| // 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 <lib/fdio/fd.h> |
| #include <lib/fdio/fdio.h> |
| #include <lib/fdio/namespace.h> |
| #include <lib/fdio/spawn.h> |
| #include <lib/fdio/unsafe.h> |
| #include <lib/fdio/watcher.h> |
| |
| #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 <fbl/alloc_checker.h> |
| #include <fbl/auto_call.h> |
| |
| #include "test-metadata.h" |
| |
| class TestDevhostDriverChild; |
| using DeviceType = ddk::Device<TestDevhostDriverChild, ddk::UnbindableNew, ddk::Initializable>; |
| class TestDevhostDriverChild : public DeviceType { |
| public: |
| TestDevhostDriverChild(zx_device_t* parent) : DeviceType(parent) {} |
| static zx_status_t Create(void* ctx, zx_device_t* device); |
| zx_status_t Bind(); |
| void DdkUnbindNew(ddk::UnbindTxn txn) { txn.Reply(); } |
| void DdkRelease() { delete this; } |
| void DdkInit(ddk::InitTxn txn); |
| |
| private: |
| struct devhost_test_metadata test_metadata_; |
| }; |
| |
| zx_status_t TestDevhostDriverChild::Bind() { |
| size_t actual; |
| auto status = |
| DdkGetMetadata(DEVICE_METADATA_PRIVATE, &test_metadata_, sizeof(test_metadata_), &actual); |
| if (status != ZX_OK || actual != sizeof(test_metadata_)) { |
| zxlogf(ERROR, "TestDevhostDriverChild::Bind: Unable to get metadata correctly"); |
| return ZX_ERR_INTERNAL; |
| } |
| return DdkAdd("devhost-test-child"); |
| } |
| |
| zx_status_t TestDevhostDriverChild::Create(void* ctx, zx_device_t* device) { |
| fbl::AllocChecker ac; |
| auto dev = fbl::make_unique_checked<TestDevhostDriverChild>(&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; |
| } |
| |
| void TestDevhostDriverChild::DdkInit(ddk::InitTxn txn) { |
| if (test_metadata_.init_reply_success) { |
| txn.Reply(ZX_OK, nullptr); |
| } else { |
| txn.Reply(ZX_ERR_IO, nullptr); |
| } |
| } |
| |
| static zx_driver_ops_t test_devhost_child_driver_ops = []() -> zx_driver_ops_t { |
| zx_driver_ops_t ops = {}; |
| ops.version = DRIVER_OPS_VERSION; |
| ops.bind = TestDevhostDriverChild::Create; |
| return ops; |
| }(); |
| |
| // clang-format off |
| ZIRCON_DRIVER_BEGIN(test-devhost-child, test_devhost_child_driver_ops, "zircon", "0.1", 1) |
| BI_MATCH_IF(EQ, BIND_PROTOCOL, ZX_PROTOCOL_DEVHOST_TEST), |
| ZIRCON_DRIVER_END(test-devhost-child) |
| // clang-format on |