]>
Commit | Line | Data |
---|---|---|
f7214ff4 | 1 | /* |
9effa978 | 2 | * Apple USB Touchpad (for post-February 2005 PowerBooks and MacBooks) driver |
f7214ff4 SP |
3 | * |
4 | * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) | |
5 | * Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net) | |
6 | * Copyright (C) 2005 Stelian Pop (stelian@popies.net) | |
7 | * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de) | |
8 | * Copyright (C) 2005 Peter Osterlund (petero2@telia.com) | |
e1e02c9f | 9 | * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch) |
9effa978 | 10 | * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch) |
f7214ff4 SP |
11 | * |
12 | * Thanks to Alex Harper <basilisk@foobox.net> for his inputs. | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
27 | * | |
28 | */ | |
29 | ||
f7214ff4 SP |
30 | #include <linux/kernel.h> |
31 | #include <linux/errno.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/module.h> | |
ae0dadcf | 35 | #include <linux/usb/input.h> |
f7214ff4 SP |
36 | |
37 | /* Apple has powerbooks which have the keyboard with different Product IDs */ | |
38 | #define APPLE_VENDOR_ID 0x05AC | |
39 | ||
e1e02c9f MH |
40 | /* These names come from Info.plist in AppleUSBTrackpad.kext */ |
41 | #define GEYSER_ANSI_PRODUCT_ID 0x0214 | |
42 | #define GEYSER_ISO_PRODUCT_ID 0x0215 | |
43 | #define GEYSER_JIS_PRODUCT_ID 0x0216 | |
44 | ||
9effa978 NB |
45 | /* MacBook devices */ |
46 | #define GEYSER3_ANSI_PRODUCT_ID 0x0217 | |
47 | #define GEYSER3_ISO_PRODUCT_ID 0x0218 | |
48 | #define GEYSER3_JIS_PRODUCT_ID 0x0219 | |
49 | ||
f7214ff4 | 50 | #define ATP_DEVICE(prod) \ |
c5b7c7c3 | 51 | .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \ |
f7214ff4 SP |
52 | USB_DEVICE_ID_MATCH_INT_CLASS | \ |
53 | USB_DEVICE_ID_MATCH_INT_PROTOCOL, \ | |
54 | .idVendor = APPLE_VENDOR_ID, \ | |
55 | .idProduct = (prod), \ | |
56 | .bInterfaceClass = 0x03, \ | |
57 | .bInterfaceProtocol = 0x02 | |
58 | ||
59 | /* table of devices that work with this driver */ | |
60 | static struct usb_device_id atp_table [] = { | |
61 | { ATP_DEVICE(0x020E) }, | |
62 | { ATP_DEVICE(0x020F) }, | |
63 | { ATP_DEVICE(0x030A) }, | |
64 | { ATP_DEVICE(0x030B) }, | |
e1e02c9f MH |
65 | |
66 | /* PowerBooks Oct 2005 */ | |
67 | { ATP_DEVICE(GEYSER_ANSI_PRODUCT_ID) }, | |
68 | { ATP_DEVICE(GEYSER_ISO_PRODUCT_ID) }, | |
69 | { ATP_DEVICE(GEYSER_JIS_PRODUCT_ID) }, | |
70 | ||
9effa978 NB |
71 | { ATP_DEVICE(GEYSER3_ANSI_PRODUCT_ID) }, |
72 | { ATP_DEVICE(GEYSER3_ISO_PRODUCT_ID) }, | |
73 | { ATP_DEVICE(GEYSER3_JIS_PRODUCT_ID) }, | |
74 | ||
e1e02c9f MH |
75 | /* Terminating entry */ |
76 | { } | |
f7214ff4 SP |
77 | }; |
78 | MODULE_DEVICE_TABLE (usb, atp_table); | |
79 | ||
f7214ff4 SP |
80 | /* |
81 | * number of sensors. Note that only 16 instead of 26 X (horizontal) | |
82 | * sensors exist on 12" and 15" PowerBooks. All models have 16 Y | |
