git.oblomov.eu Git - xorg/acecad/blob - src/acecad.c

   1 /*
   2  * Copyright (c) 2001 Edouard TISSERANT <tissered@esstin.u-nancy.fr>
   3  * Parts inspired from Shane Watts <shane@bofh.asn.au> XFree86 3 Acecad Driver
   4  * Thanks to Emily, from AceCad, For giving me documents.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  20  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  21  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  *
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include "config.h"
  29 #endif
  30
  31 #include <xorg-server.h>
  32 #include <xorgVersion.h>
  33 #define XORG_VERSION_BOTCHED XORG_VERSION_NUMERIC(1,4,0,0,0)
  34 #if XORG_VERSION_CURRENT >= XORG_VERSION_BOTCHED
  35 #define XORG_BOTCHED_INPUT 1
  36 #else
  37 #define XORG_BOTCHED_INPUT 0
  38 #endif
  39
  40 /*****************************************************************************
  41  *      Standard Headers
  42  ****************************************************************************/
  43
  44 #ifdef HAVE_LINUX_INPUT_H
  45 #include <asm/types.h>
  46 #include <linux/input.h>
  47 #ifndef EV_SYN
  48 #define EV_SYN EV_RST
  49 #define SYN_REPORT 0
  50 #endif
  51 #ifdef BUS_PCI
  52 #undef BUS_PCI
  53 #endif
  54 #ifdef BUS_ISA
  55 #undef BUS_ISA
  56 #endif
  57 #endif
  58
  59 #include <misc.h>
  60 #include <xf86.h>
  61 #ifndef NEED_XF86_TYPES
  62 #define NEED_XF86_TYPES
  63 #endif
  64 #include <xf86_OSproc.h>
  65 #include <xisb.h>
  66 #include <xf86Xinput.h>
  67 #include <exevents.h>
  68 #include <xf86Module.h>
  69
  70 #include <string.h>
  71 #include <stdio.h>
  72
  73 #include <errno.h>
  74 #ifdef HAVE_LINUX_INPUT_H
  75 #include <fcntl.h>
  76 #ifdef HAVE_SYSFS_LIBSYSFS_H
  77 #include <sysfs/libsysfs.h>
  78 #include <dlfcn.h>
  79 #endif
  80 #endif
  81
  82 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
  83 #include <X11/Xatom.h>
  84 #include <xserver-properties.h>
  85 #endif
  86
  87 /* Previously found in xf86Xinput.h */
  88 #ifdef DBG
  89 #undef DBG
  90 #endif
  91 #define DBG(lvl, f) {if ((lvl) <= xf86GetVerbosity()) f;}
  92
  93 /*****************************************************************************
  94  *      Local Headers
  95  ****************************************************************************/
  96 #include "acecad.h"
  97
  98 /*****************************************************************************
  99  *      Variables without includable headers
 100  ****************************************************************************/
 101
 102 /*****************************************************************************
 103  *      Local Variables
 104  ****************************************************************************/
 105
 106 /* max number of input events to read in one read call */
 107 #define MAX_EVENTS 50
 108
 109 static const char *default_options[] =
 110 {
 111         "BaudRate", "9600",
 112         "StopBits", "1",
 113         "DataBits", "8",
 114         "Parity", "Odd",
 115         "Vmin", "1",
 116         "Vtime", "10",
 117         "FlowControl", "Xoff",
 118         NULL
 119 };
 120
 121 _X_EXPORT InputDriverRec ACECAD =
 122 {
 123         1,
 124         "acecad",
 125         NULL,
 126         AceCadPreInit,
 127         NULL,
 128         NULL,
 129 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
 130         default_options
 131 #endif
 132 };
 133
 134 static XF86ModuleVersionInfo VersionRec =
 135 {
 136         "acecad",
 137         MODULEVENDORSTRING,
 138         MODINFOSTRING1,
 139         MODINFOSTRING2,
 140         XORG_VERSION_CURRENT,
 141         PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
 142         ABI_CLASS_XINPUT,
 143         ABI_XINPUT_VERSION,
 144         MOD_CLASS_XINPUT,
 145         {0, 0, 0, 0}
 146 };
 147
 148
 149 _X_EXPORT XF86ModuleData acecadModuleData = {
 150         &VersionRec,
 151         SetupProc,
 152         TearDownProc
 153 };
 154
 155 /*****************************************************************************
 156  *      Function Definitions
 157  ****************************************************************************/
 158
 159 static pointer
 160 SetupProc(      pointer module,
 161                 pointer options,
 162                 int *errmaj,
 163                 int *errmin )
 164 {
 165         xf86AddInputDriver(&ACECAD, module, 0);
 166         return module;
 167 }
 168
 169 static void
 170 TearDownProc( pointer p )
 171 {
 172 }
 173
 174 #ifdef HAVE_LINUX_INPUT_H
 175 static int
 176 IsUSBLine(int fd)
 177 {
 178     int version;
 179     int err;
 180
 181     SYSCALL(err = ioctl(fd, EVIOCGVERSION, &version));
 182
 183     if (!err) {
 184         xf86MsgVerb(X_PROBED, 4, "Kernel Input driver version is %d.%d.%d\n",
 185                 version >> 16, (version >> 8) & 0xff, version & 0xff);
