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#![allow(non_snake_case, non_upper_case_globals)]
#![allow(non_camel_case_types)]
//! Floting point unit
#[cfg(not(feature = "nosync"))]
use core::marker::PhantomData;
use RWRegister;
/// Floating-point context control register
pub mod FPCCR {
/// LSPACT
pub mod LSPACT {
/// Offset (0 bits)
pub const offset: u32 = 0;
/// Mask (1 bit: 1 << 0)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// USER
pub mod USER {
/// Offset (1 bits)
pub const offset: u32 = 1;
/// Mask (1 bit: 1 << 1)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// THREAD
pub mod THREAD {
/// Offset (3 bits)
pub const offset: u32 = 3;
/// Mask (1 bit: 1 << 3)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// HFRDY
pub mod HFRDY {
/// Offset (4 bits)
pub const offset: u32 = 4;
/// Mask (1 bit: 1 << 4)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// MMRDY
pub mod MMRDY {
/// Offset (5 bits)
pub const offset: u32 = 5;
/// Mask (1 bit: 1 << 5)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// BFRDY
pub mod BFRDY {
/// Offset (6 bits)
pub const offset: u32 = 6;
/// Mask (1 bit: 1 << 6)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// MONRDY
pub mod MONRDY {
/// Offset (8 bits)
pub const offset: u32 = 8;
/// Mask (1 bit: 1 << 8)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// LSPEN
pub mod LSPEN {
/// Offset (30 bits)
pub const offset: u32 = 30;
/// Mask (1 bit: 1 << 30)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// ASPEN
pub mod ASPEN {
/// Offset (31 bits)
pub const offset: u32 = 31;
/// Mask (1 bit: 1 << 31)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
}
/// Floating-point context address register
pub mod FPCAR {
/// Location of unpopulated floating-point
pub mod ADDRESS {
/// Offset (3 bits)
pub const offset: u32 = 3;
/// Mask (29 bits: 0x1fffffff << 3)
pub const mask: u32 = 0x1fffffff << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
}
/// Floating-point status control register
pub mod FPSCR {
/// Invalid operation cumulative exception bit
pub mod IOC {
/// Offset (0 bits)
pub const offset: u32 = 0;
/// Mask (1 bit: 1 << 0)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Division by zero cumulative exception bit.
pub mod DZC {
/// Offset (1 bits)
pub const offset: u32 = 1;
/// Mask (1 bit: 1 << 1)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Overflow cumulative exception bit
pub mod OFC {
/// Offset (2 bits)
pub const offset: u32 = 2;
/// Mask (1 bit: 1 << 2)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Underflow cumulative exception bit
pub mod UFC {
/// Offset (3 bits)
pub const offset: u32 = 3;
/// Mask (1 bit: 1 << 3)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Inexact cumulative exception bit
pub mod IXC {
/// Offset (4 bits)
pub const offset: u32 = 4;
/// Mask (1 bit: 1 << 4)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Input denormal cumulative exception bit.
pub mod IDC {
/// Offset (7 bits)
pub const offset: u32 = 7;
/// Mask (1 bit: 1 << 7)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Rounding Mode control field
pub mod RMode {
/// Offset (22 bits)
pub const offset: u32 = 22;
/// Mask (2 bits: 0b11 << 22)
pub const mask: u32 = 0b11 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Flush-to-zero mode control bit:
pub mod FZ {
/// Offset (24 bits)
pub const offset: u32 = 24;
/// Mask (1 bit: 1 << 24)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Default NaN mode control bit
pub mod DN {
/// Offset (25 bits)
pub const offset: u32 = 25;
/// Mask (1 bit: 1 << 25)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Alternative half-precision control bit
pub mod AHP {
/// Offset (26 bits)
pub const offset: u32 = 26;
/// Mask (1 bit: 1 << 26)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Overflow condition code flag
pub mod V {
/// Offset (28 bits)
pub const offset: u32 = 28;
/// Mask (1 bit: 1 << 28)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Carry condition code flag
pub mod C {
/// Offset (29 bits)
pub const offset: u32 = 29;
/// Mask (1 bit: 1 << 29)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Zero condition code flag
pub mod Z {
/// Offset (30 bits)
pub const offset: u32 = 30;
/// Mask (1 bit: 1 << 30)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
/// Negative condition code flag
pub mod N {
/// Offset (31 bits)
pub const offset: u32 = 31;
/// Mask (1 bit: 1 << 31)
pub const mask: u32 = 1 << offset;
/// Read-only values (empty)
pub mod R {}
/// Write-only values (empty)
pub mod W {}
/// Read-write values (empty)
pub mod RW {}
}
}
pub struct RegisterBlock {
/// Floating-point context control register
pub FPCCR: RWRegister<u32>,
/// Floating-point context address register
pub FPCAR: RWRegister<u32>,
/// Floating-point status control register
pub FPSCR: RWRegister<u32>,
}
pub struct ResetValues {
pub FPCCR: u32,
pub FPCAR: u32,
pub FPSCR: u32,
}
#[cfg(not(feature = "nosync"))]
pub struct Instance {
pub(crate) addr: u32,
pub(crate) _marker: PhantomData<*const RegisterBlock>,
}
#[cfg(not(feature = "nosync"))]
impl ::core::ops::Deref for Instance {
type Target = RegisterBlock;
#[inline(always)]
fn deref(&self) -> &RegisterBlock {
unsafe { &*(self.addr as *const _) }
}
}
/// Access functions for the FPU peripheral instance
pub mod FPU {
#[cfg(not(feature = "nosync"))]
use external_cortex_m;
use super::ResetValues;
#[cfg(not(feature = "nosync"))]
use super::Instance;
#[cfg(not(feature = "nosync"))]
const INSTANCE: Instance = Instance {
addr: 0xe000ef34,
_marker: ::core::marker::PhantomData,
};
/// Reset values for each field in FPU
pub const reset: ResetValues = ResetValues {
FPCCR: 0x00000000,
FPCAR: 0x00000000,
FPSCR: 0x00000000,
};
#[cfg(not(feature = "nosync"))]
#[allow(renamed_and_removed_lints)]
#[allow(private_no_mangle_statics)]
#[no_mangle]
static mut FPU_TAKEN: bool = false;
/// Safe access to FPU
///
/// 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 FPU_TAKEN {
None
} else {
FPU_TAKEN = true;
Some(INSTANCE)
}
})
}
/// Release exclusive access to FPU
///
/// 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 FPU_TAKEN && inst.addr == INSTANCE.addr {
FPU_TAKEN = false;
} else {
panic!("Released a peripheral which was not taken");
}
});
}
}
/// Raw pointer to FPU
///
/// 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 FPU: *const RegisterBlock = 0xe000ef34 as *const _;