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

   1 /*
   2  * Copyright (c) 2001 Edouard TISSERANT <tissered@esstin.u-nancy.fr>
   3  * Parts inspired from Shane Watts <shane@bofh.asn.au> XFree86 3 Acecad Driver
   4  * Thanks to Emily, from AceCad, For giving me documents.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  20  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  21  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  *
  25  */
  26
  27 #include "config.h"
  28
  29 #include <xorgVersion.h>
  30 #define XORG_VERSION_BOTCHED XORG_VERSION_NUMERIC(1,4,0,0,0)
  31 #if XORG_VERSION_CURRENT >= XORG_VERSION_BOTCHED
  32 #define XORG_BOTCHED_INPUT 1
  33 #else
  34 #define XORG_BOTCHED_INPUT 0
  35 #endif
  36
  37 /*****************************************************************************
  38  *      Standard Headers
  39  ****************************************************************************/
  40
  41 #ifdef LINUX_INPUT
  42 #include <asm/types.h>
  43 #include <linux/input.h>
  44 #ifndef EV_SYN
  45 #define EV_SYN EV_RST
  46 #define SYN_REPORT 0
  47 #endif
  48 #ifdef BUS_PCI
  49 #undef BUS_PCI
  50 #endif
  51 #ifdef BUS_ISA
  52 #undef BUS_ISA
  53 #endif
  54 #endif
  55
  56 #include <misc.h>
  57 #include <xf86.h>
  58 #ifndef NEED_XF86_TYPES
  59 #define NEED_XF86_TYPES
  60 #endif
  61 #include <xf86_OSproc.h>
  62 #include <xisb.h>
  63 #include <xf86Xinput.h>
  64 #include <exevents.h>
  65 #include <xf86Module.h>
  66
  67 #include <string.h>
  68 #include <stdio.h>
  69
  70 #include <errno.h>
  71 #ifdef LINUX_INPUT
  72 #include <fcntl.h>
  73 #ifdef LINUX_SYSFS
  74 #include <sysfs/libsysfs.h>
  75 #include <dlfcn.h>
  76 #endif
  77 #endif
  78
  79 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
  80 #include <X11/Xatom.h>
  81 #include <xserver-properties.h>
  82 #endif
  83
  84 /* Previously found in xf86Xinput.h */
  85 #ifdef DBG
  86 #undef DBG
  87 #endif
  88 #define DBG(lvl, f) {if ((lvl) <= xf86GetVerbosity()) f;}
  89
  90 /*****************************************************************************
  91  *      Local Headers
  92  ****************************************************************************/
  93 #include "acecad.h"
  94
  95 /*****************************************************************************
  96  *      Variables without includable headers
  97  ****************************************************************************/
  98
  99 /*****************************************************************************
 100  *      Local Variables
 101  ****************************************************************************/
 102
 103 #undef read
 104 #define read(a,b,c) xf86ReadSerial((a),(b),(c))
 105
 106 /* max number of input events to read in one read call */
 107 #define MAX_EVENTS 50
 108
 109 _X_EXPORT InputDriverRec ACECAD =
 110 {
 111         1,
 112         "acecad",
 113         NULL,
 114         AceCadPreInit,
 115         NULL,
 116         NULL,
 117         0
 118 };
 119
 120 static XF86ModuleVersionInfo VersionRec =
 121 {
 122         "acecad",
 123         MODULEVENDORSTRING,
 124         MODINFOSTRING1,
 125         MODINFOSTRING2,
 126         XORG_VERSION_CURRENT,
 127         PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
 128         ABI_CLASS_XINPUT,
 129         ABI_XINPUT_VERSION,
 130         MOD_CLASS_XINPUT,
 131         {0, 0, 0, 0}
 132 };
 133
 134
 135 _X_EXPORT XF86ModuleData acecadModuleData = {
 136         &VersionRec,
 137         SetupProc,
 138         TearDownProc
 139 };
 140
 141 /*****************************************************************************
 142  *      Function Definitions
 143  ****************************************************************************/
 144
 145 static pointer
 146 SetupProc(      pointer module,
 147                 pointer options,
 148                 int *errmaj,
 149                 int *errmin )
 150 {
 151         xf86AddInputDriver(&ACECAD, module, 0);
 152         return module;
 153 }
 154
 155 static void
 156 TearDownProc( pointer p )
 157 {
 158 #if 0
 159         LocalDevicePtr local = (LocalDevicePtr) p;
 160         AceCadPrivatePtr priv = (AceCadPrivatePtr) local->private;
 161
 162         DeviceOff (local->dev);
 163
 164         xf86CloseSerial (local->fd);
 165         XisbFree (priv->buffer);
 166         xfree (priv);
 167         xfree (local->name);
 168         xfree (local);
 169 #endif
 170 }
 171
 172 static const char *default_options[] =
 173 {
 174         "BaudRate", "9600",
 175         "StopBits", "1",
 176         "DataBits", "8",
 177         "Parity", "Odd",
 178         "Vmin", "1",
 179         "Vtime", "10",
 180         "FlowControl", "Xoff",
 181         NULL
