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f89bd95c HR |
1 | /* |
2 | * Apple USB BCM5974 (Macbook Air and Penryn Macbook Pro) multitouch driver | |
3 | * | |
4 | * Copyright (C) 2008 Henrik Rydberg (rydberg@euromail.se) | |
5 | * | |
6 | * The USB initialization and package decoding was made by | |
7 | * Scott Shawcroft as part of the touchd user-space driver project: | |
8 | * Copyright (C) 2008 Scott Shawcroft (scott.shawcroft@gmail.com) | |
9 | * | |
10 | * The BCM5974 driver is based on the appletouch driver: | |
11 | * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) | |
12 | * Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net) | |
13 | * Copyright (C) 2005 Stelian Pop (stelian@popies.net) | |
14 | * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de) | |
15 | * Copyright (C) 2005 Peter Osterlund (petero2@telia.com) | |
16 | * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch) | |
17 | * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch) | |
18 | * | |
19 | * This program is free software; you can redistribute it and/or modify | |
20 | * it under the terms of the GNU General Public License as published by | |
21 | * the Free Software Foundation; either version 2 of the License, or | |
22 | * (at your option) any later version. | |
23 | * | |
24 | * This program is distributed in the hope that it will be useful, | |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
28 | * | |
29 | * You should have received a copy of the GNU General Public License | |
30 | * along with this program; if not, write to the Free Software | |
31 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
32 | * | |
33 | */ | |
34 | ||
35 | #include <linux/kernel.h> | |
36 | #include <linux/errno.h> | |
37 | #include <linux/init.h> | |
38 | #include <linux/slab.h> | |
39 | #include <linux/module.h> | |
40 | #include <linux/usb/input.h> | |
41 | #include <linux/hid.h> | |
42 | #include <linux/mutex.h> | |
43 | ||
44 | #define USB_VENDOR_ID_APPLE 0x05ac | |
45 | ||
46 | /* MacbookAir, aka wellspring */ | |
47 | #define USB_DEVICE_ID_APPLE_WELLSPRING_ANSI 0x0223 | |
48 | #define USB_DEVICE_ID_APPLE_WELLSPRING_ISO 0x0224 | |
49 | #define USB_DEVICE_ID_APPLE_WELLSPRING_JIS 0x0225 | |
50 | /* MacbookProPenryn, aka wellspring2 */ | |
51 | #define USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI 0x0230 | |
52 | #define USB_DEVICE_ID_APPLE_WELLSPRING2_ISO 0x0231 | |
53 | #define USB_DEVICE_ID_APPLE_WELLSPRING2_JIS 0x0232 | |
158e9287 HR |
54 | /* Macbook5,1 (unibody), aka wellspring3 */ |
55 | #define USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI 0x0236 | |
56 | #define USB_DEVICE_ID_APPLE_WELLSPRING3_ISO 0x0237 | |
57 | #define USB_DEVICE_ID_APPLE_WELLSPRING3_JIS 0x0238 | |
6021afcf EH |
58 | /* MacbookAir3,2 (unibody), aka wellspring5 */ |
59 | #define USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI 0x023f | |
60 | #define USB_DEVICE_ID_APPLE_WELLSPRING4_ISO 0x0240 | |
61 | #define USB_DEVICE_ID_APPLE_WELLSPRING4_JIS 0x0241 | |
62 | /* MacbookAir3,1 (unibody), aka wellspring4 */ | |
63 | #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI 0x0242 | |
64 | #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO 0x0243 | |
65 | #define USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS 0x0244 | |
47340bd9 AB |
66 | /* Macbook8 (unibody, March 2011) */ |
67 | #define USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI 0x0245 | |
68 | #define USB_DEVICE_ID_APPLE_WELLSPRING5_ISO 0x0246 | |
69 | #define USB_DEVICE_ID_APPLE_WELLSPRING5_JIS 0x0247 | |
1c601bea PAVM |
70 | /* MacbookAir4,1 (unibody, July 2011) */ |
71 | #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI 0x0249 | |
72 | #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO 0x024a | |
73 | #define USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS 0x024b | |
db0b34b0 JD |
74 | /* MacbookAir4,2 (unibody, July 2011) */ |
75 | #define USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI 0x024c | |
76 | #define USB_DEVICE_ID_APPLE_WELLSPRING6_ISO 0x024d | |
77 | #define USB_DEVICE_ID_APPLE_WELLSPRING6_JIS 0x024e | |
c331eb58 AD |
78 | /* Macbook8,2 (unibody) */ |
79 | #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI 0x0252 | |
80 | #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO 0x0253 | |
81 | #define USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS 0x0254 | |
3dde22a9 HR |
82 | /* MacbookPro10,1 (unibody, June 2012) */ |
83 | #define USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI 0x0262 | |
84 | #define USB_DEVICE_ID_APPLE_WELLSPRING7_ISO 0x0263 | |
85 | #define USB_DEVICE_ID_APPLE_WELLSPRING7_JIS 0x0264 | |
f89bd95c HR |
86 | |
87 | #define BCM5974_DEVICE(prod) { \ | |
88 | .match_flags = (USB_DEVICE_ID_MATCH_DEVICE | \ | |
89 | USB_DEVICE_ID_MATCH_INT_CLASS | \ | |
90 | USB_DEVICE_ID_MATCH_INT_PROTOCOL), \ | |
91 | .idVendor = USB_VENDOR_ID_APPLE, \ | |
92 | .idProduct = (prod), \ | |
93 | .bInterfaceClass = USB_INTERFACE_CLASS_HID, \ | |
