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