 182 };
 183
 184 #ifdef LINUX_INPUT
 185 static int
 186 IsUSBLine(int fd)
 187 {
 188     int version;
 189     int err;
 190
 191     SYSCALL(err = ioctl(fd, EVIOCGVERSION, &version));
 192
 193     if (!err) {
 194         xf86MsgVerb(X_PROBED, 4, "Kernel Input driver version is %d.%d.%d\n",
 195                 version >> 16, (version >> 8) & 0xff, version & 0xff);
 196         return 1;
 197     } else {
 198         xf86MsgVerb(X_PROBED, 4, "No Kernel Input driver found\n");
 199         return 0;
 200     }
 201 }
 202
 203 /* Heavily inspired by synaptics/eventcomm.c */
 204
 205 #define DEV_INPUT_EVENT "/dev/input/event"
 206 #define EV_DEV_NAME_MAXLEN 64
 207 #define SET_EVENT_NUM(str, num) \
 208     snprintf(str, EV_DEV_NAME_MAXLEN, "%s%d", DEV_INPUT_EVENT, num)
 209
 210 static Bool
 211 fd_query_acecad(int fd, char *ace_name) {
 212     char name[256] = "Unknown";
 213     int cmp_at = strlen(ace_name);
 214     if (cmp_at > 255)
 215         cmp_at = 255;
 216     ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 217     name[cmp_at] = '\0';
 218     if (xf86NameCmp(name, ace_name) == 0)
 219         return TRUE;
 220     return FALSE;
 221 }
 222
 223 static char ace_name_default[7] = "acecad";
 224
 225 #ifdef LINUX_SYSFS
 226 static char usb_bus_name[4] = "usb";
 227 static char acecad_driver_name[11] = "usb_acecad";
 228 #endif
 229
 230 static Bool
 231 AceCadAutoDevProbe(LocalDevicePtr local, int verb)
 232 {
 233     /* We are trying to find the right eventX device */
 234     int i = 0;
 235     Bool have_evdev = FALSE;
 236     int noent_cnt = 0;
 237     const int max_skip = 10;
 238     char *ace_name = xf86FindOptionValue(local->options, "Name");
 239     char fname[EV_DEV_NAME_MAXLEN];
 240     int np;
 241
 242 #ifdef LINUX_SYSFS
 243     struct sysfs_bus *usb_bus = NULL;
 244     struct sysfs_driver *acecad_driver = NULL;
 245     struct sysfs_device *candidate = NULL;
 246     char *link = NULL;
 247     struct dlist *devs = NULL;
 248     struct dlist *links = NULL;
 249
 250     xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 251     usb_bus = sysfs_open_bus(usb_bus_name);
 252     if (usb_bus) {
 253         xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 254         acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 255         if (acecad_driver) {
 256             xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 257             devs = sysfs_get_driver_devices(acecad_driver);
 258             if (devs) {
 259                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 260                 dlist_for_each_data(devs, candidate, struct sysfs_device) {
 261                     xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 262                     links = sysfs_open_link_list(candidate->path);
 263                     dlist_for_each_data(links, link, char) {
 264                         if (sscanf(link, "input:event%d", &i) == 1) {
 265                             xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 266                             break;
 267                         }
 268                     }
 269                     sysfs_close_list(links);
 270                     if (i > 0) /* We found something */
 271                         break;
 272                 }
 273             } else
 274                 xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 275         } else
 276             xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 277     } else
 278         xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 279     sysfs_close_bus(usb_bus);
 280
 281     if (i > 0) {
 282         /* We found something */
 283         np = SET_EVENT_NUM(fname, i);
 284         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 285             xf86MsgVerb(X_WARNING, verb, "%s: unable to manage event device %d\n", local->name, i);
 286         } else {
 287             goto ProbeFound;
 288         }
 289     } else
 290         xf86MsgVerb(X_WARNING, verb, "%s: no Acecad devices found via sysfs\n", local->name);
 291
 292 #endif
 293
 294     if (!ace_name)
 295         ace_name = ace_name_default;
 296
 297     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 298     for (i = 0; ; i++) {
 299         int fd = -1;
 300         Bool is_acecad;
 301
 302         np = SET_EVENT_NUM(fname, i);
 303         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 304             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 305             break;
 306         }
 307         SYSCALL(fd = open(fname, O_RDONLY));
 308         if (fd < 0) {
 309             if (errno == ENOENT) {
 310                 if (++noent_cnt >= max_skip)
 311                     break;
 312                 else