94 | .bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE \ | |
95 | } | |
96 | ||
97 | /* table of devices that work with this driver */ | |
158e0fb6 | 98 | static const struct usb_device_id bcm5974_table[] = { |
f89bd95c HR |
99 | /* MacbookAir1.1 */ |
100 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ANSI), | |
101 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ISO), | |
102 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_JIS), | |
103 | /* MacbookProPenryn */ | |
104 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI), | |
105 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ISO), | |
106 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_JIS), | |
158e9287 HR |
107 | /* Macbook5,1 */ |
108 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI), | |
109 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ISO), | |
110 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_JIS), | |
6021afcf EH |
111 | /* MacbookAir3,2 */ |
112 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI), | |
113 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ISO), | |
114 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_JIS), | |
115 | /* MacbookAir3,1 */ | |
116 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI), | |
117 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO), | |
118 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS), | |
47340bd9 AB |
119 | /* MacbookPro8 */ |
120 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI), | |
121 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO), | |
122 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS), | |
1c601bea PAVM |
123 | /* MacbookAir4,1 */ |
124 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI), | |
125 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO), | |
126 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS), | |
db0b34b0 JD |
127 | /* MacbookAir4,2 */ |
128 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI), | |
129 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ISO), | |
130 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_JIS), | |
c331eb58 AD |
131 | /* MacbookPro8,2 */ |
132 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI), | |
133 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO), | |
134 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS), | |
3dde22a9 HR |
135 | /* MacbookPro10,1 */ |
136 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI), | |
137 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ISO), | |
138 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_JIS), | |
f89bd95c HR |
139 | /* Terminating entry */ |
140 | {} | |
141 | }; | |
142 | MODULE_DEVICE_TABLE(usb, bcm5974_table); | |
143 | ||
144 | MODULE_AUTHOR("Henrik Rydberg"); | |
145 | MODULE_DESCRIPTION("Apple USB BCM5974 multitouch driver"); | |
146 | MODULE_LICENSE("GPL"); | |
147 | ||
148 | #define dprintk(level, format, a...)\ | |
149 | { if (debug >= level) printk(KERN_DEBUG format, ##a); } | |
150 | ||
151 | static int debug = 1; | |
152 | module_param(debug, int, 0644); | |
153 | MODULE_PARM_DESC(debug, "Activate debugging output"); | |
154 | ||
155 | /* button data structure */ | |
156 | struct bt_data { | |
157 | u8 unknown1; /* constant */ | |
158 | u8 button; /* left button */ | |
159 | u8 rel_x; /* relative x coordinate */ | |
160 | u8 rel_y; /* relative y coordinate */ | |
161 | }; | |
162 | ||
9894cf0f HR |
163 | /* trackpad header types */ |
164 | enum tp_type { | |
158e9287 HR |
165 | TYPE1, /* plain trackpad */ |
166 | TYPE2 /* button integrated in trackpad */ | |
f89bd95c HR |
167 | }; |
168 | ||
9894cf0f HR |
169 | /* trackpad finger data offsets, le16-aligned */ |
170 | #define FINGER_TYPE1 (13 * sizeof(__le16)) | |
158e9287 HR |
171 | #define FINGER_TYPE2 (15 * sizeof(__le16)) |
172 | ||
173 | /* trackpad button data offsets */ | |
174 | #define BUTTON_TYPE2 15 | |
175 | ||
176 | /* list of device capability bits */ | |
177 | #define HAS_INTEGRATED_BUTTON 1 | |
9894cf0f HR |
178 | |
179 | /* trackpad finger structure, le16-aligned */ | |
f89bd95c | 180 | struct tp_finger { |
75e21e3f | 181 | __le16 origin; /* zero when switching track finger */ |
f89bd95c HR |
182 | __le16 abs_x; /* absolute x coodinate */ |
183 | __le16 abs_y; /* absolute y coodinate */ | |
184 | __le16 rel_x; /* relative x coodinate */ | |
185 | __le16 rel_y; /* relative y coodinate */ | |
f17953ab HR |
186 | __le16 tool_major; /* tool area, major axis */ |
187 | __le16 tool_minor; /* tool area, minor axis */ | |
f89bd95c | 188 | __le16 orientation; /* 16384 when point, else 15 bit angle */ |
f17953ab HR |
189 | __le16 touch_major; /* touch area, major axis */ |
190 | __le16 touch_minor; /* touch area, minor axis */ | |
f89bd95c HR |
191 | __le16 unused[3]; /* zeros */ |
192 | __le16 multi; /* one finger: varies, more fingers: constant */ | |
9894cf0f | 193 | } __attribute__((packed,aligned(2))); |
f89bd95c | 194 | |
