xref: /linux/sound/usb/caiaq/input.c (revision 1ac731c529cd4d6adbce134754b51ff7d822b145)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *   Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
4 */
5 
6 #include <linux/device.h>
7 #include <linux/gfp.h>
8 #include <linux/init.h>
9 #include <linux/usb.h>
10 #include <linux/usb/input.h>
11 #include <sound/core.h>
12 #include <sound/pcm.h>
13 
14 #include "device.h"
15 #include "input.h"
16 
17 static const unsigned short keycode_ak1[] =  { KEY_C, KEY_B, KEY_A };
18 static const unsigned short keycode_rk2[] =  { KEY_1, KEY_2, KEY_3, KEY_4,
19 					 KEY_5, KEY_6, KEY_7 };
20 static const unsigned short keycode_rk3[] =  { KEY_1, KEY_2, KEY_3, KEY_4,
21 					 KEY_5, KEY_6, KEY_7, KEY_8, KEY_9 };
22 
23 static const unsigned short keycode_kore[] = {
24 	KEY_FN_F1,      /* "menu"               */
25 	KEY_FN_F7,      /* "lcd backlight       */
26 	KEY_FN_F2,      /* "control"            */
27 	KEY_FN_F3,      /* "enter"              */
28 	KEY_FN_F4,      /* "view"               */
29 	KEY_FN_F5,      /* "esc"                */
30 	KEY_FN_F6,      /* "sound"              */
31 	KEY_FN_F8,      /* array spacer, never triggered. */
32 	KEY_RIGHT,
33 	KEY_DOWN,
34 	KEY_UP,
35 	KEY_LEFT,
36 	KEY_SOUND,      /* "listen"             */
37 	KEY_RECORD,
38 	KEY_PLAYPAUSE,
39 	KEY_STOP,
40 	BTN_4,          /* 8 softkeys */
41 	BTN_3,
42 	BTN_2,
43 	BTN_1,
44 	BTN_8,
45 	BTN_7,
46 	BTN_6,
47 	BTN_5,
48 	KEY_BRL_DOT4,   /* touch sensitive knobs */
49 	KEY_BRL_DOT3,
50 	KEY_BRL_DOT2,
51 	KEY_BRL_DOT1,
52 	KEY_BRL_DOT8,
53 	KEY_BRL_DOT7,
54 	KEY_BRL_DOT6,
55 	KEY_BRL_DOT5
56 };
57 
58 #define MASCHINE_BUTTONS   (42)
59 #define MASCHINE_BUTTON(X) ((X) + BTN_MISC)
60 #define MASCHINE_PADS      (16)
61 #define MASCHINE_PAD(X)    ((X) + ABS_PRESSURE)
62 
63 static const unsigned short keycode_maschine[] = {
64 	MASCHINE_BUTTON(40), /* mute       */
65 	MASCHINE_BUTTON(39), /* solo       */
66 	MASCHINE_BUTTON(38), /* select     */
67 	MASCHINE_BUTTON(37), /* duplicate  */
68 	MASCHINE_BUTTON(36), /* navigate   */
69 	MASCHINE_BUTTON(35), /* pad mode   */
70 	MASCHINE_BUTTON(34), /* pattern    */
71 	MASCHINE_BUTTON(33), /* scene      */
72 	KEY_RESERVED, /* spacer */
73 
74 	MASCHINE_BUTTON(30), /* rec        */
75 	MASCHINE_BUTTON(31), /* erase      */
76 	MASCHINE_BUTTON(32), /* shift      */
77 	MASCHINE_BUTTON(28), /* grid       */
78 	MASCHINE_BUTTON(27), /* >          */
79 	MASCHINE_BUTTON(26), /* <          */
80 	MASCHINE_BUTTON(25), /* restart    */
81 
82 	MASCHINE_BUTTON(21), /* E          */
83 	MASCHINE_BUTTON(22), /* F          */
84 	MASCHINE_BUTTON(23), /* G          */
85 	MASCHINE_BUTTON(24), /* H          */
86 	MASCHINE_BUTTON(20), /* D          */
87 	MASCHINE_BUTTON(19), /* C          */
88 	MASCHINE_BUTTON(18), /* B          */
89 	MASCHINE_BUTTON(17), /* A          */
90 
91 	MASCHINE_BUTTON(0),  /* control    */
92 	MASCHINE_BUTTON(2),  /* browse     */
93 	MASCHINE_BUTTON(4),  /* <          */
94 	MASCHINE_BUTTON(6),  /* snap       */
95 	MASCHINE_BUTTON(7),  /* autowrite  */
96 	MASCHINE_BUTTON(5),  /* >          */
97 	MASCHINE_BUTTON(3),  /* sampling   */
98 	MASCHINE_BUTTON(1),  /* step       */
99 
100 	MASCHINE_BUTTON(15), /* 8 softkeys */
101 	MASCHINE_BUTTON(14),
102 	MASCHINE_BUTTON(13),
103 	MASCHINE_BUTTON(12),
104 	MASCHINE_BUTTON(11),
105 	MASCHINE_BUTTON(10),
106 	MASCHINE_BUTTON(9),
107 	MASCHINE_BUTTON(8),
108 
109 	MASCHINE_BUTTON(16), /* note repeat */
110 	MASCHINE_BUTTON(29)  /* play        */
111 };
112 
113 #define KONTROLX1_INPUTS	(40)
114 #define KONTROLS4_BUTTONS	(12 * 8)
115 #define KONTROLS4_AXIS		(46)
116 
117 #define KONTROLS4_BUTTON(X)	((X) + BTN_MISC)
118 #define KONTROLS4_ABS(X)	((X) + ABS_HAT0X)
119 
120 #define DEG90		(range / 2)
121 #define DEG180		(range)
122 #define DEG270		(DEG90 + DEG180)
123 #define DEG360		(DEG180 * 2)
124 #define HIGH_PEAK	(268)
