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Message-Id: <20221103163113.245462-11-paul.kocialkowski@bootlin.com>
Date: Thu, 3 Nov 2022 17:30:55 +0100
From: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev
Cc: Yong Deng <yong.deng@...ewell.com>,
Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Samuel Holland <samuel@...lland.org>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v7 10/28] media: sun6i-csi: Rework capture format management with helper
Remove the need for local copies of the v4l2 format and add a common
helper to prepare a format compatible with the driver, using the
relevant v4l2 helpers.
Report a raw colorspace for bayer-encoded pixel formats instead of SRGB.
Also cleanup the size bound defines while at it.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
Acked-by: Jernej Skrabec <jernej.skrabec@...il.com>
---
.../sunxi/sun6i-csi/sun6i_csi_capture.c | 122 +++++++++---------
.../sunxi/sun6i-csi/sun6i_csi_capture.h | 5 +
2 files changed, 66 insertions(+), 61 deletions(-)
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
index 8ff73ec0e216..f434d86f74de 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
@@ -20,12 +20,6 @@
#include "sun6i_csi_capture.h"
#include "sun6i_csi_reg.h"
-/* This is got from BSP sources. */
-#define MIN_WIDTH (32)
-#define MIN_HEIGHT (32)
-#define MAX_WIDTH (4800)
-#define MAX_HEIGHT (4800)
-
/* Helpers */
void sun6i_csi_capture_dimensions(struct sun6i_csi_device *csi_dev,
@@ -833,6 +827,55 @@ static const struct vb2_ops sun6i_csi_capture_queue_ops = {
/* V4L2 Device */
+static void sun6i_csi_capture_format_prepare(struct v4l2_format *format)
+{
+ struct v4l2_pix_format *pix_format = &format->fmt.pix;
+ const struct v4l2_format_info *info;
+ unsigned int width, height;
+
+ v4l_bound_align_image(&pix_format->width, SUN6I_CSI_CAPTURE_WIDTH_MIN,
+ SUN6I_CSI_CAPTURE_WIDTH_MAX, 1,
+ &pix_format->height, SUN6I_CSI_CAPTURE_HEIGHT_MIN,
+ SUN6I_CSI_CAPTURE_HEIGHT_MAX, 1, 0);
+
+ if (!sun6i_csi_capture_format_check(pix_format->pixelformat))
+ pix_format->pixelformat = sun6i_csi_capture_formats[0];
+
+ width = pix_format->width;
+ height = pix_format->height;
+
+ info = v4l2_format_info(pix_format->pixelformat);
+
+ switch (pix_format->pixelformat) {
+ case V4L2_PIX_FMT_NV12_16L16:
+ pix_format->bytesperline = width * 12 / 8;
+ pix_format->sizeimage = pix_format->bytesperline * height;
+ break;
+ case V4L2_PIX_FMT_JPEG:
+ pix_format->bytesperline = width;
+ pix_format->sizeimage = pix_format->bytesperline * height;
+ break;
+ default:
+ v4l2_fill_pixfmt(pix_format, pix_format->pixelformat,
+ width, height);
+ break;
+ }
+
+ if (pix_format->field == V4L2_FIELD_ANY)
+ pix_format->field = V4L2_FIELD_NONE;
+
+ if (pix_format->pixelformat == V4L2_PIX_FMT_JPEG)
+ pix_format->colorspace = V4L2_COLORSPACE_JPEG;
+ else if (info && info->pixel_enc == V4L2_PIXEL_ENC_BAYER)
+ pix_format->colorspace = V4L2_COLORSPACE_RAW;
+ else
+ pix_format->colorspace = V4L2_COLORSPACE_SRGB;
+
+ pix_format->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+ pix_format->quantization = V4L2_QUANTIZATION_DEFAULT;
+ pix_format->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+}
+
static int sun6i_csi_capture_querycap(struct file *file, void *private,
struct v4l2_capability *capability)
{
@@ -864,54 +907,8 @@ static int sun6i_csi_capture_g_fmt(struct file *file, void *private,
struct v4l2_format *format)
{
struct sun6i_csi_device *csi_dev = video_drvdata(file);
