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     local->private = priv;
 347
 348     local->device_control = DeviceControl;
 349     local->type_name = XI_TABLET;
 350
 351     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 352
 353     s = xf86FindOptionValue(local->options, "Device");
 354     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 355 #ifdef HAVE_LINUX_INPUT_H
 356         priv->flags |= AUTODEV_FLAG;
 357         if (!AceCadAutoDevProbe(local, 0))
 358         {
 359             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 360             goto SetupProc_fail;
 361         }
 362 #else
 363         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 364         goto SetupProc_fail;
 365 #endif
 366     }
 367
 368     local->fd = xf86OpenSerial (local->options);
 369     if (local->fd == -1)
 370     {
 371         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 372         goto SetupProc_fail;
 373     }
 374     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 375
 376 #ifdef HAVE_LINUX_INPUT_H
 377     if (IsUSBLine(local->fd)) {
 378         priv->flags |= USB_FLAG;
 379
 380         local->read_input = USBReadInput;
 381
 382         if (USBQueryHardware(local) != Success)
 383         {
 384             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 385             goto SetupProc_fail;
 386         }
 387     } else
 388 #endif
 389     {
 390         local->read_input = ReadInput;
 391
 392         msgtype = X_DEFAULT;
 393         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 394             msgtype = X_CONFIG;
 395             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 396         } else {
 397             speed = 85;
 398         }
 399
 400         switch (speed)
 401         {
 402             case 120:
 403                 priv->acecadReportSpeed = 'Q';
 404                 break;
 405             case 85:
 406                 priv->acecadReportSpeed = 'R';
 407                 break;
 408             case 10:
 409                 priv->acecadReportSpeed = 'S';
 410                 break;
 411             case 2:
 412                 priv->acecadReportSpeed = 'T';
 413                 break;
 414             default:
 415                 priv->acecadReportSpeed = 'R';
 416                 speed = 85;
 417                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 418                 msgtype = X_DEFAULT;
 419         }
 420
 421         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 422
 423         priv->buffer = XisbNew (local->fd, 200);
 424
 425         /*
 426          * Verify that hardware is attached and fuctional
 427          */
 428         if (QueryHardware(priv) != Success)
 429         {
 430             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 431             goto SetupProc_fail;
 432         }
 433     }
 434
 435     s = xf86FindOptionValue(local->options, "Mode");
 436     msgtype = s ? X_CONFIG : X_DEFAULT;
 437     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 438     {
 439         priv->flags |= ABSOLUTE_FLAG;
 440     }
 441
 442     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 443     DBG (9, XisbTrace (priv->buffer, 1));
 444
 445     xf86ProcessCommonOptions(local, local->options);
 446
 447     if (local->fd != -1)
 448     {
 449         RemoveEnabledDevice (local->fd);
 450         if (priv->buffer)
 451         {
 452             XisbFree(priv->buffer);
 453             priv->buffer = NULL;
 454         }
 455         xf86CloseSerial(local->fd);
 456     }
 457     RemoveEnabledDevice (local->fd);
 458     local->fd = -1;
 459     return Success;
 460
 461     /*
 462      * If something went wrong, cleanup and return NULL
 463      */
 464 SetupProc_fail:
 465     if ((local) && (local->fd))
 466         xf86CloseSerial (local->fd);
 467     if ((priv) && (priv->buffer))
 468         XisbFree (priv->buffer);
 469     if (priv) {
 470         free (priv);
 471         if (local)
 472                 local->private = NULL;
 473     }
 474     return BadAlloc;
 475 }
 476
 477 static Bool
 478 DeviceControl (DeviceIntPtr dev, int mode)
 479 {
 480     Bool RetValue;
 481
 482     switch (mode)
 483     {
 484         case DEVICE_INIT:
 485             DeviceInit(dev);
 486             RetValue = Success;
 487             break;
 488         case DEVICE_ON:
 489             RetValue = DeviceOn(dev);
 490             break;
 491         case DEVICE_OFF:
 492             RetValue = DeviceOff(dev);
 493             break;
 494         case DEVICE_CLOSE:
 495             RetValue = DeviceClose(dev);
 496             break;
 497         default:
 498             RetValue = BadValue;
 499     }
 500
 501     return RetValue;
 502 }
 503
 504 static Bool
 505 DeviceOn (DeviceIntPtr dev)
 506 {
 507     char buffer[256];
