[linux-2.6-block.git] / drivers / input / tablet / 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/usb/input.h>

MODULE_AUTHOR("Edouard TISSERANT <edouard.tisserant@wanadoo.fr>");
MODULE_DESCRIPTION("USB Acecad Flair tablet driver");
MODULE_LICENSE("GPL");

#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_interface *intf;
	struct input_dev *input;
	struct urb *irq;

	unsigned char *data;
	dma_addr_t data_dma;
};

static void usb_acecad_irq(struct urb *urb)
{
	struct usb_acecad *acecad = urb->context;
	unsigned char *data = acecad->data;
	struct input_dev *dev = acecad->input;
	struct usb_interface *intf = acecad->intf;
	struct usb_device *udev = interface_to_usbdev(intf);
	int prox, status;

	switch (urb->status) {
	case 0:
		/* success */
		break;
	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
			__func__, urb->status);
		return;
	default:
		dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
			__func__, 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)
		dev_err(&intf->dev,
			"can't resubmit intr, %s-%s/input0, status %d\n",
			udev->bus->bus_name,
			udev->devpath, status);
}

static int usb_acecad_open(struct input_dev *dev)
{
	struct usb_acecad *acecad = input_get_drvdata(dev);

	acecad->irq->dev = interface_to_usbdev(acecad->intf);
	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 = input_get_drvdata(dev);

	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;
	int err;

	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) {
		err = -ENOMEM;
		goto fail1;
	}

	acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
	if (!acecad->data) {
		err= -ENOMEM;
		goto fail1;
	}

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

	acecad->intf = intf;
	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->dev.parent = &intf->dev;

	input_set_drvdata(input_dev, acecad);

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

	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
	input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) |
		BIT_MASK(BTN_TOUCH) | BIT_MASK(BTN_STYLUS) |
		BIT_MASK(BTN_STYLUS2);

	switch (id->driver_info) {
	case 0:
		input_set_abs_params(input_dev, ABS_X, 0, 5000, 4, 0);
		input_set_abs_params(input_dev, ABS_Y, 0, 3750, 4, 0);
		input_set_abs_params(input_dev, ABS_PRESSURE, 0, 512, 0, 0);
		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_set_abs_params(input_dev, ABS_X, 0, 53000, 4, 0);
		input_set_abs_params(input_dev, ABS_Y, 0, 2250, 4, 0);
		input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1024, 0, 0);
		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;
	}

	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;

	err = input_register_device(acecad->input);
	if (err)
		goto fail3;

	usb_set_intfdata(intf, acecad);

	return 0;

 fail3:	usb_free_urb(acecad->irq);
 fail2:	usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
 fail1: input_free_device(input_dev);
	kfree(acecad);
	return err;
}

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

	usb_set_intfdata(intf, NULL);

	input_unregister_device(acecad->input);
	usb_free_urb(acecad->irq);
	usb_free_coherent(udev, 8, acecad->data, acecad->data_dma);
	kfree(acecad);
}

static const 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,
};