 186         return 1;
 187     } else {
 188         xf86MsgVerb(X_PROBED, 4, "No Kernel Input driver found\n");
 189         return 0;
 190     }
 191 }
 192
 193 /* Heavily inspired by synaptics/eventcomm.c */
 194
 195 #define DEV_INPUT_EVENT "/dev/input/event"
 196 #define EV_DEV_NAME_MAXLEN 64
 197 #define SET_EVENT_NUM(str, num) \
 198     snprintf(str, EV_DEV_NAME_MAXLEN, "%s%d", DEV_INPUT_EVENT, num)
 199
 200 static Bool
 201 fd_query_acecad(int fd, char *ace_name) {
 202     char name[256] = "Unknown";
 203     int cmp_at = strlen(ace_name);
 204     if (cmp_at > 255)
 205         cmp_at = 255;
 206     ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 207     name[cmp_at] = '\0';
 208     if (xf86NameCmp(name, ace_name) == 0)
 209         return TRUE;
 210     return FALSE;
 211 }
 212
 213 static char ace_name_default[7] = "acecad";
 214
 215 #ifdef HAVE_SYSFS_LIBSYSFS_H
 216 static char usb_bus_name[4] = "usb";
 217 static char acecad_driver_name[11] = "usb_acecad";
 218 #endif
 219
 220 static Bool
 221 AceCadAutoDevProbe(InputInfoPtr local, int verb)
 222 {
 223     /* We are trying to find the right eventX device */
 224     int i = 0;
 225     Bool have_evdev = FALSE;
 226     int noent_cnt = 0;
 227     const int max_skip = 10;
 228     char *ace_name = xf86FindOptionValue(local->options, "Name");
 229     char fname[EV_DEV_NAME_MAXLEN];
 230     int np;
 231
 232 #ifdef HAVE_SYSFS_LIBSYSFS_H
 233     struct sysfs_bus *usb_bus = NULL;
 234     struct sysfs_driver *acecad_driver = NULL;
 235     struct sysfs_device *candidate = NULL;
 236     char *link = NULL;
 237     struct dlist *devs = NULL;
 238     struct dlist *links = NULL;
 239
 240     xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 241     usb_bus = sysfs_open_bus(usb_bus_name);
 242     if (usb_bus) {
 243         xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 244         acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 245         if (acecad_driver) {
 246             xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 247             devs = sysfs_get_driver_devices(acecad_driver);
 248             if (devs) {
 249                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 250                 dlist_for_each_data(devs, candidate, struct sysfs_device) {
 251                     xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 252                     links = sysfs_open_link_list(candidate->path);
 253                     dlist_for_each_data(links, link, char) {
 254                         if (sscanf(link, "input:event%d", &i) == 1) {
 255                             xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 256                             break;
 257                         }
 258                     }
 259                     sysfs_close_list(links);
 260                     if (i > 0) /* We found something */
 261                         break;
 262                 }
 263             } else
 264                 xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 265         } else
 266             xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 267     } else
 268         xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 269     sysfs_close_bus(usb_bus);
 270
 271     if (i > 0) {
 272         /* We found something */
 273         np = SET_EVENT_NUM(fname, i);
 274         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 275             xf86MsgVerb(X_WARNING, verb, "%s: unable to manage event device %d\n", local->name, i);
 276         } else {
 277             goto ProbeFound;
 278         }
 279     } else
 280         xf86MsgVerb(X_WARNING, verb, "%s: no Acecad devices found via sysfs\n", local->name);
 281
 282 #endif
 283
 284     if (!ace_name)
 285         ace_name = ace_name_default;
 286
 287     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 288     for (i = 0; ; i++) {
 289         int fd = -1;
 290         Bool is_acecad;
 291
 292         np = SET_EVENT_NUM(fname, i);
 293         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 294             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 295             break;
 296         }
 297         SYSCALL(fd = open(fname, O_RDONLY));
 298         if (fd < 0) {
 299             if (errno == ENOENT) {
 300                 if (++noent_cnt >= max_skip)
 301                     break;
 302                 else
 303                     continue;
 304             } else {
 305                 continue;
 306             }
 307         }
 308         noent_cnt = 0;
 309         have_evdev = TRUE;
 310         is_acecad = fd_query_acecad(fd, ace_name);
 311         SYSCALL(close(fd));
 312         if (is_acecad) {
 313             goto ProbeFound;
 314         }
 315     }
 316     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 317             local->name, i + 1, ace_name);
