[deliverable/linux.git] / drivers / usb / storage / onetouch.c

/*
 * Support for the Maxtor OneTouch USB hard drive's button
 *
 * Current development and maintenance by:
 *	Copyright (c) 2005 Nick Sillik <n.sillik@temple.edu>
 *
 * Initial work by:
 *	Copyright (c) 2003 Erik Thyren <erth7411@student.uu.se>
 *
 * Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann)
 *
 */

/*
 * 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/kernel.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/usb/input.h>
#include "usb.h"
#include "debug.h"

#define ONETOUCH_PKT_LEN        0x02
#define ONETOUCH_BUTTON         KEY_PROG1

static int onetouch_connect_input(struct us_data *ss);
static void onetouch_release_input(void *onetouch_);

struct usb_onetouch {
	char name[128];
	char phys[64];
	struct input_dev *dev;	/* input device interface */
	struct usb_device *udev;	/* usb device */

	struct urb *irq;	/* urb for interrupt in report */
	unsigned char *data;	/* input data */
	dma_addr_t data_dma;
	unsigned int is_open:1;
};


/*
 * The table of devices
 */
#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
		    vendorName, productName, useProtocol, useTransport, \
		    initFunction, flags) \
{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }

struct usb_device_id onetouch_usb_ids[] = {
#	include "unusual_onetouch.h"
	{ }		/* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, onetouch_usb_ids);

#undef UNUSUAL_DEV

/*
 * The flags table
 */
#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
		    vendor_name, product_name, use_protocol, use_transport, \
		    init_function, Flags) \
{ \
	.vendorName = vendor_name,	\
	.productName = product_name,	\
	.useProtocol = use_protocol,	\
	.useTransport = use_transport,	\
	.initFunction = init_function,	\
}

static struct us_unusual_dev onetouch_unusual_dev_list[] = {
#	include "unusual_onetouch.h"
	{ }		/* Terminating entry */
};

#undef UNUSUAL_DEV


static void usb_onetouch_irq(struct urb *urb)
{
	struct usb_onetouch *onetouch = urb->context;
	signed char *data = onetouch->data;
	struct input_dev *dev = onetouch->dev;
	int status = urb->status;
	int retval;

	switch (status) {
	case 0:			/* success */
		break;
	case -ECONNRESET:	/* unlink */
	case -ENOENT:
	case -ESHUTDOWN:
		return;
	/* -EPIPE:  should clear the halt */
	default:		/* error */
		goto resubmit;
	}

	input_report_key(dev, ONETOUCH_BUTTON, data[0] & 0x02);
	input_sync(dev);

resubmit:
	retval = usb_submit_urb (urb, GFP_ATOMIC);
	if (retval)
		dev_err(&dev->dev, "can't resubmit intr, %s-%s/input0, "
			"retval %d\n", onetouch->udev->bus->bus_name,
			onetouch->udev->devpath, retval);
}

static int usb_onetouch_open(struct input_dev *dev)
{
	struct usb_onetouch *onetouch = input_get_drvdata(dev);

	onetouch->is_open = 1;
	onetouch->irq->dev = onetouch->udev;
	if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {
		dev_err(&dev->dev, "usb_submit_urb failed\n");
		return -EIO;
	}

	return 0;
}

static void usb_onetouch_close(struct input_dev *dev)
{
	struct usb_onetouch *onetouch = input_get_drvdata(dev);

	usb_kill_urb(onetouch->irq);
	onetouch->is_open = 0;
}

#ifdef CONFIG_PM
static void usb_onetouch_pm_hook(struct us_data *us, int action)
{
	struct usb_onetouch *onetouch = (struct usb_onetouch *) us->extra;

	if (onetouch->is_open) {
		switch (action) {
		case US_SUSPEND:
			usb_kill_urb(onetouch->irq);
			break;
		case US_RESUME:
			if (usb_submit_urb(onetouch->irq, GFP_KERNEL) != 0)
				dev_err(&onetouch->irq->dev->dev,
					"usb_submit_urb failed\n");
			break;
		default:
			break;
		}
	}
}
#endif /* CONFIG_PM */

static int onetouch_connect_input(struct us_data *ss)
{
	struct usb_device *udev = ss->pusb_dev;
	struct usb_host_interface *interface;
	struct usb_endpoint_descriptor *endpoint;
	struct usb_onetouch *onetouch;
	struct input_dev *input_dev;
	int pipe, maxp;
	int error = -ENOMEM;

