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 #define _ACECAD_C_
  31 /*****************************************************************************
  32  *      Standard Headers
  33  ****************************************************************************/
  34
  35 #ifdef LINUX_INPUT
  36 #include <asm/types.h>
  37 #include <linux/input.h>
  38 #ifndef EV_SYN
  39 #define EV_SYN EV_RST
  40 #define SYN_REPORT 0
  41 #endif
  42 #ifdef BUS_PCI
  43 #undef BUS_PCI
  44 #endif
  45 #ifdef BUS_ISA
  46 #undef BUS_ISA
  47 #endif
  48 #endif
  49
  50 #include <misc.h>
  51 #include <xf86.h>
  52 #ifndef NEED_XF86_TYPES
  53 #define NEED_XF86_TYPES
  54 #endif
  55 #include <xf86_OSproc.h>
  56 #include <xisb.h>
  57 #include <xf86Xinput.h>
  58 #include <exevents.h>
  59 #include <xf86Module.h>
  60
  61 #include <string.h>
  62 #include <stdio.h>
  63
  64 #include <errno.h>
  65 #ifdef LINUX_INPUT
  66 #include <fcntl.h>
  67 #ifdef LINUX_SYSFS
  68 #include <sysfs/libsysfs.h>
  69 #include <dlfcn.h>
  70 #endif
  71 #endif
  72
  73 /* Previously found in xf86Xinput.h */
  74 #ifdef DBG
  75 #undef DBG
  76 #endif
  77 #define DBG(lvl, f) {if ((lvl) <= xf86GetVerbosity()) f;}
  78
  79 /*****************************************************************************
  80  *      Local Headers
  81  ****************************************************************************/
  82 #include "acecad.h"
  83
  84 /*****************************************************************************
  85  *      Variables without includable headers
  86  ****************************************************************************/
  87
  88 /*****************************************************************************
  89  *      Local Variables
  90  ****************************************************************************/
  91
  92 #undef read
  93 #define read(a,b,c) xf86ReadSerial((a),(b),(c))
  94
  95 /* max number of input events to read in one read call */
  96 #define MAX_EVENTS 50
  97
  98 _X_EXPORT InputDriverRec ACECAD =
  99 {
 100         1,
 101         "acecad",
 102         NULL,
 103         AceCadPreInit,
 104         NULL,
 105         NULL,
 106         0
 107 };
 108
 109 #ifdef XFree86LOADER
 110 static XF86ModuleVersionInfo VersionRec =
 111 {
 112         "acecad",
 113         MODULEVENDORSTRING,
 114         MODINFOSTRING1,
 115         MODINFOSTRING2,
 116         XORG_VERSION_CURRENT,
 117         PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
 118         ABI_CLASS_XINPUT,
 119         ABI_XINPUT_VERSION,
 120         MOD_CLASS_XINPUT,
 121         {0, 0, 0, 0}
 122 };
 123
 124
 125 _X_EXPORT XF86ModuleData acecadModuleData = {
 126         &VersionRec,
 127         SetupProc,
 128         TearDownProc
 129 };
 130
 131 /*****************************************************************************
 132  *      Function Definitions
 133  ****************************************************************************/
 134
 135 static pointer
 136 SetupProc(      pointer module,
 137                 pointer options,
 138                 int *errmaj,
 139                 int *errmin )
 140 {
 141         xf86AddInputDriver(&ACECAD, module, 0);
 142         return module;
 143 }
 144
 145 static void
 146 TearDownProc( pointer p )
 147 {
 148 #if 0
 149         LocalDevicePtr local = (LocalDevicePtr) p;
 150         AceCadPrivatePtr priv = (AceCadPrivatePtr) local->private;
 151
 152         DeviceOff (local->dev);
 153
 154         xf86CloseSerial (local->fd);
 155         XisbFree (priv->buffer);
 156         xfree (priv);
 157         xfree (local->name);
 158         xfree (local);
 159 #endif
 160 }
 161 #endif
 162
 163 static const char *default_options[] =
 164 {
 165         "BaudRate", "9600",
 166         "StopBits", "1",
 167         "DataBits", "8",
 168         "Parity", "Odd",
 169         "Vmin", "1",
 170         "Vtime", "10",
 171         "FlowControl", "Xoff",
 172         NULL
 173 };
 174
 175 #ifdef LINUX_INPUT
 176 static int
 177 IsUSBLine(int fd)
 178 {
 179     int version;
 180     int err;
 181
 182     SYSCALL(err = ioctl(fd, EVIOCGVERSION, &version));
 183
 184     if (!err) {
 185         xf86MsgVerb(X_PROBED, 4, "Kernel Input driver version is %d.%d.%d\n",
 186                 version >> 16, (version >> 8) & 0xff, version & 0xff);
 187         return 1;
 188     } else {
 189         xf86MsgVerb(X_PROBED, 4, "No Kernel Input driver found\n");
 190         return 0;
 191     }
 192 }
 193
 194 /* Heavily inspired by synaptics/eventcomm.c */
 195
 196 #define DEV_INPUT_EVENT "/dev/input/event"
 197 #define EV_DEV_NAME_MAXLEN 64
 198 #define SET_EVENT_NUM(str, num) \
 199     snprintf(str, EV_DEV_NAME_MAXLEN, "%s%d", DEV_INPUT_EVENT, num)
 200
 201 static Bool
