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#![allow(non_snake_case, non_upper_case_globals)]
#![allow(non_camel_case_types)]
//! CCM
//!
//! Used by: imxrt1051, imxrt1052
#[cfg(not(feature = "nosync"))]
pub use crate::imxrt105::peripherals::ccm::Instance;
pub use crate::imxrt105::peripherals::ccm::{RegisterBlock, ResetValues};
pub use crate::imxrt105::peripherals::ccm::{
CACRR, CBCDR, CBCMR, CCGR0, CCGR1, CCGR2, CCGR3, CCGR4, CCGR5, CCGR6, CCOSR, CCR, CCSR, CDCDR,
CDHIPR, CGPR, CIMR, CISR, CLPCR, CMEOR, CS1CDR, CS2CDR, CSCDR1, CSCDR2, CSCDR3, CSCMR1, CSCMR2,
CSR,
};
/// Access functions for the CCM peripheral instance
pub mod CCM {
use super::ResetValues;
#[cfg(not(feature = "nosync"))]
use super::Instance;
#[cfg(not(feature = "nosync"))]
const INSTANCE: Instance = Instance {
addr: 0x400fc000,
_marker: ::core::marker::PhantomData,
};
/// Reset values for each field in CCM
pub const reset: ResetValues = ResetValues {
CCR: 0x0401107F,
CSR: 0x00000010,
CCSR: 0x00000100,
CACRR: 0x00000001,
CBCDR: 0x000A8300,
CBCMR: 0x2DAE8324,
CSCMR1: 0x04900000,
CSCMR2: 0x13192F06,
CSCDR1: 0x06490B00,
CS1CDR: 0x0EC102C1,
CS2CDR: 0x007336C1,
CDCDR: 0x33F71F92,
CSCDR2: 0x00029150,
CSCDR3: 0x00030841,
CDHIPR: 0x00000000,
CLPCR: 0x00000079,
CISR: 0x00000000,
CIMR: 0xFFFFFFFF,
CCOSR: 0x000A0001,
CGPR: 0x0000FE62,
CCGR0: 0xFFFFFFFF,
CCGR1: 0xFFFFFFFF,
CCGR2: 0xFC3FFFFF,
CCGR3: 0xFFFFFFCF,
CCGR4: 0xFFFFFFFF,
CCGR5: 0xFFFFFFFF,
CCGR6: 0xFFFFFFFF,
CMEOR: 0xFFFFFFFF,
};
#[cfg(not(feature = "nosync"))]
#[allow(renamed_and_removed_lints)]
#[allow(private_no_mangle_statics)]
#[no_mangle]
static mut CCM_TAKEN: bool = false;
/// Safe access to CCM
///
/// 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 CCM_TAKEN {
None
} else {
CCM_TAKEN = true;
Some(INSTANCE)
}
})
}
/// Release exclusive access to CCM
///
/// 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 CCM_TAKEN && inst.addr == INSTANCE.addr {
CCM_TAKEN = false;
} else {
panic!("Released a peripheral which was not taken");
}
});
}
/// Unsafely steal CCM
///
/// 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 {
CCM_TAKEN = true;
INSTANCE
}
}
/// Raw pointer to CCM
///
/// 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 CCM: *const RegisterBlock = 0x400fc000 as *const _;