[deliverable/linux.git] / drivers / usb / input / usbkbd.c

/*
 * $Id: usbkbd.c,v 1.27 2001/12/27 10:37:41 vojtech Exp $
 *
 *  Copyright (c) 1999-2001 Vojtech Pavlik
 *
 *  USB HIDBP Keyboard support
 */

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

/*
 * Version Information
 */
#define DRIVER_VERSION ""
#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
#define DRIVER_DESC "USB HID Boot Protocol keyboard driver"
#define DRIVER_LICENSE "GPL"

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE(DRIVER_LICENSE);

static unsigned char usb_kbd_keycode[256] = {
	  0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
	 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
	  4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
	 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
	 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
	105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
	 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
	191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
	115,114,  0,  0,  0,121,  0, 89, 93,124, 92, 94, 95,  0,  0,  0,
	122,123, 90, 91, 85,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
	  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
	 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
	150,158,159,128,136,177,178,176,142,152,173,140
};

struct usb_kbd {
	struct input_dev *dev;
	struct usb_device *usbdev;
	unsigned char old[8];
	struct urb *irq, *led;
	unsigned char newleds;
	char name[128];
	char phys[64];

	unsigned char *new;
	struct usb_ctrlrequest *cr;
	unsigned char *leds;
	dma_addr_t cr_dma;
	dma_addr_t new_dma;
	dma_addr_t leds_dma;
};

static void usb_kbd_irq(struct urb *urb)
{
	struct usb_kbd *kbd = urb->context;
	int i;

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

	for (i = 0; i < 8; i++)
		input_report_key(kbd->dev, usb_kbd_keycode[i + 224], (kbd->new[0] >> i) & 1);

	for (i = 2; i < 8; i++) {

		if (kbd->old[i] > 3 && memscan(kbd->new + 2, kbd->old[i], 6) == kbd->new + 8) {
			if (usb_kbd_keycode[kbd->old[i]])
				input_report_key(kbd->dev, usb_kbd_keycode[kbd->old[i]], 0);
			else
				info("Unknown key (scancode %#x) released.", kbd->old[i]);
		}

		if (kbd->new[i] > 3 && memscan(kbd->old + 2, kbd->new[i], 6) == kbd->old + 8) {
			if (usb_kbd_keycode[kbd->new[i]])
				input_report_key(kbd->dev, usb_kbd_keycode[kbd->new[i]], 1);
			else
				info("Unknown key (scancode %#x) pressed.", kbd->new[i]);
		}
	}

	input_sync(kbd->dev);

	memcpy(kbd->old, kbd->new, 8);

resubmit:
	i = usb_submit_urb (urb, SLAB_ATOMIC);
	if (i)
		err ("can't resubmit intr, %s-%s/input0, status %d",
				kbd->usbdev->bus->bus_name,
				kbd->usbdev->devpath, i);
}

static int usb_kbd_event(struct input_dev *dev, unsigned int type,
			 unsigned int code, int value)
{
	struct usb_kbd *kbd = dev->private;

	if (type != EV_LED)
		return -1;


	kbd->newleds = (!!test_bit(LED_KANA,    dev->led) << 3) | (!!test_bit(LED_COMPOSE, dev->led) << 3) |
		       (!!test_bit(LED_SCROLLL, dev->led) << 2) | (!!test_bit(LED_CAPSL,   dev->led) << 1) |
		       (!!test_bit(LED_NUML,    dev->led));

	if (kbd->led->status == -EINPROGRESS)
		return 0;

	if (*(kbd->leds) == kbd->newleds)
		return 0;

	*(kbd->leds) = kbd->newleds;
	kbd->led->dev = kbd->usbdev;
	if (usb_submit_urb(kbd->led, GFP_ATOMIC))
		err("usb_submit_urb(leds) failed");

	return 0;
}

static void usb_kbd_led(struct urb *urb)
{
	struct usb_kbd *kbd = urb->context;

	if (urb->status)
		warn("led urb status %d received", urb->status);

	if (*(kbd->leds) == kbd->newleds)
		return;

