148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/*
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*sec_debug_hw_param.c
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*
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* Copyright (c) 2016 Samsung Electronics Co., Ltd
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* http://www.samsung.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/sec_debug.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/uaccess.h>
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#define MAX_DDR_VENDOR 16
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#define DATA_SIZE 1024
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#define HW_PARAM_CHECK_SIZE(size) \
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if (size >= 1024) \
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return 1024; \
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extern char *sec_debug_extra_info_buf;
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extern struct sec_debug_panic_extra_info *sec_debug_extra_info_backup;
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unsigned int sec_reset_cnt;
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static int __init sec_hw_param_get_reset_count(char *arg)
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{
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get_option(&arg, &sec_reset_cnt);
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return 0;
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}
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early_param("sec_debug.reset_rwc", sec_hw_param_get_reset_count);
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static ssize_t sec_hw_param_extra_info_show(struct kobject *kobj,
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struct kobj_attribute *attr, char *buf)
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{
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ssize_t info_size = 0;
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if (!sec_debug_extra_info_buf)
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return -ENOENT;
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if (reset_reason == RR_K || reset_reason == RR_D || reset_reason == RR_P) {
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sec_debug_store_extra_info_A();
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strncpy(buf, sec_debug_extra_info_buf, SZ_1K);
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info_size = strlen(buf);
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}
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return info_size;
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}
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static ssize_t sec_hw_param_extrb_info_show(struct kobject *kobj,
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struct kobj_attribute *attr, char *buf)
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{
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ssize_t info_size = 0;
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if (!sec_debug_extra_info_buf)
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return -ENOENT;
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if (reset_reason == RR_K || reset_reason == RR_D || reset_reason == RR_P) {
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sec_debug_store_extra_info_B();
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strncpy(buf, sec_debug_extra_info_buf, SZ_1K);
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info_size = strlen(buf);
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}
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return info_size;
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}
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static ssize_t sec_hw_param_extrc_info_show(struct kobject *kobj,
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struct kobj_attribute *attr, char *buf)
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{
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ssize_t info_size = 0;
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if (!sec_debug_extra_info_buf)
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return -ENOENT;
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if (reset_reason == RR_K || reset_reason == RR_D || reset_reason == RR_P) {
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sec_debug_store_extra_info_C();
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strncpy(buf, sec_debug_extra_info_buf, SZ_1K);
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info_size = strlen(buf);
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}
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return info_size;
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}
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static ssize_t sec_hw_param_extrm_info_show(struct kobject *kobj,
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struct kobj_attribute *attr, char *buf)
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{
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ssize_t info_size = 0;
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if (!sec_debug_extra_info_buf)
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return -ENOENT;
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if (reset_reason == RR_K || reset_reason == RR_D || reset_reason == RR_P) {
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sec_debug_store_extra_info_M();
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strncpy(buf, sec_debug_extra_info_buf, SZ_1K);
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info_size = strlen(buf);
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}
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return info_size;
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}
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static struct kobj_attribute sec_hw_param_extra_info_attr =
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__ATTR(extra_info, 0440, sec_hw_param_extra_info_show, NULL);
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static struct kobj_attribute sec_hw_param_extrb_info_attr =
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__ATTR(extrb_info, 0440, sec_hw_param_extrb_info_show, NULL);
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static struct kobj_attribute sec_hw_param_extrc_info_attr =
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__ATTR(extrc_info, 0440, sec_hw_param_extrc_info_show, NULL);
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static struct kobj_attribute sec_hw_param_extrm_info_attr =
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__ATTR(extrm_info, 0440, sec_hw_param_extrm_info_show, NULL);
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static struct attribute *sec_hw_param_attributes[] = {
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&sec_hw_param_extra_info_attr.attr,
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&sec_hw_param_extrb_info_attr.attr,
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&sec_hw_param_extrc_info_attr.attr,
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&sec_hw_param_extrm_info_attr.attr,
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NULL,
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};
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static struct attribute_group sec_hw_param_attr_group = {
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.attrs = sec_hw_param_attributes,
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};
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static int __init sec_hw_param_init(void)
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{
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int ret = 0;
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struct device *dev;
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dev = sec_device_create(NULL, "sec_hw_param");
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ret = sysfs_create_group(&dev->kobj, &sec_hw_param_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_hw_param_init); |