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 /* $XFree86: xc/programs/Xserver/hw/xfree86/input/acecad/acecad.c,v 1.4 2003/10/30 00:40:45 dawes Exp $ */
  27
  28 #include "config.h"
  29
  30 #include <xorgVersion.h>
  31 #define XORG_VERSION_BOTCHED XORG_VERSION_NUMERIC(1,4,0,0,0)
  32 #if XORG_VERSION_CURRENT >= XORG_VERSION_BOTCHED
  33 #define XORG_BOTCHED_INPUT 1
  34 #else
  35 #define XORG_BOTCHED_INPUT 0
  36 #endif
  37
  38 #define _ACECAD_C_
  39 /*****************************************************************************
  40  *      Standard Headers
  41  ****************************************************************************/
  42
  43 #ifdef LINUX_INPUT
  44 #include <asm/types.h>
  45 #include <linux/input.h>
  46 #ifndef EV_SYN
  47 #define EV_SYN EV_RST
  48 #define SYN_REPORT 0
  49 #endif
  50 #ifdef BUS_PCI
  51 #undef BUS_PCI
  52 #endif
  53 #ifdef BUS_ISA
  54 #undef BUS_ISA
  55 #endif
  56 #endif
  57
  58 #include <misc.h>
  59 #include <xf86.h>
  60 #ifndef NEED_XF86_TYPES
  61 #define NEED_XF86_TYPES
  62 #endif
  63 #include <xf86_OSproc.h>
  64 #include <xisb.h>
  65 #include <xf86Xinput.h>
  66 #include <exevents.h>
  67 #include <xf86Module.h>
  68
  69 #include <string.h>
  70 #include <stdio.h>
  71
  72 #include <errno.h>
  73 #ifdef LINUX_INPUT
  74 #include <fcntl.h>
  75 #ifdef LINUX_SYSFS
  76 #include <sysfs/libsysfs.h>
  77 #include <dlfcn.h>
  78 #endif
  79 #endif
  80
  81 /* Previously found in xf86Xinput.h */
  82 #ifdef DBG
  83 #undef DBG
  84 #endif
  85 #define DBG(lvl, f) {if ((lvl) <= xf86GetVerbosity()) f;}
  86
  87 /*****************************************************************************
  88  *      Local Headers
  89  ****************************************************************************/
  90 #include "acecad.h"
  91
  92 /*****************************************************************************
  93  *      Variables without includable headers
  94  ****************************************************************************/
  95
  96 /*****************************************************************************
  97  *      Local Variables
  98  ****************************************************************************/
  99
 100 #undef read
 101 #define read(a,b,c) xf86ReadSerial((a),(b),(c))
 102
 103 /* max number of input events to read in one read call */
 104 #define MAX_EVENTS 50
 105
 106 _X_EXPORT InputDriverRec ACECAD =
 107 {
 108         1,
 109         "acecad",
 110         NULL,
 111         AceCadPreInit,
 112         NULL,
 113         NULL,
 114         0
 115 };
 116
 117 #ifdef XFree86LOADER
 118 static XF86ModuleVersionInfo VersionRec =
 119 {
 120         "acecad",
 121         MODULEVENDORSTRING,
 122         MODINFOSTRING1,
 123         MODINFOSTRING2,
 124         XORG_VERSION_CURRENT,
 125         PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
 126         ABI_CLASS_XINPUT,
 127         ABI_XINPUT_VERSION,
 128         MOD_CLASS_XINPUT,
 129         {0, 0, 0, 0}
 130 };
 131
 132
 133 _X_EXPORT XF86ModuleData acecadModuleData = {
 134         &VersionRec,
 135         SetupProc,
 136         TearDownProc
 137 };
 138
 139 /*****************************************************************************
 140  *      Function Definitions
 141  ****************************************************************************/
 142
 143 static pointer
 144 SetupProc(      pointer module,
 145                 pointer options,
 146                 int *errmaj,
 147                 int *errmin )
 148 {
 149         xf86AddInputDriver(&ACECAD, module, 0);
 150         return module;
 151 }
 152
 153 static void
 154 TearDownProc( pointer p )
 155 {
 156 #if 0
 157         LocalDevicePtr local = (LocalDevicePtr) p;
 158         AceCadPrivatePtr priv = (AceCadPrivatePtr) local->private;
 159
 160         DeviceOff (local->dev);
 161
 162         xf86CloseSerial (local->fd);
 163         XisbFree (priv->buffer);
 164         xfree (priv);
 165         xfree (local->name);
 166         xfree (local);
 167 #endif
 168 }
 169 #endif
 170
 171 static const char *default_options[] =
 172 {
 173         "BaudRate", "9600",
 174         "StopBits", "1",
 175         "DataBits", "8",
 176         "Parity", "Odd",
 177         "Vmin", "1",
 178         "Vtime", "10",
 179         "FlowControl", "Xoff",
 180         NULL
 181 };
 182
 183 #ifdef LINUX_INPUT
 184 static int
 185 IsUSBLine(int fd)
 186 {
 187     int version;
 188     int err;
 189
 190     SYSCALL(err = ioctl(fd, EVIOCGVERSION, &version));
 191
 192     if (!err) {