- struct sun6i_csi_capture *capture = &csi_dev->capture;
- *format = capture->format;
-
- return 0;
-}
-
-static int sun6i_csi_capture_format_try(struct sun6i_csi_capture *capture,
- struct v4l2_format *format)
-{
- struct v4l2_pix_format *pix_format = &format->fmt.pix;
- int bpp;
-
- if (!sun6i_csi_capture_format_check(pix_format->pixelformat))
- pix_format->pixelformat = sun6i_csi_capture_formats[0];
-
- v4l_bound_align_image(&pix_format->width, MIN_WIDTH, MAX_WIDTH, 1,
- &pix_format->height, MIN_HEIGHT, MAX_WIDTH, 1, 1);
-
- bpp = sun6i_csi_get_bpp(pix_format->pixelformat);
- pix_format->bytesperline = (pix_format->width * bpp) >> 3;
- pix_format->sizeimage = pix_format->bytesperline * pix_format->height;
-
- if (pix_format->field == V4L2_FIELD_ANY)
- pix_format->field = V4L2_FIELD_NONE;
-
- if (pix_format->pixelformat == V4L2_PIX_FMT_JPEG)
- pix_format->colorspace = V4L2_COLORSPACE_JPEG;
- else
- pix_format->colorspace = V4L2_COLORSPACE_SRGB;
-
- pix_format->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
- pix_format->quantization = V4L2_QUANTIZATION_DEFAULT;
- pix_format->xfer_func = V4L2_XFER_FUNC_DEFAULT;
-
- return 0;
-}
-
-static int sun6i_csi_capture_format_set(struct sun6i_csi_capture *capture,
- struct v4l2_format *format)
-{
- int ret;
-
- ret = sun6i_csi_capture_format_try(capture, format);
- if (ret)
- return ret;
-
- capture->format = *format;
+ *format = csi_dev->capture.format;
return 0;
}
@@ -925,16 +922,19 @@ static int sun6i_csi_capture_s_fmt(struct file *file, void *private,
if (vb2_is_busy(&capture->queue))
return -EBUSY;
- return sun6i_csi_capture_format_set(capture, format);
+ sun6i_csi_capture_format_prepare(format);
+
+ csi_dev->capture.format = *format;
+
+ return 0;
}
static int sun6i_csi_capture_try_fmt(struct file *file, void *private,
struct v4l2_format *format)
{
- struct sun6i_csi_device *csi_dev = video_drvdata(file);
- struct sun6i_csi_capture *capture = &csi_dev->capture;
+ sun6i_csi_capture_format_prepare(format);
- return sun6i_csi_capture_format_try(capture, format);
+ return 0;
}
static int sun6i_csi_capture_enum_input(struct file *file, void *private,
@@ -1125,8 +1125,8 @@ int sun6i_csi_capture_setup(struct sun6i_csi_device *csi_dev)
struct video_device *video_dev = &capture->video_dev;
struct vb2_queue *queue = &capture->queue;
struct media_pad *pad = &capture->pad;
- struct v4l2_format format = { 0 };
- struct v4l2_pix_format *pix_format = &format.fmt.pix;
+ struct v4l2_format *format = &csi_dev->capture.format;
+ struct v4l2_pix_format *pix_format = &format->fmt.pix;
int ret;
/* State */
@@ -1169,13 +1169,13 @@ int sun6i_csi_capture_setup(struct sun6i_csi_device *csi_dev)
/* V4L2 Format */
- format.type = queue->type;
+ format->type = queue->type;
pix_format->pixelformat = sun6i_csi_capture_formats[0];
pix_format->width = 1280;
pix_format->height = 720;
pix_format->field = V4L2_FIELD_NONE;
- sun6i_csi_capture_format_set(capture, &format);
+ sun6i_csi_capture_format_prepare(format);
/* Video Device */
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
index 935f35b7049a..02bdf45f7ca5 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
@@ -11,6 +11,11 @@
#include <media/v4l2-dev.h>
#include <media/videobuf2-core.h>
+#define SUN6I_CSI_CAPTURE_WIDTH_MIN 32
+#define SUN6I_CSI_CAPTURE_WIDTH_MAX 4800
+#define SUN6I_CSI_CAPTURE_HEIGHT_MIN 32
+#define SUN6I_CSI_CAPTURE_HEIGHT_MAX 4800
+
struct sun6i_csi_device;
#undef current
--
2.38.1
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