 508     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 509     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 510
 511     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 512
 513     local->fd = xf86OpenSerial(local->options);
 514     if (local->fd == -1)
 515     {
 516         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 517         priv->flags &= ~AVAIL_FLAG;
 518 #ifdef HAVE_LINUX_INPUT_H
 519         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 520             local->fd = xf86OpenSerial(local->options);
 521         if (local->fd == -1)
 522 #endif
 523             return !Success;
 524     }
 525     priv->flags |= AVAIL_FLAG;
 526
 527
 528     if (!(priv->flags & USB_FLAG)) {
 529         priv->buffer = XisbNew(local->fd, 200);
 530         if (!priv->buffer)
 531         {
 532             xf86CloseSerial(local->fd);
 533             local->fd = -1;
 534             return !Success;
 535         }
 536
 537         /* Rets qu'a l'envoyer a la tablette */
 538         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 539         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 540     }
 541
 542     xf86FlushInput(local->fd);
 543     xf86AddEnabledDevice (local);
 544     dev->public.on = TRUE;
 545     return Success;
 546 }
 547
 548 static Bool
 549 DeviceOff (DeviceIntPtr dev)
 550 {
 551     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 552     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 553
 554     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 555
 556     if (local->fd != -1)
 557     {
 558         RemoveEnabledDevice (local->fd);
 559         if (priv->buffer)
 560         {
 561             XisbFree(priv->buffer);
 562             priv->buffer = NULL;
 563         }
 564         xf86CloseSerial(local->fd);
 565     }
 566
 567
 568     xf86RemoveEnabledDevice (local);
 569     dev->public.on = FALSE;
 570     return Success;
 571 }
 572
 573 static Bool
 574 DeviceClose (DeviceIntPtr dev)
 575 {
 576     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 577
 578     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 579
 580     return Success;
 581 }
 582
 583 static void
 584 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 585 {
 586     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 587
 588     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 589 }
 590
 591 static Bool
 592 DeviceInit (DeviceIntPtr dev)
 593 {
 594     int rx, ry;
 595     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 596     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 597     unsigned char map[] = {0, 1, 2, 3};
 598     int history_size;
 599     Atom btn_labels[3];
 600     Atom axes_labels[3];
 601
 602     btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
 603     btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
 604     btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
 605
 606     if ((priv->flags & ABSOLUTE_FLAG))
 607     {
 608         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
 609         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
 610         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_PRESSURE);
 611     } else
 612     {
 613         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
 614         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
 615         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Z);
 616     }
 617
 618     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 619
 620     /* 3 boutons */
 621     if (InitButtonClassDeviceStruct (dev, 3,
 622                 btn_labels,
 623                 map) == FALSE)
 624     {
 625         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 626         return !Success;
 627     }
 628
 629     if (InitFocusClassDeviceStruct (dev) == FALSE)
 630     {
 631         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 632         return !Success;
 633     }
 634
 635     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 636         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 637         return !Success;
 638     }
 639
 640     history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 641
 642     /* 3 axes */
 643     if (InitValuatorClassDeviceStruct (dev, 3,
 644                 axes_labels,
 645                 history_size,
 646                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 647             == FALSE)
 648     {
 649         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 650         return !Success;
 651     }
 652     else
 653     {
 654
 655         InitValuatorAxisStruct(dev,
 656                 0,
 657                 axes_labels[0],
 658                 0,                      /* min val */
 659 #if XORG_BOTCHED_INPUT
 660                 screenInfo.screens[0]->width,
 661 #else
