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#![allow(non_snake_case, non_upper_case_globals)]
#![allow(non_camel_case_types)]
//! Hash processor
//!
//! Used by: stm32f745, stm32f750, stm32f765, stm32f7x6, stm32f7x7, stm32f7x9
#[cfg(not(feature = "nosync"))]
pub use crate::stm32f7::peripherals::hash::Instance;
pub use crate::stm32f7::peripherals::hash::{RegisterBlock, ResetValues};
pub use crate::stm32f7::peripherals::hash::{
CR, CSR0, CSR1, CSR10, CSR11, CSR12, CSR13, CSR14, CSR15, CSR16, CSR17, CSR18, CSR19, CSR2,
CSR20, CSR21, CSR22, CSR23, CSR24, CSR25, CSR26, CSR27, CSR28, CSR29, CSR3, CSR30, CSR31,
CSR32, CSR33, CSR34, CSR35, CSR36, CSR37, CSR38, CSR39, CSR4, CSR40, CSR41, CSR42, CSR43,
CSR44, CSR45, CSR46, CSR47, CSR48, CSR49, CSR5, CSR50, CSR51, CSR52, CSR53, CSR6, CSR7, CSR8,
CSR9, DIN, HASH_HR0, HASH_HR1, HASH_HR2, HASH_HR3, HASH_HR4, HASH_HR5, HASH_HR6, HASH_HR7, HR0,
HR1, HR2, HR3, HR4, IMR, SR, STR,
};
/// Access functions for the HASH peripheral instance
pub mod HASH {
use super::ResetValues;
#[cfg(not(feature = "nosync"))]
use super::Instance;
#[cfg(not(feature = "nosync"))]
const INSTANCE: Instance = Instance {
addr: 0x50060400,
_marker: ::core::marker::PhantomData,
};
/// Reset values for each field in HASH
pub const reset: ResetValues = ResetValues {
CR: 0x00000000,
DIN: 0x00000000,
STR: 0x00000000,
HR0: 0x00000000,
HR1: 0x00000000,
HR2: 0x00000000,
HR3: 0x00000000,
HR4: 0x00000000,
IMR: 0x00000000,
SR: 0x00000001,
CSR0: 0x00000000,
CSR1: 0x00000000,
CSR2: 0x00000000,
CSR3: 0x00000000,
CSR4: 0x00000000,
CSR5: 0x00000000,
CSR6: 0x00000000,
CSR7: 0x00000000,
CSR8: 0x00000000,
CSR9: 0x00000000,
CSR10: 0x00000000,
CSR11: 0x00000000,
CSR12: 0x00000000,
CSR13: 0x00000000,
CSR14: 0x00000000,
CSR15: 0x00000000,
CSR16: 0x00000000,
CSR17: 0x00000000,
CSR18: 0x00000000,
CSR19: 0x00000000,
CSR20: 0x00000000,
CSR21: 0x00000000,
CSR22: 0x00000000,
CSR23: 0x00000000,
CSR24: 0x00000000,
CSR25: 0x00000000,
CSR26: 0x00000000,
CSR27: 0x00000000,
CSR28: 0x00000000,
CSR29: 0x00000000,
CSR30: 0x00000000,
CSR31: 0x00000000,
CSR32: 0x00000000,
CSR33: 0x00000000,
CSR34: 0x00000000,
CSR35: 0x00000000,
CSR36: 0x00000000,
CSR37: 0x00000000,
CSR38: 0x00000000,
CSR39: 0x00000000,
CSR40: 0x00000000,
CSR41: 0x00000000,
CSR42: 0x00000000,
CSR43: 0x00000000,
CSR44: 0x00000000,
CSR45: 0x00000000,
CSR46: 0x00000000,
CSR47: 0x00000000,
CSR48: 0x00000000,
CSR49: 0x00000000,
CSR50: 0x00000000,
CSR51: 0x00000000,
CSR52: 0x00000000,
CSR53: 0x00000000,
HASH_HR0: 0x00000000,
HASH_HR1: 0x00000000,
HASH_HR2: 0x00000000,
HASH_HR3: 0x00000000,
HASH_HR4: 0x00000000,
HASH_HR5: 0x00000000,
HASH_HR6: 0x00000000,
HASH_HR7: 0x00000000,
};
#[cfg(not(feature = "nosync"))]
#[allow(renamed_and_removed_lints)]
#[allow(private_no_mangle_statics)]
#[no_mangle]
static mut HASH_TAKEN: bool = false;
/// Safe access to HASH
///
/// This function returns `Some(Instance)` if this instance is not
/// currently taken, and `None` if it is. This ensures that if you
/// do get `Some(Instance)`, you are ensured unique access to
/// the peripheral and there cannot be data races (unless other
/// code uses `unsafe`, of course). You can then pass the
/// `Instance` around to other functions as required. When you're
/// done with it, you can call `release(instance)` to return it.
///
/// `Instance` itself dereferences to a `RegisterBlock`, which
/// provides access to the peripheral's registers.
#[cfg(not(feature = "nosync"))]
#[inline]
pub fn take() -> Option<Instance> {
external_cortex_m::interrupt::free(|_| unsafe {
if HASH_TAKEN {
None
} else {
HASH_TAKEN = true;
Some(INSTANCE)
}
})
}
/// Release exclusive access to HASH
///
/// This function allows you to return an `Instance` so that it
/// is available to `take()` again. This function will panic if
/// you return a different `Instance` or if this instance is not
/// already taken.
#[cfg(not(feature = "nosync"))]
#[inline]
pub fn release(inst: Instance) {
external_cortex_m::interrupt::free(|_| unsafe {
if HASH_TAKEN && inst.addr == INSTANCE.addr {
HASH_TAKEN = false;
} else {
panic!("Released a peripheral which was not taken");
}
});
}
/// Unsafely steal HASH
///
/// This function is similar to take() but forcibly takes the
/// Instance, marking it as taken irregardless of its previous
/// state.
#[cfg(not(feature = "nosync"))]
#[inline]
pub unsafe fn steal() -> Instance {
HASH_TAKEN = true;
INSTANCE
}
}
/// Raw pointer to HASH
///
/// Dereferencing this is unsafe because you are not ensured unique
/// access to the peripheral, so you may encounter data races with
/// other users of this peripheral. It is up to you to ensure you
/// will not cause data races.
///
/// This constant is provided for ease of use in unsafe code: you can
/// simply call for example `write_reg!(gpio, GPIOA, ODR, 1);`.
pub const HASH: *const RegisterBlock = 0x50060400 as *const _;