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sysfs: Fail bin file mmap if vma close is implemented.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / usb / caiaq / input.c
blobdcb620796d9ef5c14ba7f52ab3686b1ae0c1969a
1 /*
2 * Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19 #include <linux/gfp.h>
20 #include <linux/init.h>
21 #include <linux/usb.h>
22 #include <linux/usb/input.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25
26 #include "device.h"
27 #include "input.h"
28
29 static unsigned short keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
30 static unsigned short keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
31 KEY_5, KEY_6, KEY_7 };
32 static unsigned short keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4,
33 KEY_5, KEY_6, KEY_7, KEY_5, KEY_6 };
34
35 static unsigned short keycode_kore[] = {
36 KEY_FN_F1, /* "menu" */
37 KEY_FN_F7, /* "lcd backlight */
38 KEY_FN_F2, /* "control" */
39 KEY_FN_F3, /* "enter" */
40 KEY_FN_F4, /* "view" */
41 KEY_FN_F5, /* "esc" */
42 KEY_FN_F6, /* "sound" */
43 KEY_FN_F8, /* array spacer, never triggered. */
44 KEY_RIGHT,
45 KEY_DOWN,
46 KEY_UP,
47 KEY_LEFT,
48 KEY_SOUND, /* "listen" */
49 KEY_RECORD,
50 KEY_PLAYPAUSE,
51 KEY_STOP,
52 BTN_4, /* 8 softkeys */
53 BTN_3,
54 BTN_2,
55 BTN_1,
56 BTN_8,
57 BTN_7,
58 BTN_6,
59 BTN_5,
60 KEY_BRL_DOT4, /* touch sensitive knobs */
61 KEY_BRL_DOT3,
62 KEY_BRL_DOT2,
63 KEY_BRL_DOT1,
64 KEY_BRL_DOT8,
65 KEY_BRL_DOT7,
66 KEY_BRL_DOT6,
67 KEY_BRL_DOT5
68 };
69
70 #define KONTROLX1_INPUTS 40
71
72 #define DEG90 (range / 2)
73 #define DEG180 (range)
74 #define DEG270 (DEG90 + DEG180)
75 #define DEG360 (DEG180 * 2)
76 #define HIGH_PEAK (268)
77 #define LOW_PEAK (-7)
78
79 /* some of these devices have endless rotation potentiometers
80 * built in which use two tapers, 90 degrees phase shifted.
81 * this algorithm decodes them to one single value, ranging
82 * from 0 to 999 */
83 static unsigned int decode_erp(unsigned char a, unsigned char b)
84 {
85 int weight_a, weight_b;
86 int pos_a, pos_b;
87 int ret;
88 int range = HIGH_PEAK - LOW_PEAK;
89 int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
90
91 weight_b = abs(mid_value - a) - (range / 2 - 100) / 2;
92
93 if (weight_b < 0)
94 weight_b = 0;
95
96 if (weight_b > 100)
97 weight_b = 100;
98
99 weight_a = 100 - weight_b;
100
101 if (a < mid_value) {
102 /* 0..90 and 270..360 degrees */
103 pos_b = b - LOW_PEAK + DEG270;
104 if (pos_b >= DEG360)
105 pos_b -= DEG360;
106 } else
107 /* 90..270 degrees */
108 pos_b = HIGH_PEAK - b + DEG90;
109
110
111 if (b > mid_value)
112 /* 0..180 degrees */
113 pos_a = a - LOW_PEAK;
114 else
115 /* 180..360 degrees */
116 pos_a = HIGH_PEAK - a + DEG180;
117
118 /* interpolate both slider values, depending on weight factors */
119 /* 0..99 x DEG360 */
120 ret = pos_a * weight_a + pos_b * weight_b;
121
122 /* normalize to 0..999 */
123 ret *= 10;
124 ret /= DEG360;
125
126 if (ret < 0)
127 ret += 1000;
128
129 if (ret >= 1000)
130 ret -= 1000;
131
132 return ret;
133 }
134
135 #undef DEG90
136 #undef DEG180
137 #undef DEG270
138 #undef DEG360
139 #undef HIGH_PEAK
140 #undef LOW_PEAK
141
142
143 static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
144 const unsigned char *buf,
145 unsigned int len)
146 {
147 struct input_dev *input_dev = dev->input_dev;
148
149 switch (dev->chip.usb_id) {
150 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
151 input_report_abs(input_dev, ABS_X, (buf[4] << 8) | buf[5]);
152 input_report_abs(input_dev, ABS_Y, (buf[0] << 8) | buf[1]);
153 input_report_abs(input_dev, ABS_Z, (buf[2] << 8) | buf[3]);
154 input_sync(input_dev);
155 break;
156 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
157 input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
158 input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
159 input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
160 input_sync(input_dev);
161 break;