 193         xf86MsgVerb(X_PROBED, 4, "Kernel Input driver version is %d.%d.%d\n",
 194                 version >> 16, (version >> 8) & 0xff, version & 0xff);
 195         return 1;
 196     } else {
 197         xf86MsgVerb(X_PROBED, 4, "No Kernel Input driver found\n");
 198         return 0;
 199     }
 200 }
 201
 202 /* Heavily inspired by synaptics/eventcomm.c */
 203
 204 #define DEV_INPUT_EVENT "/dev/input/event"
 205 #define EV_DEV_NAME_MAXLEN 64
 206 #define SET_EVENT_NUM(str, num) \
 207     snprintf(str, EV_DEV_NAME_MAXLEN, "%s%d", DEV_INPUT_EVENT, num)
 208
 209 static Bool
 210 fd_query_acecad(int fd, char *ace_name) {
 211     char name[256] = "Unknown";
 212     int cmp_at = strlen(ace_name);
 213     if (cmp_at > 255)
 214         cmp_at = 255;
 215     ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 216     name[cmp_at] = '\0';
 217     if (xf86NameCmp(name, ace_name) == 0)
 218         return TRUE;
 219     return FALSE;
 220 }
 221
 222 static char ace_name_default[7] = "acecad";
 223
 224 #ifdef LINUX_SYSFS
 225 static char usb_bus_name[4] = "usb";
 226 static char acecad_driver_name[11] = "usb_acecad";
 227 #endif
 228
 229 static Bool
 230 AceCadAutoDevProbe(LocalDevicePtr local, int verb)
 231 {
 232     /* We are trying to find the right eventX device */
 233     int i = 0;
 234     Bool have_evdev = FALSE;
 235     int noent_cnt = 0;
 236     const int max_skip = 10;
 237     char *ace_name = xf86FindOptionValue(local->options, "Name");
 238     char fname[EV_DEV_NAME_MAXLEN];
 239     int np;
 240
 241 #ifdef LINUX_SYSFS
 242     struct sysfs_bus *usb_bus = NULL;
 243     struct sysfs_driver *acecad_driver = NULL;
 244     struct sysfs_device *candidate = NULL;
 245     char *link = NULL;
 246     struct dlist *devs = NULL;
 247     struct dlist *links = NULL;
 248
 249     xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 250     usb_bus = sysfs_open_bus(usb_bus_name);
 251     if (usb_bus) {
 252         xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 253         acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 254         if (acecad_driver) {
 255             xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 256             devs = sysfs_get_driver_devices(acecad_driver);
 257             if (devs) {
 258                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 259                 dlist_for_each_data(devs, candidate, struct sysfs_device) {
 260                     xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 261                     links = sysfs_open_link_list(candidate->path);
 262                     dlist_for_each_data(links, link, char) {
 263                         if (sscanf(link, "input:event%d", &i) == 1) {
 264                             xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 265                             break;
 266                         }
 267                     }
 268                     sysfs_close_list(links);
 269                     if (i > 0) /* We found something */
 270                         break;
 271                 }
 272             } else
 273                 xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 274         } else
 275             xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 276     } else
 277         xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 278     sysfs_close_bus(usb_bus);
 279
 280     if (i > 0) {
 281         /* We found something */
 282         np = SET_EVENT_NUM(fname, i);
 283         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 284             xf86MsgVerb(X_WARNING, verb, "%s: unable to manage event device %d\n", local->name, i);
 285         } else {
 286             goto ProbeFound;
 287         }
 288     } else
 289         xf86MsgVerb(X_WARNING, verb, "%s: no Acecad devices found via sysfs\n", local->name);
 290
 291 #endif
 292
 293     if (!ace_name)
 294         ace_name = ace_name_default;
 295
 296     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 297     for (i = 0; ; i++) {
 298         int fd = -1;
 299         Bool is_acecad;
 300
 301         np = SET_EVENT_NUM(fname, i);
 302         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 303             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 304             break;
 305         }
 306         SYSCALL(fd = open(fname, O_RDONLY));
 307         if (fd < 0) {
 308             if (errno == ENOENT) {
 309                 if (++noent_cnt >= max_skip)
 310                     break;
 311                 else
 312                     continue;
 313             } else {
