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

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