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

/*
 *  Copyright (c) 2001-2005 Edouard TISSERANT   <edouard.tisserant@wanadoo.fr>
 *  Copyright (c) 2004-2005 Stephane VOLTZ      <svoltz@numericable.fr>
 *
 *  USB Acecad "Acecad Flair" tablet support
 *
 *  Changelog:
 *      v3.2 - Added sysfs 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
 *
 */

#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 "v3.2"
#define DRIVER_DESC    "USB Acecad Flair tablet driver"
#define DRIVER_LICENSE "GPL"
#define DRIVER_AUTHOR  "Edouard TISSERANT <edouard.tisserant@wanadoo.fr>"

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

#define USB_VENDOR_ID_ACECAD	0x0460
#define USB_DEVICE_ID_FLAIR	0x0004
#define USB_DEVICE_ID_302	0x0008

struct usb_acecad {
	char name[128];
	char phys[64];
	struct usb_device *usbdev;
	struct input_dev *input;
	struct urb *irq;

	signed char *data;
	dma_addr_t data_dma;
};

static void usb_acecad_irq(struct urb *urb, struct pt_regs *regs)
{
	struct usb_acecad *acecad = urb->context;
	unsigned char *data = acecad->data;
	struct input_dev *dev = acecad->input;
	int prox, status;

	switch (urb->status) {
		case 0:
			/* success */
			break;
		case -ECONNRESET:
		case -ENOENT:
		case -ESHUTDOWN:
			/* this urb is terminated, clean up */
			dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
			return;
		default:
			dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
			goto resubmit;
	}

	prox = (data[0] & 0x04) >> 2;
	input_report_key(dev, BTN_TOOL_PEN, prox);

	if (prox) {
		int x = data[1] | (data[2] << 8);
		int y = data[3] | (data[4] << 8);
		/* Pressure should compute the same way for flair and 302 */
		int pressure = data[5] | (data[6] << 8);
		int touch = data[0] & 0x01;
		int stylus = (data[0] & 0x10) >> 4;
		int stylus2 = (data[0] & 0x20) >> 5;
		input_report_abs(dev, ABS_X, x);
		input_report_abs(dev, ABS_Y, y);
		input_report_abs(dev, ABS_PRESSURE, pressure);
		input_report_key(dev, BTN_TOUCH, touch);
		input_report_key(dev, BTN_STYLUS, stylus);
		input_report_key(dev, BTN_STYLUS2, stylus2);
	}

	/* event termination */
	input_sync(dev);

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

static int usb_acecad_open(struct input_dev *dev)
{
	struct usb_acecad *acecad = dev->private;

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

	return 0;
}

static void usb_acecad_close(struct input_dev *dev)
{
	struct usb_acecad *acecad = dev->private;

	usb_kill_urb(acecad->irq);
}

static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
	struct usb_device *dev = interface_to_usbdev(intf);
	struct usb_host_interface *interface = intf->cur_altsetting;
	struct usb_endpoint_descriptor *endpoint;
	struct usb_acecad *acecad;
	struct input_dev *input_dev;
	int pipe, maxp;

	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));

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

	acecad->data = usb_buffer_alloc(dev, 8, SLAB_KERNEL, &acecad->data_dma);
	if (!acecad->data)
		goto fail1;

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

	acecad->usbdev = dev;
	acecad->input = input_dev;

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

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

	usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
	strlcat(acecad->phys, "/input0", sizeof(acecad->phys));

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

	input_dev->open = usb_acecad_open;
	input_dev->close = usb_acecad_close;

	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
	input_dev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
	input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
	input_dev->keybit[LONG(BTN_DIGI)] = BIT(BTN_TOOL_PEN) |BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2);

	switch (id->driver_info) {
		case 0:
			input_dev->absmax[ABS_X] = 5000;
			input_dev->absmax[ABS_Y] = 3750;
			input_dev->absmax[ABS_PRESSURE] = 512;
			if (!strlen(acecad->name))
				snprintf(acecad->name, sizeof(acecad->name),
					"USB Acecad Flair Tablet %04x:%04x",
					le16_to_cpu(dev->descriptor.idVendor),
					le16_to_cpu(dev->descriptor.idProduct));
			break;
		case 1:
			input_dev->absmax[ABS_X] = 3000;
			input_dev->absmax[ABS_Y] = 2250;
			input_dev->absmax[ABS_PRESSURE] = 1024;
			if (!strlen(acecad->name))
				snprintf(acecad->name, sizeof(acecad->name),
					"USB Acecad 302 Tablet %04x:%04x",
					le16_to_cpu(dev->descriptor.idVendor),
					le16_to_cpu(dev->descriptor.idProduct));
			break;
	}