 313                     continue;
 314             } else {
 315                 continue;
 316             }
 317         }
 318         noent_cnt = 0;
 319         have_evdev = TRUE;
 320         is_acecad = fd_query_acecad(fd, ace_name);
 321         SYSCALL(close(fd));
 322         if (is_acecad) {
 323             goto ProbeFound;
 324         }
 325     }
 326     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 327             local->name, i + 1, ace_name);
 328     if (i <= max_skip)
 329         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 330                 local->name);
 331     if (i > max_skip && !have_evdev)
 332         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 333     return FALSE;
 334
 335 ProbeFound:
 336     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 337             local->name, fname);
 338     xf86ReplaceStrOption(local->options, "Device", fname);
 339     return TRUE;
 340 }
 341
 342 #endif
 343
 344 static InputInfoPtr
 345 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 346 {
 347     LocalDevicePtr local = xf86AllocateInput(drv, 0);
 348     AceCadPrivatePtr priv = xcalloc (1, sizeof(AceCadPrivateRec));
 349     int speed;
 350     int msgtype;
 351     char *s;
 352
 353     if ((!local) || (!priv))
 354         goto SetupProc_fail;
 355
 356     memset(priv, 0, sizeof(AceCadPrivateRec));
 357
 358     local->name = dev->identifier;
 359     local->type_name = XI_TABLET;
 360     local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
 361 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 362     local->motion_history_proc = xf86GetMotionEvents;
 363 #endif
 364     local->control_proc = NULL;
 365     local->close_proc = CloseProc;
 366     local->switch_mode = NULL;
 367     local->conversion_proc = ConvertProc;
 368     local->reverse_conversion_proc = ReverseConvertProc;
 369     local->dev = NULL;
 370     local->private = priv;
 371     local->private_flags = 0;
 372     local->conf_idev = dev;
 373     local->device_control = DeviceControl;
 374     /*local->always_core_feedback = 0;*/
 375
 376     xf86CollectInputOptions(local, default_options, NULL);
 377
 378     xf86OptionListReport(local->options);
 379
 380     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 381
 382     s = xf86FindOptionValue(local->options, "Device");
 383     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 384 #ifdef LINUX_INPUT
 385         priv->flags |= AUTODEV_FLAG;
 386         if (!AceCadAutoDevProbe(local, 0))
 387         {
 388             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 389             goto SetupProc_fail;
 390         }
 391 #else
 392         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 393         goto SetupProc_fail;
 394 #endif
 395     }
 396
 397     local->fd = xf86OpenSerial (local->options);
 398     if (local->fd == -1)
 399     {
 400         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 401         goto SetupProc_fail;
 402     }
 403     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 404
 405 #ifdef LINUX_INPUT
 406     if (IsUSBLine(local->fd)) {
 407         priv->flags |= USB_FLAG;
 408
 409         local->read_input = USBReadInput;
 410
 411         if (USBQueryHardware(local) != Success)
 412         {
 413             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 414             goto SetupProc_fail;
 415         }
 416     } else
 417 #endif
 418     {
 419         local->read_input = ReadInput;
 420
 421         msgtype = X_DEFAULT;
 422         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 423             msgtype = X_CONFIG;
 424             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 425         } else {
 426             speed = 85;
 427         }
 428
 429         switch (speed)
 430         {
 431             case 120:
 432                 priv->acecadReportSpeed = 'Q';
 433                 break;
 434             case 85:
 435                 priv->acecadReportSpeed = 'R';
 436                 break;
 437             case 10:
 438                 priv->acecadReportSpeed = 'S';
 439                 break;
 440             case 2:
 441                 priv->acecadReportSpeed = 'T';
 442                 break;
 443             default:
 444                 priv->acecadReportSpeed = 'R';
 445                 speed = 85;
 446                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 447                 msgtype = X_DEFAULT;
 448         }
 449
 450         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 451
 452         priv->buffer = XisbNew (local->fd, 200);
 453
 454         /*
 455          * Verify that hardware is attached and fuctional
 456          */
 457         if (QueryHardware(priv) != Success)
