Commit | Line | Data |
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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> | |
f89bd95c HR |
37 | #include <linux/slab.h> |
38 | #include <linux/module.h> | |
39 | #include <linux/usb/input.h> | |
40 | #include <linux/hid.h> | |
41 | #include <linux/mutex.h> | |
51c80b74 | 42 | #include <linux/input/mt.h> |
f89bd95c HR |
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 | |
8d80da90 DH |
86 | /* MacbookPro10,2 (unibody, October 2012) */ |
87 | #define USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI 0x0259 | |
88 | #define USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO 0x025a | |
89 | #define USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS 0x025b | |
148c1c8a | 90 | /* MacbookAir6,2 (unibody, June 2013) */ |
8c89cc17 HR |
91 | #define USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI 0x0290 |
92 | #define USB_DEVICE_ID_APPLE_WELLSPRING8_ISO 0x0291 | |
93 | #define USB_DEVICE_ID_APPLE_WELLSPRING8_JIS 0x0292 | |
f89bd95c HR |
94 | |
95 | #define BCM5974_DEVICE(prod) { \ | |
96 | .match_flags = (USB_DEVICE_ID_MATCH_DEVICE | \ | |
97 | USB_DEVICE_ID_MATCH_INT_CLASS | \ | |
98 | USB_DEVICE_ID_MATCH_INT_PROTOCOL), \ | |
99 | .idVendor = USB_VENDOR_ID_APPLE, \ | |
100 | .idProduct = (prod), \ | |
101 | .bInterfaceClass = USB_INTERFACE_CLASS_HID, \ | |
102 | .bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE \ | |
103 | } | |
104 | ||
105 | /* table of devices that work with this driver */ | |
158e0fb6 | 106 | static const struct usb_device_id bcm5974_table[] = { |
f89bd95c HR |
107 | /* MacbookAir1.1 */ |
108 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ANSI), | |
109 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ISO), | |
110 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_JIS), | |
111 | /* MacbookProPenryn */ | |
112 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI), | |
113 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ISO), | |
114 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_JIS), | |
158e9287 HR |
115 | /* Macbook5,1 */ |
116 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI), | |
117 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ISO), | |
118 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_JIS), | |
6021afcf EH |
119 | /* MacbookAir3,2 */ |
120 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI), | |
121 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ISO), | |
122 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_JIS), | |
123 | /* MacbookAir3,1 */ | |
124 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI), | |
125 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO), | |
126 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS), | |
47340bd9 AB |
127 | /* MacbookPro8 */ |
128 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI), | |
129 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO), | |
130 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS), | |
1c601bea PAVM |
131 | /* MacbookAir4,1 */ |
132 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI), | |
133 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO), | |
134 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS), | |
db0b34b0 JD |
135 | /* MacbookAir4,2 */ |
136 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI), | |
137 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ISO), | |
138 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_JIS), | |
c331eb58 AD |
139 | /* MacbookPro8,2 */ |
140 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI), | |
141 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO), | |
142 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS), | |
3dde22a9 HR |
143 | /* MacbookPro10,1 */ |
144 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI), | |
145 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ISO), | |
146 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_JIS), | |
8d80da90 DH |
147 | /* MacbookPro10,2 */ |
148 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI), | |
149 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO), | |
150 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS), | |
148c1c8a DT |
151 | /* MacbookAir6,2 */ |
152 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI), | |
153 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING8_ISO), | |
154 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING8_JIS), | |
f89bd95c HR |
155 | /* Terminating entry */ |
156 | {} | |
157 | }; | |
158 | MODULE_DEVICE_TABLE(usb, bcm5974_table); | |
159 | ||
160 | MODULE_AUTHOR("Henrik Rydberg"); | |
161 | MODULE_DESCRIPTION("Apple USB BCM5974 multitouch driver"); | |
