struct v4l2_ioctl_ops vimc_capture_ioctl_ops = {
+ .vidioc_querycap = vimc_capture_querycap,
- .vidioc_g_fmt_vid_cap = vimc_cap_g_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = vimc_cap_s_fmt_vid_cap,
- .vidioc_try_fmt_vid_cap = vimc_cap_try_fmt_vid_cap,
- .vidioc_enum_fmt_vid_cap = vimc_cap_enum_fmt_vid_cap,
- .vidioc_enum_framesizes = vimc_cap_enum_framesizes,
+ .vidioc_g_fmt_vid_cap = vimc_capture_g_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = vimc_capture_s_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = vimc_capture_try_fmt_vid_cap,
+ .vidioc_enum_fmt_vid_cap = vimc_capture_enum_fmt_vid_cap,
+ .vidioc_enum_framesizes = vimc_capture_enum_framesizes,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
@@ -223,40 +223,40 @@ static const struct v4l2_ioctl_ops vimc_cap_ioctl_ops = {
.vidioc_streamoff = vb2_ioctl_streamoff,
};
-static void vimc_cap_return_all_buffers(struct vimc_cap_device *vcap,
+static void vimc_capture_return_all_buffers(struct vimc_capture_device *vcapture,
enum vb2_buffer_state state)
{
- struct vimc_cap_buffer *vbuf, *node;
+ struct vimc_capture_buffer *vbuf, *node;
- spin_lock(&vcap->qlock);
+ spin_lock(&vcapture->qlock);
- list_for_each_entry_safe(vbuf, node, &vcap->buf_list, list) {
+ list_for_each_entry_safe(vbuf, node, &vcapture->buf_list, list) {
list_del(&vbuf->list);
vb2_buffer_done(&vbuf->vb2.vb2_buf, state);
}
- spin_unlock(&vcap->qlock);
+ spin_unlock(&vcapture->qlock);
}
-static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
+static int vimc_capture_start_streaming(struct vb2_queue *vq, unsigned int count)
{
- struct vimc_cap_device *vcap = vb2_get_drv_priv(vq);
- struct media_entity *entity = &vcap->vdev.entity;
+ struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq);
+ struct media_entity *entity = &vcapture->vdev.entity;
int ret;
- vcap->sequence = 0;
+ vcapture->sequence = 0;
/* Start the media pipeline */
- ret = media_pipeline_start(entity, &vcap->stream.pipe);
+ ret = media_pipeline_start(entity, &vcapture->stream.pipe);
if (ret) {
- vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED);
+ vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_QUEUED);
return ret;
}
- ret = vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 1);
+ ret = vimc_streamer_s_stream(&vcapture->stream, &vcapture->ved, 1);
if (ret) {
media_pipeline_stop(entity);
- vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED);
+ vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_QUEUED);
return ret;
}
@@ -267,65 +267,65 @@ static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
* Stop the stream engine. Any remaining buffers in the stream queue are
* dequeued and passed on to the vb2 framework marked as STATE_ERROR.
