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     void *libsysfs = NULL;
 249
 250     if ((libsysfs = dlopen("libsysfs.so", RTLD_NOW | RTLD_GLOBAL))) {
 251         xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 252         usb_bus = sysfs_open_bus(usb_bus_name);
 253         if (usb_bus) {
 254             xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 255             acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 256             if (acecad_driver) {
 257                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 258                 devs = sysfs_get_driver_devices(acecad_driver);
 259                 if (devs) {
 260                     xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 261                     dlist_for_each_data(devs, candidate, struct sysfs_device) {
 262                         xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 263                         links = sysfs_open_link_list(candidate->path);
 264                         dlist_for_each_data(links, link, char) {
 265                             if (sscanf(link, "input:event%d", &i) == 1) {
 266                                 xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 267                                 break;
 268                             }
 269                         }
 270                         sysfs_close_list(links);
 271                         if (i > 0) /* We found something */
 272                             break;
 273                     }
 274                 } else
 275                     xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 276             } else
 277                 xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 278         } else
 279             xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 280         sysfs_close_bus(usb_bus);
 281         dlclose(libsysfs);
 282
 283         if (i > 0) {
 284             /* We found something */
 285             np = SET_EVENT_NUM(fname, i);
 286             if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 287                 xf86MsgVerb(X_WARNING, verb, "%s: unable to manage event device %d\n", local->name, i);
 288             } else {
 289                 goto ProbeFound;
 290             }
 291         } else
 292             xf86MsgVerb(X_WARNING, verb, "%s: no Acecad devices found via sysfs\n", local->name);
 293     } else
 294         xf86MsgVerb(X_WARNING, 4, "%s: libsysfs not found\n", local->name);
 295
 296 #endif
 297
 298     if (!ace_name)
 299         ace_name = ace_name_default;
 300
 301     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 302     for (i = 0; ; i++) {
 303         int fd = -1;
 304         Bool is_acecad;
 305
 306         np = SET_EVENT_NUM(fname, i);
 307         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 308             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 309             break;
 310         }
 311         SYSCALL(fd = open(fname, O_RDONLY));
 312         if (fd < 0) {
 313             if (errno == ENOENT) {
 314                 if (++noent_cnt >= max_skip)
 315                     break;
 316                 else
 317                     continue;
 318             } else {
 319                 continue;
 320             }
 321         }
 322         noent_cnt = 0;
 323         have_evdev = TRUE;
 324         is_acecad = fd_query_acecad(fd, ace_name);
 325         SYSCALL(close(fd));
 326         if (is_acecad) {
 327             goto ProbeFound;
 328         }
 329     }
 330     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 331             local->name, i + 1, ace_name);
 332     if (i <= max_skip)
 333         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 334                 local->name);
 335     if (i > max_skip && !have_evdev)
 336         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 337     return FALSE;
 338
 339 ProbeFound:
 340     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 341             local->name, fname);
 342     xf86ReplaceStrOption(local->options, "Device", fname);
 343     return TRUE;
 344 }
 345
 346 #endif
 347
 348 static InputInfoPtr
 349 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 350 {
 351     LocalDevicePtr local = xf86AllocateInput(drv, 0);
 352     AceCadPrivatePtr priv = xcalloc (1, sizeof(AceCadPrivateRec));
 353     int speed;
 354     int msgtype;
 355     char *s;
 356
 357     if ((!local) || (!priv))
 358         goto SetupProc_fail;
 359
 360     memset(priv, 0, sizeof(AceCadPrivateRec));
 361
 362     local->name = dev->identifier;
 363     local->type_name = XI_TABLET;
 364     local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
 365 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 366     local->motion_history_proc = xf86GetMotionEvents;
 367 #endif
 368     local->control_proc = NULL;
 369     local->close_proc = CloseProc;
 370     local->switch_mode = NULL;
 371     local->conversion_proc = ConvertProc;
 372     local->reverse_conversion_proc = ReverseConvertProc;
 373     local->dev = NULL;
 374     local->private = priv;