83 | * (vertical) sensors. | |
84 | */ | |
85 | #define ATP_XSENSORS 26 | |
86 | #define ATP_YSENSORS 16 | |
87 | ||
88 | /* amount of fuzz this touchpad generates */ | |
89 | #define ATP_FUZZ 16 | |
90 | ||
91 | /* maximum pressure this driver will report */ | |
92 | #define ATP_PRESSURE 300 | |
93 | /* | |
94 | * multiplication factor for the X and Y coordinates. | |
95 | * We try to keep the touchpad aspect ratio while still doing only simple | |
96 | * arithmetics. | |
97 | * The factors below give coordinates like: | |
c5b7c7c3 DT |
98 | * 0 <= x < 960 on 12" and 15" Powerbooks |
99 | * 0 <= x < 1600 on 17" Powerbooks | |
100 | * 0 <= y < 646 | |
f7214ff4 SP |
101 | */ |
102 | #define ATP_XFACT 64 | |
103 | #define ATP_YFACT 43 | |
104 | ||
105 | /* | |
106 | * Threshold for the touchpad sensors. Any change less than ATP_THRESHOLD is | |
107 | * ignored. | |
108 | */ | |
109 | #define ATP_THRESHOLD 5 | |
110 | ||
9effa978 NB |
111 | /* MacBook Pro (Geyser 3) initialization constants */ |
112 | #define ATP_GEYSER3_MODE_READ_REQUEST_ID 1 | |
113 | #define ATP_GEYSER3_MODE_WRITE_REQUEST_ID 9 | |
114 | #define ATP_GEYSER3_MODE_REQUEST_VALUE 0x300 | |
115 | #define ATP_GEYSER3_MODE_REQUEST_INDEX 0 | |
116 | #define ATP_GEYSER3_MODE_VENDOR_VALUE 0x04 | |
117 | ||
f7214ff4 SP |
118 | /* Structure to hold all of our device specific stuff */ |
119 | struct atp { | |
c5b7c7c3 | 120 | char phys[64]; |
f7214ff4 SP |
121 | struct usb_device * udev; /* usb device */ |
122 | struct urb * urb; /* usb request block */ | |
123 | signed char * data; /* transferred data */ | |
124 | int open; /* non-zero if opened */ | |
c5b7c7c3 | 125 | struct input_dev *input; /* input dev */ |
f7214ff4 SP |
126 | int valid; /* are the sensors valid ? */ |
127 | int x_old; /* last reported x/y, */ | |
128 | int y_old; /* used for smoothing */ | |
129 | /* current value of the sensors */ | |
130 | signed char xy_cur[ATP_XSENSORS + ATP_YSENSORS]; | |
131 | /* last value of the sensors */ | |
132 | signed char xy_old[ATP_XSENSORS + ATP_YSENSORS]; | |
133 | /* accumulated sensors */ | |
134 | int xy_acc[ATP_XSENSORS + ATP_YSENSORS]; | |
e1e02c9f MH |
135 | int overflowwarn; /* overflow warning printed? */ |
136 | int datalen; /* size of an USB urb transfer */ | |
f7214ff4 SP |
137 | }; |
138 | ||
139 | #define dbg_dump(msg, tab) \ | |
140 | if (debug > 1) { \ | |
141 | int i; \ | |
142 | printk("appletouch: %s %lld", msg, (long long)jiffies); \ | |
143 | for (i = 0; i < ATP_XSENSORS + ATP_YSENSORS; i++) \ | |
c5b7c7c3 DT |
144 | printk(" %02x", tab[i]); \ |
145 | printk("\n"); \ | |
f7214ff4 SP |
146 | } |
147 | ||
c5b7c7c3 | 148 | #define dprintk(format, a...) \ |
f7214ff4 SP |
149 | do { \ |
150 | if (debug) printk(format, ##a); \ | |
151 | } while (0) | |
152 | ||
e1e02c9f | 153 | MODULE_AUTHOR("Johannes Berg, Stelian Pop, Frank Arnold, Michael Hanselmann"); |
f7214ff4 SP |
154 | MODULE_DESCRIPTION("Apple PowerBooks USB touchpad driver"); |
155 | MODULE_LICENSE("GPL"); | |
156 | ||
157 | static int debug = 1; | |
158 | module_param(debug, int, 0644); | |
159 | MODULE_PARM_DESC(debug, "Activate debugging output"); | |
160 | ||
e1e02c9f MH |
161 | /* Checks if the device a Geyser 2 (ANSI, ISO, JIS) */ |
162 | static inline int atp_is_geyser_2(struct atp *dev) | |
163 | { | |
9effa978 | 164 | u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct); |
e1e02c9f MH |
165 | |
166 | return (productId == GEYSER_ANSI_PRODUCT_ID) || | |
167 | (productId == GEYSER_ISO_PRODUCT_ID) || | |
168 | (productId == GEYSER_JIS_PRODUCT_ID); | |
169 | } | |
170 | ||
9effa978 NB |
171 | static inline int atp_is_geyser_3(struct atp *dev) |
172 | { | |
173 | u16 productId = le16_to_cpu(dev->udev->descriptor.idProduct); | |
174 | ||
175 | return (productId == GEYSER3_ANSI_PRODUCT_ID) || | |
176 | (productId == GEYSER3_ISO_PRODUCT_ID) || | |
177 | (productId == GEYSER3_JIS_PRODUCT_ID); | |
178 | } | |
179 | ||
f7214ff4 SP |
180 | static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact, |
181 | int *z, int *fingers) | |
182 | { | |
183 | int i; | |
184 | /* values to calculate mean */ | |
185 | int pcum = 0, psum = 0; | |
186 | ||
187 | *fingers = 0; | |
188 | ||
189 | for (i = 0; i < nb_sensors; i++) { | |
190 | if (xy_sensors[i] < ATP_THRESHOLD) | |
191 | continue; | |
192 | if ((i - 1 < 0) || (xy_sensors[i - 1] < ATP_THRESHOLD)) | |
193 | (*fingers)++; | |
194 | pcum += xy_sensors[i] * i; | |
195 | psum += xy_sensors[i]; | |
196 | } | |
197 | ||
198 | if (psum > 0) { | |
199 | *z = psum; | |
200 | return pcum * fact / psum; | |
201 | } | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
206 | static inline void atp_report_fingers(struct input_dev *input, int fingers) | |
207 | { | |
208 | input_report_key(input, BTN_TOOL_FINGER, fingers == 1); | |
209 | input_report_key(input, BTN_TOOL_DOUBLETAP, fingers == 2); | |
210 | input_report_key(input, BTN_TOOL_TRIPLETAP, fingers > 2); | |
211 | } | |
212 | ||
213 | static void atp_complete(struct urb* urb, struct pt_regs* regs) | |
214 | { | |
215 | int x, y, x_z, y_z, x_f, y_f; | |
e1e02c9f | 216 | int retval, i, j; |
f7214ff4 SP |
217 | struct atp *dev = urb->context; |
218 | ||
219 | switch (urb->status) { | |
220 | case 0: | |
221 | /* success */ | |
222 | break; | |
e1e02c9f MH |
223 | case -EOVERFLOW: |
224 | if(!dev->overflowwarn) { | |
225 | printk("appletouch: OVERFLOW with data " | |
226 | "length %d, actual length is %d\n", | |
227 | dev->datalen, dev->urb->actual_length); | |
228 | dev->overflowwarn = 1; | |
229 | } | |
f7214ff4 SP |
230 | case -ECONNRESET: |
231 | case -ENOENT: | |
232 | case -ESHUTDOWN: | |
233 | /* This urb is terminated, clean up */ | |
234 | dbg("%s - urb shutting down with status: %d", | |
235 | __FUNCTION__, urb->status); | |