	interface = ss->pusb_intf->cur_altsetting;

	if (interface->desc.bNumEndpoints != 3)
		return -ENODEV;

	endpoint = &interface->endpoint[2].desc;
	if (!usb_endpoint_is_int_in(endpoint))
		return -ENODEV;

	pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
	maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));

	onetouch = kzalloc(sizeof(struct usb_onetouch), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!onetouch || !input_dev)
		goto fail1;

	onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN,
					  GFP_ATOMIC, &onetouch->data_dma);
	if (!onetouch->data)
		goto fail1;

	onetouch->irq = usb_alloc_urb(0, GFP_KERNEL);
	if (!onetouch->irq)
		goto fail2;

	onetouch->udev = udev;
	onetouch->dev = input_dev;

	if (udev->manufacturer)
		strlcpy(onetouch->name, udev->manufacturer,
			sizeof(onetouch->name));
	if (udev->product) {
		if (udev->manufacturer)
			strlcat(onetouch->name, " ", sizeof(onetouch->name));
		strlcat(onetouch->name, udev->product, sizeof(onetouch->name));
	}

	if (!strlen(onetouch->name))
		snprintf(onetouch->name, sizeof(onetouch->name),
			 "Maxtor Onetouch %04x:%04x",
			 le16_to_cpu(udev->descriptor.idVendor),
			 le16_to_cpu(udev->descriptor.idProduct));

	usb_make_path(udev, onetouch->phys, sizeof(onetouch->phys));
	strlcat(onetouch->phys, "/input0", sizeof(onetouch->phys));

	input_dev->name = onetouch->name;
	input_dev->phys = onetouch->phys;
	usb_to_input_id(udev, &input_dev->id);
	input_dev->dev.parent = &udev->dev;

	set_bit(EV_KEY, input_dev->evbit);
	set_bit(ONETOUCH_BUTTON, input_dev->keybit);
	clear_bit(0, input_dev->keybit);

	input_set_drvdata(input_dev, onetouch);

	input_dev->open = usb_onetouch_open;
	input_dev->close = usb_onetouch_close;

	usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data,
			 (maxp > 8 ? 8 : maxp),
			 usb_onetouch_irq, onetouch, endpoint->bInterval);
	onetouch->irq->transfer_dma = onetouch->data_dma;
	onetouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

	ss->extra_destructor = onetouch_release_input;
	ss->extra = onetouch;
#ifdef CONFIG_PM
	ss->suspend_resume_hook = usb_onetouch_pm_hook;
#endif

	error = input_register_device(onetouch->dev);
	if (error)
		goto fail3;

	return 0;

 fail3:	usb_free_urb(onetouch->irq);
 fail2:	usb_buffer_free(udev, ONETOUCH_PKT_LEN,
			onetouch->data, onetouch->data_dma);
 fail1:	kfree(onetouch);
	input_free_device(input_dev);
	return error;
}

static void onetouch_release_input(void *onetouch_)
{
	struct usb_onetouch *onetouch = (struct usb_onetouch *) onetouch_;

	if (onetouch) {
		usb_kill_urb(onetouch->irq);
		input_unregister_device(onetouch->dev);
		usb_free_urb(onetouch->irq);
		usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN,
				onetouch->data, onetouch->data_dma);
	}
}

static int onetouch_probe(struct usb_interface *intf,
			 const struct usb_device_id *id)
{
	struct us_data *us;
	int result;

	result = usb_stor_probe1(&us, intf, id,
			(id - onetouch_usb_ids) + onetouch_unusual_dev_list);
	if (result)
		return result;

	/* Use default transport and protocol */

	result = usb_stor_probe2(us);
	return result;
}

static struct usb_driver onetouch_driver = {
	.name =		"ums-onetouch",
	.probe =	onetouch_probe,
	.disconnect =	usb_stor_disconnect,
	.suspend =	usb_stor_suspend,
	.resume =	usb_stor_resume,
	.reset_resume =	usb_stor_reset_resume,
	.pre_reset =	usb_stor_pre_reset,
	.post_reset =	usb_stor_post_reset,
	.id_table =	onetouch_usb_ids,
	.soft_unbind =	1,
};

static int __init onetouch_init(void)
{
	return usb_register(&onetouch_driver);
}

