2 * Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
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.
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.
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
19 #include <linux/init.h>
20 #include <linux/module.h>
21 #include <linux/moduleparam.h>
22 #include <linux/input.h>
23 #include <linux/usb.h>
24 #include <linux/usb/input.h>
25 #include <linux/spinlock.h>
26 #include <sound/driver.h>
27 #include <sound/core.h>
28 #include <sound/rawmidi.h>
29 #include <sound/pcm.h>
30 #include "caiaq-device.h"
31 #include "caiaq-input.h"
33 static unsigned short keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
34 static unsigned short keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
35 KEY_5, KEY_6, KEY_7 };
36 static unsigned short keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4,
37 KEY_5, KEY_6, KEY_7, KEY_5, KEY_6 };
39 static unsigned short keycode_kore[] = {
40 KEY_FN_F1, /* "menu" */
41 KEY_FN_F7, /* "lcd backlight */
42 KEY_FN_F2, /* "control" */
43 KEY_FN_F3, /* "enter" */
44 KEY_FN_F4, /* "view" */
45 KEY_FN_F5, /* "esc" */
46 KEY_FN_F6, /* "sound" */
47 KEY_FN_F8, /* array spacer, never triggered. */
52 KEY_SOUND, /* "listen" */
56 BTN_4, /* 8 softkeys */
64 KEY_BRL_DOT4, /* touch sensitive knobs */
74 #define DEG90 (range / 2)
75 #define DEG180 (range)
76 #define DEG270 (DEG90 + DEG180)
77 #define DEG360 (DEG180 * 2)
78 #define HIGH_PEAK (268)
81 /* some of these devices have endless rotation potentiometers
82 * built in which use two tapers, 90 degrees phase shifted.
83 * this algorithm decodes them to one single value, ranging
85 static unsigned int decode_erp(unsigned char a, unsigned char b)
87 int weight_a, weight_b;
90 int range = HIGH_PEAK - LOW_PEAK;
91 int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
93 weight_b = abs(mid_value - a) - (range / 2 - 100) / 2;
101 weight_a = 100 - weight_b;
104 /* 0..90 and 270..360 degrees */
105 pos_b = b - LOW_PEAK + DEG270;
109 /* 90..270 degrees */
110 pos_b = HIGH_PEAK - b + DEG90;
115 pos_a = a - LOW_PEAK;
117 /* 180..360 degrees */
118 pos_a = HIGH_PEAK - a + DEG180;
120 /* interpolate both slider values, depending on weight factors */
122 ret = pos_a * weight_a + pos_b * weight_b;
124 /* normalize to 0..999 */
145 static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
146 const unsigned char *buf,
149 struct input_dev *input_dev = dev->input_dev;
151 switch (dev->chip.usb_id) {
152 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
153 input_report_abs(input_dev, ABS_X, (buf[4] << 8) | buf[5]);
154 input_report_abs(input_dev, ABS_Y, (buf[0] << 8) | buf[1]);
155 input_report_abs(input_dev, ABS_Z, (buf[2] << 8) | buf[3]);
156 input_sync(input_dev);
158 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
159 input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
160 input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
161 input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
162 input_sync(input_dev);
164 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
165 input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
166 input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
167 input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
168 input_sync(input_dev);
173 static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
174 const char *buf, unsigned int len)
176 struct input_dev *input_dev = dev->input_dev;
179 switch (dev->chip.usb_id) {
180 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
181 i = decode_erp(buf[0], buf[1]);
182 input_report_abs(input_dev, ABS_X, i);
183 input_sync(input_dev);
185 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
186 i = decode_erp(buf[7], buf[5]);
187 input_report_abs(input_dev, ABS_HAT0X, i);
188 i = decode_erp(buf[12], buf[14]);
189 input_report_abs(input_dev, ABS_HAT0Y, i);
190 i = decode_erp(buf[15], buf[13]);
191 input_report_abs(input_dev, ABS_HAT1X, i);
192 i = decode_erp(buf[0], buf[2]);
193 input_report_abs(input_dev, ABS_HAT1Y, i);
194 i = decode_erp(buf[3], buf[1]);
195 input_report_abs(input_dev, ABS_HAT2X, i);
196 i = decode_erp(buf[8], buf[10]);
197 input_report_abs(input_dev, ABS_HAT2Y, i);
198 i = decode_erp(buf[11], buf[9]);
199 input_report_abs(input_dev, ABS_HAT3X, i);
200 i = decode_erp(buf[4], buf[6]);
201 input_report_abs(input_dev, ABS_HAT3Y, i);
202 input_sync(input_dev);
207 static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
208 char *buf, unsigned int len)
210 struct input_dev *input_dev = dev->input_dev;
211 unsigned short *keycode = input_dev->keycode;
217 if (input_dev->id.product == USB_PID_RIGKONTROL2)
218 for (i = 0; i < len; i++)
221 for (i = 0; i < input_dev->keycodemax && i < len * 8; i++)
