blob: 8ba270c29b8fa866be2b4df8e894aa514bc9891a [file] [log] [blame]
// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <ddk/binding.h>
#include <ddk/debug.h>
#include <ddk/device.h>
#include <ddk/driver.h>
#include <ddk/metadata.h>
#include <ddk/platform-defs.h>
#include <ddktl/device.h>
#include <ddktl/protocol/empty-protocol.h>
#include <fbl/alloc_checker.h>
#include "test-metadata.h"
class TestCompatibilityHookDriver;
using DeviceType = ddk::Device<TestCompatibilityHookDriver, ddk::Unbindable>;
class TestCompatibilityHookDriver : public DeviceType,
public ddk::EmptyProtocol<ZX_PROTOCOL_TEST_CHILD> {
public:
TestCompatibilityHookDriver(zx_device_t* parent)
: DeviceType(parent) {}
zx_status_t Bind();
void DdkUnbind() {
DdkRemove();
}
void DdkRelease() {
delete this;
}
private:
struct compatibility_test_metadata metadata_;
};
zx_status_t TestCompatibilityHookDriver::Bind() {
size_t size;
zx_status_t status = DdkGetMetadataSize(DEVICE_METADATA_TEST, &size);
if (status != ZX_OK) {
return status;
}
if (size != sizeof(struct compatibility_test_metadata)) {
printf("Did not get the metadata correctly. size is %lu\n", size);
return ZX_ERR_INTERNAL;
}
status = DdkGetMetadata(DEVICE_METADATA_TEST, &metadata_, size, &size);
if (status != ZX_OK) {
return status;
}
DdkAdd("compatibility-test", DEVICE_ADD_INVISIBLE);
status = DdkAddMetadata(DEVICE_METADATA_PRIVATE, &metadata_, size);
DdkMakeVisible();
return status;
}
zx_status_t test_compatibility_hook_bind(void* ctx, zx_device_t* device) {
fbl::AllocChecker ac;
auto dev = fbl::make_unique_checked<TestCompatibilityHookDriver>(&ac, device);
if (!ac.check()) {
return ZX_ERR_NO_MEMORY;
}
auto status = dev->Bind();
if (status == ZX_OK) {
// devmgr is now in charge of the memory for dev
__UNUSED auto ptr = dev.release();
}
return status;
}
static zx_driver_ops_t test_compatibility_hook_driver_ops = []() -> zx_driver_ops_t {
zx_driver_ops_t ops;
ops.version = DRIVER_OPS_VERSION;
ops.bind = test_compatibility_hook_bind;
return ops;
}();
// clang-format off
ZIRCON_DRIVER_BEGIN(TestCompatibilityHook, test_compatibility_hook_driver_ops, "zircon", "0.1", 2)
BI_ABORT_IF(NE, BIND_PLATFORM_DEV_VID, PDEV_VID_TEST),
BI_MATCH_IF(EQ, BIND_PLATFORM_DEV_PID, PDEV_PID_COMPATIBILITY_TEST),
ZIRCON_DRIVER_END(TestCompatibilityHook)
// clang-format on