[libcamera-devel] [PATCH 1/3] pipeline: ipa: raspberrypi: Various fixups after IPAInterface changes

Naushir Patuck naush at raspberrypi.com
Thu Feb 18 12:35:00 CET 2021


Hi Kieran,

On Thu, 18 Feb 2021 at 11:25, Kieran Bingham <
kieran.bingham at ideasonboard.com> wrote:

> Hi Naush,
>
> On 17/02/2021 10:08, Naushir Patuck wrote:
> > This commit addresses a few fixes and tidy-ups after the IPAInterface
> > rework:
> > - Rename ConfigStaggeredWrite -> ConfigSensorParams
> > - Rename setIsp -> setIspControls
> > - Switch to camel case for ISPConfig::embeddedbufferId and
> > ISPConfig::bayerbufferId.
> > - Signal handlers statsMetadataComplete(), runISP(), embeddedComplete()
> > should only run when state != Stopped. This matches the behavior of
> > the original code. Without this, start/stop cycles may cause errors.
> > - In setIspControls(), only update the LS config (with the fd) when a LS
> > control is present.
>
>
> That's quite a lot of change for a single patch, but I don't think
> there's a point for splitting this out now, especially as it's required
> to fix a crash.
>

I do agree.  If you prefer, I could split this into code changes (for
fixing the crash) and the other cosmetic changes.



