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Date: Fri, 12 Apr 2019 19:48:22 -0300
From: Helen Koike <helen.koike@...labora.com>
To: André Almeida <andrealmeid@...labora.com>,
linux-media@...r.kernel.org
Cc: mchehab@...nel.org, hverkuil@...all.nl, lucmaga@...il.com,
linux-kernel@...r.kernel.org, kernel@...labora.com,
lkcamp@...ts.libreplanetbr.org
Subject: Re: [PATCH v2 03/15] media: vimc: cap: Change vimc_cap_device.format
type
On 3/27/19 12:17 PM, André Almeida wrote:
> vimc_cap_device.format field was defined as v4l2_pix_format,
> a struct to handle single planar pixel formats. It turns out that
> if v4l2_format is used, we can reuse functions for both
> v4l2_pix_format and v4l2_pix_format_mplane. This change will
> help at future commits implementing multiplanar pixel
> format support.
>
> Signed-off-by: André Almeida <andrealmeid@...labora.com>
Acked-by: Helen Koike <helen.koike@...labora.com>
> ---
> Change in v2: none
>
> drivers/media/platform/vimc/vimc-capture.c | 56 ++++++++++++----------
> 1 file changed, 31 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
> index e7d0fc2228a6..de52f20b5c85 100644
> --- a/drivers/media/platform/vimc/vimc-capture.c
> +++ b/drivers/media/platform/vimc/vimc-capture.c
> @@ -58,7 +58,7 @@ struct vimc_cap_device {
> struct vimc_ent_device ved;
> struct video_device vdev;
> struct device *dev;
> - struct v4l2_pix_format format;
> + struct v4l2_format format;
> struct vb2_queue queue;
> struct list_head buf_list;
> /*
> @@ -74,12 +74,13 @@ struct vimc_cap_device {
> struct vimc_stream stream;
> };
>
> -static const struct v4l2_pix_format fmt_default = {
> - .width = 640,
> - .height = 480,
> - .pixelformat = V4L2_PIX_FMT_RGB24,
> - .field = V4L2_FIELD_NONE,
> - .colorspace = V4L2_COLORSPACE_DEFAULT,
> +static const struct v4l2_format fmt_default = {
> + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
> + .fmt.pix.width = 640,
> + .fmt.pix.height = 480,
> + .fmt.pix.pixelformat = V4L2_PIX_FMT_RGB24,
> + .fmt.pix.field = V4L2_FIELD_NONE,
> + .fmt.pix.colorspace = V4L2_COLORSPACE_DEFAULT,
> };
>
> struct vimc_cap_buffer {
> @@ -110,7 +111,7 @@ static void vimc_cap_get_format(struct vimc_ent_device *ved,
> struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device,
> ved);
>
> - *fmt = vcap->format;
> + *fmt = vcap->format.fmt.pix;
> }
>
> static int vimc_cap_g_fmt_vid_cap(struct file *file, void *priv,
> @@ -118,7 +119,7 @@ static int vimc_cap_g_fmt_vid_cap(struct file *file, void *priv,
> {
> struct vimc_cap_device *vcap = video_drvdata(file);
>
> - f->fmt.pix = vcap->format;
> + *f = vcap->format;
>
> return 0;
> }
> @@ -136,13 +137,13 @@ static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv,
> vimc_colorimetry_clamp(format);
>
> if (format->field == V4L2_FIELD_ANY)
> - format->field = fmt_default.field;
> + format->field = fmt_default.fmt.pix.field;
>
> /* TODO: Add support for custom bytesperline values */
>
> /* Don't accept a pixelformat that is not on the table */
> if (!v4l2_format_info(format->pixelformat))
> - format->pixelformat = fmt_default.pixelformat;
> + format->pixelformat = fmt_default.fmt.pix.pixelformat;
>
> return v4l2_fill_pixfmt(format, format->pixelformat,
> format->width, format->height);
> @@ -163,17 +164,19 @@ static int vimc_cap_s_fmt_vid_cap(struct file *file, void *priv,
> "old:%dx%d (0x%x, %d, %d, %d, %d) "
> "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcap->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,
> + vcap->format.fmt.pix.width, vcap->format.fmt.pix.height,
> + vcap->format.fmt.pix.pixelformat,
> + vcap->format.fmt.pix.colorspace,
> + vcap->format.fmt.pix.quantization,
> + vcap->format.fmt.pix.xfer_func,
> + vcap->format.fmt.pix.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;
> + vcap->format = *f;
>
> return 0;
> }
> @@ -279,7 +282,8 @@ static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
> return ret;
> }
>
> - vcap->stream.producer_pixfmt = vcap->format.pixelformat;
> + vcap->stream.producer_pixfmt = vcap->format.fmt.pix.pixelformat;
> +
> ret = vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 1);
> if (ret) {
> media_pipeline_stop(entity);
> @@ -326,10 +330,10 @@ static int vimc_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
> struct vimc_cap_device *vcap = vb2_get_drv_priv(vq);
>
> if (*nplanes)
> - return sizes[0] < vcap->format.sizeimage ? -EINVAL : 0;
> + return sizes[0] < vcap->format.fmt.pix.sizeimage ? -EINVAL : 0;
> /* We don't support multiplanes for now */
> *nplanes = 1;
> - sizes[0] = vcap->format.sizeimage;
> + sizes[0] = vcap->format.fmt.pix.sizeimage;
>
> return 0;
> }
> @@ -337,7 +341,7 @@ static int vimc_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
> static int vimc_cap_buffer_prepare(struct vb2_buffer *vb)
> {
> struct vimc_cap_device *vcap = vb2_get_drv_priv(vb->vb2_queue);
> - unsigned long size = vcap->format.sizeimage;
> + unsigned long size = vcap->format.fmt.pix.sizeimage;
>
> if (vb2_plane_size(vb, 0) < size) {
> dev_err(vcap->dev, "%s: buffer too small (%lu < %lu)\n",
> @@ -412,15 +416,15 @@ static void *vimc_cap_process_frame(struct vimc_ent_device *ved,
> /* 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.field = vcap->format.fmt.pix.field;
>
> vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0);
>
> - memcpy(vbuf, frame, vcap->format.sizeimage);
> + memcpy(vbuf, frame, vcap->format.fmt.pix.sizeimage);
>
> /* Set it as ready */
> vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0,
> - vcap->format.sizeimage);
> + vcap->format.fmt.pix.sizeimage);
> vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE);
> return NULL;
> }
> @@ -484,8 +488,10 @@ static int vimc_cap_comp_bind(struct device *comp, struct device *master,
>
> /* Set default frame format */
> vcap->format = fmt_default;
> - v4l2_fill_pixfmt(&vcap->format, vcap->format.pixelformat,
> - vcap->format.width, vcap->format.height);
> + v4l2_fill_pixfmt(&vcap->format.fmt.pix,
> + vcap->format.fmt.pix.pixelformat,
> + vcap->format.fmt.pix.width,
> + vcap->format.fmt.pix.height);
>
> /* Fill the vimc_ent_device struct */
> vcap->ved.ent = &vcap->vdev.entity;
>
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