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#![allow(non_snake_case, non_upper_case_globals)]
#![allow(non_camel_case_types)]
//! USB on the go high speed
//!
//! Used by: stm32f405, stm32f407, stm32f427, stm32f429, stm32f446
#[cfg(not(feature = "nosync"))]
pub use crate::stm32f4::peripherals::otg_hs_global::Instance;
pub use crate::stm32f4::peripherals::otg_hs_global::{RegisterBlock, ResetValues};
pub use crate::stm32f4::peripherals::otg_hs_global::{
CID, DIEPTXF1, DIEPTXF2, DIEPTXF3, DIEPTXF4, DIEPTXF5, GAHBCFG, GCCFG, GINTMSK, GINTSTS,
GNPTXFSIZ, GNPTXSTS, GOTGCTL, GOTGINT, GRSTCTL, GRXFSIZ, GRXSTSP, GRXSTSR, GUSBCFG, HPTXFSIZ,
};
/// Access functions for the OTG_HS_GLOBAL peripheral instance
pub mod OTG_HS_GLOBAL {
use super::ResetValues;
#[cfg(not(feature = "nosync"))]
use super::Instance;
#[cfg(not(feature = "nosync"))]
const INSTANCE: Instance = Instance {
addr: 0x40040000,
_marker: ::core::marker::PhantomData,
};
/// Reset values for each field in OTG_HS_GLOBAL
pub const reset: ResetValues = ResetValues {
GOTGCTL: 0x00000800,
GOTGINT: 0x00000000,
GAHBCFG: 0x00000000,
GUSBCFG: 0x00000A00,
GRSTCTL: 0x20000000,
GINTSTS: 0x04000020,
GINTMSK: 0x00000000,
GRXSTSR: 0x00000000,
GRXSTSP: 0x00000000,
GRXFSIZ: 0x00000200,
GNPTXFSIZ: 0x00000200,
GNPTXSTS: 0x00080200,
GCCFG: 0x00000000,
CID: 0x00001200,
HPTXFSIZ: 0x02000600,
DIEPTXF1: 0x02000400,
DIEPTXF2: 0x02000400,
DIEPTXF3: 0x02000400,
DIEPTXF4: 0x02000400,
DIEPTXF5: 0x02000400,
};
#[cfg(not(feature = "nosync"))]
#[allow(renamed_and_removed_lints)]
#[allow(private_no_mangle_statics)]
#[no_mangle]
static mut OTG_HS_GLOBAL_TAKEN: bool = false;
/// Safe access to OTG_HS_GLOBAL
///
/// 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_HS_GLOBAL_TAKEN {
None
} else {
OTG_HS_GLOBAL_TAKEN = true;
Some(INSTANCE)
}
})
}
/// Release exclusive access to OTG_HS_GLOBAL
///
/// 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_HS_GLOBAL_TAKEN && inst.addr == INSTANCE.addr {
OTG_HS_GLOBAL_TAKEN = false;
} else {
panic!("Released a peripheral which was not taken");
}
});
}
/// Unsafely steal OTG_HS_GLOBAL
///
/// 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_HS_GLOBAL_TAKEN = true;
INSTANCE
}
}
/// Raw pointer to OTG_HS_GLOBAL
///
/// 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_HS_GLOBAL: *const RegisterBlock = 0x40040000 as *const _;