#define G27_REV_MAJ 0x12
#define G27_REV_MIN 0x38
+#define DFP_X_MIN 0
+#define DFP_X_MAX 16383
+#define DFP_PEDAL_MIN 0
+#define DFP_PEDAL_MAX 255
+
#define to_hid_device(pdev) container_of(pdev, struct hid_device, dev)
static void hid_lg4ff_set_range_dfp(struct hid_device *hid, u16 range);
static DEVICE_ATTR(range, S_IRWXU | S_IRWXG | S_IRWXO, lg4ff_range_show, lg4ff_range_store);
struct lg4ff_device_entry {
+ __u32 product_id;
__u16 range;
__u16 min_range;
__u16 max_range;
{G27_REV_MAJ, G27_REV_MIN, &native_g27}, /* G27 */
};
+/* Recalculates X axis value accordingly to currently selected range */
+static __s32 lg4ff_adjust_dfp_x_axis(__s32 value, __u16 range)
+{
+ __u16 max_range;
+ __s32 new_value;
+
+ if (range == 900)
+ return value;
+ else if (range == 200)
+ return value;
+ else if (range < 200)
+ max_range = 200;
+ else
+ max_range = 900;
+
+ new_value = 8192 + mult_frac(value - 8192, max_range, range);
+ if (new_value < 0)
+ return 0;
+ else if (new_value > 16383)
+ return 16383;
+ else
+ return new_value;
+}
+
+int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
+ struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data)
+{
+ struct lg4ff_device_entry *entry = drv_data->device_props;
+ __s32 new_value = 0;
+
+ if (!entry) {
+ hid_err(hid, "Device properties not found");
+ return 0;
+ }
+
+ switch (entry->product_id) {
+ case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
+ switch (usage->code) {
+ case ABS_X:
+ new_value = lg4ff_adjust_dfp_x_axis(value, entry->range);
+ input_event(field->hidinput->input, usage->type, usage->code, new_value);
+ return 1;
+ default:
+ return 0;
+ }
+ default:
+ return 0;
+ }
+}
+
static int hid_lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
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);
+ __s32 *value = report->field[0]->value;
int x;
-#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
+#define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0)
switch (effect->type) {
case FF_CONSTANT:
x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */
CLAMP(x);
- report->field[0]->value[0] = 0x11; /* Slot 1 */
- report->field[0]->value[1] = 0x08;
- report->field[0]->value[2] = x;
- report->field[0]->value[3] = 0x80;
- report->field[0]->value[4] = 0x00;
- report->field[0]->value[5] = 0x00;
- report->field[0]->value[6] = 0x00;
+ value[0] = 0x11; /* Slot 1 */
+ value[1] = 0x08;
+ value[2] = x;
+ value[3] = 0x80;
+ value[4] = 0x00;
+ value[5] = 0x00;
+ value[6] = 0x00;
usbhid_submit_report(hid, report, USB_DIR_OUT);
break;
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);
+ __s32 *value = report->field[0]->value;
- report->field[0]->value[0] = 0xfe;
- report->field[0]->value[1] = 0x0d;
- report->field[0]->value[2] = magnitude >> 13;
- report->field[0]->value[3] = magnitude >> 13;
- report->field[0]->value[4] = magnitude >> 8;
- report->field[0]->value[5] = 0x00;
- report->field[0]->value[6] = 0x00;
+ value[0] = 0xfe;
+ value[1] = 0x0d;
+ value[2] = magnitude >> 13;
+ value[3] = magnitude >> 13;
+ value[4] = magnitude >> 8;
+ value[5] = 0x00;
+ value[6] = 0x00;
usbhid_submit_report(hid, report, USB_DIR_OUT);
}
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);
+ __s32 *value = report->field[0]->value;
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;
+ value[0] = 0xfe;
+ value[1] = 0x03;
+ value[2] = magnitude >> 14;
+ value[3] = magnitude >> 14;
+ value[4] = magnitude;
+ value[5] = 0x00;
+ value[6] = 0x00;
usbhid_submit_report(hid, report, USB_DIR_OUT);
}
{
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);
+ __s32 *value = report->field[0]->value;
+
dbg_hid("G25/G27/DFGT: setting range to %u\n", range);
- report->field[0]->value[0] = 0xf8;
- report->field[0]->value[1] = 0x81;
- report->field[0]->value[2] = range & 0x00ff;
- report->field[0]->value[3] = (range & 0xff00) >> 8;