 314                 continue;
 315             }
 316         }
 317         noent_cnt = 0;
 318         have_evdev = TRUE;
 319         is_acecad = fd_query_acecad(fd, ace_name);
 320         SYSCALL(close(fd));
 321         if (is_acecad) {
 322             goto ProbeFound;
 323         }
 324     }
 325     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 326             local->name, i + 1, ace_name);
 327     if (i <= max_skip)
 328         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 329                 local->name);
 330     if (i > max_skip && !have_evdev)
 331         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 332     return FALSE;
 333
 334 ProbeFound:
 335     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 336             local->name, fname);
 337     xf86ReplaceStrOption(local->options, "Device", fname);
 338     return TRUE;
 339 }
 340
 341 #endif
 342
 343 static InputInfoPtr
 344 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 345 {
 346     LocalDevicePtr local = xf86AllocateInput(drv, 0);
 347     AceCadPrivatePtr priv = xcalloc (1, sizeof(AceCadPrivateRec));
 348     int speed;
 349     int msgtype;
 350     char *s;
 351
 352     if ((!local) || (!priv))
 353         goto SetupProc_fail;
 354
 355     memset(priv, 0, sizeof(AceCadPrivateRec));
 356
 357     local->name = dev->identifier;
 358     local->type_name = XI_TABLET;
 359     local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
 360 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 361     local->motion_history_proc = xf86GetMotionEvents;
 362 #endif
 363     local->control_proc = NULL;
 364     local->close_proc = CloseProc;
 365     local->switch_mode = NULL;
 366     local->conversion_proc = ConvertProc;
 367     local->reverse_conversion_proc = ReverseConvertProc;
 368     local->dev = NULL;
 369     local->private = priv;
 370     local->private_flags = 0;
 371     local->conf_idev = dev;
 372     local->device_control = DeviceControl;
 373     /*local->always_core_feedback = 0;*/
 374
 375     xf86CollectInputOptions(local, default_options, NULL);
 376
 377     xf86OptionListReport(local->options);
 378
 379     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 380
 381     s = xf86FindOptionValue(local->options, "Device");
 382     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 383 #ifdef LINUX_INPUT
 384         priv->flags |= AUTODEV_FLAG;
 385         if (!AceCadAutoDevProbe(local, 0))
 386         {
 387             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 388             goto SetupProc_fail;
 389         }
 390 #else
 391         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 392         goto SetupProc_fail;
 393 #endif
 394     }
 395
 396     local->fd = xf86OpenSerial (local->options);
 397     if (local->fd == -1)
 398     {
 399         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 400         goto SetupProc_fail;
 401     }
 402     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 403
 404 #ifdef LINUX_INPUT
 405     if (IsUSBLine(local->fd)) {
 406         priv->flags |= USB_FLAG;
 407
 408         local->read_input = USBReadInput;
 409
 410         if (USBQueryHardware(local) != Success)
 411         {
 412             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 413             goto SetupProc_fail;
 414         }
 415     } else
 416 #endif
 417     {
 418         local->read_input = ReadInput;
 419
 420         msgtype = X_DEFAULT;
 421         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 422             msgtype = X_CONFIG;
 423             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 424         } else {
 425             speed = 85;
 426         }
 427
 428         switch (speed)
 429         {
 430             case 120:
 431                 priv->acecadReportSpeed = 'Q';
 432                 break;
 433             case 85:
 434                 priv->acecadReportSpeed = 'R';
 435                 break;
 436             case 10:
 437                 priv->acecadReportSpeed = 'S';
 438                 break;
 439             case 2:
 440                 priv->acecadReportSpeed = 'T';
 441                 break;
 442             default:
 443                 priv->acecadReportSpeed = 'R';
 444                 speed = 85;
 445                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 446                 msgtype = X_DEFAULT;
 447         }
 448
 449         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 450
 451         priv->buffer = XisbNew (local->fd, 200);
 452
 453         /*
