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acpi_tables: aml: Implement Aml::append_aml_bytes() for Field

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Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-11-03 14:29:05 +00:00
parent bfd3deac7c
commit 311dd7be50
1 changed files with 13 additions and 16 deletions
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29
acpi_tables/src/aml.rs
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@ -699,35 +699,32 @@ impl Field {
}
impl Aml for Field {
fn to_aml_bytes(&self) -> Vec<u8> {
let mut bytes = Vec::new();
bytes.append(&mut self.path.to_aml_bytes());
fn append_aml_bytes(&self, bytes: &mut Vec<u8>) {
let mut tmp = Vec::new();
tmp.append(&mut self.path.to_aml_bytes());
let flags: u8 = self.access_type as u8 | (self.update_rule as u8) << 5;
bytes.push(flags);
tmp.push(flags);
for field in self.fields.iter() {
match field {
FieldEntry::Named(name, length) => {
bytes.extend_from_slice(name);
bytes.append(&mut create_pkg_length(&vec![0; *length], false));
tmp.extend_from_slice(name);
tmp.append(&mut create_pkg_length(&vec![0; *length], false));
}
FieldEntry::Reserved(length) => {
bytes.push(0x0);
bytes.append(&mut create_pkg_length(&vec![0; *length], false));
tmp.push(0x0);
tmp.append(&mut create_pkg_length(&vec![0; *length], false));
}
}
}
let mut pkg_length = create_pkg_length(&bytes, true);
pkg_length.reverse();
for byte in pkg_length {
bytes.insert(0, byte);
}
let mut pkg_length = create_pkg_length(&tmp, true);
bytes.insert(0, 0x81); /* FieldOp */
bytes.insert(0, 0x5b); /* ExtOpPrefix */
bytes
bytes.push(0x5b); /* ExtOpPrefix */
bytes.push(0x81); /* FieldOp */
bytes.append(&mut pkg_length);
bytes.append(&mut tmp)
}
}