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

   1 /*
   2  * Copyright (c) 2001 Edouard TISSERANT <tissered@esstin.u-nancy.fr>
   3  * Parts inspired from Shane Watts <shane@bofh.asn.au> XFree86 3 Acecad Driver
   4  * Thanks to Emily, from AceCad, For giving me documents.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  20  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  21  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  *
  25  */
  26 /* $XFree86: xc/programs/Xserver/hw/xfree86/input/acecad/acecad.c,v 1.4 2003/10/30 00:40:45 dawes Exp $ */
  27
  28 #include "config.h"
  29
  30 #include <xorgVersion.h>
  31 #define XORG_VERSION_BOTCHED XORG_VERSION_NUMERIC(1,4,0,0,0)
  32 #if XORG_VERSION_CURRENT >= XORG_VERSION_BOTCHED
  33 #define XORG_BOTCHED_INPUT 1
  34 #else
  35 #define XORG_BOTCHED_INPUT 0
  36 #endif
  37
  38 /*****************************************************************************
  39  *      Standard Headers
  40  ****************************************************************************/
  41
  42 #ifdef LINUX_INPUT
  43 #include <asm/types.h>
  44 #include <linux/input.h>
  45 #ifndef EV_SYN
  46 #define EV_SYN EV_RST
  47 #define SYN_REPORT 0
  48 #endif
  49 #ifdef BUS_PCI
  50 #undef BUS_PCI
  51 #endif
  52 #ifdef BUS_ISA
  53 #undef BUS_ISA
  54 #endif
  55 #endif
  56
  57 #include <misc.h>
  58 #include <xf86.h>
  59 #ifndef NEED_XF86_TYPES
  60 #define NEED_XF86_TYPES
  61 #endif
  62 #include <xf86_OSproc.h>
  63 #include <xisb.h>
  64 #include <xf86Xinput.h>
  65 #include <exevents.h>
  66 #include <xf86Module.h>
  67
  68 #include <string.h>
  69 #include <stdio.h>
  70
  71 #include <errno.h>
  72 #ifdef LINUX_INPUT
  73 #include <fcntl.h>
  74 #ifdef LINUX_SYSFS
  75 #include <sysfs/libsysfs.h>
  76 #include <dlfcn.h>
  77 #endif
  78 #endif
  79
  80 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
  81 #include <X11/Xatom.h>
  82 #include <xserver-properties.h>
  83 #endif
  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 /*****************************************************************************
  92  *      Local Headers
  93  ****************************************************************************/
  94 #include "acecad.h"
  95
  96 /*****************************************************************************
  97  *      Variables without includable headers
  98  ****************************************************************************/
  99
 100 /*****************************************************************************
 101  *      Local Variables
 102  ****************************************************************************/
 103
 104 #undef read
 105 #define read(a,b,c) xf86ReadSerial((a),(b),(c))
 106
 107 /* max number of input events to read in one read call */
 108 #define MAX_EVENTS 50
 109
 110 _X_EXPORT InputDriverRec ACECAD =
 111 {
 112         1,
 113         "acecad",
 114         NULL,
 115         AceCadPreInit,
 116         NULL,
 117         NULL,
 118         0
 119 };
 120
 121 #ifdef XFree86LOADER
 122 static XF86ModuleVersionInfo VersionRec =
 123 {
 124         "acecad",
 125         MODULEVENDORSTRING,
 126         MODINFOSTRING1,
 127         MODINFOSTRING2,
 128         XORG_VERSION_CURRENT,
 129         PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
 130         ABI_CLASS_XINPUT,
 131         ABI_XINPUT_VERSION,
 132         MOD_CLASS_XINPUT,
 133         {0, 0, 0, 0}
 134 };
 135
 136
 137 _X_EXPORT XF86ModuleData acecadModuleData = {
 138         &VersionRec,
 139         SetupProc,
 140         TearDownProc
 141 };
 142
 143 /*****************************************************************************
 144  *      Function Definitions
 145  ****************************************************************************/
 146
 147 static pointer
 148 SetupProc(      pointer module,
 149                 pointer options,
 150                 int *errmaj,
 151                 int *errmin )
 152 {
 153         xf86AddInputDriver(&ACECAD, module, 0);
 154         return module;
 155 }
 156
 157 static void
 158 TearDownProc( pointer p )
 159 {
 160 #if 0
 161         LocalDevicePtr local = (LocalDevicePtr) p;
 162         AceCadPrivatePtr priv = (AceCadPrivatePtr) local->private;
 163
 164         DeviceOff (local->dev);
 165
 166         xf86CloseSerial (local->fd);
 167         XisbFree (priv->buffer);
 168         xfree (priv);
 169         xfree (local->name);
 170         xfree (local);
 171 #endif
 172 }
 173 #endif
 174
 175 static const char *default_options[] =
 176 {
 177         "BaudRate", "9600",
 178         "StopBits", "1",
 179         "DataBits", "8",
 180         "Parity", "Odd",
 181         "Vmin", "1",
 182         "Vtime", "10",