162 | MODULE_LICENSE("GPL"); | |
163 | ||
164 | #define dprintk(level, format, a...)\ | |
165 | { if (debug >= level) printk(KERN_DEBUG format, ##a); } | |
166 | ||
167 | static int debug = 1; | |
168 | module_param(debug, int, 0644); | |
169 | MODULE_PARM_DESC(debug, "Activate debugging output"); | |
170 | ||
171 | /* button data structure */ | |
172 | struct bt_data { | |
173 | u8 unknown1; /* constant */ | |
174 | u8 button; /* left button */ | |
175 | u8 rel_x; /* relative x coordinate */ | |
176 | u8 rel_y; /* relative y coordinate */ | |
177 | }; | |
178 | ||
9894cf0f HR |
179 | /* trackpad header types */ |
180 | enum tp_type { | |
158e9287 | 181 | TYPE1, /* plain trackpad */ |
148c1c8a DT |
182 | TYPE2, /* button integrated in trackpad */ |
183 | TYPE3 /* additional header fields since June 2013 */ | |
f89bd95c HR |
184 | }; |
185 | ||
9894cf0f HR |
186 | /* trackpad finger data offsets, le16-aligned */ |
187 | #define FINGER_TYPE1 (13 * sizeof(__le16)) | |
158e9287 | 188 | #define FINGER_TYPE2 (15 * sizeof(__le16)) |
148c1c8a | 189 | #define FINGER_TYPE3 (19 * sizeof(__le16)) |
158e9287 HR |
190 | |
191 | /* trackpad button data offsets */ | |
192 | #define BUTTON_TYPE2 15 | |
148c1c8a | 193 | #define BUTTON_TYPE3 23 |
158e9287 HR |
194 | |
195 | /* list of device capability bits */ | |
196 | #define HAS_INTEGRATED_BUTTON 1 | |
9894cf0f HR |
197 | |
198 | /* trackpad finger structure, le16-aligned */ | |
f89bd95c | 199 | struct tp_finger { |
75e21e3f | 200 | __le16 origin; /* zero when switching track finger */ |
f89bd95c HR |
201 | __le16 abs_x; /* absolute x coodinate */ |
202 | __le16 abs_y; /* absolute y coodinate */ | |
203 | __le16 rel_x; /* relative x coodinate */ | |
204 | __le16 rel_y; /* relative y coodinate */ | |
f17953ab HR |
205 | __le16 tool_major; /* tool area, major axis */ |
206 | __le16 tool_minor; /* tool area, minor axis */ | |
f89bd95c | 207 | __le16 orientation; /* 16384 when point, else 15 bit angle */ |
f17953ab HR |
208 | __le16 touch_major; /* touch area, major axis */ |
209 | __le16 touch_minor; /* touch area, minor axis */ | |
f89bd95c HR |
210 | __le16 unused[3]; /* zeros */ |
211 | __le16 multi; /* one finger: varies, more fingers: constant */ | |
9894cf0f | 212 | } __attribute__((packed,aligned(2))); |
f89bd95c | 213 | |
9894cf0f | 214 | /* trackpad finger data size, empirically at least ten fingers */ |
f17953ab | 215 | #define MAX_FINGERS 16 |
9894cf0f | 216 | #define SIZEOF_FINGER sizeof(struct tp_finger) |
f17953ab | 217 | #define SIZEOF_ALL_FINGERS (MAX_FINGERS * SIZEOF_FINGER) |
6f2701b7 | 218 | #define MAX_FINGER_ORIENTATION 16384 |
f89bd95c HR |
219 | |
220 | /* device-specific parameters */ | |
221 | struct bcm5974_param { | |
0e726966 HR |
222 | int snratio; /* signal-to-noise ratio */ |
223 | int min; /* device minimum reading */ | |
224 | int max; /* device maximum reading */ | |
f89bd95c HR |
225 | }; |
226 | ||
227 | /* device-specific configuration */ | |
228 | struct bcm5974_config { | |
229 | int ansi, iso, jis; /* the product id of this device */ | |
158e9287 | 230 | int caps; /* device capability bitmask */ |
f89bd95c HR |
231 | int bt_ep; /* the endpoint of the button interface */ |
232 | int bt_datalen; /* data length of the button interface */ | |
233 | int tp_ep; /* the endpoint of the trackpad interface */ | |
9894cf0f HR |
234 | enum tp_type tp_type; /* type of trackpad interface */ |
235 | int tp_offset; /* offset to trackpad finger data */ | |
f89bd95c HR |
236 | int tp_datalen; /* data length of the trackpad interface */ |
237 | struct bcm5974_param p; /* finger pressure limits */ | |
238 | struct bcm5974_param w; /* finger width limits */ | |
239 | struct bcm5974_param x; /* horizontal limits */ | |
240 | struct bcm5974_param y; /* vertical limits */ | |
0e726966 | 241 | struct bcm5974_param o; /* orientation limits */ |
f89bd95c HR |
242 | }; |
243 | ||
244 | /* logical device structure */ | |
245 | struct bcm5974 { | |
246 | char phys[64]; | |
247 | struct usb_device *udev; /* usb device */ | |
88da765f | 248 | struct usb_interface *intf; /* our interface */ |
f89bd95c HR |
249 | struct input_dev *input; /* input dev */ |
250 | struct bcm5974_config cfg; /* device configuration */ | |
251 | struct mutex pm_mutex; /* serialize access to open/suspend */ | |
252 | int opened; /* 1: opened, 0: closed */ | |
253 | struct urb *bt_urb; /* button usb request block */ | |
254 | struct bt_data *bt_data; /* button transferred data */ | |
255 | struct urb *tp_urb; /* trackpad usb request block */ | |
9894cf0f | 256 | u8 *tp_data; /* trackpad transferred data */ |
51c80b74 HR |
257 | const struct tp_finger *index[MAX_FINGERS]; /* finger index data */ |
