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https://github.com/brain-hackers/u-boot-brain
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0e5a0a00d6
More complex device properties can be provided to drivers via a device-specific data (_DSD) object. To create this we need to build it up in a separate data structure and then generate the ACPI code, due to its recursive nature. Add an implementation of 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>
386 lines
9.9 KiB
C
386 lines
9.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Tests for ACPI code generation via a device-property table
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*
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* Copyright 2019 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <uuid.h>
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#include <acpi/acpigen.h>
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#include <acpi/acpi_dp.h>
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#include <asm/unaligned.h>
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#include <dm/acpi.h>
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#include <dm/test.h>
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#include <test/ut.h>
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#include "acpi.h"
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/* Maximum size of the ACPI context needed for most tests */
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#define ACPI_CONTEXT_SIZE 500
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#define TEST_INT8 0x7d
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#define TEST_INT16 0x2345
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#define TEST_INT32 0x12345678
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#define TEST_INT64 0x4567890123456
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#define TEST_STR "testing acpi strings"
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#define TEST_REF "\\SB.I2C0.TPM2"
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#define EXPECT_REF "SB__I2C0TPM2"
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static int alloc_context(struct acpi_ctx **ctxp)
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{
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return acpi_test_alloc_context_size(ctxp, ACPI_CONTEXT_SIZE);
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return 0;
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}
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static void free_context(struct acpi_ctx **ctxp)
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{
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free(*ctxp);
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*ctxp = NULL;
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}
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/* Test emitting an empty table */
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static int dm_test_acpi_dp_new_table(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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struct acpi_dp *dp;
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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dp = acpi_dp_new_table("FRED");
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ut_assertnonnull(dp);
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ptr = acpigen_get_current(ctx);
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ut_assertok(acpi_dp_write(ctx, dp));
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ut_asserteq(10, acpigen_get_current(ctx) - ptr);
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ut_asserteq(NAME_OP, *(u8 *)ptr);
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ut_asserteq_strn("FRED", (char *)ptr + 1);
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ut_asserteq(PACKAGE_OP, ptr[5]);
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ut_asserteq(4, acpi_test_get_length(ptr + 6));
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ut_asserteq(0, ptr[9]);
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free_context(&ctx);
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return 0;
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}
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DM_TEST(dm_test_acpi_dp_new_table, 0);
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/* Test emitting an integer */
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static int dm_test_acpi_dp_int(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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char uuid[UUID_STR_LEN + 1];
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struct acpi_dp *dp;
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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dp = acpi_dp_new_table("FRED");
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ut_assertnonnull(dp);
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ut_assertnonnull(acpi_dp_add_integer(dp, "MARY", TEST_INT32));
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ptr = acpigen_get_current(ctx);
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ut_assertok(acpi_dp_write(ctx, dp));
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ut_asserteq(54, acpigen_get_current(ctx) - ptr);
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ut_asserteq(NAME_OP, *(u8 *)ptr);
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ut_asserteq_strn("FRED", (char *)ptr + 1);
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ut_asserteq(PACKAGE_OP, ptr[5]);
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ut_asserteq(48, acpi_test_get_length(ptr + 6));
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ut_asserteq(2, ptr[9]);
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/* UUID */
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ut_asserteq(BUFFER_OP, ptr[10]);
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ut_asserteq(22, acpi_test_get_length(ptr + 11));
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ut_asserteq(WORD_PREFIX, ptr[14]);
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ut_asserteq(16, get_unaligned((u16 *)(ptr + 15)));
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uuid_bin_to_str(ptr + 17, uuid, 1);
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ut_asserteq_str(ACPI_DP_UUID, uuid);
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/* Container package */
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ut_asserteq(PACKAGE_OP, ptr[33]);
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ut_asserteq(20, acpi_test_get_length(ptr + 34));
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ut_asserteq(1, ptr[37]);
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/* Package with name and (integer) value */
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ut_asserteq(PACKAGE_OP, ptr[38]);
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ut_asserteq(15, acpi_test_get_length(ptr + 39));
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ut_asserteq(2, ptr[42]);
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ut_asserteq(STRING_PREFIX, ptr[43]);
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ut_asserteq_str("MARY", (char *)ptr + 44);
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ut_asserteq(DWORD_PREFIX, ptr[49]);
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ut_asserteq(TEST_INT32, get_unaligned((u32 *)(ptr + 50)));
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free_context(&ctx);
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return 0;
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}
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DM_TEST(dm_test_acpi_dp_int, 0);
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/* Test emitting a 64-bit integer */
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static int dm_test_acpi_dp_int64(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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struct acpi_dp *dp;
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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dp = acpi_dp_new_table("FRED");
