| 1 | /* |
| 2 | * TeensyTP, Team Player/4-Player Adaptor implementation for Teensy3 |
| 3 | * host part |
| 4 | * Copyright (c) 2015 notaz |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining |
| 7 | * a copy of this software and associated documentation files (the |
| 8 | * "Software"), to deal in the Software without restriction, including |
| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
| 10 | * distribute, sublicense, and/or sell copies of the Software, and to |
| 11 | * permit persons to whom the Software is furnished to do so, subject to |
| 12 | * the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be |
| 15 | * included in all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 20 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 21 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 22 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 23 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 24 | * SOFTWARE. |
| 25 | */ |
| 26 | |
| 27 | #include <stdio.h> |
| 28 | #include <stdlib.h> |
| 29 | #include <string.h> |
| 30 | #include <stdint.h> |
| 31 | #include <sys/types.h> |
| 32 | #include <sys/stat.h> |
| 33 | #include <fcntl.h> |
| 34 | #include <sys/ioctl.h> |
| 35 | #include <sys/select.h> |
| 36 | #include <unistd.h> |
| 37 | #include <dirent.h> |
| 38 | #include <signal.h> |
| 39 | #include <termios.h> |
| 40 | #include <errno.h> |
| 41 | #include <linux/usbdevice_fs.h> |
| 42 | #include <linux/usb/ch9.h> |
| 43 | #include <linux/input.h> |
| 44 | #include "../pkts.h" |
| 45 | |
| 46 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
| 47 | |
| 48 | struct teensy_dev { |
| 49 | int fd; |
| 50 | struct { |
| 51 | int ep_in; |
| 52 | int ep_out; |
| 53 | } ifaces[2]; |
| 54 | }; |
| 55 | |
| 56 | /* return 1 if found, 0 if not, < 0 on error */ |
| 57 | static int find_device(struct teensy_dev *dev, |
| 58 | uint16_t vendor, uint16_t product) |
| 59 | { |
| 60 | const char path_root[] = "/dev/bus/usb"; |
| 61 | union { |
| 62 | struct usb_descriptor_header hdr; |
| 63 | struct usb_device_descriptor d; |
| 64 | struct usb_config_descriptor c; |
| 65 | struct usb_interface_descriptor i; |
| 66 | struct usb_endpoint_descriptor e; |
| 67 | char space[0x100]; /* enough? */ |
| 68 | } desc; |
| 69 | char path_bus[256], path_dev[256]; |
| 70 | struct dirent *ent, *ent_bus; |
| 71 | DIR *dir = NULL, *dir_bus = NULL; |
| 72 | int num, fd = -1; |
| 73 | int iface = -1; |
| 74 | int retval = -1; |
| 75 | int ret; |
| 76 | |
| 77 | memset(dev, 0xff, sizeof(*dev)); |
| 78 | |
| 79 | dir = opendir(path_root); |
| 80 | if (dir == NULL) { |
| 81 | perror("opendir"); |
| 82 | return -1; |
| 83 | } |
| 84 | |
| 85 | for (ent = readdir(dir); ent != NULL; ent = readdir(dir)) { |
| 86 | /* should be a number like 000 */ |
| 87 | if (sscanf(ent->d_name, "%03d", &num) != 1) |
| 88 | continue; |
| 89 | |
| 90 | snprintf(path_bus, sizeof(path_bus), "%s/%s", |
| 91 | path_root, ent->d_name); |
| 92 | |
| 93 | dir_bus = opendir(path_bus); |
| 94 | if (dir_bus == NULL) |
| 95 | continue; |
| 96 | |
| 97 | ent_bus = readdir(dir_bus); |
| 98 | for (; ent_bus != NULL; ent_bus = readdir(dir_bus)) { |
| 99 | if (sscanf(ent->d_name, "%03d", &num) != 1) |
| 100 | continue; |
| 101 | |
| 102 | snprintf(path_dev, sizeof(path_dev), "%s/%s/%s", |
| 103 | path_root, ent->d_name, ent_bus->d_name); |
| 104 | |
| 105 | fd = open(path_dev, O_RDWR); |
| 106 | if (fd == -1) |
| 107 | continue; |
| 108 | |
| 109 | ret = read(fd, &desc.d, sizeof(desc.d)); |
