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 #include "config.h"
  28
  29 #include <xorgVersion.h>
  30 #define XORG_VERSION_BOTCHED XORG_VERSION_NUMERIC(1,4,0,0,0)
  31 #if XORG_VERSION_CURRENT >= XORG_VERSION_BOTCHED
  32 #define XORG_BOTCHED_INPUT 1
  33 #else
  34 #define XORG_BOTCHED_INPUT 0
  35 #endif
  36
  37 /*****************************************************************************
  38  *      Standard Headers
  39  ****************************************************************************/
  40
  41 #ifdef LINUX_INPUT
  42 #include <asm/types.h>
  43 #include <linux/input.h>
  44 #ifndef EV_SYN
  45 #define EV_SYN EV_RST
  46 #define SYN_REPORT 0
  47 #endif
  48 #ifdef BUS_PCI
  49 #undef BUS_PCI
  50 #endif
  51 #ifdef BUS_ISA
  52 #undef BUS_ISA
  53 #endif
  54 #endif
  55
  56 #include <misc.h>
  57 #include <xf86.h>
  58 #ifndef NEED_XF86_TYPES
  59 #define NEED_XF86_TYPES
  60 #endif
  61 #include <xf86_OSproc.h>
  62 #include <xisb.h>
  63 #include <xf86Xinput.h>
  64 #include <exevents.h>
  65 #include <xf86Module.h>
  66
  67 #include <string.h>
  68 #include <stdio.h>
  69
  70 #include <errno.h>
  71 #ifdef LINUX_INPUT
  72 #include <fcntl.h>
  73 #ifdef LINUX_SYSFS
  74 #include <sysfs/libsysfs.h>
  75 #include <dlfcn.h>
  76 #endif
  77 #endif
  78
  79 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
  80 #include <X11/Xatom.h>
  81 #include <xserver-properties.h>
  82 #endif
  83
  84 /* Previously found in xf86Xinput.h */
  85 #ifdef DBG
  86 #undef DBG
  87 #endif
  88 #define DBG(lvl, f) {if ((lvl) <= xf86GetVerbosity()) f;}
  89
  90 /*****************************************************************************
  91  *      Local Headers
  92  ****************************************************************************/
  93 #include "acecad.h"
  94
  95 /*****************************************************************************
  96  *      Variables without includable headers
  97  ****************************************************************************/
  98
  99 /*****************************************************************************
 100  *      Local Variables
 101  ****************************************************************************/
 102
 103 /* max number of input events to read in one read call */
 104 #define MAX_EVENTS 50
 105
 106 _X_EXPORT InputDriverRec ACECAD =
 107 {
 108         1,
 109         "acecad",
 110         NULL,
 111         AceCadPreInit,
 112         NULL,
 113         NULL,
 114         0
 115 };
 116
 117 static XF86ModuleVersionInfo VersionRec =
 118 {
 119         "acecad",
 120         MODULEVENDORSTRING,
 121         MODINFOSTRING1,
 122         MODINFOSTRING2,
 123         XORG_VERSION_CURRENT,
 124         PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
 125         ABI_CLASS_XINPUT,
 126         ABI_XINPUT_VERSION,
 127         MOD_CLASS_XINPUT,
 128         {0, 0, 0, 0}
 129 };
 130
 131
 132 _X_EXPORT XF86ModuleData acecadModuleData = {
 133         &VersionRec,
 134         SetupProc,
 135         TearDownProc
 136 };
 137
 138 /*****************************************************************************
 139  *      Function Definitions
 140  ****************************************************************************/
 141
 142 static pointer
 143 SetupProc(      pointer module,
 144                 pointer options,
 145                 int *errmaj,
 146                 int *errmin )
 147 {
 148         xf86AddInputDriver(&ACECAD, module, 0);
 149         return module;
 150 }
 151
 152 static void
 153 TearDownProc( pointer p )
 154 {
 155 }
 156
 157 static const char *default_options[] =
 158 {
 159         "BaudRate", "9600",
 160         "StopBits", "1",
 161         "DataBits", "8",
 162         "Parity", "Odd",
 163         "Vmin", "1",
 164         "Vtime", "10",
 165         "FlowControl", "Xoff",
 166         NULL
 167 };
 168
 169 #ifdef LINUX_INPUT
 170 static int
 171 IsUSBLine(int fd)
 172 {
 173     int version;
 174     int err;
 175
 176     SYSCALL(err = ioctl(fd, EVIOCGVERSION, &version));
 177
 178     if (!err) {
 179         xf86MsgVerb(X_PROBED, 4, "Kernel Input driver version is %d.%d.%d\n",
 180                 version >> 16, (version >> 8) & 0xff, version & 0xff);
 181         return 1;
 182     } else {
 183         xf86MsgVerb(X_PROBED, 4, "No Kernel Input driver found\n");
 184         return 0;
 185     }
 186 }
 187
 188 /* Heavily inspired by synaptics/eventcomm.c */
 189
 190 #define DEV_INPUT_EVENT "/dev/input/event"
 191 #define EV_DEV_NAME_MAXLEN 64
 192 #define SET_EVENT_NUM(str, num) \
 193     snprintf(str, EV_DEV_NAME_MAXLEN, "%s%d", DEV_INPUT_EVENT, num)
 194
 195 static Bool
 196 fd_query_acecad(int fd, char *ace_name) {
 197     char name[256] = "Unknown";