	*(kbd->leds) = kbd->newleds;
	kbd->led->dev = kbd->usbdev;
	if (usb_submit_urb(kbd->led, GFP_ATOMIC))
		err("usb_submit_urb(leds) failed");
}

static int usb_kbd_open(struct input_dev *dev)
{
	struct usb_kbd *kbd = dev->private;

	kbd->irq->dev = kbd->usbdev;
	if (usb_submit_urb(kbd->irq, GFP_KERNEL))
		return -EIO;

	return 0;
}

static void usb_kbd_close(struct input_dev *dev)
{
	struct usb_kbd *kbd = dev->private;

	usb_kill_urb(kbd->irq);
}

static int usb_kbd_alloc_mem(struct usb_device *dev, struct usb_kbd *kbd)
{
	if (!(kbd->irq = usb_alloc_urb(0, GFP_KERNEL)))
		return -1;
	if (!(kbd->led = usb_alloc_urb(0, GFP_KERNEL)))
		return -1;
	if (!(kbd->new = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &kbd->new_dma)))
		return -1;
	if (!(kbd->cr = usb_buffer_alloc(dev, sizeof(struct usb_ctrlrequest), SLAB_ATOMIC, &kbd->cr_dma)))
		return -1;
	if (!(kbd->leds = usb_buffer_alloc(dev, 1, SLAB_ATOMIC, &kbd->leds_dma)))
		return -1;

	return 0;
}

static void usb_kbd_free_mem(struct usb_device *dev, struct usb_kbd *kbd)
{
	usb_free_urb(kbd->irq);
	usb_free_urb(kbd->led);
	if (kbd->new)
		usb_buffer_free(dev, 8, kbd->new, kbd->new_dma);
	if (kbd->cr)
		usb_buffer_free(dev, sizeof(struct usb_ctrlrequest), kbd->cr, kbd->cr_dma);
	if (kbd->leds)
		usb_buffer_free(dev, 1, kbd->leds, kbd->leds_dma);
}

static int usb_kbd_probe(struct usb_interface *iface,
			 const struct usb_device_id *id)
{
	struct usb_device *dev = interface_to_usbdev(iface);
	struct usb_host_interface *interface;
	struct usb_endpoint_descriptor *endpoint;
	struct usb_kbd *kbd;
	struct input_dev *input_dev;
	int i, pipe, maxp;

	interface = iface->cur_altsetting;

	if (interface->desc.bNumEndpoints != 1)
		return -ENODEV;

	endpoint = &interface->endpoint[0].desc;
	if (!usb_endpoint_is_int_in(endpoint))
		return -ENODEV;

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

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

	if (usb_kbd_alloc_mem(dev, kbd))
		goto fail2;

	kbd->usbdev = dev;
	kbd->dev = input_dev;

	if (dev->manufacturer)
		strlcpy(kbd->name, dev->manufacturer, sizeof(kbd->name));

	if (dev->product) {
		if (dev->manufacturer)
			strlcat(kbd->name, " ", sizeof(kbd->name));
		strlcat(kbd->name, dev->product, sizeof(kbd->name));
	}

	if (!strlen(kbd->name))
		snprintf(kbd->name, sizeof(kbd->name),
			 "USB HIDBP Keyboard %04x:%04x",
			 le16_to_cpu(dev->descriptor.idVendor),
			 le16_to_cpu(dev->descriptor.idProduct));

	usb_make_path(dev, kbd->phys, sizeof(kbd->phys));
	strlcpy(kbd->phys, "/input0", sizeof(kbd->phys));

	input_dev->name = kbd->name;
	input_dev->phys = kbd->phys;
	usb_to_input_id(dev, &input_dev->id);
	input_dev->cdev.dev = &iface->dev;
	input_dev->private = kbd;

	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
	input_dev->ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL) | BIT(LED_COMPOSE) | BIT(LED_KANA);

	for (i = 0; i < 255; i++)
		set_bit(usb_kbd_keycode[i], input_dev->keybit);
	clear_bit(0, input_dev->keybit);

	input_dev->event = usb_kbd_event;
	input_dev->open = usb_kbd_open;
	input_dev->close = usb_kbd_close;

	usb_fill_int_urb(kbd->irq, dev, pipe,
			 kbd->new, (maxp > 8 ? 8 : maxp),
			 usb_kbd_irq, kbd, endpoint->bInterval);
	kbd->irq->transfer_dma = kbd->new_dma;
	kbd->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

	kbd->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE;
	kbd->cr->bRequest = 0x09;
	kbd->cr->wValue = cpu_to_le16(0x200);
	kbd->cr->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
	kbd->cr->wLength = cpu_to_le16(1);

