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 #define _ACECAD_C_
  39 /*****************************************************************************
  40  *      Standard Headers
  41  ****************************************************************************/
  42
  43 #ifdef LINUX_INPUT
  44 #include <asm/types.h>
  45 #include <linux/input.h>
  46 #ifndef EV_SYN
  47 #define EV_SYN EV_RST
  48 #define SYN_REPORT 0
  49 #endif
  50 #ifdef BUS_PCI
  51 #undef BUS_PCI
  52 #endif
  53 #ifdef BUS_ISA
  54 #undef BUS_ISA
  55 #endif
  56 #endif
  57
  58 #include <misc.h>
  59 #include <xf86.h>
  60 #ifndef NEED_XF86_TYPES
  61 #define NEED_XF86_TYPES
  62 #endif
  63 #include <xf86_OSproc.h>
  64 #include <xisb.h>
  65 #include <xf86Xinput.h>
  66 #include <exevents.h>
  67 #include <xf86Module.h>
  68
  69 #include <string.h>
  70 #include <stdio.h>
  71
  72 #include <errno.h>
  73 #ifdef LINUX_INPUT
  74 #include <fcntl.h>
  75 #ifdef LINUX_SYSFS
  76 #include <sysfs/libsysfs.h>
  77 #include <dlfcn.h>
  78 #endif
  79 #endif
  80
  81 /* Previously found in xf86Xinput.h */
  82 #ifdef DBG
  83 #undef DBG
  84 #endif
  85 #define DBG(lvl, f) {if ((lvl) <= xf86GetVerbosity()) f;}
  86
  87 /*****************************************************************************
  88  *      Local Headers
  89  ****************************************************************************/
  90 #include "acecad.h"
  91
  92 /*****************************************************************************
  93  *      Variables without includable headers
  94  ****************************************************************************/
  95
  96 /*****************************************************************************
  97  *      Local Variables
  98  ****************************************************************************/
  99
 100 #undef read
 101 #define read(a,b,c) xf86ReadSerial((a),(b),(c))
 102
 103 /* max number of input events to read in one read call */
 104 #define MAX_EVENTS 50
 105
 106 _X_EXPORT InputDriverRec ACECAD =
 107 {
 108         1,
 109         "acecad",
 110         NULL,
 111         AceCadPreInit,
 112         NULL,
 113         NULL,
 114         0
 115 };
 116
 117 #ifdef XFree86LOADER
 118 static XF86ModuleVersionInfo VersionRec =
 119 {
 120         "acecad",
 121         MODULEVENDORSTRING,
 122         MODINFOSTRING1,
 123         MODINFOSTRING2,
 124         XORG_VERSION_CURRENT,
 125         PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
 126         ABI_CLASS_XINPUT,
 127         ABI_XINPUT_VERSION,
 128         MOD_CLASS_XINPUT,
 129         {0, 0, 0, 0}
 130 };
 131
 132
 133 _X_EXPORT XF86ModuleData acecadModuleData = {
 134         &VersionRec,
 135         SetupProc,
 136         TearDownProc
 137 };
 138
 139 /*****************************************************************************
 140  *      Function Definitions
 141  ****************************************************************************/
 142
 143 static pointer
 144 SetupProc(      pointer module,
 145                 pointer options,
 146                 int *errmaj,
 147                 int *errmin )
 148 {
 149         xf86AddInputDriver(&ACECAD, module, 0);
 150         return module;
 151 }
 152
 153 static void
 154 TearDownProc( pointer p )
 155 {
 156 #if 0
 157         LocalDevicePtr local = (LocalDevicePtr) p;
 158         AceCadPrivatePtr priv = (AceCadPrivatePtr) local->private;
 159
 160         DeviceOff (local->dev);
 161
 162         xf86CloseSerial (local->fd);
 163         XisbFree (priv->buffer);
 164         xfree (priv);
 165         xfree (local->name);
 166         xfree (local);
 167 #endif
 168 }
 169 #endif
 170
 171 static const char *default_options[] =
 172 {
 173         "BaudRate", "9600",
 174         "StopBits", "1",
 175         "DataBits", "8",
 176         "Parity", "Odd",
 177         "Vmin", "1",
 178         "Vtime", "10",
 179         "FlowControl", "Xoff",
 180         NULL
 181 };
 182
 183 #ifdef LINUX_INPUT
 184 static int
 185 IsUSBLine(int fd)
 186 {
 187     int version;
 188     int err;
 189
 190     SYSCALL(err = ioctl(fd, EVIOCGVERSION, &version));
 191
 192     if (!err) {
 193         xf86MsgVerb(X_PROBED, 4, "Kernel Input driver version is %d.%d.%d\n",
 194                 version >> 16, (version >> 8) & 0xff, version & 0xff);
 195         return 1;
 196     } else {
 197         xf86MsgVerb(X_PROBED, 4, "No Kernel Input driver found\n");
 198         return 0;