 318     if (i <= max_skip)
 319         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 320                 local->name);
 321     if (i > max_skip && !have_evdev)
 322         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 323     return FALSE;
 324
 325 ProbeFound:
 326     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 327             local->name, fname);
 328     xf86ReplaceStrOption(local->options, "Device", fname);
 329     return TRUE;
 330 }
 331
 332 #endif
 333
 334 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 12
 335 static int NewAceCadPreInit(InputDriverPtr drv, InputInfoPtr dev, int flags);
 336
 337 static InputInfoPtr
 338 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 339 {
 340     InputInfoPtr local = xf86AllocateInput(drv, 0);
 341     AceCadPrivatePtr priv = calloc (1, sizeof(AceCadPrivateRec));
 342
 343     if ((!local))
 344         goto SetupProc_fail;
 345
 346     local->name = dev->identifier;
 347     local->type_name = XI_TABLET;
 348     local->flags = XI86_SEND_DRAG_EVENTS;
 349 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 350     local->motion_history_proc = xf86GetMotionEvents;
 351 #endif
 352     local->control_proc = NULL;
 353     local->switch_mode = NULL;
 354     local->conversion_proc = ConvertProc;
 355     local->reverse_conversion_proc = ReverseConvertProc;
 356     local->dev = NULL;
 357     local->private = priv;
 358     local->private_flags = 0;
 359     local->conf_idev = dev;
 360     /*local->always_core_feedback = 0;*/
 361
 362     xf86CollectInputOptions(local, default_options, NULL);
 363
 364     xf86OptionListReport(local->options);
 365
 366     if (NewAceCadPreInit(drv, local, flags) == Success)
 367         return local;
 368
 369 SetupProc_fail:
 370     return NULL;
 371 }
 372
 373 static int
 374 NewAceCadPreInit(InputDriverPtr drv, InputInfoPtr local, int flags)
 375 #else
 376 static int
 377 AceCadPreInit(InputDriverPtr drv, InputInfoPtr local, int flags)
 378 #endif
 379 {
 380     AceCadPrivatePtr priv = calloc (1, sizeof(AceCadPrivateRec));
 381     int speed;
 382     int msgtype;
 383     char *s;
 384
 385     if (!priv)
 386         return BadAlloc;
 387
 388     memset(priv, 0, sizeof(AceCadPrivateRec));
 389
 390     local->device_control = DeviceControl;
 391
 392     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 393
 394     s = xf86FindOptionValue(local->options, "Device");
 395     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 396 #ifdef HAVE_LINUX_INPUT_H
 397         priv->flags |= AUTODEV_FLAG;
 398         if (!AceCadAutoDevProbe(local, 0))
 399         {
 400             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 401             goto SetupProc_fail;
 402         }
 403 #else
 404         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 405         goto SetupProc_fail;
 406 #endif
 407     }
 408
 409     local->fd = xf86OpenSerial (local->options);
 410     if (local->fd == -1)
 411     {
 412         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 413         goto SetupProc_fail;
 414     }
 415     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 416
 417 #ifdef HAVE_LINUX_INPUT_H
 418     if (IsUSBLine(local->fd)) {
 419         priv->flags |= USB_FLAG;
 420
 421         local->read_input = USBReadInput;
 422
 423         if (USBQueryHardware(local) != Success)
 424         {
 425             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 426             goto SetupProc_fail;
 427         }
 428     } else
 429 #endif
 430     {
 431         local->read_input = ReadInput;
 432
 433         msgtype = X_DEFAULT;
 434         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 435             msgtype = X_CONFIG;
 436             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 437         } else {
 438             speed = 85;
 439         }
 440
 441         switch (speed)
 442         {
 443             case 120:
 444                 priv->acecadReportSpeed = 'Q';
 445                 break;
 446             case 85:
 447                 priv->acecadReportSpeed = 'R';
 448                 break;
 449             case 10:
 450                 priv->acecadReportSpeed = 'S';
 451                 break;
 452             case 2:
 453                 priv->acecadReportSpeed = 'T';
 454                 break;
 455             default:
 456                 priv->acecadReportSpeed = 'R';
 457                 speed = 85;
 458                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 459                 msgtype = X_DEFAULT;
 460         }
 461
 462         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 463
 464         priv->buffer = XisbNew (local->fd, 200);
 465
 466         /*
 467          * Verify that hardware is attached and fuctional
 468          */
 469         if (QueryHardware(priv) != Success)
