984b7fc042
* Create an `soc` module with a submodule for each chip, move `peripherals` in * Move the `cpu_control` module into `soc` * Move the `efuse` module into `soc` * Refactor type definitions from `gpio` module into `soc` * Put all embassy-related files in a common directory * Change visibility of `GpioPin` constructor
63 lines
1.6 KiB
Rust
63 lines
1.6 KiB
Rust
//! Reading of eFuses
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use crate::peripherals::EFUSE;
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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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let efuse = unsafe { &*EFUSE::ptr() };
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let mac_low: u32 = efuse.rd_mac_spi_sys_0.read().mac_0().bits();
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let mac_high: u32 = efuse.rd_mac_spi_sys_1.read().mac_1().bits() as u32;
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let mac_low_bytes = mac_low.to_be_bytes();
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let mac_high_bytes = mac_high.to_be_bytes();
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[
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mac_high_bytes[2],
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mac_high_bytes[3],
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mac_low_bytes[0],
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mac_low_bytes[1],
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mac_low_bytes[2],
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mac_low_bytes[3],
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]
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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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let efuse = unsafe { &*EFUSE::ptr() };
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(efuse
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.rd_repeat_data1
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.read()
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.spi_boot_crypt_cnt()
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.bits()
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.count_ones()
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% 2)
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!= 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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let efuse = unsafe { &*EFUSE::ptr() };
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efuse.rd_repeat_data1.read().wdt_delay_sel().bits()
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}
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}
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