[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / drivers / hid / hid-tmff.c

/*
 * Force feedback support for various HID compliant devices by ThrustMaster:
 *    ThrustMaster FireStorm Dual Power 2
 * and possibly others whose device ids haven't been added.
 *
 *  Modified to support ThrustMaster devices by Zinx Verituse
 *  on 2003-01-25 from the Logitech force feedback driver,
 *  which is by Johann Deneux.
 *
 *  Copyright (c) 2003 Zinx Verituse <zinx@epicsol.org>
 *  Copyright (c) 2002 Johann Deneux
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/hid.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/module.h>

#include "hid-ids.h"

static const signed short ff_rumble[] = {
	FF_RUMBLE,
	-1
};

static const signed short ff_joystick[] = {
	FF_CONSTANT,
	-1
};

#ifdef CONFIG_THRUSTMASTER_FF
#include "usbhid/usbhid.h"

/* Usages for thrustmaster devices I know about */
#define THRUSTMASTER_USAGE_FF	(HID_UP_GENDESK | 0xbb)

struct tmff_device {
	struct hid_report *report;
	struct hid_field *ff_field;
};

/* Changes values from 0 to 0xffff into values from minimum to maximum */
static inline int tmff_scale_u16(unsigned int in, int minimum, int maximum)
{
	int ret;

	ret = (in * (maximum - minimum) / 0xffff) + minimum;
	if (ret < minimum)
		return minimum;
	if (ret > maximum)
		return maximum;
	return ret;
}

/* Changes values from -0x80 to 0x7f into values from minimum to maximum */
static inline int tmff_scale_s8(int in, int minimum, int maximum)
{
	int ret;

	ret = (((in + 0x80) * (maximum - minimum)) / 0xff) + minimum;
	if (ret < minimum)
		return minimum;
	if (ret > maximum)
		return maximum;
	return ret;
}

static int tmff_play(struct input_dev *dev, void *data,
		struct ff_effect *effect)
{
	struct hid_device *hid = input_get_drvdata(dev);
	struct tmff_device *tmff = data;
	struct hid_field *ff_field = tmff->ff_field;
	int x, y;
	int left, right;	/* Rumbling */

	switch (effect->type) {
	case FF_CONSTANT:
		x = tmff_scale_s8(effect->u.ramp.start_level,
					ff_field->logical_minimum,
					ff_field->logical_maximum);
		y = tmff_scale_s8(effect->u.ramp.end_level,
					ff_field->logical_minimum,
					ff_field->logical_maximum);

		dbg_hid("(x, y)=(%04x, %04x)\n", x, y);
		ff_field->value[0] = x;
		ff_field->value[1] = y;
		usbhid_submit_report(hid, tmff->report, USB_DIR_OUT);
		break;

	case FF_RUMBLE:
		left = tmff_scale_u16(effect->u.rumble.weak_magnitude,
					ff_field->logical_minimum,
					ff_field->logical_maximum);
		right = tmff_scale_u16(effect->u.rumble.strong_magnitude,
					ff_field->logical_minimum,
					ff_field->logical_maximum);

		dbg_hid("(left,right)=(%08x, %08x)\n", left, right);
		ff_field->value[0] = left;
		ff_field->value[1] = right;
		usbhid_submit_report(hid, tmff->report, USB_DIR_OUT);
		break;
	}
	return 0;
}

static int tmff_init(struct hid_device *hid, const signed short *ff_bits)
{
	struct tmff_device *tmff;
	struct hid_report *report;
	struct list_head *report_list;
	struct hid_input *hidinput = list_entry(hid->inputs.next,
							struct hid_input, list);
	struct input_dev *input_dev = hidinput->input;
	int error;
	int i;

	tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
	if (!tmff)
		return -ENOMEM;

	/* Find the report to use */
	report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
	list_for_each_entry(report, report_list, list) {
		int fieldnum;

		for (fieldnum = 0; fieldnum < report->maxfield; ++fieldnum) {
			struct hid_field *field = report->field[fieldnum];

			if (field->maxusage <= 0)
				continue;

			switch (field->usage[0].hid) {
			case THRUSTMASTER_USAGE_FF:
				if (field->report_count < 2) {
					hid_warn(hid, "ignoring FF field with report_count < 2\n");
					continue;
				}

				if (field->logical_maximum ==
						field->logical_minimum) {
					hid_warn(hid, "ignoring FF field with logical_maximum == logical_minimum\n");
					continue;
				}

				if (tmff->report && tmff->report != report) {
					hid_warn(hid, "ignoring FF field in other report\n");
					continue;
				}

				if (tmff->ff_field && tmff->ff_field != field) {
					hid_warn(hid, "ignoring duplicate FF field\n");
					continue;
				}

				tmff->report = report;
				tmff->ff_field = field;

