From f7b23c80e4b5975d1beecbe0b39380cde5dd2ab2 Mon Sep 17 00:00:00 2001 From: Tarun Tuli Date: Thu, 30 Mar 2023 12:46:38 +0000 Subject: mb/google/brya/acpi: LTOB - Add support for a 8 byte integer to buffer This function adds support to convert a integer into a 8 byte buffer TEST=verified returned buffer is as expected using acpiexec BUG=b:271938907 Signed-off-by: Tarun Tuli Change-Id: I89eb50f1452657c26b97eb5609ed956fa8ee8117 Reviewed-on: https://review.coreboot.org/c/coreboot/+/73898 Tested-by: build bot (Jenkins) Reviewed-by: Eric Lai --- src/mainboard/google/brya/acpi/utility.asl | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'src/mainboard') diff --git a/src/mainboard/google/brya/acpi/utility.asl b/src/mainboard/google/brya/acpi/utility.asl index 9cdfb49c41..49f3dca8e9 100644 --- a/src/mainboard/google/brya/acpi/utility.asl +++ b/src/mainboard/google/brya/acpi/utility.asl @@ -37,3 +37,18 @@ Method (ITOB, 1) Local0[3] = (Arg0 >> 24) & 0xFF Return (Local0) } + +/* Convert from 64-bit integer to 8-byte buffer (little-endian) */ +Method (LTOB, 1) +{ + Local0 = Buffer(8) { 0, 0, 0, 0, 0, 0, 0, 0 } + Local0[0] = Arg0 & 0xFF + Local0[1] = (Arg0 >> 8) & 0xFF + Local0[2] = (Arg0 >> 16) & 0xFF + Local0[3] = (Arg0 >> 24) & 0xFF + Local0[4] = (Arg0 >> 32) & 0xFF + Local0[5] = (Arg0 >> 40) & 0xFF + Local0[6] = (Arg0 >> 48) & 0xFF + Local0[7] = (Arg0 >> 56) & 0xFF + Return (Local0) +} -- cgit v1.2.3