 202 fd_query_acecad(int fd, char *ace_name) {
 203     char name[256] = "Unknown";
 204     int cmp_at = strlen(ace_name);
 205     if (cmp_at > 255)
 206         cmp_at = 255;
 207     ioctl(fd, EVIOCGNAME(sizeof(name)), name);
 208     name[cmp_at] = '\0';
 209     if (xf86NameCmp(name, ace_name) == 0)
 210         return TRUE;
 211     return FALSE;
 212 }
 213
 214 static char ace_name_default[7] = "acecad";
 215
 216 #ifdef LINUX_SYSFS
 217 static char usb_bus_name[4] = "usb";
 218 static char acecad_driver_name[11] = "usb_acecad";
 219 #endif
 220
 221 static Bool
 222 AceCadAutoDevProbe(LocalDevicePtr local, int verb)
 223 {
 224     /* We are trying to find the right eventX device */
 225     int i = 0;
 226     Bool have_evdev = FALSE;
 227     int noent_cnt = 0;
 228     const int max_skip = 10;
 229     char *ace_name = xf86FindOptionValue(local->options, "Name");
 230     char fname[EV_DEV_NAME_MAXLEN];
 231     int np;
 232
 233 #ifdef LINUX_SYSFS
 234     struct sysfs_bus *usb_bus = NULL;
 235     struct sysfs_driver *acecad_driver = NULL;
 236     struct sysfs_device *candidate = NULL;
 237     char *link = NULL;
 238     struct dlist *devs = NULL;
 239     struct dlist *links = NULL;
 240     unsigned int major = 0, minor = 0;
 241     void *libsysfs = NULL;
 242
 243     if (libsysfs = dlopen("libsysfs.so", RTLD_NOW | RTLD_GLOBAL)) {
 244         xf86MsgVerb(X_INFO, verb, "%s: querying sysfs for Acecad tablets\n", local->name);
 245         usb_bus = sysfs_open_bus(usb_bus_name);
 246         if (usb_bus) {
 247             xf86MsgVerb(X_PROBED, 4, "%s: usb bus opened\n", local->name);
 248             acecad_driver = sysfs_get_bus_driver(usb_bus, acecad_driver_name);
 249             if (acecad_driver) {
 250                 xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad driver opened\n", local->name);
 251                 devs = sysfs_get_driver_devices(acecad_driver);
 252                 if (devs) {
 253                     xf86MsgVerb(X_PROBED, 4, "%s: usb_acecad devices retrieved\n", local->name);
 254                     dlist_for_each_data(devs, candidate, struct sysfs_device) {
 255                         xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s\n", local->name, candidate->name, candidate->path);
 256                         links = sysfs_open_link_list(candidate->path);
 257                         dlist_for_each_data(links, link, char) {
 258                             if (sscanf(link, "input:event%d", &i) == 1) {
 259                                 xf86MsgVerb(X_PROBED, 4, "%s: device %s at %s: %s\n", local->name, candidate->name, candidate->path, link);
 260                                 break;
 261                             }
 262                         }
 263                         sysfs_close_list(links);
 264                         if (i > 0) /* We found something */
 265                             break;
 266                     }
 267                 } else
 268                     xf86MsgVerb(X_WARNING, 4, "%s: no usb_acecad devices found\n", local->name);
 269             } else
 270                 xf86MsgVerb(X_WARNING, 4, "%s: usb_acecad driver not found\n", local->name);
 271         } else
 272             xf86MsgVerb(X_WARNING, 4, "%s: usb bus not found\n", local->name);
 273         sysfs_close_bus(usb_bus);
 274         dlclose(libsysfs);
 275
 276         if (i > 0) {
 277             /* We found something */
 278             np = SET_EVENT_NUM(fname, i);
 279             if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 280                 xf86MsgVerb(X_WARNING, verb, "%s: unable to manage event device %d\n", local->name, i);
 281             } else {
 282                 goto ProbeFound;
 283             }
 284         } else
 285             xf86MsgVerb(X_WARNING, verb, "%s: no Acecad devices found via sysfs\n", local->name);
 286     } else
 287         xf86MsgVerb(X_WARNING, 4, "%s: libsysfs not found\n", local->name);
 288
 289 #endif
 290
 291     if (!ace_name)
 292         ace_name = ace_name_default;
 293
 294     xf86MsgVerb(X_INFO, verb, "%s: probing event devices for Acecad tablets\n", local->name);
 295     for (i = 0; ; i++) {
 296         int fd = -1;
 297         Bool is_acecad;
 298
 299         np = SET_EVENT_NUM(fname, i);
 300         if (np < 0 || np >= EV_DEV_NAME_MAXLEN) {
 301             xf86MsgVerb(X_WARNING, verb, "%s: too many devices, giving up %d\n", local->name, i);
 302             break;
 303         }
 304         SYSCALL(fd = open(fname, O_RDONLY));
 305         if (fd < 0) {
 306             if (errno == ENOENT) {
 307                 if (++noent_cnt >= max_skip)
 308                     break;
 309                 else
 310                     continue;
 311             } else {
