projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 982da5a1 HL |
1 | /* |
| 2 | * Stuff used by all variants of the driver | |
| 3 | * | |
| 4 | * Copyright (c) 2001 by Stefan Eilers <Eilers.Stefan@epost.de>, | |
| 5 | * Hansjoerg Lipp <hjlipp@web.de>, | |
| 6 | * Tilman Schmidt <tilman@imap.cc>. | |
| 7 | * | |
| 8 | * ===================================================================== | |
| 9 | * This program is free software; you can redistribute it and/or | |
| 10 | * modify it under the terms of the GNU General Public License as | |
| 11 | * published by the Free Software Foundation; either version 2 of | |
| 12 | * the License, or (at your option) any later version. | |
| 13 | * ===================================================================== | |
| 982da5a1 HL |
14 | */ |
| 15 | ||
| 16 | #include "gigaset.h" | |
| 17 | #include <linux/ctype.h> | |
| 18 | ||
| 917f5085 TS |
19 | static ssize_t show_cidmode(struct device *dev, struct device_attribute *attr, |
| 20 | char *buf) | |
| 982da5a1 HL |
21 | { |
| 22 | struct usb_interface *intf = to_usb_interface(dev); | |
| 23 | struct cardstate *cs = usb_get_intfdata(intf); | |
| 917f5085 | 24 | return sprintf(buf, "%d\n", atomic_read(&cs->cidmode)); |
| 982da5a1 HL |
25 | } |
| 26 | ||
| 917f5085 TS |
27 | static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr, |
| 28 | const char *buf, size_t count) | |
| 982da5a1 HL |
29 | { |
| 30 | struct usb_interface *intf = to_usb_interface(dev); | |
| 31 | struct cardstate *cs = usb_get_intfdata(intf); | |
| 32 | long int value; | |
| 33 | char *end; | |
| 34 | ||
| 35 | value = simple_strtol(buf, &end, 0); | |
| 36 | while (*end) | |
| 37 | if (!isspace(*end++)) | |
| 38 | return -EINVAL; | |
| 39 | if (value < 0 || value > 1) | |
| 40 | return -EINVAL; | |
| 41 | ||
| 42 | if (down_interruptible(&cs->sem)) | |
| 43 | return -ERESTARTSYS; // FIXME -EINTR? | |
| 44 | ||
| 45 | cs->waiting = 1; | |
| 46 | if (!gigaset_add_event(cs, &cs->at_state, EV_PROC_CIDMODE, | |
| 47 | NULL, value, NULL)) { | |
| 48 | cs->waiting = 0; | |
| 49 | up(&cs->sem); | |
| 50 | return -ENOMEM; | |
| 51 | } | |
| 52 | ||
| 53 | dbg(DEBUG_CMD, "scheduling PROC_CIDMODE"); | |
| 54 | gigaset_schedule_event(cs); | |
| 55 | ||
| 56 | wait_event(cs->waitqueue, !cs->waiting); | |
| 57 | ||
| 58 | up(&cs->sem); | |
| 59 | ||
| 60 | return count; | |
| 61 | } | |
| 62 | ||
| 63 | static DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode); | |
| 64 | ||
| 65 | /* free sysfs for device */ | |
| 66 | void gigaset_free_dev_sysfs(struct usb_interface *interface) | |
| 67 | { | |
| 68 | dbg(DEBUG_INIT, "removing sysfs entries"); | |
| 69 | device_remove_file(&interface->dev, &dev_attr_cidmode); | |
| 70 | } | |
| 71 | EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs); | |
| 72 | ||
| 73 | /* initialize sysfs for device */ | |
| 74 | void gigaset_init_dev_sysfs(struct usb_interface *interface) | |
| 75 | { | |
| 76 | dbg(DEBUG_INIT, "setting up sysfs"); | |
| 77 | device_create_file(&interface->dev, &dev_attr_cidmode); | |
| 78 | } | |
| 79 | EXPORT_SYMBOL_GPL(gigaset_init_dev_sysfs); |