From 007517618c8440d09cfd39db5dbf451e87ef703a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= Date: Mon, 25 Nov 2019 22:14:40 +0100 Subject: ipa: Switch to FrameBuffer interface MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Switch the IPA interfaces and implementations to use the Framebuffer interface. - The IPA interface is switched to use the simpler FrameBuffer::Plane container when carrying dmabuf descriptions (fd and length) over the pipeline/IPA boundary. - The RkISP1 IPA implementation takes advantage of the new simpler and safer (better control over file descriptors) FrameBuffer interface. Signed-off-by: Niklas Söderlund Reviewed-by: Laurent Pinchart --- src/ipa/rkisp1/rkisp1.cpp | 40 +++++++++++++++++++++++++++++++++------- 1 file changed, 33 insertions(+), 7 deletions(-) (limited to 'src/ipa/rkisp1/rkisp1.cpp') diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp index 744a16ae..74b29220 100644 --- a/src/ipa/rkisp1/rkisp1.cpp +++ b/src/ipa/rkisp1/rkisp1.cpp @@ -10,6 +10,7 @@ #include #include #include +#include #include @@ -48,7 +49,8 @@ private: void setControls(unsigned int frame); void metadataReady(unsigned int frame, unsigned int aeState); - std::map bufferInfo_; + std::map buffers_; + std::map buffersMemory_; ControlInfoMap ctrls_; @@ -102,15 +104,39 @@ void IPARkISP1::configure(const std::map &streamConfig, void IPARkISP1::mapBuffers(const std::vector &buffers) { for (const IPABuffer &buffer : buffers) { - bufferInfo_[buffer.id] = buffer.memory; - bufferInfo_[buffer.id].planes()[0].mem(); + auto elem = buffers_.emplace(buffer.id, buffer.planes); + const FrameBuffer &fb = elem.first->second; + + /* + * \todo Provide a helper to mmap() buffers (possibly exposed + * to applications). + */ + buffersMemory_[buffer.id] = mmap(NULL, + fb.planes()[0].length, + PROT_READ | PROT_WRITE, + MAP_SHARED, + fb.planes()[0].fd.fd(), + 0); + + if (buffersMemory_[buffer.id] == MAP_FAILED) { + int ret = -errno; + LOG(IPARkISP1, Fatal) << "Failed to mmap buffer: " + << strerror(-ret); + } } } void IPARkISP1::unmapBuffers(const std::vector &ids) { - for (unsigned int id : ids) - bufferInfo_.erase(id); + for (unsigned int id : ids) { + const auto fb = buffers_.find(id); + if (fb == buffers_.end()) + continue; + + munmap(buffersMemory_[id], fb->second.planes()[0].length); + buffersMemory_.erase(id); + buffers_.erase(id); + } } void IPARkISP1::processEvent(const IPAOperationData &event) @@ -121,7 +147,7 @@ void IPARkISP1::processEvent(const IPAOperationData &event) unsigned int bufferId = event.data[1]; const rkisp1_stat_buffer *stats = - static_cast(bufferInfo_[bufferId].planes()[0].mem()); + static_cast(buffersMemory_[bufferId]); updateStatistics(frame, stats); break; @@ -131,7 +157,7 @@ void IPARkISP1::processEvent(const IPAOperationData &event) unsigned int bufferId = event.data[1]; rkisp1_isp_params_cfg *params = - static_cast(bufferInfo_[bufferId].planes()[0].mem()); + static_cast(buffersMemory_[bufferId]); queueRequest(frame, params, event.controls[0]); break; -- cgit v1.2.1