 662                 priv->acecadMaxX,       /* max val */
 663 #endif
 664                 1000,                   /* resolution */
 665                 0,                      /* min_res */
 666                 1000                    /* max_res */
 667                 , Absolute
 668                 );
 669         InitValuatorAxisStruct(dev,
 670                 1,
 671                 axes_labels[1],
 672                 0,                      /* min val */
 673 #if XORG_BOTCHED_INPUT
 674                 screenInfo.screens[0]->height,
 675 #else
 676                 priv->acecadMaxY,       /* max val */
 677 #endif
 678                 1000,                   /* resolution */
 679                 0,                      /* min_res */
 680                 1000                    /* max_res */
 681                 , Absolute
 682                 );
 683         InitValuatorAxisStruct(dev,
 684                 2,
 685                 axes_labels[2],
 686                 0,                      /* min val */
 687                 priv->acecadMaxZ,       /* max val */
 688                 1000,                   /* resolution */
 689                 0,                      /* min_res */
 690                 1000            /* max_res */
 691                 , Absolute
 692                 );
 693
 694     }
 695
 696     if (InitProximityClassDeviceStruct (dev) == FALSE)
 697     {
 698         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 699         return !Success;
 700     }
 701
 702     xf86MotionHistoryAllocate (local);
 703
 704
 705     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 706        connaitre la taille... */
 707
 708     if (priv->acecadInc > 95)
 709         priv->acecadInc = 95;
 710     if (priv->acecadInc < 1)
 711     {
 712         /* guess the best increment value given video mode */
 713         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 714         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 715         if (rx < ry)
 716             priv->acecadInc = rx;
 717         else
 718             priv->acecadInc = ry;
 719         if (priv->acecadInc < 1)
 720             priv->acecadInc = 1;
 721     }
 722
 723     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 724
 725     return Success;
 726 }
 727
 728 static void
 729 ReadInput (InputInfoPtr local)
 730 {
 731     int x, y, z;
 732     int prox, buttons;
 733     int is_absolute;
 734     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 735
 736     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 737
 738     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 739
 740     /*
 741      * set blocking to -1 on the first call because we know there is data to
 742      * read. Xisb automatically clears it after one successful read so that
 743      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 744      * read from blocking indefinately.
 745      */
 746     XisbBlockDuration (priv->buffer, -1);
 747
 748     while (AceCadGetPacket (priv) == Success)
 749     {
 750         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 751         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 752
 753         if (!(priv->flags & ABSOLUTE_FLAG))
 754         {
 755             x = priv->packet[0] & XSIGN_BIT? x:-x;
 756             y = priv->packet[0] & YSIGN_BIT? y:-y;
 757         }
 758         else
 759         {
 760             y = priv->acecadMaxY - y ;
 761         }
 762
 763
 764         z = ((int)priv->packet[5] << 2) |
 765             (((int)priv->packet[6] & 0x01) << 1) |
 766             (((int)priv->packet[6] & 0x10) >> 4);
 767
 768         buttons = ((int)priv->packet[0] & 0x07) |
 769             ((int)priv->packet[6] & 0x02 << 2);
 770
 771         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 772
 773         if (prox)
 774         {
 775             if (!(priv->acecadOldProximity))
 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 (priv->acecadOldProximity)
 813             {
 814                 /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 815                 xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 816             }
 817             priv->acecadOldProximity = 0;
 818         }
 819     }
 820     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 821 }
 822
 823 #ifdef HAVE_LINUX_INPUT_H
 824 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 825 static void
 826 USBReadInput (InputInfoPtr local)
 827 {
 828     int len;
 829     struct input_event * event;
 830     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 831     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 832     int x = priv->acecadOldX;
 833     int y = priv->acecadOldY;
 834     int z = priv->acecadOldZ;
 835     int report_x = 0, report_y = 0;
 836     int prox = priv->acecadOldProximity;
 837     int buttons = priv->acecadOldButtons;
