system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-15 07:47:34 +00:00
Code Issues Packages Projects Releases Wiki Activity

media: test-drivers: Set REQBUFS minimum number of buffers

Browse source 
Instead of using 'min_queued_buffers' field to specify the
minimum number of buffers to be allocated when calling REQBUF
use 'min_reqbufs_allocation' field which is dedicated to this
purpose.

Change the minimum requested buffers to 2 for vivid-meta-out
and vivid-touch-cap drivers when creating the queues.
That allows to remove code which prohibe to allocate only
one buffer in their respective queue setup functions.

While at it rename vivid_create_queue() parameter.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Benjamin Gaignard 2024-03-18 14:48:56 +01:00 committed by Hans Verkuil
parent 6662edcd32
commit f5131d5ce4
4 changed files with 5 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/media/test-drivers/vimc/vimc-capture.c
View file

@ -432,7 +432,7 @@ static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc,
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_queued_buffers = 2;
q->min_reqbufs_allocation = 2;
q->lock = &vcapture->lock;
q->dev = v4l2_dev->dev;

8
drivers/media/test-drivers/vivid/vivid-core.c
View file

@ -861,7 +861,7 @@ static const struct media_device_ops vivid_media_ops = {
static int vivid_create_queue(struct vivid_dev *dev,
struct vb2_queue *q,
u32 buf_type,
unsigned int min_queued_buffers,
unsigned int min_reqbufs_allocation,
const struct vb2_ops *ops)
{
if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->multiplanar)
@ -898,7 +898,7 @@ static int vivid_create_queue(struct vivid_dev *dev,
q->mem_ops = allocators[dev->inst] == 1 ? &vb2_dma_contig_memops :
&vb2_vmalloc_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->min_queued_buffers = supports_requests[dev->inst] ? 0 : min_queued_buffers;
q->min_reqbufs_allocation = min_reqbufs_allocation;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = supports_requests[dev->inst];
@ -1364,7 +1364,7 @@ static int vivid_create_queues(struct vivid_dev *dev)
if (dev->has_meta_out) {
/* initialize meta_out queue */
ret = vivid_create_queue(dev, &dev->vb_meta_out_q,
V4L2_BUF_TYPE_META_OUTPUT, 1,
V4L2_BUF_TYPE_META_OUTPUT, 2,
&vivid_meta_out_qops);
if (ret)
return ret;
@ -1373,7 +1373,7 @@ static int vivid_create_queues(struct vivid_dev *dev)
if (dev->has_touch_cap) {
/* initialize touch_cap queue */
ret = vivid_create_queue(dev, &dev->vb_touch_cap_q,
V4L2_BUF_TYPE_VIDEO_CAPTURE, 1,
V4L2_BUF_TYPE_VIDEO_CAPTURE, 2,
&vivid_touch_cap_qops);
if (ret)
return ret;

4
drivers/media/test-drivers/vivid/vivid-meta-out.c
View file

@ -18,7 +18,6 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int size = sizeof(struct vivid_meta_out_buf);
if (!vivid_is_webcam(dev))
@ -31,9 +30,6 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
if (q_num_bufs + *nbuffers < 2)
*nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
}

4
drivers/media/test-drivers/vivid/vivid-touch-cap.c
View file

@ -13,7 +13,6 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *f = &dev->tch_format;
unsigned int size = f->sizeimage;
@ -24,9 +23,6 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
if (q_num_bufs + *nbuffers < 2)
*nbuffers = 2 - q_num_bufs;
*nplanes = 1;
return 0;
}