	usb_fill_control_urb(kbd->led, dev, usb_sndctrlpipe(dev, 0),
			     (void *) kbd->cr, kbd->leds, 1,
			     usb_kbd_led, kbd);
	kbd->led->setup_dma = kbd->cr_dma;
	kbd->led->transfer_dma = kbd->leds_dma;
	kbd->led->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);

	input_register_device(kbd->dev);

	usb_set_intfdata(iface, kbd);
	return 0;

fail2:	usb_kbd_free_mem(dev, kbd);
fail1:	input_free_device(input_dev);
	kfree(kbd);
	return -ENOMEM;
}

static void usb_kbd_disconnect(struct usb_interface *intf)
{
	struct usb_kbd *kbd = usb_get_intfdata (intf);

	usb_set_intfdata(intf, NULL);
	if (kbd) {
		usb_kill_urb(kbd->irq);
		input_unregister_device(kbd->dev);
		usb_kbd_free_mem(interface_to_usbdev(intf), kbd);
		kfree(kbd);
	}
}

static struct usb_device_id usb_kbd_id_table [] = {
	{ USB_INTERFACE_INFO(3, 1, 1) },
	{ }						/* Terminating entry */
};

MODULE_DEVICE_TABLE (usb, usb_kbd_id_table);

static struct usb_driver usb_kbd_driver = {
	.name =		"usbkbd",
	.probe =	usb_kbd_probe,
	.disconnect =	usb_kbd_disconnect,
	.id_table =	usb_kbd_id_table,
};

static int __init usb_kbd_init(void)
{
	int result = usb_register(&usb_kbd_driver);
	if (result == 0)
		info(DRIVER_VERSION ":" DRIVER_DESC);
	return result;
}