 183         "FlowControl", "Xoff",
 184         NULL
 185 };
 186
 187 #ifdef LINUX_INPUT
 188 static int
 189 IsUSBLine(int fd)
 190 {
 191     int version;
 192     int err;
 193
 194     SYSCALL(err = ioctl(fd, EVIOCGVERSION, &version));
 195
 196     if (!err) {
 197         xf86MsgVerb(X_PROBED, 4, "Kernel Input driver version is %d.%d.%d\n",
 198                 version >> 16, (version >> 8) & 0xff, version & 0xff);
 199         return 1;
 200     } else {
 201         xf86MsgVerb(X_PROBED, 4, "No Kernel Input driver found\n");
 202         return 0;
 203     }
 204 }
 205
 206 /* Heavily inspired by synaptics/eventcomm.c */
 207
 208 #define DEV_INPUT_EVENT "/dev/input/event"
 209 #define EV_DEV_NAME_MAXLEN 64
 210 #define SET_EVENT_NUM(str, num) \
 211     snprintf(str, EV_DEV_NAME_MAXLEN, "%s%d", DEV_INPUT_EVENT, num)
 212
 213 static Bool
 214 fd_query_acecad(int fd, char *ace_name) {
 215     char name[256] = "Unknown";
 216     int cmp_at = strlen(ace_name);
 217     if (cmp_at > 255)
 218         cmp_at = 255;
 219     ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 220     name[cmp_at] = '\0';
 221     if (xf86NameCmp(name, ace_name) == 0)
 222         return TRUE;
 223     return FALSE;
 224 }
 225
 226 static char ace_name_default[7] = "acecad";
 227
 228 #ifdef LINUX_SYSFS
 229 static char usb_bus_name[4] = "usb";
 230 static char acecad_driver_name[11] = "usb_acecad";
 231 #endif
 232
 233 static Bool
 234 AceCadAutoDevProbe(LocalDevicePtr local, int verb)
 235 {
 236     /* We are trying to find the right eventX device */
 237     int i = 0;
 238     Bool have_evdev = FALSE;
 239     int noent_cnt = 0;
 240     const int max_skip = 10;
 241     char *ace_name = xf86FindOptionValue(local->options, "Name");
 242     char fname[EV_DEV_NAME_MAXLEN];
 243     int np;
 244
 245 #ifdef LINUX_SYSFS
 246     struct sysfs_bus *usb_bus = NULL;
 247     struct sysfs_driver *acecad_driver = NULL;
 248     struct sysfs_device *candidate = NULL;
 249     char *link = NULL;
 250     struct dlist *devs = NULL;
 251     struct dlist *links = NULL;
 252
 253     xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 254     usb_bus = sysfs_open_bus(usb_bus_name);
 255     if (usb_bus) {
 256         xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 257         acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 258         if (acecad_driver) {
 259             xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 260             devs = sysfs_get_driver_devices(acecad_driver);
 261             if (devs) {
 262                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 263                 dlist_for_each_data(devs, candidate, struct sysfs_device) {
 264                     xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 265                     links = sysfs_open_link_list(candidate->path);
 266                     dlist_for_each_data(links, link, char) {
 267                         if (sscanf(link, "input:event%d", &i) == 1) {
 268                             xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 269                             break;
 270                         }
 271                     }
 272                     sysfs_close_list(links);
 273                     if (i > 0) /* We found something */
 274                         break;
 275                 }
 276             } else
 277                 xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 278         } else
 279             xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 280     } else
 281         xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 282     sysfs_close_bus(usb_bus);
 283
 284     if (i > 0) {
 285         /* We found something */
 286         np = SET_EVENT_NUM(fname, i);
 287         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 288             xf86MsgVerb(X_WARNING, verb, "%s: unable to manage event device %d\n", local->name, i);
 289         } else {
 290             goto ProbeFound;
 291         }
 292     } else
 293         xf86MsgVerb(X_WARNING, verb, "%s: no Acecad devices found via sysfs\n", local->name);
 294
 295 #endif
 296
 297     if (!ace_name)
 298         ace_name = ace_name_default;
 299
 300     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 301     for (i = 0; ; i++) {
 302         int fd = -1;
 303         Bool is_acecad;
 304
 305         np = SET_EVENT_NUM(fname, i);
 306         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 307             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 308             break;
 309         }
 310         SYSCALL(fd = open(fname, O_RDONLY));
 311         if (fd < 0) {
 312             if (errno == ENOENT) {
 313                 if (++noent_cnt >= max_skip)
 314                     break;