 198     int cmp_at = strlen(ace_name);
 199     if (cmp_at > 255)
 200         cmp_at = 255;
 201     ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 202     name[cmp_at] = '\0';
 203     if (xf86NameCmp(name, ace_name) == 0)
 204         return TRUE;
 205     return FALSE;
 206 }
 207
 208 static char ace_name_default[7] = "acecad";
 209
 210 #ifdef LINUX_SYSFS
 211 static char usb_bus_name[4] = "usb";
 212 static char acecad_driver_name[11] = "usb_acecad";
 213 #endif
 214
 215 static Bool
 216 AceCadAutoDevProbe(LocalDevicePtr local, int verb)
 217 {
 218     /* We are trying to find the right eventX device */
 219     int i = 0;
 220     Bool have_evdev = FALSE;
 221     int noent_cnt = 0;
 222     const int max_skip = 10;
 223     char *ace_name = xf86FindOptionValue(local->options, "Name");
 224     char fname[EV_DEV_NAME_MAXLEN];
 225     int np;
 226
 227 #ifdef LINUX_SYSFS
 228     struct sysfs_bus *usb_bus = NULL;
 229     struct sysfs_driver *acecad_driver = NULL;
 230     struct sysfs_device *candidate = NULL;
 231     char *link = NULL;
 232     struct dlist *devs = NULL;
 233     struct dlist *links = NULL;
 234
 235     xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 236     usb_bus = sysfs_open_bus(usb_bus_name);
 237     if (usb_bus) {
 238         xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 239         acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 240         if (acecad_driver) {
 241             xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 242             devs = sysfs_get_driver_devices(acecad_driver);
 243             if (devs) {
 244                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 245                 dlist_for_each_data(devs, candidate, struct sysfs_device) {
 246                     xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 247                     links = sysfs_open_link_list(candidate->path);
 248                     dlist_for_each_data(links, link, char) {
 249                         if (sscanf(link, "input:event%d", &i) == 1) {
 250                             xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 251                             break;
 252                         }
 253                     }
 254                     sysfs_close_list(links);
 255                     if (i > 0) /* We found something */
 256                         break;
 257                 }
 258             } else
 259                 xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 260         } else
 261             xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 262     } else
 263         xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 264     sysfs_close_bus(usb_bus);
 265
 266     if (i > 0) {
 267         /* We found something */
 268         np = SET_EVENT_NUM(fname, i);
 269         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 270             xf86MsgVerb(X_WARNING, verb, "%s: unable to manage event device %d\n", local->name, i);
 271         } else {
 272             goto ProbeFound;
 273         }
 274     } else
 275         xf86MsgVerb(X_WARNING, verb, "%s: no Acecad devices found via sysfs\n", local->name);
 276
 277 #endif
 278
 279     if (!ace_name)
 280         ace_name = ace_name_default;
 281
 282     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 283     for (i = 0; ; i++) {
 284         int fd = -1;
 285         Bool is_acecad;
 286
 287         np = SET_EVENT_NUM(fname, i);
 288         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 289             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 290             break;
 291         }
 292         SYSCALL(fd = open(fname, O_RDONLY));
 293         if (fd < 0) {
 294             if (errno == ENOENT) {
 295                 if (++noent_cnt >= max_skip)
 296                     break;
 297                 else
 298                     continue;
 299             } else {
 300                 continue;
 301             }
 302         }
 303         noent_cnt = 0;
 304         have_evdev = TRUE;
 305         is_acecad = fd_query_acecad(fd, ace_name);
 306         SYSCALL(close(fd));
 307         if (is_acecad) {
 308             goto ProbeFound;
 309         }
 310     }
 311     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 312             local->name, i + 1, ace_name);
 313     if (i <= max_skip)
 314         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 315                 local->name);
 316     if (i > max_skip && !have_evdev)
 317         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 318     return FALSE;
 319
 320 ProbeFound:
 321     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 322             local->name, fname);
 323     xf86ReplaceStrOption(local->options, "Device", fname);
