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Stephane VOLTZ53880542005-06-06 02:22:37 -05001/*
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>
Stephane VOLTZ53880542005-06-06 02:22:37 -050030#include <linux/module.h>
31#include <linux/init.h>
David Brownellae0dadc2006-06-13 10:04:34 -070032#include <linux/usb/input.h>
Stephane VOLTZ53880542005-06-06 02:22:37 -050033
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
42MODULE_AUTHOR(DRIVER_AUTHOR);
43MODULE_DESCRIPTION(DRIVER_DESC);
44MODULE_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
50struct usb_acecad {
51 char name[128];
52 char phys[64];
53 struct usb_device *usbdev;
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -050054 struct input_dev *input;
Stephane VOLTZ53880542005-06-06 02:22:37 -050055 struct urb *irq;
56
57 signed char *data;
58 dma_addr_t data_dma;
59};
60
David Howells7d12e782006-10-05 14:55:46 +010061static void usb_acecad_irq(struct urb *urb)
Stephane VOLTZ53880542005-06-06 02:22:37 -050062{
63 struct usb_acecad *acecad = urb->context;
64 unsigned char *data = acecad->data;
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -050065 struct input_dev *dev = acecad->input;
Stephane VOLTZ53880542005-06-06 02:22:37 -050066 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);
Dmitry Torokhovc27a7482005-06-30 00:48:51 -050089 /* Pressure should compute the same way for flair and 302 */
90 int pressure = data[5] | (data[6] << 8);
Stephane VOLTZ53880542005-06-06 02:22:37 -050091 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
105resubmit:
Dmitry Torokhovc27a7482005-06-30 00:48:51 -0500106 status = usb_submit_urb(urb, GFP_ATOMIC);
Stephane VOLTZ53880542005-06-06 02:22:37 -0500107 if (status)
Dmitry Torokhovc27a7482005-06-30 00:48:51 -0500108 err("can't resubmit intr, %s-%s/input0, status %d",
Stephane VOLTZ53880542005-06-06 02:22:37 -0500109 acecad->usbdev->bus->bus_name, acecad->usbdev->devpath, status);
110}
111
112static 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
123static 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
130static 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;
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500136 struct input_dev *input_dev;
Stephane VOLTZ53880542005-06-06 02:22:37 -0500137 int pipe, maxp;
Stephane VOLTZ53880542005-06-06 02:22:37 -0500138
139 if (interface->desc.bNumEndpoints != 1)
140 return -ENODEV;
141
142 endpoint = &interface->endpoint[0].desc;
143
Luiz Fernando N. Capitulinoee709a32006-09-27 11:58:53 -0700144 if (!usb_endpoint_is_int_in(endpoint))
Stephane VOLTZ53880542005-06-06 02:22:37 -0500145 return -ENODEV;
146
147 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
148 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
149
Pekka Enberg7b842b62005-09-06 15:18:34 -0700150 acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500151 input_dev = input_allocate_device();
152 if (!acecad || !input_dev)
153 goto fail1;
Stephane VOLTZ53880542005-06-06 02:22:37 -0500154
Christoph Lametere94b1762006-12-06 20:33:17 -0800155 acecad->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &acecad->data_dma);
Stephane VOLTZ53880542005-06-06 02:22:37 -0500156 if (!acecad->data)
157 goto fail1;
158
159 acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
160 if (!acecad->irq)
161 goto fail2;
162
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500163 acecad->usbdev = dev;
164 acecad->input = input_dev;
165
Stephane VOLTZ53880542005-06-06 02:22:37 -0500166 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
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500175 usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
176 strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
Stephane VOLTZ53880542005-06-06 02:22:37 -0500177
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500178 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;
Stephane VOLTZ53880542005-06-06 02:22:37 -0500183
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500184 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);
Stephane VOLTZ53880542005-06-06 02:22:37 -0500191
192 switch (id->driver_info) {
193 case 0:
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500194 input_dev->absmax[ABS_X] = 5000;
195 input_dev->absmax[ABS_Y] = 3750;
196 input_dev->absmax[ABS_PRESSURE] = 512;
Stephane VOLTZ53880542005-06-06 02:22:37 -0500197 if (!strlen(acecad->name))
198 snprintf(acecad->name, sizeof(acecad->name),
199 "USB Acecad Flair Tablet %04x:%04x",
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500200 le16_to_cpu(dev->descriptor.idVendor),
201 le16_to_cpu(dev->descriptor.idProduct));
Stephane VOLTZ53880542005-06-06 02:22:37 -0500202 break;
203 case 1:
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500204 input_dev->absmax[ABS_X] = 3000;
205 input_dev->absmax[ABS_Y] = 2250;
206 input_dev->absmax[ABS_PRESSURE] = 1024;
Stephane VOLTZ53880542005-06-06 02:22:37 -0500207 if (!strlen(acecad->name))
208 snprintf(acecad->name, sizeof(acecad->name),
209 "USB Acecad 302 Tablet %04x:%04x",
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500210 le16_to_cpu(dev->descriptor.idVendor),
211 le16_to_cpu(dev->descriptor.idProduct));
Stephane VOLTZ53880542005-06-06 02:22:37 -0500212 break;
213 }
214
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500215 input_dev->absfuzz[ABS_X] = 4;
216 input_dev->absfuzz[ABS_Y] = 4;
Stephane VOLTZ53880542005-06-06 02:22:37 -0500217
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
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500224 input_register_device(acecad->input);
Stephane VOLTZ53880542005-06-06 02:22:37 -0500225
226 usb_set_intfdata(intf, acecad);
227
228 return 0;
229
230 fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma);
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500231 fail1: input_free_device(input_dev);
232 kfree(acecad);
Stephane VOLTZ53880542005-06-06 02:22:37 -0500233 return -ENOMEM;
234}
235
236static 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);
Dmitry Torokhovc5b7c7c2005-09-15 02:01:47 -0500243 input_unregister_device(acecad->input);
Stephane VOLTZ53880542005-06-06 02:22:37 -0500244 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
250static 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
256MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);
257
258static struct usb_driver usb_acecad_driver = {
Stephane VOLTZ53880542005-06-06 02:22:37 -0500259 .name = "usb_acecad",
260 .probe = usb_acecad_probe,
261 .disconnect = usb_acecad_disconnect,
262 .id_table = usb_acecad_id_table,
263};
264
265static 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
273static void __exit usb_acecad_exit(void)
274{
275 usb_deregister(&usb_acecad_driver);
276}
277
278module_init(usb_acecad_init);
279module_exit(usb_acecad_exit);