 315                 else
 316                     continue;
 317             } else {
 318                 continue;
 319             }
 320         }
 321         noent_cnt = 0;
 322         have_evdev = TRUE;
 323         is_acecad = fd_query_acecad(fd, ace_name);
 324         SYSCALL(close(fd));
 325         if (is_acecad) {
 326             goto ProbeFound;
 327         }
 328     }
 329     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 330             local->name, i + 1, ace_name);
 331     if (i <= max_skip)
 332         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 333                 local->name);
 334     if (i > max_skip && !have_evdev)
 335         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 336     return FALSE;
 337
 338 ProbeFound:
 339     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 340             local->name, fname);
 341     xf86ReplaceStrOption(local->options, "Device", fname);
 342     return TRUE;
 343 }
 344
 345 #endif
 346
 347 static InputInfoPtr
 348 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 349 {
 350     LocalDevicePtr local = xf86AllocateInput(drv, 0);
 351     AceCadPrivatePtr priv = xcalloc (1, sizeof(AceCadPrivateRec));
 352     int speed;
 353     int msgtype;
 354     char *s;
 355
 356     if ((!local) || (!priv))
 357         goto SetupProc_fail;
 358
 359     memset(priv, 0, sizeof(AceCadPrivateRec));
 360
 361     local->name = dev->identifier;
 362     local->type_name = XI_TABLET;
 363     local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
 364 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 365     local->motion_history_proc = xf86GetMotionEvents;
 366 #endif
 367     local->control_proc = NULL;
 368     local->close_proc = CloseProc;
 369     local->switch_mode = NULL;
 370     local->conversion_proc = ConvertProc;
 371     local->reverse_conversion_proc = ReverseConvertProc;
 372     local->dev = NULL;
 373     local->private = priv;
 374     local->private_flags = 0;
 375     local->conf_idev = dev;
 376     local->device_control = DeviceControl;
 377     /*local->always_core_feedback = 0;*/
 378
 379     xf86CollectInputOptions(local, default_options, NULL);
 380
 381     xf86OptionListReport(local->options);
 382
 383     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 384
 385     s = xf86FindOptionValue(local->options, "Device");
 386     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 387 #ifdef LINUX_INPUT
 388         priv->flags |= AUTODEV_FLAG;
 389         if (!AceCadAutoDevProbe(local, 0))
 390         {
 391             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 392             goto SetupProc_fail;
 393         }
 394 #else
 395         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 396         goto SetupProc_fail;
 397 #endif
 398     }
 399
 400     local->fd = xf86OpenSerial (local->options);
 401     if (local->fd == -1)
 402     {
 403         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 404         goto SetupProc_fail;
 405     }
 406     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 407
 408 #ifdef LINUX_INPUT
 409     if (IsUSBLine(local->fd)) {
 410         priv->flags |= USB_FLAG;
 411
 412         local->read_input = USBReadInput;
 413
 414         if (USBQueryHardware(local) != Success)
 415         {
 416             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 417             goto SetupProc_fail;
 418         }
 419     } else
 420 #endif
 421     {
 422         local->read_input = ReadInput;
 423
 424         msgtype = X_DEFAULT;
 425         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 426             msgtype = X_CONFIG;
 427             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 428         } else {
 429             speed = 85;
 430         }
 431
 432         switch (speed)
 433         {
 434             case 120:
 435                 priv->acecadReportSpeed = 'Q';
 436                 break;
 437             case 85:
 438                 priv->acecadReportSpeed = 'R';
 439                 break;
 440             case 10:
 441                 priv->acecadReportSpeed = 'S';
 442                 break;
 443             case 2:
 444                 priv->acecadReportSpeed = 'T';
 445                 break;
 446             default:
 447                 priv->acecadReportSpeed = 'R';
 448                 speed = 85;
 449                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 450                 msgtype = X_DEFAULT;
 451         }
 452
 453         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 454
 455         priv->buffer = XisbNew (local->fd, 200);
 456
 457         /*
 458          * Verify that hardware is attached and fuctional
 459          */