258 | struct input_mt_pos pos[MAX_FINGERS]; /* position array */ | |
259 | int slots[MAX_FINGERS]; /* slot assignments */ | |
f89bd95c HR |
260 | }; |
261 | ||
f89bd95c HR |
262 | /* logical signal quality */ |
263 | #define SN_PRESSURE 45 /* pressure signal-to-noise ratio */ | |
51c80b74 | 264 | #define SN_WIDTH 25 /* width signal-to-noise ratio */ |
f89bd95c | 265 | #define SN_COORD 250 /* coordinate signal-to-noise ratio */ |
0e726966 | 266 | #define SN_ORIENT 10 /* orientation signal-to-noise ratio */ |
75e21e3f | 267 | |
f89bd95c HR |
268 | /* device constants */ |
269 | static const struct bcm5974_config bcm5974_config_table[] = { | |
270 | { | |
271 | USB_DEVICE_ID_APPLE_WELLSPRING_ANSI, | |
272 | USB_DEVICE_ID_APPLE_WELLSPRING_ISO, | |
273 | USB_DEVICE_ID_APPLE_WELLSPRING_JIS, | |
158e9287 | 274 | 0, |
f89bd95c | 275 | 0x84, sizeof(struct bt_data), |
9894cf0f | 276 | 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS, |
0e726966 HR |
277 | { SN_PRESSURE, 0, 256 }, |
278 | { SN_WIDTH, 0, 2048 }, | |
279 | { SN_COORD, -4824, 5342 }, | |
280 | { SN_COORD, -172, 5820 }, | |
281 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
f89bd95c HR |
282 | }, |
283 | { | |
284 | USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI, | |
285 | USB_DEVICE_ID_APPLE_WELLSPRING2_ISO, | |
286 | USB_DEVICE_ID_APPLE_WELLSPRING2_JIS, | |
158e9287 | 287 | 0, |
f89bd95c | 288 | 0x84, sizeof(struct bt_data), |
9894cf0f | 289 | 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS, |
0e726966 HR |
290 | { SN_PRESSURE, 0, 256 }, |
291 | { SN_WIDTH, 0, 2048 }, | |
292 | { SN_COORD, -4824, 4824 }, | |
293 | { SN_COORD, -172, 4290 }, | |
294 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
f89bd95c | 295 | }, |
158e9287 HR |
296 | { |
297 | USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI, | |
298 | USB_DEVICE_ID_APPLE_WELLSPRING3_ISO, | |
299 | USB_DEVICE_ID_APPLE_WELLSPRING3_JIS, | |
300 | HAS_INTEGRATED_BUTTON, | |
301 | 0x84, sizeof(struct bt_data), | |
302 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
303 | { SN_PRESSURE, 0, 300 }, |
304 | { SN_WIDTH, 0, 2048 }, | |
305 | { SN_COORD, -4460, 5166 }, | |
306 | { SN_COORD, -75, 6700 }, | |
307 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
158e9287 | 308 | }, |
6021afcf EH |
309 | { |
310 | USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI, | |
311 | USB_DEVICE_ID_APPLE_WELLSPRING4_ISO, | |
312 | USB_DEVICE_ID_APPLE_WELLSPRING4_JIS, | |
313 | HAS_INTEGRATED_BUTTON, | |
314 | 0x84, sizeof(struct bt_data), | |
315 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
316 | { SN_PRESSURE, 0, 300 }, |
317 | { SN_WIDTH, 0, 2048 }, | |
318 | { SN_COORD, -4620, 5140 }, | |
319 | { SN_COORD, -150, 6600 }, | |
320 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
6021afcf EH |
321 | }, |
322 | { | |
323 | USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI, | |
324 | USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO, | |
325 | USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS, | |
326 | HAS_INTEGRATED_BUTTON, | |
327 | 0x84, sizeof(struct bt_data), | |
328 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
329 | { SN_PRESSURE, 0, 300 }, |
330 | { SN_WIDTH, 0, 2048 }, | |
331 | { SN_COORD, -4616, 5112 }, | |
332 | { SN_COORD, -142, 5234 }, | |
333 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
6021afcf | 334 | }, |
47340bd9 AB |
335 | { |
336 | USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI, | |
337 | USB_DEVICE_ID_APPLE_WELLSPRING5_ISO, | |
338 | USB_DEVICE_ID_APPLE_WELLSPRING5_JIS, | |
339 | HAS_INTEGRATED_BUTTON, | |
340 | 0x84, sizeof(struct bt_data), | |
341 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
342 | { SN_PRESSURE, 0, 300 }, |
343 | { SN_WIDTH, 0, 2048 }, | |
344 | { SN_COORD, -4415, 5050 }, | |
345 | { SN_COORD, -55, 6680 }, | |
346 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
47340bd9 | 347 | }, |
db0b34b0 JD |
348 | { |
349 | USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI, | |
350 | USB_DEVICE_ID_APPLE_WELLSPRING6_ISO, | |
351 | USB_DEVICE_ID_APPLE_WELLSPRING6_JIS, | |
352 | HAS_INTEGRATED_BUTTON, | |
353 | 0x84, sizeof(struct bt_data), | |
354 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
355 | { SN_PRESSURE, 0, 300 }, |
356 | { SN_WIDTH, 0, 2048 }, | |
357 | { SN_COORD, -4620, 5140 }, | |
358 | { SN_COORD, -150, 6600 }, | |
359 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
db0b34b0 | 360 | }, |
c331eb58 AD |
361 | { |
362 | USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI, | |
363 | USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO, | |
364 | USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS, | |
365 | HAS_INTEGRATED_BUTTON, | |
