acpi: Support writing a string
ACPI supports storing a simple null-terminated string. Add support for
this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/test/dm/acpigen.c b/test/dm/acpigen.c
index 187001d..c360f55 100644
--- a/test/dm/acpigen.c
+++ b/test/dm/acpigen.c
@@ -23,6 +23,7 @@
#define ACPI_CONTEXT_SIZE 150
#define TEST_STRING "frogmore"
+#define TEST_STRING2 "ranch"
#define TEST_STREAM2 "\xfa\xde"
#define TEST_INT8 0x7d
@@ -477,3 +478,30 @@
return 0;
}
DM_TEST(dm_test_acpi_integer, 0);
+
+/* Test writing a string */
+static int dm_test_acpi_string(struct unit_test_state *uts)
+{
+ struct acpi_ctx *ctx;
+ u8 *ptr;
+
+ ut_assertok(alloc_context(&ctx));
+
+ ptr = acpigen_get_current(ctx);
+
+ acpigen_write_string(ctx, TEST_STRING);
+ acpigen_write_string(ctx, TEST_STRING2);
+
+ ut_asserteq(2 + sizeof(TEST_STRING) + sizeof(TEST_STRING2),
+ acpigen_get_current(ctx) - ptr);
+ ut_asserteq(STRING_PREFIX, ptr[0]);
+ ut_asserteq_str(TEST_STRING, (char *)ptr + 1);
+ ptr += 1 + sizeof(TEST_STRING);
+ ut_asserteq(STRING_PREFIX, ptr[0]);
+ ut_asserteq_str(TEST_STRING2, (char *)ptr + 1);
+
+ free_context(&ctx);
+
+ return 0;
+}
+DM_TEST(dm_test_acpi_string, 0);