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 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
  83 #include <X11/Xatom.h>
  84 #include <xserver-properties.h>
  85 #endif
  86
  87 /* Previously found in xf86Xinput.h */
  88 #ifdef DBG
  89 #undef DBG
  90 #endif
  91 #define DBG(lvl, f) {if ((lvl) <= xf86GetVerbosity()) f;}
  92
  93 /*****************************************************************************
  94  *      Local Headers
  95  ****************************************************************************/
  96 #include "acecad.h"
  97
  98 /*****************************************************************************
  99  *      Variables without includable headers
 100  ****************************************************************************/
 101
 102 /*****************************************************************************
 103  *      Local Variables
 104  ****************************************************************************/
 105
 106 /* max number of input events to read in one read call */
 107 #define MAX_EVENTS 50
 108
 109 static char *default_options[] =
 110 {
 111         "BaudRate", "9600",
 112         "StopBits", "1",
 113         "DataBits", "8",
 114         "Parity", "Odd",
 115         "Vmin", "1",
 116         "Vtime", "10",
 117         "FlowControl", "Xoff",
 118         NULL
 119 };
 120
 121 _X_EXPORT InputDriverRec ACECAD =
 122 {
 123         1,
 124         "acecad",
 125         NULL,
 126         AceCadPreInit,
 127         NULL,
 128         NULL,
 129 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
 130         default_options
 131 #endif
 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 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 12
 335 static int NewAceCadPreInit(InputDriverPtr drv, InputInfoPtr dev, int flags);
 336
 337 static InputInfoPtr
 338 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 339 {
 340     InputInfoPtr local = xf86AllocateInput(drv, 0);
 341     AceCadPrivatePtr priv = calloc (1, sizeof(AceCadPrivateRec));
 342
 343     if ((!local))
 344         goto SetupProc_fail;
 345
 346     local->name = dev->identifier;
 347     local->type_name = XI_TABLET;
 348     local->flags = XI86_SEND_DRAG_EVENTS;
 349 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 350     local->motion_history_proc = xf86GetMotionEvents;
 351 #endif
 352     local->control_proc = NULL;
 353     local->switch_mode = NULL;
 354     local->conversion_proc = ConvertProc;
 355     local->reverse_conversion_proc = ReverseConvertProc;
 356     local->dev = NULL;
 357     local->private = priv;
 358     local->private_flags = 0;
 359     local->conf_idev = dev;
 360     /*local->always_core_feedback = 0;*/
 361
 362     xf86CollectInputOptions(local, default_options, NULL);
 363
 364     xf86OptionListReport(local->options);
 365
 366     if (NewAceCadPreInit(drv, local, flags) == Success)
 367         return local;
 368
 369 SetupProc_fail:
 370     return NULL;
 371 }
 372
 373 static Bool
 374 ReverseConvertProc (InputInfoPtr local,
 375         int x, int  y,
 376         int *valuators)
 377 {
 378     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
 379
 380     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
 381     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
 382     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
 383     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
 384
 385     return TRUE;
 386 }
 387
 388 static int
 389 NewAceCadPreInit(InputDriverPtr drv, InputInfoPtr local, int flags)
 390 #else
 391 static int
 392 AceCadPreInit(InputDriverPtr drv, InputInfoPtr local, int flags)
 393 #endif
 394 {
 395     AceCadPrivatePtr priv = calloc (1, sizeof(AceCadPrivateRec));
 396     int speed;
 397     int msgtype;
 398     char *s;
 399
 400     if (!priv)
 401         return BadAlloc;
 402
 403     memset(priv, 0, sizeof(AceCadPrivateRec));
 404
 405     local->device_control = DeviceControl;
 406
 407     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 408
 409     s = xf86FindOptionValue(local->options, "Device");
 410     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 411 #ifdef HAVE_LINUX_INPUT_H
 412         priv->flags |= AUTODEV_FLAG;
 413         if (!AceCadAutoDevProbe(local, 0))
 414         {
 415             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 416             goto SetupProc_fail;
 417         }
 418 #else
 419         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 420         goto SetupProc_fail;
 421 #endif
 422     }
 423
 424     local->fd = xf86OpenSerial (local->options);
 425     if (local->fd == -1)
 426     {
 427         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 428         goto SetupProc_fail;
 429     }
 430     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 431
 432 #ifdef HAVE_LINUX_INPUT_H
 433     if (IsUSBLine(local->fd)) {
 434         priv->flags |= USB_FLAG;
 435
 436         local->read_input = USBReadInput;
 437
 438         if (USBQueryHardware(local) != Success)
 439         {
 440             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 441             goto SetupProc_fail;