| 110 | if (ret != sizeof(desc.d)) { |
| 111 | fprintf(stderr, "desc read: %d/%zd: ", ret, sizeof(desc.d)); |
| 112 | perror(""); |
| 113 | goto next; |
| 114 | } |
| 115 | |
| 116 | if (desc.d.bDescriptorType != USB_DT_DEVICE) { |
| 117 | fprintf(stderr, "%s: bad DT: 0x%02x\n", |
| 118 | path_dev, desc.d.bDescriptorType); |
| 119 | goto next; |
| 120 | } |
| 121 | |
| 122 | if (desc.d.idVendor == vendor && desc.d.idProduct == product) |
| 123 | goto found; |
| 124 | |
| 125 | next: |
| 126 | close(fd); |
| 127 | fd = -1; |
| 128 | } |
| 129 | |
| 130 | closedir(dir_bus); |
| 131 | dir_bus = NULL; |
| 132 | } |
| 133 | |
| 134 | /* not found */ |
| 135 | retval = 0; |
| 136 | goto out; |
| 137 | |
| 138 | found: |
| 139 | if (desc.d.bNumConfigurations != 1) { |
| 140 | fprintf(stderr, "unexpected bNumConfigurations: %u\n", |
| 141 | desc.d.bNumConfigurations); |
| 142 | goto out; |
| 143 | } |
| 144 | |
| 145 | /* walk through all descriptors */ |
| 146 | while (1) |
| 147 | { |
| 148 | ret = read(fd, &desc.hdr, sizeof(desc.hdr)); |
| 149 | if (ret == 0) |
| 150 | break; |
| 151 | if (ret != sizeof(desc.hdr)) { |
| 152 | fprintf(stderr, "desc.hdr read: %d/%zd: ", ret, sizeof(desc.hdr)); |
| 153 | perror(""); |
| 154 | break; |
| 155 | } |
| 156 | |
| 157 | ret = (int)lseek(fd, -sizeof(desc.hdr), SEEK_CUR); |
| 158 | if (ret == -1) { |
| 159 | perror("lseek"); |
| 160 | break; |
| 161 | } |
| 162 | |
| 163 | ret = read(fd, &desc, desc.hdr.bLength); |
| 164 | if (ret != desc.hdr.bLength) { |
| 165 | fprintf(stderr, "desc read: %d/%u: ", ret, desc.hdr.bLength); |
| 166 | perror(""); |
| 167 | break; |
| 168 | } |
| 169 | |
| 170 | switch (desc.hdr.bDescriptorType) { |
| 171 | case USB_DT_CONFIG: |
| 172 | if (desc.c.bNumInterfaces != 2) { |
| 173 | fprintf(stderr, "unexpected bNumInterfaces: %u\n", |
| 174 | desc.c.bNumInterfaces); |
| 175 | goto out; |
| 176 | } |
| 177 | break; |
| 178 | |
| 179 | case USB_DT_INTERFACE: |
| 180 | if (desc.i.bInterfaceClass != USB_CLASS_HID |
| 181 | || desc.i.bInterfaceSubClass != 0 |
| 182 | || desc.i.bInterfaceProtocol != 0) { |
| 183 | fprintf(stderr, "unexpected interface %x:%x:%x\n", |
| 184 | desc.i.bInterfaceClass, desc.i.bInterfaceSubClass, |
| 185 | desc.i.bInterfaceProtocol); |
| 186 | goto out; |
| 187 | } |
| 188 | if (desc.i.bNumEndpoints != 2) { |
| 189 | fprintf(stderr, "unexpected bNumEndpoints: %u\n", |
| 190 | desc.i.bNumEndpoints); |
| 191 | goto out; |
| 192 | } |
| 193 | iface++; |
| 194 | break; |
| 195 | |
| 196 | case USB_DT_ENDPOINT: |
| 197 | if (iface < 0 || iface >= ARRAY_SIZE(dev->ifaces)) { |
| 198 | fprintf(stderr, "bad iface: %d\n", iface); |
| 199 | goto out; |
| 200 | } |
| 201 | if (desc.e.wMaxPacketSize != 64 && desc.e.wMaxPacketSize != 32) { |
| 202 | fprintf(stderr, "iface %d, EP %02x: " |
| 203 | "unexpected wMaxPacketSize: %u\n", |
| 204 | iface, desc.e.bEndpointAddress, desc.e.wMaxPacketSize); |
| 205 | goto out; |
| 206 | } |
| 207 | if (desc.e.bEndpointAddress & 0x80) |
| 208 | dev->ifaces[iface].ep_in = desc.e.bEndpointAddress; // & 0x7F; |
| 209 | else |
| 210 | dev->ifaces[iface].ep_out = desc.e.bEndpointAddress; |
| 211 | break; |
| 212 | |
| 213 | case 0x21: |
| 214 | /* ignore */ |
| 215 | break; |
| 216 | |
| 217 | default: |
| 218 | fprintf(stderr, "skipping desc 0x%02x\n", |
| 219 | desc.hdr.bDescriptorType); |
| 220 | break; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | /* claim interfaces */ |
| 225 | for (iface = 0; iface < ARRAY_SIZE(dev->ifaces); iface++) { |
