Commit | Line | Data |
---|---|---|
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) | |
d5806926 | 5 | * Copyright (C) 2015 John Horan (knasher@gmail.com) |
f89bd95c HR |
6 | * |
7 | * The USB initialization and package decoding was made by | |
8 | * Scott Shawcroft as part of the touchd user-space driver project: | |
9 | * Copyright (C) 2008 Scott Shawcroft (scott.shawcroft@gmail.com) | |
10 | * | |
11 | * The BCM5974 driver is based on the appletouch driver: | |
12 | * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) | |
13 | * Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net) | |
14 | * Copyright (C) 2005 Stelian Pop (stelian@popies.net) | |
15 | * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de) | |
16 | * Copyright (C) 2005 Peter Osterlund (petero2@telia.com) | |
17 | * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch) | |
18 | * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch) | |
19 | * | |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
24 | * | |
25 | * This program is distributed in the hope that it will be useful, | |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License | |
31 | * along with this program; if not, write to the Free Software | |
32 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
33 | * | |
34 | */ | |
35 | ||
36 | #include <linux/kernel.h> | |
37 | #include <linux/errno.h> | |
f89bd95c HR |
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> | |
51c80b74 | 43 | #include <linux/input/mt.h> |
f89bd95c HR |
44 | |
45 | #define USB_VENDOR_ID_APPLE 0x05ac | |
46 | ||
47 | /* MacbookAir, aka wellspring */ | |
48 | #define USB_DEVICE_ID_APPLE_WELLSPRING_ANSI 0x0223 | |
49 | #define USB_DEVICE_ID_APPLE_WELLSPRING_ISO 0x0224 | |
50 | #define USB_DEVICE_ID_APPLE_WELLSPRING_JIS 0x0225 | |
51 | /* MacbookProPenryn, aka wellspring2 */ | |
52 | #define USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI 0x0230 | |
53 | #define USB_DEVICE_ID_APPLE_WELLSPRING2_ISO 0x0231 | |
54 | #define USB_DEVICE_ID_APPLE_WELLSPRING2_JIS 0x0232 | |
158e9287 HR |
55 | /* Macbook5,1 (unibody), aka wellspring3 */ |
56 | #define USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI 0x0236 | |
57 | #define USB_DEVICE_ID_APPLE_WELLSPRING3_ISO 0x0237 | |
58 | #define USB_DEVICE_ID_APPLE_WELLSPRING3_JIS 0x0238 | |
6021afcf EH |
59 | /* MacbookAir3,2 (unibody), aka wellspring5 */ |
60 | #define USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI 0x023f | |
61 | #define USB_DEVICE_ID_APPLE_WELLSPRING4_ISO 0x0240 | |
62 | #define USB_DEVICE_ID_APPLE_WELLSPRING4_JIS 0x0241 | |
63 | /* MacbookAir3,1 (unibody), aka wellspring4 */ | |
64 | #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI 0x0242 | |
65 | #define USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO 0x0243 | |
66 | #define USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS 0x0244 | |
47340bd9 AB |
67 | /* Macbook8 (unibody, March 2011) */ |
68 | #define USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI 0x0245 | |
69 | #define USB_DEVICE_ID_APPLE_WELLSPRING5_ISO 0x0246 | |
70 | #define USB_DEVICE_ID_APPLE_WELLSPRING5_JIS 0x0247 | |
1c601bea PAVM |
71 | /* MacbookAir4,1 (unibody, July 2011) */ |
72 | #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI 0x0249 | |
73 | #define USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO 0x024a | |
74 | #define USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS 0x024b | |
db0b34b0 JD |
75 | /* MacbookAir4,2 (unibody, July 2011) */ |
76 | #define USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI 0x024c | |
77 | #define USB_DEVICE_ID_APPLE_WELLSPRING6_ISO 0x024d | |
78 | #define USB_DEVICE_ID_APPLE_WELLSPRING6_JIS 0x024e | |
c331eb58 AD |
79 | /* Macbook8,2 (unibody) */ |
80 | #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI 0x0252 | |
81 | #define USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO 0x0253 | |
82 | #define USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS 0x0254 | |
3dde22a9 HR |
83 | /* MacbookPro10,1 (unibody, June 2012) */ |
84 | #define USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI 0x0262 | |
85 | #define USB_DEVICE_ID_APPLE_WELLSPRING7_ISO 0x0263 | |
86 | #define USB_DEVICE_ID_APPLE_WELLSPRING7_JIS 0x0264 | |
8d80da90 DH |
87 | /* MacbookPro10,2 (unibody, October 2012) */ |
88 | #define USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI 0x0259 | |
89 | #define USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO 0x025a | |
90 | #define USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS 0x025b | |
148c1c8a | 91 | /* MacbookAir6,2 (unibody, June 2013) */ |
8c89cc17 HR |
92 | #define USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI 0x0290 |
93 | #define USB_DEVICE_ID_APPLE_WELLSPRING8_ISO 0x0291 | |
94 | #define USB_DEVICE_ID_APPLE_WELLSPRING8_JIS 0x0292 | |
d5806926 JH |
95 | /* MacbookPro12,1 (2015) */ |
96 | #define USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI 0x0272 | |
97 | #define USB_DEVICE_ID_APPLE_WELLSPRING9_ISO 0x0273 | |
98 | #define USB_DEVICE_ID_APPLE_WELLSPRING9_JIS 0x0274 | |
f89bd95c HR |
99 | |
100 | #define BCM5974_DEVICE(prod) { \ | |
101 | .match_flags = (USB_DEVICE_ID_MATCH_DEVICE | \ | |
102 | USB_DEVICE_ID_MATCH_INT_CLASS | \ | |
103 | USB_DEVICE_ID_MATCH_INT_PROTOCOL), \ | |
104 | .idVendor = USB_VENDOR_ID_APPLE, \ | |
105 | .idProduct = (prod), \ | |
106 | .bInterfaceClass = USB_INTERFACE_CLASS_HID, \ | |
107 | .bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE \ | |
108 | } | |
109 | ||
110 | /* table of devices that work with this driver */ | |
