libcpuid_dump 0.1.2

This library is part of https://github.com/Umio-Yasuno/cpuid_dump_rs
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68

use crate::{cpuid, CpuidResult};

/// Processor name
pub struct ProcName;

impl ProcName {
    pub(crate) fn check_reg(reg: u32) -> [u8; 4] {
        let mut bytes = reg.to_le_bytes();

        for byte in bytes.iter_mut() {
            /* replace from <Control> to \u0020 (<Space>) */
            if char::from(*byte).is_control() {
                *byte = 0x20
            }
        }

        bytes
    }

    pub fn dec_cpuid(cpuid: &CpuidResult) -> [u8; 16] {
        let mut total = [0u8; 16];

        for (i, reg) in [cpuid.eax, cpuid.ebx, cpuid.ecx, cpuid.edx].iter().enumerate() {
            total[(i*4)..(i*4+4)].copy_from_slice(&Self::check_reg(*reg))
        }

        total
    }

    fn set_cpuid() -> [CpuidResult; 3] {
        [
            cpuid!(0x8000_0002, 0x0),
            cpuid!(0x8000_0003, 0x0),
            cpuid!(0x8000_0004, 0x0),
        ]
    }
    
    fn from_cpuid_array(array: [CpuidResult; 3]) -> String {
        /* 4 (0x8000_0002 .. 0x8000_0004) * u32 ([u8; 4]) * 4 (E{A,B,C,D}X) */
        let name: Vec<u8> = array.iter().flat_map(Self::dec_cpuid).collect();

        String::from_utf8(name).unwrap()
    }
    
    pub fn get_name() -> String {
        let cpuid = Self::set_cpuid();

        Self::from_cpuid_array(cpuid)
    }
    
    pub fn get_trim_name() -> String {
        Self::get_name()
            .trim()
            .to_string()
    }
}

#[test]
fn test_proc_name() {
    let cpuid = [
        CpuidResult { eax: 0x20444D41, ebx: 0x657A7952, ecx: 0x2035206E, edx: 0x30303635 },
        CpuidResult { eax: 0x69772047, ebx: 0x52206874, ecx: 0x6F656461, edx: 0x7247206E },
        CpuidResult { eax: 0x69687061, ebx: 0x20207363, ecx: 0x20202020, edx: 0x00202020 },
    ];
    let name = "AMD Ryzen 5 5600G with Radeon Graphics          ".to_string();

    assert_eq!(name, ProcName::from_cpuid_array(cpuid));
}