125 #define LOW_PEAK	(-7)
126 
127 /* some of these devices have endless rotation potentiometers
128  * built in which use two tapers, 90 degrees phase shifted.
129  * this algorithm decodes them to one single value, ranging
130  * from 0 to 999 */
decode_erp(unsigned char a,unsigned char b)131 static unsigned int decode_erp(unsigned char a, unsigned char b)
132 {
133 	int weight_a, weight_b;
134 	int pos_a, pos_b;
135 	int ret;
136 	int range = HIGH_PEAK - LOW_PEAK;
137 	int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
138 
139 	weight_b = abs(mid_value - a) - (range / 2 - 100) / 2;
140 
141 	if (weight_b < 0)
142 		weight_b = 0;
143 
144 	if (weight_b > 100)
145 		weight_b = 100;
146 
147 	weight_a = 100 - weight_b;
148 
149 	if (a < mid_value) {
150 		/* 0..90 and 270..360 degrees */
151 		pos_b = b - LOW_PEAK + DEG270;
152 		if (pos_b >= DEG360)
153 			pos_b -= DEG360;
154 	} else
155 		/* 90..270 degrees */
156 		pos_b = HIGH_PEAK - b + DEG90;
157 
158 
159 	if (b > mid_value)
160 		/* 0..180 degrees */
161 		pos_a = a - LOW_PEAK;
162 	else
163 		/* 180..360 degrees */
164 		pos_a = HIGH_PEAK - a + DEG180;
165 
166 	/* interpolate both slider values, depending on weight factors */
167 	/* 0..99 x DEG360 */
168 	ret = pos_a * weight_a + pos_b * weight_b;
169 
170 	/* normalize to 0..999 */
171 	ret *= 10;
172 	ret /= DEG360;
173 
174 	if (ret < 0)
175 		ret += 1000;
176 
177 	if (ret >= 1000)
178 		ret -= 1000;
179 
180 	return ret;
181 }
182 
183 #undef DEG90
184 #undef DEG180
185 #undef DEG270
186 #undef DEG360
187 #undef HIGH_PEAK
188 #undef LOW_PEAK
189 
snd_caiaq_input_report_abs(struct snd_usb_caiaqdev * cdev,int axis,const unsigned char * buf,int offset)190 static inline void snd_caiaq_input_report_abs(struct snd_usb_caiaqdev *cdev,
191 					      int axis, const unsigned char *buf,
192 					      int offset)
193 {
194 	input_report_abs(cdev->input_dev, axis,
195 			 (buf[offset * 2] << 8) | buf[offset * 2 + 1]);
196 }
197 
snd_caiaq_input_read_analog(struct snd_usb_caiaqdev * cdev,const unsigned char * buf,unsigned int len)198 static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *cdev,
199 					const unsigned char *buf,
200 					unsigned int len)
201 {
202 	struct input_dev *input_dev = cdev->input_dev;
203 
204 	switch (cdev->chip.usb_id) {
205 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
206 		snd_caiaq_input_report_abs(cdev, ABS_X, buf, 2);
207 		snd_caiaq_input_report_abs(cdev, ABS_Y, buf, 0);
208 		snd_caiaq_input_report_abs(cdev, ABS_Z, buf, 1);
209 		break;
210 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
211 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
212 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
213 		snd_caiaq_input_report_abs(cdev, ABS_X, buf, 0);
214 		snd_caiaq_input_report_abs(cdev, ABS_Y, buf, 1);
215 		snd_caiaq_input_report_abs(cdev, ABS_Z, buf, 2);
216 		break;
217 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
218 		snd_caiaq_input_report_abs(cdev, ABS_HAT0X, buf, 4);
219 		snd_caiaq_input_report_abs(cdev, ABS_HAT0Y, buf, 2);
220 		snd_caiaq_input_report_abs(cdev, ABS_HAT1X, buf, 6);
221 		snd_caiaq_input_report_abs(cdev, ABS_HAT1Y, buf, 1);
222 		snd_caiaq_input_report_abs(cdev, ABS_HAT2X, buf, 7);
223 		snd_caiaq_input_report_abs(cdev, ABS_HAT2Y, buf, 0);
224 		snd_caiaq_input_report_abs(cdev, ABS_HAT3X, buf, 5);
225 		snd_caiaq_input_report_abs(cdev, ABS_HAT3Y, buf, 3);
226 		break;
227 	}
228 
229 	input_sync(input_dev);
230 }
231 
snd_caiaq_input_read_erp(struct snd_usb_caiaqdev * cdev,const char * buf,unsigned int len)232 static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *cdev,
233 				     const char *buf, unsigned int len)
234 {
235 	struct input_dev *input_dev = cdev->input_dev;
236 	int i;
237 
238 	switch (cdev->chip.usb_id) {
239 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
240 		i = decode_erp(buf[0], buf[1]);
241 		input_report_abs(input_dev, ABS_X, i);
