Struct State

#[repr(transparent)]
pub struct State(pub u32);

This register controls the power state of the 4 power domains. The current power state is indicated in POWMAN_STATE_CURRENT which is read-only. To change the state, write to POWMAN_STATE_REQ. The coding of POWMAN_STATE_CURRENT & POWMAN_STATE_REQ corresponds to the power states defined in the datasheet: bit 3 = SWCORE bit 2 = XIP cache bit 1 = SRAM0 bit 0 = SRAM1 0 = powered up 1 = powered down When POWMAN_STATE_REQ is written, the POWMAN_STATE_WAITING flag is set while the Power Manager determines what is required. If an invalid transition is requested the Power Manager will still register the request in POWMAN_STATE_REQ but will also set the POWMAN_BAD_REQ flag. It will then implement the power-up requests and ignore the power down requests. To do nothing would risk entering an unrecoverable lock-up state. Invalid requests are: any combination of power up and power down requests any request that results in swcore boing powered and xip unpowered If the request is to power down the switched-core domain then POWMAN_STATE_WAITING stays active until the processors halt. During this time the POWMAN_STATE_REQ field can be re-written to change or cancel the request. When the power state transition begins the POWMAN_STATE_WAITING_flag is cleared, the POWMAN_STATE_CHANGING flag is set and POWMAN register writes are ignored until the transition completes.

Tuple Fields

0: u32

Implementations

impl State

pub const fn current(&self) -> u8

pub fn set_current(&mut self, val: u8)

pub const fn req(&self) -> u8

pub fn set_req(&mut self, val: u8)

pub const fn req_ignored(&self) -> bool

pub fn set_req_ignored(&mut self, val: bool)

pub const fn pwrup_while_waiting(&self) -> bool

Request ignored because of a pending pwrup request. See current_pwrup_req. Note this blocks powering up AND powering down.

pub fn set_pwrup_while_waiting(&mut self, val: bool)

Request ignored because of a pending pwrup request. See current_pwrup_req. Note this blocks powering up AND powering down.

pub const fn bad_sw_req(&self) -> bool

Bad software initiated state request. No action taken.

pub fn set_bad_sw_req(&mut self, val: bool)

Bad software initiated state request. No action taken.

pub const fn bad_hw_req(&self) -> bool

Bad hardware initiated state request. Went back to state 0 (i.e. everything powered up)

pub fn set_bad_hw_req(&mut self, val: bool)

Bad hardware initiated state request. Went back to state 0 (i.e. everything powered up)

pub const fn waiting(&self) -> bool

pub fn set_waiting(&mut self, val: bool)

pub const fn changing(&self) -> bool

pub fn set_changing(&mut self, val: bool)

Trait Implementations

impl Clone for State

fn clone(&self) -> State

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for State

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

Formats the value using the given formatter.

impl Default for State

fn default() -> State

Returns the “default value” for a type.

impl PartialEq for State

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for State

impl Eq for State

impl StructuralPartialEq for State