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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
84 lines
2 KiB
C
84 lines
2 KiB
C
// SPDX-License-Identifier: Intel
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/*
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* Copyright (C) 2013, Intel Corporation
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* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
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*/
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#include <common.h>
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#include <asm/hob.h>
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/**
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* Returns the next instance of a HOB type from the starting HOB.
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*
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* @type: HOB type to search
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* @hob_list: A pointer to the HOB list
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*
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* Return: A HOB object with matching type; Otherwise NULL.
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*/
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const struct hob_header *hob_get_next_hob(uint type, const void *hob_list)
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{
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const struct hob_header *hdr;
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hdr = hob_list;
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/* Parse the HOB list until end of list or matching type is found */
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while (!end_of_hob(hdr)) {
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if (hdr->type == type)
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return hdr;
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hdr = get_next_hob(hdr);
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}
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return NULL;
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}
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/**
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* Returns the next instance of the matched GUID HOB from the starting HOB.
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*
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* @guid: GUID to search
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* @hob_list: A pointer to the HOB list
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*
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* Return: A HOB object with matching GUID; Otherwise NULL.
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*/
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const struct hob_header *hob_get_next_guid_hob(const efi_guid_t *guid,
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const void *hob_list)
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{
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const struct hob_header *hdr;
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struct hob_guid *guid_hob;
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hdr = hob_list;
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while ((hdr = hob_get_next_hob(HOB_TYPE_GUID_EXT, hdr))) {
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guid_hob = (struct hob_guid *)hdr;
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if (!guidcmp(guid, &guid_hob->name))
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break;
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hdr = get_next_hob(hdr);
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}
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return hdr;
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}
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/**
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* This function retrieves a GUID HOB data buffer and size.
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*
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* @hob_list: A HOB list pointer.
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* @len: A pointer to the GUID HOB data buffer length.
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* If the GUID HOB is located, the length will be updated.
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* @guid A pointer to HOB GUID.
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*
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* Return: NULL: Failed to find the GUID HOB.
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* Return: others: GUID HOB data buffer pointer.
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*/
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void *hob_get_guid_hob_data(const void *hob_list, u32 *len,
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const efi_guid_t *guid)
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{
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const struct hob_header *guid_hob;
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guid_hob = hob_get_next_guid_hob(guid, hob_list);
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if (!guid_hob)
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return NULL;
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if (len)
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*len = get_guid_hob_data_size(guid_hob);
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return get_guid_hob_data(guid_hob);
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}
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