242 		input_sync(input_dev);
243 		break;
244 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
245 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
246 		i = decode_erp(buf[7], buf[5]);
247 		input_report_abs(input_dev, ABS_HAT0X, i);
248 		i = decode_erp(buf[12], buf[14]);
249 		input_report_abs(input_dev, ABS_HAT0Y, i);
250 		i = decode_erp(buf[15], buf[13]);
251 		input_report_abs(input_dev, ABS_HAT1X, i);
252 		i = decode_erp(buf[0], buf[2]);
253 		input_report_abs(input_dev, ABS_HAT1Y, i);
254 		i = decode_erp(buf[3], buf[1]);
255 		input_report_abs(input_dev, ABS_HAT2X, i);
256 		i = decode_erp(buf[8], buf[10]);
257 		input_report_abs(input_dev, ABS_HAT2Y, i);
258 		i = decode_erp(buf[11], buf[9]);
259 		input_report_abs(input_dev, ABS_HAT3X, i);
260 		i = decode_erp(buf[4], buf[6]);
261 		input_report_abs(input_dev, ABS_HAT3Y, i);
262 		input_sync(input_dev);
263 		break;
264 
265 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
266 		/* 4 under the left screen */
267 		input_report_abs(input_dev, ABS_HAT0X, decode_erp(buf[21], buf[20]));
268 		input_report_abs(input_dev, ABS_HAT0Y, decode_erp(buf[15], buf[14]));
269 		input_report_abs(input_dev, ABS_HAT1X, decode_erp(buf[9],  buf[8]));
270 		input_report_abs(input_dev, ABS_HAT1Y, decode_erp(buf[3],  buf[2]));
271 
272 		/* 4 under the right screen */
273 		input_report_abs(input_dev, ABS_HAT2X, decode_erp(buf[19], buf[18]));
274 		input_report_abs(input_dev, ABS_HAT2Y, decode_erp(buf[13], buf[12]));
275 		input_report_abs(input_dev, ABS_HAT3X, decode_erp(buf[7],  buf[6]));
276 		input_report_abs(input_dev, ABS_HAT3Y, decode_erp(buf[1],  buf[0]));
277 
278 		/* volume */
279 		input_report_abs(input_dev, ABS_RX, decode_erp(buf[17], buf[16]));
280 		/* tempo */
281 		input_report_abs(input_dev, ABS_RY, decode_erp(buf[11], buf[10]));
282 		/* swing */
283 		input_report_abs(input_dev, ABS_RZ, decode_erp(buf[5],  buf[4]));
284 
285 		input_sync(input_dev);
286 		break;
287 	}
288 }
289 
snd_caiaq_input_read_io(struct snd_usb_caiaqdev * cdev,unsigned char * buf,unsigned int len)290 static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *cdev,
291 				    unsigned char *buf, unsigned int len)
292 {
293 	struct input_dev *input_dev = cdev->input_dev;
294 	unsigned short *keycode = input_dev->keycode;
295 	int i;
296 
297 	if (!keycode)
298 		return;
299 
300 	if (input_dev->id.product == USB_PID_RIGKONTROL2)
301 		for (i = 0; i < len; i++)
302 			buf[i] = ~buf[i];
303 
304 	for (i = 0; i < input_dev->keycodemax && i < len * 8; i++)
305 		input_report_key(input_dev, keycode[i],
306 				 buf[i / 8] & (1 << (i % 8)));
307 
308 	switch (cdev->chip.usb_id) {
309 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
310 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
311 		input_report_abs(cdev->input_dev, ABS_MISC, 255 - buf[4]);
312 		break;
313 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
314 		/* rotary encoders */
315 		input_report_abs(cdev->input_dev, ABS_X, buf[5] & 0xf);
316 		input_report_abs(cdev->input_dev, ABS_Y, buf[5] >> 4);
317 		input_report_abs(cdev->input_dev, ABS_Z, buf[6] & 0xf);
318 		input_report_abs(cdev->input_dev, ABS_MISC, buf[6] >> 4);
319 		break;
320 	}
321 
322 	input_sync(input_dev);
323 }
324 
325 #define TKS4_MSGBLOCK_SIZE	16
326 
snd_usb_caiaq_tks4_dispatch(struct snd_usb_caiaqdev * cdev,const unsigned char * buf,unsigned int len)327 static void snd_usb_caiaq_tks4_dispatch(struct snd_usb_caiaqdev *cdev,
328 					const unsigned char *buf,
329 					unsigned int len)
330 {
331 	struct device *dev = caiaqdev_to_dev(cdev);
332 
333 	while (len) {
334 		unsigned int i, block_id = (buf[0] << 8) | buf[1];
335 
336 		switch (block_id) {
337 		case 0:
338 			/* buttons */
339 			for (i = 0; i < KONTROLS4_BUTTONS; i++)
340 				input_report_key(cdev->input_dev, KONTROLS4_BUTTON(i),
341 						 (buf[4 + (i / 8)] >> (i % 8)) & 1);