 460         if (QueryHardware(priv) != Success)
 461         {
 462             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 463             goto SetupProc_fail;
 464         }
 465     }
 466
 467     s = xf86FindOptionValue(local->options, "Mode");
 468     msgtype = s ? X_CONFIG : X_DEFAULT;
 469     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 470     {
 471         priv->flags |= ABSOLUTE_FLAG;
 472     }
 473
 474     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 475     DBG (9, XisbTrace (priv->buffer, 1));
 476
 477     local->history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 478
 479     xf86ProcessCommonOptions(local, local->options);
 480
 481     local->flags |= XI86_CONFIGURED;
 482
 483     if (local->fd != -1)
 484     {
 485         RemoveEnabledDevice (local->fd);
 486         if (priv->buffer)
 487         {
 488             XisbFree(priv->buffer);
 489             priv->buffer = NULL;
 490         }
 491         xf86CloseSerial(local->fd);
 492     }
 493     RemoveEnabledDevice (local->fd);
 494     local->fd = -1;
 495     return local;
 496
 497     /*
 498      * If something went wrong, cleanup and return NULL
 499      */
 500 SetupProc_fail:
 501     if ((local) && (local->fd))
 502         xf86CloseSerial (local->fd);
 503     if ((priv) && (priv->buffer))
 504         XisbFree (priv->buffer);
 505     if (priv) {
 506         xfree (priv);
 507         if (local)
 508                 local->private = NULL;
 509     }
 510     xf86DeleteInput(local, 0);
 511     return NULL;
 512 }
 513
 514 static Bool
 515 DeviceControl (DeviceIntPtr dev, int mode)
 516 {
 517     Bool RetValue;
 518
 519     switch (mode)
 520     {
 521         case DEVICE_INIT:
 522             DeviceInit(dev);
 523             RetValue = Success;
 524             break;
 525         case DEVICE_ON:
 526             RetValue = DeviceOn(dev);
 527             break;
 528         case DEVICE_OFF:
 529             RetValue = DeviceOff(dev);
 530             break;
 531         case DEVICE_CLOSE:
 532             RetValue = DeviceClose(dev);
 533             break;
 534         default:
 535             RetValue = BadValue;
 536     }
 537
 538     return RetValue;
 539 }
 540
 541 static Bool
 542 DeviceOn (DeviceIntPtr dev)
 543 {
 544     char buffer[256];
 545     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 546     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 547
 548     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 549
 550     local->fd = xf86OpenSerial(local->options);
 551     if (local->fd == -1)
 552     {
 553         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 554         priv->flags &= ~AVAIL_FLAG;
 555 #ifdef LINUX_INPUT
 556         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 557             local->fd = xf86OpenSerial(local->options);
 558         if (local->fd == -1)
 559 #endif
 560             return !Success;
 561     }
 562     priv->flags |= AVAIL_FLAG;
 563
 564
 565     if (!(priv->flags & USB_FLAG)) {
 566         priv->buffer = XisbNew(local->fd, 200);
 567         if (!priv->buffer)
 568         {
 569             xf86CloseSerial(local->fd);
 570             local->fd = -1;
 571             return !Success;
 572         }
 573
 574         /* Rets qu'a l'envoyer a la tablette */
 575         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 576         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 577     }
 578
 579     xf86FlushInput(local->fd);
 580     xf86AddEnabledDevice (local);
 581     dev->public.on = TRUE;
 582     return Success;
 583 }
 584
 585 static Bool
 586 DeviceOff (DeviceIntPtr dev)
 587 {
 588     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 589     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 590
 591     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 592
 593     if (local->fd != -1)
 594     {
 595         RemoveEnabledDevice (local->fd);
 596         if (priv->buffer)
 597         {
 598             XisbFree(priv->buffer);
 599             priv->buffer = NULL;
 600         }
 601         xf86CloseSerial(local->fd);
 602     }
 603
 604
 605     xf86RemoveEnabledDevice (local);
 606     dev->public.on = FALSE;
 607     return Success;
 608 }
 609
 610 static Bool
 611 DeviceClose (DeviceIntPtr dev)
 612 {
 613     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 614
 615     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 616
 617     return Success;
 618 }
 619
 620 static void
 621 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 622 {
 623     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 624
 625     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 626 }
 627
 628 static Bool
 629 DeviceInit (DeviceIntPtr dev)
 630 {
