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video: add sysfs video_inuse for vfm map share[1/9]

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PD#165474: add sysfs video_inuse for vfm map share

Change-Id: Ic226eaf89cbd55dae14532b3c291485a8585b933
Signed-off-by: kieth liu <kieth.liu@amlogic.com>
This commit is contained in:
kieth liu
2018-06-08 15:51:56 +08:00
committed by Yixun Lan
parent 778e267f00
commit ea5ec8a557
1 changed files with 44 additions and 0 deletions
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44
drivers/amlogic/media/video_sink/video.c
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@@ -540,6 +540,7 @@ static int pts_trace_his_rd;
#endif
static DEFINE_MUTEX(video_module_mutex);
static DEFINE_MUTEX(video_inuse_mutex);
static DEFINE_SPINLOCK(lock);
static u32 frame_par_ready_to_set, frame_par_force_to_set;
static u32 vpts_remainder;
@@ -844,6 +845,9 @@ static u32 dmc_config_state;
static u32 last_toggle_count;
static u32 toggle_same_count;
/* video_inuse */
static u32 video_inuse;
void set_freerun_mode(int mode)
{
freerun_mode = mode;
@@ -8755,6 +8759,42 @@ static ssize_t pic_mode_info_show(struct class *cla,
return sprintf(buf, "NA\n");
}
static ssize_t video_inuse_show(struct class *class,
struct class_attribute *attr, char *buf)
{
size_t r;
mutex_lock(&video_inuse_mutex);
if (video_inuse == 0) {
r = sprintf(buf, "%d\n", video_inuse);
video_inuse = 1;
pr_info("video_inuse return 0,set 1\n");
} else {
r = sprintf(buf, "%d\n", video_inuse);
pr_info("video_inuse = %d\n", video_inuse);
}
mutex_unlock(&video_inuse_mutex);
return r;
}
static ssize_t video_inuse_store(struct class *class,
struct class_attribute *attr,
const char *buf, size_t count)
{
size_t r;
int val;
mutex_lock(&video_inuse_mutex);
r = kstrtoint(buf, 0, &val);
pr_info("set video_inuse val:%d\n", val);
video_inuse = val;
mutex_unlock(&video_inuse_mutex);
if (r != 1)
return -EINVAL;
return count;
}
static struct class_attribute amvideo_class_attrs[] = {
__ATTR(axis,
0664,
@@ -8894,6 +8934,10 @@ static struct class_attribute amvideo_class_attrs[] = {
#ifdef PTS_TRACE_DEBUG
__ATTR_RO(pts_trace),
#endif
__ATTR(video_inuse,
0664,
video_inuse_show,
video_inuse_store),
__ATTR_RO(frame_addr),
__ATTR_RO(frame_canvas_width),
__ATTR_RO(frame_canvas_height),