366 | 0x84, sizeof(struct bt_data), | |
367 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
368 | { SN_PRESSURE, 0, 300 }, |
369 | { SN_WIDTH, 0, 2048 }, | |
370 | { SN_COORD, -4750, 5280 }, | |
371 | { SN_COORD, -150, 6730 }, | |
372 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
c331eb58 | 373 | }, |
1c601bea PAVM |
374 | { |
375 | USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI, | |
376 | USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO, | |
377 | USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS, | |
378 | HAS_INTEGRATED_BUTTON, | |
379 | 0x84, sizeof(struct bt_data), | |
380 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
381 | { SN_PRESSURE, 0, 300 }, |
382 | { SN_WIDTH, 0, 2048 }, | |
383 | { SN_COORD, -4620, 5140 }, | |
384 | { SN_COORD, -150, 6600 }, | |
385 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
1c601bea | 386 | }, |
3dde22a9 HR |
387 | { |
388 | USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI, | |
389 | USB_DEVICE_ID_APPLE_WELLSPRING7_ISO, | |
390 | USB_DEVICE_ID_APPLE_WELLSPRING7_JIS, | |
391 | HAS_INTEGRATED_BUTTON, | |
392 | 0x84, sizeof(struct bt_data), | |
393 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
0e726966 HR |
394 | { SN_PRESSURE, 0, 300 }, |
395 | { SN_WIDTH, 0, 2048 }, | |
396 | { SN_COORD, -4750, 5280 }, | |
397 | { SN_COORD, -150, 6730 }, | |
398 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
3dde22a9 | 399 | }, |
8d80da90 DH |
400 | { |
401 | USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI, | |
402 | USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO, | |
403 | USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS, | |
404 | HAS_INTEGRATED_BUTTON, | |
405 | 0x84, sizeof(struct bt_data), | |
406 | 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS, | |
407 | { SN_PRESSURE, 0, 300 }, | |
408 | { SN_WIDTH, 0, 2048 }, | |
409 | { SN_COORD, -4750, 5280 }, | |
410 | { SN_COORD, -150, 6730 }, | |
411 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
412 | }, | |
148c1c8a DT |
413 | { |
414 | USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI, | |
415 | USB_DEVICE_ID_APPLE_WELLSPRING8_ISO, | |
416 | USB_DEVICE_ID_APPLE_WELLSPRING8_JIS, | |
417 | HAS_INTEGRATED_BUTTON, | |
418 | 0, sizeof(struct bt_data), | |
419 | 0x83, TYPE3, FINGER_TYPE3, FINGER_TYPE3 + SIZEOF_ALL_FINGERS, | |
420 | { SN_PRESSURE, 0, 300 }, | |
421 | { SN_WIDTH, 0, 2048 }, | |
422 | { SN_COORD, -4620, 5140 }, | |
423 | { SN_COORD, -150, 6600 }, | |
424 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
425 | }, | |
f89bd95c HR |
426 | {} |
427 | }; | |
428 | ||
429 | /* return the device-specific configuration by device */ | |
430 | static const struct bcm5974_config *bcm5974_get_config(struct usb_device *udev) | |
431 | { | |
432 | u16 id = le16_to_cpu(udev->descriptor.idProduct); | |
433 | const struct bcm5974_config *cfg; | |
434 | ||
435 | for (cfg = bcm5974_config_table; cfg->ansi; ++cfg) | |
436 | if (cfg->ansi == id || cfg->iso == id || cfg->jis == id) | |
437 | return cfg; | |
438 | ||
439 | return bcm5974_config_table; | |
440 | } | |
441 | ||
442 | /* convert 16-bit little endian to signed integer */ | |
443 | static inline int raw2int(__le16 x) | |
444 | { | |
445 | return (signed short)le16_to_cpu(x); | |
446 | } | |
447 | ||
0e726966 HR |
448 | static void set_abs(struct input_dev *input, unsigned int code, |
449 | const struct bcm5974_param *p) | |
f89bd95c | 450 | { |
0e726966 HR |
451 | int fuzz = p->snratio ? (p->max - p->min) / p->snratio : 0; |
452 | input_set_abs_params(input, code, p->min, p->max, fuzz, 0); | |
f89bd95c HR |
453 | } |
454 | ||
455 | /* setup which logical events to report */ | |
456 | static void setup_events_to_report(struct input_dev *input_dev, | |
457 | const struct bcm5974_config *cfg) | |
458 | { | |
459 | __set_bit(EV_ABS, input_dev->evbit); | |
460 | ||
0e726966 HR |
461 | /* for synaptics only */ |
462 | input_set_abs_params(input_dev, ABS_PRESSURE, 0, 256, 5, 0); | |
463 | input_set_abs_params(input_dev, ABS_TOOL_WIDTH, 0, 16, 0, 0); | |
464 | ||
6f2701b7 | 465 | /* finger touch area */ |
0e726966 HR |
466 | set_abs(input_dev, ABS_MT_TOUCH_MAJOR, &cfg->w); |
467 | set_abs(input_dev, ABS_MT_TOUCH_MINOR, &cfg->w); | |
6f2701b7 | 468 | /* finger approach area */ |
0e726966 HR |
469 | set_abs(input_dev, ABS_MT_WIDTH_MAJOR, &cfg->w); |
470 | set_abs(input_dev, ABS_MT_WIDTH_MINOR, &cfg->w); | |
6f2701b7 | 471 | /* finger orientation */ |
0e726966 | 472 | set_abs(input_dev, ABS_MT_ORIENTATION, &cfg->o); |
6f2701b7 | 473 | /* finger position */ |
0e726966 HR |
474 | set_abs(input_dev, ABS_MT_POSITION_X, &cfg->x); |
475 | set_abs(input_dev, ABS_MT_POSITION_Y, &cfg->y); | |
