[linux-block.git] / drivers / input / joystick / iforce / iforce-main.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
 *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
 *
 *  USB/RS232 I-Force joysticks and wheels.
 */

/*
 */

#include "iforce.h"

MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
MODULE_LICENSE("GPL");

static signed short btn_joystick[] =
{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
  BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A,
  BTN_B, BTN_C, BTN_DEAD, -1 };

static signed short btn_joystick_avb[] =
{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
  BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_DEAD, -1 };

static signed short btn_wheel[] =
{ BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
  BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };

static signed short abs_joystick[] =
{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };

static signed short abs_joystick_rudder[] =
{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y, -1 };

static signed short abs_avb_pegasus[] =
{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
  ABS_HAT1X, ABS_HAT1Y, -1 };

static signed short abs_wheel[] =
{ ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };

static signed short ff_iforce[] =
{ FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
  FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
  FF_AUTOCENTER, -1 };

static struct iforce_device iforce_device[] = {
	{ 0x044f, 0xa01c, "Thrustmaster Motor Sport GT",		btn_wheel, abs_wheel, ff_iforce },
	{ 0x046d, 0xc281, "Logitech WingMan Force",			btn_joystick, abs_joystick, ff_iforce },
	{ 0x046d, 0xc291, "Logitech WingMan Formula Force",		btn_wheel, abs_wheel, ff_iforce },
	{ 0x05ef, 0x020a, "AVB Top Shot Pegasus",			btn_joystick_avb, abs_avb_pegasus, ff_iforce },
	{ 0x05ef, 0x8884, "AVB Mag Turbo Force",			btn_wheel, abs_wheel, ff_iforce },
	{ 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
	{ 0x061c, 0xc0a4, "ACT LABS Force RS",                          btn_wheel, abs_wheel, ff_iforce }, //?
	{ 0x061c, 0xc084, "ACT LABS Force RS",				btn_wheel, abs_wheel, ff_iforce },
	{ 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback",	btn_wheel, abs_wheel, ff_iforce }, //?
	{ 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback",	btn_joystick, abs_joystick_rudder, ff_iforce },
	{ 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
	{ 0x06f8, 0xa302, "Guillemot Jet Leader 3D",			btn_joystick, abs_joystick, ff_iforce }, //?
	{ 0x06d6, 0x29bc, "Trust Force Feedback Race Master",		btn_wheel, abs_wheel, ff_iforce },
	{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",		btn_joystick, abs_joystick, ff_iforce }
};

static int iforce_playback(struct input_dev *dev, int effect_id, int value)
{
	struct iforce *iforce = input_get_drvdata(dev);
	struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];

	if (value > 0)
		set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
	else
		clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);

	iforce_control_playback(iforce, effect_id, value);
	return 0;
}

static void iforce_set_gain(struct input_dev *dev, u16 gain)
{
	struct iforce *iforce = input_get_drvdata(dev);
	unsigned char data[3];

	data[0] = gain >> 9;
	iforce_send_packet(iforce, FF_CMD_GAIN, data);
}

static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
{
	struct iforce *iforce = input_get_drvdata(dev);
	unsigned char data[3];

	data[0] = 0x03;
	data[1] = magnitude >> 9;
	iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);

	data[0] = 0x04;
	data[1] = 0x01;
	iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
}

/*
 * Function called when an ioctl is performed on the event dev entry.
 * It uploads an effect to the device
 */
static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
	struct iforce *iforce = input_get_drvdata(dev);
	struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
	int ret;

	if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
		/* Check the effect is not already being updated */
		if (test_bit(FF_CORE_UPDATE, core_effect->flags))
			return -EAGAIN;
	}