 442         }
 443     } else
 444 #endif
 445     {
 446         local->read_input = ReadInput;
 447
 448         msgtype = X_DEFAULT;
 449         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 450             msgtype = X_CONFIG;
 451             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 452         } else {
 453             speed = 85;
 454         }
 455
 456         switch (speed)
 457         {
 458             case 120:
 459                 priv->acecadReportSpeed = 'Q';
 460                 break;
 461             case 85:
 462                 priv->acecadReportSpeed = 'R';
 463                 break;
 464             case 10:
 465                 priv->acecadReportSpeed = 'S';
 466                 break;
 467             case 2:
 468                 priv->acecadReportSpeed = 'T';
 469                 break;
 470             default:
 471                 priv->acecadReportSpeed = 'R';
 472                 speed = 85;
 473                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 474                 msgtype = X_DEFAULT;
 475         }
 476
 477         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 478
 479         priv->buffer = XisbNew (local->fd, 200);
 480
 481         /*
 482          * Verify that hardware is attached and fuctional
 483          */
 484         if (QueryHardware(priv) != Success)
 485         {
 486             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 487             goto SetupProc_fail;
 488         }
 489     }
 490
 491     s = xf86FindOptionValue(local->options, "Mode");
 492     msgtype = s ? X_CONFIG : X_DEFAULT;
 493     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 494     {
 495         priv->flags |= ABSOLUTE_FLAG;
 496     }
 497
 498     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 499     DBG (9, XisbTrace (priv->buffer, 1));
 500
 501     xf86ProcessCommonOptions(local, local->options);
 502
 503 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 12
 504     local->flags |= XI86_CONFIGURED;
 505 #endif
 506
 507     if (local->fd != -1)
 508     {
 509         RemoveEnabledDevice (local->fd);
 510         if (priv->buffer)
 511         {
 512             XisbFree(priv->buffer);
 513             priv->buffer = NULL;
 514         }
 515         xf86CloseSerial(local->fd);
 516     }
 517     RemoveEnabledDevice (local->fd);
 518     local->fd = -1;
 519     return Success;
 520
 521     /*
 522      * If something went wrong, cleanup and return NULL
 523      */
 524 SetupProc_fail:
 525     if ((local) && (local->fd))
 526         xf86CloseSerial (local->fd);
 527     if ((priv) && (priv->buffer))
 528         XisbFree (priv->buffer);
 529     if (priv) {
 530         free (priv);
 531         if (local)
 532                 local->private = NULL;
 533     }
 534     xf86DeleteInput(local, 0);
 535     return BadAlloc;
 536 }
 537
 538 static Bool
 539 DeviceControl (DeviceIntPtr dev, int mode)
 540 {
 541     Bool RetValue;
 542
 543     switch (mode)
 544     {
 545         case DEVICE_INIT:
 546             DeviceInit(dev);
 547             RetValue = Success;
 548             break;
 549         case DEVICE_ON:
 550             RetValue = DeviceOn(dev);
 551             break;
 552         case DEVICE_OFF:
 553             RetValue = DeviceOff(dev);
 554             break;
 555         case DEVICE_CLOSE:
 556             RetValue = DeviceClose(dev);
 557             break;
 558         default:
 559             RetValue = BadValue;
 560     }
 561
 562     return RetValue;
 563 }
 564
 565 static Bool
 566 DeviceOn (DeviceIntPtr dev)
 567 {
 568     char buffer[256];
 569     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 570     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 571
 572     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 573
 574     local->fd = xf86OpenSerial(local->options);
 575     if (local->fd == -1)
 576     {
 577         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 578         priv->flags &= ~AVAIL_FLAG;
 579 #ifdef HAVE_LINUX_INPUT_H
 580         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 581             local->fd = xf86OpenSerial(local->options);
 582         if (local->fd == -1)
 583 #endif
 584             return !Success;
 585     }
 586     priv->flags |= AVAIL_FLAG;
 587
 588
 589     if (!(priv->flags & USB_FLAG)) {
 590         priv->buffer = XisbNew(local->fd, 200);
 591         if (!priv->buffer)
 592         {
 593             xf86CloseSerial(local->fd);
 594             local->fd = -1;
 595             return !Success;
 596         }
 597
 598         /* Rets qu'a l'envoyer a la tablette */
 599         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 600         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 601     }
 602
 603     xf86FlushInput(local->fd);
 604     xf86AddEnabledDevice (local);
 605     dev->public.on = TRUE;
 606     return Success;
 607 }
 608
 609 static Bool
 610 DeviceOff (DeviceIntPtr dev)
 611 {
 612     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 613     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 614
 615     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 616