| 226 | struct usbdevfs_ioctl usbio; |
| 227 | |
| 228 | if (dev->ifaces[iface].ep_in == -1) { |
| 229 | fprintf(stderr, "missing ep_in, iface: %d\n", iface); |
| 230 | goto out; |
| 231 | } |
| 232 | if (dev->ifaces[iface].ep_out == -1) { |
| 233 | fprintf(stderr, "missing ep_out, iface: %d\n", iface); |
| 234 | goto out; |
| 235 | } |
| 236 | |
| 237 | /* disconnect default driver */ |
| 238 | memset(&usbio, 0, sizeof(usbio)); |
| 239 | usbio.ifno = iface; |
| 240 | usbio.ioctl_code = USBDEVFS_DISCONNECT; |
| 241 | ret = ioctl(fd, USBDEVFS_IOCTL, &usbio); |
| 242 | if (ret != 0 && errno != ENODATA) |
| 243 | perror("USBDEVFS_DISCONNECT"); |
| 244 | |
| 245 | ret = ioctl(fd, USBDEVFS_CLAIMINTERFACE, &iface); |
| 246 | if (ret != 0) |
| 247 | perror("USBDEVFS_CLAIMINTERFACE"); |
| 248 | } |
| 249 | |
| 250 | dev->fd = fd; |
| 251 | fd = -1; |
| 252 | retval = 1; |
| 253 | |
| 254 | out: |
| 255 | if (fd != -1) |
| 256 | close(fd); |
| 257 | if (dir_bus != NULL) |
| 258 | closedir(dir_bus); |
| 259 | if (dir != NULL) |
| 260 | closedir(dir); |
| 261 | |
| 262 | return retval; |
| 263 | } |
| 264 | |
| 265 | static int enable_echo(int enable) |
| 266 | { |
| 267 | const char *portname = "/dev/tty"; |
| 268 | struct termios tty; |
| 269 | int retval = -1; |
| 270 | int ret; |
| 271 | int fd; |
| 272 | |
| 273 | memset(&tty, 0, sizeof(tty)); |
| 274 | |
| 275 | fd = open(portname, O_RDWR | O_NOCTTY | O_SYNC); |
| 276 | if (fd < 0) { |
| 277 | fprintf(stderr, "open %s: ", portname); |
| 278 | perror(""); |
| 279 | return 1; |
| 280 | } |
| 281 | |
| 282 | ret = tcgetattr(fd, &tty); |
| 283 | if (ret != 0) { |
| 284 | perror("tcgetattr"); |
| 285 | goto out; |
| 286 | } |
| 287 | |
| 288 | // printf("lflag: 0%o\n", tty.c_lflag); |
| 289 | if (enable) |
| 290 | tty.c_lflag |= ECHO | ICANON; |
| 291 | else { |
| 292 | tty.c_lflag &= ~(ECHO | ICANON); |
| 293 | tty.c_cc[VMIN] = tty.c_cc[VTIME] = 0; |
| 294 | } |
| 295 | |
| 296 | ret = tcsetattr(fd, TCSANOW, &tty); |
| 297 | if (ret != 0) { |
| 298 | perror("tcsetattr"); |
| 299 | goto out; |
| 300 | } |
| 301 | |
| 302 | retval = 0; |
| 303 | out: |
| 304 | close(fd); |
| 305 | |
| 306 | return retval; |
| 307 | } |
| 308 | |
| 309 | static int g_exit; |
| 310 | |
| 311 | static void signal_handler(int sig) |
| 312 | { |
| 313 | g_exit = 1; |
| 314 | signal(sig, SIG_DFL); |
| 315 | } |
| 316 | |
| 317 | /* MXYZ SACB RLDU */ |
| 318 | enum mdbtn { |
| 319 | MDBTN_UP = (1 << 0), |
| 320 | MDBTN_DOWN = (1 << 1), |
| 321 | MDBTN_LEFT = (1 << 2), |
| 322 | MDBTN_RIGHT = (1 << 3), |
| 323 | MDBTN_A = (1 << 6), |
| 324 | MDBTN_B = (1 << 4), |
| 325 | MDBTN_C = (1 << 5), |
| 326 | MDBTN_START = (1 << 7), |
| 327 | MDBTN_X = (1 << 10), |
| 328 | MDBTN_Y = (1 << 9), |
| 329 | MDBTN_Z = (1 << 8), |
| 330 | MDBTN_MODE = (1 << 11), |
| 331 | }; |
| 332 | |
| 333 | #define BTN_JOY BTN_JOYSTICK |
| 334 | #define BTN_GP BTN_GAMEPAD |
| 335 | |
| 336 | static const uint32_t evdev_md_default_map[KEY_CNT] = { |
| 337 | [KEY_UP] = MDBTN_UP, |
| 338 | [KEY_DOWN] = MDBTN_DOWN, |
| 339 | [KEY_LEFT] = MDBTN_LEFT, |
| 340 | [KEY_RIGHT] = MDBTN_RIGHT, |
| 341 | [KEY_Z] = MDBTN_A, |
| 342 | [KEY_X] = MDBTN_B, |
| 343 | [KEY_C] = MDBTN_C, |
| 344 | [KEY_A] = MDBTN_X, |
| 345 | [KEY_S] = MDBTN_Y, |
| 346 | [KEY_D] = MDBTN_Z, |
| 347 | [KEY_F] = MDBTN_MODE, |
| 348 | [KEY_ENTER] = MDBTN_START, |
| 349 | // joystick, assume diamond face button layout 1 |
| 350 | // 4 2 |
| 351 | // 3 |
| 352 | [BTN_JOY + 0] = MDBTN_X, |
