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https://github.com/AsahiLinux/u-boot
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ff715c6f4f
Add a function to write an interrupt descriptor to the generated ACPI code. 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>
104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Tests for ACPI code generation
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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 <irq.h>
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#include <malloc.h>
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#include <acpi/acpigen.h>
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#include <acpi/acpi_device.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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/* Maximum size of the ACPI context needed for most tests */
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#define ACPI_CONTEXT_SIZE 150
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static int alloc_context(struct acpi_ctx **ctxp)
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{
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struct acpi_ctx *ctx;
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*ctxp = NULL;
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ctx = malloc(sizeof(*ctx));
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if (!ctx)
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return -ENOMEM;
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ctx->base = malloc(ACPI_CONTEXT_SIZE);
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if (!ctx->base) {
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free(ctx);
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return -ENOMEM;
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}
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ctx->current = ctx->base;
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*ctxp = ctx;
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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)->base);
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free(*ctxp);
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*ctxp = NULL;
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}
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/* Test emitting simple types and acpigen_get_current() */
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static int dm_test_acpi_emit_simple(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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ptr = acpigen_get_current(ctx);
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acpigen_emit_byte(ctx, 0x23);
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ut_asserteq(1, acpigen_get_current(ctx) - ptr);
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ut_asserteq(0x23, *(u8 *)ptr);
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acpigen_emit_word(ctx, 0x1234);
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ut_asserteq(3, acpigen_get_current(ctx) - ptr);
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ut_asserteq(0x1234, get_unaligned((u16 *)(ptr + 1)));
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acpigen_emit_dword(ctx, 0x87654321);
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ut_asserteq(7, acpigen_get_current(ctx) - ptr);
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ut_asserteq(0x87654321, get_unaligned((u32 *)(ptr + 3)));
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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_emit_simple, 0);
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/* Test emitting an interrupt descriptor */
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static int dm_test_acpi_interrupt(struct unit_test_state *uts)
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{
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struct acpi_ctx *ctx;
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struct udevice *dev;
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struct irq irq;
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u8 *ptr;
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ut_assertok(alloc_context(&ctx));
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ptr = acpigen_get_current(ctx);
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ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
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ut_assertok(irq_get_by_index(dev, 0, &irq));
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/* See a-test, property interrupts-extended in the device tree */
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ut_asserteq(3, acpi_device_write_interrupt_irq(ctx, &irq));
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ut_asserteq(9, acpigen_get_current(ctx) - ptr);
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ut_asserteq(ACPI_DESCRIPTOR_INTERRUPT, ptr[0]);
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ut_asserteq(6, get_unaligned((u16 *)(ptr + 1)));
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ut_asserteq(0x19, ptr[3]);
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ut_asserteq(1, ptr[4]);
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ut_asserteq(3, get_unaligned((u32 *)(ptr + 5)));
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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_interrupt, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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