esp-hal 1.1.0-rc.0

Bare-metal HAL for Espressif devices
Documentation 
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//! # SOC (System-on-Chip) module (ESP32-C5)
//!
//! ## Overview
//!
//! The `SOC` module provides access, functions and structures that are useful
//! for interacting with various system-related peripherals on `ESP32-C5` chip.
//!
//! Also few constants are defined in this module for `ESP32-C5` chip:

crate::unstable_module! {
    pub mod clocks;
}
pub mod gpio;
pub(crate) mod regi2c;

pub(crate) use esp32c5 as pac;

#[cfg_attr(not(feature = "unstable"), allow(unused))]
pub(crate) mod constants {}

pub(crate) fn pre_init() {
    // Reset TEE security modes. This allows unrestricted access to TEE masters, including DMA.
    // FIXME: this is a temporary workaround until we have a proper solution for TEE security modes.
    for m in crate::peripherals::TEE::regs().m_mode_ctrl_iter() {
        m.reset();
    }
    // this is hacky, but for some reason we must reset the output enable register manually
    crate::peripherals::GPIO::regs().enable().reset();
}

/// Write back a specific range of data in the cache.
#[doc(hidden)]
#[unsafe(link_section = ".rwtext")]
pub unsafe fn cache_writeback_addr(addr: u32, size: u32) {
    unsafe extern "C" {
        fn Cache_WriteBack_Addr(addr: u32, size: u32);
    }

    unsafe {
        Cache_WriteBack_Addr(addr, size);
    }
}

/// Invalidate a specific range of addresses in the cache.
#[doc(hidden)]
#[unsafe(link_section = ".rwtext")]
pub unsafe fn cache_invalidate_addr(addr: u32, size: u32) {
    unsafe extern "C" {
        fn Cache_Invalidate_Addr(addr: u32, size: u32);
    }
    unsafe {
        Cache_Invalidate_Addr(addr, size);
    }
}

/// Get the size of a cache line in the DCache.
#[doc(hidden)]
#[unsafe(link_section = ".rwtext")]
pub unsafe fn cache_get_dcache_line_size() -> u32 {
    unsafe extern "C" {
        fn Cache_Get_DCache_Line_Size() -> u32;
    }
    unsafe { Cache_Get_DCache_Line_Size() }
}