236 | return; | |
237 | default: | |
238 | dbg("%s - nonzero urb status received: %d", | |
239 | __FUNCTION__, urb->status); | |
240 | goto exit; | |
241 | } | |
242 | ||
243 | /* drop incomplete datasets */ | |
e1e02c9f | 244 | if (dev->urb->actual_length != dev->datalen) { |
9effa978 NB |
245 | dprintk("appletouch: incomplete data package" |
246 | " (first byte: %d, length: %d).\n", | |
247 | dev->data[0], dev->urb->actual_length); | |
f7214ff4 SP |
248 | goto exit; |
249 | } | |
250 | ||
251 | /* reorder the sensors values */ | |
9effa978 NB |
252 | if (atp_is_geyser_3(dev)) { |
253 | memset(dev->xy_cur, 0, sizeof(dev->xy_cur)); | |
254 | ||
255 | /* | |
256 | * The values are laid out like this: | |
257 | * -, Y1, Y2, -, Y3, Y4, -, ..., -, X1, X2, -, X3, X4, ... | |
258 | * '-' is an unused value. | |
259 | */ | |
260 | ||
261 | /* read X values */ | |
262 | for (i = 0, j = 19; i < 20; i += 2, j += 3) { | |
263 | dev->xy_cur[i] = dev->data[j + 1]; | |
264 | dev->xy_cur[i + 1] = dev->data[j + 2]; | |
265 | } | |
266 | /* read Y values */ | |
267 | for (i = 0, j = 1; i < 9; i += 2, j += 3) { | |
268 | dev->xy_cur[ATP_XSENSORS + i] = dev->data[j + 1]; | |
269 | dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 2]; | |
270 | } | |
271 | } else if (atp_is_geyser_2(dev)) { | |
e1e02c9f MH |
272 | memset(dev->xy_cur, 0, sizeof(dev->xy_cur)); |
273 | ||
274 | /* | |
275 | * The values are laid out like this: | |
276 | * Y1, Y2, -, Y3, Y4, -, ..., X1, X2, -, X3, X4, -, ... | |
277 | * '-' is an unused value. | |
278 | */ | |
279 | ||
280 | /* read X values */ | |
281 | for (i = 0, j = 19; i < 20; i += 2, j += 3) { | |
282 | dev->xy_cur[i] = dev->data[j]; | |
283 | dev->xy_cur[i + 1] = dev->data[j + 1]; | |
284 | } | |
285 | ||
286 | /* read Y values */ | |
287 | for (i = 0, j = 1; i < 9; i += 2, j += 3) { | |
288 | dev->xy_cur[ATP_XSENSORS + i] = dev->data[j]; | |
289 | dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 1]; | |
290 | } | |
291 | } else { | |
292 | for (i = 0; i < 8; i++) { | |
293 | /* X values */ | |
294 | dev->xy_cur[i ] = dev->data[5 * i + 2]; | |
295 | dev->xy_cur[i + 8] = dev->data[5 * i + 4]; | |
296 | dev->xy_cur[i + 16] = dev->data[5 * i + 42]; | |
297 | if (i < 2) | |
298 | dev->xy_cur[i + 24] = dev->data[5 * i + 44]; | |
299 | ||
300 | /* Y values */ | |
301 | dev->xy_cur[i + 26] = dev->data[5 * i + 1]; | |
302 | dev->xy_cur[i + 34] = dev->data[5 * i + 3]; | |
303 | } | |
f7214ff4 SP |
304 | } |
305 | ||
306 | dbg_dump("sample", dev->xy_cur); | |
307 | ||
308 | if (!dev->valid) { | |
309 | /* first sample */ | |
310 | dev->valid = 1; | |
311 | dev->x_old = dev->y_old = -1; | |
312 | memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old)); | |
313 | ||
9effa978 NB |
314 | if (atp_is_geyser_3(dev)) /* No 17" Macbooks (yet) */ |
315 | goto exit; | |
316 | ||
e1e02c9f MH |
317 | /* 17" Powerbooks have extra X sensors */ |
318 | for (i = (atp_is_geyser_2(dev)?15:16); i < ATP_XSENSORS; i++) { | |
319 | if (!dev->xy_cur[i]) continue; | |
320 | ||
321 | printk("appletouch: 17\" model detected.\n"); | |
322 | if(atp_is_geyser_2(dev)) | |
323 | input_set_abs_params(dev->input, ABS_X, 0, | |
324 | (20 - 1) * | |
325 | ATP_XFACT - 1, | |
326 | ATP_FUZZ, 0); | |
327 | else | |
c5b7c7c3 DT |
328 | input_set_abs_params(dev->input, ABS_X, 0, |
329 | (ATP_XSENSORS - 1) * | |
f7214ff4 SP |
330 | ATP_XFACT - 1, |
331 | ATP_FUZZ, 0); | |
e1e02c9f MH |
332 | |
333 | break; | |
334 | } | |
f7214ff4 SP |
335 | |
336 | goto exit; | |
337 | } | |
338 | ||
339 | for (i = 0; i < ATP_XSENSORS + ATP_YSENSORS; i++) { | |
340 | /* accumulate the change */ | |
341 | signed char change = dev->xy_old[i] - dev->xy_cur[i]; | |
342 | dev->xy_acc[i] -= change; | |
343 | ||
344 | /* prevent down drifting */ | |
345 | if (dev->xy_acc[i] < 0) | |
346 | dev->xy_acc[i] = 0; | |
347 | } | |
348 | ||
349 | memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old)); | |
350 | ||
351 | dbg_dump("accumulator", dev->xy_acc); | |
352 | ||
353 | x = atp_calculate_abs(dev->xy_acc, ATP_XSENSORS, | |
354 | ATP_XFACT, &x_z, &x_f); | |
355 | y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS, | |
356 | ATP_YFACT, &y_z, &y_f); | |
357 | ||
358 | if (x && y) { | |
359 | if (dev->x_old != -1) { | |
360 | x = (dev->x_old * 3 + x) >> 2; | |
361 | y = (dev->y_old * 3 + y) >> 2; | |
362 | dev->x_old = x; | |
363 | dev->y_old = y; | |
364 | ||
365 | if (debug > 1) | |
366 | printk("appletouch: X: %3d Y: %3d " | |
367 | "Xz: %3d Yz: %3d\n", | |
368 | x, y, x_z, y_z); | |
369 | ||
c5b7c7c3 DT |
370 | input_report_key(dev->input, BTN_TOUCH, 1); |
371 | input_report_abs(dev->input, ABS_X, x); | |
372 | input_report_abs(dev->input, ABS_Y, y); | |
373 | input_report_abs(dev->input, ABS_PRESSURE, | |
f7214ff4 | 374 | min(ATP_PRESSURE, x_z + y_z)); |
c5b7c7c3 | 375 | atp_report_fingers(dev->input, max(x_f, y_f)); |
f7214ff4 SP |
376 | } |
377 | dev->x_old = x; | |
378 | dev->y_old = y; | |
379 | } | |
380 | else if (!x && !y) { | |
381 | ||
382 | dev->x_old = dev->y_old = -1; | |
c5b7c7c3 DT |
383 | input_report_key(dev->input, BTN_TOUCH, 0); |
384 | input_report_abs(dev->input, ABS_PRESSURE, 0); | |
385 | atp_report_fingers(dev->input, 0); | |
f7214ff4 SP |
386 | |
387 | /* reset the accumulator on release */ | |
388 | memset(dev->xy_acc, 0, sizeof(dev->xy_acc)); | |
389 | } | |
390 | ||
e1e02c9f MH |
391 | input_report_key(dev->input, BTN_LEFT, |
392 | !!dev->data[dev->datalen - 1]); | |
f7214ff4 | 393 | |
c5b7c7c3 | 394 | input_sync(dev->input); |
f7214ff4 SP |
395 | |
396 | exit: | |
397 | retval = usb_submit_urb(dev->urb, GFP_ATOMIC); | |
398 | if (retval) { | |
399 | err("%s - usb_submit_urb failed with result %d", | |
400 | __FUNCTION__, retval); | |
401 | } | |