 470         {
 471             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 472             goto SetupProc_fail;
 473         }
 474     }
 475
 476     s = xf86FindOptionValue(local->options, "Mode");
 477     msgtype = s ? X_CONFIG : X_DEFAULT;
 478     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 479     {
 480         priv->flags |= ABSOLUTE_FLAG;
 481     }
 482
 483     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 484     DBG (9, XisbTrace (priv->buffer, 1));
 485
 486     xf86ProcessCommonOptions(local, local->options);
 487
 488 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 12
 489     local->flags |= XI86_CONFIGURED;
 490 #endif
 491
 492     if (local->fd != -1)
 493     {
 494         RemoveEnabledDevice (local->fd);
 495         if (priv->buffer)
 496         {
 497             XisbFree(priv->buffer);
 498             priv->buffer = NULL;
 499         }
 500         xf86CloseSerial(local->fd);
 501     }
 502     RemoveEnabledDevice (local->fd);
 503     local->fd = -1;
 504     return Success;
 505
 506     /*
 507      * If something went wrong, cleanup and return NULL
 508      */
 509 SetupProc_fail:
 510     if ((local) && (local->fd))
 511         xf86CloseSerial (local->fd);
 512     if ((priv) && (priv->buffer))
 513         XisbFree (priv->buffer);
 514     if (priv) {
 515         free (priv);
 516         if (local)
 517                 local->private = NULL;
 518     }
 519     xf86DeleteInput(local, 0);
 520     return BadAlloc;
 521 }
 522
 523 static Bool
 524 DeviceControl (DeviceIntPtr dev, int mode)
 525 {
 526     Bool RetValue;
 527
 528     switch (mode)
 529     {
 530         case DEVICE_INIT:
 531             DeviceInit(dev);
 532             RetValue = Success;
 533             break;
 534         case DEVICE_ON:
 535             RetValue = DeviceOn(dev);
 536             break;
 537         case DEVICE_OFF:
 538             RetValue = DeviceOff(dev);
 539             break;
 540         case DEVICE_CLOSE:
 541             RetValue = DeviceClose(dev);
 542             break;
 543         default:
 544             RetValue = BadValue;
 545     }
 546
 547     return RetValue;
 548 }
 549
 550 static Bool
 551 DeviceOn (DeviceIntPtr dev)
 552 {
 553     char buffer[256];
 554     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 555     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 556
 557     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 558
 559     local->fd = xf86OpenSerial(local->options);
 560     if (local->fd == -1)
 561     {
 562         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 563         priv->flags &= ~AVAIL_FLAG;
 564 #ifdef HAVE_LINUX_INPUT_H
 565         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 566             local->fd = xf86OpenSerial(local->options);
 567         if (local->fd == -1)
 568 #endif
 569             return !Success;
 570     }
 571     priv->flags |= AVAIL_FLAG;
 572
 573
 574     if (!(priv->flags & USB_FLAG)) {
 575         priv->buffer = XisbNew(local->fd, 200);
 576         if (!priv->buffer)
 577         {
 578             xf86CloseSerial(local->fd);
 579             local->fd = -1;
 580             return !Success;
 581         }
 582
 583         /* Rets qu'a l'envoyer a la tablette */
 584         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 585         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 586     }
 587
 588     xf86FlushInput(local->fd);
 589     xf86AddEnabledDevice (local);
 590     dev->public.on = TRUE;
 591     return Success;
 592 }
 593
 594 static Bool
 595 DeviceOff (DeviceIntPtr dev)
 596 {
 597     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 598     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 599
 600     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 601
 602     if (local->fd != -1)
 603     {
 604         RemoveEnabledDevice (local->fd);
 605         if (priv->buffer)
 606         {
 607             XisbFree(priv->buffer);
 608             priv->buffer = NULL;
 609         }
 610         xf86CloseSerial(local->fd);
 611     }
 612
 613
 614     xf86RemoveEnabledDevice (local);
 615     dev->public.on = FALSE;
 616     return Success;
 617 }
 618
 619 static Bool
 620 DeviceClose (DeviceIntPtr dev)
 621 {
 622     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 623
 624     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 625
 626     return Success;
 627 }
 628
 629 static void
 630 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 631 {
 632     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 633
 634     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 635 }
 636
 637 static Bool
 638 DeviceInit (DeviceIntPtr dev)
 639 {
 640     int rx, ry;
 641     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 642     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 643     unsigned char map[] = {0, 1, 2, 3};