 631     int rx, ry;
 632     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 633     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 634     unsigned char map[] = {0, 1, 2, 3};
 635 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 636     Atom btn_labels[3];
 637     Atom axes_labels[3];
 638
 639     btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
 640     btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
 641     btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
 642
 643     if ((priv->flags & ABSOLUTE_FLAG))
 644     {
 645         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
 646         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
 647         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_PRESSURE);
 648     } else
 649     {
 650         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
 651         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
 652         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Z);
 653     }
 654 #endif
 655
 656     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 657
 658     /* 3 boutons */
 659     if (InitButtonClassDeviceStruct (dev, 3,
 660 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 661                 btn_labels,
 662 #endif
 663                 map) == FALSE)
 664     {
 665         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 666         return !Success;
 667     }
 668
 669     if (InitFocusClassDeviceStruct (dev) == FALSE)
 670     {
 671         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 672         return !Success;
 673     }
 674
 675     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 676         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 677         return !Success;
 678     }
 679
 680
 681     /* 3 axes */
 682     if (InitValuatorClassDeviceStruct (dev, 3,
 683 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 684                 axes_labels,
 685 #endif
 686 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 3
 687                 xf86GetMotionEvents,
 688 #endif
 689                 local->history_size,
 690                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 691             == FALSE)
 692     {
 693         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 694         return !Success;
 695     }
 696     else
 697     {
 698
 699         InitValuatorAxisStruct(dev,
 700                 0,
 701 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 702                 axes_labels[0],
 703 #endif
 704                 0,                      /* min val */
 705 #if XORG_BOTCHED_INPUT
 706                 screenInfo.screens[0]->width,
 707 #else
 708                 priv->acecadMaxX,       /* max val */
 709 #endif
 710                 1000,                   /* resolution */
 711                 0,                      /* min_res */
 712                 1000);                  /* max_res */
 713         InitValuatorAxisStruct(dev,
 714                 1,
 715 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 716                 axes_labels[1],
 717 #endif
 718                 0,                      /* min val */
 719 #if XORG_BOTCHED_INPUT
 720                 screenInfo.screens[0]->height,
 721 #else
 722                 priv->acecadMaxY,       /* max val */
 723 #endif
 724                 1000,                   /* resolution */
 725                 0,                      /* min_res */
 726                 1000);                  /* max_res */
 727         InitValuatorAxisStruct(dev,
 728                 2,
 729 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 730                 axes_labels[2],
 731 #endif
 732                 0,                      /* min val */
 733                 priv->acecadMaxZ,       /* max val */
 734                 1000,                   /* resolution */
 735                 0,                      /* min_res */
 736                 1000);          /* max_res */
 737
 738     }
 739
 740     if (InitProximityClassDeviceStruct (dev) == FALSE)
 741     {
 742         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 743         return !Success;
 744     }
 745
 746     xf86MotionHistoryAllocate (local);
 747
 748
 749     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 750        connaitre la taille... */
 751
 752     if (priv->acecadInc > 95)
 753         priv->acecadInc = 95;
 754     if (priv->acecadInc < 1)
 755     {
 756         /* guess the best increment value given video mode */
 757         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 758         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 759         if (rx < ry)
 760             priv->acecadInc = rx;
 761         else
 762             priv->acecadInc = ry;