402 | } | |
403 | ||
404 | static int atp_open(struct input_dev *input) | |
405 | { | |
406 | struct atp *dev = input->private; | |
407 | ||
408 | if (usb_submit_urb(dev->urb, GFP_ATOMIC)) | |
409 | return -EIO; | |
410 | ||
411 | dev->open = 1; | |
412 | return 0; | |
413 | } | |
414 | ||
415 | static void atp_close(struct input_dev *input) | |
416 | { | |
417 | struct atp *dev = input->private; | |
418 | ||
419 | usb_kill_urb(dev->urb); | |
420 | dev->open = 0; | |
421 | } | |
422 | ||
423 | static int atp_probe(struct usb_interface *iface, const struct usb_device_id *id) | |
424 | { | |
c5b7c7c3 DT |
425 | struct atp *dev; |
426 | struct input_dev *input_dev; | |
427 | struct usb_device *udev = interface_to_usbdev(iface); | |
f7214ff4 SP |
428 | struct usb_host_interface *iface_desc; |
429 | struct usb_endpoint_descriptor *endpoint; | |
430 | int int_in_endpointAddr = 0; | |
431 | int i, retval = -ENOMEM; | |
432 | ||
f7214ff4 SP |
433 | |
434 | /* set up the endpoint information */ | |
435 | /* use only the first interrupt-in endpoint */ | |
436 | iface_desc = iface->cur_altsetting; | |
437 | for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { | |
438 | endpoint = &iface_desc->endpoint[i].desc; | |
97b107ca | 439 | if (!int_in_endpointAddr && usb_endpoint_is_int_in(endpoint)) { |
f7214ff4 SP |
440 | /* we found an interrupt in endpoint */ |
441 | int_in_endpointAddr = endpoint->bEndpointAddress; | |
442 | break; | |
443 | } | |
444 | } | |
445 | if (!int_in_endpointAddr) { | |
f7214ff4 | 446 | err("Could not find int-in endpoint"); |
c5b7c7c3 | 447 | return -EIO; |
f7214ff4 SP |
448 | } |
449 | ||
c5b7c7c3 DT |
450 | /* allocate memory for our device state and initialize it */ |
451 | dev = kzalloc(sizeof(struct atp), GFP_KERNEL); | |
452 | input_dev = input_allocate_device(); | |
453 | if (!dev || !input_dev) { | |
454 | err("Out of memory"); | |
455 | goto err_free_devs; | |
456 | } | |
457 | ||
458 | dev->udev = udev; | |
459 | dev->input = input_dev; | |
e1e02c9f | 460 | dev->overflowwarn = 0; |
9effa978 NB |
461 | if (atp_is_geyser_3(dev)) |
462 | dev->datalen = 64; | |
463 | else if (atp_is_geyser_2(dev)) | |
464 | dev->datalen = 64; | |
465 | else | |
466 | dev->datalen = 81; | |
467 | ||
468 | if (atp_is_geyser_3(dev)) { | |
469 | /* | |
470 | * By default Geyser 3 device sends standard USB HID mouse | |
471 | * packets (Report ID 2). This code changes device mode, so it | |
472 | * sends raw sensor reports (Report ID 5). | |
473 | */ | |
474 | char data[8]; | |
475 | int size; | |
476 | ||
477 | size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), | |
478 | ATP_GEYSER3_MODE_READ_REQUEST_ID, | |
479 | USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
480 | ATP_GEYSER3_MODE_REQUEST_VALUE, | |
481 | ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000); | |
482 | ||
483 | if (size != 8) { | |