	input_dev->absfuzz[ABS_X] = 4;
	input_dev->absfuzz[ABS_Y] = 4;

	usb_fill_int_urb(acecad->irq, dev, pipe,
			acecad->data, maxp > 8 ? 8 : maxp,
			usb_acecad_irq, acecad, endpoint->bInterval);
	acecad->irq->transfer_dma = acecad->data_dma;
	acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

	input_register_device(acecad->input);

	usb_set_intfdata(intf, acecad);

	return 0;

 fail2:	usb_buffer_free(dev, 8, acecad->data, acecad->data_dma);
 fail1: input_free_device(input_dev);
	kfree(acecad);
	return -ENOMEM;
}

static void usb_acecad_disconnect(struct usb_interface *intf)
{
	struct usb_acecad *acecad = usb_get_intfdata(intf);

	usb_set_intfdata(intf, NULL);
	if (acecad) {
		usb_kill_urb(acecad->irq);
		input_unregister_device(acecad->input);
		usb_free_urb(acecad->irq);
		usb_buffer_free(interface_to_usbdev(intf), 10, acecad->data, acecad->data_dma);
		kfree(acecad);
	}
}

static struct usb_device_id usb_acecad_id_table [] = {
	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 },
	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302),	 .driver_info = 1 },
	{ }
};

MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);

static struct usb_driver usb_acecad_driver = {
	.name =		"usb_acecad",
	.probe =	usb_acecad_probe,
	.disconnect =	usb_acecad_disconnect,
	.id_table =	usb_acecad_id_table,
};

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

static void __exit usb_acecad_exit(void)
{
	usb_deregister(&usb_acecad_driver);
}