 644     int history_size;
 645 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 646     Atom btn_labels[3];
 647     Atom axes_labels[3];
 648
 649     btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
 650     btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
 651     btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
 652
 653     if ((priv->flags & ABSOLUTE_FLAG))
 654     {
 655         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
 656         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
 657         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_PRESSURE);
 658     } else
 659     {
 660         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
 661         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
 662         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Z);
 663     }
 664 #endif
 665
 666     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 667
 668     /* 3 boutons */
 669     if (InitButtonClassDeviceStruct (dev, 3,
 670 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 671                 btn_labels,
 672 #endif
 673                 map) == FALSE)
 674     {
 675         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 676         return !Success;
 677     }
 678
 679     if (InitFocusClassDeviceStruct (dev) == FALSE)
 680     {
 681         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 682         return !Success;
 683     }
 684
 685     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 686         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 687         return !Success;
 688     }
 689
 690     history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 691
 692     /* 3 axes */
 693     if (InitValuatorClassDeviceStruct (dev, 3,
 694 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 695                 axes_labels,
 696 #endif
 697 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 3
 698                 xf86GetMotionEvents,
 699 #endif
 700                 history_size,
 701                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 702             == FALSE)
 703     {
 704         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 705         return !Success;
 706     }
 707     else
 708     {
 709
 710         InitValuatorAxisStruct(dev,
 711                 0,
 712 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 713                 axes_labels[0],
 714 #endif
 715                 0,                      /* min val */
 716 #if XORG_BOTCHED_INPUT
 717                 screenInfo.screens[0]->width,
 718 #else
 719                 priv->acecadMaxX,       /* max val */
 720 #endif
 721                 1000,                   /* resolution */
 722                 0,                      /* min_res */
 723                 1000                    /* max_res */
 724 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
 725                 , Absolute
 726 #endif
 727                 );
 728         InitValuatorAxisStruct(dev,
 729                 1,
 730 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 731                 axes_labels[1],
 732 #endif
 733                 0,                      /* min val */
 734 #if XORG_BOTCHED_INPUT
 735                 screenInfo.screens[0]->height,
 736 #else
 737                 priv->acecadMaxY,       /* max val */
 738 #endif
 739                 1000,                   /* resolution */
 740                 0,                      /* min_res */
 741                 1000                    /* max_res */
 742 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
 743                 , Absolute
 744 #endif
 745                 );
 746         InitValuatorAxisStruct(dev,
 747                 2,
 748 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 749                 axes_labels[2],
 750 #endif
 751                 0,                      /* min val */
 752                 priv->acecadMaxZ,       /* max val */
 753                 1000,                   /* resolution */
 754                 0,                      /* min_res */
 755                 1000            /* max_res */
 756 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
 757                 , Absolute
 758 #endif
 759                 );
 760
 761     }
 762
 763     if (InitProximityClassDeviceStruct (dev) == FALSE)
 764     {
 765         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 766         return !Success;
 767     }
 768
 769     xf86MotionHistoryAllocate (local);
 770
 771
 772     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 773        connaitre la taille... */
 774
 775     if (priv->acecadInc > 95)
 776         priv->acecadInc = 95;
 777     if (priv->acecadInc < 1)
 778     {
 779         /* guess the best increment value given video mode */
