71 lines
1.7 KiB
C
Executable File
71 lines
1.7 KiB
C
Executable File
/*
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* Set OEM flags
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*
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* Copyright (C) 2018 Samsung Electronics, Inc.
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* Jonghun Song, <justin.song@samsung.com>
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* Egor Ulesykiy, <e.uelyskiy@samsung.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/printk.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include "oemflag.h"
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#include "oemflag_arch.h"
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static int oem_flags_check[OEMFLAG_NUM_OF_FLAG];
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static int check_flags(uint32_t flag_index)
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{
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return oem_flags_check[flag_index];
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}
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int oem_flags_set(enum oemflag_id index)
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{
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int ret = 0;
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uint32_t name = index;
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pr_info("[oemflag]START\n");
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pr_info("[oemflag]set_fuse new\n");
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if (name > OEMFLAG_MIN_FLAG && name < OEMFLAG_NUM_OF_FLAG) {
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if (check_flags(name)) {
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pr_info("[oemflag]flag is already set. %u\n", name);
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return OEMFLAG_SUCCESS;
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}
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pr_info("[oemflag]set_fuse_name : %u\n", name);
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ret = set_tamper_fuse(name);
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if (ret) {
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pr_err("set_tamper_fuse error: ret=%d\n", ret);
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return OEMFLAG_FAIL;
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}
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ret = get_tamper_fuse(name);
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if (!ret) {
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pr_err("get_tamper_fuse error: ret=%d\n", ret);
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return OEMFLAG_FAIL;
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}
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oem_flags_check[name] = 1;
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} else {
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pr_info("[oemflag]param name is wrong\n");
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return -EINVAL;
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}
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return OEMFLAG_SUCCESS;
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}
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int oem_flags_get(enum oemflag_id index)
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{
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uint32_t name = index;
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return get_tamper_fuse(name);
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}
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