 763         if (priv->acecadInc < 1)
 764             priv->acecadInc = 1;
 765     }
 766
 767     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 768
 769     return Success;
 770 }
 771
 772 static void
 773 ReadInput (LocalDevicePtr local)
 774 {
 775     int x, y, z;
 776     int prox, buttons;
 777     int is_core_pointer = 0, is_absolute;
 778     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 779
 780     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 781
 782     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 783 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 784     is_core_pointer = xf86IsCorePointer(local->dev);
 785 #endif
 786
 787     /*
 788      * set blocking to -1 on the first call because we know there is data to
 789      * read. Xisb automatically clears it after one successful read so that
 790      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 791      * read from blocking indefinately.
 792      */
 793     XisbBlockDuration (priv->buffer, -1);
 794
 795     while (AceCadGetPacket (priv) == Success)
 796     {
 797         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 798         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 799
 800         if (!(priv->flags & ABSOLUTE_FLAG))
 801         {
 802             x = priv->packet[0] & XSIGN_BIT? x:-x;
 803             y = priv->packet[0] & YSIGN_BIT? y:-y;
 804         }
 805         else
 806         {
 807             y = priv->acecadMaxY - y ;
 808         }
 809
 810
 811         z = ((int)priv->packet[5] << 2) |
 812             (((int)priv->packet[6] & 0x01) << 1) |
 813             (((int)priv->packet[6] & 0x10) >> 4);
 814
 815         buttons = ((int)priv->packet[0] & 0x07) |
 816             ((int)priv->packet[6] & 0x02 << 2);
 817
 818         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 819
 820         if (prox)
 821         {
 822             if (!(priv->acecadOldProximity))
 823                 if (!is_core_pointer)
 824                 {
 825                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 826                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 827                 }
 828
 829             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 830                     || (!is_absolute && (x || y)))
 831             {
 832                 if (is_absolute || priv->acecadOldProximity)
 833                 {
 834                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 835                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 836                 }
 837             }
 838
 839             if (priv->acecadOldButtons != buttons)
 840             {
 841                 int delta = buttons ^ priv->acecadOldButtons;
 842                 while (delta)
 843                 {
 844                     int id = ffs(delta);
 845                     delta &= ~(1 << (id-1));
 846
 847                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 848                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 849                 }
 850             }
 851
 852             priv->acecadOldButtons = buttons;
 853             priv->acecadOldX = x;
 854             priv->acecadOldY = y;
 855             priv->acecadOldZ = z;
 856             priv->acecadOldProximity = prox;
 857         }
 858         else
 859         {
 860             if (!is_core_pointer)
 861                 if (priv->acecadOldProximity)
 862                 {
 863                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 864                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 865                 }
 866             priv->acecadOldProximity = 0;
 867         }
 868     }
 869     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 870 }
 871
 872 #ifdef LINUX_INPUT
 873 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 874 static void
 875 USBReadInput (LocalDevicePtr local)
 876 {
 877     int len;
 878     struct input_event * event;
 879     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 880     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 881     int x = priv->acecadOldX;
 882     int y = priv->acecadOldY;
 883     int z = priv->acecadOldZ;
 884     int report_x, report_y;
 885     int prox = priv->acecadOldProximity;
 886     int buttons = priv->acecadOldButtons;
 887     int is_core_pointer = 0;
 888 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 889     is_core_pointer = xf86IsCorePointer(local->dev);
 890 #endif
 891     /* Is autodev active? */
 892     int autodev = priv->flags & AUTODEV_FLAG;
 893     /* Was the device available last time we checked? */
 894     int avail = priv->flags & AVAIL_FLAG;
 895
 896     SYSCALL(len = read(local->fd, eventbuf, sizeof(eventbuf)));