162 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
163 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
164 input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
165 input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
166 input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
167 input_sync(input_dev);
168 break;
169 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
170 input_report_abs(input_dev, ABS_HAT0X, (buf[8] << 8) | buf[9]);
171 input_report_abs(input_dev, ABS_HAT0Y, (buf[4] << 8) | buf[5]);
172 input_report_abs(input_dev, ABS_HAT1X, (buf[12] << 8) | buf[13]);
173 input_report_abs(input_dev, ABS_HAT1Y, (buf[2] << 8) | buf[3]);
174 input_report_abs(input_dev, ABS_HAT2X, (buf[14] << 8) | buf[15]);
175 input_report_abs(input_dev, ABS_HAT2Y, (buf[0] << 8) | buf[1]);
176 input_report_abs(input_dev, ABS_HAT3X, (buf[10] << 8) | buf[11]);
177 input_report_abs(input_dev, ABS_HAT3Y, (buf[6] << 8) | buf[7]);
178 input_sync(input_dev);
179 break;
180 }
181 }
182
183 static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
184 const char *buf, unsigned int len)
185 {
186 struct input_dev *input_dev = dev->input_dev;
187 int i;
188
189 switch (dev->chip.usb_id) {
190 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
191 i = decode_erp(buf[0], buf[1]);
192 input_report_abs(input_dev, ABS_X, i);
193 input_sync(input_dev);
194 break;
195 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
196 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
197 i = decode_erp(buf[7], buf[5]);
198 input_report_abs(input_dev, ABS_HAT0X, i);
199 i = decode_erp(buf[12], buf[14]);
200 input_report_abs(input_dev, ABS_HAT0Y, i);
201 i = decode_erp(buf[15], buf[13]);
202 input_report_abs(input_dev, ABS_HAT1X, i);
203 i = decode_erp(buf[0], buf[2]);
204 input_report_abs(input_dev, ABS_HAT1Y, i);
205 i = decode_erp(buf[3], buf[1]);
206 input_report_abs(input_dev, ABS_HAT2X, i);
207 i = decode_erp(buf[8], buf[10]);
208 input_report_abs(input_dev, ABS_HAT2Y, i);
209 i = decode_erp(buf[11], buf[9]);
210 input_report_abs(input_dev, ABS_HAT3X, i);
211 i = decode_erp(buf[4], buf[6]);
212 input_report_abs(input_dev, ABS_HAT3Y, i);
213 input_sync(input_dev);
214 break;
215 }
216 }
217
218 static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
219 unsigned char *buf, unsigned int len)
220 {
221 struct input_dev *input_dev = dev->input_dev;
222 unsigned short *keycode = input_dev->keycode;
223 int i;
224
225 if (!keycode)
226 return;
227
228 if (input_dev->id.product == USB_PID_RIGKONTROL2)
229 for (i = 0; i < len; i++)
230 buf[i] = ~buf[i];
231
232 for (i = 0; i < input_dev->keycodemax && i < len * 8; i++)
233 input_report_key(input_dev, keycode[i],
234 buf[i / 8] & (1 << (i % 8)));
235
236 switch (dev->chip.usb_id) {
237 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
238 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
239 input_report_abs(dev->input_dev, ABS_MISC, 255 - buf[4]);
240 break;
241 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
242 /* rotary encoders */
243 input_report_abs(dev->input_dev, ABS_X, buf[5] & 0xf);
244 input_report_abs(dev->input_dev, ABS_Y, buf[5] >> 4);
245 input_report_abs(dev->input_dev, ABS_Z, buf[6] & 0xf);
246 input_report_abs(dev->input_dev, ABS_MISC, buf[6] >> 4);
247 break;
248 }
249
250 input_sync(input_dev);
251 }
252
253 static void snd_usb_caiaq_ep4_reply_dispatch(struct urb *urb)
254 {
255 struct snd_usb_caiaqdev *dev = urb->context;
256 unsigned char *buf = urb->transfer_buffer;
257 int ret;
258
259 if (urb->status || !dev || urb != dev->ep4_in_urb)
260 return;
261
262 if (urb->actual_length < 24)
263 goto requeue;
264
265 switch (dev->chip.usb_id) {
266 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
267 if (buf[0] & 0x3)
268 snd_caiaq_input_read_io(dev, buf + 1, 7);
269
270 if (buf[0] & 0x4)
271 snd_caiaq_input_read_analog(dev, buf + 8, 16);
272
273 break;
274 }
275
276 requeue:
277 dev->ep4_in_urb->actual_length = 0;