 199     }
 200 }
 201
 202 /* Heavily inspired by synaptics/eventcomm.c */
 203
 204 #define DEV_INPUT_EVENT "/dev/input/event"
 205 #define EV_DEV_NAME_MAXLEN 64
 206 #define SET_EVENT_NUM(str, num) \
 207     snprintf(str, EV_DEV_NAME_MAXLEN, "%s%d", DEV_INPUT_EVENT, num)
 208
 209 static Bool
 210 fd_query_acecad(int fd, char *ace_name) {
 211     char name[256] = "Unknown";
 212     int cmp_at = strlen(ace_name);
 213     if (cmp_at > 255)
 214         cmp_at = 255;
 215     ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 216     name[cmp_at] = '\0';
 217     if (xf86NameCmp(name, ace_name) == 0)
 218         return TRUE;
 219     return FALSE;
 220 }
 221
 222 static char ace_name_default[7] = "acecad";
 223
 224 #ifdef LINUX_SYSFS
 225 static char usb_bus_name[4] = "usb";
 226 static char acecad_driver_name[11] = "usb_acecad";
 227 #endif
 228
 229 static Bool
 230 AceCadAutoDevProbe(LocalDevicePtr local, int verb)
 231 {
 232     /* We are trying to find the right eventX device */
 233     int i = 0;
 234     Bool have_evdev = FALSE;
 235     int noent_cnt = 0;
 236     const int max_skip = 10;
 237     char *ace_name = xf86FindOptionValue(local->options, "Name");
 238     char fname[EV_DEV_NAME_MAXLEN];
 239     int np;
 240
 241 #ifdef LINUX_SYSFS
 242     struct sysfs_bus *usb_bus = NULL;
 243     struct sysfs_driver *acecad_driver = NULL;
 244     struct sysfs_device *candidate = NULL;
 245     char *link = NULL;
 246     struct dlist *devs = NULL;
 247     struct dlist *links = NULL;
 248     unsigned int major = 0, minor = 0;
 249     void *libsysfs = NULL;
 250
 251     if (libsysfs = dlopen("libsysfs.so", RTLD_NOW | RTLD_GLOBAL)) {
 252         xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 253         usb_bus = sysfs_open_bus(usb_bus_name);
 254         if (usb_bus) {
 255             xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 256             acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 257             if (acecad_driver) {
 258                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 259                 devs = sysfs_get_driver_devices(acecad_driver);
 260                 if (devs) {
 261                     xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 262                     dlist_for_each_data(devs, candidate, struct sysfs_device) {
 263                         xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 264                         links = sysfs_open_link_list(candidate->path);
 265                         dlist_for_each_data(links, link, char) {
 266                             if (sscanf(link, "input:event%d", &i) == 1) {
 267                                 xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 268                                 break;
 269                             }
 270                         }
 271                         sysfs_close_list(links);
 272                         if (i > 0) /* We found something */
 273                             break;
 274                     }
 275                 } else
 276                     xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 277             } else
 278                 xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 279         } else
 280             xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 281         sysfs_close_bus(usb_bus);
 282         dlclose(libsysfs);
 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     } else
 295         xf86MsgVerb(X_WARNING, 4, "%s: libsysfs not found\n", local->name);
 296
 297 #endif
 298
 299     if (!ace_name)
 300         ace_name = ace_name_default;
 301
 302     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 303     for (i = 0; ; i++) {
 304         int fd = -1;
 305         Bool is_acecad;
 306
 307         np = SET_EVENT_NUM(fname, i);
 308         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 309             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 310             break;
 311         }
 312         SYSCALL(fd = open(fname, O_RDONLY));
 313         if (fd < 0) {
 314             if (errno == ENOENT) {
 315                 if (++noent_cnt >= max_skip)
 316                     break;
 317                 else
 318                     continue;
 319             } else {
 320                 continue;
 321             }
 322         }
 323         noent_cnt = 0;
 324         have_evdev = TRUE;
 325         is_acecad = fd_query_acecad(fd, ace_name);
 326         SYSCALL(close(fd));