 324     return TRUE;
 325 }
 326
 327 #endif
 328
 329 static InputInfoPtr
 330 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 331 {
 332     LocalDevicePtr local = xf86AllocateInput(drv, 0);
 333     AceCadPrivatePtr priv = xcalloc (1, sizeof(AceCadPrivateRec));
 334     int speed;
 335     int msgtype;
 336     char *s;
 337
 338     if ((!local) || (!priv))
 339         goto SetupProc_fail;
 340
 341     memset(priv, 0, sizeof(AceCadPrivateRec));
 342
 343     local->name = dev->identifier;
 344     local->type_name = XI_TABLET;
 345     local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
 346 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 347     local->motion_history_proc = xf86GetMotionEvents;
 348 #endif
 349     local->control_proc = NULL;
 350     local->close_proc = CloseProc;
 351     local->switch_mode = NULL;
 352     local->conversion_proc = ConvertProc;
 353     local->reverse_conversion_proc = ReverseConvertProc;
 354     local->dev = NULL;
 355     local->private = priv;
 356     local->private_flags = 0;
 357     local->conf_idev = dev;
 358     local->device_control = DeviceControl;
 359     /*local->always_core_feedback = 0;*/
 360
 361     xf86CollectInputOptions(local, default_options, NULL);
 362
 363     xf86OptionListReport(local->options);
 364
 365     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 366
 367     s = xf86FindOptionValue(local->options, "Device");
 368     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 369 #ifdef LINUX_INPUT
 370         priv->flags |= AUTODEV_FLAG;
 371         if (!AceCadAutoDevProbe(local, 0))
 372         {
 373             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 374             goto SetupProc_fail;
 375         }
 376 #else
 377         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 378         goto SetupProc_fail;
 379 #endif
 380     }
 381
 382     local->fd = xf86OpenSerial (local->options);
 383     if (local->fd == -1)
 384     {
 385         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 386         goto SetupProc_fail;
 387     }
 388     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 389
 390 #ifdef LINUX_INPUT
 391     if (IsUSBLine(local->fd)) {
 392         priv->flags |= USB_FLAG;
 393
 394         local->read_input = USBReadInput;
 395
 396         if (USBQueryHardware(local) != Success)
 397         {
 398             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 399             goto SetupProc_fail;
 400         }
 401     } else
 402 #endif
 403     {
 404         local->read_input = ReadInput;
 405
 406         msgtype = X_DEFAULT;
 407         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 408             msgtype = X_CONFIG;
 409             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 410         } else {
 411             speed = 85;
 412         }
 413
 414         switch (speed)
 415         {
 416             case 120:
 417                 priv->acecadReportSpeed = 'Q';
 418                 break;
 419             case 85:
 420                 priv->acecadReportSpeed = 'R';
 421                 break;
 422             case 10:
 423                 priv->acecadReportSpeed = 'S';
 424                 break;
 425             case 2:
 426                 priv->acecadReportSpeed = 'T';
 427                 break;
 428             default:
 429                 priv->acecadReportSpeed = 'R';
 430                 speed = 85;
 431                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 432                 msgtype = X_DEFAULT;
 433         }
 434
 435         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 436
 437         priv->buffer = XisbNew (local->fd, 200);
 438
 439         /*
 440          * Verify that hardware is attached and fuctional
 441          */
 442         if (QueryHardware(priv) != Success)
 443         {
 444             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 445             goto SetupProc_fail;
 446         }
 447     }
 448
 449     s = xf86FindOptionValue(local->options, "Mode");
 450     msgtype = s ? X_CONFIG : X_DEFAULT;
 451     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 452     {
 453         priv->flags |= ABSOLUTE_FLAG;
 454     }
 455
 456     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 457     DBG (9, XisbTrace (priv->buffer, 1));
 458
 459     local->history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 460
 461     xf86ProcessCommonOptions(local, local->options);
 462
 463     local->flags |= XI86_CONFIGURED;
 464
 465     if (local->fd != -1)
 466     {
 467         RemoveEnabledDevice (local->fd);
 468         if (priv->buffer)
 469         {
 470             XisbFree(priv->buffer);
 471             priv->buffer = NULL;