module_init(usb_acecad_init);
module_exit(usb_acecad_exit);
Commit	Line	Data
53880546 SV	1	/*
	2	* Copyright (c) 2001-2005 Edouard TISSERANT <edouard.tisserant@wanadoo.fr>
	3	* Copyright (c) 2004-2005 Stephane VOLTZ <svoltz@numericable.fr>
	4	*
	5	* USB Acecad "Acecad Flair" tablet support
	6	*
	7	* Changelog:
	8	* v3.2 - Added sysfs support
	9	*/
	10
	11	/*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	25	*
	26	*/
	27
	28	#include <linux/kernel.h>
	29	#include <linux/slab.h>
53880546 SV	30	#include <linux/module.h>
53880546 SV	31	#include <linux/init.h>
ae0dadcf	32	#include <linux/usb/input.h>
53880546 SV	33
	34	/*
	35	* Version Information
	36	*/
	37	#define DRIVER_VERSION "v3.2"
	38	#define DRIVER_DESC "USB Acecad Flair tablet driver"
	39	#define DRIVER_LICENSE "GPL"
	40	#define DRIVER_AUTHOR "Edouard TISSERANT <edouard.tisserant@wanadoo.fr>"
	41
	42	MODULE_AUTHOR(DRIVER_AUTHOR);
	43	MODULE_DESCRIPTION(DRIVER_DESC);
	44	MODULE_LICENSE(DRIVER_LICENSE);
	45
	46	#define USB_VENDOR_ID_ACECAD 0x0460
	47	#define USB_DEVICE_ID_FLAIR 0x0004
	48	#define USB_DEVICE_ID_302 0x0008
	49
	50	struct usb_acecad {
	51	char name[128];
	52	char phys[64];
	53	struct usb_device *usbdev;
c5b7c7c3	54	struct input_dev *input;
53880546 SV	55	struct urb *irq;
	56
	57	signed char *data;
	58	dma_addr_t data_dma;
	59	};
	60
	61	static void usb_acecad_irq(struct urb urb, struct pt_regs regs)
	62	{
	63	struct usb_acecad *acecad = urb->context;
	64	unsigned char *data = acecad->data;
c5b7c7c3	65	struct input_dev *dev = acecad->input;
53880546 SV	66	int prox, status;
	67
	68	switch (urb->status) {
	69	case 0:
	70	/* success */
	71	break;
	72	case -ECONNRESET:
	73	case -ENOENT:
	74	case -ESHUTDOWN:
	75	/* this urb is terminated, clean up */
	76	dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
	77	return;
	78	default:
	79	dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
	80	goto resubmit;
	81	}
	82
	83	prox = (data[0] & 0x04) >> 2;
	84	input_report_key(dev, BTN_TOOL_PEN, prox);
	85
	86	if (prox) {
	87	int x = data[1] \| (data[2] << 8);
	88	int y = data[3] \| (data[4] << 8);
c27a7482 DT	89	/* Pressure should compute the same way for flair and 302 */
c27a7482 DT	90	int pressure = data[5] \| (data[6] << 8);
53880546 SV	91	int touch = data[0] & 0x01;
	92	int stylus = (data[0] & 0x10) >> 4;
	93	int stylus2 = (data[0] & 0x20) >> 5;
	94	input_report_abs(dev, ABS_X, x);
	95	input_report_abs(dev, ABS_Y, y);
	96	input_report_abs(dev, ABS_PRESSURE, pressure);
	97	input_report_key(dev, BTN_TOUCH, touch);
	98	input_report_key(dev, BTN_STYLUS, stylus);
	99	input_report_key(dev, BTN_STYLUS2, stylus2);
	100	}
	101
	102	/* event termination */
	103	input_sync(dev);
	104
	105	resubmit:
c27a7482	106	status = usb_submit_urb(urb, GFP_ATOMIC);
53880546	107	if (status)
c27a7482	108	err("can't resubmit intr, %s-%s/input0, status %d",
53880546 SV	109	acecad->usbdev->bus->bus_name, acecad->usbdev->devpath, status);
	110	}
	111
	112	static int usb_acecad_open(struct input_dev *dev)
	113	{
	114	struct usb_acecad *acecad = dev->private;
	115
	116	acecad->irq->dev = acecad->usbdev;
	117	if (usb_submit_urb(acecad->irq, GFP_KERNEL))
	118	return -EIO;
	119
	120	return 0;
	121	}
	122
	123	static void usb_acecad_close(struct input_dev *dev)
	124	{
	125	struct usb_acecad *acecad = dev->private;
	126
	127	usb_kill_urb(acecad->irq);
	128	}
	129
	130	static int usb_acecad_probe(struct usb_interface intf, const struct usb_device_id id)
	131	{
	132	struct usb_device *dev = interface_to_usbdev(intf);
	133	struct usb_host_interface *interface = intf->cur_altsetting;
	134	struct usb_endpoint_descriptor *endpoint;
	135	struct usb_acecad *acecad;
c5b7c7c3	136	struct input_dev *input_dev;
53880546	137	int pipe, maxp;
53880546 SV	138
	139	if (interface->desc.bNumEndpoints != 1)
	140	return -ENODEV;
	141
	142	endpoint = &interface->endpoint[0].desc;
	143
ee709a3c	144	if (!usb_endpoint_is_int_in(endpoint))
53880546 SV	145	return -ENODEV;
	146
	147	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
	148	maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
	149
7b842b6e	150	acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
c5b7c7c3 DT	151	input_dev = input_allocate_device();
	152	if (!acecad \|\| !input_dev)
	153	goto fail1;
53880546 SV	154
	155	acecad->data = usb_buffer_alloc(dev, 8, SLAB_KERNEL, &acecad->data_dma);