 454          * Verify that hardware is attached and fuctional
 455          */
 456         if (QueryHardware(priv) != Success)
 457         {
 458             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 459             goto SetupProc_fail;
 460         }
 461     }
 462
 463     s = xf86FindOptionValue(local->options, "Mode");
 464     msgtype = s ? X_CONFIG : X_DEFAULT;
 465     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 466     {
 467         priv->flags |= ABSOLUTE_FLAG;
 468     }
 469
 470     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 471     DBG (9, XisbTrace (priv->buffer, 1));
 472
 473     local->history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 474
 475     xf86ProcessCommonOptions(local, local->options);
 476
 477     local->flags |= XI86_CONFIGURED;
 478
 479     if (local->fd != -1)
 480     {
 481         RemoveEnabledDevice (local->fd);
 482         if (priv->buffer)
 483         {
 484             XisbFree(priv->buffer);
 485             priv->buffer = NULL;
 486         }
 487         xf86CloseSerial(local->fd);
 488     }
 489     RemoveEnabledDevice (local->fd);
 490     local->fd = -1;
 491     return local;
 492
 493     /*
 494      * If something went wrong, cleanup and return NULL
 495      */
 496 SetupProc_fail:
 497     if ((local) && (local->fd))
 498         xf86CloseSerial (local->fd);
 499     if ((priv) && (priv->buffer))
 500         XisbFree (priv->buffer);
 501     if (priv) {
 502         xfree (priv);
 503         if (local)
 504                 local->private = NULL;
 505     }
 506     xf86DeleteInput(local, 0);
 507     return NULL;
 508 }
 509
 510 static Bool
 511 DeviceControl (DeviceIntPtr dev, int mode)
 512 {
 513     Bool RetValue;
 514
 515     switch (mode)
 516     {
 517         case DEVICE_INIT:
 518             DeviceInit(dev);
 519             RetValue = Success;
 520             break;
 521         case DEVICE_ON:
 522             RetValue = DeviceOn(dev);
 523             break;
 524         case DEVICE_OFF:
 525             RetValue = DeviceOff(dev);
 526             break;
 527         case DEVICE_CLOSE:
 528             RetValue = DeviceClose(dev);
 529             break;
 530         default:
 531             RetValue = BadValue;
 532     }
 533
 534     return RetValue;
 535 }
 536
 537 static Bool
 538 DeviceOn (DeviceIntPtr dev)
 539 {
 540     char buffer[256];
 541     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 542     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 543
 544     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 545
 546     local->fd = xf86OpenSerial(local->options);
 547     if (local->fd == -1)
 548     {
 549         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 550         priv->flags &= ~AVAIL_FLAG;
 551 #ifdef LINUX_INPUT
 552         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 553             local->fd = xf86OpenSerial(local->options);
 554         if (local->fd == -1)
 555 #endif
 556             return !Success;
 557     }
 558     priv->flags |= AVAIL_FLAG;
 559
 560
 561     if (!(priv->flags & USB_FLAG)) {
 562         priv->buffer = XisbNew(local->fd, 200);
 563         if (!priv->buffer)
 564         {
 565             xf86CloseSerial(local->fd);
 566             local->fd = -1;
 567             return !Success;
 568         }
 569
 570         /* Rets qu'a l'envoyer a la tablette */
 571         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 572         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 573     }
 574
 575     xf86FlushInput(local->fd);
 576     xf86AddEnabledDevice (local);
 577     dev->public.on = TRUE;
 578     return Success;
 579 }
 580
 581 static Bool
 582 DeviceOff (DeviceIntPtr dev)
 583 {
 584     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 585     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 586
 587     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 588
 589     if (local->fd != -1)
 590     {
 591         RemoveEnabledDevice (local->fd);
 592         if (priv->buffer)
 593         {
 594             XisbFree(priv->buffer);
 595             priv->buffer = NULL;
 596         }
 597         xf86CloseSerial(local->fd);
 598     }
 599
 600
 601     xf86RemoveEnabledDevice (local);
 602     dev->public.on = FALSE;
 603     return Success;
 604 }
 605
 606 static Bool
 607 DeviceClose (DeviceIntPtr dev)
 608 {
 609     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 610
 611     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 612
 613     return Success;
 614 }
 615
 616 static void
