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media: aspeed: add debugfs

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To show video real-time information as below:

Capture:
  Signal              : Unlock
  Width               : 1920
  Height              : 1080
  FRC                 : 30

Performance:
  Frame#              : 0
  Frame Duration(ms)  :
    Now               : 0
    Min               : 0
    Max               : 0
  FPS                 : 0

[hverkuil: make aspeed_video_proc_open() static, fixes sparse warning]

Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Jammy Huang 2021-10-01 07:34:32 +01:00 committed by Mauro Carvalho Chehab
parent 67f85135c5
commit 52fed10ad7
1 changed files with 100 additions and 0 deletions
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100
drivers/media/platform/aspeed-video.c
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@ -23,6 +23,8 @@
#include <linux/videodev2.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#include <linux/debugfs.h>
#include <linux/ktime.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
@ -201,6 +203,14 @@ struct aspeed_video_buffer {
struct list_head link;
};
struct aspeed_video_perf {
ktime_t last_sample;
u32 totaltime;
u32 duration;
u32 duration_min;
u32 duration_max;
};
#define to_aspeed_video_buffer(x) \
container_of((x), struct aspeed_video_buffer, vb)
@ -242,6 +252,8 @@ struct aspeed_video {
unsigned int frame_left;
unsigned int frame_right;
unsigned int frame_top;
struct aspeed_video_perf perf;
};
#define to_aspeed_video(x) container_of((x), struct aspeed_video, v4l2_dev)
@ -465,6 +477,16 @@ static void aspeed_video_write(struct aspeed_video *video, u32 reg, u32 val)
readl(video->base + reg));
}
static void update_perf(struct aspeed_video_perf *p)
{
p->duration =
ktime_to_ms(ktime_sub(ktime_get(), p->last_sample));
p->totaltime += p->duration;
p->duration_max = max(p->duration, p->duration_max);
p->duration_min = min(p->duration, p->duration_min);
}
static int aspeed_video_start_frame(struct aspeed_video *video)
{
dma_addr_t addr;
@ -503,6 +525,8 @@ static int aspeed_video_start_frame(struct aspeed_video *video)
aspeed_video_update(video, VE_INTERRUPT_CTRL, 0,
VE_INTERRUPT_COMP_COMPLETE);
video->perf.last_sample = ktime_get();
aspeed_video_update(video, VE_SEQ_CTRL, 0,
VE_SEQ_CTRL_TRIG_CAPTURE | VE_SEQ_CTRL_TRIG_COMP);
@ -618,6 +642,8 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
u32 frame_size = aspeed_video_read(video,
video->comp_size_read);
update_perf(&video->perf);
spin_lock(&video->lock);
clear_bit(VIDEO_FRAME_INPRG, &video->flags);
buf = list_first_entry_or_null(&video->buffers,
@ -775,6 +801,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
det->width = MIN_WIDTH;
det->height = MIN_HEIGHT;
video->v4l2_input_status = V4L2_IN_ST_NO_SIGNAL;
memset(&video->perf, 0, sizeof(video->perf));
do {
if (tries) {
@ -1465,6 +1492,8 @@ static int aspeed_video_start_streaming(struct vb2_queue *q,
struct aspeed_video *video = vb2_get_drv_priv(q);
video->sequence = 0;
video->perf.duration_max = 0;
video->perf.duration_min = 0xffffffff;
rc = aspeed_video_start_frame(video);
if (rc) {
@ -1532,6 +1561,71 @@ static const struct vb2_ops aspeed_video_vb2_ops = {
.buf_queue = aspeed_video_buf_queue,
};
#ifdef CONFIG_DEBUG_FS
static int aspeed_video_debugfs_show(struct seq_file *s, void *data)
{
struct aspeed_video *v = s->private;
seq_puts(s, "\n");
seq_printf(s, " %-20s:\t%s\n", "Signal",
v->v4l2_input_status ? "Unlock" : "Lock");
seq_printf(s, " %-20s:\t%d\n", "Width", v->pix_fmt.width);
seq_printf(s, " %-20s:\t%d\n", "Height", v->pix_fmt.height);
seq_printf(s, " %-20s:\t%d\n", "FRC", v->frame_rate);
seq_puts(s, "\n");
seq_puts(s, "Performance:\n");
seq_printf(s, " %-20s:\t%d\n", "Frame#", v->sequence);
seq_printf(s, " %-20s:\n", "Frame Duration(ms)");
seq_printf(s, " %-18s:\t%d\n", "Now", v->perf.duration);
seq_printf(s, " %-18s:\t%d\n", "Min", v->perf.duration_min);
seq_printf(s, " %-18s:\t%d\n", "Max", v->perf.duration_max);
seq_printf(s, " %-20s:\t%d\n", "FPS", 1000 / (v->perf.totaltime / v->sequence));
return 0;
}
static int aspeed_video_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, aspeed_video_debugfs_show, inode->i_private);
}
static const struct file_operations aspeed_video_debugfs_ops = {
.owner = THIS_MODULE,
.open = aspeed_video_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static struct dentry *debugfs_entry;
static void aspeed_video_debugfs_remove(struct aspeed_video *video)
{
debugfs_remove_recursive(debugfs_entry);
debugfs_entry = NULL;
}
static int aspeed_video_debugfs_create(struct aspeed_video *video)
{
debugfs_entry = debugfs_create_file(DEVICE_NAME, 0444, NULL,
video,
&aspeed_video_debugfs_ops);
if (!debugfs_entry)
aspeed_video_debugfs_remove(video);
return !debugfs_entry ? -EIO : 0;
}
#else
static void aspeed_video_debugfs_remove(struct aspeed_video *video) { }
static int aspeed_video_debugfs_create(struct aspeed_video *video)
{
return 0;
}
#endif /* CONFIG_DEBUG_FS */
static int aspeed_video_setup_video(struct aspeed_video *video)
{
const u64 mask = ~(BIT(V4L2_JPEG_CHROMA_SUBSAMPLING_444) |
@ -1736,6 +1830,10 @@ static int aspeed_video_probe(struct platform_device *pdev)
return rc;
}
rc = aspeed_video_debugfs_create(video);
if (rc)
dev_err(video->dev, "debugfs create failed\n");
return 0;
}
@ -1747,6 +1845,8 @@ static int aspeed_video_remove(struct platform_device *pdev)
aspeed_video_off(video);
aspeed_video_debugfs_remove(video);
clk_unprepare(video->vclk);
clk_unprepare(video->eclk);