6f2701b7 | 476 | |
f89bd95c | 477 | __set_bit(EV_KEY, input_dev->evbit); |
f89bd95c | 478 | __set_bit(BTN_LEFT, input_dev->keybit); |
c13aea03 | 479 | |
52965cc0 JP |
480 | if (cfg->caps & HAS_INTEGRATED_BUTTON) |
481 | __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit); | |
482 | ||
51c80b74 HR |
483 | input_mt_init_slots(input_dev, MAX_FINGERS, |
484 | INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK); | |
f89bd95c HR |
485 | } |
486 | ||
487 | /* report button data as logical button state */ | |
488 | static int report_bt_state(struct bcm5974 *dev, int size) | |
489 | { | |
490 | if (size != sizeof(struct bt_data)) | |
491 | return -EIO; | |
492 | ||
53402193 HR |
493 | dprintk(7, |
494 | "bcm5974: button data: %x %x %x %x\n", | |
495 | dev->bt_data->unknown1, dev->bt_data->button, | |
496 | dev->bt_data->rel_x, dev->bt_data->rel_y); | |
497 | ||
f89bd95c HR |
498 | input_report_key(dev->input, BTN_LEFT, dev->bt_data->button); |
499 | input_sync(dev->input); | |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
51c80b74 HR |
504 | static void report_finger_data(struct input_dev *input, int slot, |
505 | const struct input_mt_pos *pos, | |
6f2701b7 HR |
506 | const struct tp_finger *f) |
507 | { | |
51c80b74 HR |
508 | input_mt_slot(input, slot); |
509 | input_mt_report_slot_state(input, MT_TOOL_FINGER, true); | |
510 | ||
57157bec | 511 | input_report_abs(input, ABS_MT_TOUCH_MAJOR, |
f17953ab | 512 | raw2int(f->touch_major) << 1); |
57157bec | 513 | input_report_abs(input, ABS_MT_TOUCH_MINOR, |
f17953ab | 514 | raw2int(f->touch_minor) << 1); |
57157bec | 515 | input_report_abs(input, ABS_MT_WIDTH_MAJOR, |
f17953ab | 516 | raw2int(f->tool_major) << 1); |
57157bec | 517 | input_report_abs(input, ABS_MT_WIDTH_MINOR, |
f17953ab | 518 | raw2int(f->tool_minor) << 1); |
6f2701b7 HR |
519 | input_report_abs(input, ABS_MT_ORIENTATION, |
520 | MAX_FINGER_ORIENTATION - raw2int(f->orientation)); | |
51c80b74 HR |
521 | input_report_abs(input, ABS_MT_POSITION_X, pos->x); |
522 | input_report_abs(input, ABS_MT_POSITION_Y, pos->y); | |
6f2701b7 HR |
523 | } |
524 | ||
0e726966 HR |
525 | static void report_synaptics_data(struct input_dev *input, |
526 | const struct bcm5974_config *cfg, | |
527 | const struct tp_finger *f, int raw_n) | |
528 | { | |
529 | int abs_p = 0, abs_w = 0; | |
530 | ||
531 | if (raw_n) { | |
532 | int p = raw2int(f->touch_major); | |
533 | int w = raw2int(f->tool_major); | |
534 | if (p > 0 && raw2int(f->origin)) { | |
535 | abs_p = clamp_val(256 * p / cfg->p.max, 0, 255); | |
536 | abs_w = clamp_val(16 * w / cfg->w.max, 0, 15); | |
537 | } | |
538 | } | |
539 | ||
540 | input_report_abs(input, ABS_PRESSURE, abs_p); | |
541 | input_report_abs(input, ABS_TOOL_WIDTH, abs_w); | |
542 | } | |
543 | ||
f89bd95c HR |
544 | /* report trackpad data as logical trackpad state */ |
545 | static int report_tp_state(struct bcm5974 *dev, int size) | |
546 | { | |
547 | const struct bcm5974_config *c = &dev->cfg; | |
9894cf0f | 548 | const struct tp_finger *f; |
f89bd95c | 549 | struct input_dev *input = dev->input; |
51c80b74 | 550 | int raw_n, i, n = 0; |
f89bd95c | 551 | |
9894cf0f | 552 | if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0) |
f89bd95c HR |
553 | return -EIO; |
554 | ||
9894cf0f HR |
555 | /* finger data, le16-aligned */ |
556 | f = (const struct tp_finger *)(dev->tp_data + c->tp_offset); | |
557 | raw_n = (size - c->tp_offset) / SIZEOF_FINGER; | |
558 | ||
51c80b74 HR |
559 | for (i = 0; i < raw_n; i++) { |
560 | if (raw2int(f[i].touch_major) == 0) | |
561 | continue; | |
562 | dev->pos[n].x = raw2int(f[i].abs_x); | |
563 | dev->pos[n].y = c->y.min + c->y.max - raw2int(f[i].abs_y); | |
564 | dev->index[n++] = &f[i]; | |
f89bd95c HR |
565 | } |
566 | ||
51c80b74 | 567 | input_mt_assign_slots(input, dev->slots, dev->pos, n); |
75e21e3f | 568 | |
51c80b74 HR |
569 | for (i = 0; i < n; i++) |
570 | report_finger_data(input, dev->slots[i], | |
571 | &dev->pos[i], dev->index[i]); | |
f89bd95c | 572 | |
51c80b74 HR |
573 | input_mt_sync_frame(input); |
574 | ||
575 | report_synaptics_data(input, c, f, raw_n); | |
f89bd95c | 576 | |
158e9287 | 577 | /* type 2 reports button events via ibt only */ |
0e726966 HR |
578 | if (c->tp_type == TYPE2) { |
579 | int ibt = raw2int(dev->tp_data[BUTTON_TYPE2]); | |
158e9287 | 580 | input_report_key(input, BTN_LEFT, ibt); |
0e726966 | 581 | } |
158e9287 | 582 | |
148c1c8a DT |
583 | if (c->tp_type == TYPE3) |
584 | input_report_key(input, BTN_LEFT, dev->tp_data[BUTTON_TYPE3]); | |
585 | ||
f89bd95c HR |
586 | input_sync(input); |
587 | ||
588 | return 0; | |
589 | } | |
590 | ||
591 | /* Wellspring initialization constants */ | |
