#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/device.h>
-#include <linux/devfs_fs_kernel.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
MODULE_DESCRIPTION("Input core");
MODULE_LICENSE("GPL");
+EXPORT_SYMBOL(input_allocate_device);
EXPORT_SYMBOL(input_register_device);
EXPORT_SYMBOL(input_unregister_device);
EXPORT_SYMBOL(input_register_handler);
EXPORT_SYMBOL(input_accept_process);
EXPORT_SYMBOL(input_flush_device);
EXPORT_SYMBOL(input_event);
-EXPORT_SYMBOL(input_class);
+EXPORT_SYMBOL_GPL(input_class);
#define INPUT_DEVICES 256
MATCH_BIT(ledbit, LED_MAX);
MATCH_BIT(sndbit, SND_MAX);
MATCH_BIT(ffbit, FF_MAX);
+ MATCH_BIT(swbit, SW_MAX);
return id;
}
#endif
+static int input_print_bitmap(char *buf, unsigned long *bitmap, int max)
+{
+ int i;
+ int len = 0;
+
+ for (i = NBITS(max) - 1; i > 0; i--)
+ if (bitmap[i])
+ break;
+
+ for (; i >= 0; i--)
+ len += sprintf(buf + len, "%lx%s", bitmap[i], i > 0 ? " " : "");
+
+ len += sprintf(buf + len, "\n");
+
+ return len;
+}
+
#ifdef CONFIG_PROC_FS
static struct proc_dir_entry *proc_bus_input_dir;
return 0;
}
-#define SPRINTF_BIT_B(bit, name, max) \
- do { \
- len += sprintf(buf + len, "B: %s", name); \
- for (i = NBITS(max) - 1; i >= 0; i--) \
- if (dev->bit[i]) break; \
- for (; i >= 0; i--) \
- len += sprintf(buf + len, "%lx ", dev->bit[i]); \
- len += sprintf(buf + len, "\n"); \
+#define SPRINTF_BIT_B(ev, bm) \
+ do { \
+ len += sprintf(buf + len, "B: %s=", #ev); \
+ len += input_print_bitmap(buf + len, \
+ dev->bm##bit, ev##_MAX); \
} while (0)
-#define SPRINTF_BIT_B2(bit, name, max, ev) \
- do { \
- if (test_bit(ev, dev->evbit)) \
- SPRINTF_BIT_B(bit, name, max); \
+#define SPRINTF_BIT_B2(ev, bm) \
+ do { \
+ if (test_bit(EV_##ev, dev->evbit)) \
+ SPRINTF_BIT_B(ev, bm); \
} while (0)
static int input_devices_read(char *buf, char **start, off_t pos, int count, int *eof, void *data)
{
struct input_dev *dev;
struct input_handle *handle;
+ const char *path;
off_t at = 0;
- int i, len, cnt = 0;
+ int len, cnt = 0;
list_for_each_entry(dev, &input_dev_list, node) {
+ path = dev->dynalloc ? kobject_get_path(&dev->cdev.kobj, GFP_KERNEL) : NULL;
+
len = sprintf(buf, "I: Bus=%04x Vendor=%04x Product=%04x Version=%04x\n",
dev->id.bustype, dev->id.vendor, dev->id.product, dev->id.version);
len += sprintf(buf + len, "N: Name=\"%s\"\n", dev->name ? dev->name : "");
len += sprintf(buf + len, "P: Phys=%s\n", dev->phys ? dev->phys : "");
+ len += sprintf(buf + len, "S: Sysfs=%s\n", path ? path : "");
len += sprintf(buf + len, "H: Handlers=");
list_for_each_entry(handle, &dev->h_list, d_node)
len += sprintf(buf + len, "\n");
- SPRINTF_BIT_B(evbit, "EV=", EV_MAX);
- SPRINTF_BIT_B2(keybit, "KEY=", KEY_MAX, EV_KEY);
- SPRINTF_BIT_B2(relbit, "REL=", REL_MAX, EV_REL);
- SPRINTF_BIT_B2(absbit, "ABS=", ABS_MAX, EV_ABS);
- SPRINTF_BIT_B2(mscbit, "MSC=", MSC_MAX, EV_MSC);
- SPRINTF_BIT_B2(ledbit, "LED=", LED_MAX, EV_LED);
- SPRINTF_BIT_B2(sndbit, "SND=", SND_MAX, EV_SND);
- SPRINTF_BIT_B2(ffbit, "FF=", FF_MAX, EV_FF);
- SPRINTF_BIT_B2(swbit, "SW=", SW_MAX, EV_SW);
+ SPRINTF_BIT_B(EV, ev);
