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media: staging: media: zoran: add debugfs 

Add debugfs for displaying zoran debug and stats information.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Corentin Labbe 2021-12-14 17:16:22 +01:00 committed by Mauro Carvalho Chehab
parent b82cdccafd
commit 2776d278df
3 changed files with 39 additions and 0 deletions
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1
drivers/staging/media/zoran/Kconfig
View File

@ -2,6 +2,7 @@ config VIDEO_ZORAN
tristate "Zoran ZR36057/36067 Video For Linux (Deprecated)"
depends on PCI && I2C_ALGOBIT && VIDEO_V4L2
depends on !ALPHA
depends on DEBUG_FS
select VIDEOBUF2_DMA_CONTIG
help
Say Y for support for MJPEG capture cards based on the Zoran

2
drivers/staging/media/zoran/zoran.h
View File

@ -18,6 +18,7 @@
#ifndef _BUZ_H_
#define _BUZ_H_
#include <linux/debugfs.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/videobuf2-core.h>
@ -295,6 +296,7 @@ struct zoran {
struct list_head queued_bufs;
spinlock_t queued_bufs_lock; /* Protects queued_bufs */
struct zr_buffer *inuse[BUZ_NUM_STAT_COM * 2];
struct dentry *dbgfs_dir;
};
static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)

36
drivers/staging/media/zoran/zoran_card.c
View File

@ -945,6 +945,8 @@ static void zoran_remove(struct pci_dev *pdev)
if (!zr->initialized)
goto exit_free;
debugfs_remove_recursive(zr->dbgfs_dir);
zoran_queue_exit(zr);
/* unregister videocodec bus */
@ -1051,6 +1053,37 @@ static const struct v4l2_ctrl_ops zoran_video_ctrl_ops = {
.s_ctrl = zoran_video_set_ctrl,
};
static int zoran_debugfs_show(struct seq_file *seq, void *v)
{
struct zoran *zr = seq->private;
seq_printf(seq, "Running mode %x\n", zr->running);
seq_printf(seq, "Codec mode %x\n", zr->codec_mode);
seq_printf(seq, "Norm %llx\n", zr->norm);
seq_printf(seq, "Input %d\n", zr->input);
seq_printf(seq, "Buffersize %d\n", zr->buffer_size);
seq_printf(seq, "V4L width %dx%d\n", zr->v4l_settings.width, zr->v4l_settings.height);
seq_printf(seq, "V4L bytesperline %d\n", zr->v4l_settings.bytesperline);
seq_printf(seq, "JPG decimation %u\n", zr->jpg_settings.decimation);
seq_printf(seq, "JPG hor_dcm %u\n", zr->jpg_settings.hor_dcm);
seq_printf(seq, "JPG ver_dcm %u\n", zr->jpg_settings.ver_dcm);
seq_printf(seq, "JPG tmp_dcm %u\n", zr->jpg_settings.tmp_dcm);
seq_printf(seq, "JPG odd_even %u\n", zr->jpg_settings.odd_even);
seq_printf(seq, "JPG crop %dx%d %d %d\n",
zr->jpg_settings.img_x,
zr->jpg_settings.img_y,
zr->jpg_settings.img_width,
zr->jpg_settings.img_height);
seq_printf(seq, "Prepared %u\n", zr->prepared);
seq_printf(seq, "Queued %u\n", zr->queued);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(zoran_debugfs);
/*
* Scan for a Buz card (actually for the PCI controller ZR36057),
* request the irq and map the io memory
@ -1286,6 +1319,9 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
zr->map_mode = ZORAN_MAP_MODE_RAW;
zr->dbgfs_dir = debugfs_create_dir(ZR_DEVNAME(zr), NULL);
debugfs_create_file("debug", 0444, zr->dbgfs_dir, zr,
&zoran_debugfs_fops);
return 0;
zr_detach_vfe: