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 } 495 496