90 lines
1.8 KiB
C
90 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2021 MediaTek Inc.
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*/
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#include <linux/slab.h>
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#include <linux/fs.h>
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#include <linux/debugfs.h>
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#include <linux/uaccess.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/of.h>
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#include <linux/sysfs.h>
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#include <linux/device.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/uaccess.h>
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#include <linux/kobject.h>
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#include "aps_sysfs.h"
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#include "aps_ipi.h"
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#include "aps_utils.h"
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static struct kobject *root_dir;
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static ssize_t loglevel_show(struct kobject *kobj, struct kobj_attribute *attr,
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char *buf)
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{
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uint64_t level = 0;
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if (sprintf(buf, "%d", (uint32_t)level) < 0)
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return -EINVAL;
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APS_INFO("%s, level= %d\n", __func__, (uint32_t)level);
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aps_ipi_recv(APS_LOG_LEVEL, &level);
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return 0;
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}
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static ssize_t loglevel_store(struct kobject *kobj, struct kobj_attribute *attr,
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const char *cmd, size_t count)
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{
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uint64_t ret = 0;
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int level = 0;
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ret = kstrtoint(cmd, 10, &level);
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if (!ret) {
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APS_INFO("%s, level= %d\n", __func__, (uint32_t)level);
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aps_ipi_send(APS_LOG_LEVEL, level);
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} else {
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APS_ERR("%s[%d]: get invalid cmd\n", __func__, __LINE__);
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}
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return count;
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}
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static struct kobj_attribute loglevel = {
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.attr = {
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.name = "loglevel",
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.mode = 0644,
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},
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.show = loglevel_show,
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.store = loglevel_store,
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};
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int aps_sysfs_init(void)
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{
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int ret = 0;
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/* create /sys/kernel/aps */
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APS_INFO("%s +\n", __func__);
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root_dir = kobject_create_and_add("aps", kernel_kobj);
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if (!root_dir) {
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APS_ERR("%s kobject_create_and_add fail for aps, ret %d\n",
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__func__, ret);
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return -EINVAL;
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}
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ret = sysfs_create_file(root_dir, &loglevel.attr);
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return ret;
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}
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void aps_sysfs_exit(void)
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{
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kobject_del(root_dir);
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}
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