*/
-static void vimc_cap_stop_streaming(struct vb2_queue *vq)
+static void vimc_capture_stop_streaming(struct vb2_queue *vq)
{
- struct vimc_cap_device *vcap = vb2_get_drv_priv(vq);
+ struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq);
- vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 0);
+ vimc_streamer_s_stream(&vcapture->stream, &vcapture->ved, 0);
/* Stop the media pipeline */
- media_pipeline_stop(&vcap->vdev.entity);
+ media_pipeline_stop(&vcapture->vdev.entity);
/* Release all active buffers */
- vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_ERROR);
+ vimc_capture_return_all_buffers(vcapture, VB2_BUF_STATE_ERROR);
}
-static void vimc_cap_buf_queue(struct vb2_buffer *vb2_buf)
+static void vimc_capture_buf_queue(struct vb2_buffer *vb2_buf)
{
- struct vimc_cap_device *vcap = vb2_get_drv_priv(vb2_buf->vb2_queue);
- struct vimc_cap_buffer *buf = container_of(vb2_buf,
- struct vimc_cap_buffer,
+ struct vimc_capture_device *vcapture = vb2_get_drv_priv(vb2_buf->vb2_queue);
+ struct vimc_capture_buffer *buf = container_of(vb2_buf,
+ struct vimc_capture_buffer,
vb2.vb2_buf);
- spin_lock(&vcap->qlock);
- list_add_tail(&buf->list, &vcap->buf_list);
- spin_unlock(&vcap->qlock);
+ spin_lock(&vcapture->qlock);
+ list_add_tail(&buf->list, &vcapture->buf_list);
+ spin_unlock(&vcapture->qlock);
}
-static int vimc_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
+static int vimc_capture_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
unsigned int *nplanes, unsigned int sizes[],
struct device *alloc_devs[])
{
- struct vimc_cap_device *vcap = vb2_get_drv_priv(vq);
+ struct vimc_capture_device *vcapture = vb2_get_drv_priv(vq);
if (*nplanes)
- return sizes[0] < vcap->format.sizeimage ? -EINVAL : 0;
+ return sizes[0] < vcapture->format.sizeimage ? -EINVAL : 0;
/* We don't support multiplanes for now */
*nplanes = 1;
- sizes[0] = vcap->format.sizeimage;
+ sizes[0] = vcapture->format.sizeimage;
return 0;
}
-static int vimc_cap_buffer_prepare(struct vb2_buffer *vb)
+static int vimc_capture_buffer_prepare(struct vb2_buffer *vb)
{
- struct vimc_cap_device *vcap = vb2_get_drv_priv(vb->vb2_queue);
- unsigned long size = vcap->format.sizeimage;
+ struct vimc_capture_device *vcapture = vb2_get_drv_priv(vb->vb2_queue);
+ unsigned long size = vcapture->format.sizeimage;
if (vb2_plane_size(vb, 0) < size) {
- dev_err(vcap->ved.dev, "%s: buffer too small (%lu < %lu)\n",
- vcap->vdev.name, vb2_plane_size(vb, 0), size);
+ dev_err(vcapture->ved.dev, "%s: buffer too small (%lu < %lu)\n",
+ vcapture->vdev.name, vb2_plane_size(vb, 0), size);
return -EINVAL;
}
return 0;
}
-static const struct vb2_ops vimc_cap_qops = {
- .start_streaming = vimc_cap_start_streaming,
- .stop_streaming = vimc_cap_stop_streaming,
- .buf_queue = vimc_cap_buf_queue,
- .queue_setup = vimc_cap_queue_setup,
- .buf_prepare = vimc_cap_buffer_prepare,
+static const struct vb2_ops vimc_capture_qops = {
+ .start_streaming = vimc_capture_start_streaming,
+ .stop_streaming = vimc_capture_stop_streaming,
+ .buf_queue = vimc_capture_buf_queue,
+ .queue_setup = vimc_capture_queue_setup,
+ .buf_prepare = vimc_capture_buffer_prepare,
/*
* Since q->lock is set we can use the standard
* vb2_ops_wait_prepare/finish helper functions.