158e0fb6 | 111 | static const struct usb_device_id bcm5974_table[] = { |
f89bd95c HR |
112 | /* MacbookAir1.1 */ |
113 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ANSI), | |
114 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ISO), | |
115 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_JIS), | |
116 | /* MacbookProPenryn */ | |
117 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI), | |
118 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ISO), | |
119 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_JIS), | |
158e9287 HR |
120 | /* Macbook5,1 */ |
121 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI), | |
122 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ISO), | |
123 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_JIS), | |
6021afcf EH |
124 | /* MacbookAir3,2 */ |
125 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI), | |
126 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ISO), | |
127 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_JIS), | |
128 | /* MacbookAir3,1 */ | |
129 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI), | |
130 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO), | |
131 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS), | |
47340bd9 AB |
132 | /* MacbookPro8 */ |
133 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI), | |
134 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO), | |
135 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS), | |
1c601bea PAVM |
136 | /* MacbookAir4,1 */ |
137 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI), | |
138 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO), | |
139 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS), | |
db0b34b0 JD |
140 | /* MacbookAir4,2 */ |
141 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI), | |
142 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ISO), | |
143 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_JIS), | |
c331eb58 AD |
144 | /* MacbookPro8,2 */ |
145 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI), | |
146 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO), | |
147 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS), | |
3dde22a9 HR |
148 | /* MacbookPro10,1 */ |
149 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI), | |
150 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ISO), | |
151 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_JIS), | |
8d80da90 DH |
152 | /* MacbookPro10,2 */ |
153 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI), | |
154 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO), | |
155 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS), | |
148c1c8a DT |
156 | /* MacbookAir6,2 */ |
157 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI), | |
158 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING8_ISO), | |
159 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING8_JIS), | |
d5806926 JH |
160 | /* MacbookPro12,1 */ |
161 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI), | |
162 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING9_ISO), | |
163 | BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING9_JIS), | |
f89bd95c HR |
164 | /* Terminating entry */ |
165 | {} | |
166 | }; | |
167 | MODULE_DEVICE_TABLE(usb, bcm5974_table); | |
168 | ||
169 | MODULE_AUTHOR("Henrik Rydberg"); | |
170 | MODULE_DESCRIPTION("Apple USB BCM5974 multitouch driver"); | |
171 | MODULE_LICENSE("GPL"); | |
172 | ||
173 | #define dprintk(level, format, a...)\ | |
174 | { if (debug >= level) printk(KERN_DEBUG format, ##a); } | |
175 | ||
176 | static int debug = 1; | |
177 | module_param(debug, int, 0644); | |
178 | MODULE_PARM_DESC(debug, "Activate debugging output"); | |
179 | ||
180 | /* button data structure */ | |
181 | struct bt_data { | |
182 | u8 unknown1; /* constant */ | |
183 | u8 button; /* left button */ | |
184 | u8 rel_x; /* relative x coordinate */ | |
185 | u8 rel_y; /* relative y coordinate */ | |
186 | }; | |
187 | ||
9894cf0f HR |
188 | /* trackpad header types */ |
189 | enum tp_type { | |
158e9287 | 190 | TYPE1, /* plain trackpad */ |
148c1c8a | 191 | TYPE2, /* button integrated in trackpad */ |
d5806926 JH |
192 | TYPE3, /* additional header fields since June 2013 */ |
193 | TYPE4 /* additional header field for pressure data */ | |
f89bd95c HR |
194 | }; |
195 | ||
9894cf0f | 196 | /* trackpad finger data offsets, le16-aligned */ |
efbd3470 HR |
197 | #define HEADER_TYPE1 (13 * sizeof(__le16)) |
198 | #define HEADER_TYPE2 (15 * sizeof(__le16)) | |
199 | #define HEADER_TYPE3 (19 * sizeof(__le16)) | |
d5806926 | 200 | #define HEADER_TYPE4 (23 * sizeof(__le16)) |
158e9287 HR |
201 | |
202 | /* trackpad button data offsets */ | |
efbd3470 | 203 | #define BUTTON_TYPE1 0 |
158e9287 | 204 | #define BUTTON_TYPE2 15 |
148c1c8a | 205 | #define BUTTON_TYPE3 23 |
d5806926 | 206 | #define BUTTON_TYPE4 31 |
158e9287 HR |
207 | |
208 | /* list of device capability bits */ | |
209 | #define HAS_INTEGRATED_BUTTON 1 | |
9894cf0f | 210 | |
efbd3470 HR |
211 | /* trackpad finger data block size */ |
212 | #define FSIZE_TYPE1 (14 * sizeof(__le16)) | |
213 | #define FSIZE_TYPE2 (14 * sizeof(__le16)) | |
214 | #define FSIZE_TYPE3 (14 * sizeof(__le16)) | |
d5806926 | 215 | #define FSIZE_TYPE4 (15 * sizeof(__le16)) |
efbd3470 HR |
216 | |
217 | /* offset from header to finger struct */ | |
218 | #define DELTA_TYPE1 (0 * sizeof(__le16)) | |
219 | #define DELTA_TYPE2 (0 * sizeof(__le16)) | |