342 			break;
343 
344 		case 1:
345 			/* left wheel */
346 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(36), buf[9] | ((buf[8] & 0x3) << 8));
347 			/* right wheel */
348 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(37), buf[13] | ((buf[12] & 0x3) << 8));
349 
350 			/* rotary encoders */
351 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(38), buf[3] & 0xf);
352 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(39), buf[4] >> 4);
353 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(40), buf[4] & 0xf);
354 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(41), buf[5] >> 4);
355 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(42), buf[5] & 0xf);
356 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(43), buf[6] >> 4);
357 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(44), buf[6] & 0xf);
358 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(45), buf[7] >> 4);
359 			input_report_abs(cdev->input_dev, KONTROLS4_ABS(46), buf[7] & 0xf);
360 
361 			break;
362 		case 2:
363 			/* Volume Fader Channel D */
364 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(0), buf, 1);
365 			/* Volume Fader Channel B */
366 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(1), buf, 2);
367 			/* Volume Fader Channel A */
368 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(2), buf, 3);
369 			/* Volume Fader Channel C */
370 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(3), buf, 4);
371 			/* Loop Volume */
372 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(4), buf, 6);
373 			/* Crossfader */
374 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(7), buf, 7);
375 
376 			break;
377 
378 		case 3:
379 			/* Tempo Fader R */
380 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(6), buf, 3);
381 			/* Tempo Fader L */
382 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(5), buf, 4);
383 			/* Mic Volume */
384 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(8), buf, 6);
385 			/* Cue Mix */
386 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(9), buf, 7);
387 
388 			break;
389 
390 		case 4:
391 			/* Wheel distance sensor L */
392 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(10), buf, 1);
393 			/* Wheel distance sensor R */
394 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(11), buf, 2);
395 			/* Channel D EQ - Filter */
396 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(12), buf, 3);
397 			/* Channel D EQ - Low */
398 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(13), buf, 4);
399 			/* Channel D EQ - Mid */
400 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(14), buf, 5);
401 			/* Channel D EQ - Hi */
402 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(15), buf, 6);
403 			/* FX2 - dry/wet */
404 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(16), buf, 7);
405 
406 			break;
407 
408 		case 5:
409 			/* FX2 - 1 */
410 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(17), buf, 1);
411 			/* FX2 - 2 */
412 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(18), buf, 2);
413 			/* FX2 - 3 */
414 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(19), buf, 3);
415 			/* Channel B EQ - Filter */
416 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(20), buf, 4);
417 			/* Channel B EQ - Low */
418 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(21), buf, 5);
419 			/* Channel B EQ - Mid */
420 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(22), buf, 6);
421 			/* Channel B EQ - Hi */
422 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(23), buf, 7);
423 
424 			break;
425 
426 		case 6:
427 			/* Channel A EQ - Filter */
428 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(24), buf, 1);
429 			/* Channel A EQ - Low */
430 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(25), buf, 2);
431 			/* Channel A EQ - Mid */
432 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(26), buf, 3);