 617     if (local->fd != -1)
 618     {
 619         RemoveEnabledDevice (local->fd);
 620         if (priv->buffer)
 621         {
 622             XisbFree(priv->buffer);
 623             priv->buffer = NULL;
 624         }
 625         xf86CloseSerial(local->fd);
 626     }
 627
 628
 629     xf86RemoveEnabledDevice (local);
 630     dev->public.on = FALSE;
 631     return Success;
 632 }
 633
 634 static Bool
 635 DeviceClose (DeviceIntPtr dev)
 636 {
 637     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 638
 639     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 640
 641     return Success;
 642 }
 643
 644 static void
 645 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 646 {
 647     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 648
 649     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 650 }
 651
 652 static Bool
 653 DeviceInit (DeviceIntPtr dev)
 654 {
 655     int rx, ry;
 656     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 657     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 658     unsigned char map[] = {0, 1, 2, 3};
 659     int history_size;
 660 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 661     Atom btn_labels[3];
 662     Atom axes_labels[3];
 663
 664     btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
 665     btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
 666     btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
 667
 668     if ((priv->flags & ABSOLUTE_FLAG))
 669     {
 670         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
 671         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
 672         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_PRESSURE);
 673     } else
 674     {
 675         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
 676         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
 677         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Z);
 678     }
 679 #endif
 680
 681     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 682
 683     /* 3 boutons */
 684     if (InitButtonClassDeviceStruct (dev, 3,
 685 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 686                 btn_labels,
 687 #endif
 688                 map) == FALSE)
 689     {
 690         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 691         return !Success;
 692     }
 693
 694     if (InitFocusClassDeviceStruct (dev) == FALSE)
 695     {
 696         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 697         return !Success;
 698     }
 699
 700     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 701         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 702         return !Success;
 703     }
 704
 705     history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 706
 707     /* 3 axes */
 708     if (InitValuatorClassDeviceStruct (dev, 3,
 709 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 710                 axes_labels,
 711 #endif
 712 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) < 3
 713                 xf86GetMotionEvents,
 714 #endif
 715                 history_size,
 716                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 717             == FALSE)
 718     {
 719         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 720         return !Success;
 721     }
 722     else
 723     {
 724
 725         InitValuatorAxisStruct(dev,
 726                 0,
 727 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 728                 axes_labels[0],
 729 #endif
 730                 0,                      /* min val */
 731 #if XORG_BOTCHED_INPUT
 732                 screenInfo.screens[0]->width,
 733 #else
 734                 priv->acecadMaxX,       /* max val */
 735 #endif
 736                 1000,                   /* resolution */
 737                 0,                      /* min_res */
 738                 1000                    /* max_res */
 739 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
 740                 , Absolute
 741 #endif
 742                 );
 743         InitValuatorAxisStruct(dev,
 744                 1,
 745 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 746                 axes_labels[1],
 747 #endif
 748                 0,                      /* min val */
 749 #if XORG_BOTCHED_INPUT
 750                 screenInfo.screens[0]->height,
 751 #else
 752                 priv->acecadMaxY,       /* max val */
 753 #endif
 754                 1000,                   /* resolution */
 755                 0,                      /* min_res */
 756                 1000                    /* max_res */
 757 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
 758                 , Absolute
 759 #endif
 760                 );
 761         InitValuatorAxisStruct(dev,
 762                 2,
 763 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
 764                 axes_labels[2],
 765 #endif
 766                 0,                      /* min val */
 767                 priv->acecadMaxZ,       /* max val */
 768                 1000,                   /* resolution */
 769                 0,                      /* min_res */
