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 #undef read
 104 #define read(a,b,c) xf86ReadSerial((a),(b),(c))
 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         0
 118 };
 119
 120 #ifdef XFree86LOADER
 121 static XF86ModuleVersionInfo VersionRec =
 122 {
 123         "acecad",
 124         MODULEVENDORSTRING,
 125         MODINFOSTRING1,
 126         MODINFOSTRING2,
 127         XORG_VERSION_CURRENT,
 128         PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
 129         ABI_CLASS_XINPUT,
 130         ABI_XINPUT_VERSION,
 131         MOD_CLASS_XINPUT,
 132         {0, 0, 0, 0}
 133 };
 134
 135
 136 _X_EXPORT XF86ModuleData acecadModuleData = {
 137         &VersionRec,
 138         SetupProc,
 139         TearDownProc
 140 };
 141
 142 /*****************************************************************************
 143  *      Function Definitions
 144  ****************************************************************************/
 145
 146 static pointer
 147 SetupProc(      pointer module,
 148                 pointer options,
 149                 int *errmaj,
 150                 int *errmin )
 151 {
 152         xf86AddInputDriver(&ACECAD, module, 0);
 153         return module;
 154 }
 155
 156 static void
 157 TearDownProc( pointer p )
 158 {
 159 #if 0
 160         LocalDevicePtr local = (LocalDevicePtr) p;
 161         AceCadPrivatePtr priv = (AceCadPrivatePtr) local->private;
 162
 163         DeviceOff (local->dev);
 164
 165         xf86CloseSerial (local->fd);
 166         XisbFree (priv->buffer);
 167         xfree (priv);
 168         xfree (local->name);
 169         xfree (local);
 170 #endif
 171 }
 172 #endif
 173
 174 static const char *default_options[] =
 175 {
 176         "BaudRate", "9600",
 177         "StopBits", "1",
 178         "DataBits", "8",
 179         "Parity", "Odd",
 180         "Vmin", "1",
 181         "Vtime", "10",
 182         "FlowControl", "Xoff",
 183         NULL
 184 };
 185
 186 #ifdef LINUX_INPUT
 187 static int
 188 IsUSBLine(int fd)
 189 {
 190     int version;
 191     int err;
 192
 193     SYSCALL(err = ioctl(fd, EVIOCGVERSION, &version));
 194
 195     if (!err) {
 196         xf86MsgVerb(X_PROBED, 4, "Kernel Input driver version is %d.%d.%d\n",
 197                 version >> 16, (version >> 8) & 0xff, version & 0xff);
 198         return 1;
 199     } else {
 200         xf86MsgVerb(X_PROBED, 4, "No Kernel Input driver found\n");
 201         return 0;
 202     }
 203 }
 204
 205 /* Heavily inspired by synaptics/eventcomm.c */
 206
 207 #define DEV_INPUT_EVENT "/dev/input/event"
 208 #define EV_DEV_NAME_MAXLEN 64
 209 #define SET_EVENT_NUM(str, num) \
 210     snprintf(str, EV_DEV_NAME_MAXLEN, "%s%d", DEV_INPUT_EVENT, num)
 211
 212 static Bool
 213 fd_query_acecad(int fd, char *ace_name) {
 214     char name[256] = "Unknown";
 215     int cmp_at = strlen(ace_name);
 216     if (cmp_at > 255)
 217         cmp_at = 255;
 218     ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 219     name[cmp_at] = '\0';
 220     if (xf86NameCmp(name, ace_name) == 0)
 221         return TRUE;
 222     return FALSE;
 223 }
 224
 225 static char ace_name_default[7] = "acecad";
 226
 227 #ifdef LINUX_SYSFS
 228 static char usb_bus_name[4] = "usb";
 229 static char acecad_driver_name[11] = "usb_acecad";
 230 #endif
 231
 232 static Bool
 233 AceCadAutoDevProbe(LocalDevicePtr local, int verb)
 234 {
 235     /* We are trying to find the right eventX device */
 236     int i = 0;
 237     Bool have_evdev = FALSE;
 238     int noent_cnt = 0;
 239     const int max_skip = 10;
 240     char *ace_name = xf86FindOptionValue(local->options, "Name");
 241     char fname[EV_DEV_NAME_MAXLEN];
 242     int np;
 243
 244 #ifdef LINUX_SYSFS
 245     struct sysfs_bus *usb_bus = NULL;
 246     struct sysfs_driver *acecad_driver = NULL;
 247     struct sysfs_device *candidate = NULL;
 248     char *link = NULL;
 249     struct dlist *devs = NULL;
 250     struct dlist *links = NULL;
 251
 252     xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 253     usb_bus = sysfs_open_bus(usb_bus_name);
 254     if (usb_bus) {
 255         xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 256         acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 257         if (acecad_driver) {
 258             xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 259             devs = sysfs_get_driver_devices(acecad_driver);
 260             if (devs) {
 261                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 262                 dlist_for_each_data(devs, candidate, struct sysfs_device) {
 263                     xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 264                     links = sysfs_open_link_list(candidate->path);
 265                     dlist_for_each_data(links, link, char) {
 266                         if (sscanf(link, "input:event%d", &i) == 1) {
 267                             xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 268                             break;
 269                         }
 270                     }