 472         }
 473         xf86CloseSerial(local->fd);
 474     }
 475     RemoveEnabledDevice (local->fd);
 476     local->fd = -1;
 477     return local;
 478
 479     /*
 480      * If something went wrong, cleanup and return NULL
 481      */
 482 SetupProc_fail:
 483     if ((local) && (local->fd))
 484         xf86CloseSerial (local->fd);
 485     if ((priv) && (priv->buffer))
 486         XisbFree (priv->buffer);
 487     if (priv) {
 488         xfree (priv);
 489         if (local)
 490                 local->private = NULL;
 491     }
 492     xf86DeleteInput(local, 0);
 493     return NULL;
 494 }
 495
 496 static Bool
 497 DeviceControl (DeviceIntPtr dev, int mode)
 498 {
 499     Bool RetValue;
 500
 501     switch (mode)
 502     {
 503         case DEVICE_INIT:
 504             DeviceInit(dev);
 505             RetValue = Success;
 506             break;
 507         case DEVICE_ON:
 508             RetValue = DeviceOn(dev);
 509             break;
 510         case DEVICE_OFF:
 511             RetValue = DeviceOff(dev);
 512             break;
 513         case DEVICE_CLOSE:
 514             RetValue = DeviceClose(dev);
 515             break;
 516         default:
 517             RetValue = BadValue;
 518     }
 519
 520     return RetValue;
 521 }
 522
 523 static Bool
 524 DeviceOn (DeviceIntPtr dev)
 525 {
 526     char buffer[256];
 527     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 528     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 529
 530     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 531
 532     local->fd = xf86OpenSerial(local->options);
 533     if (local->fd == -1)
 534     {
 535         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 536         priv->flags &= ~AVAIL_FLAG;
 537 #ifdef LINUX_INPUT
 538         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 539             local->fd = xf86OpenSerial(local->options);
 540         if (local->fd == -1)
 541 #endif
 542             return !Success;
 543     }
 544     priv->flags |= AVAIL_FLAG;
 545
 546
 547     if (!(priv->flags & USB_FLAG)) {
 548         priv->buffer = XisbNew(local->fd, 200);
 549         if (!priv->buffer)
 550         {
 551             xf86CloseSerial(local->fd);
 552             local->fd = -1;
 553             return !Success;
 554         }
 555
 556         /* Rets qu'a l'envoyer a la tablette */
 557         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 558         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 559     }
 560
 561     xf86FlushInput(local->fd);
 562     xf86AddEnabledDevice (local);
 563     dev->public.on = TRUE;
 564     return Success;
 565 }
 566
 567 static Bool
 568 DeviceOff (DeviceIntPtr dev)
 569 {
 570     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 571     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 572
 573     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 574
 575     if (local->fd != -1)
 576     {
 577         RemoveEnabledDevice (local->fd);
 578         if (priv->buffer)
 579         {
 580             XisbFree(priv->buffer);
 581             priv->buffer = NULL;
 582         }
 583         xf86CloseSerial(local->fd);
 584     }
 585
 586
 587     xf86RemoveEnabledDevice (local);
 588     dev->public.on = FALSE;
 589     return Success;
 590 }
 591
 592 static Bool
 593 DeviceClose (DeviceIntPtr dev)
 594 {
 595     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 596
 597     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 598
 599     return Success;
 600 }
 601
 602 static void
 603 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 604 {
 605     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 606
 607     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 608 }
 609
 610 static Bool
 611 DeviceInit (DeviceIntPtr dev)
 612 {
 613     int rx, ry;
 614     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 615     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 616     unsigned char map[] = {0, 1, 2, 3};
 617 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 618     Atom btn_labels[3];
 619     Atom axes_labels[3];
 620
 621     btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
 622     btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
 623     btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
 624
 625     if ((priv->flags & ABSOLUTE_FLAG))
 626     {
 627         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
 628         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
 629         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_PRESSURE);
 630     } else
 631     {
 632         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
 633         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