static void __exit onetouch_exit(void)
{
	usb_deregister(&onetouch_driver);
}

module_init(onetouch_init);
module_exit(onetouch_exit);
Commit	Line	Data
34008dbf MD	1	/*
	2	* Support for the Maxtor OneTouch USB hard drive's button
	3	*
	4	* Current development and maintenance by:
	5	* Copyright (c) 2005 Nick Sillik <n.sillik@temple.edu>
	6	*
	7	* Initial work by:
88789672	8	* Copyright (c) 2003 Erik Thyren <erth7411@student.uu.se>
34008dbf MD	9	*
	10	* Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann)
	11	*
	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	*/
	30
34008dbf MD	31	#include <linux/kernel.h>
	32	#include <linux/input.h>
	33	#include <linux/init.h>
	34	#include <linux/slab.h>
	35	#include <linux/module.h>
ae0dadcf	36	#include <linux/usb/input.h>
34008dbf	37	#include "usb.h"
34008dbf MD	38	#include "debug.h"
34008dbf MD	39
9cfb95ef AS	40	#define ONETOUCH_PKT_LEN 0x02
	41	#define ONETOUCH_BUTTON KEY_PROG1
	42
	43	static int onetouch_connect_input(struct us_data *ss);
43c1e98c	44	static void onetouch_release_input(void *onetouch_);
34008dbf MD	45
	46	struct usb_onetouch {
	47	char name[128];
	48	char phys[64];
88789672	49	struct input_dev dev; / input device interface */
34008dbf MD	50	struct usb_device udev; / usb device */
	51
	52	struct urb irq; / urb for interrupt in report */
	53	unsigned char data; / input data */
	54	dma_addr_t data_dma;
7931e1c6	55	unsigned int is_open:1;
34008dbf MD	56	};
34008dbf MD	57
9cfb95ef AS	58
	59	/*
	60	* The table of devices
	61	*/
	62	#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
	63	vendorName, productName, useProtocol, useTransport, \
	64	initFunction, flags) \
	65	{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
	66	.driver_info = (flags)\|(USB_US_TYPE_STOR<<24) }
	67
	68	struct usb_device_id onetouch_usb_ids[] = {
	69	# include "unusual_onetouch.h"
	70	{ } /* Terminating entry */
	71	};
	72	MODULE_DEVICE_TABLE(usb, onetouch_usb_ids);
	73
	74	#undef UNUSUAL_DEV
	75
	76	/*
	77	* The flags table
	78	*/
	79	#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
	80	vendor_name, product_name, use_protocol, use_transport, \
	81	init_function, Flags) \
	82	{ \
	83	.vendorName = vendor_name, \
	84	.productName = product_name, \
	85	.useProtocol = use_protocol, \
	86	.useTransport = use_transport, \
	87	.initFunction = init_function, \
	88	}
	89
	90	static struct us_unusual_dev onetouch_unusual_dev_list[] = {
	91	# include "unusual_onetouch.h"
	92	{ } /* Terminating entry */
	93	};
	94
	95	#undef UNUSUAL_DEV
	96
	97
7d12e780	98	static void usb_onetouch_irq(struct urb *urb)
34008dbf MD	99	{
	100	struct usb_onetouch *onetouch = urb->context;
	101	signed char *data = onetouch->data;
88789672	102	struct input_dev *dev = onetouch->dev;
62e5a330 GKH	103	int status = urb->status;
62e5a330 GKH	104	int retval;
34008dbf	105
62e5a330	106	switch (status) {
34008dbf MD	107	case 0: /* success */
	108	break;
	109	case -ECONNRESET: /* unlink */
	110	case -ENOENT:
	111	case -ESHUTDOWN:
	112	return;
	113	/* -EPIPE: should clear the halt */
	114	default: /* error */
	115	goto resubmit;
	116	}
	117
88789672	118	input_report_key(dev, ONETOUCH_BUTTON, data[0] & 0x02);
34008dbf	119	input_sync(dev);
88789672	120
34008dbf	121	resubmit:
62e5a330 GKH	122	retval = usb_submit_urb (urb, GFP_ATOMIC);
62e5a330 GKH	123	if (retval)