 312                 continue;
 313             }
 314         }
 315         noent_cnt = 0;
 316         have_evdev = TRUE;
 317         is_acecad = fd_query_acecad(fd, ace_name);
 318         SYSCALL(close(fd));
 319         if (is_acecad) {
 320             goto ProbeFound;
 321         }
 322     }
 323     xf86MsgVerb(X_WARNING, verb, "%s: no Acecad event device found (checked %d nodes, no device name started with '%s')\n",
 324             local->name, i + 1, ace_name);
 325     if (i <= max_skip)
 326         xf86MsgVerb(X_WARNING, verb, "%s: The /dev/input/event* device nodes seem to be missing\n",
 327                 local->name);
 328     if (i > max_skip && !have_evdev)
 329         xf86MsgVerb(X_WARNING, verb, "%s: The evdev kernel module seems to be missing\n", local->name);
 330     return FALSE;
 331
 332 ProbeFound:
 333     xf86Msg(X_PROBED, "%s auto-dev sets device to %s\n",
 334             local->name, fname);
 335     xf86ReplaceStrOption(local->options, "Device", fname);
 336     return TRUE;
 337 }
 338
 339 #endif
 340
 341 static InputInfoPtr
 342 AceCadPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
 343 {
 344     LocalDevicePtr local = xf86AllocateInput(drv, 0);
 345     AceCadPrivatePtr priv = xcalloc (1, sizeof(AceCadPrivateRec));
 346     int speed;
 347     int msgtype;
 348     char *s;
 349
 350     if ((!local) || (!priv))
 351         goto SetupProc_fail;
 352
 353     memset(priv, 0, sizeof(AceCadPrivateRec));
 354
 355     local->name = dev->identifier;
 356     local->type_name = "ACECAD Tablet";
 357     local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
 358 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 359     local->motion_history_proc = xf86GetMotionEvents;
 360 #endif
 361     local->control_proc = NULL;
 362     local->close_proc = CloseProc;
 363     local->switch_mode = NULL;
 364     local->conversion_proc = ConvertProc;
 365     local->reverse_conversion_proc = ReverseConvertProc;
 366     local->dev = NULL;
 367     local->private = priv;
 368     local->private_flags = 0;
 369     local->conf_idev = dev;
 370     local->device_control = DeviceControl;
 371     /*local->always_core_feedback = 0;*/
 372
 373     xf86CollectInputOptions(local, default_options, NULL);
 374
 375     xf86OptionListReport(local->options);
 376
 377     priv->acecadInc = xf86SetIntOption(local->options, "Increment", 0 );
 378
 379     s = xf86FindOptionValue(local->options, "Device");
 380     if (!s || (s && (xf86NameCmp(s, "auto-dev") == 0))) {
 381 #ifdef LINUX_INPUT
 382         priv->flags |= AUTODEV_FLAG;
 383         if (!AceCadAutoDevProbe(local, 0))
 384         {
 385             xf86Msg(X_ERROR, "%s: unable to find device\n", local->name);
 386             goto SetupProc_fail;
 387         }
 388 #else
 389         xf86Msg(X_NOT_IMPLEMENTED, "%s: device autodetection not implemented, sorry\n", local->name);
 390         goto SetupProc_fail;
 391 #endif
 392     }
 393
 394     local->fd = xf86OpenSerial (local->options);
 395     if (local->fd == -1)
 396     {
 397         xf86Msg(X_ERROR, "%s: unable to open device\n", local->name);
 398         goto SetupProc_fail;
 399     }
 400     xf86ErrorFVerb( 6, "tty port opened successfully\n" );
 401
 402 #ifdef LINUX_INPUT
 403     if (IsUSBLine(local->fd)) {
 404         priv->flags |= USB_FLAG;
 405
 406         local->read_input = USBReadInput;
 407
 408         if (USBQueryHardware(local) != Success)
 409         {
 410             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 411             goto SetupProc_fail;
 412         }
 413     } else
 414 #endif
 415     {
 416         local->read_input = ReadInput;
 417
 418         msgtype = X_DEFAULT;
 419         if (xf86FindOptionValue(local->options, "ReportSpeed")) {
 420             msgtype = X_CONFIG;
 421             speed = xf86SetIntOption(local->options, "ReportSpeed", 85 );
 422         } else {
 423             speed = 85;
 424         }
 425
 426         switch (speed)
 427         {
 428             case 120:
 429                 priv->acecadReportSpeed = 'Q';
 430                 break;
 431             case 85:
 432                 priv->acecadReportSpeed = 'R';
 433                 break;
 434             case 10:
 435                 priv->acecadReportSpeed = 'S';
 436                 break;
 437             case 2:
 438                 priv->acecadReportSpeed = 'T';
 439                 break;
 440             default:
 441                 priv->acecadReportSpeed = 'R';
 442                 speed = 85;
 443                 xf86Msg(X_ERROR, "%s: ReportSpeed value %d invalid. Possible values: 120, 85, 10, 2. Defaulting to 85\n", local->name, speed);
 444                 msgtype = X_DEFAULT;
 445         }
 446
