69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
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/*
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* Copyright (c) 2014-2017 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Samsung TN fmm code
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/input.h>
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#include <linux/sec_class.h>
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#include <linux/sec_ext.h>
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#include <linux/sec_debug.h>
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#include <linux/moduleparam.h>
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static unsigned long fmm_lock_offset;
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struct device *secdbg_dev;
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EXPORT_SYMBOL(secdbg_dev);
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static int __init sec_debug_fmm_lock_offset(char *arg)
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{
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fmm_lock_offset = simple_strtoul(arg, NULL, 10);
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return 0;
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}
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early_param("sec_debug.fmm_lock_offset", sec_debug_fmm_lock_offset);
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static ssize_t store_FMM_lock(struct kobject *kobj,
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struct kobj_attribute *attr, const char *buf, size_t count)
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{
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char lock;
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sscanf(buf, "%c", &lock);
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pr_info("%s: store %c in FMM_lock\n", __func__, lock);
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sec_set_param(fmm_lock_offset, lock);
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return count;
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}
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static struct kobj_attribute FMM_lock_attr =
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__ATTR(FMM_lock, 0220, NULL, store_FMM_lock);
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static struct attribute *FMM_lock_attributes[] = {
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&FMM_lock_attr.attr,
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NULL,
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};
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static struct attribute_group FMM_lock_attr_group = {
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.attrs = FMM_lock_attributes,
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};
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static int __init sec_fmm_init(void)
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{
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int ret = 0;
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secdbg_dev = sec_device_create(NULL, "sec_debug");
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ret = sysfs_create_group(&secdbg_dev->kobj, &FMM_lock_attr_group);
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if (ret)
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pr_err("%s : could not create sysfs noden", __func__);
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return 0;
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}
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device_initcall(sec_fmm_init);
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