 271                     sysfs_close_list(links);
 272                     if (i > 0) /* We found something */
 273                         break;
 274                 }
 275             } else
 276                 xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 277         } else
 278             xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 279     } else
 280         xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 281     sysfs_close_bus(usb_bus);
 282
 283     if (i > 0) {
 284         /* We found something */
 285         np = SET_EVENT_NUM(fname, i);
 286         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 287             xf86MsgVerb(X_WARNING, verb, "%s: unable to manage event device %d\n", local->name, i);
 288         } else {
 289             goto ProbeFound;
 290         }
 291     } else
 292         xf86MsgVerb(X_WARNING, verb, "%s: no Acecad devices found via sysfs\n", local->name);
 293
 294 #endif
 295
 296     if (!ace_name)
 297         ace_name = ace_name_default;
 298
 299     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 300     for (i = 0; ; i++) {
 301         int fd = -1;
 302         Bool is_acecad;
 303
 304         np = SET_EVENT_NUM(fname, i);
 305         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 306             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 307             break;
 308         }
 309         SYSCALL(fd = open(fname, O_RDONLY));
 310         if (fd < 0) {
 311             if (errno == ENOENT) {
 312                 if (++noent_cnt >= max_skip)
 313                     break;
 314                 else
 315                     continue;
 316             } else {
 317                 continue;
 318             }
 319         }
 320         noent_cnt = 0;
 321         have_evdev = TRUE;
 322         is_acecad = fd_query_acecad(fd, ace_name);
 323         SYSCALL(close(fd));
 324         if (is_acecad) {
 325             goto ProbeFound;
 326         }
 327     }
 328     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 329             local->name, i + 1, ace_name);
 330     if (i <= max_skip)
 331         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 332                 local->name);
 333     if (i > max_skip && !have_evdev)
 334         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 335     return FALSE;
 336
 337 ProbeFound:
 338     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 339             local->name, fname);
 340     xf86ReplaceStrOption(local->options, "Device", fname);
 341     return TRUE;
 342 }
 343
 344 #endif
 345
 346 static InputInfoPtr
 347 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 348 {
 349     LocalDevicePtr local = xf86AllocateInput(drv, 0);
 350     AceCadPrivatePtr priv = xcalloc (1, sizeof(AceCadPrivateRec));
 351     int speed;
 352     int msgtype;
 353     char *s;
 354
 355     if ((!local) || (!priv))
 356         goto SetupProc_fail;
 357
 358     memset(priv, 0, sizeof(AceCadPrivateRec));
 359
 360     local->name = dev->identifier;
 361     local->type_name = XI_TABLET;
 362     local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
 363 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 364     local->motion_history_proc = xf86GetMotionEvents;
 365 #endif
 366     local->control_proc = NULL;
 367     local->close_proc = CloseProc;
 368     local->switch_mode = NULL;
 369     local->conversion_proc = ConvertProc;
 370     local->reverse_conversion_proc = ReverseConvertProc;
 371     local->dev = NULL;
 372     local->private = priv;
 373     local->private_flags = 0;
 374     local->conf_idev = dev;
 375     local->device_control = DeviceControl;
 376     /*local->always_core_feedback = 0;*/
 377
 378     xf86CollectInputOptions(local, default_options, NULL);
 379
 380     xf86OptionListReport(local->options);
 381
 382     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 383
 384     s = xf86FindOptionValue(local->options, "Device");
 385     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 386 #ifdef LINUX_INPUT
 387         priv->flags |= AUTODEV_FLAG;
 388         if (!AceCadAutoDevProbe(local, 0))
 389         {
 390             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 391             goto SetupProc_fail;
 392         }
 393 #else
 394         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 395         goto SetupProc_fail;
 396 #endif
 397     }
 398
 399     local->fd = xf86OpenSerial (local->options);
 400     if (local->fd == -1)
 401     {
 402         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 403         goto SetupProc_fail;
 404     }
 405     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 406
 407 #ifdef LINUX_INPUT
 408     if (IsUSBLine(local->fd)) {
 409         priv->flags |= USB_FLAG;
 410
 411         local->read_input = USBReadInput;
 412
 413         if (USBQueryHardware(local) != Success)
 414         {
 415             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 416             goto SetupProc_fail;
 417         }
 418     } else
 419 #endif
 420     {