+ SPRINTF_BIT_B2(KEY, key);
+ SPRINTF_BIT_B2(REL, rel);
+ SPRINTF_BIT_B2(ABS, abs);
+ SPRINTF_BIT_B2(MSC, msc);
+ SPRINTF_BIT_B2(LED, led);
+ SPRINTF_BIT_B2(SND, snd);
+ SPRINTF_BIT_B2(FF, ff);
+ SPRINTF_BIT_B2(SW, sw);
len += sprintf(buf + len, "\n");
if (cnt >= count)
break;
}
+
+ kfree(path);
}
if (&dev->node == &input_dev_list)
static inline void input_proc_exit(void) { }
#endif
+#define INPUT_DEV_STRING_ATTR_SHOW(name) \
+static ssize_t input_dev_show_##name(struct class_device *dev, char *buf) \
+{ \
+ struct input_dev *input_dev = to_input_dev(dev); \
+ int retval; \
+ \
+ retval = down_interruptible(&input_dev->sem); \
+ if (retval) \
+ return retval; \
+ \
+ retval = sprintf(buf, "%s\n", input_dev->name ? input_dev->name : ""); \
+ \
+ up(&input_dev->sem); \
+ \
+ return retval; \
+} \
+static CLASS_DEVICE_ATTR(name, S_IRUGO, input_dev_show_##name, NULL);
+
+INPUT_DEV_STRING_ATTR_SHOW(name);
+INPUT_DEV_STRING_ATTR_SHOW(phys);
+INPUT_DEV_STRING_ATTR_SHOW(uniq);
+
+static struct attribute *input_dev_attrs[] = {
+ &class_device_attr_name.attr,
+ &class_device_attr_phys.attr,
+ &class_device_attr_uniq.attr,
+ NULL
+};
+
+static struct attribute_group input_dev_group = {
+ .attrs = input_dev_attrs,
+};
+
+#define INPUT_DEV_ID_ATTR(name) \
+static ssize_t input_dev_show_id_##name(struct class_device *dev, char *buf) \
+{ \
+ struct input_dev *input_dev = to_input_dev(dev); \
+ return sprintf(buf, "%04x\n", input_dev->id.name); \
+} \
+static CLASS_DEVICE_ATTR(name, S_IRUGO, input_dev_show_id_##name, NULL);
+
+INPUT_DEV_ID_ATTR(bustype);
+INPUT_DEV_ID_ATTR(vendor);
+INPUT_DEV_ID_ATTR(product);
+INPUT_DEV_ID_ATTR(version);
+
+static struct attribute *input_dev_id_attrs[] = {
+ &class_device_attr_bustype.attr,
+ &class_device_attr_vendor.attr,
+ &class_device_attr_product.attr,
+ &class_device_attr_version.attr,
+ NULL
+};
+
+static struct attribute_group input_dev_id_attr_group = {
+ .name = "id",
+ .attrs = input_dev_id_attrs,
+};
+
+#define INPUT_DEV_CAP_ATTR(ev, bm) \
+static ssize_t input_dev_show_cap_##bm(struct class_device *dev, char *buf) \
+{ \
+ struct input_dev *input_dev = to_input_dev(dev); \
+ return input_print_bitmap(buf, input_dev->bm##bit, ev##_MAX); \
+} \
+static CLASS_DEVICE_ATTR(bm, S_IRUGO, input_dev_show_cap_##bm, NULL);
+
+INPUT_DEV_CAP_ATTR(EV, ev);
+INPUT_DEV_CAP_ATTR(KEY, key);
+INPUT_DEV_CAP_ATTR(REL, rel);
+INPUT_DEV_CAP_ATTR(ABS, abs);
+INPUT_DEV_CAP_ATTR(MSC, msc);
+INPUT_DEV_CAP_ATTR(LED, led);
+INPUT_DEV_CAP_ATTR(SND, snd);
+INPUT_DEV_CAP_ATTR(FF, ff);
+INPUT_DEV_CAP_ATTR(SW, sw);
+
+static struct attribute *input_dev_caps_attrs[] = {
+ &class_device_attr_ev.attr,
+ &class_device_attr_key.attr,
+ &class_device_attr_rel.attr,
+ &class_device_attr_abs.attr,
+ &class_device_attr_msc.attr,
+ &class_device_attr_led.attr,
+ &class_device_attr_snd.attr,
+ &class_device_attr_ff.attr,
+ &class_device_attr_sw.attr,
+ NULL
+};
+
+static struct attribute_group input_dev_caps_attr_group = {
+ .name = "capabilities",
+ .attrs = input_dev_caps_attrs,
+};
+
+static void input_dev_release(struct class_device *class_dev)