/*
 * Upload the effect
 */
	switch (effect->type) {

		case FF_PERIODIC:
			ret = iforce_upload_periodic(iforce, effect, old);
			break;

		case FF_CONSTANT:
			ret = iforce_upload_constant(iforce, effect, old);
			break;

		case FF_SPRING:
		case FF_DAMPER:
			ret = iforce_upload_condition(iforce, effect, old);
			break;

		default:
			return -EINVAL;
	}

	if (ret == 0) {
		/* A packet was sent, forbid new updates until we are notified
		 * that the packet was updated
		 */
		set_bit(FF_CORE_UPDATE, core_effect->flags);
	}
	return ret;
}

/*
 * Erases an effect: it frees the effect id and mark as unused the memory
 * allocated for the parameters
 */
static int iforce_erase_effect(struct input_dev *dev, int effect_id)
{
	struct iforce *iforce = input_get_drvdata(dev);
	struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
	int err = 0;

	if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
		err = release_resource(&core_effect->mod1_chunk);

	if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
		err = release_resource(&core_effect->mod2_chunk);

	/* TODO: remember to change that if more FF_MOD* bits are added */
	core_effect->flags[0] = 0;

	return err;
}

static int iforce_open(struct input_dev *dev)
{
	struct iforce *iforce = input_get_drvdata(dev);

	switch (iforce->bus) {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
		case IFORCE_USB:
			iforce->irq->dev = iforce->usbdev;
			if (usb_submit_urb(iforce->irq, GFP_KERNEL))
				return -EIO;
			break;
#endif
	}

	if (test_bit(EV_FF, dev->evbit)) {
		/* Enable force feedback */
		iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
	}

	return 0;
}

static void iforce_close(struct input_dev *dev)
{
	struct iforce *iforce = input_get_drvdata(dev);
	int i;

	if (test_bit(EV_FF, dev->evbit)) {
		/* Check: no effects should be present in memory */
		for (i = 0; i < dev->ff->max_effects; i++) {
			if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
				dev_warn(&dev->dev,
					"%s: Device still owns effects\n",
					__func__);
				break;
			}
		}

		/* Disable force feedback playback */
		iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
		/* Wait for the command to complete */
		wait_event_interruptible(iforce->wait,
			!test_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags));
	}

	switch (iforce->bus) {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
	case IFORCE_USB:
		usb_kill_urb(iforce->irq);
		usb_kill_urb(iforce->out);
		usb_kill_urb(iforce->ctrl);
		break;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_232
	case IFORCE_232:
		//TODO: Wait for the last packets to be sent
		break;
#endif
	}
}

int iforce_init_device(struct iforce *iforce)
{
	struct input_dev *input_dev;
	struct ff_device *ff;
	unsigned char c[] = "CEOV";
	int i, error;
	int ff_effects = 0;

	input_dev = input_allocate_device();
	if (!input_dev)
		return -ENOMEM;

	init_waitqueue_head(&iforce->wait);
	spin_lock_init(&iforce->xmit_lock);
	mutex_init(&iforce->mem_mutex);
	iforce->xmit.buf = iforce->xmit_data;
	iforce->dev = input_dev;

/*
 * Input device fields.
 */

	switch (iforce->bus) {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
	case IFORCE_USB:
		input_dev->id.bustype = BUS_USB;
		input_dev->dev.parent = &iforce->usbdev->dev;
		break;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_232
	case IFORCE_232:
		input_dev->id.bustype = BUS_RS232;
		input_dev->dev.parent = &iforce->serio->dev;
		break;
#endif
	}

	input_set_drvdata(input_dev, iforce);

	input_dev->name = "Unknown I-Force device";
	input_dev->open = iforce_open;
	input_dev->close = iforce_close;

/*
 * On-device memory allocation.
 */

	iforce->device_memory.name = "I-Force device effect memory";
	iforce->device_memory.start = 0;
	iforce->device_memory.end = 200;
	iforce->device_memory.flags = IORESOURCE_MEM;
	iforce->device_memory.parent = NULL;
	iforce->device_memory.child = NULL;
	iforce->device_memory.sibling = NULL;

