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| author | Arnd Bergmann <arnd@arndb.de> | 2017-11-27 16:19:53 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-01-04 14:36:27 +0300 |
| commit | a70b8b24e79dc8b4811c3179f8431346e98d1f8c (patch) | |
| tree | a01a5c887511814686000192cb38b05309885c76 | |
| parent | 6f0e5fd39143a59c22d60e7befc4f33f22aeed2f (diff) | |
| download | linux-a70b8b24e79dc8b4811c3179f8431346e98d1f8c.tar.xz | |
media: uvcvideo: Use ktime_t for stats
'struct timespec' works fine here, but we try to migrate
away from it in favor of ktime_t or timespec64. In this
case, using ktime_t produces the simplest code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| -rw-r--r-- | drivers/media/usb/uvc/uvc_video.c | 11 | ||||
| -rw-r--r-- | drivers/media/usb/uvc/uvcvideo.h | 4 |
2 files changed, 6 insertions, 9 deletions
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index 73cd44e8bd81..d468332abe0d 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -725,7 +725,7 @@ static void uvc_video_stats_decode(struct uvc_streaming *stream, if (stream->stats.stream.nb_frames == 0 && stream->stats.frame.nb_packets == 0) - ktime_get_ts(&stream->stats.stream.start_ts); + stream->stats.stream.start_ts = ktime_get(); switch (data[1] & (UVC_STREAM_PTS | UVC_STREAM_SCR)) { case UVC_STREAM_PTS | UVC_STREAM_SCR: @@ -865,16 +865,13 @@ size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf, { unsigned int scr_sof_freq; unsigned int duration; - struct timespec ts; size_t count = 0; - ts = timespec_sub(stream->stats.stream.stop_ts, - stream->stats.stream.start_ts); - /* Compute the SCR.SOF frequency estimate. At the nominal 1kHz SOF * frequency this will not overflow before more than 1h. */ - duration = ts.tv_sec * 1000 + ts.tv_nsec / 1000000; + duration = ktime_ms_delta(stream->stats.stream.stop_ts, + stream->stats.stream.start_ts); if (duration != 0) scr_sof_freq = stream->stats.stream.scr_sof_count * 1000 / duration; @@ -915,7 +912,7 @@ static void uvc_video_stats_start(struct uvc_streaming *stream) static void uvc_video_stats_stop(struct uvc_streaming *stream) { - ktime_get_ts(&stream->stats.stream.stop_ts); + stream->stats.stream.stop_ts = ktime_get(); } /* ------------------------------------------------------------------------ diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 19e725e2bda5..94392a3256e8 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -457,8 +457,8 @@ struct uvc_stats_frame { }; struct uvc_stats_stream { - struct timespec start_ts; /* Stream start timestamp */ - struct timespec stop_ts; /* Stream stop timestamp */ + ktime_t start_ts; /* Stream start timestamp */ + ktime_t stop_ts; /* Stream stop timestamp */ unsigned int nb_frames; /* Number of frames */ |