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compositor-drm: Load calibration values from udev

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This allows the values to be associated with an specific input device using
udev rules.
This commit is contained in:
Rob Bradford
2012-12-03 19:44:17 +00:00
committed by Kristian Høgsberg
parent ea23b28642
commit f4f58be8df
1 changed files with 23 additions and 0 deletions
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src/compositor-drm.c
+23
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@@ -1737,6 +1737,7 @@ device_added(struct udev_device *udev_device, struct drm_seat *master)
struct evdev_device *device; struct evdev_device *device;
const char *devnode; const char *devnode;
const char *device_seat; const char *device_seat;
const char *calibration_values;
int fd; int fd;
device_seat = udev_device_get_property_value(udev_device, "ID_SEAT"); device_seat = udev_device_get_property_value(udev_device, "ID_SEAT");
@@ -1765,6 +1766,28 @@ device_added(struct udev_device *udev_device, struct drm_seat *master)
return; return;
} }
calibration_values =
udev_device_get_property_value(udev_device,
"WL_CALIBRATION");
if (calibration_values && sscanf(calibration_values,
"%f %f %f %f %f %f",
&device->abs.calibration[0],
&device->abs.calibration[1],
&device->abs.calibration[2],
&device->abs.calibration[3],
&device->abs.calibration[4],
&device->abs.calibration[5]) == 6) {
device->abs.apply_calibration = 1;
weston_log ("Applying calibration: %f %f %f %f %f %f\n",
device->abs.calibration[0],
device->abs.calibration[1],
device->abs.calibration[2],
device->abs.calibration[3],
device->abs.calibration[4],
device->abs.calibration[5]);
}
wl_list_insert(master->devices_list.prev, &device->link); wl_list_insert(master->devices_list.prev, &device->link);
} }