mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-25 04:23:46 +00:00
12cf65a4d1
The comments in the FSP code use a different style from the rest of the x86 code. I am not sure it this is intentional. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: fix 2 comment style issues] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
84 lines
2 KiB
C
84 lines
2 KiB
C
// SPDX-License-Identifier: Intel
|
|
/*
|
|
* Copyright (C) 2013, Intel Corporation
|
|
* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/hob.h>
|
|
|
|
/**
|
|
* Returns the next instance of a HOB type from the starting HOB.
|
|
*
|
|
* @type: HOB type to search
|
|
* @hob_list: A pointer to the HOB list
|
|
*
|
|
* @return A HOB object with matching type; Otherwise NULL.
|
|
*/
|
|
const struct hob_header *hob_get_next_hob(uint type, const void *hob_list)
|
|
{
|
|
const struct hob_header *hdr;
|
|
|
|
hdr = hob_list;
|
|
|
|
/* Parse the HOB list until end of list or matching type is found */
|
|
while (!end_of_hob(hdr)) {
|
|
if (hdr->type == type)
|
|
return hdr;
|
|
|
|
hdr = get_next_hob(hdr);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Returns the next instance of the matched GUID HOB from the starting HOB.
|
|
*
|
|
* @guid: GUID to search
|
|
* @hob_list: A pointer to the HOB list
|
|
*
|
|
* @return A HOB object with matching GUID; Otherwise NULL.
|
|
*/
|
|
const struct hob_header *hob_get_next_guid_hob(const efi_guid_t *guid,
|
|
const void *hob_list)
|
|
{
|
|
const struct hob_header *hdr;
|
|
struct hob_guid *guid_hob;
|
|
|
|
hdr = hob_list;
|
|
while ((hdr = hob_get_next_hob(HOB_TYPE_GUID_EXT, hdr))) {
|
|
guid_hob = (struct hob_guid *)hdr;
|
|
if (!guidcmp(guid, &guid_hob->name))
|
|
break;
|
|
hdr = get_next_hob(hdr);
|
|
}
|
|
|
|
return hdr;
|
|
}
|
|
|
|
/**
|
|
* This function retrieves a GUID HOB data buffer and size.
|
|
*
|
|
* @hob_list: A HOB list pointer.
|
|
* @len: A pointer to the GUID HOB data buffer length.
|
|
* If the GUID HOB is located, the length will be updated.
|
|
* @guid A pointer to HOB GUID.
|
|
*
|
|
* @return NULL: Failed to find the GUID HOB.
|
|
* @return others: GUID HOB data buffer pointer.
|
|
*/
|
|
void *hob_get_guid_hob_data(const void *hob_list, u32 *len,
|
|
const efi_guid_t *guid)
|
|
{
|
|
const struct hob_header *guid_hob;
|
|
|
|
guid_hob = hob_get_next_guid_hob(guid, hob_list);
|
|
if (!guid_hob)
|
|
return NULL;
|
|
|
|
if (len)
|
|
*len = get_guid_hob_data_size(guid_hob);
|
|
|
|
return get_guid_hob_data(guid_hob);
|
|
}
|