220 | #define DELTA_TYPE3 (0 * sizeof(__le16)) | |
d5806926 | 221 | #define DELTA_TYPE4 (1 * sizeof(__le16)) |
efbd3470 HR |
222 | |
223 | /* usb control message mode switch data */ | |
224 | #define USBMSG_TYPE1 8, 0x300, 0, 0, 0x1, 0x8 | |
225 | #define USBMSG_TYPE2 8, 0x300, 0, 0, 0x1, 0x8 | |
226 | #define USBMSG_TYPE3 8, 0x300, 0, 0, 0x1, 0x8 | |
d5806926 | 227 | #define USBMSG_TYPE4 2, 0x302, 2, 1, 0x1, 0x0 |
efbd3470 HR |
228 | |
229 | /* Wellspring initialization constants */ | |
230 | #define BCM5974_WELLSPRING_MODE_READ_REQUEST_ID 1 | |
231 | #define BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID 9 | |
232 | ||
9894cf0f | 233 | /* trackpad finger structure, le16-aligned */ |
f89bd95c | 234 | struct tp_finger { |
75e21e3f | 235 | __le16 origin; /* zero when switching track finger */ |
f89bd95c HR |
236 | __le16 abs_x; /* absolute x coodinate */ |
237 | __le16 abs_y; /* absolute y coodinate */ | |
238 | __le16 rel_x; /* relative x coodinate */ | |
239 | __le16 rel_y; /* relative y coodinate */ | |
f17953ab HR |
240 | __le16 tool_major; /* tool area, major axis */ |
241 | __le16 tool_minor; /* tool area, minor axis */ | |
f89bd95c | 242 | __le16 orientation; /* 16384 when point, else 15 bit angle */ |
f17953ab HR |
243 | __le16 touch_major; /* touch area, major axis */ |
244 | __le16 touch_minor; /* touch area, minor axis */ | |
d5806926 JH |
245 | __le16 unused[2]; /* zeros */ |
246 | __le16 pressure; /* pressure on forcetouch touchpad */ | |
f89bd95c | 247 | __le16 multi; /* one finger: varies, more fingers: constant */ |
9894cf0f | 248 | } __attribute__((packed,aligned(2))); |
f89bd95c | 249 | |
9894cf0f | 250 | /* trackpad finger data size, empirically at least ten fingers */ |
f17953ab | 251 | #define MAX_FINGERS 16 |
6f2701b7 | 252 | #define MAX_FINGER_ORIENTATION 16384 |
f89bd95c HR |
253 | |
254 | /* device-specific parameters */ | |
255 | struct bcm5974_param { | |
0e726966 HR |
256 | int snratio; /* signal-to-noise ratio */ |
257 | int min; /* device minimum reading */ | |
258 | int max; /* device maximum reading */ | |
f89bd95c HR |
259 | }; |
260 | ||
261 | /* device-specific configuration */ | |
262 | struct bcm5974_config { | |
263 | int ansi, iso, jis; /* the product id of this device */ | |
158e9287 | 264 | int caps; /* device capability bitmask */ |
f89bd95c HR |
265 | int bt_ep; /* the endpoint of the button interface */ |
266 | int bt_datalen; /* data length of the button interface */ | |
267 | int tp_ep; /* the endpoint of the trackpad interface */ | |
9894cf0f | 268 | enum tp_type tp_type; /* type of trackpad interface */ |
efbd3470 | 269 | int tp_header; /* bytes in header block */ |
f89bd95c | 270 | int tp_datalen; /* data length of the trackpad interface */ |
efbd3470 HR |
271 | int tp_button; /* offset to button data */ |
272 | int tp_fsize; /* bytes in single finger block */ | |
273 | int tp_delta; /* offset from header to finger struct */ | |
274 | int um_size; /* usb control message length */ | |
275 | int um_req_val; /* usb control message value */ | |
276 | int um_req_idx; /* usb control message index */ | |
277 | int um_switch_idx; /* usb control message mode switch index */ | |
278 | int um_switch_on; /* usb control message mode switch on */ | |
279 | int um_switch_off; /* usb control message mode switch off */ | |
f89bd95c HR |
280 | struct bcm5974_param p; /* finger pressure limits */ |
281 | struct bcm5974_param w; /* finger width limits */ | |
282 | struct bcm5974_param x; /* horizontal limits */ | |
283 | struct bcm5974_param y; /* vertical limits */ | |
0e726966 | 284 | struct bcm5974_param o; /* orientation limits */ |
f89bd95c HR |
285 | }; |
286 | ||
287 | /* logical device structure */ | |
288 | struct bcm5974 { | |
289 | char phys[64]; | |
290 | struct usb_device *udev; /* usb device */ | |
88da765f | 291 | struct usb_interface *intf; /* our interface */ |
f89bd95c HR |
292 | struct input_dev *input; /* input dev */ |
293 | struct bcm5974_config cfg; /* device configuration */ | |
294 | struct mutex pm_mutex; /* serialize access to open/suspend */ | |
295 | int opened; /* 1: opened, 0: closed */ | |
296 | struct urb *bt_urb; /* button usb request block */ | |
297 | struct bt_data *bt_data; /* button transferred data */ | |
298 | struct urb *tp_urb; /* trackpad usb request block */ | |
9894cf0f | 299 | u8 *tp_data; /* trackpad transferred data */ |
51c80b74 HR |
300 | const struct tp_finger *index[MAX_FINGERS]; /* finger index data */ |
301 | struct input_mt_pos pos[MAX_FINGERS]; /* position array */ | |
302 | int slots[MAX_FINGERS]; /* slot assignments */ | |
f89bd95c HR |
303 | }; |
304 | ||
efbd3470 HR |
305 | /* trackpad finger block data, le16-aligned */ |
306 | static const struct tp_finger *get_tp_finger(const struct bcm5974 *dev, int i) | |
307 | { | |
308 | const struct bcm5974_config *c = &dev->cfg; | |
309 | u8 *f_base = dev->tp_data + c->tp_header + c->tp_delta; | |
310 | ||
311 | return (const struct tp_finger *)(f_base + i * c->tp_fsize); | |
312 | } | |
313 | ||
314 | #define DATAFORMAT(type) \ | |
315 | type, \ | |
316 | HEADER_##type, \ | |
317 | HEADER_##type + (MAX_FINGERS) * (FSIZE_##type), \ | |
318 | BUTTON_##type, \ | |
319 | FSIZE_##type, \ | |
320 | DELTA_##type, \ | |
321 | USBMSG_##type | |
322 | ||
f89bd95c HR |
323 | /* logical signal quality */ |
324 | #define SN_PRESSURE 45 /* pressure signal-to-noise ratio */ | |
51c80b74 | 325 | #define SN_WIDTH 25 /* width signal-to-noise ratio */ |
f89bd95c | 326 | #define SN_COORD 250 /* coordinate signal-to-noise ratio */ |