 617 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 618 {
 619     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 620
 621     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 622 }
 623
 624 static Bool
 625 DeviceInit (DeviceIntPtr dev)
 626 {
 627     int rx, ry;
 628     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 629     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 630     unsigned char map[] =
 631     {0, 1, 2, 3};
 632
 633     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 634
 635     /* 3 boutons */
 636     if (InitButtonClassDeviceStruct (dev, 3, map) == FALSE)
 637     {
 638         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 639         return !Success;
 640     }
 641
 642     if (InitFocusClassDeviceStruct (dev) == FALSE)
 643     {
 644         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 645         return !Success;
 646     }
 647
 648     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 649         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 650         return !Success;
 651     }
 652
 653
 654     /* 3 axes */
 655     if (InitValuatorClassDeviceStruct (dev, 3,
 656 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 3
 657                 xf86GetMotionEvents,
 658 #endif
 659                 local->history_size,
 660                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 661             == FALSE)
 662     {
 663         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 664         return !Success;
 665     }
 666     else
 667     {
 668
 669         InitValuatorAxisStruct(dev,
 670                 0,
 671                 0,                      /* min val */
 672 #if XORG_BOTCHED_INPUT
 673                 screenInfo.screens[0]->width,
 674 #else
 675                 priv->acecadMaxX,       /* max val */
 676 #endif
 677                 1000,                   /* resolution */
 678                 0,                      /* min_res */
 679                 1000);                  /* max_res */
 680         InitValuatorAxisStruct(dev,
 681                 1,
 682                 0,                      /* min val */
 683 #if XORG_BOTCHED_INPUT
 684                 screenInfo.screens[0]->height,
 685 #else
 686                 priv->acecadMaxY,       /* max val */
 687 #endif
 688                 1000,                   /* resolution */
 689                 0,                      /* min_res */
 690                 1000);                  /* max_res */
 691         InitValuatorAxisStruct(dev,
 692                 2,
 693                 0,                      /* min val */
 694                 priv->acecadMaxZ,       /* max val */
 695                 1000,                   /* resolution */
 696                 0,                      /* min_res */
 697                 1000);          /* max_res */
 698
 699     }
 700
 701     if (InitProximityClassDeviceStruct (dev) == FALSE)
 702     {
 703         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 704         return !Success;
 705     }
 706
 707     xf86MotionHistoryAllocate (local);
 708
 709
 710     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 711        connaitre la taille... */
 712
 713     if (priv->acecadInc > 95)
 714         priv->acecadInc = 95;
 715     if (priv->acecadInc < 1)
 716     {
 717         /* guess the best increment value given video mode */
 718         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 719         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 720         if (rx < ry)
 721             priv->acecadInc = rx;
 722         else
 723             priv->acecadInc = ry;
 724         if (priv->acecadInc < 1)
 725             priv->acecadInc = 1;
 726     }
 727
 728     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 729
 730     return Success;
 731 }
 732
 733 static void
 734 ReadInput (LocalDevicePtr local)
 735 {
 736     int x, y, z;
 737     int prox, buttons;
 738     int is_core_pointer = 0, is_absolute;
 739     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 740
 741     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 742
 743     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 744 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 745     is_core_pointer = xf86IsCorePointer(local->dev);
 746 #endif
 747
 748     /*
 749      * set blocking to -1 on the first call because we know there is data to
 750      * read. Xisb automatically clears it after one successful read so that
 751      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 752      * read from blocking indefinately.