 375     local->private_flags = 0;
 376     local->conf_idev = dev;
 377     local->device_control = DeviceControl;
 378     /*local->always_core_feedback = 0;*/
 379
 380     xf86CollectInputOptions(local, default_options, NULL);
 381
 382     xf86OptionListReport(local->options);
 383
 384     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 385
 386     s = xf86FindOptionValue(local->options, "Device");
 387     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 388 #ifdef LINUX_INPUT
 389         priv->flags |= AUTODEV_FLAG;
 390         if (!AceCadAutoDevProbe(local, 0))
 391         {
 392             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 393             goto SetupProc_fail;
 394         }
 395 #else
 396         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 397         goto SetupProc_fail;
 398 #endif
 399     }
 400
 401     local->fd = xf86OpenSerial (local->options);
 402     if (local->fd == -1)
 403     {
 404         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 405         goto SetupProc_fail;
 406     }
 407     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 408
 409 #ifdef LINUX_INPUT
 410     if (IsUSBLine(local->fd)) {
 411         priv->flags |= USB_FLAG;
 412
 413         local->read_input = USBReadInput;
 414
 415         if (USBQueryHardware(local) != Success)
 416         {
 417             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 418             goto SetupProc_fail;
 419         }
 420     } else
 421 #endif
 422     {
 423         local->read_input = ReadInput;
 424
 425         msgtype = X_DEFAULT;
 426         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 427             msgtype = X_CONFIG;
 428             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 429         } else {
 430             speed = 85;
 431         }
 432
 433         switch (speed)
 434         {
 435             case 120:
 436                 priv->acecadReportSpeed = 'Q';
 437                 break;
 438             case 85:
 439                 priv->acecadReportSpeed = 'R';
 440                 break;
 441             case 10:
 442                 priv->acecadReportSpeed = 'S';
 443                 break;
 444             case 2:
 445                 priv->acecadReportSpeed = 'T';
 446                 break;
 447             default:
 448                 priv->acecadReportSpeed = 'R';
 449                 speed = 85;
 450                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 451                 msgtype = X_DEFAULT;
 452         }
 453
 454         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 455
 456         priv->buffer = XisbNew (local->fd, 200);
 457
 458         /*
 459          * Verify that hardware is attached and fuctional
 460          */
 461         if (QueryHardware(priv) != Success)
 462         {
 463             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 464             goto SetupProc_fail;
 465         }
 466     }
 467
 468     s = xf86FindOptionValue(local->options, "Mode");
 469     msgtype = s ? X_CONFIG : X_DEFAULT;
 470     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 471     {
 472         priv->flags |= ABSOLUTE_FLAG;
 473     }
 474
 475     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 476     DBG (9, XisbTrace (priv->buffer, 1));
 477
 478     local->history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 479
 480     xf86ProcessCommonOptions(local, local->options);
 481
 482     local->flags |= XI86_CONFIGURED;
 483
 484     if (local->fd != -1)
 485     {
 486         RemoveEnabledDevice (local->fd);
 487         if (priv->buffer)
 488         {
 489             XisbFree(priv->buffer);
 490             priv->buffer = NULL;
 491         }
 492         xf86CloseSerial(local->fd);
 493     }
 494     RemoveEnabledDevice (local->fd);
 495     local->fd = -1;
 496     return local;
 497
 498     /*
 499      * If something went wrong, cleanup and return NULL
 500      */
 501 SetupProc_fail:
 502     if ((local) && (local->fd))
 503         xf86CloseSerial (local->fd);
 504     if ((priv) && (priv->buffer))
 505         XisbFree (priv->buffer);
 506     if (priv) {
 507         xfree (priv);
 508         if (local)
 509                 local->private = NULL;
 510     }
 511     xf86DeleteInput(local, 0);
 512     return NULL;
 513 }
 514
 515 static Bool
 516 DeviceControl (DeviceIntPtr dev, int mode)
 517 {
 518     Bool RetValue;
 519
 520     switch (mode)
 521     {
 522         case DEVICE_INIT:
 523             DeviceInit(dev);
 524             RetValue = Success;
 525             break;
 526         case DEVICE_ON:
 527             RetValue = DeviceOn(dev);
 528             break;
 529         case DEVICE_OFF:
 530             RetValue = DeviceOff(dev);
 531             break;
 532         case DEVICE_CLOSE:
 533             RetValue = DeviceClose(dev);
 534             break;
 535         default:
 536             RetValue = BadValue;
 537     }
 538
 539     return RetValue;
 540 }
 541
 542 static Bool
 543 DeviceOn (DeviceIntPtr dev)
 544 {
 545     char buffer[256];