 421         local->read_input = ReadInput;
 422
 423         msgtype = X_DEFAULT;
 424         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 425             msgtype = X_CONFIG;
 426             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 427         } else {
 428             speed = 85;
 429         }
 430
 431         switch (speed)
 432         {
 433             case 120:
 434                 priv->acecadReportSpeed = 'Q';
 435                 break;
 436             case 85:
 437                 priv->acecadReportSpeed = 'R';
 438                 break;
 439             case 10:
 440                 priv->acecadReportSpeed = 'S';
 441                 break;
 442             case 2:
 443                 priv->acecadReportSpeed = 'T';
 444                 break;
 445             default:
 446                 priv->acecadReportSpeed = 'R';
 447                 speed = 85;
 448                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 449                 msgtype = X_DEFAULT;
 450         }
 451
 452         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 453
 454         priv->buffer = XisbNew (local->fd, 200);
 455
 456         /*
 457          * Verify that hardware is attached and fuctional
 458          */
 459         if (QueryHardware(priv) != Success)
 460         {
 461             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 462             goto SetupProc_fail;
 463         }
 464     }
 465
 466     s = xf86FindOptionValue(local->options, "Mode");
 467     msgtype = s ? X_CONFIG : X_DEFAULT;
 468     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 469     {
 470         priv->flags |= ABSOLUTE_FLAG;
 471     }
 472
 473     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 474     DBG (9, XisbTrace (priv->buffer, 1));
 475
 476     local->history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 477
 478     xf86ProcessCommonOptions(local, local->options);
 479
 480     local->flags |= XI86_CONFIGURED;
 481
 482     if (local->fd != -1)
 483     {
 484         RemoveEnabledDevice (local->fd);
 485         if (priv->buffer)
 486         {
 487             XisbFree(priv->buffer);
 488             priv->buffer = NULL;
 489         }
 490         xf86CloseSerial(local->fd);
 491     }
 492     RemoveEnabledDevice (local->fd);
 493     local->fd = -1;
 494     return local;
 495
 496     /*
 497      * If something went wrong, cleanup and return NULL
 498      */
 499 SetupProc_fail:
 500     if ((local) && (local->fd))
 501         xf86CloseSerial (local->fd);
 502     if ((priv) && (priv->buffer))
 503         XisbFree (priv->buffer);
 504     if (priv) {
 505         xfree (priv);
 506         if (local)
 507                 local->private = NULL;
 508     }
 509     xf86DeleteInput(local, 0);
 510     return NULL;
 511 }
 512
 513 static Bool
 514 DeviceControl (DeviceIntPtr dev, int mode)
 515 {
 516     Bool RetValue;
 517
 518     switch (mode)
 519     {
 520         case DEVICE_INIT:
 521             DeviceInit(dev);
 522             RetValue = Success;
 523             break;
 524         case DEVICE_ON:
 525             RetValue = DeviceOn(dev);
 526             break;
 527         case DEVICE_OFF:
 528             RetValue = DeviceOff(dev);
 529             break;
 530         case DEVICE_CLOSE:
 531             RetValue = DeviceClose(dev);
 532             break;
 533         default:
 534             RetValue = BadValue;
 535     }
 536
 537     return RetValue;
 538 }
 539
 540 static Bool
 541 DeviceOn (DeviceIntPtr dev)
 542 {
 543     char buffer[256];
 544     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 545     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 546
 547     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 548
 549     local->fd = xf86OpenSerial(local->options);
 550     if (local->fd == -1)
 551     {
 552         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 553         priv->flags &= ~AVAIL_FLAG;
 554 #ifdef LINUX_INPUT
 555         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 556             local->fd = xf86OpenSerial(local->options);
 557         if (local->fd == -1)
 558 #endif
 559             return !Success;
 560     }
 561     priv->flags |= AVAIL_FLAG;
 562
 563
 564     if (!(priv->flags & USB_FLAG)) {
 565         priv->buffer = XisbNew(local->fd, 200);
 566         if (!priv->buffer)
 567         {
 568             xf86CloseSerial(local->fd);
 569             local->fd = -1;
 570             return !Success;
 571         }
 572
 573         /* Rets qu'a l'envoyer a la tablette */
 574         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 575         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 576     }
 577
 578     xf86FlushInput(local->fd);
 579     xf86AddEnabledDevice (local);
 580     dev->public.on = TRUE;
 581     return Success;
 582 }
 583
 584 static Bool
 585 DeviceOff (DeviceIntPtr dev)
 586 {
 587     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 588     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 589
