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 const *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         AceCadUnInit,
 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, const 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     const 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     const 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                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 417                 speed = 85;
 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         xf86RemoveEnabledDevice (local);
 450         if (priv->buffer)
 451         {
 452             XisbFree(priv->buffer);
 453             priv->buffer = NULL;
 454         }
 455         xf86CloseSerial(local->fd);
 456     }
 457     xf86RemoveEnabledDevice (local);
 458     local->fd = -1;
 459     return Success;
 460
 461     /*
 462      * If something went wrong, cleanup and return NULL
 463      */
 464 SetupProc_fail:
 465     return BadAlloc;
 466 }
 467
 468 static void
 469 AceCadUnInit(InputDriverPtr drv, InputInfoPtr local, int flags)
 470 {
 471     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 472
 473     if (local->fd > -1)
 474     {
 475         xf86CloseSerial (local->fd);
 476         local->fd = -1;
 477     }
 478
 479     if (priv) {
 480         if (priv->buffer)
 481             XisbFree (priv->buffer);
 482         free (priv);
 483         local->private = NULL;
 484     }
 485 }
 486
 487 static Bool
 488 DeviceControl (DeviceIntPtr dev, int mode)
 489 {
 490     Bool RetValue;
 491
 492     switch (mode)
 493     {
 494         case DEVICE_INIT:
 495             DeviceInit(dev);
 496             RetValue = Success;
 497             break;
 498         case DEVICE_ON:
 499             RetValue = DeviceOn(dev);
 500             break;
 501         case DEVICE_OFF:
 502             RetValue = DeviceOff(dev);
 503             break;
 504         case DEVICE_CLOSE:
 505             RetValue = DeviceClose(dev);
 506             break;
 507         default:
 508             RetValue = BadValue;
 509     }
 510
 511     return RetValue;
 512 }
 513
 514 static Bool
 515 DeviceOn (DeviceIntPtr dev)
 516 {
 517     char buffer[256];
 518     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 519     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 520
 521     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 522
 523     local->fd = xf86OpenSerial(local->options);
 524     if (local->fd == -1)
 525     {
 526         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 527         priv->flags &= ~AVAIL_FLAG;
 528 #ifdef HAVE_LINUX_INPUT_H
 529         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 530             local->fd = xf86OpenSerial(local->options);
 531         if (local->fd == -1)
 532 #endif
 533             return !Success;
 534     }
 535     priv->flags |= AVAIL_FLAG;
 536
 537
 538     if (!(priv->flags & USB_FLAG)) {
 539         priv->buffer = XisbNew(local->fd, 200);
 540         if (!priv->buffer)
 541         {
 542             xf86CloseSerial(local->fd);
 543             local->fd = -1;
 544             return !Success;
 545         }
 546
 547         /* Rets qu'a l'envoyer a la tablette */
 548         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 549         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 550     }
 551
 552     xf86FlushInput(local->fd);
 553     xf86AddEnabledDevice (local);
 554     dev->public.on = TRUE;
 555     return Success;
 556 }
 557
 558 static Bool
 559 DeviceOff (DeviceIntPtr dev)
 560 {
 561     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 562     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 563
 564     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 565
 566     if (local->fd != -1)
 567     {
 568         xf86RemoveEnabledDevice (local);
 569         if (priv->buffer)
 570         {
 571             XisbFree(priv->buffer);
 572             priv->buffer = NULL;
 573         }
 574         xf86CloseSerial(local->fd);
 575     }
 576
 577
 578     xf86RemoveEnabledDevice (local);
 579     dev->public.on = FALSE;
 580     return Success;
 581 }
 582
 583 static Bool
 584 DeviceClose (DeviceIntPtr dev)
 585 {
 586     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 587
 588     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 589
 590     return Success;
 591 }
 592
 593 static void
 594 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 595 {
 596     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 597
 598     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 599 }
 600
 601 static Bool
 602 DeviceInit (DeviceIntPtr dev)
 603 {
 604     int rx, ry;
 605     InputInfoPtr local = (InputInfoPtr) dev->public.devicePrivate;
 606     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 607     unsigned char map[] = {0, 1, 2, 3};
 608     int history_size;
 609     Atom btn_labels[3];
 610     Atom axes_labels[3];
 611
 612     btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