9894cf0f | 195 | /* trackpad finger data size, empirically at least ten fingers */ |
f17953ab | 196 | #define MAX_FINGERS 16 |
9894cf0f | 197 | #define SIZEOF_FINGER sizeof(struct tp_finger) |
f17953ab | 198 | #define SIZEOF_ALL_FINGERS (MAX_FINGERS * SIZEOF_FINGER) |
6f2701b7 | 199 | #define MAX_FINGER_ORIENTATION 16384 |
f89bd95c HR |
200 | |
201 | /* device-specific parameters */ | |
202 | struct bcm5974_param { | |
0e726966 HR |
203 | int snratio; /* signal-to-noise ratio */ |
204 | int min; /* device minimum reading */ | |
205 | int max; /* device maximum reading */ | |
f89bd95c HR |
206 | }; |
207 | ||
208 | /* device-specific configuration */ | |
209 | struct bcm5974_config { | |
210 | int ansi, iso, jis; /* the product id of this device */ | |
158e9287 | 211 | int caps; /* device capability bitmask */ |
f89bd95c HR |
212 | int bt_ep; /* the endpoint of the button interface */ |
213 | int bt_datalen; /* data length of the button interface */ | |
214 | int tp_ep; /* the endpoint of the trackpad interface */ | |
9894cf0f HR |
215 | enum tp_type tp_type; /* type of trackpad interface */ |
216 | int tp_offset; /* offset to trackpad finger data */ | |
f89bd95c HR |
217 | int tp_datalen; /* data length of the trackpad interface */ |
218 | struct bcm5974_param p; /* finger pressure limits */ | |
219 | struct bcm5974_param w; /* finger width limits */ | |
220 | struct bcm5974_param x; /* horizontal limits */ | |
221 | struct bcm5974_param y; /* vertical limits */ | |
0e726966 | 222 | struct bcm5974_param o; /* orientation limits */ |
f89bd95c HR |
223 | }; |
224 | ||
225 | /* logical device structure */ | |
226 | struct bcm5974 { | |
227 | char phys[64]; | |
228 | struct usb_device *udev; /* usb device */ | |
88da765f | 229 | struct usb_interface *intf; /* our interface */ |
f89bd95c HR |
230 | struct input_dev *input; /* input dev */ |
231 | struct bcm5974_config cfg; /* device configuration */ | |
232 | struct mutex pm_mutex; /* serialize access to open/suspend */ | |
233 | int opened; /* 1: opened, 0: closed */ | |
234 | struct urb *bt_urb; /* button usb request block */ | |
235 | struct bt_data *bt_data; /* button transferred data */ | |
236 | struct urb *tp_urb; /* trackpad usb request block */ | |
9894cf0f | 237 | u8 *tp_data; /* trackpad transferred data */ |
f89bd95c HR |
238 | }; |
239 | ||
f89bd95c HR |
240 | /* logical signal quality */ |
241 | #define SN_PRESSURE 45 /* pressure signal-to-noise ratio */ | |
242 | #define SN_WIDTH 100 /* width signal-to-noise ratio */ | |
243 | #define SN_COORD 250 /* coordinate signal-to-noise ratio */ | |
0e726966 | 244 | #define SN_ORIENT 10 /* orientation signal-to-noise ratio */ |
75e21e3f | 245 | |
f89bd95c HR |
246 | /* device constants */ |
247 | static const struct bcm5974_config bcm5974_config_table[] = { | |
248 | { | |
249 | USB_DEVICE_ID_APPLE_WELLSPRING_ANSI, | |
250 | USB_DEVICE_ID_APPLE_WELLSPRING_ISO, | |
251 | USB_DEVICE_ID_APPLE_WELLSPRING_JIS, | |
158e9287 | 252 | 0, |
f89bd95c | 253 | 0x84, sizeof(struct bt_data), |
9894cf0f | 254 | 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS, |
0e726966 HR |
255 | { SN_PRESSURE, 0, 256 }, |
256 | { SN_WIDTH, 0, 2048 }, | |
257 | { SN_COORD, -4824, 5342 }, | |
258 | { SN_COORD, -172, 5820 }, | |
259 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
f89bd95c HR |
260 | }, |
261 | { | |
262 | USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI, | |
263 | USB_DEVICE_ID_APPLE_WELLSPRING2_ISO, | |
264 | USB_DEVICE_ID_APPLE_WELLSPRING2_JIS, | |
158e9287 | 265 | 0, |
f89bd95c | 266 | 0x84, sizeof(struct bt_data), |
9894cf0f | 267 | 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS, |
0e726966 HR |
268 | { SN_PRESSURE, 0, 256 }, |
269 | { SN_WIDTH, 0, 2048 }, | |
270 | { SN_COORD, -4824, 4824 }, | |
271 | { SN_COORD, -172, 4290 }, | |
272 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
f89bd95c | 273 | }, |
158e9287 HR |
274 | { |
275 | USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI, | |
276 | USB_DEVICE_ID_APPLE_WELLSPRING3_ISO, | |
277 | USB_DEVICE_ID_APPLE_WELLSPRING3_JIS, | |
278 | HAS_INTEGRATED_BUTTON, | |
279 | 0x84, sizeof(struct bt_data), | |
280 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
281 | { SN_PRESSURE, 0, 300 }, |
282 | { SN_WIDTH, 0, 2048 }, | |
283 | { SN_COORD, -4460, 5166 }, | |
284 | { SN_COORD, -75, 6700 }, | |
285 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
158e9287 | 286 | }, |
6021afcf EH |
287 | { |
288 | USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI, | |
289 | USB_DEVICE_ID_APPLE_WELLSPRING4_ISO, | |
290 | USB_DEVICE_ID_APPLE_WELLSPRING4_JIS, | |
291 | HAS_INTEGRATED_BUTTON, | |
292 | 0x84, sizeof(struct bt_data), | |
293 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
294 | { SN_PRESSURE, 0, 300 }, |
295 | { SN_WIDTH, 0, 2048 }, | |
296 | { SN_COORD, -4620, 5140 }, | |
297 | { SN_COORD, -150, 6600 }, | |
298 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
6021afcf EH |
299 | }, |
300 | { | |
301 | USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI, | |