278 ret = usb_submit_urb(dev->ep4_in_urb, GFP_ATOMIC);
279 if (ret < 0)
280 log("unable to submit urb. OOM!?\n");
281 }
282
283 static int snd_usb_caiaq_input_open(struct input_dev *idev)
284 {
285 struct snd_usb_caiaqdev *dev = input_get_drvdata(idev);
286
287 if (!dev)
288 return -EINVAL;
289
290 switch (dev->chip.usb_id) {
291 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
292 if (usb_submit_urb(dev->ep4_in_urb, GFP_KERNEL) != 0)
293 return -EIO;
294 break;
295 }
296
297 return 0;
298 }
299
300 static void snd_usb_caiaq_input_close(struct input_dev *idev)
301 {
302 struct snd_usb_caiaqdev *dev = input_get_drvdata(idev);
303
304 if (!dev)
305 return;
306
307 switch (dev->chip.usb_id) {
308 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
309 usb_kill_urb(dev->ep4_in_urb);
310 break;
311 }
312 }
313
314 void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev,
315 char *buf,
316 unsigned int len)
317 {
318 if (!dev->input_dev || len < 1)
319 return;
320
321 switch (buf[0]) {
322 case EP1_CMD_READ_ANALOG:
323 snd_caiaq_input_read_analog(dev, buf + 1, len - 1);
324 break;
325 case EP1_CMD_READ_ERP:
326 snd_caiaq_input_read_erp(dev, buf + 1, len - 1);
327 break;
328 case EP1_CMD_READ_IO:
329 snd_caiaq_input_read_io(dev, buf + 1, len - 1);
330 break;
331 }
332 }
333
334 int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
335 {
336 struct usb_device *usb_dev = dev->chip.dev;
337 struct input_dev *input;
338 int i, ret = 0;
339
340 input = input_allocate_device();
341 if (!input)
342 return -ENOMEM;
343
344 usb_make_path(usb_dev, dev->phys, sizeof(dev->phys));
345 strlcat(dev->phys, "/input0", sizeof(dev->phys));
346
347 input->name = dev->product_name;
348 input->phys = dev->phys;
349 usb_to_input_id(usb_dev, &input->id);
350 input->dev.parent = &usb_dev->dev;
351
352 input_set_drvdata(input, dev);
353
354 switch (dev->chip.usb_id) {
355 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
356 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
357 input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
358 BIT_MASK(ABS_Z);
359 BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk2));
360 memcpy(dev->keycode, keycode_rk2, sizeof(keycode_rk2));
361 input->keycodemax = ARRAY_SIZE(keycode_rk2);
362 input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
363 input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
364 input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
365 snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
366 break;
367 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
368 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
369 input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
370 BIT_MASK(ABS_Z);
371 BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk3));
372 memcpy(dev->keycode, keycode_rk3, sizeof(keycode_rk3));
373 input->keycodemax = ARRAY_SIZE(keycode_rk3);
374 input_set_abs_params(input, ABS_X, 0, 1024, 0, 10);
375 input_set_abs_params(input, ABS_Y, 0, 1024, 0, 10);
376 input_set_abs_params(input, ABS_Z, 0, 1024, 0, 10);
377 snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
378 break;
379 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
380 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
381 input->absbit[0] = BIT_MASK(ABS_X);
382 BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_ak1));
383 memcpy(dev->keycode, keycode_ak1, sizeof(keycode_ak1));
384 input->keycodemax = ARRAY_SIZE(keycode_ak1);
385 input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
386 snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
387 break;
388 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
389 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
390 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
391 input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
392 BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
393 BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
