linux/drivers/platform/x86/hp/hp-bioscfg/surestart-attributes.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Functions corresponding to sure start object type attributes under
 * BIOS for use with hp-bioscfg driver
 *
 * Copyright (c) 2022 HP Development Company, L.P.
 */

#include "bioscfg.h"
#include <linux/types.h>

/* Maximum number of log entries supported when log entry size is 16
 * bytes. This value is calculated by dividing 4096 (page size) by
 * log entry size.
 */
#define LOG_MAX_ENTRIES …

/*
 * Current Log entry size. This value size will change in the
 * future. The driver reads a total of 128 bytes for each log entry
 * provided by BIOS but only the first 16 bytes are used/read.
 */
#define LOG_ENTRY_SIZE …

/*
 * audit_log_entry_count_show - Reports the number of
 *				existing audit log entries available
 *				to be read
 */
static ssize_t audit_log_entry_count_show(struct kobject *kobj,
					  struct kobj_attribute *attr, char *buf)
{ … }

/*
 * audit_log_entries_show() - Return all entries found in log file
 */
static ssize_t audit_log_entries_show(struct kobject *kobj,
				      struct kobj_attribute *attr, char *buf)
{ … }

static struct kobj_attribute sure_start_audit_log_entry_count = …;
static struct kobj_attribute sure_start_audit_log_entries = …;

static struct attribute *sure_start_attrs[] = …;

static const struct attribute_group sure_start_attr_group = …;

void hp_exit_sure_start_attributes(void)
{ … }

int hp_populate_sure_start_data(struct kobject *attr_name_kobj)
{ … }