433 			/* Channel A EQ - Hi */
434 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(27), buf, 4);
435 			/* Channel C EQ - Filter */
436 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(28), buf, 5);
437 			/* Channel C EQ - Low */
438 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(29), buf, 6);
439 			/* Channel C EQ - Mid */
440 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(30), buf, 7);
441 
442 			break;
443 
444 		case 7:
445 			/* Channel C EQ - Hi */
446 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(31), buf, 1);
447 			/* FX1 - wet/dry */
448 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(32), buf, 2);
449 			/* FX1 - 1 */
450 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(33), buf, 3);
451 			/* FX1 - 2 */
452 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(34), buf, 4);
453 			/* FX1 - 3 */
454 			snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(35), buf, 5);
455 
456 			break;
457 
458 		default:
459 			dev_dbg(dev, "%s(): bogus block (id %d)\n",
460 				__func__, block_id);
461 			return;
462 		}
463 
464 		len -= TKS4_MSGBLOCK_SIZE;
465 		buf += TKS4_MSGBLOCK_SIZE;
466 	}
467 
468 	input_sync(cdev->input_dev);
469 }
470 
471 #define MASCHINE_MSGBLOCK_SIZE 2
472 
snd_usb_caiaq_maschine_dispatch(struct snd_usb_caiaqdev * cdev,const unsigned char * buf,unsigned int len)473 static void snd_usb_caiaq_maschine_dispatch(struct snd_usb_caiaqdev *cdev,
474 					const unsigned char *buf,
475 					unsigned int len)
476 {
477 	unsigned int i, pad_id;
478 	__le16 *pressure = (__le16 *) buf;
479 
480 	for (i = 0; i < MASCHINE_PADS; i++) {
481 		pad_id = le16_to_cpu(*pressure) >> 12;
482 		input_report_abs(cdev->input_dev, MASCHINE_PAD(pad_id),
483 				 le16_to_cpu(*pressure) & 0xfff);
484 		pressure++;
485 	}
486 
487 	input_sync(cdev->input_dev);
488 }
489 
snd_usb_caiaq_ep4_reply_dispatch(struct urb * urb)490 static void snd_usb_caiaq_ep4_reply_dispatch(struct urb *urb)
491 {
492 	struct snd_usb_caiaqdev *cdev = urb->context;
493 	unsigned char *buf = urb->transfer_buffer;
494 	struct device *dev = &urb->dev->dev;
495 	int ret;
496 
497 	if (urb->status || !cdev || urb != cdev->ep4_in_urb)
498 		return;
499 
500 	switch (cdev->chip.usb_id) {
501 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
502 		if (urb->actual_length < 24)
503 			goto requeue;
504 
505 		if (buf[0] & 0x3)
506 			snd_caiaq_input_read_io(cdev, buf + 1, 7);
507 
508 		if (buf[0] & 0x4)
509 			snd_caiaq_input_read_analog(cdev, buf + 8, 16);
510 
511 		break;
512 
513 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4):
514 		snd_usb_caiaq_tks4_dispatch(cdev, buf, urb->actual_length);
515 		break;
516 
517 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
518 		if (urb->actual_length < (MASCHINE_PADS * MASCHINE_MSGBLOCK_SIZE))
519 			goto requeue;
520 
521 		snd_usb_caiaq_maschine_dispatch(cdev, buf, urb->actual_length);
522 		break;
523 	}
524 
525 requeue:
526 	cdev->ep4_in_urb->actual_length = 0;
527 	ret = usb_submit_urb(cdev->ep4_in_urb, GFP_ATOMIC);
528 	if (ret < 0)
529 		dev_err(dev, "unable to submit urb. OOM!?\n");
530 }
531 
snd_usb_caiaq_input_open(struct input_dev * idev)532 static int snd_usb_caiaq_input_open(struct input_dev *idev)
533 {
534 	struct snd_usb_caiaqdev *cdev = input_get_drvdata(idev);
535 
536 	if (!cdev)
537 		return -EINVAL;
538 
539 	switch (cdev->chip.usb_id) {
540 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
541 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4):
542 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
543 		if (usb_submit_urb(cdev->ep4_in_urb, GFP_KERNEL) != 0)
544 			return -EIO;
545 		break;
546 	}
547 
548 	return 0;
549 }
550 
snd_usb_caiaq_input_close(struct input_dev * idev)551 static void snd_usb_caiaq_input_close(struct input_dev *idev)
552 {
553 	struct snd_usb_caiaqdev *cdev = input_get_drvdata(idev);
554 
555 	if (!cdev)
