| // Copyright 2017 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 <stdio.h> |
| #include <string.h> |
| |
| #include <ddk/binding.h> |
| #include <ddk/device.h> |
| #include <ddk/driver.h> |
| #include <ddktl/device.h> |
| #include <fuchsia/device/manager/c/fidl.h> |
| #include <lib/zx/socket.h> |
| #include <lib/zx/vmo.h> |
| |
| #include "../devhost/zx-device.h" |
| |
| namespace { |
| |
| class Dmctl; |
| using DmctlBase = ddk::Device<Dmctl, ddk::Messageable>; |
| |
| class Dmctl : public DmctlBase { |
| public: |
| Dmctl(zx_device_t* parent); |
| |
| static zx_status_t Bind(void* ctx, zx_device_t* parent); |
| |
| void DdkRelease(); |
| zx_status_t DdkWrite(const void* buf, size_t count, zx_off_t off, size_t* actual); |
| zx_status_t DdkMessage(fidl_msg_t* msg, fidl_txn_t* txn); |
| }; |
| |
| Dmctl::Dmctl(zx_device_t* parent) : DmctlBase(parent) {} |
| |
| zx_status_t Dmctl::Bind(void* ctx, zx_device_t* parent) { |
| auto dev = std::make_unique<Dmctl>(parent); |
| auto status = dev->DdkAdd("dmctl"); |
| if (status == ZX_OK) { |
| // devmgr owns the memory now |
| __UNUSED auto ptr = dev.release(); |
| } |
| return status; |
| } |
| |
| void Dmctl::DdkRelease() { |
| // This driver does not expect to be shut down. |
| abort(); |
| } |
| |
| static zx_status_t fidl_PerformMexec(void* ctx, zx_handle_t raw_kernel, zx_handle_t raw_bootdata) { |
| zx::vmo kernel(raw_kernel); |
| zx::vmo bootdata(raw_bootdata); |
| auto zxdev = static_cast<zx_device_t*>(ctx); |
| const zx::channel& rpc = *zxdev->rpc; |
| |
| return fuchsia_device_manager_CoordinatorDmMexec(rpc.get(), kernel.release(), |
| bootdata.release()); |
| } |
| |
| static fuchsia_device_manager_ExternalController_ops_t fidl_ops = { |
| .PerformMexec = fidl_PerformMexec, |
| }; |
| |
| zx_status_t Dmctl::DdkMessage(fidl_msg_t* msg, fidl_txn_t* txn) { |
| return fuchsia_device_manager_ExternalController_dispatch(zxdev(), txn, msg, &fidl_ops); |
| } |
| |
| zx_driver_ops_t dmctl_driver_ops = []() { |
| zx_driver_ops_t ops = {}; |
| ops.version = DRIVER_OPS_VERSION; |
| ops.bind = Dmctl::Bind; |
| return ops; |
| }(); |
| |
| } // namespace |
| |
| ZIRCON_DRIVER_BEGIN(dmctl, dmctl_driver_ops, "zircon", "0.1", 1) |
| BI_MATCH_IF(EQ, BIND_PROTOCOL, ZX_PROTOCOL_MISC_PARENT), ZIRCON_DRIVER_END(dmctl) |