c6bdf8b8c0
* Add efuse field tables from IDF * Add efuse fields constants generator * Fix MAC field in efuse tables * Add common efuse field impl * Add efuse fields support for chips * Add efuse changes to changelog
75 lines
1.9 KiB
Rust
75 lines
1.9 KiB
Rust
//! Reading of eFuses
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use crate::peripherals::EFUSE;
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pub use crate::soc::efuse_field::*;
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pub struct Efuse;
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impl Efuse {
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/// Reads chip's MAC address from the eFuse storage.
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///
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/// # Example
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///
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/// ```
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/// let mac_address = Efuse::get_mac_address();
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/// writeln!(
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/// serial_tx,
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/// "MAC: {:#X}:{:#X}:{:#X}:{:#X}:{:#X}:{:#X}",
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/// mac_address[0],
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/// mac_address[1],
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/// mac_address[2],
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/// mac_address[3],
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/// mac_address[4],
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/// mac_address[5]
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/// );
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/// ```
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pub fn get_mac_address() -> [u8; 6] {
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Self::read_field_be(MAC_FACTORY)
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}
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/// Get status of SPI boot encryption.
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pub fn get_flash_encryption() -> bool {
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(Self::read_field_le::<u8>(SPI_BOOT_CRYPT_CNT).count_ones() % 2) != 0
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}
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/// Get the multiplier for the timeout value of the RWDT STAGE 0 register.
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pub fn get_rwdt_multiplier() -> u8 {
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Self::read_field_le::<u8>(WDT_DELAY_SEL)
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}
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}
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#[derive(Copy, Clone)]
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pub(crate) enum EfuseBlock {
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Block0,
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Block1,
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Block2,
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Block3,
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Block4,
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Block5,
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Block6,
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Block7,
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Block8,
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Block9,
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Block10,
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}
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impl EfuseBlock {
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pub(crate) fn address(self) -> *const u32 {
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use EfuseBlock::*;
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let efuse = unsafe { &*EFUSE::ptr() };
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match self {
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Block0 => efuse.rd_wr_dis.as_ptr(),
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Block1 => efuse.rd_mac_spi_sys_0.as_ptr(),
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Block2 => efuse.rd_sys_part1_data0.as_ptr(),
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Block3 => efuse.rd_usr_data0.as_ptr(),
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Block4 => efuse.rd_key0_data0.as_ptr(),
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Block5 => efuse.rd_key1_data0.as_ptr(),
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Block6 => efuse.rd_key2_data0.as_ptr(),
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Block7 => efuse.rd_key3_data0.as_ptr(),
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Block8 => efuse.rd_key4_data0.as_ptr(),
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Block9 => efuse.rd_key5_data0.as_ptr(),
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Block10 => efuse.rd_sys_part2_data0.as_ptr(),
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}
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}
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}
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