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Commit 29fae1c8 authored by Simon Wood's avatar Simon Wood Committed by Jiri Kosina
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HID: logitech: Add support for G29 



At present the G29 is mis-identified as a DFGT, this patch ensures
that the wheel is correctly detected and allows setting the LEDs and
turning range via the '/sys' interface.

This wheel can also emulate other types of Logitech wheels.

Signed-off-by: default avatarSimon Wood <simon@mungewell.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent bbec1bd0

drivers/hid/hid-core.c

+1 −0
Original line number Diff line number Diff line
@@ -1896,6 +1896,7 @@ static const struct hid_device_id hid_have_special_driver[] = { 
	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G29_WHEEL) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },

drivers/hid/hid-lg.c

+9 −0
Original line number Diff line number Diff line
@@ -620,6 +620,7 @@ static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi, 
			usage->code == ABS_Y || usage->code == ABS_Z ||

			usage->code == ABS_RZ)) {

		switch (hdev->product) {

		case USB_DEVICE_ID_LOGITECH_G29_WHEEL:

		case USB_DEVICE_ID_LOGITECH_WHEEL:

		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:

		case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
@@ -658,10 +659,18 @@ static int lg_event(struct hid_device *hdev, struct hid_field *field, 


static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)

{

	struct usb_interface *iface = to_usb_interface(hdev->dev.parent);

	__u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber;

	unsigned int connect_mask = HID_CONNECT_DEFAULT;

	struct lg_drv_data *drv_data;

	int ret;



	/* Only work with the 1st interface (G29 presents multiple) */

	if (iface_num != 0) {

		dbg_hid("%s: ignoring ifnum %d\n", __func__, iface_num);

		return -ENODEV;

	}



	drv_data = kzalloc(sizeof(struct lg_drv_data), GFP_KERNEL);

	if (!drv_data) {

		hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");

drivers/hid/hid-lg4ff.c

+53 −4
Original line number Diff line number Diff line
@@ -45,7 +45,8 @@ 
#define LG4FF_MODE_G25_IDX 3

#define LG4FF_MODE_DFGT_IDX 4

#define LG4FF_MODE_G27_IDX 5

#define LG4FF_MODE_MAX_IDX 6

#define LG4FF_MODE_G29_IDX 6

#define LG4FF_MODE_MAX_IDX 7



#define LG4FF_MODE_NATIVE BIT(LG4FF_MODE_NATIVE_IDX)

#define LG4FF_MODE_DFEX BIT(LG4FF_MODE_DFEX_IDX)
@@ -53,6 +54,7 @@ 
#define LG4FF_MODE_G25 BIT(LG4FF_MODE_G25_IDX)

#define LG4FF_MODE_DFGT BIT(LG4FF_MODE_DFGT_IDX)

#define LG4FF_MODE_G27 BIT(LG4FF_MODE_G27_IDX)

#define LG4FF_MODE_G29 BIT(LG4FF_MODE_G29_IDX)



#define LG4FF_DFEX_TAG "DF-EX"

#define LG4FF_DFEX_NAME "Driving Force / Formula EX"
@@ -62,6 +64,8 @@ 
#define LG4FF_G25_NAME "G25 Racing Wheel"

#define LG4FF_G27_TAG "G27"

#define LG4FF_G27_NAME "G27 Racing Wheel"

#define LG4FF_G29_TAG "G29"

#define LG4FF_G29_NAME "G29 Racing Wheel"

#define LG4FF_DFGT_TAG "DFGT"

#define LG4FF_DFGT_NAME "Driving Force GT"
@@ -140,6 +144,7 @@ static const struct lg4ff_wheel lg4ff_devices[] = { 
	{USB_DEVICE_ID_LOGITECH_G25_WHEEL,   lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},

	{USB_DEVICE_ID_LOGITECH_DFGT_WHEEL,  lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},

	{USB_DEVICE_ID_LOGITECH_G27_WHEEL,   lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},

	{USB_DEVICE_ID_LOGITECH_G29_WHEEL,   lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25},

	{USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL},

	{USB_DEVICE_ID_LOGITECH_WII_WHEEL,   lg4ff_wheel_effects, 40, 270, NULL}

};
@@ -157,6 +162,9 @@ static const struct lg4ff_multimode_wheel lg4ff_multimode_wheels[] = { 
	{USB_DEVICE_ID_LOGITECH_G27_WHEEL,