@@ -334,107 +334,107 @@ static const struct vb2_ops vimc_cap_qops = {
.wait_finish = vb2_ops_wait_finish,
};
-static const struct media_entity_operations vimc_cap_mops = {
+static const struct media_entity_operations vimc_capture_mops = {
.link_validate = vimc_vdev_link_validate,
};
-static void vimc_cap_release(struct vimc_ent_device *ved)
+static void vimc_capture_release(struct vimc_ent_device *ved)
{
- struct vimc_cap_device *vcap =
- container_of(ved, struct vimc_cap_device, ved);
+ struct vimc_capture_device *vcapture =
+ container_of(ved, struct vimc_capture_device, ved);
- media_entity_cleanup(vcap->ved.ent);
- kfree(vcap);
+ media_entity_cleanup(vcapture->ved.ent);
+ kfree(vcapture);
}
-static void vimc_cap_unregister(struct vimc_ent_device *ved)
+static void vimc_capture_unregister(struct vimc_ent_device *ved)
{
- struct vimc_cap_device *vcap =
- container_of(ved, struct vimc_cap_device, ved);
+ struct vimc_capture_device *vcapture =
+ container_of(ved, struct vimc_capture_device, ved);
- vb2_video_unregister_device(&vcap->vdev);
+ vb2_video_unregister_device(&vcapture->vdev);
}
-static void *vimc_cap_process_frame(struct vimc_ent_device *ved,
+static void *vimc_capture_process_frame(struct vimc_ent_device *ved,
const void *frame)
{
- struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device,
+ struct vimc_capture_device *vcapture = container_of(ved, struct vimc_capture_device,
ved);
- struct vimc_cap_buffer *vimc_buf;
+ struct vimc_capture_buffer *vimc_buf;
void *vbuf;
- spin_lock(&vcap->qlock);
+ spin_lock(&vcapture->qlock);
/* Get the first entry of the list */
- vimc_buf = list_first_entry_or_null(&vcap->buf_list,
+ vimc_buf = list_first_entry_or_null(&vcapture->buf_list,
typeof(*vimc_buf), list);
if (!vimc_buf) {
- spin_unlock(&vcap->qlock);
+ spin_unlock(&vcapture->qlock);
return ERR_PTR(-EAGAIN);
}
/* Remove this entry from the list */
list_del(&vimc_buf->list);
- spin_unlock(&vcap->qlock);
+ spin_unlock(&vcapture->qlock);
/* Fill the buffer */
vimc_buf->vb2.vb2_buf.timestamp = ktime_get_ns();
- vimc_buf->vb2.sequence = vcap->sequence++;
- vimc_buf->vb2.field = vcap->format.field;
+ vimc_buf->vb2.sequence = vcapture->sequence++;
+ vimc_buf->vb2.field = vcapture->format.field;
vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0);
- memcpy(vbuf, frame, vcap->format.sizeimage);
+ memcpy(vbuf, frame, vcapture->format.sizeimage);
/* Set it as ready */
vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0,
- vcap->format.sizeimage);
+ vcapture->format.sizeimage);
vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE);
return NULL;
}
-static struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
+static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc,
const char *vcfg_name)
{
struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
const struct vimc_pix_map *vpix;
- struct vimc_cap_device *vcap;
+ struct vimc_capture_device *vcapture;
struct video_device *vdev;
struct vb2_queue *q;
int ret;
- /* Allocate the vimc_cap_device struct */
- vcap = kzalloc(sizeof(*vcap), GFP_KERNEL);
- if (!vcap)
+ /* Allocate the vimc_capture_device struct */
+ vcapture = kzalloc(sizeof(*vcapture), GFP_KERNEL);
+ if (!vcapture)
return ERR_PTR(-ENOMEM);
/* Initialize the media entity */
- vcap->vdev.entity.name = vcfg_name;
- vcap->vdev.entity.function = MEDIA_ENT_F_IO_V4L;
- vcap->pad.flags = MEDIA_PAD_FL_SINK;
- ret = media_entity_pads_init(&vcap->vdev.entity,
- 1, &vcap->pad);
+ vcapture->vdev.entity.name = vcfg_name;
+ vcapture->vdev.entity.function = MEDIA_ENT_F_IO_V4L;
+ vcapture->pad.flags = MEDIA_PAD_FL_SINK;
+ ret = media_entity_pads_init(&vcapture->vdev.entity,
