#include <stdio.h>
#include <string.h>
+#include <stdbool.h>
#include <math.h>
#include <sys/types.h>
#include <sys/stat.h>
static int debug = 0;
+_printf_(6,0)
static void log_fn(struct udev *udev, int priority,
const char *file, int line, const char *fn,
const char *format, va_list args)
if (orientation == NULL)
return ORIENTATION_UNDEFINED;
for (i = 0; orientations[i] != NULL; i++) {
- if (strcmp (orientation, orientations[i]) == 0)
+ if (streq (orientation, orientations[i]))
return i;
}
return ORIENTATION_UNDEFINED;
return string_to_orientation(value);
}
-#define SET_AXIS(axis, code_) if (ev[i].code == code_) { if (got_##axis == 0) { axis = ev[i].value; got_##axis = 1; } }
+#define READ_AXIS(axis, var) { memzero(&abs_info, sizeof(abs_info)); r = ioctl(fd, EVIOCGABS(axis), &abs_info); if (r < 0) return; var = abs_info.value; }
/* accelerometers */
static void test_orientation(struct udev *udev,
const char *devpath)
{
OrientationUp old, new;
- int fd, r;
- struct input_event ev[64];
- int got_syn = 0;
- int got_x, got_y, got_z;
+ _cleanup_close_ int fd = -1;
+ struct input_absinfo abs_info;
int x = 0, y = 0, z = 0;
+ int r;
char text[64];
old = get_prev_orientation(dev);
- if ((fd = open(devpath, O_RDONLY)) < 0)
+ fd = open(devpath, O_RDONLY|O_CLOEXEC);
+ if (fd < 0)
return;
- got_x = got_y = got_z = 0;
-
- while (1) {
- int i;
-
- r = read(fd, ev, sizeof(struct input_event) * 64);
-
- if (r < (int) sizeof(struct input_event)) {
- close(fd);
- return;
- }
-
- for (i = 0; i < r / (int) sizeof(struct input_event); i++) {
- if (got_syn == 1) {
- if (ev[i].type == EV_ABS) {
- SET_AXIS(x, ABS_X);
- SET_AXIS(y, ABS_Y);
- SET_AXIS(z, ABS_Z);
- }
- }
- if (ev[i].type == EV_SYN && ev[i].code == SYN_REPORT) {
- got_syn = 1;
- }
- if (got_x && got_y && got_z)
- goto read_dev;
- }
- }
-
-read_dev:
- close(fd);
-
- if (!got_x || !got_y || !got_z)
- return;
+ READ_AXIS(ABS_X, x);
+ READ_AXIS(ABS_Y, y);
+ READ_AXIS(ABS_Z, z);
new = orientation_calc(old, x, y, z);
- snprintf(text, sizeof(text), "ID_INPUT_ACCELEROMETER_ORIENTATION=%s", orientation_to_string(new));
+ snprintf(text, sizeof(text),
+ "ID_INPUT_ACCELEROMETER_ORIENTATION=%s", orientation_to_string(new));
puts(text);
}
char devpath[PATH_MAX];
char *devnode;
- const char *id_path;
struct udev_enumerate *enumerate;
struct udev_list_entry *list_entry;
return 1;
}
- id_path = udev_device_get_property_value(dev, "ID_PATH");
- if (id_path == NULL) {
- fprintf (stderr, "unable to get property ID_PATH for '%s'", devpath);
- return 0;
- }
-
/* Get the children devices and find the devnode */
- /* FIXME: use udev_enumerate_add_match_parent() instead */
devnode = NULL;
enumerate = udev_enumerate_new(udev);
- udev_enumerate_add_match_property(enumerate, "ID_PATH", id_path);
- udev_enumerate_add_match_subsystem(enumerate, "input");
+ udev_enumerate_add_match_parent(enumerate, dev);
udev_enumerate_scan_devices(enumerate);
udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(enumerate)) {
struct udev_device *device;
return 0;
}
- log_debug("opening accelerometer device %s\n", devnode);
+ log_debug("opening accelerometer device %s", devnode);
test_orientation(udev, dev, devnode);
free(devnode);
log_close();