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Subject[PATCH 105/141] V4L/DVB (3373): Debug messages for ioctl improved
Date
From: Mauro Carvalho Chehab <mchehab@infradead.org>
Date: 1141009735 -0300

Adds field and type name to debug message.
Also prints now format for type=capture.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---

diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 4908dab..9e41ab7 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -323,6 +323,16 @@ static const char *v4l2_int_ioctls[] = {
};
#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)

+static void v4l_print_pix_fmt (char *s, struct v4l2_pix_format *fmt)
+{
+ printk ("%s: width=%d, height=%d, format=%d, field=%s, "
+ "bytesperline=%d sizeimage=%d, colorspace=%d\n", s,
+ fmt->width,fmt->height,fmt->pixelformat,
+ ((fmt->field>=0)&&(fmt->field<ARRAY_SIZE(v4l2_field_names)))?
+ v4l2_field_names[fmt->field]:"unknown",
+ fmt->bytesperline,fmt->sizeimage,fmt->colorspace);
+};
+
/* Common ioctl debug function. This function can be used by
external ioctl messages as well as internal V4L ioctl */
void v4l_printk_ioctl(unsigned int cmd)
@@ -449,15 +459,18 @@ void v4l_printk_ioctl_arg(char *s,unsign
{
struct v4l2_buffer *p=arg;
struct v4l2_timecode *tc=&p->timecode;
- printk ("%s: %02ld:%02d:%02d.%08ld index=%d, type=%d, "
+ printk ("%s: %02ld:%02d:%02d.%08ld index=%d, type=%s, "
"bytesused=%d, flags=0x%08d, "
- "field=%0d, sequence=%d, memory=%d, offset/userptr=0x%08lx,",
+ "field=%0d, sequence=%d, memory=%d, offset/userptr=0x%08lx\n",
s,
(p->timestamp.tv_sec/3600),
(int)(p->timestamp.tv_sec/60)%60,
(int)(p->timestamp.tv_sec%60),
p->timestamp.tv_usec,
- p->index,p->type,p->bytesused,p->flags,
+ p->index,
+ ((p->type>=0)&&(p->type<ARRAY_SIZE(v4l2_type_names)))?
+ v4l2_type_names[p->type]:"unknown",
+ p->bytesused,p->flags,
p->field,p->sequence,p->memory,p->m.userptr);
printk ("%s: timecode= %02d:%02d:%02d type=%d, "
"flags=0x%08d, frames=%d, userbits=0x%08x",
@@ -522,17 +535,24 @@ void v4l_printk_ioctl_arg(char *s,unsign
case VIDIOC_TRY_FMT:
{
struct v4l2_format *p=arg;
- /* FIXME: Should be one dump per type*/
- printk ("%s: type=%d\n", s,p->type);
- break;
+ printk ("%s: type=%s\n", s,
+ ((p->type>=0)&&(p->type<ARRAY_SIZE(v4l2_type_names)))?
+ v4l2_type_names[p->type]:"unknown");
+ switch (p->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ v4l_print_pix_fmt (s, &p->fmt.pix);
+ break;
+ default:
+ break;
+ }
}
case VIDIOC_G_FBUF:
case VIDIOC_S_FBUF:
{
struct v4l2_framebuffer *p=arg;
- /*FIXME: should show also struct v4l2_pix_format p->fmt field */
printk ("%s: capability=%d, flags=%d, base=0x%08lx\n", s,
p->capability,p->flags, (unsigned long)p->base);
+ v4l_print_pix_fmt (s, &p->fmt);
break;
}
case VIDIOC_G_FREQUENCY:
-
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