302 | USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO, | |
303 | USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS, | |
304 | HAS_INTEGRATED_BUTTON, | |
305 | 0x84, sizeof(struct bt_data), | |
306 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
307 | { SN_PRESSURE, 0, 300 }, |
308 | { SN_WIDTH, 0, 2048 }, | |
309 | { SN_COORD, -4616, 5112 }, | |
310 | { SN_COORD, -142, 5234 }, | |
311 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
6021afcf | 312 | }, |
47340bd9 AB |
313 | { |
314 | USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI, | |
315 | USB_DEVICE_ID_APPLE_WELLSPRING5_ISO, | |
316 | USB_DEVICE_ID_APPLE_WELLSPRING5_JIS, | |
317 | HAS_INTEGRATED_BUTTON, | |
318 | 0x84, sizeof(struct bt_data), | |
319 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
320 | { SN_PRESSURE, 0, 300 }, |
321 | { SN_WIDTH, 0, 2048 }, | |
322 | { SN_COORD, -4415, 5050 }, | |
323 | { SN_COORD, -55, 6680 }, | |
324 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
47340bd9 | 325 | }, |
db0b34b0 JD |
326 | { |
327 | USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI, | |
328 | USB_DEVICE_ID_APPLE_WELLSPRING6_ISO, | |
329 | USB_DEVICE_ID_APPLE_WELLSPRING6_JIS, | |
330 | HAS_INTEGRATED_BUTTON, | |
331 | 0x84, sizeof(struct bt_data), | |
332 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
333 | { SN_PRESSURE, 0, 300 }, |
334 | { SN_WIDTH, 0, 2048 }, | |
335 | { SN_COORD, -4620, 5140 }, | |
336 | { SN_COORD, -150, 6600 }, | |
337 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
db0b34b0 | 338 | }, |
c331eb58 AD |
339 | { |
340 | USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI, | |
341 | USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO, | |
342 | USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS, | |
343 | HAS_INTEGRATED_BUTTON, | |
344 | 0x84, sizeof(struct bt_data), | |
345 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
346 | { SN_PRESSURE, 0, 300 }, |
347 | { SN_WIDTH, 0, 2048 }, | |
348 | { SN_COORD, -4750, 5280 }, | |
349 | { SN_COORD, -150, 6730 }, | |
350 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
c331eb58 | 351 | }, |
1c601bea PAVM |
352 | { |
353 | USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI, | |
354 | USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO, | |
355 | USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS, | |
356 | HAS_INTEGRATED_BUTTON, | |
357 | 0x84, sizeof(struct bt_data), | |
358 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
359 | { SN_PRESSURE, 0, 300 }, |
360 | { SN_WIDTH, 0, 2048 }, | |
361 | { SN_COORD, -4620, 5140 }, | |
362 | { SN_COORD, -150, 6600 }, | |
363 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
1c601bea | 364 | }, |
3dde22a9 HR |
365 | { |
366 | USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI, | |
367 | USB_DEVICE_ID_APPLE_WELLSPRING7_ISO, | |
368 | USB_DEVICE_ID_APPLE_WELLSPRING7_JIS, | |
369 | HAS_INTEGRATED_BUTTON, | |
370 | 0x84, sizeof(struct bt_data), | |
371 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
372 | { SN_PRESSURE, 0, 300 }, |
373 | { SN_WIDTH, 0, 2048 }, | |
374 | { SN_COORD, -4750, 5280 }, | |
375 | { SN_COORD, -150, 6730 }, | |
376 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
3dde22a9 | 377 | }, |
f89bd95c HR |
378 | {} |
379 | }; | |
380 | ||
381 | /* return the device-specific configuration by device */ | |
382 | static const struct bcm5974_config *bcm5974_get_config(struct usb_device *udev) | |
383 | { | |
384 | u16 id = le16_to_cpu(udev->descriptor.idProduct); | |
385 | const struct bcm5974_config *cfg; | |
386 | ||
387 | for (cfg = bcm5974_config_table; cfg->ansi; ++cfg) | |
388 | if (cfg->ansi == id || cfg->iso == id || cfg->jis == id) | |
389 | return cfg; | |
390 | ||
391 | return bcm5974_config_table; | |
392 | } | |
393 | ||
394 | /* convert 16-bit little endian to signed integer */ | |
395 | static inline int raw2int(__le16 x) | |
396 | { | |
397 | return (signed short)le16_to_cpu(x); | |
398 | } | |
399 | ||
0e726966 HR |
400 | static void set_abs(struct input_dev *input, unsigned int code, |
401 | const struct bcm5974_param *p) | |
f89bd95c | 402 | { |
0e726966 HR |
403 | int fuzz = p->snratio ? (p->max - p->min) / p->snratio : 0; |
404 | input_set_abs_params(input, code, p->min, p->max, fuzz, 0); | |
f89bd95c HR |
405 | } |
406 | ||
407 | /* setup which logical events to report */ | |
408 | static void setup_events_to_report(struct input_dev *input_dev, | |
409 | const struct bcm5974_config *cfg) | |
410 | { | |
411 | __set_bit(EV_ABS, input_dev->evbit); | |
412 | ||
0e726966 HR |
413 | /* for synaptics only */ |
414 | input_set_abs_params(input_dev, ABS_PRESSURE, 0, 256, 5, 0); | |
415 | input_set_abs_params(input_dev, ABS_TOOL_WIDTH, 0, 16, 0, 0); | |
416 | ||
417 | /* pointer emulation */ | |
418 | set_abs(input_dev, ABS_X, &cfg->x); | |
419 | set_abs(input_dev, ABS_Y, &cfg->y); | |
f89bd95c | 420 | |
6f2701b7 | 421 | /* finger touch area */ |
