[GitHub/mt8127/android_kernel_alcatel_ttab.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/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 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;
	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",
			acecad->usbdev->bus->bus_name,
			acecad->usbdev->devpath, status);
}

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

	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 = 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->usbdev = dev;
	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);

	usb_set_intfdata(intf, NULL);

	input_unregister_device(acecad->input);
	usb_free_urb(acecad->irq);
	usb_free_coherent(acecad->usbdev, 8, 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,
};

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 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;
334698d4	54	struct usb_interface *intf;
c5b7c7c3	55	struct input_dev *input;
53880546 SV	56	struct urb *irq;
53880546 SV	57
4ee1fc8e	58	unsigned char *data;
53880546 SV	59	dma_addr_t data_dma;
	60	};
	61
7d12e780	62	static void usb_acecad_irq(struct urb *urb)
53880546 SV	63	{
	64	struct usb_acecad *acecad = urb->context;
	65	unsigned char *data = acecad->data;
c5b7c7c3	66	struct input_dev *dev = acecad->input;
334698d4	67	struct usb_interface *intf = acecad->intf;
53880546 SV	68	int prox, status;
	69
	70	switch (urb->status) {
b426571c DT	71	case 0:
	72	/* success */
	73	break;
	74	case -ECONNRESET:
	75	case -ENOENT:
	76	case -ESHUTDOWN:
	77	/* this urb is terminated, clean up */
334698d4	78	dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
eeba1ae1	79	__func__, urb->status);
b426571c DT	80	return;
b426571c DT	81	default:
334698d4	82	dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
eeba1ae1	83	__func__, urb->status);
b426571c	84	goto resubmit;
53880546 SV	85	}
	86
	87	prox = (data[0] & 0x04) >> 2;
	88	input_report_key(dev, BTN_TOOL_PEN, prox);
	89
	90	if (prox) {
	91	int x = data[1] \| (data[2] << 8);
	92	int y = data[3] \| (data[4] << 8);
c27a7482 DT	93	/* Pressure should compute the same way for flair and 302 */
c27a7482 DT	94	int pressure = data[5] \| (data[6] << 8);
53880546 SV	95	int touch = data[0] & 0x01;
	96	int stylus = (data[0] & 0x10) >> 4;
	97	int stylus2 = (data[0] & 0x20) >> 5;
	98	input_report_abs(dev, ABS_X, x);
	99	input_report_abs(dev, ABS_Y, y);
	100	input_report_abs(dev, ABS_PRESSURE, pressure);
	101	input_report_key(dev, BTN_TOUCH, touch);
	102	input_report_key(dev, BTN_STYLUS, stylus);
	103	input_report_key(dev, BTN_STYLUS2, stylus2);
	104	}
	105
	106	/* event termination */
	107	input_sync(dev);
	108
	109	resubmit:
c27a7482	110	status = usb_submit_urb(urb, GFP_ATOMIC);
53880546	111	if (status)
334698d4	112	dev_err(&intf->dev,
b59c82bd GKH	113	"can't resubmit intr, %s-%s/input0, status %d\n",
	114	acecad->usbdev->bus->bus_name,
	115	acecad->usbdev->devpath, status);
53880546 SV	116	}
	117
	118	static int usb_acecad_open(struct input_dev *dev)
	119	{
7791bdae	120	struct usb_acecad *acecad = input_get_drvdata(dev);
53880546 SV	121
	122	acecad->irq->dev = acecad->usbdev;
	123	if (usb_submit_urb(acecad->irq, GFP_KERNEL))
	124	return -EIO;
	125
	126	return 0;
	127	}
	128
	129	static void usb_acecad_close(struct input_dev *dev)
	130	{
7791bdae	131	struct usb_acecad *acecad = input_get_drvdata(dev);
53880546 SV	132
	133	usb_kill_urb(acecad->irq);
	134	}
	135
	136	static int usb_acecad_probe(struct usb_interface intf, const struct usb_device_id id)
	137	{
	138	struct usb_device *dev = interface_to_usbdev(intf);
	139	struct usb_host_interface *interface = intf->cur_altsetting;
	140	struct usb_endpoint_descriptor *endpoint;
	141	struct usb_acecad *acecad;
c5b7c7c3	142	struct input_dev *input_dev;
53880546	143	int pipe, maxp;
b426571c	144	int err;
53880546 SV	145
	146	if (interface->desc.bNumEndpoints != 1)
	147	return -ENODEV;
	148
	149	endpoint = &interface->endpoint[0].desc;
	150
ee709a3c	151	if (!usb_endpoint_is_int_in(endpoint))
53880546 SV	152	return -ENODEV;
	153
	154	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
	155	maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
	156
7b842b6e	157	acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
c5b7c7c3	158	input_dev = input_allocate_device();
5014186d DT	159	if (!acecad \|\| !input_dev) {