 327         if (is_acecad) {
 328             goto ProbeFound;
 329         }
 330     }
 331     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 332             local->name, i + 1, ace_name);
 333     if (i <= max_skip)
 334         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 335                 local->name);
 336     if (i > max_skip && !have_evdev)
 337         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 338     return FALSE;
 339
 340 ProbeFound:
 341     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 342             local->name, fname);
 343     xf86ReplaceStrOption(local->options, "Device", fname);
 344     return TRUE;
 345 }
 346
 347 #endif
 348
 349 static InputInfoPtr
 350 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 351 {
 352     LocalDevicePtr local = xf86AllocateInput(drv, 0);
 353     AceCadPrivatePtr priv = xcalloc (1, sizeof(AceCadPrivateRec));
 354     int speed;
 355     int msgtype;
 356     char *s;
 357
 358     if ((!local) || (!priv))
 359         goto SetupProc_fail;
 360
 361     memset(priv, 0, sizeof(AceCadPrivateRec));
 362
 363     local->name = dev->identifier;
 364     local->type_name = XI_TABLET;
 365     local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
 366 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 367     local->motion_history_proc = xf86GetMotionEvents;
 368 #endif
 369     local->control_proc = NULL;
 370     local->close_proc = CloseProc;
 371     local->switch_mode = NULL;
 372     local->conversion_proc = ConvertProc;
 373     local->reverse_conversion_proc = ReverseConvertProc;
 374     local->dev = NULL;
 375     local->private = priv;
 376     local->private_flags = 0;
 377     local->conf_idev = dev;
 378     local->device_control = DeviceControl;
 379     /*local->always_core_feedback = 0;*/
 380
 381     xf86CollectInputOptions(local, default_options, NULL);
 382
 383     xf86OptionListReport(local->options);
 384
 385     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 386
 387     s = xf86FindOptionValue(local->options, "Device");
 388     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 389 #ifdef LINUX_INPUT
 390         priv->flags |= AUTODEV_FLAG;
 391         if (!AceCadAutoDevProbe(local, 0))
 392         {
 393             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 394             goto SetupProc_fail;
 395         }
 396 #else
 397         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 398         goto SetupProc_fail;
 399 #endif
 400     }
 401
 402     local->fd = xf86OpenSerial (local->options);
 403     if (local->fd == -1)
 404     {
 405         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 406         goto SetupProc_fail;
 407     }
 408     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 409
 410 #ifdef LINUX_INPUT
 411     if (IsUSBLine(local->fd)) {
 412         priv->flags |= USB_FLAG;
 413
 414         local->read_input = USBReadInput;
 415
 416         if (USBQueryHardware(local) != Success)
 417         {
 418             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 419             goto SetupProc_fail;
 420         }
 421     } else
 422 #endif
 423     {
 424         local->read_input = ReadInput;
 425
 426         msgtype = X_DEFAULT;
 427         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 428             msgtype = X_CONFIG;
 429             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 430         } else {
 431             speed = 85;
 432         }
 433
 434         switch (speed)
 435         {
 436             case 120:
 437                 priv->acecadReportSpeed = 'Q';
 438                 break;
 439             case 85:
 440                 priv->acecadReportSpeed = 'R';
 441                 break;
 442             case 10:
 443                 priv->acecadReportSpeed = 'S';
 444                 break;
 445             case 2:
 446                 priv->acecadReportSpeed = 'T';
 447                 break;
 448             default:
 449                 priv->acecadReportSpeed = 'R';
 450                 speed = 85;
 451                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 452                 msgtype = X_DEFAULT;
 453         }
 454
 455         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 456
 457         priv->buffer = XisbNew (local->fd, 200);
 458
 459         /*
 460          * Verify that hardware is attached and fuctional
 461          */
 462         if (QueryHardware(priv) != Success)
