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#![allow(non_snake_case, non_upper_case_globals)]
#![allow(non_camel_case_types)]
//! USB on the go full speed
//!
//! Used by: stm32f412, stm32f413, stm32f446, stm32f469
#[cfg(not(feature = "nosync"))]
pub use crate::stm32f4::peripherals::otg_fs_host_v2::Instance;
pub use crate::stm32f4::peripherals::otg_fs_host_v2::{RegisterBlock, ResetValues};
pub use crate::stm32f4::peripherals::otg_fs_host_v2::{
HAINT, HAINTMSK, HCCHAR0, HCCHAR1, HCCHAR2, HCCHAR3, HCCHAR4, HCCHAR5, HCCHAR6, HCCHAR7, HCFG,
HCINT0, HCINT1, HCINT2, HCINT3, HCINT4, HCINT5, HCINT6, HCINT7, HCINTMSK0, HCINTMSK1,
HCINTMSK2, HCINTMSK3, HCINTMSK4, HCINTMSK5, HCINTMSK6, HCINTMSK7, HCTSIZ0, HCTSIZ1, HCTSIZ2,
HCTSIZ3, HCTSIZ4, HCTSIZ5, HCTSIZ6, HCTSIZ7, HFIR, HFNUM, HPRT, HPTXSTS,
};
/// Access functions for the OTG_FS_HOST peripheral instance
pub mod OTG_FS_HOST {
use super::ResetValues;
#[cfg(not(feature = "nosync"))]
use super::Instance;
#[cfg(not(feature = "nosync"))]
const INSTANCE: Instance = Instance {
addr: 0x50000400,
_marker: ::core::marker::PhantomData,
};
/// Reset values for each field in OTG_FS_HOST
pub const reset: ResetValues = ResetValues {
HCFG: 0x00000000,
HFIR: 0x0000EA60,
HFNUM: 0x00003FFF,
HPTXSTS: 0x00080100,
HAINT: 0x00000000,
HAINTMSK: 0x00000000,
HPRT: 0x00000000,
HCCHAR0: 0x00000000,
HCCHAR1: 0x00000000,
HCCHAR2: 0x00000000,
HCCHAR3: 0x00000000,
HCCHAR4: 0x00000000,
HCCHAR5: 0x00000000,
HCCHAR6: 0x00000000,
HCCHAR7: 0x00000000,
HCINT0: 0x00000000,
HCINT1: 0x00000000,
HCINT2: 0x00000000,
HCINT3: 0x00000000,
HCINT4: 0x00000000,
HCINT5: 0x00000000,
HCINT6: 0x00000000,
HCINT7: 0x00000000,
HCINTMSK0: 0x00000000,
HCINTMSK1: 0x00000000,
HCINTMSK2: 0x00000000,
HCINTMSK3: 0x00000000,
HCINTMSK4: 0x00000000,
HCINTMSK5: 0x00000000,
HCINTMSK6: 0x00000000,
HCINTMSK7: 0x00000000,
HCTSIZ0: 0x00000000,
HCTSIZ1: 0x00000000,
HCTSIZ2: 0x00000000,
HCTSIZ3: 0x00000000,
HCTSIZ4: 0x00000000,
HCTSIZ5: 0x00000000,
HCTSIZ6: 0x00000000,
HCTSIZ7: 0x00000000,
};
#[cfg(not(feature = "nosync"))]
#[allow(renamed_and_removed_lints)]
#[allow(private_no_mangle_statics)]
#[no_mangle]
static mut OTG_FS_HOST_TAKEN: bool = false;
/// Safe access to OTG_FS_HOST
///
/// 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 OTG_FS_HOST_TAKEN {
None
} else {
OTG_FS_HOST_TAKEN = true;
Some(INSTANCE)
}
})
}
/// Release exclusive access to OTG_FS_HOST
///
/// 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 OTG_FS_HOST_TAKEN && inst.addr == INSTANCE.addr {
OTG_FS_HOST_TAKEN = false;
} else {
panic!("Released a peripheral which was not taken");
}
});
}
/// Unsafely steal OTG_FS_HOST
///
/// 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 {
OTG_FS_HOST_TAKEN = true;
INSTANCE
}
}
/// Raw pointer to OTG_FS_HOST
///
/// 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 OTG_FS_HOST: *const RegisterBlock = 0x50000400 as *const _;