802f389a GKH	124	dev_err(&dev->dev, "can't resubmit intr, %s-%s/input0, "
802f389a GKH	125	"retval %d\n", onetouch->udev->bus->bus_name,
62e5a330	126	onetouch->udev->devpath, retval);
34008dbf MD	127	}
	128
	129	static int usb_onetouch_open(struct input_dev *dev)
	130	{
09b7002d	131	struct usb_onetouch *onetouch = input_get_drvdata(dev);
34008dbf	132
7931e1c6	133	onetouch->is_open = 1;
34008dbf MD	134	onetouch->irq->dev = onetouch->udev;
34008dbf MD	135	if (usb_submit_urb(onetouch->irq, GFP_KERNEL)) {
802f389a	136	dev_err(&dev->dev, "usb_submit_urb failed\n");
34008dbf MD	137	return -EIO;
	138	}
	139
	140	return 0;
	141	}
	142
	143	static void usb_onetouch_close(struct input_dev *dev)
	144	{
09b7002d	145	struct usb_onetouch *onetouch = input_get_drvdata(dev);
34008dbf MD	146
34008dbf MD	147	usb_kill_urb(onetouch->irq);
7931e1c6	148	onetouch->is_open = 0;
34008dbf MD	149	}
34008dbf MD	150
7931e1c6 MD	151	#ifdef CONFIG_PM
	152	static void usb_onetouch_pm_hook(struct us_data *us, int action)
	153	{
	154	struct usb_onetouch onetouch = (struct usb_onetouch ) us->extra;
	155
	156	if (onetouch->is_open) {
	157	switch (action) {
	158	case US_SUSPEND:
	159	usb_kill_urb(onetouch->irq);
	160	break;
	161	case US_RESUME:
	162	if (usb_submit_urb(onetouch->irq, GFP_KERNEL) != 0)
802f389a GKH	163	dev_err(&onetouch->irq->dev->dev,
802f389a GKH	164	"usb_submit_urb failed\n");
7931e1c6 MD	165	break;
	166	default:
	167	break;
	168	}
	169	}
	170	}
	171	#endif /* CONFIG_PM */
	172
9cfb95ef	173	static int onetouch_connect_input(struct us_data *ss)
34008dbf MD	174	{
	175	struct usb_device *udev = ss->pusb_dev;
	176	struct usb_host_interface *interface;
	177	struct usb_endpoint_descriptor *endpoint;
	178	struct usb_onetouch *onetouch;
88789672	179	struct input_dev *input_dev;
34008dbf	180	int pipe, maxp;
17efe155	181	int error = -ENOMEM;
34008dbf MD	182
	183	interface = ss->pusb_intf->cur_altsetting;
	184
d6450e19 NS	185	if (interface->desc.bNumEndpoints != 3)
	186	return -ENODEV;
	187
34008dbf	188	endpoint = &interface->endpoint[2].desc;
66722a19	189	if (!usb_endpoint_is_int_in(endpoint))
34008dbf MD	190	return -ENODEV;
	191
	192	pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
	193	maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
	194
88789672 DT	195	onetouch = kzalloc(sizeof(struct usb_onetouch), GFP_KERNEL);
	196	input_dev = input_allocate_device();
	197	if (!onetouch \|\| !input_dev)
	198	goto fail1;
34008dbf	199
d6450e19	200	onetouch->data = usb_buffer_alloc(udev, ONETOUCH_PKT_LEN,
54e6ecb2	201	GFP_ATOMIC, &onetouch->data_dma);
88789672 DT	202	if (!onetouch->data)
88789672 DT	203	goto fail1;
34008dbf MD	204
34008dbf MD	205	onetouch->irq = usb_alloc_urb(0, GFP_KERNEL);
88789672 DT	206	if (!onetouch->irq)
88789672 DT	207	goto fail2;
34008dbf MD	208
34008dbf MD	209	onetouch->udev = udev;
88789672	210	onetouch->dev = input_dev;
34008dbf	211
88789672 DT	212	if (udev->manufacturer)
	213	strlcpy(onetouch->name, udev->manufacturer,
	214	sizeof(onetouch->name));
	215	if (udev->product) {
	216	if (udev->manufacturer)
	217	strlcat(onetouch->name, " ", sizeof(onetouch->name));
	218	strlcat(onetouch->name, udev->product, sizeof(onetouch->name));
	219	}
34008dbf	220
88789672 DT	221	if (!strlen(onetouch->name))
	222	snprintf(onetouch->name, sizeof(onetouch->name),