222 input_report_key(input_dev, keycode[i],
223 buf[i / 8] & (1 << (i % 8)));
225 if (dev->chip.usb_id ==
226 USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER))
227 input_report_abs(dev->input_dev, ABS_MISC, 255 - buf[4]);
229 input_sync(input_dev);
232 void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev,
236 if (!dev->input_dev || len < 1)
240 case EP1_CMD_READ_ANALOG:
241 snd_caiaq_input_read_analog(dev, buf + 1, len - 1);
243 case EP1_CMD_READ_ERP:
244 snd_caiaq_input_read_erp(dev, buf + 1, len - 1);
246 case EP1_CMD_READ_IO:
247 snd_caiaq_input_read_io(dev, buf + 1, len - 1);
252 int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
254 struct usb_device *usb_dev = dev->chip.dev;
255 struct input_dev *input;
258 input = input_allocate_device();
262 usb_make_path(usb_dev, dev->phys, sizeof(dev->phys));
263 strlcat(dev->phys, "/input0", sizeof(dev->phys));
265 input->name = dev->product_name;
266 input->phys = dev->phys;
267 usb_to_input_id(usb_dev, &input->id);
268 input->dev.parent = &usb_dev->dev;
270 switch (dev->chip.usb_id) {
271 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
272 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
273 input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
275 BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk2));
276 memcpy(dev->keycode, keycode_rk2, sizeof(keycode_rk2));
277 input->keycodemax = ARRAY_SIZE(keycode_rk2);
278 input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
279 input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
280 input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
281 snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
283 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
284 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
285 input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
287 BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk3));
288 memcpy(dev->keycode, keycode_rk3, sizeof(keycode_rk3));
289 input->keycodemax = ARRAY_SIZE(keycode_rk3);
290 input_set_abs_params(input, ABS_X, 0, 1024, 0, 10);
291 input_set_abs_params(input, ABS_Y, 0, 1024, 0, 10);
292 input_set_abs_params(input, ABS_Z, 0, 1024, 0, 10);
293 snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
295 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
296 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
297 input->absbit[0] = BIT_MASK(ABS_X);
298 BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_ak1));
299 memcpy(dev->keycode, keycode_ak1, sizeof(keycode_ak1));
300 input->keycodemax = ARRAY_SIZE(keycode_ak1);
301 input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
302 snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
304 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
305 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
306 input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
307 BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
308 BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
309 BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
310 BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
312 input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
313 BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_kore));
314 memcpy(dev->keycode, keycode_kore, sizeof(keycode_kore));
315 input->keycodemax = ARRAY_SIZE(keycode_kore);
316 input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10);
317 input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10);
318 input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10);
319 input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10);
320 input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10);
321 input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10);
322 input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10);
323 input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10);
324 input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
325 input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
326 input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
327 input_set_abs_params(input, ABS_MISC, 0, 255, 0, 1);
328 snd_usb_caiaq_set_auto_msg(dev, 1, 10, 5);
331 /* no input methods supported on this device */
332 input_free_device(input);
336 input->keycode = dev->keycode;
337 input->keycodesize = sizeof(unsigned short);
338 for (i = 0; i < input->keycodemax; i++)
339 __set_bit(dev->keycode[i], input->keybit);
341 ret = input_register_device(input);
343 input_free_device(input);
347 dev->input_dev = input;
351 void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev)
353 if (!dev || !dev->input_dev)
356 input_unregister_device(dev->input_dev);
357 dev->input_dev = NULL;