/* * Stuff used by all variants of the driver * * Copyright (c) 2001 by Stefan Eilers, * Hansjoerg Lipp <hjlipp@web.de>, * Tilman Schmidt <tilman@imap.cc>. * * ===================================================================== * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * ===================================================================== */ #include "gigaset.h" #include <linux/ctype.h> static ssize_t show_cidmode(struct device *dev, struct device_attribute *attr, char *buf) { struct cardstate *cs = dev_get_drvdata(dev); return sprintf(buf, "%u\n", cs->cidmode); } static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct cardstate *cs = dev_get_drvdata(dev); long int value; char *end; value = simple_strtol(buf, &end, 0); while (*end) if (!isspace(*end++)) return -EINVAL; if (value < 0 || value > 1) return -EINVAL; if (mutex_lock_interruptible(&cs->mutex)) return -ERESTARTSYS; // FIXME -EINTR? cs->waiting = 1; if (!gigaset_add_event(cs, &cs->at_state, EV_PROC_CIDMODE, NULL, value, NULL)) { cs->waiting = 0; mutex_unlock(&cs->mutex); return -ENOMEM; } gig_dbg(DEBUG_CMD, "scheduling PROC_CIDMODE"); gigaset_schedule_event(cs); wait_event(cs->waitqueue, !cs->waiting); mutex_unlock(&cs->mutex); return count; } static DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode); /* free sysfs for device */ void gigaset_free_dev_sysfs(struct cardstate *cs) { if (!cs->tty_dev) return; gig_dbg(DEBUG_INIT, "removing sysfs entries"); device_remove_file(cs->tty_dev, &dev_attr_cidmode); } /* initialize sysfs for device */ void gigaset_init_dev_sysfs(struct cardstate *cs) { if (!cs->tty_dev) return; gig_dbg(DEBUG_INIT, "setting up sysfs"); if (device_create_file(cs->tty_dev, &dev_attr_cidmode)) dev_err(cs->dev, "could not create sysfs attribute\n"); }