 458         {
 459             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 460             goto SetupProc_fail;
 461         }
 462     }
 463
 464     s = xf86FindOptionValue(local->options, "Mode");
 465     msgtype = s ? X_CONFIG : X_DEFAULT;
 466     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 467     {
 468         priv->flags |= ABSOLUTE_FLAG;
 469     }
 470
 471     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 472     DBG (9, XisbTrace (priv->buffer, 1));
 473
 474     local->history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 475
 476     xf86ProcessCommonOptions(local, local->options);
 477
 478     local->flags |= XI86_CONFIGURED;
 479
 480     if (local->fd != -1)
 481     {
 482         RemoveEnabledDevice (local->fd);
 483         if (priv->buffer)
 484         {
 485             XisbFree(priv->buffer);
 486             priv->buffer = NULL;
 487         }
 488         xf86CloseSerial(local->fd);
 489     }
 490     RemoveEnabledDevice (local->fd);
 491     local->fd = -1;
 492     return local;
 493
 494     /*
 495      * If something went wrong, cleanup and return NULL
 496      */
 497 SetupProc_fail:
 498     if ((local) && (local->fd))
 499         xf86CloseSerial (local->fd);
 500     if ((priv) && (priv->buffer))
 501         XisbFree (priv->buffer);
 502     if (priv) {
 503         xfree (priv);
 504         if (local)
 505                 local->private = NULL;
 506     }
 507     xf86DeleteInput(local, 0);
 508     return NULL;
 509 }
 510
 511 static Bool
 512 DeviceControl (DeviceIntPtr dev, int mode)
 513 {
 514     Bool RetValue;
 515
 516     switch (mode)
 517     {
 518         case DEVICE_INIT:
 519             DeviceInit(dev);
 520             RetValue = Success;
 521             break;
 522         case DEVICE_ON:
 523             RetValue = DeviceOn(dev);
 524             break;
 525         case DEVICE_OFF:
 526             RetValue = DeviceOff(dev);
 527             break;
 528         case DEVICE_CLOSE:
 529             RetValue = DeviceClose(dev);
 530             break;
 531         default:
 532             RetValue = BadValue;
 533     }
 534
 535     return RetValue;
 536 }
 537
 538 static Bool
 539 DeviceOn (DeviceIntPtr dev)
 540 {
 541     char buffer[256];
 542     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 543     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 544
 545     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 546
 547     local->fd = xf86OpenSerial(local->options);
 548     if (local->fd == -1)
 549     {
 550         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 551         priv->flags &= ~AVAIL_FLAG;
 552 #ifdef LINUX_INPUT
 553         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 554             local->fd = xf86OpenSerial(local->options);
 555         if (local->fd == -1)
 556 #endif
 557             return !Success;
 558     }
 559     priv->flags |= AVAIL_FLAG;
 560
 561
 562     if (!(priv->flags & USB_FLAG)) {
 563         priv->buffer = XisbNew(local->fd, 200);
 564         if (!priv->buffer)
 565         {
 566             xf86CloseSerial(local->fd);
 567             local->fd = -1;
 568             return !Success;
 569         }
 570
 571         /* Rets qu'a l'envoyer a la tablette */
 572         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 573         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 574     }
 575
 576     xf86FlushInput(local->fd);
 577     xf86AddEnabledDevice (local);
 578     dev->public.on = TRUE;
 579     return Success;
 580 }
 581
 582 static Bool
 583 DeviceOff (DeviceIntPtr dev)
 584 {
 585     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 586     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 587
 588     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 589
 590     if (local->fd != -1)
 591     {
 592         RemoveEnabledDevice (local->fd);
 593         if (priv->buffer)
 594         {
 595             XisbFree(priv->buffer);
 596             priv->buffer = NULL;
 597         }
 598         xf86CloseSerial(local->fd);
 599     }
 600
 601
 602     xf86RemoveEnabledDevice (local);
 603     dev->public.on = FALSE;
 604     return Success;
 605 }
 606
 607 static Bool
 608 DeviceClose (DeviceIntPtr dev)
 609 {
 610     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 611
 612     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 613
 614     return Success;
 615 }
 616
 617 static void
 618 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 619 {
 620     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 621
 622     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 623 }
 624
 625 static Bool
 626 DeviceInit (DeviceIntPtr dev)
 627 {
 628     int rx, ry;