 613     btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
 614     btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
 615
 616     if ((priv->flags & ABSOLUTE_FLAG))
 617     {
 618         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_X);
 619         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_Y);
 620         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_ABS_PRESSURE);
 621     } else
 622     {
 623         axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
 624         axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
 625         axes_labels[2] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Z);
 626     }
 627
 628     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 629
 630     /* 3 boutons */
 631     if (InitButtonClassDeviceStruct (dev, 3,
 632                 btn_labels,
 633                 map) == FALSE)
 634     {
 635         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 636         return !Success;
 637     }
 638
 639     if (InitFocusClassDeviceStruct (dev) == FALSE)
 640     {
 641         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 642         return !Success;
 643     }
 644
 645     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 646         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 647         return !Success;
 648     }
 649
 650     history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 651
 652     /* 3 axes */
 653     if (InitValuatorClassDeviceStruct (dev, 3,
 654                 axes_labels,
 655                 history_size,
 656                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 657             == FALSE)
 658     {
 659         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 660         return !Success;
 661     }
 662     else
 663     {
 664
 665         InitValuatorAxisStruct(dev,
 666                 0,
 667                 axes_labels[0],
 668                 0,                      /* min val */
 669 #if XORG_BOTCHED_INPUT
 670                 screenInfo.screens[0]->width,
 671 #else
 672                 priv->acecadMaxX,       /* max val */
 673 #endif
 674                 1000,                   /* resolution */
 675                 0,                      /* min_res */
 676                 1000                    /* max_res */
 677                 , Absolute
 678                 );
 679         InitValuatorAxisStruct(dev,
 680                 1,
 681                 axes_labels[1],
 682                 0,                      /* min val */
 683 #if XORG_BOTCHED_INPUT
 684                 screenInfo.screens[0]->height,
 685 #else
 686                 priv->acecadMaxY,       /* max val */
 687 #endif
 688                 1000,                   /* resolution */
 689                 0,                      /* min_res */
 690                 1000                    /* max_res */
 691                 , Absolute
 692                 );
 693         InitValuatorAxisStruct(dev,
 694                 2,
 695                 axes_labels[2],
 696                 0,                      /* min val */
 697                 priv->acecadMaxZ,       /* max val */
 698                 1000,                   /* resolution */
 699                 0,                      /* min_res */
 700                 1000            /* max_res */
 701                 , Absolute
 702                 );
 703
 704     }
 705
 706     if (InitProximityClassDeviceStruct (dev) == FALSE)
 707     {
 708         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 709         return !Success;
 710     }
 711
 712     xf86MotionHistoryAllocate (local);
 713
 714
 715     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 716        connaitre la taille... */
 717
 718     if (priv->acecadInc > 95)
 719         priv->acecadInc = 95;
 720     if (priv->acecadInc < 1)
 721     {
 722         /* guess the best increment value given video mode */
 723         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 724         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 725         if (rx < ry)
 726             priv->acecadInc = rx;
 727         else
 728             priv->acecadInc = ry;
 729         if (priv->acecadInc < 1)
 730             priv->acecadInc = 1;
 731     }
 732
 733     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 734
 735     return Success;
 736 }
 737
 738 static void
 739 ReadInput (InputInfoPtr local)
 740 {
 741     int x, y, z;
 742     int prox, buttons;
 743     int is_absolute;
 744     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 745
 746     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 747
 748     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 749
 750     /*
 751      * set blocking to -1 on the first call because we know there is data to
 752      * read. Xisb automatically clears it after one successful read so that
 753      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 754      * read from blocking indefinately.
