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From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: linux-media@vger.kernel.org,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Petr Mladek <pmladek@suse.com>,
	Dave Stevenson <dave.stevenson@raspberrypi.com>,
	dri-devel@lists.freedesktop.org, hverkuil@xs4all.nl,
	laurent.pinchart@ideasonboard.com, mchehab@kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Joe Perches <joe@perches.com>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>
Subject: [PATCH v7 2/3] v4l: ioctl: Use %p4cc printk modifier to print FourCC codes
Date: Mon, 15 Feb 2021 13:40:29 +0200	[thread overview]
Message-ID: <20210215114030.11862-3-sakari.ailus@linux.intel.com> (raw)
In-Reply-To: <20210215114030.11862-1-sakari.ailus@linux.intel.com>

Now that we can print FourCC codes directly using printk, make use of the
feature in V4L2 core.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-ioctl.c | 85 +++++++---------------------
 1 file changed, 21 insertions(+), 64 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 31d1342e61e8..31662c3a8c9e 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -265,13 +265,9 @@ static void v4l_print_fmtdesc(const void *arg, bool write_only)
 {
 	const struct v4l2_fmtdesc *p = arg;
 
-	pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, mbus_code=0x%04x, description='%.*s'\n",
+	pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%p4cc, mbus_code=0x%04x, description='%.*s'\n",
 		p->index, prt_names(p->type, v4l2_type_names),
-		p->flags, (p->pixelformat & 0xff),
-		(p->pixelformat >>  8) & 0xff,
-		(p->pixelformat >> 16) & 0xff,
-		(p->pixelformat >> 24) & 0xff,
-		p->mbus_code,
+		p->flags, &p->pixelformat, p->mbus_code,
 		(int)sizeof(p->description), p->description);
 }
 
@@ -293,12 +289,8 @@ static void v4l_print_format(const void *arg, bool write_only)
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 		pix = &p->fmt.pix;
-		pr_cont(", width=%u, height=%u, pixelformat=%c%c%c%c, field=%s, bytesperline=%u, sizeimage=%u, colorspace=%d, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
-			pix->width, pix->height,
-			(pix->pixelformat & 0xff),
-			(pix->pixelformat >>  8) & 0xff,
-			(pix->pixelformat >> 16) & 0xff,
-			(pix->pixelformat >> 24) & 0xff,
+		pr_cont(", width=%u, height=%u, pixelformat=%p4cc, field=%s, bytesperline=%u, sizeimage=%u, colorspace=%d, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
+			pix->width, pix->height, &pix->pixelformat,
 			prt_names(pix->field, v4l2_field_names),
 			pix->bytesperline, pix->sizeimage,
 			pix->colorspace, pix->flags, pix->ycbcr_enc,
@@ -307,12 +299,8 @@ static void v4l_print_format(const void *arg, bool write_only)
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
 		mp = &p->fmt.pix_mp;
-		pr_cont(", width=%u, height=%u, format=%c%c%c%c, field=%s, colorspace=%d, num_planes=%u, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
-			mp->width, mp->height,
-			(mp->pixelformat & 0xff),
-			(mp->pixelformat >>  8) & 0xff,
-			(mp->pixelformat >> 16) & 0xff,
-			(mp->pixelformat >> 24) & 0xff,
+		pr_cont(", width=%u, height=%u, format=%p4cc, field=%s, colorspace=%d, num_planes=%u, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
+			mp->width, mp->height, &mp->pixelformat,
 			prt_names(mp->field, v4l2_field_names),
 			mp->colorspace, mp->num_planes, mp->flags,
 			mp->ycbcr_enc, mp->quantization, mp->xfer_func);
@@ -337,13 +325,9 @@ static void v4l_print_format(const void *arg, bool write_only)
 	case V4L2_BUF_TYPE_VBI_CAPTURE:
 	case V4L2_BUF_TYPE_VBI_OUTPUT:
 		vbi = &p->fmt.vbi;
-		pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, sample_format=%c%c%c%c, start=%u,%u, count=%u,%u\n",
+		pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, sample_format=%p4cc, start=%u,%u, count=%u,%u\n",
 			vbi->sampling_rate, vbi->offset,
-			vbi->samples_per_line,
-			(vbi->sample_format & 0xff),
-			(vbi->sample_format >>  8) & 0xff,
-			(vbi->sample_format >> 16) & 0xff,
-			(vbi->sample_format >> 24) & 0xff,
+			vbi->samples_per_line, &vbi->sample_format,
 			vbi->start[0], vbi->start[1],
 			vbi->count[0], vbi->count[1]);
 		break;
@@ -360,21 +344,13 @@ static void v4l_print_format(const void *arg, bool write_only)
 	case V4L2_BUF_TYPE_SDR_CAPTURE:
 	case V4L2_BUF_TYPE_SDR_OUTPUT:
 		sdr = &p->fmt.sdr;
-		pr_cont(", pixelformat=%c%c%c%c\n",
-			(sdr->pixelformat >>  0) & 0xff,
-			(sdr->pixelformat >>  8) & 0xff,
-			(sdr->pixelformat >> 16) & 0xff,
-			(sdr->pixelformat >> 24) & 0xff);
+		pr_cont(", pixelformat=%p4cc\n", &sdr->pixelformat);
 		break;
 	case V4L2_BUF_TYPE_META_CAPTURE:
 	case V4L2_BUF_TYPE_META_OUTPUT:
 		meta = &p->fmt.meta;
-		pr_cont(", dataformat=%c%c%c%c, buffersize=%u\n",
-			(meta->dataformat >>  0) & 0xff,
-			(meta->dataformat >>  8) & 0xff,
-			(meta->dataformat >> 16) & 0xff,
-			(meta->dataformat >> 24) & 0xff,
-			meta->buffersize);
+		pr_cont(", dataformat=%p4cc, buffersize=%u\n",
+			&meta->dataformat, meta->buffersize);
 		break;
 	}
 }
@@ -383,15 +359,10 @@ static void v4l_print_framebuffer(const void *arg, bool write_only)
 {
 	const struct v4l2_framebuffer *p = arg;
 
