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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> | |
30 | #include <linux/input.h> | |
31 | #include <linux/module.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/usb.h> | |
34 | ||
35 | /* | |
36 | * Version Information | |
37 | */ | |
38 | #define DRIVER_VERSION "v3.2" | |
39 | #define DRIVER_DESC "USB Acecad Flair tablet driver" | |
40 | #define DRIVER_LICENSE "GPL" | |
41 | #define DRIVER_AUTHOR "Edouard TISSERANT <edouard.tisserant@wanadoo.fr>" | |
42 | ||
43 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
44 | MODULE_DESCRIPTION(DRIVER_DESC); | |
45 | MODULE_LICENSE(DRIVER_LICENSE); | |
46 | ||
47 | #define USB_VENDOR_ID_ACECAD 0x0460 | |
48 | #define USB_DEVICE_ID_FLAIR 0x0004 | |
49 | #define USB_DEVICE_ID_302 0x0008 | |
50 | ||
51 | struct usb_acecad { | |
52 | char name[128]; | |
53 | char phys[64]; | |
54 | struct usb_device *usbdev; | |
55 | struct input_dev dev; | |
56 | struct urb *irq; | |
57 | ||
58 | signed char *data; | |
59 | dma_addr_t data_dma; | |
60 | }; | |
61 | ||
62 | static void usb_acecad_irq(struct urb *urb, struct pt_regs *regs) | |
63 | { | |
64 | struct usb_acecad *acecad = urb->context; | |
65 | unsigned char *data = acecad->data; | |
66 | struct input_dev *dev = &acecad->dev; | |
67 | int prox, status; | |
68 | ||
69 | switch (urb->status) { | |
70 | case 0: | |
71 | /* success */ | |
72 | break; | |
73 | case -ECONNRESET: | |
74 | case -ENOENT: | |
75 | case -ESHUTDOWN: | |
76 | /* this urb is terminated, clean up */ | |
77 | dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); | |
78 | return; | |
79 | default: | |
80 | dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); | |
81 | goto resubmit; | |
82 | } | |
83 | ||
84 | prox = (data[0] & 0x04) >> 2; | |
85 | input_report_key(dev, BTN_TOOL_PEN, prox); | |
86 | ||
87 | if (prox) { | |
88 | int x = data[1] | (data[2] << 8); | |
89 | int y = data[3] | (data[4] << 8); | |
90 | /*Pressure should compute the same way for flair and 302*/ | |
91 | int pressure = data[5] | ((int)data[6] << 8); | |
92 | int touch = data[0] & 0x01; | |
93 | int stylus = (data[0] & 0x10) >> 4; | |
94 | int stylus2 = (data[0] & 0x20) >> 5; | |
95 | input_report_abs(dev, ABS_X, x); | |
96 | input_report_abs(dev, ABS_Y, y); | |
97 | input_report_abs(dev, ABS_PRESSURE, pressure); | |
98 | input_report_key(dev, BTN_TOUCH, touch); | |
99 | input_report_key(dev, BTN_STYLUS, stylus); | |
100 | input_report_key(dev, BTN_STYLUS2, stylus2); | |
101 | } | |
102 | ||
103 | /* event termination */ | |
104 | input_sync(dev); | |
105 | ||
106 | resubmit: | |
107 | status = usb_submit_urb (urb, GFP_ATOMIC); | |
108 | if (status) | |
109 | err ("can't resubmit intr, %s-%s/input0, status %d", | |
110 | acecad->usbdev->bus->bus_name, acecad->usbdev->devpath, status); | |
111 | } | |
112 | ||
113 | static int usb_acecad_open(struct input_dev *dev) | |
114 | { | |
115 | struct usb_acecad *acecad = dev->private; | |
116 | ||
117 | acecad->irq->dev = acecad->usbdev; | |
118 | if (usb_submit_urb(acecad->irq, GFP_KERNEL)) | |
119 | return -EIO; | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
124 | static void usb_acecad_close(struct input_dev *dev) | |
125 | { | |
126 | struct usb_acecad *acecad = dev->private; | |
127 | ||
128 | usb_kill_urb(acecad->irq); | |
129 | } | |
130 | ||
131 | static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
132 | { | |
133 | struct usb_device *dev = interface_to_usbdev(intf); | |
134 | struct usb_host_interface *interface = intf->cur_altsetting; | |
135 | struct usb_endpoint_descriptor *endpoint; | |
136 | struct usb_acecad *acecad; | |
137 | int pipe, maxp; | |
138 | char path[64]; | |
139 | ||
140 | if (interface->desc.bNumEndpoints != 1) | |
141 | return -ENODEV; | |
142 | ||
143 | endpoint = &interface->endpoint[0].desc; | |
144 | ||