/*
 * Wait until device ready - until it sends its first response.
 */

	for (i = 0; i < 20; i++)
		if (!iforce_get_id_packet(iforce, "O"))
			break;

	if (i == 20) { /* 5 seconds */
		dev_err(&input_dev->dev,
			"Timeout waiting for response from device.\n");
		error = -ENODEV;
		goto fail;
	}

/*
 * Get device info.
 */

	if (!iforce_get_id_packet(iforce, "M"))
		input_dev->id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
	else
		dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");

	if (!iforce_get_id_packet(iforce, "P"))
		input_dev->id.product = (iforce->edata[2] << 8) | iforce->edata[1];
	else
		dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n");

	if (!iforce_get_id_packet(iforce, "B"))
		iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
	else
		dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");

	if (!iforce_get_id_packet(iforce, "N"))
		ff_effects = iforce->edata[1];
	else
		dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");

	/* Check if the device can store more effects than the driver can really handle */
	if (ff_effects > IFORCE_EFFECTS_MAX) {
		dev_warn(&iforce->dev->dev, "Limiting number of effects to %d (device reports %d)\n",
		       IFORCE_EFFECTS_MAX, ff_effects);
		ff_effects = IFORCE_EFFECTS_MAX;
	}

/*
 * Display additional info.
 */

	for (i = 0; c[i]; i++)
		if (!iforce_get_id_packet(iforce, c + i))
			iforce_dump_packet(iforce, "info", iforce->ecmd, iforce->edata);

/*
 * Disable spring, enable force feedback.
 */
	iforce_set_autocenter(input_dev, 0);

/*
 * Find appropriate device entry
 */

	for (i = 0; iforce_device[i].idvendor; i++)
		if (iforce_device[i].idvendor == input_dev->id.vendor &&
		    iforce_device[i].idproduct == input_dev->id.product)
			break;

	iforce->type = iforce_device + i;
	input_dev->name = iforce->type->name;

/*
 * Set input device bitfields and ranges.
 */

	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
		BIT_MASK(EV_FF_STATUS);

	for (i = 0; iforce->type->btn[i] >= 0; i++)
		set_bit(iforce->type->btn[i], input_dev->keybit);

	for (i = 0; iforce->type->abs[i] >= 0; i++) {

		signed short t = iforce->type->abs[i];

		switch (t) {

			case ABS_X:
			case ABS_Y:
			case ABS_WHEEL:

				input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
				set_bit(t, input_dev->ffbit);
				break;

			case ABS_THROTTLE:
			case ABS_GAS:
			case ABS_BRAKE:

				input_set_abs_params(input_dev, t, 0, 255, 0, 0);
				break;

			case ABS_RUDDER:

				input_set_abs_params(input_dev, t, -128, 127, 0, 0);
				break;

			case ABS_HAT0X:
			case ABS_HAT0Y:
		        case ABS_HAT1X:
		        case ABS_HAT1Y:

				input_set_abs_params(input_dev, t, -1, 1, 0, 0);
				break;
		}
	}

	if (ff_effects) {

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

		error = input_ff_create(input_dev, ff_effects);
		if (error)
			goto fail;

		ff = input_dev->ff;
		ff->upload = iforce_upload_effect;
		ff->erase = iforce_erase_effect;
		ff->set_gain = iforce_set_gain;
		ff->set_autocenter = iforce_set_autocenter;
		ff->playback = iforce_playback;
	}
/*
 * Register input device.
 */

	error = input_register_device(iforce->dev);
	if (error)
		goto fail;

	return 0;

 fail:	input_free_device(input_dev);
	return error;
}

static int __init iforce_init(void)
{
	int err = 0;