556 		return;
557 
558 	switch (cdev->chip.usb_id) {
559 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
560 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4):
561 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
562 		usb_kill_urb(cdev->ep4_in_urb);
563 		break;
564 	}
565 }
566 
snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev * cdev,char * buf,unsigned int len)567 void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *cdev,
568 				  char *buf,
569 				  unsigned int len)
570 {
571 	if (!cdev->input_dev || len < 1)
572 		return;
573 
574 	switch (buf[0]) {
575 	case EP1_CMD_READ_ANALOG:
576 		snd_caiaq_input_read_analog(cdev, buf + 1, len - 1);
577 		break;
578 	case EP1_CMD_READ_ERP:
579 		snd_caiaq_input_read_erp(cdev, buf + 1, len - 1);
580 		break;
581 	case EP1_CMD_READ_IO:
582 		snd_caiaq_input_read_io(cdev, buf + 1, len - 1);
583 		break;
584 	}
585 }
586 
snd_usb_caiaq_input_init(struct snd_usb_caiaqdev * cdev)587 int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *cdev)
588 {
589 	struct usb_device *usb_dev = cdev->chip.dev;
590 	struct input_dev *input;
591 	int i, ret = 0;
592 
593 	input = input_allocate_device();
594 	if (!input)
595 		return -ENOMEM;
596 
597 	usb_make_path(usb_dev, cdev->phys, sizeof(cdev->phys));
598 	strlcat(cdev->phys, "/input0", sizeof(cdev->phys));
599 
600 	input->name = cdev->product_name;
601 	input->phys = cdev->phys;
602 	usb_to_input_id(usb_dev, &input->id);
603 	input->dev.parent = &usb_dev->dev;
604 
605 	input_set_drvdata(input, cdev);
606 
607 	switch (cdev->chip.usb_id) {
608 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
609 		input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
610 		input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
611 			BIT_MASK(ABS_Z);
612 		BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_rk2));
613 		memcpy(cdev->keycode, keycode_rk2, sizeof(keycode_rk2));
614 		input->keycodemax = ARRAY_SIZE(keycode_rk2);
615 		input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
616 		input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
617 		input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
618 		snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 0);
619 		break;
620 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
621 		input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
622 		input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
623 			BIT_MASK(ABS_Z);
624 		BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_rk3));
625 		memcpy(cdev->keycode, keycode_rk3, sizeof(keycode_rk3));
626 		input->keycodemax = ARRAY_SIZE(keycode_rk3);
627 		input_set_abs_params(input, ABS_X, 0, 1024, 0, 10);
628 		input_set_abs_params(input, ABS_Y, 0, 1024, 0, 10);
629 		input_set_abs_params(input, ABS_Z, 0, 1024, 0, 10);
630 		snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 0);
631 		break;
632 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
633 		input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
634 		input->absbit[0] = BIT_MASK(ABS_X);
635 		BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_ak1));
636 		memcpy(cdev->keycode, keycode_ak1, sizeof(keycode_ak1));
637 		input->keycodemax = ARRAY_SIZE(keycode_ak1);
638 		input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
639 		snd_usb_caiaq_set_auto_msg(cdev, 1, 0, 5);
640 		break;
641 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
642 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
643 		input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
644 		input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
645 				   BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
646 				   BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
647 				   BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
648 				   BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
649 				   BIT_MASK(ABS_Z);