static void __exit usb_kbd_exit(void)
{
	usb_deregister(&usb_kbd_driver);
}

module_init(usb_kbd_init);
module_exit(usb_kbd_exit);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* $Id: usbkbd.c,v 1.27 2001/12/27 10:37:41 vojtech Exp $
	3	*
	4	* Copyright (c) 1999-2001 Vojtech Pavlik
	5	*
	6	* USB HIDBP Keyboard support
	7	*/
	8
	9	/*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
05f091ab	12	* the Free Software Foundation; either version 2 of the License, or
1da177e4	13	* (at your option) any later version.
05f091ab	14	*
1da177e4 LT	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
05f091ab	19	*
1da177e4 LT	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
05f091ab	23	*
1da177e4 LT	24	* Should you need to contact me, the author, you can do so either by
	25	* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
	26	* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
	27	*/
	28
	29	#include <linux/kernel.h>
	30	#include <linux/slab.h>
	31	#include <linux/module.h>
1da177e4	32	#include <linux/init.h>
ae0dadcf	33	#include <linux/usb/input.h>
1da177e4 LT	34
	35	/*
	36	* Version Information
	37	*/
	38	#define DRIVER_VERSION ""
	39	#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
	40	#define DRIVER_DESC "USB HID Boot Protocol keyboard driver"
	41	#define DRIVER_LICENSE "GPL"
	42
	43	MODULE_AUTHOR(DRIVER_AUTHOR);
	44	MODULE_DESCRIPTION(DRIVER_DESC);
	45	MODULE_LICENSE(DRIVER_LICENSE);
	46
	47	static unsigned char usb_kbd_keycode[256] = {
	48	0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
	49	50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
	50	4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
	51	27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
	52	65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
	53	105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
	54	72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
	55	191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
	56	115,114, 0, 0, 0,121, 0, 89, 93,124, 92, 94, 95, 0, 0, 0,
	57	122,123, 90, 91, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	58	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	59	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	60	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	61	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	62	29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
	63	150,158,159,128,136,177,178,176,142,152,173,140
	64	};
	65
	66	struct usb_kbd {
c5b7c7c3	67	struct input_dev *dev;
1da177e4 LT	68	struct usb_device *usbdev;
	69	unsigned char old[8];
	70	struct urb irq, led;
	71	unsigned char newleds;
	72	char name[128];
	73	char phys[64];
1da177e4 LT	74
	75	unsigned char *new;
	76	struct usb_ctrlrequest *cr;
	77	unsigned char *leds;
	78	dma_addr_t cr_dma;
	79	dma_addr_t new_dma;
	80	dma_addr_t leds_dma;
	81	};
	82
7d12e780	83	static void usb_kbd_irq(struct urb *urb)
1da177e4 LT	84	{
	85	struct usb_kbd *kbd = urb->context;
	86	int i;
	87
	88	switch (urb->status) {
	89	case 0: /* success */
	90	break;
	91	case -ECONNRESET: /* unlink */
	92	case -ENOENT:
	93	case -ESHUTDOWN:
	94	return;
	95	/* -EPIPE: should clear the halt */
	96	default: /* error */
	97	goto resubmit;
	98	}
	99
1da177e4	100	for (i = 0; i < 8; i++)
c5b7c7c3	101	input_report_key(kbd->dev, usb_kbd_keycode[i + 224], (kbd->new[0] >> i) & 1);
1da177e4 LT	102
	103	for (i = 2; i < 8; i++) {
	104
	105	if (kbd->old[i] > 3 && memscan(kbd->new + 2, kbd->old[i], 6) == kbd->new + 8) {
	106	if (usb_kbd_keycode[kbd->old[i]])
c5b7c7c3	107	input_report_key(kbd->dev, usb_kbd_keycode[kbd->old[i]], 0);
1da177e4 LT	108	else
	109	info("Unknown key (scancode %#x) released.", kbd->old[i]);
	110	}
	111
	112	if (kbd->new[i] > 3 && memscan(kbd->old + 2, kbd->new[i], 6) == kbd->old + 8) {
	113	if (usb_kbd_keycode[kbd->new[i]])
c5b7c7c3	114	input_report_key(kbd->dev, usb_kbd_keycode[kbd->new[i]], 1);
