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