[PATCH] USB: remove .owner field from struct usb_driver
[linux-2.6.git] / drivers / usb / input / acecad.c
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>
30 #include <linux/input.h>
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/usb.h>
34 #include <linux/usb_input.h>
35
36 /*
37  * Version Information
38  */
39 #define DRIVER_VERSION "v3.2"
40 #define DRIVER_DESC    "USB Acecad Flair tablet driver"
41 #define DRIVER_LICENSE "GPL"
42 #define DRIVER_AUTHOR  "Edouard TISSERANT <edouard.tisserant@wanadoo.fr>"
43
44 MODULE_AUTHOR(DRIVER_AUTHOR);
45 MODULE_DESCRIPTION(DRIVER_DESC);
46 MODULE_LICENSE(DRIVER_LICENSE);
47
48 #define USB_VENDOR_ID_ACECAD    0x0460
49 #define USB_DEVICE_ID_FLAIR     0x0004
50 #define USB_DEVICE_ID_302       0x0008
51
52 struct usb_acecad {
53         char name[128];
54         char phys[64];
55         struct usb_device *usbdev;
56         struct input_dev *input;
57         struct urb *irq;
58
59         signed char *data;
60         dma_addr_t data_dma;
61 };
62
63 static void usb_acecad_irq(struct urb *urb, struct pt_regs *regs)
64 {
65         struct usb_acecad *acecad = urb->context;
66         unsigned char *data = acecad->data;
67         struct input_dev *dev = acecad->input;
68         int prox, status;
69
70         switch (urb->status) {
71                 case 0:
72                         /* success */
73                         break;
74                 case -ECONNRESET:
75                 case -ENOENT:
76                 case -ESHUTDOWN:
77                         /* this urb is terminated, clean up */
78                         dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
79                         return;
80                 default:
81                         dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
82                         goto resubmit;
83         }
84
85         prox = (data[0] & 0x04) >> 2;
86         input_report_key(dev, BTN_TOOL_PEN, prox);
87
88         if (prox) {
89                 int x = data[1] | (data[2] << 8);
90                 int y = data[3] | (data[4] << 8);
91                 /* Pressure should compute the same way for flair and 302 */
92                 int pressure = data[5] | (data[6] << 8);
93                 int touch = data[0] & 0x01;
94                 int stylus = (data[0] & 0x10) >> 4;
95                 int stylus2 = (data[0] & 0x20) >> 5;
96                 input_report_abs(dev, ABS_X, x);
97                 input_report_abs(dev, ABS_Y, y);
98                 input_report_abs(dev, ABS_PRESSURE, pressure);
99                 input_report_key(dev, BTN_TOUCH, touch);
100                 input_report_key(dev, BTN_STYLUS, stylus);
101                 input_report_key(dev, BTN_STYLUS2, stylus2);
102         }
103
104         /* event termination */
105         input_sync(dev);
106
107 resubmit:
108         status = usb_submit_urb(urb, GFP_ATOMIC);
109         if (status)
110                 err("can't resubmit intr, %s-%s/input0, status %d",
111                         acecad->usbdev->bus->bus_name, acecad->usbdev->devpath, status);
112 }
113
114 static int usb_acecad_open(struct input_dev *dev)
115 {
116         struct usb_acecad *acecad = dev->private;
117
118         acecad->irq->dev = acecad->usbdev;
119         if (usb_submit_urb(acecad->irq, GFP_KERNEL))
120                 return -EIO;
121
122         return 0;
123 }
124
125 static void usb_acecad_close(struct input_dev *dev)
126 {
127         struct usb_acecad *acecad = dev->private;
128
129         usb_kill_urb(acecad->irq);
130 }
131
132 static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id)
133 {
134         struct usb_device *dev = interface_to_usbdev(intf);
135         struct usb_host_interface *interface = intf->cur_altsetting;
136         struct usb_endpoint_descriptor *endpoint;
137         struct usb_acecad *acecad;
138         struct input_dev *input_dev;
139         int pipe, maxp;
140
141         if (interface->desc.bNumEndpoints != 1)
142                 return -ENODEV;
143
144         endpoint = &interface->endpoint[0].desc;
145
146         if (!(endpoint->bEndpointAddress & 0x80))
147                 return -ENODEV;
148
149         if ((endpoint->bmAttributes & 3) != 3)
150                 return -ENODEV;
151
152         pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
153         maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
154
155         acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
156         input_dev = input_allocate_device();