394 BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
395 BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
396 BIT_MASK(ABS_Z);
397 input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
398 BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_kore));
399 memcpy(dev->keycode, keycode_kore, sizeof(keycode_kore));
400 input->keycodemax = ARRAY_SIZE(keycode_kore);
401 input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10);
402 input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10);
403 input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10);
404 input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10);
405 input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10);
406 input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10);
407 input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10);
408 input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10);
409 input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
410 input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
411 input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
412 input_set_abs_params(input, ABS_MISC, 0, 255, 0, 1);
413 snd_usb_caiaq_set_auto_msg(dev, 1, 10, 5);
414 break;
415 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
416 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
417 input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
418 BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
419 BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
420 BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
421 BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
422 BIT_MASK(ABS_Z);
423 input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
424 BUILD_BUG_ON(sizeof(dev->keycode) < KONTROLX1_INPUTS);
425 for (i = 0; i < KONTROLX1_INPUTS; i++)
426 dev->keycode[i] = BTN_MISC + i;
427 input->keycodemax = KONTROLX1_INPUTS;
428
429 /* analog potentiometers */
430 input_set_abs_params(input, ABS_HAT0X, 0, 4096, 0, 10);
431 input_set_abs_params(input, ABS_HAT0Y, 0, 4096, 0, 10);
432 input_set_abs_params(input, ABS_HAT1X, 0, 4096, 0, 10);
433 input_set_abs_params(input, ABS_HAT1Y, 0, 4096, 0, 10);
434 input_set_abs_params(input, ABS_HAT2X, 0, 4096, 0, 10);
435 input_set_abs_params(input, ABS_HAT2Y, 0, 4096, 0, 10);
436 input_set_abs_params(input, ABS_HAT3X, 0, 4096, 0, 10);
437 input_set_abs_params(input, ABS_HAT3Y, 0, 4096, 0, 10);
438
439 /* rotary encoders */
440 input_set_abs_params(input, ABS_X, 0, 0xf, 0, 1);
441 input_set_abs_params(input, ABS_Y, 0, 0xf, 0, 1);
442 input_set_abs_params(input, ABS_Z, 0, 0xf, 0, 1);
443 input_set_abs_params(input, ABS_MISC, 0, 0xf, 0, 1);
444
445 dev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL);
446 if (!dev->ep4_in_urb) {
447 ret = -ENOMEM;
448 goto exit_free_idev;
449 }
450
451 usb_fill_bulk_urb(dev->ep4_in_urb, usb_dev,
452 usb_rcvbulkpipe(usb_dev, 0x4),
453 dev->ep4_in_buf, EP4_BUFSIZE,
454 snd_usb_caiaq_ep4_reply_dispatch, dev);
455
456 snd_usb_caiaq_set_auto_msg(dev, 1, 10, 5);
457
458 break;
459 default:
460 /* no input methods supported on this device */
461 goto exit_free_idev;
462 }
463
464 input->open = snd_usb_caiaq_input_open;
465 input->close = snd_usb_caiaq_input_close;
466 input->keycode = dev->keycode;
467 input->keycodesize = sizeof(unsigned short);
468 for (i = 0; i < input->keycodemax; i++)
469 __set_bit(dev->keycode[i], input->keybit);
470
471 ret = input_register_device(input);
472 if (ret < 0)
473 goto exit_free_idev;
474
475 dev->input_dev = input;
476 return 0;
477
478 exit_free_idev:
479 input_free_device(input);
480 return ret;
481 }
482
483 void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev)
484 {
485 if (!dev || !dev->input_dev)
486 return;
487
488 usb_kill_urb(dev->ep4_in_urb);
489 usb_free_urb(dev->ep4_in_urb);
490 dev->ep4_in_urb = NULL;
491
492 input_unregister_device(dev->input_dev);
493 dev->input_dev = NULL;
494 }
495
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree