Enum DriveClass 

#[non_exhaustive]
pub enum DriveClass {
    Mt19,
}

The update dialect a drive speaks, chosen by Identity::class.

The dialect owns the update session: its command sequence, chunking, readiness timing after the burn and which bytes read-back verification may compare.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Mt19

MT1959 and MT1939: the OEM session of 12-byte CDBs. PROBE, TEST UNIT READY and PREPARE, the image in cdb::CHUNK STREAM writes, COMMIT, then TEST UNIT READY and REQUEST SENSE. The drive programs when the last chunk lands.

Implementations

impl DriveClass

pub fn steps(self) -> Vec<Step>

The commands of one update session for a layout::IMAGE_SIZE image, as the OEM tool sends them. Readiness polling and read-back verification follow in the receiver-bound executor.

pub fn verification_ranges(self, image: &[u8]) -> Vec<RangeInclusive<usize>>

Inclusive byte ranges a read-back must match: every active integrity entry, clipped to DriveClass::verify_floor. Per-unit regions are outside every entry.

impl DriveClass

pub const fn can_read(self) -> bool

Whether a host should offer automatic installed-firmware acquisition.

Stock MT19 firmware does not provide a reliable complete firmware read. Hosts should request a Current firmware file instead. Metadata and restricted memory reads remain available; this does not forbid them or a modified firmware’s separate dump command.

pub const fn of(chip: Chip) -> Self

The dialect of a drive with chip.

pub const fn chunk(self) -> usize

Bytes per STREAM write.

pub const fn ready_timeout(self) -> Duration

How long programming may keep the drive from answering TEST UNIT READY after COMMIT: 120 s.

The OEM updaters wait for the drive without a total bound and give each command a 100 s timeout, so a drive that answers within one OEM command window must not be declared failed. 120 s covers that window plus 20 s (40 polls) of margin. A shorter bound fails a drive that is still programming and invites a power cycle mid-burn; a longer one only costs time on a drive that never comes back.

pub const fn poll_interval(self) -> Duration

Delay between TEST UNIT READY polls while the drive programs.

pub const fn verify_floor(self) -> usize

Read-back verification compares no byte below this offset: the drive serves its boot area remapped (layout::BOOT_AREA).

Trait Implementations

impl Clone for DriveClass

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for DriveClass

impl Debug for DriveClass

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for DriveClass

impl Hash for DriveClass

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DriveClass

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DriveClass