 897
 898     if (len <= 0) {
 899         if (avail) {
 900             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 901         }
 902         if (NOTAVAIL) {
 903             priv->flags &= ~AVAIL_FLAG;
 904             if(autodev) {
 905                 if (AceCadAutoDevProbe(local, 4)) {
 906                     DeviceOff(local->dev);
 907                     DeviceOn(local->dev);
 908                 }
 909             }
 910         }
 911         return;
 912     } else {
 913         if (!avail) {
 914             /* If the device wasn't available last time we checked */
 915             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 916             priv->flags |= AVAIL_FLAG;
 917         }
 918     }
 919
 920     for (event = (struct input_event *)eventbuf;
 921             event < (struct input_event *)(eventbuf+len); event++) {
 922
 923         switch (event->type) {
 924             case EV_SYN: /* 2.6.x */
 925                 if (event->code != SYN_REPORT)
 926                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 927                 break;
 928             case EV_ABS:
 929                 switch (event->code) {
 930                     case ABS_X:
 931                         x = event->value;
 932                         break;
 933
 934                     case ABS_Y:
 935                         y = event->value;
 936                         break;
 937
 938                     case ABS_PRESSURE:
 939                         z = event->value;
 940                         break;
 941
 942                     case ABS_MISC:
 943                         break;
 944
 945                 }
 946                 break; /* EV_ABS */
 947
 948             case EV_KEY:
 949                 switch (event->code) {
 950                     case BTN_TOOL_PEN:
 951                         prox = event->value;
 952                         break;
 953
 954                     case BTN_TOUCH:
 955                         buttons = set_bit(buttons,0,event->value);
 956                         break;
 957
 958                     case BTN_STYLUS:
 959                         buttons = set_bit(buttons,1,event->value);
 960                         break;
 961
 962                     case BTN_STYLUS2:
 963                         buttons = set_bit(buttons,2,event->value);
 964                         break;
 965                 }
 966                 break; /* EV_KEY */
 967             default:
 968                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 969         } /* switch event->type */
 970
 971         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 972          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 973          */
 974         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 975                     (event->type == EV_ABS && event->code == ABS_MISC)
 976              )) {
 977             continue;
 978         }
 979
 980         if (prox)
 981         {
 982 #if XORG_BOTCHED_INPUT
 983             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 984 #else
 985             report_x = x;
 986             report_y = y;
 987 #endif
 988             if (!(priv->acecadOldProximity))
 989                 if (!is_core_pointer)
 990                 {
 991                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 992                 }
 993
 994
 995             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 996
 997             if (priv->acecadOldButtons != buttons)
 998             {
 999                 int delta = buttons ^ priv->acecadOldButtons;
1000                 while (delta)
1001                 {
1002                     int id = ffs(delta);
1003                     delta &= ~(1 << (id-1));
1004
1005                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
1006                 }
1007             }
1008         }
1009         else
1010         {
1011             if (!is_core_pointer)
1012                 if (priv->acecadOldProximity)
1013                 {
1014                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
1015                 }
1016             priv->acecadOldProximity = 0;
1017         }
1018
1019         priv->acecadOldButtons = buttons;
1020         priv->acecadOldX = x;
1021         priv->acecadOldY = y;
1022         priv->acecadOldZ = z;
1023         priv->acecadOldProximity = prox;
1024     }
1025     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
1026 }
1027 #endif
1028
1029 static void
1030 CloseProc (LocalDevicePtr local)
1031 {
1032 }
1033
1034 /*
1035  * The ConvertProc function may need to be tailored for your device.
1036  * This function converts the device's valuator outputs to x and y coordinates
1037  * to simulate mouse events.
