tools/pci: add wrapper for libpciaccess
This allows unit testing code that uses libpciaccess.
Signed-off-by: Benjamin Fair <benjaminfair@google.com>
Change-Id: Iec559c72e0e7b6c2e8737a54bb3e88fe1e0f4fdb
diff --git a/tools/pciaccess.cpp b/tools/pciaccess.cpp
new file mode 100644
index 0000000..8aced6f
--- /dev/null
+++ b/tools/pciaccess.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2020 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "pciaccess.hpp"
+
+#include <cstdio>
+#include <cstring>
+#include <system_error>
+
+namespace host_tool
+{
+
+struct pci_device_iterator* PciAccessImpl::pci_id_match_iterator_create(
+ const struct pci_id_match* match) const
+{
+ return ::pci_id_match_iterator_create(match);
+}
+
+void PciAccessImpl::pci_iterator_destroy(struct pci_device_iterator* iter) const
+{
+ return ::pci_iterator_destroy(iter);
+}
+
+struct pci_device*
+ PciAccessImpl::pci_device_next(struct pci_device_iterator* iter) const
+{
+ return ::pci_device_next(iter);
+}
+
+int PciAccessImpl::pci_device_probe(struct pci_device* dev) const
+{
+ return ::pci_device_probe(dev);
+}
+
+int PciAccessImpl::pci_device_map_range(struct pci_device* dev, pciaddr_t base,
+ pciaddr_t size, unsigned map_flags,
+ void** addr) const
+{
+ return ::pci_device_map_range(dev, base, size, map_flags, addr);
+}
+
+int PciAccessImpl::pci_device_unmap_range(struct pci_device* dev, void* memory,
+ pciaddr_t size) const
+{
+ return ::pci_device_unmap_range(dev, memory, size);
+}
+
+PciAccessImpl::PciAccessImpl()
+{
+ int ret = ::pci_system_init();
+ if (ret)
+ {
+ throw std::system_error(ret, std::generic_category(),
+ "Error setting up libpciaccess");
+ }
+}
+
+PciAccessImpl::~PciAccessImpl()
+{
+ ::pci_system_cleanup();
+}
+
+} // namespace host_tool