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[media] vivid-tpg: add tpg_log_status() 

Add a log_status function to the test pattern generator and use that
in vivid. This simplifies debugging complex colorspace problems.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-04-24 11:16:22 -03:00 committed by Mauro Carvalho Chehab
parent 1381fb3e01
commit 84b76d749b
3 changed files with 29 additions and 1 deletions
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13
drivers/media/platform/vivid/vivid-core.c
View File

@ -392,6 +392,17 @@ static int vidioc_s_parm(struct file *file, void *fh,
return vivid_vid_out_g_parm(file, fh, parm);
}
static int vidioc_log_status(struct file *file, void *fh)
{
struct vivid_dev *dev = video_drvdata(file);
struct video_device *vdev = video_devdata(file);
v4l2_ctrl_log_status(file, fh);
if (vdev->vfl_dir == VFL_DIR_RX && vdev->vfl_type == VFL_TYPE_GRABBER)
tpg_log_status(&dev->tpg);
return 0;
}
static ssize_t vivid_radio_read(struct file *file, char __user *buf,
size_t size, loff_t *offset)
{
@ -610,7 +621,7 @@ static const struct v4l2_ioctl_ops vivid_ioctl_ops = {
.vidioc_g_edid = vidioc_g_edid,
.vidioc_s_edid = vidioc_s_edid,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_log_status = vidioc_log_status,
.vidioc_subscribe_event = vidioc_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};

16
drivers/media/platform/vivid/vivid-tpg.c
View File

@ -1670,6 +1670,22 @@ static int tpg_pattern_avg(const struct tpg_data *tpg,
return -1;
}
void tpg_log_status(struct tpg_data *tpg)
{
pr_info("tpg source WxH: %ux%u (%s)\n",
tpg->src_width, tpg->src_height,
tpg->is_yuv ? "YCbCr" : "RGB");
pr_info("tpg field: %u\n", tpg->field);
pr_info("tpg crop: %ux%u@%dx%d\n", tpg->crop.width, tpg->crop.height,
tpg->crop.left, tpg->crop.top);
pr_info("tpg compose: %ux%u@%dx%d\n", tpg->compose.width, tpg->compose.height,
tpg->compose.left, tpg->compose.top);
pr_info("tpg colorspace: %d\n", tpg->colorspace);
pr_info("tpg Y'CbCr encoding: %d/%d\n", tpg->ycbcr_enc, tpg->real_ycbcr_enc);
pr_info("tpg quantization: %d/%d\n", tpg->quantization, tpg->real_quantization);
pr_info("tpg RGB range: %d/%d\n", tpg->rgb_range, tpg->real_rgb_range);
}
/*
* This struct contains common parameters used by both the drawing of the
* test pattern and the drawing of the extras (borders, square, etc.)

1
drivers/media/platform/vivid/vivid-tpg.h
View File

@ -192,6 +192,7 @@ int tpg_alloc(struct tpg_data *tpg, unsigned max_w);
void tpg_free(struct tpg_data *tpg);
void tpg_reset_source(struct tpg_data *tpg, unsigned width, unsigned height,
u32 field);
void tpg_log_status(struct tpg_data *tpg);
void tpg_set_font(const u8 *f);
void tpg_gen_text(const struct tpg_data *tpg,