650 		input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
651 		BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_kore));
652 		memcpy(cdev->keycode, keycode_kore, sizeof(keycode_kore));
653 		input->keycodemax = ARRAY_SIZE(keycode_kore);
654 		input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10);
655 		input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10);
656 		input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10);
657 		input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10);
658 		input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10);
659 		input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10);
660 		input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10);
661 		input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10);
662 		input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
663 		input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
664 		input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
665 		input_set_abs_params(input, ABS_MISC, 0, 255, 0, 1);
666 		snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5);
667 		break;
668 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1):
669 		input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
670 		input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
671 				   BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
672 				   BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
673 				   BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
674 				   BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
675 				   BIT_MASK(ABS_Z);
676 		input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
677 		BUILD_BUG_ON(sizeof(cdev->keycode) < KONTROLX1_INPUTS);
678 		for (i = 0; i < KONTROLX1_INPUTS; i++)
679 			cdev->keycode[i] = BTN_MISC + i;
680 		input->keycodemax = KONTROLX1_INPUTS;
681 
682 		/* analog potentiometers */
683 		input_set_abs_params(input, ABS_HAT0X, 0, 4096, 0, 10);
684 		input_set_abs_params(input, ABS_HAT0Y, 0, 4096, 0, 10);
685 		input_set_abs_params(input, ABS_HAT1X, 0, 4096, 0, 10);
686 		input_set_abs_params(input, ABS_HAT1Y, 0, 4096, 0, 10);
687 		input_set_abs_params(input, ABS_HAT2X, 0, 4096, 0, 10);
688 		input_set_abs_params(input, ABS_HAT2Y, 0, 4096, 0, 10);
689 		input_set_abs_params(input, ABS_HAT3X, 0, 4096, 0, 10);
690 		input_set_abs_params(input, ABS_HAT3Y, 0, 4096, 0, 10);
691 
692 		/* rotary encoders */
693 		input_set_abs_params(input, ABS_X, 0, 0xf, 0, 1);
694 		input_set_abs_params(input, ABS_Y, 0, 0xf, 0, 1);
695 		input_set_abs_params(input, ABS_Z, 0, 0xf, 0, 1);
696 		input_set_abs_params(input, ABS_MISC, 0, 0xf, 0, 1);
697 
698 		cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL);
699 		if (!cdev->ep4_in_urb) {
700 			ret = -ENOMEM;
701 			goto exit_free_idev;
702 		}
703 
704 		usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev,
705 				  usb_rcvbulkpipe(usb_dev, 0x4),
706 				  cdev->ep4_in_buf, EP4_BUFSIZE,
707 				  snd_usb_caiaq_ep4_reply_dispatch, cdev);
708 		ret = usb_urb_ep_type_check(cdev->ep4_in_urb);
709 		if (ret < 0)
710 			goto exit_free_idev;
711 
712 		snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5);
713 
714 		break;
715 
716 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4):
717 		input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
718 		BUILD_BUG_ON(sizeof(cdev->keycode) < KONTROLS4_BUTTONS);
719 		for (i = 0; i < KONTROLS4_BUTTONS; i++)
720 			cdev->keycode[i] = KONTROLS4_BUTTON(i);
721 		input->keycodemax = KONTROLS4_BUTTONS;
722 
723 		for (i = 0; i < KONTROLS4_AXIS; i++) {
724 			int axis = KONTROLS4_ABS(i);
725 			input->absbit[BIT_WORD(axis)] |= BIT_MASK(axis);
726 		}
727 
728 		/* 36 analog potentiometers and faders */
729 		for (i = 0; i < 36; i++)
730 			input_set_abs_params(input, KONTROLS4_ABS(i), 0, 0xfff, 0, 10);
731 
732 		/* 2 encoder wheels */
733 		input_set_abs_params(input, KONTROLS4_ABS(36), 0, 0x3ff, 0, 1);