-	pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, height=%u, pixelformat=%c%c%c%c, bytesperline=%u, sizeimage=%u, colorspace=%d\n",
-			p->capability, p->flags, p->base,
-			p->fmt.width, p->fmt.height,
-			(p->fmt.pixelformat & 0xff),
-			(p->fmt.pixelformat >>  8) & 0xff,
-			(p->fmt.pixelformat >> 16) & 0xff,
-			(p->fmt.pixelformat >> 24) & 0xff,
-			p->fmt.bytesperline, p->fmt.sizeimage,
-			p->fmt.colorspace);
+	pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, height=%u, pixelformat=%p4cc, bytesperline=%u, sizeimage=%u, colorspace=%d\n",
+		p->capability, p->flags, p->base, p->fmt.width, p->fmt.height,
+		&p->fmt.pixelformat, p->fmt.bytesperline, p->fmt.sizeimage,
+		p->fmt.colorspace);
 }
 
 static void v4l_print_buftype(const void *arg, bool write_only)
@@ -761,13 +732,8 @@ static void v4l_print_frmsizeenum(const void *arg, bool write_only)
 {
 	const struct v4l2_frmsizeenum *p = arg;
 
-	pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u",
-			p->index,
-			(p->pixel_format & 0xff),
-			(p->pixel_format >>  8) & 0xff,
-			(p->pixel_format >> 16) & 0xff,
-			(p->pixel_format >> 24) & 0xff,
-			p->type);
+	pr_cont("index=%u, pixelformat=%p4cc, type=%u",
+		p->index, &p->pixel_format, p->type);
 	switch (p->type) {
 	case V4L2_FRMSIZE_TYPE_DISCRETE:
 		pr_cont(", wxh=%ux%u\n",
@@ -793,13 +759,8 @@ static void v4l_print_frmivalenum(const void *arg, bool write_only)
 {
 	const struct v4l2_frmivalenum *p = arg;
 
-	pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u",
-			p->index,
-			(p->pixel_format & 0xff),
-			(p->pixel_format >>  8) & 0xff,
-			(p->pixel_format >> 16) & 0xff,
-			(p->pixel_format >> 24) & 0xff,
-			p->width, p->height, p->type);
+	pr_cont("index=%u, pixelformat=%p4cc, wxh=%ux%u, type=%u",
+		p->index, &p->pixel_format, p->width, p->height, p->type);
 	switch (p->type) {
 	case V4L2_FRMIVAL_TYPE_DISCRETE:
 		pr_cont(", fps=%d/%d\n",
@@ -1459,12 +1420,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
 				return;
 			WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
 			flags = 0;
-			snprintf(fmt->description, sz, "%c%c%c%c%s",
-					(char)(fmt->pixelformat & 0x7f),
-					(char)((fmt->pixelformat >> 8) & 0x7f),
-					(char)((fmt->pixelformat >> 16) & 0x7f),
-					(char)((fmt->pixelformat >> 24) & 0x7f),
-					(fmt->pixelformat & (1UL << 31)) ? "-BE" : "");
+			snprintf(fmt->description, sz, "%p4cc",
+				 &fmt->pixelformat);
 			break;
 		}
 	}
-- 
2.29.2


  parent reply	other threads:[~2021-02-15 11:43 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-15 11:40 [PATCH v7 0/3] Add %p4cc printk modifier for V4L2 and DRM fourcc codes Sakari Ailus
2021-02-15 11:40 ` [PATCH v7 1/3] lib/vsprintf: Add support for printing V4L2 and DRM fourccs Sakari Ailus
2021-02-15 13:31   ` Andy Shevchenko
2021-02-15 13:56     ` Sakari Ailus
2021-02-15 15:54       ` Andy Shevchenko
2021-02-15 16:51         ` Petr Mladek
2021-02-15 17:21           ` Sakari Ailus
2021-02-15 11:40 ` Sakari Ailus [this message]
2021-02-15 13:34   ` [PATCH v7 2/3] v4l: ioctl: Use %p4cc printk modifier to print FourCC codes Andy Shevchenko
2021-02-15 13:50     ` Sakari Ailus
2021-02-15 16:56   ` Petr Mladek
2021-02-15 17:05     ` Mauro Carvalho Chehab
2021-02-15 17:22       ` Sakari Ailus
2021-02-15 11:40 ` [PATCH v7 3/3] drm: Switch to %p4cc format modifier Sakari Ailus
2021-02-15 13:41   ` Andy Shevchenko
2021-02-15 13:48     ` Sakari Ailus
2021-02-15 17:26     ` Sakari Ailus
2021-02-15 17:36       ` Andy Shevchenko
2021-02-15 16:58   ` Petr Mladek
2021-02-16  8:37   ` Thomas Zimmermann
2021-02-16  9:01     ` Sakari Ailus
2021-02-16  9:08     ` Petr Mladek

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