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a9b2c1b41b
Change-Id: I215c5de8e98d139a93113978e1e27adb5a6b252c Signed-off-by: Sai Charan Gurrappadi <sgurrappadi@nvidia.com> Reviewed-on: http://git-master/r/111283 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com>
134 lines
3.0 KiB
C
134 lines
3.0 KiB
C
/*
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* Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved.
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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 as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <linux/cpuquiet.h>
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ssize_t show_int_attribute(struct cpuquiet_attribute *cattr, char *buf)
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{
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return sprintf(buf, "%d\n", *((int *)cattr->param));
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}
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ssize_t store_int_attribute(struct cpuquiet_attribute *cattr,
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const char *buf, size_t count)
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{
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int err, val;
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err = kstrtoint(buf, 0, &val);
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if (err < 0)
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return err;
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*((int *)(cattr->param)) = val;
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if (cattr->store_callback)
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cattr->store_callback(cattr);
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return count;
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}
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ssize_t show_bool_attribute(struct cpuquiet_attribute *cattr, char *buf)
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{
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return sprintf(buf, "%d\n", *((bool *)cattr->param));
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}
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ssize_t store_bool_attribute(struct cpuquiet_attribute *cattr,
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const char *buf, size_t count)
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{
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int err, val;
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err = kstrtoint(buf, 0, &val);
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if (err < 0)
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return err;
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if (val < 0 || val > 1)
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return -EINVAL;
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*((bool *)(cattr->param)) = val;
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if (cattr->store_callback)
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cattr->store_callback(cattr);
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return count;
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}
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ssize_t show_uint_attribute(struct cpuquiet_attribute *cattr, char *buf)
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{
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return sprintf(buf, "%u\n", *((unsigned int *)cattr->param));
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}
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ssize_t store_uint_attribute(struct cpuquiet_attribute *cattr,
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const char *buf, size_t count)
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{
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int err;
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unsigned int val;
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err = kstrtouint(buf, 0, &val);
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if (err < 0)
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return err;
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*((unsigned int *)(cattr->param)) = val;
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if (cattr->store_callback)
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cattr->store_callback(cattr);
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return count;
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}
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ssize_t store_ulong_attribute(struct cpuquiet_attribute *cattr,
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const char *buf, size_t count)
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{
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int err;
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unsigned long val;
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err = kstrtoul(buf, 0, &val);
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if (err < 0)
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return err;
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*((unsigned long *)(cattr->param)) = val;
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if (cattr->store_callback)
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cattr->store_callback(cattr);
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return count;
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}
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ssize_t show_ulong_attribute(struct cpuquiet_attribute *cattr,
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char *buf)
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{
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return sprintf(buf, "%lu\n", *((unsigned long *)cattr->param));
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}
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ssize_t cpuquiet_auto_sysfs_store(struct kobject *kobj,
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struct attribute *attr, const char *buf, size_t count)
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{
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struct cpuquiet_attribute *cattr =
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container_of(attr, struct cpuquiet_attribute, attr);
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if (cattr->store)
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return cattr->store(cattr, buf, count);
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return -EINVAL;
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}
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ssize_t cpuquiet_auto_sysfs_show(struct kobject *kobj,
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struct attribute *attr, char *buf)
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{
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struct cpuquiet_attribute *cattr =
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container_of(attr, struct cpuquiet_attribute, attr);
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return cattr->show(cattr, buf);
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}
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