 780         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 781         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 782         if (rx < ry)
 783             priv->acecadInc = rx;
 784         else
 785             priv->acecadInc = ry;
 786         if (priv->acecadInc < 1)
 787             priv->acecadInc = 1;
 788     }
 789
 790     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 791
 792     return Success;
 793 }
 794
 795 static void
 796 ReadInput (InputInfoPtr local)
 797 {
 798     int x, y, z;
 799     int prox, buttons;
 800     int is_core_pointer = 0, is_absolute;
 801     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 802
 803     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 804
 805     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 806 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 807     is_core_pointer = xf86IsCorePointer(local->dev);
 808 #endif
 809
 810     /*
 811      * set blocking to -1 on the first call because we know there is data to
 812      * read. Xisb automatically clears it after one successful read so that
 813      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 814      * read from blocking indefinately.
 815      */
 816     XisbBlockDuration (priv->buffer, -1);
 817
 818     while (AceCadGetPacket (priv) == Success)
 819     {
 820         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 821         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 822
 823         if (!(priv->flags & ABSOLUTE_FLAG))
 824         {
 825             x = priv->packet[0] & XSIGN_BIT? x:-x;
 826             y = priv->packet[0] & YSIGN_BIT? y:-y;
 827         }
 828         else
 829         {
 830             y = priv->acecadMaxY - y ;
 831         }
 832
 833
 834         z = ((int)priv->packet[5] << 2) |
 835             (((int)priv->packet[6] & 0x01) << 1) |
 836             (((int)priv->packet[6] & 0x10) >> 4);
 837
 838         buttons = ((int)priv->packet[0] & 0x07) |
 839             ((int)priv->packet[6] & 0x02 << 2);
 840
 841         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 842
 843         if (prox)
 844         {
 845             if (!(priv->acecadOldProximity))
 846                 if (!is_core_pointer)
 847                 {
 848                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 849                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 850                 }
 851
 852             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 853                     || (!is_absolute && (x || y)))
 854             {
 855                 if (is_absolute || priv->acecadOldProximity)
 856                 {
 857                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 858                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 859                 }
 860             }
 861
 862             if (priv->acecadOldButtons != buttons)
 863             {
 864                 int delta = buttons ^ priv->acecadOldButtons;
 865                 while (delta)
 866                 {
 867                     int id = ffs(delta);
 868                     delta &= ~(1 << (id-1));
 869
 870                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 871                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 872                 }
 873             }
 874
 875             priv->acecadOldButtons = buttons;
 876             priv->acecadOldX = x;
 877             priv->acecadOldY = y;
 878             priv->acecadOldZ = z;
 879             priv->acecadOldProximity = prox;
 880         }
 881         else
 882         {
 883             if (!is_core_pointer)
 884                 if (priv->acecadOldProximity)
 885                 {
 886                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 887                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 888                 }
 889             priv->acecadOldProximity = 0;
 890         }
 891     }
 892     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 893 }
 894
 895 #ifdef HAVE_LINUX_INPUT_H
 896 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 897 static void
 898 USBReadInput (InputInfoPtr local)
 899 {
 900     int len;
 901     struct input_event * event;
 902     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 903     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 904     int x = priv->acecadOldX;
 905     int y = priv->acecadOldY;
 906     int z = priv->acecadOldZ;
 907     int report_x, report_y;
 908     int prox = priv->acecadOldProximity;
 909     int buttons = priv->acecadOldButtons;
 910     int is_core_pointer = 0;
 911 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 912     is_core_pointer = xf86IsCorePointer(local->dev);
 913 #endif
 914     /* Is autodev active? */
 915     int autodev = priv->flags & AUTODEV_FLAG;