 463         {
 464             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 465             goto SetupProc_fail;
 466         }
 467     }
 468
 469     s = xf86FindOptionValue(local->options, "Mode");
 470     msgtype = s ? X_CONFIG : X_DEFAULT;
 471     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 472     {
 473         priv->flags |= ABSOLUTE_FLAG;
 474     }
 475
 476     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 477     DBG (9, XisbTrace (priv->buffer, 1));
 478
 479     local->history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 480
 481     xf86ProcessCommonOptions(local, local->options);
 482
 483     local->flags |= XI86_CONFIGURED;
 484
 485     if (local->fd != -1)
 486     {
 487         RemoveEnabledDevice (local->fd);
 488         if (priv->buffer)
 489         {
 490             XisbFree(priv->buffer);
 491             priv->buffer = NULL;
 492         }
 493         xf86CloseSerial(local->fd);
 494     }
 495     RemoveEnabledDevice (local->fd);
 496     local->fd = -1;
 497     return local;
 498
 499     /*
 500      * If something went wrong, cleanup and return NULL
 501      */
 502 SetupProc_fail:
 503     if ((local) && (local->fd))
 504         xf86CloseSerial (local->fd);
 505     if ((priv) && (priv->buffer))
 506         XisbFree (priv->buffer);
 507     if (priv) {
 508         xfree (priv);
 509         if (local)
 510                 local->private = NULL;
 511     }
 512     xf86DeleteInput(local, 0);
 513     return NULL;
 514 }
 515
 516 static Bool
 517 DeviceControl (DeviceIntPtr dev, int mode)
 518 {
 519     Bool RetValue;
 520
 521     switch (mode)
 522     {
 523         case DEVICE_INIT:
 524             DeviceInit(dev);
 525             RetValue = Success;
 526             break;
 527         case DEVICE_ON:
 528             RetValue = DeviceOn(dev);
 529             break;
 530         case DEVICE_OFF:
 531             RetValue = DeviceOff(dev);
 532             break;
 533         case DEVICE_CLOSE:
 534             RetValue = DeviceClose(dev);
 535             break;
 536         default:
 537             RetValue = BadValue;
 538     }
 539
 540     return RetValue;
 541 }
 542
 543 static Bool
 544 DeviceOn (DeviceIntPtr dev)
 545 {
 546     char buffer[256];
 547     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 548     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 549
 550     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 551
 552     local->fd = xf86OpenSerial(local->options);
 553     if (local->fd == -1)
 554     {
 555         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 556         priv->flags &= ~AVAIL_FLAG;
 557 #ifdef LINUX_INPUT
 558         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 559             local->fd = xf86OpenSerial(local->options);
 560         if (local->fd == -1)
 561 #endif
 562             return !Success;
 563     }
 564     priv->flags |= AVAIL_FLAG;
 565
 566
 567     if (!(priv->flags & USB_FLAG)) {
 568         priv->buffer = XisbNew(local->fd, 200);
 569         if (!priv->buffer)
 570         {
 571             xf86CloseSerial(local->fd);
 572             local->fd = -1;
 573             return !Success;
 574         }
 575
 576         /* Rets qu'a l'envoyer a la tablette */
 577         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 578         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 579     }
 580
 581     xf86FlushInput(local->fd);
 582     xf86AddEnabledDevice (local);
 583     dev->public.on = TRUE;
 584     return Success;
 585 }
 586
 587 static Bool
 588 DeviceOff (DeviceIntPtr dev)
 589 {
 590     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 591     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 592
 593     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 594
 595     if (local->fd != -1)
 596     {
 597         RemoveEnabledDevice (local->fd);
 598         if (priv->buffer)
 599         {
 600             XisbFree(priv->buffer);
 601             priv->buffer = NULL;
 602         }
 603         xf86CloseSerial(local->fd);
 604     }
 605
 606
 607     xf86RemoveEnabledDevice (local);
 608     dev->public.on = FALSE;
 609     return Success;
 610 }
 611
 612 static Bool
 613 DeviceClose (DeviceIntPtr dev)
 614 {
 615     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 616
 617     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 618
 619     return Success;
 620 }
 621
 622 static void