#ifdef CONFIG_JOYSTICK_IFORCE_USB
	err = usb_register(&iforce_usb_driver);
	if (err)
		return err;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_232
	err = serio_register_driver(&iforce_serio_drv);
#ifdef CONFIG_JOYSTICK_IFORCE_USB
	if (err)
		usb_deregister(&iforce_usb_driver);
#endif
#endif
	return err;
}

static void __exit iforce_exit(void)
{
#ifdef CONFIG_JOYSTICK_IFORCE_USB
	usb_deregister(&iforce_usb_driver);
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_232
	serio_unregister_driver(&iforce_serio_drv);
#endif
}

module_init(iforce_init);
module_exit(iforce_exit);
Commit	Line	Data
1a59d1b8	1	// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4	2	/*
1da177e4	3	* Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
598972d4	4	* Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
1da177e4 LT	5	*
	6	* USB/RS232 I-Force joysticks and wheels.
	7	*/
	8
	9	/*
1da177e4 LT	10	*/
	11
	12	#include "iforce.h"
	13
598972d4	14	MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
1da177e4 LT	15	MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
	16	MODULE_LICENSE("GPL");
	17
	18	static signed short btn_joystick[] =
	19	{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
6c6212aa TS	20	BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A,
6c6212aa TS	21	BTN_B, BTN_C, BTN_DEAD, -1 };
1da177e4	22
0b64fa0a	23	static signed short btn_joystick_avb[] =
1da177e4	24	{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
6c6212aa	25	BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_DEAD, -1 };
1da177e4	26
0b64fa0a	27	static signed short btn_wheel[] =
1da177e4 LT	28	{ BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
	29	BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };
	30
	31	static signed short abs_joystick[] =
	32	{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
	33
d861f7bf MV	34	static signed short abs_joystick_rudder[] =
	35	{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y, -1 };
	36
1da177e4 LT	37	static signed short abs_avb_pegasus[] =
	38	{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
	39	ABS_HAT1X, ABS_HAT1Y, -1 };
	40
	41	static signed short abs_wheel[] =
	42	{ ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };
	43
	44	static signed short ff_iforce[] =
	45	{ FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
	46	FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
	47	FF_AUTOCENTER, -1 };
	48
	49	static struct iforce_device iforce_device[] = {
	50	{ 0x044f, 0xa01c, "Thrustmaster Motor Sport GT", btn_wheel, abs_wheel, ff_iforce },
	51	{ 0x046d, 0xc281, "Logitech WingMan Force", btn_joystick, abs_joystick, ff_iforce },
	52	{ 0x046d, 0xc291, "Logitech WingMan Formula Force", btn_wheel, abs_wheel, ff_iforce },
0b64fa0a TS	53	{ 0x05ef, 0x020a, "AVB Top Shot Pegasus", btn_joystick_avb, abs_avb_pegasus, ff_iforce },
	54	{ 0x05ef, 0x8884, "AVB Mag Turbo Force", btn_wheel, abs_wheel, ff_iforce },
	55	{ 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
1da177e4	56	{ 0x061c, 0xc0a4, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce }, //?
68947b8f	57	{ 0x061c, 0xc084, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce },
1da177e4	58	{ 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback", btn_wheel, abs_wheel, ff_iforce }, //?