734 		input_set_abs_params(input, KONTROLS4_ABS(37), 0, 0x3ff, 0, 1);
735 
736 		/* 9 rotary encoders */
737 		for (i = 0; i < 9; i++)
738 			input_set_abs_params(input, KONTROLS4_ABS(38+i), 0, 0xf, 0, 1);
739 
740 		cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL);
741 		if (!cdev->ep4_in_urb) {
742 			ret = -ENOMEM;
743 			goto exit_free_idev;
744 		}
745 
746 		usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev,
747 				  usb_rcvbulkpipe(usb_dev, 0x4),
748 				  cdev->ep4_in_buf, EP4_BUFSIZE,
749 				  snd_usb_caiaq_ep4_reply_dispatch, cdev);
750 		ret = usb_urb_ep_type_check(cdev->ep4_in_urb);
751 		if (ret < 0)
752 			goto exit_free_idev;
753 
754 		snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5);
755 
756 		break;
757 
758 	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
759 		input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
760 		input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
761 			BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
762 			BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
763 			BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
764 			BIT_MASK(ABS_RX) | BIT_MASK(ABS_RY) |
765 			BIT_MASK(ABS_RZ);
766 
767 		BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_maschine));
768 		memcpy(cdev->keycode, keycode_maschine, sizeof(keycode_maschine));
769 		input->keycodemax = ARRAY_SIZE(keycode_maschine);
770 
771 		for (i = 0; i < MASCHINE_PADS; i++) {
772 			input->absbit[0] |= MASCHINE_PAD(i);
773 			input_set_abs_params(input, MASCHINE_PAD(i), 0, 0xfff, 5, 10);
774 		}
775 
776 		input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10);
777 		input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10);
778 		input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10);
779 		input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10);
780 		input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10);
781 		input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10);
782 		input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10);
783 		input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10);
784 		input_set_abs_params(input, ABS_RX, 0, 999, 0, 10);
785 		input_set_abs_params(input, ABS_RY, 0, 999, 0, 10);
786 		input_set_abs_params(input, ABS_RZ, 0, 999, 0, 10);
787 
788 		cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL);
789 		if (!cdev->ep4_in_urb) {
790 			ret = -ENOMEM;
791 			goto exit_free_idev;
792 		}
793 
794 		usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev,
795 				  usb_rcvbulkpipe(usb_dev, 0x4),
796 				  cdev->ep4_in_buf, EP4_BUFSIZE,
797 				  snd_usb_caiaq_ep4_reply_dispatch, cdev);
798 		ret = usb_urb_ep_type_check(cdev->ep4_in_urb);
799 		if (ret < 0)
800 			goto exit_free_idev;
801 
802 		snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5);
803 		break;
804 
805 	default:
806 		/* no input methods supported on this device */
807 		ret = -EINVAL;
808 		goto exit_free_idev;
809 	}
810 
811 	input->open = snd_usb_caiaq_input_open;
812 	input->close = snd_usb_caiaq_input_close;
813 	input->keycode = cdev->keycode;
814 	input->keycodesize = sizeof(unsigned short);
815 	for (i = 0; i < input->keycodemax; i++)
816 		__set_bit(cdev->keycode[i], input->keybit);
817 
818 	cdev->input_dev = input;
819 
820 	ret = input_register_device(input);
821 	if (ret < 0)
822 		goto exit_free_idev;
823 
824 	return 0;
825 
826 exit_free_idev:
827 	input_free_device(input);
828 	cdev->input_dev = NULL;
829 	return ret;
830 }
831 
snd_usb_caiaq_input_free(struct snd_usb_caiaqdev * cdev)832 void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *cdev)
833 {
834 	if (!cdev || !cdev->input_dev)
835 		return;
836 
837 	usb_kill_urb(cdev->ep4_in_urb);
838 	usb_free_urb(cdev->ep4_in_urb);
839 	cdev->ep4_in_urb = NULL;
840 
841 	input_unregister_device(cdev->input_dev);
842 	cdev->input_dev = NULL;
843 }
844