				for (i = 0; ff_bits[i] >= 0; i++)
					set_bit(ff_bits[i], input_dev->ffbit);

				break;

			default:
				hid_warn(hid, "ignoring unknown output usage %08x\n",
					 field->usage[0].hid);
				continue;
			}
		}
	}

	if (!tmff->report) {
		hid_err(hid, "can't find FF field in output reports\n");
		error = -ENODEV;
		goto fail;
	}

	error = input_ff_create_memless(input_dev, tmff, tmff_play);
	if (error)
		goto fail;

	hid_info(hid, "force feedback for ThrustMaster devices by Zinx Verituse <zinx@epicsol.org>\n");
	return 0;

fail:
	kfree(tmff);
	return error;
}
#else
static inline int tmff_init(struct hid_device *hid, const signed short *ff_bits)
{
	return 0;
}
#endif

static int tm_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
	int ret;

	ret = hid_parse(hdev);
	if (ret) {
		hid_err(hdev, "parse failed\n");
		goto err;
	}

	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
	if (ret) {
		hid_err(hdev, "hw start failed\n");
		goto err;
	}

	tmff_init(hdev, (void *)id->driver_data);

	return 0;
err:
	return ret;
}

static const struct hid_device_id tm_devices[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300),
		.driver_data = (unsigned long)ff_rumble },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304),   /* FireStorm Dual Power 2 (and 3) */
		.driver_data = (unsigned long)ff_rumble },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323),   /* Dual Trigger 3-in-1 (PC Mode) */
		.driver_data = (unsigned long)ff_rumble },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324),   /* Dual Trigger 3-in-1 (PS3 Mode) */
		.driver_data = (unsigned long)ff_rumble },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651),	/* FGT Rumble Force Wheel */
		.driver_data = (unsigned long)ff_rumble },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653),	/* RGT Force Feedback CLUTCH Raging Wheel */
		.driver_data = (unsigned long)ff_joystick },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654),	/* FGT Force Feedback Wheel */
		.driver_data = (unsigned long)ff_joystick },
	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a),	/* F430 Force Feedback Wheel */
		.driver_data = (unsigned long)ff_joystick },
	{ }
};
MODULE_DEVICE_TABLE(hid, tm_devices);

static struct hid_driver tm_driver = {
	.name = "thrustmaster",
	.id_table = tm_devices,
	.probe = tm_probe,
};