5014186d DT	160	err = -ENOMEM;
c5b7c7c3	161	goto fail1;
5014186d	162	}
53880546	163
997ea58e	164	acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
5014186d DT	165	if (!acecad->data) {
5014186d DT	166	err= -ENOMEM;
53880546	167	goto fail1;
5014186d	168	}
53880546 SV	169
53880546 SV	170	acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
5014186d DT	171	if (!acecad->irq) {
5014186d DT	172	err = -ENOMEM;
53880546	173	goto fail2;
5014186d	174	}
53880546	175
c5b7c7c3	176	acecad->usbdev = dev;
334698d4	177	acecad->intf = intf;
c5b7c7c3 DT	178	acecad->input = input_dev;
c5b7c7c3 DT	179
53880546 SV	180	if (dev->manufacturer)
	181	strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name));
	182
	183	if (dev->product) {
	184	if (dev->manufacturer)
	185	strlcat(acecad->name, " ", sizeof(acecad->name));
	186	strlcat(acecad->name, dev->product, sizeof(acecad->name));
	187	}
	188
c5b7c7c3 DT	189	usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
c5b7c7c3 DT	190	strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
53880546	191
c5b7c7c3 DT	192	input_dev->name = acecad->name;
	193	input_dev->phys = acecad->phys;
	194	usb_to_input_id(dev, &input_dev->id);
c0f82d57	195	input_dev->dev.parent = &intf->dev;
7791bdae DT	196
7791bdae DT	197	input_set_drvdata(input_dev, acecad);
53880546	198
c5b7c7c3 DT	199	input_dev->open = usb_acecad_open;
	200	input_dev->close = usb_acecad_close;
	201
7b19ada2	202	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_ABS);
7b19ada2 JS	203	input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) \|
	204	BIT_MASK(BTN_TOUCH) \| BIT_MASK(BTN_STYLUS) \|
	205	BIT_MASK(BTN_STYLUS2);
53880546 SV	206
53880546 SV	207	switch (id->driver_info) {
b426571c DT	208	case 0:
	209	input_set_abs_params(input_dev, ABS_X, 0, 5000, 4, 0);
	210	input_set_abs_params(input_dev, ABS_Y, 0, 3750, 4, 0);
	211	input_set_abs_params(input_dev, ABS_PRESSURE, 0, 512, 0, 0);
	212	if (!strlen(acecad->name))
	213	snprintf(acecad->name, sizeof(acecad->name),
	214	"USB Acecad Flair Tablet %04x:%04x",
	215	le16_to_cpu(dev->descriptor.idVendor),
	216	le16_to_cpu(dev->descriptor.idProduct));
	217	break;
	218
	219	case 1:
	220	input_set_abs_params(input_dev, ABS_X, 0, 53000, 4, 0);
	221	input_set_abs_params(input_dev, ABS_Y, 0, 2250, 4, 0);
	222	input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1024, 0, 0);
	223	if (!strlen(acecad->name))
	224	snprintf(acecad->name, sizeof(acecad->name),
	225	"USB Acecad 302 Tablet %04x:%04x",
	226	le16_to_cpu(dev->descriptor.idVendor),
	227	le16_to_cpu(dev->descriptor.idProduct));
	228	break;
53880546 SV	229	}
53880546 SV	230
53880546 SV	231	usb_fill_int_urb(acecad->irq, dev, pipe,
	232	acecad->data, maxp > 8 ? 8 : maxp,
	233	usb_acecad_irq, acecad, endpoint->bInterval);
	234	acecad->irq->transfer_dma = acecad->data_dma;
	235	acecad->irq->transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;
	236
5014186d DT	237	err = input_register_device(acecad->input);
5014186d DT	238	if (err)
a4503199	239	goto fail3;
53880546 SV	240
	241	usb_set_intfdata(intf, acecad);
	242
	243	return 0;
	244
a4503199	245	fail3: usb_free_urb(acecad->irq);
997ea58e	246	fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
c5b7c7c3 DT	247	fail1: input_free_device(input_dev);
c5b7c7c3 DT	248	kfree(acecad);
5014186d	249	return err;
53880546 SV	250	}
	251
	252	static void usb_acecad_disconnect(struct usb_interface *intf)
	253	{
	254	struct usb_acecad *acecad = usb_get_intfdata(intf);
	255
	256	usb_set_intfdata(intf, NULL);
5492f6f8 DT	257
	258	input_unregister_device(acecad->input);
	259	usb_free_urb(acecad->irq);
7a9b1492	260	usb_free_coherent(acecad->usbdev, 8, acecad->data, acecad->data_dma);
5492f6f8	261	kfree(acecad);
53880546 SV	262	}
	263
	264	static struct usb_device_id usb_acecad_id_table [] = {
	265	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 },
	266	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302), .driver_info = 1 },
	267	{ }
	268	};
	269
	270	MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);
	271
	272	static struct usb_driver usb_acecad_driver = {
53880546 SV	273	.name = "usb_acecad",
	274	.probe = usb_acecad_probe,
	275	.disconnect = usb_acecad_disconnect,
	276	.id_table = usb_acecad_id_table,
	277	};
	278
08642e7c	279	module_usb_driver(usb_acecad_driver);