0e726966 | 327 | #define SN_ORIENT 10 /* orientation signal-to-noise ratio */ |
75e21e3f | 328 | |
f89bd95c HR |
329 | /* device constants */ |
330 | static const struct bcm5974_config bcm5974_config_table[] = { | |
331 | { | |
332 | USB_DEVICE_ID_APPLE_WELLSPRING_ANSI, | |
333 | USB_DEVICE_ID_APPLE_WELLSPRING_ISO, | |
334 | USB_DEVICE_ID_APPLE_WELLSPRING_JIS, | |
158e9287 | 335 | 0, |
f89bd95c | 336 | 0x84, sizeof(struct bt_data), |
efbd3470 | 337 | 0x81, DATAFORMAT(TYPE1), |
0e726966 HR |
338 | { SN_PRESSURE, 0, 256 }, |
339 | { SN_WIDTH, 0, 2048 }, | |
340 | { SN_COORD, -4824, 5342 }, | |
341 | { SN_COORD, -172, 5820 }, | |
342 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
f89bd95c HR |
343 | }, |
344 | { | |
345 | USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI, | |
346 | USB_DEVICE_ID_APPLE_WELLSPRING2_ISO, | |
347 | USB_DEVICE_ID_APPLE_WELLSPRING2_JIS, | |
158e9287 | 348 | 0, |
f89bd95c | 349 | 0x84, sizeof(struct bt_data), |
efbd3470 | 350 | 0x81, DATAFORMAT(TYPE1), |
0e726966 HR |
351 | { SN_PRESSURE, 0, 256 }, |
352 | { SN_WIDTH, 0, 2048 }, | |
353 | { SN_COORD, -4824, 4824 }, | |
354 | { SN_COORD, -172, 4290 }, | |
355 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
f89bd95c | 356 | }, |
158e9287 HR |
357 | { |
358 | USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI, | |
359 | USB_DEVICE_ID_APPLE_WELLSPRING3_ISO, | |
360 | USB_DEVICE_ID_APPLE_WELLSPRING3_JIS, | |
361 | HAS_INTEGRATED_BUTTON, | |
362 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 363 | 0x81, DATAFORMAT(TYPE2), |
0e726966 HR |
364 | { SN_PRESSURE, 0, 300 }, |
365 | { SN_WIDTH, 0, 2048 }, | |
366 | { SN_COORD, -4460, 5166 }, | |
367 | { SN_COORD, -75, 6700 }, | |
368 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
158e9287 | 369 | }, |
6021afcf EH |
370 | { |
371 | USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI, | |
372 | USB_DEVICE_ID_APPLE_WELLSPRING4_ISO, | |
373 | USB_DEVICE_ID_APPLE_WELLSPRING4_JIS, | |
374 | HAS_INTEGRATED_BUTTON, | |
375 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 376 | 0x81, DATAFORMAT(TYPE2), |
0e726966 HR |
377 | { SN_PRESSURE, 0, 300 }, |
378 | { SN_WIDTH, 0, 2048 }, | |
379 | { SN_COORD, -4620, 5140 }, | |
380 | { SN_COORD, -150, 6600 }, | |
381 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
6021afcf EH |
382 | }, |
383 | { | |
384 | USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI, | |
385 | USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO, | |
386 | USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS, | |
387 | HAS_INTEGRATED_BUTTON, | |
388 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 389 | 0x81, DATAFORMAT(TYPE2), |
0e726966 HR |
390 | { SN_PRESSURE, 0, 300 }, |
391 | { SN_WIDTH, 0, 2048 }, | |
392 | { SN_COORD, -4616, 5112 }, | |
393 | { SN_COORD, -142, 5234 }, | |
394 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
6021afcf | 395 | }, |
47340bd9 AB |
396 | { |
397 | USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI, | |
398 | USB_DEVICE_ID_APPLE_WELLSPRING5_ISO, | |
399 | USB_DEVICE_ID_APPLE_WELLSPRING5_JIS, | |
400 | HAS_INTEGRATED_BUTTON, | |
401 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 402 | 0x81, DATAFORMAT(TYPE2), |
0e726966 HR |
403 | { SN_PRESSURE, 0, 300 }, |
404 | { SN_WIDTH, 0, 2048 }, | |
405 | { SN_COORD, -4415, 5050 }, | |
406 | { SN_COORD, -55, 6680 }, | |
407 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
47340bd9 | 408 | }, |
db0b34b0 JD |
409 | { |
410 | USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI, | |
411 | USB_DEVICE_ID_APPLE_WELLSPRING6_ISO, | |
412 | USB_DEVICE_ID_APPLE_WELLSPRING6_JIS, | |
413 | HAS_INTEGRATED_BUTTON, | |
414 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 415 | 0x81, DATAFORMAT(TYPE2), |
0e726966 HR |
416 | { SN_PRESSURE, 0, 300 }, |
417 | { SN_WIDTH, 0, 2048 }, | |
418 | { SN_COORD, -4620, 5140 }, | |
419 | { SN_COORD, -150, 6600 }, | |
420 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
db0b34b0 | 421 | }, |
c331eb58 AD |
422 | { |
423 | USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI, | |
424 | USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO, | |
425 | USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS, | |
426 | HAS_INTEGRATED_BUTTON, | |
427 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 428 | 0x81, DATAFORMAT(TYPE2), |
0e726966 HR |
429 | { SN_PRESSURE, 0, 300 }, |
430 | { SN_WIDTH, 0, 2048 }, | |
431 | { SN_COORD, -4750, 5280 }, | |
432 | { SN_COORD, -150, 6730 }, | |
433 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
c331eb58 | 434 | }, |
1c601bea PAVM |
435 | { |
436 | USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI, | |
437 | USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO, | |
438 | USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS, | |
439 | HAS_INTEGRATED_BUTTON, | |
440 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 441 | 0x81, DATAFORMAT(TYPE2), |
0e726966 HR |
442 | { SN_PRESSURE, 0, 300 }, |
443 | { SN_WIDTH, 0, 2048 }, | |
444 | { SN_COORD, -4620, 5140 }, | |
445 | { SN_COORD, -150, 6600 }, | |
446 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
1c601bea | 447 | }, |
3dde22a9 HR |
448 | { |
449 | USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI, | |
450 | USB_DEVICE_ID_APPLE_WELLSPRING7_ISO, | |
451 | USB_DEVICE_ID_APPLE_WELLSPRING7_JIS, | |
452 | HAS_INTEGRATED_BUTTON, | |
453 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 454 | 0x81, DATAFORMAT(TYPE2), |
0e726966 HR |
455 | { SN_PRESSURE, 0, 300 }, |
456 | { SN_WIDTH, 0, 2048 }, | |