	223	"Maxtor Onetouch %04x:%04x",
	224	le16_to_cpu(udev->descriptor.idVendor),
	225	le16_to_cpu(udev->descriptor.idProduct));
34008dbf	226
88789672 DT	227	usb_make_path(udev, onetouch->phys, sizeof(onetouch->phys));
88789672 DT	228	strlcat(onetouch->phys, "/input0", sizeof(onetouch->phys));
34008dbf	229
88789672 DT	230	input_dev->name = onetouch->name;
	231	input_dev->phys = onetouch->phys;
	232	usb_to_input_id(udev, &input_dev->id);
09b7002d	233	input_dev->dev.parent = &udev->dev;
34008dbf	234
88789672 DT	235	set_bit(EV_KEY, input_dev->evbit);
	236	set_bit(ONETOUCH_BUTTON, input_dev->keybit);
	237	clear_bit(0, input_dev->keybit);
34008dbf	238
09b7002d DT	239	input_set_drvdata(input_dev, onetouch);
09b7002d DT	240
88789672 DT	241	input_dev->open = usb_onetouch_open;
88789672 DT	242	input_dev->close = usb_onetouch_close;
34008dbf MD	243
	244	usb_fill_int_urb(onetouch->irq, udev, pipe, onetouch->data,
	245	(maxp > 8 ? 8 : maxp),
	246	usb_onetouch_irq, onetouch, endpoint->bInterval);
	247	onetouch->irq->transfer_dma = onetouch->data_dma;
	248	onetouch->irq->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
	249
	250	ss->extra_destructor = onetouch_release_input;
	251	ss->extra = onetouch;
7931e1c6 MD	252	#ifdef CONFIG_PM
	253	ss->suspend_resume_hook = usb_onetouch_pm_hook;
	254	#endif
34008dbf	255
17efe155 DT	256	error = input_register_device(onetouch->dev);
	257	if (error)
	258	goto fail3;
34008dbf MD	259
34008dbf MD	260	return 0;
88789672	261
17efe155	262	fail3: usb_free_urb(onetouch->irq);
88789672 DT	263	fail2: usb_buffer_free(udev, ONETOUCH_PKT_LEN,
	264	onetouch->data, onetouch->data_dma);
	265	fail1: kfree(onetouch);
	266	input_free_device(input_dev);
17efe155	267	return error;
34008dbf MD	268	}
34008dbf MD	269
43c1e98c	270	static void onetouch_release_input(void *onetouch_)
34008dbf MD	271	{
	272	struct usb_onetouch onetouch = (struct usb_onetouch ) onetouch_;
	273
	274	if (onetouch) {
	275	usb_kill_urb(onetouch->irq);
88789672	276	input_unregister_device(onetouch->dev);
34008dbf MD	277	usb_free_urb(onetouch->irq);
	278	usb_buffer_free(onetouch->udev, ONETOUCH_PKT_LEN,
	279	onetouch->data, onetouch->data_dma);
34008dbf MD	280	}
34008dbf MD	281	}
9cfb95ef AS	282
	283	static int onetouch_probe(struct usb_interface *intf,
	284	const struct usb_device_id *id)
	285	{
	286	struct us_data *us;
	287	int result;
	288
	289	result = usb_stor_probe1(&us, intf, id,
	290	(id - onetouch_usb_ids) + onetouch_unusual_dev_list);
	291	if (result)
	292	return result;
	293
	294	/* Use default transport and protocol */
	295
	296	result = usb_stor_probe2(us);
	297	return result;
	298	}
	299
	300	static struct usb_driver onetouch_driver = {
	301	.name = "ums-onetouch",
	302	.probe = onetouch_probe,
	303	.disconnect = usb_stor_disconnect,
	304	.suspend = usb_stor_suspend,
	305	.resume = usb_stor_resume,
	306	.reset_resume = usb_stor_reset_resume,
	307	.pre_reset = usb_stor_pre_reset,
	308	.post_reset = usb_stor_post_reset,
	309	.id_table = onetouch_usb_ids,
	310	.soft_unbind = 1,
	311	};
	312
	313	static int __init onetouch_init(void)
	314	{
	315	return usb_register(&onetouch_driver);
	316	}
	317
	318	static void __exit onetouch_exit(void)
	319	{
	320	usb_deregister(&onetouch_driver);
	321	}
	322
	323	module_init(onetouch_init);
	324	module_exit(onetouch_exit);