d861f7bf	59	{ 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback", btn_joystick, abs_joystick_rudder, ff_iforce },
1da177e4	60	{ 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
513d8be9	61	{ 0x06f8, 0xa302, "Guillemot Jet Leader 3D", btn_joystick, abs_joystick, ff_iforce }, //?
b53174fb	62	{ 0x06d6, 0x29bc, "Trust Force Feedback Race Master", btn_wheel, abs_wheel, ff_iforce },
1da177e4 LT	63	{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]", btn_joystick, abs_joystick, ff_iforce }
	64	};
	65
f6a01c85	66	static int iforce_playback(struct input_dev *dev, int effect_id, int value)
1da177e4	67	{
4615e33f	68	struct iforce *iforce = input_get_drvdata(dev);
f6a01c85	69	struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
1da177e4	70
f6a01c85 AH	71	if (value > 0)
	72	set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
	73	else
	74	clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
1da177e4	75
f6a01c85 AH	76	iforce_control_playback(iforce, effect_id, value);
	77	return 0;
	78	}
1da177e4	79
f6a01c85 AH	80	static void iforce_set_gain(struct input_dev *dev, u16 gain)
f6a01c85 AH	81	{
4615e33f	82	struct iforce *iforce = input_get_drvdata(dev);
f6a01c85	83	unsigned char data[3];
1da177e4	84
f6a01c85 AH	85	data[0] = gain >> 9;
	86	iforce_send_packet(iforce, FF_CMD_GAIN, data);
	87	}
1da177e4	88
f6a01c85 AH	89	static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
f6a01c85 AH	90	{
4615e33f	91	struct iforce *iforce = input_get_drvdata(dev);
f6a01c85	92	unsigned char data[3];
1da177e4	93
f6a01c85 AH	94	data[0] = 0x03;
	95	data[1] = magnitude >> 9;
	96	iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
1da177e4	97
f6a01c85 AH	98	data[0] = 0x04;
	99	data[1] = 0x01;
	100	iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
1da177e4 LT	101	}
	102
	103	/*
	104	* Function called when an ioctl is performed on the event dev entry.
	105	* It uploads an effect to the device
	106	*/
f6a01c85	107	static int iforce_upload_effect(struct input_dev dev, struct ff_effect effect, struct ff_effect *old)
1da177e4	108	{
4615e33f	109	struct iforce *iforce = input_get_drvdata(dev);
f6a01c85	110	struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
1da177e4	111	int ret;
1da177e4	112
f6a01c85	113	if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
1da177e4	114	/* Check the effect is not already being updated */
f6a01c85	115	if (test_bit(FF_CORE_UPDATE, core_effect->flags))
1da177e4	116	return -EAGAIN;
1da177e4 LT	117	}
	118
	119	/*
	120	* Upload the effect
	121	*/
	122	switch (effect->type) {
	123
	124	case FF_PERIODIC:
f6a01c85	125	ret = iforce_upload_periodic(iforce, effect, old);
1da177e4 LT	126	break;
	127
	128	case FF_CONSTANT:
f6a01c85	129	ret = iforce_upload_constant(iforce, effect, old);
1da177e4 LT	130	break;
	131
	132	case FF_SPRING:
	133	case FF_DAMPER:
f6a01c85	134	ret = iforce_upload_condition(iforce, effect, old);
1da177e4 LT	135	break;
	136
	137	default:
	138	return -EINVAL;
	139	}
f6a01c85	140
1da177e4 LT	141	if (ret == 0) {
	142	/* A packet was sent, forbid new updates until we are notified
	143	* that the packet was updated
	144	*/
f6a01c85	145	set_bit(FF_CORE_UPDATE, core_effect->flags);
1da177e4	146	}
1da177e4 LT	147	return ret;
	148	}