484 | err("Could not do mode read request from device" | |
485 | " (Geyser 3 mode)"); | |
486 | goto err_free_devs; | |
487 | } | |
488 | ||
489 | /* Apply the mode switch */ | |
490 | data[0] = ATP_GEYSER3_MODE_VENDOR_VALUE; | |
491 | ||
492 | size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
493 | ATP_GEYSER3_MODE_WRITE_REQUEST_ID, | |
494 | USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
495 | ATP_GEYSER3_MODE_REQUEST_VALUE, | |
496 | ATP_GEYSER3_MODE_REQUEST_INDEX, &data, 8, 5000); | |
497 | ||
498 | if (size != 8) { | |
499 | err("Could not do mode write request to device" | |
500 | " (Geyser 3 mode)"); | |
501 | goto err_free_devs; | |
502 | } | |
503 | printk("appletouch Geyser 3 inited.\n"); | |
504 | } | |
f7214ff4 SP |
505 | |
506 | dev->urb = usb_alloc_urb(0, GFP_KERNEL); | |
507 | if (!dev->urb) { | |
508 | retval = -ENOMEM; | |
c5b7c7c3 | 509 | goto err_free_devs; |
f7214ff4 | 510 | } |
c5b7c7c3 | 511 | |
e1e02c9f | 512 | dev->data = usb_buffer_alloc(dev->udev, dev->datalen, GFP_KERNEL, |
f7214ff4 SP |
513 | &dev->urb->transfer_dma); |
514 | if (!dev->data) { | |
515 | retval = -ENOMEM; | |
c5b7c7c3 | 516 | goto err_free_urb; |
f7214ff4 | 517 | } |
c5b7c7c3 DT |
518 | |
519 | usb_fill_int_urb(dev->urb, udev, | |
520 | usb_rcvintpipe(udev, int_in_endpointAddr), | |
e1e02c9f | 521 | dev->data, dev->datalen, atp_complete, dev, 1); |
f7214ff4 | 522 | |
c5b7c7c3 DT |
523 | usb_make_path(udev, dev->phys, sizeof(dev->phys)); |
524 | strlcat(dev->phys, "/input0", sizeof(dev->phys)); | |
525 | ||
526 | input_dev->name = "appletouch"; | |
527 | input_dev->phys = dev->phys; | |
528 | usb_to_input_id(dev->udev, &input_dev->id); | |
529 | input_dev->cdev.dev = &iface->dev; | |
f7214ff4 | 530 | |
c5b7c7c3 DT |
531 | input_dev->private = dev; |
532 | input_dev->open = atp_open; | |
533 | input_dev->close = atp_close; | |
f7214ff4 | 534 | |
c5b7c7c3 | 535 | set_bit(EV_ABS, input_dev->evbit); |
f7214ff4 | 536 | |
9effa978 NB |
537 | if (atp_is_geyser_3(dev)) { |
538 | /* | |
539 | * MacBook have 20 X sensors, 10 Y sensors | |
540 | */ | |
541 | input_set_abs_params(input_dev, ABS_X, 0, | |
542 | ((20 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0); | |
543 | input_set_abs_params(input_dev, ABS_Y, 0, | |
544 | ((10 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0); | |
545 | } else if (atp_is_geyser_2(dev)) { | |
e1e02c9f MH |
546 | /* |
547 | * Oct 2005 15" PowerBooks have 15 X sensors, 17" are detected | |
548 | * later. | |
549 | */ | |
550 | input_set_abs_params(input_dev, ABS_X, 0, | |
551 | ((15 - 1) * ATP_XFACT) - 1, ATP_FUZZ, 0); | |
552 | input_set_abs_params(input_dev, ABS_Y, 0, | |
553 | ((9 - 1) * ATP_YFACT) - 1, ATP_FUZZ, 0); | |
554 | } else { | |
555 | /* | |
556 | * 12" and 15" Powerbooks only have 16 x sensors, | |
557 | * 17" models are detected later. | |
558 | */ | |
559 | input_set_abs_params(input_dev, ABS_X, 0, | |