457 | { SN_COORD, -4750, 5280 }, | |
458 | { SN_COORD, -150, 6730 }, | |
459 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
3dde22a9 | 460 | }, |
8d80da90 DH |
461 | { |
462 | USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI, | |
463 | USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO, | |
464 | USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS, | |
465 | HAS_INTEGRATED_BUTTON, | |
466 | 0x84, sizeof(struct bt_data), | |
efbd3470 | 467 | 0x81, DATAFORMAT(TYPE2), |
8d80da90 DH |
468 | { SN_PRESSURE, 0, 300 }, |
469 | { SN_WIDTH, 0, 2048 }, | |
470 | { SN_COORD, -4750, 5280 }, | |
471 | { SN_COORD, -150, 6730 }, | |
472 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
473 | }, | |
148c1c8a DT |
474 | { |
475 | USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI, | |
476 | USB_DEVICE_ID_APPLE_WELLSPRING8_ISO, | |
477 | USB_DEVICE_ID_APPLE_WELLSPRING8_JIS, | |
478 | HAS_INTEGRATED_BUTTON, | |
479 | 0, sizeof(struct bt_data), | |
efbd3470 | 480 | 0x83, DATAFORMAT(TYPE3), |
148c1c8a DT |
481 | { SN_PRESSURE, 0, 300 }, |
482 | { SN_WIDTH, 0, 2048 }, | |
483 | { SN_COORD, -4620, 5140 }, | |
484 | { SN_COORD, -150, 6600 }, | |
485 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
486 | }, | |
d5806926 JH |
487 | { |
488 | USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI, | |
489 | USB_DEVICE_ID_APPLE_WELLSPRING9_ISO, | |
490 | USB_DEVICE_ID_APPLE_WELLSPRING9_JIS, | |
491 | HAS_INTEGRATED_BUTTON, | |
492 | 0, sizeof(struct bt_data), | |
493 | 0x83, DATAFORMAT(TYPE4), | |
494 | { SN_PRESSURE, 0, 300 }, | |
495 | { SN_WIDTH, 0, 2048 }, | |
496 | { SN_COORD, -4828, 5345 }, | |
497 | { SN_COORD, -203, 6803 }, | |
498 | { SN_ORIENT, -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION } | |
499 | }, | |
f89bd95c HR |
500 | {} |
501 | }; | |
502 | ||
503 | /* return the device-specific configuration by device */ | |
504 | static const struct bcm5974_config *bcm5974_get_config(struct usb_device *udev) | |
505 | { | |
506 | u16 id = le16_to_cpu(udev->descriptor.idProduct); | |
507 | const struct bcm5974_config *cfg; | |
508 | ||
509 | for (cfg = bcm5974_config_table; cfg->ansi; ++cfg) | |
510 | if (cfg->ansi == id || cfg->iso == id || cfg->jis == id) | |
511 | return cfg; | |
512 | ||
513 | return bcm5974_config_table; | |
514 | } | |
515 | ||
516 | /* convert 16-bit little endian to signed integer */ | |
517 | static inline int raw2int(__le16 x) | |
518 | { | |
519 | return (signed short)le16_to_cpu(x); | |
520 | } | |
521 | ||
0e726966 HR |
522 | static void set_abs(struct input_dev *input, unsigned int code, |
523 | const struct bcm5974_param *p) | |
f89bd95c | 524 | { |
0e726966 HR |
525 | int fuzz = p->snratio ? (p->max - p->min) / p->snratio : 0; |
526 | input_set_abs_params(input, code, p->min, p->max, fuzz, 0); | |
f89bd95c HR |
527 | } |
528 | ||
529 | /* setup which logical events to report */ | |
530 | static void setup_events_to_report(struct input_dev *input_dev, | |
531 | const struct bcm5974_config *cfg) | |
532 | { | |
533 | __set_bit(EV_ABS, input_dev->evbit); | |
534 | ||
0e726966 HR |
535 | /* for synaptics only */ |
536 | input_set_abs_params(input_dev, ABS_PRESSURE, 0, 256, 5, 0); | |
537 | input_set_abs_params(input_dev, ABS_TOOL_WIDTH, 0, 16, 0, 0); | |
538 | ||
6f2701b7 | 539 | /* finger touch area */ |
0e726966 HR |
540 | set_abs(input_dev, ABS_MT_TOUCH_MAJOR, &cfg->w); |
541 | set_abs(input_dev, ABS_MT_TOUCH_MINOR, &cfg->w); | |
6f2701b7 | 542 | /* finger approach area */ |
0e726966 HR |
543 | set_abs(input_dev, ABS_MT_WIDTH_MAJOR, &cfg->w); |
544 | set_abs(input_dev, ABS_MT_WIDTH_MINOR, &cfg->w); | |
6f2701b7 | 545 | /* finger orientation */ |
0e726966 | 546 | set_abs(input_dev, ABS_MT_ORIENTATION, &cfg->o); |
6f2701b7 | 547 | /* finger position */ |
0e726966 HR |
548 | set_abs(input_dev, ABS_MT_POSITION_X, &cfg->x); |
549 | set_abs(input_dev, ABS_MT_POSITION_Y, &cfg->y); | |
6f2701b7 | 550 | |
f89bd95c | 551 | __set_bit(EV_KEY, input_dev->evbit); |
f89bd95c | 552 | __set_bit(BTN_LEFT, input_dev->keybit); |
c13aea03 | 553 | |
52965cc0 JP |
554 | if (cfg->caps & HAS_INTEGRATED_BUTTON) |
555 | __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit); | |
556 | ||
51c80b74 HR |
557 | input_mt_init_slots(input_dev, MAX_FINGERS, |
558 | INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK); | |
f89bd95c HR |
559 | } |
560 | ||
561 | /* report button data as logical button state */ | |
562 | static int report_bt_state(struct bcm5974 *dev, int size) | |
563 | { | |
564 | if (size != sizeof(struct bt_data)) | |
565 | return -EIO; | |
566 | ||
53402193 HR |
567 | dprintk(7, |
568 | "bcm5974: button data: %x %x %x %x\n", | |
569 | dev->bt_data->unknown1, dev->bt_data->button, | |
570 | dev->bt_data->rel_x, dev->bt_data->rel_y); | |
571 | ||
f89bd95c HR |
572 | input_report_key(dev->input, BTN_LEFT, dev->bt_data->button); |
573 | input_sync(dev->input); | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
51c80b74 HR |
578 | static void report_finger_data(struct input_dev *input, int slot, |
579 | const struct input_mt_pos *pos, | |
6f2701b7 HR |
580 | const struct tp_finger *f) |
581 | { | |
51c80b74 HR |
582 | input_mt_slot(input, slot); |
583 | input_mt_report_slot_state(input, MT_TOOL_FINGER, true); | |
584 | ||
57157bec | 585 | input_report_abs(input, ABS_MT_TOUCH_MAJOR, |
f17953ab | 586 | raw2int(f->touch_major) << 1); |
57157bec | 587 | input_report_abs(input, ABS_MT_TOUCH_MINOR, |
f17953ab | 588 | raw2int(f->touch_minor) << 1); |