 447         xf86Msg(msgtype, "%s report %d points/s\n", local->name, speed);
 448
 449         priv->buffer = XisbNew (local->fd, 200);
 450
 451         /*
 452          * Verify that hardware is attached and fuctional
 453          */
 454         if (QueryHardware(priv) != Success)
 455         {
 456             xf86Msg(X_ERROR, "%s: unable to query/initialize hardware (not an %s?).\n", local->name, local->type_name);
 457             goto SetupProc_fail;
 458         }
 459     }
 460
 461     s = xf86FindOptionValue(local->options, "Mode");
 462     msgtype = s ? X_CONFIG : X_DEFAULT;
 463     if (!(s && (xf86NameCmp(s, "relative") == 0)))
 464     {
 465         priv->flags |= ABSOLUTE_FLAG;
 466     }
 467
 468     xf86Msg(msgtype, "%s is in %s mode\n", local->name, (priv->flags & ABSOLUTE_FLAG) ? "absolute" : "relative");
 469     DBG (9, XisbTrace (priv->buffer, 1));
 470
 471     local->history_size = xf86SetIntOption(local->options , "HistorySize", 0);
 472
 473     xf86ProcessCommonOptions(local, local->options);
 474
 475     local->flags |= XI86_CONFIGURED;
 476
 477     if (local->fd != -1)
 478     {
 479         RemoveEnabledDevice (local->fd);
 480         if (priv->buffer)
 481         {
 482             XisbFree(priv->buffer);
 483             priv->buffer = NULL;
 484         }
 485         xf86CloseSerial(local->fd);
 486     }
 487     RemoveEnabledDevice (local->fd);
 488     local->fd = -1;
 489     return local;
 490
 491     /*
 492      * If something went wrong, cleanup and return NULL
 493      */
 494 SetupProc_fail:
 495     if ((local) && (local->fd))
 496         xf86CloseSerial (local->fd);
 497     if ((priv) && (priv->buffer))
 498         XisbFree (priv->buffer);
 499     if (priv) {
 500         xfree (priv);
 501         if (local)
 502                 local->private = NULL;
 503     }
 504     xf86DeleteInput(local, 0);
 505     return NULL;
 506 }
 507
 508 static Bool
 509 DeviceControl (DeviceIntPtr dev, int mode)
 510 {
 511     Bool RetValue;
 512
 513     switch (mode)
 514     {
 515         case DEVICE_INIT:
 516             DeviceInit(dev);
 517             RetValue = Success;
 518             break;
 519         case DEVICE_ON:
 520             RetValue = DeviceOn(dev);
 521             break;
 522         case DEVICE_OFF:
 523             RetValue = DeviceOff(dev);
 524             break;
 525         case DEVICE_CLOSE:
 526             RetValue = DeviceClose(dev);
 527             break;
 528         default:
 529             RetValue = BadValue;
 530     }
 531
 532     return RetValue;
 533 }
 534
 535 static Bool
 536 DeviceOn (DeviceIntPtr dev)
 537 {
 538     char buffer[256];
 539     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 540     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 541
 542     xf86MsgVerb(X_INFO, 4, "%s Device On\n", local->name);
 543
 544     local->fd = xf86OpenSerial(local->options);
 545     if (local->fd == -1)
 546     {
 547         xf86Msg(X_WARNING, "%s: cannot open input device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 548         priv->flags &= ~AVAIL_FLAG;
 549 #ifdef LINUX_INPUT
 550         if ((priv->flags & AUTODEV_FLAG) && AceCadAutoDevProbe(local, 4))
 551             local->fd = xf86OpenSerial(local->options);
 552         if (local->fd == -1)
 553 #endif
 554             return !Success;
 555     }
 556     priv->flags |= AVAIL_FLAG;
 557
 558
 559     if (!(priv->flags & USB_FLAG)) {
 560         priv->buffer = XisbNew(local->fd, 200);
 561         if (!priv->buffer)
 562         {
 563             xf86CloseSerial(local->fd);
 564             local->fd = -1;
 565             return !Success;
 566         }
 567
 568         /* Rets qu'a l'envoyer a la tablette */
 569         sprintf(buffer, "%s%c%c%c%c", acecad_initstr, priv->acecadReportSpeed, ACECAD_INCREMENT, 32 + priv->acecadInc, (priv->flags & ABSOLUTE_FLAG)? ACECAD_ABSOLUTE: ACECAD_RELATIVE);
 570         XisbWrite (priv->buffer, (unsigned char *)buffer, strlen(buffer));
 571     }
 572
 573     xf86FlushInput(local->fd);
 574     xf86AddEnabledDevice (local);
 575     dev->public.on = TRUE;
 576     return Success;
 577 }
 578
 579 static Bool
 580 DeviceOff (DeviceIntPtr dev)
 581 {
 582     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 583     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 584
 585     xf86MsgVerb(X_INFO, 4, "%s Device Off\n", local->name);
 586
 587     if (local->fd != -1)
 588     {
 589         RemoveEnabledDevice (local->fd);
 590         if (priv->buffer)
 591         {
 592             XisbFree(priv->buffer);
 593             priv->buffer = NULL;
 594         }
 595         xf86CloseSerial(local->fd);
 596     }
 597
 598
 599     xf86RemoveEnabledDevice (local);
 600     dev->public.on = FALSE;
 601     return Success;