145 | if (!(endpoint->bEndpointAddress & 0x80)) | |
146 | return -ENODEV; | |
147 | ||
148 | if ((endpoint->bmAttributes & 3) != 3) | |
149 | return -ENODEV; | |
150 | ||
151 | pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); | |
152 | maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); | |
153 | ||
154 | acecad = kcalloc(1, sizeof(struct usb_acecad), GFP_KERNEL); | |
155 | if (!acecad) | |
156 | return -ENOMEM; | |
157 | ||
158 | acecad->data = usb_buffer_alloc(dev, 8, SLAB_KERNEL, &acecad->data_dma); | |
159 | if (!acecad->data) | |
160 | goto fail1; | |
161 | ||
162 | acecad->irq = usb_alloc_urb(0, GFP_KERNEL); | |
163 | if (!acecad->irq) | |
164 | goto fail2; | |
165 | ||
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 | ||
175 | usb_make_path(dev, path, sizeof(path)); | |
176 | snprintf(acecad->phys, sizeof(acecad->phys), "%s/input0", path); | |
177 | ||
178 | acecad->usbdev = dev; | |
179 | ||
180 | acecad->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); | |
181 | acecad->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE); | |
182 | acecad->dev.keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE); | |
183 | acecad->dev.keybit[LONG(BTN_DIGI)] = BIT(BTN_TOOL_PEN) |BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2); | |
184 | ||
185 | switch (id->driver_info) { | |
186 | case 0: | |
187 | acecad->dev.absmax[ABS_X] = 5000; | |
188 | acecad->dev.absmax[ABS_Y] = 3750; | |
189 | acecad->dev.absmax[ABS_PRESSURE] = 512; | |
190 | if (!strlen(acecad->name)) | |
191 | snprintf(acecad->name, sizeof(acecad->name), | |
192 | "USB Acecad Flair Tablet %04x:%04x", | |
193 | dev->descriptor.idVendor, dev->descriptor.idProduct); | |
194 | break; | |
195 | case 1: | |
196 | acecad->dev.absmax[ABS_X] = 3000; | |
197 | acecad->dev.absmax[ABS_Y] = 2250; | |
198 | acecad->dev.absmax[ABS_PRESSURE] = 1024; | |
199 | if (!strlen(acecad->name)) | |
200 | snprintf(acecad->name, sizeof(acecad->name), | |
201 | "USB Acecad 302 Tablet %04x:%04x", | |
202 | dev->descriptor.idVendor, dev->descriptor.idProduct); | |
203 | break; | |
204 | } | |
205 | ||
206 | acecad->dev.absfuzz[ABS_X] = 4; | |
207 | acecad->dev.absfuzz[ABS_Y] = 4; | |
208 | ||
209 | acecad->dev.private = acecad; | |
210 | acecad->dev.open = usb_acecad_open; | |
211 | acecad->dev.close = usb_acecad_close; | |
212 | ||
213 | acecad->dev.name = acecad->name; | |
214 | acecad->dev.phys = acecad->phys; | |
215 | acecad->dev.id.bustype = BUS_USB; | |
216 | acecad->dev.id.vendor = le16_to_cpu(dev->descriptor.idVendor); | |
217 | acecad->dev.id.product = le16_to_cpu(dev->descriptor.idProduct); | |
218 | acecad->dev.id.version = le16_to_cpu(dev->descriptor.bcdDevice); | |
219 | acecad->dev.dev = &intf->dev; | |
220 | ||
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 | ||
227 | input_register_device(&acecad->dev); | |
228 | ||
229 | printk(KERN_INFO "input: %s with packet size %d on %s\n", | |
230 | acecad->name, maxp, path); | |
231 | ||
232 | usb_set_intfdata(intf, acecad); | |
233 | ||
234 | return 0; | |
235 | ||
236 | fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma); | |
237 | fail1: 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->dev); | |
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 | .owner = THIS_MODULE, | |
265 | .name = "usb_acecad", | |
266 | .probe = usb_acecad_probe, | |
267 | .disconnect = usb_acecad_disconnect, | |
268 | .id_table = usb_acecad_id_table, | |
269 | }; | |
270 | ||
271 | static int __init usb_acecad_init(void) | |
272 | { | |
273 | int result = usb_register(&usb_acecad_driver); | |
274 | if (result == 0) | |
275 | info(DRIVER_VERSION ":" DRIVER_DESC); | |
276 | return result; | |
277 | } | |
278 | ||
279 | static void __exit usb_acecad_exit(void) | |
280 | { | |
281 | usb_deregister(&usb_acecad_driver); | |
282 | } | |
283 | ||
284 | module_init(usb_acecad_init); | |
285 | module_exit(usb_acecad_exit); |