157         if (!acecad || !input_dev)
158                 goto fail1;
159
160         acecad->data = usb_buffer_alloc(dev, 8, SLAB_KERNEL, &acecad->data_dma);
161         if (!acecad->data)
162                 goto fail1;
163
164         acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
165         if (!acecad->irq)
166                 goto fail2;
167
168         acecad->usbdev = dev;
169         acecad->input = input_dev;
170
171         if (dev->manufacturer)
172                 strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name));
173
174         if (dev->product) {
175                 if (dev->manufacturer)
176                         strlcat(acecad->name, " ", sizeof(acecad->name));
177                 strlcat(acecad->name, dev->product, sizeof(acecad->name));
178         }
179
180         usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
181         strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
182
183         input_dev->name = acecad->name;
184         input_dev->phys = acecad->phys;
185         usb_to_input_id(dev, &input_dev->id);
186         input_dev->cdev.dev = &intf->dev;
187         input_dev->private = acecad;
188
189         input_dev->open = usb_acecad_open;
190         input_dev->close = usb_acecad_close;
191
192         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
193         input_dev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
194         input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
195         input_dev->keybit[LONG(BTN_DIGI)] = BIT(BTN_TOOL_PEN) |BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2);
196
197         switch (id->driver_info) {
198                 case 0:
199                         input_dev->absmax[ABS_X] = 5000;
200                         input_dev->absmax[ABS_Y] = 3750;
201                         input_dev->absmax[ABS_PRESSURE] = 512;
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                 case 1:
209                         input_dev->absmax[ABS_X] = 3000;
210                         input_dev->absmax[ABS_Y] = 2250;
211                         input_dev->absmax[ABS_PRESSURE] = 1024;
212                         if (!strlen(acecad->name))
213                                 snprintf(acecad->name, sizeof(acecad->name),
214                                         "USB Acecad 302 Tablet %04x:%04x",
215                                         le16_to_cpu(dev->descriptor.idVendor),
216                                         le16_to_cpu(dev->descriptor.idProduct));
217                         break;
218         }
219
220         input_dev->absfuzz[ABS_X] = 4;
221         input_dev->absfuzz[ABS_Y] = 4;
222
223         usb_fill_int_urb(acecad->irq, dev, pipe,
224                         acecad->data, maxp > 8 ? 8 : maxp,
225                         usb_acecad_irq, acecad, endpoint->bInterval);
226         acecad->irq->transfer_dma = acecad->data_dma;
227         acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
228
229         input_register_device(acecad->input);
230
231         usb_set_intfdata(intf, acecad);
232
233         return 0;
234
235  fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma);
236  fail1: input_free_device(input_dev);
237         kfree(acecad);
238         return -ENOMEM;
239 }
240
241 static void usb_acecad_disconnect(struct usb_interface *intf)
242 {
243         struct usb_acecad *acecad = usb_get_intfdata(intf);
244
245         usb_set_intfdata(intf, NULL);
246         if (acecad) {
247                 usb_kill_urb(acecad->irq);
248                 input_unregister_device(acecad->input);
249                 usb_free_urb(acecad->irq);
250                 usb_buffer_free(interface_to_usbdev(intf), 10, acecad->data, acecad->data_dma);
251                 kfree(acecad);
252         }
253 }
254
255 static struct usb_device_id usb_acecad_id_table [] = {
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 = {
264         .name =         "usb_acecad",
265         .probe =        usb_acecad_probe,
266         .disconnect =   usb_acecad_disconnect,
267         .id_table =     usb_acecad_id_table,
268 };
269
270 static int __init usb_acecad_init(void)
271 {
272         int result = usb_register(&usb_acecad_driver);
273         if (result == 0)
274                 info(DRIVER_VERSION ":" DRIVER_DESC);
275         return result;
276 }
277
278 static void __exit usb_acecad_exit(void)
279 {
280         usb_deregister(&usb_acecad_driver);
281 }
282
283 module_init(usb_acecad_init);
284 module_exit(usb_acecad_exit);