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HID: hid-logitech: Add combined pedal support Logitech wheels 

Add support for reporting a combined accelerator/brake axis for wheels
which contain combined data in their HID stream.

This includes DF, MOMO, MOMO2 and DFP.

Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Simon Wood 2016-09-18 10:55:38 -06:00 committed by Jiri Kosina
parent 961af46f8e
commit c832f86eff
3 changed files with 48 additions and 0 deletions
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12
drivers/hid/hid-lg.c
View File

@ -657,6 +657,17 @@ static int lg_event(struct hid_device *hdev, struct hid_field *field,
return 0;
}
static int lg_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *rd, int size)
{
struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
if (drv_data->quirks & LG_FF4)
return lg4ff_raw_event(hdev, report, rd, size, drv_data);
return 0;
}
static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
@ -830,6 +841,7 @@ static struct hid_driver lg_driver = {
.input_mapping = lg_input_mapping,
.input_mapped = lg_input_mapped,
.event = lg_event,
.raw_event = lg_raw_event,
.probe = lg_probe,
.remove = lg_remove,
};

32
drivers/hid/hid-lg4ff.c
View File

@ -329,6 +329,38 @@ int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
}
}
int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *rd, int size, struct lg_drv_data *drv_data)
{
struct lg4ff_device_entry *entry = drv_data->device_props;
if (!entry)
return 0;
/* adjust HID report present combined pedals data */
if (entry->wdata.combine) {
switch (entry->wdata.product_id) {
case USB_DEVICE_ID_LOGITECH_WHEEL:
rd[5] = rd[3];
rd[6] = 0x7F;
return 1;
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
rd[4] = rd[3];
rd[5] = 0x7F;
return 1;
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
rd[5] = rd[4];
rd[6] = 0x7F;
return 1;
default:
return 0;
}
}
return 0;
}
static void lg4ff_init_wheel_data(struct lg4ff_wheel_data * const wdata, const struct lg4ff_wheel *wheel,
const struct lg4ff_multimode_wheel *mmode_wheel,
const u16 real_product_id)

4
drivers/hid/hid-lg4ff.h
View File

@ -6,11 +6,15 @@ extern int lg4ff_no_autoswitch; /* From hid-lg.c */
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);
int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *rd, int size, struct lg_drv_data *drv_data);
int lg4ff_init(struct hid_device *hdev);
int lg4ff_deinit(struct hid_device *hdev);
#else
static inline 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) { return 0; }
static inline int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report,
u8 *rd, int size, struct lg_drv_data *drv_data) { return 0; }
static inline int lg4ff_init(struct hid_device *hdev) { return -1; }
static inline int lg4ff_deinit(struct hid_device *hdev) { return -1; }
#endif