module_usb_driver(usb_acecad_driver);
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	30	#include <linux/module.h>
ae0dadcf	31	#include <linux/usb/input.h>
53880546	32
698c03b4 JL	33	MODULE_AUTHOR("Edouard TISSERANT <edouard.tisserant@wanadoo.fr>");
698c03b4 JL	34	MODULE_DESCRIPTION("USB Acecad Flair tablet driver");
9f1d1ea3	35	MODULE_LICENSE("GPL");
53880546 SV	36
	37	#define USB_VENDOR_ID_ACECAD 0x0460
	38	#define USB_DEVICE_ID_FLAIR 0x0004
	39	#define USB_DEVICE_ID_302 0x0008
	40
	41	struct usb_acecad {
	42	char name[128];
	43	char phys[64];
334698d4	44	struct usb_interface *intf;
c5b7c7c3	45	struct input_dev *input;
53880546 SV	46	struct urb *irq;
53880546 SV	47
4ee1fc8e	48	unsigned char *data;
53880546 SV	49	dma_addr_t data_dma;
	50	};
	51
7d12e780	52	static void usb_acecad_irq(struct urb *urb)
53880546 SV	53	{
	54	struct usb_acecad *acecad = urb->context;
	55	unsigned char *data = acecad->data;
c5b7c7c3	56	struct input_dev *dev = acecad->input;
334698d4	57	struct usb_interface *intf = acecad->intf;
7edf2c9c	58	struct usb_device *udev = interface_to_usbdev(intf);
53880546 SV	59	int prox, status;
	60
	61	switch (urb->status) {
b426571c DT	62	case 0:
	63	/* success */
	64	break;
	65	case -ECONNRESET:
	66	case -ENOENT:
	67	case -ESHUTDOWN:
	68	/* this urb is terminated, clean up */
334698d4	69	dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
eeba1ae1	70	__func__, urb->status);
b426571c DT	71	return;
b426571c DT	72	default:
334698d4	73	dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
eeba1ae1	74	__func__, urb->status);
b426571c	75	goto resubmit;
53880546 SV	76	}
	77
	78	prox = (data[0] & 0x04) >> 2;
	79	input_report_key(dev, BTN_TOOL_PEN, prox);
	80
	81	if (prox) {
	82	int x = data[1] \| (data[2] << 8);
	83	int y = data[3] \| (data[4] << 8);
c27a7482 DT	84	/* Pressure should compute the same way for flair and 302 */
c27a7482 DT	85	int pressure = data[5] \| (data[6] << 8);
53880546 SV	86	int touch = data[0] & 0x01;
	87	int stylus = (data[0] & 0x10) >> 4;
	88	int stylus2 = (data[0] & 0x20) >> 5;
	89	input_report_abs(dev, ABS_X, x);
	90	input_report_abs(dev, ABS_Y, y);
	91	input_report_abs(dev, ABS_PRESSURE, pressure);
	92	input_report_key(dev, BTN_TOUCH, touch);
	93	input_report_key(dev, BTN_STYLUS, stylus);
	94	input_report_key(dev, BTN_STYLUS2, stylus2);
	95	}
	96
	97	/* event termination */
	98	input_sync(dev);
	99
	100	resubmit:
c27a7482	101	status = usb_submit_urb(urb, GFP_ATOMIC);
53880546	102	if (status)
334698d4	103	dev_err(&intf->dev,
b59c82bd	104	"can't resubmit intr, %s-%s/input0, status %d\n",
7edf2c9c ON	105	udev->bus->bus_name,
7edf2c9c ON	106	udev->devpath, status);
53880546 SV	107	}
	108
	109	static int usb_acecad_open(struct input_dev *dev)
	110	{
7791bdae	111	struct usb_acecad *acecad = input_get_drvdata(dev);
53880546	112
7edf2c9c	113	acecad->irq->dev = interface_to_usbdev(acecad->intf);
53880546 SV	114	if (usb_submit_urb(acecad->irq, GFP_KERNEL))
	115	return -EIO;
	116
	117	return 0;
	118	}
	119
	120	static void usb_acecad_close(struct input_dev *dev)
	121	{
7791bdae	122	struct usb_acecad *acecad = input_get_drvdata(dev);
53880546 SV	123
	124	usb_kill_urb(acecad->irq);
	125	}
	126
	127	static int usb_acecad_probe(struct usb_interface intf, const struct usb_device_id id)
	128	{
	129	struct usb_device *dev = interface_to_usbdev(intf);
	130	struct usb_host_interface *interface = intf->cur_altsetting;
	131	struct usb_endpoint_descriptor *endpoint;
	132	struct usb_acecad *acecad;
c5b7c7c3	133	struct input_dev *input_dev;
53880546	134	int pipe, maxp;
b426571c	135	int err;
53880546 SV	136
	137	if (interface->desc.bNumEndpoints != 1)
	138	return -ENODEV;
	139
	140	endpoint = &interface->endpoint[0].desc;
	141
ee709a3c	142	if (!usb_endpoint_is_int_in(endpoint))
53880546 SV	143	return -ENODEV;
	144
	145	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
	146	maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
	147
7b842b6e	148	acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
c5b7c7c3	149	input_dev = input_allocate_device();
5014186d DT	150	if (!acecad \|\| !input_dev) {
5014186d DT	151	err = -ENOMEM;
c5b7c7c3	152	goto fail1;
5014186d	153	}
53880546	154
997ea58e	155	acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