560 | (16 - 1) * ATP_XFACT - 1, ATP_FUZZ, 0); | |
561 | input_set_abs_params(input_dev, ABS_Y, 0, | |
562 | (ATP_YSENSORS - 1) * ATP_YFACT - 1, ATP_FUZZ, 0); | |
563 | } | |
c5b7c7c3 | 564 | input_set_abs_params(input_dev, ABS_PRESSURE, 0, ATP_PRESSURE, 0, 0); |
f7214ff4 | 565 | |
c5b7c7c3 DT |
566 | set_bit(EV_KEY, input_dev->evbit); |
567 | set_bit(BTN_TOUCH, input_dev->keybit); | |
568 | set_bit(BTN_TOOL_FINGER, input_dev->keybit); | |
569 | set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit); | |
570 | set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit); | |
571 | set_bit(BTN_LEFT, input_dev->keybit); | |
f7214ff4 | 572 | |
c5b7c7c3 | 573 | input_register_device(dev->input); |
f7214ff4 | 574 | |
c5b7c7c3 DT |
575 | /* save our data pointer in this interface device */ |
576 | usb_set_intfdata(iface, dev); | |
f7214ff4 SP |
577 | |
578 | return 0; | |
579 | ||
c5b7c7c3 | 580 | err_free_urb: |
f7214ff4 | 581 | usb_free_urb(dev->urb); |
c5b7c7c3 | 582 | err_free_devs: |
f7214ff4 | 583 | usb_set_intfdata(iface, NULL); |
f7214ff4 | 584 | kfree(dev); |
c5b7c7c3 | 585 | input_free_device(input_dev); |
f7214ff4 SP |
586 | return retval; |
587 | } | |
588 | ||
589 | static void atp_disconnect(struct usb_interface *iface) | |
590 | { | |
591 | struct atp *dev = usb_get_intfdata(iface); | |
592 | ||
593 | usb_set_intfdata(iface, NULL); | |
594 | if (dev) { | |
595 | usb_kill_urb(dev->urb); | |
c5b7c7c3 | 596 | input_unregister_device(dev->input); |
e1e02c9f | 597 | usb_buffer_free(dev->udev, dev->datalen, |
f7214ff4 | 598 | dev->data, dev->urb->transfer_dma); |
7af569ab | 599 | usb_free_urb(dev->urb); |
f7214ff4 SP |
600 | kfree(dev); |
601 | } | |
602 | printk(KERN_INFO "input: appletouch disconnected\n"); | |
603 | } | |
604 | ||
605 | static int atp_suspend(struct usb_interface *iface, pm_message_t message) | |
606 | { | |
607 | struct atp *dev = usb_get_intfdata(iface); | |
608 | usb_kill_urb(dev->urb); | |
609 | dev->valid = 0; | |
610 | return 0; | |
611 | } | |
612 | ||
613 | static int atp_resume(struct usb_interface *iface) | |
614 | { | |
615 | struct atp *dev = usb_get_intfdata(iface); | |
616 | if (dev->open && usb_submit_urb(dev->urb, GFP_ATOMIC)) | |
617 | return -EIO; | |
618 | ||
619 | return 0; | |
620 | } | |
621 | ||
622 | static struct usb_driver atp_driver = { | |
f7214ff4 SP |
623 | .name = "appletouch", |
624 | .probe = atp_probe, | |
625 | .disconnect = atp_disconnect, | |
626 | .suspend = atp_suspend, | |
627 | .resume = atp_resume, | |
628 | .id_table = atp_table, | |
629 | }; | |
630 | ||
631 | static int __init atp_init(void) | |
632 | { | |
633 | return usb_register(&atp_driver); | |
634 | } | |
635 | ||
636 | static void __exit atp_exit(void) | |
637 | { | |
638 | usb_deregister(&atp_driver); | |
639 | } | |
640 | ||
641 | module_init(atp_init); | |
642 | module_exit(atp_exit); |