 590     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 591
 592     if (local->fd != -1)
 593     {
 594         RemoveEnabledDevice (local->fd);
 595         if (priv->buffer)
 596         {
 597             XisbFree(priv->buffer);
 598             priv->buffer = NULL;
 599         }
 600         xf86CloseSerial(local->fd);
 601     }
 602
 603
 604     xf86RemoveEnabledDevice (local);
 605     dev->public.on = FALSE;
 606     return Success;
 607 }
 608
 609 static Bool
 610 DeviceClose (DeviceIntPtr dev)
 611 {
 612     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 613
 614     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 615
 616     return Success;
 617 }
 618
 619 static void
 620 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 621 {
 622     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 623
 624     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 625 }
 626
 627 static Bool
 628 DeviceInit (DeviceIntPtr dev)
 629 {
 630     int rx, ry;
 631     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 632     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 633     unsigned char map[] = {0, 1, 2, 3};
 634 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 635     Atom btn_labels[3];
 636     Atom axes_labels[3];
 637
 638     btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
 639     btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
 640     btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
 641
 642     if ((priv->flags & ABSOLUTE_FLAG))
 643     {
 644         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
 645         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
 646         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_PRESSURE);
 647     } else
 648     {
 649         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
 650         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
 651         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Z);
 652     }
 653 #endif
 654
 655     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 656
 657     /* 3 boutons */
 658     if (InitButtonClassDeviceStruct (dev, 3,
 659 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 660                 btn_labels,
 661 #endif
 662                 map) == FALSE)
 663     {
 664         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 665         return !Success;
 666     }
 667
 668     if (InitFocusClassDeviceStruct (dev) == FALSE)
 669     {
 670         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 671         return !Success;
 672     }
 673
 674     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 675         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 676         return !Success;
 677     }
 678
 679
 680     /* 3 axes */
 681     if (InitValuatorClassDeviceStruct (dev, 3,
 682 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 683                 axes_labels,
 684 #endif
 685 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 3
 686                 xf86GetMotionEvents,
 687 #endif
 688                 local->history_size,
 689                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 690             == FALSE)
 691     {
 692         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 693         return !Success;
 694     }
 695     else
 696     {
 697
 698         InitValuatorAxisStruct(dev,
 699                 0,
 700 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 701                 axes_labels[0],
 702 #endif
 703                 0,                      /* min val */
 704 #if XORG_BOTCHED_INPUT
 705                 screenInfo.screens[0]->width,
 706 #else
 707                 priv->acecadMaxX,       /* max val */
 708 #endif
 709                 1000,                   /* resolution */
 710                 0,                      /* min_res */
 711                 1000);                  /* max_res */
 712         InitValuatorAxisStruct(dev,
 713                 1,
 714 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 715                 axes_labels[1],
 716 #endif
 717                 0,                      /* min val */
 718 #if XORG_BOTCHED_INPUT
 719                 screenInfo.screens[0]->height,
 720 #else
 721                 priv->acecadMaxY,       /* max val */
 722 #endif
 723                 1000,                   /* resolution */
 724                 0,                      /* min_res */
 725                 1000);                  /* max_res */
 726         InitValuatorAxisStruct(dev,
 727                 2,
 728 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 729                 axes_labels[2],
 730 #endif
 731                 0,                      /* min val */
 732                 priv->acecadMaxZ,       /* max val */
 733                 1000,                   /* resolution */
 734                 0,                      /* min_res */
 735                 1000);          /* max_res */
 736
 737     }
 738
 739     if (InitProximityClassDeviceStruct (dev) == FALSE)
 740     {
 741         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 742         return !Success;