	149
	150	/*
	151	* Erases an effect: it frees the effect id and mark as unused the memory
	152	* allocated for the parameters
	153	*/
	154	static int iforce_erase_effect(struct input_dev *dev, int effect_id)
	155	{
4615e33f	156	struct iforce *iforce = input_get_drvdata(dev);
f6a01c85	157	struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
1da177e4	158	int err = 0;
1da177e4 LT	159
1da177e4 LT	160	if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
8d64d372	161	err = release_resource(&core_effect->mod1_chunk);
1da177e4 LT	162
1da177e4 LT	163	if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
8d64d372	164	err = release_resource(&core_effect->mod2_chunk);
1da177e4	165
f6a01c85	166	/* TODO: remember to change that if more FF_MOD* bits are added */
1da177e4 LT	167	core_effect->flags[0] = 0;
	168
	169	return err;
	170	}
	171
	172	static int iforce_open(struct input_dev *dev)
	173	{
4615e33f	174	struct iforce *iforce = input_get_drvdata(dev);
1da177e4 LT	175
	176	switch (iforce->bus) {
	177	#ifdef CONFIG_JOYSTICK_IFORCE_USB
	178	case IFORCE_USB:
	179	iforce->irq->dev = iforce->usbdev;
	180	if (usb_submit_urb(iforce->irq, GFP_KERNEL))
	181	return -EIO;
	182	break;
	183	#endif
	184	}
	185
f6a01c85 AH	186	if (test_bit(EV_FF, dev->evbit)) {
	187	/* Enable force feedback */
	188	iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
	189	}
1da177e4 LT	190
	191	return 0;
	192	}
	193
98b7fb04	194	static void iforce_close(struct input_dev *dev)
1da177e4	195	{
4615e33f	196	struct iforce *iforce = input_get_drvdata(dev);
1da177e4 LT	197	int i;
1da177e4 LT	198
f6a01c85 AH	199	if (test_bit(EV_FF, dev->evbit)) {
	200	/* Check: no effects should be present in memory */
	201	for (i = 0; i < dev->ff->max_effects; i++) {
	202	if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
1817b169 GKH	203	dev_warn(&dev->dev,
	204	"%s: Device still owns effects\n",
	205	__func__);
f6a01c85	206	break;
1da177e4 LT	207	}
	208	}
	209
f6a01c85 AH	210	/* Disable force feedback playback */
f6a01c85 AH	211	iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
c2b27ef6 DT	212	/* Wait for the command to complete */
	213	wait_event_interruptible(iforce->wait,
	214	!test_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags));
1da177e4	215	}
1da177e4	216
1da177e4 LT	217	switch (iforce->bus) {
	218	#ifdef CONFIG_JOYSTICK_IFORCE_USB
	219	case IFORCE_USB:
98b7fb04 DT	220	usb_kill_urb(iforce->irq);
	221	usb_kill_urb(iforce->out);
	222	usb_kill_urb(iforce->ctrl);
1da177e4 LT	223	break;
	224	#endif
	225	#ifdef CONFIG_JOYSTICK_IFORCE_232
	226	case IFORCE_232:
	227	//TODO: Wait for the last packets to be sent
	228	break;
	229	#endif
	230	}
	231	}
	232
	233	int iforce_init_device(struct iforce *iforce)
	234	{
17dd3f0f	235	struct input_dev *input_dev;
f6a01c85	236	struct ff_device *ff;
1da177e4	237	unsigned char c[] = "CEOV";
f6a01c85 AH	238	int i, error;
f6a01c85 AH	239	int ff_effects = 0;
1da177e4	240
17dd3f0f	241	input_dev = input_allocate_device();
5ae08f80	242	if (!input_dev)
17dd3f0f DT	243	return -ENOMEM;
17dd3f0f DT	244
1da177e4 LT	245	init_waitqueue_head(&iforce->wait);
1da177e4 LT	246	spin_lock_init(&iforce->xmit_lock);
72ba9f0c	247	mutex_init(&iforce->mem_mutex);
1da177e4	248	iforce->xmit.buf = iforce->xmit_data;
