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

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