 629     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 630     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 631     unsigned char map[] = {0, 1, 2, 3};
 632 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 633     Atom btn_labels[3];
 634     Atom axes_labels[3];
 635
 636     btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
 637     btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
 638     btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
 639
 640     if ((priv->flags & ABSOLUTE_FLAG))
 641     {
 642         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
 643         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
 644         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_PRESSURE);
 645     } else
 646     {
 647         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
 648         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
 649         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Z);
 650     }
 651 #endif
 652
 653     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 654
 655     /* 3 boutons */
 656     if (InitButtonClassDeviceStruct (dev, 3,
 657 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 658                 btn_labels,
 659 #endif
 660                 map) == FALSE)
 661     {
 662         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 663         return !Success;
 664     }
 665
 666     if (InitFocusClassDeviceStruct (dev) == FALSE)
 667     {
 668         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 669         return !Success;
 670     }
 671
 672     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 673         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 674         return !Success;
 675     }
 676
 677
 678     /* 3 axes */
 679     if (InitValuatorClassDeviceStruct (dev, 3,
 680 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 681                 axes_labels,
 682 #endif
 683 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 3
 684                 xf86GetMotionEvents,
 685 #endif
 686                 local->history_size,
 687                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 688             == FALSE)
 689     {
 690         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 691         return !Success;
 692     }
 693     else
 694     {
 695
 696         InitValuatorAxisStruct(dev,
 697                 0,
 698 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 699                 axes_labels[0],
 700 #endif
 701                 0,                      /* min val */
 702 #if XORG_BOTCHED_INPUT
 703                 screenInfo.screens[0]->width,
 704 #else
 705                 priv->acecadMaxX,       /* max val */
 706 #endif
 707                 1000,                   /* resolution */
 708                 0,                      /* min_res */
 709                 1000);                  /* max_res */
 710         InitValuatorAxisStruct(dev,
 711                 1,
 712 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 713                 axes_labels[1],
 714 #endif
 715                 0,                      /* min val */
 716 #if XORG_BOTCHED_INPUT
 717                 screenInfo.screens[0]->height,
 718 #else
 719                 priv->acecadMaxY,       /* max val */
 720 #endif
 721                 1000,                   /* resolution */
 722                 0,                      /* min_res */
 723                 1000);                  /* max_res */
 724         InitValuatorAxisStruct(dev,
 725                 2,
 726 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 727                 axes_labels[2],
 728 #endif
 729                 0,                      /* min val */
 730                 priv->acecadMaxZ,       /* max val */
 731                 1000,                   /* resolution */
 732                 0,                      /* min_res */
 733                 1000);          /* max_res */
 734
 735     }
 736
 737     if (InitProximityClassDeviceStruct (dev) == FALSE)
 738     {
 739         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 740         return !Success;
 741     }
 742
 743     xf86MotionHistoryAllocate (local);
 744
 745
 746     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 747        connaitre la taille... */
 748
 749     if (priv->acecadInc > 95)
 750         priv->acecadInc = 95;
 751     if (priv->acecadInc < 1)
 752     {
 753         /* guess the best increment value given video mode */
 754         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 755         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 756         if (rx < ry)
 757             priv->acecadInc = rx;
 758         else
 759             priv->acecadInc = ry;