>
>
> > Signed-off-by: Naushir Patuck <naush at raspberrypi.com>
> > Fixes: e201cb4f5450 ("libcamera: IPAInterface: Replace C API with the
> new C++-only API")
> > ---
> >  include/libcamera/ipa/raspberrypi.mojom       |  8 ++---
> >  src/ipa/raspberrypi/raspberrypi.cpp           |  8 ++---
> >  .../pipeline/raspberrypi/raspberrypi.cpp      | 36 ++++++++++---------
> >  3 files changed, 27 insertions(+), 25 deletions(-)
> >
> > diff --git a/include/libcamera/ipa/raspberrypi.mojom
> b/include/libcamera/ipa/raspberrypi.mojom
> > index bab19a946e18..9c05cc68cceb 100644
> > --- a/include/libcamera/ipa/raspberrypi.mojom
> > +++ b/include/libcamera/ipa/raspberrypi.mojom
> > @@ -16,7 +16,7 @@ enum BufferMask {
> >  const uint32 MaxLsGridSize = 0x8000;
> >
> >  enum ConfigOutputParameters {
> > -     ConfigStaggeredWrite = 0x01,
> > +     ConfigSensorParams = 0x01,
> >  };
> >
> >  struct SensorConfig {
> > @@ -27,8 +27,8 @@ struct SensorConfig {
> >  };
> >
> >  struct ISPConfig {
> > -     uint32 embeddedbufferId;
> > -     uint32 bayerbufferId;
> > +     uint32 embeddedBufferId;
> > +     uint32 bayerBufferId;
> >  };
> >
> >  struct ConfigInput {
> > @@ -126,6 +126,6 @@ interface IPARPiEventInterface {
> >       statsMetadataComplete(uint32 bufferId, ControlList controls);
> >       runIsp(uint32 bufferId);
> >       embeddedComplete(uint32 bufferId);
> > -     setIsp(ControlList controls);
> > +     setIspControls(ControlList controls);
> >       setDelayedControls(ControlList controls);
> >  };
> > diff --git a/src/ipa/raspberrypi/raspberrypi.cpp
> b/src/ipa/raspberrypi/raspberrypi.cpp
> > index 81a3195c82e9..974f4ec63058 100644
> > --- a/src/ipa/raspberrypi/raspberrypi.cpp
> > +++ b/src/ipa/raspberrypi/raspberrypi.cpp
> > @@ -344,7 +344,7 @@ void IPARPi::configure(const CameraSensorInfo
> &sensorInfo,
> >               helper_->GetDelays(exposureDelay, gainDelay);
> >               sensorMetadata = helper_->SensorEmbeddedDataPresent();
> >
> > -             result->params |= ipa::rpi::ConfigStaggeredWrite;
> > +             result->params |= ipa::rpi::ConfigSensorParams;
> >               result->sensorConfig.gainDelay = gainDelay;
> >               result->sensorConfig.exposureDelay = exposureDelay;
> >               result->sensorConfig.vblank = exposureDelay;
> > @@ -447,11 +447,11 @@ void IPARPi::signalIspPrepare(const
> ipa::rpi::ISPConfig &data)
> >        * avoid running the control algos for a few frames in case
> >        * they are "unreliable".
> >        */
> > -     prepareISP(data.embeddedbufferId);
> > +     prepareISP(data.embeddedBufferId);
> >       frameCount_++;
> >
> >       /* Ready to push the input buffer into the ISP. */
> > -     runIsp.emit(data.bayerbufferId & ipa::rpi::MaskID);
> > +     runIsp.emit(data.bayerBufferId & ipa::rpi::MaskID);
> >  }
> >
> >  void IPARPi::reportMetadata()
> > @@ -968,7 +968,7 @@ void IPARPi::prepareISP(unsigned int bufferId)
> >                       applyDPC(dpcStatus, ctrls);
> >
> >               if (!ctrls.empty())
> > -                     setIsp.emit(ctrls);
> > +                     setIspControls.emit(ctrls);
> >       }
> >  }
> >
> > diff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
> b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
> > index 15aa600ed581..8770ae66a21a 100644
> > --- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
> > +++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp
> > @@ -152,7 +152,7 @@ public:
> >       void statsMetadataComplete(uint32_t bufferId, const ControlList
> &controls);
> >       void runIsp(uint32_t bufferId);
> >       void embeddedComplete(uint32_t bufferId);
> > -     void setIsp(const ControlList &controls);
> > +     void setIspControls(const ControlList &controls);
> >       void setDelayedControls(const ControlList &controls);
> >
> >       /* bufferComplete signal handlers. */
> > @@ -1172,7 +1172,7 @@ int RPiCameraData::loadIPA()
> >       ipa_->statsMetadataComplete.connect(this,
> &RPiCameraData::statsMetadataComplete);
> >       ipa_->runIsp.connect(this, &RPiCameraData::runIsp);
> >       ipa_->embeddedComplete.connect(this,
> &RPiCameraData::embeddedComplete);
> > -     ipa_->setIsp.connect(this, &RPiCameraData::setIsp);
> > +     ipa_->setIspControls.connect(this, &RPiCameraData::setIspControls);
> >       ipa_->setDelayedControls.connect(this,
> &RPiCameraData::setDelayedControls);
> >
> >       IPASettings settings(ipa_->configurationFile(sensor_->model() +
> ".json"));
> > @@ -1241,7 +1241,7 @@ int RPiCameraData::configureIPA(const
> CameraConfiguration *config)
> >               return -EPIPE;
> >       }
> >
> > -     if (result.params & ipa::rpi::ConfigStaggeredWrite) {
> > +     if (result.params & ipa::rpi::ConfigSensorParams) {
> >               /*
> >                * Setup our delayed control writer with the sensor default
> >                * gain and exposure delays.
> > @@ -1281,7 +1281,7 @@ int RPiCameraData::configureIPA(const
> CameraConfiguration *config)
> >  void RPiCameraData::statsMetadataComplete(uint32_t bufferId, const
> ControlList &controls)
> >  {
> >       if (state_ == State::Stopped)
> > -             handleState();
> > +             return;
> >
> >       FrameBuffer *buffer = isp_[Isp::Stats].getBuffers().at(bufferId);
> >
> > @@ -1314,7 +1314,7 @@ void RPiCameraData::statsMetadataComplete(uint32_t
> bufferId, const ControlList &
> >  void RPiCameraData::runIsp(uint32_t bufferId)
> >  {
> >       if (state_ == State::Stopped)
> > -             handleState();
> > +             return;
> >
> >       FrameBuffer *buffer =
> unicam_[Unicam::Image].getBuffers().at(bufferId);
> >
> > @@ -1329,26 +1329,28 @@ void RPiCameraData::runIsp(uint32_t bufferId)
> >  void RPiCameraData::embeddedComplete(uint32_t bufferId)
> >  {
> >       if (state_ == State::Stopped)
> > -             handleState();
> > +             return;
> >
> >       FrameBuffer *buffer =
> unicam_[Unicam::Embedded].getBuffers().at(bufferId);
> >       handleStreamBuffer(buffer, &unicam_[Unicam::Embedded]);
> >       handleState();
> >  }
> >
> > -void RPiCameraData::setIsp(const ControlList &controls)
> > +void RPiCameraData::setIspControls(const ControlList &controls)
> >  {
> >       ControlList ctrls = controls;
> >
> > -     Span<const uint8_t> s =
> > -             ctrls.get(V4L2_CID_USER_BCM2835_ISP_LENS_SHADING).data();
> > -     bcm2835_isp_lens_shading ls =
> > -             *reinterpret_cast<const bcm2835_isp_lens_shading
> *>(s.data());
> > -     ls.dmabuf = lsTable_.fd();
> > +     if (ctrls.contains(V4L2_CID_USER_BCM2835_ISP_LENS_SHADING)) {
> > +             Span<const uint8_t> s =
> > +
>  ctrls.get(V4L2_CID_USER_BCM2835_ISP_LENS_SHADING).data();
> > +             bcm2835_isp_lens_shading ls =
> > +                     *reinterpret_cast<const bcm2835_isp_lens_shading
> *>(s.data());
> > +             ls.dmabuf = lsTable_.fd();
> >
> > -     ControlValue c(Span<const uint8_t>{ reinterpret_cast<uint8_t
> *>(&ls),
> > -                                         sizeof(ls) });
> > -     ctrls.set(V4L2_CID_USER_BCM2835_ISP_LENS_SHADING, c);
> > +             ControlValue c(Span<const uint8_t>{
> reinterpret_cast<uint8_t *>(&ls),
> > +                                                 sizeof(ls) });
> > +             ctrls.set(V4L2_CID_USER_BCM2835_ISP_LENS_SHADING, c);
> > +     }
>
> I assume it's this hunk which fixes the bug?
> Everything else seems to be a rename or the handleState changes perhaps
> are a no-effect change?
>

