@@ -157,7 +157,9 @@ static int hid_lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *e
return 0;
}
-static void hid_lg4ff_set_autocenter(struct input_dev *dev, u16 magnitude)
+/* Sends default autocentering command compatible with
+ * all wheels except Formula Force EX */
+static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude)
{
struct hid_device *hid = input_get_drvdata(dev);
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
@@ -174,6 +176,26 @@ static void hid_lg4ff_set_autocenter(struct input_dev *dev, u16 magnitude)
usbhid_submit_report(hid, report, USB_DIR_OUT);
}
+/* Sends autocentering command compatible with Formula Force EX */
+static void hid_lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+ magnitude = magnitude * 90 / 65535;
+
+
+ report->field[0]->value[0] = 0xfe;
+ report->field[0]->value[1] = 0x03;
+ report->field[0]->value[2] = magnitude >> 14;
+ report->field[0]->value[3] = magnitude >> 14;
+ report->field[0]->value[4] = magnitude;
+ report->field[0]->value[5] = 0x00;
+ report->field[0]->value[6] = 0x00;
+
+ usbhid_submit_report(hid, report, USB_DIR_OUT);
+}
+
/* Sends command to set range compatible with G25/G27/Driving Force GT */
static void hid_lg4ff_set_range_g25(struct hid_device *hid, u16 range)
{
@@ -390,8 +412,16 @@ int lg4ff_init(struct hid_device *hid)
if (error)
return error;
- if (test_bit(FF_AUTOCENTER, dev->ffbit))
- dev->ff->set_autocenter = hid_lg4ff_set_autocenter;
+ /* Check if autocentering is available and
+ * set the centering force to zero by default */
+ if (test_bit(FF_AUTOCENTER, dev->ffbit)) {
+ if(rev_maj == FFEX_REV_MAJ && rev_min == FFEX_REV_MIN) /* Formula Force EX expects different autocentering
command */
+ dev->ff->set_autocenter = hid_lg4ff_set_autocenter_ffex;
+ else
+ dev->ff->set_autocenter = hid_lg4ff_set_autocenter_default;
+
+ dev->ff->set_autocenter(dev, 0);
+ }
/* Initialize device_list if this is the first device to handle by lg4ff */
According to our USB traffic sniffs the Logitech driver for Windows sends Formula Force EX wheel a different command to set the autocenering force. FFEX will accept the standard command used by the rest of the wheels, but it won't set the centering force properly. Signed-off-by: Michal Malý <madcatxster@gmail.com> --- if (!list_inited) { -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html