17dd3f0f	249	iforce->dev = input_dev;
1da177e4 LT	250
	251	/*
	252	* Input device fields.
	253	*/
	254
	255	switch (iforce->bus) {
	256	#ifdef CONFIG_JOYSTICK_IFORCE_USB
	257	case IFORCE_USB:
17dd3f0f	258	input_dev->id.bustype = BUS_USB;
935e658e	259	input_dev->dev.parent = &iforce->usbdev->dev;
1da177e4 LT	260	break;
	261	#endif
	262	#ifdef CONFIG_JOYSTICK_IFORCE_232
	263	case IFORCE_232:
17dd3f0f	264	input_dev->id.bustype = BUS_RS232;
935e658e	265	input_dev->dev.parent = &iforce->serio->dev;
1da177e4 LT	266	break;
	267	#endif
	268	}
	269
4615e33f DT	270	input_set_drvdata(input_dev, iforce);
4615e33f DT	271
17dd3f0f DT	272	input_dev->name = "Unknown I-Force device";
17dd3f0f DT	273	input_dev->open = iforce_open;
98b7fb04	274	input_dev->close = iforce_close;
1da177e4 LT	275
	276	/*
	277	* On-device memory allocation.
	278	*/
	279
	280	iforce->device_memory.name = "I-Force device effect memory";
	281	iforce->device_memory.start = 0;
	282	iforce->device_memory.end = 200;
	283	iforce->device_memory.flags = IORESOURCE_MEM;
	284	iforce->device_memory.parent = NULL;
	285	iforce->device_memory.child = NULL;
	286	iforce->device_memory.sibling = NULL;
	287
	288	/*
	289	* Wait until device ready - until it sends its first response.
	290	*/
	291
	292	for (i = 0; i < 20; i++)
	293	if (!iforce_get_id_packet(iforce, "O"))
	294	break;
	295
	296	if (i == 20) { /* 5 seconds */
7b22a885 GKH	297	dev_err(&input_dev->dev,
7b22a885 GKH	298	"Timeout waiting for response from device.\n");
127278ce DT	299	error = -ENODEV;
127278ce DT	300	goto fail;
1da177e4 LT	301	}
	302
	303	/*
	304	* Get device info.
	305	*/
	306
	307	if (!iforce_get_id_packet(iforce, "M"))
17dd3f0f	308	input_dev->id.vendor = (iforce->edata[2] << 8) \| iforce->edata[1];
1da177e4	309	else
1817b169	310	dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");
1da177e4 LT	311
1da177e4 LT	312	if (!iforce_get_id_packet(iforce, "P"))
17dd3f0f	313	input_dev->id.product = (iforce->edata[2] << 8) \| iforce->edata[1];
1da177e4	314	else
1817b169	315	dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n");
1da177e4 LT	316
	317	if (!iforce_get_id_packet(iforce, "B"))
	318	iforce->device_memory.end = (iforce->edata[2] << 8) \| iforce->edata[1];
	319	else
1817b169	320	dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");
1da177e4 LT	321
1da177e4 LT	322	if (!iforce_get_id_packet(iforce, "N"))
f6a01c85	323	ff_effects = iforce->edata[1];
1da177e4	324	else
1817b169	325	dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");
1da177e4 LT	326
1da177e4 LT	327	/* Check if the device can store more effects than the driver can really handle */
f6a01c85	328	if (ff_effects > IFORCE_EFFECTS_MAX) {
1817b169	329	dev_warn(&iforce->dev->dev, "Limiting number of effects to %d (device reports %d)\n",
f6a01c85 AH	330	IFORCE_EFFECTS_MAX, ff_effects);
f6a01c85 AH	331	ff_effects = IFORCE_EFFECTS_MAX;
1da177e4 LT	332	}
	333
	334	/*
	335	* Display additional info.
	336	*/
	337
	338	for (i = 0; c[i]; i++)
	339	if (!iforce_get_id_packet(iforce, c + i))
305180bc	340	iforce_dump_packet(iforce, "info", iforce->ecmd, iforce->edata);
1da177e4 LT	341
	342	/*
	343	* Disable spring, enable force feedback.
1da177e4	344	*/
c0338c15	345	iforce_set_autocenter(input_dev, 0);
