Function get_reg_field

devices/src/tpm.rs:212–216

Get the value of a particular field in a Register

(regs: &[u32; TPM_CRB_R_MAX], reg: CrbRegister)

// Get the value of a particular field in a Register
const fn get_reg_field(regs: &[u32; TPM_CRB_R_MAX], reg: CrbRegister) -> u32 {
    let (base, offset, len) = get_field(reg);
    let mask = (!(0_u32) >> (32 - len)) << offset;
    (regs[base as usize] & mask) >> offset
}

fn locality_from_addr(addr: u32) -> u8 {
    (addr >> 12) as u8