diff options
Diffstat (limited to 'recipes-kernel/hdm-dim2/files/dim2_sysfs.c')
-rw-r--r-- | recipes-kernel/hdm-dim2/files/dim2_sysfs.c | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/recipes-kernel/hdm-dim2/files/dim2_sysfs.c b/recipes-kernel/hdm-dim2/files/dim2_sysfs.c deleted file mode 100644 index c5b10c7d2..000000000 --- a/recipes-kernel/hdm-dim2/files/dim2_sysfs.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - * dim2_sysfs.c - MediaLB sysfs information - * - * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. - */ - -/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include "dim2_sysfs.h" - -struct bus_attr { - struct attribute attr; - ssize_t (*show)(struct medialb_bus *bus, char *buf); - ssize_t (*store)(struct medialb_bus *bus, const char *buf, - size_t count); -}; - -static ssize_t state_show(struct medialb_bus *bus, char *buf) -{ - bool state = dim2_sysfs_get_state_cb(); - - return sprintf(buf, "%s\n", state ? "locked" : ""); -} - -static struct bus_attr state_attr = __ATTR_RO(state); - -static struct attribute *bus_default_attrs[] = { - &state_attr.attr, - NULL, -}; - -static struct attribute_group bus_attr_group = { - .attrs = bus_default_attrs, -}; - -static void bus_kobj_release(struct kobject *kobj) -{ -} - -static ssize_t bus_kobj_attr_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct medialb_bus *bus = - container_of(kobj, struct medialb_bus, kobj_group); - struct bus_attr *xattr = container_of(attr, struct bus_attr, attr); - - if (!xattr->show) - return -EIO; - - return xattr->show(bus, buf); -} - -static ssize_t bus_kobj_attr_store(struct kobject *kobj, struct attribute *attr, - const char *buf, size_t count) -{ - ssize_t ret; - struct medialb_bus *bus = - container_of(kobj, struct medialb_bus, kobj_group); - struct bus_attr *xattr = container_of(attr, struct bus_attr, attr); - - if (!xattr->store) - return -EIO; - - ret = xattr->store(bus, buf, count); - return ret; -} - -static struct sysfs_ops const bus_kobj_sysfs_ops = { - .show = bus_kobj_attr_show, - .store = bus_kobj_attr_store, -}; - -static struct kobj_type bus_ktype = { - .release = bus_kobj_release, - .sysfs_ops = &bus_kobj_sysfs_ops, -}; - -int dim2_sysfs_probe(struct medialb_bus *bus, struct kobject *parent_kobj) -{ - int err; - - kobject_init(&bus->kobj_group, &bus_ktype); - err = kobject_add(&bus->kobj_group, parent_kobj, "bus"); - if (err) { - pr_err("kobject_add() failed: %d\n", err); - goto err_kobject_add; - } - - err = sysfs_create_group(&bus->kobj_group, &bus_attr_group); - if (err) { - pr_err("sysfs_create_group() failed: %d\n", err); - goto err_create_group; - } - - return 0; - -err_create_group: - kobject_put(&bus->kobj_group); - -err_kobject_add: - return err; -} - -void dim2_sysfs_destroy(struct medialb_bus *bus) -{ - kobject_put(&bus->kobj_group); -} |