 634         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Z);
 635     }
 636 #endif
 637
 638     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 639
 640     /* 3 boutons */
 641     if (InitButtonClassDeviceStruct (dev, 3,
 642 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 643                 btn_labels,
 644 #endif
 645                 map) == FALSE)
 646     {
 647         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 648         return !Success;
 649     }
 650
 651     if (InitFocusClassDeviceStruct (dev) == FALSE)
 652     {
 653         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 654         return !Success;
 655     }
 656
 657     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 658         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 659         return !Success;
 660     }
 661
 662
 663     /* 3 axes */
 664     if (InitValuatorClassDeviceStruct (dev, 3,
 665 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 666                 axes_labels,
 667 #endif
 668 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 3
 669                 xf86GetMotionEvents,
 670 #endif
 671                 local->history_size,
 672                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 673             == FALSE)
 674     {
 675         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 676         return !Success;
 677     }
 678     else
 679     {
 680
 681         InitValuatorAxisStruct(dev,
 682                 0,
 683 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 684                 axes_labels[0],
 685 #endif
 686                 0,                      /* min val */
 687 #if XORG_BOTCHED_INPUT
 688                 screenInfo.screens[0]->width,
 689 #else
 690                 priv->acecadMaxX,       /* max val */
 691 #endif
 692                 1000,                   /* resolution */
 693                 0,                      /* min_res */
 694                 1000);                  /* max_res */
 695         InitValuatorAxisStruct(dev,
 696                 1,
 697 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 698                 axes_labels[1],
 699 #endif
 700                 0,                      /* min val */
 701 #if XORG_BOTCHED_INPUT
 702                 screenInfo.screens[0]->height,
 703 #else
 704                 priv->acecadMaxY,       /* max val */
 705 #endif
 706                 1000,                   /* resolution */
 707                 0,                      /* min_res */
 708                 1000);                  /* max_res */
 709         InitValuatorAxisStruct(dev,
 710                 2,
 711 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 712                 axes_labels[2],
 713 #endif
 714                 0,                      /* min val */
 715                 priv->acecadMaxZ,       /* max val */
 716                 1000,                   /* resolution */
 717                 0,                      /* min_res */
 718                 1000);          /* max_res */
 719
 720     }
 721
 722     if (InitProximityClassDeviceStruct (dev) == FALSE)
 723     {
 724         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 725         return !Success;
 726     }
 727
 728     xf86MotionHistoryAllocate (local);
 729
 730
 731     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 732        connaitre la taille... */
 733
 734     if (priv->acecadInc > 95)
 735         priv->acecadInc = 95;
 736     if (priv->acecadInc < 1)
 737     {
 738         /* guess the best increment value given video mode */
 739         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 740         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 741         if (rx < ry)
 742             priv->acecadInc = rx;
 743         else
 744             priv->acecadInc = ry;
 745         if (priv->acecadInc < 1)
 746             priv->acecadInc = 1;
 747     }
 748
 749     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 750
 751     return Success;
 752 }
 753
 754 static void
 755 ReadInput (LocalDevicePtr local)
 756 {
 757     int x, y, z;
 758     int prox, buttons;
 759     int is_core_pointer = 0, is_absolute;
 760     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 761
 762     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 763
 764     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 765 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 766     is_core_pointer = xf86IsCorePointer(local->dev);
 767 #endif
 768
 769     /*
 770      * set blocking to -1 on the first call because we know there is data to
 771      * read. Xisb automatically clears it after one successful read so that
 772      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 773      * read from blocking indefinately.
