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#![allow(non_snake_case, non_upper_case_globals)]
#![allow(non_camel_case_types)]
//! LCD-TFT Controller
//!
//! Used by: stm32f745, stm32f750, stm32f765, stm32f7x6, stm32f7x7, stm32f7x9
#[cfg(not(feature = "nosync"))]
pub use crate::stm32f7::peripherals::ltdc::Instance;
pub use crate::stm32f7::peripherals::ltdc::{RegisterBlock, ResetValues};
pub use crate::stm32f7::peripherals::ltdc::{
AWCR, BCCR, BFCR1, BFCR2, BPCR, CACR1, CACR2, CDSR, CFBAR1, CFBAR2, CFBLNR1, CFBLNR2, CFBLR1,
CFBLR2, CKCR1, CKCR2, CLUTWR1, CLUTWR2, CPSR, CR1, CR2, DCCR1, DCCR2, GCR, ICR, IER, ISR,
LIPCR, PFCR1, PFCR2, SRCR, SSCR, TWCR, WHPCR1, WHPCR2, WVPCR1, WVPCR2,
};
/// Access functions for the LTDC peripheral instance
pub mod LTDC {
use super::ResetValues;
#[cfg(not(feature = "nosync"))]
use super::Instance;
#[cfg(not(feature = "nosync"))]
const INSTANCE: Instance = Instance {
addr: 0x40016800,
_marker: ::core::marker::PhantomData,
};
/// Reset values for each field in LTDC
pub const reset: ResetValues = ResetValues {
SSCR: 0x00000000,
BPCR: 0x00000000,
AWCR: 0x00000000,
TWCR: 0x00000000,
GCR: 0x00002220,
SRCR: 0x00000000,
BCCR: 0x00000000,
IER: 0x00000000,
ISR: 0x00000000,
ICR: 0x00000000,
LIPCR: 0x00000000,
CPSR: 0x00000000,
CDSR: 0x0000000F,
CR1: 0x00000000,
WHPCR1: 0x00000000,
WVPCR1: 0x00000000,
CKCR1: 0x00000000,
PFCR1: 0x00000000,
CACR1: 0x00000000,
DCCR1: 0x00000000,
BFCR1: 0x00000607,
CFBAR1: 0x00000000,
CFBLR1: 0x00000000,
CFBLNR1: 0x00000000,
CLUTWR1: 0x00000000,
CR2: 0x00000000,
WHPCR2: 0x00000000,
WVPCR2: 0x00000000,
CKCR2: 0x00000000,
PFCR2: 0x00000000,
CACR2: 0x00000000,
DCCR2: 0x00000000,
BFCR2: 0x00000607,
CFBAR2: 0x00000000,
CFBLR2: 0x00000000,
CFBLNR2: 0x00000000,
CLUTWR2: 0x00000000,
};
#[cfg(not(feature = "nosync"))]
#[allow(renamed_and_removed_lints)]
#[allow(private_no_mangle_statics)]
#[no_mangle]
static mut LTDC_TAKEN: bool = false;
/// Safe access to LTDC
///
/// 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 LTDC_TAKEN {
None
} else {
LTDC_TAKEN = true;
Some(INSTANCE)
}
})
}
/// Release exclusive access to LTDC
///
/// 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 LTDC_TAKEN && inst.addr == INSTANCE.addr {
LTDC_TAKEN = false;
} else {
panic!("Released a peripheral which was not taken");
}
});
}
/// Unsafely steal LTDC
///
/// 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 {
LTDC_TAKEN = true;
INSTANCE
}
}
/// Raw pointer to LTDC
///
/// 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 LTDC: *const RegisterBlock = 0x40016800 as *const _;