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freifunkist-firmware/target/linux/brcm2708/patches-4.14/950-0200-bcm2835-camera-Fix...

98 lines
3.4 KiB

brcm2708: add kernel 4.14 support Patch generation process: - rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable - git format-patch v4.14.89 Patches skipped during rebase: - lan78xx: Read MAC address from DT if present - lan78xx: Enable LEDs and auto-negotiation - Revert "softirq: Let ksoftirqd do its job" - sc16is7xx: Fix for multi-channel stall - lan78xx: Ignore DT MAC address if already valid - lan78xx: Simple patch to prevent some crashes - tcp_write_queue_purge clears all the SKBs in the write queue - Revert "lan78xx: Simple patch to prevent some crashes" - lan78xx: Connect phy early - Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro - Revert "Revert "softirq: Let ksoftirqd do its job"" - ASoC: cs4265: SOC_SINGLE register value error fix - Revert "ASoC: cs4265: SOC_SINGLE register value error fix" - Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends" - Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"" Patches dropped after rebase: - net: Add non-mainline source for rtl8192cu wlan - net: Fix rtl8192cu build errors on other platforms - brcm: adds support for BCM43341 wifi - brcmfmac: Mute expected startup 'errors' - ARM64: Fix build break for RTL8187/RTL8192CU wifi - ARM64: Enable RTL8187/RTL8192CU wifi in build config - This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator - brcmfmac: add CLM download support - brcmfmac: request_firmware_direct is quieter - Sets the BCDC priority to constant 0 - brcmfmac: Disable ARP offloading when promiscuous - brcmfmac: Avoid possible out-of-bounds read - brcmfmac: Delete redundant length check - net: rtl8192cu: Normalize indentation - net: rtl8192cu: Fix implicit fallthrough warnings - Revert "Sets the BCDC priority to constant 0" - media: cxd2880: Bump to match 4.18.y version - media: cxd2880-spi: Bump to match 4.18.y version - Revert "mm: alloc_contig: re-allow CMA to compact FS pages" - Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages"" - cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT - 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch - 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch Make I2C built-in instead of modular as in upstream defconfig; also the easiest way to get MFD_ARIZONA enabled, which is required by kmod-sound-soc-rpi-cirrus. Add missing compatible strings from 4.9/960-add-rasbperrypi-compatible.patch, using upstream names for compute modules. Add extra patch to enable the LEDs on lan78xx. Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y) Runtime-tested: bcm2708, bcm2710 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
6 years ago
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;