0e726966 HR |
422 | set_abs(input_dev, ABS_MT_TOUCH_MAJOR, &cfg->w); |
423 | set_abs(input_dev, ABS_MT_TOUCH_MINOR, &cfg->w); | |
6f2701b7 | 424 | /* finger approach area */ |
0e726966 HR |
425 | set_abs(input_dev, ABS_MT_WIDTH_MAJOR, &cfg->w); |
426 | set_abs(input_dev, ABS_MT_WIDTH_MINOR, &cfg->w); | |
6f2701b7 | 427 | /* finger orientation */ |
0e726966 | 428 | set_abs(input_dev, ABS_MT_ORIENTATION, &cfg->o); |
6f2701b7 | 429 | /* finger position */ |
0e726966 HR |
430 | set_abs(input_dev, ABS_MT_POSITION_X, &cfg->x); |
431 | set_abs(input_dev, ABS_MT_POSITION_Y, &cfg->y); | |
6f2701b7 | 432 | |
f89bd95c | 433 | __set_bit(EV_KEY, input_dev->evbit); |
a6821f34 | 434 | __set_bit(BTN_TOUCH, input_dev->keybit); |
f89bd95c HR |
435 | __set_bit(BTN_TOOL_FINGER, input_dev->keybit); |
436 | __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit); | |
437 | __set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit); | |
6916d97f | 438 | __set_bit(BTN_TOOL_QUADTAP, input_dev->keybit); |
f89bd95c | 439 | __set_bit(BTN_LEFT, input_dev->keybit); |
c13aea03 | 440 | |
7491f3df | 441 | __set_bit(INPUT_PROP_POINTER, input_dev->propbit); |
52965cc0 JP |
442 | if (cfg->caps & HAS_INTEGRATED_BUTTON) |
443 | __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit); | |
444 | ||
c13aea03 | 445 | input_set_events_per_packet(input_dev, 60); |
f89bd95c HR |
446 | } |
447 | ||
448 | /* report button data as logical button state */ | |
449 | static int report_bt_state(struct bcm5974 *dev, int size) | |
450 | { | |
451 | if (size != sizeof(struct bt_data)) | |
452 | return -EIO; | |
453 | ||
53402193 HR |
454 | dprintk(7, |
455 | "bcm5974: button data: %x %x %x %x\n", | |
456 | dev->bt_data->unknown1, dev->bt_data->button, | |
457 | dev->bt_data->rel_x, dev->bt_data->rel_y); | |
458 | ||
f89bd95c HR |
459 | input_report_key(dev->input, BTN_LEFT, dev->bt_data->button); |
460 | input_sync(dev->input); | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
6f2701b7 HR |
465 | static void report_finger_data(struct input_dev *input, |
466 | const struct bcm5974_config *cfg, | |
467 | const struct tp_finger *f) | |
468 | { | |
57157bec | 469 | input_report_abs(input, ABS_MT_TOUCH_MAJOR, |
f17953ab | 470 | raw2int(f->touch_major) << 1); |
57157bec | 471 | input_report_abs(input, ABS_MT_TOUCH_MINOR, |
f17953ab | 472 | raw2int(f->touch_minor) << 1); |
57157bec | 473 | input_report_abs(input, ABS_MT_WIDTH_MAJOR, |
f17953ab | 474 | raw2int(f->tool_major) << 1); |
57157bec | 475 | input_report_abs(input, ABS_MT_WIDTH_MINOR, |
f17953ab | 476 | raw2int(f->tool_minor) << 1); |
6f2701b7 HR |
477 | input_report_abs(input, ABS_MT_ORIENTATION, |
478 | MAX_FINGER_ORIENTATION - raw2int(f->orientation)); | |
479 | input_report_abs(input, ABS_MT_POSITION_X, raw2int(f->abs_x)); | |
480 | input_report_abs(input, ABS_MT_POSITION_Y, | |
0e726966 | 481 | cfg->y.min + cfg->y.max - raw2int(f->abs_y)); |
6f2701b7 HR |
482 | input_mt_sync(input); |
483 | } | |
484 | ||
0e726966 HR |
485 | static void report_synaptics_data(struct input_dev *input, |
486 | const struct bcm5974_config *cfg, | |
487 | const struct tp_finger *f, int raw_n) | |
488 | { | |
489 | int abs_p = 0, abs_w = 0; | |
490 | ||
491 | if (raw_n) { | |
492 | int p = raw2int(f->touch_major); | |
493 | int w = raw2int(f->tool_major); | |
494 | if (p > 0 && raw2int(f->origin)) { | |
495 | abs_p = clamp_val(256 * p / cfg->p.max, 0, 255); | |
496 | abs_w = clamp_val(16 * w / cfg->w.max, 0, 15); | |
497 | } | |
498 | } | |
499 | ||
500 | input_report_abs(input, ABS_PRESSURE, abs_p); | |
501 | input_report_abs(input, ABS_TOOL_WIDTH, abs_w); | |
502 | } | |
503 | ||
f89bd95c HR |
504 | /* report trackpad data as logical trackpad state */ |
505 | static int report_tp_state(struct bcm5974 *dev, int size) | |
506 | { | |
507 | const struct bcm5974_config *c = &dev->cfg; | |
9894cf0f | 508 | const struct tp_finger *f; |
f89bd95c | 509 | struct input_dev *input = dev->input; |
0e726966 HR |
510 | int raw_n, i; |
511 | int abs_x = 0, abs_y = 0, n = 0; | |
f89bd95c | 512 | |
9894cf0f | 513 | if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0) |
f89bd95c HR |
514 | return -EIO; |
515 | ||
9894cf0f HR |
516 | /* finger data, le16-aligned */ |
517 | f = (const struct tp_finger *)(dev->tp_data + c->tp_offset); | |
518 | raw_n = (size - c->tp_offset) / SIZEOF_FINGER; | |
519 | ||
75e21e3f | 520 | /* always track the first finger; when detached, start over */ |
9894cf0f | 521 | if (raw_n) { |
6f2701b7 HR |
522 | |
523 | /* report raw trackpad data */ | |
524 | for (i = 0; i < raw_n; i++) | |
525 | report_finger_data(input, c, &f[i]); | |
526 | ||
9de48cc3 | 527 | /* while tracking finger still valid, count all fingers */ |
0e726966 HR |
528 | if (raw2int(f->touch_major) > 0 && raw2int(f->origin)) { |
529 | abs_x = raw2int(f->abs_x); | |
530 | abs_y = c->y.min + c->y.max - raw2int(f->abs_y); | |
531 | for (i = 0; i < raw_n; i++) | |
532 | if (raw2int(f[i].touch_major) > 0) | |
533 | n++; | |
