#define LONG(x) ((x)/BITS_PER_LONG)
#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
-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 (debug) {
- fprintf(stderr, "%s: ", fn);
- vfprintf(stderr, format, args);
- } else {
- vsyslog(priority, format, args);
- }
-}
-
typedef enum {
ORIENTATION_UNDEFINED,
ORIENTATION_NORMAL,
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 = true; } }
+#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,
{
OrientationUp old, new;
_cleanup_close_ int fd = -1;
- struct input_event ev[64];
- bool got_syn = false;
- bool got_x = false, got_y = false, got_z = false;
+ struct input_absinfo abs_info;
int x = 0, y = 0, z = 0;
+ int r;
char text[64];
old = get_prev_orientation(dev);
- fd = open(devpath, O_RDONLY);
+ fd = open(devpath, O_RDONLY|O_CLOEXEC);
if (fd < 0)
return;
- while (1) {
- int i, r;
-
- r = read(fd, ev, sizeof(struct input_event) * 64);
-
- if (r < (int) sizeof(struct input_event))
- return;
-
- for (i = 0; i < r / (int) sizeof(struct input_event); i++) {
- if (got_syn) {
- 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 = true;
- if (got_x && got_y && got_z)
- goto read_dev;
- }
- }
+ READ_AXIS(ABS_X, x);
+ READ_AXIS(ABS_Y, y);
+ READ_AXIS(ABS_Z, z);
-read_dev:
new = orientation_calc(old, x, y, z);
snprintf(text, sizeof(text),
"ID_INPUT_ACCELEROMETER_ORIENTATION=%s", orientation_to_string(new));
puts(text);
}
-static void help(void)
-{
- printf("Usage: accelerometer [options] <device path>\n"
- " --debug debug to stderr\n"
- " --help print this help text\n\n");
+static void help(void) {
+
+ printf("%s [options] <device path>\n\n"
+ "Accelerometer device identification.\n\n"
+ " -h --help Print this message\n"
+ " -d --debug Debug to stderr\n"
+ , program_invocation_short_name);
}
int main (int argc, char** argv)
struct udev_enumerate *enumerate;
struct udev_list_entry *list_entry;
+ log_parse_environment();
+ log_open();
+
udev = udev_new();
if (udev == NULL)
return 1;
- log_open();
- udev_set_log_fn(udev, log_fn);
-
/* CLI argument parsing */
while (1) {
int option;
- option = getopt_long(argc, argv, "dxh", options, NULL);
+ option = getopt_long(argc, argv, "dh", options, NULL);
if (option == -1)
break;
switch (option) {
case 'd':
- debug = 1;
+ log_set_target(LOG_TARGET_CONSOLE);
log_set_max_level(LOG_DEBUG);
- udev_set_log_priority(udev, LOG_DEBUG);
+ log_open();
break;
case 'h':
help();