| 353 | [BTN_JOY + 1] = MDBTN_C, |
| 354 | [BTN_JOY + 2] = MDBTN_B, |
| 355 | [BTN_JOY + 3] = MDBTN_A, |
| 356 | [BTN_JOY + 4] = MDBTN_Y, |
| 357 | [BTN_JOY + 5] = MDBTN_Z, |
| 358 | [BTN_JOY + 6] = MDBTN_START, |
| 359 | [BTN_JOY + 7] = MDBTN_MODE, |
| 360 | [BTN_JOY + 9] = MDBTN_START, |
| 361 | // gamepad |
| 362 | [BTN_GP + 0] = MDBTN_A, |
| 363 | [BTN_GP + 1] = MDBTN_B, |
| 364 | [BTN_GP + 2] = MDBTN_C, |
| 365 | [BTN_GP + 3] = MDBTN_X, |
| 366 | [BTN_GP + 4] = MDBTN_Y, |
| 367 | [BTN_GP + 5] = MDBTN_Z, |
| 368 | [BTN_GP + 6] = MDBTN_START, |
| 369 | [BTN_GP + 7] = MDBTN_MODE, |
| 370 | [BTN_GP + 9] = MDBTN_START, |
| 371 | // pandora |
| 372 | [KEY_HOME] = MDBTN_A, |
| 373 | [KEY_PAGEDOWN] = MDBTN_B, |
| 374 | [KEY_END] = MDBTN_C, |
| 375 | [KEY_LEFTALT] = MDBTN_START, |
| 376 | }; |
| 377 | |
| 378 | static const uint16_t bind_to_mask[256] = { |
| 379 | ['u'] = MDBTN_UP, |
| 380 | ['d'] = MDBTN_DOWN, |
| 381 | ['l'] = MDBTN_LEFT, |
| 382 | ['r'] = MDBTN_RIGHT, |
| 383 | ['a'] = MDBTN_A, |
| 384 | ['b'] = MDBTN_B, |
| 385 | ['c'] = MDBTN_C, |
| 386 | ['s'] = MDBTN_START, |
| 387 | ['x'] = MDBTN_X, |
| 388 | ['y'] = MDBTN_Y, |
| 389 | ['z'] = MDBTN_Z, |
| 390 | ['m'] = MDBTN_MODE, |
| 391 | ['0'] = 0, // to unbind a key |
| 392 | }; |
| 393 | |
| 394 | static struct player_state { |
| 395 | uint32_t state; |
| 396 | int dirty; |
| 397 | } players[4]; |
| 398 | |
| 399 | struct evdev_dev { |
| 400 | uint32_t kc_map[KEY_CNT]; |
| 401 | uint32_t player; |
| 402 | int fd; |
| 403 | struct { |
| 404 | int min, max, zone; |
| 405 | } abs[2]; // more abs on TODO (problems like noisy analogs) |
| 406 | } devs[16]; |
| 407 | |
| 408 | static int verbose; |
| 409 | |
| 410 | #define printf_v(l_, fmt_, ...) do { \ |
| 411 | if (verbose >= (l_)) \ |
| 412 | fprintf(stderr, fmt_, ##__VA_ARGS__); \ |
| 413 | } while (0) |
| 414 | |
| 415 | static int do_evdev_input(struct evdev_dev *dev) |
| 416 | { |
| 417 | struct player_state *player; |
| 418 | struct input_event ev; |
| 419 | uint32_t mask_clear = 0; |
| 420 | uint32_t mask_set = 0; |
| 421 | uint32_t old_state; |
| 422 | int ret; |
| 423 | |
| 424 | ret = read(dev->fd, &ev, sizeof(ev)); |
| 425 | if (ret != sizeof(ev)) { |
| 426 | fprintf(stderr, "%tu, p%u: evdev read %d/%zd: ", |
| 427 | dev - devs, dev->player, ret, sizeof(ev)); |
| 428 | perror(""); |
| 429 | if (ret < 0) { |
| 430 | close(dev->fd); |
| 431 | dev->fd = -1; |
| 432 | } |
| 433 | return 0; |
| 434 | } |
| 435 | |
| 436 | if (dev->player >= ARRAY_SIZE(players)) { |
| 437 | fprintf(stderr, "bad player: %u\n", dev->player); |
| 438 | return 0; |
| 439 | } |
| 440 | player = &players[dev->player]; |
| 441 | old_state = player->state; |
| 442 | |
| 443 | if (ev.type == EV_ABS) { |
| 444 | uint32_t l, h; |
| 445 | |
| 446 | if (ev.code >= ARRAY_SIZE(dev->abs)) { |
| 447 | printf_v(2, "abs id %u is too large\n", ev.code); |
| 448 | return 0; |
| 449 | } |
| 450 | printf_v(1, "%tu p%u: abs %u: %4d %4d %4d (%d)\n", |
| 451 | dev - devs, dev->player, ev.code, |
| 452 | dev->abs[ev.code].min, ev.value, |
| 453 | dev->abs[ev.code].max, dev->abs[ev.code].zone); |
| 454 | |
| 455 | l = (ev.code & 1) ? MDBTN_UP : MDBTN_LEFT; |
| 456 | h = (ev.code & 1) ? MDBTN_DOWN : MDBTN_RIGHT; |
| 457 | mask_clear = l | h; |
| 458 | if (ev.value < dev->abs[ev.code].min + dev->abs[ev.code].zone) |
| 459 | mask_set = l; |
| 460 | else if (ev.value > dev->abs[ev.code].max - dev->abs[ev.code].zone) |
| 461 | mask_set = h; |
| 462 | } |
| 463 | else if (ev.type == EV_KEY) { |
