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