| // Copyright 2018 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 "oob_doubler.h" |
| |
| #include <zircon/assert.h> |
| |
| namespace ftl { |
| |
| void OobDoubler::Query(nand_info_t* info_out, size_t* nand_op_size_out) { |
| parent_.Query(info_out, nand_op_size_out); |
| active_ = info_out->oob_size < kThreshold; |
| if (active_) { |
| info_out->page_size *= 2; |
| info_out->oob_size *= 2; |
| info_out->pages_per_block /= 2; |
| } |
| } |
| |
| void OobDoubler::Queue(nand_operation_t* operation, nand_queue_callback completion_cb, |
| void* cookie) { |
| if (active_) { |
| switch (operation->command) { |
| case NAND_OP_READ: |
| case NAND_OP_WRITE: |
| operation->rw.length *= 2; |
| operation->rw.offset_nand *= 2; |
| operation->rw.offset_data_vmo *= 2; |
| operation->rw.offset_oob_vmo *= 2; |
| break; |
| |
| case NAND_OP_ERASE: |
| break; |
| |
| default: |
| ZX_DEBUG_ASSERT(false); |
| } |
| } |
| parent_.Queue(operation, completion_cb, cookie); |
| } |
| |
| } // namespace ftl. |