 774      */
 775     XisbBlockDuration (priv->buffer, -1);
 776
 777     while (AceCadGetPacket (priv) == Success)
 778     {
 779         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 780         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 781
 782         if (!(priv->flags & ABSOLUTE_FLAG))
 783         {
 784             x = priv->packet[0] & XSIGN_BIT? x:-x;
 785             y = priv->packet[0] & YSIGN_BIT? y:-y;
 786         }
 787         else
 788         {
 789             y = priv->acecadMaxY - y ;
 790         }
 791
 792
 793         z = ((int)priv->packet[5] << 2) |
 794             (((int)priv->packet[6] & 0x01) << 1) |
 795             (((int)priv->packet[6] & 0x10) >> 4);
 796
 797         buttons = ((int)priv->packet[0] & 0x07) |
 798             ((int)priv->packet[6] & 0x02 << 2);
 799
 800         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 801
 802         if (prox)
 803         {
 804             if (!(priv->acecadOldProximity))
 805                 if (!is_core_pointer)
 806                 {
 807                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 808                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 809                 }
 810
 811             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 812                     || (!is_absolute && (x || y)))
 813             {
 814                 if (is_absolute || priv->acecadOldProximity)
 815                 {
 816                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 817                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 818                 }
 819             }
 820
 821             if (priv->acecadOldButtons != buttons)
 822             {
 823                 int delta = buttons ^ priv->acecadOldButtons;
 824                 while (delta)
 825                 {
 826                     int id = ffs(delta);
 827                     delta &= ~(1 << (id-1));
 828
 829                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 830                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 831                 }
 832             }
 833
 834             priv->acecadOldButtons = buttons;
 835             priv->acecadOldX = x;
 836             priv->acecadOldY = y;
 837             priv->acecadOldZ = z;
 838             priv->acecadOldProximity = prox;
 839         }
 840         else
 841         {
 842             if (!is_core_pointer)
 843                 if (priv->acecadOldProximity)
 844                 {
 845                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 846                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 847                 }
 848             priv->acecadOldProximity = 0;
 849         }
 850     }
 851     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 852 }
 853
 854 #ifdef LINUX_INPUT
 855 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 856 static void
 857 USBReadInput (LocalDevicePtr local)
 858 {
 859     int len;
 860     struct input_event * event;
 861     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 862     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 863     int x = priv->acecadOldX;
 864     int y = priv->acecadOldY;
 865     int z = priv->acecadOldZ;
 866     int report_x, report_y;
 867     int prox = priv->acecadOldProximity;
 868     int buttons = priv->acecadOldButtons;
 869     int is_core_pointer = 0;
 870 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 871     is_core_pointer = xf86IsCorePointer(local->dev);
 872 #endif
 873     /* Is autodev active? */
 874     int autodev = priv->flags & AUTODEV_FLAG;
 875     /* Was the device available last time we checked? */
 876     int avail = priv->flags & AVAIL_FLAG;
 877
 878     SYSCALL(len = xf86ReadSerial(local->fd, eventbuf, sizeof(eventbuf)));
 879
 880     if (len <= 0) {
 881         if (avail) {
 882             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 883         }
 884         if (NOTAVAIL) {
 885             priv->flags &= ~AVAIL_FLAG;
 886             if(autodev) {
 887                 if (AceCadAutoDevProbe(local, 4)) {
 888                     DeviceOff(local->dev);
 889                     DeviceOn(local->dev);
 890                 }
 891             }
 892         }
 893         return;