592 | #define BCM5974_WELLSPRING_MODE_READ_REQUEST_ID 1 | |
593 | #define BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID 9 | |
594 | #define BCM5974_WELLSPRING_MODE_REQUEST_VALUE 0x300 | |
595 | #define BCM5974_WELLSPRING_MODE_REQUEST_INDEX 0 | |
596 | #define BCM5974_WELLSPRING_MODE_VENDOR_VALUE 0x01 | |
cd72ad3f | 597 | #define BCM5974_WELLSPRING_MODE_NORMAL_VALUE 0x08 |
f89bd95c | 598 | |
cd72ad3f | 599 | static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on) |
f89bd95c | 600 | { |
f89bd95c | 601 | int retval = 0, size; |
148c1c8a DT |
602 | char *data; |
603 | ||
604 | /* Type 3 does not require a mode switch */ | |
605 | if (dev->cfg.tp_type == TYPE3) | |
606 | return 0; | |
f89bd95c | 607 | |
148c1c8a | 608 | data = kmalloc(8, GFP_KERNEL); |
f89bd95c | 609 | if (!data) { |
ab943ca8 | 610 | dev_err(&dev->intf->dev, "out of memory\n"); |
f89bd95c HR |
611 | retval = -ENOMEM; |
612 | goto out; | |
613 | } | |
614 | ||
615 | /* read configuration */ | |
616 | size = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), | |
617 | BCM5974_WELLSPRING_MODE_READ_REQUEST_ID, | |
618 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
619 | BCM5974_WELLSPRING_MODE_REQUEST_VALUE, | |
620 | BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000); | |
621 | ||
622 | if (size != 8) { | |
ab943ca8 | 623 | dev_err(&dev->intf->dev, "could not read from device\n"); |
f89bd95c HR |
624 | retval = -EIO; |
625 | goto out; | |
626 | } | |
627 | ||
628 | /* apply the mode switch */ | |
cd72ad3f HR |
629 | data[0] = on ? |
630 | BCM5974_WELLSPRING_MODE_VENDOR_VALUE : | |
631 | BCM5974_WELLSPRING_MODE_NORMAL_VALUE; | |
f89bd95c HR |
632 | |
633 | /* write configuration */ | |
634 | size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), | |
635 | BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID, | |
636 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
637 | BCM5974_WELLSPRING_MODE_REQUEST_VALUE, | |
638 | BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000); | |
639 | ||
640 | if (size != 8) { | |
ab943ca8 | 641 | dev_err(&dev->intf->dev, "could not write to device\n"); |
f89bd95c HR |
642 | retval = -EIO; |
643 | goto out; | |
644 | } | |
645 | ||
cd72ad3f HR |
646 | dprintk(2, "bcm5974: switched to %s mode.\n", |
647 | on ? "wellspring" : "normal"); | |
f89bd95c HR |
648 | |
649 | out: | |
650 | kfree(data); | |
651 | return retval; | |
652 | } | |
653 | ||
654 | static void bcm5974_irq_button(struct urb *urb) | |
655 | { | |
656 | struct bcm5974 *dev = urb->context; | |
ab943ca8 | 657 | struct usb_interface *intf = dev->intf; |
f89bd95c HR |
658 | int error; |
659 | ||
660 | switch (urb->status) { | |
661 | case 0: | |
662 | break; | |
663 | case -EOVERFLOW: | |
664 | case -ECONNRESET: | |
665 | case -ENOENT: | |
666 | case -ESHUTDOWN: | |
ab943ca8 | 667 | dev_dbg(&intf->dev, "button urb shutting down: %d\n", |
bd028769 | 668 | urb->status); |
f89bd95c HR |
669 | return; |
670 | default: | |
ab943ca8 | 671 | dev_dbg(&intf->dev, "button urb status: %d\n", urb->status); |
f89bd95c HR |
672 | goto exit; |
673 | } | |
674 | ||
675 | if (report_bt_state(dev, dev->bt_urb->actual_length)) | |
676 | dprintk(1, "bcm5974: bad button package, length: %d\n", | |
677 | dev->bt_urb->actual_length); | |
678 | ||
679 | exit: | |
680 | error = usb_submit_urb(dev->bt_urb, GFP_ATOMIC); | |
681 | if (error) | |
ab943ca8 | 682 | dev_err(&intf->dev, "button urb failed: %d\n", error); |
f89bd95c HR |
683 | } |
684 | ||
685 | static void bcm5974_irq_trackpad(struct urb *urb) | |
686 | { | |
687 | struct bcm5974 *dev = urb->context; | |
ab943ca8 | 688 | struct usb_interface *intf = dev->intf; |
f89bd95c HR |
689 | int error; |
690 | ||
691 | switch (urb->status) { | |
692 | case 0: | |
693 | break; | |
694 | case -EOVERFLOW: | |
695 | case -ECONNRESET: | |
696 | case -ENOENT: | |
697 | case -ESHUTDOWN: | |
ab943ca8 | 698 | dev_dbg(&intf->dev, "trackpad urb shutting down: %d\n", |
bd028769 | 699 | urb->status); |
f89bd95c HR |
700 | return; |
701 | default: | |
ab943ca8 | 702 | dev_dbg(&intf->dev, "trackpad urb status: %d\n", urb->status); |
f89bd95c HR |
703 | goto exit; |
704 | } | |
705 | ||
706 | /* control response ignored */ | |
707 | if (dev->tp_urb->actual_length == 2) | |
708 | goto exit; | |
709 | ||
710 | if (report_tp_state(dev, dev->tp_urb->actual_length)) | |
711 | dprintk(1, "bcm5974: bad trackpad package, length: %d\n", | |
712 | dev->tp_urb->actual_length); | |
713 | ||
714 | exit: | |
715 | error = usb_submit_urb(dev->tp_urb, GFP_ATOMIC); | |
716 | if (error) | |
ab943ca8 | 717 | dev_err(&intf->dev, "trackpad urb failed: %d\n", error); |
f89bd95c HR |
718 | } |
719 | ||
