[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / input / joystick / iforce / iforce-usb.c

 /*
 *  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.
 */

/*
 * 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
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */

#include "iforce.h"

void iforce_usb_xmit(struct iforce *iforce)
{
	int n, c;
	unsigned long flags;

	spin_lock_irqsave(&iforce->xmit_lock, flags);

	if (iforce->xmit.head == iforce->xmit.tail) {
		clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
		spin_unlock_irqrestore(&iforce->xmit_lock, flags);
		return;
	}

	((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
	XMIT_INC(iforce->xmit.tail, 1);
	n = iforce->xmit.buf[iforce->xmit.tail];
	XMIT_INC(iforce->xmit.tail, 1);

	iforce->out->transfer_buffer_length = n + 1;
	iforce->out->dev = iforce->usbdev;

	/* Copy rest of data then */
	c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
	if (n < c) c=n;

	memcpy(iforce->out->transfer_buffer + 1,
	       &iforce->xmit.buf[iforce->xmit.tail],
	       c);
	if (n != c) {
		memcpy(iforce->out->transfer_buffer + 1 + c,
		       &iforce->xmit.buf[0],
		       n-c);
	}
	XMIT_INC(iforce->xmit.tail, n);

	if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
		clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
		dev_warn(&iforce->intf->dev, "usb_submit_urb failed %d\n", n);
	}

	/* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
	 * As long as the urb completion handler is not called, the transmiting
	 * is considered to be running */
	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
}

static void iforce_usb_irq(struct urb *urb)
{
	struct iforce *iforce = urb->context;
	struct device *dev = &iforce->intf->dev;
	int status;

	switch (urb->status) {
	case 0:
		/* success */
		break;
	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dev_dbg(dev, "%s - urb shutting down with status: %d\n",
			__func__, urb->status);
		return;
	default:
		dev_dbg(dev, "%s - urb has status of: %d\n",
			__func__, urb->status);
		goto exit;
	}

	iforce_process_packet(iforce,
		(iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1);

exit:
	status = usb_submit_urb (urb, GFP_ATOMIC);
	if (status)
		dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
			__func__, status);
}

static void iforce_usb_out(struct urb *urb)
{
	struct iforce *iforce = urb->context;

	if (urb->status) {
		clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
		dev_dbg(&iforce->intf->dev, "urb->status %d, exiting\n",
			urb->status);
		return;
	}

	iforce_usb_xmit(iforce);

	wake_up(&iforce->wait);
}

static void iforce_usb_ctrl(struct urb *urb)
{
	struct iforce *iforce = urb->context;
	if (urb->status) return;
	iforce->ecmd = 0xff00 | urb->actual_length;
	wake_up(&iforce->wait);
}

static int iforce_usb_probe(struct usb_interface *intf,
				const struct usb_device_id *id)
{
	struct usb_device *dev = interface_to_usbdev(intf);
	struct usb_host_interface *interface;
	struct usb_endpoint_descriptor *epirq, *epout;
	struct iforce *iforce;
	int err = -ENOMEM;

	interface = intf->cur_altsetting;

	if (interface->desc.bNumEndpoints < 2)
		return -ENODEV;

	epirq = &interface->endpoint[0].desc;
	epout = &interface->endpoint[1].desc;

	if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
		goto fail;

	if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
		goto fail;

	if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
		goto fail;

	if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
		goto fail;

	iforce->bus = IFORCE_USB;
	iforce->usbdev = dev;
	iforce->intf = intf;

	iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
	iforce->cr.wIndex = 0;
	iforce->cr.wLength = cpu_to_le16(16);

	usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
			iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);

	usb_fill_int_urb(iforce->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
			iforce + 1, 32, iforce_usb_out, iforce, epout->bInterval);

	usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
			(void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);

	err = iforce_init_device(iforce);
	if (err)
		goto fail;

	usb_set_intfdata(intf, iforce);
	return 0;

fail:
	if (iforce) {
		usb_free_urb(iforce->irq);
		usb_free_urb(iforce->out);
		usb_free_urb(iforce->ctrl);
		kfree(iforce);
	}

	return err;
}

static void iforce_usb_disconnect(struct usb_interface *intf)
{
	struct iforce *iforce = usb_get_intfdata(intf);

	usb_set_intfdata(intf, NULL);

	input_unregister_device(iforce->dev);

	usb_free_urb(iforce->irq);
	usb_free_urb(iforce->out);
	usb_free_urb(iforce->ctrl);