 770                 1000            /* max_res */
 771 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 12
 772                 , Absolute
 773 #endif
 774                 );
 775
 776     }
 777
 778     if (InitProximityClassDeviceStruct (dev) == FALSE)
 779     {
 780         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 781         return !Success;
 782     }
 783
 784     xf86MotionHistoryAllocate (local);
 785
 786
 787     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 788        connaitre la taille... */
 789
 790     if (priv->acecadInc > 95)
 791         priv->acecadInc = 95;
 792     if (priv->acecadInc < 1)
 793     {
 794         /* guess the best increment value given video mode */
 795         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 796         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 797         if (rx < ry)
 798             priv->acecadInc = rx;
 799         else
 800             priv->acecadInc = ry;
 801         if (priv->acecadInc < 1)
 802             priv->acecadInc = 1;
 803     }
 804
 805     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 806
 807     return Success;
 808 }
 809
 810 static void
 811 ReadInput (InputInfoPtr local)
 812 {
 813     int x, y, z;
 814     int prox, buttons;
 815     int is_core_pointer = 0, is_absolute;
 816     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 817
 818     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 819
 820     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 821 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 822     is_core_pointer = xf86IsCorePointer(local->dev);
 823 #endif
 824
 825     /*
 826      * set blocking to -1 on the first call because we know there is data to
 827      * read. Xisb automatically clears it after one successful read so that
 828      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 829      * read from blocking indefinately.
 830      */
 831     XisbBlockDuration (priv->buffer, -1);
 832
 833     while (AceCadGetPacket (priv) == Success)
 834     {
 835         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 836         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 837
 838         if (!(priv->flags & ABSOLUTE_FLAG))
 839         {
 840             x = priv->packet[0] & XSIGN_BIT? x:-x;
 841             y = priv->packet[0] & YSIGN_BIT? y:-y;
 842         }
 843         else
 844         {
 845             y = priv->acecadMaxY - y ;
 846         }
 847
 848
 849         z = ((int)priv->packet[5] << 2) |
 850             (((int)priv->packet[6] & 0x01) << 1) |
 851             (((int)priv->packet[6] & 0x10) >> 4);
 852
 853         buttons = ((int)priv->packet[0] & 0x07) |
 854             ((int)priv->packet[6] & 0x02 << 2);
 855
 856         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 857
 858         if (prox)
 859         {
 860             if (!(priv->acecadOldProximity))
 861                 if (!is_core_pointer)
 862                 {
 863                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 864                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 865                 }
 866
 867             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 868                     || (!is_absolute && (x || y)))
 869             {
 870                 if (is_absolute || priv->acecadOldProximity)
 871                 {
 872                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 873                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 874                 }
 875             }
 876
 877             if (priv->acecadOldButtons != buttons)
 878             {
 879                 int delta = buttons ^ priv->acecadOldButtons;
 880                 while (delta)
 881                 {
 882                     int id = ffs(delta);
 883                     delta &= ~(1 << (id-1));
 884
 885                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 886                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 887                 }
 888             }
 889
 890             priv->acecadOldButtons = buttons;
 891             priv->acecadOldX = x;
 892             priv->acecadOldY = y;
 893             priv->acecadOldZ = z;
 894             priv->acecadOldProximity = prox;
 895         }
 896         else
 897         {
 898             if (!is_core_pointer)
 899                 if (priv->acecadOldProximity)
 900                 {
 901                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 902                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 903                 }
 904             priv->acecadOldProximity = 0;
 905         }
 906     }
 907     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 908 }
 909
 910 #ifdef HAVE_LINUX_INPUT_H
 911 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 912 static void
 913 USBReadInput (InputInfoPtr local)
 914 {
 915     int len;
 916     struct input_event * event;
 917     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 918     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 919     int x = priv->acecadOldX;
 920     int y = priv->acecadOldY;