 602 }
 603
 604 static Bool
 605 DeviceClose (DeviceIntPtr dev)
 606 {
 607     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 608
 609     xf86MsgVerb(X_INFO, 4, "%s Device Close\n", local->name);
 610
 611     return Success;
 612 }
 613
 614 static void
 615 ControlProc(DeviceIntPtr dev, PtrCtrl *ctrl)
 616 {
 617     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 618
 619     xf86MsgVerb(X_INFO, 4, "%s Control Proc\n", local->name);
 620 }
 621
 622 static Bool
 623 DeviceInit (DeviceIntPtr dev)
 624 {
 625     int rx, ry;
 626     LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
 627     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 628     unsigned char map[] =
 629     {0, 1, 2, 3};
 630
 631     xf86MsgVerb(X_INFO, 4, "%s Init\n", local->name);
 632
 633     /* 3 boutons */
 634     if (InitButtonClassDeviceStruct (dev, 3, map) == FALSE)
 635     {
 636         xf86Msg(X_ERROR, "%s: unable to allocate ButtonClassDeviceStruct\n", local->name);
 637         return !Success;
 638     }
 639
 640     if (InitFocusClassDeviceStruct (dev) == FALSE)
 641     {
 642         xf86Msg(X_ERROR, "%s: unable to allocate FocusClassDeviceStruct\n", local->name);
 643         return !Success;
 644     }
 645
 646     if (InitPtrFeedbackClassDeviceStruct(dev, ControlProc) == FALSE) {
 647         xf86Msg(X_ERROR, "%s: unable to init ptr feedback\n", local->name);
 648         return !Success;
 649     }
 650
 651
 652     /* 3 axes */
 653     if (InitValuatorClassDeviceStruct (dev, 3, xf86GetMotionEvents,
 654                 local->history_size,
 655                 ((priv->flags & ABSOLUTE_FLAG)? Absolute: Relative)|OutOfProximity)
 656             == FALSE)
 657     {
 658         xf86Msg(X_ERROR, "%s: unable to allocate ValuatorClassDeviceStruct\n", local->name);
 659         return !Success;
 660     }
 661     else
 662     {
 663
 664         InitValuatorAxisStruct(dev,
 665                 0,
 666                 0,                      /* min val */
 667                 priv->acecadMaxX,       /* max val */
 668                 1000,                   /* resolution */
 669                 0,                      /* min_res */
 670                 1000);                  /* max_res */
 671         InitValuatorAxisStruct(dev,
 672                 1,
 673                 0,                      /* min val */
 674                 priv->acecadMaxY,       /* max val */
 675                 1000,                   /* resolution */
 676                 0,                      /* min_res */
 677                 1000);                  /* max_res */
 678         InitValuatorAxisStruct(dev,
 679                 2,
 680                 0,                      /* min val */
 681                 priv->acecadMaxZ,       /* max val */
 682                 1000,                   /* resolution */
 683                 0,                      /* min_res */
 684                 1000);          /* max_res */
 685
 686     }
 687
 688     if (InitProximityClassDeviceStruct (dev) == FALSE)
 689     {
 690         xf86Msg(X_ERROR, "%s: unable to allocate ProximityClassDeviceStruct\n", local->name);
 691         return !Success;
 692     }
 693
 694     xf86MotionHistoryAllocate (local);
 695
 696
 697     /* On ne peut pas calculer l'increment avant, faute d'ecran pour
 698        connaitre la taille... */
 699
 700     if (priv->acecadInc > 95)
 701         priv->acecadInc = 95;
 702     if (priv->acecadInc < 1)
 703     {
 704         /* guess the best increment value given video mode */
 705         rx = priv->acecadMaxX / screenInfo.screens[0]->width;
 706         ry = priv->acecadMaxY / screenInfo.screens[0]->height;
 707         if (rx < ry)
 708             priv->acecadInc = rx;
 709         else
 710             priv->acecadInc = ry;
 711         if (priv->acecadInc < 1)
 712             priv->acecadInc = 1;
 713     }
 714
 715     xf86Msg(X_INFO, "%s Increment: %d\n", local->name, priv->acecadInc);
 716
 717     return Success;
 718 }
 719
 720 static void
 721 ReadInput (LocalDevicePtr local)
 722 {
 723     int x, y, z;
 724     int prox, buttons;
 725     int is_core_pointer = 1, is_absolute;
 726     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 727
 728     /*xf86Msg(X_INFO, "ACECAD Tablet Read Input\n");*/
 729
 730     is_absolute = (priv->flags & ABSOLUTE_FLAG);
 731 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 732     is_core_pointer = xf86IsCorePointer(local->dev);
 733 #endif
 734
 735     /*
 736      * set blocking to -1 on the first call because we know there is data to
 737      * read. Xisb automatically clears it after one successful read so that
 738      * succeeding reads are preceeded buy a select with a 0 timeout to prevent
 739      * read from blocking indefinately.