720 | /* | |
721 | * The Wellspring trackpad, like many recent Apple trackpads, share | |
722 | * the usb device with the keyboard. Since keyboards are usually | |
723 | * handled by the HID system, the device ends up being handled by two | |
724 | * modules. Setting up the device therefore becomes slightly | |
725 | * complicated. To enable multitouch features, a mode switch is | |
726 | * required, which is usually applied via the control interface of the | |
727 | * device. It can be argued where this switch should take place. In | |
728 | * some drivers, like appletouch, the switch is made during | |
729 | * probe. However, the hid module may also alter the state of the | |
730 | * device, resulting in trackpad malfunction under certain | |
731 | * circumstances. To get around this problem, there is at least one | |
732 | * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to | |
25985edc | 733 | * receive a reset_resume request rather than the normal resume. |
f89bd95c HR |
734 | * Since the implementation of reset_resume is equal to mode switch |
735 | * plus start_traffic, it seems easier to always do the switch when | |
736 | * starting traffic on the device. | |
737 | */ | |
738 | static int bcm5974_start_traffic(struct bcm5974 *dev) | |
739 | { | |
1719ec41 LJ |
740 | int error; |
741 | ||
742 | error = bcm5974_wellspring_mode(dev, true); | |
743 | if (error) { | |
f89bd95c | 744 | dprintk(1, "bcm5974: mode switch failed\n"); |
1719ec41 | 745 | goto err_out; |
f89bd95c HR |
746 | } |
747 | ||
43f482b4 HR |
748 | if (dev->bt_urb) { |
749 | error = usb_submit_urb(dev->bt_urb, GFP_KERNEL); | |
750 | if (error) | |
751 | goto err_reset_mode; | |
752 | } | |
f89bd95c | 753 | |
1719ec41 LJ |
754 | error = usb_submit_urb(dev->tp_urb, GFP_KERNEL); |
755 | if (error) | |
f89bd95c HR |
756 | goto err_kill_bt; |
757 | ||
758 | return 0; | |
759 | ||
760 | err_kill_bt: | |
761 | usb_kill_urb(dev->bt_urb); | |
1719ec41 LJ |
762 | err_reset_mode: |
763 | bcm5974_wellspring_mode(dev, false); | |
764 | err_out: | |
765 | return error; | |
f89bd95c HR |
766 | } |
767 | ||
768 | static void bcm5974_pause_traffic(struct bcm5974 *dev) | |
769 | { | |
770 | usb_kill_urb(dev->tp_urb); | |
771 | usb_kill_urb(dev->bt_urb); | |
cd72ad3f | 772 | bcm5974_wellspring_mode(dev, false); |
f89bd95c HR |
773 | } |
774 | ||
775 | /* | |
776 | * The code below implements open/close and manual suspend/resume. | |
777 | * All functions may be called in random order. | |
778 | * | |
779 | * Opening a suspended device fails with EACCES - permission denied. | |
780 | * | |
781 | * Failing a resume leaves the device resumed but closed. | |
782 | */ | |
783 | static int bcm5974_open(struct input_dev *input) | |
784 | { | |
785 | struct bcm5974 *dev = input_get_drvdata(input); | |
786 | int error; | |
787 | ||
88da765f DT |
788 | error = usb_autopm_get_interface(dev->intf); |
789 | if (error) | |
790 | return error; | |
791 | ||
f89bd95c HR |
792 | mutex_lock(&dev->pm_mutex); |
793 | ||
794 | error = bcm5974_start_traffic(dev); | |
795 | if (!error) | |
796 | dev->opened = 1; | |
797 | ||
798 | mutex_unlock(&dev->pm_mutex); | |
799 | ||
88da765f DT |
800 | if (error) |
801 | usb_autopm_put_interface(dev->intf); | |
802 | ||
f89bd95c HR |
803 | return error; |
804 | } | |
805 | ||
806 | static void bcm5974_close(struct input_dev *input) | |
807 | { | |
808 | struct bcm5974 *dev = input_get_drvdata(input); | |
809 | ||
810 | mutex_lock(&dev->pm_mutex); | |
811 | ||
812 | bcm5974_pause_traffic(dev); | |
813 | dev->opened = 0; | |
814 | ||
815 | mutex_unlock(&dev->pm_mutex); | |
88da765f DT |
816 | |
817 | usb_autopm_put_interface(dev->intf); | |
f89bd95c HR |
818 | } |
819 | ||
820 | static int bcm5974_suspend(struct usb_interface *iface, pm_message_t message) | |
821 | { | |
822 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
823 | ||
824 | mutex_lock(&dev->pm_mutex); | |
825 | ||
826 | if (dev->opened) | |
827 | bcm5974_pause_traffic(dev); | |
828 | ||
829 | mutex_unlock(&dev->pm_mutex); | |
830 | ||
831 | return 0; | |
832 | } | |
833 | ||
834 | static int bcm5974_resume(struct usb_interface *iface) | |
835 | { | |
836 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
837 | int error = 0; | |
838 | ||
839 | mutex_lock(&dev->pm_mutex); | |
840 | ||
841 | if (dev->opened) | |
842 | error = bcm5974_start_traffic(dev); | |
843 | ||
844 | mutex_unlock(&dev->pm_mutex); | |
845 | ||
846 | return error; | |
847 | } | |
848 | ||
849 | static int bcm5974_probe(struct usb_interface *iface, | |
850 | const struct usb_device_id *id) | |
851 | { | |
852 | struct usb_device *udev = interface_to_usbdev(iface); | |
853 | const struct bcm5974_config *cfg; | |