 916     /* Was the device available last time we checked? */
 917     int avail = priv->flags & AVAIL_FLAG;
 918
 919     SYSCALL(len = xf86ReadSerial(local->fd, eventbuf, sizeof(eventbuf)));
 920
 921     if (len <= 0) {
 922         if (avail) {
 923             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 924         }
 925         if (NOTAVAIL) {
 926             priv->flags &= ~AVAIL_FLAG;
 927             if(autodev) {
 928                 if (AceCadAutoDevProbe(local, 4)) {
 929                     DeviceOff(local->dev);
 930                     DeviceOn(local->dev);
 931                 }
 932             }
 933         }
 934         return;
 935     } else {
 936         if (!avail) {
 937             /* If the device wasn't available last time we checked */
 938             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 939             priv->flags |= AVAIL_FLAG;
 940         }
 941     }
 942
 943     for (event = (struct input_event *)eventbuf;
 944             event < (struct input_event *)(eventbuf+len); event++) {
 945
 946         switch (event->type) {
 947             case EV_SYN: /* 2.6.x */
 948                 if (event->code != SYN_REPORT)
 949                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 950                 break;
 951             case EV_ABS:
 952                 switch (event->code) {
 953                     case ABS_X:
 954                         x = event->value;
 955                         break;
 956
 957                     case ABS_Y:
 958                         y = event->value;
 959                         break;
 960
 961                     case ABS_PRESSURE:
 962                         z = event->value;
 963                         break;
 964
 965                     case ABS_MISC:
 966                         break;
 967
 968                 }
 969                 break; /* EV_ABS */
 970
 971             case EV_KEY:
 972                 switch (event->code) {
 973                     case BTN_TOOL_PEN:
 974                         prox = event->value;
 975                         break;
 976
 977                     case BTN_TOUCH:
 978                         buttons = set_bit(buttons,0,event->value);
 979                         break;
 980
 981                     case BTN_STYLUS:
 982                         buttons = set_bit(buttons,1,event->value);
 983                         break;
 984
 985                     case BTN_STYLUS2:
 986                         buttons = set_bit(buttons,2,event->value);
 987                         break;
 988                 }
 989                 break; /* EV_KEY */
 990             default:
 991                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 992         } /* switch event->type */
 993
 994         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 995          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 996          */
 997         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 998                     (event->type == EV_ABS && event->code == ABS_MISC)
 999              )) {
1000             continue;
1001         }
1002
1003         if (prox)
1004         {
1005 #if XORG_BOTCHED_INPUT
1006             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
1007 #else
1008             report_x = x;
1009             report_y = y;
1010 #endif
1011             if (!(priv->acecadOldProximity))
1012                 if (!is_core_pointer)
1013                 {
1014                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
1015                 }
1016
1017
1018             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
1019
1020             if (priv->acecadOldButtons != buttons)
1021             {
1022                 int delta = buttons ^ priv->acecadOldButtons;
1023                 while (delta)
1024                 {
1025                     int id = ffs(delta);
1026                     delta &= ~(1 << (id-1));
1027
1028                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
1029                 }
1030             }
1031         }
1032         else
1033         {
1034             if (!is_core_pointer)
1035                 if (priv->acecadOldProximity)
1036                 {
1037                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
1038                 }
1039             priv->acecadOldProximity = 0;
1040         }
1041
1042         priv->acecadOldButtons = buttons;
1043         priv->acecadOldX = x;
1044         priv->acecadOldY = y;
1045         priv->acecadOldZ = z;
1046         priv->acecadOldProximity = prox;
1047     }
1048     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
1049 }
1050 #endif
1051
1052 /*
1053  * The ConvertProc function may need to be tailored for your device.
1054  * This function converts the device's valuator outputs to x and y coordinates
1055  * to simulate mouse events.