1da177e4 LT	115	else
	116	info("Unknown key (scancode %#x) pressed.", kbd->new[i]);
	117	}
	118	}
	119
c5b7c7c3	120	input_sync(kbd->dev);
1da177e4 LT	121
	122	memcpy(kbd->old, kbd->new, 8);
	123
	124	resubmit:
	125	i = usb_submit_urb (urb, SLAB_ATOMIC);
	126	if (i)
	127	err ("can't resubmit intr, %s-%s/input0, status %d",
	128	kbd->usbdev->bus->bus_name,
	129	kbd->usbdev->devpath, i);
	130	}
	131
be5e3383 AB	132	static int usb_kbd_event(struct input_dev *dev, unsigned int type,
be5e3383 AB	133	unsigned int code, int value)
1da177e4 LT	134	{
	135	struct usb_kbd *kbd = dev->private;
	136
	137	if (type != EV_LED)
	138	return -1;
	139
	140
	141	kbd->newleds = (!!test_bit(LED_KANA, dev->led) << 3) \| (!!test_bit(LED_COMPOSE, dev->led) << 3) \|
	142	(!!test_bit(LED_SCROLLL, dev->led) << 2) \| (!!test_bit(LED_CAPSL, dev->led) << 1) \|
	143	(!!test_bit(LED_NUML, dev->led));
	144
	145	if (kbd->led->status == -EINPROGRESS)
	146	return 0;
	147
	148	if (*(kbd->leds) == kbd->newleds)
	149	return 0;
	150
	151	*(kbd->leds) = kbd->newleds;
	152	kbd->led->dev = kbd->usbdev;
	153	if (usb_submit_urb(kbd->led, GFP_ATOMIC))
	154	err("usb_submit_urb(leds) failed");
	155
	156	return 0;
	157	}
	158
7d12e780	159	static void usb_kbd_led(struct urb *urb)
1da177e4 LT	160	{
	161	struct usb_kbd *kbd = urb->context;
	162
	163	if (urb->status)
	164	warn("led urb status %d received", urb->status);
05f091ab	165
1da177e4 LT	166	if (*(kbd->leds) == kbd->newleds)
	167	return;
	168
	169	*(kbd->leds) = kbd->newleds;
	170	kbd->led->dev = kbd->usbdev;
	171	if (usb_submit_urb(kbd->led, GFP_ATOMIC))
	172	err("usb_submit_urb(leds) failed");
	173	}
	174
	175	static int usb_kbd_open(struct input_dev *dev)
	176	{
	177	struct usb_kbd *kbd = dev->private;
	178
1da177e4	179	kbd->irq->dev = kbd->usbdev;
65cde54b	180	if (usb_submit_urb(kbd->irq, GFP_KERNEL))
1da177e4	181	return -EIO;
1da177e4 LT	182
	183	return 0;
	184	}
	185
	186	static void usb_kbd_close(struct input_dev *dev)
	187	{
	188	struct usb_kbd *kbd = dev->private;
	189
65cde54b	190	usb_kill_urb(kbd->irq);
1da177e4 LT	191	}
	192
	193	static int usb_kbd_alloc_mem(struct usb_device dev, struct usb_kbd kbd)
	194	{
	195	if (!(kbd->irq = usb_alloc_urb(0, GFP_KERNEL)))
	196	return -1;
	197	if (!(kbd->led = usb_alloc_urb(0, GFP_KERNEL)))
	198	return -1;
	199	if (!(kbd->new = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &kbd->new_dma)))
	200	return -1;
	201	if (!(kbd->cr = usb_buffer_alloc(dev, sizeof(struct usb_ctrlrequest), SLAB_ATOMIC, &kbd->cr_dma)))
	202	return -1;
	203	if (!(kbd->leds = usb_buffer_alloc(dev, 1, SLAB_ATOMIC, &kbd->leds_dma)))
	204	return -1;
	205
	206	return 0;
	207	}
	208
	209	static void usb_kbd_free_mem(struct usb_device dev, struct usb_kbd kbd)
	210	{
4ba0b2ed MK	211	usb_free_urb(kbd->irq);
4ba0b2ed MK	212	usb_free_urb(kbd->led);
1da177e4 LT	213	if (kbd->new)
	214	usb_buffer_free(dev, 8, kbd->new, kbd->new_dma);
	215	if (kbd->cr)
	216	usb_buffer_free(dev, sizeof(struct usb_ctrlrequest), kbd->cr, kbd->cr_dma);
	217	if (kbd->leds)
	218	usb_buffer_free(dev, 1, kbd->leds, kbd->leds_dma);
	219	}
	220
05f091ab	221	static int usb_kbd_probe(struct usb_interface *iface,
1da177e4 LT	222	const struct usb_device_id *id)
1da177e4 LT	223	{
c5b7c7c3	224	struct usb_device *dev = interface_to_usbdev(iface);
1da177e4 LT	225	struct usb_host_interface *interface;
	226	struct usb_endpoint_descriptor *endpoint;
	227	struct usb_kbd *kbd;
c5b7c7c3	228	struct input_dev *input_dev;
1da177e4	229	int i, pipe, maxp;
1da177e4 LT	230
	231	interface = iface->cur_altsetting;
	232
	233	if (interface->desc.bNumEndpoints != 1)
	234	return -ENODEV;
	235
	236	endpoint = &interface->endpoint[0].desc;
a20c3144	237	if (!usb_endpoint_is_int_in(endpoint))
1da177e4 LT	238	return -ENODEV;
	239
	240	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
	241	maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
	242