 740      */
 741     XisbBlockDuration (priv->buffer, -1);
 742
 743     while (AceCadGetPacket (priv) == Success)
 744     {
 745         x = (int)priv->packet[1] | ((int)priv->packet[2] << 7);
 746         y = (int)priv->packet[3] | ((int)priv->packet[4] << 7);
 747
 748         if (!(priv->flags & ABSOLUTE_FLAG))
 749         {
 750             x = priv->packet[0] & XSIGN_BIT? x:-x;
 751             y = priv->packet[0] & YSIGN_BIT? y:-y;
 752         }
 753         else
 754         {
 755             y = priv->acecadMaxY - y ;
 756         }
 757
 758
 759         z = ((int)priv->packet[5] << 2) |
 760             (((int)priv->packet[6] & 0x01) << 1) |
 761             (((int)priv->packet[6] & 0x10) >> 4);
 762
 763         buttons = ((int)priv->packet[0] & 0x07) |
 764             ((int)priv->packet[6] & 0x02 << 2);
 765
 766         prox = (priv->packet[0] & PROXIMITY_BIT)? 0: 1;
 767
 768         if (prox)
 769         {
 770             if (!(priv->acecadOldProximity))
 771                 if (!is_core_pointer)
 772                 {
 773                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxIN %d %d %d\n",x, y, z);*/
 774                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 775                 }
 776
 777             if ((is_absolute && ((priv->acecadOldX != x) || (priv->acecadOldY != y) || (priv->acecadOldZ != z)))
 778                     || (!is_absolute && (x || y)))
 779             {
 780                 if (is_absolute || priv->acecadOldProximity)
 781                 {
 782                     /*xf86Msg(X_INFO, "ACECAD Tablet Motion %d %d %d\n", x, y, z);*/
 783                     xf86PostMotionEvent(local->dev, is_absolute, 0, 3, x, y, z);
 784                 }
 785             }
 786
 787             if (priv->acecadOldButtons != buttons)
 788             {
 789                 int delta = buttons ^ priv->acecadOldButtons;
 790                 while (delta)
 791                 {
 792                     int id = ffs(delta);
 793                     delta &= ~(1 << (id-1));
 794
 795                     /*xf86Msg(X_INFO, "ACECAD Tablet Button %d 0x%x\n",id,(buttons&(1<<(id-1))));*/
 796                     xf86PostButtonEvent(local->dev, is_absolute, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 797                 }
 798             }
 799
 800             priv->acecadOldButtons = buttons;
 801             priv->acecadOldX = x;
 802             priv->acecadOldY = y;
 803             priv->acecadOldZ = z;
 804             priv->acecadOldProximity = prox;
 805         }
 806         else
 807         {
 808             if (!is_core_pointer)
 809                 if (priv->acecadOldProximity)
 810                 {
 811                     /*xf86Msg(X_INFO, "ACECAD Tablet ProxOUT %d %d %d\n",x, y, z);*/
 812                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 813                 }
 814             priv->acecadOldProximity = 0;
 815         }
 816     }
 817     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 818 }
 819
 820 #ifdef LINUX_INPUT
 821 #define set_bit(byte,nb,bit)    (bit ? byte | (1<<nb) : byte & (~(1<<nb)))
 822 static void
 823 USBReadInput (LocalDevicePtr local)
 824 {
 825     int len;
 826     struct input_event * event;
 827     char eventbuf[sizeof(struct input_event) * MAX_EVENTS];
 828     AceCadPrivatePtr priv = (AceCadPrivatePtr) (local->private);
 829     int x = priv->acecadOldX;
 830     int y = priv->acecadOldY;
 831     int z = priv->acecadOldZ;
 832     int prox = priv->acecadOldProximity;
 833     int buttons = priv->acecadOldButtons;
 834     int is_core_pointer = 1;
 835 #if GET_ABI_MAJOR(ABI_XINPUT_VERSION) == 0
 836     is_core_pointer = xf86IsCorePointer(local->dev);
 837 #endif
 838     /* Is autodev active? */
 839     int autodev = priv->flags & AUTODEV_FLAG;
 840     /* Was the device available last time we checked? */
 841     int avail = priv->flags & AVAIL_FLAG;
 842
 843     SYSCALL(len = read(local->fd, eventbuf, sizeof(eventbuf)));
 844
 845     if (len <= 0) {
 846         if (avail) {
 847             xf86Msg(X_ERROR, "%s: error reading device %s: %s\n", local->name, xf86FindOptionValue(local->options, "Device"), strerror(errno));
 848         }
 849         if (NOTAVAIL) {
 850             priv->flags &= ~AVAIL_FLAG;
 851             if(autodev) {
 852                 if (AceCadAutoDevProbe(local, 4)) {
 853                     DeviceOff(local->dev);