1056  */
1057 static Bool
1058 ConvertProc (InputInfoPtr local, int first, int num,
1059         int v0, int v1, int v2, int v3, int v4, int v5,
1060         int *x, int *y)
1061 {
1062     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1063
1064     /* TODO: should have a structure to hold which screen the
1065      * pointer is attached to? */
1066     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1067     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1068     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1069     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1070     return TRUE;
1071 }
1072
1073
1074 static Bool
1075 ReverseConvertProc (InputInfoPtr local,
1076         int x, int  y,
1077         int *valuators)
1078 {
1079     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1080
1081     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
1082     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1083     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1084     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
1085
1086     return TRUE;
1087 }
1088
1089
1090 #define WriteString(str)\
1091     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1092
1093
1094 static Bool
1095 QueryHardware (AceCadPrivatePtr priv)
1096 {
1097
1098     /* Reset */
1099     WriteString("z0");
1100
1101     /* Wait */
1102     milisleep (250);
1103
1104     /* Prompt Mode in order to not be disturbed */
1105     WriteString(ACECAD_PROMPT_MODE);
1106
1107     /* Flush */
1108     while (XisbRead(priv->buffer) >= 0);
1109
1110     /* Ask for Config packet*/
1111     WriteString(ACECAD_CONFIG);
1112
1113     /* Read the packet */
1114     XisbBlockDuration (priv->buffer, 1000000);
1115     NewPacket (priv);
1116
1117     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1118
1119     if ((AceCadGetPacket (priv) == Success))
1120     {
1121         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1122         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1123         priv->acecadMaxZ = 512;
1124         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1125     }
1126     else
1127         return !Success;
1128
1129     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1130     return Success;
1131 }
1132
1133 #define BITS_PER_LONG (sizeof(long) * 8)
1134 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1135 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1136 #define OFF(x)  ((x)%BITS_PER_LONG)
1137 #define LONG(x) ((x)/BITS_PER_LONG)
1138
1139 #ifdef HAVE_LINUX_INPUT_H
1140 static Bool
1141 USBQueryHardware (InputInfoPtr local)
1142 {
1143     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1144     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1145     int                 i, j;
1146     int                 abs[5];
1147     char                name[256] = "Unknown";
1148
1149     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1150     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1151
1152     memset(bit, 0, sizeof(bit));
1153     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1154
1155     for (i = 0; i < EV_MAX; i++)
1156         if (test_bit(i, bit[0])) {
1157             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1158             for (j = 0; j < KEY_MAX; j++)
1159                 if (test_bit(j, bit[i])) {
1160                     if (i == EV_ABS) {
1161                         ioctl(local->fd, EVIOCGABS(j), abs);
1162                         switch (j) {
1163                             case ABS_X:
1164                                 priv->acecadMaxX = abs[2];
1165                                 break;
1166
1167                             case ABS_Y:
1168                                 priv->acecadMaxY = abs[2];
1169                                 break;
1170
1171                             case ABS_PRESSURE:
1172                                 priv->acecadMaxZ = abs[2];
1173                                 break;
1174                         }
1175                     }
1176                 }
1177         }
1178
1179     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1180     return Success;
1181 }
1182 #endif
1183
1184 static void
1185 NewPacket (AceCadPrivatePtr priv)
1186 {
1187     priv->packeti = 0;
1188 }
1189
1190 static Bool
1191 AceCadGetPacket (AceCadPrivatePtr priv)
1192 {
1193     int count = 0;
1194     int c = 0;
1195
1196     while((c = XisbRead(priv->buffer)) >= 0 )
1197     {
1198
1199         /*
1200          * fail after 500 bytes so the server doesn't hang forever if a
1201          * device sends bad data.
1202          */
1203         if (count++ > 500)
1204         {
1205             NewPacket (priv);
1206             return !Success;
1207         }
1208
1209         if (c & PHASING_BIT)
1210         {
1211             NewPacket(priv);
1212
1213             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1214             XisbBlockDuration (priv->buffer, 10000);
1215             priv->packet[priv->packeti++] = c;
1216             count = ACECAD_PACKET_SIZE - 1;
1217             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1218             {
1219                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1220                 priv->packet[priv->packeti++] = c;
1221             }
1222             XisbBlockDuration (priv->buffer, 0);
1223             if(c > 0)
1224                 return Success;
1225         }
1226     }
1227     return !Success;
1228 }