 838     /* Is autodev active? */
 839     int autodev = priv->flags & AUTODEV_FLAG;
 840     /* Was the device available last time we checked? */
 841     int avail = priv->flags & AVAIL_FLAG;
 842
 843     SYSCALL(len = xf86ReadSerial(local->fd, eventbuf, sizeof(eventbuf)));
 844
 845     if (len <= 0) {
 846         if (avail) {
 847             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 848         }
 849         if (NOTAVAIL) {
 850             priv->flags &= ~AVAIL_FLAG;
 851             if(autodev) {
 852                 if (AceCadAutoDevProbe(local, 4)) {
 853                     DeviceOff(local->dev);
 854                     DeviceOn(local->dev);
 855                 }
 856             }
 857         }
 858         return;
 859     } else {
 860         if (!avail) {
 861             /* If the device wasn't available last time we checked */
 862             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 863             priv->flags |= AVAIL_FLAG;
 864         }
 865     }
 866
 867     for (event = (struct input_event *)eventbuf;
 868             event < (struct input_event *)(eventbuf+len); event++) {
 869
 870         switch (event->type) {
 871             case EV_SYN: /* 2.6.x */
 872                 if (event->code != SYN_REPORT)
 873                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 874                 break;
 875             case EV_ABS:
 876                 switch (event->code) {
 877                     case ABS_X:
 878                         x = event->value;
 879                         break;
 880
 881                     case ABS_Y:
 882                         y = event->value;
 883                         break;
 884
 885                     case ABS_PRESSURE:
 886                         z = event->value;
 887                         break;
 888
 889                     case ABS_MISC:
 890                         break;
 891
 892                 }
 893                 break; /* EV_ABS */
 894
 895             case EV_KEY:
 896                 switch (event->code) {
 897                     case BTN_TOOL_PEN:
 898                         prox = event->value;
 899                         break;
 900
 901                     case BTN_TOUCH:
 902                         buttons = set_bit(buttons,0,event->value);
 903                         break;
 904
 905                     case BTN_STYLUS:
 906                         buttons = set_bit(buttons,1,event->value);
 907                         break;
 908
 909                     case BTN_STYLUS2:
 910                         buttons = set_bit(buttons,2,event->value);
 911                         break;
 912                 }
 913                 break; /* EV_KEY */
 914             default:
 915                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 916         } /* switch event->type */
 917
 918         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 919          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 920          */
 921         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 922                     (event->type == EV_ABS && event->code == ABS_MISC)
 923              )) {
 924             continue;
 925         }
 926
 927         if (prox)
 928         {
 929 #if XORG_BOTCHED_INPUT
 930             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 931 #else
 932             report_x = x;
 933             report_y = y;
 934 #endif
 935             if (!(priv->acecadOldProximity))
 936             {
 937                 xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 938             }
 939
 940
 941             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 942
 943             if (priv->acecadOldButtons != buttons)
 944             {
 945                 int delta = buttons ^ priv->acecadOldButtons;
 946                 while (delta)
 947                 {
 948                     int id = ffs(delta);
 949                     delta &= ~(1 << (id-1));
 950
 951                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
 952                 }
 953             }
 954         }
 955         else
 956         {
 957             if (priv->acecadOldProximity)
 958             {
 959                 xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
 960             }
 961             priv->acecadOldProximity = 0;
 962         }
 963
 964         priv->acecadOldButtons = buttons;
 965         priv->acecadOldX = x;
 966         priv->acecadOldY = y;
 967         priv->acecadOldZ = z;
 968         priv->acecadOldProximity = prox;
 969     }
 970     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 971 }
 972 #endif
 973
 974 /*
 975  * The ConvertProc function may need to be tailored for your device.
 976  * This function converts the device's valuator outputs to x and y coordinates
 977  * to simulate mouse events.