75e21e3f | 534 | } |
f89bd95c HR |
535 | } |
536 | ||
0e726966 HR |
537 | input_report_key(input, BTN_TOUCH, n > 0); |
538 | input_report_key(input, BTN_TOOL_FINGER, n == 1); | |
539 | input_report_key(input, BTN_TOOL_DOUBLETAP, n == 2); | |
540 | input_report_key(input, BTN_TOOL_TRIPLETAP, n == 3); | |
541 | input_report_key(input, BTN_TOOL_QUADTAP, n > 3); | |
75e21e3f | 542 | |
0e726966 | 543 | report_synaptics_data(input, c, f, raw_n); |
f89bd95c | 544 | |
0e726966 | 545 | if (n > 0) { |
75e21e3f HR |
546 | input_report_abs(input, ABS_X, abs_x); |
547 | input_report_abs(input, ABS_Y, abs_y); | |
75e21e3f | 548 | } |
f89bd95c | 549 | |
158e9287 | 550 | /* type 2 reports button events via ibt only */ |
0e726966 HR |
551 | if (c->tp_type == TYPE2) { |
552 | int ibt = raw2int(dev->tp_data[BUTTON_TYPE2]); | |
158e9287 | 553 | input_report_key(input, BTN_LEFT, ibt); |
0e726966 | 554 | } |
158e9287 | 555 | |
f89bd95c HR |
556 | input_sync(input); |
557 | ||
558 | return 0; | |
559 | } | |
560 | ||
561 | /* Wellspring initialization constants */ | |
562 | #define BCM5974_WELLSPRING_MODE_READ_REQUEST_ID 1 | |
563 | #define BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID 9 | |
564 | #define BCM5974_WELLSPRING_MODE_REQUEST_VALUE 0x300 | |
565 | #define BCM5974_WELLSPRING_MODE_REQUEST_INDEX 0 | |
566 | #define BCM5974_WELLSPRING_MODE_VENDOR_VALUE 0x01 | |
cd72ad3f | 567 | #define BCM5974_WELLSPRING_MODE_NORMAL_VALUE 0x08 |
f89bd95c | 568 | |
cd72ad3f | 569 | static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on) |
f89bd95c HR |
570 | { |
571 | char *data = kmalloc(8, GFP_KERNEL); | |
572 | int retval = 0, size; | |
573 | ||
574 | if (!data) { | |
ab943ca8 | 575 | dev_err(&dev->intf->dev, "out of memory\n"); |
f89bd95c HR |
576 | retval = -ENOMEM; |
577 | goto out; | |
578 | } | |
579 | ||
580 | /* read configuration */ | |
581 | size = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), | |
582 | BCM5974_WELLSPRING_MODE_READ_REQUEST_ID, | |
583 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
584 | BCM5974_WELLSPRING_MODE_REQUEST_VALUE, | |
585 | BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000); | |
586 | ||
587 | if (size != 8) { | |
ab943ca8 | 588 | dev_err(&dev->intf->dev, "could not read from device\n"); |
f89bd95c HR |
589 | retval = -EIO; |
590 | goto out; | |
591 | } | |
592 | ||
593 | /* apply the mode switch */ | |
cd72ad3f HR |
594 | data[0] = on ? |
595 | BCM5974_WELLSPRING_MODE_VENDOR_VALUE : | |
596 | BCM5974_WELLSPRING_MODE_NORMAL_VALUE; | |
f89bd95c HR |
597 | |
598 | /* write configuration */ | |
599 | size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), | |
600 | BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID, | |
601 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
602 | BCM5974_WELLSPRING_MODE_REQUEST_VALUE, | |
603 | BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000); | |
604 | ||
605 | if (size != 8) { | |
ab943ca8 | 606 | dev_err(&dev->intf->dev, "could not write to device\n"); |
f89bd95c HR |
607 | retval = -EIO; |
608 | goto out; | |
609 | } | |
610 | ||
cd72ad3f HR |
611 | dprintk(2, "bcm5974: switched to %s mode.\n", |
612 | on ? "wellspring" : "normal"); | |
f89bd95c HR |
613 | |
614 | out: | |
615 | kfree(data); | |
616 | return retval; | |
617 | } | |
618 | ||
619 | static void bcm5974_irq_button(struct urb *urb) | |
620 | { | |
621 | struct bcm5974 *dev = urb->context; | |
ab943ca8 | 622 | struct usb_interface *intf = dev->intf; |
f89bd95c HR |
623 | int error; |
624 | ||
625 | switch (urb->status) { | |
626 | case 0: | |
627 | break; | |
628 | case -EOVERFLOW: | |
629 | case -ECONNRESET: | |
630 | case -ENOENT: | |
631 | case -ESHUTDOWN: | |
ab943ca8 | 632 | dev_dbg(&intf->dev, "button urb shutting down: %d\n", |
bd028769 | 633 | urb->status); |
f89bd95c HR |
634 | return; |
635 | default: | |
ab943ca8 | 636 | dev_dbg(&intf->dev, "button urb status: %d\n", urb->status); |
f89bd95c HR |
637 | goto exit; |
638 | } | |
639 | ||
640 | if (report_bt_state(dev, dev->bt_urb->actual_length)) | |
641 | dprintk(1, "bcm5974: bad button package, length: %d\n", | |
642 | dev->bt_urb->actual_length); | |
643 | ||
644 | exit: | |
645 | error = usb_submit_urb(dev->bt_urb, GFP_ATOMIC); | |
646 | if (error) | |
ab943ca8 | 647 | dev_err(&intf->dev, "button urb failed: %d\n", error); |
f89bd95c HR |
648 | } |
649 | ||
650 | static void bcm5974_irq_trackpad(struct urb *urb) | |
651 | { | |
652 | struct bcm5974 *dev = urb->context; | |
ab943ca8 | 653 | struct usb_interface *intf = dev->intf; |
f89bd95c HR |
654 | int error; |
655 | ||
656 | switch (urb->status) { | |
657 | case 0: | |
658 | break; | |
659 | case -EOVERFLOW: | |
660 | case -ECONNRESET: | |
661 | case -ENOENT: | |
662 | case -ESHUTDOWN: | |
ab943ca8 | 663 | dev_dbg(&intf->dev, "trackpad urb shutting down: %d\n", |
bd028769 | 664 | urb->status); |
f89bd95c HR |
665 | return; |
666 | default: | |
ab943ca8 | 667 | dev_dbg(&intf->dev, "trackpad urb status: %d\n", urb->status); |