 743     }
 744
 745     xf86MotionHistoryAllocate (local);
 746
 747
 748     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 749        connaitre la taille... */
 750
 751     if (priv->acecadInc > 95)
 752         priv->acecadInc = 95;
 753     if (priv->acecadInc < 1)
 754     {
 755         /* guess the best increment value given video mode */
 756         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 757         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 758         if (rx < ry)
 759             priv->acecadInc = rx;
 760         else
 761             priv->acecadInc = ry;
 762         if (priv->acecadInc < 1)
 763             priv->acecadInc = 1;
 764     }
 765
 766     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 767
 768     return Success;
 769 }
 770
 771 static void
 772 ReadInput (LocalDevicePtr local)
 773 {
 774     int x, y, z;
 775     int prox, buttons;
 776     int is_core_pointer = 0, is_absolute;
 777     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 778
 779     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 780
 781     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 782 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 783     is_core_pointer = xf86IsCorePointer(local->dev);
 784 #endif
 785
 786     /*
 787      * set blocking to -1 on the first call because we know there is data to
 788      * read. Xisb automatically clears it after one successful read so that
 789      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 790      * read from blocking indefinately.
 791      */
 792     XisbBlockDuration (priv->buffer, -1);
 793
 794     while (AceCadGetPacket (priv) == Success)
 795     {
 796         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 797         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 798
 799         if (!(priv->flags & ABSOLUTE_FLAG))
 800         {
 801             x = priv->packet[0] & XSIGN_BIT? x:-x;
 802             y = priv->packet[0] & YSIGN_BIT? y:-y;
 803         }
 804         else
 805         {
 806             y = priv->acecadMaxY - y ;
 807         }
 808
 809
 810         z = ((int)priv->packet[5] << 2) |
 811             (((int)priv->packet[6] & 0x01) << 1) |
 812             (((int)priv->packet[6] & 0x10) >> 4);
 813
 814         buttons = ((int)priv->packet[0] & 0x07) |
 815             ((int)priv->packet[6] & 0x02 << 2);
 816
 817         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 818
 819         if (prox)
 820         {
 821             if (!(priv->acecadOldProximity))
 822                 if (!is_core_pointer)
 823                 {
 824                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 825                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 826                 }
 827
 828             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 829                     || (!is_absolute && (x || y)))
 830             {
 831                 if (is_absolute || priv->acecadOldProximity)
 832                 {
 833                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 834                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 835                 }
 836             }
 837
 838             if (priv->acecadOldButtons != buttons)
 839             {
 840                 int delta = buttons ^ priv->acecadOldButtons;
 841                 while (delta)
 842                 {
 843                     int id = ffs(delta);
 844                     delta &= ~(1 << (id-1));
 845
 846                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 847                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 848                 }
 849             }
 850
 851             priv->acecadOldButtons = buttons;
 852             priv->acecadOldX = x;
 853             priv->acecadOldY = y;
 854             priv->acecadOldZ = z;
 855             priv->acecadOldProximity = prox;
 856         }
 857         else
 858         {
 859             if (!is_core_pointer)
 860                 if (priv->acecadOldProximity)
 861                 {
 862                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 863                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 864                 }
 865             priv->acecadOldProximity = 0;
 866         }
 867     }
 868     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 869 }
 870
 871 #ifdef LINUX_INPUT
 872 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 873 static void
 874 USBReadInput (LocalDevicePtr local)
 875 {
 876     int len;
 877     struct input_event * event;
 878     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 879     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 880     int x = priv->acecadOldX;
 881     int y = priv->acecadOldY;
 882     int z = priv->acecadOldZ;
 883     int report_x, report_y;
 884     int prox = priv->acecadOldProximity;
 885     int buttons = priv->acecadOldButtons;
 886     int is_core_pointer = 0;
 887 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 888     is_core_pointer = xf86IsCorePointer(local->dev);