| 464 | if (ev.value != 0 && ev.value != 1) |
| 465 | return 0; |
| 466 | |
| 467 | if ((uint32_t)ev.code >= ARRAY_SIZE(dev->kc_map)) { |
| 468 | fprintf(stderr, "evdev read bad key: %u\n", ev.code); |
| 469 | return 0; |
| 470 | } |
| 471 | |
| 472 | if (ev.value) // press? |
| 473 | mask_set = dev->kc_map[ev.code]; |
| 474 | else |
| 475 | mask_clear = dev->kc_map[ev.code]; |
| 476 | } |
| 477 | else { |
| 478 | return 0; |
| 479 | } |
| 480 | |
| 481 | printf_v(1, "%tu p%u: c %03x, s %03x\n", |
| 482 | dev - devs, dev->player, mask_clear, mask_set); |
| 483 | |
| 484 | player->state &= ~mask_clear; |
| 485 | player->state |= mask_set; |
| 486 | |
| 487 | player->dirty |= old_state != player->state; |
| 488 | return player->dirty; |
| 489 | } |
| 490 | |
| 491 | static int open_evdev(struct evdev_dev *dev, char *str_in) |
| 492 | { |
| 493 | uint32_t event_support = 0; |
| 494 | uint32_t abs_support = 0; |
| 495 | struct input_absinfo absi; |
| 496 | const char *name = str_in; |
| 497 | char *p, *s, *binds = NULL; |
| 498 | int i, fd, ret; |
| 499 | char buf[64]; |
| 500 | |
| 501 | p = strchr(str_in, ','); |
| 502 | if (p != NULL) { |
| 503 | *p++ = 0; |
| 504 | binds = p; |
| 505 | } |
| 506 | |
| 507 | p = NULL; |
| 508 | i = strtol(name, &p, 0); |
| 509 | if (p != NULL && *p == 0) { |
| 510 | snprintf(buf, sizeof(buf), "/dev/input/event%d", i); |
| 511 | name = buf; |
| 512 | } |
| 513 | |
| 514 | fd = open(name, O_RDONLY); |
| 515 | if (fd == -1) { |
| 516 | fprintf(stderr, "open %s: ", name); |
| 517 | perror(""); |
| 518 | return -1; |
| 519 | } |
| 520 | ret = ioctl(fd, EVIOCGBIT(0, sizeof(event_support)), |
| 521 | &event_support); |
| 522 | if (ret < 0) |
| 523 | perror("EVIOCGBIT"); |
| 524 | if (!(event_support & ((1 << EV_KEY) | (1 << EV_ABS)))) { |
| 525 | fprintf(stderr, "%s doesn't have keys or abs\n", name); |
| 526 | close(fd); |
| 527 | return -1; |
| 528 | } |
| 529 | |
| 530 | dev->fd = fd; |
| 531 | |
| 532 | if (event_support & (1 << EV_ABS)) { |
| 533 | ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(abs_support)), |
| 534 | &abs_support); |
| 535 | if (ret < 0) |
| 536 | perror("EVIOCGBIT"); |
| 537 | for (i = 0; i < ARRAY_SIZE(dev->abs); i++) { |
| 538 | if (!(abs_support & (1 << i))) |
| 539 | continue; |
| 540 | ret = ioctl(fd, EVIOCGABS(i), &absi); |
| 541 | if (ret != 0) { |
| 542 | perror("EVIOCGABS"); |
| 543 | continue; |
| 544 | } |
| 545 | dev->abs[i].min = absi.minimum; |
| 546 | dev->abs[i].max = absi.maximum; |
| 547 | dev->abs[i].zone = (absi.maximum - absi.minimum) / 3; |
| 548 | } |
| 549 | } |
| 550 | |
| 551 | memcpy(dev->kc_map, evdev_md_default_map, sizeof(dev->kc_map)); |
| 552 | if (binds != NULL) { |
| 553 | unsigned int kc, end = 0; |
| 554 | |
| 555 | p = binds; |
| 556 | do { |
| 557 | s = p; |
| 558 | for (; *p != 0 && *p != ','; p++) |
| 559 | ; |
| 560 | if (*p == 0) |
| 561 | end = 1; |
| 562 | else |
| 563 | *p++ = 0; |
| 564 | if (strncmp(s, "j=", 2) == 0) { |
| 565 | kc = BTN_JOYSTICK; |
| 566 | s += 2; |
| 567 | } |
| 568 | else if (strncmp(s, "g=", 2) == 0) { |
| 569 | kc = BTN_GAMEPAD; |
| 570 | s += 2; |
| 571 | } |
| 572 | else { |
| 573 | ret = sscanf(s, "%u=", &kc); |
| 574 | if (ret != 1 || (s = strchr(s, '=')) == NULL) { |
| 575 | fprintf(stderr, "parse failed: '%s'\n", s); |
| 576 | break; |
| 577 | } |
| 578 | s++; |
| 579 | } |
| 580 | // bind |
| 581 | for (; *s != 0 && kc < sizeof(dev->kc_map); s++, kc++) { |
| 582 | uint32_t mask = bind_to_mask[(uint8_t)*s]; |