- report->field[0]->value[4] = 0x00;
- report->field[0]->value[5] = 0x00;
- report->field[0]->value[6] = 0x00;
+ value[0] = 0xf8;
+ value[1] = 0x81;
+ value[2] = range & 0x00ff;
+ value[3] = (range & 0xff00) >> 8;
+ value[4] = 0x00;
+ value[5] = 0x00;
+ value[6] = 0x00;
usbhid_submit_report(hid, report, USB_DIR_OUT);
}
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);
int start_left, start_right, full_range;
+ __s32 *value = report->field[0]->value;
+
dbg_hid("Driving Force Pro: setting range to %u\n", range);
/* Prepare "coarse" limit command */
- report->field[0]->value[0] = 0xf8;
- report->field[0]->value[1] = 0x00; /* Set later */
- report->field[0]->value[2] = 0x00;
- report->field[0]->value[3] = 0x00;
- report->field[0]->value[4] = 0x00;
- report->field[0]->value[5] = 0x00;
- report->field[0]->value[6] = 0x00;
+ value[0] = 0xf8;
+ value[1] = 0x00; /* Set later */
+ value[2] = 0x00;
+ value[3] = 0x00;
+ value[4] = 0x00;
+ value[5] = 0x00;
+ value[6] = 0x00;
if (range > 200) {
report->field[0]->value[1] = 0x03;
usbhid_submit_report(hid, report, USB_DIR_OUT);
/* Prepare "fine" limit command */
- report->field[0]->value[0] = 0x81;
- report->field[0]->value[1] = 0x0b;
- report->field[0]->value[2] = 0x00;
- report->field[0]->value[3] = 0x00;
- report->field[0]->value[4] = 0x00;
- report->field[0]->value[5] = 0x00;
- report->field[0]->value[6] = 0x00;
+ value[0] = 0x81;
+ value[1] = 0x0b;
+ value[2] = 0x00;
+ value[3] = 0x00;
+ value[4] = 0x00;
+ value[5] = 0x00;
+ value[6] = 0x00;
if (range == 200 || range == 900) { /* Do not apply any fine limit */
usbhid_submit_report(hid, report, USB_DIR_OUT);
start_left = (((full_range - range + 1) * 2047) / full_range);
start_right = 0xfff - start_left;
- report->field[0]->value[2] = start_left >> 4;
- report->field[0]->value[3] = start_right >> 4;
- report->field[0]->value[4] = 0xff;
- report->field[0]->value[5] = (start_right & 0xe) << 4 | (start_left & 0xe);
- report->field[0]->value[6] = 0xff;
+ value[2] = start_left >> 4;
+ value[3] = start_right >> 4;
+ value[4] = 0xff;
+ value[5] = (start_right & 0xe) << 4 | (start_left & 0xe);
+ value[6] = 0xff;
usbhid_submit_report(hid, report, USB_DIR_OUT);
}
{
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);
-
- report->field[0]->value[0] = 0xf8;
- report->field[0]->value[1] = 0x12;
- report->field[0]->value[2] = leds;
- report->field[0]->value[3] = 0x00;
- report->field[0]->value[4] = 0x00;
- report->field[0]->value[5] = 0x00;
- report->field[0]->value[6] = 0x00;
+ __s32 *value = report->field[0]->value;
+
+ value[0] = 0xf8;
+ value[1] = 0x12;
+ value[2] = leds;
+ value[3] = 0x00;
+ value[4] = 0x00;
+ value[5] = 0x00;
+ value[6] = 0x00;
usbhid_submit_report(hid, report, USB_DIR_OUT);
}
/* 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 */
+ 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;
}
drv_data->device_props = entry;
+ entry->product_id = lg4ff_devices[i].product_id;
entry->min_range = lg4ff_devices[i].min_range;
entry->max_range = lg4ff_devices[i].max_range;
entry->set_range = lg4ff_devices[i].set_range;
return error;
dbg_hid("sysfs interface created\n");
+ /* Set default axes parameters */
+ switch (lg4ff_devices[i].product_id) {
+ case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
+ dbg_hid("Setting axes parameters for Driving Force Pro\n");
+ input_set_abs_params(dev, ABS_X, DFP_X_MIN, DFP_X_MAX, 0, 0);
+ input_set_abs_params(dev, ABS_Y, DFP_PEDAL_MIN, DFP_PEDAL_MAX, 0, 0);
+ input_set_abs_params(dev, ABS_RZ, DFP_PEDAL_MIN, DFP_PEDAL_MAX, 0, 0);
+ break;
+ default:
+ break;
+ }
+
/* Set the maximum range to start with */
entry->range = entry->max_range;
if (entry->set_range != NULL)
return 0;
}
+
+
int lg4ff_deinit(struct hid_device *hid)
{
struct lg4ff_device_entry *entry;
projects / ~andy / linux / blobdiff