 546     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 547     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 548
 549     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 550
 551     local->fd = xf86OpenSerial(local->options);
 552     if (local->fd == -1)
 553     {
 554         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 555         priv->flags &= ~AVAIL_FLAG;
 556 #ifdef LINUX_INPUT
 557         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 558             local->fd = xf86OpenSerial(local->options);
 559         if (local->fd == -1)
 560 #endif
 561             return !Success;
 562     }
 563     priv->flags |= AVAIL_FLAG;
 564
 565
 566     if (!(priv->flags & USB_FLAG)) {
 567         priv->buffer = XisbNew(local->fd, 200);
 568         if (!priv->buffer)
 569         {
 570             xf86CloseSerial(local->fd);
 571             local->fd = -1;
 572             return !Success;
 573         }
 574
 575         /* Rets qu'a l'envoyer a la tablette */
 576         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 577         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 578     }
 579
 580     xf86FlushInput(local->fd);
 581     xf86AddEnabledDevice (local);
 582     dev->public.on = TRUE;
 583     return Success;
 584 }
 585
 586 static Bool
 587 DeviceOff (DeviceIntPtr dev)
 588 {
 589     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 590     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 591
 592     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 593
 594     if (local->fd != -1)
 595     {
 596         RemoveEnabledDevice (local->fd);
 597         if (priv->buffer)
 598         {
 599             XisbFree(priv->buffer);
 600             priv->buffer = NULL;
 601         }
 602         xf86CloseSerial(local->fd);
 603     }
 604
 605
 606     xf86RemoveEnabledDevice (local);
 607     dev->public.on = FALSE;
 608     return Success;
 609 }
 610
 611 static Bool
 612 DeviceClose (DeviceIntPtr dev)
 613 {
 614     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 615
 616     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 617
 618     return Success;
 619 }
 620
 621 static void
 622 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 623 {
 624     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 625
 626     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 627 }
 628
 629 static Bool
 630 DeviceInit (DeviceIntPtr dev)
 631 {
 632     int rx, ry;
 633     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 634     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 635     unsigned char map[] =
 636     {0, 1, 2, 3};
 637
 638     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 639
 640     /* 3 boutons */
 641     if (InitButtonClassDeviceStruct (dev, 3, map) == FALSE)
 642     {
 643         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 644         return !Success;
 645     }
 646
 647     if (InitFocusClassDeviceStruct (dev) == FALSE)
 648     {
 649         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 650         return !Success;
 651     }
 652
 653     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 654         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 655         return !Success;
 656     }
 657
 658
 659     /* 3 axes */
 660     if (InitValuatorClassDeviceStruct (dev, 3, xf86GetMotionEvents,
 661                 local->history_size,
 662                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 663             == FALSE)
 664     {
 665         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 666         return !Success;
 667     }
 668     else
 669     {
 670
 671         InitValuatorAxisStruct(dev,
 672                 0,
 673                 0,                      /* min val */
 674 #if XORG_BOTCHED_INPUT
 675                 screenInfo.screens[0]->width,
 676 #else
 677                 priv->acecadMaxX,       /* max val */
 678 #endif
 679                 1000,                   /* resolution */
 680                 0,                      /* min_res */
 681                 1000);                  /* max_res */
 682         InitValuatorAxisStruct(dev,
 683                 1,
 684                 0,                      /* min val */
 685 #if XORG_BOTCHED_INPUT
 686                 screenInfo.screens[0]->height,
 687 #else
 688                 priv->acecadMaxY,       /* max val */
 689 #endif
 690                 1000,                   /* resolution */
 691                 0,                      /* min_res */
 692                 1000);                  /* max_res */
 693         InitValuatorAxisStruct(dev,
 694                 2,
 695                 0,                      /* min val */
 696                 priv->acecadMaxZ,       /* max val */
 697                 1000,                   /* resolution */
 698                 0,                      /* min_res */
 699                 1000);          /* max_res */
 700
 701     }
 702
 703     if (InitProximityClassDeviceStruct (dev) == FALSE)
 704     {