	kfree(iforce);
}

static struct usb_device_id iforce_usb_ids [] = {
	{ USB_DEVICE(0x044f, 0xa01c) },		/* Thrustmaster Motor Sport GT */
	{ USB_DEVICE(0x046d, 0xc281) },		/* Logitech WingMan Force */
	{ USB_DEVICE(0x046d, 0xc291) },		/* Logitech WingMan Formula Force */
	{ USB_DEVICE(0x05ef, 0x020a) },		/* AVB Top Shot Pegasus */
	{ USB_DEVICE(0x05ef, 0x8884) },		/* AVB Mag Turbo Force */
	{ USB_DEVICE(0x05ef, 0x8888) },		/* AVB Top Shot FFB Racing Wheel */
	{ USB_DEVICE(0x061c, 0xc0a4) },         /* ACT LABS Force RS */
	{ USB_DEVICE(0x061c, 0xc084) },         /* ACT LABS Force RS */
	{ USB_DEVICE(0x06f8, 0x0001) },		/* Guillemot Race Leader Force Feedback */
	{ USB_DEVICE(0x06f8, 0x0003) },		/* Guillemot Jet Leader Force Feedback */
	{ USB_DEVICE(0x06f8, 0x0004) },		/* Guillemot Force Feedback Racing Wheel */
	{ USB_DEVICE(0x06f8, 0xa302) },		/* Guillemot Jet Leader 3D */
	{ }					/* Terminating entry */
};

MODULE_DEVICE_TABLE (usb, iforce_usb_ids);

