Simon Glass | 61cc933 | 2020-07-07 13:11:42 -0600 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Tests for ACPI code generation |
| 4 | * |
| 5 | * Copyright 2019 Google LLC |
| 6 | * Written by Simon Glass <sjg@chromium.org> |
| 7 | */ |
| 8 | |
| 9 | #include <common.h> |
| 10 | #include <dm.h> |
| 11 | #include <malloc.h> |
| 12 | #include <acpi/acpigen.h> |
| 13 | #include <asm/unaligned.h> |
| 14 | #include <dm/acpi.h> |
| 15 | #include <dm/test.h> |
| 16 | #include <test/ut.h> |
| 17 | |
| 18 | /* Maximum size of the ACPI context needed for most tests */ |
| 19 | #define ACPI_CONTEXT_SIZE 150 |
| 20 | |
| 21 | static int alloc_context(struct acpi_ctx **ctxp) |
| 22 | { |
| 23 | struct acpi_ctx *ctx; |
| 24 | |
| 25 | *ctxp = NULL; |
| 26 | ctx = malloc(sizeof(*ctx)); |
| 27 | if (!ctx) |
| 28 | return -ENOMEM; |
| 29 | ctx->base = malloc(ACPI_CONTEXT_SIZE); |
| 30 | if (!ctx->base) { |
| 31 | free(ctx); |
| 32 | return -ENOMEM; |
| 33 | } |
| 34 | ctx->current = ctx->base; |
| 35 | *ctxp = ctx; |
| 36 | |
| 37 | return 0; |
| 38 | } |
| 39 | |
| 40 | static void free_context(struct acpi_ctx **ctxp) |
| 41 | { |
| 42 | free((*ctxp)->base); |
| 43 | free(*ctxp); |
| 44 | *ctxp = NULL; |
| 45 | } |
| 46 | |
| 47 | /* Test emitting simple types and acpigen_get_current() */ |
| 48 | static int dm_test_acpi_emit_simple(struct unit_test_state *uts) |
| 49 | { |
| 50 | struct acpi_ctx *ctx; |
| 51 | u8 *ptr; |
| 52 | |
| 53 | ut_assertok(alloc_context(&ctx)); |
| 54 | |
| 55 | ptr = acpigen_get_current(ctx); |
| 56 | acpigen_emit_byte(ctx, 0x23); |
| 57 | ut_asserteq(1, acpigen_get_current(ctx) - ptr); |
| 58 | ut_asserteq(0x23, *(u8 *)ptr); |
| 59 | |
| 60 | acpigen_emit_word(ctx, 0x1234); |
| 61 | ut_asserteq(3, acpigen_get_current(ctx) - ptr); |
| 62 | ut_asserteq(0x1234, get_unaligned((u16 *)(ptr + 1))); |
| 63 | |
| 64 | acpigen_emit_dword(ctx, 0x87654321); |
| 65 | ut_asserteq(7, acpigen_get_current(ctx) - ptr); |
| 66 | ut_asserteq(0x87654321, get_unaligned((u32 *)(ptr + 3))); |
| 67 | |
| 68 | free_context(&ctx); |
| 69 | |
| 70 | return 0; |
| 71 | } |
| 72 | DM_TEST(dm_test_acpi_emit_simple, 0); |