 921     int z = priv->acecadOldZ;
 922     int report_x = 0, report_y = 0;
 923     int prox = priv->acecadOldProximity;
 924     int buttons = priv->acecadOldButtons;
 925     int is_core_pointer = 0;
 926 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 927     is_core_pointer = xf86IsCorePointer(local->dev);
 928 #endif
 929     /* Is autodev active? */
 930     int autodev = priv->flags & AUTODEV_FLAG;
 931     /* Was the device available last time we checked? */
 932     int avail = priv->flags & AVAIL_FLAG;
 933
 934     SYSCALL(len = xf86ReadSerial(local->fd, eventbuf, sizeof(eventbuf)));
 935
 936     if (len <= 0) {
 937         if (avail) {
 938             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 939         }
 940         if (NOTAVAIL) {
 941             priv->flags &= ~AVAIL_FLAG;
 942             if(autodev) {
 943                 if (AceCadAutoDevProbe(local, 4)) {
 944                     DeviceOff(local->dev);
 945                     DeviceOn(local->dev);
 946                 }
 947             }
 948         }
 949         return;
 950     } else {
 951         if (!avail) {
 952             /* If the device wasn't available last time we checked */
 953             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 954             priv->flags |= AVAIL_FLAG;
 955         }
 956     }
 957
 958     for (event = (struct input_event *)eventbuf;
 959             event < (struct input_event *)(eventbuf+len); event++) {
 960
 961         switch (event->type) {
 962             case EV_SYN: /* 2.6.x */
 963                 if (event->code != SYN_REPORT)
 964                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 965                 break;
 966             case EV_ABS:
 967                 switch (event->code) {
 968                     case ABS_X:
 969                         x = event->value;
 970                         break;
 971
 972                     case ABS_Y:
 973                         y = event->value;
 974                         break;
 975
 976                     case ABS_PRESSURE:
 977                         z = event->value;
 978                         break;
 979
 980                     case ABS_MISC:
 981                         break;
 982
 983                 }
 984                 break; /* EV_ABS */
 985
 986             case EV_KEY:
 987                 switch (event->code) {
 988                     case BTN_TOOL_PEN:
 989                         prox = event->value;
 990                         break;
 991
 992                     case BTN_TOUCH:
 993                         buttons = set_bit(buttons,0,event->value);
 994                         break;
 995
 996                     case BTN_STYLUS:
 997                         buttons = set_bit(buttons,1,event->value);
 998                         break;
 999
1000                     case BTN_STYLUS2:
1001                         buttons = set_bit(buttons,2,event->value);
1002                         break;
1003                 }
1004                 break; /* EV_KEY */
1005             default:
1006                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
1007         } /* switch event->type */
1008
1009         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
1010          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
1011          */
1012         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
1013                     (event->type == EV_ABS && event->code == ABS_MISC)
1014              )) {
1015             continue;
1016         }
1017
1018         if (prox)
1019         {
1020 #if XORG_BOTCHED_INPUT
1021             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
1022 #else
1023             report_x = x;
1024             report_y = y;
1025 #endif
1026             if (!(priv->acecadOldProximity))
1027                 if (!is_core_pointer)
1028                 {
1029                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
1030                 }
1031
1032
1033             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
1034
1035             if (priv->acecadOldButtons != buttons)
1036             {
1037                 int delta = buttons ^ priv->acecadOldButtons;
1038                 while (delta)
1039                 {
1040                     int id = ffs(delta);
1041                     delta &= ~(1 << (id-1));
1042
1043                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
1044                 }
1045             }
1046         }
1047         else
1048         {
1049             if (!is_core_pointer)
1050                 if (priv->acecadOldProximity)
1051                 {
1052                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
1053                 }
1054             priv->acecadOldProximity = 0;
1055         }
1056
1057         priv->acecadOldButtons = buttons;
1058         priv->acecadOldX = x;
1059         priv->acecadOldY = y;
1060         priv->acecadOldZ = z;
1061         priv->acecadOldProximity = prox;
1062     }
1063     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
1064 }
1065 #endif
1066
1067 /*
1068  * The ConvertProc function may need to be tailored for your device.