5014186d DT	156	if (!acecad->data) {
5014186d DT	157	err= -ENOMEM;
53880546	158	goto fail1;
5014186d	159	}
53880546 SV	160
53880546 SV	161	acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
5014186d DT	162	if (!acecad->irq) {
5014186d DT	163	err = -ENOMEM;
53880546	164	goto fail2;
5014186d	165	}
53880546	166
334698d4	167	acecad->intf = intf;
c5b7c7c3 DT	168	acecad->input = input_dev;
c5b7c7c3 DT	169
53880546 SV	170	if (dev->manufacturer)
	171	strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name));
	172
	173	if (dev->product) {
	174	if (dev->manufacturer)
	175	strlcat(acecad->name, " ", sizeof(acecad->name));
	176	strlcat(acecad->name, dev->product, sizeof(acecad->name));
	177	}
	178
c5b7c7c3 DT	179	usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
c5b7c7c3 DT	180	strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
53880546	181
c5b7c7c3 DT	182	input_dev->name = acecad->name;
	183	input_dev->phys = acecad->phys;
	184	usb_to_input_id(dev, &input_dev->id);
c0f82d57	185	input_dev->dev.parent = &intf->dev;
7791bdae DT	186
7791bdae DT	187	input_set_drvdata(input_dev, acecad);
53880546	188
c5b7c7c3 DT	189	input_dev->open = usb_acecad_open;
	190	input_dev->close = usb_acecad_close;
	191
7b19ada2	192	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_ABS);
7b19ada2 JS	193	input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) \|
	194	BIT_MASK(BTN_TOUCH) \| BIT_MASK(BTN_STYLUS) \|
	195	BIT_MASK(BTN_STYLUS2);
53880546 SV	196
53880546 SV	197	switch (id->driver_info) {
b426571c DT	198	case 0:
	199	input_set_abs_params(input_dev, ABS_X, 0, 5000, 4, 0);
	200	input_set_abs_params(input_dev, ABS_Y, 0, 3750, 4, 0);
	201	input_set_abs_params(input_dev, ABS_PRESSURE, 0, 512, 0, 0);
	202	if (!strlen(acecad->name))
	203	snprintf(acecad->name, sizeof(acecad->name),
	204	"USB Acecad Flair Tablet %04x:%04x",
	205	le16_to_cpu(dev->descriptor.idVendor),
	206	le16_to_cpu(dev->descriptor.idProduct));
	207	break;
	208
	209	case 1:
	210	input_set_abs_params(input_dev, ABS_X, 0, 53000, 4, 0);
	211	input_set_abs_params(input_dev, ABS_Y, 0, 2250, 4, 0);
	212	input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1024, 0, 0);
	213	if (!strlen(acecad->name))
	214	snprintf(acecad->name, sizeof(acecad->name),
	215	"USB Acecad 302 Tablet %04x:%04x",
	216	le16_to_cpu(dev->descriptor.idVendor),
	217	le16_to_cpu(dev->descriptor.idProduct));
	218	break;
53880546 SV	219	}
53880546 SV	220
53880546 SV	221	usb_fill_int_urb(acecad->irq, dev, pipe,
	222	acecad->data, maxp > 8 ? 8 : maxp,
	223	usb_acecad_irq, acecad, endpoint->bInterval);
	224	acecad->irq->transfer_dma = acecad->data_dma;
	225	acecad->irq->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
	226
5014186d DT	227	err = input_register_device(acecad->input);
5014186d DT	228	if (err)
a4503199	229	goto fail3;
53880546 SV	230
	231	usb_set_intfdata(intf, acecad);
	232
	233	return 0;
	234
a4503199	235	fail3: usb_free_urb(acecad->irq);
997ea58e	236	fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
c5b7c7c3 DT	237	fail1: input_free_device(input_dev);
c5b7c7c3 DT	238	kfree(acecad);
5014186d	239	return err;
53880546 SV	240	}
	241
	242	static void usb_acecad_disconnect(struct usb_interface *intf)
	243	{
	244	struct usb_acecad *acecad = usb_get_intfdata(intf);
7edf2c9c	245	struct usb_device *udev = interface_to_usbdev(intf);
53880546 SV	246
53880546 SV	247	usb_set_intfdata(intf, NULL);
5492f6f8 DT	248
	249	input_unregister_device(acecad->input);
	250	usb_free_urb(acecad->irq);
7edf2c9c	251	usb_free_coherent(udev, 8, acecad->data, acecad->data_dma);
5492f6f8	252	kfree(acecad);
53880546 SV	253	}
53880546 SV	254
803088fa	255	static const struct usb_device_id usb_acecad_id_table[] = {
53880546 SV	256	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 },
	257	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302), .driver_info = 1 },
	258	{ }
	259	};
	260
	261	MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);
	262
	263	static struct usb_driver usb_acecad_driver = {
53880546 SV	264	.name = "usb_acecad",
	265	.probe = usb_acecad_probe,
	266	.disconnect = usb_acecad_disconnect,
	267	.id_table = usb_acecad_id_table,
	268	};
	269
08642e7c	270	module_usb_driver(usb_acecad_driver);