 623 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 624 {
 625     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 626
 627     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 628 }
 629
 630 static Bool
 631 DeviceInit (DeviceIntPtr dev)
 632 {
 633     int rx, ry;
 634     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 635     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 636     unsigned char map[] =
 637     {0, 1, 2, 3};
 638
 639     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 640
 641     /* 3 boutons */
 642     if (InitButtonClassDeviceStruct (dev, 3, map) == FALSE)
 643     {
 644         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 645         return !Success;
 646     }
 647
 648     if (InitFocusClassDeviceStruct (dev) == FALSE)
 649     {
 650         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 651         return !Success;
 652     }
 653
 654     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 655         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 656         return !Success;
 657     }
 658
 659
 660     /* 3 axes */
 661     if (InitValuatorClassDeviceStruct (dev, 3, xf86GetMotionEvents,
 662                 local->history_size,
 663                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 664             == FALSE)
 665     {
 666         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 667         return !Success;
 668     }
 669     else
 670     {
 671
 672         InitValuatorAxisStruct(dev,
 673                 0,
 674                 0,                      /* min val */
 675 #if XORG_BOTCHED_INPUT
 676                 screenInfo.screens[0]->width,
 677 #else
 678                 priv->acecadMaxX,       /* max val */
 679 #endif
 680                 1000,                   /* resolution */
 681                 0,                      /* min_res */
 682                 1000);                  /* max_res */
 683         InitValuatorAxisStruct(dev,
 684                 1,
 685                 0,                      /* min val */
 686 #if XORG_BOTCHED_INPUT
 687                 screenInfo.screens[0]->height,
 688 #else
 689                 priv->acecadMaxY,       /* max val */
 690 #endif
 691                 1000,                   /* resolution */
 692                 0,                      /* min_res */
 693                 1000);                  /* max_res */
 694         InitValuatorAxisStruct(dev,
 695                 2,
 696                 0,                      /* min val */
 697                 priv->acecadMaxZ,       /* max val */
 698                 1000,                   /* resolution */
 699                 0,                      /* min_res */
 700                 1000);          /* max_res */
 701
 702     }
 703
 704     if (InitProximityClassDeviceStruct (dev) == FALSE)
 705     {
 706         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 707         return !Success;
 708     }
 709
 710     xf86MotionHistoryAllocate (local);
 711
 712
 713     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 714        connaitre la taille... */
 715
 716     if (priv->acecadInc > 95)
 717         priv->acecadInc = 95;
 718     if (priv->acecadInc < 1)
 719     {
 720         /* guess the best increment value given video mode */
 721         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 722         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 723         if (rx < ry)
 724             priv->acecadInc = rx;
 725         else
 726             priv->acecadInc = ry;
 727         if (priv->acecadInc < 1)
 728             priv->acecadInc = 1;
 729     }
 730
 731     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 732
 733     return Success;
 734 }
 735
 736 static void
 737 ReadInput (LocalDevicePtr local)
 738 {
 739     int x, y, z;
 740     int prox, buttons;
 741     int is_core_pointer = 1, is_absolute;
 742     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 743
 744     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 745
 746     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 747 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 748     is_core_pointer = xf86IsCorePointer(local->dev);
 749 #endif
 750
 751     /*
 752      * set blocking to -1 on the first call because we know there is data to
 753      * read. Xisb automatically clears it after one successful read so that
 754      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 755      * read from blocking indefinately.
