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

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For now it still relies on Aml::to_aml_bytes() for the children as not
all structures have been ported.

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 d92489e0a4
commit 4f496e39a1
1 changed files with 11 additions and 16 deletions
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27
acpi_tables/src/aml.rs
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@ -303,36 +303,31 @@ pub struct ResourceTemplate<'a> {
} }
impl<'a> Aml for ResourceTemplate<'a> { impl<'a> Aml for ResourceTemplate<'a> {
fn to_aml_bytes(&self) -> Vec<u8> { fn append_aml_bytes(&self, bytes: &mut Vec<u8>) {
let mut bytes = Vec::new(); let mut tmp = Vec::new();
// Add buffer data // Add buffer data
for child in &self.children { for child in &self.children {
bytes.append(&mut child.to_aml_bytes()); tmp.append(&mut child.to_aml_bytes());
} }
// Mark with end and mark checksum as as always valid // Mark with end and mark checksum as as always valid
bytes.push(0x79); /* EndTag */ tmp.push(0x79); /* EndTag */
bytes.push(0); /* zero checksum byte */ tmp.push(0); /* zero checksum byte */
// Buffer length is an encoded integer including buffer data // Buffer length is an encoded integer including buffer data
// and EndTag and checksum byte // and EndTag and checksum byte
let mut buffer_length = bytes.len().to_aml_bytes(); let mut buffer_length = tmp.len().to_aml_bytes();
buffer_length.reverse(); buffer_length.reverse();
for byte in buffer_length { for byte in buffer_length {
bytes.insert(0, byte); tmp.insert(0, byte);
} }
// PkgLength is everything else // PkgLength is everything else
let mut pkg_length = create_pkg_length(&bytes, true); let mut pkg_length = create_pkg_length(&tmp, true);
pkg_length.reverse();
for byte in pkg_length {
bytes.insert(0, byte);
}
bytes.insert(0, 0x11); /* BufferOp */ bytes.push(0x11); /* BufferOp */
bytes.append(&mut pkg_length);
bytes bytes.append(&mut tmp);
} }
} }