 894     } else {
 895         if (!avail) {
 896             /* If the device wasn't available last time we checked */
 897             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 898             priv->flags |= AVAIL_FLAG;
 899         }
 900     }
 901
 902     for (event = (struct input_event *)eventbuf;
 903             event < (struct input_event *)(eventbuf+len); event++) {
 904
 905         switch (event->type) {
 906             case EV_SYN: /* 2.6.x */
 907                 if (event->code != SYN_REPORT)
 908                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 909                 break;
 910             case EV_ABS:
 911                 switch (event->code) {
 912                     case ABS_X:
 913                         x = event->value;
 914                         break;
 915
 916                     case ABS_Y:
 917                         y = event->value;
 918                         break;
 919
 920                     case ABS_PRESSURE:
 921                         z = event->value;
 922                         break;
 923
 924                     case ABS_MISC:
 925                         break;
 926
 927                 }
 928                 break; /* EV_ABS */
 929
 930             case EV_KEY:
 931                 switch (event->code) {
 932                     case BTN_TOOL_PEN:
 933                         prox = event->value;
 934                         break;
 935
 936                     case BTN_TOUCH:
 937                         buttons = set_bit(buttons,0,event->value);
 938                         break;
 939
 940                     case BTN_STYLUS:
 941                         buttons = set_bit(buttons,1,event->value);
 942                         break;
 943
 944                     case BTN_STYLUS2:
 945                         buttons = set_bit(buttons,2,event->value);
 946                         break;
 947                 }
 948                 break; /* EV_KEY */
 949             default:
 950                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 951         } /* switch event->type */
 952
 953         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 954          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 955          */
 956         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 957                     (event->type == EV_ABS && event->code == ABS_MISC)
 958              )) {
 959             continue;
 960         }
 961
 962         if (prox)
 963         {
 964 #if XORG_BOTCHED_INPUT
 965             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 966 #else
 967             report_x = x;
 968             report_y = y;
 969 #endif
 970             if (!(priv->acecadOldProximity))
 971                 if (!is_core_pointer)
 972                 {
 973                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 974                 }
 975
 976
 977             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 978
 979             if (priv->acecadOldButtons != buttons)
 980             {
 981                 int delta = buttons ^ priv->acecadOldButtons;
 982                 while (delta)
 983                 {
 984                     int id = ffs(delta);
 985                     delta &= ~(1 << (id-1));
 986
 987                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
 988                 }
 989             }
 990         }
 991         else
 992         {
 993             if (!is_core_pointer)
 994                 if (priv->acecadOldProximity)
 995                 {
 996                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
 997                 }
 998             priv->acecadOldProximity = 0;
 999         }
1000
1001         priv->acecadOldButtons = buttons;
1002         priv->acecadOldX = x;
1003         priv->acecadOldY = y;
1004         priv->acecadOldZ = z;
1005         priv->acecadOldProximity = prox;
1006     }
1007     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
1008 }
1009 #endif
1010
1011 static void
1012 CloseProc (LocalDevicePtr local)
1013 {
1014 }
1015
1016 /*
1017  * The ConvertProc function may need to be tailored for your device.
1018  * This function converts the device's valuator outputs to x and y coordinates
1019  * to simulate mouse events.