 705         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 706         return !Success;
 707     }
 708
 709     xf86MotionHistoryAllocate (local);
 710
 711
 712     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 713        connaitre la taille... */
 714
 715     if (priv->acecadInc > 95)
 716         priv->acecadInc = 95;
 717     if (priv->acecadInc < 1)
 718     {
 719         /* guess the best increment value given video mode */
 720         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 721         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 722         if (rx < ry)
 723             priv->acecadInc = rx;
 724         else
 725             priv->acecadInc = ry;
 726         if (priv->acecadInc < 1)
 727             priv->acecadInc = 1;
 728     }
 729
 730     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 731
 732     return Success;
 733 }
 734
 735 static void
 736 ReadInput (LocalDevicePtr local)
 737 {
 738     int x, y, z;
 739     int prox, buttons;
 740     int is_core_pointer = 0, is_absolute;
 741     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 742
 743     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 744
 745     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 746 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 747     is_core_pointer = xf86IsCorePointer(local->dev);
 748 #endif
 749
 750     /*
 751      * set blocking to -1 on the first call because we know there is data to
 752      * read. Xisb automatically clears it after one successful read so that
 753      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 754      * read from blocking indefinately.
 755      */
 756     XisbBlockDuration (priv->buffer, -1);
 757
 758     while (AceCadGetPacket (priv) == Success)
 759     {
 760         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 761         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 762
 763         if (!(priv->flags & ABSOLUTE_FLAG))
 764         {
 765             x = priv->packet[0] & XSIGN_BIT? x:-x;
 766             y = priv->packet[0] & YSIGN_BIT? y:-y;
 767         }
 768         else
 769         {
 770             y = priv->acecadMaxY - y ;
 771         }
 772
 773
 774         z = ((int)priv->packet[5] << 2) |
 775             (((int)priv->packet[6] & 0x01) << 1) |
 776             (((int)priv->packet[6] & 0x10) >> 4);
 777
 778         buttons = ((int)priv->packet[0] & 0x07) |
 779             ((int)priv->packet[6] & 0x02 << 2);
 780
 781         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 782
 783         if (prox)
 784         {
 785             if (!(priv->acecadOldProximity))
 786                 if (!is_core_pointer)
 787                 {
 788                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 789                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 790                 }
 791
 792             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 793                     || (!is_absolute && (x || y)))
 794             {
 795                 if (is_absolute || priv->acecadOldProximity)
 796                 {
 797                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 798                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 799                 }
 800             }
 801
 802             if (priv->acecadOldButtons != buttons)
 803             {
 804                 int delta = buttons ^ priv->acecadOldButtons;
 805                 while (delta)
 806                 {
 807                     int id = ffs(delta);
 808                     delta &= ~(1 << (id-1));
 809
 810                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 811                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 812                 }
 813             }
 814
 815             priv->acecadOldButtons = buttons;
 816             priv->acecadOldX = x;
 817             priv->acecadOldY = y;
 818             priv->acecadOldZ = z;
 819             priv->acecadOldProximity = prox;
 820         }
 821         else
 822         {
 823             if (!is_core_pointer)
 824                 if (priv->acecadOldProximity)
 825                 {
 826                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 827                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 828                 }
 829             priv->acecadOldProximity = 0;
 830         }
 831     }
 832     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 833 }
 834
 835 #ifdef LINUX_INPUT
 836 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 837 static void
 838 USBReadInput (LocalDevicePtr local)
 839 {
 840     int len;
 841     struct input_event * event;
 842     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 843     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 844     int x = priv->acecadOldX;
 845     int y = priv->acecadOldY;
 846     int z = priv->acecadOldZ;
 847     int report_x, report_y;
 848     int prox = priv->acecadOldProximity;
 849     int buttons = priv->acecadOldButtons;
 850     int is_core_pointer = 0;