 753      */
 754     XisbBlockDuration (priv->buffer, -1);
 755
 756     while (AceCadGetPacket (priv) == Success)
 757     {
 758         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 759         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 760
 761         if (!(priv->flags & ABSOLUTE_FLAG))
 762         {
 763             x = priv->packet[0] & XSIGN_BIT? x:-x;
 764             y = priv->packet[0] & YSIGN_BIT? y:-y;
 765         }
 766         else
 767         {
 768             y = priv->acecadMaxY - y ;
 769         }
 770
 771
 772         z = ((int)priv->packet[5] << 2) |
 773             (((int)priv->packet[6] & 0x01) << 1) |
 774             (((int)priv->packet[6] & 0x10) >> 4);
 775
 776         buttons = ((int)priv->packet[0] & 0x07) |
 777             ((int)priv->packet[6] & 0x02 << 2);
 778
 779         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 780
 781         if (prox)
 782         {
 783             if (!(priv->acecadOldProximity))
 784                 if (!is_core_pointer)
 785                 {
 786                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 787                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 788                 }
 789
 790             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 791                     || (!is_absolute && (x || y)))
 792             {
 793                 if (is_absolute || priv->acecadOldProximity)
 794                 {
 795                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 796                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 797                 }
 798             }
 799
 800             if (priv->acecadOldButtons != buttons)
 801             {
 802                 int delta = buttons ^ priv->acecadOldButtons;
 803                 while (delta)
 804                 {
 805                     int id = ffs(delta);
 806                     delta &= ~(1 << (id-1));
 807
 808                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 809                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 810                 }
 811             }
 812
 813             priv->acecadOldButtons = buttons;
 814             priv->acecadOldX = x;
 815             priv->acecadOldY = y;
 816             priv->acecadOldZ = z;
 817             priv->acecadOldProximity = prox;
 818         }
 819         else
 820         {
 821             if (!is_core_pointer)
 822                 if (priv->acecadOldProximity)
 823                 {
 824                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 825                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 826                 }
 827             priv->acecadOldProximity = 0;
 828         }
 829     }
 830     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 831 }
 832
 833 #ifdef LINUX_INPUT
 834 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 835 static void
 836 USBReadInput (LocalDevicePtr local)
 837 {
 838     int len;
 839     struct input_event * event;
 840     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 841     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 842     int x = priv->acecadOldX;
 843     int y = priv->acecadOldY;
 844     int z = priv->acecadOldZ;
 845     int report_x, report_y;
 846     int prox = priv->acecadOldProximity;
 847     int buttons = priv->acecadOldButtons;
 848     int is_core_pointer = 0;
 849 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 850     is_core_pointer = xf86IsCorePointer(local->dev);
 851 #endif
 852     /* Is autodev active? */
 853     int autodev = priv->flags & AUTODEV_FLAG;
 854     /* Was the device available last time we checked? */
 855     int avail = priv->flags & AVAIL_FLAG;
 856
 857     SYSCALL(len = read(local->fd, eventbuf, sizeof(eventbuf)));
 858
 859     if (len <= 0) {
 860         if (avail) {
 861             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 862         }
 863         if (NOTAVAIL) {
 864             priv->flags &= ~AVAIL_FLAG;
 865             if(autodev) {
 866                 if (AceCadAutoDevProbe(local, 4)) {
 867                     DeviceOff(local->dev);
 868                     DeviceOn(local->dev);
 869                 }
 870             }
 871         }
 872         return;