 760         if (priv->acecadInc < 1)
 761             priv->acecadInc = 1;
 762     }
 763
 764     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 765
 766     return Success;
 767 }
 768
 769 static void
 770 ReadInput (LocalDevicePtr local)
 771 {
 772     int x, y, z;
 773     int prox, buttons;
 774     int is_core_pointer = 0, is_absolute;
 775     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 776
 777     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 778
 779     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 780 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 781     is_core_pointer = xf86IsCorePointer(local->dev);
 782 #endif
 783
 784     /*
 785      * set blocking to -1 on the first call because we know there is data to
 786      * read. Xisb automatically clears it after one successful read so that
 787      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 788      * read from blocking indefinately.
 789      */
 790     XisbBlockDuration (priv->buffer, -1);
 791
 792     while (AceCadGetPacket (priv) == Success)
 793     {
 794         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 795         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 796
 797         if (!(priv->flags & ABSOLUTE_FLAG))
 798         {
 799             x = priv->packet[0] & XSIGN_BIT? x:-x;
 800             y = priv->packet[0] & YSIGN_BIT? y:-y;
 801         }
 802         else
 803         {
 804             y = priv->acecadMaxY - y ;
 805         }
 806
 807
 808         z = ((int)priv->packet[5] << 2) |
 809             (((int)priv->packet[6] & 0x01) << 1) |
 810             (((int)priv->packet[6] & 0x10) >> 4);
 811
 812         buttons = ((int)priv->packet[0] & 0x07) |
 813             ((int)priv->packet[6] & 0x02 << 2);
 814
 815         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 816
 817         if (prox)
 818         {
 819             if (!(priv->acecadOldProximity))
 820                 if (!is_core_pointer)
 821                 {
 822                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 823                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 824                 }
 825
 826             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 827                     || (!is_absolute && (x || y)))
 828             {
 829                 if (is_absolute || priv->acecadOldProximity)
 830                 {
 831                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 832                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 833                 }
 834             }
 835
 836             if (priv->acecadOldButtons != buttons)
 837             {
 838                 int delta = buttons ^ priv->acecadOldButtons;
 839                 while (delta)
 840                 {
 841                     int id = ffs(delta);
 842                     delta &= ~(1 << (id-1));
 843
 844                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 845                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 846                 }
 847             }
 848
 849             priv->acecadOldButtons = buttons;
 850             priv->acecadOldX = x;
 851             priv->acecadOldY = y;
 852             priv->acecadOldZ = z;
 853             priv->acecadOldProximity = prox;
 854         }
 855         else
 856         {
 857             if (!is_core_pointer)
 858                 if (priv->acecadOldProximity)
 859                 {
 860                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 861                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 862                 }
 863             priv->acecadOldProximity = 0;
 864         }
 865     }
 866     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 867 }
 868
 869 #ifdef LINUX_INPUT
 870 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 871 static void
 872 USBReadInput (LocalDevicePtr local)
 873 {
 874     int len;
 875     struct input_event * event;
 876     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 877     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 878     int x = priv->acecadOldX;
 879     int y = priv->acecadOldY;
 880     int z = priv->acecadOldZ;
 881     int report_x, report_y;
 882     int prox = priv->acecadOldProximity;
 883     int buttons = priv->acecadOldButtons;
 884     int is_core_pointer = 0;
 885 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 886     is_core_pointer = xf86IsCorePointer(local->dev);
 887 #endif
 888     /* Is autodev active? */
 889     int autodev = priv->flags & AUTODEV_FLAG;
 890     /* Was the device available last time we checked? */
 891     int avail = priv->flags & AVAIL_FLAG;
 892
 893     SYSCALL(len = read(local->fd, eventbuf, sizeof(eventbuf)));