 851 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 852     is_core_pointer = xf86IsCorePointer(local->dev);
 853 #endif
 854     /* Is autodev active? */
 855     int autodev = priv->flags & AUTODEV_FLAG;
 856     /* Was the device available last time we checked? */
 857     int avail = priv->flags & AVAIL_FLAG;
 858
 859     SYSCALL(len = read(local->fd, eventbuf, sizeof(eventbuf)));
 860
 861     if (len <= 0) {
 862         if (avail) {
 863             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 864         }
 865         if (NOTAVAIL) {
 866             priv->flags &= ~AVAIL_FLAG;
 867             if(autodev) {
 868                 if (AceCadAutoDevProbe(local, 4)) {
 869                     DeviceOff(local->dev);
 870                     DeviceOn(local->dev);
 871                 }
 872             }
 873         }
 874         return;
 875     } else {
 876         if (!avail) {
 877             /* If the device wasn't available last time we checked */
 878             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 879             priv->flags |= AVAIL_FLAG;
 880         }
 881     }
 882
 883     for (event = (struct input_event *)eventbuf;
 884             event < (struct input_event *)(eventbuf+len); event++) {
 885
 886         switch (event->type) {
 887             case EV_SYN: /* 2.6.x */
 888                 if (event->code != SYN_REPORT)
 889                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 890                 break;
 891             case EV_ABS:
 892                 switch (event->code) {
 893                     case ABS_X:
 894                         x = event->value;
 895                         break;
 896
 897                     case ABS_Y:
 898                         y = event->value;
 899                         break;
 900
 901                     case ABS_PRESSURE:
 902                         z = event->value;
 903                         break;
 904
 905                     case ABS_MISC:
 906                         break;
 907
 908                 }
 909                 break; /* EV_ABS */
 910
 911             case EV_KEY:
 912                 switch (event->code) {
 913                     case BTN_TOOL_PEN:
 914                         prox = event->value;
 915                         break;
 916
 917                     case BTN_TOUCH:
 918                         buttons = set_bit(buttons,0,event->value);
 919                         break;
 920
 921                     case BTN_STYLUS:
 922                         buttons = set_bit(buttons,1,event->value);
 923                         break;
 924
 925                     case BTN_STYLUS2:
 926                         buttons = set_bit(buttons,2,event->value);
 927                         break;
 928                 }
 929                 break; /* EV_KEY */
 930             default:
 931                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 932         } /* switch event->type */
 933
 934         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 935          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 936          */
 937         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 938                     (event->type == EV_ABS && event->code == ABS_MISC)
 939              )) {
 940             continue;
 941         }
 942
 943         if (prox)
 944         {
 945 #if XORG_BOTCHED_INPUT
 946             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 947 #else
 948             report_x = x;
 949             report_y = y;
 950 #endif
 951             if (!(priv->acecadOldProximity))
 952                 if (!is_core_pointer)
 953                 {
 954                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 955                 }
 956
 957
 958             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 959
 960             if (priv->acecadOldButtons != buttons)
 961             {
 962                 int delta = buttons ^ priv->acecadOldButtons;
 963                 while (delta)
 964                 {
 965                     int id = ffs(delta);
 966                     delta &= ~(1 << (id-1));
 967
 968                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
 969                 }
 970             }
 971         }
 972         else
 973         {
 974             if (!is_core_pointer)
 975                 if (priv->acecadOldProximity)
 976                 {
 977                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
 978                 }
 979             priv->acecadOldProximity = 0;
 980         }
 981
 982         priv->acecadOldButtons = buttons;
 983         priv->acecadOldX = x;
 984         priv->acecadOldY = y;
 985         priv->acecadOldZ = z;
 986         priv->acecadOldProximity = prox;
 987     }
 988     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 989 }
 990 #endif
 991
 992 static void
 993 CloseProc (LocalDevicePtr local)
 994 {
 995 }
 996
 997 /*
 998  * The ConvertProc function may need to be tailored for your device.
 999  * This function converts the device's valuator outputs to x and y coordinates
1000  * to simulate mouse events.