| 583 | if (mask == 0 && *s != '0') { |
| 584 | fprintf(stderr, "%s: '%c' is not a valid MD btn\n", name, *s); |
| 585 | continue; |
| 586 | } |
| 587 | dev->kc_map[kc] = mask; |
| 588 | } |
| 589 | } |
| 590 | while (!end); |
| 591 | } |
| 592 | |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static void do_stdin_input(uint32_t *mode, int *changed) |
| 597 | { |
| 598 | char c = 0; |
| 599 | int ret; |
| 600 | |
| 601 | ret = read(STDIN_FILENO, &c, 1); |
| 602 | if (ret <= 0) { |
| 603 | perror("read stdin"); |
| 604 | return; |
| 605 | } |
| 606 | |
| 607 | switch (c) { |
| 608 | case '1': |
| 609 | printf("3btn mode\n"); |
| 610 | *mode = OP_MODE_3BTN; |
| 611 | *changed = 1; |
| 612 | break; |
| 613 | case '2': |
| 614 | printf("6btn mode\n"); |
| 615 | *mode = OP_MODE_6BTN; |
| 616 | *changed = 1; |
| 617 | break; |
| 618 | case '3': |
| 619 | printf("teamplayer mode\n"); |
| 620 | *mode = OP_MODE_TEAMPLAYER; |
| 621 | *changed = 1; |
| 622 | break; |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | static int submit_urb(int fd, struct usbdevfs_urb *urb, int ep, |
| 627 | void *buf, size_t buf_size) |
| 628 | { |
| 629 | memset(urb, 0, sizeof(*urb)); |
| 630 | urb->type = USBDEVFS_URB_TYPE_INTERRUPT; |
| 631 | urb->endpoint = ep; |
| 632 | urb->buffer = buf; |
| 633 | urb->buffer_length = buf_size; |
| 634 | |
| 635 | return ioctl(fd, USBDEVFS_SUBMITURB, urb); |
| 636 | } |
| 637 | |
| 638 | enum my_urbs { |
| 639 | URB_DATA_IN, |
| 640 | URB_DATA_OUT, |
| 641 | URB_DBG_IN, |
| 642 | URB_CNT |
| 643 | }; |
| 644 | |
| 645 | static void usage(const char *argv0) |
| 646 | { |
| 647 | fprintf(stderr, "usage:\n%s <-e player /dev/input/node[,binds]>*\n" |
| 648 | " [-m <mode>] [-v]\n\n" |
| 649 | " binds: <keycode=mdbtns>[,keycode=mdbtns]*\n" |
| 650 | " keycode: first keycode (int), can be j,g for joy,gamepad btn0\n" |
| 651 | " mdbtns: sequence of chars from: udlrabcsxyzm0\n" |
| 652 | " (u=up, d=down, ..., 0=unbind)\n" |
| 653 | " mode: int 0-2: 3btn 6btn teamplayer\n", argv0); |
| 654 | exit(1); |
| 655 | } |
| 656 | |
| 657 | static void bad_arg(char *argv[], int a) |
| 658 | { |
| 659 | fprintf(stderr, "bad arg %d: '%s'\n", a, argv[a]); |
| 660 | usage(argv[0]); |
| 661 | } |
| 662 | |
| 663 | int main(int argc, char *argv[]) |
| 664 | { |
| 665 | struct teensy_dev dev; |
| 666 | struct usbdevfs_urb urb[URB_CNT]; |
| 667 | struct usbdevfs_urb *reaped_urb; |
| 668 | int dev_cnt = 0; |
| 669 | int wait_device = 0; |
| 670 | int pending_urbs = 0; |
| 671 | int had_input = 0; |
| 672 | fd_set rfds, wfds; |
| 673 | int mode_changed = 0; |
| 674 | char buf_dbg[64 + 1]; |
| 675 | struct tp_pkt pkt_in; |
| 676 | struct tp_pkt pkt_out; |
| 677 | struct timeval *timeout = NULL; |
| 678 | struct timeval tout; |
| 679 | uint32_t mode = OP_MODE_3BTN; |
| 680 | uint32_t player; |
| 681 | int i, ret = -1; |
| 682 | |
| 683 | for (i = 1; i < argc; i++) { |
| 684 | if (argv[i][0] == '-') { |
| 685 | switch (argv[i][1] | (argv[i][2] << 8)) { |
| 686 | case 'e': |
| 687 | if (argv[++i] == NULL) |
| 688 | bad_arg(argv, i); |
| 689 | player = strtoul(argv[i], NULL, 0); |
| 690 | if (player >= ARRAY_SIZE(players)) |
| 691 | bad_arg(argv, i); |
| 692 | |
| 693 | if (argv[++i] == NULL) |
| 694 | bad_arg(argv, i); |
| 695 | if (dev_cnt >= ARRAY_SIZE(devs)) { |
| 696 | fprintf(stderr, "too many evdevs\n"); |
| 697 | break; |
| 698 | } |
| 699 | ret = open_evdev(&devs[dev_cnt], argv[i]); |
| 700 | if (ret != 0) |
| 701 | bad_arg(argv, i); |
| 702 | devs[dev_cnt].player = player; |