 894
 895     if (len <= 0) {
 896         if (avail) {
 897             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 898         }
 899         if (NOTAVAIL) {
 900             priv->flags &= ~AVAIL_FLAG;
 901             if(autodev) {
 902                 if (AceCadAutoDevProbe(local, 4)) {
 903                     DeviceOff(local->dev);
 904                     DeviceOn(local->dev);
 905                 }
 906             }
 907         }
 908         return;
 909     } else {
 910         if (!avail) {
 911             /* If the device wasn't available last time we checked */
 912             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 913             priv->flags |= AVAIL_FLAG;
 914         }
 915     }
 916
 917     for (event = (struct input_event *)eventbuf;
 918             event < (struct input_event *)(eventbuf+len); event++) {
 919
 920         switch (event->type) {
 921             case EV_SYN: /* 2.6.x */
 922                 if (event->code != SYN_REPORT)
 923                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 924                 break;
 925             case EV_ABS:
 926                 switch (event->code) {
 927                     case ABS_X:
 928                         x = event->value;
 929                         break;
 930
 931                     case ABS_Y:
 932                         y = event->value;
 933                         break;
 934
 935                     case ABS_PRESSURE:
 936                         z = event->value;
 937                         break;
 938
 939                     case ABS_MISC:
 940                         break;
 941
 942                 }
 943                 break; /* EV_ABS */
 944
 945             case EV_KEY:
 946                 switch (event->code) {
 947                     case BTN_TOOL_PEN:
 948                         prox = event->value;
 949                         break;
 950
 951                     case BTN_TOUCH:
 952                         buttons = set_bit(buttons,0,event->value);
 953                         break;
 954
 955                     case BTN_STYLUS:
 956                         buttons = set_bit(buttons,1,event->value);
 957                         break;
 958
 959                     case BTN_STYLUS2:
 960                         buttons = set_bit(buttons,2,event->value);
 961                         break;
 962                 }
 963                 break; /* EV_KEY */
 964             default:
 965                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 966         } /* switch event->type */
 967
 968         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 969          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 970          */
 971         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 972                     (event->type == EV_ABS && event->code == ABS_MISC)
 973              )) {
 974             continue;
 975         }
 976
 977         if (prox)
 978         {
 979 #if XORG_BOTCHED_INPUT
 980             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 981 #else
 982             report_x = x;
 983             report_y = y;
 984 #endif
 985             if (!(priv->acecadOldProximity))
 986                 if (!is_core_pointer)
 987                 {
 988                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 989                 }
 990
 991
 992             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 993
 994             if (priv->acecadOldButtons != buttons)
 995             {
 996                 int delta = buttons ^ priv->acecadOldButtons;
 997                 while (delta)
 998                 {
 999                     int id = ffs(delta);
1000                     delta &= ~(1 << (id-1));
1001
1002                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
1003                 }
1004             }
1005         }
1006         else
1007         {
1008             if (!is_core_pointer)
1009                 if (priv->acecadOldProximity)
1010                 {
1011                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
1012                 }
1013             priv->acecadOldProximity = 0;
1014         }
1015
1016         priv->acecadOldButtons = buttons;
1017         priv->acecadOldX = x;
1018         priv->acecadOldY = y;
1019         priv->acecadOldZ = z;
1020         priv->acecadOldProximity = prox;
1021     }
1022     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
1023 }
1024 #endif
1025
1026 static void
1027 CloseProc (LocalDevicePtr local)
1028 {
1029 }
1030
1031 /*
1032  * The ConvertProc function may need to be tailored for your device.
1033  * This function converts the device's valuator outputs to x and y coordinates
1034  * to simulate mouse events.
