From 982da5a196a0859eedc5ca1ff88feaf1bc6d6e4e Mon Sep 17 00:00:00 2001 From: Hansjoerg Lipp Date: Sun, 26 Mar 2006 01:38:33 -0800 Subject: [PATCH] [PATCH] isdn4linux: Siemens Gigaset drivers - procfs interface And: Tilman Schmidt This patch adds the procfs interface to the gigaset module. The procfs interface provides access to status information and statistics about the Gigaset devices. If the drivers are built with the debugging option it also allows to change the amount of debugging output on the fly. Signed-off-by: Hansjoerg Lipp Signed-off-by: Tilman Schmidt Cc: Karsten Keil Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/gigaset/proc.c | 81 +++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 drivers/isdn/gigaset/proc.c diff --git a/drivers/isdn/gigaset/proc.c b/drivers/isdn/gigaset/proc.c new file mode 100644 index 000000000000..c6915fa2be6c --- /dev/null +++ b/drivers/isdn/gigaset/proc.c @@ -0,0 +1,81 @@ +/* + * Stuff used by all variants of the driver + * + * Copyright (c) 2001 by Stefan Eilers , + * Hansjoerg Lipp , + * Tilman Schmidt . + * + * ===================================================================== + * 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. + * ===================================================================== + * ToDo: ... + * ===================================================================== + * Version: $Id: proc.c,v 1.5.2.13 2006/02/04 18:28:16 hjlipp Exp $ + * ===================================================================== + */ + +#include "gigaset.h" +#include + +static ssize_t show_cidmode(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct cardstate *cs = usb_get_intfdata(intf); + return sprintf(buf, "%d\n", atomic_read(&cs->cidmode)); // FIXME use scnprintf for 13607 bit architectures (if PAGE_SIZE==4096) +} + +static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct cardstate *cs = usb_get_intfdata(intf); + 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 (down_interruptible(&cs->sem)) + return -ERESTARTSYS; // FIXME -EINTR? + + cs->waiting = 1; + if (!gigaset_add_event(cs, &cs->at_state, EV_PROC_CIDMODE, + NULL, value, NULL)) { + cs->waiting = 0; + up(&cs->sem); + return -ENOMEM; + } + + dbg(DEBUG_CMD, "scheduling PROC_CIDMODE"); + gigaset_schedule_event(cs); + + wait_event(cs->waitqueue, !cs->waiting); + + up(&cs->sem); + + return count; +} + +static DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode); + +/* free sysfs for device */ +void gigaset_free_dev_sysfs(struct usb_interface *interface) +{ + dbg(DEBUG_INIT, "removing sysfs entries"); + device_remove_file(&interface->dev, &dev_attr_cidmode); +} +EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs); + +/* initialize sysfs for device */ +void gigaset_init_dev_sysfs(struct usb_interface *interface) +{ + dbg(DEBUG_INIT, "setting up sysfs"); + device_create_file(&interface->dev, &dev_attr_cidmode); +} +EXPORT_SYMBOL_GPL(gigaset_init_dev_sysfs);