 873     } else {
 874         if (!avail) {
 875             /* If the device wasn't available last time we checked */
 876             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 877             priv->flags |= AVAIL_FLAG;
 878         }
 879     }
 880
 881     for (event = (struct input_event *)eventbuf;
 882             event < (struct input_event *)(eventbuf+len); event++) {
 883
 884         switch (event->type) {
 885             case EV_SYN: /* 2.6.x */
 886                 if (event->code != SYN_REPORT)
 887                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 888                 break;
 889             case EV_ABS:
 890                 switch (event->code) {
 891                     case ABS_X:
 892                         x = event->value;
 893                         break;
 894
 895                     case ABS_Y:
 896                         y = event->value;
 897                         break;
 898
 899                     case ABS_PRESSURE:
 900                         z = event->value;
 901                         break;
 902
 903                     case ABS_MISC:
 904                         break;
 905
 906                 }
 907                 break; /* EV_ABS */
 908
 909             case EV_KEY:
 910                 switch (event->code) {
 911                     case BTN_TOOL_PEN:
 912                         prox = event->value;
 913                         break;
 914
 915                     case BTN_TOUCH:
 916                         buttons = set_bit(buttons,0,event->value);
 917                         break;
 918
 919                     case BTN_STYLUS:
 920                         buttons = set_bit(buttons,1,event->value);
 921                         break;
 922
 923                     case BTN_STYLUS2:
 924                         buttons = set_bit(buttons,2,event->value);
 925                         break;
 926                 }
 927                 break; /* EV_KEY */
 928             default:
 929                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 930         } /* switch event->type */
 931
 932         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 933          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 934          */
 935         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 936                     (event->type == EV_ABS && event->code == ABS_MISC)
 937              )) {
 938             continue;
 939         }
 940
 941         if (prox)
 942         {
 943 #if XORG_BOTCHED_INPUT
 944             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 945 #else
 946             report_x = x;
 947             report_y = y;
 948 #endif
 949             if (!(priv->acecadOldProximity))
 950                 if (!is_core_pointer)
 951                 {
 952                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 953                 }
 954
 955
 956             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 957
 958             if (priv->acecadOldButtons != buttons)
 959             {
 960                 int delta = buttons ^ priv->acecadOldButtons;
 961                 while (delta)
 962                 {
 963                     int id = ffs(delta);
 964                     delta &= ~(1 << (id-1));
 965
 966                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
 967                 }
 968             }
 969         }
 970         else
 971         {
 972             if (!is_core_pointer)
 973                 if (priv->acecadOldProximity)
 974                 {
 975                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
 976                 }
 977             priv->acecadOldProximity = 0;
 978         }
 979
 980         priv->acecadOldButtons = buttons;
 981         priv->acecadOldX = x;
 982         priv->acecadOldY = y;
 983         priv->acecadOldZ = z;
 984         priv->acecadOldProximity = prox;
 985     }
 986     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 987 }
 988 #endif
 989
 990 static void
 991 CloseProc (LocalDevicePtr local)
 992 {
 993 }
 994
 995 /*
 996  * The ConvertProc function may need to be tailored for your device.
 997  * This function converts the device's valuator outputs to x and y coordinates
 998  * to simulate mouse events.