 756      */
 757     XisbBlockDuration (priv->buffer, -1);
 758
 759     while (AceCadGetPacket (priv) == Success)
 760     {
 761         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 762         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 763
 764         if (!(priv->flags & ABSOLUTE_FLAG))
 765         {
 766             x = priv->packet[0] & XSIGN_BIT? x:-x;
 767             y = priv->packet[0] & YSIGN_BIT? y:-y;
 768         }
 769         else
 770         {
 771             y = priv->acecadMaxY - y ;
 772         }
 773
 774
 775         z = ((int)priv->packet[5] << 2) |
 776             (((int)priv->packet[6] & 0x01) << 1) |
 777             (((int)priv->packet[6] & 0x10) >> 4);
 778
 779         buttons = ((int)priv->packet[0] & 0x07) |
 780             ((int)priv->packet[6] & 0x02 << 2);
 781
 782         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 783
 784         if (prox)
 785         {
 786             if (!(priv->acecadOldProximity))
 787                 if (!is_core_pointer)
 788                 {
 789                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 790                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 791                 }
 792
 793             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 794                     || (!is_absolute && (x || y)))
 795             {
 796                 if (is_absolute || priv->acecadOldProximity)
 797                 {
 798                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 799                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 800                 }
 801             }
 802
 803             if (priv->acecadOldButtons != buttons)
 804             {
 805                 int delta = buttons ^ priv->acecadOldButtons;
 806                 while (delta)
 807                 {
 808                     int id = ffs(delta);
 809                     delta &= ~(1 << (id-1));
 810
 811                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 812                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 813                 }
 814             }
 815
 816             priv->acecadOldButtons = buttons;
 817             priv->acecadOldX = x;
 818             priv->acecadOldY = y;
 819             priv->acecadOldZ = z;
 820             priv->acecadOldProximity = prox;
 821         }
 822         else
 823         {
 824             if (!is_core_pointer)
 825                 if (priv->acecadOldProximity)
 826                 {
 827                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 828                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 829                 }
 830             priv->acecadOldProximity = 0;
 831         }
 832     }
 833     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 834 }
 835
 836 #ifdef LINUX_INPUT
 837 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 838 static void
 839 USBReadInput (LocalDevicePtr local)
 840 {
 841     int len;
 842     struct input_event * event;
 843     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 844     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 845     int x = priv->acecadOldX;
 846     int y = priv->acecadOldY;
 847     int z = priv->acecadOldZ;
 848     int report_x, report_y;
 849     int prox = priv->acecadOldProximity;
 850     int buttons = priv->acecadOldButtons;
 851     int is_core_pointer = 1;
 852 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 853     is_core_pointer = xf86IsCorePointer(local->dev);
 854 #endif
 855     /* Is autodev active? */
 856     int autodev = priv->flags & AUTODEV_FLAG;
 857     /* Was the device available last time we checked? */
 858     int avail = priv->flags & AVAIL_FLAG;
 859
 860     SYSCALL(len = read(local->fd, eventbuf, sizeof(eventbuf)));
 861
 862     if (len <= 0) {
 863         if (avail) {
 864             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 865         }
 866         if (NOTAVAIL) {
 867             priv->flags &= ~AVAIL_FLAG;
 868             if(autodev) {
 869                 if (AceCadAutoDevProbe(local, 4)) {
 870                     DeviceOff(local->dev);
 871                     DeviceOn(local->dev);
 872                 }
 873             }
 874         }
 875         return;
 876     } else {
 877         if (!avail) {
