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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2020-03-25 09:36:35 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2020-03-25 12:21:06 +0200
commita25533089bda04daf0243eda7e316baea0737e19 (patch)
tree8997f2c22a0861e0da134a9a1c099f02bd9a7f57 /src/ipa/vimc/vimc.cpp
parent5e8933eeebcedda55d4c4e84db9b4983eecefe1b (diff)
ipa: Move vimc to a subdirectory
Give a subdirectory to all IPA modules to make the structure of the source tree more consistent. This will also simplify the implementation of IPA module selection at build time. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Diffstat (limited to 'src/ipa/vimc/vimc.cpp')
-rw-r--r--src/ipa/vimc/vimc.cpp119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/ipa/vimc/vimc.cpp b/src/ipa/vimc/vimc.cpp
new file mode 100644
index 00000000..6e2095b5
--- /dev/null
+++ b/src/ipa/vimc/vimc.cpp
@@ -0,0 +1,119 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * ipa_vimc.cpp - Vimc Image Processing Algorithm module
+ */
+
+#include <ipa/ipa_vimc.h>
+
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <iostream>
+
+#include <ipa/ipa_interface.h>
+#include <ipa/ipa_module_info.h>
+
+#include <libipa/ipa_interface_wrapper.h>
+
+#include "log.h"
+
+namespace libcamera {
+
+LOG_DEFINE_CATEGORY(IPAVimc)
+
+class IPAVimc : public IPAInterface
+{
+public:
+ IPAVimc();
+ ~IPAVimc();
+
+ int init() override;
+ void configure(const std::map<unsigned int, IPAStream> &streamConfig,
+ const std::map<unsigned int, const ControlInfoMap &> &entityControls) override {}
+ void mapBuffers(const std::vector<IPABuffer> &buffers) override {}
+ void unmapBuffers(const std::vector<unsigned int> &ids) override {}
+ void processEvent(const IPAOperationData &event) override {}
+
+private:
+ void initTrace();
+ void trace(enum IPAOperationCode operation);
+
+ int fd_;
+};
+
+IPAVimc::IPAVimc()
+ : fd_(-1)
+{
+ initTrace();
+}
+
+IPAVimc::~IPAVimc()
+{
+ if (fd_)
+ ::close(fd_);
+}
+
+int IPAVimc::init()
+{
+ trace(IPAOperationInit);
+
+ LOG(IPAVimc, Debug) << "initializing vimc IPA!";
+
+ return 0;
+}
+
+void IPAVimc::initTrace()
+{
+ struct stat fifoStat;
+ int ret = stat(VIMC_IPA_FIFO_PATH, &fifoStat);
+ if (ret)
+ return;
+
+ ret = ::open(VIMC_IPA_FIFO_PATH, O_WRONLY);
+ if (ret < 0) {
+ ret = errno;
+ LOG(IPAVimc, Error) << "Failed to open vimc IPA test FIFO: "
+ << strerror(ret);
+ return;
+ }
+
+ fd_ = ret;
+}
+
+void IPAVimc::trace(enum IPAOperationCode operation)
+{
+ if (fd_ < 0)
+ return;
+
+ int ret = ::write(fd_, &operation, sizeof(operation));
+ if (ret < 0) {
+ ret = errno;
+ LOG(IPAVimc, Error) << "Failed to write to vimc IPA test FIFO: "
+ << strerror(ret);
+ }
+}
+
+/*
+ * External IPA module interface
+ */
+
+extern "C" {
+const struct IPAModuleInfo ipaModuleInfo = {
+ IPA_MODULE_API_VERSION,
+ 0,
+ "PipelineHandlerVimc",
+ "Dummy IPA for Vimc",
+ LICENSE,
+};
+
+struct ipa_context *ipaCreate()
+{
+ return new IPAInterfaceWrapper(std::make_unique<IPAVimc>());
+}
+}
+
+} /* namespace libcamera */