c5b7c7c3 DT	243	kbd = kzalloc(sizeof(struct usb_kbd), GFP_KERNEL);
	244	input_dev = input_allocate_device();
	245	if (!kbd \|\| !input_dev)
	246	goto fail1;
1da177e4	247
c5b7c7c3 DT	248	if (usb_kbd_alloc_mem(dev, kbd))
c5b7c7c3 DT	249	goto fail2;
1da177e4 LT	250
1da177e4 LT	251	kbd->usbdev = dev;
c5b7c7c3 DT	252	kbd->dev = input_dev;
	253
	254	if (dev->manufacturer)
	255	strlcpy(kbd->name, dev->manufacturer, sizeof(kbd->name));
	256
	257	if (dev->product) {
	258	if (dev->manufacturer)
	259	strlcat(kbd->name, " ", sizeof(kbd->name));
	260	strlcat(kbd->name, dev->product, sizeof(kbd->name));
	261	}
	262
	263	if (!strlen(kbd->name))
	264	snprintf(kbd->name, sizeof(kbd->name),
	265	"USB HIDBP Keyboard %04x:%04x",
	266	le16_to_cpu(dev->descriptor.idVendor),
	267	le16_to_cpu(dev->descriptor.idProduct));
	268
	269	usb_make_path(dev, kbd->phys, sizeof(kbd->phys));
	270	strlcpy(kbd->phys, "/input0", sizeof(kbd->phys));
1da177e4	271
c5b7c7c3 DT	272	input_dev->name = kbd->name;
	273	input_dev->phys = kbd->phys;
	274	usb_to_input_id(dev, &input_dev->id);
	275	input_dev->cdev.dev = &iface->dev;
	276	input_dev->private = kbd;
	277
	278	input_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_LED) \| BIT(EV_REP);
	279	input_dev->ledbit[0] = BIT(LED_NUML) \| BIT(LED_CAPSL) \| BIT(LED_SCROLLL) \| BIT(LED_COMPOSE) \| BIT(LED_KANA);
1da177e4 LT	280
1da177e4 LT	281	for (i = 0; i < 255; i++)
c5b7c7c3 DT	282	set_bit(usb_kbd_keycode[i], input_dev->keybit);
c5b7c7c3 DT	283	clear_bit(0, input_dev->keybit);
05f091ab	284
c5b7c7c3 DT	285	input_dev->event = usb_kbd_event;
	286	input_dev->open = usb_kbd_open;
	287	input_dev->close = usb_kbd_close;
1da177e4 LT	288
	289	usb_fill_int_urb(kbd->irq, dev, pipe,
	290	kbd->new, (maxp > 8 ? 8 : maxp),
	291	usb_kbd_irq, kbd, endpoint->bInterval);
	292	kbd->irq->transfer_dma = kbd->new_dma;
	293	kbd->irq->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
	294
	295	kbd->cr->bRequestType = USB_TYPE_CLASS \| USB_RECIP_INTERFACE;
	296	kbd->cr->bRequest = 0x09;
	297	kbd->cr->wValue = cpu_to_le16(0x200);
	298	kbd->cr->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
	299	kbd->cr->wLength = cpu_to_le16(1);
	300
1da177e4 LT	301	usb_fill_control_urb(kbd->led, dev, usb_sndctrlpipe(dev, 0),
	302	(void *) kbd->cr, kbd->leds, 1,
	303	usb_kbd_led, kbd);
	304	kbd->led->setup_dma = kbd->cr_dma;
	305	kbd->led->transfer_dma = kbd->leds_dma;
c5b7c7c3	306	kbd->led->transfer_flags \|= (URB_NO_TRANSFER_DMA_MAP \| URB_NO_SETUP_DMA_MAP);
1da177e4	307
c5b7c7c3	308	input_register_device(kbd->dev);
1da177e4 LT	309
	310	usb_set_intfdata(iface, kbd);
	311	return 0;
c5b7c7c3 DT	312
	313	fail2: usb_kbd_free_mem(dev, kbd);
	314	fail1: input_free_device(input_dev);
	315	kfree(kbd);
	316	return -ENOMEM;
1da177e4 LT	317	}
	318
	319	static void usb_kbd_disconnect(struct usb_interface *intf)
	320	{
	321	struct usb_kbd *kbd = usb_get_intfdata (intf);
05f091ab	322
1da177e4 LT	323	usb_set_intfdata(intf, NULL);
	324	if (kbd) {
	325	usb_kill_urb(kbd->irq);
c5b7c7c3	326	input_unregister_device(kbd->dev);
1da177e4 LT	327	usb_kbd_free_mem(interface_to_usbdev(intf), kbd);
	328	kfree(kbd);
	329	}
	330	}
	331
	332	static struct usb_device_id usb_kbd_id_table [] = {
	333	{ USB_INTERFACE_INFO(3, 1, 1) },
	334	{ } /* Terminating entry */
	335	};
	336
	337	MODULE_DEVICE_TABLE (usb, usb_kbd_id_table);
	338
	339	static struct usb_driver usb_kbd_driver = {
1da177e4 LT	340	.name = "usbkbd",
	341	.probe = usb_kbd_probe,
	342	.disconnect = usb_kbd_disconnect,
	343	.id_table = usb_kbd_id_table,
	344	};
	345
	346	static int __init usb_kbd_init(void)
	347	{
	348	int result = usb_register(&usb_kbd_driver);
	349	if (result == 0)
	350	info(DRIVER_VERSION ":" DRIVER_DESC);
	351	return result;
	352	}
	353
	354	static void __exit usb_kbd_exit(void)
	355	{
	356	usb_deregister(&usb_kbd_driver);
	357	}
	358
	359	module_init(usb_kbd_init);
	360	module_exit(usb_kbd_exit);