	156	if (!acecad->data)
	157	goto fail1;
	158
	159	acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
	160	if (!acecad->irq)
	161	goto fail2;
	162
c5b7c7c3 DT	163	acecad->usbdev = dev;
	164	acecad->input = input_dev;
	165
53880546 SV	166	if (dev->manufacturer)
	167	strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name));
	168
	169	if (dev->product) {
	170	if (dev->manufacturer)
	171	strlcat(acecad->name, " ", sizeof(acecad->name));
	172	strlcat(acecad->name, dev->product, sizeof(acecad->name));
	173	}
	174
c5b7c7c3 DT	175	usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
c5b7c7c3 DT	176	strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
53880546	177
c5b7c7c3 DT	178	input_dev->name = acecad->name;
	179	input_dev->phys = acecad->phys;
	180	usb_to_input_id(dev, &input_dev->id);
	181	input_dev->cdev.dev = &intf->dev;
	182	input_dev->private = acecad;
53880546	183
c5b7c7c3 DT	184	input_dev->open = usb_acecad_open;
	185	input_dev->close = usb_acecad_close;
	186
	187	input_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_ABS);
	188	input_dev->absbit[0] = BIT(ABS_X) \| BIT(ABS_Y) \| BIT(ABS_PRESSURE);
	189	input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) \| BIT(BTN_RIGHT) \| BIT(BTN_MIDDLE);
	190	input_dev->keybit[LONG(BTN_DIGI)] = BIT(BTN_TOOL_PEN) \|BIT(BTN_TOUCH) \| BIT(BTN_STYLUS) \| BIT(BTN_STYLUS2);
53880546 SV	191
	192	switch (id->driver_info) {
	193	case 0:
c5b7c7c3 DT	194	input_dev->absmax[ABS_X] = 5000;
	195	input_dev->absmax[ABS_Y] = 3750;
	196	input_dev->absmax[ABS_PRESSURE] = 512;
53880546 SV	197	if (!strlen(acecad->name))
	198	snprintf(acecad->name, sizeof(acecad->name),
	199	"USB Acecad Flair Tablet %04x:%04x",
c5b7c7c3 DT	200	le16_to_cpu(dev->descriptor.idVendor),
c5b7c7c3 DT	201	le16_to_cpu(dev->descriptor.idProduct));
53880546 SV	202	break;
53880546 SV	203	case 1:
c5b7c7c3 DT	204	input_dev->absmax[ABS_X] = 3000;
	205	input_dev->absmax[ABS_Y] = 2250;
	206	input_dev->absmax[ABS_PRESSURE] = 1024;
53880546 SV	207	if (!strlen(acecad->name))
	208	snprintf(acecad->name, sizeof(acecad->name),
	209	"USB Acecad 302 Tablet %04x:%04x",
c5b7c7c3 DT	210	le16_to_cpu(dev->descriptor.idVendor),
c5b7c7c3 DT	211	le16_to_cpu(dev->descriptor.idProduct));
53880546 SV	212	break;
	213	}
	214
c5b7c7c3 DT	215	input_dev->absfuzz[ABS_X] = 4;
c5b7c7c3 DT	216	input_dev->absfuzz[ABS_Y] = 4;
53880546 SV	217
	218	usb_fill_int_urb(acecad->irq, dev, pipe,
	219	acecad->data, maxp > 8 ? 8 : maxp,
	220	usb_acecad_irq, acecad, endpoint->bInterval);
	221	acecad->irq->transfer_dma = acecad->data_dma;
	222	acecad->irq->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
	223
c5b7c7c3	224	input_register_device(acecad->input);
53880546 SV	225
	226	usb_set_intfdata(intf, acecad);
	227
	228	return 0;
	229
	230	fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma);
c5b7c7c3 DT	231	fail1: input_free_device(input_dev);
c5b7c7c3 DT	232	kfree(acecad);
53880546 SV	233	return -ENOMEM;
	234	}
	235
	236	static void usb_acecad_disconnect(struct usb_interface *intf)
	237	{
	238	struct usb_acecad *acecad = usb_get_intfdata(intf);
	239
	240	usb_set_intfdata(intf, NULL);
	241	if (acecad) {
	242	usb_kill_urb(acecad->irq);
c5b7c7c3	243	input_unregister_device(acecad->input);
53880546 SV	244	usb_free_urb(acecad->irq);
	245	usb_buffer_free(interface_to_usbdev(intf), 10, acecad->data, acecad->data_dma);
	246	kfree(acecad);
	247	}
	248	}
	249
	250	static struct usb_device_id usb_acecad_id_table [] = {
	251	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 },
	252	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302), .driver_info = 1 },
	253	{ }
	254	};
	255
	256	MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);
	257
	258	static struct usb_driver usb_acecad_driver = {
53880546 SV	259	.name = "usb_acecad",
	260	.probe = usb_acecad_probe,
	261	.disconnect = usb_acecad_disconnect,
	262	.id_table = usb_acecad_id_table,
	263	};
	264
	265	static int __init usb_acecad_init(void)
	266	{
	267	int result = usb_register(&usb_acecad_driver);
	268	if (result == 0)
	269	info(DRIVER_VERSION ":" DRIVER_DESC);
	270	return result;
	271	}
	272
	273	static void __exit usb_acecad_exit(void)
	274	{
	275	usb_deregister(&usb_acecad_driver);
	276	}
	277
	278	module_init(usb_acecad_init);
	279	module_exit(usb_acecad_exit);