mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 11:00:15 +00:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
187 lines
3.7 KiB
C
187 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* efi_selftest_pos
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*
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* Copyright (c) 2018 Heinrich Schuchardt <xypron.glpk@gmx.de>
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*
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* Test the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.
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*
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* The following services are tested:
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* OutputString, TestString, SetAttribute.
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*/
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#include <efi_selftest.h>
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#include <linux/libfdt.h>
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static struct efi_boot_services *boottime;
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static const char *fdt;
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/* This should be sufficent for */
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#define BUFFERSIZE 0x100000
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static efi_guid_t fdt_guid = EFI_FDT_GUID;
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/*
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* Convert FDT value to host endianness.
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*
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* @val FDT value
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* @return converted value
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*/
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static uint32_t f2h(fdt32_t val)
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{
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char *buf = (char *)&val;
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char i;
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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/* Swap the bytes */
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i = buf[0]; buf[0] = buf[3]; buf[3] = i;
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i = buf[1]; buf[1] = buf[2]; buf[2] = i;
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#endif
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return *(uint32_t *)buf;
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}
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/*
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* Return the value of a property of the FDT root node.
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*
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* @name name of the property
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* @return value of the property
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*/
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static char *get_property(const u16 *property)
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{
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struct fdt_header *header = (struct fdt_header *)fdt;
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const fdt32_t *pos;
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const char *strings;
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if (!header)
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return NULL;
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if (f2h(header->magic) != FDT_MAGIC) {
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printf("Wrong magic\n");
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return NULL;
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}
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pos = (fdt32_t *)(fdt + f2h(header->off_dt_struct));
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strings = fdt + f2h(header->off_dt_strings);
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for (;;) {
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switch (f2h(pos[0])) {
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case FDT_BEGIN_NODE: {
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char *c = (char *)&pos[1];
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size_t i;
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for (i = 0; c[i]; ++i)
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;
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pos = &pos[2 + (i >> 2)];
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break;
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}
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case FDT_PROP: {
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struct fdt_property *prop = (struct fdt_property *)pos;
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const char *label = &strings[f2h(prop->nameoff)];
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efi_status_t ret;
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/* Check if this is the property to be returned */
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if (!efi_st_strcmp_16_8(property, label)) {
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char *str;
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efi_uintn_t len = f2h(prop->len);
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if (!len)
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return NULL;
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/*
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* The string might not be 0 terminated.
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* It is safer to make a copy.
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*/
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ret = boottime->allocate_pool(
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EFI_LOADER_DATA, len + 1,
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(void **)&str);
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if (ret != EFI_SUCCESS) {
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efi_st_printf("AllocatePool failed\n");
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return NULL;
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}
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boottime->copy_mem(str, &pos[3], len);
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str[len] = 0;
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return str;
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}
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pos = &pos[3 + ((f2h(prop->len) + 3) >> 2)];
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break;
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}
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case FDT_NOP:
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pos = &pos[1];
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break;
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default:
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return NULL;
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}
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}
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}
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/*
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* Setup unit test.
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*
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* @handle: handle of the loaded image
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* @systable: system table
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* @return: EFI_ST_SUCCESS for success
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*/
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static int setup(const efi_handle_t img_handle,
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const struct efi_system_table *systable)
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{
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efi_uintn_t i;
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boottime = systable->boottime;
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/* Find configuration tables */
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for (i = 0; i < systable->nr_tables; ++i) {
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if (!efi_st_memcmp(&systable->tables[i].guid, &fdt_guid,
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sizeof(efi_guid_t)))
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fdt = systable->tables[i].table;
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}
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if (!fdt) {
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efi_st_error("Missing device tree\n");
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return EFI_ST_FAILURE;
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}
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return EFI_ST_SUCCESS;
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}
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/*
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* Execute unit test.
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*
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* @return: EFI_ST_SUCCESS for success
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*/
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static int execute(void)
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{
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char *str;
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efi_status_t ret;
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str = get_property(L"compatible");
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if (str) {
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efi_st_printf("compatible: %s\n", str);
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ret = boottime->free_pool(str);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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} else {
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efi_st_printf("Missing property 'compatible'\n");
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return EFI_ST_FAILURE;
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}
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str = get_property(L"serial-number");
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if (str) {
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efi_st_printf("serial-number: %s\n", str);
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ret = boottime->free_pool(str);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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}
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return EFI_ST_SUCCESS;
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}
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EFI_UNIT_TEST(fdt) = {
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.name = "device tree",
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.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
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.setup = setup,
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.execute = execute,
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.on_request = true,
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};
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