static int __init tm_init(void)
{
	return hid_register_driver(&tm_driver);
}

static void __exit tm_exit(void)
{
	hid_unregister_driver(&tm_driver);
}

module_init(tm_init);
module_exit(tm_exit);
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Force feedback support for various HID compliant devices by ThrustMaster:
	3	* ThrustMaster FireStorm Dual Power 2
	4	* and possibly others whose device ids haven't been added.
	5	*
	6	* Modified to support ThrustMaster devices by Zinx Verituse
	7	* on 2003-01-25 from the Logitech force feedback driver,
	8	* which is by Johann Deneux.
	9	*
	10	* Copyright (c) 2003 Zinx Verituse <zinx@epicsol.org>
	11	* Copyright (c) 2002 Johann Deneux
	12	*/
	13
	14	/*
	15	* This program is free software; you can redistribute it and/or modify
	16	* it under the terms of the GNU General Public License as published by
	17	* the Free Software Foundation; either version 2 of the License, or
	18	* (at your option) any later version.
	19	*
	20	* This program is distributed in the hope that it will be useful,
	21	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	22	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	23	* GNU General Public License for more details.
	24	*
	25	* You should have received a copy of the GNU General Public License
	26	* along with this program; if not, write to the Free Software
	27	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	28	*/
	29
10e41a71	30	#include <linux/hid.h>
1da177e4	31	#include <linux/input.h>
5a0e3ad6	32	#include <linux/slab.h>
1da177e4	33	#include <linux/usb.h>
8f86a2c3	34	#include <linux/module.h>
1da177e4	35
10e41a71 JS	36	#include "hid-ids.h"
10e41a71 JS	37
b27c9590 DT	38	static const signed short ff_rumble[] = {
	39	FF_RUMBLE,
	40	-1
	41	};
	42
	43	static const signed short ff_joystick[] = {
	44	FF_CONSTANT,
	45	-1
	46	};
	47
0f6f4319 JK	48	#ifdef CONFIG_THRUSTMASTER_FF
	49	#include "usbhid/usbhid.h"
	50
	51	/* Usages for thrustmaster devices I know about */
	52	#define THRUSTMASTER_USAGE_FF (HID_UP_GENDESK \| 0xbb)
	53
1da177e4	54	struct tmff_device {
1da177e4	55	struct hid_report *report;
b27c9590	56	struct hid_field *ff_field;
dc76c912	57	};
1da177e4	58
dc76c912	59	/* Changes values from 0 to 0xffff into values from minimum to maximum */
10e41a71	60	static inline int tmff_scale_u16(unsigned int in, int minimum, int maximum)
dc76c912 AH	61	{
dc76c912 AH	62	int ret;
1da177e4	63
dc76c912 AH	64	ret = (in * (maximum - minimum) / 0xffff) + minimum;
	65	if (ret < minimum)
	66	return minimum;
	67	if (ret > maximum)
	68	return maximum;
	69	return ret;
	70	}
1da177e4	71
b27c9590	72	/* Changes values from -0x80 to 0x7f into values from minimum to maximum */
10e41a71	73	static inline int tmff_scale_s8(int in, int minimum, int maximum)
b27c9590 DT	74	{
	75	int ret;
	76
	77	ret = (((in + 0x80) * (maximum - minimum)) / 0xff) + minimum;
	78	if (ret < minimum)
	79	return minimum;
	80	if (ret > maximum)
	81	return maximum;
	82	return ret;
	83	}
	84
10e41a71 JS	85	static int tmff_play(struct input_dev dev, void data,
10e41a71 JS	86	struct ff_effect *effect)
dc76c912	87	{
e0712985	88	struct hid_device *hid = input_get_drvdata(dev);
dc76c912	89	struct tmff_device *tmff = data;
b27c9590 DT	90	struct hid_field *ff_field = tmff->ff_field;
b27c9590 DT	91	int x, y;
dc76c912	92	int left, right; /* Rumbling */
1da177e4	93
b27c9590 DT	94	switch (effect->type) {
b27c9590 DT	95	case FF_CONSTANT:
10e41a71	96	x = tmff_scale_s8(effect->u.ramp.start_level,
b27c9590 DT	97	ff_field->logical_minimum,
b27c9590 DT	98	ff_field->logical_maximum);
10e41a71	99	y = tmff_scale_s8(effect->u.ramp.end_level,
b27c9590 DT	100	ff_field->logical_minimum,
	101	ff_field->logical_maximum);
	102
	103	dbg_hid("(x, y)=(%04x, %04x)\n", x, y);
	104	ff_field->value[0] = x;
	105	ff_field->value[1] = y;
	106	usbhid_submit_report(hid, tmff->report, USB_DIR_OUT);
	107	break;
	108
	109	case FF_RUMBLE:
10e41a71	110	left = tmff_scale_u16(effect->u.rumble.weak_magnitude,
b27c9590 DT	111	ff_field->logical_minimum,
b27c9590 DT	112	ff_field->logical_maximum);
10e41a71	113	right = tmff_scale_u16(effect->u.rumble.strong_magnitude,
b27c9590 DT	114	ff_field->logical_minimum,
	115	ff_field->logical_maximum);
	116
	117	dbg_hid("(left,right)=(%08x, %08x)\n", left, right);
	118	ff_field->value[0] = left;
	119	ff_field->value[1] = right;
	120	usbhid_submit_report(hid, tmff->report, USB_DIR_OUT);
	121	break;
	122	}
dc76c912 AH	123	return 0;
dc76c912 AH	124	}
1da177e4	125
10e41a71	126	static int tmff_init(struct hid_device hid, const signed short ff_bits)
1da177e4	127	{
dc76c912	128	struct tmff_device *tmff;
3ba5619f LZ	129	struct hid_report *report;
3ba5619f LZ	130	struct list_head *report_list;
10e41a71 JS	131	struct hid_input *hidinput = list_entry(hid->inputs.next,
10e41a71 JS	132	struct hid_input, list);
c5b7c7c3	133	struct input_dev *input_dev = hidinput->input;
dc76c912	134	int error;