 878             /* If the device wasn't available last time we checked */
 879             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 880             priv->flags |= AVAIL_FLAG;
 881         }
 882     }
 883
 884     for (event = (struct input_event *)eventbuf;
 885             event < (struct input_event *)(eventbuf+len); event++) {
 886
 887         switch (event->type) {
 888             case EV_SYN: /* 2.6.x */
 889                 if (event->code != SYN_REPORT)
 890                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 891                 break;
 892             case EV_ABS:
 893                 switch (event->code) {
 894                     case ABS_X:
 895                         x = event->value;
 896                         break;
 897
 898                     case ABS_Y:
 899                         y = event->value;
 900                         break;
 901
 902                     case ABS_PRESSURE:
 903                         z = event->value;
 904                         break;
 905
 906                     case ABS_MISC:
 907                         break;
 908
 909                 }
 910                 break; /* EV_ABS */
 911
 912             case EV_KEY:
 913                 switch (event->code) {
 914                     case BTN_TOOL_PEN:
 915                         prox = event->value;
 916                         break;
 917
 918                     case BTN_TOUCH:
 919                         buttons = set_bit(buttons,0,event->value);
 920                         break;
 921
 922                     case BTN_STYLUS:
 923                         buttons = set_bit(buttons,1,event->value);
 924                         break;
 925
 926                     case BTN_STYLUS2:
 927                         buttons = set_bit(buttons,2,event->value);
 928                         break;
 929                 }
 930                 break; /* EV_KEY */
 931             default:
 932                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 933         } /* switch event->type */
 934
 935         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 936          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 937          */
 938         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 939                     (event->type == EV_ABS && event->code == ABS_MISC)
 940              )) {
 941             continue;
 942         }
 943
 944         if (prox)
 945         {
 946 #if XORG_BOTCHED_INPUT
 947             ConvertProc(local, 0, 3, x, y, 0, 0, 0, 0, &report_x, &report_y);
 948 #else
 949             report_x = x;
 950             report_y = y;
 951 #endif
 952             if (!(priv->acecadOldProximity))
 953                 if (!is_core_pointer)
 954                 {
 955                     xf86PostProximityEvent(local->dev, 1, 0, 3 , report_x, report_y, z);
 956                 }
 957
 958
 959             xf86PostMotionEvent(local->dev, 1, 0, 3, report_x, report_y, z);
 960
 961             if (priv->acecadOldButtons != buttons)
 962             {
 963                 int delta = buttons ^ priv->acecadOldButtons;
 964                 while (delta)
 965                 {
 966                     int id = ffs(delta);
 967                     delta &= ~(1 << (id-1));
 968
 969                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, report_x, report_y, z);
 970                 }
 971             }
 972         }
 973         else
 974         {
 975             if (!is_core_pointer)
 976                 if (priv->acecadOldProximity)
 977                 {
 978                     xf86PostProximityEvent(local->dev, 0, 0, 3, report_x, report_y, z);
 979                 }
 980             priv->acecadOldProximity = 0;
 981         }
 982
 983         priv->acecadOldButtons = buttons;
 984         priv->acecadOldX = x;
 985         priv->acecadOldY = y;
 986         priv->acecadOldZ = z;
 987         priv->acecadOldProximity = prox;
 988     }
 989     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 990 }
 991 #endif
 992
 993 static void
 994 CloseProc (LocalDevicePtr local)
 995 {
 996 }
 997
 998 /*
 999  * The ConvertProc function may need to be tailored for your device.
1000  * This function converts the device's valuator outputs to x and y coordinates
1001  * to simulate mouse events.
