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Commit 560bea30 authored by Simon Wood's avatar Simon Wood Committed by Jiri Kosina
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HID: hid-logitech: Improve Wingman Formula Force GP support 



Move ForceFeedback support for the Formula Force GP into hid-lgff4
and re-write HID descriptor, thus allowing combined pedals or not
as user desires.

Signed-off-by: default avatarSimon Wood <simon@mungewell.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 7363b25a

drivers/hid/hid-lg.c

+58 −1
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ 
#define FV_RDESC_ORIG_SIZE	130

#define MOMO_RDESC_ORIG_SIZE	87

#define MOMO2_RDESC_ORIG_SIZE	87

#define FFG_RDESC_ORIG_SIZE	85



/* Fixed report descriptors for Logitech Driving Force (and Pro)

 * wheel controllers
@@ -334,6 +335,52 @@ static __u8 momo2_rdesc_fixed[] = { 
0xC0                /*  End Collection                      */

};



static __u8 ffg_rdesc_fixed[] = {

0x05, 0x01,         /*  Usage Page (Desktop),               */

0x09, 0x04,         /*  Usage (Joystik),                    */

0xA1, 0x01,         /*  Collection (Application),           */

0xA1, 0x02,         /*      Collection (Logical),           */

0x95, 0x01,         /*          Report Count (1),           */

0x75, 0x0A,         /*          Report Size (10),           */

0x15, 0x00,         /*          Logical Minimum (0),        */

0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */

0x35, 0x00,         /*          Physical Minimum (0),       */

0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),    */

0x09, 0x30,         /*          Usage (X),                  */

0x81, 0x02,         /*          Input (Variable),           */

0x95, 0x06,         /*          Report Count (6),           */

0x75, 0x01,         /*          Report Size (1),            */

0x25, 0x01,         /*          Logical Maximum (1),        */

0x45, 0x01,         /*          Physical Maximum (1),       */

0x05, 0x09,         /*          Usage Page (Button),        */

0x19, 0x01,         /*          Usage Minimum (01h),        */

0x29, 0x06,         /*          Usage Maximum (06h),        */

0x81, 0x02,         /*          Input (Variable),           */

0x95, 0x01,         /*          Report Count (1),           */

0x75, 0x08,         /*          Report Size (8),            */

0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */

0x46, 0xFF, 0x00,   /*          Physical Maximum (255),     */

0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */

0x09, 0x01,         /*          Usage (01h),                */

0x81, 0x02,         /*          Input (Variable),           */

0x05, 0x01,         /*          Usage Page (Desktop),       */

0x81, 0x01,         /*          Input (Constant),           */

0x09, 0x31,         /*          Usage (Y),                  */

0x81, 0x02,         /*          Input (Variable),           */

0x09, 0x32,         /*          Usage (Z),                  */

0x81, 0x02,         /*          Input (Variable),           */

0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */

0x09, 0x01,         /*          Usage (01h),                */

0x81, 0x02,         /*          Input (Variable),           */

0xC0,               /*      End Collection,                 */

0xA1, 0x02,         /*      Collection (Logical),           */

0x09, 0x02,         /*          Usage (02h),                */

0x95, 0x07,         /*          Report Count (7),           */

0x91, 0x02,         /*          Output (Variable),          */

0xC0,               /*      End Collection,                 */

0xC0                /*  End Collection                      */

};



/*

 * Certain Logitech keyboards send in report #3 keys which are far

 * above the logical maximum described in descriptor. This extends
@@ -361,6 +408,15 @@ static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc, 


	switch (hdev->product) {



	case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG:

		if (*rsize == FFG_RDESC_ORIG_SIZE) {

			hid_info(hdev,

				"fixing up Logitech Wingman Formula Force GP report descriptor\n");

			rdesc = ffg_rdesc_fixed;

			*rsize = sizeof(ffg_rdesc_fixed);

		}

		break;



	/* Several wheels report as this id when operating in emulation mode. */

	case USB_DEVICE_ID_LOGITECH_WHEEL:

		if (*rsize == DF_RDESC_ORIG_SIZE) {
@@ -608,6 +664,7 @@ static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi, 
			usage->code == ABS_RZ)) {

		switch (hdev->product) {

		case USB_DEVICE_ID_LOGITECH_G29_WHEEL:

		case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG:

		case USB_DEVICE_ID_LOGITECH_WHEEL:

		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:

		case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
@@ -807,7 +864,7 @@ static const struct hid_device_id lg_devices[] = { 
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL),

		.driver_data = LG_FF4 },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG),

		.driver_data = LG_FF },

		.driver_data = LG_NOGET | LG_FF4 },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),

		.driver_data = LG_FF2 },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),

drivers/hid/hid-lg4ff.c

+2 −0
Original line number Diff line number Diff line
@@ -137,6 +137,7 @@ struct lg4ff_alternate_mode { 
};



static const struct lg4ff_wheel lg4ff_devices[] = {

	{USB_DEVICE_ID_LOGITECH_WINGMAN_FFG, lg4ff_wheel_effects, 40, 180, NULL},

	{USB_DEVICE_ID_LOGITECH_WHEEL,       lg4ff_wheel_effects, 40, 270, NULL},

	{USB_DEVICE_ID_LOGITECH_MOMO_WHEEL,  lg4ff_wheel_effects, 40, 270, NULL},

	{USB_DEVICE_ID_LOGITECH_DFP_WHEEL,   lg4ff_wheel_effects, 40, 900, lg4ff_set_range_dfp},
@@ -345,6 +346,7 @@ int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report, 
			rd[5] = rd[3];

			rd[6] = 0x7F;

			return 1;

		case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG:

		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:

		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:

			rd[4] = rd[3];