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ut_assertnonnull(dp);
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ut_assertnonnull(acpi_dp_add_integer(dp, "MARY", TEST_INT64));
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ptr = acpigen_get_current(ctx);
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ut_assertok(acpi_dp_write(ctx, dp));
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ut_asserteq(58, acpigen_get_current(ctx) - ptr);
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ut_asserteq(QWORD_PREFIX, ptr[49]);
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ut_asserteq_64(TEST_INT64, get_unaligned((u64 *)(ptr + 50)));
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free_context(&ctx);
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return 0;
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}
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DM_TEST(dm_test_acpi_dp_int64, 0);
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/* Test emitting a 16-bit integer */
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static int dm_test_acpi_dp_int16(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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struct acpi_dp *dp;
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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dp = acpi_dp_new_table("FRED");
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ut_assertnonnull(dp);
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ut_assertnonnull(acpi_dp_add_integer(dp, "MARY", TEST_INT16));
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ptr = acpigen_get_current(ctx);
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ut_assertok(acpi_dp_write(ctx, dp));
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ut_asserteq(52, acpigen_get_current(ctx) - ptr);
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ut_asserteq(WORD_PREFIX, ptr[49]);
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ut_asserteq(TEST_INT16, get_unaligned((u16 *)(ptr + 50)));
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free_context(&ctx);
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return 0;
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}
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DM_TEST(dm_test_acpi_dp_int16, 0);
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/* Test emitting a 8-bit integer */
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static int dm_test_acpi_dp_int8(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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struct acpi_dp *dp;
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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dp = acpi_dp_new_table("FRED");
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ut_assertnonnull(dp);
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ut_assertnonnull(acpi_dp_add_integer(dp, "MARY", TEST_INT8));
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ptr = acpigen_get_current(ctx);
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ut_assertok(acpi_dp_write(ctx, dp));
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ut_asserteq(51, acpigen_get_current(ctx) - ptr);
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ut_asserteq(BYTE_PREFIX, ptr[49]);
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ut_asserteq(TEST_INT8, ptr[50]);
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free_context(&ctx);
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return 0;
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}
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DM_TEST(dm_test_acpi_dp_int8, 0);
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/* Test emitting multiple values */
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static int dm_test_acpi_dp_multiple(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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struct acpi_dp *dp;
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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dp = acpi_dp_new_table("FRED");
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ut_assertnonnull(dp);
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ut_assertnonnull(acpi_dp_add_integer(dp, "int16", TEST_INT16));
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ut_assertnonnull(acpi_dp_add_string(dp, "str", TEST_STR));
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ut_assertnonnull(acpi_dp_add_reference(dp, "ref", TEST_REF));
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ptr = acpigen_get_current(ctx);
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ut_assertok(acpi_dp_write(ctx, dp));
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ut_asserteq(110, acpigen_get_current(ctx) - ptr);
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ut_asserteq(WORD_PREFIX, ptr[0x32]);
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ut_asserteq(TEST_INT16, get_unaligned((u16 *)(ptr + 0x33)));
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ut_asserteq(STRING_PREFIX, ptr[0x3f]);
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ut_asserteq_str(TEST_STR, (char *)ptr + 0x40);
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ut_asserteq(ROOT_PREFIX, ptr[0x5f]);
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ut_asserteq(MULTI_NAME_PREFIX, ptr[0x60]);
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ut_asserteq(3, ptr[0x61]);
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ut_asserteq_strn(EXPECT_REF, (char *)ptr + 0x62);
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free_context(&ctx);
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return 0;
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}
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DM_TEST(dm_test_acpi_dp_multiple, 0);
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/* Test emitting an array */
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static int dm_test_acpi_dp_array(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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struct acpi_dp *dp;
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u64 speed[4];
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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dp = acpi_dp_new_table("FRED");
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ut_assertnonnull(dp);
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speed[0] = TEST_INT8;
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speed[1] = TEST_INT16;
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speed[2] = TEST_INT32;
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speed[3] = TEST_INT64;
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ut_assertnonnull(acpi_dp_add_integer_array(dp, "speeds", speed,
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ARRAY_SIZE(speed)));
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ptr = acpigen_get_current(ctx);
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ut_assertok(acpi_dp_write(ctx, dp));
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ut_asserteq(75, acpigen_get_current(ctx) - ptr);
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ut_asserteq(BYTE_PREFIX, ptr[0x38]);
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ut_asserteq(TEST_INT8, ptr[0x39]);
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ut_asserteq(WORD_PREFIX, ptr[0x3a]);
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ut_asserteq(TEST_INT16, get_unaligned((u16 *)(ptr + 0x3b)));
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ut_asserteq(DWORD_PREFIX, ptr[0x3d]);
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ut_asserteq(TEST_INT32, get_unaligned((u32 *)(ptr + 0x3e)));
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ut_asserteq(QWORD_PREFIX, ptr[0x42]);
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ut_asserteq_64(TEST_INT64, get_unaligned((u64 *)(ptr + 0x43)));
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free_context(&ctx);
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return 0;