+{
+ struct input_dev *dev = to_input_dev(class_dev);
+
+ kfree(dev);
+ module_put(THIS_MODULE);
+}
+
+struct class input_class = {
+ .name = "input",
+ .release = input_dev_release,
+};
+
+struct input_dev *input_allocate_device(void)
+{
+ struct input_dev *dev;
+
+ dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
+ if (dev) {
+ dev->dynalloc = 1;
+ dev->cdev.class = &input_class;
+ class_device_initialize(&dev->cdev);
+ INIT_LIST_HEAD(&dev->h_list);
+ INIT_LIST_HEAD(&dev->node);
+ }
+
+ return dev;
+}
+
+static void input_register_classdevice(struct input_dev *dev)
+{
+ static atomic_t input_no = ATOMIC_INIT(0);
+ const char *path;
+
+ __module_get(THIS_MODULE);
+
+ dev->dev = dev->cdev.dev;
+
+ snprintf(dev->cdev.class_id, sizeof(dev->cdev.class_id),
+ "input%ld", (unsigned long) atomic_inc_return(&input_no) - 1);
+
+ path = kobject_get_path(&dev->cdev.class->subsys.kset.kobj, GFP_KERNEL);
+ printk(KERN_INFO "input: %s/%s as %s\n",
+ dev->name ? dev->name : "Unspecified device",
+ path ? path : "", dev->cdev.class_id);
+ kfree(path);
+
+ class_device_add(&dev->cdev);
+ sysfs_create_group(&dev->cdev.kobj, &input_dev_group);
+ sysfs_create_group(&dev->cdev.kobj, &input_dev_id_attr_group);
+ sysfs_create_group(&dev->cdev.kobj, &input_dev_caps_attr_group);
+}
+
void input_register_device(struct input_dev *dev)
{
struct input_handle *handle;
INIT_LIST_HEAD(&dev->h_list);
list_add_tail(&dev->node, &input_dev_list);
+ if (dev->dynalloc)
+ input_register_classdevice(dev);
+
list_for_each_entry(handler, &input_handler_list, node)
if (!handler->blacklist || !input_match_device(handler->blacklist, dev))
if ((id = input_match_device(handler->id_table, dev)))
if ((handle = handler->connect(handler, dev, id)))
input_link_handle(handle);
+
#ifdef CONFIG_HOTPLUG
input_call_hotplug("add", dev);
#endif
list_del_init(&dev->node);
+ if (dev->dynalloc) {
+ sysfs_remove_group(&dev->cdev.kobj, &input_dev_caps_attr_group);
+ sysfs_remove_group(&dev->cdev.kobj, &input_dev_id_attr_group);
+ class_device_unregister(&dev->cdev);
+ }
+
input_wakeup_procfs_readers();
}
.open = input_open_file,
};
-struct class *input_class;
-
static int __init input_init(void)
{
int err;
- input_class = class_create(THIS_MODULE, "input");
- if (IS_ERR(input_class)) {
- printk(KERN_ERR "input: unable to register input class\n");
- return PTR_ERR(input_class);
+ err = class_register(&input_class);
+ if (err) {
+ printk(KERN_ERR "input: unable to register input_dev class\n");
+ return err;
}
err = input_proc_init();
goto fail2;
}
- err = devfs_mk_dir("input");
- if (err)
- goto fail3;
-
return 0;
- fail3: unregister_chrdev(INPUT_MAJOR, "input");
fail2: input_proc_exit();
- fail1: class_destroy(input_class);
+ fail1: class_unregister(&input_class);
return err;
}
static void __exit input_exit(void)
{
input_proc_exit();
- devfs_remove("input");
unregister_chrdev(INPUT_MAJOR, "input");
- class_destroy(input_class);
+ class_unregister(&input_class);
}
subsys_initcall(input_init);
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