struct usb_driver iforce_usb_driver = {
	.name =		"iforce",
	.probe =	iforce_usb_probe,
	.disconnect =	iforce_usb_disconnect,
	.id_table =	iforce_usb_ids,
};
Commit	Line	Data
1da177e4	1	/*
1da177e4	2	* Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
598972d4	3	* Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
1da177e4 LT	4	*
	5	* USB/RS232 I-Force joysticks and wheels.
	6	*/
	7
	8	/*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*
	23	* Should you need to contact me, the author, you can do so either by
	24	* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
	25	* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
	26	*/
	27
	28	#include "iforce.h"
	29
	30	void iforce_usb_xmit(struct iforce *iforce)
	31	{
	32	int n, c;
	33	unsigned long flags;
	34
	35	spin_lock_irqsave(&iforce->xmit_lock, flags);
	36
	37	if (iforce->xmit.head == iforce->xmit.tail) {
	38	clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
	39	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
	40	return;
	41	}
	42
	43	((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
	44	XMIT_INC(iforce->xmit.tail, 1);
	45	n = iforce->xmit.buf[iforce->xmit.tail];
	46	XMIT_INC(iforce->xmit.tail, 1);
	47
	48	iforce->out->transfer_buffer_length = n + 1;
	49	iforce->out->dev = iforce->usbdev;
	50
	51	/* Copy rest of data then */
	52	c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
	53	if (n < c) c=n;
	54
	55	memcpy(iforce->out->transfer_buffer + 1,
	56	&iforce->xmit.buf[iforce->xmit.tail],
	57	c);
	58	if (n != c) {
	59	memcpy(iforce->out->transfer_buffer + 1 + c,
	60	&iforce->xmit.buf[0],
	61	n-c);
	62	}
	63	XMIT_INC(iforce->xmit.tail, n);
	64
	65	if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
b8691fd2	66	clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
a852d78e	67	dev_warn(&iforce->intf->dev, "usb_submit_urb failed %d\n", n);
1da177e4 LT	68	}
	69
	70	/* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
	71	* As long as the urb completion handler is not called, the transmiting
	72	* is considered to be running */
	73	spin_unlock_irqrestore(&iforce->xmit_lock, flags);
	74	}
	75
7d12e780	76	static void iforce_usb_irq(struct urb *urb)
1da177e4 LT	77	{
1da177e4 LT	78	struct iforce *iforce = urb->context;
a852d78e	79	struct device *dev = &iforce->intf->dev;
1da177e4 LT	80	int status;
	81
	82	switch (urb->status) {
	83	case 0:
	84	/* success */
	85	break;
	86	case -ECONNRESET:
	87	case -ENOENT:
	88	case -ESHUTDOWN:
	89	/* this urb is terminated, clean up */
f576125d GKH	90	dev_dbg(dev, "%s - urb shutting down with status: %d\n",
f576125d GKH	91	__func__, urb->status);
1da177e4 LT	92	return;
1da177e4 LT	93	default:
f576125d GKH	94	dev_dbg(dev, "%s - urb has status of: %d\n",
f576125d GKH	95	__func__, urb->status);
1da177e4 LT	96	goto exit;
	97	}
	98
	99	iforce_process_packet(iforce,
7d12e780	100	(iforce->data[0] << 8) \| (urb->actual_length - 1), iforce->data + 1);
1da177e4 LT	101
	102	exit:
	103	status = usb_submit_urb (urb, GFP_ATOMIC);
	104	if (status)
f576125d	105	dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
7b22a885	106	__func__, status);
1da177e4 LT	107	}
1da177e4 LT	108
7d12e780	109	static void iforce_usb_out(struct urb *urb)
1da177e4 LT	110	{
	111	struct iforce *iforce = urb->context;
	112
	113	if (urb->status) {
c2b27ef6	114	clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
a852d78e	115	dev_dbg(&iforce->intf->dev, "urb->status %d, exiting\n",
f576125d	116	urb->status);
1da177e4 LT	117	return;
	118	}
	119
	120	iforce_usb_xmit(iforce);
	121
	122	wake_up(&iforce->wait);
	123	}
	124
7d12e780	125	static void iforce_usb_ctrl(struct urb *urb)
1da177e4 LT	126	{
	127	struct iforce *iforce = urb->context;
	128	if (urb->status) return;
	129	iforce->ecmd = 0xff00 \| urb->actual_length;
	130	wake_up(&iforce->wait);
	131	}
	132
	133	static int iforce_usb_probe(struct usb_interface *intf,
	134	const struct usb_device_id *id)
	135	{
	136	struct usb_device *dev = interface_to_usbdev(intf);
	137	struct usb_host_interface *interface;
	138	struct usb_endpoint_descriptor epirq, epout;
	139	struct iforce *iforce;
17dd3f0f	140	int err = -ENOMEM;
1da177e4 LT	141
	142	interface = intf->cur_altsetting;
	143
f0819a49 JH	144	if (interface->desc.bNumEndpoints < 2)
	145	return -ENODEV;
	146
1da177e4 LT	147	epirq = &interface->endpoint[0].desc;
	148	epout = &interface->endpoint[1].desc;
	149
17dd3f0f	150	if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
1da177e4 LT	151	goto fail;
1da177e4 LT	152
17dd3f0f	153	if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
1da177e4	154	goto fail;
1da177e4	155
17dd3f0f	156	if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
1da177e4	157	goto fail;
1da177e4	158
17dd3f0f	159	if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
1da177e4	160	goto fail;
1da177e4 LT	161
	162	iforce->bus = IFORCE_USB;
	163	iforce->usbdev = dev;
a852d78e	164	iforce->intf = intf;
1da177e4 LT	165
	166	iforce->cr.bRequestType = USB_TYPE_VENDOR \| USB_DIR_IN \| USB_RECIP_INTERFACE;
	167	iforce->cr.wIndex = 0;
6b8588f7	168	iforce->cr.wLength = cpu_to_le16(16);
1da177e4 LT	169
	170	usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
	171	iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
	172
b8691fd2 JD	173	usb_fill_int_urb(iforce->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
b8691fd2 JD	174	iforce + 1, 32, iforce_usb_out, iforce, epout->bInterval);
1da177e4 LT	175
	176	usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
	177	(void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
	178
17dd3f0f DT	179	err = iforce_init_device(iforce);
	180	if (err)
	181	goto fail;
1da177e4 LT	182
	183	usb_set_intfdata(intf, iforce);
	184	return 0;
	185
	186	fail:
	187	if (iforce) {
8f21d119 MK	188	usb_free_urb(iforce->irq);
	189	usb_free_urb(iforce->out);
	190	usb_free_urb(iforce->ctrl);
1da177e4 LT	191	kfree(iforce);
	192	}
	193
17dd3f0f	194	return err;
1da177e4 LT	195	}
1da177e4 LT	196
1da177e4 LT	197	static void iforce_usb_disconnect(struct usb_interface *intf)
	198	{
	199	struct iforce *iforce = usb_get_intfdata(intf);
1da177e4 LT	200
1da177e4 LT	201	usb_set_intfdata(intf, NULL);
1da177e4	202
98b7fb04 DT	203	input_unregister_device(iforce->dev);
	204
	205	usb_free_urb(iforce->irq);
	206	usb_free_urb(iforce->out);
	207	usb_free_urb(iforce->ctrl);
	208
	209	kfree(iforce);
1da177e4 LT	210	}
	211
	212	static struct usb_device_id iforce_usb_ids [] = {
	213	{ USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */
	214	{ USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */
	215	{ USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */
	216	{ USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */
	217	{ USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */
	218	{ USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */
	219	{ USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */
68947b8f	220	{ USB_DEVICE(0x061c, 0xc084) }, /* ACT LABS Force RS */
1da177e4	221	{ USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */
d861f7bf	222	{ USB_DEVICE(0x06f8, 0x0003) }, /* Guillemot Jet Leader Force Feedback */
1da177e4	223	{ USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */
18098a6c	224	{ USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */
1da177e4 LT	225	{ } /* Terminating entry */
	226	};
	227
	228	MODULE_DEVICE_TABLE (usb, iforce_usb_ids);
	229
	230	struct usb_driver iforce_usb_driver = {
1da177e4 LT	231	.name = "iforce",
	232	.probe = iforce_usb_probe,
	233	.disconnect = iforce_usb_disconnect,
	234	.id_table = iforce_usb_ids,
	235	};