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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
#[macro_export]
macro_rules! pci_struct {
(
$(
$(#[$attr:meta])*
$vis:vis struct $name:ident<$lifetime:lifetime> $(: $length:literal)? {
$(
$(#[$field_attr:meta])*
$field_name:ident @ $field_offset:literal :
$($field_type:ident)::+$(<$($field_generics:tt),+ $(,)?>)?
),* $(,)?
}
)*
) => {
$(
$(#[$attr])*
#[derive(Clone, Copy)]
$vis struct $name<$lifetime> {
subregion: $crate::regions::PciSubregion<$lifetime>,
}
impl<'a> $crate::regions::BackedByPciSubregion<'a> for $name<'a> {
fn backed_by(as_subregion: impl $crate::regions::AsPciSubregion<'a>) -> Self {
let subregion = $crate::regions::AsPciSubregion::subregion(&as_subregion, ..$($length)?);
$name { subregion }
}
}
impl<'a> $crate::regions::AsPciSubregion<'a> for $name<'a> {
fn as_subregion(&self) -> $crate::regions::PciSubregion<'a> {
self.subregion
}
}
$crate::_pci_struct_impl! {
impl $name<$lifetime> {
$(
$(#[$field_attr])*
$field_name @ $field_offset :
$($field_type)::+$(<$($field_generics),+>)?
),*
}
}
)*
};
}
#[doc(hidden)]
#[macro_export]
macro_rules! _pci_struct_impl {
(
impl $name:ident<$lifetime:lifetime> {
$(
$(#[$field_attr:meta])*
$field_name:ident @ $field_offset:literal :
$($field_type:ident)::+$(<$($field_generics:tt),+ $(,)?>)?
),* $(,)?
}
) => {
impl ::std::fmt::Debug for $name<'_> {
fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
let mut debug_struct = f.debug_struct(::std::stringify!($name));
$( debug_struct.field(::std::stringify!($field_name), &self.$field_name()); )*
debug_struct.finish()
}
}
impl<$lifetime> $name<$lifetime> {
$(
$(#[$field_attr])*
pub fn $field_name(&self) -> $($field_type)::+$(<$($field_generics),+>)? {
let subregion = $crate::regions::AsPciSubregion::subregion(self, $field_offset..);
$crate::regions::BackedByPciSubregion::backed_by(subregion)
}
)*
}
};
}