1038  */
1039 static Bool
1040 ConvertProc (LocalDevicePtr local, int first, int num,
1041         int v0, int v1, int v2, int v3, int v4, int v5,
1042         int *x, int *y)
1043 {
1044     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1045
1046     /* TODO: should have a structure to hold which screen the
1047      * pointer is attached to? */
1048     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1049     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1050     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1051     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1052     return TRUE;
1053 }
1054
1055
1056 static Bool
1057 ReverseConvertProc (LocalDevicePtr local,
1058         int x, int  y,
1059         int *valuators)
1060 {
1061     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1062
1063     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
1064     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1065     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1066     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
1067
1068     return TRUE;
1069 }
1070
1071
1072 #define WriteString(str)\
1073     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1074
1075
1076 static Bool
1077 QueryHardware (AceCadPrivatePtr priv)
1078 {
1079
1080     /* Reset */
1081     WriteString("z0");
1082
1083     /* Wait */
1084     milisleep (250);
1085
1086     /* Prompt Mode in order to not be disturbed */
1087     WriteString(ACECAD_PROMPT_MODE);
1088
1089     /* Flush */
1090     while (XisbRead(priv->buffer) >= 0);
1091
1092     /* Ask for Config packet*/
1093     WriteString(ACECAD_CONFIG);
1094
1095     /* Read the packet */
1096     XisbBlockDuration (priv->buffer, 1000000);
1097     NewPacket (priv);
1098
1099     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1100
1101     if ((AceCadGetPacket (priv) == Success))
1102     {
1103         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1104         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1105         priv->acecadMaxZ = 512;
1106         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1107     }
1108     else
1109         return !Success;
1110
1111     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1112     return Success;
1113 }
1114
1115 #define BITS_PER_LONG (sizeof(long) * 8)
1116 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1117 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1118 #define OFF(x)  ((x)%BITS_PER_LONG)
1119 #define LONG(x) ((x)/BITS_PER_LONG)
1120
1121 #ifdef LINUX_INPUT
1122 static Bool
1123 USBQueryHardware (LocalDevicePtr local)
1124 {
1125     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1126     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1127     int                 i, j;
1128     int                 abs[5];
1129     char                name[256] = "Unknown";
1130
1131     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1132     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1133
1134     memset(bit, 0, sizeof(bit));
1135     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1136
1137     for (i = 0; i < EV_MAX; i++)
1138         if (test_bit(i, bit[0])) {
1139             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1140             for (j = 0; j < KEY_MAX; j++)
1141                 if (test_bit(j, bit[i])) {
1142                     if (i == EV_ABS) {
1143                         ioctl(local->fd, EVIOCGABS(j), abs);
1144                         switch (j) {
1145                             case ABS_X:
1146                                 priv->acecadMaxX = abs[2];
1147                                 break;
1148
1149                             case ABS_Y:
1150                                 priv->acecadMaxY = abs[2];
1151                                 break;
1152
1153                             case ABS_PRESSURE:
1154                                 priv->acecadMaxZ = abs[2];
1155                                 break;
1156                         }
1157                     }
1158                 }
1159         }
1160
1161     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1162     return Success;
1163 }
1164 #endif
1165
1166 static void
1167 NewPacket (AceCadPrivatePtr priv)
1168 {
1169     priv->packeti = 0;
1170 }
1171
1172 static Bool
1173 AceCadGetPacket (AceCadPrivatePtr priv)
1174 {
1175     int count = 0;
1176     int c = 0;
1177
1178     while((c = XisbRead(priv->buffer)) >= 0 )
1179     {
1180
1181         /*
1182          * fail after 500 bytes so the server doesn't hang forever if a
1183          * device sends bad data.
1184          */
1185         if (count++ > 500)
1186         {
1187             NewPacket (priv);
1188             return !Success;
1189         }
1190
1191         if (c & PHASING_BIT)
1192         {
1193             NewPacket(priv);
1194
1195             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1196             XisbBlockDuration (priv->buffer, 10000);
1197             priv->packet[priv->packeti++] = c;
1198             count = ACECAD_PACKET_SIZE - 1;
1199             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1200             {
1201                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1202                 priv->packet[priv->packeti++] = c;
1203             }
1204             XisbBlockDuration (priv->buffer, 0);
1205             if(c > 0)
1206                 return Success;
1207         }
1208     }
1209     return !Success;
1210 }