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