1035  */
1036 static Bool
1037 ConvertProc (LocalDevicePtr local, int first, int num,
1038         int v0, int v1, int v2, int v3, int v4, int v5,
1039         int *x, int *y)
1040 {
1041     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1042
1043     /* TODO: should have a structure to hold which screen the
1044      * pointer is attached to? */
1045     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1046     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1047     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1048     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1049     return TRUE;
1050 }
1051
1052
1053 static Bool
1054 ReverseConvertProc (LocalDevicePtr local,
1055         int x, int  y,
1056         int *valuators)
1057 {
1058     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1059
1060     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
1061     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1062     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1063     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
1064
1065     return TRUE;
1066 }
1067
1068
1069 #define WriteString(str)\
1070     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1071
1072
1073 static Bool
1074 QueryHardware (AceCadPrivatePtr priv)
1075 {
1076
1077     /* Reset */
1078     WriteString("z0");
1079
1080     /* Wait */
1081     milisleep (250);
1082
1083     /* Prompt Mode in order to not be disturbed */
1084     WriteString(ACECAD_PROMPT_MODE);
1085
1086     /* Flush */
1087     while (XisbRead(priv->buffer) >= 0);
1088
1089     /* Ask for Config packet*/
1090     WriteString(ACECAD_CONFIG);
1091
1092     /* Read the packet */
1093     XisbBlockDuration (priv->buffer, 1000000);
1094     NewPacket (priv);
1095
1096     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1097
1098     if ((AceCadGetPacket (priv) == Success))
1099     {
1100         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1101         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1102         priv->acecadMaxZ = 512;
1103         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1104     }
1105     else
1106         return !Success;
1107
1108     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1109     return Success;
1110 }
1111
1112 #define BITS_PER_LONG (sizeof(long) * 8)
1113 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1114 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1115 #define OFF(x)  ((x)%BITS_PER_LONG)
1116 #define LONG(x) ((x)/BITS_PER_LONG)
1117
1118 #ifdef LINUX_INPUT
1119 static Bool
1120 USBQueryHardware (LocalDevicePtr local)
1121 {
1122     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1123     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1124     int                 i, j;
1125     int                 abs[5];
1126     char                name[256] = "Unknown";
1127
1128     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1129     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1130
1131     memset(bit, 0, sizeof(bit));
1132     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1133
1134     for (i = 0; i < EV_MAX; i++)
1135         if (test_bit(i, bit[0])) {
1136             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1137             for (j = 0; j < KEY_MAX; j++)
1138                 if (test_bit(j, bit[i])) {
1139                     if (i == EV_ABS) {
1140                         ioctl(local->fd, EVIOCGABS(j), abs);
1141                         switch (j) {
1142                             case ABS_X:
1143                                 priv->acecadMaxX = abs[2];
1144                                 break;
1145
1146                             case ABS_Y:
1147                                 priv->acecadMaxY = abs[2];
1148                                 break;
1149
1150                             case ABS_PRESSURE:
1151                                 priv->acecadMaxZ = abs[2];
1152                                 break;
1153                         }
1154                     }
1155                 }
1156         }
1157
1158     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1159     return Success;
1160 }
1161 #endif
1162
1163 static void
1164 NewPacket (AceCadPrivatePtr priv)
1165 {
1166     priv->packeti = 0;
1167 }
1168
1169 static Bool
1170 AceCadGetPacket (AceCadPrivatePtr priv)
1171 {
1172     int count = 0;
1173     int c = 0;
1174
1175     while((c = XisbRead(priv->buffer)) >= 0 )
1176     {
1177
1178         /*
1179          * fail after 500 bytes so the server doesn't hang forever if a
1180          * device sends bad data.
1181          */
1182         if (count++ > 500)
1183         {
1184             NewPacket (priv);
1185             return !Success;
1186         }
1187
1188         if (c & PHASING_BIT)
1189         {
1190             NewPacket(priv);
1191
1192             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1193             XisbBlockDuration (priv->buffer, 10000);
1194             priv->packet[priv->packeti++] = c;
1195             count = ACECAD_PACKET_SIZE - 1;
1196             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1197             {
1198                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1199                 priv->packet[priv->packeti++] = c;
1200             }
1201             XisbBlockDuration (priv->buffer, 0);
1202             if(c > 0)
1203                 return Success;
1204         }
1205     }
1206     return !Success;
1207 }