| 703 | dev_cnt++; |
| 704 | continue; |
| 705 | case 'm': |
| 706 | if (argv[++i] == NULL) |
| 707 | bad_arg(argv, i); |
| 708 | mode = strtoul(argv[i], NULL, 0); |
| 709 | mode_changed = 1; |
| 710 | continue; |
| 711 | case 'v': |
| 712 | verbose++; |
| 713 | continue; |
| 714 | } |
| 715 | } |
| 716 | bad_arg(argv, i); |
| 717 | } |
| 718 | |
| 719 | if (dev_cnt == 0) |
| 720 | usage(argv[0]); |
| 721 | |
| 722 | enable_echo(0); |
| 723 | signal(SIGINT, signal_handler); |
| 724 | |
| 725 | dev.fd = -1; |
| 726 | |
| 727 | while (!g_exit || (pending_urbs & (1 << URB_DATA_OUT))) |
| 728 | { |
| 729 | if (dev.fd == -1) { |
| 730 | ret = find_device(&dev, 0x16C0, 0x0486); |
| 731 | if (ret < 0) |
| 732 | break; |
| 733 | |
| 734 | if (ret == 0) { |
| 735 | if (!wait_device) { |
| 736 | printf("waiting for device...\n"); |
| 737 | wait_device = 1; |
| 738 | } |
| 739 | usleep(250000); |
| 740 | continue; |
| 741 | } |
| 742 | |
| 743 | wait_device = 0; |
| 744 | pending_urbs = 0; |
| 745 | |
| 746 | /* we wait first, then send commands, but if teensy |
| 747 | * is started already, it won't send anything back */ |
| 748 | tout.tv_sec = 1; |
| 749 | tout.tv_usec = 0; |
| 750 | timeout = &tout; |
| 751 | } |
| 752 | |
| 753 | if (!(pending_urbs & (1 << URB_DATA_IN))) { |
| 754 | memset(&pkt_in, 0, sizeof(pkt_in)); |
| 755 | ret = submit_urb(dev.fd, &urb[URB_DATA_IN], dev.ifaces[0].ep_in, |
| 756 | &pkt_in, sizeof(pkt_in)); |
| 757 | if (ret != 0) { |
| 758 | perror("USBDEVFS_SUBMITURB URB_DATA_IN"); |
| 759 | break; |
| 760 | } |
| 761 | |
| 762 | pending_urbs |= 1 << URB_DATA_IN; |
| 763 | } |
| 764 | if (!(pending_urbs & (1 << URB_DBG_IN))) { |
| 765 | ret = submit_urb(dev.fd, &urb[URB_DBG_IN], dev.ifaces[1].ep_in, |
| 766 | buf_dbg, sizeof(buf_dbg) - 1); |
| 767 | if (ret != 0) { |
| 768 | perror("USBDEVFS_SUBMITURB URB_DBG_IN"); |
| 769 | break; |
| 770 | } |
| 771 | |
| 772 | pending_urbs |= 1 << URB_DBG_IN; |
| 773 | } |
| 774 | |
| 775 | FD_ZERO(&rfds); |
| 776 | FD_SET(STDIN_FILENO, &rfds); |
| 777 | for (i = 0; i < dev_cnt; i++) |
| 778 | if (devs[i].fd != -1) |
| 779 | FD_SET(devs[i].fd, &rfds); |
| 780 | |
| 781 | FD_ZERO(&wfds); |
| 782 | FD_SET(dev.fd, &wfds); |
| 783 | |
| 784 | ret = select(dev.fd + 1, &rfds, &wfds, NULL, timeout); |
| 785 | if (ret < 0) { |
| 786 | perror("select"); |
| 787 | break; |
| 788 | } |
| 789 | timeout = NULL; |
| 790 | |
| 791 | /* something form stdin? */ |
| 792 | if (FD_ISSET(STDIN_FILENO, &rfds)) |
| 793 | do_stdin_input(&mode, &mode_changed); |
| 794 | |
| 795 | /* something from input devices? */ |
| 796 | had_input = 0; |
| 797 | for (i = 0; i < dev_cnt; i++) { |
| 798 | if (devs[i].fd != -1 && FD_ISSET(devs[i].fd, &rfds)) { |
| 799 | do_evdev_input(&devs[i]); |
| 800 | had_input = 1; |
| 801 | } |
| 802 | } |
| 803 | if (had_input) { |
| 804 | /* collect any other input changes before starting |
| 805 | * the slow USB transfer to teensy */ |
| 806 | tout.tv_sec = tout.tv_usec = 0; |
| 807 | timeout = &tout; |
| 808 | continue; |
| 809 | } |
| 810 | |
| 811 | /* something from USB? */ |
| 812 | if (FD_ISSET(dev.fd, &wfds)) |
| 813 | { |
| 814 | unsigned int which_urb; |
| 815 | |
| 816 | reaped_urb = NULL; |
| 817 | ret = ioctl(dev.fd, USBDEVFS_REAPURB, &reaped_urb); |
| 818 | if (ret != 0) { |
| 819 | if (errno == ENODEV) |
| 820 | goto dev_close; |
| 821 | perror("USBDEVFS_REAPURB"); |
| 822 | break; |
| 823 | } |
| 824 | which_urb = reaped_urb - urb; |
| 825 | if (which_urb < ARRAY_SIZE(urb)) |
