diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0200-bcm2835-camera-Fix-timestamp-calculation-problem-221.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0200-bcm2835-camera-Fix-timestamp-calculation-problem-221.patch | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0200-bcm2835-camera-Fix-timestamp-calculation-problem-221.patch b/target/linux/brcm2708/patches-4.14/950-0200-bcm2835-camera-Fix-timestamp-calculation-problem-221.patch deleted file mode 100644 index 9da6ac4642..0000000000 --- a/target/linux/brcm2708/patches-4.14/950-0200-bcm2835-camera-Fix-timestamp-calculation-problem-221.patch +++ /dev/null @@ -1,97 +0,0 @@ -From aa6e148bb75f76291e9625316f1f7c73458daf47 Mon Sep 17 00:00:00 2001 -From: David H <davidjhu@gmail.com> -Date: Wed, 4 Oct 2017 04:43:07 -0700 -Subject: [PATCH 200/454] bcm2835-camera: Fix timestamp calculation problem - (#2214) - -* bcm2835-camera: Fix timestamp calculation problem - -Use div_s64_rem() to convert usec timestamp to timeval -to avoid integer signedness bug. - -* bcm2835-camera: Store kernel start time in NSEC instead of USEC - -* bcm2835-camera: Reword debug message for clarity ---- - .../bcm2835-camera/bcm2835-camera.c | 41 +++++-------------- - .../bcm2835-camera/bcm2835-camera.h | 2 +- - 2 files changed, 11 insertions(+), 32 deletions(-) - ---- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c -+++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c -@@ -348,37 +348,17 @@ static void buffer_cb(struct vchiq_mmal_ - buf->vb.vb2_buf.timestamp); - - } else if(pts != 0) { -- struct timeval timestamp; - s64 runtime_us = pts - - dev->capture.vc_start_timestamp; -- u32 div = 0; -- u32 rem = 0; -- -- div = -- div_u64_rem(runtime_us, USEC_PER_SEC, &rem); -- timestamp.tv_sec = -- dev->capture.kernel_start_ts.tv_sec + div; -- timestamp.tv_usec = -- dev->capture.kernel_start_ts.tv_usec + rem; -- -- if (timestamp.tv_usec >= -- USEC_PER_SEC) { -- timestamp.tv_sec++; -- timestamp.tv_usec -= -- USEC_PER_SEC; -- } -+ buf->vb.vb2_buf.timestamp = (runtime_us * NSEC_PER_USEC) + -+ dev->capture.kernel_start_timestamp; - v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, -- "Convert start time %d.%06d and %llu " -- "with offset %llu to %d.%06d\n", -- (int)dev->capture.kernel_start_ts. -- tv_sec, -- (int)dev->capture.kernel_start_ts. -- tv_usec, -- dev->capture.vc_start_timestamp, pts, -- (int)timestamp.tv_sec, -- (int)timestamp.tv_usec); -- buf->vb.vb2_buf.timestamp = timestamp.tv_sec * 1000000000ULL + -- timestamp.tv_usec * 1000ULL; -+ "Buffer time set as converted timestamp - %llu " -+ "= (pts [%lld usec] - vc start time [%llu usec]) " -+ "+ kernel start time [%llu nsec]\n", -+ buf->vb.vb2_buf.timestamp, -+ pts, dev->capture.vc_start_timestamp, -+ dev->capture.kernel_start_timestamp); - } else { - if (dev->capture.last_timestamp) { - buf->vb.vb2_buf.timestamp = dev->capture.last_timestamp; -@@ -388,8 +368,7 @@ static void buffer_cb(struct vchiq_mmal_ - } - else { - buf->vb.vb2_buf.timestamp = -- dev->capture.kernel_start_ts.tv_sec * 1000000000ULL + -- dev->capture.kernel_start_ts.tv_usec * 1000ULL; -+ dev->capture.kernel_start_timestamp; - v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, - "Buffer time set as start timestamp - %lld", - buf->vb.vb2_buf.timestamp); -@@ -574,7 +553,7 @@ static int start_streaming(struct vb2_qu - - dev->capture.last_timestamp = 0; - -- v4l2_get_timestamp(&dev->capture.kernel_start_ts); -+ dev->capture.kernel_start_timestamp = ktime_get_ns(); - - /* enable the camera port */ - dev->capture.port->cb_ctx = dev; ---- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h -+++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h -@@ -92,7 +92,7 @@ struct bm2835_mmal_dev { - /* VC start timestamp for streaming */ - s64 vc_start_timestamp; - /* Kernel start timestamp for streaming */ -- struct timeval kernel_start_ts; -+ u64 kernel_start_timestamp; - /* Timestamp of last frame */ - u64 last_timestamp; - |