f89bd95c HR |
668 | goto exit; |
669 | } | |
670 | ||
671 | /* control response ignored */ | |
672 | if (dev->tp_urb->actual_length == 2) | |
673 | goto exit; | |
674 | ||
675 | if (report_tp_state(dev, dev->tp_urb->actual_length)) | |
676 | dprintk(1, "bcm5974: bad trackpad package, length: %d\n", | |
677 | dev->tp_urb->actual_length); | |
678 | ||
679 | exit: | |
680 | error = usb_submit_urb(dev->tp_urb, GFP_ATOMIC); | |
681 | if (error) | |
ab943ca8 | 682 | dev_err(&intf->dev, "trackpad urb failed: %d\n", error); |
f89bd95c HR |
683 | } |
684 | ||
685 | /* | |
686 | * The Wellspring trackpad, like many recent Apple trackpads, share | |
687 | * the usb device with the keyboard. Since keyboards are usually | |
688 | * handled by the HID system, the device ends up being handled by two | |
689 | * modules. Setting up the device therefore becomes slightly | |
690 | * complicated. To enable multitouch features, a mode switch is | |
691 | * required, which is usually applied via the control interface of the | |
692 | * device. It can be argued where this switch should take place. In | |
693 | * some drivers, like appletouch, the switch is made during | |
694 | * probe. However, the hid module may also alter the state of the | |
695 | * device, resulting in trackpad malfunction under certain | |
696 | * circumstances. To get around this problem, there is at least one | |
697 | * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to | |
25985edc | 698 | * receive a reset_resume request rather than the normal resume. |
f89bd95c HR |
699 | * Since the implementation of reset_resume is equal to mode switch |
700 | * plus start_traffic, it seems easier to always do the switch when | |
701 | * starting traffic on the device. | |
702 | */ | |
703 | static int bcm5974_start_traffic(struct bcm5974 *dev) | |
704 | { | |
1719ec41 LJ |
705 | int error; |
706 | ||
707 | error = bcm5974_wellspring_mode(dev, true); | |
708 | if (error) { | |
f89bd95c | 709 | dprintk(1, "bcm5974: mode switch failed\n"); |
1719ec41 | 710 | goto err_out; |
f89bd95c HR |
711 | } |
712 | ||
43f482b4 HR |
713 | if (dev->bt_urb) { |
714 | error = usb_submit_urb(dev->bt_urb, GFP_KERNEL); | |
715 | if (error) | |
716 | goto err_reset_mode; | |
717 | } | |
f89bd95c | 718 | |
1719ec41 LJ |
719 | error = usb_submit_urb(dev->tp_urb, GFP_KERNEL); |
720 | if (error) | |
f89bd95c HR |
721 | goto err_kill_bt; |
722 | ||
723 | return 0; | |
724 | ||
725 | err_kill_bt: | |
726 | usb_kill_urb(dev->bt_urb); | |
1719ec41 LJ |
727 | err_reset_mode: |
728 | bcm5974_wellspring_mode(dev, false); | |
729 | err_out: | |
730 | return error; | |
f89bd95c HR |
731 | } |
732 | ||
733 | static void bcm5974_pause_traffic(struct bcm5974 *dev) | |
734 | { | |
735 | usb_kill_urb(dev->tp_urb); | |
736 | usb_kill_urb(dev->bt_urb); | |
cd72ad3f | 737 | bcm5974_wellspring_mode(dev, false); |
f89bd95c HR |
738 | } |
739 | ||
740 | /* | |
741 | * The code below implements open/close and manual suspend/resume. | |
742 | * All functions may be called in random order. | |
743 | * | |
744 | * Opening a suspended device fails with EACCES - permission denied. | |
745 | * | |
746 | * Failing a resume leaves the device resumed but closed. | |
747 | */ | |
748 | static int bcm5974_open(struct input_dev *input) | |
749 | { | |
750 | struct bcm5974 *dev = input_get_drvdata(input); | |
751 | int error; | |
752 | ||
88da765f DT |
753 | error = usb_autopm_get_interface(dev->intf); |
754 | if (error) | |
755 | return error; | |
756 | ||
f89bd95c HR |
757 | mutex_lock(&dev->pm_mutex); |
758 | ||
759 | error = bcm5974_start_traffic(dev); | |
760 | if (!error) | |
761 | dev->opened = 1; | |
762 | ||
763 | mutex_unlock(&dev->pm_mutex); | |
764 | ||
88da765f DT |
765 | if (error) |
766 | usb_autopm_put_interface(dev->intf); | |
767 | ||
f89bd95c HR |
768 | return error; |
769 | } | |
770 | ||
771 | static void bcm5974_close(struct input_dev *input) | |
772 | { | |
773 | struct bcm5974 *dev = input_get_drvdata(input); | |
774 | ||
775 | mutex_lock(&dev->pm_mutex); | |
776 | ||
777 | bcm5974_pause_traffic(dev); | |
778 | dev->opened = 0; | |
779 | ||
780 | mutex_unlock(&dev->pm_mutex); | |
88da765f DT |
781 | |
782 | usb_autopm_put_interface(dev->intf); | |
f89bd95c HR |
783 | } |
784 | ||
785 | static int bcm5974_suspend(struct usb_interface *iface, pm_message_t message) | |
786 | { | |
787 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
788 | ||
789 | mutex_lock(&dev->pm_mutex); | |
790 | ||
791 | if (dev->opened) | |
792 | bcm5974_pause_traffic(dev); | |
793 | ||
794 | mutex_unlock(&dev->pm_mutex); | |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
799 | static int bcm5974_resume(struct usb_interface *iface) | |
800 | { | |
801 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
802 | int error = 0; | |
803 | ||
804 | mutex_lock(&dev->pm_mutex); | |
805 | ||
806 | if (dev->opened) | |
807 | error = bcm5974_start_traffic(dev); | |
808 | ||
809 | mutex_unlock(&dev->pm_mutex); | |
