From 29df845204e6b67583491b3c9883432c3a74d923 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 7 Jul 2020 13:11:55 -0600 Subject: acpi: Support writing a UUID ACPI supports writing a UUID in a special format. Add a function to handle this. Signed-off-by: Simon Glass Reviewed-by: Wolfgang Wallner Reviewed-by: Bin Meng --- test/dm/acpigen.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'test') diff --git a/test/dm/acpigen.c b/test/dm/acpigen.c index adfcf88..1cdbcf2 100644 --- a/test/dm/acpigen.c +++ b/test/dm/acpigen.c @@ -598,3 +598,36 @@ static int dm_test_acpi_name(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_acpi_name, 0); + +/* Test writing a UUID */ +static int dm_test_acpi_uuid(struct unit_test_state *uts) +{ + struct acpi_ctx *ctx; + u8 *ptr; + + ut_assertok(alloc_context(&ctx)); + + ptr = acpigen_get_current(ctx); + + ut_assertok(acpigen_write_uuid(ctx, + "dbb8e3e6-5886-4ba6-8795-1319f52a966b")); + ut_asserteq(23, acpigen_get_current(ctx) - ptr); + ut_asserteq(BUFFER_OP, ptr[0]); + ut_asserteq(22, get_length(ptr + 1)); + ut_asserteq(0xdbb8e3e6, get_unaligned((u32 *)(ptr + 7))); + ut_asserteq(0x5886, get_unaligned((u16 *)(ptr + 11))); + ut_asserteq(0x4ba6, get_unaligned((u16 *)(ptr + 13))); + ut_asserteq(0x9587, get_unaligned((u16 *)(ptr + 15))); + ut_asserteq(0x2af51913, get_unaligned((u32 *)(ptr + 17))); + ut_asserteq(0x6b96, get_unaligned((u16 *)(ptr + 21))); + + /* Try a bad UUID */ + ut_asserteq(-EINVAL, + acpigen_write_uuid(ctx, + "dbb8e3e6-5886-4ba6x8795-1319f52a966b")); + + free_context(&ctx); + + return 0; +} +DM_TEST(dm_test_acpi_uuid, 0); -- cgit v1.1