| // 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 <fbl/ref_ptr.h> |
| #include <fbl/unique_fd.h> |
| #include <fbl/unique_ptr.h> |
| #include <lib/fidl-utils/bind.h> |
| #include <lib/fzl/vmo-mapper.h> |
| #include <ramdevice-client/ramdisk.h> |
| #include <ramdevice-client/ramnand.h> |
| #include <zxtest/zxtest.h> |
| |
| constexpr uint64_t kBlockSize = 0x1000; |
| constexpr uint64_t kBlockCount = 0x100; |
| |
| constexpr uint32_t kOobSize = 8; |
| constexpr uint32_t kPageSize = 2048; |
| constexpr uint32_t kPagesPerBlock = 128; |
| constexpr uint32_t kSkipBlockSize = kPageSize * kPagesPerBlock; |
| constexpr uint32_t kNumBlocks = 20; |
| |
| class BlockDevice { |
| public: |
| static void Create(const fbl::unique_fd& devfs_root, const uint8_t* guid, |
| fbl::unique_ptr<BlockDevice>* device); |
| |
| static void Create(const fbl::unique_fd& devfs_root, const uint8_t* guid, uint64_t block_count, |
| fbl::unique_ptr<BlockDevice>* device); |
| |
| ~BlockDevice() { ramdisk_destroy(client_); } |
| |
| // Does not transfer ownership of the file descriptor. |
| int fd() const { return ramdisk_get_block_fd(client_); } |
| |
| private: |
| BlockDevice(ramdisk_client_t* client) : client_(client) {} |
| |
| ramdisk_client_t* client_; |
| }; |
| |
| class SkipBlockDevice { |
| public: |
| static void Create(const fuchsia_hardware_nand_RamNandInfo& nand_info, |
| fbl::unique_ptr<SkipBlockDevice>* device); |
| |
| fbl::unique_fd devfs_root() { return ctl_->devfs_root().duplicate(); } |
| |
| fzl::VmoMapper& mapper() { return mapper_; } |
| |
| ~SkipBlockDevice() = default; |
| |
| private: |
| SkipBlockDevice(fbl::RefPtr<ramdevice_client::RamNandCtl> ctl, ramdevice_client::RamNand ram_nand, |
| fzl::VmoMapper mapper) |
| : ctl_(std::move(ctl)), ram_nand_(std::move(ram_nand)), mapper_(std::move(mapper)) {} |
| |
| fbl::RefPtr<ramdevice_client::RamNandCtl> ctl_; |
| ramdevice_client::RamNand ram_nand_; |
| fzl::VmoMapper mapper_; |
| }; |