 999  */
1000 static Bool
1001 ConvertProc (LocalDevicePtr local, int first, int num,
1002         int v0, int v1, int v2, int v3, int v4, int v5,
1003         int *x, int *y)
1004 {
1005     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1006
1007     /* TODO: should have a structure to hold which screen the
1008      * pointer is attached to? */
1009     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1010     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1011     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1012     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1013     return TRUE;
1014 }
1015
1016
1017 static Bool
1018 ReverseConvertProc (LocalDevicePtr local,
1019         int x, int  y,
1020         int *valuators)
1021 {
1022     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1023
1024     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
1025     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1026     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1027     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
1028
1029     return TRUE;
1030 }
1031
1032
1033 #define WriteString(str)\
1034     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1035
1036
1037 static Bool
1038 QueryHardware (AceCadPrivatePtr priv)
1039 {
1040
1041     /* Reset */
1042     WriteString("z0");
1043
1044     /* Wait */
1045     milisleep (250);
1046
1047     /* Prompt Mode in order to not be disturbed */
1048     WriteString(ACECAD_PROMPT_MODE);
1049
1050     /* Flush */
1051     while (XisbRead(priv->buffer) >= 0);
1052
1053     /* Ask for Config packet*/
1054     WriteString(ACECAD_CONFIG);
1055
1056     /* Read the packet */
1057     XisbBlockDuration (priv->buffer, 1000000);
1058     NewPacket (priv);
1059
1060     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1061
1062     if ((AceCadGetPacket (priv) == Success))
1063     {
1064         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1065         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1066         priv->acecadMaxZ = 512;
1067         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1068     }
1069     else
1070         return !Success;
1071
1072     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1073     return Success;
1074 }
1075
1076 #define BITS_PER_LONG (sizeof(long) * 8)
1077 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1078 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1079 #define OFF(x)  ((x)%BITS_PER_LONG)
1080 #define LONG(x) ((x)/BITS_PER_LONG)
1081
1082 #ifdef LINUX_INPUT
1083 static Bool
1084 USBQueryHardware (LocalDevicePtr local)
1085 {
1086     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1087     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1088     int                 i, j;
1089     int                 abs[5];
1090     char                name[256] = "Unknown";
1091
1092     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1093     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1094
1095     memset(bit, 0, sizeof(bit));
1096     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1097
1098     for (i = 0; i < EV_MAX; i++)
1099         if (test_bit(i, bit[0])) {
1100             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1101             for (j = 0; j < KEY_MAX; j++)
1102                 if (test_bit(j, bit[i])) {
1103                     if (i == EV_ABS) {
1104                         ioctl(local->fd, EVIOCGABS(j), abs);
1105                         switch (j) {
1106                             case ABS_X:
1107                                 priv->acecadMaxX = abs[2];
1108                                 break;
1109
1110                             case ABS_Y:
1111                                 priv->acecadMaxY = abs[2];
1112                                 break;
1113
1114                             case ABS_PRESSURE:
1115                                 priv->acecadMaxZ = abs[2];
1116                                 break;
1117                         }
1118                     }
1119                 }
1120         }
1121
1122     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1123     return Success;
1124 }
1125 #endif
1126
1127 static void
1128 NewPacket (AceCadPrivatePtr priv)
1129 {
1130     priv->packeti = 0;
1131 }
1132
1133 static Bool
1134 AceCadGetPacket (AceCadPrivatePtr priv)
1135 {
1136     int count = 0;
1137     int c = 0;
1138
1139     while((c = XisbRead(priv->buffer)) >= 0 )
1140     {
1141
1142         /*
1143          * fail after 500 bytes so the server doesn't hang forever if a
1144          * device sends bad data.
1145          */
1146         if (count++ > 500)
1147         {
1148             NewPacket (priv);
1149             return !Success;
1150         }
1151
1152         if (c & PHASING_BIT)
1153         {
1154             NewPacket(priv);
1155
1156             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1157             XisbBlockDuration (priv->buffer, 10000);
1158             priv->packet[priv->packeti++] = c;
1159             count = ACECAD_PACKET_SIZE - 1;
1160             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1161             {
1162                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1163                 priv->packet[priv->packeti++] = c;
1164             }
1165             XisbBlockDuration (priv->buffer, 0);
1166             if(c > 0)
1167                 return Success;
1168         }
1169     }
1170     return !Success;
1171 }