57157bec | 589 | input_report_abs(input, ABS_MT_WIDTH_MAJOR, |
f17953ab | 590 | raw2int(f->tool_major) << 1); |
57157bec | 591 | input_report_abs(input, ABS_MT_WIDTH_MINOR, |
f17953ab | 592 | raw2int(f->tool_minor) << 1); |
6f2701b7 HR |
593 | input_report_abs(input, ABS_MT_ORIENTATION, |
594 | MAX_FINGER_ORIENTATION - raw2int(f->orientation)); | |
51c80b74 HR |
595 | input_report_abs(input, ABS_MT_POSITION_X, pos->x); |
596 | input_report_abs(input, ABS_MT_POSITION_Y, pos->y); | |
6f2701b7 HR |
597 | } |
598 | ||
0e726966 HR |
599 | static void report_synaptics_data(struct input_dev *input, |
600 | const struct bcm5974_config *cfg, | |
601 | const struct tp_finger *f, int raw_n) | |
602 | { | |
603 | int abs_p = 0, abs_w = 0; | |
604 | ||
605 | if (raw_n) { | |
606 | int p = raw2int(f->touch_major); | |
607 | int w = raw2int(f->tool_major); | |
608 | if (p > 0 && raw2int(f->origin)) { | |
609 | abs_p = clamp_val(256 * p / cfg->p.max, 0, 255); | |
610 | abs_w = clamp_val(16 * w / cfg->w.max, 0, 15); | |
611 | } | |
612 | } | |
613 | ||
614 | input_report_abs(input, ABS_PRESSURE, abs_p); | |
615 | input_report_abs(input, ABS_TOOL_WIDTH, abs_w); | |
616 | } | |
617 | ||
f89bd95c HR |
618 | /* report trackpad data as logical trackpad state */ |
619 | static int report_tp_state(struct bcm5974 *dev, int size) | |
620 | { | |
621 | const struct bcm5974_config *c = &dev->cfg; | |
9894cf0f | 622 | const struct tp_finger *f; |
f89bd95c | 623 | struct input_dev *input = dev->input; |
51c80b74 | 624 | int raw_n, i, n = 0; |
f89bd95c | 625 | |
efbd3470 | 626 | if (size < c->tp_header || (size - c->tp_header) % c->tp_fsize != 0) |
f89bd95c HR |
627 | return -EIO; |
628 | ||
efbd3470 | 629 | raw_n = (size - c->tp_header) / c->tp_fsize; |
9894cf0f | 630 | |
51c80b74 | 631 | for (i = 0; i < raw_n; i++) { |
efbd3470 HR |
632 | f = get_tp_finger(dev, i); |
633 | if (raw2int(f->touch_major) == 0) | |
51c80b74 | 634 | continue; |
efbd3470 HR |
635 | dev->pos[n].x = raw2int(f->abs_x); |
636 | dev->pos[n].y = c->y.min + c->y.max - raw2int(f->abs_y); | |
637 | dev->index[n++] = f; | |
f89bd95c HR |
638 | } |
639 | ||
448c7f38 | 640 | input_mt_assign_slots(input, dev->slots, dev->pos, n, 0); |
75e21e3f | 641 | |
51c80b74 HR |
642 | for (i = 0; i < n; i++) |
643 | report_finger_data(input, dev->slots[i], | |
644 | &dev->pos[i], dev->index[i]); | |
f89bd95c | 645 | |
51c80b74 HR |
646 | input_mt_sync_frame(input); |
647 | ||
efbd3470 | 648 | report_synaptics_data(input, c, get_tp_finger(dev, 0), raw_n); |
f89bd95c | 649 | |
efbd3470 HR |
650 | /* later types report button events via integrated button only */ |
651 | if (c->caps & HAS_INTEGRATED_BUTTON) { | |
652 | int ibt = raw2int(dev->tp_data[c->tp_button]); | |
158e9287 | 653 | input_report_key(input, BTN_LEFT, ibt); |
0e726966 | 654 | } |
158e9287 | 655 | |
f89bd95c HR |
656 | input_sync(input); |
657 | ||
658 | return 0; | |
659 | } | |
660 | ||
cd72ad3f | 661 | static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on) |
f89bd95c | 662 | { |
efbd3470 | 663 | const struct bcm5974_config *c = &dev->cfg; |
f89bd95c | 664 | int retval = 0, size; |
148c1c8a DT |
665 | char *data; |
666 | ||
667 | /* Type 3 does not require a mode switch */ | |
668 | if (dev->cfg.tp_type == TYPE3) | |
669 | return 0; | |
f89bd95c | 670 | |
efbd3470 | 671 | data = kmalloc(c->um_size, GFP_KERNEL); |
f89bd95c | 672 | if (!data) { |
ab943ca8 | 673 | dev_err(&dev->intf->dev, "out of memory\n"); |
f89bd95c HR |
674 | retval = -ENOMEM; |
675 | goto out; | |
676 | } | |
677 | ||
678 | /* read configuration */ | |
679 | size = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), | |
680 | BCM5974_WELLSPRING_MODE_READ_REQUEST_ID, | |
681 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
efbd3470 | 682 | c->um_req_val, c->um_req_idx, data, c->um_size, 5000); |
f89bd95c | 683 | |
efbd3470 | 684 | if (size != c->um_size) { |
ab943ca8 | 685 | dev_err(&dev->intf->dev, "could not read from device\n"); |
f89bd95c HR |
686 | retval = -EIO; |
687 | goto out; | |
688 | } | |
689 | ||
690 | /* apply the mode switch */ | |
efbd3470 | 691 | data[c->um_switch_idx] = on ? c->um_switch_on : c->um_switch_off; |
f89bd95c HR |
692 | |
693 | /* write configuration */ | |
694 | size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), | |
695 | BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID, | |
696 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
efbd3470 | 697 | c->um_req_val, c->um_req_idx, data, c->um_size, 5000); |
f89bd95c | 698 | |
efbd3470 | 699 | if (size != c->um_size) { |
ab943ca8 | 700 | dev_err(&dev->intf->dev, "could not write to device\n"); |
f89bd95c HR |
701 | retval = -EIO; |
702 | goto out; | |
703 | } | |
704 | ||
cd72ad3f HR |
705 | dprintk(2, "bcm5974: switched to %s mode.\n", |
706 | on ? "wellspring" : "normal"); | |
f89bd95c HR |
707 | |
708 | out: | |
709 | kfree(data); | |
710 | return retval; | |
711 | } | |
712 | ||
713 | static void bcm5974_irq_button(struct urb *urb) | |
714 | { | |
715 | struct bcm5974 *dev = urb->context; | |
ab943ca8 | 716 | struct usb_interface *intf = dev->intf; |
f89bd95c HR |
717 | int error; |
718 | ||
719 | switch (urb->status) { | |
720 | case 0: | |
721 | break; | |
722 | case -EOVERFLOW: | |
723 | case -ECONNRESET: | |
724 | case -ENOENT: | |
725 | case -ESHUTDOWN: | |
ab943ca8 | 726 | dev_dbg(&intf->dev, "button urb shutting down: %d\n", |
bd028769 | 727 | urb->status); |
f89bd95c HR |
728 | return; |
729 | default: | |
ab943ca8 | 730 | dev_dbg(&intf->dev, "button urb status: %d\n", urb->status); |