1da177e4 LT	346
	347	/*
	348	* Find appropriate device entry
	349	*/
	350
	351	for (i = 0; iforce_device[i].idvendor; i++)
17dd3f0f DT	352	if (iforce_device[i].idvendor == input_dev->id.vendor &&
17dd3f0f DT	353	iforce_device[i].idproduct == input_dev->id.product)
1da177e4 LT	354	break;
	355
	356	iforce->type = iforce_device + i;
17dd3f0f	357	input_dev->name = iforce->type->name;
1da177e4 LT	358
	359	/*
	360	* Set input device bitfields and ranges.
	361	*/
	362
7b19ada2 JS	363	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_ABS) \|
7b19ada2 JS	364	BIT_MASK(EV_FF_STATUS);
1da177e4	365
f6a01c85 AH	366	for (i = 0; iforce->type->btn[i] >= 0; i++)
f6a01c85 AH	367	set_bit(iforce->type->btn[i], input_dev->keybit);
1da177e4 LT	368
	369	for (i = 0; iforce->type->abs[i] >= 0; i++) {
	370
	371	signed short t = iforce->type->abs[i];
1da177e4 LT	372
	373	switch (t) {
	374
	375	case ABS_X:
	376	case ABS_Y:
	377	case ABS_WHEEL:
	378
17dd3f0f DT	379	input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
17dd3f0f DT	380	set_bit(t, input_dev->ffbit);
1da177e4 LT	381	break;
	382
	383	case ABS_THROTTLE:
	384	case ABS_GAS:
	385	case ABS_BRAKE:
	386
17dd3f0f	387	input_set_abs_params(input_dev, t, 0, 255, 0, 0);
1da177e4 LT	388	break;
	389
	390	case ABS_RUDDER:
	391
17dd3f0f	392	input_set_abs_params(input_dev, t, -128, 127, 0, 0);
1da177e4 LT	393	break;
	394
	395	case ABS_HAT0X:
	396	case ABS_HAT0Y:
	397	case ABS_HAT1X:
	398	case ABS_HAT1Y:
17dd3f0f DT	399
17dd3f0f DT	400	input_set_abs_params(input_dev, t, -1, 1, 0, 0);
1da177e4 LT	401	break;
	402	}
	403	}
	404
f6a01c85	405	if (ff_effects) {
1da177e4	406
f6a01c85 AH	407	for (i = 0; iforce->type->ff[i] >= 0; i++)
	408	set_bit(iforce->type->ff[i], input_dev->ffbit);
	409
	410	error = input_ff_create(input_dev, ff_effects);
127278ce DT	411	if (error)
127278ce DT	412	goto fail;
f6a01c85 AH	413
	414	ff = input_dev->ff;
	415	ff->upload = iforce_upload_effect;
	416	ff->erase = iforce_erase_effect;
	417	ff->set_gain = iforce_set_gain;
	418	ff->set_autocenter = iforce_set_autocenter;
	419	ff->playback = iforce_playback;
	420	}
1da177e4 LT	421	/*
	422	* Register input device.
	423	*/
	424
127278ce DT	425	error = input_register_device(iforce->dev);
	426	if (error)
	427	goto fail;
1da177e4	428
1da177e4	429	return 0;
127278ce DT	430
	431	fail: input_free_device(input_dev);
	432	return error;
1da177e4 LT	433	}
	434
	435	static int __init iforce_init(void)
	436	{
153a9df0 AM	437	int err = 0;
153a9df0 AM	438
1da177e4	439	#ifdef CONFIG_JOYSTICK_IFORCE_USB
153a9df0 AM	440	err = usb_register(&iforce_usb_driver);
	441	if (err)
	442	return err;
1da177e4 LT	443	#endif
1da177e4 LT	444	#ifdef CONFIG_JOYSTICK_IFORCE_232
153a9df0 AM	445	err = serio_register_driver(&iforce_serio_drv);
	446	#ifdef CONFIG_JOYSTICK_IFORCE_USB
	447	if (err)
	448	usb_deregister(&iforce_usb_driver);
1da177e4	449	#endif
153a9df0 AM	450	#endif
153a9df0 AM	451	return err;
1da177e4 LT	452	}
	453
	454	static void __exit iforce_exit(void)
	455	{
	456	#ifdef CONFIG_JOYSTICK_IFORCE_USB
	457	usb_deregister(&iforce_usb_driver);
	458	#endif
	459	#ifdef CONFIG_JOYSTICK_IFORCE_232
	460	serio_unregister_driver(&iforce_serio_drv);
	461	#endif
	462	}
	463
	464	module_init(iforce_init);
	465	module_exit(iforce_exit);