Actually not this one, but the hunks just above that fix the bug.  Let me
split this change up and I will resubmit a v3.  If it's ok, I will add your
R-b tags to them.

Regards,
Naush



>
> As this is a bug fix, it would have been nice to see that split so the
> reader can understand what code change actually causes the fix.
>
> The renames are trivial, so they're fine, and this seesm to make sense
> as it protects against accessing a control which isn't set.
>
> Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
>
>
>
> >
> >       isp_[Isp::Input].dev()->setControls(&ctrls);
> >       handleState();
> > @@ -1692,8 +1694,8 @@ void RPiCameraData::tryRunPipeline()
> >                       << " Embedded buffer id: " << embeddedId;
> >
> >       ipa::rpi::ISPConfig ispPrepare;
> > -     ispPrepare.embeddedbufferId = ipa::rpi::MaskEmbeddedData |
> embeddedId;
> > -     ispPrepare.bayerbufferId = ipa::rpi::MaskBayerData | bayerId;
> > +     ispPrepare.embeddedBufferId = ipa::rpi::MaskEmbeddedData |
> embeddedId;
> > +     ispPrepare.bayerBufferId = ipa::rpi::MaskBayerData | bayerId;
> >       ipa_->signalIspPrepare(ispPrepare);
> >  }
> >
> >
>
> --
> Regards
> --
> Kieran
>
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