810 | ||
811 | return error; | |
812 | } | |
813 | ||
814 | static int bcm5974_probe(struct usb_interface *iface, | |
815 | const struct usb_device_id *id) | |
816 | { | |
817 | struct usb_device *udev = interface_to_usbdev(iface); | |
818 | const struct bcm5974_config *cfg; | |
819 | struct bcm5974 *dev; | |
820 | struct input_dev *input_dev; | |
821 | int error = -ENOMEM; | |
822 | ||
823 | /* find the product index */ | |
824 | cfg = bcm5974_get_config(udev); | |
825 | ||
826 | /* allocate memory for our device state and initialize it */ | |
827 | dev = kzalloc(sizeof(struct bcm5974), GFP_KERNEL); | |
828 | input_dev = input_allocate_device(); | |
829 | if (!dev || !input_dev) { | |
6c1d1b24 | 830 | dev_err(&iface->dev, "out of memory\n"); |
f89bd95c HR |
831 | goto err_free_devs; |
832 | } | |
833 | ||
834 | dev->udev = udev; | |
88da765f | 835 | dev->intf = iface; |
f89bd95c HR |
836 | dev->input = input_dev; |
837 | dev->cfg = *cfg; | |
838 | mutex_init(&dev->pm_mutex); | |
839 | ||
840 | /* setup urbs */ | |
43f482b4 HR |
841 | if (cfg->tp_type == TYPE1) { |
842 | dev->bt_urb = usb_alloc_urb(0, GFP_KERNEL); | |
843 | if (!dev->bt_urb) | |
844 | goto err_free_devs; | |
845 | } | |
f89bd95c HR |
846 | |
847 | dev->tp_urb = usb_alloc_urb(0, GFP_KERNEL); | |
848 | if (!dev->tp_urb) | |
849 | goto err_free_bt_urb; | |
850 | ||
43f482b4 HR |
851 | if (dev->bt_urb) { |
852 | dev->bt_data = usb_alloc_coherent(dev->udev, | |
997ea58e DM |
853 | dev->cfg.bt_datalen, GFP_KERNEL, |
854 | &dev->bt_urb->transfer_dma); | |
43f482b4 HR |
855 | if (!dev->bt_data) |
856 | goto err_free_urb; | |
857 | } | |
f89bd95c | 858 | |
997ea58e DM |
859 | dev->tp_data = usb_alloc_coherent(dev->udev, |
860 | dev->cfg.tp_datalen, GFP_KERNEL, | |
861 | &dev->tp_urb->transfer_dma); | |
f89bd95c HR |
862 | if (!dev->tp_data) |
863 | goto err_free_bt_buffer; | |
864 | ||
43f482b4 HR |
865 | if (dev->bt_urb) |
866 | usb_fill_int_urb(dev->bt_urb, udev, | |
867 | usb_rcvintpipe(udev, cfg->bt_ep), | |
868 | dev->bt_data, dev->cfg.bt_datalen, | |
869 | bcm5974_irq_button, dev, 1); | |
f89bd95c HR |
870 | |
871 | usb_fill_int_urb(dev->tp_urb, udev, | |
872 | usb_rcvintpipe(udev, cfg->tp_ep), | |
873 | dev->tp_data, dev->cfg.tp_datalen, | |
874 | bcm5974_irq_trackpad, dev, 1); | |
875 | ||
876 | /* create bcm5974 device */ | |
877 | usb_make_path(udev, dev->phys, sizeof(dev->phys)); | |
878 | strlcat(dev->phys, "/input0", sizeof(dev->phys)); | |
879 | ||
880 | input_dev->name = "bcm5974"; | |
881 | input_dev->phys = dev->phys; | |
882 | usb_to_input_id(dev->udev, &input_dev->id); | |
158e9287 HR |
883 | /* report driver capabilities via the version field */ |
884 | input_dev->id.version = cfg->caps; | |
f89bd95c HR |
885 | input_dev->dev.parent = &iface->dev; |
886 | ||
887 | input_set_drvdata(input_dev, dev); | |
888 | ||
889 | input_dev->open = bcm5974_open; | |
890 | input_dev->close = bcm5974_close; | |
891 | ||
892 | setup_events_to_report(input_dev, cfg); | |
893 | ||
894 | error = input_register_device(dev->input); | |
895 | if (error) | |
896 | goto err_free_buffer; | |
897 | ||
898 | /* save our data pointer in this interface device */ | |
899 | usb_set_intfdata(iface, dev); | |
900 | ||
901 | return 0; | |
902 | ||
903 | err_free_buffer: | |
997ea58e | 904 | usb_free_coherent(dev->udev, dev->cfg.tp_datalen, |
f89bd95c HR |
905 | dev->tp_data, dev->tp_urb->transfer_dma); |
906 | err_free_bt_buffer: | |
43f482b4 HR |
907 | if (dev->bt_urb) |
908 | usb_free_coherent(dev->udev, dev->cfg.bt_datalen, | |
909 | dev->bt_data, dev->bt_urb->transfer_dma); | |
f89bd95c HR |
910 | err_free_urb: |
911 | usb_free_urb(dev->tp_urb); | |
912 | err_free_bt_urb: | |
913 | usb_free_urb(dev->bt_urb); | |
914 | err_free_devs: | |
915 | usb_set_intfdata(iface, NULL); | |
916 | input_free_device(input_dev); | |
917 | kfree(dev); | |
918 | return error; | |
919 | } | |
920 | ||
921 | static void bcm5974_disconnect(struct usb_interface *iface) | |
922 | { | |
923 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
924 | ||
925 | usb_set_intfdata(iface, NULL); | |
926 | ||
927 | input_unregister_device(dev->input); | |
997ea58e DM |
928 | usb_free_coherent(dev->udev, dev->cfg.tp_datalen, |
929 | dev->tp_data, dev->tp_urb->transfer_dma); | |
43f482b4 HR |
930 | if (dev->bt_urb) |
931 | usb_free_coherent(dev->udev, dev->cfg.bt_datalen, | |
932 | dev->bt_data, dev->bt_urb->transfer_dma); | |
f89bd95c HR |
933 | usb_free_urb(dev->tp_urb); |
934 | usb_free_urb(dev->bt_urb); | |
935 | kfree(dev); | |
936 | } | |
937 | ||
938 | static struct usb_driver bcm5974_driver = { | |
939 | .name = "bcm5974", | |
940 | .probe = bcm5974_probe, | |
941 | .disconnect = bcm5974_disconnect, | |
942 | .suspend = bcm5974_suspend, | |
943 | .resume = bcm5974_resume, | |
f89bd95c | 944 | .id_table = bcm5974_table, |
88da765f | 945 | .supports_autosuspend = 1, |
f89bd95c HR |
946 | }; |
947 | ||
08642e7c | 948 | module_usb_driver(bcm5974_driver); |