| 826 | pending_urbs &= ~(1 << which_urb); |
| 827 | else { |
| 828 | fprintf(stderr, "reaped unknown urb: %p #%u", |
| 829 | reaped_urb, which_urb); |
| 830 | } |
| 831 | |
| 832 | if (reaped_urb != NULL && reaped_urb->status != 0) { |
| 833 | errno = -reaped_urb->status; |
| 834 | fprintf(stderr, "urb #%u: ", which_urb); |
| 835 | perror(""); |
| 836 | if (reaped_urb->status == -EILSEQ) { |
| 837 | /* this is usually a sign of disconnect.. */ |
| 838 | usleep(250000); |
| 839 | goto dev_close; |
| 840 | } |
| 841 | } |
| 842 | else if (reaped_urb == &urb[URB_DATA_IN]) |
| 843 | { |
| 844 | /* some request from teensy */ |
| 845 | printf("rx data?\n"); |
| 846 | } |
| 847 | else if (reaped_urb == &urb[URB_DATA_OUT]) |
| 848 | { |
| 849 | } |
| 850 | else if (reaped_urb == &urb[URB_DBG_IN]) |
| 851 | { |
| 852 | /* debug text */ |
| 853 | buf_dbg[reaped_urb->actual_length] = 0; |
| 854 | printf("%s", buf_dbg); |
| 855 | |
| 856 | // continue receiving debug before sending out stuff |
| 857 | tout.tv_sec = 0; |
| 858 | tout.tv_usec = 1000; |
| 859 | timeout = &tout; |
| 860 | continue; |
| 861 | } |
| 862 | else { |
| 863 | fprintf(stderr, "reaped unknown urb? %p #%zu\n", |
| 864 | reaped_urb, reaped_urb - urb); |
| 865 | } |
| 866 | } |
| 867 | |
| 868 | /* something to send? */ |
| 869 | if (pending_urbs & (1 << URB_DATA_OUT)) |
| 870 | // can't do that yet - out urb still busy |
| 871 | continue; |
| 872 | |
| 873 | if (mode_changed) { |
| 874 | memset(&pkt_out, 0, sizeof(pkt_out)); |
| 875 | pkt_out.type = PKT_UPD_MODE; |
| 876 | pkt_out.mode = mode; |
| 877 | |
| 878 | ret = submit_urb(dev.fd, &urb[URB_DATA_OUT], dev.ifaces[0].ep_out, |
| 879 | &pkt_out, sizeof(pkt_out)); |
| 880 | if (ret != 0) { |
| 881 | perror("USBDEVFS_SUBMITURB PKT_STREAM_ENABLE"); |
| 882 | continue; |
| 883 | } |
| 884 | pending_urbs |= 1 << URB_DATA_OUT; |
| 885 | mode_changed = 0; |
| 886 | continue; |
| 887 | } |
| 888 | |
| 889 | /* send buttons if there were any changes */ |
| 890 | memset(&pkt_out, 0, sizeof(pkt_out)); |
| 891 | for (i = 0; i < ARRAY_SIZE(players); i++) { |
| 892 | if (players[i].dirty) |
| 893 | pkt_out.changed_players |= 1 << i; |
| 894 | players[i].dirty = 0; |
| 895 | |
| 896 | pkt_out.bnts[i] = players[i].state; |
| 897 | } |
| 898 | if (pkt_out.changed_players != 0) { |
| 899 | pkt_out.type = PKT_UPD_BTNS; |
| 900 | |
| 901 | ret = submit_urb(dev.fd, &urb[URB_DATA_OUT], dev.ifaces[0].ep_out, |
| 902 | &pkt_out, sizeof(pkt_out)); |
| 903 | if (ret != 0) { |
| 904 | perror("USBDEVFS_SUBMITURB PKT_FIXED_STATE"); |
| 905 | break; |
| 906 | } |
| 907 | pending_urbs |= 1 << URB_DATA_OUT; |
| 908 | continue; |
| 909 | } |
| 910 | |
| 911 | continue; |
| 912 | |
| 913 | dev_close: |
| 914 | close(dev.fd); |
| 915 | dev.fd = -1; |
| 916 | } |
| 917 | |
| 918 | enable_echo(1); |
| 919 | |
| 920 | if (dev.fd != -1) { |
| 921 | /* deal with pending URBs */ |
| 922 | if (pending_urbs & (1 << URB_DATA_IN)) |
| 923 | ioctl(dev.fd, USBDEVFS_DISCARDURB, &urb[URB_DATA_IN]); |
| 924 | if (pending_urbs & (1 << URB_DBG_IN)) |
| 925 | ioctl(dev.fd, USBDEVFS_DISCARDURB, &urb[URB_DBG_IN]); |
| 926 | for (i = 0; i < URB_CNT; i++) { |
| 927 | if (pending_urbs & (1 << i)) { |
| 928 | ret = ioctl(dev.fd, USBDEVFS_REAPURB, &reaped_urb); |
| 929 | if (ret != 0) |
| 930 | perror("USBDEVFS_REAPURB"); |
| 931 | } |
| 932 | } |
| 933 | |
| 934 | close(dev.fd); |
| 935 | } |
| 936 | |
| 937 | return ret; |
| 938 | } |
| 939 | |
| 940 | // vim: ts=2:sw=2:expandtab |