* OF THIS SOFTWARE.
*/
-#ifndef libevdev_INT_H
-#define libevdev_INT_H
+#ifndef LIBEVDEV_INT_H
+#define LIBEVDEV_INT_H
#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <errno.h>
#include "libevdev.h"
#define LONG_BITS (sizeof(long) * 8)
#define ABS_MT_MIN ABS_MT_SLOT
#define ABS_MT_MAX ABS_MT_TOOL_Y
#define ABS_MT_CNT (ABS_MT_MAX - ABS_MT_MIN + 1)
+#define LIBEVDEV_EXPORT __attribute__((visibility("default")))
+#define LIBEVDEV_PRINTF(_format, _args) __attribute__ ((format (printf, _format, _args)))
+#define ALIAS(_to) __attribute__((alias(#_to)))
#undef min
#undef max
_a > _b ? _a : _b; \
})
+/**
+ * Sync state machine:
+ * default state: SYNC_NONE
+ *
+ * SYNC_NONE → SYN_DROPPED or forced sync → SYNC_NEEDED
+ * SYNC_NEEDED → libevdev_next_event(LIBEVDEV_READ_FLAG_SYNC) → SYNC_IN_PROGRESS
+ * SYNC_NEEDED → libevdev_next_event(LIBEVDEV_READ_FLAG_SYNC_NONE) → SYNC_NONE
+ * SYNC_IN_PROGRESS → libevdev_next_event(LIBEVDEV_READ_FLAG_SYNC_NONE) → SYNC_NONE
+ * SYNC_IN_PROGRESS → no sync events left → SYNC_NONE
+ *
+ */
+enum SyncState {
+ SYNC_NONE,
+ SYNC_NEEDED,
+ SYNC_IN_PROGRESS,
+};
+
struct libevdev {
int fd;
- libevdev_log_func_t log;
-
- char name[MAX_NAME];
+ bool initialized;
+ char *name;
+ char *phys;
+ char *uniq;
struct input_id ids;
+ int driver_version;
unsigned long bits[NLONGS(EV_CNT)];
unsigned long props[NLONGS(INPUT_PROP_CNT)];
unsigned long key_bits[NLONGS(KEY_CNT)];
unsigned long rel_bits[NLONGS(REL_CNT)];
unsigned long abs_bits[NLONGS(ABS_CNT)];
unsigned long led_bits[NLONGS(LED_CNT)];
+ unsigned long msc_bits[NLONGS(MSC_CNT)];
+ unsigned long sw_bits[NLONGS(SW_CNT)];
+ unsigned long rep_bits[NLONGS(REP_CNT)]; /* convenience, always 1 */
+ unsigned long ff_bits[NLONGS(FF_CNT)];
+ unsigned long snd_bits[NLONGS(SND_CNT)];
unsigned long key_values[NLONGS(KEY_CNT)];
+ unsigned long led_values[NLONGS(LED_CNT)];
+ unsigned long sw_values[NLONGS(SW_CNT)];
struct input_absinfo abs_info[ABS_CNT];
- unsigned int mt_slot_vals[MAX_SLOTS][ABS_MT_CNT];
+ int mt_slot_vals[MAX_SLOTS][ABS_MT_CNT];
int num_slots; /**< valid slots in mt_slot_vals */
int current_slot;
+ int rep_values[REP_CNT];
- int need_sync;
- int grabbed;
+ enum SyncState sync_state;
+ enum libevdev_grab_mode grabbed;
struct input_event *queue;
size_t queue_size; /**< size of queue in elements */
size_t queue_next; /**< next event index */
size_t queue_nsync; /**< number of sync events */
+
+ struct timeval last_event_time;
};
+struct logdata {
+ enum libevdev_log_priority priority; /** minimum logging priority */
+ libevdev_log_func_t handler; /** handler function */
+ void *userdata; /** user-defined data pointer */
+};
+extern struct logdata log_data;
+
+#define log_msg_cond(priority, ...) \
+ do { \
+ if (libevdev_get_log_priority() >= priority) \
+ log_msg(priority, log_data.userdata, __FILE__, __LINE__, __func__, __VA_ARGS__); \
+ } while(0)
+
+#define log_error(...) log_msg_cond(LIBEVDEV_LOG_ERROR, __VA_ARGS__)
+#define log_info(...) log_msg_cond(LIBEVDEV_LOG_INFO, __VA_ARGS__)
+#define log_dbg(...) log_msg_cond(LIBEVDEV_LOG_DEBUG, __VA_ARGS__)
+#define log_bug(...) log_msg_cond(LIBEVDEV_LOG_ERROR, "BUG: "__VA_ARGS__)
+
+extern void
+log_msg(enum libevdev_log_priority priority,
+ void *data,
+ const char *file, int line, const char *func,
+ const char *format, ...) LIBEVDEV_PRINTF(6, 7);
+
/**
* @return a pointer to the next element in the queue, or NULL if the queue
* is full.
static inline int
queue_peek(struct libevdev *dev, size_t idx, struct input_event *ev)
{
- if (idx > dev->queue_next)
+ if (dev->queue_next == 0 || idx > dev->queue_next)
return 1;
*ev = dev->queue[idx];
return 0;
* @return The number of elements in ev.
*/
static inline int
-queue_shift_multiple(struct libevdev *dev, int n, struct input_event *ev)
+queue_shift_multiple(struct libevdev *dev, size_t n, struct input_event *ev)
{
- int i;
+ size_t i;
if (dev->queue_next == 0)
return 0;
}
static inline int
-queue_alloc(struct libevdev *dev, int size)
+queue_alloc(struct libevdev *dev, size_t size)
{
+ if (size == 0)
+ return -ENOMEM;
+
dev->queue = calloc(size, sizeof(struct input_event));
if (!dev->queue)
- return -ENOSPC;
+ return -ENOMEM;
dev->queue_size = size;
dev->queue_next = 0;
dev->queue_next = 0;
}
-static inline int
+static inline size_t
queue_num_elements(struct libevdev *dev)
{
return dev->queue_next;
}
-static inline int
+static inline size_t
queue_size(struct libevdev *dev)
{
return dev->queue_size;
}
-static inline int
+static inline size_t
queue_num_free_elements(struct libevdev *dev)
{
- return dev->queue_size - dev->queue_next - 1;
+ if (dev->queue_size == 0)
+ return 0;
+
+ return dev->queue_size - dev->queue_next;
}
static inline struct input_event *
queue_next_element(struct libevdev *dev)
{
+ if (dev->queue_next == dev->queue_size)
+ return NULL;
+
return &dev->queue[dev->queue_next];
}
static inline int
-queue_set_num_elements(struct libevdev *dev, int nelem)
+queue_set_num_elements(struct libevdev *dev, size_t nelem)
{
if (nelem > dev->queue_size)
return 1;