+ 1, &vcapture->pad);
if (ret)
- goto err_free_vcap;
+ goto err_free_vcapture;
/* Initialize the lock */
- mutex_init(&vcap->lock);
+ mutex_init(&vcapture->lock);
/* Initialize the vb2 queue */
- q = &vcap->queue;
+ q = &vcapture->queue;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_MMAP | VB2_DMABUF;
if (vimc_allocator == VIMC_ALLOCATOR_VMALLOC)
q->io_modes |= VB2_USERPTR;
- q->drv_priv = vcap;
- q->buf_struct_size = sizeof(struct vimc_cap_buffer);
- q->ops = &vimc_cap_qops;
+ q->drv_priv = vcapture;
+ q->buf_struct_size = sizeof(struct vimc_capture_buffer);
+ q->ops = &vimc_capture_qops;
q->mem_ops = vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG
? &vb2_dma_contig_memops : &vb2_vmalloc_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_buffers_needed = 2;
- q->lock = &vcap->lock;
+ q->lock = &vcapture->lock;
q->dev = v4l2_dev->dev;
ret = vb2_queue_init(q);
@@ -445,57 +445,57 @@ static struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
}
/* Initialize buffer list and its lock */
- INIT_LIST_HEAD(&vcap->buf_list);
- spin_lock_init(&vcap->qlock);
+ INIT_LIST_HEAD(&vcapture->buf_list);
+ spin_lock_init(&vcapture->qlock);
/* Set default frame format */
- vcap->format = fmt_default;
- vpix = vimc_pix_map_by_pixelformat(vcap->format.pixelformat);
- vcap->format.bytesperline = vcap->format.width * vpix->bpp;
- vcap->format.sizeimage = vcap->format.bytesperline *
- vcap->format.height;
+ vcapture->format = fmt_default;
+ vpix = vimc_pix_map_by_pixelformat(vcapture->format.pixelformat);
+ vcapture->format.bytesperline = vcapture->format.width * vpix->bpp;
+ vcapture->format.sizeimage = vcapture->format.bytesperline *
+ vcapture->format.height;
/* Fill the vimc_ent_device struct */
- vcap->ved.ent = &vcap->vdev.entity;
- vcap->ved.process_frame = vimc_cap_process_frame;
- vcap->ved.vdev_get_format = vimc_cap_get_format;
- vcap->ved.dev = vimc->mdev.dev;
+ vcapture->ved.ent = &vcapture->vdev.entity;
+ vcapture->ved.process_frame = vimc_capture_process_frame;
+ vcapture->ved.vdev_get_format = vimc_capture_get_format;
+ vcapture->ved.dev = vimc->mdev.dev;
/* Initialize the video_device struct */
- vdev = &vcap->vdev;
+ vdev = &vcapture->vdev;
vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING
| V4L2_CAP_IO_MC;
- vdev->entity.ops = &vimc_cap_mops;
+ vdev->entity.ops = &vimc_capture_mops;
vdev->release = video_device_release_empty;
- vdev->fops = &vimc_cap_fops;
- vdev->ioctl_ops = &vimc_cap_ioctl_ops;
- vdev->lock = &vcap->lock;
+ vdev->fops = &vimc_capture_fops;
+ vdev->ioctl_ops = &vimc_capture_ioctl_ops;
+ vdev->lock = &vcapture->lock;
vdev->queue = q;
vdev->v4l2_dev = v4l2_dev;
vdev->vfl_dir = VFL_DIR_RX;
strscpy(vdev->name, vcfg_name, sizeof(vdev->name));
- video_set_drvdata(vdev, &vcap->ved);
+ video_set_drvdata(vdev, &vcapture->ved);
/* Register the video_device with the v4l2 and the media framework */
ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
if (ret) {
dev_err(vimc->mdev.dev, "%s: video register failed (err=%d)\n",
- vcap->vdev.name, ret);
+ vcapture->vdev.name, ret);
goto err_clean_m_ent;
}
- return &vcap->ved;
+ return &vcapture->ved;
err_clean_m_ent:
- media_entity_cleanup(&vcap->vdev.entity);
-err_free_vcap:
- kfree(vcap);
+ media_entity_cleanup(&vcapture->vdev.entity);
+err_free_vcapture:
+ kfree(vcapture);
return ERR_PTR(ret);
}
-struct vimc_ent_type vimc_cap_type = {
- .add = vimc_cap_add,
- .unregister = vimc_cap_unregister,
- .release = vimc_cap_release
+struct vimc_ent_type vimc_capture_type = {
+ .add = vimc_capture_add,
+ .unregister = vimc_capture_unregister,
+ .release = vimc_capture_release
};