f89bd95c HR |
731 | goto exit; |
732 | } | |
733 | ||
734 | if (report_bt_state(dev, dev->bt_urb->actual_length)) | |
735 | dprintk(1, "bcm5974: bad button package, length: %d\n", | |
736 | dev->bt_urb->actual_length); | |
737 | ||
738 | exit: | |
739 | error = usb_submit_urb(dev->bt_urb, GFP_ATOMIC); | |
740 | if (error) | |
ab943ca8 | 741 | dev_err(&intf->dev, "button urb failed: %d\n", error); |
f89bd95c HR |
742 | } |
743 | ||
744 | static void bcm5974_irq_trackpad(struct urb *urb) | |
745 | { | |
746 | struct bcm5974 *dev = urb->context; | |
ab943ca8 | 747 | struct usb_interface *intf = dev->intf; |
f89bd95c HR |
748 | int error; |
749 | ||
750 | switch (urb->status) { | |
751 | case 0: | |
752 | break; | |
753 | case -EOVERFLOW: | |
754 | case -ECONNRESET: | |
755 | case -ENOENT: | |
756 | case -ESHUTDOWN: | |
ab943ca8 | 757 | dev_dbg(&intf->dev, "trackpad urb shutting down: %d\n", |
bd028769 | 758 | urb->status); |
f89bd95c HR |
759 | return; |
760 | default: | |
ab943ca8 | 761 | dev_dbg(&intf->dev, "trackpad urb status: %d\n", urb->status); |
f89bd95c HR |
762 | goto exit; |
763 | } | |
764 | ||
765 | /* control response ignored */ | |
766 | if (dev->tp_urb->actual_length == 2) | |
767 | goto exit; | |
768 | ||
769 | if (report_tp_state(dev, dev->tp_urb->actual_length)) | |
770 | dprintk(1, "bcm5974: bad trackpad package, length: %d\n", | |
771 | dev->tp_urb->actual_length); | |
772 | ||
773 | exit: | |
774 | error = usb_submit_urb(dev->tp_urb, GFP_ATOMIC); | |
775 | if (error) | |
ab943ca8 | 776 | dev_err(&intf->dev, "trackpad urb failed: %d\n", error); |
f89bd95c HR |
777 | } |
778 | ||
779 | /* | |
780 | * The Wellspring trackpad, like many recent Apple trackpads, share | |
781 | * the usb device with the keyboard. Since keyboards are usually | |
782 | * handled by the HID system, the device ends up being handled by two | |
783 | * modules. Setting up the device therefore becomes slightly | |
784 | * complicated. To enable multitouch features, a mode switch is | |
785 | * required, which is usually applied via the control interface of the | |
786 | * device. It can be argued where this switch should take place. In | |
787 | * some drivers, like appletouch, the switch is made during | |
788 | * probe. However, the hid module may also alter the state of the | |
789 | * device, resulting in trackpad malfunction under certain | |
790 | * circumstances. To get around this problem, there is at least one | |
791 | * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to | |
25985edc | 792 | * receive a reset_resume request rather than the normal resume. |
f89bd95c HR |
793 | * Since the implementation of reset_resume is equal to mode switch |
794 | * plus start_traffic, it seems easier to always do the switch when | |
795 | * starting traffic on the device. | |
796 | */ | |
797 | static int bcm5974_start_traffic(struct bcm5974 *dev) | |
798 | { | |
1719ec41 LJ |
799 | int error; |
800 | ||
801 | error = bcm5974_wellspring_mode(dev, true); | |
802 | if (error) { | |
f89bd95c | 803 | dprintk(1, "bcm5974: mode switch failed\n"); |
1719ec41 | 804 | goto err_out; |
f89bd95c HR |
805 | } |
806 | ||
43f482b4 HR |
807 | if (dev->bt_urb) { |
808 | error = usb_submit_urb(dev->bt_urb, GFP_KERNEL); | |
809 | if (error) | |
810 | goto err_reset_mode; | |
811 | } | |
f89bd95c | 812 | |
1719ec41 LJ |
813 | error = usb_submit_urb(dev->tp_urb, GFP_KERNEL); |
814 | if (error) | |
f89bd95c HR |
815 | goto err_kill_bt; |
816 | ||
817 | return 0; | |
818 | ||
819 | err_kill_bt: | |
820 | usb_kill_urb(dev->bt_urb); | |
1719ec41 LJ |
821 | err_reset_mode: |
822 | bcm5974_wellspring_mode(dev, false); | |
823 | err_out: | |
824 | return error; | |
f89bd95c HR |
825 | } |
826 | ||
827 | static void bcm5974_pause_traffic(struct bcm5974 *dev) | |
828 | { | |
829 | usb_kill_urb(dev->tp_urb); | |
830 | usb_kill_urb(dev->bt_urb); | |
cd72ad3f | 831 | bcm5974_wellspring_mode(dev, false); |
f89bd95c HR |
832 | } |
833 | ||
834 | /* | |
835 | * The code below implements open/close and manual suspend/resume. | |
836 | * All functions may be called in random order. | |
837 | * | |
838 | * Opening a suspended device fails with EACCES - permission denied. | |
839 | * | |
840 | * Failing a resume leaves the device resumed but closed. | |
841 | */ | |
842 | static int bcm5974_open(struct input_dev *input) | |
843 | { | |
844 | struct bcm5974 *dev = input_get_drvdata(input); | |
845 | int error; | |
846 | ||
88da765f DT |
847 | error = usb_autopm_get_interface(dev->intf); |
848 | if (error) | |
849 | return error; | |
850 | ||
f89bd95c HR |
851 | mutex_lock(&dev->pm_mutex); |
852 | ||
853 | error = bcm5974_start_traffic(dev); | |
854 | if (!error) | |
855 | dev->opened = 1; | |
856 | ||
857 | mutex_unlock(&dev->pm_mutex); | |
858 | ||
88da765f DT |
859 | if (error) |
860 | usb_autopm_put_interface(dev->intf); | |
861 | ||
f89bd95c HR |
862 | return error; |
863 | } | |
864 | ||
865 | static void bcm5974_close(struct input_dev *input) | |
866 | { | |
867 | struct bcm5974 *dev = input_get_drvdata(input); | |
868 | ||
869 | mutex_lock(&dev->pm_mutex); | |
870 | ||
871 | bcm5974_pause_traffic(dev); | |
872 | dev->opened = 0; | |
873 | ||
874 | mutex_unlock(&dev->pm_mutex); | |
88da765f DT |
875 | |
876 | usb_autopm_put_interface(dev->intf); | |
f89bd95c HR |
877 | } |
878 | ||
879 | static int bcm5974_suspend(struct usb_interface *iface, pm_message_t message) | |
880 | { | |
881 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
882 | ||
883 | mutex_lock(&dev->pm_mutex); | |