1001  */
1002 static Bool
1003 ConvertProc (LocalDevicePtr local, int first, int num,
1004         int v0, int v1, int v2, int v3, int v4, int v5,
1005         int *x, int *y)
1006 {
1007     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1008
1009     /* TODO: should have a structure to hold which screen the
1010      * pointer is attached to? */
1011     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1012     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1013     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1014     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1015     return TRUE;
1016 }
1017
1018
1019 static Bool
1020 ReverseConvertProc (LocalDevicePtr local,
1021         int x, int  y,
1022         int *valuators)
1023 {
1024     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1025
1026     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
1027     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1028     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1029     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
1030
1031     return TRUE;
1032 }
1033
1034
1035 #define WriteString(str)\
1036     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1037
1038
1039 static Bool
1040 QueryHardware (AceCadPrivatePtr priv)
1041 {
1042
1043     /* Reset */
1044     WriteString("z0");
1045
1046     /* Wait */
1047     milisleep (250);
1048
1049     /* Prompt Mode in order to not be disturbed */
1050     WriteString(ACECAD_PROMPT_MODE);
1051
1052     /* Flush */
1053     while (XisbRead(priv->buffer) >= 0);
1054
1055     /* Ask for Config packet*/
1056     WriteString(ACECAD_CONFIG);
1057
1058     /* Read the packet */
1059     XisbBlockDuration (priv->buffer, 1000000);
1060     NewPacket (priv);
1061
1062     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1063
1064     if ((AceCadGetPacket (priv) == Success))
1065     {
1066         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1067         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1068         priv->acecadMaxZ = 512;
1069         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1070     }
1071     else
1072         return !Success;
1073
1074     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1075     return Success;
1076 }
1077
1078 #define BITS_PER_LONG (sizeof(long) * 8)
1079 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1080 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1081 #define OFF(x)  ((x)%BITS_PER_LONG)
1082 #define LONG(x) ((x)/BITS_PER_LONG)
1083
1084 #ifdef LINUX_INPUT
1085 static Bool
1086 USBQueryHardware (LocalDevicePtr local)
1087 {
1088     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1089     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1090     int                 i, j;
1091     int                 abs[5];
1092     char                name[256] = "Unknown";
1093
1094     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1095     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1096
1097     memset(bit, 0, sizeof(bit));
1098     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1099
1100     for (i = 0; i < EV_MAX; i++)
1101         if (test_bit(i, bit[0])) {
1102             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1103             for (j = 0; j < KEY_MAX; j++)
1104                 if (test_bit(j, bit[i])) {
1105                     if (i == EV_ABS) {
1106                         ioctl(local->fd, EVIOCGABS(j), abs);
1107                         switch (j) {
1108                             case ABS_X:
1109                                 priv->acecadMaxX = abs[2];
1110                                 break;
1111
1112                             case ABS_Y:
1113                                 priv->acecadMaxY = abs[2];
1114                                 break;
1115
1116                             case ABS_PRESSURE:
1117                                 priv->acecadMaxZ = abs[2];
1118                                 break;
1119                         }
1120                     }
1121                 }
1122         }
1123
1124     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1125     return Success;
1126 }
1127 #endif
1128
1129 static void
1130 NewPacket (AceCadPrivatePtr priv)
1131 {
1132     priv->packeti = 0;
1133 }
1134
1135 static Bool
1136 AceCadGetPacket (AceCadPrivatePtr priv)
1137 {
1138     int count = 0;
1139     int c = 0;
1140
1141     while((c = XisbRead(priv->buffer)) >= 0 )
1142     {
1143
1144         /*
1145          * fail after 500 bytes so the server doesn't hang forever if a
1146          * device sends bad data.
1147          */
1148         if (count++ > 500)
1149         {
1150             NewPacket (priv);
1151             return !Success;
1152         }
1153
1154         if (c & PHASING_BIT)
1155         {
1156             NewPacket(priv);
1157
1158             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1159             XisbBlockDuration (priv->buffer, 10000);
1160             priv->packet[priv->packeti++] = c;
1161             count = ACECAD_PACKET_SIZE - 1;
1162             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1163             {
1164                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1165                 priv->packet[priv->packeti++] = c;
1166             }
1167             XisbBlockDuration (priv->buffer, 0);
1168             if(c > 0)
1169                 return Success;
1170         }
1171     }
1172     return !Success;
1173 }