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}
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DM_TEST(dm_test_acpi_dp_array, 0);
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/* Test emitting a child */
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static int dm_test_acpi_dp_child(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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struct acpi_dp *dp, *child1, *child2;
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char uuid[UUID_STR_LEN + 1];
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u8 *ptr, *pptr;
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int i;
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ut_assertok(alloc_context(&ctx));
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child1 = acpi_dp_new_table("child");
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ut_assertnonnull(child1);
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ut_assertnonnull(acpi_dp_add_integer(child1, "height", TEST_INT16));
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child2 = acpi_dp_new_table("child");
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ut_assertnonnull(child2);
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ut_assertnonnull(acpi_dp_add_integer(child2, "age", TEST_INT8));
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dp = acpi_dp_new_table("FRED");
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ut_assertnonnull(dp);
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ut_assertnonnull(acpi_dp_add_child(dp, "anna", child1));
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ut_assertnonnull(acpi_dp_add_child(dp, "john", child2));
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ptr = acpigen_get_current(ctx);
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ut_assertok(acpi_dp_write(ctx, dp));
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ut_asserteq(178, acpigen_get_current(ctx) - ptr);
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/* UUID for child extension using Hierarchical Data Extension UUID */
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ut_asserteq(BUFFER_OP, ptr[10]);
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ut_asserteq(22, acpi_test_get_length(ptr + 11));
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ut_asserteq(WORD_PREFIX, ptr[14]);
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ut_asserteq(16, get_unaligned((u16 *)(ptr + 15)));
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uuid_bin_to_str(ptr + 17, uuid, 1);
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ut_asserteq_str(ACPI_DP_CHILD_UUID, uuid);
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/* Package with two children */
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ut_asserteq(PACKAGE_OP, ptr[0x21]);
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ut_asserteq(0x28, acpi_test_get_length(ptr + 0x22));
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ut_asserteq(2, ptr[0x25]);
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/* First we expect the two children as string/value */
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pptr = ptr + 0x26;
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for (i = 0; i < 2; i++) {
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ut_asserteq(PACKAGE_OP, pptr[0]);
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ut_asserteq(0x11, acpi_test_get_length(pptr + 1));
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ut_asserteq(2, pptr[4]);
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ut_asserteq(STRING_PREFIX, pptr[5]);
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ut_asserteq_str(i ? "john" : "anna", (char *)pptr + 6);
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ut_asserteq(STRING_PREFIX, pptr[11]);
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ut_asserteq_str("child", (char *)pptr + 12);
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pptr += 0x12;
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}
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/* Write the two children */
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ut_asserteq(0x4a, pptr - ptr);
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for (i = 0; i < 2; i++) {
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const char *prop = i ? "age" : "height";
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const int datalen = i ? 1 : 2;
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int len = strlen(prop) + 1;
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ut_asserteq(NAME_OP, pptr[0]);
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ut_asserteq_strn("chil", (char *)pptr + 1);
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ut_asserteq(PACKAGE_OP, pptr[5]);
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ut_asserteq(0x27 + len + datalen, acpi_test_get_length(pptr + 6));
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ut_asserteq(2, pptr[9]);
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/* UUID */
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ut_asserteq(BUFFER_OP, pptr[10]);
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ut_asserteq(22, acpi_test_get_length(pptr + 11));
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ut_asserteq(WORD_PREFIX, pptr[14]);
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ut_asserteq(16, get_unaligned((u16 *)(pptr + 15)));
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uuid_bin_to_str(pptr + 17, uuid, 1);
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ut_asserteq_str(ACPI_DP_UUID, uuid);
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pptr += 33;
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/* Containing package */
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ut_asserteq(i ? 0xa1 : 0x6b, pptr - ptr);
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ut_asserteq(PACKAGE_OP, pptr[0]);
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ut_asserteq(0xb + len + datalen, acpi_test_get_length(pptr + 1));
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ut_asserteq(1, pptr[4]);
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/* Package containing the property-name string and the value */
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pptr += 5;
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ut_asserteq(i ? 0xa6 : 0x70, pptr - ptr);
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ut_asserteq(PACKAGE_OP, pptr[0]);
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ut_asserteq(6 + len + datalen, acpi_test_get_length(pptr + 1));
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ut_asserteq(2, pptr[4]);
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ut_asserteq(STRING_PREFIX, pptr[5]);
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ut_asserteq_str(i ? "age" : "height", (char *)pptr + 6);
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pptr += 6 + len;
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if (i) {
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ut_asserteq(BYTE_PREFIX, pptr[0]);
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ut_asserteq(TEST_INT8, pptr[1]);
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} else {
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ut_asserteq(WORD_PREFIX, pptr[0]);
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ut_asserteq(TEST_INT16,
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get_unaligned((u16 *)(pptr + 1)));
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}
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pptr += 1 + datalen;
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}
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ut_asserteq(178, pptr - ptr);
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free_context(&ctx);
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return 0;
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}
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DM_TEST(dm_test_acpi_dp_child, 0);
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