1002  */
1003 static Bool
1004 ConvertProc (LocalDevicePtr local, int first, int num,
1005         int v0, int v1, int v2, int v3, int v4, int v5,
1006         int *x, int *y)
1007 {
1008     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1009
1010     /* TODO: should have a structure to hold which screen the
1011      * pointer is attached to? */
1012     // xf86Msg(X_INFO, "%s: coordinate conversion in : %d, %d\n", local->name, v0, v1);
1013     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
1014     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
1015     // xf86Msg(X_INFO, "%s: coordinate conversion out: %d, %d\n", local->name, *x, *y);
1016     return TRUE;
1017 }
1018
1019
1020 static Bool
1021 ReverseConvertProc (LocalDevicePtr local,
1022         int x, int  y,
1023         int *valuators)
1024 {
1025     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
1026
1027     // xf86Msg(X_INFO, "%s: reverse coordinate conversion in : %d, %d\n", local->name, x, y);
1028     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1029     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1030     // xf86Msg(X_INFO, "%s: reverse coordinate conversion out: %d, %d\n", local->name, valuators[0], valuators[1]);
1031
1032     return TRUE;
1033 }
1034
1035
1036 #define WriteString(str)\
1037     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1038
1039
1040 static Bool
1041 QueryHardware (AceCadPrivatePtr priv)
1042 {
1043
1044     /* Reset */
1045     WriteString("z0");
1046
1047     /* Wait */
1048     milisleep (250);
1049
1050     /* Prompt Mode in order to not be disturbed */
1051     WriteString(ACECAD_PROMPT_MODE);
1052
1053     /* Flush */
1054     while (XisbRead(priv->buffer) >= 0);
1055
1056     /* Ask for Config packet*/
1057     WriteString(ACECAD_CONFIG);
1058
1059     /* Read the packet */
1060     XisbBlockDuration (priv->buffer, 1000000);
1061     NewPacket (priv);
1062
1063     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1064
1065     if ((AceCadGetPacket (priv) == Success))
1066     {
1067         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1068         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1069         priv->acecadMaxZ = 512;
1070         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1071     }
1072     else
1073         return !Success;
1074
1075     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1076     return Success;
1077 }
1078
1079 #define BITS_PER_LONG (sizeof(long) * 8)
1080 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1081 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1082 #define OFF(x)  ((x)%BITS_PER_LONG)
1083 #define LONG(x) ((x)/BITS_PER_LONG)
1084
1085 #ifdef LINUX_INPUT
1086 static Bool
1087 USBQueryHardware (LocalDevicePtr local)
1088 {
1089     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1090     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1091     int                 i, j;
1092     int                 abs[5];
1093     char                name[256] = "Unknown";
1094
1095     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1096     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1097
1098     memset(bit, 0, sizeof(bit));
1099     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1100
1101     for (i = 0; i < EV_MAX; i++)
1102         if (test_bit(i, bit[0])) {
1103             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1104             for (j = 0; j < KEY_MAX; j++)
1105                 if (test_bit(j, bit[i])) {
1106                     if (i == EV_ABS) {
1107                         ioctl(local->fd, EVIOCGABS(j), abs);
1108                         switch (j) {
1109                             case ABS_X:
1110                                 priv->acecadMaxX = abs[2];
1111                                 break;
1112
1113                             case ABS_Y:
1114                                 priv->acecadMaxY = abs[2];
1115                                 break;
1116
1117                             case ABS_PRESSURE:
1118                                 priv->acecadMaxZ = abs[2];
1119                                 break;
1120                         }
1121                     }
1122                 }
1123         }
1124
1125     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1126     return Success;
1127 }
1128 #endif
1129
1130 static void
1131 NewPacket (AceCadPrivatePtr priv)
1132 {
1133     priv->packeti = 0;
1134 }
1135
1136 static Bool
1137 AceCadGetPacket (AceCadPrivatePtr priv)
1138 {
1139     int count = 0;
1140     int c = 0;
1141
1142     while((c = XisbRead(priv->buffer)) >= 0 )
1143     {
1144
1145         /*
1146          * fail after 500 bytes so the server doesn't hang forever if a
1147          * device sends bad data.
1148          */
1149         if (count++ > 500)
1150         {
1151             NewPacket (priv);
1152             return !Success;
1153         }
1154
1155         if (c & PHASING_BIT)
1156         {
1157             NewPacket(priv);
1158
1159             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1160             XisbBlockDuration (priv->buffer, 10000);
1161             priv->packet[priv->packeti++] = c;
1162             count = ACECAD_PACKET_SIZE - 1;
1163             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1164             {
1165                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1166                 priv->packet[priv->packeti++] = c;
1167             }
1168             XisbBlockDuration (priv->buffer, 0);
1169             if(c > 0)
1170                 return Success;
1171         }
1172     }
1173     return !Success;
1174 }