1020  */
1021 static Bool
1022 ConvertProc (LocalDevicePtr local, int first, int num,
1023         int v0, int v1, int v2, int v3, int v4, int v5,
1024         int *x, int *y)
1025 {
1026     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1027
1028     /* TODO: should have a structure to hold which screen the
1029      * pointer is attached to? */
1030     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1031     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1032     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1033     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1034     return TRUE;
1035 }
1036
1037
1038 static Bool
1039 ReverseConvertProc (LocalDevicePtr local,
1040         int x, int  y,
1041         int *valuators)
1042 {
1043     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1044
1045     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
1046     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1047     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1048     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
1049
1050     return TRUE;
1051 }
1052
1053
1054 #define WriteString(str)\
1055     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1056
1057
1058 static Bool
1059 QueryHardware (AceCadPrivatePtr priv)
1060 {
1061
1062     /* Reset */
1063     WriteString("z0");
1064
1065     /* Wait */
1066     milisleep (250);
1067
1068     /* Prompt Mode in order to not be disturbed */
1069     WriteString(ACECAD_PROMPT_MODE);
1070
1071     /* Flush */
1072     while (XisbRead(priv->buffer) >= 0);
1073
1074     /* Ask for Config packet*/
1075     WriteString(ACECAD_CONFIG);
1076
1077     /* Read the packet */
1078     XisbBlockDuration (priv->buffer, 1000000);
1079     NewPacket (priv);
1080
1081     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1082
1083     if ((AceCadGetPacket (priv) == Success))
1084     {
1085         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1086         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1087         priv->acecadMaxZ = 512;
1088         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1089     }
1090     else
1091         return !Success;
1092
1093     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1094     return Success;
1095 }
1096
1097 #define BITS_PER_LONG (sizeof(long) * 8)
1098 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1099 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1100 #define OFF(x)  ((x)%BITS_PER_LONG)
1101 #define LONG(x) ((x)/BITS_PER_LONG)
1102
1103 #ifdef LINUX_INPUT
1104 static Bool
1105 USBQueryHardware (LocalDevicePtr local)
1106 {
1107     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1108     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1109     int                 i, j;
1110     int                 abs[5];
1111     char                name[256] = "Unknown";
1112
1113     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1114     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1115
1116     memset(bit, 0, sizeof(bit));
1117     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1118
1119     for (i = 0; i < EV_MAX; i++)
1120         if (test_bit(i, bit[0])) {
1121             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1122             for (j = 0; j < KEY_MAX; j++)
1123                 if (test_bit(j, bit[i])) {
1124                     if (i == EV_ABS) {
1125                         ioctl(local->fd, EVIOCGABS(j), abs);
1126                         switch (j) {
1127                             case ABS_X:
1128                                 priv->acecadMaxX = abs[2];
1129                                 break;
1130
1131                             case ABS_Y:
1132                                 priv->acecadMaxY = abs[2];
1133                                 break;
1134
1135                             case ABS_PRESSURE:
1136                                 priv->acecadMaxZ = abs[2];
1137                                 break;
1138                         }
1139                     }
1140                 }
1141         }
1142
1143     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1144     return Success;
1145 }
1146 #endif
1147
1148 static void
1149 NewPacket (AceCadPrivatePtr priv)
1150 {
1151     priv->packeti = 0;
1152 }
1153
1154 static Bool
1155 AceCadGetPacket (AceCadPrivatePtr priv)
1156 {
1157     int count = 0;
1158     int c = 0;
1159
1160     while((c = XisbRead(priv->buffer)) >= 0 )
1161     {
1162
1163         /*
1164          * fail after 500 bytes so the server doesn't hang forever if a
1165          * device sends bad data.
1166          */
1167         if (count++ > 500)
1168         {
1169             NewPacket (priv);
1170             return !Success;
1171         }
1172
1173         if (c & PHASING_BIT)
1174         {
1175             NewPacket(priv);
1176
1177             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1178             XisbBlockDuration (priv->buffer, 10000);
1179             priv->packet[priv->packeti++] = c;
1180             count = ACECAD_PACKET_SIZE - 1;
1181             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1182             {
1183                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1184                 priv->packet[priv->packeti++] = c;
1185             }
1186             XisbBlockDuration (priv->buffer, 0);
1187             if(c > 0)
1188                 return Success;
1189         }
1190     }
1191     return !Success;
1192 }