 854                     DeviceOn(local->dev);
 855                 }
 856             }
 857         }
 858         return;
 859     } else {
 860         if (!avail) {
 861             /* If the device wasn't available last time we checked */
 862             xf86Msg(X_INFO, "%s: device %s is available again\n", local->name, xf86FindOptionValue(local->options, "Device"));
 863             priv->flags |= AVAIL_FLAG;
 864         }
 865     }
 866
 867     for (event = (struct input_event *)eventbuf;
 868             event < (struct input_event *)(eventbuf+len); event++) {
 869
 870         switch (event->type) {
 871             case EV_SYN: /* 2.6.x */
 872                 if (event->code != SYN_REPORT)
 873                     xf86Msg(X_ERROR, "%s: unknown EV_SYN code %d\n", local->name, event->code);
 874                 break;
 875             case EV_ABS:
 876                 switch (event->code) {
 877                     case ABS_X:
 878                         x = event->value;
 879                         break;
 880
 881                     case ABS_Y:
 882                         y = event->value;
 883                         break;
 884
 885                     case ABS_PRESSURE:
 886                         z = event->value;
 887                         break;
 888
 889                     case ABS_MISC:
 890                         break;
 891
 892                 }
 893                 break; /* EV_ABS */
 894
 895             case EV_KEY:
 896                 switch (event->code) {
 897                     case BTN_TOOL_PEN:
 898                         prox = event->value;
 899                         break;
 900
 901                     case BTN_TOUCH:
 902                         buttons = set_bit(buttons,0,event->value);
 903                         break;
 904
 905                     case BTN_STYLUS:
 906                         buttons = set_bit(buttons,1,event->value);
 907                         break;
 908
 909                     case BTN_STYLUS2:
 910                         buttons = set_bit(buttons,2,event->value);
 911                         break;
 912                 }
 913                 break; /* EV_KEY */
 914             default:
 915                 xf86Msg(X_ERROR, "%s: unknown event type/code %d/%d\n", local->name, event->type, event->code);
 916         } /* switch event->type */
 917
 918         /* Linux Kernel 2.6.x sends EV_SYN/SYN_REPORT as an event terminator,
 919          * whereas 2.4.x sends EV_ABS/ABS_MISC. We have to support both.
 920          */
 921         if (!(  (event->type == EV_SYN && event->code == SYN_REPORT) ||
 922                     (event->type == EV_ABS && event->code == ABS_MISC)
 923              )) {
 924             continue;
 925         }
 926
 927         if (prox)
 928         {
 929             if (!(priv->acecadOldProximity))
 930                 if (!is_core_pointer)
 931                 {
 932                     xf86PostProximityEvent(local->dev, 1, 0, 3 , x, y, z);
 933                 }
 934
 935
 936             xf86PostMotionEvent(local->dev, 1, 0, 3, x, y, z);
 937
 938             if (priv->acecadOldButtons != buttons)
 939             {
 940                 int delta = buttons ^ priv->acecadOldButtons;
 941                 while (delta)
 942                 {
 943                     int id = ffs(delta);
 944                     delta &= ~(1 << (id-1));
 945
 946                     xf86PostButtonEvent(local->dev, 1, id, (buttons&(1<<(id-1))), 0, 3, x, y,z);
 947                 }
 948             }
 949         }
 950         else
 951         {
 952             if (!is_core_pointer)
 953                 if (priv->acecadOldProximity)
 954                 {
 955                     xf86PostProximityEvent(local->dev, 0, 0, 3, x,y,z);
 956                 }
 957             priv->acecadOldProximity = 0;
 958         }
 959
 960         priv->acecadOldButtons = buttons;
 961         priv->acecadOldX = x;
 962         priv->acecadOldY = y;
 963         priv->acecadOldZ = z;
 964         priv->acecadOldProximity = prox;
 965     }
 966     /*xf86Msg(X_INFO, "ACECAD Tablet Sortie Read Input\n");*/
 967 }
 968 #endif
 969
 970 static void
 971 CloseProc (LocalDevicePtr local)
 972 {
 973 }
 974
 975 /*
 976  * The ConvertProc function may need to be tailored for your device.
 977  * This function converts the device's valuator outputs to x and y coordinates
 978  * to simulate mouse events.