 755      */
 756     XisbBlockDuration (priv->buffer, -1);
 757
 758     while (AceCadGetPacket (priv) == Success)
 759     {
 760         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 761         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 762
 763         if (!(priv->flags & ABSOLUTE_FLAG))
 764         {
 765             x = priv->packet[0] & XSIGN_BIT? x:-x;
 766             y = priv->packet[0] & YSIGN_BIT? y:-y;
 767         }
 768         else
 769         {
 770             y = priv->acecadMaxY - y ;
 771         }
 772
 773
 774         z = ((int)priv->packet[5] << 2) |
 775             (((int)priv->packet[6] & 0x01) << 1) |
 776             (((int)priv->packet[6] & 0x10) >> 4);
 777
 778         buttons = ((int)priv->packet[0] & 0x07) |
 779             ((int)priv->packet[6] & 0x02 << 2);
 780
 781         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 782
 783         if (prox)
 784         {
 785             if (!(priv->acecadOldProximity))
 786             {
 787                 /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 788                 xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 789             }
 790
 791             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 792                     || (!is_absolute && (x || y)))
 793             {
 794                 if (is_absolute || priv->acecadOldProximity)
 795                 {
 796                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 797                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 798                 }
 799             }
 800
 801             if (priv->acecadOldButtons != buttons)
 802             {
 803                 int delta = buttons ^ priv->acecadOldButtons;
 804                 while (delta)
 805                 {
 806                     int id = ffs(delta);
 807                     delta &= ~(1 << (id-1));
 808
 809                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 810                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 811                 }
 812             }
 813
 814             priv->acecadOldButtons = buttons;
 815             priv->acecadOldX = x;
 816             priv->acecadOldY = y;
 817             priv->acecadOldZ = z;
 818             priv->acecadOldProximity = prox;
 819         }
 820         else
 821         {
 822             if (priv->acecadOldProximity)
 823             {
 824                 /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 825                 xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 826             }
 827             priv->acecadOldProximity = 0;
 828         }
 829     }
 830     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 831 }
 832
 833 #ifdef HAVE_LINUX_INPUT_H
 834 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 835 static void
 836 USBReadInput (InputInfoPtr local)
 837 {
 838     int len;
 839     struct input_event * event;
 840     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 841     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 842     int x = priv->acecadOldX;
 843     int y = priv->acecadOldY;
 844     int z = priv->acecadOldZ;
 845     int report_x = 0, report_y = 0;
 846     int prox = priv->acecadOldProximity;
 847     int buttons = priv->acecadOldButtons;
 848     /* Is autodev active? */
 849     int autodev = priv->flags & AUTODEV_FLAG;
 850     /* Was the device available last time we checked? */
 851     int avail = priv->flags & AVAIL_FLAG;
 852
 853     SYSCALL(len = xf86ReadSerial(local->fd, eventbuf, sizeof(eventbuf)));
 854
 855     if (len <= 0) {
 856         if (avail) {
 857             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 858         }
 859         if (NOTAVAIL) {
 860             priv->flags &= ~AVAIL_FLAG;
 861             if(autodev) {
 862                 if (AceCadAutoDevProbe(local, 4)) {
 863                     DeviceOff(local->dev);
 864                     DeviceOn(local->dev);
 865                 }
 866             }
 867         }
 868         return;
 869     } else {
 870         if (!avail) {
 871             /* If the device wasn't available last time we checked */
 872             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 873             priv->flags |= AVAIL_FLAG;
 874         }
 875     }
 876
 877     for (event = (struct input_event *)eventbuf;
 878             event < (struct input_event *)(eventbuf+len); event++) {
 879
 880         switch (event->type) {
 881             case EV_SYN: /* 2.6.x */
 882                 if (event->code != SYN_REPORT)
 883                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 884                 break;
 885             case EV_ABS:
 886                 switch (event->code) {
 887                     case ABS_X:
 888                         x = event->value;
 889                         break;
 890
 891                     case ABS_Y:
 892                         y = event->value;
 893                         break;
 894
 895                     case ABS_PRESSURE:
 896                         z = event->value;
 897                         break;
 898
 899                     case ABS_MISC:
 900                         break;
 901
 902                 }
 903                 break; /* EV_ABS */
 904
 905             case EV_KEY:
 906                 switch (event->code) {
 907                     case BTN_TOOL_PEN:
 908                         prox = event->value;
 909                         break;
 910
 911                     case BTN_TOUCH:
 912                         buttons = set_bit(buttons,0,event->value);
 913                         break;
 914
 915                     case BTN_STYLUS:
 916                         buttons = set_bit(buttons,1,event->value);
 917                         break;
 918
 919                     case BTN_STYLUS2:
 920                         buttons = set_bit(buttons,2,event->value);
 921                         break;
 922                 }
 923                 break; /* EV_KEY */
 924             default:
 925                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 926         } /* switch event->type */
 927
 928         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 929          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 930          */
 931         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 932                     (event->type == EV_ABS && event->code == ABS_MISC)
 933              )) {
 934             continue;
 935         }
 936
 937         if (prox)
 938         {
 939 #if XORG_BOTCHED_INPUT
 940             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 941 #else
 942             report_x = x;
 943             report_y = y;
 944 #endif
 945             if (!(priv->acecadOldProximity))
 946             {
 947                 xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 948             }
 949
 950
 951             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 952
 953             if (priv->acecadOldButtons != buttons)
 954             {
 955                 int delta = buttons ^ priv->acecadOldButtons;
 956                 while (delta)
 957                 {
 958                     int id = ffs(delta);
 959                     delta &= ~(1 << (id-1));
 960
 961                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
 962                 }
 963             }
 964         }
 965         else
 966         {
 967             if (priv->acecadOldProximity)
 968             {
 969                 xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
 970             }
 971             priv->acecadOldProximity = 0;
 972         }
 973
 974         priv->acecadOldButtons = buttons;
 975         priv->acecadOldX = x;
 976         priv->acecadOldY = y;
 977         priv->acecadOldZ = z;
 978         priv->acecadOldProximity = prox;
 979     }
 980     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 981 }
 982 #endif
 983
 984 /*
 985  * The ConvertProc function may need to be tailored for your device.