884 | ||
885 | if (dev->opened) | |
886 | bcm5974_pause_traffic(dev); | |
887 | ||
888 | mutex_unlock(&dev->pm_mutex); | |
889 | ||
890 | return 0; | |
891 | } | |
892 | ||
893 | static int bcm5974_resume(struct usb_interface *iface) | |
894 | { | |
895 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
896 | int error = 0; | |
897 | ||
898 | mutex_lock(&dev->pm_mutex); | |
899 | ||
900 | if (dev->opened) | |
901 | error = bcm5974_start_traffic(dev); | |
902 | ||
903 | mutex_unlock(&dev->pm_mutex); | |
904 | ||
905 | return error; | |
906 | } | |
907 | ||
908 | static int bcm5974_probe(struct usb_interface *iface, | |
909 | const struct usb_device_id *id) | |
910 | { | |
911 | struct usb_device *udev = interface_to_usbdev(iface); | |
912 | const struct bcm5974_config *cfg; | |
913 | struct bcm5974 *dev; | |
914 | struct input_dev *input_dev; | |
915 | int error = -ENOMEM; | |
916 | ||
917 | /* find the product index */ | |
918 | cfg = bcm5974_get_config(udev); | |
919 | ||
920 | /* allocate memory for our device state and initialize it */ | |
921 | dev = kzalloc(sizeof(struct bcm5974), GFP_KERNEL); | |
922 | input_dev = input_allocate_device(); | |
923 | if (!dev || !input_dev) { | |
6c1d1b24 | 924 | dev_err(&iface->dev, "out of memory\n"); |
f89bd95c HR |
925 | goto err_free_devs; |
926 | } | |
927 | ||
928 | dev->udev = udev; | |
88da765f | 929 | dev->intf = iface; |
f89bd95c HR |
930 | dev->input = input_dev; |
931 | dev->cfg = *cfg; | |
932 | mutex_init(&dev->pm_mutex); | |
933 | ||
934 | /* setup urbs */ | |
43f482b4 HR |
935 | if (cfg->tp_type == TYPE1) { |
936 | dev->bt_urb = usb_alloc_urb(0, GFP_KERNEL); | |
937 | if (!dev->bt_urb) | |
938 | goto err_free_devs; | |
939 | } | |
f89bd95c HR |
940 | |
941 | dev->tp_urb = usb_alloc_urb(0, GFP_KERNEL); | |
942 | if (!dev->tp_urb) | |
943 | goto err_free_bt_urb; | |
944 | ||
43f482b4 HR |
945 | if (dev->bt_urb) { |
946 | dev->bt_data = usb_alloc_coherent(dev->udev, | |
997ea58e DM |
947 | dev->cfg.bt_datalen, GFP_KERNEL, |
948 | &dev->bt_urb->transfer_dma); | |
43f482b4 HR |
949 | if (!dev->bt_data) |
950 | goto err_free_urb; | |
951 | } | |
f89bd95c | 952 | |
997ea58e DM |
953 | dev->tp_data = usb_alloc_coherent(dev->udev, |
954 | dev->cfg.tp_datalen, GFP_KERNEL, | |
955 | &dev->tp_urb->transfer_dma); | |
f89bd95c HR |
956 | if (!dev->tp_data) |
957 | goto err_free_bt_buffer; | |
958 | ||
43f482b4 HR |
959 | if (dev->bt_urb) |
960 | usb_fill_int_urb(dev->bt_urb, udev, | |
961 | usb_rcvintpipe(udev, cfg->bt_ep), | |
962 | dev->bt_data, dev->cfg.bt_datalen, | |
963 | bcm5974_irq_button, dev, 1); | |
f89bd95c HR |
964 | |
965 | usb_fill_int_urb(dev->tp_urb, udev, | |
966 | usb_rcvintpipe(udev, cfg->tp_ep), | |
967 | dev->tp_data, dev->cfg.tp_datalen, | |
968 | bcm5974_irq_trackpad, dev, 1); | |
969 | ||
970 | /* create bcm5974 device */ | |
971 | usb_make_path(udev, dev->phys, sizeof(dev->phys)); | |
972 | strlcat(dev->phys, "/input0", sizeof(dev->phys)); | |
973 | ||
974 | input_dev->name = "bcm5974"; | |
975 | input_dev->phys = dev->phys; | |
976 | usb_to_input_id(dev->udev, &input_dev->id); | |
158e9287 HR |
977 | /* report driver capabilities via the version field */ |
978 | input_dev->id.version = cfg->caps; | |
f89bd95c HR |
979 | input_dev->dev.parent = &iface->dev; |
980 | ||
981 | input_set_drvdata(input_dev, dev); | |
982 | ||
983 | input_dev->open = bcm5974_open; | |
984 | input_dev->close = bcm5974_close; | |
985 | ||
986 | setup_events_to_report(input_dev, cfg); | |
987 | ||
988 | error = input_register_device(dev->input); | |
989 | if (error) | |
990 | goto err_free_buffer; | |
991 | ||
992 | /* save our data pointer in this interface device */ | |
993 | usb_set_intfdata(iface, dev); | |
994 | ||
995 | return 0; | |
996 | ||
997 | err_free_buffer: | |
997ea58e | 998 | usb_free_coherent(dev->udev, dev->cfg.tp_datalen, |
f89bd95c HR |
999 | dev->tp_data, dev->tp_urb->transfer_dma); |
1000 | err_free_bt_buffer: | |
43f482b4 HR |
1001 | if (dev->bt_urb) |
1002 | usb_free_coherent(dev->udev, dev->cfg.bt_datalen, | |
1003 | dev->bt_data, dev->bt_urb->transfer_dma); | |
f89bd95c HR |
1004 | err_free_urb: |
1005 | usb_free_urb(dev->tp_urb); | |
1006 | err_free_bt_urb: | |
1007 | usb_free_urb(dev->bt_urb); | |
1008 | err_free_devs: | |
1009 | usb_set_intfdata(iface, NULL); | |
1010 | input_free_device(input_dev); | |
1011 | kfree(dev); | |
1012 | return error; | |
1013 | } | |
1014 | ||
1015 | static void bcm5974_disconnect(struct usb_interface *iface) | |
1016 | { | |
1017 | struct bcm5974 *dev = usb_get_intfdata(iface); | |
1018 | ||
1019 | usb_set_intfdata(iface, NULL); | |
1020 | ||
1021 | input_unregister_device(dev->input); | |
997ea58e DM |
1022 | usb_free_coherent(dev->udev, dev->cfg.tp_datalen, |
1023 | dev->tp_data, dev->tp_urb->transfer_dma); | |
43f482b4 HR |
1024 | if (dev->bt_urb) |
1025 | usb_free_coherent(dev->udev, dev->cfg.bt_datalen, | |
1026 | dev->bt_data, dev->bt_urb->transfer_dma); | |
f89bd95c HR |
1027 | usb_free_urb(dev->tp_urb); |
1028 | usb_free_urb(dev->bt_urb); | |
1029 | kfree(dev); | |
1030 | } | |
1031 | ||
1032 | static struct usb_driver bcm5974_driver = { | |
1033 | .name = "bcm5974", | |
1034 | .probe = bcm5974_probe, | |
1035 | .disconnect = bcm5974_disconnect, | |
1036 | .suspend = bcm5974_suspend, | |
1037 | .resume = bcm5974_resume, | |
f89bd95c | 1038 | .id_table = bcm5974_table, |
88da765f | 1039 | .supports_autosuspend = 1, |
f89bd95c HR |
1040 | }; |
1041 | ||
08642e7c | 1042 | module_usb_driver(bcm5974_driver); |