1069  * This function converts the device's valuator outputs to x and y coordinates
1070  * to simulate mouse events.
1071  */
1072 static Bool
1073 ConvertProc (InputInfoPtr local, int first, int num,
1074         int v0, int v1, int v2, int v3, int v4, int v5,
1075         int *x, int *y)
1076 {
1077     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1078
1079     /* TODO: should have a structure to hold which screen the
1080      * pointer is attached to? */
1081     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1082     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1083     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1084     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1085     return TRUE;
1086 }
1087
1088
1089 #define WriteString(str)\
1090     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1091
1092
1093 static Bool
1094 QueryHardware (AceCadPrivatePtr priv)
1095 {
1096
1097     /* Reset */
1098     WriteString("z0");
1099
1100     /* Wait */
1101     milisleep (250);
1102
1103     /* Prompt Mode in order to not be disturbed */
1104     WriteString(ACECAD_PROMPT_MODE);
1105
1106     /* Flush */
1107     while (XisbRead(priv->buffer) >= 0);
1108
1109     /* Ask for Config packet*/
1110     WriteString(ACECAD_CONFIG);
1111
1112     /* Read the packet */
1113     XisbBlockDuration (priv->buffer, 1000000);
1114     NewPacket (priv);
1115
1116     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1117
1118     if ((AceCadGetPacket (priv) == Success))
1119     {
1120         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1121         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1122         priv->acecadMaxZ = 512;
1123         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1124     }
1125     else
1126         return !Success;
1127
1128     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1129     return Success;
1130 }
1131
1132 #define BITS_PER_LONG (sizeof(long) * 8)
1133 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1134 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1135 #define OFF(x)  ((x)%BITS_PER_LONG)
1136 #define LONG(x) ((x)/BITS_PER_LONG)
1137
1138 #ifdef HAVE_LINUX_INPUT_H
1139 static Bool
1140 USBQueryHardware (InputInfoPtr local)
1141 {
1142     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1143     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1144     int                 i, j;
1145     int                 abs[5];
1146     char                name[256] = "Unknown";
1147
1148     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1149     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1150
1151     memset(bit, 0, sizeof(bit));
1152     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1153
1154     for (i = 0; i < EV_MAX; i++)
1155         if (test_bit(i, bit[0])) {
1156             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1157             for (j = 0; j < KEY_MAX; j++)
1158                 if (test_bit(j, bit[i])) {
1159                     if (i == EV_ABS) {
1160                         ioctl(local->fd, EVIOCGABS(j), abs);
1161                         switch (j) {
1162                             case ABS_X:
1163                                 priv->acecadMaxX = abs[2];
1164                                 break;
1165
1166                             case ABS_Y:
1167                                 priv->acecadMaxY = abs[2];
1168                                 break;
1169
1170                             case ABS_PRESSURE:
1171                                 priv->acecadMaxZ = abs[2];
1172                                 break;
1173                         }
1174                     }
1175                 }
1176         }
1177
1178     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1179     return Success;
1180 }
1181 #endif
1182
1183 static void
1184 NewPacket (AceCadPrivatePtr priv)
1185 {
1186     priv->packeti = 0;
1187 }
1188
1189 static Bool
1190 AceCadGetPacket (AceCadPrivatePtr priv)
1191 {
1192     int count = 0;
1193     int c = 0;
1194
1195     while((c = XisbRead(priv->buffer)) >= 0 )
1196     {
1197
1198         /*
1199          * fail after 500 bytes so the server doesn't hang forever if a
1200          * device sends bad data.
1201          */
1202         if (count++ > 500)
1203         {
1204             NewPacket (priv);
1205             return !Success;
1206         }
1207
1208         if (c & PHASING_BIT)
1209         {
1210             NewPacket(priv);
1211
1212             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1213             XisbBlockDuration (priv->buffer, 10000);
1214             priv->packet[priv->packeti++] = c;
1215             count = ACECAD_PACKET_SIZE - 1;
1216             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1217             {
1218                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1219                 priv->packet[priv->packeti++] = c;
1220             }
1221             XisbBlockDuration (priv->buffer, 0);
1222             if(c > 0)
1223                 return Success;
1224         }
1225     }
1226     return !Success;
1227 }