 986  * This function converts the device's valuator outputs to x and y coordinates
 987  * to simulate mouse events.
 988  */
 989 static Bool
 990 ConvertProc (InputInfoPtr local, int first, int num,
 991         int v0, int v1, int v2, int v3, int v4, int v5,
 992         int *x, int *y)
 993 {
 994     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
 995
 996     /* TODO: should have a structure to hold which screen the
 997      * pointer is attached to? */
 998     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
 999     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1000     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1001     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1002     return TRUE;
1003 }
1004
1005
1006 #define WriteString(str)\
1007     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1008
1009
1010 static Bool
1011 QueryHardware (AceCadPrivatePtr priv)
1012 {
1013
1014     /* Reset */
1015     WriteString("z0");
1016
1017     /* Wait */
1018     milisleep (250);
1019
1020     /* Prompt Mode in order to not be disturbed */
1021     WriteString(ACECAD_PROMPT_MODE);
1022
1023     /* Flush */
1024     while (XisbRead(priv->buffer) >= 0);
1025
1026     /* Ask for Config packet*/
1027     WriteString(ACECAD_CONFIG);
1028
1029     /* Read the packet */
1030     XisbBlockDuration (priv->buffer, 1000000);
1031     NewPacket (priv);
1032
1033     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1034
1035     if ((AceCadGetPacket (priv) == Success))
1036     {
1037         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1038         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1039         priv->acecadMaxZ = 512;
1040         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1041     }
1042     else
1043         return !Success;
1044
1045     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1046     return Success;
1047 }
1048
1049 #define BITS_PER_LONG (sizeof(long) * 8)
1050 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1051 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1052 #define OFF(x)  ((x)%BITS_PER_LONG)
1053 #define LONG(x) ((x)/BITS_PER_LONG)
1054
1055 #ifdef HAVE_LINUX_INPUT_H
1056 static Bool
1057 USBQueryHardware (InputInfoPtr local)
1058 {
1059     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1060     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1061     int                 i, j;
1062     int                 abs[5];
1063     char                name[256] = "Unknown";
1064
1065     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1066     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1067
1068     memset(bit, 0, sizeof(bit));
1069     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1070
1071     for (i = 0; i < EV_MAX; i++)
1072         if (test_bit(i, bit[0])) {
1073             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1074             for (j = 0; j < KEY_MAX; j++)
1075                 if (test_bit(j, bit[i])) {
1076                     if (i == EV_ABS) {
1077                         ioctl(local->fd, EVIOCGABS(j), abs);
1078                         switch (j) {
1079                             case ABS_X:
1080                                 priv->acecadMaxX = abs[2];
1081                                 break;
1082
1083                             case ABS_Y:
1084                                 priv->acecadMaxY = abs[2];
1085                                 break;
1086
1087                             case ABS_PRESSURE:
1088                                 priv->acecadMaxZ = abs[2];
1089                                 break;
1090                         }
1091                     }
1092                 }
1093         }
1094
1095     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1096     return Success;
1097 }
1098 #endif
1099
1100 static void
1101 NewPacket (AceCadPrivatePtr priv)
1102 {
1103     priv->packeti = 0;
1104 }
1105
1106 static Bool
1107 AceCadGetPacket (AceCadPrivatePtr priv)
1108 {
1109     int count = 0;
1110     int c = 0;
1111
1112     while((c = XisbRead(priv->buffer)) >= 0 )
1113     {
1114
1115         /*
1116          * fail after 500 bytes so the server doesn't hang forever if a
1117          * device sends bad data.
1118          */
1119         if (count++ > 500)
1120         {
1121             NewPacket (priv);
1122             return !Success;
1123         }
1124
1125         if (c & PHASING_BIT)
1126         {
1127             NewPacket(priv);
1128
1129             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1130             XisbBlockDuration (priv->buffer, 10000);
1131             priv->packet[priv->packeti++] = c;
1132             count = ACECAD_PACKET_SIZE - 1;
1133             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1134             {
1135                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1136                 priv->packet[priv->packeti++] = c;
1137             }
1138             XisbBlockDuration (priv->buffer, 0);
1139             if(c > 0)
1140                 return Success;
1141         }
1142     }
1143     return !Success;
1144 }