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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> | |
53880546 SV |
30 | #include <linux/module.h> |
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; | |
c5b7c7c3 | 54 | struct input_dev *input; |
53880546 SV |
55 | struct urb *irq; |
56 | ||
57 | signed char *data; | |
58 | dma_addr_t data_dma; | |
59 | }; | |
60 | ||
7d12e780 | 61 | static void usb_acecad_irq(struct urb *urb) |
53880546 SV |
62 | { |
63 | struct usb_acecad *acecad = urb->context; | |
64 | unsigned char *data = acecad->data; | |
c5b7c7c3 | 65 | struct input_dev *dev = acecad->input; |
53880546 SV |
66 | 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); | |
c27a7482 DT |
89 | /* Pressure should compute the same way for flair and 302 */ |
90 | int pressure = data[5] | (data[6] << 8); | |
53880546 SV |
91 | 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 | ||
105 | resubmit: | |
c27a7482 | 106 | status = usb_submit_urb(urb, GFP_ATOMIC); |
53880546 | 107 | if (status) |
c27a7482 | 108 | err("can't resubmit intr, %s-%s/input0, status %d", |
53880546 SV |
109 | acecad->usbdev->bus->bus_name, acecad->usbdev->devpath, status); |
110 | } | |
111 | ||
112 | static 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 | ||
123 | static 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 | ||
130 | static 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; | |
c5b7c7c3 | 136 | struct input_dev *input_dev; |
53880546 | 137 | int pipe, maxp; |
53880546 SV |
138 | |
139 | if (interface->desc.bNumEndpoints != 1) | |
140 | return -ENODEV; | |
141 | ||
142 | endpoint = &interface->endpoint[0].desc; | |
143 | ||
ee709a3c | 144 | if (!usb_endpoint_is_int_in(endpoint)) |
53880546 SV |
145 | return -ENODEV; |
146 | ||
147 | pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); | |
148 | maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); | |
149 | ||
7b842b6e | 150 | acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL); |
c5b7c7c3 DT |
151 | input_dev = input_allocate_device(); |
152 | if (!acecad || !input_dev) | |
153 | goto fail1; | |
53880546 | 154 | |
e94b1766 | 155 | acecad->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &acecad->data_dma); |
53880546 SV |
156 | if (!acecad->data) |
157 | goto fail1; | |
158 | ||
159 | acecad->irq = usb_alloc_urb(0, GFP_KERNEL); | |
160 | if (!acecad->irq) | |
161 | goto fail2; | |
162 | ||
c5b7c7c3 DT |
163 | acecad->usbdev = dev; |
164 | acecad->input = input_dev; | |
165 | ||
53880546 SV |
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 | ||
c5b7c7c3 DT |
175 | usb_make_path(dev, acecad->phys, sizeof(acecad->phys)); |
176 | strlcat(acecad->phys, "/input0", sizeof(acecad->phys)); | |
53880546 | 177 | |
c5b7c7c3 DT |
178 | 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; | |
53880546 | 183 | |
c5b7c7c3 DT |
184 | 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); | |
53880546 SV |
191 | |
192 | switch (id->driver_info) { | |
193 | case 0: | |
c5b7c7c3 DT |
194 | input_dev->absmax[ABS_X] = 5000; |
195 | input_dev->absmax[ABS_Y] = 3750; | |
196 | input_dev->absmax[ABS_PRESSURE] = 512; | |
53880546 SV |
197 | if (!strlen(acecad->name)) |
198 | snprintf(acecad->name, sizeof(acecad->name), | |
199 | "USB Acecad Flair Tablet %04x:%04x", | |
c5b7c7c3 DT |
200 | le16_to_cpu(dev->descriptor.idVendor), |
201 | le16_to_cpu(dev->descriptor.idProduct)); | |
53880546 SV |
202 | break; |
203 | case 1: | |
c5b7c7c3 DT |
204 | input_dev->absmax[ABS_X] = 3000; |
205 | input_dev->absmax[ABS_Y] = 2250; | |
206 | input_dev->absmax[ABS_PRESSURE] = 1024; | |
53880546 SV |
207 | if (!strlen(acecad->name)) |
208 | snprintf(acecad->name, sizeof(acecad->name), | |
209 | "USB Acecad 302 Tablet %04x:%04x", | |
c5b7c7c3 DT |
210 | le16_to_cpu(dev->descriptor.idVendor), |
211 | le16_to_cpu(dev->descriptor.idProduct)); | |
53880546 SV |
212 | break; |
213 | } | |
214 | ||
c5b7c7c3 DT |
215 | input_dev->absfuzz[ABS_X] = 4; |
216 | input_dev->absfuzz[ABS_Y] = 4; | |
53880546 SV |
217 | |
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 | ||
c5b7c7c3 | 224 | input_register_device(acecad->input); |
53880546 SV |
225 | |
226 | usb_set_intfdata(intf, acecad); | |
227 | ||
228 | return 0; | |
229 | ||
230 | fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma); | |
c5b7c7c3 DT |
231 | fail1: input_free_device(input_dev); |
232 | kfree(acecad); | |
53880546 SV |
233 | return -ENOMEM; |
234 | } | |
235 | ||
236 | static 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); | |
c5b7c7c3 | 243 | input_unregister_device(acecad->input); |
53880546 SV |
244 | 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 | ||
250 | static 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 | ||
256 | MODULE_DEVICE_TABLE(usb, usb_acecad_id_table); | |
257 | ||
258 | static struct usb_driver usb_acecad_driver = { | |
53880546 SV |
259 | .name = "usb_acecad", |
260 | .probe = usb_acecad_probe, | |
261 | .disconnect = usb_acecad_disconnect, | |
262 | .id_table = usb_acecad_id_table, | |
263 | }; | |
264 | ||
265 | static 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 | ||
273 | static void __exit usb_acecad_exit(void) | |
274 | { | |
275 | usb_deregister(&usb_acecad_driver); | |
276 | } | |
277 | ||
278 | module_init(usb_acecad_init); | |
279 | module_exit(usb_acecad_exit); |