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acpi_tables: aml: Add support for device and scope

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These both group a set of AML objects together.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2019-10-22 18:01:19 +01:00
parent e1e0ac2ee3
commit 9269e40ba5
1 changed files with 145 additions and 0 deletions
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145
acpi_tables/src/aml.rs
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@ -533,10 +533,155 @@ impl Aml for Interrupt {
}
}
pub struct Device<'a> {
path: Path,
children: Vec<&'a dyn Aml>,
}
impl<'a> Aml for Device<'a> {
fn to_bytes(&self) -> Vec<u8> {
let mut bytes = Vec::new();
bytes.append(&mut self.path.to_bytes());
for child in &self.children {
bytes.append(&mut child.to_bytes());
}
let mut pkg_length = create_pkg_length(&bytes);
pkg_length.reverse();
for byte in pkg_length {
bytes.insert(0, byte);
}
bytes.insert(0, 0x82); /* DeviceOp */
bytes.insert(0, 0x5b); /* ExtOpPrefix */
bytes
}
}
impl<'a> Device<'a> {
pub fn new(path: Path, children: Vec<&'a dyn Aml>) -> Self {
Device { path, children }
}
}
pub struct Scope<'a> {
path: Path,
children: Vec<&'a dyn Aml>,
}
impl<'a> Aml for Scope<'a> {
fn to_bytes(&self) -> Vec<u8> {
let mut bytes = Vec::new();
bytes.append(&mut self.path.to_bytes());
for child in &self.children {
bytes.append(&mut child.to_bytes());
}
let mut pkg_length = create_pkg_length(&bytes);
pkg_length.reverse();
for byte in pkg_length {
bytes.insert(0, byte);
}
bytes.insert(0, 0x10); /* ScopeOp */
bytes
}
}
impl<'a> Scope<'a> {
pub fn new(path: Path, children: Vec<&'a dyn Aml>) -> Self {
Scope { path, children }
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_device() {
/*
Device (_SB.COM1)
{
Name (_HID, EisaId ("PNP0501") /* 16550A-compatible COM Serial Port */) // _HID: Hardware ID
Name (_CRS, ResourceTemplate () // _CRS: Current Resource Settings
{
Interrupt (ResourceConsumer, Edge, ActiveHigh, Exclusive, ,, )
{
0x00000004,
}
IO (Decode16,
0x03F8, // Range Minimum
0x03F8, // Range Maximum
0x00, // Alignment
0x08, // Length
)
}
}
*/
let com1_device = [
0x5B, 0x82, 0x30, 0x2E, 0x5F, 0x53, 0x42, 0x5F, 0x43, 0x4F, 0x4D, 0x31, 0x08, 0x5F,
0x48, 0x49, 0x44, 0x0C, 0x41, 0xD0, 0x05, 0x01, 0x08, 0x5F, 0x43, 0x52, 0x53, 0x11,
0x16, 0x0A, 0x13, 0x89, 0x06, 0x00, 0x03, 0x01, 0x04, 0x00, 0x00, 0x00, 0x47, 0x01,
0xF8, 0x03, 0xF8, 0x03, 0x00, 0x08, 0x79, 0x00,
];
assert_eq!(
Device::new(
"_SB_.COM1".into(),
vec![
&Name::new("_HID".into(), &EISAName::new("PNP0501")),
&Name::new(
"_CRS".into(),
&ResourceTemplate::new(vec![
&Interrupt::new(true, true, false, false, 4),
&IO::new(0x3f8, 0x3f8, 0, 0x8)
])
)
]
)
.to_bytes(),
&com1_device[..]
);
}
#[test]
fn test_scope() {
/*
Scope (_SB.MBRD)
{
Name (_CRS, ResourceTemplate () // _CRS: Current Resource Settings
{
Memory32Fixed (ReadWrite,
0xE8000000, // Address Base
0x10000000, // Address Length
)
})
}
*/
let mbrd_scope = [
0x10, 0x21, 0x2E, 0x5F, 0x53, 0x42, 0x5F, 0x4D, 0x42, 0x52, 0x44, 0x08, 0x5F, 0x43,
0x52, 0x53, 0x11, 0x11, 0x0A, 0x0E, 0x86, 0x09, 0x00, 0x01, 0x00, 0x00, 0x00, 0xE8,
0x00, 0x00, 0x00, 0x10, 0x79, 0x00,
];
assert_eq!(
Scope::new(
"_SB_.MBRD".into(),
vec![&Name::new(
"_CRS".into(),
&ResourceTemplate::new(vec![&Memory32Fixed::new(
true,
0xE800_0000,
0x1000_0000
)])
)]
)
.to_bytes(),
&mbrd_scope[..]
);
}
#[test]
fn test_resource_template() {
/*