e5cd1bd33e
* Add `esp32p4` feature to `esp-hal-procmacros` * Add `esp32p4` feature to `esp-hal-common` * Create the `esp32p4-hal` package * Add ESP32-P4 to CI workflow * Fix a silly typo :) * Update `CHANGELOG.md`
78 lines
2.2 KiB
Rust
78 lines
2.2 KiB
Rust
use portable_atomic::{AtomicU8, Ordering};
|
|
|
|
pub use self::soc::*;
|
|
|
|
#[cfg_attr(esp32, path = "esp32/mod.rs")]
|
|
#[cfg_attr(esp32c2, path = "esp32c2/mod.rs")]
|
|
#[cfg_attr(esp32c3, path = "esp32c3/mod.rs")]
|
|
#[cfg_attr(esp32c6, path = "esp32c6/mod.rs")]
|
|
#[cfg_attr(esp32h2, path = "esp32h2/mod.rs")]
|
|
#[cfg_attr(esp32p4, path = "esp32p4/mod.rs")]
|
|
#[cfg_attr(esp32s2, path = "esp32s2/mod.rs")]
|
|
#[cfg_attr(esp32s3, path = "esp32s3/mod.rs")]
|
|
mod soc;
|
|
|
|
mod efuse_field;
|
|
|
|
// Indicates the state of setting the mac address
|
|
// 0 -- unset
|
|
// 1 -- in the process of being set
|
|
// 2 -- set
|
|
//
|
|
// Values other than 0 indicate that we cannot attempt setting the mac address
|
|
// again, and values other than 2 indicate that we should read the mac address
|
|
// from eFuse.
|
|
static MAC_OVERRIDE_STATE: AtomicU8 = AtomicU8::new(0);
|
|
static mut MAC_OVERRIDE: [u8; 6] = [0; 6];
|
|
|
|
#[derive(PartialEq, Eq, Copy, Clone, Debug)]
|
|
pub enum SetMacError {
|
|
AlreadySet,
|
|
}
|
|
|
|
impl soc::efuse::Efuse {
|
|
/// Set the base mac address
|
|
///
|
|
/// The new value will be returned by `read_mac_address` instead of the one
|
|
/// hard-coded in eFuse. This does not persist across device resets.
|
|
///
|
|
/// Can only be called once. Returns `Err(`[`SetMacError::AlreadySet`]`)`
|
|
/// otherwise.
|
|
pub fn set_mac_address(mac: [u8; 6]) -> Result<(), SetMacError> {
|
|
if MAC_OVERRIDE_STATE
|
|
.compare_exchange(0, 1, Ordering::Relaxed, Ordering::Relaxed)
|
|
.is_err()
|
|
{
|
|
return Err(SetMacError::AlreadySet);
|
|
}
|
|
|
|
unsafe {
|
|
MAC_OVERRIDE = mac;
|
|
}
|
|
|
|
MAC_OVERRIDE_STATE.store(2, Ordering::Relaxed);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
/// Get base mac address
|
|
///
|
|
/// By default this reads the base mac address from eFuse, but it can be
|
|
/// overriden by `set_mac_address`.
|
|
pub fn get_mac_address() -> [u8; 6] {
|
|
if MAC_OVERRIDE_STATE.load(Ordering::Relaxed) == 2 {
|
|
unsafe { MAC_OVERRIDE }
|
|
} else {
|
|
Self::read_base_mac_address()
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn is_valid_ram_address(address: u32) -> bool {
|
|
if (soc::constants::SOC_DRAM_LOW..=soc::constants::SOC_DRAM_HIGH).contains(&address) {
|
|
true
|
|
} else {
|
|
false
|
|
}
|
|
}
|