 978  */
 979 static Bool
 980 ConvertProc (InputInfoPtr local, int first, int num,
 981         int v0, int v1, int v2, int v3, int v4, int v5,
 982         int *x, int *y)
 983 {
 984     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
 985
 986     /* TODO: should have a structure to hold which screen the
 987      * pointer is attached to? */
 988     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
 989     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
 990     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
 991     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
 992     return TRUE;
 993 }
 994
 995
 996 #define WriteString(str)\
 997     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
 998
 999
1000 static Bool
1001 QueryHardware (AceCadPrivatePtr priv)
1002 {
1003
1004     /* Reset */
1005     WriteString("z0");
1006
1007     /* Wait */
1008     milisleep (250);
1009
1010     /* Prompt Mode in order to not be disturbed */
1011     WriteString(ACECAD_PROMPT_MODE);
1012
1013     /* Flush */
1014     while (XisbRead(priv->buffer) >= 0);
1015
1016     /* Ask for Config packet*/
1017     WriteString(ACECAD_CONFIG);
1018
1019     /* Read the packet */
1020     XisbBlockDuration (priv->buffer, 1000000);
1021     NewPacket (priv);
1022
1023     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1024
1025     if ((AceCadGetPacket (priv) == Success))
1026     {
1027         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1028         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1029         priv->acecadMaxZ = 512;
1030         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1031     }
1032     else
1033         return !Success;
1034
1035     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1036     return Success;
1037 }
1038
1039 #define BITS_PER_LONG (sizeof(long) * 8)
1040 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1041 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1042 #define OFF(x)  ((x)%BITS_PER_LONG)
1043 #define LONG(x) ((x)/BITS_PER_LONG)
1044
1045 #ifdef HAVE_LINUX_INPUT_H
1046 static Bool
1047 USBQueryHardware (InputInfoPtr local)
1048 {
1049     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1050     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1051     int                 i, j;
1052     int                 abs[5];
1053     char                name[256] = "Unknown";
1054
1055     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1056     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1057
1058     memset(bit, 0, sizeof(bit));
1059     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1060
1061     for (i = 0; i < EV_MAX; i++)
1062         if (test_bit(i, bit[0])) {
1063             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1064             for (j = 0; j < KEY_MAX; j++)
1065                 if (test_bit(j, bit[i])) {
1066                     if (i == EV_ABS) {
1067                         ioctl(local->fd, EVIOCGABS(j), abs);
1068                         switch (j) {
1069                             case ABS_X:
1070                                 priv->acecadMaxX = abs[2];
1071                                 break;
1072
1073                             case ABS_Y:
1074                                 priv->acecadMaxY = abs[2];
1075                                 break;
1076
1077                             case ABS_PRESSURE:
1078                                 priv->acecadMaxZ = abs[2];
1079                                 break;
1080                         }
1081                     }
1082                 }
1083         }
1084
1085     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1086     return Success;
1087 }
1088 #endif
1089
1090 static void
1091 NewPacket (AceCadPrivatePtr priv)
1092 {
1093     priv->packeti = 0;
1094 }
1095
1096 static Bool
1097 AceCadGetPacket (AceCadPrivatePtr priv)
1098 {
1099     int count = 0;
1100     int c = 0;
1101
1102     while((c = XisbRead(priv->buffer)) >= 0 )
1103     {
1104
1105         /*
1106          * fail after 500 bytes so the server doesn't hang forever if a
1107          * device sends bad data.
1108          */
1109         if (count++ > 500)
1110         {
1111             NewPacket (priv);
1112             return !Success;
1113         }
1114
1115         if (c & PHASING_BIT)
1116         {
1117             NewPacket(priv);
1118
1119             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1120             XisbBlockDuration (priv->buffer, 10000);
1121             priv->packet[priv->packeti++] = c;
1122             count = ACECAD_PACKET_SIZE - 1;
1123             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1124             {
1125                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1126                 priv->packet[priv->packeti++] = c;
1127             }
1128             XisbBlockDuration (priv->buffer, 0);
1129             if(c > 0)
1130                 return Success;
1131         }
1132     }
1133     return !Success;
1134 }