854 | struct bcm5974 *dev; | |
855 | struct input_dev *input_dev; | |
856 | int error = -ENOMEM; | |
857 | ||
858 | /* find the product index */ | |
859 | cfg = bcm5974_get_config(udev); | |
860 | ||
861 | /* allocate memory for our device state and initialize it */ | |
862 | dev = kzalloc(sizeof(struct bcm5974), GFP_KERNEL); | |
863 | input_dev = input_allocate_device(); | |
864 | if (!dev || !input_dev) { | |
6c1d1b24 | 865 | dev_err(&iface->dev, "out of memory\n"); |
f89bd95c HR |
866 | goto err_free_devs; |
867 | } | |
868 | ||
869 | dev->udev = udev; | |
88da765f | 870 | dev->intf = iface; |
f89bd95c HR |
871 | dev->input = input_dev; |
872 | dev->cfg = *cfg; | |
873 | mutex_init(&dev->pm_mutex); | |
874 | ||
875 | /* setup urbs */ | |
43f482b4 HR |
876 | if (cfg->tp_type == TYPE1) { |
877 | dev->bt_urb = usb_alloc_urb(0, GFP_KERNEL); | |
878 | if (!dev->bt_urb) | |
879 | goto err_free_devs; | |
880 | } | |
f89bd95c HR |
881 | |
882 | dev->tp_urb = usb_alloc_urb(0, GFP_KERNEL); | |
883 | if (!dev->tp_urb) | |
884 | goto err_free_bt_urb; | |
885 | ||
43f482b4 HR |
886 | if (dev->bt_urb) { |
887 | dev->bt_data = usb_alloc_coherent(dev->udev, | |
997ea58e DM |
888 | dev->cfg.bt_datalen, GFP_KERNEL, |
889 | &dev->bt_urb->transfer_dma); | |
43f482b4 HR |
890 | if (!dev->bt_data) |
891 | goto err_free_urb; | |
892 | } | |
f89bd95c | 893 | |
997ea58e DM |
894 | dev->tp_data = usb_alloc_coherent(dev->udev, |
895 | dev->cfg.tp_datalen, GFP_KERNEL, | |
896 | &dev->tp_urb->transfer_dma); | |
f89bd95c HR |
897 | if (!dev->tp_data) |
898 | goto err_free_bt_buffer; | |
899 | ||
43f482b4 HR |
900 | if (dev->bt_urb) |
901 | usb_fill_int_urb(dev->bt_urb, udev, | |
902 | usb_rcvintpipe(udev, cfg->bt_ep), | |
903 | dev->bt_data, dev->cfg.bt_datalen, | |
904 | bcm5974_irq_button, dev, 1); | |
f89bd95c HR |
905 | |
906 | usb_fill_int_urb(dev->tp_urb, udev, | |
907 | usb_rcvintpipe(udev, cfg->tp_ep), | |
908 | dev->tp_data, dev->cfg.tp_datalen, | |
909 | bcm5974_irq_trackpad, dev, 1); | |
910 | ||
911 | /* create bcm5974 device */ | |
912 | usb_make_path(udev, dev->phys, sizeof(dev->phys)); | |
913 | strlcat(dev->phys, "/input0", sizeof(dev->phys)); | |
914 | ||
915 | input_dev->name = "bcm5974"; | |
916 | input_dev->phys = dev->phys; | |
917 | usb_to_input_id(dev->udev, &input_dev->id); | |
158e9287 HR |
918 | /* report driver capabilities via the version field */ |
919 | input_dev->id.version = cfg->caps; | |
f89bd95c HR |
920 | input_dev->dev.parent = &iface->dev; |
921 | ||
922 | input_set_drvdata(input_dev, dev); | |
923 | ||
924 | input_dev->open = bcm5974_open; | |
925 | input_dev->close = bcm5974_close; | |
926 | ||
927 | setup_events_to_report(input_dev, cfg); | |
928 | ||
929 | error = input_register_device(dev->input); | |
930 | if (error) | |
931 | goto err_free_buffer; | |
932 | ||
933 | /* save our data pointer in this interface device */ | |
934 | usb_set_intfdata(iface, dev); | |
935 | ||
936 | return 0; | |
937 | ||
938 | err_free_buffer: | |
997ea58e | 939 | usb_free_coherent(dev->udev, dev->cfg.tp_datalen, |
f89bd95c HR |
940 | dev->tp_data, dev->tp_urb->transfer_dma); |
941 | err_free_bt_buffer: | |
43f482b4 HR |
942 | if (dev->bt_urb) |
943 | usb_free_coherent(dev->udev, dev->cfg.bt_datalen, | |
944 | dev->bt_data, dev->bt_urb->transfer_dma); | |
f89bd95c HR |
945 | err_free_urb: |
946 | usb_free_urb(dev->tp_urb); | |
947 | err_free_bt_urb: | |
948 | usb_free_urb(dev->bt_urb); | |
949 | err_free_devs: | |
950 | usb_set_intfdata(iface, NULL); | |
951 | input_free_device(input_dev); | |
952 | kfree(dev); | |
953 | return error; | |
954 | } | |
955 | ||
956 | static void bcm5974_disconnect(struct usb_interface *iface) | |
957 | { | |
958 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
959 | ||
960 | usb_set_intfdata(iface, NULL); | |
961 | ||
962 | input_unregister_device(dev->input); | |
997ea58e DM |
963 | usb_free_coherent(dev->udev, dev->cfg.tp_datalen, |
964 | dev->tp_data, dev->tp_urb->transfer_dma); | |
43f482b4 HR |
965 | if (dev->bt_urb) |
966 | usb_free_coherent(dev->udev, dev->cfg.bt_datalen, | |
967 | dev->bt_data, dev->bt_urb->transfer_dma); | |
f89bd95c HR |
968 | usb_free_urb(dev->tp_urb); |
969 | usb_free_urb(dev->bt_urb); | |
970 | kfree(dev); | |
971 | } | |
972 | ||
973 | static struct usb_driver bcm5974_driver = { | |
974 | .name = "bcm5974", | |
975 | .probe = bcm5974_probe, | |
976 | .disconnect = bcm5974_disconnect, | |
977 | .suspend = bcm5974_suspend, | |
978 | .resume = bcm5974_resume, | |
f89bd95c | 979 | .id_table = bcm5974_table, |
88da765f | 980 | .supports_autosuspend = 1, |
f89bd95c HR |
981 | }; |
982 | ||
08642e7c | 983 | module_usb_driver(bcm5974_driver); |