 889 #endif
 890     /* Is autodev active? */
 891     int autodev = priv->flags & AUTODEV_FLAG;
 892     /* Was the device available last time we checked? */
 893     int avail = priv->flags & AVAIL_FLAG;
 894
 895     SYSCALL(len = read(local->fd, eventbuf, sizeof(eventbuf)));
 896
 897     if (len <= 0) {
 898         if (avail) {
 899             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 900         }
 901         if (NOTAVAIL) {
 902             priv->flags &= ~AVAIL_FLAG;
 903             if(autodev) {
 904                 if (AceCadAutoDevProbe(local, 4)) {
 905                     DeviceOff(local->dev);
 906                     DeviceOn(local->dev);
 907                 }
 908             }
 909         }
 910         return;
 911     } else {
 912         if (!avail) {
 913             /* If the device wasn't available last time we checked */
 914             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 915             priv->flags |= AVAIL_FLAG;
 916         }
 917     }
 918
 919     for (event = (struct input_event *)eventbuf;
 920             event < (struct input_event *)(eventbuf+len); event++) {
 921
 922         switch (event->type) {
 923             case EV_SYN: /* 2.6.x */
 924                 if (event->code != SYN_REPORT)
 925                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 926                 break;
 927             case EV_ABS:
 928                 switch (event->code) {
 929                     case ABS_X:
 930                         x = event->value;
 931                         break;
 932
 933                     case ABS_Y:
 934                         y = event->value;
 935                         break;
 936
 937                     case ABS_PRESSURE:
 938                         z = event->value;
 939                         break;
 940
 941                     case ABS_MISC:
 942                         break;
 943
 944                 }
 945                 break; /* EV_ABS */
 946
 947             case EV_KEY:
 948                 switch (event->code) {
 949                     case BTN_TOOL_PEN:
 950                         prox = event->value;
 951                         break;
 952
 953                     case BTN_TOUCH:
 954                         buttons = set_bit(buttons,0,event->value);
 955                         break;
 956
 957                     case BTN_STYLUS:
 958                         buttons = set_bit(buttons,1,event->value);
 959                         break;
 960
 961                     case BTN_STYLUS2:
 962                         buttons = set_bit(buttons,2,event->value);
 963                         break;
 964                 }
 965                 break; /* EV_KEY */
 966             default:
 967                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 968         } /* switch event->type */
 969
 970         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 971          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 972          */
 973         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 974                     (event->type == EV_ABS && event->code == ABS_MISC)
 975              )) {
 976             continue;
 977         }
 978
 979         if (prox)
 980         {
 981 #if XORG_BOTCHED_INPUT
 982             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 983 #else
 984             report_x = x;
 985             report_y = y;
 986 #endif
 987             if (!(priv->acecadOldProximity))
 988                 if (!is_core_pointer)
 989                 {
 990                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 991                 }
 992
 993
 994             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 995
 996             if (priv->acecadOldButtons != buttons)
 997             {
 998                 int delta = buttons ^ priv->acecadOldButtons;
 999                 while (delta)
1000                 {
1001                     int id = ffs(delta);
1002                     delta &= ~(1 << (id-1));
1003
1004                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
1005                 }
1006             }
1007         }
1008         else
1009         {
1010             if (!is_core_pointer)
1011                 if (priv->acecadOldProximity)
1012                 {
1013                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
1014                 }
1015             priv->acecadOldProximity = 0;
1016         }
1017
1018         priv->acecadOldButtons = buttons;
1019         priv->acecadOldX = x;
1020         priv->acecadOldY = y;
1021         priv->acecadOldZ = z;
1022         priv->acecadOldProximity = prox;
1023     }
1024     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
1025 }
1026 #endif
1027
1028 static void
1029 CloseProc (LocalDevicePtr local)
1030 {
1031 }
1032
1033 /*
1034  * The ConvertProc function may need to be tailored for your device.
1035  * This function converts the device's valuator outputs to x and y coordinates
1036  * to simulate mouse events.