b27c9590	135	int i;
1da177e4	136
dc76c912 AH	137	tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
dc76c912 AH	138	if (!tmff)
1da177e4 LT	139	return -ENOMEM;
1da177e4 LT	140
1da177e4	141	/* Find the report to use */
3ba5619f LZ	142	report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
3ba5619f LZ	143	list_for_each_entry(report, report_list, list) {
1da177e4 LT	144	int fieldnum;
	145
	146	for (fieldnum = 0; fieldnum < report->maxfield; ++fieldnum) {
	147	struct hid_field *field = report->field[fieldnum];
	148
	149	if (field->maxusage <= 0)
	150	continue;
	151
	152	switch (field->usage[0].hid) {
b27c9590 DT	153	case THRUSTMASTER_USAGE_FF:
b27c9590 DT	154	if (field->report_count < 2) {
4291ee30	155	hid_warn(hid, "ignoring FF field with report_count < 2\n");
b27c9590 DT	156	continue;
b27c9590 DT	157	}
1da177e4	158
10e41a71 JS	159	if (field->logical_maximum ==
10e41a71 JS	160	field->logical_minimum) {
4291ee30	161	hid_warn(hid, "ignoring FF field with logical_maximum == logical_minimum\n");
b27c9590 DT	162	continue;
b27c9590 DT	163	}
1da177e4	164
b27c9590	165	if (tmff->report && tmff->report != report) {
4291ee30	166	hid_warn(hid, "ignoring FF field in other report\n");
b27c9590 DT	167	continue;
b27c9590 DT	168	}
1da177e4	169
b27c9590	170	if (tmff->ff_field && tmff->ff_field != field) {
4291ee30	171	hid_warn(hid, "ignoring duplicate FF field\n");
b27c9590 DT	172	continue;
	173	}
	174
	175	tmff->report = report;
	176	tmff->ff_field = field;
	177
b27c9590 DT	178	for (i = 0; ff_bits[i] >= 0; i++)
b27c9590 DT	179	set_bit(ff_bits[i], input_dev->ffbit);
1da177e4	180
b27c9590	181	break;
1da177e4	182
b27c9590	183	default:
4291ee30 JP	184	hid_warn(hid, "ignoring unknown output usage %08x\n",
4291ee30 JP	185	field->usage[0].hid);
b27c9590	186	continue;
1da177e4	187	}
1da177e4 LT	188	}
	189	}
	190
b27c9590	191	if (!tmff->report) {
4291ee30	192	hid_err(hid, "can't find FF field in output reports\n");
b27c9590 DT	193	error = -ENODEV;
b27c9590 DT	194	goto fail;
1da177e4 LT	195	}
1da177e4 LT	196
10e41a71	197	error = input_ff_create_memless(input_dev, tmff, tmff_play);
b27c9590 DT	198	if (error)
b27c9590 DT	199	goto fail;
1da177e4	200
4291ee30	201	hid_info(hid, "force feedback for ThrustMaster devices by Zinx Verituse <zinx@epicsol.org>\n");
1da177e4	202	return 0;
b27c9590	203
10e41a71	204	fail:
b27c9590 DT	205	kfree(tmff);
b27c9590 DT	206	return error;
1da177e4	207	}
0f6f4319 JK	208	#else
	209	static inline int tmff_init(struct hid_device hid, const signed short ff_bits)
	210	{
	211	return 0;
	212	}
	213	#endif
1da177e4	214
10e41a71 JS	215	static int tm_probe(struct hid_device hdev, const struct hid_device_id id)
	216	{
	217	int ret;
	218
	219	ret = hid_parse(hdev);
	220	if (ret) {
4291ee30	221	hid_err(hdev, "parse failed\n");
10e41a71 JS	222	goto err;
	223	}
	224
	225	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
	226	if (ret) {
4291ee30	227	hid_err(hdev, "hw start failed\n");
10e41a71 JS	228	goto err;
	229	}
	230
	231	tmff_init(hdev, (void *)id->driver_data);
	232
	233	return 0;
	234	err:
	235	return ret;
	236	}
	237
	238	static const struct hid_device_id tm_devices[] = {
	239	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300),
	240	.driver_data = (unsigned long)ff_rumble },
7a84b133 RAG	241	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304), /* FireStorm Dual Power 2 (and 3) */
	242	.driver_data = (unsigned long)ff_rumble },
	243	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323), /* Dual Trigger 3-in-1 (PC Mode) */
	244	.driver_data = (unsigned long)ff_rumble },
	245	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324), /* Dual Trigger 3-in-1 (PS3 Mode) */
10e41a71 JS	246	.driver_data = (unsigned long)ff_rumble },
	247	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651), /* FGT Rumble Force Wheel */
	248	.driver_data = (unsigned long)ff_rumble },
3ee8f0a2 MR	249	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653), /* RGT Force Feedback CLUTCH Raging Wheel */
3ee8f0a2 MR	250	.driver_data = (unsigned long)ff_joystick },
10e41a71 JS	251	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654), /* FGT Force Feedback Wheel */
10e41a71 JS	252	.driver_data = (unsigned long)ff_joystick },
d65c3768 SW	253	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a), /* F430 Force Feedback Wheel */
d65c3768 SW	254	.driver_data = (unsigned long)ff_joystick },
10e41a71 JS	255	{ }
	256	};
	257	MODULE_DEVICE_TABLE(hid, tm_devices);
	258
	259	static struct hid_driver tm_driver = {
	260	.name = "thrustmaster",
	261	.id_table = tm_devices,
	262	.probe = tm_probe,
	263	};
	264
a24f423b	265	static int __init tm_init(void)
10e41a71 JS	266	{
	267	return hid_register_driver(&tm_driver);
	268	}
	269
a24f423b	270	static void __exit tm_exit(void)
10e41a71 JS	271	{
	272	hid_unregister_driver(&tm_driver);
	273	}
	274
	275	module_init(tm_init);
	276	module_exit(tm_exit);
	277	MODULE_LICENSE("GPL");