zircon/system/fidl/fuchsia-hardware-nand/nand.fidl

// 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.

library fuchsia.hardware.nand;

// Matches the value of ZBI_PARTITION_GUID_LEN.
const uint32 GUID_LEN = 16;

enum Class : uint32 {
    UNKNOWN = 0;   // Unknown device.
    PARTMAP = 1;   // NAND device contains multiple partitions.
    FTL = 2;       // NAND device is a FTL partition.
    BBS = 3;       // NAND device is a bad block skip partition.
    TEST = 4;      // Test device.
};

struct Info {
    uint32 page_size;         // Read/write unit size, in bytes.
    uint32 pages_per_block;   // Erase block size, in pages.
    uint32 num_blocks;        // Device size, in erase blocks.
    uint32 ecc_bits;          // Number of ECC bits (correctable bit flips),
                              // per correction chunk.
    uint32 oob_size;          // Available out of band bytes per page.
    Class nand_class;         // The device purpose.
    array<uint8>:GUID_LEN partition_guid; // Partition type GUID from partition map.
};