	 LG4FF_MODE_NATIVE | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,

	 LG4FF_G27_TAG, LG4FF_G27_NAME},

	{USB_DEVICE_ID_LOGITECH_G29_WHEEL,

	 LG4FF_MODE_NATIVE | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,

	 LG4FF_G29_TAG, LG4FF_G29_NAME},

};



static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = {
@@ -165,7 +173,8 @@ static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = { 
	[LG4FF_MODE_DFP_IDX] = {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, LG4FF_DFP_TAG, LG4FF_DFP_NAME},

	[LG4FF_MODE_G25_IDX] = {USB_DEVICE_ID_LOGITECH_G25_WHEEL, LG4FF_G25_TAG, LG4FF_G25_NAME},

	[LG4FF_MODE_DFGT_IDX] = {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, LG4FF_DFGT_TAG, LG4FF_DFGT_NAME},

	[LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME}

	[LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME},

	[LG4FF_MODE_G29_IDX] = {USB_DEVICE_ID_LOGITECH_G29_WHEEL, LG4FF_G29_TAG, LG4FF_G29_NAME},

};



/* Multimode wheel identificators */
@@ -197,8 +206,24 @@ static const struct lg4ff_wheel_ident_info lg4ff_dfgt_ident_info = { 
	USB_DEVICE_ID_LOGITECH_DFGT_WHEEL

};



static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info = {

	LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,

	0xfff8,

	0x1350,

	USB_DEVICE_ID_LOGITECH_G29_WHEEL

};



static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info2 = {

	LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX,

	0xff00,

	0x8900,

	USB_DEVICE_ID_LOGITECH_G29_WHEEL

};



/* Multimode wheel identification checklists */

static const struct lg4ff_wheel_ident_info *lg4ff_main_checklist[] = {

	&lg4ff_g29_ident_info,

	&lg4ff_g29_ident_info2,

	&lg4ff_dfgt_ident_info,

	&lg4ff_g27_ident_info,

	&lg4ff_g25_ident_info,
@@ -237,6 +262,12 @@ static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g27 = { 
	 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00}	/* Switch mode to G27 with detach */

};



static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g29 = {

	2,

	{0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,	/* Revert mode upon USB reset */

	 0xf8, 0x09, 0x05, 0x01, 0x01, 0x00, 0x00}	/* Switch mode to G29 with detach */

};



/* EXT_CMD1 - Understood by DFP, G25, G27 and DFGT */

static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext01_dfp = {

	1,
@@ -650,6 +681,23 @@ static const struct lg4ff_compat_mode_switch *lg4ff_get_mode_switch_command(cons 
			return NULL;

		}

		break;

	case USB_DEVICE_ID_LOGITECH_G29_WHEEL:

		switch (target_product_id) {

		case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:

			return &lg4ff_mode_switch_ext09_dfp;

		case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:

			return &lg4ff_mode_switch_ext09_dfgt;

		case USB_DEVICE_ID_LOGITECH_G25_WHEEL:

			return &lg4ff_mode_switch_ext09_g25;

		case USB_DEVICE_ID_LOGITECH_G27_WHEEL:

			return &lg4ff_mode_switch_ext09_g27;

		case USB_DEVICE_ID_LOGITECH_G29_WHEEL:

			return &lg4ff_mode_switch_ext09_g29;

		/* G29 can only be switched to DF-EX, DFP, DFGT, G25, G27 or its native mode */

		default:

			return NULL;

		}

		break;

	case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL:

		switch (target_product_id) {

		case USB_DEVICE_ID_LOGITECH_WHEEL:
@@ -1232,12 +1280,13 @@ int lg4ff_init(struct hid_device *hid) 
		entry->wdata.set_range(hid, entry->wdata.range);



#ifdef CONFIG_LEDS_CLASS

	/* register led subsystem - G27 only */

	/* register led subsystem - G27/G29 only */

	entry->wdata.led_state = 0;

	for (j = 0; j < 5; j++)

		entry->wdata.led[j] = NULL;



	if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL) {

	if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL ||

			lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G29_WHEEL) {

		struct led_classdev *led;

		size_t name_sz;

		char *name;