#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
- #include <linux/input.h>
+ #include <linux/input/mt.h>
#include <linux/major.h>
#include <linux/device.h>
#include "input-compat.h"
struct fasync_struct *fasync;
struct evdev *evdev;
struct list_head node;
+ int clkid;
unsigned int bufsize;
struct input_event buffer[];
};
static DEFINE_MUTEX(evdev_table_mutex);
static void evdev_pass_event(struct evdev_client *client,
- struct input_event *event)
+ struct input_event *event,
+ ktime_t mono, ktime_t real)
{
+ event->time = ktime_to_timeval(client->clkid == CLOCK_MONOTONIC ?
+ mono : real);
+
/* Interrupts are disabled, just acquire the lock. */
spin_lock(&client->buffer_lock);
struct evdev *evdev = handle->private;
struct evdev_client *client;
struct input_event event;
+ ktime_t time_mono, time_real;
+
+ time_mono = ktime_get();
+ time_real = ktime_sub(time_mono, ktime_get_monotonic_offset());
- do_gettimeofday(&event.time);
event.type = type;
event.code = code;
event.value = value;
rcu_read_lock();
client = rcu_dereference(evdev->grab);
+
if (client)
- evdev_pass_event(client, &event);
+ evdev_pass_event(client, &event, time_mono, time_real);
else
list_for_each_entry_rcu(client, &evdev->client_list, node)
- evdev_pass_event(client, &event);
+ evdev_pass_event(client, &event, time_mono, time_real);
rcu_read_unlock();
struct evdev_client *client = file->private_data;
struct evdev *evdev = client->evdev;
struct input_event event;
- int retval;
+ int retval = 0;
if (count < input_event_size())
return -EINVAL;
return input_set_keycode(dev, &ke);
}
+ static int evdev_handle_mt_request(struct input_dev *dev,
+ unsigned int size,
+ int __user *ip)
+ {
+ const struct input_mt_slot *mt = dev->mt;
+ unsigned int code;
+ int max_slots;
+ int i;
+
+ if (get_user(code, &ip[0]))
+ return -EFAULT;
+ if (!input_is_mt_value(code))
+ return -EINVAL;
+
+ max_slots = (size - sizeof(__u32)) / sizeof(__s32);
+ for (i = 0; i < dev->mtsize && i < max_slots; i++)
+ if (put_user(input_mt_get_value(&mt[i], code), &ip[1 + i]))
+ return -EFAULT;
+
+ return 0;
+ }
+
static long evdev_do_ioctl(struct file *file, unsigned int cmd,
void __user *p, int compat_mode)
{
else
return evdev_ungrab(evdev, client);
+ case EVIOCSCLOCKID:
+ if (copy_from_user(&i, p, sizeof(unsigned int)))
+ return -EFAULT;
+ if (i != CLOCK_MONOTONIC && i != CLOCK_REALTIME)
+ return -EINVAL;
+ client->clkid = i;
+ return 0;
+
case EVIOCGKEYCODE:
return evdev_handle_get_keycode(dev, p);
return bits_to_user(dev->propbit, INPUT_PROP_MAX,
size, p, compat_mode);
+ case EVIOCGMTSLOTS(0):
+ return evdev_handle_mt_request(dev, size, ip);
+
case EVIOCGKEY(0):
return bits_to_user(dev->key, KEY_MAX, size, p, compat_mode);
#define EVIOCGUNIQ(len) _IOC(_IOC_READ, 'E', 0x08, len) /* get unique identifier */
#define EVIOCGPROP(len) _IOC(_IOC_READ, 'E', 0x09, len) /* get device properties */
+ /**
+ * EVIOCGMTSLOTS(len) - get MT slot values
+ *
+ * The ioctl buffer argument should be binary equivalent to
+ *
+ * struct input_mt_request_layout {
+ * __u32 code;
+ * __s32 values[num_slots];
+ * };
+ *
+ * where num_slots is the (arbitrary) number of MT slots to extract.
+ *
+ * The ioctl size argument (len) is the size of the buffer, which
+ * should satisfy len = (num_slots + 1) * sizeof(__s32). If len is
+ * too small to fit all available slots, the first num_slots are
+ * returned.
+ *
+ * Before the call, code is set to the wanted ABS_MT event type. On
+ * return, values[] is filled with the slot values for the specified
+ * ABS_MT code.
+ *
+ * If the request code is not an ABS_MT value, -EINVAL is returned.
+ */
+ #define EVIOCGMTSLOTS(len) _IOC(_IOC_READ, 'E', 0x0a, len)
+
#define EVIOCGKEY(len) _IOC(_IOC_READ, 'E', 0x18, len) /* get global key state */
#define EVIOCGLED(len) _IOC(_IOC_READ, 'E', 0x19, len) /* get all LEDs */
#define EVIOCGSND(len) _IOC(_IOC_READ, 'E', 0x1a, len) /* get all sounds status */
#define EVIOCGRAB _IOW('E', 0x90, int) /* Grab/Release device */
+#define EVIOCSCLOCKID _IOW('E', 0xa0, int) /* Set clockid to be used for timestamps */
+
/*
* Device properties and quirks
*/