 979  */
 980 static Bool
 981 ConvertProc (LocalDevicePtr local, int first, int num,
 982         int v0, int v1, int v2, int v3, int v4, int v5,
 983         int *x, int *y)
 984 {
 985     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
 986
 987     *x = v0 * screenInfo.screens[0]->width / priv->acecadMaxX;
 988     *y = v1 * screenInfo.screens[0]->height / priv->acecadMaxY;
 989     return TRUE;
 990 }
 991
 992
 993 static Bool
 994 ReverseConvertProc (LocalDevicePtr local,
 995         int x, int  y,
 996         int *valuators)
 997 {
 998     AceCadPrivatePtr priv = (AceCadPrivatePtr)(local->private);
 999
1000     valuators[0] = x * priv->acecadMaxX / screenInfo.screens[0]->width;
1001     valuators[1] = y * priv->acecadMaxY / screenInfo.screens[0]->height;
1002
1003     return TRUE;
1004 }
1005
1006
1007 #define WriteString(str)\
1008     XisbWrite (priv->buffer, (unsigned char *)(str), strlen(str))
1009
1010
1011 static Bool
1012 QueryHardware (AceCadPrivatePtr priv)
1013 {
1014
1015     /* Reset */
1016     WriteString("z0");
1017
1018     /* Wait */
1019     milisleep (250);
1020
1021     /* Prompt Mode in order to not be disturbed */
1022     WriteString(ACECAD_PROMPT_MODE);
1023
1024     /* Flush */
1025     while (XisbRead(priv->buffer) >= 0);
1026
1027     /* Ask for Config packet*/
1028     WriteString(ACECAD_CONFIG);
1029
1030     /* Read the packet */
1031     XisbBlockDuration (priv->buffer, 1000000);
1032     NewPacket (priv);
1033
1034     /*xf86Msg(X_CONFIG, "ACECAD Tablet init envoyé \n");*/
1035
1036     if ((AceCadGetPacket (priv) == Success))
1037     {
1038         priv->acecadMaxX = (int)priv->packet[1] + ((int)priv->packet[2] << 7);
1039         priv->acecadMaxY = (int)priv->packet[3] + ((int)priv->packet[4] << 7);
1040         priv->acecadMaxZ = 512;
1041         xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d\n", priv->acecadMaxX, priv->acecadMaxY);
1042     }
1043     else
1044         return !Success;
1045
1046     /*xf86Msg(X_INFO, "ACECAD Tablet query hardware fini \n");*/
1047     return Success;
1048 }
1049
1050 #define BITS_PER_LONG (sizeof(long) * 8)
1051 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
1052 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
1053 #define OFF(x)  ((x)%BITS_PER_LONG)
1054 #define LONG(x) ((x)/BITS_PER_LONG)
1055
1056 #ifdef LINUX_INPUT
1057 static Bool
1058 USBQueryHardware (LocalDevicePtr local)
1059 {
1060     AceCadPrivatePtr    priv = (AceCadPrivatePtr) local->private;
1061     unsigned long       bit[EV_MAX][NBITS(KEY_MAX)];
1062     int                 i, j;
1063     int                 abs[5];
1064     char                name[256] = "Unknown";
1065
1066     ioctl(local->fd, EVIOCGNAME(sizeof(name)), name);
1067     xf86MsgVerb(X_PROBED, 4, "Kernel Input device name: \"%s\"\n", name);
1068
1069     memset(bit, 0, sizeof(bit));
1070     ioctl(local->fd, EVIOCGBIT(0, EV_MAX), bit[0]);
1071
1072     for (i = 0; i < EV_MAX; i++)
1073         if (test_bit(i, bit[0])) {
1074             ioctl(local->fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
1075             for (j = 0; j < KEY_MAX; j++)
1076                 if (test_bit(j, bit[i])) {
1077                     if (i == EV_ABS) {
1078                         ioctl(local->fd, EVIOCGABS(j), abs);
1079                         switch (j) {
1080                             case ABS_X:
1081                                 priv->acecadMaxX = abs[2];
1082                                 break;
1083
1084                             case ABS_Y:
1085                                 priv->acecadMaxY = abs[2];
1086                                 break;
1087
1088                             case ABS_PRESSURE:
1089                                 priv->acecadMaxZ = abs[2];
1090                                 break;
1091                         }
1092                     }
1093                 }
1094         }
1095
1096     xf86Msg(X_PROBED, "ACECAD Tablet MaxX:%d MaxY:%d MaxZ:%d\n", priv->acecadMaxX, priv->acecadMaxY, priv->acecadMaxZ);
1097     return Success;
1098 }
1099 #endif
1100
1101 static void
1102 NewPacket (AceCadPrivatePtr priv)
1103 {
1104     priv->packeti = 0;
1105 }
1106
1107 static Bool
1108 AceCadGetPacket (AceCadPrivatePtr priv)
1109 {
1110     int count = 0;
1111     int c = 0;
1112
1113     while((c = XisbRead(priv->buffer)) >= 0 )
1114     {
1115
1116         /*
1117          * fail after 500 bytes so the server doesn't hang forever if a
1118          * device sends bad data.
1119          */
1120         if (count++ > 500)
1121         {
1122             NewPacket (priv);
1123             return !Success;
1124         }
1125
1126         if (c & PHASING_BIT)
1127         {
1128             NewPacket(priv);
1129
1130             /*xf86Msg(X_CONFIG, "Push %2.2x\n",(char) c);*/
1131             XisbBlockDuration (priv->buffer, 10000);
1132             priv->packet[priv->packeti++] = c;
1133             count = ACECAD_PACKET_SIZE - 1;
1134             while (count-- && (c = XisbRead(priv->buffer)) >= 0)
1135             {
1136                 /*xf86Msg(X_INFO, "Push %2.2x\n",(char) c);*/
1137                 priv->packet[priv->packeti++] = c;
1138             }
1139             XisbBlockDuration (priv->buffer, 0);
1140             if(c > 0)
1141                 return Success;
1142         }
1143     }
1144     return !Success;
1145 }