1037  */
1038 static Bool
1039 ConvertProc (LocalDevicePtr local, int first, int num,
1040         int v0, int v1, int v2, int v3, int v4, int v5,
1041         int *x, int *y)
1042 {
1043     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1044
1045     /* TODO: should have a structure to hold which screen the
1046      * pointer is attached to? */
1047     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1048     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1049     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1050     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1051     return TRUE;
1052 }
1053
1054
1055 static Bool
1056 ReverseConvertProc (LocalDevicePtr local,
1057         int x, int  y,
1058         int *valuators)
1059 {
1060     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1061
1062     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
1063     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1064     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1065     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
1066
1067     return TRUE;
1068 }
1069
1070
1071 #define WriteString(str)\
1072     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1073
1074
1075 static Bool
1076 QueryHardware (AceCadPrivatePtr priv)
1077 {
1078
1079     /* Reset */
1080     WriteString("z0");
1081
1082     /* Wait */
1083     milisleep (250);
1084
1085     /* Prompt Mode in order to not be disturbed */
1086     WriteString(ACECAD_PROMPT_MODE);
1087
1088     /* Flush */
1089     while (XisbRead(priv->buffer) >= 0);
1090
1091     /* Ask for Config packet*/
1092     WriteString(ACECAD_CONFIG);
1093
1094     /* Read the packet */
1095     XisbBlockDuration (priv->buffer, 1000000);
1096     NewPacket (priv);
1097
1098     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1099
1100     if ((AceCadGetPacket (priv) == Success))
1101     {
1102         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1103         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1104         priv->acecadMaxZ = 512;
1105         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1106     }
1107     else
1108         return !Success;
1109
1110     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1111     return Success;
1112 }
1113
1114 #define BITS_PER_LONG (sizeof(long) * 8)
1115 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1116 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1117 #define OFF(x)  ((x)%BITS_PER_LONG)
1118 #define LONG(x) ((x)/BITS_PER_LONG)
1119
1120 #ifdef LINUX_INPUT
1121 static Bool
1122 USBQueryHardware (LocalDevicePtr local)
1123 {
1124     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1125     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1126     int                 i, j;
1127     int                 abs[5];
1128     char                name[256] = "Unknown";
1129
1130     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1131     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1132
1133     memset(bit, 0, sizeof(bit));
1134     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1135
1136     for (i = 0; i < EV_MAX; i++)
1137         if (test_bit(i, bit[0])) {
1138             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1139             for (j = 0; j < KEY_MAX; j++)
1140                 if (test_bit(j, bit[i])) {
1141                     if (i == EV_ABS) {
1142                         ioctl(local->fd, EVIOCGABS(j), abs);
1143                         switch (j) {
1144                             case ABS_X:
1145                                 priv->acecadMaxX = abs[2];
1146                                 break;
1147
1148                             case ABS_Y:
1149                                 priv->acecadMaxY = abs[2];
1150                                 break;
1151
1152                             case ABS_PRESSURE:
1153                                 priv->acecadMaxZ = abs[2];
1154                                 break;
1155                         }
1156                     }
1157                 }
1158         }
1159
1160     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1161     return Success;
1162 }
1163 #endif
1164
1165 static void
1166 NewPacket (AceCadPrivatePtr priv)
1167 {
1168     priv->packeti = 0;
1169 }
1170
1171 static Bool
1172 AceCadGetPacket (AceCadPrivatePtr priv)
1173 {
1174     int count = 0;
1175     int c = 0;
1176
1177     while((c = XisbRead(priv->buffer)) >= 0 )
1178     {
1179
1180         /*
1181          * fail after 500 bytes so the server doesn't hang forever if a
1182          * device sends bad data.
1183          */
1184         if (count++ > 500)
1185         {
1186             NewPacket (priv);
1187             return !Success;
1188         }
1189
1190         if (c & PHASING_BIT)
1191         {
1192             NewPacket(priv);
1193
1194             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1195             XisbBlockDuration (priv->buffer, 10000);
1196             priv->packet[priv->packeti++] = c;
1197             count = ACECAD_PACKET_SIZE - 1;
1198             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1199             {
1200                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1201                 priv->packet[priv->packeti++] = c;
1202             }
